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Magnetofluid seal pipeline connection compensation device

A magnetic fluid sealing and compensation device technology, which is applied in the field of magnetic fluid, can solve the problems such as the design method of parts not given, and achieve the effects of ensuring adaptability, meeting the sealing effect, and working efficiently and stably

Inactive Publication Date: 2018-09-18
JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the design method of each part is not given

Method used

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  • Magnetofluid seal pipeline connection compensation device
  • Magnetofluid seal pipeline connection compensation device
  • Magnetofluid seal pipeline connection compensation device

Examples

Experimental program
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Effect test

Embodiment

[0088] Clean water transportation pipeline, the inner diameter of the pipeline is 50mm, and the design pressure is P 0 =4MPa, the pipe adopts flange joints, and the nominal diameters of the connecting pipe 2 (4) and the connecting pipe 1 (3) are both d 0 =50mm, the connecting pipe two (4) and connecting pipe one (3) are made of Q345D, the allowable stress of the material [δ] t =174MPa; According to the "Steel Pressure Vessel" GB150-1998, the welding joint coefficient E of connecting pipe 1 (3) and connecting pipe 2 (4) j The selected value is 0.9; the wall thickness δ of the connecting pipe 24 1 for:

[0089]

[0090] in:

[0091] d 0 —Nominal diameter of connecting pipe 24, mm;

[0092] P 0 —Design pressure of the fluid in the pipeline, Mpa;

[0093] D. 0 —Outer diameter of connecting pipe 24, D 0 = d 0 +2δ 1 , mm;

[0094] [δ] t — Allowable stress of material of connecting pipe 24, Mpa;

[0095] E. j —The welding joint coefficient of connecting pipe 24;

...

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Abstract

The invention provides a magnetofluid seal pipeline connection compensation device. The magnetofluid seal pipeline connection compensation device comprises a connection compensation device body. The connection compensation device body comprises a compensation pipe, a seal end cover, a coil, an annular permanent magnet and a fastening rod; a first annular liquid storage groove and a second annularliquid storage groove are formed in the inner wall of the seal end cover, a first annular groove and a second annular groove which are arranged axially are formed in the outer wall of the seal end cover, the coil is wound on the first annular groove, the annular permanent magnet is arranged in the second annular groove, a radial gap between the seal end cover and a second connecting pipe, and theradial gap between the seal end cover and the first annular liquid storage groove, the second annular liquid storage groove and the compensation pipe form a gap cavity, and magnetofluid exists in thegap cavity. According to different pipelines and work pressure in actual engineering, the mutual relation is given, and it is ensured that the magnetofluid seal axial compensation device well meets the seal effect.

Description

technical field [0001] The invention relates to the field of magnetic fluid, in particular to a magnetic fluid sealing pipeline connection compensation device. Background technique [0002] Patent 201810034518.5 A magnetic fluid seal axial compensation device According to the magnetic fluid seal principle, a newly designed telescopic structure is adopted to invent a magnetic fluid seal axial compensation device, which has the characteristics of simple structure, easy installation, and easy disassembly. However, the design method of each part is not given. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides an axial compensation device for magnetic fluid seals. According to different pipelines and working pressures in actual engineering, each component in the axial compensation device for magnetic fluid seals is designed , the relationship between them is given to ensure that the magnetic fluid seal axial compensat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/00F16L27/12
CPCF16L27/12F16L51/00
Inventor 刘厚林张子龙罗凯凯王勇王凯董亮谈明高
Owner JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH
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