Heat pump energy supply system combining water source and air source
By designing a heat pump energy supply system that combines water sources and air sources, and using technical means such as heat pump units and cyclone sand decompressors, the problems of poor energy supply continuity and stability of water source heat pumps are solved, and more efficient and stable energy supply is achieved.
Patent Information
- Application Number
- CN202421264292.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-04
AI Technical Summary
In actual application, water source heat pumps have poor energy supply continuity and stability, so how to ensure the continuity and stability of energy supply has become a challenge.
Design a heat pump energy supply system that combines water source and air source, and realizes water source energy through the first condenser, first compressor, first water source evaporator, air source evaporator and four-way valve in the heat pump unit efficient conversion and utilization, and ensure clean operation of the system and energy utilization efficiency through the setting of cyclone desander and circulation circuit.
By integrating the water source and air source heat pump functions, the system's energy supply continuity and stability are improved, the energy supply costs are reduced, and it is suitable for energy demand under different environmental conditions.
Smart Images
Figure CN222459865U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of heat pumps, in particular to a heat pump energy supply system combining a water source and an air source. [Background technology]
[0002] Heat pump technology, with its unique ability, can convert low-grade heat energy into high-grade energy, and the high-grade heat energy generated during the conversion process often far exceeds the energy power invested, thus showing significant economic value. Therefore, heat pump products such as air source heat pumps, water source heat pumps, and ground source heat pumps have been widely used and promoted in the market.
[0003] For places with abundant water and heat resources, water source heat pumps are the preferred choice due to their high efficiency in utilizing thermal energy. However, in practical applications, the energy supply of water source heat pumps is limited by the objective conditions of the water source, and the continuity and stability of energy supply are relatively poor. How to ensure the continuity and stability of energy supply has become a challenge for this technology. [Contents of the utility model]
[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a heat pump energy supply system combining water source and air source, which uses a common set of equipment for water source and air source, reduces the heat pump energy supply cost, and improves the energy supply continuity and stability of the system.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A heat pump energy supply system combining water source and air source, comprising a water source well, a first circulation conduit, a heat pump unit and a fan coil unit, including: the heat pump unit comprises a first condenser, a first compressor, a first water source evaporator, an air source evaporator and a four-way valve, a first circulation loop is arranged between the first condenser and the first water source evaporator, one end of the first circulation conduit is arranged in the water source well, and the other end of the first circulation conduit is connected to the first water source evaporator; a second circulation loop is arranged between the first condenser and the air source evaporator, the four-way valve is arranged on the first circulation loop and the second circulation loop, and the first compressor is arranged on the first circulation loop and the second circulation loop; the first condenser and the fan coil unit are connected.
[0007] The utility model is further configured as follows: it also includes a second water source evaporator and a second condenser, a third circulation loop is arranged between the second water source evaporator and the second condenser, and the third circulation loop is provided with a second compressor.
[0008] The utility model is further configured as follows: the second water source evaporator is connected to a second circulation conduit placed in the water source well.
[0009] The utility model is further configured as follows: a cyclone desander is installed in the water inlet sections of both the first circulation conduit and the second circulation conduit.
[0010] The utility model is further configured as follows: the first circulation loop, the second circulation loop and the third circulation loop are all provided with a cut-off device.
[0011] The utility model is further configured as follows: the first circulation loop, the second circulation loop and the third circulation loop are all provided with throttling devices, and the throttling devices are electronic expansion valves.
[0012] The utility model is further configured to include an energy storage water tank connected to the first condenser.
[0013] The utility model is further configured as follows: the energy storage water tank is respectively connected to the first water source evaporator and the second water source evaporator.
[0014] The utility model is further configured as follows: the energy storage water tank comprises a stainless steel box body, a heat insulation layer and a galvanized sheet layer which are coaxially arranged in sequence from the inside to the outside.
[0015] The utility model is further configured as follows: the stainless steel box body is made of 304 stainless steel, the heat insulation layer is made of fluorine-free polyurethane foam material, and the galvanized sheet layer is treated with electrostatic spraying and baking paint.
[0016] Compared with the prior art, the utility model has the following advantages:
[0017] The utility model integrates the functions of a water source heat pump and an air source heat pump, and realizes efficient conversion and utilization of water source and air source energy through the first condenser, the first compressor, the first water source evaporator, the air source evaporator and the four-way valve in the heat pump unit. The first circulation conduit and the second circulation conduit respectively introduce water source energy from the water source well, and the cyclone desander ensures clean operation of the system; at the same time, the energy utilization efficiency is improved, and it has high flexibility and is suitable for energy needs under different environmental conditions.
Brief Description of the Drawings
[0018] Figure 1 A schematic diagram of the structure of a heat pump energy supply system combining water source and air source in some embodiments;
[0019] Figure 2 This is a schematic structural diagram of a heat pump energy supply system combining water source and air source in another embodiment.
[0020] Figure numerals: 1. Water source well; 21. First circulation duct; 22. Second circulation duct; 23. Cyclone desander; 31. First condenser; 32. First compressor; 33. First water source evaporator; 34. Air source evaporator; 35. Four-way valve; 41. First circulation loop; 42. Second circulation loop; 43. Third circulation loop; 5. Fan coil; 61. Second water source evaporator; 62. Second condenser; 63. Second compressor; 71. Shut-off device; 72. Throttling device; 8. Energy storage tank; 81. Circulation pump. [Specific implementation method]
[0021] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.
[0022] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.
[0023] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.
[0024] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0025] Water source heat pump is a low-grade heat energy resource formed by solar energy and geothermal energy absorbed by shallow water sources on the earth's surface, such as groundwater, rivers and lakes. It adopts the principle of heat pump and realizes the transfer of low-grade heat energy to high-grade heat energy through a small amount of high-grade electric energy input. Air source heat pump is an energy-saving device that uses high-grade energy to make heat flow from low-grade heat source air to high-grade heat source. That is, it can convert low-grade heat energy that cannot be directly used (such as heat contained in air, soil, and water) into high-grade heat energy that can be used, thereby achieving the purpose of saving some high-grade energy (such as coal, gas, oil, electricity, etc.).
[0026] like Figure 1 As shown, the utility model discloses a heat pump energy supply system combining water source and air source, including a water source well 1, a first circulation conduit 21, a heat pump unit and a fan coil 5, including: the heat pump unit includes a first condenser 31, a first compressor 32, a first water source evaporator 33, an air source evaporator 34 and a four-way valve 35, a first circulation loop 41 is arranged between the first condenser 31 and the first water source evaporator 33, one end of the first circulation conduit 21 is arranged in the water source well 1, and the other end of the first circulation conduit 21 is connected to the first water source evaporator 33; a second circulation loop 42 is arranged between the first condenser 31 and the air source evaporator 34, the four-way valve 35 is respectively arranged on the first circulation loop 41 and the second circulation loop 42, the first compressor 32 is arranged on the first circulation loop 41 and the second circulation loop 42; the first condenser 31 and the fan coil 5 are connected.
[0027] For example, in the water source heat pump mode, when the first compressor 32 is running, the high-temperature and high-pressure refrigerant from the first compressor 32 flows through the closed pipe through the four-way valve 35 into the first condenser 31 to release heat and condense, and enters the first water source evaporator 33 to absorb heat and vaporize after throttling by the throttling device 72, and then returns to the first compressor 32 through the pipe to be compressed and heated, forming a complete heating cycle; in this mode, the cut-off device 71 where the air source evaporator 34 is located is closed, and the air source evaporator 34 stops running. In the air source heat pump mode, when the first compressor 32 is running, the high-temperature and high-pressure refrigerant from the first compressor 32 flows through the closed pipe through the four-way valve 35 into the first condenser 31 to release heat and condense, and enters the air source evaporator 34 to absorb heat and vaporize after throttling by the throttling device 72, and then returns to the first compressor 32 through the four-way valve 35 to be compressed and heated, forming a complete heating cycle; in this mode, the cut-off device 71 where the first water source evaporator 33 is located is closed, the first water source evaporator 33 stops running, and the air source evaporator 34 is powered on.
[0028] Alternatively, if Figure 2As shown, it also includes a second water source evaporator 61 and a second condenser 62. A third circulation loop 43 is arranged between the second water source evaporator 61 and the second condenser 62. The third circulation loop 43 is provided with a second compressor 63. The second water source evaporator 61 is connected to a second circulation conduit 22 placed in the water source well 1.
[0029] Specifically, the core lies in its innovative dual evaporator design, including the first water source evaporator 33 and the second water source evaporator 61, both of which are connected to the water source well 1 through the first circulation conduit 21 and the second circulation conduit 22. In the heating mode, the system can start the first water source evaporator 33 and the second water source evaporator 61 at the same time to absorb more heat from the water source well 1. After compression by the first compressor 32 and the second compressor 63, the heat energy is released to the first condenser 31 and the second condenser 62 arranged in parallel, and the warm airflow is transported to the room through the fan coil 5, providing a powerful heating capacity. In addition, through the first condenser 31 and the second condenser 62 arranged in parallel, the system can adjust the load distribution according to actual needs to further improve energy efficiency.
[0030] Optionally, the water inlet sections of both the first circulation duct 21 and the second circulation duct 22 are installed with a cyclone desander 23, which is mainly used to remove solid particles in the water, such as sand, soil and other impurities; if the aforementioned impurities are not removed, they are likely to accumulate inside the circulation duct or the heat pump unit, causing pipe blockage, equipment wear or performance degradation.
[0031] Optionally, the first circulation loop 41, the second circulation loop 42 and the third circulation loop 43 are all provided with a cut-off device 71 and a throttling device 72, and the throttling device 72 is an electronic expansion valve. To ensure independent control and efficient operation of each circulation loop, the first circulation loop 41, the second circulation loop 42 and the third circulation loop 43 are all provided with a cut-off device 71 and a throttling device 72, which improves the flexibility and reliability of the system and helps to optimize energy utilization and cost control.
[0032] Optionally, an energy storage water tank 8 connected to the first condenser 31 is further included, and the energy storage water tank 8 is respectively connected to the first water source evaporator 33 and the second water source evaporator 61.
[0033] For example, when in air source heat pump mode, the water in the energy storage water tank 8 enters the first condenser 31, absorbs the heat of the high-pressure and high-temperature refrigerant gas in the first condenser 31, and generates hot water. After the hot water enters the energy storage water tank 8 through the circulation pump 81 to release heat, the water with a lower temperature returns to the first condenser 31 to continue absorbing heat. When in water source heat pump mode, the water in the energy storage water tank 8 enters the first water source evaporator 33 and the second water source evaporator 61 through the circulation pump 81, providing heat for the low-temperature and low-pressure liquid in the first water source evaporator 33 and the second water source evaporator 61. This improves the heat exchange efficiency of the entire heating system, and has low operating costs, outstanding energy-saving effects, and stable performance.
[0034] Optionally, the energy storage water tank 8 includes a stainless steel box body, a heat insulation layer and a galvanized sheet layer coaxially arranged from the inside to the outside, the stainless steel box body is made of 304 stainless steel, the heat insulation layer is made of fluorine-free polyurethane foam material, and the galvanized sheet layer is electrostatically sprayed and painted. The energy storage water tank 8 adopts a multi-layer structure coaxially arranged from the inside to the outside, including a stainless steel box body made of 304 stainless steel as the inner layer, which has excellent corrosion resistance and strength; the middle layer is a heat insulation layer made of fluorine-free polyurethane foam material, which effectively reduces heat loss and improves energy efficiency; the outer layer is a galvanized sheet layer treated with electrostatic spraying and painting, which is not only beautiful and durable, but also enhances the stability of the overall structure.
[0035] Some exemplary embodiments of the utility model are described above, but those skilled in the art will appreciate that changes may be made to these exemplary embodiments without departing from the principles or spirit of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A heat pump energy supply system combining water source and air source, comprising a water source well (1), a first circulation conduit (21), a heat pump unit and a fan coil unit (5), characterized in that: include: The heat pump unit comprises a first condenser (31), a first compressor (32), a first water source evaporator (33), an air source evaporator (34) and a four-way valve (35); a first circulation loop (41) is arranged between the first condenser (31) and the first water source evaporator (33); one end of the first circulation conduit (21) is arranged in the water source well (1), and the other end of the first circulation conduit (21) is connected to the first water source evaporator (33); a second circulation loop (42) is arranged between the first condenser (31) and the air source evaporator (34); the four-way valve (35) is arranged on the first circulation loop (41) and the second circulation loop (42); the first compressor (32) is arranged on the first circulation loop (41) and the second circulation loop (42); the first condenser (31) and the fan coil unit (5) are connected.
2. The heat pump energy supply system combining water source and air source according to claim 1, characterized in that: It also includes a second water source evaporator (61) and a second condenser (62), a third circulation loop (43) is provided between the second water source evaporator (61) and the second condenser (62), and the third circulation loop (43) is provided with a second compressor (63).
3. The heat pump energy supply system combining water source and air source according to claim 2, characterized in that: The second water source evaporator (61) is connected to a second circulation conduit (22) placed in the water source well (1).
4. The heat pump energy supply system combining water source and air source according to claim 3, characterized in that: The water inlet sections of both the first circulation conduit (21) and the second circulation conduit (22) are equipped with cyclone desanders (23).
5. The heat pump energy supply system combining water source and air source according to claim 2, characterized in that: The first circulation loop (41), the second circulation loop (42) and the third circulation loop (43) are all provided with a shutoff device (71).
6. The heat pump energy supply system combining water source and air source according to claim 2, characterized in that: The first circulation loop (41), the second circulation loop (42) and the third circulation loop (43) are all provided with a throttling device (72), and the throttling device (72) is an electronic expansion valve.
7. The heat pump energy supply system combining water source and air source according to claim 2, characterized in that: It also includes an energy storage water tank (8) connected to the first condenser (31).
8. The heat pump energy supply system combining water source and air source according to claim 7, characterized in that: The energy storage water tank (8) is respectively connected to the first water source evaporator (33) and the second water source evaporator (61).
9. The heat pump energy supply system combining water source and air source according to claim 7, characterized in that: The energy storage water tank (8) comprises a stainless steel box body, a heat insulation layer and a galvanized sheet layer which are coaxially arranged in sequence from the inside to the outside.
10. The heat pump energy supply system combining water source and air source according to claim 9, characterized in that: The stainless steel box body is made of 304 stainless steel, the heat insulation layer is made of fluorine-free polyurethane foam material, and the galvanized sheet layer is treated with electrostatic spraying and baking paint.