CN222502157U - Semi-open type reverse vane impeller for centrifugal pump for conveying dangerous process fluid - Google Patents
Semi-open type reverse vane impeller for centrifugal pump for conveying dangerous process fluid Download PDFInfo
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- CN222502157U CN222502157U CN202420970368.XU CN202420970368U CN222502157U CN 222502157 U CN222502157 U CN 222502157U CN 202420970368 U CN202420970368 U CN 202420970368U CN 222502157 U CN222502157 U CN 222502157U
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Abstract
本实用新型涉及离心泵叶轮技术领域，公开了一种用于输送危险工艺流体离心泵的半开式反向叶片叶轮，包括轮盘、叶片和环筒，环筒为圆形，环筒连接固定在轮盘的一侧表面，环筒位于轮盘表面的中心位置，叶片由环筒的内侧延伸至轮盘的另一侧，叶片设置有五个并均匀的分布在轮盘的表面，叶片之间形成有导槽。本实用新型技术方案通过使用五角星形叶轮的独特设计，并使半开式叶片朝后向泵盖，当叶片存在磨损问题时，叶片与后泵盖之间间隙容易通过泵盖而控制改变，在不拆泵的情况下可调整以便重置出厂原始性能，较为实用，适合广泛推广与使用。
The utility model relates to the technical field of centrifugal pump impellers, and discloses a semi-open reverse blade impeller for a centrifugal pump for conveying hazardous process fluids, including a wheel disc, blades and an annular cylinder. The annular cylinder is circular and connected and fixed to one side surface of the wheel disc. The annular cylinder is located at the center of the wheel disc surface. The blades extend from the inner side of the annular cylinder to the other side of the wheel disc. Five blades are provided and evenly distributed on the surface of the wheel disc, and guide grooves are formed between the blades. The technical solution of the utility model uses the unique design of a five-pointed star-shaped impeller, and makes the semi-open blades face backward to the pump cover. When the blades have wear problems, the gap between the blades and the rear pump cover can be easily controlled and changed through the pump cover. It can be adjusted without disassembling the pump to reset the original factory performance. It is more practical and suitable for wide promotion and use.
Description
Technical Field
The utility model relates to the technical field of centrifugal pump impellers, in particular to a semi-open type reverse vane impeller for a centrifugal pump for conveying dangerous process fluid.
Background
The centrifugal pump is a pump for conveying liquid by virtue of centrifugal force generated when the impeller rotates, can be used in the fields of chemical process devices, papermaking and the like, and is used for conveying dangerous industrial fluids at-75 ℃ to +370 ℃ or slurries with certain concentration, wherein the maximum particle diameter is less than or equal to 25mm, the maximum soft particle content is less than or equal to 35%, and the maximum hard particle content is less than or equal to 10%.
The impeller is an important component of the centrifugal pump, the performance of the impeller directly influences the performance of the centrifugal pump, and the existing semi-open impeller structure is that the impeller is arranged on a disc of a rear cover plate, a front cover plate is not arranged, an opening faces to an inlet of a pump body, when the blades are severely worn, the clearance between the blades and the pump cover needs to be adjusted to enable the blades and the pump cover to normally extract fluid, and at the moment, the pump body needs to be disassembled, so that the adjustment is inconvenient. We therefore propose a semi-open counter-vane impeller for a centrifugal pump for delivering hazardous process fluids.
Disclosure of utility model
The present utility model aims to provide a semi-open reverse vane impeller for a centrifugal pump for conveying dangerous process fluids, which solves the problems set forth in the background art by using a unique design of a pentagram impeller and making the semi-open vane face to the back pump cover, when the vane has abrasion problem, the gap between the vane and the back pump cover is easy to be controlled and changed by the pump cover, and the gap can be adjusted to reset the original performance of the factory without disassembling the pump.
The semi-open type reverse vane impeller for the centrifugal pump for conveying dangerous process fluid comprises a wheel disc, vanes and a ring barrel, wherein the ring barrel is circular, the ring barrel is fixedly connected to one side surface of the wheel disc, the ring barrel is positioned in the center of the surface of the wheel disc, the vanes extend from the inner side of the ring barrel to the other side of the wheel disc, the vanes are provided with five evenly distributed on the surface of the wheel disc, and guide grooves are formed among the vanes.
Through adopting above-mentioned technical scheme, utilize the rim plate rotation to drive the blade and rotate together, utilize the blade to carry out extraction pumping to the fluid, one side that the blade is towards the pump cover does not have the apron setting, clearance apart from the blade when can adjusting the pump cover installation, influence extraction effect when avoiding the blade wearing and tearing.
Optionally, a positioning block is arranged in the middle of the surface of the wheel disc, a positioning hole is formed in the surface of the positioning block, and the positioning hole is located at one side, far away from the ring barrel, of the wheel disc.
By adopting the technical scheme, the positioning holes are matched with the shaft body of the centrifugal pump for positioning and mounting.
Optionally, the rim plate surface of locating piece outer lane has seted up the mounting hole, and the mounting hole evenly is provided with a plurality of and runs through the rim plate.
Through adopting above-mentioned technical scheme, the mounting hole can pass through the bolt, realizes the fixed purpose of installation.
Alternatively, the wheel disc, the blades and the ring cylinder are connected as a unitary structure by casting.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
1. according to the technical scheme, the unique design of the pentagram impeller is adopted, the semi-open type blade faces the backward pump cover, when the abrasion problem exists on the blade, the gap between the blade and the back pump cover is easy to control and change through the pump cover, and the gap can be adjusted under the condition of not disassembling the pump so as to reset the original performance of a factory.
2. The application has the advantages of expanded performance and specification, more standard and clear profile, more reasonable grading, more convenient user profile selection, improved universalization and standardization degree, small volume and light weight of the pump with the same orifice, and saved manufacturing and transportation cost.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the front end construction of a semi-open counter-vane impeller of a centrifugal pump for transporting hazardous process fluids according to the present utility model;
FIG. 2 is a schematic view of the rear end construction of a semi-open counter-vane impeller of the present utility model for use in a centrifugal pump for transporting hazardous process fluids;
FIG. 3 is a schematic view of the front end construction of a second embodiment of a semi-open counter-vane impeller of a centrifugal pump for transporting hazardous process fluids according to the present utility model;
fig. 4 is a schematic view of the rear end construction of a second embodiment of a semi-open counter-vane impeller of a centrifugal pump for transporting hazardous process fluids according to the present utility model.
In the figure, 1, a wheel disc, 11, a blade, 111, a guide groove, 12, a positioning block, 121, a positioning hole, 13, a mounting hole, 2 and a ring barrel.
Detailed Description
Example 1
Referring to fig. 1-2, the utility model provides a technical scheme that a semi-open type reverse vane impeller for a centrifugal pump for conveying dangerous process fluid comprises a wheel disc 1, vanes 11 and a ring barrel 2, wherein a positioning block 12 is arranged in the middle of the surface of the wheel disc 1, a positioning hole 121 is formed in the surface of the positioning block 12, the positioning hole 121 is positioned at one side of the wheel disc 1 far away from the ring barrel 2, mounting holes 13 are formed in the surface of the wheel disc 1 on the outer ring of the positioning block 12, the plurality of mounting holes 13 are uniformly formed and penetrate through the wheel disc 1, and when the centrifugal pump is mounted, the positioning hole 121 is connected with a shaft body of the centrifugal pump to be locked, and the wheel disc 1 is locked and fixed in an auxiliary manner by utilizing bolts to be matched with the mounting holes 13, so that the wheel disc 1 can be driven to rotate by the shaft body.
The ring section of thick bamboo 2 is circular, and ring section of thick bamboo 2 is connected and is fixed at the front end surface of rim plate 1, and ring section of thick bamboo 2 is located the central point of rim plate 1 front end surface, and blade 11 is provided with the same five of size, and the inboard of ring section of thick bamboo 2 extends to the opposite side of rim plate 1, and the even distribution in rim plate 1 is at the surface of rim plate 1 simultaneously to blade 11, is formed with guide slot 111 between blade 11 for the impeller is whole to be pentagram impeller, rim plate 1, blade 11 and ring section of thick bamboo 2 are connected into overall structure through the casting shaping.
Example two
Referring to fig. 3-4, the utility model provides a technical scheme that a semi-open type reverse vane impeller for a centrifugal pump for conveying dangerous process fluid comprises a wheel disc 1, vanes 11 and a ring barrel 2, wherein a positioning block 12 is arranged in the middle of the surface of the wheel disc 1, a positioning hole 121 is formed in the surface of the positioning block 12, the positioning hole 121 is positioned at one side of the wheel disc 1 far away from the ring barrel 2, mounting holes 13 are formed in the surface of the wheel disc 1 on the outer ring of the positioning block 12, the plurality of mounting holes 13 are uniformly formed and penetrate through the wheel disc 1, and when the centrifugal pump is mounted, the positioning hole 121 is connected with a shaft body of the centrifugal pump to be locked, and the wheel disc 1 is locked and fixed in an auxiliary manner by utilizing bolts to be matched with the mounting holes 13, so that the wheel disc 1 can be driven to rotate by the shaft body.
The ring cylinder 2 is circular, the ring cylinder 2 is fixedly connected to the front end surface of the wheel disc 1, the ring cylinder 2 is positioned in the center of the front end surface of the wheel disc 1, the blades 11 are six with the same size, the blades 11 are uniformly distributed and extend to the other side of the wheel disc 1 from the inner side of the ring cylinder 2, the blades 11 are uniformly distributed on the surface of the wheel disc 1, guide grooves 111 are formed between the blades 11, the whole impeller is a hexagonal impeller, and the wheel disc 1, the blades 11 and the ring cylinder 2 are connected into a whole structure through casting molding
When the centrifugal pump is used, the hexagonal or pentahedral impeller is used according to the specific rotation speed and the flow speed determined by the geometric dimension of the impeller, then the wheel disc 1 is mutually matched and arranged on the shaft body of the centrifugal pump through the positioning hole 121 and the mounting hole 13, one side containing the annular cylinder 2 faces to the inlet of the centrifugal pump, the integral structure of the wheel disc 1 and the blades 11 is driven to rotate when the centrifugal pump is started, fluid enters from the inlet of the centrifugal pump and then enters into the inner side of the annular cylinder 2, the fluid is thrown to the other side of the wheel disc 1 along the guide groove 111 under the action of the blades 11, and finally the fluid is discharged from the outlet of the centrifugal pump, so that the purpose of centrifugal extraction of the fluid is realized.
Claims (4)
1. A semi-open type reverse vane impeller for a centrifugal pump for conveying dangerous process fluid comprises a wheel disc (1), vanes (11) and a ring barrel (2), and is characterized in that the ring barrel (2) is circular, the ring barrel (2) is fixedly connected to one side surface of the wheel disc (1), the ring barrel (2) is located at the center of the surface of the wheel disc (1), the vanes (11) extend from the inner side of the ring barrel (2) to the other side of the wheel disc (1), the vanes (11) are provided with five evenly distributed on the surface of the wheel disc (1), and guide grooves (111) are formed among the vanes (11).
2. The semi-open type reverse vane impeller for the centrifugal pump for conveying dangerous process fluid according to claim 1, wherein a positioning block (12) is arranged in the middle of the surface of the wheel disc (1), a positioning hole (121) is formed in the surface of the positioning block (12), and the positioning hole (121) is located on one side, far away from the annular cylinder (2), of the wheel disc (1).
3. The semi-open type reverse vane impeller for the centrifugal pump for conveying dangerous process fluid according to claim 2, wherein the surface of the wheel disc (1) of the outer ring of the positioning block (12) is provided with mounting holes (13), and a plurality of mounting holes (13) are uniformly formed and penetrate through the wheel disc (1).
4. A semi-open counter-vane impeller for centrifugal pumps for the transportation of dangerous process fluids according to claim 1, characterized in that said wheel disc (1), vane (11) and ring cylinder (2) are connected as a unitary structure by casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420970368.XU CN222502157U (en) | 2024-05-07 | 2024-05-07 | Semi-open type reverse vane impeller for centrifugal pump for conveying dangerous process fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420970368.XU CN222502157U (en) | 2024-05-07 | 2024-05-07 | Semi-open type reverse vane impeller for centrifugal pump for conveying dangerous process fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222502157U true CN222502157U (en) | 2025-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420970368.XU Active CN222502157U (en) | 2024-05-07 | 2024-05-07 | Semi-open type reverse vane impeller for centrifugal pump for conveying dangerous process fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222502157U (en) |
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2024
- 2024-05-07 CN CN202420970368.XU patent/CN222502157U/en active Active
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