CN2471976Y - Multifunctional self sucking centrifugal pump with casing integrated with body - Google Patents
Multifunctional self sucking centrifugal pump with casing integrated with body Download PDFInfo
- Publication number
- CN2471976Y CN2471976Y CN 01215697 CN01215697U CN2471976Y CN 2471976 Y CN2471976 Y CN 2471976Y CN 01215697 CN01215697 CN 01215697 CN 01215697 U CN01215697 U CN 01215697U CN 2471976 Y CN2471976 Y CN 2471976Y
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- centrifugal pump
- housing
- self
- casing body
- 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
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Abstract
The utility model relates to a housing-style integrative multilevel self-sucking centrifugal pump, which comprises an overall cast casing body and a nozzle, a return valve, an impeller, a transition section, a transmission shaft, a steel rubber ball, a sliding bearing, a shaft sleeve, a tightly fixed screw and a bracket assembly which are all arranged inside the casing body. At least a transmission shaft is arranged in the same casing body and at least two impellers arrayed and rotated in the same direction are positioned on each transmission shaft. The utility model simplifies the structure and installation craft, reduces the amount of the parts and working procedure, reduces the production cost and has the advantages of short self-sucking time, high sucking distance, high efficiency, simple structure, convenient operation, high reliability, compact size, low cost and other advantages.
Description
The utility model relates to the self-priming centrifugal pump technical field, the multistage self-priming centrifugal pump of particularly a kind of housing integral type.
Existing a kind of single stage centrifugal pump is to adopt the internal-mixing structure to realize self-priming, it is made up of housing, impeller, transmission shaft, nozzle, reflux valve, steel core ball, bracket assembly etc., but when the single-stage self-priming centrifugal pump used under the situation of low specific speed, efficient was lower than multistage centrifugal pump.Existing twin-stage self-priming centrifugal pump, form by housing, impeller, dividing plate transmission shaft, nut, sliding bearing, axle sleeve, front pump cover, rear pump cover, bracket assembly etc., adopt the external mixture type self-priming, return port is not stifled, use turns to two different impellers, lean against and be installed in privately in the same housing, separate with dividing plate between impeller, former and later two suction eyes are respectively towards forward and backward pump cover; Two impellers must be respectively charged into from the two ends of pump during installation, be locked in two impellers on the transmission shaft with nut after, just can load onto front shroud, the fitting operation inconvenience, labor intensity is big slightly; Because not stifled return port causes hydraulic loss and efficient to reduce.
The purpose of this utility model provides a kind of simple in structure, fitting operation multistage self-priming centrifugal pump of housing integral type easily.
The purpose of this utility model is achieved in that the multistage self-priming centrifugal pump of a kind of housing integral type, comprise housing, impeller, changeover portion, transmission shaft, acorn nut, nozzle, reflux valve, steel core ball, sliding bearing, axle sleeve, Cock screw and bracket assembly, be provided with at least one transmission shaft in the described same housing, on every transmission shaft, be equipped with two at least and arrange and turn to identical impeller in the same way.In same housing, 1-3 transmission shafts can be housed.On the described every transmission shaft 2-6 impellers can be housed.
The utility model adopts housing integral type and use to turn to identical impeller, has reduced number of spare parts and machining workload, convenient mounting or dismounting; Adopt awl end Cock screw that changeover portion is positioned, simplify the structure; Mix outer flow passage ball valve recloser structure in adopting, hydraulic loss is little.Thereby, have self-priming time short, inhale journey height, efficient height, simple in structure, volume is little, in light weight, easy to operate, reliability is high, low cost and other advantages.It is applicable to pumps the liquid that multiple liquid, especially clear water and physicochemical properties are similar to water.
Fig. 1 is an embodiment's of the utility model a structural representation.
The utility model is described in further detail below in conjunction with drawings and Examples.
The composition of the multistage self-priming centrifugal pump of the utility model embodiment's housing integral type as shown in Figure 1, wherein: 1: housing, 2: impeller, 3: changeover portion, 4: transmission shaft, 5: acorn nut, 6: nozzle, 7: reflux valve, 8: steel core ball, 9: sliding bearing, 10: axle sleeve, 11: awl end Cock screw, 12: bracket assembly.
During installation, on transmission shaft 4, pack into successively impeller 2, pack into changeover portion 3, axle sleeve 10, the bracket assembly 12 of sliding bearing 9, it is locked by acorn nut 5 at transmission shaft 4 the other ends, this moment each changeover portion 3 the runner inlet substantially facing one direction, be inserted in then in the housing 1.For tight location, gap cooperates, changeover portion 3 can move axially on transmission shaft 4 within the specific limits between changeover portion 3 and the housing 1, after tightening awl and holding Cock screw 11, can realize the accurate location of changeover portion 3 in housing 1.When the multistage self-priming centrifugal pump of present embodiment housing integral type begins self-priming, liquid is mixed and fed into impeller 2 through reflux valve 7, nozzle 6 with gas, after self-priming finishes, pump inlet is in low pressure, after with the formed pressure difference of the high pressure in the pump steel core ball 8 being picked up and block the backflow runner, pump enters normally pumps liquid.
Claims (3)
1, the multistage self-priming centrifugal pump of a kind of housing integral type, comprise housing, impeller, changeover portion, transmission shaft, acorn nut, nozzle, reflux valve, steel core ball, sliding bearing, axle sleeve, Cock screw and bracket assembly, it is characterized in that being provided with at least one transmission shaft in the described same housing, on every transmission shaft, be equipped with two at least and arrange and turn to identical impeller in the same way.
2, the multistage self-priming centrifugal pump of housing integral type according to claim 1 is characterized in that being equipped with 1-3 transmission shafts in same housing.
3, the multistage self-priming centrifugal pump of housing integral type according to claim 1 is characterized in that on the described every transmission shaft 2-6 impellers being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215697 CN2471976Y (en) | 2001-03-19 | 2001-03-19 | Multifunctional self sucking centrifugal pump with casing integrated with body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215697 CN2471976Y (en) | 2001-03-19 | 2001-03-19 | Multifunctional self sucking centrifugal pump with casing integrated with body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471976Y true CN2471976Y (en) | 2002-01-16 |
Family
ID=33634232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01215697 Expired - Fee Related CN2471976Y (en) | 2001-03-19 | 2001-03-19 | Multifunctional self sucking centrifugal pump with casing integrated with body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471976Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153997A (en) * | 2014-08-19 | 2014-11-19 | 台州谊聚机电有限公司 | Cylinder mixing type self-priming pump |
| US9879680B2 (en) | 2011-03-29 | 2018-01-30 | Grundfos Management A/S | Multi-stage centrifugal pump unit |
-
2001
- 2001-03-19 CN CN 01215697 patent/CN2471976Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9879680B2 (en) | 2011-03-29 | 2018-01-30 | Grundfos Management A/S | Multi-stage centrifugal pump unit |
| CN110307166A (en) * | 2011-03-29 | 2019-10-08 | 格伦德福斯管理联合股份公司 | Multistage centrifugal pump assembly |
| EP2505842B1 (en) | 2011-03-29 | 2019-12-25 | Grundfos Management a/s | Multi stage centrifugal pump system |
| CN104153997A (en) * | 2014-08-19 | 2014-11-19 | 台州谊聚机电有限公司 | Cylinder mixing type self-priming pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020116 |