Water supply detection device and method of fixed water fire extinguishing systems of nuclear power station

Abstract

The invention discloses a water supply detection device and method of fixed water fire extinguishing systems of a nuclear power station. The device comprises a water supply flow regulation and detection device and at least one water supply pressure detection device, wherein the water supply flow regulation and detection device is matched with a regular test connector on a water supply pipe network communicating with the fixed water fire extinguishing systems; the water supply pressure detection devices are each arranged within a preset range of a control valve at a water inlet of each fixed water fire extinguishing system. The device judges whether the water supply pressure of the fixed water fire extinguishing system to be detected reaches the corresponding fire protection design water supply pressure or not when the water supply flow of the fixed water extinguishing system to be detected and the fire protection design water supply flow are regulated to be consistent, and then judges whether water supply of the fixed water fire extinguishing system is normal or not and whether the working stability of the fixed water fire extinguishing system is reliable or not; the device is not bounded by compact space of a plant and can adapt to more environments. When the detection device detects the water supply pressure, the influence of head loss of the detection device can be avoided, and the accuracy of water supply pressure detection results is enhanced. Moreover, the workload of detection personnel can be reduced, and the working efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of fire safety, in particular to a water supply detection device and method for a fixed water fire extinguishing system of a nuclear power plant. Background technique [0002] Nuclear power plants are generally composed of nuclear islands (mainly nuclear steam supply systems), conventional islands (mainly steam turbine generator sets), and power plant supporting facilities. The number of workshops required is large, and the space structure of various workshops is compact. . As a fire-fighting facility that can effectively control fires, fixed water fire-extinguishing systems are widely used in nuclear power plants. Since the fire safety requirements of nuclear power plants are higher than those of general buildings, when designing fixed water fire-extinguishing systems in nuclear power plant buildings , often according to the requirements of the Chinese national standard GB50261-2005 "Code for Construction ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a water supply detection device and method for a fixed water fire extinguishing system of a nuclear power plant, to solve the problem that the detection car in the prior art is limited by the use of space, there is a loss of water head during the detection process, the detection result of the water supply pressure is inaccurate, and there is a lack of control over the water supply. Real-time monitoring of pressure, and the detection workload is heavy, consuming a lot of human resources and other issues

Images