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Low-heat value fuel gas combustion chamber of gas turbine

A gas turbine, low calorific value technology, applied in the direction of combustion chamber, continuous combustion chamber, combustion method, etc., can solve the problems of low volume calorific value, pollution, complex composition, etc., achieve uniform heat release, low pollutant emission level, lean flameout The effect of border widening

Active Publication Date: 2015-05-06
BEIJING HUAQING GAS TURBINE & INTEGRATED GASIFICATION COMBINED CYCLE ENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For low calorific value fuels such as coal gasification synthesis gas, blast furnace gas, coke oven gas, chemical purge gas, and city gas, its composition is complex and its volume calorific value is low. If it is directly discharged to the flare system, it will cause great pollution

Method used

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  • Low-heat value fuel gas combustion chamber of gas turbine
  • Low-heat value fuel gas combustion chamber of gas turbine
  • Low-heat value fuel gas combustion chamber of gas turbine

Examples

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Embodiment Construction

[0027] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Unless otherwise e...

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Abstract

The invention relates to the technical field of a gas turbine, and specifically discloses a low-heat value fuel gas combustion chamber of the gas turbine. The low-heat value fuel gas combustion chamber comprises a casing, an end cover arranged at the front end of the casing, a head fuel spray nozzle arranged on the end cover, a flow guiding bush arranged in the casing, a flame tube arranged in the flow guiding bush and a transition section connected with the rear end of the flame tube, wherein the front end of the flame tube is connected with the head fuel spray nozzle; a plurality of rows of main combustion holes are distributed in the flame tube along the axial direction; low-heat value fuel spray nozzles are arranged among the main combustion holes in each row of the flame tube. According to the low-heat value fuel gas combustion chamber disclosed by the invention, lower pollutant emission level can be achieved, and the thermo-acoustic oscillation risk is lower.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a low calorific value fuel gas combustion chamber of a gas turbine. Background technique [0002] For coal gasification synthesis gas, blast furnace gas, coke oven gas, chemical purge gas, city gas and other low calorific value fuels, the composition is complex and the volume calorific value is low. If it is directly discharged into the flare system, it will cause greater pollution. The use of gas turbine combustion is an optimal and environmentally friendly utilization method, which can flexibly utilize such low calorific value fuel gas and convert it into electrical energy or thermal energy. [0003] Usually, for the combustion chamber of a gas turbine, the nozzles used for burning low calorific value fuel gas are modified with mature fuel gas nozzles, and the modification method is to adjust the fuel holes to match the volume flow of the fuel. In this case, the combustio...

Claims

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Application Information

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IPC IPC(8): F23R3/28
Inventor 李珊珊方子文吕煊王绥德
Owner BEIJING HUAQING GAS TURBINE & INTEGRATED GASIFICATION COMBINED CYCLE ENG TECH
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