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Fuel gas calorie control equipment and gas turbine system

A technology for controlling equipment and calories. It is used in turbine/propulsion fuel delivery systems, gas turbine units, and fuel control of turbine/propulsion units. It can solve problems such as large delays, poor response of gas calorimeters, and rapid fluctuations in gas calories. , to achieve the effect of stable combustion state, stable volatility, and suppression of volatility

Inactive Publication Date: 2006-09-06
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case where CFG as a by-product gas from a new furnace is mixed in, the gas calorie of CFG fluctuates rapidly
Therefore, even with conventional feedforward control, the value of gas calorie fluctuation of gas cannot be sufficiently controlled
In addition, due to the poor response of gas calorimeters and their large time delays, it is difficult to respond to rapid fluctuations in the by-product gases produced in newer blast furnaces

Method used

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  • Fuel gas calorie control equipment and gas turbine system
  • Fuel gas calorie control equipment and gas turbine system
  • Fuel gas calorie control equipment and gas turbine system

Examples

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Effect test

no. 2 example

[0083] A second embodiment of the present invention will be described with reference to the accompanying drawings. Figure 10 is a structural block diagram showing the gas turbine system according to the present embodiment. exist Figure 10 In the structure shown in , parts that are the same as those in FIG. 1 will have the same reference numerals, and their detailed description will be omitted. Furthermore, as in the first to eighth configuration examples according to the first embodiment (see figure 2 The gas storage tank of the configuration shown in FIG. 9 ) will be used for the gas storage tank in the gas turbine system according to the present embodiment, and its detailed description will be omitted.

[0084] Figure 10 The gas turbine system in is the gas turbine system according to the first embodiment (see FIG. 1 ), which adds: a gas calorimeter 10b for measuring the gas calorie of CFG discharged after the delay effect is provided in the gas storage tank 2 and ins...

no. 3 example

[0089] A third embodiment of the present invention will be described with reference to the accompanying drawings. Figure 11 is a structural block diagram of the gas turbine system according to the current embodiment. exist Figure 11 In the structure, with Figure 10 Parts with the same structure will have the same reference numerals, and their detailed descriptions will be omitted. Furthermore, as in the first to eighth configuration examples according to the first embodiment (see figure 2 The gas storage tank of the configuration shown in FIG. 9 ) will be used for the gas storage tank in the gas turbine system according to the second embodiment, and its detailed description will be omitted.

[0090] Figure 11 The gas turbine system in is according to the second embodiment (see Figure 10 ) gas turbine system, which has increased: a gas calorimeter 10c for measuring the gas calorie of CFG passing through the CFG inlet pipe 1a before being supplied to the gas storage ta...

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Abstract

The CFG is mixed with BFG by providing different delayed time when it is supplied into air reservoir (2), and thus the fluctuation ratio of CFG calorie is inhibited. The air current rate of BFG is controlled by feedback control according to gas calorie of mixed gas, and so the gas calorie of mixed gas is controlled.

Description

technical field [0001] The present invention relates to a gas calorie control device for specifically controlling the gas calorie of gas in a combustion system using blast furnace gas as fuel gas; and the present invention also relates to a gas calorie supply whose gas calorie is specifically controlled by the gas calorie control device according to the present invention gas-fired gas turbine system. Background technique [0002] Currently, blast furnace gas contains a large amount of carbon monoxide (CO) as a by-product gas discharged from a blast furnace of a steel factory, and a gas turbine power generation system using blast furnace gas as a main fuel has been developed. In such a gas turbine power generation system, the gas calorie of the blast furnace gas generated fluctuates greatly depending on the operating conditions of the blast furnace. As a result, the power generation output of the gas turbine using the blast furnace gas as a main fuel varies due to fluctuatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/40F01D15/10F02C3/22F02C6/00F02C9/00
CPCF02C9/26F02C3/22F02C9/40F02C9/00
Inventor 平本康治村濑拓也高田智成川根浩园田隆
Owner MITSUBISHI HEAVY IND LTD
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