JP2014226952A - Equipment repairing member, equipment checking member, and liquid contacting surface repairing method and liquid contacting surface checking method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an equipment repairing member in liquid and a liquid contacting surface repairing method using the equipment repairing member.SOLUTION: An equipment repairing member includes a base 3 having an operating surface 2, an air bubble holding part 4 which is a circumference of the operating surface side of the base 3, is formed by projecting to the operating surface side of the base 3, and holds air bubbles in the operating surface side, and a function projection 5 which is in the operation surface side of the base 3 and is provided in a region surrounded with the air bubble holding part 4. The function projection 5 has projection height lower than that of the air bubble holding part 4 and an equipment repairing material is held in a protrusion end part 6 of the function projection 5.

Description

The present invention relates to an equipment repairing member or equipment inspection member suitable for repairing or inspecting a wall surface or pipe wall in contact with a liquid, particularly when a material whose characteristics deteriorate due to contact with the liquid is used. The present invention relates to a facility repair member and a facility inspection member that can hold materials suitable for repair and inspection.
Further, the present invention relates to a liquid contact surface repair method and a liquid contact surface inspection method using the equipment repair member and the equipment inspection member, and particularly to an inner surface portion of a reactor pressure vessel and a storage pool of nuclear fuel rods. The present invention relates to a liquid contact surface repair method and a liquid contact surface inspection method for mechanical equipment placed in an extreme environment where it is extremely difficult for an operator to work directly.

  The present inventor has proposed an adhesive structure and an underwater moving device as members suitable for repairing or inspecting a wall surface or pipe wall in contact with a liquid (see Patent Document 1 and Non-Patent Document 1). . Since such an adhesive structure has only a relatively simple function, it can be mass-produced and reduced in cost, and is suitable for maintenance work and monitoring work of mechanical equipment.

  On the other hand, there is a demand for repair and inspection work for machinery and equipment in extreme environments that are extremely difficult for workers to work directly, such as the inner surface of the reactor pressure vessel and the storage pool for nuclear fuel rods. It is expanding. However, since the level of radioactivity is high inside the nuclear reactor, a device using a μ processor such as an intelligent robot malfunctions and cannot withstand practical use. Even when remotely operated, the equipment installed inside the reactor is contaminated with radioactivity, so it will be necessary to keep it away from the environment where people live and keep it for a long time until the radioactivity level drops. .

JP 2011-246076 A

Naoe Hosoda and Stanislav N. Gorb, “Underwater locomotion in a terrestrial beetle: combination of surface de-wetting and capillary forces”, Proceedings of the Royal Society B, 4236-4242, 2012, published online

  By the way, for example, when the bonded structure of Patent Document 1 is used for a reactor pressure vessel, if the water flow speed is slow or the residence time becomes long, bubbles may not be properly retained. Therefore, there is a problem that the desired effect cannot be obtained. In addition, when repairing or inspecting a wall surface or pipe wall in contact with liquid, in order to move the adhesive structure in water along the wall surface or piping surface, it corresponds to the unevenness of the surface and the intended repair. And a structure that can perform inspection functions.

The present invention solves the above-mentioned problems, and a first object is to repair a facility repairing member that can maintain a material suitable for repairing even when a material such as an adhesive whose properties deteriorate when contacted with water is used. Another object of the present invention is to provide a facility inspection member capable of holding a material suitable for inspection.
The second object is to provide a liquid contact surface repair method and a liquid contact surface inspection method suitable for use in liquid supply facilities such as water supply / drainage facilities and liquid storage facilities.
The third object is to provide an equipment repairing member and an equipment inspection member suitable for achieving the following fourth object together with the first object.
The fourth purpose is a liquid contact suitable for use in mechanical equipment placed in extreme environments where it is extremely difficult for workers to work directly, such as the inner surface of the reactor pressure vessel and the storage pool of nuclear fuel rods. It is to provide a surface repair method and a liquid contact surface inspection method.

  In order to achieve the first object, the equipment repair member of the present invention includes a base 3 having a working surface 2 and a peripheral edge on the working surface side of the base 3 as shown in FIGS. 1 and 4 to 7, for example. And is formed so as to protrude toward the working surface side of the base portion 3 and holds a bubble on the working surface side, and is surrounded by the bubble holding portion 4 on the working surface side of the base portion 3. A functional projection 5 provided in the region, the functional projection 5 having a projection height lower than the projection height of the bubble holding portion 4, and a facility repair material at the projection end of the functional projection 5. It is characterized by holding.

In the equipment repairing member of the present invention, the bubble holding part 4 preferably has the rigid support part 7 arranged discretely on the peripheral edge of the base part 3 on the working surface 2 side.
In the equipment repair member of the present invention, more preferably, for example, as shown in FIG. 1, the bubble holding part 4 adheres a rigid support part 7 having a height lower than the function protrusion part 5 and the equipment repair material. The contact portion 9 that comes into contact with the target surface, the bending portion 8 that connects the rigid support portion 7 and the contact portion 9, and the contact portion 9, the bending portion 8, or the contact portion 9 and the working portion side of the bending portion 8. It is good to have a bubble pinning part to do.

In the equipment repair member of the present invention, preferably, for example, as shown in FIGS. 5 and 6, the rigid support portion 7 has a height in a state in which the equipment repair material is held at the projecting end portion of the functional projection portion 5, and The equipment repair material held at the protruding end of the functional protrusion 5 is not exposed to the fluid side when the bubbles are held by the bubble holding portion 4 while being substantially the same height or slightly lower. It should be configured.
In the equipment repair member of the present invention, preferably, for example, as shown in FIG. 14, the bubble holding portion 4 has a rigid support portion that is continuously arranged in a wall shape on the peripheral edge of the base portion 3 on the working surface 2 side. Good.
In the equipment repairing member of the present invention, preferably, the rigid support portion 7 has an opening for releasing the elastic deformation when the bubbles are elastically deformed in a state where the bubbles are held by the bubble holding portion 4.
In the equipment repair member of the present invention, preferably, the bubble pinning portion is made of a material having a large contact angle with respect to the liquid into which the equipment repair member is inserted.

In order to achieve the second object, the liquid contact surface repair method of the present invention includes a step (S100) of covering a surface of a repair target site with a hydrophobic material, for example, as shown in FIG. A step of retaining a predetermined amount of equipment repair material and air bubbles at a predetermined location of the member for repair (S102), a step of supplying the equipment repair member upstream of the fluid flowing through the repair target location (S104), and repair The step (S106) in which the equipment repair member adheres to the target location, and the air bubbles held by the air bubble holding portion 4 spread due to wetting with the hydrophobic material, and the equipment repair material held on the protruding end portion 6 of the functional projection portion 5 It is good to have a step (S108) of contacting and attaching to a repair object place.
In the liquid contact surface repair method of the present invention, it is preferable that a facility repair member attached to a repair target location further has a step (S110) of separating from the location.

  In order to achieve the first object, the equipment inspection member according to the present invention includes, for example, a base 3 having a working surface 2 and a peripheral edge on the working surface side of the base 3 as shown in FIGS. 1 and 4 to 7. And is formed so as to protrude toward the working surface side of the base portion 3 and holds a bubble on the working surface side, and is surrounded by the bubble holding portion 4 on the working surface side of the base portion 3. And a functional projection 5 provided in the broken region. The functional projection 5 has a projection height lower than the projection height of the bubble holding portion 4, and an inspection element is provided at the projection end of the functional projection 5. It is characterized by holding.

  In order to achieve the second object, the liquid contact surface inspection method of the present invention includes a step (S200) of covering the surface of the inspection object site with a hydrophobic material, for example, as shown in FIG. A step (S202) of holding an inspection element and air bubbles at a predetermined position of a member for inspection, a step of supplying a facility inspection member upstream of the fluid flowing through the inspection target location (S204), and an inspection of the facility at the inspection target location. And a step of attaching an inspection member (S206), and a step of attaching an inspection element to a location to be inspected (S208).

  In order to achieve the third object, the equipment repair member of the present invention is, as shown in FIGS. 9, 12, and 13, for example, the equipment repair member described above, further made of a magnetic material, and repaired. It has a magnetic attachment / detachment part configured to attach / detach magnetic to / from the target place.

  In order to achieve the fourth object, the liquid contact surface repair method according to the present invention is a step in which a repair portion magnetic material that generates a strong magnetic field is mounted on the back surface of a repair target location as shown in FIG. 10 (S300). ), A step (S302) of holding a predetermined amount of equipment repair material and air bubbles at a predetermined location of the equipment repair member, and an equipment repair member is supplied to the upstream side of the fluid flowing through the location to be repaired. It comprises a step (S304), a step (S306) in which the equipment repair member adheres to the repair target location, and a step (S308) in which the equipment repair material is mounted on the repair target location.

In the liquid contact surface repair method of the present invention, preferably, as shown in FIG. 11, for example, the step of mounting the equipment repair material at the repair target location further increases the magnetic force generated by the repair portion magnetic material, and functions. It is good to have the step (S308) which the equipment repair material hold | maintained at the protrusion part of the projection part 5 is mounted | worn in the repair object place.
In the liquid contact surface repair method of the present invention, preferably, as shown in, for example, FIG. 11, the repair member magnetic material generated by extinguishing or reducing the magnetic force generated and attached to the repair target location is It is good to have the step (S310) which leaves | separates from a place.

In order to achieve the third object, the equipment inspection member of the present invention is the equipment inspection member described above, further made of a magnetic material, and configured to be magnetically attached to and detached from a repair target location. It has the part.
In order to achieve the fourth object, in the liquid contact surface inspection method of the present invention, for example, as shown in FIG. 16, an inspection portion magnetic material that generates a strong magnetic field is attached to the back surface of the inspection object location (S400). ), A step of holding the inspection element and air bubbles in a predetermined location of the equipment inspection member (S402), and a step of supplying the equipment inspection member upstream of the fluid flowing through the inspection target location (S404). The apparatus has a step of attaching the equipment inspection member to the inspection target place (S406) and a step of attaching the inspection element to the inspection target place (S408).

According to the equipment repair member of the present invention, even when a material such as an adhesive whose characteristics deteriorate when it comes into contact with water, the material is protected by bubbles and can be transported to a repair target location. In addition, according to the equipment inspection member of the present invention, even when a material such as an adhesive whose properties deteriorate when contacted with water is used for bonding the inspection element and the tube wall, the adhesive is protected by bubbles. Can be transported to the repair location.
According to the liquid contact surface repair method using the equipment repair member of the present invention and the liquid contact surface inspection method using the equipment inspection member, the purpose of the equipment repair material and the inspection element is based on the interaction between the hydrophobic material and the bubbles. Since it is transported to the place and mounted on the wall surface, it is suitable when the repair place and inspection place are determined in advance, and is suitable for use in liquid supply equipment such as water supply / drainage equipment and liquid storage equipment.
Moreover, according to the liquid contact surface repair method using the equipment repair member of the present invention and the liquid contact surface inspection method using the equipment inspection member, the object is an equipment repair material or an inspection element using a magnetic material. Since it is transported to the site and mounted on the wall, it can be dealt with even if the repair location or inspection location is determined for a later reason, and workers can work directly like the inner surface of the reactor pressure vessel or the storage pool of nuclear fuel rods. It is suitable for use in machinery and equipment placed in an extreme environment that is extremely difficult to do.

It is a block diagram explaining the member for equipment repair which concerns on the 1st Embodiment of this invention. It is a flowchart explaining the liquid contact surface repair method which concerns on the 1st Embodiment of this invention. It is a block diagram explaining the method to adhere | attach an equipment repair material on the surface of a repair object location using the equipment repair member which concerns on embodiment of FIG. It is a block diagram explaining the member for equipment repair which concerns on the modified example of the 1st Embodiment of this invention. It is a block diagram explaining the member for equipment repair which concerns on the modified example of the 1st Embodiment of this invention. It is a block diagram explaining the member for equipment repair which concerns on the modified example of the 1st Embodiment of this invention. It is a block diagram explaining the member for equipment repair which concerns on the modified example of the 1st Embodiment of this invention. It is a flowchart explaining the liquid contact surface inspection method which concerns on the 1st Embodiment of this invention. It is a block diagram explaining the member for equipment repair using the magnetic material which concerns on the 2nd Embodiment of this invention. It is a flowchart explaining the liquid contact surface repair method which concerns on the 2nd Embodiment of this invention. It is a block diagram explaining the method to adhere | attach an equipment repair material on the surface of a repair object location using the equipment repair member which concerns on embodiment of FIG. It is a block diagram explaining the member for equipment repair using the magnetic material which concerns on the modified example of the 2nd Embodiment of this invention. It is a block diagram explaining the member for equipment repair using the magnetic material which concerns on the modified example of the 2nd Embodiment of this invention. It is a block diagram explaining the member for equipment repair using the magnetic material which concerns on the modified example of the 2nd Embodiment of this invention. It is a block diagram explaining the method to adhere | attach an equipment repair material on the surface of a repair object location using the equipment repair member which concerns on the deformation | transformation Example of FIG. It is a flowchart explaining the liquid contact surface inspection method which concerns on the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. For convenience of explanation, the equipment repairing member of the present invention will be described as an example, and the equipment inspection member will be appropriately replaced with the explanation of the equipment repairing member, and the structure specific to the equipment inspection member will be explicitly described. I will mention it.

(First embodiment)
It is a block diagram explaining the member for equipment repair which concerns on the 1st Embodiment of this invention, (A) is a top view, (B) is a cross section of the front direction which follows the AA line of (A), (C). Shows details of the functional contact.
As shown in FIG. 1, the equipment repairing member 1 includes an action surface 2, a base portion 3, a bubble holding portion 4, a functional protrusion portion 5, and a functional contact portion 6. The working surface 2 is a surface that exhibits equipment repairing among the outer surfaces of the equipment repairing member 1. The base 3 is a member forming the main body of the equipment repairing member 1 and has the working surface 2 on one side, but may have two or more working surfaces. The bubble holding unit 4 is a peripheral edge on the working surface side of the base 3 and is formed to protrude to the working surface side of the base 3 and holds bubbles on the working surface side.
The functional protrusion 5 is provided on the working surface side of the base 3 and is provided in a region surrounded by the bubble holder 4. The functional protrusion 5 has a protrusion height lower than the protrusion height of the bubble holder 4. Have The functional contact part 6 is a part for holding the equipment repair material at the projecting end of the functional projection part 5 and is used for repairing the equipment by contacting the pipe wall or wall surface of the liquid supply equipment or liquid storage equipment that requires equipment repair. This is a part to be repaired using materials. The functional contact portion 6 desirably has a shape that facilitates holding the equipment repair material, and the shape of the flat surface is determined so as not to interfere with the adjacent functional contact portion 6 and the bubble holding portion 4. The shape of the flat surface is typically determined so as to have a diameter or outer side length of about 20% to 80% of the interval on the basis of the interval with the functional contact portion 6 and the bubble holding portion 4.

The base 3 and the bubble holding part 4 are made of a material having a large contact angle with respect to the liquid 5 in which the equipment repairing member 1 is submerged. When the liquid 5 is water or seawater, the material for the equipment repairing member 1 can be a resin having high water repellency. The contact angle of the water-repellent material with respect to the water 5 is approximately 90 ° or more. As such a highly water-repellent resin, a silicone resin, a fluororesin, or a hydrophobic polymer can be used.
The bubble holding part 4 includes, for example, a rigid support part 7, a bent part 8, a contact part 9, and a bubble pinning part. The rigid support portions 7 are protrusions that are discretely arranged on the periphery of the base portion 3 on the working surface 2 side. Each of the rigid support portions 7 has a diameter of, for example, about 600 μm. The diameter is formed so as to be gradually reduced. The height of the rigid support portion 7 from the top surface of one base portion 3, that is, the length of the protrusion is about 2.5 mm. The rigid support portion 7 has a height lower than that of the functional protrusion 5. The contact portion 9 is in contact with the target surface to which the equipment repair material is attached, and here extends in a direction substantially perpendicular to the rigid support portion 7. Since the contact portion 9 has a shape that expands toward the outside of the base portion 3, the extending direction of the facing contact portion 9 is opposite. The bent portion 8 connects the rigid support portion 7 and the contact portion 9, and absorbs a difference in posture between the rigid support portion 7 and the contact portion 9 in the axial direction. The bubble pinning portion is located on the contact surface 9, the bent portion 8, or the working surface side of the contact portion 9 and the bent portion 8, and pins the ends of the bubbles held by the bubble holding portion 4.

Pinning means that even if the size of the bubble held by the bubble holding portion 4 changes, the end of the bubble is located on the contact surface 9, the bent portion 8, or the contact surface 9 and the working surface side of the bent portion 8. Means that it does not move substantially in the axial direction.
The number of protrusions of the bubble holding portion 4 is determined so that a bubble made of a gas such as air to be described later, that is, a space in which bubbles can be sufficiently held, is secured with respect to the base portion 3, preferably 3 to 16 Although it is between, it does not matter if it exceeds 16. The base 3 has a disk shape. The functional protrusions 5 are provided on approximately 5 × 5 lattice points, but the four points that are the four corners of the 5 × 5 lattice points are omitted because the base portion 3 has a disc shape, and the functional protrusions 5 are omitted. 21 are provided. Accordingly, the number of functional contact portions 6 is 21 as that of the functional projection portions 5.
In addition, the specific gravity of the equipment repairing member 1 is such that it flows in the flowing water without floating or sinking in the fluid used in the equipment to be repaired in the state where the air bubble holding part 4 contains air bubbles. Determine. In plastics typically used, polyethylene resin has a specific gravity of 0.91 to 0.92, polypropylene resin of 0.90 to 0.91, and polystyrene resin of about 1.04 to 1.09.

A liquid contact surface repair method using the equipment repair member configured as described above will be described. FIG. 2 is a flowchart for explaining the liquid contact surface repair method according to the first embodiment of the present invention. FIG. 3 is a configuration diagram for explaining a technique for adhering a material for equipment repair to the surface of a place to be repaired using the equipment repair member according to the first embodiment of the present invention, and (A) is for equipment repair. The state in which the member is flowing in the pipe line, (B) is the state in which the equipment repair member is attached to the surface of the pipe wall repair target location, (C) is the equipment repair material that is installed and the pipe repair is in the pipe wall It shows the state of being adhered to the surface of the place.
In FIG. 3, water 10 flows as fluid inside the pipe 12. The direction of water flow is indicated by an arrow 13. A hydrophobic portion 11 covered with a hydrophobic material is provided on the surface of the repair target location on the tube wall. A predetermined amount of equipment repair material and air bubbles are held in the air bubble holding part 4 of the equipment repair member 1.

  In the liquid contact surface repair method of the present invention, as a precondition, the surface of the repair target location is covered with a hydrophobic material (S100). Further, a predetermined amount of equipment repair material and air bubbles are held in the air bubble holding portion 4 of the equipment repair member 1 (S102). This predetermined amount is determined based on the amount of equipment repair material that the equipment repairing member 1 can carry in the pipeline, and should be an amount that is protected by air bubbles, but is necessary for repairing the pipe wall It is desirable that a sufficient amount can be secured.

  Next, the equipment repair member 1 is supplied to the upstream side of the fluid flowing through the repair target place (S104). Then, as shown in FIG. 3 (A), the equipment repair member 1 flows in the pipeline. Then, when the equipment repair member 1 approaches the repair target location, as shown in FIG. 3B, the hydrophobic material covering the surface of the repair target location effectively acts on the bubbles, and the equipment repair is performed. The member 1 adheres due to the interaction between the retained bubbles and the hydrophobic material at the repair target site (S106). And the bubble which the bubble holding | maintenance part 4 hold | maintains by the wetting with a hydrophobic material spreads, and as shown in FIG.3 (C), the equipment repair material hold | maintained at the protrusion part 6 of the function protrusion part 5 is a repair object place. Is attached in contact with (S108). Regarding the interaction between the bubbles and the hydrophobic material at the repair target location, as described in paragraph 0021 of Patent Document 1, the surface tension and Laplace force of the bubbles existing in the closed space, and the bubbles were pulled. This is caused by the change ΔP in the internal pressure due to the volume change over time.

  When the equipment repair material carried by the equipment repairing member 1 covers the repair target location, the equipment repair member attached to the repair target location is detached from the location (S110), so that the pipeline is repaired by the equipment. Blocking by the working member 1 is prevented. In the state where the material for equipment repair covers the place to be repaired, the adhesive force between the equipment repair material and the functional contact portion 6 of the equipment repair member 1 is lowered by the action of running water, and the equipment is repaired by the power of running water. The member 1 leaves the repair target location and flows downstream.

(Modification of the first embodiment)
4-7 is a block diagram explaining the member for equipment repair which concerns on the modified example of the 1st Embodiment of this invention, (A) is a top view, (B) is AA of (A). The cross section of the front direction which follows a line is shown.
In the modified embodiment of FIG. 4, the base 3 has a square plate shape. As in the embodiment of FIG. 1, each protrusion of the bubble holding portion 4 has a rigid support portion 7, a bent portion 8, a contact portion 9, and a bubble pinning portion. The number of protrusions of the bubble holding portion 4 is eight because of the relationship provided at the four corners of the base portion 3 and the intermediate points of the four corners. The functional protrusions 5 are provided on approximately 5 × 5 lattice points, and 25 functional protrusions are provided. Accordingly, the number of functional contact portions 6 is 25, the same as the number of the functional protrusions 5.

  In the modified embodiment of FIG. 5, the base 3 has a disk shape. The protrusion of the bubble holding part 4 has a rigid support part 7 and a bubble pinning part, and has an upright shape in which the bent part 8 and the contact part 9 are not provided. The bubble pinning portion corresponds to the vicinity of the tip of the rigid support portion 7. Eight protrusions of the bubble holding part 4 are provided on the circumference of the base part 3 at equal intervals. As in the embodiment of FIG. 1, the functional protrusions 5 are provided on approximately 5 × 5 lattice points. However, because the base 3 has a disk shape, four points that are the four corners of the 5 × 5 lattice points are provided. Omitted, 21 functional protrusions 5 are provided. Accordingly, the number of functional contact portions 6 is 21 as that of the functional projection portions 5.

  In the modified embodiment of FIG. 6, the base 3 has a square plate shape. Similar to the modified embodiment of FIG. 5, each protrusion of the bubble holding portion 4 is an upright shape having a rigid support portion 7 and a bubble pinning portion. The number of protrusions of the bubble holding portion 4 is eight because of the relationship provided at the four corners of the base portion 3 and the intermediate points of the four corners. The functional protrusions 5 are provided on approximately 5 × 5 lattice points, and 25 functional protrusions are provided. Accordingly, the number of functional contact portions 6 is 25, the same as the number of the functional protrusions 5.

  In the modified embodiment of FIG. 7, the base 3 has a square plate shape. As in the embodiment of FIG. 1, each protrusion of the bubble holding portion 4 has a rigid support portion 7, a bent portion 8, a contact portion 9, and a bubble pinning portion. The number of protrusions of the bubble holding portion 4 is eight because of the relationship provided at the four corners of the base portion 3 and the intermediate points of the four corners, but the bending direction faces one direction in consideration of ease of peeling. ing. In order to avoid interference with the protrusions of the bubble holder 4, the functional protrusions 5 are provided on 3 × 5 lattice points, and 15 functional protrusions are provided. Accordingly, the number of the functional contact portions 6 is the same as the number of the functional projection portions 15. By reducing the area occupied by the functional protrusion 5, the volume of bubbles that can be held by the bubble holder 4 is increased.

(Equipment inspection parts)
Subsequently, a first embodiment of the facility inspection member of the present invention will be described. This 1st Embodiment respond | corresponds to 1st Embodiment of the member for equipment repair mentioned above. In the equipment inspection member, an inspection element for inspecting the state of the tube wall or the wall surface is mounted. For example, an image sensor, an ultrasonic sensor, a vibration sensor, a flow velocity sensor, a surface roughness sensor, or the like is used as the inspection element. Installed. These inspection elements may be sensors capable of transmitting a necessary detection signal alone, or may be a device of a type that detects the movement of the detection unit mounted on the tube wall as a two-body type from the outside of the tube wall. Since it is difficult to feed power inside the tube wall, it is preferable that the inspection element has a passive RF element function. In this case, the tube wall transmits radio waves from an external transmitter / receiver to the inspection element. The state inside the tube wall detected by the inspection element is detected.
The inspection element is mounted on the functional contact portion 6 of the equipment repair member shown in FIGS. 1 and 4 to 7 when the shape thereof is similar to a predetermined amount of equipment repair material. On the other hand, when the shape of the inspection element is larger than the equipment repair material and smaller than the air bubbles held by the air bubble holding section 4, the function protrusions 5 and functions of the equipment repair member shown in FIGS. It is mounted on the site where the sex contact portion 6 exists.

A liquid contact surface inspection method using the equipment inspection member configured as described above will be described. FIG. 8 is a flowchart for explaining the liquid contact surface inspection method according to the first embodiment of the present invention. In the liquid contact surface inspection method of the present invention, as a precondition, first, the surface of the inspection object place is covered with a hydrophobic material (S200). Next, the inspection element and air bubbles are held at predetermined locations on the facility inspection member (S202).
Subsequently, the facility inspection member is supplied to the upstream side of the fluid flowing through the inspection target place (S204). Then, as shown in FIG. 3 (A), the facility inspection member flows in the pipeline. Then, when the equipment inspection member approaches the inspection target location, as shown in FIG. 3B, the hydrophobic material that covers the surface of the inspection target location effectively acts on the bubbles, and the equipment inspection member Adheres due to the interaction between the bubbles to be held and the hydrophobic material at the location to be inspected (S206). Then, the bubbles held by the bubble holding portion 4 spread due to wetting by the hydrophobic material, and the inspection element held by the protruding end portion 6 of the functional protrusion portion 5 becomes the inspection target location as shown in FIG. Wear it in contact (S208).
When the inspection element carried by the facility inspection member adheres to the inspection target location, the facility inspection member attached to the inspection target location is detached from the location (S210). Since the inspection element has a strong adhesive force, the equipment inspection member flows away in the running water, but the inspection element maintains a state of being adhered to the tube wall.

(Second Embodiment)
FIG. 9 is a configuration diagram for explaining a facility repair member using a magnetic material according to the second embodiment of the present invention, in which (A) is a plan view and (B) is an AA line in (A). The cross section of the front direction which follows is shown. In FIG. 9, the same components as those shown in FIGS. 1 and 4 to 7 described above are denoted by the same reference numerals, and description thereof is omitted.
In 2nd Embodiment, although the equipment repair member 1 of the Example shown in FIG. 4 is made into a basic form, it has a magnetic desorption part further. The magnetic attachment / detachment portion is made of a magnetic material and is configured to perform magnetic attachment / detachment with respect to a repair target location. In the embodiment of FIG. 9, a magnetic material is embedded in the functional contact portion 6 as a magnetic detachable portion. The magnetic body may be a ferromagnetic material, for example, and a ferromagnetic material such as iron, cobalt, or nickel is used.

FIG. 10 is a flowchart for explaining the liquid contact surface repair method according to the second embodiment of the present invention. FIG. 11: is a block diagram explaining the method to adhere | attach an equipment repair material on the surface of a repair object location using the equipment repair member which concerns on the 2nd Embodiment of this invention, (A) is for equipment repair The state in which the member is flowing in the pipe line, (B) is the state in which the equipment repairing member is attached to the surface of the repair target location of the pipe wall, and (C) is the state in which the cracking of the pipe wall is filled with the repair material. , (D) shows a state in which the filled repair material is solidified, and (E) shows a state in which the equipment repair member is detached from a crack in the pipe wall.
11, the same components as those shown in FIG. 3 described above are denoted by the same reference numerals, and description thereof is omitted. Cracks (defects) 16 are present on the inner wall of the tube 12. Therefore, the magnet 15 is attached to the outer wall of the pipe 12 where the crack 16 exists. The number of the magnets 15 is one at the stage of attaching the equipment repairing member, but the number of the magnets 15 is increased to 2 when the equipment repairing material of the equipment repairing member is filled.

In the liquid contact surface repair method of the present invention, as a precondition, as shown in FIG. 11 (A), a magnet 15 as a repairing part magnetic material that generates a strong magnetic field is mounted on the back surface of the repair target location (S300). . At this time, the magnet 15 is used as a single piece to generate a magnetic force to such an extent that the equipment repair member adheres to the tube wall. Further, a predetermined amount of equipment repair material and air bubbles are held in the air bubble holding portion 4 of the equipment repair member (S302).
Next, the equipment repair member is supplied to the upstream side of the fluid flowing through the repair target place (S304). Then, as shown in FIG. 11 (A), the equipment repair member flows in the pipeline. When the equipment repairing member approaches the repair target location, the magnet 15 provided in the vicinity of the repair target location is effective with respect to the magnetic attachment / detachment portion of the functional contact portion 6 as shown in FIG. Acting, the equipment repair member adheres to the repair target location (S306).

  Next, the number of magnets 15 is increased to two to increase the magnetic force (S308). Then, as shown in FIG. 11 (C), the equipment repair material held at the projecting end of the functional projection 5 is attached to the repair target location, and the working surface comes into contact with the tube wall. In this case, the equipment repairing member comes into direct contact with the pipe wall 12, water is removed, and the crack 16 is filled with the repairing liquid as the equipment repairing member. In this way, the equipment repair material is attached to the repair target location (S308).

  Next, as shown in FIG. 11D, one or all of the magnets 15 are peeled off to eliminate or reduce the magnetic force generated by the repaired portion magnetic material (S310). Then, the working surface of the equipment repair member is separated from the pipe wall, and the repair liquid is solidified. Finally, as shown in FIG. 11E, when the repair liquid is solidified, the magnet 15 is removed from the tube wall 12. Then, the equipment repair member attached to the repair target location is detached from the location (S310).

(Modification of the second embodiment)
FIGS. 12-14 is a block diagram explaining the member for equipment repair which concerns on the modified example of the 2nd Embodiment of this invention, (A) is a top view, (B) is AA of (A). The cross section of the front direction which follows a line is shown.
In the modified embodiment of FIG. 12, the equipment repairing member 1 of the embodiment shown in FIG. 4 is a basic shape, but further has a magnetic detachable portion embedded in the functional protrusion 5. Since the functional protrusion 5 can take a larger shape than the functional contact portion 6, it is suitable when it is necessary to increase the magnetism of the magnetic desorption portion. Here, a total of nine of the four corners and their midpoints out of the 25 that serve as the functional protrusions 5 are also used as the magnetic detachable portions. Note that the functional contact portion 6 may or may not be provided with respect to the functional protrusion 5 serving as the magnetic detachable portion.
In the modified embodiment of FIG. 13, the equipment repairing member 1 of the embodiment shown in FIG. 4 is a basic shape, but further has a magnetic detachable portion embedded in the base 3. Since the base 3 can be made larger in shape than the functional contact 6 and the functional contact 5, it is suitable when it is necessary to further increase the magnetism of the magnetic desorption part. In addition, the magnetic detachable portion of the base 3 may be one in which a plate material made of a flat ferromagnetic material is attached to the base 3.

In the modified example of FIG. 14, the bubble holding part 4 has a rigid support part continuously arranged in a wall shape on the periphery of the base part 3 on the working surface 2 side. In this embodiment, the rigid support portion may be provided with an opening for releasing the elastic deformation when the bubble is elastically deformed in a state where the bubble is held by the bubble holding portion 4. Since the rigid support portion is continuously arranged in the shape of a wall around the periphery of the base 3 on the side of the working surface 2, the functional contact portion 5 and the functional contact portion 6 are located in a region surrounded by the wall shape. It will be.
Therefore, the equipment repair member 1 of this embodiment can carry a larger equipment repair member 18. In this case, the conveyed large-sized equipment repair member 18 can be attached to the surface of the defective portion 16 of the tube wall with water droplets.

  FIG. 15 is a configuration diagram for explaining a technique for adhering equipment repair material to the surface of a repair target location using the equipment repair member according to the modified embodiment of FIG. 14, and FIG. 15A shows the equipment repair member. (B) shows the state where the equipment repair member is attached to the surface of the pipe wall repair target location, and (C) shows the state where the equipment repair member is detached from the crack on the pipe wall. ing. For example, in the procedure shown in FIG. 11, it is suitable for use in a finishing process after filling a crack on a pipe wall with a repair liquid as a facility repair member.

Next, a procedure for performing the liquid contact surface repair method of the present invention using the equipment repair member of FIG. 14 will be described with reference to FIGS. 11 and 15.
In the liquid contact surface repair method of the present invention, as a precondition, as shown in FIG. 15A, a magnet 15 as a magnetic material for a repair portion that generates a strong magnetic field is mounted on the back surface of a repair target location (S300). . Further, the large-sized equipment repair member 18 and the air bubbles are held in the air bubble holding section 4 of the equipment repair member (S302).
Next, the equipment repair member is supplied to the upstream side of the fluid flowing through the repair target place (S304). Then, as shown in FIG. 15 (A), the equipment repair member flows in the pipeline. When the equipment repair member approaches the repair target location, as shown in FIG. 15B, the magnet 15 provided in the vicinity of the repair target location effectively acts on the magnetic detachment portion of the equipment repair member. Then, the equipment repair member adheres to the repair target location (S306). Then, the large-sized equipment repair member 18 is affixed to the surface of the defective portion 16 on the tube wall with water droplets.

  Next, as shown in FIG. 15C, the magnet 15 is peeled off to eliminate or reduce the magnetic force generated by the repaired portion magnetic material (S310). Then, the equipment repair member leaves from the place (S310) and flows away under running water. At this time, the large-sized equipment repairing member 18 maintains the state of being attached to the surface of the defective portion 16 of the tube wall, so that it can be used in the finishing process.

(Equipment inspection parts)
Next, a second embodiment of the facility inspection member of the present invention will be described. This 2nd Embodiment respond | corresponds to 2nd Embodiment of the member for equipment repair mentioned above. That is, a facility inspection member using a magnetic material for transporting the inspection element in running water.
The inspection element of the equipment inspection member is mounted on the functional contact portion 6 of the equipment repair member shown in FIGS. 9 and 12 to 14 when the shape is similar to that of the predetermined amount of equipment repair material. The On the other hand, when the shape of the inspection element is larger than the equipment repair material and smaller than the air bubbles held by the air bubble holding section 4, the functional protrusions 5 and functions of the equipment repair member shown in FIG. 9 and FIGS. It is mounted on the site where the sex contact portion 6 exists.

  A liquid contact surface inspection method using the equipment inspection member configured as described above will be described. FIG. 16 is a flowchart for explaining a liquid contact surface inspection method according to the second embodiment of the present invention. In the liquid contact surface inspection method of the present invention, as a precondition, as shown in FIGS. 11 (A) and 15 (A), first, a magnet 15 as a magnetic material for an inspection part that generates a strong magnetic field is located at an inspection target location. It is mounted on the back side (S400). Next, the inspection element and air bubbles are held at predetermined locations of the facility inspection member (S402).

  Subsequently, the facility inspection member is supplied to the upstream side of the fluid flowing through the inspection target place (S404). Then, as shown in FIG. 11 (A) and FIG. 15 (A), the equipment repair member flows in the pipeline. When the equipment repairing member approaches the repair target location, as shown in FIGS. 11B and 15B, the magnet 15 provided in the vicinity of the repair target location is a magnetic detachable portion of the equipment repairing member. Therefore, the facility inspection member adheres to the inspection target location (S406). Then, the inspection element is attached to the inspection target place (S408).

  In this case, when mounting the inspection element with increasing magnetic force, the number of magnets 15 is increased to two to increase the magnetic force. Then, as shown in FIG. 11C, the inspection element held by the protruding end of the functional protrusion 5 is attached to the inspection target location, and the working surface comes into contact with the inner wall surface of the tube 12. In this case, the equipment inspection member is in direct contact with the inner wall surface of the pipe 12, the water is removed, the inspection element is adhered to the pipe wall, and the inspection target signal from the crack 16 can be detected by the inspection element; Become. In this way, the inspection element is attached to the inspection target location (S408).

  Next, as shown in FIG. 11D, one or all of the magnets 15 are peeled off to eliminate or reduce the magnetic force generated by the inspection portion magnetic material. Then, the working surface of the equipment inspection member is separated from the tube wall, and the adhesive of the inspection element is solidified. Finally, as shown in FIG. 11 (E), the magnet 15 is removed from the tube wall 12 when the adhesive of the testing element is solidified. Then, the equipment inspection member attached to the inspection target location is detached from the location (S410).

  Next, when the inspection element 18 is affixed to the surface of the defective portion 16 on the tube wall with water droplets and the inspection element is attached (S408), the inspection element 18 is defective with respect to the tube wall with water droplets. It is affixed to the surface. Next, as shown in FIG. 15C, the magnet 15 is peeled off to eliminate or reduce the magnetic force generated by the repaired portion magnetic material (S410). Then, the equipment repair member separates from the place (S410) and flows away under running water.

  In the above-described embodiment of the present invention, the equipment repair member and the equipment inspection member of the present invention have been described by taking resin as an example, but the present invention is not limited to this. As long as it has a specific gravity that can be adsorbed on the tube wall or wall surface by moving in water, a resin reinforced with magnetic metal powder or magnetic metal fiber can be used, or a porous magnetic material filled with resin can be used. .

According to the equipment repair member and the equipment inspection member of the present invention, even when a material such as an adhesive whose characteristics deteriorate when it comes into contact with water is used for bonding the inspection element and the tube wall, the material becomes a bubble. It is protected and can be transported to a repair target location, and is suitable for use in a liquid supply facility such as a water supply / drainage facility or a liquid storage facility, or when a repair location or inspection location is determined beforehand.
In addition, the liquid contact surface repair method using the equipment repair member of the present invention and the liquid contact surface inspection method using the equipment inspection member use the magnetic material to the place where the equipment repair material and the inspection element are intended. Since it is transported and mounted on the wall, mechanical equipment placed in extreme environments where it is extremely difficult for workers to work directly, such as the inner surface of the reactor pressure vessel and the nuclear fuel rod storage pool, It is suitable for use when the repair location or inspection location is determined for some reason.

1: Equipment repair member, equipment inspection member 2: Working surface 3: Base part 4: Bubble holding part 5: Functional protrusion part 6: Functional contact part (protrusion part)
10: Running water 12: Pipe 15: Magnet 16: Crack (defect)
18: Large equipment repair material

Claims (17)

A base having a working surface;
A bubble holding portion that is a peripheral edge of the base portion on the working surface side, protrudes toward the working surface side of the base portion, and holds bubbles on the working surface side;
A functional projection provided on the working surface side of the base and in a region surrounded by the bubble holding unit;
And the functional projecting portion has a projecting height lower than the projecting height of the bubble retaining portion, and the facility repairing material is retained at the projecting end portion of the functional projecting portion. .   The said bubble holding | maintenance part has the rigid support part discretely arrange | positioned in the periphery of the said working surface side of the said base, The member for equipment repair of Claim 1 characterized by the above-mentioned. The bubble holding part is
A rigid support portion having a height lower than that of the functional protrusion;
A contact portion in contact with a target surface to which the equipment repair material is attached;
A bent portion connecting the rigid support portion and the contact portion;
The bubble pinning portion located on the working surface side of the contact portion, the bent portion, or the contact portion and the bent portion,
The equipment repairing member according to claim 1, wherein the equipment repairing member is provided. The rigid support portion has a height that is substantially the same as or slightly lower than the height in a state in which the equipment repair material is held at the protruding end of the functional protrusion,
The apparatus repairing material is configured so that the equipment repair material held at the projecting end portion of the functional projection portion is not exposed to the fluid side in a state where the bubble is held by the bubble holding portion. Equipment repair parts as described.   The said bubble holding | maintenance part has the rigid support part continuously arrange | positioned at the periphery of the said working surface side of the said base in the shape of a wall, The member for equipment repair of Claim 1 characterized by the above-mentioned.   The said rigid support part has the opening part which escapes the said elastic deformation, when the said bubble elastically deforms in the state which hold | maintained the bubble by the said bubble holding part, The equipment repair of Claim 5 characterized by the above-mentioned. Element.   4. The equipment repairing member according to claim 3, wherein the bubble pinning portion is made of a material having a large contact angle with respect to a liquid into which the equipment repairing member is inserted. Coating the surface of the location to be repaired with a hydrophobic material;
Retaining a predetermined amount of equipment repair material and air bubbles at a predetermined location of the equipment repair member according to claim 1;
Supplying the equipment repairing member to the upstream side of the fluid flowing through the repair target place;
A step of attaching the equipment repair member to the repair target place;
A facility repair material held at the projecting end of the functional projection contacting and mounting the repair target material;
A liquid contact surface repair method comprising:   The liquid contact surface repair method according to claim 8, further comprising a step of separating the facility repair member attached to the repair target location from the location. A base having a working surface;
A bubble holding portion that is a peripheral edge of the base portion on the working surface side, protrudes toward the working surface side of the base portion, and holds bubbles on the working surface side;
A functional projection provided on the working surface side of the base and in a region surrounded by the bubble holding unit;
The facility projection member has a projection height lower than the projection height of the bubble holding portion, and holds an inspection element at the projection end of the function projection portion. Coating the surface of the area to be inspected with a hydrophobic material;
A step of holding the inspection element and air bubbles at a predetermined location of the equipment inspection member according to claim 10;
Supplying the equipment inspection member to the upstream side of the fluid flowing through the inspection target place;
The facility inspection member adheres to the inspection target location;
Attaching the inspection element to the inspection target location;
A liquid contact surface inspection method characterized by comprising: The equipment repair member according to claim 1,
Furthermore, the equipment repair member characterized by having a magnetic desorption part which consists of magnetic materials and was comprised so that the magnetic attachment or detachment with respect to the repair object place might be performed. A step in which a magnetic material for generating a strong magnetic field is attached to the back surface of the location to be repaired;
Retaining a predetermined amount of equipment repair material and air bubbles at a predetermined location of the equipment repair member according to claim 12;
Supplying the equipment repairing member to the upstream side of the fluid flowing through the repair target place;
A step of attaching the equipment repair member to the repair target place;
Attaching the equipment repair material to the repair target location;
A liquid contact surface repair method comprising:   The step of attaching the equipment repair material to the repair target location further increases the magnetic force generated by the repair portion magnetic material so that the equipment repair material held at the projecting end of the functional projection is the repair target location. The liquid contact surface repair method according to claim 13, further comprising a step of mounting in contact with the liquid.   Furthermore, it has the step which extinguishes or reduces the magnetic force which the repair part magnetic material generate | occur | produces, and the said member for an equipment repair adhering to the said repair object location leaves | separates from the said location. Liquid contact surface repair method as described in 4. The facility inspection member according to claim 10,
A facility inspection member comprising a magnetic detachable portion made of a magnetic material and configured to be magnetically attached to and detached from a location to be repaired. A step in which a magnetic material that generates a strong magnetic field is attached to the back surface of the inspection target location;
A step of holding the inspection element and air bubbles at a predetermined location of the equipment inspection member according to claim 16;
Supplying the equipment inspection member to the upstream side of the fluid flowing through the inspection target place;
The facility inspection member adheres to the inspection target location;
Attaching the inspection element to the inspection target location;
A liquid contact surface inspection method characterized by comprising: