Liquid storage gas separation heat exchanger

Abstract

The utility model discloses a liquid storage gas separation heat exchanger which comprises a liquid storage tank, a gas-liquid separation assembly is arranged on the inner side of the liquid storage tank, the gas-liquid separation assembly comprises a separation tank, a refrigerant inlet pipe and a refrigerant outlet pipe are arranged on the top of the separation tank in a penetrating mode and connected through pipe fittings, and a high-pressure refrigerant inlet and a high-pressure refrigerant outlet are formed in the outer side of the liquid storage tank in a penetrating mode. The high-pressure refrigerant inlet and the high-pressure refrigerant outlet are respectively connected with the liquid storage tank through pipe fittings; the device has the advantages of being simple in structure, high in stability, small in occupied area, easy to install and maintain and high in working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and in particular relates to a liquid storage and gas separation heat exchanger. Background Art

[0002] In traditional refrigeration systems, there are usually independent devices such as liquid storage tanks, gas-liquid separators, and heat exchangers. These devices work independently and are responsible for storing refrigerant, separating gas and liquid phases, and performing heat exchange. However, this traditional method has certain shortcomings, such as large equipment footprint and high installation and maintenance costs. In addition, during the refrigeration process, due to incomplete gas-liquid separation, liquid refrigerant may enter the compressor suction pipe, affecting the working efficiency of the compressor and even causing equipment damage. Utility Model Content

[0003] The purpose of the utility model is to provide a liquid storage gas separation heat exchanger in order to solve the problems that independent equipment such as liquid storage tanks, gas-liquid separators, and heat exchangers in common refrigeration systems occupy a large area, are difficult to install and maintain, and have low working efficiency.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: it includes a liquid storage tank, a gas-liquid separation component is arranged on the inner side of the liquid storage tank, the gas-liquid separation component includes a separation tank, a refrigerant inlet pipe and a refrigerant outlet pipe are penetrated through the top of the separation tank and are connected through pipe fittings, a high-pressure refrigerant inlet and a high-pressure refrigerant outlet are penetrated through the outer side of the liquid storage tank, and the high-pressure refrigerant inlet and the high-pressure refrigerant outlet are respectively connected to the liquid storage tank through pipe fittings.

[0005] Furthermore, a connecting partition is provided between the liquid storage tank and the separation tank and connected by welding. An isolation plate is provided on the outer side of the bottom end of the separation tank, and the isolation plate is connected to the liquid storage tank and the separation tank by welding.

[0006] Furthermore, a groove is provided at the bottom of the refrigerant inlet pipe, and the groove is located at the upper half of the separation tank.

[0007] Furthermore, a U-shaped tube is fixedly provided at the bottom of the refrigerant outlet pipe, the other end of the U-shaped tube extends below the groove, and there is a distance between the tube mouth of the U-shaped tube and the bottom of the groove.

[0008] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0009] 1. In the present invention, the functions of the three devices, namely, the liquid storage device, the gas-liquid separator and the heat exchanger, are combined to form a new device, which occupies a smaller space volume;

[0010] 2. In the solution of the utility model, the low-temperature refrigerant returned to the inner side of the separation tank is used to perform heat exchange on the high-pressure liquid refrigerant in the liquid storage tank, so that the high-pressure liquid refrigerant is supercooled before leaving the liquid storage tank and entering the external thermal expansion valve. This can greatly improve the working efficiency of the compressor and effectively prevent the liquid refrigerant from entering the compressor suction pipe, thereby improving the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of local A of the utility model;

[0013] Figure 3 It is a top view of the structure of the utility model.

[0014] In the figure: 1-liquid storage tank, 2-gas-liquid separation component, 3-high-pressure refrigerant inlet, 4-high-pressure refrigerant outlet, 5-connecting partition, 6-isolation plate;

[0015] 21-separation tank, 22-refrigerant inlet pipe, 23-refrigerant outlet pipe;

[0016] 221-bevel, 223-U-shaped pipe. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Combination Figures 1 to 3 A liquid storage gas separation heat exchanger shown in the figure includes a liquid storage tank 1, an inner side of the liquid storage tank 1 is provided with a gas-liquid separation component 2, the gas-liquid separation component 2 includes a separation tank 21, a refrigerant inlet pipe 22 and a refrigerant outlet pipe 23 are penetrated through the top of the separation tank 21 and are connected by pipe fittings to facilitate the low-temperature refrigerant to enter and exit the separation tank 21, a high-pressure refrigerant inlet 3 and a high-pressure refrigerant outlet 4 are penetrated through the outer side of the liquid storage tank 1, the high-pressure refrigerant inlet 3 and the high-pressure refrigerant outlet 4 are respectively connected to the liquid storage tank 1 by pipe fittings, and are used for high-pressure liquid refrigerant to enter and exit the liquid storage tank 1, and the liquid storage tank 1 is the main part of the device, which is used to store and cool the high-pressure liquid refrigerant.

[0019] Among them, a connecting partition 5 is provided between the liquid storage tank 1 and the separation tank 21 and is connected by welding, which enhances the stability of the structure. An isolation plate 6 is provided on the outer side of the bottom end of the separation tank 21, and the isolation plate 6 is connected to the liquid storage tank 1 and the separation tank 21 by welding, which further ensures the overall stability while preventing the high-pressure liquid refrigerant from sinking to the liquid storage tank 1 and being unable to be discharged.

[0020] A groove 221 is provided at the bottom of the refrigerant inlet pipe 22 , and the groove 221 is located at the upper half of the separation tank 21 , which is helpful for gas-liquid separation and uniform distribution of the low-temperature refrigerant.

[0021] A U-shaped tube 231 is fixedly provided at the bottom of the refrigerant outlet pipe 23, and the other end of the U-shaped tube 231 extends below the groove 221. There is a distance between the tube mouth of the U-shaped tube 231 and the bottom of the groove 221, which is conducive to the flow and separation of the low-temperature refrigerant.

[0022] Working principle: When the utility model is in use, the refrigerant inlet pipe 22 sends the low-temperature refrigerant into the separation tank 21 and performs gas-liquid separation before flowing out through the refrigerant outlet pipe 23 to form a cycle. The high-pressure refrigerant inlet 3 sends the high-pressure liquid refrigerant into the liquid storage tank 1 and flows out through the high-pressure refrigerant outlet 4 to form a cycle. The low-temperature refrigerant returned to the inner side of the separation tank 21 is used to perform heat exchange on the high-pressure liquid refrigerant in the liquid storage tank 1, so that the high-pressure liquid refrigerant is supercooled before leaving the liquid storage tank 1 and entering the external thermal expansion valve, thereby greatly improving the working efficiency of the compressor.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A liquid storage gas separation heat exchanger, comprising a liquid storage tank (1), characterized in that: A gas-liquid separation component (2) is provided on the inner side of the liquid storage tank (1), and the gas-liquid separation component (2) comprises a separation tank (21). A refrigerant inlet pipe (22) and a refrigerant outlet pipe (23) are provided through the top of the separation tank (21) and are connected through pipe fittings. A high-pressure refrigerant inlet (3) and a high-pressure refrigerant outlet (4) are provided through the outer side of the liquid storage tank (1), and the high-pressure refrigerant inlet (3) and the high-pressure refrigerant outlet (4) are respectively connected to the liquid storage tank (1) through pipe fittings.

2. The liquid storage gas separation heat exchanger according to claim 1, characterized in that: A connecting partition (5) is provided between the liquid storage tank (1) and the separation tank (21) and is connected by welding. An isolation plate (6) is provided on the outer side of the bottom end of the separation tank (21). The isolation plate (6) is connected to the liquid storage tank (1) and the separation tank (21) by welding.

3. The liquid storage gas separation heat exchanger according to claim 2, characterized in that: A groove (221) is provided at the bottom of the refrigerant inlet pipe (22), and the groove (221) is located at the upper half of the separation tank (21).

4. The liquid storage gas separation heat exchanger according to claim 3, characterized in that: A U-shaped tube (231) is fixedly provided at the bottom of the refrigerant outlet pipe (23), the other end of the U-shaped tube (231) extends below the groove (221), and there is a distance between the tube mouth of the U-shaped tube (231) and the bottom of the groove (221).

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