CN210442358U - Sensor device for measuring sand content - Google Patents
Sensor device for measuring sand content Download PDFInfo
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- CN210442358U CN210442358U CN201921207345.9U CN201921207345U CN210442358U CN 210442358 U CN210442358 U CN 210442358U CN 201921207345 U CN201921207345 U CN 201921207345U CN 210442358 U CN210442358 U CN 210442358U
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- pitot tube
- sensor
- sand content
- static pressure
- measuring
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Abstract
The utility model provides a measure sensor device of sand content, including pitot tube, fixed branch and data display device, be provided with static pressure chamber and pressure sensor in the pitot tube, pressure sensor installs the pressure variation situation that is used for detecting the static pressure chamber on the static pressure chamber, pressure sensor is connected to the hall current sensor who installs at the pitot tube top through signal conductor, hall current sensor's top sets up antifriction bearing, and the fixed branch lower extreme is connected with the pitot tube through antifriction bearing, and fixed branch is hollow, and inside is provided with signal conductor, data display device sets up in the upper end of fixed branch and is connected with hall current sensor through signal conductor. The sand content can be automatically tracked and measured, and the influence of lateral flow on water pressure measurement is avoided, so that the change of the sand content of the water flow is accurately reflected in real time.
Description
Technical Field
The utility model relates to a river course measurement field, concretely relates to measure sensor device of sand content.
Background
The existing methods for measuring the sand content are mainly divided into a direct method and an indirect method. The direct method mainly comprises a drying method and a specific gravity method, wherein the drying method is the most accurate method, a certain amount of sand-containing water flow samples are required to be taken, and the volume of sand before drying and the weight of the dried sand are measured, so that the sand content is obtained, but the operation is complicated, the efficiency is low, and the online continuous monitoring cannot be realized. Indirect methods are more, a relation between a photoelectric signal and sand content is established to indirectly measure the sand content mainly based on a spectrophotometry method, an infrared method, a capacitance method, a vibration method, an ultrasonic method, a laser method, a gamma ray method and the like, and related measuring devices are quite complex in structure and influenced by the size of the sand content, the size of sediment particles, the motion condition of the sediment particles and the like, and the sand content measuring result has certain limitations.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming of above-mentioned measurement sand content sensor, provide a sensor device based on differential pressure type dynamic measurement sand content, have advantages such as with low costs, dynamic response is fast, convenient operation.
The technical scheme of the utility model:
the utility model provides a measure sensor device that contains sand volume, includes pitot tube, fixed branch and data display device, be provided with static pressure chamber and pressure sensor in the pitot tube, pressure sensor installs the pressure variation condition that is used for detecting static pressure chamber on static pressure chamber, pressure sensor passes through signal conductor and is connected to the hall current sensor who installs at the pitot tube top, hall current sensor's top sets up antifriction bearing, and the fixed branch lower extreme passes through antifriction bearing and is connected with the pitot tube, and fixed branch is hollow, and inside is provided with signal conductor, data display device sets up in the upper end of fixed branch and is connected with hall current sensor through signal conductor.
And the middle part of the pitot tube is provided with a vertical guide wing.
An upper static pressure cavity and a lower static pressure cavity are arranged in the pitot tube, and two static pressure holes are respectively arranged on two sides of the center horizontal plane of each static pressure cavity, which are perpendicular to the direction of the guide wing.
The pressure sensor is positioned in the center of the top of the static pressure cavity in the pitot tube.
The upper end and the lower end of the pitot tube are both of hemispherical structures.
The static pressure cavity is also provided with a signal wire hole.
The static pressure cavity is spherical or cylindrical.
Compared with the prior art, the beneficial effects of the utility model are that: the pressure sensor and the Hall current sensor are mature in technology, and the Hall current sensor is based on a Hall effect principle and in a non-contact mode, so that the reaction is sensitive, the dynamic response speed is high, and the operation is more convenient. The sand content can be automatically tracked and measured, the influence of lateral flow on static pressure measurement is avoided, and the pressure sensor can accurately reflect the size and the change of the static pressure of water flows at different depths in real time; the utility model discloses a hall current sensor carries out switching output with the pressure sensor signal of telecommunication, because hall current sensor is based on hall effect principle, non-contact, has reduced frictional resistance to pitot tube pivoted influence, has improved sensitivity and the accuracy of sand content measurement. The Hall current sensor based on the Hall effect principle is favorable for enhancing the reliability and the sensitivity of the sand content measuring device because the Hall current sensor based on the Hall effect principle has many advantages, such as firm structure, small volume, light weight, long service life, convenient installation, small power consumption, high frequency, vibration resistance, and resistance to pollution or corrosion of dust, oil stain, water vapor, salt mist and the like.
Drawings
Fig. 1 is a schematic structural diagram of a sensor device for measuring sand content according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view of portion B-B of FIG. 1;
fig. 4 is a schematic view of the overall structure of the sensor device for measuring sand content according to the present invention.
In the figure: 1. a pitot tube; 2. a static pressure chamber; 3. a guide vane; 4. a pressure sensor; 5. a signal conductor; 6. a Hall current sensor; 7. fixing the supporting rod; 8. a data processing display device; 9. a static pressure port; 11. a hemispherical structure; 51. a signal wire hole; 61. a rolling bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 4, the present invention provides a technical solution:
the utility model provides a measure sensor device that contains sand volume, includes pitot tube 1, fixed branch 7 and data display device 8, be provided with static pressure chamber 2 and pressure sensor 4 in the pitot tube 1, pressure sensor 4 installs the pressure variation condition that is used for detecting static pressure chamber 2 on static pressure chamber 2, pressure sensor 4 is connected to the hall current sensor 6 of installing at pitot tube 1 top through signal wire 5, hall current sensor 6's top sets up antifriction bearing 61, and fixed branch 7 lower extreme is connected with pitot tube 1 through antifriction bearing 61, and fixed branch 7 is hollow, and inside is provided with signal wire 5, data display device 8 sets up in the upper end of fixed branch 7 and is connected with hall current sensor 6 through signal wire 5.
The middle part of the pitot tube 1 is provided with a vertical guide wing 3. The guide wings are vertically arranged, so that the water flow direction can be tracked in real time, the static pressure holes are ensured to be always vertical to the water flow direction, and the influence of water flow dynamic pressure on the measurement of the pressure sensor is reduced.
An upper static pressure cavity and a lower static pressure cavity 2 are arranged in the pitot tube 1, and two static pressure holes 9 are respectively arranged on two sides of the central horizontal plane of each static pressure cavity 2, which are perpendicular to the direction of the guide wings 3.
The pressure sensor 4 is positioned in the top center of the static pressure cavity 2 in the pitot tube 1.
The upper end and the lower end of the pitot tube 1 are both hemispherical structures 11.
The static pressure cavity 2 is also provided with a signal wire hole 51.
The static pressure cavity 2 is spherical or cylindrical.
The hall current sensor 6 mainly comprises two components, namely a hall device and an inductance magnetic core, wherein the two components are in non-contact type. Wherein, the lower extreme of fixed branch 7 is installed hall current sensor's hall device, then installs hall current sensor 6's inductance core magnetic core on the pitot tube 1.
The pressure sensor 4 is connected to an inductance magnetic core of the Hall current sensor 6 through a signal wire 5, the Hall device is connected to a data display device 8 through a signal wire in the fixed support rod, and the data display device 8 is internally provided with a circuit board and used for further processing and correcting the corresponding relation between the pressure difference and the sand content and the flow direction data and outputting and displaying the corrected sand content data.
The device has the basic principle that according to the characteristic that the hydrostatic pressure of the sandy water flow changes along with the water depth, the relation between the pressure difference and the sand content of different water depths is established, and the sand content of the water body is determined by measuring the pressure difference at the positions of different water depths.
In the embodiment, the direction can be automatically tracked only by vertically placing the pitot tube of the sensor device for measuring the sand content and fixing the fixed support rod, the sand content data can be quickly acquired according to the corresponding relation between the pressure difference and the sand content, and the dynamic response is quick.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A sensor device for measuring sand content comprises a pitot tube (1), a fixed support rod (7) and a data display device (8), it is characterized in that a static pressure cavity (2) and a pressure sensor (4) are arranged in the pitot tube (1), the pressure sensor (4) is arranged on the static pressure cavity (2) and is used for detecting the pressure change condition of the static pressure cavity (2), the pressure sensor (4) is connected to a Hall current sensor (6) arranged on the top of the pitot tube (1) through a signal lead (5), a rolling bearing (61) is arranged above the Hall current sensor (6), the lower end of a fixed supporting rod (7) is connected with the pitot tube (1) through the rolling bearing (61), the fixed supporting rod (7) is hollow, a signal wire (5) is arranged in the fixed supporting rod, the data display device (8) is arranged at the upper end of the fixed support rod (7) and is connected with the Hall current sensor (6) through a signal lead (5).
2. The sensor device for measuring the sand content according to the claim 1, characterized in that the pitot tube (1) is provided with a vertical guide vane (3) in the middle.
3. The sensor device for measuring the sand content according to the claim 2, characterized in that, two static pressure cavities (2) are arranged in the pitot tube (1), and two static pressure holes (9) are respectively arranged on two sides of the central horizontal plane of each static pressure cavity (2) which is vertical to the direction of the guide wing (3).
4. A sensor device for measuring sand content according to claim 2, characterized in that the pressure sensor (4) is located in the centre of the top of the hydrostatic chamber (2) in the pitot tube (1).
5. The sensor device for measuring the sand content according to claim 2, characterized in that the upper end and the lower end of the pitot tube (1) are both of hemispherical structures (11).
6. The sensor device for measuring the sand content according to any one of the claims 1 to 5, characterized in that the static pressure cavity (2) is also provided with a signal wire hole (51).
7. A sensor device for measuring the sand content according to any of the claims 1-5, characterized in that the shape of the hydrostatic chamber (2) is spherical or cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921207345.9U CN210442358U (en) | 2019-07-30 | 2019-07-30 | Sensor device for measuring sand content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921207345.9U CN210442358U (en) | 2019-07-30 | 2019-07-30 | Sensor device for measuring sand content |
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| CN210442358U true CN210442358U (en) | 2020-05-01 |
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| CN201921207345.9U Active CN210442358U (en) | 2019-07-30 | 2019-07-30 | Sensor device for measuring sand content |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834950A (en) * | 2021-08-30 | 2021-12-24 | 中经建研设计有限公司 | Hydrology multi-index comprehensive measurement device |
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2019
- 2019-07-30 CN CN201921207345.9U patent/CN210442358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834950A (en) * | 2021-08-30 | 2021-12-24 | 中经建研设计有限公司 | Hydrology multi-index comprehensive measurement device |
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