CN107042158B - A kind of wet cottrell with function of recovering waste heat - Google Patents
A kind of wet cottrell with function of recovering waste heat Download PDFInfo
- Publication number
- CN107042158B CN107042158B CN201611182551.XA CN201611182551A CN107042158B CN 107042158 B CN107042158 B CN 107042158B CN 201611182551 A CN201611182551 A CN 201611182551A CN 107042158 B CN107042158 B CN 107042158B
- Authority
- CN
- China
- Prior art keywords
- air flow
- flow method
- disk
- pipe network
- waste heat
- 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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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
- B03C3/36—Controlling flow of gases or vapour
- B03C3/361—Controlling flow of gases or vapour by static mechanical means, e.g. deflector
- B03C3/363—Controlling flow of gases or vapour by static mechanical means, e.g. deflector located before the filter
-
- 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
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/49—Collecting-electrodes tubular
-
- 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
- B03C3/66—Applications of electricity supply techniques
- B03C3/70—Applications of electricity supply techniques insulating in electric separators
-
- 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
- B03C3/74—Cleaning the electrodes
- B03C3/78—Cleaning the electrodes by washing
Abstract
The present invention relates to a kind of wet cottrells with function of recovering waste heat, including housing, gas inlet is provided on housing, exhanst gas outlet and discharge outlet, insulation room is fixedly mounted in housing tip, top is fixedly mounted with air flow method pipe network disk inside housings, water spray disk is installed in the lower section of air flow method pipe network disk, the conductive sunpender installed by the insulation room is connect after passing through air flow method pipe network disk and water spray disk with the netted upper group beam of disk, cathode line group is installed in upper group beam lower surface, tubular type anode unit is set in cathode line group, air flow method porous plate is installed in the lower section of tubular anode group, enclosure interior is separated out the flue gas ash removal space at middle part with air flow method porous plate by air flow method pipe network disk.Present invention optimizes whole deduster structures, and air flow method with waste heat recovery is combined, improves the versatility of equipment, and installation and debugging is made to have obtained good improvement.
Description
Technical field
The invention belongs to electrostatic precipitation technology field, specifically a kind of wet cottrell with function of recovering waste heat.
Background technology
《Emission standards of air pollutants for coal-fired》GB13223-2011 require the concentration of key area soot emissions≤
20mg/Nm3, some provinces more strictly propose concentration≤5mg/Nm of the concept of " ultra-clean discharge ", i.e. soot emissions3.Some
Wet cottrell this equipment is installed successively by thermal power plant, chemical plant and relevant small scall coal-fired boiler producer, to meet
Country and local requirements.Some factories use the ammonia process of desulfurization, and most of particulate matter in flue gas is the gas that desulphurization system generates
Colloidal sol causes dust concentration to reach nearly 100mg/Nm3Even higher, it is difficult to reach smoke dust discharge concentration to depend merely on level-one electric precipitator
To national requirements, it is therefore desirable to install wet cottrell additional after desulphurization system.The dedusting of general wet cottrell
Process is as follows：
(1) high voltage from high voltage power supply is applied in cathode line, and cathode ray bur generates point discharge, and is formed quiet
Electric field；
(2) dust in the flue gas of electric field is flowed through, is discharged by prickle and generates Ion Charged；
(3) dust of electrification under electric field force effect, is collected on anode inside pipe wall；
(4) dust being collected on anode inside pipe wall is washed away by flow.
Temperature is at 70-90 DEG C after the desulfurizing tower of upstream for flue gas, and the ecotopia temperature of anode tube exists during normal operation
50-60 DEG C, if the excessively high service life that can influence anode tube of temperature, lead to its deformation, and then reduce efficiency of dust collection.Also, its
Maintenance cost is higher, then installation difficulty is larger.Therefore, a kind of deduster structure is designed, is ensuring deduster safe and stable operation
On the basis of, and it is necessary that can extend service life of equipment.
Invention content
The purpose of the present invention is in view of the deficiencies of the prior art, and propose a kind of wet electrostatic with function of recovering waste heat
Deduster.
The present invention solves its technical problem and following technical scheme is taken to realize：
A kind of wet cottrell with function of recovering waste heat, including cylindrical shell, is equipped in the middle part of housing tip
Gas inlet, insulation room is fixed in the both sides of gas inlet respectively, and discharge outlet is equipped in the bottom end of housing, right in the lower part of the housing
Exhanst gas outlet is provided on side wall, inside housings top be fixed be made of connecting pipe interconnection with enclosure interior diameter
Corresponding air flow method pipe network disk, the water inlet of air flow method pipe network disk are packed on the outside of housing right side wall, air flow method
The water outlet of pipe network disk is packed on the outside of housing left side wall, is equipped with below air flow method pipe network disk by connecting pipe
The water spray disk that interconnection is formed is equipped at intervals with multiple hole for water sprayings, water spray circle in the lower section haul distance for forming water spray disk pipeline
The water inlet of disk is packed on the outside of housing right side wall, and conductive sunpender straight down is mounted in described two insulation rooms,
Conductive sunpender is extended to after being each passed through the gap of air flow method pipe network disk and disk of spraying water straight down under water spray disk
Side is equipped with the netted upper group beam of disk being made of the braiding of conductor metal stick in the lower end of conductive sunpender, in upper group beam
Lower surface on it is even the cathode line group that is made of more cathode lines straight down is installed away from interval, in the lower part of cathode line group
End is equipped with the lower part group beam identical with upper group girder construction, is fixedly mounted in the inner walls below upper group beam and housing electricity
The orificed anode collar tie beam of connection is fixedly mounted with section as honeycomb structure and the tubular anode of upper and lower opening inside orificed anode collar tie beam
Group, each section in tubular anode group are passed through to be both provided with a cathode line in the pipe of regular hexagon by axis,
Edge and the affixed air flow method porous plate of inner walls, air flow method pipe network disk and air-flow are provided with below the group beam of lower part
Enclosure interior is separated out the flue gas ash removal space at middle part by distribution porous plate.
Moreover, the insulation room includes insulation shell, circulating line heater, ring pipe are installed inside insulation shell
Channel heater is heated by the flowing steam that steam inlet and steam (vapor) outlet provide, and is equipped in the bottom of insulation shell and is holded up upwards
Insulated hollow porcelain knob, clamping screw is installed on the top of insulated hollow porcelain knob, clamping screw hangs for fixing the conduction
The upper end of bar, meanwhile, clamping screw is connect with external high pressure power supply, is powered up to conductive sunpender.
Moreover, being equipped with temperature transmitter on the left side wall of insulation shell, temperature transmitter constantly detects insulation shell
Internal temperature, external steam control system is transmitted to by temperature data.
Moreover, the intersection connecting pipe in the air flow method pipe network disk is used not less than 316L stainless steels, hand over
Connecting pipe is pitched by several square through holes of air flow method pipe network disk Inner Constitution.
Moreover, the tubular anode group is specifically made of vinylite electroconductive frp.
Moreover, the cathode line is the rigid bur line of 2205 stainless steels.
The advantages and positive effects of the present invention are：
1st, present invention optimizes whole deduster structures, especially install waste-heat recovery device additional in gas inlet, and integrate
Air flow method function, has both functional and economy, and manufacture, installation and debugging have obtained good improvement；
2nd, air flow method with waste heat recovery is combined, the comprehensive utilization of equipment is improved under the premise of not increasing space
Property, it can be used as industrial water after waste heat recovery, stored energy source done after can also converting.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structure diagram of insulation room in the present invention；
Fig. 3 is the structure diagram of air flow method pipe network disk in the present invention；
Fig. 4 is the cross section structure schematic diagram of tubular type anode unit in the present invention.
Specific embodiment
Present invention implementation is further described below in conjunction with attached drawing, following embodiment is descriptive, is not to limit
Property, it is impossible to protection scope of the present invention is limited with this.
A kind of wet cottrell with function of recovering waste heat, as shown in Figure 1, including cylindrical shell 1, on housing top
End middle part is equipped with gas inlet, is fixed with insulation room 15 respectively in the both sides of gas inlet, and discharge outlet is equipped in the bottom end of housing
10, exhanst gas outlet 11 is provided on right side wall in the lower part of the housing, top is fixed with by connecting pipe interconnection structure inside housings
Into air flow method pipe network disk 2 corresponding with enclosure interior diameter, the water inlet 14 of air flow method pipe network disk is packed in shell
On the outside of body right side wall, the water outlet 17 of air flow method pipe network disk is packed on the outside of housing left side wall, air flow method pipe network disk
Not only play the role of air flow method to the flue gas of entrance, while also act as flue gas cool-down, justify in air flow method pipe network
The water spray disk 4 being made of connecting pipe interconnection is installed, in the lower section haul distance for forming water spray disk pipeline below disk
Multiple hole for water sprayings are equipped at intervals with, the water inlet 13 for disk of spraying water is packed on the outside of housing right side wall, in described two insulation rooms
Conductive sunpender 3 straight down is mounted on, conductive sunpender is each passed through air flow method pipe network disk and water spray circle straight down
The lower section of water spray disk is extended to behind the gap of disk, conductive sunpender is kept with the electricity of air flow method pipe network disk and water spray disk absolutely
Edge is equipped with the netted upper group beam 5 of disk being made of the braiding of conductor metal stick in the lower end of conductive sunpender, in upper group beam
Lower surface on it is even the cathode line group that is made of more cathode lines 6 straight down is installed away from interval, under cathode line group
Portion end is equipped with the lower part group beam 8 identical with upper group girder construction, is fixedly mounted in the inner walls below upper group beam and shell
The orificed anode collar tie beam 12 of body electrical connection is fixedly mounted with section as honeycomb structure and the pipe of upper and lower opening inside orificed anode collar tie beam
Formula anode unit 7, each section in tubular anode group is is both provided with a cathode line by axis in the pipe of regular hexagon
It passes through, edge and the affixed air flow method porous plate 9 of inner walls, air flow method pipe network circle is provided with below the group beam of lower part
Enclosure interior is separated out the flue gas ash removal space at middle part with air flow method porous plate by disk.
In the specific implementation of the present invention, as shown in Fig. 2, the insulation room includes insulation shell 18, in insulation shell
Portion is equipped with circulating line heater 22, the flowing steam that circulating line heater is provided by steam inlet 20 and steam (vapor) outlet 21
Heating, the insulated hollow porcelain knob 23 holded up upwards is equipped in the bottom of insulation shell, is installed on the top of insulated hollow porcelain knob
There is clamping screw 24, clamping screw is used to fix the upper end of the conductive sunpender, and conductive sunpender is extended downwardly by insulated hollow
The under shed of porcelain knob is pierced by, meanwhile, clamping screw is connect with external high pressure power supply 16, is powered up to conductive sunpender.
Moreover, being equipped with temperature transmitter 19 on the left side wall of insulation shell, temperature transmitter constantly detects insulation cladding
The temperature in internal portion, external steam control system is transmitted to by temperature data, and circulating line is adjusted by external steam control system
Hot steam flow in heater adjusts the temperature inside insulation shell.
In the specific implementation of the present invention, as shown in figure 3, the intersection connecting pipe in the air flow method pipe network disk is adopted
With not less than 316L stainless steels, have the characteristics that structural strength is good, corrosion-resistant, the coefficient of heat transfer is high, fully meet distribution of smoke
The function of gas and recovery waste heat；Intersect connecting pipe by several square through holes 25 of air flow method pipe network disk Inner Constitution, from
The flue gas that housing tip gas inlet enters is discharged downwards by several square through holes, and the conduction sunpender in square through hole by wearing
It crosses and extends to lower section.
In the specific implementation of the present invention, the tubular anode group uses vinylite electroconductive frp (CFRP), it
It is using vinyl esters synthetic resin as adhesive, using glass fibre and its product as reinforcing material, using carbon fiber product as conduction
Material, and be aided with auxiliary agent and be made so that dedusting tubular type anode unit has good conduction, anti-corrosion, flame retardant property, Yi Jiqiang
The advantages that degree, good rigidity.
In the specific implementation of the present invention, as shown in figure 4, the section of the tubular anode group is into multiple regular hexagon honeycombs
Shape is arranged side by side, and regular hexagon inscribed circle diameter is 350mm-360mm, and length requires to adjust between 3m-6m according to manufacture craft
Whole, the structure tubular type anode unit flow area utilization rate is high, big with respect to processing gas flow, and honeycomb between more anode tubes
Shape mutually supports, and structural rigidity is good, stable connection is reliable.
In the specific implementation of the present invention, rigid bur line of the cathode line for 2205 stainless steels, rigid polar curve
When being easily installed adjust interpolar away from.
The operation principle of the present invention：
Flue gas enters deduster by inlet flue duct, successively by air flow method system, anode system, air flow method system
System is excluded from house outlet.High voltage power supply generates high-voltage electricity, charges cathode line by conductive sunpender, cathode upper frame,
By cathode prickle wire point discharge, make the impurity in flue gas charged, absorption is on anode tube wall under the action of electric field force.When
When impurity deposition is more, opens and rinse water system, the deposit on anode inside pipe wall is rinsed well, waste water is discharged to by discharge outlet
Sedimentation basin does recirculated water recycling after subsequent processing.
Claims (6)
1. a kind of wet cottrell with function of recovering waste heat, it is characterised in that：Including cylindrical shell, in housing tip
Middle part is equipped with gas inlet, is fixed with insulation room respectively in the both sides of gas inlet, discharge outlet is equipped in the bottom end of housing, in shell
Exhanst gas outlet is provided on the right side wall of body lower part, top is fixed be made of connecting pipe interconnection and housing inside housings
The corresponding air flow method pipe network disk of inside diameter, the water inlet of air flow method pipe network disk are packed on the outside of housing right side wall,
The water outlet of air flow method pipe network disk is packed on the outside of housing left side wall, be equipped with below air flow method pipe network disk by
The water spray disk that connecting pipe interconnection is formed, it is even away from being equipped at intervals with multiple water sprays in the lower section for forming water spray disk pipeline
Hole, the water inlet for disk of spraying water are packed on the outside of housing right side wall, are mounted on straight down in described two insulation rooms
Conductive sunpender, conductive sunpender extend to water spray after being each passed through the gap of air flow method pipe network disk and disk of spraying water straight down
The lower section of disk is equipped with the netted upper group beam of disk being made of the braiding of conductor metal stick in the lower end of conductive sunpender,
It is even on the lower surface of upper group beam that the cathode line group being made of more cathode lines straight down is installed away from interval, in cathode line
The lower part end of group is equipped with the lower part group beam identical with upper group girder construction, is fixedly mounted in the inner walls below upper group beam
The orificed anode collar tie beam being electrically connected with housing, it is honeycomb structure and upper and lower opening that section is fixedly mounted with inside orificed anode collar tie beam
Tubular anode group, each section in tubular anode group is is both provided with a cathode line by axis in the pipe of regular hexagon
It passes through, edge and the affixed air flow method porous plate of inner walls, air flow method pipe network circle is provided with below the group beam of lower part
Enclosure interior is separated out the flue gas ash removal space at middle part with air flow method porous plate by disk.
2. the wet cottrell according to claim 1 with function of recovering waste heat, it is characterised in that：The insulation
Room includes insulation shell, is equipped with circulating line heater inside insulation shell, circulating line heater by steam inlet and
The flowing steam heating that steam (vapor) outlet provides, the insulated hollow porcelain knob holded up upwards is equipped in the bottom of insulation shell, exhausted
The top of edge hollow knob insulator is equipped with clamping screw, and clamping screw is used to fix the upper end of the conductive sunpender, meanwhile, locking
Bolt is connect with external high pressure power supply, is powered up to conductive sunpender.
3. the wet cottrell according to claim 2 with function of recovering waste heat, it is characterised in that：In insulation cladding
Temperature transmitter is installed, temperature transmitter detects the temperature inside insulation shell in real time, by temperature data on the left side wall of body
It is transmitted to external steam control system.
4. the wet cottrell according to claim 1 with function of recovering waste heat, it is characterised in that：The air-flow
The stainless steel for intersecting connecting pipe and being not less than 316L using corrosion resistance being distributed in pipe network disk, intersecting connecting pipe will
Several square through holes of air flow method pipe network disk Inner Constitution.
5. the wet cottrell according to claim 1 with function of recovering waste heat, it is characterised in that：The tubular type
Anode unit is specifically made of vinylite electroconductive frp.
6. the wet cottrell according to claim 1 with function of recovering waste heat, it is characterised in that：The cathode
Line is the rigid bur line of 2205 stainless steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182551.XA CN107042158B (en) | 2016-12-20 | 2016-12-20 | A kind of wet cottrell with function of recovering waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182551.XA CN107042158B (en) | 2016-12-20 | 2016-12-20 | A kind of wet cottrell with function of recovering waste heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107042158A CN107042158A (en) | 2017-08-15 |
| CN107042158B true CN107042158B (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611182551.XA Expired - Fee Related CN107042158B (en) | 2016-12-20 | 2016-12-20 | A kind of wet cottrell with function of recovering waste heat |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847939A (en) * | 2017-11-30 | 2019-06-07 | 中天科技精密材料有限公司 | Dust leg and deduster |
| CN108311280B (en) * | 2018-02-09 | 2024-02-23 | 福建菁龙铁科技有限公司 | High-efficient wet electrostatic precipitator |
| CN110354993A (en) * | 2019-07-21 | 2019-10-22 | 天津大学 | A kind of residual-heat used type electric dust separator |
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| CN105964404A (en) * | 2016-05-06 | 2016-09-28 | 浙江天蓝环保技术股份有限公司 | Vertical type wet electric dust removal device |
| CN205628290U (en) * | 2016-05-06 | 2016-10-12 | 江苏釜鼎能源科技有限公司 | Wet -type electrostatic precipitator with coalescence function in advance |
| CN205761773U (en) * | 2016-05-12 | 2016-12-07 | 海宁国能中电节能环保设备技术有限公司 | Energy-saving insulated case for tubular type wet electrical dust precipitator |
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- 2016-12-20 CN CN201611182551.XA patent/CN107042158B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0515811A (en) * | 1991-02-26 | 1993-01-26 | Mitsubishi Heavy Ind Ltd | Electric precipitator and its operating method |
| CN203184115U (en) * | 2013-04-07 | 2013-09-11 | 熊天渝 | Wet-type electrostatic dust collector |
| CN104384023A (en) * | 2014-11-05 | 2015-03-04 | 国电科学技术研究院 | Deep purifying device and method for flue gas of large coal-fired power plant |
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| CN107042158A (en) | 2017-08-15 |
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