CN201002057Y

CN201002057Y - Oil-fuel dust-removing purifying high-frequency pulse power source device

Info

Publication number: CN201002057Y
Application number: CNU2007201054108U
Authority: CN
Inventors: 蒋费锋; 陈安刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-09
Filing date: 2007-01-09
Publication date: 2008-01-09
Anticipated expiration: 2017-01-09

Abstract

The utility model discloses an oil fume dust separation high frequency impulse power source device and comprises a power source circuit, a high frequency oscillation circuit, a drive circuit, a high pressure pulse generating circuit and a soft start circuit; the soft start circuit consists of a voltage comparator and an integrating circuit comprising a RC element; the power source circuit is divided into two parts of a high voltage circuit and a low voltage circuit; the high frequency oscillation circuit is composed of a multivibrator comprising an NE555 timebase integrate circuit and a voltage regulator circuit; the drive circuit comprises a voltage comparator and a complementary output circuit composing of triodes; the high pressure pulse generating circuit consists of a power tube, a pulse transformer, a silicon stack and a capacitance; the soft start circuit is connected with the drive circuit; the high frequency oscillation circuit is connected with the drive circuit; the drive circuit is connected with the high pressure pulse generating circuit. The utility model can meet the requirement of the oil fume dust separation device on the power source, and has the advantages that the circuit is simple, the structure is reasonable, the voltage is high, the alternating component is high, the power expenditure is low, the cost is low, the performance is stable and the operation is reliable.

Description

Oil smoke udst separation high-frequency electrical pulses source apparatus

Technical field

The utility model relates to supply unit, specifically a kind of pulse high-voltage direct current supply unit that is used for the oil smoke dedusting and purifying device.

Background technology

Be used for oil smoke udst separation supply unit now and mainly contain two kinds of forms: dc source and AC power.As the patent No. is 03234060, denomination of invention is put down in writing for the Chinese patent of " electrostatic oil and smoke cleaner high voltage source ", it comprises rectification circuit, high-frequency oscillating circuits, on-off circuit and high frequency transformer, it is characterized in that also being provided with holding circuit and time-delay reset circuit; One port of rectification circuit is connected with on-off circuit, and a port is connected with time-delay reset circuit, port and high-frequency oscillating circuits, and a port is connected with holding circuit; One port of high-frequency oscillating circuits is connected with on-off circuit; A port of on-off circuit connects high frequency transformer, and high-frequency oscillating circuits produces pulse signal makes high-tension transformer produce high pressure for loaded work piece through on-off circuit shaping amplification; A port of high frequency transformer is connected with holding circuit, and the high pressure that high frequency transformer is produced is protected control through holding circuit; A port of holding circuit is connected with time-delay reset circuit, and time-delay reset circuit is connected with high-frequency oscillating circuits, by time-delay reset circuit high-frequency oscillating circuits is resetted.Current, more and more higher to the requirement of the degree of purification of dedusting and purifying device, and for the power supply in the purifier, its Alternating Component is big more, frequency is high more, then treatment effect is good more.Require oil smoke udst separation power supply new type purification device supply frequency 〉=10KHz at present, peak current rating 〉=30mA, and require Alternating Component 〉=35%, above-mentioned direct current and AC power are difficult to reach the above-mentioned requirements of purifier.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of requirement at the oil smoke dedusting and purifying device is provided, and utilizes the DC__AC switch technology to realize a kind of frequency height, the high frequency pulse power supply that Alternating Component is high; Pulse voltage can be adjustable continuously in 40～100KHz scope in 6～18KV, pulse frequency.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

A kind of oil smoke udst separation high-frequency electrical pulses source apparatus, comprise power circuit, high-frequency oscillating circuits, drive circuit, high-voltage pulse generating circuit, it is characterized in that: also have soft starting circuit, described soft starting circuit comprises the integrating circuit that voltage comparator and RC element are formed, described power circuit is divided into high-tension circuit and low-voltage circuit two parts, high-tension circuit comprises bridge rectifier and filter capacitor, low-voltage circuit comprises power transformer, rectification circuit and mu balanced circuit, multivibrator and voltage regulator circuit that described high-frequency oscillating circuits is made up of the NE555 time-base integrated circuit, described drive circuit comprises the complementary output circuit that voltage comparator and triode are formed, described high-voltage pulse generating circuit comprises power tube, pulse transformer, silicon stack and electric capacity, described power circuit connects high-frequency oscillating circuits, drive circuit and high-voltage pulse generating circuit, described soft starting circuit connects drive circuit, described high-frequency oscillating circuits connects drive circuit, and described drive circuit connects high-voltage pulse generating circuit.

Because the utility model adopted above-mentioned technical measures, make it to contrast prior art and can solve the demand of oil smoke dedusting and purifying device power supply, it is simple, rational in infrastructure to have a circuit, voltage height, Alternating Component height, power consumption are little, cost is low, stable performance, characteristics such as reliable.

Description of drawings

Fig. 1 is the electrical principle block diagram of the utility model embodiment;

Fig. 2 is the circuit theory diagrams of the utility model embodiment.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

See figures.1.and.2, the utility model is the requirement at the oil smoke dedusting and purifying device, utilizes the DC__AC switch technology to realize a kind of frequency height, the high frequency pulse power supply that Alternating Component is high.Pulse voltage can be adjustable continuously in 40～100KHz scope in 6～18KV, pulse frequency.The utility model circuit is made up of power circuit 1a, high-frequency oscillating circuits 2a, soft starting circuit 5a, drive circuit 3a, high-voltage pulse generating circuit 6a five parts.Power circuit 1a divides high-tension circuit, low-voltage circuit two parts, and high-tension circuit provides working power for high-pressure generating circuit by the AC200V power supply after bridge rectifier D2, capacitor C 5 filtering; Low-voltage circuit by the B1 step-down of 1VA power transformer after rectification circuit D1 and mu balanced circuit IC1 (LM7815) voltage stabilizing provide stable 15V DC voltage for operating circuit.High-frequency oscillating circuits 2a forms multivibrator by IC2 (NE555) time base circuit, the potentiometer W2 of voltage regulator circuit 4a can regulate frequency of oscillation, frequency of oscillation is about 40～100KHz, potentiometer W1 is used for regulating the dutycycle of oscillator output signal, with the control output voltage, for high voltage conversion circuit provides the driving signal.The integrating circuit that voltage comparator ic 3B (LM393) and RC element are formed has constituted soft starting circuit 5a, the start-up course of control circuit, in the time of can effectively preventing to start shooting to the impact of circuit.Drive circuit is formed the complementary output circuit by voltage comparator ic 3A (LM393) and triode T2, T3, has improved the driving force of circuit.High-voltage pulse generating circuit 6a is made up of power tube T1, pulse transformer T4, and the ac high-voltage signal of pulse transformer T4 output is exported the high-voltage dc pulse of 6～18KV through high voltage silicon rectifier stack DQ1 rectification behind the capacitor C 9 elimination clutters.Power circuit 1a connects high-frequency oscillating circuits 2a, drive circuit 3a and high-voltage pulse generating circuit 6a, voltage regulator circuit 4a connects high-frequency oscillating circuits 2a, soft starting circuit 5a connects drive circuit 3a, high-frequency oscillating circuits 2a connects drive circuit 3a, drive circuit 3a connects high-voltage pulse generating circuit 6a, and high-voltage pulse generating circuit 6a connects load 7a.The V of voltage comparator ic 3B of incipient stage soft starting circuit 5a powers on ₊＜V _-, comparator IC3B output low level is with the in-phase end (V of the voltage comparator ic 3A among the drive circuit 3a ₊) current potential is pulled to low level, makes voltage comparator ic 3A output low level, the triode T3 conducting among the drive circuit 3a, drive circuit 3a output low level, output VMOS power tube T1 ends, and high-tension circuit is not worked; Along with the growth of time, the in-phase end current potential of voltage comparator ic 3B is more and more higher, works as V ₊＞V _-The time, the voltage comparator ic 3B output high level of soft starting circuit 5a makes drive circuit enter normal operating conditions.The complementary output circuit that drive circuit 3a is made up of voltage comparator ic 3A and T2, T3 triode has improved the driving force of circuit.

Claims

1, a kind of oil smoke udst separation high-frequency electrical pulses source apparatus, comprise power circuit (1a), high-frequency oscillating circuits (2a), drive circuit (3a), high-voltage pulse generating circuit (6a), it is characterized in that: also have soft starting circuit (5a), described soft starting circuit (5a) comprises the integrating circuit that voltage comparator (IC3B) and RC element are formed, described power circuit (1a) is divided into high-tension circuit and low-voltage circuit two parts, high-tension circuit comprises bridge rectifier (D2) and filter capacitor (C5), low-voltage circuit comprises power transformer (B1), rectification circuit (D1) and mu balanced circuit (IC1), described high-frequency oscillating circuits (2a) comprises multivibrator and the voltage regulator circuit of being made up of NE555 time-base integrated circuit (IC2) (4a), described drive circuit (3a) comprises voltage comparator (IC3A) and triode (T2, T3) the complementary output circuit of Zu Chenging, described high-voltage pulse generating circuit (6a) comprises power tube (T1), pulse transformer (T4), silicon stack (DQ1) and electric capacity (C9), described power circuit (1a) connects high-frequency oscillating circuits (2a), drive circuit (3a) and high-voltage pulse generating circuit (6a), described soft starting circuit (5a) connects drive circuit (3a), described high-frequency oscillating circuits (2a) connects drive circuit (3a), and described drive circuit (3a) connects high-voltage pulse generating circuit (6a).