CN1624381A - Circulation flowing boiler with arch door and tilt whirl rabber in burner - Google Patents
Circulation flowing boiler with arch door and tilt whirl rabber in burner Download PDFInfo
- Publication number
- CN1624381A CN1624381A CNA2004100960430A CN200410096043A CN1624381A CN 1624381 A CN1624381 A CN 1624381A CN A2004100960430 A CNA2004100960430 A CN A2004100960430A CN 200410096043 A CN200410096043 A CN 200410096043A CN 1624381 A CN1624381 A CN 1624381A
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- CN
- China
- Prior art keywords
- burner
- combustion furnace
- rabber
- whirl
- boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/02—Structural details of mounting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention relates to a circulation flowing boiler with arch door and tilt whirl rabber in burner, which can reinforce the circle of the solid particles in burner, improve the exhaust flow from burner to whirl rabber, gradually increase flow rate, maximize the separation efficiency of the solid particles in burner, in order to obtain improved performance of flowing boiler. In the circulation flowing boiler, the fuel and air as fuel are immitted to form flowing layer, and the discharge of the combustible material which does not burn is little as far as possible, and the sulfonic acid and nitric oxides are reduced as far as possible. The water-cool wall of the burner is in the connection portion of the said burner and whirl rabber and has a inboard arc, and the base surface is setup slantly, in order to reduce the inner width of the delivery pipe connecting burner and whirl rabber.
Description
Technical field
The present invention relates to a kind of circular flow boiler that in combustion furnace, has arched door and inclination eddy flow notch, relate in particular to structure and eddy flow notch structure above a kind of combustion furnace, it is used to increase solid particle circulation and heat-transfer character in the fluidized bed boiler combustion stove, and the interior exhaust-gas flow that flows into of eddy flow groove that is used for evenly successfully leading.
Background technology
As shown in Figure 1, in common mobile grate firing burning boiler in the past, in general utilize connection carrier pipe 12 to flow at the waste gas of combustion furnace 11 internal combustion in the eddy flow groove 13, and utilize inflow entrance or blade etc. in described eddy flow groove 13, to produce rotating flow, after being rotatablely moved, waste gas descends, after the interior particle of waste gas this moment utilizes centrifugal force to break away from rotating flow, collision is at the inwall of eddy flow groove 13, drop into the dust stacker 14 interior depositions of bottom surface, and utilize more below cylinder narrow more eddy flow groove 13 to increase the speed of rotating flow, make particle obtain sufficient centrifugal force, realize the capture of subparticle.Because downward like this rotating flow is through the end of inner cylinder, so the big outer vortex internal layer of diameter will break away from natural separation after the lower pressure region along the central shaft of eddy current.
In addition, the fluidized bed boiler is in burning, and described combustion furnace 11 inside will produce multiple reactions such as calcining, sulfonated, nitrogen oxidation, so flow phenomenon in the combustion furnace 11 and mixed characteristic play a very important role to the running of boiler.
Usually, the fluidized bed boiler is different from plain cylindrical furnace, can control the effect that solid particle causes, so particle flow in the combustion furnace and granule density etc. will become important factors.Therefore, Dispersion of Solid Particles flows out in the combustion furnace by reducing as far as possible, and increases the holdup time in the combustion furnace, can improve heat-transfer effect.In addition,, and evenly flow, can make the heat-transfer effect maximization of fluidized bed boiler and reduce the Dispersion of Solid Particles outflow by the contained solid particle amount of waste gas that flows in the minimizing eddy flow groove.
In addition, the waste gas flow velocity that flows in the eddy flow groove can produce a very large impact the separating effect of eddy flow groove, the fast more separative efficiency of flow velocity is high more, when but flow velocity is excessive, can too much consume the power of fan (fan) etc. again and unfavorable economically, so need to increase flow velocity in the favourable economically scope, and need and be beneficial to the shape that increases effect by the increase of flow velocity.
So far, extensively proposed technically and the multiple internal structure of the circulating fluidized bed boiler considered economically.Particularly, the ratio that U.S. Patent No. 5771844 has been put down in writing the height that will connect carrier pipe 12 in combustion furnace 11 and width as shown in Figure 3 increases, and U.S. Patent No. 6322601 as Fig. 4 a with put down in writing the width that will be connected carrier pipe 12 shown in Fig. 4 b and reduced continuously, to form multiple shape, finally obtain increasing the shape of burning gases flow velocity, wherein said connection carrier pipe 12 is used to connect combustion furnace 11 and eddy flow groove 13.
But, still need the fluidized bed boiler of multiple shape and architecture advances so far, be used to improve the boiler performance of effective exhaust-gas flow and solid particle separative efficiency etc.
Summary of the invention
For solving above-mentioned problem in the past the present invention is proposed.The purpose of this invention is to provide a kind of circular flow boiler that has arched door and inclination eddy flow notch in combustion furnace inside, it can strengthen the circulation of solid particle in combustion furnace inside, improvement flows into the exhaust-gas flow of eddy flow groove from combustion furnace, increase flow velocity gradually, with the separative efficiency maximization of the solid particle in the eddy flow groove, with the fluidized bed burning boiler performance that is improved.
For achieving the above object and eliminating in the past shortcoming, the invention provides a kind of circular flow boiler, it has combustion fuel and generates the combustion furnace of high-temperature gas, and the eddy flow groove that links to each other with described combustion furnace, described eddy flow groove is used for being separated in unburned part and the burning gases that combustion furnace does not have completing combustion, and the unburned part of described separation is circulated in combustion furnace again; It is characterized in that the water cooling wall of combustion furnace has arch to the inside, described water cooling wall is positioned at the inlet side that is connected carrier pipe that connects described combustion furnace and eddy flow groove.
In addition, bottom surface is obliquely installed, the carrier pipe width that is connected that connects described combustion furnace and eddy flow groove is reduced.
Description of drawings
Fig. 1 is a skeleton diagram of representing common in the past fluidized bed burning boiler structure.
Fig. 2 is the structure chart of expression apparatus of the present invention structure.
Fig. 3 is the structure chart that expression changes the ratio of the height of connection carrier pipe (duct) in the past and width.
Fig. 4 a and Fig. 4 b are the cross section structure figure that reduces the shape behind the width in the sectional area that is connected carrier pipe that is illustrated in the past continuously.
Description of reference numerals
11: combustion furnace 12: connect carrier pipe 13: eddy flow groove (cyclone)
14: dust stacker 15: high-temperature gas 16: combustion air
17: fuel/combustion air 50: arched door (arch) 55: bottom surface
The specific embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing.
Shown in the structure chart of the present invention of Fig. 2, on have the fluidized bed combustion furnace 11 of water cooling wall, utilize connection carrier pipe 12 that combustion furnace 11 is linked to each other with eddy flow groove 13, by the end that links to each other with the bottom surface 55 that is connected carrier pipe 12 is arched door 50 shapes, increase the circulation of the solid particle of combustion furnace 11 inside, the heat-transfer effect of combustion furnace 11 inside is improved, reduce the SOX of reaction generations such as calcining (calcination) and sulfonated (sulfation), and by arched door 50 is set the waste gas that connects inflow in the carrier pipe 12 is evenly flowed, this will improve the particle separation effect in the eddy flow groove 13.
In addition, in the present invention, utilize connection carrier pipe 12 that combustion furnace 11 is linked to each other with eddy flow groove 13, and the bottom surface 55 that will connect carrier pipe 12 is obliquely installed and reduces to connect the sectional area of carrier pipe 12 outlets one side, waste gas is flowed naturally, when waste gas flows in the described eddy flow groove 13, can obtain suitable flow velocity, make the separative efficiency of the solid particle of eddy flow groove 13 inside obtain maximum dynamic effect, by increasing the flow velocity of eddy flow groove 13 inlets, can increase mixed effect, help the mixed combustion and the residual azochlorosulfonate acid compound of unburned part in the waste gas, the elimination of residual nitrogen oxide.
The present invention is not limited to above preferred embodiment, does not break away from the relevant personnel of protection domain of the present invention in described field and all can realize the numerous variations embodiment, and these changes are included in the described protection domain.
As mentioned above, according to the present invention, can prevent that solid particle from too much flowing out above combustion furnace with burning gases, the multiple reaction efficiency that raising is carried out in combustion furnace, improve the separative efficiency that flows into the discharge solid particle of eddy flow groove with the waste gas one, and can reduce the discharge of unburned part, improve the mixing of combustion gases effect, reduce azochlorosulfonate acid compound and nitrogen oxide, finally obtain fluidized bed boiler stable and that effectively turn round.
Claims (1)
1, a kind of circular flow boiler, combustion furnace (11) with combustion fuel and generation high-temperature gas, and the eddy flow groove (13) that links to each other with described combustion furnace (11), described eddy flow groove is used for being separated in unburned part and the burning gases that combustion furnace (11) does not have completing combustion, makes the unburned part circulation in combustion furnace (11) again of described separation simultaneously;
It is characterized in that the water cooling wall of described combustion furnace (11) has arched door (50) shape to the inside, described water cooling wall is positioned at below the inlet side that is connected carrier pipe (12) that connects above the described combustion furnace (11) with eddy flow groove (13);
Bottom surface (55) is obliquely installed, the width that is connected carrier pipe (12) that connects described combustion furnace (11) and eddy flow groove (13) is reduced.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030087037A KR20050053820A (en) | 2003-12-03 | 2003-12-03 | Water wall arch and inclined cyclone inlet in a combustion chamber of the cfbc boiler |
| KR10-2003-0087037 | 2003-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1624381A true CN1624381A (en) | 2005-06-08 |
Family
ID=34793141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100960430A Pending CN1624381A (en) | 2003-12-03 | 2004-11-26 | Circulation flowing boiler with arch door and tilt whirl rabber in burner |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20050053820A (en) |
| CN (1) | CN1624381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739956A (en) * | 2018-09-20 | 2021-04-30 | Ifp新能源公司 | Device and method for chemical looping combustion with particle separator provided with inclined inlet duct |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108658B (en) * | 2022-07-01 | 2024-05-28 | 日达智造科技(如皋)有限公司 | Centrifugal waste cutting fluid separation recovery unit |
| CN116481022B (en) * | 2023-04-28 | 2024-08-09 | 哈尔滨红光锅炉总厂有限责任公司 | Water-cooled oil ignition device of circulating fluidized bed boiler |
-
2003
- 2003-12-03 KR KR1020030087037A patent/KR20050053820A/en not_active Application Discontinuation
-
2004
- 2004-11-26 CN CNA2004100960430A patent/CN1624381A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739956A (en) * | 2018-09-20 | 2021-04-30 | Ifp新能源公司 | Device and method for chemical looping combustion with particle separator provided with inclined inlet duct |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050053820A (en) | 2005-06-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |