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How many sets of voltage regulators are suitable?

Asked by: Eric Allen 220 views Hardware April 16, 2019

How many sets of voltage regulators are suitable?

2 Answers

  1. +3Votes  

    The constant pressure pump is a kind of fire pump. It is used for the pressure stability of the automatic sprinkler system and the fire hydrant water supply system, and plays an important role in the fire protection setting system. The fire-stabilized pump works in the nozzle and the fire hydrant has been out of the water, and the water pressure of the fire-fighting water is insufficient, and it is necessary to increase the water. The fire-stabilizing pump is a kind of fire pump, and the pressure for the automatic sprinkler system and the fire hydrant water supply system is stable. The role is self-evident.

     

    What are the setup requirements for a Zener pump?

     

    1. Flow Requirements

     

    1) The design flow of the regulated pump should not be less than the fire water supply system The normal leakage of the pipe network and the system automatically start the flow.

     

    2) The normal leakage of the fire water supply system pipe network should be determined according to the pipe material and interface form. When there is no pipe network leakage data, the pressure pump The design flow rate should be 1%~3% of the design flow of the fire water supply, and should not be less than 1L/s.

     

    3) The automatic starting flow rate of the alarm valve pressure switch used in the fire water supply system shall be determined according to the product.

     

    2. Pressure requirements

     

    1) The design pressure of the steady-state pump should meet the system’s automatic start-up and The pipe network is full of water requirements.

     

    2) The design pressure of the steady-state pump should be such that the pressure at the set point of the system automatic start-up pump pressure is greater than the system-set automatic start-up pump pressure value in the quasi-working state. And the added value is preferably 0.07 to 0.10 MPa.

     

    3) The design pressure of the steady-state pump should be maintained at the most unfavorable point of the system. The hydrostatic pressure of the water-extinguishing facility should be greater than 0.15 MPa when it is in the quasi-working state.

     

    3. The steady-state pump should be self-priming. When using natural water source, the suction port of the pump should take measures to prevent the blockage of debris.

    Jessica Johnson- April 16, 2019 |

  2. +1Votes  

    The even number of the best is   generally 4 sets

    Ward- April 17, 2019 |