Liquid distributor for air conditioner, heat exchange system and air conditioner

Abstract

The application relates to the technical field of fluid distribution, and discloses a liquid distributor, a heat exchange system and an air conditioner. The liquid distributor comprises a shell and a liquid distributor piece. The shell comprises a liquid distribution cavity and an inlet and an outlet located at opposite ends of the shell, and the inlet and the outlet are in communication with the liquid distribution cavity. The liquid distributor piece is arranged in the liquid distribution cavity and located between the inlet and the outlet. The liquid distributor piece comprises a plurality of through holes for fluid flow. The liquid distributor piece can deform. The deformed liquid distributor piece can easily deform according to the flow direction of the fluid flowing through the liquid distribution cavity, so as to adapt to the change of the fluid direction and improve the practicability of the liquid distributor piece. In addition, the deformed liquid distributor piece can change the shape of the through holes of the liquid distributor piece according to the flow and flow direction of the fluid flowing through the liquid distributor piece, so as to change the porosity of the liquid distributor piece and realize the rectification function of the fluid of the type that needs to be rectified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fluid distribution, for example to a distributor for an air conditioner, a heat exchange system and an air conditioner. BACKGROUND

[0002] At present, when the gas-liquid mixed two-phase refrigerant flows into the heat exchanger, the heat exchange effect of the heat exchanger is poor due to uneven mixing of the gas-liquid two-phase refrigerant. The flow pattern of the fluid entering the distributor includes the two-phase state of the refrigerant entering the distributor, including but not limited to stratified flow, slug flow, annular flow or bubble flow. Among them, stratified flow and slug flow are easy to cause uneven distribution of the distributor, and annular flow and bubble flow are more conducive to uniform distribution of the distributor.

[0003] In related technologies, a curved surface flow distribution element is arranged in the distributor, and the curved surface flow distribution element includes a plurality of flow distribution through holes. When the fluid flows through the curved surface flow distribution element and passes through the plurality of flow distribution through holes, the large bubbles in the fluid are broken into small bubbles, and then the flow pattern entering the distributor is destroyed and is rectified into a bubble flow pattern. The bubble flow pattern is conducive to uniform distribution, and thus the two-phase refrigerant is uniformly mixed.

[0004] In the disclosed implementation process, the distributor has the following problems:

[0005] Arranging the curved surface flow distribution element inside the distributor can cause pressure loss of the fluid. When the fluid entering the distributor is in a single-phase state or in an annular flow pattern or a bubble flow pattern of a two-phase state, the flow distribution is not needed, and the arrangement of the internal curved surface flow distribution element causes design redundancy. Moreover, when the fluid flows reversely, for example, in a heat pump air conditioning system, the fluid flows into the distributor cavity from each branch and then flows out from the main road, and the arrangement of the distributor device can also cause unnecessary pressure loss.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a brief overview is given below. The summary is not an overall description of the application, nor is it intended to determine key / important elements or delineate the scope of the embodiments. It is only as a prelude to the detailed description below.

[0008] The disclosed embodiments provide a distributor for an air conditioner, a heat exchange system and an air conditioner, which improve the mixing uniformity of the gas-liquid two-phase mixed refrigerant, reduce the pressure loss of the fluid, and thus improve the heat exchange efficiency of the heat exchanger.

[0009] In some embodiments, a liquid distributor is provided, comprising: a housing, the housing comprising a liquid distribution cavity and an inlet and an outlet located at opposite ends of the housing, the inlet and the outlet being in communication with the liquid distribution cavity; a liquid distribution piece arranged in the liquid distribution cavity between the inlet and the outlet, the liquid distribution piece comprising a plurality of through holes for fluid flow; wherein the liquid distribution piece is capable of deformation.

[0010] Optionally, the liquid distribution piece comprises: a fixing piece connected to a cavity wall of the liquid distribution cavity; and a mesh piece connected to one end of the fixing piece, the mesh piece comprising a plurality of through holes, the mesh piece being capable of deformation.

[0011] Optionally, the liquid distribution piece further comprises: a plurality of support pieces arranged in the mesh piece, the plurality of support pieces being distributed at intervals, and adjacent two support pieces being connected by the mesh piece; wherein the support pieces and the fixing piece are connected by part of the mesh piece.

[0012] Optionally, the mesh piece comprises a cavity with an open end, and the fixing piece is connected to the open end of the mesh piece; wherein the fixing piece and the plurality of support pieces are annular structures; along the open end of the mesh piece to the free end of the mesh piece, the plurality of support pieces are distributed at intervals on the side wall of the mesh piece, and the area of the inner ring opening of the plurality of support pieces gradually decreases; the outer ring area of the support piece with the largest inner ring opening area among the plurality of support pieces is smaller than the ring opening area of the inner ring opening of the fixing piece.

[0013] Optionally, the structure of the fixing piece is a circular ring structure or an elliptical ring structure; and the structure of the support piece is a circular ring structure or an elliptical ring structure.

[0014] Optionally, the porosity of the liquid distribution piece is in the range of 65% to 80%; and / or the material of the liquid distribution piece comprises a metal material, a nylon material or a resin material.

[0015] Optionally, the position where the liquid distribution piece is connected to the inner wall of the housing is marked as a first position; the cavity wall on the side of the inlet is marked as a second position, the distance between the first position and the second position is L1; the cavity wall on the side of the outlet is marked as a third position, the distance between the first position and the third position is L2; the maximum length of the liquid distribution piece in the unfolded state is L, ΔL1=L1-L, ΔL2=L2-L; wherein L1>L, L2>L, ΔL1≥2mm, ΔL2≥2mm.

[0016] Optionally, in the process of fluid entering from the inlet of the housing and flowing out from the outlet, the force applied to the liquid distribution piece by the fluid is F1, and the gravity of the liquid distribution piece is G, then the force F2=F1-G acting on the liquid distribution piece; in the case of 0≤F2<F ０ , the liquid distribution piece is in the stacked state; in the case of F2≥F ０ , the liquid distribution piece is in the unfolded state; wherein F ０ is the force threshold.

[0017] In some embodiments, a heat exchange system is provided, comprising: a heat exchanger; and the distributor of any of the above embodiments, in communication with the heat exchanger.

[0018] In some embodiments, an air conditioner is provided, comprising: an outdoor unit; and the distributor of any of the above embodiments, arranged in the outdoor unit; or the heat exchange system of any of the above embodiments.

[0019] The distributor for the air conditioner, the heat exchange system and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The distributor provided by the embodiments of the present disclosure comprises: a shell and a distributor. The shell comprises a distributor cavity and an inlet and an outlet located at opposite ends of the shell, and the inlet and the outlet are in communication with the distributor cavity. The distributor is arranged in the distributor cavity and located between the inlet and the outlet. The distributor comprises a plurality of through holes for fluid flow. The distributor can deform. By arranging the shell, the shell comprises the distributor cavity and the inlet and the outlet located at opposite ends of the shell, and the inlet and the outlet are in communication with the distributor cavity, so that the fluid can flow into the distributor cavity of the shell from the inlet and flow out from the outlet. By arranging the distributor, the distributor is arranged in the distributor cavity and located between the inlet and the outlet, and the distributor comprises a plurality of through holes, so that when the fluid flows through the distributor after flowing into the distributor cavity from the inlet, the fluid is divided into a plurality of branches and passes through the plurality of through holes, the large bubbles in the fluid are broken up to form a plurality of small bubbles, and the stratified flow or the slug flow of the fluid is converted into a bubbly flow, so that the two-phase refrigerant of the gas-liquid mixture is easily mixed uniformly, and the heat exchange efficiency of the heat exchanger is improved.

[0021] Further, by arranging the distributor that can deform, the distributor is easily deformed according to the flow direction of the fluid flowing through the distributor cavity, so as to adapt to the case that the fluid changes direction, and the practicability of the distributor is improved. Moreover, by arranging the distributor that can deform, when the distributor deforms according to the flow direction and flow rate of the fluid flowing through the distributor, the shape of the through holes of the distributor changes, and the porosity of the distributor changes, so as to realize the rectification function for the fluid of the type that needs to be rectified.

[0022] The foregoing general description and the following description are only exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings, which are only illustrative and explanatory, and do not constitute limitation to the embodiments. The elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0024] Figure 1 FIG. 1 is a structural schematic diagram of a distributor provided by the embodiments of the present disclosure;

[0025] Figure 2 yes Figure 1 A top view of the liquid dispensing member in the illustrated embodiment;

[0026] Figure 3 This is a schematic diagram of a structure in which the fluid flow rate in the liquid separation element provided by an embodiment of the present disclosure is large and flows in a positive direction;

[0027] Figure 4 yes Figure 3 A schematic structural diagram of the liquid separation component in the expanded state in the embodiment shown;

[0028] Figure 5 yes Figure 4 A front view of the liquid dispensing member in the expanded state in the illustrated embodiment;

[0029] Figure 6 This is a schematic diagram of a structure in which the fluid flow rate in the liquid separation element provided by an embodiment of the present disclosure is small and flows in a positive direction;

[0030] Figure 7 yes Figure 6 A schematic structural diagram of the liquid dispensing member in a folded state in the embodiment shown;

[0031] Figure 8 yes Figure 7 A front view of the liquid dispensing member in the folded state in the illustrated embodiment;

[0032] Figure 9 This is a schematic structural diagram of the reverse flow of fluid in the liquid separation element provided by an embodiment of the present disclosure;

[0033] Figure 10 yes Figure 9 A schematic structural diagram of the liquid separation component in the expanded state in the embodiment shown;

[0034] Figure 11 yes Figure 10 A front view of the liquid dispensing member in the expanded state in the illustrated embodiment;

[0035] Figure 12 Schematic diagram of the structure and dimensions of the liquid dispenser provided in an embodiment of the present disclosure;

[0036] Figure 13 Schematic diagram of the force acting on the liquid dispenser provided by an embodiment of the present disclosure;

[0037] Figure 14 is a structural schematic diagram of a heat exchange system provided by an embodiment of the present disclosure;

[0038] Figure 15 It is a structural diagram of the air conditioner provided in an embodiment of the present disclosure.

[0039] Reference numerals:

[0040] 1 distributor; 2 heat exchange system; 3 outdoor unit;

[0041] 10 housing; 101 inlet; 102 outlet; 103 distribution cavity;

[0042] 20 distributor; 201 fixing member; 202 mesh member; 203 supporting member;

[0043] 30 compressor; 40 evaporator; 50 flow meter; 60 capillary tube; 70 condenser. DETAILED DESCRIPTION

[0044] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the attached drawings are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0045] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to indicating the orientation or positional relationship, the above-mentioned part of the term can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0047] In addition, the terms "set", "connected", and "fixed" should be understood broadly. For example, "connected" can be fixed connection, detachable connection, or integral configuration; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection via an intermediate medium, or internal communication between two devices, elements, or components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific circumstances.

[0048] Unless otherwise specified, the term "plurality" means two or more.

[0049] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B means A or B.

[0050] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0051] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0052] The two-phase refrigerant entering the distributor 1 includes but is not limited to stratified flow, slug flow, annular flow, or bubble flow. Among them, the stratified flow and the slug flow are easy to cause uneven distribution of the distributor 1, and the annular flow and the bubble flow are more conducive to uniform distribution of the distributor 1. The stratified flow and the slug flow occur when the flow entering the distributor 1 is small, and the annular flow and the bubble flow occur when the flow is large.

[0053] Therefore, when the flow through the distributor 1 is small, the fluid is in a stratified flow and a slug flow at this time, and the distributor 1 needs to rectify the fluid to make the gas-liquid two-phase fluid mixture uniform. When the flow through the distributor 1 is large, the fluid is in an annular flow and a bubble flow at this time, and the distributor 1 does not need to rectify the fluid.

[0054] In some embodiments, in combination with Figure 1 、 Figure 3 、 Figure 6 、 Figure 9 、 Figure 12 and Figure 13 , a distributor 1 is provided, comprising a shell 10 and a distribution piece 20. The shell 10 comprises a distribution cavity 103 and an inlet 101 and an outlet 102 located at opposite ends of the shell 10, and the inlet 101 and the outlet 102 are in communication with the distribution cavity 103. The distribution piece 20 is arranged in the distribution cavity 103 and located between the inlet 101 and the outlet 102. The distribution piece 20 comprises a plurality of through holes for flow. Among them, the distribution piece 20 can be deformed.

[0055] In this embodiment, by setting the shell 10, the shell 10 includes a distribution cavity 103 and an inlet 101 and an outlet 102 located at opposite ends of the shell 10, both of which are in communication with the distribution cavity 103, so that the fluid can flow into the distribution cavity 103 of the shell 10 from the inlet 101 and flow out through the outlet 102. By setting the distribution piece 20, the distribution piece 20 is arranged in the distribution cavity 103 between the inlet 101 and the outlet 102, and the distribution piece 20 includes a plurality of through holes, so that when the fluid flows through the distribution piece 20 after flowing into the distribution cavity 103 from the inlet 101, the fluid is divided into a plurality of branches passing through the plurality of through holes, the large bubbles in the fluid are broken up to form a plurality of small bubbles, and the stratified flow or the slug flow of the fluid is converted into a bubbly flow, so that the two-phase refrigerant mixed by the gas-liquid mixture is easily mixed uniformly, thereby improving the heat exchange efficiency of the heat exchanger.

[0056] Further, by setting the deformable distribution piece 20, the distribution piece 20 is easily deformed according to the flow direction of the fluid flowing through the distribution cavity 103 to adapt to the change of the fluid direction, thereby improving the practicability of the distribution piece 20. Moreover, by setting the deformable distribution piece 20, the shape of the through hole of the distribution piece 20 changes when the distribution piece 20 deforms according to the flow direction and flow rate of the fluid flowing through the distribution piece 20, thereby changing the porosity of the distribution piece 20 to achieve the rectification function for the fluid of the type that needs to be rectified, so that the fluid mixed by the gas-liquid two-phase mixture is uniformly mixed.

[0057] Optionally, in combination with Figure 1 , Figure 3 , Figure 6 , Figure 9 , Figure 12 and Figure 13 , the first end of the opposite ends of the shell 10 includes one branch.

[0058] Optionally, in combination with Figure 1 , Figure 3 , Figure 6 , Figure 9 , Figure 12 and Figure 13 , the second end of the opposite ends of the shell 10 includes a plurality of branches, and the pore size of the plurality of branches of the second end is smaller than the pore size of the branch of the first end.

[0059] Specifically, the end of the shell 10 through which the fluid flows into the distribution cavity 103 from the outside of the shell 10 is the inlet 101. The end of the shell 10 through which the fluid flows out of the distribution cavity 103 to the outside of the shell 10 is the outlet 102.

[0060] Specifically, the flow of the fluid from the first end of the shell 10 to the second end of the shell 10 is forward flow, and the flow of the fluid from the second end of the shell 10 to the first end is reverse flow.

[0061] Optionally, in combination with Figures 1 to 13 As shown in the figure, the liquid distributor 20 comprises a fixing member 201 and a mesh member 202. The fixing member 201 is connected with the cavity wall of the liquid distribution cavity 103. The mesh member 202 is connected with the fixing member 201 at one end. The mesh member 202 comprises a plurality of through holes. The mesh member 202 is deformable.

[0062] In this embodiment, by setting the fixing member 201 and connecting the fixing member 201 with the cavity wall of the liquid distribution cavity 103, the liquid distributor 20 is fixed with the cavity wall of the liquid distribution cavity 103, and then the liquid distributor 20 is fixed with the shell 10. By setting the mesh member 202 comprising a plurality of through holes, when the fluid flows through the mesh member 202, the mesh member 202 can break up the large bubbles in the fluid into small bubbles, so that the gas-liquid two-phase refrigerant is mixed uniformly. Moreover, by setting the deformable mesh member 202, the liquid distributor 20 can be deformed, and then the mesh member 202 can be deformed according to the flow direction and flow rate of the fluid flowing through the mesh member 202, so as to change the porosity of the mesh member 202, and then to realize the flow regulation function for the fluid of the type that needs to be regulated.

[0063] Optionally, in combination with Figures 1 to 13 As shown in the figure, the liquid distributor 20 further comprises a plurality of support members 203. The plurality of support members 203 are arranged on the mesh member 202. The plurality of support members 203 are distributed at intervals, and two adjacent support members 203 are connected by the mesh member 202. Among them, the support member 203 and the fixing member 201 are connected by part of the mesh member 202.

[0064] In this embodiment, by setting the plurality of support members 203 and connecting two adjacent support members 203 by the mesh member 202, the mesh member 202 is unfolded, so that the flow rates of the fluid flowing through the plurality of through holes of the mesh member 202 are the same, and then the liquid distributor 20 realizes the flow regulation function. Moreover, by setting the plurality of support members 203 to be distributed at intervals, when the mesh member 202 is deformed according to the flow rate and flow direction of the fluid, the plurality of support members 203 are driven to move in parallel, so that the porosities of each part of the mesh member 202 change the same when deformed, so as to improve the degree of uniform mixing of the gas-liquid two-phase fluid.

[0065] Optionally, in combination with Figure 1 , Figures 3 to 13 As shown in the figure, the mesh member 202 comprises a cavity with one end open, and the fixing member 201 is connected with the open end of the mesh member 202. Among them, the fixing member 201 and the plurality of support members 203 are annular structures. Along the open end of the mesh member 202 to the free end of the mesh member 202, the plurality of support members 203 are distributed at intervals on the side wall of the mesh member 202, and the area of the inner ring opening of the plurality of support members 203 gradually decreases. The outer ring area of the support member 203 with the largest inner ring opening area in the plurality of support members 203 is smaller than the ring opening area of the inner ring opening of the fixing member 201.

[0066] In this embodiment, by setting the mesh 202 with a cavity with one open end, and connecting the fixing member 201 with the open end of the mesh 202, the fluid flows through the cavity of the mesh 202 from the open end to the free end of the mesh 202 after entering the distributor 1 from the inlet 101, and then flows out of the outlet 102 of the distributor 1, so as to realize the flow regulation of the fluid by the distributor 20, and make the gas-liquid two-phase mixture in the distributor 20 uniform. Further, by setting the fixing member 201 and the plurality of support members 203 as a ring structure, the fixing member 201 and the plurality of support members 203 support the cavity of the mesh 202 to be open, so as to realize the flow of the fluid through the distributor 20, and the flow regulation of the fluid by the distributor 20, and make the gas-liquid two-phase mixture in the distributor 20 uniform.

[0067] Further, by spacing the plurality of support members 203 along the open end of the mesh 202 to the free end of the mesh 202, the plurality of support members 203 are distributed on the side wall of the mesh 202, the area of the inner ring opening of the plurality of support members 203 gradually decreases, and the area of the outer ring of the support member 203 with the largest inner ring opening area of the plurality of support members 203 is smaller than the area of the inner ring opening of the fixing member 201, so that the support member 203 farther from the open end can pass through the support member 203 closer to the open end among the adjacent two support members 203, and all the support members 203 can pass through the fixing member 201. To realize the deformation of the distributor 20 according to the flow direction of the fluid, so that when the flow direction of the fluid changes, the distributor 20 can deform, and the fluid still flows from the open end of the distributor 20 to the free end of the distributor 20, thereby reducing the pressure loss caused by the distributor 20 after the flow direction of the fluid changes.

[0068] Specifically, one end of the distributor 20 is connected and fixed with the cavity wall of the distribution cavity 103 through the fixing member 201, and the other end of the distributor 20 is a free end. The free end can move up and down along the cavity wall of the distribution cavity 103 under the action of weight and pressure, the mesh 202 can be folded, and thus the side of the distributor 20 can be folded. When the distributor 20 is unfolded, the porosity of the distributor 20 is small, at this time the resistance of the distributor 20 is small, and the fluid can flow through the distributor 20 more smoothly; when the distributor 20 is folded, the porosity of the distributor 20 is large, and the distributor 20 can play a role of regulating the flow pattern of the fluid from the stratified flow pattern and the elasticoil pattern to the bubble flow pattern.

[0069] Optionally, the structure of the fixing member 201 is a circular ring structure or an elliptical ring structure. The structure of the support member 203 is a circular ring structure or an elliptical ring structure.

[0070] In the embodiment, the structure of the fixing member 201 and the support member 203 is circular or elliptical, which improves the smoothness of the support member 203 passing through the other support member 203, the smoothness of the support member 203 passing through the fixing member 201, and the deformation of the distribution member 20, so that the distribution member 20 deforms according to the flow direction and flow rate of the fluid flowing through the distribution member 20, thereby facilitating the distribution member 20 to straighten the fluid flowing through the distribution member 20, improving the mixing degree of the gas-liquid two-phase of the fluid, and reducing the pressure loss of the fluid that does not need to be straightened.

[0071] Optionally, the porosity of the distribution member 20 is 65% to 80%.

[0072] The porosity of the material refers to the percentage of the pore volume in the bulk material to the total volume of the material in the natural state, and the calculation formula of the porosity is:

[0073]

[0074] P is the porosity of the material, V0 is the volume or apparent volume of the material in the natural state (unit: cm 3 or m 3 ), V is the absolute compact volume of the material (unit: cm 3 or m 3 ), ρ0 is the volume density of the material (unit: g / cm 3 or kg / m 3 ), and ρ is the density of the material (unit: g / cm 3 or kg / m 3 ).

[0075] In the embodiment, the porosity of the distribution member 20 is set in a range, so that the distribution member 20 straightens the fluid with different flow rates to different degrees, thereby improving the uniformity of the mixing of the gas-liquid two-phase of the fluid.

[0076] Specifically, as shown in Figure 14 , the determination step of the porosity includes:

[0077] S1, connecting the liquid distributor 1 provided with the distribution member 20 with a porosity of x1 to the inlet of the evaporator 40 of the heat exchange system 2.

[0078] S2, adjusting the heat exchange system 2 to run different working conditions, and recording the unevenness corresponding to each working condition.

[0079] S3, in the case that the non-uniformity of each working condition is less than T, adding x1 to the porosity set. And replacing the distributor 20, the porosity x2 of the replaced distributor 20 is less than the porosity x1 of the replaced distributor 20, entering the regulation heat exchange system 2 to run different working conditions, and recording the non-uniformity corresponding to each working condition.

[0080] S4, in the case that the non-uniformity of each working condition is not less than T, judging whether the porosity set is empty. If the porosity set is empty, replacing the distributor 20, the porosity x2 of the replaced distributor 20 is less than the porosity x1 of the replaced distributor 20, and entering the regulation heat exchange system 2 to run different working conditions, and recording the non-uniformity corresponding to each working condition. If the porosity set is not empty, selecting the minimum porosity in the porosity set as the final porosity.

[0081] Specifically, the final porosity is the minimum value of the porosity satisfying the following two conditions.

[0082] Condition one: making the non-uniformity of each working condition less than T.

[0083] Condition two: realizing the distributor 1 to convert the fluid in stratified flow or slug flow into the fluid in annular flow or bubbly flow.

[0084] Specifically, in combination with Figure 14 It is shown that the non-uniformity of the distributor 1 represents the dispersion degree of the branch flow. The non-uniformity of the distributor 1 is:

[0085]

[0086] Wherein, S is the non-uniformity, q i is the flow of each branch of the second end (measured by the flow meter 50M-1 to M-n of each branch), i is 1, 2…n; q' is the average value of the branch flow, and n is the number of branches. The smaller the value of S, the greater the uniformity of the fluid in the distributor 1. When the value of S is less than or equal to T, it is considered that the distributor 1 is evenly distributed.

[0087] Optionally, the material of the distributor 20 includes metal material, nylon material or resin material.

[0088] In this embodiment, the material of the distribution member 20 includes a metal material, a nylon material, or a resin material, the fixing member 201 of the distribution member 20 is used to fix the distribution member 20, the fixed support member 203 of the distribution member 20 is used to support the mesh member 202 to form a cavity, and then the fluid flows into the cavity from the opening end and flows out from the free end. The mesh member 202 can deform to deform the distribution member 20 with the flow and flow direction of the fluid, so as to break up large bubbles in the fluid into small bubbles, improve the uniformity of gas and liquid in the gas-liquid two-phase mixed fluid, and reduce the pressure loss of the fluid. Moreover, the support member 203, the fixing member 201, and the mesh member 202 are not easy to be damaged, the service life of the distribution member 20 is prolonged, and the practicability of the distributor 1 is improved.

[0089] Exemplarily, the materials of the support member 203 and the fixing member 201 include but are not limited to a stainless steel material, a nylon material, or a resin material.

[0090] Specifically, the mesh member 202 includes but is not limited to a wire mesh or a porous material.

[0091] Exemplarily, the mesh member 202 includes but is not limited to a metal mesh member 202, a nylon mesh member 202, or a resin mesh member 202.

[0092] Optionally, the shape of the through hole of the mesh member 202 includes but is not limited to a circular through hole, an elliptical through hole, a square through hole, or a rhombic through hole.

[0093] Optionally, the porosity of the distribution member 20 ranges from 65% to 80%, and the material of the distribution member 20 includes a metal material, a nylon material, or a resin material.

[0094] In this embodiment, the porosity of the distribution member 20 is used to regulate the flow of the fluid to different degrees to improve the uniformity of the gas-liquid two-phase mixed fluid. The material of the distribution member 20 includes a metal material, a nylon material, or a resin material, the fixing member 201 of the distribution member 20 is used to fix the distribution member 20, the fixed support member 203 of the distribution member 20 is used to support the mesh member 202 to form a cavity, and then the fluid flows into the cavity from the opening end and flows out from the free end. The mesh member 202 can deform to deform the distribution member 20 with the flow and flow direction of the fluid, so as to break up large bubbles in the fluid into small bubbles, improve the uniformity of gas and liquid in the gas-liquid two-phase mixed fluid, and reduce the pressure loss of the fluid. Moreover, the support member 203, the fixing member 201, and the mesh member 202 are not easy to be damaged, the service life of the distribution member 20 is prolonged, and the practicability of the distributor 1 is improved.

[0095] Optionally, the position where the liquid distributor 20 is connected to the inner wall of the shell 10 is marked as the first position. The position of the cavity wall on the side of the inlet 101 is marked as the second position, and the distance between the first position and the second position is L1. The position of the cavity wall on the side of the outlet 102 is marked as the third position, and the distance between the first position and the third position is L2. The maximum length of the liquid distributor 20 in the unfolded state is L, ΔL1=L1-L, and ΔL2=L2-L. Wherein, L1>L, L2>L, ΔL1≥2mm, and ΔL2≥2mm.

[0096] In this embodiment, by setting L1>L and ΔL1≥2mm, the maximum length of the liquid distributor 20 in the unfolded state is less than the distance from the position where the liquid distributor 20 is fixed to the inner wall of the shell 10 to the cavity wall on the side of the inlet 101. When the fluid flows through the liquid distributor 20 and the liquid distributor 20 is fully opened, the fluid has sufficient space to flow out when the fluid flows from the free end of the liquid distributor 20 to the side of the inlet 101 of the shell 10, avoiding the fluid flowing out of the liquid distributor 20 colliding with the inner wall of the shell 10, reducing noise, and reducing the pressure loss of the fluid.

[0097] And by setting L2>L and ΔL2≥2mm, the maximum length of the liquid distributor 20 in the unfolded state is less than the distance from the position where the liquid distributor 20 is fixed to the inner wall of the shell 10 to the cavity wall on the side of the outlet 102. When the fluid flows through the liquid distributor 20 and the liquid distributor 20 is fully opened, the fluid has sufficient space to flow out when the fluid flows from the free end of the liquid distributor 20 to the side of the outlet 102 of the shell 10, avoiding the fluid flowing out of the liquid distributor 20 colliding with the inner wall of the shell 10, reducing noise, and reducing the pressure loss of the fluid.

[0098] Optionally, in combination with Figure 13 As shown in the figure, during the process of fluid entering from the inlet 101 of the shell 10 and flowing out from the outlet 102, the force applied to the liquid distributor 20 by the fluid is F1, and the gravity of the liquid distributor 20 is G, so the force F2=F1-G is applied to the liquid distributor 20. In the case of 0≤F2<F ０ , the liquid distributor 20 is in the stacked state. In the case of F2≥F ０ , the liquid distributor 20 is in the unfolded state. Wherein, F ０ is the force threshold.

[0099] In this embodiment, the force threshold F ０ is the minimum force required for the liquid distributor 1 to be fully unfolded. When the liquid distributor 1 is placed vertically, the liquid distributor 20 is subjected to the vertical downward gravity G, and the liquid distributor 20 is also subjected to the vertical force F1 applied by the fluid flowing through the liquid distributor 20. The force F2=F1-G is applied to the liquid distributor 20. In the case of 0≤F2<F ０ , that is, F1０ , the liquid separator 20 is in a stacked state. At this time, the fluid flow through the liquid separator 1 is small, and the porosity of the liquid separator 20 becomes larger, thereby improving the uniformity of mixing the gas-liquid two-phase refrigerant. ０ In the case of F1>G+F ０ When the liquid separator 20 is in the expanded state, the fluid flow through the liquid separator 1 is relatively large, and the porosity of the liquid separator 20 becomes smaller, thereby reducing the pressure loss caused to the fluid that does not need to be rectified.

[0100] Specifically, when no fluid flows through the liquid dispenser 1 , the liquid dispensing member 20 is in a fully expanded state under the action of gravity G.

[0101] For example, with the opposite direction of gravity as the positive direction, the inlet 101 of the liquid separator 1 is at the lower end in the height direction, and the outlet 102 of the liquid separator 1 is at the upper end in the height direction. When the fluid flows into the liquid separation chamber 103 from the inlet 101 of the liquid separator 1, flows through the liquid separation member 20 and flows out of the liquid separation chamber 103 from the outlet 102, the liquid separation member 20 is subjected to the downward gravity G and the upward force F1 exerted by the fluid, that is, the force exerted on the liquid separation member 20 is F2=F1-G. When F2≥F ０ In the case of F1>G+F ０ When the force on the liquid separation component 20 reaches the force threshold, the liquid separation component 20 is fully expanded, and the porosity of the liquid separation component 20 becomes smaller, thereby reducing the pressure loss caused to the fluid. <F ０ In the case of F1 <G+F ０ At this time, the fluid flow rate flowing through the liquid separator 20 is small, and the fluid needs to be rectified. The liquid separator 20 is in a stacked state, and the porosity of the liquid separator 20 becomes larger, thereby breaking up the large bubbles in the fluid into small bubbles, so as to achieve improved mixing uniformity of the gas-liquid two-phase fluid.

[0102] When the fluid is reversed, the fluid flows from the outlet 102 of the liquid separator 1 into the liquid separation chamber 103, flows through the liquid separation member 20 and flows out of the liquid separation chamber 103 from the inlet 101. The liquid separation member 20 is subjected to the downward gravity and the force exerted by the downward fluid, that is, the force exerted on the liquid separation member 20 is F2=|-F1-G|=|F1|+|G|, that is, |F1|+|G|≥F ０ When the fluid flowing through the liquid separator 20 is reversed, the support member 203 of the liquid separator 20 passes through the fixing member 201, thereby realizing the deformation of the liquid separator 20, and deforming to a fully expanded state, the porosity of the liquid separator 20 becomes smaller, thereby reducing the pressure loss caused to the fluid. Specifically, |F1|+|G|≥F can be achieved by changing the gravity of the liquid separator 20. ０ .

[0103] Optionally, F ０The value range of F includes 0.01 to 0.1 (unit: Newton). F ０ The specific values of F include: 0.01 N, 0.05 N, and 0.1 N.

[0104] In some embodiments, in combination with Figure 14 As shown in FIG. 10, a heat exchange system 2 is provided, comprising: a heat exchanger and the distributor 1 in any of the above embodiments. The distributor 1 in any of the above embodiments is in communication with the heat exchanger.

[0105] In this embodiment, by setting the distributor 1 in communication with the heat exchanger, the distributor 1 can improve the uniformity of gas-liquid mixing in the gas-liquid two-phase refrigerant flowing into the heat exchanger, so as to improve the heat exchange efficiency of the heat exchanger, and further improve the heat exchange efficiency of the heat exchange system 2. Moreover, when the refrigerant in the heat exchanger flows reversely, the distributor 1 is subjected to an opposite force and the distributor 1 deforms, so as to reduce the pressure loss caused by the setting of the distributor 1, and further improve the heat exchange efficiency of the heat exchange system 2.

[0106] Specifically, the compressor 30, the condenser 70, the capillary tube 60, the flow meter 50, the distributor 1, and the evaporator 40 are connected in sequence to form a refrigerant flow path, and the refrigerant flowing out of the evaporator 40 returns to the compressor 30, thereby forming a refrigerant circuit. In order to realize the normal operation of the entire heat exchange system 2, and by setting the distributor 1 to improve the uniformity of gas-liquid mixing in the gas-liquid two-phase refrigerant flowing into the heat exchanger, the heat exchange efficiency of the heat exchanger is improved, and the heat exchange efficiency of the heat exchange system 2 is further improved.

[0107] In some embodiments, an air conditioner is provided, comprising: an outdoor unit 3 and the distributor 1 in any of the above embodiments. The distributor 1 in any of the above embodiments is arranged in the outdoor unit 3.

[0108] In this embodiment, by arranging the distributor 1 in the outdoor unit 3, the distributor 1 can improve the uniformity of gas-liquid mixing in the gas-liquid two-phase refrigerant flowing into the refrigerant pipeline of the outdoor unit 3, so as to improve the heat exchange efficiency of the outdoor unit 3. Moreover, when the refrigerant in the refrigerant pipeline flows reversely, the distributor 1 is subjected to an opposite force and the distributor 1 deforms, so as to reduce the pressure loss caused by the setting of the distributor 1, and further improve the heat exchange efficiency of the outdoor unit 3.

[0109] In some embodiments, in combination with Figure 15 As shown in FIG. 10, an air conditioner is provided, comprising: an outdoor unit 3 and the heat exchange system 2 in the above embodiments.

[0110] In this embodiment, by setting the heat exchange system 2, the distributor 1 in the heat exchange system 2 can improve the uniformity of the gas-liquid mixture in the gas-liquid two-phase refrigerant flowing into the heat exchanger, so as to improve the heat exchange efficiency of the heat exchanger, and further improve the heat exchange efficiency of the heat exchange system 2. Moreover, when the refrigerant in the heat exchanger flows reversely, the distributor 1 in the distributor 1 is subjected to the opposite force and further realizes the deformation of the distributor 1, so as to reduce the pressure loss caused by setting the distributor 1, and further improve the heat exchange efficiency of the heat exchange system 2.

[0111] The above description and drawings suffice to fully illustrate the embodiments of the present disclosure to enable a person skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations can be changed. Parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A distributor for an air conditioner, characterized by, include: The shell includes a liquid separation chamber and an inlet and an outlet located at opposite ends of the shell, and the inlet and the outlet are both connected to the liquid separation chamber; A liquid separation member is disposed in the liquid separation chamber, between the inlet and the outlet, and includes a plurality of through holes for flow; wherein the liquid separation member is deformable; The liquid-separating member includes: a fixing member, a plurality of supporting members and a mesh member, one end of the liquid-separating member is connected and fixed to the cavity wall of the liquid-separating cavity through the fixing member, and the other end of the liquid-separating member is a free end, and the fixing member is connected to the open end of the mesh member; the fixing member and the plurality of supporting members are both annular structures; the supporting member and the fixing member are connected by a portion of the mesh member; along the open end of the mesh member to the free end of the mesh member, the plurality of supporting members are spaced apart and distributed on the side wall of the mesh member, and the area of ​​the inner ring openings of the plurality of supporting members gradually decreases; the mesh member includes a plurality of through holes, and the mesh member can be deformed; the outer ring area of ​​the support member with the largest inner ring opening area among the plurality of supporting members is smaller than the ring opening area of ​​the inner ring opening of the fixing member; The position where the liquid-dispensing element is connected to the inner wall of the housing is marked as the first position; the cavity wall on the inlet side is marked as the second position, and the distance between the first position and the second position is L1; the cavity wall on the outlet side is marked as the third position, and the distance between the first position and the third position is L2; ​​the maximum length of the liquid-dispensing element in the expanded state is L, where L1>L and L2>L; In the process of fluid entering from the inlet of the shell and flowing out from the outlet, with the opposite direction of gravity as the positive direction, the force exerted by the fluid on the liquid separation component is F1, and the gravity on the liquid separation component is G, then the force on the liquid separation component is F2=F1-G; when 0≤F2 <F ０ In the case of F2≥F ０ In the case of , the dispensing element is in the expanded state; where F ０ is the stress threshold; the porosity of the liquid dispensing component when it is unfolded is smaller than the porosity of the liquid dispensing component when it is folded.

2. The liquid dispenser of claim 1, wherein The structure of the fixing member is a circular ring structure or an elliptical ring structure; The structure of the support member is a circular ring structure or an elliptical ring structure.

3. The liquid dispenser according to claim 1 or 2, characterized in that The porosity of the dispensing element is in the range of 65% to 80%; and / or The materials of the dispensing parts include metal, nylon or resin.

4. The liquid dispenser according to claim 1 or 2, characterized in that: △L1=L1-L, △L2=L2-L; Among them, △L1≥2mm, △L2≥2mm.

5. A heat exchange system, characterized by, include: heat exchangers; as well as, The liquid separator according to any one of claims 1 to 4, connected to a heat exchanger.

6. An air conditioner characterized by comprising: include: Outdoor unit; as well as The liquid dispenser according to any one of claims 1 to 4, arranged in an outdoor unit; or The heat exchange system of claim 5.

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