JPS5912352A - Liquid collecting device for contacting medium - Google Patents

Abstract

PURPOSE:To make it possible to positively collect contacting medium without splashing droplets of liquid outside by such an arrangement wherein an elastic member which can be caused to tightly contact with an item to be inspected is provided at the bottom inside a liquid collecting pan and an absorber made of fibers is also provided between the pan and item to be inspected for receiving droplets of liquid. CONSTITUTION:To a pipe 101 which is an item to be inspected, a flaw detector 103 which is moved in the direction along an orbit 105 and in the direction along an arm 104 by a motor installed inside a drive unit 102 is installed, and contacting medium in a receiving tank 113 is caused to flow between the pipe 101 and the detector through a tube 114 by a pump 115 and the propagation of ultrasonic waves is made better. Contacting medium used enters a liquid collecting pan 106 and returns to the receiving tank 113. In the liquid collecting pan 106, an absorber made of metal fibers 110 is provided, being internally contacted and it prevents falling droplets of liquid from being splashed and at the bottom inside the pan, a sponge 111 is provided being tightly contacted with the pipe 101 and seals the flow of liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a couplant liquid receiver for an automatic ultrasonic flaw detection device, and particularly to a device that can prevent droplets from scattering and can be suitably attached to a test object.

A conventional couplant receiving device is disclosed in Japanese Patent Laid-Open No. 52-53485.

However, this case has the following drawbacks.

(a) Since there is a support plate 33 and a couplant supply tank 3 that cover the entire subject 1, the size becomes large. As a result, it cannot be applied when there is a space restriction in the space to be scanned. Moreover, if the device becomes large, it will be inferior in terms of portability, which is impractical.

(b) The larger the supply tank 3 is, the larger the amount of liquid will be, which makes transporting it more difficult and heavier, so it is necessary to increase the holding power.

(c) If there is a gap between the support plate 33 and the specimen l, when the used couplant falls into the supply tank 3, droplets may scatter on the liquid surface and wet the area around the inspection area. There is,
The structure must be designed so that no gaps are created.
Furthermore, the scattered droplets may wet the flaw detector main body 2 and cause trouble with electrical equipment such as motors.

(b) If it is applied to a vertical pipe, the adhesion between the specimen 1 and the supply tank 3 will deteriorate, and there is a possibility that the liquid will flow out from the gap.

The purpose of this study was to create a device that can collect couplant droplets without causing them to scatter outside, is compact, takes less time to attach and detach, and can also be sealed at the same time to ensure that they are taken into the collection tube. is to provide.

An elastic body that can come into close contact with the subject, a rigid band that regulates the shape of the elastic body, and a hinge and snap lock that can be attached and detached by splitting the band into two, and
The device is characterized in that metal cotton is provided between the band and the subject to prevent droplets from scattering.

Hereinafter, one embodiment of the present invention will be described with reference to FIG. 1st
The figure shows an example in which the probe 103 is attached to the distribution pipe 101 and is moved along the track 105 by a motor (not shown) built in the drive device 102 to automatically scan the probe 103. 104.

The couplant in the receiving tank 13 is caused to flow between the probe 103 and the surface of the pipe 101 via the tube 114 by a pump 115, thereby improving the propagation of the ultrasonic waves. The couplant used here enters the receiver 6106 and enters the vibrator 112.
It returns to the receiving tank 113 again via .

Here, the characteristics of the liquid receiver 106 are as follows.
Due to the metal cotton 110 provided inscribed in 06, there is no scattering such as splashing of droplets of the couplant that have fallen, and
Flow inside it and receive it again from the vibrator 112 (1tti3
In this case, the lower inner surface 11ζ of the liquid receiver dfi+06 has a sponge 111, and the purpose is to seal the flow of couplant along the pipe 101 by bringing the sponge 111 into close contact with the pipe 101. ,Also,
The sponge 111 is sloped in order to make it easier for the couplant to flow into the vibrator 112 and to reduce the force of stagnation.Furthermore, the liquid receiver 106 needs to be installed according to the inspection location. , can be opened and closed centering on the hinge 108. Also, the snap lock 109 allows for installation or removal.
Note that the hinge 107 has two purposes: to connect the liquid receiver 106, and to be able to open and close the hinge 108.

FIG. 2 is a view taken along the line A--A in FIG. 1. Liquid receiver 106
Since the sponge 111 provided on the inner surface of the liquid receiver 106 is not bonded to the liquid receiver 106 near the hinge 108, the sponge 111 comes into close contact with or separates from the inner surface of the liquid receiver 106 depending on whether the sponge 111 is opened or closed.

That is, in the state of use, they are in close contact and can seal the couplant.

In addition, the sponge 111 has a snap lock 109 and a hook 119.
This allows them to come into close contact at the abutting portion and seal this area as well.

According to this embodiment, it is possible to prevent the scattering of droplets due to splashing, and at the same time, it is possible to carry out the installation/detachment time, and the lecture is easy.

The present invention is limited only to the examples r, d',
Receiver 120 with an inclination as shown by the two-dot chain line in FIG.
It is also possible to apply the present invention to horizontally radial piping, which would be more effective if Figure 3 shows the drive Wl#102 installed on the horizontal pipe 130.
The probe 103 scans in the circumferential direction and the axial direction by moving along the trajectory 105 and along the arm 104. In this case, the couplant is received by a tray 133 attached to the pipe 130 by a fitting 131 and collected via a vibrator 134. There are several wire meshes 132 inside this saucer 13.3! This prevents droplets of the couplant from scattering.It is also applicable not only to piping but also to other structural materials. is not limited to metal cotton or wire mesh, but is made of a material that does not impregnate the liquid and does not create a liquid surface, and
If it has an opening corresponding to one descendant, 1: l, -m
,,For this reason, a material such as plastic can also be used.

The sponge 111 in FIG. 1 may also be made of other elastic materials without departing from the purpose.

Although the method of circulating the couplant has been described in the explanation, the method is not limited to this.

According to the present invention, (a) droplets of couplant can be collected without scattering them around them; (b) Since the scattering of droplets can be completely prevented, the saucer can be made smaller or shallower. (c) Since it is easy to install and remove, the installation and removal time can be shortened.

(b) It is possible to seal the couplant and prevent it from scattering at the same time. There are other effects.

[Brief explanation of the drawing]

Fig. 1 is a partially cross-sectional side view of one embodiment of the present invention, Fig. 2 is a view taken along the line A-A in Fig. 1, and Fig. 3 is a side view for explaining another embodiment. It is. 106...Liquid receiver, 108...Hinge, 109...
・Snap lock, 110...metal cotton, 111...sponge, 112...vibrator.

Claims (1)

[Claims] 1. In a couplant recovery device for ultrasonic flaw detection,
1. A liquid receiving device for a couplant, comprising: a liquid receiver installed near a flaw detection location; and a filler made of a non-impregnable material to prevent droplets from scattering on the inner surface of the liquid receiver.