What Is A Fully Automatic Self-priming Pump?

The automatic self-priming pump is a self-priming centrifugal pump, which has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. There is no need to install a bottom valve in the pipeline, and it is only necessary to ensure that there is a quantitative suction liquid stored in the pump body before work. Different liquids can use different material self-priming pumps.

The working principle of the automatic self-priming pump is to fill the pump casing with water (or the pump casing itself has water) before starting the pump. After starting, the impeller rotates at high speed to make the water in the impeller channel flow to the volute. At this time, the inlet forms a vacuum, which makes the water inlet check door open, and the air in the suction pipe enters the pump and reaches the outer edge through the impeller channel.

The pump adopts the pump body structure with axial liquid return. The pump body is composed of suction chamber, liquid storage chamber, scroll chamber, liquid return hole, gas-liquid separation chamber, etc. After the pump starts normally, the impeller will suck the liquid stored in the suction chamber and the air in the suction pipeline together, The inside can be completely mixed, and under the action of centrifugal force, the liquid entrains the gas and flows to the outer edge of the scroll, forming a white foam belt with a certain thickness and a high-speed rotating liquid ring on the outer edge of the impeller.

The gas-liquid mixture enters the gas-liquid separation chamber through the diffusion tube. At this time, due to the sudden decrease of the flow rate, the lighter gas is separated from the gas-liquid mixture, and the gas continues to rise and discharge through the outlet of the pump body. The degassed liquid returns to the liquid storage chamber, and enters the impeller again through the return hole, mixes with the gas sucked from the suction pipe inside the impeller again, and flows to the outer edge of the impeller under the action of the high-speed rotating impeller... ..As this process goes on in circles, the air in the suction line is continuously reduced until the air is exhausted, the self-priming process is completed, and the pump is put into normal operation.

There is also a cooling chamber at the bottom of the bearing body of some pumps. When the bearing heat causes the temperature rise of the bearing to exceed 70 degrees, the coolant can be injected into the cooling chamber through any one of the coolant pipe joints and circulated for cooling. The sealing mechanism inside the pump to prevent the liquid from leaking from the high-pressure area to the low-pressure area is the front and rear sealing rings. The front sealing ring is installed on the pump body, and the rear sealing ring is installed on the bearing body. When it affects the efficiency and self-priming performance of the pump, it should be replaced.

A pump is a machine that moves or pressurizes a fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. The pump is mainly used to transport liquids such as water, oil, acid and alkali liquid, emulsion, suspoemulsion and liquid metal, and can also transport liquid, gas mixture and liquid containing suspended solids. Pumps can usually be divided into three categories according to their working principles: positive displacement pumps, dynamic pumps and other types of pumps. In addition to classification by working principle, it can also be classified and named by other methods.

For example, according to the driving method, it can be divided into electric pumps and water wheel pumps; according to the structure, it can be divided into single-stage pumps and multi-stage pumps; Water pumps, oil pumps and mud pumps, etc. According to whether there is a shaft structure, it can be divided into linear pumps and traditional pumps. The water pump can only transport the logistics with fluid as the medium, and cannot transport solids.

In the production of the chemical and petroleum sectors, raw materials, semi-finished products and finished products are mostly liquid, and the raw materials are made into semi-finished products and finished products, which need to go through complex processes. In addition, pumps are used to regulate temperature in many installations.

In agricultural production, pumps are the main irrigation and drainage machinery. my country's rural areas are vast, and a large number of pumps are needed in rural areas every year. Generally speaking, agricultural pumps account for more than half of the total output of pumps.

In the mining and metallurgical industry, pumps are also the most used equipment. Mine needs to use pumps to drain water, and pumps are needed to supply water in the process of beneficiation, smelting and rolling.

In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, and tertiary pumps, and thermal power plants need a large number of boiler feed water pumps, condensate water pumps, oil and gas mixed pumps, circulating water pumps, and ash pumps.

In national defense construction, the adjustment of aircraft flaps, tail rudders and landing gear, the rotation of warships and tank turrets, and the ups and downs of submarines all require pumps. High-pressure and radioactive liquids, some also require pumps without any leakage.

In short, whether it is airplanes, rockets, tanks, submarines, or drilling, mining, trains, ships, or daily life, pumps are needed everywhere, and pumps are running everywhere. This is why pumps are listed as general machinery, which is a major product in the machinery industry.

Electric pumps are pumps driven by electricity. The electric pump is composed of a pump body, a water pipe, a pump base, a submersible motor (including cables) and a starting protection device. The pump body is the working part of the submersible pump, which consists of water inlet pipe, diversion casing, check valve, pump shaft and impeller and other components. There are two ways to fix the impeller on the shaft.

Taizhou Werto Mechanical & Electrical Co., Ltd. is a professional Centrifugal Water Pump Manufacturers. If you need it, you can click the official website to contact us. We are willing to provide you with more information services.