KR20090034105A - Open loop piping system flushing apparatus for with a different kind fluid mixture of two fluids - Google Patents

Abstract

An open loop pipe flushing apparatus using two different fluids is provided to maximize the washing effect by causing continuous contraction and expansion of gas with the variation of fluid kinetic energy. An open loop pipe flushing apparatus using two different fluids comprises a compressed gas supply valve(01) which allows or blocks the supply of working fluid, a pneumatic unit(02) removing the moisture and contaminant from the compressed gas, a first control valve(24) operated by the pressure of the supplied compressed gas, a second control valve(25) operated by the pressure of the supplied compressed gas or the washing fluid circulating in a pipe, a gas induction pipe(09) inducing the gas into the pipe, a washing fluid backflow prevention valve(16) located between the gas induction pipe and the second control valve, a connection part(07) including a pipe connection flange connected to the pipe, and a third supply pipe(12) delivering the pressure of the washing fluid to the second control valve.

Description

Open loop piping system flushing apparatus for with a different kind fluid mixture of two fluids}

The present invention relates to a heterogeneous two-fluid scrubber for cleaning an open pipe, wherein a heterogeneous compressor body is supplied and mixed in a scrubbing fluid circulating inside the piping system to clean the piping system with two fluids, and the supply pressure of the compressor body to be supplied. The present invention relates to a heterogeneous two-fluid scrubber for cleaning an open conduit that can be easily started and stopped by a pressure of the circulating cleaning fluid.

In general, even if the machine and the piping system connected to it are in a clean state before installation, foreign substances enter and remain inside the device and the system during transportation / loading / installation of these devices. In order to prevent equipment failure, operation failure, extension of service life, and reduction of maintenance cost, even if the equipment is newly installed or in use, it may cause malfunction due to premature wear and damage of the equipment and blockage of fluid passage. Cleaning work is carried out on the piping system. This cleaning operation removes foreign substances remaining in the interior by a method of cleaning using a gas medium or a liquid medium, cleaning by hand, etc. according to the characteristics and purpose of each component of each device.

In a circulating scrubbing method, a pump of the capacity necessary to form the required flow rate in this state based on the Reynolds number of 4,000 (or sometimes 3,000), which is generally turbulent, to provide an efficient scrubbing action. Although methods such as use, heating, and hitting the outer wall of the system to be cleaned have been applied, in recent years, each device has been increasing in size and precision to improve performance and reduce operation and maintenance costs. I was in trouble.

This change is the conventional method of cleaning by the conventional single-fluid circulation. Even if the cleaning fluid is circulated in turbulent flow, if a viscous cleaning fluid is used, the laminar flow bottom layer is close to the pipe wall due to the viscosity of the fluid. It is difficult to remove and distribute metallic foreign substances or similar high-density foreign substances that stay or settle on the pipe wall due to the influence of the laminar flow bottom layer, and thus require a long cleaning time and a sufficient cleaning effect. No problem occurs.

As a more efficient cleaning method for solving the above problems, a heterogeneous two-fluid washing technique has been applied in which a mixed gaseous compressed air or compressed inert gas is circulated in a liquid cleaning medium.

The cleaning technology using the gas-liquid mixed fluid is applied to remove contamination of water supply pipes and to clean processes in the precision industry and semiconductor manufacturing fields, and in Japan, it is applied to increase the water washing effect in the deposition type surface treatment process. It has been announced.

As an example of the cleaning technology using the gas-liquid mixed fluid as described above, there is a "water supply pipe cleaning device" of Korean Patent Publication No. 2004-0091533, which intermittently sends compressed air into the water supply pipe to remove contamination or rust in the pipe by the impact. The present invention relates to an apparatus for cleaning by washing. That is, the Korean Patent Laid-Open Publication No. 2004-0091533 discloses a water supply pipe cleaning device which repeatedly injects compressed air into a water supply pipe to be cleaned in a pulse shape to clean the water supply pipe. The impact of air and water is generated, which causes irregularity in the impact cycle of air and water in the water supply pipe, and the confusion of water flow in the pipe is increased to effectively remove dirt.

However, as described above, the conventional technologies are very complicated, such as a lubricating oil system and a hydraulic oil system in a ship or an industrial plant that require high precision, and have a length of several tens to hundreds of meters and a diameter of several hundred millimeters. In the plumbing system, there is a problem in that the function cannot be fulfilled. In particular, there is a problem that the cleaning fluid flows back through the gas supply line due to the pressure of the cleaning fluid during abnormal operation.

The present invention is to solve the above problems, the object is to continuously supply and mix the heterogeneous fluid of the gas phase to the main liquid of the liquid to make the cleaning fluid mixed with the gas liquid to improve the characteristics of a single cleaning fluid By reducing the viscosity of the fluid by circulating to reduce the minimum flow velocity generated turbulent flow, amplifying the fluid kinetic energy by the continuous contraction and expansion of the gas in accordance with the change in the fluid kinetic energy generated in the flow caused by the viscosity of the cleaning fluid It is to provide a heterogeneous two-fluid scrubber for cleaning an open duct to minimize the influence of the laminar bottom layer, efficiently disturb the fluid flow, and improve the characteristics of a single scrubbing fluid to maximize the scrubbing effect.

Still another object of the present invention is to adjust the pressure of the circulating cleaning fluid and the supplied driving fluid (compressed gas) to adjust the supply amount and the mixing amount of the supplied driving fluid, thereby pursuing an effective cleaning effect and the air in the pipe. It is to provide a heterogeneous two-fluid washing apparatus for cleaning an open pipe that can prevent pocket formation in advance.

Still another object of the present invention is to provide a mixed gas, comprising a primary control valve open / closed by the pressure of the driving fluid (compressed gas) supplied and a secondary control valve open / closed by the pressure of the cleaning fluid. If the flow of cleaning fluid is abnormal. It is to provide a heterogeneous two-fluid scrubber for cleaning an open tube that can be converted into a completely closed state.

Another object of the present invention is to install a mixing nozzle applying the principle of Bernoulli theorem and Venturi tube, to minimize the effect of the pressure of the cleaning fluid and to maximize the supply of the mixed gas to efficiently mix the two fluids of the liquid and gaseous phase as a cleaning fluid It is to provide a heterogeneous two-fluid scrubber for cleaning an open pipe to be used.

The present invention provides a compressor body supply side for supplying or blocking a driving fluid, a pneumatic unit connected to the compressor body supply side and removing water and contaminants in the compressor body, and connected by the pneumatic unit and the first supply line. And a primary control valve operated by the pressure of the supplied compressor body, and connected by the primary control valve and the second supply line, and operated by the pressure of the cleaning fluid circulated in the supplied compressor body or pipe. A secondary control valve, and the secondary control valve is installed to communicate with one end of the secondary control valve, and a mixing nozzle is installed at the other end to guide the gas into the pipe, and between the gas guide tube and the secondary control valve. It is installed to be connected to the cleaning fluid backflow prevention valve and the secondary control valve so that the gas induction pipe is located therein, and the drain connection flange is provided on one side. A device connection part having a pipe connection flange connected to the pipe on the other side, and the one end is connected to the device connection part and the other end is connected to the secondary control valve to transfer the pressure of the cleaning fluid to the secondary control valve. And a third driving fluid supply line.

The second supply line and the third supply line are connected to each other by a fourth supply line, and the fourth supply line is further provided with a compressor body supply valve for manual control.

In addition, the compressor body supply side and the supply unit is composed of a single unit, and is connected to the drive fluid first supply line to enable a separate coupling.

Thus, the present invention is applied to the circulating cleaning method using a liquid medium, unlike the conventional single-circulation circulating cleaning method by applying a method of mixing and circulating two different fluids, viscosity, flow rate, Effectively improving the flow pattern and the like can provide an optimal fluid cleaning environment.

In other words, the present invention provides a cleaning fluid in which gaseous heterogeneous fluids are continuously supplied and mixed with the main liquid in the liquid phase, thereby improving the characteristics of a single cleaning fluid and circulating by using a viscous cleaning fluid. It reduces the minimum flow velocity of turbulent flow by lowering the viscosity and amplifies the fluid kinetic energy by the continuous contraction and expansion of the gas according to the change of fluid kinetic energy generated in the flow. The impact can be minimized.

In addition, since the present invention continuously circulates the gas in the circulating cleaning fluid to circulate the gas, unlike the usual operating state, since the harsh liquid flow pattern is required during the cleaning, it is continuous to the flow rate of the cleaning fluid in the system so that the cleaning effect can be maximized. By providing a change, the fluid flow can be effectively disturbed to increase the kinetic energy change of the fluid, thereby rapidly and completely removing foreign substances remaining in the pipe, and improving productivity by shortening the cleaning time.

In addition, the present invention improves the phenomenon that the amount of supply gas is significantly reduced due to the pressure effect of the cleaning fluid by applying the principle of Bernoulli theorem and Venturi tube in supplying and mixing the gas of heterogeneous fluid to the main cleaning fluid. The mixing of the fluid and the gaseous supply gas is made more uniform, so that the air pocket that can be formed toward the upper part of the bent pipe or the upper part of the large diameter path can be suppressed.

1 is an exemplary view showing a configuration in the present invention, Figure 2 is an exemplary view showing an operating state according to the installation state of the present invention, Figure 3 is an exemplary view showing an installation position of the present invention, The present invention provides a compressor body supply side (01) for supplying or blocking a compressor body, a pneumatic unit (02) for removing water and contaminants in the compressor body connected and supplied to the compressor body supply side (01); The primary control valve 24 connected to the pneumatic unit 02 and the first supply pipe 21 and operated by the pressure of the supplied compressor body, the primary control valve 24 and the second control valve 24. One end of the secondary control valve 25 connected to the supply pipe 22 and operated by the pressure of the cleaning fluid circulated in the compressor body or the pipe to be supplied, and one side of the secondary control valve 25 communicates with each other. And a mixing nozzle (08) is installed at the other end to induce gas into the pipe (100). A gas induction pipe 09, a cleaning fluid backflow prevention valve 16 installed to be located between the gas induction pipe 09 and the secondary control valve part 25, and the gas induction pipe 09 are located therein. And a device connecting portion (07) having a pipe connecting flange (26) connected to the secondary control valve (25) and having a drain connection flange (10) connected to a pipe on one side thereof, One end is connected to the connecting portion (07) and the other end is connected to the secondary control valve 25 is installed to include a third supply pipe (12) for transmitting the pressure of the cleaning fluid to the secondary control valve (25) It is supposed to be.

That is, the present invention supplies and mixes gas into the cleaning fluid circulating in the piping system, prevents the fluid in the piping system from flowing back to the gas supply side, and supplies gas in a state where the flow of the fluid in the piping system is stopped. This is to stop.

In addition, the second supply pipe 22 and the third supply pipe 12 are connected to communicate with each other by a fourth supply pipe 13, the fourth supply pipe 13 to the drive fluid supply valve for manual control. (14) is further installed.

The compressor body supply valve 01 supplies / blocks the compressor body and is operated by manual operation.

The pneumatic unit (02) is connected to the rear end outlet of the compressor body supply valve (01) and the water separator 27 for removing water introduced into the supplied gas, and in a straight line with the rear end outlet of the water separator. It is composed of a filter 28 for removing the foreign matter that is included in the supplied gas is connected and installed in pairs with each other.

In addition, the compressor body supply side (01) and the pneumatic unit (02) is a unitary unit, the first supply line 21 and the coupling means 29 is coupled to enable disassembly and assembly.

The first supply line 21 supplies the compressor body via the pneumatic unit 02 to the primary control valve 24, one end of which is connected to the coupling means, and the other end of the primary control valve 24. A main supply line 19 connected to one side of the main supply line 19 and a branch line from the main supply line 19 and connected to the other side of the primary control valve 24 to open and operate the primary control valve 24 ( 11).

The primary control valve 24 is to shut off the gas supply path when not in use and when there is no pressure or low pressure of the gas, and is connected to the first supply pipe 21 to control the flow of the compressor body. It is composed of a primary gas supply control valve (03) for blocking, and a primary drive cylinder (05) connected to the first supply pipe (21) to open the primary gas supply control valve (03).

That is, the primary gas supply control valve 03 communicates with the pneumatic unit 02 by the main supply pipe 19 of the first supply pipe, and the primary drive cylinder 05 drives the first supply pipe. The supply line 11 is connected to the main supply line 19 so that the pressure of the compressor body is transmitted.

The primary drive cylinder (05) is connected to a drive fluid supply line (11) for introducing the pressure of the purified gas through the pneumatic unit (02), and consists of a cylinder and a piston to form pressure by the normal gas supply When the piston inside the cylinder is thrust due to the pressure of the gas, it is pushed in the horizontal direction, and when the supply of gas stops or becomes abnormal, it falls to the original position by the return spring inside the cylinder. It is in the form of a return.

The primary gas supply control valve 03 is assembled in a straight line with the primary control valve driving cylinder and forms a pair such as a reverse displacement inside to allow the opening and closing operation to be interlocked by the action of the piston of the primary driving cylinder. When the piston of the primary drive cylinder is returned to the gas supply by stopping or reducing the pressure, the disk is brought into close contact with the seat by a spring-pushing force.

The secondary control valve 25 is to prevent unnecessary gas consumption by blocking the gas supply when not using and when there is no flow of the cleaning fluid or the flow is too low to form a low pressure, the second supply pipe ( 22 is connected to the secondary gas supply control valve (04) to block the flow of the compressor body, and is installed to be connected to the secondary gas supply control valve (04) to open the secondary gas supply control valve (04) It consists of a secondary drive cylinder (06).

At this time, the secondary drive cylinder 06 is operated by the pressure of the cleaning fluid circulating in the piping system, it is operated by the pressure of the compressor body supplied by manual operation.

That is, when the secondary drive cylinder 06 introduces the gas passing through the primary control valve by the operation of the primary drive cylinder and supplies the gas to the pipe to be cleaned, the flow of the cleaning fluid in the pipe is stopped or abnormal. In order to prevent unnecessary compressor body from penetrating into the system and being lost when the pressure is below the reference pressure, the cylinder is composed of a cylinder and a piston, and the driving pressure is supplied from the cleaning fluid in the pipe to be cleaned to the fourth supply line (13). When the pressure is formed by the normal flow of cleaning fluid, the piston inside the cylinder is thrust due to the cleaning fluid pressure in the piping system and is pushed in the horizontal direction, and the flow of the cleaning fluid is stopped or the pressure is abnormal. When the pressure falls below the required reference pressure, the cylinder returns to its original position by the return spring inside the cylinder. It consists of the formula:

The secondary gas supply control valve (04) is assembled in a straight line with the secondary drive cylinder (06) to form a pair, and the inside of the internal drive to interlock the opening and closing action by the action of the piston of the secondary drive cylinder, such as reverse displacement When the piston of the secondary drive cylinder is returned because the pressure of the cleaning fluid stops or the circulation of the cleaning fluid stops or the abnormal phenomenon occurs, the disk is brought into close contact with the seat by the spring pushing force.

The gas induction pipe 09 is for inducing gas into the system to be cleaned, and is installed such that the end is in communication with the secondary control valve 25, and the other end is installed in the piping system.

In addition, a mixing nozzle 08 is installed at the end of the gas induction pipe 09 located in the piping system, and the gas induction pipe 09 has a gas induction pipe according to the diameter of the pipe. Since the length of 09) must be different, it is coupled to the secondary control edge 25 so that replacement is possible for position adjustment of the mixing nozzle 08.

In addition, a gas outlet 20 is formed at the end of the gas induction pipe 09, that is, the end of the gas induction pipe 09 in which the mixing nozzle 08 is installed, and the gas outlet 20 is formed of a fluid. The gas is to be discharged horizontally and horizontally. That is, the discharge direction of the gas discharged through the gas discharge port 20 and the flow direction of the cleaning fluid are made to match.

The mixing nozzle 08 is for mixing the gas supplied through the gas induction pipe 09 with the cleaning fluid. As shown in FIGS. 1 and 2, the gas outlet 20 is positioned inside the gas nozzle 20. It is installed on the outside of the discharge port 20, and has a reduction tube shape having a wide front end and a narrow area at the rear end based on the flow direction of the cleaning fluid. By increasing the flow rate, the fluid pressure received at the end of the gas discharge port is reduced to improve the phenomenon that the discharge gas is reduced due to the pressure resistance of the cleaning fluid.

The cleaning fluid backflow preventing valve 16 controls the gas supplied to the primary control valve and the secondary control valve to prevent the backflow of the cleaning fluid. In case of occurrence, the cleaning fluid in the piping system flows back to the open primary and secondary control valves and may be introduced into the gas supply line, which may cause contamination. When the pressure at the inlet side becomes lower than the pressure at the outlet side, the disk is brought into close contact with the seat by a spring pushing force.

The device connection portion 07 is for coupling the present invention to the piping system to be cleaned, provided with a hollow so that the gas induction pipe 09 is located inside, the pipe connection flange 26 for connecting with the pipe and use is complete And a drain connection flange 10 connected to drain the cleaning oil to a disassembleable state for dismantling from the system to be cleaned. The gas induction pipe 09 is connected to the pipe 100 so as to be orthogonal to the pipe 100. Connection is installed. In addition, one side of the device connecting portion 07 is installed so that the third supply pipe 12 communicates.

The third supply line 12 is to transfer the pressure of the cleaning fluid to the secondary drive cylinder 06, one end is connected to the device connection portion 07 and the other end is connected to the secondary drive cylinder (06) In the middle, a driving fluid backflow preventing valve 15 is installed to prevent the backflow of the cleaning fluid from the secondary control valve section 25 to the device connecting portion 07.

At this time, the driving fluid backflow prevention side 15 is not provided with a perfect backflow prevention function, but is adjusted to enable microscopic leakage in the direction of the device connecting portion 07, such microleakage adjustment is the end of the operation of the present invention 3 The pressure in the supply line 12 is automatically lowered to prevent the operation of the secondary drive cylinder 06. Adjusting the non-return valve 15 to enable the micro leakage is a well-known technical means, a detailed description thereof will be omitted.

The fourth supply line 13 should drain the cleaning fluid in the cleaning piping system for reasons such as when there is no flow of the cleaning fluid to drive the secondary drive cylinder 06 and the separation of the present invention after use of the present invention. In order to be able to operate manually if the one end is connected to the second supply line 22 and the other end is connected to the third supply line 12 is connected to the secondary drive cylinder (06) In the middle, a drive fluid supply valve 14 for manual control for supplying the compressor body in the second supply pipe 22 to the secondary drive cylinder 06 is provided.

As described above, the present invention operates the secondary drive cylinder with the pressure introduced by the opening of the drive fluid supply valve 14 for manual control, so that the secondary gas supply control valve is switched to the open state, and the compressor body flows into the piping system. The pressure is formed in the piping system by the gas flowing in, and the cleaning fluid is smoothly discharged from the piping system by opening the discharge valve 17 connected to the drain connection part.

In addition, as a preferred configuration of the present invention, in order to reduce the weight of the primary and secondary drive cylinder portion is made of aluminum, and the first, second, third and fourth supply pipe portion is made of stainless steel to prevent corrosion. The discs assembled inside the primary and secondary gas supply control valves and the cleaning fluid backflow prevention valves are made of aluminum, and the springs for holding each disc in the closed position are springs of chromium plating or corrosion resistant material. Preference is given to using steel.

In addition, the connection part between each component is appropriately combined and used in the way of piping parts and welding to facilitate the disassembly and assembly in consideration of the ease and strength of disassembly and assembly when troubleshooting.

In addition, the sizes of the first and second supply pipes and the first and second control valves are appropriately selected and used depending on the flow rate of the washing fluid and the pipe diameter of the piping system to be cleaned.

In addition, the thrust of the primary drive cylinder must surpass the force applied by the spring and the gas pressure acting on the disk of the primary gas supply control valve, and maintain the control valve open state without being affected by the pressure drop during opening of the control valve. The thrust of the secondary drive cylinder must exceed the gas pressure acting on the disk of the secondary gas supply control valve and the force acting by the spring. The opening of the control valve must be maintained without receiving any pressure, so the diameters of the respective driving cylinders and pistons should be carefully considered accordingly.

In addition, since the gas induction pipe has a long length and is fixed to the main body, a problem that is difficult to detach in a narrow space occurs, so that disassembly and assembly are possible.

In addition, the mixing nozzle applies the principle of Bernoulli Theorem and Venturi tubes to minimize the gas emission reduction caused by the cleaning fluid pressure formed inside the piping system and induce a uniform mixing state. The fluids are mixed to achieve a heterogeneous two-fluid washing effect.

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

1 is a structural diagram showing a configuration of an open two-fluid cleaning device for cleaning an open pipe according to an embodiment of the present invention, Figure 2 is a piping system using a heterogeneous two-fluid cleaning device for cleaning an open pipe according to an embodiment of the present invention. It is explanatory drawing which shows the operation | movement which mixes and washes gas in the washing | cleaning fluid in inside,

As shown in FIG. 1, a heterogeneous two-fluidic cleaning device for cleaning an open pipeline according to an exemplary embodiment of the present invention is mounted on a compressor body supply part and initially supplied after the compressor body supply valve 01 for supply and shutoff operation. Pneumatic unit (02) is provided to remove the moisture and foreign matter that may be introduced with the gas to be supplied in a clean state, the supplied gas is introduced into the primary gas supply control valve (03) through the main supply pipe The gas is supplied to the primary drive cylinder (05) through the drive fluid supply line, and the primary drive cylinder (05) operates when the pressure of the supplied gas has an appropriate pressure, and the primary drive cylinder is driven by the thrust. When the disc of the primary gas supply control valve 03 which is connected and axially connected to each other is pushed open, the gas to be supplied is in the secondary gas supply control valve 04 installed at the rear end through the second supply pipe. And the pressure inside the pipe line formed by the flow of the cleaning fluid in the system to be cleaned is connected between the device connecting portion 07 and the supply gas induction pipe 09, that is, through the hollow of the device connecting portion 07 to the third supply pipe. Is driven into the drive cylinder 06 of the secondary control valve, the thrust is pushed open the disk of the secondary gas supply control valve (04) connected to the secondary drive cylinder in the axial direction and interlocked, 2 The supply gas passing through the primary gas supply control valve 04 is introduced into the gas induction pipe 09 and is discharged through the mixing nozzle 08 positioned in the internal cleaning fluid in the piping system, and mixed with the cleaning fluid in the pipeline. Heterogeneous two-fluid washing action with mixed gas is made.

Hereinafter, looking at the structure and operation of each configuration in more detail, the present invention is a device connection portion 07 and the gas induction pipe 09 is introduced into the pipe at a right angle inside the pipe as shown in Figure 2, the mixing nozzle (08) selects a point close to the discharge side of the circulating pump for circulating the cleaning fluid to prepare and assemble in advance the same nozzle for assembly as the pipe connection flange of the device connection portion 07 at the lower end of the pipe, and the mixing nozzle (08) The injection position of is installed to be located 2/3 ~ 1/2 points from the bottom to the top of the inner surface in the vertical direction of the pipe to be cleaned.

At this time, the position of the mixing nozzle is based on the fact that the gas having a small specific gravity is directed upward and the flow velocity in the tube is maximum at the center, and the venturi tube surrounding the outside of the mixing nozzle 08 is kept horizontal.

In addition, the compressed air generally used in the production site is used in less than 0.7 megapascals (Mpa), and the fluid pressure in the low-pressure pipe is generally 0.4 ~ 0.6 megapascals, so the present invention is such a condition It is an example to be used in accordance with the compressed air supply pressure that can be easily obtained in consideration of this, and the specific action will be described based on this pressure.

When the present invention is assembled at the place of use, the pressure of the cleaning fluid circulating in the piping system by opening and closing the circulation pump or the system pump discharge valve in response to the pressure of the compressed air supplied to suit the environment for heterogeneous two-fluid washing Based on the gas pressure supplied, it is adjusted to a level of 1/3 to 1/2, which means that the gas increases in volume in inverse proportion to the pressure according to the law of the compressor body supplied inside the piping system, and the circulation pump or system pump The heat generated by the hydraulic loss caused by the closing of the discharge valve is to increase the volume in proportion to the temperature according to Charles' law.The gas supply is increased as the pressure difference between the supply gas pressure and the piping to be cleaned is increased. Because you can. At this time, if the pressure of the cleaning fluid is excessively reduced, the circulation flow rate of the cleaning fluid decreases, and the pressure difference between the pressure of the cleaning fluid and the supply gas becomes large, and the amount of released gas becomes relatively excessive. Air pockets may be formed on the upper side or the upper part of the bent pipe so that the pressure of the circulating cleaning fluid should be properly adjusted.

When the pressure adjustment is completed and the preparation is completed as described above, the opening and closing knob of the compressor body supply valve 01 is turned counterclockwise to supply the compressor body. As the compressed gas is removed from the pneumatic unit 02, foreign substances such as moisture and dust are removed, and the pressure is increased while the clean gas is supplied into the gas supply control valve 03 of the primary control valve having a low pressure. The primary gas supply control valve (03) is introduced into the primary drive cylinder (05) via the supply line and generates a thrust on the piston inside the primary drive cylinder at this pressure to connect the piston to the piston in a horizontal direction. When pushed from the left to the right, the supply gas reaches the inlet of the secondary gas supply control valve 04 through the second supply line, and is in equilibrium with the gas pressure of the supply unit.

Since the main cleaning target system of the present invention is an open type pipeline, a pressure is generated when the cleaning fluid is circulated, and the pressure generated at this time is transmitted to the secondary drive cylinder 06 through the third supply pipe, so that the secondary drive cylinder 06 If thrust is generated to surpass the force that presses the disk of the secondary gas supply control valve 04 at the pressure of the gas, the disk of the secondary gas supply control valve 04 is the piston thrust of the secondary drive cylinder 06. The disc is then pushed from left to right and opened to open.

In the above operation, even when the secondary gas supply control valve 04 is operated to switch to the open state, when the pressure of the supplied gas does not exceed the pressure in the system to be cleaned, that is, the pressure in the system to be cleaned is relatively high. The non-return valve 16 is not opened so that the cleaning fluid in the piping system cannot flow back into the secondary control valve.

In addition, when the supplied gas exceeds the pressure in the system to be cleaned, the cleaning fluid backflow prevention valve 16 is pushed upward to form an open path, and the supplied gas is mixed via the gas induction pipe 09. ) Is atomized by the pressure of the gas to be supplied and the flow rate of the cleaning fluid to be distributed in the cleaning fluid.

In this operation, the amount of gas passing through the mixing nozzle 08 is determined by the pressure of the cleaning fluid and the supply gas in the piping system, thereby minimizing the influence of the cleaning fluid pressure in the system to maximize the amount of gas supply and to efficiently mix Bernoulli. And by applying the principle of the venturi tube to form and install a mixing nozzle to increase the flow rate at the end.

In addition, when the gas supply is stopped during operation or the pressure is lowered to maintain the proper operating pressure, the piston of the primary drive cylinder (05) returns to its original position while the primary gas supply control valve (03) interlocks to return to the primary position. When the circulation of the cleaning fluid in the pipe to be cleaned is stopped and the pressure is reduced or the circulation flow is extremely reduced to maintain the proper operating pressure, the piston of the secondary drive cylinder (06) is returned to its original position and the secondary gas is supplied. The control valve 04 is interlocked so as to return to a completely closed state.

In this operation, the gas supply is automatically cut off or supplied to prevent abnormality of the cleaning fluid in the cleaning piping system to flow back to the gas supply piping system of the apparatus, and the cleaning fluid backflow prevention valve 16 provides a positive backflow prevention effect. Equipped.

In addition, when it is necessary to discharge the cleaning fluid remaining in the pipeline when the use of the present invention is completed and restored, since the circulation of the cleaning fluid is stopped and there is no pressure in the piping system, when the drive fluid supply valve 14 for manual control is opened, It is possible to manually operate the secondary drive cylinder 06 via the supply pipe 13. At this time, in order to prevent the pressure of the supplied gas from flowing out from the fourth supply line via the third supply line to the inside of the piping system and falling below the pressure required for driving the secondary drive cylinder, In the middle, the reverse flow prevention valve 15, which is a reverse valve, is placed to block the outflow so as to prevent an operation failure of the secondary drive cylinder 06 due to underpressure.

In addition, the pressure of the gas supplied by opening the compressor body supply valve 14 for manual control is not released by the backflow prevention valve 15 when the manual control drive fluid supply valve 14 is closed to stop the operation. In order to solve this phenomenon, the non-return valve 15 is leaked in a small amount during the non-return operation so that the pressure is automatically lowered when the operation is terminated.

When the primary and secondary control valves are opened by the above operation, gas is introduced into the piping system, whereby a certain pressure is formed, and thus the gas can be returned to the cleaning fluid storage tank along the discharge pipe connected to the drain connection part 10. . At this time, the stop side normally installed in the drain connection portion 10 maintains a closed state.

As described above, the present invention operates with the pressure of the supply gas and the pressure of the rinsing fluid circulated with the primary and secondary control valves, so that each pressure is efficiently supplied with the compressor body as described above. Since the pressure of the cleaning fluid is automatically controlled to prevent backflow into the gas supply line and the gas supply system, the user can improve the function of the cleaning fluid while being responsible for the separation operation after the assembly and use of the present invention.

In addition, the present invention generates a shock wave by continuously disturbing the flow of the cleaning fluid in the pipe to be cleaned, the mixed gas due to this action to amplify the impact by repeated contraction and expansion to activate the fluid kinetic energy, If the cleaning fluid is used, the laminar flow bottom layer is minimized in the flow of the viscous fluid, and the foreign matter remaining or settling in the piping system to be cleaned is separated or separated efficiently so that it is easily discharged to the outside of the system.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is an exemplary view showing a configuration in the present invention

Figure 2 is an exemplary view showing an operating state according to the installation state of the present invention

Figure 3 is an exemplary view showing the installation position of the present invention

* Explanation of symbols for the main parts of the drawings

(01): compressor body supply valve (02): pneumatic unit

(03) primary gas supply control valve (04) secondary gas supply control valve

(05): primary drive cylinder (06): secondary drive cylinder

(07) Device connection part 08 Mixing nozzle

(09): gas induction pipe (10): drain connection flange

(11): driving fluid supply line (12): third supply line

(13): fourth supply line (14): drive fluid supply valve for manual control

(15): driving fluid check valve (16): cleaning fluid check valve

(17): discharge valve (18): pressure gauge

(19): Main supply line (20): Gas outlet

21: first supply line 22: second supply line

(23): disk (24): primary control edge

(25): secondary control valve part 26: piping connection flange

(27): water separator (28): filter

(29): coupling means (100): piping

Claims (10)

A compressor fluid supply valve for supplying or blocking a driving fluid; A pneumatic unit connected to the compressor body supply side to remove moisture and contaminants in the compressor body; A primary control valve connected to the pneumatic unit and a first supply line and operated by a pressure of a compressor body to be supplied; A secondary control valve connected to the primary control valve and the second supply pipe and operated by a pressure of a cleaning fluid circulated in the compressor body or pipe to be supplied; A gas induction pipe installed at one end of the secondary control valve and in communication with one end thereof, and a mixing nozzle installed at the other end thereof to guide gas into the pipe; A cleaning fluid backflow prevention valve installed to be located between the gas induction pipe and the secondary control valve; A device connection part provided with a secondary connection valve and a drain connection flange installed at one side thereof so that the gas induction pipe is located therein, and a pipe connection flange connected to the pipe at another side thereof; Heterogeneous for cleaning the open-type pipe line, characterized in that it comprises a third supply line is installed so that the one end is in communication with the connecting portion and the other end is connected to the secondary control valve to transfer the pressure of the cleaning fluid to the secondary control valve. 2 Fluid scrubbers. The method of claim 1; The second supply line and the third supply line are connected to communicate with each other by the fourth supply line, the fourth supply line is a heterogeneous 2 for cleaning the open-type pipe line, characterized in that the compressor supply side for the manual control is further installed. Fluid scrubbers. The method of claim 1; The pneumatic unit is connected to the rear end outlet of the compressor body supply side and the water separator to remove the water introduced into the supplied gas, the water separator is connected to the rear end in a straight line is installed and supplied as a pair Heterogeneous two-fluid scrubber for cleaning the open line, characterized in that it comprises a filter for removing foreign matter contained in the gas. The method of claim 1 or 3; The compressor body supply side and the supply unit is composed of one unit, heterogeneous two-fluid washing apparatus for cleaning the open-type line, characterized in that connected to the first supply line by a coupling means. The method of claim 1; The primary control valve is a primary gas supply control valve connected to the first supply line to block the flow of the compressor body, and the primary drive cylinder connected to the first supply pipe to open the primary gas supply control valve Done, The secondary control valve is connected to the second supply line to the secondary gas supply control valve to block the flow of the compressor body, and is installed to be connected to the secondary gas supply control valve 2 to open the secondary gas supply control valve Heterogeneous two-fluid scrubber for cleaning the open line, characterized in that the vehicle drive cylinder. The method of claim 1; At the end of the gas induction pipe gas is discharged horizontally with the flow direction of the fluid, a gas discharge port is formed so that the discharge direction of the discharged gas and the flow direction of the cleaning fluid is formed, mixed to be located outside the gas discharge port Heterogeneous two-fluid scrubber for cleaning an open pipe, characterized in that a nozzle is provided. The method of claim 1 or 6; The mixing nozzle is a heterogeneous two-fluid cleaning device for cleaning the open-type pipe line, characterized in that installed in the vertical direction of the pipe to be cleaned at a position from 2/3 to 1/2 point from the bottom to the top. The method of claim 7; The mixed nozzle has a narrow tube shape having a front end and a rear end having a narrow area based on the flow direction of the cleaning fluid, and the outside of the mixed nozzle is streamlined. The method of claim 1; The second supply line is a heterogeneous two-fluid cleaning device for cleaning the open line, characterized in that the non-return valve for preventing the back flow of the cleaning fluid from the secondary control valve to the device connecting portion. The method of claim 1; The first supply line is connected to the coupling means, one end of which is connected to the main supply line and the other end is connected to one side of the primary control valve, and branched from the main supply line and connected to the other side of the primary control valve primary control Heterogeneous two-fluid scrubber for cleaning the open line, characterized in that it comprises a drive supply line for operating the edge.

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