CN219996249U

CN219996249U - Hydrodynamic flow measuring instrument

Info

Publication number: CN219996249U
Application number: CN202320279144.XU
Authority: CN
Inventors: 程志伟
Original assignee: Suzhou Gezhi Science And Education Instrument Equipment Manufacturing Co ltd
Current assignee: Suzhou Gezhi Science And Education Instrument Equipment Manufacturing Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-11-10
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses a hydrodynamic flow measuring instrument which comprises a mounting base, wherein a pressure stabilizing water tank is arranged above the mounting base, one side of the pressure stabilizing water tank is provided with a water return pipe, a flowmeter is arranged on the water return pipe, the tail end of the water return pipe is provided with a water outlet pipe through a flow regulating valve, the tail end of the water outlet pipe extends to the position below the liquid level of the water return tank, the water return tank is communicated with the circulating water tank through a circulating water pipe at the bottom, and the circulating water tank is communicated with the pressure stabilizing water tank through a water inlet pipe and a water outlet pipe. The water outlet end of the sewer pipe in the device stretches into the water return tank below, so that the two sides of the fluid at the detection position of the ultrasonic flowmeter are all liquid, and the water outlet of the existing sewer pipe is in air, thereby enabling the fluid kinetic energy at the two sides of the detection position of the ultrasonic flowmeter to be the same, reducing the generation of bubbles and improving the accuracy of flow detection.

Description

Hydrodynamic flow measuring instrument

Technical Field

The utility model relates to the field of hydrodynamic experimental equipment, in particular to a hydrodynamic flow measuring instrument.

Background

In the process of carrying out hydrodynamic experiments, such as determination of a Raney coefficient, various parameters of fluid, such as fluid speed, fluid density, hydrodynamic viscosity and the like, are required to be determined, and in the process of determining the parameters of the fluid, an ultrasonic flowmeter is often required to be used, wherein the ultrasonic flowmeter has a defect that air bubbles cannot exist in the measured liquid, if the air bubbles exist, the measured data cannot be accurate enough, meanwhile, the existing measuring instrument is energy-saving, environment-friendly and experiment-material-saving, the fluid is recycled, when the fluid enters a water return tank from a sewer pipe, the fluid kinetic energy of two sides of the sewer pipe is different, and the air bubbles easily appear when the fluid enters the water return tank, so that the accuracy of measurement is influenced, and therefore, the hydrodynamic flowmeter is still required.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a hydrodynamic flowmeter, which comprises a mounting base, wherein a pressure stabilizing water tank is arranged above the mounting base, a water return pipe is arranged on one side of the pressure stabilizing water tank, and a flowmeter is arranged on the water return pipe;

the tail end of the return water pipe is provided with a sewer pipe through a flow regulating valve, the tail end of the sewer pipe stretches into the lower part of the liquid level of the return water tank, the return water tank is communicated with a circulating water tank through a circulating water pipe at the bottom, and the circulating water tank is communicated with a pressure stabilizing water tank through a water inlet pipe and a water outlet pipe.

As further description of the above technical solution, a submersible pump is disposed in the circulation water tank, and the submersible pump is connected with a water inlet pipe at the bottom of the pressure stabilizing water tank, and is used for pumping the liquid in the circulation water tank into the pressure stabilizing water tank;

and an overflow pipe below the pressure stabilizing water tank is positioned above the circulating water tank.

As a further description of the above technical solution, the water inlet pipe is provided with a water inlet regulating valve at the outside.

As further description of the technical scheme, the inside of the pressure stabilizing water tank is sequentially provided with an overflow plate and a pressure stabilizing pore plate;

the overflow pipe is arranged below a space formed by the overflow plate and the inner wall of the pressure stabilizing water tank;

the water inlet pipe is arranged below a space formed by the opposite surfaces of the overflow plate and the pressure stabilizing pore plate.

As a further description of the above technical solution, a tracer tank is disposed above the regulated water tank, and the tracer tank is communicated with the regulated water tank through a stop valve below.

As a further description of the above technical solution, the water return tank is located at one side of the installation base, and the sewer pipe extends out of one side of the installation base.

As a further description of the above technical solution, a fixing bracket is disposed below the water return pipe, and the bottom of the fixing bracket is fixed above the mounting base.

As a further description of the above technical solution, the regulated water tank is a tank body composed of a plurality of organic glass plates.

As a further description of the above technical solution, the mounting base is composed of a plurality of stainless steel movable brackets.

The utility model has the technical effects and advantages that:

1. the water outlet end of the sewer pipe stretches into the water return tank below, so that both sides of fluid at the detection position of the ultrasonic flowmeter are liquid, and the water outlet of the existing sewer pipe is in air, so that the fluid kinetic energy at both sides of the detection position of the ultrasonic flowmeter is the same, the generation of bubbles can be reduced, the accuracy of flow detection is improved, the fluid entering the water return tank enters the circulating water tank through the circulating water pipe below the water return tank, and the fluid is pumped into the pressure stabilizing water tank again through the submersible pump in the circulating water tank through the water inlet pipe, thereby achieving the effects of recycling the fluid, saving energy and reducing emission.

Description of the drawings:

fig. 1 is a schematic structural diagram of a hydrodynamic flowmeter according to an embodiment of the present utility model.

Legend description:

1. a mounting base; 2. a pressure stabilizing water tank; 3. a water return pipe; 4. a flow regulating valve; 5. a water supply pipe; 6. a water return tank; 7. a circulating water pipe; 8. a circulation water tank; 9. submersible pump; 10. a water inlet pipe; 11. an overflow pipe; 12. a water inlet regulating valve; 13. an overflow plate; 14. a pressure-stabilizing orifice plate; 15. a tracer tank; 16. a stop valve; 17. a fixed bracket; 18. a flow meter.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Referring to fig. 1, an embodiment of the present utility model is provided: the utility model provides a hydrodynamic flowmeter, including installation base 1, installation base 1 is that stainless steel removes the support square tube and constitutes, its size is 1500 x 450 x 700mm, its size also can be adjusted according to the use needs and adapt to, steady voltage water tank 2 is installed to the position that the top of installation base 1 is close to the left side, steady voltage water tank 2 is the organic glass water tank that has the closing cap, its size is 350 x 180 x 400mm, also can adjust the size according to actual demand, and steady voltage water tank 2 sets up to transparent structure, can see the inside state of steady voltage water tank 2 more conveniently. The utility model provides a water pump, including steady voltage water tank 2, install the wet return 3 on one side, install flowmeter 18 on the wet return 3, install down water pipe 5 through flow control valve 4 at the end of wet return 3, the end of down water pipe 5 stretches into to the water level below of water return 6, water return 6 is linked together with circulation tank 8 through circulation pipe 7 of bottom, circulation tank 8 is linked together through the business turn over water pipe with steady voltage water tank 2, when fluid flows from steady voltage water tank 2 and flows along wet return 3 towards down water pipe 5, through inserting flowmeter 18 to the inside of wet return 3, specific ultrasonic flowmeter detects each parameter of fluid in the wet return 3, and because the water outlet end of down water pipe 5 stretches into in the water return 6 of below, make the both sides of ultrasonic flowmeter detects the fluid be liquid, and the delivery port of non-existing down water pipe is in the air, thereby can make the fluid kinetic energy of ultrasonic flowmeter detect the both sides be the same, thereby reducible bubble's production, improve the accuracy of flow detection, and the fluid that gets into in the water return 6 enters into circulation tank 8 through circulation pipe 7 below water return 6 and enters into circulation tank 8, and circulate pump 9 through circulating pump 10 in order to reach the energy-conserving effect that the fluid can be discharged into water tank 2 through the water tank 2 again.

Referring to fig. 1, the drainage flow of the return pipe 3 is controlled through the flow regulating valve 4 between the return pipe 3 and the sewer pipe 5, and the water inlet regulating valve 12 is arranged outside the water inlet pipe 10, and the flow entering the regulated water tank 2 through the control of the water inlet pipe 10 is controlled by controlling the opening of the water inlet regulating valve 12, and the overflow plate 13, the regulated water plate 14, the overflow pipe below the regulated water tank 2, and the water inlet pipe 10, are arranged below the space formed by the overflow plate 13 and the inside of the regulated water tank 2, and the water inlet pipe 10, after entering the regulated water tank 2 from the water inlet pipe 10, flows into the circulating water tank 8 below from the overflow pipe 11 after the water level in the regulated water tank 2 exceeds the height of the overflow plate 13, so as to ensure that the water level in the regulated water tank 2 is always in a relatively stable state, so that the pressure of the regulated water tank 2 is kept in a relatively stable state, and the accuracy of experiments is facilitated.

And be provided with tracer jar 15 in steady voltage water tank 2 top, tracer jar 15 is linked together with steady voltage water tank 2 through stop valve 16, opens stop valve 16 and can throw into the water with the tracer in the tracer jar 15, more is convenient for observe the flow of fluid, improves the convenience of observation.

Referring to fig. 1, the water return tank 6 is located at one side of the installation base 1, and the sewer pipe 5 extends out of one side of the installation base 1, so that the sewer pipe 5 is located above the water return tank 6, so that the collected and recovered fluid is convenient to collect, while in other possible embodiments, the water return tank 6 may be installed at other positions of the installation base 1, as long as the sewer pipe 5 is kept above the water return tank 6.

Referring to fig. 1, in other embodiments, a fixing bracket 17 is disposed below the water return pipe 3, and the bottom of the fixing bracket 17 is fixed above the mounting base 1, where the fixing bracket 17 plays a role in supporting the water return pipe 3, so that the situation that the pipe body bends downward due to the overlong length of the water return pipe 3 and the dead weight of the water return pipe 3, so as to affect the fluidity of the internal liquid can be effectively reduced.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The hydrodynamic flow measuring instrument comprises a mounting base (1), and is characterized in that a steady-pressure water tank (2) is mounted above the mounting base (1), a water return pipe (3) is mounted on one side of the steady-pressure water tank (2), and a flowmeter (18) is mounted on the water return pipe (3);

the tail end of the return water pipe (3) is provided with a sewer pipe (5) through a flow regulating valve (4), the tail end of the sewer pipe (5) stretches into the lower part of the liquid level of the return water tank (6), the return water tank (6) is communicated with a circulating water tank (8) through a circulating water pipe (7) at the bottom, and the circulating water tank (8) is communicated with the pressure stabilizing water tank (2) through a water inlet pipe and a water outlet pipe.

2. Hydrodynamic flowmeter according to claim 1, characterized in that a submersible pump (9) is arranged inside the circulation tank (8), the submersible pump (9) being connected to a water inlet pipe (10) at the bottom of the regulated tank (2) for pumping the liquid in the circulation tank (8) into the regulated tank (2);

an overflow pipe (11) below the pressure stabilizing water tank (2) is positioned above the circulating water tank (8).

3. Hydrodynamic flow meter according to claim 2, characterized in that the outside of the inlet pipe (10) is provided with an inlet regulator valve (12).

4. Hydrodynamic flowmeter according to claim 2, characterized in that the inside of the regulated water tank (2) is provided with an overflow plate (13) and a regulated orifice plate (14) in sequence;

the overflow pipe (11) is arranged below a space formed by the overflow plate (13) and the inner wall of the pressure stabilizing water tank (2);

the water inlet pipe (10) is arranged below a space formed by the opposite surfaces of the overflow plate (13) and the pressure stabilizing pore plate (14).

5. Hydrodynamic flowmeter according to claim 1, characterized in that a tracer tank (15) is arranged above the regulated water tank (2), the tracer tank (15) being in communication with the regulated water tank (2) via a lower shut-off valve (16).

6. Hydrodynamic flowmeter according to claim 1, characterized in that the return water tank (6) is located at one side of the mounting base (1), and the sewer pipe (5) extends out of one side of the mounting base (1).

7. Hydrodynamic flowmeter according to claim 1, characterized in that a fixed bracket (17) is provided below the return pipe (3), the bottom of the fixed bracket (17) being fixed above the mounting base (1).

8. Hydrodynamic flowmeter according to claim 1, characterized in that the regulated water tank (2) is a tank consisting of a plurality of plexiglas plates.

9. Hydrodynamic flowmeter according to claim 1, characterized in that said mounting base (1) is composed of a plurality of stainless steel mobile brackets.