CN214789521U - Pipeline non-excavation buffering antidetonation restoration layer structure - Google Patents
Pipeline non-excavation buffering antidetonation restoration layer structure Download PDFInfo
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- CN214789521U CN214789521U CN202120600809.3U CN202120600809U CN214789521U CN 214789521 U CN214789521 U CN 214789521U CN 202120600809 U CN202120600809 U CN 202120600809U CN 214789521 U CN214789521 U CN 214789521U
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Abstract
The utility model relates to the technical field of pipeline non-excavation restoration, in particular to a pipeline non-excavation buffering anti-seismic restoration layer structure, which comprises a first impregnation layer, a fiber base layer, a second impregnation layer, a buffer layer and a first curing layer which are sequentially connected, wherein the first impregnation layer, the fiber base layer, the second impregnation layer, the buffer layer and the first curing layer are all arranged in a tubular shape, and the diameters of the first impregnation layer, the fiber base layer, the second impregnation layer, the buffer layer and the first curing layer are sequentially reduced; first flooding layer and second flooding layer are the resin layer that has the stickness, and the fibre basic unit is the thin layer basic unit that soft materials formed, and the buffer layer includes a plurality of bolster that are used for the shock attenuation buffering, and the first cured layer is the stereoplasm tubular layer that forms after thermosetting resin is heated the solidification. The application has the effect of improving the anti-deformation capability of the repair layer structure.
Description
Technical Field
The application relates to the technical field of trenchless repairing of pipelines, in particular to a trenchless buffering anti-seismic repairing layer structure of a pipeline.
Background
The trenchless pipeline repairing technology is a underground pipeline repairing technology widely used in the world at present, wherein CIPP (in situ solidification) is one of the pipeline trenchless repairing technologies and is the most widely used underground pipeline trenchless repairing method in the world so far.
The principle of CIPP is as follows: after the outer layer of the lining pipe is coated with the polymer coating, the lining pipe is soaked in the polymer with thermosetting property, and then the lining pipe is turned into the pipeline to be repaired through water gravity or compressed air pressure; and after the lining pipe is installed in the pipeline to be repaired, heating the polymer to solidify the polymer, and realizing the molding of a new pipeline so as to finish the repairing process.
In view of the above-mentioned related art, the inventors believe that the pipe formed by the cured polymer has poor deformation resistance, and the repaired underground pipe is prone to deformation and secondary cracking when subjected to severe vibration (such as earthquake), thereby shortening the service life of the repaired underground pipe.
SUMMERY OF THE UTILITY MODEL
In order to improve the anti deformability of restoration layer structure, this application provides a pipeline non-excavation buffering antidetonation restoration layer structure.
The application provides a pipeline non-excavation buffering antidetonation restoration layer structure adopts following technical scheme:
the trenchless buffering anti-seismic repairing layer structure for the pipeline comprises a first impregnation layer, a fiber base layer, a second impregnation layer, a buffer layer and a first curing layer which are sequentially connected, wherein the first impregnation layer, the fiber base layer, the second impregnation layer, the buffer layer and the first curing layer are all arranged in a tubular shape, and the diameters of the first impregnation layer, the fiber base layer, the second impregnation layer, the buffer layer and the first curing layer are sequentially reduced; first flooding layer with the resin layer of second flooding layer for having the stickness, the fibre basic unit is the thin layer basic unit that soft materials formed, the buffer layer includes a plurality of bolster that are used for the shock attenuation buffering, the first cured layer is the stereoplasm tubular layer that thermosetting resin formed after being heated the solidification.
By adopting the technical scheme, after the fiber base layer is filled into the pipeline to be repaired as the adhesion base layer, the fiber base layer is unfolded to be filled with the inner wall of the pipeline to be repaired by a special technology such as inflation or water filling, and then the first curing layer is heated, so that the first curing layer is cured to form the hard tubular layer and provide shaping support for the repairing layer structure. When the repaired underground pipeline is in a strong vibration state, the buffer layer which is arranged between the original pipeline and the first curing layer and consists of the buffer parts can weaken the vibration effect transmitted from the original pipeline to the first curing layer, so that the longitudinal shearing force born by the first curing layer is reduced; meanwhile, the fiber base layer has certain toughness, so that the fiber base layer coated outside the first curing layer can reduce the transverse shearing force borne by the first curing layer. In conclusion, the arrangement of the buffer layer and the fiber base layer improves the capability of the first cured layer to resist longitudinal shear force and transverse shear force, thereby improving the deformation resistance of the first cured layer.
Optionally, a second cured layer is arranged between the second impregnation layer and the buffer member, the second cured layer is a hard tubular layer formed by curing thermosetting resin under heating, and the buffer member is connected between the second cured layer and the first cured layer.
Through adopting above-mentioned technical scheme, the bolster is connected and can be made the connection of bolster more firm between second solidified layer and first solidified layer to the resistance to deformation ability of second solidified layer and first solidified layer has further been improved.
Optionally, the buffer has elasticity.
Through adopting above-mentioned technical scheme, have elastic bolster can further improve the resistance to deformation ability of first solidified layer and second solidified layer.
Optionally, the bolster includes first supporting part, second supporting part and connecting portion, first supporting part with the second supporting part all is the chevron shape setting, connecting portion connect in first supporting part with between the second supporting part, first supporting part is kept away from the one end of connecting portion with first solidification layer is connected, the second supporting part is kept away from the one end of connecting portion with the second solidification layer is connected.
Through adopting above-mentioned technical scheme, but be first supporting part and the second supporting part that the chevron shape set up and have elastically deformable's space for the bolster has the effect of buffering elimination vibrations.
Optionally, the first supporting portion and the second supporting portion are arranged vertically.
Through adopting above-mentioned technical scheme, be perpendicular first supporting part and the second supporting part that sets up and can increase the area of contact of bolster and first solidified layer and second solidified layer to improve the stability that the bolster is connected with first solidified layer, second solidified layer.
Optionally, the first supporting portion, the second supporting portion and the connecting portion are integrally injection-molded by an elastic polymer.
Through adopting above-mentioned technical scheme, integrative injection moulding's bolster has higher intensity to the life of extension restoration layer structure.
Optionally, the buffer is a spring.
Optionally, the first impregnation layer and the second impregnation layer are both epoxy resin layers, the first cured layer is a vinyl resin layer, and the second cured layer is a polyester resin layer.
By adopting the technical scheme, the epoxy resin layer has higher viscosity, and the stability of the fiber base layer adhered to the inner wall of the original pipeline can be improved; the polyester resin layer and the vinyl resin layer have higher hardness and strong pressure resistance, and can ensure that the water pressure flowing through the pipeline is normal; the vinyl resin layer has excellent corrosion resistance, and can improve the corrosion resistance of the repair layer structure when being used as an inner layer directly contacted with water flow, thereby prolonging the service life of the repaired pipeline.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the fiber base layer and the buffer layer can improve the deformation resistance of the pipeline repaired by the in-situ curing method, so that the service life of the repaired underground pipeline is prolonged;
2. the buffer piece is arranged between the first curing layer and the second curing layer, so that the connection stability of the buffer piece in the repairing layer structure can be improved, the buffer effect realization capability of the buffer piece is improved, and the deformation resistance capability of the repairing layer structure is improved;
3. the selected elastic buffer piece can improve the buffering effect of the buffer piece, so that the deformation resistance of the repairing layer structure is further improved.
Drawings
Fig. 1 is a cross-sectional view of a trenchless buffering anti-seismic repair layer structure of a pipeline in embodiment 1 of the present application.
Fig. 2 is a schematic structural view of a buffer in embodiment 1 of the present application.
Fig. 3 is a cross-sectional view of a trenchless buffering anti-seismic repair layer structure of a pipeline in embodiment 2 of the present application.
Description of reference numerals: 1. a first impregnation layer; 2. glass fiber cloth; 3. a second impregnation layer; 4. a polyester resin layer; 5. a buffer layer; 51. a buffer member; 511. a first support section; 512. a connecting portion; 513. a second support portion; 6. a vinyl resin layer; 7. a spring.
Detailed Description
The present application is described in further detail below with reference to FIGS. 1-3 and examples 1-2.
The embodiment of the application discloses pipeline non-excavation buffering antidetonation restoration layer structure.
Example 1
Referring to fig. 1, the trenchless buffering anti-seismic repair layer structure for the pipeline comprises a first impregnation layer 1, a fiber base layer, a second impregnation layer 3, a second curing layer, a buffer layer 5 and a first curing layer which are sequentially arranged. After the repair layer is formed, the first impregnation layer 1, the fiber base layer, the second impregnation layer 3, the second curing layer, the buffer layer 5 and the first curing layer are adapted to the shape of the pipeline to be repaired, namely the first impregnation layer 1, the fiber base layer, the second impregnation layer 3, the second curing layer, the buffer layer 5 and the first curing layer are all in tubular arrangement. Wherein, the diameter of first impregnated layer 1, the fibre basic unit, second impregnated layer 3, the second cured layer, buffer layer 5 and the first cured layer reduces in proper order for the inner wall cladding of first impregnated layer 1 and laminating fibre basic unit's outer wall, the inner wall cladding of fibre basic unit and laminating second impregnated layer 3's outer wall, the inner wall cladding of second impregnated layer 3 and laminating second cured layer's outer wall, the inner wall cladding of the second cured layer and laminating buffer layer 5's outer wall, buffer layer 5's inner wall cladding and laminating first cured layer's outer wall.
Referring to fig. 1, the first impregnated layer 1 and the second impregnated layer 3 are both adhesive resin layers, and the first impregnated layer 1 and the second impregnated layer 3 may be the same resin layer or different resin layers. Specifically, in the present embodiment, each of the first impregnated layer 1 and the second impregnated layer 3 is an epoxy resin layer impregnated with the epoxy resin E-44.
Referring to fig. 1, the fiber base layer is a soft material layer and is used as an adherend before another layer is heated and cured. Further, the fiber substrate is a glass fiber cloth 2, and the thickness of the glass fiber cloth 2 should be within 2-3mm, specifically, in this embodiment, the thickness of the glass fiber cloth 2 is 2 mm. The glass fiber cloth 2 is selected as the fiber base layer, so that the tensile resistance of the formed repairing layer structure can be improved.
Referring to fig. 1, the first cured layer and the second cured layer are both thermosetting resin layers, so that the first cured layer and the second cured layer can form a rigid tubular structure after being cured by heat. Specifically, in this embodiment, it is preferable that 345 saturated polyester resin is applied as a coating material to the surface of the second impregnated layer 3 to form the polyester resin layer 4, and 901 vinyl ester resin is applied as a coating material to the surface of the cushion layer 5 to form the vinyl resin layer 6.
Referring to fig. 1 and 2, the buffer layer 5 is composed of a plurality of fine buffers 51 having elasticity. Specifically, in the present embodiment, the cushion member 51 includes a first support portion 511, a connection portion 512, and a second support portion 513. The first supporting portion 511 and the second supporting portion 513 have the same shape and are arranged in a herringbone shape, so that the first supporting portion 511 and the second supporting portion 513 both have a space structure that is elastically deformed. The first support portion 511 and the second support portion 513 are fixedly connected through the connection portion 512, and specifically, an opening of the first support portion 511 is disposed opposite to an opening of the second support portion 513, so that the opening of the first support portion 511 can face the vinyl resin layer 6 and be fixedly connected with the vinyl resin layer 6, and an opening of the second support portion 513 can face the polyester resin layer 4 and be fixedly connected with the polyester resin layer 4.
Referring to fig. 1 and 2, a plane of the first support portion 511 is perpendicular to a plane of the second support portion 513, and a total length of the first support portion 511, the connection portion 512, and the second support portion 513 is about 1mm longer than a thickness of the glass cloth 2. In order to improve the connection stability of the first support part 511 and the second support part 513, the first support part 511, the connection part 512 and the second support part 513 are integrally injection molded by elastic polymer material, and specifically, in this embodiment, the first support part 511, the connection part 512 and the second support part 513 are injection molded by TPU material in a corresponding mold.
The trenchless buffering anti-seismic repair layer structure of the pipeline in the embodiment 1 can be prepared by the following steps:
s1, dipping the glass fiber cloth 2 in epoxy resin E-44 for 10min to ensure that the epoxy resin E-44 is attached to the surface of the glass fiber cloth 2; then coating 345 a layer of saturated polyester resin on one side of the glass fiber cloth 2 with the epoxy resin E-44 attached to the surface; then uniformly sprinkling a plurality of buffer members 51 on the surface of 345 saturated polyester resin; finally, coating a layer of 901 vinyl ester resin on the surface of the 345 saturated polyester resin on which the buffer 51 is scattered to obtain a repair cloth bag;
s2, sleeving an air bag on the surface of the repairing cloth bag, then turning the repairing cloth bag and the air bag inside and outside, kneading the repairing cloth bag and the air bag into a cluster, then inserting the cluster into the pipeline to be repaired from the crack of the pipeline to be repaired, and then inflating the air bag to ensure that the repairing cloth bag extends and fills the whole pipeline to be repaired;
and S3, deflating the air bag, taking out the air bag, heating the repair cloth bag to cure the epoxy resin E-44, 345 saturated polyester resin and 901 vinyl ester resin by heating, and forming a first impregnation layer 1, a second impregnation layer 3, a first curing layer and a second curing layer, thereby obtaining a complete repair layer structure.
Example 2
Referring to fig. 3, the difference from embodiment 1 is that the cushion member 51 is a spring 7, and one end of the spring 7 is fixedly connected to the first cured layer and the other end is fixedly connected to the second cured layer.
In the case of repairing, the spring 7 is inserted 345 vertically on the saturated polyester resin.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a non-excavation buffering antidetonation restoration layer structure of pipeline which characterized in that: the fiber-reinforced plastic composite material comprises a first impregnation layer (1), a fiber base layer, a second impregnation layer (3), a buffer layer (5) and a first curing layer which are sequentially attached, wherein the first impregnation layer (1), the fiber base layer, the second impregnation layer (3), the buffer layer (5) and the first curing layer are all arranged in a tubular shape, and the diameters of the first impregnation layer (1), the fiber base layer, the second impregnation layer (3), the buffer layer (5) and the first curing layer are sequentially reduced;
first flooding layer (1) with second flooding layer (3) are the resin layer that has the stickness, the fibre basic unit is the thin layer basic unit that soft materials formed, buffer layer (5) include a plurality of bolster (51) that are used for the shock attenuation buffering, the first solidification layer is the stereoplasm tubular layer that forms after thermosetting resin is heated the solidification.
2. The trenchless buffering earthquake-resistant repairing layer structure for the pipeline as claimed in claim 1, wherein: a second cured layer is arranged between the second impregnation layer (3) and the buffer piece (51), the second cured layer is a hard tubular layer formed by thermosetting resin after being cured by heating, and the buffer piece (51) is connected between the second cured layer and the first cured layer.
3. The trenchless buffering earthquake-resistant repairing layer structure for the pipeline as claimed in claim 2, wherein: the buffer member (51) has elasticity.
4. The trenchless buffering earthquake-resistant repairing layer structure for the pipeline as claimed in claim 3, wherein: the buffer piece (51) comprises a first supporting portion (511), a second supporting portion (513) and a connecting portion (512), the first supporting portion (511) and the second supporting portion (513) are arranged in a herringbone mode, the connecting portion (512) is connected between the first supporting portion (511) and the second supporting portion (513), one end of the connecting portion (512) is far away from the first supporting portion (511) and is connected with the first curing layer, and one end of the connecting portion (512) is far away from the second supporting portion (513) and is connected with the second curing layer.
5. The trenchless buffering earthquake-resistant repairing layer structure for the pipeline as claimed in claim 4, wherein: the first support part (511) is arranged perpendicular to the second support part (513).
6. The trenchless buffering earthquake-resistant repairing layer structure for the pipeline as claimed in claim 5, wherein: the first support portion (511), the second support portion (513) and the connecting portion (512) are integrally injection-molded from an elastic polymer.
7. The trenchless buffering earthquake-resistant repairing layer structure for the pipeline as claimed in claim 3, wherein: the buffer piece (51) is a spring (7).
8. The trenchless buffering earthquake-proof repairing layer structure for the pipeline as claimed in any one of claims 1 to 7, wherein: the first impregnation layer (1) and the second impregnation layer (3) are both epoxy resin layers, and the first cured layer is a vinyl resin layer (6).
9. The trenchless buffering earthquake-proof repairing layer structure for the pipeline as claimed in any one of claims 2 to 7, wherein: the second cured layer is a polyester resin layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120600809.3U CN214789521U (en) | 2021-03-24 | 2021-03-24 | Pipeline non-excavation buffering antidetonation restoration layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120600809.3U CN214789521U (en) | 2021-03-24 | 2021-03-24 | Pipeline non-excavation buffering antidetonation restoration layer structure |
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| Publication Number | Publication Date |
|---|---|
| CN214789521U true CN214789521U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120600809.3U Active CN214789521U (en) | 2021-03-24 | 2021-03-24 | Pipeline non-excavation buffering antidetonation restoration layer structure |
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- 2021-03-24 CN CN202120600809.3U patent/CN214789521U/en active Active
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