JPH0441931Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a fluid separation device that uses a permeable thin film to separate specific components from a raw material fluid by utilizing the permeability of the components in the raw material fluid. It is related to connectors.

[Prior Art] Various devices have been proposed in the past that use permeable thin film-like materials and utilize the principle of osmosis or ultrafiltration to perform treatments such as separation and concentration of specific components from a fluid mixture.

In the present invention, the permeable thin film-like material refers to a bag or hollow fiber formed of a thin film.

2 to 4 are cross-sectional views showing an example of the configuration of a conventional fluid separation device, and this separation device has a cylindrical separation device container 10 consisting of a cylindrical container body 12 and a lid 20. are doing. The container body 12 has a sealed shape at one end, and a raw material fluid outlet 14 is provided at one end, and a raw material fluid inlet 16 is provided at the other end of the container body 12.
The lid 20 is attached to the container body 12 and has a separation fluid outlet 18 .

In the figure, 22 is a partition wall that partitions the inside of the cylindrical container 10 into a raw material fluid passage chamber 24 and a separation fluid chamber 26, in which one end side of a permeable thin film-like material (hollow fiber in this example) 28 is embedded and fixed. ing. Note that the hollow fiber 28 is connected to the partition wall 22 so as to communicate with the separation fluid chamber 26.
The other end of the hollow fiber 28 is embedded and sealed in a synthetic resin plate 29.

In the conventional apparatus shown in FIGS. 2 to 4, the raw material fluid A (for example, a mixed gas of hydrogen and methane)
A specific component (hydrogen in this example) contained therein permeates into the interior of the hollow fiber 28, enters the separation fluid chamber 26, and is taken out from the outlet 18. Components that do not pass through the hollow fibers (methane in this example) are discharged from the container through the discharge port 14.

By the way, in such a fluid separation device, in order to increase the amount of fluid separated and the separation efficiency,
Increase the pressure of raw material fluid A to, for example, 150 kg/cm ² ,
In addition, the operation may be performed at a relatively high temperature such as 150°C, and in this case, the seal of the container, especially the partition wall 22 and the inner wall surface of the container (in the conventional example, the inner surface of the container body or the lower end surface of the lid 20) It is important to ensure a secure seal between the

Conventionally, in order to securely seal the partition wall 22 with the inner wall surface of the container, the partition wall is provided with a tapered surface that becomes narrower toward the separation fluid chamber side, and the tapered surface of the partition wall is also provided on the inner wall surface of the container. A structure has been proposed in which a tapered surface that engages with the surface is provided, a seal is achieved by the engagement of both tapered surfaces, and an elastic ring is sandwiched between both tapered surfaces to improve the sealing characteristics ( Jitsukai 48-87338). In addition, a corner part is provided on the separation fluid chamber side of the partition wall, a packing is attached to this corner part, and a seal is formed between the partition wall and the member forming the separation fluid chamber, either directly or through the packing, and the partition wall is A seal structure has also been proposed in which a tightening plate is provided on the side of the raw material fluid passage chamber, and the partition wall is pressed by this tightening plate (Utility Model Opening in 1973).
95235).

[Problems to be solved by the invention] However, in the conventional seal structure,
When the temperature of the partition increases or decreases as the device operates, there is a risk that the seal may become incomplete due to the difference in thermal expansion between the partition and the inner wall surface of the container.

That is, the partition wall is generally made of synthetic resin such as epoxy resin that can be cast by pouring, since it holds the permeable thin film in an embedded state.
The container itself is made of metal, such as carbon steel, to withstand high pressure fluids. Since there is a difference in thermal expansion between the synthetic resin partition wall and the metal container, the sealing performance becomes incomplete when the partition wall temperature rises or falls.

[Means for Solving the Problems] The purpose of the present invention is to solve the above-mentioned problems of the prior art, and to ensure that the seal between the partition wall and the inner wall surface of the container is always maintained sufficiently even when the partition wall temperature rises and falls. An object of the present invention is to provide a fluid separation device.

In the fluid separation device coupling body of the present invention, the interior of the cylindrical separation device container is separated into a raw material fluid passage chamber and a separated liquid chamber by a partition wall provided intersecting the axial direction of the cylinder. , a permeable thin film-like material is embedded and fixed in the partition wall so that its hollow part communicates with the separation fluid chamber, and the partition wall includes a central member made of synthetic resin in which the permeable thin film-like material is embedded; It consists of a metal annular member that surrounds the center member and is bonded to the center member with an adhesive, and the edge of the synthetic resin center member is connected to a protrusion provided on the inner periphery of the annular member. and a washer-like member fixed to an annular member, and a sealing member is disposed between the annular member and the inner wall surface of the container, the connected body of the fluid separation device comprising: the cylindrical member; An inlet and an outlet for the raw material fluid are provided at positions facing each other in the diametrical direction on one end side of the raw material fluid passing chamber among the side surfaces of the separator container, A passage is provided that communicates the other end of the raw material fluid passage chamber with the inlet or outlet, and the inlet of the plurality of separation devices is directly connected to the outlet of the adjacent separation device via a packing. A connection body of a fluid separation device consisting of:

[Function] According to the present invention, since the metal members are made of the same or almost the same number of metal materials, good sealing performance is maintained even when the temperature rises and falls.

According to the present invention, the central member is very firmly fixed to the annular member.

In the coupling body of the present invention, discharged fluid introduced into one separation device is separated again by an adjacent separation device.

In the present invention, the raw material fluid introduced into the raw material fluid passage chamber flows from one end of the raw material fluid passage chamber to the other end before reaching the discharge port. There is no short circuit and the separation efficiency is good.

[Examples] The present invention will be described in more detail below with reference to embodiments shown in the drawings.

FIG. 1 is an enlarged sectional view showing an engaging portion between a partition wall of a fluid separation device used in a connector according to an embodiment of the present invention and an inner wall surface of a container.

In FIG. 1, 12 and 20 are the container body and the lid, respectively, as described above, and 22 is a partition wall.
Both the container body 12 and the lid 20 are made of metal, such as carbon steel. The partition wall 22 includes a central member 22 made of synthetic resin, such as epoxy resin, in which hollow fibers 28 made of polyimide resin and having a diameter of 200 to 500 μm are embedded and fixed.
a, and a metal annular member 22b made of carbon steel, for example, which is provided so as to surround the central member 22a. Note that the hollow fibers 28 are connected to the central member 2 so as to communicate with the separation fluid chamber 26 as described above.
It is buried so as to reach the upper end surface of 2a.

The upper edge of this central member 22a made of synthetic resin has a stepped portion 3 cut out with an L-shaped cross section.
0 is formed, while a metal annular member 2
A protrusion 32 having a shape that engages with this step 30 is provided on the upper end side of the inner peripheral surface of the center member 2b.
a and the annular member 22b are fitted together so that the stepped portion 30 and the protruding portion 32 engage with each other, and are bonded together with an adhesive. As the adhesive, for example, Loctite (registered trademark, manufactured by Nippon Loctite Co., Ltd.) is used.

Further, a washer-like member 3 is provided on the lower side of the annular member 22b.
4 is attached to the annular member 22b by a bolt 36. A cushion material 38 is provided between the washer-like member 34 and the annular member 22b, and
A cushion material 40 is inserted between the washer-like member 34 and the center member 22a, and by tightening the bolt 36, the protrusion 32 of the annular member is inserted.
The peripheral edge of the center member 22a is sandwiched between the washer-like member 34 and the center member 22a, and the connection between the center member 22a and the annular member 22b is completed.

Grooves 42 and 44 are provided around the inner circumferential surface of the container body 12 in a portion facing the partition wall 22, and O-rings 46 and 48 are fitted into the grooves 42 and 44, so that the container body Inner peripheral surface and annular member 22b
This provides a seal between the outer circumferential surface of the In the figure,
Reference numeral 50 denotes a seal ring for sealing between the lid 20 and the container body 12, but this seal ring may be provided on the mating surface of the annular member 22b and the lid 20. Further, 52 indicates a bolt for connecting the lid body 20 and the container body 12.

In the fluid separation device configured in this manner, since the outer peripheral part of the partition wall 22 is made of metal, there is no or very small difference in thermal expansion between the partition wall 22 and the container body 12 even when the temperature rises and falls. The seal with the inner peripheral surface of the main body 12 becomes perfect.

FIG. 5 is an enlarged sectional view showing a partition wall seal structure of a fluid separation device used in a connecting body according to a different embodiment of the present invention.

In FIG. 5, reference numeral 22e denotes a central member in which the hollow fiber 28 is embedded, and the upper side of the peripheral edge thereof is cut out in the circumferential direction to form a stepped portion 72. 22f
is a metal annular member adhered to this central member 22e. This annular member 22f has a cylindrical shape as shown in the figure, and one end thereof has a slightly enlarged diameter portion 74.
A stepped portion 76 with which the stepped portion 72 engages is formed on the inner peripheral side of the enlarged diameter portion 74.

Further, a washer-like member 77 is installed coaxially with the annular member 22f on the lower surface side of the enlarged diameter portion 74, and is attached to the enlarged diameter portion 74 with a bolt 78.
A cushion material 80 is interposed between the washer-like member 76 and the center member 22e. By tightening this bolt 78, the center member 22
The peripheral edge portion of e is sandwiched between the washer-like member 77 and the stepped portion of the enlarged diameter portion 74 to be firmly joined.

A male thread 82 is formed on the outer circumferential surface of the upper end of the annular member 22f, and a ring 84 is formed on the inner circumferential surface with a female thread that engages with the male thread 82.
is installed. A screw hole 86 is fitted into the ring 84 in the axial direction of the annular member 22f, and a bolt 88 is screwed into the screw hole 86. Further, a cylindrical member 90 is inserted into the gap between the narrow diameter portion 75 of the annular member 22f and the upper end of the container body 12, and the lower surface of the cylindrical member 90 and the container body 12
A sealing gasket 92 is arranged in a portion surrounded by the inner peripheral surface and the annular member 22f. The lower end surface of the screw 88 is in contact with the upper surface of the cylindrical member 90, and by turning the ring 84 in the circumferential direction of the annular member 22f and screwing in the screw 88, the cylindrical member 90 is pressed downward in the figure. The seal 92 is pressed to seal between the annular member 22f and the inner peripheral surface of the container body 12. Note that by attaching a lid to the upper part of the container body 12, a separation fluid chamber is formed between the container body 12 and the partition wall 22.

The fluid separation device connected body of the present invention is a block formed by connecting a large number of the above-mentioned separation devices.

Figures 6 and 7 show an example.
6 is a perspective view, and FIG. 7 is a cross-sectional view taken along the line -X in FIG. 6.

This blocked separation device is separated by separation device 9.
4 (Hereinafter, this may be referred to as a unit separation device.)
Five of them are connected in series to form one system.
The sectional view in FIG. 7 shows this one system.

In FIG. 7, 95 is a separation device container;
It consists of a container body 95c and a lid 95v that is placed on the container body 95c. The container body 95c includes a cylindrical portion 95a and a flange portion 95b. As shown in FIG. 6, this flange portion 95b extends in a direction intersecting each system (direction perpendicular to the plane of paper in FIG. 7), and the flange portions of each system are integrated.

In FIG. 7, reference numeral 22 denotes the aforementioned partition wall, which consists of a central member in which the hollow fibers 28 are embedded and fixed, and a metal annular member bonded with adhesive to the periphery of the central member. Raw material fluid passage chamber 2
4 and a separate fluid chamber 26. Although not shown, this partition wall 22 has exactly the same configuration as that in FIG. It has a structure in which it is held between 36.

Reference numerals 95d and 95e are an inlet and an outlet for the raw material fluid, respectively, and as shown in the figure, they are provided at the same level and axially symmetrical position of the container body 95c. The outlet and the inlet are directly connected. 95r is an O-ring that seals the inlet and outlet.

The raw material fluid inserted into the unit separation device 94 from the inlet 95d flows overflow onto a shelf with an L-shaped cross section that is provided around the upper part of the raw material fluid passing chamber 24 (excluding the discharge port 95e). The raw material fluid is divided evenly in the inner peripheral direction of the raw material fluid passage chamber 24 by the flow plate 95f, and flows over the overflow plate 95f to flow into the hollow fiber 28.
is introduced into the bundle part of.

Then, the raw material fluid flows down between the hollow bodies 28,
A separation process is performed. The fluid that has permeated into the hollow fibers 28 is introduced into the separation fluid chamber 26, and the fluid that has penetrated into the hollow fiber 28 is introduced into the separation fluid chamber 26,
8 and is extracted from the device.

The fluid that has not penetrated into the hollow fibers 28 flows into the chamber 95h below the adhesive resin plate 29, and then ascends the conduit 95i vertically along the inner wall surface of the cylindrical portion 95a of the container body to reach the discharge port. Guided by 95e,
It is introduced into another adjacent unit separation device 94. This series of processes is repeated, and the waste is sequentially sent to the adjacent unit separation device 94, and is discharged outside the device from the discharge port 95e of the leftmost unit separation device 94 in FIG.

In the fluid separation device formed into blocks as described above, the raw material fluid inlet 95d and the raw material fluid outlet 95e of each unit separation device 94 are directly connected, so that only a small amount of installation space is required. Moreover, after the raw material fluid flows in the raw material fluid passage chamber 24 from the upper end side to the lower end side in the figure, it flows to the discharge port 95e via the conduit 95i. Therefore, the raw material fluid does not short-circuit from the inlet 95d to the outlet 95e in the raw material fluid passage chamber 24, and the amount of separation in each unit separation device 94 is large, resulting in high separation efficiency.
In addition, the unit separation device 9 can be used without using high pressure piping.
Since 4 comrades are connected, no piping work is required.
It is easy to disassemble and repair, and there is almost no gas leakage, making maintenance management easy. Especially the 6th
In the embodiments shown in Figs. and 7, multiple systems in which multiple unit separators are directly connected are installed in parallel, so the number of unit separators that can be installed per unit area is extremely large, making it extremely compact. The separation amount and separation efficiency are extremely excellent.

Furthermore, by forming the container into blocks, each block can be freely combined, and each block can be replaced. For example, if the ability of the first block among several blocks decreases, remove the last block, move the first block to the position of the second block, and return to the position of the first block. It is also possible to use each block effectively by bringing in a new block.

In the embodiments shown in FIGS. 6 and 7, the conduit 95i
Although it is provided along the inner wall surface of the container body 95c, it may be provided with a slight gap between it and the inner wall surface of the container, or may be provided along the outer wall surface of the container.

In addition, in the embodiment apparatus shown in FIGS. 6 and 7, the raw material fluid introduced from the inlet 95d flows down between the hollow fibers 28, and then ascends in the conduit 95i and is guided to the outlet 95e. Alternatively, the introduced raw material fluid may be first guided to the bottom of the fluid passage chamber 24 using a conduit, and then moved up between the hollow fibers 28 to perform a separation process and reach the discharge 95e.

Furthermore, in the embodiment apparatus shown in FIGS. 6 and 7,
Although the raw material fluid inlet 95d and outlet 95e are provided in the upper part of the separation container 95, they may be provided in the lower part. Furthermore, Figures 6 and 7
Instead of providing multiple systems in parallel as shown in the figure, only one system may be provided.

[Effects of the invention] As described above, in the fluid separation device of the present invention, since the member constituting the sealing surface is made of metal, there is no or very small difference in thermal expansion due to temperature rises and falls, and the fluid separation device according to the present invention Good sealing is also achieved. Moreover, it is therefore possible to freely change the operating temperature of the apparatus, and the separation amount and separation efficiency can be improved.

In the present invention, the connection strength between the central member and the annular member is high. In the present invention, since multiple separation devices are connected, less installation space is required, and the amount of separation is large, resulting in high separation efficiency. In addition, since the unit separators are connected without using high-pressure piping, there is no need for piping work, and disassembly and repair are easy.
There are almost no gas leaks and maintenance is easy.

In the present invention, in order to directly connect adjacent unit separators, the inlet and outlet of the raw material fluid passage chamber of each unit separator are diametrically opposed to each other. is provided to ensure that the raw material fluid flows from one end to the other end within the raw material fluid passage chamber. Therefore, there is no short circuit of the raw material fluid in the raw material fluid passage chamber, and the separation efficiency is extremely high.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a main part of a fluid separation device used in a coupling body according to an embodiment of the present invention, Fig. 2 is a sectional view of a conventional fluid separation device, and Fig. 3 is an enlarged view of the part of Fig. 2. 4 is an enlarged perspective view of the part shown in FIG. 2, FIG. 5 is a cross-sectional view of a main part of a fluid separation device used in a connecting body according to another embodiment, and FIG. 6 is a connecting body according to an embodiment. FIG. 7 is a sectional view taken along the line X--X in FIG. 6. 12,95...container body, 20,95v...lid, 22...partition wall, 24...raw material fluid passage chamber, 2
6...Separation fluid chamber, 28...Hollow fiber, 22a, 2
2c... Central member, 22b, 22f... Annular member, 94... Unit separation device, 95d... Raw material fluid inlet, 95e... Raw material fluid outlet, 95i...
conduit.

Claims (1)

[Claims for Utility Model Registration] The inside of a cylindrical separation device container is separated into a raw material fluid passage chamber and a separation fluid chamber by a partition wall provided to intersect with the axial direction of the cylinder. A permeable thin film-like material is buried and fixed in such a way that its hollow part communicates with the separation fluid chamber, and the partition wall includes a central member made of synthetic resin in which the permeable thin film-like material is embedded, and a central member of this central member. It consists of a metal annular member that surrounds the periphery and is bonded to the center member with adhesive, and the edge of the synthetic resin center member has a protrusion provided on the inner periphery of the annular member and The cylindrical separation device container is sandwiched by a fixed washer-like member, and a sealing member is disposed between the annular member and the inner wall surface of the container. An inlet and an outlet for the raw material fluid are provided at positions facing each other in the diametrical direction on one end side of the raw material fluid passage chamber in the side surface of the raw material fluid passage chamber. A passage is provided that communicates the other end side with the inlet or the outlet, and the inlet of the plurality of separators is directly connected to the outlet of the adjacent separator via a packing. Connection of separation equipment.