2016年11月3日星期四

Shanghai pump manufacturers to talk about the structure and cooling form of centrifugal pump

In the use of centrifugal pumps, we will reduce the centrifugal pump sealing temperature to improve the efficiency and service life of centrifugal pumps, the following by our Shanghai pump manufacturers to say,
    First of all, we say that the centrifugal pump seal structure
    1, single-ended centrifugal pump seal: the use of injection-type washing, washing liquid is about 100 ℃ by the second line of wax oil, the pressure than the sealed cavity high 0.05-0.15Mpa. Gland outside the use of hot water (soft water) for rapid cooling. One cycle (ten months) can be used in general.
    2, centrifugal pump metal bellows seal: compact, easy to install, in the case of the same auxiliary system, the life of 2-3 times the normal seal.
    3, centrifugal pump double-end mechanical seal: the cycle of washing, plus external cooling, life is single-sided 1.5-2 times.
    4, centrifugal pump friction pair selection hard to hard (YG6 / YG8, SiC / SiC, etc.), high viscosity, with a small amount of solid particles of the medium or crystallization of the media, have a good effect.
    Then we talk about the centrifugal pump cooling form.
    1, domestic centrifugal pump in the sealed chamber around the cooling water jacket set to cool the water, can seal the chamber temperature is reduced to 200-250 ℃.
    2, on the single-ended seal, the use of injection-type cleaning, from the outside lead clean, the temperature of about 100 ℃ wax oil (usually without diesel, because diesel is finished), both reduce the temperature and improve the working environment is effective Approach.
    3, gland outside the use of quench water; in addition to lower temperatures, but also to prevent clogging sewer.

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