Improved design and test of engine driven water pump products

The engine driven water pump is mainly divided into two types: a diesel pump unit based on a self-priming sewage pump, and a diesel pump unit system based on a new strong self-priming pump and adding a vacuum auxiliary device. The difference between diesel trash pumps is that the common type of purchase cost is low, the self-suction height is only 4-5 meters, and the flow rate can only be 800 cubic meters. The new trailer mounted pump with vacuum assist system has a self-priming capacity and can reach 8 -9 meters, fast water discharge time, a wide range of flow rates can be achieved 2600 cubic meters per hour. The requirements for the smooth flow of the diesel dewatering pump must also be noted. Because the diesel engine irrigation pump is close to the exhaust pipe of the diesel engine, the temperature is high. Therefore, it is necessary to prevent major economic accidents such as fires such as breakage, damage and oil leakage of the oil pump.

 In addition, there are two kinds of vacuum auxiliary devices for the self-priming vacuum pump of the new vacuum assisted diesel engine. The vacuum pump system is driven by the pulley of the diesel engine shaft to drive the vacuum pump together with the trailer mounted pump. The whole system is always in the state of vacuum suction. The self-priming pump has a more self-priming performance, so it is called a vacuum-assisted diesel pump that does not stop. Another engine driven water pump is a vacuum assist system that can automatically stop. When the water is pumped up by the vacuum pump, the vacuum pump automatically stops through the clutch. The price of the diesel pump is relatively higher. The two vacuum assisted diesel pumps have the same self-priming performance.

 Both diesel pumps can suck and drain liquids containing large particles of solids and long fibers, especially the new vacuum-assisted diesel engine pump impeller can be made into an open impeller structure with self-priming pump through the particle capacity is more significant. Diesel water pump can be widely used in municipal sewage and flood control projects, agricultural irrigation and so on. The diesel water pump has the characteristics of simple structure, good self-priming performance, strong sewage discharge capacity, high efficiency and energy saving, convenient use and maintenance, integrated or outdoor movable design, and is the first in the diesel engine self-priming pump series. Diesel engine water pump has the advantages of compact structure, small size, high working strength and strong oil supply capacity, which can meet the increasingly compact engine requirements.

At the same time, the overall requirements of the diesel engine water pump for its assembled components must be improved, including its materials, processing accuracy, joint strength and fit clearance to meet the technical requirements of its reliability, average failure time and other related products. The diesel engine water pump is a horizontal, single-stage, single-suction, volute-shell mixed flow pump. Preventive maintenance of diesel pumps is easy and economical, so it is the key to extending service life and reducing operating costs. Daily maintenance Check the fuel level of the fuel tank - observe the fuel storage capacity of the fuel tank and add as needed. Check the oil level in the oil pan of the diesel engine to see if the oil level reaches the mark on the oil scale. If it is insufficient, it should be added to the specified amount, but it should not exceed the upper limit of the scale.