[introduction] October 9, 2016 13:50, Jinling Petrochemical plant operating in the process of reforming feed filter flange leakage fire, causing no casualties, the company immediately launched an emergency plan. There are on-site disposal, the fire has been controlled, without the occurrence of secondary accidents of safety and environmental protection, the normal operation of other devices. Involving 180 thousand tons 354 thousand tons of benzene, toluene, xylene 290 thousand tons, PX70 million tons of aromatics plant at the end of August a month maintenance plan, is expected to restart time will be postponed to … … … …

Image source Yangtze Evening News
Scene of the explosion


Image source in the new network
Nanjing Jinling Petrochemical refinery fire fighting scene
Nanjing City Public Security Fire Department official informed micro-blog: this afternoon in Qixia District of Nanjing Jinling Petrochemical Nanjing refinery production plant deflagration, fire command center, two mobilization secret Xianlin, Maigaoqiao, stonegateway and Jinling Petrochemical full-time team rushed to the scene for disposal.
Fortunately, no casualties in the process of the entire process!
Historical review
As early as 1993, Nanjing Jinling Petrochemical refinery storage tanks had exploded, and 2 workers were killed.

Accident after
In October 21, 1993 13, Jinling Petrochemical Industries Co refinery oil branch semi-finished shop workers Huang Moumou during the shift, found No. 310 tank oil level has reached 14.21 meters, close to the warning level 14.30 meters, yellow immediately to the plant total scheduling by a report to the general schedule please shows 310 tanks of gasoline blending amount. According to the total scheduling instructions, Huang Moumou into the oil tank will be switched to No. 304 tank.
At 13:30, yellow in the oil tank to 31O for gasoline blending process ready, this should open the 310 tank D400 outlet valve, but mistakenly opened the 311 oil tank D400 outlet valve.
15 pm, Huang 11A to open pump self circulation blending of 310 tanks, due to stagger the No. 311 B400 outlet valve in this tank 310, not in the self circulation, but no. 311 gasoline tank is pumped into the No. 310 tank.

15:40, Chen Moumou instrument on the screen of the computer found No. 310 tank oil level rising, then began to &ldquo &rdquo computer; high level alarm; Chen, immediately let Huang to the tank to check No. 310 tank oil level, yellow was mistaken for a computer is not accurate, not to check does not take other measures.
16, in violation of the provisions of the shift, no shift in oil field, also did not verify the tank process.
At 17:50, the 310 oil tanker began to run outside, some gasoline volatile, the formation of explosive mixed gas in the air.
At 18:15, Jiangsu County of Hongze Province, the second construction company worker Lu Moumou driving tractor passing tank No. 11 road, exhaust gas explosion in Mars in the air explosion, Lu Moumou was burned to death on the spot, shift workers were badly burned died. 310 oil tanks immediately burned, 17 hours after being extinguished.

Accident consequence
The accident in Nanjing dispatched firefighters, the people's Liberation Army, armed police officers and soldiers and cadres and the masses of more than 3 thousand people, for 17 hours, until 11 pm the next day to extinguish the fire, the accident caused 2 deaths and direct economic losses of about 390 thousand yuan.
Accident cause analysis
(1) the accident was an explosion of a gasoline tank, under the action of a fire source, the space explosion occurred in the first place, and then caused the explosion of fire accident.
(2) the cause of explosion fire accident, is the day shift operator No. 310 tank additive cycle operation, the outlet of the main control valve opens 310 cans, but mistakenly No. 311 tank outlet of main control valve open, causing the oil into the tank No. 311 hit No. 310 tank; after continuous the alarm in the computer case, did not cause the operator's attention, the shift is not strict, after the accident the continuation of state succession, resulting in No. 310 tank roof overflow, a large area in addition to the gasoline vapor diffusion tank farm and its scope, as the accident potential condition.
(3) tractor exhaust into Mars explosion area is the explosion ignition source fire accident.
Dealing with the responsible person of the accident
Huang Moumou to work irresponsible, error caused by open valve, tank 311, gasoline tank 310, sneaked into the computer, when the alarm, yellow without on-site verification, let down, resulting in the No. 310 oil tank overflow, and a violation of the scene shift system, double point inspection tour system that failed to timely find and stop error process. Huang Moumou on the fire and explosion of this big bear direct responsibility. Its acts violate the criminal law 114th of the set, constitute a major liability accident crime.
Qixia District People's Court of Nanjing city in accordance with a major responsibility for the crime of crime sentenced to 2 years imprisonment Huang Moumou, suspended for 2 years.
Two, oil refinery fire characteristics
Usually the refinery fire fire is more complex, often accompanied by the explosion, appear three-dimensional, large area, fire, explosion and other complex reignition, burning form, easy to cause casualties and property losses.
1, burning fierce
Most of the combustion substances in refinery are flammable gas, flammable or combustible liquid, and are in high temperature and high pressure. The occurrence of the disaster, the material burning speed, in a short period of time can make the whole plant area, the entire workshop in flames, burning violently. For example, flammable or combustible liquid combustion, the flame spread along the burning liquid surface up to 0.5~2m/s.
2, the explosion caused damage
(1) the type of explosion
(2) the chemical explosion of combustible gas;
(3) physical explosion of equipment;
(4) device negative pressure blast
(5) improper fire control measures to trigger an explosion
3, the resurgence of complex explosion
The fire flame eliminated, due to temperatureIf there is a high, flammable liquid overflow, immediately again; oil steam and air mixture formation of explosive gas explosion caused by strong will, the resurgence of the fire.
4, flowing flame
Flammable liquid inside the device from the device rupture leakage from the container from the top down high-speed jet, from high to low flows along the ground or downstream into the ditch, causing the fire by the vertical and horizontal ditch and culvert and arranged in a crisscross pattern in the development of the trend to expand.
5, flame floating
Combustible gas under high pressure can strongly by orifice or cracks in containers of high-speed jet, the torch flame was swinging type floating in space, the flame even up to a few meters to ten meters, direct barbecue production equipment and building components.
In June 2000, Daqing oil refinery, oil pump, oil leakage caused by large flow fire, because floating flame. To cause a fire in a decompression tower at 50 meters.
6, flame reentry
For some reason the combustible gas leak and diffusion to the space, or flammable and combustible liquid flows and a large amount of volatile combustible gas, flame and high temperature when the object is ignited or explosion flame will burn back quickly to the reverse direction. Especially at the time of the fire, if the source is not cut off the combustible material, even after the fire, there are likely to occur again, the explosion, in the opposite direction to the flame of combustible fuel to air flow and liquid flow.
7, flame multi-point
Production device in the flame high temperature barbecue, there are many broken cracks, flammable gas or flammable liquid from the tower, the kettle, furnace and pipe and other damaged parts overflow after combustion, the formation of multiple fire point.
8, the three-dimensional nature of fire
Lighter than air combustible gas from the floor holes, ventilation pipes from the bottom flow, more than the air heavy flammable gas from top to bottom diffusion, in case of fire, high temperature, etc., can form the three-dimensional nature of fire.
Flammable or combustible liquid flowing down from the vertical or in the case of the platform, the ground and so on to the horizontal flow of the spread, the fire will flow along the flammable flammable liquid material flowing into the rapid development and spread.
Three, keep in mind that the oil refinery fire and explosion safety 18 provisions to prevent the recurrence of history
The refinery plant layout, production equipment and device in the tower container, heating furnace, pump room, computer room and material conveying pipelines, should comply with the design specifications of chemical fire refining. To adhere to the main project and safety facilities, labor protection equipment at the same time design, while the construction, and put into operation.
To the use of advanced production technology and reliable self interlocking control system perfect, from the technology, equipment and instrument automatic control hardware according to the essential safety requirements for the design, to ensure safe production and eliminate the occupation disease harm. For the refinery has been put into operation, but also continue to improve safety measures to eliminate all kinds of accidents.
Remember 18 rules:
1, all flammable and explosive materials equipment, pipeline system, the application of inert gas purge, such as steam, nitrogen stripping sweep, prohibit the use of air purge.
2, flammable liquid is prohibited from discharging into the sewer, such as the need for external discharge should be recycling or treatment measures.
3, high temperature oil efflux is strictly prohibited, special circumstances need to discharge when the temperature must be reduced to below the liquid natural temperature, and to take preventive measures.
4, into the flammable and explosive area must wear anti-static clothing, not to wear clothes, to prevent static fire and explosion.
5, flammable gas compressor is strictly prohibited to draw negative pressure, to prevent the air into the body to produce explosive mixture.
6, we strengthen the management of fire, prohibited illegal operation, such as the use of fire and sand, turbine, cutting machine, spraying machine, electric drill, electric furnace can produce fire operation must be handled according to the provisions of the fire procedures.
It is prohibited to wash the machine, 7, light oil equipment, Sassafras pipeline, to prevent accidents caused by static electricity.
8, discontinued a, B type of equipment, the pipeline has not been completely processed, the closed heating is strictly prohibited.
9, flammable gas, liquid equipment, pipeline is strictly prohibited to remove the pressure switch, flange, and so on.
10, in the area where there is fire work, the discharge of flammable gas or liquid is strictly prohibited.
11, the transmission is easy to produce electrostatic powder, solid material equipment, pipeline must take electrostatic grounding measures.
You 12, a and B are easy to distribute steam production of combustible gas and combustible liquid places, cable should be laid overhead, such as the need for cable channel, to prevent the deposition of combustible gas and combustible liquids into the ditch, sewage flow measures into the transformer and distribution room automation instrument channel inlet and wall through hole should be. Packing seal.
13, the use of water, water vapor or oxidation in the air can cause combustion or explosion of the material, there should be nitrogen fire.
You 14, to prevent the high pressure system to the low pressure system to the industrial system channeling, life system of flammable gas channeling channeling, want safety system.
15, corrosive material pipeline shall not be above the other pipeline.
16, strict labor dress and the correct use of protective equipment.
17, strict implementation of “ fire and explosion of the ten ban ”.
You must be 18, where the production of fire, fire management system implementation details.
Process equipment network finishing release, reproduced please indicate the source.