KR100242000B1 - Vessel clamping device for high pressure vessel inspection - Google Patents

Abstract

The present invention relates to a container clamping device for inspecting a high pressure container, and more particularly, to an LPG container and a high pressure gas container (hereinafter referred to as a high pressure container), without damaging the inlet of the high pressure container. The present invention relates to a container clamping device for inspecting a high pressure container, which can completely seal a connection portion of a clamping device connected to an inlet and a high pressure container.

The container clamping apparatus for inspecting a high pressure container according to the present invention is clamped at the inlet of the high pressure container 1 in a state in which a high pressure container 1 to be subjected to a hydraulic pressure test is inserted into an inside of the hydraulic test container 2 filled with the inspection water. After connecting and installing the device 10, the test water is injected into the high pressure container 1 through the clamping device 10, and the amount of increase in the water pressure in the pressure test container 2 and the inside of the high pressure container 1 are increased. In the configuration of the high-pressure container inspection container clamping device configured to measure the internal pressure of the high-pressure container 1 by displaying the reduced amount of the water pressure inside the hydraulic inspection container 2 after removing the supplied pressure. The container clamping device for high pressure vessel inspection is covered with a clamp 4 on the upper side of the hydraulic inspection vessel 2 to seal the hydraulic inspection vessel 2, and a cover having an inspection water inflow hole 5a formed at one side thereof. Plate 5 and the cover plate ( 5) a casing 16 fixed to the lower center of the center and having an inspection water inflow passage 16a communicating with the inspection water inflow hole 5a at an inner predetermined position, and in a vertical direction in the upper center of the cover plate 5; The lower cylinder 14 is installed downward and the hollow second rod 15 is installed downward into the casing 16 to move up and down, and the through-hole 14a through which the lifting rod is guided up and down is moved through the center. ), And is installed downward in the vertical direction on the upper cylinder 14, the lower end of the first rod 12, which is haunted downward, through the through hole (14a) and the second rod (15) The upper and lower cylinders 11 of which the lifting rods 13 of a predetermined length are installed downward, are fixed to the distal end of the second rod 15 from the inside of the casing 16, and the supporting nut 18 for the fastener is installed at the distal end thereof. Hanging piston (17) provided and the support nut (18) is supported by the end portion The end of the elevating rod 13 is three to four locking pieces 23 are projected outwardly projecting projection 22 is projected outwardly and the locking projection 21 is projected outwardly is caught in the inlet of the high-pressure container (1) in the distal end The radially installed on the outer periphery is characterized in that it consists of a latch 20 for clamping the high-pressure container (1) while shrinking and expanding in accordance with the lifting and lowering of the lifting rod (13).

Description

Vessel clamping device for high pressure vessel inspection

The present invention relates to a container clamping device for inspecting a high pressure container, and more particularly, to an LPG container and a high pressure gas container (hereinafter referred to as a high pressure container), without damaging the inlet of the high pressure container. The present invention relates to a container clamping device for inspecting a high pressure container, which can completely seal a connection portion of a clamping device connected to an inlet and a high pressure container.

In general, since LPG containers and high-pressure gas containers are filled with high-pressure gas, which is very beneficial to our lives, special care must be taken from the time of manufacture to storage and handling. After the period of use, the safety inspection of the high pressure vessel should be carried out thoroughly for the safe use of the high pressure vessel on a regular basis.

The safety inspection of the high pressure vessel as described above is carried out by injecting a pressure test article (hereinafter referred to as inspection water) into the high pressure vessel at a high pressure, and then expanding the state of the high pressure vessel and extracting the test water that has been injected at a high pressure into the high pressure vessel. Hydraulic test is used to measure the fatigue state of high pressure vessels by measuring the original state of recovery of containers.

When the pressure test for the high pressure container as described above is to be carried out, a state in which the high pressure container 1 is put into the hydraulic test container 2 filled with the inspection water as shown in FIG. After the installation of the clamping device 10 is connected to the inlet of the high-pressure container (1), the test water is injected into the inside of the high-pressure container (1) through the clamping device 10 of the hydraulic pressure in the hydraulic test container (2) After removing the increase amount and the pressure supplied to the inside of the high pressure vessel 1, the amount of decrease in the water pressure inside the hydraulic inspection vessel 2 is displayed and displayed on the indicator 3 to measure the internal pressure of the high pressure vessel 1. (The imaginary line in FIG. 1 virtually represents the volume increase value of the high pressure vessel 1 according to the increase in water pressure.)

By the way, the connection portion of the conventional clamping device 10 and the high-pressure container 1 is screwed as shown in FIG. 2, so that the female screw portion of the inlet of the high-pressure container 1 when the clamping device 10 is used for a long time. (8) Inspection of the high pressure injected through the hydraulic injection passage 6 of the clamping device 10 due to the wear of the fastening male part 7 of the clamping device 10 and the clamping device 10 in particular due to wear. As water pressure is not injected into the inside of the high pressure vessel 1, there is a problem in that the accurate internal pressure test for the high pressure vessel 1 cannot be performed.

The present invention is to solve the conventional problems as described above, the object of the present invention, the high-pressure container inspection to ensure that the inlet of the high-pressure container and the fastening portion of the clamping device is completely airtight when the internal pressure test for the high-pressure container It is to provide a container clamping device for.

High pressure vessel inspection container clamping apparatus according to the present invention for achieving the above object, in the configuration of the high pressure vessel inspection container clamping device to measure the internal pressure of the high pressure vessel, by a clamp on the upper side of the hydraulic inspection vessel An inspection water inlet is formed at one side of the cover plate to be covered with an inspection water inlet, and a casing having an inspection water inflow passage communicating with the inspection water inlet at a predetermined inner portion of the cover plate is formed at an inner side of the cover plate. The lower cylinder is installed downward, and the lower cylinder having a hollow second rod is installed downward into the casing, and the through-hole through which the lifting rod is to be guided up and down is vertically installed at the center upper portion of the cover plate. Through hole of the lower cylinder at the distal end of the first rod which is hurried downward in the upper portion of the An upper cylinder in which a lifting rod having a predetermined length descending ascending and descending through the hollow of the two rods is installed vertically, and a locking nut supporting support nut is installed at the distal end of the second rod inserted into the casing. A gupi stone is installed, and the lower end of the casing, the supporting jaw supported by the support nut is projected outwardly at the distal end, and the three to four locking pieces are projected outwardly at the distal end. A radially installed latch is installed on the outer periphery of the lower end of the rod, wherein the three to four locking pieces are provided with a predetermined gap therebetween.

1 is an explanatory diagram showing a general pressure test state for the high-pressure container.

FIG. 2 is an exploded cross-sectional view of the portion “A” of FIG.

3 is a cross-sectional view of the container clamping device for high pressure vessel inspection according to the present invention.

4 (a) and (b) are enlarged cross-sectional views of the main part of the present invention, showing a state of action of the locking mechanism.

5 is a sectional view taken along the line A-A of FIG.

6 (a) to 6 (d) are working state diagrams of the present invention.

* Explanation of symbols for main parts of the drawings

1: high pressure container 2: hydraulic test container

3: indicator 4: clamp

5: Cover plate 5a: Inspection water inlet hole

6: Inspection water inflow passage 7: Tightening male thread

8: female thread part 9: container entrance

10: clamping device 11: upper cylinder

12: first rod 13: lifting rod

14: lower cylinder 15: the second rod

16: casing 16a: inspection water inflow passage

17: hanger piston 18: support nut

19: ring nut 20: hook

21: engaging jaw 22: supporting jaw

23: hanging piece c: gap

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a cross-sectional structural view of a container clamping device for inspecting a high pressure container according to the present invention, and FIG. 4 (a) and (b) are enlarged cross-sectional views of the main part of the present invention, showing a state of action of the locking mechanism. 4 is a cross-sectional view taken along the line AA of FIG. 4, and FIGS. 6 (a) to (d) are functional state diagrams of the present invention.

The inner side of the high pressure vessel 1 to be inspected at a predetermined position on one side of the cover plate 5 covered by the clamp 4 on the upper side of the hydraulic inspection vessel 2 in which the pressure test water (inspection water) is filled inside. The inspection water inlet hole 5a to be connected to the water supply hose hose 30 for injecting the inspection water is formed, and communicates with the inspection water inlet hole 5a at a predetermined inner side in the central lower portion of the cover plate 5. The casing 16 having the inspection water inflow passage 16a is provided downward, and the distal end of the inspection water inflow passage 16a is formed to communicate with the inner lower end of the casing 16.

In addition, the lower cylinder 14, which is disposed in the upper and lower portions of the hollow second rod 15 downwardly inwardly of the casing 16, is downwardly installed in the vertical direction in the center upper portion of the cover plate 5. The through hole 14a through which the elevating rod 13 is guided up and down is formed in the upper center of the lower cylinder 14.

In addition, the lower cylinder 14 ascends and descends through the through hole 14a of the lower cylinder 14 and the hollow portion of the second rod 15 at the distal end of the first rod 12 which is recessed downward. The upper cylinder 11 in which the elevating rod 13 of a predetermined length is provided downward is installed downward in the vertical direction.

In addition, at the distal end of the second rod 15 inserted into the casing 16, a locking mechanism piston 17 which moves up and down as the second rod 15 moves up and down is installed. At the distal end of the piston 17, a support nut 18 is installed, on which an inlet of the high pressure vessel 1 and a catching hole 20 to be clamped are installed.

In addition, the lower end of the casing (16) is selectively clamped with the inlet of the high-pressure container (1) and the catching hole 20 through which the inspection water is injected or discharged into the high-pressure container (1) through the hose (30) It is installed up and down and contracted and expanded.

The latch 20 has a support jaw 22 which is supported by the support nut 18 is protruded outwardly in the distal end portion and the catching jaw 21 caught in the inlet of the high-pressure container 1 at the distal end protrudes outwardly. Three to four locking pieces 23 are radially installed on the outer periphery of the lower end of the elevating rod 13, and the three to four locking pieces 23 are provided with a predetermined clearance c therebetween. Inspection water will be accessed through.

In addition, the locking hole 20 is to clamp the high-pressure container 1 as the three to four locking pieces 23 are contracted and expanded in accordance with the lifting and lowering of the lifting rod (13).

Looking at the effects of the present invention configured as described above are as follows.

When the internal pressure of the high-pressure container 1 is to be measured by using the container clamping device for inspecting the high-pressure container of the present invention, the high-pressure container 1 to be inspected in the hydraulic test container 2 filled with water (inspection water) inside Insert and cover the upper side of the hydraulic inspection vessel (2) using the clamping device (10). In this case, as shown in FIG. 6 (a) (b), the entire clamping device 10 is lowered so that the lower end portion of the cover plate 5 comes into close contact with the upper entire circumference of the hydraulic inspection container 2, and the clamp 4 By using), the hydraulic inspection container 2 and the cover plate 5 are firmly bound.

When the second rod 15 of the lower cylinder 14 is lowered as shown in FIG. 6 (b) in the above state, the locking hole provided at the distal end of the second rod 15 together with the second rod 15 is lowered. The piston 17 descends from the inside of the casing 16, and the catching hole 20 installed downward at the distal end of the catching piston 17 is also lowered so that the catching hole 20 opens the inlet of the high pressure container 1. Through the inlet to the high pressure vessel (1).

At this time, the latching hole 20 is the lowering rod 13 is not lowered, only the three to four locking pieces 23 are separated from each other, so the three to four locking pieces 23 are mutually predetermined Since the state is installed leaving a gap (c) is to be lowered in the closed state.

In this state, when the first rod 12 of the upper cylinder 11 is lowered, the lifting rod 13 installed downward at the distal end of the first rod 12 descends, and the lifting rod 13 is the fifth rod. As shown in (c), the locking piece 20 descends from the inner side of the locking hole 20 to the distal end of the locking hole 20 so that the locking piece 23 radially disposed on the outer side of the elevating rod 13 is opened radially outward. .

As described above, when the three to four locking pieces 23 are opened, the overall outer diameter of the locking jaw 21 protruding outwardly to the distal end portion of each locking piece 23 is expanded than the inner diameter of the inlet of the high pressure container 1. do. In this state, when the second rod 15 of the lower cylinder 14 is lifted upward, the catching hole 20 of the open state is also raised while the outwardly protruding catching jaw 21 is the high pressure container 1. While being caught inside the inlet, the inlet of the high pressure vessel 1 and the lower end of the casing 16 are clamped.

At this time, the lower end of the casing 16 is provided with a ring nut 19 in close contact with the upper inlet of the high pressure vessel (1) so that the upper end of the inlet of the high pressure vessel (1) and the lower end of the casing (16) to be completely sealed. do.

As described above, in the state in which the locking holes 20 are perfectly clamped inside the inlet of the high-pressure container 1, the spaces between the three to four locking pieces 23 are finely spaced, but the gap c is more widened. In the outer circumference of the locking hole 20, the gap c of the three to four locking pieces 23 is secured as shown in FIG. 5 so that a flow path into which the inspection water flows is formed in the vertical direction.

After the clamping device 10 is installed at the inlet of the high-pressure container 1 as described above, the test water is injected at the pressure set through the hose 30 after the flow path for the test water is formed therein, and the test water is a hose ( 30 is introduced into the casing 16 through the inspection water inflow hole 5a of the cover plate 5 and the inspection water inflow passage 16a of the casing 16, and flows into the casing 16. The test water is to be introduced into the high-pressure container (1) through the gap (c) formed by the three to four locking pieces (23).

By injecting the test water into the inside of the high-pressure container (1) as described above, the fatigue degree (inner pressure) for the high-pressure container (1) can be inspected as desired, and after the inspection is completed, the clamping device (10) for the inspection The clamping device 10 is separated from the high pressure container 1 as opposed to clamping the high pressure container 1.

As described above, the container clamping device for high pressure container inspection according to the present invention is configured to inject inspection water while clamping the clamping device to the inlet of the high pressure container using a collet chuck-type locking hole. There is no fear of leaking the test water to the fastening part like the clamping device used for clamping, and thus there is an advantage that the internal pressure test on the high-pressure container can be accurately performed.

As the pressure resistance test for the high pressure container is made exactly as described above, the advantages of using the high pressure container safely and the inspection is made by the air cylinder rather than the manual operation, so the time required for the inspection is shortened, and the clamping device and the high pressure container Damage can be prevented, so that it can effectively test the internal pressure of the high-pressure container.

Claims (1)

The clamping device 10 is connected to the inlet of the high-pressure container 1 while the high-pressure container 1 for the hydraulic test is put into the hydraulic test container 2 filled with the inspection water, and the clamping device ( 10) Inject the test water into the inside of the high pressure vessel (1) to remove the increase in the water pressure in the hydraulic test vessel (2) and the pressure supplied to the inside of the high pressure vessel (1) and then inside the hydraulic test vessel (2) In the high pressure vessel inspection container clamping device configured to compare and display the reduced amount of the hydraulic pressure on the indicator 3 to measure the internal pressure of the high pressure vessel 1, the clamp 4 is placed on the upper side of the hydraulic inspection vessel 2. An inspection water inflow hole 5a through which inspection water is introduced is formed at a predetermined position on one side of the cover plate 5 to be covered by the cover plate 5, and the inspection water inflow hole ( Inspection water inflow passage (16a) in communication with 5a) The formed casing 16 is installed downward, and a hollow second rod 15 is installed downward in the center of the cover plate 5, and a lifting rod 13 is disposed in the upper center of the casing 16. The lower cylinder 14 through which the through hole 14a to be guided up and down is vertically installed, and the lower cylinder 14 is disposed at the distal end of the first rod 12 which is protruded downward in an upper portion of the lower cylinder 14. The upper cylinder 11 in which the lifting rod 13 having a predetermined length downwardly penetrates through the through hole 14a and the hollow portion of the second rod 15 is vertically installed, and is installed inside the casing 16. At the distal end of the inserted second rod 15, a disengagement piston 17 provided with a disengagement support nut 18 is provided at the distal end, and the distal end of the casing 16 has the support nut 18 at the distal end. The support jaw 22 supported by the protrusion protrudes outwardly and the inlet of the high pressure container 1 at the distal end thereof. 3 to 4 locking pieces 23 having the locking jaw 21 to be projected outwardly are installed radially on the outer periphery of the lower end of the elevating rod 13, but the 3 to 4 locking pieces 20 are radially installed. Locking piece 23 is a high-pressure container inspection container clamping device, characterized in that installed with a predetermined gap from each other.

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