WO2020118996A1 - Air-tightness detection device for pipeline - Google Patents

Air-tightness detection device for pipeline Download PDF

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Publication number
WO2020118996A1
WO2020118996A1 PCT/CN2019/083004 CN2019083004W WO2020118996A1 WO 2020118996 A1 WO2020118996 A1 WO 2020118996A1 CN 2019083004 W CN2019083004 W CN 2019083004W WO 2020118996 A1 WO2020118996 A1 WO 2020118996A1
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Prior art keywords
air
detection device
pipeline
unit
airflow
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PCT/CN2019/083004
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French (fr)
Chinese (zh)
Inventor
陆郭春
万信飞
支海波
黄仕茌
赵德强
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张家港中天精密模塑有限公司
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Publication of WO2020118996A1 publication Critical patent/WO2020118996A1/en

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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
    • G01M3/2807—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 pipes
    • G01M3/2815—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 pipes using pressure measurements

Definitions

  • the invention relates to the field of pipeline inspection, in particular to an air tightness detection device for pipelines.
  • the pipeline refers to the pipeline that transmits the working fluid in the hydraulic system.
  • the airtightness of the pipeline is very important.
  • the pipeline airtightness test is generally completed by water inspection, but the water inspection needs to dry the water on the outer surface of the pipeline, which leads to extremely low production efficiency, and also wastes water resources and causes water pollution.
  • the object of the present invention is to provide an air tightness detection device for pipelines, which has a simple structure, can conveniently and quickly detect the air tightness of pipelines, and has high detection efficiency.
  • an air tightness detection device for a pipeline which includes a device body, an air inlet opened on the device body for communicating with an external air source, An air delivery unit provided on the device body for outputting airflow, an air return unit provided on the device body for recovering airflow, an air pressure sensor provided on the air return unit, and the pipeline Both ends are respectively connected with the gas transmission unit and the gas return unit.
  • the gas delivery unit includes a first connection portion for connecting to the end of the pipeline, and a number of gas delivery holes formed in the first connection portion.
  • the first connecting portion is circular, and the plurality of gas delivery holes are arranged at intervals around the circumferential direction of the first connecting portion.
  • the air return unit includes a second connection part for connecting to the end of the pipeline, and a number of air return holes opened on the second connection part.
  • the second connecting portion is circular, and the plurality of return air holes are arranged at intervals around the circumferential direction of the second connecting portion.
  • the detection device further includes a control valve provided at the gas delivery unit for controlling opening or closing of the gas delivery unit.
  • control valve is a solenoid valve.
  • the detection device further includes an air pressure display unit provided on the outer side of the device body, and the air pressure display unit is electrically connected to the air pressure sensor.
  • the detection device further includes a pressure regulating component provided on the body of the device and used for adjusting the air pressure of the air flow output by the gas transmission unit.
  • the airtightness detection device for pipelines of the present invention detects the output airflow of the pipeline by inputting the airflow into the pipeline
  • the air pressure can be effectively judged whether the pipeline is leaking by comparing the air pressure of the input air flow and the output air flow.
  • the device has a simple structure, can conveniently and quickly detect the air tightness of the pipeline, and has high detection efficiency.
  • Figure 1 is a schematic diagram of the present invention.
  • an airtightness detection device for a pipeline includes a device body 1, an air inlet (not shown) opened on the device body 1 for communicating with an external air source, A gas delivery unit 2 provided on the device body 1 for outputting air flow, a gas return unit 3 provided on the device body 1 for recovering air flow, and an air pressure sensor provided at the gas return unit 3 (not shown in the figure) ), the two ends of the pipeline communicate with the gas transmission unit 2 and the air return unit 3 respectively.
  • the gas transmission unit 2 includes a first connection portion 21 for connecting to the end of the pipeline, and a plurality of gas transmission holes 22 opened on the first connection portion 21, the first connection portion 21 is circular, and a plurality of gas transmission holes 22 are arranged at intervals around the circumferential direction of the first connection portion 21.
  • the air return unit 3 includes a second connection part 31 for connecting to the end of the pipeline, and a plurality of air return holes 32 formed on the second connection part 31.
  • the second connection part 31 is circular, and the plurality of air return holes 32 surround the first
  • the two connecting portions 31 are arranged at intervals in the circumferential direction.
  • the detection device has a simple structure and can quickly and easily The air tightness of the pipeline is detected, and the detection efficiency is high.
  • the detection device further includes a control valve (not shown in the figure) provided at the gas delivery unit 2 to control the gas delivery unit 2 to open or close.
  • the control valve is a solenoid valve.
  • the solenoid valve is a two-position three-way double electric control middle-sealing solenoid valve.
  • the detection device further includes a start button 6, press the start button 6, and blow the air into the pipeline through the solenoid valve for 3s and then stop for 10s.
  • the signal of the output air pressure detected by the air pressure sensor determines the air tightness of the pipeline .
  • the detection device further includes an air pressure display unit 4 provided on the outer side of the device body 1.
  • the air pressure display unit 4 is electrically connected to the air pressure sensor. Through the air pressure display unit 4, the air pressure signal detected by the air pressure sensor can be clearly and intuitively observed.
  • the detection device further includes a pressure regulating assembly 5 provided on the device body 1 for regulating the air pressure of the air flow output by the gas delivery unit 2.
  • the output of the detected air pressure can be adjusted as required by the setting of the pressure regulating assembly 5.
  • the voltage regulating assembly 5 is a voltage regulator.
  • the air pressure sensor will display the real-time air pressure in the pipeline on the air pressure display unit 4, according to the data displayed by the air pressure display unit 4 Can determine whether the pipeline is leaking.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

An air-tightness detection device for a pipeline, comprising: a device body (1); an air inlet disposed at the device body (1) and communicating with an external air source; an airflow output unit (2) disposed at the device body (1) and used to output an airflow; an airflow recovery unit (3) disposed at the device body (1) and used to recover an airflow; and an air pressure sensor disposed at the airflow recovery unit (3). Two ends of the pipeline are connected to the airflow output unit (2) and the airflow recovery unit (3), respectively. An air-tightness detection device for a pipeline inputs an airflow into the pipeline, detects an air pressure of an output airflow from the pipeline, and compares air pressures of the input airflow and the output airflow, thereby effectively determining whether the pipeline is leaking. The device has a simple structure and high detection efficiency, and can quickly and easily examine the air-tightness of the pipeline.

Description

一种用于管路的气密性检测装置Device for detecting air tightness of pipeline 技术领域Technical field
本发明涉及管道检测领域，具体涉及一种用于管路的气密性检测装置。The invention relates to the field of pipeline inspection, in particular to an air tightness detection device for pipelines.
背景技术Background technique
管路是指液压系统中传输工作流体的管道，对于管路而言，由于要传输流体，因此管路的气密性至关重要。目前的管路气密性检测，一般是通过水检来完成，但是水检需要将管路外表面的水晾干，从而导致生产效率极端低下，同时还浪费水资源并造成水污染。The pipeline refers to the pipeline that transmits the working fluid in the hydraulic system. For the pipeline, since the fluid is to be transmitted, the airtightness of the pipeline is very important. At present, the pipeline airtightness test is generally completed by water inspection, but the water inspection needs to dry the water on the outer surface of the pipeline, which leads to extremely low production efficiency, and also wastes water resources and causes water pollution.
发明内容Summary of the invention
本发明的目的是提供一种用于管路的气密性检测装置，该装置结构简单，能够方便快捷的对管路的气密性进行检测，检测效率高。The object of the present invention is to provide an air tightness detection device for pipelines, which has a simple structure, can conveniently and quickly detect the air tightness of pipelines, and has high detection efficiency.
为达到上述目的，本发明采用的技术方案是：一种用于管路的气密性检测装置，其包括装置本体、开设于所述装置本体上的用于连通外部气源的进气口、设于所述装置本体上的用于输出气流的输气单元、设于所述装置本体上的用于回收气流的回气单元、设于所述回气单元处的气压传感器，所述管路两端分别与所述输气单元和所述回气单元相连通。In order to achieve the above object, the technical solution adopted by the present invention is: an air tightness detection device for a pipeline, which includes a device body, an air inlet opened on the device body for communicating with an external air source, An air delivery unit provided on the device body for outputting airflow, an air return unit provided on the device body for recovering airflow, an air pressure sensor provided on the air return unit, and the pipeline Both ends are respectively connected with the gas transmission unit and the gas return unit.
优选地，所述输气单元包括用于与所述管路端部连接的第一连接部、开设于所述第一连接部上的若干输气孔。Preferably, the gas delivery unit includes a first connection portion for connecting to the end of the pipeline, and a number of gas delivery holes formed in the first connection portion.
进一步优选地，所述第一连接部呈圆形，所述若干输气孔绕着所述第一连接部的周向间隔排布。Further preferably, the first connecting portion is circular, and the plurality of gas delivery holes are arranged at intervals around the circumferential direction of the first connecting portion.
优选地，所述回气单元包括用于与所述管路端部连接的第二连接部、开设于所述第二连接部上的若干回气孔。Preferably, the air return unit includes a second connection part for connecting to the end of the pipeline, and a number of air return holes opened on the second connection part.
进一步优选地，所述第二连接部呈圆形，所述若干回气孔绕着所述第二连接部的周向间隔排布。Further preferably, the second connecting portion is circular, and the plurality of return air holes are arranged at intervals around the circumferential direction of the second connecting portion.
优选地，所述检测装置还包括设于所述输气单元处的用于控制所 述输气单元开启或关闭的控制阀。Preferably, the detection device further includes a control valve provided at the gas delivery unit for controlling opening or closing of the gas delivery unit.
进一步优选地，所述控制阀为电磁阀。Further preferably, the control valve is a solenoid valve.
优选地，所述检测装置还包括设于所述装置本体外侧部的气压显示单元，所述气压显示单元与所述气压传感器电相连。Preferably, the detection device further includes an air pressure display unit provided on the outer side of the device body, and the air pressure display unit is electrically connected to the air pressure sensor.
优选地，所述检测装置还包括设于所述装置本体上的用于调节所述输气单元输出气流的气压的调压组件。Preferably, the detection device further includes a pressure regulating component provided on the body of the device and used for adjusting the air pressure of the air flow output by the gas transmission unit.
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：本发明的一种用于管路的气密性检测装置，通过向管路内输入气流，同时检测管路输出气流的气压，通过比较输入气流和输出气流的气压即可有效判断管路是否漏气，该装置结构简单，能够方便快捷的对管路的气密性进行检测，检测效率高。Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: The airtightness detection device for pipelines of the present invention detects the output airflow of the pipeline by inputting the airflow into the pipeline The air pressure can be effectively judged whether the pipeline is leaking by comparing the air pressure of the input air flow and the output air flow. The device has a simple structure, can conveniently and quickly detect the air tightness of the pipeline, and has high detection efficiency.
附图说明BRIEF DESCRIPTION
附图1为本发明的结构示意图。Figure 1 is a schematic diagram of the present invention.
其中：1、装置本体；2、输气单元；21、第一连接部；22、输气孔；3、回气单元；31、第二连接部；32、回气孔；4、气压显示单元；5、调压组件；6、启动按钮。Among them: 1. Device body; 2. Gas delivery unit; 21, first connection part; 22, gas delivery hole; 3. Gas return unit; 31, second connection part; 32, gas return hole; 4. Air pressure display unit; 5. Pressure regulating component; 6. Start button.
具体实施方式detailed description
下面结合附图来对本发明的技术方案作进一步的阐述。The technical solution of the present invention will be further elaborated below with reference to the drawings.
参见图1所示，一种用于管路的气密性检测装置，其包括装置本体1、开设于装置本体1上的用于连通外部气源的进气口(图中未示出)、设于装置本体1上的用于输出气流的输气单元2、设于装置本体1上的用于回收气流的回气单元3、设于回气单元3处的气压传感器(图中未示出)，管路两端分别与输气单元2和回气单元3相连通。这里，输气单元2包括用于与管路端部连接的第一连接部21、开设于第一连接部21上的若干输气孔22，第一连接部21呈圆形，若干输气孔22绕着第一连接部21的周向间隔排布。回气单元3包括用于与管路端部连接的第二连接部31、开设于第二连接部31上的若干回气孔32，第二连接部31呈圆形，若干回气孔32绕着第二连接部31的周向间隔排布。Referring to FIG. 1, an airtightness detection device for a pipeline includes a device body 1, an air inlet (not shown) opened on the device body 1 for communicating with an external air source, A gas delivery unit 2 provided on the device body 1 for outputting air flow, a gas return unit 3 provided on the device body 1 for recovering air flow, and an air pressure sensor provided at the gas return unit 3 (not shown in the figure) ), the two ends of the pipeline communicate with the gas transmission unit 2 and the air return unit 3 respectively. Here, the gas transmission unit 2 includes a first connection portion 21 for connecting to the end of the pipeline, and a plurality of gas transmission holes 22 opened on the first connection portion 21, the first connection portion 21 is circular, and a plurality of gas transmission holes 22 are arranged at intervals around the circumferential direction of the first connection portion 21. The air return unit 3 includes a second connection part 31 for connecting to the end of the pipeline, and a plurality of air return holes 32 formed on the second connection part 31. The second connection part 31 is circular, and the plurality of air return holes 32 surround the first The two connecting portions 31 are arranged at intervals in the circumferential direction.
在这里，通过向管路内输入气流，同时检测管路输出气流的气压，通过比较输入气流和输出气流的气压即可有效判断管路是否漏气，该检测装置结构简单，能够方便快捷的对管路的气密性进行检测，检测效率高。Here, by inputting the airflow into the pipeline and simultaneously detecting the air pressure of the output airflow of the pipeline, it can effectively determine whether the pipeline is leaking by comparing the air pressure of the input airflow and the output airflow. The detection device has a simple structure and can quickly and easily The air tightness of the pipeline is detected, and the detection efficiency is high.
在本实施例中，该检测装置还包括设于输气单元2处的用于控制输气单元2开启或关闭的控制阀(图中未示出)，该控制阀为电磁阀。在这里，该电磁阀为两位三通双电控中封式电磁阀。这里，该检测装置还包括启动按钮6，按下启动按钮6，通过电磁阀向管路内吹气3s后停止，保持10s，由气压传感器检测到的输出气压的信号判断管路的气密性。In this embodiment, the detection device further includes a control valve (not shown in the figure) provided at the gas delivery unit 2 to control the gas delivery unit 2 to open or close. The control valve is a solenoid valve. Here, the solenoid valve is a two-position three-way double electric control middle-sealing solenoid valve. Here, the detection device further includes a start button 6, press the start button 6, and blow the air into the pipeline through the solenoid valve for 3s and then stop for 10s. The signal of the output air pressure detected by the air pressure sensor determines the air tightness of the pipeline .
该检测装置还包括设于装置本体1外侧部的气压显示单元4，气压显示单元4与气压传感器电相连。通过气压显示单元4，可以清楚直观的观察到气压传感器检测到的气压信号。The detection device further includes an air pressure display unit 4 provided on the outer side of the device body 1. The air pressure display unit 4 is electrically connected to the air pressure sensor. Through the air pressure display unit 4, the air pressure signal detected by the air pressure sensor can be clearly and intuitively observed.
检测装置还包括设于装置本体1上的用于调节输气单元2输出气流的气压的调压组件5。通过调压组件5的设置能够根据需要调节输出的检测气压。这里，该调压组件5为调压计。The detection device further includes a pressure regulating assembly 5 provided on the device body 1 for regulating the air pressure of the air flow output by the gas delivery unit 2. The output of the detected air pressure can be adjusted as required by the setting of the pressure regulating assembly 5. Here, the voltage regulating assembly 5 is a voltage regulator.
以下具体阐述下本实施例的工作过程：将管路两端分别与输气单元2和回气单元3连接，调节调压组件5，选择合适的检测气压，The following specifically describes the working process of this embodiment: connect the two ends of the pipeline to the gas transmission unit 2 and the air return unit 3, adjust the pressure regulating assembly 5, and select the appropriate detection air pressure,
随后按下启动按钮6，通过电磁阀向管路内吹气3s后停止，保持10s，此时气压传感器会把实时管路内气压显示在气压显示单元4上，根据气压显示单元4显示的数据可判断管路是否漏气。Then press the start button 6 to blow air into the pipeline through the solenoid valve for 3s and then stop for 10s. At this time, the air pressure sensor will display the real-time air pressure in the pipeline on the air pressure display unit 4, according to the data displayed by the air pressure display unit 4 Can determine whether the pipeline is leaking.
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。The above embodiments are only for explaining the technical concept and features of the present invention, and the purpose thereof is to allow those familiar with the technology to understand the content of the present invention and implement it accordingly, but not to limit the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (9)

  1. 一种用于管路的气密性检测装置，其特征在于：其包括装置本体(1)、开设于所述装置本体(1)上的用于连通外部气源的进气口、设于所述装置本体(1)上的用于输出气流的输气单元(2)、设于所述装置本体(1)上的用于回收气流的回气单元(3)、设于所述回气单元(3)处的气压传感器，所述管路两端分别与所述输气单元(2)和所述回气单元(3)相连通。An airtightness detection device for pipelines, characterized in that it includes a device body (1), an air inlet opened on the device body (1) for communicating with an external air source, and provided on the An air delivery unit (2) for outputting air flow on the device body (1), a return air unit (3) for recovering air flow provided on the device body (1), and the return air unit (3) The air pressure sensor at the two ends of the pipeline communicates with the air delivery unit (2) and the air return unit (3) respectively.
  2. 根据权利要求1所述的一种用于管路的气密性检测装置，其特征在于：所述输气单元(2)包括用于与所述管路端部连接的第一连接部(21)、开设于所述第一连接部(21)上的若干输气孔(22)。The air tightness detection device for pipelines according to claim 1, characterized in that the gas transmission unit (2) includes a first connection portion (21) for connecting to the end of the pipeline ), a number of gas delivery holes (22) opened on the first connection portion (21).
  3. 根据权利要求2所述的一种用于管路的气密性检测装置，其特征在于：所述第一连接部(21)呈圆形，所述若干输气孔(22)绕着所述第一连接部(21)的周向间隔排布。The air-tightness detection device for pipelines according to claim 2, characterized in that: the first connection portion (21) is circular, and the plurality of gas transmission holes (22) surround the The first connecting portions (21) are arranged at intervals in the circumferential direction.
  4. 根据权利要求1所述的一种用于管路的气密性检测装置，其特征在于：所述回气单元(3)包括用于与所述管路端部连接的第二连接部(31)、开设于所述第二连接部(31)上的若干回气孔(32)。The air-tightness detection device for pipelines according to claim 1, characterized in that the air return unit (3) includes a second connection portion (31) for connecting to the end of the pipeline ), a plurality of air return holes (32) opened on the second connecting portion (31).
  5. 根据权利要求4所述的一种用于管路的气密性检测装置，其特征在于：所述第二连接部(31)呈圆形，所述若干回气孔(32)绕着所述第二连接部(31)的周向间隔排布。The air tightness detection device for pipelines according to claim 4, characterized in that: the second connecting portion (31) is circular, and the plurality of return air holes (32) surround the first The two connecting parts (31) are arranged at intervals in the circumferential direction.
  6. 根据权利要求1所述的一种用于管路的气密性检测装置，其特征在于：所述检测装置还包括设于所述输气单元(2)处的用于控制所述输气单元(2)开启或关闭的控制阀。The air tightness detection device for pipeline according to claim 1, characterized in that the detection device further comprises a gas transmission unit (2) for controlling the gas transmission unit (2) Open or closed control valve.
  7. 根据权利要求6所述的一种用于管路的气密性检测装置，其特征在于：所述控制阀为电磁阀。The airtightness detection device for pipelines according to claim 6, wherein the control valve is a solenoid valve.
  8. 根据权利要求1所述的一种用于管路的气密性检测装置，其特征在于：所述检测装置还包括设于所述装置本体(1)外侧部的气压显示单元(4)，所述气压显示单元(4)与所述气压传感器电相连。The air tightness detection device for pipelines according to claim 1, characterized in that the detection device further comprises an air pressure display unit (4) provided on the outer side of the device body (1), so The air pressure display unit (4) is electrically connected to the air pressure sensor.
  9. 根据权利要求1所述的一种用于管路的气密性检测装置，其特征在于：所述检测装置还包括设于所述装置本体(1)上的用于调 节所述输气单元(2)输出气流的气压的调压组件(5)。The airtightness detection device for pipelines according to claim 1, characterized in that the detection device further comprises a gas supply unit (for adjusting the gas delivery unit) provided on the device body (1) 2) A pressure regulating component (5) that outputs the air pressure of the air flow.
PCT/CN2019/083004 2018-12-13 2019-04-17 Air-tightness detection device for pipeline WO2020118996A1 (en)

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