A ship used to salvage underwater sunken ships, sunken objects and floating objects on the water surface. It has shallow draft, fast speed, good seakeeping and accurate positioning. It is divided into inland river salvage ship and ocean salvage ship. The former has a displacement of generally 20 to 200 tons and is only equipped with
Booms, winches and simple diving equipment; the latter is equipped with large lifting equipment, as well as diving, compressed air, underwater welding, underwater cutting and other equipment.
Now that we are on the sea, the salvage ship naturally refers to the latter. Today's task is much simpler. It does not salvage the entire hull, but only the dozen boxes. So we only need to let the salvage
Put down the hook on the top, then place the box on the platform where the hook is hung, and then use the lifting equipment to fish it out of the water. Someone needs to cooperate underwater. This process is simple and easy, but it is still quite difficult to actually operate it.
of.
Seeing that Luo Tian didn’t know much about seabed salvage, Hong Luo explained to him: “The engineering operations of salvaging objects sunk in the water include salvaging ships, aircraft, cargo, etc. Salvage operations in waterways and port waters can achieve clearing and navigation.
The purpose of obstacles. Salvage is a comprehensive technology that involves measurement, diving, underwater cutting, sealing, underwater blasting and underwater welding, etc. It is very time-consuming, manpower and material resources, and the requirements for equipment are also very high."
"Oh, what about this salvage ship?" Luo Tian said, pointing to the ship at work.
"This is provided by my Hong family, of course it is first-class." Hong Luo said in surprise: "You didn't see the word "Hong" on the salvage ship, right?"
"Uh, really not." Luo Tian apologized: "I just noticed it now. I was wondering why Shao Bing suddenly became the general manager of the salvage company. It turns out it was thanks to your Hong family."
"Of course you have to repay the favor you owe," Hong Luo said calmly.
"By the way, you just said half of what you said. In addition to machinery and equipment, what methods should be used to salvage the sunken ship?" Luo Tian asked.
"Due to various reasons, ships sailing at sea cause seawater to enter the cabin, causing the ship to have insufficient buoyancy and sink. To salvage the sunken ship, the sunken ship must restore its buoyancy, so that the sunken ship can surface and see the light again. Measurement must restore it.
buoyancy! Hence the buoyancy salvage method appeared.”
"The buoyancy salvage method is to restore the buoyancy of the sunken ship and make the sunken ship float out of the water. The ancient Chinese monk Huai Bing used this method to salvage the sunken ship. The specific process of the buoyancy salvage method: first put sediment on the ship, then tie one end of the rope to the ship, and then tie the other end of the rope to the ship.
One end is tied to the ship to be salvaged, and the sediment is thrown out of the ship. The weight of the ship is reduced, and the sunken ship rises due to the buoyancy of the water, and the sunken ship emerges from the water.
Monk Huai Bing in ancient my country used this method to salvage sunken ships. Nowadays, there are many methods to salvage sunken ships. The commonly used salvage method is the buoy salvage method, which uses a number of buoys to inflate underwater and use buoyancy to float the sunken ship out of the water. Due to the buoy salvage method, When salvaging sunken ships, the buoyancy of the water produced is large and reliable, and the construction is convenient and safe, so the buoy salvage method is often used to salvage sunken ships."
Luo Tian understood: "But we won't need it today."
"There is another way to cover the sunken ship with a sealed container to isolate it from the outside world, and then continuously add salt to the area to reduce the density of this part of the seawater, and the ship will naturally float. Another way is to first
Put sediment on the boat, the more the better (of course you can't let the boat sink), then tie one end of the rope to the boat, and the other end to the boat to be salvaged, throw the sediment out of the boat, and the weight of the boat will be reduced.
The buoyancy of the water makes it rise, and the sunken ship is naturally raised!"
"Oh, I don't know much about shipwreck salvage, but I know many cases of salvage of underwater treasure ships, such as the famous USS Republic in the United States. The Republic was originally named the Tennessee and was equipped with a high-horsepower steam engine.
It could transport 100 passengers and 5,000 barrels of cargo at a time. During the American Civil War, it served as the flagship of the Northern Fleet and played a vital role in the Battle of the Mississippi River.
After the war, the U.S. government decided to use the "Republic" to transport gold coins to the south, hoping to stabilize prices and promote postwar reconstruction in the south. On October 25, 1865, the "Republic" was en route from New York to New Orleans when it encountered a severe storm.
, sank in the waters near Savannah, Georgia. Although more than 60 passengers on board escaped, 20,000 gold coins with a face value of US$20 sank to the bottom of the Atlantic Ocean together with the hull."
"Yes, the company responsible for salvaging the Republic is a well-known American salvage company. It is equipped with a 75-meter-long "Odyssey Explorer" ocean exploration and support ship. The ship is equipped with a 7-ton, 205-horsepower remote-controlled seabed operation
car, capable of diving to 2,500 meters
In the deep sea, you can freely take photos, videos and inspect seabed targets. It can be said to be the most powerful salvage equipment in the world." Hong Luo's face suddenly sank: "However, I have always believed that while salvaging sunken ships, we must protect them well.
The integrity of the ship is a pity..."
Although Hong Luo didn't say the rest, Luo Tianneng could roughly guess that many salvage companies salvage sunken ships for commercial purposes, which led to the consequences of "profit-only". The hulls were often damaged, and these ancient ships were also a fortune.
Cultural wealth was damaged due to salvage, which really makes people wonder whether salvage is the best result for the sunken ship?
Just as the two were chatting in full swing, they heard an exclamation from the salvage boat opposite. What happened? Shao Bing beside him looked over there: "It seems that the box fell into the sea again..."
When Shangguan Fei heard what Shao Bing said, he suddenly took a step back with a pale face: "You are too unreliable in your work..."
Before he finished his reprimand, someone poked his head out from the sea: "It's okay, the box is not damaged at all, it's really amazing!"
Shangguan was speechless at this time, but he was like this. How could he easily let go of the opportunity to attack Shao Bing? He didn't know what Shao Bing owed him in his previous life: "When can the salvage be completed?"
"According to the current progress, all the boxes will be ready to go to sea in half an hour." Shao Bing looked up at the sky: "It can be done before dark."
Luo Tian had an idea and pulled Shao Bing aside: "I have something to discuss with you."
"What's up?"
"The three million reward you promised me..."
"Don't worry, after the matter is over, I won't miss you even a penny." Shao Bing looked a little coldly: "Luo Tian, I thought you could trust me."
"No, you misunderstood. I wanted to say that I don't want three million." After Luo Tian finished speaking, he saw Shao Bing's surprised expression, and he immediately added: "But I still have a subordinate, and I don't want three million."
Return it to you, you have to do something for me, this is my entrustment to your organization."