JP4986748B2 - Multi-layer flow path member of ultrasonic fluid measuring device - Google Patents

Description

  The present invention relates to a multilayer of an ultrasonic fluid measurement device having a partition plate arranged in a rectangular tube-shaped measurement flow channel formed in an ultrasonic fluid measurement device and partitioning the measurement flow channel into a plurality of flat flow channels. The present invention relates to a flow path member.

The ultrasonic fluid measurement device flows a fluid through a measurement channel, propagates the ultrasonic wave in the measurement channel, measures the propagation time of the ultrasonic wave, and obtains the flow velocity of the fluid based on the measured information. Is.
This measurement channel has a rectangular tube shape with a rectangular cross section, and a pair of transmission / reception units are provided on the opposing short side surfaces.

The pair of transmission / reception units are arranged so as to transmit and receive ultrasonic waves along a line that intersects the flow direction of the measurement flow channel at a predetermined angle.
In recent years, in order to improve the measurement accuracy, an ultrasonic fluid measuring apparatus in which a plurality of partition walls are arranged in parallel in the measurement flow path and the measurement flow path is a multilayer flow path has been proposed. (For example, refer to Patent Document 1).
International Publication No. 04/074783 Pamphlet

  However, in the ultrasonic fluid measuring device described in Patent Document 1 described above, the partition plate that forms the multilayer flow path is integrally provided at a predetermined position. Adjustment was difficult and there was no versatility. Moreover, since there was no versatility, there existed a problem that cost became high.

  An object of the present invention is to provide a multilayer flow path member of an ultrasonic fluid measuring device that has been made in order to solve the conventional problems and can be versatile and can reduce costs. To do.

  The multilayer flow path member of the ultrasonic fluid measurement device of the present invention is disposed in a rectangular tube-shaped measurement flow channel formed in the ultrasonic fluid measurement device, and divides the measurement flow channel into a plurality of flat flow channels. A multilayer flow path member of an ultrasonic fluid measuring device having a partition plate, comprising: a support portion that supports an edge portion in a fluid flow direction of the partition plate and rises in a thickness direction of the partition plate. It has a structure which has a partition member and is formed by laminating | stacking the said partition member in multiple numbers.

  With this configuration, when providing a partition plate that divides the rectangular tubular measurement channel formed in the ultrasonic fluid measurement device into a flat channel, the edge of the partition plate is supported and the thickness of the partition plate is increased. Since the partition member having the height is arranged, the partition plate can be held at a predetermined interval. Moreover, since the space | interval of a partition plate is determined by the height of a partition member, the space | interval of a partition plate can be adjusted and the height of a flat flow path can be adjusted. For this reason, it is rich in versatility, and cost reduction can be achieved.

  Moreover, the multilayer flow path member of the ultrasonic fluid measuring device of the present invention has a configuration in which the partition member includes the partition plate and a prismatic support portion that sandwiches the partition plate in the thickness direction. Yes.

  With this configuration, since the partition plate is supported by the prismatic support portion of the partition member that sandwiches the partition plate in the thickness direction, the partition plate is adjusted to a desired height by adjusting the height of the support portion. Can do.

  Furthermore, the multilayer flow path member of the ultrasonic fluid measuring device according to the present invention has a configuration in which the partition member includes the partition plate and a prismatic support portion attached to one surface of the partition plate. Yes.

  With this configuration, since the partition plate is supported by the prismatic support portion of the partition member attached to one side of the partition plate, the partition plate is adjusted to a desired height by adjusting the height of the support portion. Can do.

  Furthermore, in the multilayer flow path member of the ultrasonic fluid measuring device of the present invention, the partition member is the partition plate, a bent portion provided in the entire area of both edges of the partition plate, and each bent portion. And a filter member that transmits ultrasonic waves, and a prismatic support portion that is attached to one surface of the partition plate and extends along the bent portion.

  With this configuration, the partition members are stacked at predetermined intervals via the columnar support portions provided along the bent portions provided on the entire edges of the partition plate to form a multi-layered flat flow path. To do. Then, an ultrasonic wave is transmitted through the filter member provided at a predetermined position of the bent portion, and the velocity of the fluid is detected.

  Further, in the multilayer flow path member of the ultrasonic fluid measuring device of the present invention, the partition member includes the partition plate, a bent portion provided at a predetermined position of both edge portions of the partition plate, and each of the folds. A filter member that is provided in the bent portion and transmits ultrasonic waves; and a prismatic support portion that is attached to one side of the partition plate and extends along the bent portion, and the inner surface of the bent portion and the support portion And the inner surface of the same has a configuration along the same plane.

  With this configuration, the partition members are stacked at predetermined intervals via the columnar support portions provided along the bent portions provided at predetermined positions on both edges of the partition plate, and the multi-layer flat flow path is formed. Form. Then, an ultrasonic wave is transmitted through the filter member provided in the bent portion, and the velocity of the fluid is detected.

  Furthermore, the multilayer flow path member of the ultrasonic fluid measuring device of the present invention has a configuration in which the support portion is formed by bending both edge portions of the partition plate.

  With this configuration, the partition member is laminated at a predetermined interval via a support portion formed by bending both edge portions of the partition plate to form a multilayer flat flow path.

  Furthermore, in the multilayer flow path member of the ultrasonic fluid measuring device according to the present invention, the partition member is formed by integrally molding a plurality of the partition plates and a wall portion connecting the partition plates. It has the structure currently formed in the shape.

  With this configuration, the partition member is formed into a flat rectangular tube shape in which a plurality of partition plates are connected at a predetermined interval by a wall portion by integral molding, so that the flat channel is formed by stacking the partition members. A multilayer flow path member can be formed.

  Further, the multilayer flow path member of the ultrasonic fluid measuring device of the present invention is configured such that the partition member is formed by integrally molding the plurality of partition plates and a wall portion connecting the partition plates. It has the structure currently formed in the shape.

  With this configuration, the partition member is formed in a substantially U-shape by connecting a plurality of partition plates at a predetermined interval by a wall portion by integral molding, so that the flat flow path is formed by stacking the partition members. A multilayer flow path member can be formed.

  Furthermore, the multilayer flow path member of the ultrasonic fluid measuring device of the present invention has a configuration in which the partition member is integrated by a connecting pin that penetrates the support portion at once.

  With this configuration, the connecting pins collectively penetrate the support portions of the stacked partition members, so that each partition member can be positioned reliably.

  Furthermore, the multilayer flow path member of the ultrasonic fluid measuring device of the present invention has a configuration in which a water repellent treatment is performed on a filter member that is provided on the support and transmits ultrasonic waves.

  With this configuration, since the water repellent treatment is applied to the filter member, the fluid hitting the filter member is repelled and clogging by the fluid is less likely to occur, so that the measurement accuracy can be improved.

  And the multilayer flow path member of the ultrasonic fluid measuring device of the present invention has a configuration in which the partition member is integrated by a connection pin provided in the support portion and a connection hole into which the connection pin is inserted. Have.

  With this configuration, a connecting pin for fixing the partition members in a stacked state is not necessary, and the manufacturing cost can be reduced.

  In the multilayer flow path member of the ultrasonic fluid measurement device of the present invention, the partition member has a configuration in which at least one of the connection pin and the connection hole is tapered.

  With this configuration, since one of the outer surface of the connection pin and the inner surface of the connection hole is a tapered surface, the other of the outer surface of the connection pin and the inner surface of the connection hole is in line contact with the tapered surface. In the state where the partition members are stacked, the play of the partition members due to the dimensional tolerances of the connection pins and the connection holes does not occur.

  The present invention supports the edge of the partition plate and provides it in the thickness direction of the partition plate when providing the partition plate that partitions the rectangular tubular measurement channel formed in the ultrasonic fluid measurement device into a flat channel. Since the partition member having the height is arranged, the partition plate can be held at a predetermined interval. Moreover, since the space | interval of a partition plate is determined by the height of a partition member, the space | interval of a partition plate can be adjusted and the height of a flat flow path can be adjusted. For this reason, it is rich in versatility and can provide the multilayer flow path member of the ultrasonic fluid measuring device having the effect of being able to reduce the cost.

(First embodiment)
Hereinafter, the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing an ultrasonic fluid measuring apparatus that can use the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the first embodiment of the present invention, and FIG. 2 is a first embodiment of the present invention. 3 is an exploded perspective view of a partition member constituting the multilayer flow path member of the ultrasonic fluid measuring apparatus according to FIG. 3, FIG. 3 is a perspective view showing a state in which the partition members are laminated to form a multilayer flow path member, and FIG. It is a front view of a road member.

  As shown in FIG. 1, the ultrasonic fluid measurement device 10 according to the first embodiment includes a horizontal flow that connects left and right vertical flow paths 12 and 13 and upper ends of the left and right vertical flow paths 12 and 13. The fluid passage 11 is formed in a substantially inverted U shape with the passage 14. The horizontal flow path 14 has a measurement flow path 14a for measuring a fluid, and a pair of opposed inner surfaces 15a and 15b in the measurement flow path 14a are each a first transducer (here, a transmitter). An ultrasonic measurement unit 20 having 21 and a second transducer (here, a receiver) 22 is provided. Furthermore, the measurement flow path 14a has a multilayer flow path member 30 that divides the fluid into a plurality of flat flow paths, and a lid 17 that houses the multilayer flow path member 30 in the measurement flow path 14a and seals it. Therefore, when the lid 17 is put on the horizontal flow path 14, the measurement flow path 14a is formed in a rectangular tube shape having a rectangular cross section.

  The ultrasonic propagation path 23 in the measurement direction connecting the first transducer 21 and the second transducer 22 is provided so as to cross obliquely with respect to the fluid flow direction. As described above, the arrangement pattern arranged at an angle with respect to the flow such as the first and second transducers 21 and 22 is called the Z path (Z-path) or the Z method. In this embodiment, this Z path arrangement is illustrated.

  As shown in FIG. 1, the side walls 16a and 16b of the horizontal flow path 14 are provided with triangular transducer mounting portions 18 and 18 that protrude outward. For example, a circular through hole 18a penetrating in the direction connecting the two transducer attachment portions 18 and 18 is provided in both the transducer attachment portions 18 and 18 and the side walls 16a and 16b, thereby forming an ultrasonic propagation path. Has been. Note that a first transducer 21 is attached to one transducer attachment portion 18, and a second transducer 22 is attached to the other transducer attachment portion 18.

  As shown in FIG. 2, the multilayer flow path member 30 according to the first embodiment of the present invention is arranged in a square tubular measurement flow path 14 a formed in the ultrasonic fluid measurement apparatus 10 described above, and the measurement flow It has the partition plate 32 which divides the path 14a into the some flat flow path 14b. And it has the partition member 31 provided with the support part 33 which stands up in the thickness direction of the partition plate 32 while supporting the edge part along the flow direction of the fluid in the partition plate 32, as shown in FIG. A multilayer flow path member 30 is formed by laminating a plurality of partition members 31.

  As shown in FIGS. 2 and 3, the partition plate 32 is a rectangular plate-like member, and a rectangular cutout 32 a is provided on each of the left and right sides. The support portion 33 is a square member having a rectangular cross section having a predetermined height H, and is composed of a long material 33a and a short material 33b in accordance with both side edges sandwiching the notch 32a of the partition plate 32. Filter grooves 33e are formed in the vertical direction on the opposing end surfaces of the long material 33a and the short material 33b. In addition, a fitting groove 33c is formed on the inner side surface of the support portion 33 over the entire length. By fitting both edge portions of the partition plate 32 into the fitting groove 33c, the partition plate 32 is moved in the thickness direction. It is pinched. The support portion 33 is provided with a plurality of through holes 33d penetrating in the vertical direction at predetermined positions. In addition, the partition plate 32 and the support part 33 can be formed with a metal or resin.

  The filter 34 includes a frame-shaped frame 34a and a filter member 34b such as a mesh or punching metal that is attached to the frame 34a and does not pass the fluid to be measured but passes ultrasonic waves. On the vertical side of the frame 34a, a fitting projection 34c that can be inserted into a filter groove 33e provided in the support portion 34 of the partition member 31 is provided in the vertical direction. The filter member 34b is preferably subjected to water repellency treatment. Thereby, the fluid hitting the filter member 34b is repelled and clogging due to the fluid is less likely to occur, so that the measurement accuracy can be improved.

Here, “water repellency” refers to the property of “repelling water” rather than “preventing water penetration” like waterproofing. As a water repellent treatment, for example,
1: Plasma is generated under atmospheric pressure, and a water repellent polymer is generated on the surface of the material by polymerization.
2: An ultra-thin film of fluorine is provided on the material surface.
3: A nanoscale functional film is formed on the surface of the material by organic thin film treatment. Etc. can be exemplified.

  Therefore, as shown in FIGS. 1 and 4, in order to form the multilayer flow path member 30, first, both edge ends of the partition plate 32 are inserted into the fitting grooves 33 c of the support portion 33, and then the partition member A plurality of 31 is formed. Then, the multilayer channel member 30 is formed by stacking the support portions 33 of the partition member 31 in the vertical direction. At this time, it is desirable to insert the connecting pin 35 into the through hole 33d of the support portion 33, and to position and integrate it reliably. And the filter 34 is inserted and attached between the long material 33a and the short material 33b in the support part 33 from the top. Thereby, the multilayer flow path member 30B is configured.

  As shown in FIG. 4, in the multilayer flow path member 30, the heights of the flow paths in the uppermost stage 31a and the lowermost stage 31b are different from the heights of the flow paths 31c in the other central part. Therefore, in order to adjust the height of the uppermost stage 31a and the lowermost stage 31b to the central part, the distance adjustment for not having the partition plate 32 above the support part 33 of the uppermost stage 31a and below the support part 33 of the lowermost stage 31b. It is necessary to provide the support portion 33f (see FIG. 1).

As described above, in the multilayer flow path member 30 of the ultrasonic fluid measurement device according to the first embodiment of the present invention described above, the rectangular tubular measurement flow channel 14a formed in the ultrasonic fluid measurement device 10 is replaced with a flat flow channel. When the partition plate 32 partitioned into 14b is provided, since the partition member 31 that supports the edge of the partition plate 32 and has a height in the thickness direction of the partition plate 32 is disposed, the partition plate 32 is held at a predetermined interval. can do. Moreover, since the space | interval of the partition plate 32 is determined by the height of the partition member 31, the space | interval of the partition plate 32 can be adjusted and the height of the flat flow path 14b can be adjusted. For this reason, it is rich in versatility, and cost reduction can be achieved.
In the partition member 31 described above, the partition plate 32 and the support portion 33 are formed as separate bodies. However, the partition plate 32 and the support portion 33 can be integrally formed by insert molding.

(Second Embodiment)
Next, the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the second embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part which is common in the multilayer flow-path member concerning 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.
FIG. 5 is an exploded perspective view of the partition member constituting the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the second embodiment of the present invention, and FIG. 6 is a state in which the multilayer member is formed by stacking the partition members. FIG. 7 is a front view of the multilayer flow path member.

  As shown in FIG. 5, the partition member 41 forming the multilayer flow path member 40 includes a partition plate 42 and a prismatic support portion 43 attached to one side (upper surface in FIG. 5) of the partition plate 42. is doing.

  As shown in FIGS. 5 and 6, the partition plate 42 is a rectangular plate-like member, and rectangular cutouts 42 a having the same width as the width W of the support portion 43 are provided on the left and right sides, respectively. . The support portion 43 is a square member having a rectangular cross section having a predetermined height H, and is composed of a long material 43a and a short material 43b in accordance with both side edges sandwiching the notch 42a of the partition plate 42. A partition plate notch 43 e having a depth T equal to the thickness T of the partition plate 42 is formed on the lower surface of the support portion 43. Filter grooves 43c are formed in the vertical direction on the opposing end surfaces of the long material 43a and the short material 43b, and a filter fitting groove 42b is also formed in the notch 42a of the partition plate 42.

  In addition, a plurality of through holes 43c and 42c penetrating in the vertical direction are provided in both edge portions of the support portion 43 and the partition plate 42 at corresponding predetermined positions. In addition, the partition plate 42 and the support part 43 can be formed with a metal or resin.

  Therefore, as shown in FIGS. 6 and 7, in order to form the multilayer flow path member 40, first, both edges of the partition plate 42 are formed in the partition plate notch 43 e on the lower surface of the support portion 43 (43 a, 43 b). The support part 43 is attached to the partition plate 42 so that the parts are fitted, and a plurality of partition members 41 are formed. Then, the multilayer channel member 40 is formed by stacking the support portions 43 of the partition member 41 in the vertical direction. At this time, it is desirable to insert the connecting pin 35 (see FIG. 1) into the through hole 43d of the support portion 43 and the through hole 42c of the partition plate 42. And the filter 34 is inserted and attached to the notch 42a of the partition plate 42 between the long material 43a and the short material 43b which oppose in the support part 43, ie ,. At this time, the filter 34 is attached by fitting the fitting protrusion 34 c of the filter 34 into the filter groove 43 c of the long material 43 a and the short material 43 b facing each other in the support portion 43 and the filter groove 42 b of the partition plate 42. Thereby, the multilayer flow path member 40 is comprised.

  As shown in FIG. 7, in this multilayer flow path member 40, in order to match the height of the flow path of the lowermost stage 41a with the height of the flow path 41b of the other central part, the partition plate 32 is used as the lowermost stage 41a. It is necessary to provide a support portion 43f for adjusting the distance that is not provided.

As described above, the multilayer flow path member 40 of the ultrasonic fluid measurement device according to the second embodiment of the present invention described above is the same as the multilayer flow path member 30 of the ultrasonic fluid measurement device according to the first embodiment described above. An effect can be obtained.
In the multilayer flow path member 40 described above, the partition member 41 is formed by providing the support portion 43 on the upper surface of the partition plate 42, but the partition member 41 is formed by providing the support portion 43 on the lower surface of the partition plate 42. You can also.
In the partition member 41 described above, the partition plate 42 and the support portion 43 are formed as separate bodies, but the partition plate 42 and the support portion 43 can be integrally formed by insert molding.

(Third embodiment)
Next, the multilayer flow path member of the ultrasonic fluid measurement apparatus according to the third embodiment of the present invention will be described with reference to the drawings. In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common in the multilayer flow path member concerning 1st and 2nd embodiment mentioned above, and the overlapping description is abbreviate | omitted.
FIG. 8A is a perspective view of a partition member constituting the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the second embodiment of the present invention, FIG. 8B is an exploded perspective view, and FIG. It is a front view of a channel member.

  As shown in FIG. 8, the multi-layer flow path member 50 of the ultrasonic fluid measurement device according to the third embodiment of the present invention has a partition member 51, a partition plate 52, and the entire area of both edges of the partition plate 52. The bent portion 53 provided, the filter member 53a provided at a predetermined position of each bent portion 53 and transmitting ultrasonic waves, and attached to one side (upper surface in FIG. 8) of the partition plate 52 and the bent portion And a prismatic support 54 along 53a.

  As shown in FIG. 8, the partition plate 52 is a rectangular plate-like member, and the left and right sides are bent up at right angles to form a bent portion 53. The support portion 54 is a rectangular member having a rectangular cross section having a predetermined height H, and a long material 54a and a short material 54b are fitted to both sides of the filter member 53a provided in the bent portion 53 of the partition plate 52. It consists of and. A partition plate notch 54 c having a depth T equal to the thickness T of the partition plate 52 is formed on the lower surface of the support portion 54, and the thickness of the bent portion 53 (that is, on the outer surface of the support portion 54 (that is, A bent portion cutout 54d having a depth T equal to the thickness T) of the partition plate 52 is formed.

  Further, the height H1 of the bent portion 53 is formed to be a height obtained by subtracting the plate thickness T of the partition plate 52 from the height H of the support portion 54, that is, H1 = HT. For this reason, the partition plate 52 is fitted into the partition plate cutout 54 c of the support portion 54, and the bent portion 53 is fitted into the cutout portion 54 d of the support portion 54, so that the support plate 54 is supported by the partition plate 52. Is attached, the upper surface of the support portion 54 and the upper surface of the bent portion 53 are flush with each other.

  Further, a plurality of through holes 54e and 52a penetrating in the vertical direction are provided at both edge portions of the support portion 54 and the partition plate 52 at corresponding predetermined positions. In addition, the partition plate 52 and the support part 54 can be formed with a metal or resin.

  Therefore, as shown in FIG. 9, in order to form the multilayer flow path member 50, first, both edge portions of the partition plate 52 are fitted into the partition plate notches 54c on the lower surface of the support portion 54 (54a, 54b). At the same time, a plurality of partition members 51 are formed by attaching the support portion 54 to the partition plate 52 so that the bent portion 53 fits into the notch 54d for the bent portion on the outer surface of the support portion 54. . Then, the multilayer flow path member 50 is formed by stacking the support portions 54 of the partition member 51 in the vertical direction. At this time, it is desirable to insert the connecting pin 35 (see FIG. 1) into the through hole 54e of the support portion 54 and the through hole 52a of the partition plate 52.

  As shown in FIG. 9, in this multilayer flow path member 50, in order to match the height of the flow path of the lowermost stage 51a with the height of the flow path 51b of the other central part, a partition plate 52 is used as the lowermost stage 51a. It is necessary to provide a support portion 54f for adjusting the distance that is not provided.

As described above, the multilayer flow path member 50 of the ultrasonic fluid measurement device according to the third embodiment of the present invention described above is the multilayer flow path member 30 of the ultrasonic fluid measurement device according to the first and second embodiments described above. The same effect can be obtained. Furthermore, in the multilayer flow path member 50, since the filter member 53a is provided in the bent part 53 which is a part of the partition plate 52, it is not necessary to separately provide the filter 34 as described above.
In the partition member 51 described above, the partition plate 52 and the support portion 54 are formed as separate bodies. However, the partition plate 52 and the support portion 54 can be integrally formed by insert molding.

(Fourth embodiment)
Next, the multilayer flow path member of the ultrasonic fluid measurement apparatus according to the fourth embodiment of the present invention will be described with reference to the drawings. In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common in the multilayer flow path member concerning 1st-3rd embodiment mentioned above, and the overlapping description is abbreviate | omitted.
FIG. 10A is a perspective view of a partition member constituting the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the second embodiment of the present invention, FIG. 10B is an exploded perspective view, and FIG. It is a front view of a channel member.

  As shown in FIG. 10, the multi-layer flow path member 60 of the ultrasonic fluid measuring device according to the fourth embodiment of the present invention has a partition member 61, a partition plate 62, and predetermined edges on both ends of the partition plate 62. The bent portion 63 provided at the position, the filter member 63a provided at each bent portion 63 and transmitting ultrasonic waves, and attached to one side (upper surface in FIG. 10) of the partition plate 62 and attached to the bent portion 63 It has a prismatic support part 64 along, and the inner surface of the bent part 63 and the inner surface of the support part 64 have a configuration along the same plane.

  As shown in FIG. 10, the partition plate 62 is a rectangular plate-like member, and a predetermined position on both the left and right sides is bent up at a right angle to form a bent portion 63. The support portion 64 is a square member having a rectangular cross section having a predetermined height H, and is composed of a long material 64 a and a short material 64 b in accordance with both sides sandwiching the bent portion 63 of the partition plate 62. A partition plate notch 64 c having a depth T equal to the thickness T of the partition plate 62 is formed on the lower surface of the support portion 64.

  Further, the height H1 of the bent portion 63 is formed to be a height obtained by subtracting the plate thickness T of the partition plate 62 from the height H of the support portion 64, that is, H1 = HT. For this reason, when the partition plate 62 is fitted to the partition plate notch 64c of the support portion 64 and the support portion 64 is attached to the partition plate 62, the upper surface of the support portion 64 and the upper surface of the bent portion 63 are flush with each other. become.

  In addition, a plurality of through holes 64d and 62a penetrating in the vertical direction are provided on both edge portions of the support portion 64 and the partition plate 62 at corresponding predetermined positions. In addition, the partition plate 62 and the support part 64 can be formed with a metal or resin.

  Therefore, as shown in FIG. 11, in order to form the multilayer flow path member 60, first, both edge ends of the partition plate 62 are fitted into the partition plate notches 64c on the lower surface of the support portion 64 (64a, 64b). At the same time, the long member 64a and the short member 64b are arranged on both sides of the bent portion 63, the support portion 64 is attached to the partition plate 62, and a plurality of partition members 61 are formed. And the support part 64 of the division member 61 is laminated | stacked on an up-down direction, and the multilayer flow-path member 60 is formed. At this time, it is desirable to insert the connecting pin 35 (see FIG. 1) into the through hole 64d of the support portion 64 and the through hole 62a of the partition plate 62.

  As shown in FIG. 11, in this multilayer flow path member 60, in order to match the height of the flow path of the lowermost stage 61a with the height of the flow path 61b of the other central part, a partition plate 62 is used as the lowermost stage 61a. It is necessary to provide a support portion 64e for adjusting the distance that does not have.

As described above, the multilayer flow path member 60 of the ultrasonic fluid measurement device according to the fourth embodiment of the present invention described above also includes the multilayer flow path member of the ultrasonic fluid measurement device according to the first to third embodiments described above. Similar effects can be obtained. Furthermore, in the multilayer flow path member 60, since the filter member 63a is provided in the bending part 63 which is a part of the partition plate 62, it is not necessary to separately provide the filter 34 as described above. In addition, since the inner surface of the filter member 63a is flush with the inner surface of the support portion 64, the fluid flow can be maintained smoothly.
In the partition member 61 described above, the partition plate 62 and the support portion 64 are formed as separate bodies. However, the partition plate 62 and the support portion 64 can be integrally formed by insert molding.

(Fifth embodiment)
Next, the multilayer flow path member of the ultrasonic fluid measurement apparatus according to the fifth embodiment of the present invention will be described with reference to the drawings. In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common in the multilayer flow-path member concerning 1st-4th embodiment mentioned above, and the overlapping description is abbreviate | omitted.
FIG. 12A is a perspective view of a partition member constituting the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the fifth embodiment of the present invention, and FIG. 12B is a front view of the multilayer flow path member. .

  As shown in FIG. 12A, the partition member 71 constituting the multilayer flow path member 70 of the ultrasonic fluid measurement device according to the fifth embodiment of the present invention has a partition plate 72 and a support portion 73. The support portion 73 is formed by bending both edge portions of the partition plate 72.

  As shown in FIG. 12A, the partition plate 72 is a rectangular plate-like member, and the left and right sides are bent up at right angles to form a support portion 73. An upper end portion of the support portion 73 is bent inward to form a placement portion 73a, and the partition members 71 are easily stacked. Furthermore, positioning protrusions 73b are provided at both front and rear end portions of the support portion 73 so as to protrude straight upward without providing the placement portions 73a, and the positioning protrusions 73b are provided below the positioning protrusions 73b in the support portion 73. A positioning fitting hole 73c to be fitted is formed. A filter member 34b that transmits ultrasonic waves is provided at a predetermined position of the support portion 73.

  Accordingly, as shown in FIG. 12B, in order to form the multilayer flow path member 70, first, the left and right sides of the partition plate 72 are bent up to form the support portion 73. At this time, the placement portion 73a is provided at the upper end of the support portion 73, and the positioning projections 73b and the positioning fitting holes 73c are provided to form a plurality of partition members 71. Then, the multilayer channel member 70 is formed by stacking the support portions 73 of the partition member 71 in the vertical direction. At this time, the positioning projection 73b of the lower partitioning member 71 is fitted into the positioning fitting hole 73c of the partitioning member 71 placed on the upper side to perform positioning reliably.

  As shown in FIG. 12B, in this multilayer flow path member 70, in order to match the height of the flow path of the uppermost stage 71a with the height of the flow path 71b of the other central part, It is necessary to provide a partition member (71a) having a support portion 73e that does not have the positioning protrusion 73b.

  As described above, the multilayer flow path member 70 of the ultrasonic fluid measurement device according to the fifth embodiment of the present invention described above also includes the multilayer flow path member of the ultrasonic fluid measurement device according to the first to fourth embodiments described above. Similar effects can be obtained. Further, in the multilayer flow path member 70, the filter member 34b is provided on the support portion 73 which is a part of the partition plate 72, and therefore it is not necessary to separately provide the filter 34 as described above. Further, since the inner surface of the filter member 34b is flush with the inner surface of the support portion 73, the fluid flow can be smoothly maintained.

(Sixth embodiment)
Next, the multilayer flow path member of the ultrasonic fluid measurement apparatus according to the sixth embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part which is common in the multilayer flow-path member concerning 1st-5th embodiment mentioned above, and the overlapping description is abbreviate | omitted.
FIG. 13A is a perspective view of a partition member constituting the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the sixth embodiment of the present invention, and FIG. 13B is a front view of the multilayer flow path member. .

  As shown in FIG. 13A, there are a plurality of (two in FIG. 13A) partition members 81 constituting the multilayer flow path member 80 of the ultrasonic fluid measuring apparatus according to the sixth embodiment of the present invention. The partition plates 82a and 82b and the wall 83 connecting the partition plates 82a and 82b are integrally molded to form a flat rectangular tube.

  As shown in FIG. 13A, each of the partition plates 82a and 82b is a rectangular plate member, and both left and right edges are connected to each other by a left and right wall portion 83 and 83 at a predetermined interval. A partition member 81 is formed. Further, at both front and rear ends of the wall portion 83, there are provided positioning projections 83a that extend upward and project upward, and the positioning projection 83a is provided below the positioning projection 83a in the wall portion 83. A positioning fitting hole 83b to be fitted is formed. A filter member 83c that transmits ultrasonic waves is provided at a predetermined position of the wall 83. The positioning protrusion 83a can be provided by integral molding, but it can also be formed by cutting up a part of the partition plate 82a after integral molding.

  Therefore, as shown in FIG. 13B, in order to form the multilayer flow path member 80, first, a rectangular section having a flat flow path 14b inside by the partition plates 82a and 82b and the walls 83 and 83. A plurality of members 81 are formed by integral molding. Then, the partition member 81 is stacked in the vertical direction to form the multilayer flow path member 80. At this time, the positioning projection 83a of the lower partitioning member 81 is fitted into the positioning fitting hole 83b of the partitioning member 81 placed on the upper side to perform positioning reliably.

  As described above, the multilayer flow path member 80 of the ultrasonic fluid measurement device according to the sixth embodiment of the present invention described above also includes the multilayer flow path member of the ultrasonic fluid measurement device according to the first to fifth embodiments described above. Similar effects can be obtained. Furthermore, in the multilayer flow path member 80, since the filter member 83c is provided on the wall 83, it is not necessary to separately provide the filter 34 as described above. Moreover, since each partition member 81 has the rectangular flat flow path 14b, the flat flow path 14b is formed in the uppermost stage and the lowermost stage similarly to the middle part.

(Seventh embodiment)
Next, the multilayer flow path member of the ultrasonic fluid measurement apparatus according to the seventh embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part which is common in the multilayer flow-path member concerning 1st-6th embodiment mentioned above, and the overlapping description is abbreviate | omitted.
FIG. 14A is a perspective view of a partition member constituting the multilayer flow path member of the ultrasonic fluid measurement device according to the seventh embodiment of the present invention, and FIG. 14B shows a modification of the multilayer flow path member. It is a front view.

  As shown in FIG. 14 (A), there are a plurality (two in FIG. 14 (A)) of partition members 91 that constitute the multilayer flow path member of the ultrasonic fluid measuring apparatus according to the seventh embodiment of the present invention. The partition plates 92a and 92b and the wall portion 93 connecting the partition plates 92a and 92b are integrally molded to form a substantially U shape.

  As shown in FIG. 14 (A), each partition plate 92a, 92b is a rectangular plate-like member, and either one of the left and right edges is connected by a wall portion 93 at a predetermined interval. A member 91 is formed. Further, at both front and rear end portions of the wall portion 93, there are provided positioning projections 93a that project the wall portion 93 upward and project upward, and at positions below the positioning projections 93a on the lower partition plate 92b, A positioning fitting hole 93b into which the positioning protrusion 93a is fitted is formed. Further, a filter member 93 c that transmits ultrasonic waves is provided at a predetermined position of the wall portion 93.

  Therefore, in order to form a multi-layer flow path member, first, a plurality of partition members 91 having a U-shaped cross section having a flat flow path 14b are formed integrally by partition plates 92a and 92b and a wall 93. deep. And the division member 91 is laminated | stacked on an up-down direction, and a multilayer flow-path member is formed. At this time, the positioning projection 93a of the lower partitioning member 91 is fitted into the positioning fitting hole 93b of the partitioning member 91 placed on the upper side to perform positioning reliably.

  The multilayer flow path member of the ultrasonic fluid measurement apparatus according to the seventh embodiment of the present invention described above is the same as the multilayer flow path member of the ultrasonic fluid measurement apparatus according to the first to sixth embodiments described above. The effect of can be obtained. Further, in the multilayer flow path member, the filter member 93c is provided on the wall portion 93, so that it is not necessary to separately provide the filter 34 as described above. Moreover, since each partition member 91 has the rectangular flat flow path 14b, the flat flow path 14b is formed in the uppermost stage and the lowermost stage similarly to the middle part.

  In the partition member 91B shown in FIG. 14B, three partition plates 92a, 92b, and 92c are connected in an S shape by a wall portion 93. In this case, the same operation and effect can be obtained because it is equivalent to the two partition members 91 connected in FIG. The positioning protrusion 93a is provided on the uppermost partition plate 92a, and the positioning fitting hole 93b is provided on the lowermost partition plate 92c.

In addition, the multilayer flow path member of the ultrasonic fluid measuring device of the present invention is not limited to the above-described embodiments, and appropriate modifications and improvements can be made.
For example, as shown in FIGS. 15 and 16, a partition plate 36 may be provided to further partition the upstream and downstream flat channels 14 b to form a square channel. The partition plate 36 and the partition plate 32 are provided with notches 36a and 32b having the same length, respectively, into which the other party can be inserted. Further, the partition plate 36 is formed in such a size as not to interfere with the ultrasonic path when attached to the partition plate 32. FIG. 15 shows the case of the first embodiment as an example, and FIG. 16 shows the case of the second embodiment as an example, but the present invention can be similarly applied to other embodiments.

  Moreover, as shown to FIG. 17 (A)-(C), the shape of a support part can be changed. That is, the support portion 33 shown in FIG. 17A is vertically divided into two portions to form an upper support portion 33U and a lower support portion 33L, and the partition plate 32 is sandwiched between the upper support portion 33U and the lower support portion 33L. can do. The upper support portion 33U and the lower support portion 33L can be joined by ultrasonic welding or an adhesive.

  In addition, in the support portion 33 shown in FIG. 17B, a convex portion 33g is provided on the upper surface of the support portion 33, and a concave portion 33h in which the convex portion 33g is fitted is provided on the lower surface of the support portion 33. Thereby, positioning of the upper and lower support parts 33 to be stacked can be performed reliably. In addition, the convex part 33g and the concave part 33h may be provided in a dot shape, or may be provided long along the support part 33.

  In the support portion 33 shown in FIG. 17C, when the upper and lower support portions 33 are combined, a space 33j is formed inside. By providing the space 33j as described above, it is possible to effectively weld at the time of ultrasonic welding.

Furthermore, the present invention includes a partition member 131 shown in FIG.
In the partition member 131 described below, the same parts as those of the partition member 31 of the first embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.
The partition member 131 shown in FIG. 18A is provided with a tapered connection pin 133d provided in the support portion 133 (133a, 133b) and a connection hole 133f into which the connection pin 133d is inserted.

  The connection pin 133d has a substantially conical shape that tapers toward the tip, and is arranged so that its axis is along the extension of the axis of the connection hole 133f. Further, the height dimension of the connection pin 133d is set to be slightly smaller than the depth dimension of the connection hole 133f, and the diameter dimension of the large diameter portion at the base end of the connection pin 133d is larger than the opening diameter dimension of the connection hole 133f. It is set slightly smaller.

As shown in FIG. 18B, when such a partition member 131 is stacked with another partition member 131, the connection pin 133d is inserted into the connection hole 133f of the other partition member 131 above,
The connection pin 133d of the other partition member 131 below is inserted into the connection hole 133f, so that the partition members 131 can be fixed in a stacked state without using the connecting pin exemplified in the first embodiment.
At this time, since the connection pin 133d and the connection hole 133f are set to the dimensions described above, the top of the connection pin 133d and the bottom of the connection hole 133f do not come into contact with each other, and a gap S is generated therebetween. For this reason, the tapered surface of the connection pin 133d is inserted into the opening edge portion of the connection hole 133f in a line contact state, and there is no possibility that the partition members 131 are loose.

According to the partition member 131 as described above, since the connection pin 133d and the connection hole 133f are provided in the support portion, a connection pin for fixing the other partition member 131 in a stacked state is not necessary, and manufacturing is performed. Cost can be reduced.
In addition, since the partition member 131 has a tapered shape in which the connection pin 133d has a tapered surface, no play occurs in a state where the partition member 131 is laminated with another partition member 131.

The present invention includes partition members 231 and 331 shown in FIG.
That is, the partition member 231 shown in FIG. 19A is provided with a substantially cylindrical connection pin 233d and a connection hole 233f that tapers in the depth direction.
Further, the partition member 331 shown in FIG. 19B is provided with a substantially conical connection pin 333d that tapers toward the tip, and a connection hole 333f that tapers toward the depth.
Similar effects can be obtained with these partition members 231 and 331.

  As described above, the multilayer flow path member of the ultrasonic fluid measurement device according to the present invention is provided with the partition plate that divides the rectangular tubular measurement flow channel formed in the ultrasonic fluid measurement device into flat flow channels. At this time, since the partition member that supports the edge of the partition plate and has a height in the thickness direction of the partition plate is disposed, the partition plate can be held at a predetermined interval. Moreover, since the space | interval of a partition plate is determined by the height of a partition member, the space | interval of a partition plate can be adjusted and the height of a flat flow path can be adjusted. For this reason, it is rich in versatility and has the effect of being able to reduce costs, and is arranged in a rectangular tube-shaped measurement channel formed in the ultrasonic fluid measurement device. It is useful as a multilayer flow path member or the like of an ultrasonic fluid measuring device having a partition plate partitioned into flat flow paths.

1 is an exploded perspective view showing an ultrasonic fluid measuring device that can use the multilayer flow path member of the ultrasonic fluid measuring device according to the first embodiment of the present invention. The disassembled perspective view of the division member which comprises the multilayer flow-path member of the ultrasonic fluid measuring device concerning 1st Embodiment of this invention. The perspective view which shows the state which laminates a partition member and forms a multilayer flow path member Front view of multilayer channel member The disassembled perspective view of the division member which comprises the multilayer flow-path member of the ultrasonic fluid measuring device concerning 2nd Embodiment of this invention. The perspective view which shows the state which laminates a partition member and forms a multilayer flow path member Front view of multilayer channel member (A) is a perspective view of the partition member which comprises the multilayer flow-path member of the ultrasonic fluid measuring device concerning 2nd Embodiment of this invention, (B) is an exploded perspective view similarly. Front view of multilayer channel member (A) is a perspective view of the partition member which comprises the multilayer flow-path member of the ultrasonic fluid measuring device concerning 2nd Embodiment of this invention, (B) is an exploded perspective view similarly. Front view of multilayer channel member (A) is a perspective view of the partition member which comprises the multilayer flow-path member of the ultrasonic fluid measuring device concerning 5th Embodiment of this invention, (B) is a front view of a multilayer flow-path member. (A) is a perspective view of the partition member which comprises the multilayer flow-path member of the ultrasonic fluid measuring device concerning 6th Embodiment of this invention, (B) is a front view of a multilayer flow-path member. (A) is a perspective view of the partition member which comprises the multilayer flow-path member of the ultrasonic fluid measuring device concerning 7th Embodiment of this invention, (B) is a front view which shows the modification of a multilayer flow-path member. The perspective view which shows the flow path which divided the flat flow path further and was formed in the square The perspective view which shows the notch of the partition plate for further dividing a flat flow path and forming a square flow path (A)-(C) is sectional drawing which shows the modification of the cross-sectional shape of a support part. The perspective view and principal part sectional drawing which show the modification of this invention (A)-(B) are principal part sectional drawings which show the modification of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Ultrasonic fluid measuring device 14a Measurement flow path 14b Flat flow path 30, 40, 50, 60, 70, 80 Multi-layer flow path member 31, 41, 51, 61, 71, 81, 91, 131, 231, 331 Section Member 32, 42, 52, 62, 72, 82a, 82b, 92a, 92b Partition plate 33, 43, 53, 64, 73, 133a, 133b Support part 35 Connecting pin 53, 63 Bent part 34b Filter member 83, 93 Wall

Claims (12)

A multilayer flow path member of an ultrasonic fluid measurement apparatus having a partition plate arranged in a rectangular tube-shaped measurement flow path formed in an ultrasonic fluid measurement apparatus and dividing the measurement flow path into a plurality of flat flow paths. There,
A partition member that supports an edge portion in the fluid flow direction in the partition plate and includes a support portion that rises in the thickness direction of the partition plate,
A notch for transmitting ultrasonic waves is formed in a part of the support part,
A multilayer flow path member of an ultrasonic fluid measuring device, wherein the multilayer fluid member is formed by laminating a plurality of the partition members.   The multilayer flow path member for an ultrasonic fluid measuring device according to claim 1, wherein the partition member includes the partition plate and a prismatic support portion that sandwiches the partition plate in a thickness direction.   The multilayer flow path member for an ultrasonic fluid measuring device according to claim 1, wherein the partition member includes the partition plate and a prismatic support portion attached to one surface of the partition plate.   The partition member includes the partition plate, a bent portion provided in the entire region of both edges of the partition plate, a filter member that is provided at a predetermined position of each bent portion and transmits ultrasonic waves, and the partition The multilayer flow path member for an ultrasonic fluid measuring device according to claim 1, further comprising a prismatic support portion that is attached to one side of the plate and extends along the bent portion. The partition member is the partition plate, a bent portion provided at a predetermined position of both edges of the partition plate, a filter member provided at each bent portion and transmitting ultrasonic waves, and the partition plate And a prismatic support portion along the bent portion and attached to one side of
The multilayer flow path member for an ultrasonic fluid measuring device according to claim 1, wherein an inner surface of the bent portion and an inner surface of the support portion are along the same plane.   The multilayer flow path member for an ultrasonic fluid measuring device according to claim 1, wherein the support portion is formed by bending both edge portions of the partition plate.   The super partition according to claim 1, wherein the partition member is formed into a flat rectangular tube by integrally molding a plurality of the partition plates and a wall portion connecting the partition plates. Multi-layer flow path member of sonic fluid measuring device.   The super partition according to claim 1, wherein the partition member is formed in a substantially U-shape by integrally molding the plurality of partition plates and a wall portion connecting the partition plates. Multi-layer flow path member of sonic fluid measuring device.   The multilayer flow path member of an ultrasonic fluid measuring device according to claim 1, wherein the partition member is integrated by a connecting pin that penetrates the support portion all at once.   The multilayer flow path member for an ultrasonic fluid measuring device according to claim 1, wherein a water repellent treatment is applied to a filter member provided on the support portion and transmitting ultrasonic waves.   The multilayer flow of the ultrasonic fluid measuring device according to claim 1, wherein the partition member is integrated by a connection pin provided in the support portion and a connection hole into which the connection pin is inserted. Road member.   The multilayer flow path member of the ultrasonic fluid measuring device according to claim 11, wherein at least one of the connection pin and the connection hole has a tapered shape.

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