State monitoring protection device
A protection device and status technology, applied in the field of measurement, can solve problems affecting the safety, stability, and long-term operation of large-scale units, increase intermediate equipment and fault occurrence points, and make it difficult to match instruments and device interfaces, so as to improve the setting/debugging /Control work efficiency, facilitate remote setting/debugging/control work, improve the effect of hardware/technical level
Inactive Publication Date: 2010-06-23
上海瑞视仪表电子有限公司
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[0014] So far, foreign/domestic manufacturers have researched/produced different types of measuring equipment in the measurement of speed and acceleration vibration systems in the large-scale rotating machinery and equipment industries such as electric power (thermal/hydraulic power plants), petrochemical, and metallurgy, but most of these equipment The tile vibration signal output by the collected sensor is simply amplified/remotely transmitted to the central monitoring device located in the control room, and then the central monitoring device performs signal regulation/conversion and provides it to the calculation/control module or unit for corresponding calculation, control, monitoring or data recording. Since the meas
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[0030] The present invention will be further described below in conjunction with the accompanying drawings.
[0031] figure 1 Among them, the tile vibration monitoring protection channel of the device includes at least one MCU module for control and data processing; the input signal passes through the signal input module, the common mode suppression module, the isolation module, the amplification and the first high and low pass filter module, The integral module, the second high and low pass filter module, and the A / D conversion module are sent to the MCU module; after the input signal is processed by the MCU module, one is output to the voltage fine-tuning module by the D / A conversion module to form a voltage output signal; the other One channel is converted by U / I to form a current output signal; the MCU module directly outputs one channel of alarm signal output; the result of data processing by the MCU module communicates with the host computer through the data interface. ...
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Abstract
The invention relates to a state monitoring protection device, which belongs to the field of measurement. The state monitoring protection device comprises a sensor. The invention is characterized in that: the sate monitoring protection device is a three-wire loop dual-channel transducer which transforms a bushing vibration signal acquired by a sensor system into a corresponding signal of between 4 and 20mA; the signal can be directly output to a fault diagnosis system, a DCS system, a paperless recorder and/or an equipment monitoring instrument; the state monitoring protection device carries out data communication with an upper computer by a data interface; and the user can carry out configuration programming on the state monitoring protection device by the upper computer, and also can externally arrange a relay module by a chassis to flexibly select a logical approach protected by the relay. The state monitoring protection device can transform the signal acquired by the sensor system into a standard instrument signal, has the function of intelligent data analysis/processing, has remote communication function, and can be widely used in the measurement/monitoring field of various bushing vibration (speed/intensity) monitoring systems.
Description
technical field [0001] The invention belongs to the field of measurement, and in particular relates to a state monitoring and protection device for a large operating unit. Background technique [0002] The equipment system of modern industrial mass production has the characteristics of continuous, high-speed, complex, large-scale, and high degree of automation. Therefore, when an unforeseen failure occurs, it will cause huge downtime losses. If predictive maintenance is achieved, the equipment system can be operated efficiently, safely, reliably and at low cost. [0003] Equipment failures can usually be divided into two types: lifetime failures and sporadic failures. [0004] Uniform wear occurs when the equipment is operated under the allowable working conditions. When the wear exceeds the specified value, a life-time failure will occur. The time of this failure can usually be predicted, and its ability can be restored through regular replacement, repair, and transformati...
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Inventor 徐健
Owner 上海瑞视仪表电子有限公司
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