CN205371834U - Prevent pressing natural gas spiral weld pipe - Google Patents
Prevent pressing natural gas spiral weld pipe Download PDFInfo
- Publication number
- CN205371834U CN205371834U CN201620070189.6U CN201620070189U CN205371834U CN 205371834 U CN205371834 U CN 205371834U CN 201620070189 U CN201620070189 U CN 201620070189U CN 205371834 U CN205371834 U CN 205371834U
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- Prior art keywords
- natural gas
- welded pipe
- against pressure
- gas spiral
- spiral welded
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Abstract
The utility model discloses a prevent pressing natural gas spiral weld pipe, include: the body, its cylindric structure that forms for the both sides welding of curling by the ribbon spiral, the buffer layer, it is a rectangular area and extends the fixed outside helical structure who forms who sets up at the body along the axial spiral of body, rectangular area is the elasticity material, rectangular area is the transversal solid long bar -type texture of semioval that personally submits, its one side that is the rectangle with the body subsides are established, strengthening the piece for five, strengthening the piece for arbitrary one, it is the arc, and its length is unanimous with the body, and its cambered surface is with the body phase -match so that five outsides of strengthening the equidistant fixed setting of the piece parallel tubes body at the buffer layer, the anticorrosive coating, it is the annular, and the anticorrosive coating cover is established in the outside of strengthening the piece, and the anticorrosive coating is including the sponge rubber layer, EP rubbers layer and the epoxy coal pitch coating that set gradually from inside to outside, the heat preservation, it is filled between anticorrosive coating and body. The utility model discloses a prevent pressing natural gas spiral weld pipe have prevent pressing, function such as corrosion -resistant, heat preservation.
Description
Technical field
This utility model relates to natural-gas transfer pipeline field.More specifically, this utility model relates to a kind of natural gas spiral welded pipe against pressure.
Background technology
Modern natural gas transportation pipeline is generally many to be formed by connecting through electric welding by steel pipe, steel pipe has seamless pipe, spiral seam pipe, dividing of straight-seam pipes, general seamless pipe is applicable to small-bore pipeline, spiral seam pipe and straight-seam pipes are applicable to large diameter pipeline, straight-seam pipes is divided into ERW and spiral welded pipe, the strength ratio straight-seam pipes of spiral welded pipe is high, it is applicable to process bigbore welded tube, but bore is more big, when suffering external pressure, once compressive deformation can affect the gas flow in transportation, the too low conveying capacity that also can directly affect natural gas of temperature, most steel pipe is only outer protects insulating barrier, although manufacturing simple, but often lead in natural gas transportation process, usually there will be leakage, the problems such as noise, puzzlement is brought to the life of people.
Utility model content
A purpose of the present utility model is to solve at least the above, and provides the advantage that at least will be described later.
This utility model is it is also an object that provide a kind of natural gas spiral welded pipe against pressure, by arranging the cushion with elasticity, helically structure outside body, to resist external pressure, prevent body from deforming, by arranging reinforced sheet, play dividing potential drop, it is prevented that local compression and make the local compression of cushion excessive, thus better playing effect against pressure.
In order to realize according to these purposes of the present utility model and further advantage, it is provided that a kind of natural gas spiral welded pipe against pressure, including:
Body, it is by the cylindrical-shaped structure of the curling two-sided welding of ribbon spiral；
Cushion, it is a long strip extends, along the axial screw of described body, the outside helical structure formed being fixedly installed on described body, described long strip is elastic material, and described long strip is cross section is half elliptic solid string configuration, and its rectangular one side is sticked with described body；
Five pieces of reinforced sheets, for any one reinforced sheet, it is curved, and its length is consistent with described body, and its cambered surface matches with described body so that the parallel described body of described five pieces of reinforced sheets is fixedly installed on the outside of described cushion at equal intervals；
Anticorrosive coat, it is annular, and described anticorrosive coat is set in the outside of described reinforced sheet, and described anticorrosive coat includes the foam rubber layer, EP rubbers layer and the epoxy coal tar coating that set gradually from inside to outside；
Heat-insulation layer, it is filled between described anticorrosive coat and described body, and described heat-insulation layer is that polyurethane rigid foam material is made.
Preferably, described natural gas spiral welded pipe against pressure, the inwall of described body is provided with antiseepage rete, and described antiseepage rete is that high-density polyethylene material is made, and the outer wall of described body is provided with polyurethane coating.
Preferably, described natural gas spiral welded pipe against pressure, in described cushion between any two adjoining spiral pitch is described tube wall diameter 1/2.
Preferably, described natural gas spiral welded pipe against pressure, the thickness of described reinforced sheet is 1-1.2mm, and the radian of described reinforced sheet is π/4.
Preferably, described natural gas spiral welded pipe against pressure, the thickness of described anticorrosive coat is 1.4-1.8cm.
Preferably, described natural gas spiral welded pipe against pressure, the thickness of described long strip is the 1/15-1/10 of described inboard wall of tube body diameter.
Preferably, described natural gas spiral welded pipe against pressure, described steel band is low-alloy structural steel.
Preferably, described natural gas spiral welded pipe against pressure, described long strip is made for thermoplastic polyurethane material.
This utility model at least includes following beneficial effect:
Natural gas spiral welded pipe against pressure of the present utility model, by arranging the cushion with elasticity, helically structure outside body, to resist external pressure, it is prevented that body deforms, by arranging reinforced sheet, play dividing potential drop, it is prevented that local compression and make the local compression of cushion excessive, thus better playing effect against pressure, and between body and anticorrosive coat except cushion with reinforced sheet, also fill up heat-insulation layer, both played the effect of insulation, also there is the effect of noise reduction；Being relatively large in diameter of general spiral welded pipe; too much overcoat is added if outside; although better protective effect can be played; but cost price is too high; the occupation of land volume simultaneously also resulting in spiral welded pipe excessively increases, and of the present utility model namely plays effect against pressure, simple in construction in the outside of body with cushion and reinforced sheet; easy to process, and use material few.
Part is embodied by further advantage of the present utility model, target and feature by description below, and part also will by being understood by those skilled in the art research of the present utility model and practice.
Accompanying drawing explanation
Fig. 1 is the sectional view of natural gas spiral welded pipe against pressure of the present utility model；
Fig. 2 is the structural representation of an embodiment of the present utility model；
Fig. 3 is the structural representation of long strip.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
It should be noted that experimental technique described in following embodiment, if no special instructions, it is conventional method, described reagent and material, if no special instructions, all commercially obtains；In description of the present utility model, term " transverse direction ", " longitudinal direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, be not instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
As Figure 1-3, this utility model provides a kind of natural gas spiral welded pipe against pressure, including:
Body 1, it is by the cylindrical-shaped structure of the curling two-sided welding of ribbon spiral；
Cushion 2, it is a long strip extends, along the axial screw of described body 1, the outside helical structure formed being fixedly installed on described body 1, described long strip is elastic material, described long strip is cross section be half elliptic solid string configuration as shown in Figure 3, its rectangular one side is sticked with described body 1, make so that receiving extruding outside spiral welded pipe, long strip top elder generation stress, cushion deformation is made to make body against pressure, after extruding force disappears, cushion can resilience, so continuing to play effect against pressure；
Five pieces of reinforced sheets 3, for any one reinforced sheet 3, it is curved, its length is consistent with described body 1, its cambered surface matches with described body 1 so that Fig. 2 is seen in the outside that the described parallel described body of five pieces of reinforced sheets 3 is fixedly installed on described cushion 2 at equal intervals, when reinforced sheet is by external force extruding, local pressure is dispersed on the cushion of longer a section, it is possible to the cushion pressurized preventing local compression is excessive；
Anticorrosive coat 5, it is annular, and described anticorrosive coat 5 is set in the outside of described reinforced sheet 3, and described anticorrosive coat 5 includes the foam rubber layer, EP rubbers layer and the epoxy coal tar coating that set gradually from inside to outside；Sponge rubber has that matter is soft, flexible, not easily heat conduction, shock absorbing, sound insulation effect, EP rubbers is ageing-resistant, corrosion-resistant, density is low, and epoxide coal bituminous have the performances such as the water resistant permeability of excellence, antimicrobial erosion, resistance to temperature difference cataclysm；
Heat-insulation layer 4, it is filled between described anticorrosive coat 5 and described body 1, and described heat-insulation layer 4 is made for polyurethane rigid foam material.Wherein polyurethane rigid foam material can concreting in site molding, easy to be fast, there is the effect of waterproof, anticorrosion, insulation.
In another kind of technical scheme, described natural gas spiral welded pipe against pressure, the inwall of described body 1 is provided with antiseepage rete, and described antiseepage rete is that high-density polyethylene material is made, and the outer wall of described body 1 is provided with polyurethane coating.So the inner and outer wall of body can be played direct protection, it is prevented that body seepage or corrosion.
In another kind of technical scheme, described natural gas spiral welded pipe against pressure, in described cushion 2 between any two adjoining spiral pitch is described body 1 outer diameter 1/2, pitch is excessive, and local anti-pressure ability is poor, and pitch is too small, causing wastage of material, cost increases.
In another kind of technical scheme; described natural gas spiral welded pipe against pressure; the thickness of described reinforced sheet 3 is 1-1.2mm, and the radian of described reinforced sheet 3 is π/4, and five pieces of reinforced sheets radian altogether occupies the 5/8 of tube wall; protected area is suitable for; if reinforced sheet radian is too small, after reinforced sheet pressurized, voltage dividing ability is poor, if radian is excessive; then cost increases, and causes unnecessary waste.
In another kind of technical scheme, described natural gas spiral welded pipe against pressure, the thickness of described anticorrosive coat 5 is 1.4-1.8cm.
In another kind of technical scheme, described natural gas spiral welded pipe against pressure, the thickness of described long strip is the 1/15-1/10 of described inboard wall of tube body diameter, the thickness of long strip mentioned here is the peak height to rectangular one end of semiellipse arc, is also the distance between reinforced sheet and body.
In another kind of technical scheme, described natural gas spiral welded pipe against pressure, described steel band is low-alloy structural steel.
In another kind of technical scheme, described natural gas spiral welded pipe against pressure, described long strip is made for thermoplastic polyurethane material.
Although embodiment of the present utility model is disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, this utility model is not limited to specific details and shown here as the legend with description.
Claims (8)
1. a natural gas spiral welded pipe against pressure, it is characterised in that including:
Body, it is by the cylindrical-shaped structure of the curling two-sided welding of ribbon spiral；
Cushion, it is a long strip extends, along the axial screw of described body, the outside helical structure formed being fixedly installed on described body, described long strip is elastic material, and described long strip is cross section is half elliptic solid string configuration, and its rectangular one side is sticked with described body；
Five pieces of reinforced sheets, for any one reinforced sheet, it is curved, and its length is consistent with described body, and its cambered surface matches with described body so that the parallel described body of described five pieces of reinforced sheets is fixedly installed on the outside of described cushion at equal intervals；
Anticorrosive coat, it is annular, and described anticorrosive coat is set in the outside of described reinforced sheet, and described anticorrosive coat includes the foam rubber layer, EP rubbers layer and the epoxy coal tar coating that set gradually from inside to outside；
Heat-insulation layer, it is filled between described anticorrosive coat and described body, and described heat-insulation layer is that polyurethane rigid foam material is made.
2. natural gas spiral welded pipe against pressure as claimed in claim 1, it is characterised in that the inwall of described body is provided with antiseepage rete, described antiseepage rete is that high-density polyethylene material is made, and the outer wall of described body is provided with polyurethane coating.
3. natural gas spiral welded pipe against pressure as claimed in claim 2, it is characterised in that in described cushion between any two adjoining spiral pitch is described tube wall diameter 1/2.
4. natural gas spiral welded pipe against pressure as claimed in claim 3, it is characterised in that the thickness of described reinforced sheet is 1-1.2mm, and the radian of described reinforced sheet is π/4.
5. natural gas spiral welded pipe against pressure as claimed in claim 4, it is characterised in that the thickness of described anticorrosive coat is 1.4-1.8cm.
6. natural gas spiral welded pipe against pressure as claimed in claim 5, it is characterised in that the thickness of described long strip is the 1/15-1/10 of described inboard wall of tube body diameter.
7. natural gas spiral welded pipe against pressure as claimed in claim 6, it is characterised in that described steel band is low-alloy structural steel.
8. natural gas spiral welded pipe against pressure as claimed in claim 7, it is characterised in that described long strip is made for thermoplastic polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070189.6U CN205371834U (en) | 2016-01-25 | 2016-01-25 | Prevent pressing natural gas spiral weld pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070189.6U CN205371834U (en) | 2016-01-25 | 2016-01-25 | Prevent pressing natural gas spiral weld pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371834U true CN205371834U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620070189.6U Expired - Fee Related CN205371834U (en) | 2016-01-25 | 2016-01-25 | Prevent pressing natural gas spiral weld pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN205371834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451194A (en) * | 2016-08-10 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Insulating shielding case for ground potential live working |
-
2016
- 2016-01-25 CN CN201620070189.6U patent/CN205371834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451194A (en) * | 2016-08-10 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Insulating shielding case for ground potential live working |
| CN106451194B (en) * | 2016-08-10 | 2019-04-30 | 国网浙江省电力公司金华供电公司 | Insulated shielding cover for earth potential live operation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20170125 |