CN113969895B - Centrifugal pump, centrifugal pump assembly and production and use methods thereof - Google Patents
Centrifugal pump, centrifugal pump assembly and production and use methods thereof Download PDFInfo
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- CN113969895B CN113969895B CN202111412902.2A CN202111412902A CN113969895B CN 113969895 B CN113969895 B CN 113969895B CN 202111412902 A CN202111412902 A CN 202111412902A CN 113969895 B CN113969895 B CN 113969895B
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- pump
- centrifugal pump
- shaft
- piston
- fixedly connected
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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
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
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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
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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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
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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
- F04D29/046—Bearings
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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
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
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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
- F04D29/586—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
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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
- F04D29/60—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
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- Engineering & Computer Science (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 discloses a centrifugal pump and a centrifugal pump assembly. The pump shaft is connected with the output shaft of the driving motor through the coupler, the cooling box is installed and wrapped on the surface of the coupler, magnetic force adsorption is generated between a plurality of magnetic blocks and iron blocks which are arranged on the surface of the coupler, the piston is pulled to move up and down, cooling water is pumped into the conveying pipe upwards, the cooling water is blown to the surface of the coupler, the coupler and the pump shaft are cooled, the effect of automatically controlling and spraying the cooling water is achieved, through holes for the pump shaft and the output shaft of the driving motor to pass through are formed in the side face of the cooling box, a plurality of air flow blades are arranged on the surface of the pump shaft, and the air flow blades rotate to drive air flow to blow to the surfaces of the sealing bearing and the pump shaft, so that cooling and heat dissipation are further achieved for the pump shaft and the sealing bearing, and the service life of the sealing bearing is prolonged.
Description
Technical Field
The invention relates to the technical field of centrifugal pumps, in particular to a centrifugal pump, a centrifugal pump assembly and production and use methods thereof.
Background
The essential components of a centrifugal pump are the impeller, which rotates at high speed, and the fixed snail-shaped pump casing. Centrifugal pumps generally have an impeller with a plurality of back-curved blades secured to a pump shaft and rotated at high speed as the pump shaft is driven by a motor. The impeller is an energy supply device of the centrifugal pump and is a component for directly acting on liquid in the pump; the suction inlet in the center of the pump shell is connected with a suction pipeline, and a one-way bottom valve is arranged at the bottom of the suction pipeline; the exhaust port beside the pump shell is connected with an exhaust pipeline provided with an adjusting valve.
After the centrifugal pump is started, the pump shaft drives the impeller to perform high-speed rotation together, liquid filled between the blades in advance is forced to rotate, and the liquid moves radially from the center of the impeller to the periphery under the action of inertial centrifugal force. The liquid medium will acquire energy during the movement through the impeller, resulting in an increase in static pressure energy and an increase in flow rate. When the liquid leaves the impeller and enters the pump shell, the flow passage in the shell gradually expands to decelerate, part of kinetic energy is converted into static pressure energy, and finally the static pressure energy flows into the discharge pipeline along the tangential direction.
At present, when a centrifugal pump is used for conveying high-temperature fluid, heat of a pump shaft is conducted to an output shaft of a driving motor, so that the temperature of the driving motor is easily overhigh, and the temperature of the motor is high after the motor works for a long time.
Disclosure of Invention
The present invention aims to solve the disadvantages of the prior art and proposes a centrifugal pump, a centrifugal pump assembly and methods of producing and using the same.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the centrifugal pump comprises a pump shell, wherein an impeller is arranged in the pump shell, a pump shaft is connected with the right side of the impeller in a coaxial way, an input pipe is arranged in the middle of the left side of the pump shell, an output pipe is connected to the pump shell, a through hole matched with the pump shaft is formed in the pump shell, and a sealing bearing is arranged in the through hole.
The utility model provides a centrifugal pump assembly, includes foretell centrifugal pump, still includes base, driving motor and inlet pipe, the inlet pipe passes through the input tube connection of check valve with centrifugal pump, and the top of base is provided with fixed box, and driving motor's output shaft passes through shaft coupling and pump shaft fixed connection, the surface cover of pump shaft is equipped with the cooling box, the interior bottom fixedly connected with piston cylinder of fixed box, the last fixed surface of fixed box is connected with the connecting pipe, the inner wall sliding connection of piston cylinder has the piston, the upper surface fixedly connected with conveyer pipe of piston, the inside fixedly connected with diaphragm that the connecting pipe extended to the cooling box is passed at the top of conveyer pipe, and the fixed surface of shaft coupling is connected with a plurality of magnetic path, and the upper surface of diaphragm is fixed with the iron plate, and the magnetic force absorption is produced with the magnetic path, and the feed liquor hole has been seted up on the surface of piston cylinder, and the internally mounted of feed liquor hole has the check valve, the bottom fixedly connected with extension spring of piston, the inside of fixed box is equipped with the cooling water.
Preferably, a fixed seat is arranged at the bottom of the driving motor, and the fixed seat is fixedly connected with the upper surface of the base.
Preferably, the one-way valve restricts one-way entry of cooling water into the interior of the piston cylinder.
Preferably, the bottom of the conveying pipe penetrates through the piston to be communicated with the interior of the piston cylinder, and the top of the conveying pipe penetrates through the transverse plate to be communicated with the interior of the cooling box.
Preferably, the surface of the cooling box is provided with a shaft hole, the surface of the pump shaft is fixedly connected with an air flow blade, and the air flow blade rotates to drive air flow to blow to the sealing bearing.
The front and the back of the fixed box are respectively provided with a water inlet pipe and a water outlet pipe.
During the production of the centrifugal pump, the pump shell is integrally cast and formed, the impeller is arranged after the pump shell is formed, the impeller is welded with the pump shaft, then the sealing bearing is arranged, the sealing bearing is welded and fixed with the pump shaft and the pump shell, and finally the front shell of the pump shell is arranged, so that the production and the assembly of the centrifugal pump are completed.
When the centrifugal pump assembly is used, the pump shaft is connected with the output shaft of the driving motor through the coupler, the cooling box is installed and wrapped on the surface of the coupler, the circulating pump circularly drives cold water to enter the fixed box, when the centrifugal pump assembly conveys high-temperature fluid and causes the pump shaft and the coupler to be hotter, the coupler rotates to extrude cooling water into the cooling box through the coupler, the surface of the coupler is cooled, and meanwhile, cooling air flow is conveyed to the surface of the sealing bearing through the air flow blades to be dispersed on the sealing bearing, so that the influence of high temperature on the sealing element and the motor is prevented.
The invention has the following beneficial effects:
1. according to the centrifugal pump assembly, the pump shaft is connected with the output shaft of the driving motor through the coupler, the cooling box is installed and wrapped on the surface of the coupler, magnetic force adsorption is generated between the plurality of magnetic blocks arranged on the surface of the coupler and the iron blocks, the piston is pulled to move up and down, cooling water is pumped into the conveying pipe, so that the cooling water is blown to the surface of the coupler, and the coupler and the pump shaft are cooled, so that the centrifugal pump assembly has the effects of automatically controlling and spraying the cooling water.
2. According to the centrifugal pump assembly provided by the invention, the through holes for the pump shaft and the output shaft of the driving motor to pass through are formed in the side face of the cooling box, the plurality of air flow blades are arranged on the surface of the pump shaft, and the air flow blades rotate to drive air flow to blow to the surfaces of the sealing bearing and the pump shaft, so that cooling and heat dissipation of the pump shaft and the sealing bearing are further realized, and the service life of the sealing bearing is prolonged.
Drawings
FIG. 1 is a schematic elevational view of a centrifugal pump assembly according to the present invention;
FIG. 2 is a diagram showing the internal structure of a centrifugal pump according to the present invention;
FIG. 3 is a schematic diagram of the internal structures of the cooling box and the fixing box according to the present invention;
fig. 4 is an enlarged schematic view of the structure at a in fig. 3.
In the figure: 1 pump shell, 2 impeller, 3 pump shaft, 4 input pipe, 5 output pipe, 6 sealing bearing, 7 base, 8 driving motor, 9 inlet pipe, 10 check valve, 11 fixed box, 12 shaft coupling, 13 cooling box, 14 piston cylinder, 15 connecting pipe, 16 piston, 17 conveyer pipe, 18 diaphragm, 19 magnetic path, 20 iron block, 21 check valve, 22 extension spring, 23 fixing base, 24 air current blade.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-4, a centrifugal pump assembly, and methods of making and using the same
The centrifugal pump comprises a pump shell 1, wherein an impeller 2 is arranged in the pump shell 1, a pump shaft 3 connected with the impeller 2 in a coaxial way is arranged on the right side of the impeller 2, an input pipe 4 is arranged in the middle of the left side of the pump shell 1, an output pipe 5 is connected to the pump shell 1, a through hole matched with the pump shaft 3 is formed in the pump shell 1, and a sealing bearing 6 is arranged in the through hole.
During centrifugal pump production, the pump shell 1 is integrally cast and formed, the impeller 2 is arranged after the pump shell 1 is formed, the impeller 2 is welded with the pump shaft 3, the sealing bearing 6 is arranged, the sealing bearing is welded and fixed with the pump shaft 3 and the pump shell 1, and finally the front shell of the pump shell 1 is arranged, so that the centrifugal pump is produced and assembled.
The centrifugal pump assembly comprises the centrifugal pump, a base 7, a driving motor 8 and a feeding pipe 9, wherein the feeding pipe 9 is connected with an input pipe 4 of the centrifugal pump through a check valve 10, a fixed seat 23 is arranged at the bottom of the driving motor 8, and the fixed seat 23 is fixedly connected with the upper surface of the base 7.
The top of base 7 is provided with fixed box 11, the output shaft of driving motor 8 passes through shaft coupling 12 and pump shaft 3 fixed connection, the surface cover of pump shaft 3 is equipped with cooling box 13, the interior bottom wall fixedly connected with piston tube 14 of fixed box 11, the upper surface fixedly connected with connecting pipe 15 of fixed box 11, the inner wall sliding connection of piston tube 14 has piston 16, the upper surface fixedly connected with conveyer pipe 17 of piston 16, the inside fixedly connected with diaphragm 18 that the top of conveyer pipe 17 passed connecting pipe 15 and extended to cooling box 13, the surface fixedly connected with of shaft coupling 12 a plurality of magnetic path 19, the upper surface of diaphragm 18 is fixed with iron plate 20, iron plate 20 and magnetic path 19 produce magnetic force absorption, the inlet opening has been seted up on the surface of piston tube 14, the internally mounted of inlet opening has check valve 21, the inside of check valve 21 restriction cooling water one-way entering piston tube 14.
The bottom of the piston 16 is fixedly connected with a tension spring 22, cooling water is filled in the fixed box 11, the bottom of the conveying pipe 17 penetrates through the piston 16 and is communicated with the interior of the piston cylinder 14, and the top of the conveying pipe 17 penetrates through the transverse plate 18 and is communicated with the interior of the cooling box 13.
The using method of the centrifugal pump assembly comprises the following steps: the pump shaft 3 is connected with the output shaft of the driving motor 8 through the coupler 12, then the cooling box 13 is installed and wrapped on the surface of the coupler 12, magnetic force adsorption is generated between a plurality of magnetic blocks 19 arranged on the surface of the coupler 12 and the iron block 20, the piston 16 is pulled to move up and down, cooling water is pumped into the conveying pipe 17, so that the cooling water is blown to the surface of the coupler 12, the coupler 12 and the pump shaft 3 are cooled, and the effects of automatic control and cooling water spraying are achieved.
The surface of the cooling box 13 is provided with a shaft hole, the surface of the pump shaft 3 is fixedly connected with an air flow blade 24, and the air flow blade 24 rotates to drive air flow to blow to the sealing bearing 6.
The using method of the centrifugal pump assembly comprises the following steps: the through holes for the pump shaft 3 and the output shaft of the driving motor 8 to pass through are formed in the side face of the cooling box 13, a plurality of air flow blades 24 are arranged on the surface of the pump shaft 3, and the air flow blades 24 rotate to drive air flow to blow to the surfaces of the sealing bearing 6 and the pump shaft 3, so that cooling and heat dissipation of the pump shaft 3 and the sealing bearing 6 are further achieved, and the service life of the sealing bearing 6 is prolonged.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. A centrifugal pump assembly, characterized in that: including base (7), driving motor (8) and inlet pipe (9), inlet pipe (9) are connected with centrifugal pump's input tube (4) through check valve (10), and the top of base (7) is provided with fixed box (11), and the output shaft of driving motor (8) passes through shaft coupling (12) and pump shaft (3) fixed connection, the surface cover of pump shaft (3) is equipped with cooling box (13), and the interior bottom wall fixedly connected with piston tube (14) of fixed box (11), the upper surface fixedly connected with connecting pipe (15) of fixed box (11), the inner wall sliding connection of piston tube (14) has piston (16), the upper surface fixedly connected with conveyer pipe (17) of piston (16), the top of conveyer pipe (17) passes connecting pipe (15) and extends to cooling box (13)'s inside fixedly connected with diaphragm (18), and the surface fixedly connected with a plurality of magnetic blocks (19) of diaphragm (18), and the upper surface fixedly connected with iron block (20) of diaphragm (19) produces magnetic force absorption with piston tube (14), and the surface tension spring (16) has one-way inlet valve (22) of opening into fluid inlet hole (16), cooling water is filled in the fixing box (11); the inside of pump case (1) sets up impeller (2), the right side of impeller (2) is provided with and is connected with pump shaft (3) rather than the coaxial, the left side middle part of pump case (1) is provided with input tube (4), is connected with output tube (5) on pump case (1), has seted up the through-hole with pump shaft (3) adaptation on pump case (1), installs sealed bearing (6) in the through-hole.
2. A centrifugal pump assembly according to claim 1, wherein: the bottom of driving motor (8) is provided with fixing base (23), and fixing base (23) are connected with the upper surface of base (7) fixedly.
3. A centrifugal pump assembly according to claim 1, wherein: the one-way valve (21) restricts the one-way entry of cooling water into the interior of the piston cylinder (14).
4. A centrifugal pump assembly according to claim 1, wherein: the bottom of the conveying pipe (17) penetrates through the piston (16) to be communicated with the interior of the piston cylinder (14), and the top of the conveying pipe (17) penetrates through the transverse plate (18) to be communicated with the interior of the cooling box (13).
5. A centrifugal pump assembly according to claim 1, wherein: the surface of the cooling box (13) is provided with a shaft hole, the surface of the pump shaft (3) is fixedly connected with an air flow blade (24), and the air flow blade (24) rotates to drive air flow to blow to the sealing bearing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111412902.2A CN113969895B (en) | 2021-11-25 | 2021-11-25 | Centrifugal pump, centrifugal pump assembly and production and use methods thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111412902.2A CN113969895B (en) | 2021-11-25 | 2021-11-25 | Centrifugal pump, centrifugal pump assembly and production and use methods thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113969895A CN113969895A (en) | 2022-01-25 |
| CN113969895B true CN113969895B (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111412902.2A Active CN113969895B (en) | 2021-11-25 | 2021-11-25 | Centrifugal pump, centrifugal pump assembly and production and use methods thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113969895B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1458332A (en) * | 1974-01-30 | 1976-12-15 | Gutehoffnungshuette Sterkrade | Compressors or pumps |
| DE4227249A1 (en) * | 1992-08-18 | 1994-02-24 | Klaus Union Armaturen | Pot pump for fluids - has pump housing comprising cast suction connection, cast pressure connection, and intervening welded pipe section, the two connections having feet, to which the pump housing is fixed on a |
| CN203453112U (en) * | 2013-07-25 | 2014-02-26 | 淄博博山鲁明化工设备有限公司 | Plastic centrifugal pump |
| CN106401985A (en) * | 2016-12-09 | 2017-02-15 | 江苏大学 | Ship desulfurization pump |
| CN110725801A (en) * | 2019-11-20 | 2020-01-24 | 上海佰诺泵阀有限公司 | Direct-coupled centrifugal pump |
| CN111022347A (en) * | 2019-11-11 | 2020-04-17 | 邓明星 | High-temperature fan with multiple cooling mechanisms |
| CN112032071A (en) * | 2020-09-18 | 2020-12-04 | 李家豪 | Sewage pump suitable for sludge environment |
| CN113048067A (en) * | 2021-04-13 | 2021-06-29 | 许玉喜 | High stability magnetic centrifugal pump suitable for under high temperature high pressure operating mode |
| CN113685357A (en) * | 2021-08-25 | 2021-11-23 | 于天生 | Reciprocating circulation centrifugal water pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9360015B2 (en) * | 2012-07-16 | 2016-06-07 | Magna Powertrain Of America, Inc. | Submerged rotor electric water pump with structural wetsleeve |
-
2021
- 2021-11-25 CN CN202111412902.2A patent/CN113969895B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1458332A (en) * | 1974-01-30 | 1976-12-15 | Gutehoffnungshuette Sterkrade | Compressors or pumps |
| DE4227249A1 (en) * | 1992-08-18 | 1994-02-24 | Klaus Union Armaturen | Pot pump for fluids - has pump housing comprising cast suction connection, cast pressure connection, and intervening welded pipe section, the two connections having feet, to which the pump housing is fixed on a |
| CN203453112U (en) * | 2013-07-25 | 2014-02-26 | 淄博博山鲁明化工设备有限公司 | Plastic centrifugal pump |
| CN106401985A (en) * | 2016-12-09 | 2017-02-15 | 江苏大学 | Ship desulfurization pump |
| CN111022347A (en) * | 2019-11-11 | 2020-04-17 | 邓明星 | High-temperature fan with multiple cooling mechanisms |
| CN110725801A (en) * | 2019-11-20 | 2020-01-24 | 上海佰诺泵阀有限公司 | Direct-coupled centrifugal pump |
| CN112032071A (en) * | 2020-09-18 | 2020-12-04 | 李家豪 | Sewage pump suitable for sludge environment |
| CN113048067A (en) * | 2021-04-13 | 2021-06-29 | 许玉喜 | High stability magnetic centrifugal pump suitable for under high temperature high pressure operating mode |
| CN113685357A (en) * | 2021-08-25 | 2021-11-23 | 于天生 | Reciprocating circulation centrifugal water pump |
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| CN113969895A (en) | 2022-01-25 |
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