CN103321968B - A kind of high speed pump with preposition inducer - Google Patents
A kind of high speed pump with preposition inducer Download PDFInfo
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- CN103321968B CN103321968B CN201310291785.8A CN201310291785A CN103321968B CN 103321968 B CN103321968 B CN 103321968B CN 201310291785 A CN201310291785 A CN 201310291785A CN 103321968 B CN103321968 B CN 103321968B
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- inducer
- impeller
- pump
- high speed
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Abstract
With a high speed pump for preposition inducer, there are inducer (1), impeller (2), attachment bolt (3) and seal ring (4) in the described pump housing (5) inside.The ring-shaped cavity that inducer (1) is embedded in impeller eye is inner, and inducer (1) and pump shaft (10) bind mode adopt axial end attachment bolt (3) to connect, and adopts notch circumference location.There is radial clearance in inducer (1) blade rim and impeller (2) entrance endless inner wall.Inducer (1), impeller (2), attachment bolt (3), seal ring (4), cartridge seal (7), end cover (9) composition can Drawing-Core rotor structure.
Description
Technical field
The present invention relates to a kind of high speed pump.
Background technique
At present, the high speed pump of band inducer is widely used in low-flow high-lift parameter area (low-specific-speed), and owing to having function admirable, reliability is high and service life is long, is used widely in the field such as petrochemical industry, Aero-Space.In actual motion, there is blade tip clearance in inducer blade rim and pump housing inwall, due to the rotation effect that the inducer of rotation and the relative motion of pump housing inwall produce, very easily produce local leakage vortex structure at blade tip clearance place, make to produce flowing instability phenomenon in inducer and centrifugal pump impeller runner, cause periodic pressure pulsation, bring out high speed pump and produce unstable vibration and noise.
Summary of the invention
The object of this invention is to provide a kind of high speed pump with preposition inducer.
The present invention is a kind of high speed pump with preposition inducer, has a pump housing 5, is provided with inducer 1, impeller 2, coupling bolt 3 and seal ring 4 in the described pump housing 5 inside; Inducer 1 be embedded in the ring-shaped cavity of impeller eye inner and can with impeller 2 synchronous rotary, inducer 1 and pump shaft 10 bind mode adopt axial end coupling bolt 3 to connect, and adopt notch circumference to locate; There is radial clearance in inducer 1 blade rim and impeller 2 entrance endless inner wall; Inducer 1, impeller 2, coupling bolt 3, seal ring 4, cartridge seal 7 composition can Drawing-Core rotor structure.
Usefulness of the present invention is ring-shaped cavity inside inducer being embedded in centrifugal pump impeller entrance, inducer adopts draw-in groove circumference location, the circumference location that draw-in groove realizes inducer opened by employing pump shaft, by tapped hole and the screw of pump shaft end face, inducer passes through sieve and the impeller synchronous rotary of pump shaft end face; Shown by CFD numerical simulation and verification experimental verification result, adopt in the process of running up, inducer blade rim not easily produces leakage vortex structure, effectively can suppress pressure pulsation and the noise of high speed pump.And adopt at end face rotor structure of can loosing core, realize online disassembling function fast.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention is a kind of high speed pump with preposition inducer, has a pump housing 5, is provided with inducer 1, impeller 2, coupling bolt 3 and seal ring 4 in the described pump housing 5 inside; Inducer 1 be embedded in the ring-shaped cavity of impeller eye inner and can with impeller 2 synchronous rotary, inducer 1 and pump shaft 10 bind mode adopt axial end coupling bolt 3 to connect, and adopt notch circumference to locate; There is radial clearance in inducer 1 blade rim and impeller 2 entrance endless inner wall; Inducer 1, impeller 2, coupling bolt 3, seal ring 4, cartridge seal 7 composition can Drawing-Core rotor structure.
As shown in Figure 1, it is inner that inducer 1 is embedded in impeller 2 entrance ring-shaped cavity, and inducer 1 and pump shaft 10 adopt the coupling bolt 3 of pump shaft 10 end face to connect, and inducer 1 circumference location adopts notch.Inducer 1 be embedded in impeller 2 inlet annular inside cavity and can with impeller 2 synchronous rotary.
As shown in Figure 1, the gap between inducer 1 and impeller 2 annular housing wall is between 0.3-0.5mm, and inducer 1 is by the connection of pump shaft 10 end-face helical hole, and circumference adopts draw-in groove to fix, and impeller 2 adopts flat key to be connected with pump shaft 10.Inducer and impeller synchronous rotary, namely between inducer 1 wheel rim and impeller 2 annular housing inwall without relative movement, leakage vortex structure is easily brought out with conventional inducer blade tip clearance, produce flowing instability phenomenon to compare, it is inner that inducer 1 is embedded in impeller eye ring-shaped cavity, obviously can improve cavitation performance and the efficiency characteristic of inducer, optimize inducer 1 and the matching properties of impeller 2, improve working stability and the reliability of high speed pump rotor.
Working procedure of the present invention is as follows
:
As shown in Figure 1, the rotor portion of high speed pump is made up of inducer 1, impeller 2, coupling bolt 3, seal ring 4, cartridge seal 7, and the static part of high speed pump is made up of parts such as the pump housing 5, pump cover 6, supporting frame 8, end covers 9.Wherein inducer 1 is embedded in impeller 2 entrance ring-shaped cavity, synchronous rotary both during work, avoid the flowing instability sex chromosome mosaicism that conventional inducer and pump housing inwall generation relative motion produce, the vibration & noise of effective reduction unit, improves cavitation performance and the impeller eye flow field characteristic of inducer.
Inducer 1, impeller 2, coupling bolt 3, seal ring 4, cartridge seal 7 composition can Drawing-Core rotor structure, can realize online disassembling function fast.When wherein dismantling, first the pump housing 5 is pulled down, then by the pump housing 5 and supporting frame 8, coupling bolt between pump cover 6 and end cover 9 is pulled down, rotor can be realized can to loose core disassembling function, feature is that dismounting is simple, fast, reliably, this structure is applicable to the Liquid transfer field of Aero-Space, boats and ships, process flow industry process.
Claims (1)
1. be with a high speed pump for preposition inducer, have a pump housing (5), it is characterized in that, in the described pump housing (5) inside, inducer (1), impeller (2), coupling bolt (3) and seal ring (4) are installed; Inducer (1) be embedded in the ring-shaped cavity of impeller eye inner and can with impeller (2) synchronous rotary, inducer (1) and pump shaft (10) bind mode adopt axial end coupling bolt (3) connect, and adopt that notch is circumferential locates; There is radial clearance in inducer (1) blade rim and impeller (2) entrance endless inner wall; Inducer (1), impeller (2), coupling bolt (3), seal ring (4), cartridge seal (7) composition can Drawing-Core rotor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291785.8A CN103321968B (en) | 2013-07-12 | 2013-07-12 | A kind of high speed pump with preposition inducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291785.8A CN103321968B (en) | 2013-07-12 | 2013-07-12 | A kind of high speed pump with preposition inducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103321968A CN103321968A (en) | 2013-09-25 |
| CN103321968B true CN103321968B (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310291785.8A Active CN103321968B (en) | 2013-07-12 | 2013-07-12 | A kind of high speed pump with preposition inducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN103321968B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564707B (en) * | 2015-01-30 | 2017-01-04 | 朱海川 | The efficient non-maintaining two-way removable general-purpose centrifugal pump of modularized design |
| CN109538537B (en) * | 2018-10-30 | 2020-07-07 | 浙江水利水电学院 | High-speed inducer for inhibiting cavitation oscillation and manufacturing method thereof |
| CN110307164A (en) * | 2019-07-25 | 2019-10-08 | 中国船舶重工集团公司第七0四研究所 | Condensate pump flow passage components structure with inducer |
| CN114396383A (en) * | 2022-01-10 | 2022-04-26 | 成都凯天电子股份有限公司 | Oil-gas mixed transportation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859041Y (en) * | 2005-12-28 | 2007-01-17 | 郑州电力机械厂 | Water supplying pump for pressure boiler |
| CN201106568Y (en) * | 2007-07-31 | 2008-08-27 | 陕西航天动力高科技股份有限公司 | High rotary speed centrifugal type self-sucking pump |
| CN101545491A (en) * | 2009-05-04 | 2009-09-30 | 上海奥利泵业制造有限公司 | Boiler water-feeding pump |
| CN201739229U (en) * | 2010-07-16 | 2011-02-09 | 湖南湘电长沙水泵有限公司 | Pipeline pump structure for ship |
| CN102287398A (en) * | 2011-07-25 | 2011-12-21 | 中国航天科技集团公司第六研究院第十一研究所 | Small-sized high-speed centrifugal pump suitable for flow regulation in wide range |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3576068B2 (en) * | 2000-04-21 | 2004-10-13 | 株式会社ミゾタ | High-speed gate pump |
-
2013
- 2013-07-12 CN CN201310291785.8A patent/CN103321968B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859041Y (en) * | 2005-12-28 | 2007-01-17 | 郑州电力机械厂 | Water supplying pump for pressure boiler |
| CN201106568Y (en) * | 2007-07-31 | 2008-08-27 | 陕西航天动力高科技股份有限公司 | High rotary speed centrifugal type self-sucking pump |
| CN101545491A (en) * | 2009-05-04 | 2009-09-30 | 上海奥利泵业制造有限公司 | Boiler water-feeding pump |
| CN201739229U (en) * | 2010-07-16 | 2011-02-09 | 湖南湘电长沙水泵有限公司 | Pipeline pump structure for ship |
| CN102287398A (en) * | 2011-07-25 | 2011-12-21 | 中国航天科技集团公司第六研究院第十一研究所 | Small-sized high-speed centrifugal pump suitable for flow regulation in wide range |
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| Publication number | Publication date |
|---|---|
| CN103321968A (en) | 2013-09-25 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210205 Address after: 116199 No.5, Yinquan street, Zhanqian street, Jinzhou District, Dalian City, Liaoning Province Patentee after: DALIAN HAILIDA TECHNOLOGY Co.,Ltd. Address before: 730050 No. 287 LAN Gong Ping, Gansu City, Lanzhou Province Patentee before: LANZHOU University OF TECHNOLOGY |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high-speed pump with a front inducer Effective date of registration: 20230627 Granted publication date: 20160217 Pledgee: China Merchants Bank Co.,Ltd. Dalian Branch Pledgor: DALIAN HAILIDA TECHNOLOGY CO.,LTD. Registration number: Y2023210000163 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |