WO2015198464A1

WO2015198464A1 - Apparatus for testing and evaluating pipe joint

Info

Publication number: WO2015198464A1
Application number: PCT/JP2014/067127
Authority: WO
Inventors: 雅之山邊; 賢志郎中出
Original assignee: 日本バルカー工業株式会社
Priority date: 2014-06-27
Filing date: 2014-06-27
Publication date: 2015-12-30
Also published as: CN206420638U; KR200487255Y1; KR20170000810U; JP3209953U; SG11201610728WA

Abstract

　Provided is an apparatus for testing and evaluating a pipe joint, the apparatus being used for testing or evaluating the performance of a pipe joint, wherein the apparatus for testing and evaluating a pipe joint is characterized by having as least one stage selected from: a horizontal movement stage (5) having a fastener (4) for rotatably fastening an end (1a) of one pipe (1) from among two pipes (1, 2) which are connected by a joint (3), and a horizontal movement means (6) for moving the pipe (1) in the horizontal direction about the fastener (4); and a lengthwise/horizontal movement stage (11) having a lengthwise/horizontal movement means (10) for moving the other pipe (2) from among the two pipes (1, 2) in the lengthwise direction and/or the horizontal direction of the pipe (2).

Description

Piping joint test and evaluation equipment

The present invention relates to a pipe joint portion test evaluation device. More specifically, for example, the present invention relates to a pipe joint portion test evaluation apparatus that can be suitably used when testing or evaluating performance such as sealability in joint portions of pipes used in petroleum refining, petrochemical plants, and the like.

Generally, piping may be deformed such as bending and expansion / contraction due to external force and heat. When such deformation occurs in the piping, the sealing performance at the joint is reduced due to one-side tightening or gap caused by bending of the piping at the joint of the piping, or a decrease in the tightening load at the joint. There is a risk.

Conventionally, when connecting a pipe between two flanges where the positions of the flanges arranged in the pipe and the holes drilled in the flanges are not known, the positions of the two flanges are measured, and the measurement results As a positioning device for positioning the flange based on the above, the two rotary tables that support the rotary shaft having a face plate connected to one end of the shaft are mainly used, and the angle and distance between the axes of the rotary shafts are arbitrary. The distance from the intersection of the axis and the common perpendicular to the face plate can be fixed to any value, and the angular position around the rotation axis can be fixed to any value. A positioning device for manufacturing a flanged pipe has been proposed (see, for example, Patent Document 1).

However, the positioning device can grasp the relative positional relationship between the flanges when connecting the pipes to the two flanges arranged in the pipe. Cannot be evaluated.

Therefore, in recent years, there has been a demand for the development of a pipe joint test and evaluation device that can easily test and evaluate the performance such as sealability in the pipe joint.

Japanese Patent Laid-Open No. 5-34137

This invention is made in view of the said prior art, and provides the joint part test evaluation apparatus of the pipe | tube which can test easily and evaluate performances, such as the sealing performance in the joint part of pipe | tube. This is the issue.

[Technical Field] The present invention is a test and evaluation device for a joint part of a pipe used when testing or evaluating the performance of the joint part of the pipe, and one of the two pipes connected via the joint part A horizontal movement stage having a fixed portion for rotatably fixing the end portion of the tube and a horizontal movement means for moving the pipe in the horizontal direction around the fixed portion, and of the two pipes A pipe having at least one of a longitudinal / horizontal movement stage having a longitudinal / horizontal movement means for moving the other of the pipes in the longitudinal direction and / or the horizontal direction of the pipe The present invention relates to a joint part test evaluation apparatus.

The pipe joint test and evaluation device of the present invention has an excellent effect that it can easily test and evaluate the performance such as sealing performance in the pipe joint.

It is a schematic front view which shows one embodiment of the piping joint part test evaluation apparatus of this invention. It is a schematic plan view which shows one embodiment of the joint part test evaluation apparatus of piping of this invention. It is a schematic front view which shows another one Embodiment of the joint part test evaluation apparatus of the piping of this invention.

The pipe joint test and evaluation device of the present invention is a pipe joint test and evaluation device used when testing or evaluating the performance of the pipe joint as described above, and is connected via the joint. A horizontal direction having a fixing part for rotatably fixing the end of one of the two pipes and a horizontal movement means for moving the pipe in the horizontal direction about the fixing part as an axis At least one of a moving stage and a longitudinal / horizontal moving stage having a longitudinal / horizontal moving means for moving the other of the two pipes in the longitudinal direction and / or the horizontal direction of the pipe. It is characterized by having one stage.

Hereinafter, the pipe joint portion test evaluation apparatus according to the present invention will be described with reference to the drawings. However, the present invention is not limited only to the embodiments described in the drawings.

FIG. 1 is a schematic front view showing one embodiment of a pipe joint test and evaluation apparatus according to the present invention. FIG. 2 is a schematic plan view showing one embodiment of the pipe joint test and evaluation apparatus of the present invention.

1 and 2, one end of the pipe 1 and one end of the pipe 2 are connected via a joint 3. As the joint part 3, a flange is generally used. 1 and 2 show an embodiment when a flange (not shown) is used as the joint portion 3. When a flange is used as the joint part 3, the flange (not shown) of the pipe 1 and the flange (not shown) of the pipe 2 are connected via a seal material (not shown), for example, It is fixed by the fastening tool 3a.

The other end portion 1a of the pipe 1 is connected to a fixing portion 4 for fixing the end portion 1a rotatably. The connection between the end portion 1a of the pipe 1 and the fixed portion 4 is performed by, for example, providing an attachment portion 1b having a hole (not shown) into which the fixed portion 4 can be inserted in the end portion 1a of the pipe 1 so that the pipe 1 This can be done by inserting the fixing portion 4 into a hole provided in the mounting portion 1b so as to be rotatable about the fixing portion 4.

In the embodiment shown in FIG. 1 and FIG. 2, one end of the attachment portion 1b is attached to the end portion 1a of the pipe 1 so that the end portion 1a of the pipe 1 is sealed. The pipe 1 may not necessarily be attached to the end 1a so that the end 1a of the pipe 1 is sealed.

The fixed part 4 is fixed to a horizontal movement stage 5. The horizontal moving stage 5 is provided with a horizontal moving means 6 for moving the pipe 1 in the horizontal direction as indicated by an arrow A in FIG. As the horizontal direction moving means 6, for example, moving means comprising a screw part 6b provided with a rotating handle 6a and a screwing part 7 screwed to the screw part 6b and attached to the pipe 1 can be cited. However, the present invention is not limited to such examples. The pipe 1 can be freely moved in the direction of arrow A in FIG. 2 by appropriately rotating the rotary handle 6a provided in the horizontal direction moving means 6.

As shown in FIG. 1, a pressure cylinder 8 for applying pressure to the inside of the pipe 2 connected via the pipe 1 and the joint portion 3 is connected to the pipe 1 via a gas introduction pipe 8a. 1 is connected. It is optional in the present invention to dispose the pressurized gas cylinder 8 in the pipe 1 through the gas introduction pipe 8a. Further, in the embodiment shown in FIG. 1, a pressure gauge 9 for measuring the internal pressure is provided in the pipe 1, but it is also optional to arrange the pressure gauge 9 in the pipe 1. .

On the other hand, one end of the pipe 2 is connected to the pipe 1 through the joint 3. In the embodiment shown in FIG. 1, the other end 2a of the pipe 2 is sealed, but it is not necessarily sealed.

Longitudinal / horizontal moving means 10 for moving in the longitudinal (axial) direction of the pipe 2 and / or in the horizontal direction (perpendicular to the longitudinal (axial) direction of the pipe 2) is used as the longitudinal / horizontal moving stage 11. It is arranged.

The longitudinal / horizontal moving means 10 is provided with a horizontal moving means 12 for moving the pipe 2 in the horizontal direction. As the horizontal direction moving means 12, for example, a screw part 12 b provided with a rotating handle 12 a, and a fixing part 13 that is screwed with the screw part 12 b and fixes the pipe 2 to the longitudinal / horizontal direction moving means 10. However, the present invention is not limited to such an example. In the horizontal direction moving means 12 shown in FIGS. 1 and 2, the pipe 2 can be freely moved in the horizontal direction by rotating the rotary handle 12a.

The longitudinal / horizontal moving means 10 is provided with a longitudinal moving means 14 for moving the pipe 2 in the longitudinal (axial) direction of the pipe 2. As the longitudinal direction moving means 14, for example, there is a longitudinal direction moving means including a screw portion 14 b provided with a rotating handle 14 a and a fixing portion 13 screwed with the screw portion 14 b and attached to the pipe 2. Although mentioned, this invention is not limited only to this illustration. In the longitudinal direction moving means 14 shown in FIGS. 1 and 2, the pipe 2 can be freely moved in the longitudinal direction by rotating the rotary handle 14a.

In the present invention, both the horizontal direction moving means 12 and the longitudinal direction moving means 14 may be arranged on the longitudinal / horizontal direction moving stage 11. Of the horizontal direction moving means 12 and the longitudinal direction moving means 14, Only one of them may be arranged on the longitudinal / horizontal movement stage 11. Which of the horizontal direction moving means 12 and the longitudinal direction moving means 14 is arranged on the longitudinal / horizontal direction moving stage 11 depends on the kind of evaluation such as the sealability in the joint portion 3 between the pipe 1 and the pipe 2, the pipe 1. , 2 may be appropriately determined according to the type of the two. Usually, it is preferable that both the horizontal direction moving means 12 and the longitudinal direction moving means 14 are disposed on the longitudinal / horizontal direction moving stage 11.

In the pipe joint test and evaluation apparatus according to the present invention, both the horizontal movement stage 5 and the longitudinal / horizontal movement stage 11 may be disposed. Only one of the horizontal movement stages 11 may be provided. Which of the horizontal movement stage 5 and the longitudinal / horizontal movement stage 11 is arranged depends on the type of evaluation such as the sealability at the joint 3 between the pipe 1 and the pipe 2, the type of the pipes 1 and 2, and the like. However, it is preferable that both the horizontal direction moving stage 5 and the longitudinal / horizontal direction moving stage 11 are provided.

In the pipe joint test and evaluation apparatus shown in FIGS. 1 and 2, the horizontal movement stage 5 and the longitudinal / horizontal movement stage 11 are arranged separately, but they are connected. May be. When the horizontal movement stage 5 and the longitudinal / horizontal movement stage 11 are separately provided, the horizontal movement stage 5 and the longitudinal / horizontal movement stage 11 are both provided. In order to prevent movement when the horizontal direction moving means 6 and the longitudinal / horizontal direction moving means 10 are actuated, it is preferable to fix them to the floor (not shown).

When the pipe joint portion test evaluation apparatus shown in FIGS. 1 and 2 is used, for example, the pipe 1 and the pipe 2 are connected via the joint portion 3, and the pipe 1 and the pipe 2 are connected by the fastener 3 a. The ends of pipe 1 and pipe 2 are sealed, and pressurized gas is supplied from the pressurized gas cylinder 8 through the gas introduction pipe 8a into the pipe 1 and pipe 2. After the pressure is applied, for example, a horizontal moving stage in a state in which the pipe 1 and the pipe 2 are completely closed from the outside by using means such as a valve (not shown) disposed in the gas introduction pipe 8a. 5 is operated, and the longitudinal / horizontal moving means 10 provided on the longitudinal / horizontal moving stage 11 is operated, so that the pressurized gas leaks at the joint portion 3. It can be confirmed by the pressure gauge 9 Kill. As a result, it is possible to easily grasp whether the gas or liquid inside the pipes 1 and 2 leaks when the pipe 1 and the pipe 2 are connected to the joint portion 3. It is possible to easily test or evaluate the performance such as the sealability in the joint portions 1 and 2.

The pipe joint test and evaluation device of the present invention can perform tests or evaluations of performance such as sealability in pipe joints in the following cases, for example.

(1) When the pipe 1 and the pipe 2 are bent through the joint part 3 After the pipe 1 and the pipe 2 are attached through the joint part 3 so that the axes of the pipe 1 and the pipe 2 coincide, By rotating the rotary handle 6 a provided in the direction moving means 6 and the rotary handle 12 a provided in the horizontal direction moving means 12, the pipe 1 and the pipe 2 are bent at the joint 3, and the joint 3 Therefore, the bending angle between the pipe 1 and the pipe 2 when the gas or liquid in the pipes 1 and 2 starts to leak can be checked.

(2) When pipe 1 and pipe 2 are misaligned via joint 3 Pipe 1 and pipe 2 are attached via joint 3 so that the axes of pipe 1 and pipe 2 coincide. Thereafter, by rotating a rotary handle 12a provided in the horizontal movement means 12, a so-called misalignment in which the axes of the pipe 1 and the pipe 2 do not coincide with each other, and the gas in the pipes 1 and 2 from the joint portion 3 occurs. And the misalignment when the liquid begins to leak.

(3) When a gap is generated in the joint part 3 interposed between the pipe 1 and the pipe 2, the pipe 1 and the pipe 2 are mounted via the joint part 3 so that the axes of the pipe 1 and the pipe 2 coincide with each other. After that, by rotating the rotary handle 14a provided in the longitudinal movement means 14, the pipe 2 is pulled away from the pipe 1, and the joint when the gas or liquid in the pipes 1, 2 starts to leak from the joint portion 3 The state of the gap generated in the part 3 can be examined.

As described above, when the pipe joint test and evaluation apparatus of the present invention is used, the horizontal direction moving means 6 provided on the horizontal direction moving stage 5 and the longitudinal / horizontal direction moving stage 11 are provided. By operating the longitudinal / horizontal moving means 10, the situation of the joint part 3 when the gas or liquid in the pipes 1 and 2 leaks from the joint part 3 interposed between the pipe 1 and the pipe 2 is determined. It can be easily grasped.

Therefore, by using the joint test and evaluation device for pipes according to the present invention, the performance such as sealability in the joint 3 of the pipes 1 and 2 can be easily tested or evaluated. Before constructing the pipe 2 with the joint part 3 in practice, it is easy to determine how much misalignment, inclination, gaps, etc. occur in the joint part 3 before the gas or liquid in the pipes 1 and 2 leaks. I can grasp it. In addition, by using the pipe joint test and evaluation device of the present invention, it is possible to easily grasp how much gas or liquid in the pipes 1 and 2 leaks unless the joint part 3 is tightened with a certain tightening pressure. Is possible. Further, by using the pipe joint portion test evaluation apparatus of the present invention, the horizontal direction moving means 6 provided in the horizontal direction moving stage 5 and / or the longitudinal direction provided in the longitudinal / horizontal direction moving stage 11 are provided. -By operating the horizontal direction moving means 10, it is possible to test and evaluate various performances such as misalignment, inclination, and sealing performance due to gaps in the joint portion 3.

Thus, since the joint part test evaluation apparatus for piping according to the present invention can test and evaluate various performances such as misalignment, inclination, and sealability due to gaps in the joint part 3, for example, It can be suitably used when testing or evaluating the performance such as the sealing performance at the joints of pipes used in petroleum refining and petrochemical plants.

Furthermore, in the present invention, for example, as shown in FIG. 3, a vibration generator 15 can be disposed below the stage 11 for moving in the longitudinal and horizontal directions. FIG. 3 is a schematic front view showing another embodiment of the pipe joint portion test evaluation apparatus of the present invention.

As shown in FIG. 3, when the vibration generating device 15 is arranged below the longitudinal / horizontal movement stage 11, for example, when the pipe 2 is perturbed due to an earthquake or the like, the pipe 1 and the pipe 2 There is an advantage that it is possible to easily evaluate the sealing performance by vibration such as whether gas or liquid in the pipes 1 and 2 leaks from the joint portion 3 interposed therebetween.

As the vibration generator, for example, a small vibration tester “WaveMaker” series, a standard vibration tester “SL” series, a large amplitude horizontal vibration tester “HVM” series, a multi-axis simultaneous vibration tester “ WTS "series, etc .; manufactured by Mitutoyo Corporation, credit-type vibration test equipment" i series "," J series "," K series "," VS series "," CV series ", etc. It is not limited only to such illustration.

The longitudinal / horizontal movement stage 11 and the vibration generator 15 may be directly connected or may be connected via a connecting member 16 as shown in FIG.

DESCRIPTION OF SYMBOLS 1 Piping 1a End of piping 1b Mounting part 2 Piping 3 Joint part 3a Fastening tool 4 Fixed part 5 Horizontal moving stage 6 Horizontal moving means 6a Rotating handle 6b Screw part 7 Screw part 8 Pressurized gas cylinder 8a Gas introduction Tube 9 Pressure gauge 10 Longitudinal / horizontal moving means 11 Longitudinal / horizontal moving stage 12 Horizontal moving means 12a Rotating handle 12b Screw part 13 Fixed part 14 Longitudinal moving means 14a Rotating handle 15 Vibration generator 16 Connection member

Claims

A test and evaluation device for a joint part of a pipe used for testing or evaluating the performance of the joint part of the pipe, wherein an end of one of the two pipes connected via the joint part is A horizontal moving stage having a fixing portion for fixing in a freely rotatable manner and a horizontal movement means for moving the piping in the horizontal direction around the fixing portion as an axis, and the other piping of the two pipings A pipe joint portion test comprising at least one of a longitudinal / horizontal movement stage having longitudinal / horizontal movement means for moving the pipe in the longitudinal direction and / or horizontal direction of the pipe Evaluation device.
The piping joint portion test evaluation apparatus according to claim 1, which has both a horizontal direction moving stage and a longitudinal / horizontal direction moving stage.
3. The pipe joint test and evaluation device according to claim 1, further comprising a longitudinal / horizontal movement stage, wherein a vibration generator is disposed below the longitudinal / horizontal movement stage.