CN202056060U - Multistage centrifugal draining pump - Google Patents
Multistage centrifugal draining pump Download PDFInfo
- Publication number
- CN202056060U CN202056060U CN2011200867691U CN201120086769U CN202056060U CN 202056060 U CN202056060 U CN 202056060U CN 2011200867691 U CN2011200867691 U CN 2011200867691U CN 201120086769 U CN201120086769 U CN 201120086769U CN 202056060 U CN202056060 U CN 202056060U
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- CN
- China
- Prior art keywords
- impeller
- stage
- stage impeller
- balance
- 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.)
- Expired - Fee Related
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- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A multistage centrifugal draining pump comprises a water inlet segment, a guiding member, an intermediate segment, a water outlet segment, a first stage impeller, a second stage impeller, a balance sleeve, a balance plate, a tail cover, stuffing, a balance disc, a stuffing gland, a water retaining ring, a bearing, a first stage sealing ring, a second stage sealing ring, a shaft and a shaft sleeve; wherein a fixed part is composed of the water inlet segment, the guiding member, the water outlet segment and the first stage impeller; a rotation part is composed of the shaft, the first stage impeller, the second stage impeller, the balance disc and the shaft sleeve. The pump is characterized in that: an over-current connecting tube is disposed between the first stage impeller and the second stage impeller. In the utility model, because an over-current connecting tube is disposed between the first stage impeller and the second stage impeller, water flows into the pump chamber of the next stage; thereby the utility model reduces energy loss and can increase operating efficiency.
Description
Technical field
The utility model relates to the pump technical field, particularly a kind of multistage centrifugal draining pump.
Background technique
Centrifugal pump is a kind of pump that utilizes action of centrifugal force to increase water body pressure and make it to flow, by pump case, impeller, compositions such as rotating shaft, the driven by motor rotating shaft, rotating shaft impeller high speed rotating in pump case, water body is forced to produce centrifugal force with wheel rotation in the pump, centrifugal force forces liquid to be dished out from impeller periphery, converge into the high speed and high pressure current outside the pump case excavationg pump, the impeller center forms low pressure, thereby suck new current, constitute continuous current conveying effect, its working principle is, earlier with full of liquid in the pump, start centrifugal pump then, the impeller quick rotation, the blade of impeller orders about liquid and rotates, when rotating, liquid rely on inertia to the impeller outer edge diffluence, impeller is from suction chamber inspiration liquid simultaneously, and in this course, the liquid in the impeller streams blade, liquid effects one lift is in blade in streaming motion, blade is with a lift equal and opposite in direction therewith conversely, the masterpiece that direction is opposite is used for liquid, and this power is done work to liquid, makes liquid obtain energy and flows out impeller, at this moment the kinetic energy of liquid and pressure energy all increase, and centrifugal pump relies on rotary blade that the effect of liquid is passed to liquid to the mechanical energy of prime mover.Because the effect liquid of centrifugal pump flows to the process of outlet from impeller inlet, its speed energy and pressure can all obtain increasing, the liquid of being discharged by impeller passes through delivery chamber, most of speed can convert the pressure energy to, transfer out along discharge conduit then, its shortcoming is to be provided with to lead justice between sencond stage impeller, and current can not directly enter the next stage pump chamber, cause energy loss.
Summary of the invention
The purpose of this utility model provides a kind of multistage centrifugal draining pump of high working efficiency.
The utility model is to realize like this, it it comprise inlet segment, lead justice, stage casing, water exit end, first stage impeller, second level impeller, balance set, balance plate, tail-hood, filler, Balance disc, Gland, water retaining ring, bearing, chopped-off head seal ring, second level seal ring, axle and axle sleeve, by inlet segment, lead justice, water exit end and first order impeller and constitute standing part, constitute rotating part by axle, first stage impeller, second level impeller, Balance disc and axle sleeve, it is characterized in that between first stage impeller and second level impeller, being provided with the overcurrent connecting tube.
The utility model is owing to be provided with the overcurrent connecting tube between first stage impeller and second level impeller, current directly enter the next stage pump chamber, have reduced the loss of energy, have improved working efficiency.
Below in conjunction with accompanying drawing the utility model is further described;
Fig. 1 is the structural representation of multistage centrifugal draining pump.
Embodiment
As shown in Figure 1, the multistage centrifugal draining pump comprises inlet segment 1, lead justice 2, stage casing 3, water exit end 4, first stage impeller 5, second level impeller 6, balance set 7, balance plate 8, tail-hood 9, filler 10, Balance disc 11, Gland 12, water retaining ring 13, bearing 14, chopped-off head seal ring 15, second level seal ring 16, axle 18 and axle sleeve 19, by inlet segment 1, lead justice 2, water exit end 4 and first stage impeller 5 constitute standing part, the suction port of inlet segment 1 is provided with in horizontal direction, the outlet of water exit end 4 vertically upward, by axle 18, first stage impeller 5, second level impeller 6, Balance disc 11 and axle sleeve 19 constitute rotating part, between first stage impeller 5 and second level impeller 6, be provided with overcurrent connecting tube 20, whole rotating part is by bearing 14 supportings at two ends, relies on chopped-off head seal ring 15 between the standing part of pump and the rotating part, second level seal ring 16.
Claims (1)
1. multistage centrifugal draining pump, it comprises inlet segment, lead justice, stage casing, water exit end, first stage impeller, second level impeller, balance set, balance plate, tail-hood, filler, Balance disc, Gland, water retaining ring, bearing, chopped-off head seal ring, second level seal ring, axle and axle sleeve, by inlet segment, lead justice, water exit end and first order impeller and constitute standing part, constitute rotating part by axle, first stage impeller, second level impeller, Balance disc and axle sleeve, it is characterized in that between first stage impeller and second level impeller, being provided with the overcurrent connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200867691U CN202056060U (en) | 2011-03-29 | 2011-03-29 | Multistage centrifugal draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200867691U CN202056060U (en) | 2011-03-29 | 2011-03-29 | Multistage centrifugal draining pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056060U true CN202056060U (en) | 2011-11-30 |
Family
ID=45016031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200867691U Expired - Fee Related CN202056060U (en) | 2011-03-29 | 2011-03-29 | Multistage centrifugal draining pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762675A (en) * | 2015-11-23 | 2017-05-31 | 上海连成（集团）有限公司 | Multistage pump |
-
2011
- 2011-03-29 CN CN2011200867691U patent/CN202056060U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762675A (en) * | 2015-11-23 | 2017-05-31 | 上海连成（集团）有限公司 | Multistage 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: 20111130 Termination date: 20140329 |