Heat transfer oil pump, is the delivery of high temperature oil pump, generally do not centrifuge, so easy to heat oil vaporization, anger chamber, the pump impeller damage generally with screw, gear type. Hot oil pump is an ideal hot oil circulation pump or as a heat transfer pump, heat exchange equipment is the ideal matching pump. For the cooling of the hot oil pump can take a lot of ways First of all, we must analyze the hot oil pump sealing structure which, according to different sealing structure using different cooling methods. The heat pump seal structure mainly has the following four structures: (1) single-end seal: the use of injection flushing, flushing fluid for about 100 ℃ minus second-line wax, the pressure higher than the sealed cavity 0.05 ~ 0.15Mpa. Gattern outside with hot water (soft water) for rapid cooling. 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 the media have a good effect. According to the above sealing structure Let us Analysis of the following hot oil pump cooling (1) hot oil pump in the sealed chamber around the cooling water jacket, through the cold water cooling, the sealed chamber temperature can be 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. Of course, in addition to these there are many other ways, which requires us to pay attention to different cooling methods may reach different results when we use it in peacetime. We can pay attention to this when we use, as well as Is to summarize his basic rules.
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