CN110487487A - A Leak Detection Method for Transformer Breathing System Based on Infrared Imaging Technology - Google Patents
A Leak Detection Method for Transformer Breathing System Based on Infrared Imaging Technology Download PDFInfo
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Abstract
本申请属于电力设备检测技术领域，尤其涉及一种基于红外成像技术的变压器呼吸系统检漏方法。本申请公开了一种基于红外成像技术的变压器呼吸系统检漏方法，包括以下步骤：将变压器的储油柜呼吸管道与六氟化硫气瓶相连接；打开六氟化硫气瓶的阀门，通过储油柜呼吸管道向储油柜胶囊充入六氟化硫气体；打开储油柜两侧的排气阀门进行排气；继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门；使用六氟化硫红外成像仪检测变压器呼吸系统各部位是否存在六氟化硫气体，根据检测结果判断变压器呼吸系统的密封性。本申请的方法具有检测精度高且直观快速的优点，同时，适用范围更广，适于行业内推广应用。
The application belongs to the technical field of electric equipment detection, and in particular relates to a method for detecting leaks in a transformer breathing system based on infrared imaging technology. The present application discloses a method for detecting leaks in a breathing system of a transformer based on infrared imaging technology, comprising the following steps: connecting the breathing pipe of the oil conservator of the transformer with the sulfur hexafluoride gas cylinder; opening the valve of the sulfur hexafluoride gas cylinder, Fill the oil conservator capsule with sulfur hexafluoride gas through the breathing pipe of the oil conservator; open the exhaust valves on both sides of the oil conservator to exhaust; continue to fill the oil conservator capsule with sulfur hexafluoride gas and keep the preset After a certain time, close the valve of the sulfur hexafluoride gas cylinder; use a sulfur hexafluoride infrared imager to detect whether there is sulfur hexafluoride gas in each part of the transformer breathing system, and judge the tightness of the transformer breathing system according to the test results. The method of the present application has the advantages of high detection accuracy, intuition and speed, and at the same time, has a wider application range, and is suitable for popularization and application in the industry.
Description
技术领域technical field
本申请涉及电力设备检测技术领域，尤其涉及一种基于红外成像技术的变压器呼吸系统检漏方法。The present application relates to the technical field of electric equipment detection, in particular to a method for detecting leaks in a transformer breathing system based on infrared imaging technology.
背景技术Background technique
变压器呼吸系统作为变压器与外界连通的唯一渠道，当变压器的内部油位因温度升高而出现膨胀状况时,挤压胶囊中的空气；当变压器内部油温降低时,将外部的空气吸入胶囊中,以保持变压器油位的相对平衡状态。当变压器呼吸系统发生渗漏时，胶囊无法通过呼吸作用调节变压器油位的变化，同时也容易将外界的水分、气体等物质带入至变压器中，造成变压器绝缘油中水分、含气量超标，降低变压器内部绝缘和加速变压器绝缘老化速率，对变压器安全运行造成不利影响。The transformer breathing system is the only channel for the transformer to communicate with the outside world. When the internal oil level of the transformer expands due to temperature rise, it squeezes the air in the capsule; when the internal oil temperature of the transformer drops, it sucks the external air into the capsule. , in order to maintain the relative balance of transformer oil level. When leakage occurs in the breathing system of the transformer, the capsule cannot adjust the change of the oil level of the transformer through respiration, and at the same time, it is easy to bring moisture, gas and other substances from the outside into the transformer, causing the moisture and gas content in the transformer insulating oil to exceed the standard, reducing the The internal insulation of the transformer and the accelerated aging rate of the transformer insulation have adverse effects on the safe operation of the transformer.
目前检测变压器呼吸系统密封性的方法主要通过在储油柜的呼吸管路充入不低于-40℃的氮气或干燥空气使储油柜中的胶囊鼓起，排出储油柜内少量的气体，直至储油柜顶部放气阀冒油为止，将储油柜内的空气排净后，拧紧放气阀，然后再次将氮气或干燥空气从呼吸器口充入胶囊中，使得储油柜油面顶部施加30kPa静压力，关闭各个阀门，保持30kPa静压力持续24小时，24小时后压力值不得小于所施压力值得90％。此种方法既费时又不准确，现场操作时受外界环境温度影响较大，无法直观判断胶囊密封性的好坏。At present, the method of testing the tightness of the breathing system of the transformer is mainly to fill the breathing line of the oil conservator with nitrogen or dry air not lower than -40°C to inflate the capsule in the oil conservator, and discharge a small amount of gas in the oil conservator. , until the oil leaks from the air release valve on the top of the oil conservator, after the air in the oil conservator is exhausted, tighten the air release valve, and then fill the capsule with nitrogen or dry air from the mouth of the respirator again, so that the oil in the oil conservator Apply a static pressure of 30kPa to the top of the surface, close each valve, and maintain a static pressure of 30kPa for 24 hours. After 24 hours, the pressure value must not be less than 90% of the value of the applied pressure. This method is time-consuming and inaccurate, and the on-site operation is greatly affected by the external environment temperature, so it is impossible to visually judge whether the sealing performance of the capsule is good or bad.
基于以上情况，本申请以六氟化硫气体为媒介，利用红外成像技术，能迅速、直观地判断变压器呼吸系统是否存在渗漏问题。Based on the above situation, this application uses sulfur hexafluoride gas as a medium and uses infrared imaging technology to quickly and intuitively judge whether there is leakage in the transformer breathing system.
发明内容Contents of the invention
本申请提供了一种基于红外成像技术的变压器呼吸系统检漏方法，以解决当前检测方法耗时且准确度不高的问题。The present application provides a transformer breathing system leak detection method based on infrared imaging technology to solve the problem of time-consuming and low accuracy of the current detection method.
本申请采用的技术方案如下：The technical scheme that this application adopts is as follows:
一种基于红外成像技术的变压器呼吸系统检漏方法，包括以下步骤：A method for detecting leaks in a transformer respiratory system based on infrared imaging technology, comprising the following steps:
将变压器的储油柜呼吸管道与六氟化硫气瓶相连接；Connect the breathing pipe of the oil conservator of the transformer with the sulfur hexafluoride cylinder;
打开六氟化硫气瓶的阀门，通过储油柜呼吸管道向储油柜胶囊充入六氟化硫气体；Open the valve of the sulfur hexafluoride gas cylinder, and fill the oil conservator capsule with sulfur hexafluoride gas through the breathing pipe of the oil conservator;
打开储油柜两侧的排气阀门进行排气；Open the exhaust valves on both sides of the oil conservator to exhaust;
继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门；Continue to fill the oil conservator capsule with sulfur hexafluoride gas and close the valve of the sulfur hexafluoride cylinder after keeping for the preset time;
使用六氟化硫红外成像仪检测变压器呼吸系统各部位是否存在六氟化硫气体，根据检测结果判断变压器呼吸系统的密封性。Use the sulfur hexafluoride infrared imager to detect whether there is sulfur hexafluoride gas in each part of the transformer breathing system, and judge the tightness of the transformer breathing system according to the detection results.
可选的，在所述将变压器的储油柜呼吸管道与六氟化硫气瓶相连接的步骤中，包括：Optionally, in the step of connecting the breathing pipeline of the oil conservator of the transformer with the sulfur hexafluoride gas cylinder, including:
将变压器的储油柜呼吸管道通过阀门以及减压阀与六氟化硫气瓶相连接。Connect the breathing pipe of the oil conservator of the transformer to the sulfur hexafluoride cylinder through the valve and the pressure reducing valve.
可选的，在所述将变压器的储油柜呼吸管道与六氟化硫气瓶相连接的步骤中，所述六氟化硫气瓶中的六氟化硫气体的湿度不高于40.6μL/L，纯度不低于99.9％，空气含量不高于0.03％。Optionally, in the step of connecting the breathing pipeline of the oil conservator of the transformer to the sulfur hexafluoride gas cylinder, the humidity of the sulfur hexafluoride gas in the sulfur hexafluoride gas cylinder is not higher than 40.6 μL /L, the purity is not lower than 99.9%, and the air content is not higher than 0.03%.
可选的，在所述打开储油柜两侧的排气阀门进行排气的步骤中，包括：Optionally, in the step of opening the exhaust valves on both sides of the oil conservator to exhaust, including:
打开储油柜两侧的排气阀门，当所述排气阀门流出变压器油时，关闭储油柜两侧的排气阀门。Open the exhaust valves on both sides of the oil conservator, and close the exhaust valves on both sides of the oil conservator when the transformer oil flows out from the exhaust valve.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门的步骤中，包括：Optionally, in the step of closing the valve of the sulfur hexafluoride cylinder after continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time, including:
当储油柜胶囊中充入的六氟化硫气体压力达到30kpa时，关闭六氟化硫气瓶的阀门并拧紧。When the pressure of the sulfur hexafluoride gas filled in the capsule of the oil conservator reaches 30kpa, close the valve of the sulfur hexafluoride gas cylinder and tighten it.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门的步骤中，所述预设时间为1小时。Optionally, in the step of closing the valve of the sulfur hexafluoride cylinder after continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time, the preset time is 1 hour.
可选的，在所述使用六氟化硫红外成像仪检测变压器呼吸系统是否存在六氟化硫气体，根据检测结果判断变压器呼吸系统的密封性的步骤中，包括：Optionally, in the step of using a sulfur hexafluoride infrared imager to detect whether there is sulfur hexafluoride gas in the transformer breathing system, and judging the tightness of the transformer breathing system according to the detection results, including:
利用六氟化硫红外成像仪检查变压器呼吸系统各管路连接处、各阀门处是否存在六氟化硫气体，并打开储油柜两侧的排气阀门，检测排气阀门处是否存在六氟化硫气体。Use a sulfur hexafluoride infrared imager to check whether there is sulfur hexafluoride gas at the connection of the transformer breathing system and at each valve, and open the exhaust valves on both sides of the oil conservator to detect whether there is hexafluoride at the exhaust valve. sulfur gas.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门的步骤之后，还包括以下步骤：Optionally, after the step of continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time and then closing the valve of the sulfur hexafluoride cylinder, the following steps are also included:
将六氟化硫气瓶移动至与变压器达预设距离的区域，使用换气风扇对变压器所在区域的空气进行换气。Move the sulfur hexafluoride gas cylinder to an area with a preset distance from the transformer, and use a ventilation fan to ventilate the air in the area where the transformer is located.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门步骤之后，还包括：对储油柜呼吸管道与六氟化硫气瓶的接口进行密封。Optionally, after the step of continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time and then closing the valve of the sulfur hexafluoride gas cylinder, it also includes: The interface of the sulfur gas cylinder is sealed.
可选的，在所述将变压器的储油柜呼吸管道与六氟化硫气瓶相连接的步骤之后，还包括：在所述变压器的储油柜呼吸管道一侧设置高灵敏度压力表。Optionally, after the step of connecting the breathing pipe of the oil conservator of the transformer to the sulfur hexafluoride gas cylinder, it further includes: setting a high-sensitivity pressure gauge on one side of the breathing pipe of the oil conservator of the transformer.
采用本申请的技术方案的有益效果如下：The beneficial effects of adopting the technical solution of the present application are as follows:
由以上技术方案可知，本申请的基于红外成像技术的变压器呼吸系统检漏方法，包括：将变压器的储油柜呼吸管道与六氟化硫气瓶相连接；打开六氟化硫气瓶的阀门，通过储油柜呼吸管道向储油柜胶囊充入六氟化硫气体；打开储油柜两侧的排气阀门进行排气；继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门；使用六氟化硫红外成像仪检测变压器呼吸系统各部位是否存在六氟化硫气体，根据检测结果判断变压器呼吸系统的密封性。As can be seen from the above technical solutions, the method for detecting leaks in the breathing system of transformers based on infrared imaging technology of the present application includes: connecting the breathing pipeline of the oil conservator of the transformer with the sulfur hexafluoride gas cylinder; opening the valve of the sulfur hexafluoride gas cylinder , fill the oil conservator capsule with sulfur hexafluoride gas through the breathing pipe of the oil conservator; open the exhaust valves on both sides of the oil conservator to exhaust; continue to fill the oil conservator capsule with sulfur hexafluoride gas and keep the preset After the set time, close the valve of the sulfur hexafluoride gas cylinder; use a sulfur hexafluoride infrared imager to detect whether there is sulfur hexafluoride gas in each part of the transformer breathing system, and judge the tightness of the transformer breathing system according to the test results.
本申请中所使用的媒介为六氟化硫，六氟化硫(sulfur hexafluoride)是一种无色、无臭、无毒、不燃的稳定气体，六氟化硫对特定波段的红外光有很强烈的吸收特性。红外光谱技术的特点是灵敏度高、不受环境的影响和干扰，对环境的温度和湿度的变化所带来的检测误差很小。因此，本申请的方法具有检测精度高且直观快速的优点，同时，适用范围更广，适于行业内推广应用。The medium used in this application is sulfur hexafluoride. Sulfur hexafluoride (sulfur hexafluoride) is a colorless, odorless, non-toxic, non-combustible stable gas. Strong absorption properties. Infrared spectroscopy technology is characterized by high sensitivity, free from environmental influence and interference, and the detection error caused by changes in environmental temperature and humidity is very small. Therefore, the method of the present application has the advantages of high detection accuracy, intuition and speed, and at the same time, has a wider application range and is suitable for popularization and application in the industry.
附图说明Description of drawings
为了更清楚地说明本申请的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solution of the present application more clearly, the accompanying drawings that need to be used in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, on the premise of not paying creative work, there are also Additional figures can be derived from these figures.
图1为本申请实施例的流程框图；Fig. 1 is the block flow diagram of the embodiment of the present application;
图2为本申请实施例的应用场景示意图。FIG. 2 is a schematic diagram of an application scenario of an embodiment of the present application.
具体实施方式Detailed ways
下面将详细地对实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下实施例中描述的实施方式并不代表与本申请相一致的所有实施方式。仅是与权利要求书中所详述的、本申请的一些方面相一致的系统和方法的示例。The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.
参见图1以及图2，便于理解本申请的下述实施例。Referring to FIG. 1 and FIG. 2 , it is easy to understand the following embodiments of the present application.
本申请提供的一种基于红外成像技术的变压器呼吸系统检漏方法，包括以下步骤：A method for detecting leaks in a transformer breathing system based on infrared imaging technology provided by the application comprises the following steps:
S101,将变压器的储油柜呼吸管道与六氟化硫气瓶相连接；S101, connect the breathing pipe of the oil conservator of the transformer with the sulfur hexafluoride cylinder;
S102,打开六氟化硫气瓶的阀门，通过储油柜呼吸管道向储油柜胶囊充入六氟化硫气体；S102, open the valve of the sulfur hexafluoride gas cylinder, and fill the oil conservator capsule with sulfur hexafluoride gas through the breathing pipe of the oil conservator;
S103,打开储油柜两侧的排气阀门进行排气；S103, open the exhaust valves on both sides of the oil conservator to exhaust;
S104,继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门；S104, continue to fill the oil conservator capsule with sulfur hexafluoride gas and close the valve of the sulfur hexafluoride gas cylinder after maintaining the preset time;
S105,使用六氟化硫红外成像仪检测变压器呼吸系统各部位是否存在六氟化硫气体，根据检测结果判断变压器呼吸系统的密封性。S105, using a sulfur hexafluoride infrared imager to detect whether sulfur hexafluoride gas exists in various parts of the transformer breathing system, and judge the tightness of the transformer breathing system according to the detection results.
本实施例中，通过将变压器内储油柜胶囊中原有的气体排出干净，更加有利于提高本实施例的准确度；如果变压器呼吸系统中存在泄漏点，由于其内部被六氟化硫所充满，泄漏的气体即为六氟化硫而非其它气体，提高检测效率的同时增加了检测精度。In this embodiment, it is more beneficial to improve the accuracy of this embodiment by discharging the original gas in the capsule of the oil conservator in the transformer; , the leaked gas is sulfur hexafluoride instead of other gases, which improves the detection efficiency and detection accuracy at the same time.
可选的，在所述将变压器的储油柜呼吸管道与六氟化硫气瓶相连接的步骤中，包括：Optionally, in the step of connecting the breathing pipeline of the oil conservator of the transformer with the sulfur hexafluoride gas cylinder, including:
将变压器的储油柜呼吸管道通过阀门以及减压阀与六氟化硫气瓶相连接。Connect the breathing pipe of the oil conservator of the transformer to the sulfur hexafluoride cylinder through the valve and the pressure reducing valve.
本实施例中，通过设置阀门以及减压阀，可有效控制充入变压器呼吸系统内气体的压力，保障充气的均匀、稳定进行。In this embodiment, the pressure of the gas charged into the breathing system of the transformer can be effectively controlled by setting the valve and the pressure reducing valve, so as to ensure uniform and stable inflation.
可选的，在所述将变压器的储油柜呼吸管道与六氟化硫气瓶相连接的步骤中，所述六氟化硫气瓶中的六氟化硫气体的湿度不高于40.6μL/L，纯度不低于99.9％，空气含量不高于0.03％。Optionally, in the step of connecting the breathing pipeline of the oil conservator of the transformer to the sulfur hexafluoride gas cylinder, the humidity of the sulfur hexafluoride gas in the sulfur hexafluoride gas cylinder is not higher than 40.6 μL /L, the purity is not lower than 99.9%, and the air content is not higher than 0.03%.
本实施例中，对六氟化硫的湿度、纯度以及空气含量进行进一步限定，目的是为了得到一个更加准确的测量结果，上述指标能很好满足测量精度要求。In this embodiment, the humidity, purity and air content of sulfur hexafluoride are further limited in order to obtain a more accurate measurement result, and the above indicators can well meet the measurement accuracy requirements.
可选的，在所述打开储油柜两侧的排气阀门进行排气的步骤中，包括：Optionally, in the step of opening the exhaust valves on both sides of the oil conservator to exhaust, including:
打开储油柜两侧的排气阀门，当所述排气阀门流出变压器油时，关闭储油柜两侧的排气阀门。Open the exhaust valves on both sides of the oil conservator, and close the exhaust valves on both sides of the oil conservator when the transformer oil flows out from the exhaust valve.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门的步骤中，包括：Optionally, in the step of closing the valve of the sulfur hexafluoride cylinder after continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time, including:
当储油柜胶囊中充入的六氟化硫气体压力达到30kpa时，关闭六氟化硫气瓶的阀门并拧紧。When the pressure of the sulfur hexafluoride gas filled in the capsule of the oil conservator reaches 30kpa, close the valve of the sulfur hexafluoride gas cylinder and tighten it.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门的步骤中，所述预设时间为1小时。Optionally, in the step of closing the valve of the sulfur hexafluoride cylinder after continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time, the preset time is 1 hour.
可选的，在所述使用六氟化硫红外成像仪检测变压器呼吸系统是否存在六氟化硫气体，根据检测结果判断变压器呼吸系统的密封性的步骤中，包括：Optionally, in the step of using a sulfur hexafluoride infrared imager to detect whether there is sulfur hexafluoride gas in the transformer breathing system, and judging the tightness of the transformer breathing system according to the detection results, including:
利用六氟化硫红外成像仪检查变压器呼吸系统各管路连接处、各阀门处是否存在六氟化硫气体，并打开储油柜两侧的排气阀门，检测排气阀门处是否存在六氟化硫气体。Use a sulfur hexafluoride infrared imager to check whether there is sulfur hexafluoride gas at the connection of the transformer breathing system and at each valve, and open the exhaust valves on both sides of the oil conservator to detect whether there is hexafluoride at the exhaust valve. sulfur gas.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门的步骤之后，还包括以下步骤：Optionally, after the step of continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time and then closing the valve of the sulfur hexafluoride cylinder, the following steps are also included:
将六氟化硫气瓶移动至与变压器达预设距离的区域，使用换气风扇对变压器所在区域的空气进行换气。Move the sulfur hexafluoride gas cylinder to an area with a preset distance from the transformer, and use a ventilation fan to ventilate the air in the area where the transformer is located.
可选的，在所述继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门步骤之后，还包括：对储油柜呼吸管道与六氟化硫气瓶的接口进行密封。Optionally, after the step of continuing to fill the oil conservator capsule with sulfur hexafluoride gas for a preset time and then closing the valve of the sulfur hexafluoride gas cylinder, it also includes: The interface of the sulfur gas cylinder is sealed.
本实施例中，对储油柜呼吸管道与六氟化硫气瓶的接口进行密封，能防止接口处由于密封不严造成六氟化硫泄漏，进而影响测量结果，形成误判。In this embodiment, the interface between the breathing pipe of the oil conservator and the sulfur hexafluoride gas cylinder is sealed, which can prevent leakage of sulfur hexafluoride at the interface due to poor sealing, thereby affecting the measurement results and causing misjudgment.
可选的，在所述将变压器的储油柜呼吸管道与六氟化硫气瓶相连接的步骤之后，还包括：在所述变压器的储油柜呼吸管道一侧设置高灵敏度压力表。Optionally, after the step of connecting the breathing pipe of the oil conservator of the transformer to the sulfur hexafluoride gas cylinder, it further includes: setting a high-sensitivity pressure gauge on one side of the breathing pipe of the oil conservator of the transformer.
本实施例中，通过设置高灵敏度压力表，可进一步辅助测量是否存在六氟化硫气体的泄漏，确保检测的准确度。In this embodiment, by setting a high-sensitivity pressure gauge, it can further assist in measuring whether there is leakage of sulfur hexafluoride gas, so as to ensure the accuracy of detection.
本申请的基于红外成像技术的变压器呼吸系统检漏方法，包括：将变压器的储油柜呼吸管道与六氟化硫气瓶相连接；打开六氟化硫气瓶的阀门，通过储油柜呼吸管道向储油柜胶囊充入六氟化硫气体；打开储油柜两侧的排气阀门进行排气；继续往储油柜胶囊充入六氟化硫气体并保持预设时间后关闭六氟化硫气瓶的阀门；使用六氟化硫红外成像仪检测变压器呼吸系统各部位是否存在六氟化硫气体，根据检测结果判断变压器呼吸系统的密封性。The method for detecting leaks in the breathing system of a transformer based on infrared imaging technology of the present application includes: connecting the breathing pipe of the oil conservator of the transformer with the sulfur hexafluoride gas cylinder; opening the valve of the sulfur hexafluoride gas cylinder to breathe through the oil The pipeline fills the oil conservator capsule with sulfur hexafluoride gas; open the exhaust valves on both sides of the oil conservator to exhaust; continue to fill the oil conservator capsule with sulfur hexafluoride gas and keep the hexafluoride gas off after the preset time The valve of the sulfur gas cylinder; use the sulfur hexafluoride infrared imager to detect whether there is sulfur hexafluoride gas in each part of the transformer breathing system, and judge the tightness of the transformer breathing system according to the test results.
本申请中所使用的媒介为六氟化硫，六氟化硫(sulfur hexafluoride)是一种无色、无臭、无毒、不燃的稳定气体，六氟化硫对特定波段的红外光有很强烈的吸收特性。红外光谱技术的特点是灵敏度高、不受环境的影响和干扰，对环境的温度和湿度的变化所带来的检测误差很小。因此，本申请的方法具有检测精度高且快速便捷的优点，同时，适用范围更广，适于行业内推广应用。The medium used in this application is sulfur hexafluoride. Sulfur hexafluoride (sulfur hexafluoride) is a colorless, odorless, non-toxic, non-combustible stable gas. Strong absorption properties. Infrared spectroscopy technology is characterized by high sensitivity, free from environmental influence and interference, and the detection error caused by changes in environmental temperature and humidity is very small. Therefore, the method of the present application has the advantages of high detection accuracy, rapidity and convenience, and at the same time, has a wider application range and is suitable for popularization and application in the industry.
本申请提供的实施例之间的相似部分相互参见即可，以上提供的具体实施方式只是本申请总的构思下的几个示例，并不构成本申请保护范围的限定。对于本领域的技术人员而言，在不付出创造性劳动的前提下依据本申请方案所扩展出的任何其他实施方式都属于本申请的保护范围。The similar parts between the embodiments provided in the present application can be referred to each other, and the specific implementations provided above are only a few examples under the general concept of the present application, and do not constitute a limitation of the protection scope of the present application. For those skilled in the art, any other implementations expanded based on the proposal of the present application without creative work shall fall within the scope of protection of the present application.
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