denair portable air compressor

   denair portable air compressor is widely used in mining, water conservancy, transportation, shipbuilding, urban construction, energy, military industry and other industries. To introduce you to the advantages of the portable air compressor:

    1, high reliability, less compressor parts, no wearing parts, so portable air compressor is reliable, long life, overhaul interval can be up to 4 ~ 80000 hours;

   2, convenient operation and maintenance: high degree of automation, the operator need not professional training for a long time,portable air compressor can realize the unattended operation;

   3, good dynamic balance: no unbalanced force of inertia, smooth high-speed operation,portable air compressor can achieve without basic operation, especially suitable for used as a mobile compressor, small volume, light weight, covers an area of less;

   4, strong adaptability: with the characteristics of a compulsory gas volume flow is almost not affected by the influence of the exhaust pressure, portable air compressor can keep high efficiency in a wide speed range.

OMAN customers visited our factory

OMAN customers visited denair factory yesterday.they praise the quality of denair srew air compressor.then they already ordered 2 sets screw air compressor.

oman customer visited our factory

denair engineer show air compressor features

full feature air compressor presentation  

large air compressor

Maintenance of Air Filter

　　The air filter is a part to remove the airborne dust and dirt. The clear air after filtering will come into the compressor air end for compressed. Because the inner compressor allows particle smaller than 15μ to be filtered out, if the air filter element is blocked or broken, particles larger than 15μ will come into the inner cycling of screw air compressor, it will short the service life of air filter element and oil-gas separator element. It will also allow many large particles come into the bearing bore directly to accelerate the wear of bearing and enlarge the clearance of rotors, leading to compression efficiency greatly reduced.

　　1. It is better to maintain the air filter every one week. Unscrew the screw on the cover and take out the air filter element. Blow off the dust on the surface of air filter element from inside to outside by 0.2-0.4Mpa compressed air, clean the dirty inside the air filter cover and then install the air filter element. Pay attention to make sure the sealing ring on the head of air filter element tightly to the inner end surface of air filter. The air filter maintenance on the diesel engine of diesel driven screw air compressor should be done at the same time of compressor air filter element maintenance. The maintenance steps are the same.

　　2. Normally the air filter element should be changed every 1000 to 1500 hours. It is suggested to change the air filter element every 500 hours when the compressor is used in very harsh environment, such as mining, ceramics factory, cotton spinning mill, etc.

　　3. When cleaning or changing the air filter element, please pay attention to avoid any foreign matter entering into the air inlet valve.

　　4. Check whether there is any break on the air inlet extension tube, whether there is any loose and leakage on the connection from extension tube to air inlet valve. Repair or changing it when found it.

air filter

　　The air filter is a part to remove the airborne dust and dirt. The clear air after filtering will come into the compressor air end for compressed. Because the inner compressor allows particle smaller than 15μ to be filtered out, if the air filter element is blocked or broken, particles larger than 15μ will come into the inner cycling of screw air compressor, it will short the service life of air filter element and oil-gas separator element. It will also allow many large particles come into the bearing bore directly to accelerate the wear of bearing and enlarge the clearance of rotors, leading to compression efficiency greatly reduced.

　　1. It is better to maintain the air filter every one week. Unscrew the screw on the cover and take out the air filter element. Blow off the dust on the surface of air filter element from inside to outside by 0.2-0.4Mpa compressed air, clean the dirty inside the air filter cover and then install the air filter element. Pay attention to make sure the sealing ring on the head of air filter element tightly to the inner end surface of air filter. The air filter maintenance on the diesel engine of diesel driven screw air compressor should be done at the same time of compressor air filter element maintenance. The maintenance steps are the same.

　　2. Normally the air filter element should be changed every 1000 to 1500 hours. It is suggested to change the air filter element every 500 hours when the compressor is used in very harsh environment, such as mining, ceramics factory, cotton spinning mill, etc.

　　3. When cleaning or changing the air filter element, please pay attention to avoid any foreign matter entering into the air inlet valve.

　　4. Check whether there is any break on the air inlet extension tube, whether there is any loose and leakage on the connection from extension tube to air inlet valve. Repair or changing it when found it.

Screw air compressor post-processing instruction

　　Screw air compressor post-processing instruction

　　1.Don't put screw air compressor in the sun, rain, wind or relative humidity is more than 85%. Don't place screw air compressor to the combustible gases or dust, corrosive environment. Don't put screw air compressor in vibration, condensed water freeze dangerous place. Don't being too close to wall, in order to avoid poor ventilation. To need to be used in corrosive gas environment, should choose copper tube dryer or stainless steel treated by anti-rust dryer heat ware. Should be used at ambient temperature below 40 degrees Celsius.

　　2.the compressed air imports don't wrong. For ease of maintenance, to ensure that maintenance space, should set the by-pass pipe. To prevent the vibration of the screw air compressor to the dryer, the piping weight don't directly on the dryer.

　　3.Don't screw air compressor stand up, don't discount or crushed.

　　4.Power supply voltage allowed fluctuation less than 10% to add and subtract. Should set the appropriate volume of leakage circuit protector. Before use must be grounded,

　　5.The compressed air inlet temperature is too high, the environment temperature is too high (above 40 degrees Celsius), use the traffic over the rated air quantity, voltage fluctuation more than plus or minus 10%, poor ventilation (winter also want to take a breath, room temperature can also rise) cases, such as electric road will play a role, lights out, stop running.

　　6.When the air pressure is higher than 0.15 mpa, often open automatic drainer drain to shut down. The displacement of screw air compressor is too small, drain in an open position, there is air blow out.

　　7.Compressed air quality is poor, such as mixed with dirt and oil, these goods will adhere to in the heat exchanger, lower the work efficiency, and drainage are also prone to failure. Hope in the filter drier, and I will confirm the drainage of not less than once a day.

　　8.Dryer air vents with cleaner to clean once a month.

　　9.Connected to the power, wait for after the operation is stable, then turn on the compressed air. Stop running after, have to wait for more than 3 min to start again.

　　10.If use automatic drainer, often should check whether the drainage function normally. Often should clean the dust on the condenser, etc. To check the pressure of the refrigerant, can determine whether the refrigerant leakage and the ability to person if there is a change. Want to check out the temperature of the condensate is normal.

DENAIR screw air compressor

How to reduce the failure rate of the air compressor

    Air compressor belonging to general equipment, is the production plants indispensable equipment in working condition since the compressor is running, the failure rate is high temperature, high pressure, high speed is inevitable, Many factories are not prepared machine, and that the air compressor in case of failure, it will directly affect the normal production of gas with the floor. How to reduce the failure rate of the air compressor?
   1. Choose high quality air compressor brand air compressor brands on the market a lot, but what choice is a big problem, the North West has been committed to screw air compressor development and production, it can be said to Compressors The new industry benchmark, is your trusted brand air compressor.
   2. Select the appropriate environment to run the air compressor, air compressor operating environment should be: good ventilation, good lighting, good sanitation, space suit.
   3. To ensure proper maintenance of the air compressor, air compressor plant according to the factory setting, timely and effective replacement of the air compressor consumables (air filters, oil filter core, core oil separator, air compressor lubrication oil, belts, etc.)

How to control the single screw compressor leak path

　
　　Spray into the compression chamber of lubricating oil will fill into the leak path, sealing effect, effectively reduce the gas leakage. As to the leakage of oil, it will cut gas volume in suction chamber, heating in gas, directly reduce the displacement. If the gap was filled with lubricating oil, no gas leaks, but relatively games leak path wall of high speed in the viscous shear loss that nots allow to ignore. In addition, the leakage of oil from the low pressure cavity to the high pressure cavity will also cost a certain capability. So on spray oil leakage of single screw air compressor, to consider the sealing oil and viscous shear together lead to the conflict of elements such as power consumption.

　　According to the working process of the single screw compressor internal characteristics and relevant test, can think, value is not as long as the gap is too big, seal oil leakage passage can be extremely well. Then oil instantaneous leakage quantity and viscous shear loss to calculation formula are obtained.

　　Leakage passage, there are two cylinder, the star is next to the tooth surface and screw groove wall leakage of triangle. The area to be able to pass smaller type line planning control. So after their oil and gas leakage is very small.

　　Through Test known, about the two leakage around the vent channel, because the pressure difference before and after its bigger (for suction exhaust pressure difference), even if the fuel injection quantity is larger, the oil is not easy to be sealed completely. Test and calculation indicate after the gas leakage is larger, here is air compressor key elements of displacement and thermal power.

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