CN103968594B - A kind of Air-Cooled Heat Pump Unit - Google Patents
A kind of Air-Cooled Heat Pump Unit Download PDFInfo
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- CN103968594B CN103968594B CN201410232311.0A CN201410232311A CN103968594B CN 103968594 B CN103968594 B CN 103968594B CN 201410232311 A CN201410232311 A CN 201410232311A CN 103968594 B CN103968594 B CN 103968594B
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Abstract
The invention provides a kind of Air-Cooled Heat Pump Unit, comprise: a compressor or multiple parallel connection compressor, two separate air cooling heat exchangers, two separate outdoor fans, water cooling heat exchanger and four cross valves, the present invention is by replacing two air cooling heat exchangers an original air cooling heat exchanger, make Air-Cooled Heat Pump Unit in the time of cryogenic refrigeration water, by cutting off an air cooling heat exchanger, reach the object that reduces air cooling heat exchanger area, thereby reduction system is returned the risk of liquid refrigerants; When Air-Cooled Heat Pump Unit is during at high temperature water heating, by using an air cooling heat exchanger as evaporimeter, a heat exchanger, as condenser, is realized system pressure and suction temperature control is maintained in the reasonable scope; When Air-Cooled Heat Pump Unit is during at low-temperature heating water, the in the situation that of needing defrost after water cooling heat exchanger frosting, by by an air cooling heat exchanger defrost, an air cooler continues to heat, and has met unit and can continue to provide the demand of hot water.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, relate to a kind of Air-Cooled Heat Pump Unit.
Background technology
Existing Air-Cooled Heat Pump Unit, air cooling heat exchanger or all making evaporimeter uses, or all doesCondenser uses. In the time of cryogenic refrigeration water, air cooling heat exchanger is all used as condenser, may make like thisCondensation effect is very good, and evaporimeter can not evaporate completely, thereby causes system to return liquid refrigerants, when serious, leadsCausing compressor burns; In the time of high temperature water heating, need compressor exhaust temperature high, at this moment system pressure is alsoCan be very high, and air cooling heat exchanger is all used as evaporimeter, evaporation effect is very good, causes suction temperature very high;In the time of low-temperature heating water, when air cooling heat exchanger is used as condenser, water cooling heat exchanger is used as evaporimeter, high temperatureThe refrigerant of high pressure melts frost in the time of air cooling heat exchanger condensation, and still, condensed refrigerant need to be at waterCold heat exchanger the inside evaporation endothermic, like this, the water of water cooling heat exchanger the inside has become cold water, causes unitCan not continue to offer hot water demand, thereby affect user's comfortableness requirement.
In summary, how to provide a kind of Air-Cooled Heat Pump Unit, effectively improve Air-Cooled Heat Pump Unit at low temperatureReliability when chilled water, high temperature water heating and low-temperature heating water is that those skilled in the art are urgently to be resolved hurrilyTechnical problem.
Summary of the invention
In view of this, the invention provides a kind of Air-Cooled Heat Pump Unit, to solve Air-Cooled Heat Pump Unit at low temperatureThe low problem of reliability when chilled water, high temperature water heating and low-temperature heating water.
A kind of Air-Cooled Heat Pump Unit, comprising:
A compressor or multiple parallel connection compressor;
The first air cooling heat exchanger;
The first outdoor fan, described the first outdoor fan is used for to described the first air cooling heat exchanger enhanced heat exchange;
The second air cooling heat exchanger, described the second air cooling heat exchanger and described the first air cooling heat exchanger are separate;
The second outdoor fan, described the second outdoor fan and described the first outdoor fan are separate, described inThe second outdoor fan is used for to described the second air cooling heat exchanger enhanced heat exchange;
Water cooling heat exchanger, the input of described water cooling heat exchanger respectively with described the first air cooling heat exchanger, instituteStating the second air cooling heat exchanger connects;
The first cross valve, the first end of described the first cross valve connects described compressor or described compression in parallelThe exhaust outlet of machine, the second end of described the first cross valve connects described the first air cooling heat exchanger, described firstCross valve is used for controlling described the first air cooling heat exchanger and uses or use as evaporimeter as condenser;
The second cross valve, the first end of described the second cross valve connects described compressor or described compression in parallelThe exhaust outlet of machine, the second end of described the second cross valve connects described the second air cooling heat exchanger, described secondCross valve is used for controlling described the second air cooling heat exchanger and uses or use as evaporimeter as condenser;
The 4th cross valve, the first end of described the 4th cross valve connects the output of described water cooling heat exchanger,The 3rd end of described the 4th cross valve and the common port of the 4th end are connected respectively the 3rd of described the first cross valveEnd and the common port of the 4th end, the 3rd end of described the second cross valve and the common port of the 4th end, described theFour cross valves are used for controlling described water cooling heat exchanger and use or use as evaporimeter as condenser;
The 3rd cross valve, the first end of described the 3rd cross valve connects described compressor or described compression in parallelThe exhaust outlet of machine, the second end of described the 3rd cross valve connects the second end of described the 4th cross valve, described inThe 3rd end of the 3rd cross valve and the common port of the 4th end be connected respectively described the 4th cross valve the 3rd end andThe gas returning port of the common port of the 4th end, described compressor or described parallel connection compressor, described the 3rd cross valveBe used for controlling described water cooling heat exchanger water heating.
Preferably, described the first air cooling heat exchanger passes through the first electric expansion valve and described water cooling heat exchangerInput connects, and described the first electric expansion valve is for controlling the refrigerant that flows through described the first air cooling heat exchangerFlow.
Preferably, described the second air cooling heat exchanger passes through the second electric expansion valve and described water cooling heat exchangerInput connects, and described the second electric expansion valve is for controlling the refrigerant that flows through described the second air cooling heat exchangerFlow.
Preferably, also comprise gas-liquid separator;
The import of described gas-liquid separator connects the public of the 3rd end of described the 3rd cross valve and the 4th endEnd, the outlet of described gas-liquid separator connects the gas returning port of described compressor or described parallel connection compressor.
Preferably, the gas returning port of described gas-liquid separator outlet and described compressor or described parallel connection compressorLink circuit on low pressure switch is installed.
Preferably, the common port of described the first cross valve, described the second cross valve and described the 3rd cross valveHigh-pressure switch is installed.
Preferably, described the first air cooling heat exchanger is identical with the model of described the second air cooling heat exchanger.
Preferably, described the first outdoor fan is identical with the model of described the second outdoor fan.
Preferably, described the first cross valve, described the second cross valve, described the 3rd cross valve and describedThe model of four cross valves is all identical.
Preferably, described the first cross valve, described the second cross valve, described the 3rd cross valve and describedThe model of four cross valves is incomplete same.
Can find out from above-mentioned technical scheme, the invention provides a kind of Air-Cooled Heat Pump Unit, comprise:A compressor or multiple parallel connection compressor, two separate air cooling heat exchangers, two mutually solelyVertical outdoor fan, water cooling heat exchanger and four cross valves, the present invention passes through two air cooling heat exchangersReplace an original air cooling heat exchanger, make Air-Cooled Heat Pump Unit in the time of cryogenic refrigeration water, by cutting off oneIndividual air cooling heat exchanger, reach the object that reduces air cooling heat exchanger area, thereby reduction system is returned liquid refrigerantsRisk; When Air-Cooled Heat Pump Unit is during at high temperature water heating, by using an air cooling heat exchanger as evaporationDevice, a heat exchanger, as condenser, is realized system pressure and suction temperature control is maintained rationallyIn scope; When Air-Cooled Heat Pump Unit is during at low-temperature heating water, after water cooling heat exchanger frosting, need defrostIn situation, by by an air cooling heat exchanger defrost, an air cooler continues to heat, and having met unit canTo continue to provide the demand of hot water, thereby ensure user's comfort level. Therefore, wind provided by the inventionCold-heat pump unit effectively improves Air-Cooled Heat Pump Unit at cryogenic refrigeration water, high temperature water heating and low-temperature heating waterTime reliability.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,Do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the disclosed a kind of Air-Cooled Heat Pump Unit of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried outDescribe clearly and completely, obviously, described embodiment is only the present invention's part embodiment, andNot whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not doingGo out the every other embodiment obtaining under creative work prerequisite, all belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of Air-Cooled Heat Pump Unit, to solve Air-Cooled Heat Pump Unit in low temperature systemThe low problem of reliability when cold water, high temperature water heating and low-temperature heating water.
Referring to Fig. 1, the embodiment of the invention discloses a kind of structural representation of Air-Cooled Heat Pump Unit, air-cooled heatPump assembly comprises:
A compressor 1 or multiple parallel connection compressor, for example Fig. 1 illustrates two compressions that are connected in parallelMachine 1;
The first air cooling heat exchanger 2;
The first outdoor fan 3, the first outdoor fans 3 are for giving the first air cooling heat exchanger 2 enhanced heat exchanges;
The second air cooling heat exchanger 4, the second air cooling heat exchangers 4 and the first air cooling heat exchanger 2 are separate;
The second outdoor fan 5, the second outdoor fans 5 and the first outdoor fan 3 are separate, and second is outdoorBlower fan 5 is for giving the second air cooling heat exchanger semi-finals heat exchange;
Water cooling heat exchanger 6, the input of water cooling heat exchanger 6 respectively with the first air cooling heat exchanger 2, the second windCold heat exchanger 4 connects;
Wherein, the import of water cooling heat exchanger 6 current and exporting in Fig. 1 shown in arrow.
The first end D of the first cross valve 7, the first cross valves 7 connects compressor 1 or multiple in parallel pressureThe exhaust outlet of contracting machine, the second end E of the first cross valve 7 connects the first air cooling heat exchanger 2, the first cross valves7 use or use as evaporimeter as condenser for controlling the first air cooling heat exchanger 2;
The first end D of the second cross valve 8, the second cross valves 8 connects compressor 1 or multiple in parallel pressureThe exhaust outlet of contracting machine, the second end E of the second cross valve 8 connects the second air cooling heat exchanger 4, the second cross valves8 use or use as evaporimeter as condenser for controlling the second air cooling heat exchanger 4;
The first end D of the 4th cross valve 9, the four cross valves 9 connects the output of water cooling heat exchanger 6,The 3rd end C of the 4th cross valve 9 and the common port of the 4th end S are connected respectively the 3rd of the first cross valve 7End C and the common port of the 4th end S, the 3rd end C of the second cross valve 8 and the common port of the 4th end S,The 4th cross valve 9 uses or uses as evaporimeter as condenser for controlling water cooling heat exchanger 6;
The first end D of the 3rd cross valve 10, the three cross valves 10 connects compressor 1 or multiple parallel connectionThe exhaust outlet of compressor, the second end E of the 3rd cross valve 10 connects the second end E of the 4th cross valve 9,The 3rd end C of the 3rd cross valve 10 and the common port of the 4th end S are connected respectively the 3rd of the 4th cross valve 9Common port, compressor 1 or the gas returning port of multiple parallel connection compressors of end C and the 4th end S, the three or fourLogical valve 10 is for controlling water cooling heat exchanger 6 water heatings.
It should be noted that cross valve (for example above-mentioned the first cross valve 7, the second cross valve the 8, the 34Logical valve 10 and the 4th cross valve 9) in power down, first end D and the 3rd end C conducting, the second endE and the 4th end S conducting;
Cross valve in powering on, first end D and the second end E conducting, the 3rd end C and the 4th end SConducting.
Preferably, in the present embodiment, water cooling heat exchanger 6 can be plate type heat exchanger, double-tube heat exchanger orIt is shell and tube exchanger etc.
In summary it can be seen, the present invention is by two air cooling heat exchangers being replaced to an original air cooling heat exchanger,Make Air-Cooled Heat Pump Unit in the time of cryogenic refrigeration water, by cutting off an air cooling heat exchanger, reach minimizing windThe object of cold heat exchanger area, thus reduction system is returned the risk of liquid refrigerants; When Air-Cooled Heat Pump Unit existsWhen high temperature water heating, by using an air cooling heat exchanger as evaporimeter, a heat exchanger is as condenser,Realize system pressure and suction temperature control are maintained in the reasonable scope; When Air-Cooled Heat Pump Unit is lowTemperature is when water heating, the in the situation that of needing defrost after water cooling heat exchanger frosting, by by an air-cooled heat exchangeDevice defrost, an air cooler continues to heat, and met unit and can continue to provide the demand of hot water, therebyEnsure user's comfort level. Therefore, Air-Cooled Heat Pump Unit provided by the invention effectively improves air-cooled heat pumpThe reliability of unit in the time of cryogenic refrigeration water, high temperature water heating and low-temperature heating water.
It will be appreciated by persons skilled in the art that as ensureing the first air cooling heat exchanger 2 and the second air-cooled changingHot device 4 has good refrigeration in the time using as condenser, or has use as evaporimeter very much timeGood heating effect, therefore, controls and flows through the cold of the first air cooling heat exchanger 2 and the second air cooling heat exchanger 4Matchmaker's flow is most important.
Therefore, the first air cooling heat exchanger 2 input with water cooling heat exchanger 6 by the first electric expansion valve 11End connects, and the first electric expansion valve 11 is for controlling the cold medium flux that flows through the first air cooling heat exchanger 2.
In like manner, the second air cooling heat exchanger 4 input with water cooling heat exchanger 6 by the second electric expansion valve 12End connects, and the second electric expansion valve 12 is for controlling the cold medium flux that flows through the second air cooling heat exchanger 4.
For further optimizing above-described embodiment, also comprise: gas-liquid separator 13;
The 3rd end C of import connection the 3rd cross valve 10 of gas-liquid separator 13 and the 4th end S's is publicEnd, the outlet of gas-liquid separator 13 connects the gas returning port of compressor 1 or parallel connection compressor.
Gas-liquid separator 13 is for entering the gaseous coolant of the gas returning port that flows into compressor 1 or parallel connection compressorRow gas-liquid separation.
Air-Cooled Heat Pump Unit is specific as follows in the loop control of chilled water and water heating:
Air-Cooled Heat Pump Unit in the time of chilled water, the first cross valve 7 and the second cross valve 8 power down, the first electricitySub-expansion valve 11 and the second electric expansion valve 12 are opened under the control of electric-control system, the 4th cross valve 9Power down, the 3rd cross valve 10 power on. A refrigerant part for the HTHP that compressor 1 is got rid of is to the first windAfter cold heat exchanger 2 condensations, through the first electric expansion valve 11 reducing pressure by regulating flows, a part is to the second air cooling heat exchangerAfter 4 condensations through the second electric expansion valve 12 reducing pressure by regulating flows, the liquid state after two air cooling heat exchanger reducing pressure by regulating flowsRefrigerant, to water cooling heat exchanger 6 devaporation heat absorptions, becomes gaseous coolant through the 4th cross valve 9 after evaporation endothermicGet back to gas-liquid separator 13, finally get back to compressor 1 and complete kind of refrigeration cycle, reach Air-Cooled Heat Pump Unit systemThe object of cold water.
Air-Cooled Heat Pump Unit in the time of hot water, the 3rd cross valve 10 power down, the 4th cross valve 9 powers on, firstElectric expansion valve 11, the second electric expansion valve 12 are opened under the control of electric-control system, the first cross valve 7,The second cross valve 8 powers on. The refrigerant of the HTHP that compressor 1 is got rid of is through the 3rd cross valve 10,After four cross valves 9, to water cooling heat exchanger 6 condensations, a part is through the first electric expansion valve 11 reducing pressure by regulating flowsAfter the first air cooling heat exchanger 2 evaporation endothermics, get back to gas-liquid separator 13, through the first cross valve 7 afterwardsPart after the second electric expansion valve 12 reducing pressure by regulating flows to after the second air cooling heat exchanger 4 evaporation endothermics throughThe second cross valve 8 is got back to gas-liquid separator 13, finally gets back to compressor 1 and completes and heat circulation, reaches windThe object of cold-heat pump unit water heating.
Air-Cooled Heat Pump Unit disclosed by the invention improves Air-Cooled Heat Pump Unit and heats at cryogenic refrigeration water, high temperatureThe detailed process of reliability when water and low-temperature heating water is as follows:
Air-Cooled Heat Pump Unit is in the time of cryogenic refrigeration water, and air-cooled side environment temperature is low, two air cooling heat exchangers withoutNeed all make condenser, now, can close an air cooling heat exchanger, such as closing the second air-cooled heat exchangeDevice 4, the first cross valve 7 power down of Air-Cooled Heat Pump Unit, the second cross valve 8 powers on, the first electronic expansionValve 11 is opened under the control of electric-control system, and the second electric expansion valve 12 is closed, and the 4th cross valve 9 fallsElectricity, the 3rd cross valve 10 power on. The refrigerant of the HTHP that compressor 1 is got rid of is all to the first air-cooled changingAfter hot device 2 condensations, through the first electric expansion valve 11 reducing pressure by regulating flows, refrigerant saves through the first air cooling heat exchanger 2Liquid refrigerants after stream step-down, to water cooling heat exchanger 6 devaporation heat absorptions, becomes gaseous coolant after evaporation endothermicGet back to gas-liquid separator 13 through the 4th cross valve 9, finally get back to compressor 1 and complete kind of refrigeration cycle, reachTo the object of Air-Cooled Heat Pump Unit chilled water. Also ensured the system of chilled water under low ambient temperature simultaneouslyReliability.
Wherein, because the second cross valve 8 powers on, the second electric expansion valve 12 is closed, and compressor 1 is got rid ofHTHP refrigerant fallen by capillary pipe plug the second cross valve 8 is interior, the refrigerant process that refrigeration stream is excessively a small amount ofCapillary is got back to gas-liquid separator 13, and refrigerant in the second air cooling heat exchanger 4 is through the second cross valve 8After get back to gas-liquid separator 13, refrigerant is namely equivalent to not circulate in the second air cooling heat exchanger 4.
Air-Cooled Heat Pump Unit is in the time of high temperature water heating, and water cooling heat exchanger 6 is made condenser, and air cooling heat exchanger is doneEvaporimeter, air-cooled side environment temperature is high, and evaporation effect is good, and compressor 1 delivery temperature is high, exhaust pressurePower is high, can increase like this condenser area, reduces evaporator area. Such as by the first air cooling heat exchanger 2As evaporimeter, the second air cooling heat exchanger 4 is as condenser, and water cooling heat exchanger 6 is as condenser. ControlProcess processed is as follows: the 3rd cross valve 10 power down, the 4th cross valve 9 powers on, the first electric expansion valve 11,The second electric expansion valve 12 is opened under the control of electric-control system, and the first cross valve 7 powers on, the second four-wayValve 8 power down, the HTHP refrigerant part that compressor 1 is got rid of is through the 3rd cross valve the 10, the 44After logical valve 9 to the interior condensation of water cooling heat exchanger 6, a part after the second cross valve 8 to the second air-cooled changingAfter hot device 4, through the second electric expansion valve 12, two-way refrigerant is finally the second electric expansion valve 12 and firstBetween electric expansion valve 11 join, then after the first electric expansion valve 11 reducing pressure by regulating flows to the first windThe interior evaporation endothermic of cold heat exchanger 2, after get back to pressure get back to gas-liquid separator 13 after the first cross valve 7 afterContracting machine 1 completes whole refrigerant circulation.
Air-Cooled Heat Pump Unit is in the time of low-temperature heating water, and basic controlling is with Air-Cooled Heat Pump Unit water heating, stillBecause air-cooled side environment temperature is low, air cooling heat exchanger meeting frosting, if two air cooling heat exchangers go out frost simultaneouslyCan cause the water in water cooling heat exchanger 6 to become cold water, have influence on like this Air-Cooled Heat Pump Unit and can not continue systemHot water, and then affect user's comfortableness. In the time that air cooling heat exchanger needs defrost, can air-cooled changingHot device defrosts as condenser, and another air cooling heat exchanger is as evaporimeter, thereby guarantee system continuesWater heating. Wherein, the defrost process when process of air cooling heat exchanger defrost is shown in Air-Cooled Heat Pump Unit water heating,Repeat no more herein.
In summary it can be seen, the present invention is by two air cooling heat exchangers being replaced to an original air cooling heat exchanger,Make Air-Cooled Heat Pump Unit in the time of cryogenic refrigeration water, by cutting off an air cooling heat exchanger, reach minimizing windThe object of cold heat exchanger area, thus reduction system is returned the risk of liquid refrigerants; When Air-Cooled Heat Pump Unit existsWhen high temperature water heating, by using an air cooling heat exchanger as evaporimeter, a heat exchanger is as condenser,Realize system pressure and suction temperature control are maintained in the reasonable scope; When Air-Cooled Heat Pump Unit is lowTemperature is when water heating, the in the situation that of needing defrost after water cooling heat exchanger frosting, by by an air-cooled heat exchangeDevice defrost, an air cooler continues to heat, and met unit and can continue to provide the demand of hot water, therebyEnsure user's comfort level. Therefore, Air-Cooled Heat Pump Unit provided by the invention effectively improves air-cooled heat pumpThe reliability of unit in the time of cryogenic refrigeration water, high temperature water heating and low-temperature heating water.
It will be appreciated by persons skilled in the art that hypertonia in Air-Cooled Heat Pump Unit or all too lowCan affect the stable operation of Air-Cooled Heat Pump Unit. Therefore, the present invention can for ensureing that Air-Cooled Heat Pump Unit is stableThe operation of leaning on, in the above-described embodiments:
On the link circuit of gas-liquid separator 13 outlet and the gas returning port of compressor 1 or parallel connection compressor, pacifyLow pressure switch 21 is housed.
Gas pressure between gas-liquid separator 13 outlets and the gas returning port of compressor 1 or parallel connection compressorDuring lower than preset value, low pressure switch 21 disconnects automatically, and sends a pressure signal to electric-control system,Thereby electric-control system is taked corresponding safeguard measure according to the pressure signal receiving, and for example, turns off compressionMachine 1.
The common port of the first cross valve 7, the second cross valve 8 and the 3rd cross valve 10 is provided with high-pressureSwitch 22.
When the pressure of the gas of getting rid of when compressor 1 or parallel connection compressor was looked into preset value, high-pressure is openedClose 22 and automatically disconnect, and send a pressure signal to electric-control system, thereby electric-control system is according to receivingPressure signal take corresponding safeguard measure, for example, turn off compressor 1.
It should be noted is that, in above-described embodiment, the first air cooling heat exchanger 2 and the second air-cooled heat exchangeThe model of device 4 can be identical, also can be different. Wherein, preferred same model.
The model of the first outdoor fan 3 and the second outdoor fan 5 can be identical, also can be different, herein notLimit.
In like manner, the first cross valve 7, the second cross valve 8, the 3rd cross valve 10 and the 4th cross valve 9Model can be all identical or entirely not identical, or incomplete same, do not limit herein.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stressesBe and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe present invention. To be aobvious and easy for those skilled in the art to the multiple amendment of these embodimentSee, General Principle as defined herein can be in the situation that not departing from the spirit or scope of the present invention,Realize in other embodiments. Therefore, the present invention will can not be restricted to these embodiment shown in this article,But to meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an Air-Cooled Heat Pump Unit, is characterized in that, comprising:
A compressor or multiple parallel connection compressor;
The first air cooling heat exchanger;
The first outdoor fan, described the first outdoor fan is used for to described the first air cooling heat exchanger enhanced heat exchange;
The second air cooling heat exchanger, described the second air cooling heat exchanger and described the first air cooling heat exchanger are separate;
The second outdoor fan, described the second outdoor fan and described the first outdoor fan are separate, described inThe second outdoor fan is used for to described the second air cooling heat exchanger enhanced heat exchange;
Water cooling heat exchanger, the input of described water cooling heat exchanger respectively with described the first air cooling heat exchanger, instituteStating the second air cooling heat exchanger connects;
The first cross valve, the first end of described the first cross valve connects described compressor or described compression in parallelThe exhaust outlet of machine, the second end of described the first cross valve connects described the first air cooling heat exchanger, described firstCross valve is used for controlling described the first air cooling heat exchanger and uses or use as evaporimeter as condenser;
The second cross valve, the first end of described the second cross valve connects described compressor or described compression in parallelThe exhaust outlet of machine, the second end of described the second cross valve connects described the second air cooling heat exchanger, described secondCross valve is used for controlling described the second air cooling heat exchanger and uses or use as evaporimeter as condenser;
The 4th cross valve, the first end of described the 4th cross valve connects the output of described water cooling heat exchanger,The 3rd end of described the 4th cross valve and the common port of the 4th end are connected respectively the 3rd of described the first cross valveEnd and the common port of the 4th end and the 3rd end of described the second cross valve and the common port of the 4th end, described inThe 4th cross valve is used for controlling described water cooling heat exchanger and uses or use as evaporimeter as condenser;
The 3rd cross valve, the first end of described the 3rd cross valve connects described compressor or described compression in parallelThe exhaust outlet of machine, the second end of described the 3rd cross valve connects the second end of described the 4th cross valve, described inThe 3rd end of the 3rd cross valve and the common port of the 4th end be connected respectively described the 4th cross valve the 3rd end andThe gas returning port of the common port of the 4th end and described compressor or described parallel connection compressor, described the 3rd four-wayValve is used for controlling described water cooling heat exchanger water heating.
2. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, described the first air-cooled changingHot device is connected with the input of described water cooling heat exchanger by the first electric expansion valve, and described the first electronics is swollenSwollen valve is for controlling the cold medium flux that flows through described the first air cooling heat exchanger.
3. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, described the second air-cooled changingHot device is connected with the input of described water cooling heat exchanger by the second electric expansion valve, and described the second electronics is swollenSwollen valve is for controlling the cold medium flux that flows through described the second air cooling heat exchanger.
4. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, also comprises gas-liquid separationDevice;
The import of described gas-liquid separator connects the public of the 3rd end of described the 3rd cross valve and the 4th endEnd, the outlet of described gas-liquid separator connects the gas returning port of described compressor or described parallel connection compressor.
5. Air-Cooled Heat Pump Unit according to claim 4, is characterized in that, described gas-liquid separatorOn the link circuit of the gas returning port of outlet and described compressor or described parallel connection compressor, low pressure is installedSwitch.
6. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, described the first cross valve,The common port of described the second cross valve and described the 3rd cross valve is provided with high-pressure switch.
7. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, described the first air-cooled changingHot device is identical with the model of described the second air cooling heat exchanger.
8. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, described the first outdoor windMachine is identical with the model of described the second outdoor fan.
9. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, described the first cross valve,The model of described the second cross valve, described the 3rd cross valve and described the 4th cross valve is all identical.
10. Air-Cooled Heat Pump Unit according to claim 1, is characterized in that, described the first four-wayThe model of valve, described the second cross valve, described the 3rd cross valve and described the 4th cross valve is incomplete same.
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| CN201410232311.0A CN103968594B (en) | 2014-05-28 | 2014-05-28 | A kind of Air-Cooled Heat Pump Unit |
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| CN104180455A (en) * | 2014-09-01 | 2014-12-03 | 广东志高暖通设备股份有限公司 | Air cooling heat pump unit |
| CN104180559A (en) * | 2014-09-01 | 2014-12-03 | 广东志高暖通设备股份有限公司 | Multi-unit system |
| CN104180560A (en) * | 2014-09-01 | 2014-12-03 | 广东志高暖通设备股份有限公司 | Multi-unit system |
| CN105674614A (en) * | 2016-04-06 | 2016-06-15 | 广东志高暖通设备股份有限公司 | Air-cooled heat pump unit |
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| CN1210534C (en) * | 2003-12-26 | 2005-07-13 | 浙江大学 | Split heat pump air conditioner system |
| CN102778087B (en) * | 2012-07-11 | 2014-04-09 | 广州万宝集团有限公司 | Transcritical CO2 heat pump air heating system and air cooling device |
| CN102901168A (en) * | 2012-09-28 | 2013-01-30 | 中国扬子集团滁州扬子空调器有限公司 | Air-cooled heat pump cold/hot water machine set for improving partial load performance and control method thereof |
| CN202973694U (en) * | 2012-12-17 | 2013-06-05 | 广州科力新能源有限公司 | Double-fin double-fan hot pump system capable of defrosting in complementary mode |
| CN203286825U (en) * | 2013-05-15 | 2013-11-13 | 东南大学 | Defrosting device of air source heat pump |
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