CN217558635U - Double suction centrifugal pump capable of adjusting water flow - Google Patents
Double suction centrifugal pump capable of adjusting water flow Download PDFInfo
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- CN217558635U CN217558635U CN202220308430.XU CN202220308430U CN217558635U CN 217558635 U CN217558635 U CN 217558635U CN 202220308430 U CN202220308430 U CN 202220308430U CN 217558635 U CN217558635 U CN 217558635U
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Abstract
The utility model relates to a double suction centrifugal pump of adjustable rivers, including the pump body, non-drive end pump cover and drive end pump cover, the pump body is connected formation intake antrum and play water cavity respectively with non-drive end pump cover and drive end pump cover, the inside pump shaft that runs through non-drive end pump cover and drive end pump cover respectively that is provided with of the pump body, be provided with the impeller on the pump shaft, the both sides that just are located the impeller on the pump shaft all are provided with adjustable water inlet guide vane device, adjustable water inlet guide vane device is used for adjusting to come from rivers in the intake antrum, the rivers after the pump shaft drive impeller will adjust convey out the water cavity. The utility model discloses can improve the hydraulic efficiency of water pump operation.
Description
Technical Field
The utility model relates to a water pump technical field especially relates to a double entry centrifugal pump of adjustable rivers.
Background
With the development of industry and agriculture, the environmental pollution is more and more serious, so the requirement for carbon emission is more and more strict, the product is forced to be continuously upgraded, and a high-efficiency energy-saving solution is continuously provided. The double-suction centrifugal pump is more and more widely applied in the field of water delivery and supply, the flow change of a water pump in actual water delivery at different time intervals every day is larger, the current common method adopts a frequency conversion technology, the frequency conversion technology makes a great contribution to energy conservation of a water pump system, however, the design of the water pump is optimally designed according to a rated point (namely, the efficiency of the water pump is highest at a rated flow), and when the water pump works deviating from the rated point, namely, under a partial load working condition, the efficiency is lower, and the efficiency is more reduced the farther the deviation from the rated flow is.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a double entry centrifugal pump of adjustable rivers is provided, can improve the hydraulic efficiency of water pump operation.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a double suction centrifugal pump of adjustable rivers, includes the pump body, non-drive end pump cover and drive end pump cover, the pump body is connected with non-drive end pump cover and drive end pump cover respectively and forms intake antrum and play water cavity, the inside pump shaft that runs through non-drive end pump cover and drive end pump cover respectively that is provided with of pump body, be provided with the impeller on the pump shaft, the both sides that just are located the impeller on the pump shaft all are provided with adjustable water inlet guide vane device, adjustable water inlet guide vane device is used for adjusting to come from rivers in the intake antrum, pump shaft drive impeller conveys the rivers after adjusting to a water cavity.
Adjustable stator device of intaking includes drive gear, driving gear and a plurality of slave unit, drive gear and driving gear mesh mutually, the driving gear with a plurality of slave unit connect, drive gear is provided with and is used for driving self pivoted drive control device, drive control device control drive gear rotates and drives the driving gear and rotate, the driving gear rotates and drives a plurality of slave unit deflection and predetermine the angle in order to adjust rivers.
The driven device comprises a driven gear meshed with the driving gear, guide vanes pointing to the circle center of the driving gear are arranged on the driven gear, the driving control device controls the driving gear to rotate to drive the driving gear to rotate, the driving gear rotates to drive the driven gear to rotate, and the driven gear rotates to deflect the guide vanes to a preset angle to adjust water flow. .
A driving end bearing frame is arranged outside the driving end pump cover, a driving bearing chamber is arranged in the driving end bearing frame, and a driving end bearing pressure cover used for sealing the driving bearing chamber is arranged outside the driving end bearing frame;
the non-driving end pump cover is characterized in that a non-driving end bearing frame is arranged outside the non-driving end pump cover, a non-driving end bearing chamber is arranged in the non-driving end bearing frame, and a non-driving end bearing cover used for sealing the non-driving end bearing chamber is arranged outside the non-driving end bearing frame.
The driving end of the pump shaft penetrates through the pump cover at the driving end and extends to the driving bearing chamber, and a bearing is arranged on the pump shaft in the driving bearing chamber;
the non-driving end of the pump shaft penetrates through the pump cover at the non-driving end and extends to the non-driving bearing chamber, and a bearing is arranged on the pump shaft in the non-driving bearing chamber.
And the bearing in the non-driving bearing chamber is fixed through a bearing nut.
The impeller is connected with the pump shaft through a key.
The impeller is fixed on the pump shaft through an impeller nut.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses a be provided with adjustable stator device of intaking in the double entry centrifugal pump, can be according to the deflection angle of water pressure regulation stator, and then the water pump all operates at efficiency optimization operating point under arbitrary operating mode, has improved the hydraulic efficiency of water pump under the load operating mode, especially frequency conversion or variable flow water pump system's operating efficiency, practices thrift water pump system energy consumption.
Drawings
FIG. 1 is a sectional view of a double suction centrifugal pump according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the adjustable water inlet guide vane device in the embodiment of the present invention.
The figure is as follows: 1. the water inlet guide vane adjustable pump comprises a pump body, 2, a non-driving end pump cover, 3, a non-driving end bearing frame, 4, a bearing, 5, a non-driving end bearing gland, 6, a bearing nut, 7, a mechanical sealing device, 8, a pump shaft, 9, a non-driving end flushing hole, 10, an adjustable water inlet guide vane device, 11, an impeller nut, 12, an impeller, 13, a key, 14, a driving end flushing hole, 15, a driving end bearing gland, 16, a driving end bearing frame, 17, a driving end pump cover, 1001, a driving control device, 1002, a driving gear, 1003, a driving gear, 1004, a driven gear, 1005 and guide vanes.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The embodiment of the utility model relates to a double suction centrifugal pump of adjustable rivers please refer to and draw together fig. 1, including the pump body 1, non-drive end pump cover 2 and drive end pump cover 17, the pump body 1 is connected formation intake antrum and play water cavity respectively with non-drive end pump cover 2 and drive end pump cover 17, 1 inside pump shaft 8 that runs through non-drive end pump cover 2 and drive end pump cover 17 respectively that is provided with of the pump body, be provided with impeller 12 on the pump shaft 8, the both sides that just are located impeller 12 on the pump shaft 8 all are provided with adjustable water inlet guide vane device 10, adjustable water inlet guide vane device 10 is used for adjusting and comes from rivers in the intake antrum, 8 drive impeller 12 of pump shaft convey out the water cavity with rivers after adjusting.
Further, a pressure sensor is provided at the outlet of the water pump, and the adjustable water inlet guide vane device 10 adjusts the flow area of the liquid entering the impeller 12 according to the measured outlet water pressure change.
Referring to fig. 2, the adjustable water inlet guide vane device 10 includes a driving gear 1002, a driving gear 1003 and a plurality of driven devices, the driving gear 1002 is engaged with the driving gear 1003, the driving gear 1003 is connected with the driven devices, the driving gear 1002 is provided with a driving control device 1001 for driving the driving gear 1002 to rotate, the driving control device 1001 controls the driving gear 1002 to rotate to drive the driving gear 1003 to rotate, and the driving gear 1003 rotates to drive the driven devices to deflect to a preset angle to adjust water flow.
Further, the driven device comprises a driven gear 1004 engaged with the driving gear 1003, guide vanes 1005 pointing to the center of the driving gear 1003 are uniformly arranged on the driven gear 1004, the driving control device 1001 controls the driving gear 1002 to rotate to drive the driving gear 1003 to rotate, the driving gear 1003 rotates to drive the driven gear 1004 to rotate, and the driven gear 1004 rotates to deflect the guide vanes 1005 to a preset angle to adjust water flow.
The working principle of the adjustable water inlet guide vane device 10 is as follows: firstly, the driving control device 1001 determines the deflection angle of the guide vane 1005 according to the received pressure signal transmitted by the pressure sensor; drive control device 1001 of adjustable water inlet guide vane device 10 can transmit drive gear 1002 to power, and drive gear 1002 can drive driving gear 1003 clockwise or anticlockwise and rotate, and driven gear 1004 drives stator 1005 clockwise or anticlockwise through the driving gear 1003 transmission and rotates, adjusts stator 1005 to the angular position of optimizing, and the water pump operation is in efficiency optimization operating point, has improved the hydraulic efficiency under water pump part load and the overload operating mode.
Further, a driving end bearing frame 16 is arranged outside the driving end pump cover 17, a driving bearing chamber is arranged in the driving end bearing frame 16, and a driving end bearing gland 15 for sealing the driving bearing chamber is arranged outside the driving end bearing frame 16; a through hole for passing through the pump shaft 8 is formed in the middle of the bearing gland 15 of the driving end, so that the pump shaft of the driving end is conveniently connected with a driving motor; the non-driving end pump cover is characterized in that a non-driving end bearing frame 3 is arranged outside the non-driving end pump cover 2, a non-driving end bearing chamber is arranged in the non-driving end bearing frame 3, and a non-driving end bearing gland 5 used for sealing the non-driving end bearing chamber is arranged outside the non-driving end bearing frame 3.
Further, the driving end of the pump shaft 8 penetrates through the driving end pump cover 17 and extends to the driving bearing chamber, and a bearing 4 is arranged on the pump shaft 8 in the driving bearing chamber; the non-driving end of the pump shaft 8 penetrates through the pump cover 2 at the non-driving end and extends to the non-driving bearing chamber, and a bearing 4 is arranged on the pump shaft 8 in the non-driving bearing chamber.
Further, the bearing 4 in the non-driving bearing chamber is fixedly locked by a bearing nut 6.
Further, the impeller 12 is connected with the pump shaft 8 through a key 13, and the impeller 12 is fixed on the pump shaft 8 through an impeller nut 11.
Further, the joints of the non-drive end pump cover 2 and the drive end pump cover 17 with the pump shaft 8 are both provided with mechanical sealing devices 7.
In the embodiment, the non-drive end flushing hole 9 is formed in the non-drive end pump cover 2 and used for guiding high-pressure fluid at the outlet of the impeller 12 to the mechanical sealing device 7 on the non-drive end pump cover 2, after the mechanical sealing device 7 is flushed, the high-pressure fluid enters the water inlet cavity of the non-drive end and then enters the impeller 12 through the adjustable water inlet guide vane device 10 to form circulation, the mechanical sealing device 7 can be flushed through the whole circulation flow, the sealing surface of the mechanical sealing device 7 is guaranteed to be clean, heat generated by friction of the sealing surface of the mechanical sealing device 7 can be taken away, and the operation safety of the mechanical sealing device 7 is guaranteed.
Similarly, in the embodiment, a driving end flushing hole 14 having the same function as the non-driving end flushing hole 9 is arranged inside the driving end pump cover 17 and used for guiding the high-pressure fluid at the outlet of the impeller 12 to the mechanical sealing device 7 on the driving end pump cover 17, after the mechanical sealing device 7 is flushed, the high-pressure fluid enters the water inlet cavity of the driving end and then enters the impeller 12 through the adjustable water inlet guide vane device 10 to form a circulation, and the whole circulation flow not only can flush the mechanical sealing device 7 to ensure that the sealing surface of the mechanical sealing device 7 is clean, but also can take away the heat of the friction of the sealing surface of the mechanical sealing device 7, thereby ensuring the operation safety of the mechanical sealing device 7. The built-in flushing holes of the driving end and the non-driving end effectively overcome the defects of messy arrangement, more joints and poor reliability of the original external pipeline.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. The utility model provides a double suction centrifugal pump of adjustable rivers, its characterized in that, including the pump body (1), non-drive end pump cover (2) and drive end pump cover (17), the pump body (1) is connected with non-drive end pump cover (2) and drive end pump cover (17) respectively and is formed intake antrum and play water cavity, pump body (1) inside is provided with pump shaft (8) that run through non-drive end pump cover (2) and drive end pump cover (17) respectively, be provided with impeller (12) on pump shaft (8), the both sides that just are located impeller (12) on pump shaft (8) all are provided with adjustable water inlet guide vane device (10), adjustable water inlet guide vane device (10) are used for adjusting and come from rivers in the intake antrum, pump shaft (8) drive impeller (12) convey the play water cavity with the rivers after adjusting.
2. The double suction centrifugal pump capable of adjusting water flow according to claim 1, wherein the adjustable water inlet guide vane device (10) comprises a driving gear (1002), a driving gear (1003) and a plurality of driven devices, the driving gear (1002) is meshed with the driving gear (1003), the driving gear (1003) is connected with the driven devices, the driving gear (1002) is provided with a driving control device (1001) for driving the driving gear to rotate, the driving control device (1001) controls the driving gear (1002) to rotate to drive the driving gear (1003) to rotate, and the driving gear (1003) rotates to drive the driven devices to deflect to a preset angle to adjust water flow.
3. The double-suction centrifugal pump capable of adjusting water flow as claimed in claim 2, wherein the driven device comprises a driven gear (1004) engaged with the driving gear (1003), a guide vane (1005) pointing to the center of the driving gear (1003) is arranged on the driven gear (1004), the driving control device (1001) controls the driving gear (1002) to rotate to drive the driving gear (1003) to rotate, the driving gear (1003) rotates to drive the driven gear (1004) to rotate, and the driven gear (1004) rotates to deflect the guide vane (1005) to a preset angle to adjust water flow.
4. The double suction centrifugal pump capable of adjusting water flow according to claim 1, characterized in that a driving end bearing frame (16) is arranged outside the driving end pump cover (17), a driving bearing chamber is arranged inside the driving end bearing frame (16), and a driving end bearing cover (15) for closing the driving bearing chamber is arranged outside the driving end bearing frame (16);
the non-driving end pump cover is characterized in that a non-driving end bearing frame (3) is arranged outside the non-driving end pump cover (2), a non-driving end bearing chamber is arranged in the non-driving end bearing frame (3), and a non-driving end bearing gland (5) used for sealing the non-driving end bearing chamber is arranged outside the non-driving end bearing frame (3).
5. The double-suction centrifugal pump capable of adjusting water flow as claimed in claim 4, characterized in that the driving end of the pump shaft (8) passes through the driving end pump cover (17) and extends to the driving bearing chamber, and a bearing (4) is arranged on the pump shaft (8) in the driving bearing chamber;
the non-driving end of the pump shaft (8) penetrates through the non-driving end pump cover (2) and extends to the non-driving bearing chamber, and a bearing (4) is arranged on the pump shaft (8) located in the non-driving bearing chamber.
6. Double suction centrifugal pump with adjustable water flow according to claim 5, characterized in that the bearing (4) in the non-driven bearing chamber is fixed by a bearing nut (6).
7. Water flow adjustable double suction centrifugal pump according to claim 1, characterized in that the impeller (12) is connected with the pump shaft (8) by a key (13).
8. Double suction centrifugal pump with adjustable water flow according to claim 1, characterized in that the impeller (12) is fixed to the pump shaft (8) by means of an impeller nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220308430.XU CN217558635U (en) | 2022-02-16 | 2022-02-16 | Double suction centrifugal pump capable of adjusting water flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220308430.XU CN217558635U (en) | 2022-02-16 | 2022-02-16 | Double suction centrifugal pump capable of adjusting water flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217558635U true CN217558635U (en) | 2022-10-11 |
Family
ID=83468479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220308430.XU Active CN217558635U (en) | 2022-02-16 | 2022-02-16 | Double suction centrifugal pump capable of adjusting water flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217558635U (en) |
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2022
- 2022-02-16 CN CN202220308430.XU patent/CN217558635U/en active Active
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