Diesel engine pump is a water pump powered by a diesel engine, which completely reduces the labor intensity of workers, and is easy to use, move and install, with less maintenance, and stable performance.

The advantages of diesel engine pumps compared with ordinary centrifugal pumps are as follows:

(1) It can meet the requirements of diesel engine process. In the production of diesel engine, the pump must not only transport liquid materials and provide the necessary pressure required by the process, but also ensure the amount of material transported. In a certain diesel engine unit operation, the pump flow rate (unit: Cubic meters per second) and head should be stable to keep the pump running efficiently and reliably.

(2) The media conveyed by corrosion-resistant diesel engine pumps, including raw materials, reaction intermediates, etc., are often corrosive media. An electric pump is a mechatronic device that is directly driven by a diesel engine and can start and realize water supply in a short period of time. This requires proper and reasonable selection of pump materials to ensure the safe, stable, and long-life operation of the pump.

(3) The high-temperature medium delivered by the high-temperature and low-temperature diesel engine pump includes process liquid materials as well as heat-carrying liquid required and produced by the reaction process. For example: condensate pump, boiler feed water pump, heat transfer oil pump. There are also many types of low-temperature media delivered by diesel engine pumps, such as liquid oxygen, liquid nitrogen, methane, etc. The low-temperature working temperature of the pump is mostly -20~-10°C. Regardless of the high temperature or low temperature diesel engine pump, the selection of materials and structure must be appropriate, and it must have sufficient strength. The pump parts designed and manufactured can be affected by heat shock, thermal expansion, low temperature cold deformation, cold brittleness, etc.

(4) Wear resistance and erosion resistance. Because the flow of diesel engine pumps contains suspended solid particles, and the impellers and cavities of the pumps also work under high pressure and high flow rate, the protective layer of the parts of the pump is destroyed, and its service life is longer. Short, so it is necessary to improve the wear resistance and erosion resistance of the diesel engine pump. This requires the use of wear-resistant manganese steel, ceramics (raw material: non-metallic minerals), cast iron, etc., as well as erosion-resistant titanium and manganese steel. Wait.

(5) Reliable operation Reliable operation of a diesel engine pump has two meanings: one is that it does not fail in long-term operation; the other is that various parameters are stable during operation. Reliability of operation is very important to diesel engine production. If the pump fails frequently, it will not only cause frequent shutdowns, affecting production and economic benefits, but sometimes may also cause accidents in the diesel engine system. The fluctuation of the pump speed of the diesel engine will cause the fluctuation of the flow rate and the pump outlet pressure, which will make the production of the diesel engine not work normally or the reaction in the system will be affected, and the materials will not be balanced.

(6) No leakage or less leakage. The medium conveyed by diesel engine pumps is mostly flammable, explosive, toxic and harmful liquids. Once leaked, it will seriously pollute the environment, endanger personal safety and the physical and mental health of employees, and it is not in line with non-leakage factories and The requirements of a clean and civilized factory must ensure that the diesel pump does not leak during operation, adopt new technologies and new materials for the seal of the pump, operate in accordance with regulations, and perform high-quality maintenance.

(7) It can transport the liquid in the critical state, and the liquid in the critical state tends to vaporize when the temperature increases or the pressure decreases. An electric pump is a mechatronic device that is directly driven by a diesel engine and can start and realize water supply in a short period of time. Diesel engine pumps sometimes deliver critical liquids. Once the liquid vaporizes in the pump, it is prone to cavitation damage. This requires the pump to have high cavitation resistance. At the same time, the vaporization of the liquid may cause frictional bonding between the moving and static parts of the pump, which requires the relative gap to be larger. In order to avoid damage to mechanical seals, packing seals, labyrinth seals, etc. due to dry friction due to the vaporization of liquids, this type of diesel engine pump must have a structure that fully removes the gas generated in the pump.