How to set up remote monitoring for oil and gas recovery equipment? Direct answer: Follow the three-step process of "setting the collection parameters first, then setting the alarm threshold, and finally configuring the linkage disposal" - collect key parameters such as oil and gas concentration, temperature, pressure, vacuum degree, and adsorbent saturation. The threshold is set according to the equipment nameplate and historical operating curve. If it exceeds the threshold, an automatic alarm will be triggered and the signal will be pushed to the mobile phone or computer end, while linkage start stop or protection actions will be taken. The criteria for judging are whether anomalies can be detected and dealt with in a timely manner, rather than having fancy monitoring interfaces. This article explains the three steps of setting the caliber clearly. Many sites have spent a lot of money on monitoring, but only use it to "see data", and the alarm and linkage are not well matched. When problems really arise, they are still discovered through manual inspections, which is equivalent to only doing half of it.
The value of monitoring lies in 'knowing early', so the collection items should be aimed at early signals of anomalies. The concentration category is based on the intake and emission concentration, the temperature category is based on the temperature of each section of the equipment and the refrigeration temperature, the pressure category is based on the system pressure and vacuum degree, and the status category is based on the saturation of the adsorbent and the operating current of the pump and fan. These categories cover more than 90% of early anomalies: slow concentration climb, temperature deviation, vacuum degree drop, adsorption approaching saturation. Looking at any one of them alone is one-sided, and only by combining them can we locate them. Don't be greedy for too many collection points, just list those directly related to compliance, safety, and energy consumption. Too many points can drown out the signal.
The threshold is determined based on two criteria: leaving a margin between the emission concentration reference standard and the detection value, setting upper and lower limits for the temperature reference operating range, setting a deviation zone for the vacuum degree reference nameplate value, and setting a warning line for saturation based on replacement experience. The pitfalls of setting thresholds are simply copying other people's parameters or fixing them all at once: each station has different operating conditions, and copying them can easily lead to false alarms or omissions; If not calibrated for a long time, the threshold will become inaccurate after the equipment ages. The method is to collect normal data for one or two weeks after commissioning as a baseline, then set a threshold based on the fluctuation of the baseline, and regularly review it with the equipment status.
Linkage enables monitoring to be upgraded from "alarm" to "disposal": after the threshold is triggered, notifications can be automatically pushed, backup devices can be started, or protection shutdown can be executed, reducing manual response time. Linkage should be classified into levels - warning levels should first push reminders, and severe levels should be linked to shutdown or bypass to avoid misoperation affecting production. The linkage object should be checked clearly: which type of abnormality is linked to which device, and who is responsible for confirmation, should be written into the regulations, so as not to let the alarm go off and no one claims it. After the linkage logic is modified, a test should be conducted to confirm that the link from triggering to action is connected, otherwise it will not sound normally and will not take action in case of accidents.
Not recording data is equivalent to collecting in vain: daily running reports, abnormal events, and disposal actions are archived one by one to form traceable records. Trends are more useful than single point values - by plotting concentration, temperature, vacuum degree, and saturation as curves, slow drift is visible at a glance, and when an alarm is triggered, it is often too late. Recording can also support maintenance plans: the data will indicate which equipment has a high frequency of abnormalities and which types of parameters repeatedly exceed limits, and which ones should be checked first. The ledger is also a basis for inspection. If the operating status cannot be clearly stated, it is equivalent to not being monitored.
| Segment | key action | error-prone points | The right way to do it |
|---|---|---|---|
| Acquisition Parameters | Leda standard safety energy consumption related items | Too many dots flood the signal | Align with early abnormal signals |
| alarm threshold | Baseline floating margin | Copy others blindly or die for it | Regular review of the operational baseline |
| Linkage logic | Two levels of severe warning | Alarm unclaimed | Clarify the responsible person and actions |
| data recording | Daily abnormal event ledger | Not recording is equivalent to white picking | Trends are more useful than single point values |
| Maintenance review | Regularly check according to the status | Long term lack of calibration and accuracy | Update by device status |
Floating according to the baseline: Collect normal data for one or two weeks after commissioning, leave a margin at the upper and lower limits of the baseline to set a threshold, and regularly review with the equipment status. Do not copy other people's parameters or fix them at once. The working conditions of each station are different.
Hierarchical processing: Set clear threats to standard safety as severe level for coordinated disposal, and set occasional fluctuations as warning level for reminder only, reducing ineffective disturbance; At the same time, check if the threshold is too tight, which may cause false alarms.
Requirement: Monitoring covers the main parameters but cannot replace on-site observation and touch. Abnormal monitoring such as sealing, abnormal noise, and leakage points may not be captured. Inspection and monitoring complement each other rather than replace each other, and their cooperation is necessary for stability.
This article by LuoyangWohong PetrochemicalEquipment Co., Ltd. arranges that the company provides design, manufacturing and operation and maintenance services for condensation recovery, membrane separation recovery and complete solvent recovery devices for chemical and pharmaceutical enterprises. If you need process evaluation or scheme configuration, please contact and exchange.
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