CN1302855C - Cooling type high temperature gas solid separation device - Google Patents
Cooling type high temperature gas solid separation device Download PDFInfo
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- CN1302855C CN1302855C CNB2004100573264A CN200410057326A CN1302855C CN 1302855 C CN1302855 C CN 1302855C CN B2004100573264 A CNB2004100573264 A CN B2004100573264A CN 200410057326 A CN200410057326 A CN 200410057326A CN 1302855 C CN1302855 C CN 1302855C
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- 239000007787 solid Substances 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 title claims abstract description 12
- 238000001816 cooling Methods 0.000 title claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000001133 acceleration Effects 0.000 claims abstract 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005514 two-phase flow Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000003134 recirculating effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
一种冷却式高温气固分离装置，涉及一种循环流化床锅炉使用的高温水冷气固分离装置。本发明采用膜式水冷壁构成的旋风筒结构，主要由筒体、设置在筒体侧壁上的入口段、筒体底部的加速段以及筒体上部带喉部结构的中心筒组成。筒体采用圆钢点焊管子构成的水冷膜式壁结构，加速段采用一次或两次分叉管构成的水冷膜式壁。入口段顶部所在平面与水平面成一下倾角，中心筒与筒体成偏心布置。本发明具有制造、安装方便，生产成本低等优点；同时采用偏置式带喉部的中心筒结构，能与加速段很好地配合，从而使气体和固体颗粒得到加速，因此对浓相气固两相流的分离效果更好。
A cooling type high-temperature gas-solid separation device relates to a high-temperature water-cooled gas-solid separation device used in a circulating fluidized bed boiler. The invention adopts the cyclone structure formed by the membrane water cooling wall, which is mainly composed of a cylinder body, an inlet section arranged on the side wall of the cylinder body, an acceleration section at the bottom of the cylinder body, and a central cylinder with a throat structure on the top of the cylinder body. The cylinder adopts a water-cooled membrane wall structure composed of round steel spot-welded pipes, and the acceleration section adopts a water-cooled membrane wall composed of one or two bifurcated pipes. The plane where the top of the inlet section is located is at an inclination angle to the horizontal plane, and the central cylinder is arranged eccentrically with the cylinder body. The invention has the advantages of convenient manufacture and installation and low production cost; at the same time, it adopts an offset central cylinder structure with a throat, which can cooperate well with the acceleration section, so that the gas and solid particles can be accelerated, so the dense phase gas The separation effect of solid two-phase flow is better.
Description
Technical field
The present invention relates to a kind of gas-solid separating device, particularly a kind of high-temperature water cooling gas-solid separating device that is applied on the CFBB.
Background technology
The separating mechanism of recirculating fluidized bed is one of critical component of recirculating fluidized bed, it mainly acts on is that a large amount of high-temp solid materials are separated from air-flow, sends the combustion chamber back to, to keep the fast fluidized condition of combustion chamber, guarantee that fuel and desulfurizing agent repeatedly circulate, burn repeatedly and react.Like this, just might reach desirable efficiency of combustion and desulfuration efficiency.Therefore, the performance of recirculating fluidized bed separating mechanism will directly influence master-plan, system layout and the boiler operatiopn performance of whole circulation fluidized-bed combustion boiler.Wherein most widely used is whirlwind separator.What development was come out at first is the high-temperature heat insulation cyclone separator, the high temperature whirlwind tube separator that its typical structure has refractory material to make, there are scuff-resistant coating and heat insulation layer in inside, and the separator of this type has accounted for the overwhelming majority of the CFBB that has moved He building.Though its separating property excellence, whirlwind tube itself is huge, the cost height, and sealing and expansion system complexity, start-up time is long, and operation is out of order easily, especially when the fuel of combustion activity difference, the problem of overtemperature coking takes place easily in the whirlwind tube or in the feed back leg.For keeping the advantage of adiabatic whirlwind tube CFBB, overcome the defective of this type of furnace simultaneously effectively, Foster Wheeler company has designed the cold cyclone separator of water (vapour) that is exemplary.This separator shell by water-cooled or the cold pipe of vapour bend, being welded forms, be provided with fin between the tube and tube, form the membrane wall structure of classical field formalism, cancelled the high-temperature heat insulation layer of adiabatic whirlwind tube thus, its external structure as shown in Figure 1, and inboard replace curved surface that heating surface makes and the inboard pin that is covered with is coated with the thin high-temperature wearable of one deck and waters material feeding, and the shell outside is coated with certain thickness heat-insulation layer, and its structure is as shown in Figure 2.Water cooled pipeline is along highly vertically arranging, diminish owing to the separator diameter at accelerating sections, pipeline takes to take out tube designs, part pipeline is still arranged along the taper outer, another part then stretches out heat-insulation layer, straight down, two parts pipeline finally is incorporated in the annular header of accelerating sections and dipleg intersection.After arranging water-cooling wall on the separator, this whirlwind tube can absorb a part of heat in running, and temperature of charge can not rise in the separator, even slightly descends.The problem of material return system coking never takes place in the CFBB that the said firm puts into operation, and wear problem in the whirlwind tube does not take place yet, and has fully shown its superiority.Like this, the advantage of high-temperature heat insulation type cyclonic separation recirculating fluidized bed is continued performance, and shortcoming then is overcome substantially.But the problem of this separator is the manufacturing process complexity, and the manufacturing of especially classical water-cooling wall is relatively more difficult with installation, causes production cost too high, lacks the market competitiveness, and its commercial competitiveness is descended, and versatility and promotional value are restricted.
Summary of the invention
The objective of the invention is on the basis of original water-cooled cyclone separator, a kind of cooled High Temperature Gas solid separation device is provided, make it both have manufacturing, mounting process is simple, lower-cost advantage can further improve its separative efficiency again.
Technical scheme of the present invention is as follows:
A kind of cooled High Temperature Gas solid separation device, the whirlwind barrel structure that adopts fin panel casing to constitute, described whirlwind tube by cylindrical shell, be arranged on entrance on the cylinder lateral wall, the accelerating sections of cylindrical shell bottom and the central tube of cylindrical shell top band laryngeal structure and form, it is characterized in that: the water-cooled membrane wall structure that described cylindrical shell adopts round steel spot welding pipe to constitute, described accelerating sections adopt the water-cooled membrane wall structure of bifurcated pipe formation once or twice.
Technical characterictic of the present invention also is: plane, place, described entrance top becomes with horizontal plane inclination alpha, and its span is 5 °＜α＜25.
On the basis of such scheme, the central tube of band laryngeal structure of the present invention and cylindrical shell adopt arranged off-centre, and its eccentric throw is 0.03 times of barrel diameter, and the angle between two circle center line connectings and the horizontal line is 45 °
The present invention compared with prior art, have the following advantages and the high-lighting effect: 1. the present invention is owing to adopt the simplification film water cold wall structure of bifurcated pipe and round steel spot welding pipe once or twice, make and make processing and install very conveniently, manufacturing process complexity, the production cost that has overcome the cold cyclone separator of classical water (vapour) be too high, lack problem such as the market competitiveness; 2. adopt the central tube of arranged off-centre, can reach the effect of similar worm frame; The laryngeal structure of central tube outlet simultaneously obtains quickening with making gas and solid particle cooperating of accelerating sections well, and is therefore better to the separating effect of concentrated phase Dual-Phrase Distribution of Gas olid.
Description of drawings
The classical water-cooled cyclone separator perspective view of Fig. 1 for using in the prior art.
Fig. 2 is classical water-cooled cyclone separator wall structure chart.
Fig. 3 is a bifurcated pipe structural representation.
Fig. 4 is a secondary bifurcated pipe structural representation.
Fig. 5-water-cooled cyclone separator structure schematic diagram provided by the present invention.
Fig. 6-water-cooled cyclone separator wall structure chart provided by the present invention.
Fig. 7 is the vertical view of Fig. 5, and central tube and the cylindrical shell of expressing the band laryngeal structure adopt arranged off-centre.
The specific embodiment
Further describe concrete structure of the present invention and most preferred embodiment below in conjunction with accompanying drawing.
Cooled High Temperature Gas solid separation device provided by the invention comprises the whirlwind tube that fin panel casing constitutes, and this whirlwind tube is made up of cylindrical shell 2, the accelerating sections 4 that is arranged on the central tube 3 of entrance 1 on the cylinder lateral wall, band laryngeal structure and is arranged on the cylindrical shell bottom; Be provided with light thermal-insulating material 9 between separator wall shell 8 and the pipeline 6, cylindrical shell adopts round steel 7 spot welding pipes 6 to constitute the water-cooled membrane wall structures, is welded with pin 10 on the pipeline of wall inboard, in order to fixing castable refractory 11.Described accelerating sections 4 adopts the water-cooled membrane wall of bifurcated pipe formation once or twice.
Separator inlet section plane and cylindrical shell curved surface are tangent, and plane, place, described entrance top becomes with horizontal plane inclination alpha, and its span is 5 °＜α＜25 °.Such design can make solid particle enter with gas cylindrical shell the time have a downward component velocity, help solid particle and arrive the cylindrical shell bottom, thereby can further improve separative efficiency.
Fig. 7 expresses the central tube of band laryngeal structure and the structure that cylindrical shell adopts arranged off-centre, and its eccentric throw is 0.03 times of barrel diameter, and the angle between two circle center line connectings and the horizontal line is 45 °.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100573264A CN1302855C (en) | 2004-08-27 | 2004-08-27 | Cooling type high temperature gas solid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100573264A CN1302855C (en) | 2004-08-27 | 2004-08-27 | Cooling type high temperature gas solid separation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1597132A CN1597132A (en) | 2005-03-23 |
| CN1302855C true CN1302855C (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100573264A Expired - Fee Related CN1302855C (en) | 2004-08-27 | 2004-08-27 | Cooling type high temperature gas solid separation device |
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| Country | Link |
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| CN (1) | CN1302855C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075728A (en) * | 2013-02-04 | 2013-05-01 | 太原锅炉集团有限公司 | Flow-reconstruction based circulating fluidized bed boiler for controlling nitric oxide |
| CN104089281A (en) * | 2014-07-25 | 2014-10-08 | 中国华能集团清洁能源技术研究院有限公司 | Cyclone separator of circulating fluidized bed boiler with double eccentric central cylinders |
| CN105444161B (en) * | 2016-01-26 | 2017-07-07 | 哈尔滨红光锅炉总厂有限责任公司 | Environment-friendly and energy-efficient CFBB |
| JP6710618B2 (en) * | 2016-10-12 | 2020-06-17 | 三菱日立パワーシステムズ株式会社 | Furnace wall, gasification furnace equipment, gasification combined cycle power generation equipment, and method of manufacturing furnace wall |
| CN106524140A (en) * | 2016-11-25 | 2017-03-22 | 上海锅炉厂有限公司 | Steam-cooled cyclone separator of center barrel structure |
| CN106979515A (en) * | 2017-05-02 | 2017-07-25 | 江苏汇能锅炉有限公司 | The cyclone separator of the disposable bend pipe tube panel of CFBB |
| CN107084630B (en) * | 2017-05-18 | 2019-04-05 | 华北理工大学 | A kind of application of membrane wall structure in particle heat exchange |
| CN112902220A (en) * | 2020-12-22 | 2021-06-04 | 中国天辰工程有限公司 | Y-shaped pipe and water-cooled wall |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235948A (en) * | 1988-07-22 | 1990-02-06 | Kanegafuchi Chem Ind Co Ltd | Decanter type centrifugal separator |
| CN1027425C (en) * | 1989-08-18 | 1995-01-18 | 福斯特·惠勒能源公司 | Cyclone separator |
| CN2382475Y (en) * | 1999-07-23 | 2000-06-14 | 清华大学 | Water cooling high temperature cyclone separator with external speed-up section |
| CN2481990Y (en) * | 2001-06-15 | 2002-03-13 | 清华大学 | High strength film type water-cooled wall for boiler |
| US20040035018A1 (en) * | 2000-09-22 | 2004-02-26 | Martin Denuell | Centrifuge for mechanical draining and thermal drying of sludges |
-
2004
- 2004-08-27 CN CNB2004100573264A patent/CN1302855C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235948A (en) * | 1988-07-22 | 1990-02-06 | Kanegafuchi Chem Ind Co Ltd | Decanter type centrifugal separator |
| CN1027425C (en) * | 1989-08-18 | 1995-01-18 | 福斯特·惠勒能源公司 | Cyclone separator |
| CN2382475Y (en) * | 1999-07-23 | 2000-06-14 | 清华大学 | Water cooling high temperature cyclone separator with external speed-up section |
| US20040035018A1 (en) * | 2000-09-22 | 2004-02-26 | Martin Denuell | Centrifuge for mechanical draining and thermal drying of sludges |
| CN2481990Y (en) * | 2001-06-15 | 2002-03-13 | 清华大学 | High strength film type water-cooled wall for boiler |
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| Publication number | Publication date |
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| CN1597132A (en) | 2005-03-23 |
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Granted publication date: 20070307 Termination date: 20110827 |