CN102979975A - Vacuum water-cooling rotary joint - Google Patents
Vacuum water-cooling rotary joint Download PDFInfo
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- CN102979975A CN102979975A CN2012104746197A CN201210474619A CN102979975A CN 102979975 A CN102979975 A CN 102979975A CN 2012104746197 A CN2012104746197 A CN 2012104746197A CN 201210474619 A CN201210474619 A CN 201210474619A CN 102979975 A CN102979975 A CN 102979975A
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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 the 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, the negative pressure of vacuum.
Background technique
In the steel-making RH vacuum degassing treatment tech, steel quality for improving, reach the purpose of double refining, vacuum pumping system must guarantee good tightness.Vacuum exhaust pipe is the one section tightness pipeline that is arranged between vacuum chamber and vacuum pump system, typically has a diameter from 1200mm to 2200mm, and limit negative pressure is 28Pa in the pipe, and the inner tube smoke temperature is up to nearly 1000 ° of C.At present the RH vacuum system is furnished with vacuum chamber upper dynamic and ladle lower-moving type dual mode.The ladle lower-moving type is steel ladle jacking, and vacuum chamber is relative with vacuum pump system static; The vacuum chamber upper dynamic is that ladle is static, and up and down relative movement is arranged between vacuum chamber and the vacuum pump system.Vacuum exhaust pipe is divided into fixed and follow-up-type because of two kinds of arrangements of vacuum chamber like this.The vacuum chamber upper dynamic does not take the following space of ladle car track substantially, is specially adapted to that underground foundation has been furnished with other equipment in the improvement project, the occasion that underground foundation can't excavate.
But moving method will solve the servo-actuated problem of vacuum exhaust pipe on the vacuum chamber, can provide a kind of and can be adapted to that the vacuum exhaust pipe size is large, the pipeline connecting device of high temperature and the characteristic such as can work under negative pressure of vacuum.Because the requirement that these are harsh, the arrangement of moving method almost is not used on the vacuum chamber 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, solves 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:
The vacuum water-cooling swivel joint, include the left flange and the right flange that connect vacuum exhaust pipe, it is characterized in that: in the middle of two flanges, be adjacent to the pipeline place water-cooled kernel is installed, the water-cooled kernel is that annular wraps pipe circumference, be provided with water-cooling tube at the water-cooled kernel, described water-cooled kernel arranged outside has the pivoting support of annular, pivoting support is divided into inner ring and the outer ring is two-layer, and can mutually rotate, the water-cooled kernel is connected with left flange and pivoting support inner ring by the bolt group, the water-cooled kernel also is provided with ring-shaped jacket outward, and 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, in pivoting support outer ring side arrangement 3 grease fittings is arranged, and it is uniform that 3 grease fittings are 120 ° of directions along circumference.Single-row ball type slewing bearing can bear larger axial and radial load, simultaneously because the global characteristics of ball can provide certain axial angle compensation; Side, pivoting support outer ring is by three oil nozzle filled high-temperatures of uniform 120 ° of directions lubricating grease.
In such scheme, be bolted a circle dust-proof cover on the described pivoting support outer ring, prevent that 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 equipped with lip combination 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, the lip-type packing lip compresses water-cooled kernel outer wall, the O-ring seals lock ring is in the lip-type packing outer ring, form double sealing structure, the lip-type packing lip adopts the 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 the waterway, and water bloking piece evenly is divided into waterway inside the maze type space that is interconnected.
In such scheme, described water-cooling tube includes intake pipe and outlet pipe, is communicated with respectively waterway, and the exit position of intake pipe and outlet pipe arranges respectively the marginal position of left flange or right flange.
In such scheme, described water-cooled kernel and overcoat end have the sealing dovetail groove, so that good sealing to be provided.
Beneficial effect of the present invention is:
The Installation and Debugging of this device are convenient, can adapt to that the exhaust tube size is large, the environment of thermal extremes flue gas and negative pressure of vacuum, good cooling effect is provided, the arrangement that particularly can adapt to moving method on the vacuum chamber, can rotate in the joint, satisfy the servo-actuated needs of vacuum chamber, solve the servo-actuated problem of vacuum exhaust pipe.
Description of drawings
Fig. 1 is embodiment of the invention overall structure sectional view
Fig. 2 is the local I enlarged view of Fig. 1
Fig. 3 is embodiment of the invention lip combined seal ring overall structure sectional view
Fig. 4 is embodiment of the 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 among Fig. 4
Fig. 8 is embodiment of the invention overall structure stereogram
Wherein: the left vacuum exhaust pipe 2-of 1-static sealing ring 3-water-cooling tube 4-pivoting support 5-dust-proof cover
The left flange of the 6-lip combined seal ring 7-overcoat 8-water-cooled right vacuum exhaust pipe 11-of the right flange 10-of kernel 9-
12-vacuum water-cooling swivel joint 13-the first water-cooling bend 14-the 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
The 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 the right flange 12 that connect vacuum exhaust pipe, in the middle of two flanges, be adjacent to the pipeline place water-cooled kernel 8 is installed, water-cooled kernel 8 wraps pipe circumference for annular, be provided with water-cooling tube 3 at water-cooled kernel 8, described water-cooled kernel 8 arranged outside have the pivoting support 4 of annular, pivoting support 4 is divided into inner ring and the outer ring is 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 rings by the bolt group, the water-cooled kernel 8 outer ring-shaped jackets 7 that also are provided with, overcoat 7 is connected with right flange 9 and pivoting support 4 outer rings by another group bolt.
In the present embodiment, described pivoting support 4 is single-row ball type slewing bearing, in pivoting support 4 outer ring side arrangement 3 grease fittings is arranged, and it is uniform that 3 grease fittings are 120 ° of directions along circumference.Single-row ball type slewing bearing can bear larger axial and radial load, simultaneously because the global characteristics of ball can provide certain axial angle compensation; Side, pivoting support 4 outer ring is by three oil nozzle filled high-temperatures of uniform 120 ° of directions lubricating grease.
In the present embodiment, as being fixed with a circle dust-proof cover 5 by hexagon socket head cap screw on Fig. 1 and pivoting support 4 outer rings shown in Figure 8, prevent that dust from entering pivoting support 4 inside in a large number.
In the present embodiment, 11 of water-cooled kernel 8 as shown in Figures 2 and 3 and left flanges are equipped with static sealing ring 2, and 7 in water-cooled kernel 8 and overcoat are equipped with lip combined seal ring 6.
In the present embodiment, the combined moving black box that lip combined seal ring 6 as shown in Figures 2 and 3 forms for lip-type packing 16 and O-ring seals 15, lip-type packing 16 lips compress water-cooled kernel 8 outer walls, O-ring seals 15 lock rings are in lip-type packing 16 outer rings, form double sealing structure, lip-type packing 16 lips adopt the filling carbon fiber polytetrafluoroethylmaterial material.
In the present embodiment, be welded by water-cooled kernel outer wall 20 and water-cooled kernel inwall 19 such as Fig. 4 and water-cooled kernel 8 shown in Figure 6, water-cooled kernel 8 inside are provided with waterway, are provided with water bloking piece 18 in the waterway, and water bloking piece 18 evenly is divided into the maze type space that is interconnected with waterway inside.
In the present embodiment, include intake pipe 21 and outlet pipe 22 such as Fig. 5 and water-cooling tube 3 shown in Figure 7, be communicated with respectively waterway, the exit position of intake pipe 21 arranges left flange 11 edges, and the exit position of outlet pipe 22 arranges right flange 9 edges.
In the present embodiment, described water-cooled kernel 8 has the sealing dovetail groove with overcoat 7 ends, so that good sealing to be provided.
The left vacuum exhaust pipe 1 of apparatus of the present invention and peripheral equipment and right vacuum exhaust pipe 10 adopt the mounting type of welding, and Installation and Debugging are convenient.
In the as installed using process, this section water-cooled exhaust tube is comprised of three vacuum water-cooling swivel joints 12 and the first water-cooling bend 13, the second water-cooling bend 13 as shown in Figure 8, left end is that fixed end links to each other with the vacuum pump system entrance, and right-hand member is that movable end links to each other with the vacuum system outlet.Therefore vacuum chamber moves up and down, and the water-cooled exhaust tube can rotate in the joint, and it is servo-actuated to follow vacuum chamber, and it is motionless that vacuum pump system keeps.Vacuum water-cooling swivel joint air pressure inside is 28Pa in this example, and flue-gas temperature is 1000 ° of C, and water-cooled exhaust tube diameter is 1600mm.
The present invention can adapt to that the exhaust tube size is large, the environment of thermal extremes flue gas and negative pressure of vacuum, particularly can adapt to the arrangement of moving method on the 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 sizes (diameter is from 1200mm to 2200mm).
More than explanation only is Application Example of the present invention, certainly can not limit with this interest field of the present invention, and the equivalence of therefore doing according to the present patent application claim changes, and still belongs to protection scope of the present invention.
Claims (8)
1. vacuum water-cooling swivel joint, include the left flange and the right flange that connect vacuum exhaust pipe, it is characterized in that: in the middle of two flanges, be adjacent to the pipeline place water-cooled kernel is installed, the water-cooled kernel is that annular wraps pipe circumference, be provided with water-cooling tube at the water-cooled kernel, described water-cooled kernel arranged outside has the pivoting support of annular, pivoting support is divided into inner ring and the outer ring is two-layer, and can mutually rotate, the water-cooled kernel is connected with left flange and pivoting support inner ring by the bolt group, the water-cooled kernel also is provided with ring-shaped jacket outward, and 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, it is characterized in that: described pivoting support is single-row ball type slewing bearing, in pivoting support outer ring side arrangement 3 grease fittings is arranged, it is uniform that 3 grease fittings are 120 ° of directions along circumference.
3. vacuum water-cooling swivel joint as claimed in claim 1 or 2 is characterized in that: be bolted a circle dust-proof cover on the described pivoting support outer ring.
4. vacuum water-cooling swivel joint as claimed in claim 1 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 equipped with lip combination motive sealing.
5. vacuum water-cooling swivel joint as claimed in claim 4, it is characterized in that: described lip combined seal ring is the combined moving black box that lip-type packing and O-ring seals form, the lip-type packing lip compresses water-cooled kernel outer wall, the O-ring seals lock ring forms double sealing structure in the lip-type packing outer ring.
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 the waterway, water bloking piece evenly is divided into waterway inside the maze type space that is interconnected.
7. vacuum water-cooling swivel joint as claimed in claim 1, it is characterized in that: described water-cooling tube includes intake pipe and outlet pipe, is communicated with respectively waterway, and the exit position of intake pipe and outlet pipe arranges respectively the marginal position of left flange or right flange.
8. such as claim 1 or 6 described vacuum water-cooling swivel joints, it is characterized in that: described water-cooled kernel and overcoat end have the 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 |
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| 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 true CN102979975A (en) | 2013-03-20 |
| CN102979975B CN102979975B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210474619.7A Active CN102979975B (en) | 2012-11-21 | 2012-11-21 | Vacuum water-cooling rotary joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112523714A (en) * | 2020-12-04 | 2021-03-19 | 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 (7)
| 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 |
| US20040012199A1 (en) * | 2001-07-02 | 2004-01-22 | Beach Matthew H | Journal bearing mounted hub seal rotary 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 |
-
2012
- 2012-11-21 CN CN201210474619.7A patent/CN102979975B/en active Active
Patent Citations (7)
| 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 |
| US20040012199A1 (en) * | 2001-07-02 | 2004-01-22 | Beach Matthew H | Journal bearing mounted hub seal rotary 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112523714A (en) * | 2020-12-04 | 2021-03-19 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102979975B (en) | 2015-04-15 |
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