CN102979975B - Vacuum water-cooling rotary joint - Google Patents
Vacuum water-cooling rotary joint Download PDFInfo
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- CN102979975B CN102979975B CN201210474619.7A CN201210474619A CN102979975B CN 102979975 B CN102979975 B CN 102979975B CN 201210474619 A CN201210474619 A CN 201210474619A CN 102979975 B CN102979975 B CN 102979975B
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Abstract
The invention provides a vacuum water-cooling rotary joint for a vacuum extraction pipe under the condition of large size, high temperature and vacuum negative pressure in the RH vacuum molten-steel treatment process. The vacuum water-cooling rotary joint comprises a left flange and a right flange which are connected with the vacuum extraction pipe, wherein a water-cooling inner core is arranged at the position between the two flanges close to the pipeline, and is ring-shaped to wrap the periphery of the pipeline; the water-cooling inner core is provided with a cooling water pipe; the outer side of the water-cooling inner core is provided with a ring-shaped rotary support; the rotary support comprises an inner ring and an outer ring which can rotate mutually; the water-cooling inner core is connected with the left flange and the inner ring of the rotary support by a bolt group, and is also externally provided with a ring-shaped outer sleeve; and the outer sleeve is connected with the right flange and the outer ring of the rotary support by anthe other group of bolts. The vacuum water-cooling rotary joint provided by the invention is convenient in installation and debugging, can adapt to the environment with large-size extraction pipes, the extremely-high-temperature flue gas and vacuum negative pressure and solves the following problem of the vacuum extraction pipe.
Description
Technical field
The invention belongs to metallurgy industry apparatus field, be specifically related to the cold swivel joint of the effective vacuum water of vacuum suction under a kind of large scale for RH Vacuum Steel water treatment technology link, high temperature, negative pressure of vacuum.
Background technique
In steel-making RH vacuum degassing treatment tech, steel quality for improving, reaching the object of double refining, vacuum pumping system must ensure good tightness.Vacuum exhaust pipe is the one section of tightness pipeline be arranged between vacuum chamber and vacuum pump system, typically has a diameter from 1200mm to 2200mm, and in pipe, extreme negative pressure is 28Pa, the nearly 1000 ° of C of inner tube smoke temperatures as high.Current RH vacuum system be furnished with vacuum chamber upper dynamic and ladle lower-moving type two kinds of modes.Ladle lower-moving type is steel ladle jacking, vacuum chamber and vacuum pump system geo-stationary; Vacuum chamber upper dynamic is that ladle is static, has upper and lower relative movement between vacuum chamber and vacuum pump system.Such vacuum exhaust pipe is divided into fixed and follow-up-type because of two kinds of arrangements of vacuum chamber.Vacuum chamber upper dynamic does not take below ladle car track space substantially, is specially adapted to underground foundation in improvement project and has been furnished with other equipment, the occasion that underground foundation cannot excavate.
But dynamic method will solve the servo-actuated problem of vacuum exhaust pipe on vacuum chamber, can provide a kind of and can be adapted to that vacuum exhaust pipe size is large, the pipeline connecting device of high temperature and the characteristic such as to work under negative pressure of vacuum.Because the requirement of these harshnesses, on vacuum chamber, the arrangement of dynamic method is not almost used at home.
Summary of the invention
Technical problem to be solved by this invention is the deficiency for above-mentioned existence, provides a kind of Installation and Debugging convenient, can adapt to the environment of large scale exhaust tube, thermal extremes flue gas and negative pressure of vacuum, solve the vacuum water-cooling swivel joint of the servo-actuated problem of vacuum exhaust pipe.
The technical solution adopted for the present invention to solve the technical problems is:
Vacuum water-cooling swivel joint, include the left flange and right flange that connect vacuum exhaust pipe, it is characterized in that: in the middle of two flanges, be adjacent to pipeline place water-cooled kernel is installed, water-cooled kernel is that annular wraps pipe circumference, water-cooled kernel is provided with water-cooling tube, described water-cooled kernel arranged outside has the pivoting support of annular, pivoting support be divided into inner ring and outer ring two-layer, and can mutually rotate, water-cooled kernel is connected with left flange and pivoting support inner ring by bolt group, water-cooled kernel is also provided with ring-shaped jacket outward, overcoat is connected with right flange and pivoting support outer ring by another group bolt.
In such scheme, described pivoting support is single-row ball type slewing bearing, has 3 grease fittings in pivoting support outer ring side arrangement, and 3 grease fittings are circumferentially uniform in 120 ° of directions.Single-row ball type slewing bearing can bear larger axis and radial load, simultaneously due to the global characteristics of ball, certain axial angle can be provided to compensate; Side, pivoting support outer ring is by three, uniform 120 ° of directions oil nozzle filled high-temperature lubricating grease.
In such scheme, described pivoting support outer ring is bolted a circle dust-proof cover, has prevented dust from entering pivoting support inside in a large number.
In such scheme, between described water-cooled kernel and left flange, static sealing ring is housed, water-cooled kernel and outer inner room are provided with lip and combine motive sealing.
In such scheme, described lip combined seal ring is the combined moving black box that lip-type packing and O-ring seals form, lip-type packing lip compresses water-cooled kernel outer wall, O-ring seals lock ring is in lip-type packing outer ring, form double sealing structure, lip-type packing lip adopts filling carbon fiber polytetrafluoroethylmaterial material.
In such scheme, described water-cooled kernel is welded by water-cooled kernel outer wall and water-cooled kernel inwall, and water-cooled kernel inside is provided with waterway, is provided with water bloking piece in waterway, and water bloking piece is evenly by maze type space that waterway inside division becomes to be interconnected.
In such scheme, described water-cooling tube includes intake pipe and outlet pipe, is communicated with waterway respectively, and the exit position of intake pipe and outlet pipe arranges the marginal position of left flange or right flange respectively.
In such scheme, described water-cooled kernel and overcoat end have sealing dovetail groove, to provide good sealing.
Beneficial effect of the present invention is:
The Installation and Debugging of this device are convenient, can adapt to that exhaust tube size is large, the environment of thermal extremes flue gas and negative pressure of vacuum, good cooling effect is provided, particularly can adapt to the arrangement of dynamic method on vacuum chamber, can rotate in joint, meet the needs that vacuum chamber is servo-actuated, solve the servo-actuated problem of vacuum exhaust pipe.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention overall structure sectional view
Fig. 2 is the local I enlarged view of Fig. 1
Fig. 3 is embodiment of the present invention lip combined seal ring overall structure sectional view
Fig. 4 is embodiment of the present invention water-cooled inner core sectional view
Fig. 5 is the A-A sectional view of Fig. 4
Fig. 6 is the local I I enlarged view of Fig. 4
Fig. 7 is water-cooled kernel maze type water cavity unfolded drawing in Fig. 4
Fig. 8 is embodiment of the present invention overall structure stereogram
Wherein: 1-left vacuum exhaust pipe 2-static sealing ring 3-water-cooling tube 4-pivoting support 5-dust-proof cover
The left flange of 6-lip combined seal ring 7-overcoat 8-water-cooled kernel 9-right flange 10-right vacuum exhaust pipe 11-
12-vacuum water-cooling swivel joint 13-first water-cooling bend 14-second water-cooling bend 15-O RunddichtringO
16-lip-type packing 17-bolt hole 18-water bloking piece 19-water-cooled kernel inwall 20-water-cooled kernel outer wall 21-intake pipe
22-outlet pipe.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated:
Vacuum water-cooling swivel joint as shown in Figure 1, include the left flange 11 and right flange 9 that connect vacuum exhaust pipe, in the middle of two flanges, be adjacent to pipeline place water-cooled kernel 8 is installed, water-cooled kernel 8 wraps pipe circumference for annular, water-cooled kernel 8 is provided with water-cooling tube 3, described water-cooled kernel 8 arranged outside has the pivoting support 4 of annular, pivoting support 4 be divided into inner ring and outer ring two-layer, and can mutually rotate, left flange 11 is provided with bolt hole 17, water-cooled kernel 8 is connected with left flange 11 and pivoting support 4 inner ring by bolt group, water-cooled kernel 8 is outer is also provided with ring-shaped jacket 7, overcoat 7 is connected with right flange 9 and pivoting support 4 outer ring by another group bolt.
In the present embodiment, described pivoting support 4 is single-row ball type slewing bearing, and in pivoting support 4 outer ring, side arrangement has 3 grease fittings, and 3 grease fittings are circumferentially uniform in 120 ° of directions.Single-row ball type slewing bearing can bear larger axis and radial load, simultaneously due to the global characteristics of ball, certain axial angle can be provided to compensate; Side, pivoting support 4 outer ring is by three, uniform 120 ° of directions oil nozzle filled high-temperature lubricating grease.
In the present embodiment, pivoting support 4 outer ring is as illustrated in figures 1 and 8 fixed with a circle dust-proof cover 5 by hexagon socket head cap screw, prevents dust from entering pivoting support 4 in a large number inner.
In the present embodiment, between water-cooled kernel 8 as shown in Figures 2 and 3 and left flange 11, static sealing ring 2 is housed, lip combined seal ring 6 is installed between water-cooled kernel 8 and overcoat 7.
In the present embodiment, lip combined seal ring 6 is as shown in Figures 2 and 3 the combined moving black box that lip-type packing 16 forms with O-ring seals 15, lip-type packing 16 lip compresses water-cooled kernel 8 outer wall, O-ring seals 15 lock ring is in lip-type packing 16 outer ring, form double sealing structure, lip-type packing 16 lip adopts filling carbon fiber polytetrafluoroethylmaterial material.
In the present embodiment, water-cooled kernel 8 is as shown in Figure 4 and Figure 6 welded by water-cooled kernel outer wall 20 and water-cooled kernel inwall 19, water-cooled kernel 8 inside is provided with waterway, is provided with water bloking piece 18 in waterway, the maze type space that waterway inside division evenly becomes to be interconnected by water bloking piece 18.
In the present embodiment, water-cooling tube 3 as shown in figure 5 and figure 7 includes intake pipe 21 and outlet pipe 22, is communicated with waterway respectively, and the exit position of intake pipe 21 arranges left flange 11 edge, and the exit position of outlet pipe 22 arranges right flange 9 edge.
In the present embodiment, described water-cooled kernel 8 has sealing dovetail groove, to provide good sealing with overcoat 7 end.
Apparatus of the present invention adopt with the left vacuum exhaust pipe of peripheral equipment 1 and right vacuum exhaust pipe 10 mounting type welded, and Installation and Debugging are convenient.
In as installed using process, this section of water-cooled exhaust tube is made up of three vacuum water-cooling swivel joints 12 and the first water-cooling bend 13, second water-cooling bend 13 as shown in Figure 8, left end is that fixed end is connected with vacuum pump system entrance, and right-hand member is that movable end exports with vacuum system and is connected.Vacuum chamber moves up and down, and water-cooled exhaust tube can rotate in joint, and it is servo-actuated therefore can to follow vacuum chamber, and vacuum pump system keeps motionless.In this example, vacuum water-cooling swivel joint air pressure inside is 28Pa, and flue-gas temperature is 1000 ° of C, and water-cooled exhaust tube diameter is 1600mm.
The present invention can adapt to that exhaust tube size is large, the environment of thermal extremes flue gas and negative pressure of vacuum, particularly can adapt to the arrangement of dynamic method on vacuum chamber, structural type of the present invention can be extended to corresponding size according to various tonnage RH vacuum treatment installation vacuum exhaust pipe size (diameter is from 1200mm to 2200mm).
More than illustrate and be only Application Example of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalence change that the present patent application the scope of the claims is done, still belong to protection scope of the present invention.
Claims (8)
1. vacuum water-cooling swivel joint, include the left flange and right flange that connect vacuum exhaust pipe, it is characterized in that: in the middle of two flanges, be adjacent to pipeline place water-cooled kernel is installed, water-cooled kernel is that annular wraps pipe circumference, water-cooled kernel is provided with water-cooling tube, described water-cooled kernel arranged outside has the pivoting support of annular, pivoting support be divided into inner ring and outer ring two-layer, and can mutually rotate, water-cooled kernel is connected with left flange and pivoting support inner ring by bolt group, water-cooled kernel is also provided with ring-shaped jacket outward, overcoat is connected with right flange and pivoting support outer ring by another group bolt.
2. vacuum water-cooling swivel joint as claimed in claim 1, is characterized in that: described pivoting support is single-row ball type slewing bearing, has 3 grease fittings in pivoting support outer ring side arrangement, and 3 grease fittings are circumferentially uniform in 120 ° of directions.
3. vacuum water-cooling swivel joint as claimed in claim 1 or 2, is characterized in that: described pivoting support outer ring has been bolted a circle dust-proof cover.
4. vacuum water-cooling swivel joint as claimed in claim 1, it is characterized in that: between described water-cooled kernel and left flange, static sealing ring is housed, water-cooled kernel and outer inner room are provided with lip and combine dynamic seal ring.
5. vacuum water-cooling swivel joint as claimed in claim 4, it is characterized in that: described lip combination dynamic seal ring is the combined moving black box that lip-type packing and O-ring seals form, lip-type packing lip compresses water-cooled kernel outer wall, O-ring seals lock ring, in lip-type packing outer ring, forms double sealing structure.
6. vacuum water-cooling swivel joint as claimed in claim 1, it is characterized in that: described water-cooled kernel is welded by water-cooled kernel outer wall and water-cooled kernel inwall, water-cooled kernel inside is provided with waterway, be provided with water bloking piece in waterway, water bloking piece is evenly by maze type space that waterway inside division becomes to be interconnected.
7. vacuum water-cooling swivel joint as claimed in claim 1, is characterized in that: described water-cooling tube includes intake pipe and outlet pipe, is communicated with waterway respectively, the exit position of intake pipe and outlet pipe, arranges the marginal position of left flange or right flange respectively.
8. the vacuum water-cooling swivel joint as described in claim 1 or 6, is characterized in that: described water-cooled kernel and overcoat end have sealing dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210474619.7A CN102979975B (en) | 2012-11-21 | 2012-11-21 | Vacuum water-cooling rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210474619.7A CN102979975B (en) | 2012-11-21 | 2012-11-21 | Vacuum water-cooling rotary joint |
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| Publication Number | Publication Date |
|---|---|
| CN102979975A CN102979975A (en) | 2013-03-20 |
| CN102979975B true CN102979975B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210474619.7A Active CN102979975B (en) | 2012-11-21 | 2012-11-21 | Vacuum water-cooling rotary joint |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106195095A (en) * | 2016-07-13 | 2016-12-07 | 湖北航天技术研究院特种车辆技术中心 | A kind of hydro-pneumatic spring |
| CN112523714B (en) * | 2020-12-04 | 2021-09-10 | 牡丹江力能石油工具有限公司 | High-pressure wear-resistant anti-corrosion automatic deviation-adjusting wellhead sealing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2573827Y (en) * | 2001-06-29 | 2003-09-17 | 重庆钢铁设计研究院 | Swivel joint |
| JP2004084691A (en) * | 2002-08-22 | 2004-03-18 | Eagle Ind Co Ltd | Rotary joint |
| CN2918948Y (en) * | 2006-05-31 | 2007-07-04 | 浙江柏润液压有限公司 | Multiple-pipe rotary connector for steel-melting furnace cooling |
| CN201170315Y (en) * | 2008-01-25 | 2008-12-24 | 攀枝花钢铁有限责任公司机械制造分公司 | Large-sized high-temperature resistant mechanical combined gas lock system |
| CN201343549Y (en) * | 2009-02-12 | 2009-11-11 | 上海瑞璞机电科技有限公司 | Stationary multifunctional top lance sealing protection device for molten steel vacuum refining |
| CN202501132U (en) * | 2012-03-02 | 2012-10-24 | 江苏德威机械设备有限公司 | Low-temperature rotary joint used for fluid delivery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7004509B2 (en) * | 2001-07-02 | 2006-02-28 | The Johnson Corporation | Journal bearing mounted hub seal rotary joint |
-
2012
- 2012-11-21 CN CN201210474619.7A patent/CN102979975B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2573827Y (en) * | 2001-06-29 | 2003-09-17 | 重庆钢铁设计研究院 | Swivel joint |
| JP2004084691A (en) * | 2002-08-22 | 2004-03-18 | Eagle Ind Co Ltd | Rotary joint |
| CN2918948Y (en) * | 2006-05-31 | 2007-07-04 | 浙江柏润液压有限公司 | Multiple-pipe rotary connector for steel-melting furnace cooling |
| CN201170315Y (en) * | 2008-01-25 | 2008-12-24 | 攀枝花钢铁有限责任公司机械制造分公司 | Large-sized high-temperature resistant mechanical combined gas lock system |
| CN201343549Y (en) * | 2009-02-12 | 2009-11-11 | 上海瑞璞机电科技有限公司 | Stationary multifunctional top lance sealing protection device for molten steel vacuum refining |
| CN202501132U (en) * | 2012-03-02 | 2012-10-24 | 江苏德威机械设备有限公司 | Low-temperature rotary joint used for fluid delivery |
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| CN102979975A (en) | 2013-03-20 |
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