Sometimes, you need to prevent the ingress of liquid into the pump and to prevent leakage. To do this, use a sealed pump. Its main feature is that the shaft of the motor and pump are not connected. It is therefore not necessary to make holes in the housing. The rotation occurs with the help of magnets mounted on the shafts of pump and motor.
Sealed pump appeared in the world thanks to American scientists in the late 40-ies. Until then, the pumps had a low productivity. This happened due to the fact that the magnets do not touch each other, and were distributed under the hull. Due to its large thickness was magnetic losses. Modern technologies allow to significantly reduce these losses and increase the efficiency of the unit.
Chemical sealed Pumps are used for pumping corrosive liquids. The Cost of such equipment artificially high. But the workflow is much safer. In addition, no need to seal the pumps. As structural elements made of chemically stable metals, there is no reason to use the pump for pumping ordinary liquids.
As mentioned earlier, the design of the element has no holes, and therefore will not leak.
Looking at a sealed pump breakdown, you can see that the work is carried out with the help of two magnets. One of them is located on the pump shaft, and the other — on the engine. Therefore, the energy is transferred at a distance. His back is a single piece, since the shaft of the device is directly inside the body.
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Sealed pump has such advantages:
These characteristics can be attributed neither to the positive nor to the negative sides. They include:
Among the disadvantages there are:
The Principle of operation of hermetically sealed equipment is simple. The Pumped fluid enters the pump through the inlet pipe. With the spinner wheels make enough to pump the liquid from one environment to another. The motor and pump on the same shaft. The rotor space is filled with water. One part is used as a lubricant for the bearings. Also, the fluid serves to cool the structural elements.
Between the engine and the working environment installed shielded thin tube with sealed glass. The design of the motor and the rotor provided by the bearings. In order to make it easy to monitor their condition, the front panel is sealed pump screen is installed.
Many users of this device are fully satisfied. It has high performance, allowing you to quickly transfer liquid from one place to another. A significant advantage is no leakage and long service life. Among the negative sides of users are the high cost of the device. A good sealed pump costs about 200 THD The same amount can afford not everyone. Another disadvantage is the immunity of solid particles. In contact with the latter, some elements of the pump fail. Not to spend additional funds to repair or replace structural elements, it is necessary to monitor the pumped liquid.
Sealed pump appeared in the late 40-ies, and since then has encouraged many users. Every year it became better. So today we have a high quality and useful equipment. Typically, they are used for pumping corrosive liquids.
...Article in other languages:
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DE: https://tostpost.com/de/gem-tlichkeit/1015-hermetische-pumpe-das-prinzip-der-arbeit.html
KK: https://tostpost.com/kk/domashniy-uyut/1018-i-lg-sh-sor-y-zh-mys-steu-princip.html
PL: https://tostpost.com/pl/komfort-domu/1021-hermetyczne-pompy-zasada-dzia-ania.html
PT: https://tostpost.com/pt/o-aconchego-do-lar/1018-selada-a-bomba-princ-pio-de-funcionamento.html
TR: https://tostpost.com/tr/domashniy-uyut/1024-hermetik-pompa-al-ma-prensibi.html
UK: https://tostpost.com/uk/domashn-y-zatishok/1020-germetichniy-nasos-princip-roboti.html
Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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