On May 16, Bohai Equipment petrochemical Equipment Company completed the comprehensive system design work of the cigarette machine for the Shandong customer's 2.04 million tons/year K-COT propylene production project in two months. This is the first highly reliable type of smoke machine in China, the inlet temperature of the flue gas reaches 721 degrees Celsius, marking the Bohai Equipment petrochemical Equipment Company smoke turbine research and development another solid step.

From the original smoke turbine power of 3000 kilowatts, to the current maximum power of 33,000 kilowatts, since 2002, our country again smokeless gas turbine import, before the imported smoke turbine has gradually been transformed or replaced by domestic products.

Why can the cigarette turbine with a history of 45 years continue to be favored by the market? After 65 years of experience, why can Bohai Equipment petrochemical Equipment Company keep "youthful vitality”? “Since its founding in 1956, the company has been driven by technology.” hang Yong, manager of Bohai Equipment petrochemical Equipment Company, gave the answer.

From follow international to international advanced

Among dozens of technical products of Bohai Equipment and petrochemical Equipment Company, "Bohai Flying Goose" gas turbine is undoubtedly the most amazing "representative work".

Flue gas turbine is the standard configuration of FCC unit in refining and chemical enterprises. It takes the high temperature flue gas produced when the regenerator of FCC unit is burnt as the medium to expand and do work, or drive the main fan, or drive the generator, the energy saving and environmental protection effect is very significant.

"We can't let foreigners stick our high-end equipment manufacturing neck! “After hard work, in April 1976, China's first YL3000A gas turbine was successfully manufactured in the former Lanzhou oil refinery Machinery Plant (now Bohai Equipment petrochemical Equipment Company).

The pace of technology development has never stopped. From the end of the 20th century, when the largest domestic YL ⅱ 18000A double-stage gas turbine trial production was completed, Bohai Equipment and Petrochemical Equipment Company step by step developed and formed 3000 kw, 6000 kw, 10,000 kw, 18,000 kW, 33,000 kw series of gas turbine products with multiple models and specifications. It is understood that the domestic refineries are running about 200 gas turbines, which can produce energy saving benefits of nearly 8 billion yuan per year, 90% of which is contributed by Bohai Equipment petrochemical Equipment Company.

With the continuous progress of gas turbine design and manufacturing technology of Bohai Equipment petrochemical Equipment Company, the application field has also been expanded to the chemical industry. The company's technical level from the original with foreign technology, to the international advanced level, become the world's largest manufacturer of gas turbine smoke, supply more than half of the world.

From "Oil manufacturing" to "Oil 'smart' Manufacturing"

"They say good wine needs no bush. That’s true, but it depends on what people want to drink. If they don't like it, good wine won't have a good market. “After decades of experience in the oil equipment manufacturing industry, Zhang Yong explained the true meaning of the healthy development of equipment manufacturing enterprises, that is, the products follow the demand.

In recent years, the demand of the user unit for the gas turbine is focused on the five words "stable and full of excellent”. In this regard, Bohai Equipment and Petrochemical Equipment Company seize the rare opportunity of the great development of domestic and foreign refining market, concentrate the company's manpower, material and financial resources, and start the battle of high-end "intelligent" manufacturing.

Bohai Equipment petrochemical Equipment Company has been improving and improving the performance of the gas turbine. Using the international advanced design method and CFD flow field analysis software, the blade profile suitable for the large enthalpy drop two-phase flow has been studied. A new type of highly efficient anti-scaling gas turbine was designed and manufactured by means of reasonable matching and optimized design of speed, disc diameter, blade height, stator and stator outlet angles, supplemented by more than 10 new technologies such as flow field optimization design and hake energy polishing of key parts. The efficiency was increased from 78% to 82%, and the scaling of catalyst could be prevented. The overhaul cycle of the smoke machine has been improved from 1 year to 3 years or even 4 years, which is basically synchronized with the overhaul period of the refinery, providing strong technical support for the refining enterprise to improve the quality and efficiency.

With the increase of national environmental protection, refining and chemical enterprises have implemented desulfurization and denigration transformation. Aiming at the problem of decreasing efficiency of gas turbine caused by the change of refining process, Bohai Equipment petrochemical Equipment Company has improved the recovery power of old tobacco machine in service by 3% to 5% generally through technical transformation, and the highest power has been increased by more than 1000 kilowatts compared with that before transformation, which can increase the benefit of customers by more than 4 million yuan a year.

In 2020, Bohai equipment of petrochemical equipment company to carry out the "improve the efficiency of steam turbine reliability and smoke technology development" during the project, completed 20 efficient inhibition smoke gas of designing and manufacturing work, smoke and ten of the conventional gas turbines transformation on flow design work, improve the safety reliability of the smoke gas, realized the smoke gas safety smooth run reliably for a long period of time. The group company organized experts to evaluate the results and concluded that the project was in line with the industrial policies of the country and the group company and had significant economic and social benefits. The key technologies of the project have independent intellectual property rights, and 3 national invention patents and 6 utility model patents have been authorized. The six innovation points, such as "new structure of steam cooling of gas turbine disc" and "high efficiency large vortex case exhaust shell", have all reached the international leading level.

From "a single flower" to "a hundred flowers blooming"

In addition to gas turbine, Bohai equipment petrochemical equipment company also has a rich product family lineage. The first reheating furnace elbow, the first reheating furnace hanger and the first slide valve in China's petroleum industry were developed and manufactured by the company. The company anchored the international advanced level and market demand, the research and development of gas turbine has reached the international advanced level, the special valve has reached the domestic advanced level, last year can replace the imported double gate valve for chemical industry has been put into industrial application.

Now, in terms of energy recovery, Bohai Equipment and Petrochemical Equipment Company is carrying out energy recovery in the low temperature section, chemical gas turbine and key parts of the gas turbine life analysis and other technology research and development. In terms of special valves, the remanufacturing of complete sets of valves for chemical plant, new large diameter disc valves and related key parts are studied.

The continuous innovation and surpassing of technology has brought more new opportunities for the development of Bohai Equipment and petrochemical Equipment Company. Despite the impact of international oil price fluctuations and refining overcapacity in recent years, Bohai Equipment petrochemical Equipment Company has maintained profitability for 11 consecutive years.

"Our goal now is to build a century-old equipment manufacturing enterprise. “Facing the future, Zhang Yong is full of confidence.