The fourth type of thermally driven compression-absorption heat pump

Abstract

The invention provides a type-IV thermally driven compression-absorption heat pump and belongs to the technical field of power and heat pumps. An absorber, a second absorber, a generator, a second generator, a solution pump, a second solution pump, a solution heat exchanger and a second solution heat exchanger form a solution circuit. The generator communicates with a condenser through a refrigerant steam channel. The condenser communicates with the second generator, a throttling valve and an evaporator through refrigerant liquid pipelines, and communicates with a high-temperature heat exchanger, an expansion machine, a second condenser, a second refrigerant liquid pump and the evaporator through a refrigerant liquid pump. The evaporator communicates with the absorber through a refrigerant steam channel. The outside communicates with a compressor, the evaporator and a second expansion machine through a low-temperature heat medium channel. The generator and the high-temperature heat exchanger communicate with the outside through a high-temperature heat medium channel. The absorber and the condenser communicate with the outside through a heated medium channel. The second absorber and the second condenser communicate with the outside through a cooling medium channel. The expansion machine and the second expansion machine are connected with the compressor and transmit power, so that the type-IV thermally driven compression-absorption heat pump is formed.

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, we will face many constraints - the type, grade and quantity of energy, the type, grade and quantity of user needs, the type of working medium, the process, structure and manufacturing cost of equipment, and the operation of equipment. safety, ambient temperature and environmental acceptability, etc. [0003] Thermal energy (temperature difference) utilization technology represented by absorption heat pump technology uses high-temperature heat load to drive to realize heating or cooling; af...

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Problems solved by technology

[0003] Thermal energy (temperature difference) utilization technology represented by absorption heat pump technology uses high-temperature heat load to drive to realize heating or cooling; affected by the nature of the working medium (solution and refrigerant medium), the high-temperature heat load at too high temperature or too low The low-temperature heat load of temperature is often not reasonably applied to the absorption heat pump process, resulting in a relatively limited application field and application range

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