FRP panel tank assembly before and after what to pay attention to
Glass fiber reinforced plastic panel box in the installation before it is necessary to compare the base drawing device, in the installation to be placed smoothly, glass fiber reinforced plastic panel box bottom surface to as far as possible and touch the surface flat, device lifting process, it is necessary to hang on the water tank lug.
Glass fiber reinforced plastic panel box in the installation to prevent welding and gas cutting and touch with open fire, in the connection with the waterway, the overflow hole is prohibited from setting valves, not connected with the drainage pipe, should choose direct discharge.
After the glass fiber reinforced plastic panel tank is installed, the water is discharged and the performance of the valve is adjusted to check whether there is leakage in the water tank shell and the inlet and outlet holes. The inside of the tank should be cleaned before the first use. After the cleaning, the sewage valve is opened and the dirty water is discharged, and the valve is cleaned once. FRP panel tanks should be cleaned at least twice a year, and each cleaning should be cleaned at least twice.
The three most common problems in FRP panel tank design?
The pressurized water pump outlet pipe as the outlet pipe of the FRP panel tank
According to the fire protection technical standards, the static water pressure of the hydrant at the most reverse point should not be less than 0.07Mpa, and the working pressure of the sprinkler at the most reverse point should not be less than 0.05Mpa. In practice programs, FRP panel tanks usually require a booster pump to satisfy pressure requirements. Some program personnel will pressurized water pump outlet pipe as the glass fiber reinforced plastic panel tank outlet pipe, this is very wrong practice. This is due, set the booster pump’s first intention is in front of the fire early fire pump advice, satisfied with the hydrant and take the initiative to revive sprinkler system water demand, the water yield of hydrant water supply system should not be greater than 5 l/s, to take the initiative to revive sprinkler system should not be greater than 1 l/s, significantly less than the standard requirements of indoor fire water consumption greatly, Unable to satisfy the demand for fire water. Therefore, the pressurized water pump set on the roof should set a bypass pipe on the side of the pressurized water pump outlet pipe, and the water flow should not be less than the water consumption required to compensate for the early fire.
Connect the outlet pipe of the outlet pipe of the FRP panel tank through the pipe behind the alarm valve
Some scheme personnel directly connect the outlet pipe of the FRP panel tank to the top water supply pipe of the active spray system (after the alarm valve), which seems to meet the demand of pressure and flow and save the pipe, but it is a mistake. This is due to the glass fiber reinforced plastic panel tank outlet pipe from pipeline access after the alarm valve, the water in the tank will not through alarm valve 2 directly into the system network, make the nozzle, the alarm valve pipe water pressure after long time insist on a high, delayed the pressure switch action, hydraulic alarm not alarm in time, the pump has not recommended, The outlet pipe of FRP panel tank should be connected with the pipe before the inlet of alarm valve.
Fiberglass panel tanks are installed in the highest part of the building
Some parts of the steel structure roof of large space buildings, such as the theater stage, project personnel dispatch FRP panel tank installed in the building bearing only relatively good base layer of reinforced concrete structures, but lower than the firm set point nozzle height, booster pump head, marching to satisfied the highest nozzle pressure requirements. The scheme personnel’s opinion is that the standard specification of FRP panel tank can be equipped with a pressurized water pump to satisfy the pressure of the hydrant and nozzle at the most reverse point. This is the original of the glass fiber reinforced plastic panel tank meaning of the fault understanding, so that the glass fiber reinforced plastic panel tank became a base pool, can not rely on gravity to the fire system pipeline water supply.
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