CN203240597U - Suspension type chimney comprising horizontal expansion joints - Google Patents
Suspension type chimney comprising horizontal expansion joints Download PDFInfo
- Publication number
- CN203240597U CN203240597U CN 201320159319 CN201320159319U CN203240597U CN 203240597 U CN203240597 U CN 203240597U CN 201320159319 CN201320159319 CN 201320159319 CN 201320159319 U CN201320159319 U CN 201320159319U CN 203240597 U CN203240597 U CN 203240597U
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- Prior art keywords
- chimney
- inner core
- liquid collecting
- collecting plate
- expansion joint
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Abstract
The utility model discloses a suspension type chimney comprising horizontal expansion joints. The suspension type chimney comprises a chimney suspension inner cylinder (2), a chimney erecting inner cylinder (4) and a size pool (7), wherein a flue gas inlet clearance (63) is arranged between the lower end of the chimney suspension inner cylinder (2) and the upper end of the chimney erecting inner cylinder (4). The suspension type chimney is characterized in that the lower end of the chimney suspension inner cylinder (2) is provided with a plurality of horizontally distributed expansion joints (8), a liquid drop recovery device (6) is arranged between the upper end of the chimney erecting inner cylinder (4) and the expansion joints (8), the liquid drop recovery device (6) comprises a ring-shaped liquid collecting plate (62) and an acid liquid discharge pipe (64) connected with the ring-shaped liquid collecting plate (62), one end of the ring-shaped liquid collecting plate (62) is connected with the expansion joints (8), the other end of the ring-shaped liquid collecting plate (62) is connected with the upper end of the chimney erecting inner cylinder (4), the lower end of the acid liquid discharge pipe (64) is communicated with the size pool (7), and a ring-shaped liquid collecting groove (61) in the ring-shaped liquid collecting plate (62) corresponds to the flue gas inlet clearance (63). The suspension type chimney has the advantages of simple structure, high efficiency, energy saving, prolonged service life of the expansion joints and convenience in construction and maintenance.
Description
Technical field
The utility model relates to the coal-fired station's flue gas processing device in the power industry, specifically a kind of suspension type chimney that contains horizontal expansion joint.
Background technology
When the flue gas flow rate in the chimney internal cylinder reaches certain speed, can carry the drop and the solid granulates that freeze-out in the 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 the chimney, this guide rule has also provided basic treatment principle, but this guide rule has only provided qualitatively principle, does not have 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 has caused environmental hazard with drop 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 the 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 provides a kind of suspension type chimney that contains horizontal expansion joint, and it is energy-efficient, and is simple in structure, and construction and maintenance are convenient, and can prolong the service life of expansion joint.
In order to achieve the above object, the utility model adopts following technical proposals: the suspension type chimney that contains horizontal expansion joint, comprise that chimney hangs inner core, chimney self-support inner core and slurry pool, be provided with the gas approach gap between the lower end of described chimney suspension inner core and the upper end of chimney self-support inner core, it is characterized in that: the lower end that described chimney hangs inner core is provided with some horizontally disposed expansion joints, is provided with the drop retracting device between the upper end of described chimney self-support inner core and the expansion joint; Described drop retracting device comprises annular liquid collecting plate and the acid solution discharge pipe that is connected with annular liquid collecting plate, annular liquid collecting plate one end is connected with expansion joint, the annular liquid collecting plate other end is connected with the upper end of chimney self-support inner core, and the lower end of acid solution discharge pipe is communicated with described slurry pool; Annular collecting tank in the annular liquid collecting plate is corresponding with the gas approach gap.
In technique scheme, when expansion joint that chimney hangs inner core change into horizontally disposed after, reclaim chimney by the drop retracting device and hang drop on the 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 prolong the service life of expansion joint; At last, expansion joint and drop retracting device are positioned at the chimney internal cylinder outside, and construction and maintenance are convenient.
In technique scheme, when velocity of flue gas is lower than secondary and carries critical speed, the drop that condenses mainly flows downward along chimney wall, in order effectively to reclaim the drop in the 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 structure 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 in twos 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, chimney self-support inner core and annular liquid collecting plate is a kind of in composite titanium steel plate, fiberglass, stainless steel or the 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 the inner core outside, 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 the inner core outside, and construction and maintenance are convenient.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is the A-A schematic diagram of Fig. 1
Fig. 3 is the local enlarged diagram of drop retracting device of the present utility model
Among the 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. acid solution discharge pipe, 7. slurry pool, 8. expansion joint.
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 understanding.
As shown in Figure 1 to Figure 3, the suspension type chimney that contains horizontal expansion joint, comprise that chimney hangs inner core 2, chimney self-support inner core 4 and slurry pool 7, be provided with gas approach gap 63 between the lower end of described chimney suspension inner core 2 and the upper end of chimney self-support inner core 4, it is characterized in that: the lower end that described chimney hangs inner core 2 is provided with some horizontally disposed expansion joints 8, is provided with drop retracting device 6 between the upper end of described chimney self-support inner core 4 and the expansion joint 8; Described drop retracting device 6 comprises annular liquid collecting plate 62 and the acid solution discharge pipe 64 that is connected with annular liquid collecting plate 62, annular liquid collecting plate 62 1 ends are connected with expansion joint 8, annular liquid collecting plate 62 other ends are connected with the upper end of chimney self-support inner core 4, and the lower end of acid solution discharge pipe 64 is communicated with described slurry pool 7; Annular collecting tank 61 in the annular liquid collecting plate 62 is corresponding with gas approach gap 63.
In the practical work process, 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, is positioned at the chimney internal cylinder hitch point 3 of chimney urceolus 1 and chimney internal cylinder upper end, connects the flue collector 5 of chimney internal cylinder 4 and chimney urceolus 1.
In the practical work process, annular liquid collecting plate 62 forms acid solution collecting tank 61 in the inboard of chimney internal cylinder, the drop that forms on the chimney internal cylinder flows into the acid solution collecting tank that annular liquid collecting plate 62 surrounds, and by the acid solution discharge pipe 64 of annular liquid collecting plate 62 bottoms and the slurry pool 7 of acid solution discharge pipe 64 bottoms drop is reclaimed again.
When velocity of flue gas is lower than secondary and carries critical speed, the drop that condenses is mainly dirty along chimney wall, in order effectively to reclaim the drop in the chimney, be that expansion joint 8 goes out to 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 in twos 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 annular liquid collecting plate 62 is a kind of in composite titanium steel plate, fiberglass, stainless steel or the carbon steel.
Operation principle of the present utility model: saturated wet flue gas is that gas-liquid two-phase flows after the desulfurization, and contain the drop of partial desulfurization reducing agent slurries, the flue gas on absorption tower has passed through initial gross separation in flue turning and reducing place when flowing through flue, 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 there is radiation loss in the adiabatic expansion drop in temperature owing to chimney on the other hand on the one hand, and flue-gas temperature descends gradually along the chimney elevation.Because the chimney wall is the minimum zone of temperature in the same cross section of chimney, main droplets agglomerate forms and compiles at inner wall of stack and flows downward, the liquid film of simultaneously inner wall of stack formation is also caught the drop that carries in the partial fume, this part drop hangs the inner core bottom at chimney, be pooled to collecting tank 62 by the slit 63 that hangs between inner core and self-support inner core, drain into slurry pool 7 by acid solution discharge pipe 64 again.
The purpose of setting up the drop retracting device at suspension type chimney internal cylinder expansion joint place is that collection efficiency, the reduction flue gas of raising acid solution taken guttiferous quantity, improves the operating condition in the chimney.Because acid solution collecting tank 61, annular liquid collecting plate 62, gas approach gap 63, expansion joint 8, acid solution discharge pipe 64 all are arranged at the chimney internal cylinder outside, easy access.Expansion joint 8 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 suspension type chimney that contains horizontal expansion joint, comprise that chimney hangs inner core (2), chimney self-support inner core (4) and slurry pool (7), be provided with gas approach gap (63) between the lower end of described chimney suspension inner core (2) and the upper end of chimney self-support inner core (4), it is characterized in that: the lower end that described chimney hangs inner core (2) is provided with some horizontally disposed expansion joints (8), is provided with drop retracting device (6) between the upper end of described chimney self-support inner core (4) and the expansion joint (8); Described drop retracting device (6) comprises annular liquid collecting plate (62) and the acid solution discharge pipe (64) that is connected with annular liquid collecting plate (62), annular liquid collecting plate (62) one ends are connected with expansion joint (8), annular liquid collecting plate (62) other end is connected with the upper end of chimney self-support inner core (4), and the lower end of acid solution discharge pipe (64) is communicated with described slurry pool (7); Annular collecting tank (61) in the annular liquid collecting plate (62) is corresponding with gas approach gap (63).
2. the suspension type chimney that contains horizontal expansion joint according to claim 1 is characterized in that: the cross section of annular liquid collecting plate (62) is for a kind of in " L-type ", " U-shaped ", " arc " or " V-type " or be the in twos combination between them.
3. the suspension type chimney that contains horizontal expansion joint 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 suspension type chimney that contains horizontal expansion joint 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 described suspension type chimney that contains horizontal expansion joint of each claim in 4 according to claim 1 is characterized in that: the material that described chimney hangs inner core (2), chimney self-support inner core (4) and annular collecting tank (61) is a kind of in composite titanium steel plate, fiberglass, stainless steel or the carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320159319 CN203240597U (en) | 2013-04-01 | 2013-04-01 | Suspension type chimney comprising horizontal expansion joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320159319 CN203240597U (en) | 2013-04-01 | 2013-04-01 | Suspension type chimney comprising horizontal expansion joints |
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| Publication Number | Publication Date |
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| CN203240597U true CN203240597U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320159319 Expired - Lifetime CN203240597U (en) | 2013-04-01 | 2013-04-01 | Suspension type chimney comprising horizontal expansion joints |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112856465A (en) * | 2020-12-30 | 2021-05-28 | 上海迪夫格环境科技有限公司 | Liquid collection flow guide assembly and device |
-
2013
- 2013-04-01 CN CN 201320159319 patent/CN203240597U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112856465A (en) * | 2020-12-30 | 2021-05-28 | 上海迪夫格环境科技有限公司 | Liquid collection flow guide assembly and device |
| CN112856465B (en) * | 2020-12-30 | 2023-04-28 | 上海迪夫格环境科技有限公司 | Liquid collecting and guiding assembly and 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: 20150129 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150129 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: Suspension type chimney comprising horizontal expansion joints Granted publication date: 20131016 License type: Exclusive License Record date: 20150805 |
|
| 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: 20131016 |