Air filtering device
An air filter device and filter technology, applied in the direction of dispersed particle filtration, dispersed particle separation, chemical instruments and methods, etc., can solve the problem of low filtration accuracy, low dust holding rate of the secondary filter, poor versatility and interchangeability and other problems, to achieve the effect of improving filtration accuracy, increasing versatility and interchangeability, and facilitating production preparation
Inactive Publication Date: 2014-12-24
AVIC PST NANFANG GAS TURBINE COMPLETE MFG & INSTALLATION
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Problems solved by technology
[0003] The purpose of the present invention is to provide an air filter device composed of three-stage filters to solve the technical problems of small dust holding rate, low filtration accuracy, poor versatility and interchangeability of the two-stage filter filter device
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[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0025] see figure 2 , the air filter device in the preferred embodiment of the present invention adopts three-stage filtration, including a first-stage filter 1 , several second-stage filters 2 and several third-stage filters 3 . The first-stage filter 1 , the second-stage filter 2 and the third-stage filter 3 are spaced apart from each other and arranged sequentially in the intake passage of the gas turbine generator set. Among them, the second-stage filter 2 and the third-stage filter 3 are respectively arranged on two sets of filter frames 4 spaced apart from each other, and the filter frame 4 is fixedly installed in the air intake passage of the gas turbine generator set through the embedded part 6 .
[0026] see image 3 Each filter frame 4...
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The invention relates to an air filtering device, which comprises a primary filter, a secondary filter and a tertiary filter, wherein the primary filter, the secondary filter and the tertiary filter are sequentially arranged in an air inlet passage of a gas-turbine generator set at intervals, and the secondary filter and the tertiary filter are arranged on two mutually spaced filter frames respectively. The filter frames are fixedly mounted in the air inlet passage of the gas-turbine generator set through embedded parts. Therefore, air passing through the air inlet passage of the gas-turbine generator set is bound to sequentially pass through the primary filter, the secondary filter and the tertiary filter, so that filtering precision is improved, and dust-holding capacity is increased. Besides, the filters are convenient in mounting, and the filter frames can be further used for container type generator sets, universality and interchangeability of the air filtering device are enhanced, and production arrangements and manufacturing are facilitated.
Description
technical field [0001] The invention relates to the field of gas turbines, in particular to an air filter device for improving the intake air quality of a gas turbine generating set. Background technique [0002] The QDR20 gas turbine generator set uses air as the working medium, and uses the compressed air to ventilate and cool the high-temperature hot parts and seal the lubricating oil. In order to ensure the normal operation of the generator set and prolong its service life, according to the standard of HB7257-95 The air intake requirements of medium gas turbines require filtering of the air medium. The air filtration device used in the existing gas turbine generating set is composed of a secondary filter, see figure 1 , including a louver 100, a filter 300 and a metal frame 200, wherein the louver 100 and the filter 300 are sequentially arranged at intervals in the air intake channel, and the filter 300 is a single-layer non-woven fabric pasted on the metal frame 200. ...
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IPC IPC(8): B01D46/00
Inventor 葛爱明
Owner AVIC PST NANFANG GAS TURBINE COMPLETE MFG & INSTALLATION