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How to adjust the size of the air compressor pressure

There are two screws on the pressure switch of the air compressor, one is used to adjust the upper limit of pressure, and the other is used to adjust the lower limit of pressure。Turn it up clockwise, turn it down anticlockwise。The specific pressure adjustment size of the air compressor is as follows:

1, if it is a resettable type of spring, then there should be a thing at the top that can rotate, turn up to increase the pressure, turn down to reduce the pressure。

2, screw down the top of the safety valve, but not only tighten one circle, slowly adjust。But it's dangerous。

3、The safety pressure of the safety valve shall be adjusted by the local technical supervision department。

Generally speaking, air compressors start automatically at low pressure and stop automatically at high pressure。After entering the air compressor control module, you can find the parameter Settings and then enter the pressure regulation。It should be noted that because the pressure of the air compressor is set by the factory, it belongs to the manufacturer's parameters, so if you want to adjust the pressure, you need to have the manufacturer's password。The reason for this is to prevent air compressor failure and shutdown caused by user misoperation, and to protect the air compressor head and oil and gas separation barrel。The configuration of the 10 kg air compressor and the 8 kg air compressor is slightly different。
Therefore, if you want to adjust the pressure from the factory to 10 kg air compressor, it is not possible。But it's okay to keep the pressure down。However, it must be carried out under the guidance of professional personnel, otherwise the air compressor is easy to fail!The air compressor automatically starts at low pressure and stops at high pressure。Whether it is a piston or a screw, there is usually a pressure switch or pressure sensor to achieve automatic control。Therefore, if you need to adjust the pressure of the air compressor, just adjust the range of the pressure switch and the starting pressure set above the sensor。Pressure switches have a range and DIFFE。Adjust the range as needed, and the differential usually does not move。If the pressure sensor is to be adjusted, it only adjusts the set start-stop pressure value, not the pressure sensor itself。If there is a display panel above the air compressor, there is usually a set pressure where the values are adjusted to change the start and stop pressures。There are two kinds of pressure regulation for air compressors。One is that the pressure difference is fixed by the switch itself, which only adjusts the automatic stop pressure and the maximum pressure。There are two flat head screwdriver debugging knobs on the switch, both knobs must be adjusted in the same way (otherwise they will move together to stop, stop and start, burning electrical equipment)。The other is the starting pressure (low pressure) and the stopping pressure (high pressure), which is not easy to adjust compared to the former
When commissioning the air compressor in the factory, adjust to the specified pressure according to the customer's needs, and then set the pressure difference。For example, a compressor starts pumping gas to an air storage tank。When the pressure is 10kg, the air compressor will be stopped or unloaded。When the pressure is 7kg, the air compressor will start again。Different air compressor switches have different adjustment methods。One is that the pressure difference is fixed by the switch itself, and only the automatic stop pressure is adjusted, that is, the z* high pressure。There are two flat-head screwdriver debugging knobs on the switch, and both knobs must be adjusted in the same way, otherwise they will move together to stop, stop and start, burning electrical equipment。The other is adjustable starting pressure (low pressure) and adjustable stopping pressure (high pressure).。
Air compressor pressure regulation:
1, turn the pressure adjustment screw clockwise, while increasing the closing and disconnecting pressure。
2. Rotate the pressure adjusting screw counterclockwise to reduce the closing and disconnecting pressure。
Air compressor differential pressure regulation:
1. Rotate the differential pressure adjustment screw clockwise to keep the closing pressure constant and increase the breaking pressure。
2. Rotate the differential pressure adjustment screw counterclockwise to keep the closing pressure unchanged and the disconnecting pressure reduced。
The above is about how to adjust the pressure of the air compressor pressure switch。Introduces how to adjust the pressure of the air compressor, the air compressor is best equipped with a pressure gauge, so that you can know which is the upper limit, which is the lower limit, need to adjust how much。There is a combination of AC contactors to achieve the automatic effect of the pressure switch。

2023.02.17

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Analyze the operation sequence of air compressor switching machine

In life, it can be said that air compressors have been very common, but many people are not clear about the switching order when operating。Next, Xiaobian will introduce the operation sequence of air compressor and boot to avoid some safety hazards:

Air compressor boot sequence:

1. Turn on the main air switch。
2. Open the three air switches of air compressor, cold dryer and exhaust fan under the main air switch。
3. Open the emergency stop switch on the operation panel of the air compressor;Press the reset key (to eliminate alarm);Press the green start button until the air compressor starts。
4. Open the drain valve at the bottom of the gas tank, drain the water for about 5 minutes (after draining the water in the gas tank), close the drain valve。
5. Press the start button on the operation panel of the cold dryer until the cold dryer starts (green light)。
Startup note:
1, carefully read and understand the attached screw air compressor operating instructions
2. Install the screw air compressor according to the standard, and carefully check whether the fixed device of the air compressor is reliable before starting the machine
3. Check the power supply of the screw air compressor to ensure that it is within the specified range
4, check the tightness of the triangle belt of the twin screw air compressor and whether the coupling installation is normal
5, check the screw air compressor instrument to ensure that the parameters are correct
6, check whether the screw air compressor oil level is normal
7, open the water inlet and drainage valve, start the circulating pump, make the waterway smooth, and check whether there is leakage at the connection (if it is a water-cooled model)
8. Close the load reducing valve
9. If the exhaust pipe is connected with a ball valve, it must be opened
10, check the electrical and screw air compressor motor starting handle is in the starting position
Air compressor machine sequence:
1. Press the emergency stop switch on the operation panel of the air compressor to stop the air compressor。
2. Press the stop button on the operation panel of the cold dryer until the cold dryer stops (green light is off).。
3. Turn off the three air switches of the air compressor, cold dryer and exhaust fan under the main air switch。
4. Turn off the main air switch。
Air compressor machine precautions:
1, if the twin screw air compressor works normally, the normal stop button should be pressed, do not press the emergency stop button, because the emergency stop is bound to harm the machine
2. If the twin-screw air compressor fails during operation, the emergency stop button should be pressed
3, after shutdown, do not forget to cut off the twin screw air compressor power supply
4. Before starting up every morning, condensate should be discharged for the twin screw air compressor
5. When the twin-screw air compressor is stopped and not used, it should be cleaned and maintained and properly placed

6, the long-term storage of the twin-screw air compressor must do a major maintenance before starting up and running, and add an appropriate amount of lubricating oil disc motor head several laps before starting and debugging

2023.02.14

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The cause of water after installing cold and dry equipment in screw air compressor

Air storage tanks, dryers and filters will be installed after the screw air compressor, and the dryer can ensure that the screw air compressor reduces condensate in the production process and ensures the discharge of dry and clean air。If there will be water after being treated by the dryer, there are the following main reasons, and the specific content can be understood:

1, it may be that the air humidity around the screw air compressor station is large。We all know that the air itself has humidity, will contain a certain amount of water, when the air compressor, by the air compressor internal temperature is high, water directly evaporated to form water vapor, and then with the pressure discharged screw air compressor, such as shutdown, the temperature drops, will make water vapor condensate。Therefore, the operating environment humidity of screw air compressor should be low;Or before the screw air compressor is turned on and used, the condensate is discharged。

2, screw air compressor post-processing drying equipment failure。Generally, the pressure dew point of the dry dryer can be 3 ° C, assuming that the temperature of your work site is lower than 3 ° C, there will inevitably be water。Therefore, it is recommended to install an adsorption dryer as a post-treatment drying equipment, so that the pressure dew point can reach -20 ° C without water。
3, the post-treatment drying equipment equipped with screw air compressor can not operate normally。In general, the amount of post-drying treatment equipped by the manufacturer for the user is according to the uniform air consumption equipment, if your instantaneous gas consumption is larger, it will constitute the amount of post-treatment drying equipment is insufficient, resulting in water in the gas。
4, the gas tank itself has the function of water, which contains a lot of water is not discharged, or forget to drain。Periodically open the drain valve under the gas tank to drain the water。
5, air compressor pipeline planning problems。The planned inclination of the compressed air pipeline is not good, and the condensate water in the pipeline is not discharged in time, which will constitute water。

2022.10.29

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Atlas air compressor can not start three reasons

Atlas air compressor can not start normally what is going on？Atlas air compressor manufacturers have sorted out the following three common problems for you, hoping to help you:

1. Electrical problems

(1) In the air compressor gas problem, of course, the air compressor power line connection must be accurate, and the power switch is closed, the fuse is blown, and the power supply voltage can reach 90% or more of the additional voltage。
(2) Check whether the components of the pressure relay of the air compressor are damaged and whether the given value of the pressure relay is appropriate。
2. Operational problems
This is a common mistake made by beginners。For example, when opening, the exit switch is not opened, the exit pressure is set too high, the switch is not restored after checking the circuit, and the voltage and current setting are unreasonable。This kind of common sense error just needs to be corrected, which is hardly a mistake。
3. Mechanical problems
Air compressors usually have active protection devices, and when some parts of the compressor fail, they cannot start normally。Common mechanical diseases that cause air compressors to not open normally include: open button, emergency stop button, main engine problems, control panel problems, transmission belt breakage, etc。
For most air compressors, the factors that cause them to not start normally have the above three aspects。Therefore, users can follow the above process one by one when dealing with these issues。The gradual operation should make the process good。

2023.02.10

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