Nuclear grade electric bellows angle globe valve
Nuclear grade electric bellows angle globe valve
2025-04-12
The first level electric bellows angle globe valve is a nuclear safety first level valve used for safety injection systems (RIS systems) and containment heat export systems (EHR systems). It is one of the key equipment for large advanced pressurized water reactor nuclear power units. The successful development of this valve can fully cover this type of valve in nuclear power plants. The nuclear first level electric corrugated tube angle globe valve belongs to the National Science and Technology Major Project (later approved and subsidized), project number: 2020ZX06004004, start and end dates: January 2016 to October 2019, and has successfully passed the national major project achievement acceptance. In 2018, through the appraisal of industry scientific and technological achievements, the appraisal committee believed that the prototype of the nuclear safety level one electric corrugated tube angle check valve product developed was successful, with main technical parameters and performance indicators reaching the advanced level of international similar products, and can be promoted and applied in nuclear power plants. The "Nuclear Level 1 Electric Bellows Angle Stop Valve" was recognized as the first major technical equipment in the fourth batch of energy fields in 2024.
Technical Parameters
Product Details
Scope of application:
The first level electric bellows angle globe valve is applied in the RIS system of the third generation nuclear power plant reactor of Hualong One. The normal operation of the valve can effectively ensure that the system performs the expected safety functions. The valve adopts a valve disc component structure with stable flow, regulation, check and shut-off functions, integrating the regulating valve, check valve and shut-off valve into one, reducing the installation of pipeline equipment, improving the system safety factor, and saving the installation space inside the nuclear island.
Application status of achievements:
It has been successfully applied to the third generation pressurized water reactor nuclear power unit Huizhou Taipingling project, which is suitable for subsequent new nuclear power projects and in-service power plants. It can effectively reduce the construction and operation costs of nuclear power units, and has the benefits of mass industrial application and market economy.
The first level electric bellows angle globe valve is one of the key equipment for large advanced pressurized water reactor nuclear power units. Mastering the design and manufacturing technology of this type of valve, achieving localization, is of great significance for breaking the monopoly supply of foreign enterprises and reducing the impact of the international political and economic environment on the development of China's nuclear power industry. Dalian Dagao has signed a supply contract for LOT190Ca for Units 1 and 2 of the San'ao Project with China General Nuclear Power Engineering Co., Ltd. The contract is currently being executed and will be promoted to other nuclear power units and restricted industries in the future.
Intellectual property situation:
The intellectual property achievements independently developed by the nuclear first level electric corrugated tube angle globe valve project have been searched and analyzed for patents at home and abroad, and no obstacle patents have been found. The intellectual property achievements of the project are independent and controllable, and one utility model patent application (a nuclear first level large-diameter electric corrugated tube angle globe check valve) has been completed, which has been authorized.