Submersible pumps are designed to work in water and enable pumping liquids from very great depths. The installation of deep well pumps is necessary, among other things, to obtain water from a deep well, but this is not their only application. Deep well pumps are successfully used in households and various industries. They can have a screw or monoblock structure and are available on the market in any sizes, depending on the diameter parameters. Let's check how a submersible pump works and where is it used?
What are the uses of submersible pumps?
Submersible pump it is used primarily to extract water from vertical groundwater intakes, such as deep wells and from free-standing reservoirs. Remember that pumps pumping drinking water must have appropriate hygiene certificates. Submersible pumps are also used in many industries, including the oil industry for extracting oil and the mining industry for drainage of underground structures. They are also used in the brewing industry, in water and sewage networks and in agriculture. They can also be used to extract mineral and thermal waters and even pump sea water.
Submersible pumps are used in places where the water table is below eight meters. These devices can be monoblock, in which case the motor is integrated with the rotor, or screw-type, i.e. operating based on a worm mechanism. The submersible pump should be energy efficient, reliable and economical to operate. Submersible pumps are not intended to transport contaminated water or liquids containing fibrous or abrasive particles.
How do submersible pumps work?
A submersible pump is also called a centrifugal pump, which well reflects the specificity of its construction and explains the principle of operation. The submersible pump can operate vertically or horizontally and starts only when water is drawn in. The heart of a submersible pump is a radial or diagonal impeller, which creates a pressure difference between the suction and discharge sides and increases the angular momentum of the liquid. The submersible pump is therefore a pressure pump. The rotor is driven by an electric motor, cooled by the flowing liquid. The pump is mounted directly on the submersible motor in a vertical position. It is available in a single-phase or three-phase version. The integrated clutch transfers the drive from the engine to the hydraulic element, i.e. the blade rotor system. On the discharge side, the submersible pump is connected to the discharge pipeline using a flange or thread. Modern deep-well pumps operate automatically and are equipped with water level sensors and special fuses to protect against overheating of the device or its destruction as a result of an electrical short circuit. They are characterized by a high degree of failure-free operation.
