WO2020191822A1 - 复合增强缠绕管 - Google Patents

复合增强缠绕管 Download PDF

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Publication number
WO2020191822A1
WO2020191822A1 PCT/CN2019/082435 CN2019082435W WO2020191822A1 WO 2020191822 A1 WO2020191822 A1 WO 2020191822A1 CN 2019082435 W CN2019082435 W CN 2019082435W WO 2020191822 A1 WO2020191822 A1 WO 2020191822A1
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Prior art keywords
wall
reinforced
bracket
hollow pipe
pipe
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PCT/CN2019/082435
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English (en)
French (fr)
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高林
梁强
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淄博金洋达塑业有限公司
广东坤达管业有限公司
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Publication of WO2020191822A1 publication Critical patent/WO2020191822A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement

Definitions

  • the utility model belongs to the technical field of municipal engineering, and specifically relates to a composite reinforced winding pipe, which is composited by HDPE and PVC.
  • the utility model patent with the authorized announcement number CN202868109U discloses a double-hole plastic-steel wall drainage pipe, including special-shaped steel. There are three ring holes in the pipe wall. The special-shaped steel is placed in the first ring hole and abuts against the first On the upper part of the ring hole, the outer surface of the pipe wall corresponding to the first ring hole is a smooth plane shape. The second ring hole and the third ring hole are plastic hollow square holes. The plastic steel drainage pipe is used, and the external pressure is removed from the pipe. The special-shaped steel in the wall bears, and the pipe wall where there is no special-shaped steel bears very little pressure.
  • plastic-steel drainage pipe can greatly improve the ring stiffness of the pipe, the steel will slowly corrode during use, which will greatly reduce the ring stiffness of the pipe and cause the installed pipeline to collapse; in addition, the expansion of plastic and steel The coefficients are different. In use, as the climate changes, the internal stress of the pipe is destroyed, which is likely to cause problems such as disconnection of the pipe.
  • the invention patent with publication number CN1869348A discloses a HDPE, PVC plastic-plastic composite winding pipe with a winding pipe body.
  • the pipe wall of the winding pipe body is composed of a spirally wound rectangular tubular hollow strip and HDPE plastic filler.
  • HDPE The plastic filler is bonded and filled in the sidewall gaps between the spirals of the hollow strip.
  • the tube wall of the hollow strip is composed of a PVC plastic layer, a composite adhesive bonding layer and an HDPE plastic layer from the inside to the outside.
  • the winding pipe has the advantages of corrosion resistance and aging resistance, but the structure is complex, the ring stiffness of the pipe is low, and the ring flexibility is poor.
  • the purpose of the utility model is to provide a composite reinforced winding pipe, which adopts a PVC reinforced framework to replace traditional steel materials, and the winding pipe is composited by HDPE materials and PVC materials. It aims to solve the problems of low ring rigidity and poor ring flexibility of the pipeline in the prior art; plastic and steel have different expansion coefficients, and the pipeline is easy to deform; steel is easy to corrode, causing the pipeline to collapse.
  • the present invention provides a composite reinforced winding pipe, comprising a hollow pipe wall and a reinforced skeleton, the reinforced skeleton is arranged in the hollow pipe wall; the outer wall of the hollow pipe wall is arranged Through hole, the width of the through hole is smaller than the width of the hollow tube wall; the top of the reinforced frame is flush with the outer wall, and the bottom of the reinforced frame is bonded or connected with the inner wall of the hollow tube wall Card slot connection; the outer surface of the hollow tube wall is adhesively coated.
  • a strong PVC support frame is used, embedded in the HDPE hollow pipe wall, and the two are combined to bear the force together.
  • Both of them are made of plastic materials, and the coefficient of thermal expansion and shrinkage are relatively close. When the temperature changes, the deformation of the two is also close. There will be no local stress imbalance, so that the pipe can reach the optimal state of joint stress, which greatly improves The overall practicality of the pipe.
  • two ring holes are provided in the hollow tube wall, the outer wall of at least one of the two ring holes is provided with a through hole, and the reinforcement frame is provided in the ring hole where the through hole is provided; a plurality of hollow tube walls They are connected vertically by HDPE hot melt material.
  • the width, length, and height of the two ring holes are equal, and the wall thicknesses of the two ring holes are equal; the width of the through hole is smaller than the width of the ring hole, and the length of the remaining outer wall on both sides of the through hole is equal.
  • the outer walls of the ring holes on both sides are provided with through holes, and the reinforcement frame is provided in the ring holes on both sides; a plurality of hollow tube walls They are connected vertically by HDPE hot melt material.
  • the width, length, and height of the ring holes on both sides are equal; the width of the middle ring hole is smaller than the width of the ring holes on both sides; the wall thickness of the three ring holes is equal; the width of the through hole is smaller than the width of the ring hole, and there are remaining on both sides of the through hole
  • the length of the outer wall is equal.
  • the reinforced frame includes a horizontal bracket and an inclined bracket, and the inclined bracket is arranged below the horizontal bracket.
  • three parallel reinforcing ribs are arranged at equal intervals inside the inclined bracket, and the reinforcing ribs are parallel to the inclined bracket.
  • the reinforced frame further includes a reinforced bracket, and the reinforced bracket is arranged vertically below the horizontal bracket.
  • a bottom bracket is provided at the bottom of the inclined bracket and/or the reinforced bracket.
  • the hollow pipe wall is made of HDPE material
  • the reinforcing frame is made of PVC material
  • the outer surface of the hollow pipe wall is bonded with a layer of HDPE material.
  • PVC material polyvinyl chloride
  • HDPE material high density polyethylene
  • the shape of the reinforcement skeleton is varied. If the inner diameter of the winding pipe does not exceed 500mm, the shape of the PVC skeleton is bench-like, including horizontal brackets and inclined brackets; if the inner diameter of the winding pipe is between 500-800mm, the shape of the PVC skeleton is a bench-like shape with a reinforced bracket.
  • the reinforced bracket is arranged vertically below the horizontal bracket; if the inner diameter of the winding pipe is between 800-1000mm, the shape of the PVC skeleton is a bench shape with a reinforced bracket, including horizontal The bracket, the inclined bracket and two reinforced brackets, the two reinforced brackets are arranged vertically below the horizontal bracket; if the inner diameter of the winding pipe exceeds 1000mm, the shape of the PVC skeleton is M-shaped, including the horizontal bracket and two sets of inclined brackets.
  • the thickness of the HDPE hollow pipe wall and the width of the inner wall of the ring hole in the composite reinforced winding pipe of the utility model; the thickness of the PVC frame, the angle between the horizontal bracket and the inclined bracket, the gap between the horizontal bracket in the through hole of the HDPE hollow pipe wall , The width of the horizontal support, the thickness of the heat-clad HDPE material layer and other parameters are coordinated and synergistically. Several important parameters must conform to a certain relationship. Only in this way can the effect recorded in the utility model be achieved.
  • the thickness of the HDPE hollow pipe wall h 1.5-2.0mm;
  • the thickness of the PVC skeleton H (1.5-4)h;
  • the winding pipe of the utility model is an all-plastic composite pipe.
  • the PVC frame replaces the traditional steel plate to improve the ring stiffness and ring flexibility of the pipe.
  • the PVC frame is extremely corrosion-resistant, thereby solving the problem that the traditional plastic-steel composite pipe is slowly corroded in actual use. This fatal defect avoids the serious decrease in the stiffness of the pipe ring and the consequent collapse of the pipeline.
  • the outer surface of the entire pipeline is in a smooth shape, that is, the place where the PVC reinforced skeleton is placed is a smooth shape, and the place where the PVC reinforced skeleton is not placed is also a smooth shape.
  • the HDPE hollow pipe wall and the PVC reinforced skeleton bear the force together.
  • the PVC reinforced skeleton strengthens the ability of the pipe wall to withstand external pressure. Most of the pressure is borne by the PVC reinforced skeleton in the pipe wall, which greatly improves the ring stiffness and ring flexibility of the pipe.
  • the preparation process of the composite reinforced winding pipe of the present invention includes the following steps according to the sequence:
  • Step 1 Use an extruder to produce PVC reinforced skeleton, after twin-screw extrusion, shaping, cooling, and winding into rolls for use;
  • Step 2 Use an extruder to produce HDPE hollow strips, which are extruded by a single screw, shaped, cooled, and wound into disks for later use;
  • Step 3 Wrap the HDPE hollow sheet and the PVC reinforced frame on a molding machine to form a composite, and heat-coat a layer of HDPE material on the outer surface to form a composite reinforced winding pipe.
  • the winding pipe improves the shortcomings of low rigidity and poor ring flexibility of the plastic steel pipe in the prior art.
  • a PVC reinforced frame is added to the wall of the HDPE hollow pipe. The combination of the two can improve the ring rigidity and ring flexibility of the pipe.
  • the mechanical properties of the pipe are greatly improved, and it is very suitable for drainage and sewage under various conditions.
  • the wound tube will not rust during use, and will not crack due to uneven thermal expansion and contraction.
  • composite steel pipes such as steel belt reinforced corrugated pipes, double flat-wall composite winding pipes, plastic steel winding pipes, etc.
  • the steel plates composited in the pipe are different in use.
  • a certain degree of rust will corrode after a certain number of years of use, causing pipeline collapse and blockage, road surface collapse, and other serious safety accidents.
  • the winding pipe of the present invention just compensates for the shortcomings of the current pipes. It has high ring stiffness and ring flexibility, and will not crack due to excessive temperature difference and different expansion coefficients, and will not be affected by moisture (water), sea water, and sewage. , Chemical water and other corrosive rust damage.
  • the overall yield strength of the pipe is increased to more than 350MPa, the tensile strength is increased to more than 800MPa, the elongation is increased to more than 40%, and the ring stiffness is increased to more than 20KN/m 2 .
  • Figure 1 is a schematic structural view of a preferred embodiment of a composite reinforced winding pipe according to the present invention
  • FIG. 2 is a structural diagram of the PVC reinforced skeleton in the embodiment shown in FIG. 1 of the composite reinforced winding pipe according to the present invention.
  • the shape of the PVC reinforced skeleton is bench-shaped, including horizontal brackets and inclined brackets;
  • FIG 3 is a structural schematic diagram of the PVC reinforced skeleton in the embodiment shown in Figure 1 of the composite reinforced winding pipe according to the present invention.
  • the shape of the PVC reinforced skeleton is a bench shape with reinforced brackets, including a horizontal bracket, an inclined bracket and a reinforced Bracket
  • FIG 4 is a structural diagram of the PVC reinforced skeleton in the embodiment shown in Figure 1 of the composite reinforced winding pipe according to the present invention.
  • the shape of the PVC reinforced skeleton is a bench shape with reinforced brackets, including a horizontal bracket, an inclined bracket and two reinforcements Bracket
  • FIG 5 is a structural schematic diagram of the PVC reinforced skeleton in the embodiment shown in Figure 1 of the composite reinforced winding pipe according to the present invention.
  • the shape of the PVC reinforced skeleton is M-shaped and includes a horizontal bracket and two sets of inclined brackets;
  • FIG 6 is a structural schematic diagram of the HDPE hollow pipe wall in the embodiment shown in Figure 1 of the composite reinforced winding pipe according to the present invention.
  • Fig. 7 is a structural schematic diagram of the combined connection of multiple hollow pipe walls in the embodiment shown in Fig. 1 of the composite reinforced wound pipe according to the present invention.
  • the composite reinforced winding pipe of the present invention includes a hollow pipe wall and a reinforced frame, the reinforced frame is arranged in the hollow pipe wall; the outer wall of the hollow pipe wall is arranged Through hole, the width of the through hole is smaller than the width of the hollow tube wall; the top of the reinforced frame is flush with the outer wall, and the bottom of the reinforced frame is bonded or connected with the inner wall of the hollow tube wall Card slot connection; the outer surface of the hollow tube wall is adhesively coated.
  • the outer surface of the hollow tube wall is thermally covered with a HDPE material layer; a plurality of hollow tube walls are vertically connected by HDPE hot melt material.
  • the hollow pipe wall is made of HDPE material, and the reinforced skeleton is made of PVC material; the outer surface of the hollow pipe wall is bonded with a layer of HDPE material.
  • PVC material polyvinyl chloride
  • HDPE material high density polyethylene
  • the reinforced frame includes a horizontal bracket and an inclined bracket, and the inclined bracket is arranged below the horizontal bracket.
  • the reinforced frame further includes a reinforced bracket which is vertically arranged below the horizontal bracket.
  • a bottom bracket is provided at the bottom of the inclined bracket and/or the reinforced bracket.
  • the shape of the PVC skeleton is bench-like, including horizontal brackets and inclined brackets.
  • the shape of the PVC skeleton is a bench shape with a reinforced bracket, including a horizontal bracket, an inclined bracket, and a reinforced bracket.
  • the reinforced bracket is vertically arranged horizontally. Below the bracket.
  • the shape of the PVC skeleton is a bench with reinforced brackets, including a horizontal bracket, an inclined bracket and two reinforced brackets.
  • the two reinforced brackets are arranged vertically Below the horizontal support.
  • the shape of the PVC skeleton is M-shaped, including a horizontal bracket and two sets of inclined brackets.
  • two ring holes are provided in the wall of the hollow tube, a through hole is provided on the outer wall of at least one of the two ring holes, and the reinforcing frame is provided in the ring hole where the through hole is provided.
  • the width, length, and height of the two ring holes are equal, and the wall thicknesses of the two ring holes are equal; the width of the through hole is smaller than the width of the ring hole, and the length of the remaining outer wall on both sides of the through hole is equal.
  • the outer walls of the ring holes on both sides are provided with through holes, and the reinforcing frame is provided in the ring holes on both sides.
  • the width, length, and height of the ring holes on both sides are equal; the width of the middle ring hole is smaller than the width of the ring holes on both sides; the wall thickness of the three ring holes is equal; the width of the through hole is smaller than the width of the ring hole, and there are remaining on both sides of the through hole
  • the length of the outer wall is equal.
  • a plurality of hollow tube walls are connected vertically in turn to form a composite reinforced winding tube, and two adjacent hollow tube walls are bonded and connected by HDPE hot melt.
  • the thickness of the HDPE hollow pipe wall and the width of the inner wall of the annular hole in the composite reinforced winding pipe of this embodiment; the thickness of the PVC skeleton, the angle between the horizontal bracket and the inclined bracket, the gap between the horizontal bracket in the through hole of the HDPE hollow pipe wall , The width of the horizontal support, the thickness of the HDPE material layer and other parameters are coordinated and synergistic. Several important parameters must conform to a certain relationship. Only in this way can the mechanical properties of the PVC skeleton and the HDPE hollow pipe wall be improved, and It can greatly improve the overall mechanical properties of the wound pipe after the PVC skeleton and the HDPE hollow pipe wall are compounded.
  • the thickness of the HDPE hollow pipe wall h 1.5mm
  • Step 1 Use an extruder to produce PVC reinforced skeleton, after twin-screw extrusion, shaping, cooling, and winding into rolls for use;
  • Step 2 Use an extruder to produce HDPE hollow strips, which are extruded by a single screw, shaped, cooled, and wound into disks for later use;
  • Step 3 Wrap the HDPE hollow sheet and the PVC reinforced frame on a molding machine to form a composite, and heat-coat a layer of HDPE material on the outer surface to form a composite reinforced winding pipe.
  • the winding pipe in this embodiment is an all-plastic composite pipe.
  • the PVC skeleton replaces the traditional steel plate to improve the ring stiffness and ring flexibility of the pipe.
  • the PVC skeleton is extremely corrosion-resistant, thereby solving the problem that the traditional plastic-steel composite pipe is slowly corroded in actual use. This fatal defect avoids the serious decrease in the stiffness of the pipe ring and the consequent collapse of the pipeline.
  • the outer surface of the entire pipeline is in a smooth shape, that is, the place where the PVC reinforced skeleton is placed is a smooth shape, and the place where the PVC reinforced skeleton is not placed is also a smooth shape.
  • the HDPE hollow pipe wall and the PVC reinforced skeleton bear the force together.
  • the PVC reinforced skeleton strengthens the ability of the pipe wall to withstand external pressure. Most of the pressure is borne by the PVC reinforced skeleton in the pipe wall, which greatly improves the ring stiffness and ring flexibility of the pipe.
  • the yield strength of the wound pipe after the combination of the two materials reaches 350MPa or more
  • the tensile strength reaches 800MPa or more
  • the elongation reaches 40% or more
  • the ring stiffness reaches Above 20KN/m 2
  • the pipe is smooth, without reverse bending and cracking.
  • the structure, the positional relationship between the components, the beneficial effects, etc. are the same as those of the first embodiment, the difference is:
  • the thickness of the HDPE hollow pipe wall h 2mm
  • the structure, the positional relationship between the components, the beneficial effects, etc. are the same as those of the first embodiment, the difference is:
  • the thickness of the HDPE hollow pipe wall h 1.7mm
  • the structure, the positional relationship between the components, the beneficial effects, etc. are the same as those of the first embodiment, the difference is:
  • the thickness of the HDPE hollow pipe wall h 1.9mm
  • the structure, the positional relationship between the components, the beneficial effects, etc. are the same as those of the first embodiment, the difference is:
  • the thickness of the HDPE hollow pipe wall h 1.6mm;
  • Embodiment 6 is a diagrammatic representation of Embodiment 6
  • the structure, the positional relationship between the components, the beneficial effects, etc. are the same as those of the first embodiment, the difference is:
  • the thickness of the HDPE hollow pipe wall h 1.8mm
  • the structure, the positional relationship between the components, the beneficial effects, etc. are the same as those of the first embodiment, the difference is:
  • the thickness of the HDPE hollow pipe wall h 1.65mm
  • Embodiment 8 is a diagrammatic representation of Embodiment 8
  • the structure, the positional relationship between the components, and the beneficial effects are the same as those of the first to seventh embodiments, except for:
  • Three parallel reinforcing ribs are arranged at equal intervals inside the horizontal support, and the reinforcing ribs are perpendicular to the horizontal support.
  • Three parallel reinforcing ribs are arranged at equal intervals inside the inclined bracket, and the reinforcing ribs are parallel to the inclined bracket.
  • composite reinforced winding tube of the present invention includes any combination of the content of the invention and the specific implementation part of the description of the present invention and the parts shown in the drawings. The length is limited and the description is concise. It does not describe each of these combinations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Abstract

一种复合增强缠绕管(1)，包括中空管壁(2)和增强骨架(3)，增强骨架(3)设置在中空管壁(2)中，中空管壁(2)的外壁设置通孔(22)，通孔(22)的宽度小于中空管壁(2)的宽度；增强骨架(3)的顶部与外壁(21)平齐，增强骨架(3)的底部与中空管壁(2)的内壁粘合连接或通过卡槽连接；中空管壁(2)的外表面粘合覆着层。中空管壁(2)为HDPE材料，增强骨架为PVC材料，中空管壁(2)的外表面热覆HDPE材料层(5)。该复合增强缠绕管(1)同时具有较高的环刚度和环柔性。

Description

复合增强缠绕管 技术领域
本实用新型属于市政工程技术领域，具体涉及一种复合增强缠绕管，该缠绕管由HDPE和PVC两种材料复合而成。
背景技术
在市政工程基础设施中，排水排污等地下设施所使用的管道多为纯HDPE(高密度聚乙烯)结构壁管，但是纯HDPE结构壁管的环刚度低、单位米重大、生产效率低。另外纯HDPE结构壁管的强度低、环柔性差、存在分层，且非常容易出现结构壁连接处脱开的现象。
为了改善上述现象，出现了一些复合管，该类管道的管壁由塑料和钢材复合缠绕而成，其技术缺陷是钢材容易被腐蚀，因此该类管道在使用中钢材会慢慢被腐蚀掉，从而使管道的环刚度受到严重破坏，导致安装好的管线发生塌陷。另外由于该类管道中塑料和钢材的膨胀系数不同，在实际使用中随着气候的变化，管材内部应力被破坏，容易造成管材脱节等问题。现有技术中也存在一些由塑料和塑料复合而成的缠绕管，但是结构复杂，且没有适当的结构参数，环刚度仍然很低，无法满足当前市政工程设施的需求。
授权公告号为CN202868109U的实用新型专利公开了一种双孔塑钢壁排水管，包括异形钢，管道的管壁中有三个环孔，异形钢置于第一环孔中，且抵接于第一环孔的上部，管壁对应于第一环孔处的外表面为光平面形状，第二环孔和第三环孔为塑料空心四方孔，采用该塑钢排水管，来自于外界的压力由管壁中的异形钢承受，没有放置异形钢的管壁地方承受的压力很小。虽然该塑钢排水管能大大提高管道的环刚度，但是在使用过程中，钢材会慢慢腐蚀，从而使管道的环刚度大幅度降低，导致安装好的管线发生塌陷；此外，塑料和钢材的膨胀系数不同，在使用中随着气候的变化，管材内部应力被破坏，容易造成管材脱节等问题。
公开号为CN1869348A的发明专利公开了一种HDPE、PVC塑塑复合缠绕管，具有缠绕管本体，缠绕管本体的管壁由呈螺旋缠绕状的矩形管状空心带材和HDPE塑料填充体构成，HDPE塑料填充体粘结并填充在空心带材的各螺旋之间的侧壁间隙处，空心带材的管壁由内至外分别由PVC塑 料层、复合胶粘结层和HDPE塑料层构成。该缠绕管具有耐腐蚀、耐老化等优点，但是结构复杂，管材的环刚度较低、环柔性较差。
发明内容
本实用新型的目的在于提供一种复合增强缠绕管，采用PVC增强骨架替代传统的钢材料，缠绕管由HDPE材料和PVC材料复合而成。旨在解决现有技术中管道的环刚度低、环柔性差；塑料与钢材膨胀系数不同，管道易变形；钢材易腐蚀，导致管道塌陷等问题。
为解决现有技术中存在的问题，本实用新型提供一种复合增强缠绕管，包括中空管壁和增强骨架，所述增强骨架设置在所述中空管壁中；所述中空管壁的外壁设置通孔，所述通孔的宽度小于所述中空管壁的宽度；所述增强骨架的顶部与所述外壁平齐，所述增强骨架的底部与所述中空管壁的内壁粘合连接或通过卡槽连接；所述中空管壁的外表面粘合覆着层。
采用强度较高的PVC支撑骨架，镶嵌在HDPE中空管壁中，二者结合，共同受力。充分利用PVC材料的高强度、高承载力，达到大大提高环刚度和环柔性的目的。充分利用HDPE材料的柔韧性，很好地保护了PVC增强骨架，大大提高了管材整体的使用安全性。二者都是塑料材质，热膨胀系数和收缩率都比较接近，在温度发生变化时，二者变形也接近，不会产生局部应力不均衡，使管材达到最优共同受力的状态，大大提高了管材整体的实用性。
优选的是，所述中空管壁中设置两个环孔，两个环孔中至少有一个环孔的外壁设置通孔，设置通孔的环孔中设置所述增强骨架；多个中空管壁之间通过HDPE热熔料竖向连接。两个环孔的宽度、长度、高度相等，两个环孔的壁厚相等；通孔的宽度小于环孔的宽度，通孔两侧余留的外壁长度相等。
在上述任一方案中优选的是，所述中空管壁中设置三个环孔，两侧环孔的外壁均设置通孔，两侧环孔中均设置所述增强骨架；多个中空管壁之间通过HDPE热熔料竖向连接。两侧环孔的宽度、长度、高度相等；中间环孔的宽度小于两侧环孔的宽度；三个环孔的壁厚相等；通孔的宽度小于环孔的宽度，通孔两侧余留的外壁长度相等。
在上述任一方案中优选的是，所述增强骨架包括水平支架和斜支架，所述斜支架设置在所述水平支架的下方。
在上述任一方案中优选的是，所述水平支架内部等间距设置三根平行的加强筋，该加强筋与所述水平支架垂直。
在上述任一方案中优选的是，所述斜支架内部等间距设置三根平行的加强筋，该加强筋与所述斜支架平行。
在上述任一方案中优选的是，所述增强骨架还包括加强支架，所述加强支架垂直设置在所述水平支架的下方。
在上述任一方案中优选的是，所述斜支架和/或加强支架的底部设置底部支架。
在上述任一方案中优选的是，所述中空管壁为HDPE材料，所述增强骨架为PVC材料；所述中空管壁的外表面粘合HDPE材料层。PVC材料(聚氯乙烯)和HDPE材料(高密度聚乙烯)都是现有材料。
增强骨架的形状多种多样。若缠绕管的内径不超过500mm，则PVC骨架的形状为板凳状，包括水平支架和斜支架；若缠绕管的内径在500-800mm之间，则PVC骨架的形状为具有加强支架的板凳状，包括水平支架、斜支架和一根加强支架，该加强支架垂直设置在水平支架的下方；若缠绕管的内径在800-1000mm之间，则PVC骨架的形状为具有加强支架的板凳状，包括水平支架、斜支架和两根加强支架，两根加强支架垂直设置在水平支架的下方；若缠绕管的内径超过1000mm，则PVC骨架的形状为M形，包括水平支架和两组斜支架。
本实用新型的复合增强缠绕管中HDPE中空管壁的厚度、环孔内壁的宽度；PVC骨架的厚度、水平支架与斜支架之间的夹角、水平支架在HDPE中空管壁通孔中的间隙、水平支架的宽度、热覆HDPE材料层的厚度等各个参数之间相互配合，协同作用，几个重要参数必须符合一定关系，只有这样才能达到本实用新型记载的效果。
HDPE中空管壁的厚度h＝1.5-2.0mm；
PVC骨架的厚度H＝(1.5-4)h；
PVC骨架中水平支架与斜支架之间的夹角α＝20-80°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝(0.2-0.8)H；
HDPE中空管壁外表面热覆HDPE材料层的厚度为A，h﹤A﹤H且A＝(1.2-2.5)h。
本实用新型的缠绕管为全塑料复合管，由PVC骨架代替传统钢板来提高管道的环刚度和环柔性，PVC骨架又极耐腐蚀，从而解决了传统塑钢复 合管在实际使用中钢板慢慢腐蚀这一致命缺陷，避免了管道环刚度严重下降以及管线因此发生塌陷的问题。整根管道的外表面呈光平形状，即放置有PVC增强骨架的地方呈光平形状，没有放置PVC增强骨架的地方也呈光平形状。当管道埋在地下后，管壁所受的压力集中到管壁的上表面处，HDPE中空管壁和PVC增强骨架二者共同受力，PVC增强骨架加强了管壁承受外部压力的能力，管道的大部分压力由管壁中的PVC增强骨架来承受，这样大大提高了管道的环刚度和环柔性。
本实用新型的复合增强缠绕管的制备工艺，其按照先后顺序包括以下步骤：
步骤一：利用挤出机生产PVC增强骨架，经过双螺杆挤出、定型、冷却，缠绕成卷待用；
步骤二：利用挤出机生产HDPE中空板带，经过单螺杆挤出、定型、冷却，缠绕成盘待用；
步骤三：将HDPE中空板带和PVC增强骨架在成型机上缠绕复合成型，并在外表面热敷一层HDPE材料，形成复合增强缠绕管。
本实用新型的复合增强缠绕管具有如下有益效果：
(1)该缠绕管改进了现有技术中塑钢管环刚度低、环柔性差的缺点，在HDPE中空管壁中加入PVC增强骨架，二者结合既提高管道的环刚度又提高管道的环柔度，使管材的力学性能大大提高，非常适合各种状态下的排水、排污。
(2)该缠绕管在使用过程中不会生锈、不会因热胀冷缩不均衡而开裂。目前，工程要求环刚度较高的项目大多采用复合钢板的管材(如钢带增强波纹管、双平壁复合缠绕管、塑钢缠绕管等)，其复合在管材内的钢板在使用中都存在不同程度的锈蚀，当使用一定年限后就会全部腐蚀掉，使管道垮塌造成堵塞，路面造成塌陷，还可能发生其他严重的安全事故。本发明的缠绕管正好弥补了目前管材的缺点，既有较高的环刚度和环柔性，又不会因温差过大、膨胀系数不同而发生开裂，也不会受潮(水)、海水、污水、化工水等腐蚀性生锈损坏。
(3)该缠绕管在制备过程中，在管材的外表面整体敷设了一层HDPE材料，使管材形成整体受力状态，解决了缠绕管缠绕接缝容易脱开的问题，大大提高了管材的质量。
(4)由于PVC增强骨架形状及各个参数的改进，使管材的整体屈服 强度提高到350MPa以上，抗拉强度提高到800MPa以上，延伸率提高到40％以上，环刚度提高到20KN/m 2以上。
附图说明
图1为按照本实用新型的复合增强缠绕管的一优选实施例结构示意图；
图2为按照本实用新型的复合增强缠绕管的图1所示实施例中PVC增强骨架的结构示意图，PVC增强骨架的形状为板凳状，包括水平支架和斜支架；
图3为按照本实用新型的复合增强缠绕管的图1所示实施例中PVC增强骨架的结构示意图，PVC增强骨架的形状为具有加强支架的板凳状，包括水平支架、斜支架和一根加强支架；
图4为按照本实用新型的复合增强缠绕管的图1所示实施例中PVC增强骨架的结构示意图，PVC增强骨架的形状为具有加强支架的板凳状，包括水平支架、斜支架和两根加强支架；
图5为按照本实用新型的复合增强缠绕管的图1所示实施例中PVC增强骨架的结构示意图，PVC增强骨架的形状为M形，包括水平支架和两组斜支架；
图6为按照本实用新型的复合增强缠绕管的图1所示实施例中HDPE中空管壁的结构示意图；
图7为按照本实用新型的复合增强缠绕管的图1所示实施例中多个中空管壁组合连接的结构示意图。
图中标注说明：1-复合增强缠绕管，2-中空管壁，21-外壁，22-通孔，23-环孔，3-增强骨架，31-顶部，32-水平支架，33-斜支架，34-加强支架，35-底部支架，36-水平支架与斜支架之间的夹角，4-间隙，5-HDPE材料层，6-HDPE热熔料。
具体实施方式
为了更进一步了解本实用新型的发明内容，下面将结合具体实施例详细阐述本实用新型。
实施例一：
如图1所示，按照本实用新型的复合增强缠绕管的一实施例，其包括中空管壁和增强骨架，所述增强骨架设置在所述中空管壁中；所述中空管 壁的外壁设置通孔，所述通孔的宽度小于所述中空管壁的宽度；所述增强骨架的顶部与所述外壁平齐，所述增强骨架的底部与所述中空管壁的内壁粘合连接或通过卡槽连接；所述中空管壁的外表面粘合覆着层。所述中空管壁的外表面热覆HDPE材料层；多个中空管壁之间通过HDPE热熔料竖向连接。
所述中空管壁为HDPE材料，所述增强骨架为PVC材料；所述中空管壁的外表面粘合HDPE材料层。PVC材料(聚氯乙烯)和HDPE材料(高密度聚乙烯)都是现有材料。
如图2-5所示，增强骨架的形状多种多样。所述增强骨架包括水平支架和斜支架，所述斜支架设置在所述水平支架的下方。所述增强骨架还包括加强支架，所述加强支架垂直设置在所述水平支架的下方。所述斜支架和/或加强支架的底部设置底部支架。
如图2所示，若缠绕管的内径不超过500mm，则PVC骨架的形状为板凳状，包括水平支架和斜支架。如图3所示，若缠绕管的内径在500-800mm之间，则PVC骨架的形状为具有加强支架的板凳状，包括水平支架、斜支架和一根加强支架，该加强支架垂直设置在水平支架的下方。如图4所示，若缠绕管的内径在800-1000mm之间，则PVC骨架的形状为具有加强支架的板凳状，包括水平支架、斜支架和两根加强支架，两根加强支架垂直设置在水平支架的下方。如图5所示，若缠绕管的内径超过1000mm，则PVC骨架的形状为M形，包括水平支架和两组斜支架。
如图6所示，所述中空管壁中设置两个环孔，两个环孔中至少有一个环孔的外壁设置通孔，设置通孔的环孔中设置所述增强骨架。两个环孔的宽度、长度、高度相等，两个环孔的壁厚相等；通孔的宽度小于环孔的宽度，通孔两侧余留的外壁长度相等。
还可以在中空管壁中设置三个环孔，两侧环孔的外壁均设置通孔，两侧环孔中均设置所述增强骨架。两侧环孔的宽度、长度、高度相等；中间环孔的宽度小于两侧环孔的宽度；三个环孔的壁厚相等；通孔的宽度小于环孔的宽度，通孔两侧余留的外壁长度相等。
如图7所示，将多个中空管壁依次竖向连接起来形成复合增强缠绕管，相邻两个中空管壁之间通过HDPE热熔料粘合连接。
本实施例的复合增强缠绕管中HDPE中空管壁的厚度、环孔内壁的宽度；PVC骨架的厚度、水平支架与斜支架之间的夹角、水平支架在HDPE 中空管壁通孔中的间隙、水平支架的宽度、热覆HDPE材料层的厚度等各个参数之间相互配合，协同作用，几个重要参数必须符合一定关系，只有这样才能分别提高PVC骨架和HDPE中空管壁的力学性能，并且能够大幅度提高PVC骨架与HDPE中空管壁复合后的缠绕管的整体力学性能。
HDPE中空管壁的厚度h＝1.5mm；
PVC骨架的厚度H＝1.5h＝2.25mm；
PVC骨架中水平支架与斜支架之间的夹角α＝20°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝0.2H＝0.45mm；
HDPE中空管壁外表面热覆HDPE材料层的厚度为A，1.5mm﹤A﹤2.25mm且A＝1.2h＝1.8mm。
确定了缠绕管的内径和上述参数后，缠绕管的其他尺寸可以根据实际情况调整。
本实施例的复合增强缠绕管的制备方法，按照先后顺序包括以下步骤：
步骤一：利用挤出机生产PVC增强骨架，经过双螺杆挤出、定型、冷却，缠绕成卷待用；
步骤二：利用挤出机生产HDPE中空板带，经过单螺杆挤出、定型、冷却，缠绕成盘待用；
步骤三：将HDPE中空板带和PVC增强骨架在成型机上缠绕复合成型，并在外表面热敷一层HDPE材料，形成复合增强缠绕管。
本实施例的缠绕管为全塑料复合管，由PVC骨架代替传统钢板来提高管道的环刚度和环柔性，PVC骨架又极耐腐蚀，从而解决了传统塑钢复合管在实际使用中钢板慢慢腐蚀这一致命缺陷，避免了管道环刚度严重下降以及管线因此发生塌陷的问题。整根管道的外表面呈光平形状，即放置有PVC增强骨架的地方呈光平形状，没有放置PVC增强骨架的地方也呈光平形状。当管道埋在地下后，管壁所受的压力集中到管壁的上表面处，HDPE中空管壁和PVC增强骨架二者共同受力，PVC增强骨架加强了管壁承受外部压力的能力，管道的大部分压力由管壁中的PVC增强骨架来承受，这样大大提高了管道的环刚度和环柔性。本实施中，无论采用哪种形状的PVC增强骨架和HDPE中空管壁，两种材料复合后缠绕管的屈服强度达到350MPa以上、抗拉强度达到800MPa以上、延伸率到达40％以上、环刚度达到20KN/m 2以上，管材圆滑、无反向弯曲、无破裂。
实施例二：
按照本实用新型的复合增强缠绕管的另一实施例，其结构、各部件之间的位置关系、有益效果等均与实施例一相同，不同的是：
HDPE中空管壁的厚度h＝2mm；
PVC骨架的厚度H＝4h＝8mm；
PVC骨架中水平支架与斜支架之间的夹角α＝30°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝0.8H＝6.4mm；
HDPE中空管壁外表面热覆HDPE材料层的厚度为A，2mm﹤A﹤8mm且A＝2.5h＝5mm。
实施例三：
按照本实用新型的复合增强缠绕管的另一实施例，其结构、各部件之间的位置关系、有益效果等均与实施例一相同，不同的是：
HDPE中空管壁的厚度h＝1.7mm；
PVC骨架的厚度H＝3.8h＝6.46mm；
PVC骨架中水平支架与斜支架之间的夹角α＝40°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝0.5H＝3.23mm；
HDPE中空管壁外表面热覆HDPE材料层的厚度为A，1.7mm﹤A﹤6.46mm且A＝2.2h＝3.74mm。
实施例四：
按照本实用新型的复合增强缠绕管的另一实施例，其结构、各部件之间的位置关系、有益效果等均与实施例一相同，不同的是：
HDPE中空管壁的厚度h＝1.9mm；
PVC骨架的厚度H＝3h＝5.7mm；
PVC骨架中水平支架与斜支架之间的夹角α＝80°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝0.7H＝3.99mm；
HDPE中空管壁外表面热覆HDPE材料层的厚度为A，1.9mm﹤A﹤5.7mm且A＝2.4h＝4.56mm。
实施例五：
按照本实用新型的复合增强缠绕管的另一实施例，其结构、各部件之间的位置关系、有益效果等均与实施例一相同，不同的是：
HDPE中空管壁的厚度h＝1.6mm；
PVC骨架的厚度H＝3.5h＝5.6mm；
PVC骨架中水平支架与斜支架之间的夹角α＝70°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝0.3H＝1.68mm；
HDPE中空管壁外表面热覆HDPE材料层的厚度为A，1.6mm﹤A﹤5.6mm且A＝1.8h＝2.88mm。
实施例六：
按照本实用新型的复合增强缠绕管的另一实施例，其结构、各部件之间的位置关系、有益效果等均与实施例一相同，不同的是：
HDPE中空管壁的厚度h＝1.8mm；
PVC骨架的厚度H＝2.5h＝4.5mm；
PVC骨架中水平支架与斜支架之间的夹角α＝50°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝0.4H＝1.8mm；
HDPE中空管壁外表面热覆HDPE材料层的厚度为A，1.8mm﹤A﹤4.5mm且A＝2h＝3.6mm。
实施例七：
按照本实用新型的复合增强缠绕管的另一实施例，其结构、各部件之间的位置关系、有益效果等均与实施例一相同，不同的是：
HDPE中空管壁的厚度h＝1.65mm；
PVC骨架的厚度H＝2h＝3.3mm；
PVC骨架中水平支架与斜支架之间的夹角α＝60°；
水平支架与中空管壁中通孔两侧的外壁之间的间隙C＝0.6H＝1.98mm；HDPE中空管壁外表面热覆HDPE材料层的厚度为A，1.65mm﹤A﹤3.3mm且A＝1.5h＝2.475mm。
实施例八：
按照本实用新型的复合增强缠绕管的另一实施例，其结构、各部件之间的位置关系、有益效果等均与实施例一至七相同，不同的是：
所述水平支架内部等间距设置三根平行的加强筋，该加强筋与所述水平支架垂直。所述斜支架内部等间距设置三根平行的加强筋，该加强筋与所述斜支架平行。
本领域技术人员不难理解，本实用新型的复合增强缠绕管包括上述本实用新型说明书的发明内容和具体实施方式部分以及附图所示出的各部分的任意组合，限于篇幅并为使说明书简明而没有将这些组合构成的各方案一一描述。凡在本实用新型的精神和原则之内，所做的任何修改、等同 替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (9)

  1. 一种复合增强缠绕管，包括中空管壁和增强骨架，所述增强骨架设置在所述中空管壁中，其特征在于：所述中空管壁的外壁设置通孔，所述通孔的宽度小于所述中空管壁的宽度；所述增强骨架的顶部与所述外壁平齐，所述增强骨架的底部与所述中空管壁的内壁粘合连接或通过卡槽连接；所述中空管壁的外表面粘合覆着层。
  2. 如权利要求1所述的复合增强缠绕管，其特征在于：所述中空管壁中设置两个环孔，两个环孔中至少有一个环孔的外壁设置通孔，设置通孔的环孔中设置所述增强骨架；多个中空管壁之间通过HDPE热熔料竖向连接。
  3. 如权利要求1所述的复合增强缠绕管，其特征在于：所述中空管壁中设置三个环孔，两侧环孔的外壁均设置通孔，两侧环孔中均设置所述增强骨架；多个中空管壁之间通过HDPE热熔料竖向连接。
  4. 如权利要求1所述的复合增强缠绕管，其特征在于：所述增强骨架包括水平支架和斜支架，所述斜支架设置在所述水平支架的下方。
  5. 如权利要求4所述的复合增强缠绕管，其特征在于：所述水平支架内部等间距设置三根平行的加强筋，该加强筋与所述水平支架垂直。
  6. 如权利要求4所述的复合增强缠绕管，其特征在于：所述斜支架内部等间距设置三根平行的加强筋，该加强筋与所述斜支架平行。
  7. 如权利要求4所述的复合增强缠绕管，其特征在于：所述增强骨架还包括加强支架，所述加强支架垂直设置在所述水平支架的下方。
  8. 如权利要求4-7中任一项所述的复合增强缠绕管，其特征在于：所述斜支架和/或加强支架的底部设置底部支架。
  9. 如权利要求1所述的复合增强缠绕管，其特征在于：所述中空管壁为HDPE材料，所述增强骨架为PVC材料；所述中空管壁的外表面粘合HDPE材料层。
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CN109944984B (zh) * 2019-03-25 2019-12-20 淄博金洋达塑业有限公司 Hdpe中空壁复合增强缠绕管及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2634393B2 (ja) * 1987-07-17 1997-07-23 大日本プラスチックス株式会社 推進工法用プラスチックス螺旋巻き二重管及びその製造法
TWI414416B (zh) * 2011-11-08 2013-11-11
CN205877456U (zh) * 2016-06-14 2017-01-11 潘小雄 Hdpe中空壁塑钢缠绕管
CN206093245U (zh) * 2016-08-31 2017-04-12 广东统塑管业有限公司 增强立筋中空壁缠绕波纹管及带材
CN206093242U (zh) * 2016-08-31 2017-04-12 广东统塑管业有限公司 中空壁塑钢缠绕管和板带

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2634393B2 (ja) * 1987-07-17 1997-07-23 大日本プラスチックス株式会社 推進工法用プラスチックス螺旋巻き二重管及びその製造法
TWI414416B (zh) * 2011-11-08 2013-11-11
CN205877456U (zh) * 2016-06-14 2017-01-11 潘小雄 Hdpe中空壁塑钢缠绕管
CN206093245U (zh) * 2016-08-31 2017-04-12 广东统塑管业有限公司 增强立筋中空壁缠绕波纹管及带材
CN206093242U (zh) * 2016-08-31 2017-04-12 广东统塑管业有限公司 中空壁塑钢缠绕管和板带

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