High-power intermediate-frequency sectional type high-voltage rectifier transformer
A high-voltage rectification, segmented technology, applied in the direction of transformer/inductor core, transformer/inductor cooling, transformer/inductor coil/winding/connection, etc., can solve the problem of high reactive power, high loss, active power Low problems, to achieve the effect of improving dust removal efficiency, simple structure and light weight
Active Publication Date: 2014-08-13
江苏容天机电科技有限公司
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Problems solved by technology
The high-voltage rectifier transformer with a power frequency of 50Hz has large volume, high loss and low efficiency, resulting in low dust removal efficiency of the dust collector
However, the high-voltage rectifier transformer with a high frequency of 10kHz to 20kHz has high reactive power and slightly low active power, which also results in low dust removal efficiency of the dust collector.
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[0027] A high-power medium-frequency segmented high-voltage rectifier transformer includes an iron core 1, a primary winding 6, a secondary winding 7, a rectifier bridge, upper and lower clips, and a transformer oil tank. The iron core used can be selected from amorphous alloy, ultrafine crystal or ultra-thin silicon steel sheet, and the working frequency is 50-1000Hz, and it can also work on the frequency range of 10kHz-20kHz superimposed on 50-1000Hz. When the iron core is made of amorphous alloy and ultrafine crystal, the cross-sectional area of the iron core is rectangular, and the cross-sectional size is 170mmх160mm or 170mmх195mm. The structure of the iron core is as follows: figure 1 and shown in Figure 2. When the iron core adopts ultra-thin silicon steel sheet, the cross-sectional area of the iron core is multi-stage circular, and the preferred range of cross-sectional area is 200cm 2 ~350cm 2 , core structure shown in Figure 3.
[0028] The primary winding gro...
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Abstract
The invention discloses a high-power intermediate-frequency sectional type high-voltage rectifier transformer. The transformer comprises an iron core, a primary winding, a secondary winding, rectifier bridges and a transformer oil tank. The primary winding covers an iron core stand column, the secondary winding covers the primary winding and the iron core, the primary winding winds a primary framework through one to four sections of copper foil, the secondary winding winds a secondary framework through one to forty sections of copper wires or aluminum wires, and one to forty sections of coils in the secondary winding are connected with the rectifier bridges correspondingly matched with the coils respectively. The work frequency can range from 50 Hz to 1000 Hz, the signal with the frequency ranging from 50 Hz to 1000 Hz can be overlapped with a signal with the frequency ranging from10 kHz to 20 kHz, the direct current output rated voltage can range from 60 kV to 120 kV, the output rated power is not smaller than 80 kW, and the temperature rise of the full load continuous operation is smaller than or equal to 80 k. The high-power intermediate-frequency sectional type high-voltage rectifier transformer is small in size, light in weight and simple in structure and is an ideal device for a large static dust removing high-voltage power source.
Description
Technical field [0001] The invention is a special transformer manufacturing field. Specifically, it is a high -power medium -frequency segment high -voltage rectifier transformer. Background technique [0002] In recent years, with the rapid development of my country's power industry, the scale of power grids has become larger and larger, and the problem of environmental pollution with coal as fuel has become more and more prominent. After coal -fired, a large amount of dust is generated. The common equipment for controlling dust is a dust collector. It is formulating higher atmospheric smoke and dust emission standards, and higher requirements for the key component of the dust collector -transformer.The current electrostatic dust removal high -voltage rectifier transformers are mostly working frequency 50Hz or high -frequency 10kHz ~ 20kHz.The high -voltage rectifier transformer of 50Hz is large, with large volume, high loss, and low efficiency, resulting in low dust removal eff...
Claims
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IPC IPC(8): H02M7/00H01F27/30H01F27/26H01F27/14
Inventor 赵文波陈峰
Owner 江苏容天机电科技有限公司