First-class compression-injection-absorption heat pump

CN121855092APending Publication Date: 2026-04-14李华玉
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing steam jet and absorption cooling/heat pump technologies have shortcomings in terms of driving efficiency and heating temperature, and the properties of the working fluid limit their operating range, making it difficult to achieve efficient and low-cost cooling/heating and combined cooling and heating.

Method used

A first-class compression-ejection-absorption heat pump was designed. By introducing components such as a regenerator, a second compressor, a solution pump, and multiple heat exchangers into a conventional heat pump, the process and structure were optimized to form various variants, thereby improving efficiency and expanding the parameter range.

Benefits of technology

This invention achieves a heat pump system with a reasonable process, simple structure, low cost, and reasonable performance index, improving drive efficiency and heating temperature, expanding the range of operating parameters, and meeting a variety of application needs.

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Abstract

The invention provides a first-class compression-injection-absorption heat pump, and belongs to the technical field of refrigeration and heat pumps. The absorber is provided with a dilute solution pipeline which is communicated with the generator through a solution pump and a solution heat exchanger, the generator is further provided with a concentrated solution pipeline which is communicated with the absorber through the solution heat exchanger, the generator is further provided with a refrigerant steam channel which is communicated with the compressor, and the compressor is further provided with a refrigerant steam channel which is communicated with the expansion machine through a high-temperature heat exchanger. The expansion machine further comprises a refrigerant steam channel which is divided into two paths, the first path is communicated with the condenser, the second path is communicated with a high-pressure steam opening of the ejector, the condenser further comprises a refrigerant liquid pipeline which is communicated with the evaporator through a throttling valve, the evaporator further comprises a refrigerant steam channel which is communicated with a low-pressure steam opening of the ejector, and the ejector further comprises a medium-pressure refrigerant steam channel which is communicated with the absorber. The high-temperature heat exchanger and the generator are communicated with the outside through high-temperature heat medium channels, the absorber and the condenser are communicated with the outside through heated medium channels, the evaporator is communicated with the outside through a low-temperature heat medium channel, and the first-class compression-injection-absorption heat pump is formed.
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