CN220603500U - Rotating wheel type open channel flow velocity meter - Google Patents
Rotating wheel type open channel flow velocity meter Download PDFInfo
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- CN220603500U CN220603500U CN202322342202.1U CN202322342202U CN220603500U CN 220603500 U CN220603500 U CN 220603500U CN 202322342202 U CN202322342202 U CN 202322342202U CN 220603500 U CN220603500 U CN 220603500U
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- runner
- channel flow
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000005259 measurement Methods 0.000 description 8
- 239000000523 sample Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The utility model discloses a rotary wheel type open channel flow velocity meter, and relates to the technical field of hydrological measuring instruments; comprises a bracket; a reed sensor is arranged on the lever arm of the bracket; a rotating wheel; the center of the rotating wheel is provided with a center hole, the center hole is rotationally connected with the bottom of the bracket, and the edge of the rotating wheel is provided with an electromagnet corresponding to the reed sensor; a signal collector; the signal collector is arranged on the bracket and is electrically connected with the signal output end of the dry spring sensor, and by using the rotating wheel, sundries can be effectively prevented from being wound, the testing precision is ensured, the electromagnet is matched with the structure of the dry spring sensor, meanwhile, the duration of one rotation of the rotating wheel can be calculated by combining the electric connection of the signal collector and the signal output end of the dry spring sensor, the water flow speed measured by the rotating wheel can be further obtained, and the average flow velocity of the section of the whole open channel is calculated.
Description
Technical Field
The utility model relates to the technical field of hydrological measuring instruments, in particular to a runner type open channel flow velocity meter.
Background
The existing flowmeters can be divided into rotor flowmeters, acoustic flowmeters, electric wave flowmeters, electromagnetic point flowmeters and the like according to the measurement principle.
When the rotor type flow velocity meter and the electromagnetic point flow velocity meter measure the flow velocity of open channel water, the probe needs to extend into the water flow, however, when sundries such as weeds, branches, plastic belts and the like are clamped in the water flow, the sundries are particularly easy to wind, so that inaccurate measurement is caused, and the probe is damaged; the acoustic flow velocity meter and the electric wave flow velocity meter adopt the Doppler effect principle, the probe does not need to contact water flow, and the probe is generally arranged above an open channel and can measure the water level and the flow velocity simultaneously.
The open channel is narrower in width, generally not more than 5m, and the flow velocity of the open channel water flow is measured, so that the flow velocity of at least 3 points is generally required to represent the flow velocity condition of the whole section; at present, the acoustic flow rate meter and the electric wave flow rate meter are generally high in manufacturing cost, and the installation distances of a plurality of probes cannot be too close, otherwise, the measurement accuracy is strongly influenced by interference.
Therefore, how to provide a runner-type open channel flow rate meter with simple structure, convenient assembly and disassembly, low manufacturing cost and measurement accuracy guarantee is a problem which needs to be solved by the technicians in the field.
Disclosure of Invention
In view of the above, the present utility model provides a rotary wheel type open channel flow rate meter, which aims to solve the above technical problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a runner-type open channel flow meter comprising:
a bracket; a reed sensor is arranged on the lever arm of the bracket;
a rotating wheel; the center of the rotating wheel is provided with a center hole, the center hole is rotationally connected with the bottom of the bracket, and the edge of the rotating wheel is provided with an electromagnet corresponding to the reed sensor;
a signal collector; the signal collector is arranged on the bracket and is electrically connected with the signal output end of the reed sensor.
Through the technical scheme, in the rotary wheel type open channel flow velocity meter, by using the rotary wheel, sundries can be effectively prevented from being wound, the testing precision is ensured, the structural cooperation of the electromagnet and the dry spring sensor is combined, meanwhile, the duration of one rotation of the rotary wheel can be calculated by combining the electric connection of the signal collector and the signal output end of the dry spring sensor, the water flow velocity measured by the rotary wheel can be further obtained, and the average flow velocity of the section of the whole open channel is calculated.
Preferably, in the rotary wheel type open channel flow velocity meter, the bracket comprises a cross rod and a vertical rod, a through groove is formed in the cross rod, and a sleeve is arranged in the through groove; the sleeve is of a cylinder structure with an upper opening and a lower opening, the vertical rod penetrates through the sleeve, and the bottom end of the vertical rod is rotationally connected with the central hole.
Preferably, in the rotary wheel type open channel flow velocity meter, a connecting short rod is vertically fixed at the bottom end of the vertical rod, the connecting short rod faces the central hole, a bearing is installed in the central hole, and an inner ring of the bearing is fixedly sleeved on the outer side of the connecting short rod.
Preferably, in the rotary wheel type open channel flow rate meter, universal balls are mounted on two sides of the inner side wall of the sleeve, and the balls of the universal balls are abutted with the outer side wall of the vertical rod. The setting of universal ball can adjust the height of pole setting from top to bottom to adaptation water level changes, assurance measurement accuracy that can be better.
Preferably, in the wheel type open channel flow rate meter, the number of the through grooves, the number of the sleeves, the number of the vertical rods and the number of the wheels are all plural, and the number of the through grooves, the number of the vertical rods and the number of the wheels are the same. This structure sets up, can realize the rivers measurement of a plurality of positions on the open channel section, and simple structure, it is convenient to install and remove, low in cost, and the mutual noninterference between a plurality of runners.
Preferably, in the rotary wheel type open channel flow rate meter, a wire is installed in the upright rod, the reed switch is electrically connected with the signal collector through the wire, and the signal collector is installed on the cross rod.
Preferably, in the rotary wheel type open channel flow velocity meter, a plurality of arc-shaped edges uniformly distributed around the circle center are fixed on the surface of the rotary wheel, which is away from the upright rod. Stability can be increased.
Preferably, in the above-mentioned one wheel type open channel flow rate meter, the flow rate calculation of the wheel is determined according to the following formula:
v＝a+bn
wherein: v is the flow rate in m/s; a is an instrument constant, the unit is m/s, and the calculation is performed by referring to a rotor type flow rate meter GB/T11826-2002; b is the rotor torque, b=2pi r, where r is the rotor radius in m; n is the rotation rate of the rotating wheel, the ratio of one rotation of the rotating wheel to the duration t, n=1/t, unitIs s -1 。
Compared with the prior art, the utility model discloses a runner type open channel flow velocity meter, which has the following beneficial effects:
1. the utility model has simple structure and convenient assembly and disassembly.
2. According to the utility model, by using the rotating wheel, sundries can be effectively prevented from being wound, and further the measurement accuracy is ensured.
3. According to the utility model, through the arrangement of the through grooves, the sleeves, the vertical rods and the rotating wheels, the specific quantity can be determined according to the width of the open channel, so that the measurement of the flow velocity of the section of the whole open channel is realized, and the rotating wheels are not interfered with each other.
4. According to the utility model, the height of the vertical rod can be freely adjusted up and down according to the water level by the universal ball arranged between the sleeve and the vertical rod, and the application range is wide.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a rotary wheel type open channel flow meter provided by the utility model;
FIGS. 2-3 are isometric views of a rotary wheel type open channel flow meter provided by the utility model;
FIG. 4 is a top view of the sleeve, pole and ball according to the present utility model;
fig. 5 is a schematic structural view of the present utility model for installing a plurality of runner-type open channel flowmeters.
Wherein:
1-a bracket;
11-a cross bar; 12-standing a pole; 13-connecting short rods;
2-reed sensor;
3-rotating wheels;
31-a central hole;
4-electromagnet;
5-sleeve;
6-universal ball;
7-conducting wires;
8-arc edges.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 5, an embodiment of the present utility model discloses a rotary wheel type open channel flow rate meter, comprising:
a bracket 1; the lever arm of the bracket 1 is provided with a reed sensor 2;
a rotating wheel 3; a central hole 31 is formed in the center of the rotating wheel 3, the central hole 31 is rotationally connected with the bottom of the bracket 1, and an electromagnet 4 corresponding to the reed sensor 2 is arranged at the edge of the rotating wheel 3;
a signal collector; the signal collector is arranged on the bracket 1 and is electrically connected with the signal output end of the reed sensor 2.
In order to further optimize the technical scheme, the bracket 1 comprises a cross rod 11 and a vertical rod 12, wherein a through groove is formed in the cross rod 11, and a sleeve 5 is arranged in the through groove; the sleeve 5 is a cylinder structure with upper and lower openings, the vertical rod 12 penetrates through the sleeve 5, and the bottom end of the vertical rod 12 is rotationally connected with the central hole 31.
In order to further optimize the technical scheme, the bottom end of the upright rod 12 is vertically fixed with a connecting short rod 13, the connecting short rod 13 is arranged towards the central hole 31, a bearing is arranged in the central hole 31, and the inner ring of the bearing is fixedly sleeved on the outer side of the connecting short rod 13.
In order to further optimize the technical scheme, universal balls 6 are arranged on two sides of the inner side wall of the sleeve 5, and the spheres of the universal balls 6 are abutted with the outer side wall of the vertical rod 12.
In order to further optimize the technical scheme, the number of the through grooves can be multiple, the through grooves are arranged on the cross rod 11 at intervals, and the number of the sleeve 5, the vertical rod 12 and the rotating wheel 3 is the same as that of the through grooves. The wheels 3 do not interfere with each other.
In order to further optimize the technical scheme, a wire 7 is arranged in the vertical rod 12, the reed sensor 2 is electrically connected with a signal collector through the wire 7, and the signal collector is arranged on the cross rod 11.
In order to further optimize the technical proposal, a plurality of arc-shaped ribs 8 which are evenly distributed around the circle center are fixed on the surface of the rotating wheel 3 which is away from the connection with the vertical rod 12.
In order to further optimize the technical scheme, the number of the arc-shaped ribs 8 is 4-8; the thickness of the arc-shaped edge 8 is 1-2cm.
To further optimize the above solution, the flow rate calculation of the runner 3 is determined according to the following formula:
v＝a+bn
wherein: v is the flow rate in m/s; a is an instrument constant, the unit is m/s, and the calculation is performed by referring to a rotor type flow rate meter GB/T11826-2002; b is the rotor torque, b=2pi r, where r is the rotor radius in m; n is the rotation rate of the rotating wheel, the ratio of one rotation of the rotating wheel to the duration t, n=1/t, and the unit is s -1 。
In order to further optimize the technical scheme, the material of the rotating wheel 3 is weather-resistant acrylic or polyethylene plastic, the radius r of the rotating wheel is 5-15 cm, and the thickness d of the rotating wheel is 3-5 cm.
In order to further optimize the technical scheme, the total weight of the structure is controlled within 0.18×r2×d, and the submerging range of the rotating wheel 2 is controlled within 1/2r, so that the bearing in the central hole 31 is prevented from being flooded.
In order to further optimize the technical scheme, the solar energy power supply system further comprises a power supply unit, wherein the power supply unit can supply power for a commercial power, solar energy or a storage battery.
The embodiment of the utility model is as follows:
when measuring, the runner 2 rotates under the promotion of rivers, when the electro-magnet 4 on the runner 2 rotates to the position that reed sensor 2 corresponds, make two reeds on the reed sensor 2 contact and form the circuit passageway, signal collection system records the time at this moment, the runner 2 continuously rotates, when electro-magnet 4 rotates to the position that reed sensor 2 corresponds once more, signal collection system records the time at this moment once more, the time difference of twice is the duration that runner 2 rotated once more, signal collection system calculates the water velocity that each runner 2 measured with the data formula v=a+bn that each runner 2 recorded, and calculate the average flow of whole open channel section can.
It should be noted that, the reed sensor 2 and the electromagnet 4 in the utility model may be replaced by other structures to cooperate with the signal collector, so as to realize the duration of one rotation of the rotating wheel 2.
The arrows in fig. 1-3 and 5 of the present utility model indicate the direction of water flow.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A runner-type open channel flow meter, comprising:
a bracket (1); a reed sensor (2) is arranged on the lever arm of the bracket (1);
a rotating wheel (3); a central hole (31) is formed in the center of the rotating wheel (3), the central hole (31) is rotationally connected with the bottom of the bracket (1), and an electromagnet (4) corresponding to the reed sensor (2) is arranged at the edge of the rotating wheel (3);
a signal collector; the signal collector is arranged on the bracket (1) and is electrically connected with the signal output end of the reed sensor (2).
2. The rotary wheel type open channel flow rate meter according to claim 1, wherein the bracket (1) comprises a cross rod (11) and a vertical rod (12), a through groove is formed in the cross rod (11), and a sleeve (5) is arranged in the through groove; the sleeve (5) is of a cylinder structure with an upper opening and a lower opening, the vertical rod (12) penetrates through the sleeve (5), and the bottom end of the vertical rod (12) is rotationally connected with the central hole (31).
3. The rotary wheel type open channel flow velocity meter according to claim 2, wherein a connecting short rod (13) is vertically fixed at the bottom end of the vertical rod (12), the connecting short rod (13) is arranged towards the central hole (31), a bearing is installed in the central hole (31), and an inner ring of the bearing is fixedly sleeved on the outer side of the connecting short rod (13).
4. The runner-type open channel flow rate meter according to claim 2, wherein universal balls (6) are mounted on two sides of the inner side wall of the sleeve (5), and the spheres of the universal balls (6) are abutted with the outer side wall of the upright (12).
5. The runner-type open channel flow rate meter according to claim 2, wherein the number of through slots, the sleeve (5), the upright (12) and the runner (3) is plural and the same.
6. The rotary open channel flow meter according to claim 2, characterized in that a wire (7) is installed in the upright (12), the reed switch (2) is electrically connected with the signal collector through the wire (7), and the signal collector is installed on the cross bar (11).
7. A runner-type open channel flow rate meter according to claim 2, characterized in that the runner (3) is fixed with a plurality of arc-shaped ribs (8) evenly distributed around the circle center facing away from the surface connected with the upright (12).
8. A runner-type open channel flow meter according to claim 1, characterized in that the flow rate calculation of the runner (3) is determined according to the following formula:
v＝a+bn
wherein: v is the flow rate in m/s; a is an instrument constant, the unit is m/s, and the calculation is performed by referring to a rotor type flow rate meter GB/T11826-2002; b is the rotor torque, b=2pi r, where r is the rotor radius in m; n is the rotation rate of the rotating wheel, the ratio of one rotation of the rotating wheel to the duration t, n=1/t, and the unit is s -1 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322342202.1U CN220603500U (en) | 2023-08-30 | 2023-08-30 | Rotating wheel type open channel flow velocity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322342202.1U CN220603500U (en) | 2023-08-30 | 2023-08-30 | Rotating wheel type open channel flow velocity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220603500U true CN220603500U (en) | 2024-03-15 |
Family
ID=90167418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322342202.1U Active CN220603500U (en) | 2023-08-30 | 2023-08-30 | Rotating wheel type open channel flow velocity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220603500U (en) |
-
2023
- 2023-08-30 CN CN202322342202.1U patent/CN220603500U/en active Active
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