CN103104926A - Compound soot blower system for low-temperature flue gas waste heat recovery system - Google Patents
Compound soot blower system for low-temperature flue gas waste heat recovery system Download PDFInfo
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- CN103104926A CN103104926A CN2013100677154A CN201310067715A CN103104926A CN 103104926 A CN103104926 A CN 103104926A CN 2013100677154 A CN2013100677154 A CN 2013100677154A CN 201310067715 A CN201310067715 A CN 201310067715A CN 103104926 A CN103104926 A CN 103104926A
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Abstract
The invention relates to a compound soot blower system for a low-temperature flue gas waste heat recovery system. The compound soot blower system comprises a flue gas waste heat recovery device, wherein an acoustic-wave soot blowing system is arranged at the inlet of the flue gas waste heat recovery device, and a mechanically-vibrating soot removing system is arranged at the outlet of the flue gas waste heat recovery device. According to the invention, the acoustic-wave soot blowing system and the mechanically-vibrating soot removing system are mutually matched, so that the advantage of comprehensive soot blowing of an acoustic-wave soot blower is given a full play, and the advantages of a mechanically-vibrating soot removing device, such as low power consumption and high compact soot deposit removing capacity, are reflected; the soot deposit of a pipe bundle positioned on a heated surface is effectively removed under the action of the compound soot blower system disclosed by the invention, and the heat exchange coefficient is greatly enhanced, so that the efficiency of a waste heat recovery device is increased.
Description
Technical field
The present invention relates to a kind of for the compound soot blower system on the low-temperature flue gas waste heat recovery system, be particularly related to the compound soot blower system that high-strength acoustic wave ash ejector combines with mechanical vibrator, can solve low-temperature flue gas waste heat and reclaim the serious problem of heat exchanger dust stratification, and can solve low-temperature flue gas restored acid dew point corrosion problem, belong to field of energy-saving technology
Background technology
Current, flue gas loss is the main factor of all kinds of boilers, kiln heat loss, and along with the raising of awareness of saving energy and rising steadily of energy prices, taking full advantage of fume afterheat becomes the important channel of improving the boiler generatine set heat efficiency, realizing the used heat utilization.But in prior art, common waste-heat recovery device exists usually that dust stratification is serious, the cold end corrosion problem, particularly after waste-heat recovery device is arranged on deduster or dust content in flue gas when many, get the dust stratification amount on wall very large, when depending merely on a certain soot-blowing mode ash disposal, effect is very not obvious.Too much dust stratification not only causes the air-introduced machine load to increase the weight of, and the heat exchanger heat exchange efficiency is descended, and has affected the recovery of waste heat, but also has caused serious cold end corrosion, when serious, affects the normal operation of steam generator system, and energy-saving effect reduces greatly.
Summary of the invention
Problem for above-mentioned residual neat recovering system existence, the object of the invention is to overcome the deficiency that existing low-temperature flue gas waste heat reclaims heat exchanger, provide a kind of for the compound soot blower system on the low-temperature flue gas waste heat recovery system, be to have the soot blower system that meets that sonic soot blowing combines with mechanical ashing, can be used for the ash disposal of flue gas waste heat recovery apparatus under the high dirt environment of low temperature.
The present invention is achieved by the following technical solutions:
A kind ofly comprise flue gas waste heat recovery apparatus for the compound soot blower system on the low-temperature flue gas waste heat recovery system, be provided with sound wave soot blowing system in the porch of flue gas waste heat recovery apparatus, be provided with the mechanical rapping cleaning dust system in the exit of flue gas waste heat recovery apparatus.
Described sound wave soot blowing system comprises the compressed air preparation system, and the compressed air preparation system is connected with sound wave generating device by the pipeline that sets gradually compressed air strainer valve, stop valve, pneumatic control valve, and sound wave generating device connects the sound wave amplifying device.
Described ripple amplifying device is arranged on the flue internal protecting wall of flue gas waste heat recovery apparatus.Be provided with the acoustic wave ash ejector switch board between described pneumatic control valve and sound wave generating device.Can realize the automatic control to sonic generator.
Described mechanical rapping cleaning dust system comprises variable-frequency motor, variable-frequency motor is connected with rotating shaft by decelerator, transmission mechanism, rotating shaft is provided with a plurality of beaters, but the direction that beater waves is provided with the drive link of rapping, drive link is connected with the vibration connecting plate by inner vibrating rod, vibrates the in succession panel-pipe of heating surface of flue gas waste heat recovery apparatus of connecting plate.
Described variable-frequency motor bottom is provided with vibration dust-cleaning motor bearing seat, is provided with the rotating shaft support framework below rotating shaft.
Described sound wave soot blowing system is connected with the welding of flue gas waste heat recovery apparatus shell or flange.
The acoustic wave ash ejector switch board is to realize the operation of compressed air preparation facilities and sonic generator and to stop controlling.
In described sound wave soot blowing system, the junction of compressed air preparation system and pipeline is provided with check-valves and strainer valve, pipeline with the sonic generator junction by the moving valve of electricity (gas), the moving valve of electricity (gas) is connected the automatic control that can realize sound wave generating device with the acoustic wave ash ejector switch board.
In described sound wave soot blowing system, can connect several branch roads on pipe-line system, the quantity of branch road is according to the concrete condition calculative determination that blows ash, and each branch road and pipe-line system junction are provided with stop valve.
Beater is arranged in rotating shaft by certain angle, guarantees beater rapping drive link according to a certain order, and then to reach be the panel-pipe of heating surface vibration, removes the purpose of dust stratification.
In described mechanical rapping cleaning dust system, control system can be adjusted the frequency of variable-frequency motor as the case may be, be the vibration frequency of heating surface remain on 1～6 time/get in scope.
High-strength sound wave soot blowing system and mechanical rapping cleaning dust system are as two parts of low-temperature flue gas waste heat retracting device system, and be both separate, and separately control system, installation site are arranged; Mutually replenish again, the closely knit dust stratification that mechanical vibrator can be difficult to sonic soot blowing to remove and the dust stratification of heat exchanger tube lee face are removed.Both cooperatively interact, and have both brought into play acoustic wave ash ejector and have blown comprehensively advantage of ash, embodied again the power consumption of mechanical rapping cleaning dust device few, remove the strong advantage of closely knit dust stratification ability.Under the effect of this compound soot blower system, the dust stratification of heated surface bundle has obtained effective removing, and the coefficient of heat transfer greatly improves, and effectively raises the efficient of waste-heat recovery device.
Description of drawings
Fig. 1 is compound soot blower system scheme of installation of the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the system schematic of sound wave soot blowing system.
Fig. 4 is the mechanical rapping cleaning dust system schematic;
Fig. 5 be in Fig. 4 A-A to view;
Wherein, 1, sound wave soot blowing system; 2, flue gas waste heat recovery apparatus; 3, mechanical rapping cleaning dust system; 4, compressed air preparation system; 5, compressed air strainer valve; 6, stop valve; 7, pneumatic (electronic) control valve; 8, sound wave generating device; 9, sound wave amplifying device; 10, furnace wall; 11, acoustic wave ash ejector switch board; 12, vibration dust-cleaning motor bearing seat; 13, variable-frequency motor; 14, decelerator; 15, transmission mechanism; 16, rotating shaft support framework; 17, rotating shaft; 18, beater; 19, drive link; 20, sealing device; 21, inner vibrating rod; 22, vibration connecting plate.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
A kind of for the compound soot blower system on the low-temperature flue gas waste heat recovery system, comprise flue gas waste heat recovery apparatus 2, be provided with sound wave soot blowing system 1 in the porch of flue gas waste heat recovery apparatus 2, be provided with mechanical rapping cleaning dust system 3 in the exit of flue gas waste heat recovery apparatus 2.
Sound wave soot blowing system adopts intermittently and blows ash, has intensity high, and the characteristics of broad covered area can be blown down the flue dust of waste-heat recovery device inlet tube row and the sound wave area of coverage; The mechanical rapping cleaning dust system layout gives the mechanical oscillation of panel-pipe of heating surface in the waste-heat recovery device exit by rapping apparatus, reach the deashing purpose of removing the zone that heating surface tube end exhausting part dust stratification and acoustic wave ash ejector can not cover.
Sound wave soot blowing system 1 comprises compressed air preparation system 4, and compressed air preparation system 4 is connected with sound wave generating device 8 by the pipeline that sets gradually compressed air strainer valve 5, stop valve 6, pneumatic control valve 7, and sound wave generating device 8 connects sound wave amplifying device 9.Sound wave amplifying device 9 is arranged on the flue internal protecting wall 10 of flue gas waste heat recovery apparatus 2.Be provided with acoustic wave ash ejector switch board 11 between described pneumatic control valve 7 and sound wave generating device 8.Can realize the automatic control to sound wave generating device 8.
The compressed air that is come by the compressed air preparation system during operation arrives sound wave generating device by compressed air strainer valve, stop valve, pneumatic control valve, be the high strength sound wave by the sound wave generating device power conversion that compressed air is entrained, after high strong sound wave amplifies through the sound wave amplifying device, be released in the front flue of waste-heat recovery device, active force by sound wave makes grey particle and air molecule produce vibration, destroy and stop grey particle in the heat exchange surface combination, make it to be in the suspension fluidized state, so that flue gas or gravity are taken away it, complete the grey process of blowing.The ash-removal effect of the cycle of operation machine vision ash removal equipment for flapping of sound wave soot blowing system is determined.
Described mechanical rapping cleaning dust system comprises variable-frequency motor 13, variable-frequency motor 13 is connected with rotating shaft 17 by decelerator 14, transmission mechanism 15, rotating shaft 17 is provided with a plurality of beaters 18, but the direction that beater 18 waves is provided with the drive link 19 of rapping, drive link 19 is connected with vibration connecting plate 22 by inner vibrating rod 21, vibrates the in succession panel-pipe of heating surface of flue gas waste heat recovery apparatus 2 of connecting plate 22.
During operation, variable-frequency motor drives the rotating shaft rotation, makes beater rapping drive link successively, and drive link passes to inner vibrating rod with the vibration of beater, and inner vibrating rod makes the panel-pipe of heating surface vibration by the vibration connecting plate, reaches the purpose of ash disposal.Average rotation 1～6 circle per minute of rotating shaft makes heating surface rapping per minute just can obtain good dedusting effect 1～6 time.
Described acoustic wave ash ejector switch board can pass through the control to gas (electricity) brake control valve, and the DCS system is arrived in the control signal teletransmission, can realize the Long-distance Control to sound wave soot blowing system.The control of while vibration dust-cleaning system variable-frequency motor also can be located in the sound wave controlled cabinet and realize teletransmission, reaches the collaborative of whole system.
Claims (6)
1. compound soot blower system that is used on the low-temperature flue gas waste heat recovery system, comprise flue gas waste heat recovery apparatus, it is characterized in that, be provided with sound wave soot blowing system in the porch of flue gas waste heat recovery apparatus, be provided with the mechanical rapping cleaning dust system in the exit of flue gas waste heat recovery apparatus.
2. according to claim 1 a kind of for the compound soot blower system on the low-temperature flue gas waste heat recovery system, it is characterized in that, described sound wave soot blowing system comprises the compressed air preparation system, the compressed air preparation system is connected with sound wave generating device by the pipeline that sets gradually compressed air strainer valve, stop valve, pneumatic control valve, and sound wave generating device connects the sound wave amplifying device.
3. according to claim 2 a kind ofly it is characterized in that for the compound soot blower system on the low-temperature flue gas waste heat recovery system, described ripple amplifying device is arranged on the flue internal protecting wall of flue gas waste heat recovery apparatus.
4. according to claim 2 a kind ofly it is characterized in that for the compound soot blower system on the low-temperature flue gas waste heat recovery system, be provided with the acoustic wave ash ejector switch board between described pneumatic control valve and sound wave generating device.
5. according to claim 1 a kind of for the compound soot blower system on the low-temperature flue gas waste heat recovery system, it is characterized in that, described mechanical rapping cleaning dust system comprises variable-frequency motor, variable-frequency motor is connected with rotating shaft by decelerator, transmission mechanism, rotating shaft is provided with a plurality of beaters, but the direction that beater waves is provided with the drive link of rapping, and drive link is connected with the vibration connecting plate by inner vibrating rod, vibrates the in succession panel-pipe of heating surface of flue gas waste heat recovery apparatus of connecting plate.
6. according to claim 5 a kind ofly it is characterized in that for the compound soot blower system on the low-temperature flue gas waste heat recovery system, described variable-frequency motor bottom is provided with vibration dust-cleaning motor bearing seat, is provided with the rotating shaft support framework below rotating shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310067715.4A CN103104926B (en) | 2013-03-04 | 2013-03-04 | A kind of compound soot blower system in low-temperature flue gas waste heat recovery system |
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| CN201310067715.4A CN103104926B (en) | 2013-03-04 | 2013-03-04 | A kind of compound soot blower system in low-temperature flue gas waste heat recovery system |
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| CN103104926B CN103104926B (en) | 2015-11-18 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089291A (en) * | 2014-07-25 | 2014-10-08 | 邓雪明 | Gas-liquid mixed soot blowing device |
| CN105864807A (en) * | 2016-04-27 | 2016-08-17 | 无锡锡能锅炉有限公司 | Ash removal device for boiler |
| CN105987392A (en) * | 2015-03-04 | 2016-10-05 | 蒋振发 | Intelligent energy-saving sound wave ash blowing device |
| CN107120668A (en) * | 2017-05-03 | 2017-09-01 | 北京垣鸿锐科技有限公司 | Diaphragm and gas energy double control soot blower for boiler flue |
| CN108152080A (en) * | 2018-01-04 | 2018-06-12 | 华能国际电力股份有限公司上海石洞口第电厂 | Automatic anti-blocking device for instrument sampling tube of air flue measuring equipment |
| CN108302958A (en) * | 2017-12-29 | 2018-07-20 | 佛山市天顺科技有限公司 | A kind of flue gas waste heat recovery apparatus |
| CN113701178A (en) * | 2021-07-23 | 2021-11-26 | 湖州南太湖环保能源有限公司 | Steam soot blowing system of boiler flue |
| CN118376005A (en) * | 2024-06-21 | 2024-07-23 | 青岛骏鹏石化设备制造有限公司 | Condensation integrated micro-pressure phase-change boiler |
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| CN203131845U (en) * | 2013-03-04 | 2013-08-14 | 山东山大华特环保工程有限公司 | Compound soot blower system for low-temperature flue gas waste heat recovery system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089291A (en) * | 2014-07-25 | 2014-10-08 | 邓雪明 | Gas-liquid mixed soot blowing device |
| CN104089291B (en) * | 2014-07-25 | 2016-10-05 | 邓雪明 | A kind of gas-liquid mixed soot blower |
| CN105987392A (en) * | 2015-03-04 | 2016-10-05 | 蒋振发 | Intelligent energy-saving sound wave ash blowing device |
| CN105864807A (en) * | 2016-04-27 | 2016-08-17 | 无锡锡能锅炉有限公司 | Ash removal device for boiler |
| CN107120668A (en) * | 2017-05-03 | 2017-09-01 | 北京垣鸿锐科技有限公司 | Diaphragm and gas energy double control soot blower for boiler flue |
| CN108302958A (en) * | 2017-12-29 | 2018-07-20 | 佛山市天顺科技有限公司 | A kind of flue gas waste heat recovery apparatus |
| CN108152080A (en) * | 2018-01-04 | 2018-06-12 | 华能国际电力股份有限公司上海石洞口第电厂 | Automatic anti-blocking device for instrument sampling tube of air flue measuring equipment |
| CN113701178A (en) * | 2021-07-23 | 2021-11-26 | 湖州南太湖环保能源有限公司 | Steam soot blowing system of boiler flue |
| CN113701178B (en) * | 2021-07-23 | 2024-02-23 | 湖州南太湖环保能源有限公司 | Steam soot blowing system of boiler flue |
| CN118376005A (en) * | 2024-06-21 | 2024-07-23 | 青岛骏鹏石化设备制造有限公司 | Condensation integrated micro-pressure phase-change boiler |
| CN118376005B (en) * | 2024-06-21 | 2024-08-27 | 青岛骏鹏石化设备制造有限公司 | Condensation integrated micro-pressure phase-change boiler |
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| CN103104926B (en) | 2015-11-18 |
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Address after: 250101 Huate building, Shanda Science Park, Yingxiu Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Huate Environmental Protection Technology Co.,Ltd. Address before: 250101 Huate building, Shanda Science Park, Yingxiu Road, high tech Zone, Jinan City, Shandong Province Patentee before: Shandong Shanda Huate Environmental Protection Technology Co.,Ltd. |
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