CN2223788Y - 风机气流轴封装置 - Google Patents

风机气流轴封装置 Download PDF

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Publication number
CN2223788Y
CN2223788Y CN 92211845 CN92211845U CN2223788Y CN 2223788 Y CN2223788 Y CN 2223788Y CN 92211845 CN92211845 CN 92211845 CN 92211845 U CN92211845 U CN 92211845U CN 2223788 Y CN2223788 Y CN 2223788Y
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fan
air flow
sealing device
sealing element
packing groove
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Expired - Lifetime
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CN 92211845
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尹兴伊
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Abstract

一种风机的气流轴封装置,由板形密封件和吸气管构成。密封件有A、B两种形式。A型不带填料槽,用于一般场合; B型带填料槽,可用于特殊场合。由于密封件尺寸小厚度薄,可以不改变风机原结构尺寸直接固定在机壳上,并视风机规格选择适当内径的吸气管连接至风机进口,运行时依靠风机自身建立的负压便可以保证轴孔的密封,从根本上解决了输送物向环境泄漏问题。本装置主要适用于各种可与空气相混合的物料输送风机。

Description

风机气流轴封装置
本实用新型提供一种风机气流轴封装置,由气流密封件和吸气管路构成。属于输送机械中的轴密封技术。
现有风机的轴孔大部分无密封装置,特殊需要场合采用填料密封。如果填料压得较松,则密封不起作用;压得较紧则又会增加风机运行阻力,并且磨损机轴。由于风机轴处于高速运转,短时间内就会因机轴与填料间的相互磨损而产生间隙,从而造成输送物的泄漏。可见填料密封也不能避免风机轴孔泄漏。
为了解决现有风机轴孔泄漏这一难题,本实用新型提供一种风机轴孔气流密封状置,从根本上解决了轴孔泄漏和轴磨损。
本装置采取如下技术措施实现风机轴孔无泄漏的目的。
在机壳出轴端配置固定在机壳上。带有环形气流密封室的密封件,密封室通过吸气管和风机进气口相通。
工作时密封室处于负压状态,由轴孔泄漏到密封室的含尘气体经吸气管又返回风机进口,从而避免了向环境泄漏,由于密封件和轴之间保持一定间隙,因此也不会磨损风机轴。
附图1和附图2分别为A型和B型气流密封件,附图3为风机气流轴封装置安装示意图。
密封件为板形,厚度在10—18mm之间;其上有园环形气流密封室(2),轴孔(3)和吸气管孔(1)。A型无填料槽,用于一般场合。B型有填料槽(4)和压盖,可用于工作条件更为恶劣的场合。安装时,气流密封件(3)固定在风机(1)的背板(4)上,吸气孔至风机进口(7)之间用吸气管连接,中间有法兰(6)便于拆卸。风机轴(2)经密封件轴孔穿出,间隙根据风机规格确定。使用B型密封件时,应根据风机工作温度和被输送工质的性质来选装填料,然后压紧压盖,风机运转后磨损填料,轴和填料间形成微小间隙,因为此间隙同密封室相通,亦处于负压状态,所以含尘气流不会向环境泄漏。
实施例1
离心式输尘风机,风量3000立方米/小时,输送含水份30%的硅藻土矿粉,粉尘密度干基200克/立方米;气流温度250-280℃,含过热水蒸汽。采用B型密封件,填料为石棉绳。连续工作,完全无泄漏。
实施例2
离心式排尘风机,风量5000立方米/小时,输送含0-5微米微细粉尘的空气,粉尘密度20克/立方米;采用A型密封件。连续工作,完全无泄漏。

Claims (2)

1、一种风机气流轴封装置,由气流密封件和吸气管构成,其特征在于在风机出轴端,配置固定于机壳上,装有吸气管、进出轴孔和园环形气流密封室的密封件。
2、权利要求1所述的风机气流轴封装置,其特征还在于密封件为板形并分A,B两种形式,A型无填料槽,B型有填料槽和压盖。
CN 92211845 1992-05-14 1992-05-14 风机气流轴封装置 Expired - Lifetime CN2223788Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 92211845 CN2223788Y (zh) 1992-05-14 1992-05-14 风机气流轴封装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 92211845 CN2223788Y (zh) 1992-05-14 1992-05-14 风机气流轴封装置

Publications (1)

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CN2223788Y true CN2223788Y (zh) 1996-04-03

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CN 92211845 Expired - Lifetime CN2223788Y (zh) 1992-05-14 1992-05-14 风机气流轴封装置

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CN (1) CN2223788Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016145564A1 (en) * 2015-03-13 2016-09-22 General Electric Company Sealing system for a gearbox of a wind turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016145564A1 (en) * 2015-03-13 2016-09-22 General Electric Company Sealing system for a gearbox of a wind turbine

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