CN207648278U - A kind of GRP pipe - Google Patents
A kind of GRP pipe Download PDFInfo
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- CN207648278U CN207648278U CN201720682773.1U CN201720682773U CN207648278U CN 207648278 U CN207648278 U CN 207648278U CN 201720682773 U CN201720682773 U CN 201720682773U CN 207648278 U CN207648278 U CN 207648278U
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- layer
- reinforcing rib
- structural layer
- polyurethane foam
- grp pipe
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Abstract
The utility model discloses a kind of GRP pipes, including：Inner structural layer, including the inner surface and the outer surface, the inner surface form inner wall of the pipe；It is wrapped in the enhancement layer of inner structural layer outer surface；It is wrapped in the outer structural layer of enhancement layer outer surface.The utility model replaces the burning into sand layer that quartz sand is constituted, more existing GRP pipe to has the following advantages with the enhancement layer with special construction：(1) main material of enhancement layer is polyurethane foam and glass fibre, and the weight of the unit length of same thickness cylinder reduces the use value for much increasing pipeline；(2) it will be apparent that the cost of quartz sand is very high, the utility model enhancement layer replaces burning into sand layer, effectively reduces the cost of GRP pipe；(3) mechanical performance of the utility model GRP pipe is more preferable, when especially reinforcing rib is trapezoidal, increases the contact surface with pipeline inner structural layer, the ring stiffness of pipeline is made to greatly improve.
Description
Technical field
The utility model is related to a kind of GRP pipes, are more specifically related to a kind of GRP pipe with enhancement layer.
Background technology
GRP pipe is a kind of lightweight, high-strength, corrosion resistant nonmetal pipeline.It is the glass with resin matrix weight
Fiber is successively wrapped on the core model of rotation by technological requirement, and remote quartz sand of equably spreading is used as folder between the fibers
Layer of sand.Its structural pipe wall is rationally advanced, can give full play to the effect of material, under the premise of meeting use intensity, improves steel
Degree, ensure that the stability and reliability of product.FRP sand tube is not tied with its excellent resistant to chemical etching, high-strength light
Dirt, shock resistance is strong, long with service life compared with common steel tube, and comprehensive cost low is quick for installation, it is safe and reliable the advantages that,
Received by users.Glass is from the characteristics of steel conduit：(1) corrosion resistance：Chemically inert material, excellent corrosion resistance,
And different anticorrosion pipelines can be selected according to pumped (conveying) medium.(2) mechanical strength is big：Water-fast Compressive Strength, proof to external pressure intensity and resistance to
Impact strength it is good and can be as required pressure design manufacture pipeline and pipe fitting.(3) thermal adaptability is strong：Temperature in use model
It encloses：It is less than 250 degrees Celsius more than -70 degrees Celsius, pipeline is not split under Frozen Medium.(4) fluid resistance is small：Inner wall of the pipe is smooth,
The coefficient of roughness 0.0084, under same traffic, caliber can give diminution.(5) light-weight, long lifespan：It is light, transport facility, construction cost
With low, without repair, service life is up to 50 years or more.(6) water quality is kept：It is nontoxic, drinking-water water is conveyed, long-term water can be kept
Matter health.
However, the existing GRP pipe cost for accompanying quartz sand is high, meanwhile, although this pipeline is lighter than common steel tube
It is very much, but the density of quartz sand is relatively large, and the weight of pipeline is still very heavy, difficulty is brought to processing, transport, installation etc.
Degree.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, provide a kind of quality is lighter, mechanical strength more
High GRP pipe.
The purpose of this utility model implements by the following technical programs：
A kind of GRP pipe, including：
Inner structural layer, including the inner surface and the outer surface, the inner surface form inner wall of the pipe；
It is wrapped in the enhancement layer of inner structural layer outer surface；
It is wrapped in the outer structural layer of enhancement layer outer surface.
Preferably, the inner surface of the inner structural layer is additionally provided with liner layer.There are two the effect of liner layer is main：1, prevent
Leakage, can effectively prevent the fluid seepage of conveying；2, ensure inner wall smooth, according to the inner wall roughness of detection GRP pipe
Coefficient is 0.0084, very smooth.
Preferably, (surface density is preferably 30g/m using the fiberglass surfacing mat for being soaked with resin for the liner layer2), leaching
Having the glass fibre knitting felt of resin, (surface density is preferably 400g/m2), being soaked with the grid cloth of resin, (surface density is preferably 65g/
m2)。
Preferably, matcoveredn is arranged in the outer surface of the outer structural layer.The effect of external protection mainly has：1, beautiful；
2, the overall structure of protective conduit；3, anti-aging.
Preferably, the protective layer is made of resin and functional aid.
Preferably, the inner structural layer is using the glass fiber yarn (preferably 2400TEX or 4800TEX) for being soaked with resin.
Preferably, the outer structural layer is using the glass fiber yarn (preferably 2400TEX or 4800TEX) for being soaked with resin.
Preferably, the enhancement layer is constituted by being spaced setting reinforcing rib in polyurethane foam.
Preferably, the volume ratio of the reinforcing rib and the polyurethane foam is (3：7)-(5：5)；Further preferred 4：6.
It is further preferred that the reinforcing rib is annularly wrapped in the outer surface of inner structural layer, on pipeline section, in interior
Wide outer narrow trapezium structure or triangular structure.
It is further preferred that on pipeline section, the reinforcing rib is through polyurethane foam layer, by polyurethane foam
Layer is divided into the trapezium structure or triangular structure of multiple interior narrow outer widths.
It is further preferred that on pipeline section, the reinforcing rib is in the trapezium structure of inner wide and outer narrow, the polyurethane
Foam is in the trapezium structure of interior narrow outer width between two reinforcing ribs.
It is reinforcing rib to be preferably located at pipe ends portion.Such benefit has：1, be conducive to the connection side of pipeline and pipeline
The socket joint of formula connects, and needs certain power ability socket joint good during socket joint；2, on the other hand, it after pipeline completes, needs
Two slots (installation sealing ring) are opened in the position of socket be unfavorable for the close of pipeline connection if exposed reinforcing rib in slot
Feng Xing.The reinforcing rib be impregnated with resin silvalin winding inner structural layer form.That is, polyurethane foam is not in pipeline
Both ends, both ends are composed of resin and glass fiber yarn.
Preferably, the reinforcing rib between polyurethane is wound to inner structural layer appearance from the gap between adjacent polyurethane foam
Face forms.
The utility model advantageous effect：
The effect of the burning into sand layer of existing GRP pipe is to enhance the mechanical strength of pipeline, the utility model apparatus
There are the burning into sand layer that the enhancement layer of special construction replaces quartz sand to constitute, more existing GRP pipe to has the following advantages：
(1) main material of enhancement layer is polyurethane foam and glass fibre, the weight of the unit length of same thickness cylinder
Amount reduces very much, increases the use value of pipeline.
(2) it will be apparent that the cost of quartz sand is very high, the utility model enhancement layer replaces burning into sand layer, effectively reduces glass
The cost of steel conduit.
(3) mechanical performance of the utility model GRP pipe is more preferable, when especially reinforcing rib is trapezoidal, increases and manages
The contact surface of road inner structural layer makes the ring stiffness of pipeline greatly improve.Such as：GRP pipe DN800, technical parameter：Internal pressure
1.0MPa, ring stiffness 20000N/m2For：It is 36.11mm to have the duct thickness of reinforcing rib, and weight is 0.9 ton；Wherein poly- ammonia
Fat thickness is 30mm；The duct thickness of no reinforcing rib is 19.16mm, and weight is 1.3 tons；Quartz sand thickness is 10mm.
Description of the drawings
Fig. 1 is 1 GRP pipe schematic cross-section of the utility model embodiment；
Fig. 2 is 1 GRP pipe schematic cross-section of the utility model embodiment；
Fig. 3 is 1 GRP pipe schematic cross-section of the utility model embodiment；
Fig. 4 is the utility model GRP pipe section schematic diagram；
Wherein, 1- liner layers, 2- inner structural layers, 3- enhancement layers, 31- polyurethane foams, 32- reinforcing ribs, 4- outer structural layers,
5- protective layers.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
In one embodiment of the utility model, the overall structure of the utility model GRP pipe is described, referring to Fig. 1
It is shown, including inner structural layer 2, enhancement layer 3, outer structural layer 4 constitute, enhancement layer 3 is wrapped on the outer surface of inner structural layer 2, outside
Structure sheaf 4 is wrapped on the outer surface of enhancement layer 3.The inner structural layer is by glass fiber yarn (2400TEX or 4800TEX)
It is formed with resin (resin is different according to the difference of medium)；The outer structural layer is that (resin is according to Jie by being soaked with resin
The difference of matter and it is different) glass fiber yarn constitute.The enhancement layer is mainly to be made of polyurethane foam.
It is shown in Figure 2 in one preferred embodiment of the utility model, in the inner surface of inner structural layer 2 is provided with
Lining 1, the liner layer 1 are by fiberglass surfacing mat (surface density 30g/m2), (surface density is glass fibre knitting felt
400g/m2), grid cloth (surface density 65g/m2) and resin (resin is different according to the difference of medium) composition.Combination is
Fiberglass surfacing mat, glass fibre knitting felt or grid cloth are impregnated with resin, fiberglass surfacing mat, the glass of resin will be impregnated with
The fiber knitted felt of glass or grid cloth are pasted onto the inner surface of inner structural layer.There are two the effect of liner layer is main：1, antiseep, can
Effectively to prevent the fluid seepage of conveying；2, ensure inner wall smooth, the inner wall roughness coefficien according to detection GRP pipe is
0.0084, it is very smooth.And in another preferred embodiment, it is shown in Figure 3,4 outer surface of outer structural layer is also provided with protection
Layer 5, the external protection 5 is made of resin and other auxiliary agents.The effect of external protection mainly has：1, beautiful；2, protection pipe
The overall structure in road；3, anti-aging.
It is shown in Figure 4 in one embodiment of the utility model, the enhancement layer 3 of GRP pipe has been carried out in detail
Description.The enhancement layer is constituted by being spaced setting reinforcing rib 32 in polyurethane foam 31.Polyurethane foam does not have pole
Limiting thickness can be mainly theoretically different according to ring stiffness, the intensity difference of pipeline with infinite thickness, thickness；Polyurethane foam
Layer indefinitely long.Interval increases reinforcing rib, improves the ring stiffness of pipeline.
The reinforcing rib 32 is annularly wrapped in the outer surface of inner structural layer, is in the ladder of inner wide and outer narrow on pipeline section
Shape structure or triangular structure, preferably trapezium structure.Reinforcing rib is trapezoidal, increases the contact surface with pipeline inner structural layer, makes
The ring stiffness of pipeline greatly improves.Preferably, on pipeline section, the reinforcing rib is through polyurethane foam layer, by poly- ammonia
Fat vacuole foam layer is divided into the trapezium structure or triangular structure of multiple interior narrow outer widths.It is reinforcing rib positioned at pipe ends portion.It is described
Reinforcing rib be impregnated with resin silvalin winding inner structural layer form.That is, polyurethane foam is or not the both ends of pipeline, two
End is composed of resin and glass fiber yarn.Such benefit has：1, be conducive to the connection type of pipeline and pipeline
Socket joint connects, and needs certain power ability socket joint good during socket joint；2, on the other hand, it after pipeline completes, needs
Two slots (installation sealing ring) are opened in the position of socket, if exposed reinforcing rib in slot, are unfavorable for the leakproofness of pipeline connection.
Reinforcing rib between polyurethane is wound to inner structural layer outer surface from the gap between adjacent polyurethane foam and forms.
In one embodiment of the utility model, the ratio of polyurethane and reinforcing rib in enhancement layer is studied.
The volume ratio of the reinforcing rib and the polyurethane foam is (3：7)-(5：5)；Such as：3：7,4：6,5：5 etc., it is further excellent
Select 4：6.
Embodiment 1：
As shown in Figure 1, a kind of GRP pipe, including inner structural layer 2, enhancement layer 3, outer structural layer 4 are constituted, enhancement layer 3
It is wrapped on the outer surface of inner structural layer 2, outer structural layer 4 is wrapped on the outer surface of enhancement layer 3.The inner structural layer is by glass
Glass silvalin (2400TEX or 4800TEX) and resin (resin is different according to the difference of medium) composition；The enhancement layer is
It is made of resin, glass fiber yarn and polyurethane foam；The outer structural layer be by glass fiber yarn (2400TEX or
4800TEX) formed with resin (resin is different according to the difference of medium).The enhancement layer is mainly by polyurethane foam structure
At.
Embodiment 2：
It is shown in Figure 2, described in embodiment 1 on the basis of GRP pipe, it is provided in the inner surface of inner structural layer 2
Liner layer 1, the liner layer 1 are by fiberglass surfacing mat (surface density 30g/m2), (surface density is glass fibre knitting felt
400g/m2), grid cloth (surface density 65g/m2) and resin (resin is different according to the difference of medium) composition.
Embodiment 3：
It is shown in Figure 3, matcoveredn 5 also is set in 4 outer surface of outer structural layer, the external protection 5 is by resin
(according to using) and other auxiliary agents form.
Embodiment 4：
The present embodiment is as scheme is further improved, and shown in Figure 4, the enhancement layer is by polyurethane foam 31
Middle interval setting reinforcing rib 32 is constituted.Polyurethane foam 31 does not have thickness limit, can be mainly with infinite thickness, thickness theoretically
It is different according to the ring stiffness of pipeline, intensity difference；Polyurethane foam indefinitely long.Interval increases reinforcing rib, improves
The ring stiffness of pipeline.The reinforcing rib 32 is annularly wrapped in the outer surface of inner structural layer 2, is in inner width on pipeline section
Outer narrow trapezium structure or triangular structure, preferably trapezium structure.Reinforcing rib 32 is trapezoidal, is increased and pipeline inner structural layer 2
Contact surface, so that the ring stiffness of pipeline is greatly improved.Preferably, the reinforcing rib steeps on pipeline section through polyurethane
Polyurethane foam layer 31 is divided into the trapezium structure or triangular structure of multiple interior narrow outer widths by foam layer 31.Positioned at pipe ends
Portion is reinforcing rib 32.The reinforcing rib be impregnated with resin silvalin winding inner structural layer form.That is, polyurethane foam
Not at the both ends of pipeline, both ends are composed of resin and glass fiber yarn.
Embodiment 5：
The present embodiment grinds the ratio of polyurethane and reinforcing rib in enhancement layer as scheme is further improved
Study carefully.The volume ratio of the reinforcing rib and the polyurethane foam is (3：7)-(5：5)；Such as：3：7,4：6,5：5 etc., further
It is preferred that 4：6.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (10)
1. a kind of GRP pipe, it is characterised in that：Including：
Inner structural layer, including the inner surface and the outer surface, the inner surface form inner wall of the pipe；
It is wrapped in the enhancement layer of inner structural layer outer surface；
It is wrapped in the outer structural layer of enhancement layer outer surface；
The enhancement layer is constituted by being spaced setting reinforcing rib in polyurethane foam, and the reinforcing rib is annularly wrapped in interior knot
The outer surface of structure layer is in the trapezium structure or triangular structure of inner wide and outer narrow on pipeline section.
2. GRP pipe according to claim 1, it is characterised in that：In the inner surface of the inner structural layer is additionally provided with
Lining, the liner layer, which uses, to be soaked with the fiberglass surfacing mat of resin, is soaked with the glass fibre knitting felt of resin or is soaked with tree
The grid cloth of fat.
3. GRP pipe according to claim 1, it is characterised in that：The outer surface of the outer structural layer is provided with protection
Layer, the protective layer are made of resin and functional aid.
4. GRP pipe according to claim 1, it is characterised in that：The inner structural layer is using the glass for being soaked with resin
Silvalin；The outer structural layer is using the glass fiber yarn for being soaked with resin.
5. GRP pipe according to claim 1, it is characterised in that：The body of the reinforcing rib and the polyurethane foam
Product is than being (3：7)-(5：5).
6. GRP pipe according to claim 5, it is characterised in that：The body of the reinforcing rib and the polyurethane foam
Product is than being 4：6.
7. GRP pipe according to claim 1, it is characterised in that：On pipeline section, the reinforcing rib through
Polyurethane foam layer is divided into the trapezium structure or triangular structure of multiple interior narrow outer widths by polyurethane foam layer.
8. GRP pipe according to claim 1, it is characterised in that：On pipeline section, the reinforcing rib is in inner width
Outer narrow trapezium structure, the polyurethane foam are in the trapezium structure of interior narrow outer width between two reinforcing ribs.
9. GRP pipe according to claim 1, it is characterised in that：It is reinforcing rib positioned at pipe ends portion.
10. according to claim 1-9 any one of them GRP pipes, it is characterised in that：The reinforcing rib is to be impregnated with resin
Silvalin winding inner structural layer form, in the reinforcing rib between polyurethane is wound to from the gap between adjacent polyurethane foam
Structure sheaf outer surface forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720682773.1U CN207648278U (en) | 2017-06-13 | 2017-06-13 | A kind of GRP pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720682773.1U CN207648278U (en) | 2017-06-13 | 2017-06-13 | A kind of GRP pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207648278U true CN207648278U (en) | 2018-07-24 |
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ID=62886403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720682773.1U Expired - Fee Related CN207648278U (en) | 2017-06-13 | 2017-06-13 | A kind of GRP pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN207648278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414998A (en) * | 2021-07-12 | 2021-09-21 | 重庆泛锐科技有限公司 | High-strength heat-insulation composite board and preparation method thereof |
-
2017
- 2017-06-13 CN CN201720682773.1U patent/CN207648278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414998A (en) * | 2021-07-12 | 2021-09-21 | 重庆泛锐科技有限公司 | High-strength heat-insulation composite board and preparation method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |