Bidirectional thermal cycle and first type of heat-driven compression heat pump

Abstract

The invention provides a bidirectional thermal cycle and first type of heat-driven compression heat pump, and belongs to the power, refrigeration and heat pump technology field. A bidirectional thermal cycle 1234561 comprises the steps of a working medium boost process 12 that begins from a low temperature; a heat absorption process 23 that absorbs heat from a middle temperature heat source; a boost process 34 that begins from a middle temperature; a heat release process 45 that releases heat to a high temperature heat source; a pressure reduction process 56 that begins from a high temperature; a heat absorption process 6 that absorbs heat from a low temperature heat source. A compressor has cycle working medium and is communicates with an expander through a high temperature heat exchanger; the expander has the cycle working medium channel and is communicated with a second expander through a heater; the second expander has the cycle working medium channel and is communicated with the compressor through a low temperature heat exchanger; the high temperature heat exchanger has a high temperature thermal medium channel and is communicated with the outside; the low temperature heat exchanger has a low temperature thermal medium channel and is communicated with the outside; the heater has a heated medium channel and is communicated with the outside; the expander and the second expander are connected with the compressor to transmit power to form the first type of heat-driven compression heat pump.

Description

Technical field: [0001] The invention belongs to the technical field of power, refrigeration and heat pump. Background technique: [0002] Cold demand, heat demand and power demand are common in human life and production; in reality, people often need to use high-temperature heat energy to achieve cooling, heating or conversion into power, and also need to use power for cooling or use power combined Low temperature thermal energy for heating. 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] Thermal energy (temperature difference) utilization technology represented by absorption heat pump technology utilizes high temperature heat load to drive heat supply or cooling; big limit. Compression heat pump technology, which utili...

AI Technical Summary

Problems solved by technology

[0003] Thermal energy (temperature difference) utilization technology represented by absorption heat pump technology utilizes high temperature heat load to drive heat supply or cooling; big limit

Compression heat pump technology that utilizes the grade difference between mechanical energy and thermal energy has certain flexibility, but in many cases it is difficult to achieve efficient utilization of thermal energy

At the same time, the two technologies also have a common deficiency - they cannot convert thermal energy into mechanical energy while heating or cooling

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