Dispenser

Abstract

The present application relates to the field of refrigeration technology, and particularly to a dispenser. The dispenser includes a main body and a distribution structure. The main body has an inlet and an outlet. The distribution structure is installed inside the main body, and the distribution structure connects the inlet and the outlet. A turbulent flow chamber communicating with the inlet is formed in the distribution structure, and a mixing hole communicating with the outlet is formed on the outer peripheral side of the distribution structure. A mixing chamber is formed between the outer peripheral side of a part of the distribution structure and a part of the inner wall of the main body, and the mixing chamber communicates with the turbulent flow chamber and the mixing hole respectively. The advantages of the present invention are as follows: The refrigerant fluid undergoes multiple impacts and reflections in the dispenser, so that the refrigerant fluid is fully agitated, thereby improving the mixing effect of the refrigerant.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration, and particularly to a dispenser. Background Art

[0002] The dispenser is mainly used in the refrigeration and air-conditioning pipeline system. Its function is to fully mix the gas-liquid two-phase refrigerant and then evenly supply the liquid to each branch of the evaporator in equal amounts to achieve the best refrigeration effect.

[0003] The existing dispenser includes a housing and an impeller. The impeller includes a flow guiding orifice plate, a flow dividing cone and flow guiding vanes. The impeller is installed inside the housing. The gas-liquid two-phase refrigerant enters the dispenser and is evenly mixed by the flow dividing cone and the flow guiding vanes and then distributed to each branch pipe. However, in actual operation, the refrigerant passing through the impeller often still has the phenomenon of uneven mixing of gas and liquid phases, resulting in different refrigerant flow rates entering each branch pipe, affecting the evaporation and heat exchange performance of the evaporator, and thus affecting the energy efficiency ratio of the entire refrigeration system. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a dispenser that can improve the mixing effect of the refrigerant.

[0005] A dispenser includes a main body and a distribution structure. The main body has an inlet and an outlet. The distribution structure is installed inside the main body, and the distribution structure communicates with the inlet and the outlet. A turbulence chamber communicating with the inlet is provided in the distribution structure, and a mixing hole communicating with the outlet is provided on the outer peripheral side of the distribution structure. A mixing chamber is formed by the outer peripheral side of a part of the distribution structure and a part of the inner wall of the main body, and the mixing chamber communicates with the turbulence chamber and the mixing hole respectively.

[0006] It can be understood that when the gas-liquid two-phase refrigerant fluid just enters the dispenser, at this time, the gas and liquid phases of the fluid are unevenly mixed. When flowing into the turbulence chamber, the high-speed flowing refrigerant fluid will impact the wall surface of the turbulence chamber, thereby generating eddy currents, which is beneficial to the mixing of the gas-liquid two-phase refrigerant fluid. And, the mixed refrigerant fluid enters the mixing chamber and impacts the wall surface of the mixing chamber again, further promoting the mixing of the gas-liquid two-phase refrigerant fluid. The refrigerant fluid undergoes multiple impacts and reflections in the dispenser, causing the refrigerant fluid to be fully agitated, thereby improving the mixing uniformity.

[0007] In one embodiment, the distribution structure is further provided with a plurality of flow holes. The plurality of flow holes are circumferentially spaced apart along the distribution structure. One end of the flow hole communicates with the turbulence chamber, and the other end communicates with the mixing chamber. The plurality of mixing holes are circumferentially spaced apart along the distribution structure, and one of the flow holes is provided between two adjacent mixing holes.

[0008] With such a setting, the state and energy of the refrigerant fluid flowing through the flow orifice can be made uniform, thereby improving the uniformity of distribution.

[0009] In one embodiment, the planar angle or the skew angle between the axis of the flow orifice and the axis of the distribution structure is A, where 30° ≤ A ≤ 90°; the planar angle or the skew angle between the axis of the mixing orifice and the axis of the distribution structure is B, where 0° < B ≤ 60°, or the axis of the mixing orifice is parallel to the axis of the distribution structure.

[0010] With such a setting, the mixing effect of the gas-liquid two-phase refrigerant fluid can be further enhanced, thereby making the mixing more uniform.

[0011] In one embodiment, the flow orifice is inclined, and the inclination directions of multiple flow orifices are arranged counterclockwise around the axis of the distribution structure, or the inclination directions of multiple flow orifices are arranged clockwise around the axis of the distribution structure.

[0012] With such a setting, the eddy current can be better guided, making the fluid mixing more uniform.

[0013] In one embodiment, a confluence cavity is further formed at one end of the distribution structure close to the outlet. Along the axial direction of the distribution structure, the confluence cavity is recessed inward from the bottom of the distribution structure, and the confluence cavity is respectively communicated with the mixing orifice and the outlet.

[0014] With such a setting, it is convenient for the collection of the refrigerant fluid.

[0015] In one embodiment, the distribution structure further includes a flow splitting cone, the flow splitting cone is located in the flow disturbing cavity, and the flow splitting cone is integrally formed with the distribution structure or is fixedly connected to the distribution structure.

[0016] With such a setting, the uniformity of distribution can be improved and the overall strength of the distribution device can be enhanced.

[0017] In one embodiment, the distribution structure is further provided with a liquid inlet channel, the liquid inlet channel is located on one side of the flow disturbing cavity close to the inlet, the liquid inlet channel communicates the inlet and the flow disturbing cavity, and along the axial direction of the distribution structure and from the inlet to the outlet direction, the width of the cross-section of the liquid inlet channel gradually increases.

[0018] With such a setting, the space for refrigerant mixing can be increased, thereby making the gas-liquid two-phase mix more uniformly.

[0019] In one embodiment, the distribution structure is further provided with a reduced opening, the reduced opening communicates with the liquid inlet channel and the inlet, along the axis of the distribution structure and from the inlet to the outlet direction, the width of the cross-section of the reduced opening gradually decreases, the diameter at the maximum cross-section width of the reduced opening is smaller than the inner diameter of the inlet, and the reduced opening, the liquid inlet channel, the flow dividing cone, and the turbulence chamber are coaxially arranged.

[0020] With such a setting, the mixing effect of the gas-liquid two-phase refrigerant can be enhanced.

[0021] In one embodiment, the distribution structure is formed by any one of powder metallurgy process, 3D printing, and laser sintering.

[0022] With such a setting, the strength of the distribution structure can be ensured.

[0023] In one embodiment, the distribution structure further includes a first positioning portion, a second positioning portion, and a conical portion; the first positioning portion is located at one end of the distribution structure close to the inlet; the second positioning portion is located at one end of the distribution structure close to the outlet; the conical portion is located between the first positioning portion and the second positioning portion and is respectively connected to the first positioning portion and the second positioning portion, and from the direction of the first positioning portion to the second positioning portion, the width of the cross-section of the conical portion gradually increases, at least a part of the outer peripheral side of the conical portion and a part of the inner wall of the main body enclose the mixing chamber, and the first positioning portion and the second positioning portion are respectively fixedly connected to the main body.

[0024] With such a setting, it is convenient for fixed connection and improves the stability of the distributor structure.

[0025] In one embodiment, the main body further includes a first positioning platform, along the radial direction of the main body, the first positioning platform protrudes from the inner wall of the main body towards the direction away from the inner wall, and the first positioning platform is fixedly connected to the first positioning portion.

[0026] With such a setting, the stability of the connection can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of the distributor provided by the present application.

[0029] Figure 2 A cross-sectional view of a dispenser provided for this application.

[0030] Figure 3 A schematic diagram of the structure of the allocation structure provided in this application.

[0031] Figure 4 A cross-sectional view of the distribution structure provided in this application.

[0032] Figure 5 A cross-sectional view of the distribution structure provided in this application.

[0033] The symbols in the figure mean the following:

[0034] 100. distributor; 10. main body; 11. inlet; 12. outlet; 13. inlet portion; 14. outlet portion; 15. expansion portion; 151. first positioning platform; 20. distribution structure; 21. flow disturbance chamber; 22. mixing hole; 23. flow diversion cone; 24. flow hole; 25. liquid inlet channel; 251. constriction; 26. first positioning portion; 27. second positioning portion; 28. conical portion; 30. mixing chamber; 40. converging chamber. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" or "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or it merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" or "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or it merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0039] Unless otherwise defined, all technical and scientific terms used in the description of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the description of this application includes any and all combinations of one or more of the related listed items.

[0040] Please refer to Figure 1 , this application provides a dispenser 100, which can be applied to various refrigeration and air-conditioning pipeline systems. Its function is to fully mix the refrigerant in the gas-liquid two-phase state and supply the liquid evenly and in equal amounts to each branch of the evaporator, so as to achieve the best refrigeration effect.

[0041] Please refer to Figure 2 , the dispenser 100 includes a main body 10 and a distribution structure 20. The main body 10 has an inlet 11 and an outlet 12, and the number of outlets 12 can be multiple. The distribution structure 20 is installed inside the main body 10, and the distribution structure 20 connects the inlet 11 and the outlet 12. A turbulence chamber 21 communicating with the inlet 11 is formed inside the distribution structure 20, a mixing hole 22 communicating with the outlet 12 is formed on the outer peripheral side of the distribution structure 20, and a mixing chamber 30 is formed between the outer peripheral side of a part of the distribution structure 20 and a part of the inner wall of the main body 10. The mixing chamber 30 communicates with the turbulence chamber 21 and the mixing hole 22 respectively.

[0042] The refrigerant fluid in the gas-liquid two-phase state just enters the distributor 100. At this time, the gas-liquid two-phase mixture of the fluid is uneven. The refrigerant enters the turbulence chamber 21 from the inlet 11 of the main body 10. When flowing into the turbulence chamber 21, the high-speed flowing refrigerant will impact the inner wall of the turbulence chamber 21. Through the impact with the inner wall of the turbulence chamber 21, the refrigerant can be fully agitated in the turbulence chamber 21, thereby generating a vortex, which is beneficial to the first full mixing of the gas-liquid two-phase refrigerant. Under the action of the velocity, the mixed refrigerant will flow out of the turbulence chamber 21 and impact the inner wall of the mixing chamber 30 (i.e., a part of the inner wall of the main body 10 that encloses the mixing chamber 30). The refrigerant can generate reflection through the impact with the inner wall of the mixing chamber 30, so that the refrigerant can be fully agitated in the mixing chamber 30 to perform the second full mixing, further promoting the uniform mixing of the gas and liquid two-phase refrigerants. Subsequently, the refrigerant flows out from the mixing hole 22 and flows towards the outlet 12. The refrigerant can be repeatedly impacted and reflected in the distributor 100 and be fully agitated, thereby improving the uniformity of the mixing of the gas-liquid two-phase refrigerant.

[0043] Further, please refer to Figure 2 , the distribution structure 20 is also provided with a liquid inlet channel 25. The liquid inlet channel 25 is located on the side of the turbulence chamber 21 close to the inlet 11, and the liquid inlet channel 25 is respectively communicated with the inlet 11 and the turbulence chamber 21. Along the flow direction of the refrigerant, that is, along the axis of the distribution structure 20 and from the inlet 11 to the outlet 12 direction, the width of the cross-section of the liquid inlet channel 25 gradually increases. In this way, it is convenient for processing, so that the transition at the junction of the liquid inlet channel 25 and the turbulence chamber 21 is relatively gentle, and it can also increase the space for the mutual impact and collision of the refrigerant in the turbulence chamber 21, and better perform the uniform mixing of the gas-liquid two-phase. And it can save the material of the distribution structure 20 and reduce the cost.

[0044] Specifically, the shape of the liquid inlet channel 25 is frustum-shaped. In other embodiments, the liquid inlet channel 25 can also be cylindrical.

[0045] Please continue to refer to Figure 2 , the distribution structure 20 is also provided with a reduced opening 251. The reduced opening 251 is located at one end of the distribution structure 20 close to the inlet 11. The reduced opening 251 is respectively communicated with the liquid inlet channel 25 and the inlet 11. Along the flow direction of the refrigerant, that is, along the axis of the distribution structure 20 and from the inlet 11 to the outlet 12 direction, the width of the cross-section of the reduced opening 251 gradually decreases. Specifically, the reduced opening 251 is in the shape of an inverted frustum. Of course, in other embodiments, the reduced opening 251 can also be other shapes.

[0046] Further, the diameter at the maximum cross-sectional width of the necking 251 is smaller than the inner diameter of the inlet 11. When the refrigerant enters the necking 251 from the inlet 11, part of the refrigerant will impact the outer wall of the distribution structure 20, and the orderly flowing refrigerant fluid is scattered, forming a turbulent vortex of disorderly flow. The turbulent vortex will further enhance the mixing effect of the refrigerant fluid in the gas-liquid two-phase. And because the diameter of the maximum cross-section of the necking 251 is smaller than the inner diameter of the inlet 11, the flow path of the refrigerant becomes narrower and the flow rate increases, and it will impact the inner wall of the turbulence chamber 21 through the liquid inlet passage 25 at a faster speed, and it is easier to generate eddy currents, which is conducive to the uniform mixing of the gas-liquid two-phase refrigerant.

[0047] In one embodiment, the shape of the turbulence chamber 21 is generally ellipsoidal, which is convenient for guiding the refrigerant in the turbulence chamber 21 to flow along the inner wall of the turbulence chamber 21 into the mixing chamber 30. At the same time, it can also make the refrigerant converge towards the center of the turbulence chamber 21 after impacting the inner wall of the turbulence chamber 21, and the refrigerant fluids flowing in different directions are doped with each other, making the refrigerant fluid mix more evenly.

[0048] The distribution structure 20 further includes a flow splitting cone 23, and the flow splitting cone 23 is located in the turbulence chamber 21. The flow splitting cone 23 plays a role in guiding and splitting the flow. The flow splitting cone 23 splits the refrigerant flowing at high speed into the turbulence chamber 21 from the liquid inlet passage 25, and the split refrigerant flows along the outer wall of the flow splitting cone 23, thereby suppressing the size and number of bubbles in the refrigerant fluid, and at the same time avoiding the refrigerant fluid directly impacting the inner wall of the turbulence chamber 21, reducing its flow loss and reducing the flow noise.

[0049] The flow splitting cone 23 can be processed along the fluid movement trend. In one embodiment, the flow splitting cone 23 is generally conical. In this way, it can play a role in splitting the flow more easily. In other embodiments, the flow splitting cone 23 can also be triangular or other shapes, as long as it can achieve the same flow splitting effect.

[0050] The flow splitting cone 23 and the distribution structure 20 are integrally formed. It can effectively improve the overall structural strength of the distribution structure 20. At the same time, it can reduce the assembly time and cost. Of course, in other embodiments, the flow splitting cone 23 and the distribution structure 20 can also be fixedly connected, fixedly connected by welding or other means, or detachably connected by means of threaded connection or the like.

[0051] Further, the necking 251, the liquid inlet passage 25, the flow splitting cone 23 and the turbulence chamber 21 are coaxially arranged. By coaxial arrangement, when the refrigerant fluid enters the turbulence chamber 21 through the necking 251, it will preferentially guide the fluid to impact the flow splitting cone 23. Due to the coaxial arrangement, that is, the flow splitting cone 23 is located in the middle part of the impact surface of the turbulence chamber 21, the flow splitting cone 23 can play a more uniform flow splitting role, making the refrigerant fluid flow evenly to the periphery of the turbulence chamber 21, thereby improving the uniformity of distribution.

[0052] Please refer to Figure 2 、 Figure 3 and Figure 4 As shown, the distribution structure 20 is also provided with a plurality of flow holes 24. The plurality of flow holes 24 are circumferentially spaced along the distribution structure 20. One end of each flow hole 24 communicates with the turbulence chamber 21, and the other end communicates with the mixing chamber 30. Specifically, the plurality of flow holes 24 are evenly spaced in the circumferential direction of the distribution structure 20. The refrigerant flows from the turbulence chamber 21 into the mixing chamber 30 through the flow holes 24. Since the refrigerant forms a high-speed and uniform eddy current in the turbulence chamber 21 by the flow dividing cone 23, the uniform spaced distribution of the flow holes 24 enables the flow rate of the refrigerant fluid passing through each flow hole 24 to be uniform, thereby improving the distribution uniformity and the heat exchange performance of the refrigeration system.

[0053] Please refer to Figure 2 and Figure 5 As shown, the planar angle or the skew angle between the axis of the flow hole 24 and the axis of the distribution structure 20 is A, and 30° ≤ A ≤ 90°. In this way, the refrigerant passing through the flow hole 24 can impact the inner wall of the mixing chamber 30. The refrigerant fluid flowing out of the turbulence chamber 21 is impacted and diffused around, changing the flow direction. The refrigerant fluids with different flow directions are doped with each other, further strengthening the mixing effect of the gas-liquid two-phase refrigerant fluid, so that the refrigerant is mixed more evenly.

[0054] It should be noted that the planar angle A between the axis of the flow hole 24 and the axis of the distribution structure 20 in this application always takes a right angle or an acute angle. Specifically, when the end of the flow hole 24 far from the turbulence chamber 21 is arranged towards the outlet part 14 as described below, if the angle A marked in the figure is an obtuse angle at this time, but in this application, the degree of the angle A is always taken as an acute angle or a right angle, that is, if the angle A marked in the figure is an obtuse angle, the degree of the angle A in this application takes the acute angle complementary to the obtuse angle.

[0055] Define the plane passing through the axis of the distribution structure 20 and parallel to the axis of one of the flow holes 24 as the reference plane. The angle A marked in the figure is the angle A formed by the projection of the flow hole 24 in this reference plane and the axis of the distribution structure 20.

[0056] In this embodiment, preferably, the planar angle or the skew angle between the axis of the flow-through hole 24 and the axis of the distribution structure 20 is 90°. In this way, the refrigerant located in the turbulence chamber 21 can flow out of the flow-through hole 24 in the horizontal direction. After hitting the mixing chamber 30, it can more easily diffuse in all directions, having a larger mixing space, which is more convenient for the mutual doping between fluids, so that the gas-liquid mixing of the refrigerant is more uniform. In other embodiments, the planar angle or the skew angle between the axis of the flow-through hole 24 and the axis of the distribution structure 20 can be selected at different angles according to actual application needs. For example, the angle A can be 40°, 50°, 60°, 70° or 80°. Thus, the gas-liquid mixing can be made more uniform, overcoming the influence of factors such as gravity and uneven structural processing.

[0057] Further, please refer to Figure 4 , the flow-through hole 24 is inclined. The inclined setting is defined as that the axis of the flow-through hole 24 and the axis of the distribution structure 20 are skew lines. The inclination directions of the multiple flow-through holes 24 can be set counterclockwise around the axis of the distribution structure 20, or the inclination directions of the multiple flow-through holes 24 can be set clockwise around the axis of the distribution structure 20. Since the refrigerant fluid forms a vortex when hitting the turbulence chamber 21, the inclined flow-through hole 24 can play a role in guiding the vortex to flow out, which is convenient for better guiding the vortex, thereby strengthening the mixing effect of the gas-liquid two-phase refrigerant fluid and making the fluid mixing more uniform.

[0058] In this application, please refer to Figure 2 , Figure 3 and Figure 4 , there are multiple mixing holes 22. The multiple mixing holes 22 are distributed at intervals along the circumferential direction of the distribution structure 20, and a flow-through hole 24 is provided between two adjacent mixing holes 22. Specifically, the multiple mixing holes 22 are evenly distributed at intervals along the circumferential direction of the distribution structure 20. The evenly spaced mixing holes 22 can ensure that the refrigerant flow rates distributed to each branch are more uniform, thereby improving the heat exchange effect of the entire refrigeration system. A flow-through hole 24 is provided between two adjacent mixing holes 22, that is, along the outer peripheral side of the distribution structure 20, the flow-through hole 24 and the mixing hole 22 are arranged at intervals. The refrigerant fluid flowing into the mixing chamber 30 from the flow-through hole 24 can flow out through the adjacent mixing holes 22 in time after being evenly mixed.

[0059] Please refer to Figure 2 and Figure 5, the planar angle or skew angle between the axis of the mixing hole 22 and the axis of the distribution structure 20 is B, 0° < B ≤ 60°, or the axis of the mixing hole 22 is parallel to the axis of the distribution structure 20. In this way, the mixing hole 22 can avoid interfering with other structures, is convenient for processing and forming, and can preferably play the role of guiding the refrigerant fluid to flow out. The angle between the axis of the mixing hole 22 and the axis of the distribution structure 20 can be selected appropriately according to actual needs. For example, the angle between the axis of the mixing hole 22 and the axis of the distribution structure 20 can be 20°, 30°, 40° or 50°.

[0060] A confluence chamber 40 is also formed at one end of the distribution structure 20 close to the outlet 12. Along the axial direction of the distribution structure 20, the confluence chamber 40 is recessed inward from the bottom of the distribution structure 20. It is defined that one end of the distribution structure 20 close to the outlet 12 along its axial direction is the bottom. The confluence chamber 40 is respectively communicated with the mixing hole 22 and the outlet 12. The refrigerant fluid passing through the mixing hole 22 converges and impacts each other in the confluence chamber 40 for the third uniform mixing, and then flows out from the outlet 12.

[0061] Please refer to Figure 2 and Figure 3 , the distribution structure 20 further includes a first positioning portion 26, a second positioning portion 27 and a tapered portion 28. The first positioning portion 26 is located at one end of the distribution structure 20 close to the inlet 11, the second positioning portion 27 is located at one end of the distribution structure 20 close to the outlet 12, and the tapered portion 28 is located between the first positioning portion 26 and the second positioning portion 27 and is respectively connected to the first positioning portion 26 and the second positioning portion 27. The first positioning portion 26 and the second positioning portion 27 are respectively fixedly connected to the main body 10, and specifically, the fixed connection can be realized by welding, bonding or interference fit and other methods, so that the distribution structure 20 is fixed in the main body 10 and is not easy to move, thereby improving the structural stability of the distributor 100.

[0062] At least a part of the outer peripheral side of the tapered portion 28 and a part of the inner wall of the main body 10 enclose a mixing chamber 30. And in the direction from the first positioning portion 26 to the second positioning portion 27, the width of the cross-section of the tapered portion 28 gradually increases. Specifically, the tapered portion 28 is in the shape of a frustum of a cone.

[0063] Furthermore, the distribution structure 20 is processed and formed by any one of powder metallurgy process, 3D printing, and laser sintering. In this way, the processing difficulty can be reduced, the processing efficiency can be improved, and the strength of the distribution structure 20 can be ensured.

[0064] The main body 10 further includes an inlet portion 13, an outlet portion 14, and an expansion portion 15. The inlet portion 13 is provided with an inlet 11; the outlet portion 14 is provided with an outlet 12; the expansion portion 15 is located between the inlet portion 13 and the outlet portion 14 and is respectively connected to the inlet portion 13 and the outlet portion 14. The distribution structure 20 is installed in the expansion portion 15. The refrigerant fluid mixed by the distribution structure 20 can enter the external branch pipe through the outlet 12 of the outlet portion 14 for heat exchange in the refrigeration system.

[0065] Further, the main body 10 further includes a first positioning platform 151. Specifically, on one side of the expansion portion 15 close to the inlet portion 13, a first positioning platform 151 is formed that extends along the circumferential direction of the main body 10 and protrudes in the direction of its axis. Or rather, in the radial direction of the main body 10, the first positioning platform 151 protrudes from the inner wall of the main body 10 towards a direction away from the inner wall. The first positioning platform 151 is fixedly connected to the first positioning portion 26, and the first positioning platform 151 cooperates with the first positioning portion 26 to facilitate the installation and fixation of the distribution structure 20. At the same time, it can limit the length of the external branch pipe extending into the inlet portion 13.

[0066] In one embodiment, the outlet portion 14 is provided with two outlets 12. In other embodiments, according to actual needs, the number of outlets 12 can be changed. For example, the number of outlets 12 can also be one, three, four, or more.

[0067] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0068] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A dispenser, comprising: A main body (10) having an inlet (11) and an outlet (12); A dispensing structure (20) installed inside the main body (10), the dispensing structure (20) communicating the inlet (11) and the outlet (12); Characterized in that a turbulence chamber (21) communicating with the inlet (11) is provided in the dispensing structure (20), a mixing hole (22) communicating with the outlet (12) is provided on the outer peripheral side of the dispensing structure (20), and a mixing chamber (30) is formed between the outer peripheral side of a part of the dispensing structure (20) and a part of the inner wall of the main body (10), and the mixing chamber (30) communicates with the turbulence chamber (21) and the mixing hole (22) respectively; The dispensing structure (20) is further provided with a plurality of flow holes (24), the plurality of flow holes (24) are circumferentially spaced apart along the dispensing structure (20), one end of the flow hole (24) communicates with the turbulence chamber (21), and the other end communicates with the mixing chamber (30); The plurality of mixing holes (22) are circumferentially spaced apart along the dispensing structure (20), and one of the flow holes (24) is provided between two adjacent mixing holes (22); The main body (10) includes an inlet portion (13), an outlet portion (14) and an expansion portion (15), the inlet (11) is provided in the inlet portion (13); the outlet (12) is provided in the outlet portion (14), and the expansion portion (15) is located between the inlet portion (13) and the outlet portion (14) and is respectively connected to the inlet portion (13) and the outlet portion (14).

2. The dispenser according to claim 1, characterized in that, The planar angle or skew angle between the axis of the flow hole (24) and the axis of the dispensing structure (20) is A, 30° ≤ A ≤ 90°; the planar angle or skew angle between the axis of the mixing hole (22) and the axis of the dispensing structure (20) is B, 0° < B ≤ 60°, or the axis of the mixing hole (22) is parallel to the axis of the dispensing structure (20).

3. The dispenser according to claim 2, characterized in that, The flow hole (24) is inclined, and the inclination directions of the plurality of flow holes (24) are arranged counterclockwise around the axis of the dispensing structure (20), or the inclination directions of the plurality of flow holes (24) are arranged clockwise around the axis of the dispensing structure (20).

4. The dispenser according to claim 3, characterized in that, A confluence chamber (40) is further provided at one end of the dispensing structure (20) close to the outlet (12), and along the axial direction of the dispensing structure (20), the confluence chamber (40) is recessed inward from the bottom of the dispensing structure (20), and the confluence chamber (40) communicates with the mixing hole (22) and the outlet (12) respectively.

5. The dispenser according to any one of claims 1 to 4, characterized in that, The dispensing structure (20) further includes: A flow splitting cone (23) located in the turbulence chamber (21), the flow splitting cone (23) is integrally formed with the dispensing structure (20), or the flow splitting cone (23) is fixedly connected to the dispensing structure (20).

6. The dispenser according to claim 5, characterized in that, The distribution structure (20) is further provided with a liquid inlet channel (25). The liquid inlet channel (25) is located on a side of the turbulence chamber (21) close to the inlet (11). The liquid inlet channel (25) communicates with the inlet (11) and the turbulence chamber (21). Along the axial direction of the distribution structure (20) and from the inlet (11) to the outlet (12), the width of the cross-section of the liquid inlet channel (25) gradually increases.

7. The dispenser according to claim 6, characterized in that, The distribution structure (20) is further provided with a reduced opening (251). The reduced opening (251) communicates with the liquid inlet channel (25) and the inlet (11). Along the axial direction of the distribution structure (20) and from the inlet (11) to the outlet (12), the width of the cross-section of the reduced opening (251) gradually decreases. The diameter at the maximum cross-section width of the reduced opening (251) is smaller than the inner diameter of the inlet (11). The reduced opening (251), the liquid inlet channel (25), the flow splitting cone (23), and the turbulence chamber (21) are coaxially arranged.

8. The dispenser according to any one of claims 1 to 4 or 6 to 7, characterized in that The distribution structure (20) is formed by any one of powder metallurgy process, 3D printing, and laser sintering.

9. The dispenser according to any one of claims 1 to 4 or 6 to 7, characterized in that, The distribution structure (20) further includes: a first positioning portion (26), which is located at one end of the distribution structure (20) close to the inlet (11); a second positioning portion (27), which is located at one end of the distribution structure (20) close to the outlet (12); a conical portion (28), which is located between the first positioning portion (26) and the second positioning portion (27), and is respectively connected to the first positioning portion (26) and the second positioning portion (27). And from the direction of the first positioning portion (26) to the second positioning portion (27), the width of the cross-section of the conical portion (28) gradually increases; At least a part of the outer peripheral side of the conical portion (28) and a part of the inner wall of the main body (10) enclose the mixing chamber (30). The first positioning portion (26) and the second positioning portion (27) are respectively fixedly connected to the main body (10).

10. The dispenser according to claim 9, characterized in that, The main body (10) further includes a first positioning platform (151). Along the radial direction of the main body (10), the first positioning platform (151) protrudes from the inner wall of the main body (10) towards a direction away from the inner wall. The first positioning platform (151) is fixedly connected to the first positioning portion (26).

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