CN201964046U - 300-400mm steel wire gauze enhanced polyolefin-wound water supply pipe - Google Patents
300-400mm steel wire gauze enhanced polyolefin-wound water supply pipe Download PDFInfo
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- CN201964046U CN201964046U CN2011200251247U CN201120025124U CN201964046U CN 201964046 U CN201964046 U CN 201964046U CN 2011200251247 U CN2011200251247 U CN 2011200251247U CN 201120025124 U CN201120025124 U CN 201120025124U CN 201964046 U CN201964046 U CN 201964046U
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- steel wire
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- water supply
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Abstract
The utility model relates to a steel wire gauze enhanced polyolefin-wound water supply pipe which can be made into a high-strength plastic pipe with less plastic raw material. An inner layer of the water supply pipe is a PE (polyurethane) layer, the PE is provided with at least one of steel wire layers, and the PE layer is arranged on the steel wire layers. The water supply pipe has the advantages that 1 the manufacture raw material of the pipe is reduced by 40-50% under the condition that the water supply pressure is guaranteed; 2 the manufacture bottleneck of the conventional plastic water supply pipe is overcome, so that the diameter of the plastic pipe is increased from 1000mm to 3000mm in a water supply region; and 3 the plastics can not be separated from a steel plate caused by expansion with heat and contraction with cold in the conventional steel plate.
Description
Technical field
The utility model relates to a kind ofly can adopt less plastic raw material, and the 300-4000mm steel wire of making high strength reinforced plastic pipe strengthens polyolefin and twines supply pipe, belongs to plastic tube and makes the field.
Background technique
Present standard GB/T 18252, PE supply pipe 0.8MPa, diameter are that the low pressure feed water tube wall thickness of 1000mm is 59.6mm.More outstanding is that production only is limited to below the 1000mm NBS to the PE supply pipe.For this reason, part producer has developed structural type steel band reinforced pipe.Its deficiency: because the steel band structure increases tube-surface plastic layer too thin (making H steel shape can't thicken), and PE manages two ends and can't seal, and causes that steel band separates with plastics under the situation of expanding with heat and contract with cold, and directly influences product working life.
The model utility content
Purpose of design: avoid the deficiency in the background technique, designing a kind ofly can increase plastic water supply pipe intensity, and the 300-4000mm steel wire that can save a large amount of plastic raw materials again strengthens polyolefin and twines supply pipe.
Design proposal: in order to realize above-mentioned purpose of design.1,300-4000mm steel wire enhancing polyolefin winding supply pipe is divided into three layers, and internal layer twines the 20mmPE band, twines the double-layer high strength steel wire at the second layer, and the 3rd layer then twines the design that thickness 10mmPE is with, be one of technical characteristics of the present utility model.The purpose of doing like this is: first layer PE raw material, can guarantee that plastics are corrosion-resistant, in light weight, low-cost; Second layer high-tensile steel wires twine can bear the pulling force that is higher than tens times in plastics, improves interior pressure of feedwater of plastic tube; The 3rd layer of winding plastic band again on steel wire do not corroded steel wire, and outward appearance is more attractive in appearance.Because internal and external layer has thicker plastic layer, can limit the distortion of steel wire under the state of expanding with heat and contract with cold, do not separate between protection metal and the plastics.It is the PE of 60mm that thickness is twined in the two end 60mm zone of tubing.
Technological scheme: a kind of 300-4000mm steel wire strengthens polyolefin and twines supply pipe, and internal layer is the PE layer, and PE is equipped with one or more layers of steel wire floor, is equipped with the PE layer on the steel wire floor.
The utility model is compared with background technique, and the one, under the situation that guarantees water delivery pressure, reduce tubing and make raw material 40-50%; The 2nd, overcome the bottleneck that the conventional plastic water-feeding pipes is made, plastic tube is carried by original diameter 1000mm in the feedwater field got diameter 3000mm; The 3rd, overcome the conventional steel plates enhancing and made plastics and steel plate segregation phenomenon owing to expand with heat and contract with cold.
Description of drawings
Fig. 1 is that the 300-4000mm steel wire strengthens polyolefin winding supply pipe structural representation.
Fig. 2 is that Fig. 1 steel wire strengthens polyolefin winding supply pipe sectional view.
Fig. 3 is a therefrom cut-away illustration of tubing.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-3.A kind of 300-4000mm steel wire strengthens polyolefin and twines supply pipe, and internal layer is a PE layer 3, and PE is equipped with one or more layers of steel wire floor 2, is equipped with PE layer 1 on the steel wire floor 2.Described internal layer adopts PE band coiling moulding, and the thickness of described internal layer is 20-25mm.The described outer PE band coiling moulding of adopting.Described steel wire floor 2 is an individual layer.Described steel wire floor 2 is one deck when above, and the dislocation coiling that is arranged as of its steel wire floor is arranged.
Embodiment 1-1: on embodiment 1 basis, described steel wire floor 2 is two layers, and the dislocation coiling that is arranged as of its steel wire floor is arranged.
Embodiment 1-2: on embodiment 1 basis, described steel wire floor 2 is three layers, and the steel wire in the Compound Steel silk layer is arranged for the dislocation coiling.
A kind of 300-4000mm steel wire strengthens the forming method that polyolefin twines supply pipe; at first on mould machine mould, twine first layer PE band; the pipe range of Wrapping formed inner tube be greater than or less than 6 meters long; then inner tube is heated; make the deliquescing of inner tube top layer; the swivelling pipe timber die; while mould matched motion on x axle and Y direction; steel wire is embedded in the inner layer tube wall along then twining on the whole piece PE inner tube and with it as screw thread; at last PE band is wrapped on the steel wire floor and with steel wire and inner tube adhere; after twining the complete strips pipe, PE pipe cooling and shaping on mould is delivered to the demoulding on the stripper then.The thickness 15-25mm of described PE band, width 80-100mm.
That is to say that steel wire strengthens polyolefin and twines supply pipe, the monolateral thickness of its product is 30mm, and adopting intensity is the steel wire of 2000MPa.The width of steel wire is that 20mm(10 steel wires this moment twine together).At first twine first layer PE band in the production process, its thickness 20mm, width 90mm.6 meters of the tubing of manufacturer's standard are long, and first layer twines with 30 clocks (is example with DN1000 tubing), begin second layer steel wire after first layer twines and finishes and twine.To first layer PE heating, target is to make top layer 3mm zone deliquescing, is beneficial to steel wire and embeds before winding.The swivelling pipe timber die, while mould matched motion on x axle and Y direction, steel wire is managed along then twining whole piece PE as screw thread.Begin around the 3rd layer of PE after finishing the second layer, the method for its winding is identical with first layer.After twining the complete strips pipe, allow PE pipe cooling and shaping on mould, deliver to the demoulding on the stripper then.
For example: following with a specification product strength checking: nominal outside diameter dn=1000mm nominal pressure PN=0.8MPa minimum wall thickness (MINI W.) emin=25mm.
Adopt the cross-section area S=π/4di 2=0.785mm of the steel wire diameter di=every steel wire of 1mm of steel wire
2
High-tensile steel wires intensity commonly used
B=2000MPa=2000 N/mm2, safety coefficient gets 3, steel wire design stress=666 N/mm
2
The power that every steel wire can bear is 0.785 x, 666=523N;
Every side 1000 long tube walls need 400,000/523=764 on steel wire;
Steel wire twines two-layer, 382 every layer;
The about 3mm of steel wire centre distance, the steel wire nearly 2mm of being separated by;
Whether PE layer tube wall enough bears axial stress;
Axial force=nominal pressure PN x tubing sectional area=1 x, 10002 x, 3.14/4=785000 N;
PE layer tube wall is inherent has axially still radially spread identical steel wire, and its carrying is all mutually: 800, and 000N;
Axial force=nominal pressure PN x tubing sectional area=1 N/ mm
2((1000-120)/2)
2X 3.14=609904 N;
PE layer tube wall sectional area=3.14 X ((1000/2)
2-(940/2)
2)=91374 mm
2
PE layer tube wall axial tension stress=609904/91374=6.7N/mm
2
The allowable design stress of PE 100 is 8 MPa=8N/ mm
2So stiffness is enough.
What need understand is: though the foregoing description is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (5)
1. a 300-4000mm steel wire strengthens polyolefin winding supply pipe, and it is characterized in that: internal layer is the PE layer, and PE is equipped with one or more layers of steel wire floor, is equipped with the PE layer on the steel wire floor.
2. 300-4000mm steel wire according to claim 1 strengthens polyolefin and twines supply pipe, it is characterized in that: described internal layer adopts PE band coiling moulding.
3. 300-4000mm steel wire according to claim 1 and 2 strengthens polyolefin and twines supply pipe, and it is characterized in that: the thickness of described internal layer is 20-25mm.
4. 300-4000mm steel wire according to claim 1 strengthens polyolefin and twines supply pipe, it is characterized in that: the described outer PE of employing band coiling moulding.
5. 300-4000mm steel wire according to claim 1 strengthens polyolefin and twines supply pipe, it is characterized in that: described steel wire floor is one deck when above, its steel wire floor be arranged as dislocation coiling arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200251247U CN201964046U (en) | 2011-01-26 | 2011-01-26 | 300-400mm steel wire gauze enhanced polyolefin-wound water supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200251247U CN201964046U (en) | 2011-01-26 | 2011-01-26 | 300-400mm steel wire gauze enhanced polyolefin-wound water supply pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964046U true CN201964046U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200251247U Expired - Fee Related CN201964046U (en) | 2011-01-26 | 2011-01-26 | 300-400mm steel wire gauze enhanced polyolefin-wound water supply pipe |
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|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182880A (en) * | 2011-01-26 | 2011-09-14 | 浙江双林塑料机械有限公司德清分公司 | Water supply pipe wounded by 300-4000 mm steel wire mesh reinforced polyolefin and molding method thereof |
-
2011
- 2011-01-26 CN CN2011200251247U patent/CN201964046U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182880A (en) * | 2011-01-26 | 2011-09-14 | 浙江双林塑料机械有限公司德清分公司 | Water supply pipe wounded by 300-4000 mm steel wire mesh reinforced polyolefin and molding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SHUANGLIN ELECTROMECHANICAL TECHNOLOGY CO Free format text: FORMER OWNER: DEQING BRANCH COMPANY OF ZHEJIANG SHUANGLIN PLASTIC MACHINERY CO., LTD. Effective date: 20120731 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120731 Address after: 313213, No. 111 West South Road, Yu Town, Huzhou, Zhejiang, Deqing County Patentee after: Zhejiang Shuanglin Electromechanical Technology Co., Ltd. Address before: 313213 Yu Town, Deqing County, Zhejiang, Huzhou Patentee before: Deqing Branch of Zhejiang Shuanglin Plastic Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20190126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |