KR102368699B1 - Rust Prevention Inhibitor Supply Unit For Preventing Rust Of Piping When Testing Piping Pressure Of Ship Air System In Shipyards - Google Patents

Abstract

Disclosed is a rust inhibitor supply unit for preventing rust of a pipe when testing pipe pressure of an air system of a ship in a shipyard. According to an embodiment of the present invention, the rust inhibitor supply unit for preventing rust of a pipe comprises a rust prevention liquid supply tank, a rust prevention liquid supply pump, a distribution unit, and an air ventilation unit.

Description

Rust Prevention Inhibitor Supply Unit For Preventing Rust Of Piping When Testing Piping Pressure Of Ship Air System In Shipyards

The present invention relates to a rust preventive agent supply unit for preventing rust of a pipe, and more particularly, to a rust preventive agent supply unit for preventing rust of a pipe during a pipe pressure test of a ship air system in a shipyard.

In general, ships include a tank for accommodating liquid or gaseous natural resources such as oil and gas, a tank for accommodating oil such as lubricating oil, a bilge tank, a tank for storing fresh water or seawater, for diving or flotation A plurality of tanks are provided for storage of a fluid, such as a tank into which air is forcibly flown in and out, and the plurality of tanks are connected through a pipe.

In addition, connecting pipes for inflow and outflow of fluid are bolted to the plurality of tanks through welding or flanges.

In order to check the leakage phenomenon of the fluid accommodated in the tank when the ship is being built, a pressure test for the sealed state of the tank is performed.

That is, after sealing the tank, the sealing (airtightness or watertightness) state of the tank may be tested using air pressure or water pressure.

For example, the sealed state of the tank may be tested by introducing air into the tank, setting the pressure to a certain level, and checking the pressure change inside the tank.

Since the test is performed using water, the test medium, during the pressure test of the pipe, a procedure to remove the test medium, water, is required after the test. Rust and rust occur.

In order to remove the generated rust and rust, additional air blowing or, in severe cases, acid washing occurs. However, even if additional work is performed, 100% of rust and rust cannot be removed. (See Fig. 1)

Due to the rust and rust generated when the medium is used as water during the hydraulic test, the shipowner and the classification society also presented a serious quality problem. We have come to the conclusion that rust and rust generation cannot be prevented by using water as the test medium for the pipe pressure test method.

Accordingly, there is a need for a technique capable of solving the above-mentioned problems according to the prior art.

Korean Patent Publication No. 10-2013658 (Registration Date: August 19, 2019)

An object of the present invention is to solve the problem of rust and rust in the pipe, which was a chronic quality problem, while using the medium of the pipe hydraulic test as a repellent, thereby preventing delay of air and key events due to rework. In this way, it is possible to comply with the delivery date and to build a luxury vessel that can guarantee the quality of piping, satisfy the quality requirements of ship owners and gain an edge in the competition for future orders. It is to provide a rust preventive agent supply unit for rust prevention of pipes that can grow.

In order to achieve this object, the rust preventive agent supply unit for preventing rust of a pipe during a pipe pressure test of a ship air system in a shipyard according to an aspect of the present invention has a storage space that can accommodate a rust preventive liquid therein, and a rust preventive liquid therein A rust preventive solution supply tank with a lightweight plastic structure of less than 1 ton in gross weight; a rust preventive solution supply pump that operates by supplying compressed air to deliver the rust preventive liquid stored in the rust preventive liquid supply tank to the manifold pressure vessel; It has a pressure vessel structure for accommodating the rust preventive liquid delivered from the rust preventive liquid supply pump therein, and a manifold pressure vessel equipped with a pressure gauge and an open/close connection nozzle communicating with each system on one side thereof, and a manifold Distribution board part (distribution board part) including a pressure boosting pump for increasing the pressure inside the fold pressure vessel; and an air venting unit that is formed in the hydraulic test target pipe, is opened when the rust preventive solution is injected, to discharge internal air to the outside, and is opened when the rust preventive solution is discharged to inject pressure air.

In an embodiment of the present invention, the rust preventive solution supply tank has a hollow box structure formed to have a predetermined volume capable of accommodating the rust preventive liquid therein, the rust preventive liquid injection hole is formed on the upper surface, and the side surface lower part Anti-rust solution receiving portion formed with the on-off valve in the rust-preventing solution outlet; a lower surface frame having a structure corresponding to the lower surface of the rust preventive liquid receiving part, mounted on the lower surface of the rust preventive liquid receiving part, and protruding by a predetermined length to one side adjacent to the rust preventive liquid outlet, the lower surface frame having a rust preventive liquid inducing curved surface structure; a side frame mounted to be spaced apart from each other along the upper edge of the lower surface frame and formed to extend upwardly in a structure that surrounds the side surface of the rust preventive solution receiving part; and an upper frame of a frame structure that connects the upper end of the side frame in an integrated structure and is bound to a traction wire of an external crane to be handled.

In one embodiment of the present invention, the anti-rust solution supply tank is mounted on the lower side of the side surface of the anti-rust solution receiving part, and the anti-rust solution delivery port of a structure that is coupled with the anti-rust solution outlet of another anti-rust solution supply tank and communicates. ; a coupling part mounted on the side frame and having a structure detachable from the side frame of another rust-preventing liquid supply tank; and a wheel part equipped with a brake that is locked or opened by an operator's handling on the lower surface frame.

In an embodiment of the present invention, the rust-preventive solution receiving unit, the rust-preventing solution receiving unit is formed in a hollow cylindrical structure inside the water receiving unit formed with through holes spaced apart from each other along an outer circumferential surface; an opening/closing plate for opening and closing the through-hole by changing the sliding position along the inner circumferential surface of the water receiving part; a rust-preventing undiluted solution accommodating part formed by an outer circumferential surface of one side of the water accommodating part and an inner surface of the rust-preventing solution accommodating part, and accommodating the rust-preventing undiluted solution therein; a microorganism propagation inhibitor receiving unit formed by the other outer circumferential surface of the water receiving unit and an inner surface of the rust preventing liquid receiving unit, and accommodating a microorganism propagation inhibitor therein; a rotating shaft rotatably mounted to the central portion of the water receiving unit and extending in the vertical direction; and a plurality of stirring blades spaced apart from the outer peripheral surface of the rotation shaft by a predetermined length and by a predetermined angle.

In this case, the rust-preventive solution receiving unit, is formed on the upper portion of the water receiving unit, a sampling outlet capable of sampling the stirred anti-rust solution; may be configured to further include.

In an embodiment of the present invention, the rust prevention liquid supply pump rotates by supplying compressed air from the outside to perform a pumping operation, a maximum operating pressure of 5 to 8 bar, and an air diaphragm having a capacity of 4,500 to 5,500 l/min. It may be a pump.

In an embodiment of the present invention, the manifold pressure vessel of the distribution board part has a pressure vessel structure that can withstand an internal pressure of up to 60 bar, and one head of the manifold pressure vessel A rust preventive liquid receiving nozzle for receiving the rust preventive liquid delivered from the rust preventive liquid supply pump is mounted on the other side of the manifold pressure vessel, and a pressure receiving nozzle for receiving the pressure from the booster pump is mounted on the other head of the manifold pressure vessel. An emergency discharge nozzle with a valve capable of withstanding pressures of up to 100 bar can be mounted on the upper surface of the shell.

In one embodiment of the present invention, a plurality of opening and closing connection nozzles are each independently mounted on one side of the manifold pressure vessel, and each of the opening and closing connection nozzles has a generator starting system, a main engine starting system, a control air system, and The service air system may be configured to communicate independently of each other.

The present invention can also provide a method of operating the rust preventive agent supply unit for preventing rust of the pipe, the method of operating the rust preventive agent supply unit for rust prevention of the pipe according to an aspect of the present invention, the rust preventive solution in the supply tank, A rust prevention solution preparation step of containing water and a microbial propagation inhibitor in a predetermined content ratio; a manifold connection step of connecting the system to be tested for hydraulic pressure to the opening/closing connection nozzle of the manifold pressure vessel; A rust preventive liquid injection step of opening the air venting part of the hydraulic test target pipe, opening the connected open/closing connection nozzle, and then operating the rust preventive liquid supply pump and the pressure booster pump; a rust prevention solution receiving nozzle locking step of stopping the operation of the rust preventing solution supply pump and locking the rust preventing solution receiving nozzle when a predetermined amount of the rust preventive solution is supplied from the rust preventive solution supply tank into the manifold pressure vessel; Locks the air venting part of the hydraulic test target pipe, monitors the pressure gauge mounted on the open/close connection nozzle, and locks the open/close connection nozzle when the pressure supplied to the system subject to the hydraulic test falls within the standard range a pressure maintenance step of starting a pressure test after processing and stopping the operation of the booster pump; And when the pressure test is completed, the rust preventive solution receiving nozzle and the open/close connection nozzle are opened, the air venting part of the hydraulic test target pipe is opened, and compressed air is injected into the air venting part to manage the rust preventive solution injected inside the hydraulic test target pipe. It may be configured to include a; rust prevention liquid discharge step to flow to the rust prevention liquid supply tank through the fold pressure vessel.

As described above, according to the rust preventive agent supply unit for rust prevention of piping of the present invention, by providing a rust preventive liquid supply tank of a specific structure, a rust preventive liquid supply pump, a manifold pressure vessel, a booster pump, a distribution unit and an air venting unit, the shipyard We can provide a rust preventive supply unit for pipe rust prevention during the pipe pressure test of the ship's air system, so the problem of rust and rust in the pipe, which was a chronic quality problem, is solved by using the medium of the pipe water pressure test as a preservative, and rework It is possible to comply with the delivery date by preventing delays in shipping and key events due to this, and to build a luxury ship that can guarantee the quality of the piping, thereby satisfying the quality requirements of ship owners and competing for orders in the future. It can gain an edge, and economically and industrially, the shipbuilding industry, a national brand, can continue to grow.

In addition, according to the rust preventive supply unit for preventing rust of the present invention, by providing a rust preventive liquid supply tank comprising a rust preventive liquid receiving part, a lower surface frame, a side frame, an upper frame, a rust preventive solution delivery port, a binding part and a wheel part of a specific structure , by handling the lightweight rust preventive liquid supply tank, preparation for hydraulic test and dismantling after hydraulic test can be handled within a short time, maximizing work efficiency, and multiple rust preventive liquid supply tanks can be easily connected A suitable rust preventive solution supply tank can be configured according to the capacity of the rust preventive solution, and as a result, it is possible to provide a rust preventive agent supply unit that can maximize the efficiency of dismantling work after hydraulic test preparation and hydraulic test.

In addition, according to the rust preventive agent supply unit for preventing rust of the present invention, by having a rust preventive solution accommodating part comprising a through hole having a specific structure, a water accommodating part, an opening and shutting plate, an antirust stock solution accommodating part, a microorganism propagation inhibitor accommodating part, a rotating shaft and a stirring blade, , it is possible to easily and accurately match the content ratio of the rust preventive solution required for the hydraulic test, so that the hydraulic test can be performed using a good quality rust preventive solution, and consequently, a stable hydraulic test can be guaranteed.

In addition, according to the rust preventive supply unit for preventing rust of the present invention, by using a rust preventive liquid supply pump that rotates by supplying compressed air from the outside to perform a pumping operation, moisture may contact the rust preventive liquid supply pump exposed to the external environment. It is possible to fundamentally block possible electric shock accidents, and it is possible to provide a rust preventive supply unit for rust prevention including a safe configuration from electric accidents.

In addition, according to the rust preventive supply unit for rust prevention of the present invention, by providing a manifold pressure vessel including a rust preventive solution receiving nozzle of a specific structure, a pressure receiving nozzle, an emergency discharge nozzle and a plurality of open/close connection nozzles, a plurality of systems can be installed respectively The hydraulic test can be independently performed, and after performing the hydraulic test for each system, the injected rust preventive solution is discharged for each system, so that the rust preventive fluid can be managed easily and stably, maximizing the hydraulic test work efficiency. A rust preventive agent supply unit for rust prevention can be provided.

In addition, according to the method of operating the rust preventive agent supply unit for rust prevention of the present invention, the rust preventive solution preparation step, the manifold connection step, the rust preventive solution injection step, the rust preventive solution receiving nozzle lock step, the pressure maintenance step and the rust preventive solution discharge step for performing a specific process By providing a hydraulic pressure test for a number of systems independently, easily and stably Therefore, it is possible to provide a method of operating a rust inhibitor supply unit for rust prevention that can maximize the hydraulic test work efficiency.

1 is a photograph showing rust generated inside a pipe after performing a hydraulic test according to the prior art, a picture showing rust generated inside the pipe, and a picture showing pigging after performing a foreign material removal method (pigging method) inside the pipe.
2 is a block diagram showing a rust preventive supply unit for rust prevention according to an embodiment of the present invention.
3 is a partially enlarged view showing a nozzle mounted on the flange of the rust preventive supply unit for rust prevention according to an embodiment of the present invention.
4 is a side view showing a part of the manifold pressure vessel and the opening/closing connection nozzle of the rust preventive agent supply unit for rust prevention according to an embodiment of the present invention shown in FIG. 2 .
5 is a plan view and a front view showing a rust preventive solution supply tank of the rust preventive agent supply unit for preventing rust according to an embodiment of the present invention.
6 is a plan view and a front view showing a rust preventive solution supply tank of a rust preventive agent supply unit for preventing rust according to another embodiment of the present invention.
7 is a photograph showing a state in which a sample rust prevention solution obtained through a sampling outlet of a rust prevention solution supply tank according to another embodiment of the present invention is verified using a test reagent.
8 is a schematic plan view showing each system connected to the opening/closing connection nozzle of the manifold pressure vessel of the rust preventive supply unit for rust prevention according to an embodiment of the present invention.
9 is a flowchart illustrating a method of operating a rust preventive agent supply unit for rust prevention according to an embodiment of the present invention.
10 is a schematic plan view showing a state in which a hydraulic test is performed using the rust preventive agent supply unit for rust prevention according to an embodiment of the present invention.
11 is a schematic plan view showing a state of discharging a rust preventive solution after performing a hydraulic test using the rust preventive agent supply unit for rust prevention according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Throughout this specification, when a member is said to be located "on" another member, this includes not only a case in which a member is in contact with another member but also a case in which another member exists between the two members. Throughout this specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

2 is a block diagram showing a rust preventive agent supply unit for preventing rust according to an embodiment of the present invention.

Referring to Figure 2, the rust preventive agent supply unit 100 for preventing rust of the pipe according to the present embodiment, a rust preventive liquid supply tank 110 of a specific structure, a rust preventive liquid supply pump 120, a manifold pressure vessel 140, By having the booster pump 150, the distribution unit 130, and the air venting unit 160, it is possible to provide a rust preventive agent supply unit for preventing rust of the pipe during the pipe pressure test of the ship air system in the shipyard, which was a chronic quality problem. By solving the problem of rust and rust occurrence of pipelines by using the medium of the pipeline hydraulic test as a repellent, it is possible to comply with the delivery date of the ship and to improve the quality of the pipeline by preventing delays in construction and key events due to rework. By building a high-quality vessel that can be guaranteed, it can satisfy the quality requirements of shipowners, gain an edge in the competition for future orders, and enable the national brand shipbuilding industry to continue to grow economically and industrially.

Hereinafter, each configuration constituting the rust preventive agent supply unit 100 according to the present embodiment will be described in detail with reference to the drawings.

3 is a partially enlarged view showing a nozzle mounted on the flange of the rust preventive supply unit for rust prevention according to an embodiment of the present invention, FIG. 4 is for rust prevention according to an embodiment of the present invention shown in FIG. A side view showing a part of the manifold pressure vessel and the opening and closing connection nozzle of the rust preventive supply unit is shown, and FIG. 5 is a plan view and a front view showing the rust preventive liquid supply tank of the rust preventive supply unit for rust prevention according to an embodiment of the present invention. there is.

Referring to these drawings together with FIG. 2, the rust preventive solution supply tank 110 of the rust preventive agent supply unit 100 for preventing rust of the pipe according to the present embodiment has a storage space that can accommodate the rust preventive solution therein, It is preferable to have a lightweight plastic structure with a gross weight of less than 1 ton in which the rust-preventing liquid is fully accommodated.

The rust preventive liquid supply pump 120 may be configured to operate by supplying compressed air to deliver the rust preventive liquid stored in the rust preventive liquid supply tank 110 to the manifold pressure vessel 140 .

The distribution board part 130 is configured to include a manifold pressure vessel 140 and a booster pump 150 . At this time, the manifold pressure vessel 140 has a pressure vessel structure for accommodating the rust preventive liquid delivered from the rust preventive liquid supply pump 120 therein, and an open/close connection nozzle 144 that communicates with each system on one side is a pressure gauge. It may be a mounted configuration with 145 . In addition, the boosting pump 150 serves to increase the pressure inside the manifold pressure vessel 140 .

As shown in FIGS. 2 and 3, the air venting part 160 formed in the hydraulic test target pipe is mounted on the lower part of the flange that seals one end of the hydraulic test target pipe, and drains smoothly when draining. It is preferable to be disposed at the bottom so that it can be made. In addition, the size of the nozzle of the air venting unit 160 may be adopted in various sizes according to the intention of the designer, and it is preferable to adopt a size for easy air venting, compressed air injection and drainage.

On the other hand, as shown in FIG. 5 , the rust preventive solution supply tank 110 according to the present embodiment has a specific structure of the rust preventive solution accommodating part 111 , the lower surface frame 112 , the side frame 113 and the upper frame. It may be a configuration including (114).

The rust preventive liquid accommodating part 111 of the rust preventive liquid supply tank 110 is a hollow box structure formed to have a predetermined volume capable of accommodating the rust preventive liquid therein. , a rust preventive solution outlet 116 at the lower side of the side surface may be formed together with the on/off valve 117 .

The lower surface frame 112 is configured to be mounted on the lower surface of the rust preventive liquid accommodating part 111 in a structure corresponding to the lower surface of the rust preventive liquid accommodating part 111 , and is adjacent to the rust preventive liquid outlet 116 and is located on one side. The rust-preventive liquid inducing curved surface structure 118 may be formed by protruding by a predetermined length.

The side frame 113 is configured to be spaced apart from each other by a predetermined interval along the upper edge of the lower surface frame 112 , and may be formed to extend upwardly in a structure surrounding the side surface of the rust preventive liquid accommodating part 111 .

The upper frame 114 may have a frame structure that connects the upper end of the side frame 113 in an integrated structure and is bound to a traction wire of an external crane to be handled.

6 is a plan view and a front view showing a rust preventive liquid supply tank of the rust preventive agent supply unit according to another embodiment of the present invention, FIG. 7 is a sampling of the rust preventive liquid supply tank according to another embodiment of the present invention A photograph showing the state of verifying the sample rust-preventive solution obtained through the extraction port using a test reagent is shown.

Referring to FIG. 6 , the rust preventive liquid supply tank 110 according to the present embodiment may be configured to further include a rust preventive liquid delivery port 119 having a specific structure, a binding part 113a and a wheel part 112a. .

The rust preventive liquid delivery port 119 of the rust preventive liquid supply tank 110 is a configuration mounted on the lower side of the side surface of the rust preventive liquid receiving part 111, and the rust preventive liquid discharge port 116 of another rust preventive liquid supply tank 110. It may be a structure that is bound to and communicates with.

The binding portion 113a is a configuration mounted on the side frame 113 and may have a structure detachable from the side frame 113 of another rust prevention liquid supply tank 110 .

In addition, the wheel part 112a, as a component mounted on the lower surface frame 112, may have a structure in which a brake that is locked or opened by an operator's handling is mounted.

In this case, according to the present embodiment, the anti-rust liquid receiving part 111, the lower surface frame 112, the side frame 113, the upper frame 114, the anti-rust liquid delivery port 119, the binding part ( 113a) and the wheel part 112a by having the supply tank 110 for the antirust solution, and by handling the lightened antirust solution supply tank 110 Therefore, it is possible to maximize work efficiency, and it is possible to easily connect a plurality of rust preventive liquid supply tanks 110, so that it is possible to configure a suitable rust preventive liquid supply tank 110 according to the required capacity of the rust preventive liquid, as a result, water pressure It is possible to provide a rust preventive supply unit for rust prevention that can maximize the dismantling work efficiency after test preparation and hydraulic test.

In some cases, the rust preventive solution accommodating part 111 according to the present embodiment includes a water accommodating part 111a of a specific structure, a rust preventing undiluted solution accommodating part 111d, a microbial propagation inhibitor accommodating part 111e, and an opening/closing plate 111c). , the rotating shaft (111f), the stirring blade (111g) and may be configured to further include a sampling outlet (115a).

Specifically, as shown in FIG. 6 , the water receiving part 111a of the rust preventive liquid accommodating part 111 is formed in a hollow cylindrical structure inside the rust preventive liquid accommodating part 111 and has a through hole along the outer circumferential surface. (111b) may have a structure formed spaced apart from each other.

At this time, the opening/closing plate 111c according to the present embodiment may change the sliding position along the inner circumferential surface of the water accommodating part 111a to open and close the through hole 111b.

The rust-preventing undiluted solution accommodating part 111d is formed by an outer peripheral surface of one side of the water accommodating part 111a and an inner surface of the rust-preventing solution accommodating part 111, and may have a structure for accommodating the rust-preventing undiluted solution therein.

The microbial propagation inhibitor accommodating part 111e is formed by the other outer peripheral surface of the water accommodating part 111a and the inner surface of the rust preventive liquid accommodating part 111, and may have a structure for accommodating the microbial growth inhibitory agent therein.

The rotating shaft 111f is a configuration that is rotatably mounted to the central portion of the water receiving part 111a, and may have a structure extending in the vertical direction. The stirring blade 111g may have a structure in which a plurality of agitation blades are spaced apart from each other by a predetermined angle by a predetermined length and width on the outer peripheral surface of the rotation shaft 111f.

Moreover, the sampling outlet 115a is a structure formed in the upper part of the water storage part 111a, and can sample the stirred rust prevention liquid.

In this case, according to the present embodiment, the through-hole 111b of a specific structure, the water receiving part 111a, the opening/closing plate 111c, the rust prevention stock solution receiving part 111d, the microorganism propagation inhibitor receiving part 111e, the rotating shaft ( 111f) and the stirring blade (111g) provided with the rust preventive solution receiving unit 111 including (111g), it is possible to easily and accurately match the content ratio of the rust preventive solution required for the hydraulic test, to perform a hydraulic test using a good quality rust preventive solution. As a result, it is possible to ensure a stable hydraulic test.

On the other hand, the rust prevention liquid supply pump 120 according to the present embodiment rotates by supply of compressed air from the outside to perform a pumping operation, the maximum operating pressure is 5 to 8 bar, and the air diaphragm having a capacity of 4,500 to 5,500 l/min. It may be a pump.

In this case, according to the present embodiment, by using the rust preventive liquid supply pump 120 that rotates by supplying compressed air from the outside to perform a pumping operation, moisture comes into contact with the rust preventive liquid supply pump 120 exposed to the external environment. By doing so, it is possible to fundamentally block an electric shock accident that may occur, and it is possible to provide a rust preventive agent supply unit for rust prevention that includes a configuration that is safe from electric accidents.

As shown in FIGS. 2 and 4, the manifold pressure vessel 140 of the distribution board part 130 according to this embodiment has a pressure vessel structure that can withstand an internal pressure of up to 60 bar. It is preferable that

At this time, a rust preventive solution receiving nozzle 141 for accommodating the rust preventive liquid delivered from the rust preventive liquid supply pump 120 is mounted on one head of the manifold pressure vessel 140 according to the present embodiment, and the manifold pressure vessel 140 ) may be equipped with a pressure receiving nozzle 142 for receiving the pressure from the boosting pump 150 on the other side of the head.

More preferably, an emergency discharge nozzle 143 having a valve capable of withstanding an internal pressure of up to 100 bar may be mounted on the upper surface of the shell of the manifold pressure vessel 140 .

8 is a schematic plan view showing each system connected to the opening and closing connection nozzle of the manifold pressure vessel of the rust preventive supply unit for rust prevention according to an embodiment of the present invention.

Referring to FIG. 8 together with FIG. 2 , a plurality of opening and closing connection nozzles 144 may be independently mounted on one side of the manifold pressure vessel 140 according to the present embodiment.

Specifically, it is preferable that the generator starting system, the main engine starting system, the control air system, and the service air system communicate independently with each of the opening and closing connection nozzles 144 according to the present embodiment.

In this case, according to the present embodiment, a manifold pressure vessel ( 140), it is possible to independently perform a hydraulic test for a plurality of systems, and after performing a hydraulic test for each system, the injected rust preventive solution is discharged for each system, so that the rust preventive fluid can be managed easily and stably. Therefore, it is possible to provide a rust preventive supply unit for rust prevention that can maximize the hydraulic test work efficiency.

9 is a flowchart illustrating a method of operating a rust preventive agent supply unit for rust prevention according to an embodiment of the present invention. In addition, FIG. 10 is a schematic plan view showing a state in which a hydraulic test is performed using a rust preventive supply unit for rust prevention according to an embodiment of the present invention, and in FIG. 11 , a rust preventive agent for rust prevention according to an embodiment of the present invention A plan schematic diagram showing the discharge of the rust preventive solution after performing the hydraulic test using the supply unit is shown.

Referring to these drawings, the operating method (S100) of the rust preventive agent supply unit for rust prevention of the pipe according to this embodiment (S100), the rust preventive solution preparation step (S110) for performing a specific process, the manifold connection step (S120), the rust preventive solution injection step (S130), by providing a rust preventive solution receiving nozzle locking step (S140), a pressure maintaining step (S150) and a rust preventing solution discharging step (S160), it is possible to easily and stably perform a hydraulic test independently of a plurality of systems, After performing a hydraulic test for each system, the injected rust preventive solution is discharged for each system so that the rust preventive solution can be managed easily and stably, thereby maximizing the hydraulic test work efficiency. can

Specifically, the rust prevention liquid preparation step (S110) performs a process of accommodating the rust prevention liquid, water, and the microbial growth inhibitor in a predetermined content ratio in the rust prevention liquid supply tank (110).

In the manifold connection step (S120), a process of connecting the system, which is a hydraulic test target, to the opening and closing connection nozzle 144 of the manifold pressure vessel 140 is performed.

In the rust preventive liquid injection step (S130), the air venting unit 160 of the hydraulic test target pipe is opened, and the connected open/close connection nozzle 144 is opened, and then the rust preventive liquid supply pump 120 and the booster pump 150 are connected. Follow the process to make it work.

In the rust preventive solution receiving nozzle locking step (S140), when a predetermined amount of rust preventive solution is supplied from the rust preventive liquid supply tank 110 into the manifold pressure vessel 140, the operation of the rust preventive liquid supply pump 120 is stopped, and the rust preventive liquid is received A process of locking the nozzle 141 is performed.

The pressure maintenance step (S150) is to lock the air venting part 160 of the hydraulic test target pipe, monitor the pressure state of the pressure gauge 145 mounted on the open and close connection nozzle 144, and become the hydraulic test target When the pressure provided to the system enters the reference range, the opening and closing connection nozzle 144 is locked, the operation of the boosting pump 150 is stopped, and the pressure test is started.

In the rust preventive solution discharge step (S160), as shown in FIG. 11, when the pressure test is finished, the rust preventive solution receiving nozzle 141 and the open/close connection nozzle 144 are opened, and the air venting part ( 160) is opened and compressed air is injected into the air venting unit 160 to flow the rust preventive solution injected into the hydraulic test target pipe to the rust preventive solution supply tank 110 through the manifold pressure vessel 140. carry out

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it is to be understood that the present invention is not limited to the particular form recited in the detailed description, but rather, it is to be understood to cover all modifications and equivalents and substitutions falling within the spirit and scope of the present invention as defined by the appended claims. should be

That is, the present invention is not limited to the specific embodiments and descriptions described above, and any person skilled in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications are possible, and such modifications shall fall within the protection scope of the present invention.

10: Pipe for hydraulic test
100: rust inhibitor supply unit for rust prevention
110: rust prevention liquid supply tank
111: rust prevention liquid storage unit
111a: water receiving unit
111b: through hole
111c: opening plate
111d: anti-rust undiluted solution storage unit
111e: microbial growth inhibitor storage unit
111f: axis of rotation
111g: stirring blade
112: lower surface frame
112a: wheel part
113: side frame
113a: binding part
114: upper frame
115: rust preventive solution inlet
115a: sampling spout
116: rust preventive solution outlet
117: on-off valve
118: rust preventive liquid induced curved structure
119: anti-rust solution delivery port
120: rust prevention liquid supply pump
130: distribution unit
140: manifold pressure vessel
141: rust inhibitor receiving nozzle
142: pressure receiving nozzle
143: emergency discharge nozzle
144: retractable connection nozzle
144a: retractable connecting nozzle
144b: retractable connecting nozzle
144c: retractable connecting nozzle
144d: retractable connecting nozzle
144e: retractable connecting nozzle
144f: retractable connecting nozzle
145: pressure gauge
150: booster pump
160: air venting unit
S100: Rust prevention rust prevention agent supply unit operation method
S110: rust prevention liquid preparation step
S120: Manifold connection step
S130: rust prevention liquid injection step
S140: Rust inhibitor receiving nozzle locking step
S150: pressure maintenance step
S160: rust prevention liquid discharge step

Claims (5)

A rust preventive solution supply tank 110 having a storage space capable of accommodating the rust preventive liquid therein, and having a total weight of less than 1 ton in which the rust preventive liquid is fully accommodated therein;
a rust preventive solution supply pump 120 that operates by supplying compressed air to deliver the rust preventive liquid stored in the rust preventive liquid supply tank 110 to the manifold pressure vessel 140;
It has a pressure vessel structure for accommodating the rust preventive liquid delivered from the rust preventive liquid supply pump 120 inside, and an open and close connection nozzle 144 communicating with each system on one side is mounted together with a pressure gauge 145. Manifold pressure A distribution board part (130) comprising a vessel (manifold pressure vessel, 140), and a pressure boosting pump 150 for increasing the pressure inside the manifold pressure vessel (140); and
an air venting unit 160 that is formed in the hydraulic test target pipe and is opened when the rust preventive solution is injected to discharge internal air to the outside, and is opened when the rust preventive solution is discharged to inject pressure air;
including,
The rust prevention liquid supply tank 110,
It has a hollow box structure formed to have a predetermined volume capable of accommodating the rust preventive liquid therein, the rust preventive liquid inlet 115 is formed on the upper surface, and the rust preventive liquid outlet 116 is the on/off valve 117 on the lower side of the side surface Anti-rust liquid receiving unit 111 formed together;
It has a structure corresponding to the lower surface of the anti-corrosive liquid accommodating part 111 and is mounted on the lower surface of the anti-rust liquid accommodating part 111 and protrudes to one side by a predetermined length adjacent to the rust-preventing liquid outlet 116 to induce the rust preventive solution. The lower surface frame 112 in which the curved structure 118 is formed;
a side frame 113 which is mounted to be spaced apart from each other by a predetermined interval along the upper edge of the lower frame 112 and extends upward in a structure surrounding the side surface of the rust preventive solution receiving part 111;
An upper frame 114 of a frame structure that connects the upper end of the side frame 113 in an integrated structure and is bound to a traction wire of an external crane and can be handled;
Rust prevention agent supply unit for preventing rust of the pipe, characterized in that it comprises a.
According to claim 1,
The rust prevention liquid supply tank 110,
a rust preventive solution delivery port 119 that is mounted on the lower side of the side surface of the rust preventive solution receiving unit 111 and is coupled to and communicates with the rust preventive solution outlet 116 of another rust preventive solution supply tank 110;
a coupling part (113a) mounted on the side frame (113) and having a structure detachable from the side frame (113) of another anti-rust solution supply tank (110); and
a wheel part (112a) having a brake that is locked or opened by an operator's handling on the lower surface frame (112);
Rust prevention agent supply unit for preventing rust of the pipe, characterized in that it comprises a.
3. The method of claim 2,
The rust preventive solution receiving unit 111,
a water accommodating part 111a formed in a hollow cylindrical structure inside the rust-preventing liquid accommodating part 111 and having through-holes 111b spaced apart from each other at regular intervals along an outer circumferential surface;
an opening/closing plate 111c for opening and closing the through hole 111b by changing the sliding position along the inner circumferential surface of the water accommodating part 111a;
a rust-preventing undiluted solution accommodating part (111d) formed by an outer circumferential surface of one side of the water accommodating part (111a) and an inner surface of the rust-preventing liquid accommodating part 111, and accommodating a rust-preventing undiluted solution therein;
a microorganism propagation inhibiting agent accommodating part (111e) formed by the other outer circumferential surface of the water accommodating part (111a) and the inner surface of the rust preventing liquid accommodating part 111, and accommodating a microbial growth inhibitory agent therein;
a rotating shaft 111f that is rotatably mounted in the center of the water receiving part 111a and extends in the vertical direction;
A plurality of stirring blades (111g) spaced apart by a predetermined angle with a width of a predetermined length on the outer peripheral surface of the rotation shaft (111f); and
a sampling outlet (115a) that is formed on the water receiving part (111a) and can sample the stirred rust preventive solution;
Rust prevention agent supply unit for preventing rust of the pipe, characterized in that it comprises a.
According to claim 1,
The rust prevention liquid supply pump 120 is an air diaphragm pump that rotates by supply of compressed air from the outside to perform a pumping operation, has a maximum operating pressure of 5 to 8 bar, and has a capacity of 4,500 to 5,500 l/min,
The manifold pressure vessel 140 of the distribution board part 130 has a pressure vessel structure that can withstand an internal pressure of up to 60 bar,
A rust preventive solution receiving nozzle 141 for accommodating the rust preventive liquid delivered from the rust preventive liquid supply pump 120 is mounted on one head of the manifold pressure vessel 140,
A pressure receiving nozzle 142 for receiving the pressure from the pressure boosting pump 150 is mounted on the other head of the manifold pressure vessel 140,
A rust preventive supply unit for preventing rust in a pipe, characterized in that an emergency discharge nozzle (143) equipped with a valve capable of withstanding a maximum internal pressure of 100 bar is mounted on the upper surface of the shell of the manifold pressure vessel (140).
According to claim 1,
A plurality of opening and closing connection nozzles 144 are each independently mounted on one side of the manifold pressure vessel 140,
Each of the opening and closing connection nozzles 144, a generator starting system, a main engine starting system, a control air system and a service air system are each independently communicated with each other.

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