Digital metering pump delivery system and method based on multi-parameter feedback collaborative regulation

The digital metering pump system, through multi-parameter feedback and coordinated control, monitors and clears blockages in the one-way valve assembly in real time, solving the clogging problem of metering pumps when handling complex fluids and ensuring the continuity of fluid delivery and metering accuracy.

CN122328313APending Publication Date: 2026-07-03ZHEJIANG DONGKAI PUMP TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG DONGKAI PUMP TECH CO LTD
Filing Date
2026-05-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

When existing metering pumps process fluids containing solid suspended particles, easily crystallizing fluids, or high-viscosity fluids, the one-way valve assembly is prone to adhesion and blockage, causing the flow rate to deviate from the set value. Furthermore, existing technologies lack online monitoring and cleaning methods, affecting metering accuracy and system operational stability.

Method used

The digital metering pump system, which adopts multi-parameter feedback and coordinated control, monitors the pressure drop of the check valve group in real time through a differential pressure sensor network. Combined with a rotary encoder and hydraulic system, it realizes online assessment and automatic cleaning of the flow resistance of the check valve. The scraping component removes the deposits inside the valve without affecting the accuracy of fluid metering.

Benefits of technology

It enables automatic clearing of one-way valve blockage without stopping the system or interfering with fluid metering accuracy, maintaining the continuity of fluid delivery and the stability of the system, and improving the reliability and long-term operation capability of the metering pump.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122328313A_ABST
    Figure CN122328313A_ABST
Patent Text Reader

Abstract

This invention relates to the field of metering pump technology and discloses a digital metering pump distribution system and method based on multi-parameter feedback collaborative control. The system includes a distribution module, a measurement and control module, and a self-cleaning module. The measurement and control module monitors the pressure drop data across the suction and discharge check valve groups via a differential pressure sensor network and calculates the real-time differential pressure deviation. The main control unit, combined with the stroke phase identified by the rotary encoder, drives the physical scraping actuator within the self-cleaning module to perform flexible contact scraping or transient strong impact peeling on the end face of the check valve group during the stroke when the corresponding check valve group is naturally closed, based on a threshold condition triggered by the differential pressure deviation. This invention utilizes the collaborative control of an asymmetric hydraulic unloading module and the power supply frequency to achieve automatic online removal of deposits inside the valve without stopping the system or interfering with fluid volume measurement, maintaining the long-term continuity and reliability of the system.
Need to check novelty before this filing date? Find Prior Art