CN203757267U - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN203757267U CN203757267U CN201420167678.4U CN201420167678U CN203757267U CN 203757267 U CN203757267 U CN 203757267U CN 201420167678 U CN201420167678 U CN 201420167678U CN 203757267 U CN203757267 U CN 203757267U
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- China
- Prior art keywords
- expansion joint
- flange
- outer sleeve
- inner sleeve
- exhaust outlet
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Abstract
The utility model relates to an expansion joint. The expansion joint 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 to the air inlet flange; the inner sleeve is connected to the air outlet flange; the outer sleeve covers the inner sleeve; gaps are remained between the outer sleeve and the inner sleeve; expansion gaps are remained between the end portion of the outer sleeve and the air outlet flange; expansion gaps are remained between the end portion of the inner sleeve and the air outlet flange. The expansion joint has the advantages of being simple in structure, easy to manufacture, low in production cost and not easy to deform and damage, reducing added auxiliary devices during the transportation process and reducing transportation costs. The expansion joint can be metal expansion joint or nonmetal expansion joint due to the simple and effective structural form of the outer sleeve and the inner sleeve.
Description
Technical field
The utility model relates to a kind of expansion joint, refers 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 ℃～1200 ℃.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 during 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 is complicated, cost of production is high,
The easy deformed damaged of bellows, so need to use many supplementary equipment in transportation process, is difficult for transportation, 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.
Model utility content
For above problem the utility model, provide 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.
In order to overcome the above problems the utility model, provide a kind of expansion joint, 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 utility model 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 utility model, 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 the nut with bolt matching to be first welded on above inside casing, install to 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 utility model, 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.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of bolt 9 when 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 utility model will be further described.
As shown in Figure 1, 2, the utility model 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 utility model, 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 utility model, 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 preferred embodiment of the present utility model, be not restricted to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present utility model.
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 |
|---|---|---|---|
| CN201420167678.4U CN203757267U (en) | 2014-04-08 | 2014-04-08 | Expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167678.4U CN203757267U (en) | 2014-04-08 | 2014-04-08 | Expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757267U true CN203757267U (en) | 2014-08-06 |
Family
ID=51252543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420167678.4U Expired - Fee Related CN203757267U (en) | 2014-04-08 | 2014-04-08 | Expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883823A (en) * | 2014-04-08 | 2014-06-25 | 南京凯盛国际工程有限公司 | Expansion joint |
-
2014
- 2014-04-08 CN CN201420167678.4U patent/CN203757267U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883823A (en) * | 2014-04-08 | 2014-06-25 | 南京凯盛国际工程有限公司 | Expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170408 |