The current norms of our country, "Fire Code for Design of High-rise Civil Building" (GBJ50045-95) (hereinafter referred to as "high regulation") on the pressurized facilities (including the regulator pump) has the following provisions: "7.4.8.1 booster pump water, The fire hydrant water supply system should not exceed 5L / s, automatic sprinkler system should not exceed 1L / s. "This provision is a precondition, one of the conditions is no fire water supply system water tank; the second condition is the indoor fire A small amount of water supply system leaks mainly in the pump seal. The provisions of the provisions do not mean that in any case, any condition, at any time regulator pumps are determined by this flow. "High regulation" refers to the booster pump, booster pump refers to the booster, but also refers to the regulator with a constant pressure pump, the standard provisions are not distinguished, and in fact booster pump and pump in action and Functionally different, the flow rate is not the same. Booster pump for the nozzle and fire hydrant has been out of the flow of fire water pressure is not enough, need to increase the pressure to meet the fire water pressure requirements. At that time, the booster pump flow should ensure that a nozzle or a fire hydrant outflow, that is not less than 1L / s or 5L / s. However, once the booster pump is started, the fire main pump is also followed by the start, the role of booster pump does not seem very urgent and necessary.
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