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Heat pump in the living garbage treatment process application (chart)
Heat pump technology is an air conditioning, heating and hot water production technology. According to relevant industry experts, heat pump technology in addition to conventional applications, but also can be applied to the garbage treatment process, not only save energy, but also reduce the pollution of the environment, with a wide range of promotion prospects. Process Optimization and Energy Conservation and Emission Reduction According to the Scientific Outlook on Development, domestic waste is a major step forward in social civilization through classification and recycling and comprehensive treatment to achieve recycling of resources. It is one of the important links in achieving sustainable development. At present, domestic waste is usually through landfill, wetland treatment, incineration, comprehensive factory treatment and the like. Among them, landfill will pollute underground water. If wetland treatment is adopted, there are no natural conditions around the city. Although incineration can generate electricity, utilization rate Too low, burned most of the recyclable resources, but also a waste of resources. Heat pump industry experts believe that the most scientific approach is to deal with the classification, to make the best use, turning waste into treasure, to maximize the recovery of renewable resources. In the comprehensive treatment system of municipal solid waste, it is necessary to classify the garbage several times, and at the same time separate the waste liquid waste and the waste slag separately, for example, waste liquid, anaerobic fermentation, high temperature aerobic fermentation, solid-liquid separation , Liquid material evaporation concentration, solid material drying process, can be made of high quality organic fertilizer. Among them, anaerobic fermentation, aerobic fermentation, evaporation and concentration, drying and other processes, must be heated, consume a lot of heat, and evaporation and condensation must also emit large amounts of latent heat of condensation, the need for forced cooling, drying a large part of the link Hot and humid gases, boiler operation produces a large number of high-temperature flue gas, the entire waste treatment plant there are many places with hot and hot spots, if a reasonable heat and combing with hot spots on the supply and demand of heat for quantitative analysis of heat and heat Reasonable match with the hot taste, you can find a huge potential for comprehensive heat recovery. For hot hot spots low quality, high demand hot hot spots, but also for the application of heat pumps to create favorable conditions. Heat Pump Technology Applications and Energy Saving Heat pumps are a heating device that turns large amounts of useless low temperature heat into useful high temperature heat at the expense of a small amount of high grade energy, just like pumps that pump "heat energy." The working process of the heat pump can be compared with the pump. Heat pump development to this day, the heating temperature (heat temperature to the user) less than 50 ℃ heat pump has been more mature. As the basic components and refrigerant and refrigeration equipment common, the most widely used. Heat pump heating temperature between 50 ~ 100 ℃, the field of industrial applications is gradually expanding, the relevant components and working fluid system is also being improved. Heat pump temperature greater than 100 ℃, its large-scale application there are more technical problems to be solved, the application areas have yet to be exploited. As long as the need for heat energy occasions, there is a heat pump application opportunities, our basic necessities of life and many products around the production process, and heat are closely related, from this perspective, the development of heat pump space is unlimited. Review the history of the development of heat pumps, heat pump development depends mainly on the speed of the following factors. 1) Energy factors include the price of energy (parity of electricity, coal, oil, gas, etc.) and the abundance of energy. When the price of energy between different reasonable or energy stress, the heat pump has a better development environment. 2) Environmental factors When environmental protection considerations, for other heating methods (such as coal-fired heat) have strict limits, the heat pump has more application space. 3) The technical factors include improving heat pump efficiency through the improvement of heat pump circulation, components and working fluids, simplifying heat pump structure by material technology, reducing heat pump cost, using monitoring and control technology to improve the reliability of heat pump and the ease of operation and maintenance, etc., Compared with other simple heating methods have a more comprehensive competitive advantage. 4) One of the differences between low-temperature heat source heat pump and other simple heating methods is the need for low-temperature heat source. The higher the temperature of the heat source, the more advantageous to improve the performance and application advantages of the heat pump. Sometimes it is possible to have and make the low-temperature heat source and even decide the key factor of the heat pump application. Therefore, by exploiting the advanced technology in relevant fields, It is also an important factor to promote the application and development of heat pump. 5) Development of reference field At present heat pump has been applied to heating, making hot water, drying (wood, food, paper, cotton, wool, cereal, tea, etc.) While cooling and heating, etc.), planting, breeding, artificial greenhouses and other fields. Learn more about the heat in different production processes. And heat pump and process organic combination, for heat pump to expand more applications. Waste heat treatment in the comprehensive utilization of waste heat treatment strategy In the integrated treatment of municipal solid waste, anaerobic fermentation, aerobic fermentation, evaporation and concentration, drying and other processes must be heated, consume a lot of heat, and evaporation must be part of the large-scale discharge Condensation latent heat, the need for forced cooling, drying process produces a lot of hot and humid gas, boiler flue gas to produce a lot of heat, waste treatment plant complex building, showroom and workshop offices and so require central air conditioning, heating in winter, summer cooling , Greenhouses need heating in winter, factories need to supply domestic hot water throughout the day, there are many places throughout the waste treatment plant with hot and hot spots. From the above analysis we can see that heat production is intermittent, heat consumption is sustainable, there is a gap between supply and demand, matching the production and demand of good heat, the design to take the following solution: Solution: Evaporator working time is 9:30 ~ 22:00, and living hot water and Park air conditioning heating needs 24 hours a day, the solution to this problem is to build a 200m3 regulation pool, day 32 ℃ evaporative cooling water storage, when the night evaporating machine to stop running, Heat pump unit from the regulation of the pool to produce hot water for the park to use. Park air-conditioning heating by the heat pump unit from the 32 ℃ thermal storage pool heat for air-conditioned room heating, heat pump unit heat source side of the water is still discharged to regulate the pool.