在环保意识日益增强的今天，加油站的油气排放问题备受关注。加油站三次油气回收处理装置，作为油气减排的关键设备，正发挥着不可或缺的作用。今天，就带大家深入了解一下这个环保利器。

　　In today's increasingly environmentally conscious society, the issue of oil and gas emissions from gas stations has attracted much attention. The tertiary oil and gas recovery and treatment device at gas stations, as a key equipment for reducing oil and gas emissions, is playing an indispensable role. Today, let's delve into this environmental tool.

　　一、三次油气回收，为何至关重要？

　　1、 Why is it crucial to recycle oil and gas three times

　　加油站在卸油、储油和加油过程中，会有大量油气挥发到大气中。这些油气不仅造成能源浪费，还会污染空气，危害人体健康，甚至增加火灾爆炸风险。一次、二次油气回收虽然能解决部分问题，但仍有残留油气需要处理，三次油气回收处理装置应运而生，成为环保“最后一公里”的关键。

　　During the unloading, storage, and refueling processes at gas stations, a large amount of oil and gas will evaporate into the atmosphere. These oil and gas not only cause energy waste, but also pollute the air, endanger human health, and even increase the risk of fire and explosion. Although primary and secondary oil and gas recovery can solve some problems, there are still residual oil and gas that need to be treated. The emergence of tertiary oil and gas recovery and treatment devices has become the key to the "last mile" of environmental protection.

　　二、工作原理

　　2、 Working principle

　　加油站的三次油气回收装置主要用于处理油罐车卸油和汽车加油过程中挥发的油气，以减少环境污染和能源浪费。其工作原理主要分为以下几个步骤：一次油气回收（卸油阶段）当油罐车向地下储油罐卸油时，油罐中的液态油进入储油罐，同时将储油罐中的油气（挥发性有机物，VOCs）通过密闭管道回收到油罐车中。这样避免了油气直接排放到大气中，同时油罐车可以将回收的油气运回油库进行处理。二次油气回收（加油阶段）在汽车加油时，加油枪通过真空泵或压力平衡系统，将汽车油箱中挥发的油气抽吸回加油站的储油罐中。这一过程通常采用“气液比”控制（如1:1），确保油气被有效回收。三次油气回收（油气后处理阶段）经过前两个阶段，储油罐中的油气浓度可能逐渐升高，当压力达到一定阈值时，三次油气回收系统启动。

　　The tertiary oil and gas recovery device at gas stations is mainly used to process the volatile oil and gas during the unloading and refueling process of oil tankers, in order to reduce environmental pollution and energy waste. Its working principle mainly consists of the following steps: primary oil and gas recovery (unloading stage). When the oil tanker unloads oil from the underground storage tank, the liquid oil in the tank enters the storage tank, and at the same time, the oil and gas (volatile organic compounds, VOCs) in the storage tank are recovered into the tanker through a closed pipeline. This avoids direct emissions of oil and gas into the atmosphere, while oil tankers can transport the recovered oil and gas back to the oil depot for processing. Secondary oil and gas recovery (refueling stage): During the refueling process of a car, the refueling gun uses a vacuum pump or pressure balancing system to draw the evaporated oil and gas from the car's fuel tank back into the storage tank at the gas station. This process is usually controlled by a "gas-liquid ratio" (such as 1:1) to ensure effective recovery of oil and gas. After the first two stages of the three-stage oil and gas recovery (oil and gas post-treatment stage), the concentration of oil and gas in the storage tank may gradually increase. When the pressure reaches a certain threshold, the three-stage oil and gas recovery system will start.

　　三、显著优势看得见

　　3、 Significant advantages visible

　　环保效益显著：有效减少加油站油气排放，降低挥发性有机物对大气的污染，助力改善空气质量，守护蓝天白云。安全性能提升：降低加油站内油气浓度，消除火灾和爆炸隐患，为工作人员和周边居民营造更安全的环境。经济效益可观：回收的油气重新转化为汽油，实现资源再利用，降低油品损耗，为加油站带来实实在在的经济收益 。节能降耗出色：采用先进技术，能耗低，运行成本低，符合可持续发展理念。

　　Significant environmental benefits: effectively reducing gas station emissions, lowering the pollution of volatile organic compounds to the atmosphere, helping to improve air quality, and safeguarding blue skies and white clouds. Safety performance improvement: Reduce the concentration of oil and gas in gas stations, eliminate fire and explosion hazards, and create a safer environment for workers and surrounding residents. The economic benefits are considerable: the recovered oil and gas are converted back into gasoline, realizing resource reuse, reducing oil loss, and bringing tangible economic benefits to gas stations. Excellent energy conservation and consumption reduction: adopting advanced technology, low energy consumption, low operating costs, in line with the concept of sustainable development.

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