CN2292245Y - External wet back type oil/gas combustion boiler - Google Patents
External wet back type oil/gas combustion boiler Download PDFInfo
- Publication number
- CN2292245Y CN2292245Y CN 97239726 CN97239726U CN2292245Y CN 2292245 Y CN2292245 Y CN 2292245Y CN 97239726 CN97239726 CN 97239726 CN 97239726 U CN97239726 U CN 97239726U CN 2292245 Y CN2292245 Y CN 2292245Y
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- water
- pipe
- smoke
- cooling wall
- type oil
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- Expired - Fee Related
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Abstract
The utility model relates to an external wet back type oil/gas combustion boiler. A water wall is arranged at the outer end of a barrel body of a boiler shell, water can be sent by a water feed distribution tube which is arranged at the bottom of a hearth to the water wall through a communicating tube at the lower part, the water can exchange heat with smoke gas from the hearth, and water which absorbs heat can enter the barrel body of the boiler shell through the communicating tube at the upper part of the water wall, so that flame can be prevented from scouring a back smoke box directly. The utility model has the advantages of simple structure, reasonable structure, simple manufacturing technology, low steel consumption and wide range of application.
Description
The utility model relates to a kind of external wet back type oil-burning gas-fired boiler.
At present, domestic WNS series fuel oil, gas fired-boiler basic structure mainly contain three kinds: dried back of the body formula, wetting back-type and strile-back type.Though dry-back boiler is simple in structure, the steel consumption is low, because flame directly washes away the back smoke box, easily makes the flue gas short circuit.Though the wetting back-type structure has overcome the shortcoming of dried back of the body formula, it is provided with internal tube plate and inner furnace, thereby steel consumption is increased, the manufacturing process complexity, and this structure only is applicable to wet steamer and hot-water boiler, for superheated steam boiler, superheater is arranged difficulty.The strile-back type structure only is applicable to miniature boiler, and applicable surface is little.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and provides a kind of simple and reasonable for structure, and manufacturing process is simple, the external wet back type oil-burning gas-fired boiler that the steel consumption is low, widely applicable.
The purpose of this utility model can reach by following measure:
A kind of external wet back type oil-burning gas-fired boiler, comprise burner hearth 1 and the smoke pipe be located in the shell cylindrical shell 2, its special character is, described shell cylindrical shell 2 outer ends are provided with water-cooling wall 4, described burner hearth 1 bottom is provided with to water distribution pipe 3, should be to being communicated with the communicating pipe 5 of water distribution pipe 3 with water-cooling wall 4 bottoms, and described communicating pipe 5 is communicated with water-cooling wall 4, described water-cooling wall 4 tops were communicated with top communicating pipe 8, and this communicating pipe 8 is communicated with shell cylindrical shell 2; Described burner hearth 1 is connected with the revolution smoke-box 7 that water-cooling wall 4 constitutes, and revolution smoke-box 7 tops are communicated with described smoke pipe.
Water-cooling wall 4 of the present utility model can be membrane wall type water-cooling wall, and described top communicating pipe 8 and bottom communicating pipe 5 are connected with water pipe 6 two ends of water-cooling wall 4 respectively.
Smoke pipe of the present utility model can comprise two return smoke pipe 10 and the three backhaul smoke pipes 11 that are connected, and two return smoke pipe 10 is connected with revolution smoke-box 7.
Accompanying drawing is a structural representation of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing:
Referring to accompanying drawing, the utility model is provided with water-cooling wall 4 in the outer end of shell cylindrical shell 2, and water-cooling wall 4 adopts the membrane wall form.Burner hearth 1 bottom is provided with to water distribution pipe 3, gives water distribution pipe 3 being communicated with water pipe 6 bottoms of water-cooling wall 4 communicating pipe 5 by water-cooling wall 4 bottoms.Water pipe 6 tops of water-cooling wall 4 are by being communicated with shell cylindrical shell 2 communicating pipe 8.During boiler work, water enters the communicating pipe 5 of water-cooling wall 4 bottoms by giving water distribution pipe 3, again by in the water pipe 6 that enters water-cooling wall 4 communicating pipe 5, from last backhaul, enter as the flue gas that comes in the burner hearth 1 in the revolution smoke-box 7 of water-cooling wall 4 formation, the heat temperature that the water in the water-cooling wall 4 absorbs in the flue gas raises, because the Natural Circulation principle, water after being heated in the water-cooling wall 4 enters shell cylindrical shell 2 to the upper reaches through the communicating pipe 8 on water-cooling wall 4 tops.Smoke pipe comprises two return smoke pipe 10 and three backhaul smoke pipes 11, and flue gas enters two return smoke pipe 10 by revolution smoke-box 7 tops, is discharged by chimney 9 through three backhaul smoke pipes 11 again.
The utility model compared with prior art has following advantage:
1, the high-temperature flue gas that is come by burner hearth directly washes away the water pipe of water-cooling wall, thereby has protected rear smoke box;
2, saved internal tube plate and the inner furnace in the wet-back boiler, manufacture craft is simple, and has reduced steel Consumption;
3, simple in structure, cost is low, uses safety, life-span long;
4, can make the layout of superheated steam boiler superheater easy, reasonable, widely applicable.
Claims (3)
1, a kind of external wet back type oil-burning gas-fired boiler, comprise burner hearth (1) and the smoke pipe be located in the shell cylindrical shell (2), it is characterized in that: described shell cylindrical shell (2) outer end is provided with water-cooling wall (4), described burner hearth (1) bottom is provided with to water distribution pipe (3), should be to being communicated with the communicating pipe (5) of water distribution pipe (3) with water-cooling wall (4) bottom, described communicating pipe (5) is communicated with water-cooling wall (4), described water-cooling wall (4) top was communicated with top communicating pipe (8), and this communicating pipe (8) is communicated with shell cylindrical shell (2); Described burner hearth (1) is connected with the revolution smoke-box (7) that water-cooling wall (4) constitutes, and revolution smoke-box (7) top is communicated with described smoke pipe.
2, external wet back type oil-burning gas-fired boiler as claimed in claim 1 is characterized in that: described water-cooling wall (4) is a membrane wall type water-cooling wall, and described top communicating pipe (8) and bottom communicating pipe (5) are connected with water pipe (6) two ends of water-cooling wall (4) respectively.
3, external wet back type oil-burning gas-fired boiler as claimed in claim 1 or 2 is characterized in that: described smoke pipe comprises two return smoke pipe (10) and the three backhaul smoke pipes (11) that are connected, and two return smoke pipe (10) is connected with revolution smoke-box (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239726 CN2292245Y (en) | 1997-06-25 | 1997-06-25 | External wet back type oil/gas combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239726 CN2292245Y (en) | 1997-06-25 | 1997-06-25 | External wet back type oil/gas combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292245Y true CN2292245Y (en) | 1998-09-23 |
Family
ID=33949646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97239726 Expired - Fee Related CN2292245Y (en) | 1997-06-25 | 1997-06-25 | External wet back type oil/gas combustion boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292245Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287909A (en) * | 2011-06-22 | 2011-12-21 | 南通万达锅炉有限公司 | Horizontal natural gas fired hot-water boiler |
| CN102878543A (en) * | 2011-07-15 | 2013-01-16 | 大震锅炉工业（昆山）有限公司 | Once-through waste heat steam boiler system |
| CN105650866A (en) * | 2016-03-24 | 2016-06-08 | 吉林省鑫华锅炉科技有限责任公司 | Mini-type wet back type three-return gas-fired hot water boiler |
| CN114017762A (en) * | 2021-11-09 | 2022-02-08 | 江苏双良锅炉有限公司 | Horizontal internal combustion steam boiler with porous ceramic medium combustion |
-
1997
- 1997-06-25 CN CN 97239726 patent/CN2292245Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287909A (en) * | 2011-06-22 | 2011-12-21 | 南通万达锅炉有限公司 | Horizontal natural gas fired hot-water boiler |
| CN102287909B (en) * | 2011-06-22 | 2013-06-05 | 南通万达锅炉有限公司 | Horizontal natural gas fired hot-water boiler |
| CN102878543A (en) * | 2011-07-15 | 2013-01-16 | 大震锅炉工业（昆山）有限公司 | Once-through waste heat steam boiler system |
| CN105650866A (en) * | 2016-03-24 | 2016-06-08 | 吉林省鑫华锅炉科技有限责任公司 | Mini-type wet back type three-return gas-fired hot water boiler |
| CN114017762A (en) * | 2021-11-09 | 2022-02-08 | 江苏双良锅炉有限公司 | Horizontal internal combustion steam boiler with porous ceramic medium combustion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |