CN218445551U

CN218445551U - Water-entry type vertical line flow velocity sensor

Info

Publication number: CN218445551U
Application number: CN202222669719.7U
Authority: CN
Inventors: 张喜; 于树利; 胡生; 张黎东; 王陆升; 李金玉; 杨鑫; 张家铭
Original assignee: Tangshan Modern Industry Control Technology Co Ltd
Current assignee: Tangshan Modern Industry Control Technology Co Ltd
Priority date: 2021-12-31
Filing date: 2022-10-11
Publication date: 2023-02-03
Anticipated expiration: 2032-10-11

Abstract

The utility model relates to a formula of entrying plumb line velocity of flow sensor belongs to channel water gaging monitoring technology field. The technical scheme of the utility model is that: a sensor bracket (7) is fixedly arranged at the front end of the long counterweight (3), and an acoustic Doppler flow velocity sensor (1) or an electromagnetic flow velocity sensor is arranged in the sensor bracket (7); the middle positions of two sides of the long balance weight (3) are rotatably connected with two support arms of the U-shaped hanging bracket (4) through corresponding rotating shafts (6), and the bent end of the U-shaped hanging bracket (4) is connected with the sling (5). The utility model has the advantages that: the floater flows along rivers the utility model discloses during the front end, U type gallows rotates backward through two pivots under the rivers impulsive force, and floaters such as pasture and water drop naturally along rivers to make the maintenance volume reduce greatly. The long counterweight and the acoustic Doppler flow velocity sensor or the electromagnetic flow velocity sensor arranged at the front end of the long counterweight can swing up and down, left and right along water flow, so that the measurement is more accurate.

Description

Water-entry type vertical line flow velocity sensor

Technical Field

The utility model relates to a formula of entrying plumb line velocity of flow sensor belongs to channel water gaging monitoring technology field.

Background

In the technical field of channel water measurement monitoring, a flow velocity area method is widely applied as a flow measuring technical means. As shown in fig. 3, the existing channel water measuring and monitoring device adopts a combination of a fish lead and a propeller flow velocity sensor, i.e. the propeller flow velocity sensor is installed at the front end of the traditional fish lead, two suspension points which are fixedly arranged in the front and back are arranged on the upper end face of the fish lead, the lower ends of two suspension cables are respectively connected with the two suspension points, the upper ends of the two suspension cables are connected with a pulley device, the pulley device is arranged on a sliding cable in a sliding manner, and the two ends of the sliding cable are fixed at the two sides of the river bank. Because the fish lead is connected with the two suspension cables through the two fixed suspension points, the fish lead and the propeller flow velocity sensor can only swing left and right along with water flow, cannot swing up and down, cannot swing completely along with the water flow, and accordingly inaccurate measurement is caused. Moreover, floaters such as pasture and water are easily hung on a blade of the propeller flow velocity sensor, and the floaters need to be removed, so that the workload of workers is increased, and automatic monitoring and unattended operation cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an income ability of swimming perpendicular line flow velocity sensor, the left and right sides of elongated counter weight rotates with two support arms of U type gallows to be connected, only is equipped with a hoisting point between U type gallows and the hoist cable, elongated counter weight and setting up in the acoustics Doppler flow velocity transducer or the electromagnetism flow velocity transducer of elongated counter weight front end can be along the rivers top and bottom left and right sides swing, measure more accurately; the floater flows along rivers the utility model discloses during the front end, U type gallows rotates backward through two pivots under the rivers impulsive force, and floaters such as pasture and water drop naturally along rivers, solve the above-mentioned problem that the background art exists.

The technical scheme of the utility model is that:

an underwater vertical line flow velocity sensor comprises a cross tail wing fixedly arranged at the rear end of a long counterweight, a sensor support is fixedly arranged at the front end of the long counterweight, and an acoustic Doppler flow velocity sensor or an electromagnetic flow velocity sensor is arranged in the sensor support; the middle positions of two sides of the long counterweight are rotatably connected with two support arms of the U-shaped hanging bracket through corresponding rotating shafts, and the sling is connected to the bending end of the U-shaped hanging bracket.

Preferably, the centre lines of the sensor mount, the elongate counterweight and the cross tail coincide.

Preferably, the sensor support is a cylinder, and the acoustic doppler flow velocity sensor or the electromagnetic flow velocity sensor is mounted in the cylinder.

Preferably, the front end face of the sensor support is an inclined plane which inclines downwards, the acoustic Doppler flow velocity sensor is positioned on the inclined plane, and when the acoustic Doppler flow velocity sensor is installed, the acoustic Doppler flow velocity sensor and the center line of the long counterweight can be installed and fixed at an angle of 0-45 degrees, so that measurement under different water conditions is facilitated.

The utility model relates to an acoustic Doppler velocity sensor and electromagnetism velocity sensor are the public technology of publicly knowing in this field.

The utility model has the advantages that: replace original screw velocity of flow sensor for acoustics Doppler velocity of flow sensor or electromagnetism velocity of flow sensor and measure, acoustics Doppler velocity of flow sensor or electromagnetism velocity of flow sensor set up in the sensor support of elongated counter weight front end, and the floater flows along rivers the utility model discloses during the front end, U type gallows rotates backward through two pivots under the rivers impulsive force, and floaters such as pasture and water drop naturally along rivers to make the maintenance volume reduce greatly, let simultaneously the utility model discloses be suitable for automatic monitoring, unmanned on duty more. The two sides of the long counterweight are rotatably connected with the two support arms of the U-shaped hanging bracket, only one hanging point is arranged between the U-shaped hanging bracket and the sling, and the long counterweight and the acoustic Doppler flow velocity sensor or the electromagnetic flow velocity sensor arranged at the front end of the long counterweight can swing up and down, left and right along water flow, so that the measurement is more accurate.

Drawings

FIG. 1 is an isometric view of an embodiment of the present invention;

FIG. 2 is a front view of the embodiment of the present invention;

FIG. 3 is a schematic view of the use state of the propeller flow velocity sensor according to the background art of the present invention;

in the figure: the acoustic Doppler flow velocity sensor comprises an acoustic Doppler flow velocity sensor 1, a cross tail wing 2, a long counterweight 3, a U-shaped hanging bracket 4, a sling 5, a rotating shaft 6, a sensor support 7 and an inclined plane 8.

Detailed Description

The invention is further described with reference to the following figures and examples:

with reference to fig. 1-2, in this embodiment, an underwater vertical line flow velocity sensor includes a sensor support 7 and a cross-shaped tail fin 2 fixedly disposed at the front end and the rear end of a long counterweight 3, respectively, the sensor support 7 is a cylindrical body, an acoustic doppler flow velocity sensor 1 is disposed in the cylindrical body, a front end surface of the sensor support 7 is an inclined surface 8 inclined downward, a probe of the acoustic doppler flow velocity sensor 1 is located on the inclined surface and flush with the inclined surface, and the probe of the acoustic doppler flow velocity sensor 1 forms an angle of about 45 degrees with a center line of the long counterweight 3; the middle parts of two sides of the long counterweight 3 are respectively connected with two support arms of the U-shaped hanging bracket 4 through corresponding rotating shafts 6 in a rotating way, and the bent end of the U-shaped hanging bracket 4 is connected with a sling.

The number of suspension points of the sling and the long counterweight 3 is reduced by arranging the U-shaped hanging bracket 4, and only one suspension point and one sling are needed. Two support arms of U type gallows 4 rotate with elongated counter weight 3 through pivot 6 to be connected, and under the impact of rivers, elongated counter weight 3 can be around U type gallows 4 luffing motion, simultaneously because blockking of U type gallows 4 department of buckling, elongated counter weight 3 also can not the swing range too big.

The long counterweight is designed to be streamline, so that the water flow resistance is reduced. Referring to fig. 2, in this embodiment, the elongated counterweight 3 is divided into three parts, namely a front part, a middle part and a rear part, the middle part is a cylinder, the front part and the rear part are truncated cones integrally formed with the cylinder, the truncated cone on the front side is fixedly connected with the sensor bracket, and the truncated cone on the rear side is fixedly connected with the cross-shaped tail wing 2.

The utility model discloses a use: will through hoist cable 5 the utility model discloses drop to the aquatic, velocity of flow detection is done to rivers to acoustics Doppler current sensor 1 or electromagnetism current velocity transducer. During detection, under the impact of water flow, the long balance weight 3 can drive the acoustic Doppler flow velocity sensor 1 or the electromagnetic flow velocity sensor in the sensor support 7 to swing up and down and left and right along with the direction of the water flow, so that measurement can be always carried out along with the direction of the water flow, and the method is more accurate. When floaters such as pasture and water are hung the utility model discloses during the front end, U type gallows 4 rotates backward through two pivots 6 under the rivers impulsive force, and floaters such as pasture and water are coming off naturally along with rivers to make the maintenance load reduce greatly, make the utility model discloses more be applicable to automatic monitoring, unmanned on duty.

Claims

1. The utility model provides an income ability of swimming perpendicular line flow velocity sensor, contains fixed cross fin (2) that set up in elongated counter weight (3) rear end, its characterized in that: a sensor bracket (7) is fixedly arranged at the front end of the long counterweight (3), and an acoustic Doppler flow velocity sensor (1) or an electromagnetic flow velocity sensor is arranged in the sensor bracket (7); the middle positions of two sides of the long balance weight (3) are rotatably connected with two support arms of the U-shaped hanging bracket (4) through corresponding rotating shafts (6), and the bent end of the U-shaped hanging bracket (4) is connected with the sling (5).

2. An incoming vertical flow rate sensor as claimed in claim 1 wherein: the central lines of the sensor bracket (7), the long counterweight (3) and the cross-shaped tail wing (2) are superposed.

3. An incoming vertical flow rate sensor as claimed in claim 1 or claim 2 wherein: the sensor support (7) is a cylinder, and the acoustic Doppler flow velocity sensor (1) or the electromagnetic flow velocity sensor is arranged in the cylinder.

4. An incoming vertical flow rate sensor as claimed in claim 3 wherein: the front end face of the sensor support (7) is a slope (8) which inclines downwards, the acoustic Doppler flow velocity sensor (1) is located on the slope, and the center line of the acoustic Doppler flow velocity sensor (1) and the center line of the long counterweight (3) form an angle of 0-45 degrees.