Chapter 724 The tragedy of lithium battery submarine (plus 4)
Colorado.
In the history of the U.S. Navy, many warships were named after this. For example, the third one named after it was a battleship with a displacement of more than 30,000 tons completed before World War II. It was so famous that it arrived In later generations, there was a nuclear submarine with this name, which lost a large piece of its silencer tiles during an underwater collision and was disgraced.
Now, this name has been given to a command and control ship.
Only the Americans have such specialized warships. They have a large number of command tasks and require specialized warships to complete them. The navies of other countries can just use aircraft carriers or warships with the largest displacement. There is no need to engage in such specialized warships. Command ship.
Perhaps it was not necessary before, but with the advent of the information age, this kind of command ship has become even more significant. It can be upgraded first to achieve information capabilities.
More than 200 computers are equipped on this warship, allowing it to achieve a complete paperless office. If you need any information, just send an email directly.
On the bridge, a blond female soldier was skillfully operating the keyboard. She was about forty or fifty years old, but she was still in high spirits. This exercise was not only for the U.S. Navy, but also for her, because she has been serving since Since then, he has been committed to the Navy's computer and command automation work. With his efforts, the Navy has entered a new computer era. Some people even call her the mother of computers in the U.S. Navy.
As for how large her collinearity is, just look at the name of the Arleigh Burke-class destroyer that was commissioned in September 1996: Hopper, named after her Grace Murray Hooper Named after.
Of course, this is also because the USS Hopper is the first warship built in accordance with IT21 standards. It fully realizes automated command and control, and uses the network to integrate command, control, communications, intelligence, computers, surveillance, and reconnaissance systems. Integrated into one, which is the famous C4IRS, it can also share maritime joint command information data.
Now, Hobo is operating the computer and working. Unlike others, there are two screens in front of her, which display information about the encrypted network and the ordinary network respectively.
There were constant reminders of new emails in her mailbox, and she kept reading them.
"This way of reading emails is too slow and not real-time. It would be better if I used ICQ." At this moment, an intelligence officer next to him said: "This software can not only chat, but also send messages." Documents, videos, and emails should have been eliminated long ago.”
"Shut up, Bill, you stupid guy." After hearing what the intelligence officer said, Hopper said angrily: "ICQ was not developed by us. It came from the Goose Factory and has a background from the Mingzhou Group. How can we use it?" If that kind of software is used, wouldn’t it mean that all our secrets are handed over to the East?”
She is familiar with the Internet and has analyzed this kind of ICQ software. She came to the conclusion that it must not be trusted, otherwise she would not know it was sold. How could one's own top-secret information be circulated through this kind of software?
“Aren’t we divided into two types of networks? Our unencrypted network, isn’t it possible to use this tool?”
"No, the software was not developed by us. We have no way of knowing whether it has other programs, such as monitoring the operation of our entire computer. We absolutely cannot base our security on software of unknown origin! If we develop one ourselves Similar software…”
Of course, there are some major Internet companies that want to get involved in similar software. However, this field is popular among the first ones, and there is no chance for those who come later. After all, those trend-setters who have experienced the Internet in advance have already used ICQ, so how can they use it? Other tools? Moreover, after having competitors, ICQ also began to continuously upgrade, providing more functions, leaving competitors unable to catch up, and being beaten down one by one.
This thing is now used all over the world and has completely risen. There is no possibility for others to rise. However, this is a proper monopoly. If we find a way to conduct an anti-monopoly investigation on the goose factory, this How about ICQ being destroyed?
At this moment, a new email appeared in front of her. When she clicked to open it, there was nothing in it. It was an empty file.
“Which idiot can’t send an email?” Hopper glanced at the email address: “Louis? Damn it!”
Hope stood up and walked to the captain's room.
"Mr. Captain, don't you know how to send an email now?" Hopper looked at Lewis in front of him: "You are the captain and the person in charge of the most modern warship in the United States. If you can't even send an email... "
"Me? No, I've been playing Minesweeper." Louis replied curiously.
No?
Hope's brows furrowed: "Get out of the way and let me check."
The captain didn’t send the email, what’s going on? Is there a hacker?
Haoper has been working on the Internet for half her life and is very vigilant about this aspect. However, when she carefully checked the background processes of her computer, she did not find any unfamiliar processes.
Could it be that the captain encountered certain ships unconsciously?
"It's time for you to retire and find someone younger." Hopper walked out.
There was nothing wrong with her check, and there was nothing wrong with Louis’ computer. The email sent to her was not sent by Louis, and the first letter of the English letter was not the lowercase English letter l, but the number 1.
In this era, a common method used by hackers is to mix these two letters. For example, explorer, the most common browser, changes l into 1 to disguise it, and is actually a background hacker process.
After Hopper clicked on the email, her computer was already infected, but because she was using a more advanced computer that ran faster, she didn't realize it.
The exercise continues.
“No. 083 of the 65th Patrol Aircraft Squadron found the target!” When he saw this email, Hopper clapped his hands for them.
This exercise is mainly anti-submarine, so there are a large number of P-3 anti-submarine aircraft among the teams participating in the exercise. However, among these aircraft, the 65th Squadron is the most special. They are all composed of reserve personnel!
Take this No. 083 as an example. The pilot is a pilot of a civil aviation company, the airborne equipment operator on the plane is a postman in Los Angeles, and the sonar system is supported by Phoenix, Arizona. These people are reserve forces and usually go to work. They only work every day. Yue used a weekend to participate in training, and now, they were the first to discover the underwater target. It was amazing.
“The target launched a torpedo!” At this moment, another message arrived.
Wonderful, so wonderful!
The underwater simulated attack mission is the third Harushio-class submarine "Haoshio". It was started on December 9, 1988, launched on January 17, 1991, and entered service on March 25, 1992. It is only five or six years ago, so it can be said to be a very new submarine.
Since the end of World War II, island countries have been very keen on building diesel-electric submarines. This Harushio-class submarine is already the sixth model, which shows their update speed.
Of course, this kind of submarine is actually a natural enlargement of the previous generation "Yushio" class submarine. It also uses a conventional double-hulled teardrop shape similar to the "Mackerel" class, with a shell rudder and a single-axis 7 The propeller has large side-sloping blades and low noise. The horizontal rudder and vertical rudder at the stern of the boat intersect in a "X" shape. If it were to surface, it might be full of modernity.
At this time, the submarine captain Komaki Second Son was in excitement.
“The simulated launch has been successful!”
"If it were in actual combat, we would have killed the Burke-class destroyer. Unfortunately, we are not on the battlefield now."
After hearing their words, Komaki Jiko's face became slightly serious. Yes, it would be great if it was a war. He thought of his grandfather, the pilot who flew a suicide plane towards the US aircraft carrier formation. Just when this scene appeared in front of him, an anxious voice sounded: "Torpedoes, they launched torpedoes!"
“Three, they launched three torpedoes!”
“MK48, they actually used heavy torpedoes to deal with us!”
“I heard the sound of air-dropped torpedoes, it was MK-46, two!”
The scene that appeared in the last exercise with Pyramid State will never be repeated. How can the U.S. Navy be repeatedly bullied by diesel-electric submarines? Even if the Hayashio has launched a torpedo, it is meaningless because there are already five torpedoes aimed at it. To kill them, this is definitely killing a chicken with a knife. Just one torpedo can kill them, and now, there are five of them!
“Turn off the propulsion motors, and all machinery and equipment, except the sonar, will be suspended! Let’s show them how silent the submarine is!”
As the latest submarine, its silent performance is quite high. Its surface is also paved with special silencer tiles. Now that the low-noise seven-blade large side-inclined propeller is turned off, they can be sure that they will not be discovered.
How can a submarine that makes no sound be discovered? As long as they are not discovered, the anti-submarine troops cannot launch an attack, and they can use the ocean currents to slowly leave here, and then launch an attack quietly!
Omaki Second Son’s idea is very naive.
Everyone on the submarine stopped moving, did not dare to move or speak, and remained absolutely silent. Only the sonar equipment continued to work.
“The first torpedo passed five hundred meters away from us.”
“The second torpedo is 800 meters away from us.”
Of course, it’s okay to hit them. After all, these are training torpedoes and have no warheads.
“The third torpedo... Baga, is still sailing towards us!”
Not all the torpedoes lost their accuracy, but one torpedo, for some reason, actually continued to chase them!
There are not many types of torpedoes in the United States, mainly the light MK46 and the heavy MK48. However, this is only the basic model, and there are many suffixes behind it.
Torpedoes look simple, but in fact they are not easy to develop. Take the MK48, for example. It was developed in 1962 and was only successfully developed in 1971, with an investment of US$5 billion.
Moreover, there are many stories in it. The company that originally developed this torpedo was Westinghouse Electric Company, but encountered many problems during the development process. Later, Gould Company joined in and developed the MK48 with acoustic homing and piston engine propulsion. -1, Westinghouse decided to start over again, terminate MK48-0, and directly develop MK48-2.
Hence, the MK48 torpedo can’t just look at the front model, but also the suffix. Its suffix ranges from 0 to 7, with an ADCAP model added in the middle. There are nine types in total, and the price is also increasing. The early model 1 was only US$500,000, and by the time of the ADCAP model, the price had risen to US$3.5 million.
The United States does not attach much importance to anti-ship missiles. In its decades of history, it has only had Harpoon anti-ship missiles, or a Tomahawk modified with a semi-armor-piercing warhead instead. However, Americans attach great importance to torpedoes. MK48 has been continuously modified, not only anti-submarine, but also anti-ship.
This is of course due to the characteristics of the torpedo: it attacks below the waterline, and after the explosion, it will entrain seawater and impact the target, causing greater damage.
With the same warhead, it is difficult for an anti-ship missile to kill a 10,000-ton cruiser. It has to launch many missiles to attack. However, if it attacks from underwater, one MK48 is enough.
At this time, the one attacking Hayashio was the latest MK48-ADCAP torpedo. This torpedo has quite advanced performance and uses a new digital sound guidance system designed by Houston Rocket Company. Gould Company continues to be responsible for this. It took ten years to improve the torpedo body and propulsion system to develop this torpedo.
This exercise still needs to test the anti-submarine capabilities, so of course they have to work hard in this area. When launching the MK-48 torpedo, they also fired one of the most advanced torpedoes.
I don’t know whether this torpedo identified the target in the weak underwater noise, or whether it continued to rush towards the target according to the previously set procedure. In short, this torpedo is now continuing to move towards the Hayashio!
what to do?
ˆ ˜ Komaki Jiko’s eyes were filled with a hint of madness: “Attention, prepare to sail at full speed!”
Full speed?
Sailing at full speed underwater, isn’t it waiting to expose one’s target? Moreover, there is no point in sailing at full speed. After all, their submarine can only reach a maximum speed of 20 knots underwater, but the MK48 torpedo can reach a high speed of 55 knots underwater. In comparison with this speed, they How could he be spared?
Of course, Tsujiko Komaki didn’t intend to race with torpedoes. He just wanted to use the tactics used by tanks on land to deal with flying artillery shells: suddenly start, and then dodge half of the body, so that it would be safe.
Now, they too must sail at full speed!
“Now the countdown begins.” Seeing the torpedo coming, the sonar officer started the countdown: “One hundred, ninety-nine, ninety-eight…”
When the countdown reached fifty, the second son of Komaki finally spoke: "Now, sail at full speed!"
Full speed!
At the rear of the Hayashio submarine, the propulsion motor produced by Fuji Company started to rotate from zero to full speed in two days. With a powerful power of 5,300 kilowatts, the large submarine with an underwater displacement of more than 3,000 tons finally began to surge.
At this moment, noise also began to appear. Not to mention those sophisticated towed array sonar, even the ordinary bow sonar could clearly capture it.
“What are they going to do?”
“Are they crazy?”
Under water, silence is directly related to the life and death of a submarine. Very few captains will let the submarine run at full power. They usually cruise slowly at a speed of three to five knots. Now, this is just an exercise. It is useful. So desperate?
The huge submarine began to accelerate, and then accelerated again, but the MK48 torpedo was even more excited. It had already caught the target's signal, turned around, and continued to pounce towards the target.
The era of early direct-navigation torpedoes has long ended. Today's torpedoes can all lock on to the target, and now this torpedo is even more intelligent.
“It’s still coming!” the sonar operator exclaimed.
“Don’t be anxious, pay attention now, prepare to turn left rudder!”
Of course Komaki Jiko will not be so naive as to think that he can get rid of this torpedo just by accelerating. Acceleration is just for turning. He wants to perform a perfect dodge underwater. He wants everyone to know that he is the best submarine in the world. Captain!
Today's torpedoes are all smart, which also has disadvantages. For example, as long as the torpedo is avoided and the opponent cannot find the target, he will attack others. He not only has to get rid of the torpedo, but also makes the torpedo Torpedo zone attacks other surface ships! This thing is just like an air-to-air missile with an active radar seeker. It can't identify the target at all. It beats both the enemy and ourselves!
The Zaoshio is still accelerating, and the surging power is continuously transmitted from the battery compartment and continuously enters the tail to drive the propulsion motor at the tail.
When moving forward at full speed, the power is consumed at an alarming rate. If it is an ordinary battery, it will be completely exhausted within an hour. However, Omakijiko doesn't care, because the battery they use has a larger capacity!
“Report, the temperature of the battery compartment is rising rapidly.” Just before the Hayashio was at full rudder to avoid the target, an engineer soldier finally noticed something was wrong.
"Damn it, why isn't the liquid cooling system turned on?" Komaki Jizi glanced at it and then reacted: "Quickly, turn on the liquid cooling system! You idiots!"
He had forgotten that this was an order he had given. In order to achieve silent navigation, he had previously requested that all noise sources except sonar be turned off. Therefore, the engineer soldier followed his request and also turned off the liquid cooling system of the battery compartment.
This is actually nothing. Under water, the temperature is not high, and the battery does not need to dissipate heat at all.
Even in previous submarines, I have never heard of a liquid cooling device in the battery compartment. Do lead-acid batteries still need to be radiated?
However, the lead-acid batteries of submarines need to be replaced every few years. The Hayashio was put into service in 1992 and it was five years old last year. All the batteries need to be removed and replaced, and their new generation of batteries The system has also been developed, so Zaozhao has replaced it with this brand-new battery system. Under the same weight, the capacity of this battery system is three times the original!
With this kind of system, there is no need for AIP. This is just the beginning. In the future, when technology continues to develop, the battery capacity can be six times or even ten times higher.
In their eyes, it is the embodiment of their country’s powerful technology, but they don’t know much about the principles of this kind of battery.
This kind of battery is a tall 18650 battery, which is connected in series and parallel one by one to form a battery pack. Considering the terrible heat generated by this kind of battery when it is at full power output, designers specially designed a special liquid cooling system. .
In fact, the battery packs on electric vehicles also require special heat dissipation devices. Generally, air-cooling is used. In addition to being cheap, the more important thing is that it does not consume too much energy. This is suitable for electric vehicles where cruising range is the most important thing. It's important to say. In fact, when it comes to cooling efficiency, liquid cooling is the most suitable. In addition to each battery pack being fully cooled, liquid cooling has another effect: it can also, in turn, heat the battery pack! In the cold north, the battery life will drop rapidly due to the temperature. After all, the battery is a chemical battery. When the temperature is low, the chemical reaction will slow down. If the battery pack is liquid-cooled and heated, it can recover in winter. battery life. However, considering that heating the battery pack consumes energy, the cruising range in winter will still be greatly reduced.
For the sake of safety, the designers of the island country designed complex cooling pipelines for the battery pack of the Zaoshio, which are cooled by liquid. However, the liquid cooling system needs to be turned on to be effective.
Many people will forget about it, because the previous battery compartment did not have such a thing, and after more than half a year of modification, they have had similar experiences. Even if it is not turned on, it will be fine. However, they ignore a premise: that is because they all It sails at low speed underwater.
The faster the speed, the stronger the power required. When the voltage is constant, the current must be increased. When the current doubles, the heat generation will increase four times!
Now, compared to their low-speed sailing underwater, the current has increased tenfold, and the calorific value has to increase to a hundred times!
If the liquid cooling system is not turned on, it will definitely be rejected. If the liquid cooling system is turned on slowly, it will also be a tragedy!
At this time, following the order of Komaki Second Son, the liquid cooling system was turned on. However, at this moment, inside the huge battery compartment, the temperature of one of the 18650 batteries, which was in the worst condition, was rising rapidly!
Three hundred, three hundred and five, four hundred, four hundred and five!
Four hundred and five is a critical value, because when the temperature reaches this value, the electrolyte will burn!
No matter how advanced the temperature control system is, it is impossible to monitor every cell. Now, the temperature of this battery quickly climbed to 450 degrees. Then, flames came out from the inside. The electrolyte burned first, and then the chemical properties The more active lithium metal, the small flame began to expand to the surroundings, and the temperature of other batteries around it was also not low, but this was the last step!
At the next moment, the lithium battery near it also burned. In lithium battery packs, this has a very vivid expression: chain reaction.
PS: The first update in the early morning was a mistake, but I will add another update here, so today is still the fifth update. Thank you for your support.
(End of this chapter)