A vertical centrifugal pump for industrial desulfurization with a protective mechanism

Abstract

The utility model discloses a vertical centrifugal pump for industrial desulfurization with a protection mechanism, belonging to the technical field of vertical centrifugal pumps for desulfurization. A vertical centrifugal pump for industrial desulfurization with a protection mechanism comprises a base plate and a centrifugal pump body fixedly mounted on the surface thereof. The vertical centrifugal pump for industrial desulfurization with a protection mechanism, when the flow rate of liquid inside the inlet pipe is reduced, the flow sensor receives a signal at this time and transmits the signal to an external controller. After the controller processes the information, it sends a signal to the electromagnetic lock to open the electromagnetic lock. At this time, the liquid in the liquid replenishing tank enters the centrifugal pump body through the liquid replenishing pipe. When the flow rate of liquid inside the inlet pipe is reduced, the liquid replenishing tank replenishes the liquid in time, ensuring that the flow rate of liquid inside the inlet pipe is sufficient, avoiding the centrifugal pump body from generating large noise due to the reduction of liquid inside the inlet pipe, and protecting the internal parts of the centrifugal pump body, thereby enabling the centrifugal pump body to be used normally and extending the service life of the centrifugal pump body.

Description

Technical Field

[0001] The utility model relates to the technical field of a vertical centrifugal pump for desulfurization, and more specifically to a vertical centrifugal pump for industrial desulfurization with a protection mechanism. Background Art

[0002] The vertical centrifugal pump for desulfurization is a centrifugal pump designed for flue gas desulfurization process. It is efficient, wear-resistant and has a long seal life. The vertical centrifugal pump for desulfurization is a high-efficiency pump designed to cope with the harsh conditions in flue gas desulfurization. Its structural characteristics, application areas, performance parameters and sealing forms all reflect its importance and professionalism in the desulfurization system. 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 vertical centrifugal pump for desulfurization will effectively improve the overall performance and economic benefits of the desulfurization system.

[0003] Chinese patent application number CN202121830528.3 discloses a centrifugal pump with a protective device, including a protective box, a top cover fixedly connected to the top of the protective box, a shock-absorbing pad filled in the top cover, a pump body installed in the protective box, and piston rods on both sides of the pump body. The utility model can protect two piston rods on the shock-absorbing rods and buffer balls connected by four fixed rods through the use of the protective mechanism, and the shock-absorbing rods and buffer balls can reduce the shock of the two piston rods when the pump body is working;

[0004] In the above technical solution, through the coordinated use of the supporting mechanism, the centrifugal pump with a protective device is supported as a whole through the base at the bottom, thereby improving the stability of the centrifugal pump with a protective device during use, and avoiding the problem that the piston rod of the centrifugal pump is damaged due to the lack of a special protective device during use, causing the piston rod to change direction and affecting the normal use of the centrifugal pump. However, when the centrifugal pump is started or the seal in the pipeline is damaged during operation, insufficient liquid flow entering the pipe will be caused. At this time, the high-speed rotation of the centrifugal pump will generate greater noise and cause local high temperature of the internal components of the centrifugal pump, which may cause damage to the internal parts of the centrifugal pump, thereby affecting the normal use and service life of the centrifugal pump. Utility Model Content

[0005] The purpose of the utility model is to provide a vertical centrifugal pump for industrial desulfurization with a protection mechanism 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 vertical centrifugal pump for industrial desulfurization with a protective mechanism comprises a base plate and a centrifugal pump body fixedly mounted on the surface thereof, an inlet pipe and an outlet pipe being fixedly mounted on the surface of the centrifugal pump body, respectively, a bracket being fixedly mounted on the surface of the base plate, the bracket being located on one side of the centrifugal pump body, a liquid replenishing tank being fixedly mounted on the end surface of the bracket, a connecting pipe being fixedly mounted between the liquid replenishing tank and the outlet pipe, a liquid replenishing tube being fixedly mounted between the liquid replenishing tank and the inlet pipe, an electromagnetic lock being fixedly mounted on the surface of the liquid replenishing tube, a fixing bracket being fixedly mounted on the surface of the inlet pipe, a flow sensor being fixedly mounted on the surface of the fixing bracket, and the detection end of the flow sensor extending to the inner surface of the inlet pipe.

[0008] By adopting the above technical solution, when the liquid flow entering the pipe decreases, the flow sensor receives a signal and transmits the signal to an external controller. After processing the information, the controller sends a signal to the electromagnetic lock to open the electromagnetic lock. At this time, the liquid in the replenishing tank enters the centrifugal pump body through the replenishing pipe. When the liquid flow entering the pipe decreases, the replenishing tank replenishes the liquid in time, ensuring that the liquid flow entering the pipe is sufficient, avoiding the centrifugal pump body from generating loud noise due to the reduction of the liquid entering the pipe, and protecting the internal parts of the centrifugal pump body, thereby allowing the centrifugal pump body to be used normally and extending the service life of the centrifugal pump body.

[0009] Preferably, a mounting frame is fixedly mounted on the surface of the base plate, and the centrifugal pump body is fixedly connected to the base plate via the mounting frame.

[0010] Preferably, a motor is fixedly mounted on the surface of the base plate, the motor is located on one side of the centrifugal pump body, and a linkage shaft is provided between the motor and the centrifugal pump body.

[0011] By adopting the above technical solution, the motor provides power for the operation of the centrifugal pump body.

[0012] Preferably, an additional tube connected to the inlet tube is fixedly installed on the end surface of the inlet tube, a filter barrel is arranged inside the additional tube, a sealing plate matching the inlet tube is fixedly installed on the bottom surface of the filter barrel, a guide rod is slidably connected inside the sealing plate, a scraper is movably connected to the inner surface of the filter barrel, and a connecting rod is fixedly connected between the scraper and the guide rod.

[0013] By adopting the above technical solution, the ball head is manually pulled, and the ball head moves with the guide rod to stretch the spring, so that the scraper follows the movement of the guide rod to clean the inner wall of the filter barrel, so that the filter barrel can be quickly cleaned and inspected.

[0014] Preferably, one end of the guide rod is fixedly connected to a ball head, a spring is sleeved on the surface of the guide rod, one end of the spring is fixedly connected to the surface of the sealing plate, and the other end of the spring is fixedly connected to the ball head.

[0015] Preferably, a guide platform is fixedly mounted on one end surface of the filter barrel, two buckles are correspondingly fixedly mounted on the surface of the sealing plate, and a slot matching the buckle is fixedly mounted on the surface of the installation tube, and the buckle is an elastic resettable lock buckle.

[0016] By adopting the above technical solution, the clamp and the clamping groove are engaged or disengaged with each other, so that the filter barrel can be disassembled and assembled from the installation pipe more conveniently and quickly.

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

[0018] 1) When the vertical centrifugal pump for industrial desulfurization with a protection mechanism is in use, when the flow rate of the liquid entering the pipe decreases, the flow sensor receives a signal and transmits the signal to an external controller. After processing the information, the controller sends a signal to the electromagnetic lock to open the electromagnetic lock. At this time, the liquid in the replenishing tank enters the centrifugal pump body through the replenishing pipe. When the flow rate of the liquid entering the pipe decreases, the replenishing tank replenishes the liquid in time, ensuring that the flow rate of the liquid entering the pipe is sufficient, avoiding the centrifugal pump body from generating loud noise due to the reduction of the liquid entering the pipe, and protecting the internal parts of the centrifugal pump body, thereby allowing the centrifugal pump body to be used normally and extending the service life of the centrifugal pump body.

[0019] 2) When the vertical centrifugal pump for industrial desulfurization with a protective mechanism is in use, the buckle and the slot are engaged or disengaged with each other, so that the filter barrel can be disassembled and assembled from the installation pipe more conveniently and quickly. The ball head is manually pulled, and the ball head moves with the guide rod to stretch the spring, so that the scraper follows the movement of the guide rod to clean the inner wall of the filter barrel, so that the filter barrel can be quickly cleaned and inspected. 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 structure of the liquid replenishing tank of the utility model;

[0022] Figure 3 This is a schematic diagram of the inlet pipe structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the filter barrel structure of the utility model.

[0024] Explanation of the numbers in the figure: 1. Base plate; 2. Centrifugal pump body; 3. Inlet pipe; 4. Outlet pipe; 5. Bracket; 6. Fluid replenishment tank; 7. Fixed bracket; 8. Flow sensor; 9. Connecting pipe; 10. Fluid replenishment pipe; 11. Electromagnetic lock; 12. Linkage shaft; 13. Mounting bracket; 14. Additional pipe; 15. Filter barrel; 16. Sealing plate; 17. Guide rod; 18. Scraper; 19. Connecting rod; 20. Ball head; 21. Spring; 22. Guide table; 23. Buckle; 24. Motor; 25. Slot. DETAILED DESCRIPTION

[0025] Example 1

[0026] See also Figures 1 to 4 A vertical centrifugal pump for industrial desulfurization with a protective mechanism comprises a bottom plate 1 and a centrifugal pump body 2 fixedly mounted on the surface thereof, the centrifugal pump body 2 being a conventional centrifugal pump body 2 in the prior art, an inlet pipe 3 and an outlet pipe 4 being fixedly mounted on the surface of the centrifugal pump body 2, a bracket 5 being fixedly mounted on the surface of the bottom plate 1, the bracket 5 being located on one side of the centrifugal pump body 2, a liquid replenishment tank 6 being fixedly mounted on the end surface of the bracket 5, the liquid replenishment tank 6 being used to store liquid, a connecting pipe 9 being fixedly mounted between the liquid replenishment tank 6 and the outlet pipe 4, a liquid replenishment tube 10 being fixedly mounted between the liquid replenishment tank 6 and the inlet pipe 3, an electromagnetic lock 11 being fixedly mounted on the surface of the liquid replenishment tube 10, the electromagnetic lock 11 being a conventional electromagnetic switch lock in the prior art, the electromagnetic lock 11 being controlled by an external controller, a fixing bracket 7 being fixedly mounted on the surface of the inlet pipe 3, a flow sensor being fixedly mounted on the surface of the fixing bracket 7 Device 8, flow sensor 8 is a conventional sensor for detecting liquid flow in the prior art. The flow sensor 8 is electrically connected to the controller through a wire. The detection end of the flow sensor 8 extends to the inner surface of the inlet pipe 3. When the liquid flow through the inlet pipe 3 decreases, the flow sensor 8 receives a signal and transmits the signal to the external controller. After processing the information, the controller sends a signal to the electromagnetic lock 11 to open the electromagnetic lock 11. At this time, the liquid in the liquid replenishing tank 6 enters the centrifugal pump body 2 through the liquid replenishing tube 10. When the liquid flow in the inlet pipe 3 decreases, the liquid replenishing tank 6 replenishes the liquid in time, ensuring that the liquid flow in the inlet pipe 3 is sufficient, avoiding the centrifugal pump body 2 from generating a large noise due to the reduction of the liquid in the inlet pipe 3, and protecting the internal parts of the centrifugal pump body 2, thereby allowing the centrifugal pump body 2 to be used normally and extending the service life of the centrifugal pump body 2.

[0027] A mounting frame 13 is fixedly mounted on the surface of the bottom plate 1 , and the centrifugal pump body 2 is fixedly connected to the bottom plate 1 via the mounting frame 13 .

[0028] A motor 24 is fixedly mounted on the surface of the base plate 1. The motor 24 is a conventional electric motor in the prior art. The motor 24 is located on one side of the centrifugal pump body 2. A linkage shaft 12 is provided between the motor 24 and the centrifugal pump body 2. The motor 24 provides power for the operation of the centrifugal pump body 2.

[0029] The utility model uses the following steps: when the industrial desulfurization vertical centrifugal pump with a protective mechanism is in use, when the centrifugal pump body 2 is in normal use, the motor 24 rotates to drive the linkage shaft 12 to rotate, thereby driving the centrifugal pump body 2 to be used, the inlet pipe 3 is connected with the liquid to be extracted, the centrifugal pump body 2 works to draw the liquid into the inlet pipe 3, and discharges it through the outlet pipe 4. The pressure of the outlet pipe 4 is relatively high. At this time, the liquid enters the liquid replenishing tank 6 through the connecting pipe 9. When the centrifugal pump body 2 is started instantly or the internal seal of the pipeline is damaged during operation, the liquid flow inside the inlet pipe 3 will be reduced. At this time, the flow sensor 8 receives the signal and transmits the signal to the external controller. After processing the information, the controller sends a signal to the electromagnetic lock 11 to open the electromagnetic lock 11. Open, at this time, the liquid in the replenishing tank 6 enters the centrifugal pump body 2 through the replenishing tube 10. In this scheme, when the flow of liquid inside the inlet pipe 3 is reduced, the flow sensor 8 receives the signal and transmits the signal to the external controller. After processing the information, the controller sends a signal to the electromagnetic lock 11 to open the electromagnetic lock 11. At this time, the liquid in the replenishing tank 6 enters the centrifugal pump body 2 through the replenishing tube 10. When the flow of liquid inside the inlet pipe 3 is reduced, the replenishing tank 6 replenishes the liquid in time, ensuring that the flow of liquid inside the inlet pipe 3 is sufficient, avoiding the centrifugal pump body 2 from generating large noise due to the reduction of liquid in the inlet pipe 3, and protecting the internal parts of the centrifugal pump body 2, thereby enabling the centrifugal pump body 2 to be used normally and extending the service life of the centrifugal pump body 2.

[0030] Example 2

[0031] See also Figures 1 to 4 , the difference in the basis of the combined implementation is that an additional tube 14 connected to the end surface of the inlet tube 3 is fixedly installed, and a filter barrel 15 is arranged inside the additional tube 14. The filter barrel 15 is used to filter impurities in the liquid. A sealing plate 16 matching the inlet tube 3 is fixedly installed on the bottom surface of the filter barrel 15. The sealing plate 16 is used to seal the additional tube 14 to prevent liquid leakage. A guide rod 17 is slidably connected inside the sealing plate 16. The guide rod 17 is used for guiding the movement of the scraper 18. The inner surface of the filter barrel 15 is movably connected with a scraper 18. The scraper 18 can clean the inner wall of the filter barrel 15. A connecting rod 19 is fixedly connected between the scraper 18 and the guide rod 17. The ball head 20 is manually pulled. At this time, the ball head 20 moves the guide rod 17 to stretch the spring 21, so that the scraper 18 follows the movement of the guide rod 17 to clean the inner wall of the filter barrel 15, so that the filter barrel 15 can be quickly cleaned and inspected.

[0032] One end of the guide rod 17 is fixedly connected to a ball head 20 , a spring 21 is sleeved on the surface of the guide rod 17 , one end of the spring 21 is fixedly connected to the surface of the sealing plate 16 , and the other end of the spring 21 is fixedly connected to the ball head 20 .

[0033] A guide platform 22 is fixedly installed on the surface of one end of the filter barrel 15, and two buckles 23 are fixedly installed on the surface of the sealing plate 16. A slot 25 matching the buckle 23 is fixedly installed on the surface of the mounting tube 14. The buckle 23 is an elastic resettable lock. The buckle 23 and the slot 25 are engaged or disengaged with each other, making it easier and quicker to disassemble the filter barrel 15 from the mounting tube 14.

[0034] The utility model uses the following steps: When the industrial desulfurization vertical centrifugal pump with a protective mechanism is in use, the liquid flow rate entering the pipe 3 is reduced, which may be because the filter barrel 15 inside the pipe is blocked. When cleaning the filter barrel 15, the centrifugal pump body 2 is stopped, and the buckle 23 is manually pressed to disengage the buckle 23 from the card slot 25, and the sealing plate 16 is pulled outward. At this time, the filter barrel 15 is taken out from the installation pipe 14. After the filter barrel 15 is taken out, when the inner wall of the filter barrel 15 is dirty, in order to improve the permeability of the filter barrel 15, the ball head 20 is manually pulled. At this time, the ball head 20 moves with the guide rod 17 to stretch the spring 21, thereby making the scraper 18 follow As the guide rod 17 moves, the inner wall of the filter barrel 15 is cleaned. After the cleaning is completed, the ball head 20 is released. At this time, the guide rod 17 is reset with the scraper 18, and then the buckle 23 and the slot 25 are manually engaged and locked, so as to facilitate the installation of the filter barrel 15 into the installation tube 14. This scheme makes it easier and faster to disassemble and assemble the filter barrel 15 from the installation tube 14 by engaging or disengaging the buckle 23 and the slot 25. By manually pulling the ball head 20, the ball head 20 moves the guide rod 17 to stretch the spring 21, so that the scraper 18 follows the guide rod 17 to clean the inner wall of the filter barrel 15, so that the filter barrel 15 can be quickly cleaned and inspected.

[0035] 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. A vertical centrifugal pump for industrial desulfurization with a protective mechanism, comprising a base plate (1) and a centrifugal pump body (2) fixedly mounted on the surface thereof, characterized in that: An inlet pipe (3) and an outlet pipe (4) are fixedly mounted on the surface of the centrifugal pump body (2), a bracket (5) is fixedly mounted on the surface of the bottom plate (1), the bracket (5) is located on one side of the centrifugal pump body (2), a liquid replenishing tank (6) is fixedly mounted on the end surface of the bracket (5), a connecting pipe (9) is fixedly mounted between the liquid replenishing tank (6) and the outlet pipe (4), a liquid replenishing tube (10) is fixedly mounted between the liquid replenishing tank (6) and the inlet pipe (3), an electromagnetic lock (11) is fixedly mounted on the surface of the liquid replenishing tube (10), a fixing frame (7) is fixedly mounted on the surface of the inlet pipe (3), a flow sensor (8) is fixedly mounted on the surface of the fixing frame (7), and a detection end of the flow sensor (8) extends to the inner surface of the inlet pipe (3).

2. The vertical centrifugal pump for industrial desulfurization with a protection mechanism according to claim 1, characterized in that: A mounting frame (13) is fixedly mounted on the surface of the base plate (1), and the centrifugal pump body (2) is fixedly connected to the base plate (1) via the mounting frame (13).

3. The vertical centrifugal pump for industrial desulfurization with a protection mechanism according to claim 1, characterized in that: A motor (24) is fixedly mounted on the surface of the base plate (1); the motor (24) is located on one side of the centrifugal pump body (2); and a linkage shaft (12) is provided between the motor (24) and the centrifugal pump body (2).

4. The vertical centrifugal pump for industrial desulfurization with a protection mechanism according to claim 1, characterized in that: The end surface of the inlet pipe (3) is fixedly mounted with an additional pipe (14) in communication therewith, the internal part of the additional pipe (14) is provided with a filter barrel (15), the bottom surface of the filter barrel (15) is fixedly mounted with a sealing plate (16) matching the inlet pipe (3), the internal part of the sealing plate (16) is slidably connected with a guide rod (17), the inner surface of the filter barrel (15) is movably connected with a scraper (18), and a connecting rod (19) is fixedly connected between the scraper (18) and the guide rod (17).

5. The vertical centrifugal pump for industrial desulfurization with a protection mechanism according to claim 4, characterized in that: One end of the guide rod (17) is fixedly connected to a ball head (20), a spring (21) is sleeved on the surface of the guide rod (17), one end of the spring (21) is fixedly connected to the surface of the sealing plate (16), and the other end of the spring (21) is fixedly connected to the ball head (20).

6. The vertical centrifugal pump for industrial desulfurization with a protection mechanism according to claim 4, characterized in that: A flow guide platform (22) is fixedly mounted on the surface of one end of the filter barrel (15), two buckles (23) are correspondingly fixedly mounted on the surface of the sealing plate (16), and a slot (25) matching the buckle (23) is fixedly mounted on the surface of the installation tube (14), and the buckle (23) is an elastic resetting lock buckle.

Images