CN107068222B - Atomic furnace with water-cooling structure without welding seam and easily replaced heating body - Google Patents
Atomic furnace with water-cooling structure without welding seam and easily replaced heating body Download PDFInfo
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- CN107068222B CN107068222B CN201610913425.0A CN201610913425A CN107068222B CN 107068222 B CN107068222 B CN 107068222B CN 201610913425 A CN201610913425 A CN 201610913425A CN 107068222 B CN107068222 B CN 107068222B
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- heating body
- water
- heat shield
- end surface
- cooling
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
-
- 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
Abstract
The invention discloses a nuclear reactor with a water-cooling structure without welding seams and a heating body easy to replace, which comprises a heat shield, wherein a shell is sleeved outside the heat shield, and the upper end surface and the lower end surface of the shell are respectively provided with an upper end cover and a base; the transition baffle is arranged in the baffle groove of the upper end cover, the crucible assembly is arranged in the crucible groove of the transition baffle, and the heating body assembly is arranged in a gap in the middle of the heat shield; the side wall water cooling pipeline and the upper and lower end surface water cooling pipelines are wound outside the shell; the first water-cooling electrode and the second water-cooling electrode are respectively connected with the left heating body leading-out part and the right heating body leading-out part of the heating body assembly. The invention adopts the water-cooling coil pipe structure, ensures that the part of the atomic furnace positioned in the vacuum chamber has no welding water-cooling structure, and improves the reliability of the water-cooling structure; the heating body is convenient to replace due to structural design; the metal heat shields are arranged in a staggered manner in blocks, so that the heat shielding effect is improved, and the local stress of the heat shields is prevented from being overlarge; the heating body leading-out part adopts a thickening design, and reduces the heat radiated by the leading-out part of the tantalum sheet into the vacuum chamber.
Description
Technical Field
The invention belongs to the field of atomic furnaces, and particularly relates to an atomic furnace with a water-cooling structure without a welding seam and a heating body easy to replace.
Background
The application of atomic furnaces is wide, but most of the atomic furnaces adopt a welding water jacket cooling structure at present, and a heating body is complex to replace, even cannot be replaced by one-time installation. Some processes or tests are extremely sensitive to water content, the leakage phenomenon of cooling water is not allowed to occur, and the existence of welding seams of the water-cooling structure becomes hidden danger of the water leakage phenomenon. On the other hand, the service life of the heating body is a key factor for determining the service life of the atomic furnace, so that the convenient replacement of the heating body can greatly shorten the maintenance period of the atomic furnace and prolong the service life of the atomic furnace.
Disclosure of Invention
The invention is provided for overcoming the defects in the prior art, and aims to provide a nuclear furnace with a water-cooling structure without welding seams and a heating body which is easy to replace and works in a vacuum environment.
The technical scheme of the invention is as follows:
a atomic furnace with a water-cooling structure without welding seams and a heating body easy to replace comprises a heat shield, wherein a shell is sleeved outside the heat shield, and the upper end surface and the lower end surface of the shell are respectively provided with an upper end cover and a base; the transition baffle is arranged in the baffle groove of the upper end cover, the crucible assembly is arranged in the crucible groove of the transition baffle, and the heating body assembly is arranged in a gap in the middle of the heat shield; the side wall water cooling pipeline and the upper and lower end surface water cooling pipelines are wound outside the shell; the first water-cooling electrode and the second water-cooling electrode are respectively connected with the left heating body leading-out part and the right heating body leading-out part of the heating body assembly.
The heat shield is a cuboid structure formed by splicing a plurality of heat insulation plates with different sizes in a staggered manner, and the shape and the size of the periphery of a cuboid surrounded by the outermost heat insulation plates are matched with the shape and the size of the periphery of the shell; the shape and the size of the gap are matched with the shape and the size of the periphery of an outer heat shield of the heating body assembly; the upper edges of the heat insulation plates on the opposite sides are respectively provided with a leading-out part clamping groove, and the inner insulation plates on the same sides are connected with the corresponding side walls or the bottom surfaces of the shell in series through pins.
The upper end cover is provided with a baffle groove matched with the transition baffle in shape and size, the bottom of the middle baffle groove is provided with a heating body assembly outlet matched with the outer heat shield of the heating body assembly in shape and size, and the bottoms of the slender strip parts at the two ends are provided with openings corresponding to the clamping grooves of the leading-out parts.
A plurality of mutually parallel pipe grooves are formed on the upper end surface of the base; the pipe groove is arranged along the direction parallel to the leading-out part of the heating body.
The transition baffle is of a rectangular plate-shaped structure, the side walls in the two width directions extend outwards to form convex edges, and a crucible groove matched with the mounting plate of the crucible assembly in shape and size is formed in the middle of the transition baffle.
The crucible assembly includes a mounting plate formed with a plurality of crucible holes and a crucible disposed within the crucible holes.
The heating member subassembly includes from the inside to the outer heat shield of establishing interior heat shield and outer heat shield, installs the heating member in interior heat shield, interior heat shield and outer heat shield are the open cavity cuboid structure in upper end, and along all forming the slit on both ends lateral walls, and the outside extension in heating member both ends forms heating member extraction portion, and heating member extraction portion stretches out outer heat shield by slit department, and the heating member extraction portion outside that is located clearance department between interior heat shield and the outer heat shield is provided with ceramic cushion.
And the side wall water cooling pipeline is annularly coiled outside the side wall of the shell.
The middle parts of the upper end surface water cooling pipeline and the lower end surface water cooling pipeline are wound in an S shape in a plurality of pipe grooves on the base, and the upper end surface water cooling pipeline and the lower end surface water cooling pipeline which are positioned at the lower part of the upper end cover are arranged in a non-closed loop mode according to the outline shape of the transition baffle.
The heating body and the leading-out part of the heating body are both made of high-temperature-resistant tantalum sheet materials, and the thickness of the leading-out part of the heating body is larger than that of the heating body.
The invention has the beneficial effects that:
the invention adopts the water-cooling coil pipe structure, ensures that the part of the atomic furnace positioned in the vacuum chamber has no welding water-cooling structure, and improves the reliability of the water-cooling structure; the heating body structure is convenient to design and replace, and the heating body assembly is quickly replaced; the metal heat shields are arranged in a staggered manner in blocks, so that the heat shielding effect is improved, and the local stress of the heat shields is prevented from being overlarge; the heating body leading-out part adopts a thickening design, and reduces the heat radiated by the leading-out part of the tantalum sheet into the vacuum chamber.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is a side wall water cooling circuit layout of the present invention;
FIG. 5 is a layout view of water cooling pipes on the upper and lower end faces of the present invention;
FIG. 6 is a schematic structural view of a mid-heater assembly of the present invention;
fig. 7 is a schematic view of the structure of the heating body of the present invention in a state of being taken out or put in;
fig. 8 is a schematic view of the construction of the thermal shield of the present invention.
Wherein:
1. upper end cover of heat shield 2
3. Base 4 transition baffle
5. Heating body assembly of crucible assembly 6
7. First water-cooled electrode 8 and second water-cooled electrode
9. Water cooling pipeline with upper end surface and lower end surface of side wall water cooling pipeline 10
11. Shell 12 heat insulation plate
13. Draw-out portion draw-in groove 14 pin
21. Baffle slot 22 opening
31. Pipe chase 51 mounting plate
52. Heating body of crucible 61
62. Inner heat shield 63 and outer heat shield
64. The heating body lead-out section 65 is a ceramic pad.
Detailed Description
The atomic furnace with a water-cooling structure without welding seams and a heating body easy to replace is described in detail by combining the attached drawings and the embodiment of the specification:
as shown in 1~8, the atomic furnace with a water-cooling structure and no welding seams and an easily replaceable heating body comprises a heat shield 1, wherein a shell 11 is sleeved outside the heat shield 1, and an upper end cover 2 and a base 3 are respectively arranged on the upper end surface and the lower end surface of the shell 11; the transition baffle 4 is arranged in the baffle groove 21 of the upper end cover 2, the crucible assembly 5 is arranged in the crucible groove 41 of the transition baffle 4, and the heating body assembly 6 is arranged in a gap in the middle of the heat shield 1; the side wall water cooling pipeline 9 and the upper and lower end surface water cooling pipelines 10 are wound outside the shell 11; the first water-cooled electrode 7 and the second water-cooled electrode 8 are connected to two heater lead-out portions 64 on the left and right of the heater assembly 6, respectively.
The heat shield 1 is a cuboid structure formed by splicing a plurality of heat insulation plates 12 with different sizes in a staggered manner, and the shape and the size of the periphery of a cuboid surrounded by the heat insulation plates 12 at the outermost side are matched with the shape and the size of the inner periphery of the shell 11; a cuboid gap is formed by the inner wall of the innermost heat insulation plate 12, and the shape and the size of the gap are matched with the shape and the size of the periphery of an outer heat insulation screen 63 of the heating body assembly 6; the upper edges of the heat insulation plates 12 on the opposite sides are all formed with leading-out part clamping grooves 13, and the inner insulation plates 12 on the same sides are connected in series with the side walls or the bottom surfaces of the corresponding shells 1 through pins 14.
The upper end cover 2 is provided with a baffle groove 21 matched with the transition baffle 4 in shape and size, the bottom of the middle groove of the baffle groove 21 is provided with a heating body assembly outlet matched with the outer heat shield of the heating body assembly 6 in shape and size, and the bottoms of the slender strip parts at the two ends are provided with openings 22 corresponding to the leading-out part clamping grooves 13.
A plurality of mutually parallel pipe grooves 31 are formed on the upper end surface of the base 3; and the pipe groove 31 is provided in a direction parallel to each other with the heating body drawing part 64.
The transition baffle 4 is of a rectangular plate-shaped structure, two side walls in the width direction extend outwards to form convex edges, and a crucible groove matched with the mounting plate 51 of the crucible assembly 5 in shape and size is formed in the middle of the transition baffle 4.
The crucible assembly 5 includes a mounting plate 51 formed with a plurality of crucible holes and a crucible 52 disposed within the crucible holes.
The lateral wall water cooling pipeline 9 is annularly coiled outside the lateral wall of the shell 11, and water cooling on the lateral wall of the heat shield 1 is realized.
The middle parts of the upper and lower end surface water cooling pipelines 10 are wound in a plurality of pipe grooves 31 on the base 3 in an S shape, and the upper and lower end surface water cooling pipelines 10 positioned at the lower part of the upper end cover 2 are arranged in a non-closed loop mode according to the outline shape of the transition baffle 4. The winding mode of the upper end surface water cooling pipeline 10 and the lower end surface water cooling pipeline 10 is to enable a heating body to be taken out from the upper surface of the atomic furnace, so that the arrangement of the upper end surface water cooling pipeline 10 and the lower end surface water cooling pipeline 10 below the upper end cover 2 cannot interfere with the taking-out path of the heating body assembly 6, and therefore the upper end surface water cooling pipeline 10 and the lower end surface water cooling pipeline 10 cannot form a closed loop below the upper end cover 2; the parts of the water cooling pipelines 10 on the upper end surface and the lower end surface, which are positioned on the base 3, adopt a mode of multiple wraparound, so that the water cooling capacity is enhanced.
The heating body 61 and the heating body leading-out part 64 are made of high-temperature-resistant tantalum sheets, and the thickness of the heating body leading-out part 64 is larger than that of the heating body 61. The thickened design of the heater lead-out portion 64 reduces the resistance of the heater lead-out portion 64, thereby reducing heat generation and minimizing the heat radiated from the heater lead-out portion 64 into the vacuum chamber.
The crucible 52 is a tubular crucible, and a plurality of crucibles 52 are arranged in an array.
The side wall water cooling pipeline 9 and the upper and lower end surface water cooling pipelines 10 are seamless coil pipes.
The heat shield 1, the inner heat shield 62 and the outer heat shield 63 are all made of metal heat shields. The heat shield 1 adopts the metal heat shield, and the heat shield 1 adopts the form of crisscross concatenation, has both been favorable to improving heat shield effect, can avoid heat shield 1 to be heated again and arouse the too big problem of local stress.
The use method of the invention comprises the following steps:
when the heating body assembly 6 or any part thereof needs to be replaced, the transition baffle 4 and the crucible assembly 5 are taken down, the heating body assembly 6 can pass through the heating body assembly outlet in the middle of the upper end cover 2 and the slit openings 22 on the two sides, and the heating body assembly 6 can be conveniently taken out or put in from the upper end face.
The seamless coil pipe water cooling structure is adopted, all the water cooling structures in the vacuum chamber are ensured to be free of welding, and the reliability of the water cooling structure is greatly improved; by skillfully arranging the winding form of the water cooling pipeline, the side wall of the atomic furnace is cooled by water, and the upper end surface and the lower end surface are cooled by water, so that the overall water cooling capacity is enhanced, and the water cooling effect is improved; the heating body module can be conveniently replaced by adopting a tantalum sheet as the heating body and adopting a metal heat shield for heat shielding, and the heating body and the innermost two layers of heat shields are designed into an integral module, so that the replacement time of the heating body is greatly shortened, the maintainability of the atomic furnace is improved, and the service life of the atomic furnace is prolonged; the metal heat shields are arranged in a block staggered manner, so that the heat shields are in a free state, the problem of overlarge local stress caused by thermal deformation is avoided, and the staggered arrangement manner is favorable for improving the heat shielding effect; the heating body is made of high-temperature-resistant tantalum sheets, the leading-out part of the heating body is thickened, and the resistance of the leading-out part is reduced, so that the heat emitted by the leading-out part of the tantalum sheets into the vacuum chamber is reduced.
Claims (10)
1. The utility model provides a atomic furnace that water-cooling structure does not have welding seam and heating member is easily changed which characterized in that: the heat insulation device comprises a heat insulation screen (1), wherein a shell (11) is sleeved outside the heat insulation screen (1), and an upper end cover (2) and a base (3) are respectively arranged on the upper end surface and the lower end surface of the shell (11); the transition baffle (4) is arranged in a baffle groove (21) of the upper end cover (2), the crucible component (5) is arranged in a crucible groove (41) of the transition baffle (4), and the heating body component (6) is arranged in a middle gap of the heat shield (1); the side wall water cooling pipeline (9) and the upper and lower end surface water cooling pipelines (10) are wound outside the shell (11); the first water-cooled electrode (7) and the second water-cooled electrode (8) are respectively connected with the left heating body leading-out part and the right heating body leading-out part (64) of the heating body assembly (6).
2. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 is characterized in that: the heat shield (1) is a cuboid structure formed by splicing a plurality of heat insulation plates (12) with different sizes in a staggered manner, and the peripheral shape and size of a cuboid surrounded by the heat insulation plates (12) at the outermost side are matched with the inner shape and size of the shell (11); a cuboid gap is formed by the inner wall of the innermost side heat insulation board (12), and the shape and the size of the gap are matched with the shape and the size of the periphery of an outer heat insulation screen (63) of the heating body assembly (6); the upper edges of the heat insulation plates (12) on the opposite sides are respectively provided with a leading-out part clamping groove (13), and the inner insulation plates (12) on the same sides are connected with the side walls or the bottom surfaces of the corresponding shells (1) in series through pins (14).
3. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 is characterized in that: the upper end cover (2) is provided with a baffle groove (21) matched with the transition baffle (4) in shape and size, the bottom of the middle groove of the baffle groove (21) is provided with a heating body assembly outlet matched with the outer heat shield of the heating body assembly (6) in shape and size, and the bottoms of the slender strip parts at two ends are provided with openings (22) corresponding to the leading-out part clamping grooves (13).
4. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 is characterized in that: a plurality of mutually parallel pipe grooves (31) are formed on the upper end surface of the base (3); the tube groove (31) is arranged along the direction parallel to the heating body leading part (64).
5. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 is characterized in that: the transition baffle (4) is of a rectangular plate-shaped structure, the side walls of the two width directions extend outwards to form convex edges, and a crucible groove matched with the mounting plate (51) of the crucible assembly (5) in shape and size is formed in the middle of the transition baffle (4).
6. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 is characterized in that: the crucible assembly (5) includes a mounting plate (51) formed with a plurality of crucible holes and a crucible (52) disposed in the crucible holes.
7. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 is characterized in that: heating member subassembly (6) are installed in heating member (61) in interior heat shield (62) including interior heat shield (62) and outer heat shield (63) of installing and from interior to the overcoat, interior heat shield (62) and outer heat shield (63) are the open cavity cuboid structure in upper end, and along all forming the slit on both ends lateral wall, heating member (61) both ends outwards extend and form heating member extraction portion (64), heating member extraction portion (64) stretch out outer heat shield (63) by slit department, and heating member extraction portion (64) outside that is located clearance department between interior heat shield (62) and outer heat shield (63) is provided with ceramic cushion (65).
8. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 or 2, is characterized in that: and the side wall water cooling pipeline (9) is annularly coiled outside the side wall of the shell (11).
9. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 1 or 4, is characterized in that: the middle parts of the upper end surface water-cooling pipeline and the lower end surface water-cooling pipeline (10) are wound in an S shape in a plurality of pipe grooves (31) on the base (3), and the upper end surface water-cooling pipeline and the lower end surface water-cooling pipeline (10) which are positioned at the lower part of the upper end cover (2) are arranged in a non-closed loop mode according to the outline shape of the transition baffle (4).
10. The atomic furnace with the water-cooling structure without welding seams and the heating body easy to replace according to claim 7, is characterized in that: the heating body (61) and the heating body leading-out part (64) are both made of high-temperature-resistant tantalum sheet materials, and the thickness of the heating body leading-out part (64) is larger than that of the heating body (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913425.0A CN107068222B (en) | 2016-10-20 | 2016-10-20 | Atomic furnace with water-cooling structure without welding seam and easily replaced heating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913425.0A CN107068222B (en) | 2016-10-20 | 2016-10-20 | Atomic furnace with water-cooling structure without welding seam and easily replaced heating body |
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| Publication Number | Publication Date |
|---|---|
| CN107068222A CN107068222A (en) | 2017-08-18 |
| CN107068222B true CN107068222B (en) | 2023-04-18 |
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| CN201610913425.0A Active CN107068222B (en) | 2016-10-20 | 2016-10-20 | Atomic furnace with water-cooling structure without welding seam and easily replaced heating body |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH03277728A (en) * | 1990-03-27 | 1991-12-09 | Shinko Electric Co Ltd | Furnace body structure of cold wall type crucible |
| CN202648375U (en) * | 2012-02-02 | 2013-01-02 | 中国科学院福建物质结构研究所 | High-temperature and high-vacuum electric resistance furnace |
| CN202658265U (en) * | 2012-06-25 | 2013-01-09 | 上海嘉森真空科技有限公司 | Crystal growing furnace |
| TWM464723U (en) * | 2013-05-24 | 2013-11-01 | Chia Cherne Industry Co Ltd | Multi-piece water cooling heat sink structure |
| CN203533514U (en) * | 2013-08-29 | 2014-04-09 | 中国瑞林工程技术有限公司 | Waste heat boiler inlet water cooling device quick to assemble and disassemble |
| CN204289553U (en) * | 2014-10-24 | 2015-04-22 | 北汽福田汽车股份有限公司 | A kind of water-cooled cells bag |
| CN206282619U (en) * | 2016-10-20 | 2017-06-27 | 核工业理化工程研究院 | A kind of water-cooling structure no-welding-seam and the easily changeable atomic pile of calandria |
-
2016
- 2016-10-20 CN CN201610913425.0A patent/CN107068222B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03277728A (en) * | 1990-03-27 | 1991-12-09 | Shinko Electric Co Ltd | Furnace body structure of cold wall type crucible |
| CN202648375U (en) * | 2012-02-02 | 2013-01-02 | 中国科学院福建物质结构研究所 | High-temperature and high-vacuum electric resistance furnace |
| CN202658265U (en) * | 2012-06-25 | 2013-01-09 | 上海嘉森真空科技有限公司 | Crystal growing furnace |
| TWM464723U (en) * | 2013-05-24 | 2013-11-01 | Chia Cherne Industry Co Ltd | Multi-piece water cooling heat sink structure |
| CN203533514U (en) * | 2013-08-29 | 2014-04-09 | 中国瑞林工程技术有限公司 | Waste heat boiler inlet water cooling device quick to assemble and disassemble |
| CN204289553U (en) * | 2014-10-24 | 2015-04-22 | 北汽福田汽车股份有限公司 | A kind of water-cooled cells bag |
| CN206282619U (en) * | 2016-10-20 | 2017-06-27 | 核工业理化工程研究院 | A kind of water-cooling structure no-welding-seam and the easily changeable atomic pile of calandria |
Non-Patent Citations (1)
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| 李斌.全水冷式汽轮发电机、超导发电机以及悬臂式氢冷无刷励磁系统.电气应用.-,第-卷(第06期),全文. * |
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| CN107068222A (en) | 2017-08-18 |
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