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Method of preventing flame fleeing by using ventilation board and ventilation board

A technology for suppressing flames and ventilating panels, applied in the field of safety, can solve problems such as failure to meet fire protection requirements, insignificant fire protection effects, and flame escaping, and achieve the effect of suppressing escaping through ventilation holes and eliminating potential fire safety hazards.

Inactive Publication Date: 2006-09-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there are many schemes for suppressing flames from escaping. The most commonly used design is: a double-layer metal fire barrier. However, in the actual product test, its fire prevention effect is not obvious, and flames still escaping ;The design of double-layer fire-blocking net is in the design of linear air duct, the effect of suppressing flame is not obvious, and it cannot meet the fire protection requirements

Method used

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  • Method of preventing flame fleeing by using ventilation board and ventilation board
  • Method of preventing flame fleeing by using ventilation board and ventilation board

Examples

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Effect test

Embodiment 1

[0019] A method for suppressing flames from escaping by using ventilation panels. A ventilation panel for heat dissipation is provided on the casing of the electrical equipment, and a circular ventilation hole is provided on the main body of the ventilation panel. Coated on the inside and outside of the main body of the ventilation panel and the inner wall of the ventilation hole, and keep the ventilation hole unblocked. When the electrical equipment burns and catches fire, the fireproof expansion coating will expand due to heat, and block the ventilation hole on the ventilation panel, which can effectively Suppress the internal flames of electrical equipment from escaping through the ventilation holes. For example: in order to meet the requirements of a ventilation board, calculate according to T=1.5R / (2u+1)~2.5R / (2u+1), the opening diameter of the ventilation hole 101 on the design board is a circle of 5mm, and the coating thickness The design requirement is 0.12 ~ 0.2mm. In...

Embodiment 2

[0021] Such as figure 1 and figure 2 As shown, a ventilation panel for electrical equipment that suppresses flames from escaping, includes a circular ventilation hole 101 on the ventilation panel main body 102, and a fireproof barrier layer 103 made of fireproof expansion coating is provided at the ventilation hole 101, The fire barrier layer 103 is provided on the inner side and the outer side of the ventilation panel main body 102 and the inner wall of the ventilation hole 101 at the same time, and keeps the ventilation hole 101 unblocked.

[0022] According to the requirements of the production process, the above-mentioned ventilation panel for electrical equipment that suppresses the escape of flames can be provided with the fire barrier layer 103 at any one of three positions, such as the inside and outside of the main body of the ventilation panel 102, and the inner wall of the ventilation hole 101. A combination of two positions.

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Abstract

A method for preventing the flame from running outward by use of ventilation plate used for electronic equipment features that a thermal expanding paint is coated at the positions of the ventilation holes on said ventilation plate. When a fire accident takes place in the electronic equipment and the flame will run outward via said ventilation holes, the coated thermal expanding paint is thermally expanded to close said ventilation holes.

Description

technical field [0001] The invention relates to safety technology in the field of electronics or communication, and specifically refers to a ventilation panel and a method for suppressing flame escape realized by using the same. Background technique [0002] For electrical equipment, when internal combustion is caused by short circuit, electric spark or static electricity, if it cannot be extinguished in time, a flame will be generated and escape from the equipment, causing a fire and causing unpredictable losses. Electrical equipment is often equipped with a ventilation plate with ventilation holes due to the need for heat dissipation. When the electrical equipment burns inside, the ventilation plate is not conducive to the timely extinguishment of the combustion, and once the flame is generated, it will burst out of the equipment and become the source of the fire. This has been verified in many fires at home and abroad. For this reason, it is very important how to suppress...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C3/16H05K7/20
Inventor 郭明华潘丰斌
Owner HUAWEI TECH CO LTD
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