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Dual-circulation screw expansion motor system

A screw expander and screw expansion technology, which is applied in the direction of machines/engines, mechanical equipment, steam engine devices, etc., can solve the problems of energy consumption and achieve high cycle efficiency and low waste heat parameter requirements

Inactive Publication Date: 2009-09-16
TIANJIN UNIV
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Problems solved by technology

[0005] 3. A large number of industrial kilns consume a lot of energy

Method used

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  • Dual-circulation screw expansion motor system

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Embodiment Construction

[0024] The dual-cycle screw expansion power machine system of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings.

[0025] Such as figure 1 As shown, the double-cycle screw expansion power machine system of the present invention includes: a screw expander 1, an evaporator 2 and a condenser 3, and the screw expander 1, the evaporator 2 and the condenser 3 are connected in sequence through sealed pipelines A sealed working fluid circulation passage 7 is formed. The evaporator 2 is provided with a heating passage 8 for heating the working medium circulating in the working medium circulation passage 7, and the condenser 3 is provided with a working medium for cooling the working fluid circulating in the working medium circulation passage 7. Quality cooling passage9.

[0026] Moreover, a working medium pump 4 is disposed between the evaporator 2 and the condenser 3 on the working medium circulation channel 7 . ...

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Abstract

The invention discloses a dual-circulation screw expansion motor system, comprising a screw expander, an evaporator and a condenser, the screw expander, the evaporator and the condenser are sequentially connected by a sealed pipeline for forming a working medium circulation path, a heating path for heating a working medium which circularly flows in the working medium circulating path is arranged on the evaporator, and a cooling path for cooling the working medium which circularly flows in the working medium circulation path is arranged on the condenser. A working medium pump is arranged between the evaporator and the condenser on the working medium circulation path. Heating water circulates in the heating path, and a heating water pump is arranged at a water outlet end of the evaporator on the heating path. Cooling water or cooling air circulates in the cooling path, and a cooling water pump is arranged at a cooling water / air inlet end of the condenser on the cooling path. The dual-circulation screw expansion motor system has simple structure and can design and recover residual heat at 60-100 DEG C and normal pressure, thereby saving energy, protecting environment, not consuming substances with low boiling point, realizing high circulation efficiency and strong applicability and having no need of designing the screw expander specially.

Description

technical field [0001] The invention relates to a double-cycle screw expansion power machine system. In particular, it relates to a double-cycle screw expansion power machine system capable of fully utilizing industrial waste heat to generate power. Background technique [0002] Due to the characteristics of my country's energy structure, the energy has not fully reached the cascade utilization, the overall energy utilization rate is very low, and the waste heat resources are large and widely distributed, mainly in the following five aspects: [0003] 1. There are about 500,000 industrial boilers in my country, of which a considerable part of 6-10 (tons / hour) boilers have a rated steam pressure of 1.3 MPa. Due to production process reasons, they need to be operated at reduced pressure, reduced temperature and reduced pressure. cause a lot of waste. [0004] 2. With the increase of the popularization rate of central heating in cities, heating stations generally have part of ...

Claims

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Application Information

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IPC IPC(8): F01K7/00F01K11/00F01K27/02
Inventor 李惟毅赵力李汛汪健生曹滨斌
Owner TIANJIN UNIV
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