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    抽沙船:抽沙泵出口压力过小的原因及解决方法
    抽沙船:抽沙泵出口压力过小的原因及解决方法 抽沙泵出口有压力但是压力小于正常值范围时,我们应该检查一下是否有以下几个原因:
    1、抽沙泵长期没有运行,使得叶轮、密封部位粘结,造成电机堵转;开机前应盘动沙泵,确认转动灵活再启动。
    2、抽沙泵本身缺陷,盘动时候出现死点,此事时应解体检查沙泵的零部件是否有损坏情况,并及时更换损坏零件。

    3、电气故障,检查电机及线路有无缺相故障,保护系统有无误动作,保证电力系统频率到正常值后试机。

    挖沙船

    没有压力可能为以下情况:
    1、管路泻压,可能为管路的某个部位有泄露造成泻压,从而使系统压力减小;可以关闭吸沙泵出口阀门,检查压力情况。
    2、缺水,管道内水源不足也是压力不足原因之一,多是由于吸沙泵施工环境中有垃圾或杂草淤堵管路进口,此时开机后能听到水泵噪音很大,逐渐关闭出口阀门这种声音会逐渐减小。清理吸沙泵过滤网上的淤堵并提高工况水位。

    3、叶轮腐蚀或者叶轮口环磨损;更换沙泵叶轮。

    抽沙船

     Pumping vessels: The reasons for the excessive outlet pressure of pumping sand pump and the solution to the pump outlet pressure but the pressure is less than the normal range, we should check whether there are several reasons:
    1, pumping sand pump has not been running for a long time, so that the impeller, sealing parts bonding, causing the motor to plug the switch;
    2, pumping sand pump itself defects, when it appears dead point, this event should be dissolved to inspect the sand pump parts for damage, and timely replacement of damaged parts.
    3, electrical failure, check the motor and line there is no fault, the protection system has the correct action, to ensure the power system frequency to normal after the test machine.
     No pressure may be the following:
    1, the pipeline is leaking pressure, may be a part of the pipeline leakage caused by reducing pressure, thereby reducing the system pressure; can shut down the suction pump outlet valves, check the pressure situation.
    2, lack of water, the pipeline of water shortage is also one of the reasons for pressure, many is due to the sand suction pump construction environment There is garbage or weed blockage pipeline imports, at this time after the boot can hear the pump noise is very large, gradually shut down the export valve this sound will gradually decrease. Cleaning up the suction sand pump filter on the net and improve the water level.
    3, impeller corrosion or the impeller ring wear, replace the impeller pump.



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