Transfer type heat pump unit with low energy consumption
By introducing an energy migrater into the air source heat pump and utilizing the natural convection circulation of the liquid working fluid to transfer high-quality thermal energy to the incoming air, the problem of insufficient heating capacity in low-temperature environments is solved, efficient heating and comprehensive resource utilization are achieved, and energy waste and operating costs are reduced.
Patent Information
- Application Number
- CN202511080685.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2025-10-17
AI Technical Summary
Existing air source heat pumps have insufficient heating capacity at low ambient temperatures and are prone to frosting, resulting in low heat utilization efficiency and energy waste, and the energy of discharged wastewater is not fully utilized.
An energy migrator is used, including an evaporation section, an adiabatic section and a condensation section. The liquid working medium is used to form a natural convection cycle under the action of pressure difference, and high-grade heat energy is transferred from the evaporation section to the condensation section, preheating the incoming air to improve the heating capacity, and transferring the heat in the air to the place that needs to be heated through the thermodynamic cycle process of the evaporator, compressor, condenser and throttling device.
Significantly improve the heating capacity of heat pump units in low-temperature environments, reduce the risk of frost, save energy, reduce operating costs, achieve comprehensive resource utilization and environmentally friendly production, and broaden the scope of application.
Smart Images
Figure CN120799764A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of heat pump units, in particular to a heat pump unit with energy low-energy consumption migration. BACKGROUND
[0002] The air source heat pump unit is a product for producing hot water and heating by absorbing heat in the air, which is a heating equipment and hot water device that can replace the boiler. It greatly improves the heat efficiency by heat exchange between water and refrigerant after heat production by refrigerant temperature difference and compressor compression, and fully utilizes new energy, which is a new type of hot water equipment that perfectly combines the respective advantages of electric water heaters and solar water heaters.
[0003] However, when the existing air source heat pump is in a low-temperature environment, the heat absorbed from the environment is less, and at the same time, the low evaporation temperature may condense water in the air on the fin, and the frost and ice will seriously affect the heat absorbed from the outside air by the heat pump unit. Many heat is not well utilized, such as the hot air in the room is discharged to the outside, and the discharged air has a higher enthalpy value than the outdoor air. There are also a large amount of waste water discharged in life, and the energy in the waste water can also be deeply refined.
[0004] The use of heat pumps to replace coal with electricity has become a trend in the industry, and how to improve the heating capacity of the air source heat pump unit in a low-temperature environment is a research topic for research institutions and heat pump professional enterprises. However, there is no application and promotion of the product of transferring free high-grade heat energy out of the air source heat pump through an energy migration device to preheat the air.
[0005] Therefore, it is necessary to provide a new heat pump unit with energy low-energy consumption migration to solve the above technical problems. SUMMARY
[0006] To solve the above technical problems, the present application provides a heat pump unit with energy low-energy consumption migration.
[0007] The heat pump unit with energy low-energy consumption migration provided by the present application comprises an evaporator, a compressor, a condenser, a throttling device, a fan and an energy migration device. The energy migration device comprises an evaporation section, an adiabatic section and a condensation section, and is provided with a liquid working medium. The evaporator is arranged on one side of the energy migration device close to the condensation section, the fan is arranged on the side of the evaporator away from the energy migration device, the compressor is arranged between the gas outlet of the evaporator and the air inlet of the condenser, and the throttling device is arranged between the liquid inlet end of the evaporator and the liquid outlet end of the condenser.
[0008] Preferably, the temperature of the evaporation section of the energy migrator is lower than that of the condensation section, and the difference exceeds the start-up temperature difference of the heat pipe, so that the liquid working medium in the evaporation section absorbs the latent heat of vaporization to evaporate into gas, and rises to the condensation section under the action of pressure difference, condenses into liquid after releasing the latent heat of vaporization, and automatically falls to the evaporation section under the action of gravity, forming a natural convection circulation without external power, and transferring heat from the evaporation section to the condensation section.
[0009] Preferably, the energy migrator is used to transfer high-grade heat energy to the inlet air of the heat pump unit to preheat the inlet air and improve the heating capacity of the heat pump unit at low ambient temperature.
[0010] Preferably, the heat pump unit transfers heat in the air and waste heat from the outside to a place that needs to be heated through the thermodynamic cycle of the liquid working medium between the evaporator, the compressor, the condenser and the throttling device.
[0011] Preferably, the thermodynamic cycle is that the liquid working medium continuously completes evaporation in the evaporator, the vaporized liquid working medium is compressed by the compressor, and then condensed by the condenser to release heat to a carrier that needs to be heated, and the working medium is depressurized by the throttling device and then enters the evaporator for thermodynamic cycle, so that the heat in the air and the waste heat from the outside are fully transferred to the place that needs to be heated.
[0012] Compared with the related art, the energy low-energy-consumption migration type heat pump unit provided by the application has the following beneficial effects:
[0013] The energy low-energy-consumption migration type heat pump unit provided by the application effectively recovers the discharged energy, avoids pollution, uses clean, environmentally friendly and renewable resources to produce hot water, has a high COP value, can replace traditional high-priced and non-renewable resources such as coal and oil for producing hot water, is more cost-saving than similar products, achieves high resource comprehensive utilization rate and the purpose of energy saving and consumption reduction, and has a clean and pollution-free production environment, ensuring the health of workers. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 The energy low-energy-consumption migration type heat pump unit provided by the application is shown in the structure diagram.
[0015] Fig. 2 The operation principle diagram of the energy migrator provided by the application is shown.
[0016] In the figure, 1 is an evaporator, 2 is a compressor, 3 is a condenser, 4 is a throttling device, 5 is a fan, 6 is an energy migrator, 7 is an evaporation section, 8 is an adiabatic section, and 9 is a condensation section. DETAILED DESCRIPTION
[0017] The application will be further described below in conjunction with the drawings and embodiments.
[0018] Please refer to Figs. 1-2 wherein, Fig. 1 The energy low-energy-consumption migration type heat pump unit structure schematic diagram provided by the application; Fig. 2 The energy migration device operation principle diagram provided by the application.
[0019] In the specific implementation process, as Figs. 1-2 shown, an energy low-energy-consumption migration type heat pump unit mainly consists of an evaporator 1, a compressor 2, a condenser 3, a throttling device 4, a fan 5 and an energy migration device 6. The evaporator 1 is responsible for absorbing heat in the outside air, the compressor 2 compresses the vaporized working medium to increase its temperature and pressure, the condenser 3 releases the heat of the high-temperature and high-pressure working medium to the carrier needing heating, the throttling device 4 reduces the pressure of the working medium so that it has the heat absorption capacity again. The fan 5 is used to guide the air flow to enhance the heat exchange effect. The energy migration device 6 is the core component of the application and is responsible for transferring the high-grade heat energy to the air inlet of the heat pump unit.
[0020] The energy migration device 6 includes an evaporation section 7, an adiabatic section 8 and a condensation section 9, and is internally provided with a liquid working medium. When the temperature of the evaporation section 7 is lower than that of the condensation section 9 and the difference exceeds the starting temperature difference of the heat pipe (generally 0.1℃), the liquid working medium in the evaporation section 7 absorbs the latent heat of vaporization to evaporate into gas and rises to the condensation section 9 under the action of pressure difference. In the condensation section 9, the gaseous working medium condenses into liquid after releasing the latent heat of vaporization and automatically falls to the evaporation section 7 under the action of gravity, forming a natural convection circulation without external power. This process brings heat from the evaporation section 7 to the condensation section 9, realizing efficient transfer of heat.
[0021] The materials of the evaporation section 7 and the condensation section 9 of the energy migration device 6 are developed and designed according to the characteristics of the energy source.
[0022] For example, when the energy source is water, the evaporation section 7 can adopt materials with good corrosion resistance and heat conduction performance; when the energy source is gas, the air permeability and temperature resistance of the materials need to be considered.
[0023] At the same time, the selection of the migration carrier (i.e. the working medium) is also crucial. The appropriate phase change working medium needs to be selected according to the characteristics such as temperature, state and moisture content to ensure that its safety index and environmental protection index meet the standards.
[0024] The working process of the heat pump unit mainly includes four steps of evaporation, compression, condensation and throttling. The specific process is as follows:
[0025] Evaporation process: The liquid working medium in the evaporator 1 absorbs heat and energy from the outside air and the heat of the energy transfer device 6 evaporation section 7, and evaporates into gas. In this process, the fan 5 guides the air flow through the surface of the evaporator 1, enhancing the heat exchange effect.
[0026] Compression process: The vaporized working medium enters the compressor 2 and is compressed into high-temperature and high-pressure gas. The compressor 2 improves the temperature and pressure of the working medium by doing work, providing conditions for the subsequent condensation process.
[0027] Condensation process: The high-temperature and high-pressure working medium enters the condenser 3, releasing heat to the carrier (such as water or air) that needs to be heated, while itself condensing into liquid. In this process, the design of the condenser 3 needs to ensure that the heat can be efficiently and uniformly transferred to the carrier.
[0028] Throttling process: The condensed liquid working medium passes through the throttling device 4 to reduce the pressure, regains the heat absorption ability, and then returns to the evaporator 1 to continue evaporation. The design of the throttling device 4 needs to accurately control the flow and pressure of the working medium to ensure the stable operation of the heat pump unit.
[0029] To achieve efficient and stable operation of the product, the heat pump unit is equipped with specific automatic control logic.
[0030] The specific control strategy is as follows:
[0031] Temperature monitoring and adjustment: Temperature sensors are installed at key positions of the heat pump unit (such as the inlet and outlet of the evaporator 1, the inlet and outlet of the condenser 3, etc.) to monitor temperature changes in real time.
[0032] According to the temperature monitoring results, automatically adjust the operating frequency of the compressor 2, the speed of the fan 5, and other parameters to maintain the stable operation of the heat pump unit.
[0033] Energy transfer control: According to the ambient temperature and the heating demand of the heat pump unit, automatically adjust the working state of the energy transfer device 6.
[0034] For example, in low-temperature environments, increase the heat transfer capacity of the energy transfer device 6; in high-temperature environments, appropriately reduce its working intensity to save energy.
[0035] Fault diagnosis and protection: Set up a fault diagnosis system to monitor the operating state of the heat pump unit in real time.
[0036] Once a fault or abnormal condition is found (such as compressor 2 overload, working medium leakage, etc.), immediately start the protection measures and alarm to prompt the user to handle it.
[0037] The high-grade heat energy is transferred to the inlet air of the heat pump unit through the energy migrator 6, the high-enthalpy heat air discharged by the indoor fresh air replacement and the heat energy in the wastewater discharged in life are effectively utilized, and the waste of energy is avoided.
[0038] The introduction of the energy migrator 6 significantly improves the heating capacity of the heat pump unit in a low-temperature environment. Experimental data show that in an environment below 2 DEG C, the total energy efficiency of the heat pump unit can be increased by 30%, and the heating capacity can be increased by 50% at most. This performance improvement makes it possible to apply the heat pump unit in cold regions, thereby widening its market range.
[0039] Due to the preheating effect of the energy migrator 6 on the inlet air, the heat pump unit is not prone to frosting in a low-temperature environment, and frost-free operation is realized. This avoids problems such as the decrease of heat exchange efficiency and damage of the unit caused by frosting, and prolongs the service life of the heat pump unit. At the same time, frost-free operation also reduces the maintenance cost and time input of the user.
[0040] The present application uses clean, environmentally friendly and renewable energy for heating.
[0041] Its production environment is clean and pollution-free, ensuring the health of the workers.
[0042] At the same time, the popularization and application of the present application help to reduce the dependence on traditional energy and environmental pollution problems, and promote the sustainable development of the field of heating, ventilation and air conditioning.
[0043] Compared with similar products, the present application is more cost-effective.
[0044] Through the introduction of the energy migrator 6 and the improvement of the performance of the heat pump unit, the energy consumption and operating cost can be significantly reduced during use.
[0045] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application, any equivalent structure or equivalent flow transformation made by using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A heat pump unit with low energy consumption migration, characterized in that: The invention comprises an evaporator (1), a compressor (2), a condenser (3), a throttling device (4), a fan (5) and an energy migrator (6); the energy migrator (6) comprises an evaporation section (7), an insulation section (8) and a condensation section (9); a liquid working medium is arranged in the energy migrator (6); the evaporator (1) is arranged on the side of the energy migrator (6) close to the condensation section (9); the fan (5) is arranged on the side of the evaporator (1) away from the energy migrator (6); a compressor (2) is arranged between the air outlet of the evaporator (1) and the air inlet of the condenser (3); and a throttling device (4) is arranged between the liquid inlet end of the evaporator (1) and the liquid outlet end of the condenser (3).
2. The low energy consumption transfer heat pump unit according to claim 1, characterized in that: When the temperature of the evaporation section (7) of the energy migrating device (6) is lower than the temperature of the condensation section (9) and the difference exceeds the starting temperature difference of the heat pipe, the liquid working medium in the evaporation section (7) absorbs the latent heat of vaporization and evaporates into gas, and rises to the condensation section (9) under the action of the pressure difference, releases the latent heat of vaporization and condenses into liquid, and then automatically falls to the evaporation section (7) under the action of gravity, forming a natural convection cycle without external power, and bringing heat from the evaporation section (7) to the condensation section (9).
3. The low energy consumption transfer heat pump unit according to claim 2, characterized in that: The energy migrator (6) is used to transfer high-grade thermal energy to the inlet air of the heat pump unit to preheat the inlet air and improve the heating capacity of the heat pump unit at low ambient temperature.
4. The low energy consumption transfer heat pump unit according to claim 3, characterized in that: The heat pump unit transfers heat in the air and waste heat from the outside to a place requiring heating through a thermodynamic circulation process of a liquid working medium between an evaporator (1), a compressor (2), a condenser (3) and a throttling device (4).
5. The low energy consumption transfer heat pump unit according to claim 4, characterized in that: The thermodynamic cycle process is as follows: the evaporator (1) allows the liquid working medium to continuously evaporate, the vaporized liquid working medium is compressed by the compressor (2), and then condensed by the condenser (3), releasing heat to the carrier that needs to be heated, and the working medium is then reduced in pressure by the throttling device (4) and then enters the evaporator (1) for thermodynamic circulation, thereby fully transferring the heat in the air and the waste heat from the outside to the place that needs to be heated.