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Rotor vibration online self-cure regulation and control method capable of continuously adjusting flow rate

A technology of rotor vibration and adjustment method, which is applied in the direction of machines/engines, rotary piston type/oscillating piston type pump components, pump elements, etc., which can solve the problems of low reliability and poor flow adjustment accuracy, and achieve high overall reliability Effect

Inactive Publication Date: 2010-07-28
BEIJING UNIV OF CHEM TECH
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AI Technical Summary

Problems solved by technology

To change the problems of poor flow regulation accuracy and low reliability in the flow regulation system existing in the current self-balancing system

Method used

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  • Rotor vibration online self-cure regulation and control method capable of continuously adjusting flow rate
  • Rotor vibration online self-cure regulation and control method capable of continuously adjusting flow rate
  • Rotor vibration online self-cure regulation and control method capable of continuously adjusting flow rate

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Embodiment Construction

[0016] Specific embodiments of the present invention are described below in conjunction with accompanying drawing:

[0017] The invention as image 3 In the three-cavity balance head shown, three peristaltic pumps can inject liquid into it respectively. According to the measured unbalance information, calculate the cavity that should be injected and the flow that should be injected, and control the speed of the peristaltic pump, so as to control the size of the unbalance on-line in real time until a satisfactory control effect is achieved.

[0018] The method can achieve fault self-healing by adjusting flow rate and quality according to the measured fault state feedback signal. The control method of the system is as figure 1 shown. A new type of small flow regulation system is constructed by using a small flow pump group, and this system has the ability of fault self-healing. Specifically, if one of the two traffic flows in normal operation fails, the device that is curren...

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Abstract

The invention relates to a rotor vibration online self-cure regulation and control method capable of continuously adjusting a flow rate. The method comprises the following steps of adjusting the outlet flow of a small flow pump connected with each chamber body of a balance disc in real time according to a vibration signal detected by a sensor and controlling mass distribution of the balance disc, which comprises determining the influence coefficients of a rotor system; determining the phase of the oscillation produced by liquid inside the chamber when each chamber of the balance disc is filled with the liquid; converting the vibration produced by each chamber into the unbalance phase produced by the liquid by using the influence coefficients; measuring displacement or acceleration in real time to acquire an amplitude and the phase of the rotor vibration, and determining a liquid injection chamber and a liquid injection amount of the unbalance; converting the liquid injection amount into the rotation speed of the corresponding small flow pump, and controlling the pump to output the liquid into the corresponding liquid injection chamber on the balance disc; and calculating in real time and continuously adjusting the outlet flow of the pump till the rotor vibration reaches a safe range. If one of the two ways of flow rates has a failure, an idle device can be used for working so as to compensate the failure device.

Description

technical field [0001] The invention relates to an on-line self-healing control method for a rotor that can continuously adjust the flow rate. When the rotor vibrates, the flow rate entering the balance plate can be controlled by adjusting the rotation speed of the micro-flow pump, so as to achieve the purpose of controlling the unbalanced amount. It is suitable for some systems that are prone to rotor imbalance, such as super gravity machines, etc. Background technique [0002] The rotor active balancing technology is a typical self-healing control system, which has great potential in improving the economical use of production equipment and improving equipment and personal safety. The concept of online automatic balancing was first proposed by Vegte in 1964. He reported in 1978 that he adopted the method of moving the unbalanced ring gear in the circumferential direction to adjust the design of the unbalance, and used it to do an online balance experiment. In 1982, Bishop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C15/00
Inventor 高金吉李燕党开放王维民
Owner BEIJING UNIV OF CHEM TECH
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