KR20130128976A

KR20130128976A - Hydro test apparatus for ship

Info

Publication number: KR20130128976A
Application number: KR1020120053233A
Authority: KR
Inventors: 정해규
Original assignee: 현대중공업 주식회사
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2013-11-27

Abstract

Marine hydro test equipment is disclosed. Hydro test equipment for ships according to an embodiment of the present invention includes a pressurizing unit for pressurizing water at a predetermined pressure for the pressure test for various equipment or pipes installed in the vessel; A manifold supplied with pressurized water and having a plurality of main branches; And a sub branch connected to the main branch and extending outward and in which a pressure gauge is installed.

Description

Hydro test apparatus for ship

The present invention relates to a device for testing the pressure state of various pipes installed in the ship, and more particularly to a hydro test equipment for ships that can be carried out a pressure test for a plurality of test objects at the same time.

In general, after a long period of construction work on the hull forming a basic appearance, the ship is equipped with the engine, propeller, and various equipment and piping necessary for propulsion. For example, the engine has a complex oil system necessary for operation, and is equipped with a system in which lubricating oil is supplied for stable rotation even in an extended shaft of the engine.

In this way, various pipes including the engine installed on the ship are tested to ensure that the set pressure set at the time of initial design is stably satisfied after the installation is completed. Doing.

Conventionally, in order to perform a test on such various equipment and pipes, the water is supplied to the hose in a state similar to the set pressure through a motor in a state in which a hose (not shown) is connected to one of the equipment or pipes one to one. The leakage of equipment and piping was observed.

However, such a conventional test method cannot simultaneously test a plurality of equipments and pipes to be tested, so the operator has to carry out a test on one of the equipments, and then move to another equipment to perform a hydraulic test. Therefore, the time required for the test was relatively long.

In particular, when the ship is built with dry cows, equipment is installed, and the test is carried out, the test is not performed correctly because the deadline is too short, or when the water leaks due to water pressure during the test, it is repaired and reinstalled. Considering the time required, there was a need for hydraulic test equipment that could test multiple equipment and piping as quickly as possible.

Republic of Korea Patent Application Publication No. 10-2009-20825 (published: February 27, 2009)

Embodiments of the present invention are intended to simultaneously perform pressure tests on a plurality of equipment and piping.

According to an aspect of the present invention, the pressure unit for pressurizing the water at a predetermined pressure for the pressure test for the various equipment or pipes installed on the vessel; A manifold supplied with pressurized water and having a plurality of main branches; And a sub branch connected to the main branch and extending outward and in which a pressure gauge is installed.

The ship hydro test equipment is characterized in that the water is supplied through the supply pipe to which the water to be supplied to the equipment or piping is introduced.

The pressurizing unit is connected to the manifold and the pump having a discharge pipe for supplying water introduced through the supply pipe to the manifold, and a return pipe for returning water through the equipment or piping; It includes a motor for providing a rotational force to the pump.

The pump further includes a filter installed in front of the discharge pipe.

The marine hydro test equipment includes a moving tray in which a plurality of wheels are installed on a lower surface of the pump and the motor.

Embodiments of the present invention can be carried out a hydraulic test for a plurality of equipment and piping installed on the ship at the same time improves workability and work speed.

Embodiments of the present invention can be performed quickly even when the time required for the hydraulic test is tight.

1 is a front view of the ship hydro test equipment according to an embodiment of the present invention.
Figure 2 is a side view of the ship hydro test equipment according to an embodiment of the present invention.
3 is a view showing a pump installed in the ship hydro test equipment according to an embodiment of the present invention.
4 is a view showing a pump and a motor installed in the ship hydro test equipment according to an embodiment of the present invention.
5 is a view showing a manifold and a main branch installed in the ship hydro test equipment according to an embodiment of the present invention.
6 is a view showing a sub branch installed in the ship hydro test equipment according to an embodiment of the present invention.
Figure 7 is a use state of the ship hydro test equipment according to an embodiment of the present invention.

With reference to the drawings will be described with respect to the configuration of the ship hydro test equipment according to an embodiment of the present invention.

1 to 2, the hydro test equipment 1 according to an embodiment of the present invention pressurizes water at a predetermined pressure for a pressure test on various equipment or pipes that are test targets installed in a ship. The pressurizing part 100, the manifold 200 having a plurality of main branch parts 210 supplied with pressurized water through the press part 100, and connected to the main branch part 210 to the outside And a sub branch 300 which is extended and provided with a pressure gauge 10 (see FIG. 6).

Hydro test equipment 1 according to the present embodiment is provided with a wheel 4a is provided on the lower side and a moving tray 4 for easily moving the hydro test equipment 1 to a specific position of the vessel. The pressurizing part 100 is installed in the moving tray 4, and the moving tray 4 is formed in a U-shape, but is not necessarily limited to the above-described form.

Hydro test equipment 1 is provided with a supply pipe 2 (see Fig. 7) for supplying water to the equipment or piping, the supply pipe 2 is connected to the pump 110 to be described later. Supply pipe 2 may be supplied from the outside of the ship or from a separate water tank for testing.

The pressing unit according to an embodiment of the present invention will be described with reference to the drawings.

3 to 4, the pressurizing unit 100 pressurizes the water at a predetermined pressure to more easily supply the water supplied through the aforementioned supply pipe 2 to various equipment or pipes to be tested. do. The pressurization part 100 includes a pump 110 and a motor 120, and the pump 110 is provided with a discharge pipe 112 and a return pipe 114.

The discharge pipe 112 is installed to supply the water introduced through the supply pipe 2 to the manifold 200, and the return pipe 114 is installed to return the water supplied to the various equipment and pipes. The discharge tube 112 and the return tube 114 may be a tube made of a flexible material having a predetermined diameter and is not particularly limited in length. Particularly, in the case of a ship, the length of the return pipe 114 may be extended to several tens of meters or more than one hundred meters, and the length is not particularly limited.

The pump 110 further includes a filter 111 installed at the front end of the discharge port 112. The filter 111 is installed to filter foreign matter contained in the water discharged through the discharge port 112. The pump 110 includes a pulley 3 coupled to a pump shaft (not shown).

The motor 120 is installed to provide the rotational force to the pump 110 described above, and the belt B installed on the rotation shaft is connected to the pulley 3 so that the rotational force according to the operation of the motor 120 is changed to the pump 110. It is delivered stably.

A manifold according to an embodiment of the present invention will be described with reference to the drawings.

5 to 6, the manifold 200 is formed in a tubular shape having a predetermined length and diameter, and finishing flanges F1 are installed at both left and right ends thereof. The finishing flange (F1) is installed to perform the repair after removal from the manifold 200 when the internal repair of the manifold 200 is required.

The manifold 200 is provided with a plurality of main branches 210 along the longitudinal direction, and in this embodiment, the main branches 210 are shown to extend toward the front of the moving tray 4, but in this direction, It is not limited. In addition, the main branch 210 is composed of a combination of a plurality of first valve (202).

Manifold 200 includes a plurality of flanges (F2) extending toward the main branch 210, the flange (F2) is connected to the main branch (210). The main branch 210 has a flange (F3) is formed at both ends to be connected to the above-described flange (F2), the control valve 20 for adjusting the flow rate between the flange (F3) and the flange (F3) An integral first valve 202 is provided. Although the control valve 20 of the manual type is illustrated in the present embodiment, it is apparent that the control valve 20 may be provided with an automatic control valve.

When the main branch 210 is not used, a separate finishing flange (F4) is installed, it can be selectively removable by the operator. For example, in order to connect the equipment to be tested to the main branch 210, it may be connected in a state where the fixing state of the closing flange (F4) is released.

The manifold 200 includes a plurality of sub-branches 300 extending in a lengthwise upward direction and provided with a pressure gauge 10, wherein the sub-branches 300 are composed of a combination of second valves 302.

Like the main branch 200 described above, the sub branch 300 extends a predetermined length toward the upper side. Sub-branch 300 is a second valve in which the flange (F6) is installed at both ends and connected to the flange (F5) installed toward the upper side of the manifold 200, the control valve 21 for adjusting the flow rate integrally 302 is installed. A plurality of second valves 302 may be connected toward the upper side, and in the present embodiment, three to four valves are installed, but the number is not limited thereto.

The sub branch 300 may easily correspond to the increased equipment by additionally connecting the second valve 302 in the field when the number of the equipment and the pipe to be inspected is increased.

A state of use of the hydro test equipment according to an embodiment of the present invention configured as described above will be described with reference to the drawings.

1 or 7, the operator moves the moving tray 4 near the equipment to be subjected to the hydraulic test. The moving tray 4 is provided with wheels 4a so that it is easily moved to a desired place. For example, in order to simultaneously carry out a pressure test on a pipe to which an engine oil of a ship to be tested is supplied, a pressure test on a stern tube, and a pressure test on other pipes, a tube 6a, One end of 6b and 6c is connected and the other end is connected to the first valve 202 and the second valve 302.

Then, when power is applied to the motor 120, the rotational force according to the rotation of the motor 120 is transmitted to the pump 110 through the belt B and the pulley 3, and the rotation speed per minute of the motor 120 is applied. Accordingly, the pressure of the water discharged through the pump 110 is changed and supplied to the manifold 200 via the filter 111 and the discharge pipe 112.

The operator observes the pressure gauge 10 and adjusts the revolutions per minute of the motor 120 until a pressure state similar to the set pressure of the test object appears, and pressurizes to the high pressure state through the first and second valves 202 and 302. The water is fed simultaneously to a plurality of test objects via tubes 6a, 6b, 6c as shown by the arrows.

The water supplied to the test object is pressurized water set to a specific pressure and passes through the test object with a predetermined pressure, and the operator checks whether there is an abnormality by visually checking whether the test object leaks.

If a leak occurs on a specific test object, check the area and perform repairs after the hydraulic test is completed. The pressurized water supplied to the test object is returned to the pump 110 through the return pipe 114 and continuously circulated and supplied to the discharge pipe 112 through the pump 110, and the test object is tested. Can test multiple test objects at once.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

4: moving tray
10: pressure gauge
100: pressurization part
112: discharge tube
114: filter
200: manifold
202: first valve
302: second valve
300: branch pipe

Claims

A pressurizing unit for pressurizing water at a predetermined pressure for a pressure test on various equipment or pipes installed on the vessel;
A manifold supplied with pressurized water and having a plurality of main branches; And
And a sub branch connected to the main branch extending outward and having a pressure gauge installed therein.

The method according to claim 1,
The marine hydro test equipment,
Hydro test equipment for ships characterized in that the water is supplied through a supply pipe into which the water to be supplied to the equipment or piping is introduced.

The method according to claim 1 or 2,
The pressing portion
A pump having a discharge pipe connected to the manifold and supplying water introduced through the supply pipe to the manifold, and a return pipe for returning water through the equipment or pipe;
Ship hydro test equipment comprising a motor for providing a rotational force to the pump.

The method according to claim 1,
The pump includes:
Ship hydro test equipment further comprising a filter installed in the front of the discharge pipe.

The method of claim 3,
The marine hydro test equipment,
The pump and the motor is installed, the hydro test equipment for a ship comprising a moving tray having a plurality of wheels installed on the bottom.