CN216518857U - Guide vane, guide vane type pumping chamber and pump - Google Patents
Guide vane, guide vane type pumping chamber and pump Download PDFInfo
- Publication number
- CN216518857U CN216518857U CN202123205842.5U CN202123205842U CN216518857U CN 216518857 U CN216518857 U CN 216518857U CN 202123205842 U CN202123205842 U CN 202123205842U CN 216518857 U CN216518857 U CN 216518857U
- Authority
- CN
- China
- Prior art keywords
- guide vane
- water
- base body
- water outlet
- impeller
- 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
Abstract
The utility model relates to the technical field of pumps, and provides a guide vane, a guide vane type pumping chamber and a pump for solving the technical problem of larger pump volume, wherein the guide vane comprises a base body provided with a shaft hole, and one end surface of the base body is connected with a positive guide vane through a transition section; the side wall of the base body is provided with a water absorption flow passage which is communicated to the shaft hole of the base body from the side wall of the base body along the direction vertical to the axis of the base body; the water absorption flow channel is communicated with the shaft hole of the positive guide vane; the substrate is also provided with a water outlet flow passage which penetrates through the substrate along the axis direction of the substrate and staggers the water absorption flow passage. A pump comprises a guide vane type pumping chamber, wherein the guide vane type pumping chamber comprises a middle section, guide vanes and a water outlet section which are manufactured through split type processing. The water suction flow passage and the water outlet flow passage are integrated on the guide vane, and the water suction flow passage and the water outlet flow passage share the same axial hole on the impeller, so that the axial structure is more compact, and the axial size is reduced.
Description
Technical Field
The utility model relates to the technical field of pumps.
Background
In order to improve the cavitation resistance of a common multi-stage pump, a first-stage impeller adopts a double-suction impeller, and in order to ensure that an impeller inlet has sufficient flow, a pressurized-water chamber (comprising a middle section, a guide vane and a water outlet section) conventionally adopts an integral casting structure so as to avoid interference between a diffusion pipe of the pressurized-water chamber and an impeller inlet suction area. Because of adopting the casting structure, casting defects can be caused inevitably, and because of the limitation of the casting process, the flow passage in the pumping chamber is inevitably bent, so that the axial size of the casting is larger, and the volume of the pump is larger.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the technology, the utility model provides a guide vane, and solves the technical problem of how to provide a guide vane structure with a more compact axial structure.
In order to solve the technical problem, the utility model provides a guide vane which comprises a base body provided with a shaft hole, wherein one end face of the base body is connected with a positive guide vane through a transition section; the side wall of the base body is provided with a water absorption flow channel which penetrates from the side wall of the base body to the shaft hole of the base body along the direction vertical to the axis of the base body;
the shaft hole of the base body is communicated with the shaft hole of the positive guide vane through the shaft hole of the transition section, so that the water absorption flow passage is communicated with the shaft hole of the positive guide vane;
the water-absorbing base is characterized in that a water outlet flow channel is further arranged on the base body, penetrates through the base body along the axis direction of the base body, and is staggered with the water-absorbing flow channel.
Furthermore, the shaft hole of the base body is a step hole, a guide plate is arranged on the step surface of the step hole, and the guide plate is opposite to the water absorption flow channel.
The utility model also provides a guide vane type pumping chamber which comprises a middle section, a guide vane and a water outlet section, wherein the middle section, the guide vane and the water outlet section are manufactured by split processing; the guide vane provided by the utility model is adopted; one end of the matrix, which is provided with the positive guide vane, is hermetically connected with the middle section, and the other end of the matrix is hermetically connected with the water outlet section; and the water outlet section is provided with a water outlet through hole communicated with the water outlet flow channel of the base body.
The utility model also provides a pump, which comprises the guide vane type pumping chamber and the impeller; the guide vane type pumping chamber is sleeved on the pump shaft in a penetrating way and is fixed on the water outlet pipe through the water outlet section; the impeller is connected to the pump shaft in a transmission manner and is accommodated in the middle section; and the water suction surface of the impeller is communicated with the shaft hole of the positive guide vane, so that the water suction flow channel is communicated with the water suction port of the impeller.
Further, the impeller is a double-suction impeller, and a water inlet is formed in the middle section; and one water suction surface of the double-suction impeller is communicated with the water inlet, and the other water suction surface of the double-suction impeller is communicated with the water suction flow channel.
Compared with the prior art, the utility model has the advantages that:
1. the water suction flow passage and the water outlet flow passage are integrated on the guide vane, and the water suction flow passage and the water outlet flow passage share the same axial hole on the impeller, so that the axial structure is more compact, and the axial size is reduced.
2. The guide plate arranged corresponding to the water absorption flow channel eliminates the pre-rotation of fluid entering the impeller inlet, and stabilizes the flowing state of the fluid at the impeller inlet.
3. The impeller is accommodated in the middle section, so that the middle section and the rear surface of the positive guide vane form an annular cavity, and liquid discharged by the impeller is collected conveniently.
Drawings
FIG. 1 is a cross-sectional view of a guide vane in this embodiment;
FIG. 2 is a top view of a guide vane in this embodiment;
FIG. 3 is a cross-sectional view of the exit section of this embodiment;
FIG. 4 is a top view of the water exit section of this embodiment;
FIG. 5 is a schematic diagram of the construction of the cartridge pump in this embodiment;
description of reference numerals: guide vane-1, water absorption flow passage-1-1, water outlet flow passage-1-2, guide plate-1-3, positive guide vane-1-4, middle section-2, annular cavity-2-1, water outlet section-3, water outlet through hole-3-1, impeller-4 and barrel bag-5.
Detailed Description
The present invention will be described with reference to the accompanying drawings.
Referring to fig. 2 and 3, a guide vane 1 includes a base body provided with a shaft hole, and one end surface of the base body is connected with the positive guide vane 1 through a transition section; the side wall of the base body is provided with a water absorption flow channel 1-1, and the water absorption flow channel 1-1 penetrates from the side wall of the base body to the shaft hole of the base body along the direction vertical to the axis of the base body;
the shaft hole of the base body is communicated with the shaft hole of the positive guide vane 1 through the shaft hole of the transition section, so that the water absorption flow passage 1-1 is communicated with the shaft hole of the positive guide vane 1-4;
the substrate is also provided with a water outlet flow channel which penetrates through the substrate along the axis direction of the substrate and is staggered with the water absorption flow channel 1-1.
In the specific embodiment, the shaft hole of the base body is a step hole, the step surface of the step hole is provided with a guide plate 1-3, and the guide plate 1-3 is over against the water absorption flow passage 1-1.
In the specific embodiment, the water absorbing flow channels 1-1 are uniformly distributed along the circumferential direction of the side wall of the base body, and a water outlet flow channel is arranged between every two adjacent water absorbing flow channels 1-1.
The guide vane 1 is used in a pumping chamber to obtain a guide vane type pumping chamber, and as shown in a reference figure 3-5, the guide vane type pumping chamber comprises a middle section 2, a guide vane 1 and a water outlet section 3 which are manufactured through split type processing; one end of the matrix, which is provided with the positive guide vanes 1-4, is hermetically connected with the middle section 2, and the other end of the matrix is hermetically connected with the water outlet section 3; the water outlet section 3 is provided with a water outlet through hole 3-1 communicated with the water outlet flow channel of the substrate; and two ends of the matrix are axially fixed with the middle section 2 and the water outlet section 3 through spigot structures respectively and are axially sealed with the middle section 2 and the water outlet section 3 through sealing rings respectively.
The guide vane type pumping chamber provided by the utility model can be used for a cartridge 5 pump or other double-shell type pumps, and the specific embodiment is explained by using the cartridge 5 pump.
Referring to fig. 5, a cartridge 5 pump includes a guide vane 1 type pumping chamber, an impeller 4 and a cartridge 5; the guide vane type pumping chamber is sleeved on the pump shaft in a penetrating way and is fixed on the water outlet pipe through the water outlet section 3; the impeller 4 is connected to the pump shaft in a transmission manner and is accommodated in the middle section 2; the water suction surface of the impeller 4 is communicated with the shaft hole of the positive guide vane 1-4, so that the water suction flow passage 1-1 is communicated with the water suction port of the impeller 4.
In the present embodiment, the impeller 4 is a double-suction impeller 4, and the middle section 2 is provided with a water inlet; one water suction surface of the double-suction impeller 4 is communicated with the water inlet, and the other water suction surface of the double-suction impeller 4 is communicated with the water suction flow channel 1-1.
In the specific embodiment, the middle section 2, the guide vane 1 and the water outlet section 3 are machined by adopting forged pieces, and the water outlet guide vane has the characteristics of simple integral structure and short axial dimension. An open type positive guide vane 1-4 is adopted, an annular cavity 2-1 is formed behind the middle section 2 and the positive guide vane 1-4 so as to facilitate the collection of liquid, 3-5 water outlet flow channels are arranged behind the annular cavity 2-1 and are connected with a flow channel of the water outlet section 3 so as to facilitate the fluid to flow into or out of an inlet of a lower-stage impeller 4; the middle of the adjacent water outlet flow channel is provided with a water absorbing flow channel 1-1, and a guide plate 1-3 is arranged opposite to the water absorbing flow channel 1-1 so as to eliminate the prerotation of the fluid entering the inlet of the impeller 4 and stabilize the flowing state of the fluid at the inlet of the impeller 4.
The guide vane 1 and the water outlet section 3 adopt end face sealing in the flow outlet channel, the guide vane 1, the middle section 2 and the outer circle of the water outlet section 3 adopt spigot positioning, and a radial O-shaped ring is added, so that the structure not only seals the water outlet section 3, but also can ensure the axial size required by end face sealing.
In addition, the sizes and the numbers of the water outlet flow passage and the water suction flow passage 1-1 are determined according to the flow quantity and the number of the blades of the positive guide vane 1-4.
Claims (7)
1. A guide vane, characterized by: the guide vane structure comprises a base body provided with a shaft hole, wherein one end face of the base body is connected with a positive guide vane through a transition section; the side wall of the base body is provided with a water absorption flow channel which penetrates from the side wall of the base body to the shaft hole of the base body along the direction vertical to the axis of the base body;
the shaft hole of the base body is communicated with the shaft hole of the positive guide vane through the shaft hole of the transition section, so that the water absorption flow passage is communicated with the shaft hole of the positive guide vane;
the water-absorbing base is characterized in that a water outlet flow channel is further arranged on the base body, penetrates through the base body along the axis direction of the base body, and is staggered with the water-absorbing flow channel.
2. The guide vane according to claim 1, characterized in that: the shaft hole of the base body is a step hole, a guide plate is arranged on the step surface of the step hole, and the guide plate is opposite to the water absorption flow channel.
3. The guide vane according to claim 1, characterized in that: the water absorbing flow channels are uniformly distributed along the circumferential direction of the side wall of the base body, and a water outlet flow channel is arranged between every two adjacent water absorbing flow channels.
4. The utility model provides a stator formula pumping chamber which characterized in that: comprises a middle section, a guide vane and a water outlet section which are manufactured by split processing; the guide vane is the guide vane as claimed in any one of claims 1-3; one end of the matrix, which is provided with the positive guide vane, is hermetically connected with the middle section, and the other end of the matrix is hermetically connected with the water outlet section; and the water outlet section is provided with a water outlet through hole communicated with the water outlet flow channel of the base body.
5. The vane pumping chamber of claim 4, wherein: and two ends of the matrix are axially fixed with the middle section and the water outlet section through spigot structures respectively and are sealed with the middle section and the water outlet section through sealing rings respectively.
6. A pump, characterized by: comprises the guide vane type pressurized water chamber and the impeller according to claim 4; the guide vane type pumping chamber is sleeved on the pump shaft in a penetrating way and is fixed on the water outlet pipe through the water outlet section; the impeller is connected to the pump shaft in a transmission manner and is accommodated in the middle section; and the water suction surface of the impeller is communicated with the shaft hole of the positive guide vane, so that the water suction flow channel is communicated with the water suction port of the impeller.
7. The pump of claim 6, wherein: the impeller is a double-suction impeller, and a water inlet is formed in the middle section; and one water suction surface of the double-suction impeller is communicated with the water inlet, and the other water suction surface of the double-suction impeller is communicated with the water suction flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123205842.5U CN216518857U (en) | 2021-12-20 | 2021-12-20 | Guide vane, guide vane type pumping chamber and pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123205842.5U CN216518857U (en) | 2021-12-20 | 2021-12-20 | Guide vane, guide vane type pumping chamber and pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216518857U true CN216518857U (en) | 2022-05-13 |
Family
ID=81500754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123205842.5U Active CN216518857U (en) | 2021-12-20 | 2021-12-20 | Guide vane, guide vane type pumping chamber and pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216518857U (en) |
-
2021
- 2021-12-20 CN CN202123205842.5U patent/CN216518857U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101922451A (en) | Multistage centrifugal pump | |
| CN104895800A (en) | Multi-stage submersible pump system | |
| CN110657098A (en) | Radial series high-pressure vortex pump | |
| CN216518857U (en) | Guide vane, guide vane type pumping chamber and pump | |
| TWM523767U (en) | High level water storage and guiding device and self-priming pump | |
| CN203756551U (en) | Multi-stage self-priming centrifugal pump | |
| CN115573919B (en) | Vertical self-priming pump structure with cavitation and hydraulic performance | |
| CN210484178U (en) | Combined guide vane type pump | |
| CN106640667A (en) | Flow diversion shell type double-stage double-suction centrifugal pump | |
| CN201627724U (en) | Vertical multi-stage centrifugal pump | |
| CN215566829U (en) | Stepped spiral groove annular dynamic sealing structure of water outlet section of self-balancing multi-stage pump | |
| CN203035616U (en) | Pumping chamber for volute mixed-flow pump | |
| CN107120314A (en) | Axle envelope formula core main pump pumping chamber | |
| CN215890582U (en) | Horizontal two-stage low-cavitation high-flow centrifugal pump | |
| CN103573692B (en) | A kind of Multifunctional self sucking centrifugal pump impeller vane structure | |
| CN101560992A (en) | Two-blade impeller | |
| CN215672847U (en) | A prevent leaking positive and negative final stage and flow through subassembly for self-balancing multistage centrifugal pump | |
| CN218407810U (en) | Special pump for modular oilfield long-distance pipeline | |
| CN216077694U (en) | Balance pipe system for improving cavitation resistance and axial force balance capability of multistage pump | |
| CN212928298U (en) | Multi-stage pump impeller capable of improving efficiency of water pump and reducing interstage leakage | |
| CN215860982U (en) | Three-volute structure of pumping chamber at suction section of double-suction multistage centrifugal pump | |
| WO2019043730A1 (en) | Impeller | |
| CN218934752U (en) | Vertical vortex pipeline pump | |
| CN216950985U (en) | Volute casing | |
| CN209990705U (en) | Stable multi-stage centrifugal pump axial force balance mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |