使用前請仔細閱讀本說明書
Please read before usinig this manual
風機使用說明書
運行、維護手冊
FAN INSTRUCTIONS
Operation and maintenance manual
一、 風機的安裝與使用
Installation and Operations
（一） 安裝
1、 安裝前首先檢查風機各部件是否齊全，對蝸殼、葉輪、主軸等主要部件應檢查是否出現(xiàn)由于運輸而出現(xiàn)變形和損壞，否則，應予修復后方可安裝。
2、 風機運行前應檢查各部件螺栓是否擰緊，如出現(xiàn)松動，必須擰緊各部位的螺栓；校正進風口與葉輪之間的間隙，主軸保持水平和中心位置。
3、 檢查即機殼內(nèi)是否有掉入或遺留的工具和雜物，否則應予以清除。
4、 安裝風機時，應充分利用千分表和塞尺，測量風機主軸和電機軸同心度及聯(lián)軸器兩端面的平行度，否則予以校正。兩軸同心度允許誤差為0.05mm，聯(lián)軸器兩端部平行度允差為0.1mm。
5、 風機安裝完畢后，用手或杠桿撥動葉輪，檢查是否有過緊或碰撞現(xiàn)象。在無過緊或碰撞現(xiàn)象的 情況下方可進行試運轉(zhuǎn)。
6、 電機安裝后，應安裝帶輪護罩或聯(lián)軸器護罩，如進氣口處不接進氣管道時，也需加添防護網(wǎng)（一般用戶自備）。
7、 安裝進風口管道時，可以直接利用風機進風口的螺栓孔進行連接。但通風管道的重量不應加在機殼上。
8、 風機的其他部件，必須嚴格按圖紙要求進行安裝。
9、 主軸轉(zhuǎn)數(shù)（n）變化后，其風機的流量Q、全壓H、軸功率N變化如下：
Q1/Q2=n1/n2； H1/H2=（n1/n2）2； N1/N2=（n1/n2）3
10、 風機所消耗的功率，是指在額定工況條件下，雖然有一定的富余量，但是，由于工況條件的故意改變而導致電機功率增大，例：進、風口全開時，風機空運轉(zhuǎn)會使風機消耗功率增大而燒壞電機。在風機試運行時，應注意電機的電流是否會出現(xiàn)超流現(xiàn)象，否則，應查明原因方可運行。
（Ⅰ）Installation
1、Before mounting,first of all,check over all parts of fan,especially main parts such as worm gear, impeller and shaft for transportation deformation and damages,If something is wrong,please repair it before mounting.
2、Check up bolts of all parts befor the fans are operatcd,Please connect all bolts if they become flexible,and check the distance between intel and impellet to make the shaft keeping horizontal and center location.
3、Be sure that remains such as tools,cluster of cloth and left in the fan casing.
4、Keep the nonhomcentricity of fan’s shaft and motor’s shaft within 0.05mm and the unparallelism of two ends of the coupling within 0.1mm for fans.
5、Turn the rotator with hand or lever to feel whether it is too tight or impacted after mounting .Make the fan operate under normal condition.
6、Mount belt guard and coupling guard after the motor is mounted ,also mount the guard in the intel if the intel is not connected by a duct.
7、Couple allowably intel duct with bolts of fan’s inlet.Howere,the weight of duct must not be able to load on the fan casing.
8、All other parts of fans must be mounted as per design drawings stringently.
9、Fans’ airflow(Q),total pressure(H)and shaft asorbed power(N) will have the following changes when impeller speed of rotation(n) changes:
Q1/Q2=n1/n2； H1/H2=（n1/n2）2； N1/N2=（n1/n2）3
Therefore , it is not allowable to increase the impeller speed of rotation without the capacity of motor changing .Otherwise , it would result in motor’s overload and being damaged.
10、The motor powe is not selected for free discharge but for some special condition,Although the motor power has surplusage in specified opcration condition,it will increase because of the changing of condition intertionally.For example,fan run frelly without any resistance will make the power increase to damage the motor when both opening the inleft an outlet .While the fans are opetating,pay attention to the absorbed current of motor whether to exceed the specified volume,otherwise , the reasons have to be found out .
(二)、風機運行中的故障及產(chǎn)生原因
故障名稱 | 產(chǎn)生原因 |
軸承箱振動劇烈 | 1、機殼或進風口與葉輪摩擦 |
2、基礎(chǔ)的剛度不牢 | |
3、葉輪鉚釘松動或葉輪前后盤變形 | |
4、葉輪軸盤與軸松動，聯(lián)軸器螺栓松動 | |
5、機殼與支架、軸承箱與支架、軸承箱蓋與軸承座等聯(lián)接螺栓松動 | |
6、風機進出氣管道安裝不良 | |
7、轉(zhuǎn)子失衡 | |
軸承溫升過高 | 1、軸承箱振動劇烈 |
2、潤滑油質(zhì)量不良、變質(zhì)、含有灰塵、砂粒、污垢等雜質(zhì) | |
3、軸承箱蓋與座聯(lián)接螺栓的預緊力過大或過小 | |
4、軸與滾動軸承安裝歪斜，前后兩軸承不同心 | |
5、滾動軸承損壞或軸彎曲 | |
電機電流過大 和溫升過高 | 1、開機時通風管道內(nèi)閘門或節(jié)流閥未關(guān)閉、風管漏氣等 |
2、風機流量超過規(guī)定值 | |
3、風機輸送氣體密度過大 | |
4、電機輸入電壓過低或電源單相斷電 | |
5、受軸承箱劇烈振動的影響 | |
6、受并聯(lián)風機惡化或發(fā)生故障的影響 | |
膠帶跳動和膠帶下滑 | 兩皮帶輪位置沒有找正，彼此不在同一截面上，帶輪距離太近或膠帶太長，風機運轉(zhuǎn)時劇烈振動。 |
（Ⅱ）Following table presents some probable causes
Malfunctions | Probable causes |
Vibration of bearing-box | 1、Fan house or inlet with impeller |
2、The stiffness or strength of foundati 88 88on is not big enough. | |
3、Impeller rivets become loose or impeller front and behind plate is deformed. | |
4、Between impeller shaft installing sleeve and shaft has loose contact,coupling bolts come loose. | |
5、Connection becomes loose between wheel disc and shaft ,or fan casing and house frame . or bearing-box and support ,or bearing-cap and house frame , or bearing-box and support , or bearing-cap and shaft supports,etc. | |
6、Duct vibration effected by incorrect mounting of intel and outlet ducts. | |
7、Rotator is out of balance. | |
Overheat of bearing | 1、Vibration of bearing-box. |
2、Lubricant grease is in bad quality or deterioratedor blocked too much ,or contains dust ,sticky sand other dirty. | |
3、The tension of connection bolts bearing cap and its support is too big. | |
4、Driven shaft is mounted unnormally to motor shaft.The front and back bearings are not concentric. | |
5、Roll-bearing is damaged | |
Overcurrent and overheat of motor | 1、Inlet valve or throttle valve is notclosed at start while the fans are operated. |
2、Airflow surpasses the rated volume. | |
3、The density of the conveying gas is too high. | |
4、Input voltage of motor is too low or one phase of electricity is broken down . | |
5、Effected by the vibration of bearing-box. | |
6、Connected fans run in bad state even with failure. | |
Run-away of belt and slipping of belt | Position of pulleys are not setting ,each other is not in the same plane.Span of pulleys. Too shaort or too long .Vibration with fan rotation. |
（三）、維護保養(yǎng)
（Ⅲ）Maintenance
1、風機維護工作制度
①風機運行時，必須定期檢查，是否出現(xiàn)電流過載和發(fā)出異常聲音，否則，應予修復后方可運轉(zhuǎn)。
②風機長期運行，一年內(nèi)應予維護保養(yǎng)，電機軸承和傳動件的軸承箱應添加潤油脂，否則會損壞傳動件或電機。
③如風機輸送的氣體帶有塵埃，必須定期清除風機及輸氣管道內(nèi)的灰塵、污垢等雜質(zhì)，防止銹蝕和堵塞風道。
④風機修復時，應切斷電源，以保證安全。
2、風機運轉(zhuǎn)時如出現(xiàn)下列不正常情況之一的，必須停機修復:
發(fā)現(xiàn)電流過大；風機運行時出現(xiàn)異常的聲音；膠帶過于松動；發(fā)生劇烈振動；電機溫升過高。
1、Fan maintenance system
①When the fan is operated ,it has to be examined regulary whether the absorbed current of motor is overloaded and there is unusual sound.Otherewise ,the fans may be runned until rpairing it.
②If the fan is operated continuously ,it have to be maintenance in one year ,the motor shaft and the casing of the bearing of drive parts have to be get more gread against damaging driven parts or motor.
③If there is any foringen substsmces in the conveying gas ,clean up dust and dirty in the fan and ducts regulary to prevent any rust or blocking ducts.
④Being repaired ,the fans have to be cut of the electricity supply for safely.
2.There are the following abnormal conditions while the fan is running,it has to be stopped and repaired:
Overcurrent of motor ;uusual sound of the running fas;the lossen belt;vibration of bearing-box;the overheat of motor.
