How to Self-Rescue Three Fire Extinguishing Methods You Must Know

January 25, 2024

Serious fires threaten the safety of people's lives. In addition to strengthening our awareness of prevention in daily life, we must also strengthen our self-rescue capability in the event of a fire. The following Xiaobian introduces three methods of fire fighting.

Method one: cooling method

The principle of this fire extinguishing method is to directly inject the extinguishing agent on the burning object so as to lower the burning temperature below the burning point and stop the burning. Or fire extinguishing agent sprayed on the material near the fire, so that it does not form a new fire point due to the flame heat radiation. Cooling fire extinguishing method is a main method of fire extinguishing. Commonly used water and carbon dioxide as fire extinguishing agent cool cooling and extinguishing. The extinguishing agent does not participate in the chemical reaction during the extinguishing process. This method is a physical fire extinguishing method.

Method Two: Isolation

The isolated fire extinguishing method separates or removes the burning material from the surrounding unburned combustible materials, interrupts the supply of combustible materials, and stops the combustion due to the lack of flammable materials. The specific methods are:

1. Move flammable, flammable, explosive and combustible materials near the fire source;

2. Close the valves of combustible gases and liquid pipes to reduce and prevent combustible substances from entering the combustion zone;

3, trying to block the flammable flammable, combustible liquid;

4. Dismantle flammable buildings adjacent to the fire source to form a space zone to prevent the spread of fire.

Method 3: Asphyxiation

The suffocation fire extinguishing method is a fire extinguishing method that prevents the air from flowing into the combustion zone or the incombustible zone or diluting the air with a non-combustible substance so that the combustion cannot be extinguished by insufficient oxygen. The specific method is:

1. Cover combustion products with sand, cement, wet sacks, wet cotton quilts, and other nonflammable or flame-retardant materials;

2, spraying spray water, dry powder, foam and other fire extinguishing agent covering the combustion;

3. Infuse containers and equipment that cause fire with inert gases such as steam, nitrogen, or carbon dioxide;

4, closed fire construction, equipment and holes;

5. Inject non-combustible gas or non-combustible liquids (such as carbon dioxide, nitrogen, carbon tetrachloride, etc.) into the burning area or into the burning material.

Position measurement
Position sensors are used in a wide range of automation and measurement applications. A key step in selecting a suitable position sensor is understanding the requirements of sensor size, resolution, repeatability, accuracy, mounting constraints and environmental ruggedness. This paper discusses the available position sensing technologies and concludes with a key feature comparison.

Linear position sensors measure the distance between an object and a point of reference, as well as changes in position. They do this by converting displacement into an electrical output. A wide variety of measurement principles can be used to let you make precise and reliable measurements for a broad range of applications. Linear position sensors and measurement systems are used in industrial applications as well as in scientific laboratories.

Within their specified measurement range, LVDT sensors provide excellent linearity. They are capable of detecting very small changes in position and have virtually unlimited resolution. As a result, LVDT sensors are also suitable for measuring high accelerations and high measurement cycles.

Linear inductive position sensors are durable, long-lived, and especially stable under temperature fluctuations. That means they are ideal for measuring linear travel in almost any industrial setting â€“ especially with hydraulic or pneumatic applications.

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