CN102155820A - Multipurpose air-conditioner hot water system - Google Patents

Abstract

A multifunctional air-conditioning hot water system, including an outdoor unit, an indoor unit, a water fluorine exchange unit, and a water tank, is characterized in that the outdoor unit has a compressor, a four-way valve, an outdoor heat exchanger, an outdoor electronic expansion valve, and the indoor unit has a Indoor heat exchanger, indoor electronic expansion valve, water fluorine exchange unit has a water fluorine heat exchanger, water circulator and water pump, there is a coil in the water tank, the coil is connected to the water circulator and water pump through pipes, and the exhaust port of the compressor is through pipes It is connected with the d-end and c-end of the four-way valve, the outdoor heat exchanger, the outdoor electronic expansion valve, the indoor unit electronic expansion valve, the indoor heat exchanger, the e-end and s-end of the four-way valve, and the air inlet of the compressor. The liquid pipe between the exhaust port of the compressor and the outdoor heat exchanger and the indoor heat exchanger is also connected to a water fluorine heat exchanger through the pipe. When the system recovers cooling heat, heats independently and heats the pump to make hot water, All the high-temperature and high-pressure gas discharged from the compressor enters the water-fluorine heat exchanger for heat exchange, with little energy loss.

Description

Multifunctional air conditioning and hot water system

technical field

The invention relates to a multi-functional air-conditioning and hot water system, in particular to a multi-functional air-conditioning and hot water system which utilizes heat pump technology to cool water or make hot water.

Background technique

In recent years, with the shortage of energy in the world and the maturity of heat pump technology, the heat pump hot water market, which uses heat pump technology to produce hot water, has grown rapidly in various countries due to its high efficiency, energy saving, environmental protection, safety and many other advantages.

The existing devices that utilize heat pump technology to produce hot water mainly include:

1. Heat pump water heater, using heat pump technology to realize the function of making hot water;

2. The air-conditioning water heater can not only realize the air-conditioning function but also realize the function of making hot water by using heat pump technology;

3. The multifunctional air-conditioning and hot water device can not only realize the function of air conditioning, the function of making hot water by using heat pump technology, but also realize the function of floor heating.

Wherein the multifunctional air-conditioning and hot water device is shown in Figure 1, including an outdoor unit 1, an indoor unit 4, a water fluorine exchange unit 2, a water tank 5, and a floor heater 6. The outdoor unit has a compressor 11, a four-way valve 12, and an outdoor exchange unit. Heater 13, outdoor electronic expansion valve 14, the indoor unit 4 has an indoor heat exchanger 42, the water-fluorine exchange unit 2 has a water-fluorine heat exchanger 21, and a water pump 22, and the water tank 5 has a coil 51. The coil pipe 51 is connected to the water pipe in the water fluorine heat exchanger 21 through pipelines, the refrigerant pipe of the water fluorine exchange unit 2 is connected to the e end of the four-way valve 12 and the outdoor heat exchanger 14, the indoor unit 4, the floor heating 6 and the The coiled pipes 51 are connected in parallel. The device can use heat pump technology to produce cold water or hot water through the water fluorine exchange unit 2, and circulate in the indoor unit 4 to realize the cooling and heating function, and can also circulate the prepared hot water in the floor heating 6 coil to realize the floor heating function. The produced hot water is stored in the water tank 5 for domestic hot water.

There are following problems in existing multifunctional air-conditioning hot water device:

1. During the cooling process of the air conditioner, the high-temperature and high-pressure gas discharged from the compressor 11 is converted into low-temperature and low-pressure gas by the outdoor heat exchanger 13 and the outdoor electronic expansion valve 14. Heat exchange, the cold water produced absorbs the heat in the room when flowing through the indoor heat exchanger 42 . Since the absorbed heat is finally released to the outside by the outdoor heat exchanger 13, it is impossible to recover waste heat while air-conditioning and cooling, resulting in energy loss;

2. When making domestic hot water or running floor heating, the air conditioner cannot be cooled or heated at the same time.

3. The air-conditioning and hot water device can only utilize electric energy, the energy source is single, and the operating efficiency is low.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a multifunctional air-conditioning and hot water system to improve energy utilization efficiency.

Technical solution 1: A multifunctional air-conditioning and hot water system, including an outdoor unit, an indoor unit, a water fluorine exchange unit, a water tank, an outdoor unit with a compressor, a four-way valve, an outdoor heat exchanger, an outdoor electronic expansion valve, and an indoor unit with a The indoor heat exchanger, the indoor electronic expansion valve, and the water fluorine exchange unit have a water fluorine heat exchanger, a water circulator and a water pump. There is a coil in the water tank, and the coil is connected to the water circulator and the water pump through a pipeline.

The exhaust port of the compressor is sequentially connected to the d-end and c-end of the four-way valve, the outdoor heat exchanger, the outdoor electronic expansion valve, the indoor unit electronic expansion valve, and the indoor heat exchanger through pipelines. Heater, the e end and s end of the four-way valve are connected to the air inlet of the compressor, and the exhaust port of the compressor is connected to the outlet between the outdoor heat exchanger and the indoor heat exchanger. The water-fluorine heat exchanger is also connected through a pipeline between the liquid pipes,

It can be seen from the above that in technical solution 1, when cooling heat is recovered, the outdoor electronic expansion valve is closed, the indoor electronic expansion valve is turned on, and the high-temperature and high-pressure gas discharged from the compressor passes through the water-fluorine heat exchanger, and the indoor electronic expansion valve, the indoor heat exchanger, return to the compressor,

When heating alone, the outdoor electronic expansion valve is turned on, and the indoor electronic expansion valve is turned on. The high-temperature and high-pressure gas discharged from the compressor passes through the indoor heat exchanger, the indoor electronic expansion valve, and the outdoor electronic expansion valve. the outdoor heat exchanger, returning to the compressor,

When the heat pump produces hot water, the indoor electronic expansion valve is closed, and the high-temperature and high-pressure gas discharged from the compressor returns to the compressor through the water-fluorine heat exchanger, the outdoor electronic expansion valve, and the outdoor heat exchanger. .

When the multifunctional air-conditioning hot water system recovers cooling heat, when heating alone, and when the heat pump produces hot water, all the high-temperature and high-pressure gas discharged from the compressor enters the water-fluorine heat exchanger for heat exchange, and the energy loss is less. It achieves a higher production efficiency of hot water, and also realizes the production of domestic hot water at the same time as air-conditioning refrigeration and air-conditioning heating.

Technical solution 2: The multifunctional air-conditioning and hot water system according to claim 1, further comprising a solar panel, the coil in the water tank has two groups, and one group is connected to the water-fluorine heat exchanger through a three-way valve. The water pipes are connected, and the other set is connected with the solar panels.

It can be seen from the above that in technical solution 2, since a solar panel is also provided, and the solar panel is connected to another group of coils in the water tank, solar energy can also be used to heat the water in the water tank to save energy.

Technical solution 3: The multifunctional air-conditioning and hot water system according to claim 1 or 2, further comprising a geothermal device, the coil in the geothermal device is connected to the water pipe of the water-fluorine heat exchanger through a solenoid valve.

As can be seen from the above, in technical solution 3, since a geothermal device is also provided, the coil pipe in the geothermal device is connected with the water pipe of the water-fluorine heat exchanger through a solenoid valve, so the circulation generated by the water-fluorine heat exchanger can be utilized. Hot water heats the ground.

Technical solution 4: The multifunctional air-conditioning and hot water system according to claim 3, further comprising a clothes drying device, the coil pipe in the clothes drying device is connected to the water pipe of the water-fluorine heat exchanger through a solenoid valve. As can be seen from the above, in technical scheme 4, since a clothes drying device is also provided, the coil pipe in the clothes drying device is connected with the water pipe of the described water-fluorine heat exchanger through a solenoid valve, so it can utilize The circulating hot water is used by the clothes drying device to achieve the purpose of drying clothes.

Description of drawings

Fig. 1 is the schematic diagram of the air conditioning hot water system in the prior art;

Fig. 2 is a schematic diagram of the air conditioning and hot water system provided by the present invention.

Description of reference symbols

1-outdoor unit; 11-compressor; 12-four-way valve; 13-outdoor heat exchanger; 14-outdoor electronic expansion valve; 2-water fluorine exchange unit; 21-water fluorine heat exchanger; 22-water pump; 31 -Three-way valve (on the water tank pipeline); 32-three-way valve (on the clothes dryer pipeline); 4-indoor unit; 41-indoor electronic expansion valve; 42-indoor heat exchanger; 5-water tank; 6- Floor heating device; 7-clothes drying device; 8-solar panel; 10-gas pipe; 20-liquid pipe; 30-heat recovery pipe.

Detailed ways

The air-conditioning and hot water system provided by the present invention will be specifically described below in conjunction with the figures.

Fig. 2 is the schematic diagram of the multifunctional air-conditioning and hot water system provided by the present invention. As can be seen from Fig. 2, the multifunctional air-conditioning and hot water system includes an outdoor unit 1, an indoor unit 4, a water fluorine exchange unit 2, and a three-way valve ( 31,32), water tank 5, floor heating device 6, clothes drying device 7 and solar panel 8. The outdoor unit 1 has a compressor 11, a four-way valve 12, an outdoor heat exchanger 13, and an outdoor electronic expansion valve 14; the indoor unit 4 has two indoor heat exchangers 42 and two indoor electronic expansion valves 41; the water fluorine exchange unit 2 It has a water-fluorine heat exchanger 21 and a water pump 22; the water tank 5 has two sets of coil pipes 51, 52.

The exhaust port of the compressor 11 in the outdoor unit 1 is connected to the d-end of the four-way valve 12 through a pipe, and the c-end of the four-way valve is connected to the outdoor heat exchanger 13 for heat exchange outdoors. The other end of the device 13 is also connected to an outdoor electronic expansion valve 14, the outdoor electronic expansion valve 14 is connected to the indoor electronic expansion valve 41, the indoor unit electronic expansion valve 41 is connected to the indoor heat exchanger 42, the The indoor electronic expansion valve 41 is connected to the e-end of the four-way valve 12 , and the s-end of the four-way valve is connected to the air inlet of the compressor 11 . The refrigerant pipe of the water-fluorine heat exchanger 21 is connected between the exhaust port of the compressor 11 and the liquid pipe 20 between the outdoor electronic expansion valve 14 and the indoor unit electronic expansion valve 41 .

The coil pipe 51 in the water tank 5 is connected to the solar panel 8 through pipelines, and the coil pipe 52 is connected to the water pipe of the water-fluorine heat exchanger 21 through the three-way valve 31 . The coil pipe in the clothes drying device 7 is connected with the water pipe of the water fluorine heat exchanger 21 through the electromagnetic valve 32 , and the coil pipe in the two groups of geothermal devices 6 is connected with the water pipe of the water fluorine heat exchanger 21 through the electromagnetic valve 31 .

In the indoor unit 4, two sets of indoor heat exchangers 42 and indoor electronic expansion valves 41 are connected in parallel. By switching the four-way valve 12, the multifunctional air-conditioning and hot-water system can complete functions such as air-conditioning cooling, air-conditioning heating, heat pump hot water heating, air-conditioning cooling heat recovery, air-conditioning heating and hot water production and other functions. Each mode is explained below.

1. Air conditioner cooling mode

At this time, the d-side and c-side of the four-way valve are connected, and the e-side and s-side are connected. The high-temperature and high-pressure gas generated by the compressor 11 enters the outdoor heat exchanger through the d-side and c-side of the four-way valve 12 13. After the outdoor heat exchanger 13 is condensed into a high-pressure and medium-temperature liquid, it enters the indoor unit 4, passes through the indoor electronic expansion valve 41 to become a low-temperature and low-pressure liquid, and then enters the indoor heat exchanger 42. In the indoor heat exchanger 42 Evaporated into a low-temperature and low-pressure gas, and finally returns to the compressor 11 through the e-end and s-end of the four-way valve 12, completing a complete refrigeration cycle. Among them, the low-temperature and low-pressure liquid absorbs the heat in the room during the evaporation process in the indoor heat exchanger, so as to achieve the effect of air conditioning and refrigeration.

2. Air conditioning refrigeration heat recovery mode

At this time, the d-end and c-end of the four-way valve 12 are connected, the e-end and s-end are connected, the outdoor electronic expansion valve 14 is closed, the indoor electronic expansion valve 41 is connected, and the high-temperature and high-pressure gas discharged by the compressor 11 passes through the The heat recovery pipe 30 enters the water-fluorine heat exchanger 21, passes through the water-fluorine heat exchanger 21, is condensed into a high-temperature and medium-pressure liquid, and then enters the indoor unit 4, and is throttled by the indoor electronic expansion valve 41 to become a low-temperature and low-pressure liquid. The liquid then enters the indoor heat exchanger 42, and the low-temperature and low-pressure liquid is evaporated into a low-temperature and low-pressure gas in the indoor heat exchanger 42, and then flows through the e-end and s-end of the four-way valve 12 and returns to the compressor 11 , to complete a complete refrigeration heat recovery cycle. During this cycle, the total heat absorbed by the indoor unit 4 during the cooling process is released into the water through the water-fluorine heat exchanger 21 to produce hot water, which avoids the discharge of heat from the outdoor heat exchanger 13, thereby realizing heat dissipation while cooling. for recycling purposes.

3. Air conditioning heating mode

At this time, the d-end and e-end of the four-way valve 12 are connected, the c-side and s-side are connected, the outdoor electronic expansion valve 14 is connected, and the indoor electronic expansion valve 41 is connected, and the high-temperature and high-pressure gas discharged by the compressor 11 It enters the indoor heat exchanger 42 through the d-end and e-end of the four-way valve 12. After being condensed in the indoor heat exchanger 42 to become a high-pressure medium-temperature liquid, it enters the outdoor unit through the indoor electronic expansion valve 41 and enters the outdoor unit through the outdoor electronic expansion valve 14. After being throttled into a low-temperature and low-pressure liquid, it enters the outdoor heat exchanger 13, is evaporated into a low-temperature and low-pressure gas in the outdoor heat exchanger 13, and then returns through the c-end and s-end of the four-way valve 12 The compressor 11 thus completes a complete heating cycle. The high-temperature and high-pressure gas releases heat during condensation in the indoor heat exchanger 42, thereby achieving the effect of air conditioning and heating.

4. Heat pump hot water production mode

At this time, the s end and c end of the four-way valve 12 are connected, and the indoor electronic expansion valve 41 is closed. The high-temperature and high-pressure gas discharged from the compressor 11 enters the water-fluorine heat exchanger 21 through the heat recovery pipe 30. The heat released in the fluorine heat exchanger 21 is condensed and then enters the outdoor unit 1. The high-pressure and medium-temperature liquid passes through the outdoor electronic expansion valve 14 to become a low-temperature and low-pressure liquid, and then enters the outdoor heat exchanger 13 to exchange heat outdoors. Evaporated into a low-temperature and low-pressure gas in the device 13, and finally returns to the compressor 11 through the s-side and c-side of the four-way valve 12 to complete a complete cycle of heat pump production of hot water. The high-temperature and high-pressure gas releases heat during the condensation process in the water-fluorine heat exchanger 21, thereby achieving the effect of producing hot water.

5. Air conditioning heating and hot water mode

At this time, the d-end and e-end of the four-way valve 12 are connected, and the c-end and s-end are connected. A part of the high-temperature and high-pressure gas generated by the compressor 11 enters the indoor exchange through the d-end and e-end of the four-way valve 12. Heater 42, the heat released in the indoor heat exchanger 42 is condensed into a high-pressure medium-temperature liquid and then enters the outdoor side, and the other part enters the water through the heat recovery pipe 30. The fluorine heat exchanger 21 exchanges heat with water and then communicates with the indoor unit. The refrigerants meet together and pass through the outdoor electronic expansion valve 14 to form a low-temperature and low-pressure liquid, enter the outdoor heat exchanger 13, evaporate into a low-temperature and low-pressure gas in the outdoor heat exchanger 13, and finally return to the The compressor 11 completes a complete heating and hot water heating cycle. Among them, the high-temperature and high-pressure gas is condensed in the indoor heat exchanger 42, and heat is released in the process, so as to achieve the effect of air conditioning and heating. The heat exchanged in the water-fluorine heat exchanger 21 is used to heat water to achieve heating. purpose of water.

As mentioned above, when the air-conditioning and hot water system operates in the five modes mentioned above, all the high-temperature and high-pressure gas discharged from the compressor 11 enters the water-fluorine heat exchanger 21 for heat exchange, with less energy loss and higher hot water. production efficiency.

Because there are two sets of coil pipes 51 and 52 in the water tank 5, the coil pipes 51 are connected to the two ends of the water pipes of the water fluorine heat exchanger 21 through the three-way valve 31, and the coil pipes 52 are connected with the solar panel 8, therefore, the solar energy also affects the water tank 5. The water in it plays the role of heating, reducing energy consumption.

And when the outdoor unit 1 is working, the flow direction of hot water can be controlled by controlling the opening and closing of the three-way valves 31, 32 and electromagnetic valves 33, 34. When the three-way valve 31 is opened, the hot water generated by the fluorine heat exchanger 21 flows to the coil pipe 52 in the water tank 5 to heat the water in the water tank 5 . When the three-way valve 32 is opened, the hot water generated by the fluorine heat exchanger 21 flows to the coil pipe in the clothes drying device 7 to heat the clothes drying device 7 . When the electromagnetic valves 33 and 34 are opened, the hot water generated by the fluorine heat exchanger 21 flows to the coil pipe in the geothermal device 6 to heat the ground.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (4)

1. A multifunctional air-conditioning hot water system, comprising an outdoor unit, an indoor unit, a water fluorine exchange unit, and a water tank, characterized in that the outdoor unit has a compressor, a four-way valve, an outdoor heat exchanger, an outdoor electronic expansion valve, and an indoor The unit has an indoor heat exchanger, an indoor electronic expansion valve, and the water fluorine exchange unit has a water fluorine heat exchanger and a water pump. There is a coil in the water tank, and the coil is connected to the water pipe of the water fluorine heat exchanger through a pipeline. The water pump is arranged in the water pipe of the water-fluorine heat exchanger, The exhaust port of the compressor is sequentially connected to the d-end and c-end of the four-way valve, the outdoor heat exchanger, the outdoor electronic expansion valve, the indoor unit electronic expansion valve, and the indoor heat exchanger through pipelines. Heater, the e-end and s-end of the four-way valve are connected to the air inlet of the compressor, and the exhaust port of the compressor is connected to the outlet between the outdoor heat exchanger and the indoor heat exchanger The water-fluorine heat exchanger is also connected through pipelines between the liquid pipes. 2. The multifunctional air-conditioning and hot water system according to claim 1, further comprising, a solar panel, the coil pipe in the water tank has two groups, and one group is connected with the water pipe of the water-fluorine heat exchanger through a three-way valve , and the other group is connected to the solar panel. 3. The multifunctional air-conditioning and hot water system according to claim 1 or 2, further comprising a geothermal device, the coil pipe in the geothermal device is connected to the water pipe of the water-fluorine heat exchanger through a solenoid valve. 4. The multifunctional air-conditioning and hot water system according to claim 3, further comprising a clothes drying device, the coil pipe in the clothes drying device is connected to the water pipe of the water-fluorine heat exchanger through a solenoid valve. the

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