CN103953939B - Wet desulphurization mechanism - Google Patents
Wet desulphurization mechanism Download PDFInfo
- Publication number
- CN103953939B CN103953939B CN201410174320.9A CN201410174320A CN103953939B CN 103953939 B CN103953939 B CN 103953939B CN 201410174320 A CN201410174320 A CN 201410174320A CN 103953939 B CN103953939 B CN 103953939B
- Authority
- CN
- China
- Prior art keywords
- elbow
- flue gas
- section
- cross
- former
- 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.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a kind of wet desulphurization mechanism, comprise former cigarette conducting element, flue gas heat-exchange unit, described flue gas heat-exchange unit is provided with former flue gas mouth, the cross section of its former flue gas mouth is rectangle, described former cigarette conducting element comprises the first elbow, the second elbow, the cross section of described the first elbow, the second elbow is rounded, and this first elbow and the second elbow are installed in the former flue gas mouth of flue gas heat-exchange unit. At the former flue gas mouth of flue gas heat-exchange unit, the first rounded elbow of cross section and the second elbow are set; flue gas can enter flue gas heat-exchange unit by the first elbow, the second elbow shunting; have in the first elbow, the second elbow the space of turning round fully; and its circular cross-section is less; there is good guide functions; whole flow field becomes more even; effectively improve the heat exchange efficiency of flue gas heat-exchange unit, eliminated traditional rectangular road body design deflector and easily torn to cause and anticorrosionly occur that crevice corrosion flue, runner stop up and shut down equivalent risk.
Description
Technical field
The present invention relates to thermal power generating technology field, particularly a kind of wet desulphurization mechanism.
Background technology
In the desulphurization system in thermal power plant, desulfurization GGH (flue gas heat-exchange unit) equipment is the important of wet desulphurizationEquipment, plays and utilizes former flue gas that the clean flue gas after desulfurization is heated, and exhaust gas temperature is reached on dew point,Alleviate the corrosion to clean flue and chimney, reduce the flue-gas temperature that enters absorption tower simultaneously, reduce in tower anticorrosionThe effect that requires of technology, the mounting arrangements height of GGH equipment is generally unsuitable too high, therefore in order to meetThe requirement of GGH apparatus arrangement, cigarette air channel often needs to take a sudden turn along the long limit of GGH, and traditional cigarette air channel is enteredRow zig zag adopts the rectangular guiding elbow mating with GGH conventionally, and as shown in Figure 1 and Figure 2, such is along GGHThe cross section length-width ratio of the rectangular guiding elbow 10 of long limit zig zag is more than or equal to 2, and elbow bending radiusLittle, be generally about the half on the long limit of GGH, there are the following problems for it: 1, flow field: this elbow is long along GGHWhile turning round in 90 °, limit, flue gas lateral deviation phenomenon is very serious, has a strong impact on GGH heat exchange efficiency, in order to allow the flow field canRelatively even, do not affect desulfurization GGH heat exchange efficiency, conventionally in body inside, road, deflector is set, but processAfter a period of time operation, the deflector of body inside, road tears repeatedly at flue gas, easily produce to tear to come off,Make anticorrosion of flue duct produce crack and cause boiler flue corrosion, when serious, stop up runner, cause compressor emergency shutdown, seriousHave influence on the safe and reliable operation of unit; 2, consumptive material: flat wide rectangular elbow consumptive material is huge, reinforcing rib setting andAll more complicated are installed; 3, resistance: by adopting FLUENT fluid simulation software simulation to calculate suchThe comparison of resistance that rectangular elbow is arranged is large, about 100Pa, and blower fan is large for overcoming this resistance power consumption waste.
Summary of the invention
Based on this, the invention reside in the defect that overcomes prior art, provide a kind of wet desulphurization mechanism, not onlyCan effectively improve the heat exchange efficiency of flue gas heat-exchange unit, and consumptive material is few, gives the resistance of flue gas little.
Its technical scheme is as follows:
One wet desulphurization mechanism, comprises former cigarette conducting element, flue gas heat-exchange unit, on described flue gas heat-exchange unit, establishesHave former flue gas mouth, the cross section of its former flue gas mouth is rectangle, and described former cigarette conducting element comprises the first elbow,Double section belt arm, the cross section of described the first elbow, the second elbow is rounded, and this first elbow and the second elbow are equalBe arranged on the former flue gas mouth of flue gas heat-exchange unit.
Its further technical scheme is as follows:
Described the first elbow comprises the first turnaround section, and this second elbow comprises the second turnaround section and with secondThe first linkage section that the first end of turnaround section is communicated with, the angle of turn of this first turnaround section and the second turnaround section is equalBe 90 degree, the first turnaround section and the first linkage section are arranged side by side at former flue gas mouth along the long limit of former flue gas mouth.
Described the second elbow also comprises the first introduction segment, the second end of described the first introduction segment and the second turnaround sectionBe communicated with.
The cross-sectional diameter of described the first elbow, the second elbow equates.
The cross-sectional diameter of described the first elbow, the second elbow is less than or equal to the width of former flue gas mouth.
The cross-sectional diameter sum of the cross-sectional diameter of described the first elbow and the second elbow is less than or equal to former flue gasThe length of mouth.
Described wet desulphurization mechanism, also comprises clean cigarette conducting element, and described flue gas heat-exchange unit is also provided with clean flue gasMouthful, the cross section of its Ash-tray mouth is rectangle, described clean cigarette conducting element comprises triple section arm, the 4th elbow,The cross section of described triple section arm, the 4th elbow is rounded, and this triple section arm and the 4th elbow are installed in cigaretteThe Ash-tray mouth of gas heat exchanger.
Described triple section arm comprises the 3rd turnaround section, and the 4th elbow comprises base-leg turn section and with the 4thThe second linkage section that the first end of turnaround section is communicated with, the angle of turn of the 3rd turnaround section and base-leg turn section is equalBe 90 degree, the first turnaround section and the second linkage section are arranged side by side at flue gas heat-exchange unit along the long limit of clean flue gas mouthClean flue gas mouth.
Described the 4th elbow also comprises the second introduction segment, the second end of described the second introduction segment and base-leg turn sectionBe communicated with.
The length-width ratio of described former flue gas mouth cross section is 1.8～2.5, the length-width ratio of described clean flue gas mouth cross sectionBe 1.8～2.5.
Advantage to aforementioned techniques scheme or principle describe below:
Above-mentioned wet desulphurization mechanism, arranges rounded first curved of cross section at the former flue gas mouth of flue gas heat-exchange unitHead and the second elbow, flue gas can enter flue gas heat-exchange unit by the first elbow, the second elbow shunting, firstThere is the space of turning round fully elbow, the second elbow, and its circular cross-section is less, have good water conservancy diversion and doWith, therefore whole flow field becomes more even, make the former flue gas Kou Chu flow field of flue gas heat-exchange unit obtain very largeImprove, can effectively improve the heat exchange efficiency of flue gas heat-exchange unit, also eliminated the body design of traditional rectangular road simultaneously and ledStream plate is easily torn and is caused anticorrosion crevice corrosion flue, the runner obstruction shutdown equivalent risk of occurring; And adopt firstElbow traditional rectangular guiding elbow relative to the required consumptive material of the second elbow greatly reduces; By adopting FLUENTFluid simulation software simulation calculates the first elbow of this wet desulphurization mechanism and the resistance of the second elbowLittle, about 20Pa, than the few 80Pa of former rectangular guiding elbow, can effectively reduce energy consumption.
Brief description of the drawings
Fig. 1 is the structural representation of traditional wet desulphurization mechanism;
Fig. 2 is the schematic side view of traditional wet desulphurization mechanism;
The structural representation of the wet desulphurization mechanism described in Fig. 3 embodiment of the present invention;
The schematic side view of the wet desulphurization mechanism described in Fig. 4 embodiment of the present invention;
Description of reference numerals:
10, rectangular guiding elbow, 100, flue gas heat-exchange unit, 110, former flue gas mouth, 120, clean flue gas mouth,210, the first elbow, 212, the first turnaround section, 220, the second elbow, 222, the second turnaround section, 224,The first linkage section, 226, the first introduction segment, 310, triple section arm, 320, the 4th elbow.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated:
As shown in Figure 3,4, a kind of wet desulphurization mechanism, comprises former cigarette conducting element, flue gas heat-exchange unit 100,Described flue gas heat-exchange unit 100 is provided with former flue gas mouth 110, and the cross section of its former flue gas mouth 110 is rectangle, instituteState former cigarette conducting element and comprise the first elbow 210, the second elbow 220, described the first elbow 210, the second elbow220 cross section is rounded, and this first elbow 210 and the second elbow 220 are installed in flue gas heat-exchange unit 100Former flue gas mouth 110.
Wet desulphurization mechanism described in the present embodiment, arranges transversal at the former flue gas mouth 110 of flue gas heat-exchange unit 100The first elbow 210 that face is rounded and the second elbow 220, flue gas can pass through the first elbow 210, the second elbow220 shuntings enter flue gas heat-exchange unit 100, have fully and turn round at the first elbow 210, the second elbow 220 placesSpace, and its circular cross-section is less, has good guide functions, therefore whole flow field becomes more even,Former flue gas mouth 110 flow fields, place of flue gas heat-exchange unit 100 are very significantly improved, can effectively improve flue gasThe heat exchange efficiency of heat exchanger 100, also eliminated simultaneously traditional rectangular road body design deflector easily tear cause anti-Corruption occurs that crevice corrosion flue, runner stop up shutdown equivalent risk; And adopt the first elbow 210 and second curved220 required consumptive materials traditional rectangular water conservancy diversion elbow relatively as shown in Figure 1 and Figure 2 greatly reduces; By adoptingFLUENT fluid simulation software simulation calculates the first elbow 210 and second elbow of this wet desulphurization mechanism220 resistance is less, and about 20Pa, than the few 80Pa of former rectangular guiding elbow, can effectively reduce energy consumption.
Described the first elbow 210 comprises the first turnaround section 212, and this second elbow 220 comprises the second turnaround section222 and the first linkage section 224 of being communicated with the first end of the second turnaround section 222, this first turnaround section 212Be 90 degree with the angle of turn of the second turnaround section 222, the first turnaround section 212 and the first linkage section 224 edgesThe long limit of former flue gas mouth 110 is arranged side by side at former flue gas mouth 110. Described the second elbow 220 also comprises that first leadsThe section of entering 226, described the first introduction segment 226 is communicated with the second end of the second turnaround section 222. As shown in Figure 4,On the same cross section of former cigarette conducting element, as cross section vertical with former flue gas mouth 110 in Fig. 4, the first turnaround section212 are less than or equal to the first introduction segment 226 away from a side of flue gas heat-exchange unit 100 and the distance of former flue gas mouth 110Near a side of flue gas heat-exchange unit 100 and the distance of former flue gas mouth 110, the first elbow 210 is by firstTurnaround section 212 is directly carried out 90 ° of turnings, and the second elbow 220 is by the first linkage section 224 and former flue gas mouthAfter 110 connections, carry out 90 ° of turnings by the second turnaround section 222 again, and then by the first introduction segment 226Derive, such the first linkage section 224 can reserve one section allows bit space for the second turnaround section 222 is installed, and keeps awayExempt from the first elbow 210 and the second elbow 220 interferes.
For ensureing the uniformity in former flue gas mouth 110 flow fields, the first elbow 210, the second elbow described in the present embodiment220 cross-sectional diameter is equal, and flue gas can be all after passing through the first elbow 210, the second elbow 220 shuntings like thisEven enters flue gas heat-exchange unit 100 from former flue gas mouth 110.
For avoiding flue gas to reveal, the cross-sectional diameter of described the first elbow 210, the second elbow 220 is less than or equal toThe width of former flue gas mouth 110. The cross-sectional diameter of described the first elbow 210 and the second elbow 220 transversalFace diameter sum is less than or equal to the length of former flue gas mouth 110.
Described wet desulphurization mechanism, also comprises clean cigarette conducting element, and described flue gas heat-exchange unit 100 is also provided with onlyFlue gas mouth 120, the cross section of its Ash-tray mouth is rectangle, described clean cigarette conducting element comprise triple section arm 310,The 4th elbow 320, the cross section of described triple section arm 310, the 4th elbow 320 is rounded, this triple section arm310 and the 4th elbow 320 be installed in the Ash-tray mouth of flue gas heat-exchange unit 100. Clean flue gas after desulfurization like thisBe diverted to triple section arm 310, the 4th elbow 320 by clean flue gas mouth 120, each cigarette wind uniformly can flowIn deferent, and the cross section of triple section arm 310, the 4th elbow 320 is rounded, can effectively reduce and manufactureThis.
Described triple section arm 310 comprises the 3rd turnaround section, the 4th elbow 320 comprise base-leg turn section, withAnd the second linkage section being communicated with the first end of base-leg turn section, the turning of the 3rd turnaround section and base-leg turn sectionBending angle is 90 degree, and the first turnaround section 212 and the second linkage section are established side by side along the long limit of clean flue gas mouth 120Put the clean flue gas mouth 120 at flue gas heat-exchange unit 100. Described the 4th elbow 320 also comprises the second introduction segment, instituteStating the second introduction segment is communicated with the second end of base-leg turn section. With reference to Fig. 4, the clean such setting of cigarette conducting element is alsoInterfere for fear of triple section arm 310 and the 4th elbow 320.
Described in the present embodiment, the length-width ratio of former flue gas mouth 110 cross sections is 1.8～2.5, described clean flue gas mouth 120The length-width ratio of cross section is 1.8～2.5, as shown in Figure 3, and former flue gas mouth 110 and clean flue gas described in the present embodimentMouth 120 is arranged on the same side.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed,But can not therefore be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that for this areaThose of ordinary skill, without departing from the inventive concept of the premise, can also make some distortion andImprove, these all belong to protection scope of the present invention.
Claims (10)
1. a wet desulphurization mechanism, is characterized in that, comprises former cigarette conducting element, flue gas heat-exchange unit, instituteState flue gas heat-exchange unit and be provided with former flue gas mouth, the cross section of its former flue gas mouth is rectangle, described former cigarette conducting elementComprise the first elbow, the second elbow, the cross section of described the first elbow, the second elbow is rounded, and this is first years oldElbow and the second elbow are installed in the former flue gas mouth of flue gas heat-exchange unit.
2. wet desulphurization according to claim 1 mechanism, is characterized in that described the first elbow bagDraw together the first turnaround section, this second elbow comprises the second turnaround section and is communicated with the first end of the second turnaround sectionThe first linkage section, the angle of turn of this first turnaround section and the second turnaround section is 90 degree, first turnSection is arranged side by side at former flue gas mouth along the long limit of former flue gas mouth with the first linkage section.
3. wet desulphurization according to claim 2 mechanism, is characterized in that, described the second elbow alsoComprise the first introduction segment, described the first introduction segment is communicated with the second end of the second turnaround section.
4. wet desulphurization according to claim 1 mechanism, is characterized in that, described the first elbow,The cross-sectional diameter of the second elbow equates.
5. wet desulphurization according to claim 4 mechanism, is characterized in that, described the first elbow,The cross-sectional diameter of the second elbow is less than or equal to the width of former flue gas mouth.
6. wet desulphurization according to claim 5 mechanism, is characterized in that, described the first elbowThe cross-sectional diameter sum of cross-sectional diameter and the second elbow is less than or equal to the length of former flue gas mouth.
7. wet desulphurization according to claim 2 mechanism, is characterized in that, it also comprises that clean cigarette leadsStream part, described flue gas heat-exchange unit is also provided with clean flue gas mouth, and the cross section of its clean flue gas mouth is rectangle, described cleanCigarette conducting element comprises triple section arm, the 4th elbow, and the cross section of described triple section arm, the 4th elbow is rounded,This triple section arm and the 4th elbow are installed in the clean flue gas mouth of flue gas heat-exchange unit.
8. wet desulphurization according to claim 7 mechanism, is characterized in that described triple section arm bagDraw together the 3rd turnaround section, the 4th elbow comprises base-leg turn section and is communicated with the first end of base-leg turn sectionThe second linkage section, the angle of turn of the 3rd turnaround section and base-leg turn section is 90 degree, first turnSection is arranged side by side the clean flue gas mouth at flue gas heat-exchange unit with the second linkage section along the long limit of clean flue gas mouth.
9. wet desulphurization according to claim 8 mechanism, is characterized in that, described the 4th elbow alsoComprise the second introduction segment, described the second introduction segment is communicated with the second end of base-leg turn section.
10. wet desulphurization according to claim 7 mechanism, is characterized in that described former flue gas mouth horizontal strokeThe length-width ratio in cross section is 1.8～2.5, and the length-width ratio of described clean flue gas mouth cross section is 1.8～2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174320.9A CN103953939B (en) | 2014-04-28 | 2014-04-28 | Wet desulphurization mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174320.9A CN103953939B (en) | 2014-04-28 | 2014-04-28 | Wet desulphurization mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953939A CN103953939A (en) | 2014-07-30 |
| CN103953939B true CN103953939B (en) | 2016-05-11 |
Family
ID=51331251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410174320.9A Active CN103953939B (en) | 2014-04-28 | 2014-04-28 | Wet desulphurization mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103953939B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791821B (en) * | 2015-05-06 | 2018-01-26 | 中国能源建设集团广东省电力设计研究院有限公司 | The power plant outlet of deduster four and the rear air and gas system combination layout structure of biserial air-introduced machine |
| CN104879765B (en) * | 2015-06-10 | 2018-01-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Air and gas system combination layout structure after the six outlet biserials with flue gas waste heat recovery apparatus |
| CN104896491B (en) * | 2015-06-10 | 2018-01-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Air and gas system combination layout structure after the four outlet biserials with flue gas waste heat recovery apparatus |
| CN105042624B (en) * | 2015-08-20 | 2017-06-16 | 中国能源建设集团广东省电力设计研究院有限公司 | The guiding device of air and gas system and its cold Secondary Air entrance of air preheater |
| CN105351954A (en) * | 2015-11-25 | 2016-02-24 | 中国能源建设集团广东省电力设计研究院有限公司 | Flue system for outlet of tower-type furnace air pre-heater of thermal power plant |
| CN105333451A (en) * | 2015-11-25 | 2016-02-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Cold air feeding device for air preheater of thermal power plant |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773597Y (en) * | 2005-02-21 | 2006-04-19 | 南京圣诺热管有限公司 | Integrated hot-pipe gas-gas heat exchanger for desulfurizing smoke |
| CN101832625B (en) * | 2010-05-25 | 2012-04-25 | 西安建筑科技大学 | Low-resistance square elbow |
| CN201992672U (en) * | 2011-02-24 | 2011-09-28 | 杭州奥普博朗尼厨卫科技有限公司 | Fume discharge connector of range hood and public flue |
-
2014
- 2014-04-28 CN CN201410174320.9A patent/CN103953939B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103953939A (en) | 2014-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103953939B (en) | Wet desulphurization mechanism | |
| CN202915385U (en) | Mixed type smoke purifying and heating device | |
| CN206055656U (en) | Fume afterheat water conservancy diversion heat-exchanger rig | |
| CN203784974U (en) | Smoke flue of sintering desulfuration system and smoke guide device | |
| CN108800174A (en) | The deashing device and method of novel low low-level (stack-gas) economizer | |
| CN204911221U (en) | Unequal venturi in convergent flaring angle restraints and CFB absorption tower thereof | |
| CN201819196U (en) | Vortex heat pump for heat recovery of fume gas and heat recovery system | |
| CN204513372U (en) | Coal feeder for circular fluidized bed boiler | |
| CN203329616U (en) | Oxidation air conveying device for desulfurization absorption tower of thermal power plant | |
| CN107308792A (en) | A kind of wet desulphurization gypsum rain eliminating device | |
| CN201992682U (en) | Cold end heat-accumulating plate corrosion resistant system for rotary air preheater | |
| CN203869070U (en) | Wet desulphurization mechanism | |
| CN203869066U (en) | Smoke and air flue and three-in-one flow collecting pipe thereof | |
| CN207085639U (en) | A kind of comprehensive wet scrubber | |
| CN204943883U (en) | A kind of heating boiler of hot tail gas Heat Treatment device | |
| CN203923247U (en) | A kind of device that improves oxygen rifle nitrogen envelope effect | |
| CN206996851U (en) | A kind of wet electrical dust precipitator inlet flue duct water conservancy diversion, current equalizer | |
| CN207797101U (en) | A kind of wet desulphurization chimney heating system | |
| CN106196121B (en) | Fume afterheat water conservancy diversion heat-exchanger rig | |
| CN206996226U (en) | A kind of flue gas during smelting desulfation dust-extraction device with flue gas cool-down mechanism | |
| CN201094899Y (en) | Superstructure of absorption tower body | |
| CN101607161A (en) | Soot processing device | |
| CN204816193U (en) | Flue gas guiding device on desulfurization absorption tower | |
| CN204699570U (en) | A kind of integral type desulfurizing tower with flue gas structure | |
| CN201715538U (en) | Adjustable offset lateral diversion grid for chain grate industrial boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Guangdong Electric Power Design Institute of CEEC |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE TO: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |