WO2021068632A1

WO2021068632A1 - Gas-liquid separator and compression system

Info

Publication number: WO2021068632A1
Application number: PCT/CN2020/107440
Authority: WO
Inventors: 田鹏; 陈永杰; 虞晓辉
Original assignee: 浙江盾安人工环境股份有限公司
Priority date: 2019-10-12
Filing date: 2020-08-06
Publication date: 2021-04-15
Also published as: US20230243559A1; CN112648762B; JP2022550953A; CN112648762A

Abstract

A gas-liquid separator and a compression system, the gas-liquid separator being provided with an outer cylinder (10), an input pipe (20), an output pipe (30), and a blocking part (40); part of the input pipe (20) is inserted into the outer cylinder (10), an inlet of the input pipe (20) being positioned outside the outer cylinder (10), and an outlet of the input pipe (20) being positioned inside the outer cylinder (10); part of the output pipe (30) is inserted into the outer cylinder (10), an inlet of the output pipe (30) being positioned inside the outer cylinder (10), an outlet of the output pipe (30) being positioned outside the outer cylinder (10), and the arrangement position of the inlet of the output pipe (30) being higher than the arrangement position of the outlet of the input pipe (20); the blocking part (40) is arranged in the outer cylinder (10), the blocking part (40) being positioned between the inlet of the output pipe (30) and the outlet of the input pipe (20) in order to separate the inlet of the output pipe (30) from the outlet of the input pipe (40); thus, large-particle liquid state refrigerant or other liquids outputted from the outlet of the input pipe (20) can be blocked by means of the blocking part (40), preventing the large-particle liquid from splashing into the inlet of the output pipe (30), improving the gas-liquid separation effect of the gas-liquid separator and thereby preventing liquid slugging from damaging the compressor.

Description

Gas-liquid separator and compression system

Technical field

This application relates to the technical field of gas-liquid separators, and specifically, to a gas-liquid separator and a compression system.

Background technique

The compression system includes a gas-liquid separator and a compressor that communicate with each other. The gas-liquid mixed fluid is separated by the gas-liquid separator, and the separated gas enters the compressor for compression. The gas-liquid separation effect of the existing gas-liquid separator is limited. When the system has a high degree of subcooling, some large-particle liquid refrigerants or other liquids cannot be separated from the gaseous refrigerant, and some large-particle liquids will be separated from the gaseous refrigerant. The gas-liquid separator flows into the compressor, causing liquid shock to damage the compressor.

Application content

The present application provides a gas-liquid separator and a compression system to solve the problem of poor gas-liquid separation effect of the gas-liquid separator in the prior art.

In order to solve the above-mentioned problems, according to one aspect of the present application, the present application provides a gas-liquid separator, comprising: an outer cylinder; an input tube, a part of the input tube penetrates the outer cylinder, and the input tube The inlet is located outside the outer cylinder, the outlet of the input pipe is located inside the outer cylinder; the output pipe, a part of the output pipe penetrates the outer cylinder, and the inlet of the output pipe is located at the Inside the outer cylinder, the outlet of the output pipe is located outside the outer cylinder, and the setting position of the inlet of the output pipe is higher than the setting position of the outlet of the input pipe; the blocking part is arranged on the outer cylinder Inside, the blocking part is located between the inlet of the output pipe and the outlet of the input pipe to separate the inlet of the output pipe from the outlet of the input pipe.

Further, the blocking portion has an escape hole that communicates an area above the blocking portion with an area below the blocking portion.

Further, the blocking portion has a plate-shaped structure, and the periphery of the blocking portion is connected with the inner wall of the outer cylinder; in the radial direction of the outer cylinder, the area of the avoiding hole is smaller than that of the blocking portion. The area of the physical part.

Further, the distance between the outlet of the input pipe and the edge of the escape hole is greater than the outer diameter of the input pipe.

Further, the inlet of the output pipe and the outlet of the output pipe are both located above the blocking portion, the blocking portion has a limiting hole, and the output tube passes through the limiting hole to pass through the The inner wall of the limiting hole limits the output tube.

Further, the input pipe includes a vertical section and a horizontal section that are connected to each other, wherein the inlet of the input pipe is located at the end of the vertical section, and the outlet of the input pipe is located at the end of the horizontal section. , The outlet of the input pipe faces the inner wall of the outer cylinder.

Further, the output pipe has a U-shaped structure, and the gas-liquid separator further includes a filter assembly arranged at the bottom of the output pipe.

Further, the gas-liquid separator further includes a reinforcing plate arranged in the outer cylinder, and the bottom of the output tube passes through the reinforcing plate to fix the output tube through the reinforcing plate.

Further, the outer cylinder includes an upper cover, a middle cylinder, and a lower cover that are sequentially connected, and the input pipe and the output pipe both pass through the upper cover.

According to another aspect of the present application, a compression system is provided. The compression system includes a compressor and the gas-liquid separator provided above, and the outlet of the gas-liquid separator is in communication with the inlet of the compressor.

Applying the technical solution of the present application, the gas-liquid separator is provided with an outer cylinder, an input pipe, an output pipe and a blocking part, wherein a part of the input pipe penetrates the outer cylinder, and the inlet of the input pipe is located outside the outer cylinder. The outlet of the pipe is located inside the outer cylinder; a part of the output pipe penetrates the outer cylinder, the inlet of the output pipe is located inside the outer cylinder, the outlet of the output pipe is located outside the outer cylinder, and the setting position of the inlet of the output pipe is higher than that of the input pipe The setting position of the outlet; the blocking part is arranged in the outer cylinder, and the blocking part is located between the inlet of the output pipe and the outlet of the input pipe to separate the inlet of the output pipe and the outlet of the input pipe. In this way, the large-particle liquid refrigerant or other liquid output from the outlet of the input pipe can be blocked by the blocking part, and the large-particle liquid is prevented from splashing into the inlet of the output pipe, so that only gas can enter the output pipe. This technical solution improves the gas-liquid separation effect of the gas-liquid separator, thereby avoiding damage to the compressor by liquid hammer.

Description of the drawings

The drawings of the specification forming a part of the application are used to provide a further understanding of the application, and the exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Figure 1 shows a schematic structural diagram of a gas-liquid separator provided by an embodiment of the present application;

Figure 2 shows a perspective view of the gas-liquid separator in Figure 1;

Figure 3 shows a top view of the gas-liquid separator in Figure 1;

FIG. 4 shows a schematic diagram of the structure of the blocking part in FIG. 1.

Among them, the above drawings include the following reference signs:

10. Outer cylinder; 20. Input pipe; 30. Output pipe; 40. Blocking part; 41. Avoidance hole; 42. Limit hole; 50. Filter assembly; 60. Reinforcing plate.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any limitation to the application and its application or use. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

As shown in the drawings, the embodiment of the present application provides a gas-liquid separator, including: an outer tube 10; an input tube 20, a part of the input tube 20 is penetrated in the outer tube 10, and the inlet of the input tube 20 is located in the outer tube 10, the outlet of the input pipe 20 is located inside the outer cylinder 10; the output pipe 30, a part of the output pipe 30 passes through the outer cylinder 10, the inlet of the output pipe 30 is located inside the outer cylinder 10, and the outlet of the output pipe 30 is located Outside the outer cylinder 10, the setting position of the inlet of the output pipe 30 is higher than the setting position of the outlet of the input pipe 20; the blocking part 40 is arranged in the outer cylinder 10, and the blocking part 40 is located at the inlet of the output pipe 30 and the outlet of the input pipe 20 In between, the inlet of the output pipe 30 and the outlet of the input pipe 20 are spaced apart.

Applying the technical solution of the present application, the gas-liquid separator is provided with an outer cylinder 10, an input pipe 20, an output pipe 30, and a blocking portion 40, wherein a part of the input pipe 20 penetrates the outer cylinder 10, and the inlet of the input pipe 20 Located outside the outer cylinder 10, the outlet of the input pipe 20 is located inside the outer cylinder 10; a part of the output pipe 30 penetrates the outer cylinder 10, the inlet of the output pipe 30 is located inside the outer cylinder 10, and the outlet of the output pipe 30 is located outside Outside the cylinder 10, the setting position of the inlet of the output pipe 30 is higher than the setting position of the outlet of the input pipe 20; the blocking part 40 is arranged in the outer cylinder 10, and the blocking part 40 is located between the inlet of the output pipe 30 and the outlet of the input pipe 20 , To separate the inlet of the output pipe 30 and the outlet of the input pipe 20. In this way, the large-particle liquid refrigerant or other liquid output from the outlet of the input pipe 20 can be blocked by the blocking portion 40, and the large-particle liquid is prevented from splashing into the inlet of the output pipe 30, so that the only thing that enters the output pipe 30 is It is a gas, so this technical solution improves the gas-liquid separation effect of the gas-liquid separator, thereby avoiding damage to the compressor by liquid hammer.

In this embodiment, the blocking portion 40 has an avoiding hole 41, and the avoiding hole 41 connects the area above the blocking portion 40 and the area below the blocking portion 40. In this way, the gas separated from the gas-liquid mixed fluid can enter the area above the barrier 40 from the area below the barrier 40 through the escape hole 41, and then enter the output pipe 30 for output.

In this embodiment, the blocking portion 40 has a plate-like structure, and the periphery of the blocking portion 40 is connected to the inner wall of the outer cylinder 10; in the radial direction of the outer cylinder 10, the area of the avoiding hole 41 is smaller than the area of the solid part of the blocking portion 40 . In this way, the solid part of the blocking part 40 can block the large-particle liquid to ensure the blocking effect.

As shown in FIG. 3, in this embodiment, the distance H between the exit of the input tube 20 and the edge of the escape hole 41 is greater than the outer diameter L of the input tube 20. Through the above arrangement, the blocking effect of the blocking portion 40 on the fluid output from the input pipe 20 can be ensured, and the large-particle liquid can be prevented from entering the output pipe 30.

In this embodiment, the inlet of the output tube 30 and the outlet of the output tube 30 are both located above the blocking portion 40. The blocking portion 40 has a limiting hole 42, and the output tube 30 passes through the limiting hole 42 to pass through the limiting hole 42. The inner wall of the inner wall restricts the output tube 30. In this way, the blocking portion 40 can also have the effect of fixing and limiting the output tube 30.

In this embodiment, the input pipe 20 includes a vertical section and a horizontal section that are connected to each other. The inlet of the input pipe 20 is located at the end of the vertical section, the outlet of the input pipe 20 is located at the end of the horizontal section, and the input pipe 20 is located at the end of the horizontal section. The outlet faces the inner wall of the outer cylinder 10. In this way, the fluid output from the input pipe 20 can impact on the inner wall of the outer cylinder 10 to disperse and atomize or vaporize the large-particle liquid, thereby improving the gas-liquid separation effect.

In this embodiment, the output pipe 30 has a U-shaped structure, and the gas-liquid separator further includes: a filter assembly 50 disposed at the bottom of the output pipe 30. In this way, the fluid can be filtered through the filter assembly 50 to prevent impurities in the system from blocking the oil return hole.

In this embodiment, the gas-liquid separator further includes a reinforcing plate 60 arranged in the outer cylinder 10, and the bottom of the output pipe 30 passes through the reinforcing plate 60 to fix the output pipe 30 through the reinforcing plate 60. In this way, the output pipe 30 can be fixed by the reinforcing plate 60, and the reliability of the gas-liquid separator can be improved.

In this embodiment, the outer cylinder 10 includes an upper cover, a middle cylinder, and a lower cover that are sequentially connected, and the input pipe 20 and the output pipe 30 pass through the upper cover. This facilitates the assembly of various components and improves the structural strength.

Optionally, the gas-liquid separator further includes a base, which is arranged at the bottom of the outer cylinder 10, and the base is provided to facilitate fixing of the gas-liquid separator and connection with other devices. The base can be set to multiple to improve reliability.

Another embodiment of the present application provides a compression system. The compression system includes a compressor and the gas-liquid separator provided above, and the outlet of the gas-liquid separator is in communication with the inlet of the compressor. The gas-liquid separator is provided with an outer tube 10, an input tube 20, an output tube 30, and a blocking portion 40, wherein a part of the input tube 20 penetrates the outer tube 10, and the inlet of the input tube 20 is located outside the outer tube 10, The outlet of the input pipe 20 is located inside the outer cylinder 10; a part of the output pipe 30 penetrates the outer cylinder 10, the inlet of the output pipe 30 is located inside the outer cylinder 10, and the outlet of the output pipe 30 is located outside the outer cylinder 10. The output pipe The setting position of the inlet of 30 is higher than the setting position of the outlet of the input pipe 20; the blocking part 40 is arranged in the outer cylinder 10, and the blocking part 40 is located between the inlet of the output pipe 30 and the outlet of the input pipe 20, so that the output pipe 30 The inlet and the outlet of the input pipe 20 are spaced apart. In this way, the large-particle liquid refrigerant or other liquids output from the outlet of the input pipe 20 can be blocked by the blocking portion 40, and the large-particle liquid can be prevented from splashing into the inlet of the output pipe 30, so that the only thing that enters the output pipe 30 is It is a gas, so this technical solution improves the gas-liquid separation effect of the gas-liquid separator, thereby avoiding damage to the compressor by liquid hammer.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A gas-liquid separator, characterized in that it comprises:

Outer cylinder (10);

The input pipe (20), a part of the input pipe (20) is penetrated in the outer cylinder (10), the inlet of the input pipe (20) is located outside the outer cylinder (10), and the input The outlet of the tube (20) is located inside the outer cylinder (10);

An output pipe (30), a part of the output pipe (30) is penetrated in the outer cylinder (10), the inlet of the output pipe (30) is located inside the outer cylinder (10), and the output The outlet of the pipe (30) is located outside the outer cylinder (10), and the setting position of the inlet of the output pipe (30) is higher than the setting position of the outlet of the input pipe (20);

The blocking portion (40) is arranged in the outer cylinder (10), and the blocking portion (40) is located between the inlet of the output pipe (30) and the outlet of the input pipe (20) to remove the The inlet of the output pipe (30) and the outlet of the input pipe (20) are spaced apart.
The gas-liquid separator according to claim 1, wherein the blocking portion (40) has an escape hole (41), and the escape hole (41) connects the area above the blocking portion (40) and the The area below the blocking portion (40) is connected.
The gas-liquid separator according to claim 2, wherein the blocking portion (40) is a plate-shaped structure, and the periphery of the blocking portion (40) is connected with the inner wall of the outer cylinder (10); In the radial direction of the outer cylinder (10), the area of the escape hole (41) is smaller than the area of the solid part of the blocking portion (40).
The gas-liquid separator according to claim 2, characterized in that the distance between the outlet of the input pipe (20) and the edge of the escape hole (41) is greater than the outer diameter of the input pipe (20) .
The gas-liquid separator according to claim 1, wherein the inlet of the output pipe (30) and the outlet of the output pipe (30) are both located above the blocking portion (40), and the blocking The portion (40) has a limiting hole (42), and the output tube (30) passes through the limiting hole (42) so as to pass through the inner wall of the limiting hole (42) to the output tube (30). Perform a limit.
The gas-liquid separator according to claim 1, wherein the input pipe (20) comprises a vertical section and a horizontal section that are connected to each other, wherein the inlet of the input pipe (20) is located in the vertical section. At the end of the section, the outlet of the input pipe (20) is located at the end of the horizontal section, and the outlet of the input pipe (20) faces the inner wall of the outer cylinder (10).
The gas-liquid separator according to claim 1, wherein the output pipe (30) has a U-shaped structure, and the gas-liquid separator further comprises:

The filter assembly (50) is arranged at the bottom of the output pipe (30).
The gas-liquid separator according to claim 1, wherein the gas-liquid separator further comprises:

The reinforcing plate (60) is arranged in the outer cylinder (10), and the bottom of the output tube (30) passes through the reinforcing plate (60), so that the output tube can be protected by the reinforcing plate (60). (30) Fix it.
The gas-liquid separator according to claim 1, wherein the outer cylinder (10) comprises an upper cover, a middle cylinder and a lower cover which are connected in sequence, the input pipe (20) and the output pipe ( 30) All pass through the upper cover.
A compression system, characterized in that the compression system comprises a compressor and the gas-liquid separator according to any one of claims 1 to 9, and the outlet of the gas-liquid separator is in communication with the inlet of the compressor .