Soda acid centrifugal pump is right of sealed requirement discuss

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Soda acid centrifugal pump is one kind is had anticorrosive centrifugal pump, average capable person has fluorine character plastic with stainless steel, Centrifugal pumpUse machine normally sealed, mechanical and sealed it is to move sealed be united in wedlock with static sealed photograph, soda acid centrifugal pump runs for long in the course, how should be leak of mechanical and sealed generation solved, sealed happening leak can bring a lot of troubles to production, solve sealed leak to must understand mechanical and sealed principle and leak reason first, when people is analysing reason of mechanical and sealed leak, the habit seals oneself respect to search an account in machinery, for instance: Its type selecting is appropriate, material choice is right, of sealing surface more correct than pressing. Attrition fit choice is logical, upright lid and axis are vertical etc, and search an account rarely in mechanical and sealed exterior condition respect, mechanical and sealed external cause is quite actually main also, for instance: The condition that pump gives machinery sealed creation is appropriate, the configuration of support system is proper wait.
One, mechanical and sealed principle and requirement
Mechanical and sealed department shows two sealed component are in its are perpendicular the bright and clean and flat apparently mutual joint at axes, make the seal unit that turn relatively and forms, he normally You Jinghuan, move annulus, bedspring to add unit of carry on one’s shoulder (include to turn ring, bedspring box) auxiliary sealing ring (the sealing ring that move link, static annulus sealing ring) wait for component composition, prevent turn set inside prevent turn sell fixed and outer gland to go up, in order to prevent static annulus roll. The end panel partner that moves annulus and static link among them chafes deputy, move annulus to rely on pressure of sealed and indoor liquid to make impaction of its end panel is on static annulus end panel, produce proper more paper-thin than press and maintaining liquid film on two annulus end panel and achieve sealed, because this looks from the structure, machinery is sealed and main be its the axial of extremely easy let out is sealed, the end panel that the change is not easy leak is sealed, mechanical and sealed in running a course actually, not be an alone component, it is with its his component combines those who move together, through its at the same time fundamental can see, mechanical and sealed move normally must have the following requirement:
1, the pump shaft deflection of mechanical and sealed place wants small, satisfy only similar such external cause, plus performance of good mechanical and sealed oneself, ability achieves ideal sealed result.
2, the change of pump shaft is measured cannot too big.
2, influence pump uses mechanical and sealed exterior account
1, the deflection of pump shaft slants big
The axis curves the cross section when be out of shape form heart calls deflection along the displacement of the lines of as perpendicular as axes direction, mechanical and sealed requirement gets power between two seal face even. But as a result of pump of products plan unreasonable, the deflection that is in generation in mechanical and sealed installation slants big, make sealed place gets power inhomogenous, lose sealed effect thereby. This kind of phenomenon is put in horizontal multistage centrifugal pump mostly.
2, vibration slants to be reached greatly eliminate step
Mechanical and sealed vibration slants often is not the reason of mechanical and sealed oneself greatly, however pump shaft designs precision of unreasonable, treatment the parallelism of annulus of insufficient, back of a chair slants the reason such as big, radial muscularity, eliminate pump vibration measure to have: The auxiliary equipment such as pipeline of pump, electric machinery, base, spot is when field assembly, want to guard a pass strictly, eliminate oscillatory source.
3, the axial change quantity of pump shaft
Sealed sealing surface should have machinery to be compared certainly pressure (0.4 ～ 0.6MPa) , achieve sealed goal thereby, the close together and close together degree of two end panel can pass bedspring adjustment. Press to make sure this is compared, requirement pump shaft cannot have too big change to measure (<0.5mm) , but in be being produced actually, often the change amount with pump shaft very large generation. Very adverse to mechanical and sealed use, this kind of circumstance divides plant performance to be in the pump process that start in me, as a result of the existence of lopsided axial force, the change that makes whole axis happens to air suction opening is moved, create machine sealed lose sealed action, commonly used measure has: Balance hole opens on impeller, pump housing jacket balances a canal to wait.
4, did not assist rinse a system or assist rinse a system the design is unreasonable
Machinery is assisted sealedly rinsing a system is very important, it can protect sealing surface effectively, arrive since cooling, lubricant, sweep sundry wait for action. Design staff sometimes the design is unreasonable, short of is sealed the effect; Some designed support system, but because rinse,is foreign matter in fluid, the discharge of strong lotion, pressure is insufficient, rinse buccal position the design is unreasonable wait for a reason, as much short of effect.
Thank you to be mixed to the visit of above content very much read! This information is about soda acid centrifugal pump is opposite the introduction of sealed requirement, if you still want to have farther knowledge to this problem, or want to buy this relevant product, contact personnel of my company customer service directly please, my company still produces fire pump, welcome you at any time seek advice.