CN201475521U - Multilayer PVC winding pipe - Google Patents
Multilayer PVC winding pipe Download PDFInfo
- Publication number
- CN201475521U CN201475521U CN2009201731460U CN200920173146U CN201475521U CN 201475521 U CN201475521 U CN 201475521U CN 2009201731460 U CN2009201731460 U CN 2009201731460U CN 200920173146 U CN200920173146 U CN 200920173146U CN 201475521 U CN201475521 U CN 201475521U
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- China
- Prior art keywords
- wall
- plates
- multilayer
- pvc
- entwining tube
- 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 - Lifetime
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- 238000004804 winding Methods 0.000 title abstract description 15
- 239000000463 material Substances 0.000 claims description 29
- 239000005435 mesosphere Substances 0.000 claims description 10
- 239000002216 antistatic agent Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003245 coal Substances 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract 2
- 230000005611 electricity Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 22
- 229920000915 polyvinyl chloride Polymers 0.000 description 21
- 239000004800 polyvinyl chloride Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002648 laminated material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Abstract
The utility model discloses a multilayer PVC winding pipe. A pipe wall of the winding pipe is divided into multiple layers including an inner wall, an outer wall and an intermediate layer, the inner wall and the outer wall are solid wall plates with anti-static function, and the intermediate layer is one layer or a plurality of layers of hollow structural plates. Through multilayer winding, the inner wall and the outer wall are solid wall plates with the anti-static function, contacting surfaces of mutually bonded plates are in concave-convex structure with increased bonding area, ring rigidity of the PVC winding pipe are led to be increased over 12Kpa, and the plates can not creep and disconnect due to uneven bonding strength among layers as the plates meet static electricity resistance of MT-181 requirements, thereby the winding pipe meets applying demands of drawing out methane down in coal mine.
Description
Technical field
The utility model relates to the entwining tube technical field, particularly relates to drawing out methane under a kind of coal mine with heavy caliber multilayer PVC (Poly Vinyl Chloride, PVC) entwining tube.
Background technique
Existing P VC entwining tube belongs to structural walls PVC entwining tube, and they are to twine and a kind of tubing of formation through spiral with one deck or two-layer sheet material.Advantage in light weight, the material saving that more real wall thickness has.The characteristics of its plate construction are the hollow two flat walls.The sheet material material that constitutes entwining tube is the PVC material of same nature.During two-layer winding, adopt between two-layer bonding.Its tube wall mechanism as depicted in figs. 1 and 2.The purposes of this class entwining tube is to be used for gravity drainage or water delivery.
But this kind PVC entwining tube can only be used for gravity drainage or water delivery, and can't be applied to the gas extraction under the coal mine.Major defect is:
(1) do not meet the antistatic technology index that draws out methane under the coal mine with tubing.According to MT181 " underground mine use plastic tube Safety performance inspection specification ", the surface resistance that draws out methane under the coal mine with plastic tube is less than 1.0 * 10
6Ω.And the surface resistance of common PVC material is generally 1.0 * 10
15More than the Ω.Make the sheet material of above-mentioned entwining tube reach antistatic index, must in prescription, add a considerable amount of anti-static agent.A large amount of evidences, the affiliation that adds of anti-static agent declines to a great extent the tension and the impact strength of PVC entwining tube material, can't satisfy in the pipe applications requirement to intensity.
(2) the multipotency of the ring stiffness of above-mentioned individual layer or double-deck entwining tube reaches 8Kpa.Reason is cube being directly proportional of ring stiffness and structure wall thickness of entwining tube, with cube being inversely proportional to of the diameter of entwining tube.The ring stiffness that improves entwining tube just must increase its plate construction wall thickness.But in winding process, the outer wall of sheet material is stretched, and inwall by compression.If the structure wall thickness of sheet material exceeds certain limit, its outer wall is broken, and inwall produce discounting, makes the intensity of entwining tube impaired significantly, even can't use.Therefore, the ring stiffness of above-mentioned entwining tube all is no more than 8Kpa, and require then must be greater than 12Kpa for ring stiffness with tubing but the colliery draws out methane.
In addition, the two-layer sheet material of the double-deck wrapped tube of this kind is two flat walls, and is bonding with tackiness agent between two walls.Binder is the solvent of PVC, relies on the pressure realization when twining bonding, and bond area is the area of planomural.Evidence, during the tubing extraction, produce the certain vacuum degree, the continuous variation of degree of vacuum, pipe diameter is respective change also, causes tubing generation creep, because the pressure when twining is limited, and bond area also only limits to the planomural area of sheet material, so bonding strength is restricted, is not enough to bear the long-term creep effect of tubing.Time one is long, just produces between the double-walled and throws off phenomenon, thereby cause that the tubing ring stiffness descends.
The model utility content
Problem to be solved in the utility model provides a kind of multilayer PVC entwining tube, with overcome PVC entwining tube of the prior art owing to antistatic effect a little less than and the little defective that can not be applied to the gas extraction under the coal mine that causes of ring stiffness.
For achieving the above object, the technical solution of the utility model provides a kind of multilayer PVC entwining tube, and the tube wall of described entwining tube is divided into multilayer, comprises inwall, outer wall and mesosphere; Described inner and outer wall is the real walled sheet with anti-static function; Described mesosphere is one or more layers hollow structure sheet material.
Preferably, the surface resistance of described inner and outer wall is less than 1.0 * 10
6Ω.
Preferably, contain anti-static agent in the sheet material of described formation inner and outer wall.
Preferably, the surface that described inner and outer wall contacts with the mesosphere has first concaveconvex structure, and the surface that described mesosphere contacts with inner and outer wall respectively has second concaveconvex structure, described first concaveconvex structure and the second concaveconvex structure mutual dislocation socket joint.
Preferably, the surface of contact of described first concaveconvex structure and second concaveconvex structure is triangle, circular arc, rectangle or square.
Compared with prior art, the technical solution of the utility model has following advantage:
The utility model passes through multi-lay winding, inner and outer wall is the real walled sheet with anti-static function, the surface of contact of bonding sheet material is to have the concaveconvex structure that increases bond area mutually, make the ring stiffness of PVC wrapped tube be increased to more than the 12Kpa, tubing has had the antistatic behaviour that satisfies the MT-181 requirement, can not throw off, satisfy the application requirements that draws out methane under the coal mine because of each interlayer bonding strength inequality creep.
Description of drawings
Fig. 1 is the structural representation of a kind of PVC entwining tube of prior art;
Fig. 2 is the structural representation of the another kind of PVC entwining tube of prior art;
Fig. 3 is the structural representation of a kind of multilayer PVC entwining tube of the utility model embodiment;
Fig. 4 is the structural representation of inner and outer wall among Fig. 3;
Fig. 5 is the structural representation of first sandwich layer among Fig. 3;
Fig. 6 is the structural representation of second sandwich layer among Fig. 3.
Wherein, 31 is outer wall, and 32 is first sandwich layer, and 33 is second sandwich layer, and 34 is inwall.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
The structure of a kind of multilayer PVC entwining tube of the utility model embodiment adopts the method for multi-lay winding as shown in Figure 3, makes the tube wall of entwining tube be divided into multilayer.PVC entwining tube in the present embodiment comprises outer wall 31, first sandwich layer 32, second sandwich layer 33 and inwall 34, and wherein first sandwich layer 32 and second sandwich layer 33 are the mesosphere.
In the present embodiment, inside and outside wall is real walled sheet, and middle each layer is hollow structure sheet material.Inside and outside real walled sheet is the anti-static function layer, and it mainly acts on is to satisfy the requirement of coal mine gas releasing pipe to surface resistance, so its technical recipe only need be considered anti-static stability and needn't too consider the problem of intensity.
The mesosphere is that the sheet material of multilayer hollow structure is formed, it mainly acts on is to satisfy the requirement of gas extraction pipe to ring stiffness, owing to need not consider anlistatig requirement, do not contain anti-static agent in the prescription, guaranteed that the strength of materials can not descend, owing to adopted the multi-layered board winding, the structural thickness of every laminate material reduces than individual layer or double-deck the winding, winding is easy and removed inwall discounting phenomenon, twines effect and product qualified rate and increases substantially.For increasing the intensity between the bonding mutually two-layer sheet material, the problem that solution is thrown off between two-layer because of the tubing creep makes, no longer adopt sheet material two flat walls hollow structure form in the past, change wooden partition into triangle or rectangular protrusions surface, triangle between two wooden partitions or rectangle mutual dislocation socket joint, as shown in Figure 3 and Figure 4.Its effect is that the bond area between two-layer has increased 2-3 doubly than the bond area between two planomurals.And with the socket joint between triangle or the rectangle, can be by regulating the size of plug and bellmouth, realize interference fit, increased bonding pressure during winding, thereby increased bonding strength, test shows, because the increase of bonding pressure when the increase of bond area and socket joint, the bonding strength between two-layer has improved 3-5 doubly than bonding between two planomurals.
When preparation multilayer PVC entwining tube of the present utility model, adopt following method:
Required each the laminate material of entwining tube,, lap buckle form thick according to wall thickness, the muscle of sheet material of design and structure wall thickness etc. have related parameter, and exploitation sheet material extrusion die is extruded by double screw extruder.The sheet material dish circle of extruding batches on the sheet material reel, cuts off to specific length, and sheet material length is calculated definite according to the diameter and the coiling length of the pipe that will twine.
Entwining tube is realized by twining Stetch Wrapping Machine, six groups of rollers that rounded distribution is arranged on the front panel of Stetch Wrapping Machine, form by two rollers for every group, sheet material is inserted between two rollers of every group of roller, starting electrical machinery then, drive six groups of rollers by drive chain and rotate, drive lath and advance, lath overlaps the entwining tube of bonding formation specified caliber mutually.
Each laminate material is before entering roller, and automatic glue spreading device is automatic glue application on tube wall, realizes bonding between each layer.The inner and outer surface layer of tubing also can realize that in the extruder mould heat fuses by mould, or bonding on special paper face overlays machine before entering Stetch Wrapping Machine.
The utility model passes through multi-lay winding, inner and outer wall is the real walled sheet with anti-static function, the surface of contact of bonding sheet material is to have the concaveconvex structure that increases bond area mutually, make the ring stiffness of PVC wrapped tube be increased to more than the 12Kpa, tubing has had the antistatic behaviour that satisfies the MT-181 requirement, can not throw off, satisfy the application requirements that draws out methane under the coal mine because of each interlayer bonding strength inequality creep.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a multilayer PVC entwining tube is characterized in that the tube wall of described entwining tube is divided into multilayer, comprises inwall, outer wall and mesosphere;
Described inner and outer wall is the real walled sheet with anti-static function;
Described mesosphere is one or more layers hollow structure sheet material.
2. multilayer PVC entwining tube as claimed in claim 1 is characterized in that the surface resistance of described inner and outer wall is less than 1.0 * 10
6Ω.
3. multilayer PVC entwining tube as claimed in claim 1 is characterized in that, contains anti-static agent in the sheet material of described formation inner and outer wall.
4. as each described multilayer PVC entwining tube of claim 1 to 3, it is characterized in that, the surface that described inner and outer wall contacts with the mesosphere has first concaveconvex structure, the surface that described mesosphere contacts with inner and outer wall respectively has second concaveconvex structure, described first concaveconvex structure and the second concaveconvex structure mutual dislocation socket joint.
5. multilayer PVC entwining tube as claimed in claim 4 is characterized in that, the surface of contact of described first concaveconvex structure and second concaveconvex structure is triangle, circular arc, rectangle or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201731460U CN201475521U (en) | 2009-08-24 | 2009-08-24 | Multilayer PVC winding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201731460U CN201475521U (en) | 2009-08-24 | 2009-08-24 | Multilayer PVC winding pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475521U true CN201475521U (en) | 2010-05-19 |
Family
ID=42411771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201731460U Expired - Lifetime CN201475521U (en) | 2009-08-24 | 2009-08-24 | Multilayer PVC winding pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475521U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172983A (en) * | 2011-01-25 | 2011-09-07 | 谭江南 | Production method of steel plastic concrete composite wound pipe |
| CN108469662A (en) * | 2017-02-23 | 2018-08-31 | 玉晶光电(厦门)有限公司 | Optical lens, its assemble method and lens barrel |
| CN111022781A (en) * | 2019-12-05 | 2020-04-17 | 杭州坦科机械科技有限公司 | Glass fiber reinforced plastic pipeline with hollow wall structure and manufacturing process thereof |
-
2009
- 2009-08-24 CN CN2009201731460U patent/CN201475521U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172983A (en) * | 2011-01-25 | 2011-09-07 | 谭江南 | Production method of steel plastic concrete composite wound pipe |
| CN108469662A (en) * | 2017-02-23 | 2018-08-31 | 玉晶光电(厦门)有限公司 | Optical lens, its assemble method and lens barrel |
| CN111022781A (en) * | 2019-12-05 | 2020-04-17 | 杭州坦科机械科技有限公司 | Glass fiber reinforced plastic pipeline with hollow wall structure and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multilayer PVC winding pipe Effective date of registration: 20111122 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2011990000447 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120709 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2011990000447 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multilayer PVC winding pipe Effective date of registration: 20120709 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2012990000357 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130207 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2012990000357 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multilayer PVC winding pipe Effective date of registration: 20130207 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2013990000096 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140321 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2013990000096 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multilayer PVC winding pipe Effective date of registration: 20140321 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2014990000188 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Jiahua hi tech Development Zone, Shanxi province Taiyuan city 030006 Street No. 7, block C (International High Shuai science building 11 floor) Patentee after: Shanxi Qingke Hengan Mining New Material Co., Ltd. Address before: 030006, new development building, No. 288, Changzhi Road, Taiyuan hi tech Zone, Shanxi, 4 Patentee before: Shanxi Qingke Hengan Mining New Material Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170809 Granted publication date: 20100519 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Taiyuan branch Pledgor: Shanxi Qingke Hengan Mining New Material Co., Ltd. Registration number: 2014990000188 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
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| CX01 | Expiry of patent term |