In-depth analysis of dryer safety inspection process

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In the fast-paced modern life, the dryer with continuous hot air circulation quickly remove moisture, make clothes quickly restore dry fluffy, become indispensable housework good helper. But if the security is missing, it may become a source of security from the life of the assistant. Circuit failure, out-of-control temperature, mechanical anomalies and other issues can lead to serious consequences. Next, I will introduce you to the dryer safety inspection process in detail.

1.Preparation before testing

Inspectors should first carefully study the technical manual dryer, circuit drawings and maintenance records. The circuit design, temperature control logic and safety mechanism of different brands and models of dryers are quite different. Only by fully understanding the characteristics of the equipment can a practical detection scheme be developed. In the tool preparation aspect, the inspection personnel must prepare the multimeter, the insulation resistance tester, the Infrared Thermal Imager, the rotational speed measuring instrument and so on the specialized equipment. Before testing, the inspector needs to power down the dryer, unplug the Power Plug, empty the clothes and sundries in the drum, and leave the equipment in a completely static state, for the follow-up testing to create a safe, non-interference environment.

2.Inspection of appearance and structure

During this phase, inspectors conduct a carpet-like inspection of the shell to the internal structure, checking for any signs of cracks, deformation and corrosion. Shell as an internal component of the“Protective armor”, even a trace of damage may be buried security risks. Open and close the door repeatedly, feel the elasticity and fit of the door seal, and observe the sensitivity of the locking device. Drum and transmission parts, Whisper of the Heart the sound of rotation, feel the stability, check the wear and lubrication of belts, chains and gears, ensure smooth rotation and good lubrication of parts, no abnormal sound or excessive wear, eliminate mechanical failure.

3.Testing of thermal safety

The temperature control of dryer is the core of its safe operation. Testing personnel use professional equipment and methods to strictly control the temperature. After the dryer is started, the infrared thermal imager is used to monitor the temperature distribution of the shell in real time. During normal operation, the shell temperature should be uniform and within a reasonable range. If local overheating occurs, it may indicate internal circuit failure or poor heat dissipation, which needs further investigation. In the test of temperature control system, it is necessary to observe whether the temperature controller can accurately adjust the heating power by simulating different load conditions to ensure that the drying temperature is stable within the set range.

4.Safety marking and warning inspection

Safety signs and warnings are the bridge of safety communication between dryers and users. Testers should carefully examine the various signs and warnings on the equipment. CCC certification marks, rated power labels, safety warnings and other signs should be clear, complete and firm, indicating that the equipment conforms to national safety standards, providing users with correct operating instructions and safety warnings. Intentionally block the cooling hole, open the door, overload use, etc. , observe whether the dryer will issue an alarm or refuse to start. These security mechanisms can remind or prevent the user when they make a mistake to prevent accidents.

5. Test Report and suggestions for rectification

After the completion of testing, testing personnel according to the test data and results, issued a detailed, professional test report. The report clearly lists the existing problems, hidden danger level and rectification suggestions, and provides scientific basis for the repair of the dryer. For minor problems, such as fuzzy identification, loose screws, etc. , it is recommended that users rectify themselves or contact professional maintenance personnel to repair. For serious problems, such as circuit aging, temperature control failure, etc. , it is necessary to stop using immediately, and professional maintenance personnel should carry out comprehensive maintenance or replace components to ensure that the equipment is back to safe operation.

Conclusion

Dryer safety testing, is responsible for the safety of the user's life and property. Every rigorous and meticulous safety testing, are the solemn commitment to family safety, for thousands of families put up a safe umbrella, let the warmth and peace of mind often around.