CN111102191A

CN111102191A - Compressor, air conditioning system and control method

Info

Publication number: CN111102191A
Application number: CN201911167716.XA
Authority: CN
Inventors: 魏会军; 李立民; 曹贞文; 郭求和; 刘虹志
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-05-05
Anticipated expiration: 2039-11-25
Also published as: CN111102191B

Abstract

The invention provides a compressor, an air conditioning system and a control method, wherein the compressor comprises a static vortex disk and a movable vortex disk, wherein a liquid spraying channel is arranged inside the static vortex disk and can spray introduced liquid refrigerant into a compression cavity; the inside of the static vortex disc is also provided with an air injection channel which can inject the introduced gaseous refrigerant into an exhaust pipeline or a compression cavity of the compressor; still include the adapter, the adapter set up in quiet whirlpool dish outside, and including mutually independent and each other communicating liquid channel and gas passage, liquid channel can with quiet whirlpool dish on the hydrojet channel intercommunication gas passage can with quiet whirlpool dish is last jet-propelled passageway intercommunication. The invention can select to adopt air injection cooling or liquid injection cooling according to different operation conditions and different operation working conditions, is suitable for various different working conditions, improves the operation efficiency and reliability of the compressor, and increases the operation range of the compressor.

Description

Compressor, air conditioning system and control method

Technical Field

The invention belongs to the technical field of compressors, and particularly relates to a compressor, an air conditioning system and a control method.

Background

The compressor mainly comprises a shell, a compression mechanism, a supporting mechanism, a driving mechanism and a suction and discharge pipeline of working fluid. In operation, the volume of the compression chamber defined by the spiral wrap of the non-orbiting scroll member and the spiral wrap of the orbiting scroll member becomes progressively smaller, and the pressure of the refrigerant in the chamber is progressively increased, thereby drawing the refrigerant into the compression chamber via the working fluid suction pipe to be compressed and finally discharged from the discharge port at the center of the selected member, and discharging the refrigerant from the working fluid discharge pipe to the compressor to the external refrigeration cycle circuit.

For a low-pressure cavity compressor, the main application of the low-pressure cavity compressor is in refrigeration and heat pump units. When the compressor is in a bad operation condition and the working condition pressure ratio is large, the exhaust temperature of the compressor generally rises, and the condition is more remarkable when the unit operates in winter. The high exhaust temperature can reduce the viscosity of lubricating oil in the compressor, so that the compression chamber is difficult to lubricate and seal, the running efficiency of the compressor is reduced, and the running reliability of the compressor is influenced.

In order to control the exhaust temperature during the operation of the compressor and improve the operation reliability of the compressor, a method of reducing the exhaust temperature of the compressor by providing a gas or liquid injection function on the compressor is generally adopted. However, when the operation condition is not severe enough, the liquid cannot be completely evaporated into gas by adopting the liquid spraying function, and the liquid refrigerant dilutes an oil film, so that the internal abrasion of the compressor is caused, and the service life is reduced; when the operation condition is too severe, the effect of reducing the exhaust temperature by adopting the air injection function is not obvious, the viscosity of lubricating oil in the compressor is reduced, the lubrication and the sealing of the compressor are influenced, and the operation efficiency and the reliability are reduced.

The invention discloses a jet and liquid spraying compressor and an air-conditioning system, which are researched and designed in the invention because a compressor (particularly a scroll compressor) in the prior art only has a single jet or liquid spraying function and cannot adapt to working conditions under different operating conditions (for example, the compressor cannot be suitable for a high-load working condition and a low-load working condition at the same time), so that the operating efficiency and reliability of the compressor are reduced, and the like.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the compressor (especially the scroll compressor) in the prior art has only a single air injection or liquid injection function and cannot adapt to the working conditions under different operating conditions, so as to provide a compressor, an air conditioning system and a control method.

The present invention provides a compressor, comprising:

the liquid spraying device comprises a fixed scroll and a movable scroll, wherein a liquid spraying channel is arranged in the fixed scroll, one end of the liquid spraying channel is positioned on the outer surface of the fixed scroll and can introduce liquid refrigerant outside the fixed scroll into the liquid spraying channel, and the other end of the liquid spraying channel extends to the inside of the fixed scroll and sprays the introduced liquid refrigerant into a compression cavity;

the inner part of the fixed scroll is also provided with an air injection channel, one end of the air injection channel is positioned at the outer surface of the fixed scroll and can introduce the gaseous refrigerant outside the fixed scroll into the air injection channel, and the other end of the air injection channel extends to the inner part of the fixed scroll and injects the introduced gaseous refrigerant into a compression cavity;

still include the adapter, the adapter set up in quiet whirlpool dish outside, and including mutual independence and communicating liquid channel and gas passage each other, liquid channel can with quiet whirlpool dish on the hydrojet passageway intercommunication gas passage can with quiet whirlpool dish is last jet-propelled passageway intercommunication.

Preferably, the first and second electrodes are formed of a metal,

a cutting plane is formed on the outer periphery of the fixed scroll disc, and one end of the liquid spraying channel is arranged at the cutting plane and extends towards the inside of the fixed scroll disc; one end of the gas injection passage is disposed at the tangential plane and extends toward the inside of the fixed scroll.

Preferably, the first and second electrodes are formed of a metal,

the cutting plane is provided with a first groove, the first groove is arranged at the position of the air injection channel, and the sectional area of the first groove is larger than that of the air injection channel, so that the air injection channel is accommodated in the first groove.

Preferably, the first and second electrodes are formed of a metal,

the adapter for the shape of buckling structure, include with the first portion that meets of tangent plane and with the second portion that first portion is buckled and is connected:

the liquid channel comprises a first transverse through hole and a middle through hole, the first transverse through hole is arranged on the first portion, the middle through hole is arranged on the second portion, the first transverse through hole extends in the first portion, the middle through hole extends in the second portion, one end of the first transverse through hole is communicated with the middle through hole, and the other end of the first transverse through hole is communicated with the liquid spraying channel on the fixed scroll;

the gas channel comprises a transverse groove arranged on the first portion, and a first axial through hole and a second transverse through hole which are arranged on the second portion, the transverse groove extends in the first portion, the first axial through hole and the second transverse through hole respectively extend in the second portion, the second transverse through hole, the first axial through hole and the transverse groove are sequentially communicated, and the transverse groove is communicated with the gas injection channel on the static scroll.

Preferably, the first and second electrodes are formed of a metal,

the first part is of a cylindrical structure, the middle through hole extends along the axial direction of the first part, and the first transverse through hole extends along the radial direction of the first part; the second transverse through hole extends in a radial direction of the first portion, the first axial through hole extends in an axial direction of the first portion, and the transverse groove extends in the radial direction of the first portion.

Preferably, the first and second electrodes are formed of a metal,

the first axial through hole is formed between the inner wall and the outer wall of the first portion and extends in the axial direction, the second transverse through hole and the transverse groove are respectively communicated with the first axial through hole at different axial positions of the first portion, and the second transverse through hole is also communicated with the middle through hole.

Preferably, the first and second electrodes are formed of a metal,

the first connecting rod is inserted into the middle through hole of the adapter, so that the second axial through hole is communicated with the first transverse through hole;

one end of the first connecting rod is provided with a first axial ring groove in an inner extending manner along the axial direction of the first connecting rod, the first axial ring groove is positioned on the radial outer side of the second axial through hole and positioned on the inner side of the outer wall of the first connecting rod, a third transverse through hole is radially arranged on the outer wall of the first connecting rod, one end of the third transverse through hole is communicated with the first axial ring groove, and the other end of the third transverse through hole can be communicated with the second transverse through hole after the first connecting rod is inserted into the middle through hole of the adapter.

Preferably, the first and second electrodes are formed of a metal,

the compressor further comprises sealing rings, wherein sealing ring grooves are formed in the two axial sides of the third transverse through hole in the outer wall of the first connecting rod, and the sealing rings can be embedded into the sealing ring grooves respectively.

Preferably, the first and second electrodes are formed of a metal,

the connector comprises a first connecting rod and a second connecting rod, wherein the first connecting rod is arranged on one side of the first connecting rod, which deviates from the adapter along the axial direction, a first axial through hole is formed in the inner part of the first connecting rod in an extending manner along the axial direction of the first connecting rod, a first transverse through hole is formed in the outer wall of the first connecting rod along the radial direction, one end of the first axial through hole is communicated with the first transverse through hole, and the other end of the first axial through hole is communicated with the second axial through hole of the first connecting rod;

one end of the second connecting rod is provided with a second axial ring groove in an inner extending manner along the axial direction of the second connecting rod, the second axial ring groove is positioned on the radial outer side of the fourth axial through hole and positioned on the inner side of the outer wall of the second connecting rod, a fifth transverse through hole is radially formed in the outer wall of the second connecting rod, and one end of the second axial ring groove is communicated with the fifth transverse through hole and the other end of the second axial ring groove is communicated with the first axial ring groove of the first connecting rod.

Preferably, the first and second electrodes are formed of a metal,

the part of the first connecting rod, which is opposite to the second connecting rod, is formed into a first flange bulge, the part of the second connecting rod, which is opposite to the first connecting rod, is formed into a second flange bulge, and the first flange bulge is in butt joint with the second flange bulge.

Preferably, the first and second electrodes are formed of a metal,

first flange bulge with still be provided with connecting rod between the second flange bulge and seal up, connecting rod seals up and is provided with first logical groove and first through-hole, first logical groove one end with first axial annular intercommunication, the other end with second axial annular intercommunication, first through-hole one end with second axial through-hole intercommunication, the other end with fourth axial through-hole intercommunication.

Preferably, the first and second electrodes are formed of a metal,

the fixed scroll disk and the movable scroll disk are arranged in the shell, one end of the first injection pipe is connected into the fourth transverse through hole of the second connecting rod, the other end of the first injection pipe penetrates out of the shell, one end of the second injection pipe is connected into the fifth transverse through hole of the second connecting rod, and the other end of the second injection pipe penetrates out of the shell; the shell is provided with a first spray pipe through hole allowing the first spray pipe to pass through, and the shell is also provided with a second spray pipe through hole allowing the second spray pipe to pass through.

Preferably, the first and second electrodes are formed of a metal,

the adapter sealing ring and the adapter pressing ring are overlapped and integrally arranged on the bottom end face of the adapter and allow the first connecting rod to penetrate through the adapter pressing ring and the adapter sealing ring.

Preferably, the first and second electrodes are formed of a metal,

the adapter with the quiet whirlpool dish cut and still be provided with sealed the pad between the plane, be provided with on the sealed pad with the second through-hole of hydrojet channel intercommunication and with the second through-groove of jet-propelled channel intercommunication.

The invention also provides an air conditioning system, which comprises a condenser, an evaporator and a first throttling device, and further comprises the compressor.

Preferably, the first and second electrodes are formed of a metal,

the condenser is communicated with the first throttling device, and the other end of the condenser is communicated with the first throttling device; a temperature sensor is arranged on an exhaust pipeline of the compressor;

the condenser is characterized by further comprising a branch pipeline, wherein the branch pipeline branches from the outlet of the condenser, a second throttling device is arranged on the branch pipeline, and the branch pipeline exchanges heat with the main pipeline in the economizer after passing through the second throttling device;

the liquid spraying device also comprises a liquid spraying pipeline, one end of the liquid spraying pipeline is communicated to the branch pipeline after passing through the economizer, the other end of the liquid spraying pipeline can be communicated to the liquid spraying channel, and a first control valve is arranged on the liquid spraying pipeline;

the economizer is characterized by further comprising an air injection pipeline, one end of the air injection pipeline is also communicated to the branch pipeline after heat exchange of the economizer, the other end of the air injection pipeline can be communicated to the air injection channel, and a second control valve is arranged on the air injection pipeline.

The invention also provides a control method of the air conditioning system, which uses the air conditioning system, and when the air conditioning system comprises the liquid injection pipeline and the air injection pipeline, the liquid injection pipeline or the air injection pipeline is selectively controlled to be opened according to the exhaust temperature of the compressor.

Preferably, the first and second electrodes are formed of a metal,

when being provided with first control valve on the spray line, when being provided with the second control valve on the jet-propelled pipeline:

when the exhaust temperature is detected to be higher than a safety range, controlling to open the first control valve and close the second control valve; and when the exhaust temperature is detected to be lower than a safety range, controlling to open the second control valve and close the first control valve.

Preferably, the first and second electrodes are formed of a metal,

when the exhaust temperature is detected to be higher than a safety range, controlling and adjusting the opening degree of the second throttling device to be increased; and when the exhaust temperature is detected to be lower than the safety range, controlling and adjusting the opening degree of the second throttling device to be reduced.

The compressor, the air conditioning system and the control method provided by the invention have the following beneficial effects:

according to the invention, the liquid spraying channel is arranged in the fixed scroll disk, so that liquid refrigerant can be guided from the outside of the fixed scroll disk to enter the liquid spraying channel and sprayed into the compression cavity, and liquid spraying cooling is carried out when the exhaust temperature of the compressor is too high; the gas channel and the liquid channel arranged on the adapter are respectively communicated with the gas channel and the liquid channel to form two mutually independent channels for gas injection and liquid injection which are both arranged on the same tangential plane of the static scroll disk, the corresponding channels are communicated according to requirements, the exhaust temperature is higher when the working condition load is higher, and the gas injection cooling is adopted for exhaust cooling at the moment, exhaust temperature is too high when operating mode load is too high, adopts the hydrojet cooling in order to strengthen exhaust cooling effect this moment to can be suitable for multiple different operating modes, can adjust compressor running mode according to different operating condition, promote compressor operating efficiency and reliability, increase the operating range of compressor.

Drawings

Fig. 1 is a schematic view of the overall structure of a compressor according to a first embodiment of the present invention;

FIG. 1a is a partially enlarged structural view of a portion P in FIG. 1;

FIG. 2 is a schematic view of a fixed scroll according to a first embodiment of the present invention;

FIG. 3 is a schematic sectional view of an enthalpy-increasing channel of a fixed scroll according to a first embodiment of the present invention;

fig. 4a is a schematic perspective view of an adapter according to a first view angle in the first embodiment of the present invention;

fig. 4b is a schematic perspective view of a second view angle of the adapter according to the first embodiment of the present invention;

fig. 5 is a schematic structural diagram of an adapter clamp ring according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of an adapter sealing ring according to a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of an adapter gasket according to a first embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a second connecting rod according to a first embodiment of the present invention;

fig. 9 is a schematic perspective view illustrating a first connecting rod of the first embodiment of the invention when the first connecting rod is upright;

FIG. 10 is a schematic perspective view illustrating a tilting first connecting rod according to a first embodiment of the present invention;

FIG. 11 is a schematic view of a sealing ring structure of a connecting rod according to a first embodiment of the present invention;

FIG. 12 is a schematic view of a gasket structure of a connecting rod according to a first embodiment of the present invention;

fig. 13 is a schematic structural diagram of a housing according to a first embodiment of the invention;

FIG. 14 is a schematic view of a spray pipe structure according to a first embodiment of the present invention;

FIG. 15 is a schematic view of a screw structure according to a first embodiment of the present invention;

FIG. 16 is an external view of the spray assembly and the stationary plate according to the first embodiment of the present invention;

FIG. 17 is a control logic diagram according to a first embodiment of the present invention;

fig. 18 is a schematic connection diagram of an air conditioning system according to a first embodiment of the invention.

The reference numbers in the figures denote:

1. an upper cover; 2. a partition plate; 3. a cross slip ring; 4. a support plate; 5. a housing; 501a, a first spray pipe through hole; 501b, a second spray pipe through hole; 6. a primary counterbalance; 7. an upper bracket; 8. a motor; 9. a motor fixing frame; 10. a main housing; 11. a lower support ring; 12. a lower cover; 13. a lower bracket; 14. a lower bearing; 15. An air suction port; 16. a crankshaft; 17. a rotor; 18. an eccentric sleeve; 19. a movable scroll pan; 20. a static scroll pan; 21a, a first injection pipe; 21b, a second injection pipe; 2101. an injection hole; 22. a second connecting rod; 23. a connecting rod sealing gasket; 24. a first connecting rod; 25. a screw; 26. a clamp ring of the adapter; 27. an adapter sealing ring; 28. a connecting rod sealing ring; 29. an adapter; 30. a gasket; 31. a sealing cover; 32. an exhaust pipe; 33. a check valve;

01. a compressor; 02. a temperature sensor; 03. a condenser; 04. an economizer; 05. a second throttle device (electronic expansion valve 1); 06. a first throttle device (electronic expansion valve 2); 07. an evaporator; 08. A first control valve; 09. a second control valve; 2000. cutting a plane; A. a main pipeline; B. a branch line; C. a liquid spray line; D. an air jet line; 100. an exhaust chamber;

2001. a first threaded hole; 2002. a liquid ejection channel; 2003. a first groove; 2004. an air injection passage; 2901. Screw avoiding holes; 2902. a second threaded hole; 2903. a middle through hole; 2904. a first transverse through hole; 2905. a first axial through hole; 2906. a second lateral through hole; 2907. a transverse groove; 2401. a seal ring groove; 2402. a second axial through hole; 2403. a third lateral through hole; 2404. a first flange projection; 2405. a fifth screw avoiding hole; 2406. a first axial ring groove; 2201. a fifth lateral through hole; 2202. a fourth lateral through hole; 2203. a second axial ring groove; 2204. a fourth axial through hole; 2206. a second flange projection; 2301. a sixth screw relief hole; 2302. a first through groove; 2303. a first through hole; 3001. a fourth screw relief hole; 3002. a second through groove; 3003. a second through hole; 2601. a second screw relief hole; 2602. A fifth axial through hole; 2701. a third screw relief hole; 2702. a sixth axial through hole.

Detailed Description

Example one

As shown in fig. 1 to 16, the present invention provides a compressor (preferably a scroll compressor) mainly composed of a motor 8, an upper bracket 7, a lower bracket 13, a fixed scroll 20, a movable scroll 19, an oldham ring 3, a crankshaft 16, etc. The motor 8 is fixed on the main shell 10 through a motor fixing frame 9, and the upper bracket 7 is fixed on the main shell 10 through interference fit and axial thrust. The movable scroll 19 and the fixed scroll 20 are oppositely arranged on the upper bracket 7 with a phase angle difference of 180 degrees, the movable scroll 19 moves under the driving of the crankshaft 16 and is engaged with the fixed scroll 20 to form a series of crescent closed cavities which are mutually isolated and continuously changed in volume. The sealing cover 31 is installed on the back of the fixed scroll 20, and the sealing cover 31 can axially float to form a sealed exhaust passage with the partition plate 2 during the operation of the compressor. It should be noted that the fixed scroll 20 has axial flexibility, i.e. can axially float, but in normal operation, the fixed scroll 20 is tightly pressed on the movable scroll 19 by the axial force of the gas in the middle pressure cavity formed by the sealing cover 31 and the back surface of the fixed scroll 20, the movable scroll 19 is tightly pressed on the supporting plate 4 on the upper bracket 7 due to the action of the high-pressure gas in the compression cavity and the acting force of the fixed scroll 20, and the supporting plate 4 is fixed on the upper bracket 7 through screws. The partition plate 2 and the upper cover 1 are fixed to the main casing 10 by welding, and the partition plate 2 and the upper cover 1 form a high pressure exhaust chamber 100.

When the compressor runs, the motor 8 drives the crankshaft 16 to rotate, the crank section of the crankshaft 16 is provided with the eccentric sleeve 18 with radial flexibility, the eccentric sleeve 18 drives the movable scroll disk 19 to move, and the movable scroll disk 19 makes translational motion around the center of the crankshaft with a fixed radius under the limitation of autorotation prevention of the cross slip ring 3. Refrigerant entering from the outside of the compressor is sucked into a crescent suction chamber formed by the orbiting scroll 19 and the fixed scroll 20, is compressed, enters a high pressure chamber formed by the upper cover 1 and the partition plate 2 through the fixed scroll 20, the discharge pipe 32 and the check valve 33, and is discharged through the discharge pipe 32.

A liquid spray channel 2002 is provided inside the fixed scroll 20, one end of the liquid spray channel 2002 is located at the outer surface of the fixed scroll 20, and is capable of introducing liquid refrigerant outside the fixed scroll 20 into the liquid spray channel 2002, and the other end of the liquid spray channel 2002 extends to the inside of the fixed scroll 20 and sprays the introduced liquid refrigerant into a compression cavity;

an air injection passage 2004 is further provided inside the fixed scroll 20, one end of the air injection passage 2004 being located at an outer surface of the fixed scroll 20, being capable of introducing a gaseous refrigerant outside the fixed scroll 20 into the air injection passage 2004, and the other end of the air injection passage 2004 extending to the inside of the fixed scroll 20 and injecting the introduced gaseous refrigerant into a compression chamber;

still include adapter 29, adapter 29 set up in static vortex dish 20 is outside, and include mutually independent and each other not communicating liquid passage and gas passage, liquid passage can with on the static vortex dish 20 hydrojet channel 2002 intercommunication, gas passage can with on the static vortex dish 20 jet-propelled passageway 2004 communicates.

According to the invention, the liquid spraying channel is arranged in the fixed scroll disk, so that liquid refrigerant can be guided from the outside of the fixed scroll disk to enter the liquid spraying channel and sprayed into the compression cavity, and liquid spraying cooling is carried out when the exhaust temperature of the compressor is too high; the gas channel and the liquid channel arranged on the adapter are respectively communicated with the gas injection channel and the liquid injection channel to form two mutually independent channels for gas injection and liquid injection which are both arranged on the same tangent plane of the static scroll, and the two independent channels can share one set of gas injection system when respectively supplying liquid and gas, so that the structure is more compact; corresponding passageway is put through as required, and exhaust temperature is higher when operating mode load is on the high side, adopts jet-propelled cooling in order to carry out exhaust cooling this moment, and exhaust temperature is too high when operating mode load is too high, adopts the hydrojet cooling in order to strengthen exhaust cooling effect this moment to can be suitable for multiple different operating modes, can adjust compressor operation mode according to different operating condition, promote compressor operating efficiency and reliability, increase the operating range of compressor.

Preferably, the first and second electrodes are formed of a metal,

a tangential plane 2000 is formed on the outer circumference of the fixed scroll 20, and one end of the liquid spray channel 2002 is disposed at the tangential plane 2000 and extends toward the inside of the fixed scroll 20; one end of the gas injection passage 2004 is disposed at the tangential plane 2000 and extends toward the inside of the fixed scroll 20; it is further preferable that an end of the liquid ejection passage 2002 provided at the tangential plane 2000 is located at the same height as an end of the gas ejection passage 2004 provided at the tangential plane 2000.

Can provide the condition for seting up jet channel and hydrojet channel through set up the mode of cutting the plane on quiet whirlpool dish, and be favorable to and accomplish sealed assembly between the adapter, and all open jet channel and hydrojet channel and locate on cutting the plane, can effectively utilize the structure of quiet whirlpool dish, make connection structure occupation space such as adapter do littleer, can share one set of jet system when having two independent passageways to supply liquid respectively with the air feed, the realization is according to different work condition (the height of exhaust temperature) come the selectivity open jet cooling (exhaust temperature is lower) or hydrojet cooling (exhaust temperature is higher), realize reducing exhaust temperature's intelligent tonifying qi control.

Preferably, the first and second electrodes are formed of a metal,

the cutting plane 2000 is formed with a first groove 2003, the first groove 2003 is disposed at the position of the air injection passage 2004, and the longitudinal cross-sectional area of the first groove 2003 is larger than that of the air injection passage 2004, so that the air injection passage 2004 is accommodated in the first groove 2003, and the first groove 2003 is in matching connection with the transverse groove 2907 of the adapter 29. The first groove is formed, so that the first groove can be conveniently connected with the transverse groove on the adapter in a shape matching mode, the assembly is convenient, and the fool-proof effect is good.

Preferably, the first and second electrodes are formed of a metal,

the adapter 29 is a bending structure, and includes a first portion connected to the cutting plane 2000 and a second portion connected to the first portion in a bending manner:

the liquid channel includes a first lateral through hole 2904 provided on the first portion and an intermediate through hole 2903 provided on the second portion, the first lateral through hole 2904 extends inside the first portion, the intermediate through hole 2903 extends inside the second portion, and one end of the first lateral through hole 2904 communicates with the intermediate through hole 2903 and the other end communicates with the liquid spray channel 2002 on the fixed scroll 20;

the gas channel includes a lateral groove 2907 provided on the first portion and first and second axial through

holes

2905 and 2906 provided on the second portion, the lateral groove 2907 extends inside the first portion, the first and second axial through

holes

2905 and 2906 extend inside the second portion, respectively, and the second and first axial through

holes

2906 and 2905 communicate with the lateral groove 2907 in sequence, and the lateral groove 2907 communicates with the gas spouting channel 2004 on the fixed scroll 20.

The adapter is in a preferred structural form, namely a preferred structural form of the liquid channel and the gas channel, the liquid spraying channel or the gas spraying channel arranged on the static scroll disk can be effectively communicated with the liquid channel or the gas channel through the arrangement of the adapter, the adapter is jointed with the tangent plane, and conditions are provided for supplementing liquid refrigerant or gas refrigerant with lower temperature into the liquid spraying channel or the gas spraying channel to exhaust and cool; the liquid channel and the gas channel are mutually independent and independently supply air or supplement liquid; the design of the bending structure enables the pipeline to be convenient to walk and lead the refrigerant into the shell from the outside of the shell through the pipeline, and then the refrigerant enters the inside of the static scroll.

The liquid channel comprises a first transverse through hole and a middle through hole, so that refrigerant liquid can enter the first transverse through hole from the middle through hole upwards and then enter the liquid spraying channel of the static vortex disc for liquid supplement; the gas channel includes a transverse groove 2907 and a first axial through hole 2905 and a second transverse through hole 2906 provided on the second portion, so that the refrigerant gas can enter the transverse groove through the first axial through hole and then enter the gas injection channel for gas supplement through the second transverse through hole.

Preferably, the first and second electrodes are formed of a metal,

the first portion has a cylindrical structure, and the intermediate through hole 2903 extends in an axial direction of the first portion, and the first lateral through hole 2904 extends in a radial direction of the first portion; the second transverse throughbore 2906 extends in a radial direction of the first portion, the first axial throughbore 2905 extends in an axial direction of the first portion, and the transverse groove 2907 extends in a radial direction of the first portion.

This is the preferred specific structure form of the first part and the middle through hole, the second transverse through hole and the first axial through hole in the first part, and through the cylindrical structure form, the inner part can be formed into the middle through hole 2903, which provides conditions for accommodating the refrigerant liquid and the first connecting rod; and the preferred configuration of the second portion and the first lateral through-hole 2904, lateral groove 2907.

Preferably, the first and second electrodes are formed of a metal,

the first axial throughbore 2905 opens between the inner and outer walls of the first portion and extends axially, the second transverse throughbore 2906 and the transverse groove 2907 communicate with the first axial throughbore 2905 at different axial locations of the first portion, respectively, and the second transverse throughbore 2906 also communicates with the intermediate throughbore 2903. This is the preferred configuration of the present invention between the first axial through hole, the second transverse through hole and the transverse groove, and since the second transverse through hole is not in the same horizontal plane as the first transverse through hole 2904 (transverse groove 2907), the guiding effect of the first axial through hole causes the refrigerant gas in the second transverse through hole to enter the first axial through hole, then enter the transverse groove 2907, and finally enter the gas injection channel, thus completing the gas injection cooling effect (the second transverse through hole sucks gas from the middle channel).

As shown in fig. 7, preferably,

a first connecting rod 24, one end of the first connecting rod 24 being provided with a second axial through hole 2402 extending inside along the axial direction thereof, and the first connecting rod 24 being insertable into the intermediate through hole 2903 of the adapter 29 such that the second axial through hole 2402 and the first transverse through hole 2904 communicate;

one end of the first connecting rod 24 is provided with a first axial ring groove 2406 extending inside along the axial direction thereof, the first axial ring groove 2406 is located at the radial outer side of the second axial through hole 2402 and at the inner side of the outer wall of the first connecting rod 24, and a third transverse through hole 2403 is radially opened at the outer wall of the first connecting rod 24, one end of the third transverse through hole 2403 is communicated with the first axial ring groove 2406, and the other end can be communicated with the second transverse through hole 2906 after the first connecting rod 24 is inserted into the middle through hole 2903 of the adapter 29.

This is the preferred structure form of the first connecting rod of the present invention, the coolant liquid can be introduced from the outside through the second axial through hole 2402 provided inside, and after the first connecting rod is inserted into the middle through hole of the adapter, the liquid coolant is guided through the first transverse through hole 2904 communicating with the second axial through hole 2402, so as to complete the effective fluid replacement; the first axial ring groove 2406 arranged in the first connecting rod can introduce refrigerant gas from the outside, and then the refrigerant gas is guided into the second transverse through hole 2906 of the adapter through the third transverse through hole 2403 communicated with the first axial ring groove 2406 after the first connecting rod is inserted into the middle through hole of the adapter, so that the gas refrigerant is guided, and the effective gas supplementing effect is completed.

Preferably, the first and second electrodes are formed of a metal,

and sealing ring grooves 2401 are formed in the outer wall of the first connecting rod 24 on two axial sides of the third transverse through hole 2403, the compressor further comprises a connecting rod sealing ring 28, and the connecting rod sealing ring 28 can be embedded into the sealing ring grooves 2401 respectively. Through two sealing ring grooves and the sealing rings arranged on the first connecting rod, the sealing rings on two sides of the axial direction can form a small sealing cavity for the third transverse through hole, so that the sealing rings are communicated with the second transverse through hole on the adapter and are not communicated with the liquid channel, and an effective sealing effect is achieved.

As shown in fig. 8, preferably,

the connecting device further comprises a second connecting rod 22, the second connecting rod 22 is arranged on one side of the first connecting rod 24, which deviates from the adapter 29 along the axial direction, a fourth axial through hole 2204 is formed in one end of the second connecting rod 22 in an axially extending manner, a fourth transverse through hole 2202 is formed in the outer wall of the second connecting rod 22 along the radial direction, one end of the fourth axial through hole 2204 is communicated with the fourth transverse through hole 2202, and the other end of the fourth axial through hole 2204 is communicated with the second axial through hole 2402 of the first connecting rod 24;

a second axial ring groove 2203 is formed in one end of the second connecting rod 22 in an axially extending manner, the second axial ring groove 2203 is located on the radial outer side of the fourth axial through hole 2204 and located on the inner side of the outer wall of the second connecting rod 22, a fifth transverse through hole 2201 is radially formed in the outer wall of the second connecting rod 22, one end of the second axial ring groove 2203 is communicated with the fifth transverse through hole 2201, the other end of the second axial ring groove 2203 is communicated with the first axial ring groove 2406 of the first connecting rod 24, and the fifth transverse through hole 2201 and the fourth transverse through hole 2202 are located at different positions in the axial direction of the second connecting rod 22.

This is a further preferred structural form of the present invention, and through the structure of the second connecting rod, one side of the second connecting rod can be matched with the first connecting rod, and the other side can be communicated with the outside of the compressor housing, and through a fourth transverse through hole 2202 arranged inside the second connecting rod, refrigerant liquid can be introduced from the outside, and then the refrigerant is introduced into the second axial through hole 2402 of the first connecting rod through a fourth axial through hole 2204 of the second connecting rod, so as to guide the liquid refrigerant, thereby completing effective liquid supplement; refrigerant gas can be introduced from the outside through a fifth transverse through hole 2201 formed in the second connecting rod, and then the gas refrigerant is introduced into the first axial ring groove 2406 of the first connecting rod through the second axial ring groove 2203, so that the gas refrigerant is guided, and the effective gas supplementing effect is achieved.

Preferably, the first and second electrodes are formed of a metal,

a portion of the first connecting rod 24 opposite to the second connecting rod 22 is formed as a first flange protrusion 2404, a portion of the second connecting rod 22 opposite to the first connecting rod 24 is formed as a second flange protrusion 2206, and the first flange protrusion 2404 is in butt joint with the second flange protrusion 2206. Can make two connecting rods can meet through the laminating of flange bulge through first flange bulge and second flange bulge for effective connection between the increase of contact surface, two connecting pipes of assurance, and the flange bulge does not influence the respective communicating action of fluid passage.

Preferably, the first and second electrodes are formed of a metal,

first flange bulge 2404 with still be provided with connecting rod sealed pad 23 between the second flange bulge 2206, connecting rod sealed pad 23 is provided with first logical groove 2302 and first through-hole 2303, first logical groove 2302 one end with first axial annular groove 2406 intercommunication, the other end with second axial annular groove 2203 intercommunication, first through-hole 2303 one end with second axial through-hole 2402 intercommunication, the other end with fourth axial through-hole 2204 intercommunication. The position between two flange bulges can be effectively sealed through the arrangement of the connecting rod sealing gasket, and the connecting rod sealing gasket is provided with a through groove which can enable the sealing ring grooves to be communicated and a through hole structure which enables the axial through hole to be communicated.

Preferably, the first and second electrodes are formed of a metal,

the device further comprises a shell 5, a first injection pipe 21a and a second injection pipe 21b, wherein the fixed scroll 20 and the movable scroll 19 are arranged in the shell 5, one end of the first injection pipe 21a is connected to the fourth transverse through hole 2202 of the second connecting rod 22, the other end of the first injection pipe penetrates through the outside of the shell 5, one end of the second injection pipe 21b is connected to the fifth transverse through hole 2201 of the second connecting rod 22, and the other end of the second injection pipe 21b penetrates through the outside of the shell 5; the housing 5 is provided with a first nozzle through hole 501a for allowing the first injection pipe 21a to pass therethrough, and the housing 5 is further provided with a second nozzle through hole 501b for allowing the second injection pipe 21b to pass therethrough. The first injection pipe can be communicated with the outside of the shell, and the shell is communicated with the second connecting rod, so that liquid refrigerant is effectively guided into the shell from the outside and then enters a liquid spraying channel of the static scroll disk, and liquid spraying cooling is finished; the second injection pipe can be communicated with the outside of the shell, and the shell is communicated with the second connecting rod, so that gaseous refrigerant is effectively guided into the shell from the outside and then enters an air injection channel of the static scroll disk, and air injection cooling is completed.

As shown in fig. 5-6, preferably,

an adapter compression ring 26 (preferably a steel ring) and an adapter sealing ring 27 are also included, the adapter compression ring 26 and the adapter sealing ring 27 being stacked and integrally provided on a bottom end face of the adapter 29 and allowing the first connecting rod 24 to pass therethrough. Can form effectual rigid coupling and sealed to the lower terminal surface of rotary joint through adapter clamp ring and adapter sealing ring, and effectively guarantee the fastening connection between head rod and the adapter.

As shown in fig. 7, preferably,

a sealing gasket 30 is further arranged between the adapter 29 and the tangent plane 2000 of the fixed scroll 20, a second through hole 3003 communicated with the liquid spraying channel 2002 and a second through groove 3002 communicated with the air spraying channel 2004 are arranged on the sealing gasket 30, and the shape of the second through groove is matched with that of the groove on the fixed scroll. The sealing gasket structure can form effective sealing connection between the tangent plane of the static vortex disc and the adapter.

As shown in fig. 2 and 3, a cutting plane 2000 is formed on the fixed scroll 20, and a first threaded hole 2001, a liquid spraying channel 2002, a first groove 2003 and a gas spraying channel 2004 are formed on the cutting plane 2000; as shown in fig. 4a-4b, the adapter 29 is provided with a screw avoiding hole 2901, four second threaded holes 2902, a middle through hole 2903, a first transverse through hole 2904 communicated with the middle through hole 2903, a first axial through hole 2905, a second transverse through hole 2906, and a transverse groove 2907, wherein the first axial through hole 2905 is communicated with the second transverse through hole 2906 and the transverse groove 2907 (after the adapter 29 is assembled with the first connecting rod 24, the second transverse through hole 2906 is located between two connecting rod sealing rings 28 of the first connecting rod 24, so that the gaseous refrigerant guided by the first connecting rod 24 can enter the transverse groove 2907 without leakage), and the middle through hole 2903 is communicated with the first transverse through hole 2904; as shown in fig. 5, a fifth axial through hole 2602 and four (or a plurality of) uniformly distributed second screw avoiding holes 2601 are formed in the adaptor compression ring 26; as shown in fig. 6, a sixth axial through hole 2702 and four (or a plurality of) uniformly distributed third screw avoiding holes 2701 are formed in the adapter sealing ring 27; as shown in fig. 7, the sealing pad 30 between the fixed scroll 20 and the adapter 29 is provided with two fourth screw avoiding holes 3001, second through grooves 3002 (the shape of which is the same as that of the first groove 2003 on the fixed scroll 20 and the transverse groove 2907 on the adapter 29) and second through holes 3003 which are symmetrically arranged; as shown in fig. 8, the second connecting rod 22 is provided with a fifth transverse through hole 2201, a fourth transverse through hole 2202, a second axial ring groove 2203 communicated with the fourth transverse through hole 2202, a fourth axial through hole 2204, and four or a plurality of threaded holes uniformly distributed on the plane of the second flange protrusion 2206; as shown in fig. 9 and 10, the first connecting rod 24 is provided with two sealing ring grooves 2401, a second axial through hole 2402, a third transverse through hole 2403, four or more fifth screw avoiding holes 2405 formed in the first flange protruding portion 2404, and a first axial ring groove 2406 which can be communicated with the second axial ring groove 2203 of the second connecting rod 22 during assembly, and the first axial ring groove 2406 is communicated with the third transverse through hole 2403; as shown in fig. 11, the connecting rod sealing ring 28 which can be inserted into two sealing ring grooves 2401 formed on the first connecting rod 24 is annular; as shown in fig. 12, four (or several) uniformly arranged sixth screw avoiding holes 2301, four (or several) uniformly arranged first through grooves 2302 and first through holes 2303 are formed on the connecting rod sealing gasket 23; as shown in fig. 13, two avoidance holes (a first nozzle through hole 501a and a second nozzle through hole 501b) for spraying copper pipes are formed in the housing 5; as shown in fig. 14, the injection copper pipe (the first injection pipe 21a and the second injection pipe 21b) is provided with an injection hole 2101; the screws used for assembly are shown in fig. 15; FIG. 16 is an external view of the injection assembly assembled with the fixed scroll; fig. 17 shows a logic diagram of refrigerant injection control; fig. 18 is a schematic diagram of system connection.

During assembly: the fixed scroll 20, the sealing gasket 30 and the adapter 29 are fixed together by screws, meanwhile, a second through hole 3003 on the sealing gasket 30, a liquid spraying channel 2002 on the fixed scroll 20 and a first transverse through hole 2904 on the adapter 29 are matched together, a second through groove 3002 (groove-shaped through hole), a first groove 2003 on the fixed scroll 20 and a transverse groove 2907 on the adapter 29 are matched together, and the two channels are mutually independent due to the existence of the sealing gasket 30; the copper pipes (the first injection pipe 21a and the second injection pipe 21b) are connected together with the second connection rod 22 by welding; after the connecting rod sealing gasket 23 is placed between the second connecting rod 22 and the first connecting rod 24, the two connecting rod sealing gaskets 23 are fastened together through screws, at this time, a second axial ring groove 2203 on the second connecting rod 22 is communicated with a first axial ring groove 2406 on the first connecting rod 24, a fourth axial through hole 2204 on the second connecting rod 22 is communicated with a second axial through hole 2402 on the first connecting rod 24, and the two channels are independent of each other due to the existence of the connecting rod sealing gasket 23; the adapter 29, the adapter sealing ring 27 and the adapter compression ring 26 are fixed together by screws, and at this time, under the sealing action of the adapter sealing ring 27, the first axial through hole 2905, the second transverse through hole 2906 and the transverse groove 2907 on the adapter 29 are communicated; after the two sealing ring grooves 2401 formed on the first connecting rod 24 are embedded with the connecting rod sealing ring 28, the two sealing ring grooves are inserted into the middle through hole 2903 on the adapter 29, and meanwhile, the second transverse through hole 2906 on the adapter 29 is always positioned in a sealing cavity formed after the connecting rod sealing ring 28 is embedded in the sealing ring grooves 2401.

After the assembly is completed, the gaseous refrigerant can be injected into the middle pressure cavity of the compressor through the second through groove 3002 on the sealing gasket 30, the first groove 2003 on the fixed scroll 20 and the air injection channel 2004 after passing through the copper pipe (the second injection pipe 21b), the second axial ring groove 2203 on the second connecting rod 22, the first through groove 2302 on the connecting rod sealing gasket 23, the first axial ring groove 2406 on the first connecting rod 24, the third transverse through hole 2403 on the first connecting rod 24, the first axial through hole 2905 on the adapter 29, the second transverse through hole 2906 and the transverse groove 2907; the liquid refrigerant can be injected into the compressor medium pressure cavity through the second through hole 3003 on the sealing gasket 30 and the liquid injection channel 2002 on the fixed scroll 20 after passing through the copper pipe (the first injection pipe 21a), the fifth transverse through hole 2201 on the second connecting rod 22, the fourth axial through hole 2204, the first through hole 2303 on the connecting rod sealing gasket 23, the second axial through hole 2402 on the first connecting rod 24, the middle through hole 2903 on the adapter 29 and the first transverse through hole 2904.

The invention also provides an air conditioning system comprising a condenser 03, an evaporator 07 and a first throttling device 06, and further comprising a compressor as described in any one of the preceding claims. The invention can select to adopt jet cooling or spray cooling according to different running conditions and different running working conditions, effectively increases the working condition application range of the compressor and the air conditioning system, has higher exhaust temperature when the working condition load is higher, adopts jet cooling to carry out exhaust cooling and cooling at the moment, has overhigh exhaust temperature when the working condition load is overhigh, and adopts spray cooling to enhance the exhaust cooling and cooling effect at the moment, thereby being suitable for various different working conditions, adjusting the running mode of the compressor according to different running working conditions, improving the running efficiency and reliability of the compressor and increasing the running range of the compressor.

Preferably, the first and second electrodes are formed of a metal,

the condenser comprises a main pipeline A, wherein one end of the main pipeline A is communicated with the condenser 03, the other end of the main pipeline A is communicated with the first throttling device 06, and an economizer 04 is further arranged on the main pipeline A; a temperature sensor 02 is arranged on an exhaust pipeline of the compressor;

the economizer comprises a condenser 03 and is characterized by further comprising a branch pipeline B, wherein the branch pipeline B branches from the outlet of the condenser 03, a second throttling device 05 is arranged on the branch pipeline B, and the branch pipeline B exchanges heat with the main pipeline A in the economizer 04 after passing through the second throttling device 05;

the spray device further comprises a spray pipeline C, one end of the spray pipeline B is communicated to the branch pipeline B after passing through the economizer 04, the other end of the spray pipeline B can be communicated to the spray channel 2002, and a second control valve 09 is arranged on the spray pipeline C;

the economizer further comprises an air injection pipeline D, one end of the air injection pipeline D is also communicated to the branch pipeline B after heat exchange of the economizer 04, the other end of the air injection pipeline D can be communicated to the air injection channel 2004, and a first control valve 08 is arranged on the air injection pipeline D.

The liquid refrigerant can be introduced from the branch pipeline of the air conditioning system through the arrangement of the liquid spraying pipeline and then enters the static scroll disk through the liquid spraying channel to complete the spraying of the liquid refrigerant, and the exhaust gas of the compressor is cooled. The second throttling device can effectively perform throttling and pressure reducing effects on the refrigerant introduced into the main pipeline, so that the refrigerant is still liquid due to phase change into gas or throttling control, conditions are provided for entering the gas injection pipeline for gas injection or entering the liquid injection pipeline for liquid injection, the refrigerant in the gas injection pipeline can be further heated by the refrigerant in the main pipeline through the economizer, the generation amount of the gas refrigerant is increased, and the exhaust cooling effect is improved.

The invention also provides a control method of the air conditioning system, which uses the air conditioning system, and selectively controls the opening of the liquid injection pipeline C or the opening of the gas injection pipeline D according to the exhaust temperature of the compressor when the air conditioning system comprises the liquid injection pipeline C and the gas injection pipeline D. The control method of the air conditioning system can select and control to adopt jet cooling or spray cooling according to different running conditions and different running working conditions, effectively increases the working condition application range of the compressor and the air conditioning system, has higher exhaust temperature when the working condition load is higher, adopts jet cooling to perform exhaust cooling and cooling at the moment, has overhigh exhaust temperature when the working condition load is overhigh, and adopts spray cooling to enhance the exhaust cooling and cooling effect at the moment, thereby being capable of being suitable for various different working conditions, adjusting the running mode of the compressor according to different running working conditions, improving the running efficiency and reliability of the compressor, and increasing the running range of the compressor.

Preferably, the first and second electrodes are formed of a metal,

when a second control valve 09 is arranged on the liquid injection pipeline C and a first control valve 08 is arranged on the gas injection pipeline D:

when the exhaust temperature is detected to be higher than a safety range, controlling to open the second control valve 09 and close the first control valve 08; when the exhaust temperature is detected to be lower than the safety range, the first control valve 08 is controlled to be opened, and the second control valve 09 is controlled to be closed.

The first control valve and the second control valve can control the liquid spraying cooling or the air spraying cooling according to the actual exhaust temperature, so that the effect of cooling by adopting different sprayed refrigerants according to different working conditions (loads) is realized, the exhaust temperature can be effectively reduced, and the performance and the applicability of the compressor and the air conditioning system are improved.

Preferably, the first and second electrodes are formed of a metal,

when the exhaust temperature is detected to be higher than a safety range, controlling and adjusting the opening degree of the second throttling device 05 to be increased; when the exhaust temperature is detected to be lower than the safety range, the opening degree of the second throttling device 05 is controlled to be reduced.

The control method is a further preferable control method (through the first or second control valve) of the control method, namely when the exhaust temperature is higher than the safety range, the exhaust temperature cannot be effectively reduced by adopting air injection, and a liquid injection cooling mode is adopted at the time, the opening degree of the second throttling device is adjusted to be large, so that the throttling process is as small as possible or not, and the refrigerant flowing out of the second throttling device can be in a liquid state as much as possible; when the exhaust temperature is lower than the safety range, the exhaust temperature can be effectively reduced by adopting air injection, and the opening degree of the second throttling device is reduced by adopting an air injection cooling mode, so that the throttling process is as large as possible, and the refrigerant coming out from the second throttling device can be in a gaseous state as far as possible.

As shown in fig. 18, the specific combination method and control logic with the system are: when the system normally operates, the liquid spraying/air injection control plate controls the second control valve 09 (preferably an electromagnetic valve) to be closed, the first control valve 08 (preferably an electromagnetic valve) to be opened, the second throttling device 05 operates according to normal logic, at the moment, the second throttling device 05 is led out from the condenser 03, and the liquid refrigerant throttled by the second throttling device 05 is subjected to heat exchange in the economizer 04 to become a gas state and then is injected into the middle compression cavity through the air injection channel of the compressor; when the exhaust temperature collected by the temperature sensor 02 is higher than a safety value (generally set at any value between 115 ℃ and 130 ℃), the liquid spraying/air injection control plate controls the second control valve 09 to be opened, the first control valve 08 is closed, the second throttling device 05 is opened to the maximum (100%) opening degree, at the moment, the refrigerant is led out of the condenser 03, the refrigerant passing through the second throttling device 05 is still in a liquid state, and the liquid refrigerant passes through the second control valve 09 and then is sprayed into the intermediate compression cavity through the liquid spraying channel of the compressor so as to further reduce the exhaust temperature of the compressor and expand the operating range of the compressor.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, 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 invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A compressor, characterized by: the method comprises the following steps:

a fixed scroll (20) and a movable scroll (19), wherein a liquid spraying channel (2002) is arranged in the fixed scroll (20), one end of the liquid spraying channel (2002) is positioned at the outer surface of the fixed scroll (20) and can introduce liquid refrigerant outside the fixed scroll (20) into the liquid spraying channel (2002), and the other end of the liquid spraying channel (2002) extends to the inside of the fixed scroll (20) and sprays the introduced liquid refrigerant into a compression cavity;

the inside of the fixed scroll (20) is further provided with a gas injection passage (2004), one end of the gas injection passage (2004) is located at the outer surface of the fixed scroll (20) and is capable of introducing a gaseous refrigerant outside the fixed scroll (20) into the gas injection passage (2004), and the other end of the gas injection passage (2004) extends to the inside of the fixed scroll (20) and injects the introduced gaseous refrigerant into a compression chamber;

still include adapter (29), adapter (29) set up in static vortex dish (20) outside, and including mutually independent and each other not communicating liquid passage and gas passage, liquid passage can with on static vortex dish (20) hydrojet channel (2002) intercommunication, gas passage can with on static vortex dish (20) jet channel (2004) communicate.

2. The compressor of claim 1, wherein:

a cutting plane (2000) is formed on the outer circumference of the fixed scroll (20), and one end of the liquid spray channel (2002) is disposed at the cutting plane (2000) and extends toward the inside of the fixed scroll (20); one end of the gas injection passage (2004) is disposed at the tangential plane (2000) and extends toward the inside of the fixed scroll (20).

3. The compressor of claim 2, wherein:

the cutting plane (2000) is provided with a first groove (2003), the first groove (2003) is arranged at the position of the air injection channel (2004), and the sectional area of the first groove (2003) is larger than that of the air injection channel (2004), so that the air injection channel (2004) is accommodated in the first groove (2003).

4. The compressor of claim 2, wherein:

the adapter (29) is a bending structure, and comprises a first part connected with the tangent plane (2000) and a second part connected with the first part in a bending way:

the liquid passage includes a first lateral through hole (2904) provided on the first portion and an intermediate through hole (2903) provided on the second portion, the first lateral through hole (2904) extends inside the first portion, the intermediate through hole (2903) extends inside the second portion, and one end of the first lateral through hole (2904) communicates with the intermediate through hole (2903) and the other end communicates with the liquid spray passage (2002) on the fixed scroll (20);

the gas channel includes a lateral groove (2907) provided on the first portion and first and second axial through holes (2905, 2906) provided on the second portion, the lateral groove (2907) extends inside the first portion, the first and second axial through holes (2905, 2906) extend inside the second portion, respectively, and the second and first axial through holes (2906, 2905) communicate with the lateral groove (2907) in sequence, the lateral groove (2907) communicates with the gas spouting channel (2004) on the fixed scroll (20).

5. The compressor of claim 4, wherein:

the first portion is cylindrical in structure, the middle through hole (2903) extends along the axial direction of the first portion, and the first transverse through hole (2904) extends along the radial direction of the first portion; the second transverse through hole (2906) extends in a radial direction of the first portion, the first axial through hole (2905) extends in an axial direction of the first portion, and the transverse groove (2907) extends in a radial direction of the first portion.

6. The compressor of claim 5, wherein:

the first axial through hole (2905) opens between the inner wall and the outer wall of the first portion and extends in the axial direction, the second lateral through hole (2906) and the lateral groove (2907) communicate with the first axial through hole (2905) at different axial positions of the first portion, respectively, and the second lateral through hole (2906) also communicates with the intermediate through hole (2903).

7. A compressor according to any one of claims 4 to 6, wherein:

a first connecting rod (24), one end of the first connecting rod (24) is provided with a second axial through hole (2402) extending along the axial direction of the first connecting rod internally, and the first connecting rod (24) can be inserted into the middle through hole (2903) of the adapter (29) so that the second axial through hole (2402) is communicated with the first transverse through hole (2904);

one end of the first connecting rod (24) is provided with a first axial ring groove (2406) extending inwards along the axial direction of the first connecting rod, the first axial ring groove (2406) is positioned at the radial outer side of the second axial through hole (2402) and positioned at the inner side of the outer wall of the first connecting rod (24), a third transverse through hole (2403) is radially formed in the outer wall of the first connecting rod (24), one end of the third transverse through hole (2403) is communicated with the first axial ring groove (2406), and the other end of the third transverse through hole can be communicated with the second transverse through hole (2906) after the first connecting rod (24) is inserted into the middle through hole (2903) of the adapter (29).

8. The compressor of claim 7, wherein:

the compressor further comprises a connecting rod sealing ring (28), and the connecting rod sealing ring (28) can be respectively embedded into the sealing ring grooves (2401).

9. The compressor of claim 7 or 8, wherein:

the connector is characterized by further comprising a second connecting rod (22), wherein the second connecting rod (22) is arranged on one side, deviating from the adapter (29) along the axial direction, of the first connecting rod (24), one end of the second connecting rod (22) is provided with a fourth axial through hole (2204) in an axially extending mode, the outer wall of the second connecting rod (22) is radially provided with a fourth transverse through hole (2202), one end of the fourth axial through hole (2204) is communicated with the fourth transverse through hole (2202), and the other end of the fourth axial through hole is communicated with the second axial through hole (2402) of the first connecting rod (24);

one end of the second connecting rod (22) is provided with a second axial ring groove (2203) extending inwards along the axial direction of the second connecting rod, the second axial ring groove (2203) is located on the radial outer side of the fourth axial through hole (2204) and on the inner side of the outer wall of the second connecting rod (22), a fifth transverse through hole (2201) is formed in the outer wall of the second connecting rod (22) along the radial direction, one end of the second axial ring groove (2203) is communicated with the fifth transverse through hole (2201), and the other end of the second axial ring groove is communicated with the first axial ring groove (2406) of the first connecting rod (24).

10. The compressor of claim 9, wherein:

the part of the first connecting rod (24) opposite to the second connecting rod (22) is formed into a first flange bulge (2404), the part of the second connecting rod (22) opposite to the first connecting rod (24) is formed into a second flange bulge (2206), and the first flange bulge (2404) is in butt joint with the second flange bulge (2206).

11. The compressor of claim 10, wherein:

first flange bulge (2404) with still be provided with connecting rod sealed pad (23) between second flange bulge (2206), connecting rod sealed pad (23) are provided with first logical groove (2302) and first through-hole (2303), first logical groove (2302) one end with first axial annular groove (2406) intercommunication, the other end with second axial annular groove (2203) intercommunication, first through-hole (2303) one end with second axial through-hole (2402) intercommunication, the other end with fourth axial through-hole (2204) intercommunication.

12. A compressor according to any one of claims 9 to 11, wherein:

the device also comprises a shell (5), a first injection pipe (21a) and a second injection pipe (21b), wherein the fixed scroll (20) and the movable scroll (19) are arranged in the shell (5), one end of the first injection pipe (21a) is connected into the fourth transverse through hole (2202) of the second connecting rod (22), the other end of the first injection pipe penetrates out of the shell (5), one end of the second injection pipe (21b) is connected into the fifth transverse through hole (2201) of the second connecting rod (22), and the other end of the second injection pipe penetrates out of the shell (5); the shell (5) is provided with a first spray pipe through hole (501a) allowing the first spray pipe (21a) to pass through, and the shell (5) is further provided with a second spray pipe through hole (501b) allowing the second spray pipe (21b) to pass through.

13. The compressor according to any one of claims 7 to 8, wherein:

the adapter pressing ring (26) and the adapter sealing ring (27) are arranged on the bottom end face of the adapter (29) in a superposed and integrated mode, and the first connecting rod (24) is allowed to penetrate through the adapter pressing ring (26) and the adapter sealing ring (27).

14. A compressor according to any one of claims 2 to 13, wherein:

a sealing gasket (30) is further arranged between the adapter (29) and the tangent plane (2000) of the fixed scroll disc (20), and a second through hole (3003) communicated with the liquid spraying channel (2002) and a second through groove (3002) communicated with the air spraying channel (2004) are formed in the sealing gasket (30).

15. An air conditioning system comprising a condenser (03), an evaporator (07) and a first throttling device (06), characterized in that: further comprising the compressor of any one of claims 1-14.

16. The air conditioning system of claim 15, wherein:

the condenser is characterized by comprising a main pipeline (A), wherein one end of the main pipeline is communicated with the condenser (03), the other end of the main pipeline is communicated with the first throttling device (06), and an economizer (04) is further arranged on the main pipeline (A); a temperature sensor (02) is arranged on an exhaust pipeline of the compressor;

the condenser is characterized by further comprising a branch pipeline (B), wherein the branch pipeline (B) branches from the outlet of the condenser (03), a second throttling device (05) is arranged on the branch pipeline (B), and the branch pipeline (B) exchanges heat with the main pipeline (A) in the economizer (04) after passing through the second throttling device (05);

the device also comprises a liquid spraying pipeline (C), one end of the liquid spraying pipeline (C) is communicated to the branch pipeline (B) after passing through the economizer (04), the other end of the liquid spraying pipeline (C) can be communicated to the liquid spraying channel (2002), and a second control valve (09) is arranged on the liquid spraying pipeline (C);

the economizer is characterized by further comprising an air injection pipeline (D), one end of the air injection pipeline (D) is also communicated to the branch pipeline (B) after heat exchange of the economizer (04), the other end of the air injection pipeline (D) can be communicated to the air injection channel (2004), and a first control valve (08) is arranged on the air injection pipeline (D).

17. A control method of an air conditioning system is characterized in that:

use of an air conditioning system according to any of claims 15 to 16, when comprising a liquid injection line (C) and a gas injection line (D), to selectively control the opening of the liquid injection line (C) or the opening of the gas injection line (D) depending on the level of the compressor discharge temperature.

18. The control method according to claim 17, characterized in that:

when a second control valve (09) is arranged on the liquid injection pipeline (C) and a first control valve (08) is arranged on the gas injection pipeline (D):

when the exhaust temperature is detected to be higher than a safety range, controlling to open the second control valve (09) and close the first control valve (08); when the exhaust temperature is detected to be lower than a safety range, the first control valve (08) is controlled to be opened, and the second control valve (09) is controlled to be closed.

19. The control method according to claim 18, characterized in that:

when the exhaust temperature is detected to be higher than a safety range, controlling and adjusting the opening degree of the second throttling device (05) to be increased; when the exhaust temperature is detected to be lower than the safety range, the opening degree of the second throttling device (05) is controlled to be reduced.