Open type two-way thermal circulation and second-class thermal driving compression heat pump

Abstract

The invention provides open type two-way thermal circulation and a second-class thermal driving compression heat pump, and belongs to the technical field of heat energy utilization and heat pumps. A pressure reducing process 12 from high temperature of a heated medium, a heat source heat sucking process 23 from medium temperature, a pressure reducing process 34 from medium temperature, a heat releasing process 45 to a low-temperature heat source and a pressure increasing process 56 from low temperature form the open type two-way thermal circulation; the external communicates with an expander by a heated medium channel; the expander also communicates with a second expander through a heated medium channel by a heat exchanger; the second expander communicates with a compressor through a heated medium channel by a cooler; the compressor communicates with the external through a heated medium channel; the heat exchanger communicates with the external through a medium-temperature heat medium channel; the cooler communicates with the external through a cooling medium channel; and the expander and the second expander are connected with the compressor for transmitting power to form the second-class thermal driving compression heat pump.

Description

Technical field: [0001] The invention belongs to the technical field of power, heat supply and heat pump. Background technique: [0002] Heat demand and power demand are common in human life and production. The higher the temperature of thermal energy, the higher the possibility of its utilization and the more convenient it is to utilize. In reality, for the heat load with lower temperature, people need to adopt the necessary technology to raise its temperature. In the process of achieving the above goals, there will be many considerations or constraints, including the type, grade and quantity of energy, the type, grade and quantity of user needs, ambient temperature, type of working medium, equipment flow, structure and Manufacturing costs and more. [0003] The heat energy (temperature difference) utilization technology represented by absorption heat pump technology uses the temperature difference between the heat load and the cold environment to increase the temperatur...

AI Technical Summary

Problems solved by technology

[0003] The heat energy (temperature difference) utilization technology represented by absorption heat pump technology uses the temperature difference between the heat load and the cold environment to increase the temperature of part of the heat load; however, due to the nature of the working medium (solution and refrigerant medium), It is also impossible to realize the conversion of thermal energy to mechanical energy while supplying heat, and its application field and application range are greatly limited.

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