Integrated double-barrel oil separator

Abstract

The invention provides an integrated double-barrel oil separator, and relates to the field of oil separators, the integrated double-barrel oil separator comprises two same main bodies arranged side by side, and an oil outlet pipe, an air inlet pipe and an air outlet pipe which are respectively positioned on the two main bodies; mounting structures are arranged at the bottoms of the main bodies, and the lower ends of the two main bodies are welded and fixed through welding parts; the oil outlet pipe is arranged on the side wall of the lower half part of the main body; the air inlet pipe is arranged on the side wall of the upper half part of the main body; the air outlet pipe is arranged in the center of the top of the main body; a three-way filtering structure is arranged at the end of the oil outlet pipe, three outlet stations are arranged on the three-way filtering structure, and a filtering net is arranged in the three-way filtering structure. According to the three-way filtering structure integrated on the main body, parallel and serial pipeline assemblies can be effectively reduced, and the three-way filtering structure does not interfere with a condensate fan, an electric control cabinet and other components any more.

Description

Technical Field

[0001] The present invention relates to the field of oil separators, and specifically to an integrated double-barrel oil separator. Background Technique

[0002] The oil separator is a key component of the compression refrigeration cycle, used to separate the lubricating oil carried in the compressor exhaust, preventing excessive lubricating oil from entering the evaporator / condenser and causing a decrease in heat exchange efficiency. Its oil outlet pipe needs to stably return the separated lubricating oil to the compressor crankcase or oil collector, and at the same time needs to meet functional requirements such as dynamic oil return control, oil circuit safety guarantee, and impurity filtration.

[0003] The existing oil separator usually uses a single flange or threaded interface for the oil outlet and gas outlet. To meet the above functional requirements, multiple sets of parallel or serial pipelines and accessories need to be externally connected. These components are connected by pipe fittings such as tees and elbows. More than 3 sets of independent pipes need to be arranged around the oil outlet of a single oil separator. When multiple sets of oil separators need to be connected in series, the number of pipes is even more. In a compact unit, it is very easy to interfere with components such as the condenser fan and the electrical control cabinet.

[0004] The existing multi-pipeline external connection design of the oil separator has a significant contradiction between functional realization and space efficiency. It is urgent to break through the existing architecture through flow channel integration, topology optimization or intelligent valve technology to meet the upgrading needs of high-density and high-reliability refrigeration systems. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated double-barrel oil separator and a compressor with the one-way valve, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An integrated double-barrel oil separator, including two identical main bodies arranged side by side, and an oil outlet pipe, an air inlet pipe and an air outlet pipe respectively located on the two main bodies;

[0007] The bottom of the main body is provided with an installation structure, and the lower ends of the two main bodies are fixedly welded by welding parts;

[0008] The oil outlet pipe is arranged on the side wall of the lower half of the main body;

[0009] The air inlet pipe is arranged on the side wall of the upper half of the main body;

[0010] The air outlet pipe is arranged at the central position of the top of the main body;

[0011] The end of the oil outlet pipe is provided with a three-way filtering structure, the three-way filtering structure is provided with three outlet stations, and a filter screen is arranged in the three-way filtering structure;

[0012] An integrated one-way valve is installed on the outlet pipe, and the top of the integrated one-way valve is connected through a three-way pipe.

[0013] Preferably, the main body includes an upper cover, a housing, and a lower cover. The upper cover is welded to the top of the housing, and the lower cover is welded to the bottom of the housing. A gas pressure switch is installed on the side wall of the housing at the upper end of the housing.

[0014] Preferably, the main body includes an upper cover, a housing, and a lower cover. The upper cover is welded to the top of the housing, and the lower cover is welded to the bottom of the housing.

[0015] Preferably, the installation structure is a mounting plate. The upper end of the mounting plate is welded to the lower cover, and mounting holes are provided on the mounting plate.

[0016] Preferably, the oil outlet pipe is installed on the side wall of the housing through a sealing ring, and the position of the sealing ring is at 1 / 5 of the total height measured upward from the bottom of the main body. The mouth of the pipe body of the oil outlet pipe inside the housing is 5-10 mm above the lower cover, and the pipe body of the oil outlet pipe outside the housing is arranged vertically upward.

[0017] Preferably, the inlet pipe is arranged tangentially along the side wall of the housing, and the position of the inlet pipe is between 1 / 5 and 1 / 4 of the total height measured downward from the top of the main body.

[0018] Preferably, the three-way filtering structure includes a connecting pipe and three outlet stations, namely a first outlet, a second outlet, and a third outlet. The root of the connecting pipe is welded and fixed on the oil outlet pipe. The first outlet, the second outlet, and the third outlet are arranged side by side and are independent of each other. The first outlet is connected to a solenoid valve through a pipe. A capillary tube is connected to the second outlet. The third outlet is connected to a pressure switch through a pipe.

[0019] Preferably, the pressure switch is installed on a support plate, and the support plate is welded to the side wall of the housing.

[0020] Preferably, the integrated one-way valve includes a one-way valve, a protective cover, a welding seat, and an exhaust pipe. The one-way valve is installed inside the protective cover. The upper end of the welding seat is connected to the protective cover, and the lower end is connected to the exhaust pipe. The welding seat is welded and fixed to the housing.

[0021] Preferably, the three-way pipe includes a lower branch pipe, a three-hole joint, and a straight pipe. The lower branch pipe includes two symmetrically arranged parts, and the lower port is connected to the integrated one-way valve. The upper port of the lower branch pipe is connected to the inside of the three-hole joint. The bottom of the straight pipe is connected to the inside of the three-hole joint.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The one-way valve integrated on the main body in the present invention can reduce the newly added pipelines when the existing one-way valve is connected to the existing main body, while fixing the position of the one-way valve, facilitating installation in the whole unit, and reducing the occupied space.

[0024] 2. The three-way filtering structure integrated on the main body in the present invention can meet the functional requirements such as dynamic oil return control, oil circuit safety guarantee, and impurity filtration, while effectively reducing parallel and serial pipeline components and no longer interfering with components such as the condensation fan and the electric control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the structural diagram of the present invention;

[0026] Figure 2 is the top view of the present invention;

[0027] Figure 3 is Figure 2 the sectional structural diagram at C-C inside;

[0028] Figure 4 is Figure 3 the enlarged structural diagram at D inside;

[0029] Figure 5 is Figure 3 the enlarged structural diagram at E inside;

[0030] Figure 6 is the front view of the present invention.

[0031] In the figure: 1 - main body; 11 - upper cover; 12 - housing; 13 - lower cover; 14 - mounting plate; 15 - mounting hole; 16 - gas pressure switch;

[0032] 2 - oil outlet pipe; 21 - sealing ring;

[0033] 3 - intake pipe;

[0034] 5 - three-way filtering structure; 51 - connecting pipe; 52 - first outlet; 53 - second outlet; 54 - third outlet;

[0035] 55 - solenoid valve; 56 - capillary tube; 57 - pressure switch; 571 - support plate;

[0036] 6 - integrated one-way valve; 61 - one-way valve; 62 - protective cover; 63 - welding seat; 64 - exhaust pipe;

[0037] 7 - three-way pipe; 71 - lower branch pipe; 72 - three-hole joint; 73 - straight pipe. DETAILED DESCRIPTION OF THE INVENTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 to 6 , the present invention provides a technical solution: an integrated double-barrel oil separator, including two identical main bodies 1 arranged side by side, an oil outlet pipe 2, an air inlet pipe 3 and an air outlet pipe respectively located on the two main bodies 1;

[0040] An installation structure is provided at the bottom of the main body 1, and the lower ends of the two main bodies 1 are fixedly welded by a welding part;

[0041] The oil outlet pipe 2 is arranged on the side wall of the lower half of the main body 1;

[0042] The air inlet pipe 3 is arranged on the side wall of the upper half of the main body 1;

[0043] The air outlet pipe is arranged at the central position of the top of the main body 1;

[0044] A three-way filtering structure 5 is provided at the end of the oil outlet pipe 2. The three-way filtering structure 5 has three outlet stations, and a filter screen is arranged in the three-way filtering structure 5;

[0045] An integrated check valve 6 is installed on the air outlet pipe, and the top of the integrated check valve 6 is communicated through a three-way pipe 7.

[0046] In this embodiment, the main body 1 includes an upper cover 11, a housing 12 and a lower cover 13. The upper cover 11 is welded to the top of the housing 12, the lower cover 13 is welded to the bottom of the housing 12, and a gas pressure switch 16 installed on the side wall of the housing 12 is provided at the upper end of the housing 12.

[0047] In this embodiment, the installation structure is an installation plate 14. The upper end of the installation plate 14 is welded to the lower cover 13, and installation holes 15 are provided on the installation plate 14 for fixedly installing the main body 1 in the unit.

[0048] In this embodiment, the oil outlet pipe 2 is installed on the side wall of the housing 12 through a sealing ring 21, and the position of the sealing ring 21 is at 1 / 5 of the total height from the bottom of the main body 1 upward. The pipe orifice of the oil outlet pipe 2 located inside the housing 12 is 5-10 mm above the lower cover 13. The pipe body of the oil outlet pipe 2 located outside the housing 12 is arranged vertically upward, close to the bottom of the lower cover 13, facilitating the discharge of oil.

[0049] In this embodiment, the intake pipe 3 is arranged tangentially along the side wall of the housing 12, and the position of the intake pipe 3 is between 1 / 5 and 1 / 4 of the total height measured downward from the top of the main body 1. The intake pipe 3 is used to introduce the gas mixed with oil and gas.

[0050] In this embodiment, the three-way filter structure 5 includes a connecting pipe 51 and three outlet stations, namely a first outlet 52, a second outlet 53, and a third outlet 54. The root of the connecting pipe 51 is welded and fixed on the oil outlet pipe 2. The first outlet 52, the second outlet 53, and the third outlet 54 are arranged side by side and are independent of each other. The first outlet 52 is connected to the solenoid valve 55 through a pipeline. A capillary tube 56 is connected to the second outlet 53. The third outlet 54 is connected to the pressure switch 57 through a pipeline. Through this three-way filter structure 5, the solenoid valve, the pressure switch 57, and the capillary tube can be integrated on the main body 1, replacing the way of connecting separately through pipelines in the prior art, simplifying the pipeline design, and saving the space of the unit.

[0051] In this embodiment, the pressure switch 57 is installed on the support plate 571, and the support plate 571 is welded to the side wall of the housing 12 to fix the position of the pressure switch 57.

[0052] In this embodiment, the integrated check valve 6 includes a check valve 61, a protective cover 62, a welding seat 63, and an exhaust pipe 64. The check valve 61 is installed in the protective cover 62. The upper end of the welding seat 63 is connected to the protective cover 62, and the lower end is connected to the exhaust pipe 64. The welding seat 63 is welded and fixed to the housing 12. The check valve 61 is connected to the main body 1 by welding, which can also save space.

[0053] In this embodiment, the three-way pipe 7 includes a lower branch pipe 71, a three-hole joint 72, and a straight pipe 73. The lower branch pipe 71 includes two symmetrically arranged parts, and the lower port is connected to the integrated check valve 6. The upper port of the lower branch pipe 71 is connected to the three-hole joint 72. The bottom of the straight pipe 73 is connected to the three-hole joint 72. By arranging the three-way pipe 7, two independent oil separators are connected. This connection can replace the way of separately arranging the pipelines for exhaust on each oil separator in the prior art, reduce the occupied space of these pipelines, regularize the pipeline bundle, and make it neater.

[0054] Based on the above, the check valve integrated on the main body in the present invention can reduce the new pipelines added when the existing check valve is connected to the existing main body, and at the same time fix the position of the check valve, which is convenient for installation in the whole unit and can reduce the occupied space. The three-way filter structure integrated on the main body in the present invention can meet the functional requirements such as dynamic oil return control, oil circuit safety guarantee, and impurity filtration, and can effectively reduce the parallel and serial pipeline components, and no longer interfere with components such as the condensing fan and the electric control cabinet.

[0055] As is known to those skilled in the art, the present invention can be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the above-disclosed embodiments are illustrative in all respects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. An integrated double-barrel oil separator, characterized in that: It includes two identical bodies (1) arranged side by side, as well as an oil outlet pipe (2), an air inlet pipe (3), and an air outlet pipe respectively located on the two bodies (1); An installation structure is provided at the bottom of the body (1), and the lower ends of the two bodies (1) are fixedly welded by a welding piece; The oil outlet pipe (2) is arranged on the side wall of the lower half of the body (1); The air inlet pipe (3) is arranged on the side wall of the upper half of the body (1); The air outlet pipe is arranged at the central position of the top of the body (1); The end of the oil outlet pipe (2) is provided with a three-way filtering structure (5), the three-way filtering structure (5) has three outlet stations, and a filter screen is arranged inside the three-way filtering structure (5); An integrated check valve (6) is installed on the air outlet pipe, and the top of the integrated check valve (6) is communicated through a three-way pipe (7).

2. The integrated double-barrel oil separator according to claim 1, wherein: The body (1) includes an upper cover (11), a housing (12), and a lower cover (13). The upper cover (11) is welded to the top end of the housing (12), the lower cover (13) is welded to the bottom of the housing (12), and a gas pressure switch (16) installed on the side wall of the housing (12) is provided at the upper end of the housing (12).

3. The integrated double-barrel oil separator according to claim 2, wherein: The installation structure is an installation plate (14). The upper end of the installation plate (14) is welded to the lower cover (13), and installation holes (15) are provided on the installation plate (14).

4. The integrated double-barrel oil separator according to claim 2, wherein: The oil outlet pipe (2) is installed on the side wall of the housing (12) through a sealing ring (21), and the position of the sealing ring (21) is at 1 / 5 of the total height measured from the bottom of the body (1) upward. The pipe orifice of the oil outlet pipe (2) located inside the housing (12) is 5 - 10 mm above the lower cover (13), and the pipe body of the oil outlet pipe (2) located outside the housing (12) is arranged vertically upward.

5. An integrated double-barrel oil separator according to claim 2, characterized in that: The air inlet pipe (3) is arranged tangentially along the side wall of the housing (12), and its position is between 1 / 5 and 1 / 4 of the total height measured from the top of the body (1) downward.

6. The integrated double-barrel oil separator according to claim 2, characterized in that: The three-way filtering structure (5) includes a connecting pipe (51) and three outlet stations: a first outlet (52), a second outlet (53), and a third outlet (54). The root of the connecting pipe (51) is welded and fixed to the oil outlet pipe (2). The first outlet (52), the second outlet (53), and the third outlet (54) are arranged side by side and are independent of each other. The first outlet (52) is connected to an electromagnetic valve (55) through a pipeline. A capillary tube (56) is connected to the second outlet (53), and the third outlet (54) is connected to a pressure switch (57) through a pipeline.

7. An integrated double-barrel oil separator according to claim 6, characterized in that: The pressure switch (57) is installed on a support plate (571), and the support plate (571) is welded to the side wall of the housing (12).

8. The integrated double-barrel oil separator according to claim 2, characterized in that: The integrated check valve (6) includes a check valve (61), a protective cover (62), a welding seat (63), and an exhaust pipe (64). The check valve (61) is installed inside the protective cover (62). The upper end of the welding seat (63) is connected to the protective cover (62), and the lower end is connected to the exhaust pipe (64). The welding seat (63) is welded and fixed to the housing (12).

9. The integrated double-barrel oil separator according to claim 2, characterized in that: The tee pipe (7) includes a lower branch pipe (71), a three-hole joint (72), and a straight pipe (73). The two lower branch pipes (71) are symmetrically arranged, and the lower port is connected to the integrated one-way valve (6). The upper port of the lower branch pipe (71) is connected to the inside of the three-hole joint (72), and the bottom of the straight pipe (73) is connected to the inside of the three-hole joint (72).

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