CN118243332A - Wind tunnel main heat exchanger support - Google Patents
Wind tunnel main heat exchanger support Download PDFInfo
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- CN118243332A CN118243332A CN202410671447.5A CN202410671447A CN118243332A CN 118243332 A CN118243332 A CN 118243332A CN 202410671447 A CN202410671447 A CN 202410671447A CN 118243332 A CN118243332 A CN 118243332A
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- heat exchanger
- support
- main heat
- wind tunnel
- spring
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 239000011800 void material Substances 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to the technical field of large wind tunnel construction, and discloses a wind tunnel main heat exchanger support. The wind tunnel main heat exchanger support comprises an inner layer forming shell sleeved on the main heat exchanger, an outer layer pressure-bearing shell sleeved on the inner layer forming shell, and a reinforcing ring rib is arranged between the inner layer forming shell and the outer layer pressure-bearing shell; comprises a supporting circular ring fixed on the bottom surface of the main heat exchanger; the heat exchanger also comprises a plurality of uniformly distributed supports supported below the supporting circular ring and spring supports supported below the outlet pipeline and the inlet pipeline of the main heat exchanger. The wind tunnel main heat exchanger support is used for supporting a large continuous type cross supersonic wind tunnel main heat exchanger, so that the problem of support void caused by uneven temperature expansion of the main heat exchanger support can be effectively reduced, the energy of impact loads such as earthquake can be consumed to a certain extent through deformation of a spring, and the impact on a large wind tunnel structure is reduced.
Description
Technical Field
The invention belongs to the technical field of large wind tunnel construction, and particularly relates to a wind tunnel main heat exchanger support.
Background
With the development of national aerospace, the test demands on weapon models and the like are also increasing; the main compressor of the continuous cross supersonic wind tunnel has higher running power, and the temperature of the air flow in the tunnel body at the outlet of the main compressor is higher. In order to avoid influencing the test effect of the continuous cross supersonic wind tunnel and reduce the thermal stress caused by heat exchange between each section of the continuous cross supersonic wind tunnel and the airflow, a main heat exchanger is arranged on a main loop of the tunnel body. When the high-temperature air flows through the main heat exchanger, heat exchange is needed to be carried out with the heat exchange module in the main heat exchanger, and the temperature of the high-temperature air is reduced to an appropriate temperature required by the test.
Because the continuous type cross supersonic wind tunnel needs stronger heat exchange capability, the overall structure size of the heat exchange module of the continuous type cross supersonic wind tunnel is larger, so that the cross section size of the middle part of the main heat exchanger where the heat exchange module is positioned is larger, and the cross section size of the inlet and the outlet is smaller. The heat exchange module has different temperatures of the air flow before and after the heat exchange module, so that the structural deformation caused by the heat exchange is different. The cross section size of the center of the main heat exchanger is maximum, and the deformation caused by thermal expansion is also maximum; the cross section of the inlet and outlet of the main heat exchanger is smaller, and the deformation caused by thermal expansion is smaller. That is, the deformation of the main heat exchanger is not consistent, the middle part is large, the deformation of the two ends of the inlet and the outlet is small, and the support arranged at the inlet and the outlet can be separated from the foundation, namely, the phenomenon of 'void'. In addition, the phenomenon of 'void' of the inlet and outlet support can lead to the fact that all the weight of the main heat exchanger is borne by the center support, and the center support can be damaged, so that a large accident is generated.
In the traditional method, the number of the encrypted supports is often adopted, or the size of the supports is increased, or the rigidity of the supports is enhanced, so that the bearing capacity is improved, and the phenomenon of 'void' is solved. However, the method directly increases the economic cost, and meanwhile, the problem of 'void' of the support cannot be fundamentally solved.
Currently, there is a need to develop a wind tunnel primary heat exchanger support.
Disclosure of Invention
The invention aims to provide a wind tunnel main heat exchanger support.
The main heat exchanger is internally provided with a mounting platform, and the heat exchange module is fixed on the upper surface of the mounting platform. The wind tunnel main heat exchanger support comprises an inner layer forming shell sleeved on a main heat exchanger, an outer layer pressure-bearing shell sleeved on the inner layer forming shell, and a reinforcing ring rib arranged between the inner layer forming shell and the outer layer pressure-bearing shell; comprises a supporting circular ring fixed on the bottom surface of the main heat exchanger; the device also comprises a plurality of uniformly distributed supports supported below the supporting circular ring and spring supports supported below the outlet pipeline and the inlet pipeline of the main heat exchanger, wherein the upper surfaces of the spring supports are provided with arc-shaped backing plates matched with the outlet pipeline and the inlet pipeline of the main heat exchanger;
The outer layer pressure-bearing shell and the reinforcing ring rib bear the weight of the heat exchange module, the mounting platform and the inner layer forming shell and the weight of the reinforcing ring rib, more than 60% of the weight is transmitted to the foundation through the support, the rest weight is transmitted to the foundation through the spring support, and the spring support also counteracts the support 'void' phenomenon caused by uneven temperature expansion of the main heat exchanger.
Further, the support comprises a top plate and a bottom plate, wherein the top plate is supported on the lower surface of the supporting circular ring, the bottom plate is supported on the foundation, and the top plate and the bottom plate are fixedly connected through vertical ribs and transverse ribs in a welding mode; if the supporting circular ring is an arc circular ring, the top plate is an arc plate matched with the arc circular ring, and if the supporting circular ring is a plane circular ring, the top plate is a flat plate matched with the plane circular ring.
Further, the support is a multidirectional sliding support, a unidirectional guide support or a cross-shaped limiting support.
Further, the supports are symmetrically distributed or diamond-shaped.
Further, the spring support is divided into two parts, wherein the upper part is the support, the lower part is the spring, and the spring is arranged between the bottom plate of the support and the top plate of the foundation.
Further, the spring support is a multidirectional sliding spring support, and the bottom plate of the support and the top plate of the foundation slide mutually so as to ensure that the thermal deformation of the main heat exchanger is effectively released.
Further, the spring support is provided with precompression, the precompression amount is determined according to the design bearing capacity of the spring support, the design travel of the spring support is larger than the temperature expansion amount of the main heat exchanger, and the foundation is guaranteed to be in a pressed state under different working conditions.
Further, the spring support is supported at a front section below the outlet pipe and a rear section below the inlet pipe of the main heat exchanger, so that the influence of thermal deformation of the main heat exchanger on the spring support is reduced.
The wind tunnel main heat exchanger support is used for supporting the large continuous type cross supersonic wind tunnel main heat exchanger, can effectively reduce the problem of support void caused by uneven temperature expansion of the main heat exchanger support, can consume the energy of impact loads such as earthquake and the like to a certain extent through the deformation of a spring, and reduces the impact on a large continuous type cross supersonic wind tunnel structure.
Drawings
FIG. 1 is a schematic view (front view) of a wind tunnel main heat exchanger support of the present invention;
FIG. 2 is a schematic view (bottom view) of the wind tunnel main heat exchanger mount of the present invention;
Fig. 3 is a schematic view (left side view) of the wind tunnel main heat exchanger support of the present invention.
In the figure, 1. An outer pressure-bearing shell; 2. forming a shell on the inner layer; 3. a spring support; 4. a support; 5. reinforcing the ring rib; 6. a heat exchange module; 7. an arc-shaped backing plate; 8. a support ring; 9. and (5) installing a platform.
Detailed Description
The invention is described in detail below with reference to the drawings and examples.
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Example 1:
The wind tunnel main heat exchanger support is used for a continuous wind tunnel, the continuous wind tunnel drives an axial flow compressor unit through a motor unit to generate stable and controllable air flow in a closed loop, and aerodynamic force tests are carried out in a specific test section by utilizing the principles of motion relativity and air flow similarity. The spring support 3 in the wind tunnel main heat exchanger support can compensate displacement offset of 80 mm-80 mm in the vertical direction, can adapt to structural deformation of the main heat exchanger in the range of 50 mm-50 mm in the vertical direction, and solves the problem of 'void' of the main heat exchanger support. The specific implementation process is as follows:
A mounting platform 9 is arranged in the main heat exchanger, and the heat exchange module 6 is fixed on the upper surface of the mounting platform 9; as shown in fig. 1-3, the wind tunnel main heat exchanger support of the embodiment comprises an inner layer forming shell 2 sleeved on a main heat exchanger, an outer layer pressure-bearing shell 1 sleeved on the inner layer forming shell 2, and a reinforcing ring rib 5 arranged between the inner layer forming shell 2 and the outer layer pressure-bearing shell 1; comprises a supporting circular ring 8 fixed on the bottom surface of the main heat exchanger; the heat exchanger also comprises a plurality of uniformly distributed supports 4 supported below the supporting circular ring 8 and a spring support 3 supported below the outlet pipeline and the inlet pipeline of the main heat exchanger, wherein an arc-shaped base plate 7 matched with the outlet pipeline and the inlet pipeline of the main heat exchanger is arranged on the upper surface of the spring support 3;
The outer layer pressure-bearing shell 1 and the reinforcing ring rib 5 bear the weight of the heat exchange module 6, the mounting platform 9 and the inner layer forming shell 2 and the weight of the reinforcing ring rib, more than 60% of the weight is transmitted to the foundation through the support 4, the rest weight is transmitted to the foundation through the spring support 3, and the spring support 3 also counteracts the support 'void' phenomenon caused by uneven temperature expansion of the main heat exchanger.
Further, the support 4 comprises a top plate and a bottom plate, the top plate is supported on the lower surface of the supporting circular ring 8, the bottom plate is supported on the foundation, and the top plate and the bottom plate are fixedly connected through vertical ribs and transverse ribs in a welding mode; if the supporting ring 8 is an arc ring, the top plate is an arc plate matched with the arc ring, and if the supporting ring 8 is a plane ring, the top plate is a flat plate matched with the plane ring.
Further, the support 4 is a multidirectional sliding support, a unidirectional guiding support or a cross-shaped limiting support.
Further, the supports 4 are symmetrically distributed or diamond-shaped.
Further, the spring support 3 is divided into two parts, the upper part is a support 4, the lower part is a spring, and the spring is arranged between the bottom plate of the support 4 and the top plate of the foundation.
Further, the spring support 3 is a multi-directional sliding spring support, and the bottom plate of the support 4 and the top plate of the foundation are mutually slid so as to ensure that the thermal deformation of the main heat exchanger is effectively released.
Further, the spring support 3 is provided with precompression, the precompression amount is determined according to the design bearing capacity of the spring support 3, the design travel of the spring support 3 is larger than the temperature expansion amount of the main heat exchanger, and the foundation is guaranteed to be in a pressed state under different working conditions.
Further, the spring support 3 is supported at a front section below the outlet pipe and a rear section below the inlet pipe of the main heat exchanger, so as to reduce the influence of thermal deformation of the main heat exchanger on the spring support 3.
Claims (8)
1. The wind tunnel main heat exchanger support is characterized in that a mounting platform (9) is arranged in a main heat exchanger, and a heat exchange module (6) is fixed on the upper surface of the mounting platform (9); the wind tunnel main heat exchanger support comprises an inner layer forming shell (2) sleeved on the main heat exchanger, an outer layer pressure-bearing shell (1) sleeved on the inner layer forming shell (2), and a reinforcing ring rib (5) is arranged between the inner layer forming shell (2) and the outer layer pressure-bearing shell (1); comprises a supporting circular ring (8) fixed on the bottom surface of the main heat exchanger; the heat exchanger further comprises a plurality of uniformly distributed supports (4) supported below the supporting circular ring (8), and spring supports (3) supported below the outlet pipeline and the inlet pipeline of the main heat exchanger, wherein an arc-shaped base plate (7) matched with the outlet pipeline and the inlet pipeline of the main heat exchanger is arranged on the upper surface of the spring supports (3);
The outer layer pressure-bearing shell (1) and the reinforcing ring rib (5) bear the weight and self weight of the heat exchange module (6), the mounting platform (9) and the inner layer forming shell (2), more than 60% of the weight is transferred to the foundation through the support (4), the rest weight is transferred to the foundation through the spring support (3), and the spring support (3) also counteracts the support 'void' phenomenon caused by uneven temperature expansion of the main heat exchanger.
2. A wind tunnel main heat exchanger support according to claim 1, wherein the support (4) comprises a top plate and a bottom plate, the top plate is supported on the lower surface of the supporting ring (8), the bottom plate is supported on the foundation, and the top plate and the bottom plate are fixedly connected by vertical ribs and transverse ribs in a welding manner; if the supporting circular ring (8) is an arc circular ring, the top plate is an arc plate matched with the arc circular ring, and if the supporting circular ring (8) is a plane circular ring, the top plate is a flat plate matched with the plane circular ring.
3. A wind tunnel main heat exchanger support according to claim 1, wherein the support (4) is a multidirectional sliding support, a unidirectional guiding support or a cross-shaped limiting support.
4. A wind tunnel main heat exchanger support according to claim 1, wherein the support (4) is symmetrically or rhombically arranged from front to back.
5. A wind tunnel main heat exchanger support according to claim 1, wherein the spring support (3) is divided into two parts, the upper part being the support (4) and the lower part being a spring, the spring being arranged between the bottom plate of the support (4) and the top plate of the foundation.
6. A wind tunnel main heat exchanger support according to claim 5, wherein the spring support (3) is a multi-directional sliding spring support, the bottom plate of the support (4) and the top plate of the foundation sliding with each other.
7. A wind tunnel main heat exchanger support according to claim 5, wherein the spring support (3) has a pre-compression, the amount of pre-compression is determined according to the design bearing capacity of the spring support (3), the design travel of the spring support (3) is larger than the temperature expansion amount of the main heat exchanger, and the foundation is ensured to be in a compressed state under different working conditions.
8. A wind tunnel main heat exchanger support according to claim 1, wherein the spring support (3) is supported in a front section below the main heat exchanger outlet duct and in a rear section below the inlet duct to reduce the influence of thermal deformations of the main heat exchanger on the spring support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410671447.5A CN118243332B (en) | 2024-05-28 | 2024-05-28 | Wind tunnel main heat exchanger support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410671447.5A CN118243332B (en) | 2024-05-28 | 2024-05-28 | Wind tunnel main heat exchanger support |
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| Publication Number | Publication Date |
|---|---|
| CN118243332A true CN118243332A (en) | 2024-06-25 |
| CN118243332B CN118243332B (en) | 2024-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410671447.5A Active CN118243332B (en) | 2024-05-28 | 2024-05-28 | Wind tunnel main heat exchanger support |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015090334A (en) * | 2013-11-07 | 2015-05-11 | 住友精密工業株式会社 | Wind tunnel test method and wind tunnel test device used therefor |
| WO2016174209A1 (en) * | 2015-04-30 | 2016-11-03 | Madrid Fly, S.L | Exchanger for a wind tunnel |
| US20210285725A1 (en) * | 2018-06-29 | 2021-09-16 | National University Of Singapore | Heat exchange unit and method of manufacture thereof |
| CN216279736U (en) * | 2021-11-08 | 2022-04-12 | 中国天辰工程有限公司 | Elastic combined support of equipment |
| CN115070363A (en) * | 2022-08-23 | 2022-09-20 | 中国航空工业集团公司沈阳空气动力研究所 | Method for mounting large wind tunnel heat exchanger shell |
| CN115493796A (en) * | 2022-11-17 | 2022-12-20 | 中国航空工业集团公司哈尔滨空气动力研究所 | Installation and fixation method of large-size wind tunnel heat exchanger |
| CN116718065A (en) * | 2023-08-09 | 2023-09-08 | 中国空气动力研究与发展中心高速空气动力研究所 | Water-cooling pipeline installation method for controlling air temperature uniformity of large continuous wind tunnel |
-
2024
- 2024-05-28 CN CN202410671447.5A patent/CN118243332B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015090334A (en) * | 2013-11-07 | 2015-05-11 | 住友精密工業株式会社 | Wind tunnel test method and wind tunnel test device used therefor |
| WO2016174209A1 (en) * | 2015-04-30 | 2016-11-03 | Madrid Fly, S.L | Exchanger for a wind tunnel |
| US20210285725A1 (en) * | 2018-06-29 | 2021-09-16 | National University Of Singapore | Heat exchange unit and method of manufacture thereof |
| CN216279736U (en) * | 2021-11-08 | 2022-04-12 | 中国天辰工程有限公司 | Elastic combined support of equipment |
| CN115070363A (en) * | 2022-08-23 | 2022-09-20 | 中国航空工业集团公司沈阳空气动力研究所 | Method for mounting large wind tunnel heat exchanger shell |
| CN115493796A (en) * | 2022-11-17 | 2022-12-20 | 中国航空工业集团公司哈尔滨空气动力研究所 | Installation and fixation method of large-size wind tunnel heat exchanger |
| CN116718065A (en) * | 2023-08-09 | 2023-09-08 | 中国空气动力研究与发展中心高速空气动力研究所 | Water-cooling pipeline installation method for controlling air temperature uniformity of large continuous wind tunnel |
Non-Patent Citations (2)
| Title |
|---|
| 窦伟: "风冷换热器换热温差对结霜的影响", 中国优秀硕士学位论文全文数据库工程科技Ⅱ辑, no. 11, 15 November 2020 (2020-11-15), pages 039 - 18 * |
| 赵波 等: "大型连续式高速风洞热交换器设计关键技术研究", 实验流体力学, vol. 36, no. 05, 15 October 2022 (2022-10-15), pages 16 - 23 * |
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| CN118243332B (en) | 2024-07-16 |
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