CN114427536A - Deep well pump capable of reducing starting water resistance - Google Patents
Deep well pump capable of reducing starting water resistance Download PDFInfo
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- CN114427536A CN114427536A CN202210081492.6A CN202210081492A CN114427536A CN 114427536 A CN114427536 A CN 114427536A CN 202210081492 A CN202210081492 A CN 202210081492A CN 114427536 A CN114427536 A CN 114427536A
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- water
- water filling
- contact
- well pump
- impeller
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 210000000225 synapse Anatomy 0.000 claims description 36
- 239000000110 cooling liquid Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 14
- 235000020681 well water Nutrition 0.000 claims description 12
- 239000002349 well water Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 description 11
- 238000005192 partition Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 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
- F04D9/00—Priming; Preventing vapour lock
-
- 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
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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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
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- 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
- F04D29/20—Mounting rotors on shafts
-
- 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
-
- 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
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/5886—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling by injection
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a deep-well pump capable of reducing starting water resistance, and belongs to the field of pumps. A deep well pump for reducing starting water resistance comprises a motor part, an impeller and a pumping part which are coaxially arranged, wherein the impeller has the capability of independently rotating relative to an output shaft of the motor part; the deep well pump also comprises a limiting module; the limiting module selectively connects the impeller with the output shaft in a follow-up manner; the impeller can be rotated in advance when the deep well pump is put into a well, and the starting water resistance of the motor is reduced.
Description
Technical Field
The invention belongs to the field of pumps, and particularly relates to a deep-well pump capable of reducing starting water resistance.
Background
The deep well pump is a pump which is immersed in an underground well to pump and convey water, and is widely applied to farmland drainage and irrigation, industrial and mining enterprises, urban water supply and drainage, sewage treatment and the like.
Because the deep well pump is arranged at the bottom of the well to pump water, the water pressure at the bottom of the well is higher, and when the deep well pump drives the impeller to rotate, larger water resistance needs to be overcome. Therefore, the service life of the output shaft and the impeller of the existing deep well pump is not long.
Disclosure of Invention
The invention aims to provide a deep well pump for reducing starting water resistance, which can realize that an impeller rotates in advance when the deep well pump is put into a water well, and reduce the starting water resistance of a motor.
The invention discloses a deep well pump capable of reducing starting water resistance, which comprises a motor part, an impeller and a water pumping part which are coaxially arranged, wherein the impeller has the capability of independently rotating relative to an output shaft of the motor part; the deep well pump also comprises a limiting module; the limiting module selectively connects the impeller with the output shaft in a follow-up manner.
As a further improvement of the invention, the limiting module comprises:
the shaft sleeve is fixedly sleeved on the outer side of the output shaft in the water pumping part; and the number of the first and second groups,
and the limiting synapse is positioned on the periphery of the shaft sleeve, corresponds to the position of the impeller in a matching way, and has the capacity of deforming or moving towards the impeller so as to selectively limit connection.
As a further improvement of the invention, a flow passage is arranged in the shaft sleeve, and the flow passage is filled with fluid; the deformation or movement of the limiting synapse is driven by fluid in the flow channel.
As a further improvement of the invention, the flow of the fluid in the flow channel is driven by the water filling assembly, and the start and stop of the water filling assembly are controlled by a motor in the motor part; the water filling assembly is activated only when the deep well pump is at the bottom of the well to discharge well water or cooling fluid in the motor portion into the flow passage.
As a further improvement of the invention, the water filling assembly comprises a water filling tank and a water filling wheel;
the output shaft penetrates through the water filling tank and keeps dynamic seal with the water filling tank;
the water filling tank is positioned in the motor part and is a fixing part, a water outlet of the water filling tank is communicated with the flow channel, and well water or cooling liquid is filled in the water filling tank;
the water filling wheel is positioned in the water filling tank and fixedly sleeved on the periphery of an output shaft in the motor part to rotate along with the output shaft, and the direction of water driven by the water filling wheel is towards a water outlet of the water filling tank.
As a further improvement of the invention, the limiting synapse comprises a contact body and a contact head;
the contact body is a pipe with deformation capacity, the deformation direction of the contact body is only along the self axial extension, and the contact body is fixedly arranged on the periphery of the shaft sleeve and communicated with the flow channel so as to drive the contact to be close to or far away from the shaft sleeve;
the contact is fixedly arranged at the opening end of the contact body, which is far away from the shaft sleeve, so as to be driven by the contact body to move and/or deform, and the deformation of the contact is self expansion or collapse;
the inner wall of the impeller is provided with an interface; when the contact moves into the interface or expands to be consistent with the interface caliber, the contact is in limit connection with the interface.
As a further improvement of the invention, the contact is a soft head made of an elastic film or a flexible film, and the soft head wraps the opening of the contact body far away from the shaft sleeve end; the diameter of the contact is smaller than the caliber of the interface in an unexpanded free state; the diameter of the contact is larger than the caliber of the interface in the expansion limit state.
As a further improvement of the invention, the contact comprises a hard steel ball and a soft protective sleeve; the protective sleeve is wrapped outside the steel ball and is fixedly connected with the touch body and seals the opening of the touch body far away from the shaft sleeve; the diameter of the protective sleeve is larger than or equal to the caliber of the interface in an uncompressed free state; the diameter of the passage for the protective sleeve to move into the interface is smaller than the diameter of the protective sleeve in the uncompressed free state.
As a further improvement of the invention, a plurality of pressure valves are arranged in the flow channel, the pressure valves are normally closed parts, and each pressure valve corresponds to one limiting synapse; the pressure valves are arranged in the flow direction of the fluid in the flow channel one by one, and each limiting synapse is arranged on the water outlet side of the corresponding pressure valve.
As a further improvement of the invention, the opening threshold value of each pressure valve is different, and the opening threshold values of the pressure valves are sequentially and linearly increased in the flowing direction of the fluid in the flow passage.
Compared with the prior art, the invention has the beneficial effects that:
the impeller is connected with the shaft sleeve by the bearing, so that the impeller has the capability of freely rotating with the shaft sleeve, when the deep-well pump is put into a water well, the impeller is slightly rotated by the rising of the water level in the water pumping part in the descending stage of the deep-well pump, and the impeller has a certain initial speed;
meanwhile, the periphery of the shaft sleeve is provided with a limiting synapse, the limiting synapse can move or expand after being driven by liquid in the flow channel and is clamped with the impeller, so that the output shaft drives the shaft sleeve, the shaft sleeve drives the limiting synapse, the limiting synapse drives the impeller, the output shaft can indirectly drive the impeller to rotate, and when the impeller is indirectly driven by the output shaft, the impeller already has a certain initial speed, so that the impeller has the advantages of small starting water resistance of the output shaft and long service life of the impeller and the output shaft;
in addition, the liquid in the flow channel is cooling liquid, the cooling liquid can be pumped from the motor shell through the water filling assembly, the water filling assembly is positioned in the motor shell, the starting of the water filling assembly is directly influenced by the starting of the output shaft, the cooling liquid can reduce the heat emitted when the impeller rotates, and the cooling liquid has beneficial influence on prolonging the service life of the impeller and the shaft sleeve;
in addition, the liquid in the flow channel can also be well water, the water filling assembly is positioned outside the motor shell, the space arrangement of the motor shell is compressed, the risk of water inflow of the motor shell is reduced, the use amount of cooling liquid is reduced, and the manufacturing cost is reduced;
in addition, a plurality of pressure valves are arranged in the flow channel, the number of the pressure valves is consistent with that of the limiting synapses, the pressure valves are all arranged on the lower side of the water inlets of the corresponding limiting synapses, namely, liquid in the flow channel can enter the corresponding limiting synapses through the pressure valves, the pressure valves are normally closed pieces, the opening threshold values of the pressure valves are different, the opening threshold values of the pressure valves which are positioned on the lower side of the flow channel are lower, namely, the water filling sequence of the limiting synapses is from bottom to top, the impeller is indirectly driven by the output shaft one by one, the resistance which is instantaneously received by the starting of the output shaft is further reduced, the resistance which is received by the output shaft is gradually increased, and the service life of the output shaft is prolonged.
Drawings
FIG. 1 is a perspective exploded view of a first embodiment of the present invention;
fig. 2 is a schematic perspective cross-sectional structure view of a motor part and an impeller according to a first embodiment of the present invention;
fig. 3 is a schematic perspective cross-sectional structural view of an impeller according to a first embodiment of the present invention;
FIG. 4 is a schematic perspective cross-sectional view of a partition according to a first embodiment of the present invention;
FIG. 5 is a schematic cross-sectional plan view of an impeller and a position-limiting synapse according to a first embodiment of the present disclosure;
FIG. 6 is a schematic diagram illustrating a fluid flow direction when the limiting synapse abuts an impeller;
fig. 7 is a schematic view illustrating a flow direction of liquid in a flow channel according to a second embodiment of the present invention.
The reference numbers in the figures illustrate:
the water pumping device comprises a motor part 1, a motor 10, a motor shell 11, a water filling assembly 12, an output shaft 13, a shaft sleeve 14, a flow channel 15, a limiting synapse 16, a pressure valve 17, an impeller 2, a chassis 20, blades 21, a wheel hole 22, a connecting groove 23, a partition plate 24 and a water pumping part 3.
Detailed Description
The first embodiment is as follows: referring to fig. 1-6, a deep well pump for reducing start-up water resistance includes a motor unit 1, an impeller 2 and a pumping unit 3, which are coaxially disposed.
The motor part 1 comprises a motor 10, a motor shell 11, a water filling assembly 12 and a shaft sleeve 14;
the motor 10 is fixedly arranged in the motor shell 11, cooling liquid is arranged in the motor shell 11, and the motor 10 is powered to cool; an output shaft 13 of the motor 10 penetrates through the upper wall of the motor shell 11 and is positioned on the upper side of the motor shell 11;
the shaft sleeve 14 is sleeved on the periphery of the output shaft 13 positioned on the upper side of the motor shell 11, the shaft sleeve 14 is fixedly connected with the output shaft 13, a flow channel 15 is formed in the shaft sleeve 14, and at least one limiting synapse 16 is arranged on the periphery of the shaft sleeve 14;
the limiting synapse 16 comprises a body and a contact; the contact body is a pipe with deformation capability, the deformation direction of the contact body is only along the self axial extension, and the contact body is fixedly arranged on the periphery of the shaft sleeve 14 and communicated with the flow channel 15 so as to drive the contact to be close to or far away from the shaft sleeve 14; the contact is a soft head made of an elastic membrane or a flexible membrane, the soft head wraps the opening of the contact body, which is far away from the end 14 of the shaft sleeve and is communicated with the contact body, and the contact can expand after being filled with liquid;
the water filling assembly 12 is sleeved on the periphery of the output shaft 13, the water filling assembly 12 comprises a water filling tank and a water filling wheel, the water filling wheel is fixedly sleeved on the periphery of the output shaft 13, the water filling tank is a fixing part, the water filling wheel is positioned in the water filling tank, the output shaft 13 penetrates through the water filling tank and keeps dynamic sealing with the water filling tank, the water filling tank is filled with liquid, the water filling tank is communicated with the flow channel 15, the flow channel 15 is also filled with liquid, the water filling wheel has the water driving capacity after rotating, the direction of driving water is towards a communication port of the water filling tank and the flow channel 15, and the liquid in the water filling tank moves towards the flow channel 15; in this embodiment, the water filling tank is fixedly disposed in the motor casing 11, an upper wall of the water filling tank is fixedly connected with an upper inner wall of the motor casing, the water filling tank is communicated with the cooling liquid in the motor casing 11, and the cooling liquid enters the flow channel to drive the movement of the contact.
The impellers 2 are sleeved on the periphery of the shaft sleeve 14, the number of the impellers 2 is the same as that of the limiting synapses 16, and the impellers 2 are rotatably connected with the shaft sleeve 14 through bearings; the impeller 2 comprises a chassis 20 and blades 21; a wheel hole 22 is arranged in the center of the chassis 20; the number of the blades 21 is multiple, and the multiple blades 21 are uniformly distributed on the upper end face of the chassis 20 in a circumferential manner and are arranged around the wheel hole 22; a circle of annular connecting groove 23 is formed in the inner wall of the wheel hole 22, and the position of the connecting groove 23 corresponds to the position of the limiting synapse 16; the connecting groove 23 comprises a moving groove and a limiting groove, the limiting groove is positioned at the inner side of the moving groove, the opening of the moving groove is arranged on the inner wall of the wheel hole 22, the caliber of the limiting groove is larger than that of the moving groove,
a plurality of partition plates 24 are arranged in the limiting grooves to separate the limiting grooves into a plurality of independent limiting cavities; the pipe diameter of the touch body is smaller than the caliber of the moving groove, so that the touch body can stretch and retract in the moving groove in a reciprocating manner; the diameter of the contact is equal to or smaller than that of the moving groove when the motor is not started in the initial state, the diameter of the contact is larger than that of the moving groove when the motor is started in the working state, the contact body is filled with water and extends at the moment to drive the contact external force shaft sleeve 14 to move and enter the limiting cavity, the diameter of the contact is larger than that of the moving groove, the contact is prevented from returning, and the limiting synapse 16 is enabled to be abutted against the partition plate 24, so that the output shaft 13 drives the impeller 2 to rotate.
The water pumping part 3 comprises a working shell, the working shell is sleeved on the peripheries of the impeller 2 and the shaft sleeve 14, and the lower end of the working shell is detachably connected with the upper end of the motor shell 11; the lower end part of the working shell is provided with a water inlet, and well water enters the working shell through the water inlet and contacts with the impeller; the upper end part of the working shell is provided with a water outlet, and well water centrifugally driven by the impeller is discharged out of the water well through the water outlet.
The working principle is as follows: after the deep well pump of the embodiment is placed in a water well, the deep well pump slowly descends until reaching the bottom of the well, well water enters the working shell through the water inlet, the motor is not started at the moment, the limiting synapse 16 is not abutted to the partition plate 24, the impeller 2 freely rotates with the shaft sleeve 14, and the impeller 2 is rotated in advance under the force of water rising; when the deep well pump reaches the bottom of the well, the motor is started, the water filling wheel is driven to rotate by the output end 13, the cooling liquid in the water filling tank is driven to move towards the flow channel, the flow channel is filled with the cooling liquid, once the cooling liquid is introduced into the flow channel, the contact body is immediately filled with water to expand, the contact is driven to move away from the shaft sleeve 14 and enter the limiting cavity, the diameter of the contact after being filled with water to expand is equal to the caliber of the limiting cavity and is larger than the caliber of the moving groove, the cooling liquid has the tendency of flowing towards the flow channel due to continuous rotation of the motor, so that the limiting synapse 16 is filled with water to have certain rigidity and can drive the impeller 2 to rotate after being abutted against the partition plate 24, and the rotating speed of the impeller 2 is the same as that of the output shaft 13; the impeller 2 has a certain initial rotation speed when being driven by the limiting synapse 16, so that the starting water resistance of the output shaft 13 is small, the service life of the output shaft 13 can be protected, and the pumping-out of well water is accelerated.
The second embodiment is as follows: on the basis of the first embodiment, please refer to fig. 7 for a deep well pump for reducing start-up water resistance, where a plurality of impellers 2 are sequentially arranged along an output shaft 13 from bottom to top, a plurality of limiting synapses 16 are provided, the number of the limiting synapses is consistent with that of the impellers 2, and the positions of the impellers 2 correspond to that of the limiting synapses 16.
A plurality of pressure valves 17 are arranged in the flow channel 15, the number of the pressure valves 17 is consistent with that of the limiting synapses 16, and the pressure valves 17 are all arranged at the lower side of the water inlets of the corresponding limiting synapses 16, that is, the liquid in the flow channel can enter the corresponding limiting synapses 16 only through the pressure valves 17.
The pressure valves 17 are normally closed members, and the opening threshold of each pressure valve 17 is different, and the opening threshold of the pressure valve 17 located on the lower side of the flow passage 15 is lower, that is, the water filling sequence of the plurality of limiting synapses 16 is from bottom to top.
Such an arrangement ensures that the output shaft 13 drives the lower impeller 2 to rotate first, and the impellers 2 are driven one by one rather than a plurality of impellers, which further reduces the starting water resistance of the motor 10.
The third concrete embodiment: different from the first embodiment, the water filling tank can also be communicated with the outside of the motor shell, when the deep well pump is thrown into a well, the water filling tank is communicated with well water, the well water enters the flow channel to drive the contact to move, wherein a filter screen is arranged at a communication port of the water filling tank and the well water, and solid particle impurities are prevented from entering the flow channel to cause blockage.
The fourth concrete embodiment: different from the concrete embodiment, the contact includes the steel ball of stereoplasm, the outer parcel of steel ball has the protective sheath that elastic rubber made, the protective sheath with touch body fixed connection, and the closed opening of touching the body and keeping away from axle sleeve 14, the bore of the diameter ratio shifting chute when the free diameter of protective sheath is not compressed will be big, make it receive the compression in the shifting chute, the free diameter of protective sheath is the same with the bore in spacing chamber, guarantee that the contact is by liquid propelling movement to spacing intracavity back, be difficult to the return, guarantee that contact and spacing chamber form the screens, make output shaft 13 can drive impeller 2 and rotate, guarantee this pivoted stability.
Additionally, embodiment three may be combined with embodiment two or four; embodiment four may be combined with embodiment two or three; embodiment three may be combined with embodiment two and embodiment four.
Claims (10)
1. The utility model provides a reduce deep-well pump that starts water resistance, includes motor portion (1), impeller (2) and the portion of drawing water (3) of coaxial setting, its characterized in that: the impeller (2) has the capability of rotating independently relative to an output shaft (13) of the motor part (1); the deep well pump also comprises a limiting module; the limiting module selectively connects the impeller (2) with the output shaft (13) in a follow-up manner.
2. The deep well pump of claim 1, wherein: the limiting module comprises:
the shaft sleeve (14) is fixedly sleeved on the outer side of the output shaft (13) positioned in the water pumping part (3); and the number of the first and second groups,
and the limiting synapse (16) is positioned on the periphery of the shaft sleeve (14), corresponds to the position matching of the impeller (2), and has the capacity of deforming or moving towards the impeller (2) so as to selectively limit the connection.
3. The deep well pump of claim 2, wherein: a flow channel (15) is formed in the shaft sleeve (14), and the flow channel (15) is filled with fluid; the deformation or movement of the limiting synapse (16) is driven by fluid in the flow channel (15).
4. A deep well pump with reduced startup water drag according to claim 3, wherein: the flow of fluid in the flow channel (15) is driven by the water filling component (12), and the start and stop of the water filling component (12) are controlled by a motor (10) in the motor part (1); the water filling assembly (12) is activated only when the deep well pump is located at the bottom of the well to discharge well water or cooling liquid in the motor part (1) into the flow channel (15).
5. The deep well pump of claim 4, wherein: the water filling assembly (12) comprises a water filling tank and a water filling wheel;
the output shaft (13) penetrates through the water filling tank and keeps dynamic seal with the water filling tank;
the water filling tank is positioned in the motor part (1) and is a fixing part, a water outlet of the water filling tank is communicated with the flow channel (15), and well water or cooling liquid is filled in the water filling tank;
the water filling wheel is positioned in the water filling tank and fixedly sleeved on the periphery of an output shaft (13) in the motor part (1) so as to rotate along with the output shaft (13), and the direction of driving water by the water filling wheel is towards the water outlet of the water filling tank.
6. The deep well pump of claim 2, wherein: the limiting synapse (16) comprises a contact body and a contact head;
the contact body is a pipe with deformation capability, the deformation direction of the contact body is only along the self axial extension, and the contact body is fixedly arranged on the periphery of the shaft sleeve (14) and communicated with the flow channel (15) so as to drive the contact to be close to or far away from the shaft sleeve (14);
the contact is fixedly arranged at the opening end of the contact body, which is far away from the shaft sleeve (14), so that the contact body is driven to move and/or deform, and the deformation of the contact is self expansion or collapse;
the inner wall of the impeller (2) is provided with an interface; when the contact moves into the interface or expands to be consistent with the interface caliber, the contact is in limit connection with the interface.
7. The deep well pump of claim 6, wherein: the contact is a soft head made of an elastic film or a flexible film, and the soft head wraps an opening of the contact body far away from the shaft sleeve (14); the diameter of the contact is smaller than the caliber of the interface in an unexpanded free state; the diameter of the contact is larger than the caliber of the interface in the expansion limit state.
8. The deep well pump of claim 6, wherein: the contact comprises a hard steel ball and a soft protective sleeve; the protective sleeve is wrapped outside the steel ball and is fixedly connected with the contact body, and an opening of the contact body, which is far away from the shaft sleeve (14), is sealed; the diameter of the protective sleeve is larger than or equal to the caliber of the interface in an uncompressed free state; the diameter of the passage for the protective sleeve to move into the interface is smaller than the diameter of the protective sleeve in the uncompressed free state.
9. A deep well pump with reduced startup water drag according to claim 3, wherein: a plurality of pressure valves (17) are arranged in the flow channel (15), the pressure valves (17) are normally closed parts, and each pressure valve (17) corresponds to one limiting synapse (16); the pressure valves (17) are arranged in the flow direction of the fluid in the flow channel (15) one by one, and each limiting synapse (16) is arranged on the water outlet side of the corresponding pressure valve (17).
10. The deep well pump of claim 9, wherein: the opening threshold of each pressure valve (17) is different, and the opening thresholds of the pressure valves (17) sequentially and linearly increase in the flowing direction of the fluid in the flow passage (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210081492.6A CN114427536B (en) | 2022-01-24 | 2022-01-24 | Deep well pump capable of reducing starting water resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210081492.6A CN114427536B (en) | 2022-01-24 | 2022-01-24 | Deep well pump capable of reducing starting water resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114427536A true CN114427536A (en) | 2022-05-03 |
| CN114427536B CN114427536B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210081492.6A Active CN114427536B (en) | 2022-01-24 | 2022-01-24 | Deep well pump capable of reducing starting water resistance |
Country Status (1)
| Country | Link |
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| CN (1) | CN114427536B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB687309A (en) * | 1950-10-09 | 1953-02-11 | Bour Company Inc | Improvements in shaft connection |
| JP2001248592A (en) * | 2000-03-02 | 2001-09-14 | Sankyo Seiki Mfg Co Ltd | Impeller for pump device and pump device |
| CN2839677Y (en) * | 2005-06-08 | 2006-11-22 | 杭州南方特种泵业有限公司 | Multi-stage deep well water pumping section |
| CN206448980U (en) * | 2016-12-30 | 2017-08-29 | 浙江大秦泵业有限公司 | Deep well pump and its impeller component |
| CN107299874A (en) * | 2016-12-14 | 2017-10-27 | 江苏国泉泵业制造有限公司 | A kind of axial flow pump hydraulic turbine with double-clutch mechanism |
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2022
- 2022-01-24 CN CN202210081492.6A patent/CN114427536B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB687309A (en) * | 1950-10-09 | 1953-02-11 | Bour Company Inc | Improvements in shaft connection |
| JP2001248592A (en) * | 2000-03-02 | 2001-09-14 | Sankyo Seiki Mfg Co Ltd | Impeller for pump device and pump device |
| CN2839677Y (en) * | 2005-06-08 | 2006-11-22 | 杭州南方特种泵业有限公司 | Multi-stage deep well water pumping section |
| CN107299874A (en) * | 2016-12-14 | 2017-10-27 | 江苏国泉泵业制造有限公司 | A kind of axial flow pump hydraulic turbine with double-clutch mechanism |
| CN206448980U (en) * | 2016-12-30 | 2017-08-29 | 浙江大秦泵业有限公司 | Deep well pump and its impeller component |
Non-Patent Citations (1)
| Title |
|---|
| 王万宏;施卫东;李跃民;薛少辉;周岭;: "叶片进口边单侧位置变化对深井泵性能的影响", 水电能源科学, no. 10, 25 October 2020 (2020-10-25), pages 154 - 157 * |
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| CN114427536B (en) | 2024-05-24 |
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