Centrifugal pump with flow guide structure

Abstract

The invention is applicable to the technical field of centrifugal pumps, and provides a centrifugal pump with a flow guide structure, which comprises a bottom plate, a mounting plate is arranged at the top of the bottom plate, and a centrifugal pump body is detachably and fixedly connected to the upper end of the mounting plate through bolts and nuts; a feeding assembly is arranged on one side of the centrifugal pump body, a water outlet pipe communicates with the upper end of the side, close to the feeding assembly, of the centrifugal pump body, a water source entering the centrifugal pump body is conveniently filtered through the feeding assembly, and the situation that impurities in water affect the internal structure of the centrifugal pump body is avoided; according to the centrifugal pump, the filter plate can be conveniently cleaned under the condition that the filter plate is not detached, water inflow is prevented from being affected by blockage of the filter plate, vibration generated in the operation process of the centrifugal pump body is conveniently buffered by arranging the first buffering assembly and the second buffering assembly, and the situation that the interior of the centrifugal pump body is affected by long-time vibration is avoided; and meanwhile, noise can be reduced through shock absorption.

Description

Technical Field

[0001] The invention belongs to the technical field of centrifugal pumps, and in particular relates to a centrifugal pump with a flow guide structure. Background Art

[0002] Centrifugal pumps are important fluid conveying equipment and are widely used in various fields of the national economy, such as petrochemicals, aerospace, shipbuilding, and urban water supply, with large usage.

[0003] The cited application number CN202322820580.6 discloses a diversion centrifugal pump, which belongs to the technical field of centrifugal pumps, including a base, a centrifugal pump motor, a diversion chamber shell, an impeller, a water outlet, a shaft rod, a sealing runner, a shaft shell, and a connecting pipe. The top of the base is equipped with a centrifugal pump motor, the output shaft end of the centrifugal pump motor is equipped with a shaft rod, and the outer side of the shaft rod is equipped with a sealing runner. The present invention can conveniently and quickly disassemble and assemble the impeller from the side by setting a disassembly and assembly mechanism, replacing the installation method of removing the outer shell of the centrifugal pump as a whole and then removing the impeller sleeved on the front end of the motor output shaft, and can more conveniently and quickly disassemble and assemble the impeller. By setting a connecting mechanism, the water outlet and the water inlet can be conveniently connected and separated with the external connecting pipe by using the groove, the connecting socket, and the connecting edge, so as to improve the speed and efficiency of the connecting pipe installation and improve convenience.

[0004] The prior art still has the following deficiencies:

[0005] The prior art does not provide a filtering mechanism for the water inlet at the output end of the centrifugal pump, which may cause blockage inside the centrifugal pump after long-term use. Summary of the invention

[0006] The present invention provides a centrifugal pump with a flow guide structure, aiming to solve the problem that the prior art does not provide a filtering mechanism for a water inlet at an output end of the centrifugal pump, thereby possibly causing blockage inside the centrifugal pump after long-term use.

[0007] The present invention is implemented as follows: a centrifugal pump with a flow guide structure comprises: a base plate, a mounting plate is arranged on the top of the base plate, and the upper end of the mounting plate is detachably fixedly connected to a centrifugal pump body by bolts and nuts; a feed assembly is arranged on one side of the centrifugal pump body, and an upper end of one side of the centrifugal pump body close to the feed assembly is connected to a water outlet pipe; the feed assembly comprises a flow guide pipe connected to the feed end of the centrifugal pump body, the other side of the flow guide pipe is connected to a filter box, and the other side of the filter box is connected to a water inlet pipe.

[0008] Preferably, the feed assembly also includes an opening opened on one side of the upper end of the filter box; a pull plate is provided on one side of the upper end of the filter box close to the opening, and the bottom of the pull plate is fixedly connected to a filter plate; the extended end of the filter plate penetrates into the interior of the filter box through the opening and is fixedly connected to a limiting plate.

[0009] Preferably, a sealing strip is fixedly connected to one side of the filter plate located inside the opening.

[0010] Preferably, the feed assembly also includes an ash collecting box detachably fixedly connected to the bottom of the filter box, a connecting port is provided at the bottom of the filter box, the ash collecting box is connected to the interior of the filter box through the connecting port, and a sealing ring is provided on the ash collecting box near the connecting port.

[0011] Preferably, the feed assembly further comprises a sealing baffle connected to one side of the connecting port via a torsion spring.

[0012] Preferably, the feed assembly also includes an installation box fixedly connected to the top of the filter box close to the water inlet pipe, the interior of the installation box is connected to the interior of the filter box, an electric push rod is installed inside the installation box, the telescopic end of the electric push rod penetrates into the interior of the filter box and is fixedly connected to an elastic scraper, and the elastic scraper is in contact with the surface of the filter plate.

[0013] Preferably, the feed assembly further comprises a plurality of cross-distributed guide plates fixedly connected to the interior of the guide pipe, and a plurality of guide plates are respectively provided with a plurality of guide holes.

[0014] Preferably, support columns are fixedly connected to the top of the base plate on all four sides, the upper ends of the four support columns are fixedly connected to the same connecting platform, an adjustment component is provided on the connecting platform, the adjustment component includes a motor installed at the bottom of the connecting platform, the output end of the motor passes through the connecting platform and is fixedly connected to a turntable, sliding balls are fixedly connected to both sides of the bottom of the turntable, a circular groove is provided on the top of the connecting platform, and the two sliding balls are slidably connected to the circular groove.

[0015] Preferably, four first buffer assemblies are arranged on the top of the turntable, and each of the four first buffer assemblies includes a fixed tube fixedly connected to one side of the upper end of the turntable, a movable tube is provided on the upper end sliding sleeve of the fixed tube, a damper is installed between the movable tube and the fixed tube, a buffer spring is provided on the damper, and four of the four movable tubes in the four first buffer assemblies are detachably fixedly connected to the mounting plate.

[0016] Preferably, side plates are fixedly connected to both sides of the mounting plate, and a plurality of second buffer assemblies are respectively provided on one side of the two side plates close to each other, and the structures of the plurality of second buffer assemblies are consistent with those of the four first buffer assemblies. Among the plurality of second buffer assemblies, a plurality of movable tubes close to one side are detachably fixedly connected to the same rubber seat, and the two rubber seats are respectively in contact with two sides of the centrifugal pump body.

[0017] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0018] By providing a feed assembly, it is convenient to filter the water source entering the centrifugal pump body to prevent impurities in the water from affecting the internal structure of the centrifugal pump body. By providing an electric push rod, it is convenient to clean the filter plate without disassembly to prevent the filter plate from being blocked and affecting the water inlet. By providing a first buffer assembly and a second buffer assembly, it is convenient to buffer the vibration generated during the operation of the centrifugal pump body to prevent long-term vibration from affecting the inside of the centrifugal pump body. At the same time, shock absorption can reduce the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from a side view;

[0020] Figure 2 It is a top view of the three-dimensional structure of the present invention;

[0021] Figure 3 It is a front view structural schematic diagram of the present invention;

[0022] Figure 4 It is a side view structural schematic diagram of the present invention;

[0023] Figure 5 It is a side view structural schematic diagram of the present invention;

[0024] Figure 6 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0025] Figure 7 The present invention Figure 6 The enlarged structural diagram at A in the middle;

[0026] Figure 8 The present invention Figure 6 The enlarged structural diagram at B in the middle;

[0027] In the figure: 1. bottom plate; 2. support column; 3. connecting platform; 4. adjustment component; 5. motor; 6. turntable; 7. sliding ball; 8. circular groove; 9. first buffer component; 10. fixed pipe; 11. movable pipe; 12. damper; 13. buffer spring; 14. mounting plate; 15. side plate; 16. second buffer component; 17. rubber seat; 18. centrifugal pump body; 19. feed component; 20. outlet pipe; 21. guide pipe; 22. guide plate; 23. guide hole; 24. filter box; 25. opening; 26. pull plate; 27. filter plate; 28. limit plate; 29. ​​sealing strip; 30. mounting box; 31. electric push rod; 32. elastic scraper; 33. water inlet pipe; 34. ash box; 35. connecting port; 36. sealing baffle. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] The embodiment of the present invention provides a centrifugal pump with a flow guide structure, such as Figure 1-8 As shown, it includes: a base plate 1, a mounting plate 14 is arranged on the top of the base plate 1, and the upper end of the mounting plate 14 is detachably fixedly connected to a centrifugal pump body 18 by bolts and nuts; a feed assembly 19 is arranged on one side of the centrifugal pump body 18, and the upper end of the side of the centrifugal pump body 18 close to the feed assembly 19 is connected with a water outlet pipe 20; the feed assembly 19 includes a guide pipe 21 connected to the feed end of the centrifugal pump body 18, the other side of the guide pipe 21 is connected to a filter box 24, and the other side of the filter box 24 is connected to a water inlet pipe 33.

[0031] It should be noted that, since the prior art does not provide a filtering mechanism for the water inlet at the output end of the centrifugal pump, it may cause blockage to the interior of the centrifugal pump after long-term use. The present solution provides a feed assembly 19 to facilitate filtering of the water source entering the interior of the centrifugal pump body 18, thereby preventing impurities in the water from affecting the internal structure of the centrifugal pump body 18. By providing an electric push rod 31, it is convenient to clean the filter plate 27 without disassembly, thereby preventing the filter plate 27 from being blocked and affecting the water intake. By providing a first buffer assembly 9 and a second buffer assembly 16, it is convenient to buffer the vibration generated during the operation of the centrifugal pump body 18, thereby preventing long-term vibration from affecting the interior of the centrifugal pump body 18. At the same time, shock absorption can reduce the generation of noise.

[0032] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the feed assembly 19 also includes an opening 25 opened on one side of the upper end of the filter box 24; a pull plate 26 is provided on one side of the upper end of the filter box 24 close to the opening 25, and a filter plate 27 is fixedly connected to the bottom of the pull plate 26; the extended end of the filter plate 27 penetrates into the interior of the filter box 24 through the opening 25 and is fixedly connected to a limiting plate 28.

[0033] In this embodiment, by providing a limiting plate 28 , the limiting plate 28 is in contact with the bottom end of the inner part of the filter box 24 , so as to facilitate supporting the filter plate 27 .

[0034] In a further preferred embodiment of the present invention, Figure 1-7 As shown, a sealing strip 29 is fixedly connected to one side of the filter plate 27 located inside the opening 25 .

[0035] In this embodiment, sealing is facilitated.

[0036] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the feed assembly 19 also includes an ash collecting box 34 that is detachably fixedly connected to the bottom of the filter box 24. A connecting port 35 is provided at the bottom of the filter box 24. The ash collecting box 34 is connected to the interior of the filter box 24 through the connecting port 35. A sealing ring is provided near the connecting port 35.

[0037] In this embodiment, it is convenient to collect impurities on the filter plate 27.

[0038] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the feed assembly 19 further includes a sealing baffle 36 connected to one side of the communication port 35 via a torsion spring.

[0039] In this embodiment, in order to shield the communication port 35 when the filter plate 27 is not cleaned, preferably, rubber sealing strips are fixedly connected around the sealing baffle 36 .

[0040] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the feed assembly 19 also includes an installation box 30 fixedly connected to the top of the filter box 24 near the water inlet pipe 33. The interior of the installation box 30 is connected to the interior of the filter box 24. An electric push rod 31 is installed inside the installation box 30. The telescopic end of the electric push rod 31 penetrates into the interior of the filter box 24 and is fixedly connected to an elastic scraper 32. The elastic scraper 32 is in contact with the surface of the filter plate 27.

[0041] In this embodiment, the elastic scraper 32 is driven by the telescopic end of the electric push rod 31 to move on the filter plate 27, so as to clean the filter plate 27.

[0042] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the feed assembly 19 further includes a plurality of cross-distributed guide plates 22 fixedly connected to the inside of the guide pipe 21, and a plurality of guide holes 23 are respectively formed on the plurality of guide plates 22.

[0043] In this embodiment, it is convenient to guide the flow and can achieve the effect of reducing the flow velocity of the fluid. When the fluid passes through the guide tube 21, the fluid is branched and buffered through the guide plate 22 and the guide hole 23, so that the fluid velocity is gradually reduced and the pressure is gradually increased, thereby improving the anti-cavitation performance of the centrifugal pump body 18, thereby avoiding the impeller of the centrifugal pump body 18 being damaged due to the impact of the impeller without deceleration.

[0044] In a further preferred embodiment of the present invention, Figure 1-6 As shown, support columns 2 are fixedly connected to the four sides of the top of the base plate 1, and the upper ends of the four support columns 2 are fixedly connected to the same connecting platform 3. An adjustment component 4 is arranged on the connecting platform 3. The adjustment component 4 includes a motor 5 installed at the bottom of the connecting platform 3. The output end of the motor 5 passes through the connecting platform 3 and is fixedly connected to a turntable 6. Sliding balls 7 are fixedly connected to the two sides of the bottom of the turntable 6. A circular groove 8 is opened on the top of the connecting platform 3, and two sliding balls 7 are slidably connected to the circular groove 8.

[0045] In this embodiment, it is easy to change the direction, thereby facilitating multi-directional use.

[0046] In a further preferred embodiment of the present invention, Figure 1-8 As shown, four first buffer assemblies 9 are arranged on the top of the turntable 6, and the four first buffer assemblies 9 all include a fixed tube 10 fixedly connected to one side of the upper end of the turntable 6, a movable tube 11 is slidingly sleeved on the upper end of the fixed tube 10, a damper 12 is installed between the movable tube 11 and the fixed tube 10, and a buffer spring 13 is sleeved on the damper 12, and the four movable tubes 11 and the mounting plate 14 in the four first buffer assemblies 9 are detachably fixedly connected.

[0047] In this embodiment, it is convenient to dampen and buffer vibration.

[0048] In a further preferred embodiment of the present invention, Figure 1-8 As shown, side plates 15 are fixedly connected to both sides of the mounting plate 14, and a plurality of second buffer assemblies 16 are respectively provided on one side of the two side plates 15 close to each other. The structures of the plurality of second buffer assemblies 16 and the four first buffer assemblies 9 are consistent. Among the plurality of second buffer assemblies 16, a plurality of movable tubes 11 close to one side are detachably fixedly connected to the same rubber seat 17, and the two rubber seats 17 are respectively in contact with the two sides of the centrifugal pump body 18.

[0049] In this embodiment, buffering and shock absorption are facilitated.

[0050] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0051] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0052] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0053] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A centrifugal pump with a flow guide structure, characterized in that: It comprises: a bottom plate, a mounting plate is arranged on the top of the bottom plate, and a centrifugal pump body is detachably fixedly connected to the upper end of the mounting plate by bolts and nuts; A feed assembly is provided on one side of the centrifugal pump body, and an upper end of one side of the centrifugal pump body close to the feed assembly is connected with a water outlet pipe; The feed assembly comprises a guide pipe connected to the feed end of the centrifugal pump body, the other side of the guide pipe is connected to a filter box, and the other side of the filter box is connected to a water inlet pipe.

2. A centrifugal pump with a flow guide structure as claimed in claim 1, characterized in that: The feed assembly also includes an opening formed on one side of the upper end of the filter box; A pull plate is provided on one side of the upper end of the filter box close to the opening, and a filter plate is fixedly connected to the bottom of the pull plate; The extended end of the filter plate penetrates into the interior of the filter box through the opening and is fixedly connected with the limit plate.

3. A centrifugal pump with a flow guide structure as claimed in claim 2, characterized in that: A sealing strip is fixedly connected to one side of the filter plate located inside the opening.

4. A centrifugal pump with a flow guide structure as claimed in claim 2, characterized in that: The feed assembly also includes an ash collecting box detachably fixedly connected to the bottom of the filter box. A connecting port is provided at the bottom of the filter box. The ash collecting box is connected to the inside of the filter box through the connecting port. A sealing ring is provided near the connecting port.

5. A centrifugal pump with a flow guide structure as claimed in claim 4, characterized in that: The feed assembly also includes a sealing baffle connected to one side of the communication port through a torsion spring.

6. A centrifugal pump with a flow guide structure as claimed in claim 5, characterized in that: The feed assembly also includes an installation box fixedly connected to the top of the filter box near the water inlet pipe. The interior of the installation box is connected to the interior of the filter box. An electric push rod is installed inside the installation box. The telescopic end of the electric push rod penetrates into the interior of the filter box and is fixedly connected to an elastic scraper. The elastic scraper is in contact with the surface of the filter plate.

7. A centrifugal pump with a flow guide structure as claimed in claim 1, characterized in that: The feed assembly also includes a plurality of cross-distributed guide plates fixedly connected to the inside of the guide pipe, and a plurality of guide holes are respectively provided on the plurality of guide plates.

8. A centrifugal pump with a flow guide structure as claimed in claim 2, characterized in that: Support columns are fixedly connected to the top of the base plate on all sides, and the upper ends of the four support columns are fixedly connected to the same connecting platform. An adjustment component is arranged on the connecting platform, and the adjustment component includes a motor installed at the bottom of the connecting platform. The output end of the motor passes through the connecting platform and is fixedly connected to a turntable. Sliding balls are fixedly connected to the two sides of the bottom of the turntable. A circular groove is provided on the top of the connecting platform, and two sliding balls are slidably connected to the circular groove.

9. A centrifugal pump with a flow guide structure as claimed in claim 8, characterized in that: Four first buffer assemblies are arranged on the top of the turntable, and each of the four first buffer assemblies includes a fixed tube fixedly connected to one side of the upper end of the turntable, a movable tube is provided on the upper sliding sleeve of the fixed tube, a damper is installed between the movable tube and the fixed tube, a buffer spring is provided on the damper, and the four movable tubes in the four first buffer assemblies are detachably fixedly connected to the mounting plate.

10. A centrifugal pump with a flow guide structure as claimed in claim 9, characterized in that: Side plates are fixedly connected to both sides of the mounting plate, and a plurality of second buffer assemblies are respectively arranged on one side of the two side plates close to each other. The structures of the plurality of second buffer assemblies are consistent with those of the four first buffer assemblies. Among the plurality of second buffer assemblies, a plurality of movable tubes close to one side are detachably fixedly connected to the same rubber seat, and the two rubber seats are respectively in contact with two sides of the centrifugal pump body.

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