CN101709720B - Novel high-efficient energy-saving pump - Google Patents

Novel high-efficient energy-saving pump Download PDF

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Publication number
CN101709720B
CN101709720B CN2009101541102A CN200910154110A CN101709720B CN 101709720 B CN101709720 B CN 101709720B CN 2009101541102 A CN2009101541102 A CN 2009101541102A CN 200910154110 A CN200910154110 A CN 200910154110A CN 101709720 B CN101709720 B CN 101709720B
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CN
China
Prior art keywords
impeller
pump
seal ring
water sucking
suction chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009101541102A
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Chinese (zh)
Other versions
CN101709720A (en
Inventor
牟介刚
李思
郑水华
金建波
苏苗印
赵永攀
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Publication date
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Priority to CN2009101541102A priority Critical patent/CN101709720B/en
Publication of CN101709720A publication Critical patent/CN101709720A/en
Application granted granted Critical
Publication of CN101709720B publication Critical patent/CN101709720B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a novel high-efficient energy-saving pump, comprising a water sucking chamber, an impeller, a pump body, a pump body seal ring and an impeller seal ring, wherein the water sucking chamber is composed of a straight cone-shaped water sucking chamber and a straight tube section of the outlet end of the straight cone-shaped water sucking chamber; the straight tube section is internally provided with an inclined clapboard. The novel high-efficient energy-saving pump of the invention has the beneficial effects that the circumferential circulation exists in the liquid flow at the outlet of the water sucking chamber, the impact loss of the impeller inlet is reduced, and the pump efficiency is improved; the leakage rate of the gap between a seal ring and a lengthening cut-water is reduced, and the leakage lose is lowered; and the seal ring has good sealing performance and long service life, and is especially suitable for application occasions where conveying medium contains solid particles.

Description

Novel high-efficient energy-saving pump
Technical field
The present invention relates to a kind of high efficiency energy saving pump, be applicable to various centrifugal pumps.
Background technique
The pump series products is one of important universal machine product that is widely used in each field of national economy, and annual power consumption reduces the energy loss of centrifugal pump inside up to 18%~22% of national generating capacity, and exploitation high efficiency energy saving pump product is imperative.Axially suction line is straight-tapered or straight tube shape with the pump suction chamber, and liquid stream enters impeller by suction chamber, and velocity attitude is undergone mutation, and causes bigger impact loss at impeller eye.The mechanical energy that is transferred medium absorption prime mover changes pressure energy and the kinetic energy of self into, the self-priming hydroecium enters impeller to the pump housing and exports, hydrodynamic pressure raises gradually, for stoping the pump internal flow to flow to low pressure area by the zone of high pressure, reduce the gap between the inner sound component of pump in the design process, to reduce the clearance leakage loss as far as possible.When fed sheet of a media contained particle, because of the too small serious wear of seal clearance, the life-span shortened greatly.Because there is big gap in the cut water district in the vibration noise, the pump housing, liquid stream is flowed to low pressure area by the pumping chamber zone of high pressure, and leakage loss is bigger.
The conventional centrifugal pump structurally has the following disadvantages: 1. the straight-tapered suction chamber can not provide good impeller eye Flow Field Distribution, and the impeller eye impact loss is bigger; 2. sealing ring gap is influenced by fed sheet of a media, and seal ring leakage loss is bigger; 3. the gap leakage flow rate in cut water zone is bigger.
Summary of the invention
The deficiency that prior art intermediate gap leakage loss is big, efficient is low in order to overcome, the seal ring life-span is short the invention provides a kind of novel high-efficient energy-saving pump that loss is little, efficient is high, the seal ring life-span is long of revealing.
Technological scheme of the present invention:
Novel high-efficient energy-saving pump comprises suction chamber, impeller, the pump housing, casing ring, impeller ring, it is characterized in that: described suction chamber is made of straight length two-part of straight-tapered suction chamber and outlet end thereof, establishes tilt clapboard in the described straight length.
Further, the true dip direction of described dividing plate is consistent with the impeller sense of rotation.
Further, described impeller ring outer side surface circumferentially is evenly distributed with guiding gutter.
Further, the described pump housing is with the lengthening cut water, and the gap between described lengthening cut water inner side surface and the impeller outer disc produces bigger resistance, forms the throttling arc surface; The outer molded lines of described lengthening cut water is the grade circular arc concentric with basic circle.
The structure of suction chamber of the present invention can produce the circumferential component consistent with the impeller sense of rotation, makes fluid enter impeller channel by suction chamber, and velocity variations is more mild, and hydraulic loss is little, and the efficient of pump improves.
The equally distributed guiding gutter of described impeller ring outer side surface is suitable for carrying the medium that contains solid particle, good seal performance, long service life.General seal clearance is a ring, and the sealing ring gap leakage rate reduces and reduces with seal clearance, sees Fig. 5.Described impeller ring, because the existence of guiding gutter, the major diameter particle enters guiding gutter, and liquid in time washes away it into suction chamber, avoids causing seal wears or obstruction, and to the degree of wear reduction of sealing surface, prolong working life.Under action of centrifugal force, the liquid in the guiding gutter will produce a radial motion, increase hermetic resistance, strengthen sealing effect, reduce the seal ring leakage rate, improve the efficient of pump.
Be the minimum zone of pump housing internal pressure near the described cut water, reduce the spacing between basic circle and the impeller outer edge in the design process as far as possible, reduce capacity of reflux, but spacing is too little, the centrifugal pump vibration noise strengthens.Intersection point by pump housing helix and cut water place fillet in the traditional design forms throttling damping (line throttling, see Fig. 7), less gap between lengthening cut water inner side surface of the present invention and the impeller outer disc, produce bigger resistance, form throttling arc surface (face throttling), effectively reduce liquid stream and flow to low pressure area, reduce leakage loss, improve the efficient of pump by the zone of high pressure.
Beneficial effect of the present invention: there is circumferential circular rector in suction chamber outlet liquid stream, and the impeller eye impact loss reduces, and pump efficiency improves; Seal ring and lengthening cut water place gap leakage flow rate reduce, and leakage loss reduces; The seal ring seal performance is good, and long service life is particularly useful for the application that fed sheet of a media contains solid particle.
Description of drawings
Fig. 1 is that constructional device of the present invention is always schemed.
Fig. 2 is the structural representation of straight length of the present invention.
Fig. 3 is the enlarged view at the present invention a place in Fig. 1.
Fig. 4 is an impeller ring planimetric map of the present invention.
Fig. 5 is a conventional impellers seal ring planimetric map.
Fig. 6 is a pump housing lengthening cut water structural representation of the present invention.
Fig. 7 is common cut water structural representation.
Embodiment
With reference to Fig. 1-7, novel high-efficient energy-saving pump, comprise suction chamber 1, impeller 2, the pump housing 3, casing ring 4, impeller ring 5 and other universal components, described suction chamber 1 is made of straight length 12 two-part of straight-tapered suction chamber 11 and outlet end thereof, establishes tilt clapboard 12a in the described straight length 12.
The true dip direction of described dividing plate 12a is consistent with impeller 2 sense of rotation.
Described impeller ring 5 outer side surfaces circumferentially are evenly distributed with guiding gutter 51.
The described pump housing 3 is with lengthening cut water 31, and the less gap between described lengthening cut water 31 inner side surfaces and impeller 2 peripheries produces bigger resistance, forms throttling arc surface 31a; The outer molded lines of described lengthening cut water 31 be with basic circle 32 concentric wait circular arc.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.

Claims (1)

1. novel high-efficient energy-saving pump, comprise suction chamber, impeller, the pump housing, casing ring, impeller ring, it is characterized in that: described suction chamber is made of straight length two-part of straight-tapered suction chamber and outlet end thereof, establish tilt clapboard in the described straight length, the true dip direction of described dividing plate is consistent with the impeller sense of rotation, described impeller ring outer side surface circumferentially is evenly distributed with guiding gutter, the described pump housing is with the lengthening cut water, gap between described lengthening cut water inner side surface and the impeller outer disc, produce bigger resistance, form the throttling arc surface; The outer molded lines of described lengthening cut water is the grade circular arc concentric with basic circle.
CN2009101541102A 2009-11-05 2009-11-05 Novel high-efficient energy-saving pump Expired - Fee Related CN101709720B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101541102A CN101709720B (en) 2009-11-05 2009-11-05 Novel high-efficient energy-saving pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101541102A CN101709720B (en) 2009-11-05 2009-11-05 Novel high-efficient energy-saving pump

Publications (2)

Publication Number Publication Date
CN101709720A CN101709720A (en) 2010-05-19
CN101709720B true CN101709720B (en) 2011-05-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009101541102A Expired - Fee Related CN101709720B (en) 2009-11-05 2009-11-05 Novel high-efficient energy-saving pump

Country Status (1)

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CN (1) CN101709720B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865157A (en) * 2010-06-11 2010-10-20 中国兵器工业集团第七O研究所 Centrifugal water pump
CN106224245A (en) * 2016-09-23 2016-12-14 兰州理工大学 A kind of centrifugal pump of innovative blade
CN109458348A (en) * 2018-11-13 2019-03-12 刘丽丽 A kind of industrial water pump with energy-saving effect

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Publication number Publication date
CN101709720A (en) 2010-05-19

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Maanshan Jiateng Energy-Saving Technology Co.,Ltd.

Assignor: Zhejiang University of Technology

Contract record no.: 2012340000204

Denomination of invention: Novel high-efficient energy-saving pump

Granted publication date: 20110525

License type: Exclusive License

Open date: 20100519

Record date: 20120702

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110525

Termination date: 20151105

EXPY Termination of patent right or utility model