CN2903491Y - Plastic lining centrifugal pump - Google Patents
Plastic lining centrifugal pump Download PDFInfo
- Publication number
- CN2903491Y CN2903491Y CN 200620070151 CN200620070151U CN2903491Y CN 2903491 Y CN2903491 Y CN 2903491Y CN 200620070151 CN200620070151 CN 200620070151 CN 200620070151 U CN200620070151 U CN 200620070151U CN 2903491 Y CN2903491 Y CN 2903491Y
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- CN
- China
- Prior art keywords
- plastic
- centrifugal pump
- lining
- lined
- pump
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- 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 - Lifetime
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Abstract
The utility model relates to the modification about the high volume plastic-lined centrifugal pump, characterized in that the metal volute housing of the centrifugal pump is separated from the outlet section of the centrifugal pump, and the centrifugal pump and the outlet section are assembled and split jointed after respectively being plastic-lined, thereby overcoming the shortcomings of being hard to guarantee the liner quality and having low survival rate with long compression stroke of the conjoined pump. The structure is beneficial to improve degree of compactness of the plastic-lined layer and the rate of finished products, also guarantee the compression molding quality of the volute housing and the plastic-lined survival rate. The utility model is not only applicable to the high volume centrifugal pump lined plastic, but also applicable to the common size centrifugal pump lined plastic, particularly to the plastic liner which has corrosion resistant, better abradability, and worse molten flowability.
Description
Technical field
Model utility relates to a kind of plastic-lining centrifugal pump, relates in particular to big flow plastic-lining centrifugal pump.
Background technique
The centrifugal pump that the corrosion resistant occasion is used, a kind of easier mode is at the overcurrent position of centrifugal pump lining one plastic layer.Mould with corrosion resistant plastics ultra-high molecular weight polyethylene for example yet be fit to lining, melt fluidity is very poor usually, though molten plastic is applied with pressure during lining, its flowability is still relatively poor.And big flow centrifugal pump for example flow at 1000m
3More than/the h, centrifugal pump volute basic circle size is bigger, the volute exit cone is longer, the liner compression mold stroke is longer, usually mode lining quality is not ideal enough, and especially pump discharge diffusing tube lining is moulded, and is easy to generate defectives such as loose, bubble, cracking, not only to be moulded motility rate lower for lining, but also the influence lining is moulded giving full play to of superiority.
Summary of the invention
The model utility purpose is to overcome the deficiency of above-mentioned prior art, provides a kind of big flow still can effectively guarantee to serve as a contrast the polymer amount, and lining is moulded the high plastic-lining centrifugal pump of motility rate.
The model utility purpose realizes that main the improvement is that centrifugal pump volute and outlet section are separated into disome, splices and combines after lining is moulded respectively again, thereby has effectively reduced the compression moulding stroke, guarantees to serve as a contrast polymer amount and survival rate.Specifically, the model utility plastic-lining centrifugal pump comprises the metal pump housing and the plastic lining layer be made up of front pump cover, volute, rear pump cover amalgamation, it is characterized in that said centrifugal pump metal volute separates with the pump discharge section, and it is combined and spliced that lining is moulded the back respectively.
For helping the splicing of pump discharge section and volute, a kind of better is to make on the volute to keep a short outlet linkage section (be non-connect root from volute disconnect), like this pump discharge section can make things convenient for volute on reservation paragraph splice.Said splicing can be that cover is inserted splicing, is threaded, and flange connection etc., model utility better adopts the flange splicing, promptly on volute reservation paragraph and separate pump outlet section, is provided with the adpting flange limit, by flange butt joint bolt.
The model utility plastic-lining centrifugal pump, owing to adopt outlet section and volute separation structure with the lining metal pump housing, thereby it is long to have overcome pump integrating outlet compression moulding stroke, be difficult to guarantee lining quality and the low deficiency of survival rate, short outlet linkage section compression moulding stroke is short on the volute, help the raising of plastic lining layer consistency and yield rate, can guarantee that volute compression moulding quality and lining are moulded motility rate.Model utility not only can be used for big flow centrifugal pump lining moulds, and can be used for common specification centrifugal pump lining and mould, and especially is fit to lining corrosion resistant, wear-resisting property is better, melt fluidity is relatively poor plastic lining.
Below in conjunction with an indefiniteness embodiment, further specify model utility.
Description of drawings
Accompanying drawing is a model utility example structure schematic representation.
Embodiment
Embodiment: referring to accompanying drawing, the model utility plastic-lining centrifugal pump, the metal pump housing is made up of the front pump cover 3 that is separated from each other combination, volute 2, rear pump cover 4 and outlet section 1, wherein remains with a short outlet linkage section on the volute, flange ring is arranged on it, and the outlet section connecting end also has flange ring.Ultra-high molecular weight polyethylene plastic lining layer 5 has been moulded at each several part overcurrent position mold pressing lining respectively, then it is spliced and combined.
Claims (3)
1, plastic-lining centrifugal pump comprises the metal pump housing and the plastic lining layer be made up of front pump cover, volute, rear pump cover amalgamation, it is characterized in that said centrifugal pump metal volute separates with the pump discharge section, and it is combined and spliced that lining is moulded the back respectively.
2,, it is characterized in that keeping on the volute a short outlet linkage section according to the described plastic-lining centrifugal pump of claim 1.
3,, it is characterized in that volute upper outlet linkage section and separate the outlet section connecting end flange ring is arranged respectively according to claim 1 or 2 described plastic-lining centrifugal pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070151 CN2903491Y (en) | 2006-03-12 | 2006-03-12 | Plastic lining centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070151 CN2903491Y (en) | 2006-03-12 | 2006-03-12 | Plastic lining centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903491Y true CN2903491Y (en) | 2007-05-23 |
Family
ID=38078902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620070151 Expired - Lifetime CN2903491Y (en) | 2006-03-12 | 2006-03-12 | Plastic lining centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903491Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954039A (en) * | 2012-12-27 | 2013-03-06 | 宜兴市灵谷塑料设备有限公司 | Centrifugal pump of liner of sealed anti-cracking silicon carbide ceramic |
| ITMO20120026A1 (en) * | 2012-02-06 | 2013-08-07 | Certech S P A A Socio Unico | ANTI-WEAR CENTRIFUGAL PUMP |
-
2006
- 2006-03-12 CN CN 200620070151 patent/CN2903491Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMO20120026A1 (en) * | 2012-02-06 | 2013-08-07 | Certech S P A A Socio Unico | ANTI-WEAR CENTRIFUGAL PUMP |
| CN102954039A (en) * | 2012-12-27 | 2013-03-06 | 宜兴市灵谷塑料设备有限公司 | Centrifugal pump of liner of sealed anti-cracking silicon carbide ceramic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| EXPY | Termination of patent right or utility model |