CN211209956U - Along controllable board that generates heat of length direction resistance - Google Patents
Along controllable board that generates heat of length direction resistance Download PDFInfo
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- CN211209956U CN211209956U CN202020063646.5U CN202020063646U CN211209956U CN 211209956 U CN211209956 U CN 211209956U CN 202020063646 U CN202020063646 U CN 202020063646U CN 211209956 U CN211209956 U CN 211209956U
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Abstract
The utility model discloses a along controllable board that generates heat of length direction resistance includes at least two-layer that generates heat, the thickness on layer that generates heat is continuous gradient along length direction and changes, and one in two adjacent layers that generate heat generates heat and generates heat the layer along length direction's thickness and another layer that generates heat and become opposite change along length direction's thickness, and two adjacent connection contact surfaces that generate heat between the layer are the curved surface, and two adjacent materials that generate heat the layer are different. The utility model discloses a range upon range of the board that generates heat that forms in the layer that generates heat of a plurality of different materials, the thickness on the layer that generates heat through the design is the resistance that continuous gradient changes the board that generates heat of accurate control along length direction and changes along length direction continuous variation, thereby makes the utility model provides an in the analogue test that generates heat along length direction resistance controllable metal sheet can be applied to the fuel board.
Description
Technical Field
The utility model relates to an electrical heating technical field, in particular to along controllable board that generates heat of length direction resistance.
Background
In a nuclear reactor, there are a large number of fuel rods or fuel plates, and the amount of heat generation thereof is not uniform in the longitudinal direction (axial direction). In the design process, relevant experiments are required to be carried out to research relevant performances of the fuel, and the common experiments adopt electric heating to simulate nuclear heat release of the fuel, so that the heat generation rate of the heat generation layer used for the experiments along the length direction is required to be controllable, namely the resistance of the heat generation layer along the length direction is required to be accurately controlled according to requirements.
The method which can be researched at present and meets the functions is to adopt a gradient functional material which is a novel composite material formed by compounding two or more materials and continuously changing the components and the structure in a gradient way, and the gradient functional material is formed by continuously changing the components and the structure of the two (or more) materials to ensure that the interface disappears, so that the performance of the material is slowly changed along with the change of the components and the structure of the material. With the development of functionally gradient materials, they exhibit unique characteristics in aerospace, nuclear reactors, electromagnetism, medicine and biology, optics and chemistry, and many functionally gradient materials have been used in engineering. However, the production cost thereof is high, and it is difficult to achieve continuous variation of the resistivity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a along controllable board that generates heat of length direction resistance to solve above-mentioned technical problem.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the utility model provides an along controllable board that generates heat of length direction resistance, includes at least two-layer layers that generate heat, the thickness on layer that generates heat is continuous gradient along length direction and changes, and one in two adjacent layers that generate heat generates heat and generates heat the layer along length direction's thickness and another and generate heat the layer along length direction's thickness and become opposite change, and two adjacent connection contact surface that generate heat between the layer are the curved surface, and two adjacent materials that generate heat the layer are different.
As the preferred scheme of the utility model, the quantity on layer that generates heat is 2 ~ 3 layers.
As the preferred scheme of the utility model, the material on layer that generates heat is metal or alloy.
As the utility model discloses an optimized scheme, the quantity on layer that generates heat is 2 layers, along the controllable board that generates heat of length direction resistance by last layer and lower heating layer range upon range of formation that generates heat, the lower surface downward protrusion on the layer that generates heat on goes up forms convex curved surface, the upper surface undercut of lower heating layer form with the sunken curved surface of convex curved surface adaptation.
Furthermore, the convex curved surface of the upper heating layer is fixedly connected with the concave curved surface of the lower heating layer in a welding mode.
As the utility model discloses an optimal scheme, the quantity on layer that generates heat is 3 layers, along the controllable board that generates heat of length direction resistance by last layer, the middle layer that generates heat and down the heating layer from last to stacking gradually under to, the lower surface on the layer that generates heat upwards caves in and forms sunken curved surface, the upper surface undercut of lower heating layer forms sunken curved surface, on generate heat the sunken curved surface on layer with the sunken curved surface vacuole formation of lower heating layer, the middle layer holding that generates heat in the cavity, the thickness on middle layer that generates heat is reduced to the edge by the center gradually.
Furthermore, the upper surface of the middle heating layer is fixedly connected with the concave curved surface of the upper heating layer in a welding mode, and the lower surface of the middle heating layer is fixedly connected with the concave curved surface of the lower heating layer in a welding mode.
Furthermore, the upper heating layer, the middle heating layer and the lower heating layer are made of different materials.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a range upon range of the board that generates heat that forms in the layer that generates heat of a plurality of different materials, the thickness on the layer that generates heat through the design is the resistance that continuous gradient changes the board that generates heat of accurate control along length direction and changes along length direction continuous variation, thereby makes the utility model provides an in the analogue test that generates heat along length direction resistance controllable metal sheet can be applied to the fuel board.
Drawings
The following describes the present invention with reference to the accompanying drawings. It is to be noted herein that the accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the description of the embodiments of the invention for the purpose of illustration and not for the purpose of limitation.
Fig. 1 is a schematic structural view of a resistance-controllable heating plate along a length direction according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a resistance controllable heating plate along the length direction according to embodiment 2 of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
The utility model discloses a along the controllable layer that generates heat that provides of length direction resistance including at least two-layer, the thickness on layer that generates heat is continuous gradient along length direction and changes, and one in two adjacent layers that generate heat generates heat and generates heat the layer along length direction's thickness and another layer that generates heat and become opposite change along length direction's thickness, and two adjacent connection contact surfaces that generate heat between the layer are the curved surface, and two adjacent materials that generate heat the layer are different.
Specifically, the number of the heating layers is 2-3.
Specifically, the heating layer is made of metal or alloy.
It can be understood that the total thickness of the resistance controllable heating panel along the length direction of the present invention can be determined according to the fuel to be simulated as required. The utility model discloses a range upon range of the board that generates heat that forms in the layer that generates heat of a plurality of different materials, the thickness on the layer that generates heat through the design is the resistance that continuous gradient changes the board that generates heat of accurate control along length direction and changes along length direction continuous variation, thereby makes the utility model provides an in the analogue test that generates heat along length direction resistance controllable metal sheet can be applied to the fuel board.
Example 1
As shown in fig. 1, the resistance controllable heating plate along the length direction provided in this embodiment is formed by laminating an upper heating layer 1 and a lower heating layer 2, a lower surface of the upper heating layer 1 protrudes downward to form a convex curved surface, and an upper surface of the lower heating layer 2 is recessed downward to form a recessed curved surface adapted to the convex curved surface.
The material of the upper heating layer 1 is different from that of the lower heating plate, for example, the material of the upper heating layer 1 is 321-grade stainless steel, the material of the lower heating layer 2 is INCONE L625, the thermal expansion rate and the thermal conductivity of the two materials are close, the two materials cannot fail due to the thermal expansion difference of different layers during heating, the resistivity difference of the two materials is large, and the large control range of the resistance along the length direction can be ensured.
The convex curved surface of the upper heating layer 1 is fixedly connected with the concave curved surface of the lower heating layer 2 in a welding mode, so that the strength of the whole heating plate can be ensured.
Example 2
As shown in fig. 2, the resistance controllable heating plate along the length direction provided by this embodiment is formed by sequentially stacking an upper heating layer 1, a middle heating layer 3 and a lower heating layer 2 from top to bottom, the lower surface of the upper heating layer 1 is recessed upward to form a recessed curved surface, the upper surface of the lower heating layer 2 is recessed downward to form a recessed curved surface, the recessed curved surface of the upper heating layer 1 and the recessed curved surface of the lower heating layer 2 form a cavity, the middle heating layer 3 is accommodated in the cavity, and the thickness of the middle heating layer 3 is gradually reduced from the center to the edge.
The upper surface of the middle heating layer 3 is fixedly connected with the concave curved surface of the upper heating layer 1 in a welding mode, and the lower surface of the middle heating layer 3 is fixedly connected with the concave curved surface of the lower heating layer 2 in a welding mode, so that the strength of the whole heating plate can be ensured.
The upper heating layer 1, the middle heating layer 3 and the lower heating layer 2 are made of different materials.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (8)
1. The utility model provides an along controllable board that generates heat of length direction resistance, its characterized in that, includes at least two-layer layers that generate heat, the thickness on layer that generates heat is continuous gradient change along length direction, and one in two adjacent layers that generate heat generates heat the layer and along length direction's thickness with another layer that generates heat and become opposite change along length direction's thickness, and two adjacent connection contact surfaces that generate heat between the layer are the curved surface, and two adjacent materials that generate heat the layer are different.
2. The heating panel with controllable resistance along the length direction of claim 1, wherein the number of the heating layers is 2-3.
3. The heating panel with controllable resistance along the length direction of claim 1, wherein the heating layer is made of metal or alloy.
4. The resistance-controllable heating panel along the length direction according to claim 1, wherein the number of the heating layers is 2, the resistance-controllable heating panel along the length direction is formed by laminating an upper heating layer and a lower heating layer, the lower surface of the upper heating layer protrudes downward to form a convex curved surface, and the upper surface of the lower heating layer is recessed downward to form a concave curved surface adapted to the convex curved surface.
5. The resistance-controllable heating panel according to claim 4, wherein the convex curved surface of the upper heating layer is fixedly connected with the concave curved surface of the lower heating layer by welding.
6. The resistance-controllable heating panel according to claim 1, wherein the number of the heating layers is 3, the resistance-controllable heating panel according to the length direction is formed by sequentially stacking an upper heating layer, a middle heating layer, and a lower heating layer from top to bottom, a lower surface of the upper heating layer is recessed upward to form a recessed curved surface, an upper surface of the lower heating layer is recessed downward to form a recessed curved surface, the recessed curved surface of the upper heating layer and the recessed curved surface of the lower heating layer form a cavity, the middle heating layer is accommodated in the cavity, and the thickness of the middle heating layer is gradually reduced from the center to the edge.
7. The resistance-controllable heating panel according to claim 6, wherein the upper surface of the middle heating layer is fixedly connected to the concave curved surface of the upper heating layer by welding, and the lower surface of the middle heating layer is fixedly connected to the concave curved surface of the lower heating layer by welding.
8. The heating panel with controllable resistance along the length direction of claim 6, wherein the upper heating layer, the middle heating layer and the lower heating layer are made of different materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020063646.5U CN211209956U (en) | 2020-01-13 | 2020-01-13 | Along controllable board that generates heat of length direction resistance |
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| CN202020063646.5U CN211209956U (en) | 2020-01-13 | 2020-01-13 | Along controllable board that generates heat of length direction resistance |
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| CN211209956U true CN211209956U (en) | 2020-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050435A (en) * | 2020-01-13 | 2020-04-21 | 华智算(广州)科技有限公司 | Resistance controllable heating plate along length direction and preparation process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050435A (en) * | 2020-01-13 | 2020-04-21 | 华智算(广州)科技有限公司 | Resistance controllable heating plate along length direction and preparation process thereof |
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