CN105567909B - A kind of connection sealing structure of RH annular distances supersonic speed top gun - Google Patents
A kind of connection sealing structure of RH annular distances supersonic speed top gun Download PDFInfo
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- CN105567909B CN105567909B CN201610130205.0A CN201610130205A CN105567909B CN 105567909 B CN105567909 B CN 105567909B CN 201610130205 A CN201610130205 A CN 201610130205A CN 105567909 B CN105567909 B CN 105567909B
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- Prior art keywords
- pipe
- shower nozzle
- water
- secondary case
- top gun
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Nozzles (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention provides a kind of connection sealing structure of RH annular distances supersonic speed top gun, including annular distance supersonic speed shower nozzle, main sleeve pipe, secondary case pipe, top gun afterbody, main sleeve pipe is central inner pipe respectively from inside to outside, water-cooled inner tube, marine riser, water cooling outer tube, secondary case pipe is between central inner pipe and water-cooled inner tube, main sleeve pipe welds with shower nozzle respectively, and with the grafting of top gun afterbody or welding, secondary case pipe is threadedly coupled with shower nozzle, and with top gun afterbody grafting, secondary case pipe has multiple tracks rubber seal with shower nozzle junction, main sleeve pipe and secondary case pipe have multiple tracks rubber seal with top gun afterbody splicing position.Secondary case pipe is threadedly coupled with shower nozzle, and secondary case pipe moves together with shower nozzle in process of expansion and contraction, avoids O-shaped rubber seal from being worn in shower nozzle.Main sleeve pipe and shower nozzle weld, and are moved in process of expansion and contraction together with shower nozzle, and in the relatively low top gun afterbody of temperature, abrasion and aging reduce, ensure sealing effectiveness, increase the service life O-shaped rubber seal.
Description
Technical field
The invention belongs to the injection apparatus for being used to generate the long oxygen stream of supersonic speed in metallurgy industry, more particularly to a kind of RH rings
The connection sealing structure of hole supersonic speed top gun.
Background technology
RH equipment for vacuum refining is a kind of Ferrous Metallurgy technology that last century the fifties grow up, its crucial oxygen blast
Device, is originally arranged on vacuum tank bottom, is arranged on later in the middle part of vacuum tank, is finally arranged at the top of vacuum tank, turns into by more
The water cooling top blow oxygen lance that layer sleeve pipe is formed.In the prior art, either RH-KTB top guns, RH-MFB top guns, RH-MESID top guns,
RH-PB top guns or Chinese patent 200420027046.4,200610076151.0,200820174977.5,
200820174973.7,200820174973.7,201110000083.0,201210346652.1,201310431081.6 institutes
The top gun or shower nozzle being related to, using circular hole convergent-divergent channel structure, i.e., convergent-divergent channel is typically in center, blast tube distribution
On the outside of convergent-divergent channel.Chinese Patent Application No. 2015102313132,2014103868764,2014103876370,
2014103868800th, the involved circumferential weld of the inventions such as 2015108333318 and ring slot and boundling top gun, shower nozzle use ring
Hole supersonic speed structure, supersonic airstream can wrap up pulvis and combustion gas, realize oxygen blast, dust, the refinery practice such as combustion heating
Process is carried out simultaneously.
For above-mentioned top gun structure, shower nozzle and multilayer sleeve couple mainly welding and grafting, grafting in the prior art
The O-shaped rubber seal of Shi Caiyong.Accident often occurs in actual production for this draw bail, and its reason is the building ring of top gun
Border temperature can change back and forth at 1300 DEG C~more than 1650 DEG C, gun body sleeve pipe mutual displacement when expanding with heat and contract with cold so that O-shaped rubber is close
Seal is servo-actuated abrasion at relatively high temperatures, destroys sealing property.Pipette tips structure as shown in Figure 2, water cooling outer tube is by high temperature spoke
Temperature rise, outer tube elongation when penetrating, drive shower nozzle movement welded therewith；And central inner pipe and spray with shower nozzle grafting
The water-cooled inner tube of head welding, its temperature change and water cooling outer tube are inconsistent, and collapsing length is also different, therefore drive O-shaped close
Seal is slided on shower nozzle, produces abrasion.Tail as shown in Figure 3 inserts the pipette tips structure of formula top gun, and its multilayer sleeve welds with shower nozzle
Connect or empty slotting, O-shaped rubber seal all moves to gun breech, significantly improves O-ring seal work temperature, extends the top gun life-span.
But the secondary case pipe of annular distance top gun is in high pressure oxygen environment, the gap between shower nozzle and secondary case pipe can make oxygen scurry into secondary case pipe
Inside cause danger, it is therefore necessary to sealed, and O-shaped rubber seal skimming wear at this is avoided using new draw bail.
The content of the invention
The deficiencies in the prior art in view of the above, it is an object of the invention to provide a kind of RH annular distances supersonic speed top gun
Sealing structure is connected, up to top gun destruction probability is reduced, to extend the purpose of its service life.
In order to achieve the above objects and other related objects, technical solution of the present invention is as follows：
A kind of connection sealing structure of RH annular distances supersonic speed top gun, including annular distance supersonic speed shower nozzle, main sleeve pipe, secondary case pipe,
Top gun afterbody, the secondary case pipe are connected with shower nozzle by fastening structure, limitation secondary case pipe and the relative movement of shower nozzle vertically.
Further, the main sleeve pipe is central inner pipe, water-cooled inner tube, marine riser, water cooling outer tube respectively from inside to outside, institute
Secondary case pipe is stated between central inner pipe and water-cooled inner tube, its key is outside the central inner pipe, water-cooled inner tube, water cooling of main sleeve pipe
Pipe is respectively welded with shower nozzle, and is threadedly coupled with the grafting of top gun afterbody or welding, secondary case pipe with shower nozzle, and is inserted with top gun afterbody
Connect, it is more that secondary case pipe and shower nozzle junction have multiple rubber seal, main sleeve pipe and secondary case pipe to be provided with top gun afterbody splicing position
Individual rubber seal.
It is preferred that being connected by the way of screw threads for fastening, connection is easy for installation, naturally it is also possible to using other existing connections
Mode, such as welding, clamping, it is bonded the fixed form that can prevent that secondary case pipe and shower nozzle from axially relatively moving.
Using said structure, in main sleeve pipe, combustion gas or pulvis convey in central inner pipe, high pressure oxygen central inner pipe with
Water-cooled inner tube conveys, and cooling water water inlet conveys between water-cooled inner tube and marine riser, and cooling water water outlet is outside marine riser and water cooling
Conveyed between pipe.Flame monitoring apparatus, igniter, video shooting device etc. are separately installed with 1 to 3 set secondary case pipe, and
Cooling gas is passed through on demand or is passed through combustion gas and combustion air.
As described above, the beneficial effects of the invention are as follows：Secondary case pipe is threadedly coupled with shower nozzle, the secondary case in process of expansion and contraction
Pipe moves together with shower nozzle, avoids O-shaped rubber seal from being worn in shower nozzle, ensures sealing effectiveness, increases the service life.Main set
Pipe is welded to connect with shower nozzle, is moved in process of expansion and contraction together with shower nozzle, relatively low top gun of the O-shaped rubber seal in temperature
Afterbody, abrasion and aging reduce, and ensure sealing effectiveness, increase the service life；Due to using said structure, high pressure oxygen is without letting out
Leakage, it is ensured that the security of production process, eliminate accident potential；Due to using said structure, ensure that each medium channel without
Sew mixed quick-fried.
Brief description of the drawings
Fig. 1 is the main sleeve pipe of top gun in the prior art and secondary case pipe is welded with shower nozzle and grafting sealed structural representation；
Fig. 2 is the main sleeve pipe of top gun in the prior art and secondary case pipe and shower nozzle welded seal structural representation；
Fig. 3 is RH annular distance supersonic speed boundling top gun structural representations of the embodiment of the present invention；
Fig. 4 is the main sleeve pipe of top gun and secondary case pipe and shower nozzle welding and screw connection structure schematic diagram in the embodiment of the present invention；
Fig. 5 is secondary case pipe and shower nozzle and gun breech attachment structure schematic diagram in the embodiment of the present invention.
Piece mark explanation
1 shower nozzle
2 main sleeve pipes
21 central inner pipes
22 water-cooled inner tubes
23 marine risers
24 water cooling outer tubes
3 secondary case pipes
4 top gun afterbodys
5 flame monitoring probes
6 igniters
7 rubber seal
8 screw threads
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Embodiment
Fig. 1 and Fig. 2 show traditional top gun structural representation, and the structure shown in Fig. 1 has relative slide of O-ring seal and made
Into abrasion, the problem of destroying sealing property；The gap that structure shown in Fig. 2 is present between shower nozzle and secondary case pipe can make oxygen scurry into pair
The problem of being caused danger in sleeve pipe.
As shown in Fig. 3, Fig. 4, Fig. 5, the present invention provides a kind of connection sealing structure of RH annular distances supersonic speed top gun, including ring
Hole supersonic speed shower nozzle 1, main sleeve pipe 2, secondary case pipe 3, top gun afterbody 4, the main sleeve pipe 2 be respectively from inside to outside central inner pipe 21,
Water-cooled inner tube 22, marine riser 23, water cooling outer tube 24, secondary case pipe 3 is between central inner pipe 21 and water-cooled inner tube 22.Main sleeve pipe 2
Central inner pipe 21 corresponding with shower nozzle 1, water-cooled inner tube 22, water cooling outer tube 24 weld, main sleeve pipe 2 and with the grafting of top gun afterbody 4 or
Welding, secondary case pipe 3 are stretched into the annular distance of shower nozzle 1 and are connected with shower nozzle 1 by screw thread 8, and with the grafting of top gun afterbody 4, secondary case pipe 3 and
There are multiple rubber seal 7 junction of shower nozzle 1, and main sleeve pipe 2 and secondary case pipe 3 have multiple tracks rubber seal with the splicing position of top gun afterbody 4
Circle 7.In main sleeve pipe 2, combustion gas or pulvis convey in central inner pipe 21, high pressure oxygen central inner pipe 21 and water-cooled inner tube 22 it
Between convey, cooling water water inlet conveys between water-cooled inner tube 22 and marine riser 23, and cooling water water outlet is outside marine riser 23 and water cooling
Conveyed between pipe 24.Secondary case pipe 3 is more sets, and flame monitoring apparatus 5, igniter are separately installed with 1 to 3 set secondary case pipe 3
6th, video shooting device etc., and be passed through cooling gas on demand or be passed through combustion gas and combustion air.The present invention is applied in RH vacuum
During refining furnace, it is possible to achieve oxygen decarburization, blow oxygen by adding aluminum heating, blow the functions such as combustion gas heating, powder injection desulphurization, annular distance supersonic speed collection
Beam shower nozzle can high rifle position dust, oxygen blast, extend the service life of top gun.
The assemble sequence of the present invention is as follows：Rubber seal is first sleeved in corresponding annular groove, by central inner pipe 21, secondary case
Pipe 3 is sleeved in water-cooled inner tube 22, welds shower nozzle and central inner pipe 21 first, then the secondary case pipe 3 with rubber seal 7 is inserted
Enter in stepped hole corresponding to shower nozzle and tighten screw thread, then weld nozzle component and water-cooled inner tube 22, then in the extrapolation of water-cooled inner tube 22
Water cooling outer tube 24 and the component of marine riser 23 are covered, and water cooling outer tube 24 is welded with nozzle component, is finally set with top gun afterbody.
The present invention achieves following effect applied to RH vacuum refinings with top gun embodiment：
1) secondary case pipe is threadedly coupled with shower nozzle, and secondary case pipe moves together with shower nozzle in process of expansion and contraction, avoids O-shaped rubber
Glue sealing ring wears in shower nozzle, ensures sealing effectiveness, increases the service life.
2) main sleeve pipe is welded to connect with shower nozzle, is moved in process of expansion and contraction together with shower nozzle, and O-shaped rubber seal exists
The relatively low top gun afterbody of temperature, abrasion and aging reduce, and ensure sealing effectiveness, increase the service life.
3) due to using said structure, high pressure oxygen No leakage, it is ensured that the security of production process, it is hidden to eliminate accident
Suffer from, ensure that each medium channel is spill-free mixed quick-fried.
4) the supersonic speed cluster fluidic top gun of this structure is used, main oxygen stream keeps boundling state over a longer distance,
Diameter and speed when can keep exporting in longer distance.
5) the supersonic speed cluster fluidic top gun of this structure is used, work rifle position is improved, reduces consumption of cooling-water, is extended
Top lance spray nozzle life-span；Using the supersonic speed cluster fluidic top gun of this structure, dust with oxygen blast with a rifle position while carrying out,
Shorten refining cycle.
6) present invention is applied in RH vacuum refining furnaces, it is possible to achieve oxygen decarburization, is blown oxygen by adding aluminum heating, is blown combustion gas liter
The functions such as temperature, powder injection desulphurization, annular distance supersonic speed boundling shower nozzle can high rifle position dust, oxygen blast, extend the service life of top gun.
7) nozzle structure of the present invention can install video frequency pick-up head, directly observe space situation below shower nozzle.Present invention spray
Header structure can install gas ignition device and flame monitoring instrument, realize automatic ignition and safety protection function.
Any person skilled in the art can all be carried out under the spirit and scope without prejudice to the present invention to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from disclosed spirit with
All equivalent modifications completed under technological thought or change, it should be covered by the claim of the present invention.
Claims (3)
1. a kind of connection sealing structure of RH annular distances supersonic speed top gun, including annular distance supersonic speed shower nozzle, main sleeve pipe, secondary case pipe, top
Gun breech portion, it is characterised in that：The secondary case pipe is threadedly coupled with shower nozzle, limitation secondary case pipe and the relative movement of shower nozzle vertically；
The main sleeve pipe is respectively central inner pipe, water-cooled inner tube, marine riser, water cooling outer tube from inside to outside, and the secondary case pipe is located at center
Between inner tube and water-cooled inner tube, central inner pipe, water-cooled inner tube, the water cooling outer tube of the main sleeve pipe weld with shower nozzle respectively, described
The junction of secondary case pipe and shower nozzle is provided with multiple rubber seal；The water cooling outer tube of the main sleeve pipe welds with top gun afterbody,
Central inner pipe, water-cooled inner tube, marine riser and the top gun afterbody grafting of the main sleeve pipe, the secondary case pipe and top gun afterbody grafting；
The splicing position of the main sleeve pipe and secondary case pipe and top gun afterbody is provided with multiple rubber seal.
A kind of 2. connection sealing structure of RH annular distances supersonic speed top gun according to claim 1, it is characterised in that：The master
In sleeve pipe, combustion gas or pulvis convey in central inner pipe, and high pressure oxygen conveys in central inner pipe and water-cooled inner tube, and cooling water water inlet exists
Conveyed between water-cooled inner tube and marine riser, cooling water water outlet conveys between marine riser and water cooling outer tube.
A kind of 3. connection sealing structure of RH annular distances supersonic speed top gun according to claim 1, it is characterised in that：The pair
Sleeve pipe is more sets, and flame monitoring apparatus, igniter, video shooting device are arranged in different secondary case pipes, pressed in secondary case pipe
Need to be passed through cooling gas or combustion gas and combustion air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130205.0A CN105567909B (en) | 2016-03-08 | 2016-03-08 | A kind of connection sealing structure of RH annular distances supersonic speed top gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130205.0A CN105567909B (en) | 2016-03-08 | 2016-03-08 | A kind of connection sealing structure of RH annular distances supersonic speed top gun |
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| Publication Number | Publication Date |
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| CN105567909A CN105567909A (en) | 2016-05-11 |
| CN105567909B true CN105567909B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610130205.0A Active CN105567909B (en) | 2016-03-08 | 2016-03-08 | A kind of connection sealing structure of RH annular distances supersonic speed top gun |
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| CN113621760A (en) * | 2021-08-18 | 2021-11-09 | 湖南福华信息工程有限公司 | Automatic argon blowing system of RH furnace and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2712938Y (en) * | 2004-05-14 | 2005-07-27 | 苏州市宝联机电设备制造有限公司 | Multifunctional top lance |
| CN201296765Y (en) * | 2008-11-10 | 2009-08-26 | 王�华 | Multifunctional top lance head for vacuum refining of liquid steel |
| CN101649373A (en) * | 2008-08-14 | 2010-02-17 | 管序荣 | Multifunctional spray head of refining furnace |
| CN105256107A (en) * | 2015-11-26 | 2016-01-20 | 中冶赛迪工程技术股份有限公司 | Ring groove coherent jet nozzle structure |
| CN205398672U (en) * | 2016-03-08 | 2016-07-27 | 中冶赛迪工程技术股份有限公司 | Connection seal structure of RH annular ring supersonic speed top rifle |
-
2016
- 2016-03-08 CN CN201610130205.0A patent/CN105567909B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2712938Y (en) * | 2004-05-14 | 2005-07-27 | 苏州市宝联机电设备制造有限公司 | Multifunctional top lance |
| CN101649373A (en) * | 2008-08-14 | 2010-02-17 | 管序荣 | Multifunctional spray head of refining furnace |
| CN201296765Y (en) * | 2008-11-10 | 2009-08-26 | 王�华 | Multifunctional top lance head for vacuum refining of liquid steel |
| CN105256107A (en) * | 2015-11-26 | 2016-01-20 | 中冶赛迪工程技术股份有限公司 | Ring groove coherent jet nozzle structure |
| CN205398672U (en) * | 2016-03-08 | 2016-07-27 | 中冶赛迪工程技术股份有限公司 | Connection seal structure of RH annular ring supersonic speed top rifle |
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| CN105567909A (en) | 2016-05-11 |
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