CN113470862B - Irradiation device based on component mesopores - Google Patents

Irradiation device based on component mesopores Download PDF

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Publication number
CN113470862B
CN113470862B CN202110834924.1A CN202110834924A CN113470862B CN 113470862 B CN113470862 B CN 113470862B CN 202110834924 A CN202110834924 A CN 202110834924A CN 113470862 B CN113470862 B CN 113470862B
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Prior art keywords
sample
assembly
outer sleeve
irradiation
end head
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Active
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CN202110834924.1A
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CN113470862A (en
Inventor
赵文斌
汪海
林瑞霄
孙胜
杨文华
伍晓勇
蒋国富
席航
何文
黄岗
张帅
张慧
胡晓晖
徐灵杰
刘水清
康长虎
邓才玉
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Nuclear Power Institute of China
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Nuclear Power Institute of China
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • G21K5/08—Holders for targets or for other objects to be irradiated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The application discloses an irradiation device based on a component mesopore, which comprises: the device comprises an outer sleeve and a sample assembly, wherein an upper end and a lower end are respectively fixedly arranged at two ends of the outer sleeve; the sample assembly is arranged in the outer sleeve, two ends of the sample assembly are respectively connected with the upper end head and the lower end head, and a cylindrical sample to be subjected to an irradiation test is fixed in the sample assembly. The sample to be subjected to the irradiation test is fixed in the outer sleeve, and the outer sleeve is placed in the hole in the irradiation element, so that the purpose of providing an irradiation environment for the irradiation sample is achieved.

Description

Irradiation device based on component mesopores
Technical Field
The application relates to the technical field of research stack material irradiation, in particular to an irradiation device based on a component mesopore.
Background
Verification of nuclear materials by in-stack irradiation experiments is a necessary means prior to industrial application. Along with the increasing requirements of verification of novel materials, more and more novel materials need to pass through irradiation tests on the performances, and through appearance inspection and destructive inspection after irradiation, the change condition of the internal structure tissue of the materials before and after irradiation is known. However, the existing irradiation resources are difficult to meet the market demand, and more irradiation tunnels are required for verification of nuclear materials. In the test pile, the irradiation pore canal is often used as an installation position of an irradiation test device, as the materials to be irradiated are increased, more pore canals are not used for material irradiation, and meanwhile, the element mesopores are not used as irradiation resources in the present stage.
Disclosure of Invention
The application aims to solve the technical problem that no more pore channels are used for material irradiation, and aims to provide an irradiation device based on a component mesopore, so as to solve the problem of insufficient irradiation resources.
The application is realized by the following technical scheme:
an element-based aperture-in-cell irradiation apparatus comprising:
an upper end and a lower end are respectively fixedly arranged at two ends of the outer sleeve;
the sample assembly is arranged in the outer sleeve, two ends of the sample assembly are respectively connected with the upper end socket and the lower end socket, and a cylindrical sample to be subjected to an irradiation test is fixed in the sample assembly.
Specifically, one end of the upper end head, which is opposite to the outer sleeve, is set as the upper end of the irradiation device, and one end of the lower end head, which is opposite to the outer sleeve, is set as the lower end of the irradiation device;
if the number of the samples in the sample assembly is not less than 2, a plurality of the samples are coaxially arranged, and the sample assembly further comprises:
two adjacent test pieces pass through two-sided mounting, two-sided mounting includes:
a straight tube sleeved at the end of the sample;
and the axial convex edge is arranged on the outer side surface of the straight pipe and is in facial line contact with the inner side of the outer sleeve.
Specifically, the sample subassembly pass through fixed subassembly with upper end with lower end fixed connection, fixed subassembly includes single face mounting, single face mounting includes:
the first end of the straight rod is inserted into the counter bore of the upper end head/the lower end head;
the first end of the sleeve is sleeved on the sample, and the second end of the straight rod is coaxial with and fixedly connected with the second end of the sleeve;
and the axial edge is arranged on the outer side surface of the sleeve and is in facial line contact with the inner side of the outer sleeve.
Specifically, the sample assembly further comprises at least one clamping block assembly comprising:
two arc-shaped clamping blocks which can be spliced into a cylindrical structure;
the clamping block fixing piece is arranged at the middle end of the arc-shaped clamping block and applies constraint force to the arc-shaped clamping block;
the sample is arranged between the two arc-shaped clamping blocks, and the outer side surface of the clamping block fixing piece is provided with a convex rib in line contact with the inner side surface of the outer sleeve.
Preferably, the length of the arc-shaped clamping block is smaller than that of the sample, the arc-shaped clamping block is arranged at the middle end of the sample, and the inner diameter of the arc-shaped clamping block is larger than the outer diameter of the sample.
Further, the irradiation device further comprises three detection assemblies arranged in the outer sleeve, the three detection assemblies are respectively arranged at the upper section, the middle section and the lower section of the outer sleeve, and counter bores matched with the single-sided fixing piece are formed at two ends of the detection assemblies;
two ends of the detection assembly positioned at the middle section are respectively connected with two adjacent sample assemblies;
the two ends of the detection assembly positioned at the upper section are respectively connected with the sample assembly and the lower end head through the single-sided fixing piece;
and two ends of the detection assembly positioned at the lower section are respectively connected with the sample assembly and the upper end head through the single-sided fixing piece.
Specifically, the detection assembly comprises a temperature detector and a neutron detector which are arranged in series;
the temperature detector includes:
the two temperature detection boxes can be spliced into a semi-cylinder of a cylinder;
the temperature measuring element is fixedly arranged in the groove of the splicing surface of the temperature detection box;
the clamping ring is sleeved at one end of the temperature detection box and provides constraint force for the temperature detection box;
the neutron detector includes:
the neutron detection box is sealed through an adaptive neutron detection box cover;
the neutron detection sheet is fixedly arranged in the neutron detection box.
Specifically, the fixed subassembly still includes:
the support rod is arranged between the single-sided fixing piece and the lower end head, and two ends of the support rod are respectively connected with the sample assembly and the lower end head;
the elastic component is arranged between the single-sided fixing piece and the upper end head, and two ends of the elastic component are respectively connected with the sample component and the upper end head.
Preferably, the elastic assembly comprises:
the upper end of the movable rod is inserted into the counter bore in the upper end head and is fixed with the counter bore;
the lower end of the moving rod is inserted into the supporting cylinder and can slide up and down along the supporting cylinder;
the upper end of the elastic piece is fixedly connected with the upper section of the movable rod, and the lower end of the elastic piece is fixedly connected with the upper end of the supporting cylinder.
Specifically, a plurality of auxiliary ribs are arranged on the outer side of the outer sleeve along the axial direction, the auxiliary ribs are in line contact with the inner wall of the middle hole of the element, and a plurality of cooling water flow channels are formed between the auxiliary ribs and the inner wall of the middle hole of the element.
Compared with the prior art, the application has the following advantages and beneficial effects:
the sample to be subjected to the irradiation test is fixed in the outer sleeve, and the outer sleeve is placed in the hole in the irradiation element, so that the purpose of providing an irradiation environment for the irradiation sample is achieved. Meanwhile, the sample can be fixed at a specific position of the hole in the element, so that the irradiation sample can meet the requirements of parameters such as neutrons, temperature and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the application and together with the description serve to explain the principles of the application.
Fig. 1 is a schematic view of an irradiation device based on holes in a component according to the present application.
Fig. 2 is a partial view of i in fig. 1.
Fig. 3 is a partial view of ii in fig. 1.
Fig. 4 is a partial view of iii in fig. 1.
Fig. 5 is a partial view of iv of fig. 1.
Fig. 6 is a partial view of v in fig. 1.
Fig. 7 is a schematic view of the structure of the elastic assembly according to the present application.
Fig. 8 is a schematic structural view of a single-sided fixing block according to the present application.
Fig. 9 is a schematic structural view of a double-sided fastener according to the present application.
Fig. 10 is a schematic view of the structure of an arc-shaped clamping block according to the present application.
Fig. 11 is a schematic view of the structure of the lower head according to the present application.
Fig. 12 is a schematic view of the structure of the upper head according to the present application.
Fig. 13 is a schematic structural view of a temperature probe cartridge according to the present application.
Fig. 14 is a schematic view of a neutron detector according to the present application.
Fig. 15 is a schematic structural view of a tightness detection device according to the present application.
Reference numerals: the device comprises a 1-upper end socket, a 2-elastic component, a 3-neutron detector, a 4-temperature detector, a 5-sample component, a 6-arc clamping block, a 7-single-sided fixing piece, an 8-clamping block fixing piece, a 9-double-sided fixing block, a 10-outer sleeve, a 11-supporting rod, a 12-lower end socket, a 21-supporting cylinder, a 22-elastic component, a 23-moving rod, a 31-clamping ring, a 32-temperature detection box, a 33-temperature measuring element, a 41-neutron detection box, a 42-neutron detection box cover, a 101-lower end cover, a 102-cylinder, a 103-pressure detector, a 104-upper end cover and a 105-base.
Detailed Description
The present application will be described in further detail with reference to the drawings and embodiments, for the purpose of making the objects, technical solutions and advantages of the present application more apparent. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the application.
It should be further noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
Embodiments of the present application and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
An element-based aperture-in-cell irradiation apparatus comprising: the device comprises an outer sleeve 10 and a sample assembly 5, wherein an upper end head 1 and a lower end head 12 are respectively fixedly arranged at two ends of the outer sleeve 10; the sample assembly 5 is arranged in the outer sleeve 10, two ends of the sample assembly 5 are respectively connected with the upper end head 1 and the lower end head 12, and a cylindrical sample to be subjected to irradiation test is fixed in the sample assembly 5.
The outer sleeve 10 is sealed through the upper end head 1 and the lower end head 12, then a sample is arranged in the sample assembly 5, and the sample is fixed in a certain position of the outer sleeve 10 through the sample assembly 5, so that the sample to be irradiated is fixed in a certain axial position, the position of the sample in the irradiation device is ensured not to change, and the irradiation test of the sample is realized.
In use, the entire carrier is placed in the hole in the element by lifting the upper head 1.
In addition, this embodiment is intended to be inserted into the hole in the element, and thus it is necessary to ensure that the diameter of the outer sleeve 10 is not greater than the inner diameter of the hole in the element.
The sample according to this example was a cylindrical structure, and the inside thereof was solid.
And can set up many auxiliary ribs along axial outside outer tube 10, auxiliary rib and component mesopore inner wall line contact, and form many cooling water flow channels at auxiliary rib and component mesopore inner wall.
Example two
This embodiment includes the structure in the first embodiment.
The irradiation device is vertically arranged in the hole in the element, so that the upper end of the irradiation device is required to be lifted and fixed to realize the position fixing of the whole irradiation device, and therefore, the end of the upper end head 1 is set to be the upper end of the irradiation device, and the end of the lower end head 12 is set to be the lower end of the irradiation device.
Namely, the end of the upper end head 1 corresponding to the outer sleeve 10 is set as the upper end of the irradiation device, and the end of the lower end head 12 corresponding to the outer sleeve 10 is set as the lower end of the irradiation device;
if only one sample is provided in one sample block 5, waste of irradiation resources may be caused, and therefore in this embodiment, the number of samples in the sample block 5 is set to not less than 2, and a plurality of samples may be coaxially provided.
Because a plurality of sample components 5 have been set up, therefore, need connect a plurality of samples through connecting device, thereby reach the purpose of stabilizing in outer tube 10, connecting device that provides in this embodiment is two-sided mounting 9, two adjacent samples pass through two-sided mounting 9 and connect, two-sided mounting 9 include the straight tube of suit at the end of sample, two samples all insert in the straight tube when using promptly, realize connecting, and in order to avoid the sample to bump in the straight tube, can add a coaxial ring at the inside middle-end of straight tube, realize the separation of sample and sample.
In addition, an axial rib is required to be arranged on the outer side surface of the straight pipe, the axial rib is in line contact with the inner side surface of the outer sleeve 10, and the purpose of line contact is to ensure that a cavity is formed between a sample and the inner side of the outer sleeve 10 for filling inert protective gas or cooling liquid.
Example III
This embodiment is to increase the stability of the sample assembly 5 in the outer sleeve, and may be used in combination with the second embodiment and the first embodiment, or may be used in the first embodiment alone.
The sample assembly 5 is fixedly connected with the upper end head 1 and the lower end head 12 through a fixing assembly, the fixing assembly comprises a single-sided fixing piece 7, and the single-sided fixing piece 7 comprises a straight rod and a sleeve.
The first end of the straight rod is inserted into the counter bore of the upper end head 1/the lower end head 12, the first end of the sleeve is sleeved on the sample, and the second end of the straight rod is coaxial with and fixedly connected with the second end of the sleeve;
it can be seen that, in order to cooperate with the single-sided fixing element 7, it is necessary to provide counter bores for the inner end of the upper end head 1 and the lower end head 12, which are adapted to the single-sided fixing element 7, and the adaptation is achieved by the counter bores and the straight rod.
Meanwhile, in order to avoid the interference of the two single-sided fixing pieces 7 on the sample, the length of the sample is ensured to be longer than the distance between the inner ends of the two straight rods when the sample is arranged, namely the sample can move in a small range in the sleeve, so that the sample is given a space which is irradiated to generate expansion.
In addition, an axial edge needs to be arranged on the outer side surface of the sleeve, the axial edge is in line contact with the inner side surface of the outer sleeve 10, and the purpose of line contact is to ensure that a cavity is formed between the sample and the inner side of the outer sleeve 10 for filling inert protective gas or cooling liquid.
Example IV
This example further increases the stability of the sample.
The sample assembly 5 further comprises at least one clamping block assembly, wherein the clamping block assembly comprises two arc-shaped clamping blocks 6 which can be spliced into a cylindrical structure and a clamping block fixing piece 8, and the clamping block fixing piece 8 is arranged at the middle end of the arc-shaped clamping block 6 and applies constraint force to the arc-shaped clamping block 6;
an annular groove may be provided in the middle of the arc-shaped clamping block 6 for fixing the clamping block fixing member 8. The clamping block fixing piece 8 can be two semicircular rings which can be spliced to form a circular ring, and the constraint on the arc-shaped clamping block 6 is realized through the opening and closing of the two semicircular rings.
The sample is arranged between the two arc-shaped clamping blocks 6, and the outer side surface of the clamping block fixing piece 8 is provided with a convex rib in line contact with the inner side surface of the outer sleeve, so that an annular cavity is formed between the outer diameter of the arc-shaped clamping blocks 6 and the inner wall of the outer sleeve 10; the thickness of the cavity is 0.15-0.25 mm.
The length of arc clamp splice 6 is less than the length of sample, and arc clamp splice 6 sets up the middle-end at the sample, and the internal diameter of arc clamp splice 6 is greater than the external diameter of sample.
The sample and the outer sleeve are fixed through the clamping block fixing piece 8 and the arc clamping block 6, so that the stability of the sample in the outer sleeve is further improved.
On the basis of the embodiment, when the test requirement temperature is low, the thickness of the arc-shaped clamping block 6 (6) is increased, and the thickness of the annular cavity formed by the arc-shaped clamping block 6 and the outer sleeve 10 is reduced.
After the device is piled, inert gas is filled in the device, the thickness of the annular cavity is reduced, and the thickness of the gas insulation layer can be reduced, so that the temperature of a sample is reduced, and the test requirement is met.
Similarly, when the test requirement temperature is higher, the thickness of the arc-shaped clamping block 6 is reduced, and the thickness of the annular cavity formed by the arc-shaped clamping block 6 and the outer sleeve 10 is increased.
After the device is piled, inert gas is filled in the device, the thickness of the annular cavity is increased, and the thickness of the gas insulation layer can be increased, so that the temperature of a sample is increased, and the test requirement is met.
Example five
In order to detect the temperature detection and neutron fluence of the irradiation test, at least three detection components are arranged in the irradiation device, and the three detection components are arranged in the outer sleeve.
And in order to carry out better detection to whole outer tube, set up three detection component respectively in upper segment, middle section and the hypomere of outer tube.
Two ends of the detection assembly positioned at the middle section are respectively connected with two adjacent sample assemblies 5;
the two ends of the detection component positioned at the upper section are respectively connected with the sample component 5 and the lower end head 12 through the single-sided fixing piece 7;
the two ends of the detection component positioned at the lower section are respectively connected with the sample component 5 and the upper end head 1 through single-sided fixing pieces 7.
In order to better connect the detection assembly with the sample assembly 5, counter bores matched with the single-sided fixing pieces 7 are arranged at two ends of the detection assembly, so that the fixing with the sample assembly 5, the upper end head 1 and the lower end head 12 can be realized through the single-sided fixing pieces 7.
It should be noted that, in this embodiment, it is mentioned that the end connected by the single-sided fixing member 7, that is, the end corresponding to the default end is provided with a counter bore, and those skilled in the art can confirm the structure by the connection manner, and the structure of each end does not need to be described in detail.
For detecting the temperature detection and neutron fluence of the irradiation test, the detection assembly comprises a temperature detector 4 and a neutron detector 3 which are arranged in series;
the temperature detector 4 includes a temperature detection case 32, a temperature measuring element 33, and a snap ring 31.
The temperature detection box 32 is a semi-cylinder which can be spliced into a cylinder, the temperature detection box 32 is fixedly arranged in a groove of the splicing surface of the temperature detection box 32 through a clamping ring 31 fixing piece, and the clamping ring 31 is sleeved at one end of the temperature detection box 32 and provides constraint force for the temperature detection box 32;
the number of the temperature measuring elements 33 may be plural, and the temperature measuring elements 33 may be distributed on the splicing surfaces of the semi-cylinders, in this embodiment, three temperature measuring elements 33 with different melting points and different numbers of temperature measuring elements 33 may be selected according to the temperature requirement.
For example: the temperature measuring element 33 is a metal wire, and the melting points of the temperature measuring wires are different.
Also for example: the temperature measuring element 33 may also be a temperature sensor.
The neutron detector 3 comprises a neutron detection box 41 and a neutron detection sheet, wherein the neutron detection box 41 is sealed through an adaptive neutron detection box cover 42, and the neutron detection sheet is fixedly arranged in the neutron detection box 41.
The connection ends of the temperature detector 4 and the neutron detector 3 are respectively provided with counter bores or connection holes, so that the temperature detector 4 and the neutron detector 3 can be connected in series.
The outer sides of the temperature detector 4 and the neutron detector 3 are provided with edges, so that contact between the temperature detector 4 and the neutron detector 3 and the outer sleeve can be avoided without reserving gaps.
Example six
This embodiment provides a connection structure between the sample assembly 5 and the upper and lower terminals 1 and 1.
The fixing assembly further comprises a supporting rod 11 and an elastic assembly 2, the supporting rod 11 is arranged between the single-sided fixing piece 7 and the lower end 12, and two ends of the supporting rod 11 are respectively connected with the sample assembly 5 and the lower end 12; the elastic component 2 is arranged between the single-sided fixing piece 7 and the upper end 1, and two ends of the elastic component 2 are respectively connected with the sample component 5 and the upper end 1.
In order to enable the support rod 11 to be stably connected with the lower end head 12, a counter bore matched with the single-sided fixing piece 7 is arranged on the lower end head 12, and the lower end of the support rod 11 is inserted into the counter bore to realize fixation.
Likewise, in order to stably connect the elastic component 2 with the upper end 1, a counter bore matched with the single-sided fixing piece 7 is arranged on the upper end 1, and the upper end of the elastic component 2 is inserted into the counter bore to realize fixation.
In this embodiment, the elastic component 2 is provided because the sample component 5 and the sample are thermally expanded when irradiated in the stack, and displacement of the sample component 5 can be offset by providing the elastic component 2 to ensure safety of the apparatus, the elastic component 2 includes: a moving lever 23, a support cylinder 21, and an elastic member 22.
The upper end of the moving rod 23 is inserted into a counter bore in the upper end head 1 and fixed with the counter bore, the lower end of the moving rod 23 is inserted into the supporting cylinder 21 and can slide up and down along the supporting cylinder 21, the upper end of the elastic piece 22 is fixedly connected with the upper section of the moving rod 23, and the lower end of the elastic piece 22 is fixedly connected with the upper end of the supporting cylinder 21.
The upper end of the movable rod 23 is connected with a counter bore in the upper end head 1, the lower end of the support cylinder 21 is connected with the sample assembly 5, the movable rod 23 can slide up and down in the support cylinder 21, the guide function is realized through the movable rod 23 and the support cylinder 21 which are coaxially arranged, and the situation of deflection is avoided.
Meanwhile, in order to facilitate the connection of the elastic member 22, an annular plate may be fixedly disposed on the upper portion of the moving rod 23, and a compression block may be fixedly disposed on the upper end of the supporting rod 11, so that the elastic member 22 is fixedly connected between the annular plate and the compression block.
The elastic member 22 may have various structures, such as: springs, resilient metal sheets, etc.
The aperture of the supporting cylinder 21 is larger than the diameter of the moving rod 23, the compressing block is provided with a hole, the aperture is larger than the diameter of the moving rod 23 and smaller than the outer diameter of the elastic piece 22.
Example seven
Since it is necessary to secure the sealability of the irradiation device in practical use, the present embodiment provides a sealability detecting device of an irradiation device based on a hole in a member, comprising: barrel 102, pressure detector 103 and water line.
Barrel 102 is fixed on base 105, and the both ends of barrel 102 are provided with upper end cover 104 and lower end cover 101 respectively, and irradiation device sets up in barrel 102, and the water pipe is fixed to be set up on upper end cover 104 and communicate with barrel 102 inside, and pressure detector 103 is used for detecting the inside pressure of barrel 102.
The application method is as follows:
step 1: performing double nondestructive testing after the device is assembled and welded, firstly adopting a penetration testing method to test the welding line and the outer sleeve 10, and after the welding line and the outer sleeve are qualified, adopting all welding lines on a ray testing device, and then adopting the welding line on the ray testing device, wherein the welding line and the outer sleeve are qualified in the II stage;
step 2: cleaning surface stains of the device which is qualified in nondestructive detection by using alcohol and drying;
step 3: weighing the cleaned device, recording and reading, wherein the quality of the device is accurate to 0.01g;
step 4: opening a lower end cover 101 of the auxiliary tightness detection device, putting the weighed device into a cylinder 102, covering the lower end cover 101, and injecting purified water into the cylinder 102 through a water inlet pipe to slowly increase the pressure in the cylinder 102; stopping pressurizing when the pressure is increased to 2.2MPa, recording the reading of the pressure detector 103 after the pressure is stable for 5 minutes, recording the reading of the pressure detector 103 again after 30 minutes, and judging that the pressure is qualified when the difference between the current reading and the last reading is less than 0.1 MPa;
step 5: opening the lower end cover 101, taking out the device from the cylinder 102, wiping cleanly and drying;
step 6: and weighing the device subjected to the hydrostatic test again, recording the reading, and comparing the reading with the previous weighing, wherein the difference between the previous and the subsequent reading is smaller than 0.02 g.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the application. Other variations or modifications of the above-described application will be apparent to those of skill in the art, and are still within the scope of the application.

Claims (9)

1. An irradiation apparatus based on a cell-in-cell, comprising:
an upper end and a lower end are respectively fixedly arranged at two ends of the outer sleeve;
the sample assembly is arranged in the outer sleeve, two ends of the sample assembly are respectively connected with the upper end socket and the lower end socket, and a cylindrical sample to be subjected to an irradiation test is fixed in the sample assembly;
setting one end of the upper end head, which is opposite to the outer sleeve, as the upper end of the irradiation device, and setting one end of the lower end head, which is opposite to the outer sleeve, as the lower end of the irradiation device;
if the number of the samples in the sample assembly is not less than 2, a plurality of the samples are coaxially arranged, and the sample assembly further comprises: two adjacent test pieces pass through two-sided mounting, two-sided mounting includes:
a straight tube sleeved at the end of the sample;
the axial convex edge is arranged on the outer side face of the straight pipe, and the axial convex edge is in facial line contact with the inner side of the outer sleeve.
2. The cell-based irradiation apparatus of claim 1, wherein the sample assembly is fixedly connected to the upper and lower tips by a fixing assembly, the fixing assembly comprising a single-sided fixture, the single-sided fixture comprising:
the first end of the straight rod is inserted into the counter bore of the upper end head/the lower end head;
the first end of the sleeve is sleeved on the sample, and the second end of the straight rod is coaxial with and fixedly connected with the second end of the sleeve;
and the axial edge is arranged on the outer side surface of the sleeve and is in facial line contact with the inner side of the outer sleeve.
3. An element-based aperture-in-cell irradiation apparatus according to claim 1 or 2, wherein the sample assembly further comprises at least one clamp block assembly comprising:
two arc-shaped clamping blocks which can be spliced into a cylindrical structure;
the clamping block fixing piece is arranged at the middle end of the arc-shaped clamping block and applies constraint force to the arc-shaped clamping block;
the sample is arranged between the two arc-shaped clamping blocks, and the outer side surface of the clamping block fixing piece is provided with a convex rib in line contact with the inner side surface of the outer sleeve.
4. A cell-based irradiation apparatus according to claim 3, wherein the arcuate clamping blocks have a length less than the length of the sample, the arcuate clamping blocks being disposed at the middle end of the sample, the arcuate clamping blocks having an inner diameter greater than the outer diameter of the sample.
5. The irradiation device based on the element mesopores according to claim 2, further comprising three detection components arranged in the outer sleeve, wherein the three detection components are respectively arranged at the upper section, the middle section and the lower section of the outer sleeve, and two ends of the detection components are provided with counter bores matched with the single-sided fixing piece;
two ends of the detection assembly positioned at the middle section are respectively connected with two adjacent sample assemblies;
the two ends of the detection assembly positioned at the upper section are respectively connected with the sample assembly and the lower end head through the single-sided fixing piece;
and two ends of the detection assembly positioned at the lower section are respectively connected with the sample assembly and the upper end head through the single-sided fixing piece.
6. The cell-based irradiation apparatus of claim 5, wherein the detection assembly comprises a temperature detector and a neutron detector arranged in series;
the temperature detector includes:
the two temperature detection boxes can be spliced into a semi-cylinder of a cylinder;
the temperature measuring element is fixedly arranged in the groove of the splicing surface of the temperature detection box;
the clamping ring is sleeved at one end of the temperature detection box and provides constraint force for the temperature detection box;
the neutron detector includes:
the neutron detection box is sealed through an adaptive neutron detection box cover;
the neutron detection sheet is fixedly arranged in the neutron detection box.
7. The cell-based irradiation apparatus of claim 2, wherein the fixation assembly further comprises:
the support rod is arranged between the single-sided fixing piece and the lower end head, and two ends of the support rod are respectively connected with the sample assembly and the lower end head;
the elastic component is arranged between the single-sided fixing piece and the upper end head, and two ends of the elastic component are respectively connected with the sample component and the upper end head.
8. An element-based aperture-in-cell irradiation apparatus as set forth in claim 7 wherein said elastomeric assembly comprises:
the upper end of the movable rod is inserted into the counter bore in the upper end head and is fixed with the counter bore;
the lower end of the moving rod is inserted into the supporting cylinder and can slide up and down along the supporting cylinder;
the upper end of the elastic piece is fixedly connected with the upper section of the movable rod, and the lower end of the elastic piece is fixedly connected with the upper end of the supporting cylinder.
9. The irradiation device based on the element center hole according to claim 1, wherein a plurality of auxiliary ribs are axially arranged on the outer side of the outer sleeve, the auxiliary ribs are in line contact with the inner wall of the element center hole, and a plurality of cooling water flow channels are formed between the auxiliary ribs and the inner wall of the element center hole.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100878330B1 (en) * 2007-08-06 2009-01-14 한국원자력연구원 Plug type research reactor irradiation rig
CN105161149A (en) * 2015-09-15 2015-12-16 中国原子能科学研究院 FMS material irradiation container for experimental fast reactor
CN106409365A (en) * 2016-11-02 2017-02-15 中国核动力研究设计院 Independent temperature compensation type material irradiation test device and installation method thereof
CN208126881U (en) * 2018-03-15 2018-11-20 北京核二院比尼新技术有限公司 irradiation processing system
CN110853779A (en) * 2019-11-20 2020-02-28 中国核动力研究设计院 Nuclear fuel irradiation test method
CN112951473A (en) * 2021-01-26 2021-06-11 中国原子能科学研究院 Irradiation device structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100878330B1 (en) * 2007-08-06 2009-01-14 한국원자력연구원 Plug type research reactor irradiation rig
CN105161149A (en) * 2015-09-15 2015-12-16 中国原子能科学研究院 FMS material irradiation container for experimental fast reactor
CN106409365A (en) * 2016-11-02 2017-02-15 中国核动力研究设计院 Independent temperature compensation type material irradiation test device and installation method thereof
CN208126881U (en) * 2018-03-15 2018-11-20 北京核二院比尼新技术有限公司 irradiation processing system
CN110853779A (en) * 2019-11-20 2020-02-28 中国核动力研究设计院 Nuclear fuel irradiation test method
CN112951473A (en) * 2021-01-26 2021-06-11 中国原子能科学研究院 Irradiation device structure

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