Hydraulic systems in use in the oil Notes

Date： 1970-01-01

Hydraulic system Caution use of oil, about the following aspects:

1. contamination residue, mainly refers to hydraulic components and piping, tanks in the manufacturing, storage, transportation, installation and maintenance process, into the sand, iron, abrasives, welding slag, rust sheets, cotton yarn and dust, though after cleaning, but clean and left behind causing hydraulic fluid contamination.

2. The invasion was contamination of the hydraulic actuator in the work environment contaminants, such as air, dust, water droplets trapped by all possible entry points, such as exposed piston rod, the fuel tank vent and the filling hole or the like into the hydraulic system caused oil contamination.

3. The product of pollution, mainly referring to the hydraulic drive system hydraulic fluid metal particles produced during operation, the sealing material wear particles, paint, water, oil and bubble gum deterioration after the deterioration caused by pollution.

How to control the pollution of oil:

1. To prevent, reduce the external pollution, the hydraulic drive system before assembly, after must undergo a rigorous cleaning, filling and draining the hydraulic fluid in the hydraulic system and the dismantling process, the container should be kept, funnel, pipe fittings, interfaces, etc. clean to prevent dirt from entering.

2. Filter, filter, filter out impurities generated by the system, the finer the filter, the higher the hydraulic fluid cleanliness class, life will be longer element should install the appropriate precision filter in the corresponding parts of the hydraulic system, and to regular inspection, clean or replace the filter.

3. Control of the hydraulic oil temperature, hydraulic fluid operating temperature is too high will accelerate the oxidative deterioration to produce all kinds of raw product, shortening the useful life, so you want to limit the maximum temperature of the hydraulic fluid usage, hydraulic systems requirements ideal temperature is 15-55 ℃, should not normally exceed 60 ℃.

4. Regularly check and replace the hydraulic oil, should be based on the requirements of hydraulic equipment operating instructions and maintenance procedures of the relevant provisions, in accordance with the company's instructions for using the system to replace the hydraulic oil, hydraulic oil tank cleaning, rinse the hydraulic system and hydraulic pipes element.

5. waterproofing, drainage, fuel tanks, oil cooler piping, oil storage containers should be well sealed, no leakage, drain valve at the bottom of the tank should be set up by the oil sewage matter milky, water separation measures should be taken.

6. To prevent air from entering, the rational use of the exhaust valve to ensure that the hydraulic system, in particular the pump suction line completely sealed, as far away from the system back to the oil pump suction port for the air to escape back to the oil sufficient time to improve the back hose nozzle should be chamfered surface and stretch into the tank below the liquid level, to reduce the impact of the flow.

Prev： On the prospects of China's development of hydraulic stand
Next： Enhance the soft power to strengthen the enterprise culture construction doors