Jing Hailin glanced at Zhan Chang Sheng, and said unhurriedly to everyone, "Nuclear submarines are usually double-hulled, and the shell is a non-pressure-resistant shell, which will not be deformed; The inner layer is a very strong pressure-resistant shell, which will deform under the strong pressure of seawater. When the pressure shell of the submarine is deformed, the structural parts connecting the inner and outer shells will be subjected to great tensile force. If the weld is not firm at all, it will be pulled apart; If the weld is done well, although the weld is not opened, the structural part will also pull the entire shell to deform, and it will also make a frightening clicking sound in the deep sea. ”

Jing Hailin's voice was warm and pleasant, soothing everyone's nervous hearts.

"It's a pressure that no one can imagine." Jing Hailin continued unhurriedly, "Intuitively, the fixed bracket of the submarine's lifting device used for Guantong has been bent little by little; And when the submarine rises from the bottom of the sea and floats to the surface, the fixed bracket made of steel is straightened little by little, which shows how much pressure the submarine has the further down it goes!" He gestured with his hand and said, "Let's say so!" A pressure-resistant shell that is less than the size of a playing card is subjected to more than a ton of pressure. ”

Therefore, this "click" sound sounds particularly "crazy" in the deep sea!

"Hiss......" everyone gasped.

"Report!"

"Yes!"

"There was water seepage in the stuffing boxes of several cabins, and a "tick-click" leaking sound could be heard. ”

When Zhan Changsheng heard this, he immediately turned his head to Jing Hailin.

Jing Hailin's face was as calm as water at this time, without the slightest panic and nervousness.

"What should I do?" Zhan Changsheng asked in a low voice, "It's leaking." "Will it expand, will it ......?

"I don't think it's better to continue diving!"

"It's just, it's too dangerous, it's all leaking?"

Jing Hailin ignored the suggestions of the leaders, directly picked up the intercom, and carefully inquired about the leaking cabin, the leakage situation and the results of the treatment.

Jing Hailin had a plan in his heart, looked at several leaders on the other boats and discussed them reasonably, "The nuclear submarine is in good condition, there is no problem, I ask to continue diving." "Chiefs, we have done a good job of preparation, there are people in key positions in each compartment who are keeping an eye on key equipment, and strain gauges are installed in each key part to record the changes in the pressure of the submarine structure. If something is wrong, we will take immediate action. ”

Several people understood Jing Hailin's popular explanation, thought for a while, and after discussion, agreed to continue diving.

Hearing this, Zhan Changsheng ordered, "It is about to reach the predetermined depth, all the crew should pay attention, all posts are operated carefully, don't be nervous, it is normal to make a little noise." ”

Jing Hailin looked at them with deep eyes and said cautiously, "For the sake of safety, the boat will stop every three meters when it dives further, and the personnel on duty in each cabin must report the current equipment situation to the command platform in turn. ”

"Uh-huh!" The leaders kept nodding in agreement, "This is the safest." ”

So after a while, someone will report to the command cabin, and the cabin will check the mechanical equipment, the watertightness, A!

"What does A mean?" The leaders on board the boat did not understand.

"Chief, A means that the equipment is running normally and can continue to dive." Jing Hailin looked at them and explained.

Jing Hailin was worried that if something went wrong with the submarine, the bad mood would spread rapidly, so he asked the reporter in advance to correspond to the three letters "A, B, C" in a certain range when the submarine approached the predetermined depth, and "A" meant that everything was normal and the dive could be continued; "B" indicates that the stress is close to the critical value, and the dive should be done carefully; A "C" indicates that the critical value is exceeded and the dive must be stopped.

"Oh!" The three nodded in understanding.

"Is there any difference between the diving of this nuclear submarine and the deep diving of a conventional submarine?"

Because nuclear submarines are highly secretive, it is normal not to know about it.

Jing Hailin explained to the chief, "When a conventional submarine dives to the bottom of the sea, it can turn off the power equipment and rely on the battery to power it, and it does not have a sea part that must be exchanged with the sea water at all times." On the contrary, nuclear submarines are powered by nuclear reactors, and once the reactor is started, it cannot be stopped except for wartime damage or failure. The life of the world's most advanced nuclear reactor is already equivalent to the life of a nuclear submarine, and with the addition of fuel rods once, it can work until the nuclear submarine is decommissioned. The strategic deterrence of nuclear submarines also comes from this. Therefore, the nuclear reactor of a nuclear submarine is constantly running and needs seawater to cool down. Even if a nuclear submarine sits motionless on the seabed, its sea-opening part must still be open to the sea for seawater exchange. If there is no seawater to continuously cool the nuclear reactor, there will be a terrible accident of explosion due to the lack of water to cool down.

This is the most difficult key point for nuclear submarine diving. The bellows of the sea-opening part is the most vulnerable part of the nuclear submarine and requires high strength. ”

Zhan Changsheng knew that Jing Hailin and all their scientific researchers had carefully designed the bellows to have enough strength, but if they really dived to the bottom of the sea at the extreme depth, could it withstand the test of dozens of atmospheres? No one has ever tried it.

Everyone's hearts were lifted, staring intently at the console in front of them, the dashboard.

Whether the dive can meet expectations is not only related to the submarine itself, but also related to the surrounding sea environment.

There is a difference between the temperature in the depths of the sea and the temperature on the surface of the sea, and the surface temperature is higher than the temperature of deep water.

Moreover, the salinity of the depths of the sea is different from that of the surface of the sea. The difference in temperature and salinity makes the pressure on the sea equipment, and the shrinkage rate of the thermal expansion and contraction of the metal is also different. The fact that the sea-opening valve of the nuclear submarine cannot be closed at all times means that the most sturdy pressure-resistant shell and the most fragile sea-opening equipment of the nuclear submarine have to withstand unprecedented severe tests at the same time.

The eyes of everyone in the command module were fixed on the pointer display of the depth gauge for a moment.

Unconsciously held his breath, and every time he dived a meter, Zhan Changsheng seemed to be able to hear the sound of everyone swallowing saliva.

So when the nuclear submarine steadily dived to the predetermined depth, it was slightly exceeded. The reports of the crew on duty in each cabin sounded in turn, which was exciting.

At this time, the hull no longer made a "click" sound, and several water seepages did not intensify. The pressure-resistant shell and sea-opening system of the nuclear submarine are safe and reliable, and the mechanical equipment of the whole submarine is operating normally, reaching the design goals.

All kinds of data were summarized here by Jing Hailin, which made him breathe a long sigh.

With a "Float!" Command.

The nuclear submarine calmly and slowly rises to the surface of the sun-drenched sea.

When the boatswain reported that the nuclear submarine had safely returned to a safe depth, the passion and excitement of everyone on board could no longer be suppressed, and almost at the same time burst into cheers that were enough to set off huge waves!