Luoyang Wohong Petrochemical Equipment: Introduction to Remote Monitoring and Operation Data Services for Solvent Recovery Devices
Release time: 2026-09-30
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Solvent recovery devices are distributed across various workshops and factory areas, with their operational status being monitored through manual inspections, often leading to delayed problem detection - there is a whole process gap between data generation and its observation. Luoyang Wohong Petrochemical Equipment's remote monitoring and operational data services integrate key parameters of the devices into the monitoring platform, reporting temperature, pressure difference, concentration, and start-stop status hourly. This allows abnormal trends to be identified before they escalate into failures, shifting maintenance arrangements from reactive repair to scheduling based on data.
This service and operation and maintenance hosting are two separate product lines: hosting involves the service provider assigning personnel to be responsible for operation, while remote monitoring is a data service. The operation of the device is still carried out by the enterprise's own team. Both can be used individually or in combination - for anomalies detected by monitoring, those requiring on-site handling are transferred to maintenance work orders, while those that can be handled on a daily basis are provided with operational guidance.
What is monitored and measured
The measurement points are selected based on parameters that can characterize the health of the device: temperature and refrigerant state of the condensation system, pressure difference and outlet concentration of the adsorption check section, operating state and current of the pump, liquid level and condensate inventory of the storage tank, start-stop records and alarm events of the device. Data is collected on a minute-by-minute basis and summarized by shift, with trend curves available for inspection at any time. The principle of measurement points is to be few but accurate - what is measured is the state, not to connect all instruments to the network. The more measurement points, the heavier the maintenance burden.
The modification workload for connecting old devices is calculated based on the number of measurement points: most key instruments come with built-in signal output, and simply adding a collection gateway is sufficient; for individual old points with only on-site instruments, instruments with signal output are replaced as needed. The modification is arranged during the planned downtime window, and the workload for wiring and debugging is measured in days, with a controllable impact on production.
The purpose of data goes beyond early warning: when hourly operation curves are accumulated, the energy consumption structure, load pattern, and attenuation trend of the device can be traced, and data is available for transformation evaluation and spare parts planning - this data account becomes more valuable the longer it is used.
How does early warning work
The value of early warning lies in its predictive power: a gradual increase in pressure difference trend over several consecutive days is a precursor to the attenuation of adsorbent materials or blockage of filters; a deviation of temperature from the set range indicates a shortage of refrigerant or scaling on the heat exchange surface; an abnormal increase in start-stop frequency reflects a drift in control parameters or process fluctuations. The platform sets early warning lines based on parameters, and when these lines are crossed, an alert is triggered. The server duty personnel will make a preliminary judgment first, and then notify the on-site personnel or dispatch a work order according to the situation. Most issues can be addressed during the early warning stage, resulting in minimal costs and downtime losses.
Alerts must be closed-loop: The handler, handling action, and confirmation result of each alert are recorded on the platform, and continuous reminders are sent for unclosed alerts. Closed-loop data is summarized monthly, and recurring alert items are encrypted in the corresponding checklist. Management follows the data.
Service content and delivery
| monitoring target | key parameters | Early warning action |
|---|---|---|
| Condensation system | Temperature level and refrigerant state | Deviation indicates the need to check and replace the refrigerant heat exchanger |
| "Check and control section" | Pressure difference and outlet concentration | "Trend escalation and early intervention" |
| Pump | State current temperature rise | Abnormal transfer to repair order |
| tank | Liquid level and condensate inventory | Reminder when liquid level exceeds the limit |
| Start-stop record | Frequency and alarm events | If the frequency is abnormal, conduct an investigation |
| Monthly Report | Trend summary and suggestions | The service provider delivers on a monthly basis |
How to implement the service
- Select measurement points based on their health status, aiming for a small but accurate number, not excessively numerous;
- Install additional acquisition gateways, and replace meters at old points as needed;
- The warning line is set with different parameters, and when crossed, a push notification with preliminary judgment is sent;
- Closed-loop records of early warnings, with continuous reminders for those not yet closed;
- Deliver monthly trend reports and conduct repeated encryption checks;
- Integrate with maintenance work orders and provide timely feedback on on-site handling.
Frequently Asked Questions
Can the old device be connected to remote monitoring?
Capability: Most of the key instruments in the old equipment have signal output, and they can be connected by adding acquisition gateways. For individual old points with only on-site instruments, replace them with instruments with signal output as needed. The workload of the renovation is related to the number of measurement points, and it needs to be confirmed point by point during the planning stage.
How to manage data security?
Data is uploaded through an encrypted channel, and the enterprise has full access to view and export its own data. The server uses the data for operational analysis within the agreed scope and for no other purposes. The boundaries are clearly stated in the service agreement, which is also the premise for cooperation between both parties.
What if no one on site can handle the situation after an early warning has been issued?
The early warning push includes preliminary judgments and handling suggestions. Simple items are handled by the team according to the instructions; items that cannot be handled are transferred to the maintenance work order and arranged by the service provider. The handling confirmation is recorded on the platform, and early warnings without a closed loop are continuously reminded.
This article is compiled by Luoyang Wohong Petrochemical Equipment Co., Ltd., which provides design, manufacturing, and operation and maintenance services for condensation recovery, membrane separation recovery, and complete solvent recovery equipment to chemical and pharmaceutical enterprises. If you need process evaluation or scheme configuration, please feel free to contact us for discussion.
