Heat-resistant circular air door

A damper and temperature-resistant technology, which is applied in the direction of lifting valves, valve details, engine components, etc., can solve the problems that cannot meet the detection requirements of air leakage and large air leakage, and achieve fast processing speed, low air leakage and high strength. Effect

Pending Publication Date: 2017-10-17
江苏天泽电力辅机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the gap between the blade and the damper frame is increased to meet the extension of the blade, but the air leakage at the ambient temperature is large, and it cannot meet the detection requirements of the air leakage at the ambient temperature, forming a contradiction

Method used

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  • Heat-resistant circular air door
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings. Among them, 1 is the door body, 2 is the blade, 21 is the first sub-blade, 22 is the second sub-blade, 23 is the first elastic seal, 3 is the rotating shaft, 6 is the blade bracket, 61 is the second elastic seal, 62 is a copper sleeve.

[0020] Such as Figure 1-3 As shown, a temperature-resistant round damper includes a door body 1, and more than one blade 2 is arranged in the door body 1 from top to bottom. In this embodiment, the number of blades is 3, and the middle blade is long. , with two right arcs and one left arc. And a right arc of the blade 2 is rotatable on the door body 1 through the rotating shaft 3, and the blades 2 are connected by the transmission of the linkage mechanism (wrapping the drive shaft) simultaneously; the blade 2 includes the first sub-blade and the second sub-blade, the first Arc-shaped structures are set on the sub-blades themselves, a...

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PUM

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Abstract

A temperature-resistant circular damper, comprising a door body, in which blades are arranged densely from top to bottom, and a blade in the center is connected to the door body through a rotating shaft, and the blades are connected through a linkage shaft at the same time; Each of the blades includes a first sub-blade and a second sub-blade, and the first sub-blade is provided with one, two or more arc-shaped structures, and the arc-shaped structure of the first sub-blade is connected to the second sub-blade There is also an arc structure, and each arc structure of the first sub-blade and the second sub-blade wraps a drive shaft at the same time; the connection of adjacent blades is a sub-blade arc structure of the upper blade and a sub-blade of the lower blade. The arc-shaped structure of the sub-blades is connected by wrapping a transmission shaft at the same time. A first elastic seal is provided between the blade and the door body, and a first elastic seal is also provided between the upper and lower adjacent blades. A seal; the second sub-blade is arranged on each arc-shaped structure of the sub-blade to enclose the transmission shaft.

Description

technical field [0001] The invention relates to an air duct valve for electric power, environmental protection, construction, etc., in particular to a temperature-resistant damper. Background technique [0002] The temperature-resistant damper has a high fire-resistant protection level when the product is subjected to a fire-resistant performance test. There is a problem of deformation of the damper blades at high temperatures. The heat-resistant dampers produced by domestic companies have some shortcomings, which makes the dampers in the fire resistance test, due to the extension and deformation of the blades, especially for large-sized dampers, the blades are longer and the extension is large. The blade will push against the outer frame of the damper, causing the blade to deform, and the air leakage test will fail. [0003] The existing butterfly-type damper does not solve this problem. The four-linkage structure of the pressure balance damper, the door leaves of the two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/22F16K1/226F16K31/05
CPCF16K1/222F16K1/223F16K1/2261F16K31/055
Inventor 陈光正
Owner 江苏天泽电力辅机有限公司
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