The main engine equipment of the "Hualong No. 1" nuclear power conventional island steam turbine was developed

The two low-pressure rotors of Fuqing Unit 5 weighing 280 tons each were completed and put into operation on the 19th of Dongfang Electric Group Dongfang Steam Turbine Co.
, Ltd.
(hereinafter referred to as Dongqi), marking the completion of the development of the first conventional island steam turbine host equipment of China's independent intellectual property rights nuclear power project "Hualong No.
1
".

"Hualong No.
1" is a third-generation nuclear power technology
with independent intellectual property rights independently developed on the basis of more than 30 years of experience in nuclear power research, design, manufacturing, construction and operation in China.
Its world's first reactor demonstration project, Fujian Fuqing Nuclear Power Unit 5 and 6, is of great significance
.
To carry out global competition, its product performance, cost, construction cycle and other important indicators must stand in the forefront of the world, which is a major challenge and opportunity
for China's major equipment manufacturing.

Dongqi, which is responsible for the research and development of the main engine of Fuqing Nuclear Power conventional island steam turbine, needs to break through many world-class R&D problems
such as the development of the longest grade blade in the industry, the design and manufacture of the world's heaviest and largest welded nuclear power rotor, and the lateral support of ultra-heavy low-pressure cylinders.
With the support of the state, provinces and cities, Dongqi has faced difficulties, relied on major scientific research projects, and cooperated with scientific research institutes, and successively completed a number of "firsts" and "largest":

Successfully independently developed the longest grade 1828mm rotor final stage blade in China, and on this basis, the world's largest size and weight nuclear power turbine rotor and the world's largest nuclear power turbine cylinder
under production were manufactured.
All indicators are better than the test requirements
of nuclear power technology companies.

The low-pressure rotor of the "Hualong No.
1" steam turbine is the world's largest half-speed nuclear power turbine rotor, which is connected by welding structure
.
Dongqi has independently built the "large-scale nuclear steam turbine welding rotor test and verification system", which provides a standardized technical platform for development and test verification, solves a number of technical problems, and establishes a complete set of technical systems
.

The 350-ton high-speed dynamic balance test station independently developed by Dongqi Motor is the world's largest dynamic balance test base, which can carry the world's largest rotor rotation diameter and the largest rotor mass, and promote the successful development of the "Hualong No.
1" nuclear power low-pressure rotor in 2017
.

It is reported that at present, the nuclear island and conventional island of the "Hualong No.
1" Fuqing Nuclear Power Unit 5 have begun equipment installation, and it is expected to complete the grid-connected power generation
in the first half of 2020.