KR100889235B1 - Test equipment for internal pressure of high pressure gas cylinder - Google Patents

Abstract

The present invention relates to a high pressure gas container internal pressure test apparatus, in particular, a pressure resistance test unit 150 for testing the internal pressure by filling the high pressure gas container (8); Transfer unit 110 for horizontally moving the high-pressure gas container 8 lying down; And a drainage unit (170) for draining the water filled in the high pressure gas container (8). Water tank 153 for filling the pressure test water in the; The neck of the high pressure gas container 8 is located above the water pump 153 and is spaced apart from the high pressure gas container 8 after filling the pressure test water into the inside of the high pressure gas container 8. A coupling 154 coupled to the portion 8a; And a high pressure gas container 8 having a coupling 154 coupled thereto to be submerged or discharged, and an internal pressure test tank 155 having an effluent detecting means installed at one side thereof, wherein the drainage unit 170 is subjected to an internal pressure test. A support 173 in which the completed high-pressure gas container 8 is horizontally placed; And a platform drive unit 177 which rotates the platform 173 at a predetermined angle so that the neck portion 8a of the high pressure gas container 8 faces the ground so that the pressure-resistant test water in the high pressure gas container 8 can be discharged. It is made, including, the conveying unit 110 is a conveyor conveyor roller for conveying the high-pressure gas container (8) in the longitudinal direction to the front of the water tank 155 of the pressure-resistant test unit 150 before the pressure test in the lying state (111a); A take-out conveyor roller 111b for transferring the high-pressure gas container 8 in the laid-down state after the internal pressure test to the settling platform 173 of the drainage unit 170 in the longitudinal direction; And a high pressure gas container 8 installed between the inlet conveyor rollers 111a and the outlet conveyor rollers 111b installed in parallel and placed on the inlet conveyor rollers 111a after the internal pressure test. Lift (111c); and the high-pressure gas container (8) before the pressure test carried out in a laid-down state between the inlet conveyor roller (111a) and the pressure test unit 150 in a 90-degree rotational motion The neck portion 8a of the high pressure gas container 8 is vertically positioned so that the neck portion 8a is directed upward and the bottom part is located directly above the water tank 155. The center clamping unit 130 lying on the inlet conveyor roller 111a by the movement is installed, the pressure resistance test unit 150, the center clamping unit 130, the transfer unit 110 and the drain unit 170 is 1 Modified and installed in line in the order listed In order to minimize the installation space, it is a technical point that a plurality of tanks are installed adjacent to each other in parallel. Unmanned automation is possible to increase the production rate, reduce the production cost, and perform mass inspection on a small site. It has the effect of safe, fast and accurate inspection.

High pressure gas container, pressure test, pressure test, automatic, pressure test water

Description

Test equipment for internal pressure of high pressure gas cylinder

1 is a plan view of the high-pressure gas container internal pressure test apparatus according to the present invention,

Figure 2 is a front view of the high pressure gas container internal pressure test apparatus according to the present invention,

Figure 3 is a side view of the transfer unit of the high-pressure gas container internal pressure test apparatus according to the present invention,

4a to 4c is a view for explaining the driving of the center clamping unit of the high-pressure gas container internal pressure test apparatus according to the present invention,

Figure 5 is a side pressure test unit of the high pressure gas container internal pressure test apparatus according to the present invention,

6 is a side view of the drainage unit of the high-pressure gas container internal pressure test apparatus according to the present invention;

7a to 7f is a view for explaining the operation of the high-pressure gas container internal pressure test apparatus according to the present invention,

8 to 11 is a real product picture of the high-pressure gas container internal pressure test apparatus according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

8: High pressure gas container 8a: neck part

100: high pressure gas container internal pressure test device 110: transfer unit

111: conveyor roller 111a: incoming conveyor roller

111b: take-out conveyor roller 111c: switching lift

111ca: lift 111cb: lift driven cylinder

112, 152: support 113: rail

114: slider 115: magnet

116: drive unit drive unit 116a: magnet lifting cylinder

116b: slider drive motor 117: loading plate

118: unloading plate 130: center clamping unit

131, 151, 171: base 133, 173: set rest

135, 175: hinge 137: clamp

138: center clamping unit drive unit 138a: clamper drive unit

138b, 177: Settlement Drive 139a, 139c: Rack Gear

139b: Pinion gear 150: pressure test unit

153: Plunger 154: Coupling

155: water pressure test tank 156: pressure test unit drive unit

156a: coupling drive part 156b: water pump drive part

170: drainage unit 179: drainage

The present invention relates to a high pressure gas container internal pressure test apparatus, and more particularly, to a high pressure gas container internal pressure test apparatus capable of automating the internal pressure test process of the high pressure gas container.

In general, a high pressure gas container capable of compressing and storing various gases formed in a gas state at a high pressure therein is formed by heating a container material and forging a heated portion with a punch or by pressing with a roller. The gas container is shipped after a predetermined pressure test.

At this time, the above-mentioned pressure test is an essential process for preventing the bad high pressure gas container from being sold to the market and causing an accident to the consumer. The pressure test is mainly performed in the state where the pressure test water is filled inside the high pressure gas container. Submerged in the water tank is applied to the pressure inside the high pressure gas vessel, that is, a method of checking the amount of water flowing out of the pressure test tank as the high pressure gas container expands.

That is, the pressure resistance test of the high pressure gas container may include filling the high pressure gas container with the pressure resistant test water; Coupling a coupling capable of applying hydraulic pressure to the high pressure gas container; Submerging the high pressure gas container with the coupling into the pressure test tank and when the inspection is completed, the high pressure gas container is discharged from the pressure test tank, and the combined coupling is separated. A worker who can perform well is required.

However, according to the conventional high pressure gas container internal pressure test method as described above, all the steps are made manually by manpower, there is a problem that the production rate and accuracy can vary depending on the skill of the operator, labor costs Therefore, there is a problem that the production cost rises.

In particular, if the worker is unskilled, the exact amount of pressure-resistant filling is not made or the coupling is loose, there is a problem that can not be made accurate inspection can lead to safety accidents.

The present invention has been made to solve the above-described problems, by providing a center clamping unit, a transfer unit and a drainage unit in the pressure test unit for automatically operating the water pump and the coupling to produce unmanned automation of the pressure test process is possible The purpose of the present invention is to provide a high pressure gas container internal pressure test apparatus that can increase the rate, reduce the production cost, perform mass inspection on a small site, and enable safe, fast and accurate inspection.

High pressure gas container internal pressure test apparatus for achieving the above object is a high pressure gas for testing the internal pressure of the high pressure gas container by submerging the high pressure gas container filled with the pressure test water in the pressure test tank and applying pressure to the inside of the high pressure gas container. Claims 1. An internal pressure test apparatus comprising: a conveying unit having a conveyor roller for horizontally moving a high pressure gas container in a flat state; It is installed on one side of the transfer unit, and the high-pressure gas container before the pressure test transferred in the state laid down by the transfer unit is turned vertically by rotating the neck portion of the high-pressure gas container toward the air. Center clamping unit lying on the roller: It is installed on one side of the center clamping unit, and fills the pressure test water in the vertical high pressure gas container, and couples the coupling to the neck part of the high pressure gas container filled with the pressure test water. Submerged in a test tank to test the internal pressure of the high-pressure gas container, and then the pressure-resistant test unit for discharging the high-pressure gas container after the test is completed from the pressure test tank; And a drainage unit installed at the other side of the transfer unit and discharging the pressure-tested water filled in the high-pressure gas container after rotating the high-pressure gas container conveyed by the conveyor roller after completion of the pressure test toward the ground. It is done by

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the high-pressure gas container internal pressure test apparatus of the present invention.

1 is a plan view of a high pressure gas container internal pressure test apparatus according to the present invention, Figure 2 is a front view of the high pressure gas container internal pressure test apparatus according to the present invention.

As shown in FIGS. 1 and 2, the high pressure gas container internal pressure test apparatus 100 according to the present invention submerses the high pressure gas container 8 filled with the pressure test water in the pressure test tank 155 and then the high pressure gas container ( 8) is a device for testing the internal pressure of the high-pressure gas container (8) by applying pressure to the inside of the transfer unit (110), the center clamping unit (130), the internal pressure test unit (150) and the drainage unit (170). Each unit is provided with a control means such as a microcomputer and is automatically controlled in association with peripheral units according to a predetermined program.

First, the transfer unit 110 is a means for horizontally moving the high pressure gas container 8 transferred from another device between the units in a lying state, as shown in FIG. 3, horizontally moving the high pressure gas container 8. Conveyor roller 111 to make; Support 112 is installed on the left and right of the conveyor roller 111; A rail 113 coupled to an upper end of both supports 112 across the top of the conveyor roller 111; A slider 114 moving on the rail 113; The magnet 115 is coupled to the lower portion of the slider 114, the high-pressure gas container 8 is attached or detached by a magnetic force; And a transfer unit driver 116 to move the slider 114 on the rail 113 and to lift the magnet 115.

At this time, the conveyor roller 111 transfers the high pressure gas container 8 before the pressure test to the center clamping unit 130 and the high pressure gas container 8 after the pressure test to the center clamping unit 130. ) Is divided into a drawing conveyor roller 111b for moving to the drainage unit 170, and the high pressure gas container 8 of the drawing conveyor roller 111a is drawn out between the drawing conveyor roller 111a and the drawing conveyor roller 111b. The switching lift 111c for moving to the roller 111b is provided.

The above-mentioned shift lift 111c is achieved by the lift 111ca and the lift drive cylinder 111cb which are generally used in the art.

In addition, the magnet 115 is composed of a case and a permanent magnet which is provided inside the case and in contact with the surface of the high-pressure gas container 8 is moved up and down, the transfer unit drive unit 116 to move the permanent magnet and the case up and down as needed A magnet drive cylinder 116a for moving and a slider drive motor 116b for moving the slider 114 on the rail 113 are achieved.

Reference numeral 117 in the drawing is a loading plate on which the high pressure gas container 8 transferred from another apparatus is loaded, and 118 is an unloading plate on which the high pressure gas container 8 in which all processes related to the internal pressure test are completed is loaded.

Therefore, the transfer unit 110 automatically transfers the high pressure gas container 8 according to a predetermined program, and transfers the high pressure gas container 8 transferred from another device of the preceding process and loaded on the loading plate 117 to the magnet ( 115) is transferred to a predetermined inlet conveyor roller (111a), and the high-pressure gas container (8) is completed, all the pressure test process after the transfer to the withdrawal conveyor roller (111b) using the conversion lift (111c). The completed high-pressure gas container 8 is loaded on the unloading plate 118 using the magnet 115 again.

Next, the center clamping unit 130 is installed at one side of the transfer unit 110 and the neck portion of the high-pressure gas container 8 is connected to the high-pressure gas container 8 before the internal pressure test, which is transferred in a state laid down by the transfer unit 110. (8a) is rotated to face upright and vertically, and then the high-pressure gas container (8) having completed the pressure test is a means for laying down on the conveyor roller 111, between the transfer unit 110 and the pressure test unit 150. Base 131 installed in; A hinge 133 hinged to the base 131 and on which the high pressure gas container 8 transferred by the transfer unit 110 is placed; Is coupled to one side of the settable 133, when the high-pressure gas container (8) is clamped, the cross section is made of '<' and '>' shape so that the central axis of the high-pressure gas container (8) is always located at a constant place. Pair of clampers 137; A stabilization drive unit 138b fixed to the base 131 to rotate the stabilization band 133 around the hinge 135; And a clamper driver 138a fixed to the support 133 to drive the clamper 137.

Meanwhile, according to the clamper 137 of the present invention, the center of the high pressure gas container 8 is always positioned at a constant position regardless of the size of the high pressure gas container 8, as shown in FIGS. 4A to 4C. The clamper 137 may be driven by gear coupling with the clamper driver 138a. Rack gears 139a and 139c are formed on the upper surface of the clamper 137 and the end of the clamper driver 138a, and each rack gear ( Hemispherical pinion gear 139b is coupled between 139a and 139c.

That is, the pinion gear 139b rotates as the rack gear 139a formed at the end of the clamper drive unit 138a moves up and down, and the clamper 137 horizontally moves horizontally as the pinion gear 139b rotates. As shown in FIG. 4C, the high-pressure gas container 8 is clamped at the center of the clamper 137.

Therefore, the high-pressure gas container 8 delivered through the inlet conveyor roller 111 is clamped to the clamp 137, and then, as the stand holder 138b is operated, the stand 133 rotates around the hinge 135 as the axis. Rotate the high-pressure gas container (8) to stand vertically. At this time, the neck portion 8a of the high pressure gas container 8 is always located directly below the water pump 153 which will be described later. It is achieved by the clamp structure of the present invention.

Next, the pressure test unit 150 is installed at one side of the center clamping unit 130, and filled the pressure test water in the vertical high-pressure gas container (8), the neck of the high-pressure gas container (8) filled with the pressure test water. After coupling the coupling 154 to the part (8a) and submerged in the pressure test tank (155) to test the internal pressure of the high-pressure gas container (8), and then the high-pressure gas container (8), the test is completed, the pressure test tank Means to exit from 155.

5 is a side view of the internal pressure test unit of the high pressure gas container internal pressure test apparatus according to the present invention.

As shown in Figure 5, the pressure resistance test unit of the high-pressure gas container internal pressure test apparatus according to the present invention is a base 151; A support 152 installed on the base 151; It is installed to be movable on one side of the support 152, located directly above the neck portion 8a of the high-pressure gas container (8), which is erected vertically by the center clamping unit 130, the inside of the high-pressure gas container (8) Water tank 153 for filling the pressure test water in the; It is installed on one side of the support 152, located directly above the water dispenser 153, after the water dispenser 153 fills the pressure-resistant test water in the inside of the high pressure gas container 8, the high pressure gas container 8 A coupling 154 coupled to the neck portion 8a of the high pressure gas container 8 when separated from the coupling; High pressure gas container (8) coupled to the coupling 154 is submerged or discharged, the pressure test tank 155 for the outflow water detection means is installed on one side; And a pressure resistance test unit driving unit 156 for driving the water pump 153 and the coupling 154.

In the above-described configuration, the water pump 153 and the coupling 154 are achieved by the conventional water pump and the coupling, and the pressure resistant test unit driver 156 supplies the pressure resistant test water by a predetermined amount to the water pump 153. A water pump drive unit 156b including a motor-gear set which moves up and down and left and right with respect to the pump and the support 152; And a coupling drive unit 156a including a pump and a motor-gear set that moves up and down relative to the support 152 to provide the hydraulic pressure necessary for the pressure resistance test to the coupling 154.

Therefore, when the high pressure gas container 8 is transmitted by the center clamping unit 130, the pressure resistance test unit driving unit 156 drives the water dispenser 153 to inject the pressure resistant test water into the high pressure gas container 8 and then the internal pressure. After the test, the water dispenser 153 is separated from the high pressure gas container 8, and when the water dispenser 153 is separated, the coupling drive unit 156a is driven to connect the coupling 154 to the neck portion of the high pressure gas container 8. To (8a). At this time, the center clamping unit 130 releases the clamping of the high-pressure gas container (8).

Thereafter, the coupling 154 is lowered to submerge the high pressure gas container 8 in the pressure test tank 155 and pressurize the high pressure gas container 8 through the coupling 154 to test the internal pressure. The ring 154 is raised to eject the high pressure gas container 8 from the pressure test tank 155.

When the high-pressure gas container 8 is discharged from the pressure test tank 155, the above-described center clamping unit 130 is clamped again, and when the clamping is completed, the coupling 154 is the neck portion 8a of the high-pressure gas container 8; ).

Next, the drainage unit 170 is installed at the other side of the transfer unit 110, and the internal pressure test is completed to rotate the high-pressure gas container 8 transferred by the conveyor roller 111 so that the neck portion 8a faces the ground. It is a means for discharging the pressure-resistant test water filled in the high-pressure gas container (8).

6 is a side view of the drainage unit of the high-pressure gas container internal pressure test apparatus according to the present invention.

As shown in Figure 6, the drainage unit of the high-pressure gas container internal pressure test apparatus according to the present invention includes a base 171 installed on the other side of the transfer unit 110; Hinge 175 is coupled to the base 171, the pressure rest is completed the pressure test (173) in which the high-pressure gas container (8) transferred through the conveyor roller 111 is placed; And a stand driver 177 which rotates the stand 173 at a predetermined angle so that the withstand pressure test water can be discharged from the high-pressure gas container 8.

Therefore, when the high pressure gas container 8 of which the pressure resistance is completed is transferred through the drawing conveyor roller 111b, the high pressure gas container 8 is placed on the support 173, and the hinge drive unit 177 drives the hinge. By rotating the support 173 by a predetermined angle relative to the (175) to the pressure-resistant test water filled in the high-pressure gas container (8) to be discharged by gravity.

Reference numeral 179 in the drawings is a drainage path through which the pressure resistant test water filled in the high pressure gas container 8 is discharged.

7A to 7F are views for explaining the operation of the high-pressure gas container internal pressure test apparatus according to the present invention.

First, FIG. 7A shows that the high pressure gas container 8 is laid down as the transfer unit 110 moves the high pressure gas container 8 loaded on the loading plate 117 to the inlet conveyor roller 111 using the magnet 115. It shows the state transferred to the center clamping unit 130 along the conveyor roller 111 in a true state.

Next, FIG. 7B illustrates a state in which the high pressure gas container 8 is vertically driven by driving the settling drive unit 138b of the center clamping unit 130 in the state of FIG. 7A. At this time, the neck portion 8a of the high pressure gas container 8 is automatically located directly below the water pump 153.

Next, FIG. 7C shows that after the withstand pressure test water is injected into the high pressure gas container 8 by the withstand pressure test water container 153 in the state of FIG. 7B, the water pump 153 is spaced apart and the coupling 154 is a high pressure gas container. The state couple | bonded with the neck part 8a of (8) is shown.

Next, in FIG. 7D, the center clamping unit 130 releases the clamping in the state of FIG. 7C, is spaced apart from the high pressure gas container 8, and then the coupling 154 is lowered to the high pressure gas container 8 to test the internal pressure test tank 155. Indicates a submerged state.

Next, FIG. 7E shows that the pressure resistance test is completed in the state of FIG. 7D, the coupling 154 is raised to eject the high pressure gas container 8 from the pressure test tank 155, and the center clamping unit 130 is driven to drive the high pressure gas. The state in which the container 8 is clamped and then the coupling 154 is disengaged is shown.

Next, FIG. 7F illustrates the operation of the center clamping unit 130 in the state of FIG. 7D to move the high-pressure gas container 8 having the internal pressure test to the take-out conveyor roller 111 by using the shift lift 111c, and then take out the conveyor roller ( In the high pressure gas container 8, the drainage unit 170 drives the settling drive unit 177 to rotate the settling unit 173 while being transferred to the settling unit 173 of the draining unit 170 by 111. Indicates the discharged pressure test water that has been filled.

Therefore, according to the present invention, the high pressure gas container 8 transferred from another device is automatically transferred to the center clamping unit 130, the pressure resistance test unit 150, and the drainage unit 170 through the transfer unit 110, respectively. The unit automatically performs the work in conjunction with other units, allowing unattended automation of the pressure resistance test process.

8 to 12 is a real product picture of the high pressure gas container internal pressure test apparatus according to the present invention, Figure 8 is a picture showing the entire high pressure gas container internal pressure test apparatus 100 of the present invention, Figure 9 is a pressure resistance test unit ( 150 is an enlarged photograph, FIG. 10 is a photograph showing an enlarged portion of the pressure test tank 155, and FIG. 11 is a photograph showing a portion of the drainage unit 170.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages constituting the claims of the present invention will be described below. It should be appreciated by those skilled in the art that the conception and specific embodiments of the invention disclosed may be readily used as a basis for designing or modifying other structures for carrying out similar purposes to the invention.

In addition, the concept and embodiment of the invention disclosed in the present invention as examples for such modification or altered equivalent structure by those skilled in the art as a basis for modifying or designing to other structures for carrying out the same purposes of the present invention. For example, the gear and chain sets, which are the power transmission means, may be changed into pulleys and belt sets, and various changes, substitutions, and changes can be made without departing from the spirit or scope of the invention described in the claims.

According to the high pressure gas container internal pressure test apparatus of the present invention as described above, by providing a center clamping unit, a transfer unit, and a drainage unit in the pressure test unit for automatically operating the water pump and the coupling, unmanned automation of the pressure test process It is possible to increase the production rate, reduce the production cost, perform mass inspection on a small site, and have the effect of ensuring safe, fast and accurate inspection.

Claims (7)

An internal pressure test unit 150 for testing the internal pressure by filling water with the high pressure gas container 8; Transfer unit 110 for horizontally moving the high-pressure gas container 8 lying down; In the high pressure gas container internal pressure test apparatus comprising a; and a drainage unit (170) for draining the water filled in the high pressure gas container (8), The pressure test unit 150 includes a water dispenser 153 for filling the pressure test water into the high-pressure gas container 8; The neck of the high pressure gas container 8 is located above the water pump 153 and is spaced apart from the high pressure gas container 8 after filling the pressure test water into the inside of the high pressure gas container 8. A coupling 154 coupled to the portion 8a; And a high pressure gas container (8) in which the coupling (154) is combined is submerged or exited, and a pressure test tank (155) having an effluent detecting means installed at one side thereof. The drainage unit 170 includes a support 173 in which the high pressure gas container 8 in which the pressure resistance test is completed is placed horizontally; And a platform drive unit 177 which rotates the platform 173 at a predetermined angle so that the neck portion 8a of the high pressure gas container 8 faces the ground so that the pressure-resistant test water in the high pressure gas container 8 can be discharged. Including; The conveying unit 110 includes an incoming conveyor roller 111a for conveying the high-pressure gas container 8 in the laid state to the front of the water tank 155 of the pressure resistant test unit 150 in the longitudinal direction; A take-out conveyor roller 111b for transferring the high-pressure gas container 8 in the laid-down state after the internal pressure test to the settling platform 173 of the drainage unit 170 in the longitudinal direction; And a high pressure gas container 8 installed between the inlet conveyor rollers 111a and the outlet conveyor rollers 111b installed in parallel and placed on the inlet conveyor rollers 111a after the internal pressure test, to move to the outlet conveyor rollers 111b. A lift 111c; Neck portion of the high-pressure gas container 8 by one 90 ° rotational movement of the high-pressure gas container 8 before the pressure test carried out lying down between the inlet conveyor roller 111a and the pressure resistance test unit 150 (8a) is upright and the bottom is placed vertically so as to be located directly above the water tank 155, the high-pressure gas container (8) after the internal pressure test is completed on the inlet conveyor roller (111a) by one 90 ° rotational movement Laying center clamping unit 130 is installed, The pressure test unit 150, the center clamping unit 130, the transfer unit 110 and the drainage unit 170 is installed in a straight line in the order described in one set, a plurality of jaws in parallel to minimize the installation space High pressure gas container internal pressure test apparatus, characterized in that the adjacent installation. The method of claim 1, The transfer unit 110 A support 112 provided on the outer side of the outermost drawing conveyor roller 111a and the outermost drawing conveyor roller 111b; A rail 113 coupled to an upper end of both supports 112 across the top of the inlet conveyor roller 111a and the outlet conveyor roller 111b; A slider 114 moving on the rail 113; The magnet 115 is coupled to the lower portion of the slider 114, the high-pressure gas container 8 is attached or detached by a magnetic force; And The slider 114 is moved on the rail 113, and when the magnet 115 is raised and lowered transfer unit drive unit 116; high pressure gas container internal pressure test apparatus, characterized in that further comprises. The method of claim 2, The magnet 115 is made of a case that is in contact with the surface of the high-pressure gas container (8) and a permanent magnet provided in the case and moved up and down, The transfer unit driver 116 is composed of a magnet lifting cylinder 116a for moving the permanent magnet and the case up and down as necessary, and a slider drive motor 116b for moving the slider 114 on the rail 113. High pressure gas container internal pressure test apparatus. The method of claim 1, The center clamping unit 130 is A base 131 installed between the inlet conveyor roller 111a and the pressure resistance test unit 150; A hinge 133 which is hinged to the base 131 and on which the high-pressure gas container 8 transferred by the inlet conveyor roller 111a is placed; Is coupled to one side of the settable 133, when the high-pressure gas container (8) is clamped, the cross section is made of '<' and '>' shape so that the central axis of the high-pressure gas container (8) is always located at a constant place. Pair of clampers 137; A fixation drive unit 138b fixed to the base 131 to rotate the hinge 133 around the hinge; And A high pressure gas container internal pressure test apparatus, comprising: a clamper driving unit (138a) fixed to the support 133 to drive the clamper (137). The method of claim 1, The pressure resistance test unit 150 is Base 151; A support 152 installed on the base 151; It is installed to be movable on one side of the support 152, located directly above the neck portion 8a of the high-pressure gas container (8), which is erected vertically by the center clamping unit 130, the inside of the high-pressure gas container (8) Water tank 153 for filling the pressure test water in the; It is installed on one side of the support 152, located directly above the water dispenser 153, after the water dispenser 153 fills the pressure-resistant test water in the inside of the high pressure gas container 8, the high pressure gas container 8 A coupling 154 coupled to the neck portion 8a of the high pressure gas container 8 when spaced apart from the coupling; High pressure gas container (8) coupled to the coupling 154 is submerged or discharged, the pressure test tank 155 for the outflow water detection means is installed on one side; And High pressure gas container internal pressure test apparatus comprising a; a high pressure gas test unit drive unit 156 for driving the water pump 153 and the coupling 154. The method of claim 5, The pressure resistance test unit driving unit 156 is A water pump drive unit 156b including a pump for supplying the pressure test water to the water pump 153 and a motor-gear set that moves up and down and left and right with respect to the support 152; And A high pressure gas container comprising a coupling drive unit 156a including a pump and a motor-gear set configured to move up and down with respect to the support 152 with a coupling 154 providing a water pressure necessary for a pressure resistance test. Pressure test device. delete

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