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Round air door

A damper and circular technology, which is applied in the field of round dampers, can solve the problems of affecting sealing performance, consuming a large amount of air source, not saving energy, etc., and achieve the effect of less air consumption, less air source and reliable sealing

Inactive Publication Date: 2015-10-28
丁毅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing round damper is provided with sealing elements such as rubber rings on the periphery of its baffle, but the rubber ring will be worn out after a period of use and affect the sealing performance; The air forms an air curtain on the edge of the baffle to block the leakage of exhaust gas. The disadvantage is that it consumes a lot of air source and does not save energy.

Method used

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Embodiment Construction

[0011] The specific embodiment of the present invention will now be described in conjunction with the accompanying drawings.

[0012] The round damper includes a circular housing 3, a circular baffle 1 is arranged in the housing, a hoop 5 is fixed on the baffle, a rotating shaft 4 is fixed on the baffle by the hoop, and the bottom of the rotating shaft The end is inserted into the support 6 arranged at the bottom of the housing, and the top end of the rotating shaft protrudes from the upper part of the housing.

[0013] A sealing device is provided on the periphery of the baffle, and the sealing device includes a rubber tube 7, the rubber tube surrounds the groove 2 on the periphery of the baffle, the head and tail of the rubber tube are sealed and connected, and the rubber tube is provided with an air nozzle 71, the gas The nozzle is sealed and connected with the rubber tube, one end of the gas nozzle protrudes from the groove wall and passes through the shaft along the radia...

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Abstract

A round air door used for partitioning circulation of pipeline gas comprises a round shell (3). A round baffle (1) is arranged in the shell. A rotating shaft (4) is fixedly connected to the baffle. The baffle synchronously rotates together with the rotating shaft. The rotating shaft is supported on the shell. A sealing device is arranged on the peripheral edge of the baffle. The round air door is characterized in that the sealing device comprises a rubber tube (7); the rubber tube is arranged in a groove (2) in the peripheral edge of the baffle in a surrounding manner; a gas nozzle (71) is arranged on the rubber tube and connected to the rotating shaft; a vent hole (72) is arranged at one end of the rotating shaft and communicated with the gas nozzle; and high-pressure air is input from the vent hole, and the rubber tube can expand and be attached to the inner wall of the shell. Compared with the prior art, the round air door has reliable sealing performance, is small in consumed air source and has the energy-saving effect.

Description

technical field [0001] The invention relates to a round damper, which is used to cut off the gas circulation of a pipeline, which comprises a casing and a circular baffle arranged in the casing, and a sealing device is arranged on the periphery of the baffle. Background technique [0002] Power plants and steel mills will produce exhaust gas during operation, and these exhaust gases enter the purification device through the induced air duct for treatment. When the purification device needs maintenance, the induced air duct must be closed and the exhaust gas is not allowed to leak from the induced air duct. The damper that closes the air duct must be highly sealed. The existing circular damper is provided with sealing elements such as rubber rings on the periphery of its baffle, but the rubber ring will wear out after a period of use and affect the sealing performance; The air forms an air curtain on the edge of the baffle to block the leakage of exhaust gas. The disadvantag...

Claims

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Application Information

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IPC IPC(8): F16K1/226F16K1/36F16K1/32
CPCF16K1/2261F16K1/32F16K1/36
Inventor 丁毅
Owner 丁毅
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