KR102088757B1 - A filter fastening device for filter box for gas radioactive waste disposal - Google Patents

Abstract

The present invention relates to a filter fastening device for a filter box for disposing of radioactive gas waste, which is detachably embedded in respective filter chambers to quickly mount and remove filters purifying contaminated air with one touch and to adjust a mounting force according to the degree of wear of packing, thereby ensuring improved airtightness of filter mounting portions. The filter fastening device comprises: a support fixed and installed while being distanced from a filter mounting frame in parallel, and having a bolt assembly hole formed through both ends of a surface facing the filter mounting frame; a plurality of shaft support bolts each having a head portion with a shaft assembly hole formed therethrough and having screw portion screwed to the bolt assembly hole of the support; a locking/unlocking shaft integrally having a plurality of locking protrusion portions formed on the outer circumferential surface of both ends thereof in a cam shape and protruding outward, having both ends rotatably assembled with the shaft assembly hole, and locking/unlocking the filters on the filter mounting frame while being rotated forward and backward between the shaft support bolts; and a handle connected to one end of the locking/unlocking shaft and rotating the locking/unlocking shaft forward and backward 0° or 90° to fix and mount the filters on the filter mounting frame or cancel the fixing and mounting.

Description

A filter fastening device for filter box for gas radioactive waste disposal}

The present invention relates to a filter fastening device for a filter box for the treatment of gaseous radioactive waste, and more specifically, a fixed type installed at a facility using a radioactive isotope, such as a nuclear power plant, a hospital, a research institute, and an industrial site. The filter chambers of the filter box composed of a plurality of filter chambers, which are divided into movable type, which are easily moved and installed, and are detachably interlocked to remove gaseous radioactive substances in the air, can be quickly and easily fastened to each other while ensuring the tightness of the fastening area. The present invention relates to a box fastening device for a filter box for treating gaseous radioactive waste so as to have a structure capable of reliably preventing the radioactive material collected in the filter box from leaking to the outside through the fastening portion.

In general, in a facility using a radioactive isotope such as a nuclear power plant, a gas radioactive material leaks occasionally from the air, and a fixed filter box or a constant filter box installed at the site is always required to purify the air containing the gas radioactive material. Each time, the movable filter box installed on the site is moved to remove radioactive substances from the air, and the filter box is composed of two or more filter chambers with built-in filters inside each, and each filter box is sequentially driven by a box fastening device. As a result, it is hermetically assembled so that the inner space communicates.

In the conventional filter box for treating gaseous radioactive waste, each filter chamber is fastened to each other by bolts or clips, and the filter box having a structure in which the filter chamber is fastened by bolts can have a fastening state, but a plurality of bolts. Since it is very difficult to assemble and disassemble the filter chamber, the assembly and disassembly of the filter chamber can be carried out quickly and the assembly and disassembly of the filter chamber can be quickly performed, but the elasticity of the clap is reduced. And there is a problem that a defect in the airtight state may occur due to a gap in the fastening part due to wear of the airtight packing of the fastening part.

Such a conventional filter box for treating gaseous radioactive waste is published in Korean Utility Model No. 20-0204848 (Registration Utility Model No. 2000. 12. 01.).

The present invention has been devised in consideration of the above-described conventional problems, and its purpose is to be able to quickly mount and remove filters that purify contaminated air by being detachably embedded in each filter chamber with one touch. It is to provide a filter fastening device for a filter box for treating gaseous radioactive waste that can maintain an excellent airtightness of a filter mounting portion by adjusting a mounting force according to a degree of wear.

The object of the present invention is a fixed mounting spaced parallel to the filter mounting frame, the support having a bolt assembly hole formed through both ends of the opposite side of the filter mounting frame; A bolt having a head portion through which an axial assembly hole is formed, and a plurality of axial support bolts in which a screw portion is screwed into a bolt assembly hole of the support; A shaft having a plurality of locking protrusions integrally protruding outwardly in a cam shape on the outer circumferential surfaces of both ends, the both ends being rotatably assembled with the shaft assembly hole, and rotating the filter forward and backward between the shaft support bolts to filter the filter on the filter mounting frame. A locking / unlocking shaft for locking / unlocking; It is connected to one end of the locking / unlocking shaft, and the locking / unlocking shaft is rotated forward and backward at 0 ° or 90 °, and the filter is fixed on the filter mounting frame or comprises a handle for releasing the fixing. It can be achieved by a filter fastening device for a filter box for treating gaseous radioactive waste.

The filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention can be installed and removed with a single touch at a mounting position in the filter chamber only by hand-held operation by a worker without bolting for fixing the filter, as well as packing According to the degree of wear, it is possible to maintain the filter in an airtight state by simply adjusting the mounting force to close the filter, and thus has the effect of reliably preventing the contaminated air from leaking into the gap between the filter and the filter chamber.

1 is a front view schematically showing a filter box for treating gaseous radioactive waste composed of a plurality of filter chambers, each of which is detachably embedded therein, with the doors of each filter chamber removed.
Figure 2 is a partially enlarged cross-sectional view of the configuration and the operating state of the filter fastening device for a filter box for gas radioactive waste treatment according to the present invention, in cross-section,
3 is a partial view showing a handle side provided at one end of the locking / unlocking shaft of the filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention shown in FIG. 2,
Figure 4 is a partially enlarged assembly diagram showing the structure and mutual assembly of the support, shaft support bolts and locking / unlocking shafts among the filter fastening devices for the filter box for treating gaseous radioactive waste according to the present invention shown in Figure 2,
Figure 5 is an exploded perspective view showing another embodiment of the support for supporting the shaft support bolt of the filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention,
6 is a filter fastening device for filter box for gas radioactive waste treatment according to the present invention is applied, each filter filter box for gas radioactive waste treatment consisting of a plurality of filter chambers are detachably built in each filter It is a front view schematically shown with the door of the chamber removed.
7 is an operational state perspective view showing an internal configuration of a filter chamber to which a filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention and a filter are detached,
8 is a perspective view showing a filter pressing member of a filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention,
9 to 11 are operating state diagrams illustrating the operating state of the filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention.

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

Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical idea of the present invention, these can be replaced at the time of the present application It should be understood that there may be various equivalents and variations.

The filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention will be described in detail with reference to FIGS. 1 to 5 of the accompanying drawings.

1 to 4, the filter fastening device 20 for a filter box for treating gaseous radioactive waste according to the present invention is detachably embedded in a filter box 100 for purifying air contaminated with gaseous radioactive materials. The filter 300 is intended to be airtight and detachably mounted, and the filter box 100 is composed of a plurality of filter chambers 110 and 120 which are assembled to be detachably connected to each other, and connected and assembled to be interconnected. In each filter chamber 110 and 120, the filter 300 is airtight and detachably mounted.

The filter fastening device 20 for a filter box for treating gaseous radioactive waste according to the present invention includes a support 21, a plurality of shaft support bolts 22, a locking / unlocking shaft 23, and a handle 24 It consists of.

The support 21 is fixedly installed spaced parallel to the filter mounting frame 200, and has a bolt assembly hole 21a that is formed through both ends of a surface facing the filter mounting frame 200.

The plurality of shaft support bolts 22 are bolts having a head portion 22a through which the shaft assembly hole 22a-1 is formed, and a screw portion is screwed to the bolt assembly hole 21a of the support 21.

The locking / unlocking shaft 23 is a shaft having a plurality of locking protrusions 23a integrally projecting outwardly in a cam shape on the outer circumferential surfaces of both ends, and both ends are rotatably assembled with the shaft assembly holes 22a-1 The filter 300 is locked / unlocked on the filter mounting frame 200 while being rotated forward and backward between the shaft support bolts 22.

The handle 24 is connected to one end of the locking / unlocking shaft 23, and rotating the locking / unlocking shaft 23 forward and backward to 0 ° or 90 ° to filter 300 to the filter mounting frame 200. Fix it on or release it.

Referring to Figure 3, the handle portion 24 has a working hole (24a) that is formed through the outer end, and is connected at right angles to one end of the locking / unlocking shaft (23), and a round bar having a handle ball at both ends As, it is composed of a handle (24b) that is assembled to be rotated and operated back and forth in the operating hole (24a).

Referring to FIG. 5, another embodiment of the support 21 is to allow the assembly length of the shaft support bolt 22 for adjusting the filter mounting force to be more precisely and easily adjusted, and a plurality of block assembly grooves ( 21b) and a plurality of filter mounting force adjustment units 25.

The plurality of block assembly grooves (21b) is formed in a concave cut so as to open the front and rear on the upper surface of the support (21, the bolt assembly hole (21a) is formed).

The plurality of filter mounting force adjustment units 25 are composed of a fixed block 25a and a length adjustment member 25b.

The fixed block (25a) is a hexahedron, has a semi-circular cross-section and is concave outward along the inner circumferential surface of the length adjustment member assembly groove (25a-1) and the adjustment member assembly groove (25a-1) formed concave on the upper surface. It has a stopper assembly groove (25a-2) to be formed, and has a stopper protrusion (25a-3) protruding outwardly along the outer and lower surfaces of both ends, and is detachably fitted to the block assembly groove (21b).

The length adjustment member (25b) is a tube having a bolt assembly hole (25b-1) having a threaded portion along the inner circumferential surface, integrally having a stopper protrusion (25b-2) protruding outwardly along the outer circumferential surface, the axial support bolt Removably screwed with (22), and is removably fitted into the adjustment member assembly groove (25a-1) of the fixed block (25a), the stopper protrusion (25b-2) is a stopper assembly groove (25a- It is detachably fitted to 2).

6 to 11, another embodiment of a filter fastening device for a filter box for treating gaseous radioactive waste according to the present invention further includes a filter pressing member 210 in the present invention.

The filter pressing member 210 is assembled with the surface of the filter 300 on the side of the locking / unlocking shaft 23, and the pressing force of the locking / unlocking shaft 23 according to the rotational operation of the locking / unlocking shaft 23 is applied. When it occurs, it is intended to maintain the good locking state of the filter 300 by allowing the generated pressing force to be uniformly applied to the entire surface of the filter 300, and its configuration is a square frame, with the filter assembly flange 210a. The handle flange 210b is integrally supported, and is elastically supported by a plurality of elastic members 220.

The filter assembly flange 210a is formed to be bent at a right angle in the direction of the filter 300 to the upper and lower ends and the rear ends of the filter pressing member 210 in the form of a square frame, and is detachably assembled with the filter 300.

The handle flange 210b is bent at a front end of the filter pressing member 210 at right angles to the opposite direction of the filter 300, and the filter pressing member 210 is built into the filter chamber 110 and 120. In the case of work to remove or to the outside, the operator can easily hold the hand and perform the work.

The elastic member 220 is a tension spring, when the locking / unlocking shaft 23 is in the unlocked state, the filter pressing member 210 is maintained so that the filter pressing member 210 is separated from the filter 300. The locking / unlocking shaft 23 is elastically supported.

The filter fastening device 20 for a filter box for treating gaseous radioactive waste according to the present invention having the above-described configuration includes a support 21, a shaft support bolt 22, a locking / unlocking shaft 23, and a handle Consisting of (24), as the operator rotates the handle 24 forward and backward, the locking / unlocking shaft 23 is interlocked, thereby causing the locking protrusion 23a of the locking / unlocking shaft 23 to filter 300 ) To the filter mounting frame 200 of the filter chamber, or by releasing the pressing, the wear degree of the packing for airtightness while the filter 300 is easily mounted or removed in a one-touch manner to the filter mounting frame 200 in the filter chamber According to this, it is possible to adjust the pressing strength of the filter, that is, the filter mounting force, thereby significantly improving the assembling and separating work of the filter 100 while maintaining excellent airtightness regardless of the degree of wear of the packing.

As described above, in the present invention, specific matters such as specific components and the like have been described by limited embodiments and drawings, but they are provided only to help a more comprehensive understanding of the present invention, and the present invention is not limited to the above embodiments , Anyone having ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the scope of the claims as well as the claims described below belong to the scope of the spirit of the present invention. .

20: filter fastening device 21: support
21a: Bolt assembly hole 21b: Block assembly groove
22: Shaft support bolt 23: Locking / unlocking shaft
24: Handle 25: Filter mounting force adjustment unit
100: filter box 110, 120: filter chamber
200: filter mounting frame 210: filter pressing member
220: elastic member 300: filter

Claims (8)

A support 21 having a bolt assembly hole 21a that is fixedly installed at intervals parallel to the filter mounting frame 200 and is formed through both ends of a surface opposite to the filter mounting frame 200; A bolt having a head portion (22a) through which the shaft assembly hole (22a-1) is formed, a plurality of shaft support bolts (22) in which a screw portion is screwed to the bolt assembly hole (21a) of the support (21); A shaft having a plurality of locking projections (23a) integrally projecting outwardly in the cam shape on the outer circumferential surface of both ends, both ends are rotatably assembled with the shaft assembly hole (22a-1), between the shaft support bolt (22) A locking / unlocking shaft 23 for locking / unlocking the filter 300 on the filter mounting frame 200 while rotating in the forward and reverse directions; The locking / unlocking shaft 23 is connected to one end, and the locking / unlocking shaft 23 is rotated forward and backward to 0 ° or 90 ° to securely mount or fix the filter 300 on the filter mounting frame 200. As a filter fastening device for a filter box for the treatment of gaseous radioactive waste consisting of a handle portion 24 to release the mounting,
The support 21,
A plurality of block assembly grooves 21b concavely cut so as to open the front and rear sides on the upper surface of the support 21;
The block assembly groove (21b), each of which is detachably fitted and assembled, is screw-assembled with the shaft support bolt (22) to adjust the assembly length with the shaft support bolt (22) to adjust the mounting force for the filter (300) A filter fastening device for a filter box for treating gaseous radioactive waste, comprising two filter mounting force adjustment units (25).
delete According to claim 1,
The filter mounting force adjustment unit 25,
As a hexahedron, a length adjusting member assembly groove 25a-1 having a semi-circular cross section and concavely formed on an upper surface, and a stopper assembly groove 25a concavely formed outward along the inner circumferential surface of the adjusting member assembly groove 25a-1 -2), a fixed block (25a) having a stopper protrusion (25a-3) that protrudes outwardly along the outer and lower surfaces of both ends and is removably fitted into the block assembly groove (21b);
A tube having a bolt assembly hole (25b-1) having a threaded portion along the inner circumferential surface, integrally having a stopper protrusion (25b-2) protruding outwardly along the outer circumferential surface, and detachably screwed to the shaft support bolt (22) Assembled, detachably fitted into the adjustment member assembly groove (25a-1) of the fixed block (25a), the stopper protrusion (25b-2) is detachably fitted into the stopper assembly groove (25a-2) Filter fastening device for a filter box for the treatment of gaseous radioactive waste, characterized in that it consists of a length adjustment member (25b).
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