CN210423010U

CN210423010U - Compressor with advance exhaust function and air conditioning system

Info

Publication number: CN210423010U
Application number: CN201921342234.9U
Authority: CN
Inventors: 龙忠铿; 刘志华; 武晓昆; 曾祥熙; 李磊
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-28
Anticipated expiration: 2029-08-16

Abstract

The utility model provides a compressor and air conditioning system with exhaust function in advance. The compressor, which comprises a housin, the inside chamber of breathing in, rotor chamber and the exhaust chamber that communicates in proper order that forms of casing, the one end in rotor chamber with the exhaust chamber intercommunication forms exhaust passage, just the exhaust hole in the middle of having seted up in week in rotor chamber, middle exhaust hole with form bypass passage between the exhaust chamber. The utility model provides a compressor and air conditioning system with exhaust function in advance sets up middle exhaust hole in the week side in rotor chamber, carries out the comparison with the intermediate pressure in the rotor chamber and condensation pressure, when intermediate pressure has been greater than condensation pressure, directly adopts the intermediate pressure to exhaust, effectively alleviates the problem of compressor over-compression to reduce the useless work and the energy consumption of compressor.

Description

Compressor with advance exhaust function and air conditioning system

Technical Field

The utility model relates to a compressor arrangement technical field, especially a compressor and air conditioning system with function of exhausting in advance.

Background

The screw compressor is one kind of rotary volumetric compressor, and its core part is a pair of female and male rotors with spiral shape and intermeshing, and female and male rotors and corresponding casing form the closed appearance chamber, and this appearance chamber constantly changes along with the rotor rotation, realizes gaseous compression or inflation, and when external environment changes, make low pressure and high-pressure difference less, cause low pressure difference operating mode, and the discharge pressure of compressor this moment is greater than condensing pressure, also is in the over-compression state for the compressor is useless consumption increase, and economic benefits reduces.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that the power consumption is increased when the compressor is in over-compression, the compressor with the early exhaust function and the air conditioning system are provided, and exhaust is performed according to the condensation pressure requirement.

The utility model provides a compressor, includes the casing, inside chamber, rotor chamber and the exhaust chamber of breathing in that communicates in proper order that forms of casing, the one end in rotor chamber with the exhaust chamber intercommunication forms exhaust passage, just the exhaust hole in the middle of has been seted up in week side in rotor chamber, in the middle of the exhaust hole with form bypass channel between the exhaust chamber.

The rotor cavity is arranged in the direction from the air suction cavity to the air exhaust cavity and sequentially ranges from a low-pressure air suction pressure area, an intermediate pressure area and an air exhaust high-pressure area, the pressure of the low-pressure air suction pressure area is smaller than that of the intermediate pressure area, and the intermediate air exhaust hole is formed in the intermediate pressure area.

The rotor cavity is internally provided with a rotor, tooth grooves are formed in the peripheral sides of the rotor, one end of each tooth groove is connected with the low-pressure suction pressure area, the other end of each tooth groove is connected with the exhaust high-pressure area, and the middle exhaust hole is connected with the tooth grooves in an internal mode.

A one-way valve is arranged in the bypass channel, and the flow direction of the one-way valve is directed to the exhaust cavity from the intermediate pressure area.

The check valve is a plunger type check valve or a door type check valve.

And a pressure control valve is arranged in the bypass channel, a first pressure inlet of the control valve is communicated with the intermediate pressure area, a second pressure inlet of the control valve is communicated with the exhaust cavity, and when the pressure of the intermediate pressure area is greater than the pressure in the exhaust cavity, the pressure control valve controls the bypass channel to be opened.

The pressure control valve comprises a piston, an avoiding groove is formed in the bypass channel, the piston is arranged in the bypass channel, one side of the piston forms the first pressure inlet, the other side of the piston forms the second pressure inlet, when the pressure of the first pressure inlet is larger than the pressure of the second pressure inlet, the piston slides into the avoiding groove, the first pressure inlet is communicated with the second pressure inlet, and when the pressure of the first pressure inlet is smaller than or equal to the pressure of the second pressure inlet, the piston is separated from the avoiding groove and enables the first pressure inlet and the second pressure inlet to be disconnected.

The pressure control valve further comprises an elastic piece, the elastic piece is arranged in the avoidance groove, and when the piston slides into the avoidance groove, the elastic piece is in a compression state.

The elastic piece is a spring.

The number of the middle exhaust holes is multiple, all the middle exhaust holes are distributed on the middle pressure area along the direction from the low-pressure suction pressure area to the exhaust high-pressure area, and a bypass channel is formed between each middle exhaust hole and the exhaust cavity.

An air conditioning system comprises the compressor.

The utility model provides a compressor and air conditioning system with exhaust function in advance sets up middle exhaust hole in the week side in rotor chamber, carries out the comparison with the intermediate pressure in the rotor chamber and condensation pressure, when intermediate pressure has been greater than condensation pressure, directly adopts the intermediate pressure to exhaust, effectively alleviates the problem of compressor over-compression to reduce the useless work and the energy consumption of compressor.

Drawings

Fig. 1 is a schematic structural diagram of a compressor and an air conditioning system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a rotor chamber of an embodiment of a compressor and air conditioning system with advanced venting provided by the present invention;

fig. 3 is a schematic structural diagram of an air conditioning system according to an embodiment of the present invention, wherein the compressor has an early exhaust function;

in the figure:

1. a housing; 2. an air suction cavity; 3. a rotor cavity; 4. an exhaust chamber; 5. a bypass channel; 31. a low suction pressure zone; 32. an intermediate pressure zone; 33. a high pressure zone for exhaust; 6. a piston; 34. a middle vent hole; 7. a condenser; 8. an evaporator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The compressor shown in fig. 1 and 2 comprises a housing 1, the inside suction chamber 2, the rotor chamber 3 and the exhaust chamber 4 that communicate in proper order that form of casing 1, the one end of rotor chamber 3 with the exhaust chamber 4 intercommunication forms exhaust passage, just middle exhaust hole 34 has been seted up to the week side in rotor chamber 3, middle exhaust hole 34 with form bypass passage 5 between the exhaust chamber 4, compare middle pressure Pm in the rotor chamber 3 with condensing pressure Pe, when middle pressure Pm has been greater than condensing pressure Pe, show that the compressor is in the state of over-compressing this moment, directly adopt middle pressure Pm to exhaust, effectively alleviate the problem that the compressor over-compressed to reduce useless work and the energy consumption of compressor.

The compressor is a positive displacement compressor, the refrigerant is gradually compressed along with the rotation of the rotor, so that the pressure of the refrigerant is correspondingly increased, the rotor cavity 3 sequentially ranges from a low-pressure suction pressure area 31, an intermediate pressure area 32 and a discharge high-pressure area 33 along the direction from the suction cavity 2 to the discharge cavity 4, the pressure of the low-pressure suction pressure area 31 is less than the pressure Pm of the intermediate pressure area 32 is less than the pressure Pd of the discharge high-pressure area 33, and the intermediate discharge hole 34 is arranged at the intermediate pressure area 32.

The rotor cavity 3 is internally provided with a rotor, tooth grooves are formed in the peripheral sides of the rotor, one end of each tooth groove is connected with the low-pressure suction pressure area 31, the other end of each tooth groove is connected with the exhaust high-pressure area 33, and the middle exhaust hole 34 is connected with the tooth grooves in an inner mode.

A one-way valve is arranged in the bypass channel 5, the flow direction of the one-way valve is directed to the exhaust cavity 4 from the intermediate pressure area 32, and the problem of refrigerant backflow caused by the fact that the pressure Pe in the exhaust cavity 4 is larger than the pressure Pm in the intermediate pressure area 32 is avoided.

The check valve is a plunger type check valve or a door type check valve.

In order to avoid frequent communication of the bypass channel 5, a pressure control valve is provided in the bypass channel 5, a first pressure inlet of the control valve is communicated with the intermediate pressure area 32, a second pressure inlet is communicated with the exhaust chamber 4, and the pressure control valve controls the bypass channel 5 to open when the pressure in the intermediate pressure area 32 is greater than the pressure in the exhaust chamber 4.

The pressure control valve comprises a piston 6, an avoidance groove is arranged in the bypass channel 5, the piston 6 is arranged in the bypass channel 5, and one side of the piston 6 forms the first pressure inlet and the other side forms the second pressure inlet, when the pressure of the first pressure inlet is greater than the pressure of the second pressure inlet, the piston 6 slides into the avoidance groove and the first pressure inlet is communicated with the second pressure inlet, when the pressure of the first pressure inlet is less than or equal to the pressure of the second pressure inlet, the piston 6 is separated from the avoidance groove and the first pressure inlet and the second pressure inlet are disconnected, that is, the piston 6 slides according to the difference of the pressures borne by the two sides of the piston (the condensation pressure Pe of the exhaust cavity — the middle pressure Pm of the middle pressure area), thereby realizing automatic control.

The pressure control valve further comprises an elastic piece, the elastic piece is arranged in the avoidance groove, when the piston 6 slides into the avoidance groove, the elastic piece is in a compression state, the piston 6 can reset by utilizing the elastic piece, and the reliability of the piston 6 is guaranteed.

The elastic piece is a spring.

The number of the middle exhaust holes 34 is plural, all the middle exhaust holes 34 are distributed on the middle pressure area 32 along the direction from the low pressure suction pressure area 31 to the exhaust high pressure area 33, and one bypass channel 5 is formed between each middle exhaust hole 34 and the exhaust cavity 4, wherein each middle exhaust hole 34 has a middle pressure Pm value, and as the refrigerant is compressed, the middle pressure Pm value increases from the low pressure suction pressure area 31 to the exhaust high pressure area 33, and during the use, the condensing pressure Pe in the exhaust cavity 4 is compared with all the middle pressure Pm values, when the condensing pressure Pe is larger than all the middle pressure Pm values, the compressor is in a normal compression state, all the middle exhaust holes 34 are in a closed state, and when the condensing pressure Pe is smaller than one or more middle pressure Pm values, the compressor at this time is indicated to be in an over-compression state, and the middle exhaust hole 34 corresponding to the minimum middle pressure Pm is communicated with the bypass channel 5 under the control of the pressure difference value to realize middle exhaust, so that the over-compression state of the compressor is solved.

The air conditioning system shown in fig. 3 comprises the compressor, the condenser 7 and the evaporator 8, wherein the compressor, the condenser 7 and the evaporator 8 are sequentially communicated to form a heat exchange cycle, the condenser 7 is communicated with the exhaust cavity, and the evaporator 8 is communicated with the suction cavity.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A compressor, characterized by: including casing (1), casing (1) inside formation suction chamber (2), rotor chamber (3) and the chamber of exhausting (4) that communicate in proper order, the one end of rotor chamber (3) with chamber of exhausting (4) intercommunication forms exhaust passage, just middle exhaust hole (34) have been seted up to the week side in rotor chamber (3), middle exhaust hole (34) with form bypass passage (5) between chamber of exhausting (4).

2. The compressor of claim 1, wherein: rotor chamber (3) are followed suction chamber (2) arrive the direction of exhaust chamber (4) scope low pressure suction pressure district (31), intermediate pressure district (32) and exhaust high-pressure district (33) in proper order, just the pressure in low pressure suction pressure district (31) is less than the pressure in intermediate pressure district (32) is less than the pressure in exhaust high-pressure district (33), middle exhaust hole (34) set up in intermediate pressure district (32) department.

3. The compressor of claim 2, wherein: the rotor is arranged in the rotor cavity (3), a tooth groove is formed in the peripheral side of the rotor, one end of the tooth groove is connected with the low-pressure suction pressure area (31), the other end of the tooth groove is connected with the exhaust high-pressure area (33), and the middle exhaust hole (34) is connected with the tooth groove in an inner connecting mode.

4. The compressor of claim 2, wherein: a one-way valve is arranged in the bypass channel (5), and the flow direction of the one-way valve is directed to the exhaust cavity (4) from the intermediate pressure area (32).

5. The compressor of claim 4, wherein: the check valve is a plunger type check valve or a door type check valve.

6. The compressor of claim 2, wherein: and a pressure control valve is arranged in the bypass channel (5), a first pressure inlet of the control valve is communicated with the intermediate pressure area (32), a second pressure inlet of the control valve is communicated with the exhaust cavity (4), and when the pressure of the intermediate pressure area (32) is greater than the pressure in the exhaust cavity (4), the pressure control valve controls the bypass channel (5) to be opened.

7. The compressor of claim 6, wherein: the pressure control valve comprises a piston (6), an avoidance groove is formed in the bypass channel (5), the piston (6) is arranged in the bypass channel (5), one side of the piston (6) forms the first pressure inlet, the other side of the piston forms the second pressure inlet, when the pressure of the first pressure inlet is larger than that of the second pressure inlet, the piston (6) slides into the avoidance groove, the first pressure inlet is communicated with the second pressure inlet, when the pressure of the first pressure inlet is smaller than or equal to that of the second pressure inlet, the piston (6) is separated from the avoidance groove, and the first pressure inlet and the second pressure inlet are disconnected.

8. The compressor of claim 7, wherein: the pressure control valve further comprises an elastic piece, the elastic piece is arranged in the avoidance groove, and when the piston (6) slides into the avoidance groove, the elastic piece is in a compression state.

9. The compressor of claim 8, wherein: the elastic piece is a spring.

10. The compressor of claim 2, wherein: the number of the middle exhaust holes (34) is multiple, all the middle exhaust holes (34) are distributed on the middle pressure area (32) along the direction from the low-pressure suction pressure area (31) to the exhaust high-pressure area (33), and a bypass channel (5) is formed between each middle exhaust hole (34) and the exhaust cavity (4).

11. An air conditioning system characterized by: comprising a compressor according to any one of claims 1 to 10.