CN118442326B - Mining submersible sand pump with long service life - Google Patents
Mining submersible sand pump with long service lifeInfo
- Publication number
- CN118442326B CN118442326B CN202410387263.6A CN202410387263A CN118442326B CN 118442326 B CN118442326 B CN 118442326B CN 202410387263 A CN202410387263 A CN 202410387263A CN 118442326 B CN118442326 B CN 118442326B
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- CN
- China
- Prior art keywords
- wall
- fixed
- pump body
- pump
- connecting seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
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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
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
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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
- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of submersible sand discharging pumps, in particular to a mining submersible sand discharging pump with long service life, which comprises a pump body, wherein a first impeller is arranged in the pump body, a connecting seat is fixed at the top of the pump body, a motor for driving the first impeller to rotate is fixed at the top of the connecting seat, a sealing seat is arranged at the top of the pump body, sediment accumulated below the sealing seat can be thrown out by rotating an arc plate through the arrangement of a sand throwing disc, reduce the direct contact of silt and sealing connection department of sealing seat and dwang to be favorable to preventing that silt from penetrating into buffer space's inside from sealing connection department of sealing seat and dwang, form first protection barrier, the arc still is used for promoting the top removal of silt at the screen cloth at rotatory in-process, can break up the large granule silt that condenses the production through the mesh of screen cloth, thereby be favorable to reducing the wearing and tearing of silt to the pump body inner wall.
Description
Technical Field
The invention relates to the technical field of submersible sand pump, in particular to a mining submersible sand pump with long service life.
Background
The mining submersible pump is mainly used for central pump house drainage of a coal mine, emergency drainage after a coal mine is flooded with water or mine-restoring drainage, and is commonly used as a centrifugal water pump. The mining submersible pump is commonly provided with D-type, DA-type and TSW-type multistage centrifugal water pumps, while the bottom water pit and mining area partial drainage is commonly provided with B-type, BA-type and BZ-type single-stage centrifugal water pumps, and the mining submersible pump is also provided with multistage centrifugal water pumps for higher lift.
The utility model discloses a mining submerged sand discharge electric pump, which relates to the technical field of sand discharge electric pumps, and comprises a sand discharge pump body, wherein a sand discharge pipe is arranged at the upper end of the sand discharge pump body, a main shaft is arranged in the sand discharge pump body, a crushing device is connected with the main shaft in a transmission way, and an adjusting seat is fixedly connected with the outside of the sand discharge pump body.
In the mining process, a large amount of groundwater, surface water, mine water, etc. is usually generated, and these amounts of water are large and contain a certain amount of silt impurities. In order to ensure safe production of mines, accumulated water is effectively discharged in time, sediment in water can infiltrate into the joint of the sealing seat and the motor rotating shaft in the process of using the submersible sediment discharge pump to discharge water, so that the sealing seat is damaged, and then the sediment and water are contacted with the motor, so that the motor is damaged, and meanwhile, the submersible sediment discharge pump can be subjected to huge vibration and is washed by sewage carrying hard particles in use, so that the surface materials of the overflow parts are seriously worn, and the service life of the pump is reduced.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, sediment in water can infiltrate into the joint of a sealing seat and a motor rotating shaft in the process of using a submersible sediment discharge pump to cause damage to the sealing seat, so that the sediment and water are contacted with the motor to cause damage to the motor, and meanwhile, the submersible sediment discharge pump can be subjected to huge vibration and is washed by sewage carrying hard particles in use, so that the surface materials of a overflow part are seriously worn, and the service life of the pump is reduced.
In order to achieve the purpose, the mining submersible sand discharge pump with the long service life comprises a pump body, wherein a first impeller is arranged in the pump body, a connecting seat is fixed at the top of the pump body, a motor for driving the first impeller to rotate is fixed at the top of the connecting seat, a sealing seat is arranged at the top of the pump body and used for blocking sediment in the pump body from entering an inner space of the connecting seat, a sand throwing disc is arranged in the pump body and used for throwing sediment nearby the sealing seat out, direct contact between the sediment and the sealing seat is prevented, a sand discharge assembly is arranged in the connecting seat and used for discharging the sediment on the inner wall of the sealing seat into the pump body.
In a further embodiment, the top of the pump body is fixed with a pump cover, the top of the pump cover is fixed with a sealing seat, the output shaft of the motor is fixed with a rotating rod, one end of the rotating rod, which is far away from the motor, is positioned in the pump body, the first impeller is fixedly connected to the outer wall of the rotating rod, and the sealing seat is in rotary sealing connection with the outer wall of the rotating rod.
In a further embodiment, the sand slinger comprises a fixed ring, the fixed ring is fixed on the outer wall of the rotating rod, a plurality of arc plates are fixed on the outer wall of the fixed ring in a circumferential array manner, a plurality of connecting blocks are fixed on the inner wall of the pump cover in a circumferential array manner, a screen is fixed on all the connecting blocks together, the screen is connected with the outer wall of the rotating rod in a rotating manner, the top of the screen is abutted to the bottom of the arc plates, and the top of the arc plates are abutted to the bottom of the sealing seat.
In a further embodiment, a plurality of L-shaped rods are fixed on the bottom circumference array of the screen, straight rods are symmetrically fixed on the outer wall of the rotating rod, and buffer blocks are fixed at the end parts of the two straight rods.
In a further embodiment, the sand discharging component comprises a groove, the groove is formed in the top of the connecting seat, an air bag is fixed in the groove, an air inlet pipe is fixed on the outer side wall of the connecting seat, an air outlet end of the air inlet pipe penetrates through the outer wall of the connecting seat and is fixedly communicated with the inner portion of the air bag, an air outlet is formed in the inner wall of the connecting seat, the air outlet is fixedly communicated with the inner portion of the air bag, a first pressure relief valve is arranged in the air outlet, an air outlet pipe is fixedly communicated with the inner wall of the connecting seat, and a second pressure relief valve is arranged in the air outlet pipe.
In a further embodiment, the outer wall of the rotating rod is fixed with a second impeller, the side wall of the connecting seat is internally provided with a cavity, the bottom circumference array of the cavity is provided with a plurality of first openings, the first openings are communicated with the inner space of the connecting seat, the side wall of the cavity is provided with a plurality of second openings in a circumference array, and the second openings are communicated with the inner space of the connecting seat.
In a further embodiment, a first circular ring is fixed on the outer wall of the motor, a cavity is formed in the first circular ring, the air outlet end of the air outlet pipe penetrates through the bottom side wall of the first circular ring and is fixedly communicated with the inside of the cavity, a plurality of air outlet holes are formed in the top circumference array of the first circular ring, and one-way valves are arranged in all the air outlet holes.
In a further embodiment, the second ring is fixed on the outer wall of the motor, one end of the air inlet pipe, which is far away from the air bag, sequentially penetrates through the first ring and the second ring, and the inner side wall of the first ring is fixedly connected with the outer wall of the connecting seat.
In a further embodiment, the bottom of the pump body is provided with a feed inlet, one side of the pump body is fixed with a discharge pipe, one end of the discharge pipe is provided with a discharge outlet, the inner wall of the pump body is provided with a communication port, and the discharge pipe is communicated with the inside of the pump body through the communication port.
In a further embodiment, the bottom end of the rotating rod is fixed with a round rod, a plurality of stirring rods are fixed on the outer wall of the round rod in a circumferential array mode, a disc is fixed on the inner wall of the feeding hole and is rotationally connected with the round rod, a plurality of holes are formed in the top of the disc in a penetrating mode, and the disc is located above the stirring rods.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, through the arrangement of the sand throwing disc, in the process that the rotating rod drives the first impeller to rotate to pump water, the rotating rod also drives the fixed ring to rotate so as to drive the arc plate to rotate, and the arc plate can rotate to throw out sediment accumulated below the sealing seat, so that direct contact between the sediment and the sealing joint of the sealing seat and the rotating rod is reduced, and the sediment is prevented from penetrating into the buffer space from the sealing joint of the sealing seat and the rotating rod, so that a first protective barrier is formed, the arc plate is also used for pushing the sediment to move at the top of the screen in the rotating process, and large-particle sediment generated by condensation can be scattered through meshes of the screen, so that abrasion of the sediment to the inner wall of the pump body is reduced.
2. According to the invention, through the arrangement of the second impeller, the rotating rod drives the second impeller to rotate, the second impeller rotates to enable the gas in the buffer space to circularly flow, heat dissipation of the motor rotating shaft is facilitated, and the top-down airflow generated by the rotation of the second impeller is also used for blowing sediment permeated into the buffer space to the bottom of the buffer space, so that the sediment is prevented from contacting with the motor rotating shaft, and a second protective barrier is formed by the motor.
3. According to the invention, through the arrangement of the sand discharging assembly, air flow enters the air bag from the air inlet pipe, the tightness between the motor and the connecting seat is improved by expanding the air bag, then the air flow passes through the first pressure relief valve from the air outlet and enters the buffer space, the air pressure in the buffer space is increased by entering the air flow, the air pressure in the buffer space is increased, the air pressure in the buffer space is favorable for preventing external silt and water from penetrating into the buffer space from gaps at the connecting position, the tightness of the buffer space is further improved, the air flow can flow from top to bottom in the buffer space, the circulating flow of the air flow in the buffer space is promoted, the heat dissipation of a motor rotating shaft is facilitated, the air flow passes through the second pressure relief valve and is discharged into the first circular ring, and then the air flow generated by discharging the air flow can dissipate the heat of the shell of the motor.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a structural cross-sectional view of the pump body of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present invention;
FIG. 4 is a cross-sectional view of the structure of the coupling seat of the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 4B in accordance with the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 4C in accordance with the present invention;
FIG. 7 is a cross-sectional view of the internal structure of the pump body of the present invention;
fig. 8 is an enlarged view of the structure of fig. 7D according to the present invention.
The device comprises a motor, a rotating rod, a connecting seat, a pump body, a 5, a feed inlet, a 6, a discharge outlet, a 7, a communication port, a 8, a sealing seat, a 9, a pump cover, a 10, a first impeller, a 11, a disc, a 12, an opening, a 13, a round rod, a 14, a stirring rod, a 15, a fixed ring, a 16, an arc-shaped plate, a 17, a screen, a 18, an L-shaped rod, a 19, a straight rod, a20, a buffer block, a 21, a second impeller, a 22, a cavity, a 23, a first opening, a 24, a second opening, a 25, an air inlet, a 26, an air bag, a 27, an air outlet, a 28, a first pressure relief valve, a 29, an air outlet pipe, a 30, a second pressure relief valve, a 31, a first circular ring, a 32, a second circular ring, a 33 and a one-way valve.
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 mining submersible sand pump with long service life comprises a pump body 4, a first impeller 10 is arranged in the pump body 4, a connecting seat 3 is fixed at the top of the pump body 4, a motor 1 for driving the first impeller 10 to rotate is fixed at the top of the connecting seat 3, a sealing seat 8 is arranged at the top of the pump body 4, the sealing seat 8 is used for blocking sediment inside the pump body 4 from entering an inner space of the connecting seat 3, a sand throwing disc is arranged inside the pump body 4 and used for throwing sediment nearby the sealing seat 8 out, sediment is prevented from being in direct contact with the sealing seat 8, a sand discharging assembly is arranged inside the connecting seat 3 and used for discharging sediment on the inner wall of the sealing seat 8 into the pump body 4.
In a specific implementation process, the sand throwing disc is arranged at the bottom of the sealing seat 8, the bottom of the sealing seat 8 can be cleaned, and epoxy silicon carbide and polyurethane rubber are sprayed on the inner wall of the pump body 4 for enhancing the wear resistance and prolonging the service life of the pump body 4.
The mining submersible sand pump is used for conveying mixed sewage containing solid particles such as sediment, slag particles, fibers and the like, and the pump can be washed by sewage which is subjected to huge vibration and carries hard particles when in use, so that the surface materials of the overflow parts are seriously worn.
Specifically, because in the process of using the submersible sand pump to drain, sediment in water can permeate into the joint of the sealing seat 8 and the rotating shaft of the motor 1, the sealing seat 8 is damaged, and then the sediment and the water are contacted with the motor 1, so that the motor 1 is damaged, and meanwhile, the submersible sand pump can be subjected to huge vibration and washed by sewage carrying hard particles when in use, so that the surface materials of the overflow parts are seriously worn, and the service life of the pump is reduced.
The embodiment of the invention can solve the problems, and the specific implementation manner is that firstly, a worker places the submersible sand pump in sewage in a mine, then starts the motor 1 to drive the first impeller 10 to rotate, pumps out the sewage, can clean the bottom of the sealing seat 8 through the sand throwing disc, throws out sediment at the bottom of the sealing seat 8, prevents the sediment from contacting with the sealing position of the sealing seat 8, and is beneficial to reducing damage of the sediment to the sealing seat 8, and meanwhile, larger sediment particles condensed together can be scattered in the process of throwing out the sediment by the sand throwing disc, so that abrasion of large-particle sediment to the inner wall of the pump body 4 can be reduced, and the service life of the pump body 4 is prolonged.
The sediment removal subassembly that is equipped with can increase the inside atmospheric pressure of connecting seat 3, is favorable to blockking silt from entering into the inside of connecting seat 3 in the gap of sealing seat 8 under the effect of high pressure, under the thrust effect that high atmospheric pressure produced, can push the silt that permeates into the gap of sealing seat 8 into the inside of pump body 4, has further increased sealing seat 8, is favorable to preventing that silt from entering into the inside of connecting seat 3 from causing the condition emergence of damage to motor 1.
In a further implementation process, the top of the pump body 4 is fixed with a pump cover 9, the top of the pump cover 9 is fixed with a sealing seat 8, an output shaft of the motor 1 is fixed with a rotating rod 2, one end of the rotating rod 2 away from the motor 1 is located inside the pump body 4, a first impeller 10 is fixedly connected to the outer wall of the rotating rod 2, and the sealing seat 8 is in rotary sealing connection with the outer wall of the rotating rod 2.
In a specific implementation process, epoxy silicon carbide and polyurethane rubber are sprayed on the inner walls of the pump body 4 and the pump cover 9 to enhance wear resistance.
The rotary seal is one of the dynamic seals, which is not described in the prior art.
Specifically stated, the motor 1 starts to drive the rotating rod 2 to rotate, the rotating rod 2 drives the first impeller 10 to rotate so as to suck sewage, in the process of the rotation of the first impeller 10, sediment can be filled between the top side wall of the first impeller 10 and the bottom side wall of the pump cover 9, sediment is filled between the bottom of the first impeller 10 and the inner wall of the pump body 4, abrasion suffered by the two parts is serious, and the abrasion resistance of the inner walls of the pump body 4 and the pump cover 9 can be improved by spraying epoxy silicon carbide and polyurethane rubber on the inner walls of the pump body 4 and the pump cover 9, so that the service life of the device is prolonged, and the provided sand throwing disc can prevent the sediment from entering into the sealing connection part of the sealing seat 8 and the rotating rod 2, so that the sediment is prevented from entering into the interior of the connecting seat 3.
In a further implementation process, the sand throwing disc comprises a fixing ring 15, the fixing ring 15 is fixed on the outer wall of the rotating rod 2, a plurality of arc plates 16 are fixed on the outer wall of the fixing ring 15 in a circumferential array mode, a plurality of connecting blocks are fixed on the inner wall of the pump cover 9 in a circumferential array mode, a screen 17 is fixed on all the connecting blocks together, the screen 17 is connected with the outer wall of the rotating rod 2 in a rotating mode, the top of the screen 17 is abutted to the bottom of the arc plates 16, and the top of the arc plates 16 are abutted to the bottom of the sealing seat 8.
Specifically stated, the motor 1 rotates to drive the rotating rod 2 to rotate, the rotating rod 2 drives the fixed ring 15 to rotate, the fixed ring 15 drives the plurality of arc plates 16 to synchronously rotate, the arc plates 16 push the silt at the bottom of the sealing seat 8 to the periphery in the rotating process, and the silt entering the bottom of the sealing seat 8 can be thrown out in the high-speed rotating process of the arc plates 16, so that the contact between the sealing joint of the sealing seat 8 and the rotating rod 2 and the silt is reduced, and the damage of the silt to the sealing seat 8 is reduced.
The arc 16 is at rotatory in-process, and the bottom of arc 16 and the top contact of screen cloth 17, and arc 16 promotes silt and removes at the top of screen cloth 17, can break up the silt that produces the large granule to the condensation through screen cloth 17, is favorable to reducing the wearing and tearing that silt produced the pump body 4 inner wall at the in-process that the pump body 4 inside removed.
In a further implementation process, a plurality of L-shaped rods 18 are fixed on the bottom circumferential array of the screen 17, straight rods 19 are symmetrically fixed on the outer wall of the rotating rod 2, and buffer blocks 20 are fixed at the end parts of the two straight rods 19.
In a specific implementation process, the cross bar end of the L-shaped bar 18 is located below the straight bar 19, and the cross bar end of the L-shaped bar 18 is in contact with the straight bar 19.
Specifically, the rotating rod 2 drives the two straight rods 19 to synchronously rotate, the two straight rods 19 respectively drive the corresponding buffer blocks 20 to rotate, in the process of rotating the two straight rods 19, the buffer blocks 20 are mutually abutted against the end parts of the transverse rods of the L-shaped rods 18, the L-shaped rods 18 are driven to move downwards, the L-shaped rods 18 move downwards to drive the screen 17 to be concave, after the buffer blocks 20 are separated from the L-shaped rods 18, the screen 17 resets to drive the L-shaped rods 18 to move upwards to reset, and sediment blocked in meshes of the screen 17 can be shaken off through reciprocating vibration of the screen 17, so that the effect of cleaning meshes of the screen 17 is achieved.
In the process that the screen 17 rebounds from concave state down, the screen 17 can extrude the silt that is located screen 17 top and the bottom of arc 16, and the bottom of arc 16 can make silt pass the mesh of screen 17 with silt extrusion, is favorable to breaking up the bigger silt of granule into less granule, has further reduced the wearing and tearing of silt to the pump body 4 inner wall.
In a further implementation process, the sand discharging assembly comprises a groove, the groove is formed in the top of the connecting seat 3, an air bag 26 is fixed in the groove, an air inlet pipe 25 is fixed on the outer side wall of the connecting seat 3, an air outlet end of the air inlet pipe 25 penetrates through the outer wall of the connecting seat 3 and is fixedly communicated with the inner portion of the air bag 26, an air outlet 27 is formed in the inner wall of the connecting seat 3, the air outlet 27 is fixedly communicated with the inner portion of the air bag 26, a first pressure relief valve 28 is arranged in the air outlet 27, an air outlet pipe 29 is fixedly communicated with the inner wall of the connecting seat 3, and a second pressure relief valve 30 is arranged in the air outlet pipe 29.
In a specific implementation process, the air inlet end of the air inlet pipe 25 is fixedly communicated with an external air pump, the top of the connecting seat 3 is fixedly connected with the outer wall of the motor 1, the side wall of the air bag 26 extends out of the groove and is in contact with the side wall of the motor 1, and the air outlet end of the air outlet pipe 29 is positioned outside the motor 1.
The connecting seat 3 is in sealing connection with the motor 1, the connecting seat 3 is in sealing connection with the pump body 4, the pump body 4 is in sealing connection with the pump cover 9, the pump cover 9 is in sealing connection with the sealing seat 8, the sealing seat 8 is in rotary sealing connection with the rotating rod 2, and a buffer space is formed among the connecting seat 3, the motor 1, the pump cover 9 and the sealing seat 8.
Specifically, the air pump inflates the air inlet pipe 25, the air flow enters the air bag 26 from the air outlet end of the air inlet pipe 25, and the air pressure in the air bag 26 is increased to expand the air bag 26, so that the air bag 26 is tightly abutted against the motor 1, and the tightness between the connecting seat 3 and the motor 1 is improved.
After the air pressure in the air bag 26 is larger than the set value of the first pressure relief valve 28, the air flow passes through the air outlet 27 from the air bag 26 and enters the buffer space, so that the air pressure in the buffer space is increased, the air in the buffer space has a trend of outwards moving under the action of high air pressure, and the air flow can blow towards the inside of the pump body 4 along the gap between the sealing seat 8 and the rotating rod 2, so that sediment permeated into the gap between the sealing seat 8 and the rotating rod 2 can be blown into the inside of the pump body 4, the sediment is further prevented from entering the buffer space, and meanwhile, after the air pressure in the buffer space is increased, the air flow can prevent external water from permeating into the buffer space from the gap, so that the tightness between the motor 1 and the connecting seat 3 is further improved.
The air flow forms top-down air flow in the buffer space, which is favorable for heat dissipation of the bearing of the motor 1, after the air pressure in the buffer space is larger than the set value of the second pressure relief valve 30, the air is discharged from the air outlet end of the air outlet pipe 29, and the discharged air can drive water flow near the shell of the motor 1 to flow, so that the heat dissipation of the water flow to the shell of the motor 1 can be accelerated.
In a further implementation process, the outer wall of the rotating rod 2 is fixed with a second impeller 21, a cavity 22 is formed in the side wall of the connecting seat 3, a plurality of first openings 23 are formed in the bottom circumference array of the cavity 22, the first openings 23 are communicated with the inner space of the connecting seat 3, a plurality of second openings 24 are formed in the side wall of the cavity 22 in a circumference array, and the second openings 24 are communicated with the inner space of the connecting seat 3.
In a specific implementation, the second impeller 21 is located inside the buffer space.
Specifically, the rotation rod 2 rotates to drive the second impeller 21 to rotate, the second impeller 21 can push the air flow to move from top to bottom, the speed of the air flow moving from top to bottom is increased, the air below the second impeller 21 passes through the first opening 23 to enter the cavity 22, and then returns to the buffer space above the second impeller 21 from the second opening 24, and heat dissipation to the bearing of the motor 1 is accelerated through the circulation flow of the air flow.
The air current that the rotation of second impeller 21 produced can make the partial silt that enters into in the buffer space move downwards to be in the bottom of buffer space all the time, form the second and protect the barrier, avoid silt and motor 1 to contact the condition emergence that causes motor 1 to damage.
In a further implementation process, a first circular ring 31 is fixed on the outer wall of the motor 1, a cavity is formed in the first circular ring 31, the air outlet end of the air outlet pipe 29 penetrates through the bottom side wall of the first circular ring 31 and is fixedly communicated with the inside of the cavity, a plurality of air outlet holes are formed in the top circumferential array of the first circular ring 31, and one-way valves 33 are arranged in all the air outlet holes.
In a specific implementation process, all the exhaust hole circumferential arrays are distributed on the outer ring of the motor 1, through the provided check valve 33, air flow can pass through the exhaust holes from the inside of the first ring 31 to the outside, and external water flow cannot pass through the check valve 33 to enter the inside of the first ring 31.
Specifically, the air flow discharged from the air outlet pipe 29 enters the inner chamber of the first ring 31, and is then discharged to the outside along the plurality of air outlets formed at the top of the first ring 31, and the air flow is discharged to cause the water flow, so that the housing of the motor 1 is flushed, the heat dissipation of the motor 1 is accelerated, and the heat dissipation of the outer wall of the motor 1 is sufficiently and uniformly facilitated through the plurality of air outlets.
In a further implementation process, the second circular ring 32 is fixed on the outer wall of the motor 1, one end, far away from the air bag 26, of the air inlet pipe 25 sequentially penetrates through the first circular ring 31 and the second circular ring 32, and the inner side wall of the first circular ring 31 is fixedly connected with the outer wall of the connecting seat 3.
In a specific implementation process, the air inlet pipe 25 penetrates the first ring 31 and the second ring 32 and is fixedly connected with the first ring 31 and the second ring 32.
Specifically stated, through the second ring 32 that is equipped with, after this dive sediment removal pump takes place to incline at the submarine, first ring 31 and second ring 32 can play the effect of support to prevent dive sediment removal pump and sink into silt, and then lead to the not good condition of motor 1 heat dissipation to take place, first ring 31, second ring 32 and the outer wall of pump body 4 can carry out horizontal support to this dive sediment removal pump.
The first circular ring 31 and the second circular ring 32 have a fixing effect on the air inlet pipe 25, and are beneficial to preventing the connection part of the air inlet pipe 25 and the connecting seat 3 from loosening.
The upper half part of the inner side wall of the first circular ring 31 is fixedly connected with the outer wall of the motor 1, and the lower half part of the inner side wall of the first circular ring 31 is fixedly connected with the outer wall of the connecting seat 3, so that the first circular ring 31 can play a role in sealing the connecting position of the motor 1 and the connecting seat 3, and the tightness between the motor 1 and the connecting seat 3 is further enhanced.
In a further implementation process, the bottom of the pump body 4 is provided with a feed inlet 5, one side of the pump body 4 is fixed with a discharge pipe, one end of the discharge pipe is provided with a discharge outlet 6, the inner wall of the pump body 4 is provided with a communication port 7, and the discharge pipe is communicated with the inside of the pump body 4 through the communication port 7.
Specifically, the first impeller 10 drives sewage to enter the pump body 4 from the feed inlet 5 in the rotation process, the sewage enters the discharge pipe from the communication port 7 through the conveying of the first impeller 10, and finally enters the externally connected conveying pipe from the discharge port 6 to convey the sewage to a designated position.
In a further implementation process, the bottom end of the rotating rod 2 is fixed with a round rod 13, a plurality of stirring rods 14 are fixed on the outer wall of the round rod 13 in a circumferential array manner, a disc 11 is fixed on the inner wall of the feed inlet 5, the disc 11 is rotationally connected with the round rod 13, a plurality of holes 12 are formed in the top of the disc 11 in a penetrating manner, and the disc 11 is located above the stirring rods 14.
Since the sewage contains large stones, weeds, and other impurities, clogging of the interior of the pump body 4 and increased wear of the pump body 4 are likely to occur.
Specifically stated, in the process that the first impeller 10 rotates to pump sewage from the feed inlet 5 to the pump body 4, the dwang 2 drives the round bar 13 and rotates, the round bar 13 drives a plurality of puddlers 14 and rotates in step, can break up great impurity particles, thereby be favorable to reducing the wearing and tearing to the pump body 4, through the disc 11 that is equipped with, can filter the stone that the volume is great, block that bulky impurity particles enter into the inside of the pump body 4, puddler 14 is in the in-process that the rotatory big granule impurity of breaking up, still be used for getting rid of the impurity of piling up the jam in the disc 11 bottom, prevent big granule impurity from blocking up trompil 12 on the disc 11.
The working principle of the invention is as follows:
When the invention is used, firstly, a worker starts the motor 1 to drive the rotating rod 2 to rotate, the rotating rod 2 drives the first impeller 10 to rotate so as to pump the sewage at the water bottom into the pump body 4, then the sewage enters the conveying pipe from the discharge hole 6 to be conveyed to a designated position, the rotating rod 2 drives the round rod 13 to rotate in the feed hole 5, the round rod 13 drives the stirring rod 14 to rotate, so that large-particle sediment impurities can be scattered, the large-particle sediment impurities are prevented from entering the inside of the pump body 4 to generate larger abrasion on the pump body 4, and meanwhile, the stirring rod 14 can throw away the impurities at the disc 11 to prevent the holes 12 on the disc 11 from being blocked.
In the process that dwang 2 drives first impeller 10 and rotates to draw water, dwang 2 still drives solid fixed ring 15 and rotates and then drive arc 16 rotation, arc 16 rotation can be with piling up the silt of sealing seat 8 below and throw away, reduce the direct contact of silt and sealing seat 8 and dwang 2 sealing connection department, thereby be favorable to preventing silt from sealing seat 8 and dwang 2 sealing connection department infiltration to buffer space's inside, form first protection barrier, external air pump is inflated to buffer space's inside through intake pipe 25, make buffer space inside atmospheric pressure rise, buffer space inside gaseous under the effect of high atmospheric pressure is along sealing seat 8 and dwang 2 sealing connection department to the inside of pump body 4 flow, can blow out the silt that infiltrates sealing seat 8 and dwang 2 sealing connection department, further prevent silt from entering buffer space's inside from sealing seat 8 and dwang 2 sealing connection department, and then can prevent that silt from producing the damage to sealing seat 8.
The arc 16 still is used for promoting the top removal of silt at screen cloth 17 at rotatory in-process, and the mesh through screen cloth 17 can break up the large granule silt that produces that condenses to be favorable to reducing the wearing and tearing of silt to the pump body 4 inner wall, arc 16 can also strike off the silt that is stained with in sealing seat 8 bottom, is favorable to alleviateing the corruption that silt produced sealing seat 8.
The rotating rod 2 drives the straight rod 19 to rotate, the straight rod 19 pushes the L-shaped rod 18 to move in the rotating process, so that vibration is generated on the screen cloth 17, the reciprocating vibration of the screen cloth 17 can shake off sediment blocked in meshes of the screen cloth 17, dredging of the meshes of the screen cloth 17 is facilitated, meanwhile, the sediment at the top of the screen cloth 17 and the bottom of the arc plate 16 are extruded in the process that the screen cloth 17 is restored to a horizontal state from a concave state, sediment particles pass through the meshes under the extrusion of the arc plate 16, the scattering effect on the sediment particles is achieved, scattering of sediment with large particles is further promoted, and abrasion of sediment to the inner wall of the pump body 4 is facilitated to be reduced.
The rotating rod 2 drives the second impeller 21 to rotate, the second impeller 21 rotates to enable gas in the buffer space to circularly flow, heat dissipation is facilitated to the rotating shaft of the motor 1, and top-down airflow generated by rotation of the second impeller 21 is also used for blowing sediment permeated into the buffer space to the bottom of the buffer space, so that contact between the sediment and the rotating shaft of the motor 1 is prevented, and the motor 1 is facilitated to form a second protection barrier.
Through the setting of sediment removal subassembly, the air current enters into the inside of gasbag 26 from intake pipe 25, the leakproofness between motor 1 and the hookup seat 3 has been increased in the gasbag 26 inflation, then the air current passes first relief valve 28 from gas outlet 27 and enters into the buffer space, the air pressure in the buffer space is risen in the entering of air current, the inside air pressure in buffer space is risen back and is favorable to preventing outside silt and water from the gap infiltration of junction to the inside of buffer space, the leakproofness of buffer space has further been improved, the entering of air current can also promote the inside top-down flow of gas in buffer space, the circulation flow of air current in buffer space has been accelerated, be favorable to dispelling the heat to motor 1 pivot, the air current passes the inside of second relief valve 30 discharge to first ring 31, from the outside of first ring 31 again, the rivers flow that the air current discharge produced can dispel the heat to motor 1's shell.
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 embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410387263.6A CN118442326B (en) | 2024-04-01 | 2024-04-01 | Mining submersible sand pump with long service life |
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| CN202410387263.6A CN118442326B (en) | 2024-04-01 | 2024-04-01 | Mining submersible sand pump with long service life |
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| CN118442326B true CN118442326B (en) | 2025-10-17 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203532309U (en) * | 2013-09-22 | 2014-04-09 | 上海阿波罗机械股份有限公司 | Low pressure safety-injection pump |
| CN110513301A (en) * | 2019-09-09 | 2019-11-29 | 山东五子星矿用设备股份有限公司 | A kind of high-efficiency abrasion-proof submersible sand discharging pump and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2863373C (en) * | 2014-09-12 | 2015-12-22 | Dalmatian Hunter Holdings Ltd. | Submersible disk-type pump for viscous and solids-laden fluids having helical inducer |
| CN208763910U (en) * | 2018-08-30 | 2019-04-19 | 天津天沐环保科技有限公司 | One kind having the function of lid arrangement after sand discharge submersible sewage pump seal chamber |
| CN220505441U (en) * | 2023-08-04 | 2024-02-20 | 上海庸嘉水务科技(集团)有限公司 | Submersible sewage pump with sand discharging function |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203532309U (en) * | 2013-09-22 | 2014-04-09 | 上海阿波罗机械股份有限公司 | Low pressure safety-injection pump |
| CN110513301A (en) * | 2019-09-09 | 2019-11-29 | 山东五子星矿用设备股份有限公司 | A kind of high-efficiency abrasion-proof submersible sand discharging pump and method |
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