CN201660658U - Oxygen lance nitrogen sealing device - Google Patents
Oxygen lance nitrogen sealing device Download PDFInfo
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- CN201660658U CN201660658U CN2010201615161U CN201020161516U CN201660658U CN 201660658 U CN201660658 U CN 201660658U CN 2010201615161 U CN2010201615161 U CN 2010201615161U CN 201020161516 U CN201020161516 U CN 201020161516U CN 201660658 U CN201660658 U CN 201660658U
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- flow deflector
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Abstract
The utility model discloses an oxygen lance nitrogen sealing device, which comprises a nitrogen sealing seat (3) and a nitrogen sealing plug (2), wherein the nitrogen sealing plug (2) comprises an annular sealing cover plate (9), a support plate (6) is arranged on the inner ring wall of the sealing cover plate (9), the upper end surface and the lower end surface of the support plate (6) are respectively provided with a first positioning plate (5) and a second positioning plate (8), a first sealing plate (7) and a second sealing plate (7') are parallelly arranged between the first positioning plate (5) and the second positioning plate (8), a first flow guide plate (10) and a second flow guide plate (11) which are connected through a connecting plate (13) are arranged between the second positioning plate (8) and a third positioning plate (12), and a first ring sealing element (r) is arranged between the first flow guide plate (10) and the second flow guide plate (11). The structure can reach better sealing effect on the basis of not increasing the nitrogen gas consumption, reduces the difficulty of the processing manufacture, and reduces the manufacture cost.
Description
Technical field
The utility model relates to a kind of tightness system of oxygen muzzle of the converter waste heat boiler section of moving.
Background technology
GB6222-2005 " industrial enterprise's gas safety rules " 5.6.2.1 bar regulation: the coal gas of converter movable gas hood or fixedly petticoat pipe should adopt water cooling, cover mouthful inside and outside differential pressure keeps a stable pressure-fired.Charge cavity on the petticoat pipe, oxygen rifle, sublance patchhole and feed bin etc. should seal and fill nitrogen, keep malleation.At present, converter waste heat boiler oxygen muzzle and sublance mouth be sealed with three kinds of structure formations: nitrogen blocking, nitrogen seal ring, channel seal etc.The structure formation of existing nitrogen seal device generally all constitutes air curtain with pore or tracheae, causes complex structure, make trouble, and sealing effectiveness is not really desirable.The unfavorable major cause of sealing effectiveness has 2, and the air curtain that first reason is made up of the air-flow of pore and tracheae ejection is imperfect, often has flue gas to emerge from the root of pore or tracheae, and these pores or tracheae are smaller, result in blockage easily.Second reason is the product design complex structure, requires the precision of manufacturing higher, and existing manufacturing means commonly used can not satisfy process requirement of equipment.
The utility model content
The purpose of this utility model provides a kind of oxygen nitrogen seal device of good sealing effect.
To achieve these goals, by the following technical solutions:
A kind of oxygen rifle nitrogen seal device, described oxygen rifle nitrogen seal device comprise nitrogen envelope seat and nitrogen blocking, it is characterized in that:
The nitrogen blocking comprises: the annular seal cover board, and the internal ring wall of seal cover board is provided with back up pad, and back up pad upper surface and lower surface are respectively arranged with strongback one and strongback two; Sealing plate one, sealing plate two parallel being arranged between strongback one and the strongback two; Be provided with the flow deflector one and the flow deflector two that link to each other by web plate between strongback two and the strongback three; Has first ring seal between flow deflector one and the flow deflector two;
Nitrogen envelope seat comprises: by chamber outside plate, lower cover, upper cover plate, be arranged on the chamber inner panel one of upper cover plate lower surface and be arranged on the loop buffer nitrogen chamber that the chamber inner panel two of lower cover upper surface is formed; Have second ring seal between described chamber inner panel one and the chamber inner panel two, described chamber outside plate is provided with into nitrogen tube;
The width of described second ring seal is greater than the width of first ring seal;
When the nitrogen blocking dropped on the nitrogen envelope seat, first ring seal and second ring seal should be in the same plane.
In order to guarantee the better seal effect, the lower surface of described seal cover board is provided with annular recesses.
The cross section of described groove is isosceles right triangle or rectangle.
Be the right angle between described flow deflector one and the flow deflector two.
When guaranteeing that the nitrogen blocking falls, an air curtain chamber that forms with nitrogen envelope seat has better seal, and strongback three and lower cover have alternating share.
The beneficial effects of the utility model are:
The utility model mechanism is simple, has reduced the difficulty of processing and manufacturing, has reduced manufacturing cost.The air curtain that adopts the mode of air curtain sealing to jet is complete, good sealing effect, and the sealing effectiveness of labyrinth seal when also having increased nitrogen blocking and nitrogen envelope and being combined together.Owing to do not have the pore or the tubule of original technology in the utility model, be difficult for blocking simultaneously.
Description of drawings
Fig. 1 is the utility model embodiment and part 1, part 4 bonded one-piece construction simplified schematic diagram;
Fig. 2 is the partial cutaway schematic of the utility model embodiment;
Fig. 3 is the diagrammatic cross-section after part 2 and part 3 merges among Fig. 2;
Fig. 4 is an A portion enlarged diagram among Fig. 3.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
As shown in Figures 1 to 4,
Nitrogen blocking 2 is divided into 3 parts:
First part is a seal cover board 9, and with contact surface one side of upper cover plate 14 6 road cross sections being arranged is the annular recesses of isosceles right triangle; Groove depth is 10mm, and two separation are 30mm.
Second section is served as reasons and is fixed in the labyrinth seal chamber that 4 doughnut-shaped steel plates on the back up pad 6 are formed, i.e. strongback 1, strongback 28, sealing plate one 7, sealing plate two 7`; Be spaced apart 10～14mm between each steel plate.The structure of this labyrinth seal can form inner high pressure area, prevent entering of extraneous gas, and sealing effectiveness own is relatively good.
Third part is the nitrogen chamber of being made up of strongback 28, flow deflector 1, flow deflector 2 11, strongback 3 12 and oxygen rifle 1 outside surface.
What nitrogen envelope seat 3 comprised that forward (FWD) has a nozzle flange 19 advances nitrogen tube 18, buffering nitrogen chamber B and air curtain chamber C.Buffering nitrogen chamber B is surrounded by chamber outside plate 20, lower cover 17, upper cover plate 14, the chamber inner panel 2 16 that is arranged on the chamber inner panel 1 of upper cover plate 14 lower surfaces and is arranged on lower cover 17 upper surfaces.Air curtain chamber C is surrounded by chamber inner panel 1, chamber inner panel 2 16, lower cover 17, upper cover plate 14, seal cover board 9 flow deflectors 1 and flow deflector 2 11.
The angle that 90 degree are arranged between the flow deflector 1 of nitrogen blocking 2 upper makeup rings envelope and the flow deflector 2 11.Guarantee that the second ring seal R of first ring seal r of nitrogen blocking 2 and nitrogen envelope seat 3 is on same horizontal plane, and the width of the second ring seal R (about about 14mm) is greater than the width (about about 10mm) of the first ring seal r after nitrogen blocking 2 and 3 cooperations of nitrogen envelope seat.Certainly the ring seal width of nitrogen envelope seat 3 requires to adjust according to reality, so that the restriction nitrogen use level.
The flow deflector 1 that nitrogen blocking 2 is formed ring seal is connected by the web plate 13 that 3 120 degree are circular layout with flow deflector 2 11.
When oxygen rifle 1 promoted, the block 21 that is positioned on oxygen rifle 1 outer wall stopped strongback 3 12, and nitrogen blocking 2 separates with nitrogen envelope seat 3, advanced nitrogen tube 18 on the nitrogen envelope seat 3, and ejection nitrogen, nitrogen form air curtain and seal through the second space R.The air curtain of such sealing means ejection is complete, can carry out effective seal.
After oxygen rifle 1 falls, oxygen muzzle 4 passes nitrogen envelope seat 3, nitrogen blocking 2 and nitrogen envelope seat 3 lump together, ring seal position by nitrogen envelope 3 a straight nitrogen flushing blocking 2 of air-flow that spray, because the space of the first ring seal r is less than the space of the second ring seal R, buffering nitrogen chamber B and air curtain chamber C have formed two high pressure areas like this, can effectively avoid inner flue gas of the stove to overflow outside the stove.
Above structure not only can be used for the nitrogen sealing of oxygen, can be used in equally in the sublance nitrogen tightness system.
The utility model can also be applied in the equipment of the other field similar with oxygen rifle hole seal request.This programme is simple in structure, and is easily manufactured, is difficult for stopping up, and sealing effectiveness is good, long service life.
The size of parts and part can be adjusted to some extent according to the specific requirement of equipment among the figure, only is explanation thinking of the present utility model and requirement shown in the accompanying drawing, and is not as qualification of the present utility model.As long as of the present utility model be in the connotation scope, all will drop in claims scope of the present utility model the variation of the above exemplary, distortion.
Claims (5)
1. oxygen rifle nitrogen seal device, described oxygen rifle nitrogen seal device comprise nitrogen envelope seat (3) and a nitrogen blocking (2), it is characterized in that:
Nitrogen blocking (2) comprising: annular seal cover board (9), and the internal ring wall of seal cover board (9) is provided with back up pad (6), and back up pad (6) upper surface and lower surface are respectively arranged with strongback one (5) and strongback two (8); Sealing plate one (7), sealing plate two (7) parallel being arranged between strongback one (5) and the strongback two (8); Be provided with the flow deflector one (10) and the flow deflector two (11) that link to each other by web plate (13) between strongback two (8) and the strongback three (12); Has first ring seal (r) between flow deflector one (10) and the flow deflector two (11);
Nitrogen envelope seat (3) comprising: by chamber outside plate (20), lower cover (17), upper cover plate (14), be arranged on the chamber inner panel one (15) of upper cover plate (14) lower surface and be arranged on the loop buffer nitrogen chamber (B) that the chamber inner panel two (16) of lower cover (17) upper surface is formed; Have second ring seal (R) between described chamber inner panel one (15) and the chamber inner panel two (16), described chamber outside plate (20) is provided with into nitrogen tube (18);
The width of described second ring seal (R) is greater than the width of first ring seal (r);
When nitrogen blocking (2) dropped on the nitrogen envelope seat (3), first ring seal (r) and second ring seal (R) should be in the same plane.
2. oxygen rifle nitrogen seal device as claimed in claim 1 is characterized in that: the lower surface of described seal cover board (9) is provided with annular recesses.
3. oxygen rifle nitrogen seal device as claimed in claim 2 is characterized in that: the cross section of described groove is isosceles right triangle or rectangle.
4. oxygen rifle nitrogen seal device as claimed in claim 3 is characterized in that: be the right angle between described flow deflector one (10) and the flow deflector two (11).
5. as the arbitrary described oxygen rifle nitrogen seal device of claim 1 to 4, it is characterized in that: described strongback three (12) and lower cover (17) have alternating share.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201615161U CN201660658U (en) | 2010-04-16 | 2010-04-16 | Oxygen lance nitrogen sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201615161U CN201660658U (en) | 2010-04-16 | 2010-04-16 | Oxygen lance nitrogen sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201660658U true CN201660658U (en) | 2010-12-01 |
Family
ID=43231073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201615161U Expired - Lifetime CN201660658U (en) | 2010-04-16 | 2010-04-16 | Oxygen lance nitrogen sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201660658U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181600A (en) * | 2011-05-24 | 2011-09-14 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN103014227A (en) * | 2012-11-30 | 2013-04-03 | 鞍钢股份有限公司 | Gas and steam dual-purpose plugging ring for converter oxygen lance opening |
| CN103243193A (en) * | 2013-05-11 | 2013-08-14 | 首钢长治钢铁有限公司 | Nitrogen sealing device of lower muzzle of steel converter |
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
| CN107604125A (en) * | 2017-10-19 | 2018-01-19 | 四川企拓新材料有限公司 | A kind of converter oxygen gun takes off slag device |
| CN112359165A (en) * | 2020-11-20 | 2021-02-12 | 北京京诚科林环保科技有限公司 | Movable smoke hood sealing structure |
| CN113755664A (en) * | 2021-07-30 | 2021-12-07 | 阳春新钢铁有限责任公司 | Sealing and fire-sealing method for oxygen lance mouth sleeve of fixed smoke hood |
-
2010
- 2010-04-16 CN CN2010201615161U patent/CN201660658U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181600A (en) * | 2011-05-24 | 2011-09-14 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN102181600B (en) * | 2011-05-24 | 2012-07-25 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN103014227A (en) * | 2012-11-30 | 2013-04-03 | 鞍钢股份有限公司 | Gas and steam dual-purpose plugging ring for converter oxygen lance opening |
| CN103243193A (en) * | 2013-05-11 | 2013-08-14 | 首钢长治钢铁有限公司 | Nitrogen sealing device of lower muzzle of steel converter |
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
| CN107604125A (en) * | 2017-10-19 | 2018-01-19 | 四川企拓新材料有限公司 | A kind of converter oxygen gun takes off slag device |
| CN112359165A (en) * | 2020-11-20 | 2021-02-12 | 北京京诚科林环保科技有限公司 | Movable smoke hood sealing structure |
| CN113755664A (en) * | 2021-07-30 | 2021-12-07 | 阳春新钢铁有限责任公司 | Sealing and fire-sealing method for oxygen lance mouth sleeve of fixed smoke hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |