Waste heat power generation type screw machine set

A screw unit, thermal power generation technology, applied in the direction of machines/engines, mechanical equipment, steam engine devices, etc., can solve the problems of destroying the ozone layer, increasing CO2 emissions, consuming large energy, etc., to reduce use costs, reduce waste heat resources, and reduce energy. The effect of consumption

Inactive Publication Date: 2013-06-26
JIANGSU HEZHENG ENERGY TECH
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AI Technical Summary

Problems solved by technology

The use of the above-mentioned central air-conditioning in various buildings will have the following defects, such as the shortage of power supply in summer; the local air temperature in the city rises sharply, resulting in the heat island effect;
At the same time, the above-mentioned refrigeration and air-conditioning also consume a large amount of energy, which directly or indirectly increases the emission of CO2

Method used

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  • Waste heat power generation type screw machine set

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Embodiment Construction

[0021] The waste heat power generation screw unit is a new type of refrigeration cycle system used in the field of HVAC. It uses the outdoor buried pipe system as the refrigeration system of the cold source, and uses the twin-screw expander system to absorb the low-grade heat energy discharged from the building. Convert it into mechanical energy and then into electrical energy. The electric energy can be used as the driving energy of the refrigeration cycle system or the electric energy of other equipment, thereby reducing the power consumption of the entire refrigerant cycle system and realizing the utilization of low-grade heat energy.

[0022] Such as figure 1 As shown, the waste heat power generation screw unit is mainly composed of a refrigeration cycle system and a twin-screw expander system, and the condensation coil of the refrigeration cycle system is located in the generator of the twin-screw expander system. The refrigerating cycle system has an evaporator 60, ...

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Abstract

A waste heat power generation type screw machine set is characterized by comprising a refrigerating circulating system and a double-screw expansion machine system. A power output shaft of the double-screw expansion machine system is connected with a power generation system, and a condensing coil of the refrigerating circulating system is placed in a generator of the double-screw expansion machine system. The waste heat power generation type screw machine set is reasonable in design and capable of effectively utilizing low grade heat energy emitted by buildings. The double-screw expansion machine system is used for achieving power generation utilization of waste heat energy resources, the energy consumption of the refrigerating circulating system can be reduced, the waste heat resources emitted to an external environment can be reduced, the temperature of an outdoor environment and the using cost of the refrigerating circulating system can be lowered, and emission of carbon dioxide can be reduced.

Description

technical field [0001] The invention belongs to a waste heat recycling device of a ground source heat pump, and in particular relates to a waste heat power generation type screw unit for generating electricity by using low-grade waste heat generated by buildings. Background technique [0002] In the prior art, the refrigeration system mainly uses electric power as the energy source, which can be divided into centrifugal air-conditioning units, air-cooled air-conditioning units, piston-type air-conditioning units, screw-type air-conditioning units and other compression air-conditioning units; Energy, which can be divided into lithium bromide absorption air-conditioning units, ammonia-water absorption air-conditioning units, etc. according to different types of working medium. Compression refrigeration units using electricity as energy have a higher energy efficiency ratio than absorption air conditioning units, but consume high-grade electric energy; absorption air conditioni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K27/02F01D15/10
Inventor 谢学军王彬
Owner JIANGSU HEZHENG ENERGY TECH
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