KR100865470B1 - A triple pipe and its manufacturing process and device - Google Patents

A triple pipe and its manufacturing process and device Download PDF

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KR100865470B1
KR100865470B1 KR1020080015312A KR20080015312A KR100865470B1 KR 100865470 B1 KR100865470 B1 KR 100865470B1 KR 1020080015312 A KR1020080015312 A KR 1020080015312A KR 20080015312 A KR20080015312 A KR 20080015312A KR 100865470 B1 KR100865470 B1 KR 100865470B1
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South Korea
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weight
intermediate layer
layer
triple
skin layer
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KR1020080015312A
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Korean (ko)
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이현상
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주식회사 사이몬
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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
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • 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
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers

Abstract

A triple pipe and an apparatus and a method for manufacturing the same are provided to enhance the physical properties of a triple pipe by filling foam filler material in an intermediate layer and to obtain superior resistance endurable to pressure and external impact. A triple pipe comprises an inner layer(20) made of high density polyethylene material and an intermediate layer(30) provided on the outer surface of the inner layer and having a hollow section(32) in a circumferential direction thereof. A foam filler material(40) is filled in the intermediate layer. An outer layer(50) is made of high density polyethylene material and is sprially wound around the outer surface of the intermediate layer in the longitudinal direction of the intermediate layer. The intermediate layer includes 70.0 weight % of polyethylene, 14.5 weight % of polypropylene, 7.0 weight % of carbon fiber, 1.0 weight % of dispersing agent, 2.5 weight % of stabilizer and 5.0 weight % of antimicrobial agent.

Description

삼중관, 그 제조방법 및 제조장치 {A TRIPLE PIPE AND ITS MANUFACTURING PROCESS AND DEVICE}Triple pipe, manufacturing method and apparatus {A TRIPLE PIPE AND ITS MANUFACTURING PROCESS AND DEVICE}

본 발명은 삼중관, 그 제조방법 및 제조장치에 관한 것으로, 보다 상세하게는 내피층과 중간층 및 외피층으로 이루어진 삼중관, 그 제조방법 및 제조장치에 관한 것이다.The present invention relates to a triple tube, a method for manufacturing the same, and a manufacturing apparatus thereof, and more particularly, to a triple tube, a method for manufacturing the same, and a manufacturing apparatus comprising an inner skin layer, an intermediate layer, and an outer skin layer.

일반적으로, 삼중관(三重管)은 단일관 또는 이중관에 비해 내강도성 및 내구성과 같은 물적 특성이 상대적으로 우수하여 여러 다양한 기술분야에 널리 사용되고 있다.In general, the triple pipe (三重 管) is a relatively excellent physical properties such as strength and durability compared to single pipe or double pipe is widely used in various technical fields.

특히, 하수도관이나 오폐수관 또는 전선매립관 등은 지하에 매설된다는 특성상 어느 정도의 연성과 함께 일반 관에 비해 우수한 내강도성·내구성·단열성·내화학성·내수성을 가지고 있어야 하는 데, 이와 같은 요구에 가장 적합한 재질이 폴리에틸렌(PE)이다.In particular, sewage pipes, wastewater pipes, or wire buried pipes must have superior ductility, durability, insulation, chemical resistance, and water resistance compared to general pipes due to the fact that they are buried underground. The most suitable material is polyethylene (PE).

그러나 폴리에틸렌(PE)은 폴리염화비닐(PVC) 등과 같은 다른 열가소성 수지 에 비해 그 가격이 상대적으로 비싸 지중 매설용 관의 재질로 사용하기에는 적합하지 않다.However, polyethylene (PE) is relatively inexpensive compared to other thermoplastic resins such as polyvinyl chloride (PVC) and is not suitable for use as a material for underground buried pipes.

이와 같은 폴리에틸렌(PE)의 경제적인 단점을 극복하기 위하여 중간층의 내부면 및 외부면에 일정의 두께로 내피층 및 외피층이 형성되어 있는 삼중관이 개발되었다.In order to overcome such economic disadvantages of polyethylene (PE), a triple tube has been developed in which the inner and outer layers are formed to a certain thickness on the inner and outer surfaces of the intermediate layer.

특허공개공보 제2001-0044732호에는 내부관과 중간관 및 외부관 중 어느 하나를 스테인레스강으로 형성시킴과 아울러 나머지는 강관 또는 동관으로 형성시킨 삼중관이 개시되어 있으나, 그 원자재 단가가 폴리에틸렌(PE)보다 더 비싸다는 문제점이 있다. Patent Publication No. 2001-0044732 discloses a triple tube in which any one of an inner tube, an intermediate tube, and an outer tube is formed of stainless steel and the remainder is formed of a steel tube or a copper tube, but the unit cost thereof is polyethylene (PE). It is more expensive than).

그리고 실용신안등록 제20-0197252호, 제20-0211162호 및 제20-0167008호의 경우에는 중간층에 사용되는 조성물을 그 구체적인 조성 없이 단순히 재활용 합성수지를 사용한다고만 기재되어 있어, 실제의 구현가능성 및 효과를 제시하지 못하고 있다.In the case of Utility Model Registration Nos. 20-0197252, 20-0211162 and 20-0167008, the composition used in the intermediate layer is described as simply using recycled synthetic resin without the specific composition, so that the practical feasibility and effect Has not been presented.

최근에 들어, 내피층 및 외피층이 폴리에틸렌 재질로 이루어지고, 중간층은 폐비닐 등을 소재로 하는 재생수지로 이루어진 삼중관이 주로 사용되고 있는 실정이다.In recent years, the inner layer and the outer layer are made of polyethylene material, the middle layer is a situation that a triple tube made of recycled resin made of waste vinyl or the like is mainly used.

그러나 상기와 같은 삼중관은 서로 다른 재질의 삼중 구조로 이루어짐으로써 외부환경에 의해 내피층 및 외피층이 쉽게 분리되는 현상이 발생될 뿐 아니라 외부의 충격이나 내압 등에 의해 쉽게 파손되는 문제점이 제기되고 있으며, 그 구조적·재질적 특성으로 인해 기능성 및 내구성에 한계가 있어 자주 교체해 주어야 하는 단점이 있다.However, the triple tube as described above has a problem that the inner layer and the outer layer are easily separated by the external environment due to the triple structure made of different materials, and are easily broken by external impact or internal pressure. Due to its structural and material properties, there is a limitation in functionality and durability, and thus it is necessary to replace frequently.

또한, 현재 공지되어 있는 대부분의 삼중관은 실제 지중에 매설했을 경우 우수의 유입, 지하수 유출 등에 의해 그 설치상태를 안정적으로 유지하기 어렵다는 문제점이 있다.In addition, most triple pipes currently known have a problem that it is difficult to stably maintain their installation state due to rainwater inflow, groundwater outflow, etc. when they are actually buried in the ground.

본 발명은 내피층과 중간층 및 외피층의 구조적·재질적 특성을 개선하여 그 기능적 측면을 한층 강화시킬 수 있을 뿐 아니라 사용수명을 연장시켜 반영구적으로 사용할 수 있는 삼중관, 그 제조방법 및 제조장치를 제공하고자 하는 데 그 목적이 있다.The present invention improves the structural and material properties of the inner layer, the intermediate layer and the outer layer to not only enhance its functional aspects, but also provide a triple tube, a manufacturing method and a manufacturing apparatus which can be used semi-permanently by extending the service life. The purpose is to do that.

본 발명에 따른 삼중관은, 고밀도폴리에틸렌 재질의 내피층; 상기 내피층의 외부면에 마련되며, 원주방향으로 중공부가 형성되어 있는 중간층; 상기 중공부에 충진되는 발포충진물; 상기 중간층의 길이방향을 따라 그 외부면에 나선형태로 권취되는 고밀도폴리에틸렌 재질의 외피층을 포함하여 구성되는 데 그 기술적 특징이 있다.Triple tube according to the present invention, the inner layer of high density polyethylene material; An intermediate layer provided on an outer surface of the inner skin layer and having a hollow portion formed in a circumferential direction; Foam filler filled in the hollow portion; It is characterized by including the outer layer of the high density polyethylene material wound spirally on the outer surface along the longitudinal direction of the intermediate layer.

상기 중간층은 폴리에틸렌 70.0 중량%, 폴리프로필렌 14.5 중량%, 탄소섬유 7.0 중량%, 분산제 1.0 중량%, 안정제 2.5 중량%, 항균제 5.0 중량%의 혼합성분으로 이루어지는 것이 바람직하다.The intermediate layer is preferably 70.0% by weight of polyethylene, 14.5% by weight of polypropylene, 7.0% by weight of carbon fiber, 1.0% by weight of dispersant, 2.5% by weight of stabilizer, 5.0% by weight of antimicrobial agent.

상기 발포충진물은 폐비닐 65 중량%, 석분 30 중량%, 철분 5 중량%의 혼합성분으로 이루어지는 것이 바람직하다.The foam filler is preferably composed of a mixed component of 65% by weight of waste vinyl, 30% by weight of stone, 5% by weight of iron.

상기 분산제로 스테아린산이 사용되고, 상기 항균제로 은이 사용되는 것이 바람직하다.Stearic acid is used as the dispersant, and silver is preferably used as the antimicrobial agent.

상기 외피층의 외부면에 마련되는 코팅층을 더 포함할 수 있다.It may further include a coating layer provided on the outer surface of the shell layer.

본 발명에 따른 삼중관의 제조방법은, 고밀도폴리에틸렌 재질의 합성수지를 이용하여 관 형상의 내피층을 성형하는 단계; 폴리에틸렌 70 중량%, 폴리프로필렌 14.5 중량%, 탄소섬유 7.0 중량%, 분산제 1.0 중량%, 안정제 2.5 중량%, 항균제 5.0 중량%의 혼합성분으로 이루어진 합성수지를 이용하여 중공부가 형성된 중간층을 성형하여 상기 내피층의 외부면에 부착시키는 단계; 상기 중공부에 발포충진물을 충진하는 단계; 고밀도폴리에틸렌 재질의 합성수지를 이용하여 띠 형상의 외피층을 성형하여 상기 중간층의 길이방향을 따라 그 외부면에 나선형태로 권취 부착시키는 단계를 포함하여 구성되는 데 그 기술적 특징이 있다.The method of manufacturing a triple tube according to the present invention comprises the steps of: forming a tubular inner layer using a synthetic resin made of a high density polyethylene material; The inner skin layer was formed by forming an intermediate layer in which hollow parts were formed using a synthetic resin composed of 70 wt% polyethylene, 14.5 wt% polypropylene, 7.0 wt% carbon fiber, 1.0 wt% dispersant, 2.5 wt% stabilizer, and 5.0 wt% antibacterial agent. Attaching to an outer surface of the; Filling the hollow filler with the foam filler; It comprises a step of forming a band-like outer skin layer using a synthetic resin of high density polyethylene material, the step of spirally attaching to the outer surface along the longitudinal direction of the intermediate layer.

상기 발포충진물은 폐비닐 65 중량%, 석분 30 중량%, 철분 5 중량%를 혼합한 상태에서 가열시킨 후, 상기 중공부에 충진하여 냉각시키는 것이 바람직하다.The foamed filler is preferably heated in a state in which 65% by weight of waste vinyl, 30% by weight of stone powder and 5% by weight of iron are mixed, followed by cooling by filling the hollow part.

본 발명에 따른 삼중관의 제조장치는, 원통 구조의 와인더; 상기 와인더를 회전시키는 구동기; 내피층을 성형하여 상기 와인더의 외부면에 부착시키는 제1성형기; 중공부가 형성된 중간층을 성형하여 상기 내피층의 외부면에 부착시키는 제2성형기; 상기 중공부에 발포충진물을 충진시키는 충진기; 상기 중공부에 충진된 상기 발포충진물을 냉각시키는 냉각기; 외피층을 띠 형상으로 압출하여 상기 중간층의 길이방향을 따라 그 외부면에 권취시키는 제3성형기를 포함하여 구성되는 데 그 기술적 특징이 있다.The apparatus for manufacturing a triple tube according to the present invention includes a winder having a cylindrical structure; A driver for rotating the winder; A first molding machine for forming an inner skin layer and attaching it to an outer surface of the winder; A second molding machine for molding the intermediate layer having the hollow portion formed thereon and attaching the intermediate layer to the outer surface of the inner skin layer; A filler filling the hollow part with a foam filler; A cooler for cooling the foam filler filled in the hollow part; It is characterized by including a third molding machine for extruding the outer skin layer in the shape of a band and wound around its outer surface along the longitudinal direction of the intermediate layer.

상기 내피층, 상기 중간층 및 상기 외피층을 압착시키기 위한 압착롤러를 더 포함할 수 있다.The inner skin layer, the intermediate layer and the outer skin layer may further comprise a compression roller for pressing.

본 발명에 따르면, 내피층과 중간층 및 외피층의 구조적·재질적 특성으로 인해, 삼중관의 기능성 및 사용성을 향상시킬 수 있을 뿐 아니라 내구성을 극대화시킬 수 있다.According to the present invention, due to the structural and material properties of the inner layer, the intermediate layer and the outer layer, the functionality and usability of the triple tube can be improved as well as the durability can be maximized.

또한, 중간층에 발포충진물이 충진됨으로써 그 물적 특성을 한층 강화시킬 수 있다.In addition, it is possible to further enhance the physical properties by filling the foam filling in the intermediate layer.

그리고 삼중관은 내강도성·내열성·내화학성·내수성·항균성 등과 같은 물적 특성이 우수함은 물론이고 내압 및 외부충격 등에 견디는 성질이 매우 우수하다는 장점이 있다.In addition, the triple tube has the advantages of excellent physical properties such as strength, heat resistance, chemical resistance, water resistance, and antimicrobial resistance, as well as excellent resistance to pressure and external shock.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1 및 도 2에 도시된 바와 같이, 본 발명에 따른 삼중관(10)은 내피층(20); 내피층(20)의 외부면에 마련되며, 중공부(32)가 형성되어 있는 중간층(30); 중간층(30)의 중공부(32)에 충진되는 발포충진물(40); 중간층(30)의 외부면에 마련되는 외피층(50); 외피층(50)의 외부면에 마련되는 코팅층(60)을 포함하여 구성된다.As shown in Figure 1 and 2, the triple tube 10 according to the present invention is the inner cortex layer 20; An intermediate layer 30 provided on an outer surface of the inner skin layer 20 and having a hollow portion 32 formed therein; Foam filler 40 is filled in the hollow portion 32 of the intermediate layer 30; Outer skin layer 50 provided on the outer surface of the intermediate layer 30; It is configured to include a coating layer 60 provided on the outer surface of the outer skin layer (50).

내피층(20)은 그 기능성을 향상시키기 위하여 고밀도폴리에틸렌(LLDPE) 재질 로 이루어진다.The inner skin layer 20 is made of high density polyethylene (LLDPE) material to improve its functionality.

고밀도폴리에틸렌(HDPE)은 밀도가 높아 내구성은 물론이고 내약품성 및 내한성 등과 같은 물적 특성이 우수하며, 필요에 따라 카본이나 분산제 또는 안료 등을 혼합하여 사용할 수 있다. High density polyethylene (HDPE) is high in density and excellent in physical properties such as durability and chemical resistance and cold resistance, and can be used by mixing carbon, dispersant or pigment as necessary.

한편, 고밀도폴리에틸렌(LLDPE)은 공지된 재질이므로 그 자세한 설명은 생략하기로 한다.On the other hand, high density polyethylene (LLDPE) is a known material, so its detailed description will be omitted.

중간층(30)은 폴리에틸렌 70.0 중량%, 폴리프로필렌 14.5 중량%, 탄소섬유 7.0 중량%, 분산제 1.0 중량%, 안정제 2.5 중량%, 항균제 5.0 중량%의 혼합성분으로 이루어진다.The intermediate layer 30 is composed of 70.0 wt% polyethylene, 14.5 wt% polypropylene, 7.0 wt% carbon fiber, 1.0 wt% dispersant, 2.5 wt% stabilizer, and 5.0 wt% antibacterial agent.

중간층(30)의 주성분은 폴리에틸렌 및 폴리프로필렌으로 이루어진다. 그리고 탄소섬유는 중간층(30)의 기능적 특성을 향상시키기 위한 것으로, 내강도성·내열성·내충격성이 우수할 뿐 아니라 유해물질에 대한 저항성이 강하다는 장점이 있다.The main component of the intermediate layer 30 consists of polyethylene and polypropylene. In addition, the carbon fiber is to improve the functional characteristics of the intermediate layer 30, and has the advantage of excellent strength, heat resistance, impact resistance, and strong resistance to harmful substances.

분산제로는 스테아린산이 사용되고, 항균제로는 은이 사용되는 것이 바람직하다. Stearic acid is used as the dispersant, and silver is preferably used as the antimicrobial agent.

분산제, 안정제 및 항균제로는 필요에 따라 공지된 다양한 종류의 것을 선택적으로 적용할 수 있다.As the dispersant, stabilizer and antimicrobial agent, various kinds of known ones may be selectively applied as necessary.

한편, 중간층(30)의 성분비는 내강도성 및 내구성 등과 같은 여러 물적 특성을 골고루 고려하여 반복적인 실험을 거쳐 최적의 수치를 찾아낸 것으로, 상기의 수치한정 범위를 벗어날 경우에는 물적 특성의 일부가 현저히 저하되는 문제점이 있다.On the other hand, the component ratio of the intermediate layer 30 was found to be the optimal value through repeated experiments in consideration of various physical properties, such as strength resistance and durability, and if it is out of the above numerical limits, some of the physical properties are significantly reduced. There is a problem.

그리고 중공부(32)는 링형 단면구조를 가지며, 중간층(30)의 길이방향으로 형성되어 있다.The hollow part 32 has a ring-shaped cross-sectional structure, and is formed in the longitudinal direction of the intermediate layer 30.

중공부(32)의 형태는 필요에 따라 적절하게 변경 가능하다. 예컨대, 중공부(32)는 중간층(30)의 원주방향을 따라 일정 간격을 두고 장공 형태로 복수 개 형성할 수도 있다.The shape of the hollow part 32 can be changed suitably as needed. For example, the hollow part 32 may be formed in plural in a long hole shape at regular intervals along the circumferential direction of the intermediate layer 30.

발포충진물(40)은 중간층(30)의 수축 및 열변형을 최소화시키며, 휨 저항을 증대시키기 위한 것이다.Foam filler 40 is to minimize the shrinkage and thermal deformation of the intermediate layer 30, and to increase the bending resistance.

발포충진물(40)은 삼중관(10)의 전체 하중 및 압축 강도를 감안하여 폐비닐 65 중량%, 석분 30 중량%, 철분 5 중량%의 혼합성분으로 이루어지며, 발포충진물(40)의 각 성분은 별도의 재생 공정을 통해 하나의 펠렛 형태를 가지는 것이 바람직하다.The foam filler 40 is composed of 65% by weight waste vinyl, 30% by weight stone, 5% by weight iron, in consideration of the total load and the compressive strength of the triple tube 10, each component of the foam filler 40 It is preferable to have one pellet form through a separate regeneration process.

한편, 상기의 발포충진물(40)의 성분비를 벗어날 경우에는 그 물적 특성이 현저히 저하된다.On the other hand, when out of the component ratio of the foam filler 40, the physical properties are significantly reduced.

외피층(50)은 내피층(20)과 동일한 고밀도폴리에틸렌(LLDPE) 재질로 이루어지며, 중간층(30)의 길이방향을 따라 그 외부면에 나선형태로 밀착되게 권취 부착된다.The outer skin layer 50 is made of the same high-density polyethylene (LLDPE) material as the inner skin layer 20, and is wound around the outer surface along the longitudinal direction of the intermediate layer 30 in a spiral shape.

그리고 내피층(20) 또한 필요에 따라 외피층(50)과 동일하게 나선형태를 가질 수 있다.And the inner skin layer 20 may also have a spiral like the outer skin layer 50 as needed.

코팅층(60)은 외부환경에 노출되는 외피층(50)이 손상되는 것을 효율적으로 방지하기 위한 것으로, 내부식성·내수성 등이 우수한 공지된 다양한 코팅재를 사용할 수 있다.The coating layer 60 is for effectively preventing damage to the outer skin layer 50 exposed to the external environment, and various coating materials known in the art having excellent corrosion resistance and water resistance may be used.

도 3은 본 발명에 따른 삼중관의 제조방법을 도시한 블럭도로서, 도 1 및 도 2를 참조하여 설명하기로 한다.3 is a block diagram illustrating a method of manufacturing a triple tube according to the present invention, which will be described with reference to FIGS. 1 and 2.

① 제1단계(S1) : 관 형상의 내피층(20)을 형성하는 단계.① first step (S1): forming a tubular inner cortex (20).

이 때, 내피층(20)의 재질로는 고밀도폴리에틸렌(LLDPE)이 사용된다.At this time, as the material of the inner skin layer 20, high density polyethylene (LLDPE) is used.

② 제2단계(S2) : 중공부(32)가 형성된 관 형상의 중간층(30)을 성형한 후, 내피층(20)의 외부면에 견고하게 부착시키는 단계.② second step (S2): after the hollow portion 32 is formed in the tubular intermediate layer 30 is formed, the step of firmly attaching to the outer surface of the endothelial layer (20).

중간층(30)은 폴리에틸렌 70 중량%, 폴리프로필렌 14.5 중량%, 탄소섬유 7.0 중량%, 분산제 1.0 중량%, 안정제 2.5 중량%, 항균제 5.0 중량%의 혼합성분으로 이루어진다.The intermediate layer 30 is composed of 70% by weight of polyethylene, 14.5% by weight of polypropylene, 7.0% by weight of carbon fiber, 1.0% by weight of dispersant, 2.5% by weight of stabilizer, and 5.0% by weight of antibacterial agent.

이 때, 중공부(32)의 형성방법은 공지된 다양한 방법을 선택적으로 활용할 수 있다.At this time, the method of forming the hollow portion 32 may selectively use a variety of known methods.

③ 제3단계(S3) : 중간층(30)에 형성되어 있는 중공부(32)에 발포충진물(40)을 충진하는 단계.③ third step (S3): filling the filling filler 40 in the hollow portion 32 formed in the intermediate layer (30).

이 때, 발포충진물(40)은 폐비닐 65 중량%, 석분 30 중량%, 철분 5 중량%를 혼합한 상태에서 일정 시간 가열시킨 후, 중간층(30)의 중공부(32)에 충진하여 냉각시킨다.At this time, the foamed filler 40 is heated for a predetermined time while mixing 65% by weight of waste vinyl, 30% by weight of stone powder, and 5% by weight of iron, and then filled and cooled in the hollow portion 32 of the intermediate layer 30. .

④ 제4단계(S4); 띠 형상의 외피층(50)을 성형하여 중간층(30)의 길이방향을 따라 그 외부면에 나선형태로 권취 부착시키는 단계.④ fourth step (S4); Forming a strip-shaped outer skin layer 50 and winding the spiral outer surface to the outer surface along the longitudinal direction of the intermediate layer 30.

이 때, 외피층(50)의 재질로는 고밀도폴리에틸렌(LLDPE)이 사용된다. At this time, a high density polyethylene (LLDPE) is used as the material of the outer skin layer 50.

⑤ 제5단계(S5) : 외피층(50)의 외부면에 코팅층(60)을 도포하는 단계.⑤ fifth step (S5): the step of applying a coating layer 60 to the outer surface of the outer skin layer (50).

이 때, 코팅층(60)의 재질 및 두께 등은 필요에 따라 적절하게 조절할 수 있다.At this time, the material and thickness of the coating layer 60 may be appropriately adjusted as necessary.

이상에서 설명한 총 5단계의 제조공정을 거쳐 본 발명에 따른 삼중관이 최종적으로 완성되며, 코팅층(60)을 형성하는 제5단계는 필요에 따라 선택할 수 있는 공정이다.The triple tube according to the present invention is finally completed through the manufacturing process of the above-described five steps, and the fifth step of forming the coating layer 60 is a process that can be selected as necessary.

한편, 중간층(30)을 성형한 후 발포충진물(40)을 중공부(32)에 충진한 상태에서 내피층(20)에 부착시킬 수도 있다.Meanwhile, after the intermediate layer 30 is molded, the foam filler 40 may be attached to the endothelial layer 20 in a state in which the hollow filler 32 is filled.

도 4는 본 발명에 따른 삼중관 제조장치의 구성을 개략적으로 도시한 구성도로서, 도 1 및 도 2를 참조하여 설명하기로 한다.4 is a configuration diagram schematically showing the configuration of a triple tube manufacturing apparatus according to the present invention, will be described with reference to FIGS.

도면에 도시된 바와 같이, 삼중관 제조장치는 원통 구조의 와인더(1); 와인더(1)를 회전시키는 구동기(2); 내피층(20)을 성형하여 와인더(1)의 외부면에 부착시키는 제1성형기(3); 중공부(32)가 형성된 중간층(30)을 성형하여 내피층(20)의 외부면에 부착시키는 제2성형기(4); 중간층(30)의 중공부(32)에 발포충진물(40)을 충진시키는 충진기(5); 중간층(30)의 중공부(32)에 충진된 발포충진물(40)을 냉각시키는 냉각기(6); 외피층(50)을 띠 형상으로 압출하여 중간층(30)의 길이방향을 따라 그 외부면에 권취시키는 제3성형기(7); 외피층(50)에 코팅층(60)을 도포하는 코팅기(8)를 포함하여 구성된다.As shown in the figure, the triple pipe manufacturing apparatus includes a winder (1) of the cylindrical structure; A driver 2 for rotating the winder 1; A first molding machine 3 for molding the inner skin layer 20 and attaching it to the outer surface of the winder 1; A second molding machine 4 for forming the intermediate layer 30 having the hollow part 32 formed thereon and attaching it to the outer surface of the endothelial layer 20; Filler 5 for filling the foam filling 40 in the hollow portion 32 of the intermediate layer 30; A cooler 6 for cooling the foam filling 40 filled in the hollow portion 32 of the intermediate layer 30; A third molding machine (7) for extruding the outer skin layer (50) in a band shape and winding it on its outer surface along the longitudinal direction of the intermediate layer (30); It is configured to include a coater 8 for applying a coating layer 60 to the outer skin layer (50).

한편, 삼중관 제조장치는 내피층(20), 중간층(30) 및 외피층(50)을 압착시키는 압착롤러(9)를 더 포함할 수 있다.Meanwhile, the triple pipe manufacturing apparatus may further include a compression roller 9 for compressing the inner skin layer 20, the intermediate layer 30, and the outer skin layer 50.

도 1은 본 발명에 따른 삼중관을 도시한 절개사시도,1 is a perspective view showing a triple tube according to the present invention,

도 2는 본 발명에 따른 삼중관의 구조를 도시한 단면도,2 is a cross-sectional view showing the structure of a triple tube according to the present invention;

도 3은 본 발명에 따른 삼중관의 제조방법을 도시한 블럭도,3 is a block diagram showing a method for manufacturing a triple tube according to the present invention;

도 4는 본 발명에 따른 삼중관 제조장치의 구성을 개략적으로 도시한 구성도이다.Figure 4 is a schematic diagram showing the configuration of a triple tube manufacturing apparatus according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 >             <Description of Symbols for Main Parts of Drawings>

1 : 구동기 2 : 와인더             1: Actuator 2: Winder

3 : 제1성형기 4 : 제2성형기             3: first molding machine 4: second molding machine

5 : 충진기 6 : 냉각기             5: filler 6: cooler

7 : 제3성형기 8 : 코팅기             7: 3rd molding machine 8: coating machine

9 : 압착롤러 10 : 삼중관             9: press roller 10: triple tube

20 : 내피층 30 : 중간층            20: inner layer 30: middle layer

32 : 중공부 40 : 발포충진물            32: hollow 40: foam filling

50 : 외피층 60 : 코팅층            50: outer layer 60: coating layer

Claims (8)

고밀도폴리에틸렌 재질의 내피층;Inner layer of HDPE; 상기 내피층의 외부면에 마련되며, 원주방향으로 중공부가 형성되어 있는 중간층; An intermediate layer provided on an outer surface of the inner skin layer and having a hollow portion formed in a circumferential direction; 상기 중공부에 충진되는 발포충진물;Foam filler filled in the hollow portion; 상기 중간층의 길이방향을 따라 그 외부면에 나선형태로 권취되는 고밀도폴리에틸렌 재질의 외피층을 포함하며, It includes an outer skin layer of a high density polyethylene material spirally wound on the outer surface along the longitudinal direction of the intermediate layer, 상기 중간층은 폴리에틸렌 70.0 중량%, 폴리프로필렌 14.5 중량%, 탄소섬유 7.0 중량%, 분산제 1.0 중량%, 안정제 2.5 중량%, 항균제 5.0 중량%의 혼합성분으로 이루어지며,The intermediate layer is composed of a mixture of polyethylene 70.0% by weight, polypropylene 14.5% by weight, carbon fiber 7.0% by weight, dispersant 1.0% by weight, stabilizer 2.5% by weight, antibacterial 5.0% by weight, 상기 분산제로 스테아린산이 사용되고, 상기 항균제로 은이 사용되는 것을 특징으로 하는 삼중관.Stearic acid is used as the dispersant, the triple tube, characterized in that silver is used as the antimicrobial agent. 제1항에 있어서,The method of claim 1, 상기 발포충진물은 폐비닐 65 중량%, 석분 30 중량%, 철분 5 중량%의 혼합성분으로 이루어지는 것을 특징으로 하는 삼중관.The foam filling is triple pipe, characterized in that consisting of a mixed component of 65% by weight of waste vinyl, 30% by weight of stone, 5% by weight of iron. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
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CN102840392A (en) * 2012-09-18 2012-12-26 浙江新大塑料管件有限公司 Antibacterial double-layer polyethylene pipe
CN102848607A (en) * 2012-09-18 2013-01-02 浙江新大塑料管件有限公司 Antibacterial double-layer polyethylene tube
CN102848607B (en) * 2012-09-18 2015-04-29 浙江新大塑料管件有限公司 Antibacterial double-layer polyethylene tube
CN102840392B (en) * 2012-09-18 2015-04-29 浙江新大塑料管件有限公司 Antibacterial double-layer polyethylene pipe
KR101553505B1 (en) * 2015-02-13 2015-09-15 권태응 Pipe for water supply and drainage
KR102586251B1 (en) * 2022-05-18 2023-10-11 정영섭 Hot water mat using functional hot water pipe and its manufacturing method

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