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Method and device for achieving turbine air blowing through low-grade waste heat

Inactive Publication Date: 2018-10-26
周桂林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Low-power turboexpanders for low-grade waste heat applications have been tried and applied in ORC power generation, but there have been no reports on blowing devices directly connected to small compressors for low-power turboexpanders (small turbines)

Method used

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  • Method and device for achieving turbine air blowing through low-grade waste heat
  • Method and device for achieving turbine air blowing through low-grade waste heat
  • Method and device for achieving turbine air blowing through low-grade waste heat

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0031] Such as figure 1 As shown, the industrial low-grade waste heat gas enters the turbo expander 1 from the inlet port 3, and this part of the connecting pipeline is equipped with a temperature sensor 4 and a pressure sensor 5, which are used to monitor the gas temperature and pressure of this part of the pipeline. The temperature sensor 4 and the pressure sensor 5 are all controlled by the control system. At the same time, a regulating valve 18 is also installed at the intake end for regulating the pressure of this part of the pipeline.

[0032] Industrial low-grade waste heat gas enters the turbo expander 1 to do work, and rotates the coaxial turbo compressor 2 to realize blasting (compressed air production). A flow temperature testing device 12 is installed on the side of the compressed air outlet 15 .

[0033] The tail gas from the tur...

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Abstract

The invention relates to the field of application of low-grade waste heat, and provides a method and device for achieving turbine air blowing through low-grade waste heat. The device for achieving turbine air blowing through low-grade waste heat comprises a small turbine expander, a turbine compressor, an oil lubricating system and a device control system. The method for achieving turbine air blowing through low-grade waste heat comprises the specific steps that low-grade waste heat gas is introduced into a turbine expander through a gas inlet section of the turbine expander for acting, the turbine compressor coaxial with the turbine expander is driven, and air blowing is directly achieved. In the field of compressed air energy storage, a waste heat turbine is applied to achieve air blowing and direct gas making, and the comprehensive conversion efficiency of compressed air energy storage and energy utilization can be greatly improved; in the field of industrial energy saving, medium-low-temperature waste heat and waste pressure gas is introduced into the waste heat turbine, air blowing is directly achieved, the utilization efficiency of waste heat energy can be greatly improved, and energy consumption in process industry is reduced.

Description

technical field [0001] The invention relates to the application field of low-grade waste heat, in particular to a method and device for realizing turbine blowing by using low-grade waste heat. Background technique [0002] In iron and steel, non-ferrous metals, petrochemical, building materials, light industry and many other industries, production enterprises have a large amount of low-grade waste heat, including flue gas, steam and industrial waste gas, etc. The heat is low in grade, large in quantity and scattered, and basically cannot be used for used for production. Under the current policy background of energy conservation and emission reduction, low-taste waste heat and pressure utilization technology and intelligent energy-saving equipment have attracted more and more attention from industry and academia. [0003] The technology of using ORC to realize power generation with medium and low temperature waste heat is very mature, but the economy of investment is poor, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/04F04D25/08F01D15/08
CPCF01D15/08F04D25/04F04D25/08Y02P20/10
Inventor 周桂林
Owner 周桂林
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