Riverside police

Han Yu is professional when it comes to repairing machines.

This is the first time for Han Yu to carry out maintenance like this today.

The inspection found that the fault was not very serious. The weld between the steam pressure sampling pipe of the high-pressure regulating valve and the pipe seat broke, causing steam leakage. It was necessary to seize the time to seal it.

Sealing is very simple, just weld it on, but the temperature of the steam is related to the pressure.

Under normal pressure, the temperature of steam is up to 100 degrees Celsius, but what is leaking is high-pressure steam, which is as high as more than 200 degrees Celsius, and it is continuously high!

Han Yu couldn't believe that his superiors didn't equip the officers and soldiers with heat-insulating protective clothing. He didn't even have heat-insulating protective hoods that looked like robbers. He could only wear firefighting suits with poor heat-insulating effects. In the steam-filled environment Emergency repairs are being carried out in the engine room.

A person can only work for a few minutes. If the time is longer, he will be burned. Even if he is not burned, he will faint from "heatstroke".

The pipes in the cabin were crisscrossed, which directly caused the rescuers to have trouble freeing their hands and feet.

And, here’s the cabin!

There are both steam pipelines, oil pipelines, and even electrical circuits.

Welding is an open flame operation, and fire safety must be taken into consideration. If the pipe where the steam leaks occurs is not blocked and causes a fire in the engine room, then the trouble will be big and the ship may have to be abandoned!

Han Yu understood the situation, immediately stopped the rescue, pulled the captain and electromechanical chief aside, and formulated a blocking plan based on the on-site situation. On the premise of ensuring that no secondary accidents will occur, the rescue personnel are divided into groups and take turns to work.

The mechanical and electrical chief is in charge of the first group.

Han Yu led the second group.

After more than an hour of intensive repairs, the fracture was finally welded.

Han Yu didn't know how much he had sweated. As soon as he came out, he took off his firefighting uniform with the help of the officers and soldiers, took a few big gulps of water, and said breathlessly: "Captain, you can't drive now. I suggest Perform an inspection of all welds.”

“All welds?”

"If you're not afraid of ten thousand, you're afraid of the worst." Han Yu put down his tea cup and said solemnly: "Although I've been to the cabin a few times before, I only had a quick look at it. I saw that the cabin was very clean, with almost no oil stains. I thought the host was well maintained.”

The implication is that it is not well maintained.

The captain, who was already uneasy because of such an accident, became even more uneasy and subconsciously looked at the electromechanical chief.

Han Yu didn't know what the captain was thinking, and he didn't care what others thought. He looked back at the huge main engine and the criss-crossing pipelines, and said with a grimace: "At first, I thought the steam turbine technology of Dalian Shipyard was very advanced. It is mature and the manufacturing process should be very good. It was not until I participated in the emergency repair that I discovered that not only the process is not good, but also the raw materials and spare parts may not be up to standard!"

You can’t blame us for the poor quality...

The captain finally breathed a sigh of relief and said quickly: "Han Da, you go up and rest for a while, and I will organize personnel for maintenance."

"Our small law enforcement rescue boats have daily and monthly inspection records, and you should have them too. I want to take a look later, but I don't know if it's inconvenient."

"Fang...convenient."

"Okay, you guys are busy, I'll go up first."

This observer is different from the leaders and experts who came to inspect and guide before. He really understands!

The captain calmed down and hurriedly asked his subordinates to send the observer away first.

As soon as Han Yu climbed onto the bridge, a major officer came up to him: "Han Da, the commander-in-chief and political commissar please come over."

"where to?"

"Go to the command post."

"I won't go to the command post. Can I go to the small conference room? The conference room is right next to the command post."

The major couldn't believe that the observer in front of him who was good at repairing machines dared not give face to the two chiefs. He didn't know what to say for a while, so he could only go back and report to the two chiefs.

In the past hour, Han Yu was really exhausted.

As soon as I walked into the small conference room and sat down, the commander-in-chief and the political commissar pushed the door open and came in.

"Xiao Han, has the fault been eliminated?"

"Reporting to the head, it has been ruled out for the time being, but from what I discovered during the emergency repair, the equipment has many hidden dangers and needs a comprehensive and meticulous overhaul."

After sailing less than a thousand nautical miles, such a failure occurred.

There are two steam turbines. If there was only one, the entire warship would be out of control!

Chief of Staff Zheng was still frightened, so he sat down and asked, "What hidden dangers are there?"

Until this moment, Han Yu couldn't believe the problems discovered during the rescue, so he reported them in detail.

After understanding the situation, Chief of Staff Zheng relaxed slightly and turned to look at Team Leader Shen.

This happened, and you don’t know what will happen next!

Team Leader Shen was equally depressed and said helplessly: "When the Shenzhen Zhengship was built, our military expenditure was at a historically low level. At that time, the order quantity of military products was small, and many military R\u0026D and production units had not had military products for many years. Some production tasks are just to maintain basic production."

If you only look at the engine room, the quality of this warship is far worse than the freighters built by COSCO Kawasaki and Shenglong Shipbuilding in recent years.

But then again, the new ships they build are orders from foreign shipowners, and their use and even acceptance are in accordance with foreign standards. As for key equipment such as main engines and auxiliary engines, almost all are imported. The shipyard simply builds a hull.

The construction technology and quality of merchant ships are actually better than those of warships!

Han Yuzheng was unable to complain, and Team Leader Shen continued: "Because there are no orders, it directly leads to serious brain drain, technological gaps, and quality decline. It also leads to the endless quality problems in the construction of Shenzhen Zhengship. Salted fish, speak up. You may not believe it.

When the Shenzhen Zhengzhou ship was delivered, our acceptance team checked more than 5,000 problems! Because of this, we refused to accept it, set a deadline for rectification, and even initiated accountability. "

The hull is beautiful, but there are so many problems inside.

As the "user" of the warship, Chief of Staff Zheng was even more depressed and said with a sullen face: "Xiao Han, let me tell you another thing that you may not believe. Before the Shenzheng Ship was built, the main engine manufacturer had not produced such a warship for ten years. High-power host!”

Han Yu believed this.

Because the reform and opening up had been going on for many years, and the shipbuilding industry was the industry with the highest degree of openness, shipbuilding companies were fully integrated with international standards. In order to survive, they tried every means to improve their construction levels, compete with international peers, and get orders from the world.

In those years, there were not many large-tonnage ships built. They mainly built merchant ships. The hulls were welded, and the main engines and auxiliary engines were all imported. Even if you wanted to install a main engine with mature technology, the quality and economy were not as good as foreign ones. Those two famous main engine manufacturing companies, even if you give them away for free, the shipowner will not take them.

Although Linghai is developing the ship machinery parts industry and has introduced many related companies, none of them have much technical content, such as hatch covers and gangways.

Han Yuzheng thought that despite the good development of the domestic shipbuilding industry, in fact there is still a big gap between it and its international counterparts. Team leader Shen said with a wry smile: "This situation not only happens on the Shenzhen ship, but also when building ships for the garrison in Hong Kong." It also exists on the Type 037 speedboat.

We cannot blame the shipyard blindly, because this is also a very painful thing for the shipyard. As the general contractor and Party B of the construction, they have to negotiate with equipment and system production units, and there are thousands of equipment suppliers for a warship. It can be said that the decline in military product quality in recent years is comprehensive. Just a shipyard. "

To build such a national treasure, shouldn’t it take the whole country’s efforts?

After a lot of work, we actually came up with such a project.

Han Yu was silent for a moment and whispered: "Two chiefs, I will write down the problems I discovered in the observation report, and then you two must be mentally prepared."

"What kind of mental preparation?"

"Be prepared to repair the ship at any time, because a breakdown of one kind or another may occur at any time along the way!"

"Xianyu, you are professional in this area and have rich experience. Can you..."

"Chief, I know what you want to say, but there are some problems that cannot be solved by the electromechanical chief and the soldiers of the electromechanical team, nor can I, a marine engineer student, solve them."

Seeing the worried and hesitant expressions of the two chiefs, Han Yu thought about it and pretended to be relaxed: "Fortunately, there are two main engines, so it is unlikely that they will malfunction at the same time. As long as the maintenance is strengthened during the voyage, it will really be possible again." If a malfunction occurs, we will do our best to repair it, and there should be no problem in completing the mission."

"That's good. You are an expert anyway, so you should pay more attention."

"Chief, don't worry. From now on, I will not leave the Shenzhen Ship." Han Yu suddenly remembered something and said quickly: "Chief, I almost forgot, why are there no heat-insulating protective clothing and heat-insulating protective hoods on the ship? Can you contact the headquarters and ask the headquarters to send people to send more sets to Malaysia by plane?"

"Send me a few more sets. I know the insulating protective clothing you mentioned, but we don't have one."

"Not even one set!"

Han Yu couldn't believe this was true and looked shocked.

Chief of Staff Zheng said helplessly: "If there is a steam leak like just now, the high temperature will continue in the cabin. If there is a war, to put it unluckily, once it is hit by the enemy's artillery shells or missiles, there will be an instantaneous high temperature. If you are not careful, In the event of a fire, it is also necessary to direct and organize the firefighting in a high-temperature environment.

We know better than anyone the importance of thermal protective clothing, thermal protective headgear and even thermal protective gloves. However, the heat-insulating protective equipment that can achieve the effect of heat-insulating protection are all made of new materials. As far as I know, this technology is not available in China for the time being, and foreign countries have imposed a technical blockade on us. Not to mention that we can't purchase it, even if we can purchase it, it won't be cheap. "

Thermal protective equipment is so important, how can we not live without it?

Han Yu was silent for a moment, then raised his head and said, "Chief, I have three sets. Although they are less, having them is better than nothing."

"You have?"

"To be exact, it's not me, it's our branch."

"How did you purchase it?" Chief of Staff Zheng looked incredulous.

"In the past, in our Binjiang waters, we only had one professional law enforcement rescue boat from Laoyanjiang Police Department, which was responsible for the task of fighting water fires in the entire Binjiang section of the Yangtze River. At that time, we happened to have some funds, so we asked Bureau Feng to help convert them into U.S. dollars, and entrusted a company to Purchased from abroad.”

Han Yu paused and added: "However, what we purchased is heat-insulating and flame-retardant protective clothing. It is mainly used for firefighting. It is relatively bulky to wear on the body. It is not the kind of professional military heat-insulating protective clothing."

Chief of Staff Zheng asked curiously: "When did you purchase those three pieces of heat-insulating protective clothing?"

"It was from 1987 or 1988, I forget the specific year, but we kept it very well and it is still in use."

"It's no wonder. It was the honeymoon period at that time, and the blockade on us was not as strict as it is now." Chief of Staff Zheng took a deep breath and asked: "Xiao Han, as you said, we need it very much now. Insulating protective equipment, the three protective suits from your unit, can you lend us first?"

"No problem, as long as we can contact our unit."

"If you can contact me, I will arrange for someone to pick it up from your unit."