CN106423564B - Cathode hanging system for tensioning-free device of wet dust collector - Google Patents
Cathode hanging system for tensioning-free device of wet dust collector Download PDFInfo
- Publication number
- CN106423564B CN106423564B CN201611051263.0A CN201611051263A CN106423564B CN 106423564 B CN106423564 B CN 106423564B CN 201611051263 A CN201611051263 A CN 201611051263A CN 106423564 B CN106423564 B CN 106423564B
- Authority
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- China
- Prior art keywords
- cathode
- main beam
- frame
- dust collector
- wet dust
- 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.)
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- 239000000428 dust Substances 0.000 title claims abstract description 31
- 239000012212 insulator Substances 0.000 claims abstract description 22
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/86—Electrode-carrying means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Electrostatic Separation (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a cathode hanging system, in particular to a cathode hanging system for a tensioning-free device of a wet dust collector, and belongs to the technical field of tail flue gas treatment of a power station boiler. The wall penetrating protection device (2) in the system is welded on two sides of a wall plate of a shell of the wet dust collector, an insulator box suspension system (1) is arranged on the wall penetrating protection device (2), an upper cathode main beam (3) is arranged between the insulator box suspension systems (1), an upper cathode frame (4) is hung on the lower portion of the upper cathode main beam (3), a lower cathode frame (6) is hung on the upper cathode main beam (3) through a hanging rod (5), and a cathode wire (10) is arranged between the upper cathode frame (4) and the lower cathode frame (6). The system simplifies the process equipment, saves the engineering cost, improves the stability of hanging, and reduces the overhaul and maintenance engineering quantity and the maintenance cost.
Description
Technical Field
The invention relates to a cathode hanging system, in particular to a cathode hanging system for a tensioning-free device of a wet dust collector, and belongs to the technical field of tail flue gas treatment of a power station boiler.
Background
The wet dust collector is a new dust collecting equipment for treating trace dust and micro particles, and is applied to the chemical industry for removing acid mist for many years, and the basic working principle of the wet dust collector is the same as that of the dry dust collector. The lower part of the conventional dust remover is generally provided with a tensioning device except for a hanging system of the top insulator box. The wet dust collector of the utility boiler is generally arranged behind the wet desulfurizing tower and is used for treating the wet flue gas after desulfurization. Because of the working environment of wet flue gas, the setting of the tensioning device can increase the risk of dew and creepage of a cathode system, the process is complex, and the cost is high. And the wet dust collector reactor of the utility boiler has larger size and poor anti-sloshing performance of the tensioning device.
Disclosure of Invention
The invention aims to provide a cathode hanging system for a tension-free device of a wet dust collector. The system simplifies the process equipment, saves the engineering cost, improves the stability of hanging, and reduces the overhaul and maintenance engineering quantity and the maintenance cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
the cathode hanging system for the tension-free device of the wet dust collector comprises an insulator box hanging system, a wall-penetrating protection device, an upper cathode main beam, an upper cathode frame, a suspender, a lower cathode frame and a cathode wire. The wall penetrating protection device is welded on two sides of a wall plate of a shell of the wet dust collector, an insulator box suspension system is arranged on the wall penetrating protection device, an upper cathode main beam is arranged between the insulator box suspension systems, an upper cathode frame is hung on the lower portion of the upper cathode main beam, a lower cathode frame is hung on the upper cathode main beam through a hanging rod, and a cathode wire is arranged between the upper cathode frame and the lower cathode frame.
The lower cathode main beam is hung on the lower portion of the lower cathode frame, the lower cathode frame is stabilized by the hanging rod and the lower cathode main beam, the setting of a lower tensioning device with poor safety coefficient is canceled, and the hanging stability of the wet dust collector is improved.
The system is further provided with a first connecting part and a second connecting part, the upper cathode main beam is hung with an upper cathode frame through the first connecting part, the upper cathode main beam is connected with a hanging rod through the second connecting part, and the lower cathode main beam is hung with a lower cathode main beam through the first connecting part.
The system is also provided with lifting lugs, and two ends of the cathode wire are fixed on the upper cathode frame and the lower cathode frame through the lifting lugs, so that the center of the cathode wire is ensured to be hung vertically.
The cathode wire and the lifting lug are fixed through the connecting device, the connecting hole at the upper end of the cathode wire is a round hole, and the connecting hole at the lower end is a waist-shaped hole. The connecting device is a connecting bolt and a connecting nut, and the connecting nut is a nested locking nut, so that the nut is prevented from loosening.
The upper cathode main beam and the lower cathode main beam are made of carbon steel and are externally coated with FRP and/or 2205. The 2205 has good corrosion resistance, effectively prevents wet flue gas from corroding equipment, and prolongs the service lives of the upper cathode main beam and the lower cathode main beam.
The diameter of the suspender is 30-45 mm, the thickness is more than or equal to 3mm, and the suspender is 2205.
The upper surface of the upper cathode main beam is flatly paved with a conductive device which mainly plays a role in conduction, and the length of the conductive device is equal to that of the upper cathode main beam.
Compared with the prior art, the design of the tensioning device is omitted, the risk of dewing and creepage of the cathode system is avoided, and compared with the prior art, the redesigned cathode hanging system simplifies process equipment, saves engineering cost, improves hanging stability, reduces 25% of overhaul and maintenance engineering quantity and reduces 21% of maintenance cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a portion of the structure of the present invention;
FIG. 3 is a schematic view of a portion of the structure of the present invention;
FIG. 4 is a schematic view of the structure of the lifting lug in the invention;
fig. 5 is a schematic structural view of the connecting device in the present invention.
Meaning of reference numerals: 1-insulator box suspension system, 2-through-wall protection device, 3-upper cathode girder, 4-upper cathode frame, 5-jib, 6-lower cathode frame, 7-lower cathode girder, 8-connecting device, 9-lug, 10-negative pole line, 11-electrically conductive device, 12-first connecting portion, 13-second connecting portion.
The invention is further described below with reference to the drawings and the detailed description.
Detailed Description
Example 1 of the present invention: as shown in fig. 1 to 5, the through-wall protection device 2 is welded on two sides of the wall plate of the wet dust collector shell, the through-wall protection device 2 is provided with an insulator box suspension system 1, an upper cathode main beam 3 is arranged between the insulator box suspension systems 1, an upper cathode frame 4 is hung on the lower portion of the upper cathode main beam 3, a lower cathode frame 6 is hung on the upper cathode main beam 3 through a hanging rod 5, and a cathode wire 10 is arranged between the upper cathode frame 4 and the lower cathode frame 6. The upper surface of the upper cathode main beam 3 is also paved with a conductive device 11 made of stainless steel, which mainly plays a conductive role, and the length of the conductive device 11 is equal to that of the upper cathode main beam 3. The diameter of the suspender 5 is 40mm, the thickness is 4mm, and the material is 2205. The specification of the cathode wire 10 is phi 22 x 2mm, the needling specification of the upper part is phi 3 x 16mm, the needling bolts are resistance welded at 120 DEG, and the needling spacing is 25mm. The lower cathode main beam 7 is hung on the lower portion of the lower cathode frame 6, the lower cathode frame 6 is stabilized by the suspender 5 and the lower cathode main beam 7, the setting of a lower tensioning device with poor safety coefficient is canceled, and the hanging stability of the wet dust collector is improved. The system is also provided with a first connecting part 12 and a second connecting part 13, the upper cathode main beam 3 is hung with the upper cathode main beam 4 through the first connecting part 12, the upper cathode main beam 3 is connected with the hanging rod 5 through the second connecting part 13, and the lower cathode main beam 7 is hung with the lower cathode main beam 6 through the first connecting part 12. The upper cathode main beam 3 and the lower cathode main beam 7 are made of carbon steel and are externally coated with 2205. 2205 has good corrosion resistance, effectively prevents wet flue gas from corroding equipment, and prolongs the service life of the upper cathode main beam 3 and the lower cathode main beam 7. The system is also provided with lifting lugs 9, and both ends of the cathode wire 10 are fixed on the upper cathode frame 4 and the lower cathode frame 6 through the lifting lugs 9. The cathode line 10 and the lifting lug 9 are fixed through the connecting device 8, the connecting hole at the upper end of the cathode line 10 is a round hole, the connecting hole at the lower end is a waist-shaped hole, and the hole type design is convenient for adjusting the vertical distance of the cathode line 10. The connecting device 8 is a connecting bolt and nut, and the connecting nut is a nested locking nut, so that the nut is prevented from loosening.
Example 2: as shown in fig. 1, the cathode hanging system for the tension-free device of the wet dust collector comprises an insulator box hanging system 1, a through-wall protection device 2, an upper cathode main beam 3, an upper cathode frame 4, a suspender 5, a lower cathode frame 6 and a cathode wire 10. The wall penetrating protection device 2 is welded on two sides of a wall plate of a shell of the wet dust collector, an insulator box suspension system 1 is arranged on the wall penetrating protection device 2, an upper cathode girder 3 is arranged between the insulator box suspension systems 1, an upper cathode frame 4 is hung on the lower portion of the upper cathode girder 3, a lower cathode frame 6 is hung on the upper cathode girder 3 through a hanging rod 5, and a cathode wire 10 is arranged between the upper cathode frame 4 and the lower cathode frame 6.
Example 3: as shown in fig. 1 and 2, the through-wall protection device 2 is welded on two sides of the wall plate of the wet dust collector shell, the through-wall protection device 2 is provided with an insulator box suspension system 1, an upper cathode main beam 3 is arranged between the insulator box suspension systems 1, an upper cathode frame 4 is hung on the lower portion of the upper cathode main beam 3, a lower cathode frame 6 is hung on the upper cathode main beam 3 through a hanging rod 5, and a cathode wire 10 is arranged between the upper cathode frame 4 and the lower cathode frame 6. The lower cathode main beam 7 is hung on the lower portion of the lower cathode frame 6, the lower cathode frame 6 is stabilized by the suspender 5 and the lower cathode main beam 7, the setting of a lower tensioning device with poor safety coefficient is canceled, and the hanging stability of the wet dust collector is improved. The system is also provided with a first connecting part 12 and a second connecting part 13, the upper cathode main beam 3 is hung with the upper cathode main beam 4 through the first connecting part 12, the upper cathode main beam 3 is connected with the hanging rod 5 through the second connecting part 13, and the lower cathode main beam 7 is hung with the lower cathode main beam 6 through the first connecting part 12.
The working process of the invention comprises the following steps: the rectifier transformer is arranged on the insulator box suspension system 1, and the rectifier transformer outputs high-voltage electricity to be transmitted to the insulator box suspension system 1 in an insulating manner, the insulator box suspension system 1 hangs an upper cathode girder 3, the upper cathode girder 3 hangs an upper cathode frame 4 and a lower cathode frame 6, and a cathode wire 10 is positioned between the upper cathode frame 4 and the lower cathode frame 6, so that the high-voltage electricity is sequentially transmitted to the cathode wire 10 through the insulator box suspension system 1, the upper cathode girder 3, the upper cathode frame 4 and the lower cathode frame 6. The cathode line 10 realizes a tip discharge under the action of high voltage to form a non-uniform electrostatic field, and when dust particles pass through the electrostatic field, the particles are charged and trapped under the action of the electric field. Meanwhile, the weight of the whole system and equipment is transferred to the wet dust collector body through the through-wall protection device 2 by means of the insulator box suspension system 1, and the weight is borne by means of the body steel structure.
Claims (5)
1. The cathode hanging system for the tension-free device of the wet dust collector is characterized by comprising an insulator box hanging system (1), a wall penetrating protection device (2), an upper cathode main beam (3), an upper cathode frame (4), a suspender (5), a lower cathode frame (6) and a cathode wire (10); the wall penetrating protection device (2) is welded on two sides of a wall plate of a shell of the wet dust collector, an insulator box suspension system (1) is arranged on the wall penetrating protection device (2), an upper cathode main beam (3) is arranged between the insulator box suspension systems (1), an upper cathode frame (4) is hung on the lower portion of the upper cathode main beam (3), a lower cathode frame (6) is hung on the upper cathode main beam (3) through a hanging rod (5), and a cathode wire (10) is arranged between the upper cathode frame (4) and the lower cathode frame (6); the lower part of the lower cathode frame (6) is also hung with a lower cathode girder (7); the cathode wire is also provided with lifting lugs (9), and two ends of the cathode wire (10) are fixed on the upper cathode frame (4) and the lower cathode frame (6) through the lifting lugs (9); the cathode wire (10) and the lifting lug (9) are fixed through a connecting device (8).
2. The cathode suspension system for a tension-free device of a wet dust collector according to claim 1, further comprising a first connecting portion (12) and a second connecting portion (13), wherein the upper cathode main beam (3) is suspended with an upper cathode frame (4) through the first connecting portion (12), the upper cathode main beam (3) is connected with a boom (5) through the second connecting portion (13), and the lower cathode main beam (7) is suspended with a lower cathode frame (6) through the first connecting portion (12).
3. The cathode hanging system for a tension-free device of a wet dust collector according to claim 2, wherein the upper cathode main beam (3) and the lower cathode main beam (7) are made of carbon steel for external application FRP and/or 2205.
4. The cathode hanging system for a tension-free device of a wet dust collector according to claim 3, wherein the diameter of the hanging rod (5) is 30-45 mm, the thickness is more than or equal to 3mm, and the material is 2205.
5. The cathode hanging system for a tension-free device of a wet dust collector according to claim 1, wherein the upper surface of the upper cathode main beam (3) is tiled with a conductive device (11), and the length of the conductive device (11) is equal to the length of the upper cathode main beam (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051263.0A CN106423564B (en) | 2016-11-24 | 2016-11-24 | Cathode hanging system for tensioning-free device of wet dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051263.0A CN106423564B (en) | 2016-11-24 | 2016-11-24 | Cathode hanging system for tensioning-free device of wet dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106423564A CN106423564A (en) | 2017-02-22 |
| CN106423564B true CN106423564B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611051263.0A Active CN106423564B (en) | 2016-11-24 | 2016-11-24 | Cathode hanging system for tensioning-free device of wet dust collector |
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| CN (1) | CN106423564B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107138281A (en) * | 2017-07-14 | 2017-09-08 | 赵萍 | A kind of cage cathode hanger device |
| CN108144751A (en) * | 2018-02-01 | 2018-06-12 | 江苏中建材环保研究院有限公司 | A kind of electric precipitator cathode line fixed structure |
| EP4007658A1 (en) | 2019-08-01 | 2022-06-08 | Infinite Cooling Inc. | Systems and methods for collecting fluid from a gas stream |
| US11123752B1 (en) | 2020-02-27 | 2021-09-21 | Infinite Cooling Inc. | Systems, devices, and methods for collecting species from a gas stream |
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