CN201706635U - 一种负压层流罩 - Google Patents

一种负压层流罩 Download PDF

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Publication number
CN201706635U
CN201706635U CN2010202251919U CN201020225191U CN201706635U CN 201706635 U CN201706635 U CN 201706635U CN 2010202251919 U CN2010202251919 U CN 2010202251919U CN 201020225191 U CN201020225191 U CN 201020225191U CN 201706635 U CN201706635 U CN 201706635U
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laminar flow
flow hood
negative
static pressure
framework
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张�荣
殷农
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Shanghai Dongfulong Dehui Air Conditioning Equipment Co., Ltd.
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DEHUI AIR CONDITIONING EQUIPMENT FACTORY SHANGHAI
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Abstract

本实用新型涉及一种负压层流罩，包括：风机、静压箱体、静压箱体的底部有框架，框架上放置高效过滤器，其特征在于：所述风机的出风口处装有均流板。所述静压箱体和框架由螺栓固定连接。其特征在于：所述均流板和静压箱体由螺栓固定连接。其特征在于：所述层流罩和框架之间设有环形的密封条。本实用新型的优点是：结构简单，利用负压的原理来提高密封效果，可靠地密封层流罩与框架的缝隙，保证了洁净室的洁净。

Description

一种负压层流罩 
技术领域
本实用新型涉及一种空气洁净设备，特别是一种负压层流罩。 
背景技术
层流罩是一种可提供局部洁净环境的空气净化单元，可灵活地安装在需要高洁净度的工艺点上方，洁净层流罩可以单个使用，也可多个组合成带状洁净区域。层流罩是将空气以一定地风速通过高效过滤器后，形成均流层，使洁净空气呈垂直单向流，从而保证了工作区内达到工艺要求的洁净度。随着科技的发展，大型组装车间和电子厂房越来越多，特别是生物医药等领域的生产中，对于洁净环境的要求非常高。目前，层流罩是将空气以一定地风速通过高效过滤器后，形成均流层，使洁净空气呈垂直单向流，从而保证了工作区内达到工艺要求的洁净度。用于净化室的层流罩和框架仅由螺栓固定连接，这容易产生层流罩和框架间的缝隙，使洁净区回风不经过层流罩内的高效过滤器，而从层流罩和层流罩固定框架间隙处向下方洁净区传递，其密封效果不可靠，影响工作环境的洁净。 
所以，如何提高层流罩的密封性，确保洁净区的洁净，成为本领域技术人员研究的重要课题。 
发明内容
本实用新型的目的是提供了一种结构简单、使用方便、密封效果好的负压式层流罩，解决了现有技术的不足之处。 
本实用新型的目的是这样实现的：一种负压层流罩，包括：风机、静压箱体，静压箱体的底部有框架，框架上放置高效过滤器，其特征在于：所述风机的出风口处装有 均流板。 
所述层静压箱体和框架由螺栓固定连接。 
所述均流板和静压箱体由螺栓固定连接。 
所述层流罩和框架之间设有环形的密封条。 
本实用新型的优点是：结构简单，利用负压的原理来提高密封效果，可靠地密封层流罩与框架的缝隙，保证了洁净室的洁净。 
附图说明
附图为本实用新型的结构示意图。 
下面结合附图和实施例对本实用新型作详细说明。 
具体实施方式
图中，一种负压层流罩，包括：风机1、静压箱体9、静压箱体9的底部有框架5，框架5上放置高效过滤器4，其特征在于：所述风机1的出风口处装有均流板2。 
所述静压箱体9和框架1由螺栓3固定连接。 
所述均流板2和静压箱体9由螺栓固定连接。 
所述静压箱体9和框架5之间设有环形的密封条6。 
使用时，负压层流罩安装在洁净室顶上方，通过负压层流罩的风机1将从回风口7和墙板11上的空调箱送风口8过来的空气以一定地风速通过高效过滤器4后，形成均流层，使洁净空气呈垂直单向流，负压层流罩与塑钢固定框架之间才生负压。从而防止空气从间隙处传递到洁净室以内，杜绝了洁净区10回风不经过层流罩高效过滤器而从层流罩和层流罩固定框架5间隙处向下方洁净区10传递，保证了工作区内达到工艺要求的洁净度。 
本实用新型的优点是：结构简单，利用负压的原理来提高密封效果，可靠地密封层流罩与框架的缝隙，保证了洁净室的洁净。 

Claims (4)

1.一种负压层流罩，包括：风机、静压箱体、静压箱体的底部有框架，框架上放置高效过滤器，其特征在于：所述风机的出风口处装有均流板。
2.根据权利要求1所述一种负压层流罩，其特征在于：所述静压箱体和框架由螺栓固定连接。
3.根据权利要求1所述一种负压层流罩，其特征在于：所述均流板和静压箱体由螺栓固定连接。
4.根据权利要求1所述一种负压层流罩，其特征在于：所述层流罩和框架之间设有环形的密封条。
CN2010202251919U 2010-06-12 2010-06-12 一种负压层流罩 Expired - Lifetime CN201706635U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828627A (zh) * 2012-08-27 2012-12-19 四川川净洁净技术股份有限公司 数字智能整体式称量间
CN104864540A (zh) * 2015-05-28 2015-08-26 天津龙川精工洁净技术发展有限公司 独立自循环式洁净手术室

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828627A (zh) * 2012-08-27 2012-12-19 四川川净洁净技术股份有限公司 数字智能整体式称量间
CN104864540A (zh) * 2015-05-28 2015-08-26 天津龙川精工洁净技术发展有限公司 独立自循环式洁净手术室

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Owner name: SHANGHAI DEHUI AIR-CONDITIONING EQUIPMENT CO., LTD

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Address after: 201406, Shanghai, Fengxian District South Town Wang Yang Economic Zone, Yang licensing Road, No. 628

Patentee after: Shanghai Dehui Air-conditioning Equipment Co., Ltd.

Address before: Yang Wang Guangming town Fengxian District Economic Zone 201406 Yang Shanghai city Pailu

Patentee before: Dehui Air Conditioning Equipment Factory, Shanghai

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Owner name: SHANGHAI DONGFULONG DEHUI AIR CONDITIONING EQUIPME

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Patentee before: Shanghai Dehui Air-conditioning Equipment Co., Ltd.

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Address after: 201401 Shanghai city in Fengxian District Road No. 359 Building 5

Patentee after: Shanghai Dongfulong Dehui Air Conditioning Equipment Co., Ltd.

Address before: 201406 No. 628 Yang Road, South Bridge Town, Shanghai, Fengxian District

Patentee before: Shanghai Dongfulong Dehui Air Conditioning Equipment Co., Ltd.

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