Before the use of fire pump, only all aspects of the sealing work can be used, because the pump is mainly with the help of pressure and other forces to complete its pumping, suction and other work. One of the conditions for performing these operations is good sealing. If there is no good sealing, it is easy to leak, so the use of equipment will be affected. What are the pump seals for this equipment?Fire Pump Equipment
1, packing: by the form of shaft seal water injection, kept inside the packing will certain pressure of water injection,Fire Pump Equipment to prevent fire pump pump body slurry leaking: pay for impeller shaft seal is not suitable for using multilevel series pump, need to use the shaft seal packing, and packing seal structure is simple, convenient maintenance, cheap, let people easy to accept.
2, pay impeller seal: is operated by a reverse centrifugal force impeller force, so as to prevent the occurrence of slurry leakage. In the pump inlet positive pressure value than the pump outlet pressure value is small, single stage fire pump pump or multistage pump can use the impeller shaft seal, and auxiliary impeller shaft seal has no dilution of the slurry, no shaft seal water, good sealing effect and other advantages, so in the slurry is prohibited to have dilution of the case, can consider this seal.Fire Pump Equipment
3, mechanical sealing: usually used in the case of high sealing requirements.
These three groups of sealing forms have their own in common is strong sealing, in the use of the fire pump, because the equipment is sealed, so there will not be other random impurities into the pump, choose the appropriate sealing form can not only strengthen the pump seal, but also eliminate the occurrence of leakage phenomenon.
Post time: Sep-02-2022