Suction trucks are mainly used in some urban and rural sanitation departments, for the purpose of public facilities, the suction of underground pipe networks, the transport of manure, or the transportation of other sewage, etc., and also the extensive use of animal manure suction and transportation at some farms. Wait. The vehicle is mainly relying on a vacuum pump to pump out the air in the honeypot so that it can form a negative pressure. The atmospheric pressure outside the tank is used to push the dirt through the suction tank and push it into the tank. The operation is the opposite of a sewage job.
When using a vacuum pump to suck manure, the suction truck must use the correct operation method. It must not be performed after the suction truck has been filled with tanks. This will not only cause the suction pump to cause Damage, in addition, will cause a certain degree of damage to the engine of the vehicle. Although the suction truck is equipped with a spill-prevention valve, the main feature of the spill-prevention valve is to prevent the suction truck from overflowing into the vacuum pump after it has been filled. It is not a million-year-old part and it is because of the outside world. The influence of the factors led to the failure of the spill control valve. Those who have filled the suction truck tank and are still pumping it, will directly make the ball of the spill-proof valve get stuck in the impurities in the sewage, or the float ball will be biased. At this time, the suction truck In which gap the dirt in the tank will permeate out. If there is too much inhalation of impurities, the oil pipe mouth will be blocked. At the same time, the oil inside the oil separator will not be able to be given to the vacuum pump again. The supply of lubrication, after a long time, the vacuum pump will burn, hot conditions. If the vehicle tank is already full, the suction pump still continues to pump but there is no more air to pump. At this time, the vehicle generator will be overloaded and cause the engine to stall. In severe cases it will lead to damage. of.
Therefore, the driver's friend of the suction truck cannot think of relying on the anti-overflow valve to understand whether the suction truck is full or not. It should be after a certain period of time. The tank is full, and this method is the most accurate and safe method. (Text / Sun Ni)
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