Key reminders of the maintenance and operation steps of the valve during operation: the valve surface, valve stem, valve stem nut, trapezoidal screw, valve stem nut, rolling part of the support frame, transmission gear, worm gear, and worm are very prone to accumulating dust and oil. , material residues and other stains, causing damage and corrosion to the valve.
Therefore, the valve is often cleaned, and the general dust on the valve can be scrubbed with a soft brush and air compression, and even the valve surface, the valve stem, the valve stem nut ladder screw, the valve stem nut, the rolling part of the support frame, the transmission gear, Parts such as worm gears and worms are very easy to accumulate dust, oil, material residues and other stains, causing damage and corrosion to the valve. Therefore, the valve is often cleaned, and the general dust on the valve can be scrubbed with a soft brush and air compression, or even cleaned with a copper brush, until the production and processing surface and the surface have a metallic texture, and the paint surface shows the color tone of the paint. The steam trap shall be undertaken by full-time personnel and shall be inspected at least once per shift. The ethical bottom line for opening wash valves and steam traps on time, or dissolving and cleaning on time to prevent stains from clogging the valve. Valve lubrication, maintenance of valve ladder screws, valve stem nuts, and rolling parts of support frames, rolling bearing twist drills, transmission gears, and meshing parts of worm gears all require excellent lubrication standards. Reduce mutual friction and avoid mutual damage. If there is no oil standard or grease, parts that are prone to damage or loss in actual operation should be modified to the air intake system and returned to the oil passage to communicate. The lubricating parts should be refueled on time according to the details. The high-temperature valve that is often opened is suitable for refueling once a week. The refueling cycle time of the cryogenic valve is likely to be a bit long if it is not opened frequently. The lubricating fluid contains oil, unsalted butter, molybdenum disulfide, high-purity graphite, etc. Oil is not suitable for high-temperature valves.
Unsalted butter is also not suitable. They will subside due to high heat melting. High-temperature valves are suitable for adding molybdenum disulfide and wiping flake graphite. External lubricating parts (such as trapezoidal threads, teeth, etc.). If oil such as unsalted butter is used, it is very easy to be polluted by dust environment; if molybdenum disulfide and high-purity graphite are used for lubrication, the actual effect of dust and lubrication is not as good as that of unsalted butter; plaster of paris is not easy to apply immediately; if a little oil is used Or a water-generated cream can be applied. Oil tight rotary plug valve should be refueled at the required time. Otherwise, it is very easy to damage and leak. Maintain the extremes of several things. The anchor bolts on the flange and the support frame must be filled and cannot be loosened. When the main shaft is lost, the main shaft cannot be replaced by a cooked plate, and should be matched with the other immediately. The battery charging pressure difference should not be skewed or tighten the gap in advance. In conditions susceptible to environmental pollution, such as rain, snow, dust, etc., the valve should be equipped with a protective film. The ruler on the valve must be detailed and precise. Lead rods, stoppers, and pneumatic fittings for valves shall be detailed. The thermal insulation jacket should not slide down or split. In addition, in order to prevent the valve from being dirty or damaged, do not knock on the valve or the supporting point, hang objects or make force marks. In particular, non-metallic mesh doors and pig iron valves should be more taboo. Maintenance of daily maintenance of electrical equipment. The protection of electrostatic field values is usually carried out at least once a month. Maintenance content: clean appearance, no dust, soda water, and diaphragm vacuum pump environmental pollution. The raised surface should be firm and severe. The lubricating parts should be oiled according to the regulations, and the valve nuts should be lubricated with grease. The electrical equipment parts must be detailed and flawless, the control switches and thermal relays cannot be omitted, and the indicator lights should be properly labeled.
