CN202024299U - Anti-coking large-scale coal burning boiler - Google Patents
Anti-coking large-scale coal burning boiler Download PDFInfo
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- CN202024299U CN202024299U CN2010206879715U CN201020687971U CN202024299U CN 202024299 U CN202024299 U CN 202024299U CN 2010206879715 U CN2010206879715 U CN 2010206879715U CN 201020687971 U CN201020687971 U CN 201020687971U CN 202024299 U CN202024299 U CN 202024299U
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- tube
- tubes
- slag
- convection
- heater
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Abstract
An anti-coking large-scale coal burning boiler belongs to the boiler manufacturing technology field, comprises a boiler body; a plurality of heating tubes and a plurality of convection tubes are disposed in the boiler body; the convection tubes are respectively arranged on the right side o the heating tubes; an upper steam bubble apparatus is disposed on the top of the boiler body, and a lower steam bubble apparatus is disposed on the middle portion of the inner side of the boiler body; two ends of each convection tube are respectively fixed with the upper and the lower steam bubble apparatus; line-arranged rear water cooling wall tubes are disposed between the heating tubes and the convection tubes; line-arranged anti-slag tubes are fixed on the lower ends of the water cooling wall tubes; the lower part of an anti-slag tube is bent at the interval of at least one, while all the bent anti-slag tubes are toward the same direction; the outlet ends of the bent anti-slag tubes are fixedly connected with a lower collecting box which is in communication with the lower steam bubble apparatus by a pipeline. The above arrangement can reduce the section thermal load inside the boiler body, thereby reduces the temperature inside the boiler body to below 900 DEG which is lower than the melting point of coal ash, consequently, prevents the coal ash from fusing and coagulating on the pipeline, and avoids that the boiler cannot work normally caused by the coke obstruction in the hearth.
Description
Technical field
The utility model relates to a kind of manufacturing technology field of boiler, particularly a kind of manufacturing technology field of large coal-fired boiler.
Background technology
Existing large coal-fired boiler comprises body of heater, bottom in described body of heater left side is provided with coal feed point, bottom on described body of heater right side is provided with exhanst gas outlet, in described body of heater, heating tube is set, right side at described heating tube is provided with convection tube, the discharging of flue gas is risen through heating tube earlier, and then descend through convection tube, discharge from exhanst gas outlet at last, flue gas time of staying in burner hearth is longer, and the furnace profile thermic load is big (coal ash fusion temperature of colm is about 900 ℃), the easy coking of convection tube transversal flow, cinder condenses on the heating tube, stops up burner hearth, makes boiler to move.
Summary of the invention
In order to solve the problem of the easy coking of existing coal-burning boiler, the utility model provides a kind of anti-coking large coal-fired boiler.
The utility model comprises body of heater, bottom in the left side of described body of heater is provided with coal feed point, bottom on the right side of described body of heater is provided with exhanst gas outlet, at described bottom of furnace body slag-drip opening is set, some heating tubes are set in described body of heater, some convection tubes, described convection tube is arranged in the right side of described heating tube, upper top at described body of heater is provided with Shanghai Automobile Factory's bulb apparatus, at described furnace body inside middle part steam bubble device down is set, the two ends of described each convection tube be fixedly connected on respectively described on, on the following steam bubble device, between described heating tube and convection tube, set the back water screen tube in a row, lower end at described back water screen tube is fixedly connected into the slag screen of arranging and putting, described slag screen is communicated with the back water screen tube, bottom at the slag screen of being separated by at least is provided with bending, described each bending is towards the same side, described bending the fixedly connected next part case of the port of export of slag screen, described next part case is communicated with following steam bubble device by pipeline.
The utility model increases by one section water screen tube in a row in the lower end of original back water screen tube and forms slag screen, in row's slag screen, the be separated by lower end of one or a few slag screen is provided with bending, bending is directly connected on the next part case, the next part case is communicated with following steam bubble device by pipeline again, bending part forms bigger exhaust gases passes, flue gas originally all is to rise through heating tube, and then, discharge from exhanst gas outlet at last, by above-mentioned improvement through convection tube decline, an existing flue gas part is discharged according to original path, a part of then discharge by the passage that slag screen bottom bending forms, the discharge of air is accelerated like this, thermic load reduction in cross section in the stove, temperature is lower than 900 ℃ in the stove, temperature does not reach the fusing point of coal ash, and coal ash can not be condensed on the pipeline in fusion yet, the situation of having avoided the burner hearth coking and blocking to move.
The utility model is provided with bending on the top of described back water screen tube, and the bending on water screen tube top is left and right sides interlaced arrangement after described adjacent two, and the upper outlet end of described back water screen tube is connected described going up on the air bubble apparatus.The upper end of back water screen tube is provided with bending, and the interlaced layout of bending, and flue gas becomes big through the passage on slag screen top like this, it is big that flow becomes, further shorten the time of flue gas in body of heater, better reduced cross section thermic load in the stove, the situation of having avoided the burner hearth coking and blocking to move.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Among the figure, 1, body of heater, 2, coal feed point, 3, exhanst gas outlet, 4, heating tube, 5, convection tube, 6, slag screen, 7, bending, 8, slag-drip opening, 9, Shanghai Automobile Factory's bulb apparatus, 10, steam bubble device down, 11, the back water screen tube, 12, bending, 13, the next part case.
The specific embodiment
As Fig. 1, shown in 2, this anti-coking coal-burning boiler, comprise body of heater 1, bottom in the left side of body of heater is provided with coal feed point 2, bottom on the right side of body of heater 1 is provided with exhanst gas outlet 3, in body of heater 1 bottom slag-drip opening 8 is set, some heating tubes 4 are set in body of heater 1, some convection tubes 5, convection tube 5 is arranged in the right side of heating tube 4, upper top at body of heater 1 is provided with Shanghai Automobile Factory's bulb apparatus 9, in body of heater 1 middle inside steam bubble device 10 down is set, the two ends of each convection tube are fixedly connected on respectively, following steam bubble device 9, on 10, set back water screen tube 11 in a row between heating tube 4 and convection tube 5, be fixedly connected into the slag screen 6 of arranging and putting in the lower end of back water screen tube 11, slag screen 6 is communicated with back water screen tube 11, bottom at the slag screen 6 of being separated by at least is provided with bending 12, each bending 12 is towards the same side, bending 12 the fixedly connected next part case 13 of the port of export of slag screen 6, next part case 13 is communicated with following steam bubble device 10 by pipeline.Top at back water screen tube 11 is provided with bending 7, and the bending 7 on water screen tube 11 tops is left and right sides interlaced arrangement after adjacent two, and the upper outlet end of back water screen tube 11 is connected on Shanghai Automobile Factory's bulb apparatus 9.
Claims (2)
1. anti-coking large coal-fired boiler, comprise body of heater, bottom in the left side of described body of heater is provided with coal feed point, bottom on the right side of described body of heater is provided with exhanst gas outlet, at described bottom of furnace body slag-drip opening is set, some heating tubes are set in described body of heater, some convection tubes, described convection tube is arranged in the right side of described heating tube, upper top at described body of heater is provided with Shanghai Automobile Factory's bulb apparatus, at described furnace body inside middle part steam bubble device down is set, the two ends of described each convection tube be fixedly connected on respectively described on, on the following steam bubble device, between described heating tube and convection tube, set the back water screen tube in a row, it is characterized in that being fixedly connected into the slag screen of arranging and putting in the lower end of described back water screen tube, described slag screen is communicated with the back water screen tube, in the bottom of the slag screen of being separated by at least bending is set, and described each bending is towards the same side, described bending the fixedly connected next part case of the port of export of slag screen, described next part case is communicated with following steam bubble device by pipeline.
2. anti-coking large coal-fired boiler according to claim 1, it is characterized in that bending being set on the top of described back water screen tube, the bending on water screen tube top is left and right sides interlaced arrangement after described adjacent two, and the upper outlet end of described back water screen tube is connected on the described Shanghai Automobile Factory bulb apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206879715U CN202024299U (en) | 2010-12-30 | 2010-12-30 | Anti-coking large-scale coal burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206879715U CN202024299U (en) | 2010-12-30 | 2010-12-30 | Anti-coking large-scale coal burning boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202024299U true CN202024299U (en) | 2011-11-02 |
Family
ID=44849247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206879715U Expired - Fee Related CN202024299U (en) | 2010-12-30 | 2010-12-30 | Anti-coking large-scale coal burning boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202024299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864281A (en) * | 2019-09-30 | 2020-03-06 | 南京江宁区上峰国银标准件厂 | Fluidized furnace with water-cooled wall soaking heat preservation mechanism |
-
2010
- 2010-12-30 CN CN2010206879715U patent/CN202024299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864281A (en) * | 2019-09-30 | 2020-03-06 | 南京江宁区上峰国银标准件厂 | Fluidized furnace with water-cooled wall soaking heat preservation mechanism |
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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: 20111102 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |