Heat pump energy-saving power cabin

Abstract

The utility model relates to a heat pump energy-saving power cabin, which belongs to the technical field of air source heat pumps, and solves the technical problems that the existing air source heat pump uses a water circulation main engine, which has many start-stop times, reduces the service life of the main engine, easily causes system temperature fluctuations when the unit is defrosted, easily causes air blockage in the circulation system, and easily causes the filter screen of the heat pump unit to be blocked or even scrapped. The solution is: the heat pump energy-saving power cabin includes a buffer water tank, which is arranged in series on the main return water pipe of the air source heat pump system; the inner cavity of the buffer water tank includes a water storage chamber, an embedded silent circulating water pump, an expansion tank and a control cabinet; the water storage chamber is sealed and arranged below the inner cavity of the buffer water tank, the embedded silent circulating water pump is placed at the bottom of the water storage chamber, and the water outlet of the embedded silent circulating water pump is placed above the water storage chamber and communicated with the water outlet through a water outlet pipe; the expansion tank is arranged on the upper part of the buffer water tank and communicated with the water storage chamber. Compared with the prior art, the utility model has the advantages of reducing the start-stop times of the main engine, increasing the service life of the main engine, not easily causing system temperature fluctuations when the unit is defrosted, being green and environmentally friendly, and not easily causing air blockage and filter blockage.

Description

Technical Field

[0001] The utility model belongs to the technical field of air source heat pumps, and in particular relates to a heat pump energy-saving power cabin. Background Art

[0002] Air source heat pumps absorb heat from the ambient air or discharge heat into the air, and have the advantages of low cost and wide application occasions. Therefore, the application of air source heat pumps in building cooling and heating has been greatly developed. However, the indoor circulation pipeline of the air source heat pump system completely adopts water circulation, which is prone to some problems: First, due to the small amount of circulating water in its circulation pipeline, when the system is used at low load, the unit will stop working after reaching the set target temperature in a short time; due to the small amount of water and stored energy in the system, in a short time, the water temperature reaches the starting condition of the unit again, and the host starts again. Such frequent start and stop increase the wear of the compressor, reduce the service life of the host, and increase the cost of use; Second, when the air source heat pump is heating, it will absorb heat from the air and discharge cold air. When the ambient temperature is below 0℃ and the ambient humidity is relatively high, the amount of frost on the heat pump host will increase, the heating efficiency of the unit will be reduced, the running time of the unit will be extended, and the power consumption of the unit will increase. When the unit is defrosted after frost, it will absorb part of the system's heat to defrost the fin heat exchanger. If there is less water in the system pipeline and less stored energy, the unit will quickly lower the temperature of the water in the system pipeline, causing the indoor temperature to drop. Third, the air source heat pump system adopts water circulation. Due to various reasons, the system pipeline network is prone to cause air in the system circulating water, which can easily cause air blockage in the circulation system. Fourth, the air source heat pump adopts a water circulation system to transfer energy. The system pipeline network contains impurities. After a long period of circulation, when there is no suitable storage space for impurities in the system, the impurities gradually generated in the system will be under the action of circulating water. The pipe wall and the heat exchange of the heat pump unit in the system will be flushed, causing the heat pump unit and the system filter to be blocked at the least, and the heat exchanger of the heat pump unit will be worn and perforated at the worst, causing damage to the heat pump unit or even scrapping. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, and solve the technical problems that the existing air source heat pump uses a water circulation main unit with many start and stop times, which reduces the service life of the main unit, easily causes system temperature fluctuations when the unit is defrosted, easily causes air blockage in the circulation system, and easily causes the filter of the heat pump unit to be blocked or even scrapped, the utility model provides a heat pump energy-saving power cabin.

[0004] The utility model is implemented through the following technical solutions.

[0005] The utility model provides a heat pump energy-saving power cabin, comprising a buffer water tank, which is arranged in series on a main return water pipe of an air source heat pump system;

[0006] A display screen is provided at the upper right corner of the front wall of the buffer water tank, a water outlet and a water inlet are provided on the right side wall of the buffer water tank in sequence from top to bottom, and a first sewage outlet is provided at the bottom of the left side wall of the buffer water tank;

[0007] The inner cavity of the buffer water tank includes a water storage cavity, an embedded silent circulating water pump, an expansion tank and a control cabinet;

[0008] The water storage chamber is sealed and arranged below the inner chamber of the buffer water tank. The top and bottom of the water storage chamber are both concave spherical surfaces. The top of the water storage chamber is located below the water outlet, and the bottom of the water storage chamber is located below the water inlet; the embedded silent circulating water pump is placed at the bottom of the water storage chamber, and the water outlet of the embedded silent circulating water pump is placed above the water storage chamber and communicated with the water outlet through a water outlet pipe; the expansion tank is arranged on the upper part of the buffer water tank and communicated with the water storage chamber. The top of the water storage chamber is located on the left side of the expansion tank and is provided with a pressure gauge, a safety valve and an exhaust valve. The top of the water storage chamber is located on the right side of the embedded silent circulating water pump and is provided with a water level sensor and a pressure transmitter;

[0009] The control cabinet is arranged on the right side of the expansion tank corresponding to the position of the display screen; the control cabinet is electrically connected to the display screen, the built-in silent circulating water pump, the pressure gauge, the safety valve, the exhaust valve, the water level sensor and the pressure transmitter.

[0010] Furthermore, a first filter and a water inlet sensor are provided at the water inlet, and the water inlet sensor is electrically connected to the control cabinet.

[0011] Furthermore, a second sewage outlet is provided at the bottom of the water storage chamber, and the second sewage outlet is connected to the first sewage outlet through a sewage pipe.

[0012] Furthermore, a second filter is provided at the lower end of the embedded silent circulating water pump.

[0013] Furthermore, a remote flow meter is provided on the water outlet pipe, and the remote flow meter is electrically connected to the control cabinet.

[0014] Furthermore, the control cabinet includes a control unit, a monitoring unit, an alarm unit and a communication unit. The control unit is used to automatically switch modes based on real-time data of the air energy heat pump system; the monitoring unit is used to monitor and record various parameters of the air energy heat pump system in real time; the alarm unit is used to monitor the operating status of the air energy heat pump system in real time, and once an abnormal situation or fault is found, the fault information will be issued through the communication unit to remind; the communication unit is used to transmit and interact the real-time data of the air energy heat pump system.

[0015] The beneficial effects achieved by the utility model are as follows: the utility model uses a buffer water tank, which can store energy and water, reduce the number of start-stop times of the main unit, and increase the service life of the compressor; secondly, after the buffer water tank stores enough water and energy, when the unit needs to be defrosted, the energy stored in the air source heat pump system can assist the unit to quickly complete the defrosting, and the heat consumed mainly comes from the energy stored in the buffer water tank, which reduces the fluctuations in system water temperature and indoor temperature caused by the defrosting of the main unit, and also ensures that the system can continue to supply cooling and heating to the indoor room. The buffer water tank also plays a key role in stabilizing flow. When the water volume in the system is unstable or there is a small lack of water, a certain amount of water stored in the buffer water tank will provide a stable water flow to the embedded silent circulating water pump, so that the circulating pressure of the circulating water system is maintained at a relatively stable level, thereby protecting the cooling and heating machine and other water system components from damage and improving the stability of the hot and cold water system; an embedded silent circulating water pump is used to The water pump is embedded in the water storage chamber, which is easy to install and maintain, achieving more efficient cold and hot water circulation and lower noise operation, while providing a more stable circulating water flow. The circulating water dissipates heat and cools the embedded silent circulating water pump. The heat generated by the embedded silent circulating water pump is directly absorbed by the circulating water, increasing the heating efficiency of the air source heat pump system, reducing energy consumption, and reducing carbon emissions, which is in line with the concept of green environmental protection; an exhaust valve is selected, and the air in the buffer water tank is discharged from the exhaust valve along with the water flow to the top of the water storage chamber to ensure the smooth circulation of water flow in the air source heat pump system pipeline network; the first sewage outlet and the second sewage outlet are selected. After the circulating water enters the buffer water tank, the water flow changes from rapid to slow, and a large amount of impurities will slowly settle to the bottom of the water storage chamber. After passing through the second filter, the water quality of the circulating water entering the pipeline again will be cleaner, making the system pipeline network cleaner and ensuring the smooth water circulation of the system pipeline network. The first sewage outlet and the second sewage outlet are convenient for decontamination and cleaning of the buffer water tank, effectively reducing the possibility of pipeline blockage.

[0016] Compared with the prior art, the utility model has the advantages of reducing the number of host start-stop times, increasing the service life of the host, not easily causing system temperature fluctuations when the unit is defrosted, being green and environmentally friendly, and not easily causing air blockage and filter blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] In the figure: 1. Buffer water tank; 2. Display screen; 3. Water outlet; 4. Water inlet; 5. First sewage outlet; 6. Water storage chamber; 7. Embedded silent circulating water pump; 8. Expansion tank; 9. Control cabinet; 10. Water outlet pipe; 11. Pressure gauge; 12. Safety valve; 13. Exhaust valve; 14. Water level sensor; 15. Pressure transmitter; 16. First filter; 17. Water inlet sensor; 18. Second sewage outlet; 19. Sewage pipe; 20. Second filter; 21. Remote flow meter. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, the heat pump energy-saving power cabin includes a buffer water tank 1, which is arranged in series on the main return water pipe of the air source heat pump system. The setting of the buffer water tank 1 can store energy and water, reduce the start and stop times of the main unit, and increase the service life of the compressor; secondly, after the buffer water tank 1 stores enough water and energy, when the unit needs to be defrosted, the energy stored in the air source heat pump system can assist the unit to quickly complete the defrosting, and the heat consumed mainly comes from the energy stored in the buffer water tank 1, which reduces the fluctuations in the system water temperature and indoor temperature caused by the defrosting of the main unit, and also ensures that the system can continue to supply cooling and heating to the indoor room. The buffer water tank 1 also plays a key role in stabilizing the flow. When the water volume in the system is unstable or there is a small shortage of water, a certain amount of water stored in the buffer water tank 1 will provide a stable water flow to the embedded silent circulating water pump 7, so that the circulating pressure of the circulating water system is maintained at a relatively stable level, thereby protecting the cooling and heating machine and other water system components from damage and improving the stability of the hot and cold water system.

[0021] A display screen 2 is provided at the upper right corner of the front wall of the buffer water tank 1. The display screen 2 can display the operating status, temperature, pressure, liquid level and fault information, which is convenient for the staff to operate, maintain and manage. The right side wall of the buffer water tank 1 is provided with a water outlet 3 and a water inlet 4 from top to bottom. The circulating water enters from the water inlet 4 and goes out from the water outlet 3. A first filter 16 and a water inlet sensor 17 are provided at the water inlet 4. The water inlet sensor 17 is electrically connected to the control cabinet 9. The first filter 16 can filter the circulating water for the first time to make the circulating water clean. The water inlet sensor 17 can detect the water intake of the circulating water in real time. A first sewage outlet 5 is provided at the bottom of the left side wall of the buffer water tank 1. The first sewage outlet 5 can regularly discharge impurities in the buffer water tank 1.

[0022] The inner cavity of the buffer water tank 1 includes a water storage cavity 6, an embedded silent circulating water pump 7, an expansion tank 8 and a control cabinet 9.

[0023] The water storage chamber 6 is sealed and arranged below the inner cavity of the buffer water tank 1. The top and bottom of the water storage chamber 6 are both concave spherical surfaces. The top of the water storage chamber 6 is located below the water outlet 3, and the bottom of the water storage chamber 6 is located below the water inlet 4. The water storage chamber 6 is mainly used to store water. A second sewage outlet 18 is provided at the bottom of the water storage chamber 6. The second sewage outlet 18 is connected to the first sewage outlet 5 through a sewage pipe 19. After the circulating water enters the buffer water tank 1, the water flow changes from rapid to slow, and a large amount of impurities will slowly settle to the bottom of the water storage chamber 6. The first sewage outlet 5 and the second sewage outlet 18 are arranged to facilitate the impurities inside the water storage chamber 6 to finally flow out of the buffer water tank 1 along the second sewage outlet 18, the sewage pipe 19 and the first sewage outlet 5, effectively reducing the possibility of pipeline blockage. The embedded silent circulating water pump 7 is placed at the bottom of the water storage chamber 6. A second filter 20 is provided at the lower end of the embedded silent circulating water pump 7. The second filter 20 performs secondary filtration on the circulating water entering the water storage chamber 6, so that the circulating water is cleaner. The outlet of the embedded silent circulating water pump 7 is placed above the water storage chamber 6 and is connected to the outlet 3 through the outlet pipe 10. A remote flow meter 21 is provided on the outlet pipe 10. The remote flow meter 21 is electrically connected to the control cabinet 9. The remote flow meter 21 is used to monitor the overall circulating water volume in real time. An embedded silent circulating water pump 7 is selected and embedded in the water storage chamber 6, which is easy to install and maintain, and can achieve more efficient cold and hot water circulation and lower noise operation. At the same time, it provides a more stable circulating water flow. The circulating water dissipates heat and cools the embedded silent circulating water pump 7. The heat generated by the embedded silent circulating water pump 7 is directly absorbed by the circulating water, which increases the heating efficiency of the air source heat pump system, reduces energy consumption, and reduces carbon emissions, which is in line with the concept of green environmental protection. The expansion tank 8 is arranged on the upper part of the buffer water tank 1 and is connected to the water storage chamber 6. The bottom end of the expansion tank 8 extends into the water storage chamber 6 at one-half through a pipeline to communicate with the water storage chamber 6. The expansion tank 8 is used to accommodate the part of the circulating water that increases due to volume expansion during the heating process, and at the same time plays a role in stabilizing the system pressure. The top of the water storage chamber 6 is located on the left side of the expansion tank 8 and is provided with a pressure gauge 11, a safety valve 12 and an exhaust valve 13. The pressure gauge 11 is used to monitor the pressure inside the water storage chamber 6 in real time to ensure that it operates within the normal range and prevent excessive or low pressure from damaging the system. The safety valve 12 automatically opens when the pressure is too high to release excess pressure and protect the system from overpressure damage. The air in the buffer water tank 1 flows to the top of the water storage chamber 6 with the water and is discharged from the exhaust valve 13 to ensure the smooth circulation of water in the air source heat pump system pipeline. The top of the water storage chamber 6 is located on the right side of the embedded silent circulating water pump 7 and is provided with a water level sensor 14 and a pressure transmitter 15. The water level sensor 14 is used to monitor the water level inside the water storage chamber 6 in real time, and the pressure transmitter 15 is used to monitor the pressure inside the water storage chamber 6 in real time.

[0024] The control cabinet 9 is arranged on the right side of the expansion tank 8 and corresponds to the position of the display screen 2. The control cabinet 9 is electrically connected to the display screen 2, the embedded silent circulating water pump 7, the pressure gauge 11, the safety valve 12, the exhaust valve 13, the water level sensor 14 and the pressure transmitter 15. The control cabinet 9 includes a control unit, a monitoring unit, an alarm unit and a communication unit. The control unit is used to automatically switch modes based on the real-time data of the air energy heat pump system, automatically adjust the operation mode of the embedded silent circulating water pump 7, the speed of the embedded silent circulating water pump 7, etc., to achieve optimal energy utilization and efficiency. The monitoring unit is used to monitor and record various parameters of the air energy heat pump system in real time, such as temperature, pressure, flow, liquid level, etc. The alarm unit is used to monitor the operating status of the air energy heat pump system in real time. Once an abnormal situation or fault is found, the fault information is sent out through the communication unit to remind, which helps to find and handle the fault in time, reduce downtime, and improve reliability. The communication unit is used to transmit and interact with the real-time data of the air energy heat pump system. The staff can remotely access the system through a mobile phone APP or computer software to view the operating status, parameter data and control settings, and can also remotely control or adjust. The control cabinet 9 realizes intelligent and automated management, which not only improves the operating efficiency, but also enhances safety and stability, bringing users a more convenient and comfortable use experience.

[0025] The working process of the utility model is as follows:

[0026] Open the control cabinet 9, which is electrically connected to the display screen 2, the built-in silent circulating water pump 7, the pressure gauge 11, the safety valve 12, the exhaust valve 13, the water level sensor 14 and the pressure transmitter 15;

[0027] The circulating water enters the water storage chamber 6 through the first filter 16 along the water inlet 4 of the buffer water tank 1, and is filtered twice through the second filter 20 at the lower end of the embedded silent circulating water pump 7. Finally, under the action of the embedded silent circulating water pump 7, the circulating water is discharged from the water outlet 3 along the outlet pipe 10, and the impurities are discharged from the first sewage outlet 5 along the sewage pipe 19 from the second sewage outlet 18;

[0028] If there is an overpressure inside the water storage chamber 6, the safety valve 12 automatically opens to release the excess pressure and avoid damage from overpressure;

[0029] If the circulating water expands in volume during the heating process, the excess circulating water enters the expansion tank 8 .

[0030] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes. The implementation modes can still be changed within the knowledge scope of ordinary technicians in the field. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Heat pump energy-saving power cabin, characterized by: It comprises a buffer water tank (1), wherein the buffer water tank (1) is arranged in series on a main return water pipe of an air source heat pump system; A display screen (2) is provided at the upper right corner of the front wall of the buffer water tank (1); a water outlet (3) and a water inlet (4) are provided on the right side wall of the buffer water tank (1) in sequence from top to bottom; and a first sewage outlet (5) is provided at the bottom of the left side wall of the buffer water tank (1); The inner cavity of the buffer water tank (1) comprises a water storage cavity (6), an embedded silent circulating water pump (7), an expansion tank (8) and a control cabinet (9); The water storage chamber (6) is sealed and arranged below the inner cavity of the buffer water tank (1); the top and bottom of the water storage chamber (6) are both concave spherical surfaces; the top of the water storage chamber (6) is located below the water outlet (3), and the bottom of the water storage chamber (6) is located below the water inlet (4); the embedded silent circulating water pump (7) is placed at the bottom of the water storage chamber (6); the outlet of the embedded silent circulating water pump (7) is placed above the water storage chamber (6) and is connected to the water outlet (3) through a water outlet pipe (10); the expansion tank (8) is arranged at the upper part of the buffer water tank (1) and is connected to the water storage chamber (6); the top of the water storage chamber (6) is located on the left side of the expansion tank (8) and is provided with a pressure gauge (11), a safety valve (12) and an exhaust valve (13); the top of the water storage chamber (6) is located on the right side of the embedded silent circulating water pump (7) and is provided with a water level sensor (14) and a pressure transmitter (15); The control cabinet (9) is arranged on the right side of the expansion tank (8) corresponding to the position of the display screen (2); the control cabinet (9) is electrically connected to the display screen (2), the built-in silent circulating water pump (7), the pressure gauge (11), the safety valve (12), the exhaust valve (13), the water level sensor (14) and the pressure transmitter (15).

2. The heat pump energy-saving power cabin according to claim 1, characterized in that: A first filter (16) and a water inlet sensor (17) are provided at the water inlet (4), and the water inlet sensor (17) is electrically connected to the control cabinet (9).

3. The heat pump energy-saving power cabin according to claim 1, characterized in that: A second sewage outlet (18) is provided at the bottom of the water storage chamber (6), and the second sewage outlet (18) is connected to the first sewage outlet (5) via a sewage pipe (19).

4. The heat pump energy-saving power cabin according to claim 1, characterized in that: A second filter (20) is provided at the lower end of the embedded silent circulating water pump (7).

5. The heat pump energy-saving power cabin according to claim 1, characterized in that: The water outlet pipe (10) is provided with a remote flow meter (21), and the remote flow meter (21) is electrically connected to the control cabinet (9).

6. The heat pump energy-saving power cabin according to claim 1, characterized in that: The control cabinet (9) comprises a control unit, a monitoring unit, an alarm unit and a communication unit. The control unit is used to automatically switch modes based on real-time data of the air energy heat pump system; the monitoring unit is used to monitor and record various parameters of the air energy heat pump system in real time; the alarm unit is used to monitor the operating status of the air energy heat pump system in real time, and once an abnormal situation or fault is found, the fault information is issued through the communication unit to remind; the communication unit is used to transmit and interact with the real-time data of the air energy heat pump system.

Images