CN205560021U - Rigidity composite pipe structure - Google Patents
Rigidity composite pipe structure Download PDFInfo
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- CN205560021U CN205560021U CN201620189631.7U CN201620189631U CN205560021U CN 205560021 U CN205560021 U CN 205560021U CN 201620189631 U CN201620189631 U CN 201620189631U CN 205560021 U CN205560021 U CN 205560021U
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- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 239000003733 fiber-reinforced composite Substances 0.000 claims abstract description 30
- 238000000016 photochemical curing Methods 0.000 claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 53
- 230000004323 axial length Effects 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 20
- 239000000835 fiber Substances 0.000 description 13
- 239000002994 raw material Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a rigidity composite pipe structure, it includes the structural layer, the structural layer is reinforced concrete pipeline, as the atress structural layer, still includes inner liner and/or outer lining, places in on the inner wall and/or outer wall of structural layer, inner liner and/or outer lining are light cured fiber reinforced composite, this light cured fiber reinforced composite paste and pass through the photocuring and with the structural layer is solid as an organic whole. The utility model provides a composite pipe can reduce because the seepage of concrete cracking initiation to improve the life of pipeline. Furtherly can also prevent pipeline kneck fracture, improves pipeline water delivery efficiency simultaneously.
Description
Technical Field
The utility model relates to a plumbing engineering pipeline structure field especially relates to and is used for heavy-calibre pressure water delivery rigidity composite pipe structure.
Background
In order to solve the problem of water resource shortage in the urbanization process, China still needs to newly build a large amount of raw water conveying projects; the large-caliber pressure water conveying pipeline is the main structural form of the raw water conveying engineering. In areas with complicated geological and topographic conditions, rigid pipeline structures such as reinforced concrete, prestressed reinforced concrete and the like are often needed to improve the stress state of the pipeline.
However, the application of the conventional concrete pipeline has many problems, one is that the concrete pipeline interface is easy to crack and misplace to form leakage; secondly, the concrete structure runs for a long time, the durability problem exists, raw water or underground water permeates along cracks, reinforcing steel bars inside the structure are corroded, the bearing capacity of the structure is reduced, and the safety problem is caused; thirdly, the roughness of the inner wall of the pipeline is large, and the water delivery efficiency of the pipeline is low.
At present, the seepage-proofing and corrosion-proofing technology applied to the concrete pipeline mainly comprises the following steps:
1) by spraying the waterproof material on the inner wall and the outer wall of the concrete pipeline, the waterproof film formed by curing the waterproof coating has certain extensibility, elastoplasticity, crack resistance, impermeability and weather resistance, and can play waterproof, impermeable and protective roles. Common water-resistant coatings include: polyurethane, polyurea, asphalt waterproof coating, and the like.
2) The permeable crystalline waterproof material, the high molecular polymer and other materials are directly added into the concrete mixing ratio to improve the internal pore structure of the concrete, so that the permeation of water molecules and other harmful substances into the concrete is hindered.
However, the above solutions all have certain limitations: for common waterproof coatings, the temperature and humidity environment required by treatment of a base surface and curing of the coatings is often higher, and the waterproof and anti-seepage effects can be influenced when the base surface is poorly treated or the temperature and humidity environment required by curing cannot meet the requirements; the internal-doped waterproof material is not effective to the problems of leakage and corrosion caused by cracks of a concrete structure. Meanwhile, both the waterproof coating and the internally doped waterproof material have little influence on the roughness of the inner wall of the pipeline, and the water delivery efficiency of the pipeline cannot be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to improve prior art's defect, provide a rigidity composite pipe structure, it can reduce because the seepage that the concrete fracture causes to improve the life of pipeline. Furthermore, the cracking of the pipeline joint can be prevented, and the water delivery efficiency of the pipeline is improved.
The purpose of the utility model is realized like this:
the utility model provides a rigidity composite pipe structure, includes the structural layer, the structural layer is the concrete pipe, as the atress structural layer, still includes inner liner and/or outer liner, arranges in on the inner wall and/or the outer wall of structural layer, inner liner and/or outer liner are photocuring fiber reinforced composite, this photocuring fiber reinforced composite paste and through photocuring and with the structural layer is solid as an organic whole.
The light-cured fiber reinforced composite material is an ultraviolet light-cured composite material and comprises a filling material and a matrix component, wherein the matrix component is ultraviolet curing resin, and the filling material is fiber and/or fiber felt.
The filler material is, for example, glass fibers or/and glass fiber mats.
The ultraviolet light curing resin is impregnated in the fiber or the fiber felt; and/or the presence of a gas in the gas,
In the light-cured fiber reinforced composite material, the immersion amount of light-cured resin is 1.3-2.5kg per square meter of fiber or fiber felt; and/or the presence of a gas in the gas,
when the weight of each square meter of the fiber or the fiber felt is 1kg, the weight of the fiber or the fiber felt is 2.4-2.7kg after being immersed in the light-cured resin; or,
when 1.5kg per square meter of the fiber or fiber mat, the weight becomes 3.5-3.8kg after immersion in the photocurable resin.
The thickness of the composite material is 1.0-5.0 mm; and/or the presence of a gas in the gas,
the sleeve is formed by overlapping a plurality of blocks of the composite material; and/or the presence of a gas in the gas,
the sleeve is composed of a plurality of composite material blocks which are surrounded on the pipe wall with a set axial length, the joint of each composite material block which is connected end to end forms an axial lap joint, and a longitudinal lap joint is formed between the adjacent composite material blocks; and/or the presence of a gas in the gas,
the overlapping length of two adjacent composite materials at the lap seam is 8-10cm or 30-50 mm; and/or the presence of a gas in the gas,
a light-cured primer layer is also applied between the composite material and the pipe wall.
The axial lap joints are arranged in a staggered mode.
The production method of the rigid composite pipeline structure comprises the following steps: the method comprises the steps of firstly, prefabricating a concrete pipeline in a concrete prefabrication pipe factory, cleaning the surfaces of the inner wall and the outer wall of the concrete pipeline after demoulding the concrete pipeline, then respectively pasting a layer of light-cured fiber reinforced composite material on the inner wall and the outer wall of the concrete pipeline, and finally irradiating the light-cured fiber reinforced composite material by adopting ultraviolet light to form an inner lining layer and/or an outer lining layer.
The composite material as raw material has one transparent film coated on its front side and one transparent or opaque film coated on its back side; when the raw material is used for pasting on the pipe wall, the film on the reverse side is uncovered and pasted on the pipe wall, and then the film is pasted while being uncovered until a piece of composite material is pasted on the pipe wall; and/or the raw material form of the composite material is coiled material or sheet material.
The utility model provides an inner liner and/or outer lining layer on rigidity composite pipe structure pipe wall is formed by a plurality of blocks of combined material concatenation, and the handing-over gap department of adjacent combined material piece, the combined material that post-pasting will overlap one section with the combined material that has pasted in the front, and the size of overlap part is 30-50mm or 8-10cm be suitable.
When the light-cured fiber reinforced composite material is pasted, a cylindrical elastic support is adopted for supporting, so that the material is tightly attached to the inner wall and the outer wall of the pipe; and/or the presence of a gas in the gas,
when the ultraviolet light is adopted to irradiate and cure the fiber reinforced composite material, the ultraviolet lamp is arranged on the rotating mechanism, the circumferential pipe wall with the set length of the pipeline is irradiated through the rotation of the rotating mechanism, and the material is cured section by section through the movement of the mechanism.
The rotatable mechanism comprises a support, one or two rails are arranged on the support in parallel, a support frame is movably arranged on the rails, an ultraviolet light irradiation device is fixedly arranged on the support frame and corresponds to the inner wall and/or the outer wall of the pipeline to irradiate ultraviolet light on the ultraviolet light irradiation device, and a power device is connected on the support frame to enable the support frame to move on the rails.
The elastic support comprises a pipeline inner wall support, the pipeline inner wall support comprises a rod body and a support piece, a slide way is arranged on the rod at least at one end of the rod body, the support piece is slidably arranged on the rod body, an arc-shaped supporting surface is arranged at the outward end of the support piece, and a spring is arranged between the rod body and the support piece; and/or the presence of a gas in the gas,
the elastic support comprises a pipeline outer wall support, at least one support frame is fixedly arranged on the inner wall of the pipeline outer wall support and comprises a rod body and a support piece, one end of the rod body is fixed on the inner wall of the pipeline outer wall support, the other end of the rod body is provided with a slide way, the support piece is slidably arranged on the rod body, an arc-shaped supporting surface is arranged at the end part of the support piece, and a spring is arranged between the support piece and the rod body.
The key point of the utility model is that one layer of light-cured fiber reinforced composite material is pasted on the inner wall and/or the outer wall of the conventional concrete pipeline, and the composite structure is formed by combining the conventional concrete pipeline with the conventional concrete pipeline.
The utility model has the advantages that:
1. the utility model provides a rigid composite pipeline structure comprising an inner liner and/or an outer liner and a structural layer. The conventional concrete pipeline structure is used as a stress structure layer, the light-cured fiber reinforced composite material is used as an inner liner layer and an outer liner layer, the effects of water resistance, seepage prevention, corrosion prevention and the like are achieved, and meanwhile, the roughness of the inner wall of the concrete pipeline is reduced, so that the water delivery efficiency is improved.
2. The utility model discloses in, used photocuring fiber reinforced composite is the composite who is made by photocuring resin system and glass fiber or/and glass fiber felt, or other fibre or/and fibrofelt, and the one deck transparent film has been laid on the front of material, and the one deck is laid to the reverse side transparent or opaque film. The product is in the form of coiled material or sheet material, the thickness is adjustable between 1.0 mm and 5.0mm, and the width is adjustable. The light-cured fiber reinforced composite material is convenient to construct, can be cut and pasted according to the required shape and size, and is crosslinked and cured by high polymers under the irradiation of an ultraviolet lamp after being pasted to form a seamless sealing sleeve layer.
The invention is further illustrated by the following figures and examples.
Drawings
Fig. 1 is a schematic structural diagram of a cross section of a composite pipe in an embodiment of a rigid composite pipe structure provided by the present invention.
Fig. 2 is a schematic structural view of a state of a light-cured fiber reinforced composite raw material for curing on an inner wall and/or an outer wall of a pipe structure.
Figure 2a is a schematic representation of a roll of composite material wrapped in a light-resistant packaging layer before use.
Fig. 3 is a schematic structural diagram of an example of an elastic support of an auxiliary tool for adhering a composite material to an inner wall of a pipe before photocuring in a method for manufacturing a rigid composite pipe structure according to the present invention.
FIG. 3a is a schematic illustration of the use of the flexible support of FIG. 3 to support composite material on the inner wall of a pipe.
Fig. 4 is a schematic structural diagram of an embodiment of an auxiliary tool for adhering a composite material to an outer wall of a pipe before photocuring in the method for producing a rigid composite pipe structure according to the present invention.
FIG. 4a is a schematic view of the use of the auxiliary tool of FIG. 4 to support composite material on the outer wall of a pipe.
Fig. 5 is a schematic diagram of the auxiliary tool ultraviolet lamp irradiation device for simultaneously irradiating ultraviolet light to the inner wall and the outer wall of the pipeline in the production method of the rigid composite pipeline structure provided by the utility model.
FIG. 6 is a schematic view of an overlapping structure formed by splicing a plurality of light-cured fiber-reinforced composite materials on the inner wall or the outer wall of a pipe.
Detailed Description
In the specific example shown in fig. 1, the concrete pipe 1 serves as a structural layer, bearing a load; the light-cured fiber reinforced composite material is used as the inner lining layer 2 and the outer lining layer 3, has the functions of water resistance, seepage prevention, corrosion prevention and the like, and reduces the roughness of the inner wall of the concrete pipeline, thereby improving the water delivery efficiency.
The light-cured fiber reinforced composite material has small elastic modulus and high strength after being cured, is easy to form a composite stress structure together with concrete, and still plays a role in isolating seepage water after the concrete cracks. When the pipeline structure is designed, the functions of the inner lining layer and the outer lining layer do not need to be considered.
In practical application, the concrete pipe 1 is prefabricated in a concrete prefabrication pipe factory. After demolding, the surfaces of the inner wall and the outer wall of the concrete pipeline 1 are simply cleaned, then a layer of light-cured fiber reinforced composite material is respectively pasted, and the thickness is generally 1.0-5.0 mm according to the design requirement. Ultraviolet light is adopted to irradiate and cure the fiber reinforced composite material to form the inner lining layer and the outer lining layer. The method is convenient for industrial production and improves the efficiency.
The raw materials of the light-cured fiber reinforced composite material 01 adopted by the utility model are shown in figure 2 and figure 2a, the front surface of which is coated with a layer of transparent film 03, and the back surface of which is coated with a layer of transparent or nontransparent film 02;
the raw material a of the composite material is in the form of a coil, but of course, may be a sheet. During the storage and transportation of the raw materials, a layer of light-resistant material B is coated on the outer surface of the raw materials.
When the raw material is used for pasting on the pipe wall, the film 02 on the reverse side is uncovered, the exposed composite material 01 is pasted on the pipe wall, and then the pasting is carried out while uncovering until a piece of composite material is pasted on the pipe wall.
The basic performance criteria of the light-cured fiber-reinforced composite material used in this example are as follows:
1) the physical and mechanical properties are shown in Table 1.
Physical and mechanical Properties of the samples according to Table 1
2) The main hygienic performance indexes are shown in the attached table 2.
Attached table 2 Main sanitary standards and indexes
The following are specific examples of the above-described pipe production method: the method comprises the following steps:
1. firstly, according to a conventional method, a design drawing is used for prefabricating the reinforced concrete pipeline.
2. And (3) after the concrete is hardened to meet the demoulding requirement, demoulding, cleaning the surfaces of the inner wall and the outer wall of the concrete pipeline, and removing residual demoulding agent, sewage and the like.
3. Designing the size and shape of the required light-cured fiber reinforced composite material according to the structure and shape of the original pipeline, and cutting according to the requirement;
4. directly attaching the light-cured fiber reinforced composite material to the inner wall and the outer wall of the pipeline after decontamination. The inner and outer walls of the decontaminated pipe may be coated with a light curable primer, such as a metallic primer. And then laminating the light-cured fiber reinforced composite material, and curing the composite material on the wall of the concrete pipe through ultraviolet irradiation. The specific implementation method comprises the following steps:
a) one end of the protective film of the pasting surface of the light-cured fiber reinforced composite material is uncovered, and then the side with the uncovered film is carefully pasted on the inner wall of the pipeline. And (3) adopting a segmented vertical coating method, starting the sequence of the first segment from a certain position in the anticlockwise (clockwise) direction, winding and pasting the first segment to the top end of the pipeline, continuing pasting to the position of a joint, tearing off the inner layer film, and lapping the two ends, wherein the lapping length of the lapping peak is 8-10 cm. The composite material adhered to the tube wall is shown in fig. 6. To prevent the material from falling off before curing, an auxiliary tool can be used for supporting.
When the composite material of the inner wall of the pipe is pasted, an elastic bracket as shown in fig. 3 is used, the elastic bracket is a pipe inner wall bracket and comprises a rod body 4 and a support member 5, the support member comprises a pipe 51, the end part of the rod body 4 is inserted into the pipe 51, so that the support member 5 is slidably arranged on the rod body 4, the outward end of the support member 5 is provided with an arc-shaped supporting surface, and a spring 52 is arranged between the rod body 4 and the support member 5; the curved support surfaces on the support members at both ends of the resilient support are supported on the inner wall of the tube (as shown in fig. 3 a). Adjusting the support spring to enable the material to be attached to the surface of the pipeline so as to remove air between the material and the surface of the pipeline and enable the pipe wall to be tightly attached to the composite material; and rotating the bracket to press and attach the materials section by section.
When pasting the combined material of pipe outer wall, use as shown in fig. 4 pipeline outer wall support 6, this support 6 is the barrel of fretwork, sets firmly at least one support frame on the inner wall of this pipeline outer wall support 6, and the example shown in fig. 4 is 3 support frames of equipartition on the circumference, and every support frame includes the body of rod 7 and support piece 8, and the one end of this body of rod 7 is fixed on the inner wall of pipeline outer wall support 6, sets up support piece 8 on the other end of this body of rod slidable. Specifically, the support member 8 has a tubular body inserted on the rod body 7, and the support member 8 has an arc-shaped support surface at its end, and a spring 9 is provided between the support member 8 and the rod body 7.
The bonding width can be different according to the pipe diameter, but the overlapping part of the two ends of the composite material is at least 8-10cm (comprising an axial overlapping seam E part and an annular longitudinal overlapping seam D part). Before curing, the two ends of the composite material extending forwards and backwards are respectively covered by opaque adhesive tape or other opaque films for 8-10cm so as to be used for bonding when axially extending and overlapping another piece of composite material.
b) Axial bonding position of composite material: two adjacent overlapped parts cannot be on the same straight line, so that the 4 layers of materials are prevented from being overlapped at the same position and are not beneficial to full curing; the bonding positions of the two sections of materials are staggered by more than 15 degrees. (as shown in FIG. 6)
c) And after the above process is finished, ultraviolet irradiation curing is carried out. The ultraviolet lamp ring for curing is installed on a rotatable mechanism (as shown in fig. 5), the rotatable mechanism comprises a support frame F, one or two rails are arranged on the support frame F in parallel, a support frame E is movably arranged on the rails, an ultraviolet irradiation device is fixedly arranged on the support frame E, the ultraviolet irradiation device corresponds to the inner wall and the outer wall of the pipeline and irradiates ultraviolet light on the inner wall and the outer wall of the pipeline, the support frame E is connected with a power device through a transmission mechanism, so that the support frame moves on the rails, the support frame F is also connected with the power device, the support frame F rotates, and the composite material adhered on the whole pipe wall can be cured on the concrete pipe wall by the rotation of the support frame F and the movement of the support frame E; the material is solidified section by section through the movement of the mechanism. Ultraviolet operators should wear ultraviolet protective clothing and wear ultraviolet-proof eyes to prevent ultraviolet rays from directly irradiating human bodies. During curing, the composite material is cured along the pipe wall to avoid air gaps caused by the separation of the composite material which is not cured. Depending on the ultraviolet lamp, the curing may be carried out in one stage or in several stages. When curing, the transparent film with non-sticking surface is not removed, and after curing completely, it is removed.
d) The curing time of the material can be set to 5-60min (depending on the site specific situation) until the material is completely cured, which will be odorless. After the basic curing, the inner and outer arc-shaped elastic supports which are prevented from falling off are removed to carry out the complete curing, and the complete curing operation must ensure that the light receiving time of the material at each part is kept between 5 and 60 minutes.
In the above embodiment, the composite material is cured on both the inner wall and the outer wall of the concrete pipe. Of course, the composite material is cured solely on the inner or outer wall of the pipe, depending on the requirements of the particular application.
The utility model provides a rigidity composite pipe through pasting photocuring fiber reinforced composite on current reinforced concrete pipe wall, improves concrete pipe's anticorrosive prevention of seepage effect, improves reinforced concrete pipe's comprehensive properties and life. The production method of the rigid composite anti-corrosion pipeline provides guidance and help for safely, reliably, quickly and conveniently pasting the light-cured composite anti-corrosion material on the concrete pipe wall. The utility model provides a reinforced concrete pipeline's comprehensive properties such as anticorrosive prevention of seepage has prolonged pipeline life, has exploited more application of concrete pipeline, will be for the construction century pipeline engineering, reduce the construction and the maintenance cost of pipeline, make apparent contribution for environmental protection and energy saving.
Claims (4)
1. A rigid composite pipe structure characterized by: the reinforced concrete pipe comprises a structural layer, the structural layer is the reinforced concrete pipeline, as the atress structural layer, still includes inner liner and/or outer lining, arranges in on the inner wall and/or the outer wall of structural layer, inner liner and/or outer lining are photocuring fiber reinforced composite, this photocuring fiber reinforced composite paste and through photocuring and with the structural layer is solid as an organic whole.
2. The rigid composite pipe structure according to claim 1, wherein: the light-cured fiber reinforced composite material is an ultraviolet light-cured composite material.
3. The rigid composite pipe structure according to any one of claims 1 to 2, wherein: the thickness of the composite material is 1.0-5.0 mm; and/or the presence of a gas in the gas,
the composite material forms a sleeve, and the sleeve is formed by overlapping a plurality of composite materials; and/or the presence of a gas in the gas,
the composite material forms a sleeve, the sleeve is composed of a plurality of composite material blocks which are surrounded on the pipe wall with a set axial length, the joint of each composite material block which is connected end to end forms an axial lap joint, and a longitudinal lap joint is formed between the adjacent composite material blocks; and/or the presence of a gas in the gas,
The overlapping length of two adjacent composite materials at the lap seam is 8-10cm or 30-50 mm; and/or the presence of a gas in the gas,
a light-cured primer layer is also applied between the composite material and the pipe wall.
4. The rigid composite pipe structure according to claim 3, wherein: the axial lap joints are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189631.7U CN205560021U (en) | 2016-03-11 | 2016-03-11 | Rigidity composite pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189631.7U CN205560021U (en) | 2016-03-11 | 2016-03-11 | Rigidity composite pipe structure |
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| CN205560021U true CN205560021U (en) | 2016-09-07 |
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| CN201620189631.7U Active CN205560021U (en) | 2016-03-11 | 2016-03-11 | Rigidity composite pipe structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032859A (en) * | 2016-03-11 | 2016-10-19 | 北京百世通管道科技有限公司 | Rigid composite pipeline structure and production method thereof |
| CN106678456A (en) * | 2017-03-08 | 2017-05-17 | 盐城工学院 | Concrete canvas composite pipe |
-
2016
- 2016-03-11 CN CN201620189631.7U patent/CN205560021U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032859A (en) * | 2016-03-11 | 2016-10-19 | 北京百世通管道科技有限公司 | Rigid composite pipeline structure and production method thereof |
| CN106678456A (en) * | 2017-03-08 | 2017-05-17 | 盐城工学院 | Concrete canvas composite pipe |
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