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Fine water mist fire extinguishing system and fire extinguishing method in railway tunnel

A fine water mist technology in tunnels, applied in earthwork drilling, fire prevention, safety devices, etc., can solve problems such as positioning, fire prevention, and inability to fully cover the train body, achieving system security, safe and convenient use, and Run Reliable Effects

Inactive Publication Date: 2011-12-28
HEFEI KDLIAN SAFETY TECHNOLOGY CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a fine water mist fire extinguishing system and fire extinguishing method in a railway tunnel, which can realize automatic positioning of the fire source, remote visual monitoring, segmented full package protection, so as to solve the fire extinguishing equipment in the railway tunnel of the prior art It is difficult to locate the fire, and it is impossible to fully cover and protect the train body in the railway tunnel

Method used

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  • Fine water mist fire extinguishing system and fire extinguishing method in railway tunnel
  • Fine water mist fire extinguishing system and fire extinguishing method in railway tunnel
  • Fine water mist fire extinguishing system and fire extinguishing method in railway tunnel

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Embodiment Construction

[0020] Such as figure 1 , figure 2 shown. figure 1 Among them, T is the image type fire detector, C is the output module, R is the input module, DDF is the electric valve, YK is the pressure switch, Q / T is the start / stop button, PS is the spraying instruction, It is sound and light alarm, and XFB is fire pump.

[0021] The waterway part of the system system of the present invention is composed of a fire pump, a water tank, a partition control valve, a fine water mist nozzle, and a pipe network composed of stainless steel pipes.

[0022] The fire pump consists of two high-pressure plunger pumps, one main and one standby. The plunger pump is fixed on the base of the pump set. A stop valve and a Y-type filter are installed at the water inlet of the pump set. The pipes are connected through high-pressure rubber joints. Set stop valve and high pressure check valve. The water tank includes a low water level alarm, a liquid level gauge, a float valve, a Y-shaped filter, and a s...

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Abstract

The invention discloses a fine water mist fire extinguishing system and a fire extinguishing method in a railway tunnel. The system of the present invention includes an image-type fire detector, a fire alarm controller, a fire pump, a water tank, a partition control valve, a fine water mist nozzle and a connecting pipeline. An image-type fire detector is installed on the side wall of the tunnel. The fire alarm controller controls the start and stop of the fire pump and zoning control valve. The fire pump, zoning control valve and water mist nozzle are connected by stainless steel pipes to form a fine water mist pipe network. The method of the invention can realize automatic positioning, segmented full-wrapping protection, reduce ambient temperature, reduce toxic smoke, and put out fires. In addition to having the performance of a general water mist fire extinguishing system, it can also observe the fire scene through video and locate the inside of the railway tunnel. Firefighting is carried out in separate areas where the burning carriage is located. The double-layered water mist nozzles form a full coverage of the train carriage, greatly shortening the fire-extinguishing time.

Description

technical field [0001] The invention relates to the technical field of fire fighting equipment, in particular to a fine water mist fire extinguishing system in a railway tunnel and a fire extinguishing method thereof. Background technique [0002] Application number / patent number: 200420074457 Pipe network type high-pressure single-fluid water mist fire extinguishing device, including water tank, high-pressure water power source, high-pressure water mist nozzle, temperature sensing, smoke detector, alarm, control cabinet and high-pressure water supply pipe The high-pressure water power source mainly includes an electric motor, a pure water high-pressure pump, an overflow valve and a control valve), and the high-pressure water outlet of the pure water high-pressure pump is connected to a high-pressure fine water mist nozzle through an overflow valve, a one-way valve and a control valve; The water inlet of the pure water high-pressure pump is connected to the water tank throug...

Claims

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Application Information

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IPC IPC(8): E21F5/04E21F17/18
Inventor 刘炳海吴龙标王文伟张克年凌宗余洪亮
Owner HEFEI KDLIAN SAFETY TECHNOLOGY CO LTD
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