Cylindrical filter for filtering fuel gas in gas turbine

A gas turbine and filter technology, which is applied to gas turbine devices, machines/engines, mechanical equipment, etc., can solve the problems of design parameters, materials, and structures that are not fully suitable for gas turbine terminal filters, and achieves easy disassembly and cleaning, high filtration accuracy, The effect of small pressure loss

Active Publication Date: 2017-02-22
CHENGDU KAIYUAN FLOW
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, this patent and similar high-temperature gas cylindrical filter equipment are not designed for filtering natural gas or gas at the inlet of gas turbines, and their design parameters, materials, and structures are not completely suitable for the final filter of gas turbines

Method used

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  • Cylindrical filter for filtering fuel gas in gas turbine
  • Cylindrical filter for filtering fuel gas in gas turbine
  • Cylindrical filter for filtering fuel gas in gas turbine

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0033] An embodiment of the present invention, such as image 3 As shown, a high-temperature gas filter is installed near the gas inlet of the gas turbine. The gas filter is connected to the gas inlet of the gas turbine in a double-parallel manner. Stop for maintenance or clean the filter element.

[0034] Filter design parameters in this embodiment: the maximum flow rate of natural gas is about 79000kg / h (at 3.5Mpa, 200°C), the minimum value is about 2566kg / h (at 3.7Mpa, 15°C), and the normal value is about 66000kg / h h (at 3.5Mpa, 200°C), design pressure 5Mpa, design temperature 3...

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Abstract

The invention discloses a cylindrical filter for filtering fuel gas in a gas turbine. The cylindrical filter comprises a cylindrical shell and further comprises filter elements. Each filter element comprises a side wall defined by cemented metal fibrofelt, wherein a connection piece connected with an installation plate is installed at one end of the side wall, a bottom plate is installed at the other end of the side wall, and cemented metal fibrofelt filters out solid particles larger than 5 micrometers. The sum of the superficial area of the filter elements is larger than 25 square meters, and the loss of pressure of the filter elements is smaller than 0.2 bar. The connection pieces are installed in corresponding inner threaded holes in the installation plate, and the cross section of at least part of inner wall of each connection piece is polygonal. By means of the arrangement of the filter elements and the installation plate, the fuel gas flows into a gas outlet space from a gas inlet space via the side walls. The filter is good in filtering effect and large in pollutant holding quantity.

Description

technical field [0001] The invention belongs to clean energy machinery, in particular to a device used in a gas turbine, especially a filtering device used for the input gas of the gas turbine. Background technique [0002] The gas turbine is an internal combustion power machine that uses continuous flowing gas as the working medium to drive the impeller to rotate at high speed and convert the energy of the fuel into useful work. Gas turbines are usually fueled by natural gas or light diesel oil. When combustible gases such as natural gas are used as fuel, impurities must be removed before the high-pressure gas and fuel enter the gas turbine to prevent impurities from clogging the nozzle. If the nozzle is blocked, the gas turbine needs to be shut down, and the cylinder block is opened for cleaning and maintenance, which affects the normal operation of the gas turbine. [0003] The existing gas filter is divided into a front-end filter and a terminal filter. The front-end f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/055
CPCF02C7/055
Inventor 戴富林戴健
Owner CHENGDU KAIYUAN FLOW
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