Ensuring the safety of high-temperature drying rooms requiresSystem design, equipment protection, operational standards, emergency mechanismsBuild a security system in four dimensions toGT-BIR-46ATaking the high-temperature drying room as an example, its safety measures cover the entire process of electrical, thermal control, mechanical, and personnel management. The specific practice is as follows:

1、 Electrical safety protection: eliminate the risk of electric shock and short circuit

Wiring specifications and insulation protection

Strictly follow the national electrical safety standards, use flame-retardant cables for all circuits and fix them in sections. Install protective covers on the wiring ports to prevent exposure.

Insulation resistance between studio and power supply2MΩRegularly use a megohmmeter for testing to prevent static electricity accumulation from causing sparks.

Multiple leakage protection

Configure a residual current circuit breaker, when the leakage current is greater than30mAAutomatically cut off power supply, response time≤0.1In seconds.

Key components such as heaters and fans are protected by independent grounding with grounding resistance≤4ΩEnsure that the fault current is quickly introduced into the ground.

2、 Thermal control safety design: prevent overheating and fire

Dual protection against overheating

Built in over temperature sensor in the air duct: when the temperature of the circulating air duct exceeds the set value5℃Trigger the exhaust system and reduce the heating power.

Indoor independent over temperature alarm: temperature>235℃(With)230℃For example, when the upper limit is reached, the sound and light alarm will activate and the main power will be cut off at the same time.

Fireproof insulation and material safety

Fill the area around the heater with aluminum silicate fiber blanket (temperature resistant)1000℃）The outer storage board adopts75mmThick rock wool sandwich panel, with a fire resistance limit of up to1Hour.

Selection of lighting systemIP65Explosion proof lamp with protection level. A sealing ring is installed between the lamp body and the glass cover to prevent the lampshade from bursting due to high temperature.

3、 Mechanical safety structure: reducing the risk of equipment failure

Fan overload protection

The blower motor is equipped with a thermal relay, and when the current exceeds the rated value1.2Automatically stop the machine at double the time to prevent the motor from burning out and causing a fire.

The fan impeller is made of aluminum alloy material, with dynamic balance accuracy≤G2.5Reduce the risk of bolt loosening caused by vibration.

Door lock and limit device

The drying door is equipped with an electromagnetic interlock device, which cannot be opened during operation; In emergency situations, the door can be quickly opened by manually releasing the lever.

Set up a sample rack limit sensor in the drying room, when the rack displacement is greater than10mmTrigger an alarm to prevent material dumping from blocking the air duct.

4、 Operation and emergency management: Strengthen personnel safety awareness

Permission grading and operation training

The control system is set with three levels of permissions (administrator, operator, visitor). Administrators can modify core parameters such as temperature curves, while operators can only start/Stop the device.

Operators must pass theoretical exams (including safety regulations, emergency response) and practical assessments (equipment start stop, alarm response) before they can take up their posts.

Emergency plan and drill

Develop an Emergency Plan for High Temperature Drying Room Accidents, specifying the handling procedures for three types of scenarios: overheating, electrical leakage, and fire

Overtemperature: Immediately press the emergency stop button, open the exhaust valve, and use a carbon dioxide fire extinguisher to check the heater.

Leakage: Cut off the main power supply, use an insulating rod to open the leakage equipment, and evacuate personnel to a safe area.

Organize an emergency drill once a quarter to record response time and disposal effectiveness, and optimize the details of the contingency plan.

5、 Maintenance and Testing: Preventing Potential Hazards

Regular calibration and testing

Calibrate quarterly using a standard temperature source (such as a platinum resistance thermometer)PT100Sensor, ensure temperature display error≤±0.5℃.

Every year, a third-party organization is commissioned to test the grounding resistance and insulation performance of the equipment and issue a compliance report.

Replacement cycle of vulnerable parts

The lifespan of the heating tube is approximately8000After reaching the end of its lifespan, it will be forcibly replaced; Each fan bearing5000Add high-temperature resistant lubricating grease every hour.

Fireproof and thermal insulation materials3Check once a year and replace immediately if powdering or cracking occurs.

Through the above measures,GT-BIR-46AIn the application of a high-temperature drying room in an electronic component factory, continuous3Annual achievement“Zero accidents”Running, equipment availability reaches99.2%Its security system not only complies withGB50243-2002The "Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering" has been approved by the European UnionCECertification provides a replicable safety management template for industrial drying processes.