JP2006292557A5 - - Google Patents

Description

Pressure-resistant inspection equipment for long containers

The present invention relates to a pressure resistance test of a high-pressure gas container that stores hydrogen, compressed natural gas, etc. in a high-pressure state, and in particular, for a long high-pressure gas container mounted on a truck, a trailer, etc. quickly, safely, and it relates Bei withstand voltage test set elongated container that allows to perform a series of inspection process with high accuracy.

There are a water tank type test and a non-water tank type test in the pressure resistance test for the high pressure gas container.
As a water tank type pressure-resistant inspection device, for example, as shown in Patent Document 1, a device for holding a side surface of a container to be inspected carried into a predetermined standby position with a tong and moving it from the standby position to the inspection position, and transferring to the inspection position A nozzle is attached to the container to be inspected, inserted into the water tank and the container after inspection is taken out of the water tank, a device for performing a pressure test on the container to be inspected inserted into the water tank, and removed from the water tank after the test is completed. And a device for unloading the container to a predetermined unloading position.

Moreover, as a non-water tank type pressure | voltage resistant test | inspection apparatus, as shown, for example in patent document 2, it pressurizes water further to the apparatus which inject | pours water into the container of a test object along the conveyance path of a conveyor, and a container with a full water state. A booster pump to be injected, a device for reading the amount of movement of the booster pump, a device for calculating the deformation amount of the high-pressure gas container from the amount of movement of the booster, a device for draining from the long container after measurement, and a container after draining There are those provided with a drying device.
JP 9-242988 JP 2004-117291 A

However, in any of the inspection methods, in the pressure resistance inspection of a long high-pressure gas container having a length of 5m to 10m, which requires periodic pressure resistance inspection, workability is poor, and heavy equipment such as forklifts and cranes. It was necessary to use. For this reason, a great deal of labor and a wide range of work places are required, and a high-accuracy pressure-resistant inspection is difficult.
Therefore, an object of the present invention is to perform a series of inspection processes on a long high-pressure gas container quickly, safely, and with high accuracy without requiring a wide range of work places.

In order to solve the above-described problems, the present invention provides a pressure resistance of a long container that includes a moving device that moves a loaded long high-pressure gas container and an inspection device that performs a pressure-resistant test on the long container. An inspection facility, wherein the moving device is installed on a turntable, and a tongue holding a long container rotates and moves up and down, and a basket holding one end of the long container is suspended. Is.

Moreover, you may provide the delivery apparatus which rolls a long container on a stand and delivers to the said tongue by the front | former stage of the said moving apparatus.
Further, in the pressure-resistant inspection equipment for a long container according to the present invention, a vertical hole is provided in the front surface of the turntable and in which a part or all of the long container is stored in a state where the long container is vertical. Good.
Moreover, in the pressure resistance test facility for a long container according to the present invention, a work table that can be moved up and down may be provided at a position facing the moving device with the vertical hole at the center.

According to the first aspect of the present invention, since the pressure-resistant inspection moving device is installed on the turntable, a series of inspection steps can be performed in a circular area centered on the turntable, and a wide range of work places can be obtained. do not need.
In addition, since the tongs that sandwich the long container to be inspected rotate and move up and down, there is no need for a crane or manpower.

Furthermore, since the basket holding one end of the long container is suspended, the pressure resistance test can be performed in a state where the long container is suspended vertically. In this way, in the case of non-water tank type pressure-resistant inspection, interference with the inspection result by holding the side of the long container with tongs, or inspection by its own weight by placing the long container on the table Since there is no possibility of interference with the results, a highly accurate pressure resistance test is possible.

According to the second aspect of the present invention, since the long container rolls on the table and is horizontally transferred to the tongue by the transfer device provided at the front stage of the moving device, the long container is smoothly transferred. Is called.
According to the third aspect of the present invention, a vertical hole is provided in front of the turntable and a part or all of the container is stored in a state where the long container is vertical, so that the height of the work area can be reduced. .

According to the fourth aspect of the present invention, since the work table that can be moved up and down is provided at a position facing the moving device with the vertical hole at the center, workability when visually inspecting the outside of the long container that moves up and down in the vertical hole is provided. Becomes better.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing a pressure-resistant inspection facility 1 according to the present invention. The pressure test facility 1 is for performing a non-water tank type pressure test on a long container 2 that accommodates hydrogen, compressed natural gas, and the like in a high pressure state. As a long container, the thing of 3 m or more is said, Preferably the thing of 5 m-10 m is said. In the present embodiment, a length of about 8 m is assumed.

The pressure-resistant inspection facility 1 in the present embodiment includes a moving device 10 installed on a turntable, a delivery device 25 that transfers a long container to the moving device 10, a vertical hole 30 that is opened on the front surface of the moving device 10, and It comprises a work table 40 equipped with a pressure-resistant inspection device, a drainage facility 60, and a washing and drying device 70.

1 is an area where the horizontal long container 2 is carried and held, the area B is an area where the pressure resistance test is performed with the container vertical, and the area C is washed and dried. This is a work area. Further, region A is used to carry out the leveled container after inspection.

First, the delivery device 25 will be described. As shown in FIG. 2, the delivery device 25 is a device for removing the valve 25b from the long container 2 carried by the crane 25a and delivering it to the moving device 10 described later while rolling on the table. As shown in FIG. 3, it is a U-shaped base provided with a notch 26 in the center of one side portion close to the moving device 10.
A restriction stopper 26a for restricting the rolling of the long container is provided at both ends of one side portion close to the moving device 10, and a cylinder support portion 27 and a cylinder support stopper 28 are provided on one side of the other side portion. Provided.

The cylinder support part 27 has a pneumatic cylinder 27a, and fixes the long container between the cylinder support stopper 28 and the cylinder.
As shown in FIG. 4 (a), the horn support stopper 28 is formed by opening a corner of a base and having a rotatable plate member 28a fitted therein to constitute a stopper. A rotatable hinge 28b is provided on the back surface of the plate material 28a, and a locking member 28c is provided on the lower side surface portion of the hinge 28b. When the locking member 28c is locked to the regulating member 28d provided inside the table, the plate material 28a stands up and functions as a stopper as shown in FIG. 4C.

When the pneumatic cylinder 27a of the cylinder support 27 is released, the locking member 28c of the hinge 28b is released from the restricting member 28d as shown in FIG. 4B, and as shown in FIG. The plate material 28a of the support stopper 28 becomes the plate surface of the base, and the long container 2 can roll on it.
As shown in FIG. 5A, the tongue 13 of the moving device 10 to be described later stands by at the position of the notch 26 of the delivery device 25 with the gripping tool 14 opened, and is stopped by the restriction stopper 26a. The formed long container 2 is grasped as shown in FIG.

As shown in FIG. 6, the moving device 10 is formed by providing a tongue 13 on a portal frame 12 installed on a rotating disk 11.
The tongue 13 includes a pair of gripping tools 14, 14, a tongue rotating disk 15 that rotates the gripping tools 14, 14, and a rotation mechanism (not shown) that rotates the rotating disk 15.

The gripping tools 14 and 14 hold a long container to be inspected, and are opened and closed in a direction approaching and separating by a cylinder device (not shown).
That is, the tongue 13 holds the elongate container 2 by opening and closing the gripping tool 14 as shown in FIG. 7 (a), and holds the elongate container as shown in FIG. 7 (b). As shown in FIG. 7 (c), the long container can be rotated from the horizontal state to the vertical state by rotating the gripper 14 itself. It is configured to be able to.

As shown in FIG. 8, a chain 16 having a key at the tip is attached to the tip of one gripping tool 14, and the key of the chain 16 is locked to the tip of the other gripping tool 14. A locking portion 17 is provided. These function as a safety device for preventing the long container 2 from popping out by locking the key of the chain 16 to the locking portion 17 after the long container 2 is clamped by the gripping tool 14.

In addition, the gripping tool 14 of the tongue 13 is provided with a winding device 19 for winding the wire 18. A basket 20 as shown in FIG. 9 is attached to the tip of the wire 18 of the winding device 19, and the basket 20 suspended from the wire 18 is moved up and down by winding or feeding the wire 18.

When the long container 2 is received horizontally by the tongue 13, the basket 20 is placed on one end 3 of the long container 2, and in this state, the one end 3 of the long container 2 is positioned below. The tongs 13 are rotated to make the long container 2 vertical.
Then, by opening the tongue 13, as shown in FIG. 8, the one end 3 of the long container 2 is received and supported by the basket 20, and the long container 2 is suspended.

The crosspiece member 21 on which the tongue 13 shown in FIG. 6 is disposed is configured to move up and down in the frame 12 by a cylinder device (not shown). In this case, the height H of the frame 12 from the installation surface GL of the moving device 10 is about half of the length of the long container 2. For example, in the case of an 8 m long container, the tongue 13 has a height of about 4 m. It is now possible to rise.
The operations of rotating and raising / lowering the tongue 13 and opening / closing the gripping tool 14 are performed by an operating device 22 provided on the rotating disk 11.

The frame 12 is fixed to one corner of the turntable 11 with the tongue 13 facing the outside of the turntable 11. As the turntable 11 turns horizontally, the long container 2 to be inspected moves to the work areas A to C while being sandwiched by the tongs 13. The turning of the turntable 11 is also operated by the operation device 22 provided on the turntable 11.

As shown in FIG. 10, a vertical hole 30 is opened on the front surface of the moving device 10, and a cylinder 31 is embedded in the vertical hole 30.
The vertical hole 30 is used to store the long container 2 to be inspected while being suspended by a basket, and is opened at a point corresponding to the distance R from the center of rotation of the turntable 11 to the tongue. The diameter of the opening surface of the vertical hole 30 is slightly larger than the diameter of the long container 2 and the depth D of the vertical hole 30 is more than half the length of the long container (when the length of the long container is 8 m). About 4 m or more).

A work table 40 having an inspection device 50 is provided at a position facing the moving device 10 with the vertical hole 30 at the center.
The work table 40 includes an elevating device unit 41 that uses a lifting mechanism by hydraulic pressure of a forklift and an inspection work unit 42 that performs a pressure resistance test.

The elevating device unit 41 is configured to be able to be raised to the inspection working unit 42 to a height sufficient to visually recognize the inside of the long container 2. The height H is about half of the length of the long container 2. For example, in the case of a long container of 8 m, it may be raised to a height of about 4 m.

As shown in FIG. 11, a device for performing a series of pressure resistance tests is mounted on the inspection work unit 42 of the work table 40.
The contents of the pressure resistance inspection include an internal contamination inspection, a pressure resistance test, and an external contamination inspection. As an inspection device 50 for the internal contamination inspection, a camera 52 attached to the end of a cable 51 as shown in FIG. A computer 53 for processing an image taken by the camera 52, a monitor 54 for displaying the image processed by the computer 53, an external recording medium for storing the image, a printer 55 for printing the image, and the like are mounted. In addition, according to the imaging | photography range (theta) per lens 1 direction of the camera 52, the contamination state inside a container is image | photographed, rotating the camera 52 suitably.

As an inspection device for the pressure resistance test, a water injection device 56 for injecting water into the long container 2, a pump 57 for injecting water into the long container 2 in a full state, and water under pressure injection A measuring device 58 and the like for measuring the amount and the return amount of water when the pressure is released are mounted.
The external contamination inspection is performed visually while raising / lowering the work table 40 or raising / lowering the tongue 13.

A drainage facility 60 shown in FIG. 13 is provided adjacent to the work table 40.
The drainage facility 60 includes a sewage treatment mechanism including a U-shaped groove 61, a water receiving tank 62, a septic tank 63, a drainage tank 64, and a water pipe 65. By rotating the tongue 13 while holding the long container 2, water is discharged from the mouthpiece at the upper end of the long container 2 to the U-shaped groove 61.
In the region C adjacent to the drainage facility 60, as a cleaning / drying device 70, a high-pressure steam supply device for cleaning the interior of the drained long container with high-pressure steam, and a container for drying the cleaned container A high-temperature compressed air supply device is provided.

Next, a method for performing a pressure resistance test on a long container using the pressure resistance test facility 1 will be described.
First, as shown in FIG. 2 (a), the long container 2 carried into the delivery device 25 by the crane 25a is fixed by the cylinder support 27 and the cylinder support stopper 28 as shown in FIG. 2 (b). The valve 25b provided in the base part is removed. Then, by releasing the pneumatic cylinder 27a of the cylinder support portion 27, the long container 2 can be rolled, and as shown in FIG. As shown in FIG. 5 (a), it is stopped by the restriction stopper 29.

At the position of the notch 26 of the delivery device 25, the tongue 13 of the moving device 10 stands by with the gripping portion 14 open, and the long container 2 is delivered in a horizontal state. And as shown in FIG.5 (b), the intermediate part of the elongate container 2 is clamped with the holding tool 14 of the tongue 13. FIG.
And after putting the basket 20 on the one end part of the elongate container 2, as shown in FIG.7 (b), the tongue 13 is raised. Then, the rotating disk is turned to position the elongate container 2 directly above the vertical hole 30 provided in the installation surface in the area B of FIG.

And as shown in FIG.7 (c), the tongue 13 is rotated and the elongate container 2 is made perpendicular | vertical. At this time, the long container 2 is rotated so that the one end portion on which the basket 20 is covered is positioned below.
And after adjusting the length of the wire 18 of the basket 20, the tongue 13 is open | released and the elongate container 2 is supported by the basket 20, as shown in FIG.
Thereafter, the wire hoisting device 19 is operated to lower the long container 2 supported by the basket 20 and suspended, and inserted into the vertical hole 30. At this time, the base at the lower end of the long container 2 is plugged in preparation for the non-water tank type pressure test.

In a state where the long container 2 is suspended by the wire 18, first, the inspection device 50 is inspected for the presence or absence of internal contamination of the container.
After that, water is injected into the container, and the non-water tank pressure resistance test (container pressure inspection specified by the High Pressure Gas Safety Association-measurement using equipment conforming to inspection equipment standards 3 or 2, or high pressure gas container re-inspection / Inspection of accessories and installation standards [Measurement in accordance with the National Federation of High Pressure Gas Container Inspection Institute, issued on June 7, 2002].

When the non-water tank type pressure test is completed, the long container 2 supported by the basket 20 is raised. At this time, the appearance of the long container 2 is visually inspected for contamination.
At the point where the lower end of the long container 2 is located above the vertical hole 30, the container is sandwiched by the tongue 13.

Then, the tongue 13 is rotated to lower the long container 2 as necessary while being horizontal, and as shown in FIG. 14, from the top part 4 of the long container 2, into the U-shaped groove of the drainage facility 60. Drain to 61.
Then, after cleaning the inside of the long container 2 with high-pressure steam, high-temperature compressed air is supplied and dried to complete a series of pressure-resistant tests.
The long container 2 that has undergone a series of pressure-resistant inspections is moved to the delivery device 25 by turning the moving device 10 while being horizontally held. Then, the tongue 13 is released to the height of the delivery device 25 and then released. The long container 2 placed on the platform of the delivery device 25 is rolled to the carry-out position and moved to the work area of the next process (such as repainting of the container) by the crane.

  According to the pressure-resistant inspection equipment for a long container according to the present embodiment, the long container 2 is sandwiched by the tongs 13 provided on the turntable 11, and sequentially moves to the work area by turning the turntable 11. Therefore, it is possible to perform a pressure resistance test for a long container in a narrow space without requiring a large facility.

Moreover, since the delivery device 25 is provided in the front stage of the moving device 10 and the long container 2 is rolled on the table and delivered horizontally to the tongue, the delivery of the long container is performed smoothly.
Moreover, since the vertical hole 30 is provided in the front surface of the turntable 11, and the elongate container 2 is stored therein, the pressure resistance test is performed, so that the height of the entire facility can be reduced.
Further, since the work table 40 can be moved up and down, work in an unnatural posture is eliminated, and workability is improved.

Furthermore, since the tongs 13 are opened during the pressure test and the long container 2 is supported by the basket 20 suspended from the wires 18, the result of the inspection by the container side being pressed by the tongs 13 can be reduced. Interference is prevented. Thereby, it is possible to perform a pressure resistance test and a visual inspection with high accuracy.

In addition, you may use the pressure | voltage resistant test | inspection equipment based on this invention for a water tank type pressure | voltage resistant test. In this case, the cylinder buried in the vertical hole is used as a water tank, and drainage equipment from the water tank is provided.
In the present invention, if the depth of the vertical hole is made as deep as the length of the long container, a work table that can be raised and lowered is not necessarily required. In this case, it is necessary to draw out a wire for hanging the basket and store substantially the entire long container in the vertical hole.
Further, in the present invention, the vertical hole is not necessarily required if the work table can be raised to the length of the long container.

  The above-described invention can be used as a pressure-resistant inspection facility for a high-pressure gas container and a pressure-resistant inspection method.

It is a top view which shows the pressure | voltage resistant inspection equipment which concerns on embodiment of this invention. It is a top view of the delivery apparatus of the said pressure | voltage resistant test | inspection equipment, (a) shows the state in which a long container is carried in, (b) shows the state in which a long container is fixed by a cylinder support part and a cylinder support stopper. (C) shows a state where the long container is delivered to the moving device. It is a perspective view which shows the delivery apparatus of the said pressure | voltage resistant test | inspection equipment. It is explanatory drawing which shows the cylinder support stopper of the said delivery apparatus, (a) shows the state in which the board | plate material used as a stopper is engage | inserted, (b) shows the state which rotates a board | plate material, (c) shows a stopper by a board | plate material. Shows the configured state. It is explanatory drawing which shows the state in which a elongate container is delivered by the said delivery apparatus. It is a perspective view which shows the moving apparatus of the said pressure | voltage resistant test | inspection equipment. It is explanatory drawing which shows the function of the tongue of the said moving apparatus. It is a perspective view which shows the state which suspended the basket on the said moving apparatus. It is a perspective view which shows the said basket. It is a side view which shows the outline of the vertical hole of the said pressure | voltage resistant test equipment, and a worktable. It is a perspective view which shows the said work bench | platform. It is explanatory drawing which shows the apparatus for the test | inspection inside the container mounted in the said work table. It is explanatory drawing which shows the drainage equipment and washing | cleaning drying apparatus of the said pressure | voltage resistant test | inspection equipment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pressure-resistant inspection equipment 2 ... Elongate container 10 ... Moving device 11 ... Turntable 13 ... Tong 18 ... Wire 19 ... Winding device 20 ... Basket 25 ... Delivery device 30 ... Vertical hole 40 ... Worktable

Claims (4)

A long container pressure-resistant inspection facility comprising a moving device that moves a long high-pressure gas container carried in, and an inspection device that performs a pressure-resistant inspection on the long container,
The moving device is installed on a turntable, and a tong that sandwiches the long container rotates and moves up and down, and a basket that holds one end of the long container is suspended. Facility. The long container pressure-resistant inspection equipment according to claim 1, wherein a delivery device for rolling the long container on a table and delivering it to the tongue is provided in the front stage of the moving device. 3. A long hole according to claim 1 or 2, wherein a vertical hole is provided on the front surface of the turntable to store a part or all of the long container in a state where the long container is vertical. Container pressure testing equipment. 4. The long container pressure-resistant inspection facility according to claim 3, wherein a work table that can be raised and lowered is provided at a position facing the moving device with the vertical hole at the center.