The transportation of high-temperature medium puts increased prerequisites within the framework, products and auxiliary method with the pump. Let us discuss the cooling demands of various temperature variations and the organization's applicable pump form:
one. For media with a temperature reduced than one hundred twenty°C, there is frequently no Distinctive cooling method, as well as the medium by itself is employed for lubrication and cooling. Which include DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (security level of shielded motor ought to exceed H quality when more than 90°C); and DFCZ frequent variety and IH chemical pump can use temperature to undertake suspension framework The higher Restrict is a hundred and forty°C ~ a hundred and sixty°C; IHF lining fluorine pump can be employed up to 200°C; only CQB ordinary magnetic pump use temperature doesn't exceed 100°C. It really is well worth mentioning the medium mixed flow pump that is not difficult to crystallize or has particles really should be Geared up that has a sealing area flushing line (intended having an interface).
two. For mediums earlier mentioned a hundred and twenty°C and underneath three hundred°C, a cooling chamber shall be presented about the pump protect. The sealing chamber shall also be connected to the coolant (with double mechanical seal), once the coolant isn't allowed to penetrate into the medium. It ought to be taken just after cooling its individual medium (is often recognized by basic heat exchanger).
3. For high temperature medium higher than three hundred°C, not simply the pump head portion should be cooled, but additionally the suspension bearing chamber ought to be equipped with a cooling procedure. The pump framework is usually in the form of the central aid. The mechanical seal is ideally a steel bellows kind, but the price is significant ( The cost is over 10 situations that of a traditional device seal).