KR100821077B1 - Supersonic instrument for removing scale inside pipe - Google Patents

Abstract

A supersonic device for removing scale in a pipe is provided to effectively remove the scale by allowing a horn to be in contact with the scale at a predetermined angle and pressure, and then applying supersonic vibration and pressure corresponding to a density of the scale. A supersonic device for removing scale in a pipe(120) comprises a body(100), a rotation shaft member(102), a rotation member(104) fixed at an end of the rotation shaft member, a supersonic oscillator(108) and a horn(112). The body is provided in the form of a vehicle which moves in the pipe. The rotation shaft member is mounted in the middle of a front surface of the body and is rotated by a driving force of a motor. The supersonic oscillator is supported at one end of the rotation member. The horn is installed at an end of the supersonic oscillator and is adhered to an inner wall of the pipe.

Description

Supersonic instrument for removing scale inside pipe

1 is a micro CT photograph of the internal structure of the scale formed in the water supply pipe.

Figure 2 is a basic configuration of the ultrasonic device for removing the scale in the tube according to an embodiment of the present invention.

3 shows the principle of operation of the mechanism for manipulating the horn of FIG.

4A and 4B show one preferred embodiment of the shape of the horn.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing a scale formed in a tube, and more particularly, to an apparatus for removing a scale in a tube using ultrasonic waves.

Conventional techniques of an intravascular descaling apparatus using ultrasonic waves include the following.

1) Korean Patent Application No. 2002-70248 (Scale Descaling Device Using Ultrasonic Wave)

2) Korean Patent Application No. 2002-60184 (Scale detection and removal device of dust collection pipe)

3) Korea Utility Model Application No. 2001-26787 (simultaneous processor for washing and sterilizing water pipes)

4) Korean Patent Application No. 1999-47913 (Integral ultrasonic scale removal and prevention device)

First of all, Korean Patent Application No. 2002-70248 (Scaling-out device of ultrasonic pipe) uses a body, a connector fixed to one end of the body to connect a pipe, and is installed on an outer surface of the body and electrically connected to an ultrasonic generator. At least one ultrasonic vibrator connected to generate ultrasonic waves.

Korean Patent Application No. 2002-60184 (Scale Detection and Removal Device of Dust Collecting Pipe) includes: an ultrasonic detection unit having a scale formed inside the dust collecting pipe and an ultrasonic probe configured to detect the thickness of the scale; Ultrasonic removal unit having a hammer for generating a strike force by the magnetization of the electromagnet; And a power supply unit configured to alternately move the ultrasonic detector and the ultrasonic remover closer to the dust collecting pipe, and detect that the scale is attached to and grow on the inner surface of the dust collecting pipe and remove the scale thus detected to collect the dust collecting pipe. Has the effect of cleaning the inner surface of the.

Korean Utility Model Application No. 2001-26787 (simultaneous processor for washing and sterilizing water pipes) uses mechanical vibration energy of sound waves by simultaneously using high frequency ultrasonic wave and ozone with strong sterilizing effect for cleaning and sterilizing water pipes. In addition to the effect of removing the scale by the conventional ultrasonic method using only the bay, it has the effect of simultaneously sterilizing microorganisms and bacteria in the pipe. In addition, it is not only an effect of solving the problem of the complicated process (dual treatment) of the cleaning process and the sterilization process that the method of using ultrasonic wave and ozone respectively for the purpose of removing the scale and sterilization, but also reducing the overall treatment time and the treatment effect. It provides a differentiated effect to achieve maximum.

Korean Patent Application No. 1999-47913 (integrated ultrasonic scale removing and preventing device) is a circuit board in which a control circuit for generating an electric oscillation signal is built and an oscillation signal transmitted from the circuit board are converted into physical vibration. A transducer to generate ultrasonic waves, an insulating material wrapped around the transducer to block heat generated from the transducer from being transmitted to the circuit board, and the circuit board, the transducer and the heat insulating material are integrally installed. And a case enclosing the outside while being supported, and an ultrasonic scale removing and preventing device comprising an elastic medium for preventing vibration from being transmitted to the circuit board while the circuit board is fixed to the case. Is a counter for setting the oscillation frequency, and A control device for outputting a control signal for generating an electrical oscillation signal according to the oscillation frequency, a generator for generating an electrical oscillation signal according to the control signal of the control device, and an oscillation signal applied from the generator. It includes a driver that amplifies and transmits the driving signal to the transducer, and the oscillation is made by preventing the signal attenuation by preventing the high heat and vibration generated from the transducer while simultaneously manufacturing the control unit and the transducer. The present invention provides an integrated ultrasonic scale removal and prevention device that allows the ultrasonic energy to be transmitted without loss, and prevents malfunction of induced currents inherently and maintains its performance continuously.

FIG. 1 is a micro CT photograph of an internal structure of a scale formed on an inner wall of a water pipe, and a sample is taken to check scale characteristics, and then the internal structure is identified using micro CT (computer tomography). In the picture of Fig. 1, the lower part of ocher color (P) is the pipe part and the upper part is the scale part. As a result of the measurement, the inside of the scale is composed of four layers (L1 to L4), and the part (L1) and the outermost layer (L4) in contact with the tube are strongly adhered to the inner wall of the tube to a degree similar to the density of the tube. It can be seen that the inside of the scale becomes smaller in density.

These prior arts have the effect of removing the weak scale attached to the pipe using only the vibration of the ultrasonic, but does not remove the scale strongly formed in the inner pipe as shown in FIG.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide an apparatus for effectively removing scales formed in a tube and strongly fixed.

According to an aspect of the present invention, there is provided an ultrasonic apparatus for removing an in-scale scale, comprising: a main body provided as a vehicle capable of moving in a pipe; A rotating shaft member mounted at a central portion of the front surface of the main body and rotating by a driving force of a motor mounted to the main body; A rotating member fixed to an end of the rotating shaft member; An ultrasonic oscillator pivoted at an end of the rotating member and supported and rotated by a predetermined pressure at a predetermined angle; And a horn installed at an end of the ultrasonic oscillator and in close contact with the inner wall of the pipe at a predetermined pressure according to a force applied by the rotation of the ultrasonic oscillator.

The intimate pressure of the pipe inner wall of the horn is determined as a function of the driving force of the main body and the rotational speed of the rotary shaft member.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote components that perform the same function.

Ultrasound is a sound that is high enough to be inaudible to the human ear. Industrially used ultrasonic waves are elastic vibration waves that propagate in a medium. Currently, the application of ultrasonic waves is used in a wide range of industries, fisheries, medicine. The application of ultrasonic waves includes the application of high energy of ultrasonic waves and the application of information measurement using properties as waves of ultrasonic waves. Ultrasonic processing is a category of high energy ultrasonic applications.

Ultrasonic processing is very small, but the impact is repeated every tens of thousands of times, so that a sufficiently practical processing speed can be obtained, and it is suitable for the processing of brittle materials that are hard and brittle, that is, have a low tensile strength / compressive strength ratio. Do.

In order to determine the scale characteristics in the water pipe, which is the subject of the present invention, a sample was taken and the internal structure was determined using micro CT (computer tomography). 1 is a micro CT photograph of the internal structure of the scale formed in the water supply pipe.

In the picture of Fig. 1, the lower part of ocher color (P) is the pipe part and the upper part is the scale part. As a result of the measurement, the inside of the scale is composed of four layers (L1 to L4), and the outermost layer (L4) can be seen that the density of the tube is similar, and the inside can be seen that the difference in density.

If the measurement results can destroy the outermost layer (L4) of the scale, since the inside is less dense, more energy is not required to remove the scale, and the internal structure of the scale fixed in the tube can effectively apply the ultrasonic device of the present invention. Become a target.

In order to remove the scale strongly formed in the pipe as shown in Figure 1 it is not enough to use only ultrasonic vibration. However, if a strong contact or a scratching force is applied by physically contacting a fixed scale, it may damage the coating in the pipe or cause physical damage to the pipe, which may cause an adverse effect of shortening the life of the pipe. do.

2 is a basic configuration of the ultrasonic apparatus for removing the scale in the tube 120 according to an embodiment of the present invention, the main body 100, the rotating shaft member 102, the rotating member 104, the ultrasonic oscillator 108 And a horn 112.

The main body 100 is provided as a vehicle that can move in the pipe 120.

The rotary shaft member 102 is mounted at the central portion of the front surface of the main body 100, and rotates with a driving force of a motor (not shown) mounted on the main body 100.

The rotating member 104 is fixed to the end of the rotating shaft member 102 to rotate.

The ultrasonic oscillator 108 is pivoted at the end of the rotating member 104 to be supported and rotated by a predetermined pressure at a predetermined angle δ. A horn 112 is mounted to each of the ultrasonic oscillators 108, and the structure of the ultrasonic oscillator 108 and the horn 112 may be one or a plurality of ultrasonic apparatuses of the present invention.

Horn 112 is a portion that is connected by the ultrasonic oscillator 108 and the connecting member 110 to directly remove the scale of the tube 120. The horn 112 is installed at the end of the ultrasonic oscillator 108 and is in close contact / release at a constant pressure on the inner wall of the pipe 120 according to the force applied by the rotation of the ultrasonic oscillator 108.

The ultrasonic apparatus for removing the in-scale scale of FIG. 2 moves in the pipe 120 to the position where the scale is formed. Therefore, the ultrasonic apparatus moves the horn 108 to maintain the height Δ that is not in contact with the inner wall of the pipe 120 to facilitate entry into the pipe 120. It operates to be in contact with the inner wall of 120. The mechanism for operating the horn 108 in this way is shown in FIG. 3.

The mechanism unit for manipulating the contact angle of the horn 108 of FIG. 3 can adjust the pressure angle which the horn makes with a removal object. It is provided with a pivot part and a pressure generating part. Referring to FIG. 3, the ultrasonic oscillator 108 is pivoted to the rotating member 104 to manipulate the contact angle of the horn 108 in the tube (δ of FIG. 2), and the contact pressure is generated at the pressure generating unit 114. Adjust it. The dual pressure generating unit 202 is a part for adjusting the appropriate pressure to act between the horn 108 and the pipe 120 according to the state of the pipe 120. At this time, the contact pressure of the inner wall of the pipe of the ultrasonic horn 112 may be determined as a function of the driving force of the main body 100 and the rotational speed of the rotary shaft member 102.

4A and 4B illustrate one preferred embodiment of the shape of the horn 108. The shape of the horn 112 is made of a shape that can effectively remove the scale of the tube (120). The size of the tube 120 determines the basic shape of the horn 118. If possible, it is desirable to have a bottom shape that matches the radius of the tube 120 to remove a wider scale at a time. The horn 112 portion has a structure having a constant angle θ with respect to the traveling direction normal to facilitate the discharge of the scale removed because the work moves forward. In addition, in order to work on all the inner diameters of the pipe 120, the horn 112 must have a structure that rotates, so that it is preferable to have a structure having a constant angle φ in the circumferential direction.

The best embodiments have been disclosed in the drawings and specification above. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the ultrasonic apparatus for removing the scale in the tube according to the present invention uses the ultrasonic vibration and the pressure to contact the horn at a predetermined angle and pressure to the scale which is formed on the inner wall of the pipe and is strongly fixed. Destroy the outermost layer. The smaller ultrasonic vibrations and pressures effectively remove the internal scale having a lower density.

According to the present invention has the following effects.

First, it is possible to remove the scale that is firmly fixed in the pipe, while maintaining less of the coating and thus affecting the coating in the pipe.

Second, the physical impact on the pipe can be minimized and optimized, which does not affect the life of the pipe.

Third, the scale can be removed regardless of whether the scale in the pipe is dry or wet.

Fourth, it provides a structure of a descaling device that can be miniaturized.

The invention is not limited to the examples described above and represented in the drawings. Those skilled in the art taught by the above-described embodiments, many modifications to the above-described embodiments are possible by substitution, erasure, merging, etc. within the scope and object of the present invention described in the following claims.

Claims (2)

A main body provided as a vehicle that can move in the pipe; A rotating shaft member mounted at a central portion of the front surface of the main body and rotating by a driving force of a motor mounted to the main body; A rotating member fixed to an end of the rotating shaft member; An ultrasonic oscillator pivoted at an end of the rotating member and supported and rotated by a predetermined pressure at a predetermined angle; And A horn installed at an end of the ultrasonic oscillator and in close contact with the inner wall of the pipe at a predetermined pressure according to a force applied by the rotation of the ultrasonic oscillator; Ultrasonic device for removing the in-scale scale, characterized in that provided with. The method of claim 1, Ultrasonic device for removing the scale in the pipe, characterized in that the pressure of the pipe inner wall of the horn is determined as a function of the driving force of the main body and the rotational speed of the rotary shaft member.

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