CN2425453Y

CN2425453Y - Inversing high-voltage constant-current DC power source

Info

Publication number: CN2425453Y
Application number: CN 00208686
Authority: CN
Inventors: 雷统淼
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-03-28
Anticipated expiration: 2010-05-11

Abstract

The utility model relates to an inversing high-voltage constant-current direct-current power source. Latest high-power electronic power devices from the American Motorola company and the American IR company are used. A voltage doubling capacitor, a diode, a buffer resistor, and a display circuit are all encapsulated in an oil pipe which is filled with insulating oil 8 so that a high-voltage sleeve pipe is formed. A frequency conversion high-voltage transformer, a filter, and a control circuit are all installed in a shell body of a control cabinet. As a result, the utility model has the advantages of compact structure, small volume, and light weight, being widely used in occasions which use a high-voltage direct current power supply, wherein, the occasions comprise dust removal, acid mist removal, desulphurization, air purification, etc.

Description

Contravariant high voltage and constant current DC power supply

The utility model relates to a kind of contravariant high voltage and constant current continuous-current plant of high direct voltage output.

At present, what high-voltage DC power supply extensively adopted is the SCR control technology, partly form by rectification, transformation and control, the weak point of its existence is, since adopt the SCR control technology, the power frequency high voltage rectification, thereby its volume is big, Heavy Weight, conventional power source weight comprises that control cubicle weight can reach more than the 500kg more than 400kg.

Its purpose of the utility model just is to provide a kind of contravariant high-voltage constant-current power supply, has compact conformation, and volume is little, and is in light weight, and can realize unattended automatic operation.

The technical scheme that realizes above-mentioned purpose and take is, by filtering, rectification, high-frequency inversion, transformation, rectification output and control are partly formed, device comprises control cubicle, fan, and control cubicle top connects bushing, high-voltage rectifying multiplication of voltage capacitor and diode, buffer resistance and display circuit partly is installed in the bushing, the oil pipe of bushing is φ 40～60mm, fills insulating oil in the pipe, fixedly connected low pressure input of two ends and high pressure output.Frequency conversion, high-tension transformer, filter and controller all are installed in the housing of control cubicle.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is this apparatus structure schematic diagram;

Fig. 2 is Fig. 1 three end views;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the bushing structural representation.

This device utilization high-frequency inversion principle, select novel power electronic device (IGBT and MOSFEET) for use, utilize its speed-sensitive switch characteristic, make power supply have quick response, and with a spot of Electric Field Distribution electric capacity, power supply output is steady, and electric field is in the corona state constantly, utilize the resonant pulses electric current of the negative resistance region of discharge realization self-adapting type of electric field, the dust charge electrical efficiency is improved greatly to realize high-effective dust-removing.

This device is by filtering, rectification, high-frequency inversion, transformation, rectification output and control are partly formed, device comprises control cubicle 2, fan 3, control cubicle 2 tops connect bushing 1, and high-voltage rectifying multiplication of voltage capacitor and diode 10, buffer resistance 7 and display circuit 5,6 partly is installed in the bushing 1, the oil pipe 9 of bushing 1 is φ 40～60mm, fill fixedly connected low pressure input 11 of insulating oil 8, two ends and high pressure output 4 in the pipe, frequency conversion.High-tension transformer, filter and controller all are installed in the housing 12 of control cubicle 2.

Be characterized in: adopt U.S. MOTOROLA and IR company up-to-date device for high-power power electronic, multiplication of voltage electric capacity and diode 10, buffer resistance 7, display circuit 5,6 all are encapsulated in the oil pipe 9 of dress insulating oil 8 in φ 40～60mm, form bushing 1, can adopt parallel way as increasing capacity, two-tube two times of being output as single tube output.And its upper and lower two ends are respectively high pressure output 4 and low pressure input 11.The frequency conversion high-tension transformer, filter and control circuit then all are installed in the housing of control cubicle.

Compared with prior art this device has the following advantages:

1, because multiplication of voltage capacitor and diode, buffer resistance, display circuit are installed in a sleeve pipe In, thereby having compact conformation, volume is little, and is in light weight, and very easily characteristics are installed, and control, Demonstration, high pressure generator integrate. Conventional power source weight more than 400kg, the 140kV/30mA electricity The source comprises that switch board weight can reach 500kg, and this power supply weight 5kg only, and economize on electricity is significantly;

2, owing to adopted the up-to-date high-power electric and electronic device of U.S. MOTOROLA and IR company Part utilizes its speed-sensitive switch characteristic, and the tracking effect is fast, thereby has the reliability height, and is stable, Can realize unattended automatic operation.

Claims

Contravariant high voltage and constant current DC power supply, by filtering, rectification, high-frequency inversion, transformation, rectification output and control are partly formed, device comprises control cubicle (2), fan (3), it is characterized in that, control cubicle (2) top connects bushing (1), high-voltage rectifying multiplication of voltage capacitor and diode (10) partly is installed in the bushing (1), buffer resistance (7) and display circuit (5), (6), the oil pipe (9) of bushing (1) is φ 40～60mm, fills insulating oil (8) in the pipe, the fixedly connected low pressure inputs of two ends (11) and high pressure output (4) frequency conversion, high-tension transformer, filter and control circuit all are installed in the housing (12) of control cubicle (2).