WO2021151762A1 - Établi écoénergétique, en particulier établi ultra-propre, et procédé de fonctionnement d'un établi de ce type - Google Patents

Établi écoénergétique, en particulier établi ultra-propre, et procédé de fonctionnement d'un établi de ce type Download PDF

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Publication number
WO2021151762A1
WO2021151762A1 PCT/EP2021/051243 EP2021051243W WO2021151762A1 WO 2021151762 A1 WO2021151762 A1 WO 2021151762A1 EP 2021051243 W EP2021051243 W EP 2021051243W WO 2021151762 A1 WO2021151762 A1 WO 2021151762A1
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WO
WIPO (PCT)
Prior art keywords
exhaust air
supply air
workbench
air
work
Prior art date
Application number
PCT/EP2021/051243
Other languages
German (de)
English (en)
Inventor
Michael Keil
Christopher KEIL
Original Assignee
Michael Keil
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Michael Keil filed Critical Michael Keil
Publication of WO2021151762A1 publication Critical patent/WO2021151762A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/20—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for shielding the work area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2215/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B2215/003—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area with the assistance of blowing nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2215/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B2215/006—Suction tables

Definitions

  • Energy-efficient workbench in particular ultra-pure workbench and method for operating such a workbench
  • the invention relates to a workbench according to the preamble of claim 1 and a method for operating a workbench according to the preamble of claim 11.
  • Workbenches are used to protect people and / or products.
  • the workbenches according to the invention in particular clean room workbenches or even clean room workbenches, are technically comparable to fume cupboards and safety workbenches.
  • Working and production under low-contamination to contamination-free conditions, especially clean room conditions, is an important prerequisite in many industries in order to be able to guarantee the quality of a product and also to protect employees from possible contamination. This is particularly important in food production, medical research and treatment, drug production, genetic engineering, microelectronics, semiconductor manufacturing, optics and laser technology or nanotechnology.
  • a workbench has a supply air device which supplies a work area with pre-assembled supply air.
  • the pre-assembled supply air is, for example, pre-tempered, filtered, composed in a defined manner and / or has a defined air humidity.
  • the workbench has an exhaust air device that extracts the exhaust air from the work area.
  • CN 10 5983456 A shows a workbench which has a supply air device and an exhaust air device, so that supply air flows into the work space and exhaust air is sucked out of it.
  • the pre-processing of the supply air in particular for setting a defined temperature and a defined air humidity, is associated with a great deal of effort and, in particular, high energy costs.
  • the energy required for pre-assembly leads to continuously high operating costs for such workbenches.
  • the object of the invention is therefore to eliminate the disadvantages of the prior art and to provide a workbench and a method for operating a workbench which have improved energy efficiency.
  • the invention relates to a workbench with a work space surrounded by a housing, the work space being accessible through a work opening, with a supply air device with which pre-assembled supply air can flow into the work space, and with an exhaust air device with which exhaust air can be extracted from the work space It is provided that the exhaust air device is designed in such a way that exhaust air can at least partially be led out of the workbench and at least partially can flow into the work space via a supply air element.
  • the housing of the workbench forms an interior space which represents the work space.
  • the workspace of the workbench represents a protected space in which a user can work, the user being protected from contamination by the substances in the workspace as well as the substances from contamination from outside can be.
  • the user stands in front of the same and reaches through the work opening into the work space in order to carry out work there.
  • the exhaust air device is provided for this, which sucks the exhaust air out of the work area.
  • the exhaust air is at least partially out of the workbench and at least out of the room in which the workbench is arranged.
  • the exhaust air is led out of the building in which the workbench is arranged.
  • cleaning steps can be provided before the exhaust air is released into the environment.
  • the supply air is pre-assembled, i.e. it is preheated to a certain temperature, for example, whereby, depending on the area of application, only temperature fluctuations of 0.5 to 1 ° C are permitted.
  • the supply air is preferably tempered to 20 to 22 ° C, particularly preferably to 21 ° C, and is therefore pre-assembled.
  • pre-assembly can also include setting a defined air humidity.
  • the prefabricated supply air preferably has a relative humidity of 50%, with fluctuations in the value of the relative humidity of plus / minus 10% preferably being permissible.
  • it is preferably provided as a pre-assembly that the supply air has a certain composition. This means that different working conditions can be guaranteed for different areas of application.
  • the supply air flowing into the work space is after flowing through the work space to exhaust air and as such is pumped out by the exhaust air device.
  • the supply air and exhaust air are preferably air, a defined gas composition, a protective gas, for example nitrogen or noble gas, or a mixture thereof.
  • the type of supply air used depends on the area of application in which the workbench is used. For example, applications in which oxygen-sensitive substances are used require a protective gas atmosphere. Working with moisture-sensitive substances is also made possible if the supply air is dried before it flows into the work area.
  • the housing preferably forms a substantially cuboidal interior space, which represents the working space. Consequently, the housing surrounds the working space.
  • the housing preferably forms a substantially cuboidal interior space, which represents the working space. Consequently, the housing surrounds the working space.
  • the housing preferably comprises six surfaces which form the outer boundary of the housing, these six surfaces forming two side surfaces, a rear surface, a front surface, an upper surface and a lower surface.
  • the spatial allocation of the areas is based on the working direction of a user of the workbench.
  • the side surfaces and the rear surface are preferably designed to be closed. As a result, a working space can be formed which can only be accessed on one side, namely in particular the front side. This increases the safety of the user and of the object to be processed and minimizes handling errors by the user.
  • the work space can be accessed through a work opening.
  • a user can access the workspace from the outside and carry out work within the workspace.
  • Work that is carried out within the workspace includes, for example, chemical experiments, the manufacture of semiconductors and the production of drugs.
  • the formulation of the one work opening does not exclude that several openings are also provided, which are summarized under the formulation of a work opening, which allow access and work in the work space.
  • the working opening is preferably designed in such a way that it can be closed.
  • a work space can be obtained which can be accessed through the work opening if necessary, but which can also be closed when the workbench is not in use.
  • the energy efficiency can be further improved because when the workbench is not in use, the amount of supply air and exhaust air can be significantly reduced, as a result of which less pre-assembled supply air and the energy required for this need to be provided. This can be done, for example, via an automatic detection of non-use, which can take place in particular by means of a light barrier, and an automatic regulation of the supply air and exhaust air volume.
  • the working opening is preferably designed to be closable by means of a closure element.
  • the front surface of the housing has a Front sash as a closure element, which consists in particular of a displaceable pane.
  • the sash can be opened by moving it. If the workbench is no longer used, the sash can be locked by moving it into a locking position. The working opening is thus closed. This enables simple use of the workbench and at the same time opens up the possibility of further energy reduction.
  • the sash is preferably designed to be vertically displaceable as part of the housing. This enables simple use of the workbench.
  • the front surface of the housing has a disk which has working openings.
  • These working openings are designed in particular as recesses which have a round or oval shape.
  • the recesses are closed with gloves as a closure element, as a result of which the work space can be accessed via these gloves without an uncontrollably open opening to the surroundings of the work space being present. This can also increase the energy efficiency because less pre-assembled supply air is required in relation to partially and / or temporarily open workbenches.
  • the front surface has a disk which has a working opening which can be closed by means of a second, displaceable disk as a closure element.
  • a seal is arranged on the working opening and / or the closure element. This seal seals the working opening in a closed state. As a result, in a closed state of the work opening, a sealed work space is obtained and the energy efficiency is further increased.
  • the work opening can be closed by means of a front slide as a closure element which has a seal in an area facing the work opening.
  • a front slide as a closure element which has a seal in an area facing the work opening.
  • the working space is sealed off from the outside when the sash is in a closed state.
  • Work in the work area can preferably be carried out using gloves when the work opening is closed and sealed.
  • the seal is a pneumatic seal.
  • the working space that is as dense as possible is obtained.
  • the entire surface of the housing that delimits the working space is free of metal. This means that the workbench can be replaced for work under clean room conditions. In a preferred development, the entire surface of the workbench is made free of metal. This means that it can be used in clean rooms. Due to the absence of metal, the corresponding surface is corrosion-free and contamination of the processed objects through metallic traces is excluded. This means that even highly sensitive samples can be examined and processed.
  • all of the surfaces of the system which includes the workbench and all elements carrying supply air and exhaust air, are made metal-free. This guarantees a high degree of freedom from contamination.
  • the metal-free surfaces are made of plastic.
  • the plastic is preferably selected from the group: polypropylene, Teflon and perfluoroalkoxy polymer.
  • the plastic can be selected depending on the area of application of the workbench and the required resistance and is also easy to process.
  • the supply air device preferably has a supply air filter. This frees the incoming air from particles and other contaminants before it reaches the working area.
  • the supply air filter If a very fine particle filter is used as the supply air filter, the supply air flowing into the working space is essentially free of particles. In this way, contamination of the object to be processed in the work area by particles in the supply air can be prevented. In addition, the supply air must be free of particles for use in clean rooms.
  • the supply air can preferably flow into the working space starting from the upper surface of the housing. In this way, a uniform flow through the working space can be obtained.
  • a gauze is arranged in the flow direction after the supply air device, the supply air being able to flow into the working space in the form of a laminar flow.
  • a gauze is a very fine-meshed fabric that enables the formation of a laminar air flow.
  • a laminar supply air flow in the work area enables work without air turbulence. This prevents, for example, cross-contamination between several objects located in the work area or tools required for processing.
  • the tools required for machining can, for example, not only be mechanical tools, but also chemical ones Be solutions that are required in particular for the analysis of substance samples or blood samples or the like.
  • the exhaust air is preferably sucked from the exhaust air device through a worktop with a grid structure, which corresponds to the lower surface of the housing. This ensures a uniform flow of air within the work area.
  • the exhaust air is partly led out of the workbench and partly led back into the work area via a supply air element.
  • the exhaust air routed from the supply air element into the work area becomes reused supply air.
  • the proportion of re-used supply air can be saved in the pre-assembled supply air.
  • the supply air element is preferably arranged between the exhaust air device and the supply air device, so that the reused exhaust air is mixed with pre-assembled supply air in the supply air device before the supply air flows into the working space.
  • the supply air element is preferably arranged in such a way that the reused supply air is also passed through a supply air filter. This is preferably the supply air filter of the supply air device. In this way, the supply air flowing into the working space, which corresponds to the reused exhaust air together with the pre-assembled supply air, can be guaranteed to be free from particles.
  • a filter is arranged between the exhaust air device and the supply air element. This filter holds back possible impurities from the exhaust air, which the supply air has absorbed while flowing through the work area. It is preferably provided that the filter is adapted to the area of application of the workbench.
  • a filter that filters microorganisms out of the air.
  • an activated carbon filter is used as the filter.
  • Activated carbon can absorb chemical substances, especially vapors and volatile substances, from the exhaust air and thus free the exhaust air from it before it becomes reused supply air. If the exhaust air is partly led out of the workbench and partly led back into the work area via a supply air element, such a processing step by means of a filter ensures that no cross-contamination occurs between the different objects in the work area and the user is also protected from the return of harmful substances . This is particularly advantageous for chemical work and in the semiconductor sector.
  • the exhaust air device preferably comprises an exhaust air pipe in which a fan is provided.
  • the fan sucks the exhaust air out of the work area.
  • a branch section is provided in the exhaust pipe, which divides the exhaust pipe into at least two partial pipes.
  • the exhaust air can be divided into a first partial exhaust air flow, which is led out of the workbench, and a second partial exhaust air flow, which is routed back into the work space via the supply air element.
  • This branching section is preferably designed as a T-tube.
  • regulating flaps are arranged in the sub-pipes, which are controllable. This makes it possible to specifically control which amount of exhaust air is led out of the workbench and which amount of exhaust air is returned to the work space via the supply air element.
  • the supply air element is preferably designed as a pipe section which is fluidically connected to the second part of the pipe of the exhaust air pipe which guides the second exhaust air partial flow and is fluidically connected to the working space. This enables the return of the exhaust air, which is to be returned to the work space, from the exhaust air pipe and the adjoining partial pipe into the work space. The moment the exhaust air is at least partially fed back into the work area, it becomes reused supply air.
  • the regulating flaps can preferably be regulated automatically using servomotors.
  • a setting of the servomotors and, via this, regulation of the division of the amount of exhaust air into the abovementioned partial exhaust air flows is preferably done directly by a user.
  • the user can regulate the amount of recirculated exhaust air and exhaust air led out of the workbench, depending on the work to be carried out in the workspace.
  • the regulating flaps are preferably regulated automatically as a function of the exhaust air quality.
  • the exhaust air quality is measured by means of a sensor determined. If the exhaust air quality decreases excessively, the regulating flaps in the two partial pipes must be set in such a way that more exhaust air is led out of the workbench. On the other hand, more exhaust air can be returned to the work area if the exhaust air quality indicates that there is little or no contamination in the exhaust air.
  • the exhaust air device is regulated in such a way that at least 50% of the exhaust air extracted can flow into the working space via the supply air element.
  • at least 50% of the exhaust air is returned to the work area as reused supply air. This enables the pre-assembled supply air volume to be reduced by at least 50%, which also reduces the energy required for pre-assembly by around 50% and significantly improves energy efficiency.
  • the exhaust air device is preferably regulated in such a way that at least 70% of the exhaust air extracted can flow into the working space via a supply air element. This enables a further reduction in the amount of pre-assembled supply air and the energy required for this to be achieved.
  • the remaining amount of exhaust air that is led out of the workbench ensures sufficient filter regeneration so that no high chemical concentrations occur in the filter and the returned exhaust air. This is guaranteed in particular if essentially 30% of the exhaust air is led out of the workbench.
  • the amount of incoming air and the amount of exhaust air that flows into the work space from the air inlet device and is sucked out of the work space by the air outlet device can each be controlled separately from one another.
  • the supply air and / or exhaust air volume is regulated via control flaps in the corresponding supply air and / or exhaust air devices.
  • the amount of supply air preferably corresponds to the amount of exhaust air, with the re-used supply air, which is fed back into the work space via the supply air element, must also be added to the amount of supply air.
  • a pressure sensor is preferably provided in the work space, which measures the pressure in the work space and the control flaps in the supply air device and the exhaust air device regulates to each other in such a way that atmospheric pressure prevails in the working space. This ensures that there is no overpressure or underpressure in the work space, which would lead to an escape of exhaust air into the environment of the workbench or an intake of ambient air from the environment of the workbench. This could contaminate the user or the object to be processed.
  • the air circulation in a closed state of the working opening is reduced by at least 30% compared to the air circulation in regular operation, particularly preferably by at least 50%.
  • the work opening is in a closed state when no work is taking place in the work area and the work opening has been closed. Consequently, in this state there is also no need for a full amount of supply air and exhaust air, which correspond to the air circulation during operation.
  • the air circulation corresponds to the amount of supply air and exhaust air that pass through the workbench in a defined time interval. This can further improve the energy efficiency.
  • the senor and / or the light barrier and / or the light curtain do not register anything and / or are not interrupted over a certain time interval, that the work opening is automatically closed and the air circulation by 30 to 70%, in particular is reduced by 50% compared to the regular air circulation during operation. This can be done, for example, by lowering the sash into a closed position.
  • the time interval preferably corresponds to 20 minutes.
  • the air circulation is further reduced if, for example, no work takes place in a time interval greater than 24 hours or if it is the weekend.
  • the air circulation is preferably reduced to a maintenance mode, which corresponds to less than 30% of the air circulation during operation.
  • the workbench can be expanded as a modular system. This enables certain requirements that exist depending on the respective work area to be met. Thanks to the modular system, a second Work space can be provided, which is connected to the work space via a hatch. Alternatively, special immersion basins can be arranged within the work space, which enable certain work steps, for example immersion rinsing. Control elements outside the work area for media portioning in the work area can also be expanded.
  • the side surfaces and / or the front surface are designed to be transparent. This means that work in the work area can be carried out easily and conveniently.
  • the workbench preferably has a digital interface. This enables digital networking, for example, of several workbenches arranged in a room, in particular in a clean room, with one another and / or with the laboratory, the building or with the ventilation system. If only part of the workbenches is used, the air circulation in the other workbenches can be automatically reduced. This ensures compliance with the simultaneity factor and this can be reduced to the bare minimum. This further improves the energy efficiency. On the other hand, if there is a security-relevant occurrence or an energy-saving state, for example at night or on the weekend, a simultaneous and / or mutual locking and / or locking of the workbenches, the laboratory and / or the building can be triggered. This leads to a further drastic increase in energy efficiency.
  • the object is achieved by a method for operating a workbench, with a working space surrounded by a housing, a supply air device with which pre-assembled supply air flows into the working space, and with an exhaust air device with which exhaust air is sucked out of the working space, with is that the exhaust air is partly led out of the workbench during regular operation and partly led back into the work room via a supply air element as reused supply air.
  • the regular operation corresponds to an operation in which work is carried out inside the workbench without a very high chemical or other pollution load occurring.
  • the amount of supply air that is fed into the working space via the supply air device and the supply air element preferably corresponds essentially to the amount of exhaust air that is fed out of the working space. This leads to an equalization of the amount of air flowing into and sucked out of the work space, which essentially results in the work space Atmospheric pressure prevails. This ensures that no contamination from outside the work area can get into this and opposite.
  • 70% of the exhaust air is fed back into the work space via the supply air element as reused supply air. In this way, an improved energy efficiency of the workbench can be achieved.
  • the exhaust air which is returned to the working space as reused supply air via the supply air element, is filtered, in particular filtered through an activated carbon filter, before being returned to the working space. This removes chemicals or other contaminants from the exhaust air before it is returned to the work area.
  • the exhaust air is preferably led completely out of the workbench.
  • a safety-relevant occurrence is, for example, the uncontrolled evaporation of substances that are potentially hazardous to health or an otherwise leakage of above-average amounts of substances. If the exhaust air is completely led out of the workbench, this corresponds to 100% of the exhaust air. This means that 0% of the exhaust air is returned to the work area.
  • This setting can optionally be set manually by a user or automatically by means of a sensor. A corresponding regulation leads to an adjustment of the regulating flaps of the exhaust air device, the flap of the partial pipe, which can lead the exhaust air back into the work space, being completely closed.
  • FIG. 1 side sectional view of a workbench
  • FIG. 3 front view of a workbench. 1 shows a side view of a workbench 1 with a housing 2 which forms a work space 3 and surrounds it.
  • the work space 3 can be accessed through a work opening 4.
  • This working opening 4 is designed to be closable by means of a closure element 5.
  • this closure element 5 is formed by a front slide 6.
  • the housing 2 comprises two lateral surfaces 7, only one of which is visible in the sectional view of FIG. 1, a rear surface 8, a front surface 9, an upper surface 10 and a lower surface 11.
  • a supply air device 12 pre-packaged air is flowed into the working space 3 during operation. It can be provided that the supply air passes through a supply air filter 13, which filters out particles, before it enters the working space 3.
  • an exhaust air device 14 the supply air is extracted as exhaust air after flowing through the working space 3. The exhaust air is partly led out of the workbench 1 and partly returned to the work space 3 via a supply air element 15.
  • the exhaust air device 14 has an exhaust air pipe 16 which comprises a branching section 17 at which the exhaust air pipe 16 is separated into two partial pipes 18.
  • At least one control flap 19 is arranged in each of the partial pipes 18, with which the ratio between the exhaust air led out of the workbench 1 and the exhaust air recirculated into the work space can be regulated.
  • a filter 20 is preferably arranged in that partial pipe 18 which partially guides the exhaust air back into the working space 3. This filter 20 can have activated carbon, for example.
  • a monitor and operating unit 21 can optionally be arranged on the housing 2 of the workbench 1, as shown in FIG Components shown is used.
  • the components not shown also include fans, which flow the supply air into the working space 3 and extract it from it as exhaust air.
  • a substructure 22 which is designed, for example, as a storage and / or safety cabinet 22, is arranged under the work space.
  • This substructure 22, like other elements, can be modularly adapted according to customer requirements.
  • FIG. 2 also shows a side sectional view of the same workbench as FIG. 1 with flow arrows.
  • the supply air device 12 flows prefabricated supply air via a supply air filter 13 into the working space 3. This takes place in FIG. 2 starting from the upper surface 10.
  • the exhaust air device 14 sucks the exhaust air through the lower surface, which has a permeable lattice structure, from the Work space 3.
  • the exhaust air is divided into a first exhaust air stream, which is led out of the workbench, and a second exhaust air stream, which is returned to the work space 3 as reused supply air.
  • 3 shows a front view of a workbench 1, which is of modular construction and, in addition to the work space 3, has a second separate work area 23, for example for smoking chemicals.
  • the work space 3 and the second work area 23 can be connected via a lockable hatch.
  • the hatch is designed to be lockable by means of a slide or a door.
  • the exhaust air of the second work area 23 is set when the chemicals are being smoked in such a way that the exhaust air is completely led out of the second work area 23 and is not reused.
  • a cabinet is provided as a substructure 22 under the workbench 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ventilation (AREA)

Abstract

L'invention concerne un établi comprenant un espace de travail entouré par un boîtier, l'accès à l'espace de travail pouvant se faire par une ouverture de travail, comprenant une unité de soufflage d'air, grâce à laquelle de l'air soufflé préalablement créé peut être introduit dans l'espace de travail, et comprenant une unité de ventilation, grâce à laquelle l'air rejeté peut être extrait de l'espace de travail. Selon l'invention, l'unité de ventilation est conçue de sorte que l'air rejeté puisse être au moins partiellement éliminé de l'établi et puisse être au moins partiellement introduit dans l'espace de travail par l'intermédiaire d'un élément de soufflage d'air.
PCT/EP2021/051243 2020-01-29 2021-01-21 Établi écoénergétique, en particulier établi ultra-propre, et procédé de fonctionnement d'un établi de ce type WO2021151762A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020102138.0 2020-01-29
DE102020102138.0A DE102020102138A1 (de) 2020-01-29 2020-01-29 Energieeffiziente Werkbank, insbesondere Reinstwerkbank und Verfahren zum Betrieb einer solchen Werkbank

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WO2021151762A1 true WO2021151762A1 (fr) 2021-08-05

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EP0726428A2 (fr) * 1995-02-13 1996-08-14 Institut für Umwelttechnologie und Umweltanalytik e.V. Etable de sécurité
DE19549396A1 (de) * 1995-05-10 1997-01-09 Doerfert Hans Joachim Sicherheitswerkbank
EP0844030A2 (fr) * 1996-11-20 1998-05-27 MRD Medical Research and Development Patent GmbH & Co.KG Etabli à aspiration et son procédé d'exploitation
DE10017196A1 (de) * 2000-04-07 2001-10-11 Kendro Lab Prod Gmbh Sicherheitswerkbank
EP1609541A2 (fr) * 2004-06-24 2005-12-28 Kendro Laboratory Products GmbH Établi de sécurité
CN105983456A (zh) 2015-01-28 2016-10-05 南通大学 一种净化化学工作站
DE102018004587B3 (de) * 2018-06-08 2019-08-22 Thermo Electron Led Gmbh Sicherheitswerkbank mit geregeltem Umluftstrom sowie Verfahren zu deren Betrieb
EP3557213A1 (fr) * 2018-04-16 2019-10-23 Skan Ag Dispositif de mesure permettant de mettre en uvre des essais de sécurité sur un établi conçu sous la forme de confinement

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8707093U1 (fr) 1987-05-16 1987-11-05 Dalk, Helmut, 2408 Timmendorfer Strand, De

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Publication number Priority date Publication date Assignee Title
DE3531288A1 (de) * 1985-09-02 1986-05-22 Helmut 2408 Timmendorfer Strand Dalk Reinraumtechnische arbeitskabine
EP0726428A2 (fr) * 1995-02-13 1996-08-14 Institut für Umwelttechnologie und Umweltanalytik e.V. Etable de sécurité
DE19549396A1 (de) * 1995-05-10 1997-01-09 Doerfert Hans Joachim Sicherheitswerkbank
EP0844030A2 (fr) * 1996-11-20 1998-05-27 MRD Medical Research and Development Patent GmbH & Co.KG Etabli à aspiration et son procédé d'exploitation
DE10017196A1 (de) * 2000-04-07 2001-10-11 Kendro Lab Prod Gmbh Sicherheitswerkbank
EP1609541A2 (fr) * 2004-06-24 2005-12-28 Kendro Laboratory Products GmbH Établi de sécurité
CN105983456A (zh) 2015-01-28 2016-10-05 南通大学 一种净化化学工作站
EP3557213A1 (fr) * 2018-04-16 2019-10-23 Skan Ag Dispositif de mesure permettant de mettre en uvre des essais de sécurité sur un établi conçu sous la forme de confinement
DE102018004587B3 (de) * 2018-06-08 2019-08-22 Thermo Electron Led Gmbh Sicherheitswerkbank mit geregeltem Umluftstrom sowie Verfahren zu deren Betrieb

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