WO2018076493A1 - Splicing pipe for comprehensive bamboo composite pipe gallery, and pipe gallery comprising same - Google Patents

Splicing pipe for comprehensive bamboo composite pipe gallery, and pipe gallery comprising same Download PDF

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Publication number
WO2018076493A1
WO2018076493A1 PCT/CN2016/110103 CN2016110103W WO2018076493A1 WO 2018076493 A1 WO2018076493 A1 WO 2018076493A1 CN 2016110103 W CN2016110103 W CN 2016110103W WO 2018076493 A1 WO2018076493 A1 WO 2018076493A1
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Prior art keywords
layer
pipe
bamboo
resin
nonwoven fabric
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PCT/CN2016/110103
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French (fr)
Chinese (zh)
Inventor
叶柃
殷建学
赵柱石
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浙江鑫宙竹基复合材料科技有限公司
叶柃
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Publication of WO2018076493A1 publication Critical patent/WO2018076493A1/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0006—Plastics
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0085—Geotextiles
    • E02D2300/009—Geotextiles with multi-layer structure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0085—Geotextiles
    • E02D2300/009—Geotextiles with multi-layer structure
    • E02D2300/0092—Geotextiles with multi-layer structure including a liquid tight layer
    • E02D2300/0095—Geotextiles with multi-layer structure including a liquid tight layer including a plastic membrane

Definitions

  • the invention belongs to the technical field of pipe corridors, and in particular to a splicable pipe member for a bamboo composite integrated pipe gallery and a pipe gallery including the pipe member.
  • the pipe gallery is a municipal facility built on the underground of the city for the laying of municipal pipelines. It integrates various municipal pipelines such as electric power, communication, radio and television, gas, water supply and drainage, and heat, effectively utilizing the space under the road, conserving underground space resources, and eliminating irregular excavation of various professional pipelines.
  • various municipal pipelines such as electric power, communication, radio and television, gas, water supply and drainage, and heat, effectively utilizing the space under the road, conserving underground space resources, and eliminating irregular excavation of various professional pipelines.
  • the impact of the passage and the surrounding environment completely solved the problems of “road zipper” and “air spider web”.
  • the existing pipe porches are usually prepared by cast-in-place or prefabricated reinforced concrete structures.
  • This pipe porch consumes a lot of materials, has a large amount of construction work, has a long construction period and high cost, and on the other hand, it uses reinforced concrete materials.
  • the energy consumption is large, and a large amount of emissions are generated in the production process, which has a great impact on the environment, and it is increasingly difficult to adapt to the needs of energy conservation and emission reduction and modern urban construction.
  • the applicant's prior application patent CN 205136858U discloses a prefabricated bamboo composite pipe gallery in which the structural layers of the pipe joints constituting the pipe gallery are widely used.
  • bamboo material preparation Specifically, the tube body comprises, in order from the inside to the outside, an inner liner layer, a structural layer and an outer protective layer.
  • the inner liner layer comprises a flame retardant resin and a flame retardant fabric
  • the structural layer comprises at least several layers which are adhered by water.
  • a bamboo raft layer formed by winding a bamboo raft of a resin, the outer protective layer comprising at least a flame retardant resin, and the bearing member is fixed on an inner surface of the tubular body. Since the pipe body structure layer is made of bamboo raft, the pipe body and its production process are green and environmentally friendly. While ensuring the strength, the quality is light, transportation and installation are convenient, and the bamboo is a renewable resource, and the raw material cost is low.
  • This kind of pipe gallery overcomes the current cost of materials for reinforced concrete structure pipe gallery, large construction engineering, long construction period, high cost, large energy consumption and emissions, and non-recyclable and degradable. Defects.
  • the The protective performance has very high requirements to ensure the safety of the pipeline.
  • the flame retardant fireproof material is used for the inner liner and the outer protective layer, the structural layer therein can ensure a certain fireproof performance by adding a fireproof resin or a filler.
  • the strong flammability of bamboo there is still a possible risk of fire prevention, especially the inner lining, which is in direct contact with the internal pipelines and the bamboo in the structural layer.
  • the effective fire performance is very important.
  • the fireproofing of the lining is only through the flame retardant fabric and the flame retardant resin, and the fireproof effect is still insufficient.
  • the combination of the inner lining layer and the structural layer also has an influence on the strength of the pipe body, and it is necessary to further improve the lining.
  • the tightness of the combination of the layer and the structural layer is only through the flame retardant fabric and the flame retardant resin, and the fireproof effect is still insufficient.
  • the present invention provides a splicable pipe member for a bamboo composite integrated pipe gallery and a pipe gallery including the pipe member, which improves the inner liner material of the pipe member and the corresponding structure.
  • the prepared inner liner and the pipe have excellent fireproof performance and at the same time improve the strength of the pipe.
  • a splicable pipe member for a bamboo composite integrated pipe gallery comprising an inner lining layer, a structural layer and a radially arranged inner to outer portion.
  • the inner liner layer comprises a bamboo fiber nonwoven fabric layer, a knitted felt layer and a mesh layer layer which are sequentially wound into a layer, wherein the bamboo fiber nonwoven fabric layer is made of a bamboo fiber nonwoven fabric impregnated with a fireproof resin. Formed by spirally winding a plurality of layers on the pipe mold mold along the axial direction of the pipe body, and the bamboo fiber mass percentage in the bamboo fiber nonwoven fabric is not less than 98%, and the areal density is 40-50 g/m 2 ;
  • the mesh layer is formed by spirally winding a plurality of layers of a mesh cloth impregnated with a fire-retardant resin on the knitted felt layer in an axial direction, and the surface density of the mesh cloth is 40 to 50 g/m 2 .
  • the tensile breaking strength is not less than 150 N, and the elongation at break is not more than 5%.
  • the bamboo fiber nonwoven fabric and the mesh cloth are impregnated with the fireproof resin, and the formed bamboo fiber nonwoven fabric layer and the mesh cloth layer are wrapped with the corresponding bamboo fiber nonwoven fabric and
  • the mesh cloth in particular, by defining the areal density in the bamboo fiber nonwoven fabric and the surface density of the mesh cloth of 40 to 50 g/m 2 , can ensure that the fireproof resin can completely fill the infiltrated bamboo fiber nonwoven fabric and the mesh cloth.
  • the bamboo fiber nonwoven fabric layer is formed by spirally winding two layers of a bamboo fiber nonwoven fabric impregnated with a fireproof resin on a pipe mold in the axial direction of the pipe body.
  • the spirally wound edges are not overlapped.
  • the fireproof resin added to the structural layer is the same as the fireproof resin added to the inner liner.
  • the fireproof resin is added with a biomass filler, wherein the filler has a fiber filament content of more than 40% by weight and a particle size of between 60 and 80 mesh.
  • the fireproof resin is one or more of an epoxy resin, an amino resin, a phenol resin, an unsaturated polyester resin, and a polyurethane resin having fire resistance.
  • the thickness of the inner liner layer is preferably 5 ⁇ 0.5 mm.
  • the mesh cloth is preferably polyester.
  • Another aspect of the present invention is to provide a pipe gallery formed by sequentially splicing the splicable pipe members through a joint.
  • the bamboo fiber nonwoven fabric layer and the mesh cloth layer are coated with the bamboo fiber nonwoven fabric by the bamboo fiber nonwoven fabric and the mesh cloth by infiltrating the fireproof resin.
  • the mesh cloth in particular, by defining the areal density in the bamboo fiber nonwoven fabric and the surface density of the mesh cloth of 40 to 50 g/m 2 , can ensure that the fireproof resin can completely fill the infiltrated bamboo fiber nonwoven fabric and the mesh cloth. Achieve all-round safety wrapping, so that the fireproof performance of the inner liner layer is effectively guaranteed, and the arrangement of the multi-layer bamboo fiber nonwoven fabric layer and the mesh cloth layer makes the fireproof performance better;
  • the axial tensile strength is maximized, so that the tensioned bamboo slab is formed in the structural layer, which greatly improves the mechanical strength of the structural layer, so that it can have a high structural strength;
  • the surface density of the bamboo fiber nonwoven fabric and the surface density of the mesh cloth are limited, and the bamboo fiber mass percentage content in the bamboo fiber nonwoven fabric, and the mesh cloth pull
  • the limitation of tensile strength and elongation at break ensures sufficient structural strength of the inner liner, and the surface density of the mesh is limited so that it can have better bonding with the peripheral structural layer, so that the infiltrated resin can be It is fused with the resin of the structural layer and can be tightly bonded after curing to further enhance its structural strength.
  • the splicable pipe member of the present invention by adding the same fireproof resin as the structural layer, it can be ensured that the inner liner layer and the structural layer are tightly combined after curing, and has good bonding strength and fireproof performance, and resin
  • the above-mentioned content and particle size of the biomass filler may be added so that the tensile strength after curing is greater than 50 MPa and the Barcol hardness is greater than 40, thereby further optimizing the strength of the tube and the fire resistance.
  • Figure 1 is a schematic view showing the structure of a splicable pipe member in accordance with an embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a splicable pipe member according to an embodiment of the present invention.
  • a splicable pipe member for a bamboo composite integrated pipe gallery which is a main component of a pipe gallery, is used for communicating with each other through a connecting member to form a pipe gallery.
  • the pipe body of the straight pipe includes an inner lining layer, a structural layer and an outer protective layer in the radial direction from the inside to the outside, wherein the inner lining layer and the outer protective layer are used to protect the structural layer and prevent the pipe body from being fireproof. Waterproof, anti-leakage, corrosion resistance and long service life.
  • the inner liner is formed by winding on a pipe mold, and preferably the film is further provided with a film to facilitate demolding.
  • the structural layer is a main reinforcing structure of the tubular body, and the structural layer is wound on the inner liner layer by bamboo and is cured by adding a fireproof resin.
  • the outer protective layer is formed by winding or spray coating on the structural layer.
  • the inner liner layer is in direct contact with the inner pipeline pipeline and the bamboo material in the structural layer, and the effective fireproof performance is very critical.
  • the inner liner layer comprises a bamboo fiber non-woven fabric layer, a knitted felt layer and a layer wound sequentially.
  • the mesh layer is composed of layers.
  • the bamboo fiber nonwoven fabric layer is formed by a bamboo fiber nonwoven fabric impregnated with a fireproof resin by spirally winding a plurality of layers on the pipe mold mold along the axial direction of the pipe body, for example, may be wound into two, three or more layers. The winding direction and angle of each layer may be different.
  • the end of the non-woven fabric impregnated or impregnated with the fire-retardant resin is attached to the tube mold, and the non-woven fabric is spirally wound around the tube mold with the rotation and axial movement of the tube mold, and spirally wound.
  • the angle is between 70-90°, and the width of the lap width is preferably not less than 1/5 of the width of the nonwoven fabric.
  • the resin can be continuously filled during winding, so that the resin can be completely filled with the impregnated bamboo fiber nonwoven fabric to achieve all-round Safe package.
  • the bamboo fiber has a mass percentage content of not less than 98% and an areal density of 40 to 50 g/m 2 in the bamboo fiber nonwoven fabric.
  • the knitted felt layer is spirally wound on the bamboo fiber nonwoven layer by a knitted felt impregnated with a fireproof resin, and the winding manner can be the same as that of the bamboo fiber nonwoven layer, and the number of the wound layers can also be two, three or more.
  • the layer is preferably the same as the number of layers of the bamboo fiber nonwoven fabric layer.
  • the knitted felt is preferably made of fiberglass that has excellent fire resistance.
  • the mesh layer is formed by spirally winding a plurality of layers of the flame-retardant resin-impregnated mesh on the knitted felt layer, for example, two, three or more layers, and the winding direction of each layer and The angle can be different.
  • the end of the mesh cloth impregnated or impregnated with the fire-retardant resin is attached to the knitted felt layer, and as the tube mold drives the rotation and axial movement of the knitted felt layer, the mesh cloth is spirally wound in the knitting.
  • the spiral winding angle is between 70-90°, and the lap width is preferably not less than 1/5 of the width of the nonwoven fabric.
  • the resin can be continuously filled during winding so that the resin can completely fill the infiltrated bamboo fiber.
  • the woven fabric provides a full range of safe packages.
  • the mesh fabric has an areal density of 40 to 50 g/m 2 , a tensile breaking strength of not less than 150 N, and an elongation at break of not more than 5%.
  • the bamboo fiber non-woven fabric and the mesh cloth are coated with the bamboo fiber nonwoven fabric and the mesh cloth by encapsulating the fireproof resin to encapsulate the corresponding bamboo fiber non-woven fabric and mesh cloth, in particular
  • the fireproof resin can be completely filled with the infiltrated bamboo fiber nonwoven fabric and the mesh cloth to achieve all-round safety.
  • the package is so as to ensure the fireproof performance, and the arrangement of the multi-layer bamboo fiber nonwoven layer and the mesh layer makes the fireproof performance better; on the other hand, the areal density in the bamboo fiber nonwoven fabric And the definition of the areal density of the mesh cloth, the mass percentage of the bamboo fiber in the bamboo fiber nonwoven fabric, the tensile breaking strength of the mesh cloth and the elongation at break, which can ensure sufficient structural strength of the inner liner.
  • the surface density of the mesh cloth is limited such that it can have better bonding with the peripheral structural layer, so that the infiltrated resin can be fused with the resin of the structural layer, and can be tightly bonded after curing. Combined, further enhance its structural strength.
  • the fireproof resin may be simultaneously added with a biomass filler, wherein the filler has a fiber filament content of more than 40% by weight and a particle size of between 60 and 80 mesh.
  • the above content and particles added to the resin The size of the biomass filler can be such that the tensile strength after curing is greater than 50 MPa and the Barcol hardness is greater than 40, thereby further optimizing the strength and fire resistance of the tubular structural layer.
  • the fireproof resin is one or more of an epoxy resin, an amino resin, a phenol resin, an unsaturated polyester resin, and a polyurethane resin having fire resistance.
  • the waterproof and corrosion resistant material of the outer protective layer may be one or more of polyurea resin, polyester resin, polyurethane resin, epoxy resin, asphalt, waterproofing membrane.
  • the splicable pipe fitting of the invention is suitable for splicing to form a bamboo-wound composite integrated pipe porch, for example, through the socket of the end of the pipe fitting and the socket of the end of another pipe fitting, or assembling by other connecting pieces to form a pipe of a required length. gallery.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • Mechanical Engineering (AREA)
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  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

A splicing pipe for a comprehensive bamboo composite pipe gallery. A pipe body of the pipe comprises a liner layer, a structural layer, and an outer protective layer that are successively provided from inside to outside along a radial direction; the liner layer is formed by stacking a bamboo fiber nonwoven fabric layer, a knitted felt layer, and a mesh cloth layer that are successively wound to be layers; the bamboo fiber nonwoven fabric layer is formed by spirally winding a pipe gallery die with multiple layers of bamboo fiber nonwoven fabric impregnated with a fire retardant resin along the axial direction of the pipe body; the mesh cloth layer is formed by spirally winding the knitted felt layer with multiple layers of mesh cloth impregnated with the fire retardant resin along the axial direction.

Description

用于竹复合综合管廊的可拼接管件及包括该管件的管廊Splicable pipe fitting for bamboo composite integrated pipe gallery and pipe gallery including the pipe fitting [技术领域][Technical field]
本发明属于管廊技术领域，具体地，涉及一种用于竹复合综合管廊的可拼接管件及包括该管件的管廊。The invention belongs to the technical field of pipe corridors, and in particular to a splicable pipe member for a bamboo composite integrated pipe gallery and a pipe gallery including the pipe member.
[背景技术][Background technique]
管廊是建于城市地下用于敷设市政管线的市政设施。其集电力、通信、广电、燃气、给排水、热力等多种市政管线于一体，有效地利用了道路下的空间，节约地下空间资源，也杜绝了各专业管线分别不定期开挖，对道路通行和周边环境造成的影响，彻底解决了“马路拉链”、“空中蜘蛛网”等问题。The pipe gallery is a municipal facility built on the underground of the city for the laying of municipal pipelines. It integrates various municipal pipelines such as electric power, communication, radio and television, gas, water supply and drainage, and heat, effectively utilizing the space under the road, conserving underground space resources, and eliminating irregular excavation of various professional pipelines. The impact of the passage and the surrounding environment completely solved the problems of “road zipper” and “air spider web”.
现有的管廊通常采用钢筋混凝土结构通过现浇或预制方式制备得到，这种管廊一方面耗费材料多，建设工程量大，施工周期长，造价高，另一方面其采用的钢筋混凝土材料能耗大，生产过程中造成大量的排放，对环境影响很大，越来越难以适应节能减排以及现代化城市建设的需求。The existing pipe porches are usually prepared by cast-in-place or prefabricated reinforced concrete structures. This pipe porch consumes a lot of materials, has a large amount of construction work, has a long construction period and high cost, and on the other hand, it uses reinforced concrete materials. The energy consumption is large, and a large amount of emissions are generated in the production process, which has a great impact on the environment, and it is increasingly difficult to adapt to the needs of energy conservation and emission reduction and modern urban construction.
为克服上述缺陷，现有技术中出现了新型材料制备的管廊，例如申请人在先申请的专利CN 205136858U公开了一种预制竹复合管廊，其中组成管廊的管节的结构层大量采用竹材料制备。具体地，该管体径向由内至外依次包括内衬层、结构层和外防护层，该内衬层包括阻燃树脂和阻燃织物，该结构层至少包括若干层由粘附有水溶性树脂的竹篾缠绕而成的竹篾层，该外防护层至少包括阻燃树脂，该承力构件固定在该管体的内表面上。由于管廊管体结构层采用竹篾制成，使得管体及其生产制作过程绿色环保，在保证强度的同时，质量轻，运输及安装方便，且竹子为可再生资源，原材料成本低。这种管廊克服了目前钢筋混凝土结构管廊存在的耗费材料多，建设工程量大，施工周期长，造价高以及能耗和排放大，不可回收和降解 的缺陷。In order to overcome the above-mentioned deficiencies, a pipe rack for the preparation of a novel material has appeared in the prior art. For example, the applicant's prior application patent CN 205136858U discloses a prefabricated bamboo composite pipe gallery in which the structural layers of the pipe joints constituting the pipe gallery are widely used. Bamboo material preparation. Specifically, the tube body comprises, in order from the inside to the outside, an inner liner layer, a structural layer and an outer protective layer. The inner liner layer comprises a flame retardant resin and a flame retardant fabric, and the structural layer comprises at least several layers which are adhered by water. A bamboo raft layer formed by winding a bamboo raft of a resin, the outer protective layer comprising at least a flame retardant resin, and the bearing member is fixed on an inner surface of the tubular body. Since the pipe body structure layer is made of bamboo raft, the pipe body and its production process are green and environmentally friendly. While ensuring the strength, the quality is light, transportation and installation are convenient, and the bamboo is a renewable resource, and the raw material cost is low. This kind of pipe gallery overcomes the current cost of materials for reinforced concrete structure pipe gallery, large construction engineering, long construction period, high cost, large energy consumption and emissions, and non-recyclable and degradable. Defects.
因为管廊内径较大，甚至达到8-10m，且埋置于地下并容纳有各种管道管线，包括各种水、电甚至燃气等，除了对其整体强度要求很高外，对管廊的防护性能具有非常高的要求，用以保证管道管线的安全。上述方案中，尽管其中在内衬层以及外防护层使用了阻燃防火材料，其中的结构层也通过通过添加防火性树脂或填料可以保证一定的防火性能。但是，因为竹材可燃性较强，仍然存在可能的防火风险，特别是其中内衬层，其与内部的管道管线以及结构层中竹材直接接触，其有效的防火性能非常关键，上述方案中对内衬层的防火仅是通过阻燃织物以及阻燃树脂，其防火效果仍然存在不足，另外，这种内衬层与结构层的结合性对管体强度也会有影响，有必要进一步提升内衬层与结构层的结合紧密度。Because the inner diameter of the pipe gallery is large, even reaching 8-10m, and buried underground and containing various pipelines, including various water, electricity and even gas, in addition to the high overall strength requirements, the The protective performance has very high requirements to ensure the safety of the pipeline. In the above solution, although the flame retardant fireproof material is used for the inner liner and the outer protective layer, the structural layer therein can ensure a certain fireproof performance by adding a fireproof resin or a filler. However, because of the strong flammability of bamboo, there is still a possible risk of fire prevention, especially the inner lining, which is in direct contact with the internal pipelines and the bamboo in the structural layer. The effective fire performance is very important. The fireproofing of the lining is only through the flame retardant fabric and the flame retardant resin, and the fireproof effect is still insufficient. In addition, the combination of the inner lining layer and the structural layer also has an influence on the strength of the pipe body, and it is necessary to further improve the lining. The tightness of the combination of the layer and the structural layer.
[发明内容][Summary of the Invention]
针对现有技术的以上不足或改进需求，本发明提供一种用于竹复合综合管廊的可拼接管件及包括该管件的管廊，其通过对管件内衬层材料及相应结构的改进，使得制备的内衬层及管件具有优良的防火性能，同时改善了管件强度。In view of the above deficiencies or improvement requirements of the prior art, the present invention provides a splicable pipe member for a bamboo composite integrated pipe gallery and a pipe gallery including the pipe member, which improves the inner liner material of the pipe member and the corresponding structure. The prepared inner liner and the pipe have excellent fireproof performance and at the same time improve the strength of the pipe.
为实现上述目的，按照本发明的一个方面，提供一种用于竹复合综合管廊的可拼接管件，该管件的管体包括在径向由内至外依次设置的内衬层、结构层和外防护层，其中所述结构层通过竹材缠绕在所述内衬层上并通过添加防火性树脂粘结固化而成，所述外防护层设置在所述结构层上，其特征在于，In order to achieve the above object, according to an aspect of the present invention, a splicable pipe member for a bamboo composite integrated pipe gallery is provided, the pipe body of the pipe member comprising an inner lining layer, a structural layer and a radially arranged inner to outer portion. An outer protective layer, wherein the structural layer is wound on the inner liner by bamboo and is cured by adding a fireproof resin, and the outer protective layer is disposed on the structural layer, wherein
所述内衬层包括依次缠绕成层的竹纤维无纺布层、针织毡层和网格布层层叠组成，其中，所述竹纤维无纺布层由浸透防火性树脂的竹纤维无纺布通过在管廊模具上沿管体轴向螺旋缠绕多层而形成，且所述竹纤维无纺布中的竹纤维质量百分比含量不小于98％，其面密度为40～50g/m2；The inner liner layer comprises a bamboo fiber nonwoven fabric layer, a knitted felt layer and a mesh layer layer which are sequentially wound into a layer, wherein the bamboo fiber nonwoven fabric layer is made of a bamboo fiber nonwoven fabric impregnated with a fireproof resin. Formed by spirally winding a plurality of layers on the pipe mold mold along the axial direction of the pipe body, and the bamboo fiber mass percentage in the bamboo fiber nonwoven fabric is not less than 98%, and the areal density is 40-50 g/m 2 ;
所述网格布层由浸透防火性树脂的网格布在所述针织毡层上沿轴向螺 旋缠绕多层而形成，且所述网格布的面密度在40～50g/m2，其拉伸断裂强力不小于150N，其断裂伸长率不大于5％。The mesh layer is formed by spirally winding a plurality of layers of a mesh cloth impregnated with a fire-retardant resin on the knitted felt layer in an axial direction, and the surface density of the mesh cloth is 40 to 50 g/m 2 . The tensile breaking strength is not less than 150 N, and the elongation at break is not more than 5%.
通过本发明上述构思的技术方案，一方面通过竹纤维无纺布和网格布通过浸润防火树脂使形成的竹纤维无纺布层和网格布层中树脂包裹相应的竹纤维无纺布和网格布，特别是通过限定竹纤维无纺布中的面密度以及网格布的面密度为40～50g/m2，可以保证防火树脂可完全填充浸润竹纤维无纺布和网格布，实现全方位的安全包裹，从而使得其防火性能得到有效保证，而且其中多层竹纤维无纺布层和网格布层的布置，使得其防火性能更好；另一方面，通过竹纤维无纺布中的面密度以及网格布的面密度的限定、以及竹纤维无纺布中的竹纤维质量百分比含量、网格布的拉伸断裂强力和断裂伸长率的限定，可以保证内衬层足够的结构强度，而且网格布的面密度的限定使得其可以与外围的结构层具有更好的结合性，使得浸润的树脂可以与结构层的树脂相互融合，在固化后可以紧密结合，进一步增强其结构强度。According to the technical solution of the above concept of the present invention, on the one hand, the bamboo fiber nonwoven fabric and the mesh cloth are impregnated with the fireproof resin, and the formed bamboo fiber nonwoven fabric layer and the mesh cloth layer are wrapped with the corresponding bamboo fiber nonwoven fabric and The mesh cloth, in particular, by defining the areal density in the bamboo fiber nonwoven fabric and the surface density of the mesh cloth of 40 to 50 g/m 2 , can ensure that the fireproof resin can completely fill the infiltrated bamboo fiber nonwoven fabric and the mesh cloth. Achieve all-round safe wrapping, so that its fireproof performance is effectively guaranteed, and the arrangement of multi-layer bamboo fiber non-woven fabric layer and mesh cloth layer makes its fireproof performance better; on the other hand, it is non-woven through bamboo fiber The definition of the areal density in the cloth and the surface density of the mesh cloth, as well as the percentage of the bamboo fiber mass percentage in the bamboo fiber nonwoven fabric, the tensile breaking strength of the mesh cloth and the elongation at break, can ensure the inner liner Sufficient structural strength, and the areal density of the mesh is defined so that it can have better bonding with the peripheral structural layer, so that the infiltrated resin can be fused with the resin of the structural layer. After curing, it can be tightly bonded to further enhance its structural strength.
作为本发明的进一步优选，所述竹纤维无纺布层由浸透防火性树脂的竹纤维无纺布在管廊模具上沿管体轴向螺旋缠绕两层而形成。Further preferably, the bamboo fiber nonwoven fabric layer is formed by spirally winding two layers of a bamboo fiber nonwoven fabric impregnated with a fireproof resin on a pipe mold in the axial direction of the pipe body.
作为本发明的进一步优选，所述竹纤维无纺布层、针织毡层以及网格布层中各螺旋缠绕的搭边不重合。Further preferably, in the bamboo fiber nonwoven fabric layer, the knitted felt layer, and the mesh layer, the spirally wound edges are not overlapped.
作为本发明的进一步优选，所述结构层上添加的防火性树脂与内衬层上添加的防火性树脂相同。Further preferably, in the present invention, the fireproof resin added to the structural layer is the same as the fireproof resin added to the inner liner.
作为本发明的进一步优选，所述防火性树脂中添加有生物质填料，其中填料的纤维丝含量大于40wt％，颗粒度在60-80目之间。As a further preferred embodiment of the present invention, the fireproof resin is added with a biomass filler, wherein the filler has a fiber filament content of more than 40% by weight and a particle size of between 60 and 80 mesh.
作为本发明的进一步优选，所述防火性树脂为具有防火性的环氧树脂、氨基树脂、酚醛树脂、不饱和聚酯树脂和聚氨酯树脂中的一种或几种。Further preferably, the fireproof resin is one or more of an epoxy resin, an amino resin, a phenol resin, an unsaturated polyester resin, and a polyurethane resin having fire resistance.
作为本发明的进一步优选，所述内衬层的厚度优选为5±0.5mm。As a further preferred embodiment of the present invention, the thickness of the inner liner layer is preferably 5 ± 0.5 mm.
作为本发明的进一步优选，所述网格布优选为涤纶。 As a further preferred embodiment of the invention, the mesh cloth is preferably polyester.
本发明另一方面在于提供一种管廊，其由所述可拼接管件通过连接件依次拼接形成。Another aspect of the present invention is to provide a pipe gallery formed by sequentially splicing the splicable pipe members through a joint.
总体而言，通过本发明所构思的以上技术方案与现有技术相比，具有以下有益效果：In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:
(1)本发明的可拼接管件中，通过竹纤维无纺布和网格布通过浸润防火树脂使形成的竹纤维无纺布层和网格布层中树脂包裹相应的竹纤维无纺布和网格布，特别是通过限定竹纤维无纺布中的面密度以及网格布的面密度为40～50g/m2，可以保证防火树脂可完全填充浸润竹纤维无纺布和网格布，实现全方位的安全包裹，从而使得内衬层防火性能得到有效保证，而且其中多层竹纤维无纺布层和网格布层的布置，使得其防火性能更好；(1) In the splicable pipe member of the present invention, the bamboo fiber nonwoven fabric layer and the mesh cloth layer are coated with the bamboo fiber nonwoven fabric by the bamboo fiber nonwoven fabric and the mesh cloth by infiltrating the fireproof resin. The mesh cloth, in particular, by defining the areal density in the bamboo fiber nonwoven fabric and the surface density of the mesh cloth of 40 to 50 g/m 2 , can ensure that the fireproof resin can completely fill the infiltrated bamboo fiber nonwoven fabric and the mesh cloth. Achieve all-round safety wrapping, so that the fireproof performance of the inner liner layer is effectively guaranteed, and the arrangement of the multi-layer bamboo fiber nonwoven fabric layer and the mesh cloth layer makes the fireproof performance better;
，使其轴向拉伸强度发挥至最大化，这样张紧状态的竹篾片形成在结构层中，大大提高结构层的力学强度，使其能够具有很高的结构强度；The axial tensile strength is maximized, so that the tensioned bamboo slab is formed in the structural layer, which greatly improves the mechanical strength of the structural layer, so that it can have a high structural strength;
(2)本发明的可拼接管件中，通过竹纤维无纺布中的面密度以及网格布的面密度的限定、以及竹纤维无纺布中的竹纤维质量百分比含量、网格布的拉伸断裂强力和断裂伸长率的限定，可以保证内衬层足够的结构强度，而且网格布的面密度的限定使得其可以与外围的结构层具有更好的结合性，使得浸润的树脂可以与结构层的树脂相互融合，在固化后可以紧密结合，进一步增强其结构强度。(2) In the splicable pipe member of the present invention, the surface density of the bamboo fiber nonwoven fabric and the surface density of the mesh cloth are limited, and the bamboo fiber mass percentage content in the bamboo fiber nonwoven fabric, and the mesh cloth pull The limitation of tensile strength and elongation at break ensures sufficient structural strength of the inner liner, and the surface density of the mesh is limited so that it can have better bonding with the peripheral structural layer, so that the infiltrated resin can be It is fused with the resin of the structural layer and can be tightly bonded after curing to further enhance its structural strength.
(3)本发明的可拼接管件中，通过添加与结构层相同的防火性树脂，可以使得其经固化后能保证内衬层与结构层结合紧密，具有良好的结合强度和防火性能，而且树脂中添加的上述含量和颗粒大小的生物质填料可以使得其固化后拉伸强度大于50Mpa，巴氏硬度大于40，从而进一步优化管体强度以及防火性能。(3) In the splicable pipe member of the present invention, by adding the same fireproof resin as the structural layer, it can be ensured that the inner liner layer and the structural layer are tightly combined after curing, and has good bonding strength and fireproof performance, and resin The above-mentioned content and particle size of the biomass filler may be added so that the tensile strength after curing is greater than 50 MPa and the Barcol hardness is greater than 40, thereby further optimizing the strength of the tube and the fire resistance.
[附图说明][Description of the Drawings]
图1是按照本发明实施例的可拼接管件的结构示意图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a splicable pipe member in accordance with an embodiment of the present invention.
[具体实施方式] [detailed description]
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。此外，下面所描述的本实用新型各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
图1为本发明实施例的可拼接管件的结构示意图。如图1所示，本发明实施例的一种用于竹复合综合管廊的可拼接管件，其作为管廊的主要部件，用于通过连接件相互连通以拼接形成管廊。FIG. 1 is a schematic structural view of a splicable pipe member according to an embodiment of the present invention. As shown in FIG. 1 , a splicable pipe member for a bamboo composite integrated pipe gallery, which is a main component of a pipe gallery, is used for communicating with each other through a connecting member to form a pipe gallery.
如图1所示，直管的管体在径向由内至外依次包括内衬层、结构层和外防护层，其中内衬层和外防护层均用以保护结构层，使管体防火、防水、防渗漏、耐腐蚀，延长使用寿命。内衬层通过缠绕在管廊模具上形成，优选管模具上还设置有薄膜，以便于脱模。结构层为管体的主要增强结构，结构层通过竹材缠绕在所述内衬层上并通过添加防火性树脂粘结固化而成。外防护层通过在结构层上缠绕或喷涂涂覆而形成。As shown in Fig. 1, the pipe body of the straight pipe includes an inner lining layer, a structural layer and an outer protective layer in the radial direction from the inside to the outside, wherein the inner lining layer and the outer protective layer are used to protect the structural layer and prevent the pipe body from being fireproof. Waterproof, anti-leakage, corrosion resistance and long service life. The inner liner is formed by winding on a pipe mold, and preferably the film is further provided with a film to facilitate demolding. The structural layer is a main reinforcing structure of the tubular body, and the structural layer is wound on the inner liner layer by bamboo and is cured by adding a fireproof resin. The outer protective layer is formed by winding or spray coating on the structural layer.
内衬层与内部的管道管线以及结构层中竹材直接接触，其有效的防火性能非常关键，本发明实施例中，内衬层包括依次缠绕成层的竹纤维无纺布层、针织毡层和网格布层层叠组成。其中，竹纤维无纺布层由浸透防火性树脂的竹纤维无纺布通过在管廊模具上沿管体轴向螺旋缠绕多层而形成，例如可以缠绕为两层、三层或更多层，各层的缠绕方向和角度可以不同。具体缠绕时，将浸润或浸透了防火性树脂的无纺布端部贴附在管模具上，随着管模具的旋转和轴向移动，使得无纺布呈螺旋缠绕在管模具上，螺旋缠绕角度在70-90°之间，搭边宽度优选不少于无纺布幅宽的1/5，缠绕时还可以持续填充树脂，以使得树脂可完全填充浸润竹纤维无纺布实现全方位的安全包裹。The inner liner layer is in direct contact with the inner pipeline pipeline and the bamboo material in the structural layer, and the effective fireproof performance is very critical. In the embodiment of the invention, the inner liner layer comprises a bamboo fiber non-woven fabric layer, a knitted felt layer and a layer wound sequentially. The mesh layer is composed of layers. Wherein, the bamboo fiber nonwoven fabric layer is formed by a bamboo fiber nonwoven fabric impregnated with a fireproof resin by spirally winding a plurality of layers on the pipe mold mold along the axial direction of the pipe body, for example, may be wound into two, three or more layers. The winding direction and angle of each layer may be different. When entangled, the end of the non-woven fabric impregnated or impregnated with the fire-retardant resin is attached to the tube mold, and the non-woven fabric is spirally wound around the tube mold with the rotation and axial movement of the tube mold, and spirally wound. The angle is between 70-90°, and the width of the lap width is preferably not less than 1/5 of the width of the nonwoven fabric. The resin can be continuously filled during winding, so that the resin can be completely filled with the impregnated bamboo fiber nonwoven fabric to achieve all-round Safe package.
其中，竹纤维无纺布中的竹纤维质量百分比含量要求不小于98％，其面密度为40～50g/m2。 Among them, the bamboo fiber has a mass percentage content of not less than 98% and an areal density of 40 to 50 g/m 2 in the bamboo fiber nonwoven fabric.
针织毡层通过浸透防火性树脂的针织毡螺旋缠绕在竹纤维无纺布层上形成，缠绕方式可以与竹纤维无纺布层缠绕方式一致，缠绕层数也可以为两层、三层或多层，优选与竹纤维无纺布层缠绕层数相同。一个实施例中，针织毡优选是玻璃纤维制成，其具有优良的防火性能。The knitted felt layer is spirally wound on the bamboo fiber nonwoven layer by a knitted felt impregnated with a fireproof resin, and the winding manner can be the same as that of the bamboo fiber nonwoven layer, and the number of the wound layers can also be two, three or more. The layer is preferably the same as the number of layers of the bamboo fiber nonwoven fabric layer. In one embodiment, the knitted felt is preferably made of fiberglass that has excellent fire resistance.
网格布层由浸透防火性树脂的网格布在所述针织毡层上沿轴向螺旋缠绕多层而形成，例如可以缠绕为两层、三层或更多层，各层的缠绕方向和角度可以不同。具体缠绕时，将浸润或浸透了防火性树脂的网格布端部贴附在针织毡层上，随着管模具带动针织毡层的旋转和轴向移动，使得网格布呈螺旋缠绕在针织毡层上，螺旋缠绕角度在70-90°之间，搭边宽度优选不少于无纺布幅宽的1/5，缠绕时还可以持续填充树脂，以使得树脂可完全填充浸润竹纤维无纺布实现全方位的安全包裹。The mesh layer is formed by spirally winding a plurality of layers of the flame-retardant resin-impregnated mesh on the knitted felt layer, for example, two, three or more layers, and the winding direction of each layer and The angle can be different. During the specific winding, the end of the mesh cloth impregnated or impregnated with the fire-retardant resin is attached to the knitted felt layer, and as the tube mold drives the rotation and axial movement of the knitted felt layer, the mesh cloth is spirally wound in the knitting. On the felt layer, the spiral winding angle is between 70-90°, and the lap width is preferably not less than 1/5 of the width of the nonwoven fabric. The resin can be continuously filled during winding so that the resin can completely fill the infiltrated bamboo fiber. The woven fabric provides a full range of safe packages.
本方案中，网格布的面密度在40～50g/m2，其拉伸断裂强力不小于150N，其断裂伸长率不大于5％。In the present solution, the mesh fabric has an areal density of 40 to 50 g/m 2 , a tensile breaking strength of not less than 150 N, and an elongation at break of not more than 5%.
通过上述技术手段，一方面竹纤维无纺布和网格布通过浸润防火树脂使形成的竹纤维无纺布层和网格布层中树脂包裹相应的竹纤维无纺布和网格布，特别是通过限定竹纤维无纺布中的面密度以及网格布的面密度为40～50g/m2，可以保证防火树脂可完全填充浸润竹纤维无纺布和网格布，实现全方位的安全包裹，从而使得其防火性能得到有效保证，而且其中多层竹纤维无纺布层和网格布层的布置，使得其防火性能更好；另一方面，通过竹纤维无纺布中的面密度以及网格布的面密度的限定、以及竹纤维无纺布中的竹纤维质量百分比含量、网格布的拉伸断裂强力和断裂伸长率的限定，可以保证内衬层足够的结构强度，而且网格布的面密度的限定使得其可以与外围的结构层具有更好的结合性，使得浸润的树脂可以与结构层的树脂相互融合，在固化后可以紧密结合，进一步增强其结构强度。Through the above technical means, on the one hand, the bamboo fiber non-woven fabric and the mesh cloth are coated with the bamboo fiber nonwoven fabric and the mesh cloth by encapsulating the fireproof resin to encapsulate the corresponding bamboo fiber non-woven fabric and mesh cloth, in particular By limiting the areal density in the bamboo fiber nonwoven fabric and the surface density of the mesh cloth to 40 to 50 g/m 2 , it is ensured that the fireproof resin can be completely filled with the infiltrated bamboo fiber nonwoven fabric and the mesh cloth to achieve all-round safety. The package is so as to ensure the fireproof performance, and the arrangement of the multi-layer bamboo fiber nonwoven layer and the mesh layer makes the fireproof performance better; on the other hand, the areal density in the bamboo fiber nonwoven fabric And the definition of the areal density of the mesh cloth, the mass percentage of the bamboo fiber in the bamboo fiber nonwoven fabric, the tensile breaking strength of the mesh cloth and the elongation at break, which can ensure sufficient structural strength of the inner liner. Moreover, the surface density of the mesh cloth is limited such that it can have better bonding with the peripheral structural layer, so that the infiltrated resin can be fused with the resin of the structural layer, and can be tightly bonded after curing. Combined, further enhance its structural strength.
另外，防火性树脂中可以同时添加有生物质填料，其中填料的纤维丝含量大于40wt％，颗粒度在60-80目之间。树脂中添加的上述含量和颗粒 大小的生物质填料可以使得其固化后拉伸强度大于50Mpa，巴氏硬度大于40，从而进一步优化管体结构层的强度以及防火性能。In addition, the fireproof resin may be simultaneously added with a biomass filler, wherein the filler has a fiber filament content of more than 40% by weight and a particle size of between 60 and 80 mesh. The above content and particles added to the resin The size of the biomass filler can be such that the tensile strength after curing is greater than 50 MPa and the Barcol hardness is greater than 40, thereby further optimizing the strength and fire resistance of the tubular structural layer.
本发明中，防火性树脂为具有防火性的环氧树脂、氨基树脂、酚醛树脂、不饱和聚酯树脂、聚氨酯树脂中的一种或多种。In the present invention, the fireproof resin is one or more of an epoxy resin, an amino resin, a phenol resin, an unsaturated polyester resin, and a polyurethane resin having fire resistance.
外防护层的防水耐腐材料可以为聚脲树脂、聚酯树脂、聚氨酯树脂、环氧树脂、沥青、防水卷材中的一种或多种。The waterproof and corrosion resistant material of the outer protective layer may be one or more of polyurea resin, polyester resin, polyurethane resin, epoxy resin, asphalt, waterproofing membrane.
本发明的可拼接管件适用于相互拼接形成竹缠绕复合综合管廊，比如通过管件端部的插口与另一管件端部的承插口相互配合连接，或者通过其他连接件等拼装形成需求长度的管廊。The splicable pipe fitting of the invention is suitable for splicing to form a bamboo-wound composite integrated pipe porch, for example, through the socket of the end of the pipe fitting and the socket of the end of another pipe fitting, or assembling by other connecting pieces to form a pipe of a required length. gallery.
本领域的技术人员容易理解，以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。 Those skilled in the art will appreciate that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, and substitutions made within the spirit and principles of the present invention. Improvements and the like should be included in the scope of protection of the present invention.

Claims (10)

  1. 一种用于竹复合综合管廊的可拼接管件，该管件的管体包括在径向由内至外依次设置的内衬层、结构层和外防护层，其中所述结构层通过竹材缠绕在所述内衬层上并通过添加防火性树脂粘结固化而成，所述外防护层设置在所述结构层上，其特征在于，A splicable pipe member for a bamboo composite integrated pipe porch, the pipe body of the pipe member comprising an inner lining layer, a structural layer and an outer protective layer arranged in sequence from the inside to the outside, wherein the structural layer is entangled by bamboo The inner liner layer is formed by bonding and adding a fireproof resin, and the outer protective layer is disposed on the structural layer, wherein
    所述内衬层由依次缠绕成层的竹纤维无纺布层、针织毡层和网格布层层叠组成，其中，所述竹纤维无纺布层由浸透防火性树脂的竹纤维无纺布在管廊模具上沿管体轴向螺旋缠绕多层而形成，且所述竹纤维无纺布中的竹纤维质量百分比含量不小于98％，其面密度为40～50g/m2；The inner liner layer is composed of a bamboo fiber nonwoven fabric layer, a knitted felt layer and a mesh cloth layer which are sequentially wound into a layer, wherein the bamboo fiber nonwoven fabric layer is made of a bamboo fiber nonwoven fabric impregnated with a fireproof resin. Formed on the pipe mold mold by spirally winding a plurality of layers along the axial direction of the pipe body, and the bamboo fiber mass percentage in the bamboo fiber nonwoven fabric is not less than 98%, and the areal density is 40-50 g/m 2 ;
    所述网格布层由浸透防火性树脂的网格布在所述针织毡层上沿轴向螺旋缠绕多层而形成，且所述网格布的面密度在40～50g/m2，其拉伸断裂强力不小于150N，其断裂伸长率不大于5％。The mesh layer is formed by spirally winding a plurality of layers of a mesh cloth impregnated with a fireproof resin on the knitted felt layer in an axial direction, and the surface density of the mesh cloth is 40 to 50 g/m 2 . The tensile breaking strength is not less than 150 N, and the elongation at break is not more than 5%.
  2. 根据权利要求1所述的一种用于竹复合综合管廊的可拼接管件，其中，所述竹纤维无纺布层由浸透防火性树脂的竹纤维无纺布在管廊模具上沿管体轴向螺旋缠绕两层而形成。The splicable pipe member for a bamboo composite integrated pipe porch according to claim 1, wherein the bamboo fiber nonwoven fabric layer is made of a bamboo fiber nonwoven fabric impregnated with a fireproof resin on the pipe porch mold along the pipe body It is formed by axially winding two layers.
  3. 根据权利要求1或2所述的一种用于竹复合综合管廊的可拼接管件，其中，所述网格布层由浸透防火性树脂的网格布在针织毡层上沿轴向螺旋缠绕两层而形成。The splicable pipe member for a bamboo composite integrated pipe porch according to claim 1 or 2, wherein the mesh cloth layer is spirally wound axially on the knitted felt layer by a mesh cloth impregnated with a fireproof resin. Formed in two layers.
  4. 根据权利要求1至3中任一项所述的一种用于竹复合综合管廊的可拼接管件，其中竹纤维无纺布层、针织毡层以及网格布层中各螺旋缠绕的搭边不重合。The splicable pipe member for a bamboo composite integrated pipe gallery according to any one of claims 1 to 3, wherein the bamboo fiber non-woven fabric layer, the knitted felt layer and the spirally wound edge in the mesh cloth layer Do not coincide.
  5. 根据权利要求1至4中任一项所述的一种用于竹复合综合管廊的可拼接管件，其中，所述结构层上添加的防火性树脂与内衬层上添加的防火性树脂相同。A splicable pipe member for a bamboo composite integrated pipe porch according to any one of claims 1 to 4, wherein the fireproof resin added to the structural layer is the same as the fireproof resin added to the inner lining layer .
  6. 根据权利要求1至5中任一项所述的一种用于竹复合综合管廊的可 拼接管件，其中，所述防火性树脂为具有防火性的环氧树脂、氨基树脂、酚醛树脂、不饱和聚酯树脂和聚氨酯树脂中的一种或几种。A bamboo composite composite pipe gallery according to any one of claims 1 to 5 The spliced pipe member, wherein the fireproof resin is one or more of a fireproof epoxy resin, an amino resin, a phenol resin, an unsaturated polyester resin, and a urethane resin.
  7. 根据权利要求1至6中任一项所述的一种用于竹复合综合管廊的可拼接管件，其中，所述防火性树脂中添加有生物质填料，其中填料的纤维丝含量大于40wt％，颗粒度在60-80目之间。The splicable pipe member for a bamboo composite integrated pipe porch according to any one of claims 1 to 6, wherein the fireproof resin is added with a biomass filler, wherein the filler has a fiber filament content of more than 40% by weight. The particle size is between 60-80 mesh.
  8. 根据权利要求1至7中任一项所述的一种用于竹复合综合管廊的可拼接管件，其中，所述内衬层的厚度优选为5±0.5mm。A splicable tubular member for a bamboo composite integrated pipe gallery according to any one of claims 1 to 7, wherein the thickness of the inner liner layer is preferably 5 ± 0.5 mm.
  9. 根据权利要求1至8中任一项所述的一种用于竹复合综合管廊的可拼接管件，其中，所述网格布优选为涤纶。A splicable tubular member for a bamboo composite integrated pipe gallery according to any one of claims 1 to 8, wherein the mesh cloth is preferably polyester.
  10. 一种管廊，其由权利要求1至9中任一项所述的可拼接管件通过连接件依次拼接形成。 A pipe porch formed by splicing a splicable pipe member according to any one of claims 1 to 9 through a joint.
PCT/CN2016/110103 2016-10-31 2016-12-15 Splicing pipe for comprehensive bamboo composite pipe gallery, and pipe gallery comprising same WO2018076493A1 (en)

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