阅读说明：本技术 一种用于原位加载衍射实验的高温辐射加热设备 (High-temperature radiation heating equipment for in-situ loading diffraction experiment ) 是由 詹霞 高建波 马艳玲 张书彦 贡志峰 王晨 于 2020-06-16 设计创作，主要内容包括：本发明公开了一种用于原位加载衍射实验的高温辐射加热设备,包括上连接件、上加热单元、下加热单元以及下连接件,上连接件固定于上加热单元顶部,下连接件固定于下加热单元底部,上加热单元与下加热单元结构相同并相互固定,上加热单元包括壳体、加热组件以及安装件,安装件固定于壳体,安装件设有滑槽及两与滑槽连通的定位孔,加热组件包括反射罩、卤素灯管及挂耳,卤素灯管安装于反射罩内,挂耳固定于反射罩外部,挂耳伸入滑槽并收容于一定位孔使加热组件安装于壳体,此时反射罩开口朝内,当挂耳沿滑槽滑动并收容于另一定位孔时,反射罩开口朝外便于卤素灯管更换,翻转式反射罩结构较大地拓宽了卤素灯管更换的操作空间,节省时间和实验成本。(The invention discloses high-temperature radiation heating equipment for in-situ loading diffraction experiments, which comprises an upper connecting piece, an upper heating unit, a lower heating unit and a lower connecting piece, wherein the upper connecting piece is fixed at the top of the upper heating unit, the lower connecting piece is fixed at the bottom of the lower heating unit, the upper heating unit and the lower heating unit are of the same structure and are mutually fixed, the upper heating unit comprises a shell, a heating assembly and an installation piece, the installation piece is fixed on the shell, the installation piece is provided with a chute and two positioning holes communicated with the chute, the heating assembly comprises a reflecting cover, a halogen lamp tube and a hanging lug, the halogen lamp tube is arranged in the reflecting cover, the hanging lug is fixed outside the reflecting cover, the hanging lug extends into the chute and is accommodated in one positioning hole to enable the heating assembly to be arranged on the shell, the opening of the reflecting cover faces inwards, when the hanging lug, the turnover type reflecting cover structure greatly widens the operation space for replacing the halogen lamp tube, and saves time and experiment cost.)

1. The utility model provides a high temperature radiation heating equipment for normal position loading diffraction experiment, includes connecting piece, last heating unit, lower heating unit and lower connecting piece, it is fixed in to go up the connecting piece go up the heating unit top, the connecting piece is fixed in down heating unit bottom, go up the heating unit with lower heating unit structure is the same and reciprocal anchorage, its characterized in that: go up the heating unit and include casing, heating element and installed part, the installed part is fixed in the casing, the installed part be equipped with spout and two with the locating hole of spout intercommunication, heating element includes bowl, halogen fluorescent tube and hangers, halogen fluorescent tube install in the bowl, the hangers is fixed in the bowl is outside, the hangers stretches into the spout and accepts in one the locating hole makes heating element install in the casing, at this moment the bowl opening is inwards, works as the hangers is followed the spout slides and accepts in another during the locating hole, the bowl opening outwards is convenient for the halogen fluorescent tube is changed.

2. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 1, wherein: the shell comprises a fixing plate, the cross section of the fixing plate is triangular, and the heating assembly is arranged on the bevel edge of the fixing plate.

3. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 2, wherein: the upper heating unit comprises two heating components, the lower heating unit comprises two heating components, and the four heating components are centrosymmetric about a focusing position.

4. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 3, wherein: and a plurality of heat dissipation holes are formed in the position, far away from the focusing position, of the reflector.

5. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 1, wherein: the mounting piece is L-shaped.

6. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 1, wherein: the positioning holes are located at two opposite ends of the sliding groove.

7. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 1, wherein: the shell comprises a side plate, the side plate is provided with an opening, the opening is semicircular, the upper heating unit and the lower heating unit are fixed to enable the opening of the upper heating unit and the opening of the lower heating unit to be folded to form a connecting hole, and the connecting hole is located on two opposite sides of the high-temperature radiation heating equipment for the in-situ loading diffraction experiment and is located on the same straight line with the focusing center.

8. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 1, wherein: the shell comprises a top wall, the upper connecting piece comprises a base, and the base is fixed on the top wall.

9. The high temperature radiant heating apparatus for in situ loading diffraction experiments of claim 8, wherein: the upper connecting piece comprises a fixing ring, and the fixing ring is fixed on the base.

10. The high temperature radiant heating apparatus for in situ loading diffraction experiments as claimed in claim 1, wherein: the high-temperature radiation heating equipment for the in-situ loading diffraction experiment further comprises a sealing coaming, wherein the sealing coaming is installed on the upper heating unit and the lower heating unit, so that the inner wall of the high-temperature radiation heating equipment for the in-situ loading diffraction experiment is sealed, and a neutron beam window is arranged on the sealing coaming to cover the neutron beam current transmission path.

Technical Field

The invention relates to the field of neutron diffraction, in particular to high-temperature radiation heating equipment for an in-situ loading diffraction experiment.

Background

Neutron diffraction plays a major role in the field of material research, including analysis of material components, internal stress, microstructure, and the like. In order to more accurately research the material performance, a high-temperature in-situ loading diffraction experiment is concerned more and more, wherein a mechanical loading instrument usually adopts a mature standard product, and a matched high-temperature heating device is usually customized according to needs, particularly a high-temperature radiation heating device needs to be designed according to the size of a sample, the size of the mechanical loading instrument and a neutron beam transmission path. The high-temperature radiation heating equipment mainly comprises a halogen lamp tube, a reflecting cover, a matched cooling system, a ventilation system and the like. Because the highest heating temperature of a sample in a neutron in-situ loading diffraction experiment needs to reach more than 1000 ℃, a halogen lamp tube is required to have very high linear power density, one in-situ experiment usually lasts for hours, the service life of the lamp tube faces to a greater test, lamp tube failure also happens occasionally in the experiment process, the reflector of the existing high-temperature radiation heating equipment is fixed on a frame through bolts, the operation space is limited when the lamp tube is replaced, and the consumed time is long.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the high-temperature radiation heating equipment for the in-situ loading diffraction experiment, which is convenient for replacing the halogen lamp tube.

The purpose of the invention is realized by adopting the following technical scheme:

a high-temperature radiation heating device for in-situ loading diffraction experiments comprises an upper connecting piece, an upper heating unit, a lower heating unit and a lower connecting piece, wherein the upper connecting piece is fixed at the top of the upper heating unit, the lower connecting piece is fixed at the bottom of the lower heating unit, the upper heating unit and the lower heating unit are identical in structure and are mutually fixed, the upper heating unit comprises a shell, a heating assembly and an installation piece, the installation piece is fixed on the shell and is provided with a sliding groove and two positioning holes communicated with the sliding groove, the heating assembly comprises a reflecting cover, a halogen lamp tube and a hanging lug, the halogen lamp tube is installed in the reflecting cover, the hanging lug is fixed outside the reflecting cover, the hanging lug extends into the sliding groove and is accommodated in one positioning hole to enable the heating assembly to be installed on the shell, and the opening of the reflecting cover faces inwards at the moment, when the hanging lug slides along the sliding groove and is contained in the other positioning hole, the opening of the reflecting cover faces outwards, so that the halogen lamp tube is convenient to replace.

Further, the shell comprises a fixing plate, the cross section of the fixing plate is triangular, and the heating assembly is installed on the inclined edge of the fixing plate.

Further, the upper heating unit includes two heating elements, and the lower heating unit includes two heating elements, and the four heating elements are centrosymmetric with respect to the focusing position.

Furthermore, a plurality of heat dissipation holes are formed in the position, far away from the focusing position, of the reflector.

Further, the mounting piece is L-shaped.

Further, the positioning holes are located at two opposite ends of the sliding groove.

Further, the shell comprises a side plate, the side plate is provided with an opening, the opening is semicircular, the upper heating unit and the lower heating unit are fixed, so that the opening of the upper heating unit and the opening of the lower heating unit are folded to form a connecting hole, and the connecting hole is located on two opposite sides of the high-temperature radiation heating equipment for the in-situ loading diffraction experiment and is in the same straight line with the focusing center.

Further, the housing includes a top wall, and the upper connector includes a base fixed to the top wall.

Further, go up the connecting piece including solid fixed ring, gu fixed ring is fixed in the base.

Further, the high-temperature radiation heating equipment for the in-situ loading diffraction experiment further comprises a sealing coaming plate, the sealing coaming plate is installed on the upper heating unit and the lower heating unit, so that the inner wall of the high-temperature radiation heating equipment for the in-situ loading diffraction experiment is sealed, and a neutron beam window is arranged on the sealing coaming plate to cover the neutron beam transmission path.

Compared with the prior art, the high-temperature radiation heating equipment for the in-situ loading diffraction experiment has the following advantages:

(1) the whole structure of the equipment is simple and compact, the occupied space is small, and the neutron beam current transmission is smooth;

(2) the device consists of a main body heating unit and a connecting piece structure, wherein the connecting piece has replaceability, and can be matched with mechanical loading instruments of different sizes by matching with different connecting piece structures, so that the configuration of laboratory equipment can be better simplified, and the economical efficiency can be improved;

(3) the turnover type reflecting cover structure greatly widens the operation space for replacing the halogen lamp tube, and saves the operation and maintenance time and the experiment cost;

(4) an arc-shaped sealing surrounding plate structure made of high-rigidity materials is adopted, a strip-shaped neutron beam window with high neutron transmittance is arranged in the center of the surrounding plate, such as an aluminum window, and the experimental requirements of vacuum or inert gas atmosphere at the high temperature of 1400 ℃ can be met;

(5) the high-temperature radiation heating equipment can be designed in a proper scale reduction manner, and a high-temperature in-situ loading diffraction experiment in the field of X-ray synchrotron radiation is realized.

Drawings

FIG. 1 is a perspective view of a high temperature radiant heating apparatus for in situ loading diffraction experiments according to the present invention;

FIG. 2 is an enlarged view of the high temperature radiant heating apparatus A of FIG. 1 for in situ loading diffraction experiments;

FIG. 3 is a perspective view of a sealing shroud of the high temperature radiant heating apparatus of FIG. 1 for in situ loading diffraction experiments;

FIG. 4 is an exploded view of the high temperature radiant heating apparatus of FIG. 1 for in situ loading diffraction experiments;

FIG. 5 is a schematic diagram of the internal structure of the high-temperature radiant heating device for in-situ loading diffraction experiment in FIG. 1;

fig. 6 is a schematic view of the halogen lamp tube maintenance of the high temperature radiant heating apparatus for in-situ loading diffraction experiment of fig. 5.

In the figure: 10. an upper connecting piece; 11. a base; 12. a fastener; 13. a fixing ring; 20. an upper heating unit; 21. a housing; 210. a top wall; 2101. a fixing hole; 211. a side plate; 2110. opening a hole; 212. a fixing plate; 22. a heating assembly; 221. a reflector; 2210. heat dissipation holes; 222. a halogen lamp tube; 223. hanging a lug; 23. a mounting member; 230. a fixed end; 231. a connecting end; 2310. a chute; 2311. positioning holes; 30. a lower heating unit; 40. a lower connecting piece; 50. connecting holes; 60. sealing the enclosing plate; 61. a neutron beam window.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, an embodiment of a high temperature radiation heating apparatus for in-situ loading diffraction experiments according to the present invention includes an upper connector 10, an upper heating unit 20, a lower heating unit 30, a lower connector 40, and a sealing enclosure 60.

The upper connecting member 10 includes a base 11, a fastening member 12, and two fixing rings 13. The fasteners 12 are bolts. The base 11 is fixed to the upper heating unit 20 by a fastener 12. Two fixing rings 13 are fixed to the base 11. The fixing ring 13 is used for fixing the upper and lower beams of the loading instrument. Because of symmetry, the above connecting piece 10 is taken as an example for explanation, two fixing rings 13 are welded at two ends of a base 11 of the upper connecting piece 10, the inner diameter of the fixing rings is consistent with the outer diameter of an upper beam of the mechanical loader, and the fixing rings and the upper beam are in transition fit installation to fix the high-temperature radiation heating equipment on the mechanical loader.

The upper heating unit 20 includes a housing 21, two heating assemblies 22, and four mounts 23. The housing 21 includes a top wall 210, side plates 211, and a fixing plate 212. The top wall 210 is circular and is provided with a fixing hole 2101. The top wall 210 is fixed to the upper link 10 through the fixing holes 2101. The side plate 211 is circular arc-shaped. The side plate 211 has openings 2110 at both sides thereof away from the top wall 210. The opening 2110 is semi-circular. The fixing plate 212 is fixed to the top wall 210 and the side plate 211. The fixing plate 212 has a triangular cross-section. The housing 21 is of a symmetrical structure as a whole. Each heating element 22 includes a reflector 221, a halogen lamp tube 222 and two hanging lugs 223. The reflection cover 221 has a rectangular parallelepiped shape and a hollow structure. The halogen lamp tube 222 is installed in the reflection cover 221. The reflector 221 has a plurality of heat dissipation holes 2210 near one end of the halogen lamp 222. The two hanging lugs 223 are respectively fixed at two outer ends of the reflection cover 221. An opening is formed at an end of the reflection cover 221 away from the halogen lamp tube 222. Each mounting member 23 is L-shaped. The mounting member 23 includes a fixed end 230 and a connection end 231. The fixing end 230 is fixed to the fixing plate 212, and the connecting end 231 is provided with a sliding slot 2310 and two positioning holes 2311. The two positioning holes 2311 are respectively located at two ends of the sliding groove 2310. The hanging lug 223 of each heating element 22 is received in the positioning hole 2311 of the mounting member 23 adjacent to the fixing plate 212, so that the heating element 22 is mounted on the housing 21. At this time, the heating elements 22 are attached to the fixing plate 212 with the openings facing inward, and the two heating elements 22 are symmetrical.

The lower heating unit 30 has the same structure as the upper heating unit 20. The lower link 40 has the same structure as the upper link 10. The sealing shroud 60 is circular in shape. A band-shaped neutron beam window 61 is arranged in the center of the sealing surrounding plate 60 to cover a neutron beam transmission path, the width of the band-shaped neutron beam window is about 10mm, and the structure meets the requirement of the overall rigidity of the device and has good neutron transmittance.

When assembling the high-temperature radiation heating apparatus for the in-situ loading diffraction experiment, the upper connection member 10 is fixed to the fixing hole 2101 of the upper heating unit 20 by the fastening member 12. The fasteners 12 are bolts. The lower connector 40 is fixed to the lower heating unit 30 in the same manner. The upper heating unit 20 and the lower heating unit 30 are fixed by bolts. At this time, the holes 2110 of the upper heating unit 20 are combined with the holes 2110 of the lower heating unit 30 to form the connection holes 50. The four heating elements 22 are now centered symmetrically about the focal position. The sealing enclosure 60 is hermetically installed with the upper heating unit 20 and the lower heating unit 30 to realize a vacuum or inert gas atmosphere, and the sealing enclosure 60 is connected with the apparatus frame in a bolt connection manner.

When the high-temperature radiation heating equipment for the in-situ loading diffraction experiment is used, the fixing rings 13 on the upper connecting piece 10 and the lower connecting piece 40 are respectively fixed with the upper cross beam and the lower cross beam of the loading instrument. The loading shaft of the mechanical loader is arranged in the connecting hole 50 and clamps the sample, and the sample is clamped by the loading shaft clamp of the mechanical loader and is positioned at the central focusing position of the four heating components 22. When the mechanical loading instrument needs to be installed on another mechanical loading instrument, the upper connecting piece 10 and the lower connecting piece 40 with corresponding sizes only need to be replaced, and matching with different mechanical loading instruments can be achieved. Taking the above connector 10 as an example, the thickness of the base 11 of the upper connector 10 and the inner diameter of the fixing ring 13 are changed.

When the halogen lamp tube 222 needs to be replaced or maintained, the reflector 221 is supported to enable the hanging lug 223 to slide to the outer side from the inner side along the sliding groove 2310 of the L-shaped mounting part 23 and be clamped into the outer side positioning hole 2311, the reflector 221 is turned over immediately and the angle is adjusted, the maintenance operation of the halogen lamp tube 222 can be carried out, the reflector 221 does not need to be disassembled and assembled, the time is saved, and meanwhile, the operation space for replacing the lamp tube is greatly widened by the method.

Through the design, the whole structure of the equipment is simple and compact, the occupied space is small, and the neutron beam current transmission is smooth; the device consists of a main body heating unit and a connecting piece structure, wherein the connecting piece has replaceability, and can be matched with mechanical loading instruments of different sizes by matching with different connecting piece structures, so that the configuration of laboratory equipment can be better simplified, and the economical efficiency can be improved; the turnover type reflecting cover 221 structure greatly widens the operation space for replacing the halogen lamp tube 222, and saves operation and maintenance time and experiment cost; an arc-shaped sealing surrounding plate 60 structure made of high-rigidity materials is adopted, a strip-shaped neutron beam window 61 with high neutron transmittance is arranged in the center of the surrounding plate, such as an aluminum window, and the experimental requirements of vacuum or inert gas atmosphere at the high temperature of 1400 ℃ can be met; the high-temperature radiation heating equipment can be designed in a proper scale reduction manner, and a high-temperature in-situ loading diffraction experiment in the field of X-ray synchrotron radiation is realized.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.