CN111963452A - Prevent well immersible pump that silt blockked up - Google Patents
Prevent well immersible pump that silt blockked up Download PDFInfo
- Publication number
- CN111963452A CN111963452A CN202010876387.2A CN202010876387A CN111963452A CN 111963452 A CN111963452 A CN 111963452A CN 202010876387 A CN202010876387 A CN 202010876387A CN 111963452 A CN111963452 A CN 111963452A
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- Prior art keywords
- pump
- water
- impeller
- blade
- silt
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 220
- 238000005086 pumping Methods 0.000 claims abstract description 49
- 239000000919 ceramic Substances 0.000 claims description 36
- 239000010802 sludge Substances 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 21
- 230000008093 supporting effect Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 36
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000003434 inspiratory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 239000013049 sediment Substances 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 241001113556 Elodea Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
Abstract
The invention relates to the technical field of water pumping equipment, in particular to a submersible pump for a well, which is prevented from being blocked by silt, and comprises a pump shaft arranged on a motor, wherein at least two impellers are fixedly connected to the pump shaft; set up the elasticity water conservancy diversion cover in the pump case at impeller rear, formed a row mud passageway between elasticity water conservancy diversion cover and the kuppe, when inspiratory aquatic mud content is great, because the centrifugal force that the impeller rotation produced, make the more border of silt in aquatic draw close, and discharge through arranging the mud passageway, and utilize multistage impeller can discharge the silt of aquatic one by one, the content of great reduction aquatic silt, not only reduce the impeller like this by the corruption and the wearing and tearing of silt, reduce remaining silt volume in the pump case, reduce the corruption, the quality of water of discharging is also improved.
Description
Technical Field
The invention relates to the technical field of water pumping equipment, in particular to a submersible pump for a well, which is used for preventing silt blockage.
Background
The submersible pump is an important device for pumping water from a deep well, when the submersible pump is used, the whole unit is submerged into water to work, underground water is pumped to the ground surface, and the submersible pump is used in the fields of domestic water, mine emergency rescue, industrial cooling, farmland irrigation, seawater lifting, ship load adjustment and the like.
Disclosure of Invention
The invention aims to provide a submersible pump for a well, which is prevented from being blocked by silt, so as to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a prevent immersible pump for well of silt jam, is including installing the pump shaft on the motor, two at least impellers of fixedly connected with on the pump shaft, the outside of impeller is equipped with the pump case, the top install the pump case on the pump case, the below install into water the pump case on the pump case, the inner wall of pump case is equipped with the support blade, the inside of pump case is equipped with and is located the converging blade of impeller drainage side, support the blade with it extends to be equipped with partly between the converging blade the elasticity water conservancy diversion cover of impeller inner wall is located the inboard of elasticity water conservancy diversion cover, edge impeller inboard and converging blade side form the pump water passageway, are located the inboard of pump case and last pump case is followed the outside of elasticity water conservancy diversion cover, impeller forms row's mud passageway, be equipped with on the intake pump case with the row's mud chamber of mud passageway intercommunication.
The pump shaft is connected with the output shaft of the motor through a coupling, one end of the water inlet pump shell is installed on the pump shell at the lowest end through a bolt, the other end of the water inlet pump shell is installed on the motor shell through a bolt, the whole pump is that the motor is vertically placed in a well below, when the motor drives the pump shaft to rotate, the impeller in the pump shell rotates, water is thrown into the upper-stage impeller through centrifugal force in the rotating process and is continuously pressurized until the water is thrown out of the upper pump shell, in the process of pumping water, the impeller collects the water between the guide cover and the conical seat through the guiding effect of the guide cover and the conical seat, the water is discharged into the upper-stage pump shell by utilizing the thrust of the water pumping blades, and in the process of pushing water discharge, silt in the water is close to the inner wall of the guide cover due to the action of the centrifugal force, then the part with larger silt content is guided into the silt discharge channel through the separation effect of the elastic, most of water with less mud content enters the converging blade from the inner side of the elastic flow guide sleeve through the water pumping channel, is gathered and guided by the converging blade, so that the water flow can just enter the front end of the next-stage impeller, then is pushed backwards by the thrust generated by the next-stage impeller, and simultaneously pushes the residual silt in the water outwards, namely the inner wall direction of the flow guide cover, and then enters the mud discharge channel, thereby realizing the purpose of pushing the silt in the water outwards step by step to reduce the silt content in the pumped water, and simultaneously reducing the contact between the upper-layer impeller and the silt gradually, compared with the prior art that each impeller needs to contact a large amount of silt, the pressure and the friction between the upper-stage impeller and the silt are higher, so that the abrasion is more easily generated, the invention can reduce the abrasion of the upper-stage impeller, and the output water quality is better, and does not need further water filtering treatment, and the silt of getting rid of through row mud passageway flows downwards through row mud passageway, discharges from the row mud chamber on the intake pump shell again, because row mud chamber always flows, and downward circulation, consequently the silt content in arranging the mud chamber is also less relatively, can reduce the corruption of silt to the pump case.
Preferably, the impeller includes pump water blade, kuppe and awl seat, be equipped with on the awl seat and install epaxial shaft hole of pump, the kuppe is located the outside of awl seat, pump water blade is centrosymmetric's distribution and is in the awl seat with between the kuppe, the outer wall of kuppe still is equipped with row's husky blade, arrange husky blade with pump water blade's incline direction is opposite.
Utilize the key to fix between awl seat and the pump shaft, kuppe and awl seat are located the outside and the inboard of pumping blade respectively, can carry out water conservancy diversion and the effect that collects to water, make rivers all flow through between the pumping blade, improve the work efficiency of pumping blade, pump water passageway has been formed between every pumping blade, arrange husky in order to make that row's mud passageway can be better, arrange husky blade with the inclination opposite of pumping blade has been set up on the outer wall of kuppe, when pumping blade upwards pushes away water, arrange husky blade downwards push down water, in order to increase the wearability of arranging husky blade and kuppe, arrange the inlayer of husky blade and kuppe and set up ceramic layer or rubber layer.
Preferably, the drainage end of the water pumping blade is close to the inner wall of the guide cover, and an avoiding groove is formed in the inner wall of the guide cover, and the elastic guide sleeve extends into the avoiding groove.
In order to make the front end of elasticity water conservancy diversion cover have the space of activity, the end at pump water vane has set up and has dodged the groove, and because the great water layer of silt content is located the outside, dodge the groove and be close to the inner wall department of kuppe, the front end when elasticity water conservancy diversion cover is dodging the groove activity, when being close to the kuppe, then the clearance that accesss to row mud passageway reduces, the efficiency of pumping, arrange mud is low, when keeping away from the kuppe, then the clearance that accesss to row mud passageway increases, the inefficiency of pumping, arrange mud efficient, but when silt content is big, do not need great pumping efficiency, the wearing and tearing of increase to the impeller that can be great like this and the pump body, the quality of water that goes out simultaneously is also very poor.
Preferably, the support blade is close to one side of elasticity water conservancy diversion cover is equipped with the deformation recess, elasticity water conservancy diversion cover is the elasticity material, the both sides of deformation recess do respectively the first connecting portion and the second connecting portion of elasticity water conservancy diversion cover, the first connecting portion of elasticity water conservancy diversion cover, second connecting portion all with support blade, the blade fixed connection that converges, the elasticity water conservancy diversion cover is close to the one end of impeller is equipped with the end, the end with form the mud discharge clearance between the impeller.
Wherein, elasticity water conservancy diversion cover is the elastic steel piece for the elasticity material, the elastic steel piece can be the multilayer, set up the buffer layer between the multilayer, if air bed or water filling layer, when water pushed up the water that comes by the impeller of next-level caused pressure to elasticity water conservancy diversion cover department, because deformation groove does not support, and first connecting portion and second connecting portion department give the support, elasticity water conservancy diversion cover can be because of lever principle promptly, the tip department can take place the perk or descend, the tip is the extension of a plurality of salients, have the clearance between the tip, guarantee can the reducing when warping, adopt between the tip to connect with elastic rubber, take place between the tip perk or descend between the process each other be close to or keep away from and cushion.
Preferably, the elastic flow guide sleeve is made of rubber, a plurality of steel sheets which are distributed in a central symmetry mode are embedded in the elastic flow guide sleeve, and the steel sheets extend to the end portion of the end from the middle position of the deformation groove.
When the inner side of the elastic flow guide sleeve is pressed greatly, namely the sediment content in water is relatively high, at the moment, the deformation amount of the elastic flow guide sleeve facing to the direction of the deformation groove is large, then the elastic flow guide sleeve is positioned at the deformation groove and expands outwards, due to the rigid supporting effect of the steel sheets, the end head is tilted and contracts by using rubber to buffer the deformation of the reduction of the gap between the steel sheets, at the moment, the mud discharge channel is enlarged, more water with large sediment content is discharged from the mud discharge channel, the self-adaption increasing mud discharge efficiency according to the sediment content in the water is realized, when the sediment content in the water is small, the deformation amount of the elastic flow guide sleeve facing to the direction of the deformation groove is small, then the elastic flow guide sleeve is positioned at the deformation groove and contracts inwards, due to the rigid supporting effect of the steel sheets, the end head is close to the inner wall of the flow guide sleeve, and the rubber is used to expand to buffer the deformation of the increase of the gap between the, at the moment, the sludge discharge channel is reduced, the sludge discharge amount is naturally reduced, and the water pumping amount is naturally increased.
Preferably, the length ratio of the steel sheet on both sides of the second connecting portion is 4: 1.
the length ratio can be used for enabling the deformation amount of the steel sheets at the end heads to be smaller, so that the change amount of the gaps between the adjacent steel sheets is reduced, and the end heads are in a tilted shape, so that the flux change size of the mud discharging channel can be increased.
Preferably, a support for supporting the pump shaft is arranged on the inner side of the upper pump casing, a tail end impeller fixedly connected with the pump shaft is further arranged on the inner wall of the upper pump casing, and blades are arranged on the inner wall of the tail end impeller.
Go up the support on the pump case and mainly be used for supporting the pump shaft, keep its rotation more stable, blade and pump water blade on the terminal impeller are different, do not dodge the groove, go up the top of pump case and directly connect drainage pipe, utilize the blade to directly push into the pipeline with relatively clear water, just so can prevent after shutting down, in the sediment deposit pump in the pipeline.
Preferably, the water inlet pump shell is further provided with a water inlet portion communicated with the pump water channel, the number of the water inlet portion and the number of the sludge discharge cavities are two, the two water inlet portions are symmetrically distributed, the two sludge discharge cavities are symmetrically distributed, and the outlets of the sludge discharge cavities are located below the water inlet portions.
The water inlet part is a mesh plate, when negative pressure is generated in the impeller, water enters the water inlet pump shell from the water inlet part, the two water inlet parts are symmetrically distributed, the mud-water mixture discharged from the mud discharging channel flows out of the mud discharging cavity, and the outlet of the mud discharging cavity is arranged at the lower part so as not to influence water inlet.
Preferably, the outlet of the sludge discharge cavity is arranged to be an annular groove with an outward opening, a cleaning disc is arranged inside the annular groove and comprises a ceramic chassis, ceramic blades and cleaning columns, a plurality of ceramic blades which are distributed in a central symmetry mode are fixed on the ceramic chassis, and the cleaning columns are further fixed on the ceramic chassis and are arranged vertically.
When muddy water mixture in the mud discharging cavity flows to the cleaning disc, the muddy water mixture can impact the ceramic blades and the ceramic chassis, so that the ceramic chassis rotates, the cleaning column is driven to rotate outside the water inlet part when the ceramic chassis rotates, the space outside the water inlet part can be cleaned, and if foreign matters such as waterweeds are accumulated in the water inlet part, the cleaning column can be cleaned, so that the water inlet part is ensured not to be blocked.
Preferably, the height of the cleaning column is the same as that of the water inlet part, and the inner side of the ceramic chassis is provided with a flow guide part extending upwards.
Through the water conservancy diversion portion that sets up, can make ceramic chassis by slightly lifting up, reduce the rotation in-process and intake pump shell between the frictional resistance, it is more smooth and easy to rotate, cleans the post and can reliably clean the space in the portion outside of intaking.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the elastic flow guide sleeve is arranged in the pump shell behind the impeller, the mud discharge channel is formed between the elastic flow guide sleeve and the flow guide cover, when the mud content in the sucked water is larger, more mud in the water is drawn close to the edge due to the centrifugal force generated by the rotation of the impeller and is discharged through the mud discharge channel, and the mud in the water can be discharged successively by utilizing the multistage impeller, so that the content of the mud in the water is greatly reduced, the corrosion and the abrasion of the impeller by the mud are reduced, the amount of the mud and the sand remained in the pump shell is reduced, the corrosion is reduced, and the water quality of the discharged water is also improved.
Drawings
FIG. 1 is a schematic view of a submersible pump for preventing a mud blockage well according to the present invention;
FIG. 2 is a schematic structural diagram of a pump casing and an upper pump casing of the anti-sludge-clogging submersible pump for a well according to the present invention in a disassembled state;
FIG. 3 is a schematic view of the impeller of the submersible pump for preventing blockage of sludge according to the present invention;
FIG. 4 is a schematic view of the structure at A in FIG. 1;
FIG. 5 is another schematic structural view of FIG. 4;
FIG. 6 is a schematic cross-sectional view of a water inlet pump casing of a submersible pump for preventing mud blockage according to the present invention;
FIG. 7 is a schematic structural diagram of a sweeping disk in a submersible pump for preventing mud blockage according to the invention.
Reference numbers in the figures: 1. a pump shaft; 101. a water pumping channel; 102. a sludge discharge channel; 2. an impeller; 21. a water pumping blade; 211. an avoidance groove; 22. a sand discharge blade; 23. a pod; 24. a conical seat; 241. a shaft hole; 3. a pump housing; 301. a sludge discharge gap; 31. supporting the blades; 311. a deformation groove; 32. an elastic flow guide sleeve; 321. a tip; 322. a steel sheet; 33. a bus blade; 4. a water inlet pump shell; 401. a water inlet part; 402. a sludge discharge cavity; 5. cleaning the disc; 51. a ceramic chassis; 511. a flow guide part; 52. a ceramic blade; 53. cleaning the column; 6. an upper pump casing; 61. a support; 62. a tip impeller; 63. a blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1 to 7, a submersible pump for a well for preventing silt blockage comprises a pump shaft 1 installed on a motor, at least two impellers 2 are fixedly connected to the pump shaft 1, pump housings 3 are arranged on the outer sides of the impellers 2, an upper pump housing 6 is installed on the uppermost pump housing 3, a water inlet pump housing 4 is installed on the lowermost pump housing 3, supporting blades 31 are arranged on the inner wall of the pump housings 3, converging blades 33 located on the drainage side of the impellers 2 are arranged inside the pump housings 3, an elastic flow guide sleeve 32 partially extending on the inner wall of the impeller 2 is arranged between the supporting blades 31 and the converging blades 33, a pump water channel 101 is formed on the inner side of the elastic flow guide sleeve 32 along the inner sides of the impellers 2 and the side of the converging blades 33 and is located on the inner sides of the pump housings 3 and the upper pump, the mud discharging channel 102 is formed outside the impeller 2, and the inlet pump casing 4 is provided with a mud discharging cavity 402 communicated with the mud discharging channel 102.
The pump shaft 1 is connected with the output shaft of the motor through a coupling, one end of the water inlet pump shell 4 is installed on the pump shell 3 at the lowest end through a bolt, the other end of the water inlet pump shell is installed on the motor shell through a bolt, the whole pump is a motor which is vertically placed in a well below, when the motor drives the pump shaft 1 to rotate, the impeller 2 in the pump shell 3 rotates, water is thrown to the upper-stage impeller through centrifugal force in the rotating process and is continuously pressurized until the water is thrown out of the upper pump shell 6, in the water pumping process, the impeller 2 collects the water between the guide cover 23 and the conical seat 24 through the guide effect of the guide cover 23 and the conical seat 24, the water is discharged to the upper-stage pump shell 3 through the thrust of the pump water blades 21, silt in the water is close to the inner wall of the guide cover 23 due to the action of the centrifugal force in the water pushing and then passes through the separation effect of the elastic guide sleeve 32, the part with larger silt content is guided into the silt discharging channel 102, and most of the water with less silt content enters the converging blade 33 from the inner side of the elastic flow guide sleeve 32 through the water pumping channel 101, and is gathered and guided by the converging blade 33, so that the water flow can just enter the front end of the next-stage impeller 2, and then is pushed backwards by the thrust generated by the next-stage impeller 2, and simultaneously, silt still remaining in the water is pushed outwards, namely towards the inner wall of the flow guide cover 23, and then enters the silt discharging channel 102, thereby realizing the purpose of gradually pushing out the silt in the water to reduce the silt content in the pumping water, and simultaneously, the contact between the upper-stage impeller 2 and the silt is gradually reduced, compared with the prior art that each impeller 2 needs to contact a large amount of silt, and the pressure and the friction force between the upper-stage impeller 2 and the silt are larger, so that the abrasion is more easily generated, the invention can reduce the abrasion of the upper impeller 2, has better output water quality, does not need further water quality filtration treatment, and silt discharged through the mud discharge channel 102 flows downwards through the mud discharge channel 102 and is discharged from the mud discharge cavity 402 on the water inlet pump shell 4, because the mud discharge cavity 402 always flows and flows downwards, the silt content in the mud discharge cavity 402 is relatively less, and the corrosion of the silt to the pump shell 3 can be reduced.
Specifically, as shown in fig. 3, the impeller 2 includes water pumping blades 21, a flow guide cover 23 and a conical seat 24, a shaft hole 241 installed on the pump shaft 1 is arranged on the conical seat 24, the flow guide cover 23 is located on the outer side of the conical seat 24, the water pumping blades 21 are distributed between the conical seat 24 and the flow guide cover 23 in a centrosymmetric manner, sand discharging blades 22 are further arranged on the outer wall of the flow guide cover 23, and the inclination directions of the sand discharging blades 22 and the water pumping blades 21 are opposite.
The conical seat 24 and the pump shaft 1 are fixed by a key, the guide cover 23 and the conical seat 24 are respectively positioned at the outer side and the inner side of the water pumping blades 21 and can guide and collect water, so that water flows completely pass through the water pumping blades 21, the work efficiency of the water pumping blades 21 is improved, a water pumping channel 101 is formed between each water pumping blade 21, in order to enable the sludge discharging channel 102 to better discharge sand, the outer wall of the guide cover 23 is provided with the sand discharging blades 22 with the inclination angles opposite to those of the water pumping blades 21, when the water pumping blades 21 push water upwards, the sand discharging blades 22 push water downwards, and in order to increase the wear resistance of the sand discharging blades 22 and the guide cover 23, the inner and outer layers of the sand discharging blades 22 and the guide cover 23 are provided with ceramic layers or rubber layers.
Specifically, as shown in fig. 4-5, an avoiding groove 211 is formed at the drainage end of the water pumping blade 21 and near the inner wall of the air guide sleeve 23, and the elastic guide sleeve 32 extends into the avoiding groove 211.
In order to make the front end of the elastic flow guide sleeve 32 have a movable space, the tail end of the water pumping blade 21 is provided with an avoiding groove 211, and because a water layer with a large silt content is positioned at the outer side, the avoiding groove 211 is close to the inner wall of the flow guide cover 23, when the front end of the elastic flow guide sleeve 32 moves in the avoiding groove 211 and is close to the flow guide cover 23, the gap leading to the silt discharging channel 102 is reduced, the efficiency of pumping water is high, the efficiency of draining silt is low, when the front end is far away from the flow guide cover 23, the gap leading to the silt discharging channel 102 is increased, the efficiency of pumping water is low, the efficiency of draining silt is high, but when the silt content is large, the efficiency of pumping water is not high, the abrasion to the impeller and the pump body is greatly increased, and the water quality of discharged water is poor.
Specifically, as shown in fig. 4 to 5, one side of the support blade 31 close to the elastic flow guide sleeve 32 is provided with a deformation groove 311, the elastic flow guide sleeve 32 is made of an elastic material, two sides of the deformation groove 311 are respectively a first connecting portion and a second connecting portion of the elastic flow guide sleeve 32, the first connecting portion and the second connecting portion of the elastic flow guide sleeve 32 are both fixedly connected with the support blade 31 and the converging blade 33, one end of the elastic flow guide sleeve 32 close to the impeller 2 is provided with an end 321, and a mud discharge gap 301 is formed between the deformation end 321 and the impeller 2.
Wherein, elasticity water conservancy diversion cover 32 is the elastic steel piece for the elastic material, the elastic steel piece can be the multilayer, set up the buffer layer between the multilayer, like air bed or water filling layer, when water pushed up by the impeller 2 of next-level caused pressure to elasticity water conservancy diversion cover 32 department, because deformation recess 311 department does not support, and first connecting portion and second connecting portion department give the support, elasticity water conservancy diversion cover 32 can be because of lever principle promptly, end 321 department can take place the perk or descend, end 321 is a plurality of outstanding extensions, the clearance has between the end 321, guarantee can the reducing when warping, adopt to have elastic rubber to connect between the end 321, take place to warp between the end 321 or descend the process between be close to each other or keep away from and cushion.
Specifically, the elastic flow guide sleeve 32 may also be made of rubber, but in order to ensure the strength of the elastic flow guide sleeve 32 and to enable accurate deformation, a plurality of steel sheets 322 distributed in a centrosymmetric manner are embedded in the elastic flow guide sleeve 32, and the steel sheets 322 extend from the middle position of the deformation groove 311 to the end of the end 321.
When the inner side of the elastic flow guide sleeve 32 is pressed greatly, that is, the sediment content in water is relatively high, at this time, the deformation amount of the elastic flow guide sleeve 32 towards the direction of the deformation groove 311 is relatively large, then the elastic flow guide sleeve 32 is positioned at the deformation groove 311 and expands outwards, due to the rigid supporting effect of the steel sheets 322, the end 321 tilts and contracts by using rubber to buffer the deformation of the gap between the steel sheets 322, the sludge discharge gap 301 is enlarged, more water with large sediment content is discharged from the sludge discharge gap 301, the sludge discharge efficiency is adaptively increased according to the sediment content in water, when the sediment content in water is small, the deformation amount of the elastic flow guide sleeve 32 towards the direction of the deformation groove 311 is small, then the elastic flow guide sleeve 32 is positioned at the deformation groove 311 and contracts inwards, due to the rigid supporting effect of the steel sheets 322, the end 321 is close to the inner wall of the flow guide sleeve 23, and rubber is used for expanding to buffer the deformation of the gap between the steel sheets 322, at the moment, the sludge discharge gap 301 is reduced, the sludge discharge amount is naturally reduced, and the water pumping amount is naturally increased.
Specifically, as shown in fig. 4-5, the length ratio of the steel sheet 322 on both sides of the second connecting part is 3-4: 1.
this length ratio allows the amount of deformation of the steel sheets 322 at the tip 321 to be small, thereby reducing the amount of change in the gap between adjacent steel sheets 322, and the tip 321 itself has a tilted shape, thereby increasing the amount of change in the flux in the mud discharge gap 301.
Specifically, as shown in fig. 2, a support 61 for supporting the pump shaft 1 is disposed on the inner side of the upper pump casing 6, a tip impeller 62 fixedly connected to the pump shaft 1 is further disposed on the inner wall of the upper pump casing 6, and blades 63 are disposed on the inner wall of the tip impeller 62.
The support 61 on the upper pump shell 6 is mainly used for supporting the pump shaft 1 and keeping the rotation of the pump shaft more stable, the blades 63 on the tail end impeller 62 are different from the pump water blades 21, the groove 211 is not avoided, the upper part of the upper pump shell 6 is directly connected with a drainage pipeline, relatively clean water is directly pushed into the pipeline by the blades 63, and therefore sediment in the pipeline is prevented from being deposited into the pump after the pump is stopped.
Specifically, as shown in fig. 6, the water inlet pump casing 4 is further provided with two water inlet portions 401 communicated with the water pumping channel 101, the number of the water inlet portions 401 and the number of the sludge discharge cavities 402 are two, the two water inlet portions 401 are symmetrically distributed, the two sludge discharge cavities 402 are symmetrically distributed, and the outlets of the sludge discharge cavities 402 are located below the water inlet portions 401.
The water inlet portion 401 is a mesh plate, when negative pressure is generated in the impeller 2, water enters the water inlet pump casing 4 from the water inlet portion 401, the two water inlet portions 401 are symmetrically distributed, the mud-water mixture discharged from the mud discharging passage 102 flows out of the mud discharging cavity 402, and in order not to affect water inlet, the outlet of the mud discharging cavity 402 is arranged at the lower part.
Specifically, as shown in fig. 1 and 7, an outlet of the sludge discharge cavity 402 is provided as an annular groove with an outward opening, a cleaning disc 5 is arranged inside the annular groove, the cleaning disc 5 includes a ceramic base disc 51, ceramic blades 52 and cleaning columns 53, a plurality of ceramic blades 52 which are distributed in a central symmetry manner are fixed on the ceramic base disc 51, and the cleaning columns 53 which are arranged vertically are also fixed on the ceramic base disc 51.
When muddy water mixture in the mud discharging cavity 402 flows to the cleaning disc 5, the muddy water mixture can impact the ceramic blades 52 and the ceramic base disc 51, so that the ceramic base disc 51 rotates, when the ceramic base disc 51 rotates, the cleaning column 53 is driven to rotate outside the water inlet part 401, the space outside the water inlet part 401 can be cleaned, and if foreign matters such as waterweeds are accumulated in the water inlet part 401, the cleaning column can be cleaned, so that the water inlet part 401 is ensured not to be blocked.
Specifically, as shown in fig. 1, the cleaning column 53 has the same height as the water inlet portion 401, and a guide portion 511 extending upward is provided inside the ceramic base plate 51.
Through the water conservancy diversion portion 511 that sets up, can make ceramic chassis 51 be lifted up slightly, reduce the rotation in-process and intake pump shell 4 between the frictional resistance, it is more smooth and easy to rotate, cleans post 53 and can reliably clean the space in the outside of portion 401 of intaking.
The working principle is as follows: the pump shaft 1 is connected with the output shaft of the motor through a coupling, one end of the water inlet pump shell 4 is installed on the pump shell 3 at the lowest end through a bolt, the other end of the water inlet pump shell is installed on the motor shell through a bolt, the whole pump is a motor which is vertically placed in a well below, when the motor drives the pump shaft 1 to rotate, the impeller 2 in the pump shell 3 rotates, water is thrown to the upper-stage impeller through centrifugal force in the rotating process and is continuously pressurized until the water is thrown out of the upper pump shell 6, in the water pumping process, the impeller 2 collects the water between the guide cover 23 and the conical seat 24 through the guide effect of the guide cover 23 and the conical seat 24, the water is discharged to the upper-stage pump shell 3 through the thrust of the pump water blades 21, silt in the water is close to the inner wall of the guide cover 23 due to the action of the centrifugal force in the water pushing and then passes through the separation effect of the elastic guide sleeve 32, the part with larger silt content is guided into the silt discharging channel 102, and most of the water with less silt content enters the converging blade 33 from the inner side of the elastic flow guide sleeve 32 through the water pumping channel 101, and is gathered and guided by the converging blade 33, so that the water flow just can enter the front end of the impeller 2 of the next stage, and then is pushed backwards by the thrust generated by the impeller 2 of the next stage, and simultaneously, the silt still remained in the water is pushed towards the outer side, namely the inner wall direction of the flow guide sleeve 23, in order to ensure that the front end of the elastic flow guide sleeve 32 has a movable space, the tail end of the water pumping blade 21 is provided with an avoiding groove 211, and because the water layer with larger silt content is positioned at the outer side, the avoiding groove 211 is close to the inner wall of the flow guide sleeve 23, when the front end of the elastic flow guide sleeve 32 moves in the avoiding groove 211 and is close to the flow guide sleeve 23, the gap leading to the silt discharging channel 102 is reduced, the efficiency of pumping water is high, the efficiency of discharging mud is low, when the mud is far away from the air guide sleeve 23, the clearance leading to the mud discharge channel 102 is increased, the efficiency of pumping water is low, the efficiency of discharging mud is high, but when the mud content is large, the efficiency of pumping water is not needed to be large, the abrasion to the impeller and the pump body is greatly increased, the water quality of discharged water is also poor, when water pushed up by the impeller 2 of the next stage generates pressure on the elastic flow guide sleeve 32, because the deformation groove 311 is not supported, the first connecting part and the second connecting part are supported, namely, the elastic flow guide sleeve 32 can tilt or fall at the end 321 due to the lever principle, the end 321 is a plurality of protruding extending parts, the clearance is arranged between the ends 321, the diameter can be changed when the deformation is ensured, the ends 321 are connected by elastic rubber, the tilting or falling processes are mutually close to or far away for buffering, the mud-water mixture enters the mud discharging channel 102 from the mud discharging gap 301, so that silt in water is pushed out step by step to reduce the silt content in the pump water, meanwhile, the contact between the impeller 2 at the upper layer and the silt is gradually reduced, compared with the prior art that each impeller 2 needs to contact a large amount of silt, and the pressure and the friction between the impeller 2 at the upper layer and the silt are larger, so that the abrasion is more easily generated, the invention can reduce the abrasion of the impeller 2 at the upper layer, has better output water quality, does not need further water quality filtering treatment, silt discharged through the mud discharging channel 102 flows downwards through the mud discharging channel 102 and is discharged from the mud discharging cavity 402 on the water inlet pump shell 4, and because the mud discharging cavity 402 always flows and flows downwards, the silt content in the mud discharging cavity 402 is relatively low, so that the corrosion of the silt to the pump shell 3 can be reduced, when muddy water mixture in the mud discharging cavity 402 flows to the cleaning disc 5, the muddy water mixture can impact the ceramic blades 52 and the ceramic base disc 51, so that the ceramic base disc 51 rotates, when the ceramic base disc 51 rotates, the cleaning column 53 is driven to rotate outside the water inlet part 401, the space outside the water inlet part 401 can be cleaned, and if foreign matters such as waterweeds are accumulated in the water inlet part 401, the cleaning column can be cleaned, so that the water inlet part 401 is ensured not to be blocked.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a prevent that silt blocks up immersible pump for well which characterized in that: the pump comprises a pump shaft (1) installed on a motor, wherein at least two impellers (2) are fixedly connected to the pump shaft (1), a pump shell (3) is arranged on the outer side of each impeller (2), an upper pump shell (6) is installed on the pump shell (3) at the uppermost position, a water inlet pump shell (4) is installed on the pump shell (3) at the lowermost position, a supporting blade (31) is arranged on the inner wall of the pump shell (3), a converging blade (33) located on the drainage side of each impeller (2) is arranged in the pump shell (3), an elastic flow guide sleeve (32) partially extending on the inner wall of each impeller (2) is arranged between the supporting blade (31) and the converging blade (33), the elastic flow guide sleeve is located on the inner side of the elastic flow guide sleeve (32), a pump water channel (101) is formed on the inner side of each impeller (2) and the side of the converging blade (33), and the pump shell (3, a sludge discharge channel (102) is formed along the outer sides of the elastic flow guide sleeve (32) and the impeller (2), and a sludge discharge cavity (402) communicated with the sludge discharge channel (102) is arranged on the water inlet pump shell (4).
2. The submersible pump for wells according to claim 1, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: impeller (2) are including pumping blade (21), kuppe (23) and awl seat (24), be equipped with on awl seat (24) and install shaft hole (241) on pump shaft (1), kuppe (23) are located the outside of awl seat (24), pumping blade (21) are centrosymmetric's distribution and are in awl seat (24) with between kuppe (23), the outer wall of kuppe (23) still is equipped with row husky blade (22), arrange husky blade (22) with the slope opposite direction of pumping blade (21).
3. The submersible pump for wells according to claim 2, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: the drainage end of the water pumping blade (21) is close to the inner wall of the guide cover (23) is provided with an avoiding groove (211), and the elastic guide sleeve (32) extends into the avoiding groove (211).
4. The submersible pump for wells according to claim 1, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: support blade (31) and be close to one side of elasticity water conservancy diversion cover (32) is equipped with deformation recess (311), elasticity water conservancy diversion cover (32) is the elasticity material, the both sides of deformation recess (311) do respectively the first connecting portion and the second connecting portion of elasticity water conservancy diversion cover (32), the first connecting portion, the second connecting portion of elasticity water conservancy diversion cover (32) all with support blade (31), converge blade (33) fixed connection, elasticity water conservancy diversion cover (32) are close to the one end of impeller (2) is equipped with end (321), end (321) with form row mud clearance (301) between impeller (2).
5. The submersible pump for wells according to claim 4, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: elasticity water conservancy diversion cover (32) are the rubber material, it is steel sheet (322) that central symmetry distributes to inlay a plurality of in elasticity water conservancy diversion cover (32), steel sheet (322) certainly the intermediate position department of deformation recess (311) extends to the tip of end (321).
6. The submersible pump for wells according to claim 5, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: the steel sheet (322) is in the length ratio of second connecting portion both sides is 3 ~ 4: 1.
7. the submersible pump for wells according to claim 1, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: the pump is characterized in that a support (61) used for supporting the pump shaft (1) is arranged on the inner side of the upper pump shell (6), a tail end impeller (62) fixedly connected with the pump shaft (1) is further arranged on the inner wall of the upper pump shell (6), and blades (63) are arranged on the inner wall of the tail end impeller (62).
8. The submersible pump for wells according to claim 1, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: the water inlet pump shell (4) is further provided with water inlet portions (401) communicated with the pump water channel (101), the number of the water inlet portions (401) and the number of the sludge discharge cavities (402) are two, the water inlet portions (401) are symmetrically distributed, the sludge discharge cavities (402) are symmetrically distributed, and outlets of the sludge discharge cavities (402) are located below the water inlet portions (401).
9. The submersible pump for wells according to claim 8, wherein the submersible pump is capable of preventing mud blockage, and is characterized in that: the export of row's mud chamber (402) sets up the outside ring channel of opening, the inside of ring channel is equipped with cleans dish (5), clean dish (5) including ceramic chassis (51), ceramic blade (52) and clean post (53), be fixed with a plurality of on ceramic chassis (51) and be central symmetric distribution ceramic blade (52), just still be fixed with vertical arrangement on ceramic chassis (51) clean post (53).
10. The submersible pump for wells according to claim 9, wherein the submersible pump is adapted to prevent blockage by sludge, and further comprises: the height of the cleaning column (53) is the same as that of the water inlet part (401), and a flow guide part (511) extending upwards is arranged on the inner side of the ceramic chassis (51).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010876387.2A CN111963452B (en) | 2020-08-27 | 2020-08-27 | Prevent well immersible pump that silt blockked up |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010876387.2A CN111963452B (en) | 2020-08-27 | 2020-08-27 | Prevent well immersible pump that silt blockked up |
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| CN111963452A true CN111963452A (en) | 2020-11-20 |
| CN111963452B CN111963452B (en) | 2021-10-26 |
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| CN113323883A (en) * | 2021-06-25 | 2021-08-31 | 刘龙 | Self-blockage-cleaning type sewage pump based on flexible pump body |
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| CN111963452B (en) | 2021-10-26 |
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Denomination of invention: A submersible pump for preventing mud blockage in wells Effective date of registration: 20231010 Granted publication date: 20211026 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wenling branch Pledgor: Zhejiang Dongyin Technology Co.,Ltd. Registration number: Y2023330002275 |