CN108954369B - Furnace wall structure of pulverized coal furnace - Google Patents
Furnace wall structure of pulverized coal furnace Download PDFInfo
- Publication number
- CN108954369B CN108954369B CN201811061285.4A CN201811061285A CN108954369B CN 108954369 B CN108954369 B CN 108954369B CN 201811061285 A CN201811061285 A CN 201811061285A CN 108954369 B CN108954369 B CN 108954369B
- Authority
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- China
- Prior art keywords
- furnace
- support
- tube bank
- mentioned
- flame retardant
- Prior art date
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Links
- 239000003245 coal Substances 0.000 title abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000011449 brick Substances 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 22
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a furnace wall structure of a pulverized coal furnace, and belongs to the technical field of machinery. It has solved the problem that prior art exists stability poor. The furnace wall structure of the pulverized coal furnace comprises a support, a refractory layer and a spiral tube bundle, wherein the plurality of supports form a furnace body with a cavity inside, the tube bundle is positioned at the inner side of the support, the refractory layer is positioned between the outer side of the tube bundle and the inner side of the support, the support is provided with a first positioning structure for positioning the refractory layer, and a second positioning structure for positioning the tube bundle in the furnace body is further arranged between the support and the tube bundle. The pulverized coal furnace has high structural stability of the furnace wall.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a furnace wall structure of a pulverized coal furnace.
Background
The body of the boiler needs to have good fire resistance. The furnace body of the existing boiler is usually made of refractory materials, and is commonly and directly piled up by refractory bricks.
However, the furnace body is not enough in strength, and the tube bundles in the furnace body are easy to lean against the inner side of the furnace body, so that the heating of the tube bundles is affected.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a furnace wall structure of a pulverized coal furnace with compact structure and high stability.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a furnace wall structure of buggy stove, its characterized in that, this structure includes support, flame retardant coating and is the tube bank of spiral, and above-mentioned a plurality of supports form the furnace body that inside is the cavity, and above-mentioned tube bank is located the support inboard, and above-mentioned flame retardant coating is located between the tube bank outside and the support inboard, have the location structure one that is used for fixing a position the flame retardant coating on the support, still have between support and the tube bank and can fix a position the location structure two in the furnace body with the tube bank.
The fire-resistant layer is stably connected to the support through the first positioning structure, and the tube bundle is stably connected to the inner side of the support through the second positioning structure.
It can be seen that the stability of the whole furnace wall can be improved under the action of the first positioning structure and the second positioning structure.
The tube bundles are spirally arranged in the furnace wall, so that the tube bundles can be heated stably.
In the furnace wall structure of the pulverized coal furnace, the support comprises a plate-shaped plate body, the positioning structure comprises a plurality of rod-shaped separation rods, the separation rods are transversely arranged and fixedly connected to the inner side of the plate body, the separation rods are uniformly distributed up and down, a connecting cavity is formed between two adjacent separation rods and the plate body, and the refractory layer is fixedly connected to the connecting cavity.
The separation rod is used for separating the inner side of the plate body into a plurality of sections, so that the refractory layer can be ensured to be stably positioned between two adjacent separation rods.
It can be seen that the lack of strength of the refractory layer can be avoided due to the relatively small height and size of the refractory layer.
In the furnace wall structure of the pulverized coal furnace, the refractory layer is refractory bricks.
In the furnace wall structure of the pulverized coal furnace, the refractory layer is a clay insulating brick.
In the furnace wall structure of the pulverized coal furnace, the section of the separation rod is rectangular, and the inside of the separation rod is a cavity.
On the premise of ensuring that the furnace wall has enough strength, the material consumption can be reduced, and the cost of the whole furnace wall can be reduced.
In the furnace wall structure of the pulverized coal furnace, the outer side of the separation rod is provided with a protruding limiting edge, and the outer side of the tube bundle is abutted against the limiting edge.
The limiting edge can prevent the tube bundle from being attached to the inner side of the furnace wall, so that the tube bundle can be ensured to be heated stably.
In the furnace wall structure of the pulverized coal furnace, the limiting edge protrudes out of the side part of the separation rod, and the upper part of the limiting edge is flush with the upper part of the separation rod.
This ensures the compactness of the structure.
In the furnace wall structure of the pulverized coal furnace, a reinforcing structure is arranged between the limiting edge and the side part of the separation rod.
In the furnace wall structure of the pulverized coal furnace, the reinforcing structure comprises a plurality of isosceles right triangle reinforcing ribs, and two right-angle edges of the reinforcing ribs are respectively fixedly connected with the limiting edges and the separation rods.
In the furnace wall structure of the pulverized coal furnace, the plurality of reinforcing ribs are uniformly distributed along the length square of the separation rod.
The setting of additional strengthening can guarantee that spacing department possesses enough intensity.
In the furnace wall structure of the pulverized coal furnace, the second positioning structure comprises a rod-shaped positioning rod, the middle part of the positioning rod penetrates through the plate body and the refractory layer, the outer end of the positioning rod extends out of the plate body, and the inner end of the positioning rod is fixedly connected with the tube bundle.
The tube bundles are stably positioned in the furnace wall through the positioning rods, so that the stability of the furnace wall is improved.
Compared with the prior art, the furnace wall structure of the pulverized coal furnace has the advantages that the fireproof layer is arranged in a segmented mode, so that the strength of the furnace wall is effectively improved, and the furnace wall structure has higher stability.
Meanwhile, the arrangement of the limiting edge can ensure that the tube bundle can be stably heated, so that the stability of the tube bundle is further improved, and the tube bundle is compact in structure and has high practical value.
Drawings
Fig. 1 is a schematic view of a partial sectional structure of a furnace wall structure of the pulverized coal furnace.
In the figure, 1, a plate body; 2. a partition rod; 2a, limiting edges; 3. a refractory layer; 4. a tube bundle; 5. reinforcing ribs; 6. and a positioning rod.
Detailed Description
As shown in fig. 1, the furnace wall structure of the pulverized coal furnace comprises a bracket, a refractory layer 3 and a spiral tube bundle 4, wherein the plurality of brackets form a furnace body with a cavity inside, the tube bundle 4 is positioned at the inner side of the bracket, the refractory layer 3 is positioned between the outer side of the tube bundle 4 and the inner side of the bracket, a first positioning structure for positioning the refractory layer 3 is arranged on the bracket, and a second positioning structure capable of positioning the tube bundle 4 in the furnace body is also arranged between the bracket and the tube bundle 4.
The support is including being platelike plate body 1, a plurality of spacer bars 2 that are the shaft-like that location structure one includes, and above-mentioned spacer bars 2 transversely set up and link firmly in plate body 1 inboard, spacer bars 2 equipartition sets up from top to bottom, forms a connecting chamber between upper and lower adjacent two spacer bars 2 and plate body 1, and above-mentioned flame retardant coating 3 links firmly in connecting chamber department.
The refractory layer 3 is a refractory brick. According to practical situations, it is also feasible that the refractory layer 3 is a clay insulating brick.
The section of the separation rod 2 is rectangular, and the inside of the separation rod is a cavity.
The outside of the separation rod 2 is provided with a protruding limiting edge 2a, and the outside of the tube bundle 4 is abutted against the limiting edge 2 a.
The limiting edge 2a protrudes out of the side part of the separation rod 2, and the upper part of the limiting edge 2a is flush with the upper part of the separation rod 2.
A reinforcing structure is arranged between the limiting edge 2a and the side part of the separation rod 2.
The reinforcing structure comprises a plurality of isosceles right triangle-shaped reinforcing ribs 5, and two right-angle edges of the reinforcing ribs 5 are respectively fixedly connected with the limiting edge 2a and the separation rod 2.
The plurality of reinforcing ribs 5 are uniformly distributed along the length square of the separation rod 2.
The second positioning structure comprises a rod-shaped positioning rod 6, the middle part of the positioning rod 6 is penetrated through the plate body 1 and the refractory layer 3, the outer end of the positioning rod 6 extends out of the plate body 1, and the inner end of the positioning rod 6 is fixedly connected with the tube bundle 4.
The fire-resistant layer is stably connected to the support through the first positioning structure, and the tube bundle is stably connected to the inner side of the support through the second positioning structure.
It can be seen that the stability of the whole furnace wall can be improved under the action of the first positioning structure and the second positioning structure.
The tube bundles are spirally arranged in the furnace wall, so that the tube bundles can be heated stably.
Claims (1)
1. The utility model provides a furnace wall structure of buggy stove, its characterized in that, this structure includes support, flame retardant coating and the tube bank that is the spiral, and above-mentioned a plurality of supports form the inside furnace body that is the cavity, and above-mentioned tube bank is located the support inboard, and above-mentioned flame retardant coating is located between the tube bank outside and the support inboard, have the location structure one that is used for fixing a position the flame retardant coating on the support, still have between support and the tube bank and can fix a position the tube bank in the internal location structure second of furnace, the support is including being platelike plate body, location structure one includes a plurality of spacer bars that are the shaft-like, and above-mentioned spacer bars transversely set up and link firmly in the plate body inboard, the equipartition sets up about the spacer bar, forms a connecting chamber between two upper and lower adjacent spacer bars and the plate body, and above-mentioned flame retardant coating links firmly in connecting chamber department, the flame retardant coating is clay insulating brick, the spacer bar cross-section is rectangle and inside is the cavity, the spacer bar outside has convex spacing edge, and the above-mentioned tube bank outside supports to lean on spacing edge on, spacing edge upper portion and spacer bar upper portion looks parallel and level, a plurality of spacer bars are along the spacer bars, a plurality of equispaced structures and two right angle triangle-shaped spacer bars set up along between the spacer bars and two reinforcing bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061285.4A CN108954369B (en) | 2018-09-12 | 2018-09-12 | Furnace wall structure of pulverized coal furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061285.4A CN108954369B (en) | 2018-09-12 | 2018-09-12 | Furnace wall structure of pulverized coal furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108954369A CN108954369A (en) | 2018-12-07 |
| CN108954369B true CN108954369B (en) | 2024-03-29 |
Family
ID=64476709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811061285.4A Active CN108954369B (en) | 2018-09-12 | 2018-09-12 | Furnace wall structure of pulverized coal furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108954369B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851914A (en) * | 2012-11-30 | 2014-06-11 | 武汉钢铁(集团)公司 | Furnace wall structure of double-heat-storage-type heating furnace |
| CN205137518U (en) * | 2015-10-19 | 2016-04-06 | 浙江特富锅炉有限公司 | Combustion area structure of brickwork |
| CN106225241A (en) * | 2016-08-30 | 2016-12-14 | 浙江特富锅炉有限公司 | Twin furnace heat conducting oil boiler coking-proof structure |
| CN208952150U (en) * | 2018-09-12 | 2019-06-07 | 浙江特富锅炉有限公司 | The furnace wall structure of coal-powder boiler |
-
2018
- 2018-09-12 CN CN201811061285.4A patent/CN108954369B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851914A (en) * | 2012-11-30 | 2014-06-11 | 武汉钢铁(集团)公司 | Furnace wall structure of double-heat-storage-type heating furnace |
| CN205137518U (en) * | 2015-10-19 | 2016-04-06 | 浙江特富锅炉有限公司 | Combustion area structure of brickwork |
| CN106225241A (en) * | 2016-08-30 | 2016-12-14 | 浙江特富锅炉有限公司 | Twin furnace heat conducting oil boiler coking-proof structure |
| CN208952150U (en) * | 2018-09-12 | 2019-06-07 | 浙江特富锅炉有限公司 | The furnace wall structure of coal-powder boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108954369A (en) | 2018-12-07 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 314000 No. 36 Qichao Road, Chang'an Town (Nongfa District), Haining City, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Tefu Development Co.,Ltd. Address before: 314000 No. 36 Qichao Road, Chang'an Town (Nongfa District), Haining City, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG TUFF BOILER Co.,Ltd. Country or region before: China |
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| GR01 | Patent grant |