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Examination of comprehensive ability of first-class fire engineers in 2020: fire pump installation / commissioning / acceptance

点击量: Release time: January 9, 2020 13:17:16 Source: Global School

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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

    Water pump installation

    Installation of split water pump. The water pump should be installed before the motor. Make the water pump shaft center line and the motor shaft center line on the same horizontal line.

    Pump commissioning

    ① When starting the fire pump automatically or manually, the fire pump should be put into normal operation within 55S, and there should be no bad noise and vibration.

    ② When starting the fire pump with the standby power switching mode or the standby pump switching, the fire pump should be put into normal operation within 1min or 2min, respectively.

    ③ On-site performance test shall be performed after the fire water pump is installed, and it shall meet the requirements for the design flow and pressure of fire water supply.

    ④ The pressure of the fire pump at zero flow rate shall not exceed 140% of the design working pressure; when the output flow is 150% of the design working flow, its outlet pressure shall not be lower than 65% of the design working pressure.

    Pump acceptance

    ① The fire pump should be running smoothly without any bad noise and vibration.

    ② The control valves on the suction pipe and the outlet pipe should be locked in the normally open position and clearly marked.

    ③ Fire pumps should use self-irrigating water diversion, and ensure that all effective water storage is effectively used.

    ④ The signal functions of each end water test device, water test valve and test fire hydrant, water flow indicator, pressure switch, low pressure pressure switch, high-level fire water tank flow switch in the system should be opened in accordance with design requirements.

    ⑤Open the water test valve on the fire pump's outlet pipe. When the main pump is used to start the fire pump, the fire pump should be started normally; when the main power is turned off, the main and backup power supplies should be able to switch normally; Normal, and feedback status signal to the fire control room.

    ⑥ When the fire pump is stopped, the pressure after the water hammer eliminates the facility should not exceed 1.4 times the design working pressure of the pump outlet.

    ⑦ The automatic control of the fire pump should be placed in the automatic starting gear.

    ⑧ Use fixed and mobile flowmeters and pressure gauges to test the performance of fire pumps, which should meet the design requirements.

    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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