CN102384460A - Vertical smoke tube exhaust-heat boiler - Google Patents
Vertical smoke tube exhaust-heat boiler Download PDFInfo
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- CN102384460A CN102384460A CN2011103492536A CN201110349253A CN102384460A CN 102384460 A CN102384460 A CN 102384460A CN 2011103492536 A CN2011103492536 A CN 2011103492536A CN 201110349253 A CN201110349253 A CN 201110349253A CN 102384460 A CN102384460 A CN 102384460A
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Abstract
The invention relates to a vertical smoke tube exhaust-heat boiler. In the vertical smoke tube exhaust-heat boiler, a boiler cylinder is a vertical cylinder body; pipe plates are arranged at openings at upper and lower ends of the boiler cylinder; two ends of a vertical smoke tube are fixedly arranged on through holes corresponding to the upper pipe plate and the lower pipe plate to form a smoke tube bundle; a flue gas inlet smoke box is arranged at the upper end of the boiler cylinder, a flue gas outlet smoke box is arranged at the lower end of the boiler cylinder, and the flue gas inlet smoke box, the flue gas outlet smoke box and the boiler cylinder are connected together; a water supply hole communicated with a cavity of the boiler cylinder is formed on the lower part of the wall of the boiler cylinder; a steam outlet communicated with the cavity of the boiler cylinder is formed on the upper part of the upper pipe plate, and a connection pipe passing through the flue gas inlet smoke box is arranged on the steam outlet; a support is arranged on the outer wall of the boiler cylinder, so that the boiler cylinder is fixed on a steel frame by the support; and the steel frame corresponds to the boiler cylinder and is fixed on a foundation. The vertical smoke tube exhaust-heat boiler has the characteristics of efficient heat transfer, automatic ash removal, modularization and low exhaust gas resistance.
Description
Technical field
The present invention relates to a kind of waste heat boiler, especially the cement kiln tail heat recovery boiler.
Background technology
In existing cement kiln tail bootstrap system, adopt the waterpipe type waste heat boiler more.Because the cement kiln tail EGT is lower, when heating surface adopted the light pipe design, steel consumption was big; For reducing the heating surface steel consumption, increase heating surface area, adopt the extended surface structures in the boiler design in the recent period, like helical fin or H type fin tube structure more.Because dustiness is big in the kiln exit gas, thing followed problem is a fouling of heating surface, causes this type boiler inefficiency in actual motion, and exhaust gas temperature is high, when dust stratification is serious even with boiler, stops up, and causes shutdown of boiler.
In the contained dust of cement kiln exit gas, because raw material generally all has been rich in alkali metal and sulphur, chloride.Behind the boiler heating surface dust stratification, except that reducing boiler thermal output, also can cause the corrosion of heating surface; For guaranteeing the heating surface cleaning, steam, pulse and the vibration dust-cleaning modes of adopting in design when adopting these purge modes more; Not only increased energy resource consumption; Also can cause damage pipe end crackle when adopting vibration dust-cleaning, heating surface booster etc. during steam soot blowing to equipment.When particularly adopting impulse soot blowing and steam soot blowing, aggravate combining of corrosivity composition and steam in the flue gas, improved flue gas dew point; Make boiler heating surface under higher temperature, just begin corrosion; Also possibly make dirt accumulation simultaneously, the effect of steam in addition causes deashing to be difficult to more remove.
Summary of the invention
The object of the present invention is to provide a kind of heat transfer efficiency high, can be from the vertical smoke pipe waste heat boiler of clear dust stratification.
The present invention mainly includes: smoke inlet smoke box, drum, exhanst gas outlet smoke box and steelframe.Wherein, drum is a vertical cylindrical shell, its up and down both ends open be provided with tube sheet, the smoke pipe two ends of plurality of vertical are separately fixed at formation smoke pipe bundle on the corresponding through hole of lower perforated plate.Above-mentioned smoke pipe can be a light pipe, but preferably can increase the screwed pipe or the bellows tube of heat exchange area, also can in smoke pipe, establish turbolator.Be provided with the smoke inlet smoke box in above-mentioned drum upper end, be provided with the exhanst gas outlet smoke box in the drum lower end, the three connects together.Above-mentioned drum wall bottom be provided with its chamber in the through hole that is communicated with promptly give the water hole, upper perforated plate top be provided with the drum chamber in the through hole that is communicated be steam (vapor) outlet, which is provided with connecting leg, this connecting leg that passes the smoke inlet smoke box can link to each other with steam pipework.On the drum sidewall, be provided with two water level meter installing holes up and down, which is provided with a water level meter.Because drum is long, preferably the drum middle part is provided with expansion joint.Be preferably in lower perforated plate be provided with the drum chamber in the through hole that is communicated be mudhole, which is provided with blow-off pipe, this blow-off pipe outlet of passing the exhanst gas outlet smoke box is positioned at outside the exhanst gas outlet smoke box.Drum top also be provided with the drum chamber in the surface blow-off hole that is communicated with.On the drum outer wall, be provided with bearing in addition, can drum be fixed on the steelframe through this bearing.This steelframe is corresponding with drum and is fixed on the framework on the ground, operates for ease and overhauls, and also is provided with the platform staircase on the steelframe.
The course of work of the present invention is summarized as follows: feedwater is generation steam in admission port, drum bottom gets into the drum chamber after after the heating of smoke pipe wall heat-transfer surface, and the steam (vapor) outlet at tube sheet place is discharged and supplied the user to use through the top.The smoke inlet smoke box gets into flue gas from top, gets into respectively in the smoke pipe through upper perforated plate, again via lower perforated plate, converges at the exhanst gas outlet smoke box after heat exchange is lowered the temperature through smoke pipe wall heat-transfer surface, discharges through the cigarette air pipe line.
The present invention compared with prior art has following advantage:
1, adopts the pyrotechnics tubular construction, keep rational flue gas flow rate, rely on smoke pipe to guarantee that from the ability of deashing high efficiency boiler conducts heat under the situation that does not increase deashing device;
2, the heat transfer coefficient of apparatus of the present invention can reach 50 ~ 60W/m
2℃, and the heat transfer coefficient of existing water-tube boiler can only reach 30 ~ 40 W/m
2℃, under the equal conditions, identical heat transfer area, the heat output of apparatus of the present invention are 1.33 ~ 1.4 times of existing boiler.
3, adopt longitudinal to arrange, flue gas is the I font and flows from top to bottom, can make dust natural subsidence entrained in the flue gas, can not produce secondary and carry;
4, the boiler water cycle system adopts the direct current arrangement, at the drum top vapor phase space is set, and feedwater produces little superheated steam after the heating surface heating, can guarantee to be controlled in the scope of 3%-5% at steam moisture content under the situation that does not install water separator additional;
5, in view of the characteristics of cement kiln tail flue-gas temperature between 350 ℃-400 ℃, because flue-gas temperature is lower, select to need not to do special consideration in the material of pressure restraining element, adopt the connected mode that expands and afterwards weld earlier at the smoke inlet end, guarantee not crackle of this tube sheet.
Description of drawings
Fig. 1 is the main simplified schematic diagram of looking of the present invention.
Fig. 2 cuts open simplified schematic diagram for the drum master of the present invention office of looking.
Label declaration in the accompanying drawing
1-smoke inlet smoke box, 2-drum, 3-exhanst gas outlet smoke box, 4-bearing, 5-steelframe, 6-upper perforated plate, 7-smoke pipe, 8-cylindrical shell, 9-lower perforated plate, 10-expansion joint, 11-feed-water intake pipe, 12-water level interface short tube, 13-surface blow-off pipe, 14-steam outlet pipe, 15-blow-off pipe, 16-platform staircase, 17-water level meter.
The specific embodiment
In the sketch map of vertical smoke pipe waste heat boiler illustrated in figures 1 and 2; Drum 2 is a vertical cylindrical shell; Its open upper end is provided with upper perforated plate 6, and its lower ending opening is provided with lower perforated plate 9, and smoke pipe 7 two ends of plurality of vertical are separately fixed on the corresponding through hole of upper perforated plate 6 and lower perforated plate 7 and constitute the smoke pipe tube bank.Be provided with smoke inlet smoke box 1 in above-mentioned drum 2 upper ends, be provided with exhanst gas outlet smoke box 3 in drum 2 lower ends, the three connects together.Above-mentioned drum 2 outer wall bottoms be provided with its chamber in the feed-water intake pipe 11 that is communicated with, upper perforated plate 6 tops be provided with drum 2 chambeies in the steam outlet pipe 14 that is communicated with, this steam outlet pipe 14 that passes smoke inlet smoke box 1 can link to each other with steam pipework.On drum 2 lateral walls, be provided with two water level meters installation short tubes 12 up and down, which is provided with a water level meter 17.Drum 2 middle parts are provided with expansion joint 10.On lower perforated plate 9, be provided with drum 2 chambeies in the blow-off pipe 15 that is communicated with, these blow-off pipe 15 outlets of passing the exhanst gas outlet smoke box are positioned at outside the exhanst gas outlet smoke box 3.Drum 2 tops also be provided with drum 2 chambeies in the surface blow-off pipe 13 that is communicated with.On drum 2 outer walls, be provided with bearing 4 in addition, can drum 2 be fixed on the steelframe 5 through this bearing 4.This steelframe 5 is corresponding with drum and is fixed on the framework on the ground, also is provided with platform staircase 16 on the steelframe 5.
Claims (7)
1. vertical smoke pipe waste heat boiler is characterized in that: drum is a vertical cylindrical shell, its up and down both ends open be provided with tube sheet; Vertical smoke pipe two ends are separately fixed on the corresponding through hole of lower perforated plate and constitute the smoke pipe bundle; Be provided with the smoke inlet smoke box in above-mentioned drum upper end, be provided with the exhanst gas outlet smoke box in the drum lower end, the three connects together; Above-mentioned drum wall bottom be provided with its chamber in be communicated with give the water hole; Upper perforated plate top be provided with the drum chamber in the steam (vapor) outlet that is communicated with, which is provided with the connecting leg that passes the smoke inlet smoke box, on the drum outer wall, be provided with bearing in addition; Can drum be fixed on the steelframe through this bearing, this steelframe is corresponding with drum and is fixed on the framework on the ground.
2. a kind of vertical smoke pipe waste heat boiler according to claim 1 is characterized in that: on the drum sidewall, be provided with two water level meter installing holes up and down, which is provided with a water level meter.
3. a kind of vertical smoke pipe waste heat boiler according to claim 1 and 2 is characterized in that: the drum middle part is provided with expansion joint.
4. a kind of vertical smoke pipe waste heat boiler according to claim 3, it is characterized in that on lower perforated plate, being provided with the drum chamber in the mudhole that is communicated with, which is provided with the blow-off pipe that passes the exhanst gas outlet smoke box.
5. a kind of vertical smoke pipe waste heat boiler according to claim 4 is characterized in that: above-mentioned smoke pipe or light pipe, or screwed pipe, or bellows tube.
6. a kind of vertical smoke pipe waste heat boiler according to claim 5 is characterized in that: establish turbolator in the above-mentioned smoke pipe.
7. a kind of vertical smoke pipe waste heat boiler according to claim 6 is characterized in that:
Above-mentionedAlso be provided with the platform staircase on the steelframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103492536A CN102384460A (en) | 2011-11-08 | 2011-11-08 | Vertical smoke tube exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103492536A CN102384460A (en) | 2011-11-08 | 2011-11-08 | Vertical smoke tube exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102384460A true CN102384460A (en) | 2012-03-21 |
Family
ID=45824126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103492536A Withdrawn CN102384460A (en) | 2011-11-08 | 2011-11-08 | Vertical smoke tube exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102384460A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322341A (en) * | 2016-10-10 | 2017-01-11 | 无锡华光锅炉股份有限公司 | Building structure merged in vertical waste heat boiler |
| CN113959213A (en) * | 2021-09-18 | 2022-01-21 | 阿克苏嘉邦肥业有限公司 | Production process combining waste heat boiler and rotary drum compound fertilizer drying furnace |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2052102U (en) * | 1989-06-03 | 1990-01-31 | 湖南省吉首酿酒总厂 | Boiler rapid heater |
| CN2092666U (en) * | 1990-12-27 | 1992-01-08 | 栾少兴 | Reclaimer for afterheat of flue gas |
| CN2463683Y (en) * | 2000-11-23 | 2001-12-05 | 王树东 | Vertical atmospheric overheated steam boiler |
| CN2463772Y (en) * | 2001-01-02 | 2001-12-05 | 刘文成 | Vertical chimney waste heat boiler |
| CN201093900Y (en) * | 2007-06-19 | 2008-07-30 | 北京建筑工程学院 | Compact type two return-stroke flue tube flue gas condensing energy conservation equipment |
| CN101520279A (en) * | 2009-03-16 | 2009-09-02 | 南通万达锅炉股份有限公司 | Adjusting boiler of low pressure section at cement kiln end |
| CN201615467U (en) * | 2009-05-11 | 2010-10-27 | 余传林 | Vertical waste heat boiler |
| CN202349977U (en) * | 2011-11-08 | 2012-07-25 | 大连易世达新能源发展股份有限公司 | Vertical type smoke tube waste heat boiler |
-
2011
- 2011-11-08 CN CN2011103492536A patent/CN102384460A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2052102U (en) * | 1989-06-03 | 1990-01-31 | 湖南省吉首酿酒总厂 | Boiler rapid heater |
| CN2092666U (en) * | 1990-12-27 | 1992-01-08 | 栾少兴 | Reclaimer for afterheat of flue gas |
| CN2463683Y (en) * | 2000-11-23 | 2001-12-05 | 王树东 | Vertical atmospheric overheated steam boiler |
| CN2463772Y (en) * | 2001-01-02 | 2001-12-05 | 刘文成 | Vertical chimney waste heat boiler |
| CN201093900Y (en) * | 2007-06-19 | 2008-07-30 | 北京建筑工程学院 | Compact type two return-stroke flue tube flue gas condensing energy conservation equipment |
| CN101520279A (en) * | 2009-03-16 | 2009-09-02 | 南通万达锅炉股份有限公司 | Adjusting boiler of low pressure section at cement kiln end |
| CN201615467U (en) * | 2009-05-11 | 2010-10-27 | 余传林 | Vertical waste heat boiler |
| CN202349977U (en) * | 2011-11-08 | 2012-07-25 | 大连易世达新能源发展股份有限公司 | Vertical type smoke tube waste heat boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322341A (en) * | 2016-10-10 | 2017-01-11 | 无锡华光锅炉股份有限公司 | Building structure merged in vertical waste heat boiler |
| CN113959213A (en) * | 2021-09-18 | 2022-01-21 | 阿克苏嘉邦肥业有限公司 | Production process combining waste heat boiler and rotary drum compound fertilizer drying furnace |
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| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20120321 |