CN103557633A - Air-source low-temperature tri-generation heat pump hot water unit and implementation method thereof - Google Patents
Air-source low-temperature tri-generation heat pump hot water unit and implementation method thereof Download PDFInfo
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Abstract
The invention discloses an air-source low-temperature tri-generation heat pump hot water unit and an implementation method thereof, and solves the problems that functions of a heat pump unit are single and demands are difficult to meet. The air-source low-temperature tri-generation heat pump hot water unit comprises a compressor, an economizer, a separator, a three-way valve, a hot water processing device, a four-way valve, an evaporator, a second condenser, a circulating pump, an annular one-way valve group, a liquid storage tank and a fan, wherein a liquid spray port is formed in the compressor; the economizer is connected with the liquid spray port of the compressor; an output end of the separator is connected with an input end of the compressor; the three-way valve is connected with an output end of the compressor; the hot water processing device is connected with the three-way valve; the four-way valve is connected on a pipeline between the three-way valve and the hot water processing device; the evaporator and the second condenser are connected with the four-way valve respectively; the circulating pump and the annular one-way valve group are connected with the second condenser respectively; the liquid storage tank is connected with the annular one-way valve group and the economizer respectively; the fan corresponds to the evaporator; the separator is connected with the four-way valve; the evaporator and the economizer are connected with the annular one-way valve group respectively; and an electromagnetic valve is further arranged between the liquid storage tank and the economizer. The air-source low-temperature tri-generation heat pump hot water unit is reasonable in structure, multifunctional, convenient to use and suitable for promotion.
Description
Technical field
The present invention relates to a kind of source pump, specifically, relate to a kind of air source low-temperature three combined supply heat pump Hot water units and its implementation.
Background technology
Air-conditioning heating, refrigeration and living-hygienic hot water are requisite demands in people's productive life, under low temperature environment, people are to adopt coal burning water heater, gas and hot water to the most direct mode of demand of living-hygienic hot water, electric heater, solar water heater satisfies the demands, northerly heat supply in winter adopts domestic air conditioning substantially can not play the effect heating, and the mode of heating mainly adopts municipal central heating or the heat supply of Domestic wall stove to solve problem.In low temp area, adopt air source low-temperature heat pump Hot water units, domestic hot-water can only be provided or heating is provided.When freezing summer, the overwhelming majority realizes by air conditioner refrigerating.Therefore, existing source pump function is very single, the high cost that has also caused user to drop into.
In addition, under low temperature environment, domestic hot-water and heating are by coal burning water heater, and gas heater, electric heater, solar water heater and municipal coal-burning boiler obtain all following weak point:
1, by coal combustion, combustion gas, obtain hot water or heating consumes a large amount of primary energy, effectively utilizing of the energy is low, and heat energy is wasted greatly.Produce CO simultaneously
2isothermal chamber gas, is the arch-criminal of greenhouse effects, produces nitride and sulfide and causes the disasters such as acid rain, and serious environment pollution, does not meet national sustainable development.
2, by electric heater, come processing hot water or heating, because direct electricity consumption is heated, the calorific value that every degree electricity produces is too small, thereby adopts electric energy to obtain domestic hot-water or heating at low temperature environment, and energy consumption is very large, and operating cost is high.
3, the firing equipment such as traditional coal-burning boiler, gas fired-boiler, electric heater, has strict instructions for use, and boiler plant all needs annual test every year.In addition the service life of equipment relatively short, generally use 3-6 just to need to change once, thereby also caused the overlapping investment of equipment.
Summary of the invention
The object of the present invention is to provide a kind of air source low-temperature three combined supply heat pump Hot water units and its implementation, mainly solve the problem that existing source pump exists function singleness, is difficult to satisfy the demands.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of air source low-temperature three combined supply heat pump Hot water units, comprise the compressor that is provided with mouth spray, the economizer being connected with this compressor liquid-spraying mouth, the separator that output is connected with this compressor input, the triple valve being connected with this compressor output end, the hot water processing unit (plant) being connected with this triple valve by pipeline, be connected to the cross valve on the pipeline between triple valve and hot water processing unit (plant), the evaporimeter being connected with this cross valve respectively and the second condenser, the circulating pump being connected with this second condenser respectively and annular check valve group, the fluid reservoir being connected with economizer with annular check valve group respectively, and the position blower fan corresponding with evaporimeter, described separator is connected with cross valve, and described evaporimeter is connected with annular check valve group respectively with economizer, between described fluid reservoir and economizer, be also provided with magnetic valve.
Further, between described fluid reservoir and economizer, be also provided with filter; Described fluid reservoir is also connected with compressor liquid-spraying mouth by heating pipeline, and this heats and in pipeline, is also provided with electric expansion valve; The described pipeline that heats is between filter and economizer.
Specifically, described hot water processing unit (plant) comprises attemperater, heat-exchanger pump and the first condenser connecting successively; Described the first condenser is connected with triple valve, and this first condenser is returned and is connected in attemperater; Described cross valve is connected on the pipeline between the first condenser and triple valve.
Specifically, described annular check valve group comprises the first check valve, the second check valve, the 4th check valve and the 3rd check valve connecting successively by pipeline, and described the first check valve is also connected with the 3rd check valve; Described the second condenser is connected with the pipeline being arranged between the first check valve and the 4th check valve, described economizer is connected with the pipeline being arranged between the first check valve and the 3rd check valve, and described evaporimeter is connected with the pipeline being arranged between the 3rd check valve and the 4th check valve.
Again further, between described economizer and annular check valve group, be also provided with the first heating power expansion valve, and be also provided with the second heating power expansion valve between this economizer and magnetic valve.
On above-mentioned hardware system basis, the invention provides the implementation method of these air source low-temperature three combined supply heat pump Hot water units, it has following five kinds of schemes, as described below respectively:
Scheme one
(1) start respectively blower fan, circulating pump and compressor, and open triple valve and cross valve and make compressor be communicated with evaporimeter, close electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and successively by entering into evaporimeter after triple valve and cross valve, carry out heat exchange with the outdoor high temperature air of being brought into by blower fan in evaporimeter, form gas-liquid mixed state cold-producing medium;
(3) gas-liquid mixed state cold-producing medium flows out from evaporimeter, and through the 4th check valve, enters into fluid reservoir and carry out gas-liquid separation;
(4) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(5) gaseous refrigerant after filtering enters into the first heating power expansion valve by economizer and carries out throttling, form low-temp low-pressure liquid refrigerant, and enter into the second condenser through the first check valve, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct reduces, and environment is freezed, this low-temp low-pressure liquid refrigerant forms low-temp low-pressure gas-liquid mixed state cold-producing medium simultaneously;
(6) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(7) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(8) circulation step (1)～(7) successively.
Scheme two
(1) start respectively blower fan, circulating pump and compressor, and open triple valve and cross valve makes compressor be communicated with the second condenser, open electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and successively by entering into the second condenser after triple valve and cross valve, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct raises, and environment is heated, this high temperature and high pressure gaseous refrigerant forms HTHP gas-liquid mixed state cold-producing medium simultaneously;
(3) HTHP gas-liquid mixed state cold-producing medium flows out from the second condenser, and through the second check valve, enters into fluid reservoir and carry out gas-liquid separation;
(4) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(5) flow in the high temperature and high pressure gaseous refrigerant Fen San road after filtering, and wherein, first via high temperature and high pressure gaseous refrigerant forms low-temp low-pressure gaseous refrigerant after by electric expansion valve throttling and gets back in compressor; The second road high temperature and high pressure gaseous refrigerant enters into the second heating power expansion valve and carries out throttling, forms low-temp low-pressure liquid refrigerant, and enters into economizer; Third Road high temperature and high pressure gaseous refrigerant enters into economizer, and the low-temp low-pressure liquid refrigerant of coming in the second tunnel carries out heat exchange;
The low-temp low-pressure liquid refrigerant of coming in (6) second tunnels forms low-temp low-pressure gaseous refrigerant and gets back in compressor, the high temperature and high pressure gaseous refrigerant that Third Road is come in simultaneously forms normal temperature high voltage gaseous refrigerant, and enter into the first heating power expansion valve and carry out throttling, form low-temp low-pressure liquid refrigerant;
(7) low-temp low-pressure liquid refrigerant enters into evaporimeter through the 3rd check valve, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(8) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(9) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(10) circulation step (1)～(9) successively.
Scheme three
(1) start respectively blower fan, heat-exchanger pump and compressor, and open triple valve and cross valve is communicated with respectively the first condenser with compressor and the second condenser, open electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and enter into the first condenser by triple valve, heat-exchanger pump is pumped into the normal-temperature water in attemperater in the first condenser simultaneously, carry out heat exchange with high temperature and high pressure gaseous refrigerant, form hot water, high temperature and high pressure gaseous refrigerant forms gas-liquid mixed state cold-producing medium;
(3) hot water is got back in attemperater through the first condenser, and gas-liquid mixed state cold-producing medium enters into fluid reservoir and carries out gas-liquid separation through cross valve, the second condenser, the second check valve successively simultaneously;
(4) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(5) flow in the high temperature and high pressure gaseous refrigerant Fen San road after filtering, and wherein, first via high temperature and high pressure gaseous refrigerant forms low-temp low-pressure gaseous refrigerant after by electric expansion valve throttling and gets back in compressor; The second road high temperature and high pressure gaseous refrigerant enters into the second heating power expansion valve and carries out throttling, forms low-temp low-pressure liquid refrigerant, and enters into economizer; Third Road high temperature and high pressure gaseous refrigerant enters into economizer, and the low-temp low-pressure liquid refrigerant of coming in the second tunnel carries out heat exchange;
The low-temp low-pressure liquid refrigerant of coming in (6) second tunnels forms low-temp low-pressure gaseous refrigerant and gets back in compressor, the high temperature and high pressure gaseous refrigerant that Third Road is come in simultaneously forms normal temperature high voltage gaseous refrigerant, and enter into the first heating power expansion valve and carry out throttling, form low-temp low-pressure liquid refrigerant;
(7) low-temp low-pressure liquid refrigerant enters into evaporimeter through the 3rd check valve, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(8) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(9) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(10) circulation step (1)～(9) successively.
Scheme four
(1) start respectively circulating pump, heat-exchanger pump and compressor, and open triple valve and cross valve makes compressor be communicated with evaporimeter, close electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and enter into the first condenser by triple valve, heat-exchanger pump is pumped into the normal-temperature water in attemperater in the first condenser simultaneously, carry out heat exchange with high temperature and high pressure gaseous refrigerant, form hot water, high temperature and high pressure gaseous refrigerant forms gas-liquid mixed state cold-producing medium;
(3) hot water is got back in attemperater through the first condenser, start blower fan, gas-liquid mixed state cold-producing medium enters into evaporimeter through triple valve, cross valve successively simultaneously, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(4) gas-liquid mixed state cold-producing medium flows out from evaporimeter, and through the 4th check valve, enters into fluid reservoir and carry out gas-liquid separation;
(5) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(6) gaseous refrigerant after filtering enters into the first heating power expansion valve by economizer and carries out throttling, form low-temp low-pressure liquid refrigerant, and enter into the second condenser through the first check valve, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct reduces, and environment is freezed, this low-temp low-pressure liquid refrigerant forms low-temp low-pressure gas-liquid mixed state cold-producing medium simultaneously;
(7) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(8) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(9) circulation step (1)～(8) successively.
Scheme five
(1) start respectively blower fan, circulating pump, heat-exchanger pump and compressor, and open triple valve and cross valve is communicated with respectively the first condenser with compressor and the second condenser, open electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and enter into the first condenser by triple valve, heat-exchanger pump is pumped into the normal-temperature water in attemperater in the first condenser simultaneously, carry out heat exchange with high temperature and high pressure gaseous refrigerant, form hot water, high temperature and high pressure gaseous refrigerant forms gas-liquid mixed state cold-producing medium;
(3) hot water is got back in attemperater through the first condenser, gas-liquid mixed state cold-producing medium enters into the second condenser through cross valve simultaneously, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct raises, and environment is heated, this high temperature and high pressure gaseous refrigerant forms HTHP gas-liquid mixed state cold-producing medium simultaneously;
(4) HTHP gas-liquid mixed state cold-producing medium flows out from the second condenser, and through the second check valve, enters into fluid reservoir and carry out gas-liquid separation;
(5) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(6) flow in the high temperature and high pressure gaseous refrigerant Fen San road after filtering, and wherein, first via high temperature and high pressure gaseous refrigerant forms low-temp low-pressure gaseous refrigerant after by electric expansion valve throttling and gets back in compressor; The second road high temperature and high pressure gaseous refrigerant enters into the second heating power expansion valve and carries out throttling, forms low-temp low-pressure liquid refrigerant, and enters into economizer; Third Road high temperature and high pressure gaseous refrigerant enters into economizer, and the low-temp low-pressure liquid refrigerant of coming in the second tunnel carries out heat exchange;
The low-temp low-pressure liquid refrigerant of coming in (7) second tunnels forms low-temp low-pressure gaseous refrigerant and gets back in compressor, the high temperature and high pressure gaseous refrigerant that Third Road is come in simultaneously forms normal temperature high voltage gaseous refrigerant, and enter into the first heating power expansion valve and carry out throttling, form low-temp low-pressure liquid refrigerant;
(8) low-temp low-pressure liquid refrigerant enters into evaporimeter through the 3rd check valve, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(9) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(10) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(11) circulation step (1)～(10) successively.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention is rational in infrastructure, clear logic, clear, and simple operation, and it can significantly reduce the input of cost.
(2) the present invention is provided with five kinds of mode of operations, according to user's user demand, and can flexible modulation, separate between various patterns, irrelevant disturbing, thereby can the traditional air-conditioning of complete replacement, the equipment such as water heater, wall-hung boiler, the investment of minimizing equipment, and greatly promoted user's Experience Degree.
(3) the present invention carries out low-temperature low-pressure refrigerant to get back to compressor after heat exchange at economizer, can control the temperature of compressor secondary exhaust, avoids excessive discharge temperature, and by the exhaust of constant compression machine, improves the heat exchanger effectiveness of condenser.
(4) the present invention, by the reducing temperature twice of economizer and the first heating power expansion valve, has reduced the temperature of cold-producing medium, realizes cold-producing medium and enters after outdoor evaporimeter the high efficiency with air heat-exchange.
(5) the present invention, owing to being also provided with and heating pipeline between filter output and compressor, allows a part of high-temperature refrigeration directly get back to the delivery temperature that compressor improves second-compressed, thereby increases secondary heat exchange efficiency.
(6) low temperature three alliance units of the present invention non-exhaust emission in running, has the feature of environmental protection, and can also obtain hot water when using air conditioner refrigerating or heating.
(7) the present invention is designed and draws after a large amount of calculating and actual experiment and measuring and calculating by veteran engineer, it has carried out combination by theory and practice well, and obtained good beneficial effect, service life of the present invention can be up to more than 15 years, therefore, it has outstanding substantive distinguishing features and significant progressive compared to existing technology.
(8) cost performance of the present invention is high, function is various, integrated level is high, easy to use, therefore, it has very high practical value and promotional value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, the parts name that Reference numeral is corresponding is called:
1-compressor, 2-cross valve, 3-triple valve, 4-the first condenser, 5-attemperater, 6-heat-exchanger pump, 7-the second condenser, 8-circulating pump, 91-the first check valve, 92-the second check valve, 93-the 3rd check valve, 94-the 4th check valve, 10-fluid reservoir, 11-filter, 12-magnetic valve, 13-the first heating power expansion valve, 14-electric expansion valve, 15-the second heating power expansion valve, 16-economizer, the import of 161-system refrigerant, 162-system refrigerant exit, the import of 163-hydrojet, the outlet of 164-hydrojet, 17-separator, 18-blower fan, 19-evaporimeter.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment
As shown in Figure 1, the present invention includes the compressor 1 that is provided with mouth spray, the economizer 16 being connected with this compressor 1 mouth spray, the separator 17 that output is connected with this compressor 1 input, the triple valve 3 being connected with this compressor 1 output, the hot water processing unit (plant) being connected with this triple valve 3 by pipeline, be connected to the cross valve 2 on the pipeline between triple valve 3 and hot water processing unit (plant), the evaporimeter 19 being connected with this cross valve 2 respectively and the second condenser 7, the circulating pump 8 being connected with this second condenser 7 respectively and annular check valve group, the fluid reservoir 10 being connected with economizer 16 with annular check valve group respectively, and position is corresponding with evaporimeter 19, for making evaporimeter 19 realize the blower fan 18 of hot-swap feature, described separator 17 is connected with cross valve 2, and described evaporimeter 19 is connected with annular check valve group respectively with economizer 16, between described fluid reservoir 10 and economizer 16, be also provided with magnetic valve 12.Specifically, described hot water processing unit (plant) comprises attemperater 5, heat-exchanger pump 6 and the first condenser 4 connecting successively; Described the first condenser 4 is connected with triple valve 3, and this first condenser 4 is returned and is connected in attemperater 5; Described cross valve 2 is connected on the pipeline between the first condenser 4 and triple valve 3.
Between described economizer 16 and annular check valve group, be also provided with the first heating power expansion valve 13, and be also provided with the second heating power expansion valve 15 between this economizer 16 and magnetic valve 12.Annular check valve group comprises the first check valve 91, the second check valve 92, the 4th check valve 94 and the 3rd check valve 93 connecting successively by pipeline, and described the first check valve 91 is also connected with the 3rd check valve 93; Described the second condenser 7 is connected with the pipeline being arranged between the first check valve 91 and the 4th check valve 94, described economizer 16 is connected with the pipeline being arranged between the first check valve 91 and the 3rd check valve 93, and described evaporimeter 19 is connected with the pipeline being arranged between the 3rd check valve 93 and the 4th check valve 94.
Between described fluid reservoir 10 and economizer 16, be also provided with filter 11; Described fluid reservoir 10 is also connected with compressor 1 mouth spray by heating pipeline, and this heats and in pipeline, is also provided with electric expansion valve 14; The described pipeline that heats is between filter 11 and economizer 16.Economizer 16 in the present invention is prior art, it has system refrigerant import 161, system refrigerant exit 162, hydrojet import 163 and hydrojet outlet 164, wherein, the import 161 of system refrigerant is connected with filter 11, system refrigerant exit 162 is connected with the first heating power expansion valve 13, hydrojet import 163 is connected with the second heating power expansion valve 15, and hydrojet outlet 164 is connected with compressor 1.
Above-mentioned hardware system has formed an enclosed refrigerant-cycle systems, and equipment, in running, according to its user demand, can be realized five kinds of different mode of operations, below these several mode of operations of the present invention is described in detail.
One, refrigeration mode
When freezing summer, mode of operation of the present invention is single refrigeration mode, its course of work is: start respectively blower fan 18, circulating pump 8 and compressor 1, and open triple valve 3 and cross valve 2 and make compressor 1 be communicated with evaporimeter 19, close electric expansion valve 14 and magnetic valve 12 simultaneously.Compressor 1 brings into operation, and low-temp low-pressure gaseous refrigerant is compressed into high temperature and high pressure gaseous refrigerant, and its temperature can reach 125 ℃.High temperature and high pressure gaseous refrigerant starts release heat while flowing through evaporimeter 19 after by triple valve 3 and cross valve 2, blower fan 18 constantly drives flow of outside air pervaporation device 19 in the process of operation, high temperature refrigerant in outdoor air and evaporimeter 19 is realized Re Jiaore under the effect of the temperature difference, the temperature of air raises and directly drains, the heat release in evaporimeter 19 of the cold-producing medium of HTHP forms gas-liquid mixed state cold-producing medium, and flow out from evaporimeter 19, then after the 4th check valve 94, get back in fluid reservoir 10.
10 pairs of fraction liquid refrigerants of fluid reservoir store, and most of gaseous refrigerant is when flowing through filter 11, and impurity in cold-producing medium is further cleaned to be fallen, thereby strengthen the stability of system.Because electric expansion valve 14 and magnetic valve 12 are not opened, now all in closed condition, thereby cold-producing medium can directly carry out throttling by economizer 16 and under the effect of the first heating power expansion valve 13, high temperature and high pressure gaseous refrigerant becomes low-temp low-pressure liquid refrigerant under the effect of throttling, and its minimum temperature can reach-25 ℃.Low-temp low-pressure liquid refrigerant flows in the second condenser 7 by the first check valve 91, circulating pump 8 is constantly extracted into the water in air-conditioning duct in the second condenser 7, water in air conditioning pipe system exchanges under the effect of the temperature difference with the low-temperature refrigerant of-25 ℃, and water temperature flows back to after being constantly lowered carries out air conditioner refrigerating in air conditioning terminal.Water temperature absorbs the heat of air in room and uprises in the flow process in room, and in the second condenser 7, temperature reduces, and the heat of the cold-producing medium absorption air-conditioner circulating water in the second condenser 7 becomes the gas-liquid mixed state cold-producing medium of low-temp low-pressure again.
Cold-producing medium after the second condenser 7 heat exchange is being got back to separator 17 through cross valve 2, fraction liquid refrigerant is stored in separator 17, most of low-temp low-pressure gaseous refrigerant is got back to the gaseous state that compressor 1 is compressed into HTHP again, circulate and so forth, just can reach the object of air conditioner refrigerating.
Two, heating mode
While heating in the winter time, mode of operation of the present invention is single heating mode, its course of work is: start respectively blower fan 18, circulating pump 8 and compressor 1, and open triple valve 3 and cross valve 2 and make compressor 1 be communicated with the second condenser 7, open electric expansion valve 14 and magnetic valve 12 simultaneously.Compressor 1 brings into operation, and low-temp low-pressure gaseous refrigerant is compressed into high temperature and high pressure gaseous refrigerant, its temperature can reach 115 ℃, high temperature and high pressure gaseous refrigerant starts release heat while flowing through the second condenser 7 after by triple valve 3 and cross valve 2, circulating pump 8 is constantly extracted into the water in air-conditioning duct in the second condenser 7, the high temperature refrigerant of the water in air conditioning pipe system and 115 ℃ exchanges under the effect of the temperature difference, and water temperature flows back to after being constantly heated carries out air-conditioning heating (floor heating) in air conditioning terminal (floor heating pipe).Water temperature is release heat step-down in the flow process in room, and in the second condenser 7, temperature raises, and after the cold-producing medium cooling in the second condenser 7, becomes gas-liquid mixed state cold-producing medium.
From the cold-producing medium flowing out the second condenser 7, after the second check valve 92, get back in fluid reservoir 10,10 pairs of fraction liquid refrigerants of fluid reservoir store, most of gaseous refrigerant is when flowing through filter 11, and the impurity in cold-producing medium is further cleaned to be fallen, thereby strengthens the stability of system.Now system can be adjusted the unlatching size of electric expansion valve 14 and the opening time of magnetic valve 12 according to the variation of outdoor low temperature environment, and its effect is mainly the delivery temperature of constant compression machine, improves heat exchange efficiency.
，Yi road is flowed directly by getting back to the mouth spray of compressor 1 after electric expansion valve 14 in high temperature and high pressure gaseous refrigerant Fen San road after filtration, and enters into compressor 1; Lead up to after magnetic valve 12 and carry out through the second heating power expansion valve 15 the gas-liquid mixed state that throttling becomes low-temp low-pressure, the hydrojet import 163 by economizer 16 enters economizer 16; Last road high-temperature high-pressure refrigerant enters economizer 16 by the system refrigerant import 161 of economizer 16, in economizer, 16 two-way cold-producing medium, because the temperature difference is larger, from hydrojet outlet 164 is directly got back to compressor 1 after the low-temperature low-pressure refrigerant heat absorption entering from the hydrojet import 163 of economizer 16.
The cold-producing medium cooling entering from the system refrigerant import 161 of economizer 16, from system refrigerant exit 162, flow out the effect that the first heating power expansion valve 13 throttlings produce reducing temperature twices that enters.Now the cold-producing medium minimum temperature in system can be down to-60 ℃, low-temperature refrigerant is got back in evaporimeter 19 after the 3rd check valve 93, outdoor fan 18 constantly drives outdoor Cryogenic air by evaporimeter 19, even if still there is the temperature difference of 35 degree during outdoor air-25 ℃, now low-temperature low-pressure refrigerant forms a kind of gas-liquid mixed state after absorbing airborne heat, low-temperature refrigerant is separated by fraction liquid refrigerant by separator 17, most of cryogenic gaseous cold-producing medium is got back to compression again in compressor, circulation and so forth, just can reach and under low temperature environment, heat or the requirement of heating.
Three, hot water pattern
The present invention is when processing hot water, its course of work is: start respectively blower fan 18, heat-exchanger pump 6 and compressor 1, and open triple valve 3 and cross valve 2 is communicated with respectively the first condenser 4 with compressor 1 and the second condenser 7, open electric expansion valve 14 and magnetic valve 12 simultaneously.Compressor 1 brings into operation, the in the situation that of low temperature environment-25 ℃, compressor 1 is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, its temperature can reach 105 degree, when high temperature and high pressure gaseous refrigerant is flowed through the first condenser 4 by triple valve 3, heat-exchanger pump 6 is constantly recycled to the water in attemperater 5 in the first condenser 4, high temperature refrigerant in normal-temperature water and the first condenser 4 carries out thermal effect and changes under the effect of the temperature difference, and normal-temperature water is got back to again in attemperater 5 after being constantly heated.
High temperature and high pressure gaseous refrigerant release heat in the first condenser 4 forms gas-liquid mixed state cold-producing medium, and it is by rear inflow the second condenser 7 of cross valve 2.Due to not operation of circulating pump 8, now the water temperature of air-conditioning does not play the effect of heating, cold-producing medium in the second condenser 7 is successively by after the second check valve 92, fluid reservoir 10, filter 11,10 pairs of fraction liquid refrigerants of fluid reservoir store, most of gaseous refrigerant is when flowing through filter 11, impurity in cold-producing medium is further cleaned to be fallen, and strengthens the stability of system.Now system can be adjusted the unlatching size of electric expansion valve 14 and the opening time of magnetic valve 12 according to the variation of outdoor low temperature environment, and its effect is mainly the delivery temperature of constant compression machine, improves heat exchange efficiency.
，Yi road is flowed directly by getting back to the mouth spray of compressor 1 after electric expansion valve 14 in high temperature and high pressure gaseous refrigerant Fen San road after filtration, and enters into compressor 1; Lead up to after magnetic valve 12 and carry out through the second heating power expansion valve 15 the gas-liquid mixed state that throttling becomes low-temp low-pressure, the hydrojet import 163 by economizer 16 enters economizer 16; Last road high-temperature high-pressure refrigerant enters economizer 16 by the system refrigerant import 161 of economizer 16.Two-way cold-producing medium in economizer 16, because the temperature difference is larger, from hydrojet outlet 164 is directly got back to compressor 1 after the low-temperature low-pressure refrigerant heat absorption entering from the hydrojet import 163 of economizer 16.
From entering cold-producing medium cooling, economizer 16 system refrigerant imports 161 flow out from system refrigerant exit 162 effect that the first heating power expansion valve 13 throttlings produce reducing temperature twice that enters.Now the cold-producing medium minimum temperature in system can be down to-60 ℃, low-temperature refrigerant is got back in evaporimeter 19 after the 3rd check valve 93, outdoor fan 18 constantly drives outdoor Cryogenic air by evaporimeter 19, even if outdoor air still has the temperature difference of 35 degree while being-25 ℃, now low-temperature low-pressure refrigerant forms gas-liquid mixed state cold-producing medium after absorbing airborne heat, low temperature gas-liquid mixed state cold-producing medium is separated by fraction liquid refrigerant by separator 17, most of cryogenic gaseous cold-producing medium is got back to compression again in compressor 1, circulation and so forth, just can reach the order of processing hot water under low temperature environment.
Four, hot water, refrigeration mixed mode
When not only needed refrigeration but also needed hot water summer, the course of work of the present invention is: start respectively circulating pump 8, heat-exchanger pump 6 and compressor 1, and open triple valve 3 and cross valve 2 makes compressor 1 be communicated with evaporimeter 19, close electric expansion valve 14 and magnetic valve 12 simultaneously.Compressor 1 brings into operation, and low-temp low-pressure gaseous refrigerant is compressed into high temperature and high pressure gaseous refrigerant, and its temperature can reach 130 ℃.When high temperature and high pressure gaseous refrigerant is flowed through the first condenser 4 by triple valve 3, heat-exchanger pump 6 is constantly recycled to the water in attemperater 5 in the first condenser 4, high temperature refrigerant in normal-temperature water and the first condenser 4 carries out thermal effect and changes under the effect of the temperature difference, and normal-temperature water is got back to again in attemperater 5 after being constantly heated.
Start blower fan 18, high temperature and high pressure gaseous refrigerant release heat in the first condenser 4 forms gas-liquid mixed state cold-producing medium, the cold-producing medium of gas-liquid mixed state starts release heat while flowing through evaporimeter 19 after by triple valve 3 and cross valve 2, blower fan 18 constantly drives flow of outside air pervaporation device 19 in the process of operation, high temperature refrigerant in outdoor air and evaporimeter 19 is handed over heat at the effect Carrying Out Heat of the temperature difference, the temperature of air raises and directly drains, and from the cold-producing medium flowing out evaporimeter 19, after the 4th check valve 94, gets back to fluid reservoir 10.10 pairs of fraction liquid refrigerants of fluid reservoir store, and most of gaseous refrigerant is when flowing through filter 11, and the impurity in cold-producing medium further cleans, and strengthen the stability of system.Because electric expansion valve 14 and magnetic valve 12 are not opened, now in closed condition, thereby cold-producing medium can directly carry out throttling by economizer 16 in the effect of the first heating power expansion valve 13, the cold-producing medium of HTHP becomes low-temp low-pressure liquid refrigerant under the effect of throttling, and its minimum temperature can reach-25 ℃.
Low-temp low-pressure liquid refrigerant flows in the second condenser 7 by the first check valve 91, circulating pump 8 is constantly extracted into the water in air-conditioning duct in the second condenser 7, water in air conditioning pipe system exchanges under the effect of the temperature difference with the low-temperature refrigerant of-25 ℃, and water temperature flows back to after being constantly lowered carries out air conditioner refrigerating in air conditioning terminal.Water temperature absorbs the heat of air in room and uprises in the flow process in room, and in the second condenser 7, temperature reduces, and the heat of the cold-producing medium absorption air-conditioner circulating water in the second condenser 7 becomes the gas-liquid mixed state of low-temp low-pressure again.Intrasystem cold-producing medium is got back to separator 17 through cross valve 2, fraction liquid refrigerant is stored in separator, most of low-temp low-pressure gaseous refrigerant is got back to the gaseous state that compressor is compressed into HTHP again, and circulation reaches air conditioner refrigerating and domestic hot-water's object and so forth.In hot water or cold water's mixed mode processed, due to when refrigeration blower fan 18 can drain a large amount of heats, when controlling, while only having domestic hot-water in attemperater 5 to reach more than 50 ℃, just start blower fan 18 and move, can obtain free domestic hot-water like this, and improve the efficiency of system.
Five, heat, hot water mixed mode
When the present invention heats with processing hot water at the same time, its course of work is: start respectively blower fan 18, circulating pump 8, heat-exchanger pump 6 and compressor 1, and open triple valve 3 and cross valve 2 is communicated with respectively the first condenser 4 with compressor 1 and the second condenser 7, open electric expansion valve 14 and magnetic valve 12 simultaneously.Compressor 1 brings into operation, and the in the situation that of low temperature environment-25 ℃, compressor 1 is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and its temperature can reach 105 ℃.When high temperature and high pressure gaseous refrigerant is flowed through the first condenser 4 by triple valve 3, heat-exchanger pump 6 is constantly recycled to the water in water tank 5 in the first condenser 4, high temperature refrigerant in normal-temperature water and the first condenser 4 carries out thermal effect and changes under the effect of the temperature difference, normal-temperature water is got back to again after being constantly heated in attemperater 5, and the cold-producing medium of HTHP release heat in condenser forms gas-liquid mixed state cold-producing medium.
Cold-producing medium is by rear inflow the second condenser 7 of cross valve 2, now circulating pump 8 constantly carries out cycle heat exchange by the water in air-conditioning system in the second condenser 7, water temperature in air-conditioning system raises, release heat in room, in the second condenser 7, absorb heat, reach the effect of air-conditioning heating, cold-producing medium in the second condenser 7 is by the second check valve 92, fluid reservoir 10, after filter 11, 10 pairs of fraction liquid refrigerants of fluid reservoir store, most of gaseous refrigerant is when flowing through filter 11, impurity in cold-producing medium further cleans, the stability of enhancing system.Now cold-producing medium can be adjusted the unlatching size of electric expansion valve 14 and the opening time of magnetic valve 12 according to the variation of outdoor low temperature environment, and its effect is mainly the delivery temperature of constant compression machine, improves heat exchange efficiency.
After filtration, ，Yi road is flowed directly by getting back to the mouth spray of compressor 1 after electric expansion valve 14 in high temperature and high pressure gaseous refrigerant Fen San road, and enters into compressor 1; Lead up to after magnetic valve 12 and carry out through the second heating power expansion valve 15 the gas-liquid mixed state that throttling becomes low-temp low-pressure, the hydrojet import by economizer 16 enters economizer; Last road high-temperature high-pressure refrigerant enters economizer 16 by the system refrigerant import 161 of economizer 16.Two-way cold-producing medium in economizer 16, because the temperature difference is larger, from hydrojet outlet 164 is directly got back to compressor 1 after the low-temperature low-pressure refrigerant heat absorption entering from economizer 16 hydrojet imports 163.
The cold-producing medium cooling entering from economizer 16 system refrigerant imports 161, from system refrigerant exit 162, flow out, and enter the effect that the first heating power expansion valve 13 throttlings produce reducing temperature twice.Now the cold-producing medium minimum temperature in system can be down to-60 ℃, low-temperature refrigerant is got back in evaporimeter 19 after the 3rd check valve 93, outdoor fan 19 constantly drives outdoor Cryogenic air by evaporimeter 19, even if still there is the temperature difference of 35 degree during outdoor air-25 ℃, now low-temperature low-pressure refrigerant forms a kind of gas-liquid mixed state after absorbing airborne heat, low-temperature refrigerant is separated by fraction liquid refrigerant by separator 17, most of cryogenic gaseous cold-producing medium is got back to compression again in compressor, circulation and so forth, just can reach the order ground simultaneously heating under low temperature environment with processing hot water.
Those skilled in the art are according to the content of above-described embodiment, and after in conjunction with prior art and common practise, can know the technical scheme that the present invention is complete beyond all doubtly.And what deserves to be explained is; above-described embodiment is only preferably one of implementation of the present invention; should be in order to not limit the scope of the invention; in every case any change and polishing of having no essential meaning of having done under body design thought of the present invention and spirit; or be equal to displacement; its technical problem solving is consistent with the present invention in fact, also should be in protection scope of the present invention.
Claims (10)
1. air source low-temperature three combined supply heat pump Hot water units, it is characterized in that, comprise the compressor (1) that is provided with mouth spray, the economizer (16) being connected with this compressor (1) mouth spray, the separator (17) that output is connected with this compressor (1) input, the triple valve (3) being connected with this compressor (1) output, the hot water processing unit (plant) being connected with this triple valve (3) by pipeline, be connected to the cross valve (2) on the pipeline between triple valve (3) and hot water processing unit (plant), the evaporimeter (19) being connected with this cross valve (2) respectively and the second condenser (7), the circulating pump (8) and the annular check valve group that are connected with this second condenser (7) respectively, the fluid reservoir (10) being connected with economizer (16) with annular check valve group respectively, and the position blower fan (18) corresponding with evaporimeter (19), described separator (17) is connected with cross valve (2), and described evaporimeter (19) is connected with annular check valve group respectively with economizer (16), between described fluid reservoir (10) and economizer (16), be also provided with magnetic valve (12).
2. a kind of air source low-temperature three combined supply heat pump Hot water units according to claim 1, is characterized in that, between described fluid reservoir (10) and economizer (16), are also provided with filter (11); Described fluid reservoir (10) is also connected with compressor (1) mouth spray by heating pipeline, and this heats and in pipeline, is also provided with electric expansion valve (14); The described pipeline that heats is between filter and economizer.
3. a kind of air source low-temperature three combined supply heat pump Hot water units according to claim 2, is characterized in that, described hot water processing unit (plant) comprises attemperater (5), heat-exchanger pump (6) and the first condenser (4) connecting successively; Described the first condenser (4) is connected with triple valve (3), and this first condenser (4) is returned and is connected in attemperater (5); Described cross valve (2) is connected on the pipeline between the first condenser (4) and triple valve (3).
4. a kind of air source low-temperature three combined supply heat pump Hot water units according to claim 3, it is characterized in that, described annular check valve group comprises the first check valve (91), the second check valve (92), the 4th check valve (94) and the 3rd check valve (93) connecting successively by pipeline, and described the first check valve (91) is also connected with the 3rd check valve (93); Described the second condenser (7) is connected with the pipeline being arranged between the first check valve (91) and the 4th check valve (94), described economizer (16) is connected with the pipeline being arranged between the first check valve (91) and the 3rd check valve (93), and described evaporimeter (19) is connected with the pipeline being arranged between the 3rd check valve (93) and the 4th check valve (94).
5. a kind of air source low-temperature three combined supply heat pump Hot water units according to claim 4, it is characterized in that, between described economizer (16) and annular check valve group, be also provided with the first heating power expansion valve (13), and be also provided with the second heating power expansion valve (15) between this economizer (16) and magnetic valve (12).
6. an implementation method for air source low-temperature three combined supply heat pump Hot water units, is characterized in that, comprises the following steps:
(1) start respectively blower fan, circulating pump and compressor, and open triple valve and cross valve and make compressor be communicated with evaporimeter, close electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and successively by entering into evaporimeter after triple valve and cross valve, carry out heat exchange with the outdoor high temperature air of being brought into by blower fan in evaporimeter, form gas-liquid mixed state cold-producing medium;
(3) gas-liquid mixed state cold-producing medium flows out from evaporimeter, and through the 4th check valve, enters into fluid reservoir and carry out gas-liquid separation;
(4) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(5) gaseous refrigerant after filtering enters into the first heating power expansion valve by economizer and carries out throttling, form low-temp low-pressure liquid refrigerant, and enter into the second condenser through the first check valve, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct reduces, and environment is freezed, this low-temp low-pressure liquid refrigerant forms low-temp low-pressure gas-liquid mixed state cold-producing medium simultaneously;
(6) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(7) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(8) circulation step (1)～(7) successively.
7. an implementation method for air source low-temperature three combined supply heat pump Hot water units, is characterized in that, comprises the following steps:
(1) start respectively blower fan, circulating pump and compressor, and open triple valve and cross valve makes compressor be communicated with the second condenser, open electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and successively by entering into the second condenser after triple valve and cross valve, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct raises, and environment is heated, this high temperature and high pressure gaseous refrigerant forms HTHP gas-liquid mixed state cold-producing medium simultaneously;
(3) HTHP gas-liquid mixed state cold-producing medium flows out from the second condenser, and through the second check valve, enters into fluid reservoir and carry out gas-liquid separation;
(4) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(5) flow in the high temperature and high pressure gaseous refrigerant Fen San road after filtering, and wherein, first via high temperature and high pressure gaseous refrigerant forms low-temp low-pressure gaseous refrigerant after by electric expansion valve throttling and gets back in compressor; The second road high temperature and high pressure gaseous refrigerant enters into the second heating power expansion valve and carries out throttling, forms low-temp low-pressure liquid refrigerant, and enters into economizer; Third Road high temperature and high pressure gaseous refrigerant enters into economizer, and the low-temp low-pressure liquid refrigerant of coming in the second tunnel carries out heat exchange;
The low-temp low-pressure liquid refrigerant of coming in (6) second tunnels forms low-temp low-pressure gaseous refrigerant and gets back in compressor, the high temperature and high pressure gaseous refrigerant that Third Road is come in simultaneously forms normal temperature high voltage gaseous refrigerant, and enter into the first heating power expansion valve and carry out throttling, form low-temp low-pressure liquid refrigerant;
(7) low-temp low-pressure liquid refrigerant enters into evaporimeter through the 3rd check valve, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(8) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(9) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(10) circulation step (1)～(9) successively.
8. an implementation method for air source low-temperature three combined supply heat pump Hot water units, is characterized in that, comprises the following steps:
(1) start respectively blower fan, heat-exchanger pump and compressor, and open triple valve and cross valve is communicated with respectively the first condenser with compressor and the second condenser, open electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and enter into the first condenser by triple valve, heat-exchanger pump is pumped into the normal-temperature water in attemperater in the first condenser simultaneously, carry out heat exchange with high temperature and high pressure gaseous refrigerant, form hot water, high temperature and high pressure gaseous refrigerant forms gas-liquid mixed state cold-producing medium;
(3) hot water is got back in attemperater through the first condenser, and gas-liquid mixed state cold-producing medium enters into fluid reservoir and carries out gas-liquid separation through cross valve, the second condenser, the second check valve successively simultaneously;
(4) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(5) flow in the high temperature and high pressure gaseous refrigerant Fen San road after filtering, and wherein, first via high temperature and high pressure gaseous refrigerant forms low-temp low-pressure gaseous refrigerant after by electric expansion valve throttling and gets back in compressor; The second road high temperature and high pressure gaseous refrigerant enters into the second heating power expansion valve and carries out throttling, forms low-temp low-pressure liquid refrigerant, and enters into economizer; Third Road high temperature and high pressure gaseous refrigerant enters into economizer, and the low-temp low-pressure liquid refrigerant of coming in the second tunnel carries out heat exchange;
The low-temp low-pressure liquid refrigerant of coming in (6) second tunnels forms low-temp low-pressure gaseous refrigerant and gets back in compressor, the high temperature and high pressure gaseous refrigerant that Third Road is come in simultaneously forms normal temperature high voltage gaseous refrigerant, and enter into the first heating power expansion valve and carry out throttling, form low-temp low-pressure liquid refrigerant;
(7) low-temp low-pressure liquid refrigerant enters into evaporimeter through the 3rd check valve, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(8) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(9) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(10) circulation step (1)～(9) successively.
9. an implementation method for air source low-temperature three combined supply heat pump Hot water units, is characterized in that, comprises the following steps:
(1) start respectively circulating pump, heat-exchanger pump and compressor, and open triple valve and cross valve makes compressor be communicated with evaporimeter, close electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and enter into the first condenser by triple valve, heat-exchanger pump is pumped into the normal-temperature water in attemperater in the first condenser simultaneously, carry out heat exchange with high temperature and high pressure gaseous refrigerant, form hot water, high temperature and high pressure gaseous refrigerant forms gas-liquid mixed state cold-producing medium;
(3) hot water is got back in attemperater through the first condenser, start blower fan, gas-liquid mixed state cold-producing medium enters into evaporimeter through triple valve, cross valve successively simultaneously, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(4) gas-liquid mixed state cold-producing medium flows out from evaporimeter, and through the 4th check valve, enters into fluid reservoir and carry out gas-liquid separation;
(5) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(6) gaseous refrigerant after filtering enters into the first heating power expansion valve by economizer and carries out throttling, form low-temp low-pressure liquid refrigerant, and enter into the second condenser through the first check valve, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct reduces, and environment is freezed, this low-temp low-pressure liquid refrigerant forms low-temp low-pressure gas-liquid mixed state cold-producing medium simultaneously;
(7) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(8) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(9) circulation step (1)～(8) successively.
10. an implementation method for air source low-temperature three combined supply heat pump Hot water units, is characterized in that, comprises the following steps:
(1) start respectively blower fan, circulating pump, heat-exchanger pump and compressor, and open triple valve and cross valve is communicated with respectively the first condenser with compressor and the second condenser, open electric expansion valve and magnetic valve simultaneously;
(2) compressor is compressed into high temperature and high pressure gaseous refrigerant by low-temp low-pressure gaseous refrigerant, and enter into the first condenser by triple valve, heat-exchanger pump is pumped into the normal-temperature water in attemperater in the first condenser simultaneously, carry out heat exchange with high temperature and high pressure gaseous refrigerant, form hot water, high temperature and high pressure gaseous refrigerant forms gas-liquid mixed state cold-producing medium;
(3) hot water is got back in attemperater through the first condenser, gas-liquid mixed state cold-producing medium enters into the second condenser through cross valve simultaneously, carry out heat exchange with the water in the air-conditioning duct being pumped into by circulating pump, water temperature in air-conditioning duct raises, and environment is heated, this high temperature and high pressure gaseous refrigerant forms HTHP gas-liquid mixed state cold-producing medium simultaneously;
(4) HTHP gas-liquid mixed state cold-producing medium flows out from the second condenser, and through the second check valve, enters into fluid reservoir and carry out gas-liquid separation;
(5) after separation, liquid refrigerant is stored in fluid reservoir, and gaseous refrigerant enters into filter and filters;
(6) flow in the high temperature and high pressure gaseous refrigerant Fen San road after filtering, and wherein, first via high temperature and high pressure gaseous refrigerant forms low-temp low-pressure gaseous refrigerant after by electric expansion valve throttling and gets back in compressor; The second road high temperature and high pressure gaseous refrigerant enters into the second heating power expansion valve and carries out throttling, forms low-temp low-pressure liquid refrigerant, and enters into economizer; Third Road high temperature and high pressure gaseous refrigerant enters into economizer, and the low-temp low-pressure liquid refrigerant of coming in the second tunnel carries out heat exchange;
The low-temp low-pressure liquid refrigerant of coming in (7) second tunnels forms low-temp low-pressure gaseous refrigerant and gets back in compressor, the high temperature and high pressure gaseous refrigerant that Third Road is come in simultaneously forms normal temperature high voltage gaseous refrigerant, and enter into the first heating power expansion valve and carry out throttling, form low-temp low-pressure liquid refrigerant;
(8) low-temp low-pressure liquid refrigerant enters into evaporimeter through the 3rd check valve, carries out heat exchange with the outdoor Cryogenic air of being brought into by blower fan in evaporimeter, forms low-temp low-pressure gas-liquid mixed state cold-producing medium;
(9) low-temp low-pressure gas-liquid mixed state cold-producing medium enters into separator through cross valve and carries out gas-liquid separation;
(10) separated low-temp low-pressure liquid refrigerant is stored in separator, and low-temp low-pressure gaseous refrigerant enters into compressor;
(11) circulation step (1)～(10) successively.
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| CN105222390A (en) * | 2014-07-02 | 2016-01-06 | 约克广州空调冷冻设备有限公司 | A kind of total heat recovery system |
| CN105222390B (en) * | 2014-07-02 | 2018-02-09 | 约克广州空调冷冻设备有限公司 | A kind of total heat recovery system |
| CN108716786A (en) * | 2018-08-15 | 2018-10-30 | 浙江森友环保成套设备有限公司 | A kind of air-cooled air-source drying structure |
| CN109780749A (en) * | 2019-03-14 | 2019-05-21 | 哈尔滨工业大学 | Utilize the ultra-low-loop temperature air source heat pump unit of diurnal temperature range outside accumulation of heat balance cylinder |
| WO2021008331A1 (en) * | 2019-07-15 | 2021-01-21 | 青岛海尔空调电子有限公司 | Heat pump unit |
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| CN1529097A (en) * | 2003-10-16 | 2004-09-15 | 大连冰山集团有限公司 | Heating-air conditioning-hot-water system |
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| CN103557633B (en) | 2015-08-05 |
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