KR101613540B1 - Leak tester for high pressure component - Google Patents

Abstract

The present invention provides a vacuum cleaner comprising: a first vacuum chamber in which a high-pressure component is housed; A second vacuum chamber installed inside the environmental chamber having a heating unit and a cooling unit and accommodating high-pressure components; A gas suction port and an air suction port are connected to each other and are driven by pneumatic pressure introduced from the air suction port and pressurize the gas introduced from the gas suction port to apply high pressure gas to the high pressure part stored in the first vacuum chamber or the second vacuum chamber A booster to supply; A vacuum pump installed in a vacuum line connected to the first vacuum chamber or the second vacuum chamber and providing vacuum pressure to the first vacuum chamber or the second vacuum chamber; And a detector installed in the vacuum line and detecting whether gas is contained in the air discharged from the first vacuum chamber or the second vacuum chamber.

Description

[0001] LEAK TESTER FOR HIGH PRESSURE COMPONENT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leak testing apparatus for a high-pressure component, and more particularly, to a leak testing apparatus for a high-pressure component that can verify leakage of gas at room temperature or extreme temperature to verify the airtightness of the high-

Generally, a gas container storing compressed gas or liquid gas at a high pressure state is made of thick steel so as to withstand a high pressure state, and can be prevented from leaking or explosion accident.

Such a gas container may be cracked when it is impossible to be visually recognized in its manufacturing process, or cracked when the gas is filled with a high pressure gas after it is expanded due to the high pressure of the compressed gas.

Therefore, in order to maintain the safety of the gas container, it is necessary to always check the performance of the gas container through water pressure and airtightness test after manufacturing. In particular, high pressure water is charged into the gas container so that the pressure in the gas container is about 250 kg / And the presence or absence of cracks in the gas container in the expanded state should be checked.

The performance test of such a gas container includes a process of inspecting the weight of the gas container when the gas container is bottled, a process of attaching water to the gas container, a method of introducing high pressure water into the gas container to inflate the gas container, A process of inspecting the lower surface of the gas container in which the high-pressure water is introduced, a process of draining the water, and drying the water.

However, since most of the performance tests of gas containers are carried out manually by hand, workers are required to carry out inspections for each process while moving the gas containers, so that the inspection time is excessively long, There is a problem that the production price of the container rises.

In addition, since operators move the heavy gas containers, workers are often injured when moving. Also, the process of attaching high-pressure water to the gas container also carries out the operators, so that the safety problems have.

Furthermore, since the test result of the test of the water container and the gas tightness of the gas container depends entirely on the visual acuity of the operator, there is a problem that the accuracy of the performance test may vary depending on the skill of the operator.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Registration No. 10-0531200 (published on Nov. 25, 2005, entitled " Gas Perfomance Test Apparatus ").

In general, the performance test apparatus for a gas container is capable of conducting a leak test of a gas container, but it is difficult to perform a leak test of an ultra-high pressure valve, a fitting or a regulator, and a high pressure component such as an ultra- There is a problem that it is difficult to carry out leakage test of a high-pressure component which must maintain airtightness within an extreme temperature.

Therefore, there is a need for improvement.

An object of the present invention is to provide a leak testing apparatus for a high-pressure component which can verify the leakage performance of a gas at room temperature or extreme temperature to verify the air-tightness performance of a high-pressure part.

The present invention provides a vacuum cleaner comprising: a first vacuum chamber in which a high-pressure component is housed; A second vacuum chamber installed inside the environmental chamber having a heating unit and a cooling unit and accommodating high-pressure components; A gas suction port and an air suction port are connected to each other and are driven by pneumatic pressure introduced from the air suction port and pressurize the gas introduced from the gas suction port to apply high pressure gas to the high pressure part stored in the first vacuum chamber or the second vacuum chamber A booster to supply; A vacuum pump installed in a vacuum line connected to the first vacuum chamber or the second vacuum chamber and providing vacuum pressure to the first vacuum chamber or the second vacuum chamber; And a detector installed in the vacuum line and detecting whether gas is contained in the air discharged from the first vacuum chamber or the second vacuum chamber.

Further, the first vacuum chamber of the present invention is installed in the first storage portion of the cabinet having the first storage portion and the second storage portion, and the first storage chamber is provided with a lift chamber A cylinder is installed, and the vacuum pump and the detector are installed in the second housing part.

In addition, a first pressurizing valve, a second pressurizing valve, a pressurizing discharge valve, a low-pressure manometer, and a high-pressure manometer are installed on the pressurizing line connecting the booster with the first vacuum chamber or the second vacuum chamber. do.

The pressurizing line of the present invention may further comprise: a first pressurizing line for supplying a high pressure to the high-pressure part at a first set value or higher; And a second pressure line for providing a high pressure of a second set value higher than the first set value to the high pressure part.

Further, the vacuum line of the present invention is characterized in that a detection line to which the detector is connected, a vacuum valve, a vacuum discharge valve, and a vacuum pressure gauge are provided.

The water leakage test apparatus for high-pressure parts according to the present invention can perform leak test at a temperature or an extreme temperature by using one vacuum pump and one detector, so that various leakage tests can be easily performed, It is possible to reduce the number of parts of the test apparatus required and to reduce the time and cost required for the leakage test.

1 is a configuration diagram showing a water leakage test apparatus for a high-pressure part according to an embodiment of the present invention.
2 is a view showing a vacuum chamber of a leak testing apparatus for a high-pressure part according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a leak testing apparatus for high-pressure components according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a configuration diagram showing a leak testing apparatus for a high-pressure part according to an embodiment of the present invention, and FIG. 2 is a view showing a vacuum chamber of a leak testing apparatus for a high-pressure part according to an embodiment of the present invention.

1 and 2, the apparatus for testing a nasal portion for high-pressure parts according to an embodiment of the present invention includes a first vacuum chamber 10 in which high-pressure components are housed, a heating unit 34 and a cooling unit 36, A second vacuum chamber 30 provided inside the environmental chamber 32 provided with the high-pressure components and accommodating the high-pressure components, and a gas supply port 82 and an air suction port 84 connected to the air suction port 84, A booster 80 which is driven by the gas suction port 82 and supplies a high pressure gas to the high pressure part accommodated in the first vacuum chamber 10 or the second vacuum chamber 30 by pressurizing the gas introduced from the gas suction port 82, A vacuum pump 52 installed in a vacuum line 70 connected to the vacuum chamber 10 or the second vacuum chamber 30 and providing a vacuum to the first vacuum chamber 10 or the second vacuum chamber 30, And a detector (not shown) installed in the vacuum line 70 and detecting whether the gas is contained in the air discharged from the first vacuum chamber 10 or the second vacuum chamber 30 54).

When an operator performs a nuance test of a high-pressure part such as an ultra-high pressure valve, a fitting, or a regulator in a room temperature state, the high-pressure part is housed in the first vacuum chamber 10, and after the high-pressure part and the pressure line 90 are connected, .

When the test operation is started, the booster 80 is driven by the air pressure supplied from the air suction port 84, and the gas supplied through the gas suction port 82 is compressed to the high-pressure component stored in the first vacuum chamber 10 High-pressure gas is filled.

At this time, since the vacuum pump 52 is operated to supply vacuum pressure less than the set value in the first vacuum chamber 10, the air in the first vacuum chamber 10 is discharged along the vacuum line 70, The gas contained in the air can be detected by the detector 54 installed in the detection line 77 connected to the vacuum line 70.

By the above-described test, it is possible to detect the leakage of the high-pressure part, so that the airtightness of the high-pressure part such as the ultra high-pressure valve, the fitting or the regulator can be inspected.

The first vacuum chamber 10 is installed in the first storage portion 14 of the cabinet 12 having the first storage portion 14 and the second storage portion 16, A lifting cylinder 18 for opening and closing the first vacuum chamber 10 is provided and a vacuum pump 52 and a detector 54 are installed in the second housing 16.

The cabinet 12 is divided into an upper portion and a lower portion, and a first accommodating portion 14 is provided at an upper portion and a second accommodating portion 16 is provided at a lower portion.

A door is provided in the first accommodating portion 14 so that the operator can open the door to house the high-pressure parts in the first vacuum chamber 10. By driving the elevating cylinder 18, the first vacuum chamber 10 The worker moves the first vacuum chamber 10 down by driving the elevating cylinder 18 after installing the high pressure part on the seating table 14a provided in the first storage part 14 so as to install the high pressure part .

The second vacuum chamber 30 is installed in the environmental chamber 32 opened and closed by a door so as to be opened and closed by a separate door and the environmental chamber 32 is provided with a heating unit 34 and a cooling unit 36 It is possible to implement the extreme temperature, that is, a temperature of -40 degrees C to 85 degrees Celsius inside the environmental chamber 32.

Here, the heating unit 34 and the cooling unit 36 can be easily carried out by those skilled in the art who are aware of the technical structure of the present invention, and therefore, detailed drawings and explanations thereof will be omitted.

A first pressurization valve 92, a second pressurization valve 94, a pressurization discharge valve 96 (see FIG. 1), a pressurization line 90 connecting the booster 80 to the first vacuum chamber 10 or the second vacuum chamber 30, A low-pressure manometer 97, and a high-pressure manometer 98 are installed.

Therefore, the first pressurizing valve 92 and the second pressurizing valve 94 can be opened to perform the pressurizing operation. After the leak test is completed, the first pressurizing valve 92 and the second pressurizing valve 94 are closed The gas having undergone the pressurization operation is discharged through the branch line in which the pressurization discharge valve 96 is installed.

The pressure line 90 also includes a first pressure line 90 that provides a high pressure above the first set point to the high pressure component and a second pressure line 90 that provides a high pressure of the second set point, Line 90. < / RTI >

Therefore, by the operation of the operator, it is possible to perform the pressurizing operation while selectively using the first pressurizing line 90 of 5 MPa or the second pressurizing line 90 of 100 MPa.

When the pressurizing operation is proceeded by the first pressurizing line 90, the pressurizing pressure is measured by the low-pressure manometer 97. When the pressurizing operation is proceeded by the second pressurizing line 90, The pressurizing pressure is measured.

In addition, the pressing operation can be repeated by a predetermined number of times by the control unit which transmits / receives the driving signal or the sensing signal to / from the booster 80, the vacuum pump 52 and the detector 54.

Therefore, leak test of high-pressure parts can be performed at room temperature, extreme temperature, low-pressure state, or high-pressure state.

The vacuum line 70 is provided with a detection line 77 to which a detector 54 is connected and a vacuum valve 72, a vacuum discharge valve 74 and a vacuum pressure gage 76, It is possible to determine whether or not the gas is contained in the air inside the first vacuum chamber 10 or the second vacuum chamber 30 to be discharged and to release the vacuum pressure through the vacuum discharge valve 74 after the leakage test is completed .

This makes it possible to provide a leakage testing apparatus for high-pressure components that can verify the gas-tight performance of a high-pressure part by testing whether or not the gas leaks at room temperature or extreme temperature.

Reference numeral 78 denotes a detection valve 78 provided on the detection line 77.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

Further, although the water leakage testing apparatus for high-pressure parts has been described as an example, this is merely an example, and the testing apparatus of the present invention can be used for products other than the leak testing apparatus for high-pressure components.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: first vacuum chamber 12: cabinet
14: first receiving portion 14a:
16: second accommodating portion 18: lifting cylinder
30: second chamber 32: environmental chamber
34: heating section 36: cooling section
52: Vacuum pump 54: Detector
70: Vacuum line 72: Vacuum valve
74: Vacuum discharge valve 76: Vacuum pressure gauge
77: detection line 78: detection valve
80: booster 82: gas inlet
84: air inlet 90: pressure line
92: first pressurizing valve 94: second pressurizing valve
96: Pressure discharge valve 97: Low pressure manometer
98: High pressure manometer

Claims (5)

A first vacuum chamber in which high-pressure components are accommodated;
A second vacuum chamber installed inside the environmental chamber having a heating unit and a cooling unit and accommodating high-pressure components;
A gas suction port and an air suction port are connected to each other and are driven by pneumatic pressure introduced from the air suction port and pressurize the gas introduced from the gas suction port to apply high pressure gas to the high pressure part stored in the first vacuum chamber or the second vacuum chamber A booster to supply;
A vacuum pump installed in a vacuum line connected to the first vacuum chamber or the second vacuum chamber and providing vacuum pressure to the first vacuum chamber or the second vacuum chamber; And
And a detector installed in the vacuum line and detecting whether gas is contained in the air discharged from the first vacuum chamber or the second vacuum chamber,
The first vacuum chamber is installed in the first storage portion of the cabinet having the first storage portion and the second storage portion, and the first storage portion is provided with a lifting cylinder for opening and closing the first vacuum chamber while lifting the first vacuum chamber, Wherein the vacuum pump and the detector are installed in the second housing part.
delete The method according to claim 1,
Wherein a pressure line connecting the booster and the first vacuum chamber or the second vacuum chamber is provided with a first pressure valve, a second pressure valve, a pressure discharge valve, a low pressure gauge, and a high pressure gauge. Test equipment.
The apparatus as claimed in claim 3,
A first pressurizing line for providing a high pressure to the high-pressure component at a first set point or higher; And
And a second pressure line for providing a high pressure of a second set value higher than the first set value to the high pressure component.
The method according to claim 1,
Wherein the vacuum line is provided with a detection line to which the detector is connected, a vacuum valve, a vacuum discharge valve, and a vacuum pressure gauge.

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