加油站中油气回收装置是必不可少的装备，在这炎热的天气中，如果出现一点油气泄漏那都是危险至及啊，所以油气回收装置是一定要有的，并且还需要运行正常，对于未正常使用油气回收设备的也将面临罚款及改正。所以油气回收设备对加油站来说是非常重要设备。

The oil and gas recovery device is an essential equipment at gas stations. In this hot weather, any oil and gas leakage is extremely dangerous. Therefore, an oil and gas recovery device must be present and operate normally. Those who do not use the oil and gas recovery equipment properly will also face fines and corrections. So oil and gas recovery equipment is very important equipment for gas stations.

那么有了油气回收装置就需要配备油气回收监测系统，这是为了更好的监测油气回收的状况，不要出现有泄漏的事情发生。监测系统在加油站中也是要有的，它可以配合油气回收控制器的计算和分析加油站油气回收系统回气量、加油量和油气回收系统油罐及管路压力，实现各汽油加油枪气液比、油气回收系统密闭性、油气回收系统管路液阻等指标的实时监测。

So with an oil and gas recovery device, it is necessary to equip it with an oil and gas recovery monitoring system, in order to better monitor the status of oil and gas recovery and prevent any leakage from occurring. A monitoring system is also necessary in gas stations. It can be used in conjunction with the oil and gas recovery controller to calculate and analyze the gas recovery system's return volume, refueling volume, and oil tank and pipeline pressure, achieving real-time monitoring of various indicators such as the gas-liquid ratio of gasoline refueling guns, the airtightness of the oil and gas recovery system, and the liquid resistance of the oil and gas recovery system pipeline.

具体流程为在线监控系统在24h内，在线监控系统监测到埋地油罐压力大于油气处理装置开启压力的连续时间超过2h时，系统会预警，若连续多天处于预警状态会报警；同时加油站在线监控系统监测到任一条加油枪的有效气液比，如果当日数据异常系统会对该条加油枪预警，连续多天处于预警状态的话进而会报警，报警后系统会停止该枪的加油功能并存储、发送对应加油枪的状态、参数等信息；另外在线监控系统在卸油口附近、人工量油井等处安装浓度传感器或可燃气体报警器，以不大于30s的采样间隔监测加油站内的挥发性有机物，一旦监测浓度超标一定时间后就会报警。

The specific process is that within 24 hours, if the online monitoring system detects that the pressure of the buried oil tank is greater than the opening pressure of the oil and gas treatment device for more than 2 consecutive hours, the system will issue an alarm. If it remains in an alarm state for multiple consecutive days, an alarm will be triggered; At the same time, the online monitoring system of the gas station monitors the effective gas-liquid ratio of any fuel gun. If there is abnormal data on that day, the system will issue a warning for that fuel gun. If it is in a warning state for multiple consecutive days, it will then sound an alarm. After the alarm, the system will stop the refueling function of the gun and store and send the corresponding status, parameters, and other information of the fuel gun; In addition, the online monitoring system installs concentration sensors or combustible gas alarms near the oil discharge port, artificial oil wells, etc., to monitor the volatile organic compounds in the gas station at sampling intervals of no more than 30 seconds. Once the monitored concentration exceeds the standard for a certain period of time, an alarm will be triggered.

另外油气回收在线监测系统还可以监测三次油气回收装置的排放浓度以及卸油口的油气浓度，并提供相应的预报警功能。实现快速响应，报警提示现场工作人员第一时间处理。

In addition, the online monitoring system for oil and gas recovery can also monitor the emission concentration of the three oil and gas recovery devices and the oil and gas concentration at the oil discharge port, and provide corresponding pre alarm functions. Realize rapid response and prompt on-site staff to handle alarms in a timely manner.