很多站长只盯加油机油枪和气液比，却忽略了埋地罐自己会“喘气”：白天升温、卸油增压，罐内压力往上顶，这叫“大小呼吸”。油气顺着呼吸阀跑掉，既是真金白银的汽油损耗，也是环保督查重点。

Many webmasters only focus on the fuel gun and gas-liquid ratio of the refueling machine, but ignore the fact that the buried tank itself will "breathe": during the day, when the temperature rises, the oil is unloaded and pressurized, and the pressure inside the tank rises, this is called "breathing big and small". The escape of oil and gas through the breathing valve is not only a real waste of gasoline, but also a key focus of environmental inspection.

三次油气回收，管的就是这一步。罐压到设定值（通常+150Pa左右），设备自动启动，把呼出的油气冷凝成液体回罐，剩余轻组分再经吸附或膜分离兜底，尾气达标排放。

Three oil and gas recovery processes, this is the step in charge. When the tank pressure reaches the set value (usually around+150Pa), the equipment automatically starts, condensing the exhaled oil and gas into liquid and returning it to the tank. The remaining light components are then adsorbed or membrane separated to the bottom, and the exhaust gas meets the emission standards.

选设备看四条硬指标：

Choose a device based on four hard indicators:

工艺别裸奔：单冷凝能耗高，单吸附要换炭，“冷凝+吸附”或“深冷+膜”更稳，排放浓度按GB20952-2020控在≤25g/m?，严标地区按≤10g/m?留余量。

Don't run naked in the process: Single cooling condensation consumes high energy, single adsorption requires carbon replacement, "condensation+adsorption" or "deep cooling+membrane" is more stable, and the emission concentration is controlled at ≤ 25g/m according to GB20952-2020? Is it strictly regulated to ≤ 10g/m in areas with strict standards? Leave a margin.

防爆是底线：整机能提供防爆合格证，电器元件Ex认证齐全，带可燃报警和超压保护。

Explosion proof is the bottom line: the entire machine can provide an explosion-proof certificate, with complete Ex certification for electrical components, and equipped with combustible alarm and overpressure protection.

自动联锁：跟罐压、液位联锁，自动启停，能接在线监测，数据可上传环保平台。

Automatic interlocking: interlocked with tank pressure and liquid level, automatically starts and stops, can be connected to online monitoring, and data can be uploaded to the environmental protection platform.

算总账：别只比裸机价，看制冷耗电、活性炭更换周期、冷量回收、维护工时。深冷模块带蓄冷，长期运行更省。

Calculate the overall price: Don't just compare the bare machine price, look at the cooling power consumption, activated carbon replacement cycle, cooling capacity recovery, and maintenance hours. The cryogenic module is equipped with cold storage, making long-term operation more cost-effective.

运维上记住：设备常开不关机，PV阀通路正常，阻火器端阀门按规程闭；卸油过程不能断电；每月查一次密封、液阻和回收量台账。

Remember in operation and maintenance: the equipment is always on and not off, the PV valve path is normal, and the flame arrester end valve is closed according to regulations; The unloading process cannot be powered off; Check the sealing, liquid resistance, and recycling volume ledger once a month.

油气不落地，排放稳达标，三次回收装对，一年省下的油钱比设备利息还多。

Oil and gas do not land, emissions are stable and meet standards, three times of recycling and installation are correct, saving more oil money than equipment interest in one year.

本文由加油站三次油气回收设备友情奉献.更多有关的知识请点击:http://www.kosman2018.com我们将会对您提出的疑问进行详细的解答，欢迎您登录网站留言.

This article is a friendly contribution from the gas station's three times oil and gas recovery equipment For more information, please click: http://www.kosman2018.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message