Duplex combined cycle compression heat pump

Abstract

The invention provides a dual-mass combined cycle compression heat pump, which belongs to the technical field of energy, power and heat pumps. The heat supplier is connected to the mixed evaporator through the circulating pump, the expander is connected to the mixed evaporator through the medium-temperature evaporator, the mixed evaporator is connected to the compressor and the second expander respectively, the compressor is connected to the expander through the high-temperature heat exchanger, and the heat supplier is connected to the The second circulating pump is connected to the medium temperature evaporator, the medium temperature evaporator is connected to the third expander, the second expander and the third expander are connected to the heat supplier; the second compressor is connected to the second heat supplier, and the second heat supplier is connected to the The flow valve is connected to the evaporator, and the evaporator is connected to the second compressor; the high-temperature heat exchanger and the medium-temperature evaporator have channels for heat source medium, the heater and the second heater have channels for heated medium, and the evaporator has channels for low-temperature heat medium, respectively Connected to the outside, the expander, the second expander and the third expander are connected to the compressor and the second compressor and transmit power to form a dual-mass combined cycle compression heat pump.

Description

Technical field: [0001] The invention belongs to the field of energy power and heat pump technology. 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] In the field of refrigeration or heating technology, the use of phase change media to realize temperature difference utilization is a common technical means, which has many advantages, but also has shortcomings—especially for non-high-quality f...

AI Technical Summary

Problems solved by technology

[0003] In the field of refrigeration or heating technology, the use of phase change media to realize temperature difference utilization is a common technical means, which has many advantages, but also has shortcomings—especially for non-high-quality fuels, high temperature and variable temperature heat sources, it will lead to the use of temperature difference Insufficient, low performance index or high operating pressure; in actual demand, it is also necessary to consider providing external power while heating or cooling, to consider the effective use of mechanical energy during cooling / heating, and to input energy, low temperature, etc. Adaptation range of medium and heating demand, etc.

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