CN2425716Y

CN2425716Y - Large power ultrasonic wave generator

Info

Publication number: CN2425716Y
Application number: CN 00223266
Authority: CN
Inventors: 史永祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-13
Filing date: 2000-06-13
Publication date: 2001-04-04
Anticipated expiration: 2010-06-13

Abstract

The utility model relates to a large-power ultrasonic generator, which uses a novel ultrasonic power supply and a high-performance piezoelectric emission type transducer, and utilizes a single-chip microcomputer to carry out time control for causing the whole machine to continuously operate. The utility model is characterized in that the combined connection of each of work units of the utility model is that a switch control unit is connected with a UPC, an ultrasonic signal source, a low-voltage power supply, and a power conversion unit; the ultrasonic signal source is also connected with the low-voltage power supply; the power conversion unit is also connected with a high-voltage power supply and an output circuit; a display circuit is connected with a CPU.

Description

High-power ultrasound generator

The utility model relates to a kind of ultrasonic unit, particularly a kind of intelligent electric pulsating water processing power generator.

In industrial production, the pipeline scale ubiquity, influence is produced when serious, wastes energy, and causes pipeline to scrap.And present chemical control dirt, cost height not only, labour intensity is big, pollutes also very serious.

Ultrasonic wave antiscale, scale removal, mainly be to utilize strong sound field that several physical actions are taken place medium and the effect that produces, become dirty material under action of ultrasonic waves, a series of variations take place in its physics and thing univoltine matter, thereby causing into dirty thing comes off, be dispersed into the smalls shape, form loose and be difficult for pulling the deposit of knot.Action of ultrasonic waves mainly shows as:

1, destroyed the condition of pulling knot on dirty thing generation and the wall, made into dirty thing and in solution, form the dirty crystallization that disperses, and no longer on wall, form hard scale.

2, ultrasonic wave is to the cavitation of liquid, make to produce a large amount of holes and bubble in the liquid, when breaking, produce powerful pressure spike in certain limit, it can not only make into the little dirt grain of the quick formation of dirty material and be suspended in the liquid, and can also cause established hard scale fragmentation.

3, because ultrasonic wave is different with spread speed in the wall at dirt layer, produce speed difference,, cause the dirt and the adhesion at interface to reduce, cause dirty pull-up to fall, reach the purpose of the old dirt of removing so on its interface, form shear stress.

The effect that existing ultrasonic unit is removed old dirt is not too obvious, and reason is that power is big inadequately, and is powerless because sound field intensity does not reach the degree of breaking to some more firm dirt.If strengthen hyperacoustic vibrations power (more than 1000 watts), long ultrasonic power generator of time one will produce high temperature and be burnt out.

The purpose of this utility model is to disclose a kind of timing function conversion to the public, the maximum service efficiency of performance machine, scale removal is obvious, operating cost is low, can be widely used in scale removal in all types of industries pipeline, antiscale, be specially adapted to antiscale, the scale removal of various pipelines in petroleum collection system measuring station, terminal and the multi-purpose station, and the required intelligent electric pulsating water processing power generators such as scale removal of the northern area of China central heating pipeline.

The technical scheme that the utility model adopted is:

Novel ultrasonic power power supply of a kind of utilization and high-performance piezoelectricity emission-type transducer, utilize single-chip microcomputer to carry out time control, complete machine is moved continuously, safe and reliable, the intelligent electric pulsating water processing power generator that automaticity is high, being connected of each working cell that it is characterized in that this machine is (see figure 1): switch control unit is connected with UPC, source of ultrasound signal, low-tension supply, power conversion unit, source of ultrasound signal is connected with low-tension supply again, power conversion unit is connected with high voltage source, output circuit again, and display circuit is connected with CPU.

The ultrasonic pulse frequency is adopted in this instrument signal source, by power transfer, does time control with single-chip microcomputer.Export 1000 watts to 2000 watts ultrasonic power generator.Its power transfer is actually two power model IGBT1 and IGBT2 wheel and changes jobs, and is burnt because of a module long-term work generation high temperature avoiding.As shown in Figure 2, module I GBT1 and IGBT2 one end are with anodal in parallel, and an end is in parallel with negative pole, and the other end is 8 inputs (G1-E2), is connected with the drive block output of ON-OFF control circuit respectively; Two E1 pass through the first utmost point of module, transformer B1 and B2. and the R of polyphone, C are connected with the O utmost point; The inferior utmost point of B1 and B2 is connected with the two ends of piezoelectric type oscillator Y by coil L1, L2 and is formed the loop.

Source of ultrasound signal, switch control unit are connected with UPC, power conversion unit, are to adopt photoelectricity to be of coupled connections, to be of coupled connections because of photoelectricity and not disturb, and be difficult for producing misoperation, and operating efficiency are very high.

Remaining working cell circuit and connection thereof are classical available circuit and connection thereof.

Accompanying drawing advantage of the present utility model is:

Be used for the scale removal of all types of industries pipeline, antiscale but factory is general, be specially adapted to the scale removal etc. of antiscale, scale removal and the northern area of China central heating pipeline of various pipelines in petroleum collection system measuring station, terminal and the multi-purpose station.

Description of drawings:

Fig. 1 is the utility model working cell connection layout;

Fig. 2 is that the utility model power transfer is implemented illustration;

Fig. 3 is that the utility model signal source is implemented illustration;

Fig. 4 is that the utility model high voltage source is implemented illustration (being connected with Fig. 2);

Fig. 5 is the utility model low-tension supply embodiment schematic diagram (being connected with Fig. 3);

Fig. 6 is the utility model power transfer drive signal waveform figure.

Fig. 7 is that the utility model figure display circuit is implemented illustration.

Because of after Fig. 5 dwindles, font diminishes, so only indicated primary voltage and six groups of output voltages.

Characteristic of the present utility model and operation principle are:

1, source of ultrasound signal is made the dipulse oscillator with a slice TC494.Adopt Japanese import midget relay,, carry out frequency inverted by microcomputer circuit.Frequency drift is little, and stability is high.

2, the interface of the commutator pulse of single-chip microcomputer and signal plate adopts photoelectricity to close the per commutator pulse that sent a MS level in 30 minutes of device CPU, by bistable trigger, drives midget relay.Make the relay adhesive realize the circuit conversion (see figure 3).The sort circuit single-chip microcomputer is carried on the back or on the head little, is difficult for heating.Photoelectricity is isolated, and is anti-interference strong, the reliability height.

3, the modulation signal of this circuit is exported by single-chip microcomputer.Input to the 74LS132 schmitt trigger by photoelectric coupling and carry out the shaping (see figure 3), by shaping, paraphase just obtains a very desirable modulation signal, and supersonic frequency is modulated.Make power converter that a desirable driving signal (see figure 6) be arranged, drive the IGBT module, carry out power transfer.Guarantee that module has long working life.

4, single-chip microcomputer adopts the programmable 8-bit microprocessor of 89C51.Need not to add RAM, program is reliable, regularly accurately.

5, display circuit adopts CD14495 to drive 0.8 inch LED.Show operating frequency and time, clear, directly perceived.Need not instrumentation and go measuring frequency.

6, this instrument ventilation and heat is good, and working stability is reliable.

Claims

1, novel ultrasonic power power supply of a kind of utilization and high-performance piezoelectricity emission-type transducer, utilize single-chip microcomputer to carry out time control, make the complete machine high-power ultrasound generator of operation continuously, being connected of each working cell that it is characterized in that this machine is: switch control unit is connected with UPC, source of ultrasound signal, low-tension supply, power conversion unit, source of ultrasound signal is connected with low-tension supply again, power conversion unit is connected with high voltage source, output circuit again, and display circuit is connected with CPU.

2, high-power ultrasound generator according to claim 1, it is characterized in that two power model IGBT1 of power transfer and the connected mode of IGBT2 are: module I GBT1 and IGBT2 one end are with anodal in parallel, one end is in parallel with negative pole, the other end is 8 inputs (G1-E2), is connected with ON-OFF control circuit drive block output respectively; Two E1 are connected with the O utmost point by the first utmost point of module, transformer B1 and B2, R, the C of polyphone; The inferior utmost point of B1 and B2 is connected with the two ends of piezoelectric type oscillator Y by coil L1, L2.

3, high-power ultrasound generator according to claim 1 is characterized in that: the type of attachment of source of ultrasound signal, switch control unit and UPC, power conversion unit is to adopt photoelectricity to be of coupled connections.