New breakthroughs in the application of heat pump technology Waste treatment is also environmentally friendly

Abstract: It is understood that the current domestic waste disposal is handled through landfill, wetland treatment, incineration and other comprehensive treatment. However, although the incineration treatment of incineration can generate electricity, the utilization rate is too low, and it is a major source of most recyclable resources. Burning it is also a waste of resources. Experts in the large air-conditioning refrigeration market believe that the most scientific treatment method is classified and integrated treatment, so that everything can be put to best use, turning waste into treasure, and maximizing the recovery of renewable resources.

In addition to conventional air conditioning, heating and hot water applications, heat pump technology can also be applied to the waste treatment process, which not only saves energy, but also reduces environmental pollution, and has broad prospects for promotion.

In the domestic garbage comprehensive treatment system, the garbage needs to be sorted for many times. At the same time, the separated waste waste liquid and waste residue are processed separately. For waste liquid, anaerobic fermentation, high-temperature aerobic fermentation, solid-liquid separation are adopted. , Evaporation of liquid material, solid material drying and other processes, can be made of high-quality organic fertilizer. Among them, anaerobic fermentation, aerobic fermentation, evaporation, evaporation, drying and other processes must all be heated, consume a lot of heat, and the evaporation and concentration process must discharge a large amount of latent heat of condensation, which requires forced cooling. Hot and humid gas, boiler operation generates a lot of high-temperature flue gas, the entire waste treatment plant there are many hot spots and production hot spots, if the reasonable heat production and hot spot combing, quantitative analysis of supply and demand of heat, heat production and heat Good matching of hot grades can reveal the great potential for comprehensive recycling of heat energy. For the hot spots with low hot spots and high hot spots, the hot spots create favorable conditions for the application of heat pumps.

A heat pump is a heating device that, at the expense of consuming a small amount of high-grade energy, can convert a large amount of useless low-temperature thermal energy into useful high-temperature thermal energy, as well as pumping a "heat pump" "pump." The heat pump's working process can be compared with the pump. According to the reporter of the Refrigeration Express, heat pumps have been developed to the present day, and heat pumps with heating temperatures (supplying the user's heat energy) below 50°C are more mature. Because the components and the working fluid are basically the same with the refrigeration equipment, the application is the most extensive. The heat pump with a heating temperature of between 50 and 100°C has gradually expanded its industrial applications and related components and working fluid systems are also being improved. The heat pump with a heating temperature greater than 100°C has many technical problems to be solved in large-scale applications, and the application field needs to be further developed.

As long as there is a need for heat energy, there is an opportunity for the application of heat pumps. The production processes of our products, food, housing, and many products around us all have a close relationship with thermal energy. From this perspective, the development space for heat pumps is unlimited.

In the integrated treatment process of domestic waste, anaerobic fermentation, aerobic fermentation, evaporation and concentration, drying and other processes must be heated, consume a lot of heat, and the evaporation and condensation process must discharge a large amount of latent heat of condensation, which requires forced cooling. The dry link produces a large amount of hot and humid gas, and the boiler flue gas generates a lot of heat. The comprehensive building, exhibition hall, and workshop office of the waste treatment plant all need central air-conditioning, winter heating and summer cooling, and the greenhouse needs heating in the winter. There is a need to supply domestic hot water throughout the day, and there are many hot spots and hot spots in the entire waste treatment plant.