Heat pump uses inverse Carnot principle to absorb a lot of low-temperature heat energy in the air with little electric energy, which is converted into high-temperature heat energy by compressor compression and sent to water tank to heat hot water, so it has the advantages of low energy consumption, high efficiency, high speed, good safety, strong environmental protection and continuous supply of hot water. As a hot water system, it has unparalleled advantages.
His team should use air and electricity.
Question 2: What is the difference between air energy water heater and air energy heat pump? Heat pump water heater and air energy water heater are the same, but the names are different. Heat pump is a device that transfers heat energy from low-temperature heat source to high-temperature heat source. And it is not only a water heater, but also can replace air conditioning and heating. For example, Changfeng Taihe in China is making a series of air energy heat pumps.
Question 3: What does air energy water heater mean? Is it different from ordinary electric water heaters? The working principle of gas-fired energy water heater is "Inverse Carnot" principle, that is, the "outdoor unit" compresses the air like a pump to raise the air temperature, and then conducts the heat to the indoor water storage tank through a liquid boiling at-17℃, and then releases the heat to the water. Using the working principle of heat pump to heat is contrary to air conditioning refrigeration-the national refrigeration standard is 1000 watt, and the electric refrigeration is 2800 watt. According to the principle of heat balance, at least 2800 watts of heat is generated at the same time, and the actual heat generated is 3000-4000 watts with 0,000 watts of power input. When the heat is delivered to the insulated water tank, the power consumption is only one quarter of that of the electric water heater (even if the thermal efficiency of the electric water heater is 1 1,000%, the input of 1 1,000 watts is only 1 1,000 watts). Air energy water heaters do not need sunlight, and can be placed at home or outdoors. It is difficult to produce hot water immediately after the water stored in the solar water heater is used up. If the electric heating takes a long time, and the air energy water heater can run under pressure for 24 hours as long as there is air and the temperature is above zero degrees Celsius. In this way, even if one box of water is used up, another box of hot water will be produced in an hour or so. At the same time, it can fundamentally eliminate the potential safety hazards such as electric water heater leakage, dry burning, harmful gas generated when gas water heater is used, overcome the shortcomings of solar water heater that it can not be used in rainy days and is inconvenient to install, and has many advantages such as high safety, high energy saving, long service life and no toxic gas emission. The service life of air energy water heaters can generally reach 15 to 20 years.
Question 4: What is an air source heat pump? What does energy saving mainly mean? Basic Problems of Tsinghua Tongfang Air Source Heat Pump Water Heater
Central heat pump water heater is a new generation of hot water device after gas water heater, electric water heater and solar water heater, and it is a hot water supply equipment that can replace boilers. The heat pump water heater absorbs heat and solar energy in the air. It combines the advantages of electric water heater and solar water heater, and is a safe, energy-saving and environmental-friendly water heater. It can be operated all day 365 days a year and is a national key promotion project.
The familiar "pump" is a kind of mechanical equipment that can improve potential energy. For example, a water pump is mainly used to raise the water level or water pressure, and a "heat pump" is a kind of equipment that can obtain low-grade heat from air, water or soil in nature and output high-grade heat for people to use through electric work. It is an energy-saving, environment-friendly and clean heating and hot water equipment. Heat pump technology is a new energy technology that has attracted worldwide attention in recent years.
First, how to understand "heat pump"?
For a simple example, a car can transport several tons of goods from one place to another with several liters of gasoline. The heat pump unit can absorb heat from nature, and obtain the heat energy needed for production and life through the "handling" of the heat pump (electric power does work to drive the heat pump).
Second, how many kinds of heat pumps are there?
According to different heat sources, heat pumps can be divided into air source heat pumps, water source heat pumps and ground source heat pumps.
3. Is the heat pump water heater a solar product?
Broadly speaking, yes, but there are essential differences between heat pump units and conventional solar products, mainly reflected in the different working principles: conventional solar products must rely on direct sunlight or radiation to achieve heating effect, while heat pump units mainly absorb heat energy in the environment to achieve heating effect.
4. According to what principle does the heat pump unit collect heat?
There is a special heat-absorbing medium-refrigerant in the heat pump unit equipment, which is below MINUS 20℃ in liquid state and has a temperature difference with the outside temperature. Therefore, the refrigerant can absorb external heat energy, evaporate and vaporize in the evaporator, increase the temperature of the refrigerant through the operation of the compressor in the heat pump unit, and then convert the refrigerant from the vaporized state to the liquefied state through the condenser. During the conversion process, a large amount of heat is released and transferred to the reserve water in the water tank, thus increasing the water temperature.
5. There is a heat exchanger in the heat pump unit. Is it necessary to use electricity during operation?
Electricity is needed, but electricity is only used to drive the heat pump to absorb heat from the external environment and release heat energy to heat hot water, instead of directly heating water like conventional electric water heaters, so the electricity consumption is very small.
6. What are the advantages of heat pump units compared with other heating methods?
The heat supply of heat pump unit is mainly reflected in: high efficiency, energy saving, environmental protection and safety. No flammable and explosive gas, no electric drive components, absolutely safe; No waste gas, waste water and waste residue are discharged, which is absolutely environmentally friendly. The average annual operating costs of heat pump units are only 1/4 for direct electric heating, 1/3 ~ 1/2 for oil-gas heating and1/0/.5 for conventional solar energy.
7. What is the initial investment and payback period?
The initial investment of heat pump unit will be slightly higher than that of oil-fired and gas-fired boilers, but due to its special energy-saving effect, the cost can be recovered by energy-saving methods within one and a half years. The service life of boilers and other heating methods is generally only five years, while the service life of heat pump units can be as long as fifteen years.
8. What is the power consumption of air energy heat pump unit?
Generally, the thermal efficiency of air energy heat pump unit is 300%-500%. Based on the temperature rise of 40℃, it takes about 9- 15 degrees to produce one ton of hot water. Ordinary electric heating method needs to consume 52 kwh of electricity.
9. Is the use and operation of air energy heat pump water heater simple?
It is very simple to use. The whole unit adopts automatic intelligent control system. Users only need to turn on the power when using it for the first time, and fully realize automatic operation in the later use process. When the water temperature reaches the water temperature specified by the user, the system will automatically start running when it is lower than the water temperature specified by the user, so as to completely realize 24-hour hot water without waiting.
X can the heat pump unit operate normally when the temperature is low in winter?
Of course, the air energy heat pump hot water unit has intelligent defrosting function, which ensures the stable operation of the unit in low temperature environment. According to the comprehensive intelligent judgment of outdoor environment temperature, evaporator fin temperature, unit running time and other parameters, it can automatically enter the unit ...
Question 5: What is the main use of air energy? "Air energy", which is often said now, is the abbreviation of a product. In fact, it refers to air energy water heaters, also known as air energy water heaters, air source water heaters, air source heat pump water heaters, air source heat pump water heaters, and heat pump water heaters. Please refer to: air energy water heater, energy-saving water heater, central water heater. This new type of water heater consists of a heat pump host similar to the outdoor unit of an air conditioner and a large-capacity pressure-bearing thermal insulation water tank. Its installation is not limited by buildings or floors, and its use is not limited by climatic conditions. It can be used as a hot water supply center for families or as a centralized hot water supply for units. Due to the adoption of new patented technology in all aspects of the environment, this product is not only safe and comfortable, but also environmentally friendly and energy-saving. The actual usage fee is only equivalent to 1/4 of electric water heater and 1/3 of gas water heater. To heat the water in the 150 liter water tank to 65℃, it takes 2 kwh of electricity in spring and autumn. If the low electricity price is adopted, only 0.6 yuan money is needed, and the hot water stored in this water tank is enough for a family. If you take a bath with a faucet, the water heater can continuously supply hot water. Experienced users can set the hot water temperature at 45℃, and the operation of the water heater will be more energy-saving! Air energy is a kind of low-grade energy that exists widely, is given equally and can be used freely. After the energy level is improved by heat pump circulation, it can be used to heat domestic hot water. Because one electric energy can absorb three parts of air energy and supply four parts of heat energy to heat the hot water system, it is a new energy-saving and environmental protection technology with great development and application potential and great practical value. In addition, the air energy heat pump water heater fundamentally eliminates the potential safety hazards such as electric water heater leakage, dry burning, harmful gas generated when gas water heater works, overcomes the shortcoming that solar water heater can not work in rainy days, and has many advantages such as high efficiency, energy saving, safety and environmental protection, all-weather operation, convenient use and so on. In line with the strategic policy of sustainable development of energy, society and environment in China, it will become the most competitive new generation water heater product in China, providing safe, convenient and cheap sanitary hot water for urban and rural residents. How does the air (heat pump) water heater work? Through the operation of the compressor system, the heat in the air is absorbed to make hot water. The specific process is: the compressor compresses the refrigerant, and the compressed refrigerant with increased temperature passes through the condenser in the water tank to make hot water. The refrigerant after heat exchange returns to the compressor for the next cycle. In this process, the heat of the air is absorbed by the evaporator and introduced into the water to produce hot water. This new generation of water heater heated by compressor air is air (heat pump) water heater. Air (heat pump) water heater is just such a product. This is the working principle of air (heat pump) water heater. When the air energy heat pump is running, the evaporator absorbs heat from the environmental heat energy in the air and evaporates the heat transfer working medium. After the working medium steam is compressed by the compressor, the pressure and temperature rise. When the high-temperature steam is condensed into liquid by a special annular tube condenser permanently bonded to the outer surface of the water storage tank, the released heat is transferred to the water in the water storage tank of the air source heat pump. The condensed heat transfer working medium returns to the evaporator through the expansion valve, and then is evaporated, and so on. The heat transfer working medium of air source heat pump is a special substance, whose boiling point is -40℃ and freezing point is below-100℃ under normal pressure. This substance is liquid when it is cold, but it easily evaporates into gas, and vice versa. In actual operation, the evaporation limit temperature of heat transfer medium in air source heat pump is about -20℃, so the ambient temperature of 5℃ is "hot" for such a low temperature, even the snowy temperature, such as 0℃, is hot by comparison, so some heat energy can still be exchanged. Edit the characteristics of air energy in this paragraph. What are the advantages of air (heat pump) water heaters? "Safety+saving money+comfort+environmental protection": 1. Safety: no gas is used, no waste gas will be generated, and "gas poisoning" will not occur; There is no need to use an electric heating rod for heating, so there is no danger of electric leakage, which protects the health and safety of family members. Air energy 2, saving money: COP value greater than 3, high energy efficiency ratio, absolutely saving electricity and money. It can save 2/3~3/4 of the electricity fee, or 1/2~2/3 of the gas fee and the auxiliary heating fee of the solar water heater. 3. Comfort: patented technology-indirect over-current heating, automatic constant temperature and constant pressure water supply, and hot water is never cold or cold. & gt
Question 6: Air energy heat pump, what do you usually do? At present, the most widely used air energy heat pump in the market is used for making hot water, heating and refrigeration. Of course, there are other functions, such as dehumidification, but mainly the above three. Air energy water heaters (household) are popular in the southern market now, and the north has just begun. Commercialization is common in both north and south. Hotels, hotels, enterprises and institutions, schools, military units and other places that need these functions are very common.
Question 7: What does air energy water heater mean? Generally speaking, an air energy water heater absorbs heat energy from the air to heat cold water to 55℃ hot water (the highest temperature is 60℃).
According to the principle:
The air energy heat pump unit uses the inverse Carnot principle and the physical characteristics of the working medium to make the working medium pass through the compressor to generate a physical phase change (gas-liquid-gas), and the absorption device absorbs the low-temperature heat source (absorbing the heat in the air, which is an air source heat pump; Absorb heat from the soil. Ground source heat pump; Absorb heat from water source, which is a water source heat pump). In winter, heat is continuously released into the room through heat exchange, which heats up the indoor environment; In summer, the indoor environment is cooled by the continuous release of cold energy through the heat exchanger. The electric energy conversion rate can reach more than 400%.
Question 8: What is the working principle of air source heat pump? Air source heat pump, also known as heat pump water heater, absorbs air heat source through heat pump to make hot water. Its energy-saving efficiency is more than four times that of electric water heaters, and even more energy-saving than solar water heaters. It is the most advanced energy-saving and environment-friendly hot water system in the world.
principle of operation
The heat pump uses the inverse Carnot principle to absorb a lot of low-temperature heat energy in the air with very little electric energy, which is converted into high-temperature heat energy through the compression of the compressor and sent to the water tank to heat hot water, so it has the advantages of low energy consumption, high efficiency, high speed, good safety, strong environmental protection and continuous supply of hot water. The working principle diagram of air source heat pump is hot water system, which has incomparable advantages. The heat pump hot water unit follows the law of conservation of energy and the second law of thermodynamics. Using the principle of heat pump, only a small part of mechanical work (electric energy) is needed to transfer heat in low temperature environment (atmosphere or groundwater, etc.). ) add it to a water heater in a high temperature environment to make high temperature hot water. A heat pump can be compared with a water pump. Water cannot spontaneously flow from a low place to a high place. To transport water from a low place to a high place, a part of electricity must be consumed by a water pump before it can be sent to a high water tank. Similarly, according to the second law of thermodynamics, heat cannot be spontaneously transferred (transferred) from a low temperature environment to a high temperature environment. In order to achieve this goal, some mechanical work (such as electric energy) must be consumed by machines in order to transfer heat from low temperature environment to high temperature environment. This kind of machine is called "heat pump". The function of heat pump is to take out the heat from air or low-temperature water, and send it to high-temperature environment for application together with the heat energy converted from electric energy used by itself.
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Question 9: What does P mean in air source heat pump? What they are talking about is not power, but heating capacity, which is the same as cooling capacity. 1 is equal to 2.3 ~ 2.5 kilowatts.
Question 10: What is air energy? Air energy can be summarized as energy contained in air, that is, low-grade heat energy contained in air, also known as air source.
"Air energy", which is often said now, is the abbreviation of a product. In fact, Fa refers to air energy water heater, also known as air energy water heater, air source water heater, air source heat pump water heater, air source heat pump water heater and heat pump water heater.