The continued high temperature in summer poses a greater threat to the safe storage of hazardous chemicals

We must strengthen safety protection and do a good job in heat prevention and cooling

Prevent fire and explosion accidents!

 

High risk of storing hazardous chemicals in hot weather

1. Temperature increase increases the volume pressure of hazardous chemicals

Thermal expansion and contraction are general physical phenomena of objects. If the internal pressure of a container increases and exceeds the limit that the container can withstand, it will cause the container to malfunction or even burst. If the container is open, the liquid in it will expand beyond its capacity and overflow, causing leakage, bubbling, dripping, and leaking. To prevent this from happening, in addition to taking heat prevention and cooling measures, it is also necessary to fill it according to the specified filling coefficient. As for gases, their expansion coefficient is larger, and gases are generally stored in steel cylinders. As the temperature rises, the pressure is too high, and the steel cylinders are in danger of explosion.

 

2. Temperature increase accelerates the evaporation rate of liquids

The higher the temperature, the faster the flammable liquid evaporates, the greater the vapor concentration on the liquid surface, the greater the possibility of forming an explosive mixed gas with the air, and the higher the risk of fire and explosion. The evaporation rate of different liquids varies depending on the temperature, boiling point, specific gravity, and pressure. The ease of evaporation of flammable liquids is expressed by the boiling point. The lower the boiling point, the more volatile the liquid. Some flammable liquids have a very low boiling point. Once the ambient temperature exceeds their boiling point, danger may easily occur.

 

3. Temperature increase accelerates oxidation decomposition and spontaneous combustion

Affected by environmental factors such as temperature and humidity, many hazardous chemicals are easily decomposed after being heated, releasing oxygen or even oxygen atoms, oxidizing other substances and releasing a large amount of heat. If the ventilation is poor, the heat will accumulate and not dissipate, causing the temperature to rise, which will accelerate the oxidation rate, generate more heat, and cause the temperature to continue to rise. When the temperature reaches the spontaneous combustion point of the substance, it will spontaneously ignite and catch fire.

 

Precautions for hazardous chemical vehicles

 

1. Cargo transfer and fixing

Reasonable loading

According to the nature, packaging and transportation requirements of hazardous chemicals, reasonably arrange the loading position and method of the goods to ensure the stability of the center of gravity and avoid tilting and squeezing of the goods.

Proper fixing

Use appropriate fixing devices to firmly fix the goods to prevent shaking or falling during driving.

Temperature control

For hazardous chemicals with special temperature requirements, ensure that the refrigeration or insulation equipment of the transport vehicle operates normally to keep the goods within the specified temperature range

 

2. Driving operation and safety

Control the speed

Avoid speeding, reduce sudden braking and sharp turns, drive smoothly, and reduce the risk of vehicle accidents. Avoid fatigue driving

The hot weather in summer can easily make people tired. Drivers should ensure sufficient rest time and avoid fatigue driving. Pay attention to road conditions

Pay attention to warning signs and traffic signals on the road and prepare for emergencies in advance.

No fireworks

No fireworks in and around the vehicle, and eliminate all sources of fire that may cause fire.

 

3. Emergency handling and preparation

Equipped with emergency equipment

The vehicle should be equipped with emergency equipment such as fire extinguishers, leak emergency handling tools, personal protective equipment, etc., and regularly inspected and maintained to ensure that they are in a usable state.

Formulate emergency plans

Transportation companies and drivers should be familiar with the content and process of emergency plans, and be able to take measures to deal with emergencies quickly and effectively in the event of an emergency.

Emergency drills

Conduct emergency drills regularly to improve the emergency response and coordination capabilities of drivers and related personnel.

 

 

In short, the safety of hazardous chemical transportation in summer is extremely important. Drivers and related personnel must attach great importance to it, strictly abide by relevant laws and regulations and operating procedures, strengthen vehicle inspection and maintenance, pay attention to cargo loading and fixing, standardize driving operations, make emergency preparations, and ensure the safety of hazardous chemical transportation.