CN205654548U - High exchange formula multistage centrifugal pump of stator - Google Patents
High exchange formula multistage centrifugal pump of stator Download PDFInfo
- Publication number
- CN205654548U CN205654548U CN201620519206.XU CN201620519206U CN205654548U CN 205654548 U CN205654548 U CN 205654548U CN 201620519206 U CN201620519206 U CN 201620519206U CN 205654548 U CN205654548 U CN 205654548U
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- pump
- stator
- conservancy diversion
- sealing ring
- water conservancy
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Abstract
The utility model discloses a high exchange formula multistage centrifugal pump of stator, including pivot (8), suction casing (11), pump middle section (1), stator (3), discharge casing (12), bearing body, impeller (17) neck bush (2) are equipped with between pump middle section and the stator water conservancy diversion sealing ring (4) are equipped with in the hole department of pump middle section and neck bush. The stator department of being close to of water conservancy diversion sealing ring has corresponding smooth fillet (7) of passing through with impeller eye department. Adorn in the neck bush stator after reforming transform and can be under the unchangeable condition of the pump middle section of former centrifugal pump mounting dimension cooperate with the pump middle section, for fluid after the stator transformation carries out the transition to the next stage better, more uniformly, make efficiency of pump loss minimum, this water conservancy diversion sealing ring forms sealed pair of friction with the impeller choma department of centrifugal pump, can play the refluence of effective prevention next stage pressurization medium again and return supreme one -level, has improved the stability of pump operation.
Description
Technical field
This utility model relates to a kind of pump valve equipment, is specifically related to a kind of centrifugal multistage pump multiple centrifugal pump.
Background technology
The water injection technology in some oil fields changes greatly at present, and first wife overlaps output pressure and the stream of water injecting pump
Amount overdose space is very big, as used outlet regulating valve excessively to regulate, pump efficiency can be caused too low, its
Run also unstable, thus result in energy dissipation, cost for oil production can be had a strong impact on.For meet from
Heart water injecting pump fall holds transformation, in line with principle of simplifying administration and practicing economy, utilizes water-injection station original annotation water pump parts
And on the basis of plumbing arrangements, it is updated transformation.For meeting its basis and peace in transformation process
In the case of dress size constancy.A kind of stator adapting to centrifugal multistage pump multiple centrifugal pump technological transformation need to be designed
Device, this remodeling method can significantly improve the stability that water injecting pump runs, and can save again a large amount of
Capital expenditure.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and provides a kind of efficient, operation
Stable stator height interchangeable centrifugal multistage pump multiple centrifugal pump.
This utility model purpose realizes by following technical solution: stator height interchangeable multistage from
Heart pump, including rotating shaft, suction casing, pump stage casing, stator, Spit Section, bearing body, impeller,
Equipped with neck bush between described pump stage casing and stator, at described pump stage casing and the endoporus of neck bush
Place is equipped with water conservancy diversion sealing ring.Have at the close stator of described water conservancy diversion sealing ring with impeller eye at
The corresponding fillet smoothly transitted, described water conservancy diversion sealing ring is contained on pump stage casing by screw.
After using this utility model structure, being loaded on improved stator in neck bush can be former centrifugal
Match with pump stage casing in the case of the pump stage casing installation dimension of pump is constant, flow after transforming for stator
Body more preferably, is more uniformly transitioned into next stage, makes efficiency of pump loss reduction；This water conservancy diversion sealing ring
Friction sealed pair together with being formed at the impeller port ring of centrifugal pump, plays again and effectively stops next stage
High pressure sealing medium flows backwards and is back to upper level, improves the stability of pump operation.
Accompanying drawing explanation
With embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of stator component of the present utility model (for wherein one section).
Fig. 2 is the structural representation of this utility model stator height interchangeable centrifugal multistage pump multiple centrifugal pump.
Detailed description of the invention
Understand with reference to Fig. 1, Fig. 2, this utility model stator height interchangeable centrifugal multistage pump multiple centrifugal pump, bag
Include rotating shaft 8, suction casing 11, pump stage casing 1, stator 3, Spit Section 12, bearing body (containing a left side
Bearing body 9, right bearing body 16) and bearing bracket stand (containing left bearing frame 10, right bearing frame 15),
Impeller 17, and turnbuckle 13, tightening nut 14, at described pump stage casing 1 and stator 3
Between equipped with neck bush 2, close equipped with water conservancy diversion at the endoporus of described pump stage casing 1 and neck bush 2
Seal ring 4.At the close stator of described water conservancy diversion sealing ring 4, (i.e. the left side shown in Fig. 1) has
The fillet 7 that smoothly transit corresponding with at impeller eye is (for guaranteeing that stator carries on the back runner flow-passing surface
It is transitioned into impeller eye equably, makes upper level liquid medium by leading under impeller high velocity effect
Leaf and water conservancy diversion sealing ring flow velocity are transitioned into next stage impeller eye equably, hence it is evident that improve pump efficiency
Rate), described water conservancy diversion sealing ring 4 is contained on pump stage casing 1 by screw 5.
As it is shown in figure 1, it is described pump stage casing 1 (Fig. 1 show wherein a section), stator 3, interior
Lining 2, water conservancy diversion sealing ring 4, screw 5 constitute the stator component of this centrifugal multistage pump multiple centrifugal pump.
Described water conservancy diversion sealing ring 4 and sealing surface 6 thereof are straight together with being formed at next stage impeller port ring
Footpath is the friction sealed pair of 0.45mm～0.60mm, can effectively stop next stage high pressure sealing to be situated between
Matter flows backwards and is back to upper level.
Claims (2)
1. stator height interchangeable centrifugal multistage pump multiple centrifugal pump, including rotating shaft (8), suction casing (11), pump
Stage casing (1), stator (3), Spit Section (12), bearing body, impeller (17), its feature exists
In: equipped with neck bush (2) between described pump stage casing (1) and stator (3), at described pump
Equipped with water conservancy diversion sealing ring (4) at the endoporus of stage casing (1) and neck bush (2).
2. stator height interchangeable centrifugal multistage pump multiple centrifugal pump as claimed in claim 1, it is characterised in that:
Have corresponding with at impeller eye smooth at the close stator of described water conservancy diversion sealing ring (4)
The fillet (7) of transition, described water conservancy diversion sealing ring (4) is contained in pump stage casing (1) by screw (5)
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620519206.XU CN205654548U (en) | 2016-05-25 | 2016-05-25 | High exchange formula multistage centrifugal pump of stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620519206.XU CN205654548U (en) | 2016-05-25 | 2016-05-25 | High exchange formula multistage centrifugal pump of stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205654548U true CN205654548U (en) | 2016-10-19 |
Family
ID=57405618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620519206.XU Active CN205654548U (en) | 2016-05-25 | 2016-05-25 | High exchange formula multistage centrifugal pump of stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205654548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071594A (en) * | 2017-07-28 | 2018-05-25 | 林佳 | The steady low formula boiler feed pump that shakes of water conservancy diversion |
-
2016
- 2016-05-25 CN CN201620519206.XU patent/CN205654548U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071594A (en) * | 2017-07-28 | 2018-05-25 | 林佳 | The steady low formula boiler feed pump that shakes of water conservancy diversion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |