Great warships

Chapter 92 Old Maozi's Gas Turbine
Elder Pan nodded: "Yes, if this problem cannot be solved, there will be big problems. We cannot hand over defective warships to the Navy."

"It is really difficult to solve, but I have a solution." Qin Tao said: "We can organize a research team to analyze the various possible reasons for the poor anti-interference effect, arrange all the reasons, and then one by one, one by one. Test it bit by bit, so you can potentially find the real source of the interference and fix it smoothly."

Old Pan's eyes lit up: "Yes, what you said is indeed a good method, we will test it according to this method!"

His throat continued to squirm, and he swallowed the rest of the words back to his stomach. He originally wanted to invite Qin Tao over, but Qin Tao is not in this system after all. Once he comes in, there may be a risk of leaking secrets, so, I still don't need him for the time being. If you have this idea, if you follow this way, maybe you can solve the problem?

"Come on, Qin Gong, thank you for your valuable suggestion." Elder Pan raised his glass.

"Mr. Pan, I'm just talking nonsense, just for fun. The specific operation is still done by you and your professional team." Qin Tao said: "However, it's a pity that we can't get more gas turbines."

Mentioning this incident, Elder Pan was also emotional.

In the 80s and the Western honeymoon period, China imported the most advanced LM2500 gas turbine from the West. The Type 052 destroyer currently under construction uses this gas turbine as the main power, supplemented by a diesel engine imported from Germany, and adopts the combination of diesel and natural gas. , has reached the world advanced level.

(A lot of data say that it is a diesel-ran combination. In this method, the gas turbine and the diesel engine will work together to provide power to the propeller, which means that outstanding paralleling technology is required. I don’t know if it has reached this level. Compared with the diesel-ran combination The low technical difficulty is the alternation of diesel engines, which is simple, use diesel engines for patrol at low speeds, and gas turbines for high speeds, and the diesel engines are turned off. Everyone does their own work, and the output is relatively easy to solve.)
The gas turbine is converted from an aero engine. Its biggest feature is that it starts quickly. In the past, all warships used boilers. Before starting, it took a long time to emit large black smoke to burn the boiler, and the steam pressure was sufficient to start.Gas turbines, after a few seconds of ignition, can output full power.

"That's right. At that time, a total of five were imported, four were used on warships, and one was used for research. If we know about the changes in the international situation, we should import a few more. However, our country is poor." Pan lamented .

Domestic warships have reached the world's advanced level, but who would have thought that they would soon be beaten back to their original shape.

"Our country's scientific research foundation is too weak. It is not easy to develop gas turbines based on our existing aero engines. Find a way to import from abroad, if the west is not bright and the east is bright, there will always be opportunities." Qin Tao said.

Since the 60s, the West has started to take the gas turbine route, and of course the country has also taken a fancy to it, and took out the treasures at hand to try to improve gas turbines.The initial target was the turbojet-8 engine of the H-[-], which is the largest in the country after all.Other engines were later modified.

Among them, the 6-type gas turbine developed based on the turboprop-409 aero-engine is currently the only one that has been successfully repaired, and it has been successfully applied to the 722-type hovercraft as the main power device.

In the 70s, the "Spey" MK202-turbofan engine was introduced from the United Kingdom and localized as WS-9.Therefore, the domestic also took a fancy to this engine, and modified it into GT-1000 with a power of 10MW. (MW)

However, it has been a matter of 93 that the finalization was successful. Moreover, the localization of Turbofan-9 has been abandoned halfway, and it has been converted into a gas turbine, which is also a castle in the air.What's more, this power is not enough.

The current imported LM2500 has an output power of 23.3MW, and one unit exceeds the output power of two GT-1000 units.

"A few years ago, the naval gas turbines we modified with WS-8 have completed the durability test and were originally going to be transferred to the production stage. However, after the international situation changed, we began to contact foreign countries in order to obtain better equipment. Speaking of this, Mr. Pan was very emotional: "At the beginning, we negotiated with Rolls-Royce to introduce their Olympus TM3B gas turbine, which is the power of the Type 42 destroyer. Later, the Americans took the initiative Said that it can be exported to our LM2500, unexpectedly, the international situation changes so quickly."

Speaking of these, Mr. Pan is a little bit embarrassed. Self-research is lagging behind, and importing is the best way to improve. However, once faced with changes, people will get stuck. Therefore, no matter when it comes, it is best to have your own what!

"Yes, this is a pity." Qin Tao said: "However, the turbojet-8 overhaul time is short and the fuel consumption is high. When it was possible to introduce it at that time, we did not make a mistake in taking the introduction route. In the future, we still have opportunities. "

I have already mentioned it once, but unfortunately, Mr. Pan didn't understand.

After all, this can't be blamed on Mr. Pan. Mr. Pan knew that Qin Tao showed his skills when debugging electronic equipment, but he didn't know that Qin Tao had been to Lao Maozi many times to be a bad guy, so even if Qin Tao reminded him, Mr. Pan would I didn't answer this question.

"You mean, imported from Lao Maozi?" Yang Dawei's mind turned quickly because he knew about the dredger.

"Yes, the gas turbines at Lao Maozi's place are good." Qin Tao said: "It is said that the superior is going to Lao Maozi's place to inspect fighter jets. Anyway, he will go there, and inspect the gas turbines there by the way. Their GTD15000 is also very good."

(The numbering of Lao Maozi is still very confusing. Some have M numbers, such as this gas turbine, and another number is called M90. There are also those starting with T, etc., until Lao Maozi separated, and Ermao was very concerned about all turbine products. Regroup and name, using the method of "UGT + number (rated power)". For example, this GTD15000 was renamed UGT-15000, and the Russian number is: ГТД-15000. Of course, the latter number is not certain, after all, the power can be promoted)
"GTD15000? Young man, you are familiar with Lao Maozi's gas turbine." Elder Pan gave Qin Tao an approving look.

Of course Qin Tao is familiar with it, he used it often in his previous life!

The GTD15000 gas turbine is an axial-flow three-shaft gas turbine with a maximum power of 20MW. It has been sharpened for ten years by Lao Maozi. It was developed in 1971, successfully developed in 1984, and mass-produced in 1988. It is Lao Maozi's best advanced gas turbines.

Among them, DA90 and DO90 are divided into two types according to the difference of the power turbine type. Among them, the DA90 power turbine is of level 4, which can be made to turn left or right; the DO90 power turbine is of level 3, and is used for ships through the reversing mechanism. Can be reversed directly.

As for the famous GTD25000, on the basis of this engine, a first-stage compressor is added and the front temperature of the turbine is increased. After these improvements, the power is increased to 26.7MW, which is at the same level as the LM2500, and can be used to drive large warships.

"I have a little understanding." Qin Tao said: "Mr. Pan, our aero engines are still in serious trouble. If we want to solve the problem of marine gas turbines, we can only buy them out, including technology. We should have made plans early."

(End of this chapter)