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Apparatus for surface treatment of pipelines and pipe fittings before using

A technology of front surface and pipe fittings, which is applied in the direction of metal material coating process, etc., can solve the problems that the processing speed of pipes and pipe fittings has a great influence on the construction progress, and the quality of pipe or pipe fittings affects the quality of the project, so as to achieve the benefit of pretreatment efficiency and shorten the time The effect of residence time and reducing the degree of corrosion

Inactive Publication Date: 2017-03-08
黄鸣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the above-mentioned pipeline laying occasions with a large number of pipes and fittings, many specifications, and large pipe diameters, the construction progress of pipeline installation is greatly affected by the processing speed of pipes and fittings, and the quality of the processing of pipes or fittings also directly affects the quality of the project. problem, the present invention provides a device for surface treatment of pipes and pipe fittings before use

Method used

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  • Apparatus for surface treatment of pipelines and pipe fittings before using

Examples

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Effect test

Embodiment 1

[0018] Such as figure 1 , a device for surface treatment of pipes and pipe fittings before use, including a pretreatment tank group, the pretreatment tank group includes degreasing tanks, pickling tanks, flushing tanks, neutralization tanks and passivation tanks, the degreasing tanks, acid The washing tank, rinsing tank, neutralization tank and passivation tank are arranged side by side according to the above order, and two gantry frames with fulcrums respectively located on the left and right sides of the pretreatment tank group are included. Each pretreatment tank in the pretreatment tank group is It is located below the crossbeam of the gantry frame, and a crane that can move along the length direction of the crossbeam is also arranged on the crossbeam.

[0019] In this embodiment, the degreasing tank, pickling tank, flushing tank, neutralization tank and passivation tank are arranged side by side and arranged in sequence, which facilitates the transfer of pipelines or pipe...

Embodiment 2

[0021] This embodiment is further limited on the basis of Example 1, as a kind of various pretreatment tanks suitable for on-site use and transfer, and has a good economic index in the small batch processing process, the degreasing tank, pickling The tank, rinse tank, neutralization tank and passivation tank are all strip tanks.

[0022] As an implementation method with low manufacturing cost and easy transshipment or reuse, the degreasing tank, pickling tank, flushing tank, neutralization tank and passivation tank are all iron tanks welded by metal plates.

[0023] To facilitate drying of pipes or fittings after or during pretreatment, a compressed gas outlet adjacent to the flush tank is also included.

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Abstract

The invention discloses an apparatus for the surface treatment of pipelines and pipe fittings before using. The apparatus comprises a group of pretreatment tanks. The pretreatment tank group comprises a degreasing tank, an acid washing tank, a flushing tank, a neutralizing tank, and a passivating tank. The degreasing tank, the acid washing tank, the flushing tank, the neutralizing tank, and the passivating tank are parallelly arranged in sequence. The apparatus also comprises a portal frame, whose two supporting points are respectively arranged on the left side and right side of the pretreatment tank group. Each pretreatment tank of the pretreatment tank group is arranged under the crossbeam of the portal frame. A crane, which can move along the length direction of the crossbeam, is arranged on the crossbeam. The provided pretreatment system can improve the pretreatment efficiency before welding of pipelines or pipe fittings, and improves the pretreatment quality at the same time.

Description

technical field [0001] The invention relates to the technical field of mechanical engineering pipeline erection, in particular to a device for surface treatment of pipelines and pipe fittings before use. Background technique [0002] After the installation of equipment or process pipelines, before leak testing and pressure testing, the pipelines should be purged to remove iron filings, rust, welding slag and other sundries left in the equipment and pipelines, so as to prevent the above sundries from being trapped in the pipeline. During use, the pipeline will be blocked by the fluid, and the valves and instruments will be damaged to ensure the safe operation of special equipment, instruments, regulating valves, pumps, filters and other equipment, and it is also beneficial to the quality of the product. [0003] For process pipelines used for the transportation of flammable and explosive gases, it is generally necessary to pickle, degrease, and passivate the pipeline before t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/00C23G3/04
Inventor 黄鸣
Owner 黄鸣
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