CN217007699U - Nuclide detection device for medium and low radioactive wastes - Google Patents
Nuclide detection device for medium and low radioactive wastes Download PDFInfo
- Publication number
- CN217007699U CN217007699U CN202220277539.1U CN202220277539U CN217007699U CN 217007699 U CN217007699 U CN 217007699U CN 202220277539 U CN202220277539 U CN 202220277539U CN 217007699 U CN217007699 U CN 217007699U
- Authority
- CN
- China
- Prior art keywords
- detector
- radioactive source
- waste bin
- translation
- waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Radiation (AREA)
Abstract
The utility model discloses a nuclide detection device for medium and low radioactive wastes, which comprises a rotary translation platform device for a waste barrel, a detector lifting platform device and a radioactive source lifting platform device which are respectively arranged at two sides of the rotary translation platform device for the waste barrel, and an electrical appliance operation control cabinet; the detector lifting platform device comprises a detector lifting platform main frame, a detector lifting platform, a detector lifting transmission mechanism, an electric refrigeration radiation detector and a collimator; the radioactive source lifting platform device comprises a main framework of the radioactive source lifting platform, a radioactive source lifting transmission mechanism and a radioactive source storage chamber; the waste bin rotary translation platform device comprises a fixed frame, a weighing sensor, a base frame, a translation platform, a waste bin rotary mechanism, a waste bin translation transmission mechanism and a waste bin bearing disc. The utility model solves the problems of single detection method, limited size of the waste barrel to be detected, inconvenient later maintenance, higher cost and the like of the existing detection device.
Description
Technical Field
The utility model relates to a radioactive detection technology, in particular to a nuclide detection device for medium and low radioactive wastes.
Background
With the rapid development of nuclear power facilities and the high-volume use of nuclear materials, a large amount of low-to-medium radioactive waste is inevitably produced, and the radioactivity can be classified into exempt waste, low-level radioactive waste, medium-level radioactive waste and high-level radioactive waste according to the requirements of the national standard classification of radioactive waste (GB9133-1995) according to the half-life and the radioactivity level, wherein the medium-to-low radioactive waste accounts for more than 95% of the volume of the total radioactive waste. After being solidified and reduced in volume, the radioactive wastes are stored in a cement barrel or a steel barrel and transported into a waste temporary storage warehouse of a nuclear power plant for final disposal. According to the requirements of the national standard of temporary storage regulation of low and medium level radioactive solid wastes (GB11928-1989), the radioactive waste barrels are classified according to the specific activity, half-life, toxicity and waste treatment requirements of the wastes and are respectively put in storage before final disposal.
At present, the devices for detecting nuclear waste basically rely on import devices, such as a Karper WM2200 standard Segmented Gamma scanning system, a WM2900TGS Gamma waste barrel tomography detector, Antech detection system series G3250-220, Wide Range Segmented Gamma Scanner, G3850 Tomoghic Gamma Scanner, a Karper standard Segmented Gamma scanning system (SGS), and the like, which have the problems of high cost, difficult maintenance, single detection method and technology, few accessories, limited size of the waste barrel to be detected, and the like, so that the development of a set of medium and low radioactive waste nuclide detection devices to replace the import devices is urgently needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a nuclide detection device for medium and low radioactive wastes, which aims to solve the problems that the existing detection device is limited abroad in technology, expensive in price, single in detection method and technology, limited in size of a waste barrel to be detected, inconvenient in later maintenance, high in cost and the like.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a nuclide detection device for medium and low radioactive wastes comprises a rotary translation platform device for a waste barrel, a detector lifting platform device and a radioactive source lifting platform device which are respectively arranged at two sides of the rotary translation platform device for the waste barrel, and an electrical appliance operation control cabinet;
the detector lifting platform device comprises a detector lifting platform main frame, a detector lifting platform, a detector lifting transmission mechanism, an electric refrigeration radiation detector and a collimator;
the detector lifting platform is arranged on the detector lifting platform main frame and vertically moves along the detector lifting platform main frame through the detector lifting transmission mechanism, and the electric refrigeration radiation detector is connected with the collimator and is arranged on the detector lifting platform;
the radioactive source lifting platform device comprises a main framework of the radioactive source lifting platform, a radioactive source lifting transmission mechanism and a radioactive source storage chamber;
the radioactive source lifting platform is arranged on the radioactive source lifting platform main frame and vertically moves along the radioactive source lifting platform main frame through the radioactive source lifting transmission mechanism, and the radioactive source storage chamber is arranged on the radioactive source lifting platform;
the waste bin rotary translation platform device comprises a fixed frame, a weighing sensor, a base frame, a translation platform, a waste bin rotary mechanism, a waste bin translation transmission mechanism and a waste bin bearing disc;
the weighing sensor is arranged on the fixed frame, the base frame is arranged on the weighing sensor, the translation platform is arranged on the base frame and moves horizontally along the base frame through the waste bucket translation transmission mechanism, and the waste bucket bearing disc is arranged on the translation platform through the waste bucket rotating mechanism;
the electrical appliance operation control cabinet is used for controlling the detector lifting transmission mechanism, the radioactive source lifting transmission mechanism, the waste barrel translation transmission mechanism and the waste barrel rotating mechanism, and acquiring data of the electric refrigeration radiation detector and the weighing sensor.
Preferably, the detector lifting transmission mechanism comprises a detector lifting servo motor, a detector planetary reducer, a detector transmission screw rod and a detector bearing chamber;
the output side of the detector lifting servo motor is connected with the detector planetary reducer and is arranged at the bottom position of the detector lifting platform main frame, a detector bearing is arranged in the detector bearing chamber and is arranged at the top position of the detector lifting platform main frame through a detector mounting seat, the lower end of the detector transmission lead screw is connected with the detector planetary reducer through a detector coupler, and the upper end of the detector transmission lead screw is connected with the detector bearing;
the detector transmission screw is provided with a detector transmission screw nut, and the detector transmission screw nut is connected with the detector lifting platform; also comprises
Locate 2 symmetrical vertical detector linear guide that set up on the detector lift platform main frame, locate 2 of detector lift platform's side with the detector slider that detector linear guide is corresponding, the detector slider is followed detector linear rail moves.
Preferably, the upper surface of the detector lifting platform is further provided with a positioning foot seat, and the positioning foot seat is provided with an adjusting seat.
Preferably, the electrically-cooled radiation detector is a high-purity germanium gamma spectrometer.
Preferably, the radioactive source lifting transmission mechanism comprises a radioactive source lifting servo motor, a radioactive source planetary reducer, a radioactive source transmission screw rod and a radioactive source bearing chamber;
the output side of the radioactive source lifting servo motor is connected with the radioactive source planetary reducer and is arranged at the bottom position of the radioactive source lifting platform main frame, a radioactive source bearing is arranged in the radioactive source bearing chamber and is arranged at the top position of the radioactive source lifting platform main frame through a radioactive source mounting seat, the lower end of the radioactive source transmission lead screw is connected with the radioactive source planetary reducer through a radioactive source coupler, and the upper end of the radioactive source transmission lead screw is connected with the radioactive source bearing;
a radioactive source transmission screw nut is arranged on the radioactive source transmission screw rod and connected with the radioactive source lifting platform; also comprises
The radioactive source lifting platform comprises 2 symmetrical vertical radioactive source linear guide rails arranged on a main frame of the radioactive source lifting platform, and 2 radioactive source sliding blocks arranged on the side surface of the radioactive source lifting platform and corresponding to the radioactive source linear guide rails, wherein the radioactive source sliding blocks move along the radioactive source linear rails.
Preferably, the waste bin translation drive mechanism comprises a waste bin translation servo motor, a waste bin translation planetary reducer, a waste bin translation drive screw, and a waste bin translation bearing housing;
the output side of the waste bin translation servo motor is connected with the waste bin translation planetary reducer and is arranged at the rear end position of the base frame, a waste bin translation bearing is arranged in the waste bin translation bearing chamber and is arranged at the front end position of the base frame through a waste bin translation mounting seat, one end of the waste bin translation transmission screw rod is connected with the waste bin translation planetary reducer through a waste bin translation coupling, and the other end of the waste bin translation transmission screw rod is connected with the waste bin translation bearing; also comprises
Locate 2 symmetry levels of base frame's upper surface are to the waste bin translation linear guide who sets up, locate the lower surface of translation platform 2 with the corresponding waste bin translation spout of waste bin translation linear guide, waste bin translation spout is followed waste bin translation linear rail moves.
Preferably, the waste bin rotary mechanism comprises a waste bin rotary servomotor, a waste bin rotary reducer, a waste bin rotary drive gear and a waste bin rotary toothed bearing;
the output side of the waste bin rotary servo motor is connected with the waste bin rotary speed reducer and is arranged on the lower surface of the translation platform, the waste bin rotary toothed bearing is arranged on the upper surface of the translation platform through a toothed bearing mounting seat, and the waste bin bearing disc is arranged on the waste bin rotary toothed bearing;
the trash can rotation driving gear is provided on an output side of the trash can rotation reducer and engaged with the trash can rotation toothed bearing.
Preferably, the radioactive source storage chamber has a transmission source therein;
the transmission source is provided with 2 types, one type is Eu-152 source, and the other type is Co-60 source.
Preferably, the electric appliance operation control cabinet is provided with an operation platform.
The nuclide detection device for the medium and low radioactive wastes provided by the utility model has the following beneficial effects:
1) the product localization degree is high, the cost control is reliable, and the system performance is stable;
2) compared with the existing product, the waste bin measuring device can simultaneously meet the requirements of 200L and 400L waste bin measurement;
3) the control system can stably run in a high-salt high-humidity environment;
4) the automation of the measuring process is high, and a set of measuring actions can be completed by one key;
5) the system operation and detection precision reaches or even exceeds the similar products at home and abroad;
6) and various measuring methods are adopted, so that the requirements of different precisions and working efficiency are met.
Drawings
FIG. 1 is a schematic front view of a nuclide detection device for low radioactive waste in accordance with the present invention;
FIG. 2 is a schematic top view of the low radioactive waste nuclide detection arrangement of the present invention;
FIG. 3 is a schematic front view of a detector lift platform assembly of the low radioactive waste nuclide detection assembly of the present invention;
FIG. 4 is a schematic left side view of a detector lift platform assembly of the low radioactive waste nuclide detection assembly of the present invention;
FIG. 5 is a schematic top view of a detector lift platform assembly of the low radioactive waste nuclide detection assembly of the present invention;
FIG. 6 is a schematic front view of a radiation source elevating platform assembly of the low radioactive waste nuclide detection apparatus of the present invention;
FIG. 7 is a schematic left side view of a source lift platform assembly of the low radioactive waste nuclide detection apparatus of the present invention;
FIG. 8 is a schematic front view of a waste bin rotary translation platform assembly of the low radioactive waste nuclide detection apparatus of the present invention;
FIG. 9 is a schematic view in the direction A-A of FIG. 8;
FIG. 10 is a schematic top view of a waste bin rotary translation stage assembly of the low radioactive waste nuclide detection arrangement of the present invention;
FIG. 11 is a schematic diagram of the detection principle of the waste bin rotary translation platform assembly of the low radioactive waste nuclide detection apparatus of the present invention.
Detailed Description
In order to better understand the technical solutions of the present invention, the following further describes the technical solutions of the present invention with reference to the accompanying drawings and examples.
Referring to fig. 1 to 2, the nuclide detection device for middle and low radioactive wastes provided by the present invention includes a rotation and translation platform device 1 for the waste bin, a detector lifting platform device 2 and a radioactive source lifting platform device 3 respectively disposed at two sides of the rotation and translation platform device 1 for the waste bin, and an electrical appliance operation control cabinet.
Referring to fig. 3 to 5, the detector lifting platform device 2 includes a detector lifting platform main frame 201, a detector lifting platform 202, a detector lifting transmission mechanism, an electric refrigeration radiation detector 203, and a collimator 204.
The detector lifting platform 202 is arranged on the detector lifting platform main frame 201 and vertically moves up and down along the detector lifting platform main frame 201 through a detector lifting transmission mechanism, and the electric refrigeration radiation detector 203 is connected with the collimator 204 and is arranged on the detector lifting platform 202.
The detector lifting transmission mechanism comprises a detector lifting servo motor 205, a detector planetary reducer 206, a detector transmission screw 207 and a detector bearing chamber 208.
The output side of the detector lifting servo motor 205 is connected with the input side of the detector planetary reducer 206 and is arranged at the bottom position of the detector lifting platform main frame 201, a detector bearing 209 is arranged in a detector bearing chamber 208 and is arranged at the top position of the detector lifting platform main frame 201 through a detector mounting seat 210, the lower end of a detector transmission screw 207 is connected with the output side of the detector planetary reducer 206 through a detector coupling 211, and the upper end of the detector transmission screw is connected with the detector bearing 209.
The detector transmission screw 207 is provided with a detector transmission screw nut, the detector transmission screw nut is provided with a screw nut connecting seat 212, and the screw nut connecting seat 212 is connected with the detector lifting platform 202. Also comprises
The main frame 201 of the detector lifting platform is also provided with 2 symmetrical detector linear guide rails 213 which are vertically arranged.
The back side surface of the detector lifting platform 202 is also provided with 2 detector sliding blocks corresponding to the detector linear guide rail 213, and the detector sliding blocks are embedded in the detector linear guide rail 213 and move up and down along the detector linear track 213, so that the detector lifting platform 202 is driven to move up and down along the detector lifting platform main frame 201, the lifting stroke is 0-1.2 m, and the precision is 1 mm/m.
The detector lifting platform 202 is a horizontal table top, the size is 1.0m multiplied by 0.5m, the bearing capacity is 400kg, the integral deformation is less than 1mm, the upper surface of the detector lifting platform is also provided with a positioning foot base 214, and the positioning foot base 214 is provided with an adjusting base 215 for adjusting, positioning and fixedly mounting the electric refrigeration radiation detector 203.
The electric refrigeration radiation detector 203 is a high-purity germanium gamma spectrometer, is of a common P type, is used for electric refrigeration, has the detection efficiency of 30 percent, is larger than 16k channels of a digital multichannel spectrometer, and has the energy resolution ratio of less than 10 keV.
The collimator 204 is made of steel-lead materials, is processed and shaped by steel, and is filled with middle lead by pouring. The thickness of the steel lining is 1cm, the thickness of the lead is not less than 6cm, the size of the collimation opening is 20cm multiplied by 9cm, and the depth is 25 cm. And (5) shielding the detector crystal, wherein the diameter of a shielding hole is 9cm, and the depth is 15 cm.
Referring to fig. 6 to 7, the radiation source lifting platform device 3 includes a main frame 301 of the radiation source lifting platform, a radiation source lifting platform 302, a radiation source lifting transmission mechanism, and a radiation source storage chamber.
The radioactive source lifting platform 302 is arranged on the radioactive source lifting platform main frame 301 and vertically moves up and down along the radioactive source lifting platform main frame 301 through a radioactive source lifting transmission mechanism, the radioactive source storage chamber is arranged on the radioactive source lifting platform 302, and the up-and-down movement of the radioactive source lifting platform 302 and the up-and-down movement of the detector lifting platform 202 are set to be synchronous.
The radioactive source lifting transmission mechanism comprises a radioactive source lifting servo motor 303, a radioactive source planetary reducer 304, a radioactive source transmission lead screw 305 and a radioactive source bearing chamber 306.
The output side of the radioactive source lifting servo motor 303 is connected with the input side of the radioactive source planetary reducer 304 and is arranged at the bottom position of the radioactive source lifting platform main frame 301, a radioactive source bearing 307 is arranged in the radioactive source bearing chamber 306 and is arranged at the top position of the radioactive source lifting platform main frame 301 through a radioactive source mounting seat 308, the lower end of a radioactive source transmission screw 305 is connected with the output side of the radioactive source planetary reducer 304 through a radioactive source coupling 309, and the upper end of the radioactive source transmission screw is connected with the radioactive source bearing 307.
The radioactive source transmission screw 305 is provided with a radioactive source transmission screw nut, the radioactive source transmission screw nut is provided with a screw nut connecting seat 310, and the screw nut connecting seat 310 is connected with the radioactive source lifting platform 302. And also comprises
The main frame 301 of the radiation source lifting platform is also provided with 2 symmetrical radiation source linear guide rails 311 which are vertically arranged.
The lateral surface of the radioactive source lifting platform 302 is also provided with 2 radioactive source sliding blocks corresponding to the radioactive source linear guide rails 311, the radioactive source sliding blocks are embedded in the radioactive source linear guide rails 311 and move up and down along the radioactive source linear rails 311, so that the radioactive source lifting platform 302 is driven to move up and down along the radioactive source lifting platform main frame 301, the lifting stroke is 0-1.2 m, and the precision is 1 mm/m.
The radioactive source lifting platform 302 is a horizontal platform surface, the size of the horizontal platform surface is 0.5m multiplied by 0.5m, the load bearing capacity is 200kg, the integral deformation is less than 1mm, and the horizontal platform surface is used for placing a radioactive source storage chamber 306 and needs related accessories for fixing to prevent inclined falling. The parts are externally wrapped with sheet metal, the moving parts need oil lubrication, and related dust covers are provided.
The radioactive source storage chamber 306 is used for placing a transmission source, and the design requirements are as follows: a Co-60 source of 10mCi is attenuated by lead (thickness 7cm) and steel lining (thickness 1cm) and the surface dose is less than 25. mu.Sv/h.
The gamma ray emission control of the transmission source is realized by adopting a rotary transmission source, and a double-source mode is planned to be adopted in consideration of penetrability of media with different densities, wherein the source 1 is Eu-152, and the source 2 is Co-60. When the transmission source is aligned with the collimation aperture, radiation is emitted. When the transmission source rotates and is dislocated with the collimation hole, the ray is blocked, and no ray is emitted.
The back of the transmission source chamber is provided with a pointer which indicates the relative position of the source from the collimating hole, if the pointer is closed, the source and the collimating hole are dislocated, and the ray can not be emitted. If directed at the source 1, the source 1 is aligned with the collimation aperture and the radiation of the source 1 can exit.
As shown in connection with fig. 8 to 10, the waste bin rotary-translational platform device 1 comprises a fixed frame 101, a load cell 102, a base frame 103, a translational platform 104, a waste bin rotary mechanism, a waste bin translational transmission mechanism and a waste bin carrying tray 105.
The load cell 102 is disposed on the fixed frame 101, the base frame 103 is disposed on the load cell 102, the translation platform 204 is disposed on the base frame 103 and horizontally reciprocates along the base frame 104 through the waste bin translation transmission mechanism, and the waste bin carrying tray 105 is disposed on the translation platform 104 through the waste bin rotation mechanism for placing the waste bin and driving the waste bin to rotate.
The waste bin translation drive mechanism includes a waste bin translation servo motor 106, a waste bin translation planetary gear reducer 107, a waste bin translation drive screw 108, and a waste bin translation bearing housing 109.
The output side of the waste bin translation servo motor 106 is connected with the input side of the waste bin translation planetary reducer 107 and is arranged at the rear end position of the base frame 103, a waste bin translation bearing 110 is arranged in the waste bin translation bearing chamber 109 and is arranged at the front end position of the base frame 103 through a waste bin translation mounting seat, one end of a waste bin translation transmission screw 108 is connected with the output side of the waste bin translation planetary reducer 107 through a waste bin translation coupling 111, the other end of the waste bin translation transmission screw is connected with the waste bin translation bearing 110, a waste bin translation transmission screw nut is arranged on the waste bin translation transmission screw 108, and the waste bin translation transmission screw nut is connected with the translation platform 104 through a screw connecting seat 118. And also comprises
The upper surface of the base frame 103 is further provided with 2 symmetrical and horizontally arranged waste bin translation linear guide rails 112.
The lower surface of the translation platform 104 is further provided with 2 trash can translation chutes 113 corresponding to the trash can translation linear rails 112, and the trash can translation chutes 113 move along the trash can translation linear rails 112, so as to drive the translation platform 104 to move horizontally.
The trash can rotating mechanism includes a trash can rotating servo motor 114, a trash can rotating reducer 115, a trash can rotating drive gear 116, and a trash can rotating toothed bearing 117.
The output side of the waste bin rotary servomotor 114 is connected to the input side of the waste bin rotary reducer 115 and is disposed together on the lower surface of the translation platform 104, a motor mount 118 for mounting and fixing the waste bin rotary servomotor 114 is disposed on the lower surface of the translation platform 104, a waste bin rotary toothed bearing 117 is disposed on the upper surface of the translation platform 104 through a toothed bearing mount 119, and a waste bin carrying plate 105 is disposed on the waste bin rotary toothed bearing 117.
A trash can rotation driving gear 116 is provided on an output side of the trash can rotation reducer 115 and engaged with the trash can rotation toothed bearing 117.
The electrical appliance operation control cabinet is provided with an operation platform for controlling the detector lifting transmission mechanism, the radioactive source lifting transmission mechanism, the waste barrel translation transmission mechanism and the waste barrel rotating mechanism, collecting data of the electric refrigeration radiation detector 203 and the weighing sensor 102, collecting data, recording and outputting the data and the like.
In the low radioactive waste nuclide detection device, the driving forms of a detector lifting platform device 2 and a radioactive source lifting platform device 3 are consistent, a servo motor is connected with a planetary gear reducer to drive a ball screw to rotate, and the rotating motion of the motor is converted into the linear motion of a moving part through the screw. Because of certain positioning requirements on the moving parts, a servo motor is adopted to realize high-precision positioning. The translation driving of the waste barrel rotation translation platform device 1 is realized by connecting a servo motor with a planetary gear reducer to drive a lead screw to rotate, the rotation driving adopts the servo motor to directly connect with a crossed roller gear bearing, and then the gear bearing is connected with a rotation driving part to drive the waste barrel to rotate, and the speed and the precision of the waste barrel rotation driving device are controlled by the servo motor. Under the structure, the mounting position of the load cell 102 is positioned at the bottom of the base frame 103, the lower part of the load cell 102 is connected with the fixed frame 101 on the ground through bolts, the upper part of the load cell 102 is connected with the base frame 103 through screws, and the number of the load cells 102 is 4 and is distributed at four angular positions of the base frame 103.
Referring to fig. 11, the apparatus for detecting nuclides in low radioactive waste according to the present invention implements the following operations:
1) the radioactive source lifting platform 302 moves up and down along the y-axis direction and is used for placing a transmission source;
2) the waste barrel rotation and translation platform device 1 can drive the waste barrel 400 to rotate around the y axis and can move back and forth along the z axis;
3) the detector lifting platform 202 moves up and down along the y-axis direction to place the electric refrigeration radiation detector 203.
The design parameters of the radioactive source lifting platform device 3 are as follows:
1) the connecting line of the central line of the transmission source and the central line of the electric refrigeration radiation detector 203 is parallel to the x axis and vertical to the z axis all the time, and the effective travel range of the radioactive source lifting platform 302 in the y axis direction is 1200 mm;
2) the deadweight of the main frame 301 and the radiation source elevating platform 302 is less than 300kg (mainly, the weight of lead for shielding).
The design parameters of the detector lifting platform device 2 are as follows:
1) the effective travel range of the detector lifting platform 202 along the y-axis direction is 1200mm, accurate positioning in the y-axis direction can be achieved, and the positioning accuracy is 1 mm/m. When the detector lifting platform 202 is at the lowest point in the y-axis direction, the central point of the end surface of the electric refrigeration radiation detector 203 is on the plane where the bottom surface of the waste bucket is located, and when the detector lifting platform 202 is at the highest point in the y-axis direction, the central point of the end surface of the electric refrigeration radiation detector 203 is on the plane where the top surface of the waste bucket is located;
2) the main frame 201 of the detector lifting platform can be manually adjusted in the x-axis direction according to the requirement;
3) the self weight of the main frame 201 of the detector lifting platform and the detector lifting platform 202 is below 600 kg;
4) the lifting speed of the detector lifting platform 202 is 50mm/s at most.
The design parameters of the waste bin rotary translation platform device 1 are as follows:
1) the waste bin rotary and translational platform device 1 is mainly used for placing a waste bin 400, the weighing design is 2000kg, two operation modes of uniform rotation or certain angle rotation of the waste bin 400 are realized, and the maximum rotation speed is 4 rpm; the waste barrel is rotated by a certain angle, such as 12 degrees, 24 degrees, 36 degrees and the like, and the positioning precision is 360 degrees +/-1 degree.
2) The waste barrel rotation translation platform device 1 can translate along a z-axis during rotation and stay, the effective translation stroke of the z-axis is 1000mm, and the positioning precision is 1 mm/m;
3) the maximum translation speed of the waste bucket rotary translation platform device 1 in the z-axis direction is 50mm/s, and the positioning precision is 1 mm/m.
The detection method of the nuclide detection device for the medium and low radioactive wastes comprises the following steps:
s1, controlling a waste barrel translation transmission mechanism (a waste barrel translation servo motor 106 is decelerated by a waste barrel translation planetary speed reducer 107 and is connected with a waste barrel translation transmission lead screw 108 through a coupler 111) through an electric appliance operation control cabinet (a PLC is arranged in the cabinet) to drive a translation platform 104 to move to a waste barrel taking/placing station to be detected, and waiting for the waste barrel to be detected to fall into a limiting groove on a waste barrel bearing plate 105;
s2, operating the operating platform by personnel, controlling the waste bin translation transmission mechanism (the waste bin translation servo motor 106 is decelerated by the waste bin translation planetary reducer 107 and connected with the waste bin translation transmission screw rod 108 through the coupler 111) through the electric appliance operation control cabinet to drive the translation platform 104 to move to a measurement station, and acquiring the weight data of the waste bin through the weighing sensor 102 (the weight data is uploaded to a computer terminal through the wire collecting box of the weighing sensor 102);
s3, operating the operating platform by personnel, controlling a detector lifting transmission mechanism (after the detector lifting servo motor 205 is decelerated by a detector planetary reducer 206, the detector lifting servo motor is connected with a detector transmission screw 207 through a detector coupler 211) and a radioactive source lifting transmission mechanism (after the radioactive source lifting servo motor 303 is decelerated by a radioactive source planetary reducer 304, the radioactive source lifting servo motor 303 is connected with a radioactive source transmission screw 305 through a radioactive source coupler 309) through an electric appliance operation control cabinet to drive the corresponding detector lifting platform 202 and the radioactive source lifting platform 302 to lift to initial measurement positions;
s4, operating the operating platform by personnel, controlling a waste barrel rotating mechanism (the waste barrel rotating servo motor 114 drives a waste barrel rotating driving gear 116 and a waste barrel rotating toothed bearing 117 through a waste barrel rotating speed reducer 115) to drive a waste barrel bearing disc 105 (together with the waste barrel) to rotate through an electric appliance operating control cabinet, and carrying out initial station measurement by the electric refrigeration radiation detector 203 on the detector lifting platform 202 and the transmission source on the radioactive source lifting platform 302;
s5, after the initial station measurement is completed, the loop step S3 makes the detector lifting platform 202 and the radioactive source lifting platform 302 lift to the second measurement position through the control of the electric appliance operation control cabinet, and then the electric refrigeration radiation detector 203 on the detector lifting platform 202 and the transmission source on the radioactive source lifting platform 302 perform the second station measurement;
and S6, after the measurement is finished, the electric appliance operation control cabinet controls the waste bin translation transmission mechanism to drive the translation platform 104 to move to the to-be-measured waste bin taking/placing station, and the reloading work of the to-be-measured waste bin is finished.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (9)
1. A kind of medium, low radioactive waste nuclide detection device, characterized by that: the device comprises a waste barrel rotating and translating platform device, a detector lifting platform device and a radioactive source lifting platform device which are respectively arranged at two sides of the waste barrel rotating and translating platform device, and an electrical appliance operation control cabinet;
the detector lifting platform device comprises a detector lifting platform main frame, a detector lifting platform, a detector lifting transmission mechanism, an electric refrigeration radiation detector and a collimator;
the detector lifting platform is arranged on the detector lifting platform main frame and vertically moves along the detector lifting platform main frame through the detector lifting transmission mechanism, and the electric refrigeration radiation detector is connected with the collimator and is arranged on the detector lifting platform;
the radioactive source lifting platform device comprises a main framework of the radioactive source lifting platform, a radioactive source lifting transmission mechanism and a radioactive source storage chamber;
the radioactive source lifting platform is arranged on the radioactive source lifting platform main frame and vertically moves along the radioactive source lifting platform main frame through the radioactive source lifting transmission mechanism, and the radioactive source storage chamber is arranged on the radioactive source lifting platform;
the waste bin rotary translation platform device comprises a fixed frame, a weighing sensor, a base frame, a translation platform, a waste bin rotary mechanism, a waste bin translation transmission mechanism and a waste bin bearing disc;
the weighing sensor is arranged on the fixed frame, the base frame is arranged on the weighing sensor, the translation platform is arranged on the base frame and moves horizontally along the base frame through the waste barrel translation transmission mechanism, and the waste barrel bearing disc is arranged on the translation platform through the waste barrel rotation mechanism;
the electrical appliance operation control cabinet is used for controlling the detector lifting transmission mechanism, the radioactive source lifting transmission mechanism, the waste barrel translation transmission mechanism and the waste barrel rotating mechanism, and acquiring data of the electric refrigeration radiation detector and the weighing sensor.
2. The apparatus for detecting nuclides for intermediate and low radioactive waste as claimed in claim 1 wherein: the detector lifting transmission mechanism comprises a detector lifting servo motor, a detector planetary reducer, a detector transmission lead screw and a detector bearing chamber;
the output side of the detector lifting servo motor is connected with the detector planetary reducer and is arranged at the bottom position of the detector lifting platform main frame, a detector bearing is arranged in the detector bearing chamber and is arranged at the top position of the detector lifting platform main frame through a detector mounting seat, the lower end of the detector transmission screw rod is connected with the detector planetary reducer through a detector coupler, and the upper end of the detector transmission screw rod is connected with the detector bearing;
the detector transmission screw is provided with a detector transmission screw nut, and the detector transmission screw nut is connected with the detector lifting platform; also comprises
Locate 2 symmetrical vertical detector linear guide that set up on the detector lift platform main frame, locate 2 of detector lift platform's side with the detector slider that detector linear guide corresponds, the detector slider is followed detector linear rail moves.
3. The apparatus for detecting nuclides in medium and low radioactive waste as claimed in claim 2 wherein: the upper surface of the detector lifting platform is also provided with a positioning foot seat, and the positioning foot seat is provided with an adjusting seat.
4. A nuclide detection device for wastes of medium and low radioactivity according to claim 1, characterized in that: the electric refrigeration radiation detector is a high-purity germanium gamma spectrometer.
5. The apparatus for detecting nuclides for intermediate and low radioactive waste as claimed in claim 1 wherein: the radioactive source lifting transmission mechanism comprises a radioactive source lifting servo motor, a radioactive source planetary reducer, a radioactive source transmission lead screw and a radioactive source bearing chamber;
the output side of the radioactive source lifting servo motor is connected with the radioactive source planetary reducer and is arranged at the bottom position of the main framework of the radioactive source lifting platform, a radioactive source bearing is arranged in the radioactive source bearing chamber and is arranged at the top position of the main framework of the radioactive source lifting platform through a radioactive source mounting seat, the lower end of the radioactive source transmission lead screw is connected with the radioactive source planetary reducer through a radioactive source coupler, and the upper end of the radioactive source transmission lead screw is connected with the radioactive source bearing;
a radioactive source transmission screw nut is arranged on the radioactive source transmission screw rod and connected with the radioactive source lifting platform; also comprises
The radioactive source lifting platform comprises 2 symmetrical vertical radioactive source linear guide rails arranged on a main frame of the radioactive source lifting platform, and 2 radioactive source sliding blocks arranged on the side surface of the radioactive source lifting platform and corresponding to the radioactive source linear guide rails, wherein the radioactive source sliding blocks move along the radioactive source linear rails.
6. The apparatus for detecting nuclides for intermediate and low radioactive waste as claimed in claim 1 wherein: the waste bin translation transmission mechanism comprises a waste bin translation servo motor, a waste bin translation planetary reducer, a waste bin translation transmission lead screw and a waste bin translation bearing chamber;
the output side of the waste bin translation servo motor is connected with the waste bin translation planetary reducer and is arranged at the rear end position of the base frame, a waste bin translation bearing is arranged in the waste bin translation bearing chamber and is arranged at the front end position of the base frame through a waste bin translation mounting seat, one end of the waste bin translation transmission screw is connected with the waste bin translation planetary reducer through a waste bin translation coupling, and the other end of the waste bin translation transmission screw is connected with the waste bin translation planetary reducer; also comprises
Locate 2 symmetry levels of base frame's upper surface to the waste bin translation linear guide that sets up, locate 2 of lower surface of translation platform with the corresponding waste bin translation spout of waste bin translation linear guide, waste bin translation spout is followed waste bin translation linear rail moves.
7. The apparatus for detecting nuclides for intermediate and low radioactive waste as claimed in claim 1 wherein: the waste bin rotary mechanism comprises a waste bin rotary servo motor, a waste bin rotary speed reducer, a waste bin rotary driving gear and a waste bin rotary toothed bearing;
the output side of the waste bin rotary servo motor is connected with the waste bin rotary speed reducer and is arranged on the lower surface of the translation platform, the waste bin rotary toothed bearing is arranged on the upper surface of the translation platform through a toothed bearing mounting seat, and the waste bin bearing disc is arranged on the waste bin rotary toothed bearing;
the trash can rotation driving gear is provided on an output side of the trash can rotation reducer and engaged with the trash can rotation toothed bearing.
8. A nuclide detection device for wastes of medium and low radioactivity according to claim 1, characterized in that: the radioactive source storage chamber is internally provided with a transmission source;
the transmission source is provided with 2 types, one type is Eu-152 source, and the other type is Co-60 source.
9. The apparatus for detecting nuclides for intermediate and low radioactive waste as claimed in claim 1 wherein: and the electric appliance operation control cabinet is provided with an operation platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220277539.1U CN217007699U (en) | 2022-02-11 | 2022-02-11 | Nuclide detection device for medium and low radioactive wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220277539.1U CN217007699U (en) | 2022-02-11 | 2022-02-11 | Nuclide detection device for medium and low radioactive wastes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217007699U true CN217007699U (en) | 2022-07-19 |
Family
ID=82392625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220277539.1U Active CN217007699U (en) | 2022-02-11 | 2022-02-11 | Nuclide detection device for medium and low radioactive wastes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217007699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325808A (en) * | 2022-02-11 | 2022-04-12 | 上海瑞纽机械股份有限公司 | Device and method for detecting nuclide of medium and low radioactive waste |
-
2022
- 2022-02-11 CN CN202220277539.1U patent/CN217007699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325808A (en) * | 2022-02-11 | 2022-04-12 | 上海瑞纽机械股份有限公司 | Device and method for detecting nuclide of medium and low radioactive waste |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217007699U (en) | Nuclide detection device for medium and low radioactive wastes | |
| US8759768B2 (en) | Device for measuring physical quantities of nuclear materials and method of employing such a device | |
| CN102253401A (en) | Mechanical device used for scanning measurement of chromatographic Gamma | |
| CN111157553A (en) | X-ray flaw detector detection platform and measurement method | |
| CN87100673A (en) | Gas cooled nuclear reactor with spherical operation element fixed nuclear core | |
| US11567224B2 (en) | Apparatus for analyzing and measuring nuclides and concentration thereof in radioactive waste | |
| CN2711727Y (en) | Miniature gamma ray industrial computerized tomography imaging device | |
| CN104793235A (en) | Detector dead time automatic regulating device for radioactive waste detection system | |
| CN114325808A (en) | Device and method for detecting nuclide of medium and low radioactive waste | |
| CN208654066U (en) | A kind of X-ray digital imaging detection system for nuclear fuel rod non-destructive testing | |
| CN117233819A (en) | Multi-functional multi-mode measuring device of bulky radioactive waste bucket | |
| US4202729A (en) | Device for the charge and discharge of nuclear reaction fuel assemblies | |
| CN208464997U (en) | A kind of radioactive source focal length positioning device | |
| CN206726785U (en) | Rectangular narrow channel thermal neutron fluence rate measuring system | |
| CN111722259B (en) | Low-level radioactive waste barrel subsection gamma scanning device | |
| CN102590847B (en) | Special gamma scanning measuring system for hot chamber and installation method thereof | |
| CN221054728U (en) | In-situ gamma spectrometer for monitoring primary deposition source item | |
| KR910007717B1 (en) | Method and apparatus to determine the activity volume and to estimate the plutonium mass contained in waste | |
| CN218729920U (en) | Transfer trolley for transferring radioactive substance transfer container | |
| CN218331991U (en) | Radioactive waste barrel measuring device | |
| CN220536911U (en) | Track handling device and transfer system of radioactive target body | |
| CN212374262U (en) | Multifunctional conveying track | |
| CN203688470U (en) | Automated energy dispersion X fluorescence analysis test platform | |
| CN116125521A (en) | Device and method for rapidly monitoring alpha pollution of radioactive polluted sandy soil | |
| CN116953765A (en) | Medium-low radioactive waste activity measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |