CN105202555A - Potential energy pulse deashing device - Google Patents
Potential energy pulse deashing device Download PDFInfo
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- CN105202555A CN105202555A CN201510729926.9A CN201510729926A CN105202555A CN 105202555 A CN105202555 A CN 105202555A CN 201510729926 A CN201510729926 A CN 201510729926A CN 105202555 A CN105202555 A CN 105202555A
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- shot
- steel shot
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- energy pulse
- output tube
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Abstract
The invention discloses a potential energy pulse deashing device, comprising steel shot output pipes, a flap valve (5), a horizontal conveying pipeline (6), a steel shot recycling bin (7), a vertical conveying pipeline (8), a steel shot release bin (9) and a steel shot discharge header pipe (10), wherein the steel shot output pipes consist of N groups of vertical output pipes (1) and horizontal output pipes (3), a stop valve (2) is mounted between the vertical output pipes and the horizontal output pipes, and the steel shot output pipes are arranged between two rows of heat exchange pipes (4) adjacent to a heat exchange surface of a waste heat boiler; the steel shot recycling bin (7) is connected with the flap valve (5) by the horizontal conveying pipeline (6), and is connected with the steel shot release bin (9) by the vertical conveying pipeline (8); the steel shot release bin (9) is connected with the steel shot output pipes by the steel shot discharge header pipe (10). A physical contact type deashing mode is adopted, and deposited ash is cleared away under steel shot pulse shock by direct contact between steel shots with fine particle sizes and ash scale on the heat exchange surface, thus solving the problem of ash deposition on the complex heat exchange surface of the waste heat boiler.
Description
Technical field
The present invention relates to a kind of ash-clearing technology for waste heat boiler, especially a kind of dust stratification scavenge unit utilizing the waste heat boiler of physical contact formula purge mode.
Background technology
The Chinese government always payes attention to energy conservation, as far back as the beginning of the eighties in last century, has just formulated the policy of " exploitation and saving are laid equal stress on, and in the recent period saving are put prior ".The issue of especially 1996 " Chinese Policy of Technology For Energy Saving outline " is implemented, and to the power-saving technology progress of promotion China, makes outstanding achievements.In recent years, China strengthens energy-saving and emission-reduction dynamics further, and clearly eliminate the backward production facilities target, and emphasis promotes waste heat overbottom pressure and industrial by-product coal-gas recovering utilizing works.Waste heat boiler, as the key equipment of waste heat recovery, is played an important role in the popularization of heat recovery technology, and the ash-clearing technology of waste heat boiler directly has influence on the thermal efficiency and the heat recovery level of waste heat boiler.
From the service condition of current waste heat boiler, no matter waste heat boiler adopts light pipe or finned tube, ubiquity heat-transfer surface dust stratification is seriously difficult to the phenomenon removed, especially finned tube boiler is adopted, after dust stratification, heat transfer effect will deteriorate significantly, time serious, the stifled ash in boiler local directly affects safe operation of the boiler, and even therefore waste heat boiler is discarded by some manufacturing enterprises, and flue gas comes back to the situation of air cooling cooling.
Existing waste heat boiler almost adopts finned tube bar none, part collecting ash is very serious, iron and steel, waste heat boiler that is coloured, the industry such as cement, petrochemical industry are in operation and can form meltbility or hard dust stratification, extremely difficult removing, adopts steam soot blowing, detonation deashing, mechanical vibrator all cannot solve boiler heat exchange area ash problem.
In order to improve heat exchange efficiency, now, potential energy pulse dust cleaning technology and shot ash-clearing technology is adopted to become a kind of useful selection.And in current shot ash-clearing technology, the landing uniformity of shot is not well solved, often occur that a part of heat-transfer surface is very clean, and still there is the phenomenon of serious dust stratification in another part heat-transfer surface.
Summary of the invention
In order to address this problem, the present invention adopts a kind of potential energy pulse ash remover, utilize small particle diameter shot as medium, by the gravity of shot itself, by the top free-falling of boiler heat exchange face, by the physical contact of shot and heat exchange surface, while shot falls, heat exchanger surface dust stratification band is fallen, thus reach the object removing dust stratification.
In order to realize object of the present invention, following technical scheme is proposed:
A kind of potential energy pulse ash remover, described potential energy pulse ash remover comprises shot efferent duct, flap valve 5, horizontal output pipeline 6, shot recovery bin 7, vertical transport pipeline 8, shot release storehouse 9 and shot discharge header pipe 10, wherein,
Described shot efferent duct is made up of the vertical output tube 1 of N group and horizontal output tube 3, and vertical output tube 1 connects horizontal output tube 3, and stop valve 2 is housed between the two;
Described horizontal output tube 3 is arranged between two adjacent row's heat exchanger tubes 4 of residual heat boiler for exchanging heat face, has multiple shot delivery outlet 11 bottom it;
Described flap valve 5 is arranged on waste heat boiler ash bucket exit;
Described shot recovery bin 7 is connected with flap valve 5 by described horizontal conveying pipe 6, and connects described shot release storehouse 9 by vertical transport pipeline 8;
Described shot release storehouse 9 connects described shot efferent duct by shot discharge header pipe 10.
Scraper-type or spiral feeding device is all furnished with in described horizontal conveying pipe 6 with in described vertical transport pipeline 8.
Described shot recovery bin 7 top is furnished with shot and supplements mouth, for supplementing the shot taken away by flue dust at any time.
Described horizontal output tube 3 adopts in-line horizontal mode or chevrons.
Described flap valve 5 is at least arranged independently two-layer.
The diameter of described shot delivery outlet 11 is slightly larger than used shot diameter.
Potential energy pulse ash remover of the present invention have employed physical contact formula purge mode, contacted with the direct of heat-transfer surface black dirt by fine grain shot, under shot pulse shock, dust stratification is removed, to guarantee that boiler heating surface cleans, the dust stratification problem in waste heat boiler Complex Heat face can be solved well, reach the object improving boiler efficiency, prolonged boiler service life; The dust stratification that potential energy arteries and veins deashing device can be widely used in the waste heat boiler such as iron and steel, coloured, cement, petrochemical industry is removed.
Accompanying drawing explanation
Fig. 1 is potential energy pulse ash remover schematic diagram of the present invention;
Fig. 2 is horizontal output tube top view;
Fig. 3 a is in-line horizontal output tube side view;
Fig. 3 b is herringbone efferent duct side view.
In figure.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
As Fig. 1 shows, the present invention is a kind of potential energy pulse ash remover, comprises vertical output tube 1, horizontal output tube 3, flap valve 5, horizontal output pipeline 6, shot recovery bin 7, vertical transport pipeline 8, shot release storehouse 9 and shot discharge header pipe 10.
Vertical output tube 1 and horizontal output tube 3, by being welded to connect, are equipped with stop valve 2 between the two, for adjusting shot flow at any time as required.Horizontal output tube 3 is divided into N group, wherein illustrated 2 groups (31,32), often organize horizontal output tube 31 and 32 and be arranged in first row heat exchanger tube 41 and second row heat exchanger tube 42, second row heat exchanger tube 42 and the 3rd are arranged between heat exchanger tube 43, multiple shot delivery outlet 11 is had bottom horizontal output tube 3, guarantee that shot can drop between two row's heat exchanger tubes, see Fig. 2.Horizontal output tube 3 can adopt yi word pattern mode, sees Fig. 3 a, also can adopt chevrons, sees Fig. 3 b, can effectively prevent shot from stockpiling in pipe.Each described vertical output tube is equipped with stop valve.
Flap valve 5 is arranged on waste heat boiler ash bucket exit, at least arranges independently two-layer.Not during deashing, two-layer flap valve 5 is all in closed condition, during deashing, first open last layer flap valve 5, dust and shot are fallen lower one deck flap valve 5 from the ash bucket exit of waste heat boiler, close last layer flap valve 5, open lower one deck flap valve 5, dust and shot drop on horizontal conveying pipe 6, after screening, dust enters dust collection system (meaning not shown in the figures) after stove, and shot enters shot recovery bin 7 by horizontal conveying pipe 6.
Shot recovery bin 7 is connected with flap valve 5 by horizontal conveying pipe 6, is furnished with scraper-type or the rotating feeding device of horizontal helical in horizontal conveying pipe 6; Shot recovery bin 7 top is furnished with shot and supplements mouth, for supplementing the shot taken away by flue dust at any time.Shot recovery bin 7 is connected by vertical transport pipeline 8 with shot release storehouse 9, is furnished with scraper-type or vertical spin formula feeding device in vertical transport pipeline 8.
Below in conjunction with Fig. 1 and Fig. 2, further illustrate the step utilizing potential energy pulse ash remover of the present invention to carry out deashing for boiler heat exchange face:
1) stop valve 2 in the vertical output tube 1 on first group, the left side is opened, all the other stop valve 2 Close Alls.Shot falls from the shot delivery outlet 11 in first group of horizontal output tube 31, drop between first row boiler heat exchange pipe 41 and second row boiler heat exchange pipe 42, removed the superficial dust of first row boiler heat exchange pipe 41 and second row boiler heat exchange pipe 42 by physical contact.Horizontal conveying pipe 6 is entered by flap valve 5 after shot falls into boiler bottom, shot recovery bin 7 is transported to by the horizontal feeding device of the horizontal conveying pipe 6 inside ball that will fall, then by vertical transport pipeline 8, shot is transported to shot release storehouse 9, shot enters vertical output tube 1 through shot discharge header pipe 10 again, so far, first time deashing process is completed.
2) stop valve 2 in the vertical output tube 1 of second group is opened, all the other stop valve 2 Close Alls.Shot falls from the shot delivery outlet 11 in second group of horizontal output tube 32, drops between boiler second row heat exchanger tube 42 and the 3rd row's boiler heat exchange pipe 43, is removed the superficial dust of second row boiler heat exchange pipe 42 and the 3rd row 43 by physical contact.Horizontal conveying pipe 6 is entered by flap valve 5 after shot falls into boiler bottom, shot recovery bin 7 is transported to by the horizontal feeding device of the horizontal conveying pipe 6 inside ball that will fall, then by vertical transport pipeline 8, shot is transported to shot release storehouse 9, shot enters vertical output tube 1 through shot discharge header pipe 10 again, so far, second time deashing process is completed.
3) open successively the 3rd until N group vertical output tube 1 in stop valve 2, all the other stop valve 2 Close Alls.Repeat step 1, to shine the deashing process of hot side until complete whole boiler.
Because potential energy pulse ash remover of the present invention meets the requirement of the dispersed whereabouts of shot well, removing ash of boiler does not stay dead angle, reaches raising boiler efficiency, the object in prolonged boiler service life
Above-described specific embodiment; further detailed description has been carried out to object of the present invention, technical scheme and beneficial effect; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a potential energy pulse ash remover, it is characterized in that, described potential energy pulse ash remover comprises shot efferent duct, flap valve (5), horizontal output pipeline (6), shot recovery bin (7), vertical transport pipeline (8), shot release storehouse (9) and shot discharge header pipe (10), wherein
Described shot efferent duct is made up of the vertical output tube (1) of N group and horizontal output tube (3), and vertical output tube (1) connects horizontal output tube (3), and stop valve (2) is housed between the two;
Described horizontal output tube (3) is arranged between two adjacent rows' heat exchanger tube (4) of residual heat boiler for exchanging heat face, has multiple shot delivery outlet (11) bottom it.
2. potential energy pulse ash remover according to claim 1, is characterized in that, is all furnished with scraper-type or spiral feeding device in described horizontal conveying pipe (6) and in described vertical transport pipeline (8).
3. potential energy pulse ash remover according to claim 1, is characterized in that, described shot recovery bin (7) top is furnished with shot and supplements mouth, for supplementing the shot taken away by flue dust at any time.
4. potential energy pulse ash remover according to claim 1, is characterized in that, described horizontal output tube (3) adopts in-line horizontal mode or chevrons.
5. potential energy pulse ash remover according to claim 1, is characterized in that, the diameter of described shot delivery outlet (11) is slightly larger than used shot diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729926.9A CN105202555A (en) | 2015-11-02 | 2015-11-02 | Potential energy pulse deashing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729926.9A CN105202555A (en) | 2015-11-02 | 2015-11-02 | Potential energy pulse deashing device |
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| CN105202555A true CN105202555A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510729926.9A Pending CN105202555A (en) | 2015-11-02 | 2015-11-02 | Potential energy pulse deashing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737177A (en) * | 2016-03-22 | 2016-07-06 | 大唐贵州野马寨发电有限公司 | Automatic ash discharging device of ash conveying system |
| CN108561892A (en) * | 2018-01-15 | 2018-09-21 | 山东中移能节能环保科技股份有限公司 | A kind of waste heat boiler ash removal method and device |
| WO2020029046A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Shell-type waste heat boiler capable of online ash removal |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3291197A (en) * | 1962-06-13 | 1966-12-13 | Burmeister & Wains Mot Mask | Shot cleaning method for heat exchangers |
| CN1537665A (en) * | 2003-04-15 | 2004-10-20 | 沈继平 | Rotary pulse bag type dust collector |
| CN202056899U (en) * | 2011-01-26 | 2011-11-30 | 山东金晶科技股份有限公司 | Ash clearing device of waste heat boiler for glass furnace waste heat power generation system |
| CN103062782A (en) * | 2013-01-09 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Dust cleaning system applicable to heat recovery boiler with complex heating surface |
| CN203177189U (en) * | 2013-01-09 | 2013-09-04 | 北京世纪源博科技股份有限公司 | Shot-distributing or shot-blasting device of shot-dropping dust-cleaning system |
| CN103471119A (en) * | 2013-08-30 | 2013-12-25 | 江苏太湖锅炉股份有限公司 | Reciprocating ash removal structure for steel balls |
| CN205065751U (en) * | 2015-11-02 | 2016-03-02 | 北京德海通科技有限公司 | Potential energy pulse ash removal device |
-
2015
- 2015-11-02 CN CN201510729926.9A patent/CN105202555A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3291197A (en) * | 1962-06-13 | 1966-12-13 | Burmeister & Wains Mot Mask | Shot cleaning method for heat exchangers |
| CN1537665A (en) * | 2003-04-15 | 2004-10-20 | 沈继平 | Rotary pulse bag type dust collector |
| CN202056899U (en) * | 2011-01-26 | 2011-11-30 | 山东金晶科技股份有限公司 | Ash clearing device of waste heat boiler for glass furnace waste heat power generation system |
| CN103062782A (en) * | 2013-01-09 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Dust cleaning system applicable to heat recovery boiler with complex heating surface |
| CN203177189U (en) * | 2013-01-09 | 2013-09-04 | 北京世纪源博科技股份有限公司 | Shot-distributing or shot-blasting device of shot-dropping dust-cleaning system |
| CN103471119A (en) * | 2013-08-30 | 2013-12-25 | 江苏太湖锅炉股份有限公司 | Reciprocating ash removal structure for steel balls |
| CN205065751U (en) * | 2015-11-02 | 2016-03-02 | 北京德海通科技有限公司 | Potential energy pulse ash removal device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737177A (en) * | 2016-03-22 | 2016-07-06 | 大唐贵州野马寨发电有限公司 | Automatic ash discharging device of ash conveying system |
| CN108561892A (en) * | 2018-01-15 | 2018-09-21 | 山东中移能节能环保科技股份有限公司 | A kind of waste heat boiler ash removal method and device |
| CN108561892B (en) * | 2018-01-15 | 2024-04-02 | 山东中移能节能环保科技股份有限公司 | Ash removal method and device for waste heat boiler |
| WO2020029046A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Shell-type waste heat boiler capable of online ash removal |
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Application publication date: 20151230 |