CN200940591Y - Mouth-ring seal structure of centrifugal pump/vane wheel - Google Patents

Mouth-ring seal structure of centrifugal pump/vane wheel Download PDF

Info

Publication number
CN200940591Y
CN200940591Y CN 200620106723 CN200620106723U CN200940591Y CN 200940591 Y CN200940591 Y CN 200940591Y CN 200620106723 CN200620106723 CN 200620106723 CN 200620106723 U CN200620106723 U CN 200620106723U CN 200940591 Y CN200940591 Y CN 200940591Y
Authority
CN
China
Prior art keywords
impeller
pump
centrifugal pump
seal structure
ring seal
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 - Lifetime
Application number
CN 200620106723
Other languages
Chinese (zh)
Inventor
沈国连
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanfang Pump Industry Co.,Ltd.
Original Assignee
沈金浩
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 沈金浩 filed Critical 沈金浩
Priority to CN 200620106723 priority Critical patent/CN200940591Y/en
Application granted granted Critical
Publication of CN200940591Y publication Critical patent/CN200940591Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model relates to a centrifugal pump impeller wear ring seal structure. Water inlet combining part of impeller and pump body is arranged with a cavity which is composed by the pump body and guide vane, and a first O shape seal cycle ring is arranged in the cavity. The useful effect of the utility model is that the first O shape cycle ring is laid on the pump body and impeller wear ring and shows sliding coordination due to the pressure difference, therefore reducing the clearance between rotation part impeller of high partition and low pressure area and fixed part pump body, and improving the whole work efficiency of the centrifugal pump.

Description

A kind of centrifugal pump impeller control ring seal structure
Technical field
The utility model relates to a kind of seal arrangement that is used for centrifugal pump, mainly is a kind of centrifugal pump impeller control ring seal structure.
Background technique
Centrifugal pump is a kind of machinery, is widely used, and is of a great variety, and 4 kinds of division method are arranged usually: the rotating shaft position according to pump can divide horizontal and vertical two kinds.Be divided into two kinds of single suction and double suctions according to the liquid suction.Can be divided into single-stage and multistage two kinds according to the number on the pump shaft impeller.Multistage is exactly on same pump shaft, loads onto several impellers, and liquid successively by each impeller, is equivalent to a plurality of single-stage pumps and is cascaded in pump, can produce very high pressure.
Centrifugal pump is to carry liquid by the centrifugal force that impeller produced of high speed rotating, the rotation of blade force fluid in the impeller, liquid under action of centrifugal force to around throw away.Liquid in the pump is when throwing out, and new liquid enters in the pump under the effect of atmospheric pressure.So liquid continuously flows out in pump.
The effect of impeller is that the liquid energy of the impeller of flowing through is increased, and the effect of the pump housing is to collect the highly pressurised liquid that flows out in the impeller.Impeller is a high speed rotating, and the pump housing is fixed, has relative movement between the impeller and the pump housing, so be Spielpassung.The cavity that the impeller and the pump housing constituted exists pressure reduction between the import of impeller and outlet.Lift of pump is high more, and this pressure reduction is just big more.So have partially liq certainly by impeller and pump housing gap (as the relative movement gap location 15 of Fig. 1), flow to the low pressure area 13 of impeller inlet from the zone of high pressure 14 of impeller outlet, in the pump housing, circulate, certainly will influence the efficient of pump like this.This gap is more little, and hydraulic loss is just more little, but just high more to the requirement on machining accuracy and the processing cost of corresponding part.So this is a pair of contradiction, the artificer must find balance between this is to contradiction.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of centrifugal pump impeller control ring seal structure is provided.
The utility model solves the technological scheme that its technical problem adopts: this centrifugal pump impeller control ring seal structure, the water intake cooperation place of the impeller and the pump housing are provided with a cavity that is made of the pump housing and stator, are provided with an O RunddichtringO in this cavity.
The effect that the utility model is useful is: owing to the reason of pressure difference, so an O type circle leans against on the pump housing and the impeller port ring, and be and be slidingly matched, thereby significantly reduced the rotatable parts impeller that cuts off high and low nip and the gap between the fixed component pump housing, improved the whole work efficiency of centrifugal pump.
Description of drawings
Fig. 1 is the main TV structure schematic representation of prior art;
Fig. 2 is a main TV structure schematic representation of the present utility model;
Description of reference numerals: the pump housing 1, impeller 2, motor shaft 3, mechanical seal 4, sealing seat board 5, stator 6, plug 7, the one O RunddichtringOs 8, the two O RunddichtringOs 9, the three O RunddichtringOs 10, water intake 11, water outlet 12, low pressure area 13, zone of high pressure 14, relative movement gap location 15.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Centrifugal pump impeller control ring seal structure described in the utility model in the application of the horizontal single stage centrifugal pump of stainless steel as shown in Figure 2, this centrifugal pump comprises the pump housing 1 and impeller 2, impeller 2 is fixedlyed connected with motor shaft 3, and water intake 11 axially is connected with impeller 2, and water outlet 12 radially is connected with impeller 2.The water intake cooperation place of the impeller 2 and the pump housing 1 is provided with a cavity that is made of the pump housing 1 and stator 6, is provided with an O RunddichtringO 8 in this cavity.A described O RunddichtringO 8 is to lean against on the choma of the pump housing 1 and impeller 2, and is and is slidingly matched, thereby has significantly reduced the gap of 1 of the rotatable parts impeller 2 that cuts off zone of high pressure 14, low pressure area 13 and the fixed component pump housing.The top of described impeller 2 is provided with sealing seat board 5, and sealing seat board 5 is sleeved on the motor shaft 3 and adopts mechanical seal 4 to seal, and is provided with the 3rd O RunddichtringO 10 between sealing seat board 5 and the pump housing 1 shell.The described pump housing 1 is provided with the plug 7 that is used to charge and discharge water, is provided with the 2nd O RunddichtringO 9 between the outer wall of the plug 7 and the pump housing 1.

Claims (2)

1, a kind of centrifugal pump impeller control ring seal structure is characterized in that: the water intake cooperation place of the impeller (2) and the pump housing (1) is provided with a cavity that is made of the pump housing (1) and stator (6), is provided with an O RunddichtringO (8) in this cavity.
2, centrifugal pump impeller control ring seal structure according to claim 1 is characterized in that: a described O RunddichtringO (8) is to lean against on the choma of the pump housing (1) and impeller (2), and is and is slidingly matched.
CN 200620106723 2006-08-15 2006-08-15 Mouth-ring seal structure of centrifugal pump/vane wheel Expired - Lifetime CN200940591Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620106723 CN200940591Y (en) 2006-08-15 2006-08-15 Mouth-ring seal structure of centrifugal pump/vane wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620106723 CN200940591Y (en) 2006-08-15 2006-08-15 Mouth-ring seal structure of centrifugal pump/vane wheel

Publications (1)

Publication Number Publication Date
CN200940591Y true CN200940591Y (en) 2007-08-29

Family

ID=38746768

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620106723 Expired - Lifetime CN200940591Y (en) 2006-08-15 2006-08-15 Mouth-ring seal structure of centrifugal pump/vane wheel

Country Status (1)

Country Link
CN (1) CN200940591Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321950A (en) * 2013-07-02 2013-09-25 台州豪贝泵业有限公司 Self-adaptive opening ring adjusting device for pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321950A (en) * 2013-07-02 2013-09-25 台州豪贝泵业有限公司 Self-adaptive opening ring adjusting device for pump
CN103321950B (en) * 2013-07-02 2015-09-16 台州豪贝泵业有限公司 A kind of pump adaptivity regulates choma device

Similar Documents

Publication Publication Date Title
CN103883520B (en) The rotor-type submersible pump of eccentric shaft and motor direct connection
CN201265547Y (en) Balancing type single-suction horizontal multiple-stage centrifugal pump
CN102003408B (en) Low specific speed centrifugal impeller with radial backflow holes
CN101818735B (en) High-speed multistage turbine vacuum pump and evacuation method thereof
CN103775298A (en) Radial plunger deep water submersible pump
CN203308733U (en) Traction-level compound molecule pump
CN200940591Y (en) Mouth-ring seal structure of centrifugal pump/vane wheel
CN201747618U (en) Dual-suction multistage centrifugal pump
CN203394792U (en) Energy-saving multistage deep well submersible and centrifugal pump
CN202833205U (en) Double-way spiral liquid supply device
CN2276572Y (en) Segmental opposed voluted type multistage slag thick liquid pump
CN206592308U (en) A kind of high rate turbine vacuum pump with energy recovery turbine
US5344281A (en) Rotary vortex machine
CN1657785A (en) Double-runner centrifugal pump for transfering submarine mineral substance
CN203453075U (en) Compound pump
CN206874490U (en) Axial subdivision three-level centrifugal pump
CN2185816Y (en) Non-axial force segmental type multi-stage centrifugal pump
CN205064285U (en) Two -stage centrifugal pump is supported at radial subdivision both ends
CN106762742A (en) A kind of high rate turbine vacuum pump with energy recovery turbine
CN101985930B (en) Rotor type deep submersible pump
CN105485022B (en) Sectional multi-stage centrifugal pump
CN103410742A (en) Compound pump
CN2893245Y (en) Double-suction centrifugal pump seal ring
CN211778165U (en) Novel balance drum device of vertical multistage pipeline pump
CN207583672U (en) Throttling balancing drum and set

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HANGZHOU NANFANG SPECIAL PUMP CO., LTD.

Free format text: FORMER OWNER: SHEN JINHAO

Effective date: 20091225

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20091225

Address after: Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou Province, China: 311107

Patentee after: Hangzhou Nanfang Special Pump Industry Co., Ltd.

Address before: Hangzhou Yuhang Nanfang special pump industry Co., Ltd., Renhe Town, Hangzhou, Zhejiang, China: 311107

Patentee before: Shen Jinhao

ASS Succession or assignment of patent right

Owner name: NANFANG PUMP INDUSTRY CO., LTD.

Free format text: FORMER OWNER: HANGZHOU NANFANG SPECIAL PUMP INDUSTRY CO., LTD.

Effective date: 20110615

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20110615

Address after: 311107 Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou

Patentee after: Nanfang Pump Industry Co.,Ltd.

Address before: 311107 Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou

Patentee before: Hangzhou Nanfang Special Pump Industry Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20070829

EXPY Termination of patent right or utility model