CN203750697U - Two-electrode barb electric coagulator - Google Patents
Two-electrode barb electric coagulator Download PDFInfo
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- CN203750697U CN203750697U CN201320797129.0U CN201320797129U CN203750697U CN 203750697 U CN203750697 U CN 203750697U CN 201320797129 U CN201320797129 U CN 201320797129U CN 203750697 U CN203750697 U CN 203750697U
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- prickle
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Abstract
The utility model discloses a two-electrode barb electric coagulator. The two-electrode barb electric coagulator is characterized by mainly comprising a shell, high-voltage electrodes, two grounding electrodes and a high-voltage alternating-current power supply; the high-voltage electrodes consist of high-voltage electrode plates and high-voltage barbs; the grounding electrodes consist of grounding electrode plates and grounding barbs; the two grounding electrodes are consistent in shape and structure; grounding barb needle points of the two grounding electrodes are oppositely arranged in two symmetrical sides of the shell in parallel; the high-voltage electrodes are arranged between the two grounding electrodes parallel to each other with equal distance; the high-voltage barbs and the grounding barb needle points are staggered relatively; the high-voltage electrode plates is connected to the high-voltage alternating-current power supply; two grounding electrode plates are connected to the ground. The electric coagulator is capable of effectively coagulating fine dust in the smoke, thus facilitating the effective dust removal of subsequent electrostatic precipitators; the two-electrode barb electric coagulator is simple in structure, small in size, low in cost and suitable for industrialized application.
Description
Technical field
The utility model relates to flue gas ash removal technology, is specially a kind of bipolar prickle electricity coalescer.This electricity coalescer can make after dust coalescence, then by electrostatic precipitator purifying and dedusting.
Background technology
According to current research, China has become fine particle in the world and has polluted one of the most serious area.The pollution problem that country has started to pay close attention to energetically and set about administering PM2.5.Because these fine dusts can directly enter people's respiratory system, these fine dusts still form the arch-criminal of haze weather simultaneously, in affecting health of people, also bring very big inconvenience to daily life.The capital equipment gathering dust as industry, electric cleaner will become entry and the key object that fine particle is administered.But traditional electric cleaner is very low to the fine dust removal efficiency in flue gas, therefore, want to solve the pollution problem of fine dust in atmosphere, must improve the performance of electric cleaner, improve the collection efficiency to these fine dusts.
Improve at present to the method for fine dust removal ability mainly, adopt coalescence technology to carry out pretreatment to the dust in flue gas, make fine dust coalescence become crude particle dust, to be conducive to follow-up removal.Coalescence technology has chemical coalescence and the large class of physics coalescence two, and chemical coalescence is to introduce chemical substance, impels dust coalescence; Physics coalescence is mainly to utilize extra electric field, magnetic field, and sound field, gravitational field or centrifugal field etc. are tiny dust coalescence, and its particle diameter is increased, then collect with electric cleaner.Wherein, coagulation dedusting technology provide a good approach for the fine dust of removing in flue gas, and relevant scholar has also carried out a large amount of pilot studys in coagulation mechanism and method.The main overview of coagulation application study is 3 aspects: the coulomb coalescence of heteropolarity Charged; The coalescence of same polarity Charged in alternating electric field; The coalescence of heteropolarity Charged in alternating electric field.Wherein, the coalescence of heteropolarity Charged in alternating electric field, superior performance with strong points with it, the plurality of advantages such as easy to implement become one of main development direction of coagulation dedusting technology.
Open (announcement) number is coagulation method or the equipment that the Chinese patent of CN1390157A, CN1603004A, CN201168647X, CN201329312Y, CN202590955U etc. discloses respectively corresponding particle, the pre-charge device of these flue dust is normally realized by the several distortion electric fields of increase, it is in fact the extension of electric precipitation electric field, to reach in a disguised form to increase dedusting electric field the object that improves efficiency of dust collection, fundamentally do not solve the charged coalescence efficiency of dust collection of flue dust problem, make the bulky of electric cleaner simultaneously yet.In addition, chargedly separate with coalescence, after making dust charged, adopt the rearmounted intersection-type collision of forcing, can cause the coalescence number of times of electrically charged particle less, actual performance is limited, or limit and cause charged intensity shortcoming because of mechanism, active force is inadequate, is difficult to reach the cohesion performance of expection.
Utility model content
For prior art deficiency, the technical problem that the utility model quasi-solution is determined is that a kind of bipolar prickle electricity coalescer is provided.This electricity coalescer is the fine dust in coalescence flue gas effectively, is convenient to the effective dedusting of follow-up electric cleaner, has simple in structurely, and volume is little, and cost is low, is suitable for the features such as industrial application.
The technical scheme that the utility model solve the technical problem is, design a kind of bipolar prickle electricity coalescer, it is characterized in that this electricity coalescer mainly comprises earth electrode and high-voltage ac power that high-field electrode, ground connection pole plate and the ground connection prickle of housing, high-pressure polar plate and high pressure prickle formation form, described earth electrode is consistent two of shape and structure, and the ground connection prickle needle point of two earth electrodes is relative, be arranged in abreast in two limits of housing symmetry; Described high-field electrode is parallel to each other and is equidistantly arranged on the centre of two earth electrodes, and high pressure prickle be staggered layout relative to ground connection prickle needle point; High-pressure polar plate is connected with high-voltage ac power, and two ground connection pole plates are all connected with ground.
Compared with prior art, the utility model electricity advantage of coalescer and the good effect of generation are: electric coalescer adopts the utmost point of bipolar prickle to join form, has higher electric-field intensity and uniformity; Because high pressure prickle and ground connection prickle produce respectively charges of different polarity corona simultaneously, thereby can make dust charge obtain the charges of different polarity when application, and make lotus have the dust collision efficiency of the charges of different polarity greatly to improve, and under action of alternative electric field, Charged moves reciprocatingly, and has further increased the collision efficiency of dust; In addition after Charged coalescence, its surface area increases, again charged after, electric weight increases, therefore coalescence is respond well, is convenient to the effective dedusting of follow-up electric cleaner; Meanwhile, the utility model electricity coalescer also has simple in structure, and volume is little, and cost is low, is suitable for the features such as industrial application.
Brief description of the drawings
Fig. 1 is the structural representation in the bipolar prickle coalescence district of a kind of embodiment of the bipolar prickle electricity coalescer of the utility model; Wherein, 1-air inlet, 2-gas outlet, 3-housing, 4-earth electrode, 41-ground connection pole plate, 42-ground connection prickle, 5-high-field electrode, 51-high-pressure polar plate, 52-high pressure prickle, 6-high-voltage ac power.
Detailed description of the invention
Further describe the utility model below in conjunction with embodiment and accompanying drawing thereof.
The bipolar prickle electricity coalescer of the utility model design (is called for short electric coalescer, referring to Fig. 1), it is characterized in that earth electrode 4 and high-voltage ac power 6 that high-field electrode 5 that this electricity coalescer mainly comprises housing 3, high-pressure polar plate 51 and high pressure prickle 52 and form, ground connection pole plate 41 and ground connection prickle 42 form, described earth electrode 4 is consistent two of shape and structure, and ground connection prickle 42 needle points of two earth electrodes 4 are relative, be arranged in abreast in two limits or two walls of housing 3 symmetries; Described high-field electrode 5 is parallel to each other and is equidistantly arranged on the centre of two earth electrodes 4, and high pressure prickle 52 be staggered layout relative to ground connection prickle 42 needle points; High-pressure polar plate 5 is connected with high-voltage ac power 6, and two ground connection pole plates 4 are all connected with ground.
Electric coalescer described in the utility model, it is characterized in that the arranged longitudinal and transverse spacing of described high pressure prickle on high-pressure polar plate equates, and longitudinal and transverse spacing is 20-120mm.
Electric coalescer described in the utility model, it is characterized in that the longitudinal and transverse spacing of described ground connection prickle on ground connection pole plate equates, and longitudinal and transverse spacing is 20-120mm.
Electric coalescer described in the utility model, the length that it is characterized in that described high pressure prickle is 8～20mm.
Electric coalescer described in the utility model, the diameter that it is characterized in that described high pressure prickle is 1.5-4mm.
Electric coalescer described in the utility model, the length that it is characterized in that described ground connection prickle is 8～35mm.
Electric coalescer described in the utility model, the diameter that it is characterized in that described ground connection prickle is 2-5mm.
Electric coalescer described in the utility model, is characterized in that described high-pressure polar plate is identical with the geomery of ground connection pole plate; The spacing of described ground connection pole plate and high-pressure polar plate is 25-150mm.
Electric coalescer described in the utility model, the output voltage that it is characterized in that described high-voltage ac power is 20-140kV, frequency is 5-120Hz.
The bipolar prickle electricity of the utility model coalescer operation principle is as follows: the flue gas that contains fine dust enters electric coalescer through air inlet 1, the high voltage electric field of electricity coalescer is supplied with by high-voltage ac power 6, near the tip of high pressure prickle 52, form corona, near ground connection prickle 42 is most advanced and sophisticated, form anti-corona, ground connection prickle 42 and high pressure prickle 52 carry out corona discharge simultaneously, and emit respectively heteropolarity electric charge, dust in alternating electric field by lotus with heteropolarity electric charge, Charged carries out coalescence under the effect of alternating electric field power simultaneously, make fine dust progressively form crude particle dust, crude particle dust after coalescence is discharged through gas outlet 2 with flue gas, enter into follow-up electrostatic precipitator, because the crude particle dust volume after coalescence is large, be easy to be trapped, remove by follow-up electrostatic precipitator.
The utility model electricity coalescer can be product independently, also can be used as parts and is fitted in electrostatic precipitator.Therefore the utility model electricity coalescer is particularly conducive to the upgrading of conventional electrostatic cleaner.In other words, the utility model also relates to a kind of electrostatic precipitator, it is characterized in that this deduster is fitted with bipolar prickle electricity coalescer described in the utility model.
The utility model electricity coalescer is generally positioned at the front portion of electrostatic precipitator, in order to form strong coalescence electric field, under the effect of alternation high voltage electric field, high pressure prickle 52 and ground connection prickle 42 produce respectively charges of different polarity corona simultaneously, make dust charge obtain heteropolarity electric charge, lotus has the dust collision efficiency of heteropolarity electric charge greatly to improve, and under action of alternative electric field, Charged moves reciprocatingly, further increase the collision efficiency of dust, efficiently complete coagulation required charged process, ensure the realization of final coalescence and dust removing effects.
The utility model is not addressed part and is applicable to prior art.
It is below specific embodiment of the utility model.Described embodiment only, for specifically describing the utility model, does not limit the protection domain of the application's claim.
Embodiment 1
Design an electric coalescer.Electricity coalescer is by housing 3, two the ground connection pole plates 4 and the high-field electrode 5 that are symmetricly set in housing 3 form, high-field electrode 5 is arranged between symmetrical upper and lower (certainly, can be also left and right) two earth electrodes 4, and heteropole distance between high-pressure polar plate 51 and ground connection pole plate 41 equates; Ground connection prickle 42 is with high pressure prickle 52 to interlaced arrangement, and high-pressure polar plate 51 is connected with the high-pressure stage of high-voltage ac power 6,2 equal ground connection of ground connection pole plate 41; Electric field is supplied with by high-voltage ac power 6.
The concrete structure parameter designing of this electricity coalescer is: housing 3 is cuboid, axially drive into gas port 1 and-gas outlet 2, the size of high-pressure polar plate 51 and ground connection pole plate 41 is 960 × 1025mm, high-pressure polar plate 51 and ground connection pole plate 41 etc. pitch spacing be 50mm, the length of high pressure prickle 51 is 8mm, the length of ground connection prickle 41 is 5mm, the diameter of high pressure prickle 52 and ground connection prickle 42 is 2.0mm, indulging of high pressure prickle 52, horizontal spacing is 20mm, indulging of ground connection prickle 42, horizontal spacing is 50mm, the rated output voltage of high-voltage ac power 6 is 35kV, frequency is 10Hz.
Through experiment, be 1.8m/s at the import wind speed of flue gas, giving powder concentration is 2.00g/m
3condition under, it is 1.8 that the dust volume that in flue gas, particle diameter is less than 7.0 μ m before and after coalescence occupies rate of change; It is 2.0 that the dust volume that particle diameter is less than 2.5 μ m occupies rate of change.
Embodiment 2
The structure of this electricity coalescer forms with embodiment 1.
The concrete structure parameter designing of this electricity coalescer is: housing 3 is cuboid, axially drive into gas port 1 and-gas outlet 2, the size of high-pressure polar plate 51 and ground connection pole plate 41 is 450 × 800mm, high-pressure polar plate 51 and ground connection pole plate 41 etc. pitch spacing be 150mm, the length of high pressure prickle 51 is 20mm, the length of ground connection prickle 41 is 10mm, the diameter of high pressure prickle 52 and ground connection prickle 42 is 3.0mm, indulging of high pressure prickle 52, horizontal spacing is 30mm, indulging of ground connection prickle 42, horizontal spacing is 30mm, the rated output voltage of high-voltage ac power 6 is 60kV, frequency is 50Hz.
Through experiment, be 1.8m/s at the import wind speed of flue gas, giving powder concentration is 3.00g/m
3condition under, it is 3.6 that the dust volume that in flue gas, particle diameter is less than 7.0 μ m before and after coalescence occupies rate of change; It is 4.2 that the dust volume that particle diameter is less than 2.5 μ m occupies rate of change.
Embodiment 3
The structure of this electricity coalescer forms with embodiment 1.
The concrete structure parameter designing of this electricity coalescer is: housing 3 is cuboid, axially drive into gas port 1 and-gas outlet 2, the size of high-pressure polar plate 51 and ground connection pole plate 41 is 600 × 960mm, high-pressure polar plate 51 and ground connection pole plate 41 etc. pitch spacing be 100mm, the length of high pressure prickle 51 is 15mm, the length of ground connection prickle 41 is 8mm, the diameter of high pressure prickle 52 and ground connection prickle 42 is 2.8mm, indulging of high pressure prickle 52, horizontal spacing is 80mm, indulging of ground connection prickle 42, horizontal spacing is 100mm, the rated output voltage of high-voltage ac power 6 is 120kV, frequency is 120Hz.
Through experiment, be 1.8m/s at the import wind speed of flue gas, giving powder concentration is 5.00g/m
3condition under, it is 3.6 that the dust volume that in flue gas, particle diameter is less than 7.0 μ m before and after coalescence occupies rate of change; It is 2.4 that the dust volume that particle diameter is less than 3.5 μ m occupies rate of change.
Claims (10)
1. a bipolar prickle electricity coalescer, this electricity coalescer mainly comprises the high-field electrode of housing, high-pressure polar plate and high pressure prickle formation and the earth electrode of ground connection pole plate and ground connection prickle formation, described earth electrode is consistent two of shape and structure, and the ground connection prickle needle point of two earth electrodes is relative, be arranged in abreast in two limits of housing symmetry, two ground connection pole plates are all connected with ground; Described high-field electrode is parallel to each other and is equidistantly arranged on the centre of two earth electrodes, and high pressure prickle be staggered layout relative to ground connection prickle needle point, characterized by further comprising high-voltage ac power, and described high-pressure polar plate is connected with high-voltage ac power.
2. bipolar prickle electricity coalescer according to claim 1, it is characterized in that the arranged longitudinal and transverse spacing of described high pressure prickle on high-pressure polar plate equates, and longitudinal and transverse spacing is 20-120mm.
3. bipolar prickle electricity coalescer according to claim 1, it is characterized in that the longitudinal and transverse spacing of described ground connection prickle on ground connection pole plate equates, and longitudinal and transverse spacing is 20-120mm.
4. bipolar prickle electricity coalescer according to claim 1, the length that it is characterized in that described high pressure prickle is 8～20mm.
5. bipolar prickle electricity coalescer according to claim 1, the diameter that it is characterized in that described high pressure prickle is 1.5-4mm.
6. bipolar prickle electricity coalescer according to claim 1, the length that it is characterized in that described ground connection prickle is 8～35mm.
7. bipolar prickle electricity coalescer according to claim 1, the diameter that it is characterized in that described ground connection prickle is 2-5mm.
8. bipolar prickle electricity coalescer according to claim 1, is characterized in that described high-pressure polar plate is identical with the geomery of ground connection pole plate; The spacing of described ground connection pole plate and high-pressure polar plate is 25-150mm.
9. bipolar prickle electricity coalescer according to claim 1, the output voltage that it is characterized in that described high-voltage ac power is 20-140kV, frequency is 5-120Hz.
10. an electrostatic precipitator, is characterized in that this deduster is fitted with the bipolar prickle electricity coalescer described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797129.0U CN203750697U (en) | 2013-12-04 | 2013-12-04 | Two-electrode barb electric coagulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797129.0U CN203750697U (en) | 2013-12-04 | 2013-12-04 | Two-electrode barb electric coagulator |
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| Publication Number | Publication Date |
|---|---|
| CN203750697U true CN203750697U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320797129.0U Expired - Fee Related CN203750697U (en) | 2013-12-04 | 2013-12-04 | Two-electrode barb electric coagulator |
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| Country | Link |
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| CN (1) | CN203750697U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623927A (en) * | 2013-12-04 | 2014-03-12 | 河北工业大学 | Bipolar prick electric coagulation device |
| CN109569884A (en) * | 2018-11-16 | 2019-04-05 | 常州大学 | A kind of alternating electric field coagulation and fine dust explosion suppression device and method |
-
2013
- 2013-12-04 CN CN201320797129.0U patent/CN203750697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623927A (en) * | 2013-12-04 | 2014-03-12 | 河北工业大学 | Bipolar prick electric coagulation device |
| CN109569884A (en) * | 2018-11-16 | 2019-04-05 | 常州大学 | A kind of alternating electric field coagulation and fine dust explosion suppression device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20171204 |