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Turbine cooling and natural gas heating integrated gas turbine system

A gas turbine and natural gas technology, applied in mechanical equipment, steam engine devices, engine components, etc., can solve problems such as increased plant power consumption, flow fluctuations, complex systems, etc., to improve operational safety, reduce quantity, and ensure stable operation Effect

Active Publication Date: 2022-07-01
HUANENG BEIJING CO GENERATION
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Problems solved by technology

[0004] The TCA system and FGH system in the above-mentioned gas turbines use two sets of systems, one is to use the high-pressure feed water pump to feed water, and the other is to use the medium-pressure feed water pump to feed water, which increases the power consumption of the plant, and both systems are It is more complicated, and the return water needs to be switched back and forth, and when the flow is switched, the flow often fluctuates greatly due to the problem of the flow valve, and even the machine trips

Method used

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  • Turbine cooling and natural gas heating integrated gas turbine system
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Embodiment Construction

[0034] The technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] It should be noted that the terms "comprising" and "having" in the embodiments of the present specification and the accompanying drawings, as well as any modifications thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or option...

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Abstract

The embodiment of the invention provides a turbine cooling and natural gas heating integrated gas turbine system which comprises a gas turbine system, a turbine cooling and natural gas heating integrated system and a natural gas heat value adjusting system. The other end is communicated with the water inlet end of the TCA system; the TCA system is used for cooling air exhaust of a gas compressor of the gas turbine 2; the water outlet end of the TCA system is communicated with the water inlet end of the FGH system; one end of the low-pressure return water conveying pipeline is connected to the water outlet end of the FGH system, and the other end is communicated with the low-pressure steam pocket; the gas inlet end of the automatic three-way temperature control valve is communicated with a natural gas supply pipeline, and two gas outlet ends are respectively connected with a first conveying pipeline and a second conveying pipeline; the first conveying pipeline is communicated with the air inlet end of the FGH system; the gas outlet end of the FGH system is connected with a third conveying pipeline; and the second conveying pipeline and the third conveying pipeline are converged and then are communicated with a natural gas inlet pipeline.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a gas turbine system integrating turbine cooling and natural gas heating. Background technique [0002] Gas turbine is a kind of equipment that uses high-temperature gas to do work. In order to ensure the safety of gas turbine turbine components, the gas turbine rotor of Mitsubishi Corporation of Japan is cooled by a turbine cooling air system (TCA system), that is, high-pressure feed water is used to cool the compressor pump. The cooling water flow and recovery direction of TCA are controlled through two flow control valves. Since the gas turbine's extraction steam temperature changes from low to high from the initial stage of startup to the rated load, resulting in different requirements for the outlet temperature and flow of the TCA cooling water, the initial stage of startup requires a large flow of low-temperature TCA cooling water. During the load period, TCA cooling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D5/08F01D25/10F01D21/00F01D17/14F01D25/04F01D25/16F01K11/02
CPCF01D5/08F01D25/10F01D21/003F01D17/145F01D25/04F01D25/16F01K11/02
Inventor 卢辉杨智杨君君罗建超朱富强何垚年崔永军潘千里李海旺杨光王志晓王海浩王宝生于腾洋
Owner HUANENG BEIJING CO GENERATION
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