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Underground space air-curtain partitioned fire protection system

An underground space and air curtain technology, applied in shaft equipment, mining equipment, earth-moving drilling, etc., can solve problems such as rescue interruption, rescue facilities and personnel injury

Inactive Publication Date: 2005-12-21
赵明桥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, firefighters need to go deep into the tunnel to extinguish the fire, and they must carry breathing oxygen. Once an explosion occurs, the shock wave will cause damage to rescue facilities and personnel, and the rescue will be interrupted.

Method used

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  • Underground space air-curtain partitioned fire protection system
  • Underground space air-curtain partitioned fire protection system
  • Underground space air-curtain partitioned fire protection system

Examples

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Embodiment Construction

[0069] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0070] Such as figure 1 As shown, when a fire breaks out in a tunnel without air curtains, if there is no longitudinal ventilation, the smoke plume generated by the combustion process at the fire point 3 reaches the tunnel top 1 and then turns into a ceiling jet moving horizontally, and gradually spreads to On the entire roof surface, because the smoke is higher in temperature and lower in density than the air in the tunnel, a stable hot smoke layer is formed in the upper space of the tunnel. The lower space vacated by the flue gas 4 is supplemented by fresh air 5 with low temperature and high density along the bottom surface 2 of the tunnel, forming convection at the upper and lower parts. The oxygen required for combustion is continuously replenished through this convection, and the combustion can continue. . Adopt the fire extinguishing method of sealin...

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PUM

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Abstract

The invention discloses a method which fast extinguishing the underground fires. It consists of fire guard, gas screen , power source and control, the fire extinguishing consists of air inlet hole fan, air tube and air blowing port which separating the under ground into several sections and preventing the air from entering the fire , the fire section is soon put out due to oxygen lack, the method can fast extinguish underground fire and alleviating the loss while facilitating the people evacuation.

Description

Technical field [0001] The invention relates to a fire extinguishing system, in particular to a self-suffocating fire extinguishing system which uses an air curtain to divide an underground space into independent fire protection zones. Background technique [0002] With the rapid development of the economy, my country's demand for energy is increasing. Taking crude oil as an example, China's crude oil consumption in 2004 was 288 million tons. In the future, my country's crude oil consumption will increase at a rate of 5%. % is transported by rail to all parts of the country. According to statistics, so far, China's total railway operating mileage has reached 73,000 kilometers, and more than 5,500 tunnels have been completed and delivered for operation, with a total length of more than 2,700 kilometers. Among them, there are 22 tunnels with a length of more than 5 kilometers. 4.69% of the length, becoming the country with the largest number of railway tunnels and the longest ...

Claims

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Application Information

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IPC IPC(8): E21D5/00
Inventor 赵明桥
Owner 赵明桥
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