CN113484896A - Radioactive substance detection device - Google Patents
Radioactive substance detection device Download PDFInfo
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- CN113484896A CN113484896A CN202110740796.4A CN202110740796A CN113484896A CN 113484896 A CN113484896 A CN 113484896A CN 202110740796 A CN202110740796 A CN 202110740796A CN 113484896 A CN113484896 A CN 113484896A
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- shielding
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- 238000001514 detection method Methods 0.000 title claims abstract description 125
- 239000000941 radioactive substance Substances 0.000 title claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 114
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000004090 dissolution Methods 0.000 claims description 36
- 238000005070 sampling Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000002285 radioactive effect Effects 0.000 description 9
- 239000003814 drug Substances 0.000 description 8
- 230000005855 radiation Effects 0.000 description 5
- 239000012857 radioactive material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- SWJBITNFDYHWBU-UHFFFAOYSA-N [I].[I] Chemical compound [I].[I] SWJBITNFDYHWBU-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/167—Measuring radioactive content of objects, e.g. contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
Abstract
The invention discloses a radioactive substance detection device, which comprises an online detector, wherein the online detector comprises a movable shielding frame body; the shielding tool is arranged on the movable shielding frame body and is provided with a detection channel; and the detection probe is arranged on the shielding tool and is positioned at the top end of the detection channel, and the detection probe is connected with the data processor through a data line. The invention has reasonable design and simple structure, and through reasonably designing the on-line detector, the on-line detector is provided with a plurality of shielding tools, the shielding tools facilitate the working personnel to guide radioactive substances to the closed detection channel, and the detection probe carries out qualitative or quantitative detection on the radioactive substances in the detection channel, so that the radioactive substances cannot leak in the process, the life safety of the working personnel is ensured, and the material to be detected is detected circularly, so that the quality or the volume of the material to be detected cannot be changed in the process, and the detection efficiency and the accuracy are higher.
Description
Technical Field
The invention relates to the field of radioactive material detection, in particular to a radioactive material detection device.
Background
The radioactive detection device is used for detecting the components and the intensity of radioactive nuclides in a solution, realizes qualitative or quantitative detection on radioactive substances of a detected sample mainly through detection of a radioactive detector, and is particularly suitable for detection of radioactive drugs. For the radioactive drug, iodine [ iodine ], [ solution ]131I]The single capsule has the maximum activity of 100-150 mCi, if the dissolution rate of 6 capsules is measured at one time, the total activity of 600-900 mCi, if the manual sampling mode is adopted for measurement, the great radiation irradiation can be caused to the working personnel and the environment.
Disclosure of Invention
Therefore, in order to solve the above-mentioned deficiencies, the invention provides a device for online radioactivity detection, which is reasonable in design, simple in structure and convenient to use, wherein the online detector is reasonably designed, and a plurality of shielding tools are arranged on the online detector, the shielding tools facilitate workers to guide radioactive substances to a closed detection channel, and a detection probe carries out qualitative or quantitative detection on the radioactive position in the detection channel.
The invention is realized by constructing a radioactive substance detection device, which comprises an online detector including
The upper end of the movable shielding frame body is provided with an installation platform; the bottom of this support body is provided with the gyro wheel to this portable shielding support body still installs the handle, mounting platform is provided with the treater and places the support.
The shielding tool is fixedly arranged on the mounting platform, a closed detection channel is arranged in the shielding tool, and a circulating feeding channel is arranged at the bottom of the detection channel; and
and the detection probe is detachably arranged on the shielding tool and is positioned at the top end of the detection channel, and the detection probe is connected with the data processor through a data line.
Preferably, a circulating sampling device is further mounted on the movable shielding frame body, a sample pump pipe is arranged at an inlet port and an outlet port of the circulating sampling device, one end of the sample pump pipe is connected with an external material source, and the other end of the sample pump pipe is connected with the material source after passing through a feeding channel; the purpose of this setting is, the realization is waited the on-line measuring of waiting to examine the material to the material is for the circulation, waits to examine material quality or volume at this in-process and can not change, lets detection efficiency and precision higher, overcomes traditional sample detection, also overcomes the measurement when taking a sample.
Preferably, a shielding plate fixed on the movable shielding frame body is arranged between the circulating sampling device and the shielding tool, and the purpose of the arrangement is to shield the radiation irradiation of radioactive solution in a pump pipe of the material pump and the dissolution instrument to workers, so that the personal safety of the workers is ensured; meanwhile, the interference of radioactive rays in the pump tube and the dissolution instrument on the detection probe can be prevented.
Preferably, the shielding tool comprises
The detection probe mounting part is provided with a cavity for accommodating the detection probe;
the sample pump pipe mounting part is movably mounted at the bottom end of the detection probe mounting part; and
and the detection channel enables the center of the probe to be in linear communication with the top end of the sample pump tube.
Preferably, the bottom end of the detection probe mounting part can be provided with a probe collimation shielding part according to the requirement of a detection sample, the center of the collimation shielding part is provided with a detection hole, and the detection hole is coaxial with the detection channel. The purpose of this setup is to shield the natural background from interfering with the measurement in case the sample can be effectively detected.
Preferably, the shielding part is made of lead, and the purpose of the arrangement is to improve the shielding effect.
Preferably, the bottom end of the sample pump pipe installation part is provided with a detachable base used for fixing the sample pump pipe installation part and the detection probe installation part; wherein the sample pump pipe installation part is installed on the base in a drawer drawing mode, and is convenient to install and disassemble. The purpose of this setting is, uses with the cooperation of test probe installation department, makes the structure more stable, and it is more convenient to install and dismantle, also can realize the location to sample pump line installation department simultaneously.
Preferably, the sample pump tube mounting part comprises:
the mounting base plate is provided with a groove for accommodating a sample pump pipe; and
the mounting cover plate is matched with the mounting bottom plate to form a closed feeding channel;
wherein, the detection channel runs through the mounting cover plate and is communicated with the feeding channel.
Preferably, a bump convenient for pumping is further arranged at the bottom of one end, close to the inlet and the outlet of the sample pump pipe, of the mounting bottom plate. The purpose of this setting is, make the drawer of sample pump pipe installation department that mounting plate and mounting plate constitute more convenient.
Preferably, the dissolution device is connected with the circulation sampling device through a pipeline and comprises a dissolution instrument
The water bath box is internally provided with a plurality of dissolving-out cups which are heated by water bath, and the dissolving-out cups are connected with the circulating sampling device through a sample pump pipe;
the electric box and the control box are used for controlling the temperature, the rotating speed, the time and the like of the medium during the test;
the number of the rotating baskets is the same as that of the dissolving cups, an
The basket pole lifting device is provided with a plurality of basket poles, the rotating basket is arranged on the basket poles in a buckling mode and is driven to move up and down through the basket pole lifting device.
Preferably, the water bath box also comprises a mounting plate for assisting the quick mounting of the spin basket on the basket rod of the spin basket, and the mounting plate is detachably mounted at the upper end of the water bath box;
the mounting plate is provided with rotary basket positioning blocks with the same number as the dissolving-out cups through bolts.
Preferably, the mounting plate comprises a plate body, the plate body is provided with mounting holes which are the same as the dissolving-out cups in number and used for mounting the rotary basket positioning blocks, and bolt mounting holes are formed in two sides of the mounting holes; the mounting hole is used for positioning and mounting a rotating basket positioning block;
preferably, the lower end surface of the plate body is provided with a positioning installation groove matched with the dissolution cup; the mounting groove is convenient for the positioning of the plate body in the dissolving-out part.
The rear side edges of the plate bodies are respectively provided with a clamping lug, and the clamping lugs are convenient for clamping and fastening the plate bodies.
Preferably, the basket pole lifting device comprises
The movable plate is provided with a plurality of rotary basket rods which are the same as the dissolving-out cups in number, so that the rotary basket rods synchronously move up and down, and the bottom of each rotary basket rod is a rotary basket buckling part; and
and the servo motor is fixedly arranged on the dissolution instrument main body, is connected with a lead screw, is provided with a slide block which moves up and down through the rotation of the lead screw, and is fixedly connected with the moving plate.
The basket rod lifting device adopts the motor and the screw rod for transmission, the transmission is accurate, the control is convenient, the up-and-down movement of the basket rod of the rotating basket can be realized, and the installation or the movement of the rotating basket is convenient.
The invention has the following advantages:
the device has the advantages of reasonable design, simple structure, convenient and safe operation, is a device for multi-channel real-time online detection of radioactive solution, and can be simultaneously used for real-time online detection of a plurality of samples. Through the online detector of reasonable design, this online detector is provided with several shielding frock, this shielding frock has made things convenient for the staff to drain radioactive substance to inclosed testing channel, and the test probe carries out qualitative or quantitative detection to radioactive substance in testing channel again, at this in-process, radioactive substance can not expose, staff's personal safety has been guaranteed, online detection has been realized, and it is cyclic detection to detect the material, it can not change to wait to detect material quality and volume at this in-process, the fluid infusion in the experiment has been avoided traditional to dissolve out, let detection efficiency and precision higher.
Meanwhile, the plurality of shielding tools are provided with the detection probes, so that radioactive substance rays can be prevented from penetrating out, and radiation irradiation on personnel can be caused; the interference between rays emitted by radioactive substances in adjacent tools is also prevented, so that the radioactivity detection quality is better, and the anti-interference performance is stronger; and simultaneously, the influence of the environmental radioactivity background is reduced.
Simultaneously online detector is portable, is provided with the gyro wheel of taking the brake in the bottom to be provided with the handle, make things convenient for the staff to remove the assigned position through the handle and detect, let detection device's adaptability stronger.
A circulating sampling device is reasonably designed on the online detector, and the circulating sampling device can lead the material to be detected to be circularly led into the shielding tool so as to facilitate the detection of the detection probe; this circulation sampling device can realize the material circulation, waits to examine material quality or volume and can not change, lets detection efficiency and precision higher.
According to the invention, through reasonably designing the dissolution instrument, automatic feeding and dissolution of materials can be realized, a medicine with radioactivity is dissolved into a solution through the dissolution instrument, and the solution is conveyed to the shielding tool through the circulating sampling device so as to facilitate detection, so that the irradiation of rays to workers is greatly reduced;
this reasonable design mounting panel of degree of dissolving out appearance can make things convenient for the quick installation department in the basket pole of changeing the basket of change of staff, and this mounting panel can realize the location to a plurality of changeing the basket, has avoided artifical long-time contact radioactivity to shine to install in the portion of dissolving out for detachable, the installation is convenient with the dismantlement.
A positioning block for mounting the spin basket is mounted on the mounting plate via bolts, the spin basket positioning block fixes and positions the spin basket, and a plurality of mounting grooves are formed in the bottom of the mounting plate, and the mounting grooves position the mounting plate at the dissolution part.
Drawings
Fig. 1-2 are schematic perspective views of a first embodiment of the present invention;
3-4 are schematic perspective views of an on-line detector in a first embodiment and a second embodiment of the invention;
FIG. 5 is a schematic front view of an on-line detector according to a first embodiment and a second embodiment of the present invention;
FIG. 6 is a schematic top view of an in-line detector according to a first embodiment and a second embodiment of the present invention;
fig. 7 is a schematic view illustrating the installation of a shielding tool on an inspection probe according to the first and second embodiments of the present invention;
fig. 8 is a schematic disassembled view of a shielding tool in the first embodiment and the second embodiment of the present invention;
fig. 9 is a schematic front view of a shielding tool according to a first embodiment and a second embodiment of the present invention;
FIG. 10 is a cross-sectional view of L-L in FIG. 9;
FIG. 11 is an enlarged partial schematic view of X in FIG. 10;
FIG. 12 is a schematic front view of a probe mounting portion according to the first and second embodiments of the present invention;
FIG. 13 is a cross-sectional view taken along line L-L of FIG. 12;
fig. 14 is a schematic perspective view of a mounting baseplate in the first and second embodiments of the invention;
FIG. 15 is a schematic top view of a mounting plate in accordance with first and second embodiments of the invention;
FIG. 16 is a schematic front view of a shield in accordance with first and second embodiments of the invention;
FIG. 17 is a schematic top view of a shield in accordance with first and second embodiments of the invention;
FIG. 18 is a schematic perspective view of a base according to a first embodiment and a second embodiment of the present invention;
FIG. 19 is a schematic perspective view of a dissolution apparatus according to a first embodiment of the invention;
FIGS. 20 and 21 are partial schematic views of the interior of a dissolution apparatus according to an embodiment of the invention;
FIG. 22 is a schematic view of a mounting plate and a spin basket positioning block according to an embodiment of the present invention;
FIG. 23 is a schematic view of a mounting plate and a spin basket positioning block shown disassembled in accordance with an embodiment of the present invention;
fig. 24 and 25 are schematic perspective views of a mounting plate according to a first embodiment of the invention.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 25, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-25; in a first embodiment (the most preferred embodiment),
as shown in FIGS. 3-6, an apparatus for detecting radioactive materials comprises an on-line detector 200 including
The upper end of the movable shielding frame body 201 is provided with a mounting platform; the bottom of this support body is provided with gyro wheel 206 to this portable shielding support body still installs handle 204, mounting platform 201 is provided with treater and places support 206.
The shielding tool 600 is placed on the mounting platform, a closed detection channel is arranged in the shielding tool, and a circulating feeding channel is arranged at the bottom of the detection channel;
and the detection probe 700 is detachably mounted on the shielding tool 600 and is positioned at the top end of the detection channel, and the detection probe 700 is connected with the data processor 500 through a data line.
In this embodiment, a circulation sampling device 205 is further installed on the movable shielding frame body 201, a sample pump pipe is arranged at an inlet port and an outlet port of the circulation sampling device 205, one end of the sample pump pipe is connected with an external material source, and the other end of the sample pump pipe is connected to the material source through a feeding channel.
In this embodiment, a shielding plate 202 fixed to the movable shielding frame 201 is disposed between the cyclic sampling device 205 and the shielding tool 600.
Preferably, the number of the detection probes and the number of the shielding tools are three.
As shown in fig. 7 to 13, in the present embodiment, the shielding tool 600 includes
A detection probe mounting part 10 provided with a cavity 11 for accommodating a detection probe;
the sample pump pipe installation part 20 is movably installed at the bottom end of the detection probe installation part; and
and the detection channel enables the center of the probe to be in linear communication with the top end of the sample pump tube.
In this embodiment, the bottom end of the probe mounting portion can also be provided with a probe alignment shielding member according to different detected samples, and a detection hole is formed in the center of the alignment shielding member and is coaxial with the detection channel. .
Preferably, the shielding member 30 is made of lead.
In this embodiment, the bottom end of the sample pump tube mounting part 20 is provided with a detachable base 40 for fixing the sample pump tube mounting part 20 and the detection probe mounting part 10.
As shown in fig. 14 to 18, in the present embodiment, the sample pump tube mounting portion 20 includes:
a mounting base plate 21 provided with a groove 21-2 for accommodating a sample pump tube; and
a mounting cover plate 22, which is matched with the mounting bottom plate to form a closed feeding channel;
wherein, the detection channel runs through the mounting cover plate and is communicated with the feeding channel.
Preferably, the end part of the groove 21-2 is provided with a flaring 21-1 which is in the same straight line with the detection channel;
preferably, the bottom front end of the mounting base plate 21 is further provided with a projection 21-4 for facilitating extraction.
Preferably, the mounting bottom plate 21 is provided with a limiting groove 21-3 for limiting the mounting cover plate.
Preferably, the detection probe mounting part 10 is provided with a radial mounting groove 12 for mounting the sample pump tube mounting part 20, the radial length of the sample pump tube mounting part 20 is greater than the radial depth of the mounting groove 12, so that a mounting and dismounting part which is located outside the mounting groove 12 and facilitates drawing of the sample pump tube mounting part 20 is formed at the tail part of the sample pump tube mounting part 20, and the bump 21-4 is located at the mounting and dismounting part.
When the detection device detects, the probe is arranged in the probe installation part, the sample to be detected is arranged on the sample pump pipe installation part below the probe, and when the sample to be detected moves below the probe at a constant speed, the probe can detect the radioactivity of the detected sample through the linear detection channel. The probe installation part, the shielding piece and the base are made of shielding materials, so that the radiation of the background of the detection environment can be effectively shielded under the special structural design of the embodiment, the detection accuracy is obviously improved, and meanwhile, the radiation of a sample to be detected to an operator can be effectively reduced.
As shown in fig. 1 and fig. 2, in this embodiment, a dissolution apparatus 100 connected with a circulation sampling device 205 through a pipeline is further included,
as shown in fig. 19 to 21, the dissolution apparatus 100 includes
A water bath tank 105, in which a plurality of dissolution cups 112 heated by water bath are arranged, and the dissolution cups are connected with a circulating sampling device 205 through a feeding pipe;
the same number of spin baskets as the number of dissolution cups 112, an
The basket rod lifting device is arranged in the dissolution instrument main body and is provided with a plurality of rotating basket rods 110, the rotating baskets are arranged on the rotating basket rods 110 in a buckling mode and are driven to move up and down through the basket rod lifting device.
In this embodiment, the device further comprises an electrical box and a control box for controlling the temperature, the rotating speed, the time and the like of the medium during the test.
In this embodiment, a mounting plate 300 for assisting the spin basket to be quickly mounted to the spin basket pole is further included, and the mounting plate 300 is detachably mounted to the upper end of the dissolution part 105;
as shown in fig. 22 to 25, the mounting plate 300 is bolted with the same number of basket positioning blocks 400 as the dissolution cups 112.
Preferably, the mounting plate 300 includes a plate body 301, the plate body 301 having mounting holes 302 for mounting the basket positioning block 400, the number of which is the same as that of the dissolution cups 112, and bolt mounting holes 303 formed on both sides of the mounting holes;
the lower end surface of the plate body 301 is provided with a positioning installation groove 305 matched with the dissolution cup 112;
the rear side edges of the plate bodies 301 are respectively provided with a clamping lug 304.
In this embodiment, the basket pole lifting device comprises
A moving plate 107, on which a number of basket rods 110 equal to the number of dissolution cups 112 are mounted, so that the plurality of basket rods 110 move up and down synchronously, and the bottom of the basket rods 110 is a basket fastening part 111; and
a servo motor 109 fixedly attached to the dissolution apparatus main body, a lead screw 108 connected to the servo motor, a slider 106 vertically moved by rotation of the lead screw, and a moving plate 107 fixedly attached to the slider 106.
When the device is used, a worker places a medicine to be detected in a rotary basket, places the rotary basket on a rotary basket positioning block on the mounting plate, places the mounting plate with the rotary basket placed in a water bath box of a dissolution instrument, positions the medicine through a clamping lug and a positioning mounting groove, controls a servo motor after the mounting plate is placed, drives a lead screw to rotate through the rotation of the servo motor, drives a sliding block on the lead screw to slide downwards, drives a moving plate to move downwards, drives a rotary basket rod to move downwards through the moving plate, is connected with the rotary basket in a buckling mode when a rotary basket buckling part of the rotary basket rod is contacted with the rotary basket, controls the servo motor to rotate reversely, drives the rotary basket to move upwards, stops moving after the rotary basket moves to a certain position, takes off the mounting plate again by the worker, controls the servo motor to rotate reversely at the moment, thereby driving the rotary basket filled with the medicine to enter the dissolution cup, and dissolving the medicine in the dissolution cup;
after the medicine is dissolved out, the material enters the circulating sampling device through the feeding pipe and is output through the sample pump pipe, and after the radioactivity detection is finished, the material flows back to the dissolving-out cup; when the material in the sample pump pipe passes through the feeding channel at a constant speed, the radioactive substance is identified by the detection probe through the detection channel, the detection probe transmits signals to the data processor, the data processor analyzes and processes the signals detected on line to obtain a scale curve of the detection probe, a dissolution curve of the sample and similar factors, and the result is displayed through the display.
Meanwhile, the detection device is movable, the bottom of the detection device is provided with a roller with a brake, the handle is arranged, a worker can conveniently move to a designated position through the handle to detect, and the detection device is stronger in adaptability.
As shown in fig. 3 to 20, the second embodiment (the difference between the first embodiment and the second embodiment is that there is no dissolution apparatus, and the second embodiment has a wider application range):
a radioactive substance detection device comprises an online detector 200 including
The upper end of the movable shielding frame body 201 is provided with a mounting platform; the bottom of this support body is provided with gyro wheel 206 to this portable shielding support body still installs handle 204, mounting platform 201 is provided with treater and places support 206.
The shielding tool 600 is installed on the installation platform, a closed detection channel is arranged in the shielding tool, and a circulating feeding channel is arranged at the bottom of the detection channel;
and the detection probe 700 is detachably mounted on the shielding tool 600 and is positioned at the top end of the detection channel, and the detection probe 700 is connected with the data processor 500 through a data line.
Preferably, the number of the detection probes and the number of the shielding tools are three.
In this embodiment, still install sampling device 205 on the portable shielding support body 201, this sampling device 205 advances, the exit port is provided with the sample pump line respectively, sample pump line one end is connected with external material source, and the other end tieback is in the material source behind the feed passage.
In this embodiment, a shielding plate 202 fixed to the movable shielding frame 201 is disposed between the cyclic sampling device 205 and the shielding tool 600.
As shown in fig. 14 to 18, in the present embodiment, the sample pump tube mounting portion 20 includes:
a mounting base plate 21 provided with a groove 21-2 for accommodating a sample pump tube; and
a mounting cover plate 22, which is matched with the mounting bottom plate to form a closed feeding channel;
wherein, the detection channel runs through the mounting cover plate and is communicated with the feeding channel.
Preferably, the end part of the groove 21-2 is provided with a flaring 21-1 which is in the same straight line with the detection channel;
preferably, the bottom front end of the mounting base plate 21 is further provided with a projection 21-4 for facilitating extraction.
Preferably, the mounting bottom plate 21 is provided with a limiting groove 21-3 for limiting the mounting cover plate.
Preferably, the detection probe mounting part 10 is provided with a radial mounting groove 12 for mounting the sample pump tube mounting part 20, the radial length of the sample pump tube mounting part 20 is greater than the radial depth of the mounting groove 12, so that a mounting and dismounting part which is located outside the mounting groove 12 and facilitates drawing of the sample pump tube mounting part 20 is formed at the tail part of the sample pump tube mounting part 20, and the bump 21-4 is located at the mounting and dismounting part.
When the material source detection device is used, a material to be detected is conveyed through the circulating sampling device, the material to be detected enters the circulating sampling device through the feeding pipe and flows back to a material source through the sample pump pipe, when the material positioned in the sample pump pipe passes through the feeding channel at a constant speed, the radioactive material is identified by the detection probe when passing through the detection channel, the detection probe conveys signals to the data processor, the online detected signals are analyzed and processed through the data processor, a result is obtained, and the result is displayed through the display;
meanwhile, the detection device is movable, the bottom of the detection device is provided with a roller with a brake, the handle is arranged, a worker can conveniently move to a designated position through the handle to detect, and the detection device is stronger in adaptability.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A radioactive substance detection device characterized in that: comprises an on-line detector (200) including
The upper end of the movable shielding frame body (201) is provided with an installation platform;
the shielding tool (600) is placed on the mounting platform, a closed detection channel is arranged in the shielding tool, and a circulating feeding channel is arranged at the bottom of the detection channel; and
and the detection probe (700) is detachably mounted on the shielding tool (600) and is positioned at the top end of the detection channel, and the detection probe (700) is connected with the data processor (500) through a data line.
2. The radioactive substance detection apparatus according to claim 1, wherein: still install sampling device (205) that circulates on portable shielding support body (201), the business turn over of this sampling device (205), exit port are provided with the sample pump line respectively, sample pump line one end is connected with external material source, and the other end tieback is in the material source behind the feed channel.
3. The radioactive substance detection apparatus according to claim 2, wherein: and a shielding plate (202) fixed on the movable shielding frame body (201) is arranged between the cyclic sampling device (205) and the shielding tool (600).
4. The radioactive substance detection apparatus according to claim 1 or 2, wherein: the shielding tool (600) comprises
The detection probe mounting part is provided with a cavity for accommodating the detection probe;
the sample pump pipe mounting part is movably mounted at the bottom end of the detection probe mounting part; and
and the detection channel enables the center of the probe to be in linear communication with the top end of the sample pump tube.
5. The radioactive substance detection apparatus according to claim 4, wherein: the bottom end of the detection probe mounting part can also be provided with a probe collimation shielding part according to different detection samples, and the center of the collimation shielding part is provided with a detection hole which is coaxial with the detection channel.
6. The radioactive substance detection apparatus according to claim 4, wherein: sample pump line installation department bottom is provided with the detachable base for it is fixed sample pump line installation department and test probe installation department.
7. The radioactive substance detection apparatus according to claim 5 or 6, wherein: the sample pump tube mounting portion includes:
the mounting base plate is provided with a groove for accommodating a sample pump pipe; and
the mounting cover plate is matched with the mounting bottom plate to form a closed feeding channel;
wherein, the detection channel runs through the mounting cover plate and is communicated with the feeding channel.
8. The radioactive substance detection apparatus according to claim 2, wherein: the dissolution instrument (100) is connected with the circulating sampling device (205) through a pipeline, and the dissolution instrument (100) comprises
A water bath box (105) which is internally provided with a plurality of dissolution cups (112) heated by water bath, and the dissolution cups are connected with a circulating sampling device (205) through a sample pump pipe;
the number of the spin baskets is the same as that of the dissolution cups (112), an
The basket rod lifting device is provided with a plurality of rotating basket rods (110), the rotating baskets are arranged on the rotating basket rods (110) in a buckling mode and are driven to move up and down through the basket rod lifting device.
9. The radioactive substance detection apparatus according to claim 8, wherein: the device also comprises a mounting plate (300) for assisting the quick mounting of the spin basket on the basket pole of the spin basket, wherein the mounting plate (300) is detachably mounted at the upper end of the water bath tank (105);
the mounting plate (300) is provided with a plurality of rotary basket positioning blocks (400) which are the same as the dissolving-out cups (112) through bolts.
10. The radioactive substance detection apparatus according to claim 8, wherein: the basket pole lifting device comprises
A moving plate (107) which is provided with a plurality of basket rods (110) with the same number as the dissolving-out cups (112), so that the plurality of basket rods (110) move synchronously, and the bottom of each basket rod (110) is provided with a basket buckling part (111); and
and a servo motor (109) fixedly mounted on the dissolution instrument main body (101), the servo motor is connected with a lead screw (108), a slide block (106) which moves up and down through the rotation of the lead screw is mounted on the lead screw, and the slide block (106) is fixedly connected with a moving plate (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740796.4A CN113484896A (en) | 2021-07-01 | 2021-07-01 | Radioactive substance detection device |
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