Cam rotor pump experiment display device

Abstract

The utility model relates to the technical field of cam rotor pumps, in particular to a cam rotor pump experiment display device which comprises a liquid storage tank, a water inlet pipeline, a cam rotor pump and a water outlet pipeline which are sequentially connected to form a closed cycle, the liquid storage tank and the cam rotor pump are installed on a base, and a motor is connected to the cam rotor pump; the water inlet pipeline comprises a first hose, a first water pump, a first observation pipe, a valve, a first measuring pipe, an electromagnetic flowmeter and a second hose which are sequentially connected through first flanges, a pressure sensor and a pressure gauge are installed on the first measuring pipe, and the first observation pipe is a transparent pipe; the water outlet pipeline comprises a third hose, a second observation pipe, a second measuring pipe and a fourth hose which are sequentially connected through a second flange, the second observation pipe is a transparent pipe, and a pressure gauge and a flow meter are installed on the second measuring pipe. The utility model solves the problems that the experiment display of the cam rotor pump is not visual and the experiment liquid cannot circulate.

Description

Technical Field

[0001] The utility model relates to the technical field of cam rotor pumps, in particular to an experimental display device for a cam rotor pump. Background Art

[0002] As an advanced positive displacement pump, the cam rotor pump is favored in the fields of industry, agriculture, environmental protection, etc. due to its unique working principle and wide application range. Its core mechanism lies in one or more pairs of synchronously rotating cam rotors, which achieve continuous fluid transportation through the volume change generated in the pump body. However, although the theory and technology of the cam rotor pump are quite mature, there are still challenges in the intuitive display of its working process in the fields of education and training and experiments.

[0003] Traditional experimental devices for cam rotor pumps often adopt a closed design, which means that the pump body and pipeline components are completely enclosed, making it impossible for observers to directly see the working process of the cam rotor pump, thus making it difficult for learners to intuitively understand the working principle of the pump. This visual barrier limits the teaching effect, and students may only be able to imagine the operation of the pump through abstract concept descriptions without obtaining direct perceptual knowledge.

[0004] In experimental displays, cam rotor pumps often need to be connected to an external liquid supply system, which usually means that the experimental liquid is discharged after one cycle instead of being re-introduced into the pump inlet for recirculation. This one-time use method not only wastes resources and increases the experimental cost, but also requires continuous replenishment of the experimental liquid in frequent teaching demonstrations, which is both cumbersome and time-consuming. In addition, for experiments aimed at studying the long-term performance of the pump or simulating real working environments, the lack of a circulation system means that long-term continuous tests cannot be carried out, limiting the depth and breadth of the experiments.

[0005] Now, in order to solve the above technical problems, the utility model designs an experimental display device for a cam rotor pump. Content of the Utility Model

[0006] The utility model provides an experimental display device for a cam rotor pump, aiming to solve the problems that the experimental display of the cam rotor pump is not intuitive and the experimental liquid cannot be circulated. The technical solution is as follows:

[0007] An experimental display device for a cam rotor pump, characterized in that it includes a liquid storage tank, a water inlet pipeline, a cam rotor pump, and a water outlet pipeline that are connected in sequence to form a closed loop. The liquid storage tank and the cam rotor pump are installed on a base, and a motor is connected to the cam rotor pump;

[0008] The inlet pipeline includes a first hose, a first water pump, a first observation pipe, a valve, a first measuring pipe, an electromagnetic flowmeter, and a second hose that are sequentially connected by a first flange. A pressure sensor and a pressure gauge are installed on the first measuring pipe, and the first observation pipe is a transparent pipe;

[0009] The outlet pipeline includes a third hose, a second observation pipe, a second measuring pipe, and a fourth hose that are sequentially connected by a second flange. The second observation pipe is a transparent pipe, and a pressure gauge and a flowmeter are installed on the second measuring pipe.

[0010] Based on the above technical solution, a pipeline support for fixing the inlet pipeline and the outlet pipeline is provided on the base.

[0011] Based on the above technical solution, the pipeline support includes a support frame and a ring-shaped member. One end of the ring-shaped member is hinged to the ring-shaped member, and the other end is clamped to the ring-shaped member.

[0012] Based on the above technical solution, a check valve is installed at the outlet of the cam rotor pump.

[0013] Based on the above technical solution, the liquid storage tank includes a tank body, a cover body is buckled on the tank body, an inlet and an outlet are connected to the tank body, the inlet is connected to the third hose, the outlet is connected to the first hose, a filter screen is provided on the outlet, a flocculant purification tank is arranged in the tank body, the flocculant purification tank is connected to a sedimentation tank below, and a connecting channel is arranged in the tank body leading from the filter screen to the flocculant purification tank.

[0014] Preferably, the first observation pipe and the second observation pipe are made of polyvinyl chloride.

[0015] Beneficial Effects

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: On the one hand, the device is easy to observe, and the observer can directly see the fluid flow, pressure changes, and the operating state of the pump, which helps to analyze and record experimental data in real time. On the other hand, the recycling of experimental liquids avoids the waste of discharging and replenishing liquids after each experiment, reduces the experimental cost, and at the same time reduces the impact on the environment and improves the coherence and efficiency of the experiment. On the other hand, the modular connection with flanges improves flexibility and scalability. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0018] Figure 1 : Structural schematic diagram of the present utility model;

[0019] Figure 2 : Structural schematic diagram of the water inlet pipe of the present utility model;

[0020] Figure 3 : Structural schematic diagram of the water outlet pipe of the present utility model;

[0021] Figure 4 : Structural schematic diagram of the pipe support of the present utility model;

[0022] Figure 5 : Structural schematic diagram of the liquid storage tank of the present utility model. Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with the drawings and examples:

[0024] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0027] As Figure 1 shown, a cam rotor pump experiment display device, characterized in that: it includes a liquid storage tank 2, a water inlet pipe 3, a cam rotor pump 4 and a water outlet pipe 6 that are connected in sequence to form a closed loop. The liquid storage tank 2 and the cam rotor pump 4 are installed on a base 1, and a motor 5 is connected to the cam rotor pump 4;

[0028] As Figure 2 shown, the inlet pipe 3 includes a first hose 31, a first water pump 32, a first observation pipe 33, a valve 34, a first measuring pipe 35, an electromagnetic flowmeter 36, and a second hose 37 that are sequentially connected by a first flange 30. A pressure sensor 351 and a pressure gauge 352 are installed on the first measuring pipe 35, and the first observation pipe 33 is a transparent pipe.

[0029] As Figure 3 shown, the outlet pipe 6 includes a third hose 61, a second observation pipe 62, a second measuring pipe 63, and a fourth hose 64 that are sequentially connected by a second flange 60. The second observation pipe 62 is a transparent pipe, and a pressure gauge and a flowmeter are installed on the second measuring pipe 63.

[0030] The cam rotor pump 4 generates vibrations during operation. The second hose 37 and the fourth hose 64 can act as flexible connections to absorb these vibrations, reduce stress on the pipes and the cam rotor pump 4, and extend the service life of the entire system. In addition, the hoses can also accommodate small displacements caused by thermal expansion and contraction, preventing damage to the pipe system due to stress concentration. When maintenance or replacement of the cam rotor pump 4 or the liquid storage tank 2 is required, the hose connections can be easily disconnected and removed from the pipe system without having to disassemble the entire pipe network, saving time and labor costs.

[0031] The pressure gauge is used to monitor the fluid pressure in the pipe in real time, which is crucial for ensuring that the system operates within the designed pressure range and avoiding overpressure or underpressure conditions. The pressure gauge can directly read the pressure value for easy observation.

[0032] The first observation pipe 33 and the second observation pipe 62 are transparent pipes, through which the flow of the liquid can be directly seen.

[0033] Pipe supports 7 for fixing the inlet pipe 3 and the outlet pipe 6 are provided on the base 1. The pipe supports 7 are used to support the pipes, ensuring that the pipes remain stable when subjected to fluid pressure, thermal expansion and contraction, vibration, or other external forces, and preventing pipe displacement or damage. The pipe supports can be in various forms, including but not limited to hanging brackets, brackets, fixed supports, guiding supports, spring supports, etc.

[0034] As Figure 4 shown, one type of fixed support: The pipe support 7 includes a support frame 71 and a ring part 72. One end of the ring part 72 is hinged to the ring part 72, and the other end is clamped to the ring part 72.

[0035] A check valve is installed at the outlet of the cam rotor pump 4 to prevent the liquid from flowing back when the pump stops operating, protecting the pump and the system from the damage of the water hammer effect.

[0036] As Figure 5As shown, the liquid storage tank 2 includes a tank body 21, a cover body 22 is snap-connected to the tank body 21, a water inlet 27 and a water outlet 28 are connected to the tank body 21, the water inlet 27 is connected to a third hose 61, the water outlet 28 is connected to a first hose 31, a filter screen 25 is arranged on the water outlet 28, a flocculant purification tank 23 is arranged in the tank body 21, the flocculant purification tank 23 is connected to a sedimentation tank 24 below, and a connection channel 26 is arranged in the tank body 21 leading from the filter screen 25 to the flocculant purification tank 23. Open the cover body 22 and add water. The water flows out from the water outlet 28 by a first water pump 32. The filter screen 25 can filter out suspended substances. The suspended substances enter the flocculant purification tank 23 through the connection channel 26. After being treated by the flocculant purification tank 23, the sediment remains in the sedimentation tank 24, and the filtered water can be recycled.

[0037] The first observation tube 33 and the second observation tube 62 are made of polyvinyl chloride. Polyvinyl chloride (PVC) is an economical and chemical-resistant plastic, widely used in water pipes, drain pipes and other fluid transportation systems.

[0038] During the experiment demonstration, place a liquid in the tank body 21, which can be water or a colored liquid for easy observation. The first water pump 32 pumps the liquid into the inlet pipe 3, and it flows along the pipe into the cam rotor pump 4, and then returns to the liquid storage tank 2 through the outlet pipe 6. The pressure gauges and flow meters arranged on the inlet pipe 3 and the outlet pipe 6 can timely read out the flowing values, and the first observation tube 33 and the second observation tube 62 can observe the process of the liquid flowing through.

[0039] Each part of the inlet pipe 3 and the outlet pipe 6 is connected by a flange. Flange connection allows the quick installation and disassembly of each part of the pipe, without welding, greatly reducing the installation time and cost. At the same time, it is also convenient for later maintenance and overhaul. The modular design means that the pipe system can be easily expanded or modified according to needs, just by adding or replacing the corresponding flange connection modules, without large-scale reconstruction of the entire system. The flanged pipes are convenient for regular inspection and maintenance. The flange can be easily opened to check the internal condition, and problems such as corrosion, blockage or wear can be timely discovered and processed.

[0040] The above has illustrated the present invention by way of example, but the present invention is not limited to the above specific embodiments. Any changes or variations based on the present invention fall within the scope of protection required by the present invention.

Claims

1. A cam rotor pump experimental demonstration device, characterized in that: It comprises a liquid storage tank (2), a water inlet pipe (3), a cam rotor pump (4) and a water outlet pipe (6) which are sequentially connected to form a closed loop, the liquid storage tank (2) and the cam rotor pump (4) being mounted on a base (1), and the cam rotor pump (4) being connected to a motor (5); The water inlet pipeline (3) comprises a first hose (31), a first water pump (32), a first observation tube (33), a valve (34), a first measuring tube (35), an electromagnetic flowmeter (36) and a second hose (37) which are connected in sequence by a first flange (30); a pressure sensor (351) and a pressure gauge (352) are installed on the first measuring tube (35); and the first observation tube (33) is a transparent tube; The water outlet pipe (6) comprises a third hose (61), a second observation tube (62), a second measuring tube (63) and a fourth hose (64) which are connected in sequence by a second flange (60); the second observation tube (62) is a transparent tube; and a pressure gauge and a flow meter are installed on the second measuring tube (63).

2. A cam rotor pump experimental demonstration device according to claim 1, characterized in that: A pipe bracket (7) for fixing the water inlet pipe (3) and the water outlet pipe (6) is provided on the base (1).

3. A cam rotor pump experimental demonstration device according to claim 2, characterized in that: The pipeline support (7) comprises a support frame (71) and an annular member (72); one end of the annular member (72) is hinged on the annular member (72), and the other end is clamped on the annular member (72).

4. The cam rotor pump experimental demonstration device according to claim 1, characterized in that: A check valve is installed at the outlet of the cam rotor pump (4).

5. The cam rotor pump experimental demonstration device according to claim 1, characterized in that: The liquid storage tank (2) comprises a tank body (21), a cover body (22) buckled on the tank body (21), a water inlet (27) and a water outlet (28) connected to the tank body (21), the water inlet (27) connected to a third hose (61), the water outlet (28) connected to a first hose (31), a filter screen (25) arranged on the water outlet (28), a flocculant purification box (23) arranged in the tank body (21), a sedimentation box (24) connected below the flocculant purification box (23), and a connecting channel (26) arranged in the tank body (21) leading from the filter screen (25) to the flocculant purification box (23).

6. The cam rotor pump experimental demonstration device according to claim 1, characterized in that: The first observation tube (33) and the second observation tube (62) are made of polyvinyl chloride.

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