CN210893608U - Gas flow velocity measurement experiment wind tunnel - Google Patents
Gas flow velocity measurement experiment wind tunnel Download PDFInfo
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- CN210893608U CN210893608U CN201921929086.0U CN201921929086U CN210893608U CN 210893608 U CN210893608 U CN 210893608U CN 201921929086 U CN201921929086 U CN 201921929086U CN 210893608 U CN210893608 U CN 210893608U
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Abstract
The utility model discloses a gas flow velocity measurement experiment wind-tunnel, comprising a base plate, the last fixed surface of bottom plate is connected with bellows, the fixed intercommunication of the left surface of bellows has a transparent test section of thick bamboo, the symmetrical supporting leg of bottom surface fixedly connected with of a transparent test section of thick bamboo, every the bottom of supporting leg all is connected with the last fixed surface of bottom plate, the gas outlet has been seted up to the left surface of a transparent test section of thick bamboo, the inside of gas outlet is equipped with the sealing plug, the inside wall fixedly connected with fixed plate of a transparent test section of thick bamboo, the symmetrical fixed column of the right flank fixedly connected with of fixed plate, the ventilation hole has been seted up in the front of fixed plate, the front of fixed plate. The utility model discloses have and utilize laser velocity of flow to measure and combine to carry out the gas velocity of flow to measure with hot line velocity of flow two kinds of modes to take the average value with data and calculate, improved the beneficial effect of measuring accuracy nature, its mainly used gas velocity of flow measures the experiment.
Description
Technical Field
The utility model particularly relates to a gas flow velocity measurement experiment wind-tunnel.
Background
The wind tunnel is a pipeline-shaped experimental device which can manually generate and control airflow to simulate the flow of air around an aircraft or an object, measure the action of the airflow on the object and observe physical phenomena, is the most common and effective tool for aerodynamic experiments, has various types and different classification methods, can be divided into low-speed, high-speed and hypersonic wind tunnels according to the airflow speed of experimental sections, is widely used for the tests of automobile aerodynamics and wind engineering nowadays, such as wind load and vibration of structures, building ventilation, air pollution, wind power generation, environmental wind fields, flow conditions in complex terrains, wind-proof facilities and the like, and is provided with an experimental wind tunnel for measuring the airflow speed by using a measurement experimental wind tunnel model for teaching at present.
However, the existing measurement experiment wind tunnel is difficult to operate and measure in the using process and cannot accurately measure the gas flow velocity, so that a gas flow velocity measurement experiment wind tunnel is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a, aim at solving the current measurement experiment wind-tunnel that exists above-mentioned in the use, the operation with measure the difficulty, can not the accurate measurement gas velocity of flow problem.
The utility model is realized in such a way, a gas flow velocity measurement experiment wind tunnel comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with an air box, the left side surface of the air box is fixedly communicated with a transparent testing cylinder, the bottom surface of the transparent testing cylinder is fixedly connected with symmetrical supporting legs, the bottom end of each supporting leg is fixedly connected with the upper surface of the bottom plate, the left side surface of the transparent testing cylinder is provided with a gas outlet, the inside of the gas outlet is provided with a sealing plug, the inner side wall of the transparent testing cylinder is fixedly connected with a fixed plate, the right side surface of the fixed plate is fixedly connected with symmetrical fixed columns, the front surface of the fixed plate is provided with a ventilation hole, the front surface of the fixed plate is provided with a heat wire, the left end and the right end of the heat wire are respectively fixedly connected with the outer surfaces of the two, the top of a transparent test section of thick bamboo is equipped with the laser current meter, the bottom of laser current meter runs through a transparent test section of thick bamboo and extends to the inside of a transparent test section of thick bamboo, the last fixed surface of a transparent test section of thick bamboo is connected with the display, the inside of bellows is equipped with the mount, the left surface of mount is seted up flutedly, the inside of recess is equipped with the buffering circle, the left surface fixedly connected with centrifugal fan of buffering circle, the interior diapire fixedly connected with speed regulator of bellows.
The bottom surface of bottom plate fixedly connected with symmetrical universal wheel, the quantity of universal wheel is four at least.
The air inlet has been seted up to the right flank of bellows, the right flank of bellows passes through screw fixedly connected with dust screen.
The front of bellows fixedly connected with control panel, control panel's front fixedly connected with control switch.
Symmetrical flow stabilizing plates are fixedly connected inside the transparent testing cylinder, and through holes which are arranged equidistantly are formed in the front face of each flow stabilizing plate.
The bottom surface of the transparent test cylinder is fixedly connected with a spring, and the bottom end of the spring is fixedly connected with the upper surface of the bottom plate.
Compared with the prior art, the beneficial effects of the utility model are that: the universal wheel is arranged below the bottom plate, so that the movement of an experimental device can be realized, the experimental device is convenient for teaching test and use, wind power is provided through the centrifugal fan inside the air box, the dust-blocking and dust-preventing effects can be achieved by matching with the air inlet and the dust-proof plate, the centrifugal fan rotates to generate a large amount of wind power and conveys the wind power into the transparent test cylinder, the wind power in the transparent test cylinder stabilizes the flow velocity through the two layers of flow-stabilizing plates to ensure the uniformity of the gas flow velocity, the gas flow velocity is directly tested through the laser flow velocity meter and the test result is conveyed to the display to be displayed, the display is utilized to display the result, so that students can conveniently observe the result, meanwhile, the gas passes through the hot wires fixed on the fixed plate and the fixed column, and the hot wires are connected with the hot wire anemograph to display the measured gas flow velocity on the display, the method has the advantages that the specific gas flow rate can be obtained by averaging two test data, the gas flow rate is measured by combining two modes of laser flow rate measurement and hot wire flow rate measurement in the gas flow rate test experiment wind tunnel, the data is averaged to be calculated, the measurement accuracy is improved, and the problems that the operation and the measurement are difficult and the gas flow rate cannot be accurately measured in the using process of the existing measurement experiment wind tunnel are solved.
Drawings
FIG. 1 is a cross-sectional view of a transparent test cartridge of the present invention;
FIG. 2 is a sectional view of the bellows of the present invention;
fig. 3 is a side view of the fixing plate of the present invention;
fig. 4 is a side view of the flow stabilizer of the present invention.
In the figure: 1. a base plate; 2. a universal wheel; 3. a dust screen; 4. a control switch; 5. a control panel; 6. an air box; 7. a transparent test cartridge; 8. a flow stabilizer; 9. a display; 10. a laser flow meter; 11. a hot wire anemometer; 12. a fixing plate; 13. an air outlet; 14. a sealing plug; 15. fixing a column; 16. a spring; 17. supporting legs; 18. a speed regulator; 19. a fixed mount; 20. a groove; 21. a buffer ring; 22. a centrifugal fan; 23. an air inlet; 24. a vent hole; 25. a heat wire; 26. and a through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-4, the present invention provides a technical solution: an experimental wind tunnel for measuring gas flow velocity comprises a bottom plate 1, an air box 6 is fixedly connected to the upper surface of the bottom plate 1, a transparent test cylinder 7 is fixedly communicated with the left side surface of the air box 6, symmetrical support legs 17 are fixedly connected to the bottom surface of the transparent test cylinder 7, the bottom end of each support leg 17 is fixedly connected with the upper surface of the bottom plate 1, an air outlet 13 is formed in the left side surface of the transparent test cylinder 7, a sealing plug 14 is arranged inside the air outlet 13, a fixing plate 12 is fixedly connected to the inner side wall of the transparent test cylinder 7, symmetrical fixing columns 15 are fixedly connected to the right side surface of the fixing plate 12, a ventilation hole 24 is formed in the front surface of the fixing plate 12, a heat wire 25 is arranged in the front surface of the fixing plate 12, the left end and the right end of the heat wire 25 are respectively fixedly connected with the outer surfaces of the two fixing columns 15, a heat wire anemo, the bottom of laser current meter 10 runs through transparent test section of thick bamboo 7 and extends to the inside of transparent test section of thick bamboo 7, the last fixed surface of transparent test section of thick bamboo 7 is connected with display 9, the inside of bellows 6 is equipped with mount 19, the left surface of mount 19 is seted up flutedly 20, the inside of recess 20 is equipped with buffer ring 21, the left surface fixedly connected with centrifugal fan 22 of buffer ring 21, the interior diapire fixedly connected with speed regulator 18 of bellows 6, speed regulator 18, laser current meter 10 and hot wire anemoscope 11 are present stage prior art, do not give unnecessary redundant details here.
The utility model discloses the symmetrical universal wheel 2 of bottom surface fixedly connected with of well bottom plate 1, the quantity of universal wheel 2 is four at least, can be convenient for remove, the flexibility of using improves, air inlet 23 has been seted up to bellows 6's right flank, bellows 6's right flank passes through screw fixedly connected with dust screen 3, can realize ventilating dirt-proof effect, bellows 6's positive fixedly connected with control panel 5, control panel 5's positive fixedly connected with control switch 4, the wind speed measuring control and the speed governing of being convenient for.
The symmetrical flow stabilizing plates 8 are fixedly connected to the inner portion of the transparent testing cylinder 7, through holes 26 which are arranged equidistantly are formed in the front face of each flow stabilizing plate 8, the effect of stabilizing the flow of gas can be achieved, the springs 16 are fixedly connected to the bottom face of the transparent testing cylinder 7, the bottom ends of the springs 16 are fixedly connected with the upper surface of the bottom plate 1, and the buffering effect can be effectively achieved.
The utility model discloses a theory of operation is: when the device is used, the device is moved to an experimental position through the universal wheel 2, then the device is powered on, the centrifugal fan 22 is started through the control switch 4 on the control panel 5, the centrifugal fan 22 rotates to generate a large amount of wind power, then the wind power enters the transparent testing cylinder 7, the current is stabilized through the two current stabilizing plates 8 and then is measured through the laser current meter 10, the measured data is displayed through the display 9, then the measurement is performed through the heat wire 25 on the fixing plate 12, the analysis data is performed by matching with the heat wire anemometer 11 and is sent to the display 9 to be displayed, then the average value of the two sets of data is obtained, if multiple tests are needed, the rotating speed of the centrifugal fan 22 can be controlled through the speed regulator 18, and therefore multiple tests with different flowing speeds are achieved.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a gas flow velocity measurement experiment wind-tunnel, includes bottom plate (1), its characterized in that: the testing device is characterized in that an air box (6) is fixedly connected to the upper surface of the bottom plate (1), a transparent testing cylinder (7) is fixedly communicated with the left side surface of the air box (6), symmetrical supporting legs (17) are fixedly connected to the bottom surface of the transparent testing cylinder (7), the bottom end of each supporting leg (17) is fixedly connected with the upper surface of the bottom plate (1), an air outlet (13) is formed in the left side surface of the transparent testing cylinder (7), a sealing plug (14) is arranged inside the air outlet (13), a fixing plate (12) is fixedly connected to the inner side wall of the transparent testing cylinder (7), symmetrical fixing columns (15) are fixedly connected to the right side surface of the fixing plate (12), a ventilation hole (24) is formed in the front surface of the fixing plate (12), a heat wire (25) is arranged in the front surface of the fixing plate (12), and the left end and the right end of the heat wire (25), the utility model discloses a test tube, including transparent test tube (7), upper surface fixedly connected with hot wire anemoscope (11), the top of transparent test tube (7) is equipped with laser current meter (10), the bottom of laser current meter (10) runs through transparent test tube (7) and extends to the inside of transparent test tube (7), the upper surface fixedly connected with display (9) of transparent test tube (7), the inside of bellows (6) is equipped with mount (19), recess (20) are seted up to the left surface of mount (19), the inside of recess (20) is equipped with buffering circle (21), the left surface fixedly connected with centrifugal fan (22) of buffering circle (21), the interior diapire fixedly connected with speed regulator (18) of bellows (6).
2. The wind tunnel for gas flow velocity measurement experiment according to claim 1, wherein: the bottom surface of bottom plate (1) fixedly connected with symmetrical universal wheel (2), the quantity of universal wheel (2) is four at least.
3. The wind tunnel for gas flow velocity measurement experiment according to claim 1, wherein: an air inlet (23) is formed in the right side face of the air box (6), and the right side face of the air box (6) is fixedly connected with a dust screen (3) through screws.
4. The wind tunnel for gas flow velocity measurement experiment according to claim 1, wherein: the front side of the air box (6) is fixedly connected with a control panel (5), and the front side of the control panel (5) is fixedly connected with a control switch (4).
5. The wind tunnel for gas flow velocity measurement experiment according to claim 1, wherein: the transparent testing cylinder (7) is fixedly connected with symmetrical flow stabilizing plates (8) inside, and through holes (26) which are arranged at equal intervals are formed in the front face of each flow stabilizing plate (8).
6. The wind tunnel for gas flow velocity measurement experiment according to claim 1, wherein: the bottom surface of the transparent testing cylinder (7) is fixedly connected with a spring (16), and the bottom end of the spring (16) is fixedly connected with the upper surface of the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929086.0U CN210893608U (en) | 2019-11-11 | 2019-11-11 | Gas flow velocity measurement experiment wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929086.0U CN210893608U (en) | 2019-11-11 | 2019-11-11 | Gas flow velocity measurement experiment wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210893608U true CN210893608U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921929086.0U Active CN210893608U (en) | 2019-11-11 | 2019-11-11 | Gas flow velocity measurement experiment wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210893608U (en) |
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2019
- 2019-11-11 CN CN201921929086.0U patent/CN210893608U/en active Active
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