What is the operation process of the air compressor?

Denaire air compressor experts tell you that the following process should be followed.

1. Before the start of operation.

1. Check to confirm whether the valves in each part are in the correct position.

2 Check that all guards and safety accessories are in good condition.

3. Check whether the lubricating oil surface meets the standard.

II. Steps.

1 First press the "on" button of the air dryer and let the air dryer run for more than 5 minutes. Observe whether the dryer is running normally.

Steady. 2 Press the air compressor "start" button (or "*" key).

3 Slowly open the exhaust valve until fully open.

3. Shutdown.

1 Press the air compressor "Stop" button (or "O" key).

2 Press the "OFF" button of the air dryer.

3 Close the exhaust valve.

4. Safety and precautions.

1 When the ambient temperature is close to 30 degrees Celsius, the exhaust fan should be turned on to reduce the indoor temperature.

2 When the ambient temperature exceeds 30 degrees Celsius, the induced draft fan should be turned on to reduce the indoor temperature.

3 When the indoor noise is greater than 90db (a), protective earmuffs should be worn.

Air compressor is a commonly used mechanical equipment, and the brand types are relatively wide, the following are some basic operation steps of the air compressor:

1.Check the indicators of the air compressor to ensure its normal operation.

2.Turn on the switch of the air compressor and start the motor.

3.Check the pressure gauge of the compressor to ensure that the pressure output is within the normal range.

4.Check the air compressor's cooling system to make sure it's functioning properly.

5.During operation, regularly check the oil level and oil quality of the air compressor to ensure its normal lubrication.

6.During use, the filter of the air compressor should be cleaned regularly to ensure that the air is filtered by the normal Qinghuai core.

7.Before shutting down, turn off the switch of the air compressor, cut off the power supply, and clean up all parts of the air compressor to ensure its normal use.

The above are the basic operation steps of the air compressor, but the specific operation needs to be adjusted according to the actual situation.

The work of the piston compressor is completed by the continuous change of the working volume of the cylinder, the valve and the piston that reciprocates in the cylinder.

If the volume loss and energy loss in the actual operation of the piston compressor are not considered (i.e., the ideal working process), the work completed by the piston compressor crankshaft for each rotation can be divided into suction and exhaust processes.

How piston compressors work.

Compression process: the piston moves upwards from the bottom dead center, the suction and exhaust valves are in a closed state, the liquid leaks, the gas is compressed in the closed cylinder, and the pressure and temperature gradually increase until the gas pressure in the cylinder is equal to the exhaust pressure due to the gradual reduction of the cylinder volume. The compression process is generally regarded as an isentropic process.

Exhaust process: the piston continues to move upward, so that the gas pressure in the cylinder is greater than the exhaust pressure, then the exhaust valve is opened, and the gas in the cylinder is pushed by the piston to discharge the cylinder into the exhaust pipe at equal pressure until the piston moves to the top dead center. At this time, due to the spring force of the exhaust valve and the gravity of the valve search piece itself, the exhaust valve is closed and the exhaust is over.

1. Direct start.

The main application is wide orange slow in the low-power air compressor, the starting current is generally 7-8 times the rated current, and the starting moment is more harmful to the power grid, usually composed of contactor, air opening, and thermal relay.

2. Star triangle start.

The starting current is 3-4 times of the rated current, and the starting current is smaller than the direct starting current; During the star angle switching, there will be a spike current of about 4-6 times the rated current; At present, due to cost reasons, this method is widely used in the start and stop of air compressors.

3. Soft start.

The soft starter is used to control the main motor of the unit, and the control circuit is triggered by the gate of the thyristor to control or limit the starting current of the motor, and the starting current is 2-3 times of the rated current, and the start is relatively stable. The soft start mode can not regulate the speed, and can not do anything for the corresponding compressor speed regulation and energy-saving mode, and the soft start integrates a variety of protection functions, which is simpler and easier to maintain, and the integrated communication port is easy to access the overall system.

4. Frequency conversion start.

The starting current is small, the required grid capacity is the smallest, the starting is the smoothest, the compressor speed can be adjusted, the speed of the compressor can be adjusted according to the actual load, and the energy saving is realized Compared with the soft starter, the protection is more abundant, the diagnosis is easier, and the interpersonal interface is simple and easy to operate.

5.Drive all-in-one machine.

The starting current is small (2-3 times), the impact on the motor and the head is very small, the microcomputer intelligent control technology is adopted, the system automatically collects the temperature, ambient temperature and customer gas consumption of the air compressor on site, and scientifically controls the start and stop time according to the air compressor plus and unloading operation curve, and realizes the maximum unloading and shutdown of the air compressor under the condition of protecting the motor and the head and ensuring the user's safe air consumption.

The air compressor operation procedures and safety operation procedures are as follows:

1. The driver should be familiar with the structure, performance, working principle and other technical characteristics of the air compressor he operates.

2. Preparation and inspection before starting: no loosening of fastening bolts; There is no breakage, job hopping, and twisting of the conveyor belt; The oil quantity is suitable for age, the mail route is smooth, and the oil quality is clean; The cooling water is smooth, sufficient and clean; The instruments are complete and reliable; The motor slip ring and front brush are in good contact, and there is no jamming and no burns.

3. Air compressor starting steps: open the cooling water path; Open the upper valve of the exhaust pipe between the air compressor and the air bag; starter motor; Open the three-way valve and turn on the atmosphere.

4. The air compressor is operating normally, and it should be regularly inspected: the temperature rise of each heating part is the source of the situation; Values of each instrument; motor and air compressor operation conditions; the working condition of the oil injector and pressure regulator; Whether there is water leakage, air leakage, oil leakage; Whether the safety protection and automatic control devices are sensitive and reliable.

5. Normal shutdown of the air compressor: close the three-way valve and cut off the atmospheric path; Stop the motor from running; When the cylinder temperature drops to room temperature, turn off the cooling water; Close the upper valve of the exhaust pipe between the air compressor and the air bag.

6. In the following cases, the machine should be shut down urgently: the air compressor or motor has faulty abnormal noise and abnormal vibration; The cooling water is abnormal, and the outlet water temperature is excessive.

Over 40 ; The motor is smoking, emitting fire, or the motor ammeter indicates that the limit is overrun; The pressure of the oil pump is not enough, and it drops below MPa; Failure of protective devices and instruments.

7. The emergency shutdown can be directly powered off and shut down, and the power supply should be disconnected due to power outage.

8. Put the oil (water) in the air bag twice per shift, and try the safety valve and water cut-off protection once.

9. Fill in and keep the operation diary truthfully.

The air compressor operation procedures and safety operation procedures are as follows:

Air compressor is one of the main mechanical power equipment of many enterprises, and it is very necessary to maintain the safe operation of air compressor. Strict implementation of air compressor operating procedures, not only helps to extend the service life of the air compressor, but also can ensure the safety of air compressor operators.

Before the air compressor operation is completed, the following issues should be noted:

Keep the lubricating oil in the oil pool within the scale range, and check that the oil volume in the oil injector should not be lower than the scale mark value before the air compressor is operated. Check whether the moving parts are flexible, whether the connecting parts are tight, whether the lubrication system is normal, and whether the motor and electrical control equipment are safe and reliable. Before the operation of the air compressor, check whether the protective devices and safety accessories are intact and complete.

Check that the exhaust line is unblocked. Connect the water source and open the water inlet valves to make the cooling water unblocked.

When operating the air compressor, it should be noted that before starting for the first time after long-term shutdown, the car must be checked to pay attention to whether there is any impact, jamming or abnormal sound. The machinery must be started in the no-load state, and the air compressor must be gradually put into load operation after the no-load operation is normal. When the air compressor is operating, after normal operation, it should always pay attention to the readings of various instruments and adjust them at any time.

During the operation of the air compressor, the following conditions should also be checked: whether the temperature of the motor is normal, and whether the readings of each meter are within the specified range. Whether the sound of each part is normal.

Whether the suction valve cover is hot and whether the sound of the valve is normal. Whether the various safety protection equipment of the air compressor is reliable.

1.Whether the signals are normal.

2.Whether the drainage system is in good working order.

3.Whether the pressure of the air compressor operation is maintained in between.

4.Look at the operation of the dryer, observe the pressure of the high and low pressure end of the refrigerant, and whether the pressure on each instrument and pipeline is indicated in the normal operating position.

5.Remove the impurities in the stop valve under the dryer water separator once per shift6When the air consumption is too large, two air compressors should be started to ensure the normal operation of each equipment7

The precision filter is drained once a week, and the main filter is cleaned once a week8Calibrate the pressure gauge and safety valve.

Treatment method: check whether the specifications of the lubricating oil and the amount of oil meet the requirements, and whether the cooling water is 6The dryer drains water and turns it off when the water is drained.

1.Press the off button of the air compressor and the air compressor stops5When there is an abnormality or abnormal sound during the operation of the air compressor, press the emergency stop button to stop the air compressor, and the above is the operation method and precautions.