The function of the flame arrester The working principle of the flame arrester
In order to prevent fires and reduce fire hazards, it is necessary to familiarize yourself with some basic knowledge of fire prevention and fire fighting. Flame arrestors are one of them. So how much do you know about the flame arrester ? Do you know what role the flame arrester has in addition to the above point? Today Xiao Bian will lead you together to learn about the role and principle of the flame arrester , so as to help you further understand the flame arrester, come and learn it! 
[The role of flame arrester]
First, it has a qualified explosion-explosive performance, and it can play a good role in preventing fire in each of the 13 consecutive explosion resistance performance tests.
Second, it has acceptable burn resistance and no tempering occurs during the 1 hour burn-in test.
Third, the shell pressure test passed. It is not only reasonable in structure, but also lightweight, which facilitates the work of inspection and installation. In addition, the core of the flame arrester is made of stainless steel and has superior corrosion resistance. At the same time, it is also easy to clean.
[The working principle of flame arrester]
There are two main views: one is based on heat transfer; the other is based on the wall effect.
One of the necessary conditions for burning is to reach a certain temperature, the ignition point. Below the ignition point, combustion will stop. According to this principle, as long as the temperature of the burning material falls below its ignition point, the spread of the flame can be stopped. When the flame passes through the many tiny channels of the flame arrester, it will turn into several small flames. When designing the flame arrester inside the flame arrester, the contact area between the small flame and the channel wall is enlarged as much as possible to enhance the heat transfer so that the flame temperature falls below the ignition point, thereby preventing the flame from spreading. 
Combustion and explosion are not direct reactions between molecules, but are stimulated by external energy. The molecular bonds are destroyed, and activated molecules are generated. The activated molecules are split into short lived but very lively free radicals. The free radicals collide with other molecules. Generate new products, but also generate new free radicals and continue to react with other molecules. When combustible gas passes through the narrow channel of the fire blocking element, the probability of collision of free radicals with the channel wall increases, and free radicals participating in the reaction decrease. When the channel of the flame arrester is narrow to a certain extent, the collision of the free radical with the channel wall is dominant. Since the radical quantity is drastically reduced, the reaction cannot continue, that is, the combustion reaction cannot continue to propagate through the flame arrester.
As the size of the flame arrester channel decreases, the probability of collision between free radicals and reactive molecules decreases, while the probability of collision of free radicals with the channel walls increases, which promotes a reduction in free radical reactions. When the channel size is reduced to a certain value, this wall effect creates a condition in which the flame cannot continue to propagate and the flame is prevented. Therefore wall effect is the main mechanism for preventing flame. 
Xiao Bian concludes: The above introduced the role of flame arresters and hoped to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
Siphon principle principle of refrigeration
Fuonce Lighting , https://www.fuonce.com