Positive pressure shell type explosion-proof motors are usually used in environments with explosion hazards, such as petrochemical industry, coal mines, dust environments, etc.
The main function of the purge device is to prevent explosive gas or dust from accumulating inside the motor housing, thereby avoiding triggering an explosion. The specific reasons are as follows: Prevent the accumulation of gas or dust: The positive pressure housing type explosion-proof motor continuously provides positive pressure air flow into the motor housing through the purging device to keep the air inside the motor flowing. This positive pressure state can prevent external explosive gas or dust from entering the inside of the motor and discharge the explosive gas or dust generated inside, avoiding accumulation and accumulation.
Prevent explosions inside the motor: Some small-scale sparks or high temperatures may occur inside the positive-pressure shell type explosion-proof motor, such as brush friction, electromagnetic induction when the motor coil is working, etc. The positive pressure airflow provided by the purge device can effectively quickly discharge sparks or heat energy that may cause explosions, reducing the possibility of internal explosions. Improve safety performance: The purge device of the positive pressure housing type explosion-proof motor can achieve continuous positive pressure supply, ensuring that the atmosphere in the motor housing is always maintained at a high pressure. In this way, even if there is an explosive environment outside, the motor housing can remain in a relatively safe state, reducing the risk of explosion.
To sum up, the purging device is to maintain the positive pressure state, prevent the accumulation of gas or dust, prevent explosions inside the motor, and improve the safety performance of the positive pressure shell-type explosion-proof motor. It is an important safety measure that can effectively reduce the occurrence of explosion accidents.
Post time: Nov-09-2023
