CN102809167A - Boiler with automatic ash cleaning function - Google Patents
Boiler with automatic ash cleaning function Download PDFInfo
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- CN102809167A CN102809167A CN2011101571849A CN201110157184A CN102809167A CN 102809167 A CN102809167 A CN 102809167A CN 2011101571849 A CN2011101571849 A CN 2011101571849A CN 201110157184 A CN201110157184 A CN 201110157184A CN 102809167 A CN102809167 A CN 102809167A
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- flue
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Abstract
A boiler with an automatic ash cleaning function comprises a main flue and a plurality of heated sides arranged in the main flue. A first partition and a second partition are sequentially arranged in the main flue along the flow direction of smoke. The main flue is divided into a first auxiliary flue and a third auxiliary flue side by side by the first partition and is divided into a second auxiliary flue and a fourth auxiliary flue side by side by the second partition. The heated sides are arranged from the first auxiliary flue to the fourth auxiliary flue. Smoke inlets or outlets from the first auxiliary flue to the fourth auxiliary flue are provided with flue valves. A first thermometer and a third thermometer are arranged at an inlet and an outlet of the main flue, a second thermometer is arranged between the first partition and the second partition. The first thermometer, the second thermometer and the third thermometer are connected with a controller which is connected with a driving device. The driving device and the flue valves are connected so as to drive the flue valves to open or close according to judgment results of the controller. Ash on the heated sides can be cleaned automatically, running maintenance cost of the boiler can be reduced, and running economy and safe stability of the boiler are improved.
Description
Technical field
The present invention relates to a kind of boiler, relate in particular to a kind of boiler with automatic ash removing function.
Background technology
Along with the fast development of industrial society, boiler is used widely, and the dust stratification problem often takes place the heating surface of boiler.Ash content in the fuel can produce flying dust and get in the flue gas in combustion process, also possibly sneak into the dust that production technology produces in the flue gas of industrial furnaces such as cement, pottery, glass.After these flying dusts and dust enter into boiler along with flue gas, can be deposited on the heating surface of boiler, the heat transfer resistance of flue gas and heating surface increases, and the exhaust gas temperature of boiler increases, and heat loss due to exhaust gas increases, and boiler efficiency reduces.
The reset mode of existing boiler heating surface dust stratification comprises acoustic wave ash ejector, shock-wave ash blowing device, steam sootblower etc., and there is following problem in these purge modes: it is range limited to blow ash, has the deashing dead angle; Need consumption of compressed air, combustion gas, steam equal energy source medium; Cause violence to impact and corrosion to heating surface, influence the life-span of heating surface.Given this, boiler needs frequent blowing out, and the mode that adopts the water flushing is to the heating surface deashing, and the availability that this not only directly influences boiler also causes the corrosion of heating surface.
Summary of the invention
The object of the present invention is to provide a kind of boiler, to solve the cost height that has the removing ash of boiler mode now and exist, the problem that influences boiler efficiency and heated surface corrosion with automatic ash removing function.
To achieve these goals; Boiler with automatic ash removing function provided by the invention comprises flue collector, a plurality of heating surface; Said a plurality of heating surface is located in the said flue collector, it is characterized in that, is provided with first demarcation strip and second demarcation strip that are provided with along the flow of flue gas direction successively in the said flue collector; Said first demarcation strip is divided into arranged side by side first minute flue and the 3rd fen flue with said flue collector; Said second demarcation strip is divided into arranged side by side second minute flue and the 4th fen flue with said flue collector, and said a plurality of heating surfaces are located in said first to fourth minute flue, and the exhanst gas outlet or the inlet of said first to fourth minute flue are provided with Flue valve; The inlet of said flue collector is provided with first thermometer; The outlet of said flue collector is provided with the 3rd thermometer; Be provided with second thermometer between said first demarcation strip and said second demarcation strip; Said first to the 3rd thermometer all be used for judging that according to the detection data of said first to the 3rd thermometer controller of said first to fourth minute flue generation dust stratification is connected; Said controller is connected with a drive unit, and said drive unit is connected with said Flue valve and drives said Flue valve with the judged result according to said controller and open or close.
According to above-mentioned a kind of preferred implementation with boiler of automatic ash removing function, wherein, the exhanst gas outlet of said first and the 3rd fen flue is provided with said Flue valve, and the gas approach of said second and the 4th fen flue is provided with said Flue valve.
According to above-mentioned a kind of preferred implementation with boiler of automatic ash removing function, wherein, the import of said flue collector also is respectively arranged with the flue gas pressures table to monitor the pressure of said flue collector with outlet, and said flue gas pressures table is connected with said controller.
The present invention can realize the deashing of heating surface through the switching of adjustment gas fume valve, reduced boiler operation expense, improved the security and stability of boiler operatiopn.In addition, flue structure design of the present invention does not exist blows grey dead angle problem, and deashing is thorough, can effectively improve the utilization rate of heating surface and reduce exhaust gas temperature, raising boiler efficiency.
Description of drawings
Fig. 1 is the structural representation of the flue collector of the preferred embodiment of the present invention;
Fig. 2 is the preferred embodiment of the present invention one a user mode reference diagram.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is explained further details.
Fig. 1 and Fig. 2 show the reference diagram of one of schematic structure and user mode of the preferred embodiment of the present invention; Shown in the two; This preferred embodiment comprises flue collector 9 and a plurality of heating surfaces 3,10, and flue collector 9 comprises flue collector import 2 and flue collector outlet 11, and flue collector 9 is inverted U-shaped; Flue demarcation strip 18 and 15 along the flow direction of flue gas be located at flue collector 9 about in two sections, two sections below is equipped with ash discharging hole 13 about flue collector 9.In Fig. 1 and Fig. 2, arrow 1 expression gets into the hot flue gas of flue collector, and arrow 12 expressions are through the cold flue gas of heat exchange, and hollow arrow is represented the flow direction of flue gas.
Flue is cut apart plate 18 flue collector 9 in left side has been divided into branch flue 17 and has divided flue 19, divides the exhanst gas outlet of flue 17,19 that Flue valve 4,5 is set respectively.Flue is cut apart plate 15 flue collector 9 on right side has been divided into branch flue 14 and has divided flue 16, divides the smoke inlet of flue 14,16 that Flue valve 8,7 is set respectively.
The smoke inlet side of branch flue 17,19 is provided with flue-gas temperature meter 21, the exhanst gas outlet side is provided with flue-gas temperature meter 6, divides the exhanst gas outlet side of flue 14,16 that flue-gas temperature meter 20 is set. Thermometer 6,20,21 all is connected with a controller (not shown), and this controller is used for judging that according to the temperature data of thermometer 6,20,21 detected diverse locations dividing flue 17,19 that dust stratification has taken place still divides flue 14,16 that dust stratification has taken place.This controller also is connected with a drive unit, and this drive unit is connected with Flue valve 4,5,7,8, and accepts the control of this controller, drives Flue valve 4,5,7,8 according to the judged result of controller and opens or closes.The Flue valve of using in the driving of Flue valve 4,5,7,8 of the present invention and manner of execution and the field of boilers at present is identical; But purposes is different; For example a plurality of Flue valves 4 can be connected with the output shaft of a motor through one or four connecting rod structures; Motor is as drive unit, and the rotation of motor output shaft drives Flue valve 4 and in certain angle, swings, and realizes the opening and closing of Flue valve 4 whereby.In addition, utilize controller judgement numerical values recited and send the technology that control signal also can obviously be known by inference for those skilled in the art to drive unit in view of the above, repeat no more at this.
Flue collector import 2 is provided with chimney intake Pressure gauge 23, exports 11 flue outlet Pressure gauges 22 at flue collector, the pressure condition of monitoring flue, and inlet pressure gauge 23, delivery gauge 22 all are connected with controller, and boiler is implemented pressure protect.For example: if the reading of delivery gauge 22 is low excessively, forbid Flue valve 4,5,7,8 is closed, avoid the burner hearth internal negative pressure of boiler low excessively, boiler is damaged.Also be; Controller is at first judged the numerical value of inlet pressure gauge 23, delivery gauge 22; When the numerical value of two Pressure gauges 22,23 is lower than common institute permissible level; Even thermometer 6,20,21 has shown in branch flue 14,16 or 17,19 dust stratification takes place, controller can not cut out a certain valve 4,5,7,8 yet.As shown in Figure 2; In application; If flue-gas temperature meter 21 detected flue-gas temperatures do not raise, and flue-gas temperature meter 6 detected flue-gas temperature values raise, and explain that dust stratification takes place the heating surface 3 in the branch flue 17,19; Controller receives the temperature data of thermometer 6,21 and judges that the difference of the two has surpassed setting value; Controller sends control signal makes drive unit close branch Flue valve 4, open and divide Flue valve 5, increases the flue gas flow rate that flue gas passes branch flue 19, realizes the deashing to minute flue 19 internal heating surfaces 3; Open branch Flue valve 4 subsequently, close branch Flue valve 5, increase the flue gas flow rate that flue gas passes branch flue 17, realize deashing minute flue 17 internal heating surfaces 3.When thermometer 6,21 detected flue-gas temperatures meet normal temperature, controller judges that deashing finishes, and sends control signal and makes drive unit keep dividing a Flue valve 4 and 5 to be in opening.
Flue-gas temperature meter 20 detected flue-gas temperature values raise if flue-gas temperature meter 6 detected temperature values do not raise; Explain that dust stratification takes place heating surface 10; Can close branch Flue valve 7, open and divide Flue valve 8; Increase the flue gas flow rate that flue gas passes branch flue 14, realize deashing this minute flue 14 internal heating surfaces 10; Open branch Flue valve 7 subsequently, close branch Flue valve 8, increase the flue gas flow rate that flue gas passes branch flue 16, realize deashing minute flue 16 internal heating surfaces 10.After deashing finishes, keep dividing Flue valve 7 and 8 to be in opening.
In sum; The present invention is through being provided with the flue demarcation strip and dividing Flue valve in the flue collector of boiler, and divides in difference and to cooperate open and close between the Flue valve, increases the flow velocity that flue gas passes corresponding heating surface; Realize the deashing of heating surface; Do not need consumption of compressed air, combustion gas, steam equal energy source medium, only realize the deashing of heating surface through the switching of adjustment gas fume valve, reduced boiler operation expense, improved the security and stability of boiler operatiopn.In addition, flue structure design of the present invention does not exist blows grey dead angle problem, and deashing is thorough, can effectively improve the utilization rate of heating surface, effectively reduces exhaust gas temperature, improves boiler efficiency.
Can know that by technological general knowledge the present invention can realize through other the embodiment that does not break away from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change in being equal to scope of the present invention all comprised by the present invention.
Claims (3)
1. boiler with automatic ash removing function; Comprise flue collector, a plurality of heating surface; Said a plurality of heating surface is located in the said flue collector, it is characterized in that, is provided with first demarcation strip and second demarcation strip that are provided with along the flow of flue gas direction successively in the said flue collector; Said first demarcation strip is divided into arranged side by side first minute flue and the 3rd fen flue with said flue collector; Said second demarcation strip is divided into arranged side by side second minute flue and the 4th fen flue with said flue collector, and said a plurality of heating surfaces are located in said first to fourth minute flue, and the exhanst gas outlet or the inlet of said first to fourth minute flue are provided with Flue valve;
The inlet of said flue collector is provided with first thermometer; The outlet of said flue collector is provided with the 3rd thermometer; Be provided with second thermometer between said first demarcation strip and said second demarcation strip; Said first to the 3rd thermometer all be used for judging that according to the detection data of said first to the 3rd thermometer controller of said first to fourth minute flue generation dust stratification is connected; Said controller is connected with a drive unit, and said drive unit is connected with said Flue valve and drives said Flue valve with the judged result according to said controller and open or close.
2. the boiler with automatic ash removing function according to claim 1 is characterized in that, the exhanst gas outlet of said first and the 3rd fen flue is provided with said Flue valve, and the gas approach of said second and the 4th fen flue is provided with said Flue valve.
3. the boiler with automatic ash removing function according to claim 1 is characterized in that, the import of said flue collector also is respectively arranged with the flue gas pressures table to monitor the pressure of said flue collector with outlet, and said flue gas pressures table is connected with said controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101571849A CN102809167A (en) | 2011-06-03 | 2011-06-03 | Boiler with automatic ash cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101571849A CN102809167A (en) | 2011-06-03 | 2011-06-03 | Boiler with automatic ash cleaning function |
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| Publication Number | Publication Date |
|---|---|
| CN102809167A true CN102809167A (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101571849A Pending CN102809167A (en) | 2011-06-03 | 2011-06-03 | Boiler with automatic ash cleaning function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202750A (en) * | 2015-08-31 | 2015-12-30 | 太仓英达锅炉设备有限公司 | Boiler device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344388A (en) * | 1977-11-07 | 1982-08-17 | Foster Wheeler Energy Corporation | Vapor generating system utilizing integral separators and angularly arranged furnace boundary wall fluid flow tubes having rifled bores |
| CN85107016A (en) * | 1984-11-30 | 1986-05-10 | 三菱重工业株式会社 | Boiler |
| CN86100970A (en) * | 1985-02-20 | 1986-08-20 | 三菱重工业株式会社 | Boiler |
| CN201028469Y (en) * | 2007-04-30 | 2008-02-27 | 夏正 | W shaped full natural circulation sulfurous iron ore exhaust-heat boiler |
| AU2007203229A1 (en) * | 2006-10-13 | 2008-05-01 | Hitachi Power Europe Gmbh | Single-pass boiler with control pass |
| CN202125957U (en) * | 2011-06-03 | 2012-01-25 | 何秀锦 | Boiler with automatic deashing function |
-
2011
- 2011-06-03 CN CN2011101571849A patent/CN102809167A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344388A (en) * | 1977-11-07 | 1982-08-17 | Foster Wheeler Energy Corporation | Vapor generating system utilizing integral separators and angularly arranged furnace boundary wall fluid flow tubes having rifled bores |
| CN85107016A (en) * | 1984-11-30 | 1986-05-10 | 三菱重工业株式会社 | Boiler |
| CN86100970A (en) * | 1985-02-20 | 1986-08-20 | 三菱重工业株式会社 | Boiler |
| AU2007203229A1 (en) * | 2006-10-13 | 2008-05-01 | Hitachi Power Europe Gmbh | Single-pass boiler with control pass |
| CN201028469Y (en) * | 2007-04-30 | 2008-02-27 | 夏正 | W shaped full natural circulation sulfurous iron ore exhaust-heat boiler |
| CN202125957U (en) * | 2011-06-03 | 2012-01-25 | 何秀锦 | Boiler with automatic deashing function |
Non-Patent Citations (1)
| Title |
|---|
| 中国机械工业联合会: "《GB 50041-2008 锅炉房设计规范》", 1 June 2008, 中国计划出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202750A (en) * | 2015-08-31 | 2015-12-30 | 太仓英达锅炉设备有限公司 | Boiler device |
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| PB01 | Publication | ||
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Application publication date: 20121205 |