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Low-temperature type engine and heat regenerating method thereof

An engine and low-temperature type technology, applied in the direction of machines/engines, mechanical equipment, steam engine devices, etc., can solve the problems of low thermal efficiency and low-quality energy of engines that are difficult to use

Inactive Publication Date: 2012-06-27
雷衍章
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a low-temperature type engine with low working temperature and capable of effectively recovering the steam latent heat removed by the expander for the defects of low-grade energy sources and low thermal efficiency of the above-mentioned engines in the prior art and Its heating method

Method used

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  • Low-temperature type engine and heat regenerating method thereof
  • Low-temperature type engine and heat regenerating method thereof
  • Low-temperature type engine and heat regenerating method thereof

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Embodiment Construction

[0040] like figure 1 As shown, it is a specific embodiment of the present invention. The engine includes a refrigeration compressor 1, a refrigerant 2, an oil and gas separator 3, a start-up cooling evaporator 4, a heat recovery exchanger 5, a dry filter 6, a throttling Device 7, condensing evaporator 8, start-up system, air or water heater 10, first heater 11, expander 12, expansion working medium 13, hydraulic pump 14, final start-up valve 16 and connecting channels, etc.

[0041] The starting system includes starting compressor 9a, starting cooling refrigerant 9b, oil and gas separator 9c, oil return pipe 9d, condenser 9e, water inlet interface 9f of condenser and water outlet interface 9g of condenser, dry filter 9h and Throttle 9i; it forms a complete refrigeration circuit to provide a starting cold source for starting the engine. When starting work, it is carried out in three steps. The first step: first start the starting compressor 9a, compress the starting cooling re...

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PUM

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Abstract

The invention relates to a low-temperature type engine and a heat regenerating method thereof. In the invention, an expansion working medium discharged by an expander and a low-temperature refrigerantdischarged by a refrigerator exchanges heat by a heat exchanger, the latent heat of the expansion working medium is absorbed by the low-temperature refrigerant and liquefied, the refrigerant is gasified and expanded into latent heat after absorbing the steam latent heat of the expansion working medium, the refrigerant is compressed and heated by a compressor and delivered into a regenerating heatexchanger, the liquefied expansion working medium is also compressed into the regenerating heat exchanger after being pressurized by a hydraulic pump, the expansion working medium and the refrigerantexchange heat in the regenerating heat exchanger to realize double actions, the high-temperature heat of the refrigerant is delivered back to the expansion working medium so as to increase the temperature of the expansion working medium and reutilize the expansion working medium without causing waste discharge. After being cooled, the refrigerant refrigerates by throttling expansion or expander expansion; and because the working temperature of the engine is low and part of the heat can also be absorbed from air or water to apply expansion work, the air or water of which the heat is absorbed can be changed into low-temperature air or cold water which can be used as a cooling air-conditioner.

Description

technical field [0001] The invention relates to a heat engine, more specifically, to a composite engine of a power expansion cycle system and a refrigeration cycle system and an energy supply method thereof. Background technique [0002] With the development of industry, more and more industrial waste heat (also called low-grade energy) is discharged. This energy is not only wasted, but also causes atmospheric warming, damage and environmental pollution. How to use these energies to achieve energy saving and emission reduction has attracted worldwide attention. For this reason, various low-temperature waste heat engines and other uses have been produced, such as waste heat heating and lithium bromide refrigeration. [0003] Low-grade energy academically does not define what kind of low-grade energy is below the temperature, but it is very certain that the lower the temperature, the lower the energy grade and the more difficult it is to use. It can be seen that the lower the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K25/06
Inventor 雷衍章
Owner 雷衍章