Cavitation prevention mechanism based on vertical pipeline desulfurization pump

Abstract

The utility model discloses an anti-cavitation mechanism based on a vertical pipeline desulfurization pump, and belongs to the technical field of desulfurization pumps. An anti-cavitation mechanism based on a vertical pipeline desulfurization pump comprises a desulfurization pump body, an inlet pipe is arranged on the surface of the desulfurization pump body, an outlet pipe is arranged on the surface of the top end of the desulfurization pump body, a connecting pipe is arranged on one side of the inlet pipe, a sealing box is arranged between the inlet pipe and the connecting pipe, and a ball groove is formed in the sealing box. The two ends of the ball groove penetrate through the corresponding surfaces of the sealing box, and a semi-ball filter screen matched with the ball groove is rotationally connected into the ball groove. According to the anti-cavitation mechanism based on the vertical pipeline desulfurization pump, in the working process of the desulfurization pump body, impurities in the semi-spherical filter screen can be cleaned, flowing of liquid of the desulfurization pump body is guaranteed, bubbles are reduced, cavitation in the desulfurization pump body is reduced, the desulfurization pump body works continuously, and the service life of the desulfurization pump body is prolonged. And the conveying efficiency of the desulfurization pump body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization pumps, and more specifically to an anti-cavitation mechanism based on a vertical pipeline desulfurization pump. Background Art

[0002] The desulfurization pump is a high-efficiency pump designed to handle various corrosive and abrasive media. Its structural characteristics, application areas, performance parameters and sealing forms all reflect its importance and professionalism in industrial systems. When selecting, users should comprehensively consider performance requirements and actual application conditions to ensure the accuracy and economy of the selection. Through reasonable selection and use, the desulfurization pump will effectively improve the overall performance and economic benefits of the system.

[0003] Chinese patent application number CN202221785282.7 discloses a desulfurization pump with an anti-cavitation device, including a placement base plate, a desulfurization pump body, a circulation pipeline, a water spray main pipeline, a spray head, a filter plate and a purification box, wherein the placement base plate is installed with a purification box, a spray installation pipe is installed in the purification box, a water spray pipeline is installed on the spray installation pipe, a spray head is installed at one end of the water spray pipeline, a filter screen is installed on the filter plate, filtered water is provided at the bottom end of the purification box, a circulation pipeline is installed on the purification box, a pump is installed on the circulation pipeline, the other end of the circulation pipeline is installed on the top of the purification box, one end of the circulation pipeline is connected to the water spray main pipeline, one end of the water spray main pipeline is connected to the water spray pipeline, a gas pipeline is installed on the purification box, and the other end of the gas pipeline is connected to the desulfurization pump body;

[0004] In the above technical scheme, corrosive gas can be purified, and the device is recycled, energy-saving and environmentally friendly. However, when the desulfurization pump is working, there are many reasons for cavitation. One of them is that the filter is blocked, which causes the liquid flow in the inlet pipe to decrease, which in turn causes many bubbles to be generated near the low pressure of the impeller. The bubbles enter the high-pressure area of ​​the impeller. Due to the pressure, the bubbles burst. The burst bubbles will cause damage to the impeller and the casing. The filter needs to be cleaned. When cleaning, the desulfurization pump needs to stop working, which will affect the efficiency of the desulfurization pump in conveying liquid. The large amount of bubbles generated will cause damage to the impeller for a long time, resulting in low conveying efficiency of the desulfurization pump. In severe cases, the desulfurization pump will be unable to convey liquid. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-cavitation mechanism based on a vertical pipeline desulfurization pump to solve the problems raised in the above background technology:

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cavitation prevention mechanism based on a vertical pipeline desulfurization pump comprises a desulfurization pump body, wherein an inlet pipe is arranged on the surface of the desulfurization pump body, an outlet pipe is arranged on the top surface of the desulfurization pump body, a connecting pipe is arranged on one side of the inlet pipe, a sealing box is arranged between the inlet pipe and the connecting pipe, a spherical groove is arranged inside the sealing box, both ends of the spherical groove penetrate the corresponding surfaces of the sealing box, a semi-spherical filter screen matching therewith is rotatably connected inside the spherical groove, a rotating rod is rotatably connected to the inner wall of the spherical groove, the rotating rod is located at the center of the spherical groove, a detachable sealing plate is arranged on the top surface of the sealing box, a rotating block is rotatably connected to the surface of the sealing plate, one end of the rotating rod simultaneously penetrates the semi-spherical filter screen and the rotating block and extends to the outside of the sealing plate, a plug rod is slidably connected to the surface of the rotating block, a scoop net matching the semi-spherical filter screen is fixedly installed on the bottom of the plug rod, a clamping plate is fixedly connected to the surface of one end of the plug rod, and a clamping groove clamped to the clamping plate is arranged on the top surface of the rotating rod.

[0008] By adopting the above technical solution, impurities inside the hemispherical filter can be cleaned during the operation of the desulfurization pump body, which not only ensures the flow of liquid in the desulfurization pump body, reduces the generation of bubbles, and thus reduces cavitation inside the desulfurization pump body, but also enables the desulfurization pump body to work continuously, thereby improving the delivery efficiency of the desulfurization pump body.

[0009] Preferably, the ends of the inlet pipe, the outlet pipe and the connecting pipe are all fixedly mounted with mounting plates, and the outlet pipe is connected to the outlet connecting pipe by fixing the mounting plate with screws.

[0010] By adopting the above technical solution, the sealing between the pipelines is ensured through the threaded connection of the screws and the mounting plate.

[0011] Preferably, the inlet pipe and the connecting pipe are fixed to each other by screws and a mounting plate respectively.

[0012] Preferably, an impeller is disposed inside the desulfurization pump body, a motor is disposed on one side of the desulfurization pump body, and an output shaft of the motor is fixedly connected to the impeller.

[0013] By adopting the above technical solution, the motor provides power for the desulfurization pump body.

[0014] Preferably, the sealing plate is fixedly connected to the sealing box by screws, the rotating block is rotatably connected to the sealing plate, and the rotating block and the sealing plate are sealed with each other.

[0015] By adopting the above technical solution, the sealing effect of the sealing box is guaranteed.

[0016] Preferably, a knob is fixedly mounted on the top surface of the insertion rod.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1) When the anti-cavitation mechanism based on the vertical pipeline desulfurization pump is in use, the knob is pressed, and the rod and the scoop net move with the card plate and are inserted into the card slot. At this time, the scoop net matches the semi-spherical filter screen, and the knob is turned. The rotating block rotates and drives the semi-spherical filter screen and the scoop net to rotate at the same time. When the knob is rotated 180 degrees, the semi-spherical filter screen is transferred to the spherical slot near the connecting pipe, and the impurities in the semi-spherical filter screen are flushed into the scoop net through the flow of the liquid itself. When the impurities in the semi-spherical filter screen are flushed into the scoop net, the knob is continued to be rotated 180 degrees, and the semi-spherical filter screen is reset. At this time, the rod is quickly pulled up, and the scoop net with the impurities follows the rod to be pulled up, completing the cleaning of the impurities inside the semi-spherical filter screen, ensuring the flow of sufficient liquid inside the desulfurization pump body, reducing the generation of bubbles, and thereby reducing the cavitation inside the desulfurization pump body.

[0019] 2) When the anti-cavitation mechanism based on the vertical pipeline desulfurization pump is in use, the impurities inside the semi-spherical filter can be cleaned during the operation of the desulfurization pump body, so that the desulfurization pump body can work continuously and the conveying efficiency of the desulfurization pump body is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the sealing box structure of the utility model;

[0022] Figure 3 For the utility model Figure 2 A partial enlarged view of middle A;

[0023] Figure 4 This is a schematic diagram of the structure of the semi-spherical filter of the utility model;

[0024] Figure 5 It is a schematic diagram of the ball groove structure of the utility model.

[0025] Explanation of the numbers in the figure: 1. Desulfurization pump body; 2. Inlet pipe; 3. Outlet pipe; 4. Connecting pipe; 5. Sealing box; 6. Ball groove; 7. Semi-spherical filter; 8. Rotating rod; 9. Sealing plate; 10. Rotating block; 11. Insert rod; 12. Fishing net; 13. Slot; 14. Plate; 15. Motor; 16. Knob. DETAILED DESCRIPTION

[0026] Example 1

[0027] See also Figures 1 to 5A cavitation prevention mechanism based on a vertical pipeline desulfurization pump comprises a desulfurization pump body 1, which is a conventional liquid delivery pump in the prior art. An inlet pipe 2 is arranged on the surface of the desulfurization pump body 1, an outlet pipe 3 is arranged on the top surface of the desulfurization pump body 1, a connecting pipe 4 is arranged on one side of the inlet pipe 2, and a sealing box 5 is arranged between the inlet pipe 2 and the connecting pipe 4. When the desulfurization pump body 1 is working, the sealing box 5 is in a sealed state, and a ball groove 6 is opened inside the sealing box 5. Both ends of the ball groove 6 pass through the corresponding surfaces of the sealing box 5, and the interior of the ball groove 6 is rotatably connected with a semi-circular groove matching therewith. The inner wall of the ball filter 7 and the ball groove 6 is rotatably connected with a rotating rod 8, and the rotating rod 8 is located at the center of the ball groove 6. A detachable sealing plate 9 is arranged on the top surface of the sealing box 5, and a rotating block 10 is rotatably connected to the surface of the sealing plate 9. One end of the rotating rod 8 simultaneously penetrates the semi-spherical filter 7 and the rotating block 10 and extends to the outside of the sealing plate 9. The surface of the rotating block 10 is slidably connected with an insert rod 11, and the insert rod 11 is used to guide the scoop net 12. A scoop net 12 matching the semi-spherical filter 7 is fixedly installed at the bottom of the insert rod 11. The scoop net 12 is a centerline woven net in the prior art. One end of the insert rod 11 is fixedly connected to the surface There is a card plate 14, and a card slot 13 is provided on the top surface of the rotating rod 8 to be connected with the card plate 14. By pressing the knob 16, the insertion rod 11 and the scoop net 12 move with the card plate 14 and insert into the card slot 13. At this time, the scoop net 12 matches the semi-spherical filter 7. Turn the knob 16, the rotating block 10 rotates with the semi-spherical filter 7 and the scoop net 12 to rotate at the same time. When the knob 16 is rotated 180 degrees, the semi-spherical filter 7 is rotated into the spherical groove 6 near the connecting pipe 4. Through the flow of the liquid itself, the impurities in the semi-spherical filter 7 are flushed into the inside of the scoop net 12. When the semi-spherical filter After the impurities inside 7 are flushed to the scoop net 12, continue to rotate the knob 16 180 degrees, the semi-spherical filter 7 is reset, and the plug rod 11 is quickly pulled up at this time, and the scoop net 12 is pulled up with the impurities following the plug rod 11, completing the cleaning of the impurities inside the semi-spherical filter 7. During the operation of the desulfurization pump body 1, the impurities inside the semi-spherical filter 7 can be cleaned, which not only ensures the flow of the liquid in the desulfurization pump body 1, reduces the generation of bubbles, and thus reduces the cavitation inside the desulfurization pump body 1, but also makes the desulfurization pump body 1 work continuously, thereby improving the conveying efficiency of the desulfurization pump body 1.

[0028] The ends of the inlet pipe 2, the outlet pipe 3 and the connecting pipe 4 are all fixedly mounted with mounting plates, and the outlet pipe 3 is connected to the outlet connecting pipe by fixing the mounting plate with screws, and the screws and the mounting plate are threadedly connected to ensure the sealing between the pipes.

[0029] The inlet pipe 2 and the connecting pipe 4 are fixed to each other by screws and a mounting plate respectively.

[0030] An impeller is arranged inside the desulfurization pump body 1 , and a motor 15 is arranged on one side of the desulfurization pump body 1 . The motor 15 is a conventional electric motor in the prior art, and the output shaft of the motor 15 is fixedly connected to the impeller. The motor 15 provides power for the desulfurization pump body 1 to work.

[0031] The sealing plate 9 is fixedly connected to the sealing box 5 by screws, the rotating block 10 is rotatably connected to the sealing plate 9 , and the rotating block 10 and the sealing plate 9 are sealed with each other, thereby ensuring the sealing effect of the sealing box 5 .

[0032] A knob 16 is fixedly mounted on the top surface of the insertion rod 11 .

[0033] The utility model uses the following steps: when the anti-cavitation mechanism based on the vertical pipeline desulfurization pump is in use, before the desulfurization pump body 1 works, the semi-spherical filter screen 7 is located in the spherical groove 6 close to the inlet pipe 2. When the desulfurization pump body 1 works, the liquid enters the sealing box 5 through the connecting pipe 4. Since the desulfurization pump body 1 rotates, there is a negative pressure at the pipe mouth of the inlet pipe 2. At this time, the liquid inside the sealing box 5 passes through the semi-spherical filter screen 7 and enters the inlet pipe 2, and then the liquid enters the desulfurization pump body 1. When the liquid passes through the semi-spherical filter screen 7, the impurities inside the liquid are filtered by the semi-spherical filter screen 7. Long-term work will cause impurities to adhere to the inner surface of the semi-spherical filter screen 7, which will cause the liquid flow rate flowing through the inlet pipe 2 to decrease. At this time, bubbles will be generated inside the desulfurization pump body 1. At this time, the desulfurization pump body The body 1 will produce noise and vibration, so it is necessary to clean the impurities in the semi-spherical filter 7, and the knob 16 is manually pressed. At this time, the insertion rod 11 and the scoop net 12 move with the card plate 14 and insert them into the card slot 13. When the card plate 14 is completely inserted into the card slot 13, the scoop net 12 matches the semi-spherical filter 7. Turn the knob 16, and the rotating block 10 rotates with the semi-spherical filter 7 and the scoop net 12 to rotate at the same time. When the knob 16 is rotated 180 degrees, the semi-spherical filter 7 is transferred to the spherical groove 6 near the connecting pipe 4. The impurities in the semi-spherical filter 7 are flushed into the scoop net 12 through the flow of the liquid itself. When the impurities in the semi-spherical filter 7 are flushed into the scoop net 12, the knob 16 is continued to be rotated 180 degrees, and the semi-spherical filter 7 is reset. At this time, the rod 11 is quickly pulled up, and the scoop net 12 is pulled up with the impurities following the rod 11, completing the cleaning of the impurities inside the semi-spherical filter 7. At this time, the liquid flow rate flowing through the inlet pipe 2 returns to normal, and the desulfurization pump body 1 works normally, thereby reducing the generation of bubbles. When the desulfurization pump body 1 is completed, the desulfurization pump body 1 is stopped from rotating. At this time, an external tool is used to remove the sealing plate 9. At this time, the scoop net 12 is removed along with the sealing plate 9, and then the impurities in the scoop net 12 are poured out, and the scoop net 12 and the sealing plate 9 are installed to the initial position. This solution is achieved by pressing the knob 16. At this time, the rod 11 and the scoop net 12 move with the card plate 14 and are inserted into the card slot 13. At this time, the scoop net 12 matches the semi-spherical filter 7, and the knob 16 is turned to turn the block 1 0 Rotate the semi-spherical filter screen 7 and the scoop net 12 to rotate at the same time. When the knob 16 rotates 180 degrees, the semi-spherical filter screen 7 is transferred to the spherical groove 6 near the connecting pipe 4. The impurities in the semi-spherical filter screen 7 are flushed into the scoop net 12 through the flow of the liquid itself. When the impurities in the semi-spherical filter screen 7 are flushed into the scoop net 12, the knob 16 is rotated 180 degrees to reset the semi-spherical filter screen 7. At this time, the plug rod 11 is quickly pulled up, and the scoop net 12 is pulled up with the impurities following the plug rod 11, completing the cleaning of the impurities in the semi-spherical filter screen 7. During the operation of the desulfurization pump body 1, the impurities in the semi-spherical filter screen 7 can be cleaned, which not only ensures the flow of sufficient liquid in the desulfurization pump body 1, but also reduces the generation of bubbles.This reduces the cavitation inside the desulfurization pump body 1, enables the desulfurization pump body 1 to work continuously, and improves the conveying efficiency of the desulfurization pump body 1.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-cavitation mechanism based on a vertical pipeline desulfurization pump, comprising a desulfurization pump body (1), characterized in that: The surface of the desulfurization pump body (1) is provided with an inlet pipe (2), the top surface of the desulfurization pump body (1) is provided with an outlet pipe (3), one side of the inlet pipe (2) is provided with a connecting pipe (4), a sealing box (5) is provided between the inlet pipe (2) and the connecting pipe (4), a ball groove (6) is provided inside the sealing box (5), both ends of the ball groove (6) penetrate the corresponding surface of the sealing box (5), the inside of the ball groove (6) is rotatably connected with a semi-spherical filter (7) matched therewith, the inner wall of the ball groove (6) is rotatably connected with a rotating rod (8), and the rotating rod (8) is located at the center of the ball groove (6). The sealing box (5) is provided with a detachable sealing plate (9) on the top surface, and a rotating block (10) is rotatably connected to the surface of the sealing plate (9). One end of the rotating rod (8) simultaneously penetrates the semi-spherical filter screen (7) and the rotating block (10) and extends to the outside of the sealing plate (9). The surface of the rotating block (10) is slidably connected to an insertion rod (11). A scoop net (12) matching the semi-spherical filter screen (7) is fixedly installed at the bottom of the insertion rod (11). A clamping plate (14) is fixedly connected to the surface of one end of the insertion rod (11). A clamping groove (13) clamped to the clamping plate (14) is provided on the top surface of the rotating rod (8).

2. The anti-cavitation mechanism based on a vertical pipeline desulfurization pump according to claim 1 is characterized in that: The ends of the inlet pipe (2), the outlet pipe (3) and the connecting pipe (4) are all fixedly mounted with mounting plates, and the outlet pipe (3) is connected to the outlet connecting pipe by fixing the mounting plate with screws.

3. The anti-cavitation mechanism based on a vertical pipeline desulfurization pump according to claim 2 is characterized in that: The inlet pipe (2) and the connecting pipe (4) are fixed to each other via screws and a mounting plate respectively.

4. The anti-cavitation mechanism based on a vertical pipeline desulfurization pump according to claim 1 is characterized in that: An impeller is arranged inside the desulfurization pump body (1), and a motor (15) is arranged on one side of the desulfurization pump body (1), wherein an output shaft of the motor (15) is fixedly connected to the impeller.

5. The anti-cavitation mechanism based on a vertical pipeline desulfurization pump according to claim 1 is characterized in that: The sealing plate (9) is fixedly connected to the sealing box (5) by means of screws, the rotating block (10) is rotatably connected to the sealing plate (9), and the rotating block (10) and the sealing plate (9) are sealed to each other.

6. The anti-cavitation mechanism based on a vertical pipeline desulfurization pump according to claim 1 is characterized in that: A knob (16) is fixedly mounted on the top surface of the insertion rod (11).

Images