CN104359790B - Sample replacing device for K boundary densimeter - Google Patents
Sample replacing device for K boundary densimeter Download PDFInfo
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- CN104359790B CN104359790B CN201410638297.4A CN201410638297A CN104359790B CN 104359790 B CN104359790 B CN 104359790B CN 201410638297 A CN201410638297 A CN 201410638297A CN 104359790 B CN104359790 B CN 104359790B
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- sample
- sample box
- guide pillar
- spring
- specimen holder
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Abstract
The invention belongs to the technical field of radioactive nondestructive analysis and particularly relates to a sample replacing device for a K boundary densimeter. The sample replacing device comprises a sample box, a sample frame and a sample replacing frame, wherein a sample tank is arranged in the sample box; two positioning pins are arranged on the outer side of the bottom of the sample box; the sample frame is of a cubic structure and is mainly composed of a positioning plate at the bottom and reversed U-shaped pressing grooves, spring guide columns and end caps on two sides; the positioning plate is provided with sample grooves; a cubic cavity is formed between the reversed U-shaped pressing grooves and the positioning plate; the spring guide columns are located in the cavity and are parallel to the positioning plate; spring ends of the spring guide columns are fixed on the end cap at one end of the cubic cavity; an end cap at one end of a stainless steel guide column is provided with a channel through which the stainless steel guide column passes; the positioning plate, the spring guide columns and the U-shaped pressing grooves are provided with grooves corresponding to the positioning pins of the sample box; and the sample replacing frame is of a cubic structure and is used for storing the sample frame. The device has the advantages that a sample can be rapidly replaced and does not easily scatter and the operation is convenient to carry out by a mechanical arm.
Description
Technical field
The invention belongs to radioactivity nondestructive analysis technical field, be specifically related to a kind of changing based on K boundary density
Sampling device.
Background technology
K boundary density meter is used for mensuration and the monitoring of technical process of spent fuel reprocessing process parameter, can survey
Uranium, the concentration of plutonium element in amount post processing flow process, to typical spentnuclear fuel post-treatment solution, (U concentration is
Certainty of measurement 50-300g/L) can reach 0.3%-0.7%.Should be it is a technical advantage that can directly measure to have and put by force
(activity reaches 10 to penetrating property13More than Bq/l) post-treatment solution, one time throughput does not produces secondary refuse.
The measurement process of K boundary density meter can be summarized simply as follows: samples-transport-measure-vary this cyclic process.
Traditional K boundary density meter mostly is scientific research model machine and prototype plant, provisioned sample box simple in construction, wherein
Absorb for K border and the sample cell of xrf analysis is separate, small volume, and by manual operations
Mode realize sampling and vary process, but owing to the measurement object of K boundary density meter is to locate after hot
, there is radiocontamination and personnel caused the risk of radioactive radiation in reason solution.When commercial Application, need
Sample box is put in the middle of densitometric sample room by thick and heavy shield with mechanical hand, if still using tradition
Free-standing sample box structure, utilize mechanical hand to be respectively put in the middle of sample room by each sample box, mechanical hand grasp
Make difficulty quite big, easily cause spentnuclear fuel post processing feed liquid to drop, cause hot cell, mechanical hand and K border close
The position severe contaminations such as degree meter.Also need mechanical hand individually to capture each sample box when having surveyed the concentration of a batch sample
Vary, be more easy to make sample topple over or be scattered.Carry out taking, changing in consideration of it, one need to be provided to be easy to mechanical hand
What sample operated varies device.
Summary of the invention
(1) goal of the invention
According to the problem existing for prior art, the invention provides that the time of varying is short, sample is difficult to unrestrained and just
Device is varied in Robot actions.
(2) technical scheme
In order to solve the problem existing for prior art, the present invention is achieved by the following technical solutions:
A kind of based on K boundary density, vary device, the measurement based on K boundary density of this device, its bag
Including sample box, specimen holder and vary frame, wherein sample box is built-in with one or more sample cell, bottom sample box
Outside diametrically on two projections are distributed as alignment pin;
Specimen holder is a cuboid structure, and it is mainly arranged by the location-plate of bottom and length direction both sides
Inverted U indent, spring guide pillar and plug composition, location-plate has one or more sample placing sample box
Product groove;Form cuboid cavity between inverted U indent and location-plate, be made up of spring and rustless steel guide pillar
Spring guide pillar is positioned at this cavity and parallel with location-plate, and wherein spring and rustless steel guide pillar are in close contact, spring
One end be fixed on the plug of cuboid cavity one end, the plug of rustless steel guide pillar one end is provided with for not
The passage that rust steel guide pillar comes in and goes out;The location with sample box is all had on location-plate, spring guide pillar and U-shaped indent
The groove that pin is corresponding;
Varying frame is a cuboid structure, is used for placing specimen holder, in the one end of the width varying frame
Side is fixed with two and pushes away post;During dress sample, first specimen holder is positioned over and varies on frame, push away post and connect with rustless steel guide pillar
Touching and promote spring-compressed, now the groove on rustless steel guide pillar, location-plate and inverted U indent coincides, can
Sample box is put into the upper sample cell of specimen holder, putting into and taking out of sample box can be carried out.Need sample box
Put into time K boundary density meter is measured, the specimen holder with sample box is taken away frame from varying, does not now have
Pushing away the thrust of post, spring is in relaxed state makes the groove on rustless steel guide pillar cannot with the alignment pin on sample box
Correspondence, sample box is fixed;When varying, the specimen holder entirety with sample box is put into and varies on frame, it is achieved
Vary.
Preferably, the cylindrically shaped or cuboid of sample box.
Preferably, specimen holder is provided with two handles being easy to Robot actions.
Preferably, in sample box, the shape of sample cell can be cuboid or cylindrical.
Preferably, vary to be provided with on two long limits of frame and be easy to the groove that specimen holder picks and places.
Preferably, sample box upper end is equipped with sealing lid.
Preferably, pushing away post described in is that ganoid rustless steel pushes away post.
(3) beneficial effect
The device that varies that the present invention provides includes containing sample box, specimen holder and varies frame three part.This varies device
When making to utilize mechanical hand to vary sample, easy to operate and solution is difficult to topple over or unrestrained, its concrete reason
For: during dress sample, first take the handle of specimen holder with gripper of manipulator and specimen holder is positioned over varies on frame, vary on frame
The post that pushes away contact with the rustless steel guide pillar on specimen holder and promote the spring-compressed contacted with rustless steel guide pillar, this
Time rustless steel guide pillar, location-plate and inverted U indent on groove coincide, sample box can be put into specimen holder
In upper sample cell, putting into of sample box can be carried out.When needing to put into sample box measurement in K boundary density meter,
Being taken away frame from varying by specimen holder with sample box, the most do not push away the thrust of post, relaxing of spring makes stainless
Groove on steel guide pillar cannot be corresponding with the alignment pin on sample box, and sample box is fixed on specimen holder;Vary
Time, the specimen holder entirety with sample box is put into and varies on frame, push away post and contact with rustless steel guide pillar and promote not
The spring-compressed that rust steel guide pillar contacts, the now groove phase on rustless steel guide pillar, location-plate and inverted U indent
Overlap, sample box can be taken out in the upper sample cell of specimen holder, it is achieved vary.
Accompanying drawing explanation
Fig. 1 is sample box schematic diagram, and wherein 1 is cuboid sample cell, and 2 is alignment pin, and 3 is cylindrical sample
Product pond;
Fig. 2 is specimen holder schematic diagram, and wherein 4 is inverted U indent, and 5 is location-plate, and 6 is rustless steel guide pillar, 7
Being handle, 9 is sample cell, and 10 is groove;
Fig. 3 is to vary frame schematic diagram, and wherein 8 is to push away post;
Fig. 4 is sample box, specimen holder and varies the rack-mounted assembling design sketch joined.
Detailed description of the invention
Below in conjunction with specific embodiment and Figure of description, the present invention is further elaborated.
Embodiment 1
A kind of based on K boundary density, vary device, this device include cylindrical sample box (such as Fig. 1),
Specimen holder (such as Fig. 2) and vary frame (such as Fig. 3), wherein sample box is built-in with a cuboid sample cell 1
With cylindrical sample cell 3, its bottom outside diametrically on two projections are distributed as alignment pin 2;
Two handles 7 being easy to Robot actions it are provided with on specimen holder;Sealing lid it is equipped with on sample box.
Specimen holder is a cuboid structure, and it is mainly by location-plate 5 and the setting of length direction both sides of bottom
Inverted U indent 4, spring guide pillar and plug composition, location-plate 5 has six samples that can place sample box
Product groove 9;Cuboid cavity is formed, by spring and rustless steel guide pillar between inverted U indent 4 and location-plate 5
The spring guide pillars of 6 compositions are positioned at this cavity and parallel with location-plate, and wherein spring and rustless steel guide pillar 6 are tight
Contact, one end of spring is fixed on the plug of cuboid cavity one end, the plug of rustless steel guide pillar 6 one end
On be provided with for rustless steel guide pillar come in and go out passage;All have on location-plate 5, spring guide pillar and U-shaped indent 4
The groove 10 corresponding with the alignment pin of sample box;
Varying frame is a cuboid structure, is used for placing specimen holder, in the one end of the width varying frame
Side is fixed with two ganoid rustless steels and pushes away post as pushing away post 8;Vary and be provided with just on two long limits of frame
In the groove that specimen holder picks and places.During dress sample, first specimen holder is positioned over and varies on frame, push away post and rustless steel guide pillar
Contacting and promote spring-compressed, now the groove on rustless steel guide pillar, location-plate and inverted U indent coincides,
Sample box can be put into the upper sample cell of specimen holder, putting into and taking out of sample box can be carried out.Need sample
Box is put into when measuring in K boundary density meter, is taken away from varying by the specimen holder with sample box, now do not have frame
Have the thrust pushing away post, spring be in relaxed state make groove on rustless steel guide pillar and the alignment pin on sample box without
Method is corresponding, and sample box is fixed;When varying, the specimen holder entirety with sample box is put into and varies on frame, as
Shown in Fig. 4, it is achieved vary.
Embodiment 2
As different from Example 1, sample box be shaped as cuboid;Sample box upper end Plastic packaging apparatus is moulded
Envelope, prevents the sample in sample box from trickling down.
Claims (7)
1. one kind is varied device based on K boundary density, it is characterised in that this device is used for K boundary density
The measurement of meter, it includes sample box, specimen holder and varies frame, and wherein sample box is built-in with one or more sample
Pond, sample box bottom outside diametrically on two projections are distributed as alignment pin;
Specimen holder is a cuboid structure, and it is mainly arranged by the location-plate of bottom and length direction both sides
Inverted U indent, spring guide pillar and plug composition, location-plate has one or more sample placing sample box
Product groove;Form cuboid cavity between inverted U indent and location-plate, be made up of spring and rustless steel guide pillar
Spring guide pillar is positioned at this cavity and parallel with location-plate, and wherein spring and rustless steel guide pillar are in close contact, spring
One end be fixed on the plug of cuboid cavity one end, the plug of rustless steel guide pillar one end is provided with for not
The passage that rust steel guide pillar comes in and goes out;The location with sample box is all had on location-plate, spring guide pillar and U-shaped indent
The groove that pin is corresponding;
Varying frame is a cuboid structure, is used for placing specimen holder, in the one end of the width varying frame
Side is fixed with two and pushes away post.
The most according to claim 1 a kind of based on K boundary density, vary device, it is characterised in that
Cylindrically shaped or the cuboid of described sample box.
The most according to claim 1 a kind of based on K boundary density, vary device, it is characterised in that
Two handles being easy to Robot actions it are provided with on described specimen holder.
The most according to claim 1 a kind of based on K boundary density, vary device, it is characterised in that
In described sample box, sample cell is shaped as cuboid or cylindrical.
The most according to claim 1 a kind of based on K boundary density, vary device, it is characterised in that
It is provided with on described two the long limits varying frame and is easy to the groove that specimen holder picks and places.
The most according to claim 1 a kind of based on K boundary density, vary device, it is characterised in that
Described sample box upper end is equipped with sealing lid.
The most according to claim 1 a kind of based on K boundary density, vary device, it is characterised in that
The described post that pushes away is that ganoid rustless steel pushes away post.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410638297.4A CN104359790B (en) | 2014-11-06 | 2014-11-06 | Sample replacing device for K boundary densimeter |
Applications Claiming Priority (1)
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CN201410638297.4A CN104359790B (en) | 2014-11-06 | 2014-11-06 | Sample replacing device for K boundary densimeter |
Publications (2)
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CN104359790A CN104359790A (en) | 2015-02-18 |
CN104359790B true CN104359790B (en) | 2017-01-11 |
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CN201410638297.4A Active CN104359790B (en) | 2014-11-06 | 2014-11-06 | Sample replacing device for K boundary densimeter |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109580423A (en) * | 2019-01-23 | 2019-04-05 | 牧风科技有限公司 | A kind of sample box varying device based on K boundary density |
CN115267880A (en) * | 2022-06-14 | 2022-11-01 | 大连海事大学 | A sample box that is used for dalwood nematode space radiation to expose |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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NL6712087A (en) * | 1967-09-02 | 1969-03-04 | ||
FR2277013A1 (en) * | 1974-07-05 | 1976-01-30 | Intertechnique Sa | IMPROVEMENTS TO SAMPLE CONVEYORS FOR MEASURING EQUIPMENT |
DE3128930A1 (en) * | 1981-07-22 | 1983-02-10 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Sample bottle changer |
LU90270B1 (en) * | 1998-08-05 | 2000-02-07 | Europ Economic Community | Sample changer for transferring radioactive samples between a hot cell and a measuring apparatus |
CN204203027U (en) * | 2014-11-06 | 2015-03-11 | 中国原子能科学研究院 | A kind ofly vary device for K boundary density meter |
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