Chapter 1365

However, whether it is the regular "headquarters building" project of the superior units or the zbdl high altitude platform that Zhuang Jianye intends to point out, it is obvious that this five-year big project has promoted China's take-off and the local economy.

Among other things, in order to support zbdl high altitude platform, four thermal power stations with an installed capacity of 200 MW and six auxiliary power stations with an installed capacity of 50 MW are planned locally.

Thus, the problem of power shortage in the southern foot of Qinling Mountains since the founding of the people's Republic of China can be solved by taking advantage of the key project of zbdl high altitude station.

With the large-scale construction of electric power, the most important infrastructure, the driven fields are almost all-round, such as mineral development. If you want to build large-scale thermal power plants, how can you do without energy? Therefore, the coal, natural gas and other energy industries in the southern foot of Qinling Mountains have ushered in great development.

With the power station, it naturally needs to be transported out, right?

So the supporting transmission and transformation lines also need large-scale construction.

With power station and energy, do they need to be connected?

So the pipeline transportation of natural gas, railway and highway transportation of coal are put on the agenda.

The construction of power station needs construction machinery, and power generation needs industrial gas turbine, which are the key equipment, right?

As a result, China's construction machinery and industrial gas turbines have achieved explosive growth.

In particular, in the field of industrial gas turbine, it is not only required by power stations, but also by zbdl high altitude platform. For example, the air supply system of the simulation experiment cabin in the core of the high altitude platform, which is the key equipment to simulate the high altitude environment, is composed of 24 high-power centrifugal compressors, It can provide air flow rate of more than 1000 kgs in a very short time, and the maximum supply pressure can reach 8 standard atmospheres at the same time.

For this reason, China Tengfei has equipped 12 sets of 6 MW D-33 gas turbines for 24 high-power centrifugal compressors, so that the whole supply system can quickly, effectively and continuously provide the required test environment.

In addition to the air supply system, there are heating and cooling systems in the high altitude test chamber, so as to better simulate the thermal phenomenon of high-speed airflow impacting the engine and the low temperature environment above the very high altitude.

Therefore, rapid heating and cooling is essential.

Needless to say, an improved cupola is needed to heat 1000 kgs air flow to 500 ℃. The core devices are two 10 MW d-47 gas turbines taken off by China.

One day's operation consumes the same amount of natural gas as a medium-sized city with 500000 households.

This is amazing, but compared with refrigeration, heating can be ranked first in energy saving and emission reduction, because it needs to reduce the air flow rate of 850 kgs to minus 70 ℃, which can't be done by ordinary gas turbine. It needs a special large expansion turbine.

This technology is only available to General Motors of the United States and the gas and Power Design Bureau of Russia, and has been banned from exporting sensitive equipment catalogues by the two countries, which can't be bought at any cost.

Since we can't buy it, we can build it by ourselves, so it took China three years to take off, finally conquering the key technology of large expansion turbine, and realizing the complete localization of high altitude platform rapid refrigeration equipment.

But at the same time, the device is also a veritable electric tiger. It can consume 9 megawatts of electricity in one day, and its cooling capacity is enough for a city of one million people to be air-conditioned all summer.

And this is part of the core equipment of the whole high altitude platform. If you want the whole high altitude platform to be fully operational and all kinds of power equipment to be fully open, the daily consumption will reach an amazing 32 MW, equivalent to the daily power consumption of a big city with a population of 5 million.

That's why China Tengfei located zbdl high altitude station in the southern foot of Qinling Mountains, which is close to the aerospace production and manufacturing base, rather than in Xingzhou or cotton, which is more closely related to aviation business.

Because the southern foot of the Qinling Mountains is rich in coal and natural gas resources, its own power infrastructure is also very perfect, there is not much power consumption industry in the local area, and the power transmission is not smooth, all these can become the blood supply place of zbdl high altitude platform.

If it is placed next to cities such as Xingzhou, it is estimated that there will be a big problem. As long as the zbdl high altitude platform is tested and the firepower is fully opened, the city as big as Xingzhou will have to turn off the power supply, otherwise it will not be enough for zbdl high altitude platform.

However, even if the southern foot of the Qinling Mountains is advantaged, new power plants need to be built to support the emergency power supply. Otherwise, once the zbdl high altitude platform collides with the local power grid at peak power consumption, some areas of Gansu and Ningxia provinces at the northern foot of the Qinling Mountains will also encounter the treatment of power rationing.

So if we want to solve these gaps, we have to build more power plants to balance industrial production and residents' life.

However, no matter how huge the consumption of zbdl high altitude platform is, the effect after its completion is obvious. The most direct effect is that China Tengfei found that the change of runoff of the second generation core aircraft and the 2.5 generation core aircraft developed before in the high altitude environment will lead to the surge phenomenon of some models of engines, so it immediately modified and re optimized the structure of the two core aircraft, The layout of some models has been adjusted to solve this problem.

Then there are a series of test results of wd-64vip variable cycle aero-engine.

In the past, even if China Tengfei made wd-64vip variable cycle aeroengine, it would not dare to put it on the plane, let alone show it in front of many leaders.

Because this kind of engine is just like a hypocrite with two sides. It's the same at medium and low altitude, but it's the same at 10000 meters.

After all, the high altitude performance of this kind of dual channel engine which can realize supersonic cruise is really difficult to control, especially the coordinated speed of the first stage fan and the second stage fan combined with the compressor, and the control of the closing and opening time of the duct baffle can not be solved by several formulas and theories.

It's an experience that takes thousands of hours of constant experiment and accumulation to gradually explore.

If there is no zbdl high altitude platform, just relying on the test flight of yun-19nb large aero-engine test platform in China's hands, we will do 10000 more times, and we will not know the operation mechanism of wd-64vip variable cycle aero-engine in supersonic state.

No way. Although the performance of the yun-19nb large aero-engine is unknown, its maximum speed is only Mach 0.83, which makes it hard to fly to supersonic speed. How do you do the supersonic cruise test?

Therefore, the significance of zbdl high altitude platform for China's take-off is not only the achievement of a high-level aero-engine, but also the further establishment of China's take-off's unshakable dominant position in the field of domestic aviation development, and taking it as a springboard to stand upright, point to the world and launch an impact on the three giants with absolute aviation development hegemony, namely, RORO, Pratt Whitney and general motors, Until the establishment of its own aviation hegemony.

Because of this, zbdl high altitude platform and China's take-off are the foundation of the future global aviation hegemony!