CN203425921U - Power supply component for electric dust remover and electric dust remover - Google Patents
Power supply component for electric dust remover and electric dust remover Download PDFInfo
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- CN203425921U CN203425921U CN201320496789.5U CN201320496789U CN203425921U CN 203425921 U CN203425921 U CN 203425921U CN 201320496789 U CN201320496789 U CN 201320496789U CN 203425921 U CN203425921 U CN 203425921U
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- electric
- power supply
- high frequency
- electric field
- supply module
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Abstract
The utility model discloses a power supply component for an electric dust remover and the electric dust remover. The power supply component comprises a plurality of high-frequency power supplies, wherein the plurality of high-frequency power supplies are used for supplying power to a plurality of electric fields of the electric dust remover; in the plurality of high-frequency power supplies, a first high-frequency power supply and a second high-frequency power supply are used for supplying power to two first electric fields respectively; a third high-frequency power supply supplies power to two second electric fields; a fourth high-frequency power supply supplies power to two third electric fields or two fourth electric fields. The power supply component disclosed by the utility model has the advantages that by the technical scheme, the high-frequency power supplies are used for supplying power to the electric fields of the electric dust remover, and the high-frequency power supplies are narrow in pulse and wide in adjusting range, so that the dust removing efficiency for dust with high specific resistance is higher and the overall efficiency and the power factor of the electric dust remover equipment can be increased.
Description
Technical field
The utility model relates to gas purification and separation field, particularly, relates to a kind of power supply module for electric cleaner and electric cleaner.
Background technology
The electric cleaner that current domestic power plant is used mostly uses power frequency supply.Power frequency supply has the shortcomings such as average voltage electric current is little, volume is large, weight is large.Use the electric cleaner of power frequency supply power supply poor to the efficiency of dust collection of high resistivity dust, power factor is only 0.7 left and right.
Along with energy-conserving and environment-protective come into one's own day by day, along with deepening constantly of reform in the power sector, reduce station service power consumption rate, reduce cost of electricity-generating, become the economic goal that power plant lays siege to.Electric cleaner is the important auxiliary device in power plant, is also high current consuming apparatus.Can electric cleaner normally move, concerning enterprise, normally fulfil the social responsibility of environmental protection.If guaranteeing, under efficiency of dust collection prerequisite up to standard, can to lower power consumption again, can realize the double benefit of economy and society.Some power plant, by mode and the rectification variable element of the number that puts into operation of Electric Field in ESP, rapping operation are optimized to adjustment, reduced the power consumption of electric cleaner to a certain extent, also reduced the percentage that electric precipitation power consumption accounts for unit output simultaneously.Yet the power consumption of the electric cleaner after optimization is still larger, proceed energy-conservation space but very limited.
For the problems referred to above, in prior art, there is no good solution.
Utility model content
The purpose of this utility model is to provide a kind of equipment, and this equipment makes electric cleaner just can have same as the prior art or higher efficiency of dust collection with less power consumption.
To achieve these goals, the utility model provides a kind of power supply module for electric cleaner, described power supply module comprises: a plurality of high frequency electric sources, for powering to a plurality of electric fields of described electric cleaner by cable, in wherein said a plurality of high frequency electric source: the first high frequency electric source and the second high frequency electric source are respectively to two electric field power supplies, third high frequency power is to two two electric field power supplies, and the 4th high frequency electric source is to two three electric field power supplies or to two four electric field power supplies.
Between described two three electric fields and between described two four electric fields, by ethylene propylene rubber insulated cable, connect alternatively, between described two two electric fields.
Alternatively, this power supply module comprises isolating switch, for switching described the 4th high frequency electric source to described two three electric field power supplies or to described two four electric field power supplies.
Alternatively, the quantity of described isolating switch is two, and two described isolating switches are arranged on respectively in the circuit between described the 4th high frequency electric source and described two three electric fields, and in the circuit between described the 4th high frequency electric source and described two four electric fields.
Alternatively, described power supply module also comprises controller, and this controller is used for controlling described isolating switch conducting or disconnection.
Alternatively, electric field is electric field chamber.
According to another aspect of the present utility model, also provide a kind of electric cleaner, this electric cleaner comprises a plurality of electric fields and above-mentioned power supply module.
Alternatively, electric field is electric field chamber.
Pass through technique scheme, use high frequency electric source to the electric field power supply of electric cleaner, because high frequency electric source has, pulse is narrow, adjustable range is wide, therefore high resistivity dust is had to higher efficiency of dust collection, can improve whole efficiency and the power factor of electric cleaner equipment.
Other feature and advantage of the present utility model partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the power supply module schematic diagram for electric cleaner according to an embodiment of the utility model; And
Fig. 2 is the power supply module schematic diagram for electric cleaner according to another embodiment of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
Fig. 1 is the power supply module schematic diagram for electric cleaner according to an embodiment of the utility model.As shown in Figure 1, according to a kind of power supply module for electric cleaner of the present utility model, comprising: a plurality of high frequency electric source U
1-n, for powering to a plurality of electric fields of described electric cleaner by cable, wherein said a plurality of high frequency electric source U
1-nin: the first high frequency electric source U
1with the second high frequency electric source U
2to two electric field 10 power supplies, third high is U frequently respectively
3power supply is to two two electric field 20 power supplies, and the 4th high frequency electric source U
4to two three electric field 30 power supplies or to two four electric field 40 power supplies.
Pass through technique scheme, use high frequency electric source to the electric field power supply of electric cleaner, because high frequency electric source has, pulse is narrow, adjustable range is wide, therefore high resistivity dust is had to higher efficiency of dust collection, can improve whole efficiency and the power factor of electric cleaner equipment.
Use high frequency electric source to power to a plurality of electric fields, wherein, the first high frequency electric source U
1with the second high frequency electric source U
2respectively to two electric field 10 power supply, i.e. " one-to-one " power supply modes; Third high is U frequently
3power supply is to two two electric field 20 power supplies, i.e. " one drag two " power supply mode, and the 4th high frequency electric source U
4to two three electric field 30 power supplies or to two four electric field 40 power supply, i.e. " one drags four " power supply modes.Therefore because electric field 10 place's dust concentrations of electric cleaner are the highest, in above-mentioned power supply mode, to two electric fields 10, adopting the power supply mode of " one-to-one " can guarantee two one, electric fields 10 are stable effectively the dust through electric field is adsorbed.And consider the cost of high frequency electric source and the maintenance needs of equipment, to two two electric fields 20, adopt the power supply mode of " one drag two " can save equipment cost, power supply mode to two three electric fields 30 and two four electric fields 40 employings " drags four " can be when saving equipment cost, be convenient to maintenance of equipment, for example, three electric fields 30, four electric fields 40 1 are used one standby, two electric fields are the standby reliability that also improves equipment each other.In one embodiment, this power supply module can comprise isolating switch K, for switching described the 4th high frequency electric source U
4to described two three electric field 30 power supplies or to described two four electric field 40 power supplies.
Fig. 2 is the power supply module schematic diagram for electric cleaner according to another embodiment of the utility model.As shown in Figure 2, in one embodiment, for switching described the 4th high frequency electric source U
4the quantity of the isolating switch of powering or powering to described two four electric fields 40 to described two three electric fields 30 can be two, two described isolating switch K
1and K
2be arranged on respectively described the 4th high frequency electric source U
4and in the circuit between described two three electric fields 30, and at described the 4th high frequency electric source U
4and in the circuit between described two four electric fields 40.By above-mentioned isolating switch K
1and K
2with to using two three electric fields 30 or using two four electric fields 40 to switch.
Between described two three electric fields 30 and between described two four electric fields 40, can connect by ethylene propylene rubber insulated cable in one embodiment, between described two two electric fields 20.One preferred embodiment in, described power supply module also comprises controller (not shown), this controller can be for controlling described isolating switch conducting or disconnection.It should be noted that, the controller using in the present embodiment can be conventional for controlling equipment or the device of isolating switch in prior art.
According to another aspect of the present utility model, also provide a kind of electric cleaner, this electric cleaner can comprise a plurality of electric fields and above-mentioned power supply module.According to this, use novel electric cleaner, use high frequency electric source to the electric field power supply of electric cleaner, high resistivity dust is had higher efficiency of dust collection and various dust are all had to good dust collection capacity, whole efficiency is high, equipment cost is lower.
Below in conjunction with a specific embodiment to further illustrating according to principle of the present utility model.
In certain power plant 2 * 500MW unit, electric cleaner is double-deck two chambers six electric field electric cleaners, and design efficiency of dust collection is 98.2～99%, design exit concentration 120-400mg/m
3.The power supply module that use provides according to the utility model is to the transformation of powering of this pair of chamber six electric field electric cleaners, wherein: the first high frequency electric source and the second high frequency electric source are respectively to two electric field power supplies, third high frequency power is to two two electric field power supplies, and the 4th high frequency electric source is to two three electric field power supplies or to two four electric field power supplies; Five electric fields and six electric field power supply modes (power frequency supply power supply) are not made and changed.In the present embodiment, can use the high frequency electric source that model is GGYAj-1.2A/66Kv, its frequency can be 30-40kHz.
Compare with power frequency 50/60Hz high voltage source, output voltage ripple during the pure direct current supply of high frequency electric source is less than 5% conventionally, ripple percentage much smaller than power frequency supply 35%～45%, its flashover voltage is high, operation average voltage can reach 1.3 times of power frequency supply, and running current can reach 2 times of power frequency supply, in same electric field, more power can be inputted, thereby dust-collecting efficiency can be effectively improved.
According to inventor actual measurement, use according to the electric cleaner of power supply module of the present utility model, with power consumption still less, obtained higher efficiency of dust collection.Wherein, dedusting power consumption is reduced to 334.1kW/h, reduces the about 400kW/h of electric cleaner power consumption, reduces by 53.6%, and by annual 7000 hours, 0.44 yuan of calculating of every degree electricity, can save 135.5 ten thousand yuan every year.Before using according to power supply module of the present utility model, export smoke density for 52mg/Nm
3, after transformation, outlet smoke density is 25mg/Nm
3, former efficiency of dust collection is 99.61%, after transformation, efficiency of dust collection is 99.83%, reduces smoke density more than 50%.
While using conventional power frequency supply, the charging interval is generally limited at 3.1ms, and use, according to power supply module of the present utility model, the charging interval can be relaxed to 9.8ms, can have good dust removing effects to high resistivity dust.Utilize the adaptability of high frequency electric source to various dust, in power plant produces, can consider to mix and burn some ash coal large, low in calories, can save coal-fired expense, thereby further save production cost.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.For example, electric field can be changed into electric field chamber, that is, can replace a described electric field with an electric field chamber, with two electric field chambers, replace described two electric fields, with three electric field chambers, replace described three electric fields, and replace described four electric fields with four electric field chambers.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present utility model, also can be combined, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (8)
1. for a power supply module for electric cleaner, it is characterized in that, described power supply module comprises:
A plurality of high frequency electric sources, for powering to a plurality of electric fields of described electric cleaner by cable, wherein
In described a plurality of high frequency electric source: the first high frequency electric source and the second high frequency electric source are respectively to two electric field power supplies, and third high frequency power is to two two electric field power supplies, and the 4th high frequency electric source is to two three electric field power supplies or to two four electric field power supplies.
2. power supply module according to claim 1, is characterized in that, between described two two electric fields, connect by ethylene propylene rubber insulated cable between described two three electric fields and between described two four electric fields.
3. power supply module according to claim 1, is characterized in that, this power supply module comprises isolating switch, for switching described the 4th high frequency electric source to described two three electric field power supplies or to described two four electric field power supplies.
4. power supply module according to claim 3, it is characterized in that, the quantity of described isolating switch is two, two described isolating switches are arranged on respectively in the circuit between described the 4th high frequency electric source and described two three electric fields, and in the circuit between described the 4th high frequency electric source and described two four electric fields.
5. power supply module according to claim 3, is characterized in that, described power supply module also comprises controller, and this controller is used for controlling described isolating switch conducting or disconnection.
6. according to the power supply module described in any one claim in claim 1-5, it is characterized in that, described electric field is configured to electric field chamber.
7. an electric cleaner, is characterized in that, this electric cleaner comprises a plurality of electric fields and according to the power supply module described in any one claim in claim 1-5.
8. electric cleaner according to claim 7, is characterized in that, electric field is configured to electric field chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496789.5U CN203425921U (en) | 2013-08-14 | 2013-08-14 | Power supply component for electric dust remover and electric dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496789.5U CN203425921U (en) | 2013-08-14 | 2013-08-14 | Power supply component for electric dust remover and electric dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203425921U true CN203425921U (en) | 2014-02-12 |
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ID=50054985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320496789.5U Expired - Lifetime CN203425921U (en) | 2013-08-14 | 2013-08-14 | Power supply component for electric dust remover and electric dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203425921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3338894A1 (en) * | 2016-12-22 | 2018-06-27 | Valmet Technologies Oy | Method and arrangement |
| CN112007758A (en) * | 2020-07-17 | 2020-12-01 | 西安西矿环保科技有限公司 | System and method for mutually redundant power supply of adjacent electric fields of electric dust collector |
-
2013
- 2013-08-14 CN CN201320496789.5U patent/CN203425921U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3338894A1 (en) * | 2016-12-22 | 2018-06-27 | Valmet Technologies Oy | Method and arrangement |
| US20180178222A1 (en) * | 2016-12-22 | 2018-06-28 | Valmet Technologies Oy | Method and arrangement |
| US10751729B2 (en) * | 2016-12-22 | 2020-08-25 | Valmet Technologies Oy | Electrostatic precipitor |
| CN112007758A (en) * | 2020-07-17 | 2020-12-01 | 西安西矿环保科技有限公司 | System and method for mutually redundant power supply of adjacent electric fields of electric dust collector |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |