CN202360463U - Split volute and water pump with the volute - Google Patents
Split volute and water pump with the volute Download PDFInfo
- Publication number
- CN202360463U CN202360463U CN2011204501862U CN201120450186U CN202360463U CN 202360463 U CN202360463 U CN 202360463U CN 2011204501862 U CN2011204501862 U CN 2011204501862U CN 201120450186 U CN201120450186 U CN 201120450186U CN 202360463 U CN202360463 U CN 202360463U
- Authority
- CN
- China
- Prior art keywords
- volute
- water pump
- split
- utility
- model
- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
Abstract
The utility model relates to a split volute and water pump with the volute. The split volute comprises a volute body, wherein the volute body is of a symmetry split die-casting structure. The water pump with the volute comprises a volute provided with the volute body, wherein the volute body is of a symmetry split die-casting structure. Compared with the prior art, as the volute adopts the symmetry split die-casting structure; the rejection rate of castings is reduced; the production cycle is shortened; the size precision and the surface smoothness of the volute are improved; further, the efficiency of the water pump is improved, and the expected purpose is achieved; and the evenness of the flow speed and less hydraulic loss of the water pump are realized by controlling the area of each cross section.
Description
Technical field
The utility model relates to the hydraulics field, relates in particular to a kind of volute and has the water pump of this volute.
Background technique
Centrifugal pump is a kind of ancient and use universal machine extremely widely.Centrifugal pump is from its principle, structure and ride quality aspect, than the pump of other type many outstanding characteristics arranged, and can in the very wide scope of flow and pressure, make, so purposes is very widely arranged.Centrifugal pump mainly contains two flow passage components of impeller and volute to be formed, and volute is the equipment of pure power consumption, and hydraulic loss can reach total hydraulic loss half the of pump; Therefore volute design, the quality of making; For improving pump performance, particularly its efficiency index concerns very important.
Itself just the signifying certain loss of volute and must not give total energy that impeller produced with any increment.Therefore, carrying out pump housing design, when making, it is essential and to adopt every measure to make the loss in the volute be reduced to minimum value.As everyone knows, the flow condition in the pump is depended in the hydraulic performance of pump, especially hydraulic loss to a great extent, and flow condition is then closely related with the physical dimension and the shape of flow passage components.
After current leave impeller, only do not receiving under the free-flow condition of moment of face, just can avoid in volute, producing whirlpool and bump, hydraulic loss this moment is reduced to minimum.Theory analysis and experimental research all show; It is the speed square conservation that flows with necessary condition fully that current are realized free-pouring in volute, and promptly volute inner fluid particle is a constant the circumferential components and the amassing of this distance of putting the pump shaft heart of the absolute velocity of any place.A certain section is requiring through flow one regularly, because the speed square is a constant on the section, the geometrical shape of section just can not be arbitrarily, and each geometric element of section just must satisfy some specific relation.The production characteristics of Centrifugal water pump are that its runner working surface is a spatial warping face; Nowadays its design process has reached the desired desired result of fluid mechanics by means of computer, thereby accuracy of manufacturing and the cost problem brought thereof just become the key factor that influences the water pump development level.
Volute casing that volute water-supplying chamber is irregular by section configuration substantially and the runner center line is crooked and section are diffuser pipe two-part of expanding shape and form.After liquid flows out from impeller, by water-supplying chamber's afflux, diffusion and with the possible hydraulic loss of minimum with kinetic energy be converted into pressure can, be transported to Drainage tank or next stage impeller simultaneously.Therefore, the quality of water-supplying chamber's hydraulic performance is with the technological sophistication that determines pump to a great extent.
The volute and the impeller channel rough surface that come out based on the sand casting process manufacturing of present China; Geometrical shape is unstable, must increase the volute casing runner along the journey fricting resistance loss with owing to the reason of boundary layer separation or secondary flow produces various local resistance losses.If repair filers' preface through manual work, just destroyed the surface layer that certain degree of hardness is arranged that the metal natural coagulation forms, reduced the anti-cavitation ability of runner, influence working life.Be head it off, must improve water passage surface degree of finish, reduce the filing amount, save the casting plane of runner from damage, improve technology.
Summary of the invention
In view of this, the utility model technical problem to be solved is: provide a kind of making method the simple and better split type volute of performance.
In order to achieve the above object, the utility model adopts following technological scheme to realize:
A kind of split type volute comprises the volute body, and wherein, said volute body is symmetrical subdivision die casting formula structure.
As preferably, the volute body of said symmetrical subdivision die casting formula structure comprises left volute and right volute.
The utility model also provides a kind of efficient the higher water pump with this volute, and it adopts following technological scheme to realize:
A kind of water pump comprises the volute with volute body, and wherein, said volute body is symmetrical subdivision die casting formula structure.
Can know that by technique scheme the beneficial effect of the utility model is:
Compare existing technology, the utility model has reduced the casting wasted product rate through volute being adopted symmetrical subdivision die casting formula structure; Dwindle the manufacture cycle, improved dimensional accuracy, the surface finishment of volute, and then improved the efficient of water pump; Reached intended purposes; Through controlling the area in each cross section, realize the even of flow velocity, less water pump hydraulic loss.
Description of drawings
Fig. 1 is the structural representation of the left volute of the utility model.
Fig. 2 is the structural representation of the right volute of the utility model.
Fig. 3 is the structural representation of the water pump of the utility model.
Embodiment
In order to make those skilled in the art can further understand the characteristic and the technology contents of the utility model, see also following detailed description and accompanying drawing about the utility model.
See also Fig. 1 to shown in Figure 3, the utility model provides a kind of split type volute, comprises the volute body, and wherein, said volute body is symmetrical subdivision die casting formula structure.Wherein, the volute body of said symmetrical subdivision die casting formula structure comprises left volute 3 and right volute 7.
The utility model also provides a kind of water pump with this split type volute, and it adopts following technological scheme to realize:
A kind of water pump comprises the volute with volute body, and wherein, said volute body is symmetrical subdivision die casting formula structure.
In particular, right volute 7 die casting respectively among the left side volute 3 of the water pump among Fig. 1 and Fig. 2.During work; Water pump is through axial water inlet water inlet on the right volute 7; See also Fig. 3, water pump transmission shaft 1 is by external motivational drive, and impeller 11 links together through key 9 and transmission shaft 1; The water that the rotation of impeller 7 gets into water intake gets rid of into left and right sides spiral case and docks formed water channel, again by the water outlet water outlet of water pump.
Volute adopts symmetrical subdivision die casting formula structure, and the angle between the volute sidewall equates, the volute space symmetry of impeller both sides, and the variation of all volute areas is even, and the connection between the cross section is level and smooth, and according to the method for section design, each cross section speed square equates; Impeller adopts antecurvature swept-back, and turbine adopts sculptured surface modeling, and the blade of water pump is optimized design, satisfies the requirement of energy-efficient water pump; The axial suction chamber of water pump suction chamber straight-tapered is optimized design to the structural parameter of suction chamber
As shown in Figure 3, left volute 3 is fixing through sewing up bolt 4 with right volute 7, and left volute is embedded in seal ring 10, and mechanical seal 12 is installed in the seat hole of left spiral case, and transmission shaft 1 passes the axis hole of mechanical seal 12, and impeller 11 is connected through key 9 with transmission shaft 1.
Left side spiral case 3 casts out respectively with right volute 7, through the Control Shaft section area, draws each section circle, is generated runner, runner and the impeller 11 row optimization of matching designs of water pump by free posing.
Requirement according to the design point operating mode of water pump is optimized design to the axial suction chamber of straight-tapered, the tapering of adjustment suction chamber, and tapering is adjusted into 12.5 °, satisfies the energy-efficient requirement of water pump.
The blade single face is arranged a side of impeller, adopts antecurvature sweepback form, and the form that blade pass is crossed sculptured surface modeling generates, and is optimized design, satisfies the requirement of energy-efficient water pump.
This delivery of pump is high, and production process is easy to mechanization and automation.Different according to the die casting machine type, but on average per hour 70～500 of die casting; Casting quality is high, and the foundry goods precision reaches IT11～IT13, and surface roughness reaches Ra 6.3～1.6 μ m, and general die castings can directly use without machining; Mechanical castings is good.It cools off in metal mold, crystallization under pressure again, and surface microstructure is tiny and fine and close, and its tensile strength improves 25%～30% than sand casting process.Foundry goods is complex-shaped, can directly cast out screw thread and profile of tooth.
After adopting symmetrical subdivision die casting formula volute, the quality of water pump volute foundry goods obviously improves, and geometrical shape accuracy and surface finishment have all improved a grade, and water pump quality integral body is improved.
But the preferable possible embodiments that the above is merely the utility model is not the claim in order to limitation the utility model, so the equivalent structure that all utilization the utility model specifications and accompanying drawing content are done changes, all in like manner is included in the scope of the utility model.
Claims (3)
1. a split type volute comprises the volute body, it is characterized in that, said volute body is symmetrical subdivision die casting formula structure.
2. split type volute as claimed in claim 1 is characterized in that, the volute body of said symmetrical subdivision die casting formula structure comprises left volute and right volute.
3. a water pump comprises volute, it is characterized in that, said volute adopts volute as claimed in claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204501862U CN202360463U (en) | 2011-11-15 | 2011-11-15 | Split volute and water pump with the volute |
| PCT/CN2012/084457 WO2013071847A1 (en) | 2011-11-15 | 2012-11-12 | Split volute and water pump with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204501862U CN202360463U (en) | 2011-11-15 | 2011-11-15 | Split volute and water pump with the volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360463U true CN202360463U (en) | 2012-08-01 |
Family
ID=46571653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204501862U Expired - Fee Related CN202360463U (en) | 2011-11-15 | 2011-11-15 | Split volute and water pump with the volute |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202360463U (en) |
| WO (1) | WO2013071847A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235053A (en) * | 2014-08-22 | 2014-12-24 | 中国北方发动机研究所 | High-efficiency and low-specific speed centrifugal water pump |
| US11835061B1 (en) | 2022-11-10 | 2023-12-05 | Industrial Flow Solutions Operating, Llc | Split volute for submersible pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273608A (en) * | 2021-12-20 | 2022-04-05 | 安徽莱恩电泵有限公司 | Process for producing pumps with different lifts by utilizing existing pump body mold |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB673812A (en) * | 1946-03-06 | 1952-06-11 | Alfred Buechi | Improvements in or relating to guiding arrangements for centrifugal blowers and pumps |
| JPS5870097A (en) * | 1981-10-23 | 1983-04-26 | Hitachi Ltd | Horizontally split type casing |
| JPS5954800A (en) * | 1982-09-22 | 1984-03-29 | Hitachi Ltd | Horizontally separated casing |
| IT232117Y1 (en) * | 1996-05-24 | 1999-09-10 | Fime Fab It Motor Elett | SCREW FOR THE SUCTION FAN INSTALLED ON THE SEALED COMBUSTION CHAMBER BOILERS |
| CN202360493U (en) * | 2011-12-03 | 2012-08-01 | 南京埃尔法电液技术有限公司 | Hydraulic system of electro-hydraulic servo bending machine |
-
2011
- 2011-11-15 CN CN2011204501862U patent/CN202360463U/en not_active Expired - Fee Related
-
2012
- 2012-11-12 WO PCT/CN2012/084457 patent/WO2013071847A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235053A (en) * | 2014-08-22 | 2014-12-24 | 中国北方发动机研究所 | High-efficiency and low-specific speed centrifugal water pump |
| US11835061B1 (en) | 2022-11-10 | 2023-12-05 | Industrial Flow Solutions Operating, Llc | Split volute for submersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013071847A1 (en) | 2013-05-23 |
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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: 20160325 Address after: 350016, building two, floor 18, Changan Road, 201-203 Fuzhou Road, Mawei District, Fujian province (FTA test area) Patentee after: Fujian Hao Yang Machinery Technology Co., Ltd. Address before: 350001 block A, Fu Palace garden, Gulou District, Fujian, Fuzhou 19B Patentee before: Huang Xiaodong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20201115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |