CN112140645A - 一种覆塑铜管 - Google Patents

一种覆塑铜管 Download PDF

Info

Publication number
CN112140645A
CN112140645A CN201910563626.6A CN201910563626A CN112140645A CN 112140645 A CN112140645 A CN 112140645A CN 201910563626 A CN201910563626 A CN 201910563626A CN 112140645 A CN112140645 A CN 112140645A
Authority
CN
China
Prior art keywords
plastic
coated
copper pipe
heat
density polyethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910563626.6A
Other languages
English (en)
Inventor
李福鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Hongtai Copper Industry Co ltd
Original Assignee
Qingdao Hongtai Copper Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Hongtai Copper Industry Co ltd filed Critical Qingdao Hongtai Copper Industry Co ltd
Priority to CN201910563626.6A priority Critical patent/CN112140645A/zh
Publication of CN112140645A publication Critical patent/CN112140645A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/302—Conductive
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/584—Scratch resistance
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/746—Slipping, anti-blocking, low friction
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/085—Copper
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

本发明涉及一种覆塑铜管，包括纯紫铜管和导热性覆塑层，导热性覆塑层通过覆塑机加工包裹于纯紫铜管的外表面。本发明的覆塑铜管其热传导性能是目前该领域内最高的，导热散热效果好。所述的导热性覆塑层材料具有优异的机械强度、耐热、耐酸碱、耐腐蚀和阻氧性能，保证了纯紫铜管在运输、安装时不会碰划伤，预埋在水泥层中后在50年内不会被腐蚀，基本与建筑物同寿。本发明的应用，彻底解决了空气能无水地暖产业发展瓶颈，无水地暖可直接取代水暖，不再需要与水进行热交换，取消了分集水器、水泵、水箱、电磁阀等复杂结构，大大降低了造价成本、节省安装空间及提高冬季系统稳定性。该产品可埋在水泥层中50年不腐蚀损坏，提高无水地暖寿命，降低后期售后维修成本。

Description

一种覆塑铜管
技术领域
本发明涉及一种铜管，具体涉及一种覆塑铜管。
背景技术
当前地暖行业里空气能无水地暖是一种新兴冬季高效节能取暖产品，因为空气能是一种环保能源，是目前地暖行业的发展趋势之一。空气能无水地暖具备很多优点，尤为突出的是：1、运行成本很低，每月2.5-5元/平米,相当于100平方米一个月采暖费在250-500元。2、初期投资少，无水地暖同水暖系统相比节省了水泵、水箱、电磁阀、分集水器等材料。3、节省安装空间。4、安全、高效、舒适，空气能无水地暖系统工作时无燃烧、无污染、无有害气体产生，选用铜管作为散热器散热效果好，可实现分区精准控制等等。
但现有市场上的无水地暖配套使用的普通铜管易受水泥层腐蚀、易划伤，易氧化锈蚀，连接处气密性差，预埋后自然使用寿命仅为二年左右。因为存在以上问题，普通铜管极易造成冷媒泄露，进而产生诸多不良后果，比如：制热效果差，无法满足用户需求；增加了热源主机能耗，电费成本增高；热源主机空转，降低了使用寿命；甚至因为普通铜管被腐蚀、破裂致使整个供热系统无法使用，地暖设施重新铺设等。普通铜管的弊端，严重制约着空气能无水地暖产业的推广和发展。
目前，市面上也有覆塑铜管产品，为了防止铜管被腐蚀，在铜管表面覆上一层聚合物材料，但是该类产品特性铜管内通的是水源，覆塑的主要目的一是为了抗腐蚀，二是为了绝热，减少热损失。但是，该类覆塑铜管无法适用于前文所述的无水地暖领域，成为制约技术发展的一大瓶颈。
发明内容
根据以上现有技术的不足，本发明提供一种覆塑铜管，具有优异的导热性、防腐及阻氧性及较强的机械特性，能够作为空气能无水地暖行业冷媒用管材，应用于家庭冬季采暖，环保节能效果明显，具有非常广阔的市场前景。
本发明所述的一种覆塑铜管，其特征在于，包括纯紫铜管和导热性覆塑层，所述导热性覆塑层通过塑覆机加工包裹于纯紫铜管的外表面。
本发明的纯紫铜管坯冷拉成型，采用环刀冷切割(无屑切割)技术分段，其内壁光滑清洁、端口为平整断面。然后以纯紫铜管为基材，将导热性覆塑层通过热塑机加热到220℃左右均匀覆塑到纯紫铜管表面。
本发明作为一种覆塑铜管与空气能无水地暖系统对接安装，该地暖系统工作时，冷媒经主管路、分液器进入覆塑铜管，冷媒带来的热量先经过纯紫铜管传导至导热性覆塑层，再向外部散发。
其中，优选方案如下：
所述纯紫铜管为软态纯紫铜管，牌号TP2、壁厚为0.25-1.5mm、外径为2-8mm。
所述导热性覆塑层的材质为高密度聚乙烯(HDPE)或改性高密度聚乙烯，厚度0.1-2mm。
所述改性高密度聚乙烯具体为：在高密度聚乙烯原料中加入晶型为球形的纳米铜粉，平均粒径50nm，纳米铜粉的掺入量占高密度聚乙烯原料质量的3.5％～8.5％。
所述改性高密度聚乙烯还可以具体为：在高密度聚乙烯原料中加入导热球型氧化铝，平均粒径0.5um，导热球型氧化铝的掺入量占高密度聚乙烯原料质量的3.5％～8.5％。
本发明的优点在于：
(1)所述的纯紫铜管和导热性覆塑层的选料，导热散热效果是目前该领域内最高的。
(2)所述的导热性覆塑层材料具有优异的机械强度、耐热、耐酸碱、耐腐蚀及阻氧性能，保证了纯紫铜管在运输、安装时不会碰划伤，预埋后在50年内不会被腐蚀，基本与建筑物同寿。
(3)所述的覆塑铜管的加工生产工艺，确保了管内壁均匀、清洁、光滑，不会出现冷媒堵塞，使系统散热均匀。
(4)本发明的应用，彻底解决了空气能无水地暖产业发展瓶颈，无水地暖可直接取代水暖，不再需要与水进行热交换，取消了分集水器、水泵、水箱、电磁阀等，大大降低了造价成本，减少安装空间。该产品可埋在水泥层中50年不腐蚀损坏，提高无水地暖寿命，降低后期售后维修成本。
附图说明
图1为本发明的结构示意图；
图中：1、纯紫铜管2、导热性覆塑层。
具体实施方式
以下结合实施例和附图对本发明做进一步说明。
实施例1：
如图1所示，一种覆塑铜管，包括纯紫铜管和1导热性覆塑层2，所述导热性覆塑层2通过塑覆机加工包裹于纯紫铜管1的外表面。
纯紫铜管1坯冷拉成型，采用环刀冷切割(无屑切割)技术分段，其内壁光滑清洁、端口为平整断面。然后以纯紫铜管1为基材，将导热性覆塑层2通过单螺杆挤出机加热到220℃左右均匀覆塑到纯紫铜管1表面。
本实施例作为一种覆塑铜管与空气能无水地暖系统对接安装，该地暖系统工作时，冷媒经主管路、分液器进入覆塑铜管，冷媒带来的热量先经过纯紫铜管1传导至导热性覆塑层2，再向外部散发。
其中，所述纯紫铜管1为软态纯紫铜管，牌号TP2、壁厚为0.3mm、外径为5mm。
所述导热性覆塑层2的材质为改性高密度聚乙烯，厚度1mm。所述改性高密度聚乙烯具体为：在高密度聚乙烯原料中加入晶型为球形的纳米铜粉，平均粒径50nm，纳米铜粉的掺入量占高密度聚乙烯原料质量的5％。
实施例2：
如图1所示，一种覆塑铜管，包括纯紫铜管和1导热性覆塑层2，所述导热性覆塑层2通过塑覆机加工包裹于纯紫铜管1的外表面。
纯紫铜管1坯冷拉成型，采用环刀冷切割(无屑切割)技术分段，其内壁光滑清洁、端口为平整断面。然后以纯紫铜管1为基材，将导热性覆塑层2通过热塑机加热到220℃左右均匀覆塑到纯紫铜管1表面。
本实施例作为一种覆塑铜管与空气能无水地暖系统对接安装，该地暖系统工作时，冷媒经主管路、分液器进入覆塑铜管，冷媒带来的热量先经过纯紫铜管1传导至导热性覆塑层2，再向外部散发。
其中，所述纯紫铜管1为软态纯紫铜管，牌号TP2、壁厚为0.5mm、外径为5mm。
所述导热性覆塑层2的材质为改性高密度聚乙烯，厚度1mm。所述改性高密度聚乙烯还可以具体为：在高密度聚乙烯原料中加入导热球型氧化铝，平均粒径0.5um，导热球型氧化铝的掺入量占高密度聚乙烯原料质量的5％。
实施例3：
如图1所示，一种覆塑铜管，包括纯紫铜管和1导热性覆塑层2，所述导热性覆塑层2通过塑覆机加工包裹于纯紫铜管1的外表面。
纯紫铜管1坯冷拉成型，采用环刀冷切割(无屑切割)技术分段，其内壁光滑清洁、端口为平整断面。然后以纯紫铜管1为基材，将导热性覆塑层2通过热塑机加热到220℃左右均匀覆塑到纯紫铜管1表面。
本实施例作为一种覆塑铜管与空气能无水地暖系统对接安装，该地暖系统工作时，冷媒经主管路、分液器进入覆塑铜管，冷媒带来的热量先经过纯紫铜管1传导至导热性覆塑层2，再向外部散发。
其中，所述纯紫铜管1为软态纯紫铜管，牌号TP2、壁厚为0.5mm、外径为5mm。
所述导热性覆塑层2的材质为高密度聚乙烯原料，厚度1mm。

Claims (5)

1.一种覆塑铜管，其特征在于，包括纯紫铜管和导热性覆塑层，所述导热性覆塑层通过塑覆机加工包裹于纯紫铜管的外表面。
2.根据权利要求1所述的一种覆塑铜管，其特征在于，所述纯紫铜管为软态纯紫铜管，牌号TP2、壁厚为0.25-1.5mm、外径为2-8mm。
3.根据权利要求1所述的一种覆塑铜管，其特征在于，所述导热性覆塑层的材质为高密度聚乙烯或改性高密度聚乙烯，厚度0.1-2mm。
4.根据权利要求3所述的一种覆塑铜管，其特征在于，所述改性高密度聚乙烯具体为：在高密度聚乙烯原料中加入晶型为球形的纳米铜粉，平均粒径50nm，纳米铜粉的掺入量占高密度聚乙烯原料原料质量的3.5％～8.5％。
5.根据权利要求3所述的一种覆塑铜管，其特征在于，所述改性高密度聚乙烯具体为：在高密度聚乙烯原料中加入导热球型氧化铝，平均粒径0.5um，导热球型氧化铝的掺入量占高密度聚乙烯原料质量的3.5％～8.5％。
CN201910563626.6A 2019-06-26 2019-06-26 一种覆塑铜管 Pending CN112140645A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910563626.6A CN112140645A (zh) 2019-06-26 2019-06-26 一种覆塑铜管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910563626.6A CN112140645A (zh) 2019-06-26 2019-06-26 一种覆塑铜管

Publications (1)

Publication Number Publication Date
CN112140645A true CN112140645A (zh) 2020-12-29

Family

ID=73868398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910563626.6A Pending CN112140645A (zh) 2019-06-26 2019-06-26 一种覆塑铜管

Country Status (1)

Country Link
CN (1) CN112140645A (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103224663A (zh) * 2013-05-17 2013-07-31 辽宁康泰塑胶科技有限公司 一种低耗能塑料地暖管材及制备方法
CN103756092A (zh) * 2014-01-02 2014-04-30 大禹节水（天津）有限公司 薄壁耐高压pe软管及其制备方法
CN104629147A (zh) * 2015-02-09 2015-05-20 杭州波达塑料科技股份有限公司 一种耐高温聚乙烯双壁波纹管及制备方法
CN107090119A (zh) * 2017-06-09 2017-08-25 长春金鹏塑钢制品有限公司 一种增加导热性的抗压材料及其制备方法
CN208535348U (zh) * 2017-12-27 2019-02-22 杭州杭一科技有限公司 一种新型室内冷热水管及其安装结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103224663A (zh) * 2013-05-17 2013-07-31 辽宁康泰塑胶科技有限公司 一种低耗能塑料地暖管材及制备方法
CN103756092A (zh) * 2014-01-02 2014-04-30 大禹节水（天津）有限公司 薄壁耐高压pe软管及其制备方法
CN104629147A (zh) * 2015-02-09 2015-05-20 杭州波达塑料科技股份有限公司 一种耐高温聚乙烯双壁波纹管及制备方法
CN107090119A (zh) * 2017-06-09 2017-08-25 长春金鹏塑钢制品有限公司 一种增加导热性的抗压材料及其制备方法
CN208535348U (zh) * 2017-12-27 2019-02-22 杭州杭一科技有限公司 一种新型室内冷热水管及其安装结构

Similar Documents

Publication Publication Date Title
CN105443879A (zh) 城市供热工程用复合管及其加工工艺
CN207246645U (zh) 硫酸输送管道防冻装置
CN112140645A (zh) 一种覆塑铜管
CN113665213A (zh) 一种耐腐蚀抗高温高压管道及其制作方法
CN201096234Y (zh) 带阻氧层的塑料管材
CN206206820U (zh) 一种内衬外涂管
CN209414796U (zh) 一种环保型预制直埋保温管
CN109677069B (zh) 一种多层复合型高导热辐照交联地暖管材及其制备方法
CN204573352U (zh) 一种保温管
CN201836601U (zh) 一种新型保温管
CN101526164B (zh) 一种多层保温管及其制造方法
CN110815767A (zh) 一种耐热性聚乙烯复合管的制造方法
CN201096235Y (zh) 带表皮发泡层的塑料管材
CN209132649U (zh) 液态温控瓷砖及液态温控系统
CN201704551U (zh) 洗衣机加热器
CN208431516U (zh) 一种抗腐蚀长寿型水管
CN101817217A (zh) 导热塑料管的制造方法
WO2022095309A1 (zh) 一种复合材料熔焊管材
CN206018034U (zh) 一种用于物料输送的管道结构
CN213982341U (zh) 一种工业用耐腐蚀抗老化pp管材
CN216382900U (zh) 一种耐高压hdpe给水管
CN200989488Y (zh) 一种连续长度的塑料保温管
CN201333800Y (zh) 塑料加工机械纳米红外节能加热器
CN202302354U (zh) 一种复合pp管
CN218780950U (zh) 一种新型暖通管

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20201229