CN210531225U - Guide vane sleeve made of composite material - Google Patents
Guide vane sleeve made of composite material Download PDFInfo
- Publication number
- CN210531225U CN210531225U CN201920916237.2U CN201920916237U CN210531225U CN 210531225 U CN210531225 U CN 210531225U CN 201920916237 U CN201920916237 U CN 201920916237U CN 210531225 U CN210531225 U CN 210531225U
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- CN
- China
- Prior art keywords
- guide vane
- impeller
- annular step
- sleeve
- bottom end
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- 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.)
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Abstract
The utility model discloses a guide vane sleeve made of composite material, which is cylindrical and is made of continuous carbon fiber composite material, the guide vane sleeve is sleeved on the rear hub of an impeller and is in clearance fit with the outer circumferential surface of the rear hub of the impeller, and the guide vane sleeve is embedded on a guide vane through a gap screw; the outer wall surface of the guide vane sleeve is provided with a first-stage annular step, the bottom end of the guide vane is provided with a notch matched with the first-stage annular step, the notch at the bottom end of the guide vane is clamped on the first-stage annular step, and the bottom end of the guide vane and the first-stage annular step are embedded together through a seam-riding screw. The utility model discloses a combined material's stator cover, stator cover are formed by continuous carbon-fibre composite processing, have the scratch not, prevent to chew advantages such as dead, anti chemical corrosion nature is good, can reduce the clearance between impeller and stator cover by a wide margin, reduce the volume of revealing, produce the hydrostatic support effect, improve pump rotor dynamic characteristic, guarantee to operate more stably.
Description
Technical Field
The utility model relates to a combined material's stator cover.
Background
At present, in order to protect important parts of an impeller and a guide vane of a multistage centrifugal pump, a guide vane sleeve is usually added between the impeller and the guide vane, but the guide vane sleeve made of conventional materials and a rear hub of the impeller still have the risk of abrasion or occlusion.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing a combined material's stator cover, the stator cover is formed by continuous carbon-fibre composite processing, has advantages such as scratch not, prevent to chew up to die, anti chemical corrosion nature is good, can reduce the clearance between impeller and stator cover by a wide margin, reduces the volume of revealing, produces the hydrostatic supporting effect, improves pump rotor dynamic characteristic, guarantees to move more stably.
The technical scheme for realizing the purpose is as follows: a guide vane sleeve made of a composite material is installed on a rear hub of an impeller, the guide vane sleeve is cylindrical, the guide vane sleeve is made of a continuous carbon fiber composite material, the guide vane sleeve is sleeved on the rear hub of the impeller and is in clearance fit with the outer circumferential surface of the rear hub of the impeller, and the guide vane sleeve is embedded in a guide vane through a gap-riding screw;
the outer wall surface of the guide vane sleeve is provided with a first-stage annular step, the bottom end of the guide vane is provided with a notch matched with the first-stage annular step, the notch at the bottom end of the guide vane is clamped on the first-stage annular step, and the bottom end of the guide vane and the first-stage annular step are embedded together through a seam-riding screw.
The guide vane sleeve made of the composite material is characterized in that the impeller is connected to the shaft key.
The utility model discloses a combined material's stator cover, stator cover are formed by continuous carbon-fibre composite processing, have the scratch not, prevent to chew advantages such as dead, anti chemical corrosion nature is good, can reduce the clearance between impeller and stator cover by a wide margin, reduce the volume of revealing, produce the hydrostatic support effect, improve pump rotor dynamic characteristic, guarantee to operate more stably.
Drawings
FIG. 1 is a structural diagram of a composite guide vane sleeve of the present invention;
fig. 2 is an exploded view of the composite guide vane cover of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:
please refer to fig. 1 and fig. 2, the best embodiment of the present invention, a composite material guide vane sleeve 1, guide vane sleeve 1 is cylindrical, guide vane sleeve 1 is made of continuous carbon fiber composite, guide vane sleeve 1 is sleeved on the rear hub of impeller 2, guide vane sleeve 1 is in clearance fit with the outer circumferential surface of the rear hub of impeller 2, a one-level annular step 11 is arranged on the outer wall surface of guide vane sleeve 1, the bottom end of guide vane 3 is provided with a notch matched with one-level annular step 11, the notch of the bottom end of guide vane 3 is clamped on one-level annular step 11, the bottom end of guide vane 3 and one-level annular step 11 are embedded together by a gap-riding screw 5. The impeller 2 is connected to the shaft key 4.
The utility model discloses a combined material's stator cover, stator cover are formed by continuous carbon-fibre composite processing, compare with the stator cover that conventional material made, have not the scratch, prevent to chew advantages such as dead, anti chemical corrosion nature is good. The guide vane sleeve 1 is in clearance fit with the outer circumferential surface of the rear hub of the impeller 2, so that the clearance between the impeller 2 and the guide vane sleeve 1 can be greatly reduced, the leakage amount is reduced, the hydrostatic support effect is generated, the dynamic characteristic of a pump rotor is improved, and the operation is more stable.
The guide vane sleeve 1 can be formed by directly hot-pressing and integrally molding continuous carbon fiber composite materials.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (2)
1. A guide vane sleeve made of a composite material is installed on a rear hub of an impeller and is characterized in that the guide vane sleeve is cylindrical and is made of a continuous carbon fiber composite material, the guide vane sleeve is sleeved on the rear hub of the impeller and is in clearance fit with the outer circumferential surface of the rear hub of the impeller, and the guide vane sleeve is inlaid on a guide vane through a gap-riding screw;
the outer wall surface of the guide vane sleeve is provided with a first-stage annular step, the bottom end of the guide vane is provided with a notch matched with the first-stage annular step, the notch at the bottom end of the guide vane is clamped on the first-stage annular step, and the bottom end of the guide vane and the first-stage annular step are embedded together through a seam-riding screw.
2. The composite vane sleeve as set forth in claim 1 wherein said impeller is attached to a shaft key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920916237.2U CN210531225U (en) | 2019-06-18 | 2019-06-18 | Guide vane sleeve made of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920916237.2U CN210531225U (en) | 2019-06-18 | 2019-06-18 | Guide vane sleeve made of composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210531225U true CN210531225U (en) | 2020-05-15 |
Family
ID=70595031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920916237.2U Active CN210531225U (en) | 2019-06-18 | 2019-06-18 | Guide vane sleeve made of composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210531225U (en) |
-
2019
- 2019-06-18 CN CN201920916237.2U patent/CN210531225U/en active Active
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