CN2373673Y - Expansion compensation apparatus for magnetic sealed pipeline - Google Patents
Expansion compensation apparatus for magnetic sealed pipeline Download PDFInfo
- Publication number
- CN2373673Y CN2373673Y CN 98215296 CN98215296U CN2373673Y CN 2373673 Y CN2373673 Y CN 2373673Y CN 98215296 CN98215296 CN 98215296 CN 98215296 U CN98215296 U CN 98215296U CN 2373673 Y CN2373673 Y CN 2373673Y
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- CN
- China
- Prior art keywords
- magnetic
- inner core
- urceolus
- gland
- flange
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an expansion compensation apparatus for a magnetic sealed pipeline, which belongs to the technical field of the pipe fitting. An inner cylinder is provided with a pressing cover; a magnet box is arranged under the pressing cover; the box is provided with a magnet retainer and permanent magnets; magnetic sealed lubricating liquid is filled between the permanent magnets; a the pressing cover is fixed on a fixing flange by a pressure bolt; the magnet box is made of engineering plastics. A sliding sealed surface is a liquid sealed structure composed of the permanent magnets and the magnetic sealed lubricating liquid. The compensation apparatus has the advantages of flexible expansion, large compensation quantity, no thrust, high working pressure, high sealing performance, floor area saving, less dropsy, easy fabrication and low price. The utility model is an ideal compensation apparatus for the pipeline.
Description
The utility model belongs to the pipe fitting technical field, particularly a kind of magnetic seal pipeline telescopic compensator.
Industrial pipeline is that modern industry is used the most generally, important component part the most widely distributes.The setting of pipeline exists the compensation problem of expanding with heat and contract with cold, and except that the part of utilizing the nature compensation, usually artificial compensation's device need be set, and pipeline compensator promptly is set.Traditional pipeline compensator mainly contains following several: i.e. bellow expansion joint, cydariform compensator, square-shaped joints and packing type compensator, these compensators are divided into elastic compensating device and plasticity compensator by its stressing conditions in the fore and aft motion process.Bellow expansion joint, cydariform compensator and square-shaped joints exist bigger ripple wall power or elastic force, belong to the elastic compensating device.The elastic force size of elastic compensating device is linear with the compensation rate size, heavy wall carbon steel bellow expansion joint and cydariform compensator size are big, thrust (rebounding force) is big, perishable, replaced by the stainless steel thin-wall FlexbleJoint gradually, stainless steel thin-wall FlexbleJoint elastic force is little, ripple wall power is little, and more corrosion-resistant, but it costs an arm and a leg; The square-shaped joints advantage is easy manufacturing, and is applied widely, and compensation ability is also big, but that its shortcoming is a boundary dimension is big, it is many to take up an area of, and also needs to establish in addition support sometimes, and when big or its pipeline price was comparatively expensive when pipeline specifications, its comprehensive cost was also high; Stressed (frictional force) of plasticity compensator is irrelevant with the compensation rate size, and exists only among the process of moving, and only there is the frictional force in the fore and aft motion process in the packing type compensator, and the flexible back frictional force that finishes is promptly died away, and belongs to the plasticity compensator.Thereby the filler compensator has comparatively special advantages, have advantages such as volume little (occupy-place is little), no thrust, cost be comparatively cheap, but because it relies on the bigger filler of frictional resistance to compress sealing, it is low that it is withstand voltage, fluid (particularly gas) leak-down rate is bigger, usually be not suitable in the higher and toxicity of pressure, dangerous big or the fluid line that price is higher and use, on engineering, seldom see at present.
The purpose of this utility model is to provide a kind of magnetic seal pipeline telescopic compensator, new sealing configuration and sealing means have been adopted, when having conventional filler compensator advantage, overcome the defective of conventional solid filler compensator, make compensator volume little (occupy-place is little), no thrust, escape of liquid rate little, be suitable for that pressure is higher, cost is comparatively cheap, simple and reliable for structure, reduce investment outlay.
The purpose of this utility model realizes as follows: magnetic seal pipeline telescopic compensator is made up of the spacing flange of inner core, caging bolt, gland, magnetic box, outer pipe plug, liquid-feeding tube, hold-down bolt, fastening flange, sealing gasket, the spacing flange of urceolus, permanent magnet, the lubricated sealing liquid of magnetic seal, magnet retainer, inner core, urceolus.The inner core termination is provided with the spacing flange of inner core, the urceolus two ends are provided with fastening flange and the spacing flange of urceolus, urceolus is enclosed within outside the inner core, caging bolt runs through spacing flange of inner core and the spacing flange of urceolus, the flexible scope of restriction inner core and urceolus, inner core is provided with gland, and liquid-feeding tube is installed, between gland and inner tank theca, magnetic box is set, the built-in magnet retainer of box, permanent magnet is injected with the magnetic seal Lubricants by liquid-feeding tube between permanent magnet, outer pipe plug shutoff liquid-feeding tube, hold-down bolt is fixed on gland on the fastening flange, and sealing gasket places between gland and the fastening flange.
Because the liquid sealing structure that sliding sealing surface of the present utility model has adopted permanent magnet and magnetic seal Lubricants to form.Strict guarantee the sealing of magnetic seal pipeline telescopic compensator; The magnetic seal Lubricants is made oiling agent, can reduce frictional resistance significantly, thereby when making it do telescopic moving, frictional force reduces to very little degree, has ensured the dexterity of action of telescopic compensator.Compensation rate is big, no thrust, working pressure and sealability increase substantially than filler compensator, and volume little, occupy little space save land used, be difficult for hydrops, making easily, need not increase support, cheap, be a kind of desirable pipeline compensator.
Below in conjunction with accompanying drawing enforcement of the present utility model is further described.
Fig. 1 is a structural representation of the present utility model
Among the figure, the 1st, the spacing flange of inner core, the 2nd, caging bolt, the 3rd, gland, the 4th, magnetic box, the 5th, outer pipe plug, the 6th, liquid-feeding tube, the 7th, hold-down bolt, the 8th, fastening flange, the 9th, sealing gasket, the 10th, the spacing flange of urceolus, the 11st, permanent magnet, the 12nd, magnetic seal lubricates sealing liquid, the 13rd, magnet retainer, the 14th, inner core, the 15th, urceolus.
Magnetic seal pipeline telescopic compensator is made up of the spacing flange 1 of inner core, caging bolt 2, gland 3, magnetic box 4, outer pipe plug 5, liquid-feeding tube 6, hold-down bolt 7, fastening flange 8, sealing gasket 9, the spacing flange 10 of urceolus, permanent magnet 11, the lubricated sealing liquid 12 of magnetic seal, magnet retainer 13, inner core 14, urceolus 15.Inner core 14 terminations are provided with the spacing flange 1 of inner core, urceolus 15 two ends are provided with fastening flange 8 and the spacing flange 10 of urceolus, urceolus 15 is enclosed within outside the inner core 14, caging bolt 2 runs through spacing flange 1 of inner core and the spacing flange 10 of urceolus, the flexible scope of restriction inner core 14 and urceolus 15, inner core is provided with gland 3, and liquid-feeding tube 6 is installed, between gland 3 and inner core 14 outer walls, magnetic box 4 is set, the built-in magnet retainer 13 of box, permanent magnet 11 11 is injected with magnetic seal Lubricants 12, outer pipe plug 5 shutoff liquid-feeding tubes 6 by liquid-feeding tube 6 between permanent magnet, hold-down bolt 7 is fixed on gland 3 on the fastening flange 8, and sealing gasket 9 places between gland 3 and the fastening flange 8.When pipeline is expanded or is met cold contraction, the inner core 14 and the urceolus 15 of magnetic seal pipeline telescopic compensator axially relatively move, permanent magnet 11 in the magnetic box 4 has contacted good with the sliding sealing surface that magnetic seal Lubricants 12 constitutes with inner core 14 sealings, and permanent magnet 11 makes magnetic seal Lubricants 12 move along with moving of magnetic box 4, make the fluid in the telescopic compensator extremely be difficult for from sealing surface, overflowing, strict guarantee the sealing of magnetic seal pipeline telescopic compensator; And magnetic box 4 selects engineering plastics to make, because the self-lubricating property of engineering plastics is good, friction factor is little, add that the seal lubrication liquid 12 that is magnetic makes oiling agent, can reduce frictional resistance significantly, thereby when making it do telescopic moving, frictional force reduces to very little degree, has ensured the dexterity of action of telescopic compensator.Magnetic box 4 can adopt AAS resin (acrylonitrile---acrylic resin usually ... styrol copolymer), in high-temperature pipe, can adopt and fill F by injection moulding or extrusion modling
4(being filled polytetrafluoroethylene) and F
46(perfluoroethylene-propylene) made.Gasket seal should be chosen according to pipeline medium kind and working pressure, and it is bonding to adopt binder to carry out between magnetic box 4 and the gland 3.
Claims (2)
1, a kind of magnetic seal pipeline telescopic compensator, by the spacing flange of inner core, caging bolt, gland, hold-down bolt, fastening flange, sealing gasket, the spacing flange of urceolus, inner core, urceolus is formed, it is characterized in that the inner core termination is provided with the spacing flange of inner core, the urceolus two ends are provided with fastening flange and the spacing flange of urceolus, caging bolt runs through spacing flange of inner core and the spacing flange of urceolus, inner core is provided with gland, and liquid-feeding tube is installed, between gland and inner tank theca, magnetic box is set, the built-in magnet retainer of box, permanent magnet, seal lubrication liquid is magnetic between permanent magnet, outer pipe plug shutoff liquid-feeding tube, hold-down bolt is fixed on gland on the fastening flange, and sealing gasket places between gland and the fastening flange.
2, magnetic seal pipeline telescopic compensator according to claim 1 is characterized in that magnetic box made by engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98215296 CN2373673Y (en) | 1998-06-10 | 1998-06-10 | Expansion compensation apparatus for magnetic sealed pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98215296 CN2373673Y (en) | 1998-06-10 | 1998-06-10 | Expansion compensation apparatus for magnetic sealed pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373673Y true CN2373673Y (en) | 2000-04-12 |
Family
ID=33968654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98215296 Expired - Lifetime CN2373673Y (en) | 1998-06-10 | 1998-06-10 | Expansion compensation apparatus for magnetic sealed pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373673Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331990A (en) * | 2018-01-15 | 2018-07-27 | 江苏大学 | A kind of axial compensator of magnet fluid sealing |
| CN108548034A (en) * | 2018-05-09 | 2018-09-18 | 江苏大学镇江流体工程装备技术研究院 | A kind of magnet fluid sealing pipeline compensating mechanism for connection |
| CN112728249A (en) * | 2020-12-29 | 2021-04-30 | 中国航空工业集团公司西安飞机设计研究所 | Sleeve sealing structure |
| US11199265B2 (en) * | 2018-01-15 | 2021-12-14 | Jiangsu University | Pipe connection compensation device by magnetic fluid sealing |
-
1998
- 1998-06-10 CN CN 98215296 patent/CN2373673Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331990A (en) * | 2018-01-15 | 2018-07-27 | 江苏大学 | A kind of axial compensator of magnet fluid sealing |
| CN108331990B (en) * | 2018-01-15 | 2020-06-09 | 江苏大学 | Axial compensation device for magnetic fluid seal |
| US11199265B2 (en) * | 2018-01-15 | 2021-12-14 | Jiangsu University | Pipe connection compensation device by magnetic fluid sealing |
| CN108548034A (en) * | 2018-05-09 | 2018-09-18 | 江苏大学镇江流体工程装备技术研究院 | A kind of magnet fluid sealing pipeline compensating mechanism for connection |
| CN112728249A (en) * | 2020-12-29 | 2021-04-30 | 中国航空工业集团公司西安飞机设计研究所 | Sleeve sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Patentee after: Zhongye Saide Engineering Technology Co., Ltd. Patentee before: Zhongye Saide Engineering Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |