CN206497671U - A Renault experimental device - Google Patents

Abstract

A Reynolds experimental device, by setting a constant pressure water tank and a small water tank filled with colored water in it, the colored water is separated from the uncolored water, and the water of the two is prevented from mixing with each other through sealing treatment, and at the same time, the The waste water used is directly discharged through the water outlet of the sump and the drainage system in the laboratory, thus avoiding the problem of re-contamination of colorless water by the water used in the original experimental device. In addition, the screw connection method can be used in time. Remove the observation tube to replace other pipes, and other experiments can be realized without removing other parts, avoiding the overall removal and installation of the equipment, and easy to use.

Description

A Renault experimental device

technical field

The utility model relates to an experimental device, in particular to a Renault experimental device.

Background technique

The Reynolds experimental device is an important teaching experimental device. Due to the limitation of the teaching site, multiple experimental devices cannot be installed at the same time and need to be disassembled repeatedly. The water from the sump of the Reynolds experiment must be returned to the low-level water tank, and then by The water pump in the low-level water tank was pressurized and reused. As a result, due to the mixing of colored water added in the experiment, the return water had a certain impact on the observation of subsequent experiments, which easily led to inaccurate experimental results. In addition, the water inlet and drainage of the experimental device are out of touch with the water supply and drainage system of the laboratory, which brings great troubles to the water inlet and drainage of the experimental device. The water inlet often needs to be temporarily connected to the hose, and the drainage needs to be temporarily connected to the submersible pump. The water in the water tank is first pumped into the bucket, and then the water is manually poured, and it cannot be completely emptied, which wastes manpower and material resources, and easily causes water to spill on the indoor ground.

Utility model content

The purpose of this utility model is to provide a kind of Renault experimental device for solving the problem that colored water is easy to pollute uncolored water and the existing experimental device has a single function during the use of the Renault experimental device. The colored water is separated from the colorless water, and the water of the two is prevented from mixing with each other through sealing treatment. At the same time, the waste water used is connected to the drainage system in the laboratory through the outlet of the sump and directly discharged, thus avoiding the original experimental device. In addition, the used water pollutes the colorless water again. In addition, the threaded connection method can be used to remove the observation tube in time to replace the observation tube of other experiments, so as to realize the measurement of other experiments without removing other parts. The experiment avoids the overall dismantling and installation of the equipment, and is easy to use.

The utility model is for solving the deficiencies of the above-mentioned technical problems, and the technical scheme adopted is:

A Renault experimental device, including a bracket, a constant pressure water tank installed on the bracket, and a low-level water tank installed under the constant-pressure water tank. A connecting pipe is installed between the constant-pressure water tank and the low-level water tank, and the connecting pipe is connected to the water pump through an adapter device In order to pump the water in the low-level water tank into the constant-pressure water tank, the water outlet of the constant-pressure water tank is installed with an observation tube through a threaded connection, and a sealing gasket is arranged between the constant-pressure water tank and the observation tube to prevent the solution from leaking. There is also a small water tank for holding colored water in the pressurized water tank. There is a solution inlet on the top of the small water tank. The small water tank is hung on the side wall of the constant pressure water tank through the hanging rod fixed on the outer wall. A thin tube is installed in a threaded connection, and a sealing ring is provided between the small water tank and the thin tube to prevent the solution from leaking. In the connected observation tube, the distance between the small water tank and the bottom of the constant pressure water tank is greater than the distance between the outlet of the constant pressure water tank and the bottom of the constant pressure water tank, and the distance between the small water tank and the bottom of the constant pressure water tank is greater than the distance between the upper surface of the solution in the constant pressure water tank and the constant pressure The distance from the bottom of the water tank, the end of the observation tube is bent 90° downwards and extended to form a drain. A sump is arranged directly below the drain, and the outlet of the sump is connected to the drainage system in the laboratory through a pipe.

A control valve for controlling the flow rate of water in the measurement tube is installed on the observation tube.

The low water tank is provided with a water inlet, a drain hole and an overflow hole. The water inlet is located on the side wall of the low water tank and is connected to the water source through a water supply device. Water pipe, the end of the water inlet pipe is equipped with a float valve to control the water supply of the water supply device. The drain hole is located at the bottom of the low water tank and connected to the laboratory drainage system. The overflow hole is lower than the water inlet hole, that is, the overflow hole is located at the bottom of the low water tank. On the side wall, the distance between the centerline of the overflow hole and the bottom of the low-level water tank is smaller than the distance between the centerline of the water inlet hole and the bottom of the low-level water tank. The overflow hole is connected to the drainage system through the overflow pipe to prevent water from flowing to the indoor ground.

The water source is the water supply pipeline of the laboratory, and the drainage system is the drainage pipeline of the laboratory.

The distance between the centerline of the overflow hole and the centerline of the water inlet hole is 2.5 times the diameter of the water inlet pipe.

The diameter of the overflow pipe is larger than that of the water inlet pipe.

The observation tube is supported on the bracket through the support rod.

A valve for controlling the opening and closing of the thin tube is installed on the thin tube.

The observation tube is for observing laminar turbulent flow phenomenon.

When carrying out the experiment, the water in the sump can be discharged directly to ensure the accuracy of the experimental results, and a water inlet device, a drain hole and an overflow device are added to the low-level water tank to facilitate the water supply and drainage of the experimental device, and avoid the students from giving The phenomenon that water is accidentally spilled on the indoor floor when the water tank is filled with water and drained.

In order to realize the convenience of measuring the flow rate, the height of the sump is reduced and the size is increased.

In order to facilitate the water supply and drainage of the water tank, a water inlet device is installed on the top of the low-level water tank, including adding a water inlet hole on the wall of the water tank, and setting a water inlet pipe to facilitate the connection between the water inlet of the water tank and the water supply system of the building. A control inlet is added at the end of the water inlet pipe. Float valve for water; a drain hole is set at the bottom to facilitate the drainage of the water tank and the drainage system of the building; an overflow device is added below the water inlet hole, 2.5 times the diameter of the water inlet pipe from the water inlet hole; including the overflow hole and The overflow pipe, the diameter of the overflow pipe is one level larger than the diameter of the water inlet pipe, and the overflow pipe is connected with the drainage system of the building, so as to prevent the water in the water tank from overflowing to the indoor ground.

The beneficial effects of the utility model are: the utility model is connected with the drainage system through the water collection tank, and the water after the experiment is discharged, which avoids the problem that the water after the experiment enters the water supply tank and pollutes the colorless water, and ensures the accuracy of the experiment results. At the same time, the end of the observation tube is bent downward by 90° and a part is extended to form a drain, which can reduce the splash of water. The drain is set directly above the sump to avoid the discharge of colored water from polluting the laboratory floor. At the same time, the low-level water tank The water inlet, overflow hole and drain hole are set in the center, which not only ensures the stability of the water used in the experimental device, but also avoids water waste caused by excessive water supply.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a structural schematic diagram of the middle and low level water tank of the present invention.

Fig. 3 is a schematic diagram of the water inlet pipe in the middle and low water tank of the present invention.

Icon marks: 1. Small water tank; 2. Thin tube; 3. Constant pressure water tank; 4. Observation tube; 5. Support rod; 6. Control valve; 7. Water collection tank; 8. Bracket; , inlet hole; 902, overflow hole; 903, drain hole; 10, connecting pipe.

detailed description

As shown in Figure 1, the specific implementation is as follows:

A Reynolds experimental device, comprising a bracket 8, a constant pressure water tank 3 installed on the bracket 8, a low-level water tank 9 installed below the constant-pressure water tank 3, a connecting pipe 10 is installed between the constant-pressure water tank 3 and the low-level water tank 9, and connected The pipe 10 is connected to the water pump through an adapter so that the water in the low-level water tank 9 is drawn into the constant-pressure water tank 3, and the water outlet of the constant-pressure water tank 3 is provided with an observation tube 4 through a threaded connection, and the constant-pressure water tank 3 and A sealing gasket is arranged between the observation tubes 4 to prevent the solution from leaking. A small water tank 1 for holding colored water is also arranged in the constant pressure water tank 3. The top of the small water tank 1 is provided with a solution inlet, and the small water tank is fixed on its outer wall. The hanging rod is hung on the side wall of the constant pressure water tank 3, and the bottom of the small water tank 1 is provided with a thin tube 2 through a threaded connection, and a sealing ring is arranged between the small water tank 1 and the thin tube 2 to prevent the solution from leaking. The lower end of the pipe 2 extends to the water outlet of the constant pressure water tank 3 and bends around 90° to deform and extends into the observation tube 4 connected to the constant pressure water tank 3. The distance between the small water tank 1 and the bottom of the constant pressure water tank 3 is greater than that of the constant pressure water tank 3 The distance between the water outlet and the bottom of the constant pressure water tank 3, and the distance between the small water tank 1 and the bottom of the constant pressure water tank 3 is greater than the distance between the upper surface of the solution in the constant pressure water tank 3 and the bottom of the constant pressure water tank 3, and the end of the observation tube 4 is bent downward by 90° ° and extend a part to form a water outlet, and a sump 7 is arranged directly below the water outlet, and the water outlet of the water sump 7 is connected to the drainage system in the laboratory by a pipeline.

The observation pipe 4 is equipped with a control valve 6 for controlling the flow rate of water in the measuring pipe.

The lower water tank 9 is provided with a water inlet 901, a drain hole 903 and an overflow hole 902. The water inlet 901 is located on the side wall of the lower water tank 9 and is connected to the water source through a water supply device. Extend into the water inlet pipe in the low water tank 9, the end of the water inlet pipe is equipped with a float valve 904 to control the water supply of the water supply device, the drain hole 903 is located at the bottom of the low water tank 9 and is connected with the laboratory drainage system, and the overflow hole 902 is lower than the water inlet. The water hole 901 is that the overflow hole is located on the side wall of the low water tank and the distance between the center line of the overflow hole and the bottom of the low water tank is smaller than the distance between the center line of the water inlet hole and the bottom of the low water tank. The overflow hole 902 passes through the overflow pipe and the bottom of the low water tank. The drainage system is connected to prevent water from flowing to the indoor floor.

The water source is the water supply pipeline of the laboratory, and the drainage system is the drainage pipeline of the laboratory.

The distance between the centerline of the overflow hole 902 and the centerline of the water inlet hole 901 is 2.5 times the diameter of the water inlet pipe.

The diameter of the overflow pipe is larger than that of the water inlet pipe.

The observation tube 4 is supported on the bracket through the support rod 5 .

A valve for controlling the opening and closing of the thin tube is installed on the thin tube 2 .

The observation tube is for observing laminar turbulent flow phenomenon.

When carrying out the experiment, the water in the sump can be discharged directly to ensure the accuracy of the experimental results, and a water inlet device, a drain hole and an overflow device are added to the low-level water tank to facilitate the water supply and drainage of the experimental device, and avoid the students from giving The phenomenon that water is accidentally spilled on the indoor floor when the water tank is filled with water and drained.

In order to realize the convenience of measuring the flow rate, the height of the sump is reduced and the size is increased.

In order to facilitate the water supply and drainage of the water tank, a water inlet device is installed on the top of the low-level water tank, including adding a water inlet hole on the wall of the water tank, and setting a water inlet pipe to facilitate the connection between the water inlet of the water tank and the water supply system of the building. A control inlet is added at the end of the water inlet pipe. Float valve for water; a drain hole is set at the bottom to facilitate the drainage of the water tank and the drainage system of the building; an overflow device is added below the water inlet hole, 2.5 times the diameter of the water inlet pipe from the water inlet hole; including the overflow hole and The overflow pipe, the diameter of the overflow pipe is one level larger than the diameter of the water inlet pipe, and the overflow pipe is connected with the drainage system of the building, so as to prevent the water in the water tank from overflowing to the indoor ground.

The technical solutions and implementations listed in the utility model are not limiting, and the solutions that are equivalent to or have the same effect as the technical solutions and implementations listed in the utility model are all within the protection scope of the utility model.

Claims (8)

1. a kind of Reynolds experiment device, including support（8）, installed in support（8）Constant pressure water tank above（3）, installed in constant pressure Water tank（3）The lower water box of lower section（9）, constant pressure water tank（3）With lower water box（9）Between connecting tube is installed（10）, connecting tube （10）It is connected by switching device with water pump in order to by lower water box（9）Interior water is pumped into constant pressure water tank（3）In, its feature exists In：The constant pressure water tank（3）The mode that delivery port is connected through a screw thread is provided with sighting tube（4）, constant pressure water tank（3）And sighting tube （4）Between be provided with seal washer to prevent solution from revealing, constant pressure water tank（3）Inside being additionally provided with one is used to fill the small of color water Water tank（1）, small water tank（1）Top offers solution and adds mouth, and small water tank is hung on constant pressure by peg fixed on its outer wall Water tank（3）Side wall on, small water tank（1）The mode that bottom is connected through a screw thread is provided with tubule（2）, small water tank（1）With tubule （2）Between be provided with sealing ring, to prevent solution from revealing, tubule（2）Lower end extends constant pressure water tank（3）Delivery port and turn around 90 ° of deformations extend into constant pressure water tank（3）Connected sighting tube（4）It is interior, small water tank（1）With constant pressure water tank（3）The distance of bottom is big In constant pressure water tank（3）Delivery port apart from constant pressure water tank（3）The distance of bottom, and small water tank（1）With constant pressure water tank（3）Bottom Distance is more than constant pressure water tank（3）Interior solution upper surface is apart from constant pressure water tank（3）The distance of bottom, sighting tube（4）End it is downward 90-degree bent simultaneously extends a part and forms discharge outlet, is provided with water leg immediately below discharge outlet（7）, water leg（7）Delivery port It is connected by pipeline with the drainage system in laboratory.

2. a kind of Reynolds experiment device according to claim 1, it is characterised in that：Described sighting tube（4）On be provided with Control determines the control valve of water flow velocity in pipe（6）.

3. a kind of Reynolds experiment device according to claim 1, it is characterised in that：Described lower water box（9）On open up There is inlet opening（901）, spilled water hole（903）And spout hole（902）, inlet opening（901）Positioned at lower water box（9）By supplying on the wall of side Water installations are connected with water source, inlet opening（901）On be provided with one section and stretch into lower water box（9）Interior water inlet pipe, pipe end of intaking On be provided with control water supply installation output ball-cock assembly（904）, spilled water hole（903）Positioned at lower water box（9）Bottom and with reality Test room drainage system connection, spout hole（902）Less than inlet opening（901）, spout hole（902）Connected by overflow pipe and drainage system Connect to avoid water from flowing on flooring.

4. a kind of Reynolds experiment device according to claim 3, it is characterised in that：Described water source is the water supply in laboratory Pipeline, described drainage system is the discharge pipe line in laboratory.

5. a kind of Reynolds experiment device according to claim 3, it is characterised in that：Described spout hole（902）Center line With inlet opening（901）The distance between center line is 2.5 times of water inlet pipe diameter.

6. a kind of Reynolds experiment device according to claim 3, it is characterised in that：The diameter of described overflow pipe be more than into The diameter of water pipe.

7. a kind of Reynolds experiment device according to claim 1, it is characterised in that：Described sighting tube（4）Pass through support Bar（5）It is supported on support.

8. a kind of Reynolds experiment device according to claim 1, it is characterised in that：Described tubule（2）It is upper that control is installed The valve of tubule folding.