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What Is Portable Oil Free Air Compressor?
The manufacturing of portable oil free air compressor is organized by Guangdong Jinyuan Equipment Technology Co., Ltd according to the advanced and lean production principles. We adopt lean manufacturing to improve material handling and quality, leading to a better product being delivered to the customer. And we utilize this principle for continuous improvement to cut waste and create values of the product.
Jinyuan Air Compressor enjoys high popularity across the world. All the products under the brand are of superior performance, bringing a fantastic user experience. Thanks to that, the products help safeguard and consolidate the brand fame and further increase the brand value. More and more customers speak highly of the products and give thumbs-up on our social media like Facebook. Those compliments also attract new customers to choose us as their reliable partner.
Jinyuan gathers a team of well trained members who are always ready to solve problems. If you want to make a difference in product design, our talented designers will do it; if you like to talk about the MOQ, our teams of production and sales will cooperate to make it...A good example is set by portable oil free air compressor.
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1. The reason and preventive measures of oil injection (commonly known as oil vomiting) of the screw air compressor host.
Cause analysis:
The oil injection of the screw air compressor refers to the oil injection of the air inlet of the air compressor. Generally occurs in the sudden shutdown, such as the air compressor motor power loss or manual emergency shutdown, at this time the air compressor suddenly shutdown and did not open the discharge valve in time to discharge the air compressor oil and gas barrel residual gas, if the intake check valve is too late to close, the air compressor inlet is injected with lubricating oil.
Troubleshooting / preventive measures:
First, check that the broken oil solenoid valve has no fault. If it is normal, it should further check whether the check valve on the main exhaust pipe can be closed in time or closed completely. If any, any fault should be removed. At present, the double screw air compressor is generally no longer installed broken oil solenoid valve, so the main reason for oil injection is that the check valve is not closed.
Once the power is off, the solenoid valve action, the intake valve closed, initial isolation, but there are generally air holes or gaps on the intake valve, can not be completely isolated from the outside, for the butterfly intake valve, the heavy hammer check valve feel the pressure change, emergency closure, this is the most effective and the last measure to prevent oil spitting. At present, the double screw air compressor generally does not install broken oil valve, after shutdown through the check valve partition, pressure to the oil of the oil in the machine internal pressure into zero, gravity back to oil and gas barrel, the heavy hammer check valve is the most effective way to prevent oil, but now some small models usually use piston type intake valve (or lift valve), with spring control piston to play the dual role of intake regulation and check, over time, piston wear is inevitable, shutdown spit oil will happen, is normal shutdown stop oil phenomenon.
2. Reasons and treatment methods for not loading the screw air compressor.
Fault phenomenon:
The air compressor start the air valve can not open.
The possible causes include:
(1) Pressure switch failure;
(2) Solenoid valve failure;
(3) Poor injection valve lag action;
(4) The discharge solenoid valve failure;
(5) Poor operation of the pressure maintenance valve;
(6) Control the gas source pipeline leakage.
Troubleshooting:
Check, repair or replace for the above possible causes.
3. The reasons and treatment methods for not unloading the screw air compressor.
Fault phenomenon:
The air compressor continues to operate after exceeding the set pressure and cannot be unloaded Vehicle, or continue to rise to the safety valve action.
The possible causes include:
(1) The pressure switch is not set properly or the drift occurs after setting (the controller fault);
(2) The inlet valve is not poor, and it causes failure or incomplete movement;
(3) When the system stops using gas, if the discharge solenoid valve fails, the pressure will rise slowly;
(4) Failure of the control loop.
Troubleshooting:
Check, clean, repair and replace if necessary.
4. Reasons and treatment methods of frequent addition and unloading of screw air compressor.(Power frequency machine)
The possible causes include:
(1) The pressure difference between the upper and lower limits of the pressure setting is too small;
(2) There is more leakage in the gas pipeline or equipment;
(3) The pressure maintenance valve seal is not strict, the spring fatigue;
(4) The upper pressure limit is set too low;
(5) The pipe filter on the exhaust pipe of the air compressor is seriously blocked;
(6) Check valve is installed on the outlet pipe of the screw air compressor.
Troubleshooting:
Reset the pressure difference between the upper and lower pressure above 0.2MPa, consider increasing the capacity of the gas storage tank, eliminate leakage, adjust or repair the pressure to maintain the valve spring force. The pressure maintenance valve of the screw air compressor is equivalent to the check valve. If there is a check valve on the outlet pipeline, the pressure detected by the pressure sensor of the air compressor is actually a small pressure of the pipeline. If the pressure maintenance valve of the air compressor leaks slightly to the oil and gas barrel, the pressure detected by the pressure sensor will drop, causing the reloading of the air compressor.
5. Reasons and treatment methods for screw air compressor for a long time.
The possible reason is the fault of the time relay. The screw compressor is generally set for 15~20min after the empty motor motor stops running. If the motor is not stopped, the time relay and control circuit should be checked and replaced if necessary.
10. Reasons and treatment methods of abnormal noise of screw air compressor.
The fault phenomenon is mainly the air compressor host vibration, noise, the operation will sometimes emit metal impact sound, uniform percussion sound, friction noise, etc.
The possible causes include:
(1) For the belt conveyor, the belt may be too loose, the main and passive belt groove does not consistent by slipping and howling;
(2) The host fasteners or related accessories become loose;
(3) The bearing of the main engine is damaged, causing mutual friction between the rotor during operation;
(4) The airflow roar is relatively complex. Usually, this noise only occurs in some pressure segments, and the position of the roar may be the inlet valve and the minimum pressure valve.
Troubleshooting: Check for the above possible causes. The abnormal noise caused by the main engine bearing damage needs special attention. It is often an important signal that the nose is about to jam, so the head overhaul should be arranged as soon as possible.
11. The cause and treatment method of the filter smoke in the empty screw air compressor.
Fault phenomenon: When the air compressor is unloading, the air filter has smoke discharge.
The possible causes include:
(1) The air inlet valve is not strictly closed or stuck;
(2) Check valve leakage, resulting in excessive discharge of gas;
(3) damaged oil and gas separator;
(4) Heavy car shutdown.
Troubleshooting:
(1) Repair the air inlet valve and replace it if necessary;
(2) Check whether the check valve is worn, if worn, replace;
(3) Replace the oil and gas separator;
(4) Test whether the intake valve is stuck, and add lubricating grease after disassembly and cleaning.
12.Reasons for large oil consumption of screw air compressor.
The possible causes include:
(1) The amount of lubricating oil is too much, the correct position should be observed when the unit loading, at this time the oil level should not be higher than half of the oil level mirror;
(2) The return oil pipe blockage;
(3) The distance between the installation of the oil return pipe and the bottom of the oil and gas separator does not meet the requirements:
(4) The unit is operating in a low pressure state for a long time;
(5) Oil and gas separator core rupture;
(6) damage of the oil and gas bucket;
(7) Oil leakage occurs in the oil system or the main engine shaft seal;
(8) Lubricating oil deterioration or overdue use.
Troubleshooting:
(1) Check the oil level and discharge the excess oil;
(2) Remove and clean the return oil pipe;
(3) Adjust the distance between the return oil pipe and the bottom of the oil and gas separator;
(4) Increase the exhaust pressure;
(5) Check and replace the oil and gas separator core;
(6) Check the oil and gas barrel and repair the damaged partition plate;
(7) the elimination of oil leakage phenomenon;
(8) Replace the qualified lubricating oil.
13.Reasons and treatment methods of large water content of compressed air system.
The possible causes include:
(1) Cooler leakage;
(2) Frozen dryers or other dryers do not work normally;
(3) The gas storage tank does not release water regularly.
Troubleshooting:
(1) Remove the drain or replace the cooler after leak detection;
(2) Eliminate the fault existing in the frozen dryer or dryer;
(3) Regular water release in the gas storage tank.
The fault phenomenon is mainly the air compressor host vibration, noise, the operation will sometimes emit metal impact sound, uniform percussion sound, friction noise, etc.
The possible causes include:
(1) For the belt conveyor, the belt may be too loose, the main and passive belt groove does not consistent by slipping and howling;
(2) The host fasteners or related accessories become loose;
(3) The bearing of the main engine is damaged, causing mutual friction between the rotor during operation;
(4) The airflow roar is relatively complex. Usually, this noise only occurs in some pressure segments, and the position of the roar may be the inlet valve and the minimum pressure valve.
Troubleshooting: Check for the above possible causes. The abnormal noise caused by the main engine bearing damage needs special attention. It is often an important signal that the nose is about to jam, so the head overhaul should be arranged as soon as possible.
11. The cause and treatment method of the filter smoke in the empty screw air compressor.
Fault phenomenon: When the air compressor is unloading, the air filter has smoke discharge.
The possible causes include:
(1) The air inlet valve is not strictly closed or stuck;
(2) Check valve leakage, resulting in excessive discharge of gas;
(3) damaged oil and gas separator;
(4) Heavy car shutdown.
Troubleshooting:
(1) Repair the air inlet valve and replace it if necessary;
(2) Check whether the check valve is worn, if worn, replace;
(3) Replace the oil and gas separator;
(4) Test whether the intake valve is stuck, and add lubricating grease after disassembly and cleaning.
12.Reasons for large oil consumption of screw air compressor.
The possible causes include:
(1) The amount of lubricating oil is too much, the correct position should be observed when the unit loading, at this time the oil level should not be higher than half of the oil level mirror;
(2) The return oil pipe blockage;
(3) The distance between the installation of the oil return pipe and the bottom of the oil and gas separator does not meet the requirements:
(4) The unit is operating in a low pressure state for a long time;
(5) Oil and gas separator core rupture;
(6) damage of the oil and gas bucket;
(7) Oil leakage occurs in the oil system or the main engine shaft seal;
(8) Lubricating oil deterioration or overdue use.
Troubleshooting:
(1) Check the oil level and discharge the excess oil;
(2) Remove and clean the return oil pipe;
(3) Adjust the distance between the return oil pipe and the bottom of the oil and gas separator;
(4) Increase the exhaust pressure;
(5) Check and replace the oil and gas separator core;
(6) Check the oil and gas barrel and repair the damaged partition plate;
(7) the elimination of oil leakage phenomenon;
(8) Replace the qualified lubricating oil.
13.Reasons and treatment methods of large water content of compressed air system.
The possible causes include:
(1) Cooler leakage;
(2) Frozen dryers or other dryers do not work normally;
(3) The gas storage tank does not release water regularly.
Troubleshooting:
(1) Remove the drain or replace the cooler after leak detection;
(2) Eliminate the fault existing in the frozen dryer or dryer;
(3) Regular water release in the gas storage tank.
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