CN217539104U - Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area - Google Patents
Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area Download PDFInfo
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- CN217539104U CN217539104U CN202121409513.XU CN202121409513U CN217539104U CN 217539104 U CN217539104 U CN 217539104U CN 202121409513 U CN202121409513 U CN 202121409513U CN 217539104 U CN217539104 U CN 217539104U
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- guide vane
- centrifugal pump
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- gland
- high efficiency
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Abstract
The utility model relates to a can widen leading stator device that centrifugal pump in high efficiency district is adjustable installs the water inlet department at the centrifugal pump, widens the high efficiency district of centrifugal pump. The method comprises the following steps: the adjustable guide vanes are arranged on the pressure cover and can rotate on the guide vane pressure cover. The utility model provides an adjustable leading stator device can improve the operating efficiency of each different operating mode point in the operating range through adjusting stator angle according to actual need, rather than only to certain specific operating mode point, application scope increases, and the obvious increase in centrifugal pump high efficiency district. Meanwhile, the device can achieve the purpose of adjusting the operation condition of the centrifugal pump under the condition of not greatly increasing the flow resistance of the pipeline, and is beneficial to the operation of the centrifugal pump in a high-efficiency area.
Description
Technical Field
The utility model relates to an adjustable leading stator device of centrifugal pump, concretely relates to can improve the operating efficiency of each different operating mode point in the operating range through adjustment stator angle according to actual need and can widen the adjustable leading stator device of centrifugal pump in high-efficient district.
Background
The centrifugal pump has wider and wider application range in various fields such as buildings, municipal administration, industry and the like. With the continuous improvement of the national requirements on green and energy conservation, the requirement on the operating efficiency of the centrifugal pump is higher and higher.
However, in practical application, with the upsizing and complication of the 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 the variation in the construction process makes the centrifugal pump frequently operate at a deviation working point deviating from the design point in the use process, so that the operation efficiency of the centrifugal pump is greatly lower than the design efficiency, and energy waste is caused.
Therefore, the operating efficiency of the centrifugal pump is improved, on one hand, the operating efficiency of the centrifugal pump per se under each working condition needs to be improved, and on the other hand, the working condition adjusting mode of the centrifugal pump needs to be optimized and improved, so that the centrifugal pump can operate under the designed working condition as much as possible.
For the working condition adjusting mode of the centrifugal pump, the working condition adjusting mode is basically realized by adjusting the opening degree of a valve behind the pump at present. However, the disadvantage of using the valve to adjust is that the precision of the valve adjustment is not high, the purpose of accurate working condition adjustment is difficult to realize, and the flow resistance of the valve is larger after the opening degree of the valve is reduced, which is not beneficial to energy saving and consumption reduction.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims to provide a can improve the operating efficiency of each different operating mode point in the operating range through adjustment stator angle according to actual need and can widen the adjustable leading stator device of centrifugal pump in high efficiency district.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: the utility model provides a can widen leading stator device that centrifugal pump is adjustable of high-efficient district, can widen the leading stator device that centrifugal pump is adjustable of high-efficient district and install in the water inlet department of centrifugal pump, widen the high-efficient district of centrifugal pump.
In the specific embodiment of the utility model, the adjustable leading stator device of centrifugal pump that can widen high efficiency zone include: the adjustable guide vanes are arranged on the gland and can rotate on the gland.
In the specific embodiment of the present invention, the adjustable leading vane device of centrifugal pump that can widen high efficiency zone still includes: a guide vane rotation angle dial, 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 penetrates out of the bottom of the gland, a guide vane handle of the guide vane is processed with a thread, 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 guide vane and the guide vane handle are connected by a circular disc, and the rotation angle of the guide vane is displayed on a 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.
In a specific embodiment of the present invention, the guide vane is a straight guide vane.
The utility model discloses an actively advance the effect and lie in: the utility model provides a can widen leading stator device adjustable of centrifugal pump in high-efficient district has following advantage: the utility model provides an adjustable leading stator device can improve the operating efficiency of each different operating mode point in the operating range through adjusting stator angle according to actual need, rather than only to certain specific operating mode point, application scope increases, and the obvious increase in centrifugal pump high efficiency district. Meanwhile, the device can achieve the purpose of adjusting the operation condition of the centrifugal pump under the condition of not greatly increasing the flow resistance of the pipeline, and is beneficial to the operation of the centrifugal pump in a high-efficiency area.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
The utility model discloses the name that well reference numeral corresponds:
the device comprises a pump inlet section 2, a guide vane gland 3, an adjustable guide vane 4, a fastening nut 5, a dial 6, a fastening bolt 7, a sealing ring 8 and a disc 9.
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
Fig. 1 is a schematic view of the overall structure of the present invention, and fig. 2 is a partial enlarged view of fig. 1, as shown in fig. 1-2: the utility model provides a pair of can widen leading stator device of centrifugal pump adjustable of high efficiency district installs the water inlet play at the centrifugal pump, widens the high efficiency district of centrifugal pump. This can widen leading guide vane device that centrifugal pump of high-efficient district is adjustable includes: a plurality of adjustable stator 4, a plurality of adjustable stator 4 install on stator gland 3, and a plurality of adjustable stator 4 can rotate on stator gland 3.
Can widen leading stator device that centrifugal pump of high-efficient district is adjustable still includes: a guide vane rotation angle dial 6, a fastening bolt 7, a guide vane handle sealing ring 8 and a guide vane handle disc 9.
The guide vane is characterized in that the gland 3 is provided with an opening, the guide vane 4 is upwards penetrated out from the bottom of the gland 3, a guide vane handle of the guide vane 4 is processed into threads, the guide vane 4 is fixed with the gland 3 through a nut 5, and a sealing ring 8 for preventing leakage is arranged between the guide vane handle and the gland 3.
The connecting 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 a 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. The guide vane handle is carved with vertical lines, the dial 6 is carved with angle scale lines, when the installation direction of the straight guide vane 4 is parallel to the axial center line of the inlet, the vertical line of the guide vane handle is aligned with 0 degree scale line on the dial 6, and when the guide vane rotates, the handle scale line is corresponding to the angle scale line on the dial 6, namely the guide vane rotating angle.
In specific implementation, the utility model provides a stator 4 is straight stator.
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, set up earlier 4 installation directions on the stator into with axial parallel, according to pump actual operation operating mode, the adjustment stator direction of rotation can improve the operating efficiency of centrifugal pump under this operating mode on the one hand, also can make the operating condition move to the design operating mode point simultaneously.
The inlet adjustable guide vanes are straight vanes, have high universality, are 4 vanes in total, and are uniformly distributed in the circumferential range of the inlet section.
The utility model discloses install adjustable stator device additional after, less to pump body import structure influence.
The utility model provides an adjustable leading stator device can be according to actual need through the adjusting guide vane angle, improves the operating efficiency of each different operating mode point in the operating range, rather than only to certain specific operating mode point, application scope increases, and the obvious increase in centrifugal pump high efficiency district. Meanwhile, the device can achieve the purpose of adjusting the operation condition of the centrifugal pump under the condition of not greatly increasing the flow resistance of the pipeline, and is beneficial to the operation of the centrifugal pump in a high-efficiency area.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a can widen leading stator device that centrifugal pump of high-efficient district is adjustable which characterized in that: the adjustable leading guide vane device of centrifugal pump that can widen the high efficiency district is installed in the water inlet department of centrifugal pump, widens the high efficiency district of centrifugal pump.
2. The adjustable leading guide vane device of centrifugal pump capable of widening high efficiency zone according to claim 1, is characterized in that: the adjustable leading stator device of centrifugal pump that can widen high-efficient district include: the adjustable guide vanes are arranged on the gland and can rotate on the gland.
3. The adjustable leading guide vane device of centrifugal pump capable of widening high efficiency zone according to claim 1, is characterized in that: the adjustable leading stator device of centrifugal pump that can widen high-efficient district still include: a guide vane rotation angle dial, a fastening bolt, a guide vane handle part sealing ring and a guide vane handle part disk,
the gland is provided with a hole, the guide vane penetrates out of the bottom of the gland, a guide vane handle of the guide vane is processed with a thread, 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 connecting position of the guide vane and the guide vane handle is a circular disc, and the rotation angle of the guide vane is displayed on a 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.
4. The adjustable leading guide vane device of centrifugal pump capable of widening high efficiency zone according to claim 1, is characterized in that: the guide vanes are straight guide vanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121409513.XU CN217539104U (en) | 2021-06-23 | 2021-06-23 | Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121409513.XU CN217539104U (en) | 2021-06-23 | 2021-06-23 | Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area |
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| Publication Number | Publication Date |
|---|---|
| CN217539104U true CN217539104U (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121409513.XU Active CN217539104U (en) | 2021-06-23 | 2021-06-23 | Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883097A (en) * | 2021-06-23 | 2022-01-04 | 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 |
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2021
- 2021-06-23 CN CN202121409513.XU patent/CN217539104U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883097A (en) * | 2021-06-23 | 2022-01-04 | 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 |
| CN113883097B (en) * | 2021-06-23 | 2024-05-17 | 上海凯泉泵业（集团）有限公司 | Adjustable front guide vane device of centrifugal pump capable of widening high-efficiency area |
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