WO2020147435A1 - 一种气体密封性能检测装置及其使用方法 - Google Patents

一种气体密封性能检测装置及其使用方法 Download PDF

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Publication number
WO2020147435A1
WO2020147435A1 PCT/CN2019/121689 CN2019121689W WO2020147435A1 WO 2020147435 A1 WO2020147435 A1 WO 2020147435A1 CN 2019121689 W CN2019121689 W CN 2019121689W WO 2020147435 A1 WO2020147435 A1 WO 2020147435A1
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Prior art keywords
main cabin
gas
gas sealing
infrared thermal
pressure
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PCT/CN2019/121689
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English (en)
French (fr)
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张强
孙绍安
杨伟红
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山东科技大学
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Publication of WO2020147435A1 publication Critical patent/WO2020147435A1/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
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
    • 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
    • G01M3/32—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 containers, e.g. radiators
    • G01M3/3236—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 containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3272—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 containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers

Definitions

  • the invention belongs to the technical field of gas sealing performance detection, and in particular relates to a gas sealing performance detection device and a use method thereof.
  • the gas sealing performance testing in the industry includes two categories: the first category is to detect the leakage position of the sealing element through technical means; the second category is to detect the gas leakage of the gas sealing element through specific experimental equipment.
  • these detection methods are relatively simple and cannot quickly obtain the specific sealing performance parameters of the sealing element.
  • the technical problem solved by the present invention is to provide a fast, accurate and comprehensive gas sealing performance detection device and its use method, which can quickly and accurately find the leak location of the tested gas sealing element, and It can detect the sealing performance of the tested gas sealing element.
  • the present invention provides a gas sealing performance detection device, which includes a main cabin for placing the gas sealing element to be detected, and the inner walls of the main cabin have different heights. Pressure sensors are installed on the main cabin to detect gas pressure values at different heights and positions in the main cabin;
  • Leak detection sensors are arranged at different heights of the inner wall of the main cabin to detect the tracer gas content in the leaked gas at different heights and angles in the main cabin;
  • Sliding guide rails are arranged at different heights of the inner wall of the main cabin, and an infrared thermal imager is slidably connected to the sliding guide rail for taking infrared images from various angles;
  • An analysis display screen is installed on the main cabin body, which is connected with the pressure sensor, leak detection sensor and infrared thermal imager, and is used for comprehensive analysis of the transmitted pressure value, tracer gas concentration value, and infrared image to determine The leakage location and leakage rate of the gas sealing element.
  • the pressure sensor includes a first pressure sensor, a second pressure sensor, and a third pressure sensor located at different positions on the upper, middle, and lower levels of the inner wall of the main cabin.
  • the spatial arrangement positions of the sensors, the second pressure sensor and the third pressure sensor are staggered, and the three pressure sensors form an angle of 120° when projected on the horizontal plane.
  • the leak detection sensor includes a first leak detection sensor, a second leak detection sensor, and a third leak detection sensor at different positions on the upper, middle, and lower levels of the inner wall of the main cabin;
  • the first leak detection sensor, the second leak detection sensor and the third leak detection sensor are respectively arranged adjacent to the first pressure sensor, the second pressure sensor and the third pressure sensor.
  • the sliding guide rail includes a first sliding guide rail, a second sliding guide rail, and a third sliding guide rail distributed on different height levels;
  • the infrared thermal imager includes a first infrared thermal imager, a second infrared thermal imager, and a third infrared thermal imager that are slidably connected to the first sliding rail, the second sliding rail, and the third sliding rail, respectively;
  • the first sliding guide rail, the second sliding guide rail, and the third sliding guide rail are all circular, and the first infrared thermal imager, the second infrared thermal imager, and the third infrared thermal imager are arranged around the main cabin.
  • the central axis rotates in a circle.
  • water mist pressurizers connected to the analysis display screen are symmetrically provided on both sides of the top of the inner wall of the main cabin to form a spray and adjust the air humidity inside the main cabin;
  • the main cabin is provided with a water inlet, one end of the water inlet is connected to the water mist pressurizer through a water inlet pipe, and the other end is connected to a water tank.
  • a humidity detection sensor is provided in the main cabin, connected to the analysis display screen, and used to detect the internal humidity of the main cabin.
  • a light source connected to the analysis display screen is provided at a middle position on the top of the inner wall of the main cabin for providing light to the interior of the main cabin;
  • a reflector is arranged directly above the light source for concentrating all the light from the light source to the position of the gas sealing element.
  • a light intensity detection sensor is provided in the main cabin, connected to the analysis display screen, and used to detect the internal light intensity of the main cabin.
  • an exhaust pipe is provided at the bottom of the main cabin, a filter is connected to an end of the exhaust pipe located inside the main cabin, and an end of the exhaust pipe located outside the main cabin is connected to an exhaust pipe.
  • Air hole sealing cover ;
  • the main cabin is also provided with a power interface for powering the detection device and a data transmission hole for data transmission with the outside world.
  • three infrared thermal imagers that can move circularly on their respective rails are used to take infrared thermal images from various angles, and quickly locate the leak position of the tested sealing element according to the image changes, and then detect it by the pressure sensor on the inner shell of the sealed cabin
  • the internal pressure of the airtight chamber changes, and the gas leak sensor detects the tracer gas content in the airtight chamber leaked from the tested sealing element to calculate the leakage parameters such as the gas leakage rate of the tested gas sealing element and the location of the gas leakage.
  • the present invention also provides a method for using the above-mentioned gas sealing performance detection device, which includes the following steps:
  • the pressure sensor and the leak detection sensor transmit the monitored data to the analysis display screen in real time, and the analysis display screen performs comprehensive analysis based on the transmitted infrared image, pressure value, and tracer gas concentration value to determine the leak location of the gas sealing element ;
  • pressure sensors and leak detection sensors at different heights and positions on the main cabin's inner wall monitor the pressure changes in the main cabin and the tracer gas content in real time, and transmit the collected data back to the analysis display screen in time Store, record and analyze. After the gas pressure in the main cabin reaches the specified value, the analysis display screen performs analysis and calculation based on the collected data to obtain the leakage rate of the detected gas sealing element.
  • the present invention has simple structure and convenient operation. It can not only quickly and accurately find the leakage position of the tested gas sealing element, but also can detect the sealing performance of the tested gas sealing element, and directly obtain the relevant parameters, which greatly improves the previous single
  • the shortcomings of measurement and multi-part measurement of leakage location and sealing performance fully reflect the theoretical ideas of automation and intelligence, and provide a certain theoretical basis for subsequent detection in related fields.
  • Figure 1 is a front view of a gas sealing performance detection device according to a preferred embodiment of the present invention
  • FIG. 2 is a perspective view of a gas sealing performance detection device according to a preferred embodiment of the present invention.
  • Figure 3 is an internal structure diagram of a gas sealing performance detection device according to a preferred embodiment of the present invention.
  • FIG. 4 is a spatial distribution diagram of main components inside the gas sealing performance detection device of the preferred embodiment of the present invention.
  • Figure 5 is a top view of Figure 4.
  • Fig. 6 is an infrared measurement angle diagram of the gas sealing performance detection device of the preferred embodiment of the present invention.
  • 1- bilge support 2- cabin door; 3- main cabin; 4- cabin roof; 5- analysis display screen; 6-operation buttons; 7- data transmission port; 8- power interface; 9- Water inlet; 10-water mist pressurizer; 11- reflector; 12- light source; 13- first leak detection sensor; 14- first pressure sensor; 15- first infrared thermal imager; 16- first sliding guide 17-Second Leak Detection Sensor; 18-Second Pressure Sensor; 19-Second Sliding Rail; 20-Second Infrared Thermal Imager; 21-Third Infrared Thermal Imager; 22-Third Pressure Sensor; 23- The third leak detection sensor; 24-the third sliding guide; 25-gas sealing element; 26-seal fixing seat; 27-filter; 28-exhaust pipe; 29-vent sealing cover; 30-humidity detection sensor ; 31-Light intensity detection sensor.
  • the main body of the gas sealing performance detection device of the present invention is a capsule-shaped sealed cabin.
  • the external structure of the device mainly includes a bilge support 1, a cabin door 2, a main cabin body 3, a water inlet 9, a power interface 8, and data transmission. Port 7, operation buttons 6, analysis display screen 5, cabin roof 4, vent sealing cover 29;
  • the internal structure of this device mainly includes a filter 27 installed on the inner wall of the main cabin 3, a seal holder 26, and a quilt Detected gas sealing element 25, pressure sensor 14, 18, 22, leak detection sensor 13, 17, 23, light intensity detection sensor 31, humidity detection sensor 30, sliding guide 16, 19, 24 and infrared thermal imager 15, 20 , 21, water mist press 10, reflector 11 and light source 12.
  • an exhaust pipe 28, a water inlet pipe, a data transmission circuit, a power transmission circuit, etc. are also provided between the inner and outer shells of the device.
  • the bilge support 1, the main cabin body 3, and the roof 4 of the gas sealing performance detection device provided by the present invention are fixed together by welding.
  • the bilge support 1 is the entire device
  • the supporting structure is fixed at the lower part of the main cabin body 3 to support the entire device.
  • the main cabin 3 is the main structure of the entire device, and provides a carrier for other mechanisms of the device.
  • the cabin door 2 is located on the bulkhead of the main cabin body 3, and the detected gas sealing element 25 can enter and exit the main cabin body 3 through the cabin door 2.
  • the cabin door 2 is required to have a good gas seal Sex.
  • the vent sealing cover 29 is located at the bottom of the main cabin 3, which can isolate external dust from entering the device of the invention when the device of the invention is not used, and can seal the exhaust duct 28 during experimental measurements to prevent the interior of the main cabin 3 Gas leakage in turn affects measurement accuracy.
  • the exhaust pipe 28 is connected to the filter 27.
  • the filter 27 is the gas filtering mechanism of the device of the present invention. After the experiment of the device of the present invention is completed, the leaking gas in the main cabin 3 will pass through the filter 27 to ensure that the filtered gas is non-toxic and harmless After that, it is discharged through the exhaust duct 28.
  • One end of the water inlet 9 on the main cabin 3 of the present invention is connected with the water mist pressurizer 10 through a water inlet pipe, and the other end is connected with a water tank (not shown in the figure), which can provide a water source for the water mist pressurizer 10.
  • the water mist pressurizer 10 is placed symmetrically on both sides of the top of the inner wall of the device.
  • the device absorbs water through the water inlet 9 before starting the measurement, and then passes through the water mist pressurizer 10 to form a spray to adjust the air humidity inside the main cabin 3
  • the water inlet 9 is disconnected from the water tank, and the water mist pressurizer 10 can inhale air into the interior of the main cabin 3 through the water inlet 9, increasing its internal air pressure, and then open the exhaust
  • the air hole sealing cover 29 allows the gas inside the main cabin 3 to be filtered by the filter 27 and discharged to the atmosphere.
  • the light source 12 and the reflector 11 are located in the middle of the inner top wall of the main cabin 3, and they are used in conjunction.
  • the light intensity and the switch of the light source 12 can be controlled by the analysis display screen 5.
  • the reflector 11 can control the The light of the light source 12 is all collected directly below the light source, that is, the position of the gas sealing element 25 to be detected. By irradiating light with a certain intensity of light, the infrared thermal imager can achieve better shooting effects, improve the recognition accuracy, and reduce the The difficulty of analyzing the infrared image of the display screen 5 is analyzed.
  • the power interface 8 is the power inlet of the device and is located at the bottom of the shell of the main cabin 3. During use, the power transmission circuit can directly supply power to the components of the device of the present invention.
  • the data transmission hole 7 is an information transmission hole between the device and the outside, and various types of data tested by the device of the present invention can be transmitted to an external device through the data transmission hole 7.
  • the analysis display screen 5 of the present invention is located on the outer wall of the main cabin 3, which can display various operating instructions and test data. It is compatible with the pressure sensors 14, 18, 22, and the leak detection sensors 13, 17, 23 and The infrared thermal imagers 15, 20, 21 are connected by a data transmission circuit.
  • the operation button 6 is the control platform of the device, and all operation instructions are issued by the operation platform. It is related to the analysis display screen 5, pressure sensors 14, 18, 22, leak detection sensors 13, 17, 23 and infrared The thermal imagers 15, 20, 21 are connected by a data transmission circuit.
  • the pressure sensors 14, 18, 22, leak detection sensors 13, 17, 23, and sliding guides 16, 19, 24, and infrared thermal imagers 15, 20, 21 of the present invention are equally divided into three layers, which are sequentially distributed in the main cabin Body 3 on the inner wall of different height layers.
  • the pressure sensors 14, 18, 22 and the leak detection sensors 13, 17, 23 are used in combination, and they are fixed adjacent to each other on three levels of the inner wall of the main cabin 3 at different heights.
  • the pressure sensors 14, 18, 22 are located on the inner wall of the main cabin 3.
  • the pressure sensors are divided into a first pressure sensor 14, a second pressure sensor 18, a third pressure sensor 22, and three pressure sensors 14, 18 , 22 are located at different positions on the upper, middle, and lower levels of the inner wall of the main cabin 3, and the spatial arrangement positions of the three pressure sensors 14, 18, 22 are interlaced with each other.
  • the three pressure sensors 14, 18, and 22 form an angle of 120° with each other, and respectively detect the gas pressure values of the three different height levels and different positions in the main cabin 3 and then The value is transmitted to the analysis display screen 5 through the data transmission circuit, and then the analysis display screen 5 will take the average pressure value of the three as the final result and display it on the display screen.
  • the leak detection sensors 13, 17, 23 of the present invention are similar in spatial arrangement to the pressure sensors 14, 18, 22, and are divided into the first leak detection sensor 13, the second leak detection sensor 17, and the third leak detection sensor 23. They are located at different positions on the upper, middle and lower levels, and the spatial arrangement of the three leak detection sensors 13, 17, 23 are staggered. From the top view of Fig. 5, the three leak detection sensors 13, 17, and 23 mutually form an angle of 120, respectively detect the tracer gas content in the leaking gas at different heights and different angles in the main cabin 3, and transmit its value to the analysis display screen 5, and according to the difference in value It can be used as a basis to assist in determining the location of the leak.
  • the location of the leak should be located near the level of the leak sensor 13, 17, 23 that detects the largest concentration of tracer gas.
  • the analysis display screen 5 will take the average of the three values as The final measured data, and give instructions to the infrared thermal imagers 15, 20, 21 to make the three infrared thermal imagers 15, 20, 21 move to a higher position for concentration monitoring, reduce the moving speed and continue shooting , And then more accurately identify the leak location.
  • the sliding guide rails 16, 19, 24 of the present invention are located on the inner wall of the main cabin 3, and are divided into a first sliding guide 16, a second sliding guide 19, and a third sliding guide 24.
  • the positions of the guide rails are distributed on different height levels.
  • the function is to provide a guiding function for the circumferential sliding of the infrared thermal imager 15, 20, 21.
  • the infrared thermal imager 15, 20, 21 can move flexibly in the sliding guide rail 16, 19, 24 Rotation.
  • the infrared thermal imagers are divided into a first infrared thermal imager 15, a second infrared thermal imager 20, and a third infrared thermal imager 21.
  • the three infrared thermal imagers 15, 20, and 21 are respectively connected with the sliding The guide rails 16, 19, 24 are connected, and the starting positions are located at the same angular position of the guide rails at different heights.
  • the initial positions of the three infrared thermal imagers 15, 20, 21 are on the same vertical line, which can
  • the three sliding guide rails 16, 19, 24 realize free circular rotation around the central axis of the main cabin body 3, thereby realizing shooting from various angles, and then transmitting the captured infrared images to the analysis display screen 5 for execution Image recognition and data analysis.
  • the analysis display screen 5 finds the location of the leak through a series of analysis of the returned images, it will immediately issue instructions when the three infrared thermal imaging cameras 15, 20, 21 move to the location of the leak immediately And then move slowly and continuously shoot and transmit the captured infrared images back to the analysis display screen 5 until the analysis display screen 5 stops at the best shooting position determined by analysis, and then three infrared thermal imagers 15, 20, 21 automatically adjust the shooting focal length and shooting angle to find the best shooting effect. After all adjustments are completed, it will continue to record the leaking location.
  • the light intensity detection sensor 31 and the humidity detection sensor 30 of the present invention are both provided to improve the shooting accuracy of the infrared thermal imagers 15, 20, 21. According to the prior art, it is known that both light intensity and air humidity can affect the accuracy of infrared photography. Therefore, taking this factor into consideration, the light intensity detection sensor 31 and the humidity detection sensor 30 are provided, both of which are compatible with the analysis display screen. 5 Connection, before the experiment, you can input the ideal air humidity value and light intensity value through the operation button 6 in advance, and then the instruction will be issued to the light source 12 and the water mist pressurizer 10 through the analysis display screen 5. Both receive the instruction Start lighting and spray water mist until the values detected by the light intensity detection sensor 31 and the humidity detection sensor 30 meet the preset values, the analysis display screen 5 issues a stop instruction, the light source 12 and the water mist pressurizer 10 stop working.
  • the gas sealing element 25 to be tested is simultaneously filled with the gas and tracer gas that it originally intended to store, so that the gas pressure inside the gas sealing element 25 to be tested reaches its specified pressure value.
  • the tracer gas is required to be a gas that cannot have any chemical reaction with the gas originally stored in the gas sealing element 25, is not harmful, and can be detected by the leak detection sensors 13, 17, 23, and the tracer gas can be helium gas.
  • each mechanism in the main cabin 3 can be controlled to start working at the same time.
  • the three infrared thermal imaging cameras 15, 20, 21 on the three sliding guide rails 16, 19, 24 simultaneously rotate in the same direction from the initial position, and take pictures every time they rotate a certain angle (generally not more than 20 degrees)
  • the captured infrared image is sent to the analysis display screen 5 of the device of the present invention for identification and analysis.
  • the pressure sensors 14, 18, 22 and the leak detection sensors 13, 17, 23 will also transmit the monitored data in real time
  • the analysis display screen 5 will conduct a comprehensive analysis based on the transmitted infrared image, pressure value, concentration value, etc. Determine the location of the leak, and then the system will immediately issue instructions to rotate the three infrared thermal imaging cameras 15, 20, 21 to the location of the leak at the same time, and adjust the shooting angle and auto focus respectively, so that the leak location can be clearly reflected in the three infrared cameras.
  • thermal imagers 15, 20, 21, and start video recording and fast shooting at the same time so that the leak position of the gas sealing element 25 can be accurately located.
  • the infrared images returned by 20 and 21 are analyzed, which helps to analyze the sealing performance of the gas sealing element 25.
  • three pressure sensors 14, 18, 22 and three leak detection sensors 13, 17, 23 at different heights and positions on the inner wall of the main cabin 3 are also monitoring the pressure changes and indications in the main cabin 3 in real time. The content of the trace gas, and the collected data will be sent back to the analysis display screen 5 for storage, recording and analysis.
  • the analysis display screen 5 can be Perform relevant analysis and calculations on the various types of data, and finally obtain a series of sealing performance parameters such as the leakage rate and leakage location of the tested gas sealing element 25.
  • the invention uses three infrared thermal imagers that can move circularly on their respective guide rails to take infrared thermal images from various angles, quickly locate the leakage position of the tested sealing element according to the image changes, and then detect the sealing by a pressure sensor on the inner shell of the sealed cabin The internal pressure of the cabin changes, and the gas leak sensor detects the tracer gas content leaked from the tested sealing element in the sealed cabin to calculate the leakage parameters such as the gas leak rate of the tested gas sealing element and the location of the gas leak.

Abstract

一种气体密封性能检测装置及其使用方法，包括用于放置被检测的气体密封元件的主舱体（3），主舱体（3）内壁的不同高度上设有压力传感器（14，18，22）、泄漏检测传感器（13，17，23）和滑动导轨（16，19，24），滑动导轨（16，19，24）上滑动连接有红外热成像仪（15，20，21），主舱体（3）上安装有与压力传感器（14，18，22）、泄漏检测传感器（13，17，23）和红外热成像仪（15，20，21）连接的分析显示屏（5）。通过可在各自滑动导轨（16，19，24）上圆周运动的三台红外热成像仪（15，20，21）拍摄各个角度的红外热图像，根据图像变化迅速定位被测密封元件的泄露位置，然后通过压力传感器（14，18，22）检测密封舱内部压力变化，再通过泄漏检测传感器（13，17，23）检测密封舱内由被测气体密封元件泄露出来的示踪气体含量进而被测气体密封元件的气体泄漏率等泄漏参数以及其气体泄漏的位置。

Description

一种气体密封性能检测装置及其使用方法 技术领域
本发明属于气体密封性能检测的技术领域，尤其涉及一种气体密封性能检测装置及其使用方法。
背景技术
目前，市场上有很多的气体密封元件，这些气体密封元件在各自的机械设备中都起到重要的作用，故此，对气体密封元件的密封性能要求较高。目前行业内的气体密封性能检测包括两大类：第一类是通过技术手段对密封元件的泄露位置进行检测；第二类是通过特定的实验设备对气体密封元件的气体泄漏量进行检测。这些检测方法一方面较为单一，并不能迅速得出该密封元件的具体密封性能参数，另一方面由于受到检测技术或仪器的限制，极易造成较大的误差，影响检测结果的准确性。
发明内容
基于以上现有技术的不足，本发明所解决的技术问题在于提供一种快速、准确、全面的气体密封性能检测装置及其使用方法，能够快速准确的找到被测气体密封元件的泄露位置，并能够检测被测气体密封元件的密封性能。
为了解决上述技术问题，本发明通过以下技术方案来实现：本发明提供一种气体密封性能检测装置，包括用于放置被检测的气体密封元件的主舱体，所述主舱体内壁的不同高度上设有压力传感器，用于检测主舱体内 不同高度层面不同位置的气体压力值；
所述主舱体内壁的不同高度上设有泄漏检测传感器，用于检测主舱体内不同高度、不同角度处的泄漏气体中示踪气体的含量；
所述主舱体内壁的不同高度上设有滑动导轨，所述滑动导轨上滑动连接有红外热成像仪，用于从各个角度进行拍摄得到红外图像；
所述主舱体上安装有分析显示屏，与所述压力传感器、泄漏检测传感器和红外热成像仪连接，用于对传输回来的压力值、示踪气体浓度值、红外图像进行综合分析，确定气体密封元件的泄漏位置和泄漏率。
可选的，所述压力传感器包括分别位于所述主舱体内壁的上、中、下三个层面的不同位置的第一压力传感器、第二压力传感器和第三压力传感器，所述第一压力传感器、第二压力传感器和第三压力传感器的空间排布位置相互交错，且三个压力传感器投影在水平面上时互成120°夹角。
进一步的，所述泄漏检测传感器包括分别位于所述主舱体内壁的上、中、下三个层面的不同位置的第一泄漏检测传感器、第二泄漏检测传感器和第三泄漏检测传感器；
所述第一泄漏检测传感器、第二泄漏检测传感器和第三泄漏检测传感器分别与所述第一压力传感器、第二压力传感器和第三压力传感器相邻设置。
可选的，所述滑动导轨包括分布在不同高度层面上的第一滑动导轨、第二滑动导轨和第三滑动导轨；
所述红外热成像仪包括分别滑动连接在所述第一滑动导轨、第二滑动导轨和第三滑动导轨上的第一红外热成像仪、第二红外热成像仪和第三红外热成像仪；
所述第一滑动导轨、第二滑动导轨和第三滑动导轨均呈圆形，并且其上的第一红外热成像仪、第二红外热成像仪和第三红外热成像仪绕主舱体 的中轴线的作圆周转动。
可选的，所述主舱体的内壁顶部两侧对称设有与所述分析显示屏连接的水雾加压器，用于形成喷雾，调节主舱体内部的空气湿度；
所述主舱体上设有进水口，所述进水口的一端通过进水管道与所述水雾加压器连接，其另一端连接水箱。
进一步的，所述主舱体内设有湿度检测传感器，与所述分析显示屏连接，用于检测主舱体的内部湿度。
可选的，所述主舱体的内壁顶部的中间位置设有与所述分析显示屏连接的光源，用于为主舱体的内部提供光照；
所述光源的正上方设有反光罩，用于将所述光源的光全部聚集到气体密封元件的位置。
进一步的，所述主舱体内设有光强检测传感器，与所述分析显示屏连接，用于检测主舱体的内部光照强度。
可选的，所述主舱体的底部设有排气管道，所述排气管道的位于主舱体内部的一端连接有过滤器，所述排气管道的位于主舱体外的一端连接有排气孔密封盖；
所述主舱体上还设有用于为检测装置供电的电源接口和用于与外界进行数据传输的数据传输孔。
由上，通过可在各自导轨上圆周运动的三台红外热成像仪拍摄各个角度的红外热图像，根据图像变化迅速定位被测密封元件的泄露位置，然后通过密封舱内壳上的压力传感器检测密封舱内部压力变化，再通过气体泄漏传感器检测密封舱内由被测密封元件泄露出来的示踪气体含量进而实现计算出被测气体密封元件的气体泄漏率等泄漏参数以及其气体泄漏的位置。
本发明还提供一种上述的气体密封性能检测装置的使用方法，包括以 下步骤：
S10：首先将被检测的气体密封元件内同时充满其原本所要存储的气体和示踪气体，使气体密封元件内部气体压力达到其指定压力值；
S20：将被检测的气体密封元件放入到主舱体内；
S30：位于滑动导轨上的红外热成像仪同时从初始位置开始沿同一方向转动，并且每转动一定角度拍摄一次，然后将拍摄到的红外图像发送到分析显示屏中进行识别分析；
S40：压力传感器和泄漏检测传感器实时将监测到的数据传输到分析显示屏中，分析显示屏根据传输回来的红外图像、压力值、示踪气体浓度值进行综合分析，确定气体密封元件的泄漏位置；
S50：使红外热成像仪同时转动到泄漏位置处，使泄露位置清楚的反应在红外热成像仪的拍摄范围内，同时开始录像和快速拍摄，将气体密封元件的泄漏位置准确定位；
S60：同时位于主舱体内壁上不同高度、不同位置的压力传感器和泄漏检测传感器实时监测主舱体内的压力变化和示踪气体的含量，并将其采集到的数据及时传回分析显示屏进行存储、记录和分析，主舱体内气体压力达到指定值后，分析显示屏根据采集到的数据进行分析计算，得出被检测的气体密封元件的泄漏率。
由上，本发明结构简单，操作便捷，既能够快速准确的找到被测气体密封元件的泄露位置，又能够检测被测气体密封元件的密封性能，直接得出相关参数，大大改善了以往的单一测量和多部测量泄露位置和密封性能的弊端，充分体现出了自动化和智能化的理论思想，为后续的相关领域检测提供一定的理论依据。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和 其他目的、特征和优点能够更明显易懂，以下结合优选实施例，并配合附图，详细说明如下。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍。
图1为本发明优选实施例的气体密封性能检测装置的主视图；
图2为本发明优选实施例的气体密封性能检测装置的立体图；
图3为本发明优选实施例的气体密封性能检测装置的内部结构图；
图4为本发明优选实施例的气体密封性能检测装置的内部主要元件空间分布图；
图5为图4的俯视图；
图6为本发明优选实施例的气体密封性能检测装置的红外测量角度图。
图中，1-舱底支座；2-舱门；3-主舱体；4-舱顶；5-分析显示屏；6-操作按键；7-数据传输口；8-电源接口；9-进水口；10-水雾加压器；11-反光罩；12-光源；13-第一泄漏检测传感器；14-第一压力传感器；15-第一红外热成像仪；16-第一滑动导轨；17-第二泄漏检测传感器；18-第二压力传感器；19-第二滑动导轨；20-第二红外热成像仪；21-第三红外热成像仪；22-第三压力传感器；23-第三泄漏检测传感器；24-第三滑动导轨；25-气体密封元件；26-密封件固定座；27-过滤器；28-排气管道；29-排气孔密封盖；30-湿度检测传感器；31-光强检测传感器。
具体实施方式
下面结合附图详细说明本发明的具体实施方式，其作为本说明书的一 部分，通过实施例来说明本发明的原理，本发明的其他方面、特征及其优点通过该详细说明将会变得一目了然。在所参照的附图中，不同的图中相同或相似的部件使用相同的附图标号来表示。
本发明的气体密封性能检测装置的主体外形为一个胶囊型的密封舱，装置的外部结构主要包括舱底支座1、舱门2、主舱体3、进水口9、电源接口8、数据传输口7、操作按键6、分析显示屏5、舱顶4、排气孔密封盖29；本装置的内部结构主要包括安装在主舱体3内壁上的过滤器27、密封件固定座26、被检测的气体密封元件25、压力传感器14，18，22、泄漏检测传感器13，17，23、光强检测传感器31、湿度检测传感器30、滑动导轨16，19，24和红外热成像仪15，20，21、水雾加压器10、反光罩11和光源12。另外，本装置内外壳体之间还设有排气管道28、进水管道、数据传输电路、电力传输电路等。
如图1-6所示，本发明提供的气体密封性能检测装置的舱底支座1、主舱体3和舱顶4利用焊接手段固定在一起，所述舱底支座1是整个装置的支撑结构，固定在主舱体3的下部，起到支撑整个装置的作用。所述主舱体3是整个装置的主体结构，为所述装置的其它机构提供载体。所述舱门2位于所述主舱体3的舱壁上，被检测的气体密封元件25可以通过所述舱门2进出所述主舱体3，所述舱门2要求具有良好的气体密封性。所述排气孔密封盖29位于主舱体3的底部，不使用本发明装置时可以隔绝外部灰尘进入本发明的装置，实验测量时可以密封所述排气管道28，防止主舱体3内部气体泄漏进而影响测量精度。所述排气管道28与过滤器27相连，当所述装置检测实验完成后，所述主舱体3内的气体会先经过所述过滤器27，再由所述排气管道28排出。所述过滤器27为本发明装置的气体过滤机构，当本发明装置实验完成后，所述主舱体3内的泄漏气体会经过所述过滤器27，保证其过滤后的气体无毒无害后，经由所述排气管道28排出。
本发明的主舱体3上进水口9的一端与所述水雾加压器10通过进水管道连接，另一端外接水箱(图中未示出)，可为水雾加压器10提供水源。所述水雾加压器10位于装置内壁顶部两侧对称放置，一方面装置开始测量之前通过进水口9吸水，再通过水雾加压器10后形成喷雾，以便调节主舱体3内部空气湿度；另一方面实验测量完成后，进水口9与水箱断开，水雾加压器10通过进水口9可以吸入空气注入到所述主舱体3的内部，增加其内部气压，此时打开排气孔密封盖29，可使所述主舱体3内部的气体通过过滤器27过滤后排到大气中。
光源12和反光罩11位于所述主舱体3内部顶壁中间处，两者配合使用，所述光源12的光照强度和开关可以通过分析显示屏5控制，所述反光罩11可将所述光源12的光全部聚集到光源的正下方，即被检测的气体密封元件25的位置，通过一定光照强度的光线照射，可以使得红外热成像仪的拍摄效果更佳，提高识别精度，减轻所述分析显示屏5对红外图像的分析难度。
电源接口8为所述装置的电源接入口，位于所述主舱体3的外壳底部，使用过程中可以通过电力传输电路直接为本发明的装置中的各个部件供电。所述数据传输孔7为所述装置与外界的信息传输孔，本发明装置测试得来的各类数据均可以通过数据传输孔7传输到外部设备中去。
本发明的分析显示屏5位于所述主舱体3的外壁上，其能显示各类操作指令和测试数据，其与所述压力传感器14，18，22、泄漏检测传感器13，17，23和红外热成像仪15，20，21通过数据传输电路连接。所述操作按键6是所述装置的操控平台，一切操作指令均由操作平台操作发出，其与所述分析显示屏5、压力传感器14，18，22、泄漏检测传感器13，17，23和红外热成像仪15，20，21通过数据传输电路连接。
本发明的压力传感器14，18，22、泄漏检测传感器13，17，23和滑 动导轨16，19，24、红外热成像仪15，20，21均分为三层，依次分布在所述主舱体3内壁的不同高度层上。所述压力传感器14，18，22和所述泄漏检测传感器13，17，23搭配使用，两者相相邻固定在所述主舱体3内壁不同高度的三个层面上。所述压力传感器14，18，22位于所述主舱体3内壁上，所述压力传感器分为第一压力传感器14、第二压力传感器18、第三压力传感器22，三个压力传感器14，18，22分别位于所述主舱体3内壁的上、中、下三个层面的不同位置，并且三个压力传感器14，18，22的空间排布位置相互交错，从图4和图5的本发明装置内部主要元件空间分布图来看，三个压力传感器14，18，22互成120°夹角，分别检测所述主舱体3内三个不同高度层面不同位置的气体压力值并将其值通过数据传输电路传送到所述分析显示屏5中去，然后所述分析显示屏5会取三者的平均压力值作为最终结果显示在显示屏上。
本发明的泄漏检测传感器13，17，23与所述压力传感器14，18，22的空间布置类似，分为第一泄漏检测传感器13、第二泄漏检测传感器17、第三泄漏检测传感器23，同样位于上、中、下三个层面的不同位置，且三个泄漏检测传感器13，17，23的空间排布位置相互交错，从图5的俯视图中来看，三个泄漏检测传感器13，17，23互成120夹角，分别检测所述主舱体3内不同高度、不同角度处的泄漏气体中示踪气体的含量，并将其值传送到所述分析显示屏5中，并根据数值差异可以作为辅助判断泄露位置的依据，泄露位置应位于检测示踪气体浓度最大的所述泄漏传感器13，17，23所在层面位置附近，所述分析显示屏5会将三者数值取平均值后作为最终测量的数据，并给所述红外热成像仪15，20，21下达指令，使所述三个红外热成像仪15，20，21运动到浓度监测较高位置时，降低移动速度并连续拍摄，进而更加精准的识别出泄露位置。
本发明的滑动导轨16，19，24位于所述主舱体3内壁上，分为第一滑 动导轨16、第二滑动导轨19、第三滑动导轨24，其位置分布在不同高度层面上，其作用是为所述红外热成像仪15，20，21的圆周滑动提供导向作用，装置开始工作时，所述红外热成像仪15，20，21可以在所述滑动导轨16，19，24内灵活的转动。所述红外热成像仪分为第一红外热成像仪15、第二红外热成像仪20、第三红外热成像仪21，所述三台红外热成像仪15，20，21分别与所述滑动导轨16，19，24连接，起始位置位于不同高度层导轨的相同角度位置处，三台所述红外热成像仪15，20，21初始时刻的位置是在同一竖直线上的，其能够在三个滑动导轨16，19，24上实现绕所述主舱体3的中轴线自由圆周转动，进而实现从各个角度进行拍摄，然后将拍摄到的红外图像传输到所述分析显示屏5进行图像识别和数据分析，当所述分析显示屏5通过对传回的图像的一系列分析发现泄露位置时，会立即下达指令时三个红外热成像仪15，20，21立刻快速移动到泄露位置附近，然后缓慢移动连续拍摄并将拍摄到的红外图像传回所述分析显示屏5中，直到所述分析显示屏5分析认定的最佳拍摄位置处停止，然后三台所述红外热成像仪15，20，21自动调整拍摄焦距和拍摄角度，以寻求最佳的拍摄效果，全部调整完成后开始持续录像泄露位置的泄漏情况。
本发明的光强检测传感器31和湿度检测传感器30均为了提升所述红外热成像仪15，20，21的拍摄精度而设置。根据现有技术，已知光照强度和空气湿度均能对红外拍摄精度产生影响，故考虑到此因素，设置所述光强检测传感器31和湿度检测传感器30，两者都与所述分析显示屏5连接，实验之前可以预先通过所述操作按键6输入理想的空气湿度值和光照强度值，然后该指令会通过分析显示屏5下达给光源12和水雾加压器10，二者接到指令开始光照和喷水雾，直到所述光强检测传感器31和湿度检测传感器30所检测到的值符合预先设定后，分析显示屏5发出停止指令，所述光源12和水雾加压器10停止工作。
下面，参照图1～图6并结合上述结构描述，对本发明的气体密封性能检测装置的使用方法进行描述：
首先将被检测的气体密封元件25内同时充满其原本所要存储的气体和示踪气体，使被测的气体密封元件25内部气体压力达到其指定压力值。要求示踪气体为不能与气体密封元件25内原本存储气体发生任何化学反应，且不具有危害性，并能被泄漏检测传感器13，17，23所检测的气体，其中示踪气体可选为氦气。
然后迅速打开本发明的主舱体3的舱门2，将需要被检测的气体密封元件25放入到主舱体3内，并将其放置在主舱体3内部舱底的密封件固定座26上后关闭舱门2，并打开密封舱电源开关。通过控制操作按键6可以控制主舱体3内的各机构同时开始工作。此时，位于三个滑动导轨16，19，24上的三台红外热成像仪15，20，21同时从初始位置开始沿同一方向转动，并且每转动一定角度(一般不大于20度)便拍摄一次，然后将拍摄到的红外图像发送到本发明装置的分析显示屏5中进行识别分析，同时压力传感器14，18，22和泄漏检测传感器13，17，23也会实时将监测到的数据传输到分析显示屏5中，当三台红外热成像仪15，20，21转动完一周回到初始位置后，分析显示屏5会根据传输回来的红外图像、压力值、浓度值等进行综合分析，确定泄漏位置，然后系统会立刻发出指令使三台红外热成像仪15，20，21同时转动到泄漏位置处，并各自调整拍摄角度和自动对焦，使泄露位置能够清楚的反映应在三台红外热成像仪15，20，21的拍摄范围内，并同时开始录像和快速拍摄，这样便将气体密封元件25的泄漏位置准确定位了，可以根据来自不同拍摄角度的三台红外热成像仪15，20，21传回的红外图像进行分析，有助于分析气体密封元件25的密封性能。与此同时位于主舱体3内壁上不同高度、不同位置的三个压力传感器14，18，22和三个泄漏检测传感器13，17，23也在实时监测主舱体3内的压 力变化和示踪气体的含量，并将其采集到的数据及时传回分析显示屏5进行存储、记录和分析，这样一段时间后主舱体3内气体压力达到指定值后，分析显示屏5可以根据采集到的各类数据进行相关的分析计算，最终得出被测气体密封元件25的泄漏率，泄露位置等一系列密封性能参数。
本发明通过可在各自导轨上圆周运动的三台红外热成像仪拍摄各个角度的红外热图像，根据图像变化迅速定位被测密封元件的泄露位置，然后通过密封舱内壳上的压力传感器检测密封舱内部压力变化，再通过气体泄漏传感器检测密封舱内由被测密封元件泄露出来的示踪气体含量进而实现计算出被测气体密封元件的气体泄漏率等泄漏参数以及其气体泄漏的位置。
以上所述是本发明的优选实施方式而已，当然不能以此来限定本发明之权利范围，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和变动，这些改进和变动也视为本发明的保护范围。

Claims (10)

  1. 一种气体密封性能检测装置，包括用于放置被检测的气体密封元件的主舱体，其特征在于：
    所述主舱体内壁的不同高度上设有压力传感器，用于检测主舱体内不同高度层面不同位置的气体压力值；
    所述主舱体内壁的不同高度上设有泄漏检测传感器，用于检测主舱体内不同高度、不同角度处的泄漏气体中示踪气体的含量；
    所述主舱体内壁的不同高度上设有滑动导轨，所述滑动导轨上滑动连接有红外热成像仪，用于从各个角度进行拍摄得到红外图像；
    所述主舱体上安装有分析显示屏，与所述压力传感器、泄漏检测传感器和红外热成像仪连接，用于对传输回来的压力值、示踪气体浓度值、红外图像进行综合分析，确定气体密封元件的泄漏位置和泄漏率。
  2. 如权利要求1所述的气体密封性能检测装置，其特征在于，所述压力传感器包括分别位于所述主舱体内壁的上、中、下三个层面的不同位置的第一压力传感器、第二压力传感器和第三压力传感器，所述第一压力传感器、第二压力传感器和第三压力传感器的空间排布位置相互交错，且三个压力传感器投影在水平面上时互成120°夹角。
  3. 如权利要求2所述的气体密封性能检测装置，其特征在于，所述泄漏检测传感器包括分别位于所述主舱体内壁的上、中、下三个层面的不同位置的第一泄漏检测传感器、第二泄漏检测传感器和第三泄漏检测传感器；
    所述第一泄漏检测传感器、第二泄漏检测传感器和第三泄漏检测传感器分别与所述第一压力传感器、第二压力传感器和第三压力传感器相邻设置。
  4. 如权利要求1所述的气体密封性能检测装置，其特征在于，所述滑 动导轨包括分布在不同高度层面上的第一滑动导轨、第二滑动导轨和第三滑动导轨；
    所述红外热成像仪包括分别滑动连接在所述第一滑动导轨、第二滑动导轨和第三滑动导轨上的第一红外热成像仪、第二红外热成像仪和第三红外热成像仪；
    所述第一滑动导轨、第二滑动导轨和第三滑动导轨均呈圆形，并且其上的第一红外热成像仪、第二红外热成像仪和第三红外热成像仪绕主舱体的中轴线的作圆周转动。
  5. 如权利要求1所述的气体密封性能检测装置，其特征在于，所述主舱体的内壁顶部两侧对称设有与所述分析显示屏连接的水雾加压器，用于形成喷雾，调节主舱体内部的空气湿度；
    所述主舱体上设有进水口，所述进水口的一端通过进水管道与所述水雾加压器连接，其另一端连接水箱。
  6. 如权利要求5所述的气体密封性能检测装置，其特征在于，所述主舱体内设有湿度检测传感器，与所述分析显示屏连接，用于检测主舱体的内部湿度。
  7. 如权利要求1所述的气体密封性能检测装置，其特征在于，所述主舱体的内壁顶部的中间位置设有与所述分析显示屏连接的光源，用于为主舱体的内部提供光照；
    所述光源的正上方设有反光罩，用于将所述光源的光全部聚集到气体密封元件的位置。
  8. 如权利要求7所述的气体密封性能检测装置，其特征在于，所述主舱体内设有光强检测传感器，与所述分析显示屏连接，用于检测主舱体的内部光照强度。
  9. 如权利要求1所述的气体密封性能检测装置，其特征在于，所述主 舱体的底部设有排气管道，所述排气管道的位于主舱体内部的一端连接有过滤器，所述排气管道的位于主舱体外的一端连接有排气孔密封盖；
    所述主舱体上还设有用于为检测装置供电的电源接口和用于与外界进行数据传输的数据传输孔。
  10. 一种采用如权利要求1至9任一项所述的气体密封性能检测装置的使用方法，其特征在于，包括以下步骤：
    S10：首先将被检测的气体密封元件内同时充满其原本所要存储的气体和示踪气体，使气体密封元件内部气体压力达到其指定压力值；
    S20：将被检测的气体密封元件放入到主舱体内；
    S30：位于滑动导轨上的红外热成像仪同时从初始位置开始沿同一方向转动，并且每转动一定角度拍摄一次，然后将拍摄到的红外图像发送到分析显示屏中进行识别分析；
    S40：压力传感器和泄漏检测传感器实时将监测到的数据传输到分析显示屏中，分析显示屏根据传输回来的红外图像、压力值、示踪气体浓度值进行综合分析，确定气体密封元件的泄漏位置；
    S50：使红外热成像仪同时转动到泄漏位置处，使泄露位置清楚的反应在红外热成像仪的拍摄范围内，同时开始录像和快速拍摄，将气体密封元件的泄漏位置准确定位；
    S60：同时位于主舱体内壁上不同高度、不同位置的压力传感器和泄漏检测传感器实时监测主舱体内的压力变化和示踪气体的含量，并将其采集到的数据及时传回分析显示屏进行存储、记录和分析，主舱体内气体压力达到指定值后，分析显示屏根据采集到的数据进行分析计算，得出被检测的气体密封元件的泄漏率。
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