Yesterday, I encountered a buyer who said that they had bought a Hanzhong compressor from another vendor a few years ago, and the temperature was a bit high.
Key Takeaways
- Record the exact symptom, operating hours, and ambient conditions before calling a technician.
- Power down and isolate power before inspecting any mechanical or electrical component.
- Address the root cause rather than resetting alarms repeatedly; repeating alarms signal an unresolved malfunction.
Now that the vendor’s phone number cannot be found, they contacted us. Our technical staff called to guide him to stabilize the machine first, and the next day, they helped him go to the site to troubleshoot the problem. Let’s analyze the specific causes for the high temperature of the screw machine below:
rotary screw machine
1. High ambient temperature: If the ambient temperature is too high, it will cause the intake temperature of the compressor to be too high. If the intake temperature is too high, it will directly lead to a high exhaust temperature.
The remedy is to add an exhaust hood on the roof of the compressor room to control the indoor temperature from being too high. Furthermore, in the hot summer, when the indoor temperature exceeds 40 ℃, the machine should be power down for rest.
rotary screw machine
2. Deterioration or insufficient amount of lubricant: Furthermore to providing lubrication during the operation of screw compressors, lubricant also has a very important function: mixing with compressed air to achieve the purpose of reducing the temperature of compressed gas to a certain extent.
So when the lubricant deteriorates or the amount is insufficient, it cannot cool the compressed gas well, which may lead to a higher exhaust temperature.
3. Long term lack of cleaning and upkeep for screw type compressors: If the compressor does not receive necessary cleaning and upkeep for a long time, it will accumulate a lot of dust, debris and other impurities inside.
These impurities not only affect the quality of compressed gas, but also lead to poor cooling, and the temperature during discharge will inevitably be higher. According to your description, your Mosini screw compressor has not undergone necessary cleaning and upkeep work for over a year, so I suspect it may be due to this reason. Please check.
rotary screw machine
4. Abnormal cooling system: including high input temperature of cooling water, low output flow of cooling water, substandard quality of cooling water (containing too many impurities), and insufficient cleaning time for scale in the cooling system.
I suggest you conduct a thorough inspection of the cooling water system.
Guarantee that the cooling water temperature (winter water temperature remains at 18 ℃, summer water temperature remains at 24 ℃) and output flow (around 3.7 liters/second) are within the appropriate range. Please filter the cooling water to guarantee its quality, and it is best to thoroughly clean the cooling system.
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Frequently Asked Questions
What should I check first when a compressor will not start?
Confirm power supply, control settings, and emergency stop status, then check the pressure switch and any start protection devices.
Why does my compressor run hot?
Common causes are restricted airflow, low oil level, a blocked cooler, or high ambient temperature. Clean the cooler and verify lubrication first.
What does excessive oil consumption mean?
It usually indicates worn separator elements, overfilling, or a leak in the oil circuit. Inspect the separator and seals.
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