A mobile adaptive multi-size barrel waste pollution measurement device

Abstract

The utility model relates to a mobile adaptive multi-size barreled waste contamination measurement device, which belongs to the technical field of radioactive dose measurement. In the rotating centering unit of the device, a rotating seat plate and a roller table arranged at the upper end of a support frame with a horizontal support arm form a rotating roller driven by a rotating mechanism; the horizontal support arm supports the centering mechanism; its contamination measurement unit at least includes a barrel top measurement unit and a barrel side measurement unit; the measurement unit is respectively equipped with corresponding measurement probes through a vertical module and a horizontal module. The utility model can realize the intelligent and efficient contamination measurement of barreled nuclear waste of multiple sizes, is easy to operate, has high measurement accuracy, and solves the problems of radioactive radiation protection existing in manual operations.

Description

Technical Field

[0001] The utility model relates to a measuring device, in particular to a mobile self-adaptive multi-size barreled waste pollution measuring device, belonging to the technical field of radioactive dose measurement. Background Art

[0002] With the increasing application of nuclear technology in the fields of energy, military, industry and medicine, nuclear facilities in nuclear power plants, military facilities, nuclear fuel element plants and hospitals, whether in operation or decommissioning, will generate a large amount of radioactive solid waste such as technical waste, waste resin and concentrated liquid. According to the national standard GB14500-2002 "Radioactive Waste Management Regulations", radioactive waste must be tested for nuclides and their activity in waste barrels before disposal, so as to provide a scientific basis for its temporary storage, transportation and final disposal.

[0003] When waste barrels are transported, a series of measurement data such as the surface dose rate and the dose rate at 1m of the waste barrels need to be provided. However, according to the applicant's understanding, the existing technology requires staff to scan, measure and record waste barrels of different sizes one by one, which not only has the problems of low efficiency, large workload and inaccurate data recording, but also poses the risk of radioactive radiation damage. Utility Model Content

[0004] The purpose of the utility model is to provide a mobile adaptive multi-size barrel waste pollution measuring device which can automatically complete the measurement of multiple parameters required at one time, thereby not only improving efficiency and ensuring the accuracy of measurement data, but also avoiding radioactive radiation damage.

[0005] In order to achieve the above-mentioned purpose, the basic technical scheme of the utility model of the adaptive multi-size barrel mobile waste pollution measurement device is: comprising a rotation centering unit and a pollution measurement unit arranged on a mobile support unit;

[0006] In the rotary centering unit, the upper end of the support frame with horizontal support arms arranged on the bottom plate is fixedly connected to the rotary seat plate, and the rotary seat plate and the roller table form a rotary roller driven by the rotary mechanism; the horizontal support arms support the centering screw driven by the centering motor, and form a horizontal moving pair with the opposite centering guide forks through two centering sliders; the two ends of the centering screw have threads with opposite rotation directions, and respectively form a spiral pair with the screw holes on one side of the corresponding centering slider;

[0007] The contamination measurement unit at least includes a barrel top measurement unit and a barrel side measurement unit installed on the main column; the barrel top measurement unit contains a first vertical mold fixed to the main column, which is assembled with a first horizontal mold group that forms a lockable lifting and moving pair therewith, and the first horizontal mold group is connected to the first connecting member through a first slider that forms a lockable horizontal moving pair therewith, and the lower surface of the first connecting member is equipped with a first α / β surface contamination measurement probe, a tritium surface contamination measurement probe, and a first γ dose rate measurement probe; the barrel side measurement unit contains a second vertical mold fixed to the main column, which is assembled with a second slider that forms a lockable lifting and moving pair therewith, and the second slider is connected to the second connecting member, and the upper end of the upper surface of the second connecting member is respectively equipped with a first electric cylinder and a second electric cylinder that can be horizontally extended and retracted through a first connecting block and a second connecting block, and the front extension ends of the first electric cylinder and the second electric cylinder are respectively equipped with a second α / β surface contamination measurement probe and a second γ dose rate measurement probe.

[0008] The utility model is further improved as follows: the mobile support unit is mainly composed of a base plate with universal wheels at the bottom and handrails at the rear, a rotating centering unit is placed at the front of the upper surface of the base plate, and main columns and side columns are fixed on the middle and rear sides respectively.

[0009] A further improvement of the utility model is that two side lifting motors and one middle lifting motor are respectively installed on the two sides and the middle part of the support frame; the lifting ends of the side lifting motors and the middle lifting motor are respectively installed with side docking brackets with docking strips and a middle docking bracket with four docking columns to form a lifting and docking mechanism; the docking strips and the docking columns can pass through the through holes of corresponding shapes on the roller tray to receive the waste barrel.

[0010] A further improvement of the utility model is that: an inner gear ring is installed in the inner hole of the rotating seat plate to form a rotating pair therewith, and the inner gear ring is fixedly connected to the roller table through a roller tray; the inner gear ring is meshed with a pinion on the output shaft of the rotating motor installed in the supporting frame to form a rotating roller driven by the rotating mechanism; and a group of rollers driven by the roller motor are installed on the roller table.

[0011] The utility model is further improved in that: the pollution measurement unit also includes a barrel side 1m measurement unit installed on the side column; the barrel side 1m measurement unit contains a third vertical module fixed to the side column, which is equipped with a second horizontal module that forms a lockable lifting and lowering movable pair therewith, and the second horizontal module is equipped with a right-angle connector that forms a lockable horizontal movable pair therewith through a third slider, and a third dose rate measurement probe is installed on the horizontal support of the right-angle connector.

[0012] The utility model is further improved in that: a third electric cylinder which is horizontally telescopic is installed at the lower end of the second connecting member through a third connecting block, and a wiping head which matches the shape of the barrel wall of the waste barrel is installed at the front end of the third electric cylinder.

[0013] The utility model is further improved in that: the bottom plate also supports a touch screen, and a mobile power source and an electric control cabinet are arranged.

[0014] Compared with the prior art, the utility model has the following beneficial effects: it can realize the measurement of α / β surface contamination, tritium surface contamination, surface γ dose rate, γ dose rate at 1 m, and automatic wiping sampling of surface α / β measurement results with abnormal results due to γ-ray interference, and it also has data processing, storage and display functions, realizing intelligent and efficient contamination measurement of barreled nuclear waste of multiple sizes. The device of the utility model is easy to operate and has high measurement accuracy, solving the problems of low efficiency, large workload, inaccurate data recording and radioactive radiation protection in manual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the rotation centering unit of the embodiment.

[0018] Figure 3 for Figure 2 Schematic diagram of the three-dimensional decomposition structure.

[0019] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the barrel top measurement unit of the embodiment.

[0020] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the barrel-side measurement unit of the embodiment.

[0021] Figure 6 for Figure 1 Schematic diagram of the three-dimensional structure of the barrel side 1m measurement unit of the embodiment.

[0022] In the attached figure: 1. waste barrel, 2. centering mechanism, 3. rotary roller, 4. rotating mechanism, 5. lifting and docking mechanism, 6. bottom plate, 7. universal wheel, 8. barrel top measuring unit, 9. main column, 10. barrel side measuring unit, 11. side column, 12. barrel side 1m measuring unit, 13. touch screen, 14. handrail, 15. mobile power supply, 16. electric control cabinet, 17. roller motor, 18. centering guide fork, 19. rotating motor, 20. centering slider, 21. centering screw rod, 22. supporting frame, 23. roller table, 24. rotating seat plate, 25. side docking bracket, 26. centering motor, 27. side lifting motor, 28. disc connector, 29. An α / β surface contamination measuring probe, 30, a tritium surface contamination measuring probe, 31, a first γ dose rate measuring probe, 32, a first slider, 33, a first horizontal module, 34, a first vertical module, 35, a second α / β surface contamination measuring probe, 36, a second γ dose rate measuring probe, 37, a wiping head, 38, a first connecting block, 39, a first electric cylinder, 40, a second electric cylinder, 41 a second connecting block, 42, a second slider, 43, a polygonal connecting piece, 44, a third connecting block, 45, a third electric cylinder, 46, a second vertical module, 47, a third slider, 48, a right-angle connecting piece, 49, a second horizontal module, 50, a third γ dose rate measuring probe, 51, a third vertical module. DETAILED DESCRIPTION Example

[0023] The basic structure of the adaptive multi-size barrel waste pollution measurement device of this embodiment is as follows: Figure 1 As shown, it includes a rotation centering unit, a pollution measurement unit, and a data processing and control unit arranged on a mobile support unit. The mobile support unit is mainly composed of a base plate 6 with universal wheels 7 at the bottom and a handrail 14 at the rear. The front of the upper surface of the base plate 6 is equipped with a rotation centering unit, and the main column 9 and the side column 11 of the pollution measurement unit are fixed on the middle and rear sides respectively. The base plate 6 also supports a touch screen 13, and is equipped with a mobile power supply 15 and an electric control cabinet 16.

[0024] The specific structure of the rotation centering unit is as follows: Figure 2As shown, the upper end of the support frame 22 with horizontal support arms 22' placed on the bottom plate 6 is fixedly connected to a rotating seat plate 24, and an inner gear ring 24' is installed in the inner hole of the rotating seat plate to form a rotating pair therewith. The inner gear ring is fixedly connected to the roller table 23 through a roller tray 23', and the inner gear ring 24' is meshed with a pinion on the output shaft of the rotating motor 19 installed in the support frame 22. A group of rollers driven by the roller motor 17 through a transmission link are installed on the roller table 23; thus, a rotary roller 3 driven by the rotating mechanism 4 is formed, and under the drive of the rotating motor 19, the roller table 23 can be indexed as needed. The horizontal support arm 22' supports the centering screw 21 driven by the centering motor 26 through the transmission link, and forms a horizontal moving pair through two centering sliders 20 and a pair of opposite centering guide forks 18. The two ends of the centering screw 21 have threads with opposite rotation directions, which respectively form a spiral pair with the screw holes on one side of the corresponding centering sliders 20; thus, a rotating mechanism 4 is formed, and under the drive of the centering motor 26, the two Y-shaped centering guide forks 18 can be relatively centered and clutched.

[0025] In addition, side lifting motors 27 and a middle lifting motor 27' are respectively installed on both sides and the middle of the support frame 22. The lifting ends of the side lifting motors 27 and the middle lifting motors 27' are respectively installed with a side docking support 25 with a docking bar and a middle docking support 25' with four docking columns, forming a lifting and docking mechanism 5. Driven by the side lifting motors 27 and the middle lifting motors 27', the docking bars and the docking columns can pass through the corresponding shaped perforations on the roller tray 23', and after receiving the waste barrel 1, it can fall smoothly onto the rotary roller 3.

[0026] The pollution measurement unit includes a barrel top measurement unit 8 installed on the main column 9 , a barrel side measurement unit 10 , and a barrel side 1m measurement unit 12 installed on the side column 11 .

[0027] The specific structure of the barrel top measurement unit 8 is as follows Figure 4 As shown, the first vertical module 34 fixed in front of the main column 9 is equipped with a first horizontal module 33 that forms a lockable lifting and lowering movable pair therewith. The first horizontal module 33 is connected to the disc connector 28 through a first slider 32 that forms a lockable horizontal movable pair therewith. The lower surface of the disc connector 28 is equipped with a first α / β surface contamination measuring probe 29, a tritium surface contamination measuring probe 30, and a first γ dose rate measuring probe 31.

[0028] The specific structure of the barrel side measurement unit 10 is as follows Figure 5As shown, the second vertical module 46 fixed to the side of the main column 9 is equipped with a second slider 42 that forms a lockable lifting and moving pair therewith, and the second slider 42 is connected to a polygonal connecting piece 43. The upper end of the upper surface of the polygonal connecting piece 43 is respectively installed with a first electric cylinder 39 and a second electric cylinder 40 that can be telescopically moved horizontally through a first connecting block 38 and a second connecting block 41, and the forward ends of the first electric cylinder 39 and the second electric cylinder 40 are respectively installed with a second α / β surface contamination measurement probe 35 and a second γ dose rate measurement probe 36; the lower end of the polygonal connecting piece 43 is installed with a third electric cylinder 45 that can be telescopically moved horizontally through a third connecting block 44, and the forward end of the third electric cylinder 45 is installed with a wiping head 37 that matches the shape of the waste barrel 1.

[0029] The specific structure of the barrel side 1m measurement unit 12 is as follows Figure 6 As shown, the third vertical module 51 fixed to the side column 11 is equipped with a second horizontal module 49 that forms a lockable lifting and lowering movable pair therewith, and the second horizontal module 49 is equipped with a right-angle connector 48 that forms a lockable horizontal movable pair therewith through a third slider 47, and a third gamma dose rate measuring probe 50 is installed on the horizontal support of the right-angle connector 48.

[0030] During operation, first, the waste barrel is connected before measurement, which is divided into two types: waste collection outside the factory and measurement after preparation: when collecting waste outside the factory, the connection lifting motor 27 is manually controlled through the electric control cabinet 16 to raise the connection support 25, connect the waste barrel 1, and after receiving the waste barrel 1, drive the connection lifting motor 27 to make it fall smoothly on the rotary roller 3; after preparation, the measurement is automatically connected through the roller, and the preparation system has existing roller equipment. The roller table 23 of the measuring device is manually connected to the roller of the preparation system, and the roller motor 17 drives the roller to roll, and the waste barrel 1 is transferred from the roller of the preparation system to the roller of the measuring component.

[0031] Then, the waste barrel is centered. The centering mechanism 2 centers the waste barrel according to the manually input waste barrel model. The centering motor 26 drives the centering slider 20 to move horizontally on the centering screw rod 21, and the centering guide fork 18 pushes the waste barrel to the measuring point.

[0032] Secondly, waste barrel measurements are carried out, including α / β surface contamination measurement, γ dose rate measurement and tritium surface contamination measurement. First, α / β measurement is performed on the waste barrel. The first α / β surface contamination measurement probe 29 is horizontally moved by the first horizontal module 33, and the first vertical module 34 is vertically moved to the measurement position. The second α / β surface contamination measurement probe 35 is horizontally moved by the first electric cylinder 39, and the second vertical module 46 is vertically moved to the measurement position. The waste barrel 1 is subjected to α / β measurement and reset after completion. Then, γ measurement is performed. The first γ dose rate measurement probe 31 is horizontally moved by the first horizontal module 33, and the first vertical module 34 is vertically moved to the measurement position. The second γ dose rate measurement probe 36 is horizontally moved by the second electric cylinder 40, and the second vertical module 46 is vertically moved to the measurement position. The third γ dose rate measurement probe 50 is horizontally moved by the second horizontal module 49, and the third vertical module 51 is vertically moved to the measurement position. The waste barrel 1 is subjected to γ ​​measurement and reset after completion. Finally, tritium measurement is performed on the waste barrel 1. The tritium surface contamination measurement probe 32 is horizontally moved by the first horizontal module 33, and the first vertical module 34 is vertically moved to the measurement position. The waste barrel 1 is subjected to tritium measurement and reset after completion.

[0033] Next, the measurement results of the waste bin are checked, and the measurement results are manually viewed through the touch screen 13. If the α / β measurement is interfered by γ rays and the result is abnormal, the side of the waste bin is automatically wiped, the wiping head 37 is moved horizontally by the third electric cylinder 45, and the second vertical module 49 is moved vertically to the wiping position, and the waste bin 1 is automatically wiped and reset after wiping.

[0034] Finally, the waste barrel is connected after measurement, which is divided into two types: waste collection outside the factory and measurement after preparation: when collecting waste outside the factory, the connection lifting motor 27 is manually controlled through the electric control cabinet 16 to raise the connection support 25, and the waste barrel 1 is lifted to facilitate the manual forklift to take over the waste barrel 1 and reset it after taking over; measurement after preparation is automatically connected by a clamping forklift.

[0035] The data processing module in the electric control cabinet 16 in the data processing and control unit converts the signals collected by each probe from analog signals to digital signals, and analyzes and processes them into numerical and graphical results through the industrial computer measurement software in the electric control cabinet 16 and displays them on the touch screen 13, thereby realizing the human-computer interaction function. The mobile power supply 15 is connected to the power management module in the electric control cabinet 16 to supply power to each module of the measurement component and monitor the power supply status. The electric control cabinet also has a status indicator and an emergency stop to ensure the safe operation of the measurement component.

[0036] In summary, this embodiment has the following advantages compared with the prior art:

[0037] 1. The rotary centering unit can automatically dock with a forklift through a lifting docking mechanism, and can also automatically dock with a roller conveyor through a circular roller table, which is convenient for automatic docking of waste bins.

[0038] 2. The rotation centering unit can realize the automatic centering positioning of the waste bin through the centering mechanism, ensuring that there will be no eccentricity problem when the waste bin is rotated subsequently.

[0039] 3. The rotating centering unit drives the circular roller to rotate through a rotating mechanism composed of a motor and gears, so that the dose rate meter on the barrel side surface and 1m away from the barrel side can automatically rotate and scan the waste barrel.

[0040] 4. The contamination measurement unit is equipped with 7 probes in total, including 2 surface α / β measurement probes for surface contact measurement, which can measure the barrel top cover and barrel side positions; 1 surface tritium contamination measurement probe for surface contact measurement, which can measure the barrel top cover position; 3 γ dose rate measurement probes, which can perform rotational scanning measurement of the γ dose rate on the waste barrel top cover, barrel side surface and 1 m from the barrel side, and can measure the barrel top cover, barrel side and 1 m from the barrel side; 1 automatic sampling device, which can wipe the barrel side position with a wiper component for surface α / β contamination measurement due to γ-ray interference, and put it into a portable contamination meter for α / β detection. At the same time, each probe can be displaced in two degrees of freedom to adapt to waste barrels of different sizes, and realize α / β surface contamination measurement, tritium surface contamination measurement, surface γ dose rate measurement, γ dose rate measurement at 1 m, and automatic wiping sampling of surface α / β measurement results with abnormal results due to γ-ray interference.

[0041] 5. The data processing module in the electric control cabinet converts the signals collected by each probe from analog signals to digital signals and integrates them into the industrial computer. Customized measurement software is used to analyze, store, display and upload the radioactive dose data of α, β, γ and tritium.

[0042] 6. The mobile measuring part is equipped with labor-saving handrails on the side and universal wheels at the bottom for easy manual transportation. At the same time, the bottom can be loaded by a forklift for easy transportation by forklift.

[0043] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation is included in the scope defined by the requirements of the present invention.

Claims

1. A mobile adaptive multi-size barrel waste pollution measurement device, characterized by: It includes a rotation centering unit and a contamination measuring unit which are arranged on a mobile support unit; In the rotary centering unit, the upper end of the support frame with horizontal support arms arranged on the bottom plate is fixedly connected to the rotary seat plate, and the rotary seat plate and the roller table form a rotary roller driven by the rotary mechanism; the horizontal support arms support the centering screw driven by the centering motor, and form a horizontal moving pair with the opposite centering guide forks through two centering sliders; the two ends of the centering screw have threads with opposite rotation directions, and respectively form a spiral pair with the screw holes on one side of the corresponding centering slider; The contamination measurement unit at least includes a barrel top measurement unit and a barrel side measurement unit installed on the main column; the barrel top measurement unit contains a first vertical mold fixed to the main column, which is assembled with a first horizontal mold group that forms a lockable lifting and moving pair therewith, and the first horizontal mold group is connected to the first connecting member through a first slider that forms a lockable horizontal moving pair therewith, and the lower surface of the first connecting member is equipped with a first α / β surface contamination measurement probe, a tritium surface contamination measurement probe, and a first γ dose rate measurement probe; the barrel side measurement unit contains a second vertical mold fixed to the main column, which is assembled with a second slider that forms a lockable lifting and moving pair therewith, and the second slider is connected to the second connecting member, and the upper end of the upper surface of the second connecting member is respectively equipped with a first electric cylinder and a second electric cylinder that can be horizontally extended and retracted through a first connecting block and a second connecting block, and the front extension ends of the first electric cylinder and the second electric cylinder are respectively equipped with a second α / β surface contamination measurement probe and a second γ dose rate measurement probe.

2. The mobile adaptive multi-size barrel waste pollution measurement device according to claim 1 is characterized by: The mobile support unit is mainly composed of a base plate with universal wheels at the bottom and handrails at the rear. A rotating centering unit is placed at the front of the upper surface of the base plate, and a main column and a side column are fixed on the middle and rear sides respectively.

3. The mobile adaptive multi-size barreled waste pollution measuring device according to claim 1 or 2 is characterized in that: Two side lifting motors and one middle lifting motor are respectively installed on the two sides and the middle of the support frame; the lifting ends of the side lifting motors and the middle lifting motor are respectively installed with side docking brackets with docking strips and a middle docking bracket with four docking columns to form a lifting and docking mechanism; the docking strips and docking columns can pass through the through holes of corresponding shapes on the roller tray to receive the waste barrel.

4. The mobile adaptive multi-size barrel waste pollution measurement device according to claim 3 is characterized by: An inner gear ring is installed in the inner hole of the rotating seat plate to form a rotating pair therewith, and the inner gear ring is fixedly connected to the roller table through a roller tray; the inner gear ring is meshed with a small gear on the output shaft of the rotating motor installed in the supporting frame to form a rotating roller driven by the rotating mechanism; a group of rollers driven by the roller motor are installed on the roller table.

5. The mobile adaptive multi-size barrel waste pollution measurement device according to claim 4 is characterized by: The pollution measurement unit also includes a barrel side 1m measurement unit installed on the side column; the barrel side 1m measurement unit contains a third vertical module fixed to the side column, which is equipped with a second horizontal module that forms a lockable lifting and lowering movable pair therewith; the second horizontal module is equipped with a right-angle connector that forms a lockable horizontal movable pair therewith through a third slider; and a third dose rate measurement probe is installed on the horizontal support of the right-angle connector.

6. The mobile adaptive multi-size barrel waste pollution measurement device according to claim 5 is characterized by: A third electric cylinder that can be telescopically moved horizontally is mounted on the lower end of the second connecting member through a third connecting block, and a wiping head that matches the shape of the barrel wall of the waste barrel is mounted on the front end of the third electric cylinder.

7. The mobile adaptive multi-size barrel waste pollution measurement device according to claim 6 is characterized by: The bottom plate also supports a touch screen and houses a mobile power source and an electric control cabinet.

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