The sewage washing and suction truck is composed of many parts.
The main part is divided into two parts, one is the chassis and the other is the upper body .
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The upper body of the cleaning sewage suction truck, that is, the part of the cleaning sewage suction truck to achieve high-pressure cleaning and sewage suction functions. The main components include tanks, high-pressure pumps, vacuum pumps, pipes, valves, etc.
Tank
The tank body of the cleaning sewage suction truck is composed of two parts, one is the sewage tank used to hold the sewage during the sewage suction operation, and the other is the clean water tank used to hold the clean water during the high pressure cleaning operation. When cleaning the tank of the sewage suction truck as one tank, the appearance of the tank is a large cylindrical tank. The large cylindrical tank is separated into two compartments, the one near the cab is the clean water tank, and the one near the rear of the car is the sewage tank. There is also a tank body with a hanging water tank. The cylindrical tank in the middle is used as a sewage tank, and a rectangular tank is welded on both sides of the sewage tank to serve as a clean water tank.
High-pressure pump
When the sewage cleaning and suction truck is dredging the pipeline, the reason why it can produce a strong and powerful high-pressure water column depends on the high-pressure pump. According to the different configurations of the cleaning and suction trucks, choose high-pressure pumps of different models and parameters. Common high pressure pump parameters are 130 flow 18 MPa, 170 flow 24 MPa, 215 flow 22 MPa, 250 flow 20 MPa
Sewage pump
In order to complete the sewage suction operation, the cleaning sewage suction truck needs to rely on the sewage suction pump. The sewage suction pump has a rotary vane vacuum pump, which is also known as an oil pump. The oil pump is small in size, light in weight, and requires little power. It is mainly used in small cleaning and sewage suction vehicles. There is also a water ring vacuum pump, which is often referred to as a water pump. Pumps are bulky and heavy, and require a lot of power. Choosing an oil pump or a water pump also needs to be based on the actual use of the cleaning sewage truck. Usually, the cleaning and suction trucks in the warm southern regions will choose the water pump, and the cleaning and suction trucks in the cold northern regions will choose the oil pump.
pipeline
There are many pipelines for cleaning sewage suction trucks, including the high-pressure cleaning part of the clean water pipeline, the vacuum pipeline of the sewage suction part, the hydraulic pipeline of the hydraulic part, etc. All kinds of pipelines are together and are intricate, which brings certain troubles to maintenance. . When the cleaning and suction truck is repaired and maintained, it is necessary to understand the function and starting point of each pipeline.
valve
There are also many valves for cleaning sewage suction trucks, mainly ball valves, four-way valves, switching valves, three-way valves, etc. Different valves have different functions. The ball valve is mainly used to open and close the suction and discharge ports. The four-way valve is used to link the vacuum pump and the tank to control sewage suction and operation and sewage discharge. The changeover valve is used to link the high pressure washer tube and the turntable. The three-way valve is used to control the start and stop of the high pressure cleaning operation.
