CN203823262U - PVC hose for gas extraction - Google Patents
PVC hose for gas extraction Download PDFInfo
- Publication number
- CN203823262U CN203823262U CN201320703525.2U CN201320703525U CN203823262U CN 203823262 U CN203823262 U CN 203823262U CN 201320703525 U CN201320703525 U CN 201320703525U CN 203823262 U CN203823262 U CN 203823262U
- Authority
- CN
- China
- Prior art keywords
- pvc
- gas extraction
- flexible
- pvc hose
- hard
- 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
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 13
- 239000006229 carbon black Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 44
- 239000004800 polyvinyl chloride Substances 0.000 description 44
- 239000000463 material Substances 0.000 description 14
- 239000008188 pellet Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Landscapes
- Revetment (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model relates to the field of plastic hoses and discloses a PVC hose for gas extraction. The PVC hose for gas extraction comprises a soft PVC hose body, a hard PVC framework strip and conductive layers, wherein the hard PVC framework strip is embedded into the soft PVC hose body, and the conductive layers adheres to the outer wall and inner wall of the soft PVC hose body. The PVC hose for gas extraction has the advantage of being good in tubular product tensile resisting strength, a framework is not easily separated from the soft PVC hose body, tubular products do not easily crack, meanwhile the carbon black using amount is reduced, and the production cost is reduced.
Description
Technical field
The utility model relates to plastic hose field, particularly relates to a kind of gas extraction PVC flexible pipe.
Background technique
Mainly contain steel wire winding for gas discharge in mine by connecting hose at present and strengthen flexible pipe, PVC(PVC＝polyvinyl chloride) skeleton flexible pipe, adopt fabric, the cord flexible pipe as framework layer.With regard to existing technology and standard, there are the following problems:
Steel wire, fabric, cord and other non-PVC materials are made the flexible pipe of framework layer, because using material and PVC creep coefficient and coefficient of thermal expansion and contraction to differ larger, under time and temperature action, framework layer easily produces and separates with PVC plastic layer, thereby tubing strength decreased, working life are shortened.
Existing PVC skeleton flexible pipe, though using PVC runner as framework layer, but pvc pipe body is by the single soft material of PVC with conduction and fire retardation, in the material of whole pvc pipe body, add conductive black, the membership that adds in a large number of carbon black raises the holistic cost of pvc pipe, and bonding strength reduces between the material strip of tube forming, tensile strength declines obviously, and tubing is easy to cracking.
Model utility content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of drawing pipe intensity, tubing gas extraction PVC flexible pipe not easy to crack and lower-cost of improving.
(2) technological scheme
In order to solve the problems of the technologies described above, the utility model provides gas extraction PVC flexible pipe, comprise flexible PVC body, hard PVC skeleton bar and conductive layer, described hard PVC skeleton bar embeds the inside of described flexible PVC body, and described conductive layer is attached to outer wall and the inwall of described flexible PVC body.
Wherein, described conductive layer is the flexible PVC layer that adds carbon black.
Wherein, described hard PVC skeleton bar screw arrangement is in the inside of described flexible PVC body.
Wherein, this pvc pipe is wound around to shape for manufacturing by extrusion molding and forms.
(3) beneficial effect
The gas extraction that the utility model provides PVC flexible pipe, has tubing tensile strength good, between skeleton and flexible PVC body, is not easy to separate, and makes tubing advantage not easy to crack, reduces carbon black loading simultaneously, reduces production costs.
Brief description of the drawings
Fig. 1 is longitudinal sectional view of the present utility model;
Fig. 2 is transverse sectional view of the present utility model;
Fig. 3 is for the manufacture of material strip viewgraph of cross-section of the present utility model;
In figure, 1: flexible PVC body; 2: hard PVC skeleton bar; 3: conductive layer; 10: material strip body; 20: hard PVC skeleton bar; 30: conductive layer.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following instance is used for illustrating the utility model, but is not used for limiting scope of the present utility model.
As shown in Fig. 1 to 2, the utility model gas extraction PVC flexible pipe, comprise flexible PVC body 1, hard PVC skeleton bar 2 and conductive layer 3, hard PVC skeleton bar 2 embeds the inside of flexible PVC body 1, and hard PVC skeleton bar 2 screw arrangement are in the inside of flexible PVC body 1.Conductive layer 3 is attached to outer wall and the inwall of flexible PVC body 1.Conductive layer 3 is for adding the flexible PVC layer of carbon black.This pvc pipe only adds carbon black in conductive layer 3, because carbon black has hatred electro ultrafiltration, therefore conductive layer 3 has the effect of conduction.Flexible PVC body 1 does not add the carbon black with electric action, reduces carbon black use amount, cost-saving.Hard PVC skeleton bar 2 is made up of the fire-retardant PVC hard material that does not add plasticizing agent.Hard PVC skeleton bar 2, as skeleton, is not easy to separate between skeleton and flexible PVC body, makes tubing not easy to crack.
This PVC flexible pipe is wound around sizing manufacture by extrusion molding and forms, and its preparation process is as follows: raw material and auxiliary agent are added to batch mixer mixture, then add special Granulation Equipments to extrude formation pellet the good mixed ingredients of mixture.
Adding respectively corresponding extrusion equipment to plastify hard PVC skeleton bar pellet, flexible PVC body pellet and conductive layer pellet extrudes, three kinds of raw materials carry out compound at compound die head, compound rear material strip, material strip as shown in Figure 3 comprises material strip body 10, hard PVC skeleton bar 20 and conductive layer 30, hard PVC skeleton bar 20 is embedded in material strip body 10, conductive layer 30 is attached on the two sides outer wall of material strip body, again by material strip body after torsion machine spiral winding through cooling, bundling spirals, the two sides that does not attach conductive layer 30 is bondd mutually, form finished product.Material strip body 10 does not add carbon black, and the flexible PVC body after extrusion moulding has better bonding strength, improves body intensity.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a gas extraction PVC flexible pipe, it is characterized in that, comprise flexible PVC body, hard PVC skeleton bar and conductive layer, described hard PVC skeleton bar embeds the inside of described flexible PVC body, and described conductive layer is attached to outer wall and the inwall of described flexible PVC body; Described conductive layer is the flexible PVC layer that adds carbon black.
2. gas extraction as claimed in claim 1 PVC flexible pipe, is characterized in that, described hard PVC skeleton bar screw arrangement is in the inside of described flexible PVC body.
3. the gas extraction PVC flexible pipe as described in claim 1 to 2 any one, is characterized in that, this pvc pipe is wound around sizing manufacture by extrusion molding and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703525.2U CN203823262U (en) | 2013-11-08 | 2013-11-08 | PVC hose for gas extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703525.2U CN203823262U (en) | 2013-11-08 | 2013-11-08 | PVC hose for gas extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823262U true CN203823262U (en) | 2014-09-10 |
Family
ID=51478764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320703525.2U Expired - Lifetime CN203823262U (en) | 2013-11-08 | 2013-11-08 | PVC hose for gas extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654759A (en) * | 2017-09-28 | 2018-02-02 | 平乐县顺联管业有限公司 | A kind of soft or hard copolymerization pipes of PVC and preparation method thereof |
-
2013
- 2013-11-08 CN CN201320703525.2U patent/CN203823262U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654759A (en) * | 2017-09-28 | 2018-02-02 | 平乐县顺联管业有限公司 | A kind of soft or hard copolymerization pipes of PVC and preparation method thereof |
| CN107654759B (en) * | 2017-09-28 | 2023-09-29 | 桂林金塑塑胶有限公司 | PVC (polyvinyl chloride) soft and hard copolymerization pipe and manufacturing method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |