CN205236183U - Static oil smoke clarification plant's power supply unit - Google Patents
Static oil smoke clarification plant's power supply unit Download PDFInfo
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- CN205236183U CN205236183U CN201521009611.9U CN201521009611U CN205236183U CN 205236183 U CN205236183 U CN 205236183U CN 201521009611 U CN201521009611 U CN 201521009611U CN 205236183 U CN205236183 U CN 205236183U
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- oil smoke
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Abstract
The utility model discloses a static oil smoke clarification plant's power supply unit, including high voltage power supply, its characterized in that: still include the switching circuit, high voltage power supply's positive pole is connected to the first input end of switching circuit, and high voltage power supply's negative pole is connected to the second input of switching circuit, and the output of switching circuit is used for being connected to the voltage end of static oil smoke clarification plant's collection dirt module, and first input end, second input optionally switch on with the output. Through making the voltage of collection dirt module serve the voltage polarity alternation who applys to can make that the electric quantity no longer increased when the electric charge of oil smoke gathered the certain degree on album polar plate of dirt module, but the fadeaway, thereby the anti - corona phenomenon of unlikely production keeps that electrostatic devices's remove oil smoke efficiency, the oil smoke particulate matter that makes the negative electrification is to the polar plate motion of difference and by the entrapment under the effect of electric field force, very big improvement collect the utilization ratio of the polar plate of dirt module, and then lengthened static oil smoke clarification plant's cleaning interval.
Description
Technical field
The utility model relates to a kind of equipment for purifying oil-fume, especially a kind of confession Denso of equipment for purifying oil-fumePut.
Background technology
Electrostatic precipitator is to utilize the highfield applying in body that gas is ionized, and produces corona discharge, and then makesPowder dust particle is charged, and under the effect of electric field force, the dedusting that powder dust particle is separated and trapped from gasDevice. Electrostatic precipitation is widely used in fume purifying field, has very high clearance, but due to oil smoke itselfAdhesiveness determines after it is captured to be difficult to come off from pole plate by modes such as rappings, and the greasy dirt on pole plate is along with service timeAnd increase. In the time that the oil smoke on pole plate runs up to a certain degree, may produce two kinds of situations: produce back corona phenomenon and thenEfficiency of dust collection is declined, and deduster needs frequent clean.
The range of application of electric cleaner is subject to the restriction of dust specific resistance, and general electric cleaner optimum trapping than resistance isThe powder dust particle of 104-1011 Ω cm. Be less than 104 (low resistivities) or be greater than 1011 Ω cm for purification ratio resistanceThe powder dust particle of (high specific resistance), efficiency of dust collection will significantly decline. For high resistivity dust, anti-corona effect isAffect the maximum unfavorable factor of electric precipitator performance, its mechanism is if adopt negative corona discharge, when the dust of high specific resistanceEnter electric-field charge, and arrive dust collecting pole plate under electric field force effect after, due to its volume resistance or surface conductive resistanceLarger, make its institute's electrically charged can not successfully release and remaining on dust, this just makes to go out between dust layer and dust collecting pole plateAn existing short-range additional electric field. Due to the existence of this additional electric field, make dust firmly be adsorbed on dust collector pole on the one handOn plate, be difficult for shaking; On the other hand, As time goes on, more Charged arrives dust collecting pole plate, and dust layer moreLong-pending thicker, negative electrical charge wherein also more poly-the more, make the additional electric field that exists between dust layer and pole plate more and more strong. ?After, finally make the gas in certain dust layer space, region start ionization, form anti-electric-corona discharge. Now, produceElectronics and anion are attracted to dust collecting pole plate, and cation repels because of dust collecting pole plate, to the space of gathering dust. Because anti-corona is putThe continuous generation of electricity, positive charge is constantly outwards overflowed, and it has neutralized the electric charge near the electronegative dust of dust collecting pole plate,Make the movement velocity step-down of these dust, wherein a part has little time to arrive dust collecting pole plate and is taken out of electric field by air-flow, fromAnd reduce the efficiency of dedusting.
For this reason, also have some solutions, as open in the Chinese patent application that application number is 200710157127.4A kind of method that detects and suppress electrostatic precipitation back corona phenomenon, utilize the mode of intermittent power supply, make powder on collecting polar plateThe electric charge of dirt accumulation has time enough electric discharge, be unlikely to produce too high voltage difference, so just can avoid anti-coronaOccur; The disclosed a kind of electrostatic precipitation high-voltage pulse of Chinese patent application that and for example application number is 201410512554.X suppliesElectric system, comprises the pulse generating circuit of fundamental power supply circuit and mutual series connection identical with at least two groups, when pulse generation electricityThe feeder ear on road is not when voltage pulse output, and fundamental power supply circuit is exported basic voltage to load, when pulse generating circuit defeatedWhile going out pulse voltage, the backward load output that superposes of pulse voltage and basic voltage. But these methods all may reduce and removeThe effective acting time of dirt device; And stick to the accumulation of oil smoke on battery lead plate make dust arrester need regular dismounting andClean, the difficulty of cleaning is large, and may bring security risk.
Utility model content
Technical problem to be solved in the utility model is the problem existing for above-mentioned prior art, provides a kind of raising quietThe efficiency of dust collection of electricity cooking fume control equipment, the electric supply installation of prolongation cleaning frequency.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of power supply of equipment for purifying oil-fumeDevice, comprises high voltage source, it is characterized in that: also comprise commutation circuit, described in the positive pole of described high voltage source is connected toThe first input end of commutation circuit, the negative pole of described high voltage source is connected to the second input of described commutation circuit, described inThe output of commutation circuit is for being connected to the voltage end of dust collection module of described equipment for purifying oil-fume, described first defeatedEnter end, the second input optionally with described output conducting.
In the utility model, preferred, in described commutation circuit, be provided with high voltage bearing relay, touch by relayPoint disconnection and conducting by first input end, the second input optionally with output conducting.
Further, relay adopts high voltage bearing single-pole single-throw(SPST relay, easy switching, stable, described relay packDraw together the first relay and the second relay, the first contact of described the first relay forms described first input end, and describedThe first contact of two relays forms described the second input, the second contact of described the first relay and the second relayThe second contact is connected to each other and jointly forms described output.
Compared with prior art, the utility model has the advantage of: by the electricity that makes to apply on the voltage end of dust collection modulePressure alternating polarity changes, thereby can make the electric charge of oil smoke on the pole plate of dust collection module gather to a certain extent time, electric weight no longerIncrease, but fade away, thus unlikely generation back corona phenomenon, the fume eliminating efficiency of maintenance electrostatic equipment; Make band negativeThe smoke particle thing of electricity moves and is captured to different pole plates under the effect of electric field force, has improved greatly dust collection moduleThe utilization rate of pole plate, and then extended cleaning frequency of equipment for purifying oil-fume.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of electric supply installation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Referring to Fig. 1, a kind of electric supply installation of equipment for purifying oil-fume, comprises high voltage source 1 and commutation circuit 2, heightThe positive pole of voltage source 1 and negative pole are connected respectively to first input end IN1 and the second input IN2 of commutation circuit 2, thisIn utility model, equipment for purifying oil-fume adopts modular design, comprises ionization module and dust collection module, and this is for existingThere is technology, repeat no more, the dust collection module 3 that load is equipment for purifying oil-fume. The output OUT of commutation circuit 2Be connected to the voltage end of the dust collection module 3 of equipment for purifying oil-fume, and the other end ground connection of dust collection module 3. SwitchCircuit 2 (is first input end by the output OUT alternate conduction of the positive pole of high voltage source 1, negative pole and commutation circuit 2IN1, the second input IN2 respectively with output OUT alternate conduction), thereby in the load of equipment for purifying oil-fumeBetween form positive or negative high voltage electricity over the ground.
In the utility model preferred embodiment, commutation circuit 2 comprises high voltage bearing, single-pole single-throw(SPST the first relayK1 and the second relay K 2, the positive pole of high voltage source 1 is connected to the first contact (first input end of the first relay K 1IN1), the negative pole of high voltage source 1 is connected to first contact (the second input IN2) of the second relay K 2, the first relayThe second contact of the second contact of device K1 and the second relay K 2 is connected to each other and jointly forms above-mentioned output OUT.By the first relay K 1 and the second relay K 2 separately two contacts be alternately closed conducting, just can be formed on collectionThe switching of the positive or negative high voltage electric field that dirt module is 3, thus carry out the switching dust collection function of dust collection module 3.
When use, open high voltage source 1, as make the first relay K 1 conducting of commutation circuit 2, work as static fumeAfter cleaning equipment work a period of time, the part pole plate on dust collection module 3 has been collected oil smoke, may produce back corona phenomenonAnd cause fume purifying Efficiency Decreasing, now the first relay K 1 in the work of commutation circuit 2 is disconnected, and secondRelay K 2 conductings, the voltage reversal applying on dust collection module 3, opens the part pole plate that does not originally play dust agglutinationThe trapping smoke particle that begins, the part pole plate that originally played dust agglutination is idle, adsorb oil smoke on it with electric charge quiltNeutralization. So periodically change collection of (or, can be also periodicity, the time interval replacing is selected as required)In dirt module 3, voltage is positive and negative, changes direction of an electric field, thereby reaches following object: make on the pole plate of dust collection module 3When the electric charge of oil smoke gathers to a certain extent, electric weight no longer increases, but fades away, thus unlikely generation back corona phenomenon,Keep the fume eliminating efficiency of electrostatic equipment; Electronegative smoke particle thing is transported to different pole plates under the effect of electric field forceMove and be captured, having improved greatly the utilization rate of the pole plate of dust collection module 3, and then extended equipment for purifying oil-fumeCleaning frequency.
Alternative, commutation circuit 2 also can adopt other structures, as it is above-mentioned to adopt a single-pole double throw relay to replaceTwo single-pole single-throw(SPST relays, the negative or positive electrode of equally optionally conducting high voltage source 1, or all rightUse other high-voltage switch gears, as high voltage bearing triode, controllable silicon etc.
Claims (3)
1. an electric supply installation for equipment for purifying oil-fume, comprises high voltage source (1), it is characterized in that: also comprise and cuttingChange circuit (2), the positive pole of described high voltage source (1) is connected to the first input end (IN1) of described commutation circuit (2), described heightThe negative pole of voltage source (1) is connected to second input (IN2) of described commutation circuit (2), the output of described commutation circuit (2)(OUT) for being connected to the voltage end of dust collection module (3) of described equipment for purifying oil-fume, described first input end(IN1), the second input (IN2) optionally with described output (OUT) conducting.
2. the electric supply installation of equipment for purifying oil-fume as claimed in claim 1, is characterized in that: described switching electricityRoad is provided with high voltage bearing relay in (2).
3. the electric supply installation of equipment for purifying oil-fume as claimed in claim 2, is characterized in that: described relayComprise the first relay (K1) and the second relay (K2), the first contact of described the first relay (K1) forms described firstInput (IN1), the first contact of described the second relay (K2) forms described the second input (IN2), and described first continuesThe second contact of the second contact of electrical equipment (K1) and the second relay (K2) is connected to each other and jointly forms described output(OUT)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009611.9U CN205236183U (en) | 2015-12-07 | 2015-12-07 | Static oil smoke clarification plant's power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009611.9U CN205236183U (en) | 2015-12-07 | 2015-12-07 | Static oil smoke clarification plant's power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205236183U true CN205236183U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009611.9U Active CN205236183U (en) | 2015-12-07 | 2015-12-07 | Static oil smoke clarification plant's power supply unit |
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| CN (1) | CN205236183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839042A (en) * | 2017-03-31 | 2017-06-13 | 广东美的厨房电器制造有限公司 | Electrostatic equipment and lampblack absorber |
-
2015
- 2015-12-07 CN CN201521009611.9U patent/CN205236183U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839042A (en) * | 2017-03-31 | 2017-06-13 | 广东美的厨房电器制造有限公司 | Electrostatic equipment and lampblack absorber |
| CN106839042B (en) * | 2017-03-31 | 2019-04-16 | 广东美的厨房电器制造有限公司 | Electrostatic equipment and kitchen ventilator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |