CN108246505A - A kind of small-sized efficient tube-type esp - Google Patents
A kind of small-sized efficient tube-type esp Download PDFInfo
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- CN108246505A CN108246505A CN201810200571.8A CN201810200571A CN108246505A CN 108246505 A CN108246505 A CN 108246505A CN 201810200571 A CN201810200571 A CN 201810200571A CN 108246505 A CN108246505 A CN 108246505A
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- dust
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- discharge electrode
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- 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
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
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- 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
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/011—Prefiltering; Flow controlling
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- 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
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/06—Plant or installations having external electricity supply dry type characterised by presence of stationary tube electrodes
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- 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
- B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
-
- 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
- B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
- B03C3/765—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact with electromagnetic rappers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/28—Multiple arrangement thereof for parallel flow
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrostatic Separation (AREA)
Abstract
The present invention relates to environmental protection equipment dedusting applied technical field, particularly a kind of small-sized efficient tube-type esp.It includes housing, air inlet, air outlet, stent, collection ash cellar, air-intake device, dust collecting electrode, corona discharge electrode, electromagnetic rapping device and high voltage power supply, housing is externally provided with air inlet, air outlet, stent sum aggregate ash cellar, air-intake device, dust collecting electrode and corona discharge electrode are equipped in housing from the bottom to top, electromagnetic rapping device and high voltage power supply are equipped with above housing, electromagnetic rapping device is connect respectively with corona discharge electrode and dust collecting electrode, corona discharge electrode is connected as anode with high voltage power supply, dust collecting electrode ground connection is cathode, forms positive corona field.Its manufacture and operation expense is low; it is few to discharge ozone; bulky grain dust can be removed in advance; make dust pre electrified, trapping ability of the high voltage electric field to dust for improving electric precipitator; and improve the distribution of air-flow and reduce reentrainment of dust; it is powered using high frequency switch power, so as to improve the efficiency of dust collection of electric precipitator, achieved energy-saving and emission reduction purposes.
Description
Technical field
The present invention relates to environmental protection equipment dedusting applied technical field, particularly a kind of small-sized efficient tube-type esp.
Background technology
The situation is tense for China's atmospheric environment in recent years, large area, more area continue have hair during large-scale haze weather
Raw, the reason of formation is that the pollution sources that the life of the mankind and production activity generate increase, and the primary pollution wherein discharged and
The pollutant of secondary formation has exceeded regional atmospheric bearing capacity, and the influence of local meteorological condition, can not effectively spread in addition,
Pollutant concentration drastically increases, and ultimately forms haze.As people's environmental consciousness enhances, industrial department environmental emission standard
Increasingly it is stringent, the performance requirement of cleaner is continuously improved.At present in industries or phases such as China's medicine, food, building materials, castings
The civil field of pass, Miniature tube type electric precipitator have obtained certain application, it being capable of the numerous small-scale pollution sources of purified treatment
The exhaust gas of discharge, suitable for 2000Nm3The operating mode of/below h exhaust gas volumns, and efficiency of dust collection is higher, stable and reliable operation, equipment
Resistance is low, it is low with operating cost to safeguard.In view of small-sized electric precipitator is applied seldom in each industrial department and civil field, it is
The pollution of our living environments is reduced, purifies the exhaust gas of numerous small-scale pollution sources discharges, exploitation is small-sized, efficient electric removes
Dirt device and applying is very important in the small occasion of processing exhaust gas volumn.
Invention content
The small-sized efficient tube-type esp low with operation expense is manufactured the object of the present invention is to provide a kind of,
Using positive corona field, the discharge of ozone is reduced, bulky grain dust is removed in advance, in addition removes dust pre electrified, raising electricity
The high voltage electric field of dirt device improves the distribution of air-flow and reduces reentrainment of dust to the trapping ability of dust, using HF switch
Power supply is powered, and so as to the whole efficiency of dust collection for improving electric precipitator, is achieved energy-saving and emission reduction purposes.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of small-sized efficient tube-type esp, including housing, air inlet, air outlet, stent, collection ash cellar, air-intake device,
Dust collecting electrode, corona discharge electrode, electromagnetic rapping device and high voltage power supply, the lower housing section offer air inlet, and epimere offers outlet air
Mouthful, stent sum aggregate ash cellar is additionally provided with below the housing, has been sequentially arranged air-intake device, collection in the housing from the bottom to top
Dirt pole and corona discharge electrode are additionally provided with electromagnetic rapping device and high voltage power supply, the electromagnetic rapping device point above the housing
It not being connect with corona discharge electrode and dust collecting electrode, the high voltage power supply exports positive voltage, and the corona discharge electrode is connected as anode with high voltage power supply,
Dust collecting electrode ground connection is cathode, forms positive corona field.
Aforementioned small-sized efficient tube-type esp, the air-intake device include air intake assembly, and the air intake assembly includes
Cyclone separator, ash bucket and blast pipe, the bottom of the cyclone separator are equipped with ash bucket, and the ash bucket is fixed in collection ash cellar,
The side of the cyclone separator is equipped with blast pipe, and the blast pipe is connected with air inlet.
Aforementioned small-sized efficient tube-type esp, further includes connecting plate, and the air intake assembly is at least set there are two parallel connection
It puts, is connected between the adjacent air intake assembly through connecting plate.
Aforementioned small-sized efficient tube-type esp, the cyclone separator include multiple Whirlwind cyclones, and the Whirlwind cyclone is in
Matrix arrangement.
Aforementioned small-sized efficient tube-type esp, the dust collecting electrode includes the dust leg and tube sheet that are connected with each other, described
Tube sheet is horizontally placed on the upper end of dust leg, and is welded with dust leg, and the dust leg is arranged in arrays, and the dust leg is set on
The top of Whirlwind cyclone, and dust leg and Whirlwind cyclone are arranged concentrically.
Aforementioned small-sized efficient tube-type esp, the corona discharge electrode include corona discharge electrode suspension apparatus, corona discharge electrode frame, electricity
Hachure is connected with corona discharge electrode suspension apparatus above the corona discharge electrode frame, and the corona discharge electrode suspension apparatus insulation set is in shell
The top of body is connected with corona wire arranged in arrays below the corona frame, and the corona wire is located at dust tube hub.
Aforementioned small-sized efficient tube-type esp, further includes gate valve, and the gate valve is set to collection ash cellar and ash bucket
Bottom end.
Aforementioned small-sized efficient tube-type esp, the high voltage power supply use high frequency switch power.
Compared with prior art, the invention has the beneficial effects that：
1) a kind of small-sized efficient tube-type esp designed by the present invention, manufacture is low with operation expense, using sun
Corona field can reduce the discharge of ozone, and bulky grain dust can be removed in advance, in addition make dust pre electrified, improve electric precipitation
The high voltage electric field of device improves the distribution of air-flow and reduces reentrainment of dust to the trapping ability of dust, using HF switch electricity
Source powers, and so as to the whole efficiency of dust collection for improving electric precipitator, achieves energy-saving and emission reduction purposes；
2) by setting multigroup cyclone separator, dust-contained airflow is made to enter cyclonic separation in parallel by blast pipe Fen Ji roads
Device, after Whirlwind cyclone detaches, under the influence of centrifugal force, bulky grain dust is separated and falls into lower part ash bucket, is played
The effect of pre- dedusting, and by the way that by Whirlwind cyclone matrix arrangement, the dust-contained airflow contributed in electric precipitator is uniformly distributed, it is more in addition
Group cyclone separator is used in parallel, is equally beneficial for improving the distribution of air-flow, reduces reentrainment of dust；
3) dust-contained airflow enters cyclone separator with higher tangential velocity, then done in cyclone separator it is outer vortex and
A series of rotary motions such as inside vortex, in this process, part not by the relatively fine particle of cyclonic separation because in Whirlwind cyclone
Phase mutual friction between wall surface high-speed friction and particle contacts electrification, while dust is because high speed rotation is in high-voltage electricity with colliding
Motion path in lengthens so that high voltage electric field trap dust advantageously, and is acted on, ash by the centrifugal force of cyclone separator
The migration velocity of dirt is increased, and is equally beneficial for trapping of the high voltage electric field to dust, and high voltage power supply is opened using high frequency
Powered-down source so that the voltage of high voltage electric field is more stablized, is reliable；
4) air-intake device and the ash discharge space of electric field lower end are isolated, and can be mitigated vibration dust-cleaning significantly in this way and be flown in the process
The reentrainment of dust of ash, in the electric precipitator of multiple cyclone separator group parallel connections, while can improve the profiling-quality of air-flow；
5) the configuration of the present invention is simple, electromagnetic rapping device can carry out vibration dust-cleaning to corona discharge electrode and dust collecting electrode simultaneously, from
And the integrated operation of equipment is increased, and reduce equipment investment cost.
Description of the drawings
Fig. 1 is the structural front view of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the air-intake device structural front view of the present invention；
Fig. 4 is the B-B sectional views of Fig. 3；
Fig. 5 is the C-C sectional views of Fig. 3.
The meaning of reference numeral：1- housings, 2- air inlets, 3- air outlets, 4- stents, 5- collection ash cellars, 6- air-intake devices, 7-
Dust collecting electrode, 8- corona discharge electrodes, 9- electromagnetic rapping devices, 10- high voltage power supplies, 11- air intake assemblies, 12- cyclone separators, 13- ash buckets,
14- blast pipes, 15- connecting plates, 16- Whirlwind cyclones, 17- dust legs, 18- tube sheets, 19- corona discharge electrode suspension apparatus, 20- corona discharge electrode frames
Frame, 21- corona wires, 22- gate valves.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
The embodiment of the present invention 1：A kind of small-sized efficient tube-type esp, as Figure 1-Figure 5, for outlet air on lower air inlet
Structure is run using negative pressure, including housing 1, air inlet 2, air outlet 3, stent 4, collection ash cellar 5, air-intake device 6, dust collecting electrode 7,
Corona discharge electrode 8, electromagnetic rapping device 9 and high voltage power supply 10,1 hypomere of housing offer air inlet 2, and epimere offers air outlet
3, the lower section of the housing 1 is additionally provided with 4 sum aggregate ash cellar 5 of stent, and the 1 sum aggregate ash cellar 5 of housing connects, in the housing 1 by
Under it is supreme be sequentially arranged air-intake device 6, dust collecting electrode 7 and corona discharge electrode 8, the top of the housing 1 is additionally provided with electromagnetic rapping dress
9 and high voltage power supply 10 are put, the electromagnetic rapping device 9 is connect respectively with corona discharge electrode 8 and dust collecting electrode 7, and the high voltage power supply 10 is defeated
Going out positive voltage, the high voltage power supply 10 is connect with corona discharge electrode 8, forms positive corona field, and the corona discharge electrode 8 is anode (anode),
The dust collecting electrode 7 does grounding as cathode (cathode), and ground resistance is less than 2 Ω.
The air-intake device 6 include air intake assembly 11, the air intake assembly 11 include cyclone separator 12, ash bucket 13 and into
Air hose 14, the bottom of the cyclone separator 12 are equipped with ash bucket 13, and the ash bucket 13 is independent sealed to be set in collection ash cellar 5, is led to
It crosses and independent sealed ash bucket 13 is set so that air-intake device 6 is isolated with ash discharge space, avoids the generation of reentrainment of dust, has
Help improve the efficiency of dust collection of electric precipitator.There are one gate valve 22, gate valves for 13 sum aggregate ash cellar of ash bucket, 5 times common connections
22 can carry out the dust collected in ash cellar 5 and ash bucket 13 unified cleaning.The side of the cyclone separator 12 is equipped with blast pipe
14, the blast pipe 14 and air inlet 2 connect.The cyclone separator 12 includes multiple Whirlwind cyclones 16, and the Whirlwind cyclone 16 is in
Matrix arrangement helps to be passed through the dust-contained airflow in deduster and is evenly distributed, in order to make air-intake device 6 more durable, institute
It states cyclone separator 12, blast pipe 14 and ash bucket 13 and uses stainless steel.
The dust collecting electrode 7 includes the dust leg 17 being connected with each other and tube sheet 18, the tube sheet 18 are horizontally placed on dust leg
17 upper end, and welded with dust leg 17, the dust leg 17 is arranged in arrays, and the dust leg 17 is set on the upper of Whirlwind cyclone 16
Side, and dust leg 17 and Whirlwind cyclone 16 are arranged concentrically, the dust leg 17 is the cathode (cathode) of high voltage electric field.
The corona discharge electrode 8 includes corona discharge electrode suspension apparatus 19, corona discharge electrode frame 20, corona wire 21, the corona discharge electrode frame
20 top is connected with corona discharge electrode suspension apparatus 19, and 19 insulation set of corona discharge electrode suspension apparatus is described in the top of housing 1
The lower section of corona discharge electrode frame 20 is connected with corona wire 21 arranged in arrays, and the corona wire 21 is located at 17 center of dust leg, institute
State the anode (anode) that corona wire 21 is high voltage electric field.The high voltage power supply 10 being connect with corona discharge electrode 8 uses high frequency switch power, institute
The basic parameter for stating high frequency switch power is：
(1) input voltage：220VAC, 50Hz；
(2) output services voltage：10~20kVDC；
(3) output services electric current：10~100mA；
(4) working frequency：20~50kHz；
(5) there are overload protection and short-circuit protection.
Embodiment 2：A kind of small-sized efficient tube-type esp as Figure 1-Figure 5, for air exhausting structure on lower air inlet, is adopted
Run with negative pressure, including housing 1, air inlet 2, air outlet 3, stent 4, collection ash cellar 5, air-intake device 6, dust collecting electrode 7, corona discharge electrode 8,
Electromagnetic rapping device 9 and high voltage power supply 10,1 hypomere of housing offer air inlet 2, and epimere offers air outlet 3, the shell
The lower section of body 1 is additionally provided with 4 sum aggregate ash cellar 5 of stent, and the 1 sum aggregate ash cellar 5 of housing connects, suitable from the bottom to top in the housing 1
Secondary to be provided with air-intake device 6, dust collecting electrode 7 and corona discharge electrode 8, the top of the housing 1 is additionally provided with electromagnetic rapping device 9 and high pressure
Power supply 10, the electromagnetic rapping device 9 are connect respectively with corona discharge electrode 8 and dust collecting electrode 7, and the high voltage power supply 10 exports positive voltage,
The high voltage power supply 10 is connect with corona discharge electrode 8, forms positive corona field, and the corona discharge electrode 8 is anode (anode), the dust collecting electrode
7 do grounding as cathode (cathode), and ground resistance is less than 2 Ω.
The air-intake device 6 include air intake assembly 11, the air intake assembly 11 include cyclone separator 12, ash bucket 13 and into
Air hose 14, the bottom of the cyclone separator 12 are equipped with ash bucket 13, and the ash bucket 13 is independent sealed to be set in collection ash cellar 5, is led to
It crosses and independent sealed ash bucket 13 is set so that air-intake device 6 is isolated with ash discharge space, avoids the generation of reentrainment of dust, has
Help improve the efficiency of dust collection of electric precipitator.There are one gate valve 22, gate valves for 13 sum aggregate ash cellar of ash bucket, 5 times common connections
22 can carry out the dust collected in ash cellar 5 and ash bucket 13 unified cleaning.The side of the cyclone separator 12 is equipped with blast pipe
14, the blast pipe 14 and air inlet 2 connect.The cyclone separator 12 includes multiple Whirlwind cyclones 16, and the Whirlwind cyclone 16 is in
Matrix arrangement, the dust-contained airflow contributed in electric precipitator are uniformly distributed.
In order to improve the exhaust gas volumn of the processing of air-intake device 6, the air-flow being passed through is more steady, the Miniature tube type electric precipitator
Air-intake device 6, further include connecting plate 15, the air intake assembly 11 is at least there are two being arranged in parallel, the adjacent air intake assembly
It is connected between 11 through connecting plate 15, so that 6 structure of entire air-intake device is more rationally.In order to make air-intake device 6 more
Durable, the cyclone separator 12, blast pipe 14, ash bucket 13 and connecting plate 15 use stainless steel.
The dust collecting electrode 7 includes the dust leg 17 being connected with each other and tube sheet 18, the tube sheet 18 are horizontally placed on dust leg
17 upper end, and welded with dust leg 17, the dust leg 17 is arranged in arrays, and the dust leg 17 is set on the upper of Whirlwind cyclone 16
Side, and dust leg 17 and Whirlwind cyclone 16 are arranged concentrically, the dust leg 17 is the cathode (cathode) of high voltage electric field.
The corona discharge electrode 8 includes corona discharge electrode suspension apparatus 19, corona discharge electrode frame 20, corona wire 21, the corona discharge electrode frame
20 top is connected with corona discharge electrode suspension apparatus 19, and 19 insulation set of corona frame hanger is in the top of housing 1, the electricity
The lower section of dizzy pole frame 20 is connected with corona wire 21 arranged in arrays, and the corona wire 21 is located at 17 center of dust leg, described
Corona wire 21 is the anode (anode) of high voltage electric field.The high voltage power supply 10 being connect with corona discharge electrode 8 uses high frequency switch power, described
The basic parameter of high frequency switch power is：
(1) input voltage：220VAC, 50Hz；
(2) output services voltage：10~20kVDC；
(3) output services electric current：10~100mA；
(4) working frequency：20~50kHz；
(5) there are overload protection and short-circuit protection.
The operation principle of the present invention：The electric precipitator of the present invention is air exhausting structure on lower air inlet, and negative pressure is used to run,
Air inlet 2 is opened up in the hypomere of housing 1, epimere opens up air outlet 3, and 1 lower section of housing sets 4 sum aggregate ash cellar 5 of stent, and in housing
Air-intake device 6, dust collecting electrode 7, corona discharge electrode 8 are sequentially arranged in 1 from the bottom to top, electromagnetic rapping device 9 and height are set above housing 1
Voltage source 10 so as to be assembled into a kind of manufacture small-sized efficient tube-type esp low with operation expense, is swooned using positive electricity
Electric field reduces the discharge of ozone, and bulky grain dust is removed in advance, in addition makes dust pre electrified, the high pressure for improving electric precipitator
Electric field improves the distribution of air-flow and reduces reentrainment of dust to the trapping ability of dust, is powered using high frequency switch power, from
And the whole efficiency of dust collection for improving electric precipitator, it achieves energy-saving and emission reduction purposes.Dust-contained airflow enters electric precipitator from air inlet 2
Inside enters cyclone separator 12 through blast pipe 14, and dust is with air-flow high speed rotation, under the influence of centrifugal force, bulky grain ash
Dirt is separated, and is fallen into the ash bucket 13 of lower section, so as to play the role of pre- dedusting.Since air-intake device 6 and ash discharge are empty
Between be isolated, avoid the generation of reentrainment of dust, therefore ensure that the efficiency of dust collection of electric precipitator.Dust-contained airflow is cut with higher
Enter in cyclone separator 12 to speed, a series of rotation fortune such as outer vortex and inside vortex are then done in cyclone separator 12
It is dynamic, in this process, not by the relatively fine particle of cyclonic separation because the inner wall surface high-speed friction and particle with Whirlwind cyclone 16 it
Between phase mutual friction and collision and contact electrification, dust pre electrified has the dust arrestment of follow-up high voltage electric field larger help.
Another aspect dust increases migration velocity with air-flow high speed rotation, and dust adds because of the motion path being rotated in high voltage electric field
It is long, it is equally beneficial for the trapping of subsequent electric precipitation.And further, multiple cyclone separators are arranged in parallel in electric precipitator
12, the ability of electric precipitator processing flue gas can be improved, and after multigroup cyclone separator 12 is set, be conducive to improve air-flow point
Cloth reduces reentrainment of dust.After dust-contained airflow removes a large amount of bulky grain dusts by pre- dedusting, remaining dust with air-flow continue to rise into
In the dust leg 17 for entering dust collecting electrode 7, dust leg 17 and corona wire 21 form high voltage electric field, corona wire 21 and output positive high voltage
High voltage power supply 10 is connected therefore for anode (anode), and current potential is zero as cathode (cathode) after dust leg 17 is grounded.Corona wire 21
Surrounding forms positive electricity corona, makes the gas ionization of surrounding, generates a large amount of free electrons and cation, and cation tends to dust leg
Cathode where 17, free electron, that is, anion move under electric field force effect to the anode where corona wire 21, and charge is full of
Space between the two poles of the earth.Enter the dusty gas in dust leg 17 from bottom, moved from the bottom to top in dust leg 17, wherein few
Part dust tends to the two poles of the earth immediately because of the contact electrification in advance in cyclone separator 12 into high voltage electric field；Most of dust
It collides and adheres to cation, make dust positively charged, therefore under the action of electric field force, positively charged dust tends to dust leg
17 and its inner surface is attached to, is deposited on dust leg 17 after releasing positive charge, and detached with gas, a small number of and free electron
It collides electronegative dust to tend to corona wire 21 and adhere to its surface deposition, and is detached with gas.Dust-contained airflow is removed dust
It is discharged afterwards by the air outlet of electric precipitator 3, is attached to the dust of dust collecting electrode 7 and corona discharge electrode 8 under the rapping of electromagnetic rapping device 9
It falls in the collection ash cellar 5 of lower section, since the lower section of collection ash cellar 5 and ash bucket 13 is provided with gate valve 22, can periodically arrange
Ash keeps the cleaning inside electric precipitator, avoids reentrainment of dust caused by dust accumulation excessively.Through pre- dedusting, pre electrified, carry
The migration velocity of dusty reduces reentrainment of dust and improves the efficient tube type electric precipitator after the functions such as air-flow improve, dedusting effect
Rate is and compact in structure and convenient to use up to more than 99.8%, and manufacture is low with operation expense, it can be ensured that air outlet 3 discharges
Concentration is less than 20mg/m3。
Claims (8)
1. a kind of small-sized efficient tube-type esp, which is characterized in that including housing (1), air inlet (2), air outlet (3), branch
Frame (4), collection ash cellar (5), air-intake device (6), dust collecting electrode (7), corona discharge electrode (8), electromagnetic rapping device (9) and high voltage power supply
(10), housing (1) hypomere offers air inlet (2), and epimere offers air outlet (3), and the lower section of the housing (1) is also set
Be equipped with stent (4) sum aggregate ash cellar (5), be sequentially arranged from the bottom to top in the housing (1) air-intake device (6), dust collecting electrode (7) and
Corona discharge electrode (8) is additionally provided with electromagnetic rapping device (9) and high voltage power supply (10), the electromagnetic rapping above the housing (1)
Device (9) is connect respectively with corona discharge electrode (8) and dust collecting electrode (7), and the high voltage power supply (10) exports positive voltage, the corona discharge electrode
(8) anode is connected as with high voltage power supply (10), dust collecting electrode (7) ground connection is cathode, forms positive corona field.
2. small-sized efficient tube-type esp according to claim 1, which is characterized in that the air-intake device (6) includes
Air intake assembly (11), the air intake assembly (11) include cyclone separator (12), ash bucket (13) and blast pipe (14), the whirlwind
The bottom of separator (12) is equipped with ash bucket (13), and the ash bucket (13) is fixed in collection ash cellar (5), the cyclone separator (12)
Side be equipped with blast pipe (14), the blast pipe (14) and air inlet (2) connect.
3. small-sized efficient tube-type esp according to claim 2, which is characterized in that further include connecting plate (15), institute
Air intake assembly (11) is stated at least there are two being arranged in parallel, is connected between the adjacent air intake assembly (11) through connecting plate (15).
4. the small-sized efficient tube-type esp according to Claims 2 or 3, which is characterized in that the cyclone separator
(12) comprising multiple Whirlwind cyclones (16), the Whirlwind cyclone (16) is arranged in arrays.
5. small-sized efficient tube-type esp according to claim 4, which is characterized in that the dust collecting electrode (7) is including phase
The dust leg (17) and tube sheet (18) to connect, the tube sheet (18) are horizontally placed on the upper end of dust leg (17), and and dust
(17) welding is managed, the dust leg (17) is arranged in arrays, and the dust leg (17) is set on the top of Whirlwind cyclone (16), and dust
Pipe (17) and Whirlwind cyclone (16) are arranged concentrically.
6. small-sized efficient tube-type esp according to claim 5, which is characterized in that the corona discharge electrode (8) is including electricity
Dizzy pole suspension apparatus (19), corona discharge electrode frame (20), corona wire (21) are connected with corona above the corona discharge electrode frame (20)
Pole suspension apparatus (19), corona discharge electrode suspension apparatus (19) insulation set is in the top of housing (1), the corona discharge electrode frame
(20) corona wire arranged in arrays (21) is connected with below, the corona wire (21) is positioned at dust leg (17) center.
7. the small-sized efficient tube-type esp according to Claims 2 or 3, which is characterized in that gate valve (22) is further included,
The gate valve (22) is set to the bottom end of collection ash cellar (5) and ash bucket (13).
8. small-sized efficient tube-type esp according to claim 1, which is characterized in that the high voltage power supply (10) uses
High frequency switch power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200571.8A CN108246505A (en) | 2018-03-12 | 2018-03-12 | A kind of small-sized efficient tube-type esp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200571.8A CN108246505A (en) | 2018-03-12 | 2018-03-12 | A kind of small-sized efficient tube-type esp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108246505A true CN108246505A (en) | 2018-07-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111495088A (en) * | 2020-04-27 | 2020-08-07 | 安徽顺达环保科技股份有限公司 | Centrifugal separation device and method for wet electric dust removal of denitration tower |
| CN112996603A (en) * | 2018-11-27 | 2021-06-18 | 韩国能源技术研究院 | Cyclone dust collecting apparatus and dust collecting method using the same |
| CN116237161A (en) * | 2023-05-08 | 2023-06-09 | 山东泰北环保设备股份有限公司 | High-voltage electrostatic dust collection device and implementation method thereof |
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| CN112996603A (en) * | 2018-11-27 | 2021-06-18 | 韩国能源技术研究院 | Cyclone dust collecting apparatus and dust collecting method using the same |
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| CN116237161B (en) * | 2023-05-08 | 2023-08-18 | 山东泰北环保设备股份有限公司 | High-voltage electrostatic dust collection device and implementation method thereof |
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Application publication date: 20180706 |