Circular fireproof valve

A fire damper, circular technology, applied in the direction of lift valve, valve detail, safety valve, etc., can solve the problem of insufficient sealing performance and achieve the effect of improving the sealing performance

Inactive Publication Date: 2017-05-10
CHONGQING LANGTUO VENTILATION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing fire damper can meet the requirements of use to a certain extent, due to the gap between the blade and the valve body during the rotation process, the sealing performance is insufficient, and it cannot effectively play the role of preventing smoke and fire.

Method used

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Examples

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0021] As shown in Fig. 1, it is a structural schematic diagram of an embodiment of a circular fire damper of the present invention. The circular fire damper of this embodiment includes a cylindrical valve body 1, inside the valve body 1 is provided a flue gas passage 2 with a circular radial section, and inside the flue gas passage 2 is provided a blade mechanism. The vane mechanism includes a rotating shaft 3 radially installed in the flue gas channel 2. The vane 4 is installed on the rotating shaft 3 to cooperate with the flue gas channel 2. The flue gas channel 2 is provided with two stoppers for limiting the position of the vane 4. Plate 5, valve body 1 is equipped with an ac...

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PUM

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Abstract

The invention discloses a circular fireproof valve. The circular fireproof valve comprises a cylindrical valve body, wherein a smoke channel with a circular radial section is formed in the valve body, and a blade mechanism is arranged in the smoke channel; the blade mechanism comprises a rotary shaft radially installed in the smoke channel, a blade matched with the smoke channel is installed on the rotary shaft, two limit baffles used for limiting the position of the blade are arranged in the smoke channel, an executer in transmission connection with the rotary shaft is installed and arranged on the valve body, a fusing rod stretching in the smoke channel is arranged on the executer, and an air leakage prevention structure is arranged on the inner wall of the smoke channel; and the air leakage prevention structure comprises a bottom sheet fixedly installed on the inner wall of the smoke channel, a bulge projecting inwards is arranged at the middle part of the bottom sheet, a flexible deformation cover is arranged on the bulge in a covering manner, and a deformation gap is formed between the flexible deformation cover and the bulge. The circular fireproof valve disclosed by the invention is capable of effectively improving the airtight performance, thus better playing a role of smoke isolation and fire retardance.

Description

technical field [0001] The invention belongs to the technical field of building fire protection equipment, and in particular relates to a circular fire damper. Background technique [0002] Building fire prevention is the fire prevention measures of buildings. Fire prevention measures should be taken in architectural design to prevent fires and reduce fire hazards to life and property. Building fire prevention includes two aspects: prevention before fire and measures during fire. The former is mainly to determine the fire resistance level and structure, control the amount of combustibles and separate the fire site, etc.; the latter is mainly to carry out fire protection zones, set up evacuation facilities and smoke exhaust , fire extinguishing equipment, etc. [0003] The fire damper is generally installed in the central air-conditioning duct system or mechanical smoke exhaust system. When the temperature reaches the set temperature, it closes, and meets the requirements o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/38F16K1/22F16K27/02
CPCF16K17/383F16K1/22F16K17/386F16K27/0218
Inventor 段志亭
Owner CHONGQING LANGTUO VENTILATION EQUIP CO LTD
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