CN219104072U

CN219104072U - Portable channel flowmeter

Info

Publication number: CN219104072U
Application number: CN202222947686.8U
Authority: CN
Inventors: 方益民; 王志坚; 何鲁超
Original assignee: Yiwu Water Treatment Co ltd
Current assignee: Yiwu Water Treatment Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-05-30
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses a portable channel flowmeter, which relates to the technical field of channel flow and comprises a single-chip microcomputer controller, wherein an LCD (liquid crystal display) display is fixedly arranged above the single-chip microcomputer controller, the LCD display is electrically connected with the single-chip microcomputer controller, the single-chip microcomputer controller is electrically connected with an acoustic wave sensor, an acoustic wave generator is fixedly arranged on the outer side of the acoustic wave sensor, the acoustic wave generator is electrically connected with the single-chip microcomputer controller, a wire is inserted into the input end of the single-chip microcomputer controller, the wire is electrically connected with the single-chip microcomputer controller, and a flow rate module is fixedly arranged at the other end of the wire.

Description

Portable channel flowmeter

Technical Field

The utility model belongs to the field of channel flow, and particularly relates to a portable channel flowmeter.

Background

The open channel flow meter is divided into an ultrasonic open channel flow meter, a Doppler open channel flow meter and a multichannel open channel flow meter according to different measurement principles, and the open channel flow meter and the multichannel open channel flow meter are all system monitoring devices for measuring fluid flow in an open channel or a channel.

The existing flowmeter has the disadvantages of large volume, inconvenient carrying and low accuracy of flow detection results.

Disclosure of Invention

The utility model provides a portable channel flowmeter for solve current flowmeter on the one hand the volume is great, carry very inconvenient, on the other hand to the lower technical problem of the testing result precision of flow.

In order to solve the technical problems, the portable channel flowmeter provided by the utility model comprises a single-chip microcomputer controller, wherein an LCD display is fixedly arranged above the single-chip microcomputer controller, the LCD display is electrically connected with the single-chip microcomputer controller, the single-chip microcomputer controller is electrically connected with an acoustic wave sensor, an acoustic wave generator is fixedly arranged on the outer side of the acoustic wave sensor, the acoustic wave generator is electrically connected with the single-chip microcomputer controller, a wire is inserted into the input end of the single-chip microcomputer controller, the wire is electrically connected with the single-chip microcomputer controller, and the other end of the wire is fixedly provided with a flow velocity module.

Preferably, the flow rate module comprises a shell, a hub, blades, permanent magnets and Hall switches, drain holes are symmetrically formed in two sides of the shell, the hub is rotatably installed in the shell, the blades are fixedly installed on the outer side of the hub, the permanent magnets are fixedly installed above the hub, the Hall switches are fixedly installed at positions, corresponding to the permanent magnets, of the shell, and the Hall switches are electrically connected with a singlechip controller.

Preferably, the hall switch is arranged in the same direction and the same radial length position as the permanent magnet.

Preferably, a coupler is fixedly arranged at the inner lower part of the shell, a bearing is arranged between the hub and the coupler, and the hub is rotationally connected with the coupler.

Compared with the prior art, the utility model has the following advantages:

according to the portable channel flowmeter, the ultrasonic generator is used for emitting 150MHz high-frequency band sound waves, the sound waves are emitted, reflected by the water surface and received by the ultrasonic sensor, the cross-sectional area of the liquid level can be obtained according to the sound velocity and the water surface distance of time difference received by emission, the flow velocity module is placed in water, the water flow passes through the blade from the drain hole at one side to drive the hub to rotate, the hub rotates to drive the permanent magnet fixedly connected with the hub to rotate, the permanent magnet and the Hall switch generate differential pulse electric signals along with the relative rotation of the permanent magnet, the Hall switch generates differential pulse electric signals and transmits the differential pulse electric signals to the singlechip controller, so that the instantaneous flow velocity of water flow can be obtained, and the cross-sectional area or the flow velocity of the water flow can be combined, simplicity, rapidness, high precision and small structure and portability.

Drawings

FIG. 1 is a block diagram of a portable channel flowmeter of the present utility model;

FIG. 2 is a side view block diagram of a portable channel flowmeter according to the present utility model;

FIG. 3 is a block diagram of a flow rate module in a portable channel flowmeter according to the present utility model;

reference numerals in the drawings: 1. a singlechip controller; 2. an LCD display; 3. an acoustic wave generator; 4. an acoustic wave sensor; 5. a wire; 6. a flow rate module; 61. a housing; 62. permanent magnet; 63. a coupling; 64. a bearing; 65. a blade; 66. a hub; 67. and a Hall switch.

Detailed Description

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a portable channel flowmeter, including singlechip controller 1, singlechip controller 1 top fixed mounting has LCD display 2, LCD display 2 electric connection singlechip controller 1, singlechip controller 1 electric connection acoustic wave sensor 4, acoustic wave generator 3 of acoustic wave sensor 4 outside fixed mounting, acoustic wave generator 3 electric connection singlechip controller 1, singlechip controller 1 input has installed wire 5, wire 5 electric connection singlechip controller 1, wire 5 other end fixed mounting velocity of flow module 6.

Further, the flow rate module 6 includes a casing 61, a hub 66, a vane 65, a permanent magnet 62 and a hall switch 67, drain holes are symmetrically formed on two sides of the casing 61, the hub 66 is rotatably installed in the casing 61, the vane 65 is fixedly installed on the outer side of the hub 66, the permanent magnet 62 is fixedly installed above the hub 66, the hall switch 67 is fixedly installed at a position corresponding to the permanent magnet 62 in the casing 61, and the hall switch 67 is electrically connected with the singlechip controller 1.

Further, the hall switch 67 is disposed in the same direction and the same radial length position as the permanent magnet 62.

Further, a coupling 63 is fixedly mounted below the inside of the housing 61, a bearing 64 is provided between the hub 66 and the coupling 63, and the hub 66 is rotatably connected to the coupling 63.

Working principle:

firstly, a 150MHz high-frequency band sound wave is sent out through the ultrasonic generator 3, emitted and reflected by the water surface and received by the ultrasonic sensor 4, according to the sound velocity and the water surface distance of the time difference received by emission, the cross-sectional area of the liquid surface can be obtained according to the fixed height and width of a channel, the flow velocity module 6 is placed in water, the water flow passes through the blade 65 from one side of the water drainage hole to drive the hub 66 to rotate, the hub 66 rotates to drive the permanent magnet 62 fixedly connected with the hub to rotate, along with the relative rotation of the permanent magnet 62, the magnetism between the permanent magnet 62 and the Hall switch 67 changes, the Hall switch 67 generates a differential pulse electric signal and propagates to the singlechip controller 1, the instantaneous flow velocity of the water flow can be obtained, and then the cross-sectional area or the flow velocity of the water flow can be combined, the device is simple and quick, the device is high in accuracy, and meanwhile the structure is small and convenient to carry.

Claims

1. The utility model provides a portable channel flowmeter, includes singlechip controller (1), its characterized in that: the utility model discloses a single chip microcomputer controller, including single chip microcomputer controller (1), LCD display (2) are installed to single chip microcomputer controller (1) top fixed mounting, LCD display (2) electric connection single chip microcomputer controller (1), single chip microcomputer controller (1) electric connection acoustic wave sensor (4), acoustic wave generator (3) are installed in the outside fixed mounting of acoustic wave sensor (4), acoustic wave generator (3) electric connection single chip microcomputer controller (1), lead (5) are installed to single chip microcomputer controller (1) input, lead (5) electric connection single chip microcomputer controller (1), lead (5) other end fixed mounting velocity of flow module (6).

2. The portable channel flowmeter according to claim 1, wherein the flow rate module (6) comprises a housing (61), a hub (66), a blade (65), a permanent magnet (62) and a hall switch (67), drain holes are symmetrically formed in two sides of the housing (61), the hub (66) is rotatably mounted in the housing (61), the blade (65) is fixedly mounted on the outer side of the hub (66), the permanent magnet (62) is fixedly mounted above the hub (66), the hall switch (67) is fixedly mounted in a position corresponding to the permanent magnet (62) in the housing (61), and the hall switch (67) is electrically connected with the single-chip microcomputer controller (1).

3. The portable channel flowmeter of claim 2, wherein the hall switch (67) is disposed in the same direction and at the same radial length as the permanent magnet (62).

4. The portable channel flowmeter according to claim 2, wherein a coupling (63) is fixedly mounted below the housing (61), a bearing (64) is provided between the hub (66) and the coupling (63), and the hub (66) is rotatably connected with the coupling (63).