CN102338369B - Method and device for sealing body of power station boiler - Google Patents
Method and device for sealing body of power station boiler Download PDFInfo
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- CN102338369B CN102338369B CN201010231447.1A CN201010231447A CN102338369B CN 102338369 B CN102338369 B CN 102338369B CN 201010231447 A CN201010231447 A CN 201010231447A CN 102338369 B CN102338369 B CN 102338369B
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Abstract
The invention relates to a boiler roof sealing device and method, in particular to a method for sealing the body of a power station boiler. the method comprises the following steps of: treating a working surface; fixing sealing dead points; paving a ceramic fiber layer; and paving a diamond stainless steel mesh. The invention also provides a boiler roof sealing device which comprises the ceramic fiber layer and the stainless steel mesh, wherein the ceramic fiber layer is paved on the working surface on which forms expansion difference measurement points among vertical and horizontal wall pipes of the body of the boiler, the stainless steel mesh is arranged on the surface of the ceramic fiber layer, the ceramic fiber layer and the stainless steel mesh are fixed by welding stainless steel nails, the stainless steel nails are arranged on the horizontal working surface in a staggered manner, stainless steel wires are tied to the vertical wall pipes, the welding positions of the stainless steel nails and the tying positions of the stainless steel wires are horizontal sealing dead points and vertical sealing dead points respectively, the area defined by the horizontal sealing dead points is named a horizontal sealing dead point area, the area defined by the vertical sealing dead points is named a vertical sealing dead point area, and the expansion difference measurement points are arranged at the centers of the horizontal sealing dead point area and the vertical sealing dead point area.
Description
Technical field
The present invention relates to a kind of boiler top sealing device and encapsulating method.
Background technology
The sealing device of prior art by a furnace roof steel plate and on the ceramic fibre sealant form, this ceramic fibre sealant is by the high temperature binder between three layers of ceramic fiber layer, every two-layer ceramic fibrage and is laid on three layers of steel mesh above ceramic fiber layer and forms, set gradually one deck plastic refractory lower floor and one deck plastic refractory upper strata on the gap of furnace roof steel plate, shelve a thin plastic septum between the plastic refractory the upper and lower, and cohere layer of metal film at the ceramic fiber layer end face of the superiors.Main encapsulating method is the working face at the furnace roof steel plate, and many of lateral separation welding are spiral reinforcement and pour into a mould plastic refractory lower floor; Lay the thin plastic septum of one deck in the plastic refractory lower floor of coagulation reinforcing bar after, then pour into a mould the plastic refractory upper strata; Lay 3-5 layer ceramic fiber layer on the plastic refractory upper strata, and cohere layer of metal film at the ceramic fiber layer end face of the superiors.
The patent No. is 200810146654.X, patent name has the two-layer fire-resistant plastic bed of material and the thin plastic septum of one deck for ceramic fiber layer lower disposed in " station boiler top combination sealing arrangement and encapsulating method thereof " this technology, the fire-resistant plastic bed of material is in the expanded by heating situation, can crack, to such an extent as to drawing crack is pulverized.And make flue gas in the bottom serial, can not deal with problems thoroughly; Two-layer plastic refractory can increase the supporting power of furnace roof.Sealing means need install the thin plastic septum of one deck additional in the fire-resistant plastic bed of material in addition, and the middle thin plastic septum installed additional requires to melt when hot operation.This kind of way is difficult to while not only constructing at the scene implement, and rolled up the co-ordination of installation workload and cross-operation, and the maintenance of plastic refractory is also caused to difficulty.Thin plastic septum slag after more seriously melting will cause serious potential safety hazard to each pressurized heating pipes road of boiler top, the plastics gas of the melting produced also will, to the top structure generation heavy damages such as heat-insulation layer, have a negative impact with environmental issue to carrying out production strictly in line with rules and regulations of scene simultaneously.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art that a kind of crack problem of thorough solution sealant is provided, the light load-bearing of furnace roof, whole hermetically-sealed construction is compacter, arranges more rational.
For achieving the above object, the technical scheme that the present invention takes is: a kind of encapsulating method of body of power station boiler comprises the steps:
1) work for the treatment of face: the cleaning of polish of boiler body is formed to expansion residual quantity point in length and breadth working face between wall pipe makes working face reach nothing and floats ash and iron rust.
2) determine the sealing dead point: stagger arrangement welding stainless steel lag screws on horizontal working face, the lateral separation of stainless steel lag screws welding is less than or equal to 150mm, and fore-and-aft distance is less than or equal to 100mm;
Vertically on wall pipe, bundling stainless steel wire; The position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, and the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point; Expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point; When soldering stainless steel is followed closely, make between zone, transverse sealing dead point on horizontal working face and described expansion residual quantity point apart from being more than or equal to 250mm; In binding during stainless steel wire, make between zone, longitudinal sealing dead point on vertical wall pipe and described expansion residual quantity point apart from being more than or equal to 250mm;
3) lay ceramic fiber layer: on the working face between described wall pipe, ceramic fiber layer is filled in interference, between ceramic fiber layer and described working face, by high-temperature adhesives, coheres.
4) lay the rhombus stainless (steel) wire: the rhombus stainless (steel) wire that ceramic fiber layer is compressed is laid on the surface at ceramic fiber layer; And on the stainless steel lag screws welded, non-return device is installed.
Further, in described step 4) also include before step: lay the soft net of NI-G manganese: at the ceramic fiber layer laid inside soft net of one deck NI-G manganese at least, use high temperature binder fissure of displacement overlap joint between ceramic fiber layer and the soft net of NI-G manganese.
Further, also include step 5): install fixedly steel wire additional: tie wire on the stainless steel rhombus steel mesh between the wall pipe every 100mm～500mm spacing.
Further, described non-return device is the check pad and is arranged on the reinforcement pad on the check pad.
Further, also include step 6): re-lay ceramic fiber layer and rhombus stainless (steel) wire on vertical wall pipe of boiler ceiling and both walls and front-back wall infall and lateral surface that laterally working face is relative.
The present invention also provides a kind of sealing device of station boiler furnace roof, be included in the ceramic fiber layer of laying on the working face of formation expansion residual quantity point between wall pipe in length and breadth of boiler body, with the stainless (steel) wire be provided with on the ceramic fiber layer surface, ceramic fiber layer and stainless (steel) wire are followed closely fixing by soldering stainless steel, it is characterized in that, on horizontal working face, stagger arrangement is provided with stainless steel lag screws, on vertical wall pipe, bundle is provided with stainless steel wire, the position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point, expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point, zone, transverse sealing dead point on horizontal working face is more than or equal to 250mm with the distance between described expansion residual quantity point, between the regional and described expansion residual quantity point in the longitudinal sealing dead point on vertical wall pipe apart from being more than or equal to 250mm, described ceramic fiber layer is ceramic fiber blanket.
Further, described stainless (steel) wire assumes diamond in shape.
Further, at the ceramic fiber layer laid inside soft net of one deck NI-G manganese at least, between ceramic fiber layer and the soft net of NI-G manganese by high temperature binder fissure of displacement overlap joint.
Further, described transverse sealing dead point distance regional and expansion residual quantity point is B, and the distance of zone, longitudinal sealing dead point and expansion residual quantity point is A, and the transverse sealing dead point is regional and line outer surface zone, longitudinal sealing dead point is arcuation, and arc length is L; After boiler operatiopn, the displacement that described transverse sealing dead point and longitudinal sealing dead point have respectively is b and a, between described A, B, a, b, L, meets L
2>(A+a)
2+ (B+b)
2.
Further, between described wall pipe, on stainless steel rhombus steel mesh, also be provided with steel wire.Generally to be provided with steel wire on the stainless steel rhombus steel mesh between the wall pipe every 100mm～500mm spacing.
The invention has the beneficial effects as follows:
1, stopped to leak in atmosphere, reduced boiler heat loss, improved boiler thermal output;
2, reduce the generation of pipe explosion accident;
3, stop the furnace roof fouling phenomenon, alleviated the supporting power of furnace roof; The flying dust of having stopped other positions of the boiler body phenomenon that leaks outside, improved working environment.
4, alleviate the wearing and tearing to metal pipe-wall and air-introduced machine;
5, reduce the use of station service;
6, be conducive to the improvement of environment, reduced dust and entered in atmosphere.
The accompanying drawing explanation
The structural representation that Fig. 1 is embodiments of the invention 7;
The plan structure schematic diagram that Fig. 2 is embodiments of the invention 7;
The structural representation that Fig. 3 is embodiments of the invention 7;
The structural representation that Fig. 4 is embodiments of the invention 8;
The structural representation that Fig. 5 is embodiments of the invention 9;
The structural representation that Fig. 6 is embodiments of the invention 10;
The structural representation that Fig. 7 is embodiments of the invention 11.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1: a kind of encapsulating method of station boiler furnace roof, comprises the steps: preferably in situation in operating mode
101. work for the treatment of face: the cleaning of polish of boiler body is formed to expansion residual quantity point in length and breadth working face between wall pipe makes working face reach nothing and floats ash and iron rust.
102. determine the sealing dead point: stagger arrangement welding stainless steel lag screws on horizontal working face, the lateral separation of stainless steel lag screws welding is 150mm, fore-and-aft distance is 100mm; Vertically on wall pipe, bundling stainless steel wire; The position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, and the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point; Expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point; When soldering stainless steel is followed closely, making zone, transverse sealing dead point and the distance between described expansion residual quantity point on horizontal working face is 250mm; When the binding stainless steel wire, making zone, longitudinal sealing dead point and the distance between described expansion residual quantity point on vertical wall pipe is 250mm;
103. laying ceramic fiber layer: on the working face between described wall pipe, ceramic fiber layer is filled in interference, between ceramic fiber layer and described working face, by high-temperature adhesives, coheres.
104. lay the rhombus stainless (steel) wire: the rhombus stainless (steel) wire that ceramic fiber layer is compressed is laid on the surface at ceramic fiber layer; And on the stainless steel lag screws welded, non-return device is installed.Described non-return device is the check pad and is arranged on the reinforcement pad on the check pad.
Embodiment 2: identical with embodiment 1, in operating mode under severe condition, also included before embodiment step 104. also comprise step: lay the soft net of NI-G manganese: at the soft net of ceramic fiber layer laid inside multilayer NI-G manganese, use high temperature binder fissure of displacement overlap joint between ceramic fiber layer and the soft net of NI-G manganese.
Embodiment 3: identical with embodiment 1, different is also to comprise step: install fixedly steel wire additional: tie wire on the stainless steel rhombus steel mesh between the wall pipe every the 100mm spacing.
Embodiment 4: identical with embodiment 1, different: described 102 steps are: determine the sealing dead point: stagger arrangement welding stainless steel lag screws on horizontal working face, and the lateral separation of stainless steel lag screws welding is 140mm, fore-and-aft distance is 95mm; Vertically on wall pipe, bundling stainless steel wire; The position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, and the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point; Expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point; When soldering stainless steel is followed closely, making zone, transverse sealing dead point and the distance between described expansion residual quantity point on horizontal working face is 350mm; When the binding stainless steel wire, making zone, longitudinal sealing dead point and the distance between described expansion residual quantity point on vertical wall pipe is 350mm;
Embodiment 5: identical with embodiment 1, different: in described 102 steps: determine the sealing dead point: stagger arrangement welding stainless steel lag screws on horizontal working face, and the lateral separation of stainless steel lag screws welding is 130mm, fore-and-aft distance is 90mm; Vertically on wall pipe, bundling stainless steel wire; The position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, and the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point; Expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point; When soldering stainless steel is followed closely, making zone, transverse sealing dead point and the distance between described expansion residual quantity point on horizontal working face is 500mm; When the binding stainless steel wire, making zone, longitudinal sealing dead point and the distance between described expansion residual quantity point on vertical wall pipe is 500mm;
Embodiment 6: identical with embodiment 3, different is also to comprise step: install fixedly steel wire additional: tie wire on the stainless steel rhombus steel mesh between the wall pipe every the 200mm spacing.
Embodiment 7: as Fig. 1, Fig. 2, Fig. 3, the present invention also provides a kind of sealing device of station boiler furnace roof, be included in the ceramic fiber layer 21 of laying on the working face of formation expansion residual quantity point 11 between wall pipe in length and breadth of boiler body, with the stainless (steel) wire 23 be provided with on ceramic fiber layer 21 surfaces, on horizontal working face, stagger arrangement is provided with stainless steel lag screws 24, on vertical wall pipe 12, bundle is provided with stainless steel wire 25, the position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point, expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point, zone, transverse sealing dead point on horizontal working face is 250 with the distance between described expansion residual quantity point, between the regional and described expansion residual quantity point in the longitudinal sealing dead point on vertical wall pipe apart from being 250, described stainless (steel) wire assumes diamond in shape.Described ceramic fiber layer 21 is ceramic fiber blanket, and is filled with multilayer.At the ceramic fiber layer laid inside soft net of one deck NI-G manganese at least, between ceramic fiber layer and the soft net of NI-G manganese by high temperature binder fissure of displacement overlap joint.Described transverse sealing dead point distance regional and expansion residual quantity point is B, and the distance of zone, longitudinal sealing dead point and expansion residual quantity point is A, and the transverse sealing dead point is regional and line outer surface zone, longitudinal sealing dead point is arcuation, and arc length is L; After boiler operatiopn, the displacement that described transverse sealing dead point and longitudinal sealing dead point have respectively is b and a, between described A, B, a, b, L, meets L
2>(A+a)
2+ (B+b)
2.Between described wall pipe, on stainless steel rhombus steel mesh, also be provided with steel wire.Be provided with metal sealing panel assembly or metal sealing box device on the working face of described formation expansion residual quantity point.The lateral separation c of stainless steel lag screws welding is 150mm, and fore-and-aft distance d is 100mm;
Embodiment 8: as Fig. 4, identical with embodiment 7, different is re-lays ceramic fiber layer and rhombus stainless (steel) wire on boiler ceiling and vertical wall pipe of both walls intersection and lateral surface that laterally working face is relative.And be provided with metal sealing panel assembly 13 on the working face of described formation expansion residual quantity point.Be provided with the soft net 26 of NI-G manganese in described ceramic fiber layer inside.
Embodiment 9: as Fig. 5, identical with embodiment 8, different is to be provided with metal sealing box device 13 on the working face of described formation expansion residual quantity point.
Embodiment 10: as Fig. 6, identical with embodiment 7, different is re-lays ceramic fiber layer and rhombus stainless (steel) wire on boiler ceiling and vertical wall pipe of front wall intersection and lateral surface that laterally working face is relative.And be provided with the metal sealing box device between ceiling wall pipe and vertical wall pipe.Be provided with the soft net 26 of NI-G manganese in described ceramic fiber layer inside.
Embodiment 11: as Fig. 7, identical with embodiment 10, different is at the ceiling wall pipe and vertically between wall pipe, is provided with metal sealing panel assembly 13.
Embodiment 12: identical with embodiment 7, different: expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point; Zone, transverse sealing dead point on horizontal working face is 300 with the distance between described expansion residual quantity point, between the regional and described expansion residual quantity point in the longitudinal sealing dead point on vertical wall pipe apart from being 500.The lateral separation c of stainless steel lag screws welding is 140mm, and fore-and-aft distance d is 95mm;
Embodiment 13: identical with embodiment 7, different: expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point, and the distance between transverse sealing dead point and longitudinal sealing dead point is greater than 500mm; Transverse sealing dead point on horizontal working face and the distance between described expansion residual quantity point are 350, and the longitudinal sealing dead point on vertical wall pipe and the distance between described expansion residual quantity point are 350.The lateral separation c of stainless steel lag screws welding is 130mm, and fore-and-aft distance d is 90mm;
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the encapsulating method of a body of power station boiler, comprise the steps:
1) work for the treatment of face: the cleaning of polish of boiler body is formed to expansion residual quantity point in length and breadth working face between wall pipe makes working face reach nothing and floats ash and iron rust;
2) determine the sealing dead point: stagger arrangement welding stainless steel lag screws on horizontal working face, the lateral separation of stainless steel lag screws welding is less than or equal to 150mm, and fore-and-aft distance is less than or equal to 100mm; Vertically on wall pipe, bundling stainless steel wire; The position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, and the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point; Expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point; When soldering stainless steel is followed closely, make between zone, transverse sealing dead point on horizontal working face and described expansion residual quantity point apart from being more than or equal to 250mm; In binding during stainless steel wire, make between zone, longitudinal sealing dead point on vertical wall pipe and described expansion residual quantity point apart from being more than or equal to 250mm;
3) lay ceramic fiber layer: on the working face between described wall pipe, ceramic fiber layer is filled in interference, between ceramic fiber layer and described working face, by high-temperature adhesives, coheres;
4) lay the rhombus stainless (steel) wire: the rhombus stainless (steel) wire that ceramic fiber layer is compressed is laid on the surface at ceramic fiber layer; And on the stainless steel lag screws welded, non-return device is installed.
2. the encapsulating method of body of power station boiler as claimed in claim 1, it is characterized in that, also included step before described step 4): lay the soft net of NI-G manganese: at the ceramic fiber layer laid inside soft net of one deck NI-G manganese at least, use high-temperature adhesives fissure of displacement overlap joint between ceramic fiber layer and the soft net of NI-G manganese.
3. the encapsulating method of body of power station boiler as claimed in claim 2, is characterized in that, also includes step 5): install fixedly steel wire additional: tie wire on the rhombus stainless (steel) wire between the wall pipe every 100mm～500mm spacing.
4. the encapsulating method of body of power station boiler as claimed in claim 1, is characterized in that, described non-return device is the check pad and is arranged on the reinforcement pad on the check pad.
5. the encapsulating method of body of power station boiler as claimed in claim 3, it is characterized in that, also include step 6): on vertical wall pipe of boiler ceiling and both walls and front-back wall infall and lateral surface that laterally working face is relative, re-lay ceramic fiber layer and rhombus stainless (steel) wire.
6. the sealing device of a body of power station boiler, be included in the ceramic fiber layer of laying on the working face of formation expansion residual quantity point between wall pipe in length and breadth of boiler body, with the stainless (steel) wire be provided with on the ceramic fiber layer surface, ceramic fiber layer and stainless (steel) wire are followed closely fixing by soldering stainless steel, it is characterized in that, on horizontal working face, stagger arrangement is provided with stainless steel lag screws, on vertical wall pipe, bundle is provided with stainless steel wire, the position of the position of stainless steel lag screws welding and stainless steel wire binding is transverse sealing dead point and longitudinal sealing dead point, the zone that described transverse sealing dead point surrounds is zone, transverse sealing dead point, the zone that described longitudinal sealing dead point surrounds is zone, longitudinal sealing dead point, expansion residual quantity point is positioned at the centre in zone, transverse sealing dead point and zone, longitudinal sealing dead point, zone, transverse sealing dead point on horizontal working face and the distance between described expansion residual quantity point are more than or equal to 250mm, zone, longitudinal sealing dead point on vertical wall pipe and the distance between described expansion residual quantity point are more than or equal to 250mm, and described ceramic fiber layer is ceramic fiber blanket.
7. the sealing device of body of power station boiler as claimed in claim 6, is characterized in that, described stainless (steel) wire assumes diamond in shape.
8. the sealing device of body of power station boiler as claimed in claim 6, is characterized in that, lays at least one layer of soft net of NI-G manganese on ceramic fiber layer, between ceramic fiber layer and the soft net of NI-G manganese, by the high-temperature adhesives fissure of displacement, overlaps.
9. as the sealing device of the arbitrary described body of power station boiler of claim 6 to 8, it is characterized in that, zone, described transverse sealing dead point is B with the distance of expansion residual quantity point, the distance of zone, longitudinal sealing dead point and expansion residual quantity point is A, and zone, transverse sealing dead point is arcuation with the line outer surface in zone, longitudinal sealing dead point, and arc length is L; After boiler operatiopn, the displacement that described transverse sealing dead point and longitudinal sealing dead point have respectively is b and a, between described A, B, a, b, L, meets L
2>(A+a)
2+ (B+b)
2.
10. as the sealing device of the arbitrary described body of power station boiler of claim 6 to 8, it is characterized in that, between described wall pipe, also be provided with steel wire on stainless (steel) wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231447.1A CN102338369B (en) | 2010-07-20 | 2010-07-20 | Method and device for sealing body of power station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231447.1A CN102338369B (en) | 2010-07-20 | 2010-07-20 | Method and device for sealing body of power station boiler |
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| Publication Number | Publication Date |
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| CN102338369A CN102338369A (en) | 2012-02-01 |
| CN102338369B true CN102338369B (en) | 2014-01-08 |
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|---|---|---|---|
| CN201010231447.1A Expired - Fee Related CN102338369B (en) | 2010-07-20 | 2010-07-20 | Method and device for sealing body of power station boiler |
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| CN (1) | CN102338369B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062752B (en) * | 2012-12-30 | 2016-01-20 | 深圳市广前电力有限公司 | For the thermal insulation structure of combustion engine waste heat boiler wall pipe |
| CN104006655B (en) * | 2014-05-20 | 2016-04-06 | 江苏华德工业炉有限公司 | Industrial furnace thermal insulation fire-resistant wall |
| CN110068025B (en) * | 2019-04-18 | 2020-08-21 | 安徽省博润电力技术有限公司 | Boiler top flexible sealing device and construction method thereof |
| CN112856476B (en) * | 2021-01-28 | 2023-03-17 | 中国华冶科工集团有限公司 | Boiler top sealing and heat preservation construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3645238A (en) * | 1970-10-19 | 1972-02-29 | Combustion Eng | Flexible seal between roof and sidewalls of a steam generator furnace |
| CN1811270A (en) * | 2006-02-24 | 2006-08-02 | 郭予超 | Method of eliminating fume leakage in top of boiler |
| CN201041344Y (en) * | 2007-06-01 | 2008-03-26 | 过典正 | Sealing device for pipe and boiler body connection part |
| CN101315182A (en) * | 2007-06-01 | 2008-12-03 | 过典正 | Sealing method for combination part of pipe and boiler body |
| CN201269538Y (en) * | 2008-07-07 | 2009-07-08 | 青岛天兰电力实业有限公司 | Combined flexible oven roof sealing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1019203A (en) * | 1996-07-02 | 1998-01-23 | Mitsubishi Heavy Ind Ltd | Device for sealing penetrating portion at furnace wall |
| JP3793344B2 (en) * | 1998-02-04 | 2006-07-05 | バブコック日立株式会社 | Seal structure of boiler furnace wall heat transfer tube penetration |
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2010
- 2010-07-20 CN CN201010231447.1A patent/CN102338369B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3645238A (en) * | 1970-10-19 | 1972-02-29 | Combustion Eng | Flexible seal between roof and sidewalls of a steam generator furnace |
| CN1811270A (en) * | 2006-02-24 | 2006-08-02 | 郭予超 | Method of eliminating fume leakage in top of boiler |
| CN201041344Y (en) * | 2007-06-01 | 2008-03-26 | 过典正 | Sealing device for pipe and boiler body connection part |
| CN101315182A (en) * | 2007-06-01 | 2008-12-03 | 过典正 | Sealing method for combination part of pipe and boiler body |
| CN201269538Y (en) * | 2008-07-07 | 2009-07-08 | 青岛天兰电力实业有限公司 | Combined flexible oven roof sealing device |
Non-Patent Citations (2)
| Title |
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| JP特开平10-19203A 1998.01.23 |
| JP特开平11-223303A 1999.08.17 |
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| CN102338369A (en) | 2012-02-01 |
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Address after: 541012 No. 3 Xing Xing Road, Lingui County, Guilin, the Guangxi Zhuang Autonomous Region Patentee after: Wang Yue Patentee after: Yang Yongqiang Address before: 100011 Beijing City, Xicheng District Street No. 26 Building No. 1 room 1509 Desheng property Patentee before: Wang Yue Patentee before: Yang Yongqiang |
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Address after: 100011 Beijing City, Xicheng District Street No. 26 Building No. 1 room 1509 Desheng property Patentee after: Wang Yue Patentee after: Yang Yongqiang Address before: 541012 No. 3 Xing Xing Road, Lingui County, Guilin, the Guangxi Zhuang Autonomous Region Patentee before: Wang Yue Patentee before: Yang Yongqiang |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20190720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |