Heart fire

Preparations have been made for evacuation within five kilometers downwind of the factory area.Nearly two hours of peripheral firefighting failed to prevent the spread of the fire, and thick smoke quickly poured into the buffer room and packaging room, approaching dozens of ammonia gas pipelines and nine cubic meters with a capacity of [-] cubic meters in the refrigeration room. Type liquid ammonia tank and horizontal low-pressure liquid ammonia tank, and three horizontal high-pressure liquid ammonia tanks with a capacity of [-] cubic meters.

Liquid ammonia itself is not easy to burn, but the vaporized ammonia vapor will form a mixed gas with air. At this time, it will cause combustion when it is connected to a fire. When the concentration of ammonia gas reaches 15%-27% of the explosion limit, the liquid ammonia storage tank And when the temperature in the pipeline rises and the pressure increases, it will also cause a physical explosion, and the ammonia leaked from the explosion will burn and explode again. This situation is extremely dangerous and difficult to control. If you want to avoid it, you must turn off the ammonia compressor as soon as possible. The valve of the machine, and the damaged part of the container and the pipeline are blocked.

The danger of this task is much higher than that of internal fire fighting, and it must be completed by firefighters with good physical condition, excellent professional skills and rich experience in the field of fire.

And everyone present knew very well in their hearts that once they entered, it was impossible to come out alive only by experience, and one in ten thousand, or even one in a million, or one in ten million, luck.

It should be said that accepting this task is tantamount to being ready to sacrifice.

The internal attack and smoke exhaust are being carried out in an orderly manner, and the excavator also opened the first hole on the west wall of the buffer room under the command of the detachment.After accepting the last safety inspection before entering the fire scene, Zhou Tong squatted down, tightened the trouser legs of the protective clothing for Xi Yang, and carefully checked the cuffs and belt to prevent the leaked liquid ammonia from frostbiting his skin. Or poison him.

Taking advantage of the fact that Tu Ke and Du Wei were also being checked, he secretly and quickly shook Xi Yang's hand, frowned remorsefully and whispered to him, "Can I take back what I said before? Can you not?" Go? Can I go for you, or let me go with you..."

Xi Yang put the external leak sealing tape and the magnetic pressure leak sealing tool into the toolbox, turned around and held Zhou Tong's hand generously, and smiled softly at him: "Don't worry, no! Something will happen."

Following him, he took another sneak peek at Yao Hongwei who was talking to other people in the distance, and gently shook Zhou Tong's arm: "The wings have grown hard, your Uncle Yao is so angry with you this time, remember to talk to him when you come back." He admits his mistake, or I won't help you when he settles his score after autumn."

"Also, don't forget the previous agreement, if you lose to me in this live training match, the birthday present will be gone."

I want to kiss him, I want to kiss him right now, right here, right here, to kiss this gentle, cute, mischievous person who is so tender, cute, and mischievous that you can't put it down under full armor, who should have been carefully kept and placed in a safe place. A ray of breath melts into one's own blood, regardless of life and death.

Of the countless moments that moved my heart for him, only this moment is the most real and deepest.My brother used to be like this too, even if he refuses to face it and admit it, there is no way, there is no reason not to love such a weak and beautiful him who is dressed in a strong coat.

All the blame and coquettishness seem to be comfort and farewell.Zhou Tong's heart suddenly tightened, and he realized very clearly that after parting with him the next moment, meeting again, holding hands again, hugging again, kissing again, and saying "I love you" again may become things that will never be realized again. Despair surged in an instant, and it was so overwhelming that it almost completely destroyed his tense nerves.

What he is afraid of is not that there will be no tomorrow, but that he will have to face many tomorrows without Xi Yang in the rest of his life.

How could Xi Yang not understand, but at this time, even if it was just "wait for me", it was too cruel a promise to each other.

"Tongtong, do what we have to do, regardless of personal gains and losses, and don't be afraid of difficulties and pressures."

"Prove the meaning of our existence, save them and come back, right now." Before putting on the negative pressure mask, Xi Yang took a deep look at Zhou Tong for the last time, and said to him calmly and forcefully.

What else can be said?Nothing can, nothing is enough.Like that night when they stripped off everything on their bodies and met naked together, at this moment, they put on their masks, helmets and gloves in sync once again, picked up their weapons, and carried their respective air bottles on their backs. Watched by Pan's eyes, they walked out of the command office side by side, and came to the entrance of the fire scene, which was smoky, black and scorching like purgatory, with no end in sight.

As soon as the first hole was opened, the fire point was seen. The burning area was close to [-] square meters by visual inspection, and there were two liquid ammonia overhead pipes running from north to south with a diameter of about [-] mm at the top.

The two internal offensive echelons were ready, Xi Yang made a tactical gesture of "action" to Zhou Tong, and then carried tools with Zheng Jiang, a cold storage technician and a correspondent, without looking back. Followed the striker melee team into the buffer room.

The second hole was opened in front of the position where the three squadron soldiers were stationed before they disappeared. After the hole was opened, there was no open fire inside, but the initial "frozen smoke" had gathered in large quantities in the lower part of the entire space, seriously hindering the sight of the operators.

Tu Ke unscrewed a bright flashlight, first told Du Weiduo to bring two bundles of luminous guide ropes and a 15-meter lifeline, and then grabbed Zhou Tong, who was restless and about to drill in, and looked at him seriously. He said: "If you still want to see him, live well, don't think about anything else. How do you go after entering? How do you search? Du Wei and I will follow your instructions."

A few words made Zhou Tong sober up a lot.Yes, if you want to see him, you have to live, and I believe he is the same, he will work hard for himself to survive, even if we have different paths, we will still walk together in love.

Catch up with him, stand side by side with him, do what you should do, complete the task, and go back alive.Only in this way can he become a person capable of protecting him in the future, and he will no longer have to watch him go into danger alone.

Thinking about the details of the acquaintance so far, his frowns and smiles, Zhou Tong took a deep breath, steadied his steps and answered Tu Ke with a calm heart: "First search south, 70.00% of fire victims will instinctively hide in the Behind the burning building."

"There are not many doors and windows in the cold storage. When you pass each one, you must mark it and remember to close it, so as to reduce the speed at which the fire spreads."

"I went to the front to investigate, Tu team was in charge of communication, scanned the scene with a thermal imager, and Wei Ge went last, laying guide ropes and making evacuation marks."

"The smaller the amount of known information, the larger the scale of the search and rescue operation. Pay attention to the password, collect the signals of the lost teammates and peripheral security personnel at any time, try to advance close to the wall, fix the lifeline, and if you encounter a space with a single entry point , the person who walks at the end is responsible for staying behind and observing."

"We have three 10 minutes from now, let's do it."

...

In order to maintain the cooling effect of the cold storage, it is necessary to install a thermal insulation layer that blocks the external heat source. In order to protect the thermal insulation layer from damage by water vapor, a vapor barrier layer is usually installed on the high temperature side of the thermal insulation layer. Therefore, the architectural structure of the cold storage It is like a "stuffy tank", especially after the insulation material has been burning for more than two hours, the temperature of the cold storage, which was originally minus 23 degrees Celsius, is gradually rising, and the whole space is filled with a lot of black smoke and a pungent ammonia smell. A smoke exhaust machine has been installed at the entrance of the warehouse, and everyone is turning on a bright flashlight, and it is still very difficult to move forward.

After the plate is heated and melted, it basically ignites wherever it drips. In the early stage, the internal attackers have put out several open flames with multi-functional water guns, but smoldering and re-ignition are still happening continuously. The sound of deformation and fracture of supporting components such as beams and beams, every time it sounds, the security officer will issue a warning on the walkie-talkie. At this time, everyone must stop immediately and be ready to turn around at any time and evacuate for escape.

There are many shelves in the cold storage room. In order to prevent being injured by collapsed shelves and falling goods, Zhou Tong chose to walk in a straight line as much as possible. After fumbling around a corner, the hose arrived at the hallway connected to the warehouse and the sorting and distribution room next door.

As far as the flashlight can see, a closed warehouse door can be seen. Zhou Tong took off his gloves and touched the handle of the door lightly. He found that the temperature had reached an unacceptable level for the human body. From this, it can be judged that a large area of ​​the sorting room has caught fire, and the fire has entered the stage of development. If someone is trapped in it, after such a long time, there is no possibility of survival.

But at this moment, Tu Ke, who was lying on the ground, heard a faint low-pressure alarm from the air rebreather.

"There's someone in there!"

Calculate the time, if the three missing firefighters are still together, if they only brought a bottle of air breathing, if the bottle of empty breathing is used for one hour, if they are still alive, then they must have arrived by this time The limit of support.

Zhou Tong didn't dare to delay for a second, and immediately pulled out the fire ax hanging on his waist, hit the Kumen several times hard, and shouted loudly to the Kumen together with Du Wei in the interval: "Is there anyone! Li Yan! Zhang Qinbin! Lu Xiaofei! Are you in there? Can you hear me?"

After continuous beating and shouting, the three finally heard someone hit Kumen with something like a helmet in response. The sound was very small, as if they had exhausted their last strength.

someone!There are still people alive!Tu Ke immediately used the walkie-talkie to send a notification and request for reinforcements to the peripheral security officers and the nearby internal attack team as agreed, and activated the thermal imager.Du Wei fixed the anchor points under the warehouse door and on the door handle with a lifeline, while Zhou Tong continued to call out to the door, asking about the situation of the other party, encouraging him to persevere, prompting and guiding him to use the walkie-talkie, or trying to activate it manually The rescue device on the body.

"Are all three of you there? If you can, everyone please make a little noise to give us directions! Hold on, the intervention team will take you out!"

Nearly another minute later, the internal attack team could be heard calling for positioning and dragging the hose, but there was no other response from the door except for the intermittent collision sound, and several times even the collision sound disappeared. , and it sounded again when the hearts of the three of them were about to jump out of their throats, and their breathing almost stopped.

Zhou Tong guessed that the walkie-talkie of the trapped firefighters might have been damaged or malfunctioned, and judged that all three of them were inside, but most likely they were not in the same position, because the other two didn't seem to receive instructions to make noise.

According to the structure and layout of the sorting room, he quickly assessed the possibility of entry and the risk of space collapse, and quickly made a demolition of the wall, changing the single-entry space into a multi-entry space, saving time and quick search More areas, the decision to rescue trapped persons from a vantage point.

Zhou Tong was already preparing to pry open the door when the internal attackers approached, and the four firefighters quickly divided into two echelons. The first echelon fired guns to exhaust smoke after the door was opened, detoxified and extinguished the fire, and the second echelon fired spray water guns behind. Perform cooling cover on the first echelon and cool the load-bearing components at the same time.

The moment the warehouse door was opened, a thicker and darker smoke gushed out from the inside. The sorting room was pitch black and the heat wave was overwhelming. Under the cover of the water gun, Zhou Tong was the first to jump into the door. Fumbled on the ground with the light of the flashlight, and soon found a dying firefighter holding a helmet behind the door, and dragged him out of the sorting room smoothly.

The firefighter was found unconscious, with weak heartbeat and breathing.He did not wear any communication equipment or respirator, only a mask that matched the helmet, and the other two firefighters who lost contact did not stay in the same position as Zhou Tong expected. It is not difficult to see from the broken and completely distorted left leg that he crawled all the way from a certain place to the door by virtue of his amazing perseverance and desire to survive.

The internal attack continued. Zhou Tong didn't know whether his vision was blurred because the mask was too dirty or for other reasons. He performed cardiopulmonary resuscitation, praying that he could persevere, and at the same time directed Du Wei to find the correct position to operate the rescue.

In order to prevent the heat generated during the motorized demolition from igniting the core layer of the plywood, according to Zhou Tong's instructions, Duwei manually removed the bolts, connecting pins, eccentric hooks and other fixing parts of the warehouse board one by one, and then pulled out the inner core. layer, and quickly opened an entrance on the wall, and then went into the search with Tu Ke carrying a thermal imager. Sure enough, within a minute, they found another two under a workbench in the deepest part of the sorting room. One of the firefighters hugging each other, one of them fell into a coma but pressed his breathing mask tightly on his teammate's face, and refused to let go when he was dragged away.

After removing the useless equipment on the three people, Zhou Tong, Tu Ke, and Du Wei, together with the second intervention team that arrived later, lifted the injured firefighters up and prepared to follow the markings and laid hoses Evacuate outward.Suddenly, the safety officer's continuous collapse warning came from the intercom, and the steel beam above the head also made a clear cracking sound at this time!

At that moment, the members of the internal attack team who were about to continue to attack the sorting room hastily closed the water valve, turned around and shouted at everyone: "Withdraw! Withdraw! Withdraw!"

In the next second, the shattered color steel plates fell apart and broke one by one, falling and smashing at everyone's feet like a hail of bullets.Everyone quickened their pace and tightened the lifeline, carrying, dragging, dragging, helping each other to run quickly, and finally escaped from the cold storage before another collapse and entered the hallway on the west side.

While still in shock, Tu Ke adjusted his posture to stabilize the injured firefighter's back, and picked up an internal attacker who accidentally fell, and while pulling him to continue to evacuate, he asked him loudly: "Are you all right? Go away! "

As long as you enter the fire scene, the mask will be so smoky that you can't distinguish the face inside in less than 10 minutes, and you can't recognize who the other party is without communicating.Hearing Tu Ke's voice, the internal attacker almost fell down again. After finally steadying his footsteps, he tried hoarsely while running, "...Master?"

This time Tu Ke also heard it, but before he had time to ask Wen Yue why he didn't supply water outside with his squadron, he just didn't pay attention, and bumped into Zhou Tong who was running ahead but suddenly stopped for some reason , almost dragged Wen Yue and fell again.

It was only when Zhou Tong was hit that he came back to his senses, and quickly reached out to help Tu Ke.Immediately afterwards, he put a little bear doll that was so dirty that he couldn't see it into his breast pocket, and took the thermal imager and a bright flashlight from Tu Ke on his own initiative, leaving a sentence "Hurry up and go!" , I'll go find him" and then turned around and ran towards the refrigeration room only 30 meters away from the cold storage at the other end of the hall.