CN113470862A - Irradiation device based on component mesopores - Google Patents

Irradiation device based on component mesopores Download PDF

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Publication number
CN113470862A
CN113470862A CN202110834924.1A CN202110834924A CN113470862A CN 113470862 A CN113470862 A CN 113470862A CN 202110834924 A CN202110834924 A CN 202110834924A CN 113470862 A CN113470862 A CN 113470862A
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China
Prior art keywords
sample
assembly
end head
outer sleeve
clamping block
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Granted
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CN202110834924.1A
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CN113470862B (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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  • 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)
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  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The invention discloses an irradiation device based on holes in an element, which comprises: the device comprises an outer sleeve and a sample assembly, wherein an upper end head and a lower end head are fixedly arranged at two ends of the outer sleeve respectively; the test sample assembly is arranged in the outer sleeve, two ends of the test sample assembly are respectively connected with the upper end head and the lower end head, and a cylindrical test sample to be subjected to an irradiation test is fixed in the test sample assembly. The sample to be subjected to the irradiation test is fixed in the outer sleeve, and the outer sleeve is arranged 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 invention relates to the technical field of irradiation of materials for research reactor, in particular to an irradiation device based on holes in an element.
Background
Before industrial application, nuclear materials are verified to be necessary means through in-stack irradiation tests. With the increasing requirements of new material verification, more and more new materials need to pass the performance of an irradiation test, and the change condition of the internal structure tissues of the materials before and after irradiation is known through appearance inspection and destructive inspection after irradiation. However, the existing irradiation resources are difficult to meet the market demand, and the verification of nuclear materials needs more irradiation channels. In a test pile, an irradiation pore channel is often used as a mounting position of an irradiation test device, as the number of materials to be irradiated increases, no more pore channels are used for material irradiation, and at the same time, a pore in an element is not used as an irradiation resource in the present stage.
Disclosure of Invention
The invention 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 pores in an element to solve the problem of insufficient irradiation resources.
The invention is realized by the following technical scheme:
an irradiation device based on holes in a component, comprising:
the outer sleeve is fixedly provided with an upper end head and a lower end head at two ends respectively;
the test tube comprises a sample assembly, 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.
Specifically, one end of the upper end head, which is located 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 located opposite to the outer sleeve, is set as the lower end of the irradiation device;
if in the sample subassembly the quantity of sample is for being no less than 2, and is a plurality of the coaxial setting of sample, the sample subassembly still includes:
two-sided mounting, adjacent two the sample passes through two-sided mounting is connected, two-sided mounting includes:
a straight pipe sleeved at the end of the sample;
and the axial convex edge is arranged on the outer side surface of the straight pipe, and the axial convex edge is in line contact with the inner side surface of the outer sleeve.
Specifically, the sample subassembly passes through fixed subassembly with upper end with lower end fixed connection, fixed subassembly includes the single face mounting, the 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 and fixedly connected with the second end of the sleeve;
and the axial arrises are arranged on the outer side surface of the sleeve, and the axial arrises are in surface line contact with the inner side of the outer sleeve.
Specifically, the coupon assembly further comprises at least one block assembly, the 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 a restraining force to the arc-shaped clamping block;
the test 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 which is 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 test sample, the arc-shaped clamping block is arranged at the middle end of the test sample, and the inner diameter of the arc-shaped clamping block is larger than the outer diameter of the test sample.
Furthermore, the irradiation device also 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 the two ends of each detection assembly are provided with counter bores matched with the single-sided fixing piece;
two ends of the detection assembly positioned in 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 probe includes:
the temperature detection box comprises two semi-cylinders which can be spliced into 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 a restraining force for the temperature detection box;
the neutron detector includes:
the neutron detection box is sealed by the adaptive neutron detection box cover;
and the neutron detection piece is fixedly arranged in the neutron detection box.
Specifically, the fixing assembly further includes:
the supporting rod is arranged between the single-sided fixing piece and the lower end head, and two ends of the supporting rod are respectively connected with the sample assembly and the lower end head;
and the elastic assembly is arranged between the single-sided fixing piece and the upper end head, and two ends of the elastic assembly are respectively connected with the sample assembly and the upper end head.
Preferably, the elastic member comprises:
the upper end of the moving rod is inserted into a 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 moving 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 element middle hole, and a plurality of cooling water flow channels are formed between the auxiliary ribs and the inner wall of the element middle hole.
Compared with the prior art, the invention 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 arranged 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 a hole in the element, so that the purpose of ensuring that the irradiation sample meets the parameter requirements of neutrons, temperature and the like is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a schematic view of an irradiation device based on holes in a component according to the present invention.
Fig. 2 is a view of part i of fig. 1.
Fig. 3 is a partial view of fig. 1 ii.
Fig. 4 is a partial view of iii of fig. 1.
FIG. 5 is a partial view of IV in FIG. 1.
Fig. 6 is a partial view of v in fig. 1.
Fig. 7 is a schematic view of the construction of a spring assembly according to the present invention.
Fig. 8 is a schematic structural view of a single-sided fixed block according to the present invention.
Fig. 9 is a schematic structural view of a double-sided fastener according to the present invention.
Fig. 10 is a schematic structural view of an arc-shaped clamping block according to the invention.
Fig. 11 is a schematic view of the structure of the lower tip according to the present invention.
Fig. 12 is a schematic structural view of an upper tip according to the present invention.
FIG. 13 is a schematic structural view of a temperature probe cartridge according to the present invention.
FIG. 14 is a schematic structural view of a neutron detector according to the present invention.
Fig. 15 is a schematic structural view of the sealability detection apparatus according to the present invention.
Reference numerals: 1-upper end, 2-elastic component, 3-neutron detector, 4-temperature detector, 5-sample component, 6-arc clamp block, 7-single-side fixing piece, 8-clamp block fixing piece, 9-double-side fixing piece, 10-outer sleeve, 11-supporting rod, 12-lower end, 21-supporting cylinder, 22-elastic piece, 23-moving rod, 31-snap ring, 32-temperature detection box, 33-temperature measurement element, 41-neutron detection box, 42-neutron detection box cover, 101-lower end cover, 102-barrel, 103-pressure detector, 104-upper end cover, and 105-base.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention.
It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
An irradiation device based on holes in a component, 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 fixedly arranged at two ends of the outer sleeve 10 respectively; 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 an irradiation test is fixed in the sample assembly 5.
The outer sleeve 10 is sealed through the upper end 1 and the lower end 12, then the 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 at 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 will be placed in the element's bore by lifting the upper head 1.
In addition, since this embodiment is for insertion into a hole in an element, 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 of this embodiment is a cylindrical structure, and the interior of the sample is solid.
And a plurality of auxiliary ribs may be axially disposed outside the outer sleeve 10, the auxiliary ribs are in line contact with the inner wall of the element central hole, and a plurality of cooling water flow passages are formed between the auxiliary ribs and the inner wall of the element central hole.
Example two
This embodiment includes the structure of the first embodiment.
The irradiation device is vertically arranged in the element middle hole, so that the upper end of the irradiation device needs to be hoisted and fixed to realize the position fixation of the whole irradiation device, the end where the upper end head 1 is located is set as the upper end of the irradiation device, and the end where the lower end head 12 is located is set as the lower end of the irradiation device.
Namely, setting the end of the upper end head 1 corresponding to the outer sleeve 10 as the upper end of the irradiation device, and setting the end of the lower end head 12 corresponding to the outer sleeve 10 as the lower end of the irradiation device;
since there is a possibility of wasting irradiation resources if only one sample is set in one sample module 5, the number of samples in the sample module 5 is set to not less than 2, and a plurality of samples can be coaxially set in this embodiment.
Because a plurality of sample subassemblies 5 have been set up, consequently need connect a plurality of samples through connecting device, thereby reach the purpose of outer sleeve 10 internal stability, the connecting device that provides in this embodiment is two-sided mounting 9, two adjacent samples pass through two-sided mounting 9 to be connected promptly, two-sided mounting 9 is including the straight tube of suit at the end of sample, two samples all insert to the straight tube when using promptly in, 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 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 III
In this embodiment, in order to increase the stability of the sample assembly 5 in the outer sleeve, it 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 1/lower end 12, the first end of the sleeve is sleeved on the sample, and the second end of the straight rod and the second end of the sleeve are coaxial and fixedly connected;
it can be seen that, in order to cooperate with the single-sided fixing piece 7, counterbores adapted to the single-sided fixing piece 7 need to be arranged at the inner end of the upper end head 1 and the lower end head 12, and the adaptation is realized through the counterbores and the straight rod.
Meanwhile, in order to avoid the interference of the two single-sided fixing pieces 7 on the sample, when the sample is arranged, the length of the sample is ensured to be larger than the distance between the inner ends of the two straight rods, namely, the sample can move in the sleeve in a small range, so that the sample is provided with a space which is irradiated and expanded.
In addition, an axial rib is required to be arranged on the outer side surface of the sleeve, and the axial rib is in line contact with the inner side of the outer sleeve 10, so that 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 four
This example further increases the stability of the sample.
The sample assembly 5 further comprises at least one clamping block assembly, 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 a restraining force to the arc-shaped clamping block 6;
an annular groove may be provided in the middle of the arc-shaped clamp block 6 for fixing the clamp block fixing member 8. The clamp splice mounting 8 can be two semicircular rings that can splice to be the ring, realizes the restraint to arc clamp splice 6 through the opening and shutting of 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 edge which is 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 block 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 fixing of the sample and the outer sleeve is realized through the clamping block fixing piece 8 and the arc-shaped clamping block 6, and the stability of the sample in the outer sleeve is further improved.
On the basis of the above embodiment, when the temperature required by the test is lower, the thickness of the arc-shaped clamping blocks 6(6) is increased, and the thickness of the annular cavity formed by the arc-shaped clamping blocks 6 and the outer sleeve 10 is reduced.
After the device is placed into a pile, inert gas is filled inside the pile, 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 requires higher temperature, 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 placed into a pile, inert gas is filled inside the pile, 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 and the neutron fluence of an 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 sleeve, set up three detection subassembly respectively in the upper segment of outer sleeve, middle section and hypomere.
Two ends of the detection assembly positioned in the middle section are respectively connected with two adjacent sample assemblies 5;
the two ends of the detection assembly positioned at the upper section are respectively connected with the sample assembly 5 and the lower end head 12 through a single-sided fixing piece 7;
the two ends of the detection assembly positioned at the lower section are respectively connected with the sample assembly 5 and the upper end head 1 through a single-sided fixing piece 7.
In order to connect the detection assembly with the sample assembly 5 well, counterbores matched with the single-sided fixing piece 7 are arranged at two ends of the detection assembly, so that the detection assembly can be fixed with the sample assembly 5, the upper end head 1 and the lower end head 12 through the single-sided fixing piece 7.
It should be noted that, in the embodiment, it is mentioned that the single-sided fixing element 7 is used for connection, that is, a counter bore is provided at an end corresponding to the single-sided fixing element by default, and a person skilled in the art can confirm the structure through a connection manner, and the structure of each end does not need to be described in detail.
In order to detect the temperature detection and the 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 two semicylinders which can be spliced into a cylinder, and a temperature measuring element 33 is fixedly arranged in a groove of a splicing surface of the temperature detection box 32 through a fixing part of a clamping ring 31, 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 can be multiple, and the temperature measuring elements 33 are distributed on the splicing surfaces of the semi-cylinders, in this embodiment, three temperature measuring elements are provided, and in practice, the temperature measuring elements 33 with different melting points and the temperature measuring elements 33 with different numbers can 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.
Another example is: the temperature sensing element 33 may also be a temperature sensor.
The neutron detector 3 comprises a neutron detection box 41 and neutron detection pieces, the neutron detection box 41 is sealed through a neutron detection box cover 42 which is matched with the neutron detection box, and the neutron detection pieces are fixedly arranged in the neutron detection box 41.
The connecting ends of the temperature detector 4 and the neutron detector 3 are respectively provided with a counter bore or a connecting hole, 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 the temperature detector 4, the neutron detector 3 and an outer sleeve are prevented from contacting without reserving gaps.
EXAMPLE six
This embodiment provides a connection between the sample assembly 5 and the upper and lower terminals 1 and 1.
The fixing component also comprises a support rod 11 and an elastic component 2, the support rod 11 is arranged between the single-sided fixing piece 7 and the lower end head 12, and two ends of the support rod 11 are respectively connected with the sample component 5 and the lower end head 12; the elastic component 2 is arranged between the single-sided fixing piece 7 and the upper end head 1, and two ends of the elastic component 2 are respectively connected with the sample component 5 and the upper end head 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-face 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 fixing.
Similarly, in order that the elastic component 2 can be stably connected with the upper end head 1, a counter bore matched with the single-face fixing piece 7 is arranged on the upper end head 1, and the upper end of the elastic component 2 is inserted into the counter bore to realize fixing.
In this embodiment, the elastic component 2 is provided, because the sample component 5 and the sample can expand when irradiated in the stack, and the elastic component 2 can counteract the displacement of the sample component 5 to ensure the safety of the device, and the elastic component 2 comprises: a moving rod 23, a support cylinder 21 and an elastic member 22.
The upper end of the movable rod 23 is inserted into the counter bore in the upper end head 1 and fixed with the counter bore, the lower end of the movable rod 23 is inserted into the support cylinder 21 and can slide up and down along the support cylinder 21, the upper end of the elastic part 22 is fixedly connected with the upper section of the movable rod 23, and the lower end of the elastic part 22 is fixedly connected with the upper end of the support cylinder 21.
The upper end of the moving rod 23 is connected with a counter bore in the upper end head 1, the lower end of the supporting cylinder 21 is connected with the sample assembly 5, the moving rod 23 can slide up and down in the supporting cylinder 21, the moving rod 23 and the supporting cylinder 21 which are coaxially arranged realize the guiding function, and the deviation is avoided.
Meanwhile, in order to facilitate the connection of the elastic element 22, an annular plate may be fixedly disposed on the upper portion of the moving rod 23, and a pressing block may be fixedly disposed on the upper end of the supporting rod 11, so as to fixedly connect the elastic element 22 between the annular plate and the pressing block.
The resilient member 22 can be of various configurations, such as: springs, resilient metal sheets, and the like.
The aperture of the supporting cylinder 21 is larger than the diameter of the moving rod 23, and the pressing block is provided with a hole, wherein the aperture is larger than the diameter of the moving rod 23 and smaller than the outer diameter of the elastic part 22.
EXAMPLE seven
Since it is necessary to ensure the sealing performance of the irradiation device in practical use, the present embodiment provides a sealing performance detection device for an irradiation device based on holes in a component, including: a cylinder 102, a pressure detector 103 and a water pipe.
The cylinder 102 is fixed on the base 105, an upper end cover 104 and a lower end cover 101 are respectively arranged at two ends of the cylinder 102, the irradiation device is arranged in the cylinder 102, a water pipe is fixedly arranged on the upper end cover 104 and is communicated with the inside of the cylinder 102, and the pressure detector 103 is used for detecting the pressure inside the cylinder 102.
The using method comprises the following steps:
step 1: carrying out 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, requiring that the I level is qualified, and adopting all welding lines on a ray testing device after the I level is qualified, and requiring that the II level is qualified;
step 2: cleaning surface stains of the device qualified by nondestructive testing by using alcohol and drying;
and step 3: weighing the cleaned device and recording the reading, wherein the mass of the device is accurate to 0.01 g;
and 4, step 4: opening a lower end cover 101 of the auxiliary tightness detection device, putting the weighed device into the cylinder 102, and filling purified water into the cylinder 102 through a water inlet pipe after the lower end cover 101 is closed, so that the pressure in the cylinder 102 is slowly increased; stopping pressurizing when the pressure is increased to 2.2MPa, recording the reading of the pressure detector 103 after the pressure is stabilized for 5 minutes, recording the reading of the pressure detector 103 again after 30 minutes, and determining that the pressure is qualified when the difference value of the current reading of the last two times is less than 0.1 MPa;
and 5: opening the lower end cover 101, taking the device out of the cylinder 102, wiping the device clean and drying the device;
step 6: and weighing the device after the hydrostatic test again, recording the reading, and comparing the reading with the previous weighing, wherein the difference value of the reading of the previous time and the reading of the next time is less than 0.02g, and the device is qualified.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode 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/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of description and are not intended to limit the scope of the invention. It will be apparent to those skilled in the art that other variations or modifications may be made on the above invention and still be within the scope of the invention.

Claims (10)

1. An irradiation device based on holes in a component, comprising:
the outer sleeve is fixedly provided with an upper end head and a lower end head at two ends respectively;
the test tube comprises a sample assembly, 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.
2. The irradiation device based on the hole in the element as claimed in claim 1, wherein the end of the upper end head corresponding to the outer sleeve is set as the upper end of the irradiation device, and the end of the lower end head corresponding to the outer sleeve is set as the lower end of the irradiation device;
if in the sample subassembly the quantity of sample is for being no less than 2, and is a plurality of the coaxial setting of sample, the sample subassembly still includes:
two-sided mounting, adjacent two the sample passes through two-sided mounting is connected, two-sided mounting includes:
a straight pipe sleeved at the end of the sample;
and the axial convex edge is arranged on the outer side surface of the straight pipe, and the axial convex edge is in line contact with the inner side surface of the outer sleeve.
3. The device of claim 2, wherein the sample assembly is fixedly connected to the upper header and the lower header by the fixing assembly, the fixing assembly comprising a single-sided fixing member, the single-sided fixing member 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 and fixedly connected with the second end of the sleeve;
and the axial arrises are arranged on the outer side surface of the sleeve, and the axial arrises are in surface line contact with the inner side of the outer sleeve.
4. The device of claim 1, 2 or 3, wherein the sample assembly further comprises at least one clamping block assembly, the 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 a restraining force to the arc-shaped clamping block;
the test 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 which is in line contact with the inner side surface of the outer sleeve.
5. The device of claim 4, wherein the arc-shaped clamping block has a length 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.
6. The irradiation device based on the element mesopores as claimed in claim 3, further comprising three detection assemblies arranged in the outer sleeve, wherein the three detection assemblies are respectively arranged at the upper section, the middle section and the lower section of the outer sleeve, and counterbores matched with the single-sided fixing piece are arranged at two ends of each detection assembly;
two ends of the detection assembly positioned in 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.
7. The device of claim 6, wherein the detection assembly comprises a temperature detector and a neutron detector arranged in series;
the temperature probe includes:
the temperature detection box comprises two semi-cylinders which can be spliced into 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 a restraining force for the temperature detection box;
the neutron detector includes:
the neutron detection box is sealed by the adaptive neutron detection box cover;
and the neutron detection piece is fixedly arranged in the neutron detection box.
8. The hole-based irradiation device as set forth in claim 3, wherein said fixture assembly further comprises:
the supporting rod is arranged between the single-sided fixing piece and the lower end head, and two ends of the supporting rod are respectively connected with the clamping assembly and the lower end head;
and the elastic assembly is arranged between the single-sided fixing piece and the upper end head, and two ends of the elastic assembly are respectively connected with the sample assembly and the upper end head.
9. The device of claim 8, wherein the elastic member comprises:
the upper end of the moving rod is inserted into a 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 moving rod, and the lower end of the elastic piece is fixedly connected with the upper end of the supporting cylinder.
10. The irradiation device as set forth in claim 1, wherein a plurality of auxiliary ribs are axially disposed on the outer side of the outer sleeve, the auxiliary ribs are in line contact with the inner wall of the hole in the element, and a plurality of cooling water channels are formed between the auxiliary ribs and the inner wall of the hole in the element.
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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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