Features and Installation:
1 The foam tank has a stable mixing ratio and high reliability, and can provide high-quality foam mixture.
2. The pressure drop of the foam tank is the smallest, and the sprayed foam fire extinguishing agent has high energy and strong penetration ability. Can quickly extinguish the fire.
3. Save foam liquid and reduce fire extinguishing costs. Because the capsule of the foam tank separates the foam liquid from water, the foam liquid is not used up at one time and can be used next time, and the mixing accuracy is stable and reliable.
4. Wide application range, no matter high, medium or low expansion foam fire extinguishing agent can be used. The foam proportional mixing device of the automatic foam fire extinguishing system can use both foam sprinklers and sprinklers.
The surface of the concrete foundation should be treated before the fire foam tank is installed
a. Shovel the place where the shim is placed;
b. Dimpled surface is chiseled except for the place where the shim is placed. It is advisable to have 3~5 pits with a depth of not less than 10mm in an area of 100mm×100mm.
Before the equipment is hoisted, the oil, dirt and other dirt on the equipment should be removed. When hoisting the equipment, it should be kept stable, and the anchor bolts should be tightened after it is in place.
When the equipment is leveled and aligned, it should be adjusted with pad iron or other special adjustment parts; it is not allowed to adjust by tightening or loosening the anchor bolts.
When the foam liquid tank is installed, it should be firmly fixed to the foundation, and the piping and accessories should not be disassembled and damaged.
Foam mixer installation
The marking direction of the foam proportional mixer (device) is consistent with the direction of liquid flow.
The installation of the connection between the foam proportional mixer (device) and the pipeline should be tight
Working principle:
Knowing a certain amount of knowledge when using the foam tank can well know the problems that will occur in the use of the foam tank, and save our efficiency.
When the pressure water of the fire pump enters the proportional mixer along the water supply pipe, a small part of the pressure flows into the foam liquid storage tank through the water inlet pipe, and the foam in the tank (or in the diaphragm) is hydraulically discharged, and the foam liquid passes through the outlet
The pipeline enters the pressure proportional mixer, and in the mixer, it forms a mixed liquid with water in a specified ratio, flows out of the mixer, and then is sent to the foam generating equipment through the mixed liquid pipe, and the foam is sprayed to extinguish the fire. The device is set
It is set to release the pressure automatically when the water pressure exceeds 1.26MPa to keep the device safe.
When extinguishing the fire, the pipe tooth interface at both ends of the pipeline proportional mixer is connected to the fire hose and connected to the pressure water source. When water with a pressure of not less than 0.6MPa flows through the nozzle of the proportional mixer at a very high speed
At this time, due to the diffusion effect of the lateral movement of the jet particles, a vacuum (negative pressure) is formed in the chamber of the proportional mixer, so the foam liquid in the foam liquid storage tank enters the mixer through the suction pipe under the action of atmospheric pressure.
Mix with pressure water to finally reach a certain proportion of mixed liquid. When the mixture with a certain pressure flows to the spray gun, a certain amount of air will be sucked in due to the performance of the spray gun. Make the foam mixture foam. so as to achieve the effect of foam on fire extinguishing.
