CN104121444B - 一种膨胀节 - Google Patents

一种膨胀节 Download PDF

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Publication number
CN104121444B
CN104121444B CN201410352708.3A CN201410352708A CN104121444B CN 104121444 B CN104121444 B CN 104121444B CN 201410352708 A CN201410352708 A CN 201410352708A CN 104121444 B CN104121444 B CN 104121444B
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expansion joint
female connector
expansion
connector cylinder
sleeve
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CN104121444A (zh
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叶春会
王泽平
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Dongying Zhongwang Petroleum Machinery Co ltd
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Anhui Jia Mu Rubber Industry Co Ltd
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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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints Allowing Movement (AREA)

Abstract

本发明公开了一种膨胀节，膨胀节包括膨胀节本体和安装在膨胀节两端的连接法兰，膨胀节本体包括左接套筒、右接套筒、内套筒、外套筒、弹簧管和膨胀管，内套筒套在右接套筒内部，右接套筒连接进口法兰，左接套筒连接出口法兰，左接套筒和右接套筒内径相同且均由耐热材料制成，连接处成锯齿状啮合并留有膨胀间隙，外套筒由橡胶材料制成，套在左接套筒和右接套筒外部，弹簧管由弹簧钢制成外层包裹橡胶，卷成弹簧状，套在外套筒外部，紧固外套筒，膨胀节外部装有弹簧钢制成的膨胀管，膨胀管内部装有耐热物质制造的填充料。本发明在膨胀节不同区域采用了不同材料，增加了膨胀节的耐高温能力，通过保温隔热结构设计，提高了膨胀节的使用性能和寿命。

Description

一种膨胀节
技术领域
本发明涉及环保机械领域，特别涉及一种膨胀节。
背景技术
膨胀节是为补偿因温度差与机械振动引起的附加应力，而设置在容器壳体或管道上的一种挠性结构。利用膨胀节工作主体的有效伸缩变形，以吸收管线、导管、容器等由热胀冷缩等原因而产生的尺寸变化，或补偿管线、导管、容器等的轴向、横向和角向位移，也可用于降噪减振。已广泛应用与环保、化工、冶金等领域。在环保领域中，为了防止供热管道升温时，由于热伸长或温度应力而引起管道变形或破坏，需要在管道上设置膨胀节，以补偿管道的热伸长，从而减小管壁的应力和作用在阀件或支架结构上的作用力。
现有的膨胀节大多采用单一材料制造，抗高温效果差，使用寿命短。某些老式膨胀节还存在漏气等缺陷，对巡视人员和周围环境存在巨大安全隐患。
发明内容
本发明所要解决的技术问题是提供一种膨胀节，左接套筒和右接套筒可拆卸连接，便于膨胀节进行安装和清理，以解决现有技术中导致的上述多项缺陷。
为实现上述目的，本发明提供以下的技术方案：一种膨胀节，包括膨胀节本体和安装在膨胀节两端的连接法兰，所述膨胀节本体包括左接套筒、右接套筒、内套筒、外套筒、弹簧管和膨胀管，所述的内套筒套在右接套筒内部，右接套筒连接进口法兰，左接套筒连接出口法兰，左接套筒的右端部和右接套筒的左端部相互啮合，左接套筒和右接套筒内径相同且均由耐热材料制成，连接处成锯齿状啮合并留有膨胀间隙，外套筒由橡胶材料制成，套在左接套筒和右接套筒外部，弹簧管由弹簧钢制成外层包裹橡胶，卷成弹簧状，套在外套筒外部，紧固外套筒，膨胀节外部装有弹簧钢制成的膨胀管，膨胀管内部装有耐热物质制造的填充料。
优选的，所述右接套筒连接进口法兰，左接套筒连接出口法兰，左接套筒和右接套筒内径相同且均由耐热材料制成，连接处成锯齿状啮合并留有膨胀间隙。
优选的，所述外套筒由橡胶材料制成，套在左接套筒和右接套筒外部，并留有膨胀间隙。
优选的，所述弹簧管由弹簧钢制成外层包裹橡胶，卷成弹簧状，套在外套筒外部，紧固外套筒。
优选的，所述膨胀节外部装有弹簧钢制成的膨胀管，膨胀管内部装有耐热物质制造的填充料。
采用以上技术方案的有益效果是：本发明设计合理，安装方便，结构紧凑，左接套筒和右接套筒由耐热材料制成，提高了设备的耐高温性，膨胀节外部设有膨胀管，并填充耐热物质，提高了膨胀节的安全性和使用寿命。
附图说明
图1是本发明一种膨胀节的结构示意图；
图2是图1所示弹簧管的结构示意图。
其中，1—出口法兰、2—进口法兰、3—内套筒、4—左接套筒、5—右接套筒、6—外套筒、7—弹簧管、8—膨胀管、9—填充料、10—螺钉。
具体实施方式
下面结合附图详细说明本发明一种膨胀节的优选实施方式。
图1出示本发明一种膨胀节的具体实施方式：该膨胀节，包括膨胀节本体和安装在膨胀节两端的连接法兰，所述膨胀节本体包括内套筒3、左接套筒4、右接套筒5、外套筒6、弹簧管7和膨胀管8，所述的内套筒套3在右接套筒5内部，右接套筒5连接进口法兰2，左接套筒4连接出口法兰1，左接套筒4和右接套筒5内径相同且均由耐热材料制成，从而确保高温度介质进入膨胀节时，外套筒不被烧坏，左接套筒4和右接套筒5的连接处成锯齿状啮合并留有膨胀间隙，一般间隙范围在10mm至50mm之间。外套筒6由橡胶材料制成，保障了其很好的变形弹力，外套筒6套在左接套筒4和右接套筒5外部，并留有10mm至100mm的膨胀间隙。弹簧管7由弹簧钢制成外层包裹橡胶，卷成弹簧状，套在外套筒6外部，紧固外套筒6，膨胀节外部通过螺钉10固定有弹簧钢制成的膨胀管8，膨胀管8内部装有耐热物质制造的填充料9，可采用陶瓷纤维、石棉或者玻璃纤维等材料。介质由膨胀节右端的进口法兰2进入管内，由左端的出口法兰1出膨胀节。
图2出示弹簧管7内部结构，心部为弹簧钢制成的弹簧，外表包裹橡胶外套，结构紧凑，在受热时可自由膨胀收缩，比传统波纹管耐压性高。
以上的仅是本发明的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (4)

1.一种膨胀节，其特征在于：所述膨胀节包括膨胀节本体和安装在膨胀节两端的连接法兰，所述膨胀节本体包括左接套筒、右接套筒、内套筒、外套筒、弹簧管和膨胀管，所述的内套筒套在右接套筒内部，右接套筒连接进口法兰，左接套筒连接出口法兰，左接套筒的右端部和右接套筒的左端部相互啮合，外套筒套在左接套筒和右接套筒外部，弹簧管套住外套筒，膨胀节外部设有膨胀管，膨胀管内与弹簧管之间装有耐热物质制造的填充料，外套筒由橡胶材料制成，套在左接套筒和右接套筒外部，并留有膨胀间隙。
2.根据权利要求1所述的膨胀节，其特征在于：所述右接套筒连接进口法兰，左接套筒连接出口法兰，左接套筒和右接套筒内径相同且均由耐热材料制成，连接处成锯齿状啮合并留有膨胀间隙。
3.根据权利要求1所述的膨胀节，其特征在于：所述弹簧管由弹簧钢制成外层包裹橡胶，卷成弹簧状，套在外套筒外部，紧固外套筒。
4.根据权利要求1所述的膨胀节，其特征在于：所述膨胀节外部装有弹簧钢制成的膨胀管，膨胀管内部装有耐热物质制造的填充料。
CN201410352708.3A 2014-07-23 2014-07-23 一种膨胀节 Expired - Fee Related CN104121444B (zh)

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Publication number Priority date Publication date Assignee Title
CN109099255A (zh) * 2018-06-20 2018-12-28 朱海军 非金属膨胀节蒙皮结构
CN112113042A (zh) * 2020-09-28 2020-12-22 泰州市盛祥纸制品有限公司 一种降噪排水管

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167430A (en) * 1991-11-19 1992-12-01 Manville Corporation Automotive exhaust system decoupler with resilient sleeve
US5437479A (en) * 1992-10-06 1995-08-01 Feodor Burgmann Dichtungswerke Gmbh & Co. Flexible connection arrangement for the two pipe portions particularly for motor vehicle exhausts
CN101487552A (zh) * 2009-03-03 2009-07-22 江苏亚星波纹管有限公司 一种新型的非金属膨胀节
CN201373206Y (zh) * 2008-12-25 2009-12-30 赵德威 余热发电用织物膨胀节
CN201706128U (zh) * 2010-05-11 2011-01-12 秦皇岛北方管业有限公司 一种自闭式全密封套筒补偿器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167430A (en) * 1991-11-19 1992-12-01 Manville Corporation Automotive exhaust system decoupler with resilient sleeve
US5437479A (en) * 1992-10-06 1995-08-01 Feodor Burgmann Dichtungswerke Gmbh & Co. Flexible connection arrangement for the two pipe portions particularly for motor vehicle exhausts
CN201373206Y (zh) * 2008-12-25 2009-12-30 赵德威 余热发电用织物膨胀节
CN101487552A (zh) * 2009-03-03 2009-07-22 江苏亚星波纹管有限公司 一种新型的非金属膨胀节
CN201706128U (zh) * 2010-05-11 2011-01-12 秦皇岛北方管业有限公司 一种自闭式全密封套筒补偿器

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