CN117231519B

CN117231519B - Centrifugal pump with flow stabilizer

Info

Publication number: CN117231519B
Application number: CN202311499403.0A
Authority: CN
Inventors: 刘先盛; 许文超; 管建荣; 王太录; 王殿远; 郑剑平; 韩佳朋; 安玉
Original assignee: Yantai Longgang Pump Industry Co ltd
Current assignee: Yantai Longgang Pump Industry Co ltd
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-01-16
Anticipated expiration: 2043-11-13
Also published as: CN117231519A

Abstract

The invention discloses a centrifugal pump with a flow stabilizer, which belongs to the technical field of centrifugal pumps and comprises a bottom plate, wherein a driving motor and a centrifugal pump body are fixedly arranged on the upper end face of the bottom plate, the centrifugal pump body is arranged on the left side of the driving motor and is in transmission connection with the driving motor, an input pipe is arranged on the left end face of the centrifugal pump body in a communicated mode, a shell is arranged on the left side of the input pipe, sealing covers are arranged at the left end and the right end of the shell, the sealing covers are fixedly connected with the shell through fixing pieces, a fixing mechanism is arranged between the sealing covers and the shell, and a transmission scraping mechanism, a filter plate cleaning mechanism and a flow stabilizing mechanism are sequentially arranged inside the shell from left to right. This scheme is through setting up transmission scraping mechanism, when utilizing centrifugal pump main part to suck rivers, the flow force of rivers is strikeed the paddle and is driven the pivot and rotate to make the scraper blade strike off the inner wall accumulative incrustation scale of shell, need not to shut down the dismantlement equipment and clear up, promoted the convenience of equipment relatively.

Description

Centrifugal pump with flow stabilizer

Technical Field

The invention relates to the technical field of centrifugal pumps, in particular to a centrifugal pump with a flow stabilizer.

Background

The high-speed centrifugal pump has the characteristics of excellent performance, high reliability and long operation life, can replace a multistage centrifugal pump, a reciprocating pump and the like to work in the fields of small flow and high lift, and is widely applied to the fields of petrochemical industry, aerospace and the like.

When the high-speed centrifugal pump is operated, the pressure at the inlet of the impeller is reduced due to the centrifugal force generated by the centrifugal impeller rotating at high speed, the formed pressure difference can promote part of water flow to flow backwards, and the backflow water flow drives the main flow to rotate to form backflow vortex. High-speed centrifugal pumps generally arrange inducers at the inlet flow passages of the impellers to improve cavitation resistance of the impellers, which lengthens the flow passages of the impellers and more easily forms reflux vortex phenomenon at the inlet of the inducers. Under the working condition of low flow and high lift, the inlet attack angle of the inducer blade is increased, water flow is difficult to directly enter the inducer, partial water flow can collide on the inducer inlet working surface, partial water flow is caused to flow back, and vortex is generated.

The backflow vortex phenomenon can directly cause the efficiency of the centrifugal pump to be reduced, the suction condition of the inducer is poor, cavitation resistance of the high-speed pump is reduced, pressure pulsation can be generated, and vibration and noise are further induced. In addition, when the centrifugal impeller rotating at a high speed drives liquid flow to enter the volute, certain impact can be caused on the wall surface of the volute, vortex with different sizes is formed on each section of the volute, at the moment, fluctuation of the water flow can be caused at the outlet diffusion section of the volute, the working efficiency of the water pump is reduced, vibration can be induced, and fatigue damage is caused to the high-speed centrifugal pump.

The Chinese patent with the publication number of CN115289073A discloses a flow stabilizer for a centrifugal pump and the centrifugal pump, wherein water flow is split after entering from a water inlet of the flow stabilizer, wherein part of liquid enters the outer edge of an inducer blade at the water inlet of an inducer through a first channel, and the pressure and the speed of the split water flow through the first channel are greater than those of a main flow because the split water flow is split, and the split water flow breaks up a backflow vortex at the outer edge of the inducer blade; as the reflux vortex is dispersed, the operation efficiency and cavitation resistance of the centrifugal pump are improved, and the vibration and noise of the centrifugal pump are reduced while the pressure pulsation is reduced.

The invention avoids fatigue damage to the centrifugal pump caused by water flow impact, but in the process of pumping a water source with poor water quality, the risk of being blocked by impurities exists, and particularly, in the process of pumping hot water in a bath room, thick layers of scale can be formed on the inner wall of the centrifugal pump in the process of pumping the hot water, and if the scale is not removed in time, the pumping efficiency of the centrifugal pump is influenced, so that the shell of the centrifugal pump made of metal materials is burnt out due to local overheating, and even a pipe explosion accident occurs.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention aims to provide a centrifugal pump with a flow stabilizing device, which can prevent scale from influencing the normal operation of equipment.

In order to solve the problems, the invention adopts the following technical scheme.

The utility model provides a centrifugal pump with current stabilizer, which comprises a base plate, driving motor and centrifugal pump body are fixed mounting to the up end of bottom plate, centrifugal pump body sets up in driving motor's left side to with driving motor transmission connection, centrifugal pump body's left end face intercommunication is equipped with the input tube, the left side of input tube is provided with the shell, the left end and the right-hand member of shell all are provided with the closing cap, pass through mounting fixed connection between closing cap and the shell, be provided with fixed establishment between closing cap and the shell, the inside of shell has set gradually transmission scraping mechanism, filter cleaning mechanism and current stabilizer from left to right, fixed establishment includes the toothed ring that sets up between closing cap and the shell, the left end face and the right-hand member outer edge department of toothed ring all fixed mounting have the sliding ring, the one end that closing cap and shell correspond the sliding ring all has the spout, sliding connection is in the inside of spout, the left end face of closing cap has seted up the through-hole, the left side of shell is provided with the closing cap, extend to the inside of shell through mounting fixed part fixed connection, be provided with fixed establishment between the pivot that is passed through to the inside of left side closing cap, the inside of shell is provided with the pivot, the inside of sliding plate is connected to the inside of rotating shaft, the inside of sliding plate is connected to the inside of shell is provided with, the fixed establishment between the pivot, left end and the inside of shell is connected with the fixed connection, the scraping plate is tightly attached to the inner wall of the shell.

Further, the fixing mechanism further comprises a fixing block fixedly arranged on the upper end of the outer surface of the shell, a transmission motor is fixedly arranged on the upper end of the fixing block, the transmission motor is a double-shaft motor, a first gear is fixedly arranged at the end parts of the left end output shaft and the right end output shaft of the transmission motor, and the first gear is meshed with the toothed ring for transmission.

Further, the transmission groove has been seted up to the left end face of ring gear, the limit groove has been seted up to the left end of closing cap correspondence transmission groove, the inside sliding connection of limit groove has the slide bar, the slide bar extends to the inside of transmission groove to be connected with the transmission groove transmission, the surface lower extreme fixed mounting of slide bar has the inserted bar, the slot has all been seted up to the surface of input tube and connecting pipe correspondence inserted bar.

Further, the transmission groove, the limit groove, the slide bar, the inserted bar and the slot are correspondingly provided with three groups and are in annular dispersion arrangement, and the fixing mechanism is correspondingly provided with two groups corresponding to two groups of gears, and is symmetrically arranged at two ends of the shell.

Further, the inside left end and the right-hand member of shell all fixed mounting have the closing plate, the closing plate has seted up the intercommunicating pore corresponding connecting pipe and input tube, the aperture of intercommunicating pore is less than connecting pipe and input tube, and corresponds connecting pipe and input tube fixed mounting at the outer terminal surface of closing plate has sealing rubber pad.

Further, the filter cleaning mechanism comprises a rotating rod which is rotationally connected with the left end of a supporting rod, a gear II is fixedly arranged at the left end of the rotating rod, an internal tooth is fixedly arranged at the right end of the sealing plate at the left side of the rotating rod, the gear II is meshed with the internal tooth, a cleaning plate is tightly attached to the left end face of the filter, and the right end of the rotating rod penetrates through the supporting rod and is fixedly connected with the cleaning plate.

Further, bracing piece, scraper blade, bull stick, gear two all correspond to be provided with three groups with the cleaning board to be annular dispersion setting, three groups gear two all is connected with the tooth meshing transmission of internal tooth, the right-hand member face fixed mounting of cleaning board has the cleaning brush, the discharge opening has been seted up to the surface lower extreme of shell, the discharge opening sets up between filter and left side closing plate, the inside joint of discharge opening has the shutoff piece.

Further, the steady flow mechanism comprises a sleeve fixedly mounted on the left end face of the right sealing plate, a transmission column is slidably connected in the sleeve, the left end of the transmission column is fixedly connected with the steady flow plate, a spring is arranged in the sleeve, the spring is fixedly mounted between the transmission column and the right sealing plate, and a plurality of groups of sleeves, springs and the transmission column are correspondingly arranged and are in annular dispersion arrangement.

Further, the left end face of the flow stabilizing plate is provided with a plurality of groups of flow stabilizing holes, and the flow stabilizing holes are formed in a semi-spiral mode and are distributed in an annular mode.

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the scheme, when the centrifugal pump main body is used for sucking water flow, the blade is impacted by the flowing force of the water flow to drive the rotating shaft to rotate, the scraping plate is used for scraping accumulated scale on the inner wall of the shell, shutdown for removing equipment is not needed for cleaning, meanwhile, the influence of scale on the temperature in the shell caused by accumulated scale on the inner wall of the shell is avoided, the heat transmission efficiency is different, the temperature difference of the part of the shell is large, and the occurrence of pipe explosion accidents caused by the large temperature difference of the part of the shell is relatively improved, so that the convenience and safety of the equipment are relatively improved;

(2) According to the scheme, the fixing mechanism is arranged, the first transmission motor is used for driving the gear to rotate, so that the toothed ring rotates, the toothed ring is matched with the limit groove on the sealing cover through the transmission groove formed in the left end face, so that the slide rod pushes the inserted rod to be inserted into the slot, the input pipe and the connecting pipe are quickly installed, a traditional complex manual installation mode is avoided, and the practicability of equipment is relatively improved;

(3) According to the scheme, the filter plate cleaning mechanism is arranged, the rotating shaft rotates to synchronously drive the rotating rod to rotate, the rotating rod synchronously rotates under the meshing transmission action of the second gear and the inner tooth, impurities filtered on the filter plate are cleaned, meanwhile, the filter plate impurities are cleaned by disassembling the plugging block, the cleaned impurities are discharged, the self-cleaning of equipment is realized, manual disassembly cleaning is not needed, and the functionality of the equipment is enhanced;

(4) This scheme is through setting up stationary flow mechanism, and rivers impact stationary flow board, and the impact force of rivers is further reduced to buffering stationary flow under the effect of spring, and after rivers pass through helical form stationary flow hole simultaneously, then can be scattered around the impact direction of rivers, avoids rivers to last impact a centrifugal pump body certain place, influences the life of equipment.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2A in accordance with the present invention;

FIG. 4 is a cross-sectional view of the housing of the present invention;

FIG. 5 is an enlarged schematic view of the invention at B in FIG. 4;

FIG. 6 is a cross-sectional view of the drive doctoring mechanism of the present invention;

FIG. 7 is an enlarged schematic view of FIG. 6 at C in accordance with the present invention;

FIG. 8 is a cross-sectional view of a filter plate cleaning mechanism of the present invention;

FIG. 9 is an enlarged schematic view of the invention at D in FIG. 8;

FIG. 10 is a cross-sectional view of a flow stabilizer of the present invention;

FIG. 11 is an enlarged schematic view of FIG. 10 at E in accordance with the present invention;

FIG. 12 is an enlarged schematic view of the invention at F in FIG. 10;

fig. 13 is an enlarged schematic view of fig. 10 at G in accordance with the present invention.

The reference numerals in the figures illustrate:

1. a bottom plate; 2. a driving motor; 3. a centrifugal pump body; 4. an input tube; 5. a housing; 6. a cover; 7. a fixing member; 8. a toothed ring; 9. a slip ring; 10. a chute; 11. a connecting pipe; 12. a drive motor; 13. a first gear; 14. a limit groove; 15. a transmission groove; 16. a sealing plate; 17. a slide bar; 18. a rod; 19. a slot; 20. a filter plate; 21. a steady flow plate; 22. a rotating shaft; 23. a paddle; 24. a support rod; 25. a scraper; 26. a rotating rod; 27. a second gear; 28. internal tooth teeth; 29. a cleaning plate; 30. a discharge port; 31. a block; 32. a sleeve; 33. a spring; 34. a through hole; 35. a fixed block; 36. a drive column; 37. and a stabilizing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.

Referring to fig. 1 to 13, a centrifugal pump with a flow stabilizer comprises a bottom plate 1, wherein a driving motor 2 and a centrifugal pump body 3 are fixedly arranged on the upper end surface of the bottom plate 1, the centrifugal pump body 3 is arranged on the left side of the driving motor 2 and is in transmission connection with the driving motor 2, an input pipe 4 is arranged on the left end surface of the centrifugal pump body 3 in a communicated manner, a shell 5 is arranged on the left side of the input pipe 4, a sealing cover 6 is arranged at the left end and the right end of the shell 5, the sealing cover 6 is fixedly connected with the shell 5 through a fixing piece 7, a fixing mechanism is arranged between the sealing cover 6 and the shell 5, a transmission scraping mechanism, a filter plate cleaning mechanism and a flow stabilizing mechanism are sequentially arranged inside the shell 5 from left to right, the fixing mechanism comprises a toothed ring 8 arranged between the sealing cover 6 and the shell 5, a sliding ring 9 is fixedly arranged at the outer edges of the left end surface and the right end surface of the toothed ring 8, the sliding chute 10 is arranged at one end of the sealing cover 6 corresponding to the sliding ring 9 of the shell 5, the sliding ring 9 is in sliding connection with the inside of the sliding chute 10, the through hole 34 is arranged at the left end face of the sealing cover 6, the connecting pipe 11 is arranged at the left side of the shell 5, the connecting pipe 11 extends to the inside of the shell 5 through the through hole 34 on the left sealing cover 6, the input pipe 4 extends to the inside of the shell 5 through the through hole 34 on the right sealing cover 6, the input pipe 4 is in quick sealing communication and disassembly with the connecting pipe 11 by the fixing mechanism, the manual disassembly and installation are not needed, the residual impurities such as scale and the like on the inner wall of the shell 5 are scraped by the transmission scraping mechanism by utilizing the impact force of water flow, the filtering device is cleaned by the filter plate cleaning mechanism by utilizing the impact force of the water flow, the impact water flow is stabilized by the steady flow mechanism, the water flow can be stabilized through the centrifugal pump body 3, thereby reducing the impact force of the water pressure on the centrifugal pump body 3;

the fixed establishment still includes the fixed block 35 of surface upper end fixed mounting of shell 5, fixed block's 35 upper end fixed mounting has drive motor 12, drive motor 12 is biax motor, drive motor 12's left end output shaft and right-hand member output shaft's tip all fixed mounting have gear one 13, gear one 13 and ring gear 8 meshing transmission, the transmission groove 15 has been seted up to ring gear 8's left end face, spacing groove 14 has been seted up to the left end correspondence transmission groove 15 of closing cap 6, the inside sliding connection of spacing groove 14 has slide bar 17, slide bar 17 extends to the inside of transmission groove 15, and be connected with the transmission groove 15 transmission, slide bar 17's surface lower extreme fixed mounting has inserted bar 18, input tube 4 and connecting tube 11's surface all have been seted up slot 19 corresponding to inserted bar 18, drive groove 15, spacing groove 14, slide bar 17, inserted bar 18 and slot 19 all correspond to set up three group, and be annular dispersion setting, fixed establishment corresponds two sets of gears one 13 and is provided with two sets of, and be the symmetry setting at shell 5's both ends, shell 5's inside left end and right-hand member correspondence sealing plate 16 have sealing plate 16, sealing plate 16 has fixed mounting sealing plate 16 to the inside of sealing plate 16, sealing plate 16 corresponds to connecting tube 11 and input tube 4 and the inside of shell 20, sealing plate 20 has the sealing plate 20, sealing plate 20 is fixed connection hole 21 is equipped with at the inside sealing plate 20, sealing plate 20 is equipped with sealing plate 20 at the inside sealing plate 20, and sealing plate 20 is fixed connection hole 20, and is equipped with sealing plate 20.

Through adopting above-mentioned technical scheme, in order to realize the quick intercommunication between centrifugal pump body 3 and the external connection pipe 11, this scheme is through setting up fixed establishment, utilize driving motor 12 drive gear one 13 to rotate, make ring gear 8 rotate, the limit groove 14 on the drive groove 15 cooperation closing cap 6 that the ring gear 8 was offered on through the left end face makes slide bar 17 promote the inserted bar 18 and inserts in the middle of slot 19, realize the swift installation of input tube 4 and connecting pipe 11, avoided traditional complicated manual installation mode, the practicality of equipment has been promoted relatively, and is specific: firstly, the input pipe 4 and the connecting pipe 11 are respectively inserted into the shell 5 through the sealing covers 6 at the two ends of the shell 5, then the transmission motor 12 is started, the left end output shaft and the right end output shaft of the transmission motor 12 drive a group of gears I13 to rotate, the gears I13 and the toothed ring 8 are meshed and driven, the toothed ring 8 rotates, the transmission groove 15 arranged on the end face enables the sliding rod 17 in sliding connection with the transmission groove 15 to displace, the sliding rod 17 is synchronously and slidingly connected in the limiting groove 14, the sliding rod 17 is matched with the limiting groove 14 and the transmission groove 15, the sliding rod 17 pushes the inserting rod 18 to displace towards the inserting groove 19 until the inserting rod 18 is inserted into the inserting groove 19, the input pipe 4 and the connecting pipe 11 are synchronously fixedly communicated with the shell 5, after the installation is completed, the driving motor 2 can be started to enable the centrifugal pump body 3 to conduct pumping operation, the quick fixed installation of the water pump and the external water pipes is realized, the convenient disassembly and maintenance treatment are also enabled, the water pipes with different external pipe diameters can be fixed, the adaptation range of the equipment is increased, and the water pump with different water pipes with different external pipe diameters are not required to be replaced.

As shown in fig. 5, fig. 7, fig. 9 and fig. 11, the transmission scraping mechanism comprises a rotating shaft 22 rotatably connected between a filter plate 20 and a steady flow plate 21, a paddle 23 is fixedly arranged on the outer surface of the rotating shaft 22, a supporting rod 24 is arranged on the left side of the filter plate 20, the left end of the rotating shaft 22 extends to the left side of the filter plate 20 and is fixedly connected with the supporting rod 24, a scraping plate 25 is fixedly arranged at the other end of the supporting rod 24, the scraping plate 25 is tightly attached to the inner wall of a shell 5, the filter plate cleaning mechanism comprises a rotating rod 26 rotatably connected with the left end of the supporting rod 24, a gear two 27 is fixedly arranged at the left end of the rotating rod 26, an inner tooth 28 is fixedly arranged at the right end of a left side sealing plate 16, a cleaning plate 29 is tightly attached to the left end surface of the filter plate 20, the right end of the rotating rod 26 penetrates through the supporting rod 24 and is fixedly connected with the cleaning plate 29, the supporting rod 24, the scraping plate 25, the rotating rod 26, the gear two 27 and the cleaning plate 29 are correspondingly provided with three groups and are in annular dispersion arrangement, the three groups of gears two 27 are respectively meshed with the inner tooth 28, a cleaning brush is fixedly arranged on the right end surface of the cleaning plate 29, a discharge opening 30 is arranged at the lower end of the shell 5, a discharge opening 30 is arranged between the left side sealing plate 30 and the inner tooth 28 and the sealing plate 30 is fixedly connected with the discharge opening 30.

Through adopting above-mentioned technical scheme, at the in-process of in-service use, at the in-process of carrying out the suction to the relatively poor water source of quality of water, there is the risk of being blockked up by impurity, especially, to, in the in-process of carrying out the suction pumping to the hot water in the bath room, hot water can form thick one deck incrustation scale at the inner wall of centrifugal pump at the in-process of suction, these incrustation scale if not in time clear away, then can cause the influence to the suction efficiency of centrifugal pump, make metallic material's centrifugal pump shell 5 burn out because of local overheat easily, take place the pipe explosion accident even, and is specific: this scheme is through setting up transmission scraping mechanism, when utilizing centrifugal pump main part to suck rivers, the mobile force of rivers strikes paddle 23 and drives pivot 22 and rotate, and make scraper blade 25 strike off the inner wall of shell 5 piled up incrustation scale, need not to shut down the dismantlement equipment and clear up, avoided shell 5 inner wall incrustation scale to pile up and cause the temperature to receive the incrustation scale to influence in the shell, the heat transmission efficiency is different, the 5 partial difference in temperature of shell that cause is great, the pipe explosion accident that causes takes place, convenience and the security of equipment have been promoted relatively, secondly this scheme is through setting up filter cleaning mechanism, utilize pivot 22 to rotate synchronous drive bull stick 26 and rotate, bull stick 26 then utilize gear two 27 and the meshing transmission effect of internal tooth 28 to rotate in step, clean the processing to impurity that filters down on the filter 20, the accessible is dismantled the shutoff piece 31 simultaneously, the impurity that discharges clean down, filter 20 impurity is clean has realized the self-cleaning of equipment, need not artifical manual dismantlement cleaning processing, the self-adaptation of equipment has been strengthened, the amount of labour of workman is alleviateed, only need to examine and repair regularly can, it is specific. Firstly, after the filter plate 20 is subjected to filtering treatment, the paddle 23 is fixedly arranged on the outer surface of the rotating shaft 22, the paddle 23 can simultaneously play a role in bypassing the impacted water flow, impact force of the water flow is slowed down, continuous impact equipment of the water flow is avoided, service life of equipment is reduced, the washing paddle 23 enables the rotating shaft 22 to rotate, the rotating shaft 22 rotates to drive the supporting rod 24 fixedly arranged at the left end of the rotating shaft 22 to rotate, the supporting rod 24 rotates to drive the scraper 25 at the end part to rotate, the scraper 25 can scrape the inner wall of the shell 5, scale accumulated on the inner wall of the shell 5 for a long time is scraped, the supporting rod 24 synchronously carries the rotating rod 26, the gear two 27 and the cleaning plate 29, the gear two 27 and the inner teeth 28 are meshed and transmitted, so that the rotating rod 26 carries the cleaning plate 29 and rotates simultaneously, impurities filtered off from the outer surface of the filter plate 20 are cleaned, the scraped scale can remain in the shell 5, when the impurities are too much, the sealing block 31 can be manually removed, the discharging port 30 is opened, and the inside the shell can be cleaned, and the traditional scale can be removed from the equipment rapidly, and the equipment can be conveniently cleaned.

As shown in fig. 12, the flow stabilizing mechanism includes a sleeve 32 fixedly mounted on the left end face of the right sealing plate 16, a driving column 36 is slidably connected in the sleeve 32, the left end of the driving column 36 is fixedly connected with the flow stabilizing plate 21, a spring 33 is provided in the sleeve 32, the spring 33 is fixedly mounted between the driving column 36 and the right sealing plate 16, multiple groups of the sleeve 32, the spring 33 and the driving column 36 are correspondingly provided and are in annular dispersion arrangement, multiple groups of flow stabilizing holes 37 are provided on the left end face of the flow stabilizing plate 21, the flow stabilizing holes 37 are in semi-spiral arrangement and are provided with multiple groups and are in annular dispersion arrangement.

Through adopting above-mentioned technical scheme, this scheme is through setting up current stabilizer mechanism, and rivers impact current stabilizer 21, and the effect of spring 33 is down buffering stationary flow, and after rivers pass through helical form stationary flow hole 37 simultaneously, further reduce the impact force of rivers, avoid rivers to last impact centrifugal pump body 3, influence the life of equipment, and is specific: the rivers flow through behind the filter 20 to pivot 22 surface fixed mounting paddle 23 erode, and paddle 23 also can play the effect of detouring to the rivers of striking simultaneously, slow down the impact dynamics of rivers, avoid rivers to last the equipment of striking, reduce the life of equipment, can strike stabilizer plate 21 afterwards, stabilizer plate 21 then can pass through drive post 36 with the power transmission to spring 33, spring 33 carries out the secondary to the impact force of rivers and offsets, rivers can flow out through helical stationary flow hole 37 simultaneously, helical stationary flow hole 37 then can carry out the treatment of scattering to the impact direction of rivers, make rivers strike everywhere the inner wall of centrifugal pump body 3 instead of singly striking, promote the life of centrifugal pump body 3.

Working principle: firstly, an input pipe 4 and a connecting pipe 11 are respectively inserted into the shell 5 through holes 34 on sealing covers 6 at two ends of the shell 5, then a transmission motor 12 is started, a left end output shaft and a right end output shaft of the transmission motor 12 drive a group of gears I13 to rotate, the gears I13 and a toothed ring 8 are meshed and driven, the toothed ring 8 rotates, a transmission groove 15 arranged on the end face enables a slide bar 17 in sliding connection with the transmission groove 15 to displace, the slide bar 17 is synchronously and slidingly connected with the inside of a limit groove 14, the slide bar 17 is matched with the limit groove 14 and the transmission groove 15, the slide bar 17 pushes a plunger 18 to displace towards a slot 19 until the plunger 18 is inserted into the slot 19, the input pipe 4 and the connecting pipe 11 are synchronously and fixedly communicated with the shell 5, after installation is completed, the driving motor 2 can be started to enable the centrifugal pump body 3 to pump water, the connecting pipe 11 is communicated with an external water source, the external water source enters the shell 5 through the connecting pipe 11, firstly, after the filtering treatment is carried out on the filter plate 20, the paddle 23 fixedly arranged on the outer surface of the rotating shaft 22 is flushed, the rotating shaft 22 rotates to drive the supporting rod 24 fixedly arranged at the left end of the rotating shaft 22 to rotate, the supporting rod 24 rotates to drive the scraper 25 at the end part to rotate, the scraper 25 scrapes the inner wall of the shell 5, the inner wall of the shell 5 is scraped due to long-time accumulated scale, the supporting rod 24 synchronously carries the rotating rod 26, the gear II 27 rotates with the cleaning plate 29, the gear II is meshed with the internal tooth 28 for transmission, so that the rotating rod 26 carries the cleaning plate 29 to revolve and simultaneously rotates, and impurities filtered by the outer surface of the filter plate 20 are cleaned, when the impurities are excessive, the plugging block 31 can be removed, the cleaned impurities can be discharged out of the device, secondly, the flow of water flows through the filter plate 20 and then impacts the flow stabilizing plate 21, the flow stabilizing plate 21 transmits force to the spring 33 through the transmission column 36 for force unloading treatment, and the water flows out of the spiral flow stabilizing hole 37 and finally enters the centrifugal pump body 3.

The above is only a preferred embodiment of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.

Claims

1. The utility model provides a centrifugal pump with current stabilizer, includes bottom plate (1), the up end fixed mounting of bottom plate (1) has driving motor (2) and centrifugal pump body (3), centrifugal pump body (3) set up in the left side of driving motor (2) to be connected with driving motor (2) transmission, the left end face intercommunication of centrifugal pump body (3) is equipped with input tube (4), its characterized in that:

the device is characterized in that a shell (5) is arranged on the left side of the input pipe (4), sealing covers (6) are arranged at the left end and the right end of the shell (5), the sealing covers (6) are fixedly connected with the shell (5) through fixing pieces (7), a fixing mechanism is arranged between the sealing covers (6) and the shell (5), and a transmission scraping mechanism, a filter plate cleaning mechanism and a steady flow mechanism are sequentially arranged inside the shell (5) from left to right;

the fixing mechanism comprises a toothed ring (8) arranged between a sealing cover (6) and a shell (5), slip rings (9) are fixedly arranged at the outer edges of the left end face and the right end face of the toothed ring (8), sliding grooves (10) are formed in the sealing cover (6) and the shell (5) at one ends of the slip rings (9) corresponding to the sliding rings, the sliding rings (9) are slidably connected in the sliding grooves (10), through holes (34) are formed in the left end face of the sealing cover (6), connecting pipes (11) are arranged on the left side of the shell (5), the connecting pipes (11) extend to the inside of the shell (5) through the through holes (34) in the left side sealing cover (6), the input pipes (4) extend to the inside of the shell (5) through the through holes (34) in the right side sealing cover (6), filter plates (20) are fixedly arranged on the left side of the inside of the shell (5), and the right side of the filter plates (20) are provided with flow stabilizing plates (21) which are slidably connected in the inside of the shell (5).

The transmission scraping mechanism comprises a rotating shaft (22) which is rotationally connected between a filter plate (20) and a steady flow plate (21), a paddle (23) is fixedly arranged on the outer surface of the rotating shaft (22), a supporting rod (24) is arranged on the left side of the filter plate (20), the left end of the rotating shaft (22) extends to the left side of the filter plate (20) and is fixedly connected with the supporting rod (24), a scraping plate (25) is fixedly arranged at the other end of the supporting rod (24), and the scraping plate (25) is tightly attached to the inner wall of the shell (5);

the fixing mechanism further comprises a fixing block (35) fixedly arranged at the upper end of the outer surface of the shell (5), a transmission motor (12) is fixedly arranged at the upper end of the fixing block (35), the transmission motor (12) is a double-shaft motor, a first gear (13) is fixedly arranged at the end parts of the left end output shaft and the right end output shaft of the transmission motor (12), and the first gear (13) is meshed with the toothed ring (8) for transmission;

the left end face of the toothed ring (8) is provided with a transmission groove (15), the left end of the sealing cover (6) is provided with a limit groove (14) corresponding to the transmission groove (15), the inside of the limit groove (14) is connected with a sliding rod (17) in a sliding mode, the sliding rod (17) extends to the inside of the transmission groove (15) and is in transmission connection with the transmission groove (15), the lower end of the outer surface of the sliding rod (17) is fixedly provided with an inserting rod (18), and the outer surfaces of the input pipe (4) and the connecting pipe (11) are provided with slots (19) corresponding to the inserting rod (18);

the transmission groove (15), the limit groove (14), the slide bar (17), the inserted link (18) and the slot (19) are correspondingly arranged in three groups and are distributed in an annular shape;

the sealing device is characterized in that sealing plates (16) are fixedly arranged at the left end and the right end of the inside of the shell (5), communication holes (34) are formed in the sealing plates (16) corresponding to the connecting pipes (11) and the input pipes (4), the aperture of the communication holes (34) is smaller than that of the connecting pipes (11) and the input pipes (4), and sealing rubber pads are fixedly arranged on the outer end faces of the sealing plates (16) corresponding to the connecting pipes (11) and the input pipes (4);

the first gear (13) is driven by the transmission motor (12) to rotate, so that the toothed ring (8) rotates, the toothed ring (8) is matched with the limit groove (14) on the sealing cover (6) through the transmission groove (15) formed in the left end face, so that the sliding rod (17) pushes the inserting rod (18) to be inserted into the slot (19), and the input pipe (4) and the connecting pipe (11) are quickly installed;

the input tube (4) and the connecting tube (11) are respectively inserted into the shell (5) through the sealing covers (6) at the two ends of the shell (5), then the transmission motor (12) is started, the left end output shaft and the right end output shaft of the transmission motor (12) drive a group of gears I (13) to rotate, the gears I (13) and the toothed ring (8) are meshed for transmission, the toothed ring (8) rotates, the sliding rod (17) in sliding connection with the inside of the transmission groove (15) is enabled to displace through the transmission groove (15) formed in the end face, the sliding rod (17) is synchronously and slidingly connected in the limit groove (14), the sliding rod (17) is enabled to push the inserting rod (18) to displace towards the inserting groove (19) under the mutual cooperation of the limit groove (14) and the transmission groove (15), and the input tube (4) and the connecting tube (11) are synchronously fixedly communicated with the shell (5) until the inserting rod (18) is inserted into the inside of the inserting groove (19).

2. A centrifugal pump with a flow stabilizer as claimed in claim 1, wherein: the filter cleaning mechanism comprises a rotary rod (26) rotatably connected with the left end of a supporting rod (24), a gear II (27) is fixedly arranged at the left end of the rotary rod (26), an inner tooth (28) is fixedly arranged at the right end of a sealing plate (16) on the left side, the gear II (27) is meshed with the inner tooth (28) mutually, a cleaning plate (29) is tightly attached to the left end face of the filter plate (20), and the right end of the rotary rod (26) penetrates through the supporting rod (24) and is fixedly connected with the cleaning plate (29).

3. A centrifugal pump with a flow stabilizer as claimed in claim 2, characterized in that: the cleaning device comprises a supporting rod (24), a scraping plate (25), a rotating rod (26), a gear II (27) and a cleaning plate (29), wherein three groups of the supporting rod, the scraping plate, the rotating rod (26), the gear II (27) and the cleaning plate (29) are correspondingly arranged and are in annular dispersion arrangement, the gears II (27) are in meshed transmission connection with an inner tooth (28), a cleaning brush is fixedly arranged on the right end face of the cleaning plate (29), a discharging opening (30) is formed in the lower end of the outer surface of a shell (5), the discharging opening (30) is arranged between a filter plate (20) and a left sealing plate (16), and a blocking block (31) is clamped inside the discharging opening (30).

4. A centrifugal pump with a flow stabilizer as claimed in claim 3, characterized in that: the flow stabilizing mechanism comprises a sleeve (32) fixedly mounted on the left end face of a right sealing plate (16), a transmission column (36) is slidably connected inside the sleeve (32), the left end of the transmission column (36) is fixedly connected with a flow stabilizing plate (21), a spring (33) is arranged inside the sleeve (32), the spring (33) is fixedly mounted between the transmission column (36) and the right sealing plate (16), and a plurality of groups of the sleeve (32), the spring (33) and the transmission column (36) are correspondingly arranged and are in annular dispersion arrangement.

5. A centrifugal pump with a flow stabilizer as claimed in claim 4, wherein: the flow stabilizing plate is characterized in that a plurality of groups of flow stabilizing holes (37) are formed in the left end face of the flow stabilizing plate (21), the flow stabilizing holes (37) are formed in a semi-spiral mode, and a plurality of groups of flow stabilizing holes are formed in an annular dispersing mode.