Centrifugal pump work simulation experiment device

Abstract

The utility model discloses a centrifugal pump work simulation experiment device, which relates to the technical field of centrifugal pumps and comprises a centrifugal pump work simulation experiment device, and a water storage tank is arranged on one side of the centrifugal pump work simulation experiment device. The water purifier has the advantage of filtering a water source, in the actual use process, when the water source enters the inner cavity of the water storage tank, under the matched use of the ceramic filter element and the PP cotton filter element, the water quality is improved, the purity of experimental water is ensured, and sometimes, waste of the water source is effectively avoided; by means of the cleaning device, impurities on the surface of the PP cotton filter element can be cleaned in time, the impurities enter an inner cavity of a dirt storage pipe, the follow-up cleaning work is simplified, finally, a user can easily detach a water storage tank and a cover plate through a first fixing bolt, the ceramic filter element and the PP cotton filter element can be detached easily, and the cleaning efficiency is improved. And thus, the ceramic filter element and the PP cotton filter element can be repaired.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump working simulation experimental device. Background Art

[0002] The centrifugal pump works by using the rotation of the impeller to make the water produce centrifugal motion. Before starting the water pump, the pump casing and the water suction pipe must be filled with water, and then the motor is started to make the pump shaft drive the impeller and water to rotate at high speed. The water produces centrifugal motion and is thrown to the outer edge of the impeller, and flows into the water pressure pipeline of the water pump through the flow channel of the volute pump casing.

[0003] For example, a centrifugal pump performance test teaching experiment platform disclosed in the publication number CN211827866U, the basic purpose of the utility model is to provide a centrifugal pump performance test teaching experiment platform that is easy for students to understand, so that they can learn the structure and function of the centrifugal pump machine piping system, and understand the performance and status of each structure during the operation of the centrifugal pump. The test teaching experiment platform simulates the structure of the centrifugal pump unit system under actual working conditions in terms of principle and function, and simplifies various auxiliary systems and more complex and longer pipelines, which can effectively improve the students' understanding and absorption ability. At the same time, it can also run and simulate the actual system operation status. By reasonably arranging the various structural relationships and directions, students can have an overview of the entire system structure and various key nodes and instrument panels on one side of the test platform, thereby improving teaching efficiency. It can also be used as a recommended troubleshooting and maintenance platform for the centrifugal pump unit system fault maintenance display, so that students can repair and troubleshoot possible faults in the classroom or laboratory, and can also trace the precursors of faults, which is convenient for a comprehensive understanding of the previous and subsequent process states. However, the water in the water tank in the above patent is circulating water. The recycling method will cause the water quality to gradually accumulate impurities after repeated use. These impurities may not only affect the accuracy of the experimental results, but also have an adverse effect on the working performance of the centrifugal pump and may even damage the equipment; if all the water in the water tank is discharged and replaced with new water after each experiment, although the water quality can be guaranteed, this practice will undoubtedly cause a large amount of water resource waste, especially when experiments are conducted frequently, this waste phenomenon will be more serious.

[0004] In view of the above problems, the utility model provides a centrifugal pump working simulation experimental device. Utility Model Content

[0005] The purpose of the utility model is to provide a centrifugal pump working simulation experimental device. In actual use, when the water source enters the inner cavity of the water tank, the coordinated use of the ceramic filter element and the pp cotton filter element not only improves the water quality and ensures the purity of the experimental water, but also effectively avoids the waste of water resources sometimes. Secondly, under the action of the cleaning plate, the impurities on the surface of the pp cotton filter element can be cleaned in time, so that the impurities enter the inner cavity of the dirt storage tube, simplifying the subsequent cleaning work. Finally, by using the fixing bolt 1, the user can easily disassemble the water tank and the cover plate, making the disassembly of the ceramic filter element and the pp cotton filter element simple, which is beneficial to the repair of the ceramic filter element and the pp cotton filter element, thereby solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal pump working simulation experimental device, comprising a centrifugal pump working simulation experimental device, a water storage tank is arranged on one side of the centrifugal pump working simulation experimental device, the bottom of the water storage tank is connected to a dirt storage pipe, the bottom of the dirt storage pipe is connected to a drain pipe, a cover plate is arranged on the top of the water storage tank, a fixed ring is fixedly connected to the inner wall of the water storage tank, a ceramic filter element is arranged in the inner cavity of the fixed ring, a pp cotton filter element is arranged on the inner wall of the ceramic filter element, the bottoms of the ceramic filter element and the pp cotton filter element are both in contact with the dirt storage pipe, the tops of the ceramic filter element and the pp cotton filter element are fixedly connected with four positioning plates, and the top of the water storage tank A groove engaged with the positioning plate is provided, and four fixing bolts 1 are arranged through the top of the cover plate, and the bottom ends of the fixing bolts 1 penetrate into the inner wall of the inner cavity of the groove, and a threaded hole matched with the fixing bolt 1 is provided on the top of the positioning plate, and an electric telescopic rod is arranged through the top of the cover plate, and the output end of the electric telescopic rod penetrates into the inner cavity of the water tank and is fixedly connected with a cleaning plate, and the cleaning plate is used in conjunction with a pp cotton filter element, and a connecting pipe 1 is connected to the top of the left side of the outer surface of the water tank, and the connecting pipe 1 is connected to the water outlet end of the centrifugal pump working simulation experimental device, and a connecting pipe 2 is connected to the bottom of the right side of the outer surface of the water tank, and the connecting pipe 2 is connected to the water inlet end of the centrifugal pump working simulation experimental device.

[0007] Furthermore, a fixed sleeve is provided on the surface of the water tank, and two brackets are fixedly connected to one side of the fixed sleeve, and the bottom of the bracket and the bottom of the centrifugal pump working simulation experimental device are located on the same axis.

[0008] Furthermore, a control valve is provided on the surface of the drain pipe.

[0009] Furthermore, the top of the cover plate is connected to a water injection pipe, and a sealing plug is provided on the surface of the water injection pipe.

[0010] Furthermore, a mounting plate is sleeved on the surface of the electric telescopic rod, a plurality of fixing bolts 2 are penetrated through the top of the mounting plate, and the mounting plate is detachably connected to the cover plate via the fixing bolts 2.

[0011] Furthermore, the surface of the cleaning plate is provided with through holes, and the number of the through holes is six.

[0012] Furthermore, the dirt storage tube is configured to be wide at the top and narrow at the bottom.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model provides a centrifugal pump working simulation experimental device, which has the advantage of filtering water sources. In actual use, when the water source enters the inner cavity of the water storage tank, the coordinated use of the ceramic filter element and the pp cotton filter element not only improves the water quality and ensures the purity of the experimental water, but also effectively avoids the waste of water resources sometimes. Secondly, under the action of the cleaning plate, the impurities on the surface of the pp cotton filter element can be cleaned in time, so that the impurities enter the inner cavity of the dirt storage tube, which simplifies the subsequent cleaning work. Finally, by using the fixing bolt 1, the user can easily disassemble the water storage tank and the cover plate, which makes the disassembly of the ceramic filter element and the pp cotton filter element simple, which is beneficial to the repair of the ceramic filter element and the pp cotton filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial front view of the utility model;

[0017] Figure 3 The utility model is a three-dimensional schematic diagram of the local structure of the water tank Figure 1 ;

[0018] Figure 4 It is a three-dimensional schematic diagram of the partially disassembled state of the water tank and the cover plate of the utility model;

[0019] Figure 5 The utility model is a three-dimensional schematic diagram of the local structure of the water tank Figure 2 .

[0020] In the figure: 1. Centrifugal pump working simulation experimental device; 2. Water storage tank; 3. Dirt storage pipe; 4. Drain pipe; 5. Cover plate; 6. Fixed ring; 7. Ceramic filter element; 8. PP cotton filter element; 9. Positioning plate; 10. Groove; 11. Fixing bolt 1; 12. Electric telescopic rod; 13. Cleaning plate; 14. Connecting pipe 1; 15. Connecting pipe 2; 16. Fixed sleeve; 17. Bracket; 18. Control valve; 19. Water injection pipe; 20. Sealing plug; 21. Mounting plate; 22. Fixing bolt 2; 23. Through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] To solve technical problems, such as Figure 1-5 As shown, the following preferred technical solutions are provided:

[0023] A centrifugal pump working simulation experimental device includes a centrifugal pump working simulation experimental device 1. The centrifugal pump working simulation experimental device 1 belongs to the prior art, and its working principle is well known to those skilled in the art. For example, in the centrifugal pump working simulation experimental device, some measuring and adjusting equipment are usually set, such as flow sensors, pressure sensors, valves, etc., to monitor and control parameters such as liquid flow and pressure, so as to study the performance and working characteristics of the centrifugal pump. A water storage tank 2 is set on one side of the centrifugal pump working simulation experimental device 1, and the bottom of the water storage tank 2 is connected to a dirt storage pipe 3, and the bottom of the dirt storage pipe 3 is connected to a drain pipe 4. A cover plate 5 is set on the top of the water storage tank 2, and a fixed ring 6 is fixedly connected to the inner wall of the water storage tank 2. A ceramic filter element 7 is set in the inner cavity of the fixed ring 6, and a pp cotton filter element 8 is set on the inner wall of the ceramic filter element 7. The bottoms of the ceramic filter element 7 and the pp cotton filter element 8 are both connected to the dirt storage pipe 3 are in contact, the tops of the ceramic filter element 7 and the pp cotton filter element 8 are fixedly connected with four positioning plates 9, the top of the water tank 2 is provided with a groove 10 engaged with the positioning plate 9, the top of the cover plate 5 is penetrated by four fixing bolts 11, the bottom ends of the fixing bolts 11 penetrate to the inner wall of the inner cavity of the groove 10, and the top of the positioning plate 9 is provided with a threaded hole compatible with the fixing bolts 11, the top of the cover plate 5 is penetrated by an electric telescopic rod 12, the output end of the electric telescopic rod 12 penetrates to the inner cavity of the water tank 2 and is fixedly connected with a cleaning plate 13, the cleaning plate 13 is used in conjunction with the pp cotton filter element 8, the top of the left side of the outer surface of the water tank 2 is connected with a connecting pipe 14, the connecting pipe 14 is connected to the water outlet end of the centrifugal pump working simulation experimental device 1, and the bottom of the right side of the outer surface of the water tank 2 is connected with a connecting pipe 2 15, and the connecting pipe 2 15 is connected to the water inlet end of the centrifugal pump working simulation experimental device 1.

[0024] The surface of the water tank 2 is covered with a fixing sleeve 16, and two brackets 17 are fixedly connected to one side of the fixing sleeve 16. The bottom of the bracket 17 is located on the same axis as the bottom of the centrifugal pump working simulation experimental device 1. The fixing sleeve 16 and the bracket 17 are used in coordination to support the water tank 2, thereby improving the stability of the water tank 2 when working.

[0025] The surface of the drain pipe 4 is provided with a control valve 18. Through the setting of the control valve 18, the circulation of the drain pipe 4 is controlled, which is conducive to the collective discharge of dirt located in the inner cavity of the drain pipe 4.

[0026] The top of the cover plate 5 is connected with a water injection pipe 19, and a sealing plug 20 is provided on the surface of the water injection pipe 19. Through the coordinated use of the water injection pipe 19 and the sealing plug 20, when the water source in the inner cavity of the water storage tank 2 is discharged, the water injection pipe 19 can be used to inject water into the inner cavity of the water storage tank 2, thereby improving the rationality of the structural layout.

[0027] The surface of the electric telescopic rod 12 is sleeved with a mounting plate 21, and a plurality of fixing bolts 22 are provided through the top of the mounting plate 21. The mounting plate 21 is detachably connected to the cover plate 5 through the fixing bolts 22. The mounting plate 21 and the fixing bolts 22 are used in coordination to mount and fix the electric telescopic rod 12, which facilitates the subsequent disassembly of the electric telescopic rod 12 and facilitates maintenance.

[0028] The surface of the cleaning plate 13 is provided with six through holes 23. The through holes 23 are arranged to reduce the overall weight of the cleaning plate 13 and prevent the water in the inner cavity of the water storage tank 2 from being disturbed when the cleaning plate 13 moves upward, thereby preventing the dirt in the inner cavity of the drain pipe 4 from being affected.

[0029] The dirt storage tube 3 is arranged to be wide at the top and narrow at the bottom.

[0030] Working principle: during use, when the centrifugal pump working simulation experimental device 1 is working, the water after the experiment of the centrifugal pump working simulation experimental device 1 will enter the inner cavity of the water storage tank 2 through the connecting pipe 14, and under the interception of the fixed ring 6, the water after the experiment will enter the inner cavity of the pp cotton filter element 8, and first pass through the pp cotton filter element 8. The pp cotton filter element 8PP can capture tiny impurities. The PP cotton material is safe and non-toxic, and will not cause secondary pollution to the water quality, thereby ensuring the cleanliness of the water. Then the ceramic filter element 7 will filter. The ceramic filter element 7 will not cause secondary pollution during use, and can effectively remove mud, sand, bacteria, rust, never block, have a long service life, and have excellent filtering effects. The clean water after filtration is distributed in the inner cavity of the water storage tank 2 and the outside of the ceramic filter element 7. Because under the action of the control valve 18, the drain pipe 4 and the dirt storage pipe 3 are not in a circulation state, so under the transmission of the connecting pipe 2 15, the clean water after filtration is used for the centrifugal pump working simulation experimental device 1 This process improves the water quality and ensures the purity of the experimental water; secondly, the electric telescopic rod 12 can be started, and the output end of the electric telescopic rod 12 extends to drive the cleaning plate 13 to move downward, and the cleaning plate 13 moves downward on the inner wall of the pp cotton filter element 8. The cleaning plate 13 pushes the particles and impurities on the inner wall of the pp cotton filter element 8 downward. Under the action of the gravity of the particles and impurities, the impurities and particles enter the inner cavity of the dirt storage tube 3. This process avoids affecting the filtering effect of the pp cotton filter element 8. When the dirt is stored When there are many impurities or particulates in the inner cavity of the tube 3, the control valve 18 can be opened to discharge them through the drain pipe 4; finally, when the ceramic filter element 7 and the pp cotton filter element 8 need maintenance, the fixing bolt 11 is turned to realize the disassembly of the water tank 2 and the cover plate 5, and then the cover plate 5 and the positioning plate 9 are moved upward to move the positioning plate 9 out of the inner cavity of the groove 10. The positioning plate 9 drives the ceramic filter element 7 and the pp cotton filter element 8 to move upward, so that the ceramic filter element 7 and the pp cotton filter element 8 can be removed, thereby facilitating subsequent maintenance.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal pump working simulation experimental device, comprising a centrifugal pump working simulation experimental device (1), characterized in that: A water storage tank (2) is arranged on one side of the centrifugal pump working simulation experimental device (1). The bottom of the water storage tank (2) is connected to a dirt storage pipe (3). The bottom of the dirt storage pipe (3) is connected to a drain pipe (4). A cover plate (5) is arranged on the top of the water storage tank (2). A fixed ring (6) is fixedly connected to the inner wall of the water storage tank (2). A ceramic filter element (7) is arranged in the inner cavity of the fixed ring (6). A PP cotton filter element (8) is arranged on the inner wall of the ceramic filter element (7). The bottoms of the ceramic filter element (7) and the PP cotton filter element (8) are both in contact with the dirt storage pipe (3). The tops of the ceramic filter element (7) and the PP cotton filter element (8) are fixedly connected to four positioning plates (9). A groove (10) engaged with the positioning plate (9) is provided on the top of the water storage tank (2). A groove (10) is arranged through the top of the cover plate (5). There are four fixing bolts (11), the bottom ends of the fixing bolts (11) penetrate the inner wall of the inner cavity of the groove (10), and the top of the positioning plate (9) is provided with a threaded hole matched with the fixing bolts (11). The top of the cover plate (5) is penetrated by an electric telescopic rod (12), the output end of the electric telescopic rod (12) penetrates the inner cavity of the water storage tank (2) and is fixedly connected to a cleaning plate (13), and the cleaning plate (13) is used in conjunction with a PP cotton filter element (8). The top of the left side of the outer surface of the water storage tank (2) is connected to a connecting pipe (14), and the connecting pipe (14) is connected to the water outlet end of the centrifugal pump working simulation experimental device (1). The bottom of the right side of the outer surface of the water storage tank (2) is connected to a connecting pipe (15), and the connecting pipe (15) is connected to the water inlet end of the centrifugal pump working simulation experimental device (1).

2. A centrifugal pump working simulation experimental device according to claim 1, characterized in that: The surface of the water storage tank (2) is provided with a fixing sleeve (16), one side of the fixing sleeve (16) is fixedly connected to two brackets (17), and the bottom of the bracket (17) is located on the same axis as the bottom of the centrifugal pump working simulation experimental device (1).

3. A centrifugal pump working simulation experimental device according to claim 1, characterized in that: A control valve (18) is provided on the surface of the drainage pipe (4).

4. The centrifugal pump operation simulation experimental device according to claim 1, characterized in that: The top of the cover plate (5) is connected to a water injection pipe (19), and a sealing plug (20) is provided on the surface of the water injection pipe (19).

5. The centrifugal pump operation simulation experimental device according to claim 1, characterized in that: The surface of the electric telescopic rod (12) is sleeved with a mounting plate (21), the top of the mounting plate (21) is penetrated by a plurality of second fixing bolts (22), and the mounting plate (21) is detachably connected to the cover plate (5) via the second fixing bolts (22).

6. The centrifugal pump operation simulation experimental device according to claim 1, characterized in that: The surface of the cleaning plate (13) is provided with through holes (23), and the number of the through holes (23) is six.

7. The centrifugal pump operation simulation experimental device according to claim 1, characterized in that: The dirt storage tube (3) is arranged to be wide at the top and narrow at the bottom.

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