CN202757346U - Central air-conditioning and hot water all-in-one machine - Google Patents

Central air-conditioning and hot water all-in-one machine Download PDF

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Publication number
CN202757346U
CN202757346U CN 201220439393 CN201220439393U CN202757346U CN 202757346 U CN202757346 U CN 202757346U CN 201220439393 CN201220439393 CN 201220439393 CN 201220439393 U CN201220439393 U CN 201220439393U CN 202757346 U CN202757346 U CN 202757346U
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China
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heat exchanger
valve
exchanger tube
compressor
check valve
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CN 201220439393
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Chinese (zh)
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陆本度
廖志强
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VTech Technology (Shenzhen) Co. Ltd.
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E-tech Heat Pump (shenzhen) Co Ltd
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Abstract

The utility model provides a central air-conditioning and hot water all-in-one machine. The all-in-one machine comprises a water storage tank (12), a compressor (4), a first heat exchanger (1), a four-way valve (6), a second heat exchanger (2), a liquid storage unit (7), a sub-cooler (8), an expansion valve (11), a third heat exchanger (3), a gas-liquid separator (5), a first one-way valve (18), a second one-way valve (19), a third one-way valve (20) and a fourth one-way valve (21). The first one-way valve (18) is arranged between the second heat exchanger (2) and the liquid storage unit (7), the second one-way valve (19) is arranged between the expansion valve (11) and the third heat exchanger (3), and the fourth one-way valve (21) is arranged between the expansion valve (11) and the second heat exchanger (2). According to the central air-conditioning and hot water all-in-one machine, all one-way valves are controlled, so that functions of hot water supply and air conditioning cooling and heating can be achieved, and the machine is applicable to cold areas due to the utilization of the enhanced vapor injection technology.

Description

Central air-conditioning and hot water integrated machine
Technical field
The utility model relates to water heater and air conditioner field, more particularly, relates to a kind of central air-conditioning and hot water integrated machine.
Background technology
At present, in a lot of dwelling houses and commercial building, need to use the central air-conditioning heating and cooling, need to use heating equipment, provide hot water such as boiler, water heater etc., for energy-conserving and environment-protective and save equipment investment, the hot-water air-conditioning all-in-one is brought into use in many places.
But in the winter of severe cold area, when outdoor temperature was very low, the off-premises station heat-exchange capacity of hot-water air-conditioning all-in-one descended, and the return-air amount of the normal gas returning port of compressor reduces, and compressor horsepower reduces, and can not bring into play best effects, and the heating outlet capacity descends.
The utility model content
Technical problem to be solved in the utility model is, provide a kind of and can increase compressor return air amount, the central air-conditioning of raising the efficiency and hot water integrated machine at low temperature environment, can give the indoor heating cooling, also can provide hot water to the user, adopt simultaneously the air injection enthalpy-increasing technology, thereby can guarantee the severe cold area warm hot water demand of confession in winter.
The technical scheme that its technical problem that solves the utility model adopts is, design a kind of central air-conditioning and hot water integrated machine, comprise storage tank, compressor, First Heat Exchanger, cross valve, the second heat exchanger, reservoir, subcooler, expansion valve, the 3rd heat exchanger, gas-liquid separator, be arranged on the first check valve between described the second heat exchanger and the described reservoir, be arranged on the second check valve between described expansion valve and the 3rd heat exchanger, be arranged on the 3rd check valve between described the 3rd heat exchanger and the reservoir, and be arranged on the 4th check valve between described expansion valve and the second heat exchanger; Described storage tank connects and composes the hot water supply loop by the water side heat exchanger tube of heat exchanging water pipe and described First Heat Exchanger, and is provided with the hot water water pump described heat exchanging water pipe; The second heat exchanger tube of described the second heat exchanger links to each other with the air conditioning terminal heat exchanger and consists of air conditioner refrigerating and heat closed circuit, and described air conditioner refrigerating heats closed circuit and is provided with water pump of air conditioner.
The cold-producing medium of described compressor has first-class path and second path, described first-class path is: described the first check valve and the second check valve are opened, the 3rd check valve and the 4th closed check valve, flow through the successively refrigerant side heat exchanger tube of described First Heat Exchanger of the cold-producing medium of described compressor compresses, described cross valve, the first heat exchanger tube of described the second heat exchanger, described reservoir, the 3rd heat exchanger tube of described subcooler, described filter, described liquid-sighting glass, described expansion valve, get back to described cross valve behind described the 3rd heat exchanger and then flow to described gas-liquid separator, flow back at last compressor; Described second path is: described the first check valve and the second closed check valve, the 3rd check valve and the 4th check valve are opened, the cold-producing medium of described compressor compresses is flowed through successively and is got back to described cross valve behind the first heat exchanger tube of the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, described the 3rd heat exchanger, described reservoir, the 3rd heat exchanger tube of described subcooler, described filter, described liquid-sighting glass, described expansion valve, described the second heat exchanger and then flow to described gas-liquid separator, flows back at last compressor.
Be provided with the air injection enthalpy-increasing that is connected with the 4th heat exchanger tube of described subcooler between the 3rd heat exchanger tube of described reservoir and described subcooler along separate routes, described air injection enthalpy-increasing is provided with electric expansion valve along separate routes, and described the 4th heat exchanger tube is connected to described compressor.
When environment temperature is lower than 0 when spending, described central air-conditioning and hot water integrated machine can be selected to increase enthalpy list water heating mode, increase enthalpy list air-conditioning heating pattern and increase the heating of enthalpy water and air-conditioning heating pattern.Increase in the enthalpy list water heating mode described, described electric expansion valve is opened, connect described air injection enthalpy-increasing along separate routes, and, described hot water water pump is opened, described water pump of air conditioner is closed, refrigerant fluid is by the described first-class path described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, the first heat exchanger tube of described the second heat exchanger, described the first check valve, described reservoir, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the second check valve, get back to described cross valve behind described the 3rd heat exchanger and then flow to described gas-liquid separator, flow back at last in the compressor, and, in the described reservoir out refrigerant fluid some through flow through the 4th heat exchanger tube of described subcooler of described electric expansion valve, then directly enter in the compressor; Increase in the enthalpy list air-conditioning heating pattern described, described electric expansion valve is opened, connect described air injection enthalpy-increasing along separate routes, and, described hot water water pump cuts out, described water pump of air conditioner is opened, refrigerant fluid is by described first-class path, the described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, the first heat exchanger tube of described the second heat exchanger, described the first check valve, described reservoir, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the second check valve, get back to described cross valve behind described the 3rd heat exchanger and then flow to described gas-liquid separator, flow back at last in the compressor, and, in the described reservoir out refrigerant fluid some through flow through the 4th heat exchanger tube of described subcooler of described electric expansion valve, then directly enter in the compressor; Increase in the heating of enthalpy water and the air-conditioning heating pattern described, described electric expansion valve is opened, connect described air injection enthalpy-increasing along separate routes, and, described hot water water pump and described water pump of air conditioner are opened, refrigerant fluid is by described first-class path, the described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, the first heat exchanger tube of described the second heat exchanger, described the first check valve, described reservoir, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the second check valve, get back to described cross valve behind described the 3rd heat exchanger and then flow to described gas-liquid separator, flow back at last in the compressor, and, in the described reservoir out refrigerant fluid some through flow through the 4th heat exchanger tube of described subcooler of described electric expansion valve, then directly enter in the compressor.
When environment temperature is higher than 0 when spending, described central air-conditioning and hot water integrated machine comprise single water heating mode, single air-conditioning heating pattern, water heating and air-conditioning heating pattern, single air conditioner refrigerating pattern and water heating and air conditioner refrigerating pattern.In described single water heating mode, described electric expansion valve is closed, described hot water water pump is opened, described water pump of air conditioner is closed, refrigerant fluid is by described first-class path, the described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, the first heat exchanger tube of described the second heat exchanger, described the first check valve, described reservoir, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the second check valve, get back to described cross valve behind described the 3rd heat exchanger and then flow to described gas-liquid separator, flow back at last in the compressor; In described single air-conditioning heating pattern, described electric expansion valve is closed, described hot water water pump cuts out, described water pump of air conditioner is opened, refrigerant fluid is by the described first-class path described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, the first heat exchanger tube of described the second heat exchanger, described the first check valve, described reservoir, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the second check valve, get back to described cross valve behind described the 3rd heat exchanger and then flow to described gas-liquid separator, flow back at last in the compressor; In described water heating and air-conditioning heating pattern, described electric expansion valve is closed, described hot water water pump and described water pump of air conditioner are opened, refrigerant fluid is by described first-class path, the described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, the first heat exchanger tube of described the second heat exchanger, described the first check valve, described reservoir, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the second check valve, get back to described cross valve behind described the 3rd heat exchanger and then flow to described gas-liquid separator, flow back at last in the compressor; In described single air conditioner refrigerating pattern, described electric expansion valve is closed, described hot water water pump cuts out, described water pump of air conditioner is opened, refrigerant fluid is by described second path, the described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, described the 3rd heat exchanger, the described reservoir of described the 3rd check valve, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the 4th check valve, get back to described cross valve behind the first heat exchanger tube of described the second heat exchanger and then flow to described gas-liquid separator, flow back at last in the compressor; In described water heating and air conditioner refrigerating pattern, described electric expansion valve is closed, described hot water water pump and described water pump of air conditioner are opened, described the 3rd heat exchanger stops heat exchange work, refrigerant fluid is by described second path, the described compressor of flowing through successively, the refrigerant side heat exchanger tube of described First Heat Exchanger, described cross valve, described the 3rd check valve, described reservoir, the 3rd heat exchanger tube of described subcooler, described expansion valve, described the 4th check valve, get back to described cross valve behind the first heat exchanger tube of described the second heat exchanger and then flow to described gas-liquid separator, flow back in the compressor at last.
Described central air-conditioning and hot water integrated machine also comprise filter and the liquid-sighting glass that is connected in turn between described the 3rd heat exchanger tube and the expansion valve.
Described central air-conditioning and hot water integrated machine also comprise shell; Described storage tank, compressor, First Heat Exchanger, cross valve, the second heat exchanger, reservoir, subcooler, filter, liquid-sighting glass, expansion valve, the 3rd heat exchanger, gas-liquid separator, the first check valve, the second check valve, the 3rd check valve and the 4th check valve are arranged in the described shell.
Described central air-conditioning and hot water integrated machine, built-in stainless steel press-bearing water tank, shell adopt the aluminium alloy flap to combine.
Described central air-conditioning and hot water integrated machine, described the 3rd heat exchanger is arranged in the outdoor environment, and inside is provided with for the blower fan of strengthening heat exchange.
Described central air-conditioning and hot water integrated machine, use safety and environmental protection and the R134A that do not damage the ozone layer as cold-producing medium.
The utility model can reach following beneficial effect: by First Heat Exchanger, the second heat exchanger and the 3rd heat exchanger are set, carry out the different contrary Carnot cycle loop of check valve switching formation and realize the several functions such as air conditioner refrigerating heating, hot water supply, and, by using subcooler to form air injection enthalpy-increasing along separate routes, increase the compressor air-discharging amount, the circularly cooling dosage that heat exchanger indoor unit heats increases, improved the efficient of compressor, increase the heating capacity of compressor under severe cold, thereby can guarantee the severe cold area warm hot water demand of confession in winter.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the parts connection diagram of the utility model central air-conditioning and hot water integrated machine;
Fig. 2 is the schematic flow sheet of single water heating of the utility model central air-conditioning and hot water integrated machine;
Fig. 3 is the schematic flow sheet of single air-conditioning heating of the utility model central air-conditioning and hot water integrated machine;
Fig. 4 is the water heating of the utility model central air-conditioning and hot water integrated machine and the schematic flow sheet of air-conditioning heating;
Fig. 5 is the schematic flow sheet of single air conditioner refrigerating of the utility model central air-conditioning and hot water integrated machine;
Fig. 6 is the water heating of the utility model central air-conditioning and hot water integrated machine and the schematic flow sheet of air conditioner refrigerating;
Fig. 7 is the schematic flow sheet that increases the heating of enthalpy list water of the utility model central air-conditioning and hot water integrated machine;
Fig. 8 is the schematic flow sheet that increases enthalpy list air-conditioning heating of the utility model central air-conditioning and hot water integrated machine;
Fig. 9 is the schematic flow sheet that increases the heating of enthalpy water and air-conditioning heating of the utility model central air-conditioning and hot water integrated machine;
Figure 10 is the outside schematic diagram of the utility model central air-conditioning and hot water integrated machine.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
As shown in Figure 1, an embodiment who provides for the utility model, a kind of central air-conditioning and hot water integrated machine comprise the shell (not shown), be fixedly installed on the storage tank 12 in the described shell, air-condition assembly and with described storage tank 12, the pipeline that air-condition assembly links to each other, air-condition assembly comprises compressor 4, First Heat Exchanger 1, cross valve 6, the second heat exchanger 2, reservoir 7, subcooler 8, filter 9, liquid-sighting glass 10, expansion valve 11, the 3rd heat exchanger 3, gas-liquid separator 5, be arranged on the first check valve 18 between described the second heat exchanger 2 and the described reservoir 7, be arranged on the second check valve 19 between described expansion valve 11 and the 3rd heat exchanger 3, be arranged on the 3rd check valve 20 between described the 3rd heat exchanger 3 and the reservoir 7, and be arranged on the 4th check valve 21 between described expansion valve 11 and the second heat exchanger 2 etc.
Storage tank 12 connects and composes the hot water supply loop by the water side heat exchanger tube 102 of heat exchanging water pipe and First Heat Exchanger 1, and is provided with hot water water pump 13 the heat exchanging water pipe.Storage tank 12 also is connected with a water inlet pipe and feed pipe, and water inlet pipe is connected with running water pipe and is used for adding water to storage tank 12, and water feeding one-way valve 15 is installed above the water inlet pipe, is equipped with above the feed pipe for water one-way valve 16.
The second heat exchanger tube 202 of the second heat exchanger 2 links to each other with air conditioning terminal heat exchanger 17 and consists of air conditioner refrigerating and heat closed circuit, and air conditioner refrigerating heats closed circuit and is provided with water pump of air conditioner 14.
The 3rd heat exchanger 3 carries out heat exchange with outdoor environment, and the 3rd heat exchanger 3 can be by installing blower fan, to strengthen heat exchange.This blower fan can adopt 8 grades of low rotary speed fans, to reduce the operation noise.
When work, cold-producing medium has first-class path and second path, first-class path is: the first check valve 18 and the second check valve 19 are opened, the 3rd check valve 20 and the 4th check valve 21 are closed, the cold-producing medium of compressor 4 compression is flowed through successively and is got back to cross valve 6 behind the 3rd heat exchanger tube 801, expansion valve 11, the 3rd heat exchanger 3 of the first heat exchanger tube 201, reservoir 7, subcooler 8 of refrigerant side heat exchanger tube 101, cross valve 6, the second heat exchanger 2 of First Heat Exchanger 1 and then flow to gas-liquid separator 5, flows back at last compressor 4.The second path is: the first check valve 18 and the second check valve 19 are closed, the 3rd check valve 20 and the 4th check valve 21 are opened, the cold-producing medium of compressor 4 compression is flowed through successively and is got back to cross valve 6 behind first heat exchanger tube 201 of the 3rd heat exchanger tube 801, expansion valve 11, the second heat exchanger 2 of refrigerant side heat exchanger tube 101, cross valve 6, the 3rd heat exchanger 3, reservoir 7, subcooler 8 of First Heat Exchanger 1 and then flow to gas-liquid separator 5, flows back at last compressor 4.
Be provided with the air injection enthalpy-increasing that is connected with the 4th heat exchanger tube 802 of subcooler 8 between the 3rd heat exchanger tube 801 of reservoir 7 and subcooler 8 along separate routes, this shunt is provided with electric expansion valve 22, the four heat exchanger tubes and is connected directly to compressor 4.
When outdoor environment temperature is very low, subcooler 8 work, electric expansion valve 22 is opened, understand some through flow through the 4th heat exchanger tube 802 of subcooler 8 of electric expansion valve 22 from 7 li refrigerant fluids out of reservoir, carry out heat exchange with the 3rd heat exchanger tube 801 of the subcooler 8 of flowing through, on the one hand the refrigerant fluid of the 3rd heat exchanger tube 801 of flowing through is carried out before the throttling excessively coldly, increase enthalpy difference; On the other hand, low-pressure low-temperature refrigerant fluid through the 4th heat exchanger tube 802 of flowing through after electric expansion valve 22 step-downs is carried out suitable preheating, so that this part refrigerant fluid reaches suitable middle pressure, then directly enter and carry out second-compressed in the compressor 4, improved the efficient of compressor.
The utility model central air-conditioning and hot water integrated machine can take five large models to tackle air-conditioning and hot water demand in each in season, and outdoor environment temperature is higher than 0 when spending, and electric expansion valve 22 is closed, and air injection enthalpy-increasing disconnects along separate routes, and subcooler 8 stops heat exchange work:
As shown in Figure 2, in excessive season in spring and autumn, environment temperature is suitable, when not needing to turn on the aircondition, moves single water heating mode, produces the required hot water of life.When central air-conditioning and hot water integrated machine carry out single water heating, hot water water pump 13 is opened, water pump of air conditioner 14 is closed, the second heat exchanger 2 stops heat exchange work, refrigerant fluid is flowed through successively by first-class path and is got back to cross valve 6 behind the refrigerant side heat exchanger tube 101, cross valve 6, reservoir 7, filter 9, liquid-sighting glass 10, expansion valve 11, the 3rd heat exchanger 3 of compressor 4, First Heat Exchanger 1 and then flow to described gas-liquid separator 5, flow back at last in the compressor 4, finish a circulation.In this thermodynamic cycle, First Heat Exchanger 1 is equivalent to condenser, the 3rd heat exchanger 3 is equivalent to evaporimeter, absorption refrigeration agent side heat exchanger tube 101 liberated heats when the domestic hot-water of hot water supply loop flows through the water side heat exchanger tube 102 of First Heat Exchanger 1 and being heated, the user can obtain the required hot water of life by opening for water one-way valve 16;
As shown in Figure 3, in the winter time, on daytime, the required hot water amount that lives is few, and the water supply water temperature reaches temperature required in the storage tank, moves single air-conditioning heating pattern, improves indoor air temperature.When central air-conditioning and hot water integrated machine carry out single air-conditioning heating, hot water water pump 13 cuts out, First Heat Exchanger 1 stops heat exchange work, water pump of air conditioner 14 is opened, refrigerant fluid is flowed through successively by first-class path and is got back to cross valve 6 behind first heat exchanger tube 201, reservoir 7, filter 9, liquid-sighting glass 10, expansion valve 11, the 3rd heat exchanger 3 of compressor 4, cross valve 6, the second heat exchanger 2 and then flow to gas-liquid separator 5, flow back at last in the compressor 4, finish a circulation.In this thermodynamic cycle, the second heat exchanger 2 is equivalent to condenser, the 3rd heat exchanger 3 is equivalent to evaporimeter, the air conditioning hot that air conditioner refrigerating heats closed circuit absorbs the first heat exchanger tube 201 liberated heats when flowing through the second heat exchanger tube 202 of the second heat exchanger 2, thereby obtains the required circulating hot water of air-conditioning heating;
As shown in Figure 4, in the winter time, in evening, the required hot water amount that lives is large, and water temperature reduces in the storage tank, and the heating of operation water and air-conditioning heating pattern are produced the required hot water of life and improved simultaneously indoor air temperature.When central air-conditioning and hot water integrated machine carry out water heating and air-conditioning heating, hot water water pump 13 and water pump of air conditioner 14 are opened, refrigerant fluid is flowed through successively by first-class path and is got back to cross valve 6 behind first heat exchanger tube 201, reservoir 7, filter 9, liquid-sighting glass 10, expansion valve 11, the 3rd heat exchanger 3 of refrigerant side heat exchanger tube 101, cross valve 6, the second heat exchanger 2 of compressor 4, First Heat Exchanger 1 and then flow to gas-liquid separator 5, flow back at last in the compressor 4, finish a circulation.In this thermodynamic cycle, First Heat Exchanger 1 and the second heat exchanger 2 are equivalent to condenser, the 3rd heat exchanger 3 is equivalent to evaporimeter, the air conditioning hot that absorption refrigeration agent side heat exchanger tube 101 liberated heats when the domestic hot-water of hot water supply loop flows through the water side heat exchanger tube 102 of First Heat Exchanger 1 and the required hot water that obtains to live, air conditioner refrigerating heat closed circuit absorbs the first heat exchanger tube 201 liberated heats when flowing through the second heat exchanger tube 202 of the second heat exchanger 2 and obtains the required circulating hot water of air-conditioning heating;
As shown in Figure 5, in summer, on daytime, the required hot water amount that lives is few, and water temperature reaches temperature required in the storage tank, moves single air conditioner refrigerating pattern, reduces indoor air temperature.When central air-conditioning and hot water integrated machine carry out single air conditioner refrigerating, hot water water pump 13 cuts out, First Heat Exchanger 1 stops heat exchange work, water pump of air conditioner 14 is opened, refrigerant fluid is flowed through successively by the second path and is got back to cross valve 6 behind the first heat exchanger tube 201 of compressor 4, cross valve 6, the 3rd heat exchanger 3, reservoir 7, filter 9, liquid-sighting glass 10, expansion valve 11, the second heat exchanger 2 and then flow to gas-liquid separator 5, flow back at last in the compressor 4, finish a circulation.In this thermodynamic cycle, the second heat exchanger 2 is equivalent to evaporimeter, the 3rd heat exchanger 3 is equivalent to condenser, the evaporation aspiration flow heated the heat of the air conditioning hot of closed circuit through the air conditioner refrigerating of the second heat exchanger tube 202 when refrigerant fluid was flowed through the first heat exchanger tube 201 of the second heat exchanger 2, thereby obtained the required circulating water of air conditioner refrigerating;
As shown in Figure 6, in summer, in evening, the required hot water amount that lives is large, and water temperature reduces in the storage tank, and the heating of operation water and air conditioner refrigerating pattern are produced the required hot water of life and reduced simultaneously indoor air temperature.When central air-conditioning and hot water integrated machine carry out water heating and air conditioner refrigerating, hot water water pump 13 and described water pump of air conditioner 14 are opened, described the 3rd heat exchanger 3 stops heat exchange work, refrigerant fluid is flowed through successively by the second path and is got back to cross valve 6 behind first heat exchanger tube 201 of refrigerant side heat exchanger tube 101, cross valve 6, reservoir 7, filter 9, liquid-sighting glass 10, expansion valve 11, the second heat exchanger 2 of compressor 4, First Heat Exchanger 1 and then flow to gas-liquid separator 5, flow back at last in the compressor 4, finish a circulation.In this thermodynamic cycle, First Heat Exchanger 1 is equivalent to condenser, the second heat exchanger 2 is equivalent to evaporimeter, absorption refrigeration agent side heat exchanger tube 101 liberated heats when the domestic hot-water of hot water supply loop flows through the water side heat exchanger tube 102 of First Heat Exchanger 1 and the required hot water that obtains to live, the evaporation aspiration flow heated the heat of the air conditioning hot of closed circuit through the air conditioner refrigerating of the second heat exchanger tube 202 when refrigerant fluid was flowed through the first heat exchanger tube 201 of the second heat exchanger 2, thereby obtained the required circulating water of air conditioner refrigerating.This circulation is lower, is equivalent to the transfer of heat of indoor environment in the domestic hot-water, under the identical operating mode, compares four kinds of circulation patterns noted earlier, this circulation Energy Efficiency Ratio (COP) maximum, and cold and hot two-way utilization equals the domestic hot-water and freely produces.
Outdoor environment temperature is lower than 0 when spending, use the air injection enthalpy-increasing technology, electric expansion valve 22 is opened, air injection enthalpy-increasing is connected along separate routes, subcooler 8 beginning heat exchange work: such as Fig. 7,8, shown in 9, central air-conditioning and hot water integrated machine increase respectively the heating of enthalpy list water, increase enthalpy list air-conditioning heating, when increasing the heating of enthalpy water and air-conditioning heating, refrigerant fluid main body circulating path and prior figures 2,3,4 described outdoor environment temperatures are higher than the single water heating mode under the 0 degree condition, single air-conditioning heating pattern, the water heating is identical with the air-conditioning heating pattern, different is, the subcooler 8 that is between reservoir 7 and the filter 9 is started working, electric expansion valve 22 is opened, after some process air injection enthalpy-increasing electric expansion valve 22 step-down along separate routes of 7 li high pressure liquid refrigerants out of reservoir, form the low-temp low-pressure liquid refrigerant, high pressure liquid refrigerant with the 3rd heat exchanger tube 801 of flowing through when flowing through the 4th heat exchanger tube 802 of subcooler 8 carries out heat exchange, the attitude of calming the anger in formation cold-producing medium, then directly enter and carry out second-compressed in the compressor 4, this heat exchange has also been carried out super cooling effect before the throttling to the refrigerant fluid of the 3rd heat exchanger tube 801 of flowing through.
As shown in figure 10, the built-in stainless steel press-bearing water tank of the utility model central air-conditioning and hot water integrated machine, so that on-the-spot fitting operation is convenient, shell adopts the aluminium alloy flap to combine, so that shell possesses high strong corrosion resistance, Never-rusty.
The utility model central air-conditioning and hot water integrated machine use safety and environmental protection and the R134A that do not damage the ozone layer as cold-producing medium, operating pressure is low, condensation temperature is high, the hot water that can easily produce 65 ℃ is used for daily life.
The utility model central air-conditioning and hot water integrated machine are by arranging First Heat Exchanger, the second heat exchanger and the 3rd heat exchanger, carry out the different contrary Carnot cycle loop of check valve switching formation and realize the several functions such as air conditioner refrigerating heating, hot water supply, by using subcooler to form air injection enthalpy-increasing along separate routes, increase the compressor air-discharging amount, guaranteed the warm hot water demand of confession in severe cold area winter.
The above is described embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the present utility model.

Claims (8)

1. a central air-conditioning and hot water integrated machine, it is characterized in that, comprising: storage tank (12), compressor (4), First Heat Exchanger (1), cross valve (6), the second heat exchanger (2), reservoir (7), subcooler (8), expansion valve (11), the 3rd heat exchanger (3), gas-liquid separator (5), be arranged on the first check valve (18) between described the second heat exchanger (2) and the described reservoir (7), be arranged on the second check valve (19) between described expansion valve (11) and the 3rd heat exchanger (3), be arranged on the 3rd check valve (20) between described the 3rd heat exchanger (3) and the reservoir (7), and be arranged on the 4th check valve (21) between described expansion valve (11) and the second heat exchanger (2);
Described storage tank (12) connects and composes the hot water supply loop by the water side heat exchanger tube (102) of heat exchanging water pipe and described First Heat Exchanger (1), and is provided with hot water water pump (13) described heat exchanging water pipe;
Second heat exchanger tube (202) of described the second heat exchanger (2) links to each other with air conditioning terminal heat exchanger (17) and consists of air conditioner refrigerating and heat closed circuit, and described air conditioner refrigerating heats closed circuit and is provided with water pump of air conditioner (14);
The cold-producing medium of described compressor (4) has first-class path and second path, described first-class path is: described the first check valve (18) and the second check valve (19) are opened, the 3rd check valve (20) and the 4th check valve (21) are closed, flow through the successively refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1) of the cold-producing medium of described compressor (4) compression, described cross valve (6), first heat exchanger tube (201) of described the second heat exchanger (2), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), get back to described cross valve (6) behind described the 3rd heat exchanger (3) and then flow to described gas-liquid separator (5), flow back at last compressor (4);
Described second path is: described the first check valve (18) and the second check valve (19) are closed, the 3rd check valve (20) and the 4th check valve (21) are opened, flow through the successively refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1) of the cold-producing medium of described compressor (4) compression, described cross valve (6), described the 3rd heat exchanger (3), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), get back to described cross valve (6) behind first heat exchanger tube (201) of described the second heat exchanger (2) and then flow to described gas-liquid separator (5), flow back at last compressor (4);
Be provided with the air injection enthalpy-increasing that is connected with the 4th heat exchanger tube (802) of described subcooler (8) between the 3rd heat exchanger tube (801) of described reservoir (7) and described subcooler (8) along separate routes, described air injection enthalpy-increasing is provided with electric expansion valve (22) along separate routes, and described the 4th heat exchanger tube (802) is connected to described compressor (4).
2. central air-conditioning according to claim 1 and hot water integrated machine is characterized in that, described central air-conditioning and hot water integrated machine comprise and increase enthalpy list water heating mode, increase enthalpy list air-conditioning heating pattern and increase enthalpy water heating and the air-conditioning heating pattern;
Increase in the enthalpy list water heating mode described, described electric expansion valve (22) is opened, connect described air injection enthalpy-increasing along separate routes, and, described hot water water pump (13) is opened, described water pump of air conditioner (14) is closed, refrigerant fluid is by the described first-class path described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), first heat exchanger tube (201) of described the second heat exchanger (2), described the first check valve (18), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the second check valve (19), get back to described cross valve (6) behind described the 3rd heat exchanger (3) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4), and, from the inner refrigerant fluid out of described reservoir (7) some through flow through the 4th heat exchanger tube (802) of described subcooler (8) of described electric expansion valve (22), then directly enter in the compressor (4);
Increase in the enthalpy list air-conditioning heating pattern described, described electric expansion valve (22) is opened, connect described air injection enthalpy-increasing along separate routes, and, described hot water water pump (13) cuts out, described water pump of air conditioner (14) is opened, refrigerant fluid is by described first-class path, the described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), first heat exchanger tube (201) of described the second heat exchanger (2), described the first check valve (18), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the second check valve (19), get back to described cross valve (6) behind described the 3rd heat exchanger (3) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4), and, from the inner refrigerant fluid out of described reservoir (7) some through flow through the 4th heat exchanger tube (802) of described subcooler (8) of described electric expansion valve (22), then directly enter in the compressor (4);
Increase in the heating of enthalpy water and the air-conditioning heating pattern described, described electric expansion valve (22) is opened, connect described air injection enthalpy-increasing along separate routes, and, described hot water water pump (13) and described water pump of air conditioner (14) are opened, refrigerant fluid is by described first-class path, the described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), first heat exchanger tube (201) of described the second heat exchanger (2), described the first check valve (18), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the second check valve (19), get back to described cross valve (6) behind described the 3rd heat exchanger (3) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4), and, from the inner refrigerant fluid out of described reservoir (7) some through flow through the 4th heat exchanger tube (802) of described subcooler (8) of described electric expansion valve (22), then directly enter in the compressor (4).
3. central air-conditioning according to claim 1 and 2 and hot water integrated machine, it is characterized in that described central air-conditioning and hot water integrated machine comprise single water heating mode, single air-conditioning heating pattern, water heating and air-conditioning heating pattern, single air conditioner refrigerating pattern and water heating and air conditioner refrigerating pattern;
In described single water heating mode, described electric expansion valve (22) is closed, described hot water water pump (13) is opened, described water pump of air conditioner (14) is closed, refrigerant fluid is by described first-class path, the described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), first heat exchanger tube (201) of described the second heat exchanger (2), described the first check valve (18), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the second check valve (19), get back to described cross valve (6) behind described the 3rd heat exchanger (3) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4);
In described single air-conditioning heating pattern, described electric expansion valve (22) is closed, described hot water water pump (13) cuts out, described water pump of air conditioner (14) is opened, refrigerant fluid is by the described first-class path described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), first heat exchanger tube (201) of described the second heat exchanger (2), described the first check valve (18), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the second check valve (19), get back to described cross valve (6) behind described the 3rd heat exchanger (3) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4);
In described water heating and air-conditioning heating pattern, described electric expansion valve (22) is closed, described hot water water pump (13) and described water pump of air conditioner (14) are opened, refrigerant fluid is by described first-class path, the described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), first heat exchanger tube (201) of described the second heat exchanger (2), described the first check valve (18), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the second check valve (19), get back to described cross valve (6) behind described the 3rd heat exchanger (3) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4);
In described single air conditioner refrigerating pattern, described electric expansion valve (22) is closed, described hot water water pump (13) cuts out, described water pump of air conditioner (14) is opened, refrigerant fluid is by described second path, the described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), described the 3rd heat exchanger (3), the described reservoir of described the 3rd check valve (20) (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the 4th check valve (21), get back to described cross valve (6) behind first heat exchanger tube (201) of described the second heat exchanger (2) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4);
In described water heating and air conditioner refrigerating pattern, described electric expansion valve (22) is closed, described hot water water pump (13) and described water pump of air conditioner (14) are opened, described the 3rd heat exchanger (3) stops heat exchange work, refrigerant fluid is by described second path, the described compressor (4) of flowing through successively, the refrigerant side heat exchanger tube (101) of described First Heat Exchanger (1), described cross valve (6), described the 3rd check valve (20), described reservoir (7), the 3rd heat exchanger tube (801) of described subcooler (8), described expansion valve (11), described the 4th check valve (21), get back to described cross valve (6) behind first heat exchanger tube (201) of described the second heat exchanger (2) and then flow to described gas-liquid separator (5), flow back at last in the compressor (4).
4. central air-conditioning according to claim 3 and hot water integrated machine, it is characterized in that described central air-conditioning and hot water integrated machine also comprise filter (9) and the liquid-sighting glass (10) that is connected in turn between described the 3rd heat exchanger tube (801) and the expansion valve (11).
5. central air-conditioning according to claim 4 and hot water integrated machine is characterized in that, described central air-conditioning and hot water integrated machine also comprise shell; Described storage tank (12), compressor (4), First Heat Exchanger (1), cross valve (6), the second heat exchanger (2), reservoir (7), subcooler (8), filter (9), liquid-sighting glass (10), expansion valve (11), the 3rd heat exchanger (3), gas-liquid separator (5), the first check valve (18), the second check valve (19), the 3rd check valve (20) and the 4th check valve (21) are arranged in the described shell.
6. central air-conditioning according to claim 5 and hot water integrated machine is characterized in that, described shell adopts the aluminium alloy flap to combine, and built-in storage tank (12) is the stainless steel press-bearing water tank.
7. central air-conditioning according to claim 5 and hot water integrated machine is characterized in that, described cold-producing medium is the R134A cold-producing medium.
8. central air-conditioning according to claim 5 and hot water integrated machine is characterized in that, described the 3rd heat exchanger (3) is arranged in the outdoor environment, and are provided with the blower fan of strengthening heat exchange.
CN 201220439393 2012-08-31 2012-08-31 Central air-conditioning and hot water all-in-one machine Active CN202757346U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107420988A (en) * 2014-05-04 2017-12-01 余丽红 A kind of air conditioner with water dispenser
CN107684345A (en) * 2014-05-07 2018-02-13 中山市雅西环保科技有限公司 A kind of water dispenser
CN107850360A (en) * 2015-07-02 2018-03-27 美敦力 The N2O liquefaction systems with supercooling heat exchanger for medical treatment device
CN109682117A (en) * 2018-12-27 2019-04-26 浙江理工大学 A kind of energy-saving cities and towns people place magnetic suspension compressor multi-connected machine and hot-water combined supplying system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107420988A (en) * 2014-05-04 2017-12-01 余丽红 A kind of air conditioner with water dispenser
CN107684345A (en) * 2014-05-07 2018-02-13 中山市雅西环保科技有限公司 A kind of water dispenser
CN107850360A (en) * 2015-07-02 2018-03-27 美敦力 The N2O liquefaction systems with supercooling heat exchanger for medical treatment device
CN107850360B (en) * 2015-07-02 2020-07-14 美敦力 N2O liquefaction system with subcooling heat exchanger for medical devices
CN111735222A (en) * 2015-07-02 2020-10-02 美敦力快凯欣有限合伙企业 N with subcooling heat exchanger for medical devices2O liquefaction system
CN111735222B (en) * 2015-07-02 2022-04-12 美敦力快凯欣有限合伙企业 N with subcooling heat exchanger for medical devices2O liquefaction system
CN109682117A (en) * 2018-12-27 2019-04-26 浙江理工大学 A kind of energy-saving cities and towns people place magnetic suspension compressor multi-connected machine and hot-water combined supplying system

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Address after: Bunker Sunshine Industrial Zone Nanshan District Xili street Shenzhen city 518000 Guangdong province section Laiwei, industrial workshop

Patentee after: VTech Technology (Shenzhen) Co. Ltd.

Address before: 518000 Guangdong city of Shenzhen province Nanshan District Xili town industrial area 16 building second floors

Patentee before: E-tech Heat Pump (Shenzhen) Co., Ltd.