Flow self-adjusting centrifugal pump

Abstract

The invention is suitable for the technical field of centrifugal pumps, and provides a flow self-adjusting centrifugal pump which comprises a base, a supporting plate is arranged at the upper end of the base, a damping assembly is arranged between the supporting plate and the base, and a centrifugal pump motor is arranged on the supporting plate; by arranging the water inlet assembly, water entering the centrifugal pump can be conveniently filtered, it is avoided that impurities enter the centrifugal pump to damage an impeller, by arranging a buffer pipe, inflow water can be conveniently buffered, it is avoided that the water directly impacts a filter plate for a long time, by arranging a water outlet adjusting assembly, the water outlet adjusting assembly can adjust the water outlet adjusting assembly, and the water outlet adjusting assembly can adjust the water outlet adjusting assembly. The water outlet flow is conveniently and automatically controlled and adjusted, vibration generated in the operation process is conveniently damped and buffered by arranging the damping assembly, sealing detection on the connecting position of the rotating rod and the pump body is convenient by arranging the detection assembly, and when leakage occurs, water is conveniently prevented from directly splashing through a protective cover.

Description

Technical Field

[0001] The present invention belongs to the technical field of centrifugal pumps, and particularly relates to a flow self-adjusting centrifugal pump. Background Art

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

[0003] The patent application No. 201820327993.7 discloses a flow automatic adjustment system for a high-speed centrifugal pump, including a high-speed centrifugal pump, a centrifugal pump water inlet, a centrifugal pump joint, a first buffer pipe, a water flow sensor, a solenoid valve, a PLC controller, a second buffer pipe, a water inlet joint, and a water pipe. One end of the high-speed centrifugal pump is provided with a centrifugal pump water inlet, and one end of the centrifugal pump water inlet is connected with a centrifugal pump joint. The structure of the present invention is scientific and reasonable, and it is safe and convenient to use. A water flow sensor is provided to facilitate the monitoring of the water flow in the water pipe, and it is convenient for the PLC controller to adjust through the solenoid valve. The first buffer pipe and the second buffer pipe are provided to facilitate the reduction of vibration at the centrifugal pump joint and the connection between the second buffer pipe and the water pipe. A centrifugal pump joint is provided to facilitate the reduction of vibration when water enters the high-speed centrifugal pump. A water inlet joint is provided to facilitate the reduction of the impact when water enters the second buffer pipe, enhancing the stability of the entire system.

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

[0005] Some existing centrifugal pumps often do not process the materials during the suction and discharge process. Some liquids contain relatively large impurities, and the impurities entering the pump will damage the impeller, shortening the service life of the pump. Summary of the Invention

[0006] The present invention provides a flow self-adjusting centrifugal pump, aiming to solve the problem that some existing centrifugal pumps often do not process the materials during the suction and discharge process, some liquids contain relatively large impurities, and the impurities entering the pump will damage the impeller, shortening the service life of the pump.

[0007] The present invention is implemented as follows. A flow self-adjusting centrifugal pump includes: a base, a support plate is provided at the upper end of the base, a shock absorption component is provided between the support plate and the base, and a centrifugal pump motor is provided on the support plate; the output end of the centrifugal pump motor is fixedly connected to a rotating rod, the other side of the rotating rod is provided with a pump body, the extended end of the rotating rod penetrates into the pump body and is fixedly connected to a mounting plate, the other side of the mounting plate is detachably and fixedly connected to an impeller, and a water inlet component is provided on one side of the pump body; the water inlet component includes a water inlet pipe communicated with one side of the pump body, the other side of the water inlet pipe is communicated with a filter box, a sealing door is installed at the front end of the filter box, the other side of the filter box is communicated with a buffer pipe, and the inside of the buffer pipe is spiral.

[0008] Preferably, the water inlet component further includes a filter plate detachably and fixedly connected inside the filter box; a mounting box is communicated with the top of the filter box, a sealing ring is installed at the communication part between the mounting box and the filter box, and through holes are formed in the sealing ring; an electric push rod is installed inside the mounting box, and the telescopic end of the electric push rod passes through the through hole and is fixedly connected to a rubber scraper, and the rubber scraper is in contact with the surface of the filter plate.

[0009] Preferably, buffer plates are respectively fixedly connected to the side of the support plate close to the buffer pipe and the filter box, and the two buffer plates are respectively in contact with the bottom of the buffer pipe and the filter box.

[0010] Preferably, a water outlet adjusting component is provided at the upper end of the pump body, and the water outlet adjusting component includes a first water outlet pipe communicated with the top of the pump body, the upper end of the first water outlet pipe is communicated with an adjusting box, and the other side of the adjusting box is communicated with a second water outlet pipe.

[0011] Preferably, the water outlet adjusting component includes a stabilizing plate installed on the outer side of one side of the adjusting box, an adjusting motor is installed at the upper end of the stabilizing plate, and the output end of the adjusting motor penetrates into the adjusting box and is fixedly connected to an adjusting flat plate.

[0012] Preferably, the water outlet adjusting component further includes that the other side of the adjusting flat plate is rotatably connected to the inner wall of the other side of the adjusting box, and elastic strips are respectively fixedly connected to the four sides of the adjusting flat plate.

[0013] Preferably, a detection assembly is provided at the connection between the rotating rod and the pump body. The detection assembly includes protective covers arranged at the upper and lower ends on the side of the pump body close to the rotating rod. One end of the front and back sides of the two protective covers close to each other is fixedly connected with a connecting plate respectively. Among the four connecting plates, every two connecting plates close to each other are detachably and fixedly connected. A sealing strip is installed inside the side of the two protective covers close to each other. One end of the side of the two protective covers close to each other is respectively provided with an arc-shaped groove. The two arc-shaped grooves are respectively in contact with the upper and lower ends of the rotating rod. Openings are respectively provided on the other side of the two protective covers. Sealing blocks are fixedly connected to the inner walls of the two openings respectively. The two sealing blocks are respectively in contact with the side of the pump body close to the connection with the rotating rod.

[0014] Preferably, the detection assembly further includes a water flow sensor installed inside the protective cover close to the lower end, and an alarm is installed at the upper end of the protective cover.

[0015] Preferably, the shock absorption assembly includes shock absorption seats respectively fixedly connected to the four surrounding sides of the bottom of the base. Shock absorption blocks are respectively slidably connected to the tops of the four shock absorption seats. Damper devices are installed between the four shock absorption blocks and the interiors of the four shock absorption seats respectively. Buffer springs are sleeved on the four damper devices.

[0016] Preferably, return-shaped frames are respectively fixedly connected to the front and rear ends on the side of the upper end of the support plate close to the centrifugal pump motor. The same fixed rod is fixedly connected between the inner walls of the two return-shaped frames. Heat dissipation blowers are respectively detachably and fixedly connected to the two fixed rods.

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

[0018] By providing the water inlet assembly, it is convenient to filter the water entering the centrifugal pump, avoiding impurities from entering the interior and damaging the impeller. By providing the buffer pipe, it is convenient to buffer the inlet water, avoiding the water directly impacting the filter plate for a long time. By providing the water outlet adjustment assembly, it is convenient to automatically control and adjust the water outlet flow rate. By providing the shock absorption assembly, it is convenient to shock absorb and buffer the vibration generated during operation. By providing the detection assembly, it is convenient to detect the seal at the connection between the rotating rod and the pump body. When leakage occurs, it is convenient to prevent the water from splashing directly through the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is a front structural schematic diagram of the present invention;

[0021] Figure 3 is a top structural schematic diagram of the present invention;

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

[0023] Figure 5 is a schematic front sectional view structure diagram of the present invention;

[0024] Figure 6 is the present invention Figure 5 enlarged schematic diagram at position A in;

[0025] Figure 7 is the present invention Figure 5 enlarged schematic diagram at position B in;

[0026] Figure 8 is the present invention Figure 5 enlarged schematic diagram at position C in;

[0027] In the figure: 1, base; 2, support plate; 3, centrifugal pump motor; 5, water outlet regulating assembly; 6, water inlet assembly; 7, shock absorption assembly; 8, rotating rod; 9, pump body; 10, detection assembly; 11, first water outlet pipe; 12, regulating box; 13, stabilizing plate; 14, regulating motor; 15, regulating flat plate; 16, elastic strip; 17, water inlet pipe; 18, filter box; 19, buffer pipe; 20, sealing door; 21, installation box; 22, filter plate; 23, electric push rod; 24, sealing ring; 25, rubber scraping plate; 26, buffer plate; 27, protective cover; 28, connecting plate; 29, opening; 30, arc groove; 31, shock absorption seat; 32, shock absorption block; 33, damper; 34, return frame; 35, fixed rod; 36, heat dissipation fan; 37, mounting plate; 38, water flow sensor. Specific embodiments

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application 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 drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0029] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] An embodiment of the present invention provides a flow self-adjusting centrifugal pump, as Figures 1-8 shown, including: a base 1, a support plate 2 is arranged at the upper end of the base 1, a shock absorption component 7 is arranged between the support plate 2 and the base 1, and a centrifugal pump motor 3 is arranged on the support plate 2; the output end of the centrifugal pump motor 3 is fixedly connected with a rotating rod 8, the other side of the rotating rod 8 is provided with a pump body 9, the extended end of the rotating rod 8 penetrates into the pump body 9 and is fixedly connected with a mounting plate 37, the other side of the mounting plate 37 is detachably and fixedly connected with an impeller, and a water inlet component 6 is arranged on one side of the pump body 9; the water inlet component 6 includes a water inlet pipe 17 communicated with one side of the pump body 9, the other side of the water inlet pipe 17 is communicated with a filter box 18, a sealing door 20 is installed at the front end of the filter box 18, the other side of the filter box 18 is communicated with a buffer pipe 19, and the inside of the buffer pipe 19 is spiral.

[0031] It should be noted that since some existing centrifugal pumps often do not process the suction and discharge of materials during use, some liquids contain relatively large impurities. When the impurities enter the pump, they will damage the impeller, shortening the service life of the pump. In this solution, by setting the water inlet component 6, it is convenient to filter the water entering the centrifugal pump to prevent impurities from entering and damaging the impeller. By setting the buffer pipe 19, it is convenient to buffer the incoming water to prevent the water from directly impacting the filter plate 22 for a long time. By setting the water outlet adjustment component 5, it is convenient to automatically control and adjust the water outlet flow. By setting the shock absorption component 7, it is convenient to absorb and buffer the vibration generated during operation. By setting the detection component 10, it is convenient to detect the seal at the connection between the rotating rod 8 and the pump body 9. When leakage occurs, it is convenient to prevent the water from splashing directly through the protective cover 27.

[0032] In a further preferred embodiment of the present invention, as Figures 1-7 shown, the water inlet component 6 further includes a filter plate 22 detachably and fixedly connected inside the filter box 18; the top of the filter box 18 is communicated with a mounting box 21, a sealing ring 24 is installed at the connection between the mounting box 21 and the filter box 18, and through holes are formed in the sealing ring 24; an electric push rod 23 is installed inside the mounting box 21, and the telescopic end of the electric push rod 23 passes through the through hole and is fixedly connected with a rubber scraper 25, and the rubber scraper 25 is in contact with the surface of the filter plate 22.

[0033] In this embodiment, it is convenient to scrape off the impurities on the surface of the filter plate 22 to prevent the filter plate 22 from being blocked and affecting the water inlet.

[0034] In a further preferred embodiment of the present invention, as Figures 1-5 shown, buffer plates 26 are respectively fixedly connected to the side of the support plate 2 close to the buffer pipe 19 and the filter box 18, and the two buffer plates 26 are respectively in contact with the bottom of the buffer pipe 19 and the filter box 18.

[0035] In this embodiment, it is convenient for support and shock absorption during operation.

[0036] In a further preferred embodiment of the present invention, as Figures 1-8 shown, an outlet regulating assembly 5 is provided at the upper end of the pump body 9. The outlet regulating assembly 5 includes a first outlet pipe 11 communicating with the top of the pump body 9. The upper end of the first outlet pipe 11 is communicated with a regulating box 12, and the other side of the regulating box 12 is communicated with a second outlet pipe.

[0037] In this embodiment, it is convenient for water outlet.

[0038] In a further preferred embodiment of the present invention, as Figures 1-8 shown, the outlet regulating assembly 5 includes a stabilizing plate 13 installed on the outer side of one side of the regulating box 12. A regulating motor 14 is installed at the upper end of the stabilizing plate 13. The output end of the regulating motor 14 penetrates into the regulating box 12 and is fixedly connected with a regulating flat plate 15.

[0039] In this embodiment, according to the required water outlet flow rate, the regulating motor 14 is started. The output end of the regulating motor 14 rotates to drive the regulating flat plate to rotate, so as to facilitate adjusting the opening between the regulating flat plate 15 and the regulating box 12 and facilitate the water flow through.

[0040] In a further preferred embodiment of the present invention, as Figures 1-8 shown, the outlet regulating assembly 5 further includes that the other side of the regulating flat plate 15 is rotatably connected with the inner wall of the other side of the regulating box 12. Elastic strips 16 are respectively fixedly connected around the regulating flat plate 15.

[0041] In this embodiment, it is convenient for rotation and sealing when being blocked.

[0042] In a further preferred embodiment of the present invention, as Figures 1-5 shown, a detection assembly 10 is provided at the connection between the rotating rod 8 and the pump body 9. The detection assembly 10 includes protective covers 27 arranged at the upper and lower ends of the pump body 9 close to the rotating rod 8. One end of the front and back sides of the two protective covers 27 close to each other is respectively fixedly connected with a connecting plate 28. Every two of the four connecting plates 28 close to each other are detachably and fixedly connected. A sealing strip is installed inside the side of the two protective covers 27 close to each other. An arc-shaped groove 30 is respectively opened at one end of the side of the two protective covers 27 close to each other. The two arc-shaped grooves 30 are respectively in contact with the upper and lower ends of the rotating rod 8. Openings 29 are respectively opened on the other side of the two protective covers 27. Sealing blocks are respectively fixedly connected to the inner walls of the two openings 29. The two sealing blocks are respectively in contact with one side of the pump body 9 close to the connection with the rotating rod 8.

[0043] In this embodiment, it is convenient for sealing.

[0044] In a further preferred embodiment of the present invention, as Figures 1-5As shown, the detection component 10 further includes a water flow sensor 38 installed inside a protective cover 27 near the lower end, with the model number MW-WS-S0. An alarm is installed at the upper end of the protective cover 27.

[0045] In this embodiment, it is convenient for detection.

[0046] It should be noted that the model specification MW-WS-S0 of the water flow sensor 38 is not the only limitation, but is selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0047] The power supply and principle of the water flow sensor 38 are clear to those skilled in the art and will not be elaborated here.

[0048] In a further preferred embodiment of the present invention, as Figures 1-6 shown, the shock absorption component 7 includes shock absorption seats 31 fixedly connected to the four peripheries of the bottom of the base 1 respectively. Shock absorption blocks 32 are respectively slidably connected to the tops of the four shock absorption seats 31. Damper 33s are installed between the four shock absorption blocks 32 and the interiors of the four shock absorption seats 31 respectively. Buffer springs are sleeved on the four damper 33s.

[0049] In this embodiment, it is convenient for shock absorption.

[0050] In a further preferred embodiment of the present invention, as Figures 1-5 shown, on both the front and rear ends of the upper end of the support plate 2 near one side of the centrifugal pump motor 3, return-shaped frames 34 are respectively fixedly connected. The same fixed rod 35 is fixedly connected between the inner walls of the two return-shaped frames 34. Heat dissipation fans 36 are respectively detachably and fixedly connected to the two fixed rods 35.

[0051] In this embodiment, it is convenient to accelerate the air flow around the centrifugal pump motor 3, thereby improving the heat dissipation effect.

[0052] The electrical components mentioned in the text are all electrically connected to the controller and the power supply. The control mode of the present invention is controlled by the controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of the power supply also belongs to the common knowledge in this field. And the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be further explained.

[0053] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be carried out in other sequences 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 essential to the present invention.

[0054] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above-mentioned units may have other division methods in actual implementation. For example, 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 displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0055] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions, or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A flow self-regulating centrifugal pump, characterized in that: include: A base, a support plate is arranged at the upper end of the base, a shock absorbing assembly is arranged between the support plate and the base, and a centrifugal pump motor is arranged on the support plate; The output end of the centrifugal pump motor is fixedly connected with a rotating rod, the other side of the rotating rod is provided with a pump body, the extended end of the rotating rod penetrates into the pump body and is fixedly connected with a mounting plate, the other side of the mounting plate is detachably fixedly connected with an impeller, and one side of the pump body is provided with a water inlet assembly; The water inlet assembly includes an inlet pipe connected to one side of the pump body, the other side of the inlet pipe is connected to a filter box, a sealing door is installed at the front end of the filter box, the other side of the filter box is connected to a buffer tube, and the interior of the buffer tube is spiral.

2. A flow self-regulating centrifugal pump as claimed in claim 1, characterized in that: The water inlet assembly also includes a filter plate that is detachably fixedly connected to the inside of the filter box; The top of the filter box is connected with a mounting box, a sealing ring is installed at the connection between the mounting box and the filter box, and a through hole is opened on the sealing ring; An electric push rod is installed inside the installation box, and the telescopic end of the electric push rod passes through the through hole and is fixedly connected with a rubber scraper, and the rubber scraper is in contact with the surface of the filter plate.

3. A flow self-regulating centrifugal pump as claimed in claim 2, characterized in that: The support plate is fixedly connected to one side of the buffer tube and the filter box respectively, and the two buffer plates are in contact with the buffer tube and the bottom of the filter box respectively.

4. A flow self-regulating centrifugal pump as claimed in claim 1, characterized in that: The upper end of the pump body is provided with a water outlet regulating assembly, which includes a first water outlet pipe connected to the top of the pump body, the upper end of the first water outlet pipe is connected to a regulating box, and the other side of the regulating box is connected to a second water outlet pipe.

5. A flow self-regulating centrifugal pump as claimed in claim 4, characterized in that: The water outlet regulating component comprises a stabilizing plate installed on one side of the outer side of the regulating box, an regulating motor is installed on the upper end of the stabilizing plate, and the output end of the regulating motor penetrates into the regulating box and is fixedly connected with the regulating flat plate.

6. A flow self-regulating centrifugal pump as claimed in claim 5, characterized in that: The water outlet regulating component also includes the other side of the regulating plate being rotatably connected to the inner wall of the other side of the regulating box, and the four sides of the regulating plate are respectively fixedly connected with elastic strips.

7. A flow self-regulating centrifugal pump as claimed in claim 1, characterized in that: A detection assembly is provided at the connection between the rotating rod and the pump body, and the detection assembly includes protective covers arranged at the upper and lower ends of the pump body close to the rotating rod. The ends of the two protective covers on the front and rear sides close to each other are respectively fixedly connected with connecting plates, and four connecting plates, among which every two connecting plates close to each other are detachably fixedly connected, are provided with sealing strips inside the two protective covers on the sides close to each other, and arc grooves are respectively provided at the ends of one side of the two protective covers close to each other, and the two arc grooves are respectively in contact with the upper and lower ends of the rotating rod, and openings are respectively provided on the other sides of the two protective covers, and sealing blocks are respectively fixedly connected to the inner walls of the two openings, and the two sealing blocks are respectively in contact with the side of the pump body close to the connection with the rotating rod.

8. A flow self-regulating centrifugal pump as claimed in claim 7, characterized in that: The detection component also includes a water flow sensor installed inside the protective cover near the lower end, and an alarm is installed on the upper end of the protective cover.

9. A flow self-regulating centrifugal pump as claimed in claim 1, characterized in that: The shock absorbing assembly includes shock absorbing seats fixedly connected to the bottom of the base, the tops of the four shock absorbing seats are slidably connected with shock absorbing blocks, dampers are installed between the four shock absorbing blocks and the inside of the four shock absorbing seats, and buffer springs are sleeved on the four dampers.

10. A flow self-regulating centrifugal pump as claimed in claim 1, characterized in that: The front and rear ends of the upper end of the support plate close to the centrifugal pump motor are respectively fixedly connected with return frames, the same fixing rod is fixedly connected between the inner walls of the two return frames, and the two fixing rods are respectively detachably fixedly connected with cooling fans.

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