Most of the solvent recovery devices are built in a corner of the workshop and are cared for daily, but the depth of care depends on the experience of the unit. The same data is there, experienced people can see trends, inexperienced people only see numbers. The idea of remote monitoring and operation data service is to regularly hand over the operation data of the device to the service side for analysis, and the problem is found before it turns into a fault.
This set of ideas is especially useful for teams and groups that have just taken over the management of the equipment: some people help to interpret the data, there is a basis for judgment, and there are corresponding discussion channels for operational doubts.
One is the problem of trend discovery: the daily fluctuation of pressure difference, temperature and recovered liquid volume is not large, and the trend of slow drift for several weeks is difficult to detect by the frequency of on-site inspection, which can be seen by weekly analysis. The second is to speed up the response: the alarm reported by the device shall be judged remotely at the first level, and the judgment result shall guide the on-site disposal and reduce the tossing and turning. Third, spare parts forecast: the replacement cycle of consumables and wearing parts is calculated from the data and stocked in advance.
Remote monitoring does not replace the scene, it arranges the timing and content of the arrival of the scene more accurately. For units with multiple sets of devices, the data of several sets of devices can be seen together, and the difference between load distribution and operation style can be compared, which can provide reference for scheduling arrangement.
Take points according to the key parts of the device: inlet and outlet temperature and pressure difference of each section, operating status of compressor and pump, recovery liquid volume and storage tank level, alarm record. The data is exported through the communication interface of the device control system, and the frequency is automatically summarized by hour or shift every day. Take points should be fine but not too many, and the coverage state can be judged enough. Too many points dilute the key point instead.
The security and stability of the data channel is the premise: when the communication is interrupted, the device will record the data as usual, and the channel will be retransmitted after the channel is restored. No data will be lost due to communication problems.
The value of briefing and analysis lies in the fact that "some people see and some people return". The monthly regular analysis meeting is regularly attended, and the data service can be truly closed only after the implementation of last month's recommendations is repeated. Only the report will be sent without follow-up, and the data will be slowly returned to display.
Run a weekly briefing to mark the week's anomalies and recommendations; run a monthly analysis to put trends, events and recommendations together. When problems that need to be dealt with on site are found, the priority and suggested contents of the scene are given, and the arrangement is negotiated with the user. Special analysis shall be added before season change and maintenance to provide basis for parameter adjustment and maintenance list. Emergency exceptions are not subject to frequency constraints, and immediate notification is determined to be completed.
| Service Item | Frequency | Deliverables |
|---|---|---|
| Data Collection Summary | Per day | Automatic summary of operation data at each point |
| Operational Briefing | Every week | Annotations and Handling Suggestions for Abnormal Points |
| operation analysis | Monthly | Trend, Event and Recommendation Correspondence Analysis |
| Warning judgment | When it happens | Remote Level 1 Judgment and Disposal Recommendations |
| Spare parts forecast | By cycle | Consumables replacement calculation and stocking tips |
| Special analysis | Before changing seasons and maintenance | Parameter adjustment and maintenance basis |
The acquisition module can be installed to take the signal from the existing instrument. The reconstruction quantity is evaluated according to the instrument conditions. Most of the devices in use have the installation conditions, and some old-fashioned meters need to be replaced.
The transmission content is limited to the operating parameters of the device, does not involve the production process and formula information, the channel is encrypted and the scope of data use is agreed, and the service agreement is written.
Remote judgment is located at the level of "which part and what nature", and on-site disposal is still subject to actual measurement. When the judgment does not match the actual measurement, the more accurate the judgment rule is, the more accurate it is.
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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