In order to ensure the operation performance of the cargo elevator, it is necessary to ensure the normal and reliable operation of the hydraulic system of the cargo elevator and control the hydraulic oil pollution. The main measure to control the pollution of the lifting cargo elevator hydraulic system is to reasonably select the filter ratio of the oil filter. Let's give you a detailed analysis of how to control the pollution of the lifting cargo elevator hydraulic oil?
1. Control the working temperature of the hydraulic oil of the lifting cargo elevator. Too high the working temperature of the hydraulic oil is unfavorable to the working elements of the hydraulic system and will accelerate the oxidation of the hydraulic oil. The working temperature of the hydraulic system of general machinery is preferably controlled below 65 ℃, and the working temperature of the hydraulic system of construction machinery is controlled below 80 ℃. The control of the working temperature of the hydraulic oil is mainly to control the performance of the cooler of the hydraulic system, the reasonable control of the hydraulic oil volume of the whole hydraulic system, and the control of the load and speed of the components of the hydraulic system.
2. The components and systems of the cargo elevator shall be cleaned in the process of processing and assembly. During the processing and manufacturing of the components, the residual pollutants in the processing must be purified and removed in each process; Components must be cleaned before assembly and strictly cleaned and inspected after assembly; After removing burrs, welding slag and other pollutants, the oil tank and pipeline shall be pickled to remove their surface oxides; Conduct circulating flushing for the initially installed hydraulic system, and regularly take samples from the system for analysis. Conduct circulating flushing until the system is clean and meets the requirements.
3. To prevent the pollutants of the cargo elevator from mixing into the hydraulic system, the oil tank shall be properly sealed and equipped with high-efficiency air filter to prevent the entry of dust and moisture; The injected new oil must be effectively filtered, and the return oil of the system shall also be effectively filtered; The joints such as pipeline joints shall be tightly sealed to prevent dust, moisture and air from entering the hydraulic system; Movable parts must be equipped with dust-proof sealing devices.
4. For the filtration and purification of the hydraulic oil of the lifting cargo elevator, the hydraulic oil filter is an important element in the hydraulic system to control the oil pollution. The application of the oil filter must ensure that the filtering accuracy meets the requirements of the system, the pressure loss caused by the fluid resistance should be as small as possible, and the oil stain capacity should be sufficient; Regularly check and purify the oil filter. The pollution degree of the hydraulic system oil increases with the increase of the invasion rate of the external pollution particles and the number of various wear particles in the system, and decreases with the increase of the filtration ratio. Therefore, reasonable selection of the filtration ratio can effectively reduce the pollution degree of the system. Solid particles are the main source of pollution in the hydraulic system of construction machinery. Reasonable selection of the filtration ratio of oil filter is the main measure to control system pollution.
5. Regularly check and replace the hydraulic oil of the lifting cargo elevator. During the use of the hydraulic oil, the invasion of pollutants will cause adverse effects on the hydraulic system. To effectively control the pollution of the hydraulic oil, it is necessary to regularly check and deal with the seals and joints, check and analyze the hydraulic oil of the hydraulic system, and regularly replace the hydraulic oil. When replacing the hydraulic oil, the old hydraulic oil must be drained. The whole hydraulic system must be cleaned before injecting new hydraulic oil.
