CN102032406A - Quake-proof joint of buried pipe network - Google Patents
Quake-proof joint of buried pipe network Download PDFInfo
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- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 38
- 230000009471 action Effects 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明提供一种保障在地震作用下埋地管网的安全、具有自复位能力的埋地管网抗震接头。它是由连接管道、右连接管道法兰、左连接管道法兰、套环、右管道法兰、左管道法兰、形状记忆合金棒、右形状记忆合金螺栓、右螺栓、左螺栓和左形状记忆合金螺栓组成的，连接管道连接连接管道法兰，套环位于连接管道中部，连接管道法兰通过形状记忆合金螺栓连接管道法兰，管道法兰连接螺栓，螺栓连接形状记忆合金棒。本发明保障埋地管网在地震作用下的安全，减小地震次生灾害。本发明具有自复位能力，在震后不需修复，降低维修费用。
The invention provides a buried pipe network anti-seismic joint which guarantees the safety of the buried pipe network under earthquake action and has self-resetting capability. It is composed of connecting pipe, right connecting pipe flange, left connecting pipe flange, collar, right pipe flange, left pipe flange, shape memory alloy rod, right shape memory alloy bolt, right bolt, left bolt and left shape Composed of memory alloy bolts, the connecting pipe is connected to the connecting pipe flange, the collar is located in the middle of the connecting pipe, the connecting pipe flange is connected to the pipe flange through the shape memory alloy bolt, the pipe flange is connected to the bolt, and the bolt is connected to the shape memory alloy rod. The invention guarantees the safety of the buried pipeline network under the action of an earthquake and reduces the secondary disasters caused by the earthquake. The invention has self-resetting ability, does not need to be repaired after the earthquake, and reduces the maintenance cost.
Description
(一)技术领域(1) Technical field
本发明涉及管道技术，具体说就是一种埋地管网抗震接头。The invention relates to pipeline technology, in particular to a buried pipeline network anti-seismic joint.
(二)背景技术(2) Background technology
生命线工程是城市运行的重要基础设施，其中管网系统是供水、供气、供热、输油的重要载体。半个世纪以来，全世界各国发生的多次地震，都对城市管网系统造成严重破坏，不仅影响地震救灾，也对灾后工业和居民生活的恢复造成严重影响，震后的管网修复也需投入大量的资金。Lifeline engineering is an important infrastructure for urban operation, and the pipeline network system is an important carrier for water supply, gas supply, heat supply, and oil transportation. Over the past half a century, many earthquakes in various countries around the world have caused serious damage to the urban pipe network system, which not only affects earthquake relief, but also has a serious impact on the recovery of industries and residents' lives after the disaster. The repair of the pipe network after the earthquake also requires Invest a lot of money.
埋地管网在地震作用下，由于动力作用和地震引起的地面大变形，将导致管网的拉压和弯曲破坏，造成管道连接处的破裂而导致泄漏事件的发生，从而引起严重的地震次生灾害。埋地管网系统的各段管道之间，通常采用柔性连接或以法兰为基础的刚性连接。在地震作用下，管道的直接柔性连接易发生管道之间的松动，从而引起泄漏事故。而以法兰为基础的刚性连接，在地震作用下由于法兰部位产生较大的拉应力和弯曲变形，则容易引起连接部位的破坏，也会导致地震次生灾害。对于埋地管网系统的连接，目前尚未有针对地震作用的特殊装置，因此发展新型的埋地管网抗震接头，对于提高管网在地震作用下的抗震性能，减小地震灾害和降低修复费用，具有重要的应用价值。Under the action of earthquake, the buried pipeline network will cause the tension, compression and bending damage of the pipeline network due to the dynamic action and the large deformation of the ground caused by the earthquake, resulting in the rupture of the pipeline connection and the occurrence of leakage events, which will cause serious earthquakes. disaster. Between the various sections of the buried pipe network system, flexible connections or rigid connections based on flanges are usually used. Under earthquake action, the direct flexible connection of pipelines is prone to loosening between pipelines, thus causing leakage accidents. The rigid connection based on the flange, under the action of the earthquake, due to the large tensile stress and bending deformation of the flange part, it is easy to cause damage to the connection part, and it will also lead to secondary earthquake disasters. For the connection of the buried pipe network system, there is no special device for earthquake action. Therefore, the development of a new type of buried pipe network anti-seismic joint will improve the anti-seismic performance of the pipe network under earthquake action, reduce earthquake disasters and reduce repair costs. , has important application value.
结构振动控制技术是近几十年发展起来的减轻结构在地震和风作用下振动的重要技术手段，该技术主要通过在土木工程结构中增设阻尼耗能元件和吸振系统，耗散结构振动的能量，从而达到减轻结构动力反映的目的。形状记忆合金是一种新型的功能材料，由于该材料具有自感知、自驱动和自恢复的功能，已经成为土木工程领域的一类重要智能材料。形状记忆合金在奥氏体状态具有超弹性特性，能够实现不超过8％的大变形和可恢复变形，是一种优良的土木工程领域振动控制的智能材料。Structural vibration control technology is an important technical means developed in recent decades to reduce the vibration of structures under the action of earthquake and wind. This technology mainly dissipates the energy of structural vibration by adding damping energy-dissipating elements and vibration-absorbing systems to civil engineering structures. So as to achieve the purpose of reducing the structural dynamic response. Shape memory alloy is a new type of functional material. Because of its self-sensing, self-driving and self-restoring functions, it has become an important class of intelligent materials in the field of civil engineering. Shape memory alloys have superelastic properties in the austenitic state, can achieve large deformations of no more than 8% and recoverable deformations, and are excellent smart materials for vibration control in the field of civil engineering.
(三)发明内容(3) Contents of the invention
本发明的目的在于提供一种保障在地震作用下埋地管网的安全、具有自复位能力的埋地管网抗震接头。The object of the present invention is to provide a buried pipe network anti-seismic joint with self-resetting ability to ensure the safety of the buried pipe network under earthquake action.
本发明的目的是这样实现的：它是由连接管道、右连接管道法兰、左连接管道法兰、套环、右管道法兰、左管道法兰、形状记忆合金棒、右形状记忆合金螺栓、右螺栓、左螺栓和左形状记忆合金螺栓组成的，连接管道分别连接右连接管道法兰和左连接管道法兰，套环位于管道中部，左连接管道法兰通过左形状记忆合金螺栓连接左管道法兰，右连接管道法兰通过右形状记忆合金螺栓连接右管道法兰，右管道法兰连接右螺栓，右螺栓连接形状记忆合金棒，形状记忆合金棒穿过套环连接左螺栓，左螺栓连接左管道法兰。The purpose of the present invention is achieved like this: it is made up of connecting pipeline, right connecting pipeline flange, left connecting pipeline flange, collar, right pipeline flange, left pipeline flange, shape memory alloy rod, right shape memory alloy bolt , the right bolt, the left bolt and the left shape memory alloy bolt, the connecting pipe is respectively connected to the right connecting pipe flange and the left connecting pipe flange, the collar is located in the middle of the pipe, and the left connecting pipe flange is connected to the left through the left shape memory alloy bolt. Pipe flange, the right connection pipe flange is connected to the right pipe flange through the right shape memory alloy bolt, the right pipe flange is connected to the right bolt, the right bolt is connected to the shape memory alloy rod, the shape memory alloy rod passes through the collar to connect the left bolt, the left Bolt to left pipe flange.
本发明一种埋地管网抗震接头，针对埋地管网在地震作用下的破坏特征，提出一种新型的埋地管网抗震接头，其主要思想是通过在相邻管道间增设连接管道，并采用形状记忆合金连接棒和形状记忆合金螺栓，以实现地震作用下管道连接部位的大变形而不泄露，从而保障埋地管网在地震作用下的安全以及减小地震次生灾害。本发明具有自复位能力，在震后不需修复，降低维修费用。The present invention is an anti-seismic joint of buried pipe network. Aiming at the damage characteristics of buried pipe network under the action of earthquake, a new anti-seismic joint of buried pipe network is proposed. The main idea is to add connecting pipes between adjacent pipes, And shape memory alloy connecting rods and shape memory alloy bolts are used to realize large deformation of pipeline connection parts under earthquake without leakage, so as to ensure the safety of buried pipeline network under earthquake and reduce earthquake secondary disasters. The invention has self-resetting ability, does not need to be repaired after the earthquake, and reduces the maintenance cost.
(四)附图说明(4) Description of drawings
图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
(五)具体实施方式(5) Specific implementation methods
下面结合附图举例对本发明作进一步说明。The present invention will be further described below with examples in conjunction with the accompanying drawings.
实施例1：结合图1，本发明一种埋地管网抗震接头，它是由连接管道(1)、右连接管道法兰(2)、左连接管道法兰(3)、套环(4)、右管道法兰(5)、左管道法兰(6)、形状记忆合金棒(7)、右形状记忆合金螺栓(8)、右螺栓(9)、左螺栓(10)和左形状记忆合金螺栓(11)组成的，连接管道(1)分别连接右连接管道法兰(2)和左连接管道法兰(3)，套环(4)位于管道(1)中部，左连接管道法兰(3)通过左形状记忆合金螺栓(11)连接左管道法兰(6)，右连接管道法兰(2)通过右形状记忆合金螺栓(8)连接右管道法兰(5)，右管道法兰(5)连接右螺栓(9)，右螺栓(9)连接形状记忆合金棒(7)，形状记忆合金棒(7)穿过套环(4)连接左螺栓(10)，左螺栓(10)连接左管道法兰(6)。Embodiment 1: In conjunction with Fig. 1, a kind of anti-seismic joint of buried pipe network of the present invention, it is made of connecting pipe (1), right connecting pipe flange (2), left connecting pipe flange (3), collar (4 ), right pipe flange (5), left pipe flange (6), shape memory alloy rod (7), right shape memory alloy bolt (8), right bolt (9), left bolt (10) and left shape memory alloy Composed of alloy bolts (11), the connecting pipe (1) is respectively connected to the right connecting pipe flange (2) and the left connecting pipe flange (3), the collar (4) is located in the middle of the pipe (1), and the left connecting pipe flange (3) Connect the left pipe flange (6) through the left shape memory alloy bolt (11), connect the right pipe flange (2) connect the right pipe flange (5) through the right shape memory alloy bolt (8), the right pipe method Lan (5) connects right bolt (9), right bolt (9) connects shape memory alloy rod (7), shape memory alloy rod (7) passes collar (4) and connects left bolt (10), left bolt (10 ) to the left pipe flange (6).
实施例2：结合图1，本发明提供一种增加埋地管道连接抗震能力，从而保护管道在地震作用下不致发生破坏的埋地管网抗震接头装置。在两端较长的管道中间增加一段连接管道，连接管道上有两个法兰盘，用于与两端较长管道的连接。在法兰盘的两侧分别有两段套管，其外径比与之相连的管道内径略小，其上嵌有三处橡胶环。两端管道的法兰盘通过形状记忆合金棒相连，从而达到恢复变形的能力。连接管道法兰盘连接螺栓采用形状记忆合金材质，保证两者之间可以发生较大的相对变形，同时保证螺栓在恢复变形后完好，不发生破坏。Embodiment 2: In combination with FIG. 1 , the present invention provides an anti-seismic joint device for buried pipeline networks that increases the anti-seismic capacity of buried pipeline connections, thereby protecting pipelines from damage under earthquake action. A section of connecting pipe is added in the middle of the longer pipes at both ends, and there are two flanges on the connecting pipe for connection with the longer pipes at both ends. There are two sections of sleeves on both sides of the flange respectively, the outer diameter of which is slightly smaller than the inner diameter of the pipe connected to it, and three rubber rings are embedded on it. The flanges of the pipes at both ends are connected by shape memory alloy rods, so as to achieve the ability to recover from deformation. The connecting bolts of the flanges of the connecting pipes are made of shape memory alloy to ensure that a relatively large relative deformation can occur between the two, and at the same time ensure that the bolts are intact after recovering from deformation without damage.
利用上述埋地管网抗震接头以替代现有的管网接头，在地震作用下相邻管网能够发生较大的变形而不发生破坏和泄露，同时形状记忆合金棒和螺栓能够耗散地震输入的能量，并实现自复位的功能，不需要任何维修和替换。Using the above-mentioned buried pipe network anti-seismic joints to replace the existing pipe network joints, the adjacent pipe network can undergo large deformation under earthquake without damage and leakage, and the shape memory alloy rods and bolts can dissipate the seismic input energy, and realize the self-resetting function, without any maintenance and replacement.
实施例3：结合图1，本发明埋地管网抗震接头的实施过程如下：Embodiment 3: In conjunction with Fig. 1, the implementation process of the buried pipe network anti-seismic joint of the present invention is as follows:
1、连接管道构造。在管网管道中间增加一段连接管道，连接管道上有两个法兰盘，分别用于和两端管道的连接。在法兰盘的两侧分别有两段套管，其外径比与之相连的较长管道的内径略小，其上嵌有三处橡胶环，橡胶环的外径略大于与之相连的较长管道的内径。当套管与较长管道相互嵌套后，橡胶环发生挤压，保证管道内运输物质不发生泄漏。而当套管与相连的较长管道发生相对位移，即两者发生脱离时，由于橡胶环具有较大的变形能力，可以保证整个位移发生过程中及变形后两管道之间仍无缝隙，管道内的物质仍然不会发生泄漏。1. Connecting pipeline structure. Add a section of connecting pipe in the middle of the pipe network, and there are two flanges on the connecting pipe, which are respectively used to connect with the pipes at both ends. There are two sections of casing on both sides of the flange, the outer diameter of which is slightly smaller than the inner diameter of the longer pipe connected to it, and three rubber rings are embedded on it, and the outer diameter of the rubber ring is slightly larger than the longer pipe connected to it. The inner diameter of the long pipe. When the casing and the longer pipe are nested, the rubber ring is squeezed to ensure that the transported material in the pipe does not leak. However, when the casing and the connected long pipe undergo relative displacement, that is, when the two are separated, because the rubber ring has a large deformation capacity, it can ensure that there is still no gap between the two pipes during the entire displacement process and after deformation, and the pipe The substance inside still won't leak.
2、恢复变形的措施。在较长的管道两端的法兰盘外径要比套管两端的法兰盘外径大，以使套管与较长管道用形状记忆合金棒相连，从而达到更好的恢复变形的能力。具体的实施方法是在套管外壁焊有套环，将形状记忆合金棒穿过该套环，并且在拉紧后两端分别锚固在较长管道的法兰盘上，保证套管与较长管道在发生相对位移后，形状记忆合金的恢复力能够提供足够大的力帮助管道恢复原有形状，从而实现了灾后的恢复功能。2. Measures to restore deformation. The outer diameter of the flanges at both ends of the longer pipe is larger than that of the flanges at both ends of the sleeve, so that the sleeve and the longer pipe are connected with shape memory alloy rods, thereby achieving better ability to recover from deformation. The specific implementation method is to weld a collar on the outer wall of the sleeve, pass the shape memory alloy rod through the collar, and anchor the two ends on the flange of the longer pipeline respectively after tensioning, so as to ensure that the sleeve and the longer After the relative displacement of the pipeline, the restoring force of the shape memory alloy can provide a large enough force to help the pipeline recover its original shape, thereby realizing the post-disaster recovery function.
3、连接法兰盘的螺栓构造。将以往连接管道法兰盘的铁质或钢制的螺栓改用形状记忆合金材质。主要目的在于利用形状记忆合金的大变形能力，在地震作用下当套管与连接管道发生较大变形时，不致于产生断裂破坏，并在震后实现自复位功能。3. The bolt structure connecting the flange. The iron or steel bolts used to connect the pipeline flanges are replaced with shape memory alloys. The main purpose is to use the large deformation capacity of the shape memory alloy to avoid fracture damage when the casing and the connecting pipe undergo large deformation under earthquake action, and to realize the self-resetting function after the earthquake.
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| CN 201010585979 CN102032406A (en) | 2010-12-14 | 2010-12-14 | Quake-proof joint of buried pipe network |
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| CN 201010585979 CN102032406A (en) | 2010-12-14 | 2010-12-14 | Quake-proof joint of buried pipe network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206584A (en) * | 2013-04-24 | 2013-07-17 | 山东大学 | Non-loosened seabed oil pipeline flange connection structure and connection method |
| CN115355377A (en) * | 2021-12-23 | 2022-11-18 | 华北水利水电大学 | Pipe structure self-resetting device |
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| DE3544128A1 (en) * | 1985-12-13 | 1987-06-25 | Wiederaufarbeitung Von Kernbre | Pipe connection having a collar consisting of a memory alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103206584A (en) * | 2013-04-24 | 2013-07-17 | 山东大学 | Non-loosened seabed oil pipeline flange connection structure and connection method |
| CN103206584B (en) * | 2013-04-24 | 2015-05-06 | 山东大学 | Non-loosened seabed oil pipeline flange connection structure and connection method |
| CN115355377A (en) * | 2021-12-23 | 2022-11-18 | 华北水利水电大学 | Pipe structure self-resetting device |
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Open date: 20110427 |