Equipment fault diagnosis system-

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Product name：Equipment fault diagnosis system

Details

EMT690 system is particularly applicable to all kinds of mechanical equipment in the industrial field, such as steam turbine, compressor, motor, fan, water pump and other off line vibration monitoring, analysis and fault diagnosis. The system has a strong real-time vibration acquisition and fault analysis function, the field single and double side dynamic balance function, AC induction motor fault diagnosis expert system function. Through it, can quickly and fully grasp the running state of the equipment, predict and diagnose equipment fault, to ensure the safe and stable operation of the equipment.

The system uses the latest hardware design method, by brand notebook computer (model optional) sensor and light collection box and reliable and durable (vibration acceleration sensor, photoelectric speed sensor, clamp current transducer) and other components, components with high reliability, flexible, very suitable for field use; all Chinese function software package WINDOWS version consists of three modules: real-time analysis of vibration fault diagnosis software can analyze the mechanical fault diagnosis by vibration, AC motor diagnosis expert induction automatic diagnosis system AC inductor motor rotor fault and dynamic eccentricity fault with current spectrum, dynamic balancing software helps realize dynamic balance of unbalanced rotor.

This system has been widely used in electric power, petrochemical, metallurgy, railway, machinery processing, water treatment and other industries, by the universal welcome of the user units.

[system function]

Analysis of vibration fault diagnosis function.

Perfect database management: including equipment management, measurement point management, data management, report management;

Strong print function: the spectrum of real-time print, a variety of data reports, the trend analysis of print

Trend analysis function: to the peak value, the effective value, 1 *, 2 *, 3 * and so on the multi band carries on the tendency analysis, forecast the equipment operation condition;

Real time vibration acquisition and analysis;

Strong vibration analysis function

Time domain analysis: including time-domain waveform, probability density, autocorrelation analysis, cross correlation analysis, real-time display of the dimensional parameters (peak value, average value, effective value) and non dimensional parameters;

Spectrum analysis: including amplitude spectrum, log spectrum, phase spectrum, the analysis of the inverse spectrum, real-time display of the ten maximum spectral peaks and corresponding frequency;

Average analysis: time domain synchronous average, time domain average spectrum, frequency domain average spectrum;

Three dimensional analysis: three dimensional spectrum of time and speed three dimensional spectrum (starting and stopping analysis);

Axis analysis: through the connection with the online sensor, you can do the axis trajectory, two-dimensional holography, holographic spectrum analysis.

Through the above vibration analysis function can be diagnostic equipment all rotor fault (basic loose and uneven, wrong, shaft bending, axial crack, resonance, surge, oil film vortex motion, oil film oscillation, rotating stall, rotor and static friction, rotor interference with too surplus and deficiency, seal and gap dynamic instability), bearing fault (bearing wear, pitting corrosion of bearings, bearing short of oil), gear box failure (wear gear, eccentric gear, gear tooth pitch error too large) and a variety of mechanical fault.

The expert system for fault diagnosis of induction motor function

The software module with the function of the expert system, the automatic diagnosis of large and medium-sized AC asynchronous induction motor rotor fault, rotor broken bar, rotor end ring faults and rotor joint resistance, cast aluminum rotor casting gap and bubble, winding rotor side brazed joints) and asynchronous (or synchronous) induction motor stator and rotor eccentricity fault (uneven air gap, magnetic force imbalance, mechanical imbalance, rotor thermal bending, bearing wear). The system is used in the normal operation of the motor (without stopping), using the current sensor to detect the motor's operating current (low voltage motor detection main circuit, high voltage motor to detect the two circuit). Through the current spectrum analysis, the fault diagnosis report is automatically given, the fault severity, fault development trend, and the maintenance measures are proposed, and the reliable operation time of the motor can be predicted.

The scene of single and double dynamic balance function

By using the original installation conditions, the trial weight balancing method and influence coefficient balance method are provided to balance the equipment. Once operation, the amount of equipment can be reduced by more than 90%, and allows for a number of balance, until satisfactory. For vector decomposition, vector synthesis, easy installation of the counterweight. The greatest advantage of this feature is to provide you with a simple, reliable and effective method, the real scene to achieve dynamic balance, saving time, manpower and funds.

[technical index]

Channel: 2/4/8 channel + speed channel

Sampling: 2/4/8 channel simultaneous sample and hold

Coupling mode: AC, DC

Sampling points: 256, 512, 1024, 2048, 4096, 8192, 16384, 32768

Frequency range: DC ~ 50KHz

Line number: 100, 200, 400, 800, 1600, 3200, 6400, 12800

Trigger: internal trigger and external trigger

Trigger mode: free trigger (no trigger), single trigger, repeated trigger

Range: + 30V (DC) + 3.3V ~ + 0.01289V a total of 9 files (AC)

Low pass filtering: do not add, 600Hz, 1KHz, 2KHz, 3 KHz, 4 KHz, 5 KHz, 6 KHz,

7 KHz, 8 KHz, 9 KHz, 10 KHz, 11 KHz, 12 KHz, 13 KHz,