LU503377B1

LU503377B1 - Hydrodynamics presentation device

Info

Publication number: LU503377B1
Application number: LU503377A
Authority: LU
Inventors: Zhenghe Wang
Original assignee: Univ Zhengzhou Aeronautics
Priority date: 2023-01-19
Filing date: 2023-01-19
Publication date: 2023-07-19

Abstract

The invention discloses a hydrodynamics presentation device, which comprises a hydrodynamics demonstration box. The observation window is installed to one side of hydrodynamics demonstration box, control panel is installed to one side of observation window, the inlet tube is installed at hydrodynamics demonstration box's top, colour water reagent bottle is installed to one side of inlet tube, hydrodynamics demonstration box's internally mounted has the intake chamber, install the buffer block on one side inner wall of intake chamber, the glass developmental tube is installed to the lower part of intake chamber, colour water reagent bottle passes through the connecting pipe and is connected with the glass tube, install the solenoid valve on the connecting pipe, the socle department of glass tube is connected with the sewer through the outlet pipe, install on the outlet pipe from dynamic formula flow control valve, flow sensor is installed on the control valve.

Description

DESCIPTION 509377

HYDRODYNAMICS PRESENTATION DEVICE

TECHNICAL FIELD

The present invention belongs to the technical field of of industrial production, and in particular to a hydrodynamics presentation device.

BACKGROUND TECHNOLOGY

The Reynolds experiment instrument feeds water into the constant-pressure area in the constant-pressure water tank through the water inlet pipe, the water in the constant-pressure area overflows to the overflow area through the overflow plate to discharge overflow water, and the water surface height, namely the water pressure, of the constant-pressure area is kept constant; and then the tracer flows to the center of the real-face pipe inlet at the bottom of the constant-pressure area through the flow guide pipe of the tracer container on the upper portion of the constant-pressure area and the needle head at the end of the constant-pressure area. The flow rate of water in the experimental tube can be adjusted to observe the flow of the tracer in the experimental tube, so that the laminar flow and turbulence of the liquid and the transition state between the laminar flow and the turbulent flow are demonstrated, and the critical Reynolds number can be measured.

An existing Reynolds experiment instrument is difficult to operate, and experimental data is inaccurate due to the fact that the water flow velocity is manually adjusted.

SUMMARY OF THE INVENTION

An object of the present disclosure is to provide a hydrodynamics presentation device to solve the problems set forth in the above background art.

To achieve the above object, the present disclosure provides the following technical solutions: the hydrodynamics demonstration box is connected with a power plug through a wire, a plurality of supporting legs are installed at the bottom of the hydrodynamics demonstration box, an observation window is installed on one side of the hydrodynamics demonstration box, a control panel is installed on one side of the observation window, the PLC is installed in the control panel, a water inlet pipe is installed at the top of the hydrodynamics demonstration box, a color water reagent bottle is installed on one side of the water inlet pipe, and a water inlet groove is installed in the hydrodynamics demonstration box; a buffer block is mounted on the inner wall of one side of the water inlet tank; the bottom of the water inlet pipe is mounted on the inner wall of one side of the water inlet tank; a glass test tube is mounted at the lower part of the water inlet tank; the color water reagent bottle is connected with the glass test tube through a connecting pipe; the connecting pipe is mounted at an opening of the glass test tube; an automatic flow control valve is mounted on the water outlet pipe; a flow sensor is mounted on one side of the automatic flow control valve; and a high-precision water flow speed meter is mounted on one side of the flow sensor

Further, the display screen, the control button, the automatic flow control valve, the flow sensor, the high-precision water flow speed meter and the electromagnetic valve are all electrically connected to the PLC controller.

Further, the control panel is movably connected to the hydrodynamics demonstration box through a bolt.

Further, the glass test tube and the hydrodynamics demonstration box are fixed by welding.

Further, a feeding port is installed at the top of the color water reagent bottle, HUS03377 and a sealing cover is installed on the feeding port.

Compared with the prior art, the beneficial effects of the present invention are: in order to keep the water level constant and avoid fluctuation, water flows into the water inlet groove through the water inlet pipe and then overflows, the buffer block installed on the water inlet groove can further slowdown the water flow speed to ensure that the water level is constant and avoids fluctuation, the glass test tube is immersed in the hydrodynamics demonstration box at a horizontal position, water enters the glass test tube through the expansion opening, is metered by the flow sensor through the water outlet pipe and then is discharged into a sewer, the water flow speed can enable the PLC controller to control the automatic flow control valve to adjust through the control panel, and the high- precision water flow speed meter tests the water flow speed. The PLC controls the flow rate of the water flow in the current state tested by the flow sensor and the high-precision water flow speed meter to be displayed on the display screen, so that the user can conveniently check in real time, the color water reagent bottle is filled with the color water, and the color water is injected into the glass test tube under the action of the gravity of the color water reagent bottle, so that the flowing state of the water in the glass test tube can be observed, and the device is convenient to use, simple to operate and accurate in experimental data.

BRIEF DESCRIPTION OF THE DRAWINGS LUS03377

FIG. 1 is a schematic diagram of an overall structure of the present invention;

FIG. 2 is a schematic diagram of an overall internal structure of the present invention;

FIG. 3 is a schematic diagram of an internal structure of a control panel of the present invention;

In the drawings: 1-hydromechanics demonstration Box; 2-support foot; 3- automatic flow control valve; 4-flow sensor; 5-high-precision water flow speed meter; 6-water outlet pipe; 7-water inlet pipe; 8-color water reagent bottle; 9 electromagnetic valves; 10-power plug; 11-connecting pipe; 12-control panel; 13-observation window; 14-sewer; 15-glass test tube; 16-buffer block; 17-water inlet tank; and 18-PLC controller.

SPECIFIC EMBODIMENTS

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

Referring to FIGS. 1-3, a technical solution is provided: an observation window 13 is mounted on one side of the hydrodynamics demonstration box 1; a control panel 12 is mounted on one side of the observation window 13; the PLC 18 is mounted in the control panel 12; a water inlet pipe 7 is mounted at the top of the hydrodynamics demonstration box 1; a color water reagent bottle 8 is mounted on one side of the water inlet pipe 7; and a water inlet groove 17 is mounted in the hydrodynamics demonstration box 1; a buffer block 16 is mounted on the inner wall of one side of the water inlet tank 17; the bottom of the water inlet pipe 7 is mounted on the inner wall of one side of the water inlet HUS03377 tank 17; a glass test tube 15 is mounted on the lower part of the water inlet tank 17; the color water reagent bottle 8 is connected with a sewer 14 through a water outlet pipe 6; an automatic flow control valve 3 is mounted on the water outlet pipe 6; a flow sensor 4 is mounted on one side of the automatic flow control valve 3; and a high-precision water flow speed meter 5 is mounted on one side of the flow sensor 4.

Further, the display screen, the control button, the automatic flow control valve 3, the flow sensor 4, the high-precision water flow speed meter 5 and the electromagnetic valve 9 are all electrically connected to the PLC controller 18 to facilitate signal transmission.

Further, the control panel 12 is movably connected to the hydrodynamics demonstration box 1 through a bolt, which is convenient to disassemble and facilitates maintenance and maintenance of the control panel 12.

Further, the glass test tube 15 and the hydrodynamics demonstration box 1 are fixed by welding to ensure the stability of the connection.

Further, a feeding port is installed at the top of the color water reagent bottle 8, and a sealing cover is installed on the feeding port to facilitate feeding of color water.

PRINCIPLE OF OPERATION: in order to keep the water level constant and avoid fluctuation, the buffer block 16 installed on the water inlet groove 17 can further slowdown the water flow speed so as to ensure that the water level is constant and avoid fluctuation, the glass test tube 15 is immersed in the hydrodynamics demonstration box 1 at a horizontal position, the water enters the glass test tube 15 through the expansion port and is metered by the flow sensor 4 through the water outlet pipe 6 and then discharged into the sewer 14, the water flow speed can enable the PLC controller 18 to control the automatic flow control valve 3 to adjust through the control panel 12, and the high- precision water flow speed meter 5 tests the water flow speed. The PLC 18 controls the flow rate of the water flow in the current state tested by the flow sensor 4 and the high-precision water flow velocity meter 5 to be displayed on HUS03377 the display screen, which is convenient for a user to view in real time, and the color water reagent bottle 8 is filled with color water, and is injected into the glass test tube 15 by means of the gravity of the color water reagent bottle 8, so that the flowing state of water in the glass test tube 15 can be observed

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

CLAIMS LU503377

1.A hydrodynamics presentation device, comprising a hydrodynamics demonstration box (1), characterized in that: a plurality of support legs (2) are mounted at the bottom of the hydrodynamics demonstration box (1), an observation window (13) is mounted on one side of the hydrodynamics demonstration box (1), a control panel (12) is mounted on one side of the observation window (13), the control panel (12) is composed of a display screen, a control button, an indicator light and a PLC (18), the PLC (18) is mounted inside the control panel (12), and a water inlet pipe (7) is mounted at the top of the hydrodynamics demonstration box (1); a color water reagent bottle (8) is mounted on one side of the water inlet pipe (7); a water inlet tank (17) is mounted in the hydrodynamics demonstration box (1); a buffer block (16) is mounted on the inner wall of one side of the water inlet tank (17); the bottom of the water inlet pipe (7) is mounted on the inner wall of one side of the water inlet tank (17); a glass test tube (15) is mounted at the lower part of the water inlet tank (17); the color water reagent bottle (8) is connected with the glass test tube (15) through a connecting pipe (11); the connecting pipe (11) is mounted at a pipe opening of the glass test tube (15); an electromagnetic valve (9) is mounted on the connecting pipe (11); and the bottom of the glass test tube (15) is connected with a sewer (14) through a water outlet pipe (6); an automatic flow control valve (3) is mounted on the water outlet pipe (6); a flow sensor (4) is mounted on one side of the automatic flow control valve (3); and a high- precision water flow speed meter (5) is mounted on one side of the flow sensor

(4).

2. The hydrodynamics presentation device according to claim 1, wherein the HUS03377 display screen, the control button, the automatic flow control valve (3), the flow sensor (4), the high-precision water flow velocity meter (5) and the solenoid valve (9) are all electrically connected to the PLC controller (18).

3. The hydrodynamics presentation device according to claim 1, wherein the control panel (12) is movably connected to the hydrodynamics demonstration box (1) by means of a bolt.

4. The hydrodynamics presentation device according to claim 1, wherein the glass test tube (15) and the hydrodynamics demonstration box (1) are fixed by welding.

5. The hydrodynamics presentation device according to claim 1, wherein a feed port is mounted at the top of the color water reagent bottle (8), and a cover is mounted on the feed port.