Oil Filter Sullair Replacement
The compressor is a kind of moving fluid machinery that elevates the low pressure gas to a high pressure gas, and the compressor is the heart of the refrigeration system.In use, it is inevitable to encounter various faults, serious impact on work.In order to make it convenient for you to find...
The compressor is a kind of moving fluid machinery that elevates the low pressure gas to a high pressure gas, and the compressor is the heart of the refrigeration system.In use, it is inevitable to encounter various faults, serious impact on work.In order to make it convenient for you to find the cause for maintenance in time of failure, the following is a summary of the common five types of failures and the reasons for the analysis.
1. Insufficient air displacement.
Insufficient air displacement is one of the most common faults of the compressor, and its occurrence is mainly caused by the following reasons:
(1)Failure of air intake filter: fouling and blocking, reducing the discharge volume;The suction tube is too long and the pipe diameter is too small, which causes the suction resistance to increase and the air volume is affected, and the filter should be cleaned regularly.
(2)Compressor speed reduce causeinsufficient air displacement: air compressor use undeserved, because of the air compressor exhaust is according to certain altitude, suction temperature and humidity, when using it in exceeds the standard on the plateau, inspiratory pressure reducing, insufficient air displacement will reduce.
(3)The air cylinder, piston, piston ring wear seriously, the difference, make the relevant gap increase, the leakage volume increases, affected the discharge volume.When it is normal wear and tear, it is necessary to replace the vulnerable parts in time, such as piston ring etc.Belong to the installation is not correct, clearance is improper to stay, should give correct according to the drawing, if no drawings, preferable experience data, for clearance between the piston and cylinder along the circumference of a circle, such as cast iron piston, clearance value is 0.06/100 ~ 0.09/100 of the diameter of the cylinder;For aluminum alloy piston, the clearance is 0.12/100 ~ 0.18/100 of diameter of air diameter;A small value of the alloy piston for a steel piston.
(4)The stuffing box is not strict, and the air leakage reduces the air volume.The reason for this is that the stuffing box itself is not suitable for manufacturing.Secondly, it may be that the piston rod and the stuffing box center are not good in the installation, causing the leakage of wear and tear, etc.It is usually added to the stuffing box to lubricate, seal and cool.
(5)The influence of the compressor suction and exhaust valve on the exhaust volume.The valve seat and valve disc fall into the metal debris or other debris, resulting in the closure of the loose, forming a leak.This not only affects the volume of air displacement, but also affects the pressure and temperature changes.The problem may be caused by a manufacturing quality problem, such as a disc warping, and the second is a leak due to the serious wear and tear of the seat and valve disc.
(6)The valve spring force does not match the strength of the gas.Stretch too makes the valve open slowly, stretch too weak valve closed timely, which not only affects the volume, but also will affect the increase of the power, and the life of the valve valve, spring.At the same time, it will affect the change of gas pressure and temperature.
(7)The pressure of the pressure valve is improper.Pressure force is small, flat, too tight or not, of course, can make the valve cover deformation, damage, general compression force calculate under type: p = k PI / 4 D2P2, D the cavity diameter of valve, P2 as the largest gas pressure, k is greater than 1 value, generally take 1.5 ~ 2.5, low k = 1.5 ~ 2.0, high pressure when k = 1.5 ~ 1.5. So take k, proved to be good.The valve has a failure, the bonnet must be hot, and the pressure is not normal.
Initial pressure difference<0.02MPa
Residual oil amount<3PPM
※REMARK :We can provide the replacement part of famous brands .