CN105736888A - Pulverized coal boiler separator outlet flue structure - Google Patents
Pulverized coal boiler separator outlet flue structure Download PDFInfo
- Publication number
- CN105736888A CN105736888A CN201610276725.2A CN201610276725A CN105736888A CN 105736888 A CN105736888 A CN 105736888A CN 201610276725 A CN201610276725 A CN 201610276725A CN 105736888 A CN105736888 A CN 105736888A
- Authority
- CN
- China
- Prior art keywords
- outlet flue
- separator outlet
- flue structure
- heat insulation
- boiler separator
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
Abstract
The invention discloses a pulverized coal boiler separator outlet flue structure. The pulverized coal boiler separator outlet flue structure comprises expansion joints, expansion seams are formed among the expansion joints, heat insulation frames made of heatproof steel wire meshes are arranged in the expansion seams and filled with heat insulation materials, and the expansion seams are filled with a plurality of heat insulation material layers below the heat insulation frames. The pulverized coal boiler separator outlet flue structure has the advantages that in high-temperature working environments, since the heatproof steel wire meshes can expand to a certain degree, even if the expansion seams contract, the heat insulation frames cannot drop; the positions below the heat insulation frames are filled with the heat insulation material layers to serve as supports so as to play a protecting role in the expansion joints.
Description
Technical field
The present invention relates to pulverized-coal fired boiler technical field, especially, relate to a kind of pulverized-coal fired boiler separator outlet flue structure.
Background technology
Referring to Fig. 1, pulverized-coal fired boiler separator outlet flue structure generally comprises in the prior art, expansion joint 1, offers dilatation joint 2 between expansion joint 1, and in dilatation joint 2, interval arranges asbestos cord 3 as heat-barrier material.Operationally, dilatation joint 2 very easily produces to shrink, and after contraction, the gap of dilatation joint 2 will expand, and the asbestos cord 3 of setting will produce to come off, and under the protection premise losing heat-barrier material, high temperature is easy to burn expansion joint 1.
Summary of the invention
Present invention aim at providing a kind of pulverized-coal fired boiler separator outlet flue structure, to solve in prior art, the asbestos cord filled in dilatation joint is easy to fall off, causes the problem that expansion joint easily burns.
For achieving the above object, the present invention provides a kind of pulverized-coal fired boiler separator outlet flue structure, including expansion joint, is provided with dilatation joint between described expansion joint, is provided with the thermal-insulated frame that heat resisting steel silk screen is made, filling with insulation material in described thermal-insulated frame in dilatation joint；Below described thermal-insulated frame, in described dilatation joint, it is filled with multilayer insulation material layer.
Further, described heat-barrier material and described insulation material layer are alumina silicate fiber felt.
Further, described expansion joint adopts mullite pouring material.
The method have the advantages that
In high-temperature work environment, heat resisting steel silk screen has certain expansion, even if dilatation joint shrinks, thermal-insulated frame, without whereabouts, is filled with insulation material layer as support below thermal-insulated frame simultaneously, and this structure can be good at expansion joint is played a protective role.
Accompanying drawing explanation
Below with reference to figure, the present invention is further detailed explanation.The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of pulverized-coal fired boiler separator outlet flue of the prior art；And
Fig. 2 is the structural representation of pulverized-coal fired boiler separator outlet flue structure preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Refer to Fig. 2, the preferred embodiments of the present invention provide a kind of pulverized-coal fired boiler separator outlet flue structure, including expansion joint 10, are provided with dilatation joint between described expansion joint 10, the thermal-insulated frame 11 that heat resisting steel silk screen is made, filling with insulation material in described thermal-insulated frame 11 it is provided with in dilatation joint；Below described thermal-insulated frame 10, in described dilatation joint, it is filled with multilayer insulation material layer 12.In high-temperature work environment, heat resisting steel silk screen has certain expansion, even if dilatation joint shrinks, thermal-insulated frame 11, without whereabouts, is filled with insulation material layer 12 as support below thermal-insulated frame 11 simultaneously, and this structure can be good at expansion joint 10 is played a protective role.
Preferably, described heat-barrier material and described insulation material layer 12 are alumina silicate fiber felt.The resistance to elevated temperatures of alumina silicate fiber felt is fine, and maximum operation (service) temperature is up to 1300 DEG C.Meanwhile, thermal conductivity is low, and heat-proof quality is good, under equal conditions uses, and aluminium silicate products is lower by more than 30% than other insulation material thermal conductivity.
Preferably, for improving the resistance to elevated temperatures of expansion joint 10, described expansion joint 10 adopts mullite pouring material.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention；For a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. a pulverized-coal fired boiler separator outlet flue structure, including expansion joint, is provided with dilatation joint between described expansion joint, it is characterised in that: it is provided with the thermal-insulated frame that heat resisting steel silk screen is made, filling with insulation material in described thermal-insulated frame in dilatation joint；Below described thermal-insulated frame, in described dilatation joint, it is filled with multilayer insulation material layer.
2. pulverized-coal fired boiler separator outlet flue structure according to claim 1, it is characterised in that:
Described heat-barrier material and described insulation material layer are alumina silicate fiber felt.
3. pulverized-coal fired boiler separator outlet flue structure according to claim 2, it is characterised in that:
Described expansion joint adopts mullite pouring material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276725.2A CN105736888B (en) | 2016-04-29 | 2016-04-29 | Pulverized-coal fired boiler separator outlet flue structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276725.2A CN105736888B (en) | 2016-04-29 | 2016-04-29 | Pulverized-coal fired boiler separator outlet flue structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736888A true CN105736888A (en) | 2016-07-06 |
| CN105736888B CN105736888B (en) | 2018-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610276725.2A Active CN105736888B (en) | 2016-04-29 | 2016-04-29 | Pulverized-coal fired boiler separator outlet flue structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736888B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311473A (en) * | 1997-05-07 | 1998-11-24 | Chugoku Bendo Kk | Expansion joint for repairing and its installing method |
| CN201715496U (en) * | 2010-07-23 | 2011-01-19 | 陈晓军 | High temperature non-metal compensator for a CFB boiler |
| CN202372008U (en) * | 2011-12-26 | 2012-08-08 | 贵阳铝镁设计研究院有限公司 | Refractory brick wall |
| CN202581292U (en) * | 2012-05-14 | 2012-12-05 | 杭州锅炉集团股份有限公司 | Labyrinth sealing expansion joint for hearth outlet of circulating fluidized bed boiler |
| CN204459585U (en) * | 2014-10-29 | 2015-07-08 | 中国神华能源股份有限公司 | Non-metal expansion joint |
-
2016
- 2016-04-29 CN CN201610276725.2A patent/CN105736888B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311473A (en) * | 1997-05-07 | 1998-11-24 | Chugoku Bendo Kk | Expansion joint for repairing and its installing method |
| CN201715496U (en) * | 2010-07-23 | 2011-01-19 | 陈晓军 | High temperature non-metal compensator for a CFB boiler |
| CN202372008U (en) * | 2011-12-26 | 2012-08-08 | 贵阳铝镁设计研究院有限公司 | Refractory brick wall |
| CN202581292U (en) * | 2012-05-14 | 2012-12-05 | 杭州锅炉集团股份有限公司 | Labyrinth sealing expansion joint for hearth outlet of circulating fluidized bed boiler |
| CN204459585U (en) * | 2014-10-29 | 2015-07-08 | 中国神华能源股份有限公司 | Non-metal expansion joint |
Non-Patent Citations (1)
| Title |
|---|
| 卢啸风: "《大型循环硫化床锅炉设备与运行》", 1 February 2006 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105736888B (en) | 2018-10-26 |
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