The key technology in high temperature ground source heat pump applications
Relative to the output temperature below 55 ℃ heat pump technology, high-temperature ground source heat pump without increasing the temperature of low-temperature heat source (ground source), the heat pump heating temperature reached 60 ℃ above, and maintain high operating efficiency and stable operating conditions , Generally need to solve the following key technologies. The choice of working fluid: According to the maximum working pressure of high temperature heat pump equipment ≤ 25bar, using environmentally friendly R134a refrigerant as working fluid, pollution-free environment, no damaging effect on the ozone layer; Circulation system design: The use of multiple independent refrigeration cycle system, sharing a water circulation system, reducing the condensing equipment operating temperature and pressure; In the device to add a special heat exchange device (economizer), increase the stability of equipment operation; System Control Optimization: The average compressor operating time optimization control mode to ensure the long-term stability of the unit for a long time and service life, and based on the source temperature and winter heat source temperature, adjust the high-temperature heat pump operating conditions and conditions. Plasma 3D Printing Deburring Machine Plasma 3D Printing Deburring Machine,3D Printing Plasma Deburring Machines,Deburring Polishing Machine,3D Printing Deburring Machines Dongguan Bayi Automation Equipment Co., Ltd , https://www.bayipolisher.com
Compressor options: At present, the types of compressors commonly used in heat pump equipment are screw compressors, fully enclosed scroll compressors and semi-hermetic piston compressors. After comparing the operating characteristics of different types of compressors, the current high-temperature heat pump equipment is generally used Semi-closed piston compressor;