CN203980647U - Small-sized pulverized-coal fired boiler - Google Patents
Small-sized pulverized-coal fired boiler Download PDFInfo
- Publication number
- CN203980647U CN203980647U CN201420348662.3U CN201420348662U CN203980647U CN 203980647 U CN203980647 U CN 203980647U CN 201420348662 U CN201420348662 U CN 201420348662U CN 203980647 U CN203980647 U CN 203980647U
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- China
- Prior art keywords
- flue
- fired boiler
- coal fired
- burner hearth
- plaster
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Abstract
A kind of small-sized pulverized-coal fired boiler, includes burner hearth, is provided with coal burner and pulverized-coal fired boiler chamber on burner hearth, in described burner hearth, is provided with flue, and the inwall of described flue is waveform configuration; Inner side in described flue is provided with coat of plaster, and the thickness of coat of plaster is 45-50mm; In described coat of plaster, be provided with the multiple and vertically disposed heating part of flue, described heating part is aciculiform structure.Heating part has increased the heating surface area of flue, has improved the thermal efficiency of boiler.
Description
Technical field
The utility model relates to boiler plant technical field, more particularly, and particularly a kind of small-sized pulverized-coal fired boiler.
Background technology
Small-sized pulverized-coal fired boiler is warming heating equipment conventional in prior art, it includes boiler body, be formed with burner hearth in boiler body inside, in burner hearth, carry out the burning of fuel, and the heat that fuel combustion is produced by heat exchange action outputs to the outside of small-sized pulverized-coal fired boiler.Owing to being directly burning in burner hearth, the medial surface of burner hearth is directly subject to flame baking, so there will be the long problem of burner hearth heated time, damages larger to burner hearth steel plate.
Utility model content
In view of this, the utility model provides a kind of small-sized pulverized-coal fired boiler, to address the above problem.
For achieving the above object, the utility model provides following technical scheme:
A kind of small-sized pulverized-coal fired boiler, includes burner hearth, is provided with coal burner and pulverized-coal fired boiler chamber on burner hearth, in described burner hearth, is provided with flue, and the inwall of described flue is waveform configuration; Inner side in described flue is provided with coat of plaster, and the thickness of coat of plaster is 45-50mm; In described coat of plaster, be provided with the multiple and vertically disposed heating part of flue.
Described coat of plaster is that aluminous refractory is made.
Described heating part is aciculiform structure.
Described heating part and flue are weldingly connected.
In the utility model, flue, for waveform configuration designs, has preferably flexible expansion character after burner hearth is heated, increase the service life.Increase the heating part of aciculiform in flue straight portion, increased the heating surface area of flue, improved the thermal efficiency of boiler.At flue straight portion heating surface, coat of plaster is set, has improved fire box temperature when coal dust is burnt in flue, more fully, completely, flame is direct baking flue steel plate not, has increased the service life of boiler for coal dust firing.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the middle-size and small-size pulverized-coal fired boiler of a kind of embodiment of the utility model;
Fig. 2 is the structure for amplifying schematic diagram at a place in Fig. 1;
In Fig. 1 and Fig. 2, the corresponding relation of component names and Reference numeral is:
1, coal burner; 2, pulverized-coal fired boiler chamber; 3, burner hearth; 4, flue; 5, coat of plaster; 6, heating part.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, wherein, Fig. 1 is the structural representation of the middle-size and small-size pulverized-coal fired boiler of a kind of embodiment of the utility model; Fig. 2 is the structure for amplifying schematic diagram at a place in Fig. 1.
A kind of small-sized pulverized-coal fired boiler, includes burner hearth 3, is provided with coal burner 1 and pulverized-coal fired boiler chamber 2 on burner hearth 3, is provided with flue 4 in described burner hearth, and the inwall of described flue 4 is waveform configuration; Be provided with coat of plaster 5 in the inner side of described flue 4, the thickness of coat of plaster 5 is 47mm; In described coat of plaster 5, be provided with the multiple and vertically disposed heating part 6 of flue 4.Described coat of plaster 5 is made for aluminous refractory.Described heating part 6 is weldingly connected with flue 4.Described heating part 6 is aciculiform structure.
In the utility model, the flue 4 being formed by waveform configuration sidewall can be set to one or more, and being so arranged so that has preferably flexible expansion character after burner hearth 3 is heated, and increases the service life.Increase the heating part 6 of aciculiform in flue 4 straight portion, increased the heating surface area of flue 4, improved the thermal efficiency of boiler.
Coat of plaster 5 makes coal dust in the time of the interior burning of flue 4, improve fire box temperature, and more fully, completely, flame is direct baking flue 4 steel plates not for coal dust firing.
In an embodiment, burner hearth 3 is columnar structured design, on the medial surface of burner hearth 3, is provided with the steel plate that is heated.Be provided with the thickness that the steel plate that is heated has been equivalent to increase the madial wall of burner hearth 3, thereby increase the intensity of burner hearth 3, reduce the incidence of its damage.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a small-sized pulverized-coal fired boiler, includes burner hearth (3), is provided with coal burner (1) and pulverized-coal fired boiler chamber (2) on burner hearth (3), it is characterized in that,
In described burner hearth, be provided with flue (4),
The inwall of described flue (4) is waveform configuration;
Be provided with coat of plaster (5) in the inner side of described flue (4), the thickness of coat of plaster (5) is 45-50mm;
In described coat of plaster (5), be provided with the multiple and vertically disposed heating part of flue (4) (6).
2. small-sized pulverized-coal fired boiler according to claim 1, is characterized in that,
Described coat of plaster (5) is made for aluminous refractory.
3. small-sized pulverized-coal fired boiler according to claim 1, is characterized in that,
Described heating part (6) is aciculiform structure.
4. small-sized pulverized-coal fired boiler according to claim 1, is characterized in that,
Described heating part (6) is weldingly connected with flue (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348662.3U CN203980647U (en) | 2014-06-27 | 2014-06-27 | Small-sized pulverized-coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348662.3U CN203980647U (en) | 2014-06-27 | 2014-06-27 | Small-sized pulverized-coal fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203980647U true CN203980647U (en) | 2014-12-03 |
Family
ID=51978078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348662.3U Expired - Fee Related CN203980647U (en) | 2014-06-27 | 2014-06-27 | Small-sized pulverized-coal fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203980647U (en) |
-
2014
- 2014-06-27 CN CN201420348662.3U patent/CN203980647U/en not_active Expired - Fee Related
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Legal Events
| 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 |
Granted publication date: 20141203 Termination date: 20190627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |