CN113883097B - Adjustable front guide vane device of centrifugal pump capable of widening high-efficiency area - Google Patents
Adjustable front guide vane device of centrifugal pump capable of widening high-efficiency area Download PDFInfo
- Publication number
- CN113883097B CN113883097B CN202110696980.3A CN202110696980A CN113883097B CN 113883097 B CN113883097 B CN 113883097B CN 202110696980 A CN202110696980 A CN 202110696980A CN 113883097 B CN113883097 B CN 113883097B
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- China
- Prior art keywords
- guide vane
- centrifugal pump
- gland
- efficiency area
- adjustable
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Links
- 210000004907 gland Anatomy 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/466—Fluid-guiding means, e.g. diffusers adjustable especially adapted for liquid fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a centrifugal pump adjustable front guide vane device capable of widening a high-efficiency area, which is arranged at a water inlet of a centrifugal pump and widens the high-efficiency area of the centrifugal pump. Comprising the following steps: the adjustable guide vanes are arranged on the guide vane gland and can rotate on the guide vane gland. The adjustable front guide vane device provided by the invention can improve the operation efficiency of different working condition points in the operation range by adjusting the guide vane angle according to actual needs, and the application range is increased and the high-efficiency area of the centrifugal pump is obviously increased only aiming at a specific working condition point. Meanwhile, the device can achieve the purpose of adjusting the running condition of the centrifugal pump under the condition of not greatly increasing the flow resistance of the pipeline, and is beneficial to running of the centrifugal pump in a high-efficiency area.
Description
Technical Field
The invention relates to an adjustable front guide vane device of a centrifugal pump, in particular to an adjustable front guide vane device of a centrifugal pump, which can improve the operation efficiency of different working condition points in an operation range by adjusting the angle of the guide vane according to actual needs and can widen an efficient area.
Background
Centrifugal pumps are increasingly used in a wide range of applications in various fields such as construction, municipal and industrial. With the continuous improvement of the national requirements for green and energy conservation, the requirements for the running efficiency of the centrifugal pump are also higher and higher.
However, in practical application, along with the enlargement and the complexity of a water pump pipe network system, a certain deviation exists in the estimation of the overall operation characteristic of the system in the design process, and in addition, the centrifugal pump is often operated at a deviation working condition point from the design point in the use process due to the change in the construction process, so that the operation efficiency of the centrifugal pump is greatly lower than the design efficiency, and the energy waste is caused.
Therefore, the operation efficiency of the centrifugal pump is improved, on one hand, the operation efficiency of the centrifugal pump under various working conditions is required to be improved, and on the other hand, the working condition adjustment mode of the centrifugal pump is required to be optimized and improved, so that the centrifugal pump is operated under the design working conditions as much as possible.
The working condition adjusting mode of the centrifugal pump is basically realized by adjusting the opening of a valve behind the pump at present. However, the disadvantage of using the valve to adjust is that the accuracy of the valve adjustment is not high, the purpose of accurate working condition adjustment is difficult to achieve, and the flow resistance of the valve is large after the opening degree of the valve is reduced, which is not beneficial to energy saving and consumption reduction.
Disclosure of Invention
Aiming at the problems, the main purpose of the invention is to provide the adjustable front guide vane device of the centrifugal pump, which can improve the operation efficiency of different working condition points in the operation range by adjusting the angle of the guide vane according to actual needs and can widen the high-efficiency area.
The invention solves the technical problems by the following technical proposal: the utility model provides a but centrifugal pump adjustable leading guide vane device of widening high-efficient district, but centrifugal pump adjustable leading guide vane device of widening high-efficient district installs in centrifugal pump's water inlet department, widens the high-efficient district of centrifugal pump.
In a specific embodiment of the present invention, the adjustable front guide vane device of a centrifugal pump capable of widening the high-efficiency area includes: the adjustable guide vanes are arranged on the gland, and can rotate on the gland.
In a specific embodiment of the present invention, the adjustable front guide vane device of a centrifugal pump capable of widening the high-efficiency area further includes: a guide vane rotating angle dial plate, a fastening bolt, a guide vane handle sealing ring and a guide vane handle disc,
The gland is provided with a hole, the guide vane is penetrated out from the bottom of the gland upwards, the guide vane handle of the guide vane is provided with threads, the guide vane is fixed with the gland through a nut, a sealing ring for preventing leakage is arranged between the guide vane handle and the gland,
The connection position of the guide vane and the guide vane handle is a disc, and the rotation angle of the guide vane is displayed on the dial plate;
the gland is connected with the inlet section through bolts, and the inlet section is connected with the pump body through bolts.
In a specific embodiment of the present invention, the guide vane is a straight guide vane.
The invention has the positive progress effects that: the adjustable front guide vane device of the centrifugal pump, which is provided by the invention and can widen the high-efficiency area, has the following advantages: the adjustable front guide vane device provided by the invention can improve the operation efficiency of different working condition points in the operation range by adjusting the guide vane angle according to actual needs, and the application range is increased and the high-efficiency area of the centrifugal pump is obviously increased only aiming at a specific working condition point. Meanwhile, the device can achieve the purpose of adjusting the running condition of the centrifugal pump under the condition of not greatly increasing the flow resistance of the pipeline, and is beneficial to running of the centrifugal pump in a high-efficiency area.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a partial enlarged view of fig. 1.
The following are names corresponding to the reference numerals in the present invention:
Pump inducer 2, guide vane gland 3, adjustable guide vane 4, fastening nut 5, dial plate 6, fastening bolt 7, sealing ring 8, disk 9.
Detailed Description
The following description of the preferred embodiments of the present invention is given with reference to the accompanying drawings, so as to explain the technical scheme of the present invention in detail.
Fig. 1 is a schematic overall structure of the present invention, and fig. 2 is a partial enlarged view of fig. 1.
As shown in fig. 1-2: the adjustable front guide vane device of the centrifugal pump, which is provided by the invention, can widen the high-efficiency area, is arranged at the water inlet outlet of the centrifugal pump, and widens the high-efficiency area of the centrifugal pump. The adjustable front guide vane device of the centrifugal pump capable of widening the high-efficiency area comprises: a plurality of adjustable guide vanes 4, wherein the adjustable guide vanes 4 are arranged on the guide vane gland 3, and the adjustable guide vanes 4 can rotate on the guide vane gland 3.
The centrifugal pump adjustable front guide vane device capable of widening the high-efficiency area further comprises: the guide vane rotating angle dial plate 6, the fastening bolt 7, the guide vane handle sealing ring 8 and the guide vane handle disc 9.
The gland 3 is provided with a hole, the guide vane 4 is penetrated out upwards from the bottom of the gland 3, the guide vane handle of the guide vane 4 is provided with threads, the guide vane 4 is fixed with the gland 3 through the nut 5, and a sealing ring 8 for preventing leakage is arranged between the guide vane handle and the gland 3.
The connection position of the guide vane 4 and the guide vane handle is a disc 9, and the rotation angle of the guide vane 4 is displayed on the dial 6; the gland 3 is connected with the inlet section 2 through a bolt 7, and the inlet section 2 is connected with the pump body 1 through a bolt 10. Vertical lines are carved on the handle of the guide vane, angle scale marks are carved on the dial plate 6, when the installation direction of the straight guide vane 4 is parallel to the axial center line of the inlet, the vertical lines of the handle of the guide vane are aligned with the 0-degree scale marks on the dial plate 6, and when the guide vane rotates, the corresponding angle scale marks on the handle scale marks and the dial plate 6 are the guide vane rotating angle.
In a specific implementation, the guide vane 4 in the present invention is a straight guide vane.
The gland 3 is connected with the inlet section 2 through a bolt 7, and the inlet section 2 is connected with the pump body 1 through a bolt 10.
In the operation process, the installation direction of the guide vane 4 is set to be parallel to the axial direction, and the rotation direction of the guide vane is adjusted according to the actual operation condition of the pump, so that on one hand, the operation efficiency of the centrifugal pump under the condition can be improved, and meanwhile, the operation condition can be moved to a design condition point.
The inlet adjustable guide vane adopts straight blades, has high universality, is 4 pieces in total and is uniformly distributed in the circumferential range of the inlet section.
After the adjustable guide vane device is additionally arranged, the influence on the inlet structure of the pump body is small.
The adjustable front guide vane device provided by the invention can improve the operation efficiency of different working condition points in the operation range by adjusting the guide vane angle according to actual needs, and the application range is increased and the high-efficiency area of the centrifugal pump is obviously increased only aiming at a specific working condition point. Meanwhile, the device can achieve the purpose of adjusting the running condition of the centrifugal pump under the condition of not greatly increasing the flow resistance of the pipeline, and is beneficial to running of the centrifugal pump in a high-efficiency area.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a but centrifugal pump adjustable leading guide vane device of high-efficient district is widened which characterized in that: the adjustable front guide vane device of the centrifugal pump capable of widening the high-efficiency area is arranged at the water inlet of the centrifugal pump, so that the high-efficiency area of the centrifugal pump is widened;
The adjustable front guide vane device of the centrifugal pump capable of widening the high-efficiency area comprises: the adjustable guide vanes are arranged on the gland and can rotate on the gland;
The adjustable front guide vane device of the centrifugal pump capable of widening the high-efficiency area further comprises: a guide vane rotating angle dial plate, a fastening bolt, a guide vane handle sealing ring and a guide vane handle disc,
The gland is provided with a hole, the guide vane is penetrated out from the bottom of the gland upwards, the guide vane handle of the guide vane is provided with threads, the guide vane is fixed with the gland through a nut, a sealing ring for preventing leakage is arranged between the guide vane handle and the gland,
The connection position of the guide vane and the guide vane handle is a disc, and the rotation angle of the guide vane is displayed on the dial plate;
the gland is connected with the inlet section through a bolt, and the inlet section is connected with the pump body through a bolt;
The guide vane is a straight guide vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696980.3A CN113883097B (en) | 2021-06-23 | 2021-06-23 | Adjustable front guide vane device of centrifugal pump capable of widening high-efficiency area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696980.3A CN113883097B (en) | 2021-06-23 | 2021-06-23 | Adjustable front guide vane device of centrifugal pump capable of widening high-efficiency area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113883097A CN113883097A (en) | 2022-01-04 |
| CN113883097B true CN113883097B (en) | 2024-05-17 |
Family
ID=79010302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110696980.3A Active CN113883097B (en) | 2021-06-23 | 2021-06-23 | Adjustable front guide vane device of centrifugal pump capable of widening high-efficiency area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113883097B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639085A (en) * | 2008-08-01 | 2010-02-03 | 清华大学 | Energy-saving device and energy-saving method by regulating front guide vanes of centrifugal pump |
| CN201810589U (en) * | 2010-10-14 | 2011-04-27 | 张仁田 | Tubular pump with movable guide vane at impeller entrance |
| CN201818553U (en) * | 2010-10-14 | 2011-05-04 | 朱红耕 | Rear guide vane-adjustable tubular pump |
| CN103498815A (en) * | 2013-10-01 | 2014-01-08 | 湖北双剑鼓风机股份有限公司 | Efficient flow adjusting device of compressor |
| CN105822579A (en) * | 2016-03-22 | 2016-08-03 | 中国石油大学(北京) | Automatic adjustment method for centrifugal pump front guide vane and device for automatic adjustment method |
| CN217539104U (en) * | 2021-06-23 | 2022-10-04 | 上海凯泉泵业（集团）有限公司 | Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area |
| CN219911268U (en) * | 2023-04-21 | 2023-10-27 | 上海凯泉泵业（集团）有限公司 | Energy-saving device for adjusting pre-rotation flow at inlet of centrifugal pump |
-
2021
- 2021-06-23 CN CN202110696980.3A patent/CN113883097B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639085A (en) * | 2008-08-01 | 2010-02-03 | 清华大学 | Energy-saving device and energy-saving method by regulating front guide vanes of centrifugal pump |
| CN201810589U (en) * | 2010-10-14 | 2011-04-27 | 张仁田 | Tubular pump with movable guide vane at impeller entrance |
| CN201818553U (en) * | 2010-10-14 | 2011-05-04 | 朱红耕 | Rear guide vane-adjustable tubular pump |
| CN103498815A (en) * | 2013-10-01 | 2014-01-08 | 湖北双剑鼓风机股份有限公司 | Efficient flow adjusting device of compressor |
| CN105822579A (en) * | 2016-03-22 | 2016-08-03 | 中国石油大学(北京) | Automatic adjustment method for centrifugal pump front guide vane and device for automatic adjustment method |
| CN217539104U (en) * | 2021-06-23 | 2022-10-04 | 上海凯泉泵业（集团）有限公司 | Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area |
| CN219911268U (en) * | 2023-04-21 | 2023-10-27 | 上海凯泉泵业（集团）有限公司 | Energy-saving device for adjusting pre-rotation flow at inlet of centrifugal pump |
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| Publication number | Publication date |
|---|---|
| CN113883097A (en) | 2022-01-04 |
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