CN103418229B - Flue gas flow equalizer for cooling tower in garbage incineration flue gas processing system - Google Patents
Flue gas flow equalizer for cooling tower in garbage incineration flue gas processing system Download PDFInfo
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- CN103418229B CN103418229B CN201310357196.5A CN201310357196A CN103418229B CN 103418229 B CN103418229 B CN 103418229B CN 201310357196 A CN201310357196 A CN 201310357196A CN 103418229 B CN103418229 B CN 103418229B
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- flue gas
- cooling tower
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Abstract
The invention relates to a flue gas flow equalizer for a cooling tower in a garbage incineration flue gas processing system. According to the technical scheme, the flue gas flow equalizer is characterized in that the flue gas flow equalizer is mounted at the top of a cooling tower shell and comprises a flue gas inlet volute, an inlet of the volute is connected with an exhaust outlet flue of a waste heat boiler, a spraying opening of the volute is connected with a flue gas inlet at the tope of the cooling tower shell through an inlet central cylinder and a central distributor, and the bottom of the inner cavity of the volute is communicated with the top of the inner cavity of the cooling tower through a fly ash collecting pipe. The flue gas flow equalizer is capable of guaranteeing even distribution of flue gas, and accordingly equipment operation stability is increased, and the problems such as tower wall adhesion and abrasion caused by flue gas deviation are reduced. In addition, the flue gas flow equalizer is simple and reasonable in structure and convenient to use.
Description
Technical field
The present invention relates to technical field of waste incineration, particularly relate to a kind of flue gas flow equalizing device being applied to cooling tower in the smoke processing system of burning away the refuse.
Background technology
Along with expanding economy, urbanization process are accelerated and the modernization increasingly of material consumption, Municipal Domestic Garbage Output sharply increases, and waste incineration method is one of main method becoming urban garbage disposal.After the flue gas that waste incineration produces enters the cooling tower of smoke processing system, mix with the lime white nertralizer be ejected in tower or cooling water, the uniformity of flue gas directly affects the mixed effect of flue gas and nertralizer and the evaporation rate of cooling water.In view of the instability of waste incineration load, the flue gas of generation cannot reach stable state, and this directly affects the normal operation of smoke processing system.
The flue gas (being especially the refuse furnace of combustion system with grate furnace) that incinerator produces, consider etching problem, the exhaust gas temperature of waste heat boiler is relatively all higher, simultaneously containing certain sour gas and dust, in order to reach stable treatment effect, need the flue gas entering cooling tower in smoke processing system to carry out dust initial gross separation, reduce and enter the wearing and tearing of the dust in flue gas to inlet flue duct; In addition, it is crucial that be evenly distributed in tower by the flue gas stream of instability, especially for the working condition of waste incineration instability, make it fully to mix with desuperheating water and nertralizer, the time of improving moisture evaporation presses, and reaches the effect of effective depickling simultaneously.For this reason, the flue gas flow equalizing device designing and developing a superior performance, to adapt to the demand of different operating mode, is very important.
Summary of the invention
The object of the invention is to overcome the deficiency in above-mentioned background technology, a kind of flue gas flow equalizing device being applied to cooling tower in the smoke processing system of burning away the refuse is provided, this flue gas flow equalizing device should be able to guarantee flue gas distributed uniform, thus improve the stability of equipment operation, reduce the tower wall brought because of flue gas bias current to cohere and the problem such as wearing and tearing, have simple and reasonable, feature easy to use simultaneously.
For realizing above object, present invention employs following technical scheme:
Be applied to the flue gas flow equalizing device of cooling tower in the smoke processing system of burning away the refuse, it is characterized in that: described flue gas flow equalizing device is arranged on the cooling tower shell top of smoke processing system, comprise a smoke inlet spiral case, the suction inlet of this smoke inlet spiral case is connected with the exhaust outlet flue of waste heat boiler, the jet of smoke inlet spiral case is connected with the smoke inlet at cooling tower shell top by entrance center cylinder and Central distributor, and the inner cavity top of the intracavity bottom of self with described cooling tower is also communicated with by a flying dust collecting pipe by this smoke inlet spiral case.
Described smoke inlet spiral case is horizontally disposed, and the jet bottom it docks with the described entrance center cylinder vertically arranged.
Described Central distributor is vertically docked with entrance center cylinder, is provided with the straightener(stator) blade to flue gas eddy flow and rectification in Central distributor.
Described suction inlet is arranged along the tangential direction of smoke inlet spiral case, and this suction inlet is docked with the exhaust outlet flue of described waste heat boiler by smoke inlet interface flange.
Operation principle of the present invention is: enter smoke inlet spiral case 2 from the exhaust outlet flue flue gas out of waste heat boiler by smoke inlet interface flange 1, Central distributor 4 is entered by entrance center cylinder 3, through eddy flow and the rectified action of straightener(stator) blade, flue gas is imported in cooling tower shell 6 equably, makes it to mix uniformly with the lime white sprayed in cooling tower and cooling water; Meanwhile, the bulky grain in flue gas enters the inner chamber of cooling tower from flying dust collecting pipe 5 under the effect of inertia force, avoids the erosive wear to straightener(stator) blade.
The invention has the beneficial effects as follows: this flue gas flow equalizing device instead of original flue gas directly enters cooling tower (or reaction tower) from the side structure by a tangential inlet, by this current equalizer, two effects can be obtained: 1. guarantee that flue gas flow field is even, avoid the problem of flue gas maldistribution, 2. improve the stability that equipment runs, decrease the tower wall brought due to flue gas bias current and cohere and the problem such as wearing and tearing; In the practical application of this device, the gas treatment ability scope of smoke processing system can be 9300Nm3/h ~ 65000Nm3/h, flue gas distribution in cooling tower is fully improved, substantially the problem without dust stratification and glutinous wall produces, and ensure that the stable operation of refuse burning system also improves production efficiency while producing; Meanwhile, structure of the present invention is also fairly simple, and manufacturing cost is cheaper, has good market prospects.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 is the plan structure schematic diagram of smoke inlet spiral case in Fig. 1.
Fig. 3 is the main TV structure enlarged diagram of Central distributor.
Fig. 4 is the plan structure schematic diagram of Fig. 3.
Have in figure: 1. smoke inlet interface flange, 2. smoke inlet spiral case, 2-1. suction inlet, 3. entrance center cylinder, 4. Central distributor, 4-1. straightener(stator) blade, 5. flying dust collecting pipe, 6. cooling tower shell.
Detailed description of the invention
Below in conjunction with Figure of description, the invention will be further described, but the present invention is not limited to following examples.
As shown in Figure 1, a kind of flue gas flow equalizing device being applied to cooling tower in the smoke processing system of burning away the refuse, be arranged on cooling tower shell 6 top of smoke processing system, comprising a horizontally disposed smoke inlet spiral case 2(spiral case is conventional structure, can directly select; Specification is determined according to need of production), the suction inlet 2-1 of this smoke inlet spiral case is connected with the exhaust outlet flue of waste heat boiler in refuse burning system, thus the flue gas that access waste heat boiler is discharged, jet bottom smoke inlet spiral case is by the turbine of entrance center cylinder 3 and Central distributor 4(and conventional structure) is connected with the smoke inlet at cooling tower shell top, by the flue gas feeding cooling tower that accesses with lime white and cooling water Homogeneous phase mixing.
Described suction inlet is arranged along the tangential direction of smoke inlet spiral case, and this suction inlet is docked with the exhaust outlet flue of described waste heat boiler by smoke inlet interface flange 1.
Described jet is positioned at the bottom surface of smoke inlet spiral case by paracentral position, entrance center cylinder and Central distributor are all vertically arranged and are docking integrally, flue gas is after Central distributor sent into by jet, entrance center cylinder, carry out eddy flow and rectification by the straightener(stator) blade 4-1 of Central distributor, then to send in cooling tower can with lime white and cooling water Homogeneous phase mixing.
The inner cavity top of the intracavity bottom of self with described cooling tower is also communicated with by a flying dust collecting pipe 5 by this smoke inlet spiral case, and as shown in Figure 1, this flying dust collecting pipe is vertically arranged in the position of smoke inlet spiral case bottom surface near spiral case edge.After flue gas enters spiral case, the bulky grain in flue gas can enter flying dust collecting pipe under the effect of inertia force, finally enters in cooling tower inner chamber, thus avoids flue gas to the erosive wear of straightener(stator) blade, reduces maintenance times, the reliability of assurance device.
Claims (1)
1. be applied to the flue gas flow equalizing device of cooling tower in the smoke processing system of burning away the refuse, it is characterized in that: described flue gas flow equalizing device is arranged on cooling tower shell (6) top of smoke processing system, comprise a smoke inlet spiral case (2), the suction inlet (2-1) of this smoke inlet spiral case is connected with the exhaust outlet flue of waste heat boiler, the jet of smoke inlet spiral case is connected with the smoke inlet at cooling tower shell top by entrance center cylinder (3) and Central distributor (4), the inner cavity top of the intracavity bottom of self with described cooling tower is also communicated with by a flying dust collecting pipe (5) by this smoke inlet spiral case,
Described smoke inlet spiral case is horizontally disposed, and the jet bottom it docks with the described entrance center cylinder vertically arranged;
Described Central distributor is vertically docked with entrance center cylinder, is provided with the straightener(stator) blade (4-1) to flue gas eddy flow and rectification in Central distributor;
Described suction inlet is arranged along the tangential direction of smoke inlet spiral case, and this suction inlet is docked with the exhaust outlet flue of described waste heat boiler by smoke inlet interface flange (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310357196.5A CN103418229B (en) | 2013-08-15 | 2013-08-15 | Flue gas flow equalizer for cooling tower in garbage incineration flue gas processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310357196.5A CN103418229B (en) | 2013-08-15 | 2013-08-15 | Flue gas flow equalizer for cooling tower in garbage incineration flue gas processing system |
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| Publication Number | Publication Date |
|---|---|
| CN103418229A CN103418229A (en) | 2013-12-04 |
| CN103418229B true CN103418229B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310357196.5A Active CN103418229B (en) | 2013-08-15 | 2013-08-15 | Flue gas flow equalizer for cooling tower in garbage incineration flue gas processing system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063241A (en) * | 1991-01-17 | 1992-08-05 | 华中理工大学 | Recirculating fluidized bed boiler fly ash separator |
| CN2274524Y (en) * | 1996-11-14 | 1998-02-18 | 国家建筑材料工业局合肥水泥研究设计院 | High performance low resistance vortex dust collector |
| CN103111125A (en) * | 2012-12-10 | 2013-05-22 | 大连九星科技有限公司 | Cyclone separator type gas dust remover |
| CN203425713U (en) * | 2013-08-15 | 2014-02-12 | 杭州新世纪能源环保工程股份有限公司 | Flue-gas flow-equalizing device applied to cooling tower in flue-gas treating system for garbage incineration |
-
2013
- 2013-08-15 CN CN201310357196.5A patent/CN103418229B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063241A (en) * | 1991-01-17 | 1992-08-05 | 华中理工大学 | Recirculating fluidized bed boiler fly ash separator |
| CN2274524Y (en) * | 1996-11-14 | 1998-02-18 | 国家建筑材料工业局合肥水泥研究设计院 | High performance low resistance vortex dust collector |
| CN103111125A (en) * | 2012-12-10 | 2013-05-22 | 大连九星科技有限公司 | Cyclone separator type gas dust remover |
| CN203425713U (en) * | 2013-08-15 | 2014-02-12 | 杭州新世纪能源环保工程股份有限公司 | Flue-gas flow-equalizing device applied to cooling tower in flue-gas treating system for garbage incineration |
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|---|---|
| CN103418229A (en) | 2013-12-04 |
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