CN204900265U - Single -stage double suction split case pump - Google Patents
Single -stage double suction split case pump Download PDFInfo
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- CN204900265U CN204900265U CN201520482730.XU CN201520482730U CN204900265U CN 204900265 U CN204900265 U CN 204900265U CN 201520482730 U CN201520482730 U CN 201520482730U CN 204900265 U CN204900265 U CN 204900265U
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- pump
- axle
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- bearing
- axle sleeve
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Abstract
The utility model relates to a center is equipped with the axle in the pump structure, especially a single -stage double suction split case pump, the pump body, the pump body is central symmetry and controls the shape, and its top is equipped with the pump cover, and the center is equipped with the axle in the pump body, install bilateral symmetry's impeller on the pump body central line, the double suction sealing ring that the symmetry set up is installed with the pump body and pump cover clearance department to the impeller, the axle sleeve is installed to the epaxial symmetry in impeller both sides, it is fixed that the left side axle sleeve passes through the sleeve nut, the organic holding ring that seals of installation on the axle sleeve of impeller both sides, the left end of axle is provided with bearing body second, and the two constitutes to rotate through the bearing connects, bearing body first is installed to the right part of axle, and the two constitutes to rotate through the bearing connects, the utility model discloses among the technical scheme, its advantage is that the operation is stable, has lightened the influence of medium to the mechanical seal effort greatly, has lengthened the machine and has sealed life, and the pump body adopts integral casting rigidity good in addition, and middle support structure binds steadily.
Description
Technical field
The utility model relates to a kind of pump structure, particularly a kind of single-stage double-suction middle-opening centrifugal pump.
Background technique
Middle-opening pump is a kind of a large amount of wide workalike equipment, and it is widely used in oil, chemical industry, electric power metallurgy, mine, selects ship, light industry, agricultural, civilian and national defence all departments, occupies an important position in national economy.Middle-opening pump (middle open type circulation) is referred to as one-stage double-sucking centrifugal pump again, and its major character is that the flow of fed sheet of a media is large, the working principle that lift middle-opening pump runs: impeller is arranged in pump case, and is fastened on pump shaft, and pump shaft is moved by motor straight tape splicing.Pump case central authorities have a liquid suction to be connected with suction pipe.Liquid enters in pump through bottom valve and suction pipe.Liquid outlet on pump case is connected with discharge tube.When rotating speed one timing of pump, its pressure head, flow are relevant with impeller diameter.But currently available technology also exists poor, the structural difference of hydraulic performance, life-span low shortcoming.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of easy installation and removal, firm in structure, durable in use, structural good single-stage double-suction middle-opening centrifugal pump.
For solving the problems of the technologies described above, the utility model realizes as follows: design a kind of single-stage double-suction middle-opening centrifugal pump, and it is sealed positioning ring, the pump housing, machine envelope, bearing support first and bearing formed by bearing support second, axle, machine sealed cover, sleeve nut, axle sleeve, pump cover, double suction seal ring, impeller, machine; The pump housing is centrosymmetric left and right shape, and its upper part is provided with pump cover, and in the pump housing, center is provided with axle; Pump housing center line is provided with symmetrical impeller; Impeller and the pump housing and pump cover gap location are provided with symmetrically arranged double suction seal ring; Impeller two side shaft is symmetrically installed with axle sleeve; Left side axle sleeve is fixed by sleeve nut; Organic envelope positioning ring installed by impeller both sides axle sleeve; The left end of axle is provided with bearing support second, and the two is rotationally connected by bearing formation; The right part of axle is provided with bearing support first, and the two is rotationally connected by bearing formation.
Further, described axle sleeve is also provided with packing ring.
Further, the right half of described axle is also provided with the machine be fixedly connected with the pump housing with pump cover seal.
Further, conveniently connect prime mover, on the right side of described axle, afterbody is also connected with coupling.
Good effect of the present utility model: in technical solutions of the utility model, its advantage considers that pump media flow direction is for enter vertically downward, and substantially horizontal goes out; Bourn acting force, to the tremendous influence of pump shaft, has set up pump shaft overcoat protective gear in the pump housing; The subduction power of medium is transferred on the pump housing, thus ensure that the stable of pump, significantly reduce the impact of medium on mechanical seal active force, extend machine and seal working life.The improvement of this structure has stepped a larger step in like product at home.The pump housing adopts integrated type casting good rigidly in addition, intermediate support structure connective stability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, not paying under the laborious prerequisite of creation, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cross section structure schematic diagram of the utility model embodiment.
Fig. 2 is that the A of the utility model embodiment is to structural representation.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further details.At this, exemplary embodiment of the present utility model and illustrating for explaining the utility model, but not as to restriction of the present utility model.
As shown in the figure, single-stage double-suction middle-opening centrifugal pump described in the utility model, it is sealed positioning ring 9, the pump housing 10, machine envelope 12, bearing support first 13 and bearing 14 formed by bearing support second 1, axle 2, machine sealed cover 3, sleeve nut 4, axle sleeve 5, pump cover 6, double suction seal ring 7, impeller 8, machine; The pump housing 10 is centrosymmetric left and right shape, and its upper part is provided with pump cover 6, and in the pump housing 10, center is provided with axle 2; The pump housing 10 center line is provided with symmetrical impeller 8; Impeller 8 is provided with symmetrically arranged double suction seal ring 7 with the pump housing 10 and pump cover 6 gap location; Impeller 8 liang of side shafts 2 are symmetrically installed with axle sleeve 5; Left side axle sleeve 5 is fixed by sleeve nut 4; Organic envelope positioning ring 9 installed by impeller 8 both sides axle sleeve 5; The left end of axle 2 is provided with bearing support second 1, and the two is rotationally connected by bearing 14 formation; The right part of axle 2 is provided with bearing support first 13, and the two is rotationally connected by bearing 14 formation.
Further, described axle sleeve 5 is also provided with packing ring 11.
Further, the right half of described axle 2 is also provided with the machine be fixedly connected with the pump housing 10 with pump cover 6 seal.
Further, conveniently connect prime mover, on the right side of described axle 2, afterbody is also connected with coupling 15.
Before pump startup, in pump case, fill the liquid be transferred; After startup, impeller 8 drives high speed rotating by axle 2, and interlobate liquid also must along with rotation.Under the influence of centrifugal force, liquid is thrown to outer rim from impeller central and is obtained energy, so that leaving impeller outer edge enters volute pump case at a high speed.In spiral case, liquid slows down due to the expansion gradually of runner, is static energy again by part kinetic energy, finally flows into discharge conduit with higher pressure, delivers to and need place.When liquid flows to outer rim by impeller 8 center, define certain vacuum at impeller 8 center, the pressure due to storage tank ullage is greater than the pressure at pump intake place, liquid is just pressed in impeller 8 continuously, visible, as long as impeller constantly rotates, liquid just can constantly be inhaled into and discharge.
Claims (4)
1. a single-stage double-suction middle-opening centrifugal pump, is characterized in that: it is sealed positioning ring (9), the pump housing (10), machine envelope (12), bearing support first (13) and bearing (14) formed by bearing support second (1), axle (2), machine sealed cover (3), sleeve nut (4), axle sleeve (5), pump cover (6), double suction seal ring (7), impeller (8), machine; The pump housing (10) is centrosymmetric left and right shape, and its upper part is provided with pump cover (6), and the pump housing (10) interior center is provided with axle (2); The pump housing (10) center line is provided with symmetrical impeller (8); Impeller (8) is provided with symmetrically arranged double suction seal ring (7) with the pump housing (10) and pump cover (6) gap location; Impeller (8) two side shaft (2) is symmetrically installed with axle sleeve (5); Left side axle sleeve (5) is fixed by sleeve nut (4); Impeller (8) both sides axle sleeve (5) are upper installs organic envelope positioning ring (9); The left end of axle (2) is provided with bearing support second (1), and the two is rotationally connected by bearing (14) formation; The right part of axle (2) is provided with bearing support first (13), and the two is rotationally connected by bearing (14) formation.
2. according to single-stage double-suction middle-opening centrifugal pump described in claim 1, it is characterized in that: described axle sleeve (5) is also provided with packing ring (11).
3. according to single-stage double-suction middle-opening centrifugal pump described in claim 1, it is characterized in that: the right half of described axle (2) is also provided with the machine be fixedly connected with the pump housing (10) with pump cover (6) and seals.
4. according to single-stage double-suction middle-opening centrifugal pump described in claim 1, it is characterized in that: described axle (2) right side afterbody is also connected with coupling (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482730.XU CN204900265U (en) | 2015-07-07 | 2015-07-07 | Single -stage double suction split case pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482730.XU CN204900265U (en) | 2015-07-07 | 2015-07-07 | Single -stage double suction split case pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900265U true CN204900265U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520482730.XU Active CN204900265U (en) | 2015-07-07 | 2015-07-07 | Single -stage double suction split case pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN204900265U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620534A (en) * | 2018-05-21 | 2018-10-09 | 广西科技大学 | Double suction type centrifugal pump body casting method and the centrifugal pump of casting |
| CN108691775A (en) * | 2018-05-24 | 2018-10-23 | 陕西科技大学 | A kind of single-stage double-entry centrifugal slag flushing pump |
| CN108757475A (en) * | 2018-05-24 | 2018-11-06 | 陕西科技大学 | A kind of large flow single-stage double-suction centrifugal pump slag flushing pump |
| CN108757572A (en) * | 2018-05-24 | 2018-11-06 | 陕西科技大学 | A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump |
| CN108757476A (en) * | 2018-05-24 | 2018-11-06 | 陕西科技大学 | A kind of single-stage double-entry centrifugal ash water pump |
| CN111188774A (en) * | 2020-01-06 | 2020-05-22 | 合肥皖化电泵有限公司 | High pressure resistant circulating pump structure |
-
2015
- 2015-07-07 CN CN201520482730.XU patent/CN204900265U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620534A (en) * | 2018-05-21 | 2018-10-09 | 广西科技大学 | Double suction type centrifugal pump body casting method and the centrifugal pump of casting |
| CN108691775A (en) * | 2018-05-24 | 2018-10-23 | 陕西科技大学 | A kind of single-stage double-entry centrifugal slag flushing pump |
| CN108757475A (en) * | 2018-05-24 | 2018-11-06 | 陕西科技大学 | A kind of large flow single-stage double-suction centrifugal pump slag flushing pump |
| CN108757572A (en) * | 2018-05-24 | 2018-11-06 | 陕西科技大学 | A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump |
| CN108757476A (en) * | 2018-05-24 | 2018-11-06 | 陕西科技大学 | A kind of single-stage double-entry centrifugal ash water pump |
| CN111188774A (en) * | 2020-01-06 | 2020-05-22 | 合肥皖化电泵有限公司 | High pressure resistant circulating pump structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160413 Address after: 635000 Sichuan province Dazhou Economic Development Zone Bin Lang Township papaya shop 10 sets Patentee after: XINDA PUMP & VALVE CO., LTD. Address before: 635022 natural gas energy chemical industry zone, Sichuan, Dazhou Patentee before: Sichuan Xinda Pump Industry Co., Ltd. |