CN214307718U - Distributor and air conditioning equipment - Google Patents

Abstract

The utility model relates to a distributor and air conditioning equipment, this distributor include the inflow pipe and distribute the main part, and the distribution main part is connected to inflow pipe one end. A first mixing cavity and a second mixing cavity are sequentially arranged between the inlet of the inflow pipe and the outlet of the distribution main body, and the inlet of the inflow pipe, the first mixing cavity, the second mixing cavity and the outlet of the distribution main body are sequentially communicated. The maximum cross-sectional area of the first mixing chamber is greater than the cross-sectional area of the inlet flow tube, and the maximum cross-sectional area of the second mixing chamber is greater than the maximum cross-sectional area of the first mixing chamber. The arrangement of the first mixing cavity and the second mixing cavity enables fluid media to have a better mixing effect, the first mixing cavity and the second mixing cavity are simple in structure, and the processing difficulty of the distributor is greatly reduced. The utility model provides a current distributor has been solved to the distributor difficult problem that satisfies the distribution effect better and the processing degree of difficulty is lower simultaneously.

Description

Distributor and air conditioning equipment

Technical Field

The utility model relates to a refrigeration technology field especially relates to a distributor and air conditioning equipment.

Background

In the field of refrigeration technology, a distributor is usually installed at the inlet of a heat exchanger for uniformly distributing a fluid medium in a gas-liquid two-phase to each pipe of the heat exchanger. The gas-liquid two-phase fluid medium entering the distributor is influenced by gravity, and the laminar flow condition often occurs, and if the fluid medium is directly distributed, the non-uniform distribution condition of the fluid medium in the distributor is easily caused.

Existing dispensers typically include jack dispensers, venturi dispensers and conical jack dispensers. The jack type distributor is simple in structure, small in processing difficulty and poor in distribution effect. The Venturi type distributor and the conical type distributor have relatively good distribution effects, but are difficult to process and high in production cost.

SUMMERY OF THE UTILITY MODEL

In view of the above, a distributor and an air conditioning apparatus are needed to solve the problem that the existing distributor is difficult to satisfy the requirements of better distribution effect and lower processing difficulty.

The utility model provides a distributor, this distributor include the inflow pipe and distribute the main part, and the distribution main part is connected to inflow pipe one end. A first mixing cavity and a second mixing cavity are sequentially arranged between the inlet of the inflow pipe and the outlet of the distribution main body, and the inlet of the inflow pipe, the first mixing cavity, the second mixing cavity and the outlet of the distribution main body are sequentially communicated. The maximum cross-sectional area of the first mixing chamber is greater than the cross-sectional area of the inlet flow tube, and the maximum cross-sectional area of the second mixing chamber is greater than the maximum cross-sectional area of the first mixing chamber.

In an embodiment of the present invention, the cross-sectional area of the first mixing chamber is first increased and then decreased from the end away from the dispensing body to the other end close to the dispensing body. So configured, the fluid medium forms a turbulent vortex within the first mixing chamber. Turbulent vortex can further increase the mixing effect of the gas-liquid two-phase fluid medium, so that the fluid medium is mixed more uniformly.

In an embodiment of the present invention, the inlet pipe is sequentially provided with a plurality of first mixing chambers from one end far away from the distribution main body to the other end near the distribution main body, and the plurality of first mixing chambers are communicated with each other. Therefore, the fluid medium is mixed once in the first mixing cavities respectively, and the fluid medium is mixed for multiple times, so that the mixture of the gaseous medium and the liquid medium is more uniform.

In an embodiment of the present invention, the first mixing chambers are connected in sequence along the axis of the inlet pipe. Therefore, the fluid medium leaving the previous first mixing cavity can rapidly enter the next first mixing cavity, and the mixing efficiency of the fluid medium is facilitated.

In an embodiment of the present invention, the pipe wall of the inlet pipe expands to the outer circumference to form the side wall of the first mixing chamber. The side wall of the first mixing cavity can be machined and formed by utilizing the ductility of the pipe wall of the inflow pipe through an expansion machining mode. Thus, the processing difficulty of the first mixing cavity is reduced, and the production cost of the distributor is greatly reduced.

In an embodiment of the present invention, the cross section of the mixing portion is circular or rectangular. The cross section of the first mixing cavity is circular, so that the fluid medium can flow and be mixed more easily along the inner wall of the first mixing cavity, and the fluid medium can be mixed more uniformly. The cross section of the first mixing cavity is rectangular, and the side wall of the first mixing cavity is easier to machine and form.

In an embodiment of the present invention, one end of the inlet pipe is inserted into the distribution body and is connected to the distribution body by welding or screwing. One end of the inflow pipe is inserted into the distribution body, so that the connection between the inflow pipe and the distribution body is firmer. In addition, in the welding process of the inflow pipe and the distribution main body, the melted solder can flow into a gap between the inflow pipe and the distribution main body, so that the inflow pipe and the distribution main body can be conveniently welded. The inlet pipe is in threaded connection with the distribution main body, so that the inlet pipe and the distribution main body can be conveniently detached.

In an embodiment of the present invention, the one end of the distribution main body away from the inlet pipe is set as a distribution surface, the distribution surface is provided with a plurality of distribution openings, and the distribution openings are uniformly distributed on the distribution surface. Therefore, the fluid medium in the second mixing cavity can quickly leave the second mixing cavity through the distribution port, and the distribution efficiency of the distributor is improved. At the same time, the dispenser is also made more aesthetically pleasing.

In an embodiment of the present invention, the flow dividing surface is a plane. The split-flow surface is easy to process and convenient for forming the distribution holes on the plane, so that the processing difficulty of the whole distributor is reduced.

The utility model also provides an air conditioning equipment, this air conditioning equipment include above embodiment the distributor.

The utility model provides a distributor and air conditioning equipment, the double-phase fluid medium of gas-liquid has just got into the inflow pipe, and at this moment, fluid medium's gaseous state medium and liquid medium mix inhomogeneously. As known from the general knowledge of physics, when a fluid medium flows in an inflow pipe, the fluid medium itself has static pressure energy. In which a fluid medium intended to pass through a section can only enter the system with an amount of energy corresponding to the work required, this amount of energy being referred to as hydrostatic energy. That is, the fluid medium has a tendency to diffuse away from the inlet flow tube. The fluid medium then enters the first mixing chamber, and the cross-sectional area of the first mixing chamber is larger than the cross-sectional area of the inlet flow tube. The fluid medium in the first mixing chamber will thus rapidly diffuse around the first mixing chamber. From the law of thermodynamics, the process of a substance going from a high energy state to a low energy state is spontaneous and the substance gradually changes from ordered to disordered. Therefore, the process of the fluid medium diffusing in the first mixing cavity is disordered, and the fluid medium of gas-liquid two phases is fully mixed in the first mixing cavity. Likewise, the maximum cross-sectional area of the second mixing chamber is greater than the maximum cross-sectional area of the first mixing chamber. Thus, after the fluid medium has passed from the first mixing chamber into the second mixing chamber, further mixing also takes place. In summary, the arrangement of the first mixing cavity enables the fluid medium to have a better mixing effect, the structure of the first mixing cavity is simpler, and the processing difficulty of the distributor is greatly reduced. Therefore, the utility model provides a current distributor has been solved to the distributor difficult problem that satisfies the distribution effect better and the processing degree of difficulty is lower simultaneously.

Drawings

Fig. 1 is a cross-sectional view of a dispenser according to an embodiment of the present invention;

FIG. 2 is a bottom view of the dispenser of FIG. 1;

FIG. 3 is a cross-sectional view of a dispenser according to another embodiment of the present invention;

fig. 4 is a cross-sectional view of a dispenser according to yet another embodiment of the present invention;

fig. 5 is a cross-sectional view of a dispenser according to yet another embodiment of the present invention.

Reference numerals: 1. an inlet pipe; 12. a first mixing chamber; 2. a dispensing body; 21. a flow dividing surface; 22. a dispensing opening; 23. a second mixing chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all 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 "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, 3, 4 and 5, the present invention provides a dispenser for use in an air conditioner, which is installed on a pipeline for dispensing a fluid medium. Wherein the arrows indicate the flow direction of the fluid medium.

Specifically, the distributor comprises a flow inlet pipe 1 and a distribution body 2, wherein one end of the flow inlet pipe 1 is connected with the distribution body 2. A first mixing cavity 12 and a second mixing cavity 23 are sequentially arranged between the inlet of the inlet flow pipe 1 and the outlet of the distribution main body 2, and the inlet of the inlet flow pipe 1, the first mixing cavity 12, the second mixing cavity 23 and the outlet of the distribution main body 2 are sequentially communicated. The maximum cross-sectional area of the first mixing chamber 12 is greater than the cross-sectional area of the inlet flow pipe 1 and the maximum cross-sectional area of the second mixing chamber 23 is greater than the maximum cross-sectional area of the first mixing chamber 12. The first mixing chamber 12 can be disposed on the distribution body 2 or on the inflow tube 1.

The gas-liquid two-phase fluid medium just enters the inflow pipe 1, and at this time, the gaseous medium and the liquid medium of the fluid medium are not uniformly mixed. As known from the general physical knowledge, when a fluid medium flows in the inflow pipe 1, the fluid medium itself has static pressure energy. In which a fluid medium intended to pass through a section can only enter the system with an amount of energy corresponding to the work required, this amount of energy being referred to as hydrostatic energy. That is, the fluid medium has a tendency to diffuse away from the inlet flow pipe 1. The fluid medium then enters the first mixing chamber 12, and the cross-sectional area of the first mixing chamber 12 is larger than the cross-sectional area of the inlet flow pipe 1. The fluid medium will thus rapidly diffuse in the first mixing chamber 12 towards the surroundings of the first mixing chamber 12. From the law of thermodynamics, the process of a substance going from a high energy state to a low energy state is spontaneous and the substance gradually changes from ordered to disordered. Therefore, the process of the fluid medium diffusing in the first mixing chamber 12 is disordered, and at this time, the fluid medium of the gas-liquid two-phase is sufficiently mixed in the first mixing chamber 12. Likewise, the maximum cross-sectional area of the second mixing chamber 23 is greater than the maximum cross-sectional area of the first mixing chamber 12. Thus, after the fluid medium has entered the second mixing chamber 23 from the first mixing chamber 12, further mixing also takes place. In summary, the arrangement of the first mixing chamber 12 and the second mixing chamber 23 enables the fluid medium to have a better mixing effect, and the first mixing chamber 12 and the second mixing chamber 23 are simpler in structure, so that the processing difficulty of the dispenser is greatly reduced. Therefore, the utility model provides a current distributor has been solved to the distributor difficult problem that satisfies the distribution effect better and the processing degree of difficulty is lower simultaneously.

In one embodiment, as shown in fig. 1, 3 and 4, the cross-sectional area of the first mixing chamber 12 increases and then decreases from the end away from the dispensing body 2 to the end close to the dispensing body 2. As can be seen from the above embodiment, since the fluid medium has static pressure energy in the pipe, the fluid medium will rapidly diffuse around the first mixing chamber 12 in the first mixing chamber 12 as the cross-sectional area of the first mixing chamber 12 increases. The process of the fluid medium diffusing in the first mixing chamber 12 is disordered, and at this time, the fluid medium of the gas-liquid two-phase is sufficiently mixed in the first mixing chamber 12. In this embodiment, the cross-sectional area of the first mixing chamber 12 increases from the end away from the distribution body 2 to the end close to the distribution body 2. When the cross-sectional area of the first mixing chamber 12 becomes smaller, the fluid medium that originally diffused to the periphery is gathered again under the action of the inner wall of the first mixing chamber 12. In the process, the fluid medium will continuously impact the inner wall of the first mixing chamber 12, and the inner wall of the first mixing chamber 12 will give the fluid medium an opposing force in an axisymmetric direction with respect to the force given to the inner wall of the first mixing chamber 12 by the fluid medium. Under the urging of the opposing force, the fluid medium impacts the inner wall of the first mixing chamber 12 and moves in a direction that is axisymmetric to the original direction of movement. At this point, the fluid medium forms a turbulent vortex within the first mixing chamber 12. Turbulent vortex can further increase the mixing effect of the gas-liquid two-phase fluid medium, so that the fluid medium is mixed more uniformly.

In one embodiment, as shown in fig. 3, the inlet pipe 1 is provided with a plurality of first mixing chambers 12 in sequence from one end far away from the distribution body 2 to the other end near the distribution body 2, and the plurality of first mixing chambers 12 are communicated with each other. In this way, the fluid medium is mixed once in each of the plurality of first mixing chambers 12, and the fluid medium is mixed many times, so that the mixture of the gaseous medium and the liquid medium is more uniform. The plurality of first mixing chambers 12 means that the number of first mixing chambers 12 is greater than or equal to two.

In one embodiment, as shown in FIG. 3, a plurality of first mixing chambers 12 are connected in series along the axis of the inlet flow tube 1. In this way, the fluid medium leaving the previous first mixing chamber 12 will rapidly enter the next first mixing chamber 12, which is beneficial to the mixing efficiency of the fluid medium. But not limited thereto, a plurality of first mixing chambers 12 may be arranged at intervals, so that the total time for mixing of the fluid media to occur can be prolonged, and the fluid media can be mixed more uniformly.

In one embodiment, as shown in fig. 1, 3 and 4, the wall of the inlet flow tube 1 is flared toward the outer peripheral side to form the side wall of the first mixing chamber 12. The side wall of the first mixing chamber 12 can be formed by expansion by utilizing the ductility of the pipe wall of the inflow pipe 1. In this way, the difficulty of machining the first mixing chamber 12 is reduced and the production costs of the dispenser are greatly reduced. But not limited thereto, the side wall of the first mixing chamber 12 may be formed separately and connected with the inlet pipe 1 by clamping or welding.

In one embodiment, as shown in FIGS. 1 and 4, the first mixing chamber 12 is circular or rectangular in cross-section. The cross section of the first mixing chamber 12 is circular, so that the fluid medium can flow and be mixed more easily along the inner wall of the first mixing chamber 12, and the fluid medium can be mixed more uniformly. The cross section of the first mixing chamber 12 is rectangular, and the side wall of the first mixing chamber 12 is easier to machine. But is not limited thereto, the cross-section of the mixing section 11 may also be of other shapes.

In one embodiment, as shown in fig. 1, 3 and 4, the inlet flow tube 1 is inserted into the distribution body 2 at one end and is welded or screwed to the distribution body 2. The inlet pipe 1 is inserted into the distribution body 2 at one end thereof so that the inlet pipe 1 and the distribution body 2 are more firmly connected. In addition, during the welding process of the inlet pipe 1 and the distribution body 2, the melted solder can flow into the gap between the inlet pipe 1 and the distribution body 2, so as to facilitate the welding of the inlet pipe 1 and the distribution body 2. In other embodiments, the inner diameter of the inlet pipe 1 may be set larger than the inner diameter of the distribution body 2, and the distribution body 2 may be inserted into the lower end of the inlet pipe 1. Besides welding, the inlet pipe 1 and the distribution body 2 can be screwed for disassembly.

Further, the inlet pipe 1 and the distribution body 2 are connected by means of brazing, and a brazing filler metal for brazing is provided at a gap between the inlet pipe 1 and the distribution body 2. Brazing refers to a welding method in which brazing filler metal lower than the melting point of a weldment and the weldment are heated to the melting temperature of the brazing filler metal at the same time, and then the liquid brazing filler metal is used for filling gaps of the weldment to connect the weldment. Compared with other welding modes, the surfaces of the inflow pipe 1 and the distribution main body 2 are smoother during brazing, and the integral attractiveness of the distributor is facilitated. Moreover, brazing can be used for connecting the same or different metals and parts of non-metals, so that the structure and the performance of the inflow pipe 1 and the distribution body 2 are not changed greatly during brazing, namely, the structure and the performance of the inflow pipe 1 and the distribution body 2 are more stable.

In an embodiment, as shown in fig. 1 and fig. 2, one end of the distribution main body 2 away from the inflow pipe 1 is set as a distribution surface 21, a plurality of distribution openings 22 are provided on the distribution surface 21, and the distribution openings 22 are uniformly distributed on the distribution surface 21. In this way, the fluid medium in the second mixing chamber can be rapidly discharged from the second mixing chamber through the distribution opening 22, and the distribution efficiency of the distributor can be improved. At the same time, the dispenser is also made more aesthetically pleasing.

In one embodiment, as shown in fig. 1 and 2, the diverging surface 21 is a plane. The flow distribution surface 21 which is arranged to be a plane is easy to process, and distribution holes are convenient to be formed in the plane, so that the processing difficulty of the whole distributor is reduced.

The utility model also provides an air conditioning equipment, this air conditioning equipment include above embodiment the distributor.

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

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (10)

1. A distributor is characterized by comprising a flow inlet pipe (1) and a distribution main body (2), wherein one end of the flow inlet pipe (1) is connected with the distribution main body (2), a first mixing cavity (12) and a second mixing cavity (23) are sequentially arranged between an inlet of the flow inlet pipe (1) and an outlet of the distribution main body (2), and the inlet of the flow inlet pipe (1), the first mixing cavity (12), the second mixing cavity (23) and the outlet of the distribution main body (2) are sequentially communicated; the maximum cross-sectional area of the first mixing chamber (12) is larger than the cross-sectional area of the inflow pipe (1), and the maximum cross-sectional area of the second mixing chamber (23) is larger than the maximum cross-sectional area of the first mixing chamber (12).

2. The dispenser according to claim 1, characterized in that the cross-sectional area of the first mixing chamber (12) increases and then decreases from the end remote from the dispensing body (2) to the end close to the dispensing body (2).

3. The dispenser according to claim 2, characterized in that the inlet pipe (1) is provided with a plurality of said first mixing chambers (12) in sequence from one end remote from the dispensing body (2) to the other end close to the dispensing body (2), and the first mixing chambers (12) are in communication with each other.

4. A distributor according to claim 3, characterized in that a plurality of said first mixing chambers (12) are connected in series along the axis of said inlet pipe (1).

5. A distributor according to claim 1, wherein the wall of the inflow pipe (1) expands towards the outer circumferential side forming a side wall of the first mixing chamber (12).

6. A dispenser according to claim 1, characterized in that the cross-section of the first mixing chamber (12) is circular or rectangular.

7. Distributor according to claim 1, characterized in that the inflow pipe (1) is inserted at one end into the distribution body (2) and is welded or screwed to the distribution body (2).

8. The distributor according to claim 1, wherein the end of the distribution body (2) remote from the inflow pipe (1) is provided with a distribution surface (21), a plurality of distribution openings (22) are arranged on the distribution surface (21), and the distribution openings (22) are uniformly distributed on the distribution surface (21).

9. Distributor according to claim 8, characterized in that the distribution surface (21) is plane.

10. An air conditioning apparatus, characterized in that it comprises a distributor according to any one of claims 1 to 9.

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