CN111237217B - Fluid centrifugal through-flow action structure - Google Patents

Abstract

The fluid centrifugal cross-flow action structure provided by the present invention includes: a flow guide structure, a fluid inlet structure and a driving support structure; the flow guide structure is a straight cylinder structure surrounded by several guide bars; the fluid inlet structure is adapted to the centrifugal impeller The fluid input structure is arranged at the fluid inlet end of the straight-tube structure, which constitutes the fluid inlet of the fluid centrifugal through-flow structure; the fluid outlet end of the straight-tube structure constitutes the fluid outlet of the fluid centrifugal through-flow structure; the inner side of the guide strip The installation space of the centrifugal impeller is formed in the enclosure space of the suspension end; the driving support structure is set on the basis of the suspension end located on the inner side of the guide strip behind the centrifugal impeller. The centrifugal impeller of the invention is driven to rotate, and the fluid input from the fluid inlet is made to flow laterally to the guide surface of the flow guide structure body through the action of the centrifugal impeller, and then the flow guide surface of the flow guide structure body guides the flow, so that the fluid flows to the turning straight cylinder The outlet of the structure flows out, which can significantly reduce the loss of fluid transmission and improve the efficiency.

Description

A kind of fluid centrifugal through-flow action structure

technical field

The invention relates to fluid action technology, in particular to a fluid centrifugal through-flow action structure.

Background technique

The flow of fluid (including air flow and liquid flow) requires the action of a fluid action device. Fluid action devices can be divided into two categories: driving air flow fluid devices and driving liquid flow fluid devices according to different working fluids. There are many practical application types of the driving air flow fluid device and the driving liquid flow fluid device, but the turbine type fluid driving device is the most widely used. The turbo fluid drive device is based on the axial flow drive device and the centrifugal drive device. Taking the driving air flow fluid device as an example, the driving air flow fluid device is further divided into an air flow axial flow driving device and an air flow centrifugal driving device.

Axial flow fan is a typical air flow axial flow drive device. Its advantages include: the inlet and outlet fluids are coaxial in the same direction, so the axial flow fan is convenient to be used in series in the air duct; the exhaust port of the axial flow fan and the fluid The inlet end and the inner diameter of the air duct are generally the same size, the total wind resistance is relatively low, and the air volume is relatively large; the structure is simple, the manufacturing cost is low, and the maintenance is simple; the disadvantage is that the fluid conveying pressure is low, and the long-distance air supply is difficult, affecting and Restrict the application of axial flow fans.

Centrifugal fan is a typical air flow centrifugal driving device. Its advantages are high wind pressure, strong ability to overcome wind resistance, and long air supply distance; its disadvantages include: long average air guide path, large wind resistance, fluid movement The direction is orthogonal to the outflow direction, which is inconvenient to install and use in the air duct. In the case of the transmission air duct being a round pipe, the air duct on the exhaust side generally requires a square-circle conversion interface to achieve this, which is not conducive to the optimal design of the air duct; the fluid inlet end It is difficult to make a large diameter, because the large diameter of the fluid inlet will lead to a significant increase in the outer dimension of the fan; and the volume is too large.

From the perspective of fan output air volume and wind pressure, there is a complementary relationship between axial flow fans and centrifugal fans, so people have thought of integrating the advantages of axial flow fans and centrifugal fans to create mixed flow (also known as oblique flow) fans, circular duct fans and circular shaped centrifugal duct fan. Both the circular duct fan and the mixed flow fan work with impellers made of twisted blades with meridian acceleration characteristics. The air inlet mode includes centrifugal air inlet factors, and the outflow mode is purely axial flow mode outflow. The performance takes into account the large flow characteristics of axial flow fans. The wind pressure coefficient is higher than that of pure axial flow fans but smaller than that of pure centrifugal fans. However, the above-mentioned fans only simply combine the advantages of centrifugal fluid drive device and axial flow drive device, and there are some problems and defects. The outflow in the flow mode only relies on the semi-enclosed effect of the casing, so that the wind from the centrifugal impeller has to be passively discharged from the outflow port, resulting in a decrease in the efficiency of the fan. In addition, the diameter of the air inlet and outlet of the circular centrifugal duct fan is much smaller than the outer diameter of the casing, which makes it difficult to increase the working air volume of the fan and the radial size of the body is too large.

In the same way, the turbine-type fluid device for driving liquid flow and the fluid device for driving air flow also have the above problems. So far, there is still a lack of a fluid action device that can perfectly combine the advantages of axial flow and centrifugal fluid drives. The main reason is that the existing centrifugal turbine fluid action device cannot be effectively The unification problem of changing the flow direction of the fluid and making the direction of the fluid entering and leaving the centrifugal turbine type fluid action device realize the coaxial and the same direction.

Chinese patent CN104948502A discloses a flow guide device for a centrifugal impeller, but it has the following problems: on the one hand, its built-in guide vane needs to be additionally installed on a fixed outer ring, and then the fixed outer ring is installed on the flow guide device Inside the casing, the installation is complicated and the cost is high, and once the deflector is damaged, it is not easy to replace; the fixed installation position of the motor is inside the outer cylinder, on the one hand, this deployment method makes it impossible to deploy the motor installation occupying the outer cylinder Long enough guide vanes, on the other hand, this structure can only limit the motor inside the outer cylinder, and the deployment flexibility is poor. In addition, the entrances and exits of this invention are all constricted openings, and this structure greatly affects the wind speed that flows out.

SUMMARY OF THE INVENTION

In order to solve the problems existing in the prior art, the present invention provides a fluid centrifugal through-flow structure, including: a flow guide structure, a fluid inlet structure and a drive support structure; the flow guide structure is made of several guide bars. The fluid inlet structure is a structure suitable for the fluid input of the centrifugal impeller, and is arranged at the fluid inlet end of the straight cylinder structure to constitute the fluid inlet of the fluid centrifugal through-flow structure; the fluid outlet end of the straight cylinder structure constitutes the fluid The fluid outlet of the centrifugal cross-flow action structure; the surrounding space of the inner suspension end of the guide bar constitutes the installation space of the centrifugal impeller; the driving support structure is arranged on the inner suspension end of the guide bar and is located in the device After the space for the centrifugal impeller.

Further, the inner diameter of the fluid inlet is not larger than the diameter of the fluid inlet of the centrifugal impeller.

Further, the structure of the fluid inlet is a funnel-shaped structure.

Further, the driving support structure is configured to be embedded in a fixing device structure with the suspension end of the guide bar, and the suspension end of the guide bar is provided with an embedding device slot for the driving support structure; or is set to be integrated with the suspension end of the guide bar. The fixing structure of the structure; it is also possible to set an annular body integrated at the suspension end of the guide bar for driving the support structure to be inserted into the sleeve device, and the drive support structure is taken as an independent structure to insert the sleeve and obtain the fastening. Fastening fixtures.

Further, the drive support structure is set as a base of the device drive motor or a bearing seat for supporting the transmission shaft.

Further, a plurality of the guide strips are combined to form a straight tube structure through a tenon joint connection structure, an insert connection structure or a connection piece connection structure.

Further, a plurality of the guide strips are integrally formed to enclose a straight cylindrical structure.

Further, an outer sleeve is also included, and the straight-tube structure is arranged in the outer sleeve.

Further, the length of the outer sleeve is greater than the length of the built-in guide strip.

Further, the guide surface of the guide bar is one or more of a combined surface structure selected from a curved surface structure, a planar structure, and a folded surface structure.

Further, the fluid outflow end of the guide surface of the guide bar is configured as a variable guide structure.

Further, the diversion guide structure divides the guide surface into a front guide surface and a rear guide surface; the flow direction of the guide fluid on the rear guide surface is parallel to the axial direction of the guide structure. .

Further, the changing diversion structure divides the diversion surface into a front diversion surface and a rear diversion surface; the flow direction of diversion fluid on the rear diversion surface and the flow direction of diversion fluid on the front diversion surface are formed. Reverse angle.

Further, at least one diversion strip protruding from the diversion surface is provided on one side of the diversion surface of the diversion strip, and the diversion strip divides the diversion surface into different flow channels that can implement flow redistribution. .

Further, the driving support structure is arranged on the mounting fixture on the suspension end on the inner side of the guide bar, and the mounting fixture is integrally formed or connected and combined with the suspension end on the inner side of the guide bar. to make.

The working principle of the invention is that the centrifugal impeller is driven to rotate, and the fluid input from the fluid inlet is made to flow laterally to the guide surface of the flow guide structure through the action of the centrifugal impeller, and then the flow guide surface of the flow guide structure is guided to make the fluid flow. The flow is diverted to the outlet of the straight barrel structure. Its advantages are: on the one hand, the diversion structure is a ring-shaped structure formed by a combination of several diversion strips. When using, the diversion strips are first spliced and combined. At this time, the corresponding diversion strips can be selected according to different application scenarios. The combination is diversified, and the applicability is wider; the combined annular structure body is embedded in an independent outer sleeve, which is more convenient to install and facilitate subsequent maintenance or replacement of the guide strip. On the other hand, a drive support structure is provided in the enclosure space of the inner suspension end of the guide bar, so that subsequent driving sources can be built into or externally placed in the enclosure space of the inner suspension end of the guide bar , effectively reduce the loss of fluid transmission, improve work efficiency, support the use of fluid action devices in series, facilitate the simplification and optimal design of the fluid passage, and also facilitate the reduction of the volume of the fluid action device.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic structural diagram of Embodiment 1 of a fluid centrifugal through-flow structure provided by the present invention;

2 is a schematic structural diagram of Embodiment 2 of a fluid centrifugal through-flow structure body provided by the present invention;

3 is a schematic diagram of a flow guide structure provided by the present invention with a drive support structure set as a structure of embedding a fixing device with the suspension end of the guide bar;

4 is a schematic structural diagram of Embodiment 1 of a fluid centrifugal through-flow device provided by the present invention;

FIG. 5 is a schematic structural diagram of a combined flow guide strip in a flow guide structure using tenon joint connection;

FIG. 6 is a schematic structural diagram of the combined guide bar in the guide structure body using inserts to connect;

FIG. 7 is a schematic structural diagram of a combined guide strip connected by a connecting piece in a guide structure;

8 is a schematic structural diagram of Embodiment 1 of the straight-tube structure of the integrally formed surrounding structure of the guide strip;

9 is a schematic structural diagram of Embodiment 2 of the straight-tube structure of the integrally formed surrounding structure of the guide strip;

Fig. 10 is a schematic diagram of the diversion conditions when the diversion surface is a curved surface;

Fig. 11 is a schematic diagram of the diversion condition with the diversion surface being a plane;

Fig. 12 is a schematic diagram of the diversion conditions when the diversion surface is a folded surface;

13 is a schematic diagram of the first embodiment of the flow guide structure in which the flow outflow end of the guide surface of the guide bar is changed to a guide structure;

14 is a schematic diagram of the second embodiment of the flow guide structure in which the flow outflow end of the guide surface of the guide strip is changed to a guide structure;

15 is a schematic diagram of the structure of the guide strip with the guide surface being unequally divided flow channels;

16 is a schematic diagram of the structure of the guide strip with the guide surface in the form of an equally divided flow channel;

FIG. 17 is a schematic structural diagram of a guide bar provided with an embedded device slot;

FIG. 18 is a schematic structural diagram of a guide strip with a left-handed setting on the guide surface;

Figure 19 is a schematic structural diagram of a guide strip with a clockwise arrangement on the guide surface;

20 is a schematic structural diagram of a flow guide structure with an open structure at the suspension end on the outflow side of the guide body;

FIG. 21 is a schematic structural diagram of a flow-guiding structure body with a suspension end on the outflow side of the guide-fluid having a closed structure;

22 is a schematic structural diagram of a closed-structure epitaxial flow-guiding structure;

Figure 23 is a schematic structural diagram of a flow guiding mechanism body that drives the supporting structure and closes the outflow side suspension end;

24 is a schematic structural diagram of a fluid centrifugal through-flow structure body with an additional flow-guiding inner cylinder at the suspension end of the flow-guiding fluid outflow side;

25 is a schematic structural diagram of Embodiment 2 of a fluid centrifugal through-flow device;

FIG. 26 is a schematic structural diagram of Embodiment 3 of a fluid centrifugal through-flow device.

Reference number:

100 Centrifugal impeller 210 Diversion structure 211 Diversion strip

212 guide surface 213 flow channel 214 embedded device groove

215 Ring structure 216 Outer sleeve 217 Fluid inlet

218 fluid outlet 221 tongue and groove 222 tongue and groove

223 slot 224 blade 225 connection slot

226 connecting piece 230 guiding inner cylinder 300 fluid inlet structure

400 drive support structure 500 drive source

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Explanation of terms : In the present invention, the way in which "fluid enters in a centrifugal way and outputs in an axial flow way" is defined as "centrifugal flow".

The present invention provides a fluid centrifugal cross-flow structure. As shown in FIG. 1 or FIG. 2, the fluid centrifugal cross-flow structure includes: a flow guide structure 210, a fluid inlet structure 300 and a drive support structure 400; the flow guide structure The body 210 is taken as a straight cylinder structure surrounded by several guide strips 211; the fluid inlet structure 300 is taken as a structure adapted to the fluid input of the centrifugal impeller, and is arranged at the fluid inlet end of the straight cylinder structure to constitute the fluid inlet of the fluid centrifugal through-flow structure body. The fluid outlet end of the straight-tube structure constitutes the fluid outlet of the fluid centrifugal through-flow action structure; the surrounding space of the inner suspension end of the guide strip 211 constitutes the installation space of the centrifugal impeller; the driving support structure 400 is arranged on the guide strip 211 on the inside of the suspended end and behind the space for the centrifugal impeller of the device.

It should be noted that, the fluid inlet structure 300 and the flow guide structure 210 may be integrally formed or connected and combined according to different manufacturing processes.

Further, in order to adapt to the structure of the centrifugal impeller fluid input, the inner diameter of the fluid inlet is not larger than the diameter of the centrifugal impeller fluid inlet, and the inner diameter is the inlet of the conveying air opposite to the centrifugal impeller. As shown in FIG. 1 , the structure of the fluid inlet 300 is a funnel-shaped structure.

Further, as shown in FIG. 1 , a flow negative pressure amplification structure is further provided behind the fluid outlet end of the guide strip. The flow negative pressure amplification structure is a shell including a fluid channel in the outlet end and a fluid input channel outside the outlet end; the outlet of the fluid input channel outside the outlet end communicates with the fluid channel in the outlet end. It should be noted that when the negative pressure amplification structure at the outlet end is applied to the fluid action device, the fluid channel in the outlet end is the fluid guide channel of the fluid action device; When flowing at high speed, the fluid will generate a negative pressure at the inlet of the outer fluid input channel at the outlet end relative to the inlet of the outer fluid input channel at the outlet end. Under the action of the negative pressure, the outer fluid flows from the inlet of the outer fluid channel at the outlet end to the outlet end. Participate in the flow of the inner fluid in the inner fluid channel, thereby realizing flow expansion. In addition, the outlet flow negative pressure amplification structure and the conducting body of the fluid action device may be an integrally formed structure or a combined structure.

The working principle of the fluid centrifugal cross-flow structure provided by the present invention is that the centrifugal impeller is driven to rotate by the driving source installed on the driving support structure 400, and the fluid input from the fluid inlet is acted by the centrifugal impeller to flow laterally to the guide of the flow structure. The flow surface is then guided through the flow guide surface of the flow guide structure, so that the fluid flow turns to the outlet of the straight cylinder structure and flows out.

Further, the driving support structure is configured to be embedded in a fixing device structure with the suspension end of the guide bar, and the suspension end of the guide bar is provided with an embedding device slot for the driving support structure; or is set to be integrated with the suspension end of the guide bar. The fixing structure of the structure; it is also possible to set an annular body integrated at the suspension end of the guide bar for driving the support structure to be inserted into the sleeve device, and the drive support structure is taken as an independent structure to insert the sleeve and obtain the fastening. Fastening fixtures.

In specific implementation, as shown in FIG. 3 , the driving support structure 400 is set to be embedded in a fixing device structure with the suspension end of the guide bar 211 , and the suspension end of the guide bar 211 is provided with an embedding device slot 214 for the driving support structure;

Optionally, the driving support structure 400 is set as a fixed structure integrated with the suspension end of the guide bar 211; alternatively, the drive support structure 400 is set as an integrated structure at the suspension end of the guide bar for the insertion of the drive support structure The annular body of the telescopic device, the drive support structure 400 is taken as a separate structure to insert the telescopic device and obtain the fixing device for the fastening of the fasteners.

Further, the driving support structure is arranged on the mounting fixture on the suspension end on the inner side of the guide bar, and the mounting fixture is integrally formed or connected and combined with the suspension end on the inner side of the guide bar. to make.

It should be noted that the embodiment of the installation mode of the drive support structure and the suspension end of the guide bar provided by the present invention is only to illustrate that the drive support structure can be arranged at the suspension end of the guide bar. Other structures for the installation of the suspension end also belong to the protection scope of the present invention.

Further, the driving support structure 400 is set as a base of the device driving motor. In a specific implementation, as shown in FIG. 1 and FIG. 2 , the drive support structure 400 is set as the base of the device drive motor for installing the built-in drive source.

Further, the drive support structure 400 is set as a bearing seat for supporting the transmission shaft. In specific implementation, as shown in FIG. 4 , the drive support structure 400 is set as a bearing seat for supporting the transmission shaft, and the drive support structure 400 may be provided with a transmission shaft for connecting to an external drive source.

It should be noted that the drive support structure is not only used as the base of the drive motor and the bearing seat for supporting the transmission shaft, all structural improvements made to support the drive source also belong to the scope of protection of the present invention.

Further, a plurality of the guide strips 211 are combined to form a straight cylinder structure through a tenon joint connection structure, a plug connection structure or a connection piece connection structure.

During specific implementation, as shown in FIG. 5 , the combined guide strips 211 may be connected by a tenon structure. The adjacent guide strips 211 may be provided with matching tenon 221 and tenon groove 222 at the connection portion.

During specific implementation, as shown in FIG. 6 , the combined guide strips 211 may be connected through inserts. The adjacent guide strips 211 may be provided with matching slots 223 and inserts 224 at the head end or the tail end, and may also be provided with matching slots 223 and inserts 224 at both ends of the head and tail or in the middle.

During specific implementation, as shown in FIG. 7 , the combined guide bars 211 may be connected by connecting pieces. The adjacent guide strips 211 may be provided with matching connecting grooves 225 and connecting pieces 226 at the head or tail ends, or may be provided with matching connecting grooves 225 and connecting pieces 226 at both ends.

It should be noted that the combined structure of the tenon joint, insert piece, and connecting piece of the combined guide strip is only an example, and the mutual position and direction positioning of the adjacent guide strips can be realized, or the mutual connection is also included. Fixed, any combination that enables several guide strips to form an annular structure can be used.

Further, the fluid centrifugal through-flow structure body further includes an outer sleeve 216 , and the flow guiding structure 210 is disposed in the outer sleeve 216 .

Further, the length of the outer sleeve is greater than the length of the built-in guide strip.

In specific implementation, as shown in FIGS. 5-7 , the diversion structure 210 is set as an annular structure 215 composed of several independent structures, and then nested with the outer sleeve 216 to form a combined centrifugal flow through the fluid. The cylinder body supports the improvement of the manufacturing process of the diversion structure and improves the processing efficiency.

Further, a plurality of the guide strips are integrally formed to enclose a straight cylindrical structure. During specific implementation, as shown in FIGS. 8 and 9 , the flow guide structure 210 is an integrally formed structure with a flow guide function, and a plurality of flow guide bars 211 are distributed on the inner surface.

Further, as shown in FIG. 8 , according to specific usage scenarios, the guide strips 211 may be clockwise distributed on the inner surface of the guide structure 210 .

Optionally, as shown in FIG. 9 , the guide strips 211 may also be left-handedly distributed on the inner surface of the guide structure 210 .

Further, the guide surface of the guide bar is one or more of a combined surface structure selected from a curved surface structure, a planar structure, and a folded surface structure.

During specific implementation, as shown in FIGS. 10-14 , the guide surface 212 of the guide bar 211 may be a curved surface, a flat surface or a folded surface structure. Specifically, according to the usage scenario, the guide surface 212 of the guide bar 211 may also be a part or all of the combined structure of a curved surface, a flat surface, and a folded surface.

Further, the fluid outflow end of the guide surface of the guide bar is configured as a variable guide structure.

Further, the diversion guide structure divides the guide surface into a front guide surface and a rear guide surface; the flow direction of the guide fluid on the rear guide surface is parallel to the axial direction of the guide structure. .

Further, the changing diversion structure divides the diversion surface into a front diversion surface and a rear diversion surface; the flow direction of diversion fluid on the rear diversion surface and the flow direction of diversion fluid on the front diversion surface are formed. Reverse angle.

In specific implementation, the guide surface of the guide bar is set to a variable guide structure and the variable guide structure is selected to obtain the flow field of the set flow direction of the fluid output end of the fluid centrifugal through-flow action device, which supports the centrifugal through-flow action device. The subsequent fluid application flow field at the fluid output end requires no pre-swirl flow field in the parallel case; reverse pre-swirl flow field in the included angle case is a typical example thereof.

As shown in FIG. 13 and FIG. 14 , the fluid outflow end of the guiding surface 212 of the guiding strip 211 itself can adopt a guiding structure, and the direction of the fluid output end of the guiding surface 212 can be parallel to the axial direction of the guiding structure 210 or A reverse included angle with the guide surface 212 of the guide bar 211 is formed, so as to realize the change of the guiding direction of the flow by the guide bar 211 .

Further, at least one diversion strip protruding from the diversion surface is provided on one side of the diversion surface of the diversion strip, and the diversion strip divides the diversion surface into different flow channels that can implement flow redistribution. .

In specific implementation, the guide surface of the guide bar is set as the guide surface of a plurality of flow channels divided by the convex structure, and the flow of the radial moving fluid sent out by the centrifugal impeller is implemented by each flow channel during the flow splitting process. Distribution, the flow field of the set flow rate at the fluid output end of the fluid centrifugal through-flow action device can be obtained, and the subsequent fluid application flow field needs of the fluid output end of the fluid centrifugal through-flow action device can be obtained, so as to finally realize the full diversion surface of the flow guide bar. The distribution of the diversion fluid at the fluid outlet end of the diversion bar along the radial direction of the diversion structure body is determined by the width of the flow channel, so that the flow field distribution of the fluid outlet end of the fluid centrifugal cross-flow device can be used according to the use. Objects or specific usage scenarios need to implement artificially set preset flow fields.

In specific implementation, as shown in FIG. 15 , the guide surface 212 of the guide bar 211 may be composed of several unequally divided flow channels 213 , or as shown in FIG. 16 , the guide surface 212 of the guide bar 211 may be composed of several The equally divided flow channels 213 are formed.

Further, as shown in FIG. 17 , the suspension end of the guide bar 211 can also be preset with an embedded device slot 214 , and the embedded device slot 214 can be used for subsequent installation of the built-in base of the drive source. The suspended end of the guide bar 211 is the side closest to the guide bar 211 and the centrifugal impeller, because it is not attached, and the other side of the guide bar 211 opposite to the suspended end is combined with the cylinder; Since the other side of the guide bar 211 opposite to the suspended end is attached to the inner surface of the cylinder, the other side of the guide bar 211 does not have a suspension relationship.

Further, as shown in FIG. 17 and FIG. 18 , the guide bar 211 may be a solid structure or a hollow structure.

Further, as shown in FIG. 18 and FIG. 19 , according to specific usage scenarios, the guide surface 212 of the guide bar 211 itself can also be set in a right-handed or left-handed manner. The rotation angles of FIGS. 18 and 19 are not specifically limited herein.

Further, the guide surface of the guide bar 211 located behind the centrifugal impeller is arranged in a gradual manner into an expanded surface structure, which can realize the change of the flow field area of the fluid output end of the fluid centrifugal through-flow action device.

It should be noted that the above term "guiding strip" is only used to describe the embodiment, and is not limited to be in the shape of a "strip". fall within the protection scope of the present invention.

In order to make the fluid output mode of the diversion structure suitable for different scene requirements, and to enrich the structure of the diversion structure. The present invention also improves the structure of the fluid output end of the flow guiding structure. For the suspension end of the fluid output end of the flow guide structure located at the rear of the centrifugal impeller, the annular belt structure is used to seal it, which can constrain the flow field of the fluid flowing out of the flow guide structure.

Fig. 20 shows a flow guide structure with an open structure at the suspension end on the outflow side of the guide body, and the flow guide structure is a basic flow guide structure.

Fig. 21 shows a flow-guiding structure with the suspension end on the outflow side of the guiding fluid in a closed structure. The closed structure is formed by extending the edge structure of the driving support structure 400. The flow-guiding structure 210 can act as a beam for the output fluid. .

Further, as shown in FIG. 22 , the driving support structure 400 can also be extended outside the cylinder.

Further, FIG. 23 is a guide mechanism body of a drive source device seat and a closed outflow side suspension end, the closed structure is formed by the side structure of the drive source device seat, and the guide structure body can also play a beam on the output fluid. flow effect.

Further, FIG. 24 is a guide structure 210 in which a guide inner cylinder 230 is added at the outflow side suspension end of the guide body 211 .

The fluid centrifugal cross-flow action structure provided by the present invention can be applied to a turbine-type fluid action device, thereby creating a new model of the turbine-type fluid action device, that is, a turbine-type fluid centrifugal cross-flow action device, It can effectively solve the problem that the existing centrifugal turbine type fluid action device cannot effectively change the fluid flow direction and the direction of the fluid entering and exiting the centrifugal turbine type fluid action device is coaxial and coaxial, and the existing centrifugal turbine type fluid action device. Compared with the device, the path length of the fluid conveying direction change can be significantly shortened, the pressure loss of the fluid in the process of changing the fluid flow direction can be reduced, and the working efficiency of the turbine-type fluid action device can be significantly improved. As shown in FIG. 25 or FIG. 26 , a fluid centrifugal through-flow action device includes a centrifugal impeller 100 and a centrifugal through-flow guide cylinder; wherein, a flow guide structure 210 is provided on the inner surface of the centrifugal through-flow guide cylinder, The centrifugal impeller 100 is disposed in the inner space of the flow guiding structure 210 .

During specific implementation, the flow guiding structure 210 may be composed of a plurality of guiding strips 211 extending along the axis direction, or may be an integrally formed structure with a flow guiding function.

In specific implementation, the centrifugal cross-flow guide cylinder may be formed by combining the entire outer surfaces of the flow guide structure 210 , or may be an independent outer sleeve structure. The independent outer sleeve structure can be made of rigid material, flexible material structure or tape-shaped material winding and polymer material.

Further, as shown in FIG. 25 , the fluid inlet structure 300 is a bucket body structure, and the fluid outlet of the bucket body is adapted to the fluid inlet of the centrifugal impeller.

Optionally, as shown in FIG. 26 , the fluid inlet structure 300 is set as a combined fixed structure with the fluid inlet end of the straight-tube structure.

It should be noted that, in addition to the bucket body structure, the integrated structure with the fluid inlet end of the straight-tube structure, and the combined fixed structure with the fluid inlet end of the straight-tube structure, the fluid inlet structure 300 is designed for the purpose of setting on the diversion structure body 210. The structure of the fluid inlet also belongs to the protection scope of the present invention.

The working principle of the fluid centrifugal through-flow action device provided by the present invention is as follows: the centrifugal impeller 100 is driven to rotate by the driving source, so that the fluid is input from the inlet (or inlet) of the centrifugal through-flow guide cylinder; the fluid is acted by the centrifugal impeller 100, Make the fluid reach the guide surface 212 of the guide structure 210 in the direction perpendicular to the axis of the centrifugal through-flow cylinder; under the action of the structural guide set by the guide surface 212 of the guide structure 210, the fluid will flow from the vertical direction. In the axial direction of the centrifugal cross-flow guide cylinder 200 , the flow around the axis of the centrifugal cross-flow guide cylinder or the flow parallel to the axis of the centrifugal cross-flow guide cylinder is changed, thereby obtaining a fluid centrifugal cross-flow action mode.

The fluid centrifugal flow action device utilizes the synergistic combination of the centrifugal impeller and the centrifugal flow guide cylinder, so that the fluid can enter in a centrifugal way and output in an axial flow way, so that the respective advantages of the axial flow fluid action device and the centrifugal fluid action device are better. Optimally combined. The centrifugal through-flow action device can not only be used in series in the fluid passage, which is beneficial to the simplification and optimal design of the fluid passage, but also can improve the working efficiency of the fluid drive, and can significantly reduce the volume of the fluid action device.

In the description of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (16)

1. A fluid centrifugal flow-through construction, comprising: a flow directing structure, a fluid inlet structure and a drive support structure; the flow guide structure body is a straight cylinder structure formed by surrounding a plurality of flow guide strips; the fluid inlet structure is a structure which is adapted to the fluid input of the centrifugal impeller and is arranged at the fluid input end of the straight cylinder structure to form a fluid inlet of a fluid centrifugal cross-flow action structure body; the fluid outlet end of the straight cylinder structure forms a fluid outlet of the fluid centrifugal through-flow action structure body; the suspension end surrounding space at the inner side of the flow guide strip forms the device space of the centrifugal impeller; the drive support structure is arranged on the suspended end inside the guide strip and behind the space where the centrifugal impeller is arranged.

2. The fluid centrifugal flow-through construction of claim 1, wherein: the inner caliber of the fluid inlet is not larger than the caliber of the fluid inlet of the centrifugal impeller.

3. The fluid centrifugal flow-through construction of claim 2, wherein: the structure of the fluid inlet is a funnel-shaped structure.

4. The fluid centrifugal flow-through construction of claim 1, wherein: the driving support structure is designed to be a fixing device structure embedded with the suspension end of the guide strip, and the suspension end of the guide strip is provided with an embedding device groove aiming at the driving support structure; or a fixing structure integrated with the suspension end of the diversion strip is arranged; or an integrated annular body for driving the supporting structure to be inserted into the nesting device is arranged at the suspension end of the guide strip, and the driving supporting structure is an independent structure so as to be inserted into the nesting device and obtain a fixing device for fastening a fastener.

5. A fluid centrifuging flow-through construction according to any of claims 1 to 4 wherein: the driving support structure is a base for mounting a driving motor or a bearing seat for supporting a transmission shaft.

6. The fluid centrifugal flow-through construction of claim 1, wherein: and the guide strips are combined to form a straight cylinder structure through a joggle connection structure, an insertion piece connection structure or a connecting piece connection structure.

7. The fluid centrifugal flow-through construction of claim 1, wherein: and the plurality of guide strips are integrally formed to enclose a straight cylinder structure.

8. A fluid centrifugal flow-through architecture according to claim 6 or 7, wherein: the straight cylinder structure is arranged in the outer sleeve.

9. The fluid centrifugal flow-through construction of claim 8, wherein: the length of the outer sleeve is larger than that of the built-in flow guide strips.

10. The fluid centrifugal flow-through construction of claim 1, wherein: the flow guide surface of the flow guide strip is in one or more combined surface structures of a curved surface structure, a plane structure and a folded surface structure.

11. The fluid centrifugal flow-through construction of claim 1, wherein: and the fluid outflow end of the flow guide surface of the flow guide strip is provided with a direction-changing flow guide structure.

12. A fluid centrifuging flow-through construction in accordance with claim 11, wherein: the diversion flow guide structure divides the flow guide surface into a front flow guide surface and a rear flow guide surface; the flow direction of the diversion fluid of the rear diversion surface is parallel to the axial direction of the diversion structure body.

13. A fluid centrifuging cross flow structure in accordance with claim 11 wherein: the diversion flow guide structure divides the flow guide surface into a front flow guide surface and a rear flow guide surface; the flow direction of the guide fluid of the rear guide surface and the flow direction of the guide fluid of the front guide surface form a reverse included angle.

14. A fluid centrifugation flow-through construction according to any one of claims 12-13, wherein: at least one shunt strip protruding out of the flow guide surface is arranged on one side of the flow guide surface of the flow guide strip, and the shunt strip divides the flow guide surface into different flow channels capable of implementing flow redistribution.

15. The fluid centrifugal flow-through construction of claim 1, wherein: the driving supporting structure is arranged on the mounting and fixing piece on the suspension end on the inner side of the guide strip, and the mounting and fixing piece and the suspension end on the inner side of the guide strip are integrally formed or are connected and combined.

16. The fluid centrifugal flow-through construction of claim 1, wherein: a flow negative pressure amplification structure is arranged behind the fluid outlet end of the diversion strip, and the flow negative pressure amplification structure is a shell comprising an outlet end internal fluid channel and an outlet end external fluid input channel; the outlet of the fluid input channel outside the outlet end is communicated with the fluid channel inside the outlet end.

Images