A slurry pump leakage test device

Abstract

The application discloses a kind of slurry pump leakage test device, including placement table, and the top surface of placement table is detachably connected with pump machine, and the outlet end of pump machine is detachably connected with output pipe;Lifting platform, lifting platform is detachably connected at the position of one end side of placement table and near upper edge;Motor, motor is detachably embedded and connected on the top surface of lifting platform;Vertical cylinder, vertical cylinder is detachably connected at the output end of motor;Input pipe, vertical cylinder top end is detachably connected with input pipe, and inside is communicated, compared with prior art, the advantages of the application are that: starting pump machine can pump the liquid used for test into pump machine through input pipe, if pump machine is complete sealing state, then the flowing water pressure in input pipe is constant, or keep in certain floating interval, when the water pressure in input pipe is insufficient, it is transmitted through pressure detector, and staff can judge whether pump machine is in perfect sealing state according to the pressure data.

Description

Technical Field

[0001] This invention relates to the field of slurry pumps, and more particularly to a slurry pump leakage test device. Background Technology

[0002] Slurry pumps are a type of centrifugal pump that uses centrifugation to draw and transport liquids containing solid particles. They are generally used in mines to pump mud and coal slurry. Because the liquid contains solid particles, modern slurry pumps have very high requirements for wear resistance, and their sealing performance is also more challenging.

[0003] After a slurry pump is manufactured, a leakage test is required. The current test method is to connect the pump to a water source and then run the pump normally to achieve suction and transportation, thereby observing whether leakage occurs during operation. This test method is too simple, and the presence or absence of leakage is only observed by the naked eye. This method is inevitably not accurate enough and affects the yield rate of slurry pumps leaving the factory. Summary of the Invention

[0004] The purpose of this invention is to provide a slurry pump leakage test device to overcome the problem that the test method in the prior art is simple and the test data is unreliable due to simple visual observation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This application discloses a slurry pump leakage test device, including a placement platform, a pump detachably connected to the top surface of the placement platform, and an output pipe detachably connected to the outlet end of the pump; a support platform, detachably connected to one side of the placement platform near the upper edge; a motor, detachably embedded in the top surface of the support platform; a vertical cylinder, detachably connected to the output end of the motor; an input pipe, the top end of the vertical cylinder detachably connected to the input pipe and communicating internally, one end of the input pipe detachably connected to the inlet end of the pump; and a support tray, with a pressure detector detachably connected to the top surface of the support tray.

[0006] Preferably, a push plate is provided below the support tray, and three sealing rings are inlaid and connected to the outer ring wall of the push plate, and the sealing rings are in contact with the inner wall of the vertical cylinder.

[0007] Preferably, a bottom column is fixedly connected to the top surface of the push plate and near both sides. A spring is fixed to the bottom surface of the bottom column. A connecting column is telescopically connected to the bottom column, and the top of the connecting column is detachably connected to the bottom surface of the support tray.

[0008] Preferably, a miniature rangefinder is detachably connected to the top surface of the base column.

[0009] Preferably, the output shaft of the vertical cylinder extends into the vertical cylinder and is detachably connected to a stud. The stud is threadedly connected to the middle of the push plate, and the support tray is slidably connected to the top of the stud.

[0010] Preferably, a pair of sliders are fixedly connected to the upper edge of the outer ring wall of the push plate, and a limiting groove is opened in the vertical cylinder at the position corresponding to the sliders, and the sliders are slidably connected in the limiting groove.

[0011] Preferably, the input pipe is horizontally arranged, and one end of the input pipe is detachably connected to a three-way valve, and the two ends of the three-way valve are detachably connected to two connecting pipes; The lifting platform has an L-shaped structure, and a positioning ring is fixed at the top of the vertical plate of the lifting platform. One end of the input pipe is placed inside the positioning ring.

[0012] Preferably, a water receiving groove is provided on the top surface of the placement platform near the lifting platform. Conical plates are detachably connected to the two side walls of the placement platform that are far apart from each other. A discharge pipe is fixed to the narrow end of the conical plate. A through groove is provided at the position where the placement platform and the conical plate are connected. The conical plate communicates with the inside of the water receiving groove through the through groove.

[0013] Preferably, a guide plate is rotatably connected to the bottom surface of the water receiving tank, and an inclined groove is formed on the bottom surface of the water receiving tank at a position corresponding to both ends of the guide plate. A driver is embedded in one side of the water receiving tank, and the output shaft of the driver is detachably connected to the midpoint of one side of the guide plate.

[0014] Preferably, the inner walls of the opposite sides of the water receiving tank and near the top edge are detachably connected to support plates. The support plates are L-shaped and the vertical plates of the support plates are in contact with and attached to the bottom surface of the pump.

[0015] Compared with the prior art, the advantages of the present invention are as follows: The present invention discloses a slurry pump leakage test device. When the pump is started, the test liquid can be drawn into the pump through the input pipe. When the liquid flows in the input pipe, it will enter the vertical cylinder. If the pump is in a completely sealed state, the water pressure in the input pipe will be constant or remain within a certain fluctuation range. If the pump is in a leaking state, the water pressure in the input pipe will be insufficient. When the water pressure in the input pipe is insufficient, it will be transmitted through a pressure detector. Based on the pressure data obtained, the operator can determine whether the pump is in a completely sealed state. The data obtained by this test method is more accurate and the response speed is faster than direct visual observation. A miniature rangefinder is installed on the base column to observe the floating distance of the support tray. The distance data and pressure data are then used to verify and corroborate each other, making the test data more reliable and avoiding misjudgments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of a half-section of the support structure according to a preferred embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the push plate structure according to a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the placement platform structure according to a preferred embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of the placement platform according to a preferred embodiment of the present invention; Figure 7 This is an exploded view of the placement platform according to a preferred embodiment of the present invention.

[0017] Explanation of reference numerals in the attached diagram: 1. Placement platform; 2. Lifting platform; 3. Positioning ring; 4. Pump; 5. Input pipe; 6. Motor; 7. Vertical cylinder; 8. Output pipe; 9. Three-way valve; 10. Connecting pipe; 11. Limiting groove; 12. Stud; 13. Push plate; 14. Slider; 15. Base column; 16. Sealing ring; 17. Support plate; 18. Pressure detector; 19. Miniature rangefinder; 20. Water receiving tank; 21. Conical plate; 22. Discharge pipe; 23. Guide plate; 24. Through groove; 25. Support plate; 26. Groove; 27. Driver. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1-3 As shown, a slurry pump leakage test device of this embodiment includes a placement platform 1, a pump 4 detachably connected to the top surface of the placement platform 1, and an output pipe 8 detachably connected to the outlet end of the pump 4; a lifting platform 2, which is detachably connected to one side of the placement platform 1 near the upper edge; a motor 6, which is detachably embedded in the top surface of the lifting platform 2; a vertical cylinder 7, which is detachably connected to the output end of the motor 6; an input pipe 5, which is detachably connected to the top of the vertical cylinder 7 and communicates internally, and one end of the input pipe 5 is detachably connected to the inlet end of the pump 4; and a support tray 17, on the top surface of the support tray 17, a pressure detector 18 detachably connected.

[0020] It should be noted that in this embodiment, the pump 4 is started first, and the test liquid is pumped into the pump 4 through the input pipe 5. When there is no leakage problem in the pump 4, the water pressure of the test liquid in the input pipe 5 is constant or fluctuates within a qualified range. This is because the pump 4 is an intermediate container. When it is full, the pressure will fill the input pipe 5. If there is a leakage problem in the pump 4, the water pressure flowing in the input pipe 5 will decrease. This is because when there is a leak, the pump 4 cannot store liquid and will not be filled, so there will be no pressure backflow. Naturally, the water pressure in the input pipe 5 will decrease. During the test, the pump 4 operates at a constant power, so its suction force is also stable within a certain range, and the force acting on the test liquid is also relatively constant. Therefore, when the power is constant but a leak occurs, the pressure filling the input pipe 5 will also decrease accordingly. As the water pressure in the input pipe 5 decreases, the pressure acting on the vertical cylinder 7 also decreases. The pressure data obtained can be transmitted through the pressure detector 18 connected to the support tray 17, allowing the staff to obtain intuitive pressure data and thus more quickly determine whether there is a leak in the pump 4. This method is more accurate than visual observation. It should be noted that the selected pressure detector 18 is waterproof, and it can be used as long as its accuracy and waterproof performance meet the requirements of the test liquid.

[0021] In one embodiment, such as Figure 4 As shown, a push plate 13 is provided below the support tray 17. Three sealing rings 16 are inlaid and connected to the outer ring wall of the push plate 13. The sealing rings 16 are in contact with the inner wall of the vertical cylinder 7. The top surface of the push plate 13 and near the two side edges are fixedly connected to the bottom column 15. A spring is fixed to the bottom surface of the bottom column 15. A connecting column is telescopically connected inside the bottom column 15. The top of the connecting column is detachably connected to the bottom surface of the support tray 17. A miniature rangefinder 19 is detachably connected to the top surface of the bottom column 15.

[0022] It should be noted that in this embodiment, a sealing ring 16 is connected to the push plate 13 to ensure the sealing between the push plate 13 and the vertical cylinder 7 during the movement of the push plate 13, and to avoid leakage problems in the vertical cylinder 7 itself. A bottom column 15 is connected to the push plate 13, and a connecting column is connected inside the bottom column 15 by a spring. The connecting column is detachably connected to the bottom surface of the support tray 17. As the support tray 17 rises and falls, the connecting column will also rise and fall with it. This can limit the support tray 17 and prevent it from detaching from the stud 12. A miniature rangefinder 19 is connected to the base column 15 to monitor the distance change between the support tray 17 and the base column 15. Because the pressure acting on the support tray 17 is different, it will also affect the position change of the support tray 17. By corroborating the distance data and pressure data, more accurate data can be obtained and the problem of misjudgment can be avoided.

[0023] In one embodiment, such as Figure 3-4 As shown, the output shaft of the vertical cylinder 7 extends into the vertical cylinder 7 and is detachably connected to a stud 12. The stud 12 is threadedly connected to the middle of the push plate 13, and the support tray 17 is slidably connected to the top of the stud 12. A pair of sliders 14 are fixedly connected to the upper edge of the outer ring wall of the push plate 13. A limiting groove 11 is provided inside the vertical cylinder 7 at a position corresponding to the sliders 14, and the sliders 14 are slidably connected in the limiting groove 11.

[0024] It should be noted that in this embodiment, the vertical cylinder 7 drives the stud 12 to rotate. Since the support tray 17 moves up and down on the stud 12, the rotation of the stud 12 does not affect the support tray 17, thus keeping the support tray 17 stable. Since the push plate 13 is threadedly connected to the stud 12, the rotation of the stud 12 will drive the push plate 13 to move up and down. Since the push plate 13 and the support tray 17 are connected by the bottom column 15 and the connecting column, the push plate 13 will also move up and down synchronously. In order to prevent the push plate 13 from losing its lifting effect due to frictional rotation with the stud 12, a limiting groove 11 is opened in the inner wall of the vertical cylinder 7. At the same time, the slider 14 slides in the limiting groove 11. Fixing the slider 14 to the push plate 13 can restrict the push plate 13 and ensure that it can move up and down smoothly. The support tray 17 can be driven to the appropriate position as needed to accommodate the changes in suction force of the pump 4 on the test liquid under different power levels, thereby improving the flexibility of equipment application and providing accurate data for leakage tests of the pump 4 under different power levels.

[0025] In one embodiment, such as Figure 1 As shown, the input pipe 5 is horizontally set, and one end of the input pipe 5 is detachably connected to a three-way valve 9. The two ends of the three-way valve 9 are detachably connected to two connecting pipes 10. The lifting platform 2 has an L-shaped structure, and a positioning ring 3 is fixed at the top of the vertical plate of the lifting platform 2. One end of the input pipe 5 is placed inside the positioning ring 3.

[0026] It should be noted that in this embodiment, because the lifting platform 2 and the positioning ring 3 provide stable support for the input pipe 5, the input pipe 5 can be kept in a stable horizontal state. In order to improve the reliability of the test data, different test liquids are selected for comparative experiments. Generally, water and mud are set. It should be noted that the solids contained in the mud are set according to the actual working environment of the pump 4. A three-way valve 9 is set to replace the test liquid. This can improve the breadth of test data. By comparison, the leakage prevention performance of the pump 4 can be more clearly obtained.

[0027] In one embodiment, such as Figure 5 and 7As shown, a water receiving trough 20 is provided on the top surface of the placement platform 1 near the lifting platform 2. Conical plates 21 are detachably connected to the two side walls of the placement platform 1 that are far apart from each other. A discharge pipe 22 is fixed to the narrow end of the conical plate 21. A through groove 24 is provided at the position where the placement platform 1 and the conical plate 21 are connected. The conical plate 21 communicates with the inside of the water receiving trough 20 through the through groove 24.

[0028] It should be noted that in this embodiment, a water receiving tank 20 is provided on the placement platform 1, and the water receiving tank 20 is located at the position of the centrifugal wheel, which is also where the liquid is located. When a leak occurs, the leaked liquid will enter the water receiving tank 20 and be collected, instead of being sprayed out directly, which would affect the environment and waste resources. The liquid entering the water receiving tank 20 will be output to a designated collection point through the channel 24, the conical plate 21, and the discharge pipe 22, waiting for the next use, thus achieving the effect of resource recycling.

[0029] In one embodiment, as shown in 7, a guide plate 23 is rotatably connected to the bottom surface of the water receiving tank 20. An inclined groove 26 is provided on the bottom surface of the water receiving tank 20 at a position corresponding to both ends of the guide plate 23. A driver 27 is embedded in one side of the water receiving tank 20. The output shaft of the driver 27 is detachably connected to the midpoint of one side of the guide plate 23.

[0030] It should be noted that in this embodiment, since the test water is divided into two different liquids, the discharged test water also needs to be transported and discharged separately for easy use next time. If they are mixed, both liquids need to be refilled, which does not meet the purpose of recycling. Therefore, a guide plate 23 is set in the water receiving tank 20. The driver 27 is started to drive the guide plate 23 to rotate. The guide plate 23 is adjusted to different tilt directions according to the test liquid. At the same time, the raised end of the guide plate 23 will be higher than another through groove 24. The leaked liquid will flow along the inclined surface of the guide plate 23 to the corresponding through groove 24, and finally pass through the conical plate 21 and be discharged through the discharge pipe 22, so as to achieve the effect of separate discharge.

[0031] In one embodiment, as shown in 5-7, a support plate 25 is detachably connected to the inner walls of opposite sides of the water receiving tank 20 near the top edge. The support plate 25 has an L-shaped structure, and the vertical plate of the support plate 25 is in contact with and attached to the bottom surface of the pump 4.

[0032] It should be noted that, in this embodiment, since the pump 4 is generally large and the centrifugal part is generally suspended, in order to ensure stability during the experiment, a support plate 25 is fixed in the water tank 20. When the pump 4 is connected to the placement platform 1, the centrifugal part will be placed on the support plate 25 and attached to it, thereby providing stable support for the centrifugal part, ensuring the overall stability of the pump 4, and ensuring that the experiment proceeds smoothly.

[0033] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

[0034] Other parts of this invention that are not detailed herein are all prior art and will not be described further here.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slurry pump leakage test device, characterized in that, Includes a placement platform (1), the top surface of which is detachably connected to a pump (4), and the outlet end of the pump (4) is detachably connected to an output pipe (8); The lifting platform (2) is detachably connected to one side of the placement platform (1) and near the upper edge; Motor (6), which is detachably embedded in the top surface of the lifting platform (2); A vertical tube (7) is detachably connected to the output end of a motor (6); The input pipe (5) is detachably connected to the top of the vertical cylinder (7) and is internally connected. One end of the input pipe (5) is detachably connected to the inlet end of the pump (4). The pallet (17) has a pressure detector (18) detachably connected to its top surface.

2. The slurry pump leakage test device according to claim 1, characterized in that, A push plate (13) is provided below the support tray (17). Three sealing rings (16) are inlaid on the outer ring wall of the push plate (13). The sealing rings (16) are in contact with the inner wall of the vertical cylinder (7).

3. The slurry pump leakage test device according to claim 2, characterized in that, The push plate (13) is fixedly connected to the top surface and near both sides of the push plate (13) with a base column (15). The bottom surface of the base column (15) is fixed with a spring. The base column (15) is telescopically connected with a connecting column. The top of the connecting column is detachably connected to the bottom surface of the support tray (17).

4. The slurry pump leakage test device according to claim 3, characterized in that, The top surface of the base column (15) is detachably connected to a miniature rangefinder (19).

5. The slurry pump leakage test device according to claim 1, characterized in that, The output shaft of the vertical cylinder (7) extends into the vertical cylinder (7) and is detachably connected to a stud (12). The stud (12) is threadedly connected to the middle of the push plate (13), and the support tray (17) is slidably connected to the top of the stud (12).

6. The slurry pump leakage test device according to claim 2, characterized in that, A pair of sliders (14) are fixedly connected to the upper edge of the outer ring wall of the push plate (13). A limiting groove (11) is provided in the vertical cylinder (7) at the position corresponding to the slider (14). The slider (14) is slidably connected in the limiting groove (11).

7. The slurry pump leakage test device according to claim 1, characterized in that, The input pipe (5) is horizontally arranged, and a three-way valve (9) is detachably connected to one end of the input pipe (5). Two connecting pipes (10) are detachably connected to both ends of the three-way valve (9). The lifting platform (2) has an L-shaped structure. A positioning ring (3) is fixed at the top of the vertical plate of the lifting platform (2). One section of the input pipe (5) is placed inside the positioning ring (3).

8. The slurry pump leakage test device according to claim 1, characterized in that, The top surface of the placement platform (1) near the lifting platform (2) is provided with a water receiving trough (20). The two side walls of the placement platform (1) that are far apart from each other are detachably connected with conical plates (21). The narrow end of the conical plate (21) is fixed with a discharge pipe (22). A through groove (24) is provided at the position where the placement platform (1) and the conical plate (21) are connected. The conical plate (21) is connected to the inside of the water receiving trough (20) through the through groove (24).

9. A slurry pump leakage test device according to claim 8, characterized in that, The bottom surface of the water receiving tank (20) is rotatably connected to a guide plate (23). The bottom surface of the water receiving tank (20) and the positions corresponding to the two ends of the guide plate (23) are provided with inclined grooves (26). A driver (27) is embedded in one side of the water receiving tank (20). The output shaft of the driver (27) is detachably connected to the midpoint of one side of the guide plate (23).

10. A slurry pump leakage test device according to claim 1, characterized in that, The water receiving tank (20) has a support plate (25) detachably connected to the inner walls of the opposite sides and near the top edge. The support plate (25) has an L-shaped structure and the vertical plate of the support plate (25) is in contact with the bottom surface of the pump (4).

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