20 dead 24 serious injuries! The accident is rescued already ended, explosive reason gradually enter

Zhejiang lukewarm mountain " 6.13 " accident of explosion of groovy tank car rescues an end, the accident sends 20 people to die 24 people injury is serious, 172 people hospitalization.

The net conducts explosive case study

Carry infusion changes Cong Ningbo of gas chamfer tank car to be installed to Wen Zhourui, come out from the freeway when 104 countries, because accident car enters full line speed per hour to spend,preliminary understanding is fast, to lose control of one's vehicle, valve box bumps by serious side, liquid gas leak, cause rear after two cars on fire, tank car also begins on fire. Can without lid gets roast cause boiling of the gas phase inside coal tub to explode (take off normally according to reporting tank car relief valve to also fail, lost the) of the last opportunity that prevents the explosion inside coal tub. According to newest the Ministry of Public Security the bureau that make a valve is reported, car adds up to produce explosion twice, occupying netizen analysis is the gas phase inside first time canister the chemical explosion after pressing the liquefied petroleum gas after the physics that cause explodes and the 2nd times can without lid blows up to encounter air exceeds after boiling (wait for the government to confirm) . This accident is close come 20 years the accident of explosion of tank car of liquefied petroleum gas in travel of the most serious one start shipment. But investigate its reason, remain pass into full line speed fast this one - simple origin. Of the loss big, of origin simple, your person clutchs wrist.

Explosion produces process analysis

The liquefied petroleum gas is how of leak, how does explosion produce?

1, the first perspective follows recorder of drive a vehicle pat

In video, there is money of a box before the car of recorder of use drive a vehicle, again in front it is liquid gas tank car. When 31 seconds, liquid gas tank car produces leak suddenly in full line turning (Bai Wu rises from the car case) , the thrust whole that subsequently whole can without lid is produced by leak is rolled out right upper part flies away (can without lid has a few tons at least, this power is too great, astonishing) , bai Wu waves medicinal powder enveloped the box van in front, those who have recorder hind car driver gets off... , 2 minutes of 18 seconds, namely the 109 seconds after leak happening, explosive happening.

See the 31 seconds of video carefully on computer control please, whole can without lid resembles a missile same, on the buttock (coping of a side of head of car of front of can without lid) risking Bai Yan, rise high into the air rises, cross rightward of box van the top of head to fly from full line...

Accident board of inquiry says, did not produce traffic accident. So, front of can without lid (a side of front car head) why to produce leak? This place is normal for won't bump, there is what the expert thinks speed strikes aspect too quickly to say to should not hold water before.

So, the reason may be: Front of can without lid because some kind of reason (for instance blemish of quality of material strain, production) burst, or a certain valve defeats front, caused leak, pressure freeboard (exceed outfit, high temperature, the integrated element such as invalidation of pressure release a powerful person) below case, leak happening brings about can without lid namely at the same time whole fly.

2, far mobile phone films

This Bai Wu, demonstrative liquid gas is in rapid leak (the water mist that the absorption of heat when liquid aerification brings about condensation of the lunt in air to generate) , mix with air, wait for spark, one have spark can burn or light explode.

3, video of monitoring of high speed crossing

From video knowable, when the 2nd car advances to circle slope falls, just appear ever since bright fire; After 8 seconds, igneous situation greatens suddenly, photograph later acuteness like the head shake.

This also is meant, after the liquid gas of leak treats igneous cause, happened to deflagrate first. After 8 seconds, deflagrate the high temperature of generation brings about be heated of liquid gas canister, pressure lifts quickly (fluid photograph is boiling) , produce physical explosion or can without lid to be torn off greatly, the liquid gas with ejective quickness and air mix, produced chemical explosion.

4, mobile bomb

Liquid gas tank car can say the big bomb that is a shift. Its the biggest risk depends on, if produce traffic accident, can without lid once burst, liquid gas is met fast leak. The biggest feature inside this appears namely a Bai Wu (liquid gas turns into by the liquid gas, bulk enlarges 250 times, a large number of absorption of heat, the lunt agglomeration that makes air medium is water) . See when you when having Bai Wu, do not talk, die ground runnings.

To common people, hear in front liquid gas tank car produces an accident, the first reaction is: Do not go looking, clutch leave, yue Yuanyue is good. See have Bai Wu, to turn over directional tantivy, had jumped over more quickly.

To firemen, the first reaction wants vigilance namely its leak, condole rises in can without lid, when pouring coal tub, should evaluate above all whether to meet burst leak; Should have leak already when on fire, do not want to put out, want to drop in temperature to coal tub continuously; If feel ejective pressure is too great, backtrack is well-advised choice.

5, chemical accident early-warning releases a system to should be built

Chemical car gave an issue on the road, a very crucial thing, namely: Want to tell its around the person inside a certain number of distances, this is what thing had an accident, want how to do. Rely on a person to cry, rely on to call, have not enough time, for instance the Huaihe River a lot of years ago installs accident of fluid chloric tank car, the villatic personnel that brings about its ahull direction is many casualty (29 people die, 2200 people are treated) . Want to build a fast information to release early warning system, the person that lets periphery leaves quickly, or on the spot is avoided (the glass that prevents explosive bow wave to bring about, drop content casualties) , the life that assures staff with utmost is safe.

Experience trouble firm ever sufferred punishment 11 times, total fine amount makes an appointment with 11 thousand yuan only

Journalist understands from rescuing spot, because still coming to help, the circumstance of short duration that breaks couplet driver at present is indistinct. Occupy journalist additionally to check, luck of city of Wen Zhou of vest in of experience thing car installs city luck in relief danger to taste carriage limited company. Because was not mixed according to formulary cycle,the industrial and commercial information that register shows this company frequency second detect into travel vehicle integral performance and the reason such as technical grade assess, had gotten administration is punished 10 times. It is two to did not implement system of safe production management among them, did not press formulary cycle and frequency 4 times second detect into travel vehicle integral performance and technical grade assess. Total fine amount exceeds 11 thousand yuan.

Company of experience work tank truck registers capital only 595 thousand yuan

The groovy tank car of thing of the experience in accident of explosion of tank car of chamfer of high speed of G15 Shenyang sea belongs to luck to install city luck in relief danger to taste carriage limited company, this company held water on March 5, 2003. According to " weather eye is checked " show, this company scope of operations tastes information of freight, car to seek advice from service, car to rent a service to wait for danger, register capital 595 thousand yuan.

Hai Enfa points out: The backside of each casualty, have slight accident and 300 abortive foreboding and 1000 accidents hidden trouble 29 times necessarily. This enterprise tastes a transport company as a danger, 3 years be punished often, ever can undertake be rectifyinged and reform effectively, whether to promote somewhat from the responsibility consciousness of personnel of course of study? Whether function branch just had penalty and to whether function branch just had penalty and take further step? Why does hidden trouble continue even heavily start off? Believe the investigation process as the accident, the truth of the accident will emerge stage by stage come out.

June is month of our country safe production. But in last few days inside each district has produced safe accident many cases. This accident of explosion of tank car of lukewarm mountain chamfer is more ring noisy alarm bell to safe production again with deafening means.

Countrywide each district should be Buddhist monastic discipline with this, hold good epidemic situation to prevent accuse, answer of go back to work produces the balance drop with safe production, begin the safe big inspection of serious, full and accurate, with strong hidden trouble the platoon is checked reach rectify and reform measure, fall safe production to real point, the check business, fluky heart from personnel of course of study, the superintendency branch that treats those derelict, paralytic carelessness gravely and relevant staff member, form the intense awe force of safe code, put an end to serious and safe accident to happen once more.

Origin: Daily safe production