WO2023078036A1 - 列车管泄压试验装置 - Google Patents

列车管泄压试验装置 Download PDF

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Publication number
WO2023078036A1
WO2023078036A1 PCT/CN2022/124452 CN2022124452W WO2023078036A1 WO 2023078036 A1 WO2023078036 A1 WO 2023078036A1 CN 2022124452 W CN2022124452 W CN 2022124452W WO 2023078036 A1 WO2023078036 A1 WO 2023078036A1
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Prior art keywords
pipe
train
pressure relief
test device
tube
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PCT/CN2022/124452
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English (en)
French (fr)
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仝雷
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中车大同电力机车有限公司
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Publication of WO2023078036A1 publication Critical patent/WO2023078036A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/08—Railway vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts

Definitions

  • the present disclosure relates to a pressure relief test device, in particular to a train pipe pressure relief test device, and further relates to a train pipe pressure relief test device for a heavy-duty combined train.
  • the heavy-duty combined train is the main means of transportation for railway freight. Its braking command is mainly transmitted through the compressed air filled in the train tube, and the speed of decompression of the train tube pressure directly affects the braking effect of the train. Therefore, a It is a test device for simulating the pressure release of compressed air to generate a braking command after the train tube of a heavy-duty combined train leaks or even breaks.
  • a train pipe pressure relief test device for trains including a connecting pipe, a test pipe and a cut-off plug.
  • the two ends of the connecting pipe are provided with pipe joints for sealed connection to the train; the test pipe is in airtight communication with the connecting pipe; the cut-off plug is arranged on the test pipe.
  • the connecting pipe includes a first connecting pipe and a second connecting pipe, a three-way joint is sealed between the first connecting pipe and the second connecting pipe, and the three-way joint
  • the third port seal connects the test tube.
  • the first connecting pipe and the second connecting pipe include a plurality of pipe sections, and pipe joints are arranged between each pipe section.
  • the pipe joint is made of low temperature resistant, corrosion resistant, and rust resistant materials.
  • the connecting pipe is made of a material that is resistant to low temperature, corrosion and rust.
  • the connecting pipe is a hose.
  • the connecting pipe is a rubber hose or a metal hose.
  • the test tube is a hard tube.
  • the test pipe is a seamless stainless steel pipe or a carbon steel pipe.
  • the test tube is a rubber hose or a metal hose.
  • the train pipe pressure relief test device proposed in the present disclosure includes a connecting pipe, a test pipe and a cut-off plug. Wherein the two ends of the connecting pipe are provided with pipe joints for sealing connection to the train; the test pipe is in sealing communication with the connecting pipe; the cut-off plug is arranged on the test pipe.
  • the train tube pressure relief test device proposed in this disclosure can more realistically simulate the pressure release of the compressed air in the train tube after the train tube between any intermediate vehicles of the heavy-duty combined train is damaged and broken, making the test data more accurate. Accurate; and the structure is simple, it can be directly connected without any modification to the rolling stock, and can be detached and hung at any time, which is convenient for use and maintenance.
  • Fig. 1 is a structural schematic diagram of a train tube pressure relief test device of the present disclosure.
  • Fig. 2 is a structural schematic diagram of another embodiment of the train tube pressure relief test device of the present disclosure.
  • Fig. 3 is a schematic diagram of the installation position of the train tube pressure relief test device of the present disclosure.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein.
  • relative terms such as “upper” and “lower” are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the drawings Directions for the example described. It will be appreciated that if the illustrated device is turned over so that it is upside down, then elements described as being “upper” will become elements that are “lower”.
  • Other relative terms, such as “top” and “bottom” also have similar meanings.
  • When a structure is "on” another structure it may mean that a structure is integrally formed on another structure, or that a structure is “directly” placed on another structure, or that a structure is “indirectly” placed on another structure through another structure. other structures.
  • Fig. 1 it representatively shows the schematic structural view of the train pipe pressure relief test device 100, specifically shows that the train pipe pressure relief test device 100 includes a connecting pipe 101, a pipe joint 102, a test pipe 103 and a cut-off plug 104 .
  • the two ends of the connecting pipe 101 are provided with pipe joints 102 for sealed connection to the train, the test pipe 103 is in airtight communication with the connecting pipe 101 , and the cut-off plug 104 is arranged on the test pipe 103 .
  • the connecting pipe 101 includes a first connecting pipe 1011 and a second connecting pipe 1012, a tee joint 105 is sealed between the first connecting pipe 1011 and the second connecting pipe 1012, and the third port of the tee joint 105 is sealed and connected to the test tube 103 .
  • the test tube 103 includes a first test tube 1031 and a second test tube 1032 .
  • the train tube pressure relief test device proposed in the present disclosure is described by taking the application to a heavy-duty combined train as an example.
  • the pipe joint 102 is made of low-temperature-resistant, corrosion-resistant, and anti-corrosion materials. It can be made of carbon steel, stainless steel, or copper alloy. It is preferably a ferrule-type pipe joint of GB/T3765. The type of the joint 102 can be selected according to the needs of connection and installation, and is not particularly limited.
  • the connecting pipe 101 is made of low-temperature-resistant, corrosion-resistant, and anti-rust materials.
  • the connecting pipe is usually a hose, preferably a rubber hose that meets the performance requirements of TB/T60, or a metal hose that meets the requirements.
  • the tee joint 105 adopts a straight tee, and in some other embodiments, the tee joint may also adopt an oblique tee.
  • the tee joint 105 can be of equal diameter or different diameter, as long as it is a tee joint that can satisfy the airtightness and reliability of pipeline connection, there is no special limitation.
  • the test pipe 103 is a hard pipe, which can be a steel pipe, preferably a seamless stainless steel pipe or carbon steel pipe conforming to GB/T14976.
  • the test tube 103 can also use a hose that can ensure the safety of the test, such as a rubber hose or a metal hose.
  • the first connecting pipe 1011 and the second connecting pipe 1012 in the train pipe pressure relief test device 100 proposed by the present disclosure include a plurality of pipe sections, and pipe joints are arranged between each pipe section 102.
  • the rest of the components are the same as the embodiment shown in FIG. 1 .
  • the number of connecting pipes depends on the length of each connecting pipe and the distance between the two train cars to be connected.
  • the train pipe pressure relief test device provided in the present disclosure is suitable for air pipelines with an ambient temperature of -50° to 70° and a nominal pressure not greater than 1000KPa, and the inner diameter of the pipeline is greater than 25mm.
  • Fig. 3 shows the installation position of the train pipe pressure relief test device 100 of the present disclosure, wherein the heavy-duty combined train is composed of a locomotive 301 and a vehicle 302. 303 are connected together, when it is necessary to simulate the train pipe pressure relief test of any intermediate vehicle of a heavy-duty combined train, the train pipe pressure relief test device 100 can be connected to the middle of the train pipe 303 between the locomotive 301 and the vehicle 302, Alternatively, the train pipe pressure relief test device 100 may also be connected to the middle of the train pipe 303 between two adjacent vehicles 302 . It is shown in the figure that two train pipe pressure relief test devices 300 are connected, and multiple devices 300 may be connected at required positions, and the present disclosure is not limited thereto.
  • train tube pressure relief test device 100 shown in the drawings and described in this specification is only a few examples of the many types of train tube pressure relief test devices that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are in no way limited to any details of the train tube pressure relief test device or any components of the train tube pressure relief test device shown in the drawings or described in this specification.
  • the use process of the train pipe pressure relief test device proposed in the present disclosure is: under the premise that the cut-off plug 104 is completely closed, the train pipe pressure relief test device 100 is installed between the locomotive 301 and the vehicle 302 between two adjacent vehicles 302, the connecting pipe 101 of the train pipe pressure relief test device is connected with the train pipe 303 through the pipe joint 102 to realize the installation of the train pipe pressure relief test device, and now the connecting pipe 101, three
  • the air pressure in the connecting joint 105 and the first test tube 1031 is the same as the air pressure in the train tube 303, usually 600kPa or 500kPa, and the second test tube 1032 communicates with the external air.
  • the cut-off plug 104 is opened to make the pressure drop in the train pipe 303, which can truly simulate the pressure relief process in the case of any intermediate vehicle train pipe damage or broken hook of the heavy-duty combined train.
  • the rate of train pipe pressure drop can be controlled by truncating the opening and closing of the cock, and the type of braking used at different rates of drop can be simulated. Specifically:
  • the train tube pressure relief test device of the present disclosure can truly simulate the damage and fracture of any intermediate vehicle train tube of a heavy-duty combined train , the pressure relief of the compressed air in the train pipe makes the test data more accurate; and the structure is simple, it can be directly connected without any modification to the rolling stock, can be removed and hung at any time, easy to use and maintain, and can be reused, effectively reducing costs .
  • the train pipe pressure relief test device proposed in the present disclosure includes a connecting pipe, a test pipe and a cut-off plug. Wherein the two ends of the connecting pipe are provided with pipe joints for sealing connection to the train; the test pipe is in sealing communication with the connecting pipe; the cut-off plug is arranged on the test pipe.
  • the train pipe pressure relief test device disclosed in the present disclosure can realize the real simulation of the pressure relief situation of the train pipe damage and rupture of any intermediate vehicle of the heavy-duty combined train, and has a simple structure, and can be directly connected without any modification to the rolling stock, and can be removed and hung at any time. It is convenient to use and maintain, and can be reused, effectively reducing costs.
  • the disclosed train pipe pressure relief test device can make the test data closer to the real situation, and provide better safety guarantee for the actual operation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

一种重载组合列车用列车管泄压试验装置(100)，包括连接管(101)、测试管(103)和截断塞门(104)，连接管(101)两端设置有管接头(102)，用于密封连接于列车；测试管(103)与连接管(101)密封连通；截断塞门(104)设置在测试管(103)上。有益效果：能够真实模拟重载列车用列车管(303)破损断裂出现泄压情况下，列车管路的风压波动情况，使试验数据更加准确接近真实工况，并且结构简单，可以随时摘挂，方便使用和维修。

Description

列车管泄压试验装置
交叉引用
本公开要求于2021年11月08日提交的申请号为202111313088.9、名称为“列车管泄压试验装置”的中国专利公开的优先权，该中国专利公开的全部内容通过引用全部并入本文。
技术领域
本公开涉及泄压试验装置，尤其是涉及一种列车管泄压试验装置，更进一步涉及一种重载组合列车用列车管泄压试验装置。
背景技术
重载组合列车是铁路货运的主要运输工具，其制动指令主要是通过列车管中充满的压缩空气来传递，而列车管压力减压速率的快慢直接影响列车的制动效果，因此需要一种模拟重载组合列车列车管泄露甚至断钩后，压缩空气泄压而产生制动指令的试验装置。
目前，由于列车管管路气压很高，无法人为断开列车管以实现列车管泄压，也就无法真实模拟和监测任意中间车辆列车管破损断裂出现空气压强泄漏现象时，整个列车管管路气压的变化情况。现有技术中的试验装置既无法真实模拟列车管破损断裂情况，又需要对机车车辆做改动，不能实现随时摘挂，结构较为复杂，使用维护不方便。为了更加真实地模拟任意中间车辆列车管泄压情况，使试验数据更加准确接近真实工况，很有必要提供一种结构简单，能够随时摘挂，并且方便使用维护的重载组合列车用列车管泄压试验装置。
公开内容
根据本公开的一个方面，提供一种列车管泄压试验装置，用于列车，包括连接管、测试管和截断塞门。其中所述连接管两端设置有管接头，用于密封连接于所述列车；测试管与所述连接管密封连通；截断塞门设置在所述测试管上。
根据本公开的其中一个实施例，所述连接管包括第一连接管和第二连接管，所述第一连接管与所述第二连接管之间密封设置三通接头，所述三通接头的第三个端口密封连接所述测试管。
根据本公开的其中一个实施例，所述第一连接管和所述第二连接管包括多个管段，每个管段之间设置有管接头。
根据本公开的其中一个实施例，所述管接头采用耐低温、耐腐蚀、防锈蚀的材料制成。
根据本公开的其中一个实施例，所述连接管采用耐低温、耐腐蚀、防锈蚀的材料制成。
根据本公开的其中一个实施例，所述连接管是软管。
根据本公开的其中一个实施例，所述连接管是橡胶软管或者金属软管。
根据本公开的其中一个实施例，所述测试管是硬管。
根据本公开的其中一个实施例，所述测试管是无缝不锈钢管或者碳钢管。
根据本公开的其中一个实施例，所述测试管是橡胶软管或者金属软管。
由上述技术方案可知，本公开提出的列车管泄压试验装置的优点和积极效果在于：
本公开提出的列车管泄压试验装置包括连接管、测试管和截断塞门。其中连接管两端设置有管接头，用于密封连接于列车；测试管与连接管密封连通；截断塞门设置在测试管上。通过上述设计，本公开提出的列车管泄压试验装置，能够实现更加真实地模拟重载组合列车任意中间车辆之间的列车管破损断裂后，列车管内压缩空气的泄压情况，使试验数据更加准确；并且结构简单，不需要对机车车辆做任何改动就可以直接连接，能够随时摘挂，方便使用维护。
本公开中通过以下参照附图对优选实施例的说明，本公开的上述以及其它目的、特征和优点将更加明显。
附图说明
通过参照附图详细描述其示例实施方式，本公开的上述和其它特征及优点将变得更加明显。
图1是本公开的列车管泄压试验装置的结构示意图。
图2是本公开的列车管泄压试验装置的另一实施例的结构示意图。
图3是本公开的列车管泄压试验装置的安装位置示意图。
附图标记说明如下：
100.列车管泄压试验装置；101.连接管；102.管接头；103.测试管；104.截断塞门； 105.三通接头；1011.第一连接管；1012.第二连接管；1031.第一测试管；1032.第二测试管；301.机车；302.车辆；303.列车管。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式。虽然本说明书中使用相对性的用语，例如“上”、“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。其他相对性的用语，例如“顶”、“底”等也作具有类似含义。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
用语“一个”、“一”、“该”和“所述”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”等仅作为标记使用，不是对其对象的数量限制。
参阅图1，其代表性地示出了列车管泄压试验装置100的结构示意图，具体示出了列车管泄压试验装置100包括连接管101、管接头102、测试管103和截断塞门104。其中连接管101两端设置有管接头102，用于密封连接于列车，测试管103与连接管101密封连通，截断塞门104设置在测试管103上。连接管101包括第一连接管1011和第二连接管1012，第一连接管1011与第二连接管1012之间密封设置三通接头105，三通接头105的第三个端口密封连接测试管103。测试管103包括第一测试管1031和第二测试管1032。在该示例性实施例中，本公开提出的列车管泄压试验装置是以应用于重载组合列车为例进行说明的。本领域技术人员容易理解的是，为将本公开的相关设计应用于其他类型的列车，而对下述的具体实施例做出多种改型、添加、替代、删除或其他变化，这些变化仍在本公开提出的列出管泄压试验装置100的原理的范围内。
在本实施例中，管接头102采用耐低温、耐腐蚀、防锈蚀的材料制成，可以采用碳钢或者不锈钢或者铜合金等材料制成，优选采用GB/T3765的卡套式管接头，管接头102的种类可以根据连接安装需要进行选择，不做特别限制。
连接管101采用耐低温、耐腐蚀、防锈蚀的材料制成，连接管通常是软管，优选采用符合TB/T60性能要求的橡胶软管，也可以采用符合条件的金属软管。
在本实施例中，三通接头105采用正三通，在其他的一些实施例中，三通接头也可以采用斜三通。三通接头105采用等径或异径都可以，只要是能够满足管路连接气密性和可靠性的三通接头都可以，不做特别限制。
在本实施例中，测试管103是硬管，可以采用钢管，优选采用符合GB/T14976的无缝不锈钢管或者碳钢管。在其他一些实施例中，测试管103也可以采用能够保证试验安全性的软管，例如橡胶软管或者金属软管。
如图2所示，在本实施例中，本公开提出的列车管泄压试验装置100中的第一连接管1011和第二连接管1012包括多个管段，每个管段之间设置有管接头102。其余组成件与图1所示的实施例均相同。在其他的一些实施例中，连接管可以是多根，相应的管接头102也可以是多个。连接管的数量取决于每一截连接管的长度和所需要连接的两个列车车辆之间的距离。
本公开提供的列车管泄压试验装置适用于环境温度-50°～70°，公称压力不大于1000KPa的空气管路，管路内径大于25mm。
图3示出了本公开的列车管泄压试验装置100的安装位置，其中重载组合列车由机车301与车辆302组成，正常情况下，机车301与车辆302以及车辆302之间均通过列车管303连接在一起，当需要模拟重载组合列车任意中间车辆断钩列车管泄压试验时，可以将列车管泄压试验装置100接入到机车301与车辆302之间的列车管303的中部，或者也可以将列车管泄压试验装置100接入到两辆相邻车辆302之间的列车管303的中部。图中示出的是接入了两个列车管泄压试验装置300，也可以在需要的位置接入多个，本公开并不以此为限。
在此应注意，附图中示出而且在本说明书中描述的列车管泄压试验装置100仅仅是能够采用本公开原理的许多种列车管泄压试验装置中的几个示例。应当清楚地理解，本公开的原理绝非仅限于附图中示出或本说明书中描述的列车管泄压试验装置的任何细节或列车管泄压试验装置的任何部件。
上述是对本公开提出的列车管泄压试验装置的几个示例性实施例的详细说明，以下将对本公开提出的列车管泄压试验装置的使用过程进行示例性说明。
结合附图1至图3，本公开提出的列车管泄压试验装置的使用过程是：在截断塞门104完全关闭的前提下，将列车管泄压试验装置100安装到机车301与车辆302 之间，或者安装到两辆相邻车辆302之间，列车管泄压试验装置的连接管101通过管接头102与列车管303连接实现列车管泄压实验装置的安装，此时连接管101、三通接头105和第一测试管1031内的空气气压与列车管303中的空气气压相同，通常均为600kPa或500kPa，第二测试管1032与外接空气连通。试验开始时，打开截断塞门104使得列车管303中的压力下降，可以真实模拟重载组合列车任意中间车辆列车管破损、断钩等情况下的泄压过程。
列车管压力下降的速率可以通过截断塞门的开闭大小来控制，并且可以模拟不同下降速率下所采用制动类型。具体为：
当列车管压力以小于40kPa/min的速率下降时，不产生制动，列车正常运行。
当列车管压力以10kPa/s～40kPa/s的速率下降时，在列车管压力减小到40kPa之前，产生普通制动。
当列车管压力以大于80kPa/s速率下降时，产生紧急制动。
通过上述本公开的列车管泄压试验装置在列车管泄压试验中的使用过程，可以得出本公开的列车管泄压试验装置，能够真实模拟重载组合列车任意中间车辆列车管破损断裂后，列车管内压缩空气的泄压情况，使试验数据更加准确；并且结构简单，不需要对机车车辆做任何改动就可以直接连接，能够随时摘挂，方便使用维护，并可以重复使用，有效降低成本。
综上所述，本公开提出的列车管泄压试验装置包括连接管、测试管和截断塞门。其中连接管两端设置有管接头，用于密封连接于列车；测试管与连接管密封连通；截断塞门设置在测试管上。本公开的列车管泄压试验装置能够实现真实模拟重载组合列车任意中间车辆列车管破损断裂泄压情况，并且结构简单，不需要对机车车辆做任何改动就可以直接连接，能够随时摘挂，方便使用维护，并可以重复使用，有效降低成本。本公开的列车管泄压试验装置能够使得试验数据更接近真实状况，为实际运行提供更好的安全保障。
应可理解的是，本公开不将其应用限制到本说明书提出的部件的详细结构和布置方式。本公开能够具有其他实施方式，并且能够以多种方式实现并且执行。前述变形形式和修改形式落在本公开的范围内。应可理解的是，本说明书公开和限定的本公开延伸到文中和/或附图中提到或明显的两个或两个以上单独特征的所有可替代组合。所有这些不同的组合构成本公开的多个可替代方面。本说明书所述的实施方式说明了已知用于实现本公开的最佳方式，并且将使本领域技术人员能够利用本公开。

Claims (10)

  1. 一种列车管泄压试验装置，用于列车，其特征在于：包括：
    连接管，所述连接管两端设置有管接头，用于密封连接于所述列车；
    测试管，与所述连接管密封连通；
    截断塞门，设置在所述测试管上。
  2. 如权利要求1所述的列车管泄压试验装置，其特征在于：所述连接管包括第一连接管和第二连接管，所述第一连接管与所述第二连接管之间密封设置三通接头，所述三通接头的第三个端口密封连接所述测试管。
  3. 如权利要求2所述的列出管泄压试验装置，其特征在于：所述第一连接管和所述第二连接管包括多个管段，每个管段之间设置有管接头。
  4. 如权利要求1所述的列车管泄压试验装置，其特征在于：所述管接头采用耐低温、耐腐蚀、防锈蚀的材料制成。
  5. 如权利要求1所述的列车管泄压试验装置，其特征在于：所述连接管采用耐低温、耐腐蚀、防锈蚀的材料制成。
  6. 如权利要求5所述的列车管泄压试验装置，其特征在于：所述连接管是软管。
  7. 如权利要求6所述的列车管泄压试验装置，其特征在于：所述连接管是橡胶软管或者金属软管。
  8. 如权利要求1所述的列车管泄压试验装置，其特征在于：所述测试管是硬管。
  9. 如权利要求8所述的列车管泄压试验装置，其特征在于：所述测试管是无缝不锈钢管或者碳钢管。
  10. 如权利要求1所述的列车管泄压试验装置，其特征在于：所述测试管是橡胶软管或者金属软管。
PCT/CN2022/124452 2021-11-08 2022-10-10 列车管泄压试验装置 WO2023078036A1 (zh)

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