CN103175262B - Solar airconditioning - Google Patents

Solar airconditioning Download PDF

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Publication number
CN103175262B
CN103175262B CN201310087416.7A CN201310087416A CN103175262B CN 103175262 B CN103175262 B CN 103175262B CN 201310087416 A CN201310087416 A CN 201310087416A CN 103175262 B CN103175262 B CN 103175262B
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CN
China
Prior art keywords
reversal valve
indoor
port
premises station
compressor
Prior art date
Application number
CN201310087416.7A
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Chinese (zh)
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CN103175262A (en
Inventor
陈五奎
刘强
黄振华
覃雪华
李粉莉
郭业圣
Original Assignee
深圳市拓日新能源科技股份有限公司
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Priority to CN201310087416.7A priority Critical patent/CN103175262B/en
Publication of CN103175262A publication Critical patent/CN103175262A/en
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Publication of CN103175262B publication Critical patent/CN103175262B/en

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Abstract

The invention belongs to field of Environment Protection, particularly relate to solar airconditioning.It comprises by the compressor of pipeline communication, indoor set and off-premises station, off-premises station and indoor set all have two ports, off-premises station and described indoor set pass through the first pipeline communication, the second reversal valve also comprising solar thermal collector, the first reversal valve be connected with the outlet of compressor and the import of solar thermal collector and be connected with the entrance of compressor; The outlet of solar thermal collector is connected to the second reversal valve by second pipe; Second pipe is connected to the first reversal valve by bypass line, and on off-premises station and described indoor set, another port is all connected to the second reversal valve.In the present invention, employing two reversal valves change the annexation between compressor, indoor set and off-premises station and solar thermal collector, solar thermal collector is utilized to carry out after-treatment to refrigerant, thus the adjustment of indoor temperature, reduce the operating time of compressor, decrease the consumption of electric energy.

Description

Solar airconditioning
Technical field
The invention belongs to field of Environment Protection, particularly relate to solar airconditioning.
Background technology
At present, mostly the application of air-conditioning is to adopt freon as cooling fluid, by electric power as power source, is circulated by driven compressor freon, thus realizes the exchange heat of air.
Actually should to apply, to have the following disadvantages:
During air-conditioning work, compressor needs to consume a large amount of electric energy, and freon evaporate in air and will destroy atmosphere, is unfavorable for environmental protection.
Summary of the invention
The object of the present invention is to provide a kind of solar airconditioning, be intended to solve air-conditioning of the prior art and consume the large problem of electric energy.
The present invention realizes like this, solar airconditioning, comprise by the compressor of pipeline communication, indoor set and off-premises station, described pipeline is built with the refrigerant for heat exchange, described off-premises station and described indoor set all have two ports, port corresponding on described off-premises station and described indoor set is by the first pipeline communication, and also comprise solar thermal collector, the first reversal valve and the second reversal valve, the outlet of described compressor is connected to the first reversal valve; The entrance of described compressor is connected to the second reversal valve; The import of described solar thermal collector is connected to described first reversal valve; The outlet of described solar thermal collector is connected to described second reversal valve by second pipe; Described second pipe is connected to described first reversal valve by bypass line, and on described off-premises station and described indoor set, another port is all connected to the second reversal valve.
Further, described first reversal valve and the second reversal valve are four-way reversing solenoid valve.
Further, also comprise a gas-liquid separator, described gas-liquid separator is connected to described suction port of compressor end.
Further, the exit near described solar thermal collector on described bypass duct and described second pipe is provided with check valve.
Further, described pipeline is copper pipe.
Further, the wall thickness of described copper pipe is greater than 0.8mm.
Further, described first pipeline is provided with capillary and one-way throttle valve along described off-premises station successively toward described indoor set direction.
Compared with prior art, the present invention selects the solar energy of environmental protection as the energy, and adopt two reversal valves to change compressor, annexation between indoor set and off-premises station and solar thermal collector, according to the different demands at daytime and night, there are four kinds of different operating states, refrigerant is circulated between each device, and then the heat of indoor and outdoor heat are exchanged, realize the adjustment of indoor temperature, simultaneously, described solar thermal collector utilizes solar energy to carry out Pressurized-heated process to refrigerant, thus reduce the operating time of compressor, so, decrease the consumption of electric energy, avoid the generation power failure in electric peak period.
Accompanying drawing explanation
Fig. 1 is the connection diagram of solar airconditioning refrigeration on daytime in the embodiment of the present invention;
Fig. 2 is the connection diagram of solar airconditioning refrigeration at night in the embodiment of the present invention;
Fig. 3 is the connection diagram that in the embodiment of the present invention, solar airconditioning heats daytime;
Fig. 4 is the connection diagram that in the embodiment of the present invention, solar airconditioning heats night.
Description of symbols:
1 indoor set D1 first reversal valve
2 off-premises station D2 second reversal valves
3 solar thermal collector K1 first check valves
4 compressor K2 second check valves
5 gas-liquid separator 81 first pipelines
6 one-way throttle valve 82 second pipes
7 capillary 83 bypass ducts
A second reversal valve Single port E first reversal valve Single port
B second reversal valve Two-port netwerk F first reversal valve Two-port netwerk
C second reversal valve three port G first reversal valve three port
D second reversal valve four port H first reversal valve four port
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with concrete accompanying drawing, realization of the present invention is described in detail.
As shown in figures 1-4, the preferred embodiment for providing in the present invention is in connection diagram during four kinds of different operating states.
This solar airconditioning adopts refrigerant R410a as the working media of heat exchange, R410a, it is a kind of mix refrigerant, the mixture that it is made up of R32 (difluoromethane) and R125 (pentafluoroethane), appearance colorless is not muddy, volatile, boiling point-51.6 DEG C ,-155 DEG C, freezing point; It does not damage the ozone layer.Not chloride element in its molecular formula, therefore its depletion of the ozone layer latent energy value (ODP) is 0, global warming potential (GWP) is less than 0.2.Thus, adopt R410a as working media, the problem that the volatilization that can not produce freon damages the ozone layer, meets the requirement of environmental protection.
The present invention realizes like this, solar airconditioning, comprise by the compressor 4 of pipeline communication, indoor set 1 and off-premises station 2, described pipeline is built with the refrigerant for heat exchange, described off-premises station 2 has off-premises station 2 upper port and off-premises station 2 lower port that are in top and the bottom respectively, described indoor set 1 has indoor set 1 upper port being in top and the bottom respectively and indoor set 1 lower port.Off-premises station 2 upper port is mutually corresponding with indoor set 1 upper port, is communicated with by the first pipeline 81.Solar airconditioning also comprises solar thermal collector 3, first reversal valve D1 and the second reversal valve D2, and the outlet of described compressor 4 is connected to the first reversal valve D1; The entrance of described compressor 4 is connected to the second reversal valve D2; The import of described solar thermal collector 3 is connected to described first reversal valve D1; The outlet of described solar thermal collector 3 is connected to described second reversal valve D2 by second pipe 82; Described second pipe 82 is connected to described first reversal valve D1 by bypass line 83, and on described off-premises station 2 and described indoor set 1, another port is all connected to the second reversal valve D2.
The operation principle of solar airconditioning of the present invention is: when freezing, the refrigerant of gaseous state passes through the gaseous coolant of compressor 4 boil down to HTHP, when solar thermal collector 3 can work, can manually or electrical control regulate first reversal valve D1 access solar thermal collector 3, the gaseous coolant of HTHP can be passed through solar thermal collector 3 and carries out second-compressed, thus reduce the power of compressor 4, the gaseous coolant of HTHP is delivered to off-premises station 2 (now off-premises station 2 is equivalent to condenser) subsequently and heat exchange is occurred, the gaseous coolant of HTHP is after under air-cooled effect, exothermic conversion is the liquid refrigerants of medium temperature and medium pressure, through piping (refrigerant is now converted into the liquid refrigerants of low-temp low-pressure), enter indoor set 1 (now indoor set 1 is equivalent to evaporimeter), the liquid refrigerants absorption chamber environment heat of low-temp low-pressure becomes gaseous coolant, indoor temperature is reduced, reach refrigeration, gaseous coolant enters compressor 4 through pipeline through pipeline, thus complete a process of refrigerastion and complete.So, reciprocation cycle, until the object reaching indoor refrigeration.
When needs heat, change the second reversal valve D2, thus adjustment refrigerant just can through the flow direction of indoor set 1 and off-premises station 2.
In the present invention, employing two reversal valves change the annexation between compressor 4, indoor set 1 and off-premises station 2 and solar thermal collector 3, refrigerant is circulated between each device, and then the heat of indoor and outdoor heat are exchanged, realize the adjustment of indoor temperature, described solar thermal collector 3 utilizes solar energy to carry out Pressurized-heated process to refrigerant, thus reduces the operating time of compressor 4, so, decrease the consumption of electric energy, avoid the generation power failure in electric peak period.
Preferably, described first reversal valve D1 and the second reversal valve D2 is all selected as four-way reversing solenoid valve.This four-way reversing solenoid valve has four ports.As Figure 1-Figure 4, described first reversal valve D1 has the first reversal valve Single port E, the first reversal valve Two-port netwerk F, the first reversal valve three port G and the first reversal valve four port H.Described second reversal valve D2 has the second reversal valve Single port A, the second reversal valve Two-port netwerk B, the second reversal valve three port C and the second reversal valve four port D.Wherein, second reversal valve D Single port A is communicated in the lower port of indoor set 1, second reversal valve Two-port netwerk B is communicated in the entrance of compressor 4, and the second reversal valve three port C is communicated in the lower port of described off-premises station 2, and the second reversal valve four port D is communicated in solar thermal collector 3 and the first reversal valve D1.When needing the cooling and warming pattern switching solar airconditioning, the connected relation between a last port of the second reversal valve D2 only need be regulated.Particularly, when solar airconditioning is in refrigeration mode, as depicted in figs. 1 and 2, the second reversal valve Single port A of the second reversal valve D2 is connected with the second reversal valve Two-port netwerk B, and the second reversal valve three port C is connected with the second reversal valve four port D.When solar airconditioning is in heating mode, as shown in Figure 3 and Figure 4, the second reversal valve Single port A of the second reversal valve D2 is connected with the second reversal valve four port D, second reversal valve Two-port netwerk B is connected with the second reversal valve three port C, so, be convenient to realize Automated condtrol, be easy to the quick switching realized between refrigeration mode and heating mode, simple operation, is easy to safeguard.
Certainly, also can select the reversal valve being greater than four-way, also can realize the quick switching between refrigeration mode and heating mode.
Further, also comprise a gas-liquid separator 5, described gas-liquid separator 5 is connected to described compressor 4 arrival end.When the refrigerant return completing a heat exchange is to compressor 4 entrance, described gas-liquid separator 5 will the refrigerant gas-liquid separation of backflow, thus improves the Pressurized-heated effect of compressor 4 pairs of refrigerants, ensure that the immunoregulation function of solar airconditioning to room air.
Further, the exit near described solar thermal collector 3 on described bypass duct 83 is provided with the second check valve K2.Exit near described solar thermal collector 3 on described second pipe 82 is provided with the first check valve K1.By arranging the first check valve K1 and the second check valve K2 can prevent ducted refrigerant return, ensure that reliability when refrigerant circulation regulates air, and then ensure that the reliability of solar airconditioning.
Further, described pipeline is copper pipe.Usual employing fine copper makes, and copper material has thermal conductivity, weldability and mechanical strength better, and affordable, has higher cost performance.When adopting working media as heat exchange of refrigerant R410a, the wall thickness of described copper pipe is greater than 0.8mm.Just can bear the air pressure of refrigerant R410a.So, be easy to the cost performance improving whole solar airconditioning, make it to have more market competition advantage.
Further, described first pipeline 81 is provided with capillary 7 and one-way throttle valve 6 along described off-premises station 2 successively toward described indoor set 1 direction.In practical application, capillary 7 is that a diameter is very little, and length is longer and with single copper pipe of certain degree of hardness, the internal diameter of capillary 7 is (usually thick than the internal diameter of the capillary 7 of refrigerator) between 1-1.5 ㎜, wall thickness about the 0.5mm of capillary 7, length is between 600-2000mm.Particularly, capillary 7 length can need according to the power of air-conditioner coupling and determine, and different capacity joins different length and internal diameter.By arranging capillary 7 and one-way throttle valve 6, the effect of step-down throttling can be played to refrigerant, the normal temperature high voltage liquid refrigerants of liquefaction in off-premises station 2 can be stoped directly to enter indoor set 1, reduce the pressure in indoor set 1, be conducive to the evaporation of refrigerant.After compressor 4 shuts down, make the pressure of low-pressure section and high-pressure section keep shrivelled by capillary 7, thus make compressor 4 be easy to start.
Just specific works state of the present invention is explained below:
One, freeze daytime:
Fig. 1 is the connection diagram of solar airconditioning refrigeration on daytime in the embodiment of the present invention.
Select refrigeration mode after start, the second reversal valve D2 is converted to refrigeration mode, and namely the second reversal valve Single port A of the second reversal valve D2 is connected with the second reversal valve Two-port netwerk B, and the second reversal valve three port C is connected with the second reversal valve four port D.The gaseous coolant R410a that gaseous coolant R410a is compressed into HTHP by compressor 4 enters the first reversal valve D1, now, solar thermal collector 3 can work, first reversal valve D1 electromagnet energising, be interconnected by first reversal valve three port G and the first reversal valve four port H, the first reversal valve Single port E and the first reversal valve Two-port netwerk F is airtight.Now gaseous coolant R410a is entered by the first reversal valve four port H, first reversal valve three port G goes out, enter solar thermal collector 3, when refrigerant R410a is issued to setting value in the effect of solar thermal collector 3, feed back to control system, down conversion process is carried out to compressor 4, thus reduces the energy consumption of compressor 4.Gaseous state HTHP refrigerant R410a is through solar thermal collector 3 second-compressed, flowed out by the outlet of solar thermal collector 3, the second reversal valve three port C is flowed to through the first check valve K1 and second pipe 82, the lower port of off-premises station 2 is flowed to again from the second reversal valve four port D, the lower port of machine 2 enters in off-premises station 2 (now off-premises station 2 is equivalent to condenser) outdoor, the liquid refrigerants R410a that heat deflection is medium temperature and medium pressure is transferred in air-cooled effect, capillary 7 again successively on the first pipeline 81 and one-way throttle valve 6, now, refrigerant R410a changes the liquid state of low-temp low-pressure into, enter indoor set 1 (now indoor set 1 is equivalent to evaporimeter), refrigerant R410a absorption chamber environment heat becomes gaseous coolant R410a, now indoor temperature reduces, thus reach refrigeration.Refrigerant R410a enters compressor 4 through pipeline through gas-liquid separator 5 again, thus completes and once freeze.So, reciprocation cycle, until the target of indoor refrigeration.
Two, freeze night:
Fig. 2 is the connection diagram of solar airconditioning refrigeration at night in the embodiment of the present invention.
The difference that itself and daytime freeze is: now, and solar thermal collector 3 does not work, the first reversal valve D1 electromagnet power-off, and the first reversal valve Single port E and the first reversal valve four port H is interconnected, and the first reversal valve Two-port netwerk F and the first reversal valve three port G is airtight.Now gaseous coolant R410a is entered by the first reversal valve four port H, and the first reversal valve Single port E goes out, and flows through the second check valve K2, gets around solar thermal collector 3, carry out circularly cooling, until reach indoor refrigeration requirement.
Three, heat daytime:
Fig. 3 is the connection diagram that in the embodiment of the present invention, solar airconditioning heats daytime.
The difference that itself and daytime freeze is: now, second reversal valve D2 is converted to heating mode, namely the second reversal valve Single port A of the second reversal valve D2 is connected with the second reversal valve four port D, second reversal valve Two-port netwerk B is connected with the second reversal valve three port C, and gaseous state HTHP refrigerant R410a flows to off-premises station 2 (now off-premises station 2 is equivalent to evaporimeter) by described indoor set 1 (now indoor set 1 is equivalent to condenser).Gaseous state HTHP refrigerant R410a enters indoor set 1 (now indoor set 1 is equivalent to condenser), gaseous state HTHP refrigerant R410a transfers in air-cooled effect the liquid refrigerants R410a that heat deflection is medium temperature and medium pressure, thus indoor temperature is raised, reach the effect of heating, the liquid refrigerants R410a of medium temperature and medium pressure is through one-way throttle valve 6 and capillary 7, be converted to the liquid state of low-temp low-pressure, enter off-premises station 2 (now off-premises station 2 is equivalent to evaporimeter) again, absorption chamber external environment heat becomes gaseous coolant R410a, compressor 4 is back to through gas-liquid separator 5, thus complete a heating operations.So, reciprocation cycle, until reach indoor heating requirement.
In this process, solar thermal collector 3 is equivalent to " the second compressor ", can carry out secondary heating pressurized treatments to refrigerant R410a.When refrigerant R410a is issued to setting value in the effect of solar thermal collector 3, feed back to control system, down conversion process is carried out to compressor 4, thus accomplish the energy consumption reducing compressor 4.
Four, heat night:
Fig. 4 is the connection diagram that in the embodiment of the present invention, solar airconditioning heats night.
The difference that itself and daytime heat is: now, and solar thermal collector 3 does not work, the first reversal valve D1 electromagnet power-off, and the first reversal valve Single port E and the first reversal valve four port H is interconnected, and the first reversal valve Two-port netwerk F and the first reversal valve three port G is airtight.Now gaseous coolant R410a is entered by the first reversal valve four port H, and the first reversal valve Single port E goes out, and flows through the second check valve K2, gets around solar thermal collector 3, carries out circulation and heats, until reach indoor to heat requirement.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. solar airconditioning, comprise by the compressor of pipeline communication, indoor set and off-premises station, described pipeline is built with the refrigerant for heat exchange, described off-premises station and described indoor set all have two ports, port corresponding on described off-premises station and described indoor set is by the first pipeline communication, it is characterized in that, described solar airconditioning also comprises solar thermal collector, the first reversal valve and the second reversal valve, and the outlet of described compressor is connected to the first reversal valve; The entrance of described compressor is connected to the second reversal valve; The import of described solar thermal collector is connected to described first reversal valve; The outlet of described solar thermal collector is connected to described second reversal valve by second pipe; Described second pipe is connected to described first reversal valve by bypass line, and on described off-premises station and described indoor set, another port is all connected to the second reversal valve.
2. solar airconditioning according to claim 1, is characterized in that: described first reversal valve and the second reversal valve are four-way reversing solenoid valve.
3. solar airconditioning according to claim 1 and 2, is characterized in that: also comprise a gas-liquid separator, and described gas-liquid separator is connected to described suction port of compressor end.
4. solar airconditioning according to claim 1 and 2, is characterized in that: the exit near described solar thermal collector on described bypass duct and described second pipe is provided with check valve.
5. solar airconditioning according to claim 3, is characterized in that: the exit near described solar thermal collector on described bypass duct and described second pipe is provided with check valve.
6. solar airconditioning according to claim 1 and 2, is characterized in that: described pipeline is copper pipe.
7. solar airconditioning according to claim 6, is characterized in that: the wall thickness of described copper pipe is greater than 0.8mm.
8. solar airconditioning according to claim 1 and 2, is characterized in that: described first pipeline is provided with capillary and one-way throttle valve along described off-premises station successively toward described indoor set direction.
9. solar airconditioning according to claim 3, is characterized in that: described first pipeline is provided with capillary and one-way throttle valve along described off-premises station successively toward described indoor set direction.
10. solar airconditioning according to claim 4, is characterized in that: described first pipeline is provided with capillary and one-way throttle valve along described off-premises station successively toward described indoor set direction.
CN201310087416.7A 2013-03-19 2013-03-19 Solar airconditioning CN103175262B (en)

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CN105627425A (en) * 2014-10-28 2016-06-01 广东美的制冷设备有限公司 Air conditioner
CN105627611A (en) * 2014-10-28 2016-06-01 广东美的制冷设备有限公司 Air conditioner
BR112017008485A2 (en) 2014-10-28 2018-01-09 Gd Midea Air Conditioning Equipment Co Ltd air conditioner
WO2016065867A1 (en) 2014-10-28 2016-05-06 广东美的制冷设备有限公司 Air conditioner
CN104534576B (en) * 2014-12-08 2018-08-17 广东美的制冷设备有限公司 Air conditioner
CN104534575B (en) * 2014-12-08 2018-05-22 广东美的制冷设备有限公司 Air conditioner
CN104501305B (en) * 2014-12-10 2018-03-27 广东美的制冷设备有限公司 Air conditioner
CN105588385A (en) * 2014-12-16 2016-05-18 青岛海信日立空调系统有限公司 Outdoor unit, air conditioning system and control method

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CN101270935A (en) * 2008-05-07 2008-09-24 中原工学院 Solar injection electric compression heat pump combined air-conditioning unit
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