必看！三次油氣回收設備核心解析：什么是油氣回收？工作原理一文讀懂Must see! Core analysis of triple oil and gas recovery equipment: What is oil and gas recovery? Understanding the working principle in an article在石油倉儲、零售行業，油氣泄漏不僅造成能源浪費，更會污染大氣環境、存在安全隱患，而三次油氣回收設備作為管控VOCs（揮發性有機化合物）排放的核心環保設備，已成為油庫、加油站合規運營的必備設施。據行業數據顯示，我國每年因油氣泄漏造成的油品損耗超120萬噸，而優良三次油氣回收設備可實現95%以上的油氣回收率，既減少能源浪費，又能幫助企業規避環保處罰。很多從業者對油氣回收的定義、三次油氣回收設備的工作原理認知模糊，今天，結合實操細節，用通俗且專業的語言，多維度解析油氣回收的核心概念與三次油氣回收設備的工作原理，助力從業者合理了解設備、規范操作。

　　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.

　　首先明確核心定義：油氣回收，簡單來說，就是將石油儲存、裝卸、加注過程中，因油品揮發產生的油氣，通過專業設備收集、處理，將氣態油氣轉化為液態油品，實現回收再利用的過程。其核心目的是“控排放、減損耗、保安全”，既契合《加油站大氣污染物排放標準》（GB20952-2020）中VOCs排放限值要求，也能降低油品損耗，提升企業經濟效益，同時減少油氣泄漏引發的火災、爆炸等安全隱患。

　　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.

　　三次油氣回收設備，是油氣回收系統的核心組成部分，主要應用于油庫、大型加油站等場景，針對油品裝卸過程中產生的油氣進行回收處理，也是目前行業內非常主流、非常出色的油氣回收解決方案。與一次、二次油氣回收設備相比，三次油氣回收設備更側重油庫端的油氣深度處理，回收效率更高、排放更達標，據實測，優良三次油氣回收設備的油氣回收率可達99%以上，排放濃度遠低于國家規定的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 ?.

　　了解了油氣回收的定義，再詳細拆解三次油氣回收設備的工作原理，整個過程清晰易懂，核心分為“收集-輸送-處理-回收”四個步驟，每一步都環環相扣，確保油氣出色回收、達標排放。而油氣回收接頭，作為設備的關鍵連接部件，是整個回收流程的“起點”，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，油氣產生與收集。油氣回收接頭會合理連接到油庫的油氣回收裝置，當油罐車向油庫罐體加注油品時，隨著液態油品持續進入罐體，罐體內的空氣會被油品擠壓，進而攜帶揮發產生的油氣一起排出罐體。此時，三次油氣回收系統會自動啟動，進入油氣收集狀態，確保罐體內排出的油氣不泄漏、不擴散，全部進入回收流程。這一步的核心是密封連接，油氣回收接頭的密封性能直接影響回收效率，若接頭密封不嚴，會導致油氣泄漏，降低回收效果，甚至引發安全隱患。

　　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，油氣輸送。罐體內排出的油氣，會通過專用密封管道，被合理輸送到油庫的三次油氣回收設備中。管道采用防腐蝕、防泄漏設計，避免油氣在輸送過程中損耗或泄漏，同時管道布局經過科學規劃，確保油氣輸送順暢，減少阻力，提升輸送效率。據行業規范要求，油氣輸送管道的泄漏檢測合格率需達到100%，這也是保障三次油氣回收設備正常運行的基礎。

　　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，油氣深度處理。這是三次油氣回收設備的核心環節，輸送至設備內的油氣，會通過“冷凝+吸附”的組合工藝，完成氣態到液態的轉化。首先通過冷凝工藝，將油氣降溫至零下40℃左右，使大部分氣態油氣冷凝成液態油品；對于未完全冷凝的少量殘余油氣，再通過吸附工藝，利用專用吸附材料（如活性炭、分子篩）將其吸附，進一步去除油氣中的揮發性成分，確保處理后的氣體達標排放。

　　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，油氣回收再利用。經冷凝、吸附處理后，轉化后的液態油品會被收集起來，經過過濾、提純等簡單處理，重新投入到生產、銷售環節，實現能源的循環利用；而處理后的廢氣，因VOCs含量出色低，可直接排放，完全符合環保標準。這一過程既減少了油品損耗，又實現了環保達標，真正實現了“環保+效益”的雙贏。

　　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，三次油氣回收設備的工作效率，不僅取決于設備本身的品質，還與油氣回收接頭的密封性、管道的暢通性、處理工藝的穩定性密切相關。據行業調研顯示，規范操作、定期維護的三次油氣回收設備，使用壽命可達8-10年，油氣回收效率長期保持在95%以上，每年可幫助油庫減少30%以上的油品損耗。

　　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.

　　綜上，油氣回收是石油行業實現環保合規、減少能源浪費的重要舉措，而三次油氣回收設備則是實現這一目標的核心支撐。其工作原理圍繞“收集-輸送-處理-回收”展開，借助油氣回收接頭的連接、管道的輸送，以及冷凝、吸附的組合工藝，將氣態油氣轉化為液態油品，實現回收再利用。對于油庫、加油站等從業者而言，清晰了解油氣回收的定義與三次油氣回收設備的工作原理，既能規范設備操作，也能更好地發揮設備效能，助力企業實現合規、出色、綠色運營。

　　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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