Exhaust pressure is too low: first check if the intake valve is fully open and the current is within the normal range. Then check if the external air volume is increased or if there is a leak.
Automatic shutdown of the screw compressor during operation: There are two main reasons for the automatic trip of the machine during operation: First, the power grid factor. Because the machine itself has undervoltage protector, fault phase protector, high voltage protector and other safety protection devices. When the grid voltage is lower than the rated voltage (380V) by about 90%, or when the power phase sequence is incorrect and the three-phase power supply is out of phase, it will automatically trip and stop. Second, the exhaust temperature is too high. It may be that the lubricant is missing, the cooler is clogged, or the temperature control valve fails to operate normally.
When the compressor is stopped, the air inlet of the screw compressor is injected outwards: when the compressor suddenly stops and the exhaust valve is not opened in time, the air inlet is sprayed with cooling oil. At this time, first check whether the intake valve is faulty. Normally closed, the second check is that the oil-off solenoid valve has a fault. If it is normal, it should be further checked whether the check valve on the main exhaust pipe can be closed or closed in time. If there is any fault, it should be eliminated.
The temperature is too high: the screw compressor is set to a high exhaust temperature of 120 degrees Celsius. When the temperature reaches 110 degrees, the temperature warning light starts to flash alarm. When it exceeds 120 degrees, it will automatically stop. Excessive temperature shutdown usually has the following reasons: 1. Poor environmental ventilation and heat dissipation; 2. Screw compressor fan blade break or slack; 3. Screw compressor oil filter is too dirty; 4. Cooling oil surface is too low; 5. The cooling oil number is low or the oil quality is poor; 6. The radiator is blocked; 7. The screw compressor oil shut-off valve is out of order (only on the large model); 8. The thermostat bypass valve is in the open position; The oil separator filter is too dirty.
Security Camera Surveillance camera is a semiconductor imaging device, which has the advantages of high sensitivity, strong light resistance, small distortion, small size, long life, and anti-vibration. Surveillance cameras in security systems.
Image generation is currently mainly from CCD cameras, and the stored charge can also be taken out to change the voltage. It has the characteristics of anti-vibration and impact and is widely used.
Security Camera Surveillance camera is a semiconductor imaging device, which has the advantages of high sensitivity, strong light resistance, small distortion, small size, long life, and anti-vibration. Surveillance cameras in security systems.
Image generation is currently mainly from CCD cameras, and the stored charge can also be taken out to change the voltage. It has the characteristics of anti-vibration and impact and is widely used.
Security Camera Surveillance camera is a semiconductor imaging device, which has the advantages of high sensitivity, strong light resistance, small distortion, small size, long life, and anti-vibration. Surveillance cameras in security systems.
Image generation is currently mainly from CCD cameras, and the stored charge can also be taken out to change the voltage. It has the characteristics of anti-vibration and impact and is widely used.
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