045203.5NRL

045203.5NRL Application Field and Working Principle

The 045203.5NRL (Nuclear Reactor Limiter) is an important safety device for preventing over-pressurization of primary circuits of pressurized water nuclear reactors. It is installed on a permanently connected loop and has been widely used in the power industry worldwide.

The 045203.5NRL is composed of a pressure sensing element, a hydraulic accumulator, an electrical relay, a pressure switch, a differential pressure control valve, and several other components. It protects the safety of nuclear reactors by measuring the pressure in the accumulator. If the pressure in the accumulator is higher than the predetermined limit value, the pressure switch will start and the accumulator will be filled with a certain amount of cooling liquid, thus preventing the pressure in the reactor from increasing further.

The 045203.5NRL applies differential pressure control technology, which is based on the principle of atmospheric pressure difference. It can sense the difference between the two pressure points of water in the accumulator, and if the difference exceeds the critical value, the pressure switch will be activated and then the cooling liquid will be filled into the accumulator for relief purposes. This technology helps to protect the nuclear reactor from over-pressurization accidents.

In addition, the 045203.5NRL has a built-in adjustable pressure limiter, which can be adjusted accordingly according to the user\'s requirements and the pressure conditions inside the reactor. The adjustable pressure limiter helps to ensure that the pressure in the reactor does not exceed the maximum limit of the safe operation. In this way, the 045203.5NRL can effectively protect the safety of the nuclear reactor.

In summary, 045203.5NRL is an essential safety device that is widely used in pressurized water nuclear reactors to regulate and control pressure in order to avoid over-pressurization accidents. It utilizes the differential pressure control technology and a built-in pressure limiter to protect the safety of the nuclear reactor and is highly recommended by the power industry.