Many summer residents, who have a well, well or a pond on the site, know very well what the vibrating submersible pump "Malysh" is. Historically, it turned out that this brand of such pumps acquired the title of "people's", becoming incredibly popular.
In order to raise the liquid from the source to the point of analysis, a pump is needed. There are several basic modifications of them, differing in both the installation and the principle of operation. Depending on the placement, surface and submersible models are distinguished. All the vulnerabilities of the latter are completely hermetic, which makes it possible to constantly keep such a pump under water, removing only for the performance of service. Such models push water through a pipeline, rather than create a vacuum. The submersible vibrating pump is the most affordable modification. Centrifugal devices, which use a system of intake wheels, as well as worm gears with worm gears are much more expensive.
An ordinary electromagnet
The submersible vibratory pump is very simple. It is based on a double laminated core made of electrical steel (as in induction transformers).
Principle of operation
On the opposite side of the movable core is placed a metal rod on which a rubber disk-shaped piston is attached. The core itself is fixed in the pump casing with a dense elastic "skirt" made of rubber - a vibrator. When power is supplied to the coil, a magnetic field arises and attracts the movable part of the core. The piston located in a special compartment, pulling back, creates a vacuum, and through the non-return valves, water from the outside rushes into the chamber. Since the current is variable, then when the sine curve passes through zero, the field per millisecond fades, and at that moment the vibrator skirt pushes the core with the piston back, thereby creating pressure.
Such solutions have two significant drawbacks, which do not allow us to recommend these types of pumps to ubiquitous use. The first is the vibration of the hull, caused by the very principle of work. It is believed that such pumps can not be used in wells in which collapse or undesirable soil layers may occur. We recommend installing such solutions only in wells or water bodies, rather than in narrow wells where vibration can destroy the walls. The second drawback is the rapid wear of the rubber parts of the product due to the constant load. With intensive work, an annual audit is required with replacement of the piston.