CN216285356U - Open channel flow velocity data acquisition device - Google Patents
Open channel flow velocity data acquisition device Download PDFInfo
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- CN216285356U CN216285356U CN202122380826.3U CN202122380826U CN216285356U CN 216285356 U CN216285356 U CN 216285356U CN 202122380826 U CN202122380826 U CN 202122380826U CN 216285356 U CN216285356 U CN 216285356U
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- data acquisition
- open channel
- acquisition device
- pitot tube
- channel flow
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- 239000011521 glass Substances 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 12
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001422033 Thestylus Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model provides an open channel flow velocity data acquisition device, which comprises a positioning and clamping device, wherein the positioning and clamping device comprises a chute measuring base, an organic glass plate is connected onto the chute measuring base in a sliding manner, a measuring pin support is arranged on one side of the upper surface of the organic glass plate, a sleeve is arranged at the upper end of the measuring pin support, a movable measuring pin is connected into the sleeve in a sliding manner, a connecting support is arranged at the lower end of the movable measuring pin, a pitot tube is arranged on the connecting support and is parallel to the movable measuring pin, and through the utility model, the horizontal position and the vertical position of the pitot tube can be accurately positioned, so that the device is very convenient and rapid, the speed measurement efficiency is greatly improved, the difficulty in using the pitot tube is reduced, the structure is simple, and the practicability is higher.
Description
Technical Field
The utility model mainly relates to the technical field of pitot tube speed measurement, in particular to an open channel flow speed data acquisition device.
Background
The pitot tube is an instrument for calculating flow speed by measuring the difference between total pressure and static pressure of fluid, and is used in scientific research, production, teaching, environmental protection, clean room, mine ventilation and energy management departments to measure the wind speed of pipeline and the air speed in furnace flue, and to determine the flow rate through conversion.
However, in the current work of using the pitot tube to measure the speed, if the pitot tube is used for measuring the flow velocity distribution of the cross section of the open channel flow, the horizontal position and the vertical position of the pitot tube are difficult to be accurately positioned, and the efficiency of the speed measurement work is seriously influenced.
Based on this, we need to develop a positioning and clamping device, thereby can accurately position the horizontal position and the vertical position of the pitot tube, the convenience is very fast, the efficiency of the speed measurement work is greatly improved, the difficulty of using the pitot tube is reduced, and the structure is simple, and the practicability is larger.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides an open channel flow rate data acquisition device, which is used for solving the technical problems in the background technology.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides an open channel velocity of flow data acquisition device, includes location clamping device, location clamping device includes the spout and measures the base, sliding connection has the organic glass board on the spout measures the base, organic glass board upper surface one side is provided with the survey needle support, survey needle support upper end is provided with the sleeve, sliding connection has the removal survey needle in the sleeve, it is provided with linking bridge to remove the survey needle lower extreme, be provided with the pitot tube on the linking bridge, and be parallel to each other with the removal survey needle.
Furthermore, a rack is arranged on one side of the movable measuring needle, a gear is connected to the rack in a meshed mode, a damping rotating shaft is arranged in the circle center position of the gear, one end of the damping rotating shaft is rotatably connected with the inner wall of the measuring needle support, and a fine adjustment knob is arranged at the other end of the damping rotating shaft.
Furthermore, one side of the outer wall of the sleeve is provided with a vernier.
Furthermore, be provided with elasticity fixture block in the recess of organic glass board both sides respectively, every elasticity fixture block all with the mutual block of card hole, every the fixture block sets up respectively and measures base outer wall both sides at the spout.
Furthermore, two communicating pipes are arranged at the upper end of the pitot tube, and a sensor is arranged at one end, far away from the pitot tube, of each communicating pipe.
Furthermore, an electrical measuring instrument is arranged on the upper side of the shell of the sensor, and the electrical measuring instrument is electrically connected with the sensor.
Furthermore, the electric measuring instrument is electrically connected with a multi-channel signal acquisition control instrument which is electrically connected with a computer.
Compared with the prior art, the utility model has the beneficial effects that:
the positioning and clamping device can accurately position the horizontal position and the vertical position of the pitot tube, is very convenient and quick, greatly improves the efficiency of speed measurement work, reduces the difficulty of using the pitot tube, has simple structure and higher practicability, and realizes the positioning of the organic glass plate and avoids the sliding on the chute measuring base through the mutual matching between the elastic clamping block and the clamping hole.
The present invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the overall connection structure of the present invention;
FIG. 2 is a schematic view of a positioning and clamping device according to the present invention;
FIG. 3 is a schematic cross-sectional view of the inside of the stylus holder and sleeve of the present invention;
fig. 4 is an enlarged schematic view of the area a in fig. 2.
In the figure: 1. positioning the clamping device; 11. a chute measuring base; 111. a clamping hole; 12. an organic glass plate; 121. an elastic clamping block; 13. a stylus supporting seat; 14. a sleeve; 141. a vernier scale; 15. moving the measuring probe; 151. a rack; 16. a gear; 17. a damping rotating shaft; 18. connecting a bracket; 19. finely adjusting a knob; 2. a pitot tube; 3. a sensor; 4. an electrical measuring instrument; 5. a multi-channel signal acquisition control instrument; 6. a computer; 7. a communication pipe is provided.
Detailed Description
In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the utility model.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1-4 heavily, an open channel flow velocity data acquisition device includes a positioning and clamping device 1, the positioning and clamping device 1 includes a chute measuring base 11, an organic glass plate 12 is connected on the chute measuring base 11 in a sliding manner, a probe support 13 is arranged on one side of the upper surface of the organic glass plate 12, a sleeve 14 is arranged at the upper end of the probe support 13, a movable probe 15 is connected in the sleeve 14 in a sliding manner, a connecting support 18 is arranged at the lower end of the movable probe 15, and a pitot tube 2 is arranged on the connecting support 18 and is parallel to the movable probe 15.
Please refer to fig. 1 again, two communicating pipes 7 are arranged at the upper end of the pitot tube 2, a sensor 3 is arranged at one end of each communicating pipe 7 far away from the pitot tube 2, an electrical measuring instrument 4 is arranged on the upper side of the shell of the sensor 3, the electrical measuring instrument 4 is electrically connected with a multi-channel signal acquisition controller 5, the multi-channel signal acquisition controller 5 is electrically connected with a computer 6, and the flow velocity of the open channel is measured by the mutual cooperation of the devices.
The design principle is as follows:
in the formula: u is the point flow velocity m/s at the pitot tube measurement point; c is the pitot tube correction coefficient (constant, generally 1.0-1.05);
delta h is the difference m between the pitot tube full-pressure head and the hydrostatic head, namely the reading of the electrical measuring instrument; the gravity acceleration value is g ═ 9.80m/s 2.
Please refer to fig. 3 and fig. 4, a rack 151 is disposed on one side of the movable probe 15, the rack 151 is engaged with a gear 16, a damping rotating shaft 17 is disposed at a center of the gear 16, one end of the damping rotating shaft 17 is rotatably connected with an inner wall of the probe support 13, a fine adjustment knob 19 is disposed at the other end of the damping rotating shaft 17, fine adjustment of the height of the movable probe 15 is achieved through the fine adjustment knob 19, a vernier scale 141 is disposed on one side of an outer wall of the sleeve 14, numerical display of the height of the movable probe 15 is achieved through the vernier scale 141, elastic blocks 121 are disposed in grooves on two sides of the organic glass plate 12, each elastic block 121 is engaged with a block hole 111, each block hole 111 is disposed on two sides of an outer wall of the sliding groove measuring base 11, and positioning of the organic glass plate 12 is achieved through mutual cooperation between the elastic blocks 121 and the block holes 111, avoiding sliding on the chute measurement base 11.
The specific operation mode of the utility model is as follows:
firstly, the device is integrally placed on the horizontal ground, then whether potential safety hazards exist in all devices in the device body is checked, after no potential safety hazards exist, the position of an organic glass plate 12 on a sliding groove measuring base 11 is adjusted, then the device is fixed through the engagement between an elastic clamping block 121 and a clamping hole 111, then a damping rotating shaft 17 is driven to rotate through a fine adjustment knob 19, the damping rotating shaft 17 drives a movable measuring pin 15 to be adjusted up and down through a gear 16, the height of a connecting support 18 at the lower end of the movable measuring pin 15 is controlled, then a pitot tube 2 is clamped into the connecting support 18, the pitot tube 2 is parallel to the movable measuring pin 15, and therefore the horizontal position and the vertical position of the pitot tube 2 are accurately positioned.
The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above-described embodiments, and it is within the scope of the utility model to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (7)
1. The utility model provides an open channel velocity of flow data acquisition device, includes location clamping device (1), its characterized in that, location clamping device (1) includes that the spout measures base (11), sliding connection has organic glass board (12) on spout measurement base (11), organic glass board (12) upper surface one side is provided with survey needle support (13), survey needle support (13) upper end is provided with sleeve (14), sliding connection has removal survey needle (15) in sleeve (14), removal survey needle (15) lower extreme is provided with linking bridge (18), be provided with pitot tube (2) on linking bridge (18), and be parallel to each other with removal survey needle (15).
2. The open channel flow velocity data acquisition device according to claim 1, characterized in that a rack (151) is arranged on one side of the movable measuring probe (15), a gear (16) is engaged and connected with the rack (151), a damping rotating shaft (17) is arranged at the center of the gear (16), one end of the damping rotating shaft (17) is rotatably connected with the inner wall of the measuring probe support (13), and a fine adjustment knob (19) is arranged at the other end of the damping rotating shaft (17).
3. An open channel flow rate data acquisition device according to claim 1, wherein a vernier (141) is provided on one side of the outer wall of the sleeve (14).
4. The open channel flow rate data acquisition device according to claim 1, wherein elastic clamping blocks (121) are respectively arranged in grooves on two sides of the organic glass plate (12), each elastic clamping block (121) is mutually clamped with a clamping hole (111), and each clamping hole (111) is respectively arranged on two sides of the outer wall of the sliding groove measuring base (11).
5. The open channel flow velocity data acquisition device according to claim 1, characterized in that two communicating pipes (7) are arranged at the upper end of the pitot tube (2), and a sensor (3) is arranged at one end of each communicating pipe (7) far away from the pitot tube (2).
6. The open channel flow rate data acquisition device according to claim 5, characterized in that an electrical measuring instrument (4) is arranged on the upper side of the casing of the sensor (3), and the electrical measuring instrument (4) is electrically connected with the sensor (3).
7. The open channel flow rate data acquisition device according to claim 6, wherein the electrical measuring instrument (4) is electrically connected with a multi-channel signal acquisition control instrument (5), and the multi-channel signal acquisition control instrument (5) is electrically connected with a computer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380826.3U CN216285356U (en) | 2021-09-29 | 2021-09-29 | Open channel flow velocity data acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380826.3U CN216285356U (en) | 2021-09-29 | 2021-09-29 | Open channel flow velocity data acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216285356U true CN216285356U (en) | 2022-04-12 |
Family
ID=81066662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122380826.3U Expired - Fee Related CN216285356U (en) | 2021-09-29 | 2021-09-29 | Open channel flow velocity data acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216285356U (en) |
-
2021
- 2021-09-29 CN CN202122380826.3U patent/CN216285356U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220412 |