How to properly equip an autonomous water supply system or organize watering from a well in the country? First of all, you need to choose a pump model. In addition to the function of transporting water, it must be reliable, and its power must correspond to the parameters of the system. For surface installation, a peripheral pump will be the best choice.
Scope of application
The main purpose of any pumping equipment is to pump liquid. For this, various mechanisms are used, which differ not only in design, but also in the principle of operation. Submersible centrifugal models cannot always provide the proper level of pressure and the speed of transporting water.
Surface peripheral pump will be the best alternative as it has a number of operational advantages:
- Compact body combines good power.
- Self-priming function makes it possible to lift water from a depth of up to 12 m.
- Application of the principle of forming a centrifugal flow using an ejector greatly increases the speed of movementliquid.
The vortex pump can be installed at any distance from the place of water intake - just select the device of the required power. As additional equipment, water level sensors, a voltage stabilization unit and an automatic start system can be connected to it.
Since their housing is moisture permeable, pumps are often installed directly in the house or in a separate building. For temporary use, it is possible to install directly on the ground. But in this case, protection from possible precipitation is necessary.
Design and principle of operation
The good performance and technical performance of a vortex pump would not be possible without the specific structure of the device. Structurally, it consists of two main blocks - a pressure one, for pumping water, and an electric motor. The latter is necessary to transmit torque to a common shaft.
The casing in the pump part has a spiral shape. The disc with blades is mounted on the motor shaft. When it is started, rotation occurs, as a result of which water fills the chamber. There is a centrifugal force, which creates excess water pressure in the peripheral areas. As a result, the liquid rushes into the outlet pipe. Due to the different distance from the center of the disc to the inside of the casing, the effect of accelerating the movement of water along the pump circuit occurs. As a result, the speed of movement increases and,respectively, the value of the water column. The vortex pump qb 60, which operates according to these principles, is a prominent representative of models of this class.
Self-priming models
A separate category includes devices that use the method of creating an additional air cushion to improve performance. For this, the vortex centrifugal pump has a special air valve. When the engine starts, the blades begin to rotate. Simultaneously with the occurrence of centrifugal force, a vacuum occurs in the rear chamber of the device. Under the action of external atmospheric pressure, air flows through the channels. They give additional acceleration to the fluid and at the same time create a barrier that prevents water from entering the engine.
Such a vortex centrifugal pump is capable of providing a powerful water pressure with simultaneous regulation of its quantity with small dimensions. Self-priming models are installed in combination with a common autonomous cold water supply system for automatic water supply from a well.
Installation and operation
In order for the vortex pump to perform its functions properly, it must be professionally installed. At the first stage, the installation site is selected - it should be optimally located relative to the source of water intake and the end point of its transportation (house, irrigation area). Further arrangement is carried out, which includes the following steps:
- Creating a hardfoundation. The best option is to install a small reinforced concrete slab or pour a concrete base. This is necessary to maintain the level of installation of the pump. Even with a slight deviation, its operation may become unstable.
- Protection from external weather factors. Often, a canopy is made for this (for temporary installation) or a detached building (permanent location). In the latter case, it is necessary to take care of heating the premises, since sub-zero temperatures can lead to freezing of water and breakdown of the station.
- Stabilization of the incoming mains voltage. This will prevent equipment malfunction. To do this, install a voltage regulator.
Upon completion of installation, the tightness of all connections is checked, the correspondence of the actual head of the volume of water stated in the pump passport.
Selection Tips
When choosing a particular model, it must be remembered that the peripheral pump must perform 2 main functions - to ensure uninterrupted fluid supply from the well and at the same time have a reliable design.
Many models on the market meet these parameters. But in order to choose the optimal one, it is recommended to adhere to the following recommendations:
- Optimum power and volume of pumped liquid. Depending on the needs, it is necessary to choose such a model so that its technical characteristics are fully consistent with the required ones - the volume of fluid from the well should not be less than the minimum indicatorconsumption.
- Head calculation. It depends on the depth of the water intake source and horizontal pipelines. The manufacturer indicates this data in the equipment passport.
- Pump guaranteed.
Taking into account these factors and applying a systematic approach, you can choose the most suitable equipment model that will fully meet the requirements of the water supply system.
