Storage tank fire extinguishing device and fire extinguishing method

A fire extinguishing device and storage tank technology, applied in the field of oil tank fire extinguishing, can solve the problems of hot oil tank boiling over, inability to effectively control and extinguish fire, etc., and achieve the effect of solving the difficulty of fire extinguishing

Pending Publication Date: 2020-03-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of the prior art fire extinguishing system, which is easy to cause hot oil tanks to boil over, cannot effectively control and extinguish the fire, and provides a storage tank fire extinguishing device and fire extinguishing method, which can heat and quickly extinguish the oil storage tank. fire without boiling over

Method used

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  • Storage tank fire extinguishing device and fire extinguishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The gas source unit adopts compressed nitrogen, which comes from the site’s own nitrogen pipeline. The solid powder fire extinguishing agent uses hollow glass beads (particle size 1.0-2.0mm), and the foam fire extinguishing agent chooses aqueous film-forming foam fire extinguishing agent (AFFF) .

[0085] When a fire occurs in the high-temperature hot oil storage tank, start the preset program of the control unit, and the high-pressure nitrogen in the gas supply pipeline 61 is decompressed to 1.2 MPa by the pressure reducing valve 63, and then enters the solid powder fire extinguishing agent unit 2 and the foam fire extinguishing agent at the same time Unit 3. The compressed nitrogen first pushes the hollow glass microbeads from the solid powder fire extinguishing agent unit 2 to the burst disc 52 through the one-way valve 51. The burst disc is opened due to low pressure, and the hollow glass microbeads are sprayed out from the injection port 4, thereby damaging the oil...

Embodiment 2

[0092] The same fire extinguishing conditions as in Example 1 are adopted, the difference is that the high temperature residual oil storage tank with a diameter of 3.6m and no nitrogen seal is used for fire extinguishing, the gas source unit uses liquid nitrogen, and the liquid nitrogen comes from the on-site liquid nitrogen tank, and the solid powder is The fire extinguishing agent is expanded perlite (particle size: 0.5-1.0mm), and the foam fire extinguishing agent is aqueous film-forming foam fire extinguishing agent (AFFF). The fire extinguishing effect is shown in Table 2.

Embodiment 3

[0099] The same fire extinguishing conditions as in Example 1 are adopted, the difference is that the high temperature residual oil storage tank with a diameter of 3.6m and no nitrogen seal is used for fire extinguishing, the gas source unit uses liquid nitrogen, and the liquid nitrogen comes from the on-site liquid nitrogen tank, and the solid powder is Expanded vermiculite (particle size: 1.0-1.5 mm) was selected as fire extinguishing agent, and solvent-resistant water film-forming foam fire extinguishing agent (AFFF / AR) was selected as foam fire extinguishing agent. See Table 3 for the fire extinguishing effect.

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Abstract

The invention relates to the field of oil tank fire extinguishing, and discloses a storage tank fire extinguishing device and fire extinguishing method. The storage tank fire extinguishing device comprises a storage tank body for storing fluid, and further comprises a solid powdery fire extinguishing agent unit, a foam fire extinguishing agent unit, an injection port, a fire extinguishing agent pipeline and a gas source unit, wherein the solid powdery fire extinguishing agent unit and the foam fire extinguishing agent unit are arranged at intervals with the storage tank body, the injection port is arranged in the storage tank body and used for spraying a fire extinguishing agent into the storage tank body, the fire extinguishing agent pipeline is used for communicating the solid powdery fire extinguishing agent unit and the foam fire extinguishing agent unit with the injection port, and the gas source unit is respectively connected with the solid powdery fire extinguishing agent unit and the foam fire extinguishing agent unit to discharge the fire extinguishing agent in the solid powdery fire extinguishing agent unit and the foam fire extinguishing agent unit into the fire extinguishing agent pipeline and spray the fire extinguishing agent to the storage tank body through the injection port. The storage tank fire extinguishing device can effectively control fire and quickly extinguish high-temperature hot oil fire.

Description

technical field [0001] The invention relates to the field of oil tank fire extinguishing, in particular to a storage tank fire extinguishing device and a fire extinguishing method. Background technique [0002] In order to meet the ever-increasing requirements for energy saving, emission reduction, and environmental protection, petrochemical companies mostly use heat-in and heat-out processes for refining and chemical plants, and intermediate oil products are stored in high-temperature tanks to reduce heat loss caused by temperature changes. The oil products stored in existing high-temperature oil tanks mainly include heavy oil such as high-temperature wax oil, hydrogenated tail oil, and residual oil. The storage temperature is usually 120°C-165°C. Most of the high-temperature oil tanks in service have a volume of 5000m 3 -10000m 3 between, while the newly built high-temperature oil tank takes 10000m 3 -20000m 3 Mainly, all are vaults. [0003] Due to the operation risks...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C3/06A62C5/00A62C5/02A62C31/12A62C31/28A62C35/02A62C37/00
CPCA62C3/065A62C5/00A62C5/02A62C31/12A62C31/28A62C35/023A62C37/00
Inventor 谈龙妹吴京峰尚祖政郎需庆周日峰张晋武谢忠
Owner CHINA PETROLEUM & CHEM CORP
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