CN203024954U - Frame bent device for flow field test of wind tunnel - Google Patents
Frame bent device for flow field test of wind tunnel Download PDFInfo
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- CN203024954U CN203024954U CN 201320010451 CN201320010451U CN203024954U CN 203024954 U CN203024954 U CN 203024954U CN 201320010451 CN201320010451 CN 201320010451 CN 201320010451 U CN201320010451 U CN 201320010451U CN 203024954 U CN203024954 U CN 203024954U
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- flow field
- wind tunnel
- steel pipe
- circular steel
- screw
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Abstract
The utility model discloses a frame bent device for a flow field test of a wind tunnel. A circular steel plate is welded at one end of a circular steel pipe, a nut is welded at the other end of the circular steel pipe, a screw is inserted into the circular steel pipe through the nut, the screw and the nut form a spiral pair, another circular steel plate is welded at the head part of the screw, and more than two air tunnel flow field test components which are same in structure are arranged on the circular steel pipes in the two circular steel plates to form the frame bent device; and each circular steel pipe is hooped by two semicircular steel hoops of each wind tunnel flow field testing component which is the same in structure, rubber support pipes are arranged on one semicircular steel hoop through connecting pieces, a pilot hole and a static vent which are formed in one end of each rubber support pipe are respectively connected with pressure testing equipment through rubber pipes, and a probe is arranged at the other end of each rubber support pipe. The frame bent device can be vertically or horizontally arranged at a designated position in a testing section of the wind tunnel according to the debugging requirement of the flow field of the wind tunnel; the mounting position of each rubber support pipe can be adjusted as required; and the precision and efficiency of flow field testing can be greatly improved.
Description
Technical field
The utility model relates to the test unit of Structural Wind Engineering technical field, especially relates to a kind of bent device of Flow Field in Wind Tunnel test.
Background technology
The Flow Field in Wind Tunnel debugging is the prerequisite of carrying out the research of building structure wind resistance, and in test chamber, the wind speed profile of differing heights directly affects the accuracy of wind tunnel test.Pitot tube is the most common sensor of test mean wind speed, adopt pressure instrumentataion test pitot tube stagnation pressure and static pressure can obtain mean wind speed, wind speed profile along height in wind-tunnel needs to adopt many pitot tubes to carry out synchronism detection, therefore be necessary to develop the device be used to many pitot tubes are installed, should guarantee the fastness that pitot tube is installed, can regulate according to testing requirements again.Regrettably the most domestic wind-tunnel does not all have a cover can be used for installing more neatly the device of many pitot tubes at present, artificial changed test height in flow field debugging, obtaining not is the wind speed profile of synchronism detection, has a strong impact on precision and the efficient of flow field debugging.
Summary of the invention
The purpose of this utility model is to provide a kind of bent device of Flow Field in Wind Tunnel test, can be used for many pitot tubes are installed, thereby lay the foundation for carrying out the flow field synchronism detection.
The technical scheme that its technical matters that solves the utility model adopts is:
The utility model is at circular steel plate of round steel pipe one end vertical welding, other end coaxial welding nut, and screw inserts in round steel pipe by nut, and screw and nut consist of screw pair, the circular steel plate of another piece of screw head vertical welding; Round steel pipe in two circular steel plates is installed two identical Flow Field in Wind Tunnel test components of above structure and is consisted of bent device; The Flow Field in Wind Tunnel test component that each structure is identical includes: two semicircles annular stirrup, pitot tube; Two semicircles annular stirrup forms an annular stirrup by the screw banding at two ends on round steel pipe, pitot tube vertical circular steel pipe is arranged on a semicircle annular stirrup by web member, the pitot hole of pitot tube one end is connected with pressure instrumentataion by leather hose respectively with baroport, and the pitot tube other end is probe.
Described Flow Field in Wind Tunnel test component quantity arranges according to the experiment situation, and the distance between the Flow Field in Wind Tunnel test component equidistantly or not equidistantly is arranged on round steel pipe according to the experiment situation.
The probe of described all pitot tubes is towards all identical, and all center probes are identical to the centre distance of round steel pipe.
Have four circular holes on a described circular steel plate that is not welded with screw, be welded with ribbed stiffener between a described circular steel plate and round steel pipe.
The beneficial effects of the utility model are:
The utility model can be according to the requirement of Flow Field in Wind Tunnel debugging, and vertical or level is installed on the assigned address of test chamber, and the installation site of each pitot tube can be regulated according to test request, and this device can improve precision and the efficient of flow-field test greatly.
Description of drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is A-A sectional view of the present utility model.
Fig. 3 is B-B sectional view of the present utility model.
Fig. 4 is C-C sectional view of the present utility model.
Fig. 5 is enforcement illustration of the present utility model.
In figure: 1, round steel pipe, 2, ribbed stiffener, 3, circular steel plate, 4, nut, 5, screw, 6, circular steel plate, 7, two semicircles annular stirrups, 8, screw, 9, the annular stirrup, 10, pitot tube, 11, pitot hole, 12, baroport, 13, leather hose, 14, probe, 15, circular hole, 16, test section base plate, 17, the test section top board.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model is at circular steel plate 3 of round steel pipe 1 one end vertical welding, and other end coaxial welding nut 4, screw 5 pass through nut 4 and insert in round steel pipe 1, screw 5 consists of screw pair with nut 4, the circular steel plate 6 of another piece of screw 5 head vertical weldings; Round steel pipe 1 in two circular steel plates is installed two identical Flow Field in Wind Tunnel test components of above structure and is consisted of bent device; The Flow Field in Wind Tunnel test component that each structure is identical includes: two semicircles annular stirrup 7, pitot tube 10; Two semicircles annular stirrup 7 forms an annular stirrup 9 by screw 8 bandings at two ends on round steel pipe 1, pitot tube 10 vertical circular steel pipes 1 are arranged on a semicircle annular stirrup 7 by web member, the pitot hole 11 of pitot tube 10 1 ends is connected with pressure instrumentataion by leather hose 13 respectively with baroport 12, and pitot tube 10 other ends are probe 14.
Described Flow Field in Wind Tunnel test component quantity arranges according to the experiment situation, and the distance between the Flow Field in Wind Tunnel test component equidistantly or not equidistantly is arranged on round steel pipe 1 according to the experiment situation.
As shown in Figure 2, the probe 14 of described all pitot tubes 10 is towards all identical, and all 14 centers of popping one's head in are identical to the centre distance of round steel pipe 1.
As Fig. 1, shown in Figure 4, have four circular holes 15 on a described circular steel plate 3 that is not welded with screw 5, a described circular steel plate 3 and 1 of round steel pipe are welded with ribbed stiffener 2.
Embodiment:
Now take the test of ten measuring points in the vertical flow field of wind-tunnel as example illustrates using method of the present utility model.
as shown in Figure 5, at first will install circular steel plate 3 and stand on the test chamber assigned address down, adopt screw that circular steel plate 3 is fixed on test section base plate 16, with spanner turn screw 5 heads, the circular steel plate 6 of another piece is held out against test section top board 17, ten Flow Field in Wind Tunnel test components that structure is identical are installed on round steel pipe 1, and guarantee that the distance between each Flow Field in Wind Tunnel test component satisfies the requirement of flow-field test, and the probe 14 that guarantees all pitot tubes 10 is all towards the flow path direction that comes of wind, and 14 centers of popping one's head in are identical to the distance at round steel pipe 1 center, the pitot hole 11 of each pitot tube 10 is connected with pressure instrumentataion by leather hose 13 respectively with baroport 12, open blasting, by the stagnation pressure of each pitot tube 13 of recording and the mean wind speed that static pressure calculates 14 positions of respectively popping one's head in.
Above-mentioned embodiment is used for illustrating the utility model; rather than the utility model is limited; in the protection domain of spirit of the present utility model and claim, any modifications and changes to the utility model is made all fall into protection domain of the present utility model.
Claims (4)
1. the bent device of Flow Field in Wind Tunnel test, it is characterized in that: at a round steel pipe circular steel plate of (1) one end vertical welding (3), other end coaxial welding nut (4), screw (5) inserts in round steel pipe (1) by nut (4), screw (5) consists of screw pair with nut (4), the circular steel plate (6) of another piece of screw (5) head vertical welding; Round steel pipe (1) in two circular steel plates is installed two identical Flow Field in Wind Tunnel test components of above structure and is consisted of bent device; The Flow Field in Wind Tunnel test component that each structure is identical includes: two semicircles annular stirrup (7), pitot tube (10); Two semicircle annular stirrups (7) upward form an annular stirrup (9) by screw (8) banding at two ends in round steel pipe (1), pitot tube (10) vertical circular steel pipe (1) is arranged on a semicircle annular stirrup (7) by web member, the pitot hole (11) of pitot tube (10) one ends is connected with pressure instrumentataion by leather hose (13) respectively with baroport (12), and pitot tube (10) other end is probe (14).
2. the bent device of a kind of Flow Field in Wind Tunnel test according to claim 1, it is characterized in that: described Flow Field in Wind Tunnel test component quantity arranges according to the experiment situation, and the distance between the Flow Field in Wind Tunnel test component equidistantly or not equidistantly is arranged on round steel pipe (1) according to the experiment situation.
3. the bent device of a kind of Flow Field in Wind Tunnel test according to claim 1, it is characterized in that: the probe (14) of described all pitot tubes (10) is towards all identical, and all probes (14) center is identical to the centre distance of round steel pipe (1).
4. the bent device of a kind of Flow Field in Wind Tunnel test according to claim 1, it is characterized in that: have four circular holes (15) on a described circular steel plate (3) that is not welded with screw (5), be welded with ribbed stiffener (2) between a described circular steel plate (3) and round steel pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010451 CN203024954U (en) | 2013-01-09 | 2013-01-09 | Frame bent device for flow field test of wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010451 CN203024954U (en) | 2013-01-09 | 2013-01-09 | Frame bent device for flow field test of wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203024954U true CN203024954U (en) | 2013-06-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320010451 Expired - Fee Related CN203024954U (en) | 2013-01-09 | 2013-01-09 | Frame bent device for flow field test of wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203024954U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063399A (en) * | 2013-01-09 | 2013-04-24 | 浙江大学 | Framed bent device for wind tunnel flow field |
| CN104340377A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Static vent shaping bulge of light airplane |
| CN108020397A (en) * | 2017-12-13 | 2018-05-11 | 国网浙江省电力有限公司经济技术研究院 | A kind of power transmission tower frame model in wind tunnel and its installation method |
| CN108680209A (en) * | 2018-08-29 | 2018-10-19 | 中国安全生产科学研究院 | A kind of combined type Annular Round Model PFB |
| CN112539909A (en) * | 2020-11-30 | 2021-03-23 | 中国空气动力研究与发展中心 | Gantry crane device for boundary layer measurement in pulse wind tunnel |
-
2013
- 2013-01-09 CN CN 201320010451 patent/CN203024954U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063399A (en) * | 2013-01-09 | 2013-04-24 | 浙江大学 | Framed bent device for wind tunnel flow field |
| CN104340377A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Static vent shaping bulge of light airplane |
| CN104340377B (en) * | 2013-08-05 | 2016-09-28 | 哈尔滨飞机工业集团有限责任公司 | A kind of baroport correction of the flank shape bulge of light aerocraft |
| CN108020397A (en) * | 2017-12-13 | 2018-05-11 | 国网浙江省电力有限公司经济技术研究院 | A kind of power transmission tower frame model in wind tunnel and its installation method |
| CN108020397B (en) * | 2017-12-13 | 2024-04-12 | 国网浙江省电力有限公司经济技术研究院 | Wind tunnel test model of power transmission tower and installation method thereof |
| CN108680209A (en) * | 2018-08-29 | 2018-10-19 | 中国安全生产科学研究院 | A kind of combined type Annular Round Model PFB |
| CN112539909A (en) * | 2020-11-30 | 2021-03-23 | 中国空气动力研究与发展中心 | Gantry crane device for boundary layer measurement in pulse wind tunnel |
| CN112539909B (en) * | 2020-11-30 | 2023-03-24 | 中国空气动力研究与发展中心 | Gantry crane device for boundary layer measurement in pulse wind tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20160109 |