WO2018233433A1 - 一种真空管道密封检测装置 - Google Patents

一种真空管道密封检测装置 Download PDF

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Publication number
WO2018233433A1
WO2018233433A1 PCT/CN2018/087725 CN2018087725W WO2018233433A1 WO 2018233433 A1 WO2018233433 A1 WO 2018233433A1 CN 2018087725 W CN2018087725 W CN 2018087725W WO 2018233433 A1 WO2018233433 A1 WO 2018233433A1
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layer sealing
inner layer
vacuum
annular
pipe body
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PCT/CN2018/087725
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English (en)
French (fr)
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苏彬诚
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苏彬诚
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Publication of WO2018233433A1 publication Critical patent/WO2018233433A1/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
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals

Definitions

  • the invention relates to the technical field of pipelines, and in particular to a vacuum pipeline seal detecting device.
  • the sealing structure is relatively simple, and since the tubes requiring sealing are long, the number of the sealing structures is large, and due to the lack of real-time detecting means for the sealing structure, The seal between the two tubes has a great safety hazard.
  • a vacuum pipe seal detecting device comprises a first pipe body, a second pipe body, an inner layer sealing connecting member and an outer layer sealing connecting member disposed between opposite end faces of the first pipe body and the second pipe body And a pipe seal detecting mechanism for detecting the airtightness of the inner layer sealing connector and the outer layer sealing connector; the inner layer sealing connector and the outer layer sealing connector are disposed in an annular sealing cavity, The pipe seal detecting mechanism is respectively connected to the annular sealing cavity and the connected vacuum pipe.
  • the pipe seal detecting mechanism includes a first detecting channel for obtaining a ratio between a gas pressure value of the annular sealing cavity and an external standard air pressure value, and a first value for obtaining a ratio between the air pressure value of the annular sealing cavity and the vacuum pipe. a second detection channel and a third detection channel for obtaining a ratio between a vacuum tube pressure value and an external standard pressure value.
  • the first detection channel, the second detection channel, and the third detection channel are all electrically connected to an external electronic control device.
  • the first detection channel, the second detection channel, and the third detection channel are both provided with a gas pressure sensor and a vent valve.
  • first pipe body and the second pipe body are respectively provided with an inner layer annular positioning ring and an outer ring annular positioning ring; the two ends of the inner layer sealing connector respectively correspond to the corresponding inner layer
  • the annular locating ring is fastened; the two ends of the outer sealing connector are respectively fastened with the corresponding outer annular locating ring.
  • both ends of the outer layer sealing connector are fastened to the outer ring positioning ring by a clamp; the two ends of the inner layer sealing connector are fastened by the screw to the inner layer annular positioning ring.
  • the inner annular positioning ring is uniformly distributed with a plurality of mounting holes in a circumferential direction, and one end of the mounting hole is embedded with a nut matched with the screw.
  • the inner layer sealing connector and the outer layer sealing connector have the same structure, and the inner layer sealing connector and the outer layer sealing connector are both provided with a first curved wall and a second radial recessed along the circumferential surface.
  • the annular positioning ring includes a fixing portion fastened with the positioning wall, and the second curved shape
  • the sealing portion of the concave surface of the wall is closely attached, and the sealing portion is annularly protruded from the circumferential surface of the annular positioning ring.
  • the present invention provides a vacuum pipe seal detecting device including a first pipe body, a second pipe body, and a space disposed between opposite end faces of the first pipe body and the second pipe body a layer sealing connector and an outer layer sealing connector, and a pipe seal detecting mechanism for detecting airtightness of the inner layer sealing connector and the outer layer sealing connector; the inner layer sealing connector and the outer layer sealing connector
  • An annular sealing cavity is disposed between the annular sealing cavity and the connected vacuum pipe.
  • Figure 1 is a schematic cross-sectional view showing the axial direction of a sealing connector of the present invention.
  • FIG. 2 is a schematic view showing the structure of the annular positioning ring on the opposite ends of the first connecting body and the second connecting body of the present invention.
  • Figure 3 is a schematic view showing the structure of a vacuum pipe provided with a sealing joint of the present invention.
  • Figure 4 is a partial enlarged view of a portion A in Figure 3.
  • Figure 5 is a schematic view showing the structure of the BB section of Figure 4.
  • the present embodiment provides a vacuum pipe seal detecting device, including a first pipe body 1, a second pipe body 2, and a first pipe body 1 and a second pipe body 2.
  • the inner layer sealing connector 34 and the outer layer sealing connector 35 between the opposite end faces, and the pipe seal detecting mechanism 80 for detecting the inner layer sealing connector 34 and the outer layer sealing connector 35 are airtight;
  • the inner layer sealing connector 34 and the outer layer sealing connector 35 are disposed in an annular sealing cavity 36.
  • the pipe sealing detecting mechanism 80 is respectively connected to the annular sealing cavity 36 and the connected vacuum pipe.
  • the pipe seal detecting mechanism 80 includes a first detecting channel for acquiring a ratio between a gas pressure value of the annular sealing cavity 36 and an external standard air pressure value, and is used for acquiring the pressure of the annular sealing cavity 36.
  • the detection channels are all electrically connected to an external electronic control device, and the first detection channel, the second detection channel, and the third detection channel are both provided with an air pressure sensor and a vent valve.
  • the pipe seal detecting mechanism designed by the structure can timely and effectively obtain the air pressure change in the annular sealing cavity 36 and the connected vacuum pipe through the setting of each detecting channel, thereby determining the inner layer sealing connector 34 or the outer layer sealing connection.
  • the sealing of piece 35 is convenient for timely and effective maintenance.
  • the vent valve on the corresponding detection channel is adjusted, and then the air pressure ratio of each detection channel is adjusted, thereby balancing the vacuum in the vacuum pipe.
  • the opposite end faces of the first pipe body 1 and the second pipe body 2 are respectively provided with an inner layer annular positioning ring 43 and an outer ring positioning ring 44; the inner layer sealing connector 34 The two ends are respectively fastened with the corresponding inner annular ring 43; the two ends of the outer sealing connector 35 are respectively fastened with the corresponding outer annular ring 44, and the outer layer is sealed.
  • Both ends of the piece 35 are fastened to the outer annular locating ring by a ferrule 5; both ends of the inner layer sealing connector 34 are fastened by the screw 6 to the inner layer annular locating ring 43, the inner layer
  • the annular locating ring 43 is uniformly distributed with a plurality of mounting holes in a circumferential direction, and one end of the mounting hole is embedded with a nut 7 that cooperates with the screw 6, and the inner layer sealing connector 34 and the outer layer sealing connector 35 have the same structure.
  • the inner layer sealing connector 34 and the outer layer sealing connector 35 are each provided with a first arcuate wall 31 and a second arcuate wall 32 that are radially recessed along the circumferential surface, and are horizontally extended to the second arcuate wall 32.
  • the annular locating ring 40 includes a fixing portion 41 fastened to the positioning wall 33, and a sealing portion 42 closely fitting with the concave surface of the second curved wall 32.
  • the sealing portion 42 is annularly protruded from The circumferential surface of the annular positioning ring 40.
  • the air pressure value of the concave surface of the first curved wall in the connected vacuum pipe is smaller than the air pressure value of the outer concave surface of the first curved wall, so that the concave surface of the second curved wall can be tightly close to the sealing portion.
  • Fitting, thereby providing a good sealing effect in addition, due to the arrangement of the inner layer sealing connector 34 and the outer layer sealing connector 35, and the outer layer sealing connector 35 and the outer ring positioning ring 44 pass through the band 5 is fixed to facilitate installation and maintenance on the outside of the vacuum pipe; the inner layer sealing connector 34 and the inner layer annular positioning ring 43 are fixed by bolts and nuts, thereby facilitating sealing of the inner layer from the vacuum pipe cavity
  • the connector 34 is installed and repaired. Designed in this way, not only can the airtightness after the connection between adjacent vacuum pipes be effectively improved, but also the inner layer sealing connector 34 and the outer layer sealing connector 35 can be easily installed and repaired.

Abstract

一种真空管道密封检测装置，包括第一管体（1）、第二管体（2）、设置于第一管体（1）和第二管体（2）的相对两端面之间的内层密封连接件（34）和外层密封连接件（35）、以及用于检测内层密封连接件（34）和外层密封连接件（35）气密性的管道密封检测机构（80）；内层密封连接件（34）和外层密封连接件（35）之间呈环形密封腔体（36）设置，管道密封检测机构（80）分别与环形密封腔体（36）及连接后的真空管道贯通连接。依此结构设计，管道密封检测机构（80）能够及时获取检测数据，有效监控相邻管体之间的密封状况，同时，还能够方便地在不破坏真空管道内的真空度的情况下将出现问题的内层密封连接件（34）或外层密封连接件（35）单独更换。

Description

一种真空管道密封检测装置 技术领域
本发明涉及管道技术领域，尤其涉及一种真空管道密封检测装置。
背景技术
现有技术下两相对运动的管体在进行密封连接时，密封结构较为简单，且由于需要密封的管道较长，密封结构设置的数量较多，由于缺少对密封结构的实时检测装置，因而使得两管体之间的密封存在极大的安全隐患。
发明内容
本发明的目的在于提供一种能够及时对相邻管体进行密封检测的真空管道密封检测装置。
为达此目的，本发明采用以下技术方案：
一种真空管道密封检测装置，包括第一管体、第二管体、设置于所述第一管体和第二管体的相对两端面之间的内层密封连接件和外层密封连接件、以及用于检测所述内层密封连接件和外层密封连接件气密性的管道密封检测机构；所述内层密封连接件和外层密封连接件之间呈环形密封腔体设置，所述管道密封检测机构分别与所述环形密封腔体及连接后的真空管道贯通连接。
其中，所述管道密封检测机构包括用于获取环形密封腔体的气压值与外部标准气压值之间比值的第一检测通道、用于获取环形密封腔体气压值与真空管道之间比值的第二检测通道、以及用于获取真空管道气压值与外部标准气压值之间比值的第三检测通道。
其中，所述第一检测通道、第二检测通道、以及第三检测通道均与外部电控装置电连接。
其中，所述第一检测通道、第二检测通道、以及第三检测通道均设置有气 压传感器和通气阀。
其中，所述第一管体和第二管体的相对两端面均设置有内层环形定位圈和外层环形定位圈；所述内层密封连接件的两端分别与对应的所述内层环形定位圈紧固；所述外层密封连接件的两端分别与对应的所述外层环形定位圈紧固。
其中，所述外层密封连接件的两端通过扎箍与所述外层环形定位圈紧固；所述内层密封连接件的两端通过螺杆与所述内层环形定位圈紧固。
其中，所述内层环形定位圈周向均布有多个安装孔，所述安装孔的一端埋设有所述螺杆相配合的螺母。
其中，所述内层密封连接件和外层密封连接件结构相同，所述内层密封连接件和外层密封连接件均设置有沿圆周面径向凹设的第一弧形壁和第二弧形壁，以及水平外延于所述第二弧形壁外端的定位壁，所述第二弧形壁平滑过渡设置于所述第一弧形壁的两端，且所述第一弧形壁与所述第二弧形壁凹设方向相反设置。
其中，所述第一管体和第二管体的相对两端面均凸设有环形定位圈，所述环形定位圈包括与所述定位壁紧固的固定部，以及与所述第二弧形壁的凹面紧密贴合的密封部，所述密封部环状凸设于所述环形定位圈的周面。
本发明的有益效果：本发明提供了一种真空管道密封检测装置，包括第一管体、第二管体、设置于所述第一管体和第二管体的相对两端面之间的内层密封连接件和外层密封连接件、以及用于检测所述内层密封连接件和外层密封连接件气密性的管道密封检测机构；所述内层密封连接件和外层密封连接件之间呈环形密封腔体设置，所述管道密封检测机构分别与所述环形密封腔体及连接后的真空管道贯通连接。依次结构设计，能够与环形密封腔体及连接后的真空管道贯通连接的管道密封检测机构的设置，及时获取检测数据，从而有效监控 相邻管体之间的密封状况，同时，还能够方便的在不破坏真空管道内的真空度的情况下将出现问题的内层密封连接件或外层密封连接件单独更换。
附图说明
图1是本发明一种密封连接件的轴向剖面结构示意图。
图2是本发明第一连接体和第二连接体相对两端面环形定位圈的结构示意图。
图3是本发明设置有密封连接件的真空管道的结构示意图。
图4是图3中A处的局部放大图。
图5是图4中BB截面的结构示意图。
具体实施方式
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。
结合图1至图5所示，本实施例提供了一种真空管道密封检测装置，包括第一管体1、第二管体2、设置于所述第一管体1和第二管体2的相对两端面之间的内层密封连接件34和外层密封连接件35、以及用于检测所述内层密封连接件34和外层密封连接件35气密性的管道密封检测机构80；所述内层密封连接件34和外层密封连接件35之间呈环形密封腔体36设置，所述管道密封检测机构80分别与所述环形密封腔体36及连接后的真空管道贯通连接。
具体的，本实施例中，所述管道密封检测机构80包括用于获取环形密封腔体36的气压值与外部标准气压值之间比值的第一检测通道、用于获取环形密封腔体36气压值与真空管道之间比值的第二检测通道、以及用于获取真空管道气压值与外部标准气压值之间比值的第三检测通道，所述第一检测通道、第二检测通道、以及第三检测通道均与外部电控装置电连接，所述第一检测通道、第二检测通道、以及第三检测通道均设置有气压传感器和通气阀。
以此结构设计的管道密封检测机构，能够通过各检测通道的设置，及时有效的获取环形密封腔体36及连接后的真空管道内的气压变化，进而判定内层密封连接件34或外层密封连接件35的密封性，以方便及时有效的进行维护。采用上述方式设计，对各通道采集到的数据经过外部电控装置的分析判定后，通过对对应检测通道上的通气阀进行调整，继而调整各检测通道的气压比值，以此平衡真空管道内的真空度，同时，还能够根据获取到的数据，远程判定漏气位置，并在不影响真空管道内的真空度的情况下将出现问题的内层密封连接件或外层密封连接件单独更换。
进一步的，本实施例中，所述第一管体1和第二管体2的相对两端面均设置有内层环形定位圈43和外层环形定位圈44；所述内层密封连接件34的两端分别与对应的所述内层环形定位圈43紧固；所述外层密封连接件35的两端分别与对应的所述外层环形定位圈44紧固，所述外层密封连接件35的两端通过扎箍5与所述外层环形定位圈紧固；所述内层密封连接件34的两端通过螺杆6与所述内层环形定位圈43紧固，所述内层环形定位圈43周向均布有多个安装孔，所述安装孔的一端埋设有所述螺杆6相配合的螺母7，所述内层密封连接件34和外层密封连接件35结构相同，所述内层密封连接件34和外层密封连接件35均设置有沿圆周面径向凹设的第一弧形壁31和第二弧形壁32，以及水平外延于所述第二弧形壁32外端的定位壁33，所述第二弧形壁32平滑过渡设置于所述第一弧形壁31的两端，且所述第一弧形壁31与所述第二弧形壁32凹设方向相反设置，所述第一管体1和第二管体2的相对两端面均凸设有环形定位圈40，所述环形定位圈40包括与所述定位壁33紧固的固定部41，以及与所述第二弧形壁32的凹面紧密贴合的密封部42，所述密封部42环状凸设于所述环形定位圈40的周面。
本实施例中，连接后的真空管道中第一弧形壁的内凹面的气压值小于第一弧形壁的外凹面的气压值，以此使得第二弧形壁的内凹面能够与密封部紧密贴合，进而起到很好的密封作用，此外，由于内层密封连接件34和外层密封连接件35的设置，且外层密封连接件35与所述外层环形定位圈44通过扎箍5进行固定，以此方便在真空管道外侧进行安装和维修；内层密封连接件34与所述内层环形定位圈43通过螺栓和螺母进行固定，以此方便从真空管道腔体内对内层密封连接件34进行安装和维修。以此方式设计，不仅能够有效提升相邻真空管道之间连接后的气密性，而且还能够方便对内层密封连接件34和外层密封连接件35进行安装和维修。
以上结合具体实施例描述了本发明的技术原理。这些描述只是为了解释本发明的原理，而不能以任何方式解释为对本发明保护范围的限制。基于此处的解释，本领域的技术人员不需要付出创造性的劳动即可联想到本发明的其它具体实施方式，这些方式都将落入本发明的保护范围之内。

Claims (9)

  1. 一种真空管道密封检测装置，其特征在于：包括第一管体、第二管体、设置于所述第一管体和第二管体的相对两端面之间的内层密封连接件和外层密封连接件、以及用于检测所述内层密封连接件和外层密封连接件气密性的管道密封检测机构；所述内层密封连接件和外层密封连接件之间呈环形密封腔体设置，所述管道密封检测机构分别与所述环形密封腔体及连接后的真空管道贯通连接。
  2. 根据权利要求1所述的一种真空管道密封检测装置，其特征在于：所述管道密封检测机构包括用于获取环形密封腔体的气压值与外部标准气压值之间比值的第一检测通道、用于获取环形密封腔体气压值与真空管道之间比值的第二检测通道、以及用于获取真空管道气压值与外部标准气压值之间比值的第三检测通道。
  3. 根据权利要求2所述的一种真空管道密封检测装置，其特征在于：所述第一检测通道、第二检测通道、以及第三检测通道均与外部电控装置电连接。
  4. 根据权利要求3所述的一种真空管道密封检测装置，其特征在于：所述第一检测通道、第二检测通道、以及第三检测通道均设置有气压传感器和通气阀。
  5. 根据权利要求1所述的一种真空管道密封检测装置，其特征在于：所述第一管体和第二管体的相对两端面均设置有内层环形定位圈和外层环形定位圈；所述内层密封连接件的两端分别与对应的所述内层环形定位圈紧固；所述外层密封连接件的两端分别与对应的所述外层环形定位圈紧固。
  6. 根据权利要求5所述的一种真空管道密封检测装置，其特征在于：所述外层密封连接件的两端通过扎箍与所述外层环形定位圈紧固；所述内层密封连接件的两端通过螺杆与所述内层环形定位圈紧固。
  7. 根据权利要求6所述的一种真空管道密封检测装置，其特征在于：所述内层环形定位圈周向均布有多个安装孔，所述安装孔的一端埋设有所述螺杆相配合的螺母。
  8. 根据权利要求1所述的一种真空管道密封检测装置，其特征在于：所述内层密封连接件和外层密封连接件结构相同，所述内层密封连接件和外层密封连接件均设置有沿圆周面径向凹设的第一弧形壁和第二弧形壁，以及水平外延于所述第二弧形壁外端的定位壁，所述第二弧形壁平滑过渡设置于所述第一弧形壁的两端，且所述第一弧形壁与所述第二弧形壁凹设方向相反设置。
  9. 根据权利要求8所述的一种真空管道密封检测装置，其特征在于：所述第一管体和第二管体的相对两端面均凸设有环形定位圈，所述环形定位圈包括与所述定位壁紧固的固定部，以及与所述第二弧形壁的凹面紧密贴合的密封部，所述密封部环状凸设于所述环形定位圈的周面。
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