CN203501196U - Single-canister chimney for preventing flue gas collision at gas duct inlet - Google Patents
Single-canister chimney for preventing flue gas collision at gas duct inlet Download PDFInfo
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- CN203501196U CN203501196U CN201320490573.8U CN201320490573U CN203501196U CN 203501196 U CN203501196 U CN 203501196U CN 201320490573 U CN201320490573 U CN 201320490573U CN 203501196 U CN203501196 U CN 203501196U
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- turning elbow
- flue
- chimney
- elbow
- arc surface
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Abstract
The utility model discloses a single-canister chimney for preventing flue gas collision at a gas duct inlet, and solves the problem of serious flue gas flowing down caused by flue gas positive pressing and collision of two ways of flue gas in a double-inlet single-canister chimney. The single-canister chimney for preventing flue gas collision at the gas duct inlet comprises a left turning elbow (3) arranged in a single-canister chimney left gas duct inlet (4), wherein the left end of the left turning elbow is connected with a left gas duct expanding pipe (2), the left turning elbow is arranged in a bending and turning manner in an upward and forward direction, and a left turning elbow bottom arc surface (12) and a left turning elbow rear arc surface (16) are arranged on the left turning elbow; a right turning elbow (8) is arranged in a single-canister chimney right gas duct inlet (9), the right end of the right turning elbow is connected with a right gas duct expanding pipe (7), the right turning elbow is arranged in a bending and turning manner in an upward and reward direction, and a right turning elbow bottom arc surface (13) and a right turning elbow front arc surface (17) are arranged on the right turning elbow. The single-canister chimney is particularly suitable for double-inlet single-canister chimneys in thermal power plants.
Description
Technical field
The present invention relates to a kind of chimney, two entrance single-drum chimneys that particularly a kind of thermal power plant is used.
Background technology
After large and medium-sized thermal power plant furnace, facility arranges that rule is neat, land used saving, be convenient to management, two stove flue entrances of general single-drum chimney are that horizontal symmetrical is arranged, when coal-burning boiler desulfurization normally moves, induced-draught fan is introduced chimney by most of flue gas, and flue gas is with upwards discharge of the horn mouth on flue.In order to reach the requirement of environment protection emission, most of thermal power plant has all adopted Wet Limestone Desulfurization technique after stove.Chimney gas approach absolute altitude is higher, conventionally many more than 30 meters, at the high level of flue entrance, establishes dust stratification platform and brick baffle difficulty is also uneconomical.Because the clean flue gas flue outlet flow velocity of desulfuration absorbing tower is high, cigarette temperature is low, high humidity, often contains large quantity of moisture in flue gas, if while sharing two equal oeprations at full load of boiler of a single-drum chimney, in single-drum chimney, the malleation scope of flue gas can increase.Through experiment test, show: 180 meters of conventional thermal power plant height and above chimney, in flue gas to 2/3 when height in desulfurization fore funnel, just may occur malleation; And wet-method desulfurized fume, when chimney 1/3-1/4 height, just occurs malleation, exist flue gas malleation apart from the nearer problem of flue entrance; In addition, due to the phenomenon that horizontally disposed two flue entrances exist two strands of flue gases to clash, add the effect of flue gas malleation, flue gas is dropped to chimney bottom, and emerge from access door, had a strong impact on chimney environment around.
Summary of the invention
The invention provides a kind of single-drum chimney that prevents flue entrance flue gas head-on collision, the flue gas that produced by flue gas malleation and two bursts of cigarette head-on collisions that has solved that two entrance single-drum chimneys exist drops and has had a strong impact on the problem of chimney surrounding environment.
The present invention solves above technical problem by the following technical programs:
A kind of single-drum chimney that prevents the head-on collision of flue entrance flue gas, comprise the left flue entrance of single-drum chimney and the right flue entrance of single-drum chimney that horizontal symmetrical arranges, left-external side at the left flue entrance of single-drum chimney is provided with left flue support, on left flue support, be provided with the left flue tube and the left flue enlarged tube that link together, right outside side at the right flue entrance of single-drum chimney is provided with right flue support, on right flue support, be provided with the right flue tube and the right flue enlarged tube that link together, in the left flue entrance of single-drum chimney, be provided with left turning elbow, the left end of left turning elbow is connected with left flue enlarged tube, left turning elbow is that direction upwards and forward crooked break-in in edge arranges, on left turning elbow, be provided with at the bottom of left turning elbow arc surface after arc surface and left turning elbow, in the right flue entrance of single-drum chimney, be provided with right turning elbow, the right-hand member of right turning elbow is connected with right flue enlarged tube, right turning elbow is to arrange along the crooked break-in of direction upwards and backward, is provided with at the bottom of right turning elbow arc surface before arc surface and right turning elbow on right turning elbow, after left turning elbow, the outer tangent plane of arc surface overlaps with the outer tangent plane of arc surface before right turning elbow, the top of left turning elbow with the left circular arc that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface at the bottom of right turning elbow, the top of right turning elbow with the right circular arc that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface at the bottom of left turning elbow.
Lower end at the barrel of single-drum chimney is provided with inspection manhole.
The present invention respectively increases a turning elbow at two horizontal access places of two entrance single-drum chimneys, two symmetrical floss holes are misplaced completely, under without brick baffle condition, when two stoves are moved simultaneously, two flue gas discharged to for dislocation oblique upper, avoided the adverse effect of mutual head-on collision, eliminated chimney bottom and produced the reason of flue gas, and made two strands of flue gases have the mutual spiralling trend that raises.Simple structure of the present invention, makes easy to usely, and the space environment of chimney bottom is very significantly improved, and facilitates especially operations staff to check and clears up the reaction dregs of fume gas condensation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention is at the structural representation of overlooking in direction.
The specific embodiment
A kind of single-drum chimney that prevents the head-on collision of flue entrance flue gas, comprise the left flue entrance 4 of single-drum chimney and the right flue entrance 8 of single-drum chimney that horizontal symmetrical arranges, left-external side at the left flue entrance 4 of single-drum chimney is provided with left flue support 5, on left flue support 5, be provided with the left flue tube 1 and the left flue enlarged tube 2 that link together, right outside side at the right flue entrance 9 of single-drum chimney is provided with right flue support 10, on right flue support 10, be provided with the right flue tube 6 and the right flue enlarged tube 7 that link together, in the left flue entrance 4 of single-drum chimney, be provided with left turning elbow 3, the left end of left turning elbow 3 is connected with left flue enlarged tube 2, left turning elbow 3 is that direction upwards and forward crooked break-in in edge arranges, on left turning elbow 3, be provided with at the bottom of left turning elbow arc surface 16 after arc surface 12 and left turning elbow, in the right flue entrance 9 of single-drum chimney, be provided with right turning elbow 8, the right-hand member of right turning elbow 8 is connected with right flue enlarged tube 7, right turning elbow 8 be to arrange along the crooked break-in of direction upwards and backward, on right turning elbow 8, be provided with at the bottom of right turning elbow arc surface 17 before arc surface 13 and right turning elbow, after left turning elbow, the outer tangent plane of arc surface 16 overlaps with the outer tangent plane of arc surface 17 before right turning elbow, the top of left turning elbow with the left circular arc 14 that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface 13 at the bottom of right turning elbow, the top of right turning elbow with the right circular arc 15 that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface 12 at the bottom of left turning elbow.
Lower end at the barrel of single-drum chimney is provided with inspection manhole 11.
The present invention respectively increases a turning elbow at two horizontal access places of two entrance single-drum chimneys, the left turning elbow 3 of the left entry of two smoke inlets on symmetrically arranged single-drum chimney wall is also bent upwards prone simultaneously, the right turning elbow 8 of right entry is also bent upwards recurvate simultaneously, after left turning elbow, the central angle of arc surface 16 equates to be α with the central angle of arc surface 17 before right turning elbow, make two enter mouth on horizontal plane completely dislocation open, one of them enters flue gas in mouth and can not collide another and enter in mouth, under without brick baffle condition, when two stoves are moved simultaneously, two flue gas discharged to for dislocation oblique upper, avoided the adverse effect of mutual head-on collision, the top of left turning elbow with the left circular arc 14 that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface 13 at the bottom of right turning elbow, the top of right turning elbow with the right circular arc 15 that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface 12 at the bottom of left turning elbow, at the bottom of right turning elbow, the central angle of arc surface 13 equates to be β with the central angle of arc surface 12 at the bottom of left turning elbow, make two strands of flue gases have the mutual spiralling trend that raises, contribute to plume rise.
Claims (2)
1. a single-drum chimney that prevents flue entrance flue gas head-on collision, comprise the left flue entrance of single-drum chimney (4) and the right flue entrance of single-drum chimney (8) that horizontal symmetrical arranges, left-external side at the left flue entrance of single-drum chimney (4) is provided with left flue support (5), on left flue support (5), be provided with the left flue tube (1) and the left flue enlarged tube (2) that link together, right outside side at the right flue entrance of single-drum chimney (9) is provided with right flue support (10), on right flue support (10), be provided with the right flue tube (6) and the right flue enlarged tube (7) that link together, it is characterized in that, in the left flue entrance of single-drum chimney (4), be provided with left turning elbow (3), the left end of left turning elbow (3) is connected with left flue enlarged tube (2), left turning elbow (3) is that direction upwards and forward crooked break-in in edge arranges, on left turning elbow (3), be provided with arc surface (16) after arc surface at the bottom of left turning elbow (12) and left turning elbow, in the right flue entrance of single-drum chimney (9), be provided with right turning elbow (8), the right-hand member of right turning elbow (8) is connected with right flue enlarged tube (7), right turning elbow (8) is to arrange along the crooked break-in of direction upwards and backward, is provided with arc surface (17) before arc surface at the bottom of right turning elbow (13) and right turning elbow on right turning elbow (8), the outer tangent plane of arc surface after left turning elbow (16) overlaps with the outer tangent plane of arc surface (17) before right turning elbow, the top of left turning elbow with the left circular arc (14) that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface (13) at the bottom of right turning elbow, the top of right turning elbow with the right circular arc (15) that is connected of the barrel of single-drum chimney in the outer tangent plane of arc surface (12) at the bottom of left turning elbow.
2. a kind of single-drum chimney that prevents flue entrance flue gas head-on collision according to claim 1, is characterized in that, in the lower end of the barrel of single-drum chimney, is provided with inspection manhole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490573.8U CN203501196U (en) | 2013-08-12 | 2013-08-12 | Single-canister chimney for preventing flue gas collision at gas duct inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490573.8U CN203501196U (en) | 2013-08-12 | 2013-08-12 | Single-canister chimney for preventing flue gas collision at gas duct inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203501196U true CN203501196U (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320490573.8U Withdrawn - After Issue CN203501196U (en) | 2013-08-12 | 2013-08-12 | Single-canister chimney for preventing flue gas collision at gas duct inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203501196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398390A (en) * | 2013-08-12 | 2013-11-20 | 中国能源建设集团山西省电力勘测设计院 | Single-drum chimney preventing flue inlet smoke from colliding |
-
2013
- 2013-08-12 CN CN201320490573.8U patent/CN203501196U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398390A (en) * | 2013-08-12 | 2013-11-20 | 中国能源建设集团山西省电力勘测设计院 | Single-drum chimney preventing flue inlet smoke from colliding |
| CN103398390B (en) * | 2013-08-12 | 2015-06-17 | 中国能源建设集团山西省电力勘测设计院 | Single-drum chimney preventing flue inlet smoke from colliding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20150617 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |