經(jīng)常有客戶撥打電話咨詢“各種風(fēng)機的加油方法”!今天，為滿足各位客戶的需求，小編收集整理了回轉(zhuǎn)風(fēng)機、沉水風(fēng)機、羅茨風(fēng)機、離心風(fēng)機的加油方法分享給大家!以便各位客戶參考使用!

　　回轉(zhuǎn)風(fēng)機加油方法

　　根據(jù)回轉(zhuǎn)風(fēng)機型號不同，其油箱位置不同，可以分為兩種。一種是油箱在回轉(zhuǎn)風(fēng)機底座位置(HCC25/60/80/100/125/150系列回轉(zhuǎn)風(fēng)機)，另外一種是油箱在回轉(zhuǎn)風(fēng)機儲氣堡底部位置(HCC30/40/50系列回轉(zhuǎn)風(fēng)機)。分別按照以下三步走即可。

　　一、油箱廢油的處理方法，按照回轉(zhuǎn)風(fēng)機油箱位置不同，分為以下兩種。

　　1、油箱在風(fēng)機底座位置的，用扳手先卸下加油口的油標(biāo)(在風(fēng)機底座上的加油口)，再拆下油過濾器，傾斜風(fēng)機底座，從放油口盡量放盡油箱內(nèi)的廢油。

　　2、油箱是在風(fēng)機儲氣堡底部位置的，用扳手先卸下加油口的螺帽(在儲氣堡底部風(fēng)機加油口)，再拆下油過濾器，然后旋開在儲氣堡底部位置的放油口，從放油口放盡油箱內(nèi)廢油。

　　二、這一步，兩種油箱都是一樣的步驟。拔下風(fēng)機回油管(泄壓管)，取下進(jìn)風(fēng)口空氣過濾器，用手快速正向轉(zhuǎn)動風(fēng)機帶輪10轉(zhuǎn)左右后，從進(jìn)風(fēng)口慢慢倒入清洗機油，同時不斷的正向轉(zhuǎn)動風(fēng)機帶輪，排出所有清洗油。

　　三、油箱加油操作方法，按照油箱位置不同，也分別為以下兩種。

　　1、油箱在回轉(zhuǎn)風(fēng)機底座位置的，完成以上兩個步驟后，再裝上清洗過的油過濾器、回油管，在油箱中注入潤滑油(68號耐磨液壓油)。大概到油箱的3/4處，不超過油標(biāo)尺的刻度線，再擰緊油標(biāo)，注意一定要用扳手?jǐn)Q緊，以免風(fēng)機油箱漏氣漏油。

　　2、油箱在回轉(zhuǎn)風(fēng)機儲氣堡底部位置的，完成以上兩個步驟后，再裝上油過濾器和回油管，再往油箱加潤滑油(68號耐磨液壓油)。加油位置不超過觀察油窗的中心，即觀察油窗的紅點。再擰緊加油口螺帽，也注意一定要用扳手?jǐn)Q緊，以免風(fēng)機漏油漏氣。

　　羅茨風(fēng)機加油方法

　　一、羅茨風(fēng)機使用要求

　　1、輸送介質(zhì)的進(jìn)氣溫度不得大于40℃。

　　2、介質(zhì)中微粒質(zhì)含量不得超過100mgm3，微粒尺寸不得超過*小工作間隙的一半。

　　3、運轉(zhuǎn)中軸承溫度不得高于95℃，潤滑油度不高于65℃。

　　4、使用壓力不得高于銘牌上規(guī)定的升壓范圍或本說明書性能表中規(guī)定的升壓范圍。 5、風(fēng)機葉輪與機殼、葉輪與葉輪間隙出廠時已調(diào)好，重新裝配時要保證該間隙。(間隙過大，影響性能。間隙過小，由于熱膨脹會產(chǎn)生摩擦、碰撞現(xiàn)象。)

　　6、鼓風(fēng)機運行時，主油箱、副油箱油位必須在油位計兩條經(jīng)線之間。

　　二、性能范圍

　　羅茨風(fēng)機性能中的吸入流量是指吸入壓力為標(biāo)準(zhǔn)大氣壓，吸入溫度為20℃，輸送人質(zhì)為清潔空氣時的吸入狀態(tài)流量。(鼓風(fēng)機輸送特殊氣體時，吸入流量需根據(jù)輸送介質(zhì)的分子量、進(jìn)口溫度和進(jìn)排氣口壓力進(jìn)行換算。

　　三、運轉(zhuǎn)方法

　　(一)運轉(zhuǎn)準(zhǔn)備

　　1、徹底清除見機內(nèi)外的灰塵和雜物，并避免混入油。

　　2、檢查進(jìn)出口聯(lián)接部位有無忘記堅固的地方，配管的支承件是否完備，需要冷卻水的風(fēng)機，冷卻水管安裝是否符合要求。

　　3、如果在配管內(nèi)有焊渣和鐵屑等，應(yīng)徹底清除。

　　4、將潤滑油回流到兩條油位線的上線位置(鼓風(fēng)機運轉(zhuǎn)后，油位會稍有下降)，注油過少，會導(dǎo)致齒輪和軸承燒傷;注油過多，往往會引起溫升偏高，造成齒輪和其他部件損壞。潤油一般采用運動粘度220號全損耗系統(tǒng)用油。

　　5、風(fēng)機運轉(zhuǎn)過程中不應(yīng)加油。在運轉(zhuǎn)一周后應(yīng)首次更換新油一個月后第二次更換新油。以后，主、副油箱應(yīng)按期更換潤滑油。

　　6、用手沿旋轉(zhuǎn)方向盤動風(fēng)機聯(lián)軸器，檢查有無異常現(xiàn)象。

　　(二)試運轉(zhuǎn)

　　1、打開進(jìn)、排氣側(cè)閥門，在無負(fù)荷的狀態(tài)下接通電源開頭，核實旋向。需用冷卻水的風(fēng)機接通冷卻水后，方可啟動。

　　2、啟動后空載運轉(zhuǎn)20-30分鐘，檢查有無異常振動及發(fā)熱現(xiàn)象。如果出現(xiàn)異常現(xiàn)象，應(yīng)立即停車，查明原因。異常現(xiàn)象大多由安裝不良或聯(lián)軸器對中不準(zhǔn)引起，也有潤滑油油位不適宜等其它情況。

　　3、然后，在正常負(fù)載情況下運轉(zhuǎn)2-3小時，同時觀察每個部件的溫度和振動。

　　4、運轉(zhuǎn)中須注意電流表的示值，如出現(xiàn)異常應(yīng)立即停車檢查，其原因大多是由葉輪摩擦引起的。

　　(三) 運轉(zhuǎn)中的注意事項

　　1、運轉(zhuǎn)過程中，須經(jīng)常檢查軸承、潤滑油溫度，電流表的示值。風(fēng)機需用冷卻水時應(yīng)檢查冷卻水量是否達(dá)到規(guī)定的要求。風(fēng)機為填料密封時，還應(yīng)檢查密封的泄漏情況，當(dāng)泄漏嚴(yán)重時，應(yīng)立即更換密封，以免危險氣體泄漏引發(fā)安全事故，且腐蝕氣體的泄漏也會損壞軸承。

　　2、定期檢查，作好記錄。

　　3、停車時，須先卸壓減載，再停車。如操作不當(dāng)，帶負(fù)荷停車或因突斷電停車時，風(fēng)機出口側(cè)系統(tǒng)內(nèi)的高壓氣體會迅速流向低的風(fēng)機進(jìn)口側(cè)(即通常講的“打回流”)，從而造成高壓氣體帶動風(fēng)機葉輪加速反射運轉(zhuǎn)，風(fēng)機葉輪轉(zhuǎn)速越來越高，當(dāng)葉輪速度達(dá)到其極限速度時，就會造成葉輪與機殼碰撞、打碎的惡性事故。特別是化肥廠等輸送易燃易爆氣體的用戶更應(yīng)嚴(yán)格操作，因為風(fēng)機葉輪打壞的同時，往往會伴有爆炸起火等更危險事故的發(fā)生。

　　維護(hù)與檢修

　　一、日常維護(hù)

　　1、運轉(zhuǎn)過程中，應(yīng)特別注意：機殼內(nèi)部葉輪與機殼、葉輪與墻板、葉輪與葉輪之間是否存在摩擦或吸入異物，應(yīng)經(jīng)常檢查及早發(fā)現(xiàn)在的摩擦嚴(yán)重時，會出現(xiàn)機殼局部溫升過高、外表噴漆燒焦現(xiàn)象，此時應(yīng)立即停車。

　　2、在日常工作中，應(yīng)對軸承的溫度、振動和運轉(zhuǎn)聲音等加以注意，經(jīng)常檢查。

　　3、在長期運轉(zhuǎn)中，因葉輪和機殼的銹蝕，致使工作間隙增大，鼓風(fēng)機內(nèi)泄漏加大，機殼溫升排氣溫度增高，風(fēng)機流量降低，此時應(yīng)停機測量間隙 ，采取校正措施。

　　4、冬季寒冷的地帶，需用冷卻水的鼓風(fēng)機停機后，必須放掉冷卻水，防止存水結(jié)冰損壞機器。

　　二、定期檢查

　　1、每日檢查

　　(1) 檢查油位高度。潤滑油過多或過少，都會損壞軸承。

　　(2) 檢查主、副油及軸承部位溫度。

　　(3) 檢查吸入和排出的壓力，可確認(rèn)風(fēng)機的運轉(zhuǎn)工況是否正常。

　　(4) 檢查電機負(fù)荷。若電機負(fù)荷增大，表明存在某種異常狀況，應(yīng)查明原因。

　　(5) 檢查填料密封效果。

　　2、三個月檢查。更換主、副油箱潤滑油，清洗空氣濾清器。

　　3、半年檢查。檢查風(fēng)機管道支承情況。填料密封風(fēng)機應(yīng)檢查密封泄漏情況。

　　4、一年檢查

　　(1) 檢查旋轉(zhuǎn)軸唇形密封圈。

　　(2)檢查葉輪及機殼內(nèi)部，檢查各部間隙。

　　(3)檢查齒輪

　　(4)檢查電機負(fù)荷。若電機負(fù)荷增大，表明存在某種異常狀況，應(yīng)查明原因。

　　(5)檢查填料密封效果。 2、三個月檢查。更換主、副油箱潤滑油，清洗空氣濾清器。

　　離心風(fēng)機加油方法

　　在不同環(huán)境下，離心風(fēng)機使用的潤滑油類型是不同的。與此同時，不同類型的潤滑油，其在不同情況下需要加注的油量也是不同的。因而用戶一定要在實際工況下加注潤滑油。在加注潤滑油時，不僅要注意給軸和軸承座加潤滑油，還要注意給電機增加潤滑油，防止電機因干澀而磨損。

　　適用于極端環(huán)境下的潤滑油：

　　用于高溫環(huán)境，溫度可達(dá)175度;

　　用于低溫環(huán)境，溫度可達(dá)-50度;

　　如果風(fēng)機是在極端環(huán)境下運行，必須要聯(lián)系相關(guān)的廠商服務(wù)中心，尋求指導(dǎo)和相關(guān)信息，以選擇到正確的潤滑劑類型。

　　我們要根據(jù)電機和軸承供應(yīng)商提供的維護(hù)操作指南(包含在風(fēng)機系統(tǒng)文件之中)來正確選擇潤滑電機軸承的油脂。若您對此有任何疑問，請聯(lián)系雙城風(fēng)機服務(wù)中心，尋求指導(dǎo)和相關(guān)信息，以選擇到正確的潤滑劑類型。

　　如果您使用的是雙城風(fēng)機以外的產(chǎn)品，請檢查并確保其特性與先前使用的潤滑油脂特性兼容，否則混入不同特性的油脂，混合后會降低潤滑的性能。如果對此有疑慮，您可以先把軸承座里面的潤滑油脂清理干凈，然后再涂上新的油脂。對軸承和軸承座的注油孔重新注油量要在30%-50%。

　　如果您注油過量，(注入軸承座太多油脂)，軸承運行時會發(fā)熱，也許會導(dǎo)致軸承損壞。

　　再次起動風(fēng)機后，軸承溫度會有一點上升，但是溫度會在1-2小時內(nèi)穩(wěn)定，如果沒有，請立即停止運轉(zhuǎn)，檢查油脂量，如果有必要，請聯(lián)系供應(yīng)商。

　　沉水風(fēng)機加油方法　　

沉水風(fēng)機保養(yǎng)不當(dāng)會減少使用壽命，那么我們在使用前如何保養(yǎng)才能達(dá)到高使用?

　　(1)查易損件。首先把沉水風(fēng)機部分拆下，檢查葉輪、扣環(huán)、軸套、軸承座等易損件是否完好。好的可在裝配機體時繼續(xù)使用，壞的則須更換。

　　(2)換潤滑油。將沉水風(fēng)機吊出水體后，分別打開密封室及電動機內(nèi)部的油孔螺釘，把密封室內(nèi)和電動機內(nèi)部的潤滑油全部放出，更換新油。

　　(3)確保密封。在更換密封室內(nèi)潤滑油時，如果發(fā)現(xiàn)油質(zhì)渾濁，應(yīng)更換整體密封盒或者動、靜密封環(huán)。

　　(4)驅(qū)潮去濕。對絕緣電阻低于0.5Mn的電動機繞組，必須驅(qū)潮去濕，干燥的方法同一般電動機一樣。若密封盒不需要更換，可只將機體的定子部分拆下。一般情況下密封盒部分應(yīng)盡量不拆裝，如確需拆裝，0形橡膠圈必須更換新的。

　　(5)檢查軸承。檢查電動機的上、下軸承，若發(fā)現(xiàn)磨損嚴(yán)重或間隙過大，須及時更換。

　　(6)拆下機殼試運轉(zhuǎn)。使用之前，應(yīng)拆開*上一級機殼，轉(zhuǎn)動葉輪后再合術(shù)文件是否閘啟動，以防部件銹死不能正常啟動而燒毀電動機繞組。

　　(7)確保軸承潤滑。對于沉水風(fēng)機，應(yīng)檢查并在必要時更換上下端蓋軸承室的骨架油封，以確保軸承長期在潤滑良好的狀態(tài)下正常運行。

　　沉水式風(fēng)機的壽命不僅僅在于它自身的質(zhì)量，還要多注重平時的保養(yǎng)維護(hù)。

　　以上便是羅茨風(fēng)機廠家小編所知道了解的“各種”風(fēng)機的加油方法!希望它可以在各種不同風(fēng)機維護(hù)保養(yǎng)中幫助到您!

　　Customers often call to inquire about "refueling methods for various fans"! Today, in order to meet the needs of your customers, Xiaobian mobile phone sorted out the refueling methods of rotary fan, submerged fan and Roots fan, and shared them with you! For your reference!

　　Refueling method of rotary fan

　　According to the different models of rotary fans and the different positions of their oil tanks, they can be divided into two types. One is that the oil tank is at the base of the rotary fan (hcc25/60/80/100/125/150 series rotary fan), and the other is that the oil tank is at the bottom of the air reservoir of the rotary fan (hcc30/40/50 series rotary fan). Follow the following three steps.

　　1、 The treatment methods of the waste oil in the oil tank are divided into the following two types according to the different positions of the oil tank of the rotary fan.

　　1. If the oil tank is located at the fan base, use a wrench to remove the oil pointer at the oil filler (the oil filler on the fan base), then remove the oil filter, tilt the fan base, and try to drain the waste oil in the oil tank from the oil drain.

　　2. The oil tank is located at the bottom of the air reservoir of the fan. Use a wrench to remove the nut of the oil filler (at the oil filler of the fan at the bottom of the air reservoir), then remove the oil filter, and then unscrew the oil drain at the bottom of the air reservoir to drain the waste oil in the oil tank from the oil drain.

　　2、 This step is the same for both tanks. Unplug the fan oil return pipe (pressure relief pipe), remove the air filter at the air inlet, quickly rotate the fan pulley in a positive direction by hand for about 10 revolutions, and then slowly pour cleaning oil from the air inlet. At the same time, continuously rotate the fan pulley in a positive direction to discharge all cleaning oil.

　　3、 The fuel tank refueling operation methods are also the following two according to the different positions of the fuel tank.

　　1. If the oil tank is at the base of the rotary fan, install the cleaned oil filter and oil return pipe after completing the above two steps, and inject lubricating oil (No. 68 wear-resistant hydraulic oil) into the oil tank. About 3/4 of the oil tank, no more than the scale mark of the oil dipstick, and then tighten the oil pointer. Be sure to tighten it with a wrench to avoid air and oil leakage in the fan oil tank.

　　2. If the oil tank is at the bottom of the air reservoir of the rotary fan, install the oil filter and oil return pipe after completing the above two steps, and then add lubricating oil (No. 68 wear-resistant hydraulic oil) to the oil tank. The refueling position shall not exceed the center of the oil window, that is, the red dot of the oil window. Tighten the oil filler nut again, and be sure to tighten it with a wrench to avoid oil and gas leakage of the fan.

　　Refueling method of Roots blower

　　1、 Operating requirements of Roots blower

　　1. The inlet air temperature of the transmission medium shall not be greater than 40 ℃.

　　2. The content of particulate matter in the medium shall not exceed 100mgm3, and the maximum particle size shall not exceed half of the minimum working gap.

　　3. During operation, the bearing temperature shall not be higher than 95 ℃, and the lubricating oil degree shall not be higher than 65 ℃.

　　4. The operating pressure shall not be higher than the pressure rise range specified on the nameplate or the pressure rise range specified in the performance table of this manual. 5. The clearance between fan impeller and casing, impeller and impeller has been adjusted before leaving the factory, and it should be ensured during reassembly. (if the gap is too large, it will affect the performance. If the gap is too small, friction and collision will occur due to thermal expansion.)

　　6. When the blower is running, the oil level of the main oil tank and auxiliary oil tank must be between the two longitude lines of the oil level gauge.

　　2、 Performance range

　　The suction flow in the performance of Roots blower refers to the suction state flow when the suction pressure is standard atmospheric pressure, the suction temperature is 20 ℃, and the delivery hostage is clean air. (when the blower transports special gas, the suction flow shall be converted according to the molecular weight of the transmission medium, inlet temperature and inlet and outlet pressure.

　　3、 Operation method

　　(1) Preparation for operation

　　1. Thoroughly remove the dust and sundries inside and outside the machine, and avoid mixing oil.

　　2. Check whether the inlet and outlet connections are firm, whether the supporting parts of the piping are complete, whether the fans that need cooling water, and whether the installation of cooling water pipes meet the requirements.

　　3. If there are welding slag and iron filings in the piping, they should be completely removed.

　　4. Return the lubricating oil to the upper line of the two oil level lines (the oil level will drop slightly after the blower runs). Too little oil will cause gear and bearing burns; Too much oil will often cause high temperature rise and damage to gears and other components. Lubricating oil generally adopts kinematic viscosity 220 full loss system oil.

　　5. Do not add oil during the operation of the fan. Replace the oil for the first time after one week of operation and for the second time after one month. In the future, the lubricating oil of the main and auxiliary oil tanks should be replaced on schedule.

　　6. Move the fan coupling by hand along the rotating steering wheel to check for abnormalities.

　　(2) Commissioning

　　1. Open the inlet and exhaust side valves, turn on the power supply under no-load state, and verify the rotation direction. The fan requiring cooling water can be started only after the cooling water is connected.

　　2. Operate without load for 20-30 minutes after startup, and check whether there is abnormal vibration and heating. In case of any abnormal phenomenon, stop the vehicle immediately to find out the cause. Most of the abnormal phenomena are caused by poor installation or misalignment of the coupling, and there are also other situations such as inappropriate lubricating oil level.

　　3. Then, operate under normal load for 2-3 hours, and observe the temperature and vibration of each component at the same time.

　　4. Pay attention to the indicated value of the ammeter during operation. In case of any abnormality, stop the machine immediately for inspection. Most of the reasons are caused by impeller friction.

　　(3) Precautions during operation

　　1. During operation, the temperature of bearing and lubricating oil and the indication value of ammeter must be checked frequently. When the fan needs cooling water, check whether the cooling water volume meets the specified requirements. When the fan is sealed with packing, the leakage of the seal should also be checked. When the leakage is serious, the seal should be replaced immediately to avoid safety accidents caused by dangerous gas leakage, and the leakage of corrosive gas will also damage the bearing.

　　2. Check regularly and make records.

　　3. When parking, you must first unload and reduce the load before stopping. In case of improper operation, shutdown with load or sudden power failure, the high-pressure gas in the system at the outlet side of the fan will quickly flow to the low inlet side of the fan (usually referred to as "backflow"), which will cause the high-pressure gas to drive the fan impeller to accelerate the reflection operation, and the fan impeller speed will be higher and higher. When the impeller speed reaches its limit speed, it will cause a vicious accident of collision and breakage between the impeller and the casing. In particular, users who transport flammable and explosive gases such as fertilizer plants should operate more strictly, because when the fan impeller is broken, more dangerous accidents such as explosion and fire often occur.

　　maintenance and overhaul

　　1、 Routine maintenance

　　1. During operation, special attention should be paid to: whether there is friction or suction of foreign matters between the impeller and the casing inside the casing, between the impeller and the wallboard, and between the impeller and the impeller. Frequent inspection and early detection should be made. When the friction is serious, the local temperature rise of the casing will be too high, and the external painting will be scorched. At this time, the machine should be stopped immediately.

　　2. In daily work, pay attention to the temperature, vibration and running sound of the bearing and check it frequently.

　　3. In long-term operation, due to the corrosion of the impeller and casing, the working clearance increases, the leakage in the blower increases, the casing temperature rises, the exhaust temperature increases, and the fan flow decreases. At this time, stop the machine to measure the clearance and take corrective measures.

　　4. In cold areas in winter, after the blower that needs cooling water is shut down, the cooling water must be drained to prevent the water from freezing and damaging the machine.

　　2、 Regular inspection

　　1. Daily inspection

　　(1) Check the oil level. Too much or too little lubricating oil will damage the bearing.

　　(2) Check the temperature of main and auxiliary oil and bearing parts.

　　(3) Check the suction and discharge pressure to confirm whether the fan operates normally.

　　(4) Check the motor load. If the motor load increases, it indicates that there is an abnormal condition, and the cause should be found out.

　　(5) Check the packing sealing effect.

　　2. Three month inspection. Replace the lubricating oil of main and auxiliary oil tanks and clean the air filter.

　　3. Semi annual inspection. Check the fan pipe support. The packing seal fan should check the seal leakage.

　　4. One year inspection

　　(1) Check the rotary shaft lip seal.

　　(2) Check the inside of impeller and casing, and check the clearance of each part.

　　(3) Check the gear

　　(4) Check the motor load. If the motor load increases, it indicates that there is an abnormal condition, and the cause should be found out.

　　(5) Check the packing sealing effect. 2. Three month inspection. Replace the lubricating oil of main and auxiliary oil tanks and clean the air filter.

　　Refueling method of centrifugal fan

　　In different environments, the type of lubricating oil used by centrifugal fans is different. At the same time, different types of lubricants require different amounts of oil to be filled under different circumstances. Therefore, users must fill lubricating oil under actual working conditions. When filling lubricating oil, pay attention not only to add lubricating oil to the shaft and bearing seat, but also to add lubricating oil to the motor to prevent the motor from being worn due to dryness.

　　Lubricants for extreme environments:

　　For high temperature environment, the temperature can reach 175 degrees;

　　For low temperature environment, the temperature can reach -50 degrees;

　　If the fan operates in extreme environment, you must contact the relevant manufacturer's Service Center for guidance and relevant information to select the correct lubricant type.

　　We should correctly select the grease for lubricating the motor bearings according to the maintenance and operation instructions provided by the motor and bearing suppliers (included in the fan system documents). If you have any questions about this, please contact Shuangcheng fan Service Center for guidance and relevant information to select the correct lubricant type.

　　If you are using a product other than Shuangcheng fan, please check and ensure that its characteristics are compatible with the characteristics of the lubricating grease previously used, otherwise mixing grease with different characteristics will reduce the lubrication performance after mixing. If you have doubts about this, you can clean the lubricating grease in the bearing seat first, and then apply new grease. Refill the oil hole of bearing and bearing seat with 30% - 50%.

　　If you overfill (inject too much grease into the bearing seat), the bearing will heat up during operation, which may lead to bearing damage.

　　After starting the fan again, the bearing temperature will rise a little, but the temperature will stabilize within 1-2 hours. If not, please stop running immediately and check the amount of grease. If necessary, please contact the supplier.

　　Refueling method of submerged fan

　　Improper maintenance of submerged fan will reduce its service life, so how can we maintain it before use to achieve high use?

　　(1) Check vulnerable parts. First, dismantle the submerged fan and check whether the impeller, retaining ring, shaft sleeve, bearing seat and other vulnerable parts are intact. The good ones can continue to be used when assembling the machine body, and the bad ones must be replaced.

　　(2) Change the lubricating oil. After lifting the submerged fan out of the water body, open the oil hole screws in the seal chamber and the motor respectively, drain all the lubricating oil in the seal chamber and the motor, and replace with new oil.

　　(3) Ensure sealing. When replacing the lubricating oil in the sealing chamber, if the oil is muddy, replace the integral sealing box or dynamic and static sealing rings.

　　(4) Drive away damp. For the motor winding with insulation resistance lower than 0.5mn, it is necessary to drive away moisture and dehumidification. The drying method is the same as that of general motors. If the sealing box does not need to be replaced, only the stator part of the machine body can be removed. In general, the sealing box should not be disassembled as far as possible. If disassembly and assembly is really necessary, the 0-shaped rubber ring must be replaced with a new one.

　　(5) Check the bearings. Check the upper and lower bearings of the motor. If serious wear or excessive clearance is found, it must be replaced in time.

　　(6) Remove the casing for test run. Before use, disassemble the upper casing, turn the impeller, and then close the operation document to check whether the brake is started, so as to prevent the parts from rusting and burning the motor winding.

　　(7) Ensure that the bearings are lubricated. For submerged fans, check and replace the skeleton oil seal of the bearing chamber of the upper and lower covers if necessary to ensure the normal operation of the bearing under good lubrication for a long time.

　　The service life of submerged fan not only depends on its own quality, but also pays more attention to the usual maintenance.

　　The above is the refueling method of "various" fans that Xiaobian understands! I hope it can help you in the maintenance of various fans!