CN2556405Y - Single-stage double-suction centrifugal sewage pump - Google Patents
Single-stage double-suction centrifugal sewage pump Download PDFInfo
- 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
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 4
- 230000007797 corrosion Effects 0.000 claims abstract description 4
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
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
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.
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)
| 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 |
-
2002
- 2002-07-01 CN CN 02224395 patent/CN2556405Y/en not_active Expired - Fee Related
Cited By (3)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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 |