Power generation device and method using medium-temperature and medium-pressure steam and low-pressure saturated steam in metallurgical industry

A steam and low-pressure technology, applied in steam engine installations, energy industry, machines/engines, etc., can solve problems such as abandonment, energy loss, etc., and achieve the effect of avoiding pollution and avoiding waste

Inactive Publication Date: 2014-07-02
CHENGDU CHENGFA SCI & TECH POWER ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of its technology is that some small amounts of gas and saturated steam are discarded, resulting in energy loss

Method used

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  • Power generation device and method using medium-temperature and medium-pressure steam and low-pressure saturated steam in metallurgical industry

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Embodiment Construction

[0035] The invention provides the following embodiments:

[0036] The steps of the method for generating electricity using medium-temperature, medium-pressure steam and low-pressure saturated steam in the metallurgical industry provided by the present invention are as follows:

[0037] 1. Collect a small amount of gas produced, and heat the collected gas to burn the boiler.

[0038] 2. The combustion boiler produces medium-temperature and medium-pressure steam, which is input to the main steam interface of the steam turbine to drive the steam turbine to rotate, and the steam turbine drives the generator to generate electricity.

[0039] 3. Input the low-pressure saturated steam to the steam-water separator, dry it through the steam-water separator, distribute the dried low-pressure saturated steam to the steam turbine auxiliary steam interface and deaerator through the electric valve, and use it to add auxiliary power to the steam turbine, and at the same time Deaeration of c...

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Abstract

The invention relates to a power generation device and method using medium-temperature and medium-pressure steam and low-pressure saturated steam in the metallurgical industry. The power generation device structurally comprises a steam turbine, an electric generator, a low-pressure saturated steam inlet device, a dead steam condensing device, a deaerator and a combustion boiler, wherein the electric generator is connected with an output part of the steam turbine, the low-pressure saturated steam inlet device is connected with an auxiliary steam connector of the steam turbine, a condensed water inlet of the deaerator is connected with the condensing device, a heating steam connector is connected with the low-pressure saturated steam inlet device, the heating steam connector of the deaerator is also connected with external steam, and a steam outlet of the combustion boiler is connected with a main steam connector of the steam turbine. The power generation method comprises the steps that gas is collected to heat the combustion boiler, the medium-temperature and medium-pressure steam is generated, and then the steam turbine is pushed to rotate to drive the electric generator to generate electricity. According to the power generation device and method using the medium-temperature and medium-pressure steam and the low-pressure saturated steam in the metallurgical industry, the combustion boiler is used for recovering redundant gas in the metallurgical industry, and air pollution caused by diffusion of the gas is avoided; redundant low-pressure saturated steam can be recovered, and waste of energy is avoided; cyclic and economical utilization is achieved.

Description

technical field [0001] The invention relates to a device and method for generating electricity by using medium-temperature, medium-pressure steam and low-pressure saturated steam produced by a small amount of coal gas in the metallurgical industry. Background technique [0002] The metallurgical industry is a high energy consumption and high pollution industry, and the situation of energy conservation and emission reduction is very severe. In recent years, some enterprises have adopted a variety of technical measures, such as building CCPP and self-provided power stations. A large amount of gas (such as blast furnace, converter and coke oven gas) is burned by boilers to generate steam for power generation, and some large amounts of low-pressure saturated steam can also be used (such as converter and heating furnace saturated steam, etc.), but some quantities A small amount of coal gas and low-pressure saturated steam are still released and discarded, resulting in a signific...

Claims

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Application Information

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IPC IPC(8): F01D15/10F01K11/02
CPCY02P80/15
Inventor 暴风严也火肖于楠戴文杨云福罗勇
Owner CHENGDU CHENGFA SCI & TECH POWER ENG
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