JPH09242988A - Pressure proof test device for high pressure gas vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically conduct a pressure proof test of a high pressure gas vessel with a reduce manpower by providing a carrying device which grips the high pressure gas vessel with a chuck and carries it from a waiting position to a testing position and a testing device for conducting the pressure proof test of the high pressure gas vessel inserted into a water tank by a loading- unloading device. SOLUTION: Bombs 120 to be inspected are horizontally placed on a carrier magazine 70 and the bomb at the forward end is lifted by a cylinder 75 and then is placed on a carrier table 72. Then, the carrier table 72 is slid toward a chucking device by the cylinder 75 and then the body of the bomb is gripped by a gripping tool and then the chucking device is turned 90 deg. to vertically hold the bomb. A water nozzle 46 is lowered in this state and is inserted into the bomb 120 and water is poured and then a joint is screwed into the mouth of the bomb 120 and the bomb 120 supported by the joint is inserted into a water tank 1 filled with water and water is pressed into the bomb 120 by the water nozzle 43, whereby a pressure proof test is conducted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure resistance tester for performing a pressure resistance test on a high pressure gas container such as an LPG gas cylinder.

[0002]

2. Description of the Related Art High-pressure gas containers (hereinafter referred to as "cylinders").
Is obliged to perform a pressure resistance test at every cycle specified by law. This pressure resistance test is carried out by charging a cylinder into a water jacket filled with water, applying water pressure to the cylinder and measuring the expansion thereof.

[0003]

In this pressure resistance test, an operator conventionally suspends a cylinder, which is an object, by a chain block and conveys it to a test position, and also manually attaches and detaches the nozzle. However, it is inefficient to carry out the transportation of the cylinder and the attachment / detachment of the nozzles by humans in this way, and the labor load on the operator is heavy. Therefore, it is an object of the present invention to provide a test apparatus capable of easily and efficiently performing a pressure resistance test of a high pressure gas container.

[0004]

In order to solve the above problems, the present invention employs the following configurations. That is, the high-pressure gas container pressure resistance test apparatus according to the present invention is a carry-in device for carrying in a high-pressure gas container, and a chuck is used to grip the high-pressure gas container carried to a predetermined standby position by the carry-in device and perform a test from the standby position. A transfer device for moving to the position, a nozzle attached to the high-pressure gas container transferred to the test position, inserted into the water jacket, and a device for taking out the high-pressure gas container after the test from the water jacket, and an insertion device into the water jacket. The high-pressure gas container is equipped with a test device for performing a pressure resistance test and a carry-out device for carrying out the high-pressure gas container taken out of the water bottle to a predetermined carry-out position after the test.

A pressure tester for a high pressure gas container according to the present invention is
Since it is possible to automatically perform a pressure resistance test simply by supplying a high-pressure gas container, which is an object to be tested, to the loading position, it is possible to save labor and improve efficiency as compared with a conventional test apparatus of the same type. Further, since the high-pressure gas container is grasped by the chuck and the nozzle is attached / detached, and the nozzle is inserted / removed in / from the water jacket, the test can be performed as it is even on an unstable cylinder having a round bottom. Hereinafter, embodiments of the present invention will be specifically described.
Needless to say, the present invention is not limited to this aspect.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The drawings specifically show the embodiments of the present invention, which will be described in detail below. This pressure resistance tester is equipped with a water jacket 1 which forms the main body of the tester at the center.
Is installed, and the column 2 is erected on the back surface thereof.

A base 4 is provided below the water jacket 1, and the base is installed in a pit 5 provided on the floor.
At the lower end of the water jacket 1, a mouthpiece 7 for water injection and a mouthpiece 8 for measurement
Are provided, and a water supply hose H1 and a measuring hose H2 are connected to each. The water injection hose H1 is connected to an external water pipe, and the measurement hose H2 is connected to a buret 10 for measuring the amount of water. Further, a water receiver 11 for receiving water overflowing from the inside of the water jacket is provided on the outer peripheral portion of the water jacket 1 in the vertical direction.

A rail member 15 is attached to a side surface of the column 2 on the water jacket side, and a moving member 17 is attached to the rail member 15 so as to be vertically movable. A substrate 20 is attached to the moving member 17 via a floating mechanism 19 that allows a slight movement in the horizontal plane. A spur gear 22 is rotatably attached to a shaft 21 provided at the center of the substrate 20. Further, an air motor 25 is attached to the upper surface side of the substrate 20, and a rotation shaft 25a thereof is attached with a pinion 27 that meshes with the spur gear 22. The rotation amount of the air motor 25 is limited by pressure and time.

Below the spur gear 22, a lid 30 of the water jacket 1 is provided.
A pipe-like joint 32 with a screw that is screwed to the mouth of the cylinder is attached. A pressure-resistant hose for supplying water is connected to the joint 32. The lid 30 and the joint 32 are
It is located directly above the water jacket 2. An elevating cylinder 35 is attached to the back side of the column 2. The sprocket wheel 3 is attached to the rod tip of the cylinder 35.
6 is attached and the chain 37 is hung on it. One end of the chain 37 is fixed to the column side, the middle part is hooked on a sprocket 39 provided on the top of the column 2, and the other end is connected to the moving member 17. Therefore, when the cylinder 35 is expanded and contracted, the moving member moves up and down along the rail member 15.

A vertically movable water injection nozzle 43 for preliminarily injecting water into a cylinder, which is sandwiched by a chuck device and vertically supported, is provided on the side of the water canister 1. The left and right side portions of the water jacket 1 have a first transfer device 40 (A).
And the second transfer device 40 (B) are provided symmetrically. Each of these transfer devices 40 includes an arm 42 supported by a shaft 41 so as to be rotatable left and right in a horizontal plane, and a chuck device 45 is attached to a tip end portion of the arm.

As shown in FIGS. 4 and 5, the chuck device 45 is provided with a pinion 47 which is rotated by an air motor 46 at the center thereof, and a pair of rack members 49a, 4a.
9b are engaged with each other at the positions facing each other at right angles. Therefore, if the pinion 47 is rotated in the forward and reverse directions, the pair of rack members 49a and 49b are moved toward or away from each other by the same distance along the guide members 50 and 50 according to the rotation direction thereof. Moving.

The chuck device 45 comprises a base portion 53 and a gripping member 55 attached to an air cylinder 54 mounted on the base portion. When the cylinder 54 is expanded and contracted, the gripping member 55 moves forward and backward. ing. The gripping surface 55a of the gripping tool 55 is formed in a concave shape that fits the outer circumference of the cylinder.

The chuck device 45 is attached to the rotating arm 42 by a cylinder 60 so as to be rotatable within a range in which a gripping direction is changed from a vertical direction to a horizontal direction. Further, the pair of left and right rotating arms 42, 42 are rotated within a predetermined range in the horizontal plane by the air cylinders 42a, 42b.

A carry-in device 70 and a carry-out device 90 are provided on the front side of the water jacket 1. The carry-in device 70 includes an inclined magazine 71 slightly inclined (α) toward the center side,
And a loading table 72 having a groove having a V-shaped cross section provided at an end portion on the center side thereof, and a partition table slightly higher than the end portion of the tilting magazine between the end portions of the tilting magazine and the loading table 72. 73, and a push-up tool 77 that is rotated up and down by a cylinder 75 and lifts a cylinder at the end of the inclined magazine to climb over the partition table.

A cylinder 78 for sliding the carrying-in table in the front-back direction is provided at the lower part of the carrying-in table 72 having the V-shaped groove, and a cylinder 80 is provided on the side of the cylinder 78 to move back and forth along the V-shaped groove. A pusher 81 for feeding the cylinder placed on the loading table to the first transfer device 40 (A) is provided.

Further, the carry-out device 90 comprises a carry-out magazine 91 and a carry-out table 92 having a groove having a V-shaped cross section, and the carry-out table is supported by a base frame 94 which is rotatably supported around a shaft 93.
Attached to. An arm 95 is integrally provided on the base frame 94, and a roller 96 is attached to the tip of the arm. Further, the shaft 93 has a guide 99.
It is attached to the tip of a moving table 100 that moves upward, and the moving table 100 is configured to reciprocate in the left-right direction between a cylinder receiving position U and a delivery position S by a cylinder 102.

A cylinder 105 for moving back and forth is provided in the lower part of the carry-out table 92, and by this cylinder, the carry-out table 92 is located at the position of the chuck and the carry-out magazine 9.
Move back and forth between 1. In the vicinity of the end of the carry-out table 92, a cylinder-type drawer device 103 that hooks the rear end of the cylinder and moves to the front side along the carry-out table is provided.

Further, a drying device 110 is provided on the side of the water jacket 1. The drying device 110 is provided with an upward discharge nozzle 111, and discharges air and steam from this nozzle.

Next, a method of using this device will be described.

First, the cylinder 120, which is the sample, is manually placed on the carry-in magazine 70. Multiple cylinders can be placed side by side in this magazine. The cylinder 75 is extended, and one of the most advanced cylinders on the magazine is lifted to get over the partition table 73 and placed on the carry-in table 72. Since a V groove is provided on the upper surface of the carry-in table 72,
The cylinder 120 is stably held at a fixed position.

The cylinder 78 operates and the loading table 72 slides toward the chuck device 45. At the same time, the cylinder 80 operates and the pusher 82 pushes the cylinder on the loading table to the chuck device side. At this time, the grippers 55, 55 of the chuck device that have been standing by in the vertical posture clamp the body of the cylinder that is held horizontally in a lying state. The carry-in table 72 returns to the original position.

The chuck device holding the cylinder rotates 90 degrees to hold the cylinder vertically. In this state, the water injection nozzle 43 descends and is inserted into the cylinder 120, and water is injected into the cylinder. When sufficient water has been injected, the water injection nozzle 43 moves up.

The arm 42 for supporting the chuck device is 45
Swirl once to position the cylinder just above the canister 1. Then, the joint 32 is screwed into the mouth of the cylinder.

After the grip of the chuck device 45 is opened and the cylinder is released, the arm 42 pivots and returns to its original position.

The cylinder held by the joint 32 descends together with the joint and is inserted into the water canister 1 which is always full of water. The lid 30 of the water jacket is brought into close contact with the upper surface of the water jacket, and is firmly fixed by a clamp device (not shown).

In this state, a predetermined withstand voltage test is performed. That is, water is pressed into the cylinder through the nozzle 32 that also serves as a joint, and the deformation of the cylinder is measured by the amount of water overflowing from the water canister 1. A series of operations of this pressure resistance test is controlled by a control device (not shown).

When the pressure resistance test is completed, the clamp device is opened, and the lid 30 of the water jacket rises together with the joint. Next, the arm 42 on the unloading side turns 45 degrees and stands by immediately below the cylinder held by the joint. Then, the lid 30 of the water jacket and the joint 32 descend together with the cylinder to a predetermined position, and the gripping tool of the chuck device is closed by the descending signal, and the body of the cylinder is clamped.

The joint rotates in the opposite direction and is removed from the cylinder and rises. Then, the arm 42 turns and returns to the original position. At this position, the chuck device 45 for holding the cylinder rotates 180 degrees about the horizontal axis, and the cylinder is turned upside down so that the nozzle 111 of the drying device rises and is inserted into the cylinder to completely discharge the water in the cylinder. When this discharge is completed, air is first discharged from this nozzle, water adhering to the inner wall of the cylinder is discharged, then steam is discharged, and finally air is discharged again. In this way, the inside of the cylinder is cleaned and drained and dried.

The chuck device holding the cylinder 120 is 9
Rotate about 0 degrees (slightly more than 90 degrees) to keep the cylinder horizontal. Then, the unloading table 92 slides to the lower side of the cylinder, and the chuck device opens,
The cylinder is placed on the unloading table. Drawer device 10 having a hook-shaped hook at the rear end (bottom) of this cylinder
3 is hooked and moved to the front side. The carry-out table 92 slides and returns to the original position.

A movable table 100 for supporting the carry-out table 92 is shown in FIG.
To the left of. Then, the roller provided at the end of the arm comes into contact with the stopper surface 115 of the machine frame, and the arm rotates counterclockwise along with the carry-out table.
Therefore, the carry-out table 92 on which the cylinder is placed is tilted leftward, and the cylinder is discharged onto the carry-out magazine 91. This cylinder rolls on the carry-out magazine, moves to the end portion of the carry-out magazine, and is manually taken out from there.
Such a series of operations is repeated by the control device, and the pressure resistance test of the cylinder is efficiently and continuously performed.

This pressure resistance tester requires a lot of labor and skill because it is possible to carry out continuous tests by simply placing cylinders on the loading magazine one after another without the need for carrying by hand. In addition, work efficiency is improved. Also, for example, a cylinder with a round bottom that does not stand upright itself can be tested without any problem.

[0032]

As described above, the pressure tester for a high-pressure gas container according to the present invention saves labor for carrying and supporting the cylinder by hand, saves labor, and efficiently performs the pressure test. It is very convenient for practical use.

[Brief description of drawings]

FIG. 1 is a front view illustrating an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view of the main part.

FIG. 4 is a side view of a chuck device.

FIG. 5 is an explanatory diagram of a drive mechanism thereof.

FIG. 6 is a side view of a carry-out table.

[Explanation of symbols]

 1 Water bottle 2 Column 30 Lid 32 Joint 40 Transfer device 42 Arm 45 Chuck device 70 Carry-in device 72 Carry-in stand 90 Carry-out device

Claims (1)

[Claims] 1. A carrying-in device for carrying in a high-pressure gas container, a transfer device for gripping a high-pressure gas container carried into a predetermined standby position by the carrying-in device with a chuck, and moving the container from the standby position to a test position, and the test. A test to attach a nozzle to the high-pressure gas container transferred to the position, insert it into the water jacket and take out the high-pressure gas container after the test from the water jacket, and perform a pressure resistance test on the high-pressure gas container inserted into the water jacket. A pressure test device for a high-pressure gas container, comprising: a device and a carry-out device that carries out the high-pressure gas container taken out of the water bottle to a predetermined carry-out position after the test.