CN215909914U - Radar flowmeter of reverse lens mounting structure - Google Patents
Radar flowmeter of reverse lens mounting structure Download PDFInfo
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- CN215909914U CN215909914U CN202121842334.5U CN202121842334U CN215909914U CN 215909914 U CN215909914 U CN 215909914U CN 202121842334 U CN202121842334 U CN 202121842334U CN 215909914 U CN215909914 U CN 215909914U
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Abstract
The utility model relates to a radar flowmeter with a reverse lens mounting structure, which comprises a shell, wherein a liquid level measuring cavity and a flow velocity measuring cavity are arranged on the shell, a liquid level measuring assembly and a flow velocity measuring assembly are respectively arranged on the liquid level measuring cavity and the flow velocity measuring cavity, the liquid level measuring assembly comprises a liquid level radar wave lens arranged at the opening part of the liquid level measuring cavity, a liquid level radio frequency module arranged at the bottom of the liquid level measuring cavity and a power panel module, the flow velocity measuring assembly comprises a flow velocity radar wave lens arranged at the opening part of the flow velocity measuring cavity and a flow velocity radio frequency module arranged at the bottom of the flow velocity measuring cavity, an included angle is formed between an incident signal of the flow velocity radio frequency module and the horizontal plane, convex surfaces of the liquid level radar wave lens and the flow velocity radar wave lens face the cavities in which the liquid level radar wave lens and the flow velocity radio wave lens are arranged, and a level meter is arranged at the bottom of the shell. The emission direction of the liquid level radar waves is vertical to the water surface; and the included angle between the incident signal of the flow rate radio frequency radar wave and the horizontal plane is 30-60 degrees, so that the accuracy of the measured value is improved.
Description
Technical Field
The utility model relates to the technical field of radar flowmeters, in particular to a radar flowmeter with a reverse lens mounting structure.
Background
Radar flow meters are electronic devices that detect objects using electromagnetic waves. The device is mainly used for water conservancy monitoring, sewage treatment and flood control early warning. The hydrological radar flowmeter is mainly used for hydrological water conservancy monitoring work of rivers, water channels, irrigation and the like.
In the process of monitoring and managing water resources, monitoring data of water flow in occasions such as riverways, open channels, irrigation channels, underground drainage pipes, flood prevention early warning and the like are important basis for decision making. In the related art, the flowmeter contact flowmeter is easily influenced by factors such as wind, temperature, haze, silt, floaters and the like in the environment, so that the measurement accuracy of the flowmeter is reduced.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art and provides a radar flowmeter with a reasonable reverse lens mounting structure, and the radar wave signals are enhanced by adjusting the inclination degree of a radio frequency signal line, so that the accuracy of measured values is improved.
The technical scheme adopted by the utility model is as follows:
a radar flowmeter with a reverse lens mounting structure comprises a shell, wherein a liquid level measurement chamber and a flow velocity measurement chamber are arranged on the shell, a liquid level measurement assembly and a flow velocity measurement assembly are respectively arranged in the liquid level measurement chamber and the flow velocity measurement chamber,
the liquid level measuring component comprises a liquid level radar wave lens arranged at the opening part of the liquid level measuring chamber, a liquid level radio frequency module and a power panel module which are arranged at the bottom of the liquid level measuring chamber,
the flow velocity measurement assembly comprises a flow velocity radar wave lens arranged at the mouth part of the flow velocity measurement chamber and a flow velocity radio frequency module arranged at the bottom of the flow velocity measurement chamber, an included angle is formed between an incident signal of the flow velocity radio frequency module and the horizontal plane,
the convex surfaces of the liquid level radar wave lens and the flow velocity radar wave lens face the cavities in which the liquid level radar wave lens and the flow velocity radar wave lens are positioned,
and a level gauge is arranged at the bottom of the shell.
The flow velocity radar wave lens is parallel to the flow velocity radio frequency module, and the included angle between an incident signal of the flow velocity radio frequency module and the horizontal plane ranges from 30 degrees to 60 degrees.
The liquid level radar wave lens is parallel to the liquid level radio frequency module, and the radar signal transmitting direction of the liquid level meter is perpendicular to the liquid level surface.
The shell is as follows: one edge of the top surface is a cube with a chamfer angle; the liquid level radar wave lens is positioned on the top surface of the shell, and the flow velocity radar wave lens is positioned on an inclined plane formed by the chamfer angle.
The included angle between the inclined plane formed by the chamfering angle and the liquid level is equal to the included angle between the incident signal of the flow rate radio frequency module and the horizontal plane.
And a liquid level sealing ring is pressed between the liquid level radar wave lens and the mouth of the liquid level measurement chamber.
And a liquid level lens pressing plate is pressed on one side of the liquid level radar wave lens, which is far away from the liquid level sealing ring, and the liquid level lens pressing plate is pressed around the liquid level radar wave lens.
And a flow velocity sealing ring is pressed between the flow velocity radar wave lens and the mouth of the flow velocity measurement chamber, and a flow velocity pressure plate is pressed around one side of the flow velocity radar wave lens, which is far away from the flow velocity sealing ring.
The liquid level measuring chamber is connected with the flow rate measuring chamber through a channel, and the channel is used for accommodating a lead; the flow rate radio frequency module is connected with the power panel module through a wire.
An aviation connector and a waterproof vent valve are mounted on the side wall of the liquid level measuring chamber of the shell.
The utility model has the following beneficial effects:
the utility model has compact and reasonable structure and convenient use, and adopts the liquid level radar wave emission direction to be vertical to the water surface in the position design of the liquid level meter module and the current meter module; and the included angle between the incident signal of the radio frequency radar wave of the flow velocity and the horizontal plane is designed to be 30-60 degrees, and within the included angle in the range, the velocity component signal of the radar wave in the direction of the incident angle is strongest, and the measured value is most accurate.
The embedded radar wave lens and the convex surface of the lens are reversely designed, the lens and the pressing plate are both embedded into the shell, and the convex surface of the lens is internally hidden, so that the lens is protected from being influenced by physical damage such as external collision and the like; on the other hand, the emission surface is smooth in appearance due to the reverse embedded design, the design that the whole molded surface is a smooth surface is met, and the appearance aesthetic feeling is improved.
In addition, the utility model adopts the radar wave with higher frequency, thereby improving the measurement precision of the radar flowmeter. The whole circuit also has the characteristic of low power consumption.
The flowmeter provided by the utility model is designed for external cable power supply and signal transmission, and the outer shell of the equipment is provided with a hole of an aviation connector for a cable and a hole of a waterproof vent valve which are respectively screwed into the aviation connector and the waterproof vent valve. Two groups of holes which are symmetrical at two sides are also arranged on the shell at the gravity center position, and the holes are hanging rack mounting holes which are convenient for mounting.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the overall structure of the hidden liquid level radar wave lens and the hidden flow velocity radar wave lens according to the present invention.
Fig. 3 is a schematic overall structure view of another aspect of the present invention.
Fig. 4 is a sectional view of the overall structure of the present invention.
FIG. 5 is an enlarged view of the portion A of FIG. 4 for showing the structure of the liquid level lens pressing plate and the liquid level sealing ring.
Wherein: 1. a liquid level radar wave lens; 2. a liquid level lens platen; 3. a liquid level sealing ring; 4. a liquid level radio frequency module; 5. a power strip module; 6. a level gauge; 7. a flow rate radio frequency module; 8. a flow velocity radar wave lens; 9. a flow rate pressure plate; 10. a flow velocity seal ring; 11. a housing; 12. a waterproof vent valve; 13. an aviation connector.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 4, the radar flow meter with the reverse lens mounting structure of the present embodiment includes a housing 11, a liquid level measurement chamber and a flow rate measurement chamber are disposed on the housing 11, the liquid level measurement chamber and the flow rate measurement chamber are respectively provided with a liquid level measurement component and a flow rate measurement component,
the liquid level measuring component comprises a liquid level radar wave lens 1 arranged at the opening part of the liquid level measuring chamber, a liquid level radio frequency module 4 arranged at the bottom of the liquid level measuring chamber and a power panel module 5,
the flow velocity measurement component comprises a flow velocity radar wave lens 8 arranged at the mouth part of the flow velocity measurement chamber and a flow velocity radio frequency module 7 arranged at the bottom part of the flow velocity measurement chamber, an included angle is formed between an incident signal of the flow velocity radio frequency module 7 and the horizontal plane,
the convex surfaces of the liquid level radar wave lens 1 and the flow velocity radar wave lens 8 face the cavities in which the liquid level radar wave lens and the flow velocity radar wave lens are positioned,
the level 6 is mounted at the bottom of the housing 11.
The flow velocity radar wave lens 8 is parallel to the flow velocity radio frequency module 7, and the included angle between the incident signal of the flow velocity radio frequency module 7 and the horizontal plane ranges from 30 degrees to 60 degrees.
The liquid level radar wave lens 1 is parallel to the liquid level radio frequency module 4, and the radar signal transmitting direction of the liquid level meter is perpendicular to the liquid level surface.
The housing 11 is: one edge of the top surface is a cube with a chamfer angle; the liquid level radar wave lens 1 is positioned on the top surface of the shell 11, and the flow velocity radar wave lens 8 is positioned on an inclined plane formed by a chamfer angle.
The included angle between the inclined plane formed by the chamfering angle and the liquid level is equal to the included angle between the incident signal of the flow rate radio frequency module 7 and the horizontal plane.
A liquid level sealing ring 3 is pressed between the liquid level radar wave lens 1 and the mouth of the liquid level measuring chamber.
One side of the liquid level radar wave lens 1, which is far away from the liquid level sealing ring 3, is provided with a liquid level lens pressing plate 2 in a pressing way, and the liquid level lens pressing plate 2 is pressed around the liquid level radar wave lens 1.
A flow velocity sealing ring 10 is pressed between the flow velocity radar wave lens 8 and the mouth of the flow velocity measurement chamber, and a flow velocity pressure plate 9 is pressed around one side of the flow velocity radar wave lens 8 departing from the flow velocity sealing ring 10.
An aviation connector 13 and a waterproof vent valve 12 are mounted on the side wall of the liquid level measuring chamber of the shell 11.
The specific structure and working process of the embodiment are as follows:
as shown in fig. 1, which is a schematic view of the overall structure of the radar flowmeter, the entire housing 11 is a cube, and is beveled at the short side of the top surface of the cube to form an inclined surface. A liquid level measuring chamber and a flow rate measuring chamber are correspondingly arranged on the cubic top surface and the chamfer inclined surface adjacent to the top surface respectively, and the liquid level measuring assembly and the flow rate measuring assembly are respectively arranged in the two chambers. The liquid level measuring chamber is connected with the flow rate measuring chamber through a channel, and the channel is used for accommodating a lead; the flow rate radio frequency module 7 is connected with the power panel module 5 through a wire, and signals are transmitted to the power panel module 5 through the wire arrangement through the flow rate radio frequency module 7 for collection and analysis and are transmitted to the outside through a signal wire in an external power supply wire.
As shown in fig. 2, in order to hide the structural schematic diagram of the liquid level radar wave lens 1 and the flow rate radar wave lens 8, a liquid level rf module 4 is installed at the bottom of the liquid level measurement chamber, and a flow rate rf module 7 is installed at the bottom of the flow rate measurement chamber. In this embodiment, the liquid level rf module 4 and the flow rate rf module 7 adopt a 120GHz rf circuit, and compared with a conventionally used 24GHz rf circuit, the 120GHz rf circuit adopts an integrated on-chip antenna, and the volume of the antenna is much smaller than that of a 24GHz common matrix antenna, so that the overall volume of the flowmeter is not limited by the large volume of the rf antenna, and the design of the casing 11 of the apparatus is miniaturized, which is of great significance for the lightweight design of the apparatus.
Referring to fig. 2 and 3, on the side wall of the casing 11 of the liquid level measurement chamber facing away from the flow rate measurement chamber, a waterproof vent valve 12 and an aircraft connector 13 for cables are provided. Two side walls adjacent to the side walls are respectively provided with a group of mounting holes, and each group of mounting holes is provided with two mounting holes arranged in the vertical direction.
Referring to fig. 4 and 5, a liquid level sealing ring 3 is press-fitted on the liquid level radar wave lens 1, and a liquid level lens pressing plate 2 is press-fitted on the top surface of the liquid level radar wave lens 1 through a screw. Similarly, a flow velocity sealing ring 10 and a flow velocity pressure plate 9 are also press-fitted to the flow velocity radar wave lens 8.
Referring to the orientation in fig. 4, the included angles between the flow velocity radar wave lens 8 and the flow velocity radio frequency module 7 of the present invention and the horizontal plane are set, the included angles range from 30 to 60 °, and the usable node values in the present invention include 30 °, 45 °, and 60 °. This enables the centre line of the emitted radio frequency signal to also form the same angle with the horizontal plane.
The utility model adopts the flow velocity radio frequency module 7 to send out an inclined radio frequency signal central line, and combines with the vertical liquid level radio frequency module 4 emission line, so that the velocity component signal of the radar wave is strongest in the direction of the incident angle, and the measured value is most accurate when the incident angle is 45 degrees.
The above description is intended to illustrate the present invention and not to limit the present invention, which is defined by the scope of the claims, and may be modified in any manner within the scope of the present invention.
Claims (10)
1. A radar flow meter of a reverse lens mounting structure, comprising a housing (11), characterized in that: a liquid level measuring chamber and a flow velocity measuring chamber are arranged on the shell (11), a liquid level measuring component and a flow velocity measuring component are respectively arranged on the liquid level measuring chamber and the flow velocity measuring chamber,
the liquid level measuring component comprises a liquid level radar wave lens (1) arranged at the opening part of the liquid level measuring chamber, a liquid level radio frequency module (4) arranged at the bottom of the liquid level measuring chamber and a power panel module (5),
the flow velocity measurement assembly comprises a flow velocity radar wave lens (8) arranged at the mouth of the flow velocity measurement chamber and a flow velocity radio frequency module (7) arranged at the bottom of the flow velocity measurement chamber, an included angle is formed between an incident signal of the flow velocity radio frequency module (7) and the horizontal plane,
the convex surfaces of the liquid level radar wave lens (1) and the flow velocity radar wave lens (8) face the cavities in which the liquid level radar wave lens and the flow velocity radar wave lens are positioned,
the bottom of the shell (11) is provided with a level gauge (6).
2. A radar flowmeter of a reverse lens mounting structure as set forth in claim 1, wherein: the flow velocity radar wave lens (8) is parallel to the flow velocity radio frequency module (7), and the included angle between an incident signal of the flow velocity radio frequency module (7) and the horizontal plane ranges from 30 degrees to 60 degrees.
3. A radar flowmeter of a reverse lens mounting structure as set forth in claim 1, wherein: the liquid level radar wave lens (1) is parallel to the liquid level radio frequency module (4), and the radar signal transmitting direction of the liquid level meter is perpendicular to the liquid level surface.
4. A radar flowmeter of a reverse lens mounting structure as set forth in claim 1, wherein: the housing (11) is: one edge of the top surface is a cube with a chamfer angle; the liquid level radar wave lens (1) is positioned on the top surface of the shell (11), and the flow velocity radar wave lens (8) is positioned on an inclined plane formed by the chamfer angle.
5. The radar flowmeter of a reverse lens mounting structure as set forth in claim 4, wherein: the included angle between the inclined plane formed by the chamfering angle and the liquid level is equal to the included angle between the incident signal of the flow rate radio frequency module (7) and the horizontal plane.
6. A radar flowmeter of a reverse lens mounting structure as set forth in claim 1, wherein: and a liquid level sealing ring (3) is pressed between the liquid level radar wave lens (1) and the opening part of the liquid level measurement chamber.
7. A radar flowmeter of a reverse lens mounting arrangement as claimed in claim 6, wherein: one side of the liquid level radar wave lens (1) departing from the liquid level sealing ring (3) is provided with a liquid level lens pressing plate (2) in a pressing mode, and the liquid level lens pressing plate (2) is pressed around the liquid level radar wave lens (1).
8. A radar flowmeter of a reverse lens mounting structure as set forth in claim 1, wherein: the flow velocity radar wave lens is characterized in that a flow velocity sealing ring (10) is arranged between the flow velocity radar wave lens (8) and the mouth of the flow velocity measurement chamber in a pressing mode, and a flow velocity pressing plate (9) is arranged on the periphery of one side, deviating from the flow velocity sealing ring (10), of the flow velocity radar wave lens (8) in a pressing mode.
9. A radar flowmeter of a reverse lens mounting structure as set forth in claim 1, wherein: the liquid level measuring chamber is connected with the flow rate measuring chamber through a channel, and the channel is used for accommodating a lead; the flow rate radio frequency module (7) is connected with the power panel module (5) through a lead.
10. A radar flowmeter of a reverse lens mounting structure as set forth in claim 1, wherein: an aviation connector (13) and a waterproof vent valve (12) are arranged on the side wall of the liquid level measuring chamber of the shell (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121842334.5U CN215909914U (en) | 2021-08-06 | 2021-08-06 | Radar flowmeter of reverse lens mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121842334.5U CN215909914U (en) | 2021-08-06 | 2021-08-06 | Radar flowmeter of reverse lens mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215909914U true CN215909914U (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121842334.5U Active CN215909914U (en) | 2021-08-06 | 2021-08-06 | Radar flowmeter of reverse lens mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215909914U (en) |
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2021
- 2021-08-06 CN CN202121842334.5U patent/CN215909914U/en active Active
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