Liquid pump control system

A technology of control system and liquid phase pump, applied in pump control, liquid variable capacity machinery, machine/engine, etc., can solve the problems of emergency stop without overpressure alarm, liquid leakage detection fault judgment, single communication method, etc. To achieve the effect of convenient operation, sensitive control, high flow accuracy and stability

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Problems solved by technology

[0004] The purpose of the present invention is to propose a liquid phase pump control system in view of the problems that the existing liquid phase system has a single communication mode, does not have overpressure alarm emergency stop and liquid leakage detection fault judgment

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  • Liquid pump control system
  • Liquid pump control system
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 , 2 Shown, a kind of liquid-phase pump control system is characterized in that it comprises a plurality of pressure acquisition modules, a plurality of leakage detection modules, a plurality of A / D conversion modules, a main controller (using a micro single-chip microcomputer, the model can be CPU: C8051F120), a plurality of liquid phase pump motor control modules (the model can be 57BYG350DL) and communication modules, the pressure acquisition modules and leakage detection modules described above are respectively used as the pressure and leakage signal input terminals of the liquid phase pump control system to collect corresponding The pressure and leakage signal of the liquid phase pump, the signal output terminals of each pressure acquisition module and the leakage detection module are connected with the corresponding signal ...

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Abstract

The invention relates to a liquid pump control system which comprises a plurality of pressure acquisition modules, a plurality of liquid leakage detection modules, a plurality of A/D (Analog/Digital) conversion modules, a main controller, a plurality of liquid pump motor control modules and a communication module, wherein the pressure acquisition modules and the liquid leakage detection modules are respectively used for acquiring the pressure and liquid leakage signals of the corresponding liquid pump, the outputs of the pressure acquisition modules are connected with the input end of the corresponding A/D conversion module, and the output of each A/D conversion module is connected with the corresponding input end of the main controller; each output end of the main controller is respectively connected with the signal input end of each corresponding liquid pump motor control module, the output of each liquid pump motor control module is used for controlling the working of a motor of the corresponding liquid pump, and the main controller communicates with an upper machine through the communication module. The liquid pump control system can be simultaneously applied to multiple pump systems, is flexible to control and high in response speed and convenient to operate by customers and select suitable control systems, circuit sharing is realized in production, and the production cost is reduced.

Description

[0001] technical field [0002] The present invention relates to the fields of liquid phase analysis and liquid phase preparation, in particular, the liquid phase pump has an overpressure alarm emergency stop, liquid leakage detection fault judgment and two or more communication methods based on an integrated functional control system, specifically a kind of Liquid phase pump control system. Background technique [0003] At present, in the liquid phase analysis and liquid phase preparation, the control of the pump is required to be more and more precise. However, the existing liquid phase manufacturers all use RS232 to communicate with the upper computer in the liquid phase system to realize one-to-multipoint communication. In addition, there are few overpressure alarms, emergency stops, liquid leakage detection fault judgments and two More than one communication method and so on are based on integrated functions, and customers can choose the configuration that suits thei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
Inventor 张治成
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