Mining constant-pressure liquid carbon dioxide fire preventing and extinguishing device and method

A technology of liquid carbon dioxide and carbon dioxide, which is applied in the directions of safety devices, fire prevention, dust prevention, etc., can solve the problems of bulky external vaporizer, pulsed liquid output, and impact on life safety, so as to improve fire extinguishing efficiency, safety, and guarantee life safety effect

Pending Publication Date: 2021-10-19
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

[0003] (1) When the existing storage tank releases liquid carbon dioxide, the internal pressure will continue to decrease. When the pressure is less than 0.9MPa, the liquid carbon dioxide will solidify, resulting in blocked pipelines and unable to continue to work;
[0004] (2) When the pressure is too low, an external vaporizer is usually used to vaporize liquid carbon dioxide and release it to the hidden danger area. The fire extinguishing effect of vaporized carbon dioxide is much lower than that of

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
  • Mining constant-pressure liquid carbon dioxide fire preventing and extinguishing device and method
  • Mining constant-pressure liquid carbon dioxide fire preventing and extinguishing device and method
  • Mining constant-pressure liquid carbon dioxide fire preventing and extinguishing device and method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.

[0029] like figure 1 , figure 2 Looking:

[0030] Dedicated liquid carbon dioxide storage tank

[0031] Including: pressurized trachea 5, heat insulating layer 8, anti-collision housing 9, low temperature liquid storage tank 10, overflow tube and valve 11, pressure gauge and safety valve 12, inward, ventilation line and valve 13, into, back liquid Pipe valve 14, pressurized liquid tube 15.

[0032] The main body is the same as that of the general liquid carbon dioxide, which is ...

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 mining constant-pressure liquid carbon dioxide fire preventing and extinguishing device and method. The mining constant-pressure liquid carbon dioxide fire preventing and extinguishing device comprises a low-temperature liquid storage tank, wherein the low-temperature liquid storage tank communicates with gas inlet and return pipelines and valves, liquid inlet and return pipeline valves, an overflow pipe and a valve, gas inlet and return pipelines on the gas inlet and return pipeline valves are provided with pressure gauges and safety valves, the low-temperature liquid storage tank communicates with a pressurizing gas pipe and a pressurizing liquid pipe, the pressurizing liquid pipe communicates with a stainless steel heat exchange pipe arranged on an oil bath box, and an exhaust port of the stainless steel heat exchange pipe is connected through the pressurizing air pipe. The liquid carbon dioxide fire extinguishing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of coal mine fire prevention and extinguishing, and in particular relates to a mine-used constant-pressure liquid carbon dioxide fire prevention device and method. Background technique [0002] In recent years, with the mining of deep and medium-thick coal seams, in order to greatly improve the production efficiency of coal mines, the fully mechanized top-coal caving technology has been promoted and applied. Due to the limitation of top-coal caving technology, there are disadvantages such as large caving height in the goaf, large amount of coal residue, and serious air leakage, which lead to frequent coal spontaneous combustion accidents. At present, it has become one of the main factors restricting the development of the coal industry, and it is also a major issue in coal mines. One of the hidden dangers of production safety. Over the years, the development of coal fire disaster prevention methods has main...

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
IPC IPC(8): A62C3/00A62C31/00A62C31/28A62C37/00E21F5/00
CPCA62C3/00A62C31/00A62C31/28A62C37/00E21F5/00
Inventor 金永飞郭军许延辉张林江费金彪王喆张泽杨程帆程明
Owner XIAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products