CN212717188U - Vertical axial-flow pump - Google Patents
Vertical axial-flow pump Download PDFInfo
- Publication number
- CN212717188U CN212717188U CN202021308137.0U CN202021308137U CN212717188U CN 212717188 U CN212717188 U CN 212717188U CN 202021308137 U CN202021308137 U CN 202021308137U CN 212717188 U CN212717188 U CN 212717188U
- Authority
- CN
- China
- Prior art keywords
- vertical axial
- impeller
- flow pump
- water guide
- guide bearing
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a vertical axial-flow pump, include: the guide vane system comprises a water guide bearing arranged on the periphery of the pump shaft and a guide vane body arranged on the periphery of the water guide bearing, and the guide vane body and the water guide bearing are of split structures; the vertical axial-flow pump has a detection state, and when the vertical axial-flow pump is in the detection state, part of the guide vane body and the water guide bearing are arranged on the pump shaft. The corresponding positions of the guide vane body and the water guide bearing which remain uninstalled thus provide a detection space for an installer, so that the installer can directly observe the gap between the pump shaft and the water guide bearing from the front at the position where the guide vane body and the water guide bearing are uninstalled. The observation position has large observation space and sufficient light, so that the observation is more convenient and the observation result is more accurate.
Description
Technical Field
The utility model relates to a vertical axial-flow pump.
Background
As shown in fig. 1, the large-sized vertical axial flow pump 100 includes a pump shaft 1, and an impeller system 2, a vane guide system 3, and a bent pipe 4 are sequentially disposed from bottom to top along an axial direction of the pump shaft 1, wherein the pump shaft 1 penetrates through the vane guide system 3. The impeller system 2 comprises an impeller housing 21, a rotor part 23 arranged in a cavity surrounded by the impeller housing 211, and an impeller 22 arranged on the periphery of the rotor part 23, wherein the axis of the rotor part 23 is aligned with the pump shaft 1, and the rotor part 23 is fixedly connected with the pump shaft 1; the guide vane body system 3 includes a guide bearing 31 disposed on the outer periphery of the pump shaft 1, and a guide vane body 32 disposed on the outer periphery of the guide bearing 31. In the vertical axial-flow pump 100, a pump seat 7 is communicated between the guide vane body system 3 and the elbow 4, and the vertical axial-flow pump 100 is fixedly installed on the ground through the pump seat 7. The vertical axial-flow pump 100 sucks liquid from below through the impeller system 2, forms a rotational flow through the guide vane body system 3, and is discharged from the elbow 4. Below the impeller system 2, the position where the liquid enters the vertical axial-flow pump 100 is called a water inlet, and above the guide vane body system 3, the position where the liquid flows out of the guide vane body system 3 is called a water outlet.
When the vertical axial-flow pump 100 is installed, an installer detects that a gap between the pump shaft 1 and the water guide bearing 31 is required, so that the water guide bearing 31 and the pump shaft 1 are prevented from being locked and generating heat and further generating abrasion due to no gap or insufficient gap or uneven gap between the water guide bearing 31 and the pump shaft 1; or the clearance between the water guide bearing 31 and the pump shaft 1 is too large, so that transmission cannot be realized. Similarly, clearance is also required between the impeller housing 21 and the rotor part 23 (or the impeller 22).
However, in the vertical axial flow pump 100 according to the related art, the water guide bearing 31 and the guide vane body 32 or the impeller housing 21 have an integral structure, and need to be integrally mounted. Therefore, when the clearance between the water guide bearing 31 and the pump shaft 1, or the clearance between the impeller housing 21 and the rotor member 23, is detected, the clearance is generally detected from the lower water inlet to the upper side, or from the upper water outlet to the lower side. The observation direction is as shown by the arrow in fig. 1, no matter which mode, there are detection space small, and light is not enough, and above-mentioned clearance can't be observed directly, openly more to lead to the observation degree of difficulty big, it is long consuming time, more serious be that the observation result in above-mentioned clearance is inaccurate, can't satisfy the demand.
In addition, an inlet expansion joint 5 is arranged below the impeller system 2. Due to factors such as the structure or the size of the water pump, the height H of the rotor part 23 is greater than the height H from the guide vane body 32 to the inlet expansion joint, so that once the rotor part 23 is damaged, the rotor part 23 cannot be directly removed when maintenance or replacement is needed, and the rotor part 23 can be removed again only by removing external parts of the water pump, such as the pump base 7, the elbow 4 and the like. A new rotor part 23 needs to be re-adjusted when being re-installed. The maintenance mode needs to consume a large amount of manpower, material resources and money, and the maintenance is very inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect among the prior art, the embodiment of the utility model provides a vertical axial-flow pump, include: the guide vane system comprises a water guide bearing arranged on the periphery of the pump shaft and a guide vane body arranged on the periphery of the water guide bearing, and the guide vane body and the water guide bearing are of split structures;
the vertical axial-flow pump has a detection state, and when the vertical axial-flow pump is in the detection state, part of the guide vane body and the water guide bearing are arranged on the pump shaft.
Further, the impeller system includes: the impeller comprises an impeller shell, a rotor component arranged in a cavity formed by the impeller shell in an enclosing way, and an impeller arranged on the periphery of the rotor component, wherein the rotor component is fixedly connected with the pump shaft; the impeller shell is of a split structure, and when the vertical axial-flow pump is in a detection state, part of the impeller shell is arranged on the pump shaft.
Further, the guide vane body, the water guide bearing and the impeller shell are of a two-half structure.
Further, the outer circumference of the pump shaft corresponding to the water guide bearing is subjected to surfacing treatment or chromium plating treatment.
Further, the water guide bearing is a rubber bearing.
Furthermore, the guide vane body is fixedly connected with the water guide bearing, a pipeline is arranged inside the guide vane body, one end of the pipeline is connected with an external water supply device, and the other end of the pipeline is communicated to the water guide bearing.
Further, the guide vane body has an inner peripheral wall close to the water guide bearing, and an outer peripheral wall opposite to the inner peripheral wall, a connecting wall extending along the radial direction of the pump shaft is arranged between the inner peripheral wall and the water guide bearing, and the pipeline is arranged along the radial direction of the pump shaft and penetrates through the inner peripheral wall and the outer peripheral wall.
Further, the periphery cover of water guide bearing is equipped with metal axle sleeve, the connection wall with metal axle sleeve is connected.
Further, an inlet expansion joint is further arranged below the impeller system and is sealed through an O-shaped sealing ring.
Further, the utility model discloses still include a vertical axial-flow pump, include: the pump shaft is followed the axial direction of pump shaft is from the lower impeller system and the stator system that has set gradually from top down, impeller system includes: the pump comprises an impeller shell, a rotor component and an impeller, wherein the rotor component is arranged in a cavity formed by the impeller shell in a surrounding manner, the impeller is arranged on the periphery of the rotor component, the rotor component is fixedly connected with a pump shaft, and the impeller shell is of a split structure;
the vertical axial-flow pump has a detection state, and when the vertical axial-flow pump is in the detection state, part of the impeller shell is arranged on the pump shaft.
The utility model has the advantages as follows:
the guide vane body and the water guide bearing in the vertical axial-flow pump are of a split structure, so that when the vertical axial-flow pump is installed, only part of the guide vane body and the water guide bearing are installed, and the corresponding positions of the guide vane body and the water guide bearing which are not installed are left to provide a detection space for an installer, so that the installer can directly observe the gap between the pump shaft and the water guide bearing from the front at the positions where the guide vane body and the water guide bearing are not installed. Similarly, the impeller shell is also of a split structure, an installer can directly observe the gap between the impeller shell and the rotor component from the front, and the observation position is large in observation space and sufficient in light, so that observation is more convenient, and the observation result is more accurate.
Secondly, the impeller shell is of a split structure, and the impeller shell of the mounting part can be used for conveniently mounting the impeller.
In addition, the split structure is convenient to maintain. If the rotor component is damaged once, the guide vane body and the impeller shell which are separated are easier to disassemble than those which are integrated. After the guide vane body and the impeller shell are removed, the rotor part is taken out from the side face at a certain inclination angle, parts such as a pump base and a bent pipe do not need to be moved, the maintenance amount is small, and manpower and material resources can be saved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a vertical axial flow pump according to the prior art of the present invention;
fig. 2 is a schematic diagram of a vertical axial flow pump according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a top view of a vane system in an embodiment of the present invention;
fig. 5 is a schematic view of an inlet expansion joint in the practice of the present invention.
Reference numerals of the above figures: vertical axial-flow pump-100; a pump shaft-1; impeller system-2; an impeller housing-21; an impeller-22; a rotor component-23; guide vane system-3; a water guide bearing-31; a metal sleeve-311; a water inlet-312; a guide vane body-32; an inner peripheral wall-321; an outer peripheral wall-322; a connecting wall-323; a conduit-324; a bent pipe-4; an inlet expansion joint-5; a sleeve-51; a pressing ring-511; a base-52; o-shaped sealing ring-6; a pump base-7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
To achieve the above object, the present invention provides a vertical axial flow pump 100, as shown in fig. 2, including: the pump shaft 1 is provided with an impeller system 2, a guide vane body system 3 and a bent pipe 4 from bottom to top in sequence along the axial direction of the pump shaft 1, and the pump shaft 1 penetrates through the guide vane body system 3. The guide vane body system 3 comprises a water guide bearing 31 arranged on the periphery of the pump shaft 1 and a guide vane body 32 arranged on the periphery of the water guide bearing 31, and the guide vane body 32 and the water guide bearing 31 are both of split structures;
the impeller system 2 includes: the pump comprises an impeller shell 21, a rotor part 23 arranged in a cavity enclosed by the impeller shell 21 and an impeller 22 arranged on the periphery of the rotor part 23, wherein the axis of the rotor part 23 is in the same straight line with the pump shaft 1, and the rotor part 23 is fixedly connected with the pump shaft 1; the impeller shell 21 is of a split structure.
In the vertical axial-flow pump 100, a pump seat is communicated between the guide vane body system 3 and the elbow 4, and the vertical axial-flow pump 100 is fixedly installed on the ground through the pump seat. The vertical axial flow pump 100 pumps the water under the ground through the impeller system 2 and the vane body system 3 and discharges the water from the elbow 4. Below the impeller system 2, the position where the liquid enters the vertical axial-flow pump 100 is called a water inlet, and above the guide vane body system 3, the position where the liquid flows out of the guide vane body system 3 is called a water outlet.
The vertical axial flow pump 100 has a detection state, and when the vertical axial flow pump 100 is in the detection state, part of the guide vane body 32 and the water guide bearing 31 are mounted on the pump shaft 1, or part of the impeller housing 21 is mounted on the pump shaft 1.
In the present embodiment, the guide vane body 32 and the guide bearings 31 are both of a split structure, and thus, the guide vane body 32 and the guide bearings 31 need to be partially installed at the time of installation. Therefore, when the vertical axial flow pump 100 is installed, only a part of the guide vane body 32 and the water guide bearing 31 are installed, and the corresponding positions of the guide vane body 32 and the water guide bearing 31 which are not installed are left to provide a detection space for an installer, so that the installer can directly observe the gap between the pump shaft 1 and the water guide bearing 31 from the front at the positions where the guide vane body 32 and the water guide bearing 31 are not installed. When the impeller housing 21 is partially installed, an installer can check the position where the impeller housing 21 is not installed. Compared with the prior art, in which the gap between the pump shaft 1 and the water guide bearing 31 or the gap between the impeller housing 21 and the rotor component 23 (or the impeller 22) is detected at the water inlet from bottom to top or at the water outlet from top to bottom, in this embodiment, the gap between the pump shaft 1 and the water guide bearing 31 or the gap between the impeller housing 21 and the rotor component 23 (or the impeller 22) can be directly observed at the side of the vertical axial flow pump 100, and the observation direction is shown by an arrow in fig. 2. The observation position has large observation space and sufficient light, so that the observation is more convenient and the observation result is more accurate.
Secondly, the impeller shell 21 is of a split structure, and the impeller 22 can be conveniently installed on the impeller shell 21 of the installation part.
In addition, the split structure is convenient to maintain. If the rotor part 23 is damaged once, the guide vane body 32 and the impeller shell 21 which are separated are easier to disassemble compared with the integrated one-piece one. After the guide vane body 32 and the impeller shell 21 are removed, the screws of the rotor part 23 are loosened, the rotor part 23 is taken out from the side surface by inclining the rotor part 23 at a certain angle, and parts such as a pump base and an elbow 4 are not needed, so that the maintenance amount is small, and manpower and material resources can be saved.
In the present embodiment, the vane body 32, the water guide bearing 31, and the impeller housing 21 are each of a two-half structure.
The periphery of the pump shaft 1 corresponding to the water guide bearing 31 is subjected to surfacing treatment or chromium plating treatment, so that the wear resistance between the pump shaft 1 and the water guide bearing 31 is improved.
The water guide bearing 31 is a rubber bearing.
Further, as shown in fig. 3. The guide vane body 32 is fixedly connected with the water guide bearing 31, a pipeline 324 is arranged inside the guide vane body 32, one end of the pipeline 324 is connected with an external water supply device, and the other end of the pipeline 324 is communicated with the water guide bearing 31. The pipe 324 transports the liquid supplied from the external water supply device to the water guide bearing 31, so that the inside of the water guide bearing 31 can be washed.
Specifically, the vane body 32 has an inner peripheral wall 321 close to the water guide bearing 31 and an outer peripheral wall 322 opposite to the inner peripheral wall 321, a connection wall 323 extending in the radial direction of the pump shaft 1 is disposed between the inner peripheral wall 321 and the water guide bearing 31, and the pipe 324 is disposed in the radial direction of the pump shaft 1 and penetrates through the inner peripheral wall 321 and the outer peripheral wall 322. The inner peripheral wall 321 surrounds the water guide bearing 31, and an inner cavity is formed between the inner peripheral wall 321 and the water guide bearing 31.
In the vertical axial flow pump 100, the guide vane body 32 is provided with the pipe 324, so that the pipe 324 can introduce the liquid of the external water supply device into the inner cavity of the axial flow pump 100, thereby flushing the inside of the axial flow pump 100.
As shown in fig. 4, the water guide bearing 31 is provided with water inlet holes 312 along the radial direction. The liquid of the external water supply device enters the inner cavity through the pipe 324 and then enters the inside of the water guide bearing 31 through the water inlet hole 312.
The periphery cover of water guide bearing 31 is equipped with metal shaft sleeve 311, metal shaft sleeve 311 is used for the protection water guide bearing 31. The connecting wall 323 is connected to the metal sleeve 311. In this embodiment, two upper and lower connecting walls 323 are provided in the axial direction to more firmly connect the guide vane body 32 and the water guide bearing 31.
An inlet expansion joint 5 is further arranged below the impeller system 2, the inlet expansion joint 5 is sealed through an O-shaped sealing ring 6, fillers are replaced, and the service life is prolonged. Specifically, as shown in fig. 5, the inlet expansion joint 5 includes a sleeve 51 and a base 52, the sleeve 51 is sleeved in the base 52, a pressing ring 511 is arranged on the periphery of the sleeve 51, and the pressing ring 511 is fixedly connected with the base 52 through a screw. The O-ring 6 is arranged between the sleeve 51 and the seat 52.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A vertical axial flow pump, comprising: the guide vane system comprises a water guide bearing arranged on the periphery of the pump shaft and a guide vane body arranged on the periphery of the water guide bearing, and the guide vane body and the water guide bearing are of split structures;
the vertical axial-flow pump has a detection state, and when the vertical axial-flow pump is in the detection state, part of the guide vane body and the water guide bearing are arranged on the pump shaft.
2. The vertical axial flow pump of claim 1, wherein the impeller system comprises: the impeller comprises an impeller shell, a rotor component arranged in a cavity formed by the impeller shell in an enclosing way, and an impeller arranged on the periphery of the rotor component, wherein the rotor component is fixedly connected with the pump shaft; the impeller shell is of a split structure, and when the vertical axial-flow pump is in a detection state, part of the impeller shell is arranged on the pump shaft.
3. The vertical axial flow pump of claim 2, wherein the vane body, the fluid guide bearing, and the impeller housing are each a two-piece construction.
4. The vertical axial flow pump according to claim 3, wherein the outer periphery of the pump shaft corresponding to the water guide bearing is subjected to a build-up welding treatment or a chrome plating treatment.
5. The vertical axial flow pump of claim 4, wherein the hydrodynamic bearing is a rubber bearing.
6. The vertical axial-flow pump according to claim 1, wherein the guide vane body is fixedly connected with the water guide bearing, a pipeline is arranged inside the guide vane body, one end of the pipeline is connected with an external water supply device, and the other end of the pipeline is communicated with the water guide bearing.
7. The vertical axial flow pump according to claim 6, wherein the vane body has an inner peripheral wall adjacent to the water guide bearing and an outer peripheral wall opposite to the inner peripheral wall, a connecting wall extending in a radial direction of the pump shaft is provided between the inner peripheral wall and the water guide bearing, and the pipe penetrates through the inner peripheral wall and the outer peripheral wall.
8. The vertical axial flow pump according to claim 7, wherein a metal bushing is sleeved on an outer circumference of the water guide bearing, and the connecting wall is connected with the metal bushing.
9. The vertical axial flow pump according to claim 1, wherein an inlet expansion joint is further provided below the impeller system, and the inlet expansion joint is sealed by an O-ring.
10. A vertical axial flow pump, comprising: the pump shaft is followed the axial direction of pump shaft is from the lower impeller system and the stator system that has set gradually from top down, impeller system includes: the pump comprises an impeller shell, a rotor component and an impeller, wherein the rotor component is arranged in a cavity formed by the impeller shell in a surrounding manner, the impeller is arranged on the periphery of the rotor component, the rotor component is fixedly connected with a pump shaft, and the impeller shell is of a split structure;
the vertical axial-flow pump has a detection state, and when the vertical axial-flow pump is in the detection state, part of the impeller shell is arranged on the pump shaft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021308137.0U CN212717188U (en) | 2020-07-07 | 2020-07-07 | Vertical axial-flow pump |
| CN202022541374.8U CN214577736U (en) | 2020-07-07 | 2020-07-07 | Axial-flow pump with washing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021308137.0U CN212717188U (en) | 2020-07-07 | 2020-07-07 | Vertical axial-flow pump |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022541374.8U Division CN214577736U (en) | 2020-07-07 | 2020-07-07 | Axial-flow pump with washing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212717188U true CN212717188U (en) | 2021-03-16 |
Family
ID=74965137
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021308137.0U Active CN212717188U (en) | 2020-07-07 | 2020-07-07 | Vertical axial-flow pump |
| CN202022541374.8U Active CN214577736U (en) | 2020-07-07 | 2020-07-07 | Axial-flow pump with washing function |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022541374.8U Active CN214577736U (en) | 2020-07-07 | 2020-07-07 | Axial-flow pump with washing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN212717188U (en) |
-
2020
- 2020-07-07 CN CN202021308137.0U patent/CN212717188U/en active Active
- 2020-07-07 CN CN202022541374.8U patent/CN214577736U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN214577736U (en) | 2021-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113915133A (en) | Vertical axial-flow pump | |
| RU98498U1 (en) | SUBMERSIBLE CENTRIFUGAL PUMP FOR PUMPING AGGRESSIVE LIQUIDS | |
| JP2010265904A (en) | Pump housing assembly equipped with nesting | |
| US5074764A (en) | Submergible motor pump | |
| US8272823B2 (en) | Sealing arrangement for the attachment of a side plate of a centrifugal pump and an attachment screw used therewith | |
| USRE39228E1 (en) | Field-serviceable solids-handling vertical turbine pump | |
| CN212717188U (en) | Vertical axial-flow pump | |
| JPS6231196B2 (en) | ||
| CA1302783C (en) | Pump | |
| RU2386053C2 (en) | Air distributing system for industrial pumps | |
| US5944482A (en) | Front-removable bearing housing for vertical turbine pump | |
| CN111089081A (en) | Pump case for silicon carbide ceramic submerged slurry pump | |
| CN115628236A (en) | Fluid machinery and pump device | |
| CN210829750U (en) | Chemical raw material delivery pump | |
| CN113898589A (en) | Corrosion-resistant self-priming pump | |
| CN207864239U (en) | Shaft seal structure and submerged pump comprising the shaft seal structure | |
| CN213981206U (en) | Pump for nuclear power plant | |
| CN220539881U (en) | Vertical pump in groove | |
| JP3200725B2 (en) | underwater pump | |
| KR20000019437U (en) | Axial-flow pump | |
| JP7518254B2 (en) | Vertical Pump | |
| CN216342862U (en) | Vertical submerged pump | |
| CN218971439U (en) | Vertical slurry pump protective structure | |
| CN109763983B (en) | Immersed pump | |
| JPH08326691A (en) | Device for preventing foreign matter from invading on submerged bearing in vertical shaft pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |