Digital intelligent belt pumping unit

Abstract

The invention discloses a digital intelligent belt pumping unit which is composed of an engine base rack system, a power transmission system, a belt traction system, a lubricating system, a braking system and a digital intelligent control system. A rear guide wheel (17) is mounted in the middle of an upper platform (15). A front guide wheel (18) is mounted on the front portion of the upper platform (15). The head end of triangular adhesive tape (21) is connected with a balance weight (14). The tail end of the triangular adhesive tape (21) penetrates through the front and rear guide wheels to be connected with a beam hanger (24). An anti-theft door bolt is arranged on an inspection door (22) on the lower portion of the front side of a rack (7). A cylindrical spring (43) is arranged on the lower portion of a driven chain pulley seat (10). A hidden safety bumper (28) is arranged on the upper portion of the balance weight. Centering devices (20) are arranged at the top and the bottom of the balance weight. An outlet where a belt on the front portion of the upper platform passes is closed with a banister brush (50). Information sources including motor current, pressure, position, flow and the like acquired by sensors are subjected to logic operation of an integrated processor to be input and output through a master control system, and the pumping unit whole process can be automatically controlled. Operating parameters, audio and videos are instantaneously transmitted to a central control room through a WiFi network.

Description

technical field [0001] The invention relates to an oilfield extraction equipment, in particular to a digital intelligent beamless pumping unit. [0002] technical background [0003] For more than 100 years, oilfield pumping units are mainly beam pumping units. This type of pumping unit has the characteristics of stable operation, solid and reliable, but also has the characteristics of large size, short stroke, high stroke frequency, low efficiency and energy consumption. High disadvantage. With the long history of oil field exploitation, less and less underground crude oil, and deeper and deeper oil layers, the limitations of the use of this beam pumping unit have become more and more prominent. Therefore, in the past two decades, researchers have developed Various types of beamless pumping units have been developed. This type of pumping unit has the characteristics of long stroke and low stroke times. Although there are various types of pumping units with their own charac...

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Problems solved by technology

[0003] For more than 100 years, oilfield pumping units are mainly beam pumping units. This type of pumping unit has the characteristics of stable operation, solid and reliable, but also has the characteristics of large size, short stroke, high stroke frequency, low efficiency and energy consumption. high disadvantage

With the long history of oil field exploitation, less and less underground crude oil, and deeper and deeper oil layers, the limitations of the use of this beam pumping unit have become more and more prominent. Therefore, in the past two decades, researchers have developed Various types of beamless pumping units have been developed. This type of pumping unit has the characteristics of long stroke and low stroke times. Although there are various types of pumping units with their own characteristics, the wide-band pumping unit (patent No. 4916959) invented by Longview in the United States has the largest number of promotions, almost accounting for more than 50% of the beamless pumping unit market. It has the characteristics of long stroke, low stroke frequency, stable operation and high reliability, etc., but there are also the following problems: first, the traction belt vibrates and drifts in case of wind; It is time-consuming and labor-intensive to move the whole machine backwards; the third is that the noise is large, which is caused by the rolling friction between the 12 centering wheels and the frame; the fourth is that the adjustment of the chain tension requires parking, and it needs to be adjusted once after a period of time; the fifth is that there is safety Hidden danger, the counterweight is only braked by brakes in the frame, and there is no insurance measure. Once the brakes fail, it is very likely to cause damage to personnel and equipment; Sixth, wind, sand and rainwater are easy to invade the body and pollute lubricating oil; Seventh, the anti-theft function is missing, The counterweight steel plate and lubricating oil in the machine body are easy to be stolen by criminals; eighth, the power of the motor is equipped with the same power as that of the beam pumping unit, and the power margin is large, resulting in large horse-drawn and small carts.

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