When Zheng Chunsheng heard the dispatcher of the detachment say that the Xingang oil depot area was on fire, he glared in his heart, and suddenly broke out in a sweat. Zheng Chunsheng is the full-time commander of the fire scene of the Dalian Public Security Fire Detachment. He had experienced more than 3,000 fires and survived six times, and his instincts told him that this was the most dangerous disaster. When Zheng Chunsheng was the head of the combat training section of the detachment, he participated in the formulation of the drill plan for fire fighting in the Xingang oil depot area. The drill was about what to do after a fire, but no one could imagine or dare to imagine what would happen if it actually caught fire.

There are not only hundreds of large crude oil storage tanks and high-risk chemical tanks on the Dagushan Peninsula, but also large chemical enterprises such as Fujia, Western Pacific Oil Refinery, and Qilu Petrochemical. Who would have imagined what would happen after a fire? I don't dare to think about it.

On the way, the command center of the detachment mobilized all the vehicles to extinguish the chemical fire, the foam trucks and the only remote water supply system of the national fire brigade at one time. This system was developed by the Netherlands, worth 27 million yuan, and is generally used for drainage and water supply projects.

The car drove in the direction of Dagu Mountain, and as soon as he entered the development zone, Zheng Chunsheng saw that the sky over the fire was not covered with smoke, but a cloud of smoke. The smoke gathers hundreds or thousands of times, forming clouds of meteorological significance. Looking back, the sun was shining in the direction of Dalian, while the smoke and clouds of Dagu Mountain covered the sun, and all the vehicles inside had turned on their headlights.

The asphalt pavement of the fire road is cracked into lumps, as if it has been ploughed, and the asphalt road will not be so deformed without a high temperature of several hundred degrees. Vehicles entering the fire site are always front facing outwards and evacuate at any time if a large explosion occurs.

Before the explosion of the pump room, the radio heard the order of the detachment leader Cong Shuyin to retreat immediately, Zheng Chunsheng just heard this order, and he still had questions in his heart, why did he retreat? At this moment, smoke rose from the sky, and a large black mushroom cloud protruded from the smoke, with a blinding light in the middle, followed by an explosion. A pillar of fire of more than 100 meters rose at the site of the explosion, and if the retreat was not timely, I don't know how many officers and soldiers would have died.

Pillars of fire soared into the sky, and it rained heavily, and fist-sized eggs burst out like stones. The rain of fire was mixed with the rain of oil. Crude oil is different from gasoline in that it volatilizes quickly and burns it out. Crude oil contains a wide variety of substances and various toxic gases. It is non-volatile, water-containing, and erupts with fire and oil like an oil well. When crude oil reaches a high temperature of thousands of degrees, it produces gas and emits a piercing scream.

Many people have a strong impression of the smoke at the July 16 fire, which is not fog, but particles. If you slow down the smoke from the July 16 fire with a camera, you will find that the smoke particles rise in a straight line, which is another form of oil.

After the officers and men withdrew, the fire flowed to the No. 37 and No. 42 oil tanks. Immediately afterwards, the drainage ditch opposite the pumping station exploded, producing a hot gas that rushed to the sewage well. Almost all of the sewage wells emitted columns of white mist, which then exploded, sending the manhole covers flying into the sky.

After the explosion and fire of the No. 103 tank, the crude oil heated up rapidly and was transmitted to the pump room, and the addition of desulfurizer beyond the standard accelerated the flow of crude oil, resulting in the explosion of the pump room and the hydrogen peroxide on the side of the pump room. The gas in the sewage well is the gaseous state of hydrogen peroxide explosion, and then explodes when it encounters air. These accidental explosions are by no means the on-site consequences that can be designed and imagined in the drill plan. After the officers and men withdrew from their positions, their back road, the sluice gate, exploded, and the back road was cut off, making it a utopian idea to take water on the spot.

One of the reasons why the July 16 fire was difficult was that there was no water at the scene. Officers and men have found their own ways to get water, including activating a remote water supply system to supply water and driving to get seawater. Without water, how can firefighters fight? Not only will the fire not be extinguished, but the officers and men will be roasted to death in the flowing fires everywhere. They are not afraid of death, not afraid of hardship, not afraid of tiredness, not afraid of fire and smoke, scientific rescue, flexible tactics, and have created many small miracles, synthesizing unprecedented big miracles in the history of human firefighting.

Eight foam generators are installed on the top of each crude oil tank. According to the concept in books, crude oil tanks are safer than pressure cookers in residents' homes. However, after the power outage, the foam generator did nothing, and the fire was fierce, and the top priority was to cool the No. 103 tank to stop the flowing fire and prevent the explosion of the high-risk chemical tank group and LNG. From the field, it was almost impossible to accomplish these tasks, but in the end they all became possible. This made the officers and men on the fire ground who had gone through hardships feel a bit of luck. In fact, there was not the slightest fluke here, and there was not the slightest mercy in the oil fire, which was the inevitable result of the officers and men who gave all their life forces. It's just that the officers and men who are in the local area do not realize the role that their persistence in every minute and every second plays in the overall situation.

Being in such a fire scene, the death scene experienced by Zheng Chunsheng automatically came to mind. One year, a transport ship caught fire on Sanshan Island in Dalian. There are cars and people in the cabin, mixed loading. Zheng Chunsheng and his officers and men went to put out the fire, and when they dragged the boat to the shore, the boat was still smoking, but the fire point could not be found. Zheng Chunsheng walked to the deck to sprinkle mineral water, looked for the fire site with water vapor, and found that the cabin on the second floor was on fire. When I opened the door on the second floor, the smoke was billowing and I couldn't get in. Zheng Chunsheng wore an air breathing apparatus and went inside. The visibility here was less than a foot, so Zheng Chunsheng had to walk forward with his hand to find the source of the fire. At this time, the fire burst into flames, and when the hatch was opened, the air helped to ignite the dark flame. As soon as the cabin burst into flames, the air became thin and the fire burned out all the oxygen. Zheng Chunsheng walked back but couldn't find his way back, it was full of cars. More than 20 minutes have passed, and the air respirator can be used for half an hour at most. Zheng Chunsheng shouted over the walkie-talkie: "You knock on the deck." The officers and soldiers above struck the steel deck with an iron wrench, and used their voices to make a route back to the hatch, Zheng Chunsheng climbed to the hatch with the greatest strength, climbed up, and fell unconscious when he saw the wind. Another year, a liquefied gas explosion in Ganjizi District collapsed all the floor slabs on the third to sixth floors, and nine people were crushed inside. The nine men are dead, but removing their bodies is a very dangerous task. Zheng Chunsheng led the assault team into battle, smashed the floor slabs, and moved the body out. The local leaders advised them not to do this, because the ridged cement slabs would collapse and smash people at any time during transportation, and the officers and men would be in danger. Zheng Chunsheng and the soldiers saw the families of the victims at the scene crying and wiping away tears, and resolutely went in and carried out the bodies of the five victims with blurred flesh and blood. More memorable is in Beichuan, Sichuan. In the May 12, 2008 earthquake, a rescue team of 20 people from the Dalian Public Security Fire Detachment rescued 24 people. On TV, they could not be seen waving red flags and shouting slogans. They didn't bring red flags, and they didn't have time to shout slogans. Zheng Chunsheng and the officers and soldiers were always on the front line of saving people, and there were no camera lenses there. On the side of the road, Zheng Chunsheng found a little boy pressed against the concrete slab, and the rescue team who hurried by thought the child was dead. The little boy's face was covered with dirt and his eyes were closed. Zheng Chunsheng squatted down, opened the little boy's eyelids, and shone with a flashlight, the boy's pupils contracted when he met the light, and he was still moving, he was still alive. Zheng Chunsheng was very happy and transferred a crane to lift the concrete slab, but the concrete slab was too heavy to lift. Zheng Chunsheng and his comrades-in-arms used jacks to hold on to the concrete slab, dug a pit on the spot, and rescued the boy in 46 minutes. The boy was 16 years old and named Zhang Liang.

After the explosion of the pump room, no one could be found, thick smoke and waves of fire filled everywhere, and the ground was covered with black oil and snow-white foam. The walkie-talkie shouted: "Assemble to the combat vehicle, assemble to the combat vehicle......" The officers and men rallied to the side of the combat vehicle. The sluice valve exploded and the people retreated again. Zheng Chunsheng couldn't forget a detail, it was the screams of people being hit by collapsing cement blocks coming from the walkie-talkie. At that time, when the sewer manhole cover collapsed into the sky, the cement block that sealed the well also collapsed into the sky.

The officers and men assembled again, armed with water cannons and foam guns, charging into the waves of fire.

During the battle, Zheng Chunsheng found that the sea was on fire. In fact, the sea has long been on fire, and after the flowing fire flows into the sea, the sea surface is lit up with a real sea of fire. But people only pay attention to tank 103, but do not pay attention to the sea. After two hours of extinguishing the fire, Meng Bute, assistant to the squadron leader on duty in the Huayuankou squadron, discovered that behind the fire was an oil tank. The tall, swarthy oil tank was hiding behind the flames of the flowing fire dozens of meters high, which was too bizarre and terrifying.

The sea fire area is more than 10,000 square meters, and it is said that there is no danger of a fire at sea, and there are no people and no boats. However, when the fire burns, it will pass through the back bread of the high-risk chemical tanks, which will inevitably detonate these tanks. Zheng Chunsheng and his comrades-in-arms fought alongside the Maritime Safety Bureau, using foam guns on tugboats to extinguish sea fires. The sea that raged in the raging seas did not extinguish the sea fire, and it was extinguished little by little under the pursuit of firefighters.