CN101339839A - High-frequency dust removing transformer - Google Patents
High-frequency dust removing transformer Download PDFInfo
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- CN101339839A CN101339839A CNA2008100254356A CN200810025435A CN101339839A CN 101339839 A CN101339839 A CN 101339839A CN A2008100254356 A CNA2008100254356 A CN A2008100254356A CN 200810025435 A CN200810025435 A CN 200810025435A CN 101339839 A CN101339839 A CN 101339839A
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- dedusting
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Abstract
The invention discloses a high-frequency dedusting transformer which comprises a low voltage winding, a high voltage winding and an iron core; the iron core takes a 'Square' shape which consists of two half-'Square' shapes in butt joint, and the iron core is made from ferrite material; the output voltage of the low voltage winding is 0.68kV, the output voltage of the high voltage winding is 66kV, and the working frequency of the transformer is 7-8kHz. The low voltage winding is wound by copper foil, the high voltage winding is of multi-pancake continuous type, and insulation and cooling are realized by transformer oil. Compared with the prior art, the high-frequency dedusting transformer has the advantages that the operation is stable, the dedusting efficiency is increased by about 20% relative to that of a power frequency transformer, the volume of the transformer is decreased by about 10%, which facilitates the installation of the whole set of equipment, and the high-frequency dedusting transformer is applicable to environment-friendly dedusting equipment.
Description
Technical field
The invention belongs to field transformer, specifically a kind of high-frequency dust removing transformer that is used for smoke dust-removing equipment.
Background technology
The combustion process of fuel such as coal, oil, natural gas is the most important generation source to the Atmospheric Transportation pollutant.China's air pollution belongs to coal-smoke pollution, and the pollution that caused by coal burning total amount accounts for 96% of whole fuel combustion discharge capacity, and a large amount of smoke contaminations sharply descends the city transparency, and the hours of daylight on daytime shortens, and has badly influenced human life and existence.Therefore, country has worked out a series of policies and regulations of Air Pollution prevention and control, and compulsive measures is taked in energy-saving and emission-reduction.Thereby, actively use new technology, reduce the generation and the discharging of pollutant, become the urgent problem of each relevant industries.
Administer coal-smoke pollution, electrostatic precipitation be consume energy less, efficient height, dust collection method that applicability is strong.Electrostatic precipitation can be removed the dust of 0.01～5 μ m in the flue gas.And the exhaust gas volumn of handling is big more, uses the investment and the operating cost of electrostatic dust collection equipment economical more.
The operation principle of electrostatic precipitator is to utilize high voltage electric field to make flue gas generation ionization, the dust-charge in the air-flow under electric field action with flow separation.The ratio resistance of dust is the index of estimating conductivity, and it has direct influence to ash removal efficiency.Lower excessively than resistance, grit is difficult to remain on the collecting electrode, causes it to return to air-flow.Than too high in resistance, the grit electric charge that arrives collecting electrode is difficult for emitting, and forms voltage gradient and can produce partial breakdown and electric discharge phenomena between knoisphere.These situations all can cause ash removal efficiency to descend.
The structure of electrostatic precipitator is seen accompanying drawing 1, and by transformer, rectifier bridge and dust arrester are formed.The quality of voltage of step-up transformer output is huge to the ash removal efficiency influence.The voltage height of power supply output also has a significant impact ash removal efficiency.Therefore, the electrostatic precipitator working voltage need keep 40-75kV and even more than the 100kV.
Step-up transformer in the existing electrostatic dust collection equipment all is an Industrial Frequency Transformer, and the operating frequency of this transformer is 50Hz, and input voltage is 0.4kV, and output voltage is 60～70kV.Therefore, the shortcoming of this transformer is: 1, because operating frequency is low, make waveform and the impedance matching of output voltage after rectification of transformer all be difficult to meet the dedusting requirement, too high at dust specific resistance, when producing partial discharge, output voltage influence to transformer is very big, and the fluctuation of transformer output voltage reduces ash removal efficiency greatly.2, under the fluctuation of frequent load current, except the efficient of dedusting also declines to a great extent, also can be affected the useful life of step-up transformer itself.
Summary of the invention
In order to overcome the problem that Industrial Frequency Transformer exists in the existing electrostatic dust collection equipment, the purpose of this invention is to provide a kind of high-frequency dust removing transformer, this high-frequency dust removing transformer operating frequency is 7～8kHz, input voltage is 0.68kV, output voltage is 66kV, and transformer operates steadily, and ash removal efficiency improves about about 20% than Industrial Frequency Transformer, it is about 10% that the volume of transformer also reduces, and is convenient to the installation of complete equipment.
The objective of the invention is to be achieved through the following technical solutions:
A kind of high-frequency dust removing transformer comprises low pressure winding, high pressure winding and iron core, it is characterized in that: described iron core is formed " mouth " word shape by the butt joint of two and half " mouth " shape, and iron core is made by Ferrite Material; The input voltage of low pressure winding is 0.68kV; The output voltage of high pressure winding is 66kV; The operating frequency of transformer is 7～8kHz.
Among the present invention, described low pressure winding adopt paper tinsel around, the high pressure winding adopts the equipped structure of the winding of many cakes continous way.
Transformer operating frequency of the present invention is 7～8kHz, and input voltage is 0.68kV, and output voltage is 66kV.Iron core adopts Ferrite Material, and forms " mouth " font by two and half " mouths " butt joint.The low pressure winding adopt paper tinsel around, the high pressure winding adopts many cakes continous way.Transformer oil is adopted in insulation and cooling.
The present invention has changed the waveform of operating frequency, input voltage and the output voltage of original Industrial Frequency Transformer, solve the problem that existing Industrial Frequency Transformer exists in dust removal process, made waveform and the impedance matching of output voltage after rectification of transformer can both meet the dedusting requirement.The delivery efficiency of transformer can not reduce because of the character of dust yet; Compared with prior art, the present invention operates steadily, and ash removal efficiency improves about about 20% than Industrial Frequency Transformer, and it is about 10% that the volume of transformer also reduces, and is convenient to the installation of complete equipment.
Description of drawings
Fig. 1 is the structural representation of existing electrostatic precipitator;
Fig. 2 is an outline drawing of the present invention;
Fig. 3 is an internal structure schematic diagram of the present invention;
Fig. 4 is a structural representation unshakable in one's determination among the present invention.
Embodiment
A kind of high-frequency dust removing transformer of the present invention comprises low pressure winding 1, high pressure winding 2 and unshakable in one's determination 3, unshakable in one's determination 3 by the butt joint of two and half " mouth " shape and form " mouth " word shape, and iron core 3 is made by Ferrite Material.The input voltage of low pressure winding 1 is 0.68kV; The output voltage of high pressure winding 2 is 66kV; The operating frequency of transformer is 7～8kHz.
The low pressure winding adopt Copper Foil around, the high pressure winding adopts the equipped structure of the winding of many cakes continous way.Low pressure winding 1, high pressure winding 2 and unshakable in one's determination 3 are fixed by folder 4.Transformer oil is adopted in insulation and cooling.
The present invention has thoroughly solved the problem that existing Industrial Frequency Transformer exists in dust removal process, make waveform and the impedance matching of output voltage after rectification of transformer can both meet the dedusting requirement, the present invention operates steadily, ash removal efficiency improves about about 20% than Industrial Frequency Transformer, and the volume of transformer also reduces approximately 10%, is convenient to the installation of complete equipment.
Claims (2)
1, a kind of high-frequency dust removing transformer, comprise low pressure winding (1), high pressure winding (2) and (3) unshakable in one's determination, it is characterized in that: described iron core (3) is formed " mouth " word shape by the butt joint of two and half " mouth " shape, and (3) unshakable in one's determination are made by Ferrite Material; The input voltage of low pressure winding (1) is 0.68kV; The output voltage of high pressure winding (2) is 66kV; The operating frequency of transformer is 7～8kHz.
2, a kind of high-frequency dust removing transformer according to claim 1 is characterized in that: described low pressure winding (1) adopt paper tinsel around, high pressure winding (2) adopts the equipped structure of the winding of many cakes continous way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100254356A CN101339839A (en) | 2008-04-28 | 2008-04-28 | High-frequency dust removing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100254356A CN101339839A (en) | 2008-04-28 | 2008-04-28 | High-frequency dust removing transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101339839A true CN101339839A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100254356A Pending CN101339839A (en) | 2008-04-28 | 2008-04-28 | High-frequency dust removing transformer |
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| CN (1) | CN101339839A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887795A (en) * | 2010-07-07 | 2010-11-17 | 江苏天力电气有限公司 | High frequency dust removing dry type transformer |
| CN102290222A (en) * | 2011-04-28 | 2011-12-21 | 南京国电环保设备有限公司 | High-power, high-frequency and high-voltage rectifier transformer |
| CN102436911A (en) * | 2011-12-07 | 2012-05-02 | 扬州新概念电气有限公司 | AC high-frequency transformer |
| CN103310055A (en) * | 2013-06-13 | 2013-09-18 | 镇江天力变压器有限公司 | Method of designing high-frequency high-voltage transformer for electrostatic dust collection |
| CN104021916A (en) * | 2014-06-06 | 2014-09-03 | 合肥雷科电子科技有限公司 | High-power floating high-voltage reconstructive combined type high-frequency and high-voltage rectifier transformer |
| CN104916403A (en) * | 2015-07-03 | 2015-09-16 | 江苏容天机电科技有限公司 | Forced air-cooled dedusting transformer |
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN110491659A (en) * | 2019-07-22 | 2019-11-22 | 辽宁中能电力实业集团有限责任公司 | 66kV(110kV) voltage class wind power generation boosting transformer |
-
2008
- 2008-04-28 CN CNA2008100254356A patent/CN101339839A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887795A (en) * | 2010-07-07 | 2010-11-17 | 江苏天力电气有限公司 | High frequency dust removing dry type transformer |
| CN102290222A (en) * | 2011-04-28 | 2011-12-21 | 南京国电环保设备有限公司 | High-power, high-frequency and high-voltage rectifier transformer |
| CN102436911A (en) * | 2011-12-07 | 2012-05-02 | 扬州新概念电气有限公司 | AC high-frequency transformer |
| CN103310055A (en) * | 2013-06-13 | 2013-09-18 | 镇江天力变压器有限公司 | Method of designing high-frequency high-voltage transformer for electrostatic dust collection |
| CN103310055B (en) * | 2013-06-13 | 2015-12-09 | 镇江天力变压器有限公司 | A kind of method for designing of high-frequency high-voltage transformer for electrostatic dust collection |
| CN104021916A (en) * | 2014-06-06 | 2014-09-03 | 合肥雷科电子科技有限公司 | High-power floating high-voltage reconstructive combined type high-frequency and high-voltage rectifier transformer |
| CN104021916B (en) * | 2014-06-06 | 2016-03-09 | 合肥雷科电子科技有限公司 | High-power floating high pressure restructural composite type high-frequency and high-voltage rectifier transformer |
| CN104916403A (en) * | 2015-07-03 | 2015-09-16 | 江苏容天机电科技有限公司 | Forced air-cooled dedusting transformer |
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN110491659A (en) * | 2019-07-22 | 2019-11-22 | 辽宁中能电力实业集团有限责任公司 | 66kV(110kV) voltage class wind power generation boosting transformer |
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Open date: 20090107 |