First, use

Foam fire extinguishing is safe, reliable, economical and practical, and has high fire-extinguishing efficiency. As a kind of clean "green fire-fighting product", the foaming agent is the first substitute of the UNEP to replace the halogenated fire extinguishing agent. The pressure foam proportional mixing device is a major equipment for high, medium and low multiple foam fire extinguishing systems. It can be installed in low and medium multiple tank fire extinguishing systems, low multiple foam sprinkler systems, low multiple foam gun fire extinguishing systems, and high multiple flooding foam fire extinguishing systems. It is widely used in fire extinguishing of petroleum, chemical, oil depot, oil tanker, ship, dock, underground parking lot, garage, garage, hangar, material warehouse, boiler room, petroleum liquefied gas station, tunnel and other places.

Second, the structural characteristics

1. The foam liquid storage tank is a pressure storage tank.

2. Diaphragm capsules are made of high-strength, high-elasticity, high-flexibility, acid-resistant composite rubber.

3. The foam liquid does not come into contact with water when the system is working, and the foam liquid can be reused after being used up once.

4. The mixing ratio is stable, accurate and reliable, and can provide high quality foam mixture.

5. The pressure drop is the smallest, and the sprayed foam has the largest energy and strong penetrating power.

6. High, medium and low multiple foam fire extinguishing systems can be used.

7. Easy to install and easy to automate.

8. Control mode: manual control or electric control.

Third, the working principle

When the system works, using the Venturi principle, the pressurized water enters the pressure proportional mixer and enters the storage tank from the inlet branch pipe. The squeeze capsule replaces the foam fire extinguishing agent (foam concentrate), and the foam fire extinguishing agent and water are designed according to the ratio ( 3% or 6%) mixed into a foam mixture, which is supplied to a fire extinguishing device such as a foam generator, a foam nozzle, a foam gun, etc.

Fourth, the implementation of standards

GB20031-2005 "General technical conditions for foam fire extinguishing systems and components"