Fuel-steam combined cycle technology, if you want to say how new the technology is, it must not be, it has been used in the construction of large surface ships for a long time, and this kind of fuel-steam combined cycle unit on large warships has not been unseen. Pen & Fun & Pavilion www.biquge.info

For example, the Soviet-built Glorious-class cruiser has a power system that uses this combined fire-steam design, while the entire power system of the Glorious-class cruiser is provided by the Ukrainian Dawn-machine design and production complex.

Therefore, as far as the design of the power system of this fuel-steaming combined cycle is concerned, this thing still belongs to Ukraine with some experience, but the relevant technology of Ukraine was first used on warships, and the civilian technology has not yet seen signs of use, not to mention that the entire Soviet Union's heavy-duty gas turbine industry is indeed not good, so there is no energy to develop the combined fuel-steaming power generation technology in the Soviet Union, not to mention Ukraine after the collapse of the Soviet Union. There is no relevant force to support the Sugon-Machine Design Consortium to continue to develop in the combined technology of combustion and steaming.

Factory 420 has been in contact and cooperation with the Dawning-Machine Design Consortium through the GT-25000 gas turbine project before this, and must still have some understanding of this unit.

This slap on the ass, Yang Hui finally remembered: "The fire-steaming combined cycle technology of the Ukrainian Dawn-Machine Design Consortium, I am about to forget it, it exists as a power system used on the Glorious-class cruisers, but I heard that this technology has exposed a lot of problems when it is used on the Glorious-class class, do you know all this?" After we can't put a lot of effort into getting the technology back, it turns out to be a bunch of immature things, which is not as practical as what we have buried ourselves in. ”

For the power system of the Glorious-class cruiser, there are too many things worth criticizing about this guy, not even just the Glorious-class cruiser, just looking at the entire Soviet Union The cruiser power system is actually a strange design scheme.

For example, the power system of 2 M-70 cruising gas turbines, 2 exhaust gas circulation cruising boilers, and 4 M8KF acceleration gas turbines configured in the glorious class, the entire power system composed of these 6 gas turbines and two steam turbines driven by exhaust gas boilers, Yang Hui wanted to ask how many engines were to be installed? And then there is the joint nuclear-steaming design of the Kirov-class nuclear-powered cruiser, which is really laughable.

The above design also led to the extremely complex power system of the two main cruisers of the Soviet Union, which simply challenged the limits of the processing and manufacturing capacity of engineers and factories, and the Kirov class was a little easier to say, although the entire power system appeared in the coexistence of heavy oil boilers and nuclear power two steam generating devices, but in the end this was only by the steam turbine to output power, and it was not too bad in the design.

However, when the power system of the Glorious-class cruiser is cruising, the gas turbine and the steam turbine output power are almost at the same time, and the final power output of the gas turbine and the steam turbine needs to be completed by an extremely complex gearbox to complete the power parallel, and this is the reason why the power system of the entire Glorious-class cruiser is not very reliable in use.

Yang Hui is not very clear about these problems, but he has long been greedy for the Dawn-Machine Design Consortium's fuel-steaming combined cycle technology, and must have paid great attention to this only actual marine fuel-steaming combined cycle system, and naturally heard about the unreliable power system of the glorious level, but does this have anything to do with the technology required by the 420 factory?

Hurriedly shook her head again, but she looked mysterious, explaining the news she got from the dawn: "The glorious burning-steaming combined power system is indeed not very reliable, I have also studied this thing through various channels before, and came to the conclusion that the reason why this whole power system is unreliable is because the design and manufacture of the reducer is not good, which has caused the embarrassment of the entire power system." ”

The large reducer for ships, especially for the reducer with different power output of two different power take-off equipment for parallel operation, the power ratio of the two power systems must not be too much worse, otherwise the development of the reducer can drive all the genius designers crazy.

In the early years, the reducer design of diesel-fuel combined power was like this, and the reducer of fire-steaming combined power was also not bad, but all ship power systems that require mechanical transmission need to use reducer design, unless the entire power system abandons the reducer design and enters the era of more advanced electric drive systems.

Only when the electric drive is used, it doesn't matter if you are a gas turbine, a steam turbine, a diesel engine, etc., you all give me electricity, wait until the electricity is sent out, and then transmit the energy through the cable, and finally rely on the electric motor to drive the propeller, so that there is no need to continue to gnaw hard and reducer technology.

Since the combined fuel-steam power system used on the ship can solve the problem by electric drive, this at least shows that the combined fuel-steam cycle technology is feasible to generate electricity, which will not cause the entire power system to be unreliable due to the parallel deceleration as in the Glorious-class cruiser.

"So, what you want to convey to the factory director is that if the combined cycle technology of the Sugon-Machine Design Consortium is only used for power generation, there is actually no big problem, and their exhaust gas boiler, gas turbine, and steam turbine technology are all feasible, right?"

Now it is a complete understanding of the technical level of the Dawn of Ukraine-Machine Design Consortium of the combustion and steaming system, so in terms of the current situation, if the 420 factory does not hurry up to get the relevant technology back, it is really intolerable.....

It is not suitable for the cruiser of Maozi, but after the relevant technology, scientific research and design personnel are brought back to the 420 factory, this can directly start the development of large-scale civilian combustion and steaming combined cycle generator sets, and all these technical difficulties can also be solved more securely, you can see the future of the 420 factory, as long as the development of this complete set of technology, the bright future is just around the corner!

You must know that in terms of the thermal efficiency of the combined cycle generator set alone, this can definitely increase the efficiency of a single gas turbine generator set from about 30% to more than 45%, and if you work hard in technology and squeeze the thermal efficiency of the generator set a little, it is not an unattainable goal to achieve a thermal efficiency of 50%.

It has always been the arrival of the new century, one of the world's three major heavy-duty gas turbine giants, Siemens of Germany, manufactured the SGT6-8000H heavy-duty gas turbine, which is a large-scale power generation equipment that has created a number of world records, which has increased the net efficiency of the gas-steaming combined cycle generator set fueled by natural gas to 60.75%, and has since promoted the world's clean energy forward with higher efficiency.

Since the fuel-steaming combined cycle unit in the new century can achieve a thermal efficiency of 60%, as long as the 420 plant recognizes that the technology has been developing in a bury head, is it difficult to burst out high-efficiency generator sets in the new century?

It is necessary to know that the 420 factory has the aero engine technology of the entire United Aero Engine Company as a backer, and as long as you are willing to install the technology used in many aero engines on the heavy-duty gas turbine, the final heavy-duty gas turbine thermal efficiency is definitely rising, which is absolutely unquestionable.

Moreover, with the same technology, the 420 factory is backed by the United Aero Engine Company, which can completely achieve a lower cost of technology use, coupled with the lower labor cost of the Republic, and the products manufactured will definitely not be low in terms of international competitiveness. (To be continued.) )