CN212360289U - High-pressure efficient centrifugal impeller - Google Patents
High-pressure efficient centrifugal impeller Download PDFInfo
- Publication number
- CN212360289U CN212360289U CN202021322210.XU CN202021322210U CN212360289U CN 212360289 U CN212360289 U CN 212360289U CN 202021322210 U CN202021322210 U CN 202021322210U CN 212360289 U CN212360289 U CN 212360289U
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- impeller
- water inlet
- pump body
- wall
- centrifugal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 10
- 210000000476 body water Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to a high-efficient centrifugal impeller of high pressure installs in the centrifugal pump. The centrifugal pump also comprises a pump body, a water inlet and a water outlet. The centrifugal impeller is arranged in the pump body, and the impeller blades of the centrifugal impeller are clamped between the impeller front cover and the impeller rear cover. The center of the front cover of the impeller is provided with a mouth ring, and the outer part of the mouth ring is provided with an annular wall of the impeller which is concentric with the mouth ring; a fit clearance is left between the mouth ring and the inner wall of the water inlet, and the mouth ring is inserted into the water inlet. A gap is also left between the annular wall of the impeller and the outer wall of the water inlet; the water inlet is wrapped between the mouth ring and the annular wall of the impeller. The utility model greatly reduces the opposite impact of fluid on both sides of the clearance at the matching part of the impeller opening ring and the inner wall of the pump body, thereby improving the lift and the efficiency; the structure is simple and easy to implement, does not need to be changed greatly, and can be directly applied to the traditional centrifugal impeller.
Description
Technical Field
The utility model relates to a centrifugal pump technical field specifically is a novel centrifugal pump impeller.
Background
The pump product is one of important general mechanical products in various fields of national economy, and the centrifugal pump occupies a large part of the market of the pump product by virtue of the advantages of large flow and high efficiency. Its main working method is that the fluid gets into from the pump body water inlet, and the rethread centrifugal impeller choma gets into the inside throw away after carrying out the pressure boost of centrifugal impeller, and then flows out from the pump body delivery port again, and wherein centrifugal impeller's choma links to each other with the pump body water inlet, and because during operation motion state's difference and fit tolerance, great clearance has to be left to both cooperations, again because the fluid pressure difference of clearance both sides is great, easily forms the offset through the clearance, finally leads to pressure, efficiency to descend by a wide margin.
Disclosure of Invention
The utility model aims at providing a novel impeller for the centrifugal pump, effectively improve the lift of centrifugal pump and follow efficiency.
The utility model aims at realizing through the following technical scheme:
a high-pressure high-efficiency centrifugal impeller is arranged in a centrifugal pump, and the centrifugal pump also comprises a pump body, a water inlet and a water outlet; the pump body is of a hollow structure; the water inlet is arranged in the center of the front wall of the pump body, the centrifugal impeller is arranged in the pump body, and the centrifugal impeller is formed by combining an impeller front cover, impeller blades and an impeller rear cover; the impeller blades are clamped between the impeller front cover and the impeller rear cover; the center of the front cover of the impeller is provided with a mouth ring, and the outer part of the mouth ring is provided with an annular wall of the impeller which is concentric with the mouth ring; the diameter of the outer wall of the opening ring is smaller than the inner diameter of the water inlet, a fit clearance is reserved between the outer wall of the opening ring and the inner wall of the water inlet, and the opening ring is inserted into the water inlet; the inner diameter of the annular wall of the impeller is larger than the diameter of the outer wall of the water inlet, and a gap is also reserved between the annular wall of the impeller and the outer wall of the water inlet; the water inlet is wrapped between the mouth ring and the annular wall of the impeller.
The water outlet is arranged on the side surface of the pump body, and the water inlet, the water outlet and the pump body are of an integrated structure.
The mouth ring, the impeller annular wall and the impeller front cover are of an integrated structure.
The length of the annular wall of the impeller exceeds the end face of the orifice ring.
The center of the impeller rear cover is provided with a coupling column, and a rotating shaft of the pump is arranged in the coupling column in a tight fit manner to drive the centrifugal impeller to rotate.
The annular walls of the impellers are spaced from each other, are concentric with the opening ring and are arranged on the front cover of the impeller; the pump body annular wall which is matched with the impeller annular wall in quantity is correspondingly arranged in the front wall of the pump body, and the pump body annular wall is arranged on the outer ring of the water inlet and is concentric with the water inlet.
The pump body annular walls are staggered between the impeller annular walls.
The utility model discloses an excellent effect is:
1. the opposite impact of fluid on two sides of a gap at the matching part of the impeller opening ring and the inner wall of the pump body is greatly reduced, and the lift and the efficiency are further improved;
2. the structure is simple and easy to implement, does not need to be changed greatly, and can be directly applied to the traditional centrifugal impeller.
Drawings
FIG. 1 is a cross-sectional view of the centrifugal impeller of the present invention in operation within a pump body;
FIG. 2 is a cross-sectional view of the multi-channel annular wall form of the centrifugal impeller of the present invention in a high lift pump application;
in the figure:
1. a pump body; 1.1, a pump body annular wall; 2. a water inlet; 2.1, matching gaps; 3. an impeller front cover; 3.1, a choma; 3.2, impeller annular wall; 4. an impeller blade; 5. a rear cover of the impeller; 5.1, a coupling column; 6. a rotating shaft; 7. and (7) a water outlet.
Detailed Description
Referring to fig. 1, the utility model relates to a high-pressure high-efficient centrifugal impeller installs in the centrifugal pump. The centrifugal pump also comprises a pump body 1, a water inlet 2 and a water outlet 7. The pump body 1 is hollow structure, and water inlet 2 locates the center of the pump body 1 antetheca, and the pump body 1 side is located to delivery port 7, and water inlet 2, delivery port 7 and the pump body 1 formula structure as an organic whole. The centrifugal impeller is arranged in the pump body 1 and is formed by combining an impeller front cover 3, impeller blades 4 and an impeller rear cover 5; the impeller blades 4 are sandwiched between the impeller front cover 3 and the impeller rear cover 5. An opening ring 3.1 is arranged at the center of the impeller front cover 3, and an impeller annular wall 3.2 concentric with the opening ring 3.1 is arranged outside the opening ring 3.1. The mouth ring 3.1, the impeller annular wall 3.2 and the impeller front cover 3 are of an integrated structure. The diameter of the outer wall of the opening ring 3.1 is smaller than the inner diameter of the water inlet 2, a fit clearance 2.1 is reserved between the opening ring and the inner wall of the water inlet 2, and the opening ring 3.1 is inserted into the water inlet 2. The inner diameter of the annular wall 3.2 of the impeller is larger than the diameter of the outer wall of the water inlet 2, and a gap is also reserved between the annular wall and the outer wall. The length of the impeller annular wall 3.2 exceeds the end surface of the opening ring 3.1, and the water inlet 2 is wrapped between the opening ring 3.1 and the impeller annular wall 3.2.
The center of the impeller rear cover 5 is provided with a coupling column 5.1, and a rotating shaft 6 of the pump is arranged in the coupling column 5.1 in a tight fit manner to drive the centrifugal impeller to rotate.
When the pump lift is high to a certain level, in order to further improve the efficiency and the lift, the high-pressure high-efficiency centrifugal impeller is designed into another structural form shown in fig. 2: the impeller front cover 3 is provided with a plurality of impeller annular walls 3.2 which are mutually separated and are concentric with the opening ring 3.1, meanwhile, the pump body annular walls 1.1 the quantity of which is matched with that of the impeller annular walls 3.2 are correspondingly arranged in the front wall of the pump body 1, the pump body annular walls 1.1 are arranged on the outer ring of the water inlet 2 and are concentric with the water inlet 2, and the pump body annular walls 1.1 are alternately arranged between the impeller annular walls 3.2.
The utility model discloses a theory of operation brief:
when the pump works, because the impeller is in a dynamic state in rotation, the pump body is in a static state, in order to avoid the friction blockage of the impeller, a fit clearance 2.1 needs to be reserved between the mouth ring 3.1 and the water inlet 2, and the fluid on the two sides of the fit clearance 2.1 is larger in pressure difference distance, so that the fluid in the pump body can rush to the fluid in the water inlet 2 through the fit clearance 2.1 to form the opposite rush, and the pump lift and the efficiency are greatly reduced. After the annular wall 3.2 of the impeller is additionally arranged, the direct impact of the fluid in a high-pressure area on the fluid in the water inlet 2 is effectively weakened, and the efficiency and the lift of the pump are improved. On some relatively large-scale pumps, because the difference in pressure is huge inside and outside the fluid, the effect that per increase one annular wall weakens the offset can both bring great efficiency promotion, consequently the utility model discloses the actual annular wall quantity of centrifugal impeller scheme can be decided according to the interval scope of pump lift.
Claims (7)
1. A high-pressure high-efficiency centrifugal impeller is arranged in a centrifugal pump, and the centrifugal pump also comprises a pump body (1), a water inlet (2) and a water outlet (7); the pump body (1) is of a hollow structure; the water inlet (2) is arranged in the center of the front wall of the pump body (1), and the centrifugal impeller is arranged in the pump body (1); the centrifugal impeller is formed by combining an impeller front cover (3), impeller blades (4) and an impeller rear cover (5); the impeller blades (4) are clamped between the impeller front cover (3) and the impeller rear cover (5); the method is characterized in that: an opening ring (3.1) is arranged at the center of the impeller front cover (3), and an impeller annular wall (3.2) concentric with the opening ring (3.1) is arranged outside the opening ring (3.1); the diameter of the outer wall of the mouth ring (3.1) is smaller than the inner diameter of the water inlet (2), a fit clearance (2.1) is reserved between the mouth ring and the inner wall of the water inlet (2), and the mouth ring (3.1) is inserted into the water inlet (2); the inner diameter of the annular wall (3.2) of the impeller is larger than the diameter of the outer wall of the water inlet (2), and a gap is also reserved between the annular wall and the outer wall; the water inlet (2) is wrapped between the mouth ring (3.1) and the annular wall (3.2) of the impeller.
2. The high pressure high efficiency centrifugal impeller of claim 1, wherein: the water outlet (7) is arranged on the side surface of the pump body (1), and the water inlet (2), the water outlet (7) and the pump body (1) are of an integrated structure.
3. The high pressure high efficiency centrifugal impeller of claim 1, wherein: the mouth ring (3.1), the impeller annular wall (3.2) and the impeller front cover (3) are of an integrated structure.
4. The high pressure high efficiency centrifugal impeller of claim 1, wherein: the length of the impeller annular wall (3.2) exceeds the end face of the mouth ring (3.1).
5. The high pressure high efficiency centrifugal impeller of claim 1, wherein: the center of the impeller rear cover (5) is provided with a coupling column (5.1), and a rotating shaft (6) of the pump is arranged in the coupling column (5.1) in a tight fit manner to drive the centrifugal impeller to rotate.
6. The high pressure high efficiency centrifugal impeller of claim 1, 2, 3 or 4, wherein: the impeller annular walls (3.2) are provided with a plurality of mutually separated and concentric with the mouth ring (3.1) and are arranged on the impeller front cover (3); the pump body annular wall (1.1) which is matched with the impeller annular wall (3.2) in quantity is correspondingly arranged in the front wall of the pump body (1), and the pump body annular wall (1.1) is arranged on the outer ring of the water inlet (2) and is concentric with the water inlet (2).
7. The high pressure high efficiency centrifugal impeller of claim 6, wherein: the pump body annular walls (1.1) are arranged alternately between the impeller annular walls (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021322210.XU CN212360289U (en) | 2020-07-06 | 2020-07-06 | High-pressure efficient centrifugal impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021322210.XU CN212360289U (en) | 2020-07-06 | 2020-07-06 | High-pressure efficient centrifugal impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212360289U true CN212360289U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021322210.XU Expired - Fee Related CN212360289U (en) | 2020-07-06 | 2020-07-06 | High-pressure efficient centrifugal impeller |
Country Status (1)
| Country | Link |
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| CN (1) | CN212360289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749925A (en) * | 2020-07-06 | 2020-10-09 | 彭定泽 | High-pressure efficient centrifugal impeller |
-
2020
- 2020-07-06 CN CN202021322210.XU patent/CN212360289U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749925A (en) * | 2020-07-06 | 2020-10-09 | 彭定泽 | High-pressure efficient centrifugal impeller |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Peng Dingze Document name: payment instructions |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |