CN203258666U - Liquid drop recovery device of hanging type chimney - Google Patents
Liquid drop recovery device of hanging type chimney Download PDFInfo
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- CN203258666U CN203258666U CN 201320156070 CN201320156070U CN203258666U CN 203258666 U CN203258666 U CN 203258666U CN 201320156070 CN201320156070 CN 201320156070 CN 201320156070 U CN201320156070 U CN 201320156070U CN 203258666 U CN203258666 U CN 203258666U
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- chimney
- liquid collecting
- annular liquid
- collecting plate
- inner core
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Abstract
The utility model discloses a liquid drop recovery device of a hanging type chimney. The liquid drop recovery device comprises a grout tank (7) and a smoke entrance gap (63) formed in the upper end of a self-vertical inner cylinder (4) of the chimney. The liquid drop recovery device of the hanging type chimney is characterized by further comprising an annular liquid collecting board (62) and an expansion joint (8) which is horizontally arranged. One end of the liquid collecting board (62) is connected with the expansion joint (8), and the other end of the annular liquid collecting board (62) is connected with the upper end of the self-vertical inner cylinder (4) of the chimney. An annular liquid collecting groove (61) in the annular liquid collecting board (62) corresponds to the smoke entrance gap (63), an acid liquid discharging pipe (64) is connected to the annular liquid collecting board (62), and the lower end of the acid liquid discharging pipe (64) is communicated with the grout tank (7). The liquid drop recovery device can reduce the number of liquid drops carried by smoke and is simple in structure, high in efficiency, capable of saving energy and prolonging the service life of the expansion joint, and convenient to construct and overhaul.
Description
Technical field
The utility model relates to the coal-fired station's flue gas processing device in power industry, specifically a kind of drop retracting device of suspension type chimney.
Background technology
When the flue gas flow rate in chimney internal cylinder reaches certain speed, can carry the drop and the solid granulates that freeze-out in flue gas and move in the same way; When flue gas flow rate is low, drop and solid granulates will drop and can not carried by flue gas, and critical speed point wherein is called secondary and carries critical speed." EPRI-Electric Power Research Institute (EPRI) wet chimney design guide rule " according to the difference of chimney wall surface material, studied its secondary and carried critical speed, provided on this basis the advisory speed of different materials chimney.About the recovery of condensing water droplet in chimney, this guide rule has also provided basic treatment principle, but this guide rule has only provided principle qualitatively, there is no concrete engineering construction scheme, have with a certain distance from concrete application, and Some principles is unreasonable.Domestic newly-built Desulphurization for Coal-fired Power Plant technique generally adopts Wet Limestone/gypsum technique at present, and is not equipped with GGH (flue gas-flue gas heat-exchange unit), and the flue gas that enter chimney this moment is saturated flue gas, and the chimney of configuration claims conventional be " wet chimney ".The a large amount of outlet drops that exist of " the wet chimney " of domestic operation carry phenomenon, and namely the flue gas of chimney breast with drop, has caused environmental hazard to the chimney periphery, is to have increased contaminants associated discharging in essence; Secondly, flow to without corrosion-resistant chimney outer wall if be with corrosive drop to drop down, also affect the security of chimney; At last, the expansion joint of suspension type chimney internal cylinder is easily by the corrosive droplet erosion on chimney internal cylinder, thereby makes the service life of expansion joint shorter, need to improve.
Summary of the invention
The purpose of this utility model is to provide a kind of drop retracting device of suspension type chimney, and it can be collected the acid solution drop of suspension type chimney, and is energy-efficient, simple in structure, and construction and maintenance are convenient, and can extend the service life of expansion joint.
In order to achieve the above object, the utility model adopts following technical proposals: comprise slurry pool and the gas approach gap that is positioned at chimney self-support inner core upper end, it is characterized in that: also comprise annular liquid collecting plate and horizontally disposed expansion joint; Annular liquid collecting plate one end is connected with expansion joint, and the annular liquid collecting plate other end is connected with the upper end of chimney self-support inner core, and the interior annular collecting tank of annular liquid collecting plate is corresponding with the gas approach gap; Be connected with the acid solution discharge pipe on the annular liquid collecting plate, the lower end of acid solution discharge pipe is communicated with slurry pool.
In technique scheme, when expansion joint change into horizontally disposed after, reclaim chimney by the drop retracting device and hang drop on inner core, improved the collection efficiency of acid solution, and reduced flue gas and taken guttiferous quantity, it is simple in structure, energy-efficient; Secondly, the expansion joint inboard does not directly contact acid solution, can extend the service life of expansion joint; At last, expansion joint and drop retracting device are positioned at outside chimney internal cylinder, and construction and maintenance are convenient.
When velocity of flue gas carries critical speed lower than secondary, the drop that condenses mainly flows downward along chimney wall, in order effectively to reclaim the drop in chimney, be that the expansion joint place arranges annular liquid collecting plate above horizontal flue collector access port, the annular liquid collecting plate forms the acid solution collecting tank in the inboard of chimney internal cylinder, and the acid solution discharge pipe by the acid solution sump bottom will reclaim in the slurry pool that liquid is connected to wet desulfurization system and go.Said structure is the detailed construction of drop retracting device described in the utility model, and it is simple in structure, easily implements.
In technique scheme, the cross section of described annular liquid collecting plate is a kind of in " L-type ", " U-shaped ", " arc " or " V-type " or is the combination between them.The shape of cross section of annular liquid collecting plate can be aforesaid way, wherein, take the cross section of annular liquid collecting plate for " L-type " or " U-shaped " as the best.
In technique scheme, described acid solution discharge pipe is along chimney self-support inner tube wall circle distribution.In technique scheme, described acid solution discharge pipe distributes two to the six roots of sensation along chimney self-support inner tube wall even circumferential.Described acid solution discharge pipe distributes along chimney self-support inner tube wall even circumferential and can make the length of acid solution discharge pipe the shortest, can reduce flue gas etc. to the loss of acid solution discharge pipe.
In technique scheme, the material that described chimney hangs inner core (2), chimney self-support inner core (4) and/or annular liquid collecting plate (62) is a kind of in composite titanium steel plate, fiberglass, stainless steel or carbon steel.
To sum up, the utility model carries problem by the flue gas drop that the drop retracting device has solved chimney outlet; The acid solution collecting tank that the annular liquid collecting plate forms and acid solution discharge pipe all are positioned at outside inner core, and construction and maintenance are convenient; The expansion joint inboard does not directly contact acid solution, can increase the service life; Expansion joint is positioned at outside inner core, and construction and maintenance are convenient.
Description of drawings
Fig. 1 is the structural representation that contains suspension type chimney of the present utility model.
Fig. 2 is that the A-A of Fig. 1 cuts open schematic diagram.
Fig. 3 is structural representation of the present utility model.
In figure: 1. chimney urceolus, 2. chimney hangs inner core, 3. chimney internal cylinder hitch point, 4. chimney self-support inner core, 5. flue collector, 6. drop retracting device, 61. acid solution collecting tanks, 62. annular liquid collecting plates, the gap between 63. chimney hangs between inner core and chimney self-support inner core, 64. the acid solution discharge pipe, 65. expansion joints, 7. slurry pool.
The specific embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not consist of restriction to the utility model, only for example.Simultaneously by illustrating that advantage of the present utility model will become more clear and easily understand.
As shown in Figure 1 to Figure 3, the drop retracting device of suspension type chimney comprises slurry pool 7 and is positioned at the gas approach gap 63 of chimney self-support inner core 4 upper ends, it is characterized in that: also comprise annular liquid collecting plate 62 and horizontally disposed expansion joint 64; Annular liquid collecting plate 62 1 ends are connected with expansion joint 65, and annular liquid collecting plate 62 other ends are connected with the upper end of chimney self-support inner core 4, and the interior annular collecting tank 61 of annular liquid collecting plate 62 is corresponding with gas approach gap 63; Be connected with acid solution discharge pipe 64 on annular liquid collecting plate 62, the lower end of acid solution discharge pipe 64 is communicated with slurry pool 7.
Annular liquid collecting plate 62 forms acid solution collecting tank 61 in the inboard of chimney internal cylinder, the drop that forms on chimney internal cylinder flows into the acid solution collecting tank that annular liquid collecting plate 62 surrounds, then the slurry pool 7 of the acid solution discharge pipe 64 by annular liquid collecting plate 62 bottoms and acid solution discharge pipe 64 bottoms reclaims drop.
In practical work process, the suspension type chimney comprises that the chimney of upper and lower layout hangs inner core 2 and chimney self-support inner core 4, the chimney of upper and lower layout hangs inner core 2 and chimney self-support inner core 4 forms chimney internal cylinder, the suspension type chimney also comprises chimney urceolus 1, be positioned at the chimney internal cylinder hitch point 3 of chimney urceolus 1 and chimney internal cylinder upper end, connect the flue collector 5 of chimney urceolus 1 and chimney internal cylinder 4.
When velocity of flue gas carries critical speed lower than secondary, the drop that condenses mainly moves down along the chimney internal cylinder inboard, in order effectively to reclaim the drop in chimney, be that expansion joint 65 places arrange annular liquid collecting plate 62 above horizontal flue collector access port, annular liquid collecting plate 62 forms acid solution collecting tank 61 in the inboard of chimney internal cylinder, and the acid solution discharge pipe 64 by acid solution collecting tank 61 bottoms will reclaim in the slurry pool 7 that liquid is connected to wet desulfurization system and go.
The cross section of described annular liquid collecting plate 62 is a kind of in " L-type ", " U-shaped ", " arc " or " V-type " or is the combination between them.The shape of cross section of annular liquid collecting plate 62 can be aforesaid way, wherein, take the cross section of annular liquid collecting plate for " L-type " or " U-shaped " as the best.
Described acid solution discharge pipe 64 is along chimney self-support inner core 4 wall circle distribution.Described acid solution discharge pipe 64 distributes two to the six roots of sensation along chimney self-support inner core 4 wall even circumferentials.The material that described chimney hangs inner core (2), chimney self-support inner core 4 and/or annular liquid collecting plate 62 is a kind of in composite titanium steel plate, fiberglass, stainless steel or carbon steel.
Operation principle of the present utility model: after desulfurization, saturated wet flue gas is that gas-liquid two-phase flows, and contain the drop of partial desulfurization reducing agent slurries, the flue gas on absorption tower is turned and initial gross separation has been passed through at the reducing place at flue when flowing through flue, and the isolated drop of institute is collected through a discharge pipe.After flue gas entered chimney, vertically up through 0 ° of elbow in chimney bottom, under the effect of inertia force, through separate, through the deflector of chimney bottom collected again by isolated bulky grain drop for part bulky grain drop.The drop of fine particle continues up with flue gas, in the uphill process of fine particle drop with flue gas, flue gas is because the adiabatic expansion temperature descends on the one hand, and on the other hand because there is radiation loss in chimney, flue-gas temperature descends gradually along the chimney elevation.Because chimney wall in chimney same cross section is the minimum zone of temperature, main droplets agglomerate forms and collects at inner wall of stack and flows downward, the liquid film of inner wall of stack formation is simultaneously also caught the drop that carries in partial fume, this part drop hangs bottom inner core at chimney, be pooled to collecting tank 62 by the gap 63 that hangs between inner core and self-support inner core, then drain into slurry pool 7 by acid solution discharge pipe 64.
The purpose of setting up the drop retracting device at suspension type chimney internal cylinder expansion joint place is to improve the collection efficiency of acid solution, reduce flue gas and take guttiferous quantity, improves the operating condition in chimney.Because annular liquid collecting plate 62, acid solution collecting tank 61, acid solution discharge pipe 64, expansion joint 65 all are arranged at the chimney internal cylinder outside, easy access.Expansion joint 65 does not directly touch acid solution, the service life of having improved expansion joint.
Other unspecified part all belongs to prior art.
Claims (5)
1. the drop retracting device of suspension type chimney comprises slurry pool (7) and is positioned at the gas approach gap (63) of chimney self-support inner core (4) upper end, it is characterized in that: also comprise annular liquid collecting plate (62) and horizontally disposed expansion joint (64); Annular liquid collecting plate (62) one ends are connected with expansion joint (65), annular liquid collecting plate (62) other end is connected with the upper end of chimney self-support inner core (4), and the annular collecting tank (61) in annular liquid collecting plate (62) is corresponding with gas approach gap (63); Be connected with acid solution discharge pipe (64) on annular liquid collecting plate (62), the lower end of acid solution discharge pipe (64) is communicated with slurry pool (7).
2. the drop retracting device of suspension type chimney according to claim 1 is characterized in that: a kind of in " L-type ", " U-shaped ", " arc " or " V-type " of the cross section of described annular liquid collecting plate (62).
3. the drop retracting device of suspension type chimney according to claim 1, it is characterized in that: described acid solution discharge pipe (64) is along chimney self-support inner core (4) wall circle distribution.
4. the drop retracting device of suspension type chimney according to claim 3 is characterized in that: described acid solution discharge pipe (64) distributes two to the six roots of sensation along chimney self-support inner core (4) wall even circumferential.
5. the drop retracting device of the described suspension type chimney of any one claim according to claim 1 to 4 is characterized in that: the material that described chimney hangs inner core (2), chimney self-support inner core (4) and/or annular liquid collecting plate (62) is a kind of in composite titanium steel plate, fiberglass, stainless steel or carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156070 CN203258666U (en) | 2013-04-01 | 2013-04-01 | Liquid drop recovery device of hanging type chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156070 CN203258666U (en) | 2013-04-01 | 2013-04-01 | Liquid drop recovery device of hanging type chimney |
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| Publication Number | Publication Date |
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| CN203258666U true CN203258666U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320156070 Expired - Lifetime CN203258666U (en) | 2013-04-01 | 2013-04-01 | Liquid drop recovery device of hanging type chimney |
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| CN (1) | CN203258666U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474794A (en) * | 2014-10-14 | 2015-04-01 | 上海迪夫格环境科技有限公司 | Condensate liquid collection device at top end of wet chimney flue gas guide plate |
| CN105804482A (en) * | 2016-05-09 | 2016-07-27 | 江苏格普新材料有限公司 | Glass-fiber-reinforced-plastic chimney pipe |
| CN108443901A (en) * | 2018-05-31 | 2018-08-24 | 天津大学 | A kind of incineration of industry peril waste exhaust chimney top hydrophobic device |
-
2013
- 2013-04-01 CN CN 201320156070 patent/CN203258666U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474794A (en) * | 2014-10-14 | 2015-04-01 | 上海迪夫格环境科技有限公司 | Condensate liquid collection device at top end of wet chimney flue gas guide plate |
| CN104474794B (en) * | 2014-10-14 | 2016-08-17 | 上海迪夫格环境科技有限公司 | A kind of Wet chimney smoke deflector top condensed fluid collection device |
| CN105804482A (en) * | 2016-05-09 | 2016-07-27 | 江苏格普新材料有限公司 | Glass-fiber-reinforced-plastic chimney pipe |
| CN108443901A (en) * | 2018-05-31 | 2018-08-24 | 天津大学 | A kind of incineration of industry peril waste exhaust chimney top hydrophobic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTI Free format text: FORMER OWNER: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP COR Effective date: 20150128 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150128 Address after: 430071 Wuchang District, Hubei, South Central Road No. two, No. 12, No. Patentee after: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Address before: 430071 Power Engineering Company of Zhongnan Power Design Institute, 668 Democratic Road, Wuchang District, Hubei, Wuhan Patentee before: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING Group Corp. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Longtai Power Station Technology Co.,Ltd. Assignor: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Contract record no.: 2015420000154 Denomination of utility model: Liquid drop recovery device of hanging type chimney Granted publication date: 20131030 License type: Exclusive License Record date: 20150805 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |