KR20200045147A - A radiation measuring and nuclide analysis equipment for an used empty drum - Google Patents

Abstract

An object of the present invention is to perform radiation (radioactivity) measurement and nuclide analysis at the same time quickly and accurately without prior work of flattening an empty drum to be measured for the radiation (radioactivity) or taking a sample (specimen). A radiation (radioactivity) measurement and nuclide analysis apparatus for a used empty drum of the present invention includes a first inspection plate, a second inspection plate, a radiation (radioactivity) measuring device, an origin detection laser beam means, an equipment installation support, a nuclide analysis device, and a control and manipulation device.

Description

A radiation measuring and nuclide analysis equipment for an used empty drum}

The present invention relates to a radiation (performance) measurement and nuclide analysis device for the used drum, more specifically, when measuring the radiation (performance) for the used drum drum, radiation (performance) measurement without damaging the ball drum and The present invention relates to a radiation (capacity) measurement and a nuclide analysis device for a used empty drum having a structure capable of simultaneously performing nuclide analysis quickly and accurately.

In general, radiation (capacity) measurement and nuclide analysis are performed in order to classify and dispose of used drums generated in nuclear facilities or radioactive waste handling facilities as self-disposal or radioactive waste.

The conventional method of measuring radiation (performance) for a ball drum is composed of a radiation (performance) measurement step for a ball drum and a nuclide analysis step.

The radiation (performance) measuring step is ① removing the cover of the target ball drum, ② separating the bottom of the ball drum from the drum body, and cutting and flattening the ball drum body with the cover and bottom removed in the longitudinal direction. Afterwards, it is carried out manually by an operator using a portable radiation (performance) meter.

When the radiation (performance) measurement step is completed as described above, a nuclide analysis step is performed.

The nuclide analysis step randomly collects a sample of a set number per unit area (a disc specimen of about 2 inch diameter) from the cover, bottom, and drum body of the target ball drum, and uses the nuclide analysis equipment to collect the sample. Analyze is performed.

Based on the measurement values obtained through the radiation (performance) measurement step and the nuclide analysis step, the target empty drum is classified as a vehicle disposal object or a radioactive waste object.

However, in the conventional method for measuring radiation (capacity) and nuclide analysis for a previously used ball drum, the bottom part is separated to flatten the drum body of the ball drum, and then the drum body is cut in the longitudinal direction, and then flattened. Preliminary work is needed to measure radiation (performance), and there is a high risk of contamination diffusion occurring during such pre-production, and a worker performs manual radiation (performance) measurement using a portable radiation (performance) detector. Because the measurement of the contamination site is inaccurate and requires a long time for the measurement work, multiple samples (species for nuclide analysis) are taken from the target cover, bottom, and drum body for nuclide analysis after the radiation (activity) measurement task is completed. Since it had to be collected, there was a problem that work productivity was significantly reduced.

Currently, there has been no patent document directly related to the present invention in the art, and for the analysis of nuclides for radioactive waste drums, the patent was filed on November 21, 1997, and the patent was registered on May 20, 2002 There is a registered patent No. 10-0339038 entitled 'Korea Electric Power Corporation' (invention name: radioactive waste nuclide analysis system).

The present invention has been devised in consideration of the conventional problems as described above, and its purpose is to perform radiation (performance) in its original state without a process such as prior work of flattening a ball drum to be measured for radiation (performance) or taking a sample (sample). ) Simultaneously, quickly and accurately perform measurement and nuclide analysis, and accurately detect the location information of the contaminated area, so that it can be accurately and quickly classified as a target for self-disposal or radioactive waste on the target drum, and the degree of contamination diffusion is also unknown. It is to provide a radiation (capacity) measurement device for the used empty drum that can be prevented.

The object of the present invention is a first inspection plate for performing radiation (capacity) measurement and nuclide analysis on the outer and inner circumferential and bottom surfaces of the empty drum with the cover removed; A second inspection plate for performing radiation (capacity) measurement and nuclide analysis on the lower surface of the empty drum and the cover removed from the empty drum; Radiation (performance) measuring device, which is selectively disposed on the first and second inspection plates to measure radiation (performance) on the outer and inner circumferential surfaces and bottom surfaces of the empty drum, and the cover removed from the empty drum and the lower surface of the empty drum Wow; A starting point detection laser beam means which is selectively disposed on the first and second inspection plates to detect a measurement reference point for the outer circumferential surface and the lower surface of the empty drum, and the cover removed from the empty drum; A device installation support for arranging and supporting the radiation (performance) measuring device and the starting point detection laser beam means; A nuclide analysis device selectively disposed on the first and second inspection plates to perform nuclide analysis on the outer and inner circumferential surfaces and bottom surfaces of the empty drum, and the cover and the bottom surface of the empty drum removed from the empty drum; It is connected to the radiation (performance) measurement device, the starting point detection laser beam means and the nuclide analysis device, respectively, and controls the operation of the radiation (performance) measurement device, the starting point detection laser beam means and the nuclide analysis device, and the radiation (performance) measurement device and It can be achieved by a radionuclide measurement and nuclide analysis device for a used empty drum, characterized in that it consists of a control and manipulation device that outputs and stores the measurement and analysis information received from the nuclide analysis device.

The radiation (capacity) measurement and nuclide analysis device for the used empty drum according to the present invention is used to remove the empty drum used in the nuclear power plant and radioactive isotope use facility without dismantling and processing work or collecting samples. It is possible to accurately and quickly perform radioactivity measurement on the cover of drums and empty drums, radiation dose rate measurement, location information of contaminated areas, and nuclide analysis on contaminated areas at the same time. It is possible to accurately and quickly classify as a waste object, and it has an effect of preventing contamination diffusion.

1 is a perspective view schematically showing a first inspection plate of a radiation (performance) measurement and nuclide analysis apparatus for a used empty drum according to the present invention,
FIG. 2 is a perspective view schematically showing a second inspection plate of a radiation (capacity) measurement and nuclide analysis apparatus for a used empty drum according to the present invention,
3 is an assembled state perspective view showing the configuration and operating state of the empty drum rotating unit among the first inspection plate of the radionuclide measurement and nuclide analysis device for the used empty drum according to the present invention,
Figure 4 is an assembled state perspective view showing another embodiment of the ball drum rotating unit shown in Figure 3,
5 is a perspective view showing the configuration and operation of the empty drum and the lid transport unit of the second inspection plate of the radionuclide analysis and nuclide analysis device for the used empty drum according to the present invention,
Figure 6 is an exploded perspective view showing the configuration and operating state of the equipment installation support in the radiation (performance) measurement and nuclide analysis device for the used empty (empty) drum according to the present invention,
7 is a perspective view showing a radiation (capacity) for the used drum (empty) according to the present invention and a pollution level measuring instrument installation member of the radiation (capacity) measurement device of the nuclide analysis device,
8A and 8B show the configuration and equipment installation support of the pollution level measuring instrument installation member equipped with the first and second pollution level measurement means of the radiation (performance) measurement and nuclide analysis device for the used empty drum according to the present invention. It is a front view and an assembly state diagram showing the assembly structure with the horizontal mounting base of
8C is an operational state diagram showing an intermediate support equipped with a third pollution level measuring means of a radiation (capacity) measurement device of a radiation (capacity) measurement and nuclide analysis device for a used empty drum according to the present invention,
9 is an installation state diagram showing the configuration and installation state of the starting point detection laser means of the radiation (capacity) measurement and nuclide analysis device for the used empty drum according to the present invention,
10a and 10b is a cross-sectional view and a plan view showing the configuration and operating state of the radionuclide analysis device of the radiation (capacity) measurement and nuclide analysis device for the empty drum used in accordance with the present invention,
FIG. 11 is a schematic explanatory diagram showing the configuration of the first and third pollution measurement means of the radiation (performance) measurement device of the radiation (activity) measurement and nuclide analysis device for the used empty drum according to the present invention. ,
12 is a schematic explanatory diagram showing the configuration of a second contamination level measuring means of a radiation (performance) measurement device of a radioactive (performance) measurement and nuclide analysis device for a used empty drum according to the present invention,
13 is a radiation (capacity) for the empty drum used in accordance with the present invention and the configuration and control of the control and manipulation device of the nuclide analysis device, respectively connected to the control device and transmits measurement information, and operation is controlled It is a block diagram illustrating the mutual organic correlation with each component.
14 and 15 is a use state diagram illustrating the state of use of the radiation (performance) measurement and nuclide analysis device for the used empty (empty) drum 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 configuration shown in the embodiments and drawings described in this specification are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and at the time of this application, they can be replaced. It should be understood that there may be various equivalents and variations.

The radiation (performance) measurement and nuclide analysis apparatus 10 for the used empty drum according to the present invention will be described in detail with reference to FIGS. 1 to 16.

1 to 16, the radiation (performance) for a used drum according to the present invention and the nuclide analysis apparatus 10 according to the present invention include a first inspection plate 20 and a second Inspection plate 30, radiation (capacity) measurement device 40, starting point detection laser beam means 50, equipment installation support 60, nuclide analysis device 70, control and operation device (80) ).

Referring to Figures 1 and 15, the first inspection plate 20 is to perform radiation (capacity) measurement and nuclide analysis on the outer and inner circumferential and bottom surfaces of the ball drum 100 from which the cover 100a is removed, It is composed of a base 21 and a ball drum rotating unit 22.

The base 21 is a flat plate, the first guide rails 21a and 21b spaced apart from each other on the upper surface and the second guide rails 21a and 21b installed in parallel. It has a guide rail (21c), it is disposed horizontally on the bottom surface.

1, 3 and 15, the empty drum rotating unit 22 is mounted between the first guide rail 21a and the second guide rail 21c of the base 21, and the cover 100a ) Is used to mount the used empty drum 100 on the upper surface and rotate at a set speed, and includes a drum rotation table 22a and a driving means 22b.

The drum rotating table 22a is a disk, has a flat upper surface and a lower surface integrally having a gear portion 22a-1 protruding downward, and the first and second guide rails of the first inspection plate 20 It is rotatably mounted between (21a) and 21c.

The driving means (22b) has a gear (22b-1) engaged with the gear portion (22a-1) of the drum rotation table (22a), and rotates the drum rotation table (22a) forward and reverse.

The driving means (22b) is provided with a gear (22b-1) on the rotating shaft that meshes with the gear portion (22a-1) of the drum rotary table (22a), is connected to the control and operation device 80 to control and manipulate It is a drive motor whose operation is controlled by the device 80.

Referring to FIG. 4, another embodiment of the driving means 22b includes a driving motor 22b-2 and a gearbox 22c.

The drive motor 22b-2 is equipped with a gear 22b-1 on a rotating shaft, and is connected to a control and manipulation device 80 to control operation by the control and manipulation device 80.

The gear box 22c has a gear 22c-1 engaged with the gear portion 22a-1 of the drum rotation table 22a on one side and a gear 22b of the drive motor 22b-2 on the other side. -1) is provided with a gear (22c-2) engaged with, and transmits the driving force of the drive motor (22b-2) to the gear portion (22a-1) of the drum rotation table (22a) the drum rotation table ( Turn 22a) forward and reverse.

2 and 15, the second inspection plate 30 performs radiation (capacity) measurement and nuclide analysis on the lower surface of the empty drum 100 and the cover 100a removed from the empty drum 100. As an implementation, the base 31 and the empty drum and cover transfer unit 32 are included.

The base 31 is a flat plate, parallel to the 1-1 guide rails 31a and 31b and the 1-1 guide rails 31a and 31b, which are spaced apart from each other on the upper surface. It has a 2-1 guide rail (31c) to be installed, the 1-1 guide rail (31a) (31b) is on one axis with the first guide rail (21a) (21b) of the first inspection plate (20) Located horizontally on the bottom surface adjacent to the first inspection plate 20 such that the 2-1 guide rail 31c is located on one axis with the second guide rail 21c of the first inspection plate 20. Is placed.

2, 5 and 15, the empty drum and cover transfer unit 32 is between the 1-1 guide rail (31a) and the 2-1 guide rail (31c) of the base 31, As installed in parallel with the 1-1 guide rail 31a, the used drum 100 and the cover 100a detached from the ball drum 100 are detachably fixedly mounted and transferred to the set speed. , Conveying conveyor (32a), the empty drum and cover transport tray (32b), and is composed of a driving means (32c).

The transport conveyor 32a is a pair of conveyors having an endless track of a belt or chain, and the base 31 between the 1-1 and 2-1 guide rails 31a and 31c of the second inspection plate 30 Spaced apart from each other on the upper surface of the 1-1 guide rail (31a) is installed in parallel.

The empty drum and the cover transport tray 32b is mounted on the transport conveyor 32a and is transported along the transport conveyor 32a, and the cover drum 100a is removed to the empty drum 100 or the empty drum 100 Fix the cover 100a removed from the upper surface in a required state.

The driving means 32c rotates the drive shaft of the endless track of the transfer conveyor 32a forward and backward, and is connected to the control and manipulation device 80 to control operation by the control and manipulation device 80.

1, 2 and 6, the equipment installation support 60 is to place and support the radiation (ability) measuring device 40 and the starting point detection laser beam means 50 at a desired position , The horizontal mounting support 61, the lower support (62) (63), and the intermediate support (64) (65), the first and second inspection plates (20, 30) of the first and first -1 guide rails (21a) (21b) (31a) (31b) is transported along and disposed at a desired position, the horizontal mounting bracket 61, the intermediate support 64 (65) and the lower support 62 (63) ) To adjust the assembly accuracy so that the horizontal mounting bracket (61) is positioned at the required height.

The horizontal mounting table 61 is a beam having a rectangular cross section with a hollow inside, and both ends are bent at right angles downward.

The lower support (62) (63) is a beam having a rectangular cross section with a hollow inside, and has a larger cross section than the cross section of the horizontal installation stand (61), and the first and second inspection plates (20) Mounted on the first and first-1 guide rails 21a, 21b, 31a, 31b of 30, the first and 1-1 guide rails 21a, 21b, 31a, 31b ) Is provided on the lower end of the transfer support (62a) (63a) to be transported along.

The intermediate supports 64 and 65 are beams having a rectangular cross section with a hollow inside, larger than the cross section of the transverse mount 61 and a smaller cross section than the cross section of the lower supports 62 and 63 And, the lower end is assembled so as to be operable up and down with the upper end of the lower support (62, 63), the upper end is assembled to be operable up and down with the lower end of both ends of the horizontal mounting bracket (61).

1, 2, 7 and 14, the radiation (capacity) measuring device 40 is selectively disposed on the first and second inspection plates 20 and 30, respectively, and the empty drum 100 As measuring the radiation (capacity) measurements on the outer and inner circumferential surfaces and the bottom surface, the cover 100a removed from the empty drum 100 and the lower surface of the empty drum 100, the pollution level measuring instrument installation member 41 and the first And a second pollution degree measurement means (42) (43), an intermediate installation member (44), and a third pollution degree measurement means (45).

The pollution level measuring instrument installation member 41 includes a vertical bar 41a, a hook portion 41b, a first contamination level measuring instrument mounting portion 41c, and a second contamination level measuring instrument mounting portion 41d.

The hook portion 41b is formed to be bent in a hook shape, and is integrally provided on the upper surface of the vertical bar 41a to be detachably hung on the horizontal mount 61 of the equipment installation support 60.

The first contamination level measuring instrument mounting portion 41c has a bar shape and is integrally provided in parallel with the gully portion 41b at a lower end of the vertical bar 41a.

The second contamination level measuring instrument mounting portion 41d is formed to extend laterally in the middle of the vertical bar 41a in parallel with the hook portion 41b and the first contamination level measuring instrument mounting portion 41c.

Referring to FIGS. 7 and 8C, the intermediate installation member 44 has a bar shape in an 'a' shape, and a bent upper end is the outside of the second pollution degree measuring instrument mounting portion 41d of the pollution degree measuring instrument installation member 41. It is hinged to be rotatable horizontally with the end, and a third pollution degree measuring means 45 is rotatably mounted at the lower end.

1, 7 to 8C and 11, the first pollution degree measuring means 42 is in the shape of a rod, and at one end of the first pollution degree measuring instrument mounting portion 41c of the pollution degree measuring instrument installation member 41 The upper end is hinged so as to be rotatable, and is connected to the control and operation device 80, respectively, to measure the degree of contamination of the outer circumferential surface of the empty drum 100 and transmit the contamination measurement value to the control and operation device 80.

The third pollution degree measuring means 45 is rod-shaped, and is hinged to be rotatable in a section between vertical and horizontal (12 o'clock to 3 o'clock) at the lower end of the intermediate installation member 44, and is controlled and operated. Each device 80 is connected to each other and measures the degree of contamination of the bottom surface of the empty drum 100, and transmits the measured contamination value to the control and manipulation device 80.

In addition, the first and third contamination measurement means (42, 45) is composed of α-detector lines (42a) (45a) and βγ-detector lines (42b) (45b) mounted adjacent to each other in a bar shape do.

The α-detector lines 42a and 45a are formed by arranging a plurality of α-detectors 42a-1 and 45a-1, and the βγ-detector lines 42b and 45b are multiple βγ -The detectors 42b-1 and 45b-1 are formed in a line.

1, 7 to 8C and 12, the second pollution degree measuring means 42 and 43 are rod-shaped, and the first pollution degree measuring instrument mounting portion 41c of the pollution degree measuring instrument installation member 41 is The upper ends of each end are hinged so as to be rotatable, respectively, and connected to the control and manipulation device 80, respectively, to measure the contamination level of the inner surface of the ball drum 100 and the radiation dose rates for the inner and bottom surfaces, and the contamination measurement value. And a radiation dose rate value to the control and manipulation device 80, each of which is formed in a bar shape and sequentially formed adjacent to each other in parallel with each other, an α-detector line 43a, a βγ-detector line 43b, and a dose rate meter. It consists of a line 43c.

The α-detector line 43a is formed by arranging a plurality of α-detectors 43a-1 in a line.

The βγ-detector line 43b is formed by arranging a plurality of βγ-detectors 43b-1 in a line, and is installed adjacent to the α-detector line 43a.

The dose rate measuring instrument line 43c is formed by arranging a plurality of dose rate measuring instruments 43c-1 in a line.

In addition, each of the α-detectors 43a-1, βγ-detectors 43b-1 and the dose rate measuring instrument 43c-1 are each given a unique number, and each is individually polluted or radiation dose of radiation (activity). Is measured, and each measured value is individually transmitted to the control and manipulation device 80, so that if the radiation (potential) contamination is detected in the empty drum 100 and the cover 100a, the location of the contamination site can be accurately determined. In addition, it is possible to accurately measure the radiation dose rate for each contaminated site, as well as to accurately analyze contaminated nuclides.

9 and 14, the starting point detection laser beam means 50 is selectively disposed on the first and second inspection plates 20 and 30, respectively, and the outer circumferential surface and bottom surface of the ball drum 100 are provided. As a detection of the measurement reference point for the cover 100a removed from the drum 100, it is composed of an installation member 51 and a starting point detection laser beam body 52.

The installation member 51 is a rod shape having articulation parts 51b and 51c at the middle and bottom parts, and a hook part 51a that is removably attached to the horizontal installation stand 61 of the equipment installation support 60 is attached to the upper part. Have

The starting point detection laser beam body 52 is rotatably mounted on the lower end joint 51c of the installation member 51 and irradiates a laser beam to detect the starting point.

1, 2, 10A and 10B, the nuclide analysis apparatus 70 is selectively disposed on the first and second inspection plates 20 and 30, respectively, and other than the empty drum 100 The inner peripheral surface, the cover 100a removed from the empty drum 100 and the nuclide analysis of the bottom and bottom surfaces of the empty drum 100 are carried out, the vertical support 71, the horizontal support 72, and the equipment It consists of a tray (73), a nuclide analyzer (73a), a weight tray (74), a weight (74a), a screw shaft (75), and a screw shaft handle (76).

The vertical support 71 is rod-shaped, mounted on the second and second-first guide rails 21c and 31c, and conveyed along the second and second-first guide rails 21c and 31c. The transfer support 71a has a lower end.

The horizontal support 72 is a plate-shaped, axial support block 72a having a shaft actuating hole 72a-1, which is spaced apart from each other based on the middle of the upper surface and protrudes upward, and is formed through one axis in the center of the surface. , With guide grooves 72b and 72c formed concavely along the longitudinal direction on both sides of the upper surface with respect to the shaft support block 72a, the second and second ends of the upper end of the vertical support 71 -1 is installed horizontally at right angles to the guide rails 21c and 31c.

The equipment-mounted tray 73 is plate-shaped, protruding downwardly on the lower surface portion, and guide protrusions 73a which are slidably assembled with one side guide groove 72b of the horizontal support 72, and one end middle It is provided with a screw operating hole (73b) that is formed through the portion, it is mounted slidably on one side of the upper surface of the horizontal support (72).

The nuclide analyzer 73a is a common nuclide analyzer that analyzes radionuclides of radioactive materials, and when analyzing the nuclides of the empty drum 100 or the cover 100a of the empty drum 100, to an effective distance for accurate nuclide analysis Contamination of the ball drum 100 and the cover 100a while being mounted and transported on the device-mounted tray 73 for easy access to the target ball drum 100 or the cover 100a of the ball drum 100 Analyze the site nuclides.

The weight tray 74 is plate-shaped, is formed to protrude downwardly on the lower surface portion, the guide protrusion 74a slidably assembled with the other guide groove 72c of the horizontal support 72, and one end middle It is provided with a screw actuating hole (74b) formed through the portion, it is mounted slidably on the other side of the horizontal support (72).

The weight (74a) is a normal weight in the form of a plate or block, so that the nuclide analyzer (73a) is transported opposite to the distance forward and backward conveyed along the longitudinal direction of the horizontal support 72, nuclide analyzer ( Even if the weight of 73a) is biased to one side, it is detachably mounted on the weight tray 74 so that the balance of the nuclide analysis device 70 is maintained, and is transferred in a direction opposite to the transfer direction of the nuclide analyzer 73a. , By using a plurality of weights (74a) having the same or different weight, the operator can adjust the weight of the weights in a suitable combination according to the situation.

The screw shaft 75 has a worm wheel 75a on the outer circumferential surface of the middle portion, a screw portion formed opposite to each other along the outer circumferential surface on the basis of the worm wheel 75a, and the shaft supporting block 72a of the horizontal support 72 ) Between the worm wheel (75a) of the axial support block (72a) of the shaft operating hole (72a-1), the screw mounting hole (73b) of the equipment loading tray (73) and the screw operating hole of the weight tray (74) It is assembled so as to be rotatable axially with 74b, and the equipment-mounted tray 73 and weight tray 74 are opposed to each other along the guide grooves 72b and 72c on the horizontal support 72 according to the normal and reverse rotation. Transport.

The screw shaft handle 76 has a worm 76a engaged with a worm wheel 75a of the screw shaft 75, and rotates the screw shaft 75 forward and backward.

Referring to FIG. 13, the control and manipulation device 80 includes a control unit 80a, a display unit 80b, and an operation panel 80c to measure radiation (capacity) for a used drum and analyze nuclide analysis. Receiving various information from each detection, measurement, and measurement means included in, processing the received information according to a mounted program, and controlling the operation of each driving means, the radiation (performance) measuring device 40 , It is connected to the starting point detection laser beam means 50 and the nuclide analysis device 70, respectively, and controls the operation of the radiation (power) measurement device 40, the starting point detection laser beam means 50 and the nuclide analysis device 70. And outputs and stores measurement and analysis information received from the radiation (performance) measurement device 40 and the nuclide analysis device 70.

13 to 16, the radiation (performance) measurement and the nuclide analysis device 10 for the used air drum according to the present invention are easy to move and measure, thereby measuring the radiation (function) contamination of the air drum 100 It is possible to accurately, quickly and easily carry out an analysis of radionuclide contamination, radiation dose rate, location of contaminated sites, and nuclide analysis on contaminated sites by moving and installing them on site.

4, 5, 9, 10a and 14 to 15, as shown well, to use the radiation (capacity) measurement and nuclide analysis device 100 for the used empty drum according to the present invention , First, the first and second inspection plates 20 and 30 are installed side by side on the floor surface of the site, and then the equipment installation support 60, the empty drum rotation unit 22, the empty drum and cover transfer unit ( 32), the nuclide analysis device 70 and the control and manipulation device 80 are mounted at the respective positions on the first and second inspection plates 20 and 30 which are pre-installed, and the radiation (capacity) measurement device 40 is installed. And the first and third pollution level measuring means 42 of the radiation detector (radiation) measuring device 40, which are installed by hanging the starting point detection laser beam means 50 on the horizontal installation stand 61 of the previously installed equipment installation support 60. (43) (45), the starting point detection laser beam body 50 of the starting point detection laser beam means 50, the nuclide analyzer 73a of the nuclide analysis device 70, the driving means of the empty drum rotating unit 22 (22b), the drive unit 32c of the empty drum and cover transfer unit 32 is connected to the control and operation device 80 and set up, respectively, to complete the installation.

The radiation (capacity) measurement and nuclide analysis apparatus 100 for the used drum according to the present invention installed in this way is ① the pollution level measurement process for the inner and outer circumferential surfaces and the bottom surface of the empty drum 100, ② the lower surface of the empty drum 100 Pollution degree measurement process for, ③ the pollution degree measurement process for the cover (100a) can be carried out sequentially.

First, ① the contamination measurement process for the inner and outer circumferential surfaces and the bottom surface of the empty drum 100 is performed on the empty drum rotating unit 22 of the first inspection plate 20 with the empty drum 100 from which the top cover 100 is removed. The first pollution degree measuring means 42 of the radiation (capacity) measuring device 40 mounted on the equipment installation support 60 and installed on the equipment installation support 60 is the outer circumferential surface side of the empty drum 100, and the second pollution degree measuring means 43 is The inner circumferential surface side of the empty drum 100, and the third pollution degree measuring means 45 are arranged to be adjusted to be parallel to the side and bottom surfaces of the empty drum 100, respectively, on the bottom surface side of the empty drum 100, and the empty drum ( 100) to mark the starting point at any position on the outer circumferential surface, match the laser beam emitted from the starting point detection laser beam means 50 to the starting point displayed on the outer circumferential surface of the empty drum 100, and the nuclide analyzer 73a By adjusting the position, preparation for measuring the degree of contamination of the inner and outer surfaces and the bottom surface of the ball drum 100 is completed, and the ball drum assembly The inner and outer peripheral surfaces of the empty drum 100 are operated by rotating the drum rotating table 22a of all units 22 and simultaneously operating the first to third contamination measurement means 42, 43, 45 and the nuclide analyzer 73a. And it is possible to perform simultaneous analysis of radioactive (active) contamination on the bottom, radiation (active) dose rate, location of the contaminated site, and nuclide analysis of the contaminated site.

② In the process of measuring the pollution level on the lower surface of the empty drum 100, the equipment installation support 60 is transferred to an appropriate position on the second inspection plate 30, and the first contamination level measurement of the radiation (performance) measuring device 40 is measured. When the means 42 is rotated and set to a horizontal state, and the intermediate installation member 44 is rotated horizontally to measure the degree of contamination of the lower surface of the empty drum 100, the third degree of contamination measurement means 45 is determined from the interference position. After being set to be removed, ① the empty drum 100 of the inner and outer surfaces and the bottom surface of the empty drum 100, and the empty drum 100 of the second inspection plate 30 and the empty drum of the cover transfer unit 32 And placed on the cover transfer tray 32b, placed on the side so that the lower surface is positioned on the second contamination level measuring means 43, and then fixed, and the fiducial is marked at an arbitrary position on the lower surface of the empty drum 100. , The laser beam irradiated from the starting point detection laser beam means 50 By matching the starting point displayed on the lower surface of the rum 100 and adjusting the position of the nuclide analyzer 73a, preparation for measuring the degree of contamination of the lower surface of the empty drum 100 is completed, and the empty drum and cover transport unit 32 ) Driving the driving means (32c) to transport the discovered empty drum (100) while simultaneously operating the second contamination level measuring means (43) and the nuclide analyzer (73a) to the control line against the lower surface of the empty drum (100) ( A) It is possible to carry out simultaneous analysis of the degree of contamination, radiation (activity) dose rate, location of the contaminated site and nuclide of the contaminated site.

③ The contamination level measurement process for the cover 100a is rotated horizontally by rotating the intermediate installation member 44 of the radiation (capacity) measurement device 40 to measure the contamination level for the cover 100a of the empty drum 100, the interference location The third pollution level measuring means 45 is set to be removed from the first and second pollution level measuring means 42 and 43 are set vertically parallel to each other, and then the contamination measurement target cover 100a is parallel to each other. It is fixedly mounted on the empty drum and cover transport tray 32b of the empty drum and cover transport unit 32 so as to be disposed in parallel between the first and second pollution level measuring means 42 and 43 which are set so as to be installed. After the display, the starting point is displayed at an arbitrary position on the side of the second contamination level measuring means 43 of the cover 100a, and the laser beam irradiated from the starting point detection laser beam means 50 is a surface part of the cover 100a. By matching to the starting point indicated in, and adjusting the position of the nuclide analyzer 73a, Preparation for measuring contamination on both sides of the dog 100a is completed, and driving the driving means 32c of the empty drum and the lid transport unit 32 to transport the discovered lid 100a while simultaneously measuring the first and second pollution levels The means 42, 43 and the nuclide analyzer 73a are operated to simultaneously analyze the radioactive (active) contamination, the radiation (active) dose rate, the location of the contaminated region and the nuclide analysis of the contaminated region on both sides of the cover 100a. You can do it.

1, 2, 10A, 14 and 15, the radiation (capacity) measurement and nuclide analysis apparatus 10 for a used empty drum according to the present invention having the above configuration First and second inspection plates (20) (30), equipment installation support (60), radiation (performance) measurement device (40), fiducial detection laser beam means (50), nuclide analysis device (70) to facilitate mobile installation ) And the control and operation device 80 are individually formed and assembled detachably so that they can be quickly assembled and installed, so that they are installed directly on the radiation (potential) contamination measurement site for the empty drum 100 to perform measurement work. In particular, the ball drum rotating unit 22 for rotating the ball drum 100, the ball drum and the lid transport unit 32 for transferring the ball drum 100 and the lid 100a in the direct direction, the ball drum Radiation (capacity) and radiation dose rate for the (100) and the cover (100a), the first to third to measure and read the location information of the contamination site Nuclide analyzer (73a) for analyzing nuclides of radioactive materials contaminating the empty drum and cover transport unit (32), the empty drum (100) and the cover (100a) with contamination measurement means (42, 43, 45) It is equipped with, without the dismantling and flattening of the empty drum 100 used in a nuclear power plant, etc., it is used to accurately measure the radiation (capacity) pollution, detect the contamination site, measure the radiation dose rate, and analyze the nuclide of the contaminated radioactive material. It has the advantage of being able to perform quickly.

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. .

10: Radiation (power) measurement and nuclide analysis device for used empty drum
20: 1st inspection plate 30: 2nd inspection plate
40: radiation (power) measuring device 50: origin detection laser beam means
60: equipment installation support 70: nuclide analysis device
80: control and operation device 100: empty drum
100a: cover (of the empty drum)

Claims (12)

A first inspection plate 20 for performing radiation (capacity) measurement and nuclide analysis on the outer and inner circumferential and bottom surfaces of the empty drum 100 from which the cover 100a is removed;
A second inspection plate 30 for performing radiation (capacity) measurement and nuclide analysis on the lower surface of the empty drum 100 and the cover 100a removed from the empty drum 100;
The first and second inspection plates 20 and 30 are respectively selectively disposed on the outer and inner circumferential surfaces and bottom surfaces of the empty drum 100, and the cover 100a and the empty drum 100 removed from the empty drum 100 A radiation (capacity) measuring device 40 for measuring radiation (capacity) measurement on the lower surface of the;
Each of the first and second inspection plates 20 and 30 is selectively disposed on the outer circumferential surface and bottom surface of the empty drum 100 to detect a measurement reference point for the cover 100a removed from the empty drum 100 Starting point detection laser beam means 50;
An equipment installation support 60 for arranging and supporting the radiation (performance) measuring device 40 and the starting point detection laser beam means 50 at a desired position;
Each of the first and second inspection plates 20 and 30 is selectively disposed on the outer and inner circumferential surfaces and bottom surfaces of the empty drum 100, and the cover 100a and the empty drum 100 removed from the empty drum 100 A nuclide analysis device 70 for performing nuclide analysis on the lower surface of the;
It is connected to the radiation (performance) measuring device 40, the starting point detection laser beam means 50 and the nuclide analysis device 70, respectively, and the radiation (performance) measuring device 40, the starting point detection laser beam means 50 and Consists of a control and manipulation device (80) that controls the operation of the nuclide analysis device (70) and outputs and stores measurement and analysis information received from the radiation (activity) measurement device (40) and the nuclide analysis device (70). Radiation (power) measurement and nuclide analysis device for the used empty drum, characterized in that.

According to claim 1,
The first inspection plate 20,
As a flat plate, the first guide rails 21a and 21b spaced apart from each other on the upper surface and the second guide rails 21c installed in parallel between the first guide rails 21a and 21b are provided. A base 21 which is horizontally disposed on the bottom surface;
Mounted between the first guide rail 21a and the second guide rail 21c of the base 21, the used empty drum 100 with the cover 100a removed is mounted on the top surface and rotated at a set speed. Radiation (capacity) measurement and nuclide analysis device for the used ball drum, characterized in that it comprises a ball drum rotating unit (22).
According to claim 1,
The second inspection plate 30,
As a flat plate, the 1-1 guide rails 31a and 31b that are parallel to each other and are installed parallel to the upper surface and the 2-1 guide rails that are installed in parallel between the first guide rails 31a and 31b (31c), the 1-1 guide rail (31a) (31b) is located on one axis with the first guide rail (21a) (21b) of the first inspection plate 20, the 2-1 A base 31 horizontally disposed on the bottom surface adjacent to the first inspection plate 20 so that the guide rail 31c is located on one axis with the second guide rail 21c of the first inspection plate 20;
Between the 1-1 guide rail (31a) and the 2-1 guide rail (31c) of the base 31, mounted in parallel with the 1-1 guide rail (31a), the used ball drum (100) And a blank drum and a cover transfer unit 32 for detachably fixing the cover 100a detached from the blank drum 100 and transferring it to a set speed. (Function) Measurement and nuclide analysis device.
According to claim 2,
The empty drum rotating unit 22,
As a disc, between the first and second guide rails 21a and 21c of the first inspection plate 20 having a flat upper surface and a lower surface integrally having a gear portion 22a-1 protruding downward. A drum rotation table 22a rotatably mounted;
It has a gear (22b-1) meshed with the gear portion (22a-1) of the drum rotation table (22a), and is composed of drive means (22b) for forward and reverse rotation of the drum rotation table (22a);
The driving means (22b),
A gear 22b-1 engaged with the gear portion 22a-1 of the drum rotation table 22a is provided on the rotating shaft, and connected to the control and manipulation device 80 to operate by the control and manipulation device 80 Radiation (capacity) measurement and nuclide analysis device for the used empty drum, characterized in that this is a controlled drive motor.
According to claim 4,
The driving means (22b),
A driving motor (22b-2) having a gear (22b-1) on a rotating shaft, and connected to a control and manipulation device (80) to control operation by the control and manipulation device (80),
The gear (22c-1) meshed with the gear portion (22a-1) of the drum rotation table (22a) on one side and the gear meshed with the gear (22b-1) of the drive motor (22b-2) on the other side A gear that includes (22c-2) and transmits the driving force of the driving motor (22b-2) to the gear portion (22a-1) of the drum rotating table (22a) to rotate the drum rotating table (22a) forward and backward. Radiation (capacity) measurement and nuclide analysis device for the used empty drum, characterized in that it consists of a box (22c).
According to claim 3,
The empty drum and cover transfer unit 32,
A pair of conveyors having a caterpillar belt or chain, spaced apart from each other on the upper surface of the base 31 between the 1-1 and 2-1 guide rails 31a and 31c of the second inspection plate 30 -1 a transport conveyor (32a) installed in parallel with the guide rail (31a);
It is mounted on the conveying conveyor 32a and is transported along the conveying conveyor 32a, and the cover 100a removed from the empty drum 100 or the empty drum 100 with the cover 100a removed is required. A ball drum and a cover transfer tray 32b fixed to the upper surface;
Characterized in that it comprises a driving means (32c) that rotates the drive shaft of the caterpillar of the transfer conveyor (32a) forward and backward, and is connected to the control and manipulation device (80) to control operation by the control and manipulation device (80). Radiation (capacity) measurement and nuclide analysis device for the used empty drum.
According to claim 1,
The equipment installation support 60,
A beam having a rectangular cross section with a hollow inside, and horizontal ends 61 formed by bending both ends at right angles downward;
A beam having a rectangular cross section with a hollow inside, having cross sections larger than the cross section of the transverse mounting table 61, and first and first- of the first and second inspection plates 20 and 30 1 Transfer rails (62a) mounted on the guide rails (21a) (21b) (31a) (31b) and transferred along the first and 1-1 guide rails (21a) (21b) (31a) (31b) A lower support (62) (63) having a lower end (63a);
As a beam having a rectangular cross section with a hollow inside, the cross section is larger than the cross section of the horizontal mount 61, and has a cross section smaller than the cross section of the lower supports 62 and 63, and the lower end is the lower support 62 ) 63, the upper end is operably assembled up and down, the upper end is composed of an intermediate support (64) (65) that is operatively assembled with the lower end of both ends of the horizontal installation stand (61);
The first and second inspection rails of the first and second inspection plates 20 and 30 are disposed along the guide rails 21a, 21b, 31a, and 31b to be disposed at a desired position, and the horizontal In the used drum, characterized in that the horizontal mounting bracket (61) is positioned at the required height by adjusting the assembly degree of the mounting bracket (61), the intermediate support (64) (65), and the lower support (62) (63). Korean radiation (activity) measurement and nuclide analysis device.
According to claim 1,
Radiation (power) measuring device 40,
The vertical bar (41a), the hook portion (41b) is formed to be bent in the shape of a hook, is provided integrally on the upper surface of the vertical bar (41a) to be detachably attached to the horizontal installation stand (61) of the equipment installation support (60) And, as a bar shape, the first end of the vertical bar (41a) is provided with a first contamination level measuring instrument mounting portion (41c) integrally provided in parallel with the gully portion (41b), the hook portion (41b) and the first pollution degree measuring device mounting portion A pollution degree measuring instrument installation member 41 having a second pollution degree measuring instrument mounting portion 41d extending laterally in the middle of the vertical bar 41a in parallel with (41c);
As a rod shape, the upper end portions are respectively hinged to each end of the first pollution degree measuring instrument mounting portion 41c of the pollution degree measuring instrument installation member 41, and are connected to the control and manipulation device 80, respectively, to form a ball drum 100. First and second pollution degree measurement means (42) (43) for measuring the degree of contamination of the inner and outer sides and the lower surface of the, and transmitting the measured values to the control and manipulation device (80);
As a bar shape in the shape of 'a', the bent upper end is interposed horizontally with the outer end of the second pollution degree measuring instrument mounting portion 41d of the pollution degree measuring instrument installation member 41, and the intermediate installation member 44 is hingedly coupled. ;
As a rod shape, one end of the intermediate installation member 44 is hinged to be horizontally and vertically rotatable, and connected to a control and manipulation device 80 to measure the degree of contamination of the bottom surface of the ball drum 100, , Radiation (capacity) measurement and nuclide analysis device for the used empty drum, characterized in that it comprises a third pollution measurement means (45) for transmitting the contamination measurement value to the control and operation device (80).
According to claim 1,
The starting point detection laser beam means 50,
As a rod shape having a joint portion (51b) (51c) in the middle and the lower end, the installation member 51 having a hook portion (51a) that is detachably hung on the horizontal mount (61) of the equipment installation support (60) and ;
Radiation for the used drum, characterized in that it is rotatably mounted on the lower joint (51c) of the installation member (51), and consists of a starting point detection laser beam body (52) that detects a starting point by irradiating a laser beam. (Function) Measurement and nuclide analysis device.
According to claim 1,
The nuclide analysis device 70,
As a rod shape, the lower end is mounted on the second and 2-1 guide rails 21c and 31c, and the transfer support 71a transferred along the second and 2-1 guide rails 21c and 31c is transported. And the vertical support 71 has;
As a plate shape, the shaft support block 72a and the shaft support block 72a having a shaft actuating hole 72a-1 which is spaced at a predetermined distance from the middle of the upper surface and protrudes upward, and is formed through one axis in the center of the surface. A guide groove (72b) (72c) is formed concave along the longitudinal direction on both sides of the upper surface in line with reference to, the second and second-1 guide rails (21c) at the upper end of the vertical support (71) A horizontal support 72 installed horizontally perpendicular to the 31c;
As a plate shape, it is projected downwardly on the lower surface portion, and a guide projection (73a) slidably assembled with one side guide groove (72b) of the horizontal support (72), and a screw operating hole formed through the middle of one end surface And equipped with (73b), the equipment mounted tray 73 is slidably mounted on one side of the upper surface of the horizontal support 72;
A nuclide analyzer (73a) that is mounted on the device-mounted tray (73) and analyzes the nuclides of the contaminated site with respect to the ball column (100) and the cover (100a);
As a plate shape, it is projected downwardly on the lower surface portion, and the guide projection 74a is slidably assembled with the other side guide groove 72c of the horizontal support 72, and a screw operating hole formed through the middle portion of one end surface. A weight weight tray 74 having a 74b and slidably mounted on the other upper surface of the horizontal support 72;
A weight weight 74a which is transferred in a direction opposite to the transfer direction of the nuclide analyzer 73a and is detachably mounted on the weight tray 74 to maintain a weight balance;
A worm wheel (75a) having a worm wheel (75a) on the outer circumferential surface of the middle portion, has a screw portion formed in opposite directions along the outer circumferential surfaces on both sides of the worm wheel (75a), between the shaft support block (72a) of the horizontal support (72) In order to be arranged, the shaft actuating hole 72a-1 of the shaft supporting block 72a, the screw actuating hole 73b of the equipment loading tray 73, and the screw acting hole 74b of the weight tray 74 rotate uniaxially A screw shaft 75 that is operably assembled and transfers the equipment-mounted tray 73 and the weight-weight tray 74 to each other along the guide grooves 72b and 72c on the horizontal support 72 according to forward and reverse rotation. )and;
For the used drum, characterized in that it has a worm (76a) that meshes with the worm wheel (75a) of the screw shaft (75), and consists of a screw shaft handle (76) for reversing and rotating the screw shaft (75) Radiation (power) measurement and nuclide analysis equipment.
The method of claim 8,
The first pollution degree measuring means 42 and the third pollution degree measuring means 45,
Α-detector lines (42a) (45a) formed by arranging a plurality of α-detectors (42a-1) (45a-1) in line,
A plurality of βγ-detectors (42b-1) (45b-1) are formed by arranging in line, and the β-detector line (42a) (45a) is installed adjacent to the βγ-detector line (42b) (45b) Radiation (capacity) measurement and nuclide analysis device for the used empty drum, characterized in that configured.
The method of claim 8,
The second pollution degree measuring means 43,
Α-detector line (43a) formed by arranging a plurality of α-detectors (43a-1) in line,
A plurality of βγ-detector (43b-1) is formed by being arranged in a line, the β- detector line (43b) is installed adjacent to the α- detector line (43a),
Radiation for the used empty drum, characterized in that a plurality of dosimeters (43c-1) are formed by arranging in line, and composed of a dose rate meter line (43c) installed adjacent to the βγ-detector line (43b) ( A) Measurement and nuclide analysis device.

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