Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A multi-agent combined fire extinguishing system and method based on liquid carbon dioxide

A technology of liquid carbon dioxide and fire extinguishing system, which is applied in fire rescue and other fields, can solve the problems of not being able to extinguish liquid fires in oil tanks, fail to meet fire extinguishing requirements, and quickly extinguish fires of difficult-to-combustible materials, and achieve reduced gas supply costs, easy promotion, and uniform size Effect

Active Publication Date: 2021-08-27
XIAN UNIV OF SCI & TECH +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the oil tank fire accidents of petrochemical enterprises, the steam evaporated from the liquid in the oil tank fire has the characteristics of high temperature and flammability; Combustion-supporting components, so it is difficult to quickly extinguish the combustibles floating in the air, and there is a problem of secondary re-ignition, so the use of a single fire extinguishing agent cannot effectively extinguish the fire of the oil tank liquid
Effective fire extinguishing agents for combustibles floating in the air are usually gaseous fire extinguishing agents with space fire extinguishing capabilities, such as inert gas fire extinguishing agents with components such as argon, nitrogen, and carbon dioxide, but carrying a variety of fire extinguishing facilities brings many advantages to fire extinguishing work. At the same time, the existing carbon dioxide foam fire extinguishing system has the problems of complex equipment and inconvenient implementation, which cannot meet the existing fire extinguishing needs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A multi-agent combined fire extinguishing system and method based on liquid carbon dioxide
  • A multi-agent combined fire extinguishing system and method based on liquid carbon dioxide
  • A multi-agent combined fire extinguishing system and method based on liquid carbon dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0084] Such as figure 1 and figure 2 Shown, a kind of multi-agent combined fire extinguishing system based on liquid carbon dioxide of the present invention, comprises packing liquid CO2 2 Dewar 3, the Dewar 3 gas-phase CO 2 Outlet via gas phase CO 2 The main pipeline 4 is connected with the first three-way valve 10, and the gas phase CO 2 The main pipeline 4 is sequentially provided with a pressure reducing and stabilizing valve 5 and an electromagnetic shut-off valve 9; the first three-way valve 10 separates the first gas phase CO 2 pipeline and second gas phase CO 2 Pipeline two-way pipeline;

[0085] The first gas phase CO 2 The pipeline is provided with a first manual ball valve 12, a one-way valve 32, a metal rotameter 14, a first small flow regulating valve 21 and a one-way valve 32 in sequence, and is finally connected to the air intake pipeline of the gas-liquid mixing chamber 15;

[0086] It should be noted that the settings of the first manual ball valve 12,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multi-agent combined fire extinguishing system and method based on liquid carbon dioxide. 2 Dewar, Dewar gas-phase CO 2 The outlets are respectively connected to the water tank, the foam liquid tank and the gas-liquid mixing chamber, and the liquid phase CO in the Dewar bottle 2 The outlet, the liquid outlet of the water tank and the foam liquid tank are all connected to the gas-liquid mixing chamber, and the gas-liquid mixing chamber is connected to the foam spray gun; One, fire extinguishing for class A fires: use carbon dioxide foam and water in sequence; for class B fires: use carbon dioxide foam and carbon dioxide gas for extinguishing fires in sequence; method for extinguishing class E fires: use carbon dioxide gas and fine water in sequence Fog puts out the fire. The system of the invention can operate with a weak current supply, can quickly extinguish Class A, Class B and Class E fires, has space fire extinguishing capability, and solves the problem of recombustion when a single fire extinguishing agent is used to extinguish a fire.

Description

technical field [0001] The invention belongs to the technical field of fire fighting, and in particular relates to a multi-agent combined fire extinguishing system and method based on liquid carbon dioxide. Background technique [0002] Foam fire extinguishing agent is a kind of fire extinguishing agent that forms fire extinguishing foam by chemical or mechanical methods. Its main principle of action is to form a layer of dense foam on the surface of combustibles (flammable liquid or solid), and realize fire extinguishing by covering suffocation, cooling and isolation. , is an effective fire extinguishing agent for extinguishing flammable liquid and solid fires. At present, compressed air foam is widely used in fire rescue, such as compressed air foam fire trucks, compressed air foam fire extinguishing systems, and compressed air foam fire extinguishers. In the oil tank fire accidents of petrochemical enterprises, the steam evaporated from the liquid in the oil tank fire ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A62C31/00A62C31/28A62C37/00A62C5/02
CPCA62C5/002A62C5/02A62C31/00A62C31/28A62C37/00A62C99/0027A62C99/0036A62C99/0072
Inventor 刘长春邓天刁吴鹏志罗振敏邓军程方明王伟峰白磊姜桦黄林远
Owner XIAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products