Liquid accumulator and refrigerant pump

Abstract

The utility model relates to the technical field of refrigerant pumps, in particular to a liquid storage device and a refrigerant pump, the liquid storage device is applied to the refrigerant pump, the refrigerant pump comprises a pump body, the liquid storage device comprises a shell and a liquid discharge pipe, a liquid storage cavity is arranged in the shell and used for storing liquid refrigerant, the liquid discharge pipe is arranged at the bottom of the shell, and the liquid storage cavity is used for storing liquid refrigerant. The liquid discharge pipe comprises an inlet end and an outlet end, the inlet end communicates with the liquid storage cavity, and the outlet end communicates with the pump body. According to the arrangement, in the actual operation process of the refrigerant pump, a liquid refrigerant can be conveyed to the pump cavity from the bottom of the liquid storage device through the liquid discharging pipe, that is, it is ensured that the liquid refrigerant accumulated at the bottom of the liquid storage device flows into the pump cavity so as to be suitable for pumping of the liquid refrigerant, meanwhile, the circulation area of the first support is increased through the annular or Y-shaped first support, and the circulation efficiency is improved. The resistance borne by the liquid refrigerant when the liquid refrigerant flows at the position is reduced, the conveying smoothness is guaranteed, and the magnet is additionally arranged at the bottom of the shell, so that pipeline impurities such as welding slag can be adsorbed and removed.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerant pumps, in particular to a liquid accumulator and a refrigerant pump. Background Art

[0002] Fluorine pump air conditioning system requires a dedicated refrigerant pump to pump liquid refrigerant. The main function of the pump is to pump the liquid refrigerant of rated flow rate to the rated head. Therefore, during the operation of the refrigerant pump, the refrigerant entering the pump chamber must be liquid, and the corresponding liquid receiver used in the refrigerant pump needs to play the role of accumulating liquid refrigerant and transporting it to the pump chamber.

[0003] As for the existing liquid storage structure, taking the liquid storage for rolling rotor compressor as an example, an inner tube structure is provided in the liquid storage to separate gas and liquid, which is only applicable to transporting gas but cannot realize the transport of liquid refrigerant. Utility Model Content

[0004] The utility model aims to provide a liquid accumulator and a refrigerant pump, which can be suitable for pumping liquid refrigerant.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, the utility model provides a liquid accumulator, which is applied to a refrigerant pump, the refrigerant pump includes a pump body, and the liquid accumulator includes:

[0007] A shell, wherein a liquid storage cavity is provided in the shell, and the liquid storage cavity is used to store liquid refrigerant;

[0008] A liquid discharge pipe is arranged at the bottom of the shell, and the liquid discharge pipe comprises an inlet end and an outlet end, the inlet end is connected to the liquid storage cavity, and the outlet end is connected to the pump body.

[0009] As a preferred technical solution of the above-mentioned liquid reservoir, the liquid reservoir also includes an inlet pipe and a filter assembly, the inlet pipe is connected to the liquid storage cavity and is arranged on the top of the shell, and the filter assembly is arranged in the liquid storage cavity and directly faces the inlet pipe.

[0010] As a preferred technical solution of the above-mentioned liquid storage device, the filter assembly includes a filter screen and a first bracket, the first bracket is annular and connected to the inner wall of the liquid storage cavity, and the periphery of the filter screen is connected to the first bracket.

[0011] As a preferred technical solution of the above-mentioned liquid storage device, the filter assembly also includes a first crossbeam, a second crossbeam and a third crossbeam. The first crossbeam, the second crossbeam and the third crossbeam are integrally formed and Y-shaped. The first crossbeam, the second crossbeam and the third crossbeam are all fixedly connected to the inner wall of the first bracket.

[0012] As a preferred technical solution of the above-mentioned liquid reservoir, the liquid reservoir also includes a magnet and a second bracket, the magnet and the second bracket are both in a circular ring shape, the second bracket is connected to the inner wall of the liquid storage cavity, and the magnet is connected to the second bracket.

[0013] As a preferred technical solution of the above-mentioned liquid storage device, the outer peripheral surface of the second bracket is convexly provided with a plurality of clamping parts and a plurality of connecting parts, the plurality of connecting parts are fixedly connected to the inner wall of the liquid storage cavity, and the plurality of clamping parts are clamped to the magnet.

[0014] As a preferred technical solution of the above-mentioned liquid storage device, the outer diameter of the first bracket is D, the outer diameter of the second bracket is D1, and D1 and D satisfy: D1<D.

[0015] As a preferred technical solution of the above-mentioned liquid storage device, the inner diameter of the second bracket is D2, the inner diameter of the magnet is D4, and D2 and D4 satisfy: D2>D4.

[0016] As a preferred technical solution of the above-mentioned liquid storage device, the outer diameter of the magnet is D3, and D1 and D3 satisfy: D1 is 1 mm larger than D3.

[0017] On the other hand, the utility model further provides a refrigerant pump, comprising a pump body and a liquid reservoir in any of the above schemes, wherein the pump body is provided with a pump cavity, and the outlet end of the discharge pipe is connected to the pump cavity.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a liquid reservoir and a refrigerant pump, wherein the liquid reservoir is applied to the refrigerant pump, the refrigerant pump includes a pump body, the liquid reservoir includes: a shell and a discharge pipe, a liquid storage cavity is provided in the shell, the liquid storage cavity is used to store liquid refrigerant, the discharge pipe is arranged at the bottom of the shell, the discharge pipe includes an inlet end and an outlet end, the inlet end is connected to the liquid storage cavity, and the outlet end is connected to the pump body. With such arrangement, during the actual operation of the refrigerant pump, the liquid refrigerant can be transported from the bottom of the liquid reservoir to the pump cavity via the discharge pipe, that is, it is ensured that the liquid refrigerant accumulated at the bottom of the liquid reservoir flows into the pump cavity, so as to be suitable for the pumping of the liquid refrigerant, and at the same time, the first circular or Y-shaped bracket increases its flow area, reduces the resistance encountered by the liquid refrigerant when flowing here, ensures the smoothness of the transportation, and a magnet is installed at the bottom of the shell to absorb and remove pipeline impurities such as welding slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the liquid storage device provided by the utility model;

[0021] Figure 2 A schematic diagram of the structure of the filter assembly provided by the utility model;

[0022] Figure 3 A schematic diagram of the structure of the first bracket, the first crossbeam, the second crossbeam and the third crossbeam provided by the utility model;

[0023] Figure 4 A schematic diagram of the structure of the second bracket provided by the utility model;

[0024] Figure 5 A schematic diagram of the structure of the magnet provided by the utility model;

[0025] Figure 6 The structure diagram of the second bracket and the magnet provided by the utility model Figure 1 ;

[0026] Figure 7 The structure diagram of the second bracket and the magnet provided by the utility model Figure 2 ;

[0027] Figure 8 This is a structural schematic diagram of the refrigerant pump provided by the utility model.

[0028] in:

[0029] 1. Pump body; 101. Pump chamber;

[0030] 2. Shell; 21. Liquid storage chamber;

[0031] 3. Drain pipe; 4. Inlet pipe; 5. Filter; 6. First bracket; 7. First beam; 8. Second beam; 9. Third beam; 10. Magnet;

[0032] 11. Second bracket; 111. Clamping portion; 112. Connecting portion. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0035] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0038] like Figures 1 to 8 As shown, this embodiment provides a liquid reservoir, which is applied to a refrigerant pump. The refrigerant pump includes a pump body 1. The liquid reservoir includes: a shell 2 and a discharge pipe 3. A liquid storage cavity 21 is provided in the shell 2. The liquid storage cavity 21 is used to store liquid refrigerant. The discharge pipe 3 is arranged at the bottom of the shell 2. The discharge pipe 3 includes an inlet end and an outlet end. The inlet end is connected to the liquid storage cavity 21, and the outlet end is connected to the pump body 1. With such an arrangement, during the actual operation of the refrigerant pump, the liquid refrigerant can be transported from the bottom of the liquid reservoir to the pump chamber 101 via the discharge pipe 3, that is, it is ensured that the liquid refrigerant accumulated at the bottom of the liquid reservoir flows into the pump chamber 101, so as to be suitable for the pumping of liquid refrigerant.

[0039] Furthermore, in order to improve the pumping efficiency of the liquid refrigerant, the discharge pipe 3 can also be arranged in plurality, and the plurality of discharge pipes 3 are arranged at intervals, and each discharge pipe 3 is correspondingly connected to a pump chamber 101. During the operation of the refrigerant pump, the liquid refrigerant can be simultaneously transported into the pump chamber 101 of the refrigerant pump.

[0040] Optionally, the liquid storage device further includes an inlet pipe 4 and a filter assembly, wherein the inlet pipe 4 is connected to the liquid storage cavity 21 and is disposed at the top of the housing 2, and the filter assembly is disposed in the liquid storage cavity 21 and directly faces the inlet pipe 4. With such an arrangement, liquid refrigerant can be replenished into the liquid storage cavity 21 in a timely manner through the inlet pipe 4, and at the same time, the filter assembly can further filter and remove impurities from the liquid refrigerant entering the liquid storage cavity 21 to ensure the purity of the liquid refrigerant.

[0041] For further information, please refer to Figure 2 As shown, in order to enhance the connection stability and reliability of the filter 5, the filter assembly includes the filter 5 and the first bracket 6, the first bracket 6 is annular, and the first bracket 6 is connected to the inner wall of the liquid storage chamber 21, and the periphery of the filter 5 is connected to the first bracket 6. The annular structure design of the first bracket 6 also further increases the flow area of ​​the first bracket 6, effectively reducing the resistance encountered by the liquid refrigerant when flowing here, and ensuring the smoothness of the liquid refrigerant during transportation.

[0042] Optionally, see Figure 3 As shown, in order to further enhance the support stability and reliability of the first bracket 6 for the filter screen 5, the filter assembly further includes a first crossbeam 7, a second crossbeam 8 and a third crossbeam 9, which are integrally formed and Y-shaped, and are fixedly connected to the inner wall of the first bracket 6. Of course, in other embodiments, the first crossbeam 7, the second crossbeam 8 and the third crossbeam 9 can also be combined into other structural shapes, which are specifically arranged according to actual needs and are not further limited here.

[0043] It should be noted that, in this embodiment, the inlet pipe 4 and the discharge pipe 3 are both fixedly connected to the shell 2 by welding.

[0044] Optionally, the liquid reservoir further includes a magnet 10 and a second bracket 11, both of which are in a circular shape, and the second bracket 11 is connected to the inner wall of the liquid storage chamber 21, and the magnet 10 is connected to the second bracket 11. In this embodiment, the magnet 10 and the second bracket 11 are arranged at the bottom of the shell 2, that is, the magnet 10 installed at the bottom of the liquid reservoir can be used to absorb magnetic pipeline impurities such as welding slag. Specifically, the thickness of the magnet 10 is 4mm, and the second bracket 11 is made of sheet metal material with a thickness of 0.5mm.

[0045] For further information, please refer to Figures 4 to 7As shown, the outer circumferential surface of the second bracket 11 is convexly provided with a plurality of clamping parts 111 and a plurality of connecting parts 112, the plurality of connecting parts 112 are fixedly connected to the inner wall of the liquid storage chamber 21, and the plurality of clamping parts 111 are clamped to the magnet 10. Specifically, the following scheme is exemplarily given in this embodiment: the number of the clamping parts 111 and the connecting parts 112 are both three, and they are evenly distributed on the outer circumferential surface of the second bracket 11, and the connecting parts 112 are fixedly connected to the inner wall of the liquid storage chamber 21 by welding.

[0046] Optionally, the outer diameter of the first bracket 6 is D, the outer diameter of the second bracket 11 is D1, and D1 and D satisfy: D1<D.

[0047] Optionally, the inner diameter of the second bracket 11 is D2, the inner diameter of the magnet 10 is D4, and D2 and D4 satisfy: D2>D4.

[0048] Optionally, the outer diameter of the magnet 10 is D3, and D1 and D3 satisfy: D1 is 1 mm greater than D3.

[0049] Please refer to Figure 8 As shown, this embodiment further provides a refrigerant pump, including a pump body 1 and the liquid storage device in the above scheme, the pump body 1 is provided with a pump chamber 101, and the outlet end of the discharge pipe 3 is connected to the pump chamber 101.

[0050] The following is a brief description of the liquid refrigerant conveying process of the refrigerant pump provided in this embodiment:

[0051] The motor and pump body 1 of the refrigerant pump are encapsulated in an integrated housing, which is connected to the pump body 1 through an eccentric crankshaft, and an inlet and outlet are arranged on the housing. During operation, the eccentric crankshaft is rotated by the motor, and liquid refrigerant is sucked into the pump chamber 101 of the pump body 1 from the liquid storage chamber 21 of the liquid accumulator. Then, as the volume of the crescent-shaped pump chamber 101 shrinks, the liquid refrigerant is pushed and obtains a certain head and is discharged from the pump body 1, enters the housing, and is output from the outlet on the housing.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A liquid accumulator, the liquid accumulator being applied to a refrigerant pump, the refrigerant pump comprising a pump body (1), characterized in that: The liquid reservoir comprises: A shell (2), wherein a liquid storage chamber (21) is provided in the shell (2), and the liquid storage chamber (21) is used to store liquid refrigerant; A liquid discharge pipe (3), the liquid discharge pipe (3) being arranged at the bottom of the shell (2), the liquid discharge pipe (3) comprising an inlet end and an outlet end, the inlet end being connected to the liquid storage chamber (21), and the outlet end being connected to the pump body (1).

2. The liquid storage device according to claim 1, characterized in that: The liquid storage device further comprises an inlet pipe (4) and a filter assembly. The inlet pipe (4) is connected to the liquid storage cavity (21) and is arranged at the top of the shell (2). The filter assembly is arranged in the liquid storage cavity (21) and directly faces the inlet pipe (4).

3. The liquid reservoir according to claim 2, characterized in that The filter assembly comprises a filter screen (5) and a first bracket (6); the first bracket (6) is in a circular ring shape and is connected to the inner wall of the liquid storage chamber (21); and the periphery of the filter screen (5) is connected to the first bracket (6).

4. The liquid reservoir according to claim 3, characterized in that The filter assembly further comprises a first crossbeam (7), a second crossbeam (8) and a third crossbeam (9); the first crossbeam (7), the second crossbeam (8) and the third crossbeam (9) are integrally formed and Y-shaped; the first crossbeam (7), the second crossbeam (8) and the third crossbeam (9) are all fixedly connected to the inner wall of the first bracket (6).

5. The liquid reservoir according to claim 3, characterized in that: The liquid storage device further comprises a magnet (10) and a second bracket (11); the magnet (10) and the second bracket (11) are both in the shape of a ring; the second bracket (11) is connected to the inner wall of the liquid storage chamber (21); and the magnet (10) is connected to the second bracket (11).

6. The liquid reservoir according to claim 5, characterized in that The outer peripheral surface of the second bracket (11) is convexly provided with a plurality of clamping parts (111) and a plurality of connecting parts (112); the plurality of connecting parts (112) are fixedly connected to the inner wall of the liquid storage chamber (21); and the plurality of clamping parts (111) are clamped to the magnet (10).

7. The liquid reservoir according to claim 5, characterized in that The outer diameter of the first bracket (6) is D, the outer diameter of the second bracket (11) is D1, and D1 and D satisfy: D1<D.

8. The liquid reservoir according to claim 5, characterized in that The inner diameter of the second bracket (11) is D2, the inner diameter of the magnet (10) is D4, and D2 and D4 satisfy: D2>D4.

9. The liquid reservoir according to claim 7, characterized in that: The outer diameter of the magnet (10) is D3, and D1 and D3 satisfy: D1 is 1 mm larger than D3.

10. A refrigerant pump, characterized in that: It comprises a pump body (1) and a liquid reservoir as claimed in any one of claims 1 to 9, wherein the pump body (1) is provided with a pump chamber (101), and the outlet end of the discharge pipe (3) is connected to the pump chamber (101).

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