Integrated device integrating dry liquid storage device and gas-liquid separator

Abstract

The utility model relates to an integrated device integrating a drying liquid storage device and a gas-liquid separator. The integrated device comprises a shell, and a gas distribution outlet pipe, a liquid storage outlet pipe and a drying medium which are arranged in the shell, the shell comprises a bottom shell, a containing cavity, an end socket and a refrigerant inlet. One end of the U-shaped gas distribution outlet pipe is arranged on the sealing head, the other end of the U-shaped gas distribution outlet pipe is arranged at the position, away from the bottom of the bottom shell, in the containing cavity, and a gas distribution oil return hole for lubricating oil to enter is formed in the lowest point of the bottom of the gas distribution outlet pipe. And a first filtering unit is arranged at the gas separation oil hole. One end of the liquid storage outflow pipe is vertically arranged at the bottom of the bottom shell, and the other end of the liquid storage outflow pipe is arranged on the end socket. A second filtering unit is arranged at the bottom of the stored liquid outflow pipe. A liquid separation cup is arranged at the top in the containing cavity. The dry liquid storage device and the gas-liquid separator are integrated in one shell, the structure is compact, space is saved, cost is reduced, and meanwhile assembling is convenient.

Description

Technical Field

[0001] The utility model relates to a technology in the field of refrigeration equipment, specifically an integrated device integrating a drying liquid receiver and a gas-liquid separator. Background Art

[0002] In order to simultaneously meet the refrigerant charging requirements of different modes, the existing new energy vehicle heat pump system needs to arrange two components, namely a drying liquid receiver and a gas-liquid separator. Arranging the drying liquid receiver and the gas-liquid separator simultaneously not only occupies a large space, but also increases the equipment cost, and at the same time, the installation is relatively complex and extremely inconvenient. Content of the Utility Model

[0003] Aiming at the problems that the existing new energy vehicle air conditioning system arranges a drying liquid receiver and a gas-liquid separator simultaneously, resulting in a large occupied space and high cost, the utility model provides an integrated device integrating a drying liquid receiver and a gas-liquid separator. By simultaneously providing a drying liquid storage device and a gas-liquid separator in a shell, the structure is compact, the space is saved, the cost is reduced, and at the same time, the assembly is convenient.

[0004] The utility model is realized through the following technical solutions:

[0005] The utility model includes: a shell, a gas separation outlet pipe, a liquid storage outlet pipe, and a drying medium arranged in the shell. Among them: the gas separation outlet pipe and the liquid storage outlet pipe penetrate through the shell and are arranged in the shell, and the drying medium is arranged in the shell.

[0006] The shell includes: a bottom shell, a receiving cavity, a head, and a refrigerant inlet. Among them: the receiving cavity is arranged in the bottom shell, the head is arranged on the top of the bottom shell, and the refrigerant inlet is arranged on the head.

[0007] The gas separation outlet pipe is U-shaped, one end is arranged on the head, and the other end is arranged in the receiving cavity away from the bottom of the bottom shell. The lowest point of the bottom of the gas separation outlet pipe is provided with a gas separation oil return hole for lubricating oil to enter.

[0008] A first filtering unit is arranged at the gas separation oil return hole.

[0009] The liquid storage outlet pipe is cylindrical, one end of the liquid storage outlet pipe is vertically arranged on the bottom of the bottom shell, and the other end is arranged on the head.

[0010] A second filtering unit is arranged at the bottom of the liquid storage outlet pipe.

[0011] A liquid separation cup is arranged at the top of the receiving cavity. Among them: the liquid separation cup is buckled under the head and is arranged between one end of the gas separation outlet pipe arranged in the receiving cavity and the refrigerant inlet.

[0012] The edge of the liquid separation cup is provided with a downwardly bent flange, where: the bottom end height of the flange is lower than the end of the gas separation outlet pipe disposed in the accommodation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0014] Figure 2 is a schematic structural diagram of Embodiment 2 of the present utility model;

[0015] Figure 3 is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0016] Figure 4 is a state diagram of Embodiment 1 of the present utility model for realizing the function of dry liquid storage;

[0017] Figure 5 is a state diagram of Embodiment 1 of the present utility model for realizing the function of gas-liquid separation;

[0018] In the figure: housing 1, refrigerant inlet 2, bottom case 3, head 4, gas separation outlet pipe 5, gas separation oil return hole 6, first filtration unit 7, liquid storage outlet pipe 8, second filtration unit 9, drying medium 10, liquid separation cup 11, flange 12, inlet 13 of the gas separation outlet pipe, outlet 14 of the gas separation outlet pipe, outlet 15 of the liquid storage outlet pipe, inlet 16 of the liquid storage outlet pipe, bottom end 17 of the liquid separation cup, accommodation cavity 18. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] As Figure 1 shown, this embodiment relates to an integrated device integrating a dry liquid storage device and a gas-liquid separator, which includes: a housing 1 and a gas separation outlet pipe 5, a liquid storage outlet pipe 8, and a drying medium 10 disposed in the housing 1, where: the gas separation outlet pipe 5 and the liquid storage outlet pipe 8 pass through the housing 1 and are disposed in the housing 1, and the drying medium 10 is disposed in the housing 1.

[0020] The housing 1 includes: a bottom case 3, an accommodation cavity 18, a head 4, and a refrigerant inlet 2, where: the top of the bottom case 3 is open, the accommodation cavity 18 is disposed in the bottom case 3, the head 4 is disposed at the top opening of the bottom case 3 to seal the accommodation cavity to prevent the refrigerant in the accommodation cavity from leaking, the refrigerant inlet 2 is disposed on the head 4, and the refrigerant inlet 2, the gas separation outlet pipe 5, and the liquid storage outlet pipe 8 are all disposed on the head 4.

[0021] The described gas separation outlet pipe 5 is U-shaped, with one end disposed on the head 4 and the other end disposed inside the accommodation cavity 18 away from the bottom of the bottom case 3. At the lowest point of the bottom of the gas separation outlet pipe 5, there is a gas separation oil return hole 6 for the lubricating oil to enter. The gas separation oil return hole 6 penetrates through the gas separation outlet pipe 5 and the accommodation cavity 18. The refrigerant flowing into the housing 1 from the refrigerant inlet 2 carries lubricating oil. At the bottom of the accommodation cavity 18 is a mixture of lubricating oil and liquid refrigerant. The gas separation oil return hole 6 is immersed in the mixture. The high-speed refrigerant gas in the U-shaped gas separation outlet pipe 5 carries the mixture of the gas separation oil return hole 6 back to the compressor. At the same time, new mixture is replenished to the gas separation oil return hole 6.

[0022] A first filtering unit 7 is provided at the gas separation oil return hole 6. The first filtering unit 7 can filter the mixture of lubricating oil and liquid refrigerant entering the gas separation outlet pipe 5. The mixture first passes through the first filtering unit 7 and then enters the gas separation outlet pipe 5.

[0023] The described liquid storage outlet pipe 8 is cylindrical. One end of the liquid storage outlet pipe 8 is vertically disposed on the bottom of the bottom case 3, and the other end is disposed on the head 4.

[0024] A second filtering unit 9 is provided at the bottom of the liquid storage outlet pipe 8. The second filtering unit 9 can filter the liquid refrigerant entering the liquid storage outlet pipe 8 from the accommodation cavity 18, filtering out the impurities in the liquid refrigerant to avoid damage to the air-conditioning system by the impurities.

[0025] A liquid separation cup 11 is provided at the top inside the accommodation cavity 18. Specifically: The liquid separation cup 11 is buckled under the head 4 and is disposed between the end of the gas separation outlet pipe 5 disposed inside the accommodation cavity 18 and the refrigerant inlet 2. On the one hand, the liquid separation cup 11 can disperse the refrigerant flowing into the accommodation cavity 18 from the refrigerant inlet 2, enabling the refrigerant to fully contact the drying medium 10 and improving the drying effect. On the other hand, the liquid separation cup 11 can block above the outlet 14 of the gas separation outlet pipe, preventing the refrigerant flowing in from the refrigerant inlet 2 from directly entering the gas separation outlet pipe 5 from the outlet 14 of the gas separation outlet pipe.

[0026] A folded edge 12 that bends downward is provided at the edge of the liquid separation cup 11. Specifically: The bottom end height of the folded edge 12 is lower than the end of the gas separation outlet pipe 5 disposed inside the accommodation cavity 18, playing a role of guiding the flow, buffering the refrigerant, and preventing the refrigerant from flowing too fast.

[0027] The described drying medium 10 is used to dry the refrigerant and can be a molecular sieve bag. After the refrigerant flows into the accommodation cavity 18 of the housing 1 from the refrigerant inlet 2, the drying medium 10 dries the refrigerant.

[0028] The refrigerant flowing into the accommodation chamber 18 from the refrigerant inlet 2 is gaseous refrigerant, liquid refrigerant or gas-liquid mixed refrigerant. Specifically, according to the functions achieved by the integrated device and the operating states of the air-conditioning system, the form of the refrigerant and the content of each component in the refrigerant will vary. The gaseous refrigerant in the accommodation chamber 18 floats on the top of the accommodation chamber 18, and the liquid refrigerant in the accommodation chamber sinks to the bottom of the accommodation chamber 18.

[0029] As Figure 1 shown, the gaseous refrigerant floats on the upper part of the accommodation chamber 18. The outlet 14 of the gas separation outflow pipe is relatively close to the top of the accommodation chamber, so that the gaseous refrigerant in the accommodation chamber 18 can enter the gas separation outflow pipe 5 from the outlet 14 of the gas separation outflow pipe and flow out from the inlet 13 of the gas separation outflow pipe. The inlet 13 of the gas separation outflow pipe is connected to other components of the air-conditioning system, such as a compressor.

[0030] The liquid refrigerant sinks to the bottom of the accommodation chamber 18. The inlet 16 of the liquid storage outflow pipe is relatively close to the bottom of the accommodation chamber 18, so that the liquid refrigerant at the bottom of the accommodation chamber 18 flows into the liquid storage outflow pipe 30 from the inlet 16 of the liquid storage outflow pipe and flows out from the outlet 15 of the liquid storage outflow pipe. The outlet 15 of the liquid storage outflow pipe is connected to other components of the air-conditioning system, such as an evaporator.

[0031] The working process of this device is as follows:

[0032] Realization of the drying and liquid storage function: The high-temperature and high-pressure refrigerant after condensation enters the accommodation chamber 18 inside the housing 1 from the refrigerant inlet 2 and flows onto the liquid separation cup 11. The liquid separation cup 11 disperses the refrigerant, and the drying medium 10 dries the moisture in the refrigerant. The liquid refrigerant is stored in the middle and lower positions in the accommodation chamber 18. After being filtered by the second filtering unit 9, it goes out through the liquid storage outflow pipe 8. When the integrated device performs the drying and liquid storage operation, the inside of the housing 1 is in a high-pressure state (the high-pressure state refers to the pressure of the refrigerant). At this time, the outlet of the gas separation outflow pipe 5 is closed, and the refrigerant can only flow out through the liquid storage outflow pipe 8, realizing the drying and liquid storage function.

[0033] Realization of gas-liquid separation function: The refrigerant in a gas-liquid mixed state after evaporation enters the accommodation cavity inside the housing 1 from the refrigerant inlet 2 and flows onto the liquid separation cup 11. The liquid separation cup 11 disperses the refrigerant, and the drying medium 10 dries the moisture in the refrigerant. Gas-liquid separation is achieved through centrifugal force (the refrigerant generates centrifugal force when moving at high speed under the action of the compressor). The liquid refrigerant and lubricating oil drop to the bottom of the housing 1. The gaseous refrigerant in the upper-middle part of the housing 1 exits through the gas separation outlet pipe 5. The lubricating oil is filtered by the first filtering unit 7 and flows into the gas separation outlet pipe 5 through the gas separation oil return hole 6 on the gas separation outlet pipe 5, and returns to the compressor through the gas separation outlet pipe 5. When the integrated device performs gas-liquid separation operation, the inside of the housing 1 is in a low-pressure state (refrigerant pressure). At this time, the outlet of the liquid storage outlet pipe 8 is closed, and the refrigerant can only flow out through the gas separation outlet pipe 5, realizing the gas-liquid separation function.

[0034] Embodiment 2

[0035] As Figure 2 shown, an integrated device integrating a drying liquid reservoir and a gas-liquid separator involved in this embodiment has the same overall structure as that in Embodiment 1. The differences are as follows:

[0036] The position of the inlet 13 of the gas separation outlet pipe on the housing 1 is not limited, and its shape does not have to be U-shaped. The inlet 13 of the gas separation outlet pipe can be arranged at the top of the housing 1, or at the bottom or side wall of the housing 1.

[0037] The position of the outlet 15 of the liquid storage outlet pipe on the housing 1 is not limited. The outlet 15 of the liquid storage outlet pipe can be arranged at the top of the housing 1, or at the bottom of the housing 1, or on the side wall of the housing 1. The arrangement of the liquid storage outlet pipe 8 enables the liquid refrigerant in the accommodation cavity of the housing 1 to flow out through the liquid storage outlet pipe 8, and the gaseous refrigerant remains in the accommodation cavity 18, realizing the function of the drying liquid reservoir.

[0038] As Figure 2 shown, the liquid storage outlet pipe 8 penetrates into the accommodation cavity 18 of the housing 1 from the bottom of the housing 1, and the outlet 15 of the liquid storage outlet pipe is arranged at the bottom of the housing 1.

[0039] Compared with the prior art, the device in this embodiment adopts the arrangement of the liquid separation cup, making the flow path of the refrigerant in the cavity more reasonable and more practical, and solving the problems of large occupied space and high cost caused by arranging the drying liquid reservoir and the gas-liquid separator in the air-conditioning system at the same time.

[0040] The above specific implementation can be locally adjusted by those skilled in the art in different ways without departing from the principles and purposes of the present invention. The protection scope of the present invention is subject to the claims and is not limited by the above specific implementation. All implementation schemes within its scope are restricted by the present invention.

Claims

1. An integrated device combining a drying accumulator and a gas-liquid separator, characterized in that Comprising: A housing and an air separation outlet pipe, a liquid storage outlet pipe, and a drying medium disposed within the housing, wherein: the air separation outlet pipe and the liquid storage outlet pipe penetrate the housing and are disposed within the housing, and the drying medium is disposed within the housing; The said housing comprises: a bottom shell, a receiving cavity, a head, and a refrigerant inlet, wherein: the receiving cavity is disposed within the bottom shell, the head is disposed at the top of the bottom shell, and the refrigerant inlet is disposed on the head.

2. The integrated device according to claim 1, characterized in that, The air separation outlet pipe is U-shaped, one end is disposed on the head, and the other end is disposed within the receiving cavity away from the bottom of the bottom shell. At the lowest point of the bottom of the air separation outlet pipe, there is an air separation oil return hole for the lubricating oil to enter.

3. The integrated device according to claim 2, characterized in that, A first filtering unit is provided at the air separation oil return hole.

4. The integrated device according to claim 1, characterized in that, The liquid storage outlet pipe is cylindrical, one end of the liquid storage outlet pipe is vertically disposed on the bottom of the bottom shell, and the other end is disposed on the head.

5. The integrated device according to claim 4, characterized in that, A second filtering unit is provided at the bottom of the liquid storage outlet pipe.

6. The integrated device according to claim 1, characterized in that, At the top within the receiving cavity, there is a liquid separation cup, wherein: the liquid separation cup is buckled under the head and is disposed between one end of the air separation outlet pipe disposed within the receiving cavity and the refrigerant inlet.

7. The integrated device according to claim 6, characterized in that, The edge of the said liquid separation cup is provided with a downwardly bent flange, wherein: the bottom end height of the flange is lower than one end of the air separation outlet pipe disposed within the receiving cavity.

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