CN212903809U - Water cooling system of balance supporting rod - Google Patents
Water cooling system of balance supporting rod Download PDFInfo
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- CN212903809U CN212903809U CN202022295095.8U CN202022295095U CN212903809U CN 212903809 U CN212903809 U CN 212903809U CN 202022295095 U CN202022295095 U CN 202022295095U CN 212903809 U CN212903809 U CN 212903809U
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Abstract
The utility model discloses a water cooling system of a balance strut, which comprises a cooling water system, wherein the water flow output of the cooling water system respectively enters a strut water cooling structure and a balance water cooling structure after passing through a state controller, and then enters the cooling water system after circulating in the strut water cooling structure and the balance water cooling structure; the branch water-cooling structure comprises a rod body and a branch sleeve, the branch sleeve is sleeved on the rod body, the rod body comprises a coaxial equal-straight section and an expansion end, a plurality of water tanks are arranged on the surface of the equal-straight section and the expansion end along the axial direction, one end of any one water tank is communicated with one adjacent water tank, all the water tanks are sequentially communicated to form an S-shaped water path, and the branch sleeve is connected with the rod body in a sealing mode. The utility model discloses be two sets of water-cooling structures that are completely independent between branch and the balance, mutual noninterference each other, the water route in the branch can bear high pressure and high-speed rivers, realizes efficient water-cooling effect.
Description
Technical Field
The utility model relates to a wind-tunnel measurement field, concretely relates to water-cooling branch system that balance supported.
Background
The wind tunnel balance is a high-precision force measuring element, and the measuring precision of the wind tunnel balance directly influences the quality of wind tunnel test data. In a hypersonic wind tunnel, the air flow temperature is higher, so that higher requirements are made on the balance performance.
For a long time, balance designers always pay attention to the temperature effect problem of the balance, the influence of temperature on measurement in a test is reduced by carrying out temperature compensation, temperature correction and other methods on a balance measuring bridge, a water-cooled balance and a medium-temperature balance (a heat insulation sleeve and a water-cooled ring) and other modes are developed and designed in the structure and used for reducing the temperature effect of the balance, the water-cooled balance only carries out cooling treatment on balance elements, the water-cooled ring of the medium-temperature balance is arranged in a supporting rod and close to the place on the sky, the length of the water-cooled ring is generally 40mm, and the water-cooled balance is used for.
However, recent tests show that the temperature gradient existing on the upper surface and the lower surface of the balance support rod can influence the attack angle of the balance in the test process, and further influence the output of the balance. The water cooling ring is provided inside the strut, but has a limited cooling effect on the strut itself. The water cooling device is additionally arranged outside the supporting rod, the rear end of the water cooling device is fixed on the expanding section of the supporting rod, the front end of the water cooling device extends into the interior of the model to be suspended and covers the whole supporting rod, and the gap between the inner cavity of the water cooling device and the supporting rod is about 1 mm. The mode can effectively reduce the temperature gradient of the upper surface and the lower surface of the support rod, and has better universality.
However, after the device is added, the diameter of the supporting rod needs to be increased by at least 16mm, the diameter of the tail of the model has higher requirements, the diameter of the supporting rod has great influence on test data of the model from the pneumatic perspective, the data needs to be supported and interfered and corrected, and meanwhile, the water cooling mode can reduce the strength and rigidity of the supporting rod. Furthermore, in the case of aerodynamic forces, the outer water-cooling device may have a certain influence on the strut deformation, thereby influencing the accuracy of the strut elastic angle in this case.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cooling system who adjusts and full water-cooling branch is supplied with including the cooling water realizes having two tunnel water routes of intaking, can control temperature, water pressure and flow respectively, is applied to balance water-cooling jacket and water-cooling branch simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a water cooling system of a balance support rod comprises a cooling water system, wherein water flow output from the cooling water system passes through a state controller and then respectively enters a support rod water cooling structure and a balance water cooling structure, and then enters the cooling water system after circulating in the support rod water cooling structure and the balance water cooling structure;
the branch water-cooling structure comprises a rod body and a branch sleeve, the branch sleeve is sleeved on the rod body, the rod body comprises a coaxial equal-straight section and an expansion end, a plurality of water tanks are arranged on the surface of the equal-straight section and the expansion end along the axial direction, one end of any one water tank is communicated with one adjacent water tank, all the water tanks are sequentially communicated to form an S-shaped water path, and the branch sleeve and the rod body are connected into a whole in a sealing mode.
In the above technical scheme, the water tank is concave along the surface of the rod body.
In the technical scheme, the inner wall of the support rod sleeve is tightly attached to the surface of the rod body, and a closed cavity is formed between the water tank and the inner wall of the support rod sleeve.
In the above technical scheme, the end of the rod body part for separating the two water tanks is an arc-shaped end at one end where the adjacent water tanks are communicated with each other.
In the technical scheme, the cross section of the water tank perpendicular to the axis of the rod body is a sector section, and the radian of the sector section is outwards expanded.
In the technical scheme, the end face of the expansion end of the support rod is provided with two threaded holes which are respectively connected with the inlet and the outlet of the water channel, and the inlet and the outlet of the water channel are respectively provided with a filter.
In the above technical solution, the state controller includes a pressure controller, a temperature controller, and a flow controller.
In the technical scheme, the water flow enters the support rod water-cooling structure and the balance water-cooling structure after the water flow output end of the cooling water system is sequentially connected with the pressure controller, the temperature controller and the flow controller.
In the technical scheme, the water paths entering the support rod water cooling structure and the balance water cooling structure are independent water paths respectively, and the water paths in the support rod water cooling structure and the balance water cooling structure are not interfered with each other.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the water channel is arranged on the surface of the rod body, so that the water cooling system and the rod body are of an integral structure, the diameter of the rod body cannot be increased too much, and the influence of the rod body on the model in the aspect of pneumatic effect cannot be caused;
the cooling water channel is arranged on the rod body, so that water in the water channel can flow at high pressure and high speed due to the rigid bearing capacity of the rod body, the cooling effect of the rod body is increased, and meanwhile, the water cooling structure of the rod body is separated from the water cooling structure of the balance, so that the high-pressure and high-speed water flow on the rod body cannot influence the balance;
the filter is added, so that the influence of cold condensed scale in circulating water in the water channel of the rod body on the water channel can be effectively filtered, the water cooling effect is improved, and the risk of water channel blockage is reduced;
the temperature gradient change of the supporting rod in the test process is effectively reduced, and the defect that the elastic angle is influenced due to the temperature gradient on the surface of the supporting rod is reduced.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a water cooling system;
FIG. 2 is a schematic structural view of a strut;
wherein: 1 is a cooling water system, 2 is a pressure controller, 3 is a temperature controller, 4 is a flow controller, 5 is a support rod, 5-1 is a groove, 5-2 is a rod body, and 6 is a balance.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
As shown in fig. 1, the present embodiment includes a cooling water system 1, a pressure controller 2, a temperature controller 3, a flow controller 4, a support 5, and a balance 6, in the whole system, the cold water in the cooling water system 1 is divided into two paths after passing through the pressure controller 2, the temperature controller 3, and the flow controller 4, and enters the water cooling structures of the support 5 and the balance 6, respectively, and the water flowing out of the support 5 and the balance 6 flows back to the cooling water system 1.
In the embodiment, the structure of the strut 5 is as shown in fig. 2, and a plurality of grooves are dug in the surface of the rod body 5-2 along the circumferential direction of the strut in an end-to-end manner by adopting a traditional machining mode, so that all the grooves form a complete and closed-loop waterway. Then a rod body coaxial with the rod body is sleeved on the surface of the rod body of the supporting rod, the inner wall of the rod sleeve is completely attached to the outer surface of the rod body 5-2, a closed water path is formed between the rod body 5-2 and the rod sleeve by the groove 5-1, and cooling water enters the whole water path from an inlet of the closed water path to circulate and then flows out.
In this embodiment, the grooves of the strut rod 5-2, i.e. the water channel, are in a fan shape, i.e. the cross section along the axis perpendicular to the rod axis, the cross section of the whole water channel is in a fan shape, and the radius of the fan shape increases gradually from the inside to the outside. The water tank with the fan-shaped structure can increase the contact area of flowing water and the rod body 5-2 and improve the water cooling efficiency, and the fan-shaped structure is beneficial to improving the internal pressure of the flowing water so as to improve the water flow speed. Meanwhile, the intersection of two adjacent grooves is of an arc-shaped structure, so that the radius of a corner is increased, the internal water resistance is reduced, and the cooling effect is improved.
In this embodiment, after the fulcrum sleeve and the body of rod carried out sealing connection, adopt the welded mode to fix the fulcrum sleeve and the body of rod as an organic whole, process a water inlet and a delivery port on the body of rod, communicate with the both ends in water route respectively, realize the seal structure in whole water route.
In this embodiment, the strut 5 includes the equal straight section and the expansion end, the equal straight section and the expansion end are an organic whole structure, the surface thereof is provided with a groove along the axial direction, and the water inlet and the water outlet are respectively arranged on the end surface of the expansion end.
In this embodiment, considering the field water supply, there are more or less impurities in the water source, which may cause the cooling water to be condensed in the waterway and then block the waterway, so it is necessary to add a filtering device in the waterway. The water inlet and the water outlet of the embodiment are internally provided with tapered threads for connecting a filter, water in the cooling water system firstly enters the water path of the support rod after passing through the filter of the water inlet, then flows back to the cooling water system through the filter of the water outlet, and water is filtered ceaselessly in the circulating process. The problem that the cooling effect is influenced by the water scale condensed on the wall surface of the water chilling unit box body and the internal refrigerating pipe is effectively avoided by the two sets of filters, and meanwhile, the risk that the balance support rod and the balance internal water channel are blocked is also reduced.
In the embodiment, although the strut is used for supporting and connecting the balance, the water cooling structure of the balance and the water cooling structure of the strut are separated and independent from each other, the front cone of the strut is connected with the rear cone of the balance, the wedge is positioned by a flat key, and the wedge is tightened. The rear end of the supporting rod is connected with a bracket in the middle of the wind tunnel, and is positioned through a flat key and tightened through a bolt. Therefore, the whole support rod is a main stress unit, and a water path in the support rod can bear high water pressure and high flow rate, and the normal measurement precision of the balance cannot be influenced.
In this embodiment, the flow speed and pressure can be accurately controlled by the pressure controller 2, the temperature controller 3 and the flow controller 4, and the temperature in the branch water path is ensured to meet the test requirement.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (9)
1. A water cooling system of a balance support rod is characterized by comprising a cooling water system, wherein water flow output of the cooling water system respectively enters a support rod water cooling structure and a balance water cooling structure after passing through a state controller, and then enters the cooling water system after circulating in the support rod water cooling structure and the balance water cooling structure;
the branch water-cooling structure comprises a rod body and a branch sleeve, the branch sleeve is sleeved on the rod body, the rod body comprises a coaxial equal-straight section and an expansion end, a plurality of water tanks are arranged on the surface of the equal-straight section and the expansion end along the axial direction, one end of any one water tank is communicated with one adjacent water tank, all the water tanks are sequentially communicated to form an S-shaped water path, and the branch sleeve and the rod body are connected into a whole in a sealing mode.
2. The water cooling system for a balance bar according to claim 1, wherein the water tank is recessed along the surface of the bar body.
3. The water cooling system for the balance bar according to claim 2, wherein the inner wall of the bar sleeve is closely attached to the surface of the bar body, and a closed cavity is formed between the water tank and the inner wall of the bar sleeve.
4. The water cooling system for the balance bar according to claim 2, wherein the end of the rod portion separating the two water tanks is an arc-shaped end at the end where the adjacent water tanks communicate with each other.
5. The water cooling system for the balance staff of any one of claims 1 to 4, wherein the cross section of the water tank vertical staff axis is a sector section, and the radian of the sector section is expanded outwards.
6. The water cooling system of the balance support rod according to claim 1, wherein the end face of the expansion end of the support rod is provided with two threaded holes, the two threaded holes are respectively connected with the inlet and the outlet of the water channel, and the inlet and the outlet of the water channel are respectively provided with a filter.
7. The water cooling system for a balance bar according to claim 1, wherein the state controller comprises a pressure controller, a temperature controller and a flow controller.
8. The water cooling system for the balance support rod according to claim 7, wherein the water flow enters the support rod water cooling structure and the balance water cooling structure after the pressure controller, the temperature controller and the flow controller are sequentially connected from the water flow output end of the cooling water system.
9. The water cooling system for the balance rod according to claim 1, wherein the water paths entering the rod water cooling structure and the balance water cooling structure are independent water paths respectively, and the water paths in the rod water cooling structure and the balance water cooling structure do not interfere with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022295095.8U CN212903809U (en) | 2020-10-15 | 2020-10-15 | Water cooling system of balance supporting rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022295095.8U CN212903809U (en) | 2020-10-15 | 2020-10-15 | Water cooling system of balance supporting rod |
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| CN212903809U true CN212903809U (en) | 2021-04-06 |
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| CN202022295095.8U Active CN212903809U (en) | 2020-10-15 | 2020-10-15 | Water cooling system of balance supporting rod |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109016A (en) * | 2021-04-21 | 2021-07-13 | 重庆大学 | Device for simulating temperature change of skyhook in supersonic wind tunnel test |
| CN113267312A (en) * | 2021-07-19 | 2021-08-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Test model for high-temperature wind tunnel |
| CN113267320A (en) * | 2021-07-19 | 2021-08-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Water cooling device for rod type balance of high-temperature wind tunnel |
| CN113280995A (en) * | 2021-07-19 | 2021-08-20 | 中国空气动力研究与发展中心超高速空气动力研究所 | Cooling device for high-temperature wind tunnel model |
| CN113607375A (en) * | 2021-06-26 | 2021-11-05 | 成都凯迪精工科技有限责任公司 | Wind tunnel model balance heat insulation system |
-
2020
- 2020-10-15 CN CN202022295095.8U patent/CN212903809U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109016A (en) * | 2021-04-21 | 2021-07-13 | 重庆大学 | Device for simulating temperature change of skyhook in supersonic wind tunnel test |
| CN113109016B (en) * | 2021-04-21 | 2022-10-11 | 重庆大学 | Device for simulating temperature change of skyhook in supersonic wind tunnel test |
| CN113607375A (en) * | 2021-06-26 | 2021-11-05 | 成都凯迪精工科技有限责任公司 | Wind tunnel model balance heat insulation system |
| CN113607375B (en) * | 2021-06-26 | 2023-11-17 | 成都凯迪精工科技有限责任公司 | Wind tunnel model balance heat insulation system |
| CN113267312A (en) * | 2021-07-19 | 2021-08-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Test model for high-temperature wind tunnel |
| CN113267320A (en) * | 2021-07-19 | 2021-08-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Water cooling device for rod type balance of high-temperature wind tunnel |
| CN113280995A (en) * | 2021-07-19 | 2021-08-20 | 中国空气动力研究与发展中心超高速空气动力研究所 | Cooling device for high-temperature wind tunnel model |
| CN113267320B (en) * | 2021-07-19 | 2021-09-28 | 中国空气动力研究与发展中心超高速空气动力研究所 | Water cooling device for rod type balance of high-temperature wind tunnel |
| CN113280995B (en) * | 2021-07-19 | 2022-02-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Cooling device for high-temperature wind tunnel model |
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