核电站水压试验的加热系统及其加热方法
By arranging electric heating devices on the outer surface of the steam generator tube sheet and combining them with water circulation heating, the problem of low heating rate on the secondary side of the steam generator was solved, achieving efficient water pressure testing and equipment heating, reducing the risk of test failure, and improving the operating efficiency and economic benefits of the nuclear power plant.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA GENERAL NUCLEAR POWER OPERATION
- Filing Date
- 2022-12-01
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the heating rate of the secondary side of the steam generator is low, which leads to low efficiency of hydrostatic testing in nuclear power plants and the risk of test failure. In particular, when the water circulation system cannot be used for heating during the hydrostatic test, the metal temperature may not meet the requirements, which may lead to test failure.
The heating end of the electric heating device is arranged on the outer surface of the steam generator tube sheet, and the tube sheet is directly heated through heat conduction. Combined with the water circulation heating device, the secondary side of the steam generator is heated. The electric heating device can heat at any time and is not affected by the water filling pressure rise and fall inside the water pressure test equipment.
It improves the heating efficiency of the secondary side metal of the steam generator and the efficiency of the hydrostatic test, reduces the probability of test failure, shortens the equipment maintenance period, improves power generation efficiency and reduces labor costs.
Smart Images
Figure CN116146963B_ABST