Submersible pump control circuit and device
A technology for controlling circuits and submersible pumps, applied in pump control, pump devices, pumps, etc., can solve problems such as damage to submersible pumps, poor safety, and inability to see the water level of submersible pumps
Pending Publication Date: 2019-11-19
中华人民共和国宁德海关
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Problems solved by technology
[0002] In various civil infrastructure facilities, dewatering works are often required, and dewatering works need to use submersible pumps to pump water to the outside. When the submersible pump is working, the submersible pump is submerged in the water, and the water level of the submersible pump cannot be seen. If it is too low, the submersible pump will be damaged if it continues to work, and the safety is poor. Manual inspection cannot guarantee the normal operation of the submersible pump. There are often valves on the pipeline of the submersible pump, and the opening and closing of the valve cannot be associated with the start and stop of the submersible pump.
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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implement...
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The invention provides a submersible pump control circuit and device. The submersible pump control circuit comprises a submersible pump, a protection circuit, an automatic control circuit, a switchingcircuit and a power supply; an input end of the power supply of the submersible pump is electrically connected to an output end of the protection circuit, an input end of the protection circuit is electrically connected to the power supply, the protection circuit is electrically connected to the switching circuit, and the automatic control circuit is electrically connected to the switching circuit; and the automatic control circuit is used for automatically controlling start and stop of the submersible pump according to a water level signal and a pipeline pressure signal of the submersible pump. According to the submersible pump control circuit and device, the start and stop of the submersible pump can be controlled by opening and closing a pipeline of the submersible pump; and by arranging a water level switch, the submersible pump is prevented from being damaged due to dry pumping of the submersible pump.
Description
technical field [0001] The invention relates to the field of automatic control, in particular to a submersible pump control circuit and device. Background technique [0002] In various civil infrastructure facilities, dewatering works are often required, and dewatering works need to use submersible pumps to pump water to the outside. When the submersible pump is working, the submersible pump is submerged in the water, and the water level of the submersible pump cannot be seen. If it is too low, the submersible pump will be damaged if the submersible pump continues to work, and the safety is poor. Manual inspection cannot guarantee the normal operation of the submersible pump. Valves are often arranged on the pipeline of the submersible pump, and the opening and closing of the valve cannot be associated with the start and stop of the submersible pump. Contents of the invention [0003] In view of this, the present invention discloses a submersible pump control circuit and d...
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IPC IPC(8): F04D15/00F04D15/02F04D13/08
CPCF04D13/08F04D15/00F04D15/0022F04D15/0209F04D15/0218
Inventor 叶德住李亦滔汤绍钊雷奶华
Owner 中华人民共和国宁德海关