KR101866413B1

KR101866413B1 - Separate apparatus for swing check valve’s disk pin

Info

Publication number: KR101866413B1
Application number: KR1020170108839A
Authority: KR
Inventors: 김동균; 강문석
Original assignee: 한전케이피에스 주식회사
Priority date: 2017-08-28
Filing date: 2017-08-28
Publication date: 2018-06-11

Abstract

Disclosed is an apparatus for swing check valve disc pin separation. The present invention relates to a disk assembly including a disk installed in a radiation management area of a nuclear power plant, a disk arm rotatably fixing the disk and a fixing pin inserted into the disk arm, And a striking member for striking the fixing pin, wherein the striking member is struck in a direction perpendicular to the fixing pin so that the fixing pin is separated from the disc arm do.
According to the present invention, the working posture of the operator can be stabilized and the worker can be prevented from being injured. Further, by shortening the working time by using the apparatus, the process efficiency can be improved and the time for covering the worker with radiation can be reduced .

Description

[0001] The present invention relates to a swing check valve,

The present invention relates to a swing check valve disk pin separating apparatus, and more particularly, to a swing check valve disk pin separating apparatus that stabilizes an operator's posture in disassembling a pin for fixing a disk bundle to prevent injuries, And more particularly, to a swing check valve disk pin separating device capable of reducing a swing check valve disk pin.

In general, a swing check valve is installed on a pipe through which fluid flows to prevent backflow of fluid and to flow fluid only in one direction. The swing check valve is hinged to one side of the disk body, .

Meanwhile, in the case of a swing check valve disc bundle used in a radiation management area of a nuclear power plant, the swing check valve may be used in various fields. In the case of disassembling the swing check valve pin, The work is carried out by fixing the bundle with a hand and another worker pulls out the upper part of the fixing pin with a hammer so that the swing check valve may be damaged such as the worn part of the fixing pin is widened. to be.

In addition, there is a risk that the worker is injured, the work time is increased, and the operator is exposed to radioactivity because the posture of the worker disassembling the fixing pin of the swing check valve is unstable.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to stabilize the posture of the worker in disassembling the fixing pin of the swing check valve, thereby preventing the worker from being injured.

It also has another purpose in preventing the disk of the swing check valve from being damaged during operation.

It also has a different purpose in that it can shorten the working time to perform efficient work and reduce the time that the worker is exposed to radioactivity.

According to an aspect of the present invention, there is provided an apparatus for separating a disk pin of a swing check valve, including a disk installed in a radiation management zone of a nuclear power plant, a disk arm rotatably fixing the disk, And a striking member for striking the fixing pin, wherein the striking member strikes the striking pin, wherein the striking member strikes the striking pin, , The striking member is struck in a direction perpendicular to the fixing pin, so that the fixing pin is separated from the disc arm.

Preferably, the striking member includes a striking pin for applying an external force to the fixing pin, and a striking pin holder for fixing the striking pin by inserting the striking pin.

Wherein the disk arm mounting portion is connected to both sides of the disk mounting portion so that the fixing pin can be struck.

The disc mounting portion may include a disc supporting member, and the disc supporting member may be connected to one side of the disc mounting portion to support one side of the disc.

According to the present invention, the working posture of the worker is stabilized, the worker can be prevented from being injured, and the working time can be shortened by using the apparatus, thereby improving the process efficiency and reducing the time for the operator to cover the radiation.

In addition, it is possible to prevent damage to the disk and to improve the maintenance quality.

The effects of the present invention are not limited to those described above, and other effects not mentioned may be clearly recognized by those skilled in the art from the following description.

1 is a view illustrating an apparatus for separating a swing check valve disk according to an embodiment of the present invention.
FIG. 2 is a view showing a configuration of an apparatus for separating a swing check valve disk according to an embodiment of the present invention. Referring to FIG.
3 is a view illustrating an apparatus for separating a swing check valve disk according to another embodiment of the present invention.
4 is a view illustrating a configuration of an apparatus for separating a swing check valve disk according to another embodiment of the present invention.
5 illustrates an embodiment of a device for separating a swing check valve disk pin according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description, well-known functions or constructions are not described in order to avoid unnecessary obscuration of the present invention.

Also, the embodiments described below may be modified in various ways, and the embodiments described below are not intended to limit the embodiments. That is, all modifications, equivalents, and alternatives to them are to be understood.

Hereinafter, it will be described logically in accordance with the drawings.

FIG. 1 is a view showing an apparatus for separating a swing check valve disk pin according to an embodiment of the present invention, and FIG. 2 is a view showing a configuration of a swing check valve disk pin separating apparatus according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, the swing check valve disk pin separating apparatus of the present embodiment includes a disk bundle 110, a striking member 120, a disk mounting portion 130, and a disk arm mounting portion 131, Specifically, the disc bundle 110 includes a disc 111, a disc arm 113, and a fixing pin 115, and the striking member 120 includes a striking pin 121 and a striking pin holder 123 .

The disk bundle 110 includes a disk 111 installed in the radiation management area of the nuclear power plant and directly blocking the flow of the fluid, a disk arm 113 and a disk arm 113 for rotatably fixing the disk 111, And a fixing pin 113 for fixing the disc 111. [

The striking member 120 is provided with a striking pin 121 and a striking pin 121 which receive an external force on one side and directly contact the striking pin 115 to transmit an external force applied from one side to the striking pin 115 on the other side, And a striking pin holder 123 for fixing the striking pin. On the other hand, the striking pin holder 123 may include various shapes for fixing the striking pin 121 to transmit the external force in a direction perpendicular to the striking pin 115 when an external force is applied to the striking pin 121 And may have a shape that fixes the remaining portion of the impact pin 121 except the length to which the impact pin 121 moves as an external force is applied to one side of the impact pin 121. [

The disk mounting portion 130 may have various shapes that can fix the position of the disk 111 when the disk 111 is mounted and the fixing pins 115 are separated. It is possible to prevent a safety accident that may occur during the operation of separating the fixing pin 115 by shortening the time for the operator to directly contact the disk 111 by mounting the disk 111, It is possible to prevent the worker from being covered with radiation.

The disk arm mounting portion 131 may have various shapes that can fix the position of the disk arm 113 in the operation of mounting the disk arm 113 and detaching the fixing pin 115, And a shape in which the disk arm 113 is inserted into the accommodation space by forming a space capable of accommodating the arm 113. [ In addition, the disk arm mounting portion 131 is located on both sides of the disk mounting portion 130 and can firmly fix the disk together with the disk mounting portion 130 when the fixing pin 115 is separated. The effects of the above are as described above.

FIG. 3 is a view showing an apparatus for separating a swing check valve disk pin according to another embodiment of the present invention, and FIG. 4 is a view showing a configuration of a swing check valve disk pin separating apparatus according to another embodiment of the present invention. In the swing check valve disk pin separating apparatus according to the present embodiment, the contents overlapping with the above-described configuration will be omitted.

Referring to FIGS. 3 and 4, the apparatus for separating a swing check valve disk pin according to the present embodiment includes a disk supporting member 240, a coupling member 241, and a coupling groove 242.

The disc supporting member 240 is connected to one side of the disc mounting portion 230 to support a side surface of the disc 211 and more specifically, And serves to support one side of the disc 211 to prevent a safety accident that may occur due to side inclination. 1 and 2, the disk arm mounting portion 231 of this embodiment is connected to only one side of the disk mounting portion 230, but the disk 211 is fixed by the disk supporting member 240 described above, Effect can be achieved.

The engaging member 241 and the engaging groove 242 may be engaged with each other to connect the disc supporting member 240 to one side of the disc mounting portion 230. The fixing pin 221 may be detached It is possible to prevent a safety accident that may occur when the disc supporting member 240 is detached from the disc mounting portion 230. [

5 illustrates an embodiment of a device for separating a swing check valve disk pin according to an embodiment of the present invention.

5, an operator may apply an external force to one side of the striking pin 121 to separate the fixing pin 115, which contacts the other side of the striking pin 121, from the disc arm 113. Further, grooves may be formed on one side of the disk arm mounting portion 131 to easily collect the fixing pins 115 separated therefrom.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, something to do.

100,200: Swing check valve disk pin removal device
110, 210: a disc bundle
111, 211: disk
113, 213: disk arm
115, 215: Fixing pin
120, 220: striking member
121, 221:
123, 223: striking pin holder
130, and 230:
131, 231: Disk arm mounting portion
240: disk support member
241:
242: coupling groove

Claims

A disk bundle including a disk installed in a radiation management area of a nuclear power plant, a disk arm rotatably fixing the disk, and a fixing pin inserted into the disk arm,
A disc mounting portion for forming a semi-circular mounting space in which the disc is mounted;
A disk arm mounting portion connected to both sides of the disk mounting portion and having a predetermined accommodation space formed therein to insert and fix the disk arm into the accommodation space;
A striking pin contacting the fixing pin and applying an external force to the fixing pin,
And a striking pin holder having the striking pin inserted therein and supporting the striking pin so that the striking pin can move up and down,
Wherein the disk arm mounting portion is formed with a groove on one side thereof and is capable of being collected through the groove when the fixing pin is separated from the disk arm by an external force acting in a direction perpendicular to the fixing pin by the striking pin,
Wherein the disk bundle is supported by the disk mounting portion and the disk arm mounting portion.

delete

The method according to claim 1,
Wherein the disc mounting portion includes a disc supporting member,
Wherein the disc supporting member is connected to one side of the disc mounting portion to support a side surface of the disc.