WO2020215540A1 - 一种静密封泄漏检测装置 - Google Patents

一种静密封泄漏检测装置 Download PDF

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Publication number
WO2020215540A1
WO2020215540A1 PCT/CN2019/101728 CN2019101728W WO2020215540A1 WO 2020215540 A1 WO2020215540 A1 WO 2020215540A1 CN 2019101728 W CN2019101728 W CN 2019101728W WO 2020215540 A1 WO2020215540 A1 WO 2020215540A1
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Prior art keywords
metal strip
positive
negative
box body
detection device
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PCT/CN2019/101728
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English (en)
French (fr)
Inventor
郭飞
温天政
黄毅杰
项冲
贾晓红
王玉明
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清华大学
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Publication of WO2020215540A1 publication Critical patent/WO2020215540A1/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
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means

Definitions

  • the invention belongs to the technical field of static seal leakage detection, and particularly relates to a static seal leakage detection device, which is suitable for potential leakage risk assessment and leakage detection of a sealing strip under a conductive liquid medium.
  • Static seal refers to a type of seal in which the sealing interface does not slide relatively, and the joint surface is relatively static. Sealing parts are usually installed between the sealing end faces. The sealing parts are soft in texture, have good resilience and followability, and can fill the tiny gaps on the sealed end faces to achieve the sealing effect. However, due to the influence of assembly errors, material mechanical properties, external working conditions and other factors, the sealing system may leak the sealing medium. Leakage affects the normal operation of machinery and equipment. Detecting the sealing performance and leakage of seals in advance, assessing the risk of seal leakage, can effectively avoid mechanical equipment failures, economic losses, and casualties.
  • leak detection methods There are many leak detection methods. For gas media, atmospheric pressure detection is generally used. Gas leakage causes the pressure in the sealed cavity to decrease. A pressure gauge is installed to detect the pressure change in the sealed cavity. For liquid media, leak detection can be achieved by observing liquid leakage and connecting external collection devices. As for the air pressure detection method, in addition to the leakage of the sealing interface, there may be gas leakage at the gas inlet, the pressure gauge interface, etc., which reduces the pressure indication and leads to inaccurate detection. For liquid leakage detection, the viscosity of the liquid itself is higher than that of gas, especially for static seals, the leakage is small, the leaked liquid is not easy to observe directly, and it is difficult to collect the leaked liquid. This brings certain difficulties to liquid medium leakage detection.
  • the purpose of the present invention is to provide a static seal leakage detection device, which can detect the static seal leakage and accurately locate it.
  • a static seal leakage detection device The sealing strip is arranged between the upper cover 1 and the box body 7, and is characterized in that a sensor group 8 composed of several sensors is arranged on the upper end surface of the box body 7 in the sealing strip contact area.
  • a sensor includes a positive plate and a negative plate separated by an insulating thin plate. Each positive plate is connected to the positive electrode of the external power supply, and each negative plate is connected to the negative electrode of the external power supply. Under normal no leakage state, the entire circuit is open. When leakage occurs , The conductive liquid medium is covered above the insulating sheet, and the positive plate and the negative plate are connected.
  • a negative electrode metal strip 10 and a positive electrode metal strip 11 are arranged on the upper edge of the box body 7. Each positive electrode plate is connected to the positive electrode of the external power supply through the positive electrode metal strip 11, and each negative electrode plate is connected to the negative electrode of the external power supply through the negative electrode metal strip 10.
  • a light-emitting diode 6 is connected between each positive plate and the positive metal strip 11, or between each negative plate and the negative metal strip 10, and between the positive metal strip 11 and the positive electrode of the external power supply, or the negative metal strip 10
  • An ammeter is connected to the negative pole of the external power supply.
  • the cross section of the box body 7 is square, and the sensors are arranged on the three boundaries of the upper end surface of the box body 7.
  • the positive electrode metal strip 11 and the negative electrode metal strip 10 are also arranged on the three boundaries.
  • the negative electrode metal strip 10 and the positive electrode The metal bars 11 are located at different heights.
  • the three boundaries of the box body 7 are provided with a negative metal strip card slot 24 and a positive metal strip card slot 15, each of which is provided with three metal strip fixing positions 12, and the sealing strip contact area is distributed on the three borders.
  • Set the sensor slot 13, and the length of the adjacent sensor slot 13 decreases linearly, so that the measurement position is distributed in the contact area of the sealing strip.
  • the contact area of the sealing strip of the sensorless slot 13 is provided with an anti-overload protrusion 14. Symmetrical distribution, used to locate the sealing strip to prevent reverse installation.
  • Each group of the sensor slot 13 is composed of groove one and groove two, groove one and groove two have the same length, and are used to place the positive electrode plate and the negative electrode plate, respectively.
  • the interval is 0.5mm
  • the box body 7 is provided with a right-angled U-shaped clamp 5 along the outer side, which is clamped on the three boundaries, and the box body 7 is provided with a horizontal slide along the three boundary directions along the outer side.
  • the lower part is provided with a groove 22 that matches the slide rail 17, and the positive metal strip 11 is clamped in the groove 22
  • the middle part of the holder 5 is hollowed out, and the light-emitting diodes 6 are located in the hollowed out position to facilitate the observation of light emission.
  • the four corners of the upper cover 1 are provided with through holes 19, the periphery of the through hole 19 is provided with a groove for placing the gasket 2, a limit block 4 is provided above the sealing strip, and the four corners of the box body 7 are provided with threaded holes 21, bolts 3 Pass through the through hole 19, the gasket 2, the stop block 4 and the threaded hole 21, and connect with the box body 7.
  • the upper cover 1, the box body 7, the holder 5, and the stop block 4 are all insulating materials.
  • the contact area of the sealing strip is lengthened, and the four corners of the contact area are provided with two overload prevention protrusions 20.
  • the second overload prevention protrusion 20 contacts the surface of the box body 7 to prevent the sensor from being directly carried.
  • the device detects the leakage of the sealed interface, which can avoid the influence of leakage at other locations.
  • This device can detect the infiltration of liquid medium at different positions on the sealing contact surface.
  • the device can measure liquid leakage.
  • the sensor can detect the presence of liquid medium in the sealing area, which can assess potential leakage risk.
  • the electrical signal can more sensitively detect the presence of the liquid medium at the contact position of the sealing strip.
  • Fig. 1 is a schematic diagram (a perspective view) of the structure of the present invention.
  • Figure 2 is a schematic diagram (longitudinal cross-sectional view) of the present invention.
  • Figure 3 is a longitudinal sectional view of the box of the present invention.
  • Figure 4 is a top view of the box of the present invention.
  • Fig. 5 is a schematic diagram (a perspective view) of the structure of the holder of the present invention.
  • Figure 6 is a bottom view of the upper cover of the present invention.
  • Figure 7 is a side view of the upper cover of the present invention.
  • Figure 8 is a perspective view of the upper cover of the present invention.
  • a static seal leakage detection device of the present invention includes an upper cover 1 and a box body 7.
  • the box body 7 has a square cross section and a sealing strip is arranged between the upper cover 1 and the box body 7.
  • a sensor group 8 composed of several sensors is arranged on the upper end surface of the box 7 in the sealing strip contact area.
  • Each sensor includes a positive plate and a negative plate separated by an insulating sheet. The thinner the insulating sheet, the higher the sensitivity of the sensor. .
  • each positive plate is connected to the positive pole of the external power supply, and each negative plate is connected to the negative pole of the external power supply. Under normal no leakage, the entire circuit is open. When leakage occurs, the conductive liquid medium covers the insulating sheet, the positive plate and the negative plate. Conduction.
  • each positive plate is connected to the positive electrode of the external power supply through the positive metal strip 11, and each negative plate is connected to the negative electrode of the external power supply through the negative metal strip 10, wherein each positive plate and the positive metal strip 11, or each negative plate and the negative electrode
  • a light-emitting diode 6 is connected between the metal strips 10, and an ammeter is connected between the positive metal strip 11 and the positive pole of the external power supply, or between the negative metal strip 10 and the negative pole of the external power supply.
  • the senor is used to detect leakage
  • the positive/negative metal strip is responsible for transmitting the electrical signal obtained by the sensor
  • the ammeter is used to indicate the current change on the bus line
  • the light-emitting diode indicates the location of the leakage.
  • the box body 7 is a carrier of the sensor, the sealing strip, the holder, and the metal strip, and the box body 7 is provided with a liquid inlet 9.
  • a sealing strip placement slot 18 with a width of 20 mm and a depth of 6 mm is provided on the upper end of the box body 7 for positioning and placing the sealing strip.
  • the upper end surface of the box body 7 is provided with threaded holes 21 at four corners for mating connection with the upper cover 1.
  • the three boundaries of the box body 7 are provided with a negative metal strip card slot 24 and a positive metal strip card slot 15, and a horizontal slide rail 17 is provided on the outer edge of the three borders.
  • the slide rail 17 is 40mm from the upper boundary, and each side protrudes 20mm outward.
  • the box 7 is provided with a right-angled U-shaped holder 5 along the outside, which is clamped on the three boundaries, and the slide rail 17 is used to cooperate with the holder 5.
  • the negative metal strip card slot 24 is parallel to the positive metal strip card slot 15, the positive metal strip card slot 15 is located above the slide rail 17, and each boundary is provided with three 8mm*2mm metal strip fixing positions 12, and the negative metal strip card slot 24
  • the negative metal strip 10 is installed in the metal strip fixing position 12 of the metal strip
  • the positive metal strip 11 is installed in the metal strip fixing position 12 of the positive metal strip card slot 15.
  • each sensor slot 13 is composed of groove one and groove two.
  • the length of groove one and groove two are equal, and they are used to place the positive plate and negative plate of a sensor respectively.
  • the interval between groove one and groove two is 0.5 mm.
  • a light-emitting diode mounting groove 16 for mounting light-emitting diodes.
  • the contact area of the sealing strip of the sensorless card groove 13 is provided with an overload prevention protrusion 14 with a radius of 4mm and a height of 0.5mm. Symmetrical distribution, used to locate the sealing strip, prevent reverse installation, and cooperate with the upper cover 1 to prevent damage to the sensor when the load is too large.
  • the holder 5 is connected to the box body 7 through the groove 22 and the bolt 23, and is used to fix the sensor group 8, the metal bar and the circuit, and prevent external contaminants from entering the sensor and the box body.
  • the upper part is matched with the upper surface of the box body 7, and the negative metal strip 10 is sandwiched therebetween.
  • the lower part is provided with a groove 22 that is matched with the slide rail 17.
  • the positive metal strip 11 is sandwiched between the groove 22 and the slide rail 17.
  • the middle part of the holder 5 is hollowed out, and each light-emitting diode 6 is located at the hollowed out position to facilitate the observation of the light emission.
  • the terminals of the positive and negative plates are located on the holder 5 and are used to connect in series with the ammeter and the external power supply.
  • the upper cover 1 is a cavity structure used to form a complete sealed cavity with the box 7 and fix the sealing strip, and cooperate with the box 7 to apply a load to the sealing strip.
  • the four corners are provided with through holes 19, the periphery of the through hole 19 is provided with a groove for placing the gasket 2, and a limit block 4 is arranged above the sealing strip.
  • the bolt 3 passes through the through hole 19, the gasket 2, the limit block 4 and the thread
  • the hole 21 is connected with the box body 7, and the limit block 4 is used for a given compression amount.
  • the sealing strip contact area is lengthened to facilitate observation of the loading and leakage of the sealing strip, and to prevent the lower surface of the upper cover 1 from contacting the holder 5 or the upper part of the box body 7.
  • the four corners of the contact area are provided with two anti-overload protrusions 20 with a radius of 4mm and a height of 0.5mm, which are matched with the overload prevention protrusion 14 on the box body.
  • the second overload prevention protrusion 20 contacts the surface of the box body 7.
  • the sealing contact area on the upper cover 1 contacts the overload prevention protrusion 20, and the action stops to prevent excessive load and damage to the sensor and other structures of the box.
  • the upper cover 1, the box 7, the holder 5, and the limit block 4 are made of insulating materials.
  • the working principle of the leakage detection device of the present invention is as follows: the positive and negative electrodes of the external power supply are respectively connected with the positive and negative metal strips, and an ammeter is connected in series on the positive line.
  • the sensors are connected in parallel, and a light-emitting diode is installed on the positive circuit of each sensor.
  • the positive and negative plates are separated by a thin insulating material. In a normal state without leakage, the entire circuit is in an open state, and the ammeter has no indication.
  • the sealing device leaks, when the conductive liquid flows over the surface of the insulating material, the positive and negative plates are turned on, and a current is formed under the action of the external voltage.
  • the light-emitting diode works, and the ammeter produces an indicator to characterize the leakage of the conductive liquid.
  • 30 sets of sensors are installed at different positions in the contact area of the sealing strip, which can measure the leakage of conductive liquid at different penetration depths. Of course, if the entire circuit is conductive, the conductive liquid will leak out of the box.
  • the sealing strip test samples used are prepared according to the size and structural shape of the sealing strip slot of the box body and the upper cover.
  • the size is slightly smaller than the card slot, and the position of the limit hole is consistent with the upper cover anti-overload protrusion and the box body anti-overload protrusion.
  • the thickness of the insulating sheet between the positive and negative plates can be appropriately reduced, and the voltage between the two plates can be increased.

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  • General Physics & Mathematics (AREA)
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Abstract

一种静密封泄漏检测装置，通过电信号来表征密封条的泄漏情况，密封条设置于上盖(1)与箱体(7)之间，在箱体(7)上端面上位于密封条接触区域设置有由若干传感器组成的传感器组(8)，每个传感器包括由绝缘薄板隔开的正极板和负极板，其中，各正极板连接外接电源的正极，各负极板连接外接电源的负极，正常无泄漏状态下整个电路呈断路状态，当泄漏发生时，导电液体介质覆盖到绝缘薄板上方，正极板与负极板导通。静密封泄漏检测装置检测灵敏、操作简单。

Description

一种静密封泄漏检测装置 技术领域
本发明属于静密封泄漏检测技术领域，特别涉及一种静密封泄漏检测装置，适用于导电液体介质下密封条潜在泄漏风险评估及泄漏检测。
背景技术
静密封指密封界面没有相对滑动，接合面相对静止的一类密封。密封端面之间通常装有密封件，密封件质地较软、具有良好的回弹性、追随性，能够填补密封端面的微小间隙，达到密封的效果。但由于装配误差、材料力学性能、外界工况等因素影响，密封***会发生密封介质泄漏。泄漏影响着机械设备的正常工作运转，提前检测密封件的密封性能、泄漏情况，评估密封件泄漏风险，能够有效的避免机械设备故障、经济损失、人员伤亡。
泄漏检测的方法很多，对于气体介质一般采用气压检测，气体泄漏导致密封腔体内压力减小，通过加装压力表来检测密封腔体内压力变化。液体介质可以观察液体泄漏情况、外接收集装置等手段实现泄漏检测。针对气压检测方法而言，除了密封界面泄漏，气体进口、压力表接口处等都可能有气体泄漏，使得压力表示数下降，导致检测不准确。针对液体泄漏检测，本身液体与气体相比粘度大，特别针对静密封而言泄漏量小，泄漏的液体不易直接观测，难以收集泄漏液。这为液体介质泄漏检测带来了一定困难。
发明内容
为了克服上述现有技术的缺点，本发明的目的在于提供一种静密封泄漏检测装置，能检测静密封泄漏情况并精确定位。
为了实现上述目的，本发明采用的技术方案是：
一种静密封泄漏检测装置，密封条设置于上盖1与箱体7之间，其特征在于，在箱体7上端面上位于密封条接触区域设置有由若干传感器组成的传感器 组8，每个传感器包括由绝缘薄板隔开的正极板和负极板，其中，各正极板连接外接电源的正极，各负极板连接外接电源的负极，正常无泄漏状态下整个电路呈断路状态，当泄漏发生时，导电液体介质覆盖到绝缘薄板上方，正极板与负极板导通。
所述箱体7上沿设置有负极金属条10和正极金属条11，其中各正极板通过正极金属条11接外接电源的正极，各负极板通过负极金属条10接外接电源的负极，其中每个正极板与正极金属条11之间，或者每个负极板与负极金属条10之间，均连接一个发光二极管6，所述正极金属条11与外接电源的正极之间，或者负极金属条10与外接电源的负极之间，连接有电流表。
所述箱体7截面为方形，各传感器设置在箱体7上端面的三个边界上，所述正极金属条11与负极金属条10也设置在该三个边界上，负极金属条10和正极金属条11位于不同高度。
所述箱体7的三条边界上设置有负极金属条卡槽24和正极金属条卡槽15，每条边界上设有3个金属条固定位12，密封条接触区域内三条边界上分布有多组传感器卡槽13，相邻传感器卡槽13的长度依次线性递减，使得测量位置分布于整个密封条接触区域，无传感器卡槽13的密封条接触区域内设置有防过载突起一14，呈不对称分布，用于定位密封条，防止反装。
每组所述传感器卡槽13由沟槽一和沟槽二组成，沟槽一与沟槽二长度相等，分别用于放置所述正极板和所述负极板，沟槽一与沟槽二之间间隔0.5mm，
所述箱体7上沿外侧设置有直角U形的夹持器5，夹持在所述的三个边界上，其中箱体7上沿外侧设置有沿所述三个边界方向的水平的滑轨17，其中夹持器5的上部与箱体7的上表面配合，之间夹有负极金属条10，下部设置有与滑轨17配合的凹槽22，正极金属条11夹在凹槽22与滑轨17之间，夹持器5的中部镂空，各发光二极管6位于镂空处，以便于观察发光情况。
所述上盖1的四角设置有通孔19，通孔19***设有放置垫片2的凹槽，在密封条上方设置有限位块4，箱体7上端面四角设置有螺纹孔21，螺栓3穿过 通孔19、垫片2、限位块4和螺纹孔21，与箱体7连接，所述上盖1、箱体7、夹持器5、限位块4均为绝缘材料。
所述密封条接触区域进行加长处理，且接触区域的四个边角处设有防过载突起二20，当过载发生时，防过载突起二20与箱体7表面接触，避免传感器直接承载。
与现有技术相比，本发明的有益效果是：
本装置检测的是密封界面的泄漏情况，很好的避免了其他位置泄漏的影响。
本装置可以检测密封接触面不同位置的液体介质渗入的情况，该装置可以测量液体泄漏情况，在密封条无泄漏的情况下，传感器可以检测所在密封区域液体介质的存在，即可以评估潜在的泄漏风险。
通过更换限位块，可以加载不同载荷对密封条进行泄漏测试。
电信号可以较灵敏检测到液体介质在密封条接触位置的存在。
附图说明
图1是本发明结构示意图(立体图)。
图2是本发明结构示意图(纵截面视图)。
图3是本发明箱体纵截面视图。
图4是本发明箱体俯视图。
图5是本发明夹持器结构示意图(立体图)。
图6是本发明上盖仰视图。
图7是本发明上盖侧视图。
图8是本发明上盖立体图。
具体实施方式
为使泄漏检测装置工作原理、结构特点易于理解，下面结合附图和具体实施方式，进一步阐述该装置。
参考图1和图2，本发明一种静密封泄漏检测装置，包括上盖1与箱体7，箱体7截面为方形，密封条设置于上盖1与箱体7之间。
在箱体7上端面上位于密封条接触区域设置有由若干传感器组成的传感器组8，每个传感器包括由绝缘薄板隔开的正极板和负极板，绝缘薄板厚度越薄，传感器灵敏度就越高。其中，各正极板连接外接电源的正极，各负极板连接外接电源的负极，正常无泄漏状态下整个电路呈断路状态，当泄漏发生时，导电液体介质覆盖到绝缘薄板上方，正极板与负极板导通。
其中，各正极板通过正极金属条11接外接电源的正极，各负极板通过负极金属条10接外接电源的负极，其中每个正极板与正极金属条11之间，或者每个负极板与负极金属条10之间，均连接一个发光二极管6，正极金属条11与外接电源的正极之间，或者负极金属条10与外接电源的负极之间，连接有电流表，当正极板与负极板导通时，相应的发光二极管6工作，总线路上的电流表出现示数。
即，传感器用于检测泄漏，正/负极金属条负责传递传感器获得的电信号，电流表用来指示总线路上电流变化情况，发光二极管指示泄漏位置。
具体而言，参考图3和图4，箱体7是传感器、密封条、夹持器、金属条的载体，箱体7上设有进液口9。在箱体7上端面设置宽度20mm，深度6mm的密封条放置卡槽18，用于密封条的定位放置。箱体7上端面四角设置有螺纹孔21，用于和上盖1配合连接。
在箱体7的三条边界上设置有负极金属条卡槽24和正极金属条卡槽15，三条边界外沿设置有水平的滑轨17，滑轨17距离上边界40mm，各边向外突出20mm，箱体7上沿外侧设置有直角U形的夹持器5，夹持在所述的三个边界上，滑轨17用于和夹持器5配合。
负极金属条卡槽24与正极金属条卡槽15平行，正极金属条卡槽15位于滑轨17上方，每条边界上设有3个8mm*2mm金属条固定位12，负极金属条卡槽24的金属条固定位12中安装负极金属条10，正极金属条卡槽15的金属条固定位12中安装正极金属条11，密封条接触区域内三条边界上分布有30组传感器卡槽13，可以测量密封条接触区域30个不同位置泄漏情况，即密封条接触面上 导电液体渗入界面的位置情况，评估泄漏风险。为了检测密封条接触区域不同位置的泄漏情况，相邻传感器卡槽13的长度依次线性递减(依次相差0.5mm)，使得测量位置分布于整个密封条接触区域。每组传感器卡槽13由沟槽一和沟槽二组成，沟槽一与沟槽二长度相等，分别用于放置一个传感器的正极板和负极板，沟槽一与沟槽二之间间隔0.5mm。
在箱体7的三条边界外侧还设置有用于安装发光二极管的发光二极管安装槽16，无传感器卡槽13的密封条接触区域内设置有半径4mm，高度0.5mm的防过载突起一14，呈不对称分布，用于定位密封条，防止反装，与上盖1配合，防止载荷过大时损坏传感器。
参考图5，夹持器5通过凹槽22、螺栓23与箱体7相连，用于固定传感器组8、金属条以及线路，并防止外界污染物进入传感器、箱体内部。其上部与箱体7的上表面配合，之间夹有负极金属条10，下部设置有与滑轨17配合的凹槽22，正极金属条11夹在凹槽22与滑轨17之间，夹持器5的中部镂空，各发光二极管6位于镂空处，以便于观察发光情况。正负极板接线柱位于夹持器5上，用于和电流表、外界电源串联。
参考图6、图7和图8，上盖1为腔体结构，用于配合箱体7形成完整的密封腔体及对密封条进行固定，与箱体7配合给密封条施加载荷。其四角设置有通孔19，通孔19***设有放置垫片2的凹槽，在密封条上方设置有限位块4，螺栓3穿过通孔19、垫片2、限位块4和螺纹孔21，与箱体7连接，限位块4用于给定压缩量。密封条接触区域进行加长处理，方便观察密封条的加载、泄漏情况，另外防止上盖1下表面与夹持器5或箱体7上部接触。且接触区域的四个边角处设有防过载突起二20，半径4mm，高度0.5mm，与箱体上防过载突起14配合，当过载发生时，防过载突起二20与箱体7表面接触，避免传感器直接承载。当压缩量超过预设值时，上盖1上的密封接触区域与防过载突起二20接触，动作停止，防止载荷过大，传感器、箱体其他结构出现损坏。
考虑到该泄漏检测装置工作中，需要创造一个绝缘环境，排除外界电磁干 扰和自身电流影响，上盖1、箱体7、夹持器5、限位块4制作材料选用绝缘材质。
本发明泄漏检测装置的工作原理为：外接电源的正负极分别与正负极金属条相连，正极线路上串联电流表。传感器之间并联，每个传感器的正极线路上装有发光二极管。正负极板之间由很薄的绝缘材料隔开，正常无泄漏的状态下，整个电路处于断路状态，电流表没有示数。当密封装置发生泄漏时，导电液体流过绝缘材料表面时，正负极板导通，在外界电压的作用下形成电流，发光二极管工作，电流表产生示数，以此来表征导电液体泄漏的发生。30组传感器安装在密封条接触区域的不同位置，可以测量导电液体不同渗入深度下的泄漏情况，当然如果整个线路都导通，那么导电液体将从箱体内泄漏出去。
所使用的密封条测试样品根据箱体、上盖的密封条卡槽尺寸，结构形状进行制备。尺寸略小于卡槽，限位孔位置与上盖防过载突起、箱体防过载突起保持一致。
泄漏装置操作步骤：
1、接通电路，在各个传感器表面涂敷导电液体，观察发光二极管、电流表工作是否正常，线路是否正常。
2、断开电路，除去传感器表面的导电液体，将密封条样品放置于箱体密封条卡槽内。
3、根据预定的压缩量选择限位块。
4、将上盖、螺栓、垫片、箱体、夹持器依次进行装配。
5、使用压力泵，将导电液体经进水口注入箱体内，并保持压力恒定。
6、接通电源，开始检测。
为了提高检测精度，可适当减小正负极板间绝缘薄片的厚度，加大两极板之间的电压。

Claims (8)

  1. 一种静密封泄漏检测装置，密封条设置于上盖(1)与箱体(7)之间，其特征在于，在箱体(7)上端面上位于密封条接触区域设置有由若干传感器组成的传感器组(8)，每个传感器包括由绝缘薄板隔开的正极板和负极板，其中，各正极板连接外接电源的正极，各负极板连接外接电源的负极，正常无泄漏状态下整个电路呈断路状态，当泄漏发生时，导电液体介质覆盖到绝缘薄板上方，正极板与负极板导通。
  2. 根据权利要求1所述静密封泄漏检测装置，其特征在于，所述箱体(7)上沿设置有负极金属条(10)和正极金属条(11)，其中各正极板通过正极金属条(11)接外接电源的正极，各负极板通过负极金属条(10)接外接电源的负极，其中每个正极板与正极金属条(11)之间，或者每个负极板与负极金属条(10)之间，均连接一个发光二极管(6)，所述正极金属条(11)与外接电源的正极之间，或者负极金属条(10)与外接电源的负极之间，连接有电流表。
  3. 根据权利要求2所述静密封泄漏检测装置，其特征在于，所述箱体(7)截面为方形，各传感器设置在箱体(7)上端面的三个边界上，所述正极金属条(11)与负极金属条(10)也设置在该三个边界上，负极金属条(10)和正极金属条(11)位于不同高度。
  4. 根据权利要求3所述静密封泄漏检测装置，其特征在于，所述箱体(7)的三条边界上设置有负极金属条卡槽(24)和正极金属条卡槽(15)，每条边界上设有3个金属条固定位(12)，密封条接触区域内三条边界上分布有多组传感器卡槽(13)，相邻传感器卡槽(13)的长度依次线性递减，使得测量位置分布于整个密封条接触区域，无传感器卡槽(13)的密封条接触区域内设置有防过载突起一(14)，呈不对称分布，用于定位密封条，防止反装。
  5. 根据权利要求4所述静密封泄漏检测装置，其特征在于，每组所述传感器卡槽(13)由沟槽一和沟槽二组成，沟槽一与沟槽二长度相等，分别用于放 置所述正极板和所述负极板，沟槽一与沟槽二之间间隔0.5mm，
  6. 根据权利要求3所述静密封泄漏检测装置，其特征在于，所述箱体(7)上沿外侧设置有直角U形的夹持器(5)，夹持在所述的三个边界上，其中箱体(7)上沿外侧设置有沿所述三个边界方向的水平的滑轨(17)，其中夹持器(5)的上部与箱体(7)的上表面配合，之间夹有负极金属条(10)，下部设置有与滑轨(17)配合的凹槽(22)，正极金属条(11)夹在凹槽(22)与滑轨(17)之间，夹持器(5)的中部镂空，各发光二极管(6)位于镂空处，以便于观察发光情况。
  7. 根据权利要求1所述静密封泄漏检测装置，其特征在于，所述上盖(1)的四角设置有通孔(19)，通孔(19)***设有放置垫片(2)的凹槽，在密封条上方设置有限位块(4)，箱体(7)上端面四角设置有螺纹孔(21)，螺栓(3)穿过通孔(19)、垫片(2)、限位块(4)和螺纹孔(21)，与箱体(7)连接，所述上盖(1)、箱体(7)、夹持器(5)、限位块(4)均为绝缘材料。
  8. 根据权利要求1所述静密封泄漏检测装置，其特征在于，所述密封条接触区域进行加长处理，且接触区域的四个边角处设有防过载突起(20)，当过载发生时，防过载突起(20)与箱体(7)表面接触，避免传感器直接承载。
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