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Oct 09, 2021
The self-priming centrifugal pump is a kind of pump which uses the electric impeller of the motor to rotate at a high speed, thus using the centrifugal force to lift, transport and circulate the liquid. With acid and alkali anti-corrosion pump body, as well as long-term and stable product characteristics. It is widely used in electroplating industry. So what problems should be paid attention to in...
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Sep 25, 2021
Many customers in the use of fluoroplastic lined centrifugal self-priming pump work, found that the self-priming pump can not absorb water, do not know what is the cause, and will not repair. With the principle of fluoroplastic lined centrifugal self-priming pump, talk about what to do in this situation. 1. Air leakage. The interior of the self-priming pump is closed, and when the self-primin...
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Sep 23, 2021
The speed ratio of a centrifugal pump refers to the frequency at which the pump shaft rotates in a unit time. Public n stands for Enterprise:r/min. The usual centrifugal pump has the increase of 2900r/min or 1450r/min, while the large centrifugal pump has 970r/min or 730r/min. When the speed ratio is fixed, the total flow rate, pump head and output power are all fixed. The speed ratio of centrifug...
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Sep 18, 2021
In the process of converting mechanical energy into liquid energy, the centrifugal pump is accompanied by various losses, which are expressed by the corresponding efficiency. The internal loss of centrifugal pump can be divided into mechanical loss, volume loss and hydraulic loss, and the corresponding pump efficiency can also be divided into mechanical efficiency, volumetric efficiency and h...
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Sep 17, 2021
What is the function of the leakage reducing ring of the centrifugal pump? There is a rotating gap at the joint between the outer edge of the suction inlet of the centrifugal pump impeller and the inner wall of the pump shell, and there is a high and low pressure area on both sides of the gap. If the clearance is too large, the high-pressure water in the pump housing will leak into the l...
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Sep 14, 2021
When the stainless steel centrifugal pump starts up, if there is gas in the pump, because the density of the air is small, the centrifugal force produced is also relatively small, at this time the center of the centrifugal impeller can only produce a relatively small negative pressure, and can not absorb the liquid, it will produce the centrifugal impeller idling, destroying the stainless steel ce...
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Sep 13, 2021
There are many classifications of centrifugal pumps, which are divided according to different structural characteristics. The specific classification of centrifugal pumps is as follows: Classify according to the number of working impellers. 1. Single-stage pump: that is, there is only one impeller on the pump shaft. 2. Multi-stage pump: that is, there are two or more impellers on the pump shaft, a...
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Sep 01, 2021
For the transportation of acid and alkali liquids, when users usually choose stainless steel pumps, they do not know how to deal with the water hammer produced in the process of use. Stainless steel pumps are generally divided into stainless steel centrifugal pumps and stainless steel magnetic pumps, with vertical and horizontal structures. Stainless steel has corrosion resistance, so how is the w...
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Aug 30, 2021
Sulfuric acid, colorless oil liquid, has strong corrosiveness, relative density 1.84g/cm3, at 337C can dissolve with water in any proportion and release a large amount of heat energy, making the water boil. Sulfuric acid is heated to 290 ℃ and begins to release sulfur trioxide. If sulfuric acid leaks in the process of transportation, it is a headache for many chemical enterprises. T...