CN210293694U - Rectification grid for large temperature difference environment - Google Patents
Rectification grid for large temperature difference environment Download PDFInfo
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- CN210293694U CN210293694U CN201921065108.3U CN201921065108U CN210293694U CN 210293694 U CN210293694 U CN 210293694U CN 201921065108 U CN201921065108 U CN 201921065108U CN 210293694 U CN210293694 U CN 210293694U
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- grid
- large temperature
- rectification grid
- rectification
- temperature differential
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Abstract
The utility model relates to a rectification grid for big difference in temperature environment, its characterized in that: this rectification grid includes mount and grid, the both ends of mount are welding end and link respectively, and the intermediate part is crooked form, welding end and the welding of passageway inner wall, the link passes through the detachable connection of connecting piece with the grid. The utility model discloses connection structure is simple, does not need the external fitting, can adapt to heat altered shape, and simple to operate, and the installation is dismantled simply, and fixed frame sets up by the inflation is curved, but small displacement, absorbs self heat altered shape.
Description
Technical Field
The utility model discloses to super-large-scale, poor test equipment rectifier grid mounting means demand of high temperature, avoid providing a large-scale test equipment rectifier grid mounting means because of the rectifier grid thermal stress concentration phenomenon that the difference in temperature leads to, widen grid application scope, be applied to super-large-scale, poor test equipment of high temperature, have wide market space
Background
The grid is used as an important part for airflow rectification and is widely applied to various gas test equipment. The existing main cross-section forms of circle, square and hexagon are adopted, and the fixing mode is mostly a welding fixing mode. Along with test equipment relates to the operating mode and is complicated gradually, required rectification air current temperature change grow, and corresponding traditional welding fixed form though can provide effectual support, but this fixed mode can't adapt to the temperature difference stress concentration phenomenon that the high difference in temperature brought.
The grid fixing mode also provides a flexible supporting mode for the situation, the radial expansion of the grid can be met through the flexible supporting, so that the local stress concentration is reduced, but the corresponding supporting structure is more complex
Disclosure of Invention
The purpose of the invention is as follows: on the premise of ensuring the structure function, the reliable connection of the grids is ensured, and the pneumatic load of the grids can be overcome; on the premise of ensuring the structure function, the grid can be ensured to be free to expand, and the temperature difference stress concentration is avoided;
technical scheme
The utility model provides a rectification grid for big difference in temperature environment, for example, aeroengine high altitude simulation test bed inlet channel rectification grid, this rectification grid includes mount and grid, the both ends of mount are weld end and link respectively, and the mid portion is crooked form, weld end and the welding of passageway inner wall, the link passes through the detachable connection of connecting piece with the grid. The utility model discloses a structure is heated the back, the mid portion is heated the back and is warp the displacement, and the grid can expand at the certain limit, but the grid of thermal deformation can not produce stress concentration at the welding end, protection weld zone stress environment.
Furthermore, the fixing frame is a metal sheet, a metal strip or a metal rod.
Furthermore, the fixing frame is made of a high-temperature-resistant metal material or a high-temperature-resistant composite material. Preferably stainless steel.
Further, the middle portion is curved in an arc shape.
Further, the connecting piece is a bolt assembly.
Further, the connecting piece is a clamp or a hook.
The technical effects are as follows: the connecting structure is simple, does not need external accessories, can adapt to thermal deformation, is convenient to mount and dismount, and the fixed frame is arranged by the expansion bend, can displace slightly and absorbs the thermal deformation of the fixed frame.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the grille mounted to the intake passage;
wherein: 1-air inlet channel, 2-fixing frame and 3-grid.
Detailed Description
Embodiment 1, referring to fig. 1, specifically provides a rectifying grid for a large temperature difference environment, where the rectifying grid includes a fixing frame and a grid, two ends of the fixing frame are respectively a welding end and a connecting end, a middle portion of the fixing frame is curved, the welding end is welded to an inner wall of a channel, and the connecting end is detachably connected to the grid through a connecting piece.
The fixing frame is a metal strip.
The fixing frame is made of high-temperature-resistant metal materials or high-temperature-resistant composite materials.
The middle portion is arc-shaped and curved.
The connecting piece is a hoop component.
The fixing frame is a metal sheet.
The fixing frame is made of stainless steel.
The middle portion is arc-shaped and curved.
The connecting piece is a bolt assembly.
Claims (8)
1. A rectification grid for a large temperature difference environment, characterized in that: this rectification grid includes mount and grid, the both ends of mount are welding end and link respectively, and the intermediate part is crooked form, welding end and the welding of passageway inner wall, the link passes through the detachable connection of connecting piece with the grid.
2. A rectification grid for use in large temperature differential environments as claimed in claim 1, wherein: the middle portion is arc-shaped and curved.
3. A rectification grid for use in large temperature differential environments as claimed in claim 1, wherein: the fixing frame is a metal sheet, a metal strip or a metal rod.
4. A rectification grid for use in large temperature differential environments as claimed in claim 1, wherein: the fixing frame is made of high-temperature-resistant metal materials or high-temperature-resistant composite materials.
5. A rectification grid for use in large temperature differential environments as claimed in claim 4, wherein: the fixing frame is made of stainless steel.
6. A rectification grid for use in large temperature differential environments as claimed in claim 1, wherein: the connecting piece is a bolt assembly.
7. A rectification grid for use in large temperature differential environments as claimed in claim 1, wherein: the rectification grid for the large temperature difference environment is a rectification grid of an air inlet channel of an aerial engine high-altitude simulation test bed.
8. A rectification grid for use in large temperature differential environments as claimed in claim 1, wherein: the connecting piece is a hoop or a hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921065108.3U CN210293694U (en) | 2019-07-09 | 2019-07-09 | Rectification grid for large temperature difference environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921065108.3U CN210293694U (en) | 2019-07-09 | 2019-07-09 | Rectification grid for large temperature difference environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210293694U true CN210293694U (en) | 2020-04-10 |
Family
ID=70101449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921065108.3U Active CN210293694U (en) | 2019-07-09 | 2019-07-09 | Rectification grid for large temperature difference environment |
Country Status (1)
| Country | Link |
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| CN (1) | CN210293694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931368A (en) * | 2023-03-09 | 2023-04-07 | 中国航发四川燃气涡轮研究院 | Flow field uniform device capable of adapting to use environment and used for improving air inlet quality |
-
2019
- 2019-07-09 CN CN201921065108.3U patent/CN210293694U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931368A (en) * | 2023-03-09 | 2023-04-07 | 中国航发四川燃气涡轮研究院 | Flow field uniform device capable of adapting to use environment and used for improving air inlet quality |
| CN115931368B (en) * | 2023-03-09 | 2023-06-30 | 中国航发四川燃气涡轮研究院 | Flow field uniformity device for improving air intake quality and self-adapting use environment |
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