CN110966197A - Compressor assembly, air conditioner and control method - Google Patents
Compressor assembly, air conditioner and control method Download PDFInfo
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- CN110966197A CN110966197A CN201911121868.6A CN201911121868A CN110966197A CN 110966197 A CN110966197 A CN 110966197A CN 201911121868 A CN201911121868 A CN 201911121868A CN 110966197 A CN110966197 A CN 110966197A
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- compressor
- heat exchange
- exchange cavity
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
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- 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
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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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a compressor assembly, an air conditioner and a control method, wherein the compressor assembly comprises: the compressor shell (9) and the gas-liquid separator (3), wherein the gas-liquid separator (3) is communicated with external air inlet and is communicated with the interior of the compressor shell (9) through a first outlet pipe (32); the mixed heat exchange cavity (5) is arranged outside the compressor shell (9) and can exchange heat with the compressor shell (9), the mixed heat exchange cavity (5) can be communicated with the first inlet pipe (31) through the second inlet pipe (6) and can be communicated with the gas-liquid separator (3) or the first outlet pipe (32) through the second outlet pipe (1). The refrigerant before entering the gas-liquid separator enters the mixed heat exchange cavity to be heated and then is guided into the shell of the compressor to be compressed, so that the suction superheat degree of the compressor is effectively improved, the condition that the suction gas of the compressor carries liquid is prevented, liquid impact is prevented, and the reliability and the safety of the operation of the compressor are guaranteed.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a compressor assembly, an air conditioner and a control method.
Background
When the rotor compressor operates at a light load and a low frequency, because a refrigerating/heating load is small, the incomplete evaporation of an evaporator is easily caused, a refrigerant coming out of the evaporator is in a gas-liquid two-phase state, when a gas-liquid mixed refrigerant enters a cylinder of the compressor, liquid impact is easily caused, and the damage of the liquid impact to the compressor is very large: firstly, make compressor power increase, cause wearing and tearing easily, it is very unfavorable to compressor reliability, secondly probably lead to roller and gleitbretter to break away from, cause gleitbretter and roller striking formation abnormal noise and air conditioner package cotton also can't weaken, seriously influence air conditioner noise quality, thirdly the roller breaks away from with the gleitbretter and can lead to serious internal leakage, makes compressor refrigerating output greatly reduced.
The rotor compressor gas-liquid separator mainly has the function of separating liquid-phase refrigerant from gas-phase refrigerant, and prevents liquid impact caused by suction in the working process of the compressor, so that parts of a pump body of the compressor are prevented from being damaged. However, a large number of experiments show that the liquid separator cannot completely separate liquid from liquid and that there is a risk of liquid slugging when the amount of liquid is large. How to solve the rotor compressor suction belt liquid is a key problem of improving the performance and the reliability of the rotor compressor.
The compressor in the prior art has the technical problems of liquid slugging and the like due to the fact that the compressor in the prior art has the suction belt liquid, and therefore the invention researches and designs the compressor assembly, the air conditioner and the control method.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the compressor in the prior art has a suction belt liquid, which results in a risk of liquid impact easily, so as to provide a compressor assembly, an air conditioner and a control method.
The present invention provides a compressor assembly comprising:
the gas-liquid separator is communicated with external air inlet through a first inlet pipe and communicated with the interior of the compressor shell through the first outlet pipe;
the heat exchanger comprises a compressor shell and is characterized by further comprising a mixing heat exchange cavity, wherein the mixing heat exchange cavity is arranged outside the compressor shell and can exchange heat with the compressor shell, the mixing heat exchange cavity can be communicated with the first inlet pipe through a second inlet pipe so as to suck fluid from the first inlet pipe, and can be communicated with the gas-liquid separator or the first outlet pipe through a second outlet pipe so as to guide the fluid in the mixing heat exchange cavity into the gas-liquid separator or the first outlet pipe.
Preferably, the first and second electrodes are formed of a metal,
the mixed heat exchange cavity is of a cavity structure formed by surrounding of an annular cylindrical shell, and the annular cylindrical shell is welded on the periphery of the compressor shell.
Preferably, the first and second electrodes are formed of a metal,
the compressor shell is internally provided with a motor assembly, and the mixed heat exchange cavity is arranged corresponding to the motor assembly.
Preferably, the first and second electrodes are formed of a metal,
and the mixing heat exchange cavity is also provided with a heating component.
Preferably, the first and second electrodes are formed of a metal,
the heating component is a resistance heating component; and/or when the mixing heat exchange cavity is of a cavity structure surrounded by an annular cylindrical shell, the heating component is arranged on the inner wall or the outer wall of the annular cylindrical shell.
Preferably, the first and second electrodes are formed of a metal,
the second inlet pipe is also provided with a control valve, and/or the second outlet pipe is provided with a one-way flow valve which only allows fluid to flow from the mixed heat exchange cavity to the gas-liquid separator or the first outlet pipe.
Preferably, the first and second electrodes are formed of a metal,
an exhaust pipe is further connected to an exhaust port of the compressor shell, and a pressure sensor and a temperature sensor are arranged on the exhaust pipe; the compressor assembly further comprises a controller, the pressure sensor and the temperature sensor are electrically connected with the controller respectively, and the controller is further electrically connected with the control valve.
The invention also provides an air conditioner comprising the compressor assembly of any one of the preceding claims.
The invention also provides a control method of the compressor assembly, which uses the compressor assembly in any one of the preceding aspects, controls whether the mixed heat exchange cavity enters fluid for heat exchange according to the exhaust superheat degree of the compressor, and improves the suction superheat degree of the compressor.
Preferably, the first and second electrodes are formed of a metal,
when the second inlet pipe is also provided with a control valve, the shell of the compressor is also provided with an exhaust pipe, and the exhaust pipe is provided with a pressure sensor and a temperature sensor; the compressor assembly further comprises a controller, the pressure sensor and the temperature sensor are respectively electrically connected with the controller, and when the controller is further electrically connected with the control valve:
when the detected and calculated exhaust superheat degree is smaller than a set value, the controller controls the control valve to be opened, and fluid enters the mixed heat exchange cavity from the first inlet pipe through the second inlet pipe;
and when the detected and calculated exhaust superheat degree is larger than a set value, the controller controls the control valve to be closed, and fluid cannot enter the mixed heat exchange cavity from the first inlet pipe through the second inlet pipe.
Preferably, the first and second electrodes are formed of a metal,
when the mixed heat exchange cavity is also provided with a heating part and when the detected and calculated exhaust superheat degree is smaller than a set value, the controller also controls the heating part to be opened; and when the calculated exhaust superheat degree is detected to be larger than a set value, the controller also controls the heating component to be closed.
The compressor assembly, the air conditioner and the control method provided by the invention have the following beneficial effects:
1. according to the invention, the mixed heat exchange cavity capable of exchanging heat with the compressor shell is arranged outside the compressor shell and is communicated with the first inlet pipe of the gas-liquid separator through the second inlet pipe, so that a refrigerant before entering the gas-liquid separator enters the mixed heat exchange cavity to be heated, and the heated refrigerant is led into the compressor shell through the second outlet pipe to be compressed, thus the suction superheat degree of the compressor can be effectively improved, the condition that the compressor sucks gas and carries liquid is effectively prevented, liquid impact is prevented, and the reliability and safety of the operation of the compressor are ensured; mechanical noise generated by the separation of the sliding sheet and the roller can be effectively prevented, the condition of refrigerant leakage caused by the separation of the sliding sheet is also effectively prevented, and the normal refrigerating capacity and the refrigerating effect of the compressor are ensured;
2. the invention also has the structural form that the mixing heat exchange cavity is also provided with the heating part, so that on the basis of heating the refrigerant by utilizing the heat of the shell of the compressor, the heating effect on the refrigerant is further effectively enhanced, the suction superheat degree of the refrigerant is improved, the suction entrainment of liquid of the compressor is further prevented, and the liquid impact is avoided; the invention also can effectively detect the exhaust superheat degree through the control valve, the one-way valve, the temperature sensor and the pressure sensor which are arranged at the exhaust pipe of the compressor, and further controls whether the refrigerant before entering the gas-liquid separator is heated or not by feeding back the suction superheat degree through the exhaust superheat degree, and controls the refrigerant to automatically enter the mixed heat exchange cavity to be heated when the liquid impact risk exists, so that the gas absorption and liquid entrainment are avoided, and controls the passage of the refrigerant entering the mixed heat exchange cavity to be closed when the liquid impact risk does not exist, so that the normal work and operation of the compressor are ensured, and the intelligent control is realized.
Drawings
FIG. 1 is an overall cross-sectional block diagram of the compressor assembly of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
fig. 3 is a schematic structural view of an air conditioning system having the compressor assembly of the present invention.
The reference numbers in the figures denote:
1. a second outlet pipe; 2. a one-way flow valve; 3. a gas-liquid separator; 31. a first inlet pipe; 32. a first outlet pipe; 4. a heating member; 5. a mixing heat exchange cavity; 51. an annular cylindrical housing; 6. a second inlet pipe; 7. a control valve; 8. an upper cover assembly; 9. a compressor housing; 91. an exhaust pipe; 10. a stator assembly; 11. a rotor assembly; 100. a motor assembly; 12. a muffler; 13. an upper flange assembly; 14. a cylinder; 15. a roller; 16. a lower flange; 17. a crankshaft; 18. a lower cover; 19. mounting a plate; 20. a temperature sensor; 21. a pressure sensor.
Detailed Description
As shown in fig. 1-3, the present invention provides a compressor assembly comprising:
the gas-liquid separator 3 is communicated with external air inlet through a first inlet pipe 31, and communicated with the interior of the compressor shell 9 through a first outlet pipe 32;
the heat exchanger further comprises a mixing heat exchange cavity 5, the mixing heat exchange cavity 5 is arranged outside the compressor shell 9 and can exchange heat with the compressor shell 9, the mixing heat exchange cavity 5 can be communicated with the first inlet pipe 31 through a second inlet pipe 6 so as to suck fluid from the first inlet pipe 31, and can be communicated with the gas-liquid separator 3 or the first outlet pipe 32 through a second outlet pipe 1 so as to guide the fluid in the mixing heat exchange cavity 5 to the gas-liquid separator 3 or the first outlet pipe 32.
According to the invention, the mixed heat exchange cavity capable of exchanging heat with the compressor shell is arranged outside the compressor shell and is communicated with the first inlet pipe of the gas-liquid separator through the second inlet pipe, so that a refrigerant before entering the gas-liquid separator enters the mixed heat exchange cavity to be heated, and the heated refrigerant is led into the compressor shell through the second outlet pipe to be compressed, thus the suction superheat degree of the compressor can be effectively improved, the condition that the compressor sucks gas and carries liquid is effectively prevented, liquid impact is prevented, and the reliability and safety of the operation of the compressor are ensured; and can also prevent the gleitbretter from breaking away from and producing the mechanical noise with the roller effectively, still prevented effectively because the gleitbretter breaks away from the condition that has caused the refrigerant to leak, guarantee the normal refrigerating output of compressor and refrigeration effect.
The invention discloses a rotor compressor and an air conditioning system thereof, and as shown in figure 3, a mixed heat exchange cavity is innovatively designed at the corresponding assembly position of a shell component motor of the compressor. By monitoring the exhaust superheat degree of the compressor, when the exhaust superheat degree is smaller than a set value, the electric valve (the control valve 7) is opened, and the flow of the refrigerant is controlled by controlling the opening degree of a valve core of the electric valve (the suction liquid carrying ratio is severe when the suction superheat degree of the compressor is low, and the exhaust superheat degree of the compressor is reduced at the moment); the refrigerant can get into the mixed heat exchange cavity from the upper cylinder connecting pipe (the second inlet pipe 6), (this refrigerant is the refrigerant that breathes in for what the breathing pipe shunts out here) mixed heat exchange intracavity design resistance heater (heater block 4), can heat mixed heat exchange cavity when the exhaust superheat degree is less than the setting value, improve mixed heat exchange cavity temperature, the heat that the motor gived off when the compressor operation simultaneously also can be absorbed by mixed heat exchange cavity, further improve mixed heat exchange cavity temperature, refrigerant gas absorbs heat in mixed heat exchange cavity and improves the degree of superheat of breathing in, refrigerant gas after the overheat gets into the knockout cavity through middle cylinder connecting pipe, mix in the knockout cavity with the refrigerant that the knockout entering breathing pipe gets into, the heat transfer, improve the degree of superheat of breathing in of the compressor pump body suction refrigerant. According to the refrigeration cycle principle, after the suction superheat degree is increased, the exhaust temperature is increased, when the exhaust superheat degree is larger than a set value, the electric valve is closed, the resistance heater stops heating, the suction self-balance is realized through the circulation, the risk of liquid impact of the compressor is reduced, the sliding sheet is prevented from being separated from the roller to generate mechanical noise, and the performance and the reliability of the compressor are improved.
Preferably, the first and second electrodes are formed of a metal,
the mixed heat exchange cavity 5 is a cavity structure surrounded by an annular cylindrical shell 51, and the annular cylindrical shell is welded on the periphery of the compressor shell 9. The annular cylindrical shell is welded on the periphery of the shell of the compressor (namely, the annular cylindrical shell is sleeved on the periphery of the shell of the compressor), so that the sealed mixed heat exchange cavity can be effectively formed between the annular cylindrical shell and the outer wall of the shell of the compressor, and a refrigerant can enter the mixed heat exchange cavity to be heated and can be effectively led out.
Mix heat transfer chamber 5 and compressor housing 9 of compressor and be connected through the welded mode, mix heat transfer chamber 5 and include barrel connecting pipe (second inlet pipe 6), middle barrel connecting pipe (second exit tube 1) and resistance heater (heater block 4), design motorised valve (control valve 7) on last barrel connecting pipe, design one-way circulation valve 2 on the middle barrel connecting pipe, gaseous can only follow and mix heat transfer chamber inflow knockout and can not flow back, the welded mode is all adopted with being connected of each spare part to the barrel connecting pipe, heater block 4 passes through power supply lead and is connected with the air conditioner control panel.
Preferably, the first and second electrodes are formed of a metal,
the compressor shell 9 is internally provided with a motor assembly 100, and the mixed heat exchange cavity 5 is arranged corresponding to the motor assembly 100. Through setting up the heat transfer chamber that mixes in the position relative with motor element, because motor element during operation calorific capacity is great relatively, consequently set up in this position and can make the refrigerant absorb more heat to be used for cooling down the heat dissipation to motor element, further improve and breathe in the superheat degree.
Preferably, the first and second electrodes are formed of a metal,
the mixing heat exchange cavity 5 is also provided with a heating component 4. The invention further effectively enhances the heating effect of the refrigerant, improves the suction superheat degree of the refrigerant, further prevents the liquid from being sucked by the compressor and avoids liquid impact on the basis of heating the refrigerant by utilizing the heat of the compressor shell through the structural form that the mixing heat exchange cavity is also provided with the heating part.
Preferably, the first and second electrodes are formed of a metal,
the heating part 4 is a resistance heating part; and/or when the mixing heat exchange cavity 5 is a cavity structure enclosed by an annular cylindrical shell, the heating component 4 is arranged on the inner wall or the outer wall of the annular cylindrical shell. The heating element is preferably arranged on the inner wall or the outer wall of the annular cylindrical shell, can play a role of heating the refrigerant, and is preferably arranged on the inner wall so as to be directly contacted with the refrigerant, thereby improving the heating effect.
Preferably, the first and second electrodes are formed of a metal,
the second inlet pipe 6 is further provided with a control valve 7 (preferably an electric valve), and/or the second outlet pipe 1 is provided with a one-way flow valve 2 which can only allow fluid to flow from the mixing heat exchange cavity 5 to the gas-liquid separator 3 or to the first outlet pipe 32. Through the control valve, check valve and temperature sensor and the pressure sensor of setting in compressor blast pipe department, can detect out the exhaust superheat degree effectively, and then whether control is heated the refrigerant before getting into vapour and liquid separator through the size of exhaust superheat degree feedback inspiration superheat degree, and control the refrigerant and get into mixing heat transfer chamber in the automation and be heated when having the liquid impact risk, avoid taking place to inhale the gas and take liquid, and the passageway of the refrigerant that the control got into mixing heat transfer chamber when no liquid impact risk is closed, guarantee compressor normal work and operation, realize intelligent control.
The specific suction heating compressor finally forms a mixing, heat exchange and liquid separation cavity structure as shown in fig. 2, a compressor shell assembly and a mixing heat exchange cavity outer shell form a mixing heat exchange cavity, the mixing heat exchange cavity is communicated with a liquid distributor cavity through an intermediate cylinder connecting pipe, a one-way circulation valve is designed on the intermediate cylinder connecting pipe, only refrigerant gas is allowed to flow into the liquid distributor cavity from the mixing heat exchange cavity, and the refrigerant is not allowed to flow back.
The refrigerant entering the mixing heat exchange cavity from the electric valve is connected by a copper pipe, the diameter of the copper pipe is phi 4-phi 8, the copper pipe is determined according to the discharge capacity, and the pipe diameter is increased along with the increase of the discharge capacity.
Preferably, the first and second electrodes are formed of a metal,
the compressor shell 9 is also provided with a gas exhaust pipe 91, and a pressure sensor 21 and a temperature sensor 20 are arranged at the gas exhaust pipe 91; the compressor assembly further comprises a controller, wherein the pressure sensor 21 and the temperature sensor 20 are respectively electrically connected with the controller, and the controller is further electrically connected with the control valve 7. Through the control valve, check valve and temperature sensor and the pressure sensor of setting in compressor blast pipe department, can detect out the exhaust superheat degree effectively, and then whether control is heated the refrigerant before getting into vapour and liquid separator through the size of exhaust superheat degree feedback inspiration superheat degree, and control the refrigerant and get into mixing heat transfer chamber in the automation and be heated when having the liquid impact risk, avoid taking place to inhale the gas and take liquid, and the passageway of the refrigerant that the control got into mixing heat transfer chamber when no liquid impact risk is closed, guarantee compressor normal work and operation, realize intelligent control.
The invention also provides an air conditioner comprising the compressor assembly of any one of the preceding claims. According to the invention, the mixed heat exchange cavity capable of exchanging heat with the compressor shell is arranged outside the compressor shell and is communicated with the first inlet pipe of the gas-liquid separator through the second inlet pipe, so that a refrigerant before entering the gas-liquid separator enters the mixed heat exchange cavity to be heated, and the heated refrigerant is led into the compressor shell through the second outlet pipe to be compressed, thus the suction superheat degree of the compressor can be effectively improved, the condition that the compressor sucks gas and carries liquid is effectively prevented, liquid impact is prevented, and the reliability and safety of the operation of the compressor are ensured; and can also prevent the gleitbretter from breaking away from and producing the mechanical noise with the roller effectively, still prevented effectively because the gleitbretter breaks away from the condition that has caused the refrigerant to leak, guarantee the normal refrigerating output of compressor and refrigeration effect.
The invention also provides a control method of the compressor assembly, which uses the compressor assembly in any one of the preceding aspects, controls whether the mixed heat exchange cavity enters fluid for heat exchange according to the exhaust superheat degree of the compressor, and improves the suction superheat degree of the compressor. The invention controls whether to heat the refrigerant before entering the gas-liquid separator or not by feeding back the suction superheat degree through the exhaust superheat degree, controls the refrigerant to automatically enter the mixed heat exchange cavity to be heated when liquid impact risk exists, avoids gas suction and liquid entrainment, controls the passage of the refrigerant entering the mixed heat exchange cavity to be closed when liquid impact risk does not exist, ensures the normal work and operation of the compressor, and realizes intelligent control.
Preferably, the first and second electrodes are formed of a metal,
when the second inlet pipe 6 is also provided with a control valve 7, the exhaust port of the shell of the compressor is also connected with an exhaust pipe, and the exhaust pipe is provided with a pressure sensor and a temperature sensor; the compressor assembly further comprises a controller, the pressure sensor and the temperature sensor are respectively electrically connected with the controller, and when the controller is further electrically connected with the control valve 7:
when the detected and calculated exhaust superheat degree is smaller than a set value, the controller controls the control valve to be opened, and fluid enters the mixed heat exchange cavity from the first inlet pipe through the second inlet pipe;
and when the detected and calculated exhaust superheat degree is larger than a set value, the controller controls the control valve to be closed, and fluid cannot enter the mixed heat exchange cavity from the first inlet pipe through the second inlet pipe.
The invention controls the opening and closing of the control valve through detecting and calculating the relationship between the exhaust superheat degree and the set value, can realize that the flow channel of the mixed heat exchange cavity is not opened when the exhaust superheat degree is large, the flow channel of the mixed heat exchange cavity is opened when the superheat degree is small, the suction liquid carrying ratio is serious when the suction superheat degree of the compressor is low, the exhaust superheat degree of the compressor is reduced, the suction reflux phenomenon exists when the compressor works, the suction superheat degree of the general compressor is difficult to monitor, so the suction superheat degree can be reflected indirectly by monitoring the exhaust superheat degree, the mixed heat exchange cavity is effectively and intelligently controlled, the purpose of improving the suction superheat degree is achieved, and the suction liquid carrying is prevented.
Preferably, the first and second electrodes are formed of a metal,
when the mixed heat exchange cavity 5 is also provided with a heating component 4 and when the detected and calculated exhaust superheat degree is smaller than a set value, the controller also controls the heating component to be opened; and when the calculated exhaust superheat degree is detected to be larger than a set value, the controller also controls the heating component to be closed. This is a further preferable control method of the present invention, and the heating member is turned on when the degree of superheat of intake air needs to be increased, and turned off when the degree of superheat of intake air does not need to be increased, by the configuration of the heating member, thereby achieving the object of intelligently increasing the degree of superheat of intake air.
The specific implementation principle of the invention is as follows:
① feeds back a signal to a variable frequency driver, the variable frequency driver feeds back the signal to an electric valve and an electric resistance heater, the electric valve is opened and the electric resistance heater is heated, a part of gas-liquid mixed refrigerant enters a mixed heat exchange cavity from an upper cylinder connecting pipe, absorbs heat radiated by the electric resistance heater in the mixed heat exchange cavity, the refrigerant in a gas-liquid two-phase state is gasified, and the refrigerant has a certain superheat degree, and ② on the other hand, the electric motor always heats up in the running process of the compressor, so that gas-liquid mixed refrigerant in the mixed heat exchange cavity can also absorb heat radiated by the electric motor, the refrigerant in the gas-liquid mixed refrigerant can further improve the heat radiation of the electric motor, and the refrigerant in the mixed heat exchange cavity has higher superheat degree;
③ the refrigerant gas with a certain superheat degree in the mixed heat exchange cavity enters the liquid separator cavity through the middle cylinder connecting pipe, and mixes and exchanges heat with the refrigerant entering from the liquid separator suction straight pipe in the liquid separator cavity to improve the dryness and superheat degree of the refrigerant entering the compressor pump body, and the refrigerant vapor with a certain superheat degree in the ④ liquid separator cavity enters the cylinder through the liquid separator suction port and the cylinder suction port to be compressed and exhausted, so as to complete the refrigeration cycle.
The electrically operated valve can control the flow of the refrigerant entering the upper cylinder connecting pipe by adjusting the size of the valve core, so as to control the superheat degree of the refrigerant in the mixed heat exchange cavity and the liquid distributor cavity, after the suction superheat degree is improved, the exhaust temperature of the compressor can be raised by a refrigeration cycle principle, so as to improve the exhaust superheat degree of the compressor, and after the exhaust superheat degree is greater than a set value, the electrically operated valve is closed, the resistance heater stops heating, and the cycle is carried out, so that the self-balance is finally achieved.
Under normal conditions, because motorised valve, resistance heater are closed state, mix the heat transfer chamber and pass through middle barrel connecting pipe with the knockout cavity and be connected, when the motorised valve was closed, during the refrigerant gas in the knockout cavity can flow back to mixing the heat transfer chamber, reduce the compressor refrigerating output, for preventing this kind of unfavorable phenomenon, set up the check valve in middle barrel connecting pipe, only allow the refrigerant to flow into the knockout cavity from mixing the heat transfer chamber, do not allow the refluence.
To sum up, through motorised valve automatically regulated and set up the mixed heat transfer chamber on compressor housing assembly to set up resistance heater in the mixed heat transfer chamber, make and breathe in the self-balancing, and breathe in the superheat degree and have certain superheat degree, reduce the risk of compressor liquid impact, and then prevent that gleitbretter and roller from breaking away from, improve compressor performance and reliability.
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 (11)
1. A compressor assembly, characterized by: the method comprises the following steps:
the compressor comprises a compressor shell (9) and a gas-liquid separator (3), wherein the gas-liquid separator (3) is communicated with external air inlet through a first inlet pipe (31) and is communicated with the interior of the compressor shell (9) through a first outlet pipe (32);
the heat exchanger is characterized by further comprising a mixing heat exchange cavity (5), wherein the mixing heat exchange cavity (5) is arranged outside the compressor shell (9) and can exchange heat with the compressor shell (9), the mixing heat exchange cavity (5) can be communicated with the first inlet pipe (31) through a second inlet pipe (6) to suck fluid from the first inlet pipe (31), and can be communicated with the gas-liquid separator (3) or the first outlet pipe (32) through a second outlet pipe (1) to guide the fluid in the mixing heat exchange cavity (5) to the gas-liquid separator (3) or the first outlet pipe (32).
2. The compressor assembly of claim 1, wherein:
the mixed heat exchange cavity (5) is of a cavity structure enclosed by an annular cylindrical shell (51), and the annular cylindrical shell is welded on the periphery of the compressor shell (9).
3. The compressor assembly of claim 1, wherein:
the compressor is characterized in that a motor assembly (100) is arranged inside the compressor shell (9), and the mixed heat exchange cavity (5) is arranged corresponding to the motor assembly (100).
4. A compressor assembly according to any one of claims 1 to 3, wherein:
and the mixing heat exchange cavity (5) is also provided with a heating part (4).
5. The compressor assembly of claim 4, wherein:
the heating part (4) is a resistance heating part; and/or when the mixing heat exchange cavity (5) is a cavity structure surrounded by an annular cylindrical shell, the heating component (4) is arranged on the inner wall or the outer wall of the annular cylindrical shell.
6. The compressor assembly of any one of claims 1-5, wherein:
the second inlet pipe (6) is also provided with a control valve (7), and/or the second outlet pipe (1) is provided with a one-way circulation valve (2) which can only allow fluid to flow from the mixed heat exchange cavity (5) to the gas-liquid separator (3) or the first outlet pipe (32).
7. The compressor assembly of claim 6, wherein:
an exhaust pipe (91) is further connected to an exhaust port of the compressor shell (9), and a pressure sensor (21) and a temperature sensor (20) are arranged on the exhaust pipe (91); the compressor assembly further comprises a controller, the pressure sensor and the temperature sensor are electrically connected with the controller respectively, and the controller is further electrically connected with the control valve (7).
8. An air conditioner, characterized in that: comprising a compressor assembly according to any one of claims 1 to 7.
9. A method of controlling a compressor assembly, comprising: the compressor assembly according to any one of claims 1 to 7 is used for controlling whether the mixed heat exchange cavity enters fluid for heat exchange according to the exhaust superheat degree of the compressor, so that the suction superheat degree of the compressor is improved.
10. The control method according to claim 9, characterized in that:
when the second inlet pipe (6) is also provided with a control valve (7), an exhaust port of the compressor shell (9) is also connected with an exhaust pipe (91), and the exhaust pipe (91) is provided with a pressure sensor and a temperature sensor; the compressor assembly further comprises a controller, wherein the pressure sensor and the temperature sensor are electrically connected with the controller respectively, and when the controller is further electrically connected with the control valve (7):
when the detected and calculated exhaust superheat degree is smaller than a set value, the controller controls the control valve to be opened, and fluid enters the mixed heat exchange cavity from the first inlet pipe through the second inlet pipe;
and when the detected and calculated exhaust superheat degree is larger than a set value, the controller controls the control valve to be closed, and fluid cannot enter the mixed heat exchange cavity from the first inlet pipe through the second inlet pipe.
11. The control method according to claim 10, characterized in that:
when the mixed heat exchange cavity (5) is further provided with a heating component (4), and when the detected and calculated exhaust superheat degree is smaller than a set value, the controller further controls the heating component to be opened; and when the calculated exhaust superheat degree is detected to be larger than a set value, the controller also controls the heating component to be closed.
Priority Applications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790506A (en) * | 2021-09-16 | 2021-12-14 | 珠海格力电器股份有限公司 | Method for solving noise of air conditioner outdoor unit |
| CN115573907A (en) * | 2022-09-22 | 2023-01-06 | 郑州凌达压缩机有限公司 | Liquid impact prevention compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193676A (en) * | 2000-01-14 | 2001-07-17 | Hitachi Ltd | Hermetically sealed scroll compressor |
| CN201032315Y (en) * | 2007-05-16 | 2008-03-05 | 苏州昆拓冷机有限公司 | Gas-liquid separator of compressive refrigeration system |
| CN201215090Y (en) * | 2008-04-14 | 2009-04-01 | 王荣华 | Novel structure for cooling rotary type totally-enclosed compressor |
| CN109026704A (en) * | 2018-09-13 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air-conditioning system |
| CN209165863U (en) * | 2018-12-17 | 2019-07-26 | 圣春新能源科技有限公司 | A kind of compressor heat exchange type gas-liquid separator |
-
2019
- 2019-11-15 CN CN201911121868.6A patent/CN110966197A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193676A (en) * | 2000-01-14 | 2001-07-17 | Hitachi Ltd | Hermetically sealed scroll compressor |
| CN201032315Y (en) * | 2007-05-16 | 2008-03-05 | 苏州昆拓冷机有限公司 | Gas-liquid separator of compressive refrigeration system |
| CN201215090Y (en) * | 2008-04-14 | 2009-04-01 | 王荣华 | Novel structure for cooling rotary type totally-enclosed compressor |
| CN109026704A (en) * | 2018-09-13 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air-conditioning system |
| CN209165863U (en) * | 2018-12-17 | 2019-07-26 | 圣春新能源科技有限公司 | A kind of compressor heat exchange type gas-liquid separator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790506A (en) * | 2021-09-16 | 2021-12-14 | 珠海格力电器股份有限公司 | Method for solving noise of air conditioner outdoor unit |
| CN115573907A (en) * | 2022-09-22 | 2023-01-06 | 郑州凌达压缩机有限公司 | Liquid impact prevention compressor |
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