In a refinery, a storage tank area leaked flammable gas due to valve seal failure. Traditional walkie-talkies were unable to call the police in time due to signal blind spots. Inspection personnel failed to detect hidden dangers immediately because they did not carry portable detectors... Such scenes were once a pain point in the industry. Today, Dingjian explosion-proof handheld terminals use "intrinsic safety + intelligent IoT" technology to extend safety management and control to full-process scenarios such as tank farms, pipelines, and pump rooms, building a closed-loop safety system of "prevention-monitoring-early warning-response-rescue" for refineries.
Tank farm: Intrinsic safety builds the first line of defense
The storage tank area of a refinery is a "gathering place" for flammable and explosive gases, and the risk of gas leakage such as methane and hydrogen sulfide is extremely high. Dingjian explosion-proof handheld terminal passes Ex ib IIC T4 Gb intrinsically safe certification, using low-power circuit design, explosion-proof battery and sealed casing to ensure that the device does not produce sparks or high temperatures in a gas environment, and eliminates ignition sources from the source. For example, in a refinery In the tank area, the terminal integrates a laser methane sensor, which can quickly scan valves, flange connections and other high-risk leakage points. The detection sensitivity reaches ppm level, the response time is <3 seconds, and abnormal data is uploaded to the management system in seconds, gaining prime time for emergency decision-making.
More importantly, the terminal’s electronic fence functionThe boundaries of high-risk areas can be delineated. When personnel or equipment enter in violation of regulations, local sound and light alarms are immediately triggered and pushed to the command center. After a petrochemical company applied it, illegal entry incidents in the storage tank area were reduced by 80%, and safety accidents caused by inspection personnel's misoperation were reduced to zero.
pipeline: Intelligent inspection cracks down on “hidden risks””
Refining and chemical pipelines are like "industrial blood vessels", but hidden dangers such as corrosion and cracks are often hidden underground or in high-altitude pipe galleries. Dingjian terminal passes UWB ultra-wideband positioning technology, realizes centimeter-level trajectory tracking in a closed space, combines with NFC/QR code scanning function, and automatically associates pipeline files with historical inspection records. For example, in A refineryDuring the inspection of the pipeline corridor, after the inspection personnel scanned the QR code of the pipeline, the terminal automatically retrieved the pressure and temperature data of the pipeline in the past three years, analyzed the corrosion trend through AI algorithms, and warned of potential leakage risks 14 days in advance.
For long-distance pipelines, terminal supportBeidou satellite + 5G dual-mode communication can still send leak point coordinates and on-site images through the Beidou short message function even in remote mountainous areas or areas without public network coverage. During a cross-provincial pipeline inspection in 2025, when the ground network was interrupted, the terminal sent back a heat map of the pipeline network in real time through Beidou short messages, helping the command center to accurately locate three small leak points and avoid a large-scale production shutdown.
Pump room and reactor: Real-time monitoring and early warning of equipment failures
Overheating of pump bearings and abnormal reactor pressure are common hidden dangers in refining and chemical production. Dingjian terminal integrates a multi-parameter sensor array, which can simultaneously monitor equipment vibration, temperature, pressure and other data, and achieve fault prediction through edge computing. in a certain In the petrochemical catalytic cracking unit, the terminal analyzes the reactor temperature curve in real time. When the temperature deviates from the standard value ±2°C, an early warning is immediately triggered and a maintenance work order is generated, reducing unplanned downtime by 60%.
What’s even smarter is the terminal’s AR auxiliary operation functionThe 3D model of equipment and operating instructions can be superimposed to reduce human error. During the maintenance of Yangzi Petrochemical's pump room, new employees quickly located the valve switching sequence and lubrication point positions through the terminal AR interface. The maintenance efficiency increased by 40% and the misoperation rate dropped by 90%.
emergency response: Full-link linkage shortens rescue time
When an accident occurs, information lag and command inefficiency are the "fatal killers" of rescue. Dingjian terminal support 5G/4G/Wi-Fi/Bluetooth multi-mode communication, combined with high-definition video backhaul and cluster scheduling functions, to achieve "field-backend" real-time linkage. In a fire accident in a refinery, on-site personnel raised the alarm with one click through the terminal, and simultaneously uploaded fire pictures and positioning information. The command center retrieved the distribution map of surrounding firefighting facilities within 30 seconds and planned the best rescue path, shortening the emergency response time from 15 minutes in the traditional model to 3 minutes.
Beidou high-precision positioning of explosion-proof terminalsIt can track the trajectory of rescuers and demarcate safe areas combined with electronic fences to avoid secondary accidents. In a certain hydrogen sulfide leakage accident, the terminal discovered through Beidou positioning that two rescuers had entered a high-concentration area, and immediately triggered a forced evacuation order, successfully avoiding casualties.
The leap from "passive response" to "active prevention and control"
The Dingjian explosion-proof handheld terminal is not only a piece of equipment, but also the “digital nerve center” for safe production in refineries. It uses intrinsic safety technology to break through scene limitations, uses intelligent IoT to reconstruct operating processes, and uses real-time data to drive decision-making optimization, upgrading safety management and control from "civil defense" to a three-dimensional system of "technical defense + civil defense + joint defense".
Dingjian focuses on the R&D, production and sales of three-proof communication products such as single Beidou handheld terminals, Beidou short message terminals, RTK high-precision positioning terminals, single Beidou explosion-proof intercom terminals, explosion-proof mobile phones, anti-confidential mobile phones, 5G single Beidou law enforcement recorders, satellite communication phones, etc. It supports customized Hongmeng systems, secondary development, and provides one-stop communication equipment application solutions.
