A test device for functional verification of steam generator accident discharge system

Abstract

The invention discloses a test device for function verification of a steam generator accident discharge system, which comprises a main feedwater pipeline, a main feedwater isolation valve, a steam generator, a main steam isolation valve, a main steam pipeline, a first discharge valve, a second Discharge valve, discharge tank, primary circuit helium pressure measurement device, secondary circuit feed water pressure measurement device, primary circuit humidity detection device, man-machine interface display through simulation modeling server, Labview data acquisition cabinet and steam generator accident discharge DCS cabinet , the system can realize the early verification of the actual function of the steam generator accident discharge system.

Description

technical field [0001] The invention belongs to the field of nuclear energy science and engineering, and relates to a test device for function verification of a steam generator accident discharge system. Background technique [0002] The steam generator accident discharge system is a special safety facility for high-temperature gas-cooled reactors. Since the pressure of the water and steam side (secondary side) of the steam generator is higher than the helium pressure of the primary circuit, when the heat exchange tube of the steam generator ruptures, The water and steam in the pipe leak to the primary circuit, and the water vapor flows into the reactor along with the helium, which will increase the reactivity, increase the pressure of the primary circuit and damage the reactor core. In order to ensure the safety of the reactor, it is necessary to reduce the amount of water and steam entering the primary circuit system of the reactor. The steam generator accident discharge s...

AI Technical Summary

Problems solved by technology

However, there are at least the following problems at present: since the accident discharge system of the steam generator is put into operation under the accident condition that the heat transfer tube of the steam generator breaks, it cannot be recovered through the extreme operating conditions of the emergency shutdown caused by the break of the heat transfer tube during operation. Actual verification of its functional reliability; at the same time, during the commissioning of the unit without fuel loading, the emergency shutdown protection system of the reactor cannot be put into operation, and the DCS platform does not have the test conditions to verify the design function of the steam generator accident discharge system, so it is difficult to expose and correct in advance Problems with Control Strategies

Images