Vacuum pumps are widely used in sewage treatment plants to transport water, wet sludge and flocculant liquid due to their characteristics of variable transport, strong self-suction ability, reversible, and can transport liquid containing solid particles.
Now in the market of pump product sort is more, relatively speaking, the import of pump product design is reasonable, the material is excellent, but the price is higher, the service aspect some do not reach the designated position, accessories for high pump products can be used in different industries and the promotion, play an important role and performance, show good performance and advantage in the industry, according to certain standards in the selection and the way to choose, to ensure the value and function in the practical use.
Domestic production of most imitation of imported products, product quality is uneven, in the selection of domestic production of products, in consideration of its cost performance, the selection of low speed, long lead, transmission parts of good material, rated long life of the product.
Pump selection should follow the principles of economy, rationality and reliability. If the design selection is not considered carefully, it will bring trouble to the use, management and maintenance in the future. Therefore, a reasonable and reliable pump product according to the actual needs of production can not only ensure the smooth production, but also reduce the repair cost. Speed selection of vacuum pump products in the selection of the pump products in accordance with a certain standard and way, can show good performance advantages and contributions in use. Must make the screw pump premature failure, and the high speed screw pump fixed rotor length is very short, easy to wear, thus shortening the service life of pump products. Through the deceleration mechanism or stepless speed regulating mechanism to reduce the speed, so that the speed of three hundred turn per minute below the more reasonable range, compared with high-speed operation of screw pump, the service life can be extended several times.
There is a linear relationship between the flow rate and the rotational speed of pump products. Compared with the screw pump with low rotational speed, although the pump with high rotational speed can increase the flow rate and the head, the power increases obviously. The high rotational speed accelerates the abrasion between the rotor and the stator.
In the wet sludge mixed with solid impurities will damage to the rubber stator of the pump products, so make sure debris into the cavity of the pump is not very important, a lot of sewage plant in front of the pump with a grinder, also some installation or mesh grille device, stop the debris into pump products, for grid should be timely get so as not to cause congestion.
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