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Examination of comprehensive ability of first-class fire engineers in 2020: fire pump starting device and power device

点击量: Release time: January 9, 2020 13:14:56 Source: Global Online School Traffic:

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    [Abstract] 2020 first-level fire engineer exam preparation has begun, Global Network School has organized the "2020 Comprehensive Test Capability of First-rate Fire Engineers" for you. For more test preparation materials, simulated test questions, and real questions over the years, please continue to pay attention to Global Online School One. Grade Fire Engineer Exam Channel!

    Related Recommendations: Summary of Lecture Notes on Comprehensive Capabilities of First Class Fire Engineers in 2020

    Fire water pump starting device and power unit

    Starting device

    ① The fire pump should be able to start and stop manually and start automatically, and it should be ensured that the automatic start time from receiving the pump start signal to the normal operation of the pump is not more than 2 minutes. Fire pumps should not be equipped with a control function to automatically stop the pumps. Stopping the pumps should be determined by staff with management authority based on the fire fighting situation.

    ② The fire pump should be automatically started directly by switching signals such as the pressure switch set on the fire pump outlet pipe, the flow switch on the fire pipe of the high-level fire tank or the pressure switch of the alarm valve.

    ③ The fire hydrant button should not be used as a switch to directly start the fire pump, but it can be used as a switch to issue an alarm signal or a quick opening and closing device for starting a dry fire hydrant system.

    ④ The stabilizing pump should be controlled by a pressure switch or pressure transmitter automatically set on the fire-fighting water supply pipe network or on the pressure water tank.

    powerplant

    The automatic switching time of the dual power supply of the fire pump should not be greater than 2s, and the switching time of one power supply and the power of the internal combustion engine should not be greater than 15 s.

    Pump control cabinet setup requirements

    ① The fire water pump control cabinet should keep the fire water pump in the automatic pump starting state in normal times.

    ② When the automatic water fire extinguishing system is an open system, and it is really difficult to set up the automatic start, after the demonstration, the fire pump can be set to the manual start state, and 24 hours should be ensured to be on duty.

    ③ When the fire pump control cabinet is set in a dedicated fire pump control room, its protection level should not be lower than IP30; when it is set in the same space as the fire pump, its protection level should not be lower than IP55.

    ④ Fire pump control cabinet should take measures to prevent flooding. In high temperature and humid environment, the fire water pump control cabinet should be equipped with automatic moisture and dehumidification devices.

    ⑤ The fire pump control cabinet should be equipped with a mechanical emergency pump start function, and it should be ensured that when the control circuit in the control cabinet fails, a person with management authority can start the fire pump in an emergency. When the machine starts in an emergency, ensure that the fire pump works normally within 5 minutes after the alarm.

    ⑥ The obvious part of the front panel of the fire pump control cabinet should be provided with a device to open the cabinet door in an emergency.

    ⑦ The fire pump control cabinet should have output terminals that show the working status and fault status of the fire pump and input terminals that remotely control the start of the fire pump.

    The editor reminds you to avoid missed 2020 exam registration, payment, eligibility review, etc., you can book SMS reminders for free

    ”页面进行下载学习。 Global Network Alumni Tips: The above is the "2020 Comprehensive Test Capability of First-Class Fire Engineers" organized by the Global Network School's First-Class Fire Engineer Channel. For more simulated test questions, real questions, high-frequency test sites, and test preparation strategies, please click " Free " below. Download "page for download learning.

    share to: Edit: Sun Qing

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