CN220539933U

CN220539933U - Impeller and distributor

Info

Publication number: CN220539933U
Application number: CN202221497294.XU
Authority: CN
Inventors: 闫佳林; 彭方华; 王文
Original assignee: SUZHOU HUAYUE METAL CO Ltd
Current assignee: SUZHOU HUAYUE METAL CO Ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2024-02-27
Anticipated expiration: 2032-06-15

Abstract

The utility model provides an impeller and a distributor, the impeller comprises a plate body and a plurality of blades, wherein the plate body is provided with a plurality of radial flow dividing holes which are circumferentially distributed, the blades are integrally formed with the plate body corresponding to each flow dividing hole, the blades are obliquely arranged from the plate body towards the direction deviating from the flow dividing holes along the axial direction of the impeller, and the width of the projection of the blades to the plate body is larger than or equal to the width of the flow dividing holes, so that gas-liquid is prevented from flowing into the holes of the blades and the flow dividing holes, and uniform flow division is realized.

Description

Impeller and distributor

Technical Field

The application relates to the technical field of distributors, in particular to an impeller and a distributor.

Background

The distributor in the current market is provided with a single-form impeller for distributing the flow of the gas-liquid two-phase refrigerant, so that the flow can be dynamically and uniformly distributed to a plurality of outlet ends, and the distribution effect of the impeller is important for the normal and effective operation of the distributor. However, when the existing impeller structure is used for processing the blades by adopting a stamping forming process, gaps are easily formed between the tail ends of the blades along the radial direction of the impeller and the side walls of the flow dividing holes, part of refrigerant directly flows through the gaps, the flow guiding effect of the blades cannot be obtained, and the problems of uneven flow distribution and bias flow of the gas-liquid two-phase refrigerant exist.

Disclosure of Invention

In view of the above, it is desirable to provide an impeller and a distributor that reduce the risk of gap formation and promote uniform flow distribution of the impeller structure.

The present utility model provides an impeller comprising:

the plate body is provided with a plurality of radial flow dividing holes which are circumferentially distributed; and

the blades are arranged in an integrated mode with the plate body, and the blades and the plate body are integrally formed through powder metallurgy; or the blade and the plate body are integrally formed through 3D printing; or the blade and the plate body are integrally formed through laser sintering.

So set up, be equipped with a plurality of branch flow holes that are radial on the plate body for guide gas-liquid to blade evenly shunts, and a plurality of blades correspond the branch flow hole respectively and shunt, avoid gas-liquid drift, blade and plate body integrated into one piece's setting, simple structure is convenient for gas-liquid to shunt, in addition, blade and plate body pass through powder metallurgy integrated into one piece, in order to practice thrift impeller preparation material, blade and plate body pass through 3D and print integrated into one piece, one shot forming is in order to practice thrift impeller preparation time, blade and plate body pass through laser sintering integrated into one piece, laser sintering finished product precision is high, smooth blade is convenient for evenly shunt gas-liquid.

In one embodiment of the utility model, the impeller further comprises a connecting portion connected to the side edge of the vane from the edge of the tap hole.

The connecting part is connected with the edge of the diversion hole and the side edge of the blade, so that the blade is reinforced to bear the gas-liquid impact flowing in through the diversion hole, and the structure of the blade and the plate body integrated into one piece is stabilized.

In one embodiment of the utility model, the blade comprises a blade body and a diversion trench, and the diversion trench is formed by recessing inwards from the end surface of the blade body along the thickness direction of the blade body; along the length direction of blade body, a plurality of guiding gutter interval sets up side by side.

So set up, the blade includes blade body and guiding gutter, and follows the thickness direction of blade body to carry out secondary reposition of redundant personnel with the gas-liquid after reposition of redundant personnel through reposition of redundant personnel awl or splitter box reposition of redundant personnel, the guiding gutter inwards sunken formation from the terminal surface of blade body, and along the length direction of blade body, a plurality of guiding gutter intervals set up side by side, are used for strengthening the flow on the reposition of redundant personnel blade, avoid the too big and reposition of redundant personnel uneven of flow on the blade of flow through the reposition of redundant personnel hole inflow.

In one embodiment of the utility model, the blade comprises a blade body and a notch, wherein the notch is arranged at one end of the blade body far away from the plate body along the width direction of the blade body, and the notch is toothed.

So set up, the blade includes blade body and breach, and follows the width direction of blade body for the reposition of redundant personnel flows into the gas-liquid on the blade through the reposition of redundant personnel hole, in addition, is equipped with the dentate breach in the one end that the plate body was kept away from in the blade main part, in order to evenly divide the gas-liquid on the blade.

In one embodiment of the utility model, the blades are fan-shaped.

So set up, fan-shaped blade is convenient for when gas-liquid flow through the blade body, smoothly flows into the guiding gutter and carries out the gas-liquid reposition of redundant personnel.

In one embodiment of the utility model, the cross section of the blade is triangular, and the width from the width of the end of the impeller close to the plate body to the width of the end of the impeller away from the plate body is gradually reduced.

So set up, the cross-section of blade is triangle-shaped to produce the slope when shunting the blade, the cross-section width diminishes gradually from the one end that is close to the plate body to the one end that deviates from the plate body, makes the blade produce top-down's slope, is convenient for gas-liquid and carries out even reposition of redundant personnel on the blade.

In one embodiment of the present utility model, the impeller further includes a splitter, where the splitter is integrally formed with the plate body, and the plurality of splitter holes are disposed at equal intervals along a circumferential direction of the splitter, and the plurality of splitter holes are radially distributed with the splitter as a center.

So set up, be equipped with the reposition of redundant personnel piece in the radial center position in a plurality of reposition of redundant personnel holes for shunt gas-liquid and with the gas-liquid drainage of reposition of redundant personnel to each reposition of redundant personnel hole in, reposition of redundant personnel piece and plate body integrated into one piece, and a plurality of reposition of redundant personnel holes are along the equidistant setting of reposition of redundant personnel piece circumference, and the gas-liquid of being convenient for is directly by the drainage to the reposition of redundant personnel hole, avoids establishing connecting portion and producing the bleeder because of adding.

In one embodiment of the utility model, the flow dividing member is a flow dividing cone formed by protruding outwards from the end surface of the plate body along the axial direction of the impeller, or the flow dividing member is a flow dividing groove formed by recessing inwards from the end surface of the plate body.

The setting like this, the reposition of redundant personnel piece is the reposition of redundant personnel awl, and follows the axial of impeller, and the outside arch of reposition of redundant personnel awl from the terminal surface of plate body forms to reposition of redundant personnel gas-liquid and drainage gas-liquid to the reposition of redundant personnel hole, the reposition of redundant personnel piece is for the water conservancy diversion groove that inwards sunken formation from the terminal surface of plate body for buffering gas-liquid to full whole water conservancy diversion groove, the gas-liquid flow of overflow carries out even reposition of redundant personnel to each reposition of redundant personnel hole.

In one embodiment of the utility model, the blades are arranged obliquely from the plate body towards the direction away from the diversion holes along the axial direction of the impeller, and the width of the blades projected to the plate body is larger than or equal to the width of the diversion holes.

So set up, the blade sets up and the blade projection is greater than the width of reposition of redundant personnel hole to the width of plate body from the plate body orientation direction slope that deviates from the reposition of redundant personnel hole to when gas-liquid reached the blade through the reposition of redundant personnel hole, guaranteed that gas-liquid can all flow through the blade and reposition of redundant personnel, avoided gas-liquid to directly flow out the impeller through the reposition of redundant personnel hole.

The utility model also provides a distributor comprising the impeller in the embodiment.

Compared with the prior art, when the impeller provided by the utility model is used for gas-liquid flow division, the width of the blades is increased, so that the width of the inclined blades projected to the plate body is ensured to be larger than the width of the flow dividing holes, and the gas-liquid can completely flow through the blades to be divided through the flow dividing holes.

In addition, the guide part is additionally arranged on the blade so as to uniformly split the gas and the liquid on the blade and avoid uneven split.

Drawings

FIG. 1 is a schematic illustration of a prior art blade;

FIG. 2 is a schematic line drawing of a blade of the present utility model;

FIG. 3 is a schematic view of a structure in which a flow dividing cone is provided on an impeller according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a impeller with a splitter box according to another embodiment of the utility model;

FIG. 5 is a schematic view of a partial cross-sectional structure of a impeller according to another embodiment of the present utility model;

FIG. 6 is a schematic view of another embodiment of the present utility model in which a connection portion is provided on an impeller;

FIG. 7 is a schematic view of a vane of a impeller having flow channels according to another embodiment of the present utility model;

FIG. 8 is a schematic view of a blade of an impeller according to another embodiment of the present utility model having a notch.

Reference numerals: 10. a plate body; 11. a diversion aperture; 20. a blade; 21. a blade body; 22. a flow guiding part; 221. a diversion trench; 222. a notch; 23. a cross section; 30. a connection part; 40. a shunt; 41. a split cone; 42. a shunt channel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It is noted that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "or/and" as used herein includes any and all of one or more of the associated listed items.

Referring to fig. 1, when the conventional impeller is used for splitting or guiding flow, the fluid firstly passes through the splitting hole of the impeller 100A, then reaches the blades 200A, and is further guided by the blades 200A, so that when the impeller 100A is applied to a distributor, the gas and the liquid which are expected to be discharged through the distributing opening of the distributor are uniformly mixed. However, the conventional vane is manufactured by a press forming method, and after the press forming, the vane 200A has an inclined angle, and a certain gap Δl1 is formed between the vane 200A and the sidewall of the impeller 100A where the flow dividing hole is located, and at this time, the projected width of the vane 200A on the plane where the impeller 100A is located is smaller than the width of the flow dividing hole. Because of the gap, part of the fluid can not contact the blades when passing through the diversion holes, namely, the part of the fluid can not be guided by the blades, and the gas-liquid in the distributor can be uneven.

As described with reference to fig. 2, the blades 20 of the present application are obliquely disposed from the plate body 10 toward the direction away from the diversion hole 11, and the width of the blades 20 projected onto the plate body 10 is greater than or equal to the width L1 of the diversion hole 11, that is, the width of the blades 20 projected onto the plate body 10 is equal to l1+Δl2, where Δl2 may be zero, so that when the fluid passes through the diversion hole, all the fluid contacts with the blades, thereby being beneficial to uniform gas-liquid diversion in the distributor.

Referring to fig. 3 to 8, the present utility model provides an impeller, which includes a plate body 10 and blades 20, wherein the blades 20 and the plate body 10 are integrally formed, in addition, a plurality of diversion holes 11 are formed on the plate body 10, the plurality of diversion holes 11 are radially arranged on the plate body 10 for diverting gas and liquid, and the plurality of blades 20 are in one-to-one correspondence with the diversion holes 11 for diverting the gas and liquid flowing through the diversion holes 11 to each blade 20, so as to avoid bias current.

Specifically, the blade 20 and the plate body 10 are integrally formed through powder metallurgy, impellers made of different materials are required to be used for gas-liquid diversion according to different gas-liquid components, the powder metallurgy can be used for processing various metal materials, and materials are saved when the blade 20 and the plate body 10 are integrally formed and processed, so that various gas-liquid can be conveniently diverted; as other embodiments, the blades 20 and the plate body 10 can be integrally formed through 3D printing, and as the impeller adopts an integrally formed design, a plurality of blades 20 are easy to damage during processing, and 3D printing can be performed according to various structures, so that the impeller is prevented from being difficult to integrally form and process due to special structures; the blade 20 and the plate body 10 can be integrally formed through laser sintering, when gas and liquid enter the impeller to split, the smooth surface of each splitting component of the impeller needs to be ensured to split uniformly, the laser sintered impeller has good precision and high strength, and the splitting piece 40 and the blade 20 can be conveniently and uniformly split.

Further, the blades 20 are obliquely arranged from the plate body 10 towards the direction deviating from the diversion holes 11, and along the axial direction of the impeller, the width of the blades 20 projected to the plate body 10 is larger than or equal to the width of the diversion holes 11, so that gas and liquid flowing through the diversion holes 11 can be completely distributed to the blades 20, the gas and liquid can be prevented from directly flowing through the holes between the blades 20 and the diversion holes 11 through the diversion holes 11, and uniform distribution is difficult to perform.

The impeller further comprises a connecting part 30 and a flow dividing piece 40, wherein the connecting part 30 is used for connecting the plate body 10 and the blades 20, so that the arrangement of the blades 20 and the plate body 10 which are integrally formed is stable, the deformation of the blades 20 caused by impact when gas-liquid flows to the blades 20 is avoided, and the strength is improved. In addition, the flow dividing member 40 is installed on the plate body 10 and integrally formed with the plate body 10, and the plurality of flow dividing holes 11 are arranged at equal intervals along the circumferential direction of the flow dividing member 40, and are radially distributed on the plate body 10 with respect to the flow dividing member 40 or with the flow dividing member 40 as the center, and the flow dividing member 40 performs gas-liquid once flow dividing and then guides the gas-liquid into each flow dividing hole 11 to avoid bias flow.

It should be understood by those skilled in the relevant art that when the impeller plate 10 is applied to the dispenser, the impeller plate is installed in the cavity of the dispenser, and the direction of the flow diversion member 40 and the direction of the flow diversion of the blade 20 correspond to the gas-liquid inlet and outlet of the dispenser respectively, and since the present application is directed to the improvement of the structure of the impeller, the description of the content of the dispenser will not be described later.

In an embodiment, as shown in fig. 6 to 7, the impeller includes a connection portion 30 for connecting the impeller body 10 and the impeller 20, specifically, the connection portion 30 connects with a side edge of the impeller 20 from a rim of the flow hole 11, so that when gas and liquid flow to the impeller 20 through the flow hole 11, the connection portion 30 stabilizes the impeller 20 to avoid deformation or even fracture of the impeller 20 due to impact of the gas and liquid on the impeller 20. But not limited to this, add the strengthening rib at the blade 20 back, connect in the plate body 10 back, and the strengthening rib is according to the inclination adjustment height of blade 20, guarantees that blade 20 receives the gas-liquid impact of different dynamics.

Further, when the blade 20 is inclined on one side, a single connecting portion 30 is provided for supporting the blade 20 on one side to receive the flow of the gas and the liquid, and when the blade 20 is inclined on both sides, two connecting portions 30 are provided for supporting the blade 20 on both sides to receive the flow of the gas and the liquid, and according to the inclined angle of the blade 20 and the force required to receive the flow of the gas and the liquid, the number of the connecting portions 30 is selected for stabilizing the integrally formed structure of the blade 20 and the plate 10.

As shown in fig. 7 to 8, the vane 20 includes a vane body 21 and a flow guide portion 22, and the flow guide portion 22 is provided to the vane body 21 to uniformly divide the gas and liquid flowing toward the vane 20 through the flow-through hole 11.

Specifically, in an embodiment, the flow guiding portion 22 includes a plurality of flow guiding grooves 221 for guiding the gas and the liquid on the blade 20, the flow guiding grooves 221 are formed by recessing inwards from the end surface of the blade body 21 along the thickness direction of the blade body 21, the plurality of flow guiding grooves 221 are arranged on the blade body 21 side by side at intervals along the length direction of the blade body 21, the plurality of flow guiding grooves 221 are convenient for guiding the gas and the liquid on the blade 20 side by side at intervals, so as to uniformly guide the gas and the liquid on the blade 20, and avoid bias current caused when the blade 20 is split; in another embodiment, the flow guiding portion 22 is a tooth-shaped notch 222, and the notch 222 is disposed at one end of the blade body 21 away from the plate body 10 along the width direction of the blade body 21, and the gas and liquid flowing to the blade 20 through the flow dividing hole 11 for flow dividing are uniformly divided through the tooth-shaped notch 222. But not limited thereto, a slot nozzle is additionally provided at one end of the vane 20 facing away from the plate body 10 for uniformly distributing the gas and liquid.

In one embodiment, as shown in fig. 3-5, the vanes 20 are fan-shaped to facilitate the flow splitting of the gas-liquid by the vanes 20; in another embodiment, as shown in fig. 6, the cross section 23 of the blade 20 is triangular, so that the gas-liquid flowing through the blade 20 is inclined for diversion, further, the width of the cross section 23 of the blade 20 gradually decreases from the end close to the plate 10 to the end away from the plate 10, and the gas-liquid flowing to the blade 20 through the diversion holes 11 is diverted along the blade 20 with the triangular cross section 23. But is not limited thereto, the cross section 23 of the vane 20 is provided in an arc shape so as to uniformly split the gas and liquid on the vane 20.

In an embodiment, as shown in fig. 3 to 4, the plate body 10 further includes a diverter 40, which is used for diverting the gas and the liquid entering the impeller once, the diverter 40 is arranged at the radiation center positions of the plurality of diversion holes 11 and is integrally formed with the plate body 10, so that the diverter 40 is convenient for diverting the diverted gas and the liquid to each diversion hole 11 for uniform diversion after one diversion, in addition, the diverter 40 and the plate body 10 are integrally formed, so that the diverter 40 is convenient for directly diverting the gas and the liquid to the diversion holes 11, and avoiding the occurrence of leakage to the connecting part due to the addition of the connecting part. The flow dividing member 40 may be a flow dividing cone 41 or a flow dividing groove 42, and the flow dividing cone 41 is formed to protrude outward from the end surface of the plate body 10 in the axial direction of the impeller, and the flow dividing groove 42 is formed to be recessed inward from the end surface of the plate body 10.

Specifically, when the flow divider 40 is the flow divider 41, the flow divider 41 divides the gas and the liquid once, and guides the divided gas and liquid to each flow dividing hole 11 for secondary flow division, and when the flow divider 40 is the flow dividing groove 42, the gas and the liquid entering the impeller directly flow into the flow dividing groove 42 for buffering until overflowing, and the overflowed gas and liquid flows into the flow dividing holes 11 for uniform flow division.

The impeller provided by the utility model has the following flow dividing principle: when the gas-liquid flows into the impeller, the gas-liquid flows into each flow dividing hole 11 through the flow dividing piece 40, the gas-liquid flows into the flow dividing holes 11 because the width of the plate body 10 projected by the blade 20 is larger than or equal to the width of the flow dividing holes 11, the gas-liquid flowing into the flow dividing holes 11 directly flows to the flow guiding part 22 of the blade 20, when the flow guiding part 22 is the second flow guiding groove 221, the gas-liquid flowing into the blade 20 uniformly flows through the flow guiding groove 221 to complete secondary flow division, and when the flow guiding part 22 is the toothed notch 222, the gas-liquid flowing into the blade 20 uniformly flows through the toothed notch 222 to complete secondary flow division.

The technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments are not described, however, all of the combinations of the technical features should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that suitable modifications and variations of the above embodiments are within the scope of the utility model as claimed.

Claims

1. An impeller, comprising

the blades are arranged in an integrated mode with the plate body, and the blades and the plate body are integrally formed through powder metallurgy; or (b)

The blade and the plate body are integrally formed through 3D printing; or (b)

The blade and the plate body are integrally formed through laser sintering.

2. The impeller of claim 1, further comprising a connection portion connected from a rim of the tap hole to a side of the vane.

3. The impeller according to claim 1, wherein the blade includes a blade body and a flow guide groove formed recessed inward from an end surface of the blade body in a thickness direction of the blade body; along the length direction of blade body, a plurality of guiding gutter interval sets up side by side.

4. The impeller of claim 1, wherein the blade comprises a blade body and a notch, the notch being provided at an end of the blade body remote from the plate body in a width direction of the blade body, the notch being toothed.

5. The impeller of claim 1, wherein the blades are fan-shaped.

6. The impeller of claim 1, wherein the blades are triangular in cross-section and taper from a width at an end of the impeller proximate the plate to a width at an end of the impeller distal from the plate.

7. The impeller of claim 1, further comprising a splitter integrally formed with the plate, wherein the plurality of splitter apertures are disposed circumferentially equidistant along the splitter, and wherein the plurality of splitter apertures are radially distributed about the splitter.

8. The impeller according to claim 7, characterized in that the flow dividing member is a flow dividing cone formed to protrude outward from an end surface of the plate body or a flow dividing groove formed to be recessed inward from an end surface of the plate body in an axial direction of the impeller.

9. The impeller according to any one of claims 2 to 8, characterized in that the blades are disposed obliquely from the plate body toward a direction away from the flow dividing hole in an axial direction of the impeller, and a width of the blades projected to the plate body is equal to or larger than a width of the flow dividing hole.

10. A dispenser comprising an impeller according to any one of claims 1 to 9.