CN101476835A - Heat accumulation type trans-critical flue gas waste heat recovery device - Google Patents
Heat accumulation type trans-critical flue gas waste heat recovery device Download PDFInfo
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- CN101476835A CN101476835A CNA2009100283349A CN200910028334A CN101476835A CN 101476835 A CN101476835 A CN 101476835A CN A2009100283349 A CNA2009100283349 A CN A2009100283349A CN 200910028334 A CN200910028334 A CN 200910028334A CN 101476835 A CN101476835 A CN 101476835A
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- heat
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- flue gas
- inner barrel
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The invention relates to a heat accumulating type trans-critical flue gas waste heat recovery device, which is characterized in that the recovery device comprises an outer cylinder body, an inner cylinder body, a liquid collection cone, a gas distribution core, rotating blades, and a heat accumulator, wherein the upper end of the outer cylinder body is provided with a flue gas outlet and an air inlet, and the outer cylinder body is sleeved at the lower end of the inner cylinder body; the lower end of the outer cylinder body is connected with the liquid collection cone; the upper end of the inner cylinder is provided with a flue gas inlet and an air outlet, the lower end of the inner cylinder body is provided with a heat accumulator support, and the heat accumulator is placed on the heat accumulator support in the inner cylinder body; and the lower end of the heat accumulator support in the inner cylinder body is provided with the gas distribution core, and the rotating blades are arranged between the inner cylinder body and the gas distribution core. The recovery device has the advantages that the recovery device can recover trans-critical waste heat of flue gas and heat of evaporation latent heat, save a large quantity of energy sources, and reduce the emission of acid gas due to the fact that the acid gas in the flue gas after waste heat recovery can saturate to precipitate at a dew point.
Description
One, technical field
The present invention relates to a kind of industrial smoke and stride critical waste heat recovery equipment, especially relate to the utilization that a kind of petroleum refining and chemical industry, Coal Chemical Industry technical process heating furnace or reactor tail gas waste heat are striden critical low-temperature heat quantity.Belong to petroleum refining and chemical industry, Coal Chemical Industry process field of energy-saving technology.Also can be applicable to fields such as pottery, metallurgy, building materials, electric power.
Two, background technology
In petroleum refining and chemical industry, coal chemical technology, can cause the serious dew point corrosion of equipment such as FCC regenerator, heating furnace convection section, furnace wall, boiler air preheater, pipeline caecum when flue gas is lower than dew point, this is owing to nitrogen, element sulphur in the fuel generate NOx, SO when burning
2, SO
3, when critical-temperature that flue-gas temperature is lower than, a large amount of steam of the product in the flue gas can dewfall, NOx, SO in addition
2, SO
3Serious water imbibition is arranged, will form the acid mist dewdrop, cause flue gas to flow through the dew point corrosion of position and its underpart, dew point corrosion belongs to electrochemical corrosion, and corrosion rate is fast, destructive strong, can cause equipment intensity to lose efficacy, cause serious consequence, or shorten the equipment cycle of operation, and device is in order to reduce operating cost, the claimed apparatus long-term operation.So the exhaust temperature of flue gas in service must strictness be higher than critical-temperature.For avoiding the appearance of dew point corrosion, flue-gas temperature can be added certain surplus on dew point in operation, and general exhaust gas temperature is higher than 170 ℃, that have even be higher than 250 ℃, like this, just there are a large amount of waste heats to fall, cause waste heat waste, thermal pollution and sour gas to pollute with fume emission.At present, also there is not truly can reclaim the device of the following temperature fume afterheat of flue gas dew point.
Three, summary of the invention
At above-mentioned shortcoming, the object of the present invention is to provide a kind of dew point is arranged but when not causing corrosion recyclable flue gas stride critical heat accumulation type trans-critical flue gas waste-heat recoverer to the following fume afterheat of dew point.
Technology contents of the present invention is, a kind of heat accumulation type trans-critical flue gas waste-heat recoverer, and it comprises outer cylinder body, inner barrel, liquid collection cone, distribution of gas core, vane sheet and heat storage; Be provided with exhanst gas outlet and air intlet at the outer cylinder body upper end, outer cylinder body is sleeved on the lower end of inner barrel; The lower end of outer cylinder body connects the liquid collection cone, is connected and installed with discharging tube on the liquid collection cone; Upper end at inner barrel is provided with gas approach and air outlet slit, and the lower end in inner barrel is equipped with the heat storage support, and heat storage is placed on the interior heat storage support of inner barrel; Heat storage support lower end in inner barrel is equipped with the distribution of gas core, for improving gas, the liquid separating effect of heat accumulation type trans-critical flue gas waste-heat recoverer, the vane sheet is installed between outer cylinder body and inner barrel.
In above-mentioned heat accumulation type trans-critical flue gas waste-heat recoverer,, be provided with fixed support in the heat storage upper end for avoiding the abnormal movement of heat storage.
In above-mentioned heat accumulation type trans-critical flue gas waste-heat recoverer, heat storage is preferably ceramic heat storage body.
The course of work of the present invention is, gas approach and exhanst gas outlet open that simultaneously air intlet and air outlet slit are closed when accumulation of heat, flue gas enters inner barrel by gas approach, when flowing through heat storage with the heat transferred heat storage, it is saturated that flue-gas temperature is reduced to dew point, gives heat storage when flue gas continues to transmit heat, and flue-gas temperature is reduced to below the dew point, contain the flue gas supersaturation of a large amount of combustion product-nitrogen, steam, sour gas and a small amount of other gases, flue gas and liquid that condensing thus formation is saturated; Saturated flue gas and the liquid vane sheet between distribution of gas core and inner barrel and distribution of gas core carries out rotational flow separation becomes gas, liquid two-way, liquid influent collection cone after flowing out inner barrel wherein, the flue gas that flows out inner barrel is when the vane sheet of flowing through between outer cylinder body and the inner barrel, become gas, liquid two-way by rotational flow separation once more, liquid influent collection cone wherein, flue gas is flowed out by exhanst gas outlet; After the heat storage accumulation of heat, air intlet and air outlet slit are opened, gas approach and exhanst gas outlet are closed simultaneously, air enters in the outer cylinder body by air intlet, enter inner barrel by the inner barrel lower end again, through contacting with heat storage, heat storage is with the heat transferred air, air after the heating is flowed out by air outlet slit again, finishes an accumulation of heat and heating process thus; After the fluid accumulation in the liquid collection cone arrives certain liquid level, discharge by discharging tube.
The advantage that the present invention is compared with prior art had is:
1, the present invention can reclaim flue gas and stride critical waste heat and latent heat of vaporization heat, and the energy savings amount is big.
2, by saturated the separating out of meeting under dew point of acidic gas in flue gas after the waste heat recovery of the present invention, reduced the discharging of sour gas.
3, flue gas by waste heat recovery of the present invention after, reduced thermal pollution, can reduce chimney height, saved steel and reduced cost.
4, the present invention manufactures and designs easily, and mechanism's simple operations is convenient.
Four, description of drawings
Fig. 1 is a structural representation of the present invention.
Five, the specific embodiment
As shown in Figure 1, a kind of heat accumulation type trans-critical flue gas waste-heat recoverer, it comprises outer cylinder body 1, inner barrel 2, liquid collection cone 3, distribution of gas core 4, vane sheet 5 and ceramic heat storage body 6; Be provided with exhanst gas outlet 1.1 and air intlet 1.2 at outer cylinder body 1 upper end, outer cylinder body 1 is sleeved on the lower end of inner barrel 2; Between outer cylinder body 1 and inner barrel 2, vane sheet 5 is installed; The lower end of outer cylinder body 1 connects liquid collection cone 3; Liquid collection cone 3 links to each other with discharging tube 7, and valve 8 is housed on discharging tube 7; Upper end at inner barrel 2 is provided with gas approach 2.1 and air outlet slit 2.2, and the lower end in inner barrel 2 is equipped with heat storage support 2.3, and ceramic heat storage body 6 is placed on the heat storage support 2.3 in the inner barrel 2; Be provided with fixed support 2.4 in ceramic heat storage body 6 upper ends; Heat storage support 2.3 lower ends in inner barrel 2 are equipped with distribution of gas core 4, between inner barrel 2 and distribution of gas core 4 vane sheet 5 are installed.
The present invention to the process of flue gas accumulation of heat is, with the valve on the blow-off pipe 78, air intlet 1.2 and air outlet slit 2.2 are closed, simultaneously gas approach 2.1 and exhanst gas outlet 2.1 are opened, flue gas enters in the inner barrel 2 by gas approach 2.1, contact with ceramic heat storage body 6 through descending, flue gas is with heat transferred ceramic heat storage body 6, and reach below the critical point temperature, form vapour, the liquid two-phase, saturated two phase flow carries out rotational flow separation through the vane sheet 5 between distribution of gas core 4 and inner barrel 2 and the distribution of gas core 4 and becomes gas, the liquid two-way, wherein liquid flows out back influent collection cone 3 from inner barrel 2, after flue gas flows out from inner barrel 2 again the vane sheet between outer cylinder body 1 and inner barrel 25 carry out the secondary rotational flow separation and become gas, the liquid two-way, liquid influent collection cone 3 wherein, flue gas is flowed out by exhanst gas outlet 1.1.
Heating process to air is, after ceramic heat storage body 6 accumulation of heats, valve 8 on the blow-off pipe 7 is closed, air intlet 1.2 and air outlet slit 2.2 are opened, simultaneously gas approach 2.1 and exhanst gas outlet 2.1 are closed, air is entered in the outer cylinder body 1 by air intlet 1.2, enters inner barrel 2 by inner barrel 1 lower end again, carries out exchange heat through up and ceramic heat storage body 6, ceramic heat storage body 6 is with the heat transferred air, and the air after being heated is flowed out by air outlet slit 2.2 again.
Fluid accumulation in the liquid collection cone 3 is discharged by opening valve 8 after certain liquid level.
Claims (4)
1, a kind of heat accumulation type trans-critical flue gas waste-heat recoverer is characterized in that it comprises outer cylinder body (1), inner barrel (2), liquid collection cone (3), distribution of gas core (4), vane sheet (5) and heat storage (6); Be provided with exhanst gas outlet (1.1) and air intlet (1.2) at outer cylinder body (1) upper end, outer cylinder body (1) is sleeved on the lower end of inner barrel (2); The lower end of outer cylinder body (1) connects liquid collection cone (3); Upper end at inner barrel (2) is provided with gas approach (2.1) and air outlet slit (2.2), and the lower end in inner barrel (2) is equipped with heat storage support (2.3), and heat storage (6) is placed on the interior heat storage support (2.3) of inner barrel (2); Heat storage support (2.3) lower end in inner barrel (2) is equipped with distribution of gas core (4), between inner barrel (2) and distribution of gas core (4) vane sheet (5) is installed.
2, a kind of heat accumulation type trans-critical flue gas waste-heat recoverer according to claim 1 is characterized by between outer cylinder body (1) and inner barrel (2) vane sheet (5) is installed, and is provided with fixed support (2.4) in heat storage (6) upper end.
3, a kind of heat accumulation type trans-critical flue gas waste-heat recoverer according to claim 1 and 2, it is characterized by heat storage (6) is ceramic heat storage body.
4, a kind of heat accumulation type trans-critical flue gas waste-heat recoverer according to claim 1 is characterized by liquid collection cone (3) and links to each other with discharging tube (7), and valve (8) is housed on discharging tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100283349A CN101476835B (en) | 2009-01-21 | 2009-01-21 | Heat accumulation type trans-critical flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100283349A CN101476835B (en) | 2009-01-21 | 2009-01-21 | Heat accumulation type trans-critical flue gas waste heat recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101476835A true CN101476835A (en) | 2009-07-08 |
| CN101476835B CN101476835B (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100283349A Expired - Fee Related CN101476835B (en) | 2009-01-21 | 2009-01-21 | Heat accumulation type trans-critical flue gas waste heat recovery device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853151A (en) * | 2012-08-24 | 2013-01-02 | 扬州高立达科技产业有限公司 | Check drain valve of heat accumulator |
| CN104479755A (en) * | 2014-11-26 | 2015-04-01 | 新奥科技发展有限公司 | Fluidized bed gasification furnace, catalytic coal gasification system and gasifying process |
| CN110939559A (en) * | 2019-11-08 | 2020-03-31 | 陕西航天动力高科技股份有限公司 | Diaphragm pump buffer system |
-
2009
- 2009-01-21 CN CN2009100283349A patent/CN101476835B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853151A (en) * | 2012-08-24 | 2013-01-02 | 扬州高立达科技产业有限公司 | Check drain valve of heat accumulator |
| CN104479755A (en) * | 2014-11-26 | 2015-04-01 | 新奥科技发展有限公司 | Fluidized bed gasification furnace, catalytic coal gasification system and gasifying process |
| CN104479755B (en) * | 2014-11-26 | 2017-02-22 | 新奥科技发展有限公司 | Fluidized bed gasification furnace, catalytic coal gasification system and gasifying process |
| CN110939559A (en) * | 2019-11-08 | 2020-03-31 | 陕西航天动力高科技股份有限公司 | Diaphragm pump buffer system |
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| Publication number | Publication date |
|---|---|
| CN101476835B (en) | 2010-06-16 |
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Assignee: Jiangyin Petroleum Chemical Industry Apparatus Co., Ltd. Assignor: Jiangsu Yanxin Technology Co., Ltd. Contract record no.: 2011320000213 Denomination of invention: Heat accumulation type trans-critical flue gas waste heat recovery device Granted publication date: 20100616 License type: Exclusive License Open date: 20090708 Record date: 20110310 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20180121 |