The utility model provides a centrifugal fan with double bellows, bellows, the front left side of a centrifugal fan is arranged, the bellows is provided with an air outlet, the air inlet chamfer 45 degree chamfer surface in the diagonal angle two centrifugal fan on the air in the bellows chamfer surface, clapboard inside the fan is provided with a flow guiding direction, the rotating shaft is installed in the two angles of the centrifugal fan in the diaphragm; the diaphragm is a triangular cross-section of the baffle; the centrifugal blower outlet is arranged on the inner side of the flange, the windward side of the partition board are respectively provided with a rubber sealing plate; the partition of the axis of rotation is two upper and lower bearing, a shaft connected to the structure, the bearing installation of external surface in the bellows box of upper and lower two, the bearing sleeve sealing cover, sealing ring is arranged between the box cover and the box. The position of the air outlet is changed by the new type, so that both sides of the fan have the same direction of air outlet, which can effectively solve the problem of noise, vibration and the reversing of the stopped fan.
【技术实现步骤摘要】
离心式双风机风箱
本技术涉及一种双风机风箱结构。
技术介绍
离心式双风机为锅炉引风机冷却风供给风机,每台引风机配置两组冷却风机,每组两台离心式风机,一用一备。两台离心风机共用一个风箱,风箱内采用隔板实施切换,现有的设备风箱结构为正方体形态,两台离心风机成垂直角度安装在箱上,运行中一台离心风与风箱出口成90°角度,在风箱内产生涡流,导致风机振动增大,停运风机倒转等不利因素。
技术实现思路
本技术的专利技术目的是为了提供一种避免风箱中产生涡流,减小风机振动的风箱结构,具体技术方案为:一种离心式双风机风箱,所述风箱的正面、左侧面设有离心式风机,所述风箱设有出风口,所述风箱在两个离心式风机的夹角的对角上设有倒角面,所述风箱的出风口设在倒角面上,风机内部设有导流风向的隔板,所述隔板的转动轴安装在两离心式风机的夹角内。所述倒角面的角度优选45度。所述隔板为三角形切面的挡板,所述隔板的迎风面对风向的导流使送风呈135度折角吹向出风口。隔板向左偏移时挡住左侧面离心式风机的风口,向正面旋转偏移时挡住正面离心式风机的风口。所述风箱内侧环离心式风机风口上设有凸缘,所述隔板的迎风面上设有与凸 ...
【技术保护点】
一种离心式双风机风箱,所述风箱的正面、左侧面设有离心式风机,所述风箱设有出风口,其特征是:所述风箱在两个离心式风机的夹角的对角上设有倒角面,所述风箱的出风口设在倒角面上,风机内部设有导流风向的隔板,所述隔板的转动轴安装在两离心式风机的夹角内。
【技术特征摘要】
1.一种离心式双风机风箱,所述风箱的正面、左侧面设有离心式风机,所述风箱设有出风口,其特征是:所述风箱在两个离心式风机的夹角的对角上设有倒角面,所述风箱的出风口设在倒角面上,风机内部设有导流风向的隔板,所述隔板的转动轴安装在两离心式风机的夹角内。2.如权利要求1所述的离心式双风机风箱,其特征是:所述倒角面的角度为45度。3.如权利要求2所述的离心式双风机风箱,其特征是:所述隔板为三角形切面的挡板,所述隔板的迎风面对...
【专利技术属性】
技术研发人员:刘晓文,张建,刘春,朱心丹,闫保青,
申请(专利权)人:河北大唐国际迁安热电有限责任公司,
类型:新型
国别省市:河北,13
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