Double-source heat pump air conditioning device

Abstract

The utility model provides a double-source heat pump air conditioning device, which belongs to the technical field of heat pump air conditioners and comprises a water source heat pump, the water source heat pump is communicated with a first electric three-way valve, the first electric three-way valve is communicated with an air source heat pump and a compressor, and the compressor is communicated with a second electric three-way valve. The second electric three-way valve is communicated with the condenser and the water tank, the condenser and the water tank are both communicated with the expansion valve, the expansion valve is communicated with the third electric three-way valve, the third electric three-way valve is communicated with the air source heat pump and the water source heat pump, and the water tank is communicated with the water source heat pump through a first water pipe and a second water pipe. And an electric circulating water pump is mounted on the first water pipe. The double-source heat pump air conditioner solves the problems that when an existing double-source heat pump air conditioner is used in a cold region, an air source heat pump is prone to frosting during working, working efficiency is low, limitation is large, and the working states of a water source heat pump and the air source heat pump cannot be switched in time, so that the energy utilization rate is low, and loss is large.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat pump air conditioners, and in particular relates to a dual-source heat pump air conditioner device. Background Art

[0002] Today's air conditioners are divided into household and commercial types. The operating modes of household and commercial air conditioners are different. In addition, most air conditioners used in large shopping malls use air source heat pump air conditioners, which have a single operating mode and different energy consumption in different environments. Therefore, a water source and air source dual-source heat pump air conditioner device is now introduced.

[0003] The existing CN206398895U discloses a composite heating and air-conditioning system combining an air source heat pump and a water source heat pump, comprising an air source heat pump unit, a water source heat pump unit and a user-side heat-using device, characterized in that it also comprises a fire water tank, an air source heat pump circulating pump unit, a water source heat pump circulating pump unit and a user-side circulating pump unit, wherein a water supply pipe connected to an external tap water device is arranged on the fire water tank, the air source heat pump circulating pump unit comprises a plurality of parallel air source heat pump circulating pumps, the water source heat pump circulating pump unit comprises a plurality of parallel water source heat pump circulating pumps, and the user-side circulating pump unit comprises a plurality of parallel user-side circulating pumps; the fire water tank, the air source heat pump unit, the air source heat pump circulating pump The fire water tank is connected in sequence with the fire water tank through pipelines to form a first circulating water pipeline; the fire water tank, the water source heat pump circulating pump, the water source heat pump unit and the user-side heat equipment are connected in sequence through pipelines, and the user-side heat equipment, the user-side circulating pump, the water source heat pump unit and the user-side heat equipment are connected in sequence through pipelines to form a second circulating water pipeline; the pipeline at the inlet end of each of the air source heat pump circulating pumps, the pipeline at the inlet end of each of the water source heat pump circulating pumps, the pipeline at the inlet end of the water source heat pump unit and the pipeline at the inlet end of each of the user-side circulating pumps are all connected and provided with a Y-shaped filter, and a butterfly valve is provided on the pipeline at the inlet end of each of the Y-shaped filters. When the dual-source heat pump air conditioner is used in cold areas with large temperature difference between day and night and high air humidity, the air source heat pump is prone to frost when working at night and has low working efficiency and high energy consumption, which makes the air conditioner prone to damage and has great limitations. At the same time, the working status of the water source heat pump and the air source heat pump cannot be switched in time, resulting in low energy utilization and high loss. Summary of the invention

[0004] The utility model provides a dual-source heat pump air-conditioning device, which aims to solve the problem that in the existing dual-source heat pump air-conditioning in cold areas, when the temperature difference between day and night is large and the air humidity is high, the air source heat pump is prone to frost when working at night and has low working efficiency and high energy consumption, which causes the air conditioner to be easily damaged and has great limitations, and at the same time, the working states of the water source heat pump and the air source heat pump cannot be switched in time, resulting in low energy utilization and large loss.

[0005] An embodiment of the utility model provides a dual-source heat pump air-conditioning device, including a water source heat pump, the water source heat pump is connected to a first electric three-way valve, the first electric three-way valve is connected to an air source heat pump and a compressor, the compressor is connected to a second electric three-way valve, the second electric three-way valve is connected to a condenser and a water tank, the condenser and the water tank are both connected to the expansion valve, the expansion valve is connected to a third electric three-way valve, the third electric three-way valve is connected to the air source heat pump and the water source heat pump, the water tank is connected to the water source heat pump through a first water pipe and a second water pipe, an electric circulating water pump is installed on the first water pipe, and the water tank is also connected to a solar collector.

[0006] Furthermore, all the connecting pipes except the first water pipe and the second water pipe are heat transfer pipes.

[0007] By adopting the above technical solution, the first water pipe and the second water pipe can well transport water to the water source heat pump, so that the water source heat pump can perform heat exchange well, and the heat transfer pipe can ensure that the refrigerant can flow well.

[0008] Further, port A of the first electric three-way valve is connected to the output end of the water source heat pump, port B of the first electric three-way valve is connected to the input end of the compressor, and port C of the first electric three-way valve is connected to the output end of the air source heat pump.

[0009] By adopting the above technical solution, the flow direction of the refrigerant can be controlled by controlling the opening of the first electric three-way valve.

[0010] Further, the D port of the second electric three-way valve is connected to the output end of the compressor, the E port of the second electric three-way valve is connected to the input end of the water tank, and the F port of the second electric three-way valve is connected to the input end of the condenser.

[0011] By adopting the above technical solution, the flow direction of the refrigerant can be controlled by controlling the opening of the second electric three-way valve.

[0012] Furthermore, the H port of the third electric three-way valve is connected to the input end of the air source heat pump, the G port of the third electric three-way valve is connected to the output end of the expansion valve, and the I port of the third electric three-way valve is connected to the input end of the water source heat pump.

[0013] By adopting the above technical solution, the flow direction of the refrigerant can be controlled by controlling the opening of the third electric three-way valve.

[0014] Furthermore, the dual-source heat pump air-conditioning device also includes a control module, a monitoring module, a communication module, an alarm module, and a safety protection module, and the control module, monitoring module, communication module, alarm module, and safety protection module are all electrically connected to the first electric three-way valve, the second electric three-way valve, and the third electric three-way valve.

[0015] By adopting the above-mentioned technical solution, the monitoring module can transmit the monitored data to the control module through the communication module, so that the control module can intelligently control the dual-source heat pump air conditioner. When the control module and the alarm module receive abnormal data transmitted by the monitoring module, they can alarm and control the safety protection module to take emergency protection measures for the dual-source heat pump air conditioner.

[0016] Furthermore, the monitoring module includes an indoor temperature sensor, an outdoor temperature sensor, a water tank temperature sensor, a humidity sensor, and a flow sensor to achieve real-time monitoring of various aspects.

[0017] By adopting the above technical solution, the outdoor air humidity and the indoor, outdoor and water tank temperatures can be monitored in real time, and the flow rate of water in the first water pipe and the second water pipe can also be monitored.

[0018] Furthermore, the communication module adopts a Zigbee module, and transmits the data monitored by the monitoring module to the control module through the Zigbee module.

[0019] By adopting the above technical solution, the control module can timely switch the working status of the air source heat pump and the water source heat pump through the data transmitted by the monitoring module, thereby greatly improving the utilization rate of energy efficiency.

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model avoids the damage of the air source heat pump due to frost when used at night in cold areas by setting up the control module, greatly reducing the limitations of the use of dual-source heat pump air conditioners in cold areas, and can switch the working modes of the air source heat pump and the water source heat pump in time, thereby improving the utilization rate of energy and greatly reducing energy loss.

[0022] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of a dual-source heat pump air conditioning device according to an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the module structure of a dual-source heat pump air conditioning device according to an embodiment of the utility model;

[0026] Figure numerals: 1. Water source heat pump; 2. Air source heat pump; 3. First electric three-way valve; 4. Second electric three-way valve; 5. Third electric three-way valve; 6. Compressor; 7. Condenser; 8. Water tank; 9. Expansion valve; 10. Electric circulating water pump; 11. First water pipe; 12. Second water pipe; 100. Control module; 200. Monitoring module; 300. Communication module; 400. Alarm module; 500. Safety protection module. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1The utility model embodiment proposes a dual-source heat pump air-conditioning device, including a water source heat pump 1, the water source heat pump 1 is connected to a first electric three-way valve 3, the first electric three-way valve 3 is connected to an air source heat pump 2 and a compressor 6, further, the A port of the first electric three-way valve 3 is connected to the output end of the water source heat pump 1, the B port of the first electric three-way valve 3 is connected to the input end of the compressor 6, the C port of the first electric three-way valve 3 is connected to the output end of the air source heat pump 2, and the flow direction of the refrigerant can be controlled by controlling the opening of the first electric three-way valve 3, the compressor 6 is connected to a second electric three-way valve 4, the second electric three-way valve 4 is connected to a condenser 7 and a water tank 8, the D port of the second electric three-way valve 4 is connected to the output end of the compressor 6, and the E port of the second electric three-way valve 4 is connected to the output end of the compressor 6. It is connected to the input end of the water tank 8, the F port of the second electric three-way valve 4 is connected to the input end of the condenser 7, and the flow direction of the refrigerant can be controlled by controlling the opening of the second electric three-way valve 4. The condenser 7 and the water tank 8 are both connected to the expansion valve 9, and the expansion valve 9 is connected to the third electric three-way valve 5. The third electric three-way valve 5 is connected to the air source heat pump 2 and the water source heat pump 1, the H port of the third electric three-way valve 5 is connected to the input end of the air source heat pump 2, the G port of the third electric three-way valve 5 is connected to the output end of the expansion valve 9, and the I port of the third electric three-way valve 5 is connected to the input end of the water source heat pump 1. The flow direction of the refrigerant can be controlled by controlling the opening of the third electric three-way valve 5, and the water tank is also externally connected to a water filling pipe to replenish the loss of water in the water tank.

[0029] Reference Figure 1 The water tank 8 is connected to the water source heat pump 1 through a first water pipe 11 and a second water pipe 12. An electric circulating water pump 10 is installed on the first water pipe 11. Except for the first water pipe 11 and the second water pipe 12, the connecting pipes all adopt heat transfer pipes. The first water pipe 11 and the second water pipe 12 can well transport water to the water source heat pump 1, so that the water source heat pump 1 can perform heat exchange well, and the heat transfer pipe can ensure that the refrigerant can flow well.

[0030] refer to Figure 1 and Figure 2The dual-source heat pump air conditioning device also includes a control module 100, a monitoring module 200, a communication module 300, an alarm module 400, and a safety protection module 500. The control module 100, the monitoring module 200, the communication module 300, the alarm module 400, and the safety protection module 500 are all electrically connected to the first electric three-way valve 3, the second electric three-way valve 4, and the third electric three-way valve 5. The monitoring module 200 includes an indoor temperature sensor, an outdoor temperature sensor, a water tank temperature sensor, and a humidity sensor, which can monitor the outdoor air humidity and the indoor, outdoor and water tank temperatures in real time, and can also monitor the flow rate of water in the first water pipe 11 and the second water pipe 12. The communication module 300 adopts Zig bee module, transmits the data monitored by the monitoring module 200 to the control module 100 through the Zigbee module. The control module 100 can timely switch the working status of the air source heat pump 2 and the water source heat pump 1 through the data transmitted by the monitoring module 200, which greatly improves the utilization rate of energy efficiency. Among them, the ambient temperature of the conventional air source heat pump 2 during operation is recommended to be above -5°C. When it is lower than -5°C, the heating effect is poor and cannot fully guarantee the heating effect. In addition, it is easy to frost when the air humidity is greater than 85%. Specifically, at 0°C, the output power of the air source heat pump 2 is about 70% of the rated condition, at -6°C, it is about 62%, and at -10°C, it is about 55%. When the temperature monitored by the outdoor temperature sensor is above -6°C, the control module 100 controls the air source heat pump 2 to work. The control module 100 controls the A port of the first electric three-way valve 3 to be closed, the B port and the C port to be opened, the D port, the E port and the F port of the second electric three-way valve 4 to be opened, the I port of the third electric three-way valve 5 to be closed, the H port and the G port to be opened, so that the refrigerant flows through the heat transfer pipe in the air source heat pump 2, the compressor 6, the condenser 7, the expansion valve 9 and the water tank 8. During the flow of the refrigerant, a part of the high-temperature and high-pressure refrigerant passes through the water tank 8, heats the water inside the water tank 8, increases the water temperature in the water tank 8, and causes the refrigerant to release heat. When the water tank temperature sensor detects that the temperature reaches 65°C, the water tank temperature sensor is turned on by The communication module 300 transmits temperature data to the control module 100, and then the control module 100 controls the E port of the second electric three-way valve 4 to close, and no longer allows the refrigerant to continue to heat the water in the water tank 8, and the water is insulated by the insulation layer of the water tank 8. When the outdoor temperature sensor and the humidity sensor detect that the outdoor temperature drops below -6°C and the air humidity is greater than 85% and lasts for more than half an hour, the working efficiency of the air source heat pump 2 is reduced and it is very easy to frost. The control module 100 controls the air source heat pump 2 to stop working and starts the water source heat pump 1. At the same time, the control module 100 controls the C port of the first electric three-way valve 3 to close and the A port to open, the E port and the F port of the second electric three-way valve 4 to open, the H port of the third electric three-way valve 5 to close, and the I port to open.The refrigerant flows through the heat transfer pipe in the water source heat pump 1, the compressor 6, the condenser 7, the expansion valve 9 and the water tank 8, so that the refrigerant can absorb the heat in the water tank 8 and can also be continuously heated by the refrigerant to ensure that the water temperature in the water tank 8 will not be too low. At the same time, the control module 100 controls the electric circulating water pump 10 to start through the communication module 300, so that the water in the water tank 8 flows to the water source heat pump 1 through the first water pipe 11 and flows back to the water tank 8 through the second water pipe 12. When the window is opened for ventilation or the door is opened, the indoor temperature sensor detects that the indoor temperature drops, and the indoor temperature sensor transmits the monitored temperature data to the control module 100, and then the control module 100 controls the electric circulating water pump 10 through the communication module 300. The water pump 10 speeds up, so that the water flow rate is accelerated, thereby improving the heating effect of the water source heat pump 1. At the same time, the safety protection module 500 will protect the components in the overall device. When an abnormality occurs, the safety protection module 500 will transmit the abnormal situation to the control module 100, so that the control module 100 will cut off the power and water in time. At this time, the alarm module 400 is not affected by the power supply and can continue to alarm. Under the cooperation of the safety protection module 500 and the alarm module 400, the dual-source heat pump air-conditioning device is protected. Through the control of the control module 100, the water source heat pump 1 and the air source heat pump 2 can intelligently switch the working mode, which greatly reduces the limitations and improves the utilization rate of energy.

[0031] The specific implementation method is as follows: during use, when the temperature monitored by the outdoor temperature sensor is above -6°C, the control module 100 controls the air source heat pump 2 to work, and the control module 100 controls the A port of the first electric three-way valve 3 to be closed, and the B port and the C port to be opened, and the D port, the E port and the F port of the second electric three-way valve 4 to be opened, and the I port of the third electric three-way valve 5 to be closed, and the H port and the G port to be opened, so that the refrigerant flows through the heat transfer pipe in the air source heat pump 2, the compressor 6, the condenser 7, the expansion valve 9 and the water tank 8. During the flow of the refrigerant, a part of the high-temperature and high-pressure refrigerant passes through the water tank 8, heats the water inside the water tank 8, so that the water temperature in the water tank 8 is increased, and the refrigerant releases heat. When the water tank temperature sensor monitors that the temperature reaches When the temperature reaches 65°C, the water tank temperature sensor transmits temperature data to the control module 100 through the communication module 300, and then the control module 100 controls the E port of the second electric three-way valve 4 to close, and the refrigerant is no longer allowed to continue to heat the water in the water tank 8, and the water is insulated through the insulation layer of the water tank 8. When the outdoor temperature sensor and the humidity sensor detect that the outdoor temperature drops below -6°C and the air humidity is greater than 85% and lasts for more than half an hour, the working efficiency of the air source heat pump 2 is reduced and it is very easy to frost. The control module 100 controls the air source heat pump 2 to stop working and starts the water source heat pump 1. At the same time, the control module 100 controls the C port of the first electric three-way valve 3 to close, the A port to open, and the E port and the F port of the second electric three-way valve 4 to open. , the H port of the third electric three-way valve 5 is closed, and the I port is opened, so that the refrigerant flows through the heat transfer pipe in the water source heat pump 1, the compressor 6, the condenser 7, the expansion valve 9 and the water tank 8, so that the refrigerant can absorb the heat in the water tank 8 and can also be continuously heated by the refrigerant to ensure that the water temperature in the water tank 8 will not be too low. At the same time, the control module 100 controls the electric circulating water pump 10 to open through the communication module 300, so that the water in the water tank 8 flows to the water source heat pump 1 through the first water pipe 11 and flows back to the water tank 8 through the second water pipe 12. When the window is opened for ventilation or the door is opened, the indoor temperature sensor detects that the indoor temperature drops, and the indoor temperature sensor transmits the monitored temperature data to the control module 100, and then the control module 100 controls the electric circulating water pump 10 through the communication module 300. Block 300 controls the electric circulating water pump 10 to speed up the rotation speed, so that the water flow rate is accelerated, thereby improving the heating effect of the water source heat pump 1. At the same time, the safety protection module 500 will protect the components in the overall device. When an abnormality occurs, the safety protection module 500 will transmit the abnormal situation to the control module 100, so that the control module 100 will cut off the power and water in time. At this time, the alarm module 400 is not affected by the power supply and can continue to alarm. With the cooperation of the safety protection module 500 and the alarm module 400, the dual-source heat pump air-conditioning device is protected. Through the control of the control module 100, the working mode can be switched intelligently between the water source heat pump 1 and the air source heat pump 2, which greatly reduces the limitations and improves the utilization rate of energy.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dual-source heat pump air conditioning device, characterized in that: The invention comprises a water source heat pump (1), wherein the water source heat pump (1) is connected to a first electric three-way valve (3), the first electric three-way valve (3) is connected to an air source heat pump (2) and a compressor (6), the compressor (6) is connected to a second electric three-way valve (4), the second electric three-way valve (4) is connected to a condenser (7) and a water tank (8), the condenser (7) and the water tank (8) are both connected to an expansion valve (9), the expansion valve (9) is connected to a third electric three-way valve (5), the third electric three-way valve (5) is connected to the air source heat pump (2) and the water source heat pump (1), the water tank (8) is connected to the water source heat pump (1) through a first water pipe (11) and a second water pipe (12), and an electric circulating water pump (10) is installed on the first water pipe (11).

2. A dual-source heat pump air conditioning device according to claim 1, characterized in that: All connecting pipes except the first water pipe (11) and the second water pipe (12) are heat transfer pipes.

3. A dual-source heat pump air conditioning device according to claim 1, characterized in that: Port A of the first electric three-way valve (3) is connected to the output end of the water source heat pump (1), port B of the first electric three-way valve (3) is connected to the input end of the compressor (6), and port C of the first electric three-way valve (3) is connected to the output end of the air source heat pump (2).

4. A dual-source heat pump air conditioning device according to claim 1, characterized in that: The D port of the second electric three-way valve (4) is connected to the output end of the compressor (6), the E port of the second electric three-way valve (4) is connected to the input end of the water tank (8), and the F port of the second electric three-way valve (4) is connected to the input end of the condenser (7).

5. A dual-source heat pump air conditioning device according to claim 1, characterized in that: The H port of the third electric three-way valve (5) is connected to the input end of the air source heat pump (2), the G port of the third electric three-way valve (5) is connected to the output end of the expansion valve (9), and the I port of the third electric three-way valve (5) is connected to the input end of the water source heat pump (1).

6. A dual-source heat pump air conditioning device according to claim 1, characterized in that: The dual-source heat pump air conditioning device further comprises a control module (100), a monitoring module (200), a communication module (300), an alarm module (400), and a safety protection module (500); the control module (100), the monitoring module (200), the communication module (300), the alarm module (400), and the safety protection module (500) are all electrically connected to the first electric three-way valve (3), the second electric three-way valve (4), and the third electric three-way valve (5).

7. A dual-source heat pump air conditioning device according to claim 6, characterized in that: The monitoring module (200) comprises an indoor temperature sensor, an outdoor temperature sensor, a water tank temperature sensor and a humidity sensor, so as to realize real-time monitoring of various aspects.

8. A dual-source heat pump air conditioning device according to claim 6, characterized in that: The communication module (300) adopts a Zigbee module, and transmits the data monitored by the monitoring module (200) to the control module (100) via the Zigbee module.

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