Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art and a kind of compact conformation is provided, a tractor serves several purposes, the step of having realized waste heat effectively efficiently utilizes, reduce cost, save the space, realize refrigeration in summer, winter heating, reparation technology and domestic hot-water and desalinize seawater, hot water hot and cold and fresh water tetrad feed system in the novel sea-water heat-pump of one.
Purpose of the present invention can reach by following measure: a kind of novel sea-water heat-pump is cold, heat, hot water and fresh water tetrad feed system, it is characterized in that it comprises heat pump, fresh water preparation system and hot water preparation system, wherein heat pump comprises compressor, the outlet of compressor connects heat exchanger by valve, heat exchanger connects reservoir by valve respectively, the first throttle valve, gas-liquid separator, compressor and gas-liquid separator are positioned at an end of heat exchanger, reservoir and first throttle valve are positioned at the other end of heat exchanger, the intake-outlet of heat exchanger connects water inlet and delivery port respectively, reservoir connects the first throttle valve respectively, second choke valve, gas-liquid separator connects the import of compressor; The fresh water preparation system comprises coil condenser, coil condenser comprises outside cylindrical shell and coil pipe group, the coil pipe of coil condenser respectively with the outlet of compressor, reservoir connects, the cylindrical shell top of coil condenser connects the exhaust passage, the air inlet place of exhaust passage is provided with water fender and blower fan, be provided with adjusting valve in the exhaust passage, adjusting valve is divided into second air channel and first air channel with the exhaust passage, connect the air intake preheating heat exchanger in second air channel successively, spray chamber, the desalination evaporimeter, desalination connects gas-liquid separator with an end of evaporimeter, the other end connects second choke valve, the both sides of spray chamber are provided with water fender, the bottom of spray chamber is provided with the seawater tank, the seawater tank connects seawer outlet, coil condenser is in the cylindrical shell tank, the cylindrical shell tank links to each other with the air intake preheating heat exchanger by water pump, desalination all is connected with second air channel with air outlet with the evaporimeter air inlet, desalination is provided with the fresh water tank with the bottom of evaporimeter, the fresh water tank connects the desalination water outlet, spray chamber is by first magnetic valve, water pump is connected with sea intake, and the air intake preheating heat exchanger is provided with seawer outlet; The hot water preparation system comprises that hot water is produced and uses heat exchanger, the air inlet that hot water is produced with heat exchanger all is connected with first air channel with air outlet, hot water is produced with the heat exchanger bottom and is established the hot water tank, the hot water tank connects electric heating device, hot water outlet, hot water is produced with heat exchanger and is provided with air outlet, sea intake is connected with the end that hot water is produced with heat exchanger by water pump, second magnetic valve, and the other end that hot water is produced with heat exchanger is connected with the cylindrical shell of coil condenser.
In order further to realize purpose of the present invention, described heat pump replaces with: the outlet of compressor heats condenser by the connection of the 6th refrigerant loop magnetic valve, heat condenser and connect reservoir respectively, first water side loop magnetic valve and the delivery port, reservoir connects the first throttle valve respectively, second choke valve, the first throttle valve connects refrigerating evaporator by the 5th refrigerant loop magnetic valve, the first water side loop magnetic valve and the second water side loop magnetic valve are connected in parallel, the water inlet and the first water side loop magnetic valve, the second water side loop magnetic valve connects respectively, refrigerating evaporator connects gas-liquid separator respectively, the second water side loop magnetic valve, the 5th refrigerant loop magnetic valve, the 3rd water side loop magnetic valve, the 3rd water side loop magnetic valve connects delivery port, gas-liquid separator connects the import of compressor, second choke valve is connected with evaporimeter with desalination, desalination is connected gas-liquid separator with after evaporimeter and the refrigerating evaporator parallel connection, and the outlet of compressor is connected with coil condenser.Coil condenser comprises several coil pipes, and its operation coil pipe number requires decision by system matches.
In order further to realize purpose of the present invention, described refrigerating evaporator and heat condenser and adopt plate type heat exchanger, shell-and-tube heat exchanger or heat exchange of heat pipe.
In order further to realize purpose of the present invention, the compressor of described heat pump is by the first refrigerant loop magnetic valve, the second refrigerant loop magnetic valve connects gas-liquid separator, pipeline between the first refrigerant loop magnetic valve and the second refrigerant loop magnetic valve connects the cold-producing medium interface of heat exchanger, another cold-producing medium interface of heat exchanger connects the 3rd refrigerant loop magnetic valve respectively, the 4th refrigerant loop magnetic valve, the 3rd refrigerant loop magnetic valve connects reservoir, reservoir connects the first throttle valve and second choke valve respectively, connect by water side loop magnetic valve group between the water inlet of heat exchanger and the delivery port, this water side loop magnetic valve group is by the 4th water side loop magnetic valve, the 5th water side loop magnetic valve, the 6th water side loop magnetic valve, the loop that the 7th water side loop magnetic valve is formed, the water interface that connects heat exchanger between the 4th water side loop magnetic valve and the 5th water side loop magnetic valve, another water interface that connects heat exchanger between the 6th water side loop magnetic valve and the 7th water side loop magnetic valve, the 6th water side loop magnetic valve is connected water inlet with the 5th water side loop magnetic valve, and the 4th water side loop magnetic valve is connected delivery port with the 7th water side loop magnetic valve.
In order further to realize purpose of the present invention, described heat exchanger adopts plate type heat exchanger, shell-and-tube heat exchanger or heat exchange of heat pipe.Compressor can be frequency-changeable compressor or compressor bank, regulates the compressor operating situation according to the actual load situation.
In order further to realize purpose of the present invention, described desalination evaporimeter is fin tube type or plate-fin heat exchanger, and fin is parallel with the air intake direction during layout, and is vertical with the fresh water tank.
In order further to realize purpose of the present invention, described air intake preheating heat exchanger is a fin-tube heat exchanger, and the fin direction is parallel with airflow direction.
In order further to realize purpose of the present invention, it is fin tube type or plate-fin heat exchanger that described hot water is produced with heat exchanger, and the fin direction is parallel with airflow direction when adopting fin tube type, and is vertical with the hot water tank.
The present invention can produce following good effect compared with the prior art: the present invention is characterized in two aspects: being to realize refrigeration in summer, winter heating, annual domestic hot-water and water supply on the one hand, is the UTILIZATION OF VESIDUAL HEAT IN of coil condenser on the other hand.Its waste heat comprises water vapour waste heat and seawater waste heat two parts.In coil condenser, the cold-producing medium heat release is to seawater, and seawater heat absorption back temperature raises (seawater waste heat) and liquid level pressure reduction generation water vapour (water vapour waste heat) under the blower fan swabbing action.Water vapour is divided into two-way along the air channel, entering hot water respectively produces with heat exchanger and air intake preheating heat exchanger, in hot water is produced with heat exchanger, condense and obtain domestic hot-water (if hot water temperature comparatively low can open electric heating device) with seawater to make heat exchange, Absorption by Sea Water water vapour waste heat is realized preheating simultaneously, make seawater enter condenser, thereby be easier to the evaporation of institute's water content with higher temperature.Temperature further raise after seawater absorbed heat in condenser, enter in the air intake preheating heat exchanger after contained humidity partly evaporates and the heat exchange of evaporimeter air intake, improve EAT, make air intake after entering spray chamber, have stronger moisture content absorbability, improve the water capacity of fresh water evaporator air intake, realized the condenser afterheat utilization effectively, improve the evaporating temperature that the evaporimeter EAT can improve heat pump, and heat pump its operational efficiency under higher evaporating temperature has been higher; Improve the air intake water capacity and not only can obtain more desalination water, and help in the wet heat transfer process of the heat of air, reducing the temperature difference of air and cold-producing medium.
The present invention can be used for medium-sized and above hot and cold, domestic hot-water in coastal area and water supply, by adopting the sea-water heat-pump principle, device is compact, a tractor serves several purposes, realized the efficient utilization of waste heat effectively, can be widely used in heating, air-conditioning, hot water and the water supply of coastal area enterprise, community, have great importance for the changes in temperature that satisfy people and hot water demand, alleviation water scarcity, it is applied has great economy and social value.
The specific embodiment: the present invention will be described below in conjunction with accompanying drawing:
Embodiment 1: a kind of novel sea-water heat-pump is hot and cold, hot water and fresh water tetrad feed system (referring to Fig. 1), and it comprises heat pump, fresh water preparation system and hot water preparation system.Wherein heat pump comprises compressor 1, heat condenser 3, first throttle valve 4, refrigerating evaporator 5, gas-liquid separator 7, reservoir 8, the 5th refrigerant loop magnetic valve 25, the 6th refrigerant loop magnetic valve 26 and the first water side loop magnetic valve 21, the second water side loop magnetic valve 22, the 3rd water side loop magnetic valve 23, refrigerating evaporator 5 and heat condenser 3 and can adopt plate type heat exchanger, shell-and-tube heat exchanger, forms such as heat exchange of heat pipe, compressor 1 heats condenser 3 by 26 connections of the 6th refrigerant loop magnetic valve, heat condenser 3 and connect reservoir 8 respectively, first water side loop magnetic valve 21 and the delivery port 37, reservoir 8 connects first throttle valve 4, second choke valve 50, first throttle valve 4 connects refrigerating evaporator 5 by the 5th refrigerant loop magnetic valve 25, the first water side loop magnetic valve 21 connects the second water side loop magnetic valve 22, water inlet 36 all with the first water side loop magnetic valve 21, the second water side loop magnetic valve 22 connects, refrigerating evaporator 5 connects gas-liquid separator 7 respectively, the second water side loop magnetic valve 22, the 3rd water side loop magnetic valve 23, the 5th refrigerant side magnetic valve 25, the 3rd water side loop magnetic valve 23 connects delivery port 37, and gas-liquid separator 7 connects compressor 1.
The fresh water preparation system comprises coil condenser 2, second air channel 18, air intake preheating heat exchanger 9, spray chamber 10, water fender 16, the desalination evaporimeter 6 and first magnetic valve 19, coil condenser 2 comprises outside cylindrical shell and coil pipe group, the coil pipe of coil condenser 2 respectively with compressor 1, reservoir 8 connects, outside cylindrical shell can be circular, square, the cylindrical shell top of coil condenser 2 connects the exhaust passage, the exhaust passage is provided with water fender 17 and blower fan 14, the blower fan suction can reduce the coil condenser cylinder internal pressure, promote the evaporation of moisture content in the seawater, there is adjusting valve 24 to regulate the air quantity that enters first air channel 15, two-way air channel and second air channel 18 in the exhaust passage, connect air intake preheating heat exchanger 9 successively in second air channel 18, spray chamber 10, desalination evaporimeter 6, the both sides of spray chamber 10 are provided with water fender 16, the bottom of spray chamber 10 is provided with seawater tank 46, seawater tank 46 connects seawer outlet 47, second air channel 18 connects air outlet 48, coil condenser 2 places in the cylindrical shell tank 43, tank 43 links to each other with air intake preheating heat exchanger 9 by water pump 13, desalination is type heat exchangers such as fin tube type or plate-fin with evaporimeter 6, air inlet all is connected with second air channel 18 with air outlet, desalination connects second choke valve 50 with evaporimeter 6, gas-liquid separator 7, desalination is provided with fresh water tank 44 with the bottom of evaporimeter 6, fresh water tank 44 connects desalination water outlet 38, be equipped with to contain and separate out fresh water usefulness, fin is parallel with the air intake direction during layout, and is vertical with fresh water tank 44.Spray chamber 10 is connected with sea intake 39 by first magnetic valve 19, water pump 12, and air intake preheating heat exchanger 9 is provided with seawer outlet 42, and air intake preheating heat exchanger 9 is a fin-tube heat exchanger, and the fin direction is parallel with airflow direction.
The hot water preparation system comprises that hot water produces with heat exchanger 11, first air channel 15 and second magnetic valve 20, hot water is produced with heat exchanger 11 and is connected coil condenser 2 and cylindrical shell thereof respectively, hot water is produced with heat exchanger 11 bottoms and is established hot water tank 45, hot water tank 45 connects electric heating device 49, hot water outlet 40, and hot water is produced with heat exchanger 11 and is provided with air outlet 41.Sea intake 39 is produced with heat exchanger 11 with hot water by water pump 12, second magnetic valve 20 and is connected, hot water is produced with heat exchanger 11 and is gas-liquid heat exchangers such as fin tube type or plate-fin, the fin direction is parallel with airflow direction when adopting fin tube type, and is vertical with hot water tank 45.Electric heating device 49 is crossed when hanging down in hot water effluent's temperature and is opened.
Introduce the operation of this device below season according to the difference operation of device.
In the whole year operation process, first magnetic valve 19 of hot water and fresh water preparation system, second magnetic valve are opened, being divided into two-way after seawater is at first sucked by water pump 12 enters hot water respectively and produces with heat exchanger 11 and spray chamber 10, wherein entering hot water produces the road water vapour that seawater and coil condenser 2 with heat exchanger 11 come out and carries out heat exchange, be preheated and enter in the coil condenser 2 and the heat exchange of cold-producing medium coil pipe group after the seawater heat absorption, condense after the water vapour heat release produce hot water through electric heating device 49 to hot water outlet 40, all the other are discharged into air outlet 41.In the fresh water preparation system, enter air intake preheating heat exchanger 9 by another road water vapour that comes out in the coil condenser 2 through second air channel 18, the seawater waste heat heating that utilizes coil condenser 2 to come out contains the air intake of water vapour, improve its temperature, can absorb more moisture content after making it enter spray chamber 10, pass through desalination water evaporimeter 6 and low-temperature refrigerant heat exchange again, institute's water content is separated out acquisition fresh water and is fallen into tank 44 and export 38 utilizations through desalination water, and surplus air is discharged by air outlet 48.
Freeze season summer: in the heat pump, the 6th refrigerant loop magnetic valve 26 cuts out, the 5th refrigerant loop magnetic valve 25 is opened, the first water side loop magnetic valve 21 cuts out, the second water side loop magnetic valve 22, the 3rd water side loop magnetic valve 23 are opened, and the coil pipe in the coil condenser 2 all puts into operation.The high pressure, high temperature refrigerant gas that compressor 1 comes out enters coil condenser 2, enter reservoir 8 after in coil condenser 2, condensing into highly pressurised liquid with seawater to make heat exchange, pass through 4 throttlings of first throttle valve again, become the gas-liquid two-phase cold-producing medium of low-temp low-pressure, enter refrigerating evaporator 5, another road highly pressurised liquid enters desalination after through 50 throttlings of second choke valve with evaporimeter 6, cold-producing medium becomes low area overheat gas after absorbing heat in two evaporimeters, enter compressor 1 compression back through gas-liquid separator 7 after converging and repeat said process.Heat no flow of refrigerant in the condenser 3 in the running, in coil condenser 2, produce water vapour behind cold-producing medium and the seawater to make heat exchange, through water fender 17, be divided into two-way in blower fan 14 effect air channels, lower edge by adjusting valve 24 and enter hot water through first air channel 15 and second air channel 18 respectively and produce, and air intake preheating heat exchanger 9 heating fumigators air intakes are sent to by water pump 13 in seawater heat absorption back with heat exchanger 11 and air intake preheating heat exchanger 9.The refrigeration water enters refrigerating evaporator 5 and cold-producing medium heat exchange through water inlet 36, magnetic valve 22, and coolant-temperature gage is sent to the user through magnetic valve 23, delivery port 37 after reducing, and forms reverse heat-exchange at refrigerating evaporator inner refrigerant and water, can effectively increase refrigerating capacity.
Winter heating season: in the heat pump, the 6th cold-producing medium magnetic valve 26 is opened, and the 5th cold-producing medium magnetic valve 25 cuts out, and the first water side magnetic valve 21 is opened, the second water side magnetic valve 22, the 3rd water side magnetic valve 23 are closed, the part coil pipe group operation in the coil condenser 2.The high pressure, high temperature refrigerant gas that compressor 1 comes out is divided into two-way and enters coil condenser 2 respectively and heat condenser 3, the cold-producing medium heat release condenses into and enters reservoir 8 after highly pressurised liquid converges in two condensers, again through 50 throttlings of second choke valve, become and enter desalination behind the gas-liquid two-phase cold-producing medium of low-temp low-pressure with evaporimeter 6, cold-producing medium becomes low area overheat gas after absorbing heat in evaporimeter, repeat said process after process gas-liquid separator 7 enters compressor compresses.No flow of refrigerant in the refrigerating evaporator 5 in the running, in coil condenser 2, produce water vapour behind cold-producing medium and the seawater to make heat exchange, drive along the air channel by blower fan 14 through water fender 17 back and to be divided into two-way through adjusting valve 24 and to enter hot water through first air channel 15 and second air channel 18 respectively and produce, and air intake preheating heat exchanger 9 heating fumigators air intakes are sent to by water pump 13 in seawater heat absorption back with heat exchanger 11 and air intake preheating heat exchanger 9.Heat water and enter through water inlet 36, the first water side magnetic valve 21 and heat condenser 3 and cold-producing medium heat exchange, coolant-temperature gage raises after delivery port 37 is sent to the user, heating condenser 3 inner refrigerants and water formation reverse heat-exchange, can effectively increase heating capacity.
Embodiment 2: owing to heat condenser and application simultaneously of refrigerating evaporator, in order to reduce equipment investment, the present invention adopts a heat exchanger in refrigeration with heat season respectively as refrigerating evaporator with heat condenser and use, a kind of novel sea-water heat-pump is hot and cold, hot water and fresh water tetrad feed system (referring to Fig. 2), comprises heat pump, fresh water preparation system and hot water preparation system.
Wherein heat pump comprises compressor 1, heat exchanger (heating condenser/refrigerating evaporator) 35, first throttle valve 4, gas-liquid separator 7, reservoir 8, the first refrigerant loop magnetic valve 27, the second refrigerant loop magnetic valve 28, the 3rd refrigerant loop magnetic valve 29, the 4th refrigerant loop magnetic valve 30 and the 4th water side loop magnetic valve 31, the 5th water side loop magnetic valve 32, the 6th water side loop magnetic valve 33, the 7th water side loop magnetic valve 34, heat exchanger 35 can adopt plate type heat exchanger, shell-and-tube heat exchanger, forms such as heat exchange of heat pipe, compressor 1 is by the first refrigerant loop magnetic valve 27, the second refrigerant loop magnetic valve 28 connects gas-liquid separator 7, gas-liquid separator 7 connects compressor 1, pipeline between the first refrigerant loop magnetic valve 27 and the second refrigerant loop magnetic valve 28 connects a cold-producing medium interface of heat exchanger 35, another cold-producing medium interface of heat exchanger 35 connects the 3rd refrigerant loop magnetic valve 29 respectively, the 4th refrigerant loop magnetic valve 30, the 3rd refrigerant loop magnetic valve 29 connects reservoir 8, and reservoir 8 connects first throttle valve 4, second choke valve 50.Connect by water side loop magnetic valve group between the water inlet of heat exchanger 35 and the delivery port, this water side loop magnetic valve group is by the 4th water side loop magnetic valve 31, the 5th water side loop magnetic valve 32, the 6th water side loop magnetic valve 33, the loop that the 7th water side loop magnetic valve 34 is formed, a water interface that connects heat exchanger 35 between the 4th water side loop magnetic valve 31 and the 5th water side loop magnetic valve 32, another water interface that connects heat exchanger 35 between the 6th water side loop magnetic valve 33 and the 7th water side loop magnetic valve 34, the 6th water side loop magnetic valve 33 all is connected with water inlet 36 with the 5th water side loop magnetic valve 32, and the 4th water side loop magnetic valve 31 all is connected with delivery port 37 with the 7th water side loop magnetic valve 34.
The structure of fresh water preparation system is substantially with embodiment 1, and its difference is that the pipeline between the 3rd refrigerant loop magnetic valve 29 and the reservoir 8 is connected with the coil pipe of coil condenser 2, and first throttle valve 4 is connected with the 4th refrigerant loop magnetic valve 30.
The structure of hot water preparation system is substantially with embodiment 1.
Introduce the operation of this device below season according to the difference operation of device.
In the whole year operation process, first magnetic valve 19 of hot water preparation system, second magnetic valve 20 are opened, being divided into two-way after seawater is at first sucked by water pump 12 enters hot water respectively and produces with heat exchanger 11 and spray chamber 10, wherein entering hot water produces the road water vapour that seawater and coil condenser 2 with heat exchanger 11 come out and carries out heat exchange, enter coil condenser 2 behind the seawater preheating, the generation hot water that condenses after the water vapour heat release, all the other are discharged into air outlet 41.In the fresh water preparation system, the part water vapour that comes out in the coil condenser 2 enters air intake preheating heat exchanger 9 through second air channel 18, the seawater waste heat heating that utilizes coil condenser 2 to come out contains the air intake of water vapour, improve its temperature, can absorb more moisture content after making it enter spray chamber 10, through desalination evaporimeter 6 and low-temperature refrigerant heat exchange, separate out moisture content and fall into tank 44 and utilize fresh water through desalination water outlet 38 again, surplus air is discharged by air outlet 48.
Freeze season summer: in the heat pump, the first refrigerant loop magnetic valve 27, the 3rd refrigerant loop magnetic valve 29 are closed, the second refrigerant loop magnetic valve 28, the 4th refrigerant loop magnetic valve 30 are opened, the 4th water side loop magnetic valve 31, the 6th water side loop magnetic valve 33 are closed, the 5th water side loop magnetic valve 32, the 7th water side loop magnetic valve 34 are opened, and the coil pipe in the coil condenser 2 all puts into operation.The high pressure, high temperature refrigerant gas that compressor 1 comes out enters coil condenser 2, enter reservoir 8 after in condenser, condensing into highly pressurised liquid with seawater to make heat exchange, be divided into two-way, one the tunnel through 4 throttlings of first throttle valve, become the gas-liquid two-phase cold-producing medium of low-temp low-pressure, enter heat exchanger 35 through the 4th refrigerant loop magnetic valve 30,50 throttlings enter desalination evaporimeter 6 through second choke valve on another road, cold-producing medium becomes low area overheat gas after absorbing heat in two evaporimeters, a road enter compressor 1 compression back repetition said process through the second refrigerant loop magnetic valve 28 with converging through gas-liquid separator 7 with another road of evaporimeter 6 from desalination from what heat exchanger 35 came out.In the running, in coil condenser 2, produce water vapour behind cold-producing medium and the seawater to make heat exchange, drive by blower fan 14 through water fender 17 back and to be divided into two-way and to enter hot water along first air channel 15 and second air channel 18 respectively and produce, and seawater is sent to air intake preheating heat exchanger 9 heating fumigators air intakes in tank 43 heat absorption backs by water pump 13 with heat exchanger 11 and air intake preheating heat exchanger 9.The refrigeration water enters heat exchanger 35 and cold-producing medium heat exchange through water inlet 36, the 5th water side loop magnetic valve 32, coolant-temperature gage is sent to the user through the 7th water side loop magnetic valve 34, delivery port 37 after reducing, make at refrigerating evaporator inner refrigerant and water formation reverse heat-exchange by control water side valve door switch, increase refrigerating capacity effectively.
Winter heating season: in the heat pump, the first refrigerant loop magnetic valve 27, the 3rd refrigerant loop magnetic valve 29 are opened, the second refrigerant loop magnetic valve 28, the 4th refrigerant loop magnetic valve 30 are closed, the 6th water side loop magnetic valve 33, the 4th water side loop magnetic valve 31 are opened, the 5th water side loop magnetic valve 32, the 7th water side loop magnetic valve 34 are closed, the part coil pipe group operation in the coil condenser 2.The high pressure, high temperature refrigerant gas that compressor 1 comes out is divided into two-way, one the tunnel enters coil condenser 2, another road first refrigerant loop magnetic valve 27 enters heat exchanger 35, cold-producing medium heat release in two condensers condenses into highly pressurised liquid, after mixing, one road another road of coming out through the 3rd refrigerant loop magnetic valve 29 and coil condenser 2 after coming out from heat exchanger 35 enters reservoir 8, again through 50 throttlings of second choke valve, become and enter desalination behind the gas-liquid two-phase cold-producing medium of low-temp low-pressure with evaporimeter 6, cold-producing medium becomes low area overheat gas after absorbing heat in evaporimeter 6, enter compressor 1 compression back through gas-liquid separator 7 and repeat said process.In the running, in coil condenser 2, produce water vapour behind cold-producing medium and the seawater to make heat exchange, drive by blower fan 14 through water fender 17 back and to be divided into two-way and to enter hot water along first air channel 15 and second air channel 18 respectively and produce, and air intake preheating heat exchanger 9 heating fumigators air intakes are sent to by water pump 13 in seawater heat absorption back with heat exchanger 11 and air intake preheating heat exchanger 9.Heat water and enter heat exchanger 35 and cold-producing medium heat exchange through water inlet 36, the 6th water side loop magnetic valve 33, coolant-temperature gage is sent to the user through the 4th water side loop magnetic valve 31, delivery port 37 after raising, make heating temperature changer inner refrigerant and water formation reverse heat-exchange by control water side valve door switch, increase heating capacity effectively.