How does the boiler maintenance platform monitoring system safeguard the "high-temperature forbidden zone"?

At the top of the 80-meter-high boiler, inside the furnace at 60℃, and on the maintenance platform filled with dust and coal ash - the boiler maintenance workers seem to be walking on the boundary between steel and flame. The accident at a certain power plant in May 2024 sounded the alarm: two maintenance workers fell due to abnormal vibration of the platform, which exposed the fatal blind spot of traditional maintenance supervision. The modern boiler maintenance platform monitoring system is currentlyMillimeter-level perceptionandSecond-level responseBuild an intelligent safety defense line for high-temperature restricted areas.

Blood and tears Warning: The blind Spot of life and Death in Boiler maintenance

The interior of the boiler is like a steel maze, concealing four major dangers:

• Structural invisible killerA 0.2mm crack in the furnace support has expanded, which may cause the platform to collapse. (Accident investigation report of a certain power plant)

• Spatially positioned black holeWhen operating on multi-layer platforms, the positions of personnel at the upper and lower levels cannot be known to each other

• Environmental mutation trapThe temperature inside the furnace rose sharply by 50℃ within 10 minutes, and the escape route might be blocked by the heat wave

• Vital signs are disconnectedA maintenance worker fell into a coma due to heatstroke and was not discovered until an hour later

Traditional supervision relies on human eyes and walkie-talkies, which is ineffective in the purgatory of high temperature, dust and noise

Technological Breakthrough: The Three-in-One Intelligent Guardian Network

Steel stethoscope: Making cracks nowhere to hide

• Optical fiber sensing neural network：
  128 sensors are implanted at key nodes of the platform to monitor micro-strain in real time
  The accuracy reaches 0.1mm/m (equivalent to sensing the curvature of a human hair)

• Acoustic emission flaw detection：
  Capture the "groans" of metal fatigue and warn of structural damage 30 days in advance
  Huaneng Dezhou Power Plant successfully avoided a platform collapse accident.

• Dynamic load-bearing cloud map：
  Display the load status of each area of the platform, and automatically flash red light in areas exceeding the limit

Personnel life radar

• UWB centimeter-level positioning：
  Each person should wear a name tag with a position error of less than 5cm

• Intelligent electronic fence：
  It automatically vibrates and gives an alarm when approaching high-temperature pipelines or openings

• Multi-machine collaborative collision avoidance：
  When the distance between the hoisting equipment and personnel is less than 1 meter, the system will forcibly suspend the operation

Environmental early warning prophet

• Three-in-one monitoring of temperature, pressure and toxicity：
  Capture CO concentration exceeding the standard/sudden temperature rise/abnormal negative pressure within 0.5 seconds

• Intelligent escape navigation：
  When an emergency occurs, the nearest escape route is projected onto the helmet mask by a green arrow

• Respiratory Monitoring sentry：
  The smart bracelet monitors blood oxygen and heart rate, and automatically calls for help when there are abnormalities

Practical Rescue: The Life-and-Death Race of Intelligent Systems

The thrilling 60 seconds of Yanshan Petrochemical in 2024
Sudden steam leakage during maintenance:

1. The environmental sensor triggers an alarm within 0.3 seconds

2. The positioning system has identified seven trapped individuals

3. AR navigation guides you through the foggy area

4. Life monitoring showed a sudden drop in blood oxygen levels in one person
   The rescue team rescued all the people in 8 minutes along the system path

The millimeter Guardian of Datang Tuoketuo Power Plant
Crack propagation of the support was detected in the furnace chamber.

• The acoustic sensor gives a warning 42 hours in advance

• The digital twin platform simulates the best reinforcement plan

• The crack propagation rate dropped from 0.15mm per day to 0.02mm per day
  Extend the service life of the platform by three years

Policy upgrade: Mandatory standards build a red line for life

• New Regulations in 2024TSG 11-2024 stipulates that structural monitoring must be installed on boiler platforms over 50 meters in height

• Article 25 on Electric Power SafetyClearly define the coverage rate of the personnel positioning system as 100%

• Eu PED DirectiveExport equipment must pass the EN 13445 explosion-proof certification

The core of selection: Survival rules in high-temperature restricted zones

The five essential needs are all indispensable

1. Triple protection certificationExplosion-proof Ex ib IIC T4+ shock-resistant IEC 60068+ anti-corrosion IP67

2. Millisecond-level responseFrom risk identification to alarm, it takes no more than 0.5 seconds

3. Extreme environmental enduranceContinuous operation at 150℃ high temperature/no failure at 95% humidity

4. Intelligent decision-makingAutomatically generate risk-avoidance plans instead of simply sounding the alarm

5. 快速部署Complete the renovation of the old platform within 24 hours

Intelligent Evolution: A Revolution from Guardianship to Foresight

Cutting-edge technologies are reshaping the boundaries of security:

• Digital Twin Early Warning：
  The State Power Investment Corporation system simulates 10 years of structural aging, reducing maintenance costs by 40%

• AR Remote Expert：
  On-site personnel called cloud engineers through helmets, and the efficiency of fault handling was increased by three times

• Swarm intelligence risk aversion：
  In case of sudden emergencies, it automatically plans the optimal evacuation route to avoid the risk of stampedes

The light of life in the steel jungle

When the maintenance workers looked down at the fierce flames in the furnace from an 80-meter-high platform, and when they inspected every pipe in a temperature of 60℃ -Modern monitoring systems are like invisible guardians, measuring safety with an accuracy of 0.1 millimeters and seizing opportunities with a speed of 0.5 seconds。

According to the statistics of the Electric Power Safety Committee, the number of boiler maintenance accidents has decreased by 731 tons to 3 tons after the promotion of the intelligent monitoring system. But more precious than the data is that an old worker dares to let his son take over the shift and enter the boiler room. A 90s maintenance worker wiped the sweat with a smile and said, "This is safer than playing games." Finally, the head of the power plant's safety department can have a good night's sleep.

On the battlefield of steel and flames, this system has transcended the realm of equipment - it isThe bridge of life spanning the high-temperature restricted zoneReplace experience and intuition with optical fiber sensing and overcome the mentality of taking chances with digital early warning. Let every tanned face emerging from the boiler be filled with a smile as they return safely.