环保采暖锅炉讲解给水泵和潜水泵的特点
    2014-6-17 10:10:20  文章来源:http://www.jnlzsb.com
    给水泵的滑销系统由两个纵销和两个横销组成。两个纵销布置在进水段和出水段的下方。纵销确保给水泵在热胀冷缩过程中,中心线在横向不发生变动,同时不妨碍泵在轴向和垂直方向上的热胀冷缩。两个横销布置在进水段支承爪下面。横销2与进水段下方的纵销1形成了给水泵的死点,使给水泵膨胀时的方向是向出水侧。
    For the sliding pin system pump consists of two vertical and two horizontal pin pin. Two longitudinal pin arranged below the water inlet segment and a water outlet section. Longitudinal pin to ensure that the water pump in the process of expansion and contraction, the central line of the transverse does not change, but does not interfere with the pump in the axial direction and vertical direction of thermal expansion and contraction. The two cross pin arranged in the inlet below the supporting claws. Cross pin 2 and the water below the longitudinal pin 1 formed dead center of the feed water pump feed water pump, the expansion of the direction of the water outlet side.
    潜水泵不需要安装和配管,放入水中即可工作,泵出口通常采用胶皮管将水送至地面。不需要安装底阀,启动前也不要注水排除空气,使用非常方便,但对电动机和接线盒的密封性能要求很高,不得有水漏入其中。
    Submersible pump does not require installation and piping, into the water to work, the pump outlet usually adopts the rubber tube will be sent to the ground water. Do not need to install the valve, before starting the also don't water injection to exclude air, very convenient to use, but for the motor and the junction box sealing performance requirements are very high, no water leakage into the.
    当水泵处于真空吸上状态时,不但要设底阀,泵启动前要注水排除空气,操作比较麻烦,而且受泵汽蚀余量的限制,入口水面不能低于水泵太多。当入口水面低于水泵较多时,就要采用深井泵。深井泵的叶轮在水面之下或在水面附近,而电动机在地而,电动机通过长轴与泵相连,因此,探井泵不但安装较麻烦,而且深井泵的造价较高。

    When the water pump in the vacuum state, not only to the end of the valve, the exclusion of air to water pump before the start, operation more trouble, but also by the pump NPSH restrictions, entrance surface can not be lower than the pump too much. When the entrance surface below the pump more, like a deep well pump. Deep well pump impeller in the water below or near the surface, while the motor in the motor shaft, connected to the pump, the pump is not only so, well installation is more troublesome, but the high cost of deep well pump.

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