Technology

Maintenence chedule of desicant air dryer (heatless type)

Compressed air system in factory plays an important role. In order to ensure the stable operation during the manufacturing process, the regulary maintenance is nescessary . However, there are many different problems in fact such as: Air compressors, dusty air dryers, high engine room temperatures, unsecured wind convection ... lead to reduce using time of compressor accessories (air filter, oil filter, oil separator ...). On the other hand, the recommended maintenance in some factories is not seriously followed and there are deviations. To extend the life of the machine as well as compressor components and ensure operator safety Air compressors are very important to maintain regularly and technically correct.Air compressors, dusty air dryers, high engine room temperatures, unsecured wind convection ... lead to reduced use time of compressor accessories (air filter, loc oil, oil separator ...). On the other hand, the maintenance (maintenance) recommended by the manufacturer in some factories is not guaranteed and there are deviated. To lengthen longevity of mạchine as well as compressor components and ensure operator safety , air compressors are very important to maintain regularly and technically .

Instruction for operation of Handsome II air compressor

Instruction for operation of Handsome II air compressor
Hitachi air compressor maintenance

Hitachi air compressor maintenance

Minh Phu Machinery and Technical Services Co., Ltd specializes in repair, maintenance and supply of parts for Hitachi air compressors with high quality, reliability and long-term warranty. Please call Minh Phu 0919232826 for more details. Belows are some pictures of repair and maintenance Hitachi air compressors.
Supplier of Micos air compressor oil

Supplier of Micos air compressor oil

Micos air compressor oil is the screw air compressor oil series with viscosity of VG 32 , good thermal stability that will meet all types of air compressors working in the most harsh temperature conditions, produced by GS Caltex Corp Korea, one of the world's largest industrial oil producers.
Hanshin air compressor maintenance

Hanshin air compressor maintenance

Công ty TNHH máy và dịch vụ kỹ thuật Minh Phú cung cấp các dịch vụ sửa chữa, bảo dưỡng máy nén khí Hanshin. Cung cấp phụ tùng hao mòn: dầu máy nén khí, lọc tách dầu, lọc dầu, lọc gió, van áp suất... dùng cho máy nén khí Hanshin như : Máy nén khí Piston dòng NH, GH, H, Máy nén khí trục vít dòng GRH2, GRH3, GCH, máy nén khí không dầu AL2 120 ....

Working safely with compressed air tank

Wednesday - 02/01/2019 02:04

Working safely with compressed air  tank

 

Safely using  of compressed air tank is a very important issue, compressed air tank before being used must be tested by KTAT, registered for use following regulations. Users must hand over the managing responsibility  the compressed air tank to the equipment manager in writing. Operating of thetanks is only given to people from 18 years old or older, who are physically fit and well-trained.  They must be assigned by the employer in writing.

binh chua khi nen 1Some risks can happen when working with compressed air tank.

Pressure explosion: There is a risk of explosion when heated, fallen, or impacted. . . or when the bottle is corroded, pore excessively.
Risk of explosion of chemicals, leakage of toxic substances contained in bottles.
Electric shock: The risk of electric leakage of motor shells, failed insulation and wires, ...

SAFETY RULES OF WORKING WITH COMPRESSED AIR TANK

Safely using  of compressed air tank is a very important issue, compressed air tank before being used must be tested by KTAT, registered for use following regulations. Users must hand over the managing responsibility  the compressed air tank to the equipment manager in writing. Operating of thetanks is only given to people from 18 years old or older, who are physically fit and well-trained.  They must be assigned by the employer in writing.
The compressed air tank must have the following safety devices:

Relief valve: : Properly install following design. The area of relief valve'svent-hole must not cut down. 
Pressure gauge: Pressure gauge should be equiped in compressed air tank.
Manometers must be designated  annually
Compressed air tannk  must be located at least 5 meters away from heat sources, not placed in flammable or explosive areas.
It is forbidden to place in or near to inhabited houses, public buildings or living facilities:
The containers contain non-corrosive, toxic or explosive substances with PV numbers> 10000 (P in Kg / cm2, V in liters)
The containers contain corrosive, toxic or explosive substances with PV> 500.
- For portable compressed air containers: Do not arbitrarily displace the machine and use the machine for other purposes without the consent of the device manager. Before moving the vessel, cut off the power and discharge the pressure in the tank.

CHECK COMPRESSED AIR TANK WHILE OPERATING

-Persons directly operating the tanks must regularly check the status of the operation  of the measuring instruments: pressure gauges, safety valves, pressure control relays. Operate the tank safely according to the factory's process.
-At the beginning of the operation, when the pressure in the tank reaches 0.5 (1kg / cm2, the operator needs to pull the safety valve lightly toventilate the safety valve and open the bottom valve to discharge the condensate or the remained oil at the bottom. After each working shift, the residue and standing water in the tank must be discharged
- Periodically clean the air filter of the compressor at least once every two months to prevent dust and impurities from entering the air suction pipes.
Disallowance
1. Welding, repairing cylinders and parts  of the tank while the tank is under pressure.
2. Insert a brake, add heavy objects or use any methods to add the load of the relief valve when the tank is operating.
3. Use a vessel that exceeds the technical specifications allowed by the technical safety inspection agency for the device. Do not operate the machine when the cover of the motor is not installed, when the relief valve is not perfect, the pressure gauge and relay operate incorrectly.

If the copressed air tank have some symptoms, immediately stop

a.When the pressure in the tank increases beyond the permitted level even though other requirements are guaranteed. b.When the safety components are not perfect.
c.When it is found that the main pressure-bearing parts of the tank have significant cracks, bulges, rust, steam, water in joints,broken welds and pads, ...
d.When there is a fire threatening to the pressure vessel. e.When the pressure gauge is damaged and unable to determine the pressure in the vessel. Other cases as specified in the operating procedure of the factory.  

The causes of labour accident

Unsafe tank containing compressed air The compressed air tank are not audited to technical safety inspection, not registered for use. The tanks have been repaired not in accordance with the technical standards of safety , pressure vessels, on vessels without pressure gauges, relief valves. CO2 tank exploded the all bottom welding lines. The compressed air reservoir is corroded, the thinnest place is only about 1mm (compressed air tank is designed to have a 3.5cm body thickness). The compressed air containers are exploded due to not being able to withstand the working pressure of the vessel.

Minh Phu provides maintenance and repair services for air compressors, in addition Minh Phu also provides spare parts for air compressors with high quality at reasonable prices. For further information, please contact (+84)919 23 28 26. Sincerely thank you for your interest and your trust of our service. Compresses air tank,Working safely with compressed air  tank,

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