Analysis and Solution of Mini Submersible Pump Faults

Miniature submersible pump uses the principle of synchronous motor, the motor to do directional rotation movement and with the end cover impeller are used non-directional mode of operation, its work is characterized by low noise, high efficiency, small size Sealed water pump. With the rapid development of China's pump industry, mini submersible pump at work prone to failure and solutions have also been with many people's attention. Miniature submersible pump failure analysis and solutions First, no water after start-up: Failure Analysis: 1, cable breakage; 2, plug damage; 3, cable pressure drop is too large; solution: 1, switch to high-lift pump, or Reduce the head of the pump; 2, find the break point and connect the cable; 3, replace or repair the plug; Second, the water is too small: Failure Analysis: 1, filter plugging; 2, impeller circulation partially blocked; 3, Turn to wrong; Solution: 1, replace the impeller or mouth ring; 2, deepen the diving submersible pump depth; 3, to reduce the head; Third, the pump suddenly does not turn: Failure Analysis: 1, pump two-phase operation; Pump reverse operation; 3, the transmission of liquid density increases, causing the current increase; Solution: identify the protection switch trip or fuse the specific causes, and then the right medicine, to be adjusted and excluded; Fourth, the stator winding burnout: Failure Analysis: 1, the end of the stator winding pump shell, and the ground breakdown; 2, electric pump open, stop too often; 3, submersible pump dehydration running time is too long; Solution: 1, Really electric pump cable in the ground wire connected to the power grid ground or temporary ground wire; 2, in time to find out the reasons, connected to the power phase line, or replace the cable; 3, often check the submersible pump Of the insulation resistance, the insulation resistance drops, the timely manner to take measures to maintain; each product in use, there will inevitably be some use and function is the problem, but with the continuous use of the product and update, the use of the product failure Constantly improved, mini submersible pump is a very good proof. Through the above summary and analysis, we can clearly understand that miniature submersible pump in use there will be some problems, but we can find a reasonable solution, I believe that as technology advances, such products will be more Suitable for production.

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