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Gas Turbine Low Calorific Value Fuel Gas Combustion Chamber

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

Active Publication Date: 2019-10-01
BEIJING HUAQING GAS TURBINE & INTEGRATED GASIFICATION COMBINED CYCLE ENG TECH
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  • Summary
  • 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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  • Gas Turbine Low Calorific Value Fuel Gas Combustion Chamber
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  • Gas Turbine Low Calorific Value Fuel Gas Combustion Chamber

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Embodiment Construction

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

[0028] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, 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 thus should not be construed as limiting the invention. ...

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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 low calorific value fuels such as coal gasification synthesis gas, blast furnace gas, coke oven gas, chemical offgas, city gas, etc., its composition is complex and its volume calorific value is low. If it is directly discharged to the flare system, it will cause serious pollution. The use of gas turbine combustion is an optimal and environmentally friendly utilization method, which can flexibly utilize this type of low calorific value fuel gas and convert it into electrical energy or heat energy. [0003] Usually, for gas turbine combustors, the nozzles used for burning low calorific value fuel gas are modified by using mature fuel gas nozzles, and the modification method is to adjust the fuel holes to match the volume flow rate of fuel. In this case, the fuel range of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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