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Heat value stabilizing control system of mixed gas and computer-controlled model

A mixed gas, stable control technology, applied in the direction of controlling combustion, lighting and heating equipment, etc., can solve the problems of unstable pressure and calorific value, complex coupling, low control precision, etc.

Inactive Publication Date: 2009-02-11
SHANDONG IRON & STEEL CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the pressure and calorific value of blast furnace gas and coke oven gas are unstable, there are many disturbances, and the coupling is complicated. The control system in the prior art cannot solve the problem that the online calorific value detection is too lagging, nor can it solve the problem of the calorific value adjustment of the mixed gas. Therefore, the control accuracy of the dynamic adjustment process of the system is low, which cannot meet the requirements of the gas turbine

Method used

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  • Heat value stabilizing control system of mixed gas and computer-controlled model
  • Heat value stabilizing control system of mixed gas and computer-controlled model

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Embodiment Construction

[0010] In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation.

[0011] by attaching figure 1 It can be seen that the calorific value stabilization control system of the mixed gas in this scheme includes a blast furnace gas input pipeline (1), a coke oven gas input pipeline (2) and a mixed gas output pipeline (12) connected to the two gas input pipelines. In this scheme, a blast furnace gas pressure regulating valve (3), a blast furnace gas pressure sensor (6), a blast furnace gas flow sensor (7) and a blast furnace gas flow regulating valve (8) are installed on the blast furnace gas input pipeline (1); A coke oven gas flow sensor (5) and a coke oven gas flow regulating valve (9) are installed on the gas input pipeline (2); a mixed gas calorific value sensor (10) and a mixed gas pressure sensor are installed on the mixed gas output pipeline (12) (11); In addition, there is a computer contro...

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Abstract

In the invention, a blast-furnace gas pressure-control valve, a blast-furnace gas pressure sensor, a blast-furnace gas flow sensor and a blast-furnace gas flow-control valve are mounted on the blast-furnace gas input conduit; on the coke-oven gas input conduit are disposed a coke-oven gas flow sensor and a coke-oven gas flow-control valve and on the mixed gas output conduit are mounted a mixed gas heat valve sensor and a mixed gas pressure sensor. In addition, a computer control device has an electric connection with the pressure-control valve, the pressure sensor, the flow sensor and flow-control valve of the blast-furnace gas, the flow sensor and flow-control valve of the coke-oven gas and the heat value sensor and the pressure sensor of the mixed gas.

Description

Technical field: [0001] The invention relates to a gas control system used in a gas generating set, in particular to a heat value stabilization control system and a computer control model of a mixed gas. Background technique: [0002] The mixed gas used in the gas-steam combined cycle power generation is a mixed gas that is fully mixed with the purified blast furnace gas and coke oven gas in proportion and meets the requirements of the calorific value of the gas turbine. However, the pressure and calorific value of blast furnace gas and coke oven gas are unstable, there are many disturbances, and the coupling is complicated. The control system in the prior art cannot solve the problem that the online calorific value detection is too lagging, nor can it solve the problem of the calorific value adjustment of the mixed gas. Therefore, the control accuracy of the dynamic adjustment process of the system is low, which cannot meet the requirements of the gas turbine. Invention c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23N5/18F23N5/00
Inventor 温燕明张红瑞耿晓宁范鵾范者峰马健杨传鹏
Owner SHANDONG IRON & STEEL CO LTD
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