必看！三次油气回收设备核心解析：什么是油气回收？工作原理一文读懂Must see! Core analysis of triple oil and gas recovery equipment: What is oil and gas recovery? Understanding the working principle in an article在石油仓储、零售行业，油气泄漏不仅造成能源浪费，更会污染大气环境、存在安全隐患，而三次油气回收设备作为管控VOCs（挥发性有机化合物）排放的核心环保设备，已成为油库、加油站合规运营的必备设施。据行业数据显示，我国每年因油气泄漏造成的油品损耗超120万吨，而优质三次油气回收设备可实现95%以上的油气回收率，既减少能源浪费，又能帮助企业规避环保处罚。很多从业者对油气回收的定义、三次油气回收设备的工作原理认知模糊，今天，结合实操细节，用通俗且专业的语言，全面解析油气回收的核心概念与三次油气回收设备的工作原理，助力从业者精准了解设备、规范操作。

　　In the petroleum storage and retail industry, oil and gas leaks not only cause energy waste, but also pollute the atmospheric environment and pose safety hazards. As the core environmental protection equipment for controlling VOCs (volatile organic compounds) emissions, tertiary oil and gas recovery equipment has become an essential facility for compliant operation of oil depots and gas stations. According to industry data, China's annual oil loss caused by oil and gas leaks exceeds 1.2 million tons, and high-quality tertiary oil and gas recovery equipment can achieve an oil and gas recovery rate of over 95%, reducing energy waste and helping enterprises avoid environmental penalties. Many practitioners have a vague understanding of the definition of oil and gas recovery and the working principle of tertiary oil and gas recovery equipment. Today, combined with practical details, using popular and professional language, we will comprehensively analyze the core concepts of oil and gas recovery and the working principle of tertiary oil and gas recovery equipment, helping practitioners to accurately understand the equipment and standardize operations.

　　首先明确核心定义：油气回收，简单来说，就是将石油储存、装卸、加注过程中，因油品挥发产生的油气，通过专业设备收集、处理，将气态油气转化为液态油品，实现回收再利用的过程。其核心目的是“控排放、减损耗、保安全”，既契合《加油站大气污染物排放标准》（GB20952-2020）中VOCs排放限值要求，也能降低油品损耗，提升企业经济效益，同时减少油气泄漏引发的火灾、爆炸等安全隐患。

　　Firstly, clarify the core definition: oil and gas recovery. Simply put, it refers to the process of collecting and processing the oil and gas generated by the volatilization of oil products during the storage, loading, unloading, and refueling of petroleum through professional equipment, converting gaseous oil and gas into liquid oil products, and achieving the process of recycling and reuse. Its core purpose is to "control emissions, reduce energy consumption, and ensure safety", which not only meets the VOCs emission limit requirements in the "Gas Station Air Pollutant Emission Standards" (GB20952-2020), but also reduces oil consumption, improves enterprise economic benefits, and reduces safety hazards such as fires and explosions caused by oil and gas leaks.

　　三次油气回收设备，是油气回收系统的核心组成部分，主要应用于油库、大型加油站等场景，针对油品装卸过程中产生的油气进行回收处理，也是目前行业内最主流、最高效的油气回收解决方案。与一次、二次油气回收设备相比，三次油气回收设备更侧重油库端的油气深度处理，回收效率更高、排放更达标，据实测，优质三次油气回收设备的油气回收率可达99%以上，排放浓度远低于国家规定的10g/m?限值。

　　The tertiary oil and gas recovery equipment is the core component of the oil and gas recovery system, mainly used in oil depots, large gas stations and other scenarios. It recovers and processes the oil and gas generated during the loading and unloading process of oil products, and is currently the most mainstream and efficient oil and gas recovery solution in the industry. Compared with primary and secondary oil and gas recovery equipment, tertiary oil and gas recovery equipment is more focused on deep treatment of oil and gas at the heavy oil storage end, with higher recovery efficiency and higher emission standards. According to actual measurements, the oil and gas recovery rate of high-quality tertiary oil and gas recovery equipment can reach over 99%, and the emission concentration is far below the national limit of 10g/m ?.

　　了解了油气回收的定义，再详细拆解三次油气回收设备的工作原理，整个过程清晰易懂，核心分为“收集-输送-处理-回收”四个步骤，每一步都环环相扣，确保油气高效回收、达标排放。而油气回收接头，作为设备的关键连接部件，是整个回收流程的“起点”，不可或缺。

　　After understanding the definition of oil and gas recovery, and dismantling the working principle of the three oil and gas recovery equipment in detail, the entire process is clear and easy to understand. The core is divided into four steps: "collection, transportation, treatment, and recovery", each step is interrelated to ensure efficient oil and gas recovery and standard emissions. The oil and gas recovery joint, as a key connecting component of the equipment, is the "starting point" of the entire recovery process and indispensable.

　　第一步，油气产生与收集。油气回收接头会精准连接到油库的油气回收装置，当油罐车向油库罐体加注油品时，随着液态油品持续进入罐体，罐体内的空气会被油品挤压，进而携带挥发产生的油气一起排出罐体。此时，三次油气回收系统会自动启动，进入油气收集状态，确保罐体内排出的油气不泄漏、不扩散，全部进入回收流程。这一步的核心是密封连接，油气回收接头的密封性能直接影响回收效率，若接头密封不严，会导致油气泄漏，降低回收效果，甚至引发安全隐患。

　　The first step is the generation and collection of oil and gas. The oil and gas recovery joint will be precisely connected to the oil and gas recovery device of the oil depot. When the oil tanker fills the tank of the oil depot with oil, as the liquid oil continues to enter the tank, the air inside the tank will be squeezed by the oil, and then carry the evaporated oil and gas out of the tank. At this point, the tertiary oil and gas recovery system will automatically start and enter the oil and gas collection state, ensuring that the oil and gas discharged from the tank do not leak or spread, and all will enter the recovery process. The core of this step is the sealed connection. The sealing performance of the oil and gas recovery joint directly affects the recovery efficiency. If the joint is not sealed tightly, it can lead to oil and gas leakage, reduce the recovery effect, and even cause safety hazards.

　　第二步，油气输送。罐体内排出的油气，会通过专用密封管道，被精准输送到油库的三次油气回收设备中。管道采用防腐蚀、防泄漏设计，避免油气在输送过程中损耗或泄漏，同时管道布局经过科学规划，确保油气输送顺畅，减少阻力，提升输送效率。据行业规范要求，油气输送管道的泄漏检测合格率需达到100%，这也是保障三次油气回收设备正常运行的基础。

　　The second step is oil and gas transportation. The oil and gas discharged from the tank will be accurately transported to the tertiary oil and gas recovery equipment in the oil depot through a dedicated sealed pipeline. The pipeline adopts anti-corrosion and leak proof design to avoid loss or leakage of oil and gas during transportation. At the same time, the pipeline layout is scientifically planned to ensure smooth oil and gas transportation, reduce resistance, and improve transportation efficiency. According to industry standards, the leakage detection qualification rate of oil and gas transmission pipelines must reach 100%, which is also the basis for ensuring the normal operation of the tertiary oil and gas recovery equipment.

　　第三步，油气深度处理。这是三次油气回收设备的核心环节，输送至设备内的油气，会通过“冷凝+吸附”的组合工艺，完成气态到液态的转化。首先通过冷凝工艺，将油气降温至零下40℃左右，使大部分气态油气冷凝成液态油品；对于未完全冷凝的少量残余油气，再通过吸附工艺，利用专用吸附材料（如活性炭、分子筛）将其吸附，进一步去除油气中的挥发性成分，确保处理后的气体达标排放。

　　The third step is deep processing of oil and gas. This is the core link of the three-stage oil and gas recovery equipment. The oil and gas transported to the equipment will be converted from gas to liquid through a combination process of "condensation+adsorption". Firstly, through the condensation process, the oil and gas are cooled to around minus 40 ℃, causing most of the gaseous oil and gas to condense into liquid oil products; For a small amount of residual oil and gas that has not been fully condensed, it is further removed from the oil and gas by adsorption technology using specialized adsorption materials such as activated carbon and molecular sieves to ensure that the treated gas meets emission standards.

　　第四步，油气回收再利用。经冷凝、吸附处理后，转化后的液态油品会被收集起来，经过过滤、提纯等简单处理，重新投入到生产、销售环节，实现能源的循环利用；而处理后的废气，因VOCs含量极低，可直接排放，完全符合环保标准。这一过程既减少了油品损耗，又实现了环保达标，真正实现了“环保+效益”的双赢。

　　The fourth step is to recycle and reuse oil and gas. After condensation and adsorption treatment, the converted liquid oil will be collected, filtered, purified and other simple treatments, and then reused in the production and sales process to achieve energy recycling; The treated exhaust gas, due to its extremely low VOC content, can be directly discharged and fully meets environmental standards. This process not only reduces oil loss, but also achieves environmental standards, truly realizing a win-win situation of "environmental protection+benefits".

　　需要注意的是，三次油气回收设备的工作效率，不仅取决于设备本身的品质，还与油气回收接头的密封性、管道的畅通性、处理工艺的稳定性密切相关。据行业调研显示，规范操作、定期维护的三次油气回收设备，使用寿命可达8-10年，油气回收效率长期保持在95%以上，每年可帮助油库减少30%以上的油品损耗。

　　It should be noted that the working efficiency of the tertiary oil and gas recovery equipment depends not only on the quality of the equipment itself, but also closely related to the sealing of the oil and gas recovery joints, the smoothness of the pipelines, and the stability of the treatment process. According to industry research, the three time oil and gas recovery equipment with standardized operation and regular maintenance can have a service life of 8-10 years, and the oil and gas recovery efficiency can be maintained at over 95% for a long time. It can help oil depots reduce oil loss by more than 30% annually.

　　综上，油气回收是石油行业实现环保合规、减少能源浪费的重要举措，而三次油气回收设备则是实现这一目标的核心支撑。其工作原理围绕“收集-输送-处理-回收”展开，借助油气回收接头的连接、管道的输送，以及冷凝、吸附的组合工艺，将气态油气转化为液态油品，实现回收再利用。对于油库、加油站等从业者而言，清晰了解油气回收的定义与三次油气回收设备的工作原理，既能规范设备操作，也能更好地发挥设备效能，助力企业实现合规、高效、绿色运营。

　　Overall, oil and gas recovery is an important measure for the petroleum industry to achieve environmental compliance and reduce energy waste, and tertiary oil and gas recovery equipment is the core support for achieving this goal. Its working principle revolves around "collection transportation processing recovery", using the connection of oil and gas recovery joints, pipeline transportation, and a combination of condensation and adsorption processes to convert gaseous oil and gas into liquid oil products for recycling and reuse. For practitioners such as oil depots and gas stations, a clear understanding of the definition of oil and gas recovery and the working principle of tertiary oil and gas recovery equipment can not only standardize equipment operation, but also better utilize equipment efficiency, helping enterprises achieve compliant, efficient, and green operations.

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