Two-section type horizontal liquid accumulator and compressor

Abstract

The utility model relates to a two-section type horizontal liquid storage device and a compressor. The two-section type horizontal liquid storage device comprises a first shell, a second shell, a gas-liquid separation baffle and a filter screen assembly. The first shell and the second shell are each of a cylindrical structure with one end open, the open end of the first shell is connected with the open end of the second shell in a sealed mode, and a liquid storage space is defined by the first shell and the second shell. One end of the first shell is communicated with a gas inlet pipe, the other end of the second shell is communicated with a gas suction pipe, the gas-liquid separation baffle is coaxially arranged in the connecting position of the first shell and the second shell, the filter screen assembly is coaxially arranged in the second shell, a first containing cavity is defined by the filter screen assembly, the gas suction pipe and the second shell, the volume of the first containing cavity is V1, and the volume of the second containing cavity is V1. The volume of the inner cavity of the second shell is V, and V1 and V meet the relation that V1 is larger than or equal to 0.3 V. The two-section type horizontal liquid storage device has the advantages of being simple in structure, capable of effectively reducing the liquid return phenomenon, high in air suction efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a two-stage horizontal liquid storage device and a compressor. Background Art

[0002] The working principle of the compressor is to use the slider to divide the cylinder into an intake chamber and an exhaust chamber. When the motor is powered on, the stator coil generates an electromagnetic field, and the rotor cuts the magnetic lines to generate power to drive the crankshaft of the pump body to rotate, causing the piston to rotate in the cylinder to compress the refrigerant. Under the action of the crankshaft, the volume of the suction and exhaust chambers is constantly changed, sucking in low-temperature and low-pressure gaseous refrigerant, compressing it into high-temperature and high-pressure gaseous refrigerant and then discharging it from the pump body, and so on. According to the installation method, compressors are mainly divided into two types: vertical compressors and horizontal compressors.

[0003] Among them, in a horizontal compressor, when the liquid reservoir inhales air, the liquid reservoir is placed horizontally, so that the sedimentation path and sedimentation space of the liquid refrigerant entering the liquid reservoir from the air inlet are reduced, resulting in an increase in the amount of liquid refrigerant entering the compressor body from the liquid reservoir, and the risk of liquid backflow in the compressor is prone to occur. In order to reduce the risk of liquid backflow, some manufacturers improve the sedimentation effect of the liquid refrigerant by installing a filter assembly inside the liquid reservoir. However, the arrangement of the filter assembly close to the air inlet of the liquid reservoir results in a small sedimentation space between the filter assembly and the air inlet. When the amount of liquid refrigerant inhaled by the air inlet of the liquid reservoir exceeds the sedimentation space, there is still a risk of liquid backflow in the compressor; and the filter assembly close to the air inlet of the liquid reservoir will also increase the air intake resistance of the liquid reservoir, reducing the overall energy efficiency of the compressor. On the other hand, the existing fixing method of the filter assembly is also cumbersome and difficult, which is not conducive to improving the production efficiency of the compressor. Utility Model Content

[0004] Based on this, the purpose of the utility model is to overcome the deficiencies of the prior art and provide a two-stage horizontal liquid storage device, which has the advantages of simple structure, effective reduction of liquid return phenomenon, high air suction efficiency, etc.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A two-stage horizontal liquid storage device comprises a first shell, a second shell, a gas-liquid separation baffle, and a filter assembly; the first shell and the second shell are both cylindrical structures with one end open, the open end of the first shell is sealed and connected to the open end of the second shell, and the first shell and the second shell form a liquid storage space; the other end of the second shell is connected to an air intake pipe, the gas-liquid separation baffle is coaxially built in the connection between the first shell and the second shell, the filter assembly is coaxially built in the second shell, and the filter assembly, the air intake pipe and the second shell form a first cavity, the volume of the first cavity is V1, the inner cavity volume of the second shell is V, and the relationship between V1 and V is: V1≥0.3V.

[0007] As an implementation manner, the volume V1 of the first cavity and the inner volume V of the second shell satisfy the relationship: V1=0.4V.

[0008] As an implementation manner, a circular ring-shaped connecting portion is coaxially arranged at one end of the opening of the second shell, and one end of the opening of the first shell is sealingly welded to the connecting portion.

[0009] As an implementation mode, the gas-liquid separation baffle is a disc-shaped baffle structure, and a separation through hole is penetrated through the gas-liquid separation baffle; the gas-liquid separation baffle is coaxially built into the inner peripheral wall of the connecting portion.

[0010] As an embodiment, the inner diameter of the connecting portion is D, the outer diameter of the first shell is D1, and the relationship between D and D1 satisfies: 0.25mm≤D-D1≤1.75mm; the outer diameter of the gas-liquid separation baffle is D2, and the relationship between D and D2 satisfies: 0.25mm≤D-D2≤1.75mm.

[0011] As an embodiment, the filter assembly includes a disc-shaped filter body, the outer periphery of the filter body is coaxially built into the inner peripheral wall of the second shell; a filter through hole is formed through the filter body, and the projection range of the filter through hole in the axial direction is separated from the projection range of the separation through hole in the axial direction. A guide portion is extended from the middle part of the filter body toward the air intake pipe in the axial direction, and the guide portion is separated from the filter through hole.

[0012] As an implementation manner, the opening area of ​​the filter through hole is S1, the opening area of ​​the separation through hole is S2, the radial area of ​​the second shell is S, and the relationship between S1, S2 and S satisfies: S1≤S2≤0.6S.

[0013] As an embodiment, the axial length of the first shell is equal to the axial length of the second shell; the second shell is sealed with an end cover at one end away from its opening, an air intake hole is coaxially penetrated through the middle of the end cover, and the air intake pipe is sealed and connected in the air intake hole.

[0014] As an embodiment, an exhaust hole is formed through the side wall of the first shell, an exhaust pipe is sealed in the exhaust hole, one end of the exhaust pipe is connected to the interior of the first shell, and the other end of the exhaust pipe extends out of the first shell.

[0015] Compared with the conventional technology, the two-stage horizontal liquid storage device of the embodiment of the utility model has the following beneficial effects:

[0016] The two-stage horizontal liquid storage device of the embodiment of the utility model makes the installation of the filter assembly and the gas-liquid separation baffle plate more convenient through the splicing design of the first shell and the second shell, which can effectively reduce the difficulty of installing the filter assembly and the gas-liquid separation baffle; further, the embodiment of the utility model designs the filter assembly away from the intake pipe so that the volume of the first cavity formed between the filter assembly and the intake pipe is at least more than 40% of the volume of the second shell, which can effectively increase the sedimentation space of the liquid-phase refrigerant, thereby reducing the risk of liquid return and intake resistance, and improving the performance of the compressor.

[0017] In addition, the utility model also provides a compressor, which includes the above-mentioned two-stage horizontal liquid accumulator. The compressor of the utility model can effectively reduce the risk of liquid return and optimize the performance of the compressor by improving the structure of the two-stage horizontal liquid accumulator.

[0018] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a two-stage horizontal liquid storage device according to an embodiment of the utility model;

[0020] Figure 2 This is one of the exploded schematic diagrams of a two-stage horizontal liquid storage device according to an embodiment of the utility model;

[0021] Figure 3 This is the second exploded schematic diagram of the two-stage horizontal liquid storage device according to the embodiment of the utility model;

[0022] Figure 4 This is an internal perspective reference diagram of a two-stage horizontal liquid storage device according to an embodiment of the present utility model.

[0023] Explanation of the reference numerals: 10, first shell; 11, exhaust hole; 12, exhaust pipe; 20, second shell; 21, connecting portion; 22, intake pipe; 23, intake hole; 30, gas-liquid separation baffle; 31, separation through hole; 40, filter assembly; 41, filter body; 42, filter through hole. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention.

[0025] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations 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 should not be understood as a limitation on the present invention.

[0026] In a horizontal compressor, when the liquid reservoir inhales air, the liquid reservoir is placed horizontally, so the sedimentation path and sedimentation space of the liquid refrigerant entering the liquid reservoir from the air inlet are reduced, resulting in an increase in the amount of liquid refrigerant entering the compressor body from the liquid reservoir, which is prone to the risk of liquid backflow in the compressor. In order to reduce the risk of liquid backflow, some manufacturers improve the sedimentation effect of the liquid refrigerant by installing a filter assembly inside the liquid reservoir. However, the filter assembly is arranged in close proximity to the air inlet of the liquid reservoir, resulting in a small sedimentation space between the filter assembly and the air inlet. When the amount of liquid refrigerant inhaled by the air inlet of the liquid reservoir exceeds the sedimentation space, there is still a risk of liquid backflow in the compressor; and the filter assembly close to the air inlet of the liquid reservoir will also increase the air intake resistance of the liquid reservoir, reducing the overall energy efficiency of the compressor. On the other hand, the existing method of fixing the filter assembly is also cumbersome and difficult, which is not conducive to improving the production efficiency of the compressor.

[0027] In view of this, an embodiment of the utility model provides a two-stage horizontal liquid storage device, which has the advantages of simple structure, effective reduction of liquid return phenomenon, high air suction efficiency, etc.

[0028] See also Figures 1 to 4The present embodiment provides a two-stage horizontal liquid storage device, comprising a first shell 10, a second shell 20, a gas-liquid separation baffle 30, and a filter assembly 40; the first shell 10 and the second shell 20 are both cylindrical structures with one end open, the open end of the first shell 10 is sealed and connected to the open end of the second shell 20, and the first shell 10 and the second shell 20 form a liquid storage space; the other end of the second shell 20 is connected and provided with an air intake pipe 22, the gas-liquid separation baffle 30 is coaxially built in the connection between the first shell 10 and the second shell 20, the filter assembly 40 is coaxially built in the second shell 20, and the filter assembly 40 and the air intake pipe 22 and the second shell 20 form a first cavity, the volume of the first cavity is V1, the inner cavity volume of the second shell 20 is V, and the relationship between V1 and V is: V1≥0.3V.

[0029] Therefore, the two-stage horizontal liquid storage device of the embodiment of the utility model, through the splicing design of the first shell 10 and the second shell 20, makes the installation of the filter assembly 40 and the gas-liquid separation baffle 30 more convenient, and can effectively reduce the difficulty of installing the filter assembly 40 and the gas-liquid separation baffle 30; further, the embodiment of the utility model designs the filter assembly 40 away from the intake pipe 22 so that the volume of the first cavity formed between the filter assembly 40 and the intake pipe 22 is at least more than 40% of the volume of the second shell 20, which can effectively increase the sedimentation space of the liquid-phase refrigerant, thereby reducing the risk of liquid return and the intake resistance, and improving the performance of the compressor.

[0030] In some embodiments of the present invention, the relationship between the first volume V1 and the inner volume V of the second shell 20 can be V1 = 0.3V, or V1 = 0.4V, or V1 = 0.5V. For example, when V1 = 0.5V, that is, the filter assembly 40 is arranged in the middle of the second shell 20, and the first volume formed between the filter assembly 40 and the suction pipe 22 serves as the first sedimentation space of the gas-liquid two-phase refrigerant, and the space between the filter assembly 40 and the gas-liquid separation baffle 30 can serve as the second sedimentation separation space of the gas-liquid two-phase refrigerant. Therefore, by setting the position of the filter assembly 40 and the gas-liquid separation baffle 30, the sedimentation effect of the liquid phase refrigerant can be further improved to reduce the undesirable phenomenon of liquid return in the compressor.

[0031] Optionally, in some embodiments of the present invention, the gas-liquid separation baffle 30 is a disc-shaped baffle structure, and a separation through hole 31 is formed through the gas-liquid separation baffle 30; the gas-liquid separation baffle 30 is coaxially built on the inner peripheral wall of the connecting portion 21. In addition, the filter assembly 40 includes a disc-shaped filter body 41, and the outer periphery of the filter body 41 is coaxially built on the inner peripheral wall of the second shell 20; a filter through hole 42 is formed through the filter body 41, and the projection range of the filter through hole 42 in the axial direction is separated from the projection range of the separation through hole 31 in the axial direction.

[0032] Furthermore, a guide portion is extended from the middle of the filter body 41 toward the air intake pipe 22 in the axial direction, and the guide portion is spaced apart from the filter through hole 42. The opening area of ​​the filter through hole 42 is S1, the opening area of ​​the separation through hole 31 is S2, the radial area of ​​the second shell 20 is S, and the relationship between S1, S2 and S satisfies: S1≤S2≤0.6S.

[0033] In some embodiments of the utility model, the side wall of the first shell 10 is provided with an exhaust hole 11, and an exhaust pipe 12 is sealed and connected to the exhaust hole 11, one end of the exhaust pipe 12 is connected to the inside of the first shell 10, and the other end of the exhaust pipe 12 extends out of the first shell 10. In addition, the axial length of the first shell 10 is equal to the axial length of the second shell 20; the end of the second shell 20 away from its opening is sealed and connected to an end cover, and an air intake hole 23 is coaxially provided in the middle of the end cover, and the air intake pipe 22 is arranged in the air intake hole 23 in a sealed manner.

[0034] Therefore, the two-stage horizontal liquid storage device of the embodiment of the utility model sucks in the refrigerant through the suction pipe 22, and performs preliminary separation on the refrigerant through the filter assembly 40, so that the liquid refrigerant part in the refrigerant settles between the filter assembly 40 and the suction pipe 22. The refrigerant passing through the filter assembly 40 can be further blocked by the gas-liquid separation baffle 30, so that most of the liquid refrigerant can be separated, thereby greatly reducing the liquid refrigerant of the refrigerant after passing through the gas-liquid separation baffle 30, and finally discharged into the compressor through the exhaust pipe 12, which can effectively reduce the risk of liquid return and suction resistance, and improve the performance of the compressor.

[0035] In some embodiments of the present invention, a circular connecting portion 21 is coaxially disposed at one end of the opening of the second shell 20, and one end of the opening of the first shell 10 is sealed and welded to the connecting portion 21. The inner diameter of the connecting portion 21 is D, the outer diameter of the first shell 10 is D1, and the relationship between D and D1 is: 0.25mm≤D-D1≤1.75mm; the outer diameter of the gas-liquid separation baffle 30 is D2, and the relationship between D and D2 is: 0.25mm≤D-D2≤1.75mm.

[0036] Among them, during the production process of the two-stage horizontal liquid storage tank of the embodiment of the utility model, the air intake pipe 22 can be firstly welded and fixed in the air intake hole 23 of the second shell 20, and the air intake pipe 22 and the air intake hole 23 are sealed and connected to ensure the good air tightness at the air intake hole 23; secondly, the filter assembly 40 is installed and fixed inside the second shell 20, for example, fixed in the middle position inside the second shell 20, and then the gas-liquid separation baffle 30 is fixed on the annular connecting portion 21, thereby making the assembly of the filter assembly 40 and the gas-liquid separation baffle 30 simple and effective, and reducing the difficulty of installation of the two. In addition, the exhaust pipe 12 is extended into the exhaust hole 11 of the first shell 10, and the exhaust pipe 12 and the exhaust hole 11 are seal-welded to ensure the airtightness at the exhaust hole 11; finally, the open end of the first shell 10 is seal-welded to the connecting portion 21 of the second shell 20, and an annular welding seal can be formed by welding, thereby strengthening the connection stability between the first shell 10 and the second shell 20 and ensuring the airtightness of the connection between the two.

[0037] In addition, the utility model also provides a compressor, which includes the above-mentioned two-stage horizontal liquid accumulator. The compressor of the utility model can effectively reduce the risk of liquid return and optimize the performance of the compressor by improving the structure of the two-stage horizontal liquid accumulator.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the two-stage horizontal liquid storage device and compressor of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A two-stage horizontal liquid storage tank, characterized in that: It includes a first shell, a second shell, a gas-liquid separation baffle, and a filter assembly; the first shell and the second shell are both cylindrical structures with an opening at one end, the open end of the first shell is sealed and connected to the open end of the second shell, and the first shell and the second shell form a liquid storage space; the other end of the second shell is connected to an intake pipe, the gas-liquid separation baffle is coaxially built in the connection between the first shell and the second shell, the filter assembly is coaxially built in the second shell, and the filter assembly, the intake pipe and the second shell form a first cavity, the volume of the first cavity is V1, the inner cavity volume of the second shell is V, and the relationship between V1 and V is: V1≥0.3V.

2. The two-stage horizontal liquid storage device according to claim 1, characterized in that: The volume V1 of the first cavity and the inner volume V of the second shell satisfy the relationship: V1=0.4V.

3. The two-stage horizontal liquid storage device according to claim 1, characterized in that: An annular connecting portion is coaxially arranged at one open end of the second shell, and one open end of the first shell is sealingly welded to the connecting portion.

4. The two-stage horizontal liquid storage device according to claim 3, characterized in that: The gas-liquid separation baffle is a disc-shaped baffle structure, and a separation through hole is formed through the gas-liquid separation baffle; the gas-liquid separation baffle is coaxially built into the inner peripheral wall of the connecting portion.

5. The two-stage horizontal liquid storage device according to claim 4, characterized in that: The inner diameter of the connecting portion is D, the outer diameter of the first shell is D1, and the relationship between D and D1 is: 0.25mm≤D-D1≤1.75mm; the outer diameter of the gas-liquid separation baffle is D2, and the relationship between D and D2 is: 0.25mm≤D-D2≤1.75mm.

6. The two-stage horizontal liquid storage device according to claim 4, characterized in that: The filter assembly includes a disc-shaped filter body, the outer periphery of which is coaxially embedded in the inner circumferential wall of the second shell; a filter through hole is penetrated through the filter body, and the projection range of the filter through hole in the axial direction is separated from the projection range of the separation through hole in the axial direction; a guide portion extends from the middle part of the filter body toward the intake pipe along the axial direction, and the guide portion is separated from the filter through hole.

7. The two-stage horizontal liquid storage device according to claim 6, characterized in that: The opening area of ​​the filter through hole is S1, the opening area of ​​the separation through hole is S2, the radial area of ​​the second shell is S, and the relationship between S1, S2 and S satisfies: S1≤S2≤0.6S.

8. The two-stage horizontal liquid storage device according to claim 1, characterized in that: The axial length of the first shell is equal to the axial length of the second shell; the second shell is sealed with an end cover at one end away from its opening, an air intake hole is coaxially penetrated through the middle of the end cover, and the air intake pipe is sealed and connected in the air intake hole.

9. The two-stage horizontal liquid storage device according to claim 1, characterized in that: An exhaust hole is formed through the side wall of the first shell, an exhaust pipe is sealed in the exhaust hole, one end of the exhaust pipe is connected to the inside of the first shell, and the other end of the exhaust pipe extends out of the first shell.

10. A compressor, characterized in that: A two-stage horizontal liquid storage device comprising any one of claims 1-9.

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