KR20100107229A - Ultrasonic scale prevention device with ultrasonic generator and transducer as one structure device - Google Patents

Abstract

PURPOSE: An integrated ultrasonic scale prevention and removal device is provided to minimize power loss generated in wires between a transducer and a pulse generator since the distance between the transducer and the pulse generator is reduced to a minimum. CONSTITUTION: An integrated ultrasonic scale prevention and removal device comprises a pulse generator(50), a transducer(40), and a rod-shaped connecting member. The transducer generates ultrasonic vibrations by the pulse voltage generated in the pulse generator. Scales created in various pipes are suppressed by a pulse generator and a transducer. The single pulse generator and the single transducer are connected by the rod-shaped connecting member and are integrated with each other.

Description

Ultrasonic scale prevention device with ultrasonic generator and transducer as one structure device}

The present invention relates to an integrated ultrasonic scale prevention device for suppressing the generation of scales and removing the generated scales generated in a boiler, a heat exchanger, a pipe, and the like by using ultrasonic waves, and more particularly, to suppress the generation of scales and to remove the generated scales. The present invention relates to an integrated ultrasonic scale prevention device in which a frequency of a transducer matches a natural frequency of a boiler, a heat exchanger, and a pipe, and integrates a transducer and a pulse generator.

In general, the scale generated on the inner wall of the boiler's inner pipe or water pipe due to heavy metal ions or fine solids in the water increases the energy consumption by disturbing the thermal efficiency or the flow of the fluid. Therefore, in order to effectively remove such scales, the scales may be removed by using organic and inorganic compounds, such as a cleansing agent.

In particular, boilers operated at high temperatures are periodically subjected to customs operations such as acid cleaning to remove scale.

However, such customs work, such as cleaning agents and acid cleaning, there is a problem that waste water is generated to cause environmental pollution, or the waste water must be purified.

Therefore, in order to solve such a problem, a technique of suppressing scale generation occurring in a pipe of a boiler, various heat exchangers, water pipes, etc. and removing the scale generated by using ultrasonic vibration without using chemicals is disclosed in Documents 1 to 5. It is currently used in heat exchangers of boilers in operation.

(Document 1) Republic of Korea Patent Publication No. 10-0095772 (1996. 2. 15.)

(Document 2) Korean Utility Model Publication No. 20-2000-0005182 (March 25, 2000)

(Document 3) US Pat. No. 2,269,734 (February 10, 2006)

(Document 4) Russia 2,269,734 (February 10, 2006)

(Document 5) Republic of Korea Patent Publication No. 10-0764819 (2007. 10. 08.)

A pulse generator circuit for generating an oscillation signal of 20 kHz, which is an ultrasonic signal, and a technology using a transducer for generating ultrasonic waves by converting the signal into a physical vibration by the signal generated by the pulse generator are described in the above-mentioned Korean Patent Publication No. 10-0764819. It is disclosed in the call.

The technique disclosed in the above publication includes a main body 20 including a resonator for generating ultrasonic waves and a controller for controlling an operating state of the resonator as shown in FIGS. 1 and 2; And a transducer 10 for generating ultrasonic waves by the power applied from the main body 20 and the ultrasonic wave generation signal. The main body 20 and the transducer 10 are connected at a predetermined distance and connected to the main body 20. ) Is a resonant circuit consisting of a diode, a polar capacitor, a resistor, a nonpolar capacitor, and a thyristor, and detects the operation state of each transducer 10 on the output line of the thyristor and the nonpolar capacitor. Resonator means including a coil for driving LED to include; The transducer 10 is a predetermined portion by using a flange 15 to the portion where the magnetostrictive vibrator 11 and the waveguide 13 for transmitting the ultrasonic wave is connected It is formed to be fixedly coupled to one side of the cover 14 through the fastening medium, the other side of the cover 14 is to be fixedly coupled to the pedestal (17).

Since the technique disclosed in the above publication generates ultrasonic vibrations in several transducers 10 using the oscillation frequency supplied by one main body 20, the boiler, heat exchanger, piping, etc., to which the waveguide 13 is attached, have inherent characteristics. There is a problem that must be installed in a state that does not cause vibration and resonance.

In addition, since a plurality of transducers 10 for generating ultrasonic waves and a main body 20 for generating a pulse voltage are evenly spaced up to about 30m, power loss occurs in the wiring.

In other words, the natural frequencies of boilers, heat exchangers, and pipes are different in each case, so pulse power must be supplied from the transducers so that the vibrations of the transducers attached to each other can be exactly matched. have.

Accordingly, an object of the present invention is to solve the conventional problems as described above, the vibration of the waveguide for transmitting ultrasonic vibrations and the natural frequency of the boiler, heat exchanger, piping, etc. to which the waveguide is attached can accurately cause resonance. The present invention provides an ultrasonic scale prevention device in which a transducer and a pulse generator are integrated so that wiring between the transducer and the pulse generator can be performed within 1 m.

Further, another object of the present invention is to provide an ultrasonic scale prevention device in which the transducer and the pulse generator are integrated by suppressing the ultrasonic vibration generated from the transducer to be transmitted to the pulse generator as much as possible.

In addition, another object of the present invention is to provide an ultrasonic scale prevention device in which the transducer and the pulse generator are integrated in a structure in which heat generated from a boiler, a heat exchanger, a pipe, or the like is not transmitted to the pulse generator through the transducer.

In addition, another object of the present invention is to provide an ultrasonic scale prevention device integrating a transducer and a pulse generator which can adjust the position of the transducer and the pulse generator in accordance with the state of the installation place.

In order to achieve the above object, the integrated ultrasonic scale preventing and removing device according to the present invention suppresses scales generated in various pipes by a pulse generator and a transducer for generating ultrasonic vibration by the pulse voltage generated by the pulse generator, In the ultrasonic scale prevention and removal apparatus for removing the generated scale, the one pulse generator and the one transducer is characterized in that formed integrally by connecting the rod-shaped connecting member.

In addition, in the integrated ultrasonic scale prevention and removal apparatus according to the present invention, the rod-shaped connecting member is characterized in that connected to the pulse generator and the transducer, respectively, via a vibration transmission preventing member.

In addition, in the integrated ultrasonic scale prevention and removal apparatus according to the present invention, the rod-shaped connecting member is characterized in that connected to the pulse generator and the transducer as a bolt through the vibration transmission preventing member, respectively.

In addition, in the integrated ultrasonic scale prevention and removal apparatus according to the present invention, the rod-shaped connecting member is connected to one end of the shaft, the other end of the shaft is characterized in that connected to the transducer via the vibration transmission preventing member. do.

In the integrated ultrasonic scale prevention and removal apparatus according to the present invention, the transducer includes a magnetostrictive vibrator for generating ultrasonic vibrations and a waveguide for transmitting vibrations generated from the magnetostrictive vibrators to the various pipes and a transducer case for accommodating them. It includes, The plate is characterized in that the vibration is fixed to the transducer case via the transmission member.

In addition, in the integrated ultrasonic scale prevention and removal apparatus according to the present invention, the length of the rod-shaped connecting member is longer than 1/2 of the sum of the length of the transducer case and the length of the generator case, it is less than 1m It features.

In the integrated ultrasonic scale prevention and removal apparatus according to the present invention, the frequency of the pulse generated in the generator is characterized in that the oscillation at the same frequency as the natural vibration frequency of the various pipes.

As described above, the integrated ultrasonic scale prevention device according to the present invention is to suppress the generation of the scale by ensuring that the frequency of the waveguide for transmitting the ultrasonic vibration and the natural frequency of the boiler, heat exchanger, piping, etc. to which the waveguide is attached exactly match There is an effect that can increase the removal efficiency of the generated scale.

In addition, the integrated ultrasonic scale prevention device according to the present invention has the effect of minimizing the power loss generated in the wiring between the transducer and the pulse generator by reducing the distance between the transducer and the pulse generator to a minimum distance.

The integrated ultrasonic scale prevention device according to the present invention has the effect of minimizing the failure generated in the pulse generator by maximally suppressing the transmission of the ultrasonic vibration generated from the transducer to the pulse generator.

The integrated ultrasonic scale preventing device according to the present invention has an effect of preventing heat generated from a boiler, a heat exchanger, a pipe, etc. from being transmitted to the electronic circuit of the pulse generator through the transducer.

Integrated ultrasonic scale prevention device according to the invention has the effect that the position can be adjusted according to the state of the installation place.

The above and other objects and novel features of the present invention will become more apparent from the following description and the accompanying drawings.

First, the concept of the present invention will be described.

Figure 3 is a perspective view showing the concept of the integrated ultrasonic scale prevention and removal apparatus according to the present invention.

In FIG. 3, reference numeral 40 denotes a transducer that performs ultrasonic vibration by receiving a voltage of a pulse waveform generated by the generator 50 to be described below.

Transducer 40 is a waveguide 42 for transmitting the vibration force vibrating ultrasonically therein in the boiler, heat exchanger, piping, etc. is fixed to the transducer case 44.

Reference numeral 50 denotes a generator for generating a voltage of 18 to 23 kHz pulse waveform generated in an electronic circuit (not shown) built therein.

One transducer 40 and one generator 50 have respective cases 44 and 52 connected at both sides by shaft 70 and arm 80.

Thus, the transducer 40 and the generator 50 which are integrally connected by the shaft 70 and the arm 80 are made within 1m of the distance. That is, the length of the arm 80 has a length of 1 m or less.

In the case of general commercial power, since the frequency is 60 Hz, the loss does not occur significantly even when power is supplied at a distance of 20 to 30 m, but the power used in the technical field of the present invention is 18 to 18, which is much higher than that of general commercial power. Since the pulse power of the frequency of 23 kHz is used, when the distance between the transducer 40 and the generator 50 is far, power loss is generated a lot.

Therefore, although the converter 10 and the main body 20 are conventionally installed up to about 30 m apart, a lot of power loss occurs in the wiring, but in the present invention, the transducer 40 and the generator 50 are close to each other within 1 m. Since it is integrated, the power of the pulse waveform generated in the generator 50 is supplied to the transducer 40 with little loss in the wiring 54.

Hereinafter, an embodiment in which the transducer 40 and the generator 50 are integrally connected and fixed according to the present invention will be described in detail.

First, a method of fixing the waveguide 42 and the transducer 40 will be described.

4 is a cross-sectional view showing a structure in which a transducer and a generator are integrated in accordance with the present invention.

According to FIG. 4, as described above, one transducer 40 and one generator 50 are provided with an arm 80 in which each case 44 and 52 is a shaft 70 and a rod-shaped connecting member. It is connected at the side.

Transducer 40 has waveguide 42 and magnetostrictive vibrator 49 mechanically fixed (usually welded), and waveguide 42 is inserted with magnetostrictive vibrator 49 inserted into transducer case 44. It is fixed to the transducer case 44.

The fixing between the waveguide 42 and the transducer case 44 is fixed by the bolt 48 through the hole 43 provided in the transducer case 44. However, the rubber packing 46 serving as a vibration preventing member between the waveguide 42 and the transducer case 44 so that the vibration of the waveguide 42 ultrasonically vibrated by the magnetostrictive vibrator 49 is not transmitted to the transducer case 44. Fixing with a bolt 48 through the (47).

Hereinafter, a method of connecting and fixing the shaft 70 to the transducer case 44 will be described.

One end of the male screw is formed, and the other end of the head portion is fixed to the shaft 70 is formed on both sides of the transducer case (44). At this time, the vibration in the transducer case 44 is interposed between the transducer case 44 and the shaft 70 via a rubber packing 71, which is a vibration transmission preventing member, to prevent the vibration from being transmitted to the shaft 70. Also, the shaft 70 is fixed to the transducer case 44 with a nut 76 through a rubber packing 72 that is a vibration transmission preventing member.

Hereinafter, a method of connecting and fixing the shaft 70 and the arm 80 will be described.

The arm 80 is provided with the connection part 81 in which the hole 83 is perforated at both ends.

The connection fixing of the shaft 70 and the arm 80 contacts the connection part 81 provided in the one end of the arm 80 to the head part of the shaft 70, and the female screw 78 of the shaft 70 with the bolt 87. By tightening).

Hereinafter, a method of connecting and fixing the arm 80 and the generator case 52 will be described.

The connection of the arm 80 and the generator case 52 is fixed between the generator case 52 and the connection portion 81 provided at the other end of the arm 80 via a rubber packing 92 which is a vibration transmission preventing member. The inside of the 52 is also connected and fixed with a bolt 97 and a nut 96 via a rubber packing 91 which is a vibration transmission preventing member.

Reference numerals 74, 84, and 94 are washers, and 99 is a heat sink.

In this way, the ultrasonic scale prevention device in which the transducer 40 and the generator 50 are integrated in a one-to-one manner causes the oscillation frequency generated by the generator 50 to resonate with the natural frequency of a pipe such as a boiler, thereby resonating. It is possible to effectively suppress the generation of the generated scale and to remove the scale generated in the pipe.

In addition, since the transducer 40 and the generator 50 are connected by the shaft 70 and the arm 80 to be integrated, the heat generated from the boiler or the like is not conducted from the transducer 40 to the generator 50. 50) The electronic circuit provided therein can be protected from heat, and since the vibration generated from the transducer 40 is not transmitted directly to the generator 50, the electronic circuit provided inside the generator 50 is also protected from vibration. You may.

All.

In addition, a portion that is coupled to integrate the transducer 40 and the generator 50, that is, between the waveguide 42 and the transducer case 44, between the transducer case 44 and the shaft 70, the arm 80. Since the ultrasonic wave vibration from the waveguide 42 is not transmitted to the electronic circuit inside the generator 50 because the vibration transmission preventing member is coupled between the generator and the generator 50, the durability of the generator 50 can be increased. .

Hereinafter will be described the state of use of the integrated ultrasonic scale prevention and removal apparatus according to the present invention.

The integrated ultrasonic scale prevention and removal apparatus according to the present invention is generally used by being connected and fixed to the arm 80 in a state where the transducer 40 and the generator 50 are horizontal as shown in FIGS. 3 and 4.

However, since the generator 50 protrudes a lot toward the rear part, the arm 80 may be installed so that the generator 50 is installed on the upper part of the transducer 40 as shown in FIG. 5. Can be used to fix the connection. In this case, the length of the connecting member should be longer than half of the length of the length of the transducer case 44 and the length of the generator case 52.

In the above-described embodiment, the transducer 40 and the generator 50 are integrated using the shaft 70 and the arm 80 between the transducer 40 and the generator 50, but the transducer 40 ) And the generator 50 are the same width, the transducer 40 and the generator 50 may be integrated using only the arm 80 without using the shaft 70.

In addition, when the width of the generator 50 is smaller than the width of the transducer 40, the shaft 70 may be provided on the generator 50 side to integrate the transducer 40 and the generator 50.

The integrated ultrasonic scale prevention and removal apparatus according to the present invention can be usefully used in the field for suppressing scale generation occurring in a boiler, heat exchanger, pipe, and the like and removing the generated scale.

1 is a cross-sectional view showing a conventional transducer

Figure 2 is a perspective view showing the appearance of a conventional pulse generator

Figure 3 is a perspective view showing the concept of the integrated ultrasonic scale prevention and removal device according to the present invention

4 is a cross-sectional view showing a structure in which the transducer and the generator are integrated in accordance with the present invention.

5 is a cross-sectional view showing a state in which the transducer and the generator are vertically disposed in the integrated ultrasonic scale prevention and removal apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

40: transducer 42: waveguide

46, 47, 71, 72, 92: rubber packing 49: magnetostrictive oscillator

50: generator 60: connecting member

70: shaft 80: arm

Claims (7)

An ultrasonic scale prevention and removal apparatus for suppressing scales generated in various pipes by a pulse generator and a transducer generating ultrasonic vibrations by the pulse voltage generated by the pulse generator, and removing the generated scales. And one pulse generator and one transducer connected to each other by a rod-shaped connecting member. The method of claim 1, The rod-shaped connecting member is connected to the pulse generator and the transducer via the vibration transmission preventing member, respectively, characterized in that the ultrasonic scale prevention and removal. 3. The method of claim 2, The rod-shaped connecting member is connected to the pulse generator and the transducer as a bolt through the vibration transmission preventing member, respectively, characterized in that the ultrasonic scale prevention and removal. 3. The method of claim 2, The rod-shaped connecting member is connected to one end of the shaft, the other end of the ultrasonic scale preventing and removing device, characterized in that connected to the transducer via the vibration transmission preventing member. The method of claim 1, The transducer includes a magnetostrictive vibrator for generating ultrasonic vibrations and a waveguide for transmitting the vibration generated from the magnetostrictive vibrator to the various pipes, and a transducer case for accommodating them, wherein the conduit is disposed through the vibration transmission preventing member. Ultrasonic scale prevention and removal device, characterized in that fixed to the transducer case. The method according to any one of claims 1 to 5, The rod-shaped connection member is longer than 1/2 of the length of the sum of the length of the transducer case and the length of the generator case, ultrasonic scale prevention and removal device, characterized in that less than 1m. The method of claim 6, Ultrasonic scale prevention and removal device, characterized in that the frequency of the pulse generated in the generator oscillates at the same frequency as the natural vibration frequency of the various pipes.

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