Huang Yi , this is the responsibility of the accident together . The main reason is the pipeline road and drainage culverts Interchange thinning pipeline corrosion cracking , oil leakage , flow into drainage culverts , the volatile oil and gas mixed with air to form culvert which a flammable gas, in a relatively closed space gathering site disposal personnel are not proof of a hydraulic hammer , drilling in the culvert cover crushing hit sparks generated detonated culverts oil and gas .
[ Related ] Qingdao pipeline explosion aftermath ..
After the explosion due to the leakage of oil during more than seven hours , a mixed gas drainage impact intrusion oil leakage has been formed by rapidly spread among culverts , diffusion, resulting in a continuous explosion occurs in a wide range .
Huang Yi pointed out , Qingdao pipeline explosion accident exposed problems in four areas : investigation and management of risk is not serious in this regard , businesses, government regulators have a responsibility ; emergency treatment ineffective ; violation of regulations ; accident location planning and design is unreasonable, this design department , municipal authorities can not shirk responsibility.
November 22, 2013 3:00 pm, located in Qingdao Economic and Technological Development Zone, Qinhuangdao Road and East Road Interchange Yellow Zhaitang Island Pipeline pipeline rupture, some of the oil into municipal water pipelines ; 10:30 , rainwater pipes occur deflagration accident caused a total of 62 people were killed and 136 people were injured , the direct economic loss of 750 million yuan .
Reproof
Country risks identified 20,000
Yesterday, Huang Yi said, Qingdao after the accident, the State Security Committee to deploy special inspection. Currently China has formed 655 Oil and Gas Pipeline , the total mileage of 102,000 kilometers , some of the already running for 20 years, some even up to 40 years , and some pipes have corroded , thinning, and some pipelines and the city pipe network overlap , some questions shocking. For the problems identified , the State Administration of Work Safety has issued a rectification notice .
Administration of Work Safety Secretary Wang Hao three water regulators said the inspected nearly 3,000 oil and petrochemical companies and libraries , to identify risks nearly 20,000 , hidden in the rectification .
Analysis
A planning unreasonable " Huangdao pipeline buried at least 11 "
Planning and design is unreasonable, planning and construction of the accident location is very confusing , oil and gas pipelines and the surrounding buildings too close, especially with the culvert cross pipeline engineering design is unreasonable, there are significant risks. So the design department , municipal authorities can not shirk responsibility. - Huang Yi
" Huangdao pipeline situation is very complicated , at least 11 various types of pipelines laid , more crowded , some pipelines cross ." Qingdao Municipal Government Deputy Secretary-General GUO Shan at last year's press conference had said . November 26 last year , the Beijing News reporter at the scene saw the mining spill point , floating through the stormwater culvert pipes , in addition to a dozen pipelines , pipeline intersection.
Statistics show that the yellow double line Eastern oil pipeline in 1986 and put into use . Explosion culverts built in 1995 , after three repairs, 2011 by the nullah changed culverts.
Reporters get a display material , Qinhuangdao Road and Zhaitang Island Street intersection , pipelines crossing culverts , some of the oil into the sewer directly from the breach . " This design is a serious breach ." Some experts have evaluated.
It is understood that the staff had responded Sinopec , when sewer reconstruction , the government did not inform their specific rehabilitation programs.
Some experts pointed out that the culverts to the sea pipelines low elevation 0.07 m . On the day when the oil spill , tidal salt water intrusion caused by high tides , the formation of a confined space . Crude oil is also part of the reflux .
The combustible gas mixture of crude distribute sewer will produce biogas , enclosed space in case of Mars is highly explosive .
2 is not completely rectification "has detected 299 defects point"
Investigation and management of risks is not serious, is not responsible , especially for major hazard pipelines and drainage culverts interchange exists no thorough investigation and rectification , in this regard , corporate responsibility and government regulators have a responsibility . - Huang Yi
Syndicated news reporters De Dao and Di Cailiao showed crude oil pipeline leak because of road and drainage culverts Interchange thinning pipeline corrosion cracking . In the lower part of the pipeline , there is a significant gap, opening the smallest thick 3.2mm, about 0.6 meters , over two palm . Vulnerabilities in advance not detected.Wholesale masking tape
Pipeline gap and how it formed?
Sinopec relevant staff explained , using the 1986 Eastern Pipeline Huang has 27 years of construction , pipeline aging is inevitable ; incident occurred near the pipeline from the sea , tidal change , alternating wet and dry environments , corrosion intensified ; drains into a culvert by a ditch after wet conditions at the junction of the pipe , more corrosion ; since June 2013 , municipal engineering Qinhuangdao Road integrated maintenance regulation , frequent heavy construction vehicles rolling road , there is no protection , pipeline coating damage.
East pipeline company realized early on that yellow double line are unsafe . In 2013 testing , the yellow double line for East defects detected 299 points , 42 points recommended maintenance , including five recommended maintenance from the lot line close to the incident .
However, a staff member had told the Beijing News Huangdao depot reporters: " companies want to repair ( underground ) lines , and government departments need to communicate the approval process is cumbersome , great views of the local people ." Companies do not have an agreement with local government consistent pipeline corrosion missed repair.
3 inadequate disposal " Government does not know could explode ."
Inadequate emergency response . Oil spill to deflagration about eight hours , from the enterprise to the relevant government departments during the accident risk judgments mistakes , do not take timely measures to alert road closures , no timely notice mass evacuation perimeter. - Huang Yi
Huangdao district had to develop a " dangerous chemicals of major emergency rescue plan " requirement , after the accident , the accident reported the contents of the unit includes not only the accident categories , also including possible harm occurred.Masking tape
Syndicated news reporters De Dao and Di Cailiao show that the relevant departments oil leak accident that is learned through the 110 command center . Before the explosion , the relevant departments have failed from petrochemical pipeline company is aware of the situation in this regard and disposal of oil spills , and other hazards that may occur . "Because do not have more detailed information , the relevant departments to take emergency measures to rescue the disposal of the general oil spill by conventional practices ."
Sinopec has been questioned , with the expertise of the staff should know in a confined space gas mixture may cause an explosion , why no preventive measures ? Expert staff had explained , did have oil spill , but rarely cause gas mixture explosion incident , maintenance staff did not realize the pipeline will be below water pipes in confined spaces downside to tidal action . "There is no precedent for such an accident , no practices ." After the oil spill , pipeline companies to prevent fires, the company only sent firefighters waited at the side. But ultimately firefighters also sacrifice.
4 violations of regulations useless proof hammer drilling site
Violation of regulations , on-site disposal personnel did not detect oil and gas within the culvert on dangerous operations , and the use of non- explosion-proof tools for the construction , resulting in oil and gas explosions. - Huang Yi
Beijing News reporter at the scene of the explosion interviews surrounding the masses had five minutes before the explosion , the scene was smoking ; site repair staff with a large picks, hammers and other non- explosion-proof tools and construction.Washi tape
Syndicated news reporters De Dao and Di Cailiao show that the mining process did not detect the concentration of gas mixture . As a rule, when you fill the gap , use explosion-proof tools, maintenance personnel also prepared . But mining, cement slab above the culvert was not able to get open . So the use of maintenance personnel and non- explosion proof excavator hammer drilling in concrete precast panel , causing an explosion.Sellotape
没有评论:
发表评论