CN100501256C - Refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit - Google Patents
Refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit Download PDFInfo
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- CN100501256C CN100501256C CNB2006100982994A CN200610098299A CN100501256C CN 100501256 C CN100501256 C CN 100501256C CN B2006100982994 A CNB2006100982994 A CN B2006100982994A CN 200610098299 A CN200610098299 A CN 200610098299A CN 100501256 C CN100501256 C CN 100501256C
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Abstract
The invention discloses a refrigerant mechanical circulation ice-storage heat-pump air-conditioning unit which comprises an outdoor unit and an indoor unit. The invention belongs to the technical field of cold storage type heat pump air conditioning. A cold storage device is additionally provided with a working substance pump and a circulation reservoir. When in a cold relief operation, the working substance pump is utilized to raise the pressure on the liquid freezing medium after condensed and liquefied by an ice barrel and the liquid freezing medium after condensed and liquefied is transmitted into each indoor heat exchanger of the indoor unit through a freezing medium pipeline to supply cold to form freezing medium mechanical circulation old supply. After the ice barrel melts completely, the freezing medium is supercooled by the lower temperature water of the ice barrel so as to improve the unit performance. The invention effectively enlarges the transfer rate for peak electrical load of the air conditioner system, increasing the effective cold storage amount of the ice barrel, enlarging the function selection of the unit to lead the unit to be more flexible and improving the operation economy and reliability of the system. The invention is suitable for the application occasions for supplying cold and hot by taking a wind cooling( or air heating ) heat exchanger as a hanging or a packaged air conditioner unit of the heat exchanger of the indoor machine in the areas with a power peak-valley price difference.
Description
One technical field
The present invention relates to a kind of refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit, belong to cool-storage type heat pump air conditioner technical field.Be specially adapted to exist electric power peak valley price difference area, be the application scenario that the wall-hanging of indoor set or cabinet air-conditioner unit carry out cooling and heating with air-cooled (or adding hot-air) heat exchanger.
Two background technologies
Along with improving constantly of social development and living standards of the people, urban electric power consumption increases substantially, and particularly the peak power load growth is too fast, causes peak period electricity shortage phenomenon to take place again and again, and valley power is more than needed.Therefore, " peak load shifting " of electrical network is problem demanding prompt solution.And the air-conditioning system that ensures as the human settlement, its electric load generally concentrates on electric power peak period, and the low-valley interval electricity consumption is very few, and air conditioning electricity has the potentiality of very big peak load shifting to urban distribution network.Along with the enforcement of electric power demand side time-of-use tariffs policy, the ice-storage air-conditioning unit has obtained development fast, and has formed some patented technologies and product.A kind of employing cold-producing medium is crossed cold interior ice-melt releasing cold way cold accumulation air-conditioner device and calendar year 2001 " HVAC " has been published the cold excessively family formula ice-chilling air conditioning system (Zhou Xiaotang of employing cold-producing medium as disclosing among the Chinese patent ZL97236089.1, Li Jisheng, Zhao Qingzhu, the development and the exploitation of family formula ice-chilling air conditioning system, " HVAC ", 2001,31 (4)), this cold-producing medium Overcold ice-chilling air conditioning system constitutes by compressor, indoor heat exchanger (evaporimeter), outdoor heat exchanger (condenser) and the ice making subcooler be made up of ice-reserving container and melt ice on coil.In the correlation technique of above-mentioned announcement, common feature with following several aspects: during (1) refrigerating operaton, each system all utilizes night cheap electric power that cold is stored in the ice-reserving bucket, daytime is during the air-conditioned room cooling, high pressure liquid refrigerant after utilizing cold that the ice-reserving bucket stores to condenser carries out cold excessively significantly, and the condensation temperature of reduction system, to reach the purpose that reduces refrigeration system cooling operation energy consumption; (2) during heating operation, utilize valley power to heat and heat is stored in the ice-reserving bucket,, utilize the heat that stores in the ice-reserving bucket to improve the evaporating temperature of system when system daytime during to the air-conditioned room heat supply, the power consumption of unit reaches the transfer of air conditioning electricity peak load when reducing heating operation; (3) under cooling and heat supply running operating mode, the cold of low-valley interval preparation or heat just are used for the state of cold-producing medium in the change system, and when air-conditioning cooling or heat supply running, compressor must put into operation by day.This technical characterstic causes air-conditioning unit demand to the peak power load when cooling or heat supply running bigger, and is not remarkable to " peak load shifting " effect of electric power, is unfavorable for reducing the operating cost of heat supply of air-conditioning unit or cooling; Increase the air-conditioning machine set compressor simultaneously in the running time in heat supply and cooling season, influenced the service life of compressor; In addition, because unit need put into operation at electric power compressor peak period of cooling and heat supply, so the reliability of air-conditioned room cooling and heat supply is subjected to the restriction of supply of electric power peak period, can not give full play to the technical advantage of icing cold-storage.
Three summary of the invention
The object of the present invention is to provide a kind of refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit, with solve in the prior art cold-producing medium cross cold in during the operation of ice-melt releasing cold way cooling compressor put into operation, make air-conditioning system peak power workload demand reach the problem of system's performance driving economy and poor reliability greatly, to reach economy, the reliability that improves the ice-storage air-conditioning unit operation and to increase the purpose that air-conditioning peak power load shifts.
Realize the technical solution of the object of the invention: a kind of refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit, comprise that is used to a compressor that sucks gaseous refrigerant and compress output, the exhaust outlet of this compressor connects a four-way change-over valve, between the air entry of the return-air mouth of this four-way change-over valve and compressor, be connected gas-liquid separator, the exhaust outlet of this four-way change-over valve connects an outdoor heat exchanger, and the outlet of this outdoor heat exchanger connects one by cooling check valve, heat and use electric expansion valve, heat and use check valve, check valve/expansion valve/electromagnetic valve component that first magnetic valve and three-way solenoid valve are formed; The outlet of described cooling check valve is connected with the inlet of high pressure reservoir/device for drying and filtering assembly of being made up of high pressure reservoir, device for drying and filtering with the described outlet that heats with check valve; The cold-storage that is made of with the electric expansion valve and second magnetic valve cold-storage connects in the outlet of high pressure reservoir/device for drying and filtering assembly and the check valve/expansion valve/electromagnetic valve component first magnetic valve and heats with the port between the electric expansion valve with the inlet of electric expansion valve/electromagnetic valve component, and this cold-storage connects the inlet of ice-reserving bucket with the outlet of electric expansion valve/electromagnetic valve component; The outlet of described ice-reserving bucket connects the circulation reservoir, the bottom of this circulation reservoir connects the inlet of working medium pump, this working medium delivery side of pump is connected with the inflow end a of three-way solenoid valve in check valve/expansion valve/electromagnetic valve component by refrigerant line, the gaseous phase outlet of described circulation reservoir by refrigerant line and the 3rd magnetic valve and indoor heat exchanger outlet road refrigerant line and the 4th magnetic valve parallel connection after be connected with the air entry of four-way change-over valve; The inlet of cooling electric expansion valve/electromagnetic valve component of being made up of cooling electric expansion valve, the 5th magnetic valve connects the outflow end b of three-way solenoid valve in check valve/expansion valve/electromagnetic valve component, the outlet of this cooling electric expansion valve/electromagnetic valve component connects the inlet of indoor heat exchanger, and inlet and the cold-storage of another road of this indoor heat exchanger outlet by the 6th magnetic valve and refrigerant line and ice-reserving bucket is connected with the outlet of electric expansion valve/electromagnetic valve component.
In the refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit of the present invention, described ice-reserving bucket, circulation reservoir, working medium pump, the 3rd magnetic valve place outdoor, and constitute outdoor unit with compressor, outdoor heat exchanger, check valve/expansion valve/electromagnetic valve component, high pressure reservoir/device for drying and filtering assembly, cold-storage with electric expansion valve/electromagnetic valve component; Described indoor heat exchanger, cooling electric expansion valve/electromagnetic valve component, the 6th magnetic valve, the 4th magnetic valve constitute indoor units.
In the refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit of the present invention, described ice-reserving bucket, circulation reservoir, working medium pump, the 3rd magnetic valve place indoor, and constitute indoor units with indoor heat exchanger, cooling electric expansion valve/electromagnetic valve component, the 6th magnetic valve, the 4th magnetic valve; Described compressor, outdoor heat exchanger, check valve/expansion valve/electromagnetic valve component, high pressure reservoir/device for drying and filtering assembly, cold-storage constitute outdoor unit with electric expansion valve/electromagnetic valve component.
The present invention compared with prior art, its remarkable advantage is: the gaseous refrigerant condensation liquefaction after (1) adopts cold that the ice-reserving bucket stores to the indoor heat exchanger endothermic gasification, and drive cold-producing medium by working medium pump and between indoor heat exchanger and ice-reserving bucket, circulate, the realization refrigerant mechanical circulation type is released cold cooling, make compressor need not to put into operation, effectively shifted air-conditioning electric power peak load in the electric power peak cooling period; (2) adopt working medium pump to drive the cold-producing medium mechanical cycles and release cold cooling, compressor does not move releasing the cold operation period, has improved reliability of system operation and economy; (3) not only can be implemented in the ice-reserving bucket has when ice to adopt working medium pump driving cold-producing medium mechanical cycles to release cold cooling, the high-temperature liquid state cold-producing medium carried out cold to improve the runnability of unit after simultaneously can realizing adopting in the ice bucket water at low temperature to condensation after ice bucket ice-melt fully, effectively increased the effective cold storage capacity of ice-reserving bucket, the function that has enlarged unit is selected, and makes unit operation more flexible.Have electric power peak valley price difference area, be the application scenario that the wall-hanging of indoor set heat exchanger or cabinet air-conditioner unit carry out cooling and heating with air-cooled (or adding hot-air) heat exchanger, the present invention is particularly suitable.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Four description of drawings
Fig. 1 is a kind of refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit embodiment schematic diagram provided by the invention.
Fig. 2 is an another kind of refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit embodiment schematic diagram provided by the invention.
The sequence number of each parts and title are as follows among the figure:
1-compressor; 2-four-way change-over valve; 3-outdoor heat exchanger; 4-cooling check valve; 5-high pressure reservoir; 6-device for drying and filtering; 7-the first magnetic valve; 10-the five magnetic valve; 12-the six magnetic valve; 13-the four magnetic valve; 14-the three magnetic valve; 17-the second magnetic valve; 8-three-way solenoid valve; 9-cooling electric expansion valve; 11-indoor heat exchanger; 15-gas-liquid separator; 16-cold-storage electric expansion valve; 18-ice-reserving bucket; 19-circulation reservoir; 20-working medium pump; 21-heat and use check valve; 22-heat and use electric expansion valve; 23-indoor units; 24-outdoor unit.
Five specific embodiment
In conjunction with Fig. 1 and Fig. 2, refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit of the present invention, comprise that is used to a compressor 1 that sucks gaseous refrigerant and compress output, the exhaust outlet of this compressor 1 connects a four-way change-over valve 2, between the air entry of the return-air mouth of this four-way change-over valve 2 and compressor 1, be connected gas-liquid separator 15, the exhaust outlet of this four-way change-over valve 2 connects an outdoor heat exchanger 3, and the outlet of this outdoor heat exchanger 3 connects one by cooling check valve 4, heat with electric expansion valve 22, heat with check valve 21, check valve/expansion valve/electromagnetic valve component that first magnetic valve 7 and three-way solenoid valve 8 are formed; The outlet of described cooling check valve 4 is connected with the inlet of high pressure reservoir/device for drying and filtering assembly of being made up of high pressure reservoir 5, device for drying and filtering 6 with the outlet that heats with check valve 21; The cold-storage that is made of with the electric expansion valve 16 and second magnetic valve 17 cold-storage connects in the outlet of high pressure reservoir/device for drying and filtering assembly and the check valve/expansion valve/electromagnetic valve component first magnetic valve 7 and heats with the port between the electric expansion valve 22 with the inlet of electric expansion valve/electromagnetic valve component, and this cold-storage connects the inlet of ice-reserving bucket 18 with the outlet of electric expansion valve/electromagnetic valve component; The outlet of described ice-reserving bucket 18 connects circulation reservoir 19, the bottom of this circulation reservoir 19 connects the inlet of working medium pump 20, the outlet of this working medium pump 20 is connected with the inflow end a of three-way solenoid valve 8 in check valve/expansion valve/electromagnetic valve component by refrigerant line, and the gaseous phase outlet of described circulation reservoir 19 is connected with the air entry of four-way change-over valve 2 with one road refrigerant line and the 4th magnetic valve 13 backs in parallel of indoor heat exchanger 11 outlets by refrigerant line and the 3rd magnetic valve 14; The inlet of cooling electric expansion valve/electromagnetic valve component of being made up of cooling electric expansion valve 9, the 5th magnetic valve 10 connects the outflow end b of three-way solenoid valve 8 in check valve/expansion valve/electromagnetic valve component, the outlet of this cooling electric expansion valve/electromagnetic valve component connects the inlet of indoor heat exchanger 11, and inlet and the cold-storage of another road of these indoor heat exchanger 11 outlets by the 6th magnetic valve 12 and refrigerant line and ice-reserving bucket 18 is connected with the outlet of electric expansion valve/electromagnetic valve component.Wherein, described indoor heat exchanger 11 can be made of an air-cooled heat exchanger or water-cooled heat exchanger, perhaps is made of a plurality of air-cooled heat exchangers or water-cooled heat exchanger parallel connection.Described outdoor heat exchanger 3 can adopt air-cooled heat exchanger or water-cooled heat exchanger.Can there be dual mode to be arranged to indoor units and outdoor unit for above-mentioned refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit, specifically sees the explanation of following embodiment.
Embodiment 1: in conjunction with Fig. 1, in the refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit of the present invention, the outlet of gas-liquid separator 15 is linked to each other with the air entry of compressor 1, the exhaust outlet of compressor 1 links to each other with the air inlet of four-way change-over valve 2, the return-air mouth of four-way change-over valve 2 is connected with the air inlet of gas-liquid separator 15, and two other interface of four-way change-over valve 2 links to each other with the inlet of outdoor heat exchanger 3 and the gaseous refrigerant pipeline that is connected with the 4th magnetic valve 13, the 3rd magnetic valve 14 respectively; The outlet of outdoor heat exchanger 3 with by cooling check valve 4, heat with electric expansion valve 22, the inlet that heats check valve/expansion valve/electromagnetic valve component of forming with check valve 21, first magnetic valve 7, three-way solenoid valve 8 and be connected, the inlet of cooling electric expansion valve/electromagnetic valve component that other four outlets of check valve/expansion valve/electromagnetic valve component are formed with the entry and exit of high pressure reservoir/device for drying and filtering assembly of being made up of high pressure reservoir 5, device for drying and filtering 6, by cooling electric expansion valve 9, the 5th magnetic valve 10 respectively and the outlet of working medium pump 20 are connected; The outlet of cooling electric expansion valve/electromagnetic valve component links to each other with the inlet of indoor heat exchanger 11, the outlet of indoor heat exchanger 11 is leaded up to the 4th magnetic valve 13 and gaseous refrigerant pipeline and is linked to each other with the air entry of four-way change-over valve 2, another road by the 6th magnetic valve 12 and refrigerant line be connected in linking to each other with the outlet of electric expansion valve/electromagnetic valve component and the inlet of ice-reserving bucket 18 with the cold-storage that electric expansion valve 16, second magnetic valve 17 constitute of high pressure reservoir/device for drying and filtering assembly outlet by cold-storage; The outlet of ice-reserving bucket 18 is connected with the suction inlet of circulation reservoir 19, and the gaseous phase outlet of circulation reservoir 19 is by the 3rd magnetic valve 14 and the air entry that is connected in four-way change-over valve 2 after the export pipeline of indoor heat exchanger 11 is in parallel; The suction inlet of working medium pump 20 is connected in the bottom of circulation reservoir 19, and the outlet of working medium pump 20 is connected in the inflow end a of three-way solenoid valve 8.Connect and compose refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit by above-mentioned each parts.Wherein, described ice-reserving bucket 18, circulation reservoir 19, working medium pump 20, the 3rd magnetic valve 14 place indoor, and constitute indoor units 23 with indoor heat exchanger 11, cooling electric expansion valve/electromagnetic valve component, the 6th magnetic valve 12, the 4th magnetic valve 13; Described compressor 1, outdoor heat exchanger 3, check valve/expansion valve/electromagnetic valve component, high pressure reservoir/device for drying and filtering assembly, cold-storage constitute outdoor unit 24 with electric expansion valve/electromagnetic valve component.In this ice storage cold-hot pump air-conditioning unit, indoor heat exchanger 11, outdoor heat exchanger 3 are adopted air-cooled heat exchanger.
This ice storage cold-hot pump air-conditioning system can realize cold-storage, the independent cooling of unit, ice-reserving bucket ice-melt cooling, four kinds of operational modes of unit Winter heat supply according to the different open and-shut modes of four-way change-over valve 2, first magnetic valve 7, the 5th magnetic valve 10, the 6th magnetic valve 12, the 4th magnetic valve 13, the 3rd magnetic valve 14, second magnetic valve 17 and three-way solenoid valve 8.
(a) cool-storage in summer operational mode
When system during at the cold-storage mode operation; the fan operation of compressor 1, outdoor heat exchanger 3; first magnetic valve 7, the 6th magnetic valve 12, the 4th magnetic valve 13, second magnetic valve 17, heat with electric expansion valve 22 outage and close; four-way change-over valve 2 outages; the ac conducting of three-way solenoid valve 8; the 14 energising conductings of the 3rd magnetic valve, working medium pump 20, indoor heat exchanger fan are shut down.The compressed machine 1 boil down to high temperature and high pressure gaseous refrigerant of the gaseous refrigerant of low-temp low-pressure, flow into outdoor heat exchanger 3 through four-way change-over valve 2 and be condensed into the cold anticyclone liquid state, flow into high pressure reservoir 5 by cooling check valve 4 then, high pressure liquid refrigerant drying filter 6 backs of being flowed out by high pressure reservoir 5 are the hold-over coil that low-temp low-pressure gas-liquid two-phase cold-producing medium enters ice-reserving bucket 18 at cold-storage with electric expansion valve 16 throttlings, the heat of vaporization that absorbs water in the ice-reserving bucket 18 is a low-pressure gaseous refrigerant, make the coil surface water freezing of ice-reserving bucket 18 simultaneously, realize the purpose of ice cold-storage; The low-temperature low-pressure refrigerant that is flowed out by ice-reserving bucket 18 returns compressor through circulation reservoir 19, the 3rd magnetic valve 14, four-way change-over valve 2 and gas-liquid separator 15, finishes the cold-storage circulation.
(b) ice-reserving bucket ice-melt cooling operational mode
Ice-reserving bucket ice-melt cooling when operation, have two kinds of methods of operation according to having or not of ice-reserving bucket 18 internal memory ice amounts.When depositing ice in the ice-reserving bucket 18; the fan of compressor 1, outdoor heat exchanger 3 is shut down; first magnetic valve 7, the 4th magnetic valve 13, the 3rd magnetic valve 14, second magnetic valve, 17 cold-storages are closed with electric expansion valve 16,9 outages of cooling electric expansion valve; four-way change-over valve 2 outages; the 5th magnetic valve 10, the 12 energising conductings of the 6th magnetic valve; the ab conducting of three-way solenoid valve 8, working medium pump 20, the operation of indoor heat exchanger 11 fans.Gaseous refrigerant behind indoor set 11 endothermic gasifications flows into 18 ice-melts of ice-reserving bucket through the 6th magnetic valve 12 and is condensed into liquid refrigerant, enter circulation reservoir 19 then, and the liquid refrigerants in the circulation reservoir 19 are delivered to indoor heat exchanger 11 endothermic gasifications by refrigerant line, three-way solenoid valve 8 (ab conducting), the 5th magnetic valve 10 by working medium pump 20, finish the ice-reserving bucket and release cold circulation, realize that working medium pump drives cold-producing medium circulation cooling.Do not deposit ice but water temperature when being lower than 30 ℃ when having in the ice-reserving bucket 18; system carries out operational mode and switches; the fan of the fan of compressor 1, outdoor heat exchanger 3, indoor heat exchanger 11 operation at this moment; working medium pump 20 is shut down; first magnetic valve 7, the 5th magnetic valve 10, the 6th magnetic valve 12, the 3rd magnetic valve 14, cold-storage with electric expansion valve 16, heat with electric expansion valve 22 outages and close; cooling electric expansion valve 9, the 13 energising conductings of the 4th magnetic valve; four-way change-over valve 2 outages, the ab conducting of three-way solenoid valve 8.The compressed machine 1 boil down to high temperature and high pressure gaseous refrigerant of the gaseous refrigerant of low-temp low-pressure, flow into outdoor heat exchanger 3 through four-way change-over valve 2 and be condensed into the cold anticyclone liquid state, flow into high pressure reservoir 5 by cooling check valve 4 then, high pressure liquid refrigerant drying filter 6 by 5 outflows of high pressure reservoir, second magnetic valve 17 flows into ice-reserving buckets 18 to carry out significantly coldly excessively entering circulation reservoir 19 and through refrigerant line, three-way solenoid valve 8 (ab conducting) back is that low-temp low-pressure gas-liquid two-phase cold-producing medium enters indoor heat exchanger 11 evaporation coolings and gasification is the low-temp low-pressure gaseous refrigerant by cooling electric expansion valve 9 throttlings, the low-temp low-pressure gaseous refrigerant is through the 4th magnetic valve 13, gas-liquid separator 15, four-way change-over valve 2 is got back to compressor 1, finishes the ice-reserving bucket and crosses cold cooling circulation.
(c) the independent cooling operational mode of unit
In the cooling period, when water temperature in the ice-reserving bucket 18 is higher than 30 ℃ or when need not ice-reserving bucket cooling, unit switches to independent cooling operational mode.The fan of the fan of compressor 1, outdoor heat exchanger 3, indoor heat exchanger 11 operation at this moment; working medium pump 20 is shut down; the 5th magnetic valve 10, the 6th magnetic valve 12, the 3rd magnetic valve 14, second magnetic valve 17, cold-storage with electric expansion valve 16, heat with electric expansion valve 22 outages and close; cooling electric expansion valve 9, the 13 energising conductings of the 4th magnetic valve, four-way change-over valve 2 outages.The compressed machine 1 boil down to high temperature and high pressure gaseous refrigerant of the gaseous refrigerant of low-temp low-pressure, flow into outdoor heat exchanger 3 through four-way change-over valve 2 and be condensed into the cold anticyclone liquid state, flow into high pressure reservoir 5 by cooling check valve 4 then, high pressure liquid refrigerant drying filter 6 by 5 outflows of high pressure reservoir, first magnetic valve, 7 backs are that low-temp low-pressure gas-liquid two-phase cold-producing medium enters indoor heat exchanger 11 evaporation coolings and gasification is the low-temp low-pressure gaseous refrigerant by cooling electric expansion valve 9 throttlings, the low-temp low-pressure gaseous refrigerant is through the 4th magnetic valve 13, gas-liquid separator 15, four-way change-over valve 2 is got back to compressor 1, finishes the circulation of unit independence cooling.
(d) unit heat supply running pattern
During the unit heat supply running; four-way change-over valve 2 energisings; the fan operation of the fan of compressor 1, outdoor heat exchanger 3, indoor heat exchanger 11; working medium pump is shut down; the 5th magnetic valve 10, the 13 energising conductings of the 4th magnetic valve, the bc conducting of three-way solenoid valve 8 are closed in first magnetic valve 7, the 6th magnetic valve 12, the 3rd magnetic valve 14,17 outages of second magnetic valve; cooling electric expansion valve 9, cold-storage are closed with electric expansion valve 16 outages, heat with electric expansion valve 22 passage conductings.The compressed machine 1 boil down to high temperature and high pressure gaseous refrigerant of low-temp low-pressure gaseous refrigerant, through four-way change-over valve 2, the 4th magnetic valve 13 flows into indoor heat exchanger 11 heat releases and is condensed into high pressure liquid refrigerant, then by the 5th magnetic valve 10, three-way solenoid valve 8 (bc conducting), heat with check valve 21 and flow into high pressure reservoir 5, high pressure liquid refrigerant drying filter 6 backs of being flowed out by high pressure reservoir 5 are that the heat gasification that low-temp low-pressure gas-liquid two-phase cold-producing medium flows in the outdoor heat exchanger 3 absorption chamber outer air is the low-temp low-pressure gaseous refrigerant by heating with electric expansion valve 22 throttlings, then through four-way change-over valve 2, gas-liquid separator 15 is back to compressor 1, finishes the circulation that heats of unit.
Embodiment 2: in conjunction with Fig. 2, in the refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit of the present invention, the outlet of gas-liquid separator 15 is linked to each other with the air entry of compressor 1, the exhaust outlet of compressor 1 links to each other with the air inlet of four-way change-over valve 2, the return-air mouth of four-way change-over valve 2 is connected with the air inlet of gas-liquid separator 15, and two other interface of four-way change-over valve 2 links to each other with the inlet of outdoor heat exchanger 3 and the gaseous refrigerant pipeline that is connected with the 4th magnetic valve 13, the 3rd magnetic valve 14 respectively; The outlet of outdoor heat exchanger 3 with by cooling check valve 4, heat with electric expansion valve 22, the inlet that heats check valve/expansion valve/electromagnetic valve component of forming with check valve 21, first magnetic valve 7, three-way solenoid valve 8 and be connected, the inlet of cooling electric expansion valve/electromagnetic valve component that other four outlets of check valve/expansion valve/electromagnetic valve component are formed with the entry and exit of high pressure reservoir/device for drying and filtering assembly of being made up of high pressure reservoir 5, device for drying and filtering 6, by cooling electric expansion valve 9, the 5th magnetic valve 10 respectively and the outlet of working medium pump 20 are connected; The outlet of the cooling electric expansion valve/electromagnetic valve component of two parallel connections links to each other with the inlet of each indoor heat exchanger 11 respectively, the outlet of two indoor heat exchangers 11 in parallel is divided into two-way, leading up to the 4th magnetic valve 13 and gaseous refrigerant pipeline links to each other with the interface of four-way change-over valve 2, another road by the 6th magnetic valve 12 and refrigerant line be connected in linking to each other with the outlet of electric expansion valve/electromagnetic valve component and the inlet of ice-reserving bucket 18 with the cold-storage that electric expansion valve 16, second magnetic valve 17 constitute of high pressure reservoir/device for drying and filtering assembly outlet by cold-storage; The outlet of ice-reserving bucket 18 is connected with the suction inlet of circulation reservoir 19, and the gaseous phase outlet of circulation reservoir 19 is by the 3rd magnetic valve 14 and an interface that is connected in four-way change-over valve 2 after the export pipeline of indoor heat exchanger 11 is in parallel; The suction inlet of working medium pump 20 is connected in the bottom of circulation reservoir 19, and the outlet of working medium pump 20 is connected in the inflow end a of three-way solenoid valve 8.Described ice-reserving bucket 18, circulation reservoir 19, working medium pump 20, the 3rd magnetic valve 14 place outdoor, and constitute outdoor unit 24 with compressor 1, outdoor heat exchanger 3, check valve/expansion valve/electromagnetic valve component, high pressure reservoir/device for drying and filtering assembly, cold-storage with electric expansion valve/electromagnetic valve component; Described indoor heat exchanger 11, cooling electric expansion valve/electromagnetic valve component, the 6th magnetic valve 12, the 4th magnetic valve 13 constitute indoor units 23.Indoor heat exchanger 11 is made of two air-cooled heat exchanger parallel connections, and outdoor heat exchanger 3 adopts water-cooled heat exchanger.
Identical with embodiment 1, this ice storage cold-hot pump air-conditioning system also can realize cold-storage, the independent cooling of unit, ice bucket ice-melt cooling, four kinds of operational modes of unit Winter heat supply according to the different open and-shut modes of four-way change-over valve 2, first magnetic valve 7, the 5th magnetic valve 10, the 6th magnetic valve 12, the 4th magnetic valve 13, the 3rd magnetic valve 14, second magnetic valve 17 and three-way solenoid valve 8, and each operational mode is with embodiment 1.
Claims (5)
1, a kind of refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit, comprise that is used to a compressor [1] that sucks gaseous refrigerant and compress output, the exhaust outlet of this compressor [1] connects a four-way change-over valve [2], between the air entry of the return-air mouth of this four-way change-over valve [2] and compressor [1], be connected gas-liquid separator [15], the exhaust outlet of this four-way change-over valve [2] connects an outdoor heat exchanger [3], and the outlet of this outdoor heat exchanger [3] connects one by cooling check valve [4], heat with electric expansion valve [22], heat with check valve [21], check valve/expansion valve/electromagnetic valve component that first magnetic valve [7] and three-way solenoid valve [8] are formed; The outlet of described cooling check valve [4] is connected with the inlet of high pressure reservoir/device for drying and filtering assembly of being made up of high pressure reservoir [5], device for drying and filtering [6] with the described outlet that heats with check valve [21]; It is characterized in that: the cold-storage that is made of with electric expansion valve [16] and second magnetic valve [17] cold-storage connects in the outlet of high pressure reservoir/device for drying and filtering assembly and the check valve/expansion valve/electromagnetic valve component first magnetic valve [7] and heats with the port between the electric expansion valve [22] this cold-storage inlet of the outlet connection ice-reserving bucket [18] of electric expansion valve/electromagnetic valve component with the inlet of electric expansion valve/electromagnetic valve component; The outlet of described ice-reserving bucket [18] connects circulation reservoir [19], the bottom of this circulation reservoir [19] connects the inlet of working medium pump [20], the outlet of this working medium pump [20] is connected with the inflow end a of three-way solenoid valve [8] in check valve/expansion valve/electromagnetic valve component by refrigerant line, and the gaseous phase outlet of described circulation reservoir [19] is connected with the air entry of four-way change-over valve [2] with one road refrigerant line and the 4th magnetic valve [13] back in parallel of indoor heat exchanger [11] outlet by refrigerant line and the 3rd magnetic valve [14]; The inlet of cooling electric expansion valve/electromagnetic valve component of being made up of cooling electric expansion valve [9], the 5th magnetic valve [10] connects the outflow end b of three-way solenoid valve [8] in check valve/expansion valve/electromagnetic valve component, the outlet of this cooling electric expansion valve/electromagnetic valve component connects the inlet of indoor heat exchanger [11], and inlet and the cold-storage of another road of this indoor heat exchanger [11] outlet by the 6th magnetic valve [12] and refrigerant line and ice-reserving bucket [18] is connected with the outlet of electric expansion valve/electromagnetic valve component.
2, refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit according to claim 1, it is characterized in that: described ice-reserving bucket [18], circulation reservoir [19], working medium pump [20], the 3rd magnetic valve [14] place indoor, and constitute indoor units [23] with indoor heat exchanger [11], cooling electric expansion valve/electromagnetic valve component, the 6th magnetic valve [12], the 4th magnetic valve [13]; Described compressor [1], outdoor heat exchanger [3], check valve/expansion valve/electromagnetic valve component, high pressure reservoir/device for drying and filtering assembly, cold-storage constitute outdoor unit [24] with electric expansion valve/electromagnetic valve component.
3, refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit according to claim 1, it is characterized in that: described ice-reserving bucket [18], circulation reservoir [19], working medium pump [20], the 3rd magnetic valve [14] place outdoor, and constitute outdoor unit [24] with compressor [1], outdoor heat exchanger [3], check valve/expansion valve/electromagnetic valve component, high pressure reservoir/device for drying and filtering assembly, cold-storage with electric expansion valve/electromagnetic valve component; Described indoor heat exchanger [11], cooling electric expansion valve/electromagnetic valve component, the 6th magnetic valve [12], the 4th magnetic valve [13] constitute indoor units [23].
4, according to claim 1,2 or 3 described refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning units, it is characterized in that: described indoor heat exchanger [11] is made of an air-cooled heat exchanger or water-cooled heat exchanger, perhaps is made of a plurality of air-cooled heat exchangers or water-cooled heat exchanger parallel connection.
5, according to claim 1,2 or 3 described refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning units, it is characterized in that: described outdoor heat exchanger [3] adopts air-cooled heat exchanger or water-cooled heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100982994A CN100501256C (en) | 2006-12-11 | 2006-12-11 | Refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100982994A CN100501256C (en) | 2006-12-11 | 2006-12-11 | Refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit |
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| CN101201198A CN101201198A (en) | 2008-06-18 |
| CN100501256C true CN100501256C (en) | 2009-06-17 |
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| CN101838568B (en) * | 2010-03-03 | 2013-11-06 | 辽宁哈深冷气体液化设备有限公司 | Natural gas liquefaction process by utilizing night electricity |
| CN103983044B (en) * | 2014-05-28 | 2016-04-20 | 广东志高暖通设备股份有限公司 | A kind of Air-Cooled Heat Pump Unit |
| CN104154596B (en) * | 2014-08-12 | 2017-04-12 | 浙江蔚庭新能源科技有限公司 | Energy-storage type heat pump air-conditioning system |
| CN107923655B (en) * | 2015-08-17 | 2021-01-22 | 三菱电机株式会社 | Heat utilization device |
| CN105627470B (en) * | 2015-12-30 | 2018-07-03 | 同济大学 | A kind of air-conditioner set based on supercooling reheating |
| CN106705298B (en) * | 2016-12-23 | 2022-07-01 | 南通华信中央空调有限公司 | Multi-connected fresh air conditioning unit with exhaust heat pump heat recovery function and heat exchange method |
| CN112654820A (en) * | 2018-09-05 | 2021-04-13 | 广东美的白色家电技术创新中心有限公司 | Computer readable storage medium, mobile air conditioner, and control method and control device thereof |
| CN109442639A (en) * | 2018-11-28 | 2019-03-08 | 宁波奥克斯电气股份有限公司 | Ice-water maker, ice water cold accumulation air-conditioner and its control method |
| CN111649499B (en) * | 2020-05-28 | 2021-07-13 | 南京天加环境科技有限公司 | Four-pipe cold and hot water unit of air-cooled heat pump |
| CN112303697B (en) * | 2020-10-28 | 2023-12-22 | 青岛海尔空调电子有限公司 | Heat pump system and control method thereof |
| CN112880245A (en) * | 2021-01-27 | 2021-06-01 | 苏州必信空调有限公司 | Air conditioning device with cold accumulation function |
| CN114593477B (en) * | 2022-03-09 | 2023-07-04 | 同济大学 | Heat accumulation synergistic air source heat pump system with multiple operation modes and control method thereof |
| WO2024021600A1 (en) * | 2022-07-26 | 2024-02-01 | 广东美的制冷设备有限公司 | Ice storage air conditioner, method, apparatus, and computer readable storage medium |
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