CN103511289A - Novel multi-level efficient self-sucking pump - Google Patents
Novel multi-level efficient self-sucking pump Download PDFInfo
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- CN103511289A CN103511289A CN201210199684.3A CN201210199684A CN103511289A CN 103511289 A CN103511289 A CN 103511289A CN 201210199684 A CN201210199684 A CN 201210199684A CN 103511289 A CN103511289 A CN 103511289A
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- impeller
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Abstract
The invention relates to a structural type of a novel multi-level efficient self-sucking pump. The novel multi-level efficient self-sucking pump comprises a base, a pump body, a bearing body, a shaft, a motor, a water injection hole, a water discharging hole, a water inlet pipe and a water outlet pipe. The novel multi-level efficient self-sucking pump is characterized in that a primary-level volute is arranged in the pump body, and a primary-level impeller is arranged in the primary-level volute and is a half-open self-sucking impeller; a secondary-level volute is further arranged in the pump body, a secondary-level impeller is arranged in the secondary-level volute and is a closed impeller, the primary-level impeller and the secondary-level impeller are arranged back to back, the shaft between the primary-level impeller and the secondary-level impeller is provided with a guide bearing, and the portion, at the position of the pump, of the shaft is provided with a mechanical seal and/or a filler seal. The novel multi-level efficient self-sucking pump has the advantages of being low in power consumption, high in performance and low in noise, and completely meeting the requirement of a client.
Description
Technical field
The present invention relates to a kind of structural type of new multistage high-efficient self-priming pump.
Background technique
The self-priming pump occurring in the market is mainly divided into two large classes:
One: single-stage self-sucking pump, the seal form of this pump generally has two kinds: packing seal and dynamic seal (sub-propeller), these two kinds of seal form are only for the clean harmless operating mode without danger medium, and the seal clearance of sub-propeller is difficult to hold while adopting dynamic seal, often occur situation about revealing, this has just been doomed this pump can only be for allowing to leak the operating mode occurring; In addition, when this single-stage self-sucking pump adopts dynamic seal system, because sub-propeller is equivalent to a half-opened impeller, wanting that the axial force producing produces more than main impeller is large, so motor bearings need to bear very large axial force, this has just had a strong impact on the working life of motor; Also having a shortcoming is exactly low lift.
Two: two stage self priming pump, the basic chopped-off head half-opened impeller that all adopts of two stage self priming pump occurring at present, secondary double shrouded wheel, the structure of dynamic seal, although this structure axial force can complete equilibrium be fallen substantially, the unstability of dynamic seal system is a significant deficiency all the time, and, due to the restriction of this body structure of pump, chopped-off head half-opened impeller Chu gap is difficult to control, and this gap is determining the self-priming effect of pump.
In sum, existing self-priming pump exists a lot of problems and is badly in need of solving, as: 1. the unstability of sealing system, pumping medium can only be for clean harmless without danger medium; 2. self-priming time is long; 3. lift is low, and efficiency is low; 4. half-opened impeller and cover plate Chu gap are difficult to control.
Summary of the invention
The object of the invention is to solve the existing the problems referred to above of self-priming pump of the prior art, a kind of multi-stage, efficient self-priming pump is provided, the present invention designs a kind of new multistage high-efficient self-priming pump, comprise base, the pump housing, bearing support, axle, motor, water injection hole, dewatering orifice, intake pipe, outlet pipe, it is characterized in that: in the pump housing, be provided with chopped-off head spiral case, in chopped-off head spiral case, first stage impeller is installed, it is the self-priming impeller of semi-open type; Secondary spiral case is also installed in the pump housing, secondary impeller is installed in secondary spiral case, secondary impeller is double shrouded wheel, first stage impeller and secondary impeller are for installing back-to-back, on the axle between first stage impeller and secondary impeller, guide bearing is installed, mechanical seal and or packing seal are installed on the axle at pump housing place.It is characterized in that: chopped-off head spiral case and secondary spiral case are for being symmetrical arranged.It is characterized in that: the gap of first stage impeller and cover plate is 0.5～1 millimeter.Advantage of the present invention is low power consumption, high-performance, and low noise has fully met client's requirement.
Accompanying drawing explanation
Fig. 1 is section of structure of the present invention.
Embodiment
Figure comprises base 1, the pump housing 2, bearing support 3, axle 4, motor 5, water injection hole 6, dewatering orifice 7, intake pipe 8, outlet pipe 9, it is characterized in that: in the pump housing, be provided with chopped-off head spiral case 10, first stage impeller 11 is installed in chopped-off head spiral case, and it is the self-priming impeller of semi-open type; Secondary spiral case 12 is also installed in the pump housing, secondary impeller 13 is installed in secondary spiral case, secondary impeller is double shrouded wheel, first stage impeller and secondary impeller are for installing back-to-back, on the axle between first stage impeller and secondary impeller, guide bearing 14 is installed, mechanical seal 15 and or packing seal 16 are installed on the axle at pump housing place.It is characterized in that: chopped-off head spiral case and secondary spiral case are for being symmetrical arranged.It is characterized in that: first stage impeller and cover plate 17 gap 18 are 0.5～1 millimeter.
0.5～1 millimeter, the gap of first stage impeller and cover plate is the key factor that affects pump self-priming time and pump performance.Impeller is divided into double shrouded wheel and half-opened impeller; First stage impeller and secondary impeller are to install " back-to-back ", and the axial force that such mounting type produces in the time of can making pump operation is cancelled out each other substantially, and remaining a small amount of axial force is born by motor bearings.Use spiral case obviously than using stator to improve the efficiency of pump, two-stage is used worm frame simultaneously and is arranged symmetrically with, and radial force is cancelled out each other substantially, has guaranteed the stable operation of pump.First stage impeller adopts the self-priming impeller of semi-open type, and impeller outlet place car falls (being labeled as 19,20 be backwater hole) 5mm cover plate, can make like this liquid after separation fully mix under the effect of impeller with separating liquid not, minimizing self-priming time.Chopped-off head half-opened impeller and cover plate Chu gap are also the key factors that affects pump self-priming time and pump performance, so not only can adjust easily impeller and cover plate Chu gap, reduced volumetric loss, improved pump efficiency, and increased interchangeability and the versatility of pump component, also beneficial to later long-run development.After having adopted multilevel hierarchy form, pump shaft is elongated, has adopted guide bearing structure, has guaranteed the stability of pump shaft running.The seal form of this pump provide packing seal and or two kinds of seal form of mechanical seal, can select seal form according to the actual conditions at user scene like this, and guarantee to have reduced loss by sealing effect, improved pump efficiency.The design of sealing configuration, machine envelope or packing seal can utilization itself pump that medium lubricates and without external pipeline.
Claims (3)
1. a new multistage high-efficient self-priming pump, comprise base, the pump housing, bearing support, axle, motor, water injection hole, dewatering orifice, intake pipe, outlet pipe, it is characterized in that: in the pump housing, be provided with chopped-off head spiral case, in chopped-off head spiral case, first stage impeller be installed, it is the self-priming impeller of semi-open type; Secondary spiral case is also installed in the pump housing, secondary impeller is installed in secondary spiral case, secondary impeller is double shrouded wheel, first stage impeller and secondary impeller are for installing back-to-back, on the axle between first stage impeller and secondary impeller, guide bearing is installed, mechanical seal and or packing seal are installed on the axle at pump housing place.
2. by a kind of multi-stage, efficient self-priming pump claimed in claim 1, it is characterized in that: chopped-off head spiral case and secondary spiral case are for being symmetrical arranged.
3. by a kind of multi-stage, efficient self-priming pump claimed in claim 1, it is characterized in that: the gap of first stage impeller and cover plate is 0.5～1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199684.3A CN103511289A (en) | 2012-06-18 | 2012-06-18 | Novel multi-level efficient self-sucking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199684.3A CN103511289A (en) | 2012-06-18 | 2012-06-18 | Novel multi-level efficient self-sucking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511289A true CN103511289A (en) | 2014-01-15 |
Family
ID=49894558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210199684.3A Pending CN103511289A (en) | 2012-06-18 | 2012-06-18 | Novel multi-level efficient self-sucking pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103511289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343862A (en) * | 2020-11-21 | 2021-02-09 | 越连机电有限公司 | Novel self-priming pump and pump case thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323180Y (en) * | 1997-12-18 | 1999-06-09 | 杨大贤 | Non-blocking self-priming sewage pump |
| CN2417309Y (en) * | 1999-03-07 | 2001-01-31 | 杨桂芳 | Two stage and vertical type self-suction pipeline pump |
| US20070292267A1 (en) * | 2006-06-16 | 2007-12-20 | Seitz Douglas W | Centrifugal pump and casing therefore |
| CN102022342A (en) * | 2010-11-30 | 2011-04-20 | 浙江大学 | Convenient and fast sewage priming centrifugal pump |
-
2012
- 2012-06-18 CN CN201210199684.3A patent/CN103511289A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323180Y (en) * | 1997-12-18 | 1999-06-09 | 杨大贤 | Non-blocking self-priming sewage pump |
| CN2417309Y (en) * | 1999-03-07 | 2001-01-31 | 杨桂芳 | Two stage and vertical type self-suction pipeline pump |
| US20070292267A1 (en) * | 2006-06-16 | 2007-12-20 | Seitz Douglas W | Centrifugal pump and casing therefore |
| CN102022342A (en) * | 2010-11-30 | 2011-04-20 | 浙江大学 | Convenient and fast sewage priming centrifugal pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343862A (en) * | 2020-11-21 | 2021-02-09 | 越连机电有限公司 | Novel self-priming pump and pump case thereof |
| CN112343862B (en) * | 2020-11-21 | 2022-02-08 | 越连机电有限公司 | Novel self-priming pump and pump case thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140115 |