A method for testing the smoke insulation performance of exhaust duct

A detection method and exhaust duct technology, applied in vertical pipes, buildings, building components, etc., can solve the problems of smoke color and short smoke time.

Active Publication Date: 2020-11-10
浙江省建筑科学设计研究院有限公司 +2
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  • Abstract
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Problems solved by technology

Due to the shortcomings of short smoke emission time and colored smoke of smoke bombs, the existing detection methods for smoke insulation performance of exhaust ducts urgently need to be optimized.

Method used

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  • A method for testing the smoke insulation performance of exhaust duct

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Embodiment Construction

[0017] The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

[0018] refer to figure 1 , a method for detecting smoke insulation performance of an exhaust duct, comprising the steps of:

[0019] S01) Along the gas flow direction of the air intake pipe, the blower fan (the present invention refers to the blower fan hereinafter as the first blower fan 1 for ease of distinction), the smoke generator 2 and the exhaust duct are communicated with the air intake pipe successively;

[0020] S02) Start the first fan 1 and the smoke generator 2, an...

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Abstract

The invention relates to a method for detecting the smoke isolation performance of an exhaust duct. The method for detecting the smoke isolation performance of the exhaust duct solves the problem that a method for detecting the smoke isolation performance of an exhaust duct is poor. The method for detecting the smoke isolation performance of the exhaust duct comprises the steps that S (01) a fan, a smoke generator and the exhaust duct communicate with an air inlet pipe sequentially in the direction of gas flowing of the air inlet pipe; and S (02) the fan and the smoke generator are started, and the smoke generated by the smoke generator is blown into the exhaust duct by wind generated by the fan.

Description

technical field [0001] The invention relates to a detection method for the smoke insulation performance of an exhaust duct. Background technique [0002] The fire check valve includes a valve body and a valve plate connected to the valve body. The valve body is provided with a valve port, and the valve plate is used to open or close the valve port. The residential building is equipped with an exhaust duct, and there are multiple installation ports on the exhaust duct. The fire check valve is installed on the installation port and closes the installation port. When the valve plate opens the valve port, the smoke in the residence can pass through the valve port. Move into the exhaust duct; when the valve plate closes the valve port, the smoke in the exhaust duct will not be able to move into the house. [0003] Before the existing residential buildings are delivered to users, the smoke insulation performance of the exhaust duct needs to be tested, which includes the following...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04F17/02
CPCE04F17/02
Inventor 闫鑫裘建锋樊葳钟伟峰
Owner 浙江省建筑科学设计研究院有限公司
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