Fuzzy control method for revolution speeds of high-pressure diaphragm pumps

A high-pressure diaphragm, fuzzy control technology, used in pump control, liquid variable capacity machinery, machines/engines, etc., can solve problems such as pipeline vibration, and achieve the effect of eliminating synchronization errors, improving synchronization accuracy, and good instant response.

Inactive Publication Date: 2015-11-25
GUIYANG AL-MG DESIGN & RES INST
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  • Abstract
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Problems solved by technology

[0004]The purpose of the present invention is to provide a fuzzy control method for the speed of high-pressure diaphragm pumps to solve the phenomenon of pipeline vibration caused by the superposition of the peak value of the slurry flow

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  • Fuzzy control method for revolution speeds of high-pressure diaphragm pumps
  • Fuzzy control method for revolution speeds of high-pressure diaphragm pumps
  • Fuzzy control method for revolution speeds of high-pressure diaphragm pumps

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings, but not as any limitation to the present invention.

[0015] A high-pressure diaphragm pump speed fuzzy control method of the present invention is that the method adopts the diaphragm pump fixed rotation angle difference control system to strictly maintain all pumps at a constant rotation angle difference synchronous relationship, and can maintain the synchronous speed relationship. In the same pulse period Inside, the initial position of the rotation angle of each pump is strictly coordinated, and the set rotation angle difference is maintained. The fixed rotation angle difference control system of the diaphragm pump adopts a master-slave control structure, and the crankshaft rotation angle and speed of the first diaphragm pump are used as the pump group The rotation angle and rotation speed of each motion axis drive motor are given as reference.

[0016] ...

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Abstract

The invention discloses a fuzzy control method for the revolution speeds of high-pressure diaphragm pumps. According to the method, on the premise that a diaphragm pump fixed revolution angle difference control system is used for strictly keeping all the pumps at a constant revolution angle difference synchronous relation, a synchronous speed relation is kept, during the same pulse period, revolution angle initial positions of all the pumps are strictly coordinated, and a set revolution angle difference value is kept. According to the diaphragm pump fixed revolution angle difference control system, a master-slave control structure is adopted, crank angles and the revolution speed of the first diaphragm pump are used as given references of revolution angles and revolution speeds of all moving shaft driving motors of the pump set. According to the method, the output frequency of a frequency converter is determined by analyzing input motor speed deviations and a deviation change rate, and therefore the speed of slave motors is adjusted, and the slave motors have good following performance to main motors. By means of the solution, the anti-disturbance performance of a system with the multiple high-pressure diaphragm pumps is improved, and the system has instant responsiveness and good stability.

Description

technical field [0001] The invention relates to a fuzzy control method for the rotational speed of a high-pressure diaphragm pump, and belongs to the technical field of mechanical equipment control. Background technique [0002] Diaphragm pump is one of the key equipment for medium and long-distance pipeline transportation in alumina enterprises. It combines the advantages of high output pressure, firmness and durability of piston pump, simple structure and corrosion resistance of diaphragm chamber, etc., and overcomes the problems of easy wear and tear of piston pump seals. The diaphragm chamber itself has no lack of power source, and can obtain high discharge pressure, and the flow rate has nothing to do with pressure. It is suitable for a wide range of conveying media, has good suction performance, and high efficiency. It is a replacement product for other pumps. play a vital role. [0003] In recent years, with the development of large-scale pipeline transportation equi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
Inventor 江久适
Owner GUIYANG AL-MG DESIGN & RES INST
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