CN103017135B - Sealing device for manhole door of waste heat boiler of gas turbine - Google Patents
Sealing device for manhole door of waste heat boiler of gas turbine Download PDFInfo
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- CN103017135B CN103017135B CN201210588406.7A CN201210588406A CN103017135B CN 103017135 B CN103017135 B CN 103017135B CN 201210588406 A CN201210588406 A CN 201210588406A CN 103017135 B CN103017135 B CN 103017135B
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- manhole door
- doorframe
- door
- manhole
- waste heat
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Abstract
The invention discloses a sealing device for a manhole door of a waste heat boiler of a gas turbine. The sealing device comprises a boiler shell guard board, a doorframe and the manhole door, wherein the doorframe is connected with the boiler shell guard board and takes the shape of a ladder; a manhole door lining matched with the doorframe for use is arranged on the manhole door, and a ceramic fiber blanket is filled between the manhole door and the manhole door lining; a sealing piece is arranged between the doorframe and the manhole door lining; and the sealing piece is arranged between the horizontal position of the ladder-shaped doorframe and the horizontal position of the ladder-shaped manhole door lining. The sealing device for the manhole door of the waste heat boiler of the gas turbine has the following advantages that the ladder-shaped doorframe and the manhole door lining are adopted, so that the flow of high-temperature flue gas is effectively blocked; and ceramic-fiber braided ropes are arranged at the gap between the doorframe and the manhole door lining, so that the high-temperature flue gas is thoroughly prevented from overflowing.
Description
Technical field
The present invention relates to a kind of gas-turbine waste heat boiler, particularly a kind of gas-turbine waste heat boiler manhole door sealing device.
Background technology
For convenience of gas-turbine waste heat boiler maintenance and repair to boiler internal equipment in the time stopping transport, need on flue region and heating surface region, settle manhole door, manhole door not only will make people come in and go out safely, and to ensure the isolation of waste heat boiler internal environment in service and external environment condition, guarantee that high-temperature flue gas does not leak.
Use at present the manhole door device on gas-turbine waste heat boiler to be formed by the doorframe forming with flanged plate and furnace shell backplate, connect to form door opening by doorframe and furnace shell backplate again, manhole door is inserted in door opening, for convenience of opening smoothly manhole door, between the each limit of manhole door and doorframe, conventionally reserve the gap of 2mm.The shortcoming of this manhole door is: in the time of boiler operatiopn, high-temperature flue gas is easy to overflow from the gap between manhole door and doorframe, thereby easily manhole door outside boiler is caused to potential safety hazard around.
Summary of the invention
Technical problem to be solved by this invention is, the gas-turbine waste heat boiler manhole door sealing device that provides a kind of effective prevention high-temperature flue gas to leak.
For solving the problems of the technologies described above, gas-turbine waste heat boiler manhole door sealing device provided by the invention, doorframe and manhole door that it comprises furnace shell backplate, is connected with furnace shell backplate, described doorframe is stepped, described manhole door is provided with the manhole door door lining being used in conjunction with doorframe, between described manhole door and manhole door door lining, be filled with ceramic fiber blanket, between doorframe and manhole door door lining, be provided with seal, described seal is located between stairstepping doorframe horizontal level and stairstepping manhole door door lining horizontal level.Adopt stepped design mode, effectively hindered flowing of high-temperature flue gas, that ceramic fiber blanket integrates is fire-resistant, heat insulation, be incubated, and therefore has good sealing effectiveness, has prevented the loss of heat in waste heat boiler simultaneously, has good heat insulation effect.
As preferably, described seal is made up of ceramic fibre kernmantle and high-dimensional paper, and described high-dimensional paper is wrapped in the outside of ceramic fibre kernmantle, and the lap-joint at high-dimensional paper two ends is fixedly connected with doorframe.Ceramic fibre kernmantle has good sealing effectiveness, and high-dimensional paper has again well fire-resistant, fire-proof function, under the hot environment of waste heat boiler, has thoroughly stoped overflowing of high-temperature flue gas.
As preferably, in described high-dimensional paper, be enclosed with two ceramic fibre kernmantles, the lap-joint at high-dimensional paper two ends is provided with tapping screw and packing ring, and described seal is fixed on doorframe by tapping screw and packing ring, and described tapping screw is located at the centre of two ceramic fibre kernmantles.Make sealing effectiveness reach best.
As preferably, the thickness of described tapping screw head is less than the thickness of the ceramic fibre kernmantle being wrapped in high-dimensional paper.While preventing from closing manhole door, manhole door door lining is directly expressed to the head of tapping screw, and not by the compacting of ceramic fibre kernmantle, affects sealing effectiveness.
Adopt after above structure, gas-turbine waste heat boiler manhole door sealing device of the present invention compared with prior art, has the following advantages:
1,, when conveniently opening manhole door smoothly, there is good sealing effectiveness.
2, adopt stepped design doorframe and manhole door door lining, effectively hindered flowing of high-temperature flue gas;
3, doorframe and manhole door door lining gap location arrange ceramic fibre kernmantle, thoroughly stop high-temperature flue gas to overflow.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is seal configuration schematic diagram of the present invention.
Wherein: furnace shell backplate 1, doorframe 2, manhole door 3, manhole door door lining 4, seal 5, ceramic fibre kernmantle 6, high-dimensional paper 7, ceramic fiber blanket 8, tapping screw 9, packing ring 10.
Detailed description of the invention
Below by embodiment, the invention will be further described by reference to the accompanying drawings.
As shown in Fig. 1~Fig. 2, the gas-turbine waste heat boiler manhole door sealing device that the present embodiment provides, it comprises furnace shell backplate 1, the doorframe 2 being connected with furnace shell backplate 1 and manhole door 3, described doorframe 2 is stepped, described manhole door 3 is provided with the manhole door door lining 4 being used in conjunction with doorframe 2, between described manhole door 3 and manhole door door lining 4, be filled with ceramic fiber blanket 8, between stairstepping doorframe 2 horizontal levels and stairstepping manhole door door lining 4 horizontal levels, be provided with the seal 5 being formed by ceramic fibre kernmantle 6 and high-dimensional paper 7, in described high-dimensional paper 7, be enclosed with two ceramic fibre kernmantles 6, the lap-joint at high-dimensional paper 7 two ends is provided with tapping screw 9 and packing ring 10, described seal 5 is fixed on doorframe 2 by tapping screw 9 and packing ring 10, described tapping screw 9 is located at the centre of two ceramic fibre kernmantles 6, the thickness of tapping screw 9 heads is less than the thickness of the ceramic fibre kernmantle 6 being wrapped in high-dimensional paper 7.
Claims (2)
1. a gas-turbine waste heat boiler manhole door sealing device, doorframe and manhole door that it comprises furnace shell backplate, is connected with furnace shell backplate, it is characterized in that: described doorframe is stepped, described manhole door is provided with the manhole door door lining being used in conjunction with doorframe, between described manhole door and manhole door door lining, be filled with ceramic fiber blanket, between doorframe and manhole door door lining, be provided with seal, described seal is located between stairstepping doorframe horizontal level and stairstepping manhole door door lining horizontal level; Described seal is made up of ceramic fibre kernmantle and high-dimensional paper, in described high-dimensional paper, be enclosed with two ceramic fibre kernmantles, the lap-joint at high-dimensional paper two ends is provided with tapping screw and packing ring, described seal is fixed on doorframe by tapping screw and packing ring, and described tapping screw is located at the centre of two ceramic fibre kernmantles.
2. gas-turbine waste heat boiler manhole door sealing device according to claim 1, is characterized in that: the thickness of described tapping screw head is less than the thickness of the ceramic fibre kernmantle being wrapped in high-dimensional paper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210588406.7A CN103017135B (en) | 2012-12-29 | 2012-12-29 | Sealing device for manhole door of waste heat boiler of gas turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201210588406.7A CN103017135B (en) | 2012-12-29 | 2012-12-29 | Sealing device for manhole door of waste heat boiler of gas turbine |
Publications (2)
Publication Number | Publication Date |
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CN103017135A CN103017135A (en) | 2013-04-03 |
CN103017135B true CN103017135B (en) | 2014-09-10 |
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CN201210588406.7A Active CN103017135B (en) | 2012-12-29 | 2012-12-29 | Sealing device for manhole door of waste heat boiler of gas turbine |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114056540B (en) * | 2021-10-26 | 2023-05-05 | 航天特种材料及工艺技术研究所 | Cabin door heat sealing material component and preparation method thereof |
Citations (6)
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DE20009668U1 (en) * | 2000-05-30 | 2000-08-31 | Moeck Gmbh & Co Kg Geb | Device for closing inspection openings on chimneys |
CN2420509Y (en) * | 2000-04-21 | 2001-02-21 | 吴石民 | Man hole door of engineering device |
CN101907292A (en) * | 2010-07-14 | 2010-12-08 | 袁福林 | Vertical environment-friendly boiler for triple dedusting burning wood and biological particle fuel in boiler |
CN102062020A (en) * | 2011-01-05 | 2011-05-18 | 北京航空航天大学 | Transparent combustion chamber with square interior passage |
CN202132928U (en) * | 2011-06-15 | 2012-02-01 | 安徽国电能源设备工程有限公司 | Multiple-insulating manhole of energy storage electric boiler |
CN203115968U (en) * | 2012-12-29 | 2013-08-07 | 杭州锅炉集团股份有限公司 | Sealing device of manhole door of waste heat boiler of combustion gas turbine |
-
2012
- 2012-12-29 CN CN201210588406.7A patent/CN103017135B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2420509Y (en) * | 2000-04-21 | 2001-02-21 | 吴石民 | Man hole door of engineering device |
DE20009668U1 (en) * | 2000-05-30 | 2000-08-31 | Moeck Gmbh & Co Kg Geb | Device for closing inspection openings on chimneys |
CN101907292A (en) * | 2010-07-14 | 2010-12-08 | 袁福林 | Vertical environment-friendly boiler for triple dedusting burning wood and biological particle fuel in boiler |
CN102062020A (en) * | 2011-01-05 | 2011-05-18 | 北京航空航天大学 | Transparent combustion chamber with square interior passage |
CN202132928U (en) * | 2011-06-15 | 2012-02-01 | 安徽国电能源设备工程有限公司 | Multiple-insulating manhole of energy storage electric boiler |
CN203115968U (en) * | 2012-12-29 | 2013-08-07 | 杭州锅炉集团股份有限公司 | Sealing device of manhole door of waste heat boiler of combustion gas turbine |
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CN103017135A (en) | 2013-04-03 |
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Address after: 310004 No. 245 Dong Xin Road, Xiacheng District, Zhejiang, Hangzhou Patentee after: Xizi clean energy equipment manufacturing Co.,Ltd. Patentee after: Hangzhou Hangguo heavy equipment manufacturing Co., Ltd Address before: 310004 No. 245 Dong Xin Road, Xiacheng District, Zhejiang, Hangzhou Patentee before: HANGZHOU BOILER GROUP Co.,Ltd. Patentee before: Hangzhou Hangguo heavy equipment manufacturing Co., Ltd |