Speed control device for small-caliber pipeline

Abstract

The invention relates to a speed control device for a small-caliber pipeline, and belongs to the technical field of speed control. The problem that in the prior art, signals are not stable due to thefact that the speed of a detector in the small-caliber pipeline with the diameter of 20 inches or below fluctuates is solved. The speed control device comprises a speed regulating section, a power source control section, a power cup and a supporting cup. The speed regulating section and the power control section are both of hollow structures. The speed regulating section is the first section of the speed control device, and an executing mechanism is arranged in the speed regulating section. The power source control section is arranged at the rear end of the speed regulating section, and a function component is arranged in the power source control section. The speed regulating section is connected with the power source control section through a universal joint. The power cup sleeves the speed regulating section, and the supporting cup sleeves the power source control section. The speed control device is used in cooperation with the detector in the pipeline, speed regulation is carried out by changing the leakage rate of a rotary valve of 0-10%, the stability of the operation speed in the detector in the pipeline of 20 inches or below is achieved, and the effectiveness of detecting data is guaranteed.

Description

technical field [0001] The invention relates to the technical field of speed control, in particular to a speed control device for small-diameter pipelines. Background technique [0002] The detector in the pipeline only relies on the action of the power cup to move with the medium, so it is difficult to guarantee the best detection speed. Due to the compressibility of the gas medium, there will be instantaneous stagnation, and the instantaneous speed can reach more than ten meters per second, resulting in the detection data failure or even lead to the risk of accidents. For small-caliber oil, water, and gas mixed media pipelines, a stable detection speed can greatly improve the quality of detection data, which is of great significance for improving detection accuracy, improving detection efficiency, and researching speed-controllable in-pipeline detectors. [0003] The detector in the pipeline has no power device itself, and its operation in the pipeline depends entirely on...

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a speed control device for small-diameter pipelines to solve signal instability caused by detector velocity fluctuations in small-diameter pipelines with a diameter of less than 20 inches in the prior art The problem

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