CN202360998U - Abrasion resistant polyurea elastic body compound pipe - Google Patents
Abrasion resistant polyurea elastic body compound pipe Download PDFInfo
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- CN202360998U CN202360998U CN2011205135581U CN201120513558U CN202360998U CN 202360998 U CN202360998 U CN 202360998U CN 2011205135581 U CN2011205135581 U CN 2011205135581U CN 201120513558 U CN201120513558 U CN 201120513558U CN 202360998 U CN202360998 U CN 202360998U
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- spua
- elastic body
- pipe fitting
- flange
- wear
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Abstract
The utility model relates to an abrasion resistant polyurea elastic body compound pipe, which includes a steel pipe and a polyurea elastic body abrasion resistant layer compounded on the inner wall of the steel pipe as well as a polyurea elastic body turned-over edge arranged on the compound pipe at the end connected with a flange, wherein the compound polyurea elastic body abrasion resistant layer and the polyurea elastic body turned-over edge are connected into a whole. The types of the polyurea elastic body compound pipe include straight pipes or bend pipes, three-way pipes, four-way pipes, reducing pipes and the like. The polyurea elastic body compound pipe disclosed by the utility model is applicable to high pressure pipeline transmission for two-phase flow formed by corrosive liquid and abrasive solid, can remarkably enhance the abrasive performance and corrosive performance, and improves the service life of the pipeline.
Description
Technical field
The utility model relates to a kind of conveyance conduit, the concrete conveyance conduit that relates to a kind of wear-corrosion resistance.
Background technique
The line transportation of two phase flow (slurry) is one of logistlcs technology of generally adopting of modern industrial and mining enterprise; Carry or the like like the pulverized fuel ash slurry conveying in thermal power plant, the iron ore concentrate slurry of iron ore and water coal slurry and the coal separation dense media that mine tailing is starched conveying, coal washery, colliery, the common issue with that this type enterprise faces is exactly the serious (wearing and tearing of solid particle of pipeline erosion; The corrosion of liquid and intermediate ion thereof), shorten working life.Frequent replacing pipeline or pipe fitting not only influence normally carrying out of production, and can cause heavy economic burden to enterprise.
To the problems referred to above, the technical measures that generally adopt at present are inside complex abrasion-proof and corrosion-resistant material at steel pipe and steel pipe fitting.According to different, can be divided into two types with its compound material hardness:
(1) the compound high hardness rigid material of inwall: like pottery, cast stone and abrasion resistance alloy.The problem that this type composite pipe and pipe fitting exist: the one, the weight of high-abrasive material is big, and the operation easier when installing and changing is bigger; The 2nd, because inner liner abrasive resistant material coefficient of thermal expansion coefficient and metal differ greatly, and toughness is less, and big or pipeline is when longer in the residing variation of ambient temperature of pipeline, and the expansion of inside and outside material or shrinking stress can cause interlayer to peel off;
(2) the compound low hardness elastic material of inwall: like plastics and rubber.The kind of plastics comprises the blend of ultra-high molecular weight polyethylene, polyethylene, PVC and several kinds of plastics.In this type material, except that ultra-high molecular weight polyethylene and rubber, the wear resistance of other material is all lower.But because the formability of ultra-high molecular weight polyethylene is poor, and the surface has strong hydrophoby, and being difficult to compound with steel pipe and steel pipe fitting is one, can only be to be sleeved on together after the moulding respectively again.The complex form of this " inside and outside two skins " is even also be difficult to thorough change through middle coating binder after the surface modification.In addition, though ultra-high molecular weight polyethylene has certain elasticity, elasticity is less, and the sealing of adpting flange end is relatively poor, uses the phenomenon that usually occurs that plastic lining is peeled off or stress shrinks after a period of time and scrap.
Though rubber has good wear resistance and decay resistance, and elasticity is bigger, is the good composite material of wear-corrosion resistance composite pipe and pipe fitting.But no matter natural rubber or artificial rubber comprise polyurethane elastomer, all need after moulding, carry out high temperature " sulfuration ", make linear macromolecule be cross-linked into reticular structure, thereby obtain its due performance.Moulding that rubber is intrinsic and sulfuration process are difficult to use in compound with steel pipe and pipe fitting; Especially for long steel pipe and bigger pipe fitting; At present also only be stick with glue agent with the sheet rubber manual adhesive at pipeline and pipe fitting inside simple in structure and that diameter is bigger, to powerless with complex-shaped, that diameter is less, length is bigger pipeline or pipe fitting.
Summary of the invention
According to above situation, the purpose of the utility model provides a kind of wear-corrosion resistance SPUA composite pipe fitting, has more excellent abrasive and toughness, and easy to process.
The wear-corrosion resistance SPUA composite pipe fitting that the utility model provides comprises steel pipe and the SPUA wearing layer that is compounded in the steel pipe inwall; And the SPUA flange that is provided with at composite pipe fitting adpting flange end; Said compound SPUA wearing layer and SPUA flange are connected as a single entity, the gasket seal during as connection.
Wear-corrosion resistance SPUA composite pipe fitting comprises straight tube or bend pipe, reducer, three-way pipe, four-way pipe etc., and SPUA is through the spraying of pipe special spray gun or casts directly on the inwall of steel pipe.SPUA is a kind of block polymer, except that containing urethano group, also contains ether, ester or urea groups.Because the existence of polar groups in a large number can form hydrogen bond with intermolecular in the molecule, soft section and hard section can form the microfacies district and produce micron-scale phase separation, and forms physical crosslinking.These structural features make SPUA have more excellent abrasive and toughness.
Adopt above-mentioned wear-corrosion resistance SPUA composite pipe fitting, composite pipe fitting is in light weight, and wear-corrosion resistance is good, both has been applicable to complex-shaped pipe fitting, also is applicable to diameter is less, length is bigger pipeline or pipe fitting, and combination process is simple, and composite effect is good; The SPUA flange of liner is extended to the flange outside as seal washer, realized that pipeline and seal washer are integrated, sealing effect is better.
Description of drawings
Fig. 1 is the compound straight tube structure schematic representation of the wear-corrosion resistance SPUA of the utility model;
Fig. 2 and Fig. 3 are the wear-corrosion resistance SPUA composite-curve structural representation of the utility model;
Fig. 4 is the compound reducer structural representation of the wear-corrosion resistance SPUA of the utility model;
Fig. 5 and Fig. 6 are the compound three-way pipe structure schematic representation of the wear-corrosion resistance SPUA of the utility model;
Fig. 7 and Fig. 8 are the compound four-way pipe structural representation of the wear-corrosion resistance SPUA of the utility model.
Embodiment
As shown in Figure 1; Wear-corrosion resistance SPUA composite pipe fitting comprises steel pipe 1 and the SPUA wearing layer 2 that is compounded in the steel pipe inwall; And the SPUA flange 4 that is provided with at composite pipe fitting adpting flange end 3, said compound SPUA wearing layer 2 is connected as a single entity with SPUA flange 4.During practical implementation; Go out the straight pipeline steel main body of pipe fitting earlier according to the dimensioned of two phase flow transport requirement, require to select the flange of suitable specification again according to line transportation, the flange single or double is welded in the adpting flange end of pipe fitting; Pour into a mould or spray certain thickness SPUA wearing layer after at last the internal surface of pipe fitting being handled; And the SPUA flange of liner extended to the flange outside, and form the seal washer of butt joint usefulness, obtain the compound straight tube of wear-corrosion resistance SPUA.
As shown in Figures 2 and 3; Wear-corrosion resistance SPUA composite pipe fitting comprises steel pipe 1 and the SPUA wearing layer 2 that is compounded in the steel pipe inwall; And the SPUA flange 4 that is provided with at composite pipe fitting adpting flange end 3, said compound SPUA wearing layer 2 is connected as a single entity with SPUA flange 4.During practical implementation; Go out the curved pipe steel main body of pipe fitting earlier according to the dimensioned of two phase flow transport requirement, require to select the flange of suitable specification again according to line transportation, the flange single or double is welded in the adpting flange end of pipe fitting; Pour into a mould or spray certain thickness SPUA wearing layer after at last the internal surface of pipe fitting being handled; And the SPUA flange of liner extended to the flange outside, and form the seal washer of butt joint usefulness, obtain wear-corrosion resistance SPUA composite-curve.
As shown in Figure 4; Wear-corrosion resistance SPUA composite pipe fitting comprises steel pipe 1 and the SPUA wearing layer 2 that is compounded in the steel pipe inwall; And the SPUA flange 4 that is provided with at composite pipe fitting adpting flange end 3, said compound SPUA wearing layer 2 is connected as a single entity with SPUA flange 4.During practical implementation; Go out the reducing pipeline steel main body of composite pipe fitting earlier according to the dimensioned of two phase flow transport requirement; Require to select the flange of suitable specification again according to line transportation; The flange single or double is welded in the adpting flange end of steel pipe or pipe fitting, pours into a mould or spray certain thickness SPUA wearing layer after at last the internal surface of pipe fitting being handled, and the SPUA flange of liner is extended to the flange outside; Form the seal washer of butt joint usefulness, obtain the compound reducer of wear-corrosion resistance SPUA.
Embodiment 4
Like Fig. 5 and shown in Figure 6; Wear-corrosion resistance SPUA composite pipe fitting comprises steel pipe 1 and the SPUA wearing layer 2 that is compounded in the steel pipe inwall; And the SPUA flange 4 that is provided with at composite pipe fitting adpting flange end 3, said compound SPUA wearing layer 2 is connected as a single entity with SPUA flange 4.During practical implementation; Go out the three-way pipeline steel main body of pipe fitting earlier according to the dimensioned of two phase flow transport requirement; Require to select the flange of suitable specification again according to line transportation; The flange single or double is welded in the adpting flange end of pipe fitting, pours into a mould or spray certain thickness SPUA wearing layer after at last the internal surface of pipe fitting being handled, and the SPUA flange of liner is extended to the flange outside; Form the seal washer of butt joint usefulness, obtain the compound three-way pipe of wear-corrosion resistance SPUA.
Embodiment 5
Like Fig. 7 and shown in Figure 8; Wear-corrosion resistance SPUA composite pipe fitting comprises steel pipe 1 and the SPUA wearing layer 2 that is compounded in the steel pipe inwall; And the SPUA flange 4 that is provided with at composite pipe fitting adpting flange end 3, said compound SPUA wearing layer 2 is connected as a single entity with SPUA flange 4.During practical implementation; Go out the four-way pipeline steel main body of pipe fitting earlier according to the dimensioned of two phase flow transport requirement; Require to select the flange of suitable specification again according to line transportation; The flange single or double is welded in the adpting flange end of pipe fitting, pours into a mould or spray certain thickness SPUA wearing layer after at last the internal surface of pipe fitting being handled, and the SPUA flange of liner is extended to the flange outside; Form the seal washer of butt joint usefulness, obtain the compound four-way pipe of wear-corrosion resistance SPUA.
Claims (3)
1. wear-corrosion resistance SPUA composite pipe fitting; The SPUA wearing layer that it is characterized in that comprising steel pipe and be compounded in the steel pipe inwall; And the SPUA flange that is provided with at composite pipe fitting adpting flange end, said compound SPUA wearing layer and SPUA flange are connected as a single entity.
2. wear-corrosion resistance SPUA composite pipe fitting according to claim 1 is characterized in that described SPUA complex abrasion-proof layer directly sprays or is cast on the steel pipe inwall.
3. wear-corrosion resistance SPUA composite pipe fitting according to claim 1 is characterized in that described wear-corrosion resistance SPUA composite pipe fitting comprises straight tube or bend pipe, reducer, three-way pipe, four-way pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205135581U CN202360998U (en) | 2011-12-12 | 2011-12-12 | Abrasion resistant polyurea elastic body compound pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205135581U CN202360998U (en) | 2011-12-12 | 2011-12-12 | Abrasion resistant polyurea elastic body compound pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360998U true CN202360998U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205135581U Expired - Fee Related CN202360998U (en) | 2011-12-12 | 2011-12-12 | Abrasion resistant polyurea elastic body compound pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267180A (en) * | 2013-05-31 | 2013-08-28 | 中国水利水电第十三工程局有限公司汽车修理总厂 | Elastomer composite self-floating rubber tube and manufacturing technique thereof |
-
2011
- 2011-12-12 CN CN2011205135581U patent/CN202360998U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267180A (en) * | 2013-05-31 | 2013-08-28 | 中国水利水电第十三工程局有限公司汽车修理总厂 | Elastomer composite self-floating rubber tube and manufacturing technique thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |