Unlock instant, AI-driven research and patent intelligence for your innovation.

Fume cupboard

A fume hood and shell technology, applied in the field of fume hoods, can solve problems such as inability to prevent

Inactive Publication Date: 2004-12-15
WALDNER LABOREINRICHTUNGEN SE & CO KG
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this improves the leakage safety against external disturbances, it does not prevent, for example, the accumulation of heavy gases at the bottom of the working space or of light gases above the openings of the working space

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fume cupboard
  • Fume cupboard
  • Fume cupboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The fume hood shown in FIG. 1 comprises an enclosure 1 with a base or deck 2 which, except for an opening which can be closed by a sliding window 9, encloses the working area 3 of the fume hood on all sides. A baffle 4 extends within the workspace 3 over the rear wall of the fume hood. A plurality of openings 5 ​​a , 5 b , 5 c and 5 d are arranged between the baffle 4 and the housing wall and the chamber behind the baffle 4 is extracted via a smoke collection channel 6 which is connected to a ventilation system 7 .

[0015] The side column of fume hood shell 1 is designed according to the shape of aerodynamically formed aluminum column 8, and is preferably a special-shaped piece with the shape of an aircraft pressure-bearing surface facing forward, wherein the sliding window 9 has a The aerodynamically correspondingly shaped inflow profile 10 . The front edge of the deck 2 also includes an aerodynamically shaped inflow profile 11 , which can also be a profiled section ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A cabinet with a housing, in which a working chamber (3) is located which is open on one side. In order to reduce the risk of a blow-out of harmful substances and in particular to avoid dead-space areas at the internal surfaces of the side walls and the bottom of the working chamber (3), devices are provided which blow in supply-air jets (21, 22) at an acute angle to the internal surfaces of working chamber (3) in such a way that these supply-air jets (21, 22) lie next to the internal surfaces.

Description

technical field [0001] The invention relates to a fume hood with a housing in which a working area open on one side is provided. Background technique [0002] Such fume hoods are well known and commercially available. They comply with certain standards regarding possible emissions of harmful substances. [0003] For this reason, it is known from DE19712975 to increase the air leakage safety of the fume hood by means of an air curtain which blows transversely to the opening of the working area, in particular from below. Although this improves the leakage safety against external disturbances, it does not prevent, for example, the accumulation of heavy gases at the bottom of the working space or of light gases above the openings of the working space. Contents of the invention [0004] It is therefore the object of the present invention to design a fume hood of the above-mentioned type in such a way that accumulation of harmful substances on the side walls and the floor of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/08B08B15/02
CPCB08B2215/003B08B15/023
Inventor U·加特纳J·利布施
Owner WALDNER LABOREINRICHTUNGEN SE & CO KG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com