Radar flowmeter

Abstract

The utility model discloses a radar flowmeter which comprises an installation base and a concrete base, the installation base is a plate of a cylindrical structure, a radar cover is arranged on the installation base, an antenna assembly is connected in the radar cover, the antenna assembly corresponds to a bottom opening of the radar cover, and the concrete base is arranged on the installation base. An automatic horizontal adjusting assembly is arranged on the mounting base and is connected with the concrete base; the utility model relates to the technical field of measuring devices, the radar flowmeter forms a closed-loop automatic leveling system through the cooperative work of gyroscope sensing, control box operation and modularly designed leveling connectors, the modularized leveling connectors are arranged independently and in a distributed manner, each supporting point can be accurately lifted according to instructions, the inclination can be quickly eliminated, and the measurement accuracy is improved. According to the design, the requirement for the initial precision of the concrete base is remarkably reduced, inclination caused by follow-up settlement or displacement can be automatically compensated, it is ensured that radar beams are perpendicular to the water surface, the measurement precision is guaranteed, and meanwhile installation is more convenient and reliable through the spherical hinge structure.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, specifically a radar flow meter. Background Technology

[0002] A radar flow meter is a non-contact instrument that uses radar wave technology to measure the flow rate of liquids or gases. It is mainly used in open channels, pipelines, rivers and other scenarios. Its core principle is to calculate the flow rate by emitting radar waves and receiving the echoes, combined with fluid characteristic parameters.

[0003] In the application of radar flow meters, the radar is mostly placed at the wellhead and fixed by a cement base. The cement base needs to be leveled to ensure that the radar flow meter is installed horizontally. When the installation tilt angle of the radar flow meter is greater than 5°, the detection results of the radar flow meter will have a large cumulative error. Therefore, a level needs to be used to adjust the level during the installation process. This is not only cumbersome, but also very likely to cause inaccurate detection if the cement base tilts later. In view of this, this case was developed after in-depth research on the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a radar flow meter, which solves the existing background technology problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a radar flow meter, including a mounting base, the mounting base being a columnar plate, a radar dome being provided on the mounting base, an antenna assembly being connected inside the radar dome, the antenna assembly corresponding to the bottom opening of the radar dome, and also including a concrete base, with an automatic leveling component connected to the concrete base on the mounting base;

[0006] The automatic leveling component includes a gyroscope, the mounting base is provided with the gyroscope, the bottom surface of the mounting base is provided with at least two pairs of leveling connectors, and the mounting base is provided with a control box, which is connected to the gyroscope, the antenna assembly and the leveling connectors respectively.

[0007] The leveling connector includes an automatic adjustment motor. The drive end of the automatic adjustment motor is connected to an adjustment ring seat via a gear set. An adjustment nut is provided on the adjustment ring seat. An adjustment screw is installed inside the adjustment nut. A guide seat is installed on the adjustment ring seat. The guide seat guides and limits the adjustment screw. A support base plate is movably connected to the bottom end of the adjustment screw.

[0008] Preferably, the mounting base is connected to the radar dome via a flange.

[0009] Preferably, a manual adjustment ring sleeve is provided on the outside of the adjustment ring seat.

[0010] Preferably, the guide seat is a ring-shaped plate sleeved outside the adjusting screw, the inner wall of the guide seat extends into a guide block, and the adjusting screw has an axially formed guide groove that cooperates with the guide block.

[0011] Preferably, the concrete base is a rectangular plate, and a positioning seat is provided on the concrete base for movable connection with the supporting base plate.

[0012] Preferably, the positioning seat and the supporting base plate are movably connected by a spherical structure.

[0013] Beneficial effects

[0014] This utility model provides a radar flow meter. It offers the following advantages: This radar flow meter, through the coordinated operation of a gyroscope sensing unit, a control box for computation, and a modularly designed leveling connector, forms a closed-loop automatic leveling system. The modular leveling connectors are independently and distributed, enabling precise raising and lowering of each support point according to instructions, quickly eliminating tilt. This design significantly reduces the stringent requirements for the initial accuracy of the concrete base and automatically compensates for tilt caused by subsequent settlement or displacement, ensuring the radar beam is perpendicular to the water surface and guaranteeing measurement accuracy. Simultaneously, the ball joint structure makes installation more convenient and reliable. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a radar flow meter according to the present invention.

[0016] Figure 2 This is a schematic diagram of the front view structure of a radar flow meter according to the present invention.

[0017] Figure 3 This is a schematic diagram of the explosive structure of a radar flowmeter according to the present invention.

[0018] In the diagram: 1. Mounting base; 2. Radar cover; 3. Antenna assembly; 4. Concrete base; 5. Gyroscope; 6. Leveling connector; 61. Automatic adjustment motor; 62. Adjustment ring seat; 63. Adjustment nut; 64. Adjustment screw; 65. Guide seat; 66. Manual adjustment ring sleeve; 67. Positioning seat. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides an implementation scheme: In the application of radar flow meters, the radar probe is usually placed at the wellhead. Traditional installation methods require that the concrete base 4 itself must be strictly leveled to ensure that the radar flow meter is installed in a horizontal state to avoid tilting and causing large, difficult-to-eliminate cumulative errors in the detection results. Therefore, during the installation process, tools such as a level must be used for fine leveling, which is cumbersome and time-consuming. More importantly, if the concrete base 4 tilts due to geological settlement or other reasons during subsequent use, it will directly cause the radar flow meter to tilt as well, resulting in a serious decrease in detection accuracy that is not easy to detect and correct.

[0021] According to the instruction manual Figure 1-3 As can be seen, in order to solve the above problems, this application discloses a radar flow meter specifically including: a columnar plate-shaped mounting base 1 as the main supporting structure; a radar cover 2 installed above the mounting base 1 to protect the internal precision components; an antenna assembly 3 disposed inside the radar cover 2 with its antenna transmitting / receiving surface facing the bottom opening of the radar cover 2; and a concrete base 4 as a ground-fixed foundation, wherein an automatic leveling assembly is provided between the mounting base 1 and the concrete base 4.

[0022] According to the instruction manual Figure 1-3 It can be seen that the automatic leveling component is the core of intelligent leveling. The gyroscope 5 or tilt sensor set on the mounting base 1 is used to monitor the tilt angle and direction of the mounting base 1 relative to the horizontal plane in real time and with high precision. The leveling connector 6, usually in three or four sets, is set on the bottom surface of the mounting base 1 and distributed at the edge of the base to form a stable support plane, and acts directly on the concrete base 4 as an actuator. The control box is set on the mounting base 1 as the control center.

[0023] The control box is connected to the gyroscope 5 and the antenna assembly 3 to receive their measurement data or status and may provide feedback, as well as to each leveling connector 6, forming a closed-loop control system.

[0024] The leveling connector 6 is an actuator that realizes automatic lifting and adjusting. Its specific structure includes: an automatic adjusting motor 61 as a drive source; an adjusting ring seat 62 driven by the automatic adjusting motor 61 and transmitted through a precision gear set, the gear set transmitting the rotational motion of the motor to the adjusting ring seat 62, and usually having the function of deceleration and torque increase; an adjusting nut 63 fixedly mounted on the adjusting ring seat 62; an adjusting screw 64 threadedly engaged with the adjusting nut 63, the rotational motion of the adjusting screw 64 being converted into linear lifting and lowering motion; and a guide seat 65 mounted on the adjusting ring seat 62 to guide and limit the adjusting screw 64, the guide seat 65 ensuring that the adjusting screw 64 can only move linearly along its axial direction during thread engagement, without circumferential rotation or radial offset.

[0025] Example: During the automatic leveling process, the gyroscope 5 continuously monitors the attitude of the mounting base 1. Once the tilt angle is detected to exceed the preset threshold, the tilt angle and direction signals are transmitted to the control box. The control box calculates the angle difference that needs to be compensated according to a preset algorithm (such as PID control) and decomposes it into the lifting and lowering adjustment amount that each leveling connector 6 needs to make. The control box then sends a control command to the corresponding automatic adjustment motor 61. The automatic adjustment motor 61 starts and drives the adjustment ring seat 62 to rotate through the gear set. The rotation of the adjustment ring seat 62 drives the adjustment screw nut 63 on it to rotate synchronously. Since the adjustment screw 64 is restricted from rotating by the guide seat 65, the rotation of the adjustment screw nut 63 forces the adjustment screw 64 to make linear lifting and lowering movements within the guide seat 65. The support base plate at the bottom of the adjustment screw 64 rises and falls accordingly, thereby locally raising or lowering the corresponding support point of the mounting base 1. During this process, the gyroscope 5 continuously monitors the horizontal angle until the feedback signal from the gyroscope 5 indicates that the mounting base 1 has returned to a horizontal state. The control box stops the motor operation. Through the coordinated independent action of multiple sets of leveling connectors 6, the tilt of the mounting base 1 can be quickly and accurately eliminated, so that it always maintains a horizontal attitude.

[0026] As a preferred option, the mounting base 1 and the radome 2 are connected by a flange structure to ensure a stable and reliable connection and facilitate the installation, disassembly and maintenance of the radome 2.

[0027] As a preferred embodiment, the adjusting ring seat 62 is further provided with a manual adjusting ring sleeve 66 coaxially sleeved on its exterior. In special circumstances where the automatic adjustment system fails or manual fine-tuning is required, the operator can directly rotate the manual adjusting ring sleeve 66 using tools such as a wrench to manually drive the adjusting ring seat 62 to rotate, thereby driving the adjusting screw 64 to rise or fall, thus achieving emergency or fine manual leveling function.

[0028] As a preferred embodiment, the guide seat 65 is a ring-shaped plate sleeved on the outside of the adjusting screw 64, with a protruding guide block or key extending from its inner wall. Correspondingly, the adjusting screw 64 has a matching guide groove or keyway in its axial direction, forming a tight sliding pair to ensure that the adjusting screw 64 can only move linearly up and down along its axial direction.

[0029] As a preferred embodiment, the concrete base 4 is a rectangular concrete slab, serving as a stable foundation for the entire device. A positioning seat 67 is provided on the concrete base 4, and the supporting base plate of the leveling connector 6 is connected to the positioning seat 67 via a movable connection, preferably a ball joint structure.

[0030] As a preferred embodiment, the positioning seat 67 and the supporting base plate are connected by a spherical structure with the ball head and the socket engaging to achieve a movable connection. On the one hand, this allows the supporting base plate to rotate freely at multiple angles in the horizontal plane. On the other hand, it ensures that the supporting base plate and the concrete base 4 are always in surface contact or stable point contact, providing a solid and reliable transmission of supporting force.

[0031] In summary, this radar flow meter, through the coordinated operation of the gyroscope 5 (sensing), control box (computation), and modularly designed leveling connector 6, forms a closed-loop automatic leveling system. The modular leveling connector 6 is independently and distributed, and can accurately raise and lower each support point according to instructions to quickly eliminate tilt. This design significantly reduces the stringent requirements on the initial accuracy of the concrete base 4, and can automatically compensate for tilt caused by subsequent settlement or displacement, ensuring that the radar beam is perpendicular to the water surface and guaranteeing measurement accuracy. At the same time, the ball joint structure makes installation more convenient and reliable.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A radar flow meter, comprising a mounting base (1), the mounting base (1) being a cylindrical plate, a radar dome (2) disposed on the mounting base (1), an antenna assembly (3) connected inside the radar dome (2), the antenna assembly (3) corresponding to the bottom opening of the radar dome (2), characterized in that, It also includes a concrete base (4), on which an automatic leveling component is provided and connected to the concrete base (4); The automatic leveling component includes a gyroscope (5), the mounting base (1) is provided with the gyroscope (5), the bottom surface of the mounting base (1) is provided with at least two pairs of leveling connectors (6), the mounting base (1) is provided with a control box, and the control box is connected to the gyroscope (5), the antenna assembly (3) and the leveling connectors (6) respectively. The leveling connector (6) includes an automatic adjustment motor (61), the drive end of which is connected to an adjustment ring seat (62) via a gear set. An adjustment nut (63) is provided on the adjustment ring seat (62), and an adjustment screw (64) is assembled inside the adjustment nut (63). A guide seat (65) is assembled on the adjustment ring seat (62), and the guide seat (65) guides and limits the adjustment screw (64). A support base plate is movably connected to the bottom end of the adjustment screw (64).

2. The radar flow meter according to claim 1, characterized in that, The mounting base (1) and the radar dome (2) are connected by a flange.

3. A radar flow meter according to claim 2, characterized in that, The adjustment ring seat (62) is provided with a manual adjustment ring sleeve (66) on its outside.

4. A radar flow meter according to claim 3, characterized in that, The guide seat (65) is a ring-shaped plate sleeved outside the adjusting screw (64). The inner wall of the guide seat (65) extends into a guide block. The adjusting screw (64) has a guide groove in its axial direction to cooperate with the guide block.

5. A radar flow meter according to claim 4, characterized in that, The concrete base (4) is a rectangular plate, and a positioning seat (67) is provided on the concrete base (4) and is movably connected to the supporting base plate.

6. A radar flow meter according to claim 5, characterized in that, The positioning seat (67) is movably connected to the supporting base plate through a spherical structure.

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