CN2723804Y - Low temperature swelling magnetic seal rotary joint - Google Patents
Low temperature swelling magnetic seal rotary joint Download PDFInfo
- Publication number
- CN2723804Y CN2723804Y CN 200420060108 CN200420060108U CN2723804Y CN 2723804 Y CN2723804 Y CN 2723804Y CN 200420060108 CN200420060108 CN 200420060108 CN 200420060108 U CN200420060108 U CN 200420060108U CN 2723804 Y CN2723804 Y CN 2723804Y
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Abstract
The utility model relates to a low temperature swelling magnetic seal rotary joint whose two ends are respectively provided with right and left flange bodies with an inner shaft and an outer shaft. A sliding bearing is arranged between the right and left flange bodies, and a moving ring is also arranged to mutually joint with a sealing surface S of the end surface of the sliding bearing. A magnetic force with two same polarity magnetic poles which generates an axial repulsion magnetic field force to apply force to the sealing surface is arranged in the joint, and the screw thread propulsion is also provided to regulate the magnetic force, which ensures that the joint is without leakage in the process of operation. The joint is convenient to repair and demount, and the flange of the joint is demounted when the seal of the joint is damaged. The utility model overcomes the problems that many air conduits, joints, and balls are demounted when the existing joint is repaired, resulting in that the repair is difficult. The utility model also dispenses with the exorbitant importing elasticity cased seal which is difficult to match and purchase and is used for the existing joint. The utility model adopts new materials to ensure the sealing performance and the anti-corrosiveness performance. The joint not only solves the sealing problem of the dynamic state and static state of transferring the CO2 gas snakelike active pipe under the low temperature in the swelling equipment, but also can be used as a sealing rotary joint under the normal temperature for the petrifaction and other industries.
Description
(1) technical field: the utility model belongs to pipe joint or pipe fitting (F16L) as the seal swivel joint between two gas transmission indusion tubes in relative rotation.The connection of pneumatic tube in the available what tobacco business low temperature expanding throwing equipment, the connection of gas transmission indusion tube under also available what petrochemical industry or other industry normal temperature.
(2) background technique: existing tobacco business has adopted a kind of low temperature expanded throwing equipment of ventilating, see Fig. 4, carbon dioxide is sent into through pneumatic tube 11 (claiming snakelike adjustable pipe again) material (containing offal) is housed) expanded container 13 in, after the offal ventilation is expanded, volume increases, good permeability, utilization ratio improves.The expanded container cover that the time links to each other with snakelike adjustable pipe because of work frequently opens and closes, and relatively rotates during each the intersegmental work of then snakelike adjustable pipe, and sealing produces weares and teares.Adopt the termination 12.4 of an end to insert in the fittings body 12.2 of the other end in the existing low temperature expanding sealed rotational joint 12, both weld with the snakelike adjustable pipe 11 in the left and right sides respectively, and ball 12.3 is housed between the two, and the right snakelike adjustable pipe termination of welding with fittings body is fixed with the reinforced seal 12.1 of being with elastomer seal.If when seal leakage need be keeped in repair, ball all must be shaked out, pull out pipe, if damaging, a joint sealing need tear a plurality of coilers open, the maintenance dismounting is very difficult.And reinforced seal import price of spare parts costliness, quantity is difficult to buy rations after a little while.
(3) summary of the invention:
The utility model solves above-mentioned maintenance dismounting difficulty, the expensive problem of reinforced seal exactly.Its technological scheme is as follows:
Low temperature expanding magnetic seal swivel joint, it is characterized in that this joint shaft establishes the left flange body 1 with outer shaft, left flange respectively and have the right flange body 5 of interior axle, right flange to two ends, the fixing left flange body of what and of dress between two flange bodies with the sliding bearing 2 of its rotation, and establish the right flange body of fixing what and with the rotating ring 8 of its rotation, both end face seal face S fit mutually; In joint, be provided with to produce and axially repel the magnetic means that contain two same polarity magnetic poles 3 or 3a of magnetic force, and be provided with regulating axial distance carries out frictional compensation to sealing surface magnetic force adjusting Thrust ring 4 in order to application of force what sealing surface S; Between rotating ring and right flange body, all seal between the adpting flange of left and right sides flange body and outside pneumatic tube with sealing material.
Two same polarity magnetic poles can adopt at left flange body end face and the Thrust ring end face uniform identical a plurality of magnetic rollers 3 of slotting simultaneously and form in the above-mentioned magnetic means, and both ends of the surface relatively and formation repulsion separated by a distance magnetic field; Perhaps adopt the annulus permanent magnet of the same polarity of in these both ends of the surface are slotted it, pretending and form.The interior magnetic force adjusting of above-mentioned magnetic means Thrust ring 4 can adopt the interior circle of Thrust ring and the interior between centers of right flange body establishes intermeshing screw thread 4.1 and spanner blind hole 4.2 is established on the Thrust ring surface, the adjusting of realization magnetic force.Sliding bearing can adopt the tetrafluoro graphite material to make.Left and right flanges body, rotating ring, bolt, Thrust ring can adopt stainless steel material to make.Static sealing materials between rotating ring and right flange body, between the adpting flange of left and right sides flange and outside pneumatic tube also can adopt tetrafluoro graphite.Two permanent magnets that form repulsion magnetic field in the magnetic means can form with the mode of magnetizing.
The utility model beneficial effect: 1. magnetic means is determined corresponding face pressure according to operating conditions, and by regulating the magnetic force size, control friction pair (sealing surface) is worked under the calculating specific pressure that requires, and does not leak when being guaranteed joint work thus.2. connect with flange, repair demolition is very convenient.If the other joint sealing of a certain snakelike adjustable pipe damages, only need this joint flange dismounting get final product, needn't move and tear many snakelike adjustable pipe open and movingly tear ball open and take out pipe etc.3. adopt roller construction in the magnetic means, easy installation and removal substitutes the elastic skeleton sealing of the costliness of import, reduces manufacturing cost and use cost.4. Thrust ring threaded adjusting displacement and magnetic force is easy to operate.5. adopt tetrafluoro graphite sealing material, performance is good, guarantees low temperature-70～-100 ℃ lower contact proper functioning.6. the employing stainless steel material can guarantee the joint Corrosion Protection.7. this joint has not only solved in the expansion equipment transmission CO2 gas crawl dynamic, static sealing problem adjustable pipe low temperature under, also can be used as the seal swivel joint under other industry normal temperature work such as petrochemical industry.
(4) description of drawings:
Fig. 1 the utility model structural representation
Fig. 2 Figure 1A-A or B-B sectional view (magnetic means example I)
Fig. 3 Figure 1A-A or B-B sectional view (magnetic means example II)
Fig. 4 has low temperature expanding sealed rotational joint schematic representation (the low temperature expanding yarn that drawn simultaneously system diagrammatic sketch) now
(5) embodiment:
Example I: see Fig. 1, Fig. 2
See Fig. 1, left flange body 1 is by the left flange that is connected as a single entity 1.1 and put the outermost outer shaft 1.2 of what and form.Right flange body 5 is made up of right flange 5.1 that is connected as a single entity and the interior axle 5.2 of putting the what innermost layer.Be connected with the outside adjustable pipe flange 10 that crawls with 5.1 by left and right flanges 1.1, sealing gasket 9 adopts the tetrafluoro graphite between flange.Sliding bearing 2 is what outer shaft 1.2 endoporus and with its rotation fixedly.Rotating ring 8 usefulness nuts 6 are axle 5.2 left sides and with its rotation in the what fixedly, and this place establishes tetrafluoro graphite grazing packing ring 7.Circle relatively rotates with snakelike adjustable pipe 11 with interior axle 5.2 cylindricals and slide relative in the sliding bearing 2, and sliding bearing also adopts the tetrafluoro graphite material to make.The sealing surface S that sliding bearing contacts with rotating ring fits mutually.
See Fig. 1, Fig. 2, the following formation of magnetic means: outer shaft 1.2 right sides are circumferentially opened 12 uniform grooves and are put in it and open identical groove on 12 magnetic rollers 3 and Thrust ring 4 left sides and place the identical magnetic roller 3 of polarity, form repulsion magnetic field with this.Establish the spanner blind hole 4.2 on intermeshing screw thread 4.1 and surface in the Thrust ring 4 between circle and interior axle 5.2 cylindricals, to regulate the magnetic force size.The thrust that repulsion magnetic field produces passes to outer shaft 1.2, sliding bearing 2 in turn by magnetic roller 3, acts at last on the what sealing surface S, to guarantee its work specific pressure.
Example II: see Fig. 1, Fig. 3
Magnetic means has following different with example I: the circumferential open loop groove in outer shaft 1.2 right sides is put in it and is opened identical annular groove on annulus permanent magnet 3a and Thrust ring 4 left sides and place identical annulus permanent magnet 3a.All the other structures and the mode of action and example I are identical.
Claims (6)
1. low temperature expanding magnetic seal swivel joint, it is characterized in that this joint shaft establishes the left flange body (1) with outer shaft, left flange respectively and have the right flange body (5) of interior axle, right flange to two ends, the fixing left flange body of what and of dress between two flange bodies with the sliding bearing (2) of its rotation, and establish the right flange body of fixing what and with the rotating ring (8) of its rotation, both end face seal face S fit mutually; In joint, be provided with to produce and axially repel contain two same polarity magnetic pole (3) or (3a) the magnetic means of magnetic force, and be provided with regulating axial distance carries out frictional compensation to sealing surface magnetic force adjusting Thrust ring (4) in order to application of force what sealing surface S; Between rotating ring and right flange body, all seal between the adpting flange of left and right sides flange body and outside pneumatic tube with sealing material.
2. by the described seal swivel joint of claim 1, it is characterized in that in the magnetic means that two same polarity magnetic poles are formed by left flange body end face and the Thrust ring end face uniform identical a plurality of magnetic rollers (3) of slotting simultaneously, both ends of the surface are formation repulsion separated by a distance magnetic field relatively also; The annulus permanent magnet of the same polarity of perhaps in these both ends of the surface are slotted it, pretending and forming.
3. press the described seal swivel joint of claim 1, it is characterized in that magnetic force is regulated the interior circle of Thrust ring (4) employing Thrust ring and the interior between centers of right flange body establishes intermeshing screw thread (4.1) and spanner blind hole (4.2) is established on the Thrust ring surface.
4. by the described seal swivel joint of claim 1, it is characterized in that sliding bearing adopts the tetrafluoro graphite material to make.
5. by the described seal swivel joint of claim 1, it is characterized in that left and right flanges body, rotating ring, bolt, Thrust ring adopt stainless steel material to make.
6. by the described seal swivel joint of claim 1, it is characterized in that between rotating ring and right flange body, the static sealing materials employing tetrafluoro graphite between the adpting flange of left and right sides flange and outside pneumatic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060108 CN2723804Y (en) | 2004-07-05 | 2004-07-05 | Low temperature swelling magnetic seal rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060108 CN2723804Y (en) | 2004-07-05 | 2004-07-05 | Low temperature swelling magnetic seal rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723804Y true CN2723804Y (en) | 2005-09-07 |
Family
ID=35037430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060108 Expired - Fee Related CN2723804Y (en) | 2004-07-05 | 2004-07-05 | Low temperature swelling magnetic seal rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723804Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829186A (en) * | 2012-09-11 | 2012-12-19 | 程笃笃 | Adjusting method for sealing level of magnetic end face seal and special device thereof |
| CN106704360A (en) * | 2017-01-13 | 2017-05-24 | 西安航天动力研究所 | Floating bearing used for high-speed fuel gear pump |
| CN106763194A (en) * | 2017-02-27 | 2017-05-31 | 重庆江增船舶重工有限公司 | A kind of sliding bearing sealing structure |
| 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 |
| CN108953800A (en) * | 2018-06-27 | 2018-12-07 | 江苏建筑职业技术学院 | Piping lane abnormity pipe connection and connection method |
| CN110005956A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Shell split-type Anti-freezing cryogen rotary joint |
| CN110206927A (en) * | 2018-02-28 | 2019-09-06 | 科勒公司 | Water conveying device |
| CN114857370A (en) * | 2022-05-06 | 2022-08-05 | 重庆鼎久管道有限公司 | Corrosion-resistant spiral steel pipe |
-
2004
- 2004-07-05 CN CN 200420060108 patent/CN2723804Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829186A (en) * | 2012-09-11 | 2012-12-19 | 程笃笃 | Adjusting method for sealing level of magnetic end face seal and special device thereof |
| CN102829186B (en) * | 2012-09-11 | 2016-05-25 | 程笃笃 | A kind of high rotating speed magnetic force end face dynamic sealing device |
| CN106704360A (en) * | 2017-01-13 | 2017-05-24 | 西安航天动力研究所 | Floating bearing used for high-speed fuel gear pump |
| CN106763194A (en) * | 2017-02-27 | 2017-05-31 | 重庆江增船舶重工有限公司 | A kind of sliding bearing sealing structure |
| CN108331990B (en) * | 2018-01-15 | 2020-06-09 | 江苏大学 | Axial compensation device for magnetic fluid seal |
| CN108331990A (en) * | 2018-01-15 | 2018-07-27 | 江苏大学 | A kind of axial compensator of magnet fluid sealing |
| CN110206927A (en) * | 2018-02-28 | 2019-09-06 | 科勒公司 | Water conveying device |
| CN110206927B (en) * | 2018-02-28 | 2021-12-24 | 科勒公司 | Water delivery device |
| 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 |
| CN108953800A (en) * | 2018-06-27 | 2018-12-07 | 江苏建筑职业技术学院 | Piping lane abnormity pipe connection and connection method |
| CN108953800B (en) * | 2018-06-27 | 2021-02-05 | 江苏建筑职业技术学院 | Pipe gallery special-shaped pipe connecting device and connecting method |
| CN110005956A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Shell split-type Anti-freezing cryogen rotary joint |
| CN110005956B (en) * | 2019-04-30 | 2023-12-22 | 鞍山市昱虎流体设备有限公司 | Shell split type anti-freezing low-temperature fluid rotary joint |
| CN114857370A (en) * | 2022-05-06 | 2022-08-05 | 重庆鼎久管道有限公司 | Corrosion-resistant spiral steel pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050907 Termination date: 20120705 |