Pipeline type gas-liquid separator for refrigeration equipment

Abstract

The utility model provides a pipeline type gas-liquid separator for refrigeration equipment, which comprises a shell, the shell is integrally formed, an air inlet is arranged at the upper end of the shell, an air outlet is arranged at the lower end of the shell, and a separation cavity is arranged in the shell; the air inlet pipe extends into the shell from the air inlet, the end of the air inlet pipe is closed, and an air inlet pipe outlet facing the inner wall of the shell is formed in the side wall of the air inlet pipe; the gas outlet pipe extends into the shell from the gas outlet, a gas outlet pipe inlet is formed in the gas outlet pipe, the gas outlet pipe inlet and the gas inlet pipe outlet are arranged in a staggered mode, an oil return hole is formed in the portion, located on the lower portion of the separation cavity, of the gas outlet pipe, and a gas-liquid mixture sprayed out of the gas inlet pipe is sprayed to the side wall of the shell. The air inlet pipe directly sprays the liquid refrigerant downwards to the bottom to generate water blowing sound.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a pipeline type gas-liquid separator for refrigeration equipment. Background Art

[0002] In order to improve the refrigeration effect of existing refrigeration equipment such as air conditioners, display cabinets, ice makers, etc., and prevent excessive unevaporated liquid refrigerant and liquid compressor oil from entering the compressor, causing liquid hammer, resulting in compressor wear and affecting the service life of the compressor, a gas-liquid separator is added in front of the compressor. The gas-liquid separators used in air conditioners, especially commercial air conditioners, are generally relatively large and need to be specially manufactured. The gas-liquid separators of display cabinets, ice makers, etc. are generally small pipeline type gas-liquid separators, which have a certain liquid storage function. Sometimes, when used in display cabinets or ice makers, they are habitually called liquid storage devices. However, the liquid storage device and the gas-liquid separator are two types in air conditioners.

[0003] The design of a conventional pipeline type gas-liquid separator is as follows Figure 1 As shown, it includes a housing 1', an inlet pipe 2' and an outlet pipe 3'. The inlet of the outlet pipe and the outlet of the inlet pipe are generally at the same level or slightly lower. This pipeline type gas-liquid separator can be directly installed on the return air pipeline. The main disadvantages of the current conventional design method are as follows:

[0004] 1. During the operation of the refrigeration system, the gas-liquid mixture in the inlet pipe 2' directly sprays onto the liquid refrigerant at the bottom of the gas-liquid separator, forming a "clattering" sound of blowing water.

[0005] 2. The state where the inlet of the outlet pipe is at the same level or slightly lower than the outlet of the inlet pipe will cause some liquid refrigerant in the outlet of the inlet pipe to directly spray into the outlet pipe 3', resulting in liquid hammer of the compressor. Content of the Utility Model

[0006] To solve the problems existing in the prior art, the utility model provides a pipeline type gas-liquid separator for refrigeration equipment, including:

[0007] A housing, the housing is integrally formed, an air inlet is provided at the upper end of the housing, an air outlet is provided at the lower end of the housing, and a separation chamber is provided inside the housing;

[0008] An inlet pipe, the inlet pipe extends into the housing from the air inlet, the end of the inlet pipe is closed, and an outlet of the inlet pipe facing the inner wall of the housing is provided on the side wall of the inlet pipe;

[0009] An outlet pipe, the outlet pipe extends into the housing from the air outlet, an inlet of the outlet pipe is provided on the outlet pipe, the inlet of the outlet pipe is arranged staggered with the outlet of the inlet pipe, and an oil return hole is provided in the lower section of the separation chamber where the outlet pipe is located.

[0010] Specifically, the intake pipe is a straight pipe, and the end of the intake pipe is closed with an end cap.

[0011] Specifically, the intake pipe is a straight pipe, the end of the intake pipe is a hemispherical closed structure, and an arc-shaped guiding inclined surface is arranged at the outlet of the intake pipe.

[0012] Specifically, the inlet of the outlet pipe is arranged at the rear side of the outlet of the intake pipe.

[0013] Specifically, first positioning marks are respectively arranged at the intake pipe and the air inlet, and second positioning marks are respectively arranged at the outlet pipe and the air outlet.

[0014] Specifically, the air inlet and the air outlet are coaxially arranged.

[0015] Specifically, the height of the inlet of the outlet pipe is not lower than the height of the outlet of the intake pipe.

[0016] Specifically, the air inlet and the air outlet are staggeredly arranged.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The end of the intake pipe of this gas-liquid separator is closed, and an air outlet of the intake pipe is arranged on the side wall of the intake pipe facing the inner wall of the housing. The gas-liquid mixture ejected from the intake pipe sprays onto the side wall of the housing, solving the problem of the "clattering" sound of blowing water generated in the prior art when the intake pipe directly sprays downward onto the bottom liquid refrigerant.

[0019] 2. The height of the inlet of the outlet pipe of this gas-liquid separator is not lower than the height of the outlet of the intake pipe, avoiding some liquid refrigerant in the outlet of the intake pipe from directly spraying into the outlet pipe.

[0020] 3. The intake pipe is in a straight pipe shape without bending, and the outlet pipe only has a certain inclination. Both can be directly inserted into the housing from the air inlet and the air outlet. Positioning marks are respectively arranged at the air inlet and the air outlet, and the positioning marks can be aligned during assembly to complete the installation. The installation of this gas-liquid separator is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a typical pipe-type gas-liquid separator in the prior art;

[0022] Figure 2 is a cross-sectional view of the first embodiment of the intake pipe of the present utility model;

[0023] Figure 3 is a cross-sectional view of the second embodiment of the intake pipe of the present utility model;

[0024] Figure 4 is a schematic external structure diagram of the present utility model;

[0025] Figure 5 Schematic diagram of the second embodiment of the present utility model.

[0026] 1. Housing; 2. Intake pipe; 3. Outlet pipe; 4. Intake port; 5. Outlet port; 6. Outlet of the intake pipe; 7. Inlet of the outlet pipe; 8. Oil return hole; 9. First positioning mark; 10. Second positioning mark. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0028] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0029] As Figures 2 - 5 shown, a pipe-type gas-liquid separator for a refrigeration device includes a housing 1, an intake pipe 2, and an outlet pipe 3, and is applicable to refrigeration devices such as ice makers and display cabinets. It separates and stores the gas-liquid mixture ejected from the evaporator, and the gas-liquid mixture includes gaseous and liquid compressor oil and refrigerant, preventing the liquid from directly entering the compressor and causing liquid hammer to the compressor.

[0030] As the first embodiment of the present utility model, the housing 1 is integrally formed, and a separation chamber is provided inside the housing 1. An intake port 4 and an outlet port 5 communicating with the separation chamber are coaxially provided at the upper and lower ends of the housing 1. The intake pipe 2 extends into the housing 1 from the intake port 4, and the outlet pipe 3 extends into the housing 1 from the outlet port 5.

[0031] The intake pipe 2 is a straight pipe, and the intake pipe 2 is connected from the evaporator to the housing 1. As the first embodiment of the intake pipe 2, as Figure 2 shown, the end of the intake pipe 2 is closed with an end cap, and an outlet 6 of the intake pipe is provided on the side wall of the intake pipe 2 facing the inner wall of the housing 1. The outlet can be one or more, and the aperture of the outlet matches the inner diameter of the intake pipe 2. As the second embodiment of the intake pipe 2, as Figure 3As shown in the figure, the end of the intake pipe 2 is a hemispherical closed structure. An intake pipe outlet 6 is provided on the side of the intake pipe 2 facing the inner wall of the housing 1. An arc-shaped guiding inclined surface is provided at the intake pipe outlet 6 to guide the flow direction of the gas-liquid mixture. The gas-liquid mixture ejected from the intake pipe 2 is ejected towards the side wall of the housing 1, avoiding directly ejecting downward onto the bottom liquid refrigerant and generating the sound of "clattering" water blowing.

[0032] The outlet pipe 3 has a certain inclination and is obliquely inserted into the housing 1. An outlet pipe inlet 7 is provided at the end of the outlet pipe 3. The other end of the outlet pipe 3 is connected to the compressor. The outlet pipe inlet 7 and the intake pipe outlet 6 are arranged staggeredly. The outlet pipe inlet 7 is arranged at the rear side of the intake pipe outlet 6 to avoid liquid directly ejecting from the intake pipe outlet 6 to the outlet pipe inlet 7, resulting in liquid hammer of the compressor. The height of the outlet pipe inlet 7 is not lower than the height of the intake pipe outlet 6 to avoid the liquid refrigerant directly entering the outlet pipe 3 from the outlet pipe inlet 7 after rebounding from the inner wall.

[0033] For the gas-liquid mixture ejected from the intake pipe outlet 6, the gaseous mixture returns to the compressor through the outlet pipe 3, and the liquid refrigerant settles at the lower part of the separation chamber. This liquid refrigerant is a refrigerant incorporated with compressor oil. To ensure the oil quantity in the compressor, an oil return hole 8 is provided in the section of the outlet pipe 3 located at the lower part of the separation chamber. The oil return hole 8 can be one or more. The aperture size of the oil return hole 8 is generally 2%-5% of the pipe diameter of the outlet pipe 3. The liquid refrigerant returns to the compressor through the oil return hole 8 along with the gaseous mixture, ensuring the oil supply quantity of the compressor.

[0034] As Figure 5 shown, to ensure that during the installation process of the intake pipe 2 and the outlet pipe 3, the inserted length and the orientation of the pipes are correct, first positioning marks 9 are respectively provided at the intake pipe 2 and the air inlet 4, and second positioning marks 10 are respectively provided at the outlet pipe 3 and the air outlet 5. The positioning marks can be arrow-shaped or convex-shaped.

[0035] When assembling the gas-liquid separator, since the intake pipe 2 is a straight pipe without bending and the outlet pipe 3 only has a certain inclination, the intake pipe 2 and the outlet pipe 3 can be easily inserted into the housing 1 from the air inlet 4 and the air outlet 5 respectively, and the first positioning marks 9 at the intake pipe 2 and the air inlet 4 are aligned respectively, and the second positioning marks 10 at the outlet pipe 3 and the air outlet 5 are aligned respectively, then the assembly of the gas-liquid separator can be completed. The installation of this gas-liquid separator is convenient.

[0036] As the second embodiment of the present utility model, as Figure 5 shown, compared with the first embodiment, the air inlet 4 and the air outlet 5 are arranged staggeredly. The air inlet 4 is arranged on one side of the top of the housing 1, and the air outlet 5 is arranged on the other side of the bottom of the housing 1. Both the intake pipe 2 and the outlet pipe 3 are straight pipes. The intake pipe 2 and the outlet pipe 3 respectively extend into the housing 1 from the air inlet 4 and the air outlet 5.

[0037] The housing 1 is integrally formed. A separation chamber is provided inside the housing 1. An air inlet 4 and an air outlet 5 communicating with the separation chamber are coaxially arranged at the upper end and the lower end of the housing 1 respectively. The inlet pipe 2 extends into the housing 1 from the air inlet 4, and the outlet pipe 3 extends into the housing 1 from the air outlet 5.

[0038] The above are only the preferred embodiments of the present invention, and do not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A pipeline type gas-liquid separator for a refrigeration device, characterized in that, Comprising: A housing (1), the housing (1) being integrally formed, an air inlet (4) being provided at the upper end of the housing (1), an air outlet (5) being provided at the lower end of the housing (1), and a separation chamber being provided inside the housing (1); An intake pipe (2), the intake pipe (2) extending into the housing (1) from the air inlet (4), the end of the intake pipe (2) being closed, and an intake pipe outlet (6) being provided on the side wall of the intake pipe (2) and facing the inner wall of the housing (1); An outlet pipe (3), the outlet pipe (3) extending into the housing (1) from the air outlet (5), an outlet pipe inlet (7) being provided on the outlet pipe (3), the outlet pipe inlet (7) being arranged staggeredly with the intake pipe outlet (6), and an oil return hole (8) being provided in the lower section of the separation chamber where the outlet pipe (3) is located.

2. The pipeline type gas-liquid separator for refrigeration equipment according to claim 1, wherein: The intake pipe (2) is a straight pipe, and the end of the intake pipe (2) is closed with an end cap.

3. The pipeline type gas-liquid separator for a refrigeration device according to claim 1, characterized in that: The intake pipe (2) is a straight pipe, the end of the intake pipe (2) is a hemispherical closed structure, and an arc-shaped guiding inclined surface is provided at the intake pipe outlet (6).

4. The pipeline type gas-liquid separator for a refrigeration device according to claim 1, characterized in that: The outlet pipe inlet (7) is provided at the rear side of the intake pipe outlet (6).

5. The pipeline type gas-liquid separator for a refrigeration device according to claim 1, characterized in that: First positioning marks (9) are respectively provided at the intake pipe (2) and the air inlet (4), and second positioning marks (10) are respectively provided at the outlet pipe (3) and the air outlet (5).

6. The pipeline type gas-liquid separator for a refrigeration device according to claim 1, characterized in that: The air inlet (4) and the air outlet (5) are coaxially arranged.

7. The pipeline type gas-liquid separator for refrigeration equipment according to claim 1, characterized in that: The height of the outlet pipe inlet (7) is not lower than the height of the intake pipe outlet (6).

8. The pipeline type gas-liquid separator for a refrigeration device according to claim 1, characterized in that: The air inlet (4) and the air outlet (5) are arranged staggeredly.

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