Novel air-water source heat pump energy station

Abstract

The utility model relates to a novel air-water source heat pump energy station, and aims to provide an efficient, environment-friendly and economical energy conversion and heat energy recovery system. The system mainly applies an energy station in the field of heat energy utilization, a water source heat pump device is additionally arranged at a heat source side outlet of a conventional heat exchange unit, heat energy of a heat source side medium subjected to heat exchange through a heat exchanger is recycled through a water source heat pump and input to a cold source side, and the cold source grade is improved. After the heat source side passes through the water source heat pump, the air outside the energy station is sucked by the air source heat pump to be mixed with the air in the energy station for adjustment, so that the temperature of the air entering the air source heat pump is within a set range, and the COP value of the air source heat pump is increased. The heat source side medium absorbs heat energy in the air through the air source heat pump, the temperature of the heat source side medium is increased, the heat source side medium is conveyed to a heat source plant, the temperature of the heat source side medium is increased to the set temperature and then recycled, and the purposes of saving energy, reducing consumption and reducing carbon emission are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial waste heat recovery, and particularly relates to a novel air-source and water-source heat pump energy station. Background Art

[0002] After the heat source of the existing energy station exchanges heat through a heat exchanger, the temperature of the heat source coming out of the heat exchanger will be higher than the temperature of the cold source side entering the heat exchanger, and the surplus heat cannot be completely extracted, resulting in energy waste. At the same time, the rated flow rate passing through the cold source side of the heat exchanger is far less than the actual working flow rate under some working conditions. If the actual working flow rate passes through the cold source side of the heat exchanger, according to the pipeline resistance calculation formula: R=(λ / D)*(ν^2*γ / 2g), it can be known that the resistance of the heat exchanger, pipelines, pipe fittings, valves, etc. will increase according to the square relationship of the flow rate, greatly increasing the energy consumption.

[0003] Note: ν - flow velocity (m / s); λ - resistance coefficient; γ - density (kg / m3); D - pipeline diameter (m); P - pressure (kgf / m2); R - frictional resistance along the way (kgf / m2); L - pipeline length (m); g - acceleration due to gravity = 9.8. The pressure can be converted into Pa, and the method is as follows: 1 Pa

[0004] =1 / 9.81 (kgf / m2).

[0005] Due to the heat dissipation phenomenon during the operation of the equipment in the energy station, this heat is not recovered and utilized. Also, the COP value of the air-source heat pump will decrease rapidly due to the decrease in the ambient temperature, resulting in unstable operation. This technology makes full use of the characteristics that the heat dissipation of the equipment in the energy station causes the ambient temperature to rise and the COP value of the air-source heat pump has a direct relationship with the ambient temperature, and makes full use of the heat dissipation of the equipment in the energy station to control the working ambient temperature of the air-source heat pump, so that the COP value of the air-source heat pump operates in the high-efficiency area, achieving the purpose of energy conservation. Content of the Utility Model

[0006] The utility model provides a novel air-source and water-source heat pump energy station to solve the problems of the existing technology.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions: a novel air-source and water-source heat pump energy station, including a water-source heat pump, a heat exchanger, a plate heat exchanger pressurizing pump, an external network pressurizing pump, an air-source heat pump, and a heat pump pressurizing pump. The output end of the external network pressurizing pump is fixedly connected with a cold source outlet pipe, the input end of the external network pressurizing pump is fixedly connected with a sixth connecting pipe, one end of the sixth connecting pipe is fixedly connected with one side output end of the heat exchanger, one side input end of the heat exchanger is fixedly connected with a fifth connecting pipe, one end of the fifth connecting pipe is fixedly connected with the plate heat exchanger pressurizing pump, and one end of the plate heat exchanger pressurizing pump is fixedly connected with a cold source inlet pipe;

[0008] The input end on the other side of the heat exchanger is fixedly connected to a heat source inlet pipe. The output end on the other side of the heat source inlet pipe is fixedly connected to a first connecting pipe. One end of the first connecting pipe is fixedly connected to an input port of a water source heat pump. An output port of the water source heat pump is fixedly connected to a second connecting pipe. One end of the second connecting pipe is fixedly connected to an air source heat pump. The output end of the air source heat pump is fixedly connected to a heat source outlet pipe.

[0009] A seventh connecting pipe runs through and is fixedly connected between the first connecting pipe and the heat source outlet pipe. An input end of the water source heat pump is fixedly connected to a third connecting pipe. One end of the third connecting pipe is fixedly connected to a heat pump pressurizing pump. One end of the heat pump pressurizing pump is fixedly connected to an eighth connecting pipe. One end of the eighth connecting pipe is fixedly connected to a cold source inlet pipe. An output end of the water source heat pump is fixedly connected to a fourth connecting pipe. One end of the fourth connecting pipe is fixedly connected to a sixth connecting pipe.

[0010] In this application, the water source heat pump is driven by electric energy. The heat source from the heat exchanger is further recovered by using devices such as the evaporator, compressor, and condenser of the water source heat pump. The recovered heat medium is mixed with the heat medium on the cold source outlet side of the heat exchanger. This can greatly reduce the temperature of the heat source side medium and improve the quality of the cold source side medium. Since the actual energy efficiency ratio of the heat pump is 4 - 6, the energy consumption can be greatly reduced. A plate heat exchanger pressurizing pump is installed on the cold source side of the heat exchanger. This pump is configured according to the rated flow and resistance of the heat exchanger. An external network pressurizing pump is also installed. The medium on the cold source outlet side of the heat exchanger is mixed with the medium after the heat pump's recycling and then output by the external network pressurizing pump. The heat source side medium absorbs the heat energy of the mixed air in the energy station through the air source heat pump, reducing the energy consumption of the heat source plant.

[0011] In some specific embodiments, it further includes an energy station building. The energy station is placed inside the energy station building. An air source heat pump fan is installed on one side of the energy station building, and an air inlet is installed on the other side of the energy station building. The function of the energy station building is to provide a protective shell for the new air - water source heat pump energy station, ensuring the stable operation of the equipment, easy maintenance, and optimizing safety and environmental adaptability.

[0012] In some specific embodiments, a check valve, a butterfly valve, and a heat meter are installed inside the cold source outlet pipe. Butterfly valves are installed at both ends of the sixth connecting pipe. A pressure and temperature detector is installed at the end of the sixth connecting pipe close to the heat exchanger. A butterfly valve, a pressure and temperature detector, and a heat meter are installed on one side inside the heat source inlet pipe. This helps to control and monitor the water flow and temperature of the new air - water source heat pump energy station, ensuring the efficient and safe operation of the system.

[0013] In some specific embodiments, a butterfly valve is installed inside the cold source inlet pipe. One end of the fifth connecting pipe is equipped with a butterfly valve and a check valve, and the other end is equipped with a butterfly valve and a pressure and temperature detector. One end of the first connecting pipe is equipped with a pressure and temperature detector, and the other end is equipped with a butterfly valve. A butterfly valve is installed inside the second connecting pipe. One end of the heat source outlet pipe is equipped with a butterfly valve, and the other end is equipped with a pressure and temperature detector; this helps to regulate the water flow of the new air-source water-source heat pump energy station and monitor its temperature and pressure to ensure the normal operation and energy efficiency optimization of the system.

[0014] In some specific embodiments, a butterfly valve is installed inside the eighth connecting pipe. One end of the third connecting pipe is equipped with a check valve and a butterfly valve, and the other end is equipped with a butterfly valve and a pressure and temperature detector. A butterfly valve and a pressure and temperature detector are installed inside the fourth connecting pipe. A butterfly valve is installed inside the seventh connecting pipe; this helps to control the water flow of the new air-source water-source heat pump energy station, prevent backflow, and monitor the pressure and temperature of the system to ensure the reliability and efficiency of operation.

[0015] In some specific embodiments, the water-source heat pump, heat exchanger, plate heat exchanger pressurizing pump, external network pressurizing pump, air-source heat pump, and heat pump pressurizing pump are all connected to a power source through wires; so that they can receive electrical energy and drive the normal operation of each component of the new air-source water-source heat pump energy station.

[0016] In some specific embodiments, the water-source heat pump, heat exchanger, plate heat exchanger pressurizing pump, external network pressurizing pump, air-source heat pump, and heat pump pressurizing pump are all provided with operation panels for displaying and adjusting working parameters; the operation panels enable users to monitor and adjust the working parameters of each pump and heat pump in the new air-source water-source heat pump energy station to optimize performance and energy efficiency.

[0017] This system mainly uses an energy station in the field of thermal energy utilization. A water-source heat pump device is installed at the outlet of the heat source side of a conventional heat exchange unit. The heat source-side medium after heat exchange through the heat exchanger is reused by the water-source heat pump to recover heat energy and input it to the cold source side, improving the cold source grade. Since there will be heat dissipation during the operation of the equipment itself, the environmental temperature inside the energy station is much higher than the environmental temperature outside the energy station. Therefore, after the heat source side passes through the water-source heat pump, the air-source heat pump is used to draw in the outside air of the energy station and mix it with the air inside the energy station for adjustment, so that the temperature of the air entering the air-source heat pump is within a set range, thereby increasing the COP value of the air-source heat pump. After the heat source-side medium absorbs the heat energy in the air through the air-source heat pump, the temperature of the heat source-side medium is increased and transported to the heat source plant. After the temperature of the heat source-side medium is further increased to the set temperature, it is recycled, achieving the purpose of energy conservation, consumption reduction, and carbon emission reduction.

[0018] The beneficial effects of the present utility model are:

[0019] 1. By integrating water source heat pump and air source heat pump technologies, the system can efficiently extract heat energy from the natural environment and upgrade the energy grade through the compression and condensation processes of the heat pump. Due to the high coefficient of performance (COP) of the heat pump system, the system provides more heat energy output while consuming less electrical energy, achieving efficient utilization of energy. The heat recovery mechanism in the system design allows heat to be reused multiple times, reducing the direct consumption of primary energy. In addition, the configuration of the plate heat exchanger pressurizing pump and the external network pressurizing pump optimizes the flow rate and pressure on the cold source side, further improving the overall energy efficiency of the system and reducing the operating cost;

[0020] 2. By using renewable air-water source heat energy, the system reduces its dependence on fossil fuels, thereby reducing greenhouse gas emissions and other pollutant emissions, which has a positive impact on environmental protection and climate change mitigation. The design of multiple pumps and connecting pipes inside the system ensures the effective distribution and mixing of cold and heat sources, and can guarantee continuous and stable heat energy supply even under partial load or equipment failure conditions, enhancing the adaptability of the system to different operating conditions. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall system connection structure of the present utility model.

[0022] Figure 2 is a schematic diagram of the overall structure connection structure of the present utility model.

[0023] Figure 3 is a schematic diagram of the assembly structure of the present utility model..

[0024] Figures 1 to 3 In the figure: 1. Water source heat pump; 2. Heat exchanger; 3. Plate heat exchanger pressurizing pump; 4. External network pressurizing pump; 5. Air source heat pump; 6. Heat pump pressurizing pump; 7. Air source heat pump fan; 8. Air inlet; 9. Energy station building; 11. First connecting pipe; 12. Second connecting pipe; 13. Third connecting pipe; 14. Fourth connecting pipe; 21. Heat source inlet pipe; 22. Fifth connecting pipe; 31. Cold source inlet pipe; 41. Cold source outlet pipe; 42. Sixth connecting pipe; 51. Heat source outlet pipe; 52. Seventh connecting pipe; 61. Eighth connecting pipe. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Such as Figures 1 - 3A new type of air-water source heat pump energy station shown in the figure includes a water source heat pump 1, a heat exchanger 2, a plate heat exchanger pressurizing pump 3, an external network pressurizing pump 4, an air source heat pump 5 and a heat pump pressurizing pump 6. The output end of the external network pressurizing pump 4 is fixedly connected with a cold source outlet pipe 41, and the input end of the external network pressurizing pump 4 is fixedly connected with a sixth connecting pipe 42. One end of the sixth connecting pipe 42 is fixedly connected with the output end on one side of the heat exchanger 2. The input end on one side of the heat exchanger 2 is fixedly connected with a fifth connecting pipe 22. One end of the fifth connecting pipe 22 is fixedly connected with the plate heat exchanger pressurizing pump 3. One end of the plate heat exchanger pressurizing pump 3 is fixedly connected with a cold source inlet pipe 31; the input end on the other side of the heat exchanger 2 is fixedly connected with a heat source inlet pipe 21. The output end on the other side of the heat source inlet pipe 21 is fixedly connected with a first connecting pipe 11. One end of the first connecting pipe 11 is fixedly connected with an input port of the water source heat pump 1. An output port of the water source heat pump 1 is fixedly connected with a second connecting pipe 12. One end of the second connecting pipe 12 is fixedly connected with the air source heat pump 5. The output end of the air source heat pump 5 is fixedly connected with a heat source outlet pipe 51; the first connecting pipe 11 and the heat source outlet pipe 51 are fixedly connected through a seventh connecting pipe 52. An input end of the water source heat pump 1 is fixedly connected with a third connecting pipe 13. One end of the third connecting pipe 13 is fixedly connected with the heat pump pressurizing pump 6. One end of the heat pump pressurizing pump 6 is fixedly connected with an eighth connecting pipe 61. One end of the eighth connecting pipe 61 is fixedly connected with the cold source inlet pipe 31. An output end of the water source heat pump 1 is fixedly connected with a fourth connecting pipe 14. One end of the fourth connecting pipe 14 is fixedly connected with the sixth connecting pipe 42.

[0027] The working principle of the new air-water source heat pump energy station is based on heat pump technology and realizes efficient energy conversion and heat recovery through the following steps:

[0028] Drive and start: After the system is powered on, key components such as the water source heat pump, heat exchanger, plate heat exchanger pressurizing pump, external network pressurizing pump, air source heat pump and heat pump pressurizing pump are started. These components are driven by electric energy and are ready to enter the working state.

[0029] Energy absorption: The evaporator of the water source heat pump absorbs low-temperature heat energy from the external water source (such as groundwater, lakes, etc.). At the same time, the air source heat pump absorbs the heat energy of the mixed air in the environment of the energy station.

[0030] Energy boosting: The absorbed low-temperature heat energy is compressed by the compressor of the heat pump, and the temperature is increased. During the compression process, electrical energy is converted into heat energy, making the temperature of the heat medium high enough for heating or other industrial uses.

[0031] Heat energy transfer and utilization: The high-temperature heat medium enters the condenser, where it transfers the heat energy to the space or fluid that needs to be heated. For example, in a heating system, this process warms the room or provides hot water.

[0032] Heat source recovery: After being used, the temperature of the heat medium decreases, but it still contains a large amount of thermal energy. At this time, through the heat exchanger, this part of the heat is further recovered. The water source heat pump comes into play again, absorbing the low-temperature thermal energy and repeating the above-mentioned process of boosting and utilization.

[0033] Cold source management: On the cold source side of the heat exchanger, the plate heat exchanger pressurizing pump operates according to the rated flow and resistance of the heat exchanger to ensure the fluidity and efficiency of the cold source side system. The external network pressurizing pump mixes the medium on the cold source outlet side of the heat exchanger with the medium after being recovered by the heat pump and then outputs it to the system to ensure the continuous supply and efficiency of the cold source.

[0034] Energy efficiency optimization: Since the coefficient of performance (COP) of the heat pump is usually between 4 and 6, it means that for every 1 kWh of electrical energy consumed, 4 to 6 kWh of thermal energy can be generated, thus greatly reducing energy consumption.

[0035] Environmental regulation: The entire system is regulated through precise control and monitoring devices (such as operation panels, pressure and temperature detectors, check valves, and butterfly valves, etc.) to ensure optimal operation under different environmental conditions.

[0036] System integration: All components and processes are carried out in the energy station building, which not only protects the equipment from the influence of the external environment but also improves the stability and efficiency of the system through integrated management.

[0037] It also includes the energy station building 9. The energy station is placed inside the energy station building 9. An air source heat pump fan 7 is installed on one side of the energy station building 9, and an air inlet 8 is installed on the other side of the energy station building 9.

[0038] A check valve, a butterfly valve, and a heat meter are installed inside the cold source outlet pipe 41. Butterfly valves are installed at both ends of the sixth connecting pipe 42. A pressure and temperature detector is installed at one end of the sixth connecting pipe 42 close to the heat exchanger 2. A butterfly valve, a pressure and temperature detector, and a heat meter are installed on one side inside the heat source inlet pipe 21. A butterfly valve is installed inside the cold source inlet pipe 31. A butterfly valve and a check valve are installed at one end of the fifth connecting pipe 22, and a butterfly valve and a pressure and temperature detector are installed at the other end. A pressure and temperature detector is installed at one end of the first connecting pipe 11, and a butterfly valve is installed at the other end. A butterfly valve is installed inside the second connecting pipe 12. A butterfly valve is installed at one end of the heat source outlet pipe 51, and a pressure and temperature detector is installed at the other end. A butterfly valve is installed inside the eighth connecting pipe 61. A check valve and a butterfly valve are installed at one end of the third connecting pipe 13, and a butterfly valve and a pressure and temperature detector are installed at the other end. A butterfly valve and a pressure and temperature detector are installed inside the fourth connecting pipe 14. A butterfly valve is installed inside the seventh connecting pipe 52.

[0039] The water source heat pump 1, the heat exchanger 2, the plate heat exchanger pressurizing pump 3, the external network pressurizing pump 4, the air source heat pump 5 and the heat pump pressurizing pump 6 are all connected to the power supply through wires. The water source heat pump 1, the heat exchanger 2, the plate heat exchanger pressurizing pump 3, the external network pressurizing pump 4, the air source heat pump 5 and the heat pump pressurizing pump 6 are all provided with operation panels for displaying and adjusting working parameters.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel air-water source heat pump energy station, comprising a water source heat pump (1), a heat exchanger (2), a plate heat exchanger booster pump (3), an external network booster pump (4), an air source heat pump (5) and a heat pump booster pump (6), characterized in that: The output end of the external network boosting pump (4) is fixedly connected to a cold source outlet pipe (41), the input end of the external network boosting pump (4) is fixedly connected to a sixth connecting pipe (42), one end of the sixth connecting pipe (42) is fixedly connected to an output end of one side of the heat exchanger (2), one end of the input end of one side of the heat exchanger (2) is fixedly connected to a fifth connecting pipe (22), one end of the fifth connecting pipe (22) is fixedly connected to a plate exchange boosting pump (3), and one end of the plate exchange boosting pump (3) is fixedly connected to a cold source inlet pipe (31); The input end on the other side of the heat exchanger (2) is fixedly connected to a heat source inlet pipe (21), the output end on the other side of the heat source inlet pipe (21) is fixedly connected to a first connecting pipe (11), one end of the first connecting pipe (11) is fixedly connected to an input port of a water source heat pump (1), one output port of the water source heat pump (1) is fixedly connected to a second connecting pipe (12), one end of the second connecting pipe (12) is fixedly connected to an air source heat pump (5), and the output end of the air source heat pump (5) is fixedly connected to a heat source outlet pipe (51); The first connecting pipe (11) and the heat source outlet pipe (51) are fixedly connected via a seventh connecting pipe (52); an input end of the water source heat pump (1) is fixedly connected to a third connecting pipe (13); one end of the third connecting pipe (13) is fixedly connected to a heat pump booster pump (6); one end of the heat pump booster pump (6) is fixedly connected to an eighth connecting pipe (61); one end of the eighth connecting pipe (61) is fixedly connected to a cold source inlet pipe (31); an output end of the water source heat pump (1) is fixedly connected to a fourth connecting pipe (14); one end of the fourth connecting pipe (14) is fixedly connected to a sixth connecting pipe (42).

2. A novel air-to-water source heat pump energy station according to claim 1, characterized in that: It also includes an energy station building (9), wherein the energy station is placed inside the energy station building (9), an air source heat pump fan (7) is installed on one side of the energy station building (9), and an air inlet (8) is installed on the other side of the energy station building (9).

3. A new type of air-to-water source heat pump energy station according to claim 1, characterized in that: A check valve, a butterfly valve and a heat meter are installed inside the cold source outlet pipe (41), butterfly valves are installed at both ends of the sixth connecting pipe (42), a pressure and temperature detector is installed at one end of the sixth connecting pipe (42) close to the heat exchanger (2), and a butterfly valve, a pressure and temperature detector and a heat meter are installed on one side of the interior of the heat source inlet pipe (21).

4. The novel air-to-water source heat pump energy station according to claim 1 is characterized by: A butterfly valve is installed inside the cold source inlet pipe (31), a butterfly valve and a check valve are installed at one end of the fifth connecting pipe (22), and a butterfly valve and a pressure and temperature detector are installed at the other end, a pressure and temperature detector is installed at one end of the first connecting pipe (11), and a butterfly valve is installed at the other end, a butterfly valve is installed inside the second connecting pipe (12), and a butterfly valve is installed at one end of the heat source outlet pipe (51), and a pressure and temperature detector is installed at the other end.

5. The novel air-to-water source heat pump energy station according to claim 1 is characterized by: A butterfly valve is installed inside the eighth connecting pipe (61), a check valve and a butterfly valve are installed at one end of the third connecting pipe (13), and a butterfly valve and a pressure and temperature detector are installed at the other end, a butterfly valve and a pressure and temperature detector are installed inside the fourth connecting pipe (14), and a butterfly valve is installed inside the seventh connecting pipe (52).

6. The novel air-to-water source heat pump energy station according to claim 1 is characterized by: The water source heat pump (1), the heat exchanger (2), the plate heat exchanger booster pump (3), the external network booster pump (4), the air source heat pump (5) and the heat pump booster pump (6) are all connected to a power source via electric wires.

7. The novel air-to-water source heat pump energy station according to claim 1 is characterized by: The water source heat pump (1), the heat exchanger (2), the plate heat exchanger booster pump (3), the external network booster pump (4), the air source heat pump (5) and the heat pump booster pump (6) are all provided with an operation panel for displaying and adjusting working parameters.

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