CN103986343B - High-power intermediate frequency segmented high-voltage rectifying transformer - Google Patents

High-power intermediate frequency segmented high-voltage rectifying transformer Download PDF

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CN103986343B
CN103986343B CN201410241436.XA CN201410241436A CN103986343B CN 103986343 B CN103986343 B CN 103986343B CN 201410241436 A CN201410241436 A CN 201410241436A CN 103986343 B CN103986343 B CN 103986343B
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iron core
transformer
armature winding
secondary windings
rectifier bridge
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CN103986343A (en
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赵文波
陈�峰
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Jiangsu Rong Tian Electromechanical Technology Co Ltd
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Jiangsu Rong Tian Electromechanical Technology Co Ltd
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Abstract

The invention discloses a kind of high-power intermediate frequency segmented high-voltage rectifying transformer, this transformer includes iron core, armature winding, secondary windings, rectifier bridge and oil tank of transformer;Armature winding is enclosed within iron core rod, secondary windings is sleeved on outside armature winding and iron core, armature winding is wound on primary skeleton by 14 sections of Copper Foils, secondary windings is wound on secondary framework by 1 40 sections of copper cash or aluminum steel, and the supporting rectifier bridge corresponding with each coil respectively of 1 40 sections of coils in secondary windings connects.Operating frequency range is up to 50~1000Hz, simultaneously can on 50~1000Hz the signal of the 10kHz~20kHz of superposition frequency again, its direct current output rated voltage scope is up to 60~120kV, and output rated power is not less than 80kW, the temperature rise≤80k run continuously at full capacity.Volume of the present invention is little, lightweight, simple in construction, is the ideal equipment of large-scale electrostatic precipitation high voltage power supply.

Description

High-power intermediate frequency segmented high-voltage rectifying transformer
Technical field
The invention belongs to special transformer and manufacture field, a kind of high-power intermediate frequency segmented high-voltage rectifying becomes Depressor.
Background technology
In recent years, along with China's power industry is fast-developing, electrical network scale is increasing, and the environment with coal as fuel is dirty Dye problem is more and more prominent, produces a large amount of dust after fire coal, and the common equipment administering dust is exactly electric cleaner, and current country is just Formulating higher atmospheric aerosol discharge standard, the critical component-transformer of electric cleaner is being proposed requirements at the higher level.At present Electrostatic precipitation high-voltage rectifying transformer operating frequency mostly be power frequency 50Hz or high frequency 10kHz~20kHz.The height of power frequency 50Hz Voltage adjustment rectifier transformer, volume is big, and loss height, efficiency is low, and the efficiency of dust collection causing deduster is low.And high frequency 10kHz~20kHz High-voltage rectifying transformer reactive power is higher, and active power is lower slightly, and the efficiency of dust collection also resulting in deduster is low.
Summary of the invention
For the problem overcoming existing above-mentioned transformer to exist, it is an object of the invention to provide a kind of high-power intermediate frequency segmentation Formula high-voltage rectifying transformer, this transformer efficiency is more than 80kW, superposition frequency again in input service frequency range 50~1000Hz 10kHz~20kHz, 380~480V alternating voltages, output DC rated voltage scope is up to 60~120kV.Can appoint not increasing In the case of what expense, original place substitutes current power frequency 50Hz and high frequency 10kHz~20kHz high-voltage rectifying transformer, improves and removes The efficiency of dust collection of dirt device.
It is an object of the invention to be achieved through the following technical solutions:
A kind of high-power intermediate frequency segmented high-voltage rectifying transformer, including iron core, armature winding, secondary windings, rectifier bridge, Folder from top to bottom and oil tank of transformer, it is characterised in that: iron core uses opening or non-crystaline amorphous metal of remaining silent, and armature winding group uses 1-4 Section Copper Foil is wound on the primary skeleton of 1-4 group, and secondary windings uses 1-40 section copper cash or aluminum steel to be wound on 1-4 group secondary framework;Just Level skeleton, armature winding and secondary framework, secondary windings, by the way of series connection and parallel connection, are set on iron core rod; 1-4 section Copper Foil armature winding string in armature winding and after connecting with superpose frequency 10kHz~20kHz on 50~1000Hz again, 380 ~480V alternating voltage is connected;1-40 section coil in secondary windings supporting rectifier bridge corresponding with each coil respectively connects, whole Stream bridge is sequentially connected in series or is connected with lead-out terminal after parallel connection, and its direct current output rated voltage scope is up to 60~120kV, amount of exports Determine power not less than 80kW.Iron core, armature winding, secondary windings and rectifier bridge are all arranged in oil tank of transformer.
In the present invention, when described iron core uses opening non-crystaline amorphous metal, iron core opening is positioned at top, colligation on iron core rod It is fixed with iron core fixed plate;Be provided with the core support plate of secure fit in iron core fixed plate upper end, iron core fixed plate and iron core prop up Fagging is made by epoxy resin bonded fiber or plank;Between core support plate with iron core, it is provided with the iron core become by silicane rubber plate silks delay Punching, the opening part of iron core is overlapped on core support plate and iron core buffering;It is provided with lower cushion block in iron core lower end, supports at iron core The device body gripper shoe being made up of epoxy resin bonded fiber or plank it is provided with between plate and lower cushion block;Device body gripper shoe and iron core fixed plate Bottom be each attached in the groove of lower cushion block.
In the present invention, oil tank of transformer four sides is equipped with the corrugated plate of heat transmission, for increasing substantially heat dispersion, ripple Sheet height 500~1000mm, corrugated plate width 100~200mm, corrugated plate spacing 30~50mm.For reducing stray loss, transformation Nonmagnetic steel plate all selected by device folder from top to bottom and fuel tank top board.
In the present invention, rectifier bridge is connected with the 1-40 section coil in secondary windings, and rectifier bridge selects high pressure medium-high frequency diode 720 are had respectively with high pressure medium-high frequency resistance, high pressure mesohigh medium-high frequency electric capacity 20, high pressure medium-high frequency diode model RU4D SIYU 001, high pressure medium-high frequency resistance model is FU 01J M1/2WJ 6M Ω, high pressure medium-high frequency electric capacity model HL F103M 15kV.The high pressure front end subsignal that rectifier bridge exports after being connected with the 1-40 section coil in secondary windings is connected on high pressure dividing potential drop Then exporting on resistance, high pressure divider resistance model is RIG8B 100W 150M Ω.
Transformer secondary output winding is divided into 1-40 section coil winding to complete, each secondary windings total number of turns and the total circle of armature winding Number is 1:(150~180 than scope), magnetizing inductance scope is 0.2~1H, leakage inductance scope≤40 μ H.
The present invention includes voltage sampling and current sampling.Voltage sampling is drawn from divider resistance lower end, and current sampling is from whole Stream one section of bridge extraction, is connected formation voltage sampling terminal and current sampling terminal respectively with sample circuit.
Power of the present invention be more than 80kW, in input service frequency range 50~1000Hz the 10kHz of superposition frequency again~ 20kHz, 380~480V alternating voltages, output DC rated voltage scope is up to 60~120kV.Any expense can not increased In the case of, original place substitutes current power frequency 50Hz and high frequency 10kHz~20kHz high-voltage rectifying transformer, improves deduster Efficiency of dust collection.Volume of the present invention is little, lightweight, simple in construction, is the ideal equipment of large-scale electrostatic precipitation high voltage power supply.
Accompanying drawing explanation
Fig. 1 is the internal machine body structure schematic diagram of high-power medium-frequency high-voltage rectifier transformer of the present invention.
Fig. 2-1 is the structural representation of the opening amorphous alloy iron core that the present invention uses.
Fig. 2-2 is the schematic side view of the opening amorphous alloy iron core that the present invention uses.
Fig. 3-1 is the structural representation of remain silent amorphous alloy iron core or microcrystalline iron core that the present invention uses.
Fig. 3-2 is the schematic side view of remain silent amorphous alloy iron core or microcrystalline iron core that the present invention uses.
Fig. 4 is the ultra-thin silicon steel plate iron core structural representation that the present invention uses.
Fig. 5-1 is the secondary windings rectangular framework structural representation that the present invention uses.
Fig. 5-2 is the secondary windings rectangular framework structure schematic top plan view that the present invention uses.
Fig. 6-1 is the secondary windings circular framework structural representation that the present invention uses.
Fig. 6-2 is the secondary windings circular framework structure schematic top plan view that the present invention uses.
Fig. 7 is the iron core fixed plate schematic diagram that the present invention uses.
Fig. 8 is the core support plate schematic diagram that the present invention uses.
Fig. 9 is the device body gripper shoe schematic diagram that the present invention uses.
Figure 10 is the lower cushion block schematic diagram that the present invention uses.
Detailed description of the invention
A kind of high-power intermediate frequency segmented high-voltage rectifying transformer, including iron core 1, armature winding 6, secondary windings 7, rectification Bridge, folder from top to bottom and oil tank of transformer.The iron core used can select non-crystaline amorphous metal, ultracrystallite or ultra-thin silicon steel disc, work Frequency is 50~1000Hz, it is also possible to be operated in the frequency range of the 10kHz~20kHz of superposition frequency again on 50~1000Hz.Iron Core uses non-crystaline amorphous metal and during ultracrystallite, and core section amasss as rectangle, and sectional dimension is 170mm х 160mm or 170mm х 195mm, core structure is as depicted in figs. 1 and 2.When iron core uses ultra-thin silicon steel disc, core section amasss as multi-stage circular, sectional area Prioritizing selection scope is 200cm2~350cm2, core structure is as shown in Figure 3.
Armature winding group uses 1-4 section Copper Foil to be wound on the primary skeleton of 1-4 group, and copper thickness prioritizing selection scope is 0.6mm~0.8mm, Copper Foil breadth-first range of choice is 80mm~250mm, and the number of turn prioritizing selection scope of armature winding is 6 ~10, turn-to-turn or layer insulation use 0.2mm point gummed paper.When core section amasss as rectangle, primary skeleton sectional area is rectangle, As shown in Figure 4, when core section amasss as multi-stage circular, primary skeleton sectional area is circular, as shown in Figure 5.
Secondary windings uses 1-40 section copper cash or aluminum steel to be wound on 1-4 group secondary framework.Copper cash or aluminum steel are round wires, its Diameter prioritizing selection scope is Ф 0.8mm~Ф 1.0mm, and secondary windings number of plies prioritizing selection scope is 10~20, layer insulation Use 0.08mm point gummed paper.When core section amasss as rectangle, secondary framework sectional area is rectangle, when core section amasss as multistage Time circular, secondary framework sectional area is circular.Secondary windings skeleton structure schematic diagram is as shown in Figure 5.
Primary skeleton, armature winding and secondary framework, secondary windings, by the way of series connection and parallel connection, are set in iron On core stem;1-4 section Copper Foil armature winding string in armature winding and after connecting with superpose again on 50~1000Hz frequency 10kHz~ 20kHz, 380~480V alternating voltages are connected;The supporting rectification corresponding with each coil respectively of 1-40 section coil in secondary windings Bridging connects, and rectifier bridge is sequentially connected in series or is connected with lead-out terminal after parallel connection, its direct current output rated voltage scope up to 60~ 120kV, output rated power is not less than 80kW.Iron core, armature winding, secondary windings and rectifier bridge are all arranged on transformer oil In case.
Seeing Fig. 1, when iron core selects the structure of opening non-crystaline amorphous metal type, transformer core 1 opening is on top, at the beginning of 6 are Level winding, 7 is secondary windings, and 2 is iron core fixed plate, as it is shown in fig. 7, material selection epoxy resin bonded fiber or plank, iron core is solid Determining plate to be fixed together with iron core stem stem colligation, 3 is core support plate, as shown in Figure 8, and material selection epoxy resin bonded fiber or wood Plate, core support plate coordinates fixing with iron core fixed plate, and 5 is iron core buffering, material selection silicane rubber plate, the non-crystaline amorphous metal of opening It is overlapped on core support plate 3 and iron core buffering 5.4 is device body gripper shoe, as it is shown in figure 9, material selection epoxy resin bonded fiber Or plank, device body gripper shoe coordinates fixing with core support plate.8 is lower cushion block, and as shown in Figure 10, device body gripper shoe and iron core are solid Determine plate bottom to be each attached in the groove of lower cushion block.Said structure is used to turn over after can avoiding the assembling of opening non-crystaline amorphous metal shaped iron core device body Turn, reduce open circuit loss.

Claims (6)

1. a high-power intermediate frequency segmented high-voltage rectifying transformer, including iron core (1), armature winding (6), secondary windings (7), Rectifier bridge, folder from top to bottom and oil tank of transformer, it is characterised in that: iron core (1) uses opening non-crystaline amorphous metal, and armature winding (6) is adopted Being wound on the primary skeleton of 1-4 group with 1-4 section Copper Foil, secondary windings (7) uses 1-40 section copper cash or aluminum steel to be wound on the secondary bone of 1-4 group On frame;Primary skeleton, armature winding (6) and secondary framework, secondary windings (7), by the way of series connection and parallel connection, are set with On iron core rod;Frequency is superposed again with on 50~1000Hz after 1-4 section Copper Foil armature winding connection in series-parallel in armature winding (6) 10kHz~20kHz, 380~480V alternating voltages are connected;1-40 section coil in secondary windings (7) is corresponding with each coil respectively Supporting rectifier bridge connects, and rectifier bridge is sequentially connected in series or is connected with lead-out terminal after parallel connection;Iron core (1), armature winding (6), secondary Level winding (7) and rectifier bridge are all arranged in oil tank of transformer;Iron core (1) opening is positioned at top, colligation on iron core rod It is fixed with iron core fixed plate (2);The core support plate (3) of secure fit, iron core fixed plate it is provided with in iron core fixed plate (2) upper end (2) make by epoxy resin bonded fiber or plank with core support plate (3);Be provided with between core support plate (3) and iron core (1) by Iron core buffering (5) that silicane rubber plate silks becomes, the opening part of iron core (1) be overlapped on core support plate (3) and iron core buffer (5) it On;It is provided with lower cushion block (8) in iron core (1) lower end, is provided with by epoxy glass fabric between core support plate (3) and lower cushion block (8) Device body gripper shoe (4) that plate or plank are made;The bottom of device body gripper shoe (4) and iron core fixed plate (2) is each attached to lower cushion block (8) in groove.
High-power intermediate frequency segmented high-voltage rectifying transformer the most according to claim 1, it is characterised in that: oil tank of transformer Four sides is equipped with the corrugated plate of heat transmission, and folder from top to bottom and transformer oil roof box all select nonmagnetic steel plate.
High-power intermediate frequency segmented high-voltage rectifying transformer the most according to claim 1, it is characterised in that: described rectifier bridge Being connected with the 1-40 section coil in secondary windings (7), rectifier bridge selects high pressure medium-high frequency diode and high pressure medium-high frequency resistance to divide There are not 720, high pressure medium-high frequency electric capacity 20, high pressure medium-high frequency diode model RU4D SIYU 001, high pressure medium-high frequency resistance Model is FU 01J M1/2WJ 6M Ω, high pressure medium-high frequency electric capacity model HL F103M 15kV.
High-power intermediate frequency segmented high-voltage rectifying transformer the most according to claim 3, it is characterised in that: rectifier bridge is with secondary The high pressure front end subsignal that 1-40 section coil in level winding exports after connecting is connected on high pressure divider resistance and then exports, High pressure divider resistance model is RIG8B 100W 150M Ω.
High-power intermediate frequency segmented high-voltage rectifying transformer the most according to claim 1, it is characterised in that: transformer secondary output Winding (7) is divided into 1-40 section coil winding to complete, and each secondary windings total number of turns and armature winding total number of turns are 1 than scope: (150~180), magnetizing inductance scope is 0.2~1H, leakage inductance scope≤40 μ H.
High-power intermediate frequency segmented high-voltage rectifying transformer the most according to claim 1, it is characterised in that: iron core (1) is adopted With microcrystalline iron core or ultra-thin silicon steel disc.
CN201410241436.XA 2014-05-30 2014-05-30 High-power intermediate frequency segmented high-voltage rectifying transformer Active CN103986343B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104183360B (en) * 2014-09-12 2016-09-07 江苏容天机电科技有限公司 A kind of high-power medium-high frequency segmented high voltage pulse transformer
CN104637655A (en) * 2015-02-06 2015-05-20 南京工程学院 Efficient amorphous alloy medium frequency transformer for direct-current networking
CN109686538B (en) 2018-12-11 2020-07-28 华为技术有限公司 Transformer and power supply
CN110085399A (en) * 2019-05-29 2019-08-02 江苏容天机电科技有限公司 A kind of high-frequency and high-voltage plasma transformer
CN112820511B (en) * 2020-12-31 2022-03-22 苏州博思得电气有限公司 Filament transformer and X-ray high-voltage generator

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CN103366928A (en) * 2013-08-08 2013-10-23 韩宝华 Double-opening magnetic electric equipment iron core component body
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Publication number Priority date Publication date Assignee Title
CN1372278A (en) * 2001-02-28 2002-10-02 台达电子工业股份有限公司 High-frequency power transformer with primary and secondary winding all cross structure and its making method
CN202049854U (en) * 2011-04-28 2011-11-23 南京国电环保设备有限公司 High-power high-frequency high-tension rectifier 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
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