Water pump control method

A control method and water pump technology, applied in pump control, mechanical equipment, machine/engine, etc., can solve problems such as incomplete detection and complicated control methods, and achieve the effects of saving labor, reducing labor intensity, and increasing reliability

Active Publication Date: 2015-01-07
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] At present, there are many control systems for water pumps on the market, but they

Method used

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Embodiment Construction

[0013] Below in conjunction with embodiment the present invention is described in further detail:

[0014] Due to the harsh geological environment often encountered during the foundation construction of power transmission lines, drainage is required for foundation construction. Usually, drainage wells are set around the foundation pit, and water pumps are used to complete the construction. During the pumping process, due to the lack of personnel Special care, the situation that the water pump burns often occurs. Even if a special person is sent to take care of it, the water pump is often burned due to the negligence of the caretaker, which brings a lot of trouble to the construction, which affects the progress and increases the cost.

[0015] In view of the above situation, the inventor carefully studied various characteristics in the operation of the water pump, carried out targeted treatment on the basis of the electrical operation characteristics, and adopted a scientific an...

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Abstract

The invention discloses a water pump control method. According to a water pump control system, a water pump is controlled by a PLC (Programmable Logic Controller) system; the PLC controls start and stop of the water pump according to three judgment conditions of a water pump running current signal, a water pump outlet pressure signal and a liquid level signal with a water pump running state being served as a basic condition; a collected signal is compared with a set parameter when the water pump runs and synthetic judgment is performed with the liquid level signal serving as a basic judgment condition and in combination with a pressure signal and a current signal. According to the water pump control method, whether water inside the water pump is pumped off or not is according to the three judgment conditions, safe running of the water pump and failure warning through a detection sensor are achieved under a condition that a standby detection sensor is not added, the system stability and reliability is increased through the redundancy PLC and a standby module, automatic control of the system is completely achieved, unattended operation is achieved, labor is saved, the labor intensity of workers is released, and the system is convenient and practical in foundation ditch drainage engineering of foundation construction.

Description

technical field [0001] The invention relates to a control method of a water pump and belongs to the technical field of drainage. Background technique [0002] Due to the long construction path of power transmission lines and complex terrain conditions, foundation construction often encounters harsh geological conditions such as puddles and muddy puddles. Drainage measures are required during foundation pit excavation, formwork support, and foundation pouring. At present, there are mainly two methods of drainage measures: internal drainage and external drainage. The internal drainage method is only suitable for geological conditions where the soil conditions are good and not easy to collapse; the external drainage method is used when the soil conditions are bad and the internal drainage method cannot solve the problem. Drainage wells are set around the foundation pit for external drainage. [0003] During external drainage, the pump in the drainage well must pump water conti...

Claims

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Application Information

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IPC IPC(8): F04D15/00
CPCF04D15/00F04D15/0077F04D15/02
Inventor 郭俊杰
Owner STATE GRID CORP OF CHINA
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