CN204254583U - Steam boiler flue - Google Patents
Steam boiler flue Download PDFInfo
- Publication number
- CN204254583U CN204254583U CN201420664606.0U CN201420664606U CN204254583U CN 204254583 U CN204254583 U CN 204254583U CN 201420664606 U CN201420664606 U CN 201420664606U CN 204254583 U CN204254583 U CN 204254583U
- Authority
- CN
- China
- Prior art keywords
- backhaul smoke
- smoke box
- level
- smoke pipe
- afterbody
- 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.)
- Expired - Fee Related
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- Chimneys And Flues (AREA)
Abstract
The utility model discloses a kind of steam boiler flue, belong to steam boiler technical field, comprise and be arranged on shell, one-level backhaul smoke box, go out smoke box and secondary backhaul smoke box, drum is provided with in described shell, main chamber is formed between described drum and shell, described main chamber front portion is communicated with the crater of combustor, rear portion is communicated with described one-level backhaul smoke box, one-level backhaul smoke pipe is provided with between described one-level backhaul smoke box and secondary backhaul smoke box, described secondary backhaul smoke box and go out between smoke box to be provided with secondary backhaul smoke pipe, the internal diameter of described one-level backhaul smoke pipe afterbody is less than the internal diameter of stem, the afterbody of described one-level backhaul smoke pipe is arranged near described secondary backhaul smoke box, the internal diameter of described secondary backhaul smoke pipe afterbody is less than the internal diameter of stem, the afterbody of described secondary backhaul smoke pipe near described in go out smoke box and arrange.The utility model takes full advantage of heat energy, avoids the thermal pollution to environment, and structure is simple, and cost is low.
Description
Technical field
The utility model belongs to steam boiler technical field, particularly relates to a kind of steam boiler flue.
Background technology
Steam boiler is Industrial Boiler water being heated to certain parameter and producing high-temperature steam, belongs to special equipment.Because its fired heat duty is low, combustion thermal efficiency is high, effectively can reduce exhaust gas temperature, energy-saving and cost-reducing, uses economy, is therefore widely used.
During steam boiler work, first ignition combustion machine, fuel enters the main chamber burning of steam boiler from the crater of combustor, flame goes directly burner hearth bottom, and the water directly heated in drum, then high-temperature flue gas returns furnace front by one-level backhaul smoke pipe, enters secondary backhaul smoke pipe through front smoke box, finally, after the low-temperature flue gas after sufficient heat exchange passes through, smoke box is to exhanst gas outlet; And the water in drum creates high-temperature steam by heat exchange.
But flue gas is when chimney is discharged, and the temperature of flue gas is still higher, there is wasted heat and environment caused to the problem of thermal pollution.At present, some vapor boiler is in order to make full use of heat energy, and at chimney, place arranges waste-heat recovery device, but cost can be caused again to improve like this.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of steam boiler flue, there is wasted heat and technical problem environment being caused to thermal pollution to solve existing steam boiler.
For solving the problems of the technologies described above, the technical solution of the utility model is: steam boiler flue, comprise the one-level backhaul smoke box at the shell rear portion being arranged on described steam boiler and go out smoke box, smoke box inside is gone out described in described one-level backhaul smoke box is positioned at, described go out smoke box be provided with chimney, the front portion of described shell is provided with secondary backhaul smoke box, drum is provided with in described shell, main chamber is formed between described drum and shell, described main chamber front portion is communicated with the crater of combustor, rear portion is communicated with described one-level backhaul smoke box, one-level backhaul smoke pipe is provided with between described one-level backhaul smoke box and secondary backhaul smoke box, described secondary backhaul smoke box and go out between smoke box to be provided with secondary backhaul smoke pipe, described one-level backhaul smoke pipe and secondary backhaul smoke pipe are all positioned at described drum, the internal diameter of described one-level backhaul smoke pipe afterbody is less than the internal diameter of stem, the afterbody of described one-level backhaul smoke pipe is arranged near described secondary backhaul smoke box, the internal diameter of described secondary backhaul smoke pipe afterbody is less than the internal diameter of stem, the afterbody of described secondary backhaul smoke pipe near described in go out smoke box and arrange.
Improve as one, described one-level backhaul smoke pipe afterbody is located on described secondary backhaul smoke box by interior welding, and stem is located on described one-level backhaul smoke box by external welding; Described secondary backhaul smoke pipe afterbody goes out on smoke box described in being located at by interior welding, and stem is located on described secondary backhaul smoke box by external welding.
Improving as one, in described main chamber, being provided with some reinforcement tubes for making water pass through.
After have employed technique scheme, the beneficial effects of the utility model are: because steam boiler flue devises shell, one-level backhaul smoke box, go out smoke box, chimney, secondary backhaul smoke box, main chamber, drum, one-level backhaul smoke pipe and secondary backhaul smoke pipe, thus in use, the flame of combustor crater enters main chamber and directly heats water in drum, the high-temperature flue gas that burning produces, enter one-level backhaul smoke box successively, one-level backhaul smoke pipe, secondary backhaul smoke box, secondary backhaul smoke pipe and go out smoke box, then discharge from chimney, inner at drum, realize the heat exchange of water and high-temperature flue gas, water heating is produced high-temperature steam, internal diameter due to described one-level backhaul smoke pipe afterbody is less than the internal diameter of stem, the internal diameter of described secondary backhaul smoke pipe afterbody is less than the internal diameter of stem, the plume that thus can strengthen with heat goes out the resistance of one-level, secondary backhaul smoke pipe, make heat in the time lengthening of one-level, secondary backhaul smoke pipe, the time that water in drum absorbs heat extends too, improves heat utilization rate.The steam boiler flue that the utility model provides, takes full advantage of heat energy, avoids the thermal pollution to environment, and structure is simple, and cost is low.
Due to the afterbody of one-level backhaul smoke pipe afterbody and secondary backhaul smoke pipe all pass through in be welded to connect, stem is all connected by external welding, makes stem keep original internal diameter by external welding, afterbody is by interior welding reduced inner diameter, method is easy, and structure is simple, and cost is low.
Owing to being provided with some reinforcement tubes for making water pass through in described main chamber, not only increased the area of heat conversion by reinforcement tube, and play the effect hindering heat flow, make the time of staying of heat in drum long, further increase heat utilization rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, shell, 2, one-level backhaul smoke box, 3, go out smoke box, 4, chimney, 5, secondary backhaul smoke box, 6, main chamber, 7, drum, 8, crater, 9, one-level backhaul smoke pipe, 10, secondary backhaul smoke pipe, 11, reinforcement tube;
Filled arrows represents heat flow process.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of steam boiler flue, comprise the one-level backhaul smoke box 2 at shell 1 rear portion being arranged on steam boiler and go out smoke box 3, it is inner that one-level backhaul smoke box 2 is positioned at smoke box 3, go out smoke box 3 and be provided with chimney 4, the front portion of shell 1 is provided with secondary backhaul smoke box 5, drum 7 is provided with in shell 1, main chamber 6 is formed between drum 7 and shell 1, main chamber 6 front portion is communicated with the crater 8 of combustor, rear portion is communicated with one-level backhaul smoke box 2, one-level backhaul smoke pipe 9 is provided with between one-level backhaul smoke box 2 and secondary backhaul smoke box 5, secondary backhaul smoke box 5 and go out between smoke box 3 to be provided with secondary backhaul smoke pipe 10, one-level backhaul smoke pipe 9 and secondary backhaul smoke pipe 10 are all positioned at drum 7.
The internal diameter of one-level backhaul smoke pipe 9 afterbody is less than the internal diameter of stem, and the afterbody of one-level backhaul smoke pipe 9 is arranged near secondary backhaul smoke box 5, and the internal diameter of secondary backhaul smoke pipe 10 afterbody is less than the internal diameter of stem, and the afterbody of secondary backhaul smoke pipe 10 is arranged near going out smoke box 3.
One-level backhaul smoke pipe 9 afterbody is located on secondary backhaul smoke box 5 by interior welding, and stem is located on one-level backhaul smoke box 2 by external welding; Secondary backhaul smoke pipe 10 afterbody is located at out on smoke box 3 by interior welding, and stem is located on secondary backhaul smoke box 5 by external welding, makes both stem keep original internal diameter by external welding, afterbody is by interior welding reduced inner diameter, method is easy, and structure is simple, and cost is low.
Being provided with some reinforcement tubes 11 for making water pass through in main chamber 6, being not only increased the area of heat conversion by reinforcement tube 11, and play the effect hindering heat flow, make the time of staying of heat in drum 7 long, further increase heat utilization rate.
Its operation principle is as follows:
In use, the flame of combustor crater 8 enters the water in main chamber 6 direct heating drum 7, the high-temperature flue gas that burning produces, enter one-level backhaul smoke box 2, one-level backhaul smoke pipe 9, secondary backhaul smoke box 5, secondary backhaul smoke pipe 10 successively and go out smoke box 3, then discharge from chimney 4, inner at drum 7, realize the heat exchange of water and high-temperature flue gas, water heating is produced high-temperature steam.
Internal diameter due to one-level backhaul smoke pipe 9 afterbody is less than the internal diameter of stem, the internal diameter of secondary backhaul smoke pipe 10 afterbody is less than the internal diameter of stem, the plume that thus can strengthen with heat goes out the resistance of one-level backhaul smoke pipe 9 and secondary backhaul smoke pipe 10, make heat in the time lengthening of one-level backhaul smoke pipe 9 and secondary backhaul smoke pipe 10, the time that water in drum 7 absorbs heat extends too, improves heat utilization rate.
The steam boiler flue that the utility model provides, takes full advantage of heat energy, avoids the thermal pollution to environment, and structure is simple, and cost is low.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. steam boiler flue, comprise the one-level backhaul smoke box at the shell rear portion being arranged on described steam boiler and go out smoke box, smoke box inside is gone out described in described one-level backhaul smoke box is positioned at, described go out smoke box be provided with chimney, the front portion of described shell is provided with secondary backhaul smoke box, drum is provided with in described shell, main chamber is formed between described drum and shell, described main chamber front portion is communicated with the crater of combustor, rear portion is communicated with described one-level backhaul smoke box, one-level backhaul smoke pipe is provided with between described one-level backhaul smoke box and secondary backhaul smoke box, described secondary backhaul smoke box and go out between smoke box to be provided with secondary backhaul smoke pipe, described one-level backhaul smoke pipe and secondary backhaul smoke pipe are all positioned at described drum, it is characterized in that, the internal diameter of described one-level backhaul smoke pipe afterbody is less than the internal diameter of stem, the afterbody of described one-level backhaul smoke pipe is arranged near described secondary backhaul smoke box, the internal diameter of described secondary backhaul smoke pipe afterbody is less than the internal diameter of stem, the afterbody of described secondary backhaul smoke pipe near described in go out smoke box and arrange.
2. steam boiler flue according to claim 1, is characterized in that, described one-level backhaul smoke pipe afterbody is located on described secondary backhaul smoke box by interior welding, and stem is located on described one-level backhaul smoke box by external welding; Described secondary backhaul smoke pipe afterbody goes out on smoke box described in being located at by interior welding, and stem is located on described secondary backhaul smoke box by external welding.
3. steam boiler flue according to claim 1 and 2, is characterized in that, is provided with some reinforcement tubes for making water pass through in described main chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664606.0U CN204254583U (en) | 2014-11-07 | 2014-11-07 | Steam boiler flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664606.0U CN204254583U (en) | 2014-11-07 | 2014-11-07 | Steam boiler flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204254583U true CN204254583U (en) | 2015-04-08 |
Family
ID=52958884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420664606.0U Expired - Fee Related CN204254583U (en) | 2014-11-07 | 2014-11-07 | Steam boiler flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204254583U (en) |
-
2014
- 2014-11-07 CN CN201420664606.0U patent/CN204254583U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20191107 |