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Composite cavitation cleaner for pipe descaling

A composite cleaner technology, which is applied to chemical instruments and methods, cleaning hollow objects, cleaning methods and utensils, etc., can solve the problems of PIG cleaning method, such as expensive equipment, high risk, and polluting the environment, and achieve good cleaning effect, Effects of reduced risk and simple equipment

Active Publication Date: 2019-03-08
DALIAN MARITIME UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. High pressure water jet requires high pressure and high risk
[0006] 2. The PIG cleaning method is expensive and expensive
[0007] 3. The chemical cleaning method is highly toxic and pollutes the environment

Method used

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  • Composite cavitation cleaner for pipe descaling
  • Composite cavitation cleaner for pipe descaling
  • Composite cavitation cleaner for pipe descaling

Examples

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Embodiment Construction

[0034] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0035] Such as Figure 1-6 Shown: the subject matter of the present invention is Figure 1-3 The blade cleaning structure shown in the blade cleaning structure produces cavitation effect through the throttling surface formed by the wall surface at the upper end of the blade cleaning structure. Under the condition of the bending angle, the upper bending blade area can quickly generate cavitation, and the lower bending The vacuoles in the leaf region can collapse rapidly.

[0036] Such as image 3 Shown is the upper bending angle θ 1 , down bending angle θ 2 The blade cleaning structure adopts different upper and lower bending angles, and the upper bending angle θ 1 When smaller, the throttle area is smaller and more cavitation bubbles can be generated. And the lower bending angle θ 2 Larger, i...

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Abstract

The invention discloses a composite type air cleaner for pipeline descaling. The composite type air cleaner comprises a blade cleaning mechanism and a nozzle. The blade cleaning mechanism and the nozzle are connected into a whole through self-lock threads. The blade cleaning mechanism comprises inner-layer blades and outer-layer blades. The inner-layer blades and the outer-layer blades are staggered and stacked together. The nozzle is composed of an inlet cavity, a cavitation resonant cavity and small jet flow holes. Due to the fact that the cavitation mechanism is adopted for cleaning a pipeline, the cleaning efficiency is much higher compared with traditional cleaning ways. By the adoption of two-stage composition of the blade cavitation cleaner and the cavitation nozzle, the cavitation effect is improved compared with a single-stage cavitation cleaner. By the adoption of the composite type air cleaner, needed driving pressure is lower than 10 MPa, and the risk is lowered compared with traditional high-pressure water jet flow cleaning technology. The cavitation cleaner is simple in structure and low in manufacturing cost, and therefore the needed cost is lower compared with traditional PIG cleaning technology.

Description

technical field [0001] The invention relates to oilfield pipeline descaling technology, in particular to a cavitation cleaner used for pipeline descaling. Background technique [0002] In recent years, the strong alkali ASP flooding system has achieved sustained high and stable production for the oil field, but the chemical reaction between the strong alkali and the rock minerals in the formation caused the dissolution and shedding of the rocks in the reservoir, and the calcium Insoluble ions such as silicon and silicon are deposited during pipeline transportation to form complex mixed scales, which will cause blockage of oilfield pipelines, seriously affect oil recovery efficiency, and cause economic losses. Therefore, it is of great significance to study new technologies for removing calcium and silicon mixed scales in oilfield pipelines, improve the rheological properties of ASP flooding systems, and improve production efficiency. [0003] Traditional pipeline descaling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B9/032B08B9/04
CPCB08B9/032B08B9/04
Inventor 马文琦孙红镱陈东奇
Owner DALIAN MARITIME UNIVERSITY
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