Petroleum pipe-pile vertical-type static-electroplating anti-mixing liquid-replacing device

Abstract

The invention relates to a petroleum pipe-pile vertical-type static-electroplating anti-mixing liquid-replacing device, which comprises a supporting frame, a lifting driving mechanism, an anti-rotating mechanism, a multi-branch conveying mechanism, a liquid outputting mechanism, a rotary pipeline and a rotary positioning mechanism, wherein the rotary positioning mechanism is arranged between the rotary pipeline and the anti-rotating mechanism and comprises a rotating shaft, a rotary limiting mechanism and a rotary-pipe linking mechanism, wherein the rotating shaft is connected between a fixed-sealing lower joint of the rotary pipeline and a thrust ball bearing of the anti-rotating mechanism, and the rotary limiting mechanism and the rotary-pipe linking mechanism are connected onto the rotating shaft. Compared with the electroplating in an existing ordinary process, the petroleum pipe-pile vertical-type static-electroplating anti-mixing liquid-replacing device which is applied to vertical-type immovable pipe-pile electroplating has the advantages that a pipe pile does not need to be hoisted or moved, so that the re-clamping and the repositioning of the pipe pile and an anode are omitted, the production working time is saved, and safety problems generated by the hoisting movement of a traveling vehicle for the pipe pile in an original production process are prevented; moreover, the quality of products is greatly guaranteed, the production efficiency is greatly improved, manpower and material resources are saved, and the production cost is lowered.

Description

Technical field [0001] The invention relates to the field of petroleum pipeline surface protection treatment devices, in particular to a petroleum pipe string vertical static electroplating anti-mixing liquid exchange device. Background technique [0002] With the increase in the difficulty of crude oil extraction, the use environment of oil pipe string is getting worse and worse, and its working medium often contains O 2 , CO 2 , H 2 Corrosive media such as S and brine will inevitably cause damages such as corrosion, scaling, waxing, abrasion, etc. with the extension of use time, reducing the service life of the petroleum pipe string and increasing the cost of oil production. Electroplating the inner surface of petroleum pipe string is an anti-corrosion technology gradually emerging at home and abroad. In the ordinary electroplating production equipment, the crane hoisting the petroleum pipe string to carry out the station conversion is a key step in the production. However, bec...

AI Technical Summary

Problems solved by technology

In ordinary electroplating production equipment, it is a key step in the production to hoist the oil pipe string for station conversion, and because the oil pipe string itself is relatively large and heavy, the burden on the driving is relatively heavy, and the driving stability decreases after working for a long time , the hoisting accuracy decreases, resulting in a decrease in production efficiency and production quality

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