EP3837480A1 - Explosionsgeschützte anordnung - Google Patents
Explosionsgeschützte anordnungInfo
- Publication number
- EP3837480A1 EP3837480A1 EP19755847.1A EP19755847A EP3837480A1 EP 3837480 A1 EP3837480 A1 EP 3837480A1 EP 19755847 A EP19755847 A EP 19755847A EP 3837480 A1 EP3837480 A1 EP 3837480A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- explosion
- proof
- housing
- gas
- partial space
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/061—Walls with conduit means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20309—Evaporators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20354—Refrigerating circuit comprising a compressor
Definitions
- the invention relates to an explosion-proof arrangement comprising an explosion-proof housing as well as a refrigerator for cooling a housing interior.
- DE 32 03 799 Al discloses an explosion-proof refrigerator.
- the potentially explosive components are installed in a gas-tight housing so that they cannot ignite the potentially explosive atmosphere outside the housing.
- the evaporator of the refrigerator is located in the interior of the refrigerator to be cooled, while the condenser is arranged outside the refrigerator.
- Explosion-proof housings are set up to include ignition sources and to prevent the ignition of an explosive atmosphere in the vicinity of the housing.
- Sources of ignition can be devices with electrical and / or electronic components, for example. When enclosing such devices in the housing, it must be ensured that the heat that is generated during operation of the device is removed from the interior of the housing. The entire arrangement must not have any temperatures at any point which could lead to the ignition of the potentially explosive atmosphere.
- the explosion-proof arrangement according to the invention has an explosion-proof housing which is designed in the type of protection flameproof enclosure (Ex-d).
- the housing has several outer walls that enclose a housing interior. In relation to an environment, the interior of the housing is enclosed by the outer walls of the housing to form the pressure-resistant encapsulation.
- the explosion-proof housing also has a partition in the interior of the housing, which divides the interior of the housing into a first compartment and a second compartment. Gas exchange is possible between the second compartment and the surroundings. At least one outer wall section adjoining the second partial space is designed to be gas-permeable and is set up to enable a gas exchange, which is resistant to ignition, with the potentially explosive atmosphere in the environment.
- the gas-permeable outer wall section can itself be made of a gas-permeable, ignition-proof material or have a gas-permeable, ignition-proof passage channel.
- the explosion-proof housing does not necessarily have to be a single housing.
- the two subspaces can also be formed by two originally separate Ge housed parts.
- a housing can be flanged with the second part to a housing part with the first part.
- the explosion-proof arrangement also has at least one electrical and / or electronic device, which is arranged in the first subspace. During operation, the at least one device emits heat into the first subspace.
- the explosion-proof arrangement has a refrigeration machine for dissipating the heat from the first compartment.
- the refrigerator has an evaporator arranged in the first part and a condenser arranged in the second part.
- the intermediate wall forms a barrier between the two subspaces which is more resistant to ignition.
- Both sub-rooms are each designed for the type of protection flameproof enclosure (Ex-d). This means that ignition within the first subspace does not lead to ignition or explosion in the second subspace and vice versa. It is also achieved that the volumes of the two subspaces are smaller than the entire interior of the housing and thus the explosion pressure that the housing has to withstand can be reduced compared to a housing with a single connected housing interior of the same size.
- Arranging the evaporator in the second sub-space ensures that the heat generated by the refrigeration machine on the evaporator cannot lead to ignition of the potentially explosive atmosphere.
- the refrigeration machine can be used to ensure that the heat generated by one or more heat sources in the first subspace is absorbed and at least partially transferred to the second subspace.
- By arranging the flow Channels of the refrigeration machine in the first subspace can not only influence the gas temperature inside the first subspace, but also hot spots on the outer walls of the housing surrounding the first subspace can be avoided. The temperature on these outer walls in particular must not exceed a predetermined temperature threshold at any point in order to avoid the surrounding explosive atmosphere from being ignited by a hot housing point.
- the heat transferred in the second subspace can be released by gas exchange with the environment. At the same time, it is prevented that possibly high temperatures at the capacitor in the second subspace can lead to an ignition of the surrounding atmosphere, since the second subspace is also encapsulated in a pressure-tight manner with respect to the surroundings.
- the housing has outer wall sections adjoining the first partial space, which essentially seal the first partial space gas-tight to the surroundings.
- At least one door, at least one flap or at least one cover of the housing can allow access to the first sub-space and / or second sub-space, so that there can be ignition-proof gaps between the first sub-space and the surroundings.
- ignition-proof gaps means that there is no essential and in particular no intended gas exchange.
- the at least one door, the at least one flap or the at least one cover can close gas-tight.
- An embodiment is to be understood here under the term “gas-tight”. stand, which either no or at least no specifically intended, intended gas exchange between the housing interior and the environment allows.
- the intermediate wall of the housing closes the first subspace against the second subspace gas-tight. This means that there is no specifically induced gas exchange between the two subspaces.
- the intermediate wall of the housing of the explosion-protected arrangement is designed in such a way that an ignition-proof gas exchange between the two subspaces is made possible.
- the intermediate wall can be designed in the same way as the gas-permeable outer wall section adjoining the second partial space of an outer wall of the housing.
- parts of a respective wall or the entire wall can be made of a porous material and / or a mesh-like, lattice-like material.
- gas exchange is possible on the one hand, and on the other hand the escape of flames, sparks, hot gases or the like is avoided.
- a gas-permeable, ignition-proof wall section can be produced from a random fiber structure part.
- one or more grid layers can be arranged one above the other.
- the gas-permeable, ignition-proof wall section has a medium mesh or pore size in the range of about 80 ym to 250 ym.
- the thickness of the gas-permeable, ignition-proof wall section is at least 5 mm or at least 10 mm.
- the flame-proof, gas-permeable wall section is made of a material whose temperature resistance is at least 400 ° C.
- the gas-permeable, ignition-proof wall section can be made from a chromium-alloyed steel, such as stainless steel.
- the refrigeration machine has a compressor which is arranged in the first subspace.
- the refrigerator also has an expansion device, which is preferably arranged in the first subspace.
- at least one fan, in the first subspace and / or in the second compartment may be arranged to cause an air irkulation Z. Arranging a blower in the first subspace is particularly advantageous if the intermediate wall enables an ignition-proof gas exchange between the two subspaces.
- a protective hood can be arranged on the housing, which is set up to cover the flame-proof, gas-permeable outer wall section adjoining the second partial space, in particular in order to avoid penetration of splashing water through the gas-permeable outer wall section into the second partial space. It may be advantageous if the protective hood has at least one opening to enable gas exchange between the second subspace and the surroundings. The at least one opening is preferably not arranged in a direct, straight line with respect to the gas-permeable outer wall section, in particular around the desired spray water to achieve protection.
- the inner volume of the first partial space is larger than the inner volume of the second partial space.
- the explosion-proof arrangement has a control device for controlling the refrigerator.
- the control device is set up to control or regulate the temperature in the first partial space and / or in the second partial space in connection with the refrigerator.
- the control device can additionally or alternatively also control at least one blower, which can be arranged in the first subspace and / or in the second subspace. It is advantageous if at least one temperature sensor is present in at least one partial space in order to determine the temperature in the relevant partial space and / or on an outer wall area of the housing which encloses the relevant partial space.
- FIG. 1 shows a schematic representation, similar to a block diagram, of an exemplary embodiment of an explosion-protected arrangement comprising an explosion-protected housing and a refrigerator,
- FIGS. 4 and 5 each show a schematic, perspective view of a gas-permeable, ignition-proof structure, as can be used for a wall or a wall section in any embodiment of the explosion-proof arrangement.
- an exemplary embodiment of an explosion-protected arrangement 10 is schematically illustrated, which has an explosion-proof housing 11.
- the explosion-proof housing 11 has several and preferably six outer walls 12, of which only four outer walls are illustrated in FIG. 1 in the schematic sectional view.
- the housing 11 has a total of a cuboid shape.
- the housing 11 can also have other shapes, such as cylindrical, prismatic or other free forms with planes and / or curved outer walls 12 explosive atmosphere.
- the housing 11 is designed with the type of protection flameproof (Ex-d) according to one of the standards EN60079-1 or IEC 60079-1.
- the housing interior 13 is divided by an intermediate wall 15 of the housing 11 into a first sub-space 16 and a second sub-space 17.
- the intermediate wall 15 is designed such that it separates the first partial space from the second partial space 17 in an impact-resistant manner.
- the intermediate wall thus forms a flame-proof barrier between the two subspaces 16, 17.
- Both subspaces 16, 17 are each explosion-proof in the type of protection flameproof enclosure (Ex-d).
- the explosion-proof arrangement 10 includes at least one device which can represent an ignition source for the potentially explosive atmosphere in the environment 14, for example at least one electrical and / or electronic device 21 which in the first part 16 of the housing 11 or of the housing interior 13 is arranged.
- the at least one electrical and / or electronic device 21 is housed in the first subspace 16 of the housing 11 explosion-proof.
- Any electrical connections or lines from the environment 14 in the first compartment 16 are explosion-proof through ei ne outer wall 12, as is known in the field of explosion protection.
- Such lines or connections can either be sealed gas-tight with the outer wall 12 with the formation of an ignition-proof gap or by a potting, or can be guided in an explosion-proof manner through an outer wall 12 into the first subspace 16.
- the at least one electrical and / or electronic device 21 generates heat. This heat is emitted into the first sub-space 16 and heats the outer walls 12 surrounding the first sub-space 16.
- the temperature of the atmosphere in the first sub-space 16 is increased, which also applies to the operation of the at least one egg electrical and / or electronic device 21 may be undesirable.
- the explosion-proof arrangement 10 has a refrigerator 22.
- the refrigeration machine 22 provides a closed fluid circuit of a refrigerant, which has different units in the fluid circuit. assumes gates states.
- the refrigerant is compressed by a compressor 23 of the refrigerating machine 22 and is condensed in a heat exchanger or condenser 24 adjoining the compressor 23 and thus liquefied. Heat is released when the refrigerant is liquefied.
- the capacitor 24 is arranged in the second subspace 17.
- the condenser 24 is formed by a condenser coil 25, which is serpentine or meandering in the second subspace 17 angeord net.
- the condenser tube coil 25 is passed through the intermediate wall 15 and is fluidly connected to the compressor 23 at one end, whereas the opposite end is fluidly connected to an expansion device 26 of the refrigerator 22.
- the expansion device 26 can have, for example, an expansion valve and / or a capillary tube.
- the expansion device 26 reduces the pressure of the refrigerant and downstream of the expansion device 26, the refrigerant is passed to a heat exchanger or evaporator 27.
- the refrigerant absorbs heat and evaporates at a relatively low temperature. This process is also known as evaporative cooling.
- the refrigerant from the evaporator 27 is then fed back to the compressor 23 and in this way a closed fluid circuit of the refrigerator 22 is achieved.
- the evaporator 27 is arranged in the first subspace 16 in order to absorb the heat given off by the at least one electrical and / or electronic device 21.
- the United poet 23 and the expansion device 26 in the first part room 16 arranged.
- standard components or assemblies can be used for the chiller.
- SAmtli che components of the refrigerator 22 are explosion protected either in the first sub-space 16 or in the second sub-space 17.
- the evaporator 27 is formed analogously to the condenser 25 by a serpentine or meandering evaporator coil, which can be laid in the first sub-space 16 such that the heat emission of the at least one electrical and / or electronic device 21 and the absorption by the refrigerant is optimized is, in particular, in that a portion of the evaporator coil 28 takes place in spatial proximity to the at least one electrical and / or electronic device 21. Additionally or alternatively, at least sections of the at least one evaporator coil 28 can be laid along one or more outer walls 12 - or at least sections thereof - which adjoin the first partial space 16. As a result, excessive local heating of an outer wall 12 in question can be avoided.
- At least one temperature sensor 30 can be arranged in the first subspace 16 and / or the second subspace 17, each of which generates a corresponding temperature signal T1-T4 and is directed to the respective temperature signal T1-T4 to a control device 31 to be transmitted.
- three temperature sensors 30 are arranged in the first subspace 16, which generate a first temperature signal TI, a second temperature signal T2 and a third temperature signal T3 and transmit them to the control device 31.
- a further rer temperature sensor 30 is arranged, which generates a fourth temperature signal T4 and transmits it to the control device 31.
- the control device 31 can evaluate the temperature signals T1-T4 and, depending on this, control the refrigeration machine 22 via a first control signal S1, for example the compressor 23.
- the control device 31 can generate a relevant control signal, for example a second control signal S2 for a blower 32 in the first subspace 16 and a third control signal S3 for a blower 32 arranged in the second subspace 17.
- At least one outer wall section of an outer wall 12 adjoining the second partial space 17 is designed as a gas-permeable outer wall section 12a.
- one of the outer walls 12 adjoining the second partial space 17 is designed as a gas-permeable outer wall so that the gas-permeable outer wall section 12a forms the entire outer wall 12.
- the gas-permeable outer wall section 12a is designed to be flame-proof, so that the second subspace 17 is explosion-proof against the environment 14 and, for example, meets the pressure-tight encapsulation (Ex-d) requirement.
- the gas-permeable outer wall section 12a is formed by porous material 35, which is made, for example, of a tangled fiber structure material.
- the porous material 35 has mitei intertwined, disorderly arranged fibers, which can have a diameter of about 70 ym to 130 ym.
- the pore size of the porous material 35 can have at least 80 ⁇ m and a maximum of 250 ⁇ m.
- the porosity of the porous material 35 is preferably in the range from 60% to 80%.
- the gas-permeable outer wall section 12a can be formed from a mesh or grid material 36 (FIG. 5).
- the mesh size is about at least 80 ym and a maximum of 250 ym.
- Several layers 37 with different lattice structures or lattice rod orientations can be arranged one above the other, on the one hand to allow gas flow through the lattice material 36 and on the other hand to extinguish flames, sparks and hot gases.
- a combination of the porous material 35 with the grid material 36 is also possible in order to form an ignition-proof, gas-permeable outer wall section 12a.
- the at least one gas-permeable outer wall section 12a which is flame-proof, has a
- the intermediate wall 15 can also have at least one gas-permeable intermediate wall section 15a which is designed to be flame-proof.
- the flame-proof, gas-permeable intermediate wall section 15a can be constructed analogously to the gas-permeable outer wall section 12a and, for this purpose, can have, for example, porous material 35 and / or lattice material 36, which on the one hand enables gas exchange between the first sub-space 16 and the second sub-space 17 and on the other hand nevertheless ensures the ignition penetration safety between maintains the first subspace 16 and the second subspace 17.
- the intermediate wall 15 is designed in a manner analogous to an outer wall 12 adjoining the second partial space 17, so that it is completely flame-proof and gas-permeable.
- the intermediate wall 15 and / or an outer wall 12 can also be only partially gas-permeable and, for example, have an insert in order to form the gas-permeable outer wall section 12a and / or the gas-permeable intermediate wall section 15a, as is shown schematically in FIG. 2.
- the intermediate wall 15 can also be essentially impermeable to gas, so that there is no deliberate and intentional gas exchange between the two subspaces 16, 17 (Fig. 3).
- FIGS. 1-3 can also be combined with one another.
- an entire outer wall 12 adjoining the second partial space 17 can be designed to be flame-proof and gas-permeable, as shown in FIG. 1.
- the intermediate wall 15 can be designed in accordance with the exemplary embodiment in accordance with FIG.
- the exemplary embodiments according to FIGS. 1-3 are identical, so that reference can be made to the above description of FIG. 1.
- the temperature sensors 30 and the control device 31 are omitted in FIGS. 2 and 3.
- At least one fan 32 in the second subspace 17 can be sufficient to support the air circulation between the second subspace 17 and the surroundings 14.
- at least one blower 32 can also be present in the first sub-space 16 if air circulation within the first sub-space 16 is advantageous in order to transfer the heat to the Ver steamer 27 and / or an improved temperature distribution in the first subspace 16 and on the adjacent to the first subspace 16 outer walls 12 of the housing 11 to support zen.
- the explosion-protected arrangement 10 can optionally also have a protective hood 40, which is set up to cover the at least one ignition-proof, gas-permeable outer wall section 12a and is arranged on the outside of the housing 11.
- the protective hood 40 covers the at least one gas-permeable outer wall section 12a, in particular in order to protect it from splash water directed directly at the gas-permeable outer wall section 12a.
- the protective hood 40 has at least one and preferably a plurality of openings 41 to enable gas exchange between the second subspace 17 and the surroundings 14.
- the at least one opening 41 is arranged in such a way that it does not face the gas-permeable outer wall section 12a in a straight direction.
- the explosion-proof arrangement 10 provides effective heat removal of the heat given off by the at least one electrical and / or electronic device 21 from the first subspace 16 into the second subspace 17.
- There is an air Z irkulation with the environment 14 allows to give ERS warm air to the outside and receiving cooler air from the ambient fourteenth Overall, a very even heat distribution is sufficient. This avoids hot spots on the outer walls 12 of the housing 11, which can serve as ignition sources for the potentially explosive atmosphere in the environment 14.
- the temperature can be recorded at one or more points, in particular at least one temperature of the housing wall 12 of the housing 11, in particular at a point where there is a risk that the relevant outer wall 12 of the housing 11 very heated and could serve as an ignition source.
- the invention relates to an explosion-proof arrangement 10 having an explosion-proof housing 11, which encloses a housing interior 13, and which is designed in the type of protection flameproof enclosure.
- the housing interior 13 is divided by an intermediate wall 15 into a first sub-space 16 and a second sub-space 17 in such a way that the two sub-spaces 16, 17 are explosion-protected relative to one another and therefore each sub-space 16, 17 corresponds to the type of protection from pressure-resistant encapsulation.
- At least one outer wall portion 12a of an outer wall 12 of the housing 11 is designed to be ignition-proof and gas-permeable and enables gas exchange between the second subspace 17 and the surroundings 14.
- a refrigerator 22 is arranged, the evaporator 27 being in the first subspace 16 and the capacitor 24 is located in the second subspace 17.
- Heat from at least one electrical and / or electronic device 21 or another heat source in the first subspace 16 can thus be dissipated into the second subspace 17 and from there into the surrounding area 14. This measure can very effectively prevent local hot spots from forming, which can ignite the potentially explosive atmosphere in the environment 14.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018119947.3A DE102018119947B4 (de) | 2018-08-16 | 2018-08-16 | Explosionsgeschützte Anordnung |
| PCT/EP2019/071254 WO2020035375A1 (de) | 2018-08-16 | 2019-08-07 | Explosionsgeschützte anordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3837480A1 true EP3837480A1 (de) | 2021-06-23 |
Family
ID=67667821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19755847.1A Withdrawn EP3837480A1 (de) | 2018-08-16 | 2019-08-07 | Explosionsgeschützte anordnung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210308509A1 (de) |
| EP (1) | EP3837480A1 (de) |
| CN (1) | CN112673224B (de) |
| DE (1) | DE102018119947B4 (de) |
| WO (1) | WO2020035375A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018120877B4 (de) * | 2018-08-27 | 2021-09-30 | R.Stahl Schaltgeräte GmbH | Explosionsgeschütztes Gehäuse |
| CN111930070B (zh) * | 2020-10-09 | 2021-01-01 | 亿昇(天津)科技有限公司 | 一种正压防爆系统控制方法 |
| US11566923B2 (en) * | 2020-11-18 | 2023-01-31 | Datapaq Ltd. | Thermal protection system and method including a sealed thermal barrier and a thermally-protected pressure relief valve |
| US12276529B2 (en) | 2021-06-11 | 2025-04-15 | Abb Schweiz Ag | Explosion management display and methods thereof |
| US11549832B2 (en) * | 2021-06-11 | 2023-01-10 | Abb Schweiz Ag | Explosion management and methods thereof |
| CN113525219B (zh) * | 2021-07-23 | 2022-04-19 | 深圳市风行趋势科技有限公司 | 一种用于油罐车无线采集及控制的防爆箱 |
| CN116045043B (zh) * | 2022-12-06 | 2026-01-06 | 肯赛思防爆技术(苏州)有限公司 | 正压控制系统排气组件、防爆控制箱及防爆正压柜 |
| CN117135893A (zh) * | 2023-10-24 | 2023-11-28 | 滨州泽郦精密金属科技有限公司 | 一种防爆火焰探测器壳体 |
| DE102024132552A1 (de) * | 2024-11-07 | 2026-05-07 | Eppendorf Se | Zentrifuge mit brennbarem Temperierungsmedium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201577020U (zh) * | 2009-05-22 | 2010-09-08 | 沈正皓 | 恒温空调式隔爆箱 |
| US9492694B2 (en) * | 2013-08-27 | 2016-11-15 | R. Stahl Schaltgeräte GmbH | Pressure release device for housings with flameproof encapsulation with porous body having interference fit |
| US20170319881A1 (en) * | 2014-11-06 | 2017-11-09 | R. Stahl Schaltgeraete Gmbh | Flame-guard filter composed of a number of layer sequences, and arrangements of flame-guard filters and their use |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3203799A1 (de) | 1982-02-04 | 1983-08-11 | Küleg Kühlmöbelfabrik und Apparatebau GmbH, 6501 Heidesheim | Expolsionsgeschuetzter kuehlschrank |
| US4484690A (en) * | 1982-03-08 | 1984-11-27 | Service Machine Co. | Flame arresting ventilated wall for an explosion-proof enclosure |
| DE19515121C2 (de) * | 1995-04-25 | 1998-02-26 | Kurt Wolf Gmbh & Co | Gehäuseaufbau für im Freien aufstellbare, elektrische und/oder elektronische Geräte |
| CN100469228C (zh) * | 2006-04-26 | 2009-03-11 | 沈正皓 | 恒温式隔爆箱 |
| CN1867241A (zh) * | 2006-06-07 | 2006-11-22 | 沈正皓 | 防爆箱用空气温度冷却器 |
| WO2009117363A1 (en) * | 2008-03-17 | 2009-09-24 | The Board Of Regents Of The University Of Texas System | Superfine fiber creating spinneret and uses thereof |
| DE102010013313B4 (de) * | 2010-03-29 | 2020-07-02 | R. Stahl Schaltgeräte GmbH | Gehäuse mit erweitertem Umgebungstemperaturbereich |
| DE102011010799A1 (de) * | 2011-02-09 | 2012-08-09 | Krohne Messtechnik Gmbh | Explosionsgeschütztes Gerät |
| CN202547263U (zh) * | 2012-02-22 | 2012-11-21 | 上海钧华防爆设备有限公司 | 复合式集成防爆冷柜 |
| CN203867605U (zh) * | 2014-06-20 | 2014-10-08 | 中煤科工集团重庆研究院有限公司 | 矿用硐室防隔爆空调 |
| DE102015112284A1 (de) * | 2015-07-28 | 2017-02-02 | R. Stahl Schaltgeräte GmbH | Explosionsgeschützte Anordnung und Verfahren zu deren Herstellung |
-
2018
- 2018-08-16 DE DE102018119947.3A patent/DE102018119947B4/de not_active Expired - Fee Related
-
2019
- 2019-08-07 US US17/268,259 patent/US20210308509A1/en not_active Abandoned
- 2019-08-07 CN CN201980053530.3A patent/CN112673224B/zh active Active
- 2019-08-07 WO PCT/EP2019/071254 patent/WO2020035375A1/de not_active Ceased
- 2019-08-07 EP EP19755847.1A patent/EP3837480A1/de not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201577020U (zh) * | 2009-05-22 | 2010-09-08 | 沈正皓 | 恒温空调式隔爆箱 |
| US9492694B2 (en) * | 2013-08-27 | 2016-11-15 | R. Stahl Schaltgeräte GmbH | Pressure release device for housings with flameproof encapsulation with porous body having interference fit |
| US20170319881A1 (en) * | 2014-11-06 | 2017-11-09 | R. Stahl Schaltgeraete Gmbh | Flame-guard filter composed of a number of layer sequences, and arrangements of flame-guard filters and their use |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2020035375A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20210308509A1 (en) | 2021-10-07 |
| CN112673224B (zh) | 2023-03-10 |
| CN112673224A (zh) | 2021-04-16 |
| DE102018119947A1 (de) | 2020-02-20 |
| WO2020035375A1 (de) | 2020-02-20 |
| DE102018119947B4 (de) | 2020-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3837480A1 (de) | Explosionsgeschützte anordnung | |
| EP2909901B1 (de) | Explosionsgeschütztes gehäuse mit einem ventilator | |
| DE102009029392A1 (de) | Explosionsgeschützte Kälteanlage mit brennbarem Kältemittel | |
| WO2020156848A1 (de) | Explosionsgeschützte vorrichtung mit zünddurchschlagsicherem gasströmungspfad und kühlkörper | |
| EP3769595B1 (de) | Gehäuse mit innerer druckreduzierung | |
| EP3631925B1 (de) | Explosionssicheres gehäuse mit innerer druckentlastung | |
| DE102018120877B4 (de) | Explosionsgeschütztes Gehäuse | |
| EP0424533A1 (de) | Wärmeisolierungsvorrichtung für tieftemperaturgegenstände und herstellungsmethode für eine packung aus gekühlten strahlungsschirmen für eine solche vorrichtung | |
| EP2346052B1 (de) | Gehäuse für eine elektrische Maschine | |
| DE3143759C2 (de) | ||
| DE102015008123A1 (de) | Vakuumdämmkörper | |
| DE102019104616A1 (de) | Schutzgehäuse in der Explosionsschutzart druckfeste Kapselung | |
| EP2980305B1 (de) | Haushaltsgerät wie beispielsweise ein wäschetrockner, waschtrockner, eine waschmaschine, ein geschirrspüler mit einer wärmepumpeneinrichtung | |
| WO2020156615A1 (de) | Wärmeübertrager für brennbare kältemittel | |
| EP3199207A2 (de) | Druckentlastungsvorrichtung, modulare druckentlastungseinheit und brandschutzvorrichtung | |
| EP0663063B1 (de) | Wärmespeicher, insbesondere latentwärmespeicher | |
| EP1574809B1 (de) | Multispektrales Tarnmittel | |
| WO2003105316A1 (de) | Elektrische maschine mit statorkühlung | |
| DE1451089A1 (de) | Kuehlanordnung | |
| DE102022118941B4 (de) | Kühlungsanordnung für ein Isolierungsmodul | |
| DE102014215649A1 (de) | Kühlvorrichtung zur Kühlung einer elektrischen Maschine mit radialer Wärmeauskopplung | |
| DE20119423U1 (de) | Datensicherheitsschrank | |
| DE881519C (de) | Isolierung fuer Kuehlraeume, Kuehlschraenke u. dgl. | |
| DE102013219169B4 (de) | Anordnung zur Wärmeisolation eines MR-Magneten | |
| DE1501107A1 (de) | Kaeltemaschine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20210309 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20230929 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20250729 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20251202 |