CN206681804U - A kind of surface heat preservation structure of high temperature service - Google Patents
A kind of surface heat preservation structure of high temperature service Download PDFInfo
- Publication number
- CN206681804U CN206681804U CN201720276169.9U CN201720276169U CN206681804U CN 206681804 U CN206681804 U CN 206681804U CN 201720276169 U CN201720276169 U CN 201720276169U CN 206681804 U CN206681804 U CN 206681804U
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- China
- Prior art keywords
- high temperature
- temperature service
- layer
- heat preservation
- preservation structure
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- 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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Abstract
It the utility model is related to a kind of surface heat preservation structure of high temperature service, be particularly suitable for use in steam turbine surface heat preservation, the inner thermal insulating layer formed including the bar for line and at least one set of complex material heat preservation structure that are welded in high temperature service surface, described inner thermal insulating layer is respectively ceramic coated fibrous layer from inside to outside, nano-hole aerogel heat-insulation layer and iron wire stratum reticulare, described ceramic coated fibrous layer is sprayed by the ceramic fibre for being mixed with high temperature resistant binder and formed, can firmly it adsorb on high temperature service surface, and the influence of high temperature service uneven surface can be eliminated and connecting tube root is difficult to cut the phenomenon for being applied to position with heat-preservation cotton.The utility model is simple in construction, reasonable in design, have insulation good integrity, be connected firmly, required insulation thickness is thin, the advantages of being easy to construction, not influenceed by uneven surface and be easy to special-shaped position to construct.
Description
【Technical field】
It the utility model is related to a kind of surface heat preservation structure of high temperature service, the heat preservation technology neck for the steam turbine that is particularly suitable for use in
Domain.
【Background technology】
Inside is in the condition of high temperature when high temperature services such as steam turbine work, to ensure the normal operation of high temperature service and operation
Safety, it is necessary that insulation is carried out to the surface of high temperature service, and traditional approach is to cover one layer of heat preservation layer on surface, uses glass cloth
Pitch or wrapping iron sheet are coated after being fixed etc. banding cloth on surface, but this method insulation material and the size on high temperature service surface are matched somebody with somebody
Conjunction property is bad, and adhesion is weak, and larger space be present, and insulation and water resistance are poor.It is more a kind of utilization had been developed later
The method that block heat insulating block is spliced to form integral heat insulation layer, as described in Chinese patent 201220334056.7, this method is compared to tradition
Be obviously improved in terms of the dimensional fits on method and steam turbine surface, but still suffer from more seam, installation complexity, bulk strength it is poor,
The problem of external skin temperatures are higher.
【Utility model content】
The purpose of this utility model is：The defects of for prior art and deficiency, there is provided a kind of simple in construction, design is closed
Reason, the surface heat preservation device of high temperature service easy to use, attemperator insulation good integrity, it is connected firmly, installation
It is convenient.
To achieve the above object, the technical solution adopted in the utility model is：
A kind of surface heat preservation structure of high temperature service described in the utility model, including it is welded in the guarantor on high temperature service surface
The inner thermal insulating layer that Wen Ding and at least one set of complex material heat preservation structure are formed, described inner thermal insulating layer are respectively to spray from inside to outside
Ceramic fiber layer, nano-hole aerogel heat-insulation layer and iron wire stratum reticulare.
In the utility model：Described ceramic coated fibrous layer sprays structure by the ceramic fibre for being mixed with high temperature resistant binder
Into can firmly adsorb on high temperature service surface, and influence and the connecting tube root of high temperature service uneven surface can be eliminated
It is difficult to cut the phenomenon for being applied to position with heat-preservation cotton.
In the utility model：Described nano-hole aerogel heat-insulation layer is made up of at least two layers of nanoporous aerogel felt, and two
The fissure of displacement is arranged between the nanoporous aerogel felt of layer, thermal loss caused by gap is minimized, wherein described nanometer airsetting
Rubber mat is nano silicon aerogel blanket, and every layer of adapter situation according to high temperature service surface is prepared into corresponding shape.
In the utility model：Described iron wire stratum reticulare is used for the fixation of nano-hole aerogel heat-insulation layer, described iron wire
Stratum reticulare is stainless steel and iron silk screen, is fixed on and is welded on the bar for line on high temperature service surface, is preferably tied up using stainless steel wire
It is fixed.
In the utility model：Also include external protection, described external protection is by ceramic coated fibrous layer and outer protection
Iron wire stratum reticulare forms；Described ceramic coated fibrous layer is sprayed by the ceramic fibre for being mixed with high temperature resistant binder and formed, and can be disappeared
Except the gap between inner thermal insulating layer and protective layer, strengthen heat insulation effect；Described outer protection iron wire stratum reticulare is stainless steel and iron silk screen,
It is fixed on and is welded on the bar for line on high temperature service surface, because each single group insulation construction and external protection is all provided with inner thermal insulating layer
There is fixation, can greatly strengthen heat-insulation layer overall intensity and vibration resistance performance, while it also avoid each layer fixation is led respectively
The thermal stress concentration problem on the excessive caused high temperature service surface of the pad of cause.
After said structure, the utility model has the beneficial effect that：
1. the utility model is simple in construction, reasonable in design, there is insulation good integrity, be connected firmly, required insulation thickness
Thin, the advantages of being easy to construction, not influenceed by uneven surface and be easy to special-shaped position to construct；
2. the overlapping quantity of single group insulation construction, each single group insulation construction are mutual according to needed for heat insulation effect requires determination
Between adaptivity due to ceramic coated fiber and good overall dimensions stability, it is possible to achieve good is seamless right
Connect, reduce thermal loss caused by gap；
3. nano-hole aerogel heat-insulation layer is made up of at least two layers of nanoporous aerogel felt, two layers of nanoporous aerogel felt it
Between the fissure of displacement arrange, thermal loss caused by gap is minimized, due to the excellent heat-insulating capability of aeroge, can be substantially reduced
The thickness of heat-insulation layer.
【Brief description of the drawings】
Accompanying drawing described herein is to be further understood for providing to of the present utility model, forms one of the application
Point, but do not form to improper restriction of the present utility model, in the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic layout pattern of nano-hole aerogel heat-insulation layer.
In figure：1. steam turbine casing main body；2. bar for line；3. inner thermal insulating layer；3-1-1. ceramic coated fibrous layer one；
3-1-2. nano-hole aerogel heat-insulation layer one；3-1-3. iron wire stratum reticulares；3-2-1. ceramic coated fibrous layer two；3-2-2. nanometer
Hole aeroge heat-insulation layer two；3-2-3. steel screen layer；The ceramic coated fibrous layers three of 4-1.；Iron wire stratum reticulare is protected outside 4-2.；5. not
Become rusty steel wire；6. the lower floor's seam of upper strata seam 7.；8. adapter.
【Embodiment】
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, illustrative examples therein with
And explanation is only used for explaining the utility model, but it is not intended as to restriction of the present utility model.
As shown in figure 1, the utility model by taking steam turbine casing as an example, be first welded in steam turbine casing main body 1 it is some
Bar for line 2, inner thermal insulating layer 3 is then laid, inner thermal insulating layer 3 is made up of one or more groups of complex material heat preservation structures, the present embodiment
In employ two groups of complex material heat preservation structures, first make the 3-1-1 of ceramic coated fibrous layer one in first group of insulation construction, so
The 3-1-2 of nano-hole aerogel heat-insulation layer one in first group of insulation construction is laid afterwards, and nano-hole aerogel is incubated in the present embodiment
One 3-1-2 of layer uses two layers of nanometer titanium dioxide silica aerogel insulation quilt, aerosil insulation quilt process of deployment such as Fig. 2 institutes
Show, upper strata seam 6 and the arrangement of the fissure of displacement of lower floor's seam 7, corresponding section is cut according to pipe shape at adapter 8, realized close
Contact.The iron wire stratum reticulare 3-1-3 in first group of insulation construction is made after the completion of laying, wire netting is fixed using stainless steel wire 5
In on the bar for line 2 being welded in steam turbine casing main body.Then after the same method with require make second group of insulation knot
The 3-2-1 of ceramic coated fibrous layer two, the 3-2-2 of nano-hole aerogel heat-insulation layer two, steel screen layer 3-2-3 in structure.Inner thermal insulating layer 3
After completing, the 4-1 of ceramic coated fibrous layer three of external protection is made, the outer protection iron wire stratum reticulare 4-2 of outermost layer addition is carried out
Fixed, outer protection iron wire stratum reticulare 4-2 is fixed on bar for line 2 also with stainless steel wire 5.Due to each single group in inner thermal insulating layer
Insulation construction and external protection are equipped with fixation, can greatly strengthen heat-insulation layer overall intensity and vibration resistance performance, simultaneously
It it also avoid the thermal stress concentration problem of the excessive caused steam turbine casing of pad caused by each layer is fixed respectively.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (7)
- A kind of 1. surface heat preservation structure of high temperature service, it is characterised in that：Including be welded in high temperature service surface bar for line and The inner thermal insulating layer that at least one set of complex material heat preservation structure is formed, described inner thermal insulating layer are respectively ceramic coated fibre from inside to outside Tie up layer, nano-hole aerogel heat-insulation layer and iron wire stratum reticulare.
- A kind of 2. surface heat preservation structure of high temperature service according to claim 1, it is characterised in that：Described is ceramic coated Fibrous layer is sprayed by the ceramic fibre for being mixed with high temperature resistant binder and formed, and can firmly be adsorbed on the surface of high temperature service, and Contact between the influence of high temperature service uneven surface, each layer complex material heat preservation structure can be eliminated and gap and connecting tube be present Root is difficult to cut the phenomenon for being applied to position with heat-preservation cotton.
- A kind of 3. surface heat preservation structure of high temperature service according to claim 1, it is characterised in that：Described nano-pore gas Gel heat-insulation layer is made up of at least two layers of nanoporous aerogel felt, and the fissure of displacement is arranged between two layers of nanoporous aerogel felt, and gap is led The thermal loss of cause minimizes, wherein described nanoporous aerogel felt is preferably nano silicon aerogel blanket, every layer of root Corresponding shape is prepared into according to the adapter situation on high temperature service surface.
- A kind of 4. surface heat preservation structure of high temperature service according to claim 1, it is characterised in that：Described iron wire stratum reticulare For the fixation of nano-hole aerogel heat-insulation layer, described iron wire stratum reticulare is preferably stainless steel and iron silk screen, is fixed on and is welded on height On the bar for line of warm apparatus surface, fixation is preferably tied up using stainless steel wire.
- A kind of 5. surface heat preservation structure of high temperature service according to claim 1, it is characterised in that：Including external protection, Described external protection is made up of ceramic coated fibrous layer and outer protection iron wire stratum reticulare.
- A kind of 6. surface heat preservation structure of high temperature service according to claim 5, it is characterised in that：Described is ceramic coated Fibrous layer is sprayed by the ceramic fibre for being mixed with high temperature resistant binder and formed, between can eliminating between inner thermal insulating layer and protective layer Gap, strengthen heat insulation effect.
- A kind of 7. surface heat preservation structure of high temperature service according to claim 5, it is characterised in that：Described outer protection iron Silk screen layer is stainless steel and iron silk screen, is fixed on the bar for line being welded on high temperature service surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720276169.9U CN206681804U (en) | 2017-03-21 | 2017-03-21 | A kind of surface heat preservation structure of high temperature service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720276169.9U CN206681804U (en) | 2017-03-21 | 2017-03-21 | A kind of surface heat preservation structure of high temperature service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206681804U true CN206681804U (en) | 2017-11-28 |
Family
ID=60390647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720276169.9U Expired - Fee Related CN206681804U (en) | 2017-03-21 | 2017-03-21 | A kind of surface heat preservation structure of high temperature service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206681804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780376A (en) * | 2018-12-28 | 2019-05-21 | 青岛海尔股份有限公司 | Vacuum heat-insulating plate and preparation method thereof |
-
2017
- 2017-03-21 CN CN201720276169.9U patent/CN206681804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780376A (en) * | 2018-12-28 | 2019-05-21 | 青岛海尔股份有限公司 | Vacuum heat-insulating plate and preparation method thereof |
| CN109780376B (en) * | 2018-12-28 | 2021-09-21 | 海尔智家股份有限公司 | Vacuum heat insulation plate and preparation method thereof |
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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: 20171128 Termination date: 20200321 |