Chapter 243 Chai-Chai joint propulsion plan

  Cong Ju looked at Qin Tao with full admiration, the contract was signed by Mr. Qin, that's how awesome it is!

  At first, she thought that it would be pretty good to get the other party to accept the price of a cargo ship of 60 million US dollars. Unexpectedly, the other party would voluntarily contract the construction of the dock, which is simply unbelievable.

  However, the contract is in sight, and all of this is a fact.

   "Everyone, our shipowner is very much looking forward to shortening the construction period as soon as possible, so now we need to brainstorm and find some ways to speed up the construction of these two cargo ships."

   At this time, Qin Tao called everyone to a meeting, and of course there were Belgians present. Qin Tao did what he said. Since he wanted to help the other party complete the construction of the ship as soon as possible, of course he had to call everyone together to find a way.

   "That's right, the shorter the construction period, the better." Kami said, looking eagerly at the people present.

So, Cong Ju coughed, and then said: "Mr. Qin, if we want to speed up the construction period, I have a way. For example, when we are building the dock, we will build a sub-unit of about 1,000 tons directly next to the dock." Sections, and after the dock is built, these sections can be hoisted and welded directly, which can greatly shorten the construction period.”

   This plan was originally thought up by Qin Tao, but now, it is inappropriate for Qin Tao to say it.

  Cami's eyes lit up: "Yes, this is a good idea! Mr. Qin, you have a lot of talents here!"

  Cong Ju lowered her head modestly.

"There is a solution, but we still lack enough workers. After all, we are carrying out many projects at the same time." Qin Tao said: "We can first transfer some people from other projects, and then we need to continue to recruit workers. Recruit excellent skilled workers."

  Mingzhou Shipyard is expanding too fast! Their excellent workers are always in a state of shortage, so they have to continue to recruit.

   After Qin Tao finished speaking, he looked at his father who was dozing aside: "Director Qin, I'll leave this matter to you."

"Um?"

   "We still need at least hundreds of excellent workers, all of which are handed over to you."

  ?

  Qin Baoshan had helplessness in his eyes.

   "Continue to poach people from other shipyards, no matter what the conditions are, they must also poach their excellent workers. This is the order of the group."

Now Qin Tao already likes this kind of feeling very much. His father is usually arrogant and calls Qin Tao a little bastard, but now, Qin Tao is his superior and gives orders to him. , Dad has to abide by it.

   "The construction task this time is very important, so Cong Gong, you should be in charge. You can appoint a deputy for the natural gas ship." Qin Tao said.

   Cong Ju is definitely the leader in the shipyard. Qin Tao is most at ease with Cong Ju, so of course, this difficult task must be handed over to Cong Ju first.

  Cong Ju nodded: "The deputy leader of our welding team can take on the task."

  Cong Ju also knows that what Qin Tao lacks the most is talents who can take the lead, so he has been deliberately cultivating them. Now there are already people who can take on the burden, as long as she takes care of them.

   "Boss Qin, thank you for your support." Kami said gratefully.

  Qin Tao's arrangement, even if he may not be able to complete it according to the construction schedule, at least he is trying his best. For the desperate Kami, this is already the greatest kindness.

"Please rest assured that we will try our best to build according to the date you need." Qin Tao said: "Next, we have a plan for a 200,000-ton bulk carrier. If you need it, you can order it at any time." Order."

   Anyway, I can't get through the Suez Canal. Of course, the bigger the better for this kind of ship.

  When talking about conditions, Qin Tao proposed this type of ship, but Kami didn't pay attention to it. Until now, everything has been arranged in place, and Kami finally has the mood to think about other things.

  At this time, when Qin Tao mentioned the 200,000-ton bulk carrier, Kami opened his eyes wide: "200,000 tons?"

   "That's right, it can transport 180,000 to 90,000 tons at a time, and the economic benefits of this kind of bulk carrier will be higher."

  Cami swallowed: "If this kind of bulk carrier is entrusted to you to design, will it be more expensive?"

   "It's not expensive, it's not expensive, it's still 100 million dollars." Qin Tao said: "If you build ten pieces, then on average, the design fee is only 10 million dollars, which is definitely worth the money."

   That's enough pain! Kami secretly thought in his heart, and he quickly changed the subject: "This kind of bulk carrier has a larger tonnage, will it face more serious risks such as fracture?"

   "Of course not, we will use steel plates with higher strength, such as 500 MPa, to absolutely guarantee safety." Qin Tao said.

  Only they are willing to use high-strength steel plates for such a luxury.

   At this time, Carrasco couldn't help asking: "Excuse me, which steel factory do you plan to use to produce steel plates?"

  The contract has been signed, and the strength of the ship's steel plates has been determined, but they still don't know where Mingzhou Shipyard plans to use the steel plates.

"Of course it belongs to our Mingzhou Iron and Steel Plant. If you have time, I can take you to see it tomorrow." Qin Tao said: "Our Mingzhou Iron and Steel Plant has first-class production equipment and can produce various high-performance As you have seen, we are building aircraft carriers and destroyers on the berth, and these warships are also made of steel produced by our Mingzhou Iron and Steel Works."

  Cami and the others came here, and they have already learned about several famous steel-making enterprises here, but they absolutely did not know that there is actually a steel factory here in Mingzhou!

   "I heard that the best steel products in China come from Angang Steel, Baosteel, and Mingzhou Iron and Steel Works?"

   If it wasn't for the fear of causing misunderstanding, they probably already wanted to explain what the state steel plant is? Never heard of it!

Qin Tao smiled: "The development of our motherland is changing with each passing day. What you know is already old. The production equipment of our Mingzhou Iron and Steel Plant is also imported from the island country. It has high-quality products like Ansteel and Baosteel. Go tomorrow You'll know it after seeing it. Director Qin, take these guests to our steel factory tomorrow."

  Anyway, Dad is like a hard-working old scalper, and there is no problem in arranging him to do these things.

   "Yes." Sure enough, Qin Baoshan nodded.

  Qin Tao has already fooled the Belgian. Anyway, the contract is signed, and the down payment will arrive tomorrow morning.

  Qin Tao has more important things to do.

  For example, a meeting.

  Yang Dawei and everyone in the design office sat in the conference room, looking at Qin Tao with piercing eyes.

   "Boss Qin, you can just give an order. A 200,000-ton bulk carrier is a piece of cake for us." Hu Jia said excitedly, his eyes were full of little stars.

   "200,000-ton bulk carrier? When did I say that?" Qin Tao looked at these people in surprise.

"President Qin, didn't you tell the Belgians that you have prepared a design for a 200,000-ton bulk carrier for them?" Yang Zhaoxiang said, "Although this kind of bulk carrier is not what we are most looking forward to, but, Anyway, that's a job worth 100 million dollars!"

  Qin Tao finally realized that he was fooling the Belgians, but he also fooled these people into obsession?

   "I'll talk about this kind of ship later. The task I entrust to you now is to design a frigate with a displacement of 4,000 tons." Qin Tao said, "Is this what you like?"

  Everyone's eyes widened.

   "Boss Qin, a frigate of 4,000 tons?" Zhang Chao said in surprise, "How is this possible?"

"Look at you guys, haven't you seen the market? I have already reported this project to the Navy leadership. According to their progress, it will take about a few months or even half a year before the project will be officially approved. At that time, we can Take your own detailed design drawings to the Navy to bid, and I guarantee that no one can bid us."

  Everyone's faces were full of excitement, but Yang Dawei frowned slightly, which was caught by Qin Tao at a glance: "Why, Yang Gong, do you have any concerns?"

"President Qin." Yang Dawei gritted his teeth, and finally said: "The warship order is a piece of fat, and many shipyards are staring at it. We already have two contracts for 051C, which has already made some brothers jealous. Now, If we take all the frigate contracts into our own hands, there will be no rumors, which will be detrimental to you and your father-in-law."

  Yang Dawei's concerns are not unfounded.

Even if these are all from bidding, the whole procedure is fair and reasonable, but there will always be people gossiping about why Mingzhou Shipyard, a factory that has never received orders for warships, keeps receiving orders from the Navy. Is there something inside?

   Once rumors are spread maliciously, it will still bring a lot of trouble to Qin Tao and Wu Shengli.

  Yang Dawei is very old in this industry and knows a lot of things, so now, he reminds Qin Tao.

  It's easy to hide with a sharp gun, but it's hard to defend against an arrow in the dark. Spit stars and drown people!

Qin Tao smiled: "Mr. Yang, you are right. The frigate is different from the destroyer. The frigate needs to be built in large quantities. Therefore, if we eat all the fat, it is not suitable. So, we are We have to figure out a way."

When Qin Tao just decided to stay and lead the shipyard out of the predicament, what he encountered was still a mess, so they had to compete for orders, but it is different now. Now their shipyard continues to grow and grow, and there are already a large number of them. Orders, profits have also increased, and now they don't need to eat alone.

   Eating too much alone is not necessarily a good thing.

  However, it would not be in line with Qin Tao's style to let others take advantage of it directly. Therefore, at this time, Qin Tao said to find a way, and everyone was looking at Qin Tao expectantly.

   "When bidding, we must go all out, but after the bidding is over, we can subcontract part to other units." Qin Tao began to talk about his own ideas.

   Subcontract? Empty glove white wolf? Sure enough, Boss Qin will never be soft-hearted when it comes to making money. Moreover, while making money, he also appeases his brother units!

"For example, the navy wants to start construction of four frigates at one time. After we bid, we can only start construction of two frigates. The remaining two ships will be handed over to brothers to build them, whether it is Huating Shipyard or Bincheng Shipbuilding. factory. However, we are still the general contractor, and this cannot be changed.”

  It doesn't matter what general contractor or subcontractor below, in short, as long as there are orders and money can be made.

   "In this case, China Shipbuilding Industry Corporation may call you a prankster." Yang Dawei said.

Qin Tao smiled and said, "Just scold. If they are capable, they will bid for it! In addition to subcontracting to them, we can also provide them with other benefits, such as introducing foreign customers to them and letting them create foreign trade. ship, or transformed into a coast guard ship, etc.”

   This is just Qin Tao's temporary idea. If you eat meat yourself, you have to give soup to others. As for whether this method will work, we can talk about it later. Next, let's talk about the design idea of ​​this frigate.

  After Qin Tao explained the overall design, everyone became excited again, and they had completely shifted their attention to the technical aspect.

   "Boss Qin, are you sure you want to use four diesel engines?" Yang Dawei asked Qin Tao.

  Qin Tao nodded: "Don't use a diesel engine, do you still use a gas turbine? We don't have that either!"

  Frigates are equipped with a large amount of equipment, and must be economical. Gas turbines, even if they can be produced domestically in the future, are reluctant to be used on frigates.

   "Yes, when we were demonstrating the 053 frigate project, we had requested to use a combination of diesel and fuel, but because the gas turbine was not qualified, we could only come up with two engines and a two-axis propulsion plan." Yang Dawei was deeply touched.

Yang Dawei had previous work experience and participated in the development of many projects, including the Type 053 frigate. Under the background of that era, the army put forward very high targets. For example, the speed should reach 33 knots, and the power system should use a 390-type diesel engine. Combined power plant with 401-II gas turbine.

   This was not enough. Later, they continued to ask for an increase in speed, preferably up to 38 knots, which was simply a challenge. Finally, they decided to use two 18E390VA medium-speed diesel engines as the cruising unit, and one 851-type gas turbine with a rated power of 16,170 kilowatts as the accelerating unit, with a total power of 46,000 horsepower and 3-axis propulsion.

   Although the speed index can be achieved in this way, the life of the Type 851 gas turbine developed at that time is only 200 hours, and it cannot be installed on the ship at all.

  The strides are too big, and it is easy to pull eggs, so they finally decided that the main engine will use two 18E390VA medium-speed diesel engines with a power of 12,000 horsepower and a 053 frigate of more than 1,000 tons, and it came out like this.

Later, this frigate continued to be changed. Up to now, it has developed into a 053H2G frigate. Because of the large changes compared with the previous ones, it is also called Jiangwei-class frigate by NATO. At present, the first warship is about to complete the final sea trial. It will be delivered to the Navy soon.

   For the navy, this 053H2G frigate is competent. It is the first closed frigate in China with air defense, anti-ship, and helicopter anti-submarine capabilities. It is a good step for domestic newcomers to run fast and slowly catch up with the advanced level of the West.

   "No, that's not what I said." Yang Dawei suddenly realized that he had just been taken aside by Qin Tao, and almost forgot the question he wanted to ask.

   "I mean, if we use four diesel engines to drive two propellers, then this will involve the problem of paralleling cars. We have never done this before, and we don't have any technical reserves!"

   Yang Dawei is worried about this!

  For a frigate with a displacement of 4,000 tons, it is absolutely impossible to use two diesel engines, and four must be installed. However, it cannot drive four propellers, so a plan must be made where two diesel engines drive one propeller.

  In specific technical terms, this is called CODAD.

  Two diesel engines of the same model drive a propeller through a transmission mechanism, which is skillful.

When cruising, only one diesel engine is used, which is more fuel-efficient. After all, cruising usually does not need to be fast. When it is time to accelerate or sprint at full speed, let the second diesel engine join in and work together. Two diesel engines must be closely coordinated, and the output power must be exactly the same!

  In the world, this has not been done before, this is an innovation!

Other power systems also have this problem. For example, the world’s popular diesel power scheme uses diesel engines at low speeds and gas turbines at high speeds. At this time, it is inconvenient to combine gas turbines and diesel engines, so most of them use diesel engines. Combustion-alternative scheme (CODOG), either diesel engine or gas turbine is used alternately, which integrates the advantages of high power of gas turbine, fast start-up acceleration and fuel saving of diesel engine.

   Only technicians from a few countries can solve the problem of combining diesel engines and gas turbines, and have made a special CODAG, that is, diesel-fuel combined power system.

   (There are others, the hero of East China will not be popularized.)

There are very few warships driven by the combination of diesel and diesel. The French Lafayette class is one of them, but the Lafayette class uses a main and one auxiliary mode, and it does not use two identical engines. plan.

  So, after hearing Qin Tao talk about the specific technical details, Yang Dawei began to struggle with this issue.

   In the past, if there were several engines, they could drive several propellers, each doing its own work, and there was no problem. Now, it is not so easy to drive two engines in parallel to drive one propeller!

"What's so difficult about this?" Qin Tao swished out a sketch: "There are two engines on both sides, the small gear is driven by the clutch, and the big gear is in the center. This can be used as a reducer, and it is enough to drive the propeller behind it to rotate. , we need to find the mathematical models of these two engines and propellers when they are working, and then perform simulation calculations to find the best plan for paralleling..."

   To Yang Dawei, these seemed difficult, but to Qin Tao, this was nothing at all, because Qin Tao in his previous life already knew these techniques.

   At the same time, this also reflects the difference between Wu Shengli and Yang Dawei.

  Although Wu Shengli is the leader of the navy, he is not familiar with the specific technical details. When Qin Tao proposed this plan, Wu Shengli was concerned about whether the power of the engine was sufficient. Wu Shengli didn't care about the others. However, when he arrived at Yang Dawei's place, he had to think clearly about how to operate the two engines so that they could work in harmony.

   It's just that the plan proposed by Qin Tao is too lofty, right? Build a mathematical model and then perform simulation calculations? This thing sounds very mysterious.

   "I seem to understand." Zhang Chao said, "We need to use computers to solve this problem!"

   "That's right, that's it, then this task will be handed over to you!" Qin Tao immediately assigned the task by name: "You don't need to do other designs, just make the simulation model of this parallel car."

  Zhang Chao nodded: "I will work hard."

   "Mr. Yang, do you have any questions?" Qin Tao continued to ask.

  Yang Dawei is an experienced technician, his opinion can supplement some of Qin Tao's mistakes.

"Others are nothing, but these are based on the premise that our comrades in relevant units can successfully imitate them, such as air defense missile systems, roof radar systems, etc." Yang Dawei said: "These subsystems are going to have problems. We might get caught blind."

  Qin Tao nodded: "These won't be a big problem."

   "By the way, the processing of these components will be a big problem, especially to withstand the power of several thousand horsepower. The reliability of the clutch that disconnects and connects power is very important, and it will probably take a lot of thinking." Yang Dawei said.

Qin Tao smiled: "You think of this thing as the friction plate clutch in the car? No matter what kind of friction plate, it can't stand this kind of power! What we want to use is a special clutch with a synchronous mechanism. The toothed clutch is composed of a ratchet pawl and a helical spline. Under the true torque, the clutch is automatically engaged, and under the reverse torque, the clutch is automatically disengaged. This kind of clutch is completely rigid transmission, which is impossible at all There are friction linings. There is a lot of power delivered, and the size and weight are small.”

   While talking, Qin Tao simply drew the design of this clutch. Yang Dawei couldn't help giving a thumbs up when he saw the exquisite concept.

   "Mr. Qin, your design is amazing!"

   "Well, I think so, our design must apply for a patent, this is our technology!"

   "Boss Qin, it takes time to apply for a patent. In order to avoid leaking secrets, I think it's better for us to produce these devices ourselves."

Qin Tao nodded: "That's right, let our propeller factory produce it. There are CNC machine tools over there. As I said before, if they change their name, they will call it a machinery factory. It must be called a propeller factory. It will have to be renamed later.”

   After Qin Tao designed the turbocharger, he planned to hand it over to Huating's factory for production. It seems that those guys still can't clearly understand their own position!

  (end of this chapter)