Supporting special noise elimination air release assembled valve of high-speed centrifugal fan

A high-speed centrifugal, combined valve technology, used in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of reduced service life, erosion, high humidity in the occasion, and achieve simple and convenient replacement, low manufacturing cost, and service life. long effect

Active Publication Date: 2010-06-09
WUXI GL TUBRO COMPRESSOR
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Problems solved by technology

At present, typical cylindrical resistive mufflers are mostly used. This type of muffler takes up a lot of space and has a complicated structure.
Due to the high temperature of the air discharged by the fan and the high humidity of the place, it has an erosive effect on t

Method used

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  • Supporting special noise elimination air release assembled valve of high-speed centrifugal fan
  • Supporting special noise elimination air release assembled valve of high-speed centrifugal fan

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[0009] The present invention will be further described below in conjunction with the embodiments in the drawings:

[0010] Such as figure 1 Shown: the present invention includes a valve body 1, a sealing lining 2, a butterfly plate 3, a valve stem 4, a supporting core sleeve 5, a low noise plate 6, a perforated plate 7, a sound-absorbing base 8, a sound-absorbing material 9, a jacket 10, etc.

[0011] In the present invention, the low-noise plate 6 is welded into a whole with the supporting core sleeve 5 and the perforated plate 7 in sequence, forming a U-shaped cavity 11 in the middle; the outer jacket 10 is fastened to the noise reduction base 8 and forms a closed cavity with the perforated plate 7. The enclosed cavity is filled with sound-absorbing material 9; the flanges of the muffler base 8, the outer casing 10, and the perforated plate 7 are provided with several holes 12 at the flanges near the muffler base 8, so that the U-shaped cavity 11 is connected to the atmosphere T...

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Abstract

The invention relates to a supporting special noise elimination air release assembled valve of a high-speed centrifugal fan. In the invention, a noise elimination base is fixed on a flange of an end of valve body by a fastener, a perforated plate is arranged on the same flange, a valve rod and a butterfly plate are fixedly connected, a low noise plate, a supporting core housing and the perforated plate are welded together in order, the low noise plate, the supporting core housing and the perforated plate form a U-shaped cavity, a jacket is fixed on the noise elimination base, a sealing chamber formed by the jacket and the perforated plate is filled with sound-absorbing material, a sealing lining is arranged in the valve body, and the butterfly plate and the sealing lining form a seal pair. The invention has the advantages of simple, compact and reasonable structure, small occupying space, low production cost, heat-resistant corrosion-resistant sealing lining in the valve body, long service life and easy replacement of the sound-absorbing material.

Description

technical field [0001] The invention relates to a high-speed centrifugal fan matching special noise reduction and venting combination valve. Specifically, it is a mechanical device used to connect the fan outlet to the atmosphere before starting or stopping the high-speed centrifugal fan in a sewage treatment project and has a noise reduction function. To ensure the safety and reliability of the main engine, it belongs to the technical field of mechanical mechanisms. Background technique [0002] In the prior art, the high-speed centrifugal fan in the sewage treatment project needs to be equipped with a vent valve to ensure the safety and reliability of the fan starting or stopping. The vent valve is installed at the outlet of the fan, so that the outlet of the fan is connected to the atmosphere. In order to reduce the aerodynamic noise discharged into the atmosphere, a muffler needs to be installed at the outlet of the vent valve. At present, typical cylindrical resistive ...

Claims

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Application Information

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IPC IPC(8): F04D29/66
Inventor 金炳庆
Owner WUXI GL TUBRO COMPRESSOR
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