CN2465392Y - High-voltage electrostatic constant current power source - Google Patents

Abstract

The utility model relates to a high voltage static electricity decoking and dedusting high voltage electrostatic constant current power supply. The utility model is characterized in that an alternating current coil is arranged on a left iron core of a star-shaped iron core, a voltage boosting coil is arranged on a right iron core post, and two ends of the voltage boosting coil are connected with the alternate current end of a bridge rectifier. Two controlling coils are arranged on an iron core middle post, two ends of the controlling coil are connected with direct current adjusting power supplies, and one end of the other controlling coil is connected with a positive electrode of the bridge rectifier. One end is grounded. The utility model has the advantages of stepless voltage regulation, constant high voltage current output and automatic voltage follow, can ensure high efficiency decoking and dedusting, stability and reliable running, and simultaneously has the functions of automatic protection of the voltage boosting coil and a rectifier.

Description

The high-pressure electrostatic constant-current supply

The utility model relates to the power-supply device that a kind of high-pressure electrostatic removes tar, dedusting, its particularly suitable chemical fertilizer, steel-making, gas industry remove tar, the dedusting of cement, ceramic industry or dust reclaim, and are a kind of environmental protection and energy saving power-supply devices.

High-pressure electrostatic removes tar or cleaner utilizes the electrostatic adsorption of high direct voltage electrode focusing oil or dust to realize, it comprises high-voltage electrostatic power and tower body two large divisions, high-voltage electrostatic power is automatically changeb to high-voltage dc voltage to alternating voltage, the tower body bottom is provided with air inlet and reclaims mouth, air outlet, tower body inside is distributed with electrode plate with high voltage, battery lead plate connects power cathode, tower body ground connection connects the positive pole of power supply simultaneously, when the air that contains tar or dust passes through tower body, pole plate is with regard to tar adsorption or dust, tar, dust is deposited on the pole plate and comes off automatically, thereby purifies air, and the dust that comes off can be recycled.Therefore the performance of high-voltage DC power supply just directly has influence on the effect of decoking, dedusting.At present; high-voltage electrostatic power is to power to step-up transformer by variable-voltage transformer or by thyristor controlled electronic type voltage regulator; because after the voltage adjustment of variable-voltage transformer is fixed value; can not realize voltage follow; cause transformer or diode breakdown easily; machine halt trouble; decoking; ash removal efficiency is low; and the electronic type voltage regulator is selected for use owing to silicon controlled; make that to be input to the transformer voltage waveform imperfect, be easy to generate impulse disturbances, even make high-pressure polar plate produce the free discharge of pulse; flashover breakdown; cause the transformer cisco unity malfunction; therefore, such power supply reliability is poor, and efficient is low.

The purpose of this utility model provides a kind ofly has stepless voltage regulation and high-tension current is constant, and the automatic follower characteristics of voltage is guaranteeing decoking, ash removal efficiency.Simultaneously, power supply itself has the high-voltage electrostatic power of automatic protection functions.

The technical scheme that realizes the utility model purpose is: adopt step-up transformer that voltage is raise, carry out exporting high voltage direct current behind the bridge rectifier through high voltage silicon stack again, step-up transformer is stepless pressure regulation within the specific limits; Concrete measure be the iron core of step-up transformer be "

" shape, " " AC coil is housed on the left stem stem of shape iron core, on the right stem stem step-up coil is housed.Two termination alternating currents of AC coil, the interchange end of two termination bridge rectifiers of step-up coil; Two control coils are housed in the iron core middle column, a control coil two terminations one adjustable dc auxiliary supply wherein, a termination bridge rectifier positive pole of another control coil, an end ground connection, adjust the size of external dc accessory power supply, both can adjust the size of the utility model output dc voltage.

The cross section of said iron core middle column is greater than the cross section of the right stem stem that step-up coil is housed in the technique scheme.

Said two control coils are contained in the square hole of opening in the iron core middle column in the technique scheme, and its coil winding-direction is identical, and the direction that feeds power supply is opposite.

Said two control coils are perpendicular with the AC coil and the step-up coil on the right stem stem that are contained on the stem stem of an iron core left side in the technique scheme.

The utility model has guaranteed that at first this power supply does not have the free discharge of high-voltage pulse, the good stability of power supply owing to adopted the magnetic voltage-regulation principle; Because the magnetic range of regulation is wide, stepless voltage regulation precision height can adapt to various housing structures and air plankton; In addition, on step-up transformer, adopted constant current control, voltage follow, removed tar, ash removal efficiency, simultaneously transformer and rectifying tube have been had automatic protective effect, improved the reliability of power supply thereby improved effectively.

Accompanying drawing is a fundamental diagram of the present utility model.

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

The utility model is made up of adjustable dc auxiliary supply 9 and magnetic rectifier transformer 10 two parts that boost, adjust the boost size of rectifier transformer 10 output high-voltage dc voltages of magnetic by adjustable dc auxiliary supply 9, boost high voltage direct current output termination tower body 8 pole plates of rectifier transformer 10 of magnetic: adjustable dc auxiliary supply 9 comprises a small-sized single-phase voltage regulating device TD, capacitor C1, C2, iron inductance L and bridge-type single-phase rectifier VD1, capacitor C1, C2 and iron inductance L constitute filter, adjust the output of voltage regulator TD, can change the size of its output DC source voltage; The magnetic rectifier transformer 10 that boosts is assemblied in the fuel tank, is full of transformer oil in the fuel tank, and reliable to guarantee built-in electrical insulation, the iron core of step-up transformer is

Shape, iron core is made up of three stem stems in left, center, right 2,4,6 and upper and lower iron yoke, the cross section of middle stem stem 4 is greater than the cross section sum of left stem stem 2 and right stem stem 6, on left stem stem 2, AC excitation coil 1 is housed, 220 volts or 380 volts alternating currents of two terminations of AC excitation coil 1, step-up coil 7 is housed, the interchange end of two termination high pressure bridge rectifier VD2 of step-up coil 7 on the right stem stem 6; Have square hole in the iron core middle column 4, two control coils 3,5 wherein are housed, control coil 3 is a voltage regulation coil, the output of the adjustable dc auxiliary supply 9 of its two termination, control coil 5 is the constant current coil, the positive pole of one termination bridge rectifier VD2, an end ground connection, bridge rectifier VD2 presses the single-phase bridge rectifier system by four high voltage silicon stacks and connects; Control coil 3,5 around to identical, the current opposite in direction that feeds, the magnetic direction that voltage regulation coil 3 and constant current coil 5 are produced is opposite, can make 3 demagnetizing effects of 5 pairs of voltage regulation coils of constant current coil, thereby avoid on the pole plate of tower body 8, adsorbate being arranged, when making high-tension current big, this electric current that on constant current coil 5, flows through, stem stem 4 magnetic resistance reduce in can making, right stem stem 6 is close to the road effect to be increased, step-up coil 7 output AC voltages are reduced, and tower body 8 polar plate voltages descend, and have realized that the utility model output voltage follows automatically, the Electrostatic Absorption electric current remains unchanged, be the constant current suction-operated, protected step-up coil 7 and rectifier VD2 to be subjected to the impact of electric current greatly effectively, increased the reliability of equipment; The step-up coil of adorning on the AC coil 1 of dress and the right stem stem 6 on control coil 3,5 and the iron core left side stem stem 27 is perpendicular, thereby the D.C. magnetic field that can avoid control coil 3,5 to produce is coupled on the coil 1,7, make the alternating voltage waveform of step-up coil 7 outputs complete, no pulse produces, with the free discharge of the pulse that reduces tower body 8 pole plates, improved the job stability of power supply; The high-pressure side of high pressure bridge rectifier VD2, promptly negative pole is connected with the pole plate of tower body 8, tower body 8 earthings of casing, and be communicated with bridge rectifier VD2 is anodal.

Operation principle: when the high-pressure electrostatic constant-current supply starts, AC coil 1 on voltage regulator TD and the iron core column 2 is connected 220 volts or 380 volts of alternating currents, adjust voltage regulator TD, just can regulate the output voltage values of dc auxiliary supply 9, when dc auxiliary supply 9 output voltages are low, because iron core middle column 4 cross sections are much larger than iron core column 6 cross sections, iron core column 6 is close to the road by iron core middle column 4, step-up coil 7 alternating voltages are very low, increase the output voltage of dc auxiliary supply 9, it is big that the magnetic resistance of iron core column 4 becomes, the road effect of being close to iron core column 6 reduces, alternating voltage on the step-up coil 7 increases, bridge rectifier VD2 output dc voltage is adjusted dc auxiliary supply 9 output voltages continuously, can adjust the output dc voltage of magnetic boost rectifier 10 continuously, magnetic rectifier transformer 10 outputs that boost can be changed in 0-60 Kilovolt Direct Current pressure scope, thereby realized the magnetic stepless voltage regulation.

Claims (4)

1, a kind of tar, dedusting high-pressure electrostatic constant-current supply of removing is characterized in that being

On the left stem stem (2) of shape iron core AC coil (1) is housed, step-up coil (7) is housed on the right stem stem (6), step-up coil (7) two termination bridge rectifier VD2 exchange end; Control coil (3), (5) are housed, the control coil adjustable dc auxiliary supplies of (3) two terminations (9), control coil (5) one termination bridge rectifier VD2 positive poles, other end ground connection in the iron core middle column (4).

2, high-pressure electrostatic constant-current supply as claimed in claim 1 is characterized in that the cross section of the cross section of said iron core middle column (4) greater than the right stem stem (6) that step-up coil (7) is housed.

3, high-pressure electrostatic constant-current supply as claimed in claim 1 is characterized in that said control coil (3) and (5) are contained in the square hole of opening in the iron core middle column (4), and its coil winding-direction is identical, and the feeding sense of current is opposite.

4, high-pressure electrostatic constant-current supply as claimed in claim 1, it is characterized in that said control coil (3), (5) and be contained in the AC coil (1) on the iron core left side stem stem (2) and the step-up coil (7) that is contained on the right stem stem (6) perpendicular.