Reynolds experiment device

Abstract

The utility model relates to the technical field of Reynolds experiments, in particular to a Reynolds experiment device which comprises a head tank and a circulating water tank, a tracer feeding tank is connected above the side face of the head tank, the lower portion of the tracer feeding tank is communicated with the head tank through a first pipeline, and the first pipeline is provided with a first valve, a drip chamber and a first flow regulator from top to bottom. The bottom of the head tank is communicated with the water inlet through a second pipeline, the bottom of the head tank is communicated with the water outlet through a third pipeline, and the drip chamber and the first flow regulator are of the same structure as a drip chamber and a flow regulator on the medical infusion apparatus. The utility model stabilizes the thickness and the flow of the color line when the tracer is discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of Reynolds experiment, in particular to a Reynolds experiment device. Background Art

[0002] The Reynolds experiment is an important experiment to show laminar flow and turbulent flow. It is also an important similarity law to measure and verify the Reynolds number. The traditional Reynolds experiment device consists of a high-level tank, a tracer bottle, a Reynolds tube, a flow meter, a valve, a water pump and a low-level water tank. The water pump transports water from the low-level water tank to the high-level tank. The high-level tank is divided into four areas by three partitions, namely the overflow area, the water supply area, the buffer area and the water storage area. The overflow area is specially set up to maintain the constant liquid level of the high-level tank. It is separated from the upper water area by a partition. When the liquid level in the upper water area exceeds the upper edge of the partition, it will overflow to the overflow area and flow back to the low-level water tank through the overflow pipe; the upper water area is an area where the water from the low-level water tank is sent to the high-level tank through a circulating water pump and connected to the upper water pipe; the buffer zone is a special area for slowing down the impact disturbance of the water flow. It is separated from the upper water area by a partition with small holes; the water storage area and the buffer zone are separated by a partition and connected to a Reynolds tube to prevent the water flow from the buffer zone from causing disturbances and affecting the experimental observation results. The water in the water storage area flows back to the low-level water tank after passing through the horizontal Reynolds tube, flowmeter and flow control valve in turn. The tracer is injected from the upper inlet of the Reynolds tube through a soft capillary tube. The flow rate is controlled by adjusting the opening size of the control valve. The change of the color line is observed in the Reynolds tube, different flow types are judged, and the flow law of the fluid is mastered. However, as the liquid in the tracer bottle continues to decrease, the liquid volume of the tracer will continue to decrease, and the color line of the tracer will become uneven in thickness and cannot form a straight line, and cannot accurately demonstrate the laminar flow phenomenon, affecting the accuracy of the experiment. Therefore, the existing technology needs further improvement. Utility Model Content

[0003] The utility model aims to provide a Reynolds test device which can stabilize the thickness of the color line and the flow rate of the tracer when the tracer is discharged.

[0004] A Renault test device includes an elevated tank and a circulating water tank. The upper side of the elevated tank is connected to a tracer feed tank. The lower side of the tracer feed tank is connected to the elevated tank through a first pipeline. The first pipeline is provided with a first valve, a drip bucket, and a first flow regulator from top to bottom. The bottom of the elevated tank is connected to a water inlet through a second pipeline, and the bottom of the elevated tank is connected to a water outlet through a third pipeline. The drip bucket and the first flow regulator are of the same structure as the drip bucket and the flow regulator on a medical infusion set.

[0005] Furthermore, an exhaust valve, a second flow regulating valve and a third valve are sequentially arranged on the third pipeline in a direction from the high-level tank to the water outlet.

[0006] Furthermore, an overflow pipe is provided in the high-level tank, the upper end of the overflow pipe extends into the high-level tank and is located at the upper part of the high-level tank, and the lower end of the overflow pipe is located above the circulating water tank.

[0007] Furthermore, the second pipeline is also connected to the drain port through a fourth pipeline, and the fourth pipeline is also connected to the circulating water tank through a water tank joint. The fourth pipeline is also provided with a third flow regulating valve and a pressure pump, and the third flow regulating valve and the pressure pump are located between the second pipeline and the circulating water tank.

[0008] Furthermore, the fourth pipeline is also connected to the third pipeline through the fifth pipeline and the sixth pipeline. The fourth pipeline is also provided with a fourth valve and a fifth valve. The fourth valve is located between the drain port and the fifth pipeline and the sixth pipeline, and the fifth valve is located between the drain port and the circulating water tank.

[0009] Furthermore, a sixth valve is provided on the water inlet.

[0010] The utility model uses the drip bucket and flow regulator on the medical infusion set as the tracer liquid inlet method. Since the flow regulating valve of the medical infusion set is a roller adjustment method, the amount of liquid entering the high-level tank can be effectively adjusted. The color line of the tracer is uniform and stable. At the same time, the medical infusion set has low cost and is easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 This is a diagram showing the position relationship between the tracer feeding tank and the first pipeline. DETAILED DESCRIPTION

[0013] like Figure 1-2A Renault experiment device shown includes a high-level tank 1 and a circulating water tank 8. The tracer feeding tank 2 is connected to the upper side of the high-level tank 1. The tracer feeding tank 2 is connected to the high-level tank 1 through a first pipe 4. The first pipe 4 is provided with a first valve 5, a drip bucket 6, and a first flow regulator 7 from top to bottom. The bottom of the high-level tank 1 is connected to the water inlet 10 through a second pipe 9, and the bottom of the high-level tank 1 is connected to the water outlet 12 through a third pipe 11. The exhaust valve 13, the second flow regulating valve 14, and the third valve 15 are sequentially arranged on the third pipe 11 from the high-level tank 1 to the water outlet 12. An overflow pipe 16 is also provided in the high-level tank. The upper end of the overflow pipe 16 extends into the high-level tank and is located at the upper part of the high-level tank. The lower end of the overflow pipe 16 is located above the circulating water tank 8. The second pipeline 9 is also connected to the emptying port 19 through the fourth pipeline 17, and the fourth pipeline 17 is also connected to the circulating water tank 8 through the water tank joint 24. The fourth pipeline 17 is also provided with a third flow regulating valve 18 and a pressure pump 25, and the third flow regulating valve 18 and the pressure pump 25 are located between the second pipeline 9 and the circulating water tank 8. The fourth pipeline 17 is also connected to the third pipeline 11 through the fifth pipeline 20 and the sixth pipeline 21. The fourth pipeline 17 is also provided with a fourth valve 22 and a fifth valve 23, and the fourth valve 22 is located between the emptying port 19 and the fifth pipeline 20 and the sixth pipeline 21, and the fifth valve 23 is located between the emptying port 19 and the circulating water tank 8. The water inlet 10 is also provided with a sixth valve. The drip bucket 6 and the first flow regulator 7 are the same structure as the drip bucket and flow regulator on the medical infusion set.

[0014] When in use, open the sixth valve, water enters the second pipe 9 through the water inlet 10 and flows into the high-level tank 1, then comes out through the third pipe 11, and enters the circulating water tank 8. When adding the tracer, first open the first valve 5, and the tracer enters the drip bucket 6 from the first pipe 4, and then turn the roller of the first flow regulator 7 to adjust the flow rate. Through observation, the tracer flow is stable and will not change due to changes in the amount of liquid in the feeding tank 2, and the flow line of the tracer is uniform and stable.

[0015] Among them, when the liquid level in the high-level tank 1 rises above the position of the upper end of the overflow pipe 16, the liquid flows into the circulating water tank 8 from the overflow pipe 16. If it is necessary to drain the water in the high-level tank 1, the third pipeline 11 and the circulating water tank 8, open the valves on the fifth pipeline 20, the sixth pipeline 21 and the fourth pipeline 17 to drain the liquid in the high-level tank 1, the third pipeline 11 and the circulating water tank 8.

Claims

1. A Renault test device, characterized in that: It includes a high-level tank and a circulating water tank. The upper side of the high-level tank is connected to a tracer feeding tank. The lower part of the tracer feeding tank is connected to the high-level tank through a first pipeline. The first pipeline is provided with a first valve, a drip bucket, and a first flow regulator from top to bottom. The bottom of the high-level tank is connected to a water inlet through a second pipeline, and the bottom of the high-level tank is connected to a water outlet through a third pipeline. The drip bucket and the first flow regulator have the same structure as the drip bucket and the flow regulator on the medical infusion set.

2. The Renault test device according to claim 1, characterized in that: An exhaust valve, a second flow regulating valve and a third valve are sequentially arranged on the third pipeline in a direction from the high-level tank to the water outlet.

3. The Renault test device according to claim 2, characterized in that: An overflow pipe is also arranged in the high-level tank, the upper end of the overflow pipe extends into the high-level tank and is located at the upper part of the high-level tank, and the lower end of the overflow pipe is located above the circulating water tank.

4. The Renault test device according to claim 3, characterized in that: The second pipeline is also connected to the drain port through the fourth pipeline, and the fourth pipeline is also connected to the circulating water tank through the water tank joint. The fourth pipeline is also provided with a third flow regulating valve and a pressure pump, and the third flow regulating valve and the pressure pump are located between the second pipeline and the circulating water tank.

5. The Renault test device according to claim 4, characterized in that: The fourth pipeline is also connected to the third pipeline through the fifth pipeline and the sixth pipeline. The fourth pipeline is also provided with a fourth valve and a fifth valve. The fourth valve is located between the drain port and the fifth pipeline and the sixth pipeline, and the fifth valve is located between the drain port and the circulating water tank.

6. The Renault test device according to claim 5, characterized in that: The water inlet is also provided with a sixth valve.

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