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Method and system for evaluating explosion danger range of stored chemical raw materials or products

A technology for explosive hazards and chemical raw materials, which is applied in the field of evaluation methods and systems for storing chemical raw materials or product explosion hazard ranges, and can solve the problems of not assessing the range of chemical fire and explosion hazards

Pending Publication Date: 2021-09-10
江苏昆仑互联科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no method and system for assessing the range of chemical fire and explosion hazards

Method used

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  • Method and system for evaluating explosion danger range of stored chemical raw materials or products
  • Method and system for evaluating explosion danger range of stored chemical raw materials or products
  • Method and system for evaluating explosion danger range of stored chemical raw materials or products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Embodiment 1: Illustrate with the analysis and calculation of vapor cloud explosion (VCE) of water gas storage tank

[0084] Since the raw water gas used in the synthetic ammonia production plant is a mixture of carbon monoxide and hydrogen, it has the characteristics of low flash point, low boiling point, wide explosion limit, and low ignition energy. Once leaked, there is a high probability of vapor cloud explosion.

[0085] If the water gas storage tank encounters an open flame due to leakage and a vapor cloud explosion (VCE) occurs, and its storage capacity is 70%, then it is 2.81 tons, then its TNT equivalent is calculated as:

[0086] Vapor cloud explosion TNT equivalent coefficient, A=4%;

[0087] The total mass burned when the vapor cloud explodes,

[0088] W f =2.81×1000=2810 (kg);

[0089] Detonation heat of water gas, with CO 30%, H 2 43% (hydrogen is 1427700kJ / kg, carbon monoxide is 10193kJ / kg): take Q f =616970kJ / kg;

[0090] TNT's explosive heat, ta...

Embodiment 2

[0121] Embodiment 2: as figure 2 as shown,

[0122] Transmit V1101 pressure Pi1101 to PLC to Wf1 through pressure transmitter;

[0123] Transfer Ti1101 to PLC to Wf1 through thermocouple or thermal resistance;

[0124] Transmit Li1101 to PLC to W through magnetic flap or ultrasonic or radar level gauge f1 ;

[0125] Transfer some data of V110n to PLC to W fn ; Among them, n represents the volume of N storage tanks in V1101n; (the solvent density of the storage tank is entered into the system by the system);

[0126] By combining the above data, W can be calculated f1 ----W fn data, and then calculate the data W f .

[0127] At the same time, the above data should be converted into the data in the storage tank and its pipeline, as well as the data in the production device.

[0128] R1=13.6(W TNT / 1000) 0.37=13.6((βA W f Q f / Q TNT ) / 1000)0.37 (1)

[0129] In the formula:

[0130] W TNT ——TNT equivalent of vapor cloud, kg;

[0131] A——TNT equivalent coefficient o...

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Abstract

The invention discloses a method and a system for evaluating the explosion danger range of stored chemical raw materials or products, and the method comprises the steps: collecting the name and type of combustible liquid or combustible gas through corresponding equipment, mass, TNT equivalency factor of corresponding steam cloud, combustion heat, and TNT explosion heat, collecting a peak value of shock waves causing severe injury of personnel, a peak value of shock waves causing light injury of personnel, environment pressure and the like, and giving explosion danger ranges of a death radius R1, a severe injury radius R2 and a light injury radius R3 by applying a VCE (Vapor Cloud Explosion) model. On one hand, reference is provided for chemical industry parks and chemical industry enterprises to safely manage chemical raw materials or product storage areas, on the other hand, reference is provided for an emergency management department to formulate a safety rescue range for fire fighting, and fire fighting and disaster relief work can be conveniently completed under the condition that safety is guaranteed.

Description

technical field [0001] The invention relates to a method for evaluating the range of losses caused by explosions, in particular to a method and system for evaluating the range of explosion hazards for storage of chemical raw materials or products. Background technique [0002] On the one hand, the chemical industry occupies an important position in the national economy of various countries, and is the basic industry and pillar industry of many countries. The development speed and scale of the chemical industry have a direct impact on all sectors of the social economy, and the world's annual output value of chemical products has exceeded 1.5 trillion US dollars. On the other hand, since the chemical raw materials and chemical products produced, processed and stored by chemical enterprises are highly flammable, explosive and toxic, the situation after a fire or leakage accident is complicated, and the scope of explosion, recombustion and reexplosion is large. , The speed is f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F16/29
CPCG06Q10/0639G06F16/29
Inventor 刘怀平孟庆可周必华韩奇勋
Owner 江苏昆仑互联科技有限公司
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