Special ceramic double-lining pipe and production method thereof

A special ceramic and production method technology, which is applied in the field of pump components, can solve problems such as sleeve drop, ceramic sleeve dislocation, leakage, etc., and achieve the effects of good temperature resistance, good toughness, and reduced use cost

Inactive Publication Date: 2008-04-02
SHANGHAI YICHANG SPECIAL CERAMIC SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pump tube of the pump also has gaps and pores between the outer tube and the special ceramic sleeve due to the fluidity of the adhesive, and there are unresolvable defects such as ceramic sleeve dislocation, falling off, and leakage; the adhesive between the piston rod core tube and the special ceramic sleeve is stuck There are also gaps and pores in the solid body, resulting in misalignment and shedding

Method used

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  • Special ceramic double-lining pipe and production method thereof

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Embodiment Construction

[0014] Embodiments of the present invention will be described below in conjunction with the accompanying drawings, so as to make the structural details, features, objectives and advantages of the present invention more clear, but not intended to limit the scope of the present invention.

[0015] The structure of the embodiment of the present invention will now be described in conjunction with the accompanying drawings: as shown in the figure, a special ceramic double-lined pipe consists of an outer pipe 1 and a lined pipe. It is a transition fit between the outer pipe 1 and the liner pipe, keeping a gap 4 of about 2 mm. The liner pipe is thermally sleeved by a steel lining 2 heated to 500°C on three ceramic linings 3 whose length is 1 / 3, and the steel lining 2 is tightly fitted on the ceramic lining 3 In order to give full play to the characteristics of high temperature resistance, corrosion resistance and wear resistance of the ceramic lining 3 formed by special ceramics; and...

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Abstract

The invention relates to a special ceramic dual sleeve tube, which comprises an outer tube and a sleeve tube. Wherein, the sleeve tube is formed by the inner ceramic liner and the outer steel liner; each three sections of ceramic liner are one group; and one section of steel liner sheathes said one group of ceramic liner. The producing method comprises that: first milling the inner diameter of steel liner and the outer diameter of ceramic liner; heating the steel liner to 500Deg. C; putting three sections of ceramic liners into the hot steel liner to be cooled; milling two end faces of sleeve tube and the inner diameter of ceramic liner; plating copper on the end face of sleeve tube; sheathing at least two sections of sleeve tubes on the coaxial mounting rod and sheathing a outer tube; arranging a pressure of 50kg / cm2 on the end of sleeve tube to combine said sections of sleeve tube. The invention can confirm better properties of temperature resistance, corrosive resistance, better tenacity, and abrasion resistance of the device formed by special ceramic material than the steel.

Description

technical field [0001] The invention relates to a pump assembly, and more particularly to a special ceramic double-lined pipe and a production method thereof. Background technique [0002] Under many working conditions, the equipment must have the performance of high temperature resistance, corrosion resistance and wear resistance. For example, the pumping unit used in oil field is installed hundreds of meters underground, or even thousands of meters. It works continuously until it is damaged. The underground itself has a very high ground temperature, and the equipment itself will generate high temperature when it is constantly pumping; oil or other underground minerals are very corrosive, and even stainless steel cannot Resist such strong corrosion; at the same time, when oil is pumped out from the ground, there must be sediment entrained together. The existence of sediment is well known that special ceramics have the characteristics of high temperature resistance, corrosio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/14F16L57/00
Inventor 王得刚尹觉生沈勇王德庆
Owner SHANGHAI YICHANG SPECIAL CERAMIC SCI & TECH DEV
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