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1、LN CENTRIFFUGAL FAN LN离 心 风 机OPERATION MANUNL(使 用 说 明 书)XIAN CASTLE VENTLATION EQUIPMENT LTD.西安凯瑟通风设备有限公司A chief introduction to the Company1 PrefaceXian Cather ventilation equipment Ltd. is a wholly foreign-owned enterprise, located to Xian High-tech Development Zone. Cather possess the complete pr
2、oduction of advanced technology, the equipment, the accurate and reliable means of testing, the credible technical elite。With the relevant Colleges and Scientific research institution, Profits from the high-tech, which enhanced the capability of developing new products and its market adaptability. A
3、 LN series of multi-wings fan is a new production which is co-designed by the liquid mechanics research institute of xian jiaotong university and our company. To its design,fixed components and impellers incorporation optimum technology were applied. Our company is the unique domestic one that use a
4、erofoil-shape wings,and by this technology the interior flowing condition is greatly developed. Its pneumatic performance and noise condition are far better than the similar products in the market. This series of fans also have the advantages of tight configuration,low vibration,small weight, so its
5、 a ideal replacement of universal air exchange fans and air-conditions-appropriative fans.2 ApplicationLN series high-performance and low noise multi-wings centrifugal fans include 5 types: silencing with single air-intake, universal with single air-intake, lengthened with double air-intakes, univer
6、sal with double air-intakes, and outer rotor electromotor. Small volume,large scale of air flowing variety and high air pressure.Application environments: for air exchange of hotels, halls, cinemas and workshops of factories,both air intake and output. It also can be used as parts of air-conditions.
7、 Its a replacement of 4-72.Air types which can be transported: normal LN series fans can transport air and other non-self-igniting、harmless、non- cauterization-to-steels gases. None of the gases are allowed to contain glutinous materials,dust or horniness granule that is heavier than 150mg/m3, and th
8、e gas temperature should be less than 80 degree centigrade.Specially designed LN series fans can function beyond the limitations above,while this should be declared when ordering.3 Type specificationsLN series multi-wings centrifugal fans include types of single air-intake LNS-universal, single air-
9、intake XLNS- silencing, double air-intakes LND- universal and double air-intakes LNDI- lengthened. Both LNS and XLNS contains 11 machine numbers: No.2.2、No.2. 5、No.2.8、No.3.2、No.3.6、No.4、No.4.5 、No. 5、No.6、No.7.1、No.8，movement is directly transmitted by electromotor. All double air-intakes D type on
10、es use strap movement transmission; some of No.3.2、No.3.6、No.4 、No.4.5 、No. 5, movement is directly transmitted by outer rotor electromotor. The through drive to A indicated that, the leather belt transmissionto E indicated. After various models contour and installs the size to see attaches various
11、tables.B(X) LN S(D、DI) 4.5 A - 3Electromotor powerTransmission mode: A is direct movement transmission by electromotor; E is double-support strap movement transmission;Y is outer rotor electromotor direct movement transmission. Machine number : (length of wings outer diameter in decimeter).Air intak
12、e mode:S is single intake; D is duble intake ; DI is lengthened Double intake.Name: high-performance and low-noise multi-wings centrifugal fans.B: blast and fire defensive type ; X: silencing type4 ConfigurationA LN series fan is made up of impeller, box,air intake port and so on. S type machine tog
13、ether with electromotor,while D type machine together with outer rotor electromotor or double-support strap movement transmission.a) S type machine is consist of 32 aerofoil wings,one front and one back flat plates.wings are extrusions of aluminium alloy,and the surface is of good quality,high endur
14、ance,good air dynamical performance,high efficiency. By dynamic and static balance adjusted, it functions stablely. Two back to back S type machines impellers make a D type machine.b) The figure of the box is a logarithmic volute curve. For welded with armor plates, the box is as whole and can be in
15、stalled easily.c) Air intake ports is constructed as a contractive streamline integration and fixed on the side of the box by bolts.d) Transmission equipment, the fan of strap movement transmission,contains: principal axis, pedestal of ball bearing, ball bearing,strap wheel and trigonal strap etc.e)
16、 Electromotor: interior-set Y transmission by using YDW outer rotor low-noise electromotor; exterior-set A and E transmission by using Y series electromotor.5 The installation application and maintenance of the fan(1) Before installationCheck all the component of the fan to see the integrity ,whether the rotation of the impeller accords to the shown ,whether the components connect tight;whether the impeller and principal axis get damnification,whether the driver works f
