Screw pump well angular velocity measurement device containing double sensing units and capable of eliminating eccentric error
A sensing unit, acceleration measurement technology, applied in measurement devices, speed/acceleration/shock measurement, testing/calibration of speed/acceleration/shock measurement equipment, etc. Debugging technology and other issues to achieve the effect of eliminating the influence of eccentricity error on the results, convenient installation, and easy use in industrial sites
Active Publication Date: 2016-09-28
XI AN JIAOTONG UNIV
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Problems solved by technology
At this time, the distance between the center of the sensor and the center of the screw pump will often change. However, oilfield operators often do not have the sensor installation and debugging technology. Without professional sensor installation and debugging personnel, it is inevitable to introduce eccentricity errors and affect the measurement accuracy.
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[0032] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:
[0033] like figure 1 As shown in the present invention, a screw pump well angular velocity measurement device containing dual sensing units that can eliminate eccentric installation errors includes a horseshoe-shaped open metal shell 5, and a first acceleration measurement device 1 installed in the horseshoe-shaped open metal shell 5 And the second acceleration measuring device 2, as well as the signal processing and wireless transmission circuit board 3 and the battery 4 with small size and large capacity. The horseshoe-shaped notch is used to install with the rotating shaft of the screw pump and is fixed with the rotating shaft by the pressing screw, so that it can rotate with the rotating shaft without slipping. The first acceleration measurement device 1 and the second acceleration measurement device 2 have the same material size, are arr...
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The invention provides a screw pump well angular velocity measurement device containing double sensing unit and capable of eliminating an eccentric error by means of related principle and related method of a centrifugal force, beam force-induced bending and strain measuring force when an object rotates around a fixed shaft. The screw pump well angular velocity measurement device comprises a horse-shoe-shaped open metal housing, a first acceleration measurement device and a second acceleration measurement device, wherein the first acceleration measurement device and the second acceleration measurement device are mounted in the horse-shoe-shaped open metal housing. The screw pump well angular velocity measurement device further comprises a signal processing and wireless transmitting circuit board and a small-dimension large-capacity battery. According to the screw pump well angular velocity measurement device, an open type design is utilized and mounting on a construction field is facilitated. The acceleration measurement device has advantages of simple structure, low cost and high reliability. The angular speed is measured by means of a method of acquiring a difference between measurement results of the two acceleration measurement devices as the two sensing units. The effect of the eccentric error caused by inappropriate mounting to the result can be prevented. Real-time continuous measurement for the screw pump well angular velocity can be realized by means of a wireless transmission device.
Description
technical field [0001] The invention belongs to the technical field of oilfield mechanical measurement, and in particular relates to an open-type oilfield screw pump well angular velocity real-time measurement device which can eliminate the installation eccentricity error of the measurement device and can eliminate the installation eccentricity of the measurement device. Background technique [0002] In the oil production process of the screw pump, the angular velocity of the screw pump directly affects the efficiency and life of the pump, and is an important parameter to reflect the working state of the screw pump oil well. When an angular velocity measuring device is added to the currently working screw pump, it often does not change the original equipment structure, does not affect the performance of the equipment, and has the requirements of being easy to install, disassemble, easy to maintain, and even maintenance-free. The measurement accuracy of the angular velocity m...
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Login to View More IPC IPC(8): G01P21/02G01P3/44
CPCG01P3/44G01P21/02
Inventor 田征徐明龙邵妍敬子建马国亮冯勃
Owner XI AN JIAOTONG UNIV