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Half fixed foam extinguishing equipment
1.Product breif introduction:
Half fixed foam extinguishing device is a new mobile foam extinguishing equipment, also called mobile foam extinguishing equipment, its operation is simple, reliability quickly. Used to put out a, b, c class water-insoluble liquid fire.It is widely used in municipal residential areas, factories and mines enterprises, oil depot, chemical engineering department, heat treatment workshop, gas stations and other places, mainly made by the foam liquid storage tanks, spray gun,proportioning mixer, hose, and cart chassis, etc
2.Work principle:
Half fixed foam extinguishing device in extinguishing the in-line mixer at both ends of the tube tooth interface with fire hose connection, and connect the pressure water, when there is water that no less than 0.6 MPa pressure through the nozzle of the proportioning mixer at high speeds, due to the effect of the spread of the lateral movement of the fluid particle, proportioner indoor form vacuum (negative pressure), so the foam liquid storage tank inside the foam liquid under the action of atmospheric pressure through pipettes into the mixer, mix with pressure water, finally reaches a certain proportion of the mixture.When the mixture flow with certain pressure to the spray gun, because the performance of the spray gun will air suction to quantitative.Make foam mixture foam.So as to achieve the effect of the foam fire fighting.
3.Performance parameters:
Model | rated working pressure(Mpa) | Working pressure(Mpa) | mixing ratio | bubbling times | range(m) | 25% abosorb liquid time(s) | Spary time(Min) |
PY8/100 |
0.7 |
0.6-0.8 |
3%-4% Or 6%-7% |
≥4.5 |
≥15 |
≥120 | ≥25 |
PY8/200 | ≥50 or ≥25 | ||||||
PY8/300 | ≥75 or ≥37.5 | ||||||
PY8/400 | ≥100 or ≥50 | ||||||
PY8/500 | ≥125 or ≥62.5 |
Note: use foam liquid types: 1. The protein foam liquid fluorine protein foam liquid (2) using temperature range: 0 ℃ ~ 55 ℃
4.Usage method:
Device is operated generally should by two people;One connect jet nozzle belt and use the nozzle for fire extinguishing, another one is connect the hydrant hose and open fire hydrant valve to water supply.The operation steps are as follows:
1) Use fire hose connect the water supply and pressure water inlet of equipment;
2) Remove the spray gun and expand its fire hose;.
3) Let the hose of spray gun and equipment outlet connect;
4) Open the water supply;
5) Armed with foam spray gun to fire extinguishing;
5.Device maintenance
1) Refill extinguishing agent:device after use,the user must purchase the same type of foam liquid supplement refill;Can use plastic tube suction or use funnel from charging liquid mouth into when refill;Tighten the filling cap after complete fill to prevent equipment moves foam liquid spills.
2) Equipment should be kept in a place that cool, ventilated, convenient take and put.
3) This tank of device material use corrosion resistance of glass fiber reinforced plastic material manufacturing. It is strictly prohibited to use hard ware damage knock, bump to leakage
4) Stored for a long time not use this equipment, you should review annually foam liquid quality is bad or not. If discover metamorphism should be replaced on time;
5) This equipment after each use,should be carefully cleaned and dry hose, after airing,then wrap on the reel, (suggest user should bring spare fire hose to backup, in case of sudden fire happen).
6) In order to make the equipment for a long time in good state of fire prevention and foam liquid quality;Foam tank should be open to clean once every three years
7) When water supply is the hydraulic pump or fire fighting water tanker, the pressure of water supply should be no greater than1.0 MPa.When purchasing equipment configuration should be bear work pressure biger than 1.0 MPa since a spoon fire hose.