CN114963622A

CN114963622A - Shunting structure and distributor with same

Info

Publication number: CN114963622A
Application number: CN202110190840.9A
Authority: CN
Inventors: 张克鹏
Original assignee: Zhejiang Dunan Artificial Environment Co Ltd
Current assignee: Zhejiang Dunan Artificial Environment Co Ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2022-08-30

Abstract

The invention relates to the technical field of refrigeration, in particular to a shunting structure and a distributor with the same. The flow dividing structure comprises a pore plate, a mixing part and a plurality of bent pipes, wherein the pore plate is provided with a plurality of inlets, a mixing chamber is arranged in the mixing part, one ends of the plurality of bent pipes are respectively communicated with the corresponding inlets, and the other ends of the plurality of bent pipes extend into the mixing chamber; wherein, the one end that the return bend stretches into the mixing chamber has to punching a hole, and a plurality ofly is to punching a hole and be the state of gathering together and lay in the mixing chamber. The invention has the advantages that: firstly, the refrigerant and the wall surface of the bent pipe are impacted and collided, so that a vortex is generated, and the mixing of the liquid refrigerant and the gas refrigerant in each bent pipe is facilitated; the mixed refrigerants continue to flow in the bent pipe, the refrigerants finally flow out of the opposite punching holes and are converged in the mixing chamber, and the multiple opposite punching holes are distributed in a gathering state, so that the refrigerants can flow out of the opposite punching holes at high speed to generate impact collision, the gas-liquid refrigerants are disturbed, and the gas-liquid two-phase refrigerants are further uniformly mixed.

Description

Shunting structure and distributor with same

Technical Field

The invention relates to the technical field of refrigeration, in particular to a shunting structure and a distributor with the same.

Background

The distributor is used for distributing the refrigerant to different flow paths, so that the refrigerant in each flow path can be completely evaporated, and the optimal heat exchange effect can be achieved.

However, the refrigerant before entering the distributor is usually a gas-liquid two-phase mixed refrigerant, which causes a difference in the amount of liquid entering each flow path, thereby reducing the refrigeration effect; if the liquid supply in the pipeline is insufficient, the refrigerant can be quickly evaporated into gas, and the heat exchange area can not play an effective role; if too much liquid is supplied in the pipeline, the liquid return phenomenon can occur, so that the liquid supply amount is correspondingly reduced by the throttling part in front of the distributor, and the liquid distribution is more uneven after the flow is reduced, thereby reducing the heat exchange performance and influencing the working performance of the whole refrigerating system.

Disclosure of Invention

In view of the above, it is desirable to provide a flow distribution structure and a dispenser having the same, which have simple structure, uniform flow distribution and low cost.

In order to solve the technical problem, the application provides the following technical scheme:

a flow dividing structure comprises a pore plate, a mixing part and a plurality of bent pipes, wherein a plurality of inlets are formed in the pore plate, a mixing chamber is arranged in the mixing part, one ends of the plurality of bent pipes are respectively communicated with the corresponding inlets, and the other ends of the plurality of bent pipes extend into the mixing chamber;

the end, stretching into the mixing chamber, of the bent pipe is provided with a pair of punched holes, and the pair of punched holes are distributed in the mixing chamber in a gathering state.

In the application, the pore plate is arranged, and the plurality of inlets are formed in the pore plate, so that the flow velocity of the refrigerant at the inlets can be increased due to the local contraction formed at the inlets; meanwhile, one end of each bent pipe extends into the mixing chamber, the plurality of pairs of punched holes are distributed in the mixing chamber in a gathering state, when the refrigerant flows into the bent pipes from the inlet, the gas-liquid mixed refrigerant can impact and collide with the wall surfaces of the bent pipes firstly in the process of flowing through the bent pipes due to the fact that the plurality of pipelines are the bent pipes, and therefore vortex flow is generated, and mixing of the liquid refrigerant and the gas refrigerant in each bent pipe is facilitated; and as the mixed refrigerants continue to flow in the bent pipes, the refrigerants in each bent pipe finally flow out of the offset holes and are converged in the mixing chamber, and the multiple offset holes are distributed in a gathering state, so that the refrigerants in different bent pipes can flow out at high speed from the offset holes to generate impact collision, the turbulence of the gas-liquid refrigerants is disturbed, and the gas-liquid two-phase refrigerants are further uniformly mixed.

In one embodiment, the axis of the pair of punches and the axis of the orifice plate have an angle a between them, 0 ° < a < 90 °.

So set up for can produce when the refrigerant in every bent pipe flows out from the offset hole high speed and strike the collision, make the further misce bene of gas-liquid two-phase refrigerant.

In one embodiment, the axis of the pair of punches and the axis of the orifice plate have an angle a, 30 ° < a < 60 °.

So set up for produce stronger impact clash from the high-speed refrigerant that flows out of counterblow hole, thereby strengthen the homogeneous mixing effect of gas-liquid two-phase refrigerant.

In one embodiment, the number of the bent pipes is at least three, and the axes of the pair of punched holes on the three bent pipes intersect at the same point.

With the arrangement, when the axes of the opposite punching holes on the three bent pipes intersect at the same point, the refrigerant flows out from the opposite punching holes at high speed and can be converged to one point and generate strong impact collision, so that the gas-liquid two-phase refrigerant is mixed more uniformly.

In one embodiment, the number of the bent pipes is four, the four bent pipes are uniformly distributed at intervals, and the axes of the pair of punched holes on the two oppositely arranged bent pipes intersect.

So set up, divide into many flow paths with the refrigerant, again from the production impact collision of counter-punch outflow, can further strengthen the homogeneous mixing effect of gas-liquid two-phase refrigerant.

In one embodiment, the elbow comprises a straight section and a curved section, one end of the straight section is communicated with the inlet, and the other end of the straight section is communicated with the curved section; one end of the bent section, which is far away from the straight section, extends into the mixing chamber, and the hedging hole is positioned on the bent section.

So set up, the refrigerant is through the import department with higher speed inflow straight section, gets into the curved segment through straight section again, can take place to strike the collision with the wall of return bend earlier to produce the vortex, make the liquid refrigerant in each return bend and gaseous refrigerant mixture, again from the high-speed outflow of counterpunch hole evenly mixed once more.

In one embodiment, the bend point of the bend section is located outside the mixing section.

So set up, be convenient for process, reduce cost makes the space increase of the interior refrigerant impact clash each other of mixing chamber on the basis of save material, carries out gas-liquid refrigerant's mixture better.

In one embodiment, one end of the elbow pipe is connected with the orifice plate through any one of welding, riveting, screwing or buckling;

and/or the other end of the elbow is connected with the mixing part through any one of welding, riveting, screwing and buckling.

So set up, be convenient for processing between return bend, orifice plate and the mixing portion is connected.

The application still provides a distributor, includes above the reposition of redundant personnel structure.

In one embodiment, the distributor further comprises a distributing body, the distributing structure is installed in the distributing body, a flow hole is formed in one end, away from the pore plate, of the mixing part, an outlet is formed in the distributing body, and the flow hole is communicated with the outlet.

So arranged, the mixed refrigerant can flow from the through hole to the refrigerating system through the outlet.

Compared with the prior art, the refrigerant inlet device is provided with the pore plate, and the pore plate is provided with the plurality of inlets, so that the flow velocity of the refrigerant at the inlet can be increased due to the local contraction formed at the inlet; meanwhile, one end of each bent pipe extends into the mixing chamber, the plurality of pairs of punched holes are distributed in the mixing chamber in a gathering state, when the refrigerant flows into the bent pipes from the inlet, the gas-liquid mixed refrigerant can impact and collide with the wall surfaces of the bent pipes firstly in the process of flowing through the bent pipes due to the fact that the plurality of pipelines are the bent pipes, and therefore vortex flow is generated, and mixing of the liquid refrigerant and the gas refrigerant in each bent pipe is facilitated; and as the mixed refrigerants continue to flow in the bent pipes, the refrigerants in each bent pipe finally flow out of the offset holes and are converged in the mixing chamber, and the multiple offset holes are distributed in a gathering state, so that the refrigerants in different bent pipes can flow out at high speed from the offset holes to generate impact collision, the turbulence of the gas-liquid refrigerants is disturbed, and the gas-liquid two-phase refrigerants are further uniformly mixed.

Drawings

Fig. 1 is a schematic structural diagram of a shunt structure provided in the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a schematic cross-sectional view taken along line a-a in fig. 3.

Fig. 5 is a schematic structural diagram of a dispenser provided by the present invention.

Fig. 6 is a front view of fig. 5.

Fig. 7 is a schematic cross-sectional view taken along line B-B in fig. 6.

In the figure, 100, a shunt structure; 10. an orifice plate; 11. an inlet; 20. a mixing section; 21. a mixing chamber; 30. bending the pipe; 31. punching; 32. a straight section; 33. bending; 34. bending points; 35. a flow-through hole; 40. a dispenser; 41. a ligand is distributed; 411. and (7) an outlet.

Detailed Description

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, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention.

It will be understood 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 a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present invention provides a flow dividing structure 100, wherein the flow dividing structure 100 is installed in a distributor 40, so that the distributor 40 distributes uniformly mixed refrigerants to different flow paths, and the refrigerants in each flow path are completely evaporated, so as to achieve an optimal heat exchange effect and improve the working performance of a refrigeration system.

Generally, the refrigerant before entering the distributor 40 is a gas-liquid two-phase mixed refrigerant, and if the gas-liquid two-phase refrigerant is not uniformly mixed, the amount of liquid entering each flow path will be different, thereby reducing the refrigeration effect; if the liquid supply in the pipeline is insufficient, the refrigerant can be quickly evaporated into gas, and the heat exchange area can not play an effective role; if too much liquid is supplied in the pipeline, the liquid return phenomenon can occur, so that the liquid supply amount is correspondingly reduced by the throttling part in front of the distributor 40, and the liquid distribution is more uneven after the flow is reduced, thereby reducing the heat exchange performance and influencing the working performance of the whole refrigerating system.

Referring to fig. 1 to 4, a flow dividing structure 100 provided by the present application includes a hole plate 10, a mixing portion 20, and a plurality of bent pipes 30, wherein the hole plate 10 is provided with a plurality of inlets 11, the mixing portion 20 is provided therein with a mixing chamber 21, one end of each of the plurality of bent pipes 30 is respectively communicated with the corresponding inlet 11, and the other end thereof extends into the mixing chamber 21, so that the inlet 11 forms a local contraction, which can increase the flow velocity of a refrigerant at the inlet 11; moreover, the bent pipe 30 has the pair of punched holes 31 at one end extending into the mixing chamber 21, and the plurality of pair of punched holes 31 are distributed in the mixing chamber 21 in a gathering state, when the refrigerant flows into the bent pipe 30 from the inlet 11, because the plurality of pipelines are the bent pipes 30, the gas-liquid mixed refrigerant first collides with the wall surface of the bent pipe 30 in the process of flowing through the bent pipe 30, so that a vortex is generated, and the mixing of the liquid refrigerant and the gas refrigerant in each bent pipe 30 is facilitated; furthermore, as the mixed refrigerants continue to flow in the bent pipes 30, the refrigerants in the bent pipes 30 finally flow out from the opposed holes 31 and are merged in the mixing chamber 21, and since the plurality of opposed holes 31 are arranged in a gathered state, the refrigerants in different bent pipes 30 can flow out from the opposed holes 31 at a high speed to generate impact collision, so that the gas-liquid refrigerants are disturbed and disordered, and the gas-liquid two-phase refrigerants are further uniformly mixed.

Furthermore, an angle A is formed between the axis of the counter-punching hole 31 and the axis of the orifice plate 10, and the angle A is more than 0 degrees and less than 90 degrees, so that the refrigerant in each bent pipe 30 can generate impact collision when flowing out from the counter-punching hole 31 at a high speed, and the gas-liquid two-phase refrigerant is further uniformly mixed.

Preferably, the angle A between the axis of the counter-punching hole 31 and the axis of the orifice plate 10 is 30 degrees < A < 60 degrees, so that the refrigerant flowing out from the counter-punching hole 31 at high speed can generate stronger impact collision, and the uniform mixing effect of the gas-liquid two-phase refrigerant is enhanced. Of course, in other embodiments, the angle a formed between the axis of the opposed punch hole 31 and the axis of the orifice plate 10 may be other degrees, as long as the effect of generating impact collision to further uniformly mix the gas-liquid two-phase refrigerant is achieved, for example, the angle a may be 20 °, 25 °, or 65 °.

Referring to fig. 2 and 4, the number of the bent pipes 30 is at least three, and the axes of the opposite punched holes 31 on the three bent pipes 30 intersect at the same point, when the axes of the opposite punched holes 31 on the three bent pipes 30 intersect at the same point, the refrigerants flow out from the opposite punched holes 31 at high speed and can be converged to one point to generate strong impact collision, so that the gas-liquid two-phase refrigerants are mixed more uniformly.

Preferably, in this embodiment, the number of the bent pipes 30 is four, the four bent pipes 30 are uniformly arranged at intervals, and the axes of the opposite punched holes 31 on the two bent pipes 30 which are oppositely arranged intersect, so as to divide the refrigerant into four flow paths, and then the refrigerant flows out from the opposite punched holes 31 to generate impact collision, thereby further enhancing the uniform mixing effect of the gas-liquid two-phase refrigerant. Of course, in other embodiments, the number of the bent pipes 30 may be changed according to different requirements, as long as the same flow dividing and refrigerant mixing enhancing effects can be achieved, for example, the number of the bent pipes 30 may also be five, six or eight.

With reference to fig. 4, the bent pipe 30 includes a straight section 32 and a bent section 33, one end of the straight section 32 is connected to the inlet 11, and the other end is connected to the bent section 33; one end of the bent section 33, which is far away from the straight section 32, extends into the mixing chamber 21, and the opposite punching hole 31 is positioned on the bent section 33; the refrigerant is accelerated to flow into the straight section 32 through the inlet 11, then quickly enters the bent section 33 through the straight section 32, and is impacted and collided with the wall surface of the bent pipe 30, so that a vortex is generated, the liquid refrigerant and the gas refrigerant in each bent pipe 30 are mixed, and then flow out from the opposite punching holes 31 at a high speed to be uniformly mixed in the mixing chamber 21 again, so that the liquid distribution is uniform, the heat exchange performance is improved, and the heat exchange effect of the whole system is obviously improved.

Furthermore, the bending point 34 of the bending section 33 is located outside the mixing part 20, so that the processing is convenient, the cost is reduced, the space for collision of the refrigerants in the mixing chamber 21 due to mutual impact is increased on the basis of saving materials, and the uniform mixing of the gas-liquid refrigerants is better performed.

In the present application, one end of the elbow 30 is connected to the orifice plate 10 by any one of welding, riveting, screwing, or snapping; and/or, the other end of the bent pipe 30 is connected with the mixing part 20 by any one of welding, riveting, screwing and buckling.

Referring to fig. 5, the present application further provides a distributor 40 including the above flow dividing structure 100.

Further, referring to fig. 6-7, the distributor 40 further includes a distributing body 41, the flow dividing structure 100 is installed in the distributing body 41, one end of the mixing part 20 away from the orifice plate 10 is provided with a flow hole 35, the distributing body 41 is provided with an outlet 411, the flow hole 35 is communicated with the outlet 411, so that the mixed refrigerant can flow from the flow hole 35 to the refrigeration system through the outlet 411.

In this embodiment, after the flow dividing structure 100 is installed in the distributing body 41, the end of the distributing body 41 away from the outlet 411 is formed by a spinning or stamping process, so that the fatigue resistance and the corrosion resistance of each part are obviously improved.

This application can make the principle of refrigerant gas-liquid homogeneous mixing do: the gas-liquid two-phase mixed refrigerant can flow into the elbow 30 from the inlet 11, and the refrigerant can enter the elbow 30 at the inlet 11 in an accelerated manner due to the local contraction at the inlet 11; and will first impact and collide with the wall surface of the bend 30, thus generating a vortex, so that the liquid refrigerant and the gas refrigerant in each bend 30 are mixed; when the mixed refrigerants continue to circulate, the mixed refrigerants finally flow out of the hedging holes 31 and are converged in the mixing chamber 21, the hedging holes 31 are distributed in a gathering state, the refrigerants in different bent pipes 30 can flow out of the hedging holes 31 at a high speed to generate impact clash, so that the gas-liquid refrigerants are disturbed, the gas-liquid two-phase refrigerants are further uniformly mixed, the remixed refrigerants can flow out of the outlet 411 of the distribution body 41 through the flow through hole 35, and the heat exchange effect of the system is improved.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications to the above embodiments are within the scope of the claimed invention as long as they are within the spirit of the present invention.

Claims

1. The flow dividing structure (100) is characterized by comprising a pore plate (10), a mixing part (20) and a plurality of bent pipes (30), wherein the pore plate (10) is provided with a plurality of inlets (11), the mixing part (20) is internally provided with a mixing chamber (21), one ends of the bent pipes (30) are respectively communicated with the corresponding inlets (11), and the other ends of the bent pipes extend into the mixing chamber (21);

one end of the bent pipe (30) extending into the mixing chamber (21) is provided with a pair of punched holes (31), and the pair of punched holes (31) are distributed in the mixing chamber (21) in a gathering state.

2. The flow dividing structure (100) of claim 1, wherein the axis of the pair of punched holes (31) and the axis of the orifice plate (10) have an angle a therebetween, 0 ° < a < 90 °.

3. The flow dividing structure (100) of claim 2, wherein the axis of the pair of punched holes (31) and the axis of the orifice plate (10) have an angle a therebetween, 30 ° < a < 60 °.

4. The flow dividing structure (100) of claim 1, wherein the number of the bent tubes (30) is at least three, and the axes of the pair of punched holes (31) on the three bent tubes (30) intersect at the same point.

5. The flow dividing structure (100) according to claim 1, wherein the number of said bent pipes (30) is four, and said four bent pipes (30) are uniformly arranged at intervals, and the axes of said pair of punched holes (31) on two opposite bent pipes (30) intersect.

6. The flow dividing structure (100) of claim 1, wherein said elbow (30) comprises a straight section (32) and a curved section (33), one end of said straight section (32) being in communication with said inlet (11) and the other end being in communication with said curved section (33); one end, far away from the straight section (32), of the bent section (33) extends into the mixing chamber (21), and the pair of punched holes (31) are located on the bent section (33).

7. The flow dividing structure (100) of claim 6, wherein the bending point (34) of the bend section (33) is located outside the mixing section (20).

8. The flow dividing structure (100) of claim 1, wherein one end of the elbow (30) is connected with the orifice plate (10) by any one of welding, riveting, screwing or buckling;

and/or the other end of the bent pipe (30) is connected with the mixing part (20) through any one of welding, riveting, screwing and buckling.

9. A dispenser (40) comprising a flow distribution structure (100) according to any one of claims 1 to 8.

10. The distributor (40) according to claim 9, wherein the distributor (40) further comprises a distributing body (41), the flow dividing structure (100) is installed in the distributing body (41), a flow hole (35) is formed in one end, away from the orifice plate (10), of the mixing part (20), an outlet (411) is formed in the distributing body (41), and the flow hole (35) is communicated with the outlet (411).