CN213235458U - Novel front-located shaft type tubular pump device - Google Patents
Novel front-located shaft type tubular pump device Download PDFInfo
- Publication number
- CN213235458U CN213235458U CN202022217052.8U CN202022217052U CN213235458U CN 213235458 U CN213235458 U CN 213235458U CN 202022217052 U CN202022217052 U CN 202022217052U CN 213235458 U CN213235458 U CN 213235458U
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- shaft
- guide bearing
- pump device
- water
- tubular pump
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 230000007704 transition Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
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Abstract
A novel front-located shaft type tubular pump device belongs to the technical field of hydraulic engineering pump stations and is mainly used for large-flow low-lift pump stations. The utility model discloses creatively with leading shaft tubular pump device's water pump guide bearing from the wheel hub internal migration to the bulb of guide vane body, provided a novel leading shaft tubular pump device, can effectively subtract the pump shaft length of leading shaft tubular pump device of short to change the dry-type with water pump guide bearing by the wet-type, when keeping leading shaft tubular pump device hydraulic performance excellent, greatly improved shafting stability and guide bearing's reliability. The utility model discloses think about ingenious, novel structure, implement conveniently, can overcome current leading shaft tubular pump device's shortcoming effectively, fundamentally has guaranteed the stability of large-scale leading shaft tubular pump device operation.
Description
Technical Field
The utility model belongs to the technical field of hydraulic engineering pump station, concretely relates to novel leading shaft formula tubular pump device, large-traffic low-lift pump station of mainly used.
Background
The demand of the high-flow low-lift tubular pump device applied to the fields of water resource allocation, flood control and drainage, water environment improvement and the like in plain areas is continuously increased under the situation that the global climate is gradually warmed and the national economy of China is rapidly developed. The front-located shaft type tubular pump device is one of the main large and medium tubular pump device types, the shaft is of an open concrete structure, and main devices such as a driving motor and a reduction gearbox of a water pump are all arranged in the shaft. The shaft of the front shaft type pump device is arranged in the water inlet flow channel, the guide vane body is positioned between the water pump impeller chamber and the water outlet flow channel, and the water pump guide bearing is arranged in the guide vane body. The arrangement structure has the defects that the pump shaft length and the guide bearing are wet, the stability of a unit shaft system and the reliability of the guide bearing are seriously influenced, and the application of the front-mounted shaft type tubular pump device in an ultra-low-lift large-flow pump station is greatly limited.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses creatively with water pump guide bearing from the guide vane body wheel hub internal shift to the bulb, provided a novel leading shaft tubular pump device, can effectively subtract the pump shaft length of leading shaft tubular pump device, when keeping leading shaft tubular pump device hydraulic performance excellent, changed water pump guide bearing into the dry-type by the wet-type simultaneously, greatly improved shafting stability and guide bearing's reliability.
The utility model is characterized in that: the front-located shaft type tubular pump device consists of a water inlet flow channel, a water pump impeller, a water pump rear guide vane body and a water outlet flow channel in sequence; arranging a vertical shaft in the water inlet flow channel, wherein the vertical shaft is rigidly connected with the water inlet flow channel; the vertical shaft penetrates through the transition round table, and the outer wall of the transition round table is smoothly connected with the water pump impeller hub body; a shaft seal is arranged at a shaft extension part connected with the transition circular truncated cone and the water pump impeller, a guide bearing seat and a guide bearing are arranged near the shaft seal, and the guide bearing is positioned in the guide bearing seat; the guide bearing seat and the water pump impeller are respectively positioned at two sides of the shaft seal; a space is reserved between the guide bearing seat and the shaft seal, and the leakage water entering from the shaft seal can be discharged out of the vertical shaft from the drainage pipe through the space reserved between the guide bearing seat and the shaft seal; and a support is arranged between the outer wall of the transition circular truncated cone and the inner wall of the water inlet flow channel and corresponds to the position of the guide bearing seat. The utility model discloses think about ingenious, novel structure, can overcome leading shaft tubular pump device's shortcoming effectively, fundamentally has guaranteed the stability of leading shaft tubular pump device operation.
In order to realize the purpose of the utility model, the novel preposed shaft type tubular pump device adopts the following technical scheme:
(1) the front-located shaft type tubular pump device consists of a water inlet flow channel, a water pump impeller, a water pump rear guide vane body and a water outlet flow channel in sequence; the shape of the cross section of the water inlet runner is gradually changed from a rectangle to a circle, and the shape of the cross section of the water outlet runner is gradually changed from a circle to a rectangle;
(2) a vertical shaft is arranged in the water inlet flow channel and is rigidly connected with a bottom plate of the water inlet flow channel so as to keep the stability of the vertical shaft when the water pump operates; the vertical shaft is communicated with the transition round platform, and the outer wall of the transition round platform is smoothly connected with the outer wall of the hub body of the water pump impeller, so that water flow smoothly and uniformly enters the water pump impeller;
(3) a shaft seal is arranged at a shaft extension part connected with the transition circular truncated cone and the water pump impeller, a guide bearing seat and a guide bearing are arranged near the shaft seal, and the guide bearing is positioned in the guide bearing seat; the guide bearing seat and the water pump impeller are respectively positioned at two sides of the shaft seal; a space is reserved between the guide bearing seat and the shaft seal, a drain pipe is arranged in the vertical shaft, and the leakage water entering from the shaft seal can be discharged out of the vertical shaft from the drain pipe through the space reserved between the guide bearing seat and the shaft seal so as to ensure that the leakage water cannot enter the guide bearing;
(4) and a support is arranged between the outer wall of the transition circular truncated cone and the inner wall of the water inlet flow channel and corresponds to the position of the guide bearing seat, so that the working stability of the guide bearing is kept.
The utility model discloses creatively with leading shaft tubular pump device's water pump guide bearing from the water pump in leading blade body wheel hub moves to the shaft, has following beneficial effect:
first, the utility model discloses can subtract the transmission shaft length of leading shaft tubular pump device by a wide margin, show the shafting stability that improves pump unit.
Second, the utility model discloses lead the bearing to change the wet-type that arranges originally in the stator body behind the water pump into arranging the dry-type that leads in the shaft, fundamentally has changed the operational environment who leads the bearing, ensures to lead the bearing and can not receive the influence of bearing seal percolating water, has greatly improved the reliability of leading the bearing.
Third, the utility model discloses a water pump guide vane body no longer undertakes the task of supporting the guide bearing, consequently can adopt overall structure and no longer must adopt and open the structure because of the needs that the guide bearing overhauld, the blade number of the guide vane body just can adopt the odd number piece number, has avoided opening the problem that the blade number of the guide vane body had to adopt the even number to lead to because of the guide vane body needs.
Fourth, the utility model discloses both remain the excellent advantage of current leading shaft tubular pump device hydraulic performance, show the stability and the reliability that have improved pumping plant again simultaneously, created one kind and had excellent hydraulic performance and high safe and stable reliable's large-scale tubular pump device simultaneously.
Drawings
FIG. 1 is a schematic elevation view of a front-located shaft tubular pump assembly of the present invention;
FIG. 2 is a schematic plan view of a front-located shaft tubular pump apparatus of the present invention;
in the figure, a water inlet flow passage 1, a water pump impeller 2, a water pump rear guide vane body 3, a water outlet flow passage 4, a vertical shaft 5, a hub body 6, a shaft seal 7, a guide bearing seat 8, a guide bearing 9, a support 10 and a transition circular truncated cone 11.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
(1) The front shaft type tubular pump device consists of a water inlet flow passage 1, a water pump impeller 2, a water pump rear guide vane body 3 and a water outlet flow passage 4 in sequence; the shape of the cross section of the water inlet flow channel 1 is gradually changed from a rectangle to a circle, and the shape of the cross section of the water outlet flow channel 4 is gradually changed from a circle to a rectangle;
(2) a vertical shaft 5 is arranged in the water inlet flow passage 1, and the vertical shaft 5 is rigidly connected with the water inlet flow passage 1 so as to keep the stability of the vertical shaft 5 when the water pump operates; the vertical shaft 5 penetrates through the transition round table 11, and the outer wall of the transition round table 11 is smoothly connected with the outer wall of the hub body 6 of the water pump impeller 2;
(3) a shaft seal 7 is arranged at a shaft extension part of the transition circular truncated cone 11 connected with the water pump impeller 2, a guide bearing seat 8 and a guide bearing 9 are arranged near the shaft seal 7, and the guide bearing 9 is positioned in the guide bearing seat 8; the guide bearing seat 8 and the water pump impeller 2 are respectively positioned at two sides of the shaft seal 7; a space is reserved between the guide bearing seat 8 and the shaft seal 7, and the leakage water entering from the shaft seal 7 can be discharged out of the vertical shaft 5 through a drainage pipe;
(4) a bracket 10 is arranged between the outer wall of the transition circular truncated cone 11 and the inner wall of the water inlet channel 1 corresponding to the position of the guide bearing seat 8.
Claims (5)
1. A novel preposed shaft type tubular pump device is characterized in that the preposed shaft type tubular pump device sequentially consists of a water inlet flow passage, a water pump impeller, a water pump rear guide vane body and a water outlet flow passage; the shape of the cross section of the water inlet runner is gradually changed from a rectangle to a circle, and the shape of the cross section of the water outlet runner is gradually changed from a circle to a rectangle; arranging a vertical shaft in the water inlet flow channel, wherein the vertical shaft is rigidly connected with a bottom plate of the water inlet flow channel; the vertical shaft penetrates through the transition round table, and the outer wall of the transition round table is smoothly connected with the water pump impeller hub body; and a shaft seal is arranged at the shaft extension part of the transition round platform connected with the water pump impeller.
2. The novel front-located shaft type tubular pump device as claimed in claim 1, wherein a guide bearing seat and a guide bearing are arranged near the shaft seal, and the guide bearing is located in the guide bearing seat; the guide bearing seat and the water pump impeller are respectively positioned on two sides of the shaft seal.
3. The new front-located shaft through-flow pump assembly of claim 2 wherein a gap is provided between the guide bearing block and the shaft seal.
4. The new front-located shaft type tubular pump device as claimed in claim 3, wherein a drain pipe is provided in the shaft, and the leakage water entering from the shaft seal is discharged out of the shaft through the drain pipe via the space left between the guide bearing seat and the shaft seal.
5. The novel front-located shaft type tubular pump device as claimed in claim 4, wherein a support is arranged between the outer wall of the transition circular truncated cone and the inner wall of the water inlet flow channel, corresponding to the position of the guide bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022217052.8U CN213235458U (en) | 2020-09-30 | 2020-09-30 | Novel front-located shaft type tubular pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022217052.8U CN213235458U (en) | 2020-09-30 | 2020-09-30 | Novel front-located shaft type tubular pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235458U true CN213235458U (en) | 2021-05-18 |
Family
ID=75877833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022217052.8U Expired - Fee Related CN213235458U (en) | 2020-09-30 | 2020-09-30 | Novel front-located shaft type tubular pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324901A (en) * | 2022-09-19 | 2022-11-11 | 扬州大学 | Bidirectional full tubular pump device with novel vertical shaft structure and mounting method thereof |
-
2020
- 2020-09-30 CN CN202022217052.8U patent/CN213235458U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324901A (en) * | 2022-09-19 | 2022-11-11 | 扬州大学 | Bidirectional full tubular pump device with novel vertical shaft structure and mounting method thereof |
| CN115324901B (en) * | 2022-09-19 | 2024-05-17 | 扬州大学 | Novel shaft structure bidirectional full-through-flow pump device and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |