KR20170087081A

KR20170087081A - Microbubble washing method using a removable type being pulsed pipe cleaning devices and the equipment for cleaning pipes in the mold

Info

Publication number: KR20170087081A
Application number: KR1020160006220A
Authority: KR
Inventors: 조삼증; 오국택
Original assignee: 조삼증
Priority date: 2016-01-19
Filing date: 2016-01-19
Publication date: 2017-07-28

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable micro-bubble-type impulse pipe cleaning apparatus for cleaning a pipe in a mold and a cleaning method using the apparatus. More particularly, the present invention relates to a water tank 10 for supplying water w; A pump 20 connected to the water tank 10 at one side and connected to the bubble generator 40 at the other side for transferring water to the bubble generator 40; A gas supplier 30 connected to the bubble generator 40 at one side to supply a gas g and supplying the gas g at a higher pressure than the pump 20; And a nozzle 41 connected to the mold 5 at one end and narrowed at the end is constituted so that water W and gas k are supplied from the pump 20 and the gas feeder 30, A bubble generator (40) for generating a microbubble (k) inside the water by discharging the mixed fluid through the nozzle (41); And the nozzle 41 is connected to one side of the mold 5 to be cleaned so that the mixed fluid including the microbubbles k is strongly ejected by the bubble generator 40 and the mold 5 And thus it can be selectively connected to one side of the mold to be cleaned. Thus, convenience of operation is provided, and a separate medicine It is possible to perform cleaning by causing a collision with a foreign object remaining inside the mold by using impulse shock wave (water hammer), and it is possible to maximize cleaning efficiency by short cleaning time , It is a useful invention that can clean the mold cleanly, thereby improving the quality of articles to be molded later.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a movable micro-bubble-type impulse piping cleaning device for cleaning a pipe in a mold, and a cleaning method using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable microbubble-type impulse pipe cleaning apparatus for cleaning a pipe in a mold and a cleaning method using the apparatus. More particularly, the present invention relates to a movable microbubble- (Air) passing through a mechanical device having a rapid opening and closing function, and the thus pressurized mixed fluid is changed into kinetic energy and is strongly ejected to thereby remove the moving micro bubble type impulse pipe cleaning device for cleaning the pipe in the mold, and a cleaning method using the device to be.

Generally, corrosion and fouling phenomenon of metal molds are caused not only by shortening the lifetime of the mold due to scale, slime, sludge, etc. due to accumulation of rust and foreign matter by moving the working fluid (water) of cold / Which is the largest factor that deteriorates the quality of an injection molded article.

In addition, since the flow of water in the mold piping is prevented to increase the pump power for water transport, the production efficiency is lowered, and the quality of the injection molding machine and mold is lowered due to the lowering of the heat transfer efficiency .

Meanwhile, in order to solve the above-mentioned problem, in order to solve the above-mentioned problem, it has been possible to remove the scale or the like by inserting the cleaning tool into the inside of the mold piping, or to replace the mold with the internal piping, The above-described method has the disadvantage of involving time, money, manpower and equipment, although the defects can be eliminated in the operation.

In particular, due to the weight of the injection mold, the cleaning operation can not be performed frequently in the continuous process, and environmental pollution is increased when chemical agents are added.

First of all,

Registration number 10-1435986 (Special) The number of times of connection with the other end of the piping so that the piping is connected to one end of the piping installed in the boiler or heat exchanger that needs to be cleaned and the recovery liquid is supplied and the semen is recovered through the piping A chemical tank provided with a pipe; A supply valve and a shutoff valve provided in the middle of the supply pipe and the return pipe for controlling the supply and cutoff of the cleaning liquid; A pump interposed between the supply pipe and the chemical tank for pumping the cleaning liquid contained in the chemical tank; A compressor for generating a pneumatic shock wave so that a cleaning liquid pumped through the pump is short-circuited to impact the inside of the pipe; A control unit for controlling operation of the compressor, opening and closing of a supply valve and a shutoff valve; And a boiler for heating the washing liquid of the chemical tank, wherein the washing liquid is mixed with water and a detergent in a ratio of 9: 1, and the detergent is nitric acid (40% diluted nitric acid) Wherein the compressor blows the air pressure to the pipe at 0.5 to 0.7 MPa to circulate the cleaning liquid and the supply valve and the shutoff valve are short-circuited at intervals of 0.1 to 1.0 sec. will be.

An air inlet valve formed at an inlet to which air is supplied and adjusting the amount of air to be supplied, an air pressure meter (not shown) formed adjacent to the air inlet valve for indicating the pressure of the supplied air, A first air supply line in which the air input valve and an air pressure meter are located and air to be supplied is moved, a second air supply line branched from the first air supply line, and a third air supply line; A washing water supply means formed at an inlet to which washing water is supplied and including a washing water input valve for adjusting the amount of washing water to be supplied and a washing water supply line for moving the washing water to which the washing water input valve is disposed; A detergent supply tank which is formed in a mixed supply line to which piping for cleaning is connected and through which fine bubbles generated through the fine bubble generator are passed through the wash water supply line and which supplies the cleaning detergent to the mixed wash water, And a detergent input valve for controlling the supply amount of the detergent supplied from the detergent supply unit. And a control panel for controlling operations of the air providing means, the washing water supplying means and the detergent providing means, wherein the second air supply line and the third air supply line, which branch from the first air supply line of the air providing means, A fine bubble generator is provided at an end of the third air supply line and fine bubbles generated through the fine bubble generator are connected to a washing water supply line of the washing water supply means And an end of the mixed supply line is connected to the pipe while the second air supply line, the third air supply line, and the wash water supply line are connected to the mixed supply line, and the mixed supply line is provided with air, fine bubbles, Or a detergent is mixed and transferred to the inside of the pipe.

Registration No. 10-0821715 (especially) A compressed air supply unit for supplying compressed air to a pipe to be cleaned by generating compressed air; A liquid supply unit for supplying the liquid to the pipe to be cleaned by pumping; And a controller for controlling the compressed air supply unit and the liquid supply unit such that the compressed air and the liquid are alternately supplied to the pipe to be cleaned at a set cycle.

Registration No. 10-0305181 (especially) Compressed air generating means for generating and discharging compressed air necessary for washing into a piping in a state where water is filled; Air pressure regulating means for regulating the discharge pressure of the compressed air supplied to the pipe through the air generating means; A first pneumatic valve that is opened and closed by an external control signal so as to intermittently inject / stop the air adjusted by the air pressure regulating means into the pipe intermittently according to the spraying; A second pneumatic valve provided on a line branched from a line connecting the air pressure regulating means and the first pneumatic valve and opened and closed by an external control signal so as to switch the direction of air flow; Speed control means for controlling the opening / closing speed by changing the flow rate of air supplied through the second pneumatic valve; A rotary actuator connected to the speed control means and operated by receiving a control signal thereof; Means for supplying / blocking the cleaning auxiliary material into the pipe while being opened and closed by receiving the drive signal of the rotary actuator; A media container mounted on a line connecting the cleaning auxiliary material supply / blocking means and having a cleaning medium as a cleaning auxiliary material; Control means for controlling an opening and closing operation interval of the first and second pneumatic valves and controlling a predetermined number of pulses of air through the first pneumatic valve; And a swirling flow generating device for generating a swirling flow in the medium flowing in the medium by the shock wave generated by the air, water, and air introduced into the piping, and flowing into the pipe.

The conventional techniques described above are generally a fixed type connected to the piping so that only the piping connected to the cleaning device can always be cleaned in a fixed state. In other words, since only one pipe is cleaned, various pipes can not be selectively cleaned. In addition, due to their relatively large size, installation restriction and fixed configuration are very limited. In addition to water and gas, So that the economic efficiency is very low.

Accordingly, it is an object of the present invention to provide an apparatus for cleaning an existing production facility by a simple operation by selectively attaching the apparatus to a device to be cleaned by being manufactured in a mobile fashion so as to be irregularly used in various injection molding lines, The present invention has been accomplished with a focus on the provision of a movable impulse piping cleaning device for a mold and a cleaning method using the same for minimizing the required power.

As a technical concept to achieve the above object, a water tank 10 for supplying water w; A pump 20 connected to the water tank 10 at one side and connected to the bubble generator 40 at the other side for transferring water to the bubble generator 40; A gas supplier 30 connected to the bubble generator 40 at one side to supply a gas g and supplying the gas g at a higher pressure than the pump 20; And a nozzle 41 connected to the mold 5 at one end and narrowed at the end is constituted so that water W and gas k are supplied from the pump 20 and the gas feeder 30, A bubble generator (40) for generating a microbubble (k) inside the water by discharging the mixed fluid through the nozzle (41); And the nozzle 41 is connected to one side of the mold 5 to be cleaned so that the mixed fluid including the microbubbles k is strongly ejected by the bubble generator 40 and the mold 5 The present invention has been made to solve the above technical problem by constituting an impulse piping cleaning device for a mold,

The method of using the cleaning device includes a connecting step S100 of connecting the nozzle 41 of the bubble generator 50 to one side of the mold 5 to be cleaned; A mixed fluid forming step (S200) of supplying a water (w) and a gas (g), mixing the supplied water (w) and the gas (g) to form a mixed fluid constituting a layer; A bubble generating step (S300) of supplying the mixed fluid to generate bubbles (k) in the water (w) by rotation of the rotating body (43) and moving the bubbles (k) to the nozzle (41) side; A cleaning step (S400) of cleaning the interior of the mold (5) by generating an impurity (e) and impurities remaining in the interior of the mixed fluid containing the bubble (k) when moving into the mold (5); So as to solve the above technical problem.

INDUSTRIAL APPLICABILITY According to the movable impulse piping cleaning device for a metal mold and the cleaning method using the same, it is possible to constitute a relatively small scale and selectively connect to one side of a mold to be cleaned, It is possible to perform cleaning by causing collision with foreign matter remaining inside the metal mold by using impulse shock wave (water hammer) and forming a mixed fluid by itself without using any separate chemicals, The efficiency is maximized, and the mold can be cleanly cleaned, which is a useful invention that can improve the quality of articles to be molded later.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
2 is a view showing a configuration of a preferable nozzle of the present invention
Figure 3 is a diagram illustrating a preferred connection step of the present invention;
4 is a view showing a preferred mixed fluid forming step of the present invention
5 is a view showing a preferred bubble generating step and a washing step of the present invention
6 is a view showing a preferred recovery step of the present invention
Fig. 7 is a diagram showing a preferable overall use state of the present invention
8 is a flowchart showing a preferred embodiment of the present invention
9 is a diagram showing the principle of bubble generation and impulse of the present invention
10 is a view showing a comparison between the high-density bubble and the ordinary bubble of the present invention
11 is a graph showing a change in pressure inside the mold due to the impulse flow of the present invention
12 is a view showing before and after washing using the apparatus of the present invention

In order to clean commonly used piping, energy is applied to the inside of the pipe only by the inertia force of water by washing with water. In order to maximize the cleaning power, high-pressure water injection or chemical is added to perform physical-chemical scale removal there was.

However, in the above-mentioned conventional method, it is necessary to spray water at a high pressure so that a large amount of water and a device capable of applying the pressure are required, but the scale of the device is so large that the installation is very limited. , And there is a problem that the water needs to be washed once more by supplying water so that the chemical remaining in the pipe after the washing is completely discharged.

Accordingly, in the present invention, the pressurized water and air are injected to clean the pipe inside the mold, thereby generating an impulse by discharging the water including the micro / nano bubbles using the bubble generator, and ejecting the mixed fluid containing the microbubbles And simultaneously generates a band-shaped impulse flow inside the mold to vibrate the inside of the mold due to a strong impact (water hammer) between the foreign matter such as scale remaining in the pipe inside the mold and the micro- Microbubble-type impulse piping cleaning apparatus and cleaning method using the same The present invention provides a cleaning method using the apparatus.

Prior to describing the present invention, a water tank 10 for supplying water w; A pump 20 connected to the water tank 10 at one side and connected to the bubble generator 40 at the other side for transferring water to the bubble generator 40; A gas supplier 30 connected to the bubble generator 40 at one side to supply a gas g and supplying the gas g at a higher pressure than the pump 20; And a nozzle 41 connected to the mold 5 at one end and narrowed at the end is constituted so that water W and gas k are supplied from the pump 20 and the gas feeder 30, A bubble generator (40) for generating a microbubble (k) inside the water by discharging the mixed fluid through the nozzle (41); And the nozzle 41 is connected to one side of the mold 5 to be cleaned so that the mixed fluid including the microbubbles k is strongly ejected by the bubble generator 40 and the mold 5 In the form of a band-shaped impulse flow.

The bubble (k) is formed to a particle size of 10 to 60 microns, and the frequency of the impulse is 20 to 60 Hz or less.

The supply pressure of the water w is 3 to 5 bar and the supply pressure of the gas g is supplied at 3.5 to 5.5 bar.

A connection pipe 70 connected to one side of the water tank 10 is formed on the other side of the mold to which the nozzle 41 is connected and a plurality of filter units 80).

The method using the movable micro bubble type impulse pipe cleaning apparatus for cleaning a pipe in the mold includes a connecting step S100 for connecting the nozzle 41 of the bubble generator 50 to one side of a mold 5 to be cleaned; A mixed fluid forming step (S200) of supplying a water (w) and a gas (g), mixing the supplied water (w) and the gas (g) to form a mixed fluid constituting a layer; A bubble generating step (S300) of supplying the mixed fluid to generate bubbles (k) in the water (w) by rotation of the rotating body (43) and moving the bubbles (k) to the nozzle (41) side; (S400) of washing the inside of the mold (5) by generating flow of foreign matter (e) and impulse remaining inside the mixed fluid containing the micro nano bubbles (k) into the mold (5) ; .

After the cleaning step S400, the cleaned water w and the foreign matter e are moved through the recovery pipe 70 so that the foreign matter e is filtered by the filter 80 and the filtered water w And a collecting step (S500) of moving to the water tank (10) side.

Wherein the supply pressure and the flow rate of the water (w) and the gas (g) are selectively set according to the size of the pipeline to be cleaned, and then supplied.

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

1 to 3 and 7, a water tank 10 including water (w) therein is provided so as to be able to supply an external water source or an additional water (w) The other side of the water tank 10 is connected to the bubble generator 40 and the other side of the water tank 10 is connected to the bubble generator 40 to receive water w from the water tank 10, A pump 20 is provided to supply the gas.

4 or 5, a gas supplier 30 connected to the bubble generator 40 and connected to one side of the bubble generator 40 is further configured to supply the water w And the base body g, respectively.

At this time, it is preferable that the supply pressure of the base body (g) is supplied at a slightly higher pressure than the supply pressure of the water (w). This is because, when the supply pressure of the gas g is lower than the supply pressure of the water w, the water w and the gas g are not mixed to form a layer in forming the mixed fluid.

For example, when the supply pressure of water (w) is 3 bar, the pressure of gas (g) should be supplied at a pressure of 3.5 bar.

When the water (w) and the gas (g) are supplied at the above-described pressures, a mixed fluid constituting a layer is formed as shown in FIG. 4 or 5 and FIG. 1, The foreign matter scale inside the mold is removed due to the collision of the contaminants with the bubbles contained in the water.

Meanwhile, the bubble generator 40 is configured to generate micro bubbles having a high concentration of 100,000 / ml or more. As shown in FIGS. 4 to 5, the bubble generator 40 includes a nozzle 41 that is gradually narrowed toward the end, And a rotating body 43 is constituted to be connected to one side (injection port) of the metal mold to be cleaned. The water w injected from one side and the gas g injected from the other side are charged into the rotating body 43, (Nozzle) in which the water (w) and the gas (g) are introduced by the rotation of the rotating body 43 and at the same time the micron nano The mixed fluid containing the bubble k is discharged.

At this time, when a large amount of the mixed fluid is finally discharged due to the structure of the nozzle 41, the pressure is increased as it is discharged to a narrow space, so that the mixed fluid containing the bubble k is strongly discharged, Impinges on the inside of the metal mold 5 and collides with the solid material attached to the inside of the metal mold 5. At the same time, it infiltrates into a minute gap between the attached scale and the foreign substance and explodes so that the scale and the foreign matter e are kept in the form of a lump Fall off.

In other words, the foreign matter e in the mold 5 and the mixed fluid form a collision wave (water hammer) to generate vibration in the mold 5, and the frequency of the impulse is reduced to 20 to 60 Hz or less .

That is, the bubble generator 40 changes the kinetic (flow velocity) energy to pressure energy by passing the mixed fluid that is pressurized and supplied.

1, 4 and 7, a connection pipe 50 for interconnecting the water tank 10, the pump 20, the gas feeder 30 and the bubble generator 40 is formed, The connection pipe 50 may be formed of a synthetic resin or a metal material and may have one side of a connection pipe 50 through which the water w moves from the pump 20 toward the bubble generator 40, Each of the control valves 21 and 31 is formed at one side of the connection pipe 50 through which the gas g is moved from the feeder 30 toward the bubble generator 40, And the pressure of the gas g can be adjusted.

6, when the inside of the metal mold 5 is cleaned by the bubble generator 40, one side of the metal mold 5 is recycled to the side of the water tank 10 so that the water w containing the foreign substances can be recovered in the direction of the water tank 10 again. And a return pipe 70 connected to the mold 5 and connected to the water tank 10 at the other side. A filter 70 for filtering foreign matters (e) contained in the water w recovered is disposed at one side of the return pipe 70, So that only the filtered water w can be transferred to the water tank 10.

In other words, the cleaning apparatus of the present invention forms a mixed fluid using water (w) and gas (g), and then uses the mixed fluid including the bubble (k) through the bubble generator (40) So that the uniformity and safety of the cleaning efficiency can be ensured by washing the mold 5 more easily and the foreign matter e after the washing of the mold 5 is filtered and the foreign matter e is filtered, It can be collected again in the direction of the water tank 10 to be reusable, thereby maximizing the economic efficiency.

The cleaning device of the present invention configured as described above is constructed on a relatively small scale and can be easily applied to small devices such as a mold or the like and can be used not only in a fixed form but also in a device So that it can be easily connected and used. Thus, there is an effect that it is convenient for operation and can be widely used.

In addition, as described above, each of the modular apparatuses of the present invention can be configured to control the respective components (water tank, pump, gas feeder, bubble generator) ) And the gas (g), and to control the bubble generator (40).

The cleaning apparatus according to the present invention can selectively use the size of the cleaning apparatus according to the apparatus to be cleaned, not only the mold, but also the pressure of the water w and the gas g supplied according to the apparatus to be cleaned It is not limited to the embodiment of the present invention.

5: Mold
10: Water tank 20: Pump 21: Regulating valve
30: gas feeder 31: regulating valve
40: bubble generator 41: nozzle 43: rotating body
50: connector 70: return pipe 80: filter
S100: Connection step S200: Supply step
S300: bubble generation step S400: washing step
S500: recovery step
w: water g: gas k: bubble

Claims

A water tank 10 for supplying water w;
A pump 20 connected to the water tank 10 at one side and connected to the bubble generator 40 at the other side for transferring water to the bubble generator 40;
A gas supplier 30 connected to the bubble generator 40 at one side to supply a gas g and supplying the gas g at a higher pressure than the pump 20;
And a nozzle 41 connected to the mold 5 at one end and narrowed at the end is constituted so that water W and gas k are supplied from the pump 20 and the gas feeder 30, A bubble generator (40) for generating a microbubble (k) inside the water by discharging the mixed fluid through the nozzle (41); Lt; / RTI >
The nozzle 41 is connected to one side of the mold 5 to be cleaned so that the mixed fluid containing the microbubbles k is strongly ejected by the bubble generator 40, Wherein the impulse flow is generated in the form of a band to clean the movable micro bubble type impulse pipe cleaning device for cleaning the pipe in the mold.

The method according to claim 1,
The bubble (k) is formed to a particle size of 10 to 60 microns,
Wherein the frequency of the impulse is 20 to 60 Hz or less. A movable microbubble type impulse pipe cleaning apparatus for cleaning a pipe in a mold.

The method according to claim 1,
The supply pressure of the water w is 3 to 5 bar,
, And the supply pressure of the gas (g) is 3.5 to 5.5 bar. The movable microbubble type impulse pipe cleaning device for cleaning a pipe in a mold.

The method according to claim 1,
A return pipe (70) connected to one side of the water tank (10) is formed on the other side of the mold to which the nozzle (41) is connected,
And a plurality of filters (80) for filtering foreign matters (e) are formed between the return pipe (70).

An impulse piping cleaning apparatus for a mold according to claim 1,
A connecting step S100 of connecting the nozzle 41 of the bubble generator 50 to one side of the mold 5 to be cleaned;
A mixed fluid forming step (S200) of supplying a water (w) and a gas (g), mixing the supplied water (w) and the gas (g) to form a mixed fluid constituting a layer;
A bubble generating step (S300) of supplying the mixed fluid to generate bubbles (k) in the water (w) by rotation of the rotating body (43) and moving the bubbles (k) to the nozzle (41) side;
A cleaning step (S400) of cleaning the interior of the mold (5) by generating an impurity (e) and impurities remaining in the interior of the mixed fluid containing the bubble (k) when moving into the mold (5); Wherein the movable microbubble-type impulsive pipe cleaning apparatus is used for cleaning a pipe in a mold.

6. The method of claim 5,
After the cleaning step S400, the cleaned water w and the foreign matter e are moved through the recovery pipe 70 so that the foreign matter e is filtered by the filter 80 and the filtered water w Further comprising a recovery step (S500) of moving the cleaning fluid to the water tank (10) side. The cleaning method of the movable microbubble type impulse pipe cleaning apparatus for cleaning a pipe in a mold.

6. The method of claim 5,
Wherein a supply pressure and a flow rate ratio of the water (w) and the gas (g) are selectively set according to the size of the pipe (b) to be cleaned. Cleaning method used.