CN203848311U - Smoke dust control device of flue high-temperature section of thermal power plant - Google Patents
Smoke dust control device of flue high-temperature section of thermal power plant Download PDFInfo
- Publication number
- CN203848311U CN203848311U CN201420149635.3U CN201420149635U CN203848311U CN 203848311 U CN203848311 U CN 203848311U CN 201420149635 U CN201420149635 U CN 201420149635U CN 203848311 U CN203848311 U CN 203848311U
- Authority
- CN
- China
- Prior art keywords
- flue
- horizontal
- dust
- flues
- vertical
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims abstract description 57
- 239000000779 smoke Substances 0.000 title abstract 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003546 flue gas Substances 0.000 claims abstract description 10
- 206010022000 influenza Diseases 0.000 claims description 49
- 230000003009 desulfurizing effect Effects 0.000 claims description 15
- 239000003500 flue dust Substances 0.000 claims description 15
- 238000006477 desulfuration reaction Methods 0.000 abstract 2
- 230000023556 desulfurization Effects 0.000 abstract 2
- 238000010531 catalytic reduction reaction Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012857 repacking Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011044 inertial separation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a smoke dust control device of a flue high-temperature section of a thermal power plant. The existing high-temperature section dust removal device is unreasonable in structural design and the high-temperature section dust removal problems cannot be conveniently, flexibly and effectively solved. The smoke dust control device comprises a boiler, an SCR (Selective Catalytic Reduction) reactor, an air preheater, a dust removal device, an induced draft fan, a desulfurization tower, a chimney and a flue, wherein the SCR reactor, the air preheater, the dust removal device, the induced draft fan and the desulfurization tower are arranged on the flue along the direction of flow of the flue gas in turn. The smoke dust control device is characterized by also comprising a dust separator and a dust hopper; the flue comprises a first horizontal flue and a first vertical flue; one end of the first horizontal flue is connected with the boiler; the other end of the first horizontal flue is connected with one end of the first vertical flue; the dust separator is arranged in the first vertical flue; the dust hopper is arranged at the bottom of the first horizontal flue; the dust hopper is located under the dust separator; the dust hopper is matched with the dust separator. According to the smoke dust control device of the flue high-temperature section of the thermal power plant, the high-temperature section dust can be conveniently, flexibly and effectively removed.
Description
Technical field
The utility model relates to a kind of flue dust control device, especially relates to a kind of thermal power plant flue high temperature section flue dust control device, the dust concentration of power plant boiler afterbody high temperature section flue can be controlled in best scope.
Background technology
At present, coal shortage as primary energy, particularly the high-quality coal of low sulfur, low ash and golf calorific value is rare, the thermal power plant that the coal of take is main fuel is affected by it, fire coal used turns to the coal inferior of high sulphur content, high ash content and lower calorific value from the high-quality coal of design, from practice situation, there are problems in the thermal power plant of burning low grade coal kind, and wherein modal problem is the stifled grey problem of the stifled ash of SCR Benitration reactor and the corrosion of air preheater.
The stifled ash of SCR Benitration reactor can cause denitration efficiency to decline, and affects security and the economy of Benitration reactor.The corrosion of air preheater and stifled ash be a very great potential safety hazard of the high sulphur content He Gao ash content of a lot of burnings power plant especially, on the one hand, after air preheater stops up, flue resistance loss increases, smooth in order to guarantee flue, must strengthen exerting oneself of air-introduced machine, thereby cause the huge of electric weight to expend, the stifled ash of air preheater even can cause compressor emergency shutdown when serious, on the other hand, after air preheater erodes to a certain degree, degradation of heat exchange performance, need regularly to shut down and change heat exchange element, therefore the corrosion of air preheater and stifled grey problem become a very serious problem of current thermal power plant.
Solving the stifled grey fundamental means of SCR reactor and air preheater is to reduce the ash amount that enters SCR equipment and air preheater equipment, and in the situation that coal-fired ature of coal cannot change, the best way is exactly the dedusting of flue high temperature section.Thermal power plant's flue high temperature section dedusting not only can be good at solving the stifled grey problem of the high sulphur content He Gao ash content SCR of the power plant Benitration reactor of burning and air preheater, and also has direct effect to slowing down air preheater corrosion.Relevant scholar has done the problem that a lot of research solves the dedusting of flue high temperature section both at home and abroad, being included in economizer exit arranges economizer hopper, bulky grain filter screen is set, denitration ash bucket etc. is set, ash bucket is mainly to utilize the inertia of flue gas to reach separated effect, particle that can only be separated larger; Filter screen is that selectively separating particles diameter is greater than the method for filter screen mesh, and filter screen does not reach the separating effect of anticipation too greatly, and the too little resistance of filter screen is excessive, and the obstruction of filter screen and etching problem are also the key factors that limits its application.Some enviromental protection enterprises are applied to electrostatic precipitation technology in flue high temperature section, form the high-temperature electric dedusting different with conventional electric precipitation, but because involving great expense, can not get promoting, in addition, the unit that some have been moved, do not have enough spaces that high-temperature electric dedusting is installed, so high-temperature electric dedusting is not widely used yet at all.
In sum, thermal power plant's high temperature section dedusting is a problem demanding prompt solution, but also there is no at present a kind of reasonable in design, can facilitate, solve flexibly and effectively the high temperature section dust arrester of high temperature section dust removal problem.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, and can facilitate, remove flexibly and effectively thermal power plant's flue high temperature section flue dust control device of high temperature section flue dust.
The technical scheme in the invention for solving the above technical problem is: this thermal power plant's flue high temperature section flue dust control device comprises boiler, SCR reactor, air preheater, deduster, air-introduced machine, desulfurizing tower, chimney and flue, described SCR reactor, air preheater, deduster, air-introduced machine and desulfurizing tower are installed on flue, this SCR reactor, air preheater, deduster, air-introduced machine and desulfurizing tower are arranged in order along flow of flue gas direction, the tail end of described flue is connected with chimney, its design feature is: also comprise dust separator and ash bucket, described flue comprises a horizontal flue and a vertical flue, one end of a described horizontal flue is connected with boiler, the other end of this horizontal flue is connected with one end of a vertical flue, described dust separator is arranged in a vertical flue, this dust separator and a vertical flue coordinate, described ash bucket is arranged on the bottom of a horizontal flue, this ash bucket be positioned at dust separator under, described ash bucket and dust separator coordinate.
As preferably, flue described in the utility model also comprises horizontal flue No. two, No. three horizontal flues, No. four horizontal flues, No. five horizontal flues, No. two vertical flues and No. three vertical flues, a described horizontal flue, a vertical flue, No. two horizontal flues, No. two vertical flues, No. three horizontal flues, No. three vertical flue is connected successively with No. four horizontal flue head and the tail, described SCR reactor is arranged on No. two vertical flues, described air preheater is arranged on No. three vertical flues, described deduster and air-introduced machine are installed on No. four horizontal flues, the tail end of described No. four horizontal flues is connected on desulfurizing tower, the two ends of described No. five horizontal flues are connected on desulfurizing tower and chimney.
As preferably, dust separator described in the utility model is U-shaped cyclone separator arrangement.
As preferably, the quantity of dust separator described in the utility model is at least two rows.
The utility model compared with prior art, have the following advantages and effect: reasonable in design, can facilitate, remove flexibly and effectively the flue dust in flue high temperature section, can in high temperature section, remove the soot dust granule that SCR denitration device and air preheater equipment are resulted in blockage, effectively guarantee security and the economy of SCR denitration device and air preheater.
Of the present utility model simple in structure, in a vertical flue before entering SCR reactor, add a set of dust separator, do not need boiler body to transform, therefore improvement cost is low, enforceability is strong, is easy to be extended and applied, and is conducive to improve the utilization rate of equipment.Control device in the utility model is innovated from structure, by existing equipment is improved, obtained good effect, though repacking degree is little, but effect is remarkable, from the angle to equipment modification, repacking degree is little, is more conducive to marketing, there is more thermal power plant to be ready to reequip, repacking cost is low, and the utilization rate of existing equipment is high, is conducive to low-carbon (LC), energy-saving and environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of thermal power plant's flue high temperature section flue dust control device in the utility model embodiment.
Fig. 2 is the structure for amplifying schematic diagram that the dust separator in the utility model embodiment is U-shaped cyclone separator arrangement, and this dust separator is two row's formula structures.
Fig. 3 is the structure for amplifying schematic diagram that the dust separator in the utility model embodiment is U-shaped cyclone separator arrangement, and this dust separator is three row's formula structures.
The specific embodiment
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1 to Fig. 3, thermal power plant's flue high temperature section flue dust control device in the present embodiment comprises boiler 1, dust separator 2, SCR reactor 3, air preheater 4, deduster 5, air-introduced machine 6, desulfurizing tower 7, chimney 8, ash bucket 9 and flue 10, wherein, dust separator 2 is U-shaped cyclone separator arrangement.
Flue 10 in the present embodiment comprises horizontal flue 11, No. two horizontal flues 12, No. three horizontal flues 13, No. four horizontal flues 14, No. five horizontal flues 15, vertical flue 16, No. two vertical flues 17 and No. three vertical flues 18.A horizontal flue 11 in the present embodiment, a vertical flue 16, No. two horizontal flues 12, No. two vertical flues 17, No. three horizontal flues 13, No. three vertical flue 18 is connected successively with No. four horizontal flue 14 head and the tail, the front end of a vertical flue 16 is connected with the tail end of a horizontal flue 11, the front end of No. two horizontal flues 12 is connected with the tail end of a vertical flue 16, the front end of No. two vertical flues 17 is connected with the tail end of No. two horizontal flues 12, the front end of No. three horizontal flues 13 is connected with the tail end of No. two vertical flues 17, the front end of No. three vertical flues 18 is connected with the tail end of No. three horizontal flues 13, the front end of No. four horizontal flues 14 is connected with the tail end of No. three vertical flues 18.
In the present embodiment, the front end of a horizontal flue 11 is connected with boiler 1, SCR reactor 3 is arranged on No. two vertical flues 17, air preheater 4 is arranged on No. three vertical flues 18, deduster 5 and air-introduced machine 6 are installed on No. four horizontal flues 14, the tail end of No. four horizontal flues 14 is connected on desulfurizing tower 7, and the two ends of No. five horizontal flues 15 are connected on desulfurizing tower 7 and chimney 8.As from the foregoing, the front end of the flue 10 in the present embodiment is connected with boiler 1, the tail end of flue 10 is connected with chimney 8, SCR reactor 3, air preheater 4, deduster 5, air-introduced machine 6 and desulfurizing tower 7 are installed on flue 10, and this SCR reactor 3, air preheater 4, deduster 5, air-introduced machine 6 and desulfurizing tower 7 are arranged in order along flow of flue gas direction.
Dust separator 2 in the present embodiment is arranged in a vertical flue 16, this dust separator 2 and a vertical flue 16 coordinate, be that dust separator 2 is the whole cross sections that are covered with vertical flue 16, make flue gas in vertical flue 16 can be all through dust separator 2, prevent flue gas in flue 10 not by the situation of dust separator 2 separation.Ash bucket 9 in the present embodiment is arranged on the bottom of a horizontal flue 11, this ash bucket 9 be positioned at dust separator 2 under, and ash bucket 9 and dust separator 2 coordinate, ash bucket 9 plays the dust of collecting dust separator 2 separation, when dust separator 2 by the dust separation in flue gas out after, dust can fall in ash bucket 9 under Action of Gravity Field.
Generally, the quantity of the dust separator 2 in the utility model is at least two rows, and a horizontal flue 11 and a vertical flue 16 can dock.
Basic principle of the present utility model is: the flue gas that boiler 1 burning produces is after a horizontal flue 11, first at a vertical flue 16, carry out inertial separation, remove after the particle that quality is larger, again by the dust separator 2 in a vertical flue 16, under the effect of the power such as inertia force, gravity and fluid drag force, substantially the bulky grain flue dust in flue gas can be removed completely, particularly to stopping up the flue dust of SCR reactor 3 and air preheater 4, be had the separating effect of highly significant.
In addition, it should be noted that, the specific embodiment described in this description, the shape of its parts and components, institute's title of being named etc. can be different, and the above content described in this description is only to the explanation of the utility model structure example.All equivalence variation or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (4)
1.Yi Zhong thermal power plant flue high temperature section flue dust control device, comprise boiler, SCR reactor, air preheater, deduster, air-introduced machine, desulfurizing tower, chimney and flue, described SCR reactor, air preheater, deduster, air-introduced machine and desulfurizing tower are installed on flue, this SCR reactor, air preheater, deduster, air-introduced machine and desulfurizing tower are arranged in order along flow of flue gas direction, the tail end of described flue is connected with chimney, it is characterized in that: also comprise dust separator and ash bucket, described flue comprises a horizontal flue and a vertical flue, one end of a described horizontal flue is connected with boiler, the other end of this horizontal flue is connected with one end of a vertical flue, described dust separator is arranged in a vertical flue, this dust separator and a vertical flue coordinate, described ash bucket is arranged on the bottom of a horizontal flue, this ash bucket be positioned at dust separator under, described ash bucket and dust separator coordinate.
2. thermal power plant according to claim 1 flue high temperature section flue dust control device, it is characterized in that: described flue also comprises horizontal flue No. two, No. three horizontal flues, No. four horizontal flues, No. five horizontal flues, No. two vertical flues and No. three vertical flues, a described horizontal flue, a vertical flue, No. two horizontal flues, No. two vertical flues, No. three horizontal flues, No. three vertical flue is connected successively with No. four horizontal flue head and the tail, described SCR reactor is arranged on No. two vertical flues, described air preheater is arranged on No. three vertical flues, described deduster and air-introduced machine are installed on No. four horizontal flues, the tail end of described No. four horizontal flues is connected on desulfurizing tower, the two ends of described No. five horizontal flues are connected on desulfurizing tower and chimney.
3. thermal power plant according to claim 1 and 2 flue high temperature section flue dust control device, is characterized in that: described dust separator is U-shaped cyclone separator arrangement.
4. thermal power plant according to claim 1 and 2 flue high temperature section flue dust control device, is characterized in that: the quantity of described dust separator is at least two rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149635.3U CN203848311U (en) | 2014-03-31 | 2014-03-31 | Smoke dust control device of flue high-temperature section of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149635.3U CN203848311U (en) | 2014-03-31 | 2014-03-31 | Smoke dust control device of flue high-temperature section of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203848311U true CN203848311U (en) | 2014-09-24 |
Family
ID=51561321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420149635.3U Expired - Lifetime CN203848311U (en) | 2014-03-31 | 2014-03-31 | Smoke dust control device of flue high-temperature section of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203848311U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944463A (en) * | 2016-06-27 | 2016-09-21 | 江苏瑞洁环境工程科技有限责任公司 | Energy-saving SCR denitration combined device |
| CN106268049A (en) * | 2016-08-12 | 2017-01-04 | 东南大学 | A kind of SCR denitration pre-dedusting device and method |
| CN108590788A (en) * | 2018-06-20 | 2018-09-28 | 华电电力科学研究院有限公司 | A kind of steam turbine of thermal power plant energy comprehensive utilization system |
-
2014
- 2014-03-31 CN CN201420149635.3U patent/CN203848311U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944463A (en) * | 2016-06-27 | 2016-09-21 | 江苏瑞洁环境工程科技有限责任公司 | Energy-saving SCR denitration combined device |
| CN106268049A (en) * | 2016-08-12 | 2017-01-04 | 东南大学 | A kind of SCR denitration pre-dedusting device and method |
| CN106268049B (en) * | 2016-08-12 | 2018-08-21 | 东南大学 | A kind of SCR denitration pre-dedusting device and method |
| CN108590788A (en) * | 2018-06-20 | 2018-09-28 | 华电电力科学研究院有限公司 | A kind of steam turbine of thermal power plant energy comprehensive utilization system |
| CN108590788B (en) * | 2018-06-20 | 2024-01-30 | 华电电力科学研究院有限公司 | Comprehensive utilization system for energy of steam turbine of thermal power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204574069U (en) | Coal fired power plant minimum discharge environmental protection island system | |
| CN104033921B (en) | A kind of device and method preventing ammonium hydrogen sulfate from blocking coal-burning boiler air preheater | |
| CN204005957U (en) | A kind of cooperation-removal system that realizes the minimum discharge of coal steam-electric plant smoke multi-pollutant | |
| CN103926833B (en) | A kind of selective catalytic reduction denitration device suction parameter defining method | |
| CN203848311U (en) | Smoke dust control device of flue high-temperature section of thermal power plant | |
| CN201719926U (en) | Flue gas dedusting system in pulverized coal fired boiler | |
| CN206055656U (en) | Fume afterheat water conservancy diversion heat-exchanger rig | |
| CN204438718U (en) | Residual heat from boiler fume drying brown coal system and boiler smoke system | |
| CN202212082U (en) | Pre-deduster for SCR (Selective Catalytic Reduction) smoke denitration of coal-fired boiler | |
| CN102350211B (en) | Three-stage desulfurization device for circulating fluidized bed boiler | |
| CN203478209U (en) | Double-low type boiler capable of cleanly combusting high-alkali-metal coal | |
| CN204121903U (en) | A kind of for the High Temperature Pre dust arrester before SCR denitration system | |
| CN104208958B (en) | A kind of turning pre-dedusting device for selective-catalytic-reduction denitrified system | |
| CN203564924U (en) | Comprehensive dust removal and desulfurization purification equipment for flue gas in cupola furnace | |
| CN203316011U (en) | Structure for improving coal-fired boiler tail smoke denitration input rate | |
| CN204987054U (en) | A hierarchical heat transfer device for wet flue gas desulfurization system | |
| CN206055666U (en) | Energy-conservation heat transfer flue device | |
| CN203963976U (en) | Be suitable for the coal-fired plant boiler system of underrun | |
| CN204665243U (en) | A kind of coal-burning boiler two-stage smoke processing system | |
| CN203927970U (en) | A kind of boiler exhaust gas denitrification apparatus | |
| CN203571723U (en) | Circulating fluidized bed boiler | |
| CN202973138U (en) | Smoke waste heat recycling and dust-removing device | |
| CN203478218U (en) | Compact type circulating fluidized bed boiler capable of cleanly combusting high-sodium coal | |
| CN203478215U (en) | Combustion system of four-corner tangential pulverized coal boiler | |
| CN201643886U (en) | Front-mounted flue gas-denitration dust pre-removing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ruan Jiongming Inventor after: Zhang Haizhen Inventor after: Liu Pengyuan Inventor before: Ruan Jiongming Inventor before: Zhang Haizhen Inventor before: Hao Jiangang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: RUAN JIONGMING ZHANG HAIZHEN HAO JIANGANG TO: RUAN JIONGMING ZHANG HAIZHEN LIU PENGYUAN |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |