CN203717360U - Two-stage non-blockage sewage pump - Google Patents
Two-stage non-blockage sewage pump Download PDFInfo
- Publication number
- CN203717360U CN203717360U CN201420029782.7U CN201420029782U CN203717360U CN 203717360 U CN203717360 U CN 203717360U CN 201420029782 U CN201420029782 U CN 201420029782U CN 203717360 U CN203717360 U CN 203717360U
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- CN
- China
- Prior art keywords
- impeller
- stage
- chamber
- stator
- sewage pump
- 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.)
- Withdrawn - After Issue
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Abstract
A two-stage non-blockage sewage pump comprises a suction chamber, a primary impeller, a guide blade, a secondary impeller, an extruding chamber, a suspension, an oil chamber and a rotation shaft. The suction chamber is connected with the guide blade which is disposed on the right of the suction chamber, the right end of the guide blade is connected with the extruding chamber, the secondary impeller is mounted in the extruding chamber, the left end of the rotation shaft is connected with the primary impeller, contractive flow passages in the primary impeller and the secondary impeller, and the flow passage area is contracted gradually from the inlet to the outlet. The guide blade comprises an inner ring and an outer ring. A spiral cutting groove is formed in the inner wall of the outer ring, and a spiral blade matched with the spiral cutting groove is arranged on the outer side of the inner ring. According to the sewage pump, stage design is used, each stage of the impeller produces certain lift, the high-lift technical effect is achieved, and each stage of the impeller is designed according to non-equal-proportion rotation speeds, so that the output efficiency is greatly improved; by the matching of the spiral cutting groove and the spiral blade in the guide blade, long fibers in sewage can be cut off effectively, and blockage is prevented.
Description
Technical field
The utility model relates to a kind of twin-stage without stopping up sewage pump.
Background technique
Sewage pump, being widely used in the liquid that contains solid particle suspended matter or fibrous suspended matter in the industries such as municipal administration, environmental protection, sewage treatment, light industry, chemical industry, mine, oil, water conservancy, metallurgy and carrying, is one of the big power consumer of relevant every profession and trade and key equipment.
The sewage pump ubiquity efficiency of at present domestic production is low, energy consumption is high, lift is low, blocking phenomenon is serious, the very large lifting elevation of needs occasion is often adopted to Multi-stage lifting pumping plant, cause construction investment larger, this has restricted the further application of sewage pump to a great extent.
Model utility content
For the defect existing in prior art, the utility model provide a kind of lift high, be difficult for stopping up and the high twin-stage of efficiency without stopping up sewage pump.
Concrete technological scheme is: a kind of twin-stage is without stopping up sewage pump, comprise suction chamber, first stage impeller, stator, secondary impeller, delivery chamber, suspension, grease chamber and rotating shaft, suction chamber is connected with stator, stator is positioned at suction chamber right side, stator right-hand member is connected with delivery chamber, secondary impeller is arranged in pumping chamber, rotating shaft left end is connected with first stage impeller, the other end runs through stator, secondary impeller and grease chamber are to suspension right side, runner in described first stage impeller and secondary impeller adopts contraction runner, Flow area becomes gradual shrinkage from import to Way out, described stator comprises inner ring and outer ring, the inwall of outer ring is provided with helical cut groove, the outer side surface of inner ring is provided with the helical blade coordinating with helical cut groove.
Described first stage impeller and secondary impeller are pressed not geometric ratio Design of Rotation, and the specific speed of first stage impeller is
,
for the specific speed of secondary impeller.
The joint of described rotating shaft and left and right, grease chamber end face is equipped with mechanical sealing element.
The utility model adopts grading design, every grade of impeller produces certain lift, thereby reach high-lift technique effect, every grade of pump impeller is pressed not geometric ratio Design of Rotation, greatly improve delivery efficiency, the long fibre in sewage can be effectively cut in cooperation by the helical cut groove in stator and helical blade, avoids blockage phenomenon.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of twin-stage is without stopping up sewage pump, comprise suction chamber 1, first stage impeller 2, stator 3, secondary impeller 4, delivery chamber 5, suspension 6, grease chamber 7 and rotating shaft 8, suction chamber 1 is connected with stator 3 left ends, suction chamber 1 is positioned at first stage impeller 2 left sides, stator 3 is connected with suction chamber 1 left end, stator 3 right-hand members are connected with delivery chamber 5, secondary impeller 4 is arranged in delivery chamber 5, rotating shaft 8 left ends are connected with first stage impeller 2, the other end runs through stator 3, secondary impeller 4 and grease chamber 7 are to the right side of suspension 6, runner in described first stage impeller 2 and secondary impeller 4 adopts contraction runner, Flow area becomes gradual shrinkage to change (gross area reduces gradually from import to outlet) from import to two Way out, not only improve anti-cavitation erosion ability, and avoid separation of flow phenomenon in runner, reduce divergence loss, effectively improve the efficiency of pump.Stator 3 comprises inner ring 9 and outer ring 10, and the inwall of outer ring 10 is provided with helical cut groove 11, and the outer side surface of inner ring 9 is provided with the helical blade 13 coordinating with helical cut groove 11.
In the time that the utility model is worked, rotating shaft 8 is rotated and is driven first stage impeller 2, inner ring 9 and secondary impeller 4, rotation by first stage impeller 2 and secondary impeller 4 produces pressure difference, sewage enters from suction chamber 1 in the runner of first stage impeller 2, then flow into stator 3, cooperation by helical cut groove 11 and helical blade 13 can be cut off the long fibre in sewage, helical cut groove 11 can be by particle and fiber smooth delivery of power simultaneously, thereby prevent to stop up, sewage enters from stator 3 in the runner of secondary impeller 4, utilize the rotating boosting function of secondary impeller 4 further to improve the flowing velocity of sewage, thereby reach the object of high-lift water outlet, sewage finally flows out from delivery chamber 5.
The specific speed of described first stage impeller is
,
for the specific speed of secondary impeller, can better promote working efficiency.
Described rotating shaft 8 is equipped with mechanical sealing element 12 with the joint of grease chamber's 7 left and right end faces, effectively prevents that grease chamber 7 from oil leakage phenomenon occurring, and improves working life.
Claims (3)
1. a twin-stage is without stopping up sewage pump, comprise suction chamber, first stage impeller, stator, secondary impeller, delivery chamber, suspension, grease chamber and rotating shaft, suction chamber is connected with stator, stator is positioned at suction chamber right side, stator right-hand member is connected with delivery chamber, secondary impeller is arranged in pumping chamber, rotating shaft left end is connected with first stage impeller, the other end runs through stator, secondary impeller and grease chamber are to suspension right side, it is characterized in that: the runner in described first stage impeller and secondary impeller adopts contraction runner, Flow area becomes gradual shrinkage from import to Way out, described stator comprises inner ring and outer ring, the inwall of outer ring is provided with helical cut groove, the outer side surface of inner ring is provided with the helical blade coordinating with helical cut groove.
2. twin-stage as claimed in claim 1, without stopping up sewage pump, is characterized in that: described first stage impeller and secondary impeller are pressed not geometric ratio Design of Rotation, and the specific speed of first stage impeller is
,
for the specific speed of secondary impeller.
3. twin-stage as claimed in claim 1, without stopping up sewage pump, is characterized in that: the joint of described rotating shaft and left and right, grease chamber end face is equipped with mechanical sealing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029782.7U CN203717360U (en) | 2014-01-17 | 2014-01-17 | Two-stage non-blockage sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029782.7U CN203717360U (en) | 2014-01-17 | 2014-01-17 | Two-stage non-blockage sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717360U true CN203717360U (en) | 2014-07-16 |
Family
ID=51156518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420029782.7U Withdrawn - After Issue CN203717360U (en) | 2014-01-17 | 2014-01-17 | Two-stage non-blockage sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758761A (en) * | 2014-01-17 | 2014-04-30 | 新乡学院 | Double-stage non-clogging sewage pump |
-
2014
- 2014-01-17 CN CN201420029782.7U patent/CN203717360U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758761A (en) * | 2014-01-17 | 2014-04-30 | 新乡学院 | Double-stage non-clogging sewage pump |
| CN103758761B (en) * | 2014-01-17 | 2016-05-18 | 新乡学院 | Twin-stage is without stopping up sewage pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |