Automatic fire extinguisher for 3 seconds

Mr. Phuong (right) with his son Phan Trong Nghia on the fire extinguisher prepared to install at the 220kV Hue substation - Photo: Dang Nam

From the thought of "how to sleep under gas tanks without fear of fire or explosion", after many times tinkering with the final test of the father and son Phan Dinh Phuong and Phan Trong Nghia (587/1 Hoang Dieu, Da Nang) successfully invented An Sinh multi-purpose automatic fire extinguisher (An Sinh fire fighting machine).

In just 3 seconds, this unique machine can immediately extinguish the fire, far beyond the time specified by the world.

Mr. Phuong recalled: in early 1999, he tasked his first son Phan Trong Nghia to "lie" in My Khe petroleum depot (Son Tra district, Da Nang city) to monitor the recovery machine. Gasoline (an initiative he is applying here - NV).

After many days of 'lying down' with gas-filled jars, the fear of a fire disaster haunts Nghia, eventually meaning to say everything to his father.

Being a passionate inventor, listening to his son's presentation, after several weeks of reading books, he finally devised a method of automatic firefighting by the pressure of CO2 to spray water to extinguish the fire.

After a few times of persuading and performing, finally the CO2 firefighting method of Phuong's father and son was also granted by the Police Department of Da Nang City's Police Department, Danang Science and Technology Association as well as the Police Department. Fire protection (Ministry of Public Security) agreed to apply at some establishments.

However, this method only stopped at the point of spraying into a hose but not yet a very thin mist. According to Mr. Phuong, spraying into a large-scale thin mist will help shorten the fire-fighting time due to the lack of oxygen. This is very necessary in fire fighting at power substations as well as in gas storage areas, petrol .

So continue to study and your father and son succeed. In early 2005, after nearly five years of pursuit, An Sinh's fire extinguisher was finally perfected.

According to Mr. Phuong, all of the on-site fire extinguishing systems used in transformer stations, gas stations or petroleum depots are operated in the form of using electric motor pumps, and there is a safer place. Put more pumps with an explosive machine.

The time it takes for this entire system to start firefighting is within 180 seconds (3 minutes), according to international standards. But for substations or gas depots, gasoline is 3 minutes long enough for a big fire to be hard to save.

His solution was also completely automated. Accordingly, when the fire detectors receive fire signals immediately will activate (break). Under the pressure of large CO2 tanks, only 1-3 seconds of the entire water system or foam, powder, CO2 . contained inside the pipes will automatically spray strongly into thin mist to grab points burn, and isolate the fire point to the outside. So in a moment the flame will be extinguished due to lack of oxygen.

An Sinh fire fighting machine has been approved by Vietnam Electricity Corporation to be installed at 220kV Hue substation. The machine was also approved by the Police Department of Fire Protection (Ministry of Public Security), the State Council of Science and Technology approved for the protection of 220-500kV transformers and the National Office of Intellectual Property of Vietnam for exclusive licensing. invention in 2002.

In particular, this device has been rated 5A by the WIPO World Intellectual Property Organization. And on September 13, 2005, the United States Patent was ranked 11A and granted a patent.

DANG NAM