CN201306535Y - 衬塑复合管 - Google Patents

衬塑复合管 Download PDF

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Publication number
CN201306535Y
CN201306535Y CNU2008201702923U CN200820170292U CN201306535Y CN 201306535 Y CN201306535 Y CN 201306535Y CN U2008201702923 U CNU2008201702923 U CN U2008201702923U CN 200820170292 U CN200820170292 U CN 200820170292U CN 201306535 Y CN201306535 Y CN 201306535Y
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Prior art keywords
pipe
plastic inner
inner pipe
metal outer
plastic
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CNU2008201702923U
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钱功海
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ZHEJIANG TONGZHENG PIPE TECHNOLOGY CO., LTD.
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钱功海
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Abstract

本实用新型公开了一种衬塑复合管，包括塑料内管、金属外管，在塑料内管与金属外管之间复合一高分子弹性隔热层。本实用新型利用塑料内管与金属外管之间的一高分子弹性隔热层的可伸缩性，解决塑料内管和金属外管因线性膨胀系数的不同而导致的问题，使塑料内管和金属外管配合更加稳定，同时，本实用新型还具有保温隔热性能好，可靠性强的特点。

Description

衬塑复合管
技术领域
本实用新型涉及一种复合管，尤其涉及一种冷热水给水、太阳能热水器、化工管道用管等需要保温、防寒、耐高压的衬塑复合管。
背景技术
目前，市场上的衬塑复合管主要由塑料内管和金属外管组成，其中的金属外管紧密地包覆在塑料内管的外壁上，这种复合管虽然解决了因塑料内管的强度、刚性及硬度的不足，而导致其破裂的问题，但是还存在着一些不足：
一、所述塑料内管和金属外管因线性膨胀系数的不同而导致脱层，或因塑料内管受金属外管的金属应力的限制而迫使塑料内管的两端伸长，导致塑料内管的长度超过金属外管的长度，从而造成整个管道系统的连接处形成薄弱点，使管道系统存在着渗漏，严重时会出现爆管的现象。
二、因塑料内管和金属外管直接接触，从而导致流体在管道内的热量容易散失，保温效果差。
实用新型内容
本实用新型的目的在于提供了一种保温隔热性能好，可靠性强，能解决塑料内管和金属外管因线性膨胀系数的不同而导致的问题，使塑料内管和金属外管配合更加稳定的衬塑复合管。
为了达到上述目的，本实用新型的技术方案是：一种衬塑复合管，包括塑料内管、金属外管，在塑料内管与金属外管之间复合一高分子弹性隔热层。
所述高分子弹性隔热层的厚度为塑料内管直径的0.00075～0.001倍。
所述高分子弹性隔热层由高分子弹性隔热材料制成。
本实用新型采用上述结构后，高分子弹性隔热层紧贴于塑料内管与金属外管之间，利用其可伸缩性，在塑料内管与金属外管之间形成缓冲带，从而避免了因塑料内管和金属外管因线性膨胀系数的不同而导致的脱层，或因塑料内管受金属外管的金属应力的限制而迫使塑料内管的两端伸长，从而造成整个管道系统的连接处形成薄弱点，使管道系统存在着渗漏，严重时会出现爆管的现象。同时，高分子弹性隔热层还起到了保温隔热的作用。
附图说明
图1是本实用新型的剖视图；
图2是图1的左视图。
具体实施方式
如图1、图2所示，是本实用新型的较佳实施例，该衬塑复合管包括塑料内管1、金属外管2，在塑料内管1与金属外管2之间复合一高分子弹性隔热层3，该高分子弹性隔热层3的厚度为塑料内管1直径的0.00075～0.001倍，并由高分子弹性隔热材料制成。本实用新型的高分子弹性隔热层3的厚度主要是根据塑料内管1和金属外管2的线性膨胀系数的不同而定，其厚度不受此实施例的限制。
本实用新型在制作时，将塑料内管1与高分子弹性材料通过复合共挤的方式使高分子弹性隔热材料均匀的分布在塑料内管1的外壁上，形成高分子弹性隔热层3，再采用减径冷拔的方式与金属外管2复合，在拉拔过程中将高分子弹性隔热层3压缩在25％左右。
本实用新型根据塑料内管1和金属外管2的线性膨胀系数的不同，当塑料内管1遇冷收缩的时候，利用高分子弹性隔热层3的可伸缩性，高分子弹性隔热层3反弹膨胀，填补因塑料内管1因收缩而形成的空间，防止塑料内管1与金属外管2的脱层；当塑料内管1遇热膨胀，受金属外管2的金属应力的限制而迫使塑料内管1的两端伸长的时候，利用高分子弹性隔热层3的可伸缩性，高分子弹性隔热层3被继续压缩，防止塑料内管1伸出金属外管2。本实用新型解决了塑料内管1和金属外管2因线性膨胀系数的不同而导致的问题，使塑料内管1和金属外管2配合更加稳定。

Claims (3)

1、一种衬塑复合管，包括塑料内管(1)、金属外管(2)，其特征在于：在塑料内管(1)与金属外管(2)之间复合一高分子弹性隔热层(3)。
2、如权利要求1所述的衬塑复合管，其特征在于：所述高分子弹性隔热层(3)的厚度为塑料内管(1)直径的0.00075～0.001倍。
3、如权利要求1或2所述的衬塑复合管，其特征在于：所述高分子弹性隔热层(3)由高分子弹性隔热材料制成。
CNU2008201702923U 2008-12-18 2008-12-18 衬塑复合管 Expired - Lifetime CN201306535Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201702923U CN201306535Y (zh) 2008-12-18 2008-12-18 衬塑复合管

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CNU2008201702923U CN201306535Y (zh) 2008-12-18 2008-12-18 衬塑复合管

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2538549A (en) * 2015-05-21 2016-11-23 Pioneer Lining Tech Ltd Joining lined pipe sections

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2538549A (en) * 2015-05-21 2016-11-23 Pioneer Lining Tech Ltd Joining lined pipe sections
GB2538549B (en) * 2015-05-21 2018-02-28 Pioneer Lining Tech Limited Joining lined pipe sections
US11047513B2 (en) 2015-05-21 2021-06-29 Pioneer Lining Technology Limited Joining lined pipe sections

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EE01 Entry into force of recordation of patent licensing contract

Assignee: Shaoxing Tongzheng Plastic Pipe Co., Ltd.

Assignor: Qian Gonghai

Contract fulfillment period: 2009.7.13 to 2014.7.12

Contract record no.: 2009330001697

Denomination of utility model: Stainless steel lining plastic composited pipe making process

Granted publication date: 20090909

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Address after: 312000, Zhejiang Province, Shaoxing City, Yue Tong, Dragon Tiger Hill pass, Shaoxing Tong Cheng Plastic Pipe Industry Co., Ltd.

Patentee after: Shaoxing Tongzheng Plastic Pipe Co., Ltd.

Address before: 312000, Zhejiang Province, Shaoxing City, Yue Tong, Dragon Tiger Hill pass, Shaoxing Tong Cheng Plastic Pipe Industry Co., Ltd.

Patentee before: Qian Gonghai

C56 Change in the name or address of the patentee

Owner name: ZHEJIANG TONGZHENG PIPE TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: SHAOXING TONGZHENG PLASTIC PIPE CO., LTD.

CP03 Change of name, title or address

Address after: 312050, No. 1, Xichang Road, Chang Feng Industrial Park, Ping Town, Keqiao District, Zhejiang, Shaoxing

Patentee after: ZHEJIANG TONGZHENG PIPE TECHNOLOGY CO., LTD.

Address before: 312000, Zhejiang Province, Shaoxing City, Yue Tong, Dragon Tiger Hill pass, Shaoxing Tong Cheng Plastic Pipe Industry Co., Ltd.

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Granted publication date: 20090909