Double-suction liquid accumulator and compressor

Abstract

The utility model relates to the technical field of compressors, in particular to a double-suction liquid accumulator and a compressor. Wherein the partition plate is arranged in the barrel and divides the barrel into a high-pressure air chamber and a low-pressure air chamber, the two ends of the high-pressure air chamber are connected with the first bent pipe and the first air inlet pipe respectively, the two ends of the low-pressure air chamber are connected with the second bent pipe and the second air inlet pipe respectively, and the bending directions of the first bent pipe and the second bent pipe are the same. The diameter of the first bent pipe is smaller than that of the second bent pipe, and the air outlet end of the first bent pipe is inserted into the second bent pipe so that high-pressure air flow of the high-pressure air chamber and low-pressure air flow of the low-pressure air chamber can be mixed. By inserting the air outlet end of the first bent pipe into the second bent pipe, a high-pressure refrigerant and a low-pressure refrigerant can be mixed to form a refrigerant with intermediate pressure to enter the compression air cylinder, so that one air cylinder can process the refrigerants under different pressures at the same time, the structure of the compressor is simplified, and the universality of the compressor is improved.

Description

Technical Field

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

[0002] For conventional rolling rotor compressors, one liquid reservoir can only correspond to one refrigerant under one suction pressure at the same time, that is, one liquid reservoir corresponds to one cylinder. When the compressor has to face two different working conditions at the same time, due to the different suction pressures, the compressor needs to have two liquid reservoirs and cylinders. The structure of two liquid reservoirs and two cylinders will make the compressor structure complicated. At the same time, the compressor is large in size, high in cost, and reduced in versatility.

[0003] Therefore, there is an urgent need for a double-suction liquid storage device and a compressor to solve the above-mentioned technical problems. Utility Model Content

[0004] The utility model aims to provide a double-suction liquid storage device and a compressor, which can simultaneously process refrigerants under different pressures, simplify the compressor structure, and improve the versatility of the compressor.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A double-intake liquid storage device comprises a cylinder, a partition, a first bend, a first air inlet pipe, a second bend and a second air inlet pipe, wherein the partition is arranged inside the cylinder, and the partition divides the cylinder into a high-pressure air chamber and a low-pressure air chamber, the two ends of the high-pressure air chamber are respectively connected to the first bend and the first air inlet pipe, the two ends of the low-pressure air chamber are respectively connected to the second bend and the second air inlet pipe, the first bend and the second bend have the same bending direction, the diameter of the first bend is smaller than the diameter of the second bend, and the air outlet end of the first bend is inserted into the second bend to mix the high-pressure airflow of the high-pressure air chamber and the low-pressure airflow of the low-pressure air chamber.

[0007] As a preferred technical solution of the above-mentioned double-suction liquid storage device, the air outlet end of the first curved pipe is coaxially arranged with the air outlet end of the second curved pipe.

[0008] As a preferred technical solution of the above-mentioned double-suction liquid storage device, the air outlet end of the first curved pipe is provided with a first throttling portion, and the second curved pipe is provided with a second throttling portion.

[0009] As a preferred technical solution of the above-mentioned double-intake liquid storage device, at least one of the first throttling part and the second throttling part includes a necking part and a diffuser part, the diameter of the necking part gradually decreases along the airflow direction, and the diameter of the diffuser part gradually increases along the airflow direction.

[0010] As a preferred technical solution of the above-mentioned double-suction liquid storage device, at least one of the first throttling part and the second throttling part is provided with a filler, and the filler can make the diameters of the first throttling part and the second throttling part first decrease and then increase.

[0011] As a preferred technical solution of the above-mentioned double-suction liquid storage device, the first curved pipe is welded to the second curved pipe.

[0012] As a preferred technical solution of the above-mentioned double-suction liquid storage device, the outer diameter of the air outlet end of the first curved pipe is at least 4 mm smaller than the inner diameter of the air outlet end of the second curved pipe.

[0013] As a preferred technical solution of the above-mentioned double-suction liquid storage device, the first curved pipe and the second curved pipe are both made of copper.

[0014] As a preferred technical solution of the above-mentioned double-suction liquid storage device, filters are provided in both the high-pressure air chamber and the low-pressure air chamber.

[0015] A compressor, comprising a housing, a motor assembly and a pump body, the compressor also comprising a double-suction air-liquid reservoir in any of the above-mentioned preferred technical solutions, the double-suction air-liquid reservoir is connected to the housing, the motor assembly and the pump body are both arranged in the housing, the motor assembly is connected to the pump body, the motor assembly is used to drive the pump body to work, and the second bend pipe passes through the housing and is connected to the pump body.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a double-intake liquid storage device. The double-intake liquid storage device includes a cylinder, a partition, a first bend pipe, a first air inlet pipe, a second bend pipe and a second air inlet pipe. The partition is arranged inside the cylinder, and the partition divides the cylinder into a high-pressure air chamber and a low-pressure air chamber. The two ends of the high-pressure air chamber are respectively connected to the first bend pipe and the first air inlet pipe, and the two ends of the low-pressure air chamber are respectively connected to the second bend pipe and the second air inlet pipe. The bending directions of the first bend pipe and the second bend pipe are the same, the diameter of the first bend pipe is smaller than the diameter of the second bend pipe, and the air outlet end of the first bend pipe is inserted into the second bend pipe to mix the high-pressure airflow of the high-pressure air chamber and the low-pressure airflow of the low-pressure air chamber. By inserting the air outlet end of the first bend pipe into the second bend pipe, the high-pressure refrigerant and the low-pressure refrigerant can be mixed to form a refrigerant of intermediate pressure to enter the compression cylinder, so that one cylinder can simultaneously process refrigerants under different pressures, simplify the compressor structure, and improve the versatility of the compressor.

[0018] The utility model also provides a compressor, which includes a housing, a motor assembly, a pump body and a double-suction liquid reservoir, the double-suction liquid reservoir is connected to the housing, the motor assembly and the pump body are both arranged in the housing, the motor assembly is connected to the pump body, the motor assembly is used to drive the pump body to work, and the second elbow passes through the housing and is connected to the pump body. Compared with the prior art, the double-suction liquid reservoir can simultaneously process refrigerants under different pressures, simplify the compressor structure, reduce the size of the compressor, enable the compressor to be used in a variety of scenarios, and improve the versatility of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the structure of a double-suction liquid storage device provided in an embodiment of the utility model;

[0021] Figure 2 A cross-sectional view of a double-suction liquid storage device provided by an embodiment of the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of middle A.

[0023] In the figure:

[0024] 1. Cylinder; 11. High-pressure air chamber; 12. Low-pressure air chamber; 2. Partition; 3. First elbow; 31. First throttling section; 32. Filler; 4. First air inlet pipe; 5. Second elbow; 51. Narrowing section; 52. Diffuser; 53. Second throttling section; 6. Second air inlet pipe. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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 the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is 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 that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0029] like Figures 1 to 3 As shown, the utility model provides a double-intake liquid storage device and a compressor. The double-intake liquid storage device comprises a cylinder 1, a partition 2, a first elbow 3, a first air inlet pipe 4, a second elbow 5 and a second air inlet pipe 6.

[0030] Specifically, Figure 1 and Figure 2As shown, the partition 2 is arranged inside the cylinder 1, and the partition 2 divides the cylinder 1 into a high-pressure air chamber 11 and a low-pressure air chamber 12. The two ends of the high-pressure air chamber 11 are respectively connected to the first elbow 3 and the first air inlet pipe 4, and the two ends of the low-pressure air chamber 12 are respectively connected to the second elbow 5 and the second air inlet pipe 6. The bending directions of the first elbow 3 and the second elbow 5 are the same, the diameter of the first elbow 3 is smaller than the diameter of the second elbow 5, and the outlet end of the first elbow 3 is inserted into the second elbow 5 to mix the high-pressure airflow of the high-pressure air chamber 11 and the low-pressure airflow of the low-pressure air chamber 12. By inserting the outlet end of the first elbow 3 into the second elbow 5, the high-pressure refrigerant and the low-pressure refrigerant can be mixed to form a refrigerant of intermediate pressure to enter the compression cylinder, so that one cylinder can simultaneously process refrigerants under different pressures, simplify the compressor structure, and improve the versatility of the compressor.

[0031] Preferably, the outlet end of the first curved pipe 3 is coaxially arranged with the outlet end of the second curved pipe 5. Specifically, the diameter of the outlet end of the first curved pipe 3 is smaller than the diameter of the outlet end of the second curved pipe 5, and the outlet end of the first curved pipe 3 is concentrically connected with the outlet end of the second curved pipe 5 to form a sleeve, which can make the low-pressure refrigerant flow out evenly from the gap between the first curved pipe 3 and the second curved pipe 5. At the same time, the sleeve can form an ejector effect, so that the high-pressure refrigerant ejects the low-pressure refrigerant, so that the high-pressure refrigerant and the low-pressure refrigerant are fully mixed to form a refrigerant of intermediate pressure to enter the compression cylinder.

[0032] Optionally, the outer diameter of the outlet end of the first bend pipe 3 is at least 4 mm smaller than the inner diameter of the outlet end of the second bend pipe 5, so that the gap between the outer wall of the outlet end of the first bend pipe 3 and the inner wall of the second bend pipe 5 is at least 2 mm, so that the low-pressure refrigerant can flow out from the gap between the outer wall of the outlet end of the first bend pipe 3 and the inner wall of the second bend pipe 5.

[0033] Optionally, the first bend pipe 3 and the second bend pipe 5 are both made of copper and can withstand the high pressure of the airflow. At the same time, the first bend pipe 3 and the second bend pipe 5 are copper pipes, which can prevent one bend pipe or the second bend pipe 5 from being damaged and avoid refrigerant leakage.

[0034] Optionally, the first curved pipe 3 and the second curved pipe 5 are welded to improve the sealing performance of the sleeve and prevent the refrigerant from leaking into the environment.

[0035] Preferably, if Figure 3 As shown, the first bend pipe 3 is provided with a first throttling portion 31 at the outlet end, and the second bend pipe 5 is provided with a second throttling portion 53. Specifically, since the refrigerant flowing through the first bend pipe 3 and the second bend pipe 5 has a high pressure and a fast flow rate, the first bend pipe 3 is provided with a first throttling portion 31 at the outlet end, and the second bend pipe 5 is provided with a second throttling portion 53 at the outlet end, the flow rate of the refrigerant flowing out of the first bend pipe 3 and the second bend pipe 5 can be reduced, the pressure of the refrigerant flowing out of the first bend pipe 3 and the second bend pipe 5 can be reduced, the stability of the refrigerant flowing out of the first bend pipe 3 and the second bend pipe 5 can be improved, and the refrigerant flowing out of the first bend pipe 3 and the second bend pipe 5 can be fully mixed.

[0036] Preferably, at least one of the first throttling portion 31 and the second throttling portion 53 includes a constriction portion 51 and a diffuser portion 52, the diameter of the constriction portion 51 gradually decreases along the airflow direction, and the diameter of the diffuser portion 52 gradually increases along the airflow direction. Specifically, in this embodiment, the second elbow 5 is provided with a constriction portion 51 downstream of the outlet end of the first elbow 3, the diameter of the constriction portion 51 gradually decreases along the airflow direction, and the low-pressure refrigerant is ejected to the constriction portion 51 by the injection effect of the intermediate high-pressure refrigerant, so that the high-pressure refrigerant and the low-pressure refrigerant are mixed into the intermediate pressure refrigerant and enter the compression cylinder; the diffuser portion 52 is an open structure, and the diameter of the diffuser portion 52 gradually increases along the airflow direction, so that the intermediate pressure refrigerant can diffuse and enter the compression cylinder at a uniform speed, thereby improving the stability of the compressor operation.

[0037] Optionally, in this embodiment, the minimum diameters of the constricted portion 51 and the diffuser 52 are the same, and the constricted portion 51 and the diffuser 52 are integrated by using the tube shrinking technology, which can ensure the sealing of the second elbow 5. Of course, in some other embodiments, the second throttle portion 53 can be provided separately, and the two ends of the second throttle portion 53 are respectively connected to the constricted portion 51 and the diffuser 52.

[0038] Optionally, at least one of the first throttle portion 31 and the second throttle portion 53 is provided with a filler 32, and the filler 32 can make the diameter of the first throttle portion 31 and the second throttle portion 53 first decrease and then increase. Specifically, in this embodiment, the filler 32 is provided in the first throttle portion 31, so that the diameter of the first throttle portion 31 is first decreased and then increased, which can reduce the flow rate of the refrigerant flowing out of the first elbow 3, reduce the pressure of the refrigerant flowing out of the first elbow 3, improve the stability of the refrigerant flowing out of the first elbow 3, and make the refrigerant flowing out of the first elbow 3 more easily mixed with the refrigerant flowing out of the second elbow 5.

[0039] Of course, in some other embodiments, the first throttling portion 31 and the second throttling portion 53 can both be integrally formed using the shrink tube technology; the first throttling portion 31 and the second throttling portion 53 can also both be provided with a filler 32; the first throttling portion 31 is integrally formed using the shrink tube technology and the second throttling portion 53 is provided with a filler 32 and other structural forms.

[0040] Preferably, filters are provided in both the high-pressure air chamber 11 and the low-pressure air chamber 12 to filter impurities in the refrigerant, prevent foreign matter from entering the compression cylinder, and prevent damage to the compressor.

[0041] The utility model also provides a compressor, which includes a shell, a motor assembly and a pump body, and is characterized in that the compressor also includes the double-suction liquid reservoir in the above embodiment, the double-suction liquid reservoir is connected to the shell, the motor assembly and the pump body are both arranged in the shell, the motor assembly is connected to the pump body, the motor assembly is used to drive the pump body to work, the second bend pipe 5 passes through the shell and is connected to the pump body, and the compressor also includes other necessary components that constitute the compressor in the prior art.

[0042] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. Double suction liquid storage device, characterized in that: The invention comprises a cylinder (1), a partition (2), a first curved pipe (3), a first air inlet pipe (4), a second curved pipe (5) and a second air inlet pipe (6); the partition (2) is arranged inside the cylinder (1), and the partition (2) divides the cylinder (1) into a high-pressure air chamber (11) and a low-pressure air chamber (12); the two ends of the high-pressure air chamber (11) are respectively connected to the first curved pipe (3) and the first air inlet pipe (4); the two ends of the low-pressure air chamber (12) are respectively connected to the second curved pipe (5) and the second air inlet pipe (6); the first curved pipe (3) and the second curved pipe (5) have the same bending direction; the diameter of the first curved pipe (3) is smaller than the diameter of the second curved pipe (5); the air outlet end of the first curved pipe (3) is inserted into the second curved pipe (5) so that the high-pressure airflow of the high-pressure air chamber (11) and the low-pressure airflow of the low-pressure air chamber (12) are mixed.

2. The double-suction liquid storage device according to claim 1, characterized in that: The gas outlet end of the first curved pipe (3) and the gas outlet end of the second curved pipe (5) are coaxially arranged.

3. The double-suction liquid storage device according to claim 1, characterized in that: The air outlet end of the first curved pipe (3) is provided with a first throttling portion (31), and the second curved pipe (5) is provided with a second throttling portion (53).

4. The double-suction liquid storage device according to claim 3, characterized in that: At least one of the first throttling portion (31) and the second throttling portion (53) comprises a necking portion (51) and a diffuser portion (52), wherein the diameter of the necking portion (51) gradually decreases along the direction of airflow, and the diameter of the diffuser portion (52) gradually increases along the direction of airflow.

5. The double-suction liquid storage device according to claim 3, characterized in that: At least one of the first throttling portion (31) and the second throttling portion (53) is provided with a filler (32), and the filler (32) can cause the diameters of the first throttling portion (31) and the second throttling portion (53) to first decrease and then increase.

6. The double-suction liquid storage device according to any one of claims 1 to 5, characterized in that: The first curved pipe (3) and the second curved pipe (5) are welded.

7. The double-suction liquid storage device according to any one of claims 1 to 5, characterized in that: The outer diameter of the gas outlet end of the first curved pipe (3) is at least 4 mm smaller than the inner diameter of the gas outlet end of the second curved pipe (5).

8. The double-suction liquid storage device according to any one of claims 1 to 5, characterized in that: The first curved pipe (3) and the second curved pipe (5) are both made of copper.

9. The double-suction liquid storage device according to any one of claims 1 to 5, characterized in that: Filter screens are provided in both the high-pressure air chamber (11) and the low-pressure air chamber (12).

10. A compressor, comprising a housing, a motor assembly and a pump body, characterized in that: The compressor also includes a double-suction liquid reservoir as described in any one of claims 1 to 9, wherein the double-suction liquid reservoir is connected to the outer shell, the motor assembly and the pump body are both arranged in the outer shell, the motor assembly is connected to the pump body, and the motor assembly is used to drive the pump body to work, and the second curved pipe (5) passes through the outer shell and is connected to the pump body.

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