CN206468979U - A kind of high temperature resistant expander - Google Patents
A kind of high temperature resistant expander Download PDFInfo
- Publication number
- CN206468979U CN206468979U CN201720168883.6U CN201720168883U CN206468979U CN 206468979 U CN206468979 U CN 206468979U CN 201720168883 U CN201720168883 U CN 201720168883U CN 206468979 U CN206468979 U CN 206468979U
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- CN
- China
- Prior art keywords
- guide shell
- thermal insulation
- insulation layer
- flange
- expander
- 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.)
- Expired - Fee Related
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- Diaphragms And Bellows (AREA)
Abstract
The utility model discloses a kind of high temperature resistant expander, including：Hook is installed on flange, bellows, otic placode, guide shell and thermal insulation layer, the flange；The otic placode is used for adpting flange and bellows；The guide shell is connected with flange, the guide shell includes left guide shell, right guide shell, the left guide shell right-hand member and right guide shell left end concentric gap fit inside expander, the left guide shell, right guide shell ecto-entad are made up of metal level, refractory ceramics layer successively；The thermal insulation layer is followed successively by first thermal insulation layer, second thermal insulation layer from inside to outside, and the first thermal insulation layer is fixedly connected by hook with flange, and the second thermal insulation layer is filled between ripple inside pipe wall and first thermal insulation layer outer wall.The utility model forms guide shell by using by metal level and refractory ceramics layer combination, reduces dust in flue gas and, to the effect of attrition of guide shell, while setting thermal insulation layer between bellows and guide shell, obstructs the heat transfer of flue gas, reach high-temperature resistant result.
Description
Technical field
The utility model is related to a kind of expander, particularly a kind of resistant to elevated temperatures expander.
Background technology
Boiler, smelting and chemical industry are essential production link in the industrial production, but in process of production can
Substantial amounts of flue gas is produced, need to be discharged through flue.Because flue gas generally carries high temperature, flue can be conducted heat, make flue gas
Pipeline produces differential expansion, therefore often can install expander in flue to absorb expansion.
Application No. CN201420182130 patent discloses a kind of high-temperature resistant corrugated expansion joint, including left flange,
Bellows, right flange, left guide shell and right guide shell, left guide shell, right guide shell are the tube-in-tube structure with flange, its court
Outer flange is respectively welded in the inwall of left flange, right flange, and the right guide shell part of the other end is coaxially linked in left guide shell
On, heat insulation structural is provided with the cavity that left guide shell, right water conservancy diversion drum outer wall and ripple inside pipe wall are constituted, heat insulation structural is from inside to outside
It is divided into three layers.Patent application heat insulation structural protection expander is not affected by high temperatures and damaged, but kind of dust it is big,
Speed is high, abrasiveness is strong, is easily caused in expander the abrasion of draft tube structure and then is damaged.
Utility model content
The utility model provides a kind of resistant to elevated temperatures expander, easy by flue gas at least to solve expander in the prior art
The problem of middle dust weares and teares.
A kind of high temperature resistant expander, including：Installed on flange, bellows, otic placode, guide shell and thermal insulation layer, the flange
There is hook；The otic placode is used for adpting flange and bellows；The guide shell is connected with flange, and the guide shell includes left water conservancy diversion
Cylinder, right guide shell, the left guide shell right-hand member and right guide shell left end concentric gap fit inside expander, the left water conservancy diversion
Cylinder, right guide shell ecto-entad are made up of metal level, refractory ceramics layer successively；The thermal insulation layer be followed successively by from inside to outside first every
Thermosphere, second thermal insulation layer, the first thermal insulation layer are fixedly connected by hook with flange, and the second thermal insulation layer is filled in ripple
Between inside pipe wall and first thermal insulation layer outer wall.
Further, the flange being connected with right guide shell is provided with multiple breather pipes, and the right guide shell is straight tube,
The left guide shell right-hand member gap is linked on right guide shell inwall, and the left guide shell left end extends to external diameter, forms enlarging
Structure, the left guide shell left end is brought into close contact with first thermal insulation layer, and the right guide shell has gap with first thermal insulation layer, institute
The gap stated between left guide shell, right guide shell, first thermal insulation layer is connected with multiple breather pipes that the flange is provided with, shape
Into air communication channel, the breather pipe is connected with blast apparatus..
Further, the breather pipe that the flange is provided with is no less than 4.
Further, the refractory ceramics layer is zirconia ceramics.
Further, the first thermal insulation layer is receives the heat-insulated soft carpet veneer of base.
Further, the second thermal insulation layer is glass cotton packing layer.
The utility model compared with prior art, forms guide shell using metal level and refractory ceramics layer combination, utilizes height
The high temperature resistant of warm ceramic layer, antiwear characteristic reduce the effect of attrition of dust in flue gas to guide shell, while in bellows and water conservancy diversion
Thermal insulation layer is set between cylinder, the heat transfer of high-temperature flue gas is obstructed, bellows temperature is reduced, expander is reached high-temperature resistant result.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment.
Embodiment
In order that those skilled in the art more fully understand the utility model scheme, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all should
When the scope for belonging to the utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.
A kind of high temperature resistant expander is provided according to the utility model embodiment, as shown in figure 1, including flange 1, bellows
3rd, hook 11 is installed on otic placode 2, guide shell and thermal insulation layer, the flange 1；The otic placode is used for adpting flange 1 and bellows
3；The guide shell is connected with flange 1, the guide shell include left guide shell 4, right guide shell 5, the left right-hand member of guide shell 4 with
The right left end of guide shell 5 concentric gap fit inside expander, the left guide shell 4, the ecto-entad of right guide shell 5 are successively by gold
Belong to layer, refractory ceramics layer 8 to constitute；The thermal insulation layer is followed successively by first thermal insulation layer 6, second thermal insulation layer 7, described first from inside to outside
Thermal insulation layer 6 is fixedly connected by hook 11 with flange 1, and the second thermal insulation layer 7 is filled in the inwall of bellows 3 and first thermal insulation layer
Between 6 outer walls.
Wherein, the left guide shell 4 of expander, right guide shell 5 are used as composition structure using metal level, refractory ceramics layer 8, with
Metal level is as the agent structure of guide shell, and refractory ceramics layer 8 contacts as liner with high-temperature flue gas.Because refractory ceramics has in itself
Have high temperature resistant, high intensity, high rigidity, every thermal property, can obstruct high temperature while reduce flue gas in dust to guide shell
Abrasion, improve expander service life.Thermal insulation layer is set in expander, and further the transmission of barrier high temperature, improves expansion
The heat resistance of device.
Alternatively, the flange 1 being connected with right guide shell 5 is provided with multiple breather pipes 9, and the right guide shell 5 is straight
Cylinder, the left right-hand member gap of guide shell 4 is linked on the right inwall of guide shell 5, and the left left end of guide shell 4 extends to external diameter, shape
Into flaring structure, the left left end of guide shell 4 is brought into close contact with first thermal insulation layer 6, the right guide shell 5 and first thermal insulation layer 6
With gap, it is multiple that gap between the left guide shell 4, right guide shell 5, first thermal insulation layer 6 and the flange 1 are provided with
Breather pipe 9 is connected, and forms air communication channel 10, and the breather pipe 9 is connected with blast apparatus.
Still optionally further, the breather pipe 9 that the flange is provided with is no less than 4.
Wherein, the left right-hand member of guide shell 4 and the right left end of guide shell 5 concentric gap fit inside expander, to ensure fit
The slidability of structure, the fit position of the left right-hand member of guide shell 4 and the right left end of guide shell 5 can leave space.Flue gas was being discharged
Cheng Zhong, smoke dust easily flies into the space at fit position, into inside expander, and abrasion is produced to bellows 3.The application passes through
Multiple breather pipes 9 are set on flange 1, using on the gap and flange 1 between left guide shell 4, right guide shell 5, first thermal insulation layer 6
The breather pipe 9 being provided with is connected, and forms air communication channel 10, is connected by breather pipe 9 with blast apparatus.Blast apparatus is to logical
Inflated in tracheae 9, the passage 10 that ventilates is barotropic state relative to flue gas in guide shell, prevents flying into for smoke dust,
Improve the service life of expander.
Specifically, by the breather pipe 9 provided with 4 and the above on flange, to the air-blowing simultaneously of multiple breather pipes 9, being more easy to
Maintain the air pressure equalisation in air communication channel 10.
Alternatively, the refractory ceramics layer 8 is zirconia ceramics.
Wherein, zirconia ceramics has high tenacity, high-wearing feature, excellent heat-proof quality, compared to common refractory ceramics,
With more excellent performance, expander service life is significantly improved, simultaneous oxidation zircon ceramic thermal coefficient of expansion is reduced close to metal
Because refractory ceramics layer 8 and metal level between because expanded by heating degree it is different caused by refractory ceramics layer 8 with metal level depart from now
As.
Alternatively, the first thermal insulation layer is receives the heat-insulated soft carpet veneer of base.
Wherein, it is poor using common insulating effectiveness of insulating materials because the space between guide shell and bellows is smaller.Na Ji
Heat-insulated soft carpet veneer is as high efficiency heat insulation material, while having the characteristics of matter is soft, can improve the same of expander resistance to elevated temperatures
When expansion absorption performance not to expander have a negative impact.
Alternatively, the second thermal insulation layer is glass cotton packing layer.
Wherein, the glass cotton packing layer preferable heat-proof quality of tool and cost is relatively low, by being filled in the inwall of bellows 3 and the
Between the outer wall of one thermal insulation layer 6, the resistance to elevated temperatures of expander is further improved, and reduces the manufacturing cost of expander.
Claims (6)
1. a kind of high temperature resistant expander, it is characterised in that including：
Hook is installed on flange, the flange；
Bellows；
Otic placode, for adpting flange and bellows；
Guide shell, the guide shell is enclosed in bellows, is connected with flange, and the guide shell includes left guide shell, right guide shell,
The left guide shell right-hand member and right guide shell left end concentric gap fit inside expander, the left guide shell, right guide shell
Ecto-entad is made up of metal level, refractory ceramics layer successively；
Thermal insulation layer, the thermal insulation layer is followed successively by first thermal insulation layer, second thermal insulation layer from inside to outside, and the first thermal insulation layer is by hanging
Hook is fixedly connected with flange, and the second thermal insulation layer is filled between ripple inside pipe wall and first thermal insulation layer outer wall.
2. a kind of high temperature resistant expander according to claim 1, it is characterised in that the flange being connected with right guide shell
Multiple breather pipes are provided with, the right guide shell is straight tube, and the left guide shell right-hand member gap is linked on right guide shell inwall,
The left guide shell left end extends to external diameter, forms flaring structure, and the left guide shell left end is brought into close contact with first thermal insulation layer,
The right guide shell and first thermal insulation layer have gap, the gap between the left guide shell, right guide shell, first thermal insulation layer with
Multiple breather pipes that the flange is provided with are connected, and form air communication channel, and the breather pipe is connected with blast apparatus.
3. a kind of high temperature resistant expander according to claim 2, it is characterised in that the breather pipe that the flange is provided with is not
Less than 4.
4. a kind of high temperature resistant expander according to claim 1, it is characterised in that the refractory ceramics layer is zirconium oxide pottery
Porcelain.
5. a kind of high temperature resistant expander according to claim 1, it is characterised in that the first thermal insulation layer is heat-insulated to receive base
Soft carpet veneer.
6. a kind of high temperature resistant expander according to claim 1, it is characterised in that the second thermal insulation layer is that glass cotton is filled out
The bed of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168883.6U CN206468979U (en) | 2017-02-23 | 2017-02-23 | A kind of high temperature resistant expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168883.6U CN206468979U (en) | 2017-02-23 | 2017-02-23 | A kind of high temperature resistant expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468979U true CN206468979U (en) | 2017-09-05 |
Family
ID=59707556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720168883.6U Expired - Fee Related CN206468979U (en) | 2017-02-23 | 2017-02-23 | A kind of high temperature resistant expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468979U (en) |
-
2017
- 2017-02-23 CN CN201720168883.6U patent/CN206468979U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170905 Termination date: 20180223 |