Fourth kind thermal-driving compression-absorption type heat pump

Abstract

The invention provides a fourth kind thermal-driving compression-absorption type heat pump and belongs to the technical field of heat pumps and waste heat utilization. A solution loop is formed by 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. The generator sequentially communicates with a compressor, a high-temperature heat exchanger, an expansion machine and a condenser through a refrigerant steam channel. The second generator communicates with the second absorber through the refrigerant steam channel. The condenser communicates with the evaporator through a refrigerant liquid pipeline by means of the second generator and a throttling valve. The evaporator communicates with the absorber through the refrigerant steam 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 communicates with the outside through a cooling medium channel. The evaporator communicates with the outside through a low-temperature heat medium channel. The expansion machine is connected with the compressor and used for transferring power. Thus, the fourth kind thermal-driving compression-absorption type 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, 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 uses high-temperature heat load to drive heat supply or cooling; affected by the nature of the working medium (solution and ref...

AI Technical Summary

Problems solved by technology

[0003] Thermal energy (temperature difference) utilization technology represented by absorption heat pump technology uses high-temperature heat load to drive heat supply or cooling; affected by the nature of the working medium (solution and refrigerant medium), high-temperature heat load cannot be reasonably applied to absorption In the heat pump process, its application field and application range are greatly limited; it is also unable to take advantage of the large latent heat of refrigerant vapor in absorption heat pump technology

[0004] The 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 for this type of compression heat pump to realize the reasonable utilization of heat energy

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

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