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Types of diesel engine water pump and factors affecting the

Article provenance：Hai Rui ZhonglianPopularity：Publication time：2020-03-24 09:47

Types of diesel engine water pump and several factors affecting the efficiency of clean water pump

1. Self priming clean water pump: the water quality is good, the working position is relatively fixed, the suction distance is less than 3.5m, and the pipeline is stable. When it is used for well water supply and orchard irrigation, the trouble of irrigation can be reduced. The actual lift is less than 22 meters, and the working efficiency of chemical pump is slightly poor. When the pump is put into operation for the first time, the circulating drainage shall be added first, and then the self-priming of the pump can be completed.

2. Clean water pump full of water: the water quality is relatively flowing, and the large pipeline is relatively unstable. The actual lift within the suction distance of 2.5m is within 32m. The flow of water pump can be adjusted as needed, which can be used for planting and fruit professional spraying pesticide and irrigation. Water supply, high efficiency. The absorption pipe shall be well sealed.

3. Submersible clear water pump: the water source is sufficient and the water head is low, which is suitable for large water irrigation of farmland and orchard. Since the submersible pump is put into the water and the water is pushed along the axial direction, reducing the output will increase the load of the pump. Therefore, do not install the valve on the drain pipe of the submersible pump to prevent excessive resistance of the pump caused by burning the motor due to the valve closing.

Several factors affecting the efficiency of clean water pump:

1. The efficiency of cleaning water pump itself is the most fundamental impact. For pumps under the same operating conditions, the efficiency difference may be more than 15%.

2. The operation conditions of the clean water pump are lower than the rated conditions of the pump, with low pump efficiency and high energy consumption.

3. The motor efficiency is basically unchanged in application. Therefore, it is very important to choose an efficient motor.

4. The effect of clean water pump efficiency is mainly related to the quality of design and manufacturing. After selecting pump, the influence of later management is not significant.

5. Hydraulic loss includes hydraulic friction loss and local resistance loss. After a period of operation, the surface wear of impeller and guide vane is inevitable, the hydraulic loss increases and the hydraulic efficiency decreases.

6. The volume loss of diesel engine water pump is also called leakage loss, including three kinds of leakage loss of impeller seal ring, interstage and axial force balance mechanism. Volume efficiency is not only related to design and manufacturing, but also to later management. After continuous operation of the pump for a period of time, due to friction between components, the clearance increases and the volume efficiency decreases.

7. The centrifugal pump is idling due to the blockage of filter cartridge and pipeline inlet.

8. Before the start of the pump, the staff did not pay attention to the preparation before the start of the centrifugal pump. The basic operation procedures such as warm pump, disk pump and filling pump are not fully implemented, which often causes air erosion of the pump, large noise, vibration and low efficiency of the pump.

IH type clean water pump is used to transport clean water or other liquids with physical and chemical properties similar to water, and the temperature is not higher than 80 ℃. Main use: suitable for industrial and urban water supply and drainage, also can be used for agricultural drainage and irrigation. The design of the pump is based on the domestic excellent hydraulic model and the performance parameters of is centrifugal pump, and the ingenious combination design is carried out on the basis of the general vertical pump. At the same time, according to the different types of ALG such as using temperature and medium, the chemical pumps and oil pumps suitable for hot water and high temperature corrosion resistance are deduced. This series of products have the advantages of high efficiency, energy saving, low noise, reliable performance, etc., and meet the requirements of the latest JB / t53058-93 standard of the Ministry of machinery. The products are designed and manufactured according to the international ISO2858 standard. It is applicable to industrial and urban water supply and drainage, high-rise building pressurized water supply, garden sprinkler irrigation, fire-fighting pressurization, long-distance transportation, HVAC refrigeration cycle, bathroom and other cold and hot water cycle pressurization and equipment matching, and it is applicable to industrial and urban water supply and drainage, high-rise building pressurized water supply, air conditioning refrigeration cycle, bathroom and other cold and hot water cycle pressurization and equipment matching, with the use temperature of T < 80 ℃.

The hot water pump is suitable for metallurgy, chemical industry, textile, wood processing, papermaking, hotels, bathrooms, hotels and other boilers, high-temperature hot water pressure circulating pump and urban residential heating circulating pump, and the service temperature is lower than 120 ℃.

High temperature clean water pump is widely used in energy, metallurgy, chemical industry, textile, papermaking, boiler, hotel, toilet, hotel and other high temperature hot water pressurized circulation, as well as urban residential heating circulation pump, with the use temperature lower than 240 ° C.