CN110805556A

CN110805556A - Pump body assembly, compressor and air conditioner with same

Info

Publication number: CN110805556A
Application number: CN201911007487.5A
Authority: CN
Inventors: 邹鹏; 魏会军; 徐嘉; 任丽萍; 万鹏凯
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-02-18

Abstract

The application provides a pump body assembly, which comprises a first flange part and a compression part, wherein the first flange part is arranged at one end of the compression part and comprises a first flange body, a flange cover plate, a separating part, a first air inlet channel and an oil outlet channel; the flange cover plate is covered on one end of the first flange body, which is far away from the air cylinder, and forms a separation cavity with the first flange body; the separating piece is arranged in the separating cavity and used for separating the lubricating oil and the refrigerant entering the separating cavity; the first air inlet channel is communicated with the separation cavity; the oil discharge passage is communicated with the separation cavity. According to the pump body assembly, the oil circulation rate of the compressor can be effectively reduced.

Description

Pump body assembly, compressor and air conditioner with same

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a pump body assembly, a compressor and an air conditioner with the pump body assembly and the compressor.

Background

At present, for a two-stage compressor with medium back pressure, the air pressure inside a shell is the pressure of a refrigerant after first compression, namely, intermediate pressure, the refrigerant is directly discharged out of the compressor from a second cylinder after second compression, and the oil circulation rate of the compressor is very high due to the mutual solubility of the refrigerant and a refrigeration oil part.

However, currently, the reduction of the compressor oil circulation rate includes three ways: the first is that the circulation groove is added on the partition plate, the oil groove is added at the exhaust port, the frozen oil discharged from the interior of the pump body assembly is introduced into the frozen oil pool in the interior of the shell through the oil groove, and the structure is limited by the internal structure space, so that the effect of reducing the oil circulation rate is not obvious. The second is that a cyclone oil-gas separation device is arranged outside the compressor, after the refrigerant discharged by the high-pressure stage compressor is separated, the lubricating oil is sent to the low-pressure stage for lubrication, but the mode does not carry out cooling and pressure reduction of the refrigeration oil, so that the oil reduction effect is not obvious. The third is that near the exhaust port of the upper flange, there is an oil hole communicated with the inside of the shell, and the refrigeration oil can be led into the oil pool of the shell from the oil hole, but the refrigeration oil is not suitable for the medium back pressure compressor due to the action of pressure difference.

Therefore, how to provide a pump body assembly capable of effectively reducing the oil circulation rate of a compressor and an air conditioner with the pump body assembly become a problem which needs to be solved by the technical personnel in the field.

Disclosure of Invention

Therefore, the technical problem to be solved by the application is to provide a pump body assembly, a compressor and an air conditioner with the pump body assembly, and the oil circulation rate of the compressor is effectively reduced.

In order to solve the above problem, the present application provides a pump body assembly, including first flange portion and compression portion, first flange portion set up in the one end of compression portion, first flange portion includes:

a first flange body;

the flange cover plate is covered on one end, far away from the air cylinder, of the first flange body and forms a separation cavity with the first flange body;

the separating piece is arranged in the separating cavity and is used for separating the lubricating oil and the refrigerant entering the separating cavity;

the first air inlet channel is communicated with the separation cavity and is used for guiding a mixture of lubricating oil and a refrigerant to enter the separation cavity;

and the oil discharge channel is communicated with the separation cavity and is used for guiding the separated lubricating oil to flow out.

Preferably, the first flange body comprises a flange end, and the separating piece is arranged on the surface of the flange end, which is far away from the cylinder;

and/or the separating piece is arranged on the flange cover plate.

Preferably, the separating member includes a fixing member and a rotating member, a first end of the fixing member is connected to the end portion of the flange or the flange cover plate, a second end of the fixing member extends toward the inside of the separating chamber, and the rotating member is sleeved outside the fixing member and can rotate around the fixing member.

Preferably, the rotating part comprises a fan blade sleeve and fan blades arranged on the outer surface of the fan blade sleeve, the fan blade sleeve is sleeved outside the fixing part, and the fan blade sleeve can rotate around the fixing part;

and/or the fixed part is a pin, the first end of the pin is connected with the end part of the flange or the flange cover plate, the second end of the pin extends towards the inside of the separation cavity, and the rotating part is sleeved outside the fixed part and can rotate around the pin.

Preferably, the surface of the end part of the flange, which is far away from the cylinder, is provided with a groove, and the groove and the flange cover plate form a separation cavity.

Preferably, the grooves comprise a first groove and a second groove, and the first groove is an annular groove circumferentially arranged around the central axis of the first flange body; the second groove is arranged on the outer peripheral side of the first groove and communicated with the first groove.

Preferably, the second recess sets up to a plurality of, and a plurality of second recesses set up around the central axis circumference of first flange body, and every second recess all is linked together with first recess.

Preferably, the separating member is provided in plurality, and a part of the plurality of separating members is disposed in the first groove, and another part is disposed in the second groove.

Preferably, the compressing part includes:

the first compression structure comprises a first cylinder, a first roller and a first sliding sheet; the first roller is arranged in the first cylinder, and the first sliding sheet is arranged between the cylinder body of the first cylinder and the first roller;

the second compression structure comprises a second cylinder, a second roller and a second sliding sheet; the second roller is arranged in the second cylinder, and the second slide sheet is arranged between the cylinder body of the second cylinder and the second roller; the second compression structure is arranged below the first compression structure; the first flange part is positioned below the second compression structure;

a separator disposed between and separating the first and second compression structures;

and the second flange part is arranged above the first compression structure.

Preferably, a second air inlet channel is formed in the second flange part and communicated with the first cylinder; the first air inlet channel is arranged on the first flange body; the first air inlet channel is communicated to an air suction port of the second air cylinder;

and/or the oil discharge channel is arranged on the flange cover plate.

According to still another aspect of the present application, there is provided a compressor, including a pump body assembly, the pump body assembly being the above pump body assembly.

Preferably, the method further comprises the following steps: casing and motor element, motor element and pump body subassembly set up in the casing, and motor element sets up in first compression structure's top.

Preferably, the shell is provided with an air supplementing port which is positioned above the first compression structure;

and/or an oil pool is arranged at the bottom in the shell, and the oil discharge channel is communicated with the separation cavity and the oil pool;

and/or the shell is provided with a first exhaust port, the first exhaust port is arranged at the top end of the shell, the compressor further comprises a first exhaust pipe, the first end of the first exhaust pipe is communicated to the exhaust port of the first compression structure, and the second end of the first exhaust pipe is communicated to the air suction port of the second compression structure.

Preferably, the first exhaust pipe is provided with a second gas cooler.

Preferably, the compressor further comprises a second discharge pipe, the second discharge pipe communicating with the separation chamber.

Preferably, the compressor further comprises an oil separator, and an inlet end of the oil separator is communicated to the second exhaust pipe.

Preferably, the compressor further comprises an oil return pipe, and the inlet end of the oil return pipe is communicated to the oil outlet of the oil separator;

and/or the outlet end of the oil return pipe is communicated to the shell;

and/or the compressor also comprises an air supplement pipeline, the air inlet end of the air supplement pipeline is communicated with the air outlet of the oil separator, and the air outlet end of the air supplement pipeline is communicated to the air supplement port.

Preferably, the compressor further includes an oil cooler provided on the oil return pipe.

Preferably, the air supply pipeline is provided with a first gas cooler.

Preferably, the air supplementing pipeline is also communicated with an economizer, the inlet end of the economizer is communicated with the first gas cooler, and the first outlet end of the economizer is communicated with the air supplementing port.

According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.

Preferably, the air conditioner further comprises a throttle mechanism and an evaporator, wherein an air inlet of the throttle mechanism is communicated to a second outlet end of the economizer; the first end of the evaporator is communicated to the outlet end of the throttling mechanism, and the second end of the evaporator is communicated to the air suction port of the first air cylinder.

The application provides a pump body subassembly, compressor and have its air conditioner, the mixture of lubricating oil and refrigerant gets into the separation chamber through first inlet channel, sets up the separator in the separation intracavity that forms between first flange body and flange apron, can effectually carry out oil-gas separation to the lubricating oil that gets into the separation chamber and the mixture of refrigerant to the lubricating oil after will separating is discharged through the oil extraction passageway, effectively reduces compressor oil circulation rate.

Drawings

Fig. 1 is a schematic structural diagram of a first flange body according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a first flange body according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a flange cover plate according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a flange cover plate according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a first flange body according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a compressor according to an embodiment of the present application.

The reference numerals are represented as:

11. a first flange body; 111. a first air intake passage; 112. an oil discharge passage; 12. a flange cover plate; 13. a groove; 2. a separating member; 21. a rotating member; 22. a fixing member; 3. a separator; 41. a first compression structure; 411. an air supplement port; 412. a first exhaust port; 42. a second compression structure; 5. an exhaust pipe; 61. an oil separator; 62. an oil cooler; 7. a first gas cooler; 81. an economizer; 82. a throttle mechanism; 83. an evaporator; 9. a second gas cooler.

Detailed Description

Referring to fig. 1 to 3 in combination, according to an embodiment of the present application, a pump body assembly includes a first flange portion and a compression portion, the first flange portion is disposed at one end of the compression portion, the first flange portion includes a first flange body 11, a flange cover plate 12, a separating member 2, a first air inlet passage 111 and an oil outlet passage 112, the flange cover plate 12 is disposed at a lower end of the first flange body 11, and forms a separation cavity with the first flange body 11; the separating piece 2 is arranged in the separating cavity, and the separating piece 2 is used for separating the lubricating oil and the refrigerant entering the separating cavity; the first air inlet channel 111 is communicated with the separation cavity, and the first air inlet channel 111 is used for guiding a mixture of lubricating oil and a refrigerant to enter the separation cavity; oil extraction passageway 112 and separation chamber intercommunication, oil extraction passageway 112 are used for the guide to separate the lubricating oil outflow, set up the separator in the separation intracavity that forms between first flange body and flange apron, can effectually carry out oil-gas separation to the mixture of the lubricating oil that gets into the separation chamber and refrigerant to the lubricating oil after will separating is discharged through oil extraction passageway, effectively reduces compressor oil circulation rate.

Referring to fig. 5 in combination, the present application also discloses embodiments where the diameter d of the cross section of the oil drainage channel 112 is less than or equal to 2 mm.

Further, the cross-section of the first air inlet channel 111 is wedge-shaped with an included angle of <60 °.

Further, the first flange body 11 includes a flange end portion, and the separator 2 is disposed on a surface of the flange end portion away from the cylinder;

and/or the separating element 2 is arranged on the flange cover 12.

Referring to fig. 4-5 in combination, the present application also discloses some embodiments, in which the separating member 2 includes a fixing member 22 and a rotating member 21, and the rotating member 21 is sleeved outside the fixing member 22.

Further, the rotary member 21 includes fan blades;

and/or, the fastener 22 is a pin,

further, the separating element 2 includes a fixing element 22 and a rotating element 21, a first end of the fixing element 22 is connected to the flange end or the flange cover 12, a second end of the fixing element 22 extends towards the inside of the separating cavity, and the rotating element 21 is sleeved outside the fixing element 22 and can rotate around the fixing element 22.

Further, the rotating part 21 is sleeved outside the fixing part 22, and the fan blade sleeve can rotate around the fixing part 22;

and/or, the fixed part 22 is a pin, a first end of the pin is connected with the flange end part or the flange cover plate 12, a second end of the pin extends towards the inside of the separation cavity, the rotating part 21 is sleeved outside the fixed part 22 and can rotate around the pin, when the refrigerant passes through the side surface of the rotating part 21 at a high speed, the rotating part 21 is pushed to rotate at a high speed, the refrigerant is thrown out of the side wall of the separation cavity under the action of centrifugal force, and the refrigerant oil can be separated from the refrigerant.

Referring to fig. 1-2 in combination, the present application also discloses embodiments, in which a groove 13 is formed on the surface of the flange end portion away from the cylinder, and the groove 13 and the flange cover plate 12 form a separation cavity.

Further, the grooves 13 include a first groove and a second groove, the first groove is an annular groove circumferentially disposed around the central axis of the first flange body 11; the second groove is arranged on the outer peripheral side of the first groove and communicated with the first groove.

Further, the second recess sets up to a plurality of, and a plurality of second recesses set up around the central axis circumference of first flange body 11, and every second recess all is linked together with first recess.

Further, the separating members 2 are provided in plurality, and one part of the separating members 2 is provided in the first groove, and the other part is provided in the second groove, so that the refrigerant and the lubricating oil can be more effectively separated.

Further, the compression part includes:

a first compression structure 41 including a first cylinder, a first roller, and a first slide; the first roller is arranged in the first cylinder, and the first sliding sheet is arranged between the cylinder body of the first cylinder and the first roller;

a second compression structure 42 including a second cylinder, a second roller, and a second vane; the second roller is arranged in the second cylinder, and the second slide sheet is arranged between the cylinder body of the second cylinder and the second roller; the second compression structure 42 is disposed below the first compression structure 41; the first flange body 11 is located below the second compression structure 42;

a partition 3, the partition 3 being disposed between the first and

second compression structures

41 and 42 and separating the first and

second compression structures

41 and 42;

and a second flange portion disposed above the first compression structure 41.

Furthermore, a second air inlet channel is formed in the second flange part and communicated with the first air cylinder; the first air inlet channel 111 is arranged on the first flange body 11; the first air intake passage 111 communicates to a second cylinder air intake port;

and/or the oil drain channel 112 is opened on the flange cover 12.

Referring to fig. 6 in combination, according to an embodiment of the present application, a compressor includes a pump body assembly, which is the pump body assembly described above.

Further, still include: casing and motor element, motor element and pump body subassembly set up in the casing, and motor element sets up in the top of first compression structure 41.

Further, an air supplement port 411 is formed in the casing, and the air supplement port 411 is located above the first compression structure 41;

and/or, the bottom in the shell is provided with an oil pool, and the oil discharge channel 112 is communicated with the separation cavity and the oil pool;

and/or, the casing is provided with a first exhaust port, the first exhaust port is opened at the top end of the casing, the compressor further comprises a first exhaust pipe 412, the first end of the first exhaust pipe 412 is communicated to the exhaust port of the first compression structure 41, the second end is communicated to the suction port of the second compression structure 42, the refrigerant oil can be separated from the refrigerant, a part of the refrigerant oil enters the suction port of the second cylinder through the oil discharge channel 112 of the 18-lower flange, and finally enters the second compression structure 42 for lubrication, and the other part of the refrigerant oil enters the oil pool through the oil discharge channel 112 from the flange cover plate 12.

Further, the first exhaust pipe 412 is provided with a second gas cooler 9.

Further, the compressor also comprises a second discharge pipe 5, the second discharge pipe 5 being in communication with the separation chamber.

Further, the compressor further includes an oil separator 61, and an inlet end of the oil separator 61 is communicated to the second exhaust pipe 5.

Further, the compressor also comprises an oil return pipe, and the inlet end of the oil return pipe is communicated to the oil outlet of the oil separator 61;

and/or the outlet end of the oil return pipe is communicated to the shell;

and/or the compressor further comprises an air supplement pipeline, an air inlet end of the air supplement pipeline is communicated with an air outlet of the oil separator 61, and an air outlet end of the air supplement pipeline is communicated to the air supplement port 411.

Further, the compressor further includes an oil cooler 62, and the oil cooler 62 is disposed on the oil return pipe.

Further, a first gas cooler 7 is arranged on the gas supply pipeline.

Further, the air supply pipeline is also communicated with an economizer 81, the inlet end of the economizer 81 is communicated with the first gas cooler 7, and the first outlet end is communicated with the air supply opening 411.

Referring to fig. 6 in combination, according to an embodiment of the present application, an air conditioner includes a compressor, and the compressor is the above-mentioned compressor.

Further, the air conditioner further comprises a throttling mechanism 82 and an evaporator 83, wherein an air inlet of the throttling mechanism 82 is communicated to a second outlet end of the economizer 81; the evaporator 83 has a first end connected to the outlet end of the throttling mechanism 82, a second end connected to the suction port of the first cylinder, because the refrigerant and the refrigerant oil are partially dissolved mutually, the refrigerant enters the second gas cooler 9 through the first exhaust pipe 412 to be cooled, enters the second compression structure 42 through the suction port of the second cylinder to be subjected to secondary compression, finally enters the oil separator 61 through the second exhaust pipe 5 to be subjected to oil-gas separation, the lubricating oil returns to the shell through the oil return pipe and returns to the oil pool under the action of gravity, the gas enters the first gas cooler 7 to exchange heat, then the refrigerant enters the economizer 81 with the refrigerant oil, a part of the refrigerant flashes into gaseous refrigerant, the refrigerant oil enters the gas supplementing port 411 through the gas supplementing pipeline, and then enters the shell, and the other part of the refrigerant oil is throttled and depressurized through the throttling mechanism 82, the heat absorption is performed in the evaporator 83, and finally, the low-temperature and low-pressure gaseous refrigerant carries the refrigerant oil to enter the first compression structure through the suction port of the first cylinder, thereby forming a refrigerant oil flow cycle.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. The utility model provides a pump body subassembly, includes first flange portion and compression portion, first flange portion set up in the one end of compression portion, its characterized in that, first flange portion includes:

a first flange body (11),

the flange cover plate (12) is arranged at one end, far away from the air cylinder, of the first flange body (11) in a covering mode, and a separation cavity is formed between the flange cover plate (12) and the first flange body (11);

the separating piece (2) is installed inside the separating cavity, and the separating piece (2) is used for separating lubricating oil and a refrigerant entering the separating cavity;

the first air inlet channel (111), the first air inlet channel (111) is communicated with the separation cavity, and the first air inlet channel (111) is used for guiding a mixture of lubricating oil and a refrigerant to enter the separation cavity;

and an oil discharge passage (112), wherein the oil discharge passage (112) is communicated with the separation cavity, and the oil discharge passage (112) is used for guiding the separated lubricating oil to flow out.

2. The pump body assembly according to claim 1, characterized in that the first flange body (11) comprises a flange end, the separator (2) being arranged on a surface of the flange end remote from the cylinder;

and/or the separating element (2) is arranged on the flange cover plate (12).

3. The pump body assembly according to claim 2, characterized in that the separating member (2) comprises a fixed member (22) and a rotating member (21), a first end of the fixed member (22) is connected with the flange end or the flange cover plate (12), a second end of the fixed member (22) extends towards the inside of the separating chamber, and the rotating member (21) is sleeved outside the fixed member (22) and can rotate around the fixed member (22).

4. The pump body assembly according to claim 3, wherein the rotary member (21) comprises a fan blade sleeve and fan blades arranged on the outer surface of the fan blade sleeve, the fan blade sleeve is arranged outside the fixed member (22), and the fan blade sleeve can rotate around the fixed member (22);

and/or, the mounting (22) is the pin, the first end of pin with flange tip or flange apron (12) are connected, the second end of pin to separation intracavity portion extends, revolving part (21) cover is located outside mounting (22), and can encircle the pin is rotatory.

5. The pump block assembly according to claim 1, characterized in that the surface of the flange end remote from the cylinder is provided with a groove (13), said groove (13) forming with the blind flange (12) the separation chamber.

6. The pump body assembly according to claim 5, characterized in that the recess (13) comprises a first recess and a second recess, the first recess being an annular groove disposed circumferentially around a central axis of the first flange body (11); the second groove is arranged on the outer peripheral side of the first groove and communicated with the first groove.

7. The pump body assembly according to claim 6, wherein the second recess is provided in a plurality, the plurality of second recesses being circumferentially provided around a central axis of the first flange body (11), and each of the second recesses being in communication with the first recess.

8. The pump body assembly according to claim 7, characterized in that said separating members (2) are provided in plurality, one portion of said separating members (2) being provided in said first recess and the other portion being provided in said second recess.

9. The pump body assembly of claim 1, wherein the compression portion comprises:

a first compression structure (41) comprising a first cylinder, a first roller, a first slide; the first roller is arranged in a first cylinder, and the first sliding sheet is arranged between a cylinder body of the first cylinder and the first roller;

a second compression structure (42) comprising a second cylinder, a second roller, a second vane; the second roller is arranged in a second cylinder, and the second sliding sheet is arranged between the cylinder body of the second cylinder and the second roller; the second compression structure (42) is arranged below the first compression structure (41); the first flange portion is located below the second compression structure (42);

a partition (3), said partition (3) being disposed between said first and second compression structures (41, 42) and separating said first and second compression structures (41, 42);

a second flange portion disposed above the first compression structure (41).

10. The pump body assembly according to claim 9, wherein a second air intake passage is defined in the second flange portion, the second air intake passage communicating with the first cylinder; the first air inlet channel (111) is arranged on the first flange body (11), and the first air inlet channel (111) is communicated to a second air cylinder air suction port;

and/or the oil discharge channel (112) is arranged on the flange cover plate (12).

11. A compressor comprising a pump body assembly, characterized in that it is a pump body assembly according to any one of claims 1 to 10.

12. The compressor of claim 11, further comprising: casing and motor element, motor element and pump body subassembly set up in the casing, motor element sets up in the top of first compression structure (41).

13. The compressor according to claim 12, characterized in that the housing is provided with an air supplement port (411), and the air supplement port (411) is positioned above the first compression structure (41);

and/or an oil pool is arranged at the bottom in the shell, and the oil discharge channel (112) is communicated with the separation cavity and the oil pool;

and/or a first exhaust port is formed in the shell and opened at the top end of the shell, the compressor further comprises a first exhaust pipe (412), a first end of the first exhaust pipe (412) is communicated to an exhaust port of the first compression structure (41), and a second end of the first exhaust pipe is communicated to an air suction port of the second compression structure (42).

14. Compressor according to claim 13, characterized in that a second gas cooler (9) is provided on the first exhaust pipe (412).

15. Compressor according to claim 13, characterized in that it further comprises a second discharge duct (5), said second discharge duct (5) communicating with said separation chamber.

16. A compressor according to claim 15, further comprising an oil separator (61), an inlet end of the oil separator (61) being connected to the second discharge duct (5).

17. The compressor according to claim 16, further comprising an oil return pipe, an inlet end of the oil return pipe being communicated to an oil outlet of the oil separator (61);

and/or the outlet end of the oil return pipe is communicated to the shell;

and/or the compressor further comprises an air supplement pipeline, the air inlet end of the air supplement pipeline is communicated with the air outlet of the oil separator (61), and the air outlet end of the air supplement pipeline is communicated to the air supplement port (411).

18. The compressor of claim 17, further comprising an oil cooler (62), the oil cooler (62) being disposed on the oil return tube.

19. Compressor according to claim 17, characterized in that a first gas cooler (7) is arranged on the gas supply line.

20. The compressor of claim 19, wherein the gas supplementing pipeline is further communicated with an economizer (81), an inlet end of the economizer (81) is communicated with the first gas cooler (7), and a first outlet end is communicated with the gas supplementing opening (411).

21. An air conditioner comprising a compressor, wherein the compressor is as claimed in any one of claims 1 to 20.

22. The air conditioner according to claim 21, further comprising a throttle mechanism (82) and an evaporator (83), an air inlet of the throttle mechanism (82) being communicated to a second outlet port of the economizer (81); the first end of the evaporator (83) is communicated to the outlet end of the throttling mechanism (82), and the second end of the evaporator is communicated to the air suction port of the first cylinder.