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Bleed air purging system of dual-fuel gas turbine

A gas turbine and dual-fuel technology, applied in combustion chambers, combustion methods, combustion equipment, etc., can solve problems such as energy waste, difficult storage and transportation, flammability and explosion, etc., and achieve reduced equipment investment, good matching, and improved Effects on Reliability and Lifetime

Inactive Publication Date: 2021-03-09
中国船舶重工集团公司第七0三研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of crude oil extraction, a large amount of oil-associated gas is often produced. This associated gas is flammable, explosive and difficult to store and transport. For safety reasons, it will be directly burned and disposed of from the beginning of extraction. , resulting in a serious waste of energy

Method used

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  • Bleed air purging system of dual-fuel gas turbine

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Embodiment Construction

[0011] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0012] combine figure 1 , The specific implementation of the fuel channel bleed air purge system: the fuel purge line 1 is connected with the throttle assembly 2 and the first-stage fuel purge cut-off valve 3 in turn; the outlet of the first-stage fuel purge cut-off valve 3 passes through the first A branch pipeline is connected with the cut-off valve 4 of the second-stage fuel purge circuit, and connected with the exhaust valve 5 of the fuel purge circuit through the second branch pipeline; the cut-off valve 4 of the second-stage fuel purge circuit is connected with the check valve 6 ; The check valve 6 is connected to the fuel channel interface 13 on the dual fuel nozzle 12 .

[0013] The specific implementation of the gas channel bleed air purge system: the gas purge pipeline 7 is connected to the first-stage gas purge circuit cut-off valve 8; the outlet of th...

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PUM

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Abstract

The invention aims to provide a bleed air purging system of a dual-fuel gas turbine. The bleed air purging system comprises a dual-fuel nozzle, a fuel oil purging pipeline and a fuel gas purging pipeline; a throttling assembly and a first-stage fuel oil purging pipeline stop valve are sequentially installed on the fuel oil purging pipeline; an outlet of the first-stage fuel oil purging path stop valve is connected with a first fuel oil branch pipeline and a second fuel oil branch pipeline; the first fuel oil branch pipeline is sequentially provided with a second-stage fuel oil purging path stop valve and a first check valve; the rear portion of the first check valve is connected with the dual-fuel nozzle, and the fuel gas purging pipeline is provided with a first-stage fuel gas purging path stop valve; an outlet of the first-stage fuel gas purging path stop valve is connected with a first fuel gas branch pipeline and a second fuel gas branch pipeline; the first fuel gas branch pipelineis sequentially provided with a second-stage fuel gas purging path stop valve and a second check valve; and the rear portion of the second check valve is connected with the dual-fuel nozzle. According to the bleed air purging system, online switching can be realized, the requirements of different purging air sources are met, and continuous and stable operation can be realized.

Description

technical field [0001] The invention relates to a gas turbine purging system, in particular to a dual-fuel gas turbine purging system. Background technique [0002] In the process of crude oil extraction, a large amount of oil-associated gas is often produced. This associated gas is flammable, explosive and difficult to store and transport. For safety reasons, it will be directly burned and disposed of from the beginning of extraction. , resulting in a serious waste of energy. Dual-fuel gas turbine is a kind of power equipment that can effectively solve this problem. It can not only provide power for crude oil development, but also use petroleum-associated gas as gaseous fuel to work, and realize the original liquid fuel and petroleum-associated gas without shutting down. The undisturbed online switching between them improves the adaptability of the gas turbine to the fuel, effectively utilizes the petroleum associated gas, and solves the demand for various fuels under diff...

Claims

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Application Information

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IPC IPC(8): F23R3/36
CPCF23R3/36
Inventor 曹天泽武萍齐秀龙张国强李雅军
Owner 中国船舶重工集团公司第七0三研究所
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