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A waste heat utilization system for hydrogen mixed working fluid

A technology of mixing working fluid and hydrogen, used in heat exchangers, waste heat treatment, indirect heat exchangers, etc., can solve problems such as unsuitable industrial waste gas, achieve environmental protection, economic benefits, high efficiency, and reduce nitrogen oxide emissions. Effect

Active Publication Date: 2019-11-22
SHANGHAI KELAIPU ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not suitable to use the waste heat of industrial waste gas for power generation

Method used

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  • A waste heat utilization system for hydrogen mixed working fluid
  • A waste heat utilization system for hydrogen mixed working fluid
  • A waste heat utilization system for hydrogen mixed working fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The waste heat utilization system of hydrogen mixed working medium of the present invention is as figure 1 As shown, it includes a hydrogen reaction bed 1 , a mixed gasifier 2 , a mixed gas expander 3 , a liquid-laden expander 4 , a generator 5 , a gas-liquid separator 6 , an exhaust gas discharge unit 20 and a booster pump 7 . The mixed gas expander, liquid-entrained expander and generator are coaxially connected. The mixed gasifier 2 is provided with a flue gas coil 21, a hydrogen inlet, a condensate inlet and a mixed gas outlet; the gas-liquid separator 6 is provided with a hydrogen outlet, a condensate outlet and a mixed gas inlet; the hydrogen outlet of the gas-liquid separator 6 is A hydrogen filter membrane 8 is provided. The hydrogen outlet of the gas-liquid separator 6 is connected to the hydrogen inlet of the hydrogen reaction bed 1 through the low-pressure hydrogen pipeline 9, and the hydrogen outlet of the hydrogen reaction bed 1 is connected to the hydroge...

Embodiment 2

[0026] Another embodiment of the waste heat utilization system of the hydrogen mixed working fluid of the present invention is as follows: figure 2 As shown, it includes a hydrogen reaction bed 1, a mixed gasifier 2, a mixed gas expander 3, a generator 5, a condensing gas-liquid separator 13, a waste heat flue gas pipeline 11, a booster pump 7 and an exhaust gas discharge unit 20, The gas mixture expander is coaxially connected with the generator. The mixed gasifier 2 is provided with a hydrogen inlet, a condensate inlet and a mixed gas outlet, and the condensing gas-liquid separator 13 is provided with a hydrogen outlet, a condensate outlet and a mixed gas inlet, and the hydrogen outlet of the condensing gas-liquid separator is provided with a hydrogen gas outlet. filter membrane8. The hydrogen outlet of the condensing gas-liquid separator 13 is connected to the hydrogen inlet of the hydrogen reaction bed 1 through the low-pressure hydrogen pipeline 9, and the hydrogen outl...

Embodiment 3

[0030] The third embodiment of the present invention is as image 3 As shown, it includes a hydrogen reaction bed 1, a mixed gasifier 2, a mixed gas expander 3, a liquid-laden expander 4, a compressor 16, a generator 5, a gas-liquid separator 6, an exhaust gas discharge unit 20, and a booster pump 7 , air inlet 25, compressor 16, air cooling pipe 22, cooling recovery device 24, condenser 29, liquid oxygen separator 23, liquid oxygen outlet 27 and nitrogen exhaust port 26. The gas-mixed expander 3 , the liquid-laden expander 4 , and the compressor 16 are coaxially connected with the generator 5 . The mixed gasifier 2 is provided with a flue gas coil 21, an air cooling pipe 22, a hydrogen inlet, a condensed liquid inlet and a mixed gas outlet, and the gas-liquid separator 6 is provided with a mixed gas inlet, a hydrogen outlet and a condensed liquid outlet, and the gas-liquid separation The hydrogen outlet of device 6 is provided with hydrogen filter membrane 8. The condenser ...

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Abstract

The invention relates to a waste heat utilization system of a hydrogen gas mixing working medium. The waste heat utilization system comprises a hydrogen reaction bed, a mixing gasifier, a mixing gas expander, a waste heat smoke gas pipeline, a booster pump and a waste gas emission unit, wherein the waste gas smoke gas pipeline is connected to the waste gas emission unit through the hydrogen reaction bed and a smoke gas coiled tube of the mixing gasifier; a hydrogen gas outlet of a gas-liquid separator is connected to the hydrogen reaction bed through a low-pressure hydrogen gas pipeline; a hydrogen gas outlet of the hydrogen reaction bed is connected to a hydrogen gas inlet of the mixing gasifier through a high-pressure hydrogen gas pipeline; a condensate outlet of the gas-liquid separatoris connected to a condensate inlet of the mixing gasifier through the booster pump; a gas mixture outlet of the mixing gasifier is connected to an inlet of the mixing gas expander; and an outlet of the mixing gas expander is connected to a gas mixture inlet of the gas-liquid separator. The waste heat utilization system utilizes waste heat of industrial smoke gas to heat and circulate the workingmedium, and the working medium circulates and drives the mixing gas expander and a liquid expander to do work to drive a power generator to generate power, so that industrial waste heat and engine waste heat are sufficiently recycled, and therefore, energy saving and emission reduction are facilitated.

Description

technical field [0001] The invention belongs to the technical field of energy comprehensive utilization, and relates to a waste heat utilization system of hydrogen mixed working medium. Background technique [0002] The recovery and utilization of industrial furnace waste heat can save energy consumption, reduce the production cost of thermal products, and reduce the emission of pollutants. Industrial furnaces are large-scale high-energy-consuming devices. With the rapid development of the national economy, the waste heat of industrial furnaces is very rich and has great potential for utilization. Iron and steel industry, calcium carbide industry, alumina industry and refractory material industry are major energy consumers. The rapid growth of the above industries has driven the rapid development of industrial furnaces. The carbon dioxide produced by the decomposition of limestone in lime production is a valuable resource. Since the decomposed carbon dioxide is mixed with t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D17/00F28D21/00
CPCF27D17/004F28D21/0014
Inventor 贾鹏
Owner SHANGHAI KELAIPU ENERGY TECH CO LTD
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