Gas-liquid separator

Abstract

The utility model relates to a gas-liquid separator. The technical problems in the prior art are solved. Comprising a cylindrical separation tank body with an inner cavity, the separation tank body is horizontally distributed, the two ends of the separation tank body are closed, an inlet pipe and an outlet pipe which are communicated with the inner cavity are arranged on the upper side of the separation tank body, and a mounting base is arranged at the lower end of the separation tank body; the inlet pipe and the outlet pipe are inserted into mounting holes in the upper side of the separation tank body and connected with the mounting holes in a flanging welding mode, the inlet pipe and the outlet pipe both extend into the separation tank body, and the lower end, located in the separation tank body, of the outlet pipe is connected with an inclined pipe facing one side of the lower end of the inlet pipe through a bent pipe; and a bypass pipe is arranged outside one end, close to the bent pipe, of the inclined pipe. The device has the advantages that the high-pressure resistance of the joints of the inlet pipe and the outlet pipe with the separation tank body can be improved in a flanging welding manner, and the service life is prolonged. The first barrel-shaped body and the second barrel-shaped body are connected in a middle welding mode, so that welding points can be effectively reduced, and connection stability is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas-liquid separator equipment, and in particular relates to a gas-liquid separator. Background Art

[0002] The gas-liquid separator is set between the evaporator and the compressor. The evaporator is connected to the gas-liquid separator through an inlet pipe, and the compressor is connected to the gas-liquid separator through an outlet pipe. The gas-liquid separator can separate the refrigerant in the inlet pipe into gas and liquid, and transmit the gas refrigerant to the compressor through the outlet pipe. However, the existing connection strength of the gas-liquid separator and the inlet pipe and outlet pipe is low and cannot withstand high pressure, resulting in a short service life, which affects the user experience. Summary of the invention

[0003] The purpose of the utility model is to provide a gas-liquid separator in view of the above problems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the gas-liquid separator comprises a separation tank body which is cylindrical and has an inner cavity, the separation tank body is horizontally distributed and closed at both ends, the upper side of the separation tank body is respectively provided with an inlet pipe and an outlet pipe which are connected with the inner cavity, and the lower end of the separation tank body is provided with a mounting seat, characterized in that the inlet pipe and the outlet pipe are inserted into the mounting hole on the upper side of the separation tank body and are connected with the mounting hole by flanging welding, the inlet pipe and the outlet pipe both extend into the separation tank body, and the inlet pipe is in the shape of a vertical tube, the lower end of the outlet pipe located in the separation tank body is connected with an inclined pipe which is arranged toward one side of the lower end of the inlet pipe and extends obliquely upward through a bent pipe, and a bypass pipe is provided on the outer side of one end of the inclined pipe close to the bent pipe, the bypass pipe is an oil return pipe which can facilitate the reflux of liquid refrigerant dissolved in oil, lubricates the compressor, and improves the service life of the compressor.

[0005] In the above-mentioned gas-liquid separator, the separation tank body has a first cylindrical body and a second cylindrical body, one end of the first cylindrical body and the second cylindrical body are open and the other end is closed, the open end of the first cylindrical body is inserted into the circumferential inner side of the open end of the second cylindrical body and is connected by welding, which can improve the connection stability between the first cylindrical body and the second cylindrical body.

[0006] In the above-mentioned gas-liquid separator, the first cylindrical body and the second cylindrical body have the same diameter, the open end of the second cylindrical body has a flared portion with a diameter larger than that of the first cylindrical body, and the open end of the first cylindrical body is inserted into the inner side of the flared portion, and the flared portion can further improve the connection stability between the first cylindrical body and the second cylindrical body.

[0007] In the above-mentioned gas-liquid separator, the mounting holes are respectively arranged on the upper sides of the first cylindrical body and the second cylindrical body, and the inlet pipe is installed in the mounting hole on the first cylindrical body, and the outlet pipe is installed in the mounting hole on the second cylindrical body, and the upper ends of the mounting holes respectively have flange portions connected to the first cylindrical body or the second cylindrical body as one body, and the inlet pipe or the outlet pipe is inserted into the flange portion and fixed by welding. Through the mounting holes, the inlet pipe and the outlet pipe can be respectively connected to the upper ends of the first cylindrical body and the second cylindrical body and can facilitate the gas-liquid separation of the refrigerant.

[0008] In the above-mentioned gas-liquid separator, one end of the inclined tube is located in the second cylindrical body and the other end extends upwardly into the first cylindrical body at an angle. The inclined tube can easily receive the refrigerant, and the refrigerant is separated into gas and liquid in the inclined tube and the curved tube. The gas refrigerant is connected to the compressor through the outlet pipe.

[0009] In the above-mentioned gas-liquid separator, the outlet pipe, the bent pipe and the inclined pipe are connected as an integrated structure and are interconnected, the bypass pipe is connected to the inclined pipe by welding and the bypass pipe is connected to the inclined pipe, and a filter is provided on the inner side of one end of the bypass pipe away from the inclined pipe, and the connection stability between the bypass pipe and the inclined pipe can be improved by welding.

[0010] In the above-mentioned gas-liquid separator, the outlet pipe and the inclined pipe are not located in the same vertical plane, and the inclined pipe is inclined toward the front or rear side of the separation tank body, which can facilitate the refrigerant connection between the inlet pipe and the inclined pipe and improve the separation efficiency.

[0011] In the above-mentioned gas-liquid separator, the heights of the inlet pipe and the outlet pipe exposed above the upper side of the separation tank body are equal, which can facilitate the installation of the inlet pipe and the outlet pipe, and can ensure the pressure between the inlet pipe and the outlet pipe to ensure the separation effect.

[0012] In the above-mentioned gas-liquid separator, the closed ends of the first cylindrical body and the second cylindrical body respectively have an outwardly protruding arched portion, and the arched portion can improve the structural strength of the separation tank body and increase the service life.

[0013] In the above-mentioned gas-liquid separator, there are two mounting seats and they are symmetrically arranged on the lower side of the separation tank body. The mounting seats are provided with mounting grooves matching the outer side of the separation tank body. The lower side of the separation tank body is arranged in the mounting groove and fixedly connected by welding. A plurality of fixing holes are provided on the mounting seats.

[0014] Compared with the existing technology, the advantages of the utility model are:

[0015] 1. The flanging part can improve the high pressure resistance of the connection between the inlet pipe, the outlet pipe and the separation tank body, thereby increasing the service life.

[0016] 2. The first cylindrical body and the second cylindrical body are connected by intermediate welding, which can effectively reduce welding points and ensure connection stability.

[0017] 3. The connection stability can be further improved by expanding the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural sectional view of the utility model.

[0020] In the figure: separation tank body 1, inner cavity 11, mounting hole 12, first cylindrical body 13, second cylindrical body 14, flared portion 141, flange portion 15, inlet pipe 2, outlet pipe 3, mounting seat 4, mounting groove 41, bent pipe 5, inclined pipe 6, bypass pipe 7, filter screen 71, arched portion 8. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1 , Figure 2 As shown, the gas-liquid separator comprises a separation tank body 1 which is cylindrical and has an inner cavity 11. The separation tank body 1 is horizontally distributed and closed at both ends. An inlet pipe 2 and an outlet pipe 3 which are connected to the inner cavity 11 are respectively arranged on the upper side of the separation tank body 1. The refrigerant of the evaporator enters the separation tank body 1 through the inlet pipe 2, and the gas refrigerant after gas-liquid separation enters the compressor through the outlet pipe 3. A mounting seat 4 is arranged at the lower end of the separation tank body 1. The mounting seat 4 can improve the stability of the separation tank body 1. The inlet pipe 2 and the outlet pipe 3 are inserted into the mounting hole 12 on the upper side of the separation tank body 1 and are connected to the mounting hole 12 by flanging welding. The holes 12 are connected, and the high-pressure bearing capacity can be improved and oxidation can be prevented by flanging welding. The inlet pipe 2 and the outlet pipe 3 both extend into the separation tank body 1, which is convenient for introducing the refrigerant into the separation tank body 1 for gas-liquid separation, and the inlet pipe 2 is in the shape of a vertical tube, and the outlet pipe 3 is located at the lower end of the separation tank body 1. It is connected to an inclined pipe 6 extending upward and toward the lower end of the inlet pipe 2 through a bent pipe 5, and a bypass pipe 7 is provided on the outer side of the end of the inclined pipe 6 close to the bent pipe 5. The bypass pipe 7 is an oil return pipe that can facilitate the reflux of liquid refrigerant dissolved in oil, thereby lubricating the compressor and improving the service life of the compressor.

[0023] Specifically, the separation tank body 1 has a first cylindrical body 13 and a second cylindrical body 14, one end of the first cylindrical body 13 and the second cylindrical body 14 are open and the other end is closed, the open end of the first cylindrical body 13 is inserted into the circumferential inner side of the open end of the second cylindrical body 14 and is connected by welding, which can improve the connection stability between the first cylindrical body 13 and the second cylindrical body 14.

[0024] Among them, the first cylindrical body 13 and the second cylindrical body 14 have the same diameter, the open end of the second cylindrical body 14 has a flared portion 141 with a diameter larger than that of the first cylindrical body 13, and the open end of the first cylindrical body 13 is inserted into the inner side of the flared portion 141. The flared portion 141 can further improve the connection stability between the first cylindrical body 13 and the second cylindrical body 14.

[0025] like Figure 1 , Figure 2 As shown, the mounting holes 12 are respectively arranged on the upper sides of the first cylindrical body 13 and the second cylindrical body 14, and the inlet pipe 2 is installed in the mounting hole 12 on the first cylindrical body 13, and the outlet pipe 3 is installed in the mounting hole 12 on the second cylindrical body 14. The upper ends of the mounting holes 12 respectively have flange portions 15 connected to the first cylindrical body 13 or the second cylindrical body 14 as one body, and the inlet pipe 2 or the outlet pipe 3 is inserted into the flange portion 15 and fixed by welding. Through the mounting holes 12, the inlet pipe 2 and the outlet pipe 3 can be respectively connected to the upper ends of the first cylindrical body 13 and the second cylindrical body 14, and the gas-liquid separation of the refrigerant can be facilitated.

[0026] Furthermore, one end of the inclined tube 6 is located in the second cylindrical body 14 and the other end extends obliquely upward into the first cylindrical body 13. The inclined tube 6 can easily receive the refrigerant. The refrigerant is separated into gas and liquid in the inclined tube 6 and the curved tube 5, and the gas refrigerant is connected to the compressor through the outlet pipe 3.

[0027] Among them, the outlet pipe 3, the curved pipe 5 and the inclined pipe 6 are connected as an integrated structure and are interconnected, which can improve the overall structural strength and improve the service life. The bypass pipe 7 is connected to the inclined pipe 6 by welding and the bypass pipe 7 is connected to the inclined pipe 6. A filter screen 71 is provided on the inner side of one end of the bypass pipe 7 away from the inclined pipe 6. Impurities can be filtered through the filter screen 71. The connection stability between the bypass pipe 7 and the inclined pipe 6 can be improved by welding.

[0028] Combination Figure 1 , Figure 2 As shown, the outlet pipe 3 and the inclined pipe 6 are not located in the same vertical plane, and the inclined pipe 6 is inclined toward the front or rear side of the separation tank body 1, which can facilitate the refrigerant connection between the inlet pipe 2 and the inclined pipe 6 and improve the separation efficiency.

[0029] The heights of the inlet pipe 2 and the outlet pipe 3 exposed from the upper side of the separation tank body 1 are equal, which can facilitate the installation of the inlet pipe 2 and the outlet pipe 3 and ensure the pressure between the inlet pipe 2 and the outlet pipe 3 to ensure the separation effect.

[0030] Specifically, the closed ends of the first cylindrical body 13 and the second cylindrical body 14 respectively have an outwardly protruding arched portion 8, and the arched portion 8 can improve the structural strength of the separation tank body 1 and increase the service life.

[0031] Combination Figure 1 , Figure 2 As shown, there are two mounting seats 4 and they are symmetrically arranged on the lower side of the separation tank body 1 to ensure the placement stability of the separation tank body 1. The mounting seat 4 is provided with a mounting groove 41 that matches the outer side of the separation tank body 1. The lower side of the separation tank body 1 is arranged in the mounting groove 41 and is fixedly connected by welding. The connection stability can be further improved by the mounting groove 41. A plurality of fixing holes are provided on the mounting seat 4, and the mounting seat 4 can be fixedly placed through the fixing holes.

[0032] The principle of this embodiment is that the inlet pipe 2 and the outlet pipe 3 are fixedly connected to the separation tank body 1 by flanging welding, have the ability to withstand high pressure, and can prevent oxidation and increase service life. The first cylindrical body 13 and the second cylindrical body 14 are connected by intermediate welding, which can reduce welding points and improve the connection effect. The connection stability can be further improved by the flared portion 141.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although the terms such as separation tank body 1, inner cavity 11, mounting hole 12, first cylindrical body 13, second cylindrical body 14, flared portion 141, flanged portion 15, inlet pipe 2, outlet pipe 3, mounting seat 4, mounting groove 41, bent pipe 5, inclined pipe 6, bypass pipe 7, filter screen 71, arched portion 8 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A gas-liquid separator, comprising a separation tank body (1) which is cylindrical and has an inner cavity (11), wherein the separation tank body (1) is arranged horizontally and closed at both ends, an inlet pipe (2) and an outlet pipe (3) which are connected to the inner cavity (11) are respectively arranged on the upper side of the separation tank body (1), and a mounting seat (4) is arranged at the lower end of the separation tank body (1), characterized in that: The inlet pipe (2) and the outlet pipe (3) are inserted into the mounting hole (12) on the upper side of the separation tank body (1) and are connected to the mounting hole (12) by flanging welding. The inlet pipe (2) and the outlet pipe (3) both extend into the separation tank body (1), and the inlet pipe (2) is in the shape of a vertical tube. The lower end of the outlet pipe (3) located in the separation tank body (1) is connected to an inclined pipe (6) extending obliquely upward toward the lower end of the inlet pipe (2) through a bent pipe (5), and a bypass pipe (7) is provided on the outer side of one end of the inclined pipe (6) close to the bent pipe (5).

2. The gas-liquid separator according to claim 1, characterized in that: The separation tank body (1) comprises a first cylindrical body (13) and a second cylindrical body (14), one end of each of the first cylindrical body (13) and the second cylindrical body (14) is open and the other end is closed, and the open end of the first cylindrical body (13) is inserted into the circumferential inner side of the open end of the second cylindrical body (14) and is connected by welding.

3. The gas-liquid separator according to claim 2, characterized in that: The first cylindrical body (13) and the second cylindrical body (14) have the same diameter, the open end of the second cylindrical body (14) has a flared portion (141) having a diameter larger than that of the first cylindrical body (13), and the open end of the first cylindrical body (13) is inserted into the inner side of the flared portion (141).

4. The gas-liquid separator according to claim 2 or 3, characterized in that: The mounting holes (12) are respectively arranged on the upper sides of the first cylindrical body (13) and the second cylindrical body (14), and the inlet pipe (2) is installed in the mounting hole (12) on the first cylindrical body (13), and the outlet pipe (3) is installed in the mounting hole (12) on the second cylindrical body (14), and the upper ends of the mounting holes (12) respectively have flanged portions (15) connected to the first cylindrical body (13) or the second cylindrical body (14), and the inlet pipe (2) or the outlet pipe (3) is inserted into the flanged portion (15) and fixed by welding.

5. The gas-liquid separator according to claim 4, characterized in that: One end of the inclined tube (6) is located in the second cylindrical body (14) and the other end extends obliquely upward into the first cylindrical body (13).

6. The gas-liquid separator according to claim 4, characterized in that: The outlet pipe (3), the curved pipe (5) and the inclined pipe (6) are connected to form an integrated structure and are interconnected; the bypass pipe (7) is connected to the inclined pipe (6) by welding and the bypass pipe (7) is in communication with the inclined pipe (6); and a filter screen (71) is provided on the inner side of one end of the bypass pipe (7) away from the inclined pipe (6).

7. The gas-liquid separator according to claim 6, characterized in that: The outlet pipe (3) and the inclined pipe (6) are not located in the same vertical plane, and the inclined pipe (6) is arranged to be inclined toward the front side or the rear side of the separation tank body (1).

8. The gas-liquid separator according to claim 1, characterized in that: The inlet pipe (2) and the outlet pipe (3) are exposed at the same height above the upper side of the separation tank body (1).

9. The gas-liquid separator according to claim 2, characterized in that: The closed ends of the first cylindrical body (13) and the second cylindrical body (14) respectively have an outwardly protruding arched portion (8).

10. The gas-liquid separator according to claim 1, characterized in that: The number of the mounting seats (4) is two and they are symmetrically arranged on the lower side of the separation tank body (1); the mounting seats (4) are provided with mounting grooves (41) matching the outer side of the separation tank body (1); the lower side of the separation tank body (1) is arranged in the mounting grooves (41) and fixedly connected by welding; and a plurality of fixing holes are provided on the mounting seats (4).

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