CN2474877Y - Composite connecting pipe fitting - Google Patents
Composite connecting pipe fitting Download PDFInfo
- Publication number
- CN2474877Y CN2474877Y CN 01221828 CN01221828U CN2474877Y CN 2474877 Y CN2474877 Y CN 2474877Y CN 01221828 CN01221828 CN 01221828 CN 01221828 U CN01221828 U CN 01221828U CN 2474877 Y CN2474877 Y CN 2474877Y
- Authority
- CN
- China
- Prior art keywords
- skeleton
- connecting pipe
- utility
- model
- anticorrosive coat
- 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
Links
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- Laminated Bodies (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates a connecting pipe fitting to connect pipeline. In order to overcome the shortcomings of the bad corrosion resistance and the low mechanical strength by adopting connecting pipe fittings respectively made of steel products and glass reinforced plastic, the utility model comprises a metal framework 1 of which the inner surface adheres an inner anti-corrosive coating 2 made of plastic, and the outer surface of the metal framework 1 adheres an outer anti-corrosive coating 3 made of glass reinforced plastic. The utility model has the advantages of great corrosion resistance, long using time, high mechanical strength, and is capable of bearing the pressure intensity of 32 M P a.
Description
The utility model relates to a kind of connection pipe fitting that pipeline is connected.
The connection pipe fitting that pipeline is connected mainly comprises threeway, elbow, crossover sub etc.The connection pipe fitting of public use at present mainly contains two kinds, and a kind of is to adopt steel to make, and another kind is to adopt glass fibre reinforced plastics to make.The former corrosion resistance is relatively poor, and latter's intensity is lower, and the pressure that bears is lower.
The purpose of this utility model is, a kind of corrosion-resistant, composite connecting pipe spare that intensity is high is provided.
The purpose of this utility model is achieved in that composite connecting pipe spare, comprises the skeleton 1 that adopts metal to make; Its special way is: be attached with the interior anticorrosive coat 2 that adopts plastics to make on the internal surface of skeleton 1, be attached with the external anti-corrosion layer 3 that adopts glass fibre reinforced plastics to make on the outer surface of skeleton 1.
Skeleton 1 general Metal Material Welding or the stamped such as steel, Cuprum alloy of adopting, it is a main bearing course of the present utility model, is used to improve mechanical strength of the present utility model.The internal surface of 2 pairs of skeletons 1 of interior anticorrosive coat shields, and prevents that skeleton 1 is by dielectric corrosion.The material that anticorrosive coat 1 is adopted in making should specifically be selected according to the character of the medium of carrying, should guarantee Corrosion Protection to skeleton 1, prevent from again some special medium is produced pollution, for example the interior anticorrosive coat 2 of the connection pipe fitting that uses in the aqueduct of potable water should adopt nontoxic plastics manufacturing.External anti-corrosion layer 3 mainly contains two effects, and one is that outer surface to skeleton 1 shields, and prevents that skeleton 1 is corroded; Another is to bear certain pressure, can improve mechanical strength of the present utility model to a certain extent.Make the material that external anti-corrosion layer 3 is adopted, should guarantee Corrosion Protection, can bear certain pressure again, improve mechanical strength of the present utility model skeleton 1.
For the adhesion between anticorrosive coat 2 in improving and the skeleton 1, and 2 pairs of media of anticorrosive coat produce and pollute in preventing, anticorrosive coat 2 is for adopting the coating on the internal surface that is sprayed on skeleton 1 after polyethylene and EVA (copolymer of ethene and the vinyl acetate) blend in of the present utility model, and the thickness of interior anticorrosive coat 2 is 2～3mm.
Be sprayed on the interior anticorrosive coat 2 that forms on the internal surface of skeleton 1 after adopting polyethylene and EVA (copolymer of ethene and vinyl acetate) blend, skeleton 1 is had stronger adhesion, make between skeleton 1 and the interior anticorrosive coat 2 to connect firmly.The thickness of interior anticorrosive coat 2 both can guarantee that the utility model had the internal diameter that meets the requirements in 2～3mm scope, can guarantee the Corrosion Protection to skeleton 1 again.Polyethylene and EVA (copolymer of ethene and vinyl acetate) blend is nontoxic, makes the utility model can be used to carry potable water.
External anti-corrosion layer 3 of the present utility model is the frp layer on the outer surface that twines or be coated in skeleton 1.
Twine or be coated between glass fibre reinforced plastics external anti-corrosion layer 3 on the outer surface of skeleton 1 and the skeleton 1 stronger adhesion is not only arranged, make and connect between skeleton 1 and the external anti-corrosion layer 3 firmly, and can prevent that skeleton 1 pressurized from breaking, and further improves mechanical strength of the present utility model.In addition, itself has excellent corrosion resisting performance glass fibre reinforced plastics, and skeleton 1 is played a protective role, and prevents that skeleton 1 is corroded.
Compare with the connection pipe fitting that adopts the steel manufacturing, the utlity model has excellent corrosion resisting performance, improved working life.Compare with the connection pipe fitting that adopts the glass fibre reinforced plastics manufacturing, mechanical strength of the present utility model improves greatly, and the pressure that bears can reach 32Mpa.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 is embodiment's 1 an of the present utility model structural representation (sectional view).
Fig. 2 is embodiment's 2 an of the present utility model structural representation (sectional view).
Embodiment 1:
As shown in Figure 1, present embodiment is a kind of elbow, and it is made up of skeleton 1, interior anticorrosive coat 2 and external anti-corrosion layer 3.Skeleton 1 adopts steel welding or punching press to make, and a joint 4 is respectively welded at the two ends of skeleton 1.Interior anticorrosive coat 2 adopts polyethylene and EVA (copolymer of ethene and vinyl acetate) blend according to a certain percentage to make, and external anti-corrosion layer 3 adopts glass fibre reinforced plastics to make.On the internal surface of interior anticorrosive coat 2 attached to skeleton 1, on the outer surface of external anti-corrosion layer 3 attached to skeleton 1.The concrete manufacture process of present embodiment is; One, skeleton 1 is derusted, carry out phosphatization and handle, and after with coupling agent inner and outer surface being handled, be heated to about 200 ℃; Two, with polyethylene and EVA (copolymer of ethene and vinyl acetate) blend according to a certain percentage, and be sprayed on form on the internal surface of skeleton 1 in anticorrosive coat 2, the thickness of anticorrosive coat 2 is about 1.5 in making; Three, on the outer surface of skeleton 1, twine or apply certain thickness glass fibre reinforced plastics formation external anti-corrosion layer 3.
Embodiment 2:
As shown in Figure 2, present embodiment is a kind of threeway, and it is made up of skeleton 1, interior anticorrosive coat 2 and external anti-corrosion layer 3.A joint 4 is respectively welded in three outlets of skeleton 1.Present embodiment is except shape and embodiment 1 are different, and material that skeleton 1, interior anticorrosive coat 2 and external anti-corrosion layer 3 are adopted and the connection relation between them are all identical with embodiment's 1.The manufacture process of present embodiment is also identical substantially with embodiment 1, repeats no more here.
Claims (3)
1. composite connecting pipe spare comprises the skeleton (1) that adopts metal to make; It is characterized in that: be attached with the interior anticorrosive coat (2) that adopts plastics to make on the internal surface of skeleton (1), be attached with the external anti-corrosion layer (3) that adopts glass fibre reinforced plastics to make on the outer surface of skeleton (1).
2. composite connecting pipe spare according to claim 1, it is characterized in that: interior anticorrosive coat (2) is for adopting the coating on the internal surface that is sprayed on skeleton (1) after polyethylene and EVA (copolymer of ethene and the vinyl acetate) blend, and the thickness of interior anticorrosive coat (2) is 2～3mm.
3. composite connecting pipe spare according to claim 1 and 2 is characterized in that: external anti-corrosion layer (3) is the frp layer on the outer surface that twines or be coated in skeleton (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221828 CN2474877Y (en) | 2001-04-25 | 2001-04-25 | Composite connecting pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221828 CN2474877Y (en) | 2001-04-25 | 2001-04-25 | Composite connecting pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2474877Y true CN2474877Y (en) | 2002-01-30 |
Family
ID=33638950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01221828 Expired - Fee Related CN2474877Y (en) | 2001-04-25 | 2001-04-25 | Composite connecting pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2474877Y (en) |
-
2001
- 2001-04-25 CN CN 01221828 patent/CN2474877Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Yu Zhengzhou Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |