Gu Jianfeng is doing a self-heating bag reaction experiment when it meets water, and the pictures in this article are all courtesy of Shanghai Chemical Fire Protection.
In the past few days, the fire and rescue detachment of Shanghai Chemical Industry Park has continued to carry out a large-scale rectification action for fire safety, focusing on hazardous chemical enterprises, hazardous waste enterprises, densely populated places and other places.
The damaged self-heating bag reacts violently when exposed to water
Considering that self-heating food has been very popular in recent years, especially during the current peak traffic period, not only may many travelers board the bus with "self-heating pots" during the Spring Festival, but also guests with self-heating food will also be encountered in the hotel. On February 5th, Gu Jianfeng, an inspector of Shanghai Customs Industrial Products and Raw Materials Testing Technology Center, brought beakers and self-heating food to the hotel as one of the representatives of the "technical school" firefighting volunteers in Shanghai Chemical Industry Park, and gave a "fire fighting experiment class" to the hotel staff.
The broken heating pack reacts violently when exposed to water.
Self-heating food processing is particularly convenient, just add water and enjoy a hot meal in no time. However, if the self-heating pack is broken, you must be careful. Gu Jianfeng used 3 beakers to do a set of experiments on the reaction of self-heating packets with water, and after one of the broken self-heating bags met water, the reaction was violent, and the water splashed out directly.
Gu Jianfeng explained that many self-heating packets contain quicklime, which reacts quickly when exposed to water, and if it splashes into the eyes, it is likely to cause visual damage. Therefore, if you find that the self-heating pack is damaged, try to abandon it.
Restore the moment of "flour deflagration".
The kitchen is one of the key areas where the hotel uses open flames, and Gu Jianfeng reminded to clean the fume pipes regularly, especially mentioning that "deflagration should occur when using flour". Gu Jianfeng did a "flour deflagration experiment" in the laboratory on the spot.
In order to create a confined space, he cut out a transparent cover from a plastic bucket; Then he used a small plastic bottle and cut a container for flour. Next, he connected a plastic straw with a pump to make a simple "blower".
The self-made equipment restores the moment of "flour deflagration".
When the experiment began, he lit the alcohol cotton and placed it in a transparent plastic cover with flour, while the alcohol cotton burned steadily. However, when he used a pump to "blow the air" and blow up the dry flour, a flash burst into the plastic cover, and "a fireball burst out".
Seeing the fireball with my own eyes was indeed shocking. Hotel staff say the "seeing is believing" experiment is impressive.
The staff of the fire and rescue detachment of Shanghai Chemical Industry Park said that in order to effectively improve the fire safety awareness and ability of the park personnel to resist fire accidents, the detachment will also give full play to the advantages of "outstanding professional ability" of fire volunteers, effectively strengthen the exchange of fire safety management experience between enterprises, and continue to do a good job in fire prevention and control fire publicity in winter and spring.
*: The Paper.