CN103398390A - Single-drum chimney preventing flue inlet smoke from colliding - Google Patents
Single-drum chimney preventing flue inlet smoke from colliding Download PDFInfo
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- CN103398390A CN103398390A CN2013103495016A CN201310349501A CN103398390A CN 103398390 A CN103398390 A CN 103398390A CN 2013103495016 A CN2013103495016 A CN 2013103495016A CN 201310349501 A CN201310349501 A CN 201310349501A CN 103398390 A CN103398390 A CN 103398390A
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Abstract
The invention discloses a single-drum chimney preventing flue inlet smoke from colliding. The single-drum chimney solves the problem that according to a dual-inlet single-drum chimney, smoke generated by the positive pressure of the smoke and the collision of two pieces of the smoke seriously flows down. The single-drum chimney is characterized in that a left-turning bend (3) is arranged in a single-drum chimney flue inlet (4), the left end of the left-turning bend is connected with a left flue expanding pipe (2), the left-turning bend is arranged in the bending and turning mode in the upward and forward directions, a left-turning bend bottom circular arc face (12) and a left-turning bend rear circular arc face (16) are arranged on the left-turning bend, a right-turning bend (8) is arranged in a single-drum chimney right flue inlet (9), the right end of the right-turning bend is connected with a right flue expanding pipe (7), the right-turning bend is arranged in the bending and turning mode in the upward and backward directions, and a right-turning bend bottom circular arc face (13) and a right-turning bend front circular arc face (17) are arranged on the right-turning bend. The single-drum chimney preventing the flue inlet smoke from colliding is particularly suitable for being used in the dual-inlet single-drum chimney in a power station.
Description
Technical field
The present invention relates to a kind of chimney, particularly two entrance single-drum chimneys of a kind of thermal power plant use.
Background technology
After large and medium-sized thermal power plant furnace, facility arranges that rule is neat, the land used saving, be convenient to management, two stove flue entrances of general single-drum chimney are that horizontal symmetrical is arranged, when the coal-burning boiler desulfurization normally moves, induced-draught fan is introduced chimney by most of flue gas, and flue gas is with upwards discharging 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, and is usually many more than 30 meters, at the high level of flue entrance, establishes the dust stratification platform and the brick baffle difficulty is also uneconomical.Because the clean flue gas flue outlet flow velocity of desulfuration absorbing tower is high, the cigarette temperature is low, high humidity, in flue gas, often contains large quantity of moisture, 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 the desulfurization fore funnel, just malleation may occur; And wet-method desulfurized fume, when chimney 1/3-1/4 height, malleation just occurs, exists the flue gas malleation apart from the nearer problem of flue entrance; In addition, due to horizontally disposed two flue entrances, there is the phenomenon of two bursts of flue gas head-on collisions, 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 on every side.
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 edge makes progress and the crooked break-in of direction forward 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 be along upwards and the crooked break-in of direction backward arrange, on right turning elbow, be provided with at the bottom of right turning elbow arc surface before arc surface and right turning elbow, after left turning elbow, the outer tangent plane of arc surface overlaps with the outer tangent plane of the front arc surface of right turning elbow, the left circular arc that is connected of the top of left turning elbow and the barrel of single-drum chimney is in the outer tangent plane of arc surface at the bottom of right turning elbow, and the right circular arc that is connected of the top of right turning elbow and the barrel of single-drum chimney is 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 fully, under without the brick baffle condition, when two stoves are moved simultaneously, two flue gas discharged to for the 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 that the mutual spiralling trend that raises be arranged.Simple structure of the present invention, make easy to usely, and the space environment of chimney bottom is very significantly improved, and facilitates especially the operations staff to check and clear up the reaction dregs of fume gas condensation.
The 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 on 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 edge makes progress and the crooked break-in of direction forward 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 along upwards and the crooked break-in of direction backward arrange, 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 the front arc surface 17 of right turning elbow, the left circular arc 14 that is connected of the top of left turning elbow and the barrel of single-drum chimney is in the outer tangent plane of arc surface 13 at the bottom of right turning elbow, and the right circular arc 15 that is connected of the top of right turning elbow and the barrel of single-drum chimney is 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 also is bent upwards simultaneously prone, the right turning elbow 8 of right entry also is bent upwards simultaneously recurvate, after left turning elbow, the central angle of arc surface 16 equates to be α with the central angle of the front arc surface 17 of right turning elbow, make two advance mouth on horizontal plane fully the dislocation open, one of them advances flue gas in mouth and can not collide another and advance in mouth, under without the brick baffle condition, when two stoves are moved simultaneously, two flue gas discharged to for the dislocation oblique upper, avoided the adverse effect of mutual head-on collision, the left circular arc 14 that is connected of the top of left turning elbow and the barrel of single-drum chimney is in the outer tangent plane of arc surface 13 at the bottom of right turning elbow, the right circular arc 15 that is connected of the top of right turning elbow and the barrel of single-drum chimney is 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 that the mutual spiralling trend that raises be arranged, help plume rise.
Claims (2)
1. 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 edge makes progress and the crooked break-in of direction forward arranges, arc surface (16) after being provided with arc surface at the bottom of left turning elbow (12) and left turning elbow on left turning elbow (3), 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) be along upwards and the crooked break-in of direction backward arrange, on right turning elbow (8), be provided with arc surface (17) before arc surface at the bottom of right turning elbow (13) and right turning elbow, the outer tangent plane of arc surface after left turning elbow (16) overlaps with the outer tangent plane of the front arc surface (17) of right turning elbow, the left circular arc (14) that is connected of the top of left turning elbow and the barrel of single-drum chimney is in the outer tangent plane of arc surface (13) at the bottom of right turning elbow, and the right circular arc (15) that is connected of the top of right turning elbow and the barrel of single-drum chimney is 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 |
|---|---|---|---|
| CN201310349501.6A CN103398390B (en) | 2013-08-12 | 2013-08-12 | Single-drum chimney preventing flue inlet smoke from colliding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310349501.6A CN103398390B (en) | 2013-08-12 | 2013-08-12 | Single-drum chimney preventing flue inlet smoke from colliding |
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| CN103398390A true CN103398390A (en) | 2013-11-20 |
| CN103398390B CN103398390B (en) | 2015-06-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402749A (en) * | 2015-12-17 | 2016-03-16 | 中国能源建设集团广东省电力设计研究院有限公司 | Flue gas outlet structure of air pre-heater of one million-level pi-shaped boiler and one million-level coal-fired unit |
| CN108443900A (en) * | 2018-04-28 | 2018-08-24 | 中冶焦耐(大连)工程技术有限公司 | A kind of flue structure and its working method of unilateral side air flue coke oven |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2308866A1 (en) * | 1975-04-22 | 1976-11-19 | Air Ind | Chimney with insulated jacket round tubes - formed of abutting sections with concentric sleeves used for expansion joints |
| DE3247478A1 (en) * | 1982-01-18 | 1983-07-21 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Connection device |
| DE8808477U1 (en) * | 1988-07-01 | 1988-08-18 | Olsberger Huette Hermann Everken Gmbh & Co, 5787 Olsberg, De | |
| CN2069072U (en) * | 1989-11-23 | 1991-01-09 | 沈阳电力专科学校 | Low resistance flow deflector |
| CN2485538Y (en) * | 2001-05-16 | 2002-04-10 | 周永所 | Symmetric volute chimney inlet device |
| CN202166070U (en) * | 2011-07-26 | 2012-03-14 | 长沙有色冶金设计研究院有限公司 | Chimney capable of accurately measuring smoke discharge quantity with Pitot's tube |
| CN203501196U (en) * | 2013-08-12 | 2014-03-26 | 中国能源建设集团山西省电力勘测设计院 | Single-canister chimney for preventing flue gas collision at gas duct inlet |
-
2013
- 2013-08-12 CN CN201310349501.6A patent/CN103398390B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2308866A1 (en) * | 1975-04-22 | 1976-11-19 | Air Ind | Chimney with insulated jacket round tubes - formed of abutting sections with concentric sleeves used for expansion joints |
| DE3247478A1 (en) * | 1982-01-18 | 1983-07-21 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Connection device |
| DE8808477U1 (en) * | 1988-07-01 | 1988-08-18 | Olsberger Huette Hermann Everken Gmbh & Co, 5787 Olsberg, De | |
| CN2069072U (en) * | 1989-11-23 | 1991-01-09 | 沈阳电力专科学校 | Low resistance flow deflector |
| CN2485538Y (en) * | 2001-05-16 | 2002-04-10 | 周永所 | Symmetric volute chimney inlet device |
| CN202166070U (en) * | 2011-07-26 | 2012-03-14 | 长沙有色冶金设计研究院有限公司 | Chimney capable of accurately measuring smoke discharge quantity with Pitot's tube |
| CN203501196U (en) * | 2013-08-12 | 2014-03-26 | 中国能源建设集团山西省电力勘测设计院 | Single-canister chimney for preventing flue gas collision at gas duct inlet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402749A (en) * | 2015-12-17 | 2016-03-16 | 中国能源建设集团广东省电力设计研究院有限公司 | Flue gas outlet structure of air pre-heater of one million-level pi-shaped boiler and one million-level coal-fired unit |
| CN108443900A (en) * | 2018-04-28 | 2018-08-24 | 中冶焦耐(大连)工程技术有限公司 | A kind of flue structure and its working method of unilateral side air flue coke oven |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103398390B (en) | 2015-06-17 |
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Owner name: CHINA ENERGY ENGINEERING GROUP SHANXI ELECTRIC POW Free format text: FORMER NAME: CEEC SHANXI ELECTRIC POWER EXPLORATION + DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |
Address after: 030001 Yingze street, Shanxi, No. 255, No. Patentee after: Co., Ltd of Chinese energy construction group Shanxi Electric Power Exploration & Design Institute Address before: 030001 Yingze street, Shanxi, No. 255, No. Patentee before: CEEC Shanxi Electric Power Exploration & Design Institute |