KR100394211B1 - Device for eliminating scale of an internal wall of a heat exchange apparatus - Google Patents

Abstract

The present invention is a heat exchanger having a heat exchange pipe,

A tubular coil of a certain length is fitted to the outer circumference of the pipe, and an output of a square wave oscillation means for generating a square wave is applied to the coil.

The coil and its resistance provide a pipe inner wall descaling device of the heat exchanger configured to remove the scale inside the pipe by differentiating the square wave and applying it to the coil as a trigger pulse.

In the tubular coil, the first coil and the second coil may be directly connected and spaced apart from each other at a predetermined distance.

Description

Device for eliminating scale of an internal wall of a heat exchange apparatus}

The present invention relates to a heat exchanger having a heat exchanger pipe, in particular

A tubular coil of a certain length is fitted to the outer circumference of the pipe, and an output of a square wave oscillation means for generating a square wave is applied to the coil, and the applied square wave is applied to the coil with a trigger pulse to remove scale inside the pipe A pipe inner wall descaling device of a heat exchanger device.

The refrigerator can also be used as a means of heating in addition to its original purpose of cooling, which is called a heat pump. Heat pump is a heat pump that uses a large amount of heat, but the temperature is not available because the temperature is lowered by the freezer. An example of such a principle configuration is that when cooling, as shown in FIG. 1, the evaporator 1 is placed on one side and the condenser 2 is on the other side, the evaporator 1 is used as a cooler, and the condenser 2 is warmed. Select and use group. In recent years, they are installed in the same housing so that the air conditioner and the warmer can be selected and used.

On the other hand, in the case of a gas boiler, for example, when a heat exchanger is heated to obtain hot water, hot water passing through the boiler is heated, and the hot water is supplied through the outlet to supply hot water. Since the heat-exchanged fluid passing through the inside of the heat exchange pipe does not flow at high pressure and high speed due to its characteristics, a type of scale is trapped inside when it is not pure. The minerals that make up the scale in water exist in the form of dissolved ions, including the typical minerals found in water (calcium ions, magnesium ions, sulfate ions, carbonate ions). They are attracted and fixed to the wall by the influence of external electromagnetic or earth magnetic fields on the inner wall of the pipe that circulates the water.

The present invention is to provide a device that can solve this problem, an object of the present invention is to provide a device for removing the scale by causing the ionic components contained in the fluid flowing in the pipe to be forced to repeatedly access and separation to the wall. .

1 is a block diagram showing an example of a general heat exchanger,

2 is a schematic configuration diagram showing an example of the present invention;

3 is a perspective view of main parts of the present invention;

4A is an enlarged cross-sectional view of a main portion of the present invention;

4B is an enlarged conceptual view illustrating main parts of the present invention;

5 is a schematic configuration diagram showing another example of the present invention;

6 is an exemplary view of a square wave output from the square wave generating means of the present invention;

FIG. 7 is an exemplary diagram showing a trigger pulse waveform showing that the square wave of FIG. 6 is applied in the form of a trigger pulse when it is applied to a coil.

Explanation of symbols for the main parts of the drawings

10; tubular coil 11; solenoid coil

15; inner wall tube 16; outer wall tube

17; fixed cap 20; square wave oscillating means

30; pipe

That is, the present invention, in the heat exchanger having a heat exchange pipe,

A tubular coil of a certain length is fitted to the outer circumference of the pipe, and an output of a square wave oscillation means for generating a square wave is applied to the coil.

The coil and its resistance are to provide a pipe inner wall descaling device of the heat exchanger, which is applied to the coil as a trigger pulse by differentiating the square wave to remove the scale inside the pipe.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic configuration diagram of the present invention, and configured to apply the output of the square wave oscillation means 20 to both input ends of the tubular coil 10 having the solenoid coil 11.

Figure 3 is a perspective view illustrating a configuration in which the tubular coil 10 of the present invention is fitted to the outer circumference of the pipe 30, a tubular shape in which the solenoid coil 11 is built in a portion of the outer circumference of the pipe 30. Fit the coil (10). The tubular coil 10 has both input terminals P1 and P2.

4 is an enlarged cross-sectional view of the main portion of the tubular coil 10 of the present invention, the tubular coil 10 is fitted to the outer periphery of the pipe 30, the tubular coil 10 is the outside of the pipe 30 Coupling the inner wall tube 15 and the inner wall tube 15, the solenoid coil 11 wound around the outer circumference of the inner wall tube 15 to form a coil, and the outer circumference of the solenoid coil 11, The outer wall tube 16 and the inner and outer wall tubes 15 and 16 are configured to include a fixing cap 17 for coupling.

FIG. 5 is an exemplary view of a solenoid coil 11 constituting the tubular coil 10 of the present invention. The first and second coils 11-1 and 11-2 are spaced apart from each other by a predetermined distance D. Make up.

According to the present invention configured as described above, the tubular coil 10 is fitted to the outer periphery of the pipe 30, and the oscillating output of the square wave oscillating means 20 is applied to the input terminals P1 and P2 of the tubular coil 10. do. An example of a square wave generated in this case may be a waveform as shown in FIG. 6. When the waveform is applied to the coil as shown in FIG. 2 or 5, a trigger pulse as shown in FIG. 7 is applied at a portion where the polarity of the square wave changes due to the differential phenomenon caused by the inductance L and the resistance R of the coil. When such a trigger pulse is applied, a magnetic field is generated in the fluid by the right screw law of ampere. However, since the applied power source is a square wave and alternating current, the magnetic field continuously vibrates from one direction to another. This change in the magnetic field leads to a change in the electric field, which is called the law of parody. That is, as the induced electric field vibrates, all charged particles are affected by the electric field. This means that the ions in the fluid move rapidly by the electric field. In short, in the electric field, cations move toward the cathode and negative ions move toward the anode as shown in FIG. 4A. In this state, when the pulse polarity of the square wave is changed, the positions of the ions are shifted, and thus the ions strongly collide with the inner wall of the pipe. These ions collide better with each other because they move in opposite directions in one direction without moving in any direction. In addition, because they are accelerated by the electric field, they have more energy when they collide. Another factor that increases the collision coefficient is nuclear shielding. Nuclear shielding (or ion shielding) refers to the way in which ions are dissolved in water. The ions dissolved in water are completely enclosed by water molecules. The cathode at the end of the water molecule is attracted to the cation and the anode is attracted to the anion. Therefore, in the present invention, when a square wave is applied to the tubular coil 10, an electric field is generated and thus ions actually start to move. Water molecules, however, have a negative polarity and are attracted to both sides and do not move much. Thus ions are attracted together along the water molecule. The distortion of the ionization layer caused by the movement of these ions is known as the damping effect. The result of the damping effect is a small gap in the ions towards the direction of motion. Thus, the ions colliding under the electric field are less shielded and thus more likely to collide with each other. Therefore, the large scale is reduced to a smaller scale, and the ions to be scaled are dissolved by the forced collision to maintain the dissolved state. The dissolved crystals grow nucleated and dissolved and do not stick to the surface because they have enough time to grow and grow until the crystal first reaches the tube wall or surface of the device.

4B conceptually illustrates a tubular coil 10 in a state in which, for example, calcium carbonate is dissolved in a molten fluid (hard water) when the flow of the fluid flowing inside the pipe 30 moves from left to right. Induced electric field induced by) makes fine nuclei of calcium carbonate, and the nuclei of insoluble calcium carbonate thus formed are crystalline floats of insoluble calcium carbonate that are soft and non-adhesive while attaching calcium carbonate dissolved in water like a snowball. As a result, calcium and bicarbonate ions dissolved in supersaturated water are removed on the inner wall on a scale.

The preferred solenoid coil 11 of the present invention can be exemplified by separating the first and second coils 11-1 and 11-2, as shown in FIG. In the case of installing the first and second coils 11-1 and 11-2, which are directly connected to the positions for separating the sections, the so-called dual driving effect is provided.

The present invention described above is not limited to the above-described embodiments and drawings, and various permutations, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

As described above, the present invention allows the ionic components of the fluid flowing inside the pipe used for heat exchange and the like to be closely reciprocated with each other, thereby obtaining an effect of blocking the formation of scale. To this end, it is easy to install because the tubular coil that functions as a separate coil is fitted to the outer periphery of the pipe. In addition, since only a square wave generating means for generating a square wave can be operated, a separate control means is not required.

Claims (2)

In a heat exchanger device having a pipe for heat exchange, A tubular coil of a certain length is fitted to the outer circumference of the pipe, and an output of a square wave oscillation means for generating a square wave is applied to the coil. The coil and its own resistance is applied to the coil as a trigger pulse by differentiating the square wave to remove the scale inside the pipe, characterized in that the pipe inner wall scale removing device of the heat exchanger. (delete)