The fourth type of thermally driven compression-absorption heat pump
An absorption heat pump and heat-driven technology, applied in the fields of power, refrigeration and heat pumps, can solve problems such as inability to apply, inability to develop the latent heat of refrigerant vapor, and difficulty in rational utilization of heat energy
Active Publication Date: 2019-11-12
李华玉
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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 heat supply or cooling; affected by the nature of the working medium (solution and refrigerant medium), low-temperature heat load often cannot be applied to absorption heat pumps In the 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 rational use of heat energy; the two heat pump technologies also have common shortcomings. At the same time as heating or cooling can not realize the conversion of thermal energy to mechanical energy
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[0052] The first thing to explain is that in the expression of the structure and process, it will not be repeated if it is not necessary; the obvious process will not be expressed. The present invention will be described in detail below in conjunction with the accompanying drawings and examples.
[0053] figure 1 The fourth type of thermally driven compression-absorption heat pump shown is realized as follows:
[0054] (1) Structurally, it is mainly composed of absorber, generator, condenser, evaporator, throttle valve, solution pump, solution heat exchanger, compressor, expander and second expander; absorber 1 has The dilute solution pipeline communicates with the generator 2 through the solution pump 6 and the solution heat exchanger 7, the generator 2 also has a concentrated solution pipeline communicated with the absorber 1 through the solution heat exchanger 7, and the generator 2 also has a refrigerant steam channel It communicates with the condenser 3. The condenser 3...
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The invention provides a fourth type of heat-driven compression-absorption heat pump, which belongs to the technical field of power, refrigeration and heat pumps. The absorber communicates with the generator through the solution pump and the solution heat exchanger, the generator communicates with the absorber through the solution heat exchanger, the generator communicates with the condenser through a refrigerant steam channel, and the condenser communicates with the evaporator through a throttle valve. The evaporator has a refrigerant vapor channel connected to the absorber; the external low-temperature heat medium channel communicates with the compressor, the compressor has a low-temperature heat medium channel that communicates with the expander through the condenser, and the expander has a low-temperature heat medium channel through the evaporator and the second The expander is connected, the second expander has a low-temperature heat medium channel to communicate with the outside, the generator has a high-temperature heat medium channel, the absorber and the condenser have heated medium channels to communicate with the outside, the expander and the second expander are connected to the compressor and Transmission of power forms the fourth category of heat-driven compression‑absorption heat pumps.
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 conditional constraints - 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, etc. [0003] Thermal energy (temperature difference) utilization technology represented by absorption heat pump technology uses high-temperature heat load to drive heating or cooling; affected by the nature of the working medium (solution and refriger...
Claims
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IPC IPC(8): F25B25/02
CPCF25B25/02
Inventor 李华玉
Owner 李华玉