Industry News

The brand new Isuzu cleaning and sewage suction truck will not have low suction power. When the Isuzu cleaning and sewage suction truck is used for a long time and the components are too worn, insufficient suction may occur. The suction power of the cleaning and sewage suction truck is insufficient. Reducing the suction range of the sewage suction truck prevents the extraction of high-concentration sewage.

So what is the reason why the suction power of the cleaning and suction truck is insufficient? As a truck user, we believe many people are concerned about this issue.

1. Air leakage: Cleaning the sewage suction truck uses a vacuum pump to discharge the air in the tank to form a vacuum, forming a negative pressure. The air pressure is used to generate suction to suck the dirt into the tank. If the sewage suction tank, sewage suction pipeline, and vacuum exhaust truck are cleaned, If there is a leak in the air pipe, the vacuum cannot be achieved in the tank, and naturally it will not be able to generate enough suction.

2. The valve of the sewage suction pipeline is closed or the sewage suction pipeline is blocked: The valve of the sewage suction pipeline is closed or insufficiently opened, or the sewage suction pipe is blocked. Although the cleaning sewage suction truck generates sufficient suction, the suction is blocked in the valve or pipe, and the sewage cannot enter the sewage suction tank smoothly and smoothly. , thus causing the sewage suction speed to slow down and causing the illusion of low suction power of the sewage suction truck.

3. Vacuum wear of cleaning sewage suction truck: There are two aspects of vacuum wear, one is the wear of the pump casing and the other is the wear of the scraper. A vacuum pump will naturally wear out after being used for a long time. If the pump casing is severely worn, the inner wall of the casing is not smooth, and grooves appear, it is generally of no repair value and the pump must be replaced directly. Scraper blade wear is common. After the scraper blade is worn, it cannot adhere to the inner wall of the sewage pump to form a vacuum, and the scraper blade needs to be replaced in time.

4. The exhaust pipe is not smooth: The scheduled route for cleaning the sewage suction truck starts from inside the tank. The discharged gas flows from the anti-overflow valve along the exhaust pipe to the water vapor separator. After the water vapor separator enters the vacuum pump along the pipeline, the gas that needs to be discharged is The oil is forcibly squeezed out of the vacuum pump, passes through the oil and gas separator, and is discharged out of the vehicle. In other words, if the anti-overflow valve, air pipe, and water vapor separator are blocked, the exhaust will be blocked and sufficient suction will not be generated.

5. The engine and vacuum pump of the cleaning sewage suction truck are improperly selected and cannot meet the needs: This requires us to pay more attention when buying a suction and cleaning truck. If the budget allows, try to choose an engine with high horsepower and good quality, such as Isuzu. The vacuum pump should be selected with fast rotation speed and large displacement. The suction power of the cleaning and sewage suction truck is directly related to the engine and vacuum pump. Once these two major components are determined, it will be difficult to replace them later. Therefore, when purchasing a cleaning and suction truck, you must be careful in choosing the engine and vacuum pump.