Abstract:
The technology improvement for the reactor pressure vessel on Ling’ao Phase II Nuclear Power Station is given. This paper presents the description of the integrated core shell, integral reactor pressure vessel top cover, the control of irradiation sensitivity element content, co resident content reduction, the improvement of radial support blocks material and the increase the quantity of irradiation surveillance program capsules. The advantage of these improvement and impacts on equipment performance, construction, operation and maintenance of Ling’ao Phase II Nuclear Power Station is analyzed.