Utility pipeline network
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Do fire water networks and circulating water networks have to be underground? Do fire pump systems have to be running 24 hours a day? Do water pipes need to be insulated? Do factory air compressors and instrument air compressors have to run 24 hours a day? What is the difference between plant air and instrument air? Is it in circulation when the water supply is off and not in use? Where’s the fire water?
【Must fire water pipelines and circulation water pipelines be installed underground?】Not necessarily; it depends on the local climate conditions.
Is there a short circuit between the circulating water supply and return water, that is, a path that does not pass through the equipment?
There are corresponding standards for reference!
There are no standards for non-professionals; it’s purely based on experience. Fire hoses can be installed either underground or above ground. It is mainly for freezing protection. Some have pipelines installed on the ground, with quick connectors underneath. 2 The fire-fighting water must be available 24 hours a day, or more precisely, at any time when it is needed. 3 The water supply pipes should follow the same principle as the fire hoses. It generally goes underground; the purpose of insulation on the surface is unnecessary to explain. 4 Instrument air is supplied as long as the equipment is running; obviously, it does run. The air used in the factory usually comes from the same source as the instrument air. 5 The instrument air required to be oil-free, water-free, free of mechanical impurities, and have a certain pressure. Factory air means that the requirements for compressed air are not as high as those for instrument air. 6: No circulation is involved; there are electric pumps, diesel pumps, and pressure stabilization pumps. Under normal conditions, the pressure stabilization pump operates, and when the pressure drops, the larger pumps start in sequence
The fire water isn’t circulating, but the pump keeps running? With the pump running, the pressure in the pipeline system keeps rising; eventually, the pump will overload, reverse its rotation, and burn out the motor
Firstly, it is actually possible to stop its operation through settings; it usually monitors the pressure at the very end, and it will stop when that pressure reaches the set value. But unless the system is extremely small, large-scale systems will incur some losses. Additionally, multi-functional valves and minimum return valves are installed. As for the increasing pressure you mentioned? ? ? Centrifugal pumps and reciprocating pumps are different; you still need to take a look at that.