Custom Sheet Metal Stamping Parts,Custom Metal Stamping Products,Custom Metal Stamping,Metal Stamping Parts NINGBO DAIKE INTELLIGENT TECHNOLOGY CO.,LTD , https://www.dakerhardware.com
Multistage pump axial force measurement
Multistage pump axial force measurement also uses the principle of resistance and strain, in the hollow shaft tensile cross-section mode IA paste the smallest cross-section of the strain gauge, using four overflow compensation foil-type strain gages, each of the two each into a group of 900 , Paste symmetrically. Strain gauge paste is mainly to eliminate the bending and vibration instability and other causes of sucker rod will cause hollow shaft partial bending deformation caused by additional strain, the measurement value and accuracy are greatly affected. Because when the hollow shaft bending deformation occurs, the torque, tension is completely independent, when the bending deformation of torque, tension will be coupled, the output of the independent voltage signal interfere with each other, will affect the accuracy of lit.
Speed ​​measurement
Speed ​​measurement methods are electromagnetic, mechanical, photoelectric and other children. Electromagnetic measurement accuracy but will produce electromagnetic torque, torque measurement to bring greater systematic error. Mechanical structure is simple but low accuracy. Photoelectric sensor using photoelectric detection of speed, with good linearity, high resolution, speed range and so on.
A hollow disk with a uniform grid is mounted on the hollow shaft of the sensor, and the photosensitive Hall sensor fixed on the outer grid of the code plate emits a light pulse when the code plate rotates with the shaft. The counter, during the sampling time, Make conversion count.
Non-contact DC power supply
The sensor power supply includes the stationary circuit of the housing DC power supply and the hollow shaft rotating part of the circuit DC power supply. Case static circuit DC power directly through the external cable power supply, hollow shaft rotating part of the circuit DC power supply through the static electromagnetic coil is located in the shell of the primary side of the high-frequency voltage sensor to the hollow shaft rotating part of the solenoid coil secondary side, rectified Pressure into the shaft of the circuit power.
Torque axial force pulse circuit and non-contact signal transmission
When the hollow shaft force, the torsion and axial force test circuit, respectively, the voltage output, the amplified and converted to a voltage-frequency pulse signal, the principle of the capacitor through the collector current collector ring 1, 2 pulse signal transmitted to the housing Quiet part, eliminating the slip ring and brush contact resistance measurement error and short life and other issues.
Speed ​​measurement signal transmission
The photosensitive Hall sensor light pulse signal amplified by shaping directly transmitted to the counter.
Supporting acquisition diagnostic system
The companion acquisition diagnostic system, using ADAM-4080 and ADAM-4521 controller and communication module signal acquisition device, through the RS-232 serial data transmission technology, and computer communication. In the meantime, it is simple and convenient to connect with aviation plugs. The signal collector on the scene is powered by rechargeable power supply or external power supply at the wellsite. The notebook computer adopts the configuration software to realize real-time data collection and diagnosis in the wellsite. The utility model has the advantages of small size, Light, easy to carry and so on. Acquisition software real-time monitoring of torque, speed, axial force and gives real-time curve, the data is automatically stored, playback. Diagnostic software were used torque method, potentiometry, pressure method such as pressure on the multi-stage pump diagnosis.
The multi-sets of applications in Huabei Oilfield, Liaohe Oilfield and Bohai Oilfield show that the sensor and acquisition diagnostic system can not only accurately measure the torque, axial force, rotational speed and power of multistage pumps, but also determine the working conditions of multistage pumps , Fault diagnosis, heavy oil drop a dosing cycle, automatic frequency control and other measures to provide technical support; with long life, anti-interference ability, linear range, high accuracy. Its structural modifications can also be applied to the monitoring of internal combustion engines, compressors, pumps, power machines, mechanical transmission gears, clutches and the like.