CN203476790U - Stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting - Google Patents
Stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting Download PDFInfo
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- CN203476790U CN203476790U CN201320534959.4U CN201320534959U CN203476790U CN 203476790 U CN203476790 U CN 203476790U CN 201320534959 U CN201320534959 U CN 201320534959U CN 203476790 U CN203476790 U CN 203476790U
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- Prior art keywords
- centrifugal pump
- stainless steel
- pump impeller
- suction centrifugal
- mould material
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Abstract
The utility model discloses a stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting. The impeller comprises a hub, front cover plates, rear cover plates, and a plurality of vanes. The rear cover plates made of medium-temperature mould material are directly formed on two sides of the hub made of medium-temperature mould material, by means of investment casting. The vanes made of medium-temperature mould material are directly formed on the rear cover plates by means of investment casting. The front cover plates made of medium-temperature mould material are directly formed on the vanes by means of investment casting. The single-suction centrifugal pump impeller is formed. The stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting is corrosion resistant and compact in structure with smooth flow surface; usability of a centrifugal pump is improved greatly, and energy consumption is reduced greatly.
Description
Technical field
The utility model relates to a kind of impeller, particularly a kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller.
Background technique
Along with the development of economic society, stainless steel impeller, in field extensive uses such as building high-floor feedwater, industrial hot and cold periodical feeding, domestic water, chemical industry, has the very important market share.At present, the structural type of single-suction centrifugal pump impeller has unshrouded impeller, half-opened impeller and double shrouded wheel, wherein the widest with the application area of double shrouded wheel and quantity is maximum.The traditional manufacturing technique of this impeller is sand casting process, and it is more that the yield rate of impeller is low, impeller wetted surfaces is second-rate, the processing of foundry goods and check expend man-hour.
In order to improve performance and the quality of product of impeller, novel impeller is warm mould material manufacture wax-pattern in adopting, and full form casting process is produced stainless steel impeller.This blade wheel structure is compact, water passage surface is bright and clean, corrosion-resistant, long service life.
Model utility content
The problems such as the technical problems to be solved in the utility model is that blade wheel structure is unreasonable, rough, and impeller is perishable, thus a kind of novel single-suction centrifugal pump impeller is provided.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller, described impeller comprises wheel hub, front shroud, back shroud and some blades, it is characterized in that: described by the back shroud made of warm mould material by investment casting process direct forming by the warm mould material wheel hub both sides of making, described by some blade pass of making of warm mould material cross investment casting process direct forming on back shroud, described by the front shroud made of warm mould material by investment casting process direct forming, on blade, form single-suction centrifugal pump impeller.
In a preferred embodiment of the present utility model, described hub thickness is 5～8mm.
In a preferred embodiment of the present utility model, the thickness of described front shroud and back shroud is 2～5mm.
In a preferred embodiment of the present utility model, 5～8 pieces of blades of one-sided distribution of described impeller, the thickness of described blade is 1.5～5mm, the cornerite of described blade is 90 °～160 °.
In a preferred embodiment of the present utility model, described wheel hub, front shroud, back shroud and some blades all respectively in independence or composite dies adopt warm mould material make the casting wax-pattern that forms an integral wheel.
In a preferred embodiment of the present utility model, described casting wax-pattern is made into stainless steel impeller by investment casting process.
By technique scheme, the beneficial effects of the utility model are:
The utility model blade wheel structure is compact, corrosion-resistant, wetted surfaces is smooth, greatly improved the usability of centrifugal pump, and greatly reduces energy consumption.
In addition, the utility model impeller weight is light, long service life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.Accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, is not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model sectional view;
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller that the utility model provides, mainly comprises wheel hub 100, back shroud 200, front shroud 300 and some blades 400.
Wheel hub 100, by warm mould material make, wall thickness is 5～8mm, it is for being connected with the pump shaft of single-suction centrifugal pump.
Back shroud 200, by warm mould material make, and by investment casting process direct forming in wheel hub 100 both sides.
Due to back shroud 200 be direct forming in wheel hub 100 both sides, do not need welding, its wall thickness is only 2～5mm, than the back shroud wall thickness of common impeller, reduces 1/3～1/2.
Some blades 400, are all identical blade 400, by warm mould material make, and by investment casting process direct forming on back shroud 200.
Due to blade 400 be direct forming on back shroud 200, and do not need welding, its wall thickness is 1.5～5mm.
Blade 400 is one-sided is to adopt 3～8 pieces of uniform being formed on back shroud 200, and its cornerite is 90 °～160 °
Front shroud 300, by warm mould material make, and by investment casting process direct forming on blade 400.
Due to front shroud 300 be direct forming on blade 400, do not need welding, its wall thickness is only 2～5mm, than the front shroud wall thickness of common impeller, reduces 1/3～1/2.
The wheel hub 100 that the utility model provides, front shroud 300, back shroud 200 and some blades 400, before making, are all completed by independence or composite dies respectively.
The thickness of the wheel hub 100 that the utility model is selected, back shroud 200, front shroud 300 and blade 400 can also be determined according to the concrete size of blade wheel structure, when if the size of blade wheel structure is larger, the thickness of wheel hub 100, back shroud 200, front shroud 300 and blade 400 also can be according to the corresponding increase of investment casting process.
Because wheel hub 100, back shroud 200, front shroud 300 and blade 400 are all made by middle temperature mould material, and be formed on each corresponding parts by investment casting process, so the wax-pattern size of integral wheel is very accurate, and investment casting process casting has reduced size error and conventional multiple casting defect.
Impeller is to adopt stainless steel casting in addition, thereby the utlity model has the advantages such as corrosion-resistant, long service life.
The making step of impeller is as follows:
First utilize mould to be made into successively the structure member of wheel hub 100, back shroud 200, front shroud 300 and some blades 400, then first back shroud 200 is fixedly formed in order to wheel hub 100 both sides, again blade 400 is evenly formed in to back shroud 200 surroundings, finally again front shroud 300 is formed on blade, thereby be assembled into a complete impeller wax-pattern, finally, by warm wax-pattern impeller surface in Ludox or ethyl silicate coating, by investment casting process, melt mould case.
Above declarative description basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. warm wax-pattern stainless steel single-suction centrifugal pump impeller in a kind, described impeller comprises wheel hub, front shroud, back shroud and some blades, it is characterized in that: described by the back shroud made of warm mould material by investment casting process direct forming by the warm mould material wheel hub both sides of making, described by some blade pass of making of warm mould material cross investment casting process direct forming on back shroud, described by the front shroud made of warm mould material by investment casting process direct forming, on blade, form single-suction centrifugal pump impeller.
2. a kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller according to claim 1, is characterized in that: described hub thickness is 5～8mm.
3. a kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller according to claim 1, is characterized in that: the thickness of described front shroud and back shroud is 2～5mm.
4. a kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller according to claim 1, is characterized in that: 5～8 pieces of blades of one-sided distribution of described impeller, and the thickness of described blade is 1.5～5mm, the cornerite of described blade is 90 °～160 °.
5. a kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller according to claim 1, is characterized in that: described wheel hub, front shroud, back shroud and some blades all respectively in independence or composite dies adopt warm mould material make the casting wax-pattern that forms an integral wheel.
6. a kind of middle temperature wax-pattern stainless steel single-suction centrifugal pump impeller according to claim 5, is characterized in that: described casting wax-pattern is made into stainless steel impeller by investment casting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534959.4U CN203476790U (en) | 2013-08-29 | 2013-08-29 | Stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534959.4U CN203476790U (en) | 2013-08-29 | 2013-08-29 | Stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476790U true CN203476790U (en) | 2014-03-12 |
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ID=50225128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534959.4U Expired - Fee Related CN203476790U (en) | 2013-08-29 | 2013-08-29 | Stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting |
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| CN (1) | CN203476790U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050731A (en) * | 2016-07-06 | 2016-10-26 | 苏州台合达环保设备有限公司 | Impeller |
| CN107008854A (en) * | 2017-05-05 | 2017-08-04 | 凯特工业科技（惠州）有限公司 | A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern |
| CN109986025A (en) * | 2017-12-29 | 2019-07-09 | 宁波鑫象不锈钢制品有限公司 | Stainless steel water pump vane wheel full form casting process |
-
2013
- 2013-08-29 CN CN201320534959.4U patent/CN203476790U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050731A (en) * | 2016-07-06 | 2016-10-26 | 苏州台合达环保设备有限公司 | Impeller |
| CN107008854A (en) * | 2017-05-05 | 2017-08-04 | 凯特工业科技（惠州）有限公司 | A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern |
| CN109986025A (en) * | 2017-12-29 | 2019-07-09 | 宁波鑫象不锈钢制品有限公司 | Stainless steel water pump vane wheel full form casting process |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140829 |
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| EXPY | Termination of patent right or utility model |