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Compression-absorption combined heat pump heating system

A technology of compression heat pump and absorption heat pump, which is applied in the field of energy saving and environmental protection, and waste heat utilization, can solve the problems of rapid decline in performance index, high temperature of waste heat resources, and limited application fields and ranges, so as to overcome the phenomenon of excessive temperature and waste heat The effect of increasing the amount of use and expanding the scope of application

Inactive Publication Date: 2006-07-19
李华玉
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Compression heat pumps and absorption heat pumps (mainly lithium bromide absorption heat pumps) are two main energy-saving equipment in waste heat utilization, but due to their own reasons, these two heat pumps have their own shortcomings in practical applications, which limits Its application field and scope cannot make better use of energy saving benefits
The shortcomings of compression heat pumps are mainly reflected in the following three points: ①The heating temperature is low and the application range is narrow; ②As the heating temperature increases, its performance index (output / input) drops rapidly; ③The driving energy is electric energy , higher operating costs
The deficiencies of absorption heat pumps are mainly reflected in three aspects: ①The waste heat at low temperature cannot be used, and the application occasions are limited; ②When the temperature of the concentrated solution in the generator is too high, it will cause the solution to corrode the equipment; ③Users need to supply When the initial temperature of heat is high, the temperature of waste heat resources needs to be correspondingly high

Method used

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  • Compression-absorption combined heat pump heating system
  • Compression-absorption combined heat pump heating system
  • Compression-absorption combined heat pump heating system

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 Shown is a compression-absorption integrated heat pump heating system that shares a condenser-evaporator. In this composite system, the condenser-evaporator 4 is placed in the absorption system II, connected to the condenser 2, and simultaneously Connect the compressor 7 and the evaporator 8 respectively, so that the evaporator 4 is not only the condenser of the compression system I, but also the evaporator of the absorption system II; the absorber 5 is connected to the solution heat exchanger 6, and the solution heat exchanger 6 is connected to Generator 1, compression system I captures waste heat, which produces heat as waste heat for absorption system II, user heat (cold fluid is heated to hot fluid) is provided by absorption system II.

[0020] figure 2 Shown is the process flow of the split step compound heat pump heati...

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Abstract

The invention relates to a compression-adsorption compound heat pump heating system, which combines the compression heat pump and the adsorption heat pump with different methods to provide a compound waste heat utilization heating system, which is belonging to the waste heat utilization, energy saving and environment protection area. The compression system and the adsorption system can use one condensation-evaporation device to form a integrated system; or they are independent to form a compound heat pump heating system; or they can form a series heating system both in waste heat utilization and heat supply; or they can form a mixed connection heating system. The invention can combine the compression and adsorption techniques to overcome the defects of them, improve the utilization degree of waste heat, enlarge the application range, expanding the temperature range, improve the safety and improve the energy saving, environment protection and economic benefit.

Description

Technical field: [0001] The invention belongs to waste heat utilization, energy saving and environmental protection technologies in the technical field of thermal energy engineering. Background technique: [0002] Compression heat pumps and absorption heat pumps (mainly lithium bromide absorption heat pumps) are two main energy-saving equipment in waste heat utilization, but due to their own reasons, these two heat pumps have their own shortcomings in practical applications, which limits Its application field and scope cannot give full play to the energy-saving benefits. The shortcomings of compression heat pumps are mainly reflected in the following three points: ①The heating temperature is low and the application range is narrow; ②As the heating temperature increases, its performance index (output / input) drops rapidly; ③The driving energy is electric energy , higher operating costs. The deficiencies of absorption heat pumps are mainly reflected in three aspects: ①The was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/00
Inventor 李华玉
Owner 李华玉
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