KR20160147318A - Support for marine cooling jacket hydrostatic test - Google Patents

Support for marine cooling jacket hydrostatic test Download PDF

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Publication number
KR20160147318A
KR20160147318A KR1020150083894A KR20150083894A KR20160147318A KR 20160147318 A KR20160147318 A KR 20160147318A KR 1020150083894 A KR1020150083894 A KR 1020150083894A KR 20150083894 A KR20150083894 A KR 20150083894A KR 20160147318 A KR20160147318 A KR 20160147318A
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KR
South Korea
Prior art keywords
water
pressure plate
hydraulic pressure
cooling jacket
jig
Prior art date
Application number
KR1020150083894A
Other languages
Korean (ko)
Inventor
송해동
Original Assignee
(주)동성공업
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)동성공업 filed Critical (주)동성공업
Priority to KR1020150083894A priority Critical patent/KR20160147318A/en
Publication of KR20160147318A publication Critical patent/KR20160147318A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P3/04—Liquid-to-air heat-exchangers combined with, or arranged on, cylinders or cylinder heads
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3209—Details, e.g. container closure devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/023—Pressure
    • G01N2203/0232—High pressure

Abstract

The present invention provides a jig for a water pressure test of a cooling jacket of a vessel, capable of testing cooling jackets with various types of diameters using a single equipment. According to the present invention, the jig comprises: three-stage circular sills (11, 11, 11) formed on a top; a combination support rod (12) erected on a center having a thread (12) in an upper part; a lower water pressure plate (10) having a drain hole (13) punched on one side to drain water towards a lower part by a drain valve (14); an air valve (26) installed by punching a combination support rod insertion hole (24) on the center, punching an air hole (25) on one side; and an upper water pressure plate (20) having three-stage circular sills (21, 21, 21) on a bottom. As such, since an O-ring (30) is installed in one among the three-stage circular sills (11, 11, 11, 21, 21, 21) of the upper and lower water pressure plate (20, 10), the combination support rod (12) of the lower water pressure plate (10) is inserted into the combination support rod insertion hole (24) of the upper water predetermined plate (20) to fasten a nut (N) with the thread (12) while a cooling jacket (C) is pressed and inserted into the jig.

Description

[0001] The present invention relates to a hydrostatic test jig for a marine cooling jacket,

The present invention relates to a hydrostatic test jig for a marine cooling jacket capable of testing an inner watertightness and a water pressure before a cooling jacket for a ship made of cast iron is applied to a ship, and more particularly, A lower pressure plate formed to allow water to be drained by a drain valve at a lower portion, a pressure gauge and a water inlet at the upper portion, The present invention relates to a hydraulic test jig capable of testing a hydraulic pressure by pressurizing a cooling jacket with an upper hydraulic plate having an air valve, an air valve, and a three-stage circular step formed at the lower end thereof.

Generally, a cooling jacket is installed on a side of an engine cylinder of a ship to perform a cooling operation to prevent overheating of an engine cylinder. The cooling jacket is formed into a cylindrical shape by a casting manufacturing method and has a plurality of holes.

The cooling jacket is a part requiring a pressure of 7.5 Bar. In the water pressure test performed before installation of the ship, water tightness and water pressure are checked at a water pressure of 10.0 Bar.

Registration No. 20-0463303 (Cylinder Head Hydraulic Test Jig) and Registered Utility Model No. 20-0342839 (Hydraulic Test Device for High-Pressure Turbine) which are used as a jig for testing conventional hydraulic pressure have been proposed.

The electronic registration model of the former includes a jig main body having a fitting groove and a base plate, a valve for injecting water, a drain hole for draining water, a rubber ring for sealing the injected water, a stud bolt fixing the cylinder head to the jig main body, A valve gauge for measuring the internal water pressure, and an air valve for discharging the air inside the cylinder head. The water pressure is checked through the valve gauge to confirm that water leaks.

The second regulatory utility model includes a first water supply hose passing through the plate for supplying water, a second and third water supply lakes through which water is supplied from the one chamber through the one chamber, And a third air discharge hose passing through the case so that the air is discharged to the outside.

The former has a fitting groove in the jig main body and a rubber ring in the base of the base, and a valve spindle mounting portion of the cylinder head is provided. The cylinder head is fixed to the jig main body by stud bolts and nuts. On one side and the other side of the cylinder head hole, And the air valve is installed to check the water pressure and to confirm that the water leaks. The jig body has a structure in which the cylinder head is placed so as to be capable of simply supplying and discharging water to and from the valve, And the valve gauge is mounted on one side of the hole of the cylinder head by a flange and the air valve is provided on the other side by a flange. The cylinder head is fixed to the body of the jig And the process of installing the valve gauge and the air valve in the cylinder hole is done by screwing Since a basic jig is to be able to have a disadvantage in that the operation delay time as well as the installation and uninstallation complicated the structure of the jig body by simple and placed the cylinder head only perform water supply and discharge.

In the latter case, the chamber and the chamber of the high-pressure turbine are sealed by a plate and a stopper, and water is supplied through each of the plates and the case through the first, second and third water supply hoses to discharge the air to the outside In order to test the hydraulic pressure of the high-pressure turbine, the installation of the plate, the stopper, the water supply hose and the air discharge hose is complicated and many There is a problem that installation time is required.

       SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a hydraulic pressure control system, It is possible to test a cooling jacket with various pies by installing inlet port and drain valve and air valve. It is easy to press and install cooling jacket. Cooling of vessel for easy supply and discharge of test water and easy discharge of air. Thereby making it possible to provide a jacket water pressure test jig.

The present invention is characterized in that a three-step circular stepped top is formed at the upper end and a coupling support bar having a thread formed thereon is installed at the center, and a water drainage hole is formed at one side to drain water by a drain valve, A pressure gauge and a water inlet are provided in the center of the upper and lower hydraulic pressure plates, a coupling support rod insertion hole is drilled in the center, and air holes are drilled in one side to form an air valve. And the cooling jacket is inserted into one of the three-step round steps of each of the plates, and the coupling support bar of the lower hydraulic pressure plate is inserted into the coupling support bar insertion hole of the upper hydraulic plate and fastened to the screw thread with a nut.

Further, the three-stage round step provided on the lower hydraulic pressure plate and the upper hydraulic pressure plate is characterized in that three types of cooling jackets of different pie sizes can be subjected to hydrostatic test.

Therefore, the present invention can easily perform water pressure testing of a plurality of marine cooling jackets using a single test jig, and can easily work and fix the cooling jacket into the jig and fix the cooling jacket to the jig. It is possible to shorten the time required for the test water, and to shorten the time required for the water pressure test by performing the operation such as supplying and discharging the test water and discharging the air quickly.

1 is an exploded perspective view showing the entire structure of the present invention.
Fig. 2 is a cross-sectional view showing the use state of the present invention
Fig. 3 is a schematic view of a cooling jacket according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

FIG. 1 is an exploded perspective view showing the entire structure of the present invention. FIG. 1 is a perspective view illustrating the entire structure of the present invention. An air valve, and an air valve. FIG. 2 is a structural cross-sectional view illustrating the state of use of the present invention, in which a cooling jacket is installed on a lower water pressure plate, an upper water pressure plate is installed on the upper water pressure plate, And the water jacket of the cooling jacket is tested.

A hydrostatic test jig of a cooling jacket mounted on an engine cylinder of a ship to prevent overheating of an engine cylinder,

A coupling support rod 12 having three stepped circular stepped portions 11 and 11 'and 11' 'formed at the upper end thereof and a threaded portion 12' formed thereon is disposed at the center, and a water drainage hole 13 is formed at one side thereof, A lower pressure receiving plate 10 is formed so that water can be drained by a drain valve 14 and a pressure gauge 22 and a water inlet 23 are provided at an upper end thereof, The upper hydraulic pressure plate 20 is formed by piercing the air hole 25 at one side to provide the air valve 26 and the three-stage circular stepped portions 21, 21 'and 21' 'at the lower end thereof, An O-ring 30 is installed in any one of the three-step circular steps 11, 11 ', 11', 21, 21 'and 21' 'of the upper and lower hydraulic pressure plates 10 and 20, The connecting rod 12 of the lower hydraulic pressure plate 10 is inserted into the coupling rod insertion hole 24 of the upper hydraulic pressure plate 20 and the nut 12 is fastened to the thread 12 ' Respectively.

The three step round steps 11, 11 ', 11', 21, 21 'and 21' 'provided in the lower hydraulic pressure plate 10 and the upper hydraulic pressure plate 20 have three kinds of pie, Of the cooling jacket (C).

In the drawing, reference numeral 40 denotes a pedestal.

According to the present invention, a pair of upper and lower pressure plates provided with upper and lower circular stages at the upper and lower ends thereof, a single supporting device, a coupling rod, a pressure gauge and a water inlet, a drain valve, It is possible to carry out water pressure test of other marine cooling jacket, press-fit the cooling jacket into the jig, and fix the jig easily, thereby setting the cooling jacket on the jig, shorten the other time to dismantling the mill, The present invention provides a water jacket water jacket jig capable of shortening the water pressure test time by rapidly advancing operations such as air discharge.

As shown in FIG. 1, the present invention comprises a lower hydraulic pressure plate 10 and an upper hydraulic pressure plate 20.

The lower hydraulic pressure plate 10 has a coupling support rod 12 having three stepped circular stepped portions 11 and 11 'and 11' formed at the upper end thereof and a threaded portion 12 'formed thereon at its center, And the drain valve 14 is connected to the lower portion of the lower hydraulic pressure plate 10 to drain the test water after the test.

The upper hydraulic pressure plate 20 is provided with a pressure gauge 22 and a water inlet 23 at the upper end thereof. The upper hydraulic pressure plate 20 is provided with an insertion hole 24 at the center thereof, (21 ') and (21' ') are formed at the lower end of the air valve (26).

2, the lower hydraulic pressure plate 10 and the upper hydraulic pressure plate 20 are placed on a pedestal 40 having a plurality of drain holes formed in the upper plate, An O-ring 30 is installed at one of the stepped portions 11, 11 ', 11' ', and the cooling jacket C is placed.

The coupling support rod insertion hole 24 of the upper hydraulic pressure plate 20 is inserted into the coupling support rod 12 of the lower hydraulic pressure plate 10 and fixed to the coupling support rod thread 12 '

At this time, an O-ring 30 is provided at one of the three stepped circular steps 21, 21 'and 21' 'of the upper hydraulic pressure plate 20 to press-fit the cooling jacket C.

That is, according to the pie of the cooling jacket C, the O-rings 30 are installed in the same size out of the upper and lower steps 11, 11 ', 11', 21, 21 ' .

When the cooling jacket C is installed as described above, the test water is supplied to the inside of the cooling jacket C through the water inlet 23, the internal air is discharged through the air valve 26, The pressure of the cooling jacket (C) is checked and checked so that the pressure of the cooling jacket (C) becomes 10.0 Bar.

When the inspection is completed, the drain valve 14 provided at the lower end of the lower hydraulic pressure plate is opened to discharge the test water. At this time, the air valve 26 is also opened to discharge the test water in a short time, release the nut N, ), Dismantle the cooling jacket (C), and wait for the next water pressure test.

 11 ', 21', 21 '' and 21 '', which are provided on the lower hydraulic pressure plate 10 and the upper hydraulic pressure plate 20, (30) are installed to provide three kinds of cooling jackets (C) having different pies, so that the water pressure test can be performed.

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 and scope of the invention as defined in the appended claims. And such changes are within the scope of the claims.

10: Lower hydraulic pressure plate 11, 11'11 ": Three-stage circular step
12: coupling support rod 12 ': thread
13: Water drainage 14: Drain valve
20: upper hydraulic pressure plate 21, 21 ', 21 ": three-stage circular step
22: pressure gauge 23: water inlet
24: engaging support bar insertion hole 25: air hole
26: Air valve 30: O-ring
C: Cooling jacket N: Nut

Claims (2)

A hydrostatic test jig of a cooling jacket mounted on an engine cylinder of a ship to prevent overheating of an engine cylinder,
A coupling support rod 12 having three stepped circular stepped portions 11 and 11 'and 11''formed at the upper end thereof and a threaded portion 12' formed thereon is disposed at the center, and a water drainage hole 13 is formed at one side thereof, A lower pressure receiving plate 10 is formed so that water can be drained by a drain valve 14 and a pressure gauge 22 and a water inlet 23 are provided at an upper end thereof, The upper hydraulic pressure plate 20 is formed by piercing the air hole 25 at one side to provide the air valve 26 and the three-stage circular stepped portions 21, 21 'and 21''at the lower end thereof, An O-ring 30 is installed in any one of the three-step circular steps 11, 11 ', 11', 21, 21 'and 21''of the upper and lower hydraulic pressure plates 10 and 20, The connecting rod 12 of the lower hydraulic pressure plate 10 is inserted into the coupling rod insertion hole 24 of the upper hydraulic pressure plate 20 and the nut 12 is fastened to the thread 12 ' A water jacket for a marine cooling jacket It bit the jig.
The method according to claim 1,
The three step round steps 11, 11 ', 11', 21, 21 'and 21''provided in the lower hydraulic pressure plate 10 and the upper hydraulic pressure plate 20 have three kinds of pie, And the cooling jacket (C) of the water jacket (1) can be subjected to a water pressure test.
KR1020150083894A 2015-06-15 2015-06-15 Support for marine cooling jacket hydrostatic test KR20160147318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150083894A KR20160147318A (en) 2015-06-15 2015-06-15 Support for marine cooling jacket hydrostatic test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150083894A KR20160147318A (en) 2015-06-15 2015-06-15 Support for marine cooling jacket hydrostatic test

Publications (1)

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KR20160147318A true KR20160147318A (en) 2016-12-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109781421A (en) * 2019-01-16 2019-05-21 中国航发沈阳发动机研究所 A kind of rear measurement group section for loopful combustion chamber ignition performance test
KR102380073B1 (en) * 2021-10-21 2022-03-29 한국가스안전공사 Safety chamber with cleaning net for recovery of pressure container rupture test residus
KR102380072B1 (en) * 2021-10-21 2022-03-29 한국가스안전공사 Safety chamber for rupture test of pressure container with convenience and rupture test method using thereof sam
KR102507756B1 (en) * 2022-09-22 2023-03-07 (재)한국건설생활환경시험연구원 Test apparatus for sea water pressure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109781421A (en) * 2019-01-16 2019-05-21 中国航发沈阳发动机研究所 A kind of rear measurement group section for loopful combustion chamber ignition performance test
KR102380073B1 (en) * 2021-10-21 2022-03-29 한국가스안전공사 Safety chamber with cleaning net for recovery of pressure container rupture test residus
KR102380072B1 (en) * 2021-10-21 2022-03-29 한국가스안전공사 Safety chamber for rupture test of pressure container with convenience and rupture test method using thereof sam
KR102507756B1 (en) * 2022-09-22 2023-03-07 (재)한국건설생활환경시험연구원 Test apparatus for sea water pressure

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