CN104456840B - Air injection enthalpy-increasing type air-conditioning and its control method - Google Patents
Air injection enthalpy-increasing type air-conditioning and its control method Download PDFInfo
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- CN104456840B CN104456840B CN201410649687.1A CN201410649687A CN104456840B CN 104456840 B CN104456840 B CN 104456840B CN 201410649687 A CN201410649687 A CN 201410649687A CN 104456840 B CN104456840 B CN 104456840B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air injection enthalpy-increasing type air-conditioning, the air injection enthalpy-increasing type air-conditioning includes compressor, four-way valve, outdoor heat exchanger, flash vessel, indoor heat exchanger, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve；One end of 3rd magnetic valve is connected with the bottom interface of the outdoor heat exchanger under heating mode or outlet, the other end of the 3rd magnetic valve is connected with one end of the second magnetic valve, and the other end of second magnetic valve is connected with one end of first magnetic valve.The invention also discloses a kind of control method of air injection enthalpy-increasing type air-conditioning.Air injection enthalpy-increasing type air-conditioning of the invention can make the rich refrigeration oil refrigerant of outdoor heat exchanger enter compressor by the 3rd magnetic valve, the second magnetic valve and the first magnetic valve, reduce at a temperature of low temperature environment stockpiling for refrigeration oil in the air-conditioning heating circulatory system, compressor can be not only lubricated, and improve the heating efficiency of air-conditioning.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to air injection enthalpy-increasing type air-conditioning and its control method.
Background technology
Existing air injection enthalpy-increasing type air-conditioning generally comprises compressor, four-way valve, outdoor heat exchanger, flash vessel, indoor heat exchange
Device, first magnetic valve etc..At a temperature of low temperature environment, with the decline of outdoor environment temperature, in the air-conditioning heating circulatory system
Refrigeration oil stickiness increases, solubility reduction, causes a large amount of refrigeration oils to be accumulated in the air-conditioning heating circulatory system, so as to influence air-conditioning
Heating performance.In addition, refrigeration oil is accumulated in the air-conditioning heating circulatory system lubricant effect that also have impact on compressor.
The content of the invention
It is a primary object of the present invention to provide a kind of air injection enthalpy-increasing type air-conditioning and its control method, it is intended to solve existing spray
At a temperature of low temperature environment, refrigeration oil is accumulated in the technical problem in the air-conditioning heating circulatory system to gas increasing enthalpy type air-conditioning.
To achieve the above object, the invention provides a kind of air injection enthalpy-increasing type air-conditioning, including：Compressor, four-way valve, outdoor
Heat exchanger, flash vessel, indoor heat exchanger, the first magnetic valve, the air injection enthalpy-increasing type air-conditioning also include the second magnetic valve, the 3rd electricity
Magnet valve；One end of 3rd magnetic valve is connected with the bottom interface of the outdoor heat exchanger under heating mode or outlet, institute
The other end for stating the 3rd magnetic valve is connected with one end of the second magnetic valve, the other end of second magnetic valve and described first electricity
One end connection of magnet valve.
Preferably, one end being connected with the 3rd magnetic valve of second magnetic valve also with heating mode under the interior
Entrance or middle part the interface connection of heat exchanger.
Preferably, the air injection enthalpy-increasing type air-conditioning also includes controller, and the controller is used for：According to outdoor environment temperature
Send the switch controlling signal of the first magnetic valve, the second magnetic valve and the 3rd magnetic valve.
Preferably, the air injection enthalpy-increasing type air-conditioning also includes controller, and the controller is used for：When outdoor environment temperature is small
In the first preset temperature threshold value, according to the outdoor environment temperature corresponding electromagnetic valve switch cycle time, the second electromagnetism is controlled
Valve and the 3rd magnetic valve are periodically opened and closed, until outdoor environment temperature is more than or equal to the first preset temperature threshold value.
Additionally, to achieve the above object, present invention also offers a kind of air injection enthalpy-increasing type air-conditioning, including：Compressor, four-way
Valve, outdoor heat exchanger, flash vessel, indoor heat exchanger, the first magnetic valve, the air injection enthalpy-increasing type air-conditioning also include the second electromagnetism
Valve；One end of second magnetic valve is connected with the middle part interface of the indoor heat exchanger, the other end of second magnetic valve
One end with first magnetic valve is connected.
Preferably, the air injection enthalpy-increasing type air-conditioning also includes controller, and the controller is used for：According to outdoor environment temperature
Send the first magnetic valve, the switch controlling signal of the second magnetic valve.
Preferably, the air injection enthalpy-increasing type air-conditioning also includes controller, and the controller is used for：When outdoor environment temperature is small
In the second preset temperature threshold value, according to the outdoor environment temperature corresponding electromagnetic valve switch cycle time, the second electromagnetism is controlled
Valve is periodically opened and closed, until outdoor environment temperature is more than or equal to the second preset temperature threshold value.
Additionally, to achieve the above object, present invention also offers a kind of control method of air injection enthalpy-increasing type air-conditioning, the spray
The control method of gas increasing enthalpy type air-conditioning is comprised the following steps：
In low-temperature heating, outdoor environment temperature is detected；
When the outdoor environment temperature value is less than the first preset temperature threshold value, first magnetic valve, the second electromagnetism are controlled
Valve and the 3rd magnetic valve are opened, and the outdoor heat exchanger is connected with the compressor.
Preferably, the control method of the air injection enthalpy-increasing type air-conditioning also includes：According to the electricity of outdoor environment temperature control second
The switch periods time of magnet valve and the 3rd magnetic valve.
Additionally, to achieve the above object, present invention also offers a kind of control method of air injection enthalpy-increasing type air-conditioning, the spray
The control method of gas increasing enthalpy type air-conditioning is comprised the following steps：
In low-temperature heating, outdoor environment temperature is detected；
When the outdoor environment temperature value is less than the second preset temperature threshold value, first magnetic valve and the second electromagnetism are controlled
Valve is opened, and the indoor heat exchanger is connected with the compressor.
Preferably, the control method of the air injection enthalpy-increasing type air-conditioning also includes：According to the electricity of outdoor environment temperature control second
The switch periods time of magnet valve.
The air injection enthalpy-increasing type air-conditioning that the present invention is provided, including the second magnetic valve, the 3rd magnetic valve；3rd magnetic valve
The bottom interface of one end and the outdoor heat exchanger under heating mode or outlet be connecteds, the other end of the 3rd magnetic valve and
One end connection of the second magnetic valve, the other end of second magnetic valve is connected with one end of first magnetic valve.The present invention
Air injection enthalpy-increasing type air-conditioning can make the rich refrigeration oil refrigerant of outdoor heat exchanger by the 3rd magnetic valve, the second magnetic valve and the
One magnetic valve enters compressor, reduces at a temperature of low temperature environment stockpiling for refrigeration oil in the air-conditioning heating circulatory system, not only can be with
Compressor is lubricated, and improves the heating efficiency of air-conditioning.
Brief description of the drawings
Fig. 1 is the structural representation of air injection enthalpy-increasing type air-conditioning first embodiment of the present invention；
Fig. 2 is refrigerant flow direction figure when air injection enthalpy-increasing type air-conditioning first embodiment of the present invention is heated；
Fig. 3 is the structural representation of air injection enthalpy-increasing type air-conditioning second embodiment of the present invention；
Fig. 4 is the structural representation of air injection enthalpy-increasing type air-conditioning 3rd embodiment of the present invention；
Fig. 5 is the structural representation of air injection enthalpy-increasing type air-conditioning fourth embodiment of the present invention；
Fig. 6 is the structural representation of the embodiment of air injection enthalpy-increasing type air-conditioning the 5th of the present invention；
Fig. 7 is the structural representation of air injection enthalpy-increasing type air-conditioning sixth embodiment of the present invention；
Fig. 8 is the structural representation of the embodiment of air injection enthalpy-increasing type air-conditioning the 7th of the present invention；
Fig. 9 is the schematic flow sheet of the control method first embodiment of air injection enthalpy-increasing type air-conditioning of the present invention；
Figure 10 is the schematic flow sheet of the control method second embodiment of air injection enthalpy-increasing type air-conditioning of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of air injection enthalpy-increasing type air-conditioning.Reference picture 1, Fig. 1 is real air injection enthalpy-increasing type air-conditioning of the present invention first
Apply the structural representation of example.
In the first embodiment, the air injection enthalpy-increasing type air-conditioning includes：Compressor 1, four-way valve 2, outdoor heat exchanger 3, interior
Heat exchanger 4, flash vessel 5, vapour liquid separator 6, the first electric expansion valve 7, the second electric expansion valve 8, the first stop valve 9, second
Stop valve 10, the first magnetic valve 11, the air injection enthalpy-increasing type air-conditioning also include the second magnetic valve 12, the 3rd magnetic valve 13.3rd electricity
One end of magnet valve 13 is connected with the bottom interface of outdoor heat exchanger 3, the other end of the 3rd magnetic valve 13 and the second magnetic valve 12
One end connects, and the other end of the second magnetic valve 12 is connected with one end of the first magnetic valve 11, the other end of the first magnetic valve 11 and
The gas supplementing opening connection of compressor 1.
2a mouthfuls of four-way valve 2 is connected with the exhaust outlet of compressor 1, and 2b mouthfuls of four-way valve 2 is changed with the outdoor under heating mode
The outlet connection of hot device 3,2c mouthfuls of four-way valve 2 is connected to the air entry of compressor 1,2d mouthfuls of four-way valve 2 through vapour liquid separator 6
It is connected with the entrance of the indoor heat exchanger 4 under heating mode by the first stop valve 9.
The outlet of the indoor heat exchanger 4 under heating mode is connected to sudden strain of a muscle through the second stop valve 10 and the second electric expansion valve 8
5a mouthfuls of steaming device 5,5b mouthfuls of flash vessel 5 is connected by the first magnetic valve 11 with the gas supplementing opening of compressor 1,5c mouthfuls of flash vessel 5
It is connected with the entrance of the outdoor heat exchanger 3 under heating mode by the first electric expansion valve 7.
In operation of air conditioner heating mode, the flow direction of refrigerant is as shown by the arrows in Figure 2.Refrigerant is compressed by compressor 1
Enter 2a mouthfuls of four-way valve 2 into high temperature and high pressure gas, and heat exchanger 4 got in by the first stop valve 9 from after 2d mouthfuls of outflow,
Heat exchange is completed in heat exchanger 4 indoors, from the condensed refrigerant liquid of indoor heat exchanger 4, through the He of the second stop valve 10
Second electric expansion valve 8 enters flash vessel 5, and the refrigerant from flash vessel 5 out is divided into two-way, and refrigerant vapour is from sudden strain of a muscle all the way
5b mouthfuls of steaming device 5 is entered in compressor 1 by the first magnetic valve 11；Another road refrigerant passes through first from 5c mouthfuls of flash vessel 5
Electric expansion valve 7 enters in outdoor heat exchanger 3, divides two-way again after carrying out heat exchange in outdoor heat exchanger 3, wherein freezing all the way
Agent enters compressor from the outlet of the outdoor heat exchanger 3 under heating mode through 2b mouthfuls, 2c mouthfuls of four-way valve 2 and vapour liquid separator 6
1；The refrigerant of another road richness refrigeration oil passes through the 3rd magnetic valve 13, the second magnetic valve 12 from the bottom interface of outdoor heat exchanger 3
Enter compressor 1 through the first magnetic valve 11 after mixing with the refrigerant of 5b mouthfuls of discharge of flash vessel 5.
The air injection enthalpy-increasing type air-conditioning that the present embodiment is provided, by by the bottom of one end of the 3rd magnetic valve and outdoor heat exchanger
Interface is connected, and the other end of the 3rd magnetic valve is connected with one end of the second magnetic valve, the other end of the second magnetic valve and first electric
One end connection of magnet valve, the other end of the first magnetic valve is connected with the gas supplementing opening of compressor.The rich freezing of outdoor heat exchanger can be made
Oily refrigerant enters compressor by the 3rd magnetic valve, the second magnetic valve and the first magnetic valve, reduces sky at a temperature of low temperature environment
Refrigeration oil is stockpiled in modulation heat circulating system, not only compressor can be lubricated, and improve the heating efficiency of air-conditioning.
Reference picture 3, Fig. 3 is the structural representation of air injection enthalpy-increasing type air-conditioning second embodiment of the present invention.
Based on first embodiment, in a second embodiment, one end and the outdoor under heating mode of the 3rd magnetic valve 13 are changed
The outlet connection of hot device 3.When outdoor environment temperature is further reduced, the freezing oil mass being accumulated in outdoor heat exchanger 3 increases
Plus, the bottom interface that rich refrigeration oil refrigerant in outdoor heat exchanger 3 can not efficiently from outdoor heat exchanger 3 is caused through the 3rd electricity
Magnet valve 13, the second magnetic valve 12 and the first magnetic valve 11 enter compressor 1.In the present embodiment, by one end of the 3rd magnetic valve 13
Outlet with the outdoor heat exchanger 3 under heating mode is connected.In operation of air conditioner heating mode, in the flow direction such as Fig. 3 of refrigerant
Shown in arrow, the outlet of rich refrigeration oil refrigerant from the outdoor heat exchanger 3 under heating mode in outdoor heat exchanger 3 is electric through the 3rd
Magnet valve 13, the second magnetic valve 12 and the first magnetic valve 11 enter compressor 1.It is right that the air injection enthalpy-increasing type air-conditioning of the present embodiment improves
The adaptability of low temperature environment.
Reference picture 4, Fig. 4 is the structural representation of air injection enthalpy-increasing type air-conditioning 3rd embodiment of the present invention.
Based on first embodiment, in the third embodiment, one end and the bottom of outdoor heat exchanger 3 of the 3rd magnetic valve 13 connect
Mouthful connection, one end being connected with the 3rd magnetic valve 13 of the second magnetic valve 12 also enters with the indoor heat exchanger 4 under heating mode
Mouth connection.In operation of air conditioner heating mode, as shown by the arrows in Figure 4, refrigerant is compressed into the flow direction of refrigerant by compressor 1
High temperature and high pressure gas enter 2a mouthfuls of four-way valve 2, and point two-way from after 2d mouthfuls of outflow, lead up to the second magnetic valve 12 and first
Magnetic valve 11 enters compressor 1；Separately leading up to the first stop valve 9 gets in heat exchanger 4, is completed in heat exchanger 4 indoors
Heat exchange, from the condensed refrigerant liquid of indoor heat exchanger 4, enters through the second stop valve 10 and the second electric expansion valve 8
Flash vessel 5, the refrigerant from flash vessel 5 out is divided into two-way, and refrigerant vapour passes through first from 5b mouthfuls of flash vessel 5 all the way
The high-temperature high-pressure refrigerant that magnetic valve 11 is discharged with compressor 1 enters pressure after mixing through the second magnetic valve 12, the first magnetic valve 11
In contracting machine 1；Another road refrigerant is entered in outdoor heat exchanger 3 from 5c mouthfuls of flash vessel 5 by the first electric expansion valve 7, in room
Divide two-way again after carrying out heat exchange in external heat exchanger 3, wherein outlet of the refrigerant from the outdoor heat exchanger 3 under heating mode all the way
Enter compressor 1 through 2b mouthfuls of four-way valve 2,2c mouthfuls and vapour liquid separator 6；The refrigerant of another road richness refrigeration oil is from outdoor heat exchange
The bottom interface of device 3 is after the 3rd magnetic valve 13 mixes with the high-temperature high-pressure refrigerant discharged from compressor 1 through the second electromagnetism
Valve 12, then enter compressor 1 after mixing from the refrigerant of the 5b of flash vessel 5 mouthfuls of discharge through the first magnetic valve 11.
The air injection enthalpy-increasing type air-conditioning that the present embodiment is provided, by by one end being connected with the 3rd magnetic valve of the second magnetic valve
Entrance also with the indoor heat exchanger under heating mode is connected, and the rich refrigeration oil refrigerant of outdoor heat exchanger can be made to pass through the 3rd
After magnetic valve, a part of high-temperature high-pressure refrigerant discharged with compressor enters after mixing through the second magnetic valve and the first magnetic valve
Compressor, can not only reduce at a temperature of low temperature environment stockpiling for refrigeration oil in outdoor heat exchanger, improve the heating efficiency of air-conditioning,
And the tonifying Qi degree of superheat in the air-conditioning heating circulatory system can be increased, and reduce because environment temperature is too low, liquid is contained in tonifying Qi
The possibility of liquid hammer is caused to compressor.
Reference picture 5, Fig. 5 is the structural representation of air injection enthalpy-increasing type air-conditioning fourth embodiment of the present invention.
Based on 3rd embodiment, in the fourth embodiment, one end and the outdoor under heating mode of the 3rd magnetic valve 13 are changed
The outlet connection of hot device 3, one end being connected with the 3rd magnetic valve 13 of the second magnetic valve 12 is also changed with the interior under heating mode
The entrance connection of hot device 4.When outdoor environment temperature is further reduced, the freezing oil mass being accumulated in outdoor heat exchanger 3 increases
Plus, the bottom interface that rich refrigeration oil refrigerant in outdoor heat exchanger 3 can not efficiently from outdoor heat exchanger 3 is caused through the 3rd electricity
Magnet valve 13, the second magnetic valve 12 and the first magnetic valve 11 enter compressor 1.In the present embodiment, by one end of the 3rd magnetic valve 13
Outlet with the outdoor heat exchanger 3 under heating mode is connected.In operation of air conditioner heating mode, in the flow direction such as Fig. 5 of refrigerant
Shown in arrow, the outlet of rich refrigeration oil refrigerant from the outdoor heat exchanger 3 under heating mode in outdoor heat exchanger 3 is electric through the 3rd
After magnet valve 13, through the second magnetic valve 12 and the first magnetic valve after mixing with a part of high-temperature high-pressure refrigerant of the discharge of compressor 1
11 return to compressor 1.The air injection enthalpy-increasing type air-conditioning of the present embodiment improves the adaptability to low temperature environment.
Reference picture 6, Fig. 6 is the structural representation of the embodiment of air injection enthalpy-increasing type air-conditioning the 5th of the present invention.
Based on 3rd embodiment, in the 5th embodiment, one end and the bottom of outdoor heat exchanger 3 of the 3rd magnetic valve 13 connect
Mouth connection, one end being connected with the 3rd magnetic valve 13 of the second magnetic valve 12 is also connected with the middle part interface of indoor heat exchanger 4.This
In embodiment, one end being connected with the 3rd magnetic valve 13 of the second magnetic valve 12 is also connected with the middle part interface of indoor heat exchanger 4
Connect.In operation of air conditioner heating mode, as shown by the arrows in Figure 6, the high-temperature high-pressure refrigerant of the discharge of compressor 1 is through the first cut-off
Valve 9 is got in after heat exchanger 4 completes heat exchange, in indoor heat exchanger 4 rich refrigeration oil refrigerant again through the second magnetic valve 12,
First magnetic valve 11 enters compressor 1.The air injection enthalpy-increasing type air-conditioning of the present embodiment can be in the freezing in removing outdoor heat exchanger
Refrigeration oil in indoor heat exchanger is removed before oil, so as to improve the heating efficiency of air-conditioning.
Reference picture 7, Fig. 7 is the structural representation of air injection enthalpy-increasing type air-conditioning sixth embodiment of the present invention.
Based on above-described embodiment, in the sixth embodiment, one end and the outdoor under heating mode of the 3rd magnetic valve 13 are changed
The outlet connection of hot device 3, the middle part of one end being connected with the 3rd magnetic valve 13 of the second magnetic valve 12 also with indoor heat exchanger 4 connects
Mouth connection.In the present embodiment, by one end being connected with the 3rd magnetic valve 13 of the second magnetic valve 12 also with indoor heat exchanger 4 in
Portion's interface connection.In operation of air conditioner heating mode, the flow direction of refrigerant as shown by the arrows in Figure 7, compressor 1 discharge high temperature
High-pressure refrigerant gets in after heat exchanger 4 carries out heat exchange through the first stop valve 9, rich refrigeration oil system in indoor heat exchanger 4
Cryogen enters compressor 1 through the second magnetic valve 12, the first magnetic valve 11 again.The air injection enthalpy-increasing type air-conditioning of the present embodiment can go
Except removing refrigeration oil in indoor heat exchanger before the refrigeration oil in outdoor heat exchanger, so as to improve the heating efficiency of air-conditioning.And
And, it is connected with the outlet of the outdoor heat exchanger under heating mode by by one end of the 3rd magnetic valve, the richness in outdoor heat exchanger
Refrigeration oil refrigerant can from the outlet of the outdoor heat exchanger under heating mode through the 3rd magnetic valve after, with compressor discharge one
Enter compressor through the second magnetic valve and the first magnetic valve after the high-temperature high-pressure refrigerant mixing of part, improve air injection enthalpy-increasing type empty
Adjust the adaptability to low temperature environment.
Further, based on above-described embodiment, air injection enthalpy-increasing type air-conditioning of the invention also includes controller, the controller
For：Letter is controlled according to the switch that outdoor environment temperature sends the first magnetic valve 11, the second magnetic valve 12 and the 3rd magnetic valve 13
Number.
When outdoor environment temperature is less than the 3rd preset temperature threshold value T3 more than the first preset temperature threshold value T1, the first electricity
Magnet valve 11 is opened, and now the air injection enthalpy-increasing type air-conditioning is common air injection enthalpy-increasing type air-conditioning.
When outdoor environment temperature is less than the first preset temperature threshold value T1, the first magnetic valve 11, the second magnetic valve the 12, the 3rd
Magnetic valve 13 is opened, now in the air injection enthalpy-increasing type air-conditioning heating circulatory system, from the rich refrigeration oil system of the discharge of outdoor heat exchanger 3
Cryogen enters in compressor 1 through the 3rd magnetic valve 13, the second magnetic valve 12, the first magnet valve 11.
Set the first T1=-10 DEG C of preset temperature threshold value, the 3rd T3=-7 DEG C of preset temperature threshold value.Work as outdoor environment temperature
When being less than -7 DEG C more than -10 DEG C, the first magnetic valve 11 is opened, and the 5b mouthfuls of refrigerant of discharge of flash vessel 5 passes through the first electromagnetism
Valve 11 carries out Gas-supplying enthalpy-increasing into compressor 1 is interior.When outdoor environment temperature is less than -10 DEG C, the first magnetic valve 11, the second electromagnetism
Valve 12, the 3rd magnetic valve 13 are opened, and the rich refrigeration oil refrigerant from the discharge of outdoor heat exchanger 3 is through the 3rd the 13, second electricity of magnetic valve
Magnet valve 12, the first magnet valve 11 carry out Gas-supplying enthalpy-increasing into compressor 1 is interior.
Air injection enthalpy-increasing type air-conditioning of the invention, the first magnetic valve, second are sent by controller according to outdoor environment temperature
The switch controlling signal of magnetic valve and the 3rd magnetic valve, so that the air-conditioning heating cyclic system under different outdoor environment temperatures
System uses different Gas-supplying enthalpy-increasing modes.
Further, controller noted above is used for：When outdoor environment temperature is less than the first preset temperature threshold value T1, according to room
External environment temperature corresponding electromagnetic valve switch cycle time, the second magnetic valve 12 of control and the 3rd magnetic valve 13 are periodically carried out
Open and close, until outdoor environment temperature is more than or equal to the first preset temperature threshold value T1.
The first T1=-10 DEG C of preset temperature threshold value is set, outdoor environment temperature corresponding electromagnetic valve switch cycle time is such as
Shown in table 1 below：
The outdoor environment temperature of table 1. corresponding electromagnetic valve switch cycle time
When outdoor environment temperature is in -10 DEG C~-13 DEG C interval ranges, the second magnetic valve 12, the 3rd magnetic valve 13
Gate cycle is 28 minutes.It is a length of when the second magnetic valve 12, the unlatching of the 3rd magnetic valve 13 within each 28 minutes cycle time
3 minutes, a length of 25 minutes during closing.
When outdoor environment temperature is in -13 DEG C~-15 DEG C interval ranges, the second magnetic valve 12, the 3rd magnetic valve 13
Gate cycle is 26 minutes.It is a length of when the second magnetic valve 12, the unlatching of the 3rd magnetic valve 13 within each 26 minutes cycle time
5 minutes, a length of 21 minutes during closing.
When outdoor environment temperature is in -15 DEG C~-20 DEG C interval ranges, the second magnetic valve 12, the 3rd magnetic valve 13
Gate cycle is 20 minutes.It is a length of when the second magnetic valve 12, the unlatching of the 3rd magnetic valve 13 within each 20 minutes cycle time
5 minutes, a length of 15 minutes during closing.
When outdoor environment temperature is in -20 DEG C~-25 DEG C interval ranges, the second magnetic valve 12, the 3rd magnetic valve 13
Gate cycle is 20 minutes.It is a length of when the second magnetic valve 12, the unlatching of the 3rd magnetic valve 13 within each 20 minutes cycle time
6 minutes, a length of 14 minutes during closing.
When outdoor environment temperature is in -25 DEG C~-30 DEG C interval ranges, the second magnetic valve 12, the 3rd magnetic valve 13
Gate cycle is 18 minutes.It is a length of when the second magnetic valve 12, the unlatching of the 3rd magnetic valve 13 within each 18 minutes cycle time
6 minutes, a length of 12 minutes during closing.
Air injection enthalpy-increasing type air-conditioning of the invention according to outdoor environment temperature corresponding electromagnetic valve switch cycle time, control the
Two magnetic valves and the 3rd magnetic valve are periodically opened and closed, and more efficiently improve energy utilization rate.
The present invention further provides a kind of air injection enthalpy-increasing type air-conditioning, reference picture 8, Fig. 8 is air injection enthalpy-increasing type air-conditioning of the present invention
The structural representation of the 7th embodiment.
In the 7th embodiment, the air injection enthalpy-increasing type air-conditioning includes：Compressor 1, four-way valve 2, outdoor heat exchanger 3, interior
Heat exchanger 4, flash vessel 5, vapour liquid separator 6, the first electric expansion valve 7, the second electric expansion valve 8, the first stop valve 9, second
Stop valve 10, the first magnetic valve 11, the air injection enthalpy-increasing type air-conditioning also include the second magnetic valve 12.One end of second magnetic valve 12 with
The middle part interface connection of indoor heat exchanger 4, the other end of the second magnetic valve 12 is connected with one end of the first magnetic valve 11, the first electricity
The other end of magnet valve 11 is connected with the gas supplementing opening of compressor 1.
2a mouthfuls of four-way valve 2 is connected with the exhaust outlet of compressor 1, and 2b mouthfuls of four-way valve 2 is changed with the outdoor under heating mode
The outlet connection of hot device 3,2c mouthfuls of four-way valve 2 is connected to the air entry of compressor 1,2d mouthfuls of four-way valve 2 through vapour liquid separator 6
It is connected with the entrance of the indoor heat exchanger 4 under heating mode by the first stop valve 9.
The outlet of the indoor heat exchanger 4 under heating mode is connected to sudden strain of a muscle through the second stop valve 10 and the second electric expansion valve 8
5a mouthfuls of steaming device 5,5b mouthfuls of flash vessel 5 is connected by the first magnetic valve 11 with the gas supplementing opening of compressor 1,5c mouthfuls of flash vessel 5
It is connected with the entrance of the outdoor heat exchanger 3 under heating mode by the first electric expansion valve 7.
In operation of air conditioner heating mode, the flow direction of refrigerant is as shown by the arrows in Figure 8.Refrigerant is compressed by compressor 1
Enter 2a mouthfuls of four-way valve 2 into high temperature and high pressure gas, and heat exchanger 4 got in by the first stop valve 9 from after 2d mouthfuls of outflow,
Heat exchange is completed in heat exchanger 4 indoors, from the refrigerant point two-way of the discharge of indoor heat exchanger 4, the first via is from indoor heat exchange
The middle part interface of device 4 enters compressor 1 through the second magnetic valve 12 and the first magnetic valve 11；Second road is from the interior under heating mode
The outlet of heat exchanger 4 enters flash vessel 5, the refrigeration from flash vessel 5 out through the second stop valve 10 and the second electric expansion valve 8
Agent is divided into two-way, all the way refrigerant vapour from 5b mouthfuls of flash vessel 5 by the first magnetic valve 11 with from the middle part of indoor heat exchanger 4
Interface enters in compressor 1 after mixing through the refrigerant of the second magnetic valve 12 and the first magnetic valve 11；Another road refrigerant is from sudden strain of a muscle
5c mouthfuls of steaming device 5 is entered in outdoor heat exchanger 3 by the first electric expansion valve 7, complete in the outdoor heat exchanger 3 after heat exchange from
The outlet of the outdoor heat exchanger 3 under heating mode enters compressor 1 through 2b mouthfuls, 2c mouthfuls of four-way valve 2 and vapour liquid separator 6.
The air injection enthalpy-increasing type air-conditioning that the present embodiment is provided, by by the middle part of one end of the second magnetic valve and indoor heat exchanger
Interface is connected, and the other end of the second magnetic valve is connected with one end of the first magnetic valve, the other end and compressor of the first magnetic valve
Gas supplementing opening connection.The rich refrigeration oil refrigerant of indoor heat exchanger can be made to enter compression by the second magnetic valve and the first magnetic valve
Machine, reduces at a temperature of low temperature environment stockpiling for refrigeration oil in the air-conditioning heating circulatory system, and not only compressor can be lubricated,
And improve the heating efficiency of air-conditioning.
Further, based on the 7th embodiment, air injection enthalpy-increasing type air-conditioning of the invention also includes controller, the controller
For：The switch controlling signal of the first magnetic valve 11, the second magnetic valve 12 is sent according to outdoor environment temperature.
When outdoor environment temperature is less than the 4th preset temperature threshold value T4 more than the second preset temperature threshold value T2, the first electricity
Magnet valve 11 is opened, and now the air injection enthalpy-increasing type air-conditioning is common air injection enthalpy-increasing type air-conditioning.
When outdoor environment temperature is less than the second preset temperature threshold value T2, the first magnetic valve 11, the second magnetic valve 12 are opened,
Now in the air injection enthalpy-increasing type air-conditioning heating circulatory system, from the rich refrigeration oil refrigeration of the middle part interface discharge of indoor heat exchanger 4
Agent enters in compressor 1 through the second magnetic valve 12, the first magnet valve 11.
With reference to the first preset temperature threshold value T1 and the 3rd preset temperature threshold value T3 of preceding embodiment, the default temperature of setting second
T2=-10 DEG C of threshold value of degree, the 4th T4=-7 DEG C of preset temperature threshold value.Second preset temperature threshold value T2 and the 4th preset temperature threshold value
T4 can also set other values according to actual conditions.When outdoor environment temperature is less than -7 DEG C more than -10 DEG C, the first magnetic valve
11 open, and the 5b mouthfuls of refrigerant of discharge of flash vessel 5 carries out Gas-supplying enthalpy-increasing by the first magnetic valve 11 into compressor 1 is interior.When
When outdoor environment temperature is less than -10 DEG C, the first magnetic valve 11, the second magnetic valve 12 are opened, from the middle part interface of indoor heat exchanger 4
The rich refrigeration oil refrigerant of discharge carries out Gas-supplying enthalpy-increasing through the second magnetic valve 12, the first magnet valve 11 into compressor 1 is interior.
Air injection enthalpy-increasing type air-conditioning of the invention, the first magnetic valve 11, are sent by controller according to outdoor environment temperature
The switch controlling signal of two magnetic valves 12, so that the air-conditioning heating circulatory system is not using under different outdoor environment temperatures
Same Gas-supplying enthalpy-increasing mode.
Further, controller noted above is used for：When outdoor environment temperature is less than the second preset temperature threshold value T2, according to outdoor
Environment temperature corresponding electromagnetic valve switch cycle time, the second magnetic valve 12 of control is periodically opened and closed, until outdoor
Environment temperature is more than or equal to the second preset temperature threshold value T2.
With reference to the first preset temperature threshold value T1 of preceding embodiment, the second T2=-10 DEG C of preset temperature threshold value, second are set
Preset temperature threshold value T2 can also set other values according to actual conditions.Outdoor environment temperature corresponding second magnetic valve 12 is opened
Close cycle time as shown in table 2 below：
The outdoor environment temperature of table 2. corresponding second electromagnetic valve switch cycle time
Specifically, according to outdoor environment temperature corresponding electromagnetic valve switch cycle time, the cycle of the second magnetic valve 12 is controlled
Opened and closed to property and can refer to described in preceding embodiment, just repeated no more herein.
Air injection enthalpy-increasing type air-conditioning of the invention according to outdoor environment temperature corresponding electromagnetic valve switch cycle time, control the
Two magnetic valves are periodically opened and closed, and more efficiently improve energy utilization rate.
The present invention further provides a kind of control method of air injection enthalpy-increasing type air-conditioning, reference picture 9, Fig. 9 is jet of the present invention
The schematic flow sheet of the control method first embodiment of increasing enthalpy type air-conditioning.
In the first embodiment, the control method of the air injection enthalpy-increasing type air-conditioning is comprised the following steps：
Step S11, in low-temperature heating, detects outdoor environment temperature.
In the middle of the present embodiment, by the temperature sensor being arranged in air-conditioner outdoor unit, outdoor environment temperature is detected.
When controlling air-conditioner to operate in low-temperature heating, the outdoor environment temperature detected by the temperature sensor in the outdoor unit will be obtained
Degree T.
Step S12, when the outdoor environment temperature value is less than the first preset temperature threshold value, control first magnetic valve,
Second magnetic valve and the 3rd magnetic valve are opened, and the outdoor heat exchanger is connected with the compressor.
When the outdoor environment temperature T for detecting is less than the first preset temperature threshold value T1, then first is sent by controller
The control signal that magnetic valve 11, the second magnetic valve 12 and the 3rd magnetic valve 13 are opened, the first magnetic valve 11 of control, the second magnetic valve
12 and the 3rd magnetic valve 13 open, outdoor heat exchanger 3 is connected with compressor 1, the rich refrigeration oil refrigerant in outdoor heat exchanger 3
Gas-supplying enthalpy-increasing is carried out into compressor 1 is interior by the 3rd magnetic valve 13, the second magnetic valve 12, the first magnetic valve 11.
When the outdoor environment temperature T for detecting is less than the 3rd preset temperature threshold value T3 more than the first preset temperature threshold value T1
When, then the control signal that the first magnetic valve 11 is opened being sent by controller, the first magnetic valve 11 of control is opened, the second magnetic valve
12 and the 3rd magnetic valve 13 close, be now common Gas-supplying enthalpy-increasing pattern, the refrigerant of flash vessel 5 is entered by the first magnetic valve 11
Entering compressor 1 carries out Gas-supplying enthalpy-increasing.In the present embodiment, the first T1=-10 DEG C of preset temperature threshold value, the 3rd preset temperature threshold are set
T3=-7 DEG C of value.
The control method of the air injection enthalpy-increasing type air-conditioning of the present embodiment, the first electromagnetism is sent by according to outdoor environment temperature
The switch controlling signal of valve, the second magnetic valve and the 3rd magnetic valve, so that the air-conditioning system under different outdoor environment temperatures
Heat circulating system uses different Gas-supplying enthalpy-increasing modes.
Further, the control method of air injection enthalpy-increasing type air-conditioning of the invention also includes：According to outdoor environment temperature control
The switch periods time of the second magnetic valve and the 3rd magnetic valve.
It is corresponding according to outdoor environment temperature when the outdoor environment temperature T of detection is less than the first preset temperature threshold value T1
Electromagnetic valve switch cycle time, the second magnetic valve 12 of control and the 3rd magnetic valve 13 are periodically opened and closed, until outdoor
Environment temperature T is more than or equal to the first preset temperature threshold value T1.The first preset temperature threshold value T1=-10 of setting in the middle of the present embodiment
DEG C, outdoor environment temperature corresponding electromagnetic valve switch cycle time is as shown in table 1.
When the outdoor environment temperature T of detection is in -10 DEG C~-13 DEG C interval ranges, the second magnetic valve the 12, the 3rd is controlled
The gate cycle of magnetic valve 13 is 28 minutes.Within each 28 minutes cycle time, the second magnetic valve 12 of control, the 3rd magnetic valve
A length of 3 minutes during 13 unlatching, a length of 25 minutes during closing.
When the outdoor environment temperature T of detection is in -13 DEG C~-15 DEG C interval ranges, the second magnetic valve the 12, the 3rd is controlled
The gate cycle of magnetic valve 13 is 26 minutes.Within each 26 minutes cycle time, the second magnetic valve 12 of control, the 3rd magnetic valve
A length of 5 minutes during 13 unlatching, a length of 21 minutes during closing.
When the outdoor environment temperature T of detection is in -15 DEG C~-20 DEG C interval ranges, the second magnetic valve the 12, the 3rd is controlled
The gate cycle of magnetic valve 13 is 20 minutes.Within each 20 minutes cycle time, the second magnetic valve 12 of control, the 3rd magnetic valve
A length of 5 minutes during 13 unlatching, a length of 15 minutes during closing.
When the outdoor environment temperature T of detection is in -20 DEG C~-25 DEG C interval ranges, the second magnetic valve the 12, the 3rd is controlled
The gate cycle of magnetic valve 13 is 20 minutes.Within each 20 minutes cycle time, the second magnetic valve 12 of control, the 3rd magnetic valve
A length of 6 minutes during 13 unlatching, a length of 14 minutes during closing.
When the outdoor environment temperature T of detection is in -25 DEG C~-30 DEG C interval ranges, the second magnetic valve the 12, the 3rd is controlled
The gate cycle of magnetic valve 13 is 18 minutes.Within each 18 minutes cycle time, the second magnetic valve 12 of control, the 3rd magnetic valve
A length of 6 minutes during 13 unlatching, a length of 12 minutes during closing.
The control method of air injection enthalpy-increasing type air-conditioning of the invention, according to the outdoor environment temperature corresponding electromagnetic valve switch cycle
Time, the second magnetic valve of control and the 3rd magnetic valve are periodically opened and closed, and more efficiently improve energy utilization rate.
The present invention further provides a kind of control method of air injection enthalpy-increasing type air-conditioning, reference picture 10, Figure 10 sprays for the present invention
The schematic flow sheet of the control method second embodiment of gas increasing enthalpy type air-conditioning.
In a second embodiment, the control method of the air injection enthalpy-increasing type air-conditioning is comprised the following steps：
Step S21, in low-temperature heating, detects outdoor environment temperature.
Step S22, when the outdoor environment temperature value is less than the second preset temperature threshold value, control first magnetic valve and
Second magnetic valve is opened, and the indoor heat exchanger is connected with the compressor.
When the outdoor environment temperature T for detecting is less than the second preset temperature threshold value T2, then first is sent by controller
The control signal that magnetic valve 11, the second magnetic valve 12 are opened, the first magnetic valve 11 of control, the second magnetic valve 12 are opened, and make interior
Heat exchanger 4 is connected with compressor 1, and the rich refrigeration oil refrigerant of indoor heat exchanger 4 passes through the second magnetic valve 12, the first magnetic valve 11
Gas-supplying enthalpy-increasing is carried out in into compressor 1.
When the outdoor environment temperature T for detecting is less than the 4th preset temperature threshold value T4 more than the second preset temperature threshold value T2
When, then the control signal that the first magnetic valve 11 is opened being sent by controller, the first magnetic valve 11 of control is opened, the second magnetic valve
12 are closed, and are now common Gas-supplying enthalpy-increasing pattern, and the refrigerant of flash vessel 5 is carried out by the first magnetic valve 11 into compressor 1
Gas-supplying enthalpy-increasing.In the present embodiment, with reference to the first preset temperature threshold value T1 and the 3rd preset temperature threshold value T3 of preceding embodiment, if
Fixed second T2=-10 DEG C of preset temperature threshold value, the 4th T4=-7 DEG C of preset temperature threshold value.Second preset temperature threshold value T2 and the 4th
Preset temperature threshold value T4 can also set other values according to actual conditions.
The control method of the air injection enthalpy-increasing type air-conditioning of the present embodiment, the first electromagnetism is sent by according to outdoor environment temperature
The switch controlling signal of valve, the second magnetic valve, so that the air-conditioning heating circulatory system is adopted under different outdoor environment temperatures
With different Gas-supplying enthalpy-increasing modes.
Further, the control method of air injection enthalpy-increasing type air-conditioning of the invention also includes：According to outdoor environment temperature control
The switch periods time of the second magnetic valve.
It is corresponding according to outdoor environment temperature when the outdoor environment temperature T of detection is less than the second preset temperature threshold value T2
Electromagnetic valve switch cycle time, control the second magnetic valve 12 periodically opened and closed, until outdoor environment temperature T be more than or
Equal to the second preset temperature threshold value T2.In the middle of the present embodiment, with reference to the first preset temperature threshold value T1, the second preset temperature threshold is set
T2=-10 DEG C of value, the second preset temperature threshold value T2 can also set other values according to actual conditions, and outdoor environment temperature is corresponding
The switch periods time of the second magnetic valve 12 is as shown in table 2.Specifically, according to outdoor environment temperature corresponding electromagnetic valve switch week
Time phase, the second magnetic valve 12 of control is periodically opened and the operation closed can refer to described in preceding embodiment, herein just not
Repeat again.
The control method of air injection enthalpy-increasing type air-conditioning of the invention, according to the outdoor environment temperature corresponding electromagnetic valve switch cycle
Time, the second magnetic valve of control is periodically opened and closed, and more efficiently improves energy utilization rate.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of air injection enthalpy-increasing type air-conditioning, including compressor, four-way valve, outdoor heat exchanger, flash vessel, indoor heat exchanger, first
Magnetic valve, it is characterised in that the air injection enthalpy-increasing type air-conditioning also includes the second magnetic valve, the 3rd magnetic valve；3rd electromagnetism
The bottom interface of one end of valve and the outdoor heat exchanger under heating mode or outlet are connected, the 3rd magnetic valve it is another
End is connected with one end of the second magnetic valve, and the other end of second magnetic valve is connected with one end of first magnetic valve；Institute
State one end being connected with the 3rd magnetic valve of the second magnetic valve also with heating mode under the indoor heat exchanger entrance or
Middle part interface connection；First magnetic valve is located on the connecting pipe between the flash vessel and the compressor.
2. air injection enthalpy-increasing type air-conditioning as claimed in claim 1, it is characterised in that the air injection enthalpy-increasing type air-conditioning also includes control
Device, the controller is used for：The switch of the first magnetic valve, the second magnetic valve and the 3rd magnetic valve is sent according to outdoor environment temperature
Control signal.
3. air injection enthalpy-increasing type air-conditioning as claimed in claim 1, it is characterised in that the air injection enthalpy-increasing type air-conditioning also includes control
Device, the controller is used for：When outdoor environment temperature is less than the first preset temperature threshold value, according to outdoor environment temperature correspondence
Electromagnetic valve switch cycle time, control the second magnetic valve and the 3rd magnetic valve periodically opened and closed, until outdoor ring
Border temperature is more than or equal to the first preset temperature threshold value.
4. a kind of air injection enthalpy-increasing type air-conditioning, including compressor, four-way valve, outdoor heat exchanger, flash vessel, indoor heat exchanger, first
Magnetic valve, it is characterised in that the air injection enthalpy-increasing type air-conditioning also includes the second magnetic valve；One end of second magnetic valve and institute
The middle part interface connection of indoor heat exchanger is stated, the other end of second magnetic valve is connected with one end of first magnetic valve；
First magnetic valve is located on the connecting pipe between the flash vessel and the compressor.
5. air injection enthalpy-increasing type air-conditioning as claimed in claim 4, it is characterised in that the air injection enthalpy-increasing type air-conditioning also includes control
Device, the controller is used for：The switch controlling signal of the first magnetic valve, the second magnetic valve is sent according to outdoor environment temperature.
6. air injection enthalpy-increasing type air-conditioning as claimed in claim 4, it is characterised in that the air injection enthalpy-increasing type air-conditioning also includes control
Device, the controller is used for：When outdoor environment temperature is less than the second preset temperature threshold value, according to outdoor environment temperature correspondence
Electromagnetic valve switch cycle time, control the second magnetic valve periodically opened and closed, until outdoor environment temperature be more than or
Equal to the second preset temperature threshold value.
7. a kind of control method of air injection enthalpy-increasing type air-conditioning, it is characterised in that the air injection enthalpy-increasing type air-conditioning is claim 1 institute
The air injection enthalpy-increasing type air-conditioning stated, the control method of the air injection enthalpy-increasing type air-conditioning is comprised the following steps：
In low-temperature heating, outdoor environment temperature is detected；
When the outdoor environment temperature value is less than the first preset temperature threshold value, control first magnetic valve, the second magnetic valve and
3rd magnetic valve is opened, and the outdoor heat exchanger is connected with the compressor.
8. the control method of air injection enthalpy-increasing type air-conditioning as claimed in claim 7, it is characterised in that the air injection enthalpy-increasing type air-conditioning
Control method also include：
The switch periods time of the second magnetic valve and the 3rd magnetic valve is controlled according to outdoor environment temperature.
9. a kind of control method of air injection enthalpy-increasing type air-conditioning, it is characterised in that the air injection enthalpy-increasing type air-conditioning is claim 4 institute
The air injection enthalpy-increasing type air-conditioning stated, the control method of the air injection enthalpy-increasing type air-conditioning is comprised the following steps：
In low-temperature heating, outdoor environment temperature is detected；
When the outdoor environment temperature value is less than the second preset temperature threshold value, first magnetic valve and the second magnetic valve is controlled to beat
Open, the indoor heat exchanger is connected with the compressor.
10. the control method of air injection enthalpy-increasing type air-conditioning as claimed in claim 9, it is characterised in that the air injection enthalpy-increasing type is empty
The control method of tune also includes：
The switch periods time of the second magnetic valve is controlled according to outdoor environment temperature.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890512A (en) * | 2003-12-10 | 2007-01-03 | 开利公司 | Oil return control in refrigerant system |
| KR100871320B1 (en) * | 2007-04-11 | 2008-12-01 | 한국에너지기술연구원 | Oil-separator installed two-stage compression heat pump |
| JP2009228972A (en) * | 2008-03-21 | 2009-10-08 | Daikin Ind Ltd | Refrigerating device |
| CN201858817U (en) * | 2010-11-09 | 2011-06-08 | 新乡市力欧机械有限公司 | Automatic oil return device for refrigerating unit |
| CN103375935A (en) * | 2012-04-25 | 2013-10-30 | 珠海格力电器股份有限公司 | Two-stage compression circulation system and control method for air conditioner with same |
| CN203572113U (en) * | 2013-10-31 | 2014-04-30 | 海尔集团公司 | Air conditioner and air supplementing and enthalpy adding system of air conditioner |
| CN204268744U (en) * | 2014-11-13 | 2015-04-15 | 广东美的制冷设备有限公司 | Air injection enthalpy-increasing type air-conditioning |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229497A (en) * | 1996-02-19 | 1997-09-05 | Denso Corp | Refrigerating cycle |
| JP5169295B2 (en) * | 2007-03-27 | 2013-03-27 | ダイキン工業株式会社 | Refrigeration equipment |
| JP2011094841A (en) * | 2009-10-28 | 2011-05-12 | Daikin Industries Ltd | Refrigerating device |
-
2014
- 2014-11-13 CN CN201410649687.1A patent/CN104456840B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890512A (en) * | 2003-12-10 | 2007-01-03 | 开利公司 | Oil return control in refrigerant system |
| KR100871320B1 (en) * | 2007-04-11 | 2008-12-01 | 한국에너지기술연구원 | Oil-separator installed two-stage compression heat pump |
| JP2009228972A (en) * | 2008-03-21 | 2009-10-08 | Daikin Ind Ltd | Refrigerating device |
| CN201858817U (en) * | 2010-11-09 | 2011-06-08 | 新乡市力欧机械有限公司 | Automatic oil return device for refrigerating unit |
| CN103375935A (en) * | 2012-04-25 | 2013-10-30 | 珠海格力电器股份有限公司 | Two-stage compression circulation system and control method for air conditioner with same |
| CN203572113U (en) * | 2013-10-31 | 2014-04-30 | 海尔集团公司 | Air conditioner and air supplementing and enthalpy adding system of air conditioner |
| CN204268744U (en) * | 2014-11-13 | 2015-04-15 | 广东美的制冷设备有限公司 | Air injection enthalpy-increasing type air-conditioning |
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