Insulation preservation methods for air pumps in high-temperature environments

The insulation preservation of air pumps in high-temperature environments should start from three aspects: environmental control, heat dissipation optimization, and physical protection. The following are the specific methods and analyses:

First, environmental control

Optimize the storage location

Cool and dark: The air pump should be placed in an area free from direct sunlight to prevent accelerated aging of rubber parts due to ultraviolet rays. For example, move the equipment to the north side of the room or install a sunshade.

Keep away from heat sources: Maintain a distance of at least 1.5 meters from heating equipment and high-temperature pipelines to prevent local overheating caused by heat radiation.

Ventilation design: Install exhaust fans on the top of the storage space to form air convection channels and accelerate the discharge of hot air.

Temperature and humidity control

Temperature range: The ambient temperature is controlled between 5℃ and 30℃ through industrial air conditioning to avoid structural stress caused by differences in the thermal expansion coefficients of materials.

Humidity control: Maintain the humidity at 40% to 80% to prevent condensation water from eroding electrical components.

Second, heat dissipation optimization

Upgrade of the heat dissipation system

Cooling tube cleaning: Regularly clean the oil stains on the cast aluminum heat dissipation tubes to ensure the heat exchange efficiency.

Forced air cooling: Install an axial flow fan, and configure the air volume according to the power of the air pump at 0.5m³/min·kW to reduce the temperature rise of the motor.

Heat pipe technology: Install a copper-water heat pipe between the motor and the pump body to conduct heat to the remote radiator.

Intelligent temperature control system

Temperature sensor: PT100 thermal resistors are installed in the motor windings, bearings and other parts to monitor the temperature in real time.

Variable frequency speed regulation: When the temperature exceeds the preset value, the frequency converter automatically reduces the speed to decrease heat generation.

Shutdown protection: When the temperature reaches the limit value, the relay is triggered to cut off the power supply to prevent equipment damage.

Third, physical protection

Application of Thermal insulation materials

Detachable insulation cover: The pump body is wrapped with aluminosilicate fiber felt, with a thermal conductivity of ≤0.035W/(m·K) and a temperature resistance of 650℃.

Reflective heat insulation coating: Zinc oxide ceramic coating is sprayed on the metal shell, with a solar radiation reflectivity of ≥90%.

Improvement of protective structure

Double-layer shell: The inner layer is made of stainless steel for pressure resistance, the outer layer is made of carbon steel for heat insulation, and the middle is filled with expanded perlite to reduce heat conduction.

Sealing upgrade: Fluororubber O-rings are adopted to replace nitrile rubber, and the temperature resistance range is expanded to -30℃ to 200℃.