Risk Factors and Preventive Measures of Dangerous Goods Transportation in Summer

With the advent of hot summer, the potential risks of dangerous goods transportation are gradually increasing, which can be divided into traffic accident risks and cargo safety risks. Next, we will analyze the main risk factors in summer and summarize the corresponding protective measures to ensure the safety of driving and transportation in summer.

     1. Driver factors

     This risk mainly refers to the driver's lack of energy and fatigue driving, and the main type of accident is traffic accident. In summer, the days are long and the nights are short, the temperature is high, coupled with the nuisance of various mosquitoes, the driver does not have a good rest, and is prone to fatigue, drowsiness, and lack of energy while driving, which brings major safety hazards to driving safety; ", affecting the driver's correct judgment of the road conditions.

     Preventive measures: All drivers should pay attention to rest, change shifts in time, ensure that they are energetic, concentrate on driving, supervise each other, remind each other, improve their own safety awareness, and drive carefully.

     2. High temperature factors

     High temperature not only affects the driver's body and mind, but also poses a major safety risk to vehicle facilities and cargo safety.

     (1) Brake failure. At high temperature, the brake cup will expand and deform due to high temperature, causing the brake to be out of control, especially when going down a long or steep slope, frequent and continuous use of the brakes, brake failure is the culprit of serious accidents.

     (2) Flat tire. According to the statistics of relevant departments, 46% of traffic accidents on expressways are caused by tire failures, and tire blowouts account for 70% of the total tire accidents. There are five main reasons for "destroyed tires". Aspects: the air pressure is too high or too low; the service life of the tire is too long; the rubber surface of the tire is aging and cracked; the tread is worn to the limit; the steel ring is deformed.

     (3) The water temperature is too high. In traffic jams or long-term idling, the engine water temperature gauge will display too high, the fan will work at high speed for too long, the engine noise will increase, and it will cause serious damage to the engine. The fault is most obvious when the air conditioner is turned on in high temperature weather: when the air conditioner is turned on in high temperature weather, the idling speed is unstable, the speed fluctuates too much, the power is weak during rapid acceleration, and the engine has abnormal noise; after the hot car is turned off for more than ten minutes, it is difficult to start the car when it is restarted ;When the car is hot, it will automatically turn off the engine sometimes; when the car is cold, the cooling temperature of the air conditioner is very cold, and when the car is hot, the cooling effect of the air conditioner is not good, and there is a large resonance buzzing sound in the air conditioning system; when the car is hot, the clutch of the air conditioner compressor Suction breaks frequently, or even disconnected, causing the air conditioner in a hot car to not cool.

     (4) The vehicle spontaneously ignites. The increase in the service life of the vehicle will cause the aging of some components such as the vehicle circuit. Under high temperature, it is especially easy to cause the vehicle circuit to spontaneously ignite, and then cause the vehicle to be damaged.

     (5) The cargo carried spontaneously ignites, explodes, or burns and explodes due to traffic accident collision. Under high temperature conditions, some dangerous goods are extremely volatile, flammable and explosive, and are particularly prone to serious accidents when exposed to open flames or violent collisions.

     Preventive measures: For braking problems, make full use of the drag effect of the engine to control the speed of the vehicle, avoid frequent and continuous use of brakes, make reasonable use of exhaust brakes, and strictly prohibit coasting in neutral gear; regularly check the performance of the brake braking system, and do a good job in time Repair or replace; if possible, take a short break on the way.

     To prevent vehicle tire blowouts, one is to use high-quality tires, the other is to check the tire pressure and wear frequently, stamp, decompress and replace them in time, and the third is to pay attention to the heat dissipation of the tires while driving, and be careful when parking on the side to avoid tire extrusion.

     In view of the high water temperature, the driver should pay special attention to the reading of the engine water temperature gauge in the instrument panel, add water in time to cool down, and if any abnormality is found, repair and eliminate the fault in time.

     For the risk of vehicle spontaneous combustion, spontaneous combustion of goods, and explosion caused by high temperature, it is necessary to strictly check the safety technical indicators of the vehicle, replace the aging circuit, and ensure that the fire prevention equipment is complete and effective; it is strictly forbidden to fire the vehicle and smoke near the vehicle, and stay away from fire or dangerous sources; When the daily maximum temperature is reached, the vehicle can be properly parked in a cool place to cool down and avoid driving in high temperature sections.

     3. Bad weather factors

     Summer is a season of frequent natural disasters. Rain, hail, strong winds, thunderstorms and the resulting site disasters all have a major impact on driving safety. Rain, hail, strong winds and other weather will reduce visibility, wet road surface, reduce braking resistance, and have a direct impact on driving safety. Strong winds will increase driving resistance and may blow to roadside trees, causing damage to vehicles and personnel ; Thunderstorms can ignite transported goods, especially flammable and explosive goods, which are more likely to cause serious accidents. Geological disasters caused by heavy rain also pose a threat to driving safety. Such incidents mainly occur in southern my country.

     Precautionary measures: In bad weather, the vehicle should stop nearby to avoid sudden wind and rain according to the actual situation. When avoiding, you should also pay attention not to be under protruding buildings and trees to prevent lightning strikes and choose a safe place; when driving in the south, you must keep abreast of the weather and road conditions to avoid dangerous road sections.

     The safety of dangerous goods transportation is related to our life and property safety. In summer, as a high-risk period for the transportation of dangerous goods, we should maintain a high degree of vigilance at all times, enhance the awareness of safety responsibility, and resolutely avoid illegal operations.