In order to ensure the operation performance of the elevator, ensure the normal and reliable operation of the elevator hydraulic system, and control the hydraulic oil pollution. The main measure to control the pollution of the elevator hydraulic system is to reasonably select the filter ratio of the oil filter. The following section will give you a detailed analysis of how to control the hydraulic oil pollution of the elevator?

1、控制升降貨梯液壓油的工作溫度，液壓油工作溫度過高對液壓系統(tǒng)的工作元件不利，同時會使液壓油加速氧化。一般機械液壓系統(tǒng)的工作溫度控制在65℃以下，工程機械液壓系統(tǒng)工作溫度以控制在80℃以下。控制液壓油的工作溫度主要是對液壓系統(tǒng)的冷卻器性能的控制，整個液壓系統(tǒng)液壓油油量的合理控制，液壓系統(tǒng)元器件負荷及轉速的控制。

1. Control the working temperature of the hydraulic oil of the elevator. Too high working temperature of the hydraulic oil will be detrimental to the working components of the hydraulic system, and will accelerate the oxidation of the hydraulic oil. The working temperature of general mechanical hydraulic system shall be controlled below 65 ℃, and that of construction machinery hydraulic system shall be controlled below 80 ℃. The control of the working temperature of the hydraulic oil mainly refers to the control of the cooler performance of the hydraulic system, the reasonable control of the hydraulic oil volume of the entire hydraulic system, and the control of the load and speed of the components of the hydraulic system.

2、升降貨梯元件和系統(tǒng)在加工和裝配過程中進行清潔，元件在加工制造中，每一工序都對加工中殘留的污染物進行凈化;元件裝配前進行清潔處理，裝配后進行嚴格的清潔和檢驗；油箱和管道在去除毛刺、焊渣等污染物后，需進行酸洗以去除其表面氧化物；對初裝好的液壓系統(tǒng)作循環(huán)沖洗，并定時從系統(tǒng)中取樣分析，循環(huán)沖洗直系統(tǒng)清潔達到要求。

2. The components and systems of the elevator shall be cleaned during processing and assembly. During the processing and manufacturing of the components, the residual pollutants in the processing shall be purified and removed in each process; The components shall be cleaned before assembly and strictly cleaned and inspected after assembly; After removing burrs, welding slag and other pollutants, oil tanks and pipes shall be pickled to remove their surface oxides; Circulating flushing shall be carried out for the initially installed hydraulic system, and samples shall be taken from the system regularly for analysis. Circulating flushing shall be carried out until the system is clean and meets the requirements.

3、防止升降貨梯污染物混入液壓系統(tǒng)，油箱要合理密封并裝設能的空氣濾清器以防止塵土、水分的進入；注入新油經過的過濾，系統(tǒng)的回油也應進行的過濾；管路接頭等連接處密封嚴密，防止塵土、水分和空氣進入液壓系統(tǒng)；活動件裝有防塵密封裝置。

3. Prevent the pollutants from the elevator from mixing into the hydraulic system. The oil tank shall be properly sealed and equipped with an effective air filter to prevent dust and moisture from entering; Filter the injected new oil and the return oil of the system; Pipe joints and other connections shall be tightly sealed to prevent dust, moisture and air from entering the hydraulic system; The moving parts are equipped with dust sealing devices.

4、升降貨梯液壓油的過濾和凈化，液壓油過濾器是液壓系統(tǒng)中控制油液污染的重要元件，濾油器的應用保證過濾精度符合系統(tǒng)的使用要求，由流體阻力引起的壓力損失應盡可能小，并應具有足夠的油垢容量；定時對濾油器進行檢查和凈化。液壓系統(tǒng)油液的污染度隨著外界污染顆粒侵入率和系統(tǒng)內各種磨損顆粒數的增加而增大，隨著過濾比的增大而減小，因此合理選擇過濾比可地降低系統(tǒng)的污染度。固體顆粒是工程機械液壓系統(tǒng)污染的主要來源，通過合理選擇濾油器的過濾比是控制系統(tǒng)污染的主要措施。

4. Filter and purify the hydraulic oil of the elevator. The hydraulic oil filter is an important element in the hydraulic system to control oil pollution. The application of the oil filter ensures that the filtering accuracy meets the operating requirements of the system. The pressure loss caused by the fluid resistance should be as small as possible, and it should have sufficient oil dirt capacity; Check and purify the oil filter regularly. 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, the reasonable selection of the filtration ratio can reduce the pollution degree of the system. Solid particles are the main source of pollution in the hydraulic system of construction machinery. The main measure to control the system pollution is to reasonably select the filtration ratio of the oil filter.

5、定期檢查和更換升降貨梯液壓油，液壓油在使用過程中，污染物的侵入會對液壓系統(tǒng)造成不良的影響，要對液壓油污染進行的控制，定期對各密封處、接頭處進行檢查處理，對液壓系統(tǒng)的液壓油進行檢查分析，還要定期更換液壓油。更換液壓油時將舊液壓油放凈，整個液壓系統(tǒng)先清潔后，再注入新的液壓油。

5. Regularly check and replace the hydraulic oil of the elevator. During the use of the hydraulic oil, the invasion of pollutants will cause adverse effects on the hydraulic system. Control the pollution of the hydraulic oil, 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, drain the old hydraulic oil, clean the entire hydraulic system first, and then inject new hydraulic oil.

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