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Piston type fire extinguishing device and pressure relief method thereof

A fire extinguishing device and piston type technology, which is applied in fire rescue and other fields, can solve the problems of fire extinguishing agent residue in the fire extinguishing agent delivery pipeline, high pressure of driving gas, residue, etc., and achieve the effect of eliminating potential safety hazards, low cost, and improving utilization rate

Pending Publication Date: 2020-01-21
CNBCC AUTOMOBILE SPARE PART XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this piston type fire extinguishing device solves the problem of fire extinguishing agent residue in the storage tank, new problems have also occurred: there is the problem of fire extinguishing agent residue in the fire extinguishing agent delivery pipeline connected with the storage tank; although the driving air chamber is generally provided with The safety pressure relief port ensures that the driving pressure will not exceed the rated pressure, but after the device is started, the pressure of the driving gas in the driving air chamber is still very high, and there is a potential safety hazard of explosion due to environmental influence or external pressure (such as impact)

Method used

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  • Piston type fire extinguishing device and pressure relief method thereof
  • Piston type fire extinguishing device and pressure relief method thereof
  • Piston type fire extinguishing device and pressure relief method thereof

Examples

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Embodiment Construction

[0030] Examples, see Figure 1-Figure 5 As shown, a piston type fire extinguishing device of the present invention includes a storage tank, and the storage tank is provided with several first chambers, specifically two first chambers, but not limited thereto, the two first chambers The chambers 20a, 20b are arranged side by side, and the two first chambers 20a, 20b are respectively slidingly provided with a piston 9, and the piston 9 divides the first chamber 20a / 20b into a fire extinguishing agent chamber 24a / 24b and a driving air chamber 25a / 25b. The two first chambers 20a, 20b are filled with water-type fire extinguishing agent 2, but not limited thereto. The end of each fire extinguishing agent chamber 24a / 24b away from the driving air chamber 25a / 25b is provided with a fire extinguishing agent outlet. In the state where the piston 9 moves to the preset position along the direction that makes the space of the fire extinguishing agent chamber 24a / 24b smaller, the driving...

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PUM

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Abstract

The invention discloses a piston type fire extinguishing device and a pressure relief method thereof. The fire extinguishing device comprises a storage tank; the storage tank is provided with a firstcavity; the first cavity is slidably provided with a piston inside; the piston divides the first cavity into a fire extinguishing agent cavity and a drive air chamber; and in the state that the pistonmoves to a preset position in a direction that a space of the fire extinguishing agent cavity becomes smaller, the drive air chamber communicates with the fire extinguishing agent cavity, so that drive air in the drive air chamber enters the fire extinguishing agent cavity and is exhausted from a fire extinguishing agent outlet of the fire extinguishing agent cavity. According to the fire extinguishing device, the drive air in the drive air chamber can finally enter and be exhausted from the fire extinguishing agent chamber, so that the fire extinguishing agent is avoided from remaining in afire extinguishing agent conveying pipeline, the utilization rate of the fire extinguishing agent is increased, the drive air chamber can be timely released, the potential safety hazard of explosion as the drive air chamber is kept in a higher pressure state after fire extinguishing is avoided, and use of the fire extinguishing device is safer and more reliable.

Description

technical field [0001] The invention relates to a fire extinguishing device, in particular to a piston type fire extinguishing device and a pressure relief method thereof. Background technique [0002] The traditional non-storage type fire extinguishing device uses the driving gas to push the fire extinguishing agent to move, so that the fire extinguishing agent is output. With the output of the fire extinguishing agent, the driving gas will gradually lose, resulting in insufficient driving pressure in the later stage and unable to discharge the fire extinguishing agent in the storage tank. All the fire extinguishing agents were pushed out, resulting in the problem of fire extinguishing agent residue in the storage tank. For this reason, a piston-type fire extinguishing device has appeared in the prior art. A piston is slidably arranged in the storage tank. The piston slides to promote the output of the fire extinguishing agent. During the whole process, the pressure of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C13/68A62C13/76
CPCA62C13/68A62C13/76
Inventor 洪清泉苏财源许跃东谢水生叶黎明
Owner CNBCC AUTOMOBILE SPARE PART XIAMEN
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