CN202993160U - Flexible sealing device of power station boiler body - Google Patents
Flexible sealing device of power station boiler body Download PDFInfo
- Publication number
- CN202993160U CN202993160U CN 201220728092 CN201220728092U CN202993160U CN 202993160 U CN202993160 U CN 202993160U CN 201220728092 CN201220728092 CN 201220728092 CN 201220728092 U CN201220728092 U CN 201220728092U CN 202993160 U CN202993160 U CN 202993160U
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- power station
- station boiler
- seal device
- flexible seal
- steel
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Abstract
The utility model discloses a flexible sealing device of a power station boiler body. The flexible sealing device comprises a fireproof plastic layer, a ceramic fiber layer, a steel mesh and a high temperature proof plastering layer which are sequentially arranged on the working face from inside to outside. An alloy mesh is further laid in the ceramic fiber layer, and the fireproof plastic layer, the ceramic fiber layer and the steel mesh are fixed through a plurality of steel nails. Multi-layer ceramic fibers are used for adjusting and absorbing displacement caused by the fact that metal expansion coefficients at the connection position of a power station boiler in the heating state are different in the application process. The whole sealing structure is three-dimensional and has plasticity. Cracking and air leakage caused by heat alternating stress cannot happen. The flexible sealing device greatly improves energy-saving consumption-reducing index of the power station boiler body, simultaneously can effectively control pollution of smoke to working sites and periphery environment and reduces weight bearing load of the boiler.
Description
Technical field
The utility model relates to the sealing device of body of power station boiler, relates in particular to a kind of flexible seal device of body of power station boiler.
Background technology
It is the ubiquitous problem of station boiler that Air Leakage Into Boilers leaks ash, and the ash that leaks out causes the loss of boiler heat, and severe contamination work and surrounding enviroment.At present this problem solution is mainly adopted the rigid sealing in traditional plane, namely the hard material such as casting material, steel plate repeatedly tiles, and forms hermetically-sealed construction.But because the station boiler running temperature changes, the expansion that rigid hermetically-sealed construction can't absorption boiler produces affects sealing effectiveness.
The utility model content
For above-mentioned technical problem, the utility model provides that a kind of sealing effectiveness is good, the flexible seal device of leak free body of power station boiler.
The technical scheme that the utility model provides is:
A kind of flexible seal device of body of power station boiler, be included in the fire-resistant plastic bed of material, ceramic fiber layer, steel mesh and high temperature resistant float coat that working face sets gradually from inside to outside, wherein, described ceramic fiber layer inside also is equipped with alloy network, and the described fire-resistant plastic bed of material, ceramic fiber layer and steel mesh are fixed by a plurality of steel nails.
Preferably, in the flexible seal device of described body of power station boiler, described ceramic fiber layer comprises the ceramic fibre of one deck at least that is arranged on the alloy network inboard and the fiber of two-layer ceramic at least that is arranged on the alloy network outside, and bonds by binding agent between the adjacent two layers ceramic fibre.
Preferably, in the flexible seal device of described body of power station boiler, each steel nail runs through the fire-resistant plastic bed of material, ceramic fiber layer and steel mesh successively, on each steel nail, at the arranged outside first check pad of described alloy network, the arranged outside at described steel mesh on each steel nail has the second check pad.
Preferably, in the flexible seal device of described body of power station boiler, described fire-resistant plastic bed of material inside also is provided with a wire netting, and each steel nail also passes described wire netting, and is welded on described wire netting.
Preferably, in the flexible seal device of described body of power station boiler, the thickness of the described fire-resistant plastic bed of material is more than or equal to 50mm, and described wire netting is positioned at the 30mm place from inside to outside of the described fire-resistant plastic bed of material.
Preferably, in the flexible seal device of described body of power station boiler, the thickness of described high temperature resistant float coat is more than or equal to 10mm, and its outer surface smoother.
Preferably, in the flexible seal device of described body of power station boiler, the relatively described working face of the described a plurality of steel nails layout that is staggered, and the spacing between adjacent steel nail is 200 ~ 250mm, the number of the steel nail in every square metre is more than or equal to 12.
Preferably, in the flexible seal device of described body of power station boiler, described ceramic fiber layer covers the described fire-resistant plastic bed of material, and described steel mesh covers described ceramic fiber layer, and described high temperature resistant float coat covers described steel mesh.
Preferably, in the flexible seal device of described body of power station boiler, be filled with ceramic fibre between a plurality of wall pipes, and the space between ceramic fibre and adjacent two wall pipes is interference fit, in the periphery of described a plurality of vertical wall pipes, described flexible seal device is set.
Preferably, in the flexible seal device of described body of power station boiler, also be provided with steel wire on described steel mesh.
the flexible seal device of body of power station boiler described in the utility model arranges reliable fire proof heat-insulation layer at bottom, adopt high-temperature adhesives and multi-layered high-density ceramic fibre that the boiler body grey position of leaking out is sealed thereon, outside adopt resistant to elevated temperatures steel mesh in addition whole fixing ceramic fiber layer, smear the high temperature resistant float coat of one deck outside steel mesh, the displacement that each position expansion of metal coefficient difference of station boiler junction causes when hot is adjusted and is absorbed by the ceramic fibre of multilayer, whole hermetically-sealed construction is three-dimensional plasticity, the cracking and the air leakage phenomena that are caused by alternating thermal stress can not appear again.The utility model has improved the energy-saving and cost-reducing index of station boiler greatly, can also effectively control flue gas simultaneously to yard surrounding enviroment pollution in one's power, and has reduced the load-bearing load of boiler.
Description of drawings
Fig. 1 is the structural representation of an embodiment of flexible seal device described in the utility model;
Fig. 2 is the structural representation of another embodiment of flexible seal device described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to the specification word to make those skilled in the art.
As depicted in figs. 1 and 2, the utility model provides a kind of flexible seal device of body of power station boiler, be included in the fire-resistant plastic bed of material, ceramic fiber layer, steel mesh and high temperature resistant float coat that working face sets gradually from inside to outside, wherein, described ceramic fiber layer inside also is equipped with alloy network 4, and the described fire-resistant plastic bed of material 8, ceramic fiber layer and steel mesh 2 are fixing by a plurality of steel nails 12.
In the flexible seal device of described body of power station boiler, described ceramic fiber layer 3 comprises the ceramic fibre of one deck at least that is arranged on the alloy network inboard and the fiber of two-layer ceramic at least that is arranged on the alloy network outside, and bonds by binding agent between the adjacent two layers ceramic fibre.
In the flexible seal device of described body of power station boiler, each steel nail runs through the fire-resistant plastic bed of material, ceramic fiber layer and steel mesh successively, on each steel nail, at the arranged outside first check pad 7 of described alloy network, the arranged outside at described steel mesh on each steel nail has the second check pad 6.
In the flexible seal device of described body of power station boiler, described fire-resistant plastic bed of material inside also is provided with a wire netting, and each steel nail also passes described wire netting 9, and is welded on described wire netting.
In the flexible seal device of described body of power station boiler, the thickness of the described fire-resistant plastic bed of material is more than or equal to 50mm, and described wire netting is positioned at the 30mm place from inside to outside of the described fire-resistant plastic bed of material.
In the flexible seal device of described body of power station boiler, the thickness of described high temperature resistant float coat is more than or equal to 10mm, and its outer surface smoother.
In the flexible seal device of described body of power station boiler, the relatively described working face of the described a plurality of steel nails layout that is staggered, and the spacing between adjacent steel nail is 200 ~ 250mm, the number of the steel nail in every square metre is more than or equal to 12.
In the flexible seal device of described body of power station boiler, described ceramic fiber layer covers the described fire-resistant plastic bed of material, and described steel mesh covers described ceramic fiber layer, and described high temperature resistant float coat covers described steel mesh.
In the flexible seal device of described body of power station boiler, be filled with ceramic fibre between a plurality of wall pipes 10, and the space between ceramic fibre and adjacent two wall pipes is interference fit, in the periphery of described a plurality of vertical wall pipes, described flexible seal device is set.
In the flexible seal device of described body of power station boiler, also be provided with steel wire on described steel mesh.
The utility model is mainly the grey problem of leaking out for coal-fired boiler in thermal power plant, is bringing into play significant role aspect energy-saving and cost-reducing and the pollution that controls environment.
Sealing principle of the present utility model is dynamically to absorb to adjust expansion that boiler must occur rather than rigid containment is expanded.In other words, exactly can be along with Air Leakage Into Boilers leaks the expansion at grey position and expands.The utility model is by arranging reliable fire proof heat-insulation layer at bottom, adopt high-temperature adhesives and multi-layered high-density ceramic fibre that the boiler body grey position of leaking out is sealed thereon, outside adopt resistant to elevated temperatures steel mesh in addition whole fixing ceramic fiber layer, smear the high temperature resistant float coat of one deck outside steel mesh.The characteristics of such design are: with high-temperature adhesives, the metal of ceramic fibre and working face is glued securely and is in the same place, the displacement that each position expansion of metal coefficient difference of boiler junction causes when hot is adjusted, is absorbed by the multi-layer ceramics fiber, whole hermetically-sealed construction is three-dimensional plasticity, with cracking, the air leakage phenomena of there will be no because alternating thermal stress causes.
Fig. 1 is the structural representation at the set sealing device in the position of the single wall pipe of station boiler; Fig. 2 is the structural representation at four jiaos of set sealing devices of boiler setting.
The example that is sealed into to the vertical wall pipe position of station boiler describes work progress of the present utility model:
1. cleaning face, to wall pipe 10 positions do rust cleaning polishings, guarantee to eliminate rust and polish the position without grit, without rusty stain.
2. the soldering stainless steel steel nail 7, and steel nail requires two-sided firm welding.Steel nail length is no less than 80mm, and the spacing of adjacent two steel nails is 200 ~ 250mm, and all steel nails are staggered arranged, must not be less than 12 with respect to the every square meter of working face, and the removings such as welding slag is clean.
3. lay the active mesh grid 9 of iron wire of 40mm * 40mm, the active mesh grid of iron wire is positioned at the inside of the fire-resistant plastic bed of material 8, is welded on steel nail in distance working face 30mm left-right dots.
4. at the microdilatancy plastic refractory of 1650 ℃ of working face top casting heatproofs, the thickness of the fire-resistant plastic bed of material 8 is no less than 50mm.The plastic refractory casting requires plain.
5. smear high-temperature adhesives to filling between tube and tube with ceramic fibre, guarantee that filling is closely knit, reach interference fit.
6. smearing after adhesive with one deck ceramic fibre carries out bonding with sealed surface (here namely the surface of wall pipe).The high-temperature adhesives smearing thickness is consistent, and smears equally adhesive in its side face seam place.
7. lay the soft net 4 of one deck Ni-Cr-Mn alloy after the ground floor ceramic fibre, the soft net of alloy is pressed on the ground floor ceramic fibre with square check pad (the first check pad).
Soft online carry out after evenly smearing high-temperature-resistant adhesive with the two-layer ceramic fiber bonding.The high-temperature adhesives smearing thickness is consistent, and smears equally adhesive in its side face seam place.
9. lay the rhombus stainless (steel) wire outside ceramic fibre, increase rigidity intensity.Steel mesh covers ceramic fiber layer fully.
10. with square check pad (the second check pad), round stainless steel gasket fixedly steel mesh on steel nail, and is welded in circular gasket 5 on steel nail with the fit sealing layer.
11. adopt the special stainless steel connecting ring to connect between steel mesh.
Pass pipe with stainless steel steel wire 1 outside steel mesh is fastened 12. put in the pipe ranking.
Smear the high temperature resistant float coat of one deck outside steel mesh.Float coat thickness is no less than 10mm, and float coat requires level and smooth, and covers steel mesh fully.
The utility model also is applicable to other the position of needs sealings of station boiler.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in specification and embodiment, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend of describing.
Claims (10)
1. the flexible seal device of a body of power station boiler, it is characterized in that, be included in the fire-resistant plastic bed of material, ceramic fiber layer, steel mesh and high temperature resistant float coat that working face sets gradually from inside to outside, wherein, described ceramic fiber layer inside also is equipped with alloy network, and the described fire-resistant plastic bed of material, ceramic fiber layer and steel mesh are fixed by a plurality of steel nails.
2. the flexible seal device of body of power station boiler as claimed in claim 1, it is characterized in that, described ceramic fiber layer comprises the ceramic fibre of one deck at least that is arranged on the alloy network inboard and the fiber of two-layer ceramic at least that is arranged on the alloy network outside, and bonds by binding agent between the adjacent two layers ceramic fibre.
3. the flexible seal device of body of power station boiler as claimed in claim 2, it is characterized in that, each steel nail runs through the fire-resistant plastic bed of material, ceramic fiber layer and steel mesh successively, on each steel nail, at the arranged outside first check pad of described alloy network, the arranged outside at described steel mesh on each steel nail has the second check pad.
4. the flexible seal device of body of power station boiler as claimed in claim 1, is characterized in that, described fire-resistant plastic bed of material inside also is provided with a wire netting, and each steel nail also passes described wire netting, and is welded on described wire netting.
5. the flexible seal device of body of power station boiler as claimed in claim 4, is characterized in that, the thickness of the described fire-resistant plastic bed of material is more than or equal to 50mm, and described wire netting is positioned at the 30mm place from inside to outside of the described fire-resistant plastic bed of material.
6. as the flexible seal device of the described body of power station boiler of any one in claim 5, it is characterized in that, the thickness of described high temperature resistant float coat is more than or equal to 10mm, and its outer surface smoother.
7. as the flexible seal device of the described body of power station boiler of any one in claim 1 to 6, it is characterized in that, the relatively described working face of the described a plurality of steel nail layout that is staggered, and the spacing between adjacent steel nail is 200 ~ 250mm, the number of the steel nail in every square metre is more than or equal to 12.
8. the flexible seal device of body of power station boiler as claimed in claim 7, is characterized in that, described ceramic fiber layer covers the described fire-resistant plastic bed of material, and described steel mesh covers described ceramic fiber layer, and described high temperature resistant float coat covers described steel mesh.
9. the flexible seal device of station boiler as claimed in claim 7, it is characterized in that, be filled with ceramic fibre between a plurality of wall pipes, and the space between ceramic fibre and adjacent two wall pipes is interference fit, in the periphery of described a plurality of vertical wall pipes, described flexible seal device is set.
10. the flexible seal device of body of power station boiler as claimed in claim 1, is characterized in that, also is provided with steel wire on described steel mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728092 CN202993160U (en) | 2012-12-26 | 2012-12-26 | Flexible sealing device of power station boiler body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728092 CN202993160U (en) | 2012-12-26 | 2012-12-26 | Flexible sealing device of power station boiler body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202993160U true CN202993160U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220728092 Expired - Fee Related CN202993160U (en) | 2012-12-26 | 2012-12-26 | Flexible sealing device of power station boiler body |
Country Status (1)
| Country | Link |
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| CN (1) | CN202993160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406154A (en) * | 2014-11-25 | 2015-03-11 | 上海岱山电力安装工程有限公司 | Furnace top leakproof sealing technology with multi-directional stress absorbing function |
-
2012
- 2012-12-26 CN CN 201220728092 patent/CN202993160U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406154A (en) * | 2014-11-25 | 2015-03-11 | 上海岱山电力安装工程有限公司 | Furnace top leakproof sealing technology with multi-directional stress absorbing function |
| CN104406154B (en) * | 2014-11-25 | 2016-03-30 | 上海岱山电力安装工程有限公司 | A kind of have the furnace roof leak-proof sealing device absorbing multi-faceted stress function |
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| 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: 20130612 Termination date: 20161226 |