CN111502993B - Compressor, heat exchange system and air conditioner - Google Patents

Compressor, heat exchange system and air conditioner Download PDF

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Publication number
CN111502993B
CN111502993B CN202010335589.6A CN202010335589A CN111502993B CN 111502993 B CN111502993 B CN 111502993B CN 202010335589 A CN202010335589 A CN 202010335589A CN 111502993 B CN111502993 B CN 111502993B
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China
Prior art keywords
compression cylinder
heat exchange
compressor
exchange system
air
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CN202010335589.6A
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CN111502993A (en
Inventor
胡余生
魏会军
徐嘉
邹鹏
任丽萍
万鹏凯
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/122—Arrangements for supercharging the working space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F25B31/026—Compressor arrangements of motor-compressor units with compressor of rotary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The invention provides a compressor, a heat exchange system and an air conditioner, wherein the compressor comprises a shell provided with a first exhaust port, a first compression cylinder and a second compression cylinder are arranged in the shell, the first compression cylinder is provided with a first air inlet and a first air outlet communicated with the first exhaust port, the second compression cylinder is provided with a second air inlet and a second air outlet, the shell is also provided with a second exhaust port communicated with the second air outlet, the second exhaust port can be switched and communicated with the first exhaust port, the second exhaust port can also be switched and communicated with the first air inlet, the compressor comprises a locking piece, the locking piece can be switched and communicated with the first exhaust port to control a sliding piece of the first compression cylinder to keep static, the locking piece can also be switched and communicated with the second air inlet to release sliding limitation on the sliding piece, the heat exchange system of the compressor is arranged, and the air conditioner provided with the compressor or the heat exchange. The compressor has a single-cylinder working mode, a double-cylinder working mode and a double-stage working mode, and can enter the corresponding working mode according to the current working condition.

Description

Compressor, heat exchange system and air conditioner
Technical Field
The invention relates to the technical field of refrigeration, in particular to a compressor, a heat exchange system provided with the compressor, an air conditioner provided with the compressor and an air conditioner provided with the heat exchange system.
Background
The existing compressor can generally switch the working mode of the compressor according to the working condition of the compressor so as to ensure the energy efficiency of the compressor. For example, the invention patent with publication number CN105221421B discloses a compressor having two operation modes, including a two-cylinder operation mode and a two-stage operation mode, but the compressor does not have a single-cylinder operation mode; the invention patent with publication number CN104405640B discloses a rotary compressor having two operation modes, including a single-cylinder operation mode and a double-cylinder operation mode, but the compressor does not have a two-stage operation mode. It can be seen that although the existing compressor can be switched to the adaptive working mode according to partial working conditions, the existing compressor cannot meet the requirements of all working conditions and complex working conditions, so that the compressor cannot keep stable and reasonable output in each working condition.
Disclosure of Invention
In order to solve the above problems, a first object of the present invention is to provide a compressor having a single-cylinder operation mode, a double-cylinder operation mode and a dual-stage operation mode to meet the requirements of all operating conditions.
The second purpose of the invention is to provide a heat exchange system with the compressor.
A third object of the present invention is to provide an air conditioner having the above compressor.
The fourth purpose of the invention is to provide an air conditioner with the heat exchange system.
In order to achieve the main object of the present invention, the present invention provides a compressor, including a housing, the housing is provided with a first exhaust port, the housing has a first compression cylinder and a second compression cylinder therein, the first compression cylinder has a first intake port and a first outlet port, the first outlet port is communicated with the first exhaust port, the second compression cylinder has a second intake port and a second outlet port, wherein the housing is further provided with a second exhaust port communicated with the second outlet port, the second exhaust port can be switched to be communicated with the first exhaust port, the second exhaust port can also be switched to be communicated with the first intake port, the compressor includes a lock member, the lock member can be switched to be communicated with the first exhaust port to control a sliding vane of the first compression cylinder to keep still, and the lock member can also be switched to be communicated with the second intake port to release sliding restriction on the sliding.
Therefore, the compressor can have a single-cylinder working mode, a double-cylinder working mode and a double-stage working mode through the structural design of the compressor, and can be matched with a heat exchange system to realize the switching among the modes, so that the compressor can keep high-performance refrigeration under the conventional refrigeration working condition, realize large heating capacity under the heating working condition, and solve the problem that the compressor is difficult to keep high energy efficiency under the full working condition. When the second air outlet is communicated with the first air outlet and the locking piece controls the sliding vane of the first compression cylinder to keep static, the compressor enters a single-cylinder working mode; when the second air outlet is communicated with the first air outlet and the sliding restriction of the sliding sheet is released by the locking piece, the compressor enters a double-cylinder working mode; when the second air outlet is communicated with the first air inlet, the compressor enters a double-stage working mode.
The utility model provides a further scheme is, the lock piece includes baffle and pin, the baffle sets up between first compression cylinder and second compression cylinder, be provided with hole portion and runner on the baffle, the axial extension of hole portion along first compression cylinder, the both ends of hole portion respectively with first compression cylinder, the first end intercommunication of runner, the second end of runner can switch and communicate to first exhaust port, the second end of runner can also switch and communicate to the second induction port, be provided with the draw-in groove on the gleitbretter, the draw-in groove extends from baffle department to the gleitbretter along the axial, install in the hole portion pin slidable, the detachable joint of pin and draw-in groove.
Therefore, through the structural design of the partition plate and the adoption of the pin as the locking piece, on one hand, the switching of the compressor between a single-cylinder working mode and a double-cylinder working mode can be controlled; on the other hand, the structure of the compressor can be simplified, so that the volume of the compressor is reduced, the weight of the compressor is reduced, and the cost is saved.
Preferably, the compressor further comprises an enthalpy increasing device, the enthalpy increasing device is mounted on the shell, and the enthalpy increasing device is respectively communicated with the first exhaust port, the first air suction port and the second air outlet.
As can be seen from the above, the enthalpy increaser is used for sucking the gaseous refrigerant generated in the flash evaporator in the heat exchange system, so that the part of the gaseous refrigerant can be quickly sucked into the first compression cylinder and has the function of a liquid separator; in addition, the enthalpy increasing device can also be used as an external middle cavity in a two-stage working mode to mix the refrigerant compressed by the second compression cylinder and the vapor-supplementing enthalpy-increasing refrigerant (namely, the gaseous refrigerant generated in the flash evaporator).
The first scheme is that the enthalpy increasing device comprises a first shell, a first air suction pipe, a second air suction pipe and a first air discharge pipe, a first accommodating cavity is formed in the first shell, the first air suction pipe can be communicated with the first air discharge port and the first accommodating cavity, the second air suction pipe can be communicated with the second air discharge port and the first accommodating cavity, and the first air discharge pipe can be communicated with the first air suction port and the first accommodating cavity.
In a further aspect, in the vertical direction, a first horizontal height of the third air outlet of the first air suction pipe is smaller than a second horizontal height of the third air suction port of the first air suction pipe, and a third horizontal height of the fourth air outlet of the second air suction pipe is between the first horizontal height and the second horizontal height.
Therefore, the design of the relative positions of the first air suction pipe, the second air suction pipe and the first exhaust pipe can better prevent the liquid refrigerant from entering the first compression cylinder, and the enthalpy increasing device has the function of the middle cavity due to the design of the second air suction pipe, so that the gaseous refrigerant output by the flash evaporator and the gaseous refrigerant output by the second compression cylinder can be fully mixed in the enthalpy increasing device.
Another preferred scheme is that a second exhaust pipe, a third air suction pipe and a fourth air suction pipe are mounted on the shell, the second exhaust pipe is positioned in the first exhaust port and communicated with the first air outlet, the third exhaust pipe is communicated with the second air outlet, the third air suction pipe is communicated with the first air suction port, and the fourth air suction pipe is communicated with the second air suction port.
Therefore, the second exhaust pipe, the third air suction pipe and the fourth air suction pipe are arranged, so that the compressor is more convenient and reliable to connect with other elements of the heat exchange system.
Another preferred solution is that the first compression cylinder is located between the second compression cylinder and the motor of the compressor in the axial direction of the first compression cylinder.
From the above, through the relative position setting to first compression cylinder and second compression cylinder, can make the structural layout of compressor optimize more.
In order to achieve the second object of the present invention, the present invention provides a heat exchange system, including a compressor, a condenser, a first throttling device, a flash evaporator, an evaporator, a first stopping device, a second stopping device, a third stopping device, a first electronic valve and a second electronic valve, wherein the compressor includes a casing, the casing is provided with a first exhaust port, the casing has a first compression cylinder and a second compression cylinder therein, the first compression cylinder has a first air inlet and a first air outlet, the first air outlet is communicated with the first exhaust port, the second compression cylinder has a second air inlet and a second air outlet, the casing is further provided with a second exhaust port communicated with the second air outlet, the second exhaust port can be switched to be communicated with the first exhaust port, the second exhaust port can also be switched to be communicated with the first air inlet, the compressor further comprises a locking piece, the locking piece can be communicated with the first exhaust port in a switching mode to control the sliding piece of the first compression cylinder to keep static, the locking piece can also be communicated with the second air suction port in a switching mode to remove sliding limitation on the sliding piece, the first exhaust port, the condenser, the first throttling device, the flash evaporator, the evaporator and the second air suction port are sequentially connected to form a heat exchange loop, the first stopping device is connected between the second air outlet and the first air suction port in series, the second stopping device is connected between the second air outlet and the first exhaust port in series, the third stopping device is connected between the flash evaporator and the first air suction port in series, the first electronic valve is connected between the second air suction port and the locking piece in series, and the second electronic valve is connected between the first exhaust port and the locking piece in series.
Therefore, the heat exchange system can meet the requirements of different working conditions through the structural design of the heat exchange system, for example, under the working condition that the required refrigerating capacity is small, the heat exchange system can control the compressor to enter a single-cylinder working mode, so that the compressor can output small displacement; under the working condition that the required refrigerating capacity is large, the heat exchange system can control the compressor to enter a double-cylinder working mode, so that the compressor can output large discharge capacity; under the working condition that the required heating quantity is large, the heat exchange system controls the compressor to enter a two-stage working mode, so that the compressor performs two-stage enthalpy-increasing compression.
The further scheme is that the locking piece includes baffle and pin, the baffle sets up between first compression cylinder and second compression cylinder, be provided with hole portion and runner on the baffle, the axial extension of hole portion along first compression cylinder, the both ends of hole portion respectively with first compression cylinder, the first end intercommunication of runner, the second end and first electronic valve or the second electronic valve intercommunication of runner, be provided with the draw-in groove on the gleitbretter, the draw-in groove extends to the gleitbretter from baffle department along the axial, pin slidable mounting is in the hole portion, the detachable joint of pin and draw-in groove.
Preferably, the compressor further comprises an enthalpy increasing device, the enthalpy increasing device is mounted on the shell, and the enthalpy increasing device is respectively communicated with the flash evaporator, the first stopping device and the first air suction port.
The enthalpy increasing device comprises a first shell, a first air suction pipe, a second air suction pipe and a first air discharge pipe, a first accommodating cavity is formed in the first shell, the first air suction pipe is communicated with the flash evaporator and the first accommodating cavity, the second air suction pipe is communicated with the first cut-off device and the first accommodating cavity, and the first air discharge pipe is communicated with the first air suction port and the first accommodating cavity.
In a further aspect, in the vertical direction, a first horizontal height of the third air outlet of the first air suction pipe is smaller than a second horizontal height of the third air suction port of the first air suction pipe, and a third horizontal height of the fourth air outlet of the second air suction pipe is between the first horizontal height and the second horizontal height.
Another preferred scheme is that the flash evaporator comprises a second shell, a fifth air suction pipe, a fourth air exhaust pipe and a fifth air exhaust pipe, the second shell is provided with a second accommodating cavity, the fifth air suction pipe is communicated with the second accommodating cavity and the first throttling device, the fourth air exhaust pipe is communicated with the second accommodating cavity and the evaporator, and the fifth air exhaust pipe is communicated with the second accommodating cavity and the third stopping device.
As can be seen from the above, the flash evaporator is used for rapidly converting part of the liquid refrigerant throttled by the first throttling device into a gaseous refrigerant and splitting the gaseous refrigerant, so that the unconverted liquid refrigerant flows to the evaporator, and the converted gaseous refrigerant flows to the first compression cylinder.
In a further scheme, in the vertical direction, a fourth horizontal height of a fifth air outlet of the fifth air suction pipe is greater than a fifth horizontal height of a fifth air suction port of the fifth air discharge pipe, and the fifth horizontal height is greater than a sixth horizontal height of a fourth air suction port of the fourth air discharge pipe.
Therefore, the relative positions of the fifth air suction pipe, the fourth exhaust pipe and the fifth exhaust pipe are designed, so that the flash evaporator can split the gas refrigerant and the liquid refrigerant in the flash evaporator, the probability that the liquid refrigerant enters the enthalpy increasing device and/or the first compression cylinder is reduced as much as possible, and the gas refrigerant can be prevented from flowing back to the first throttling device.
In another preferred embodiment, the heat exchange system further comprises a second throttling device, and the second throttling device is connected in series between the flash evaporator and the evaporator.
From the above, the second throttling device is used for further converting the liquid refrigerant discharged from the flash evaporator, so that the refrigerant enters the evaporator in a gaseous form as completely as possible.
In another preferred embodiment, in the first operating mode of the compressor, the first electrovalve, the first cut-off device and the third cut-off device are closed, the second electrovalve and the second cut-off device are opened, and the locking member controls the slide plate to be kept still.
In another preferred embodiment, in the second operation mode of the compressor, the second electronic valve and the first cut-off device are closed, the first electronic valve, the second cut-off device and the third cut-off device are opened, the lock member releases the sliding restriction on the sliding vane, and the first compression cylinder and the second compression cylinder are both used as the primary compression cylinder.
In another preferred embodiment, in the third operation mode of the compressor, the second electronic valve and the second stopping device are closed, the first electronic valve, the first stopping device and the third stopping device are opened, the sliding restriction of the sliding vane is released by the locking member, the second compression cylinder serves as the first-stage compression cylinder, and the second compression cylinder serves as the second-stage compression cylinder.
Therefore, the working modes of the compressor can be switched through the first electronic valve, the second electronic valve, the first stopping device, the second stopping device and the third stopping device, so that the compressor can switch the corresponding working modes according to the working conditions of the heat exchange system, and the energy efficiency of the compressor and the heat exchange system is guaranteed.
In another preferred embodiment, the first throttling device is a capillary tube or an electronic expansion valve.
In a further preferred embodiment, at least one of the first shut-off device, the second shut-off device and the third shut-off device is a shut-off valve.
In another preferred embodiment, the first electronic valve is a solenoid valve or an electric valve, and the second electronic valve is a solenoid valve or an electric valve.
From the above, the types of the first throttling device, the stopping device and the electronic valve can be selected adaptively according to the requirements of the heat exchange system.
In order to achieve the third object of the present invention, the present invention provides an air conditioner, wherein the air conditioner comprises the above compressor.
In order to achieve the fourth object of the present invention, the present invention provides an air conditioner, wherein the air conditioner comprises the heat exchange system.
Drawings
FIG. 1 is a system block diagram of an embodiment of the heat exchange system of the present invention.
Fig. 2 is a partial structural sectional view of a compressor in accordance with an embodiment of the heat exchange system of the present invention.
FIG. 3 is a position reference diagram of the enthalpy-increasing device in use state of the heat exchange system of the embodiment of the invention.
Fig. 4 is a reference diagram of the position of the flash evaporator in use in the embodiment of the heat exchange system of the invention.
FIG. 5 is a heat exchange circuit diagram of a compressor in a single cylinder mode of operation in accordance with an embodiment of the heat exchange system of the present invention.
FIG. 6 is a heat exchange circuit diagram of a compressor in a two cylinder mode of operation in accordance with an embodiment of the heat exchange system of the present invention.
Fig. 7 is a diagram of a heat exchange circuit of a compressor in a two-stage mode of operation according to an embodiment of the heat exchange system of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
The embodiment of the heat exchange system is as follows:
referring to fig. 1, the heat exchange system 100 includes a compressor 1, a condenser 2, a first throttling device 31, a second throttling device 32, a first cut-off device 41, a second cut-off device 42, a third cut-off device 43, a first electronic valve 51, a second electronic valve 52, a flash evaporator 6, and an evaporator 7. The first throttling device 31 may be a capillary tube or an electronic expansion valve, and the second throttling device 32 may be a capillary tube or an electronic expansion valve; the first electronic valve 51 may be a solenoid valve or an electric valve, and the second electronic valve 52 may be a solenoid valve or an electric valve. In the present embodiment, the first throttle device 31 and the second throttle device 32 are both electronic expansion valves, the first cut-off device 41, the second cut-off device 42, and the third cut-off device 43 are all cut-off valves, and the first electronic valve 51 and the second electronic valve 52 are both solenoid valves.
The compressor 1 comprises a body 11, a locking member, an enthalpy increasing device 13, a second exhaust pipe 14, a third exhaust pipe 15, a third suction pipe 16 and a fourth suction pipe 17. The body 11 includes a casing 111, a third receiving chamber 1111 is formed in the casing 111, the casing 111 is provided with a first discharge port 1112 and a second discharge port 1113, the first discharge port 1112 is communicated with the third receiving chamber 1111, and a second discharge pipe 14 is installed in the first discharge port 1112 and communicated with the third receiving chamber 1111, so that the gaseous refrigerant discharged from the first compression cylinder 112 can be discharged out of the compressor 1 through the second discharge pipe 14.
The third receiving chamber 1111 houses therein the first compression cylinder 112, the second compression cylinder 113, the motor 116, and the crankshaft 117. Wherein a diaphragm 114 is arranged between the first compression cylinder 112 and the second compression cylinder 113, the diaphragm 114 serving to separate the first compression cylinder 112 from the second compression cylinder 113. The motor 116 is fixedly connected with the housing 111 through its stator, the crankshaft 117 is fixedly connected with the rotor of the motor 116, so that the crankshaft 117 can be driven by the motor to rotate, and the crankshaft 117 passes through the first compression cylinder 112 and the second compression cylinder 113 to drive the first compression cylinder 112 and the second compression cylinder 113 to work.
Specifically, the first compression cylinder 112 includes a first flange 1121, a first cylinder body 1122, a first roller 1123, a sliding piece 1124 and a first spring 1125, and the first cylinder body 1122 is located between the first flange 1121 and the diaphragm 114, so that the first flange 1121, the first cylinder body 1122 and the diaphragm 114 enclose a first compression chamber. A first roller 1123 is positioned within the first compression chamber, and the first roller 1123 is fixedly nested within a first crankshaft section of the crankshaft 117. Slide 1124 is slidably connected to first cylinder 1122 in a first radial direction of crankshaft 117, and slide 1124 is detachably abutted to first roller 1123. First spring 1125 is connected between slide 1124 and first cylinder 1122, or between slide 1124 and housing 111, to drive slide 1124 in a first radial direction towards first roller 1123. The sliding plate 1124 is provided with a clamping groove 1128, and the clamping groove 1128 extends from the partition 114 toward the sliding plate 1124 along the axial direction of the first cylinder (i.e., the axial direction of the rotor of the motor 116). The first cylinder body 1122 is provided with a first air inlet 1126 and a first air outlet communicating with the third receiving chamber 1111 through the first flange 1121, so that the refrigerant compressed by the first compression cylinder 112 can be discharged out of the compressor 1 through the first and third receiving chambers 1111 through the second discharge pipe 14 at the first discharge port 1112. A third suction duct 16 is mounted to the housing 111 and to the first cylinder 1122, the third suction duct 16 communicating with the first suction port 1126.
The second compression cylinder 113 includes a second flange 1131, a second cylinder 1132, a second roller 1133, a second sliding piece 1134 and a second spring 1135, and the second cylinder 1132 is located between the second flange 1131 and the partition 114, so that the second flange 1131, the second cylinder 1132 and the partition 114 enclose the second compression cylinder 113. A second roller 1133 is positioned within the second compression chamber, and the second roller 1133 is fixedly mounted on a second crankshaft section of the crankshaft 117. The second vane 1134 is slidably connected to the second cylinder 1132 along a second radial direction of the crankshaft 117, and the second vane 1134 abuts the second roller 1133. A second spring 1135 is connected between the second vane 1134 and the second cylinder 1132, or between the second vane 1134 and the housing 111, to drive the second vane 1134 to move in the second radial direction toward the second roller 1133, so that the second vane 1134 is always adjacent to the second roller 1133. The second cylinder 1132 is provided with a second suction port 1136 and a second air outlet, the fourth air suction pipe 17 is installed on the casing 111 and installed on the second cylinder 1132, and the fourth air suction pipe 17 is communicated with the second suction port 1136. A middle chamber 1138 is formed between the second flange 1131 and the flange cover plate 115, the middle chamber 1138 is communicated with the second air outlet and the second air outlet 1113, and the third air outlet pipe 15 is located in the second air outlet and is fixedly installed on the outer shell 111 and the second flange 1131, so that the refrigerant compressed by the second compression cylinder 113 can be discharged out of the compressor 1 through the second air outlet and the middle chamber 1138 via the second air outlet 1113 and the third air outlet pipe 15. Furthermore, in the axial direction of the first compression cylinder 112, the first compression cylinder 112 is located between the motor 116 and the second compression cylinder 113.
Referring to fig. 2, the partition plate 114 is provided with a hole portion 1141 and a flow passage 1142, and the hole portion 1141 extends in the axial direction of the first compression cylinder 112 toward the sliding plate 1124 such that one end of the hole portion 1141 communicates with the first compression chamber. In addition, the other end of the hole portion 1141 is connected to the first end of the flow channel 1142, the second end of the flow channel 1142 is connected to the second exhaust pipe 14 via the connection pipe 1143, and the flow channel 1142 is also connected to the third exhaust pipe 15. The locking member is used to control the sliding piece 1124 of the first compression cylinder 112 to remain stationary or to release the sliding restriction of the sliding piece 1124, and in this embodiment, the locking member includes the aforementioned partition plate 114 and the pin 12, and the pin 12 is slidably installed in the hole portion 1141 of the partition plate 114 along the axial direction of the first compression cylinder 112 and slides toward or away from the sliding piece 1124 by the pressure difference between the flow passage 1142 and the first compression cylinder 112. When the pressure in the flow passage 1142 is greater than the pressure in the first compression chamber, the pin 12 is pushed toward the sliding piece 1124, so that the pin 12 engages with the slot 1128 of the sliding piece 1124 to lock the sliding piece 1124, and at this time, the sliding piece 1124 remains stationary, so that the first compression cylinder 112 is in a cylinder deactivation state. The cylinder deactivation state means that the compression cylinder cannot perform suction, compression and discharge. When the pressure in the flow passage 1142 is lower than the pressure in the first compression chamber, the pin 12 is pushed toward the partition 114, so that the pin 12 is disengaged from the engaging groove 1128 of the sliding piece 1124 to release the sliding restriction of the sliding piece 1124, and at this time, the sliding piece 1124 is always kept in abutment with the first roller 1123 by the first spring 1125, thereby enabling the first compression cylinder 112 to normally perform suction, compression and discharge.
An enthalpy increasing device 13 is mounted on the housing, and the enthalpy increasing device 13 can be respectively communicated with the first exhaust port 1112, the first intake port 1126 and the second exhaust port. Specifically, the enthalpy increasing device 13 includes a first housing 131, a first suction pipe 132, a second suction pipe 133, and a first discharge pipe 134. The first housing 131 has a first receiving chamber 130, a first suction pipe 132 communicating the first receiving chamber 130 with the third receiving chamber 1111, a second suction pipe 133 communicating the first receiving chamber 130 with the third discharge pipe 15, and a first discharge pipe 134 communicating the first receiving chamber 130 with the third suction pipe 16. As shown in fig. 3, in the vertical direction X, the first horizontal height H1 of the third air outlet of the first air suction pipe 132 is smaller than the second horizontal height H2 of the third air inlet of the first air discharge pipe 134, and the third horizontal height H3 of the fourth air outlet of the second air suction pipe 133 is between the first horizontal height H1 and the second horizontal height H2. The relative position design of first suction pipe 132, second suction pipe 133 and first discharge pipe 134 can be better avoid liquid refrigerant to get into first compression cylinder 112, and the design of second suction pipe 133 makes enthalpy-increasing device 13 have the effect of external middle chamber, make gaseous state refrigerant that flash vessel 6 exported and gaseous state refrigerant that second compression cylinder 113 exported can be fully mixed in enthalpy-increasing device 13, in addition, the relative position design of first suction pipe 132, second suction pipe 133 and first discharge pipe 134 can also make enthalpy-increasing device not receive the influence of compressor direction of placing, no matter whether the compressor is in horizontal position or vertical position can guarantee enthalpy-increasing device's normal work promptly.
As shown in fig. 1, the second exhaust pipe 14, the first throttling device 31, the flash evaporator 6, the second throttling device 32, the evaporator 7 and the fourth suction pipe 17 are connected in sequence to form a heat exchange loop. The flash evaporator 6 includes a second casing 61, a fifth suction pipe 62, a fourth exhaust pipe 63, and a fifth exhaust pipe 64. The second casing 61 has a second accommodating chamber 60, a fifth suction pipe 62 communicating the second accommodating chamber 60 with the first throttle device 31, a fourth exhaust pipe 63 communicating the second accommodating chamber 60 with the evaporator 7, and a fifth exhaust pipe 64 communicating the second accommodating chamber 60 with the first suction pipe 132 of the enthalpy increasing device 13. With reference to fig. 4, in the vertical direction X, the fourth horizontal height H4 of the fifth outlet of the fifth suction pipe 62 is greater than the fifth horizontal height H5 of the suction port of the fifth exhaust pipe 64, and the fifth horizontal height H5 is greater than the sixth horizontal height H6 of the fourth suction port of the fourth exhaust pipe 63. The relative positions of the fifth suction line 62, the fourth discharge line 63 and the fifth discharge line 64 are designed to allow the flash evaporator 6 to split the gaseous and liquid refrigerants therein and to minimize the possibility of the liquid refrigerant entering the enthalpy increaser 13 and/or the first compression cylinder 112, while avoiding the backflow of the gaseous refrigerant to the first throttle device 31.
The first cut-off device 41 is connected in series between the second air outlet and the first air inlet 1126, that is, the first cut-off device 41 is connected in series between the third air outlet pipe 15 and the second air inlet pipe 133 of the enthalpy increasing device 13 to control the communication or cut-off between the second air outlet and the first air inlet 1126. The second blocking device 42 is connected in series between the second air outlet and the first exhaust port 1112, that is, the second blocking device 42 is connected in series between the third exhaust pipe 15 and the second exhaust pipe 14 to control communication or blocking between the second air outlet and the first exhaust port 1112. The third stopping device 43 is connected in series between the flash evaporator 6 and the first air intake 1126, that is, the third stopping device 43 is connected in series between the fifth exhaust pipe 64 of the flash evaporator 6 and the first air intake pipe 132 of the enthalpy increasing device 13 to control the communication or the separation between the flash evaporator 6 and the first air intake 1126.
The first electronic valve 51 is connected in series between the second suction port 1136 and the locking member, that is, the first electronic valve is connected in series between the fourth suction pipe 17 and the connection pipe 1143, so that when the first electronic valve 51 is opened, the low pressure refrigerant at the second suction port 1136 is guided into the flow passage 1142 of the partition 114. The second electronic valve 52 is connected in series between the first exhaust port 1112 and the locking member, that is, the second electronic valve 52 is connected in series between the second exhaust pipe 14 and the connecting pipe 1143, so as to guide the high-pressure refrigerant at the second exhaust pipe 14 into the flow passage 1142 of the partition plate 114 when the second electronic valve 52 is opened.
The following describes the switching of the operation modes of the compressor 1 under different operating conditions:
with reference to fig. 5, when the compressor 1 operates under the working condition of a smaller required refrigerating capacity, the compressor 1 adopts a single-cylinder working mode with a smaller displacement, and the single-cylinder working mode specifically operates as follows:
the second cut-off device 42 and the second electronic valve 52 in the heat exchange system 100 are opened, and the first cut-off device 41, the third cut-off device 43, and the first electronic valve 51 in the heat exchange system 100 are closed.
When the compressor 1 is started by power, the rotor of the motor 116 drives the crankshaft 117 to rotate, the crankshaft 117 drives the first roller 1123 and the second roller 1133 to rotate, respectively, and under the action of the pressure difference, the second compression cylinder 113 sucks the low-temperature and low-pressure refrigerant generated by the evaporator 7 through the fourth suction pipe 17, compresses the low-temperature and low-pressure refrigerant, converts the refrigerant into a medium-temperature and medium-pressure refrigerant or a high-temperature and high-pressure refrigerant, and outputs the refrigerant to the condenser 2 through the second stopping device 42 and the second exhaust pipe 14. At this time, a part of the high-temperature and high-pressure refrigerant output from the second discharge pipe 14 enters the connection pipe 1143 through the second electronic valve 52 and reaches the bottom of the pin 12, so that the pressure at the bottom of the pin 12 is greater than the pressure at the top of the pin 12 in the second compression chamber, and the pin 12 moves toward the sliding piece 1124 of the first compression cylinder 112 along the hole portion 1141 and engages with the slot 1128 of the sliding piece 1124 to lock the sliding piece 1124, so that the sliding piece 1124 cannot freely reciprocate in the sliding piece slot of the first compression cylinder 1122, and the first compression cylinder 112 cannot perform suction, compression and discharge.
It can be seen that in the above state, only the second compression cylinder 113 of the compressor 1 maintains the normal compression operation, so that the compressor 1 is in the single cylinder operation mode with the smaller displacement.
With reference to fig. 6, when the compressor 1 operates under the working condition of large required refrigerating capacity, the compressor 1 adopts the double-cylinder working mode with large displacement, and the double-cylinder working mode specifically operates as follows:
the second cutoff device 42, the third cutoff device 43, and the first electronic valve 51 in the heat exchange system 100 are opened, and the first cutoff device 41 and the second electronic valve 52 in the heat exchange system 100 are closed.
When the compressor 1 is started by power, the rotor of the motor 116 drives the crankshaft 117 to rotate, the crankshaft 117 drives the first roller 1123 and the second roller 1133 to rotate, respectively, and under the action of pressure difference, the second compression cylinder 113 sucks the low-temperature and low-pressure refrigerant generated by the evaporator 7 through the fourth suction pipe 17, compresses the low-temperature and low-pressure refrigerant, and converts the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure refrigerant. Meanwhile, the low-temperature and low-pressure refrigerant generated by the evaporator 7 enters the connecting pipe 1143 through the first electronic valve 51 and reaches the bottom of the pin 12, and at this time, because the high-temperature and high-pressure refrigerant is in the first compression cylinder 112, the pressure at the bottom of the pin 12 is lower than the pressure at the top of the pin 12, so that the pin 12 moves toward the second compression cylinder 113 along the hole portion 1141 and is engaged with the slot 1128 of the sliding piece 1124 of the first compression cylinder 112, so as to release the sliding restriction of the sliding piece 1124, and the sliding piece 1124 can freely reciprocate in the sliding piece slot of the first cylinder 1122, thereby enabling the first compression cylinder 112 to normally perform suction, compression and exhaust.
After passing through the condenser 2, the high-temperature and high-pressure refrigerant generated by the first compression cylinder 112 is reduced in pressure to be a low-temperature and low-pressure liquid refrigerant via the first throttling device 31, and then enters the flash evaporator 6 through the fifth suction pipe 62 of the flash evaporator 6 to be flashed to form a medium-temperature and medium-pressure gaseous refrigerant. Then, the middle temperature and middle pressure gas refrigerant firstly enters the enthalpy increasing device 13 through the fifth gas discharge pipe 64 and the first gas suction pipe 132, then enters the first compression cylinder 112 through the first gas discharge pipe 134 and the third gas suction pipe 16 of the enthalpy increasing device 13, and is compressed by the first compression cylinder 112; the liquid refrigerant in the flash evaporator 6 enters the second throttling device 32 through the fourth exhaust pipe 63 for throttling, then enters the evaporator 7, and finally enters the second compression cylinder 113 for compression.
It can be seen that, in the above state, the first compression cylinder 112 and the second compression cylinder 113 of the compressor 1 both maintain normal compression operation, and the first compression cylinder 112 and the second compression cylinder 113 both are one-stage compression cylinders, so that the compressor 1 is in the two-cylinder operation mode with larger displacement. The medium-temperature and medium-pressure refrigerant in the flash evaporator 6 is sucked into the first compression cylinder 112, and the refrigerant compressed and discharged by the first compression cylinder 112 is discharged out of the compressor 1 through the inside of the shell 111; the refrigerant sucked into the second compression cylinder 113 is low-temperature and low-pressure refrigerant generated in the evaporator 7, and the refrigerant discharged from the second compression cylinder 113 after compression exits the compressor 1 only through the middle chamber 1138 and the third discharge pipe 15, and is merged with the refrigerant discharged from the first compression cylinder 112 at the second discharge pipe 14, and finally, the refrigerant is sent to the condenser 2 to realize the refrigeration cycle.
With reference to fig. 7, when the compressor 1 operates under a working condition with a large required refrigerating capacity, the compressor 1 adopts a two-stage operation mode of two-stage enthalpy-increasing compression, and the two-stage operation mode specifically operates as follows:
the first cutoff device 41, the third cutoff device 43 and the first electronic valve 51 of the heat exchange system 100 are opened, and the second cutoff device 42 and the second electronic valve 52 of the heat exchange system 100 are closed.
When the compressor 1 is started by power, the rotor of the motor 116 drives the crankshaft 117 to rotate, the crankshaft 117 drives the first roller 1123 and the second roller 1133 to rotate, respectively, and under the action of pressure difference, the second compression cylinder 113 sucks the low-temperature and low-pressure refrigerant generated by the evaporator 7 through the fourth suction pipe 17, compresses the low-temperature and low-pressure refrigerant, and converts the low-temperature and low-pressure refrigerant into medium-temperature and medium-pressure refrigerant. Meanwhile, a part of the low-temperature and low-pressure refrigerant generated by the evaporator 7 enters the connection pipe 1143 through the first electronic valve 51 and reaches the bottom of the pin 12, and at this time, since the refrigerant in the first compression cylinder 112 is a high-temperature and high-pressure refrigerant, the pressure at the bottom of the pin 12 is lower than the pressure at the top of the pin 12, so that the pin 12 moves toward the second compression cylinder 113 along the hole portion 1141 and engages with the slot 1128 of the sliding piece 1124 of the first compression cylinder 112, thereby releasing the sliding restriction of the sliding piece 1124, and allowing the sliding piece 1124 to freely reciprocate in the sliding piece slot of the first cylinder 1122, thereby allowing the first compression cylinder 112 to normally perform suction, compression and discharge.
In addition, the intermediate-temperature and intermediate-pressure refrigerant converted from the second compression cylinder 113 after compression is discharged from the compressor 1 through the middle chamber 1138 and the third discharge pipe 15, and then enters the enthalpy increasing device 13 through the first stopping device 41 and the second suction pipe 133, and is mixed with the intermediate-temperature and intermediate-pressure refrigerant discharged from the fifth discharge pipe 64 of the flash evaporator 6 in the enthalpy increasing device 13, so as to achieve the enthalpy increase for air supply. Then, the mixed refrigerant enters the first compression cylinder 112 through the first discharge pipe 134 and the third suction pipe 16 of the enthalpy increasing device 13 to perform the second stage compression of the refrigerant, and the refrigerant compressed in the first compression cylinder 112 enters the condenser 2 through the third receiving chamber 1111 and the second discharge pipe 14, thereby implementing a refrigeration cycle.
It can be seen that, in the above state, the first compression cylinder 112 and the second compression cylinder 113 of the compressor 1 both maintain normal compression operation, and the second compression cylinder 113 is a first-stage compression cylinder and the first compression cylinder 112 is a second-stage compression cylinder, so that the compressor 1 is in a two-stage operation mode.
In summary, according to the present invention, through the structural design of the compressor 1, the compressor 1 can have a single-cylinder working mode, a double-cylinder working mode and a double-stage working mode, so as to cooperate with the heat exchange system 100 to realize the switching between the modes, thereby enabling the compressor 1 to maintain high performance refrigeration under the conventional refrigeration working condition, realizing large heating capacity under the refrigeration working condition, and solving the problem that the compressor 1 is difficult to maintain high energy efficiency under the full working condition.
First embodiment of air conditioner:
in this implementation, the air conditioner includes the compressor in the above-mentioned heat transfer system embodiment, and the air conditioner that is provided with this compressor can satisfy full operating mode, complicated operating mode demand for can switch the mode of compressor according to the size of the required refrigerating output of environment, heating capacity, make the compressor get into single cylinder mode, double-cylinder mode or doublestage mode.
Second embodiment of air conditioner:
in this implementation, the air conditioner includes the heat transfer system of above-mentioned heat transfer system embodiment, and the air conditioner that is provided with heat transfer system can satisfy full operating mode, complicated operating mode demand for can switch the mode of compressor according to the size of the required refrigeration capacity of environment, heating capacity, make the compressor get into single cylinder mode, double-cylinder mode or doublestage mode.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.

Claims (15)

1. Heat transfer system, its characterized in that includes:
the compressor comprises a shell, wherein the shell is provided with a first exhaust port, a first compression cylinder and a second compression cylinder are arranged in the shell, the first compression cylinder is provided with a first air suction port and a first air outlet, the first air outlet is communicated with the first exhaust port, and the second compression cylinder is provided with a second air suction port and a second air outlet;
the shell is also provided with a second air outlet communicated with the second air outlet, the second air outlet can be switched and communicated to the first air outlet, and the second air outlet can also be switched and communicated to the first air inlet;
the compressor also comprises a locking piece which can be switched and communicated to the first exhaust port to control a sliding vane of the first compression cylinder to keep static, and the locking piece can also be switched and communicated to the second air suction port to release sliding limitation on the sliding vane;
the heat exchange system also comprises a condenser, a first throttling device, a flash evaporator, an evaporator, a first stopping device, a second stopping device, a third stopping device, a first electronic valve and a second electronic valve;
the first exhaust port, the condenser, the first throttling device, the flash evaporator, the evaporator and the second air suction port are sequentially connected to form a heat exchange loop;
the first stopping device is connected in series between the second air outlet and the first air inlet, the second stopping device is connected in series between the second air outlet and the first air outlet, the third stopping device is connected in series between the flash evaporator and the first air inlet, the first electronic valve is connected in series between the second air inlet and the locking piece, and the second electronic valve is connected in series between the first air outlet and the locking piece.
2. The heat exchange system of claim 1, wherein:
the lock member includes:
the partition plate is arranged between the first compression cylinder and the second compression cylinder, a hole part and a flow passage are arranged on the partition plate, the hole part extends along the axial direction of the first compression cylinder, two ends of the hole part are respectively communicated with the first compression cylinder and a first end of the flow passage, and a second end of the flow passage is communicated with a first electronic valve or a second electronic valve;
the pin, be provided with the draw-in groove on the gleitbretter, the draw-in groove is followed the axial certainly baffle department to extend in the gleitbretter, install pin slidable in the hole portion, the pin with the liftoff joint of draw-in groove detachable.
3. The heat exchange system of claim 1 or 2, wherein:
the compressor further comprises an enthalpy increasing device, the enthalpy increasing device is mounted on the shell, and the enthalpy increasing device can be communicated with the flash evaporator, the first stopping device and the first air suction port respectively.
4. The heat exchange system of claim 3, wherein:
the enthalpy increasing device comprises:
the first shell is internally provided with a first accommodating cavity;
the first air suction pipe is communicated with the flash evaporator and the first accommodating cavity;
the second air suction pipe is communicated with the first cut-off device and the first accommodating cavity;
a first exhaust duct communicating the first intake port and the first receiving chamber.
5. The heat exchange system of claim 4, wherein:
in the vertical direction, a first horizontal height of a third air outlet of the first air suction pipe is smaller than a second horizontal height of a third air suction port of the first air discharge pipe, and a third horizontal height of a fourth air outlet of the second air suction pipe is between the first horizontal height and the second horizontal height.
6. The heat exchange system of claim 1 or 2, wherein:
the flash evaporator includes:
a second housing having a second receiving chamber;
the fifth air suction pipe is communicated with the second accommodating cavity and the first throttling device;
a fourth exhaust pipe communicating the second accommodating chamber and the evaporator;
a fifth exhaust pipe that communicates the second accommodating chamber and the third shut-off device.
7. The heat exchange system of claim 6, wherein:
in the vertical direction, a fourth horizontal height of a fifth air outlet of the fifth air suction pipe is greater than a fifth horizontal height of a fifth air suction port of the fifth air exhaust pipe, and the fifth horizontal height is greater than a sixth horizontal height of a fourth air suction port of the fourth air exhaust pipe.
8. The heat exchange system of claim 1 or 2, wherein:
the heat exchange system also comprises a second throttling device which is connected between the flash evaporator and the evaporator in series.
9. The heat exchange system of claim 1 or 2, wherein:
in the compressor, in a first working mode, the first electronic valve, the first cut-off device and the third cut-off device are closed, the second electronic valve and the second cut-off device are opened, and the sliding vane is controlled to be kept still by the locking piece.
10. The heat exchange system of claim 1 or 2, wherein:
in a second working mode of the compressor, the second electronic valve and the first stopping device are closed, the first electronic valve, the second stopping device and the third stopping device are opened, the sliding limit of the sliding vane is released by the locking piece, and the first compression cylinder and the second compression cylinder are both used as primary compression cylinders.
11. The heat exchange system of claim 1 or 2, wherein:
in a third operating mode of the compressor, the second electronic valve and the second stopping device are closed, the first electronic valve, the first stopping device and the third stopping device are opened, the sliding limit of the sliding vane is released by the locking piece, the second compression cylinder serves as a primary compression cylinder, and the second compression cylinder serves as a secondary compression cylinder.
12. The heat exchange system of claim 1 or 2, wherein:
the first throttling device is a capillary tube or an electronic expansion valve.
13. The heat exchange system of claim 1 or 2, wherein:
at least one of the first, second, and third cut-off devices is a cut-off valve.
14. The heat exchange system of claim 1 or 2, wherein:
the first electronic valve is an electromagnetic valve or an electric valve;
the second electronic valve is an electromagnetic valve or an electric valve.
15. An air conditioner comprising the heat exchange system of any one of claims 1 to 14.
CN202010335589.6A 2020-04-24 2020-04-24 Compressor, heat exchange system and air conditioner Active CN111502993B (en)

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CN103486032A (en) * 2012-06-14 2014-01-01 珠海格力节能环保制冷技术研究中心有限公司 Two-stage variable capacity compressor and air conditioner
CN103727034A (en) * 2012-10-12 2014-04-16 珠海格力节能环保制冷技术研究中心有限公司 Compressor
CN103850939A (en) * 2012-11-30 2014-06-11 珠海格力节能环保制冷技术研究中心有限公司 Compressor and refrigeration system provided with same
CN103867441A (en) * 2014-03-19 2014-06-18 安徽美芝精密制造有限公司 Double-stage compressor
CN105221421A (en) * 2014-06-09 2016-01-06 珠海格力节能环保制冷技术研究中心有限公司 Compressor and air conditioner
CN105545742A (en) * 2016-02-24 2016-05-04 珠海格力节能环保制冷技术研究中心有限公司 Multi-cylinder two-stage variable-capacity compressor system and control method of switching of running modes thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103486032A (en) * 2012-06-14 2014-01-01 珠海格力节能环保制冷技术研究中心有限公司 Two-stage variable capacity compressor and air conditioner
CN103727034A (en) * 2012-10-12 2014-04-16 珠海格力节能环保制冷技术研究中心有限公司 Compressor
CN103850939A (en) * 2012-11-30 2014-06-11 珠海格力节能环保制冷技术研究中心有限公司 Compressor and refrigeration system provided with same
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