CN103883823A - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN103883823A CN103883823A CN201410139418.0A CN201410139418A CN103883823A CN 103883823 A CN103883823 A CN 103883823A CN 201410139418 A CN201410139418 A CN 201410139418A CN 103883823 A CN103883823 A CN 103883823A
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- CN
- China
- Prior art keywords
- flange
- outer sleeve
- expansion joint
- inner sleeve
- exhaust outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/04—Expansion-compensation arrangements for pipe-lines making use of bends, e.g. lyre-shaped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/21—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for expansion-compensation devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to an expansion joint which comprises an expansion deformation sheet, an air inlet flange, an outer sleeve, an inner sleeve and an air outlet flange. The expansion deformation sheet is connected with the air inlet flange and the air outlet flange. The outer sleeve is connected with the air inlet flange. The inner sleeve is connected with the air outlet flange. The inner sleeve is coated with the outer sleeve. A gap is reserved between the outer sleeve and the inner sleeve. An expansion gap is reserved between the end of the outer sleeve and the air outlet flange. An expansion gap is reserved between the end of the inner sleeve and the air inlet flange. The expansion joint is simple in structure, easy to machine and manufacture, low in production cost and not prone to deformation and damage, so that auxiliary devices additionally arranged in the transportation process are reduced, and the transportation cost is reduced. The simple and effective structural mode of the outer sleeve and the inner sleeve is adopted so as to be used for a metal expansion joint and a non-metal expansion joint.
Description
Technical field
The present invention relates to a kind of expansion joint, refer more particularly to a kind of expansion joint that is applied to cement industry preheater decomposition furnace system.
Background technique
Existing cement industry preheater decomposition furnace system environment is severe, and kiln exit gas temperature is high, and maximum temperature reaches 1100 DEG C～1200 DEG C.Kiln tail dust flue gas is containing being corrosive, and reach-5500Pa of the pressure of kiln tail preheater decomposition furnace system～-8000Pa, so the expansion joint being applied to is herein had relatively high expectations.Be applied to expansion joint herein and be generally divided into two kinds of type metal expansion joint and non-metal expansion joints.Because of the relative type metal expansion joint of non-metal expansion joint more cheap, some cement producer adopts non-metal expansion joint at kiln tail, but because non-metal expansion joint heatproof is lower, working life is short, stops again kiln when replacing, can not realize online replacing, greatly affect the running rate of rotary kiln.Therefore the cement producer that applies non-metal expansion joint is fewer and feweri.Cement producer adopts the type metal expansion joint of bellows pattern mostly at kiln tail place at present, but the expansion joint of bellows pattern is made processing technology complexity, cost of production is high,
The easy deformed damaged of bellows, so need to use many supplementary equipment in transportation process, is difficult for transport, installs.The expansion joint of bellows pattern must be processed at manufacturing shop, does not possess the possibility of the on-the-spot processing in cement plant.The expansion joint of bellows pattern, because of complex structure, also cannot be realized online replacing.If can overcome these problems, so just can greatly improve the productivity effect in cement plant.
Summary of the invention
The invention provides for above problem a kind of simple in structure, be easy to manufacturing, cost of production low, realize online change, not fragile, the expansion joint that improves cement plant benefit.
The invention provides a kind of expansion joint in order to overcome the above problems, it is characterized in that: comprise dilatancy sheet, intake grill flange, outer sleeve, inner sleeve, exhaust outlet flange, dilatancy sheet and intake grill flange, exhaust outlet flange link together, outer sleeve is connected on intake grill flange, inner sleeve is connected on exhaust outlet flange, outer sleeve is wrapped in the outside of inner sleeve, between outer sleeve and inner sleeve, leave gap, between outer sleeve end and exhaust outlet flange, leave clearance for expansion, between inner sleeve end and intake grill flange, leave clearance for expansion.This expansion joint structure is simple, is easy to manufacturing, cost of production is low, and is difficult for deformed damaged, so reduced the supplementary equipment of setting up in transportation process, has reduced cost of transportation.The present invention adopts outer sleeve and the simple and effective structural type of inner sleeve, can be used for type metal expansion joint and can be used for again non-metal expansion joint.
Inner side at outer sleeve, inner sleeve is inlaid with lining, and the setting of lining is the working life of lengthening sleeve further.
In the region surrounding in the outside of inner side, inner sleeve and the outer sleeve of dilatancy sheet, be filled with packing, can effectively prop up dilatancy sheet, play in addition the effect of thermal insulation protection, thereby further extended the working life of dilatancy sheet.
Clearance range between outer sleeve and inner sleeve is 0.1mm～200mm, so that expansion joint work.
As preferred version of the present invention, best results when the gap value between outer sleeve and inner sleeve is 10mm.
Described a kind of expansion joint also comprises bolt, outside casing, inside casing, and outside casing, inside casing are positioned at intake grill flange and exhaust outlet flange outside, and inside casing links together with intake grill flange, exhaust outlet flange respectively.Described dilatancy sheet is between outside casing and inside casing.Dilatancy sheet links together by bolt, outside casing, inside casing and intake grill flange, exhaust outlet flange; Connection by bolt, outside casing, inside casing can, after dilatancy sheet damages, realize online and changing, without stopping kiln.
Bolt is positioned at air intake one side or air-out one side of intake grill flange, air intake one side that is positioned at exhaust outlet flange or air-out one side.When bolt is positioned at air intake one side of intake grill flange or air-out one side of exhaust outlet flange, after dilatancy sheet damages, installation is changed very convenient, greatly shortens the replacement cycle.When bolt is positioned at air-out one side of intake grill flange or air intake one side of exhaust outlet flange, before installation, need to be first welded on above inside casing with the nut of bolt matching, install and change slightly inconvenience, but reduced the material of dilatancy sheet, outside casing, inside casing, reduced cost of production.
Dilatancy sheet adopts nonmetallic material or Ordinary Steel or alloy material; Lining adopts refractory material; Packing adopts thermal-protective material; Intake grill flange, exhaust outlet flange adopt Ordinary Steel; Outer sleeve and inner sleeve adopt Ordinary Steel or alloy material.
As preferred version of the present invention, the nonmetallic material that described dilatancy sheet adopts are glass fibre or ceramic fiber or canvas, and the alloy material of employing is 304 stainless steels or 316 stainless steels; The refractory material that described lining adopts is castable refractory or refractory brick or wear-resistant ceramic; The thermal-protective material that packing adopts is rock wool or ceramic fiber.The selection of material, has further saved cost, has further extended again the working life of expansion joint.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the schematic diagram of bolt 9 in the time of another location.
In Fig. 1, Fig. 2: 1-dilatancy sheet; 2-outside casing; 3-inside casing; 4-intake grill flange; 5-outer sleeve; 6-inner sleeve; 7-lining; 8-exhaust outlet flange; 9-bolt; 10-packing.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, 2, the invention provides a kind of expansion joint, comprise dilatancy sheet 1, outside casing 2, inside casing 3, intake grill flange 4, outer sleeve 5, inner sleeve 6, lining 7, exhaust outlet flange 8, bolt 9, packing 10, dilatancy sheet 1 links together with intake grill flange 4, exhaust outlet flange 8 by bolt 9, outside casing 2, inside casing 3.Outer sleeve 5 is connected on intake grill flange 4, inner sleeve 6 is connected on exhaust outlet flange 8, outer sleeve 5 is wrapped in the outside of inner sleeve 6, between outer sleeve 5 and inner sleeve 6, leave gap, between outer sleeve 5 ends and exhaust outlet flange 8, leave clearance for expansion, between inner sleeve 6 ends and intake grill flange 4, leave clearance for expansion.Inner side at outer sleeve 5, inner sleeve 6 is inlaid with lining 7.In the region surrounding in the outside of inner side, inner sleeve and the outer sleeve of dilatancy sheet, be filled with packing 10.
Clearance range between outer sleeve 5 and inner sleeve 6 is 0.1mm～200mm.As preferred version of the present invention, the gap value between outer sleeve 5 and inner sleeve 6 is 10mm.
Two distances between anchor post and the temperature of environment are depended in the clearance for expansion of leaving between the clearance for expansion of leaving between outer sleeve 5 ends and exhaust outlet flange 8 and inner sleeve 6 ends and intake grill flange 4.
Outside casing 2, inside casing 3 are positioned at intake grill flange 4 and exhaust outlet flange 8 outsides, and inside casing 3 links together with intake grill flange 4, exhaust outlet flange 8 respectively.Described dilatancy sheet 1 is between outside casing 2 and inside casing 3.Dilatancy sheet 1 links together by bolt 9 and outside casing 2, inside casing 3.Bolt 9 is positioned at air intake one side or air-out one side of intake grill flange 4, air intake one side that is positioned at exhaust outlet flange 8 or air-out one side.
Dilatancy sheet 1 adopts nonmetallic material or Ordinary Steel or alloy material; Lining 7 adopts refractory material; Packing 10 adopts thermal-protective material; Intake grill flange 4, exhaust outlet flange 8 adopt Ordinary Steel; Outer sleeve 5 adopts Ordinary Steel or alloy material with inner sleeve 6.As preferred version of the present invention, the nonmetallic material that described dilatancy sheet 1 adopts are glass fibre or ceramic fiber or canvas, and the alloy material of employing is 304 stainless steels or 316 stainless steels; The refractory material that described lining 7 adopts is castable refractory or refractory brick or wear-resistant ceramic; The thermal-protective material that packing 10 adopts is rock wool or ceramic fiber.
The foregoing is only the preferred embodiments of the present invention, be not restricted to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (9)
1. an expansion joint, comprise intake grill flange (4), exhaust outlet flange (8), it is characterized in that: also comprise dilatancy sheet (1), outer sleeve (5), inner sleeve (6), dilatancy sheet (1) and intake grill flange (4), exhaust outlet flange (8) links together, outer sleeve (5) is connected on intake grill flange (4), inner sleeve (6) is connected on exhaust outlet flange (8), outer sleeve (5) is wrapped in the outside of inner sleeve (6), between outer sleeve (5) and inner sleeve (6), leave gap, between outer sleeve (5) end and exhaust outlet flange (8), leave clearance for expansion, between inner sleeve (6) end and intake grill flange (4), leave clearance for expansion.
2. a kind of expansion joint according to claim 1, is characterized in that: the inner side at outer sleeve (5), inner sleeve (6) is inlaid with lining (7).
3. a kind of expansion joint according to claim 1, is characterized in that: in the region surrounding in the outside of inner side, inner sleeve (6) and the outer sleeve (5) of dilatancy sheet (1), be filled with packing (10).
4. a kind of expansion joint according to claim 1, is characterized in that: the clearance range between outer sleeve (5) and inner sleeve (6) is 0.1mm～200mm.
5. a kind of expansion joint according to claim 1, is characterized in that: the gap value between outer sleeve (5) and inner sleeve (6) is 10mm.
6. a kind of expansion joint according to claim 1, it is characterized in that: also comprise bolt (9), outside casing (2), inside casing (3), outside casing (2), inside casing (3) are positioned at intake grill flange (4) and exhaust outlet flange (8) outside, and inside casing (3) links together with intake grill flange (4), exhaust outlet flange (8) respectively; Described dilatancy sheet (1) is positioned between outside casing (2) and inside casing (3); Dilatancy sheet (1) links together by bolt (9) and outside casing (2), inside casing (3).
7. a kind of expansion joint according to claim 6, is characterized in that: bolt (9) is positioned at air intake one side or air-out one side of intake grill flange (4), air intake one side that is positioned at exhaust outlet flange (8) or air-out one side.
8. according to a kind of expansion joint described in claim 1,2,3 any one, it is characterized in that: dilatancy sheet (1) adopts nonmetallic material or Ordinary Steel or alloy material; Lining (7) adopts refractory material; Packing (10) adopts thermal-protective material; Intake grill flange (4), exhaust outlet flange (8) adopt Ordinary Steel; Outer sleeve (5) adopts Ordinary Steel or alloy material with inner sleeve (6).
9. a kind of expansion joint according to claim 8, is characterized in that: the nonmetallic material that described dilatancy sheet (1) adopts are glass fibre or ceramic fiber or canvas, and the alloy material of employing is 304 stainless steels or 316 stainless steels; The refractory material that described lining (7) adopts is castable refractory or refractory brick or wear-resistant ceramic; The thermal-protective material that packing (10) adopts is rock wool or ceramic fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139418.0A CN103883823B (en) | 2014-04-08 | 2014-04-08 | A kind of expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139418.0A CN103883823B (en) | 2014-04-08 | 2014-04-08 | A kind of expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883823A true CN103883823A (en) | 2014-06-25 |
| CN103883823B CN103883823B (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410139418.0A Active CN103883823B (en) | 2014-04-08 | 2014-04-08 | A kind of expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883823B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921332A (en) * | 2019-12-17 | 2020-03-27 | 陕西延长石油（集团）有限责任公司 | Powder conveying channel connecting structure and method |
| CN112879933A (en) * | 2021-03-19 | 2021-06-01 | 青岛达能环保设备股份有限公司 | Boiler slag well and hydraulic crushing shutoff door expansion joint connecting system |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378026A (en) * | 1993-07-15 | 1995-01-03 | Michel D. Ninacs | Cylindrical flexible joint unit |
| CN201293179Y (en) * | 2008-11-19 | 2009-08-19 | 赵德威 | High temperature resistant type fabric expansion joint |
| CN201373207Y (en) * | 2009-01-16 | 2009-12-30 | 湖北康博赛特膨胀节有限公司 | Big tie-rod double fabric expansion joint |
| CN201582523U (en) * | 2009-10-12 | 2010-09-15 | 深圳市彩阳电力技术有限公司 | Nonmetal expansion joint used for gas coal transportation pipeline |
| CN201992256U (en) * | 2011-02-23 | 2011-09-28 | 武汉龙净环保工程有限公司 | Expansion joint connection structure of anti-abrasion corrosion-resistant pipeline |
| CN102606837A (en) * | 2012-03-31 | 2012-07-25 | 南通三创机械制造有限公司 | Full-sealing type abrasion resistant fiber expansion joint |
| CN102620091A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Fiber expansion joint with novel trim strip |
| CN202432169U (en) * | 2011-11-17 | 2012-09-12 | 玉锋实业集团有限公司 | Novel rubber soft joint with wear-resistant sleeve |
| CN102878380A (en) * | 2012-09-18 | 2013-01-16 | 吴玲媛 | High temperature expansion joint |
| CN202756828U (en) * | 2012-08-31 | 2013-02-27 | 江苏晨光波纹管有限公司 | High-temperature-resistant abrasion-resistant non-metal compensator |
| CN202852275U (en) * | 2012-09-18 | 2013-04-03 | 吴朱刚 | Expansion joint |
| CN103542220A (en) * | 2013-10-07 | 2014-01-29 | 江苏宝金来管道成套设备有限公司 | High-temperature-resistant corrosion-resistant non-metallic compensator for flue gas demercuration |
| CN203757267U (en) * | 2014-04-08 | 2014-08-06 | 南京凯盛国际工程有限公司 | Expansion joint |
-
2014
- 2014-04-08 CN CN201410139418.0A patent/CN103883823B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378026A (en) * | 1993-07-15 | 1995-01-03 | Michel D. Ninacs | Cylindrical flexible joint unit |
| CN201293179Y (en) * | 2008-11-19 | 2009-08-19 | 赵德威 | High temperature resistant type fabric expansion joint |
| CN201373207Y (en) * | 2009-01-16 | 2009-12-30 | 湖北康博赛特膨胀节有限公司 | Big tie-rod double fabric expansion joint |
| CN201582523U (en) * | 2009-10-12 | 2010-09-15 | 深圳市彩阳电力技术有限公司 | Nonmetal expansion joint used for gas coal transportation pipeline |
| CN201992256U (en) * | 2011-02-23 | 2011-09-28 | 武汉龙净环保工程有限公司 | Expansion joint connection structure of anti-abrasion corrosion-resistant pipeline |
| CN202432169U (en) * | 2011-11-17 | 2012-09-12 | 玉锋实业集团有限公司 | Novel rubber soft joint with wear-resistant sleeve |
| CN102620091A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Fiber expansion joint with novel trim strip |
| CN102606837A (en) * | 2012-03-31 | 2012-07-25 | 南通三创机械制造有限公司 | Full-sealing type abrasion resistant fiber expansion joint |
| CN202756828U (en) * | 2012-08-31 | 2013-02-27 | 江苏晨光波纹管有限公司 | High-temperature-resistant abrasion-resistant non-metal compensator |
| CN102878380A (en) * | 2012-09-18 | 2013-01-16 | 吴玲媛 | High temperature expansion joint |
| CN202852275U (en) * | 2012-09-18 | 2013-04-03 | 吴朱刚 | Expansion joint |
| CN103542220A (en) * | 2013-10-07 | 2014-01-29 | 江苏宝金来管道成套设备有限公司 | High-temperature-resistant corrosion-resistant non-metallic compensator for flue gas demercuration |
| CN203757267U (en) * | 2014-04-08 | 2014-08-06 | 南京凯盛国际工程有限公司 | Expansion joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921332A (en) * | 2019-12-17 | 2020-03-27 | 陕西延长石油（集团）有限责任公司 | Powder conveying channel connecting structure and method |
| CN110921332B (en) * | 2019-12-17 | 2021-07-20 | 陕西延长石油（集团）有限责任公司 | Powder conveying channel connecting structure and method |
| CN112879933A (en) * | 2021-03-19 | 2021-06-01 | 青岛达能环保设备股份有限公司 | Boiler slag well and hydraulic crushing shutoff door expansion joint connecting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103883823B (en) | 2016-03-30 |
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Address after: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee after: Zhongcai International Intelligent Technology Co.,Ltd. Address before: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee before: NANJING KISEN INTERNATIONAL ENGINEERING Co.,Ltd. |