CN104061584A - Heat accumulating type slewing air preheater - Google Patents
Heat accumulating type slewing air preheater Download PDFInfo
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- CN104061584A CN104061584A CN201410328740.8A CN201410328740A CN104061584A CN 104061584 A CN104061584 A CN 104061584A CN 201410328740 A CN201410328740 A CN 201410328740A CN 104061584 A CN104061584 A CN 104061584A
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- air chamber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention relates to a heat accumulating type slewing air preheater which comprises an upper air chamber, a lower air chamber and a middle slewing heat accumulating device. The slewing heat accumulating device comprises a slewing bearing, a speed reducer and a slewing body, wherein the slewing bearing is arranged at the top of the lower air chamber, the speed reducer is arranged on one side of the slewing bearing and drives the slewing bearing to rotate, and the slewing body is arranged on the slewing bearing and rotates along with the slewing bearing. A liquor condensate collection and neutralization system is arranged at the bottom of a cold smoke chamber of the lower air chamber and comprises a mixed precipitation chamber and a heavy metal processing chamber, wherein limestone alkaline particles are arranged in the mixed precipitation chamber, the heavy metal processing chamber is connected with a discharging pipe, and processed liquor condensate is discharged out through the discharging pipe. The slewing bearing drives the slewing body and a heat accumulating body to rotate to complete heat exchange between high-temperature smoke and cold air, pollutants such as acid liquid containing nitration and sulfide and produced by condensation of low-temperature smoke can be collected and neutralized through the liquor condensate collection and neutralization system, and therefore, air pollution caused by smoke discharged out of a heating furnace is reduced.
Description
Technical field
The present invention relates to air preheat equipment, refer in particular to a kind of rotation heat accumulating type air preheater of high Wen smoke pre-heating cold air that petrochemical industry is discharged for reclaiming combustion apparatus that is applicable to.
Background technology
Heating furnace is widely used combustion apparatus in oil, chemical industry, chemical fibre industry, produces high-temperature flue gas, medium in furnace tubing by combustion fuel oil or fuel gas.Due to the material such as sulphur, nitrogen containing in fuel, air, after burning, produce sour gas, in order to prevent that the sour gas in flue gas from causing corrosion to equipment, more than heating furnace exhaust gas temperature is controlled at dew point corrosion temperature, exhaust gas temperature is generally at 130 DEG C～200 DEG C, the thermal efficiency is usually less than 90%, and in flue gas, part physics sensible heat is wasted, the SO in flue gas
x, NO
xdeng pernicious gas, to atmosphere and environment.
The latent heat of vaporization that fuel combustion produces fails to be recovered utilization in the time that exhaust gas temperature is higher, has caused energy loss.In order fully to reclaim heat, in the time that exhaust gas temperature is reduced to dew-point temperature, the water vapor condensation in flue gas discharges latent heat, and the latent heat of vaporization in flue gas just can be recovered, and 10% high-low-position thermal discharge is poor just can be used effectively.In high-temperature oxidation process due to fuel combustion, the material such as N, C, S in air and fuel is oxidized, and these materials are combined with water, makes condensate liquid form acidic materials, to after acid condensate liquid neutralisation treatment, discharge, can reduce pollution to atmosphere and the formation of acid rain.
Existing air preheater comes with some shortcomings more, as switch type heat accumulating type condensation air preheater, comprise two or more regenerator, in regenerator, be filled with heat storage medium, flue-gas temperature drops to its sour dew point and discharges below, but accumulation of heat and the exothermic process of triple valve to single regenerator that adopt switch to reclaim smoke heat energy more, and handoff procedure can cause the fluctuation of combustion pressure, temperature.As rotary preheater, adopt revolution heat exchange that the high-temperature flue gas accumulation of heat of 1200 DEG C is cooled to 200 DEG C of following discharges, but all do not consider that exhaust gas temperature is reduced to the problem how dew point is processed the acid condensate liquid forming below, therefore in practical operation, it is discharged flue-gas temperature and still needs to be controlled at and more than dew point corrosion temperature spot just can avoid the impact of acid condensate liquid on device and environment, also the latent heat of vaporization in flue gas is not reclaimed simultaneously.As proposed in miscellaneous equipment that the acid condensate liquid forming after cryogenic condensation is neutralized by alkaline matter, follow condensate liquid and together discharge but heavy metal ion in condensate liquid is not processed, form secondary pollution.
Summary of the invention
The object of the invention is for the shortcoming existing in background technology and problem improvement and bring new ideas in addition, provide a kind of by heat storage continuous rotary in flue gas and air, constantly accumulation of heat and heat release are discharged after flue-gas temperature is reduced, simultaneously by the rotation heat accumulating type air preheater of discharging after the steam partial condensation in flue gas neutralisation treatment.
The present invention includes the top air chamber being formed by hot smoke chamber and hot air chamber, the bottom air chamber being formed by cold smoke air chamber and cold air chamber, and be arranged on the revolution regenerative apparatus between the air chamber of upper and lower part, wherein:
Revolution regenerative apparatus comprises the floating bearing that is arranged on air chamber top, bottom, the reductor that is arranged on floating bearing one side and drives floating bearing to rotate, and be arranged on the revolving body rotating on floating bearing and with floating bearing;
The cold smoke air chamber bottom of described bottom air chamber is provided with condensed fluid collection neutralising arrangement, this neutralising arrangement is made up of mixed precipitation chamber and heavy metal process chamber, wherein in mixed precipitation chamber, be provided with lime stone alkali grain, heavy metal process chamber is connected with delivery pipe, and condensate liquid after treatment is discharged through delivery pipe.
Advantage of the present invention and beneficial effect:
After heat in the high-temperature flue gas that the present invention discharges heating furnace in petrochemical industry device absorbs by heat storage, discharge with lower temperature, the heat storage simultaneously absorbing after heat will flow to burner after combustion air heating.The present invention utilizes the rotation of revolving body, and heat storage continuously absorbs the heat in fume side flue gas, flue-gas temperature is reduced to below dew-point temperature, the latent heat that recycle-water steam condensing discharges; Heat accumulator rotary after heated is to air side by air heat, and temperature is elevated to lower than 10 DEG C～20 DEG C of input flue-gas temperatures, is delivered to burner, and the thermal efficiency of heating furnace is brought up to more than 95%.By the neutralising arrangement arranging, the pollutants such as the Acidic Liquid containing itrated compound and sulfide that low-temperature flue gas condensation is formed are collected and carry out neutralisation treatment simultaneously, have reduced heating furnace and have discharged the pollution of flue gas to atmosphere.
The present invention is linked together bottom air chamber and revolving body by floating bearing, and floating bearing bearing capacity is large, precision is high, coefficient of friction is low, and revolving body running resistance is little, and motor drive current is steady, has reduced use power energy consumption.The present invention by pottery and carbofrax material as heat storage medium, there is thermal conductivity good, corrosion-and high-temp-resistant, long service life; Adopt the mode of continuous rotary to carry out accumulation of heat and heat release, there is no pressure oscillation; The acid water that cryogenic condensation forms is discharge after mixed precipitation neutralization and heavy metal processing are separated out, and can not cause secondary pollution, has also alleviated the corrosion of low-temperature flue gas to chimney; Realize clean fume emission, reduced pollution to atmosphere and the formation of acid rain.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is top view of the present invention.
Detailed description of the invention
As shown in Figure 1, 2, the present invention includes the top air chamber being formed by hot smoke chamber and hot air chamber, the bottom air chamber being formed by cold smoke air chamber and cold air chamber, and be arranged on the revolution regenerative apparatus between the air chamber of upper and lower part, wherein:
Revolution regenerative apparatus comprises the floating bearing 2 that is arranged on air chamber top, bottom, the reductor 9 that is arranged on floating bearing 2 one sides and drives floating bearing 2 to rotate, and be arranged on the revolving body 3 rotating on floating bearing 2 and with floating bearing 2;
The cold smoke air chamber bottom of described bottom air chamber is provided with condensed fluid collection neutralising arrangement 103, this neutralising arrangement is made up of mixed precipitation chamber 1031 and heavy metal process chamber 1032, wherein in mixed precipitation chamber 1031, be provided with lime stone alkali grain, condensate liquid after treatment is discharged through delivery pipe 104 from heavy metal process chamber 1032 overflows.
Described top air chamber of the present invention comprises the top cover 7 that is arranged on revolution regenerative apparatus top by bracing frame 5, on top cover 7, be provided with exit 701 on the air of heat outputting air, input access port 702 and manhole 703 on the flue gas of hot flue gas, and access port 702 corresponding two independent hot air chamber and the hot smoke chambers that arrange respectively on exit 701 and flue gas on air, the two independent hot air chamber that arrange and hot smoke chamber setting position are distinguished again cold air chamber and the cold smoke air chamber of corresponding bottom air chamber.The adjusting device 6 of described top cover 7 by outer setting can upper and lower adjustment be installed on bracing frame 5.Described bottom air chamber is installed on revolution regenerative apparatus below by the base 1 arranging, comprise independent cold air chamber and the cold smoke air chamber arranging, wherein cold air chamber inputs cold air by access port 101 under the air arranging, and cold smoke air chamber is discharged cold flue gas by exit 102 under the flue gas arranging.Described floating bearing 2 is fixed on base 1 top, and the arranged outside of floating bearing 2 is gear-like the power shaft toe joint with reductor 9.Described reductor 9 is arranged on a side of base 1, and reductor 9 is with floating bearing 2 for being provided with heat storage 4 in the revolving body 3 described in gear drive, and heat storage 4 is made by pottery and carbofrax material.Described revolving body 3 tops and bottom are provided with seal 8.
Specific embodiments of the invention:
As shown in Figure 1, 2, the present invention includes base 1, floating bearing 2, revolving body 3, heat storage 4, bracing frame 5, adjusting device 6, top cover 7, seal 8, reductor 9 and insulation material composition; On base 1, be provided with under air exit 102 under access port 101 and flue gas; Be provided with on air access port 702 and manhole 703 on exit 701, flue gas at top cover 7.
As shown in Figure 1, base 1 internal interval becomes two of air and flue gases independently interval, and cold air access port 101 from air is inputted, and discharge cold flue gas exit 102 from flue gas.In base 1 bottom, smoke chamber is provided with condensed fluid collection neutralising arrangement 103, and condensed fluid collection neutralising arrangement 103 is made up of mixed precipitation chamber 1031 and heavy metal process chamber 1032, and condensate liquid after treatment is discharged through delivery pipe 104.
As shown in Figure 1, floating bearing 2 is fixed on base 1, drives floating bearing 2 by reductor 9.Revolving body 3 is fixed on floating bearing 2, and drives revolving body 3 to rotate by floating bearing 2.Heat storage 4 is arranged in revolving body 3, is made by pottery and carbofrax material.Seal 8 is arranged on the two ends up and down of revolving body 3.
As shown in Figure 1, bracing frame 5 is arranged on around base 1.Adjusting device 6 is arranged on the height that regulates top cover 7 on bracing frame 5, and adjusting device 6 is six.Reductor 9 is arranged on base 1 one sides.
As shown in Figure 2, top cover 7 is arranged on revolving body 3, top cover 7 internal intervals become two of air and flue gases independently interval and interval corresponding with air and flue gas in base 1, and export hot-air exit 701 from air, and hot flue gas access port 702 from flue gas is inputted.The top of top cover 7 is provided with manhole 703.
The course of work of the present invention:
When work, high-temperature flue gas access port 702 from flue gas is inputted hot smoke chamber, and through heat storage 4 release heat, discharge low-temperature flue gas exit 102 from flue gas, and heat storage 4 is heated in this course.Cold air access port 101 from air is inputted cold air chamber, and through heat storage 4 and absorb the heat of heat storage 4, export high temperature air exit 701 from air, and heat storage 4 is cooled in this course.In heat transfer process, revolving body 3 drives revolution by reductor 9, continuously through flue gas, air section, constantly accumulation of heat heat release, continuous circulation.In heat transfer process, the acid condensate liquid that cold smoke air chamber forms enters mixed precipitation chamber 1031, by the lime stone alkali grain in mixed precipitation chamber 1031, pickling liquid is neutralized, cold neutral lime set after neutralization enters heavy metal process chamber 1032, absorbent charcoal material in heavy metal process chamber 1032 is separated out heavy mental treatment wherein, and condensate liquid after treatment is discharged through delivery pipe 104; The absorbent charcoal material of Adsorption of Heavy Metal Ions recycles and regularly changes after regeneration.Containing the condensate liquid of itrated compound and sulfide in neutralising arrangement and after, acidity reduces greatly, has reduced the corrosion that condensate liquid brings in preheater bottom deposition, has also alleviated the corrosion to flue, air-introduced machine and chimney simultaneously.
Embodiment of the present invention is only the description that the preferred embodiment of the present invention is carried out; not design of the present invention and scope are limited; do not departing under the prerequisite of design philosophy of the present invention; various modification and improvement that in this area, engineers and technicians make technical scheme of the present invention; all should fall into protection scope of the present invention; the technology contents of request protection of the present invention, has all been documented in claims.
Claims (8)
1. a rotation heat accumulating type air preheater, comprises the top air chamber being made up of hot smoke chamber and hot air chamber, the bottom air chamber being formed by cold smoke air chamber and cold air chamber, and be arranged on the revolution regenerative apparatus between the air chamber of upper and lower part, it is characterized in that:
Revolution regenerative apparatus comprises the floating bearing (2) that is arranged on air chamber top, bottom, the reductor (9) that is arranged on floating bearing (2) one sides and drives floating bearing (2) to rotate, and be arranged on floating bearing (2) revolving body (3) upper and that rotate with floating bearing (2);
The cold smoke air chamber bottom of described bottom air chamber is provided with condensed fluid collection neutralising arrangement (103), this neutralising arrangement is made up of mixed precipitation chamber (1031) and heavy metal process chamber (1032), wherein in mixed precipitation chamber (1031), be provided with lime stone alkali grain, heavy metal process chamber (1032) is connected with delivery pipe (104), and condensate liquid after treatment is discharged through delivery pipe (104).
2. rotation heat accumulating type air preheater according to claim 1, it is characterized in that described top air chamber comprises the top cover (7) that is arranged on revolution regenerative apparatus top by bracing frame (5), on top cover (7), be provided with exit (701) on the air of heat outputting air, input access port (702) and manhole (703) on the flue gas of hot flue gas, and access port (702) corresponding two independent hot air chamber and the hot smoke chambers that arrange respectively on exit on air (701) and flue gas, the two independent hot air chamber that arrange and hot smoke chamber setting position are distinguished again cold air chamber and the cold smoke air chamber of corresponding bottom air chamber.
3. rotation heat accumulating type air preheater according to claim 2, what it is characterized in that the adjusting device (6) of described top cover (7) by outer setting can upper and lower adjustment is installed on bracing frame (5).
4. rotation heat accumulating type air preheater according to claim 1, it is characterized in that described bottom air chamber is installed on revolution regenerative apparatus below by the base (1) arranging, comprise independent cold air chamber and the cold smoke air chamber arranging, wherein cold air chamber is by access port (101) input cold air under the air arranging, and cold smoke air chamber is discharged cold flue gas by exit (102) under the flue gas arranging.
5. rotation heat accumulating type air preheater according to claim 4, is characterized in that described floating bearing (2) is fixed on base (1) top, and the arranged outside of floating bearing (2) is gear-like the power shaft toe joint with reductor (9).
6. rotation heat accumulating type air preheater according to claim 4, is characterized in that described reductor (9) is arranged on a side of base (1), and reductor (9) is gear drive with floating bearing (2).
7. rotation heat accumulating type air preheater according to claim 1, is characterized in that being provided with heat storage (4) in described revolving body (3), and heat storage (4) is made by pottery and carbofrax material.
8. rotation heat accumulating type air preheater according to claim 1, is characterized in that described revolving body (3) top and bottom are provided with seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328740.8A CN104061584B (en) | 2014-07-11 | 2014-07-11 | A kind of rotation heat accumulating type air preheater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328740.8A CN104061584B (en) | 2014-07-11 | 2014-07-11 | A kind of rotation heat accumulating type air preheater |
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| Publication Number | Publication Date |
|---|---|
| CN104061584A true CN104061584A (en) | 2014-09-24 |
| CN104061584B CN104061584B (en) | 2016-02-24 |
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ID=51549428
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410328740.8A Active CN104061584B (en) | 2014-07-11 | 2014-07-11 | A kind of rotation heat accumulating type air preheater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439865A (en) * | 2016-11-21 | 2017-02-22 | 岳阳钟鼎热工电磁科技有限公司 | Continuous heat accumulating type VOC (Volatile Organic Compounds) organic waste gas incinerator |
| CN109737444A (en) * | 2019-03-19 | 2019-05-10 | 烟台龙源电力技术股份有限公司 | Rotary regenerative air preheater |
| CN110986076A (en) * | 2019-12-27 | 2020-04-10 | 岳阳恒盛石化科技有限公司 | Radial flow-back heat accumulation type air preheater |
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| JP2001082735A (en) * | 1999-09-09 | 2001-03-30 | Babcock Hitachi Kk | Air preheater |
| CN101761935A (en) * | 2009-10-21 | 2010-06-30 | 上海锅炉厂有限公司 | Rotary high-temperature air preheater |
| CN102080933A (en) * | 2009-10-21 | 2011-06-01 | 上海锅炉厂有限公司 | Rotary high-temperature air preheater |
| CN202253729U (en) * | 2011-09-29 | 2012-05-30 | 岳阳钟鼎热工电磁科技有限公司 | Continuous heat accumulation type preheater sealing device |
| CN202902327U (en) * | 2012-10-11 | 2013-04-24 | 中国科学院广州能源研究所 | Novel no-shaft inclined rotary heat storage device |
| CN202993870U (en) * | 2012-11-30 | 2013-06-12 | 苏州有色金属研究院有限公司 | Reversing-free high temperature heat exchanger |
| CN204063110U (en) * | 2014-07-11 | 2014-12-31 | 岳阳钟鼎热工电磁科技有限公司 | A kind of rotation heat accumulating type air preheater |
-
2014
- 2014-07-11 CN CN201410328740.8A patent/CN104061584B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001082735A (en) * | 1999-09-09 | 2001-03-30 | Babcock Hitachi Kk | Air preheater |
| CN101761935A (en) * | 2009-10-21 | 2010-06-30 | 上海锅炉厂有限公司 | Rotary high-temperature air preheater |
| CN102080933A (en) * | 2009-10-21 | 2011-06-01 | 上海锅炉厂有限公司 | Rotary high-temperature air preheater |
| CN202253729U (en) * | 2011-09-29 | 2012-05-30 | 岳阳钟鼎热工电磁科技有限公司 | Continuous heat accumulation type preheater sealing device |
| CN202902327U (en) * | 2012-10-11 | 2013-04-24 | 中国科学院广州能源研究所 | Novel no-shaft inclined rotary heat storage device |
| CN202993870U (en) * | 2012-11-30 | 2013-06-12 | 苏州有色金属研究院有限公司 | Reversing-free high temperature heat exchanger |
| CN204063110U (en) * | 2014-07-11 | 2014-12-31 | 岳阳钟鼎热工电磁科技有限公司 | A kind of rotation heat accumulating type air preheater |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439865A (en) * | 2016-11-21 | 2017-02-22 | 岳阳钟鼎热工电磁科技有限公司 | Continuous heat accumulating type VOC (Volatile Organic Compounds) organic waste gas incinerator |
| CN109737444A (en) * | 2019-03-19 | 2019-05-10 | 烟台龙源电力技术股份有限公司 | Rotary regenerative air preheater |
| CN110986076A (en) * | 2019-12-27 | 2020-04-10 | 岳阳恒盛石化科技有限公司 | Radial flow-back heat accumulation type air preheater |
| CN110986076B (en) * | 2019-12-27 | 2024-07-23 | 岳阳恒盛石化科技有限公司 | Radial flow back rotary heat accumulating type air preheater |
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| CN104061584B (en) | 2016-02-24 |
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Effective date of registration: 20170803 Address after: 414000 Hunan city of Yueyang province Chenglingji Industrial Zone Yongji Road Co-patentee after: Sinopec Corp. Patentee after: Yueyang Mapower Thermprocess & Electromagnetic Technology Co.,Ltd. Address before: 414000 Hunan city of Yueyang province Chenglingji Industrial Zone Yongji Road Patentee before: Yueyang Mapower Thermprocess & Electromagnetic Technology Co.,Ltd. |