Key points for using compressed air systems in winter
The arrival of a cold wave, especially when the temperature is below 0 ℃, often poses safety hazards to equipment in industrial and mining enterprises. The air compressor is an indispensable and important equipment in the production process. How to make good use of the compressed air system in the cold season to avoid or reduce the adverse effects of low temperature on the air compressor and its system? JOY Machinery's summary is as follows:
1、 Environmental temperature control
Take measures to prevent cold in the air compressor room and maintain the temperature of the air compressor room above zero degrees Celsius; Outdoor pipelines, valves, etc. should be protected against freezing, and heating equipment can be equipped if conditions permit.
2、 Precautions for starting air compressors in winter
a. Power on operation
When starting the screw air compressor in the morning, be sure to preheat the machine. Because the viscosity of lubricating oil increases at low temperatures, a high viscosity at low temperatures will reduce the oil filtration capacity, resulting in a small oil volume in the compression chamber of the micro oil compressor during the initial start-up stage, which may cause a series of problems. Therefore, special attention should be paid to the status of the lubrication system. Method: When starting the air compressor, press the start button and wait for the compressor to run for 3-5 seconds before pressing the stop button. After the air compressor stops for 2-3 minutes (preferably with a 2-3 minute interval as there is internal pressure in the tank), let the air compressor run for 3-5 seconds and press the stop button. At an ambient temperature of 0 ℃, repeat the above steps 2-3 times; If the ambient temperature is below -10 ℃, repeat the above steps 3-5 times.
Prevent low temperature and high viscosity of lubricating oil from causing poor lubrication of the air compressor host, resulting in dry grinding of the host, damage or jamming of the host (head, air end), increasing the current of the frequency converter, and causing OC/OL situations!
It is recommended to use original lubricating oil and increase the frequency of oil filter replacement in low temperature environments. After a long-term shutdown and starting in a low-temperature environment, the oil filter should be replaced.
Before starting the micro oil air compressor equipped with a heat recovery system, the oil circuit valve connected to the heat recovery system should be cut off; After the compressor is loaded normally, open the valve and switch to the heat recovery state.
Check if the oil level is normal and add lubricating oil if necessary.
For water-cooled units, check the water cooler to ensure smooth water flow and no leaks.
For centrifugal compressors, check the operating current and adjust the maximum load setting point if necessary to avoid long-term operation of the equipment at maximum load, which may cause motor overload damage.
b. Operation after shutdown
After the system shuts down from a high-temperature operating state, the gas in the compression chamber, pipelines, and gas storage tanks will precipitate a large amount of condensate in the low-temperature environment. To prevent condensate from freezing and blocking the system or even cracking components in extremely low temperature environments, it is necessary to promptly discharge the condensate from the compression chamber, pipelines, and air storage tanks when the system temperature drops to the ambient temperature.
For water-cooled units, if there may be extremely low temperature conditions after shutdown, the remaining cooling water in the compressor water cooler should be drained and the inlet and outlet water valves should be closed; If necessary, compressed air should be used to blow and evacuate to avoid freezing and causing expansion and cracking of the cooling pipe.
I hope the above sharing can help you maintain excellent performance of the air compressor without being troubled by cold.
JOY MACHINERY always adheres to the corporate vision of "building a leading brand of oil-free air compressors in the world", and hopes to provide high-quality, clean and safe air for food, beverage and other production enterprises on the road of oil-free air compressor research and development, production and sales. Source protection, and also contribute a little bit to people's health and safety.
JOY MACHINERY oil-free air compressor series is widely used in the food and beverage processing industry due to its clean air source and continuous and stable gas transmission. If you have any needs, please contact us! JOY Machinery (Shanghai) Co., Ltd. has a professional design team with rich experience and welcomes customization. Diversified products can meet most applications and meet your one-stop shopping needs. The air compressor series includes power frequency screw air compressors, variable frequency screw air compressors, permanent magnet variable frequency screw air compressors, two-stage compression screw air compressors, integrated screw air compressors, laser cutting air compressors, medium and high pressure air compressors. Air compressors, oil-free water-lubricated screw air compressors (special oil-free screw air compressors for the medical industry), diesel-moving screw air compressors, electric-moving screw air compressors and other products.
"Customer satisfaction is our unswerving pursuit", "High quality, good services", and strive to make every customer use the good products they like.
For more information about our products, please visit us at : m.wriol.cn, 24-hour hotline: 13621925718 (WeChat, WhatsApp).
Chinese
English
