In the Twelfth Five-Year Plan for Industrial Energy Conservation released by the State, it is clearly required that the industrial boiler furnaces be subject to the problems of low self-control, low average load, and obsolete equipment. The State Council's "Action Plan for Prevention of Atmospheric Pollution," which is the first item of Article 10 of the Atmosphere, is a comprehensive rectification of coal-fired boilers. It can be seen that the state attaches importance to the comprehensive improvement of boilers.
With the advancement of the comprehensive improvement of coal-fired boilers, efficient and clean air energy sources are expected to solve the urgent problem of coal combustion and open up new ways of energy development. It is understood that the air energy industry is green, energy-efficient, environmentally friendly, does not burn coal, does not emit exhaust gas, does not pollute the air, and does not cause haze disasters. It can be fully applied to hot water, heating, drying and other fields. It is indeed coal-fired. One of the best alternatives to the boiler. However, there are also concerns that heat pump products are low-temperature, low-energy and cannot adapt to the cold winter in the north. In this regard, the relevant experts said that although the low temperature will affect the energy efficiency of heat pump products, but in recent years with the advancement of heat pump technology, in solving the heat pump low temperature and low energy efficiency of the industry, some companies have been constantly breaking the environmental defense, by the South Progressing northwards and working at minus 25 degrees is not just a laboratory record but an example of market application.
The air energy heat pump works according to the inverse Carnot principle and the inverse Carnot cycle principle. Through the operation of the compressor system, it absorbs heat from the air to produce hot water. The specific process is: the compressor compresses the refrigerant, and the compressed refrigerant increases in temperature. After the condenser in the tank is used to make hot water, the heat exchanged refrigerant returns to the compressor for the next cycle. In this process, the air heat passes through The evaporator is absorbed into the refrigerant and the refrigerant is reintroduced into the water to generate hot water. A new generation of water heaters, which are air-heat pump water heaters, are heated by the compressor air. To put it bluntly, the outdoor unit compresses the air like an air pump to increase the air temperature, and then conducts heat through a boiling liquid at -17°C into the indoor water storage tank, and then conducts the heat release to the water.
The use of heat pump operating principle of heating, and air conditioning and refrigeration - the national standard for refrigeration is 1000 watts, electrical cooling 2800 watts. According to the principle of heat balance, at the same time generate at least 2800 watts of heat, plus the input of 1000 watts of electricity, the actual heat generated in the 3000 - 4000 watts, the heat transferred to the insulation tank, its power consumption is only four points for electric water heaters One (Even if the thermal efficiency of the electric water heater is 100%, only 1,000 watts of heat is input to the electric heater).
Under the situation where the country vigorously promotes clean energy and green building, the air energy industry will also usher in more opportunities for development.
The domestic dryer technology has been maintaining a steady state, there is no obvious development and changes. However, because the dryer is also a large energy consumer, with the increasingly tense energy in recent years, new energy-efficient dryers such as air heat heat pump dryer, automatically adjust the baking time, smart dryer control type, etc. Rapid promotion and popularization are also inevitable trends in the future development of the drying industry.
The material drying process is a huge energy-consuming process. According to statistics, the energy consumed for drying in most developed countries accounts for 7%-15% of the national total energy consumption, while the thermal efficiency is only 25%-50%. And most of the drying process, especially for heat-sensitive materials (such as food and biological materials) will affect its color, nutrition, flavor and organization. The heat pump drying technology has the advantages of low energy consumption, small environmental pollution, high drying quality and wide application range, and its excellent energy-saving effect has been proved by various domestic and foreign research institutes.
It is reported that the main principle of the high-temperature heat pump dryer used in the drying process is to use heat pump evaporator to absorb the heat energy in the outside air, or to recover the waste heat in the drying process. After the compressor work, the energy is transferred (transferred) to the drying In the box, the hot air in the drying box is heated and circulated repeatedly to absorb the moisture in the material and cool down and humidify itself. After the hot air removes moisture or condenses and removes water, the moisture in the material is discharged and finally the material is realized. Continuous drying. The air energy heat pump drying equipment has the advantages of energy saving and emission reduction, safety and environmental protection, good drying effect, high efficiency and energy saving, low operating cost, saving labor costs, wide application range, and the like.
The air-energy heat pump drying equipment system has the advantages of power saving, safety, and high heating speed. In particular, the thermal efficiency of more than 300% will be the main product in the future drying market under the current global energy shortage.
Elevator Interphone, Elevator Two Way Speaker, Elevator Interphone Design
Realever Enterprise Limited , http://www.cnelevator-parts.com