CN221373940U - Circulating fluid axial flow pump with cavitation-resistant structure - Google Patents
Circulating fluid axial flow pump with cavitation-resistant structure Download PDFInfo
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- CN221373940U CN221373940U CN202420173012.3U CN202420173012U CN221373940U CN 221373940 U CN221373940 U CN 221373940U CN 202420173012 U CN202420173012 U CN 202420173012U CN 221373940 U CN221373940 U CN 221373940U
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Abstract
The utility model discloses a circulating fluid axial flow pump with an anti-cavitation structure, which relates to the technical field of circulating fluid axial flow pumps, and comprises a bottom plate, wherein the top of the bottom plate is provided with a pump body mechanism, the top of the bottom plate is provided with an anti-cavitation mechanism for preventing cavitation caused by the inside of the circulating fluid axial flow pump, and the anti-cavitation mechanism comprises: the mounting assembly is arranged at the top of the bottom plate; the separation assembly is arranged in the installation assembly; the exhaust assembly is arranged in the installation assembly and used for exhausting gas in the installation assembly, the separation assembly is arranged, the driving motor is operated to drive the motor shaft to rotate, the motor shaft drives the rotating shaft and the second conical teeth to synchronously rotate, the second conical teeth drive the first conical teeth and the separation assembly to rotate, the rotating shaft drives the centrifugal impeller to rotate, liquid entering from the liquid inlet pipe is driven to rotate, the liquid generates centrifugal force to contact with the inner wall of the connecting pipe, and accordingly gas in the liquid is exhausted, and the occurrence probability of cavitation is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of circulating fluid axial flow pumps, in particular to a circulating fluid axial flow pump with a cavitation resistant structure.
Background
The circulating fluid axial flow pump is mainly used for low-lift and high-flow occasions, such as irrigation, drainage, dock drainage and water level adjustment of canal locks, or used as a large-scale circulating water pump of a power plant.
According to the patent name: the utility model provides a forced circulation axial-flow pump cavitation resistant structure (patent publication: CN219159268U, patent publication: 2023-06-09), includes the base, be fixed with the pump body, support and motor on the base in proper order, the opening of the pump body side that deviates from the motor is the water inlet, and another opening is the delivery port, be connected with the rotation axis on the output shaft of motor, the rotation axis runs through the support and extends into the inside of the pump body, install the stator on the rotation axis, the stator sets up between water inlet and delivery port, the impeller is installed on the top of rotation axis, install the kuppe on the water inlet, the device has solved the problem of easily causing cavitation when there is more bubbles in the circulating fluid, has reduced cavitation phenomenon's emergence, has prolonged the holistic life of pump.
Based on the prior art, the existing circulating fluid axial flow pump with the cavitation resistant structure has the following problems that cavitation is easy to occur when the axial flow pump is used for conveying high cavitation fluid, so that the pump performance is reduced, vibration is aggravated, noise is increased, and even the overflow part of the pump is damaged seriously.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the circulating fluid axial flow pump with the cavitation-resistant structure, which solves the problems that the existing circulating fluid axial flow pump with the cavitation-resistant structure has cavitation erosion easily when the axial flow pump is used for conveying high cavitation-resistant fluid, so that the pump performance is reduced, the vibration is aggravated, the noise is increased, and even the overcurrent part of the pump is damaged when the axial flow pump is serious.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a take anti cavitation structure's circulating fluid axial-flow pump, includes the bottom plate, the top of bottom plate is provided with pump body mechanism, the top of bottom plate is provided with anti cavitation mechanism and is used for preventing that circulating fluid axial-flow pump is inside to cause cavitation, includes in the anti cavitation mechanism:
The mounting assembly is arranged at the top of the bottom plate and comprises a support base fixedly arranged at the top of the bottom plate, a connecting pipe is fixedly arranged at the top of the support base, and a liquid inlet pipe is fixedly arranged at the left side of the connecting pipe;
the separation assembly is arranged in the installation assembly and comprises an installation rack rod fixedly installed in the support base, a rotating shaft is installed in the support base in a rotating and penetrating mode, the rotating shaft comprises a centrifugal impeller fixedly sleeved with the centrifugal impeller, and a first bevel gear is fixedly installed at the bottom end of the rotating shaft;
and the exhaust assembly is arranged in the installation assembly and is used for exhausting gas in the installation assembly.
Preferably, the exhaust assembly comprises an exhaust pipe fixedly penetrating through the top end of the connecting pipe, a linkage rotating column is fixedly arranged at the top end of the rotating shaft, and the linkage rotating column comprises an exhaust impeller fixedly sleeved with the linkage rotating column.
Preferably, the pump body mechanism comprises a driving motor fixedly arranged at the top of the bottom plate, a motor shaft is rotatably arranged at the output end of the driving motor, a pump impeller is fixedly sleeved on one end surface of the motor shaft, a mounting base is fixedly arranged at the top of the bottom plate, a pump shell is fixedly arranged at the top of the mounting base, a liquid outlet pipe is fixedly arranged at the top of the pump shell, and a bearing is fixedly arranged at the right end of the pump shell.
Preferably, the pump body mechanism further comprises a rotating shaft fixedly arranged at the left end of the motor shaft, and the surface of the left end of the rotating shaft is fixedly sleeved with a second bevel gear.
Preferably, the left end of the motor shaft rotates through the bearing and the right side plate of the pump shell and is inserted into the pump shell.
Preferably, the second bevel gear is meshed with the first bevel gear.
The utility model provides a circulating fluid axial flow pump with a cavitation resistant structure. Compared with the prior art, the method has the following beneficial effects:
(1) This take anti cavitation structure's circulating fluid axial-flow pump through being provided with separation subassembly, and driving motor operation drives the motor shaft and rotates, and the motor shaft drives pivot, second awl tooth synchronous rotation to second awl tooth drives first awl tooth, separation subassembly and rotates, and the rotation axis drives centrifugal impeller and rotates, thereby drives the liquid rotation that gets into from the feed liquor pipe, makes liquid produce centrifugal force and the inner wall contact of connecting pipe, thereby realizes the inside gas of discharge liquid, effectively reduces cavitation probability.
(2) The circulating fluid axial flow pump with the anti-cavitation structure is provided with the exhaust assembly, the rotating shaft drives the linkage rotating column to rotate when the rotating shaft rotates, and the linkage rotating column drives the exhaust impeller to rotate, so that the gas separated from the connecting pipe is discharged out of the connecting pipe, and the separated gas is prevented from being sucked into the pump shell to cause cavitation.
Drawings
FIG. 1 is a right side perspective view of the present utility model;
FIG. 2 is a front cross-sectional perspective view of the apparatus of the present utility model;
FIG. 3 is a front cross-sectional perspective view of the anti-cavitation mechanism of the present utility model;
fig. 4 is a front cross-sectional perspective view of the pump mechanism of the present utility model.
In the figure: 1-bottom plate, 2-cavitation-resistant mechanism, 21-installation component, 211-supporting base, 212-connecting pipe, 213-feed liquor pipe, 22-separation component, 221-installation hack lever, 222-rotation axis, 223-centrifugal impeller, 224-first awl tooth, 23-exhaust component, 231-linkage rotating column, 232-exhaust impeller, 233-exhaust pipe, 3-pump body mechanism, 31-driving motor, 32-motor shaft, 33-installation base, 34-pump shell, 35-bearing, 36-feed liquor pipe, 37-pump impeller, 38-rotation axis, 39-second awl tooth.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution:
The utility model provides a take anti cavitation structure's circulating fluid axial-flow pump, includes bottom plate 1, and the top of bottom plate 1 is provided with pump body mechanism 3, and the top of bottom plate 1 is provided with anti cavitation mechanism 2 and is used for preventing that circulating fluid axial-flow pump is inside to cause cavitation, includes in anti cavitation mechanism 2:
The mounting assembly 21 is arranged at the top of the bottom plate 1 and comprises a support base 211 fixedly arranged at the top of the bottom plate 1, a connecting pipe 212 is fixedly arranged at the top of the support base 211, and a liquid inlet pipe 213 is fixedly arranged at the left side of the connecting pipe 212;
The separation assembly 22 is arranged in the installation assembly 21 and comprises an installation hack lever 221 fixedly arranged in the support base 211, a rotating shaft 222 is installed in the support base 211 in a penetrating manner, the rotating shaft 222 comprises a centrifugal impeller 223 fixedly sleeved with the centrifugal impeller 223, top blades of the centrifugal impeller 223 are arc-shaped and distributed in a circumferential array, liquid generates centrifugal force during rotation, gas-liquid separation is achieved, first conical teeth 224 are fixedly arranged at the bottom end of the rotating shaft 222, epoxy resin is smeared on the surfaces of the installation hack lever 221, the rotating shaft 222, the centrifugal impeller 223 and the first conical teeth 224, the surfaces of parts are effectively protected from being corroded and worn by water, a separation assembly 22 is arranged, a driving motor 31 is operated to drive a motor shaft 32 to rotate, the motor shaft 32 drives a rotating shaft 38 and a second conical teeth 39 to synchronously rotate, the second conical teeth 39 drive the first conical teeth 224 and the separation assembly 22 to rotate, the rotating shaft 222 drives the centrifugal impeller 223 to rotate, so that liquid entering from a liquid inlet pipe 213 is driven to rotate, the liquid generates centrifugal force to be contacted with the inner wall of a connecting pipe 212, and gas inside the liquid is discharged, and the probability of cavitation is effectively reduced;
The exhaust assembly 23 is disposed inside the installation assembly 21, and is used for exhausting the gas inside the installation assembly 21.
In this embodiment, the exhaust assembly 23 includes an exhaust pipe 233 fixedly penetrating through the top of the connecting pipe 212, a linkage rotating column 231 is fixedly installed at the top of the rotating shaft 222, the linkage rotating column 231 includes a fixedly sleeved exhaust impeller 232, the surfaces of the linkage rotating column 231, the exhaust impeller 232 and the exhaust pipe 233 are coated with epoxy resin, the surfaces of parts are effectively protected from being corroded and worn by water, the exhaust assembly 23 is arranged, the rotating shaft 222 drives the linkage rotating column 231 to rotate while the rotating shaft 222 rotates, the linkage rotating column 231 drives the exhaust impeller 232 to rotate, and therefore gas separated from the connecting pipe 212 is discharged out of the connecting pipe 212, and the separated gas is prevented from being sucked into the pump shell 34 to cause cavitation.
In this embodiment, the pump body mechanism 3 includes a driving motor 31 fixedly installed on the top of the bottom plate 1, the driving motor 31 is a three-phase asynchronous motor, and is electrically connected with an external power supply and realizes the opening and closing operation by a personnel operating control panel, an output end of the driving motor 31 is rotatably provided with a motor shaft 32, a pump impeller 37 is fixedly sleeved on one end surface of the motor shaft 32, epoxy resin is coated on the surfaces of the pump impeller 37 and the motor shaft 32, the surfaces of parts are effectively protected from corrosion and abrasion caused by water, an installation base 33 is fixedly installed on the top of the bottom plate 1, a pump shell 34 is fixedly installed on the top of the installation base 33, a liquid outlet pipe 36 is fixedly installed on the top of the pump shell 34, a bearing 35 is fixedly installed on the right end of the pump shell 34, the left end of the motor shaft 32 is rotatably penetrated through the inside of the bearing 35 and the right side plate of the pump shell 34 and is inserted into the pump shell 34, the driving motor 31 is operated to drive the motor shaft 32 to rotate, and the motor shaft 32 is driven to rotate to generate suction force, so that liquid enters the inside the connecting pipe 212.
In this embodiment, the pump body mechanism 3 further includes a rotating shaft 38 fixedly installed at the left end of the motor shaft 32, and the surface of the left end of the rotating shaft 38 is fixedly sleeved with a second conical tooth 39, the surfaces of the rotating shaft 38 and the second conical tooth 39 are coated with epoxy resin, so that the surfaces of parts are effectively protected from being corroded by water and worn, the second conical tooth 39 is meshed with the first conical tooth 224, the motor shaft 32 is driven to rotate by the operation of the driving motor 31, the motor shaft 32 drives the rotating shaft 38 and the second conical tooth 39 to rotate, and the second conical tooth 39 is meshed with the first conical tooth 224 to drive the first conical tooth 224 to synchronously rotate, so that a kinetic energy synchronous operation is realized, and energy is saved.
And all that is not described in detail in this specification is well known to those skilled in the art.
When the centrifugal pump is in operation, firstly, the motor 31 is driven to rotate to drive the motor shaft 32, the motor shaft 32 drives the pump impeller 37 to rotate to generate suction force, liquid enters the connecting pipe 212 from the inside, meanwhile, the motor shaft 32 drives the rotating shaft 38 and the second conical teeth 39 to synchronously rotate, so that the second conical teeth 39 drive the first conical teeth 224 and the separating assembly 22 to rotate, the rotating shaft 222 drives the centrifugal impeller 223 to rotate, liquid entering from the liquid inlet pipe 213 is driven to rotate, the liquid generates centrifugal force to be in contact with the inner wall of the connecting pipe 212 to discharge gas in the liquid, then, the rotating shaft 222 drives the linkage rotating column 231 to rotate while the rotating shaft 222 rotates, the linkage rotating column 231 drives the exhaust impeller 232 to rotate, and gas separated from the connecting pipe 212 is discharged from the connecting pipe 212, and the liquid enters the pump shell 34 to be discharged from the liquid outlet pipe 36 to complete the operation.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a take anti cavitation structure's circulating fluid axial-flow pump, includes bottom plate (1), the top of bottom plate (1) is provided with pump body mechanism (3), its characterized in that: the top of bottom plate (1) is provided with anti cavitation mechanism (2) and is used for preventing circulating fluid axial-flow pump inside to cause cavitation, includes in anti cavitation mechanism (2):
The mounting assembly (21) is arranged at the top of the bottom plate (1) and comprises a support base (211) fixedly arranged at the top of the bottom plate (1), a connecting pipe (212) is fixedly arranged at the top of the support base (211), and a liquid inlet pipe (213) is fixedly arranged at the left side of the connecting pipe (212);
The separation assembly (22) is arranged in the installation assembly (21), and comprises an installation rack rod (221) fixedly installed in the support base (211), a rotating shaft (222) is installed in the support base (211) in a rotating and penetrating mode, the rotating shaft (222) comprises a centrifugal impeller (223) fixedly sleeved with the centrifugal impeller, and a first bevel gear (224) is fixedly installed at the bottom end of the rotating shaft (222);
And an exhaust unit (23) which is provided inside the installation unit (21) and which is used for exhausting the gas inside the installation unit (21).
2. The circulating fluid axial flow pump with anti-cavitation structure of claim 1, wherein: the exhaust assembly (23) comprises an exhaust pipe (233) fixedly penetrating through the top end of the connecting pipe (212), a linkage rotating column (231) is fixedly arranged at the top end of the rotating shaft (222), and the linkage rotating column (231) comprises an exhaust impeller (232) fixedly sleeved with the linkage rotating column.
3. The circulating fluid axial flow pump with anti-cavitation structure of claim 1, wherein: the pump body mechanism (3) comprises a driving motor (31) fixedly arranged at the top of the bottom plate (1), a motor shaft (32) is rotatably arranged at the output end of the driving motor (31), a pump impeller (37) is fixedly sleeved on one end surface of the motor shaft (32), a mounting base (33) is fixedly arranged at the top of the bottom plate (1), a pump shell (34) is fixedly arranged at the top of the mounting base (33), a liquid outlet pipe (36) is fixedly arranged at the top of the pump shell (34), and a bearing (35) is fixedly arranged at the right end of the pump shell (34).
4. A circulating fluid axial flow pump with anti-cavitation structure according to claim 3, characterized in that: the pump body mechanism (3) further comprises a rotating shaft (38) fixedly arranged at the left end of the motor shaft (32), and a second conical tooth (39) is fixedly sleeved on the left end surface of the rotating shaft (38).
5. A circulating fluid axial flow pump with anti-cavitation structure according to claim 3, characterized in that: the left end of the motor shaft (32) rotates to penetrate through the inside of the bearing (35) and the right side plate of the pump shell (34) and is inserted into the inside of the pump shell (34).
6. The circulating fluid axial flow pump with anti-cavitation structure of claim 4, wherein: the second bevel gear (39) is meshed with the first bevel gear (224).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420173012.3U CN221373940U (en) | 2024-01-24 | 2024-01-24 | Circulating fluid axial flow pump with cavitation-resistant structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420173012.3U CN221373940U (en) | 2024-01-24 | 2024-01-24 | Circulating fluid axial flow pump with cavitation-resistant structure |
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| CN221373940U true CN221373940U (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202420173012.3U Active CN221373940U (en) | 2024-01-24 | 2024-01-24 | Circulating fluid axial flow pump with cavitation-resistant structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118775347A (en) * | 2024-09-04 | 2024-10-15 | 高邮长河泵业有限公司 | A centrifugal pump auxiliary device for anti-cavitation |
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2024
- 2024-01-24 CN CN202420173012.3U patent/CN221373940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118775347A (en) * | 2024-09-04 | 2024-10-15 | 高邮长河泵业有限公司 | A centrifugal pump auxiliary device for anti-cavitation |
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