Air energy heat pump water heater is also called air source heat pump water heater, heat pump water heater and air energy water heater. The heat pump in the air energy heat pump water heater (air source heat pump water heater) can absorb the low-temperature heat energy in the air, convert it into high-temperature heat energy after compression by the compressor, and heat the water temperature. This kind of water heater (air source heat pump water heater) has the characteristics of high efficiency and energy saving, and its power consumption is 1/4 of that of electric water heaters with the same capacity and 1/3 of that of gas water heaters. The initial investment of air energy heat pump water heater (air source heat pump water heater) is three to five times that of gas, natural gas and electric water heaters, but the daily operation cost is low.
catalogue
Principle of air energy heat pump water heater
History of heat pump technology
Characteristics of air energy heat pump water heater;
Air energy heat pump water heater maintenance
Advantages of air energy heat pump water heater products;
Disadvantages of air energy heat pump water heater products;
Edit the principle of air energy heat pump water heater in this paragraph.
Air energy heat pump water heater, also known as air source heat pump water heater, heat pump water heater and air energy water heater, is essentially a thermal booster. The function of heat pump is to absorb heat from the surrounding environment and transfer it to the heated object.
(object with higher temperature), its working principle is the same as that of refrigerator, which works according to the inverse Carnot cycle, but the difference is that the working temperature range is different. A compression heat pump device mainly consists of an evaporator, a compressor, a condenser and an expansion valve. By continuously completing the thermodynamic cycle process of evaporation (absorbing heat in the environment) → compression → condensation (releasing heat) → throttling → re-evaporation, the heat in the environment is transferred to water supply. When the heat pump works, the energy QA stored in the environmental medium is absorbed by the evaporator; It consumes a part of energy itself, that is, the compressor consumes QB; Through the refrigerant circulation system, heat is released in the condenser, QC=QA QB, from which it can be seen that the energy output by the heat pump is the work QB done by the compressor and the heat QA absorbed by the heat pump from the environment; Therefore, the use of heat pump technology can save a lot of electricity.
Edit this history of heat pump technology.
With the development of industrial revolution, at the beginning of19th century, people began to be interested in whether heat can be "pumped" from a lower temperature medium to a higher temperature medium. The British physicist J.P. Joule put forward a principle that the temperature of a compressed fluid can be changed by changing its pressure. 1854, Professor W.Thomson (Lord Kelvin) published a paper, put forward the concept of heat multiplier and described the idea of heat pump for the first time. At that time, the object of heat pump heating was mainly civil, and the total heating demand was small, especially the heating mode and its impact on the environment. People mainly use coal and wood for heating, so the development of heat pump obviously lags behind the development of air conditioning for a long time. In 1930s, with the development of Freon refrigerator, heat pump developed rapidly. Especially after World War II, the rapid development of industrial economy brought a large demand for heating and a relative shortage of energy, which promoted the development of large-scale heating and industrial heat pumps. 1973 The global energy crisis has further promoted the development of heat pumps around the world. However, the large-scale commercial application of heat pump in the world is in the last 20 years. Take the United States as an example. As of 1985, there were 14000 ground source heat pumps in China, while 1997 installed 45,000 sets, and 400,000 sets have been installed so far, with an annual rate of 654,300 sets. China's heat pump industry only started in recent years, and its development momentum is promising. At present, water source heat pump is widely used in China, while the production of domestic hot water by air source heat pump has just started in China in recent two years.
Edit the characteristics of air energy heat pump water heater in this paragraph:
1. safety: water is boiled with air, and water and electricity are completely separated, with multiple protections and no hidden dangers. Picture of air energy water heater
2. Energy saving: a small amount of electric energy is used to transport the heat energy in the air to the water for heating, and the energy consumption is1/5 of that of the electric water heater; Gas water heater1/6; Oil water heater1/4; 2/3 of ordinary solar energy; And can achieve more energy-saving effect by using low-valley electricity. 3. Environmental protection: It has passed the "green energy-saving product" approved by the National Energy Conservation Association, which does not pollute the environment and has low operating noise. Using the most advanced "cereal wheel" control system in the United States and the humanized design of our company, it has the memory function. After power failure, it can automatically recover, operate at temperature control, control time, and plug in the power supply, so it can generate a steady stream of hot water, and everything is worry-free. 4, automatic cleaning: Song Ge SGNT heat pump water heater is different, automatic descaling, ensure the heat pump water tank clean, maintain thermal efficiency, prolong service life. 5. Not affected by the environment: it is an all-weather hot water supply system. No matter whether it is cloudy, rainy, spring, summer, autumn and winter, day and night, as long as there is air, there is hot water, and the low-temperature heat energy of-10℃ ~ 30℃ can be converted into hot water of about 60℃ by the action of heat pump unit. 6. Long service life: Song Ge SGNT air energy heat pump water heater adopts world-advanced scroll compressor and double-slot hydrophilic aluminum radiator to effectively prevent acid rain from corroding the main engine. 7. Multifunctional: "Air source heat pump water heater" has multiple functions of hot water, air conditioning and heating, and is a typical energy-saving hot water refrigeration equipment.
Edit this paragraph air energy heat pump water heater maintenance
1. Air energy heat pump water heater is a highly automated equipment. When in use, the condition of the device will be checked regularly. If the unit can be effectively maintained for a long time, the operation reliability and service life of the unit will be unexpectedly improved. 2. The waterway filter installed outside the machine should be cleaned regularly to ensure that the water quality in the system is clean, so as to avoid damaging the host due to the dirty filter. 3. Users should pay attention when using and maintaining the heat pump unit: all safety protection devices in the unit are set before leaving the factory, and do not disassemble or adjust them by themselves. 4. The air energy heat pump water heater should always check whether the wiring of the power supply and electrical system of the unit is firm and whether the electrical components are abnormal. If there is, it should be repaired and replaced in time. 5. Always check whether the make-up water, water tank safety valve, liquid level controller and exhaust device of the water system are working normally, so as to avoid the reduction of water circulation caused by air entering the system, thus affecting the heating capacity of the unit and the reliability of the unit operation. 6. Check whether the water pump and waterway valve are working normally, and whether the water pipeline and water pipe joint are leaking. 7. Around the unit should be kept clean, dry and well ventilated. Clean the air side heat exchanger every year to maintain good heat exchange effect. 8. Regularly check the working conditions of each part of the unit, check whether there is oil pollution in the pipeline joints and charging valves in the machine, and ensure that there is no refrigerant leakage in the unit. 9. Please don't pile up sundries around the unit to avoid blocking the air inlet and air outlet. The device should be kept clean, dry and well ventilated. 10. If the downtime is long, the water in the pipeline of the unit should be discharged, and the power supply should be cut off and a protective cover should be set. When running again, conduct a comprehensive inspection of the system before starting. 1 1. When the actual outlet temperature of the air source heat pump water heater is inconsistent with the value displayed on the control panel of the unit, please check whether the temperature sensing device is in good contact. 12. When the unit fails and the user can't solve it, please report it to the after-sales service department in time and inform the fault code so as to send someone to repair it in time. 13. Clean the condenser of the main engine. We suggest to clean the condenser with hot phosphoric acid solution with the concentration of 15% at 50℃-60℃ every two years, start the circulating water pump of the main engine for 3 hours, and finally clean it with tap water for 3 times. In case of taking over during cleaning. It is forbidden to clean the condenser with corrosive cleaning solution. 14. The water tank needs to be cleaned of scale after a period of use (usually 3 months, depending on the local water quality).
Edit the product advantages of air energy heat pump water heater in this paragraph:
1. In terms of investment: if the same water supply effect is achieved, the investment of heat pump hot water unit is less than that of conventional solar products, so it can use economical electric energy as hot water reserve with low power consumption. 2. In terms of use, conventional solar products are obviously affected by the weather, so they can't work in rainy days, snowy days and nights, while heat pump hot water units can work as usual in cloudy days, rainy days, snowy days, nights or sunny days, providing hot water all day. 3. From the operating cost, the conventional solar energy runs almost at zero cost under direct sunlight, but it is a pity that it can only rely on auxiliary systems in rainy and snowy days or at night. Statistics show that under the same water supply, the annual power consumption of conventional solar auxiliary system is basically the same as that of heat pump unit. 4. Other functions: the use of heat pump unit is not limited by location, and it can be placed anywhere, occupying a small space, while conventional solar energy needs to occupy a lot of space and must be placed in the open air to achieve the same heating effect; Heat pump unit can produce cold air while making hot water, which is used for dehumidification, refrigeration, air filtration and other auxiliary functions.
Edit this paragraph air energy heat pump water heater product shortcomings:
1, slow heating speed: air source heat pump products adopt compressor compression heating mode, which is relatively slow compared with boiler or electric direct heating mode; 2. Large one-time investment: the larger the use place, the greater the input cost; 3. The heating water temperature is limited: the maximum outlet temperature of air source heat pump is 60℃. 4. Affected by extreme weather: At present, the applicable temperature range of conventional air energy heat pump water heaters is -5℃ ~ 43℃. Therefore, the market of heat pump is mainly in the south of the Yangtze River and its vicinity. Supplement: 1. Installation of heat pump water heater. At present, the mainstream products of domestic small air source heat pump water heaters on the market are very large, which are only suitable for installation on the ground and roof, and consumers on other floors can only install them on the balcony. However, with the improvement of people's requirements for home environment, consumers are unwilling to accept the huge fire on the balcony. 2. Consumers' cognition of heat pump water heaters. Heat pump water heater is a new thing in the domestic market, and consumers' awareness of it is still very low. Many people think that one heat can't get three heat, and so can other products related to the application of heat recovery technology, although the popularity of heat pump air conditioning is already very high. People's understanding is limited to the fact that air conditioners are big consumers of electricity, but they don't know that they are more energy-saving than briquette stoves. At present, there are no heat pump water heaters in Gome, Suning and other home appliance chain supermarkets, and the marketing mode of heat pump water heaters by manufacturers is also direct sales. The agent marketing mode of domestic household central house adjustment before PI has not changed, so it will take some time for heat pump water heaters to truly become mature commodities.