With the self-balancing horizontal multistage centrifugal pump used more and more widely in all walks of life, more and more customers want to buy self-balancing centrifugal pump to replace the old balance plate multistage centrifugal pump, but they are worried that the money is not worth it, buy back is not as good as the old, the self-balancing horizontal multistage centrifugal pump in the end is not good. So self-balancing horizontal multistage centrifugal pump in the end is good? Before answering this question, we must first reach a consensus, which is also the premise of the analysis of the problem: the so-called advantages and disadvantages are relative terms.
That is, if we say that a thing is good or not, what are its advantages and disadvantages, we need to have an object of comparison, or the scope of discussion.
So, next I will simply analyze the shortcomings of self-balancing multistage pumps from the two dimensions that are most common and that customers are more concerned about.
First, energy efficiency
We all know that the self-balancing multistage pump is more efficient and energy-saving.However, this high efficiency is a prerequisite, that is, compared with the traditional D-type multistage centrifugal pump (hereinafter referred to as the old multistage pump), the self-balancing multistage is about 2%-10% higher in efficiency because of its own structural advantages. And this is not absolute, if the process or process of the production of self-balancing manufacturers is not rigorous, or the quality of the castings is not up to standard, such as rough flow channels, cracks, sand holes, etc., the final product may be more energy-efficient than the ordinary multistage pump.
In addition, for another example, under the same working conditions and process head, the efficiency of the self-balancing multistage pump is significantly lower than that of the plunger pump. Although the piston pump is very efficient, the shortcomings are also obvious, the maintenance cycle is too short, which is a loss for enterprises that need continuous production, and it is even more uncomfortable for the machine repair master of the first line of enterprises.
Second, maintenance
1.daily maintenance, self-balancing multi-stage pump is dominant
Daily maintenance, mainly to replace the packing or mechanical seal.
Due to the axial force of the old multistage pump, the pump has 3-5mm axial momentum when it is running, and the rotor swims back and forth when it is working, the rotor can not be positioned, and the spring of the mechanical seal can not be returned in time, resulting in a short service life of the seal. The same goes for stuffing.Therefore, in the area of daily maintenance, self-balance is dominant.
2. overhaul difficulty, the old multistage pump is superior
When the pump has been running for many years, there is a big problem that needs to be dismantled and overhauled, the situation is different. Since the self-balancing multistage pump is more complex in structure than the ordinary multistage pump, under normal circumstances, the user unit even if it has a maintenance team, it does not have the ability to disassemble and overhaul, that is, we often say: the disassembly can not be installed. Therefore, it must be returned to the factory for maintenance.
The traditional multistage pump overhaul is relatively simple, its structure is simpler than self-balancing, and the overall difficulty of disassembly is lower than self-balancing. Therefore, from this level, the difficulty of disassembly is the disadvantage of self-balancing multistage pump, or the disadvantage of self-balancing multistage pump.
3.maintenance frequency, self-balancing multi-stage pump is dominant
The hydraulic model and structural advantages of the self-balancing multistage pump itself determine that the maintenance cycle (maintenance or overhaul) is superior to the old multistage pump, which is what we often say: not easy to break. If the water quality is good, it can reach 8000 hours of continuous stable operation.
How to say, self-balancing multistage pump and old multistage pump compared advantages and disadvantages, for example, is not very rigorous, just like the current fuel vehicle and new energy: new energy in daily maintenance and energy saving, the maintenance cycle is long and cheap, and the most important thing is to save money on electricity; However, once the electric car has a problem and needs overhaul, it is more troublesome, in addition to going to the 4S shop or returning to the factory there is no other way. Fuel cars, on the other hand, are not so picky, and you can just go to a reliable street repair shop.
What specific car to drive (what pump to use), is the need to combine their own actual needs, can not be generalized. Well, about the self-balancing horizontal multi-stage centrifugal pump in the end is good to discuss this, if you want to further learn more about the self-balancing multi-stage centrifugal pump, welcome to click the following link, visit our company's official website, learn more about the pump products and knowledge, finally, Xiaobian for a concern and collection, sell a adorable.