CN2556405Y - Single-stage double-suction centrifugal sewage pump - Google Patents

Single-stage double-suction centrifugal sewage pump Download PDF

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Publication number
CN2556405Y
CN2556405Y CN 02224395 CN02224395U CN2556405Y CN 2556405 Y CN2556405 Y CN 2556405Y CN 02224395 CN02224395 CN 02224395 CN 02224395 U CN02224395 U CN 02224395U CN 2556405 Y CN2556405 Y CN 2556405Y
Authority
CN
China
Prior art keywords
pump
main shaft
stage double
impeller
bearing part
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
CN 02224395
Other languages
Chinese (zh)
Inventor
周和平
李咏兰
余学军
周纪明
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.)
Guluo Pump Making Co ltd Tongd
Original Assignee
Guluo Pump Making Co ltd Tongd
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 Guluo Pump Making Co ltd Tongd filed Critical Guluo Pump Making Co ltd Tongd
Priority to CN 02224395 priority Critical patent/CN2556405Y/en
Application granted granted Critical
Publication of CN2556405Y publication Critical patent/CN2556405Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a single-stage double suction centrifugal sewage pump. The main characteristics are as follows: the pump shell is split, the pump body and the pump cover take the axial lead as a split surface, the inlet and the outlet of the pump are both arranged below the axial lead of the pump, the shaft seal is a mechanical seal and is externally connected with a water seal pipeline, and two ends of the main shaft are fixed on the pump body through a bearing part. The utility model discloses suitable dry-type installation saves the capital construction expense than vertical sewage pump, and hydraulic model is outstanding, and the sewage filth passes through the ability reinforce, the pump body corrosion resistant that wear-resistants, and unit operating efficiency is high, and is longe-lived, and it is convenient to maintain.

Description

The centrifugal sewage pump of single-stage double-suction
One, technical field:
The utility model relates to the centrifugal sewage pump of a kind of single-stage double-suction, belongs to the centrifugal pump technical field.
Two, background technique:
The domestic pump type that is used for sewage treatment has QW type submersible type pollution discharge pump, the vertical sewage pump of WL type, YW type liquid following formula not to have obstruction etc. at present.Such pump adopts single-stage double-suction runner form, though the dirt passing capacity is good, efficient is not high, and structure is complicated, the pump housing is an integrated type, connect together with motor, not only make difficulty, and be the wet type installation, the civil works expense is big, because pump is in the following work of sewage level for a long time, is out of order inconvenient maintenance easily.
Three, summary of the invention:
The purpose of this utility model be to provide a kind of hydraulic performance outstanding, energy-efficient, install and use and easy to maintenance, long service life, the centrifugal sewage pump of single-stage double-suction applied widely.
The technical solution of the utility model is: mainly be made up of the pump housing, pump cover, impeller, main shaft, seal ring, bearing part and axle envelope parts, the described pump housing and pump cover are formed pump case, and described impeller, main shaft, axle sleeve, bearing part and axle envelope parts are formed rotor part; It is characterized in that: pump case is split type, and the pump housing, pump cover are parting plane with the shaft axis, and all below the pump shaft axis, the axle envelope is mechanical seal in the pump import and export, external water seal pipeline, and the main shaft two ends are fixed on the pump housing by bearing part.
Impeller hydraulic model of the present utility model is outstanding, has good dirt passing capacity, pump case adopts split type, the pump housing and pump cover are parting plane with the shaft centre line, easy access and maintaining, axle envelope parts adopt mechanical seal, for the clear water cooling, wash mechanical sealed friction surface with outer, accomplish not have and leak, pollution-free, flow passage components such as the pump housing, pump cover, impeller and main shaft adopt wear-resistant anticorrosive material, and wear-resistant corrosion resistant ability is strong, long service life, whole unit adopts dry type to install, and needn't be installed in below the sewage level, can save a large amount of civil works expenses.
Four, description of drawings:
Fig. 1 is the utility model structural representation.
Among the figure: 1, machine sealed cover; 2, axle sleeve; 3, pump cover; 4, impeller; 5, main shaft; 6, water seal pipeline; 7, the pump housing; 8, mechanical seal; 9, bearing part.
Five, embodiment:
As shown in the figure, the utility model is formed rotor part by machine sealed cover 1, mechanical seal 8, axle sleeve 2, impeller 4, bearing part 9 with main shaft 5; The pump housing 7, pump cover 3 connect to form pump case by bolt; Rotor part and pump case connect to form total platform water pump by bolt.Transmission by elastic dowel pin shaft coupling by motor direct-drive.
Mechanical seal of the present utility model is outer for the clear water cooling by water seal pipeline 6, washes mechanical sealed friction surface.
The pump housing of the present utility model, pump cover, impeller adopt Minvar or cast steel or casting stainless steel or spheroidal graphite cast iron, and main shaft adopts Martensitic Stain Less Steel.
Flow passage components surfaces such as the pump housing of the present utility model, pump cover, impeller and main shaft all scribble one deck wear-and corrosion-resistant paint, to adapt to various different mediums, improve working life.
Bearing in the bearing part of the present utility model adopts radial ball bearing, and is lubricated with butter.

Claims (4)

1, the centrifugal sewage pump of a kind of single-stage double-suction, form by the pump housing, pump cover, impeller, main shaft, seal ring, bearing part and axle envelope parts, the described pump housing and pump cover are formed pump case, and described impeller, main shaft, axle sleeve, bearing part and axle envelope parts are formed rotor part; It is characterized in that: pump case is split type, and the pump housing, pump cover are parting plane with the shaft axis, and all below the pump shaft axis, the axle envelope is mechanical seal in the pump import and export, external water seal pipeline, and the main shaft two ends are fixed on the pump housing by bearing part.
2, the centrifugal sewage pump of single-stage double-suction according to claim 1 is characterized in that: the pump housing, pump cover, impeller adopt Minvar or cast steel or casting stainless steel or spheroidal graphite cast iron, and main shaft adopts Martensitic Stain Less Steel.
3, the centrifugal sewage pump of single-stage double-suction according to claim 2 is characterized in that: flow passage components surfaces such as the pump housing, pump cover, impeller and main shaft all scribble one deck wear-and corrosion-resistant paint.
4, the centrifugal sewage pump of single-stage double-suction according to claim 1 is characterized in that: the bearing in the bearing part adopts radial ball bearing.
CN 02224395 2002-07-01 2002-07-01 Single-stage double-suction centrifugal sewage pump Expired - Fee Related CN2556405Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02224395 CN2556405Y (en) 2002-07-01 2002-07-01 Single-stage double-suction centrifugal sewage pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02224395 CN2556405Y (en) 2002-07-01 2002-07-01 Single-stage double-suction centrifugal sewage pump

Publications (1)

Publication Number Publication Date
CN2556405Y true CN2556405Y (en) 2003-06-18

Family

ID=33701819

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02224395 Expired - Fee Related CN2556405Y (en) 2002-07-01 2002-07-01 Single-stage double-suction centrifugal sewage pump

Country Status (1)

Country Link
CN (1) CN2556405Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182693A (en) * 2011-05-26 2011-09-14 韩艾良 Conveniently-dismounted upright single-stage double-suction centrifugal pump
CN102667176A (en) * 2009-11-26 2012-09-12 株式会社久保田 Centrifugal pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102667176A (en) * 2009-11-26 2012-09-12 株式会社久保田 Centrifugal pump
CN102667176B (en) * 2009-11-26 2016-05-04 株式会社久保田 Centrifugal pump
CN102182693A (en) * 2011-05-26 2011-09-14 韩艾良 Conveniently-dismounted upright single-stage double-suction centrifugal pump

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee