CN117738939B - Single-stage end suction centrifugal pump capable of reducing efficiency loss - Google Patents
Single-stage end suction centrifugal pump capable of reducing efficiency loss Download PDFInfo
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- CN117738939B CN117738939B CN202410185770.1A CN202410185770A CN117738939B CN 117738939 B CN117738939 B CN 117738939B CN 202410185770 A CN202410185770 A CN 202410185770A CN 117738939 B CN117738939 B CN 117738939B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 265
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 27
- 230000000903 blocking effect Effects 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 13
- 230000002349 favourable effect Effects 0.000 description 8
- 238000007667 floating Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The invention relates to the technical field of liquid pumps, in particular to a single-stage end suction centrifugal pump capable of reducing efficiency loss, which comprises a mounting base, wherein the top of the mounting base is fixedly connected with a fixed block, one side of the fixed block is fixedly provided with a pump shell, the axle center of one side of the pump shell is fixedly communicated with a water inlet pipe, the top of the pump shell is fixedly communicated with a water outlet pipe, and the top of the mounting base is fixedly connected with a connecting ring; the invention can utilize the water source stored in the water tank to irrigate the inside of the pump shell, improves the operation efficiency of the centrifugal pump, reduces the influence of water source collection on the shape and smoothness of the pump shell by collecting the water source on the drain pipe, effectively reduces the loss of centrifugal efficiency of the centrifugal pump while guaranteeing the water source collection, and is beneficial to guaranteeing the pumping efficiency of the centrifugal pump.
Description
Technical Field
The invention relates to the technical field of liquid pumps, in particular to a single-stage end suction centrifugal pump capable of reducing efficiency loss.
Background
The centrifugal pump is operated by utilizing the rotation of the impeller to make water perform centrifugal motion; the Chinese patent with publication number CN112324668B discloses a self-water storage type centrifugal pump, two connecting pipes are fixedly communicated on the surface of a volute pump shell of the centrifugal pump, and partial water discharged by the centrifugal force generated during the operation of the centrifugal pump enters the connecting pipes and is stored by utilizing a box body, so that the water filling preparation work before the next operation is convenient, the integrity and the smoothness of the inner wall of the volute pump shell of the centrifugal pump greatly influence the centrifugal water discharging efficiency of the centrifugal pump in the operation process of the centrifugal pump, and the centrifugal efficiency of the centrifugal pump is reduced by fixing a communicating pipeline on the surface of the volute pump shell, so that the water discharging effect of the centrifugal pump is influenced.
Disclosure of Invention
The invention aims to solve the defects in the technical scheme, and provides a single-stage end suction centrifugal pump capable of reducing efficiency loss.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a reducible efficiency loss's single-stage end suction centrifugal pump, includes the installation base, the top fixedly connected with fixed block of installation base, one side fixed block has the pump case, the axle center department of pump case one side is fixed intercommunication has the inlet tube, the top fixedly communicates of pump case has the drain pipe;
The top of the mounting base is fixedly connected with a connecting ring, the inside of the connecting ring is rotationally connected with a pump shaft, one end of the pump shaft penetrates through the fixed block and the pump shell and extends to the inside of the pump shell, and then is fixedly connected with a centrifugal impeller disc, the mounting base is fixedly provided with a motor, and an output shaft of the motor is fixedly connected with the pump shaft;
the top of the fixed block is fixedly connected with a water tank, an annular shell is fixedly arranged above the water drain pipe, a first connecting pipe is fixedly communicated between the annular shell and the top of the water tank, a second connecting pipe is fixedly communicated between the water drain pipe and the lower part of one side of the water tank, a one-way valve is fixedly arranged on the second connecting pipe, a water source collecting mechanism and an automatic stopping mechanism are connected inside the annular shell, and a water filling plugging mechanism is connected on the water tank; during operation, in the prior art, two connecting pipes are fixedly communicated with the surface of a volute pump shell of a centrifugal pump, and partial drainage enters the connecting pipes by utilizing centrifugal force generated during operation of the centrifugal pump and is stored by utilizing a box body, so that water filling preparation work before next operation is convenient, during operation of the centrifugal pump, the integrity and smoothness of the inner wall of the volute pump shell of the centrifugal pump greatly influence the centrifugal drainage efficiency of the centrifugal pump, and through fixedly connecting pipelines on the surface of the volute pump shell, the centrifugal efficiency of the centrifugal pump is reduced, and the drainage effect of the centrifugal pump is influenced; the technical scheme can solve the problems, and the specific working mode is as follows: the water pump is characterized in that one end of the water inlet pipe is connected with the pipeline, one end of the pipeline is placed in a water body needing to be pumped, then, the plugging effect of the water filling plugging mechanism on the communicating part of the water tank and the second connecting pipe is relieved, the water source stored in the water tank enters the inside of the water outlet pipe along the second connecting pipe, and enters the inside of the pump shell along the water outlet pipe until the pump shell is full of water, then, the motor is started, the output shaft of the motor drives the pump shaft to rotate in the connecting ring, and drives the centrifugal impeller disc to rotate in the inside of the pump shell, the water source in the pump shell is enabled to move upwards along the communicating part of the pump shell and the water outlet pipe through the centrifugal force generated by rotation of the centrifugal impeller disc, and is discharged along one end of the water outlet pipe, meanwhile, the water source collecting mechanism collects part of the water source in the water outlet pipe along the water outlet pipe when the water outlet pipe is discharged upwards, and conveys the water source to the inside of the water tank, and after the water source in the water tank reaches a certain height, the water source inside of the water tank stops conveying to the inside of the water tank through the effect of the automatic stopping mechanism, water source can be used for carrying out water filling in the inside of the water tank, the pump, the centrifugal pump can be improved, the operation efficiency of the centrifugal pump is guaranteed, the water source is collected by the centrifugal pump efficiency, and the water pump efficiency is reduced, and the water source is guaranteed, and the water pump efficiency is guaranteed.
Preferably, the water source collecting mechanism comprises a plurality of strip-shaped grooves, the plurality of strip-shaped grooves are formed in a circumferential array on the side face of the drain pipe, the strip-shaped grooves are all communicated with the annular shell, the inside of each strip-shaped groove is rotationally connected with a baffle strip, a guide strip is fixedly connected below one side, close to the inner wall of the drain pipe, of each baffle strip, and the guide strips are in contact with the inner wall of the drain pipe; when the centrifugal impeller disc rotates in the pump shell and the water source in the pump shell is discharged along the drain pipe through the centrifugal force generated by rotation of the centrifugal impeller disc, impact force generated by movement of the water source in the drain pipe acts on the guide strip, and the guide strip movable stop strip is overturned upwards along the rotating connection part through the impact force, so that the strip groove is opened under the impact action of water flow, part of the water source enters the annular shell along the strip groove, enters the first connecting pipe along the annular shell and enters the water tank along the first connecting pipe.
Preferably, the automatic stopping mechanism comprises a propping ring and a plurality of L-shaped limiting strips, the L-shaped limiting strips are respectively and fixedly connected to one sides of the baffle strips and are positioned in the annular shell, one end of each L-shaped limiting strip is fixedly connected with an inclined strip, the propping ring is sleeved on the drain pipe and positioned in the annular shell, two connecting plates are fixedly connected to the side face of each propping ring, round pins are fixedly connected to the bottoms of the connecting plates, two round pins penetrate through the annular shell and extend to the lower part of the annular shell, and then are fixedly connected with a fixing frame, a first connecting rod is fixedly connected to the fixing frame, one end of each first connecting rod is fixedly connected with a linkage strip, one end of each linkage strip is fixedly connected with a second connecting rod, and one end of each second connecting rod penetrates through the water tank and extends to the inner part of the water tank, and then is fixedly connected with a floating block; during operation, when the blend stop upwards overturns along rotating the junction, thereby make the strip type groove open under the rivers impact, L type spacing along with the synchronous upset of corresponding blend stop, and drive the slope strip and remove, one side of slope strip supports on the surface of support ring, thereby restrict the flip angle of blend stop, the inside water source of water tank increases gradually, after the surface of water highly rises to a certain extent and contacts with the kicking block, the kicking block rises along with the surface of water highly under the buoyancy effect, drive the second connecting rod and upwards move, the second connecting rod drives the linkage strip and rises, the linkage strip drives first connecting rod and mount and rises, the round pin at mount top upwards moves along the slip grafting department of annular casing, thereby make the support ring upwards move in annular casing, when support the ring removes the inside of filling L type spacing along the slope strip, the blend stop returns initial position along rotating the junction, thereby it is inside to block up the strip type groove again, make the inside water source of drain pipe unable continue to get into annular casing, thereby stop water automatically, and through the inside influence of baffle strip type groove upset drain pipe to the inside, the inside drain efficiency of drain is guaranteed.
Preferably, the water filling and plugging mechanism comprises a movable frame, the movable frame is arranged on one side of the water tank, a plugging pin is fixedly connected to the movable frame, one end of the plugging pin penetrates through the water tank and extends to the inside of the water tank, a sealing piston is fixedly connected to the sealing piston, the sealing piston is sealed in the second connecting pipe in a sliding manner, two limiting pins are inserted into the movable frame in a sliding manner, the limiting pins are fixedly connected to the water tank, springs are sleeved on the limiting pins, two ends of each spring are fixedly connected to the movable frame and one end of the corresponding limiting pin respectively, and a pull ring is fixedly connected to the movable frame; during operation, the sealing piston at one end of the plugging pin is used for carrying out sliding sealing on the communicating part of the second connecting pipe and the water tank, so that the water source in the water tank is prevented from running off, when the water source stored in the water tank is required to be filled into the pump shell, the pull ring is pulled, the pull ring drives the movable frame to move along the sliding plugging part of the limiting pin and compress the spring to deform, the movable frame drives the plugging pin to move, the plugging pin drives the sealing piston to separate from the second connecting pipe, the plugging of the communicating part of the second connecting pipe and the water tank is relieved, the water source in the water tank enters the pump shell along the second connecting pipe, the pull ring is loosened when the water filling is finished, the plugging pin drives the sealing piston to move towards the second connecting pipe under the elastic action of the spring, so that the communicating part of the second connecting pipe and the water tank is plugged again, and the water storage is convenient for the water tank to store again.
Preferably, a fixed rod is fixedly connected to one side of the movable frame, a movable rod is rotatably connected to one side of the water tank, one end of the fixed rod abuts against the side face of the movable rod, a ratchet wheel is fixedly connected to the surface of the pump shaft, a rotating ring is rotatably connected to the surface of the ratchet wheel, two elastic abutting pieces are fixedly connected to the inner wall of the rotating ring in a circumferential array, the elastic abutting pieces are all clamped with the ratchet wheel, an arc-shaped poking piece is fixedly connected to the surface of the rotating ring, and one end of the movable rod is located above the arc-shaped poking piece; when the movable frame is driven by the pull ring to move to one side so as to release the blocking at the communication position of the second connecting pipe and the water tank, the fixed rod moves synchronously along with the movable frame, so that the movable rod is positioned above the position between the fixed rod and the water tank, the movable rod is rotated downwards along the rotating connection position so as to be positioned between the fixed rod and the water tank, the movable frame is blocked from returning to the initial position, meanwhile, one end of the movable rod is positioned at the top of the rotating ring along with the downward overturning, after a water source in the water tank is filled into the pump shell, the motor is started, centrifugal pumping is carried out under the rotating action of the centrifugal impeller disc driven by the pump shaft, the ratchet wheel synchronously rotates along with the pump shaft, the rotating ring is driven to synchronously rotate under the clamping action of the ratchet wheel and the elastic abutting piece, the rotating ring drives the arc-shaped shifting piece to rotate, and the movable rod is extruded through the arc-shaped shifting piece in the rotating process, the movable rod is returned to the initial position, so that the blocking effect of the movable rod on the fixed rod is relieved, the movable frame returns to the initial position under the elastic effect of the spring, the sealing piston is driven to plug the communication position of the second connecting pipe and the water tank, when the centrifugal pump is used for pouring water and pumping water, the communication position of the water tank and the second connecting pipe is synchronously plugged, so that the water tank is normally stored, when the movable rod rotates downwards along the rotating connection position and the movable rod is positioned between the fixed rod and the water tank, one end of the movable rod moves downwards and is close to the surface of the rotating ring, when the arc-shaped pulling piece on the rotating ring is just positioned above the movable rod, the movable rod is used for extruding the arc-shaped pulling piece, so that the rotating ring rotates relatively under the unidirectional clamping effect of the ratchet wheel and the elastic supporting piece, and the arc-shaped pulling piece rotates to be separated from the lower part of the movable rod, the arc-shaped poking piece is prevented from propping against the movable rod, so that the movable rod cannot be turned down.
Preferably, one end of the water inlet pipe and one end of the water outlet pipe are fixedly connected with a flange plate, and a plurality of connecting holes are fixedly connected to the flange plate in a circumferential array; during operation, through the one end fixed flange dish at inlet tube and drain pipe, be convenient for connect extension pipeline on inlet tube and drain pipe to carry out bolted connection through the connecting hole, thereby be favorable to the pumping position and the drainage position of centrifugal pump can be close to appointed region.
Preferably, a fixed shaft is fixedly connected to the shaft center position on one side of the centrifugal impeller disc, a spiral blade is connected to the fixed shaft, and the fixed shaft and the spiral blade are both positioned in the water inlet pipe; when the centrifugal impeller plate rotates along with the pump shaft, the centrifugal impeller plate drives the fixed shaft to synchronously rotate, the fixed shaft drives the spiral blades to rotate in the water inlet pipe, and a water source enters the pump shell along the water inlet pipe under the spiral guiding action of the spiral blades, so that the pumping efficiency of the centrifugal pump is improved.
Compared with the prior art, the invention has the following beneficial effects:
1. When the inside water source of pump case upwards discharges along the drain pipe, the inside partial water source of drain pipe is collected to water source collection mechanism is collected to the inside storage of water tank, and after the inside water source of water tank reaches a take the altitude, stop the transport of water source to the inside of water tank through the effect of automatic stop mechanism, when being favorable to drawing water next time, can utilize the inside water source of storing of water tank to the inside water filling of pump case, improve centrifugal pump's operating efficiency, and collect the water source through collecting the water source on the drain pipe, reduce the influence of water source collection to pump case shape and smooth degree, when guaranteeing that the water source is collected, effectual reduction is to centrifugal pump centrifugal efficiency's loss, be favorable to guaranteeing centrifugal pump's pumping efficiency.
2. The water source moves the impact force that produces on the guide bar in the drain pipe to make the guide bar move the blend stop and upwards overturn along rotating the junction through impact force, thereby make the strip type groove open under the rivers impact effect, and the inside of annular casing is got into to partial water source along strip type groove, and inside the annular casing gets into first connecting pipe along annular casing, inside the water tank is got into along first connecting pipe again.
3. When the supporting ring moves along the inclined strip to fill the inside of the L-shaped limiting strip, the barrier strip returns to the initial position along the rotating joint, so that the strip-shaped groove is plugged again, the water source inside the drain pipe cannot continuously enter the annular shell, water inflow is stopped automatically, the barrier strip is turned back to the inside of the strip-shaped groove, the influence of the turning of the barrier strip on the drainage inside the drain pipe is reduced, and the drainage efficiency inside the drain pipe is guaranteed.
4. The movable frame drives the blocking pin to move, the blocking pin drives the sealing piston to separate from the inside of the second connecting pipe, so that blocking of the communicating part of the second connecting pipe and the water tank is relieved, a water source inside the water tank enters the inside of the pump shell along the second connecting pipe, the pull ring is loosened when water filling is finished, the blocking pin drives the sealing piston to move towards the inside of the second connecting pipe under the elastic action of the spring, and accordingly the communicating part of the second connecting pipe and the water tank is blocked again, and water storage is carried out inside the water tank again conveniently.
5. When the movable rod rotates downwards along the rotating joint and the movable rod is positioned between the fixed rod and the water tank, one end of the movable rod moves downwards and is close to the surface of the rotating ring, and when the arc-shaped pulling piece on the rotating ring is just positioned above the movable rod, the arc-shaped pulling piece is extruded by the movable rod, so that the rotating ring rotates relatively under the unidirectional clamping action of the ratchet wheel and the elastic supporting piece, the arc-shaped pulling piece rotates to be separated from the lower part of the movable rod, and the arc-shaped pulling piece is prevented from being supported by the movable rod to cause the condition that the movable rod cannot overturn downwards.
Drawings
FIG. 1 is a first schematic diagram of the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention;
FIG. 3 is a second schematic diagram of the present invention;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 3 according to the present invention;
FIG. 5 is an enlarged schematic view of the structure at C in FIG. 3 according to the present invention;
FIG. 6 is a schematic view of a portion of the structure of the present invention (with the connecting ring and motor hidden);
FIG. 7 is an enlarged schematic view of the structure at D in FIG. 6 according to the present invention;
FIG. 8 is a schematic cross-sectional view of the present invention;
FIG. 9 is an enlarged schematic view of the structure of FIG. 8 according to the present invention;
FIG. 10 is an enlarged schematic view of the structure of FIG. 8 at F in accordance with the present invention;
FIG. 11 is a schematic cross-sectional view of a portion of the structure of the present invention (with the pump housing, inlet tube and tank being cut away);
FIG. 12 is an enlarged schematic view of the structure at G in FIG. 11 according to the present invention;
fig. 13 is a schematic view of the matching structure of the support ring and the fixing frame of the present invention.
In the figure: 1. a mounting base; 2. a fixed block; 3. a pump housing; 4. a water inlet pipe; 5. a drain pipe; 6. a connecting ring; 7. a pump shaft; 8. a centrifugal impeller disc; 9. a motor; 10. a water tank; 11. an annular housing; 12. a first connection pipe; 13. a second connection pipe; 14. a one-way valve; 15. a bar-shaped groove; 16. a barrier strip; 17. a guide bar; 18. a support ring; 19. an L-shaped limit bar; 20. an inclined bar; 21. a connecting plate; 22. a round pin; 23. a fixing frame; 24. a first connecting rod; 25. a linkage bar; 26. a second connecting rod; 27. a floating block; 28. a movable frame; 29. plugging pins; 30. a sealing piston; 31. a limiting pin; 32. a spring; 33. a pull ring; 34. a fixed rod; 35. a movable rod; 36. a ratchet wheel; 37. a rotating ring; 38. an elastic abutting piece; 39. an arc-shaped plectrum; 40. a flange plate; 41. a connection hole; 42. a fixed shaft; 43. helical blades.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The single-stage end suction centrifugal pump capable of reducing efficiency loss as shown in fig. 1 to 13 comprises a mounting base 1, wherein the top of the mounting base 1 is fixedly connected with a fixed block 2, one side of the fixed block 2 is fixedly provided with a pump shell 3, the axis of one side of the pump shell 3 is fixedly communicated with a water inlet pipe 4, and the top of the pump shell 3 is fixedly communicated with a water outlet pipe 5;
the top of the mounting base 1 is fixedly connected with a connecting ring 6, the inside of the connecting ring 6 is rotationally connected with a pump shaft 7, one end of the pump shaft 7 penetrates through the fixed block 2 and the pump shell 3 and extends into the pump shell 3, and then is fixedly connected with a centrifugal impeller disc 8, the mounting base 1 is fixedly provided with a motor 9, and an output shaft of the motor 9 is fixedly connected with the pump shaft 7;
The top of the fixed block 2 is fixedly connected with a water tank 10, an annular shell 11 is fixedly arranged above the drain pipe 5, a first connecting pipe 12 is fixedly communicated between the annular shell 11 and the top of the water tank 10, a second connecting pipe 13 is fixedly communicated between the drain pipe 5 and the lower part of one side of the water tank 10, a one-way valve 14 is fixedly arranged on the second connecting pipe 13, a water source collecting mechanism and an automatic stopping mechanism are connected inside the annular shell 11, and a water filling plugging mechanism is connected on the water tank 10; during operation, in the prior art, two connecting pipes are fixedly communicated with the surface of a volute pump shell of a centrifugal pump, and partial drainage enters the connecting pipes by utilizing centrifugal force generated during operation of the centrifugal pump and is stored by utilizing a box body, so that water filling preparation work before next operation is convenient, during operation of the centrifugal pump, the integrity and smoothness of the inner wall of the volute pump shell of the centrifugal pump greatly influence the centrifugal drainage efficiency of the centrifugal pump, and through fixedly connecting pipelines on the surface of the volute pump shell, the centrifugal efficiency of the centrifugal pump is reduced, and the drainage effect of the centrifugal pump is influenced; the technical scheme can solve the problems, and the specific working mode is as follows: connecting a pipeline at one end of a water inlet pipe 4, placing one end of the pipeline in a water body to be extracted, then removing the blocking effect of a water filling blocking mechanism on the communication part of a water tank 10 and a second connecting pipe 13, enabling a water source stored in the water tank 10 to enter the inside of a water discharge pipe 5 along the second connecting pipe 13 and enter the inside of a pump shell 3 along the water discharge pipe 5 until the pump shell 3 is filled, then starting a motor 9, driving a pump shaft 7 to rotate in the inside of a connecting ring 6 by an output shaft of the motor 9, driving a centrifugal impeller disc 8 to rotate in the pump shell 3, enabling the water source in the pump shell 3 to move upwards along the communication part of the pump shell 3 and the water discharge pipe 5 by centrifugal force generated by rotation of the centrifugal impeller disc 8, and continuously supplementing the water source to be extracted into the pump shell 3 by the water inlet pipe 4, when the inside water source of pump case 3 upwards discharges along drain pipe 5, the water source collects the inside partial water source of drain pipe 5 to carry to inside the water tank 10 and store, and after the inside water source of water tank 10 reaches a take the altitude, stop the transport of water source to inside the water tank 10 through the effect of automatic stop mechanism, when being favorable to drawing water next time, can utilize the inside water source of storing of water tank 10 to irrigate the inside of pump case 3, improve centrifugal pump's operating efficiency, and collect the water source through on drain pipe 5, reduce the influence of water source collection to pump case 3 shape and smoothness, when guaranteeing that the water source is collected, effectual reduction is favorable to guaranteeing centrifugal pump's efficiency of drawing water.
As a further embodiment of the invention, the water source collecting mechanism comprises a plurality of strip-shaped grooves 15, the plurality of strip-shaped grooves 15 are arranged on the side surface of the drain pipe 5 in a circumferential array, the strip-shaped grooves 15 are communicated with the annular shell 11, the inside of the strip-shaped grooves 15 is rotatably connected with a baffle strip 16, the lower part of one side of the baffle strip 16 close to the inner wall of the drain pipe 5 is fixedly connected with a guide strip 17, and the guide strip 17 is contacted with the inner wall of the drain pipe 5; when the centrifugal impeller disc 8 rotates in the pump shell 3 and the water source in the pump shell 3 is discharged along the inner part of the drain pipe 5 by the centrifugal force generated by the rotation of the centrifugal impeller disc 8, the impact force generated by the movement of the water source in the drain pipe 5 acts on the guide strip 17, and the guide strip 17 drives the baffle strip 16 to turn upwards along the rotating joint by the impact force, so that the strip-shaped groove 15 is opened under the impact of water flow, part of the water source enters the inner part of the annular shell 11 along the strip-shaped groove 15, enters the inner part of the first connecting pipe 12 along the annular shell 11 and enters the inner part of the water tank 10 along the first connecting pipe 12.
As a further embodiment of the present invention, the automatic stopping mechanism includes a supporting ring 18 and a plurality of L-shaped limiting strips 19, the L-shaped limiting strips 19 are respectively and fixedly connected to one sides of the baffle strips 16 and located inside the annular housing 11, one ends of the L-shaped limiting strips 19 are respectively and fixedly connected with an inclined strip 20, the supporting ring 18 is sleeved on the drain pipe 5 and located inside the annular housing 11, two connecting plates 21 are fixedly connected to the side surfaces of the supporting ring 18, round pins 22 are respectively and fixedly connected to the bottoms of the connecting plates 21, the two round pins 22 respectively penetrate through the annular housing 11 and extend below the annular housing 11 and are fixedly connected with a fixing frame 23, a first connecting rod 24 is fixedly connected to the fixing frame 23, one end of the first connecting rod 24 is fixedly connected with a linkage strip 25, one end of the linkage strip 25 is fixedly connected with a second connecting rod 26, and one end of the second connecting rod 26 penetrates through the water tank 10 and extends into the interior of the water tank 10 and is fixedly connected with a floating block 27; when the water level rises to a certain extent and is contacted with the floating block 27, the floating block 27 rises along with the water level under the action of buoyancy to drive the second connecting rod 26 to move upwards, the second connecting rod 26 drives the linkage bar 25 to rise, the linkage bar 25 drives the first connecting rod 24 and the fixing frame 23 to rise, the round pin 22 at the top of the fixing frame 23 moves upwards along the sliding insertion position of the annular shell 11, so that the supporting ring 18 moves upwards in the annular shell 11, when the supporting ring 18 moves to fill the inside of the L-shaped limiting bar 19 along the inclined bar 20, the water source inside the water tank 10 gradually increases, the floating block 27 returns to the initial position along the rotating connection position, so that the water source inside the drain pipe 5 automatically stops entering the annular shell 11 and the drain pipe 5 can not enter the annular shell 16 to automatically, the drain pipe 5 can not be turned over, and the drain pipe efficiency can not be guaranteed to be continuously and the drain pipe 5 can not be guaranteed.
As a further embodiment of the invention, the irrigation blocking mechanism comprises a movable frame 28, the movable frame 28 is arranged on one side of the water tank 10, a blocking pin 29 is fixedly connected to the movable frame 28, one end of the blocking pin 29 penetrates through the water tank 10 and extends into the water tank 10, then a sealing piston 30 is fixedly connected to the sealing piston 30, the sealing piston 30 is sealed in the second connecting pipe 13 in a sliding manner, two limiting pins 31 are inserted into the movable frame 28 in a sliding manner, the limiting pins 31 are fixedly connected to the water tank 10, springs 32 are sleeved on the limiting pins 31, two ends of the springs 32 are respectively fixedly connected to the movable frame 28 and one end of the corresponding limiting pin 31, and pull rings 33 are fixedly connected to the movable frame 28; during operation, the sealing piston 30 at one end of the sealing pin 29 is used for sliding sealing the communication part between the second connecting pipe 13 and the water tank 10, so that water source in the water tank 10 is prevented from running off, when the water source stored in the water tank 10 is required to be poured into the pump shell 3, the pull ring 33 is pulled, the pull ring 33 drives the movable frame 28 to move along the sliding insertion part of the limiting pin 31, the spring 32 is extruded to generate compression deformation, the movable frame 28 drives the sealing pin 29 to move, the sealing pin 29 drives the sealing piston 30 to separate from the second connecting pipe 13, and therefore the sealing of the communication part between the second connecting pipe 13 and the water tank 10 is released, the water source in the water tank 10 enters the pump shell 3 along the second connecting pipe 13, the pull ring 33 is released after the water filling is finished, the sealing pin 29 drives the sealing piston 30 to move towards the inside of the second connecting pipe 13 under the elastic action of the spring 32, and the communication part between the second connecting pipe 13 and the water tank 10 is plugged again, and water storage inside the water tank 10 is facilitated.
As a further embodiment of the invention, a fixed rod 34 is fixedly connected to one side of the movable frame 28, a movable rod 35 is rotatably connected to one side of the water tank 10, one end of the fixed rod 34 abuts against the side surface of the movable rod 35, a ratchet 36 is fixedly connected to the surface of the pump shaft 7, a rotating ring 37 is rotatably connected to the surface of the ratchet 36, two elastic abutting pieces 38 are fixedly connected to the inner wall of the rotating ring 37 in a circumferential array, the elastic abutting pieces 38 are clamped with the ratchet 36, an arc-shaped pulling piece 39 is fixedly connected to the surface of the rotating ring 37, and one end of the movable rod 35 is positioned above the arc-shaped pulling piece 39; when the movable frame 28 moves to one side under the drive of the pull ring 33 to release the blocking of the communication part between the second connecting pipe 13 and the water tank 10, the fixed rod 34 moves synchronously along with the movable frame 28 to enable the movable rod 35 to be positioned above the fixed rod 34 and the water tank 10, the movable rod 35 rotates downwards along the rotating joint to enable the movable rod 35 to be positioned between the fixed rod 34 and the water tank 10 to block the movable frame 28 from returning to the initial position, meanwhile, one end of the movable rod 35 is positioned at the top of the rotating ring 37 along with the downward overturning, after a water source in the water tank 10 is filled into the pump shell 3, the motor 9 is started and centrifugal pumping is carried out under the rotating action of the pump shaft 7 driving the centrifugal impeller disc 8, the ratchet 36 synchronously rotates along with the pump shaft 7 and synchronously rotates under the clamping action of the ratchet 36 and the elastic abutting piece 38, the rotating ring 37 drives the arc-shaped shifting piece 39 to rotate, the movable rod 35 is extruded through the arc-shaped pulling piece 39 in the rotating process, so that the blocking effect of the movable rod 35 on the fixed rod 34 is relieved, the movable frame 28 is returned to the initial position under the elastic effect of the spring 32, the sealing piston 30 is driven to seal the communication position of the second connecting pipe 13 and the water tank 10, when the centrifugal pump is used for filling water and pumping water, the communication position of the water tank 10 and the second connecting pipe 13 is synchronously sealed, the water tank 10 is used for normally storing water, when the movable rod 35 rotates downwards along the rotating connection position and the movable rod 35 is positioned between the fixed rod 34 and the water tank 10, one end of the movable rod 35 moves downwards and is close to the surface of the rotating ring 37, when the arc-shaped pulling piece 39 on the rotating ring 37 is just positioned above the movable rod 35, the arc-shaped pulling piece 39 is extruded through the movable rod 35, the rotating ring 37 rotates relatively under the unidirectional clamping action of the ratchet 36 and the elastic propping piece 38, so that the arc-shaped poking piece 39 rotates to be separated from the lower part of the movable rod 35, and the condition that the movable rod 35 cannot be turned down due to the fact that the arc-shaped poking piece 39 butts against the movable rod 35 is prevented.
As a further embodiment of the invention, one end of each of the water inlet pipe 4 and the water outlet pipe 5 is fixedly connected with a flange 40, and a plurality of connecting holes 41 are fixedly connected on the flange 40 in a circumferential array; during operation, through the one end fixed flange 40 at inlet tube 4 and drain pipe 5, be convenient for connect the extension pipeline on inlet tube 4 and drain pipe 5 to carry out bolted connection through connecting hole 41, thereby be favorable to the pumping position and the drainage position of centrifugal pump can be close to appointed region.
As a further embodiment of the invention, a fixed shaft 42 is fixedly connected to the axial center position of one side of the centrifugal impeller disc 8, a spiral blade 43 is connected to the fixed shaft 42, and the fixed shaft 42 and the spiral blade 43 are both positioned inside the water inlet pipe 4; when the centrifugal impeller disc 8 rotates along with the pump shaft 7 in operation, the centrifugal impeller disc 8 drives the fixed shaft 42 to synchronously rotate, the fixed shaft 42 drives the spiral blades 43 to rotate in the water inlet pipe 4, and a water source enters the pump shell 3 along the water inlet pipe 4 under the spiral guiding action of the spiral blades 43, so that the pumping efficiency of the centrifugal pump is improved.
The working principle of the invention is as follows:
Connecting a pipeline at one end of a water inlet pipe 4, placing one end of the pipeline in a water body to be extracted, then removing the blocking effect of a water filling blocking mechanism on the communication part of a water tank 10 and a second connecting pipe 13, enabling a water source stored in the water tank 10 to enter the inside of a water discharge pipe 5 along the second connecting pipe 13 and enter the inside of a pump shell 3 along the water discharge pipe 5 until the pump shell 3 is filled, then starting a motor 9, driving a pump shaft 7 to rotate in the inside of a connecting ring 6 by an output shaft of the motor 9, driving a centrifugal impeller disc 8 to rotate in the pump shell 3, enabling the water source in the pump shell 3 to move upwards along the communication part of the pump shell 3 and the water discharge pipe 5 by centrifugal force generated by rotation of the centrifugal impeller disc 8, and continuously supplementing the water source to be extracted into the pump shell 3 by the water inlet pipe 4, when the inside water source of pump case 3 upwards discharges along drain pipe 5, the water source collects the inside partial water source of drain pipe 5 to carry to inside the water tank 10 and store, and after the inside water source of water tank 10 reaches a take the altitude, stop the transport of water source to inside the water tank 10 through the effect of automatic stop mechanism, when being favorable to drawing water next time, can utilize the inside water source of storing of water tank 10 to irrigate the inside of pump case 3, improve centrifugal pump's operating efficiency, and collect the water source through on drain pipe 5, reduce the influence of water source collection to pump case 3 shape and smoothness, when guaranteeing that the water source is collected, effectual reduction is favorable to guaranteeing centrifugal pump's efficiency of drawing water.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a reducible efficiency loss's single-stage end suction centrifugal pump, includes installation base (1), its characterized in that, the top fixedly connected with fixed block (2) of installation base (1), one side fixed mounting of fixed block (2) has pump case (3), the axle center department of pump case (3) one side is fixed to be linked together has inlet tube (4), the top of pump case (3) is fixed to be linked together has drain pipe (5);
The top of the mounting base (1) is fixedly connected with a connecting ring (6), the inside of the connecting ring (6) is rotationally connected with a pump shaft (7), one end of the pump shaft (7) penetrates through the fixed block (2) and the pump shell (3) and extends into the pump shell (3) to be fixedly connected with a centrifugal impeller disc (8), a motor (9) is fixedly mounted on the mounting base (1), and an output shaft of the motor (9) is fixedly connected to the pump shaft (7);
The water tank (10) is fixedly connected to the top of the fixed block (2), the annular shell (11) is fixedly arranged above the water drain pipe (5), a first connecting pipe (12) is fixedly communicated between the annular shell (11) and the top of the water tank (10), a second connecting pipe (13) is fixedly communicated between the water drain pipe (5) and the lower part of one side of the water tank (10), a one-way valve (14) is fixedly arranged on the second connecting pipe (13), a water source collecting mechanism and an automatic stopping mechanism are connected to the inside of the annular shell (11), and a water filling plugging mechanism is connected to the water tank (10);
The water filling and plugging mechanism comprises a movable frame (28), the movable frame (28) is arranged on one side of the water tank (10), a plugging pin (29) is fixedly connected to the movable frame (28), one end of the plugging pin (29) penetrates through the water tank (10) and extends to the inside of the water tank (10) to be fixedly connected with a sealing piston (30), the sealing piston (30) is in sliding sealing with the inside of the second connecting pipe (13), two limiting pins (31) are inserted on the movable frame (28) in a sliding manner, the limiting pins (31) are fixedly connected to the water tank (10), springs (32) are sleeved on the limiting pins (31), two ends of each spring (32) are fixedly connected to the movable frame (28) and one end of the corresponding limiting pin (31), and pull rings (33) are fixedly connected to the movable frame (28);
The water source collecting mechanism comprises a plurality of strip-shaped grooves (15), the plurality of strip-shaped grooves (15) are formed in a circumferential array on the side face of the drain pipe (5), the strip-shaped grooves (15) are all communicated with the annular shell (11), a baffle strip (16) is rotationally connected to the inside of the strip-shaped grooves (15), a guide strip (17) is fixedly connected to the lower part of one side, close to the inner wall of the drain pipe (5), of the baffle strip (16), and the guide strip (17) is in contact with the inner wall of the drain pipe (5);
The automatic stopping mechanism comprises a supporting ring (18) and a plurality of L-shaped limiting strips (19), wherein the L-shaped limiting strips (19) are fixedly connected to a plurality of the L-shaped limiting strips (16) respectively, one side of each blocking strip is located inside each annular shell (11), one end of each L-shaped limiting strip (19) is fixedly connected with an inclined strip (20), the supporting ring (18) is sleeved on each drain pipe (5) and located inside each annular shell (11), two connecting plates (21) are fixedly connected to the side face of each supporting ring (18), round pins (22) are fixedly connected to the bottoms of the connecting plates (21), two round pins (22) penetrate through each annular shell (11) and extend to the lower portion of each annular shell (11), a fixing frame (23) is fixedly connected to each end of each fixing frame (23), one end of each first connecting rod (24) is fixedly connected with a connecting rod (25), one end of each connecting rod (25) is fixedly connected with a second connecting rod (26), and one end of each connecting rod (26) extends to each water tank (10) and is fixedly connected to the water tank (10).
2. The single-stage end suction centrifugal pump capable of reducing efficiency loss according to claim 1, wherein one side of the movable frame (28) is fixedly connected with a fixed rod (34), one side of the water tank (10) is rotatably connected with a movable rod (35), one end of the fixed rod (34) abuts against the side face of the movable rod (35), a ratchet wheel (36) is fixedly connected with the surface of the pump shaft (7), a rotating ring (37) is rotatably connected with the surface of the ratchet wheel (36), two elastic abutting pieces (38) are fixedly connected to the inner wall of the rotating ring (37) in a circumferential array, the elastic abutting pieces (38) are connected with the ratchet wheel (36) in a clamping mode, an arc-shaped poking piece (39) is fixedly connected with the surface of the rotating ring (37), and one end of the movable rod (35) is located above the arc-shaped poking piece (39).
3. A single-stage end suction centrifugal pump capable of reducing efficiency loss according to claim 1, wherein the water inlet pipe (4) and one end of the water outlet pipe (5) are fixedly connected with a flange plate (40), and a plurality of connecting holes (41) are fixedly connected to the flange plate (40) in a circumferential array.
4. A single-stage end suction centrifugal pump capable of reducing efficiency loss according to claim 3, wherein a fixed shaft (42) is fixedly connected to the axial center position of one side of the centrifugal impeller disc (8), a spiral blade (43) is connected to the fixed shaft (42), and the fixed shaft (42) and the spiral blade (43) are both positioned in the water inlet pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410185770.1A CN117738939B (en) | 2024-02-20 | Single-stage end suction centrifugal pump capable of reducing efficiency loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410185770.1A CN117738939B (en) | 2024-02-20 | Single-stage end suction centrifugal pump capable of reducing efficiency loss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117738939A CN117738939A (en) | 2024-03-22 |
| CN117738939B true CN117738939B (en) | 2024-05-03 |
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