The development history of water pumps is extremely long. My country had "water pumps" as early as 1600 BC in the Shang Dynasty. At that time, it was also called jié gáo. It was a tool used to transport water for agricultural irrigation. With recent With the development of modern industry, the uses of water pumps are constantly being expanded, and are not limited to water use. Let's take a look at where water pumps are used in various industries.

Picture | Jumei

01 Agriculture

As the primary industry, agriculture is the foundation for the development of the national economy and the survival of the people. Agriculture is as dependent on water pumps as plants are on water. In terms of farmland irrigation, the South is dominated by individual farmers. When planting rice and other crops, farmers mostly draw water from small rivers. The irrigation volume is large and takes a long time. This type of agricultural irrigation is suitable for small self-priming pumps, while irrigation in the North mostly draws water from small rivers. River water and well water are suitable for submersible pumps when the lines are long and the height difference is large.

Figure | Agricultural irrigation

In addition to farmland irrigation, drinking water for livestock and poultry is also inseparable from water pumps. Needless to say, large farms can use non-negative pressure water supply systems to connect tap water pipes to achieve constant pressure water supply to ensure that water is available at any time; pastoral areas such as Inner Mongolia Groundwater needs to be extracted and stored in water storage tanks to meet domestic and livestock water needs, and submersible pumps and self-priming pumps are indispensable.

Picture | Fetching water from deep wells

02 Shipping industry

The number of water pumps on large ships is generally 100 or more, and they are mainly used in four aspects: 1. Drainage system, to discharge the accumulated water at the bottom of the ship to avoid ensuring the safety of the hull. 2. Cooling system, the water pump transports water to the cooling equipment to ensure the normal operation of engines and diesel engines and other equipment, and maintain the stability of the power system. 3. Fire protection system. The water pump in the fire protection system needs to have self-priming and pressurization functions, so that it can quickly respond to the fire and extinguish the fire in a timely manner. 4. Wastewater treatment system: The treated wastewater must be discharged through a water pump at a certain amount and speed during the voyage to reduce damage and pollution to the marine environment.

Figure | Ship’s internal water supply system

In addition to the above specific uses, the water pump can also be used to clean the deck, flush the cargo hold, and can also adjust the displacement of the ship by increasing water and discharging water when loading and unloading cargo to control the balance of the hull and the speed of travel.