Whether the device can achieve the desired effect stably for a long time depends not only on the equipment itself, but also on the completeness of daily operation records. The daily operation records and compliance verification services we provide help users to record the operation data completely and accurately, and regularly check the relationship between the actual state of the device and the emission requirements, so that the device is in a traceable and judgable state.
Many problems of the recovery device do not appear suddenly: frost on the heat exchange surface, liquid accumulation in the pipeline, and decrease in fan efficiency. These changes have precursors in the data. When the record is complete, the abnormality can be seen from the trend and handled in advance; when the record is missing, it is often found that the export concentration exceeds the standard, and the processing cost is much higher.
In addition, the operation record is also the basis for explaining the state of the device, and there is evidence to follow when the device situation needs to be explained.
Another function of recording is to solidify experience. The settings of the same device are different in different seasons and under different loads. If these settings are only left in the hands of the operator, the personnel will have to explore again after the change. Write records and procedures, and the operation mode of the device can continue.
According to the practice in our service practice, the records are divided into three levels: the equipment layer records the temperature, pressure difference and operating status of each section; The process layer records the treatment air volume, recovery liquid volume and concentration detection value. The management layer records the time of cleaning, overhaul and replacement of consumables. Only when the three levels are recorded can the device status be linked together.
The frequency of recording is distinguished according to the importance of parameters: key parameters such as temperature and pressure difference are recorded according to shifts, the amount and concentration of recovered liquid are recorded according to batches or days, and cleaning and maintenance are recorded according to times. Recording all at the same frequency not only increases the workload, but also makes the record a mere formality.
Verification is to match the recorded data with the actual state, focusing on whether the data is representative and whether the recorded items are sufficient to support the judgment.
The timing of the verification is staggered with the production rhythm, the data verification can be completed remotely, and the on-site verification is arranged at the window of maintenance or production change, so as not to occupy the peak hours as far as possible.
| Level | Record Item | Purpose |
|---|---|---|
| Equipment level | Temperature, differential pressure and operating status of each section | Judging the state of heat transfer and tube resistance |
| Process layer | Air volume, recovered liquid volume and concentration | Conversion recovery efficiency and emission level |
| Management | Cleaning, maintenance and consumable replacement time | Contrast with efficiency changes |
| Verification cycle | Determined by operating strength | Form comparable data series |
| Deviation handling | Give recommendations by nature | Each item falls to the next executable step |
| Phase Summary | Summary by quarter or year | As the basis for operation management summary |
When the deviation is found in the verification, it shall be classified and treated according to the nature of the deviation: the on-the-spot adjustment method belongs to the operation adjustment; The treatment suggestion and cycle are given for local fault or component aging; If the design condition is inconsistent with the actual situation, the direction that needs further evaluation shall be explained. Each item gives the next executable step, not stopping at the conclusion.
If the same kind of deviation occurs repeatedly in multiple sets of records, it may be a problem in the operation procedure or instrument configuration, not just a single operation deviation, which will be put forward as improvement suggestions.
Your own records are the basis. The role of verification is to match the record with the actual state, determine whether the data is representative, whether the record items are sufficient to support the judgment, and usually find some gaps in recording habits.
The combination of the two. Daily trend check according to the recorded data, find deviation or arrange on-site check according to cycle, the focus of on-site check is whether the instrument status corresponds to the recorded point.
The report provides the data and judgment of the actual operation status of the device, which can be used as the process record of operation management for internal management, maintenance arrangement and external explanation of the device.
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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