We are very common as a hot oil pump, we like to introduce the hot oil pump seal and how to reduce the temperature of the hot oil pump, hot oil pump seal as long as it includes the following four: (1) single-end seal: using infusion flushing , Flushing fluid for about 100 ℃ minus second-line wax, the pressure higher than the sealed cavity 0.05 ~ 0.15Mpa. Gland outside with hot water (soft water) for hot oil pump cold. Generally can use a cycle (ten months). (2) metal bellows machine seal: compact structure, easy installation, in the case of the same auxiliary system, life expectancy of 2 to 3 times the normal seal. (3) double-end machine seal: the use of circular washing, plus external cooling, life is single 1.5-2 times. (4) The choice of hard and soft friction pairs (YG6 / YG8, SiC / SiC, etc.), for high viscosity, medium containing a small amount of solid particles or crystallization of media, with good results. Hot oil pump is usually cooled by the following three methods: (1) domestic hot oil pump is set around the sealed chamber cooling water jacket, through the cooling water, can make the sealed chamber temperature is reduced to 200 ~ 250 ℃. (2) for single-end seal, the use of injection flushing, cleaning from the outside world, the temperature of 100 ° C wax oil (generally do not use diesel, because diesel is finished), both to reduce the temperature and improve the working environment, is the Effective way (3) gland outside the use of water quenching; In addition to reducing the temperature, but also to prevent the water pipeline blocked. Heat pump is a single stage, single-suction cantilever structure, with the bearing seat, the connection pipe connected to the pump hydraulic components, liquid from the discharge pipe parts, pump impeller half-open impeller, impeller inlet extension is provided with stirring The main characteristic of the pump is that the pump shaft in the submerged part of the liquid has sufficient rigidity. There is no bearing between the impeller and the pump casing, and the shaft seal can not be used to transport the medium containing larger depth solid particles. The length of the pump inserted into the liquid between 800-2000, if necessary, can be equipped with suction pipe. Shaft seal liquid submerged pump into the liquid run, no shaft seal, the drive motor mounted by a vertical motor support and bearing seat, the coupling with the pump.