CN107422365A - Sample automatic sampling apparatus for neutron activation - Google Patents
Sample automatic sampling apparatus for neutron activation Download PDFInfo
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- CN107422365A CN107422365A CN201710709380.XA CN201710709380A CN107422365A CN 107422365 A CN107422365 A CN 107422365A CN 201710709380 A CN201710709380 A CN 201710709380A CN 107422365 A CN107422365 A CN 107422365A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/08—Means for conveying samples received
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Abstract
The invention discloses a kind of sample automatic sampling apparatus for neutron activation, including controller, commutator, injector I, injector II, injector III, gas tank, air compressor machine, stand.Described injector I is fixedly installed on the upper strata, middle level, bottom of stand with injector III, commutator and injector II, gas tank respectively；Described injector I, injector II, injector III are connected with commutator respectively by sample conveying tube, and commutator, injector I, injector II, injector III are connected with gas tank respectively by pipeline, and gas tank is connected by pipeline with air compressor machine；Described commutator, injector I, injector II, injector III, air compressor machine are electrically connected with the controller respectively.The sample automatic sampling apparatus for neutron activation of the present invention, vibrates and noise less feature when having compact-sized, operation, can realize batch samples orderly auto injection under program, and the stability and security of plant running are good.
Description
Technical field
The invention belongs to neutron activation sample transfer technology and radio isotope preparing technical field, and in particular to a kind of
Sample automatic sampling apparatus for neutron activation.
Background technology
Neutron activation analysis extensively should in scientific research fields such as life science, environmentology, geology, materialogy, archaeology
One kind using the thermal neutron activated of reactor and uses gamma ray spectrometer than more efficient and sensitive trace element analysis method for measuring
Deng kernel analysis instrument to specifying nucleic to carry out quantification and qualification in sample.For the activated sample containing long lived nuclides,
It is the same with most of target piece for radio isotope production, manual method can be used the sample box after irradiation from reaction
Taken out in heap irradiation channel, be put into pig and be transferred to appointed place progress sample treatment or measurement, but this radiation mode is general
Need to fill under shutdown state, take sample, and tend not to accurately control exposure time and irradiation dose.And for
Half-life period only has minute the magnitude even sample of second-time, in particular for accurately defining exposure time and/or neutron fluence
Testing sample, then need between sample introduction irradiator, measurement between establish online sample quick transmission devices, to improve sample
The transport efficacy of product, ensure that the target species in the radiation parameter and sample of accurate control sample can be measured effectively.Mesh
Before, online irradiation sample quick transmission devices are Pneumatic transmission equipment, " rabbit " are commonly called as, using malleation or negative pressure side
Formula drives sample box to be transmitted between each workspace, and the transmission speed of sample box is adjusted by the air pressure level difference of pipe ends, and one
As be not less than 10m/s.Sample automatic sampling apparatus is one of core composition of rabbit.
China is since the 1970s, China Engineering Physics Research Institute and China Atomic Energy Science Research Institute etc.,
Easy rabbit is built on its reactor, used injector is generally air-cylinder type structure, using artificial method
Sample box is put into injector and is sent into reactor irradiation one by one, i.e., sample box is manually put into the injection port of double injector,
Then sample box is pushed away into the outlet in injector manually, opening valve is passed through compressed air and sample box is sent into reactor irradiation
In pipe, the sample box for completing irradiation is transferred between measurement or handled between sample preparation again, and operates be required for staff each time
Field conduct is waited between sample preparation.Although it is domestic at present rabbit overall structure and function had larger improvement,
But the mode of sample introduction still mainly uses manual mode, it generally there are that automaticity is relatively low, labor intensity is big and staff
Vibration and noise nuisance when execute-in-place is run by injector is high, and prior art is difficult to meet supermatic sample
Product transmitting device for large batch of multiple types sample, particularly a variety of radiation parameters and second-time short-lived nuclide it is online from
Automatic sampling requirement that is dynamic, fast and accurately irradiating and measure.And can realize under program multiple samples successively or
The sample automatic sampling apparatus of selective more efficient, the safer neutron activation automatically into reactor irradiation is there is not yet open
Report.
The content of the invention
In order to overcome automaticity existing for sampling device of the prior art is relatively low, staff's execute-in-place by
Vibration and noise nuisance when injector is run are high and labor intensity is big, is difficult to meet supermatic sample transfer means pair
In online automatic, quick, accurate of large batch of multiple types sample, particularly a variety of radiation parameters and second-time short-lived nuclide
Irradiation and the automatic sampling requirement of measurement deficiency, the present invention provides a kind of sample auto injection dress for neutron activation
Put.
Realize that technical scheme is as follows：
The sample automatic sampling apparatus for neutron activation of the present invention, is characterized in, the described sample for neutron activation
Automatic sampling apparatus includes controller, commutator, injector I, injector II, injector III, gas tank, air compressor machine, stand, and it connects
The relation of connecing is that described injector I is fixedly installed on the upper of stand respectively with injector III, commutator and injector II, gas tank
Layer, middle level, bottom；Described injector I, injector II, injector III are connected with commutator respectively by sample conveying tube, are commutated
Device, injector I, injector II, injector III are connected with gas tank respectively by pipeline, and gas tank is connected by pipeline with air compressor machine；
Described commutator, injector I, injector II, injector III, air compressor machine are electrically connected with the controller respectively.
Described commutator includes motor, circle cylinder, load sampler, leading screw；Wherein, circle cylinder is horizontally arranged at a support
On, the profile of load sampler is cylinder；Described motor is fixedly connected with the side of circle cylinder X axis, and load sampler, leading screw are placed in
In circle cylinder, one end of leading screw is slidably connected by the wall of bearing and circle cylinder, and the other end of leading screw passes circle cylinder and motor
Axle be fixedly connected, leading screw through load sampler center and be slidably connected with load sampler, the center of circle line of load sampler, the axle center of leading screw
Line overlaps setting with the X-axis heart line of circle cylinder.
Sensor I, sensor II are correspondingly fixedly installed on two side in described circle cylinder, in leading screw both sides cylinder
The chute of two waveforms, the movement for load sampler are correspondingly fixedly installed on the arc inner wall of cylinder；In load sampler along chute
Several flanges, the tee tube connected with circle cylinder is provided with course, flange is symmetricly set on cylinder one by one with tee tube
The both sides of cylinder, wherein, flange I and tee tube I, flange II and tee tube II, flange III and tee tube III, flange IV and tee tube
IV is correspondingly arranged respectively, and flange I, flange II are separately positioned on the top of circle cylinder, and flange III, flange IV are separately positioned on cylinder
The both sides of cylinder, there is an angle between the vertical axis line of adjacent two flanges；Two branch pipes of tee tube are provided with an electromagnetism
Valve, a branch pipe therein are connected by pipeline with gas tank；It is fixedly installed on the pipeline that each flange is connected with circle cylinder
One photoelectric sensor, wherein, flange I and photoelectric sensor I, flange II and photoelectric sensor II, flange III and photoelectric sensing
Device III, flange IV and photoelectric sensor IV are arranged in pairs respectively；Described flange I and injector I, flange II and injector II,
Flange III is connected respectively with injector III by sample conveying tube, and flange IV passes through the external irradiator of sample conveying tube.
Load sample storehouse is provided with described load sampler, toroidal cavity is respectively arranged with the top of load sampler, bottom,
Sealing ring I, sealing ring II are respectively arranged with groove, sealing ring I, sealing ring II slide with circle cylinder inner surface air-tightness respectively
Connection；Two boss are symmetrically fixedly installed on the excircle in the middle part of load sampler, boss is connected with slide；In load sampler
Center of circle line on be provided with tapped through hole, leading screw passes through tapped through hole, and tapped through hole is equipped with leading screw；At the bottom in load sample storehouse
Portion is provided with cushion pad, and sample box is placed in load sample storehouse.
Described injector I includes cylinder, piston, stored one kind of tubes, sample feeding pipe；Described cylinder, piston, sample feeding pipe water successively
Flat to set, cylinder, sample feeding pipe are fixedly installed on same level table top；Stored one kind of tubes and vertical connection above and below sample feeding pipe, cylinder
Push rod is fixedly connected with one end of piston, and the other end of piston is arranged in sample feeding pipe and is slidably connected with sample feeding pipe, in piston
The tracheae of L-shaped is inside provided through, a magnetic valve is provided with tracheae, tracheae is connected by pipeline with gas tank；In sample storage
The top of pipe is provided with the lid of threaded connection, and sample box is placed in stored one kind of tubes；In the port for the sample feeding pipe being connected with piston
Sensor III is fixedly installed, the other end of sample feeding pipe is connected by sample conveying tube with flange I；Described cylinder is by being provided with electricity
The pipeline of magnet valve is connected with gas tank.
Described motor, sensor I, sensor II, sensor III, photoelectric sensor I, photoelectric sensor II, photoelectric sensor
IIIth, photoelectric sensor IV, magnetic valve are respectively electrically connected with the controller.
Described injector II, injector III are identical with the structure of injector I.
It is provided with four to eight flanges on described circle cylinder, the angle model between the vertical axis line of adjacent two flanges
Angular region is enclosed for 45 ° ~ 90 °.
Axle, circle cylinder, load sampler, leading screw, the X-axis heart line of tapped through hole of described motor are set to overlap.
Described flange is to overlap setting with the vertical axis line for the tee tube being correspondingly arranged.
Described boss is equipped with chute；The external diameter of described load sampler and the minor diameter fit of circle cylinder are set；Institute
Major diameter fit of the load sample storehouse, flange, stored one kind of tubes, sample feeding pipe, the internal diameter of sample conveying tube stated with sample box is set.
The center of circle line square crossing of the line of centres and load sampler of described symmetrically arranged two boss is set.
Described circle cylinder, load sampler, chute, the material of boss use stainless steel.
The brief operation principle of the sample automatic sampling apparatus for neutron activation of the present invention is：Manually will in the present invention
Sample box to be shone is numbered and is sequentially placed into the stored one kind of tubes of injector I, covers tightly lid, is opened controller and is set related operation ginseng
After number, cylinder promotes piston that sample box is pushed into the port of export of sample feeding pipe, while opens the magnetic valve on tracheae and tee tube I is straight
Sample box is sent into load sampler by the magnetic valve led on big gas branch pipe, compressed air through sample conveying tube and flange I；Motor passes through leading screw
Driving load sampler be parked under the guiding of chute at flange IV, while open tee tube IV connect gas tank branch pipe on magnetic valve and
Sample box is sent into irradiator through flange IV and sample conveying tube and irradiated by the magnetic valve on external irradiator, compressed air.Together
Reason, load sampler is driven precisely to pinpoint stop by switching associated solenoid valve and motor in order, it is possible to achieve injector II and sample introduction
Sample box in device III is irradiated into irradiator in order.
The sample automatic sampling apparatus use for neutron activation of the present invention can deposit three of a large amount of sample boxs and enter
The combination of sample device and a commutator, the larger automaticity for improving batch samples and entering heap irradiation, alleviates work people
Member labor intensity greatly and execute-in-place harm, be more beneficial for large batch of multiple types sample, a variety of radiation parameters and be particularly
Second-time short-lived nuclide online irradiate with measurement it is automatic, rapidly, continuously, the requirement of accurate sample introduction.The present invention's is used for
Compact-sized, the safety and environmental protection of the sample automatic sampling apparatus of son activation, suitable for the continuous orderly sample introduction of batch samples, more has
Beneficial to the neutron activation sample efficiency of irradiation and analysis test online is improved, the stability and security of plant running are good.
Brief description of the drawings
Fig. 1 is the general structure block diagram of the sample automatic sampling apparatus for neutron activation of the present invention；
Fig. 2 is the general structure schematic diagram of the commutator in the present invention；
Fig. 3 is the overlooking the structure diagram of the commutator in the present invention；
Fig. 4 is the A-A sectional views in Fig. 2；
Fig. 5 is the structural representation of the injector in the present invention；
In figure, 1. controller, 2. commutator, 3. injector, I 4. injector, II 5. injector, III 6. gas tank 7. is empty
The sensor of 13. sensor of press 8. motor, 9. circle cylinder, 10. load sampler, 11. leading screw, 12. chute I 14.
The method of II 15. boss, 16. sealing ring, I 17. sealing ring, II 18. cushion pad, 19. flange, I 20. tee tube I 21.
The photoelectricity of IV 26. tee tube of blue II 22. tee tube, II 23. flange, III 24. tee tube, III 25. flange IV 27.
The piston of IV 31. cylinder of sensor I 28. photoelectric sensor, II 29. photoelectric sensor, III 30. photoelectric sensor 32.
33. the sensor III of 36. lid of stored one kind of tubes 34. sample feeding pipe, 35. tracheae 37..
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment 1
Fig. 1 is the general structure block diagram of the sample automatic sampling apparatus for neutron activation of the present invention, and Fig. 2 is in the present invention
The general structure schematic diagram of commutator, Fig. 3 are the overlooking the structure diagram of the commutator in the present invention, and Fig. 4 is the A-A in Fig. 2
Sectional view, Fig. 5 are the structural representation of the injector in the present invention.In Fig. 1 ~ Fig. 5, the sample for neutron activation of the invention
Product automatic sampling apparatus, including controller 1, commutator 2, injector I 3, injector II 4, injector III 5, gas tank 6, air compressor machine
7th, stand, its annexation are that described injector I 3 and injector III 5, commutator 2 and injector II 4, gas tank 6 are solid respectively
Surely the upper strata, middle level, bottom of stand are arranged at；Described injector I 3, injector II 4, injector III 5 are distinguished by sample conveying tube
It is connected with commutator 2, commutator 2, injector I 3, injector II 4, injector III 5 are connected with gas tank 6 respectively by pipeline, gas
Tank 6 is connected by pipeline with air compressor machine 7；Described commutator 2, injector I 3, injector II 4, injector III 5, air compressor machine 7 divide
Do not electrically connected with controller 1.As shown in Figure 1.
Described commutator 2 includes motor 8, circle cylinder 9, load sampler 10, leading screw 11；Wherein, circle cylinder 9 is horizontally arranged at
On one support, the profile of load sampler 10 is cylinder；Described motor 8 is fixedly connected with the side of circle cylinder 9X axial directions, load sample
Device 10, leading screw 11 are placed in circle cylinder 9, and one end of leading screw 11 is slidably connected by the wall of bearing and circle cylinder 9, leading screw 11 it is another
One end passes circle cylinder 9 and is fixedly connected with the axle of motor 8, and leading screw 11 slides company through the center of load sampler 10 and with load sampler 10
Connect, the center of circle line of load sampler 10, the axial line of leading screw 11 overlap setting with the X-axis heart line of circle cylinder 9；
Sensor I 13, sensor II 14 are correspondingly fixedly installed on two side in described circle cylinder 9, in the both sides of leading screw 11
The chute 12 of two waveforms, the movement for load sampler 10 are correspondingly fixedly installed on the arc inner wall of circle cylinder 9；In load sampler
10 are provided with several flanges, the tee tube connected with circle cylinder 9 along in the course of chute 12, a pair of flange and tee tube 1
Claim to be arranged on the both sides of circle cylinder 9, wherein, flange I 19 and tee tube I 20, flange II 21 and tee tube II 22, flange III 23 with
Tee tube III 24, flange IV 25 and tee tube IV 26 are correspondingly arranged respectively, and flange I 19, flange II 21 are separately positioned on circle cylinder 9
Top, flange III 23, flange IV 25 are separately positioned on the both sides of circle cylinder 9, between the vertical axis line of adjacent two flanges
There is an angle；Two branch pipes of tee tube are provided with a magnetic valve, and a branch pipe therein is connected by pipeline with gas tank 6；
A photoelectric sensor is fixedly installed on the pipeline that each flange is connected with circle cylinder 9, wherein, flange I 19 and photoelectric transfer
Sensor I 27, flange II 21 and photoelectric sensor II 28, flange III 23 and photoelectric sensor III 29, flange IV 25 and photoelectric sensing
Device IV 30 is arranged in pairs respectively；Described flange I 19 and injector I 3, flange II 21 and injector II 4, flange III 23 and sample introduction
Device III 5 is connected respectively by sample conveying tube, and flange IV 25 passes through the external irradiator of sample conveying tube；
Load sample storehouse is provided with described load sampler 10, toroidal cavity is respectively arranged with the top of load sampler 10, bottom,
Be respectively arranged with sealing ring I 16, sealing ring II 17 in groove, sealing ring I 16, sealing ring II 17 respectively with circle cylinder (9) interior table
Face air-tightness is slidably connected；Two boss 15 are symmetrically fixedly installed on the excircle at the middle part of load sampler 10, boss 15 is with sliding
Groove 12 is slidably connected；Be provided with tapped through hole on the center of circle line of load sampler 10, leading screw 11 passes through tapped through hole, tapped through hole with
Leading screw 11 is equipped with；Cushion pad 18 is provided with the bottom in load sample storehouse, sample box is placed in load sample storehouse.Such as Fig. 2~Fig. 4 institutes
Show.
Described injector I 3 includes cylinder 31, piston 32, stored one kind of tubes 33, sample feeding pipe 34；Described cylinder 31, piston
32nd, sample feeding pipe 34 is horizontally disposed with successively, and cylinder 31, sample feeding pipe 34 are fixedly installed on same level table top；Stored one kind of tubes 33 is with entering
Sample pipe vertical connection about 34, the push rod of cylinder 31 are fixedly connected with one end of piston 32, the other end of piston 32 be arranged on into
It is slidably connected in sample pipe 34 and with sample feeding pipe 34, the tracheae 35 of L-shaped is provided through in piston 32, is provided with tracheae 35
One magnetic valve, tracheae 35 are connected by pipeline with gas tank 6；The lid 36 of threaded connection is provided with the top of stored one kind of tubes 33,
Sample box is placed in stored one kind of tubes 33；Sensor III 37 is fixedly installed in the port for the sample feeding pipe 34 being connected with piston 32, is entered
The other end of sample pipe 34 is connected by sample conveying tube with flange I 19；Described cylinder 31 is by being provided with the pipeline and gas of magnetic valve
Tank 6 connects.As shown in Figure 5.
Described motor 8, sensor I 13, sensor II 14, sensor III 37, photoelectric sensor I 27, photoelectric sensor II 28,
Photoelectric sensor III 29, photoelectric sensor IV 30, magnetic valve respectively electrically connect with controller 1；Described injector II 4, enter
The structure of sample device III 5 is identical with the structure of injector I 3；Four to eight flanges are provided with described circle cylinder 9, it is adjacent
Angular range angular region between the vertical axis line of two flanges is 45 ° ~ 90 °；The axle of described motor 8, circle cylinder 9, load sample
Device 10, leading screw 11, the X-axis heart line of tapped through hole are set to overlap；The vertical axis of described flange and the tee tube being correspondingly arranged
Line is set to overlap；Described boss 15 is equipped with chute 12；The external diameter of described load sampler 10 and the internal diameter of circle cylinder 9
It is equipped with；Major diameter fit of the described load sample storehouse, flange, stored one kind of tubes 33, sample feeding pipe 34, the internal diameter of sample conveying tube with sample box
Set；The center of circle line square crossing of the line of centres of described symmetrically arranged two boss 15 and load sampler 10 is set；It is described
Circle cylinder 9, load sampler 10, chute 12, the material of boss 15 use stainless steel.As shown in Fig. 1 ~ Fig. 5.
The workflow of the present invention is as follows：Manually sample box to be shone is numbered and is sequentially placed into the stored one kind of tubes 33 of injector I 3
It is interior, lid 36 is covered tightly, controller 1 is opened and is run after relevant parameter is set, opens the electromagnetism on the connection pipeline of gas tank 6 of cylinder 31
Valve, the push rod of cylinder 31 promotes piston 32 that sample box is pushed into the port of export of sample feeding pipe 34, then opens the electricity on tracheae 35 simultaneously
Sample box is sent into and carried by the magnetic valve that magnet valve and tee tube I 20 are led directly on big gas branch pipe, compressed air through sample conveying tube and flange I 19
In sample device 10, above-mentioned magnetic valve is closed, cylinder 31 pulls the return of piston 32 to prepare to push next sample box；Controller 1 refers to again
Make motor 8 run, the leading to travel downwardly and be parked at flange IV 25 in chute 12 of load sampler 10 is driven by leading screw 11, opened simultaneously
The magnetic valve that tee tube IV 26 is connected on the branch pipe of gas tank 6 connects the magnetic valve in atmosphere duct with external irradiator, and compression is empty
Sample box is sent into irradiator by gas through flange IV 25 and sample conveying tube, closes associated batteries valve, and sample box carries out spoke in reactor
According to.Similarly, load sampler 10 is driven in flange II 21, flange III 23, flange IV 25 by switching associated solenoid valve and motor 8 in order
The accurate stop at place, it is possible to achieve the sample box in injector II 4, injector III 5 is irradiated into irradiator in order.
The sample automatic sampling apparatus for neutron activation of the present invention, using PLC programming Controls, can be automatically performed into
All samples box in sample device I 3, injector II 4 and injector III 5 is irradiated into irradiator in order, also can be as needed
Crawl operational mode is set, the above-mentioned action of manual control is completed one by one.
The sample automatic sampling apparatus for neutron activation of the present invention, load sampler 10, flange, stored one kind of tubes 33, sample feeding pipe
34 and the internal diameter of sample conveying tube set with the major diameter fit of sample box, both ensured sample box by smooth, and made sample box again in phase
With there is faster movement velocity under pressure difference.
The sample automatic sampling apparatus for neutron activation of the present invention, passes through the photoelectric sensor being arranged on below flange
Supervise the situation of sample box；By be arranged on the sensor I 13 of the intracavitary of circle cylinder 9, sensor II 14 and be arranged on into
The sensor III 37 of the port of sample pipe 34 limits load sampler 10, the range of piston 32 respectively.
In the present embodiment, commutator 2 is provided with four flanges, can enter three be respectively connected with wherein three flanges
Sample box in sample device is sent in the irradiator being connected with the 4th flange and irradiated, the vertical axis of adjacent two flanges
Angle between line is 90 °；The chute of two waveforms is correspondingly arranged in circular arc wall in circle cylinder 9, chute 12 is wherein
One；Two boss are symmetrically arranged with load sampler 2, boss 15 is one of those；Pass through the guiding of two chutes, motor
8 can drive load sampler 10 alternately to wave traveling along X axis of circle cylinder 9 or so, can make load sampler 10 in flange I 19, flange II
21st, moved in flange III 23, flange IV 25 between any two flange and precisely rest in specified flange loading, unloading sample box.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, except that being provided with five flanges and connection four on circle cylinder 9
Individual injector, the angle between the vertical axis line of adjacent two flanges is 45 °, can be sent to more sample boxs external
Irradiated in irradiator.
Embodiment 3
The present embodiment is identical with the structure of embodiment 1, except that being provided with six flanges and connection five on circle cylinder 9
Individual injector, more sample boxs can be sent in external irradiator and be irradiated.
Embodiment 4
The present embodiment is identical with the structure of embodiment 1, except that being provided with seven flanges and connection six on circle cylinder 9
Individual injector, more sample boxs can be sent in external irradiator and be irradiated.
Embodiment 5
The present embodiment is identical with the structure of embodiment 1, except that being provided with eight flanges and connection seven on circle cylinder 9
Individual injector, more sample boxs can be sent in external irradiator and be irradiated.
Claims (10)
1. a kind of sample automatic sampling apparatus for neutron activation, it is characterized in that：The described sample for neutron activation is certainly
Dynamic sampling device include controller (1), commutator (2), injector I (3), injector II (4), injector III (5), gas tank (6),
Air compressor machine (7), stand, its annexation are described injector I (3) and injector III (5), commutator (2) and injector II
(4), gas tank (6) is fixedly installed on the upper strata, middle level, bottom of stand respectively；Described injector I (3), injector II (4), enter
Sample device III (5) is connected with commutator (2) respectively by sample conveying tube, commutator (2), injector I (3), injector II (4), sample introduction
Device III (5) is connected with gas tank (6) respectively by pipeline, and gas tank (6) is connected by pipeline with air compressor machine (7)；Described commutator
(2), injector I (3), injector II (4), injector III (5), air compressor machine (7) electrically connect with controller (1) respectively.
2. the sample automatic sampling apparatus according to claim 1 for neutron activation, it is characterized in that：Described commutator
(2) motor (8), circle cylinder (9), load sampler (10), leading screw (11) are included；Wherein, circle cylinder (9) is horizontally arranged at a support
On, the profile of load sampler (10) is cylinder；Described motor (8) is fixedly connected with the side of circle cylinder (9) X axis, load sample
Device (10), leading screw (11) are placed in circle cylinder (9), and one end of leading screw (11) is slidably connected by the wall of bearing and circle cylinder (9),
The other end of leading screw (11) passes circle cylinder (9) and is fixedly connected with the axle of motor (8), and leading screw (11) runs through in load sampler (10)
Entreat and be slidably connected with load sampler (10), the X of the center of circle line of load sampler (10), the axial line of leading screw (11) with circle cylinder (9)
Axial line, which overlaps, to be set；
Sensor I (13), sensor II (14) are correspondingly fixedly installed on two side in described circle cylinder (9), in leading screw
(11) chute (12) of two waveforms is correspondingly fixedly installed on the arc inner wall of both sides circle cylinder (9), for load sampler (10)
Movement；The several flanges connected with circle cylinder (9), three troubles are provided with course of the load sampler (10) along chute (12)
Pipe, flange are symmetricly set on the both sides of circle cylinder (9) with tee tube one by one, wherein, flange I (19) and tee tube I (20), flange
II (21) and tee tube II (22), flange III (23) and tee tube III (24), flange IV (25) and tee tube IV (26) are right respectively
It should set, flange I (19), flange II (21) are separately positioned on the top of circle cylinder (9), flange III (23), flange IV (25) point
The both sides of circle cylinder (9) are not arranged on, have an angle between the vertical axis line of adjacent two flanges；Two branch pipes of tee tube are equal
A magnetic valve is provided with, a branch pipe therein is connected by pipeline with gas tank (6)；It is connected in each flange with circle cylinder (9)
Pipeline on be fixedly installed a photoelectric sensor, wherein, flange I (19) and photoelectric sensor I (27), flange II (21)
With photoelectric sensor II (28), flange III (23) and photoelectric sensor III (29), flange IV (25) and photoelectric sensor IV (30)
It is arranged in pairs respectively；Described flange I (19) and injector I (3), flange II (21) and injector II (4), flange III (23) with
Injector III (5) is connected respectively by sample conveying tube, and flange IV (25) passes through the external irradiator of sample conveying tube；
Load sample storehouse is provided with described load sampler (10), at the top of load sampler (10), that bottom is respectively arranged with annular is recessed
Groove, is respectively arranged with sealing ring I (16), sealing ring II (17) in groove, sealing ring I (16), sealing ring II (17) respectively with
Circle cylinder (9) inner surface air-tightness is slidably connected；Symmetrically be fixedly installed on the excircle in the middle part of load sampler (10) two it is convex
Platform (15), boss (15) are slidably connected with chute (12)；Tapped through hole, leading screw are provided with the center of circle line of load sampler (10)
(11) tapped through hole is passed through, tapped through hole is equipped with leading screw (11)；Cushion pad (18), sample are provided with the bottom in load sample storehouse
Product box is placed in load sample storehouse.
3. the sample automatic sampling apparatus according to claim 1 for neutron activation, it is characterized in that：Described injector
I (3) include cylinder (31), piston (32), stored one kind of tubes (33), sample feeding pipe (34)；Described cylinder (31), piston (32), sample introduction
Pipe (34) is horizontally disposed with successively, and cylinder (31), sample feeding pipe (34) are fixedly installed on same level table top；Stored one kind of tubes (33) is with entering
Vertical connection, the push rod of cylinder (31) are fixedly connected sample pipe (34) with one end of piston (32) up and down, the other end of piston (32)
It is arranged in sample feeding pipe (34) and is slidably connected with sample feeding pipe (34), the tracheae (35) of L-shaped is provided through in piston (32),
A magnetic valve is provided with tracheae (35), tracheae (35) is connected by pipeline with gas tank (6)；On the top of stored one kind of tubes (33)
The lid (36) of threaded connection is provided with, sample box is placed in stored one kind of tubes (33)；In the sample feeding pipe being connected with piston (32)
(34) port is fixedly installed sensor III (37), and the other end of sample feeding pipe (34) is connected by sample conveying tube with flange I (19)；
Described cylinder (31) is connected by being provided with the pipeline of magnetic valve with gas tank (6).
4. according to any described sample automatic sampling apparatus for neutron activation in claim 1,2,3, it is characterized in that：Institute
Motor (8), sensor I (13), sensor II (14), sensor III (37), photoelectric sensor I (27), the photoelectric sensor stated
II (28), photoelectric sensor III (29), photoelectric sensor IV (30), magnetic valve respectively electrically connect with controller (1).
5. the sample automatic sampling apparatus for neutron activation according to claim 1 or 3, it is characterized in that：Described enters
Sample device II (4), injector III (5) are identical with the structure of injector I (3).
6. the sample automatic sampling apparatus for neutron activation according to claim 1, it is characterized in that：Described cylinder
Be provided with four to eight flanges on cylinder (9), the angular range angular region between the vertical axis line of adjacent two flanges for 45 ° ~
90°。
7. the sample automatic sampling apparatus according to claim 1 or 2 for neutron activation, it is characterized in that：Described electricity
Axle, circle cylinder (9), load sampler (10), leading screw (11), the X-axis heart line of tapped through hole of machine (8) are set to overlap；Described method
The blue vertical axis line with the tee tube being correspondingly arranged is to overlap setting.
8. the sample automatic sampling apparatus according to claim 1 for neutron activation, it is characterized in that：Described boss
(15) it is equipped with chute (12)；The external diameter of described load sampler (10) is set with the minor diameter fit of circle cylinder (9)；Described
The major diameter fit of load sample storehouse, flange, stored one kind of tubes (33), sample feeding pipe (34), the internal diameter of sample conveying tube with sample box is set.
9. the sample automatic sampling apparatus for neutron activation according to claim 1, it is characterized in that：Described is symmetrical
The center of circle line square crossing of the line of centres of two boss (15) set and load sampler (10) is set.
10. the sample automatic sampling apparatus for neutron activation according to claim 2, it is characterized in that：Described circle
Cylinder cylinder (9), load sampler (10), chute (12), the material of boss (15) use stainless steel.
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