WO2016204671A1 - Dispositif de traitement de l'air et procédé de contrôle d'une fuite d'air dans un dispositif de traitement de l'air - Google Patents

Dispositif de traitement de l'air et procédé de contrôle d'une fuite d'air dans un dispositif de traitement de l'air Download PDF

Info

Publication number
WO2016204671A1
WO2016204671A1 PCT/SE2016/050447 SE2016050447W WO2016204671A1 WO 2016204671 A1 WO2016204671 A1 WO 2016204671A1 SE 2016050447 W SE2016050447 W SE 2016050447W WO 2016204671 A1 WO2016204671 A1 WO 2016204671A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
rotor
chamber
pressure
heat exchanger
Prior art date
Application number
PCT/SE2016/050447
Other languages
English (en)
Inventor
Anders Jakobsson
Original Assignee
Fläkt Woods AB
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 Fläkt Woods AB filed Critical Fläkt Woods AB
Priority to EP16812040.0A priority Critical patent/EP3311090A4/fr
Publication of WO2016204671A1 publication Critical patent/WO2016204671A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/047—Sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/104—Heat exchanger wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1096—Rotary wheel comprising sealing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • Air treatment device and method for controlling air leakage in an air treatment device are Air treatment device and method for controlling air leakage in an air treatment device
  • the present invention relates to a rotary heat exchanger disposed at an air handling unit, and the handling of airflow leakage around the rotor in the rotary heat exchanger.
  • the rotary heat exchanger is a particularly efficient variant of heat recovery device, for energy exchange between two air streams, but just because the rotating part - the rotor - is rotating, the rotor must have a certain space/gap to the surrounding surfaces and separation walls and the like.
  • the spaces in the air handling unit are sealed in relation to each other to avoid, for example, the air from a room getting mixed with the fresh air supplied to the room, which air in that case gets a lower air quality.
  • a brush seal or another edge seal which can withstand wear, is arranged on the rotor or on the surrounding plates which encloses the periphery of the rotor and connects to the inner surfaces of the unit. Moreover, the surrounding plates are in turn sealed towards interior surfaces to prevent air from leaking around these. Because of the moving part - the rotor - it is almost impossible to completely avoid leakage and therefore it is important that the pressure setup in the air handling unit is controlled, so the airflow leakage that occurs, and that is impossible to avoid, so to speak runs in the right direction, i.e. supply air is allowed to leak to exhaust air but not the opposite. This is well known technique which has been used during a long period of time.
  • the purging sector is a short circuit between the exhaust and supply air, which, as a result of the pressure difference between the supply (higher pressure) and exhaust air (lower pressure), blows away the exhaust air from the channels in the sector, before they enter into the supply air.
  • the device is aimed primarily at plants in explosive environments, and it points out that the pressure around the rotor absolutely must be higher than the pressure in the gas / air flows through the rotor, to thereby ensure that any leakage that occurs is with air from the pressurizing source, which "pumps" in the clean air in the rotor housing. Furthermore, there is a discussion of using temperature monitoring and heating of the external air that is supplied through the pressurizing source.
  • an air treatment device according to the preamble of claim 1 , where a rotor in a rotary heat exchanger is enclosed in a housing - a rotor housing - which is sealed both towards the rotor periphery and towards surrounding interior surfaces of an air handling unit, in which the rotary heat exchanger is disposed.
  • the device is characterized in that it comprises a pressure compensation means arranged between the rotor chamber, with its air volume, and an outdoor air chamber.
  • the invention therefore take care of the problem by ensuring that the leaking air is leaking from the rotor chamber air volume and out of the rotor chamber through correct pressure balance, that is, "in the right direction", whereby no contaminated air can leak into the supply air, and in addition it is only the cleanest air that is allowed to leak, i.e. the outdoor air.
  • the air handling unit is adjusted by conventional means such as throttling plates and/or dampers and the like, so that the pressure in the outdoor air chamber, before the rotary heat exchanger, is higher than any other pressure, which surrounds the heat exchanger, and the pressure compensation means ensures that equate the pressure in the rotor chamber and the pressure in the outdoor air chamber.
  • These two pressures are at least approximately equal, but may differ slightly due to a possible slight pressure drop in connection with the pressure compensation means.
  • the leaking air around the rotor is of course minimized in a conventional manner because leakage air is not in any way desirable. In this way different forms of advanced "labyrinth seals" is not needed, but more simple seals can be used around the rotor and the rotor chamber instead.
  • the device are a number of measurement devices deployed in the air handling unit for recording of the pressures to be monitored, so that a thereto arranged control device, on the basis of the measured pressures, ensures that the pressure in the outdoor air chamber is the highest.
  • a control device on the basis of the measured pressures, ensures that the pressure in the outdoor air chamber is the highest.
  • the pressures in the unit is balanced so that the outdoor air chamber has the highest pressure in relation to the other chambers surrounding the rotor chamber, whereby also the rotor chamber air volume essentially gets the same pressure through the pressure compensation means.
  • the leakage around the rotor will therefore take place with the cleanest air and in the right direction out from the rotor chamber, which prevents
  • the control equipment is balancing the pressures in the air handling unit for handling of the leakage flow, for proper pressurization in the outdoor air chamber and thus in the rotor chamber.
  • at least one damper is arranged in the second air stream to provide additional ability for controlling and balancing of the pressure drops in the air handling unit and around the rotary heat exchanger.
  • the pressure compensation means in its simplest form a hole in the front wall of the rotor chamber, that is, in the front wall between the rotor chamber and the outdoor air chamber.
  • the pressure compensation means a suitably dimensioned tube connecting / short cutting the pressure set between the outdoor air chamber and the rotor chamber, by that the tube is connected with one end in the rotor chamber and its other end in the outdoor air chamber.
  • the pressure compensation means a suitably dimensioned pipe connecting / short cutting the pressure set between the outdoor air chamber and the rotor chamber, by that the pipe is connected with one end in the rotor chamber and its other end in the outdoor air chamber. In the same manner as immediately above, this solution may be appropriate when pressure compensation between the outdoor air chamber and the rotor chamber must take place although they are located at a distance from each other.
  • the rotor chamber designed as a complete casing, which in this case comprises both the so-called front wall and the rear wall, which so to speak covers the periphery of the rotor and the surrounding internal surfaces of the air handling unit.
  • the casing further also comprises four gables arranged around the rotor in its length direction and connecting to the front wall and the rear wall, so that a complete casing enclosing the rotor, but with openings in the front wall and the rear wall for the flow of the exhaust air flow and outdoor air flow through the rotor.
  • the rotary heat exchanger can be delivered and installed as one part that is sealed towards the surrounding and which in its front wall comprises the pressure compensation means.
  • the object is achieved to solve the above mentioned problems by a method of controlling the leakage at a rotary heat exchanger in an air handling unit according to the preamble of claim 7, where a rotor at a rotary heat exchanger is enclosed in a housing - a rotor housing, which housing comprises an air volume surrounding the rotor.
  • the invented method therefore takes care of the above described problem by make sure that the leaking air is leaking from the air volume of the rotor chamber and out from the rotor chamber by correct pressure balance, i.e. in the "right direction", whereby no contaminated exhaust air can leak to the supply air, and further it is only the cleanest air that is allowed to leak, i.e. the outdoor air.
  • the air handling unit is adjusted so that the pressure in the outdoor air chamber, before the rotary heat exchanger, is higher than all other pressures surrounding the heat exchanger, and that a pressure compensation means makes sure to equalize the pressure of the rotor chamber with the pressure of the outdoor air chamber.
  • These two pressures are at least approximately equal, but may differ slightly due to a possible small pressure drop in connection with the pressure compensation means.
  • the leaking air around the rotor is of course minimized in a conventional manner because leakage air is not in any way desirable. In this way different forms of advanced "labyrinth seals" is not needed, but more simple seals can be used around the rotor and the rotor chamber if wanted.
  • the outdoor air chamber always has the highest pressure and thus also the pressure in the rotor chamber, at all operating points of the air handling unit, by registering the pressures in some parts in the air handling unit and through a control equipment regulate the pressures to always fulfill this criteria.
  • Fig.1 shows a principal picture of an air handling unit 4 with a rotary heat exchanger 3, according to the invention as well as an enlargement showing a pressure compensation means 27, which is short-cutting the air between an outdoor air chamber 25 in the air handling unit 4, and an air volume 16 of a rotor chamber 6 at the rotary heat exchanger 3.
  • Fig.2 shows a variant of a rotary heat exchanger 3, designed as a complete housing 29 and comprising the pressure compensation means 27 in the form of a hole in a front wall 7 of the housing 29.
  • Fig.1 shows a principal picture of an air handling unit 4 with a rotary heat exchanger 3.
  • the air handling unit 4 comprises a supply air fan 1 arranged in a first air stream 17 and an exhaust air fan 2 arranged in a second air stream 18.
  • the rotary heat exchanger 3 is arranged to exchange energy between the first and the second air stream 17, 18.
  • the first air stream 17 sucks in outdoor air 23, which preferably passes a damper 28 and a filter 32 before it arrives an outdoor air chamber 25, then passes through a rotor 5 of the rotary heat exchanger 3, in conventional manner. After the air passed the rotor 5 it is termed supply air 24 and arrives thus to an supply air chamber 26, to then pass through the supply air fan 1 and out of the air handling unit 4 as supply air 24.
  • the second air stream 18 sucks in exhaust air 19, which preferably passes a damper 31 and a filter 32 before it arrives to an exhaust air chamber 21 , after which it passes through the rotor 5 of the rotary heat exchanger 3, in conventional manner.
  • exhaust air 19 After the air has passed through the rotor 5 it is referred to as extract air 20 and thereby arrives to an extract air chamber 22, then to pass the exhaust fan 2 and out of the air handling unit 4 as extract air 20. So far this is in a conventional way and by conventional technique.
  • the rotor 5 is arranged in a rotor chamber 6, which is sealed towards surrounding interior surfaces 14 within the air handling unit 4, preferably by that the rotor chamber 6 comprises a front wall 7 and a rear wall 8, which are sealed towards interior surfaces 14 of the air handling unit 4 by means of edge seals 15, but between the rotor periphery and the, at the periphery connecting front wall 7 and rear wall 8, are respectively arranged peripheral seals 13 in a conventional manner.
  • These can for example have the form of brush seals or other forms of seals.
  • the front wall 7 and the rear wall 8 comprises a respective opening 9, 10 which reveals front surfaces 1 1 , 12 of the rotor 5, to allow through flow through the rotor.
  • the rotor 5 is disposed in the rotor chamber 6, is an enclosed air volume 16 formed around the rotor 5, which according to the invention achieves essentially the same static pressure p 16 as the static pressure p 2 s of the outdoor air chamber 25, in that a pressure compensation means 27 is provided to short- cut the air pressure.
  • the pressure compensation means 27 is a hole in the wall - the front wall 7 - dividing the chambers 6, 25 from each other.
  • pressure sensors, control equipment etc. which are used to balance the pressure set in the air handling unit 4 along with for example frequency control of the fans 1 , 2, and along with outdoor air damper 28 and/or exhaust air damper 31.
  • Fig.2 shows an alternative embodiment wherein the rotary heat exchanger 3 is designed as a "closed" housing 29, which encloses the rotor 5 through the front wall 7 and rear wall 8 and four side gables 30.
  • the rotor chamber 6 which encloses the air volume 16, in the same way as the previously described embodiment in Figure 1 , and the rotor chamber 6 is sealed against leakage except some leakage that occurs between the rotor 5 and the openings 9, 10 at the peripheral seal 13, and also at a purging sector, as previously described.
  • peripheral seal 13 for example in the form of a brush strip, between the rotor 5 periphery and the walls 7, 8 as the leak that occurs here is controlled regarding that it is clean air and that the pressure in the rotor chamber 6 is controlled.
  • the pressure compensation means 27 in the form of a hole, arranged and in that half of the air handling unit that connects to the outdoor air chamber 25.
  • the pressure controlled an adjusted to be highest in the outdoor air chamber 25, wherein also the pressure in the rotor chamber 6 by the pressure compensation means 27 is the same, or at least in principle the same. At least, the pressure is regulated so that the pressure in the air volume 16 of the rotor chamber 6 always is slightly higher than the surrounding other chambers - exhaust air chamber 21 , supply air chamber 26 and extract air chamber 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

L'invention concerne un dispositif et un procédé de contrôle d'une fuite d'air au niveau d'un échangeur thermique rotatif (3) placé dans une unité de traitement d'air (4), ledit échangeur thermique rotatif (3) comprenant un rotor (5) supporté axialement. Le rotor (5) est prévu dans une chambre de rotor (6) qui entoure ledit rotor, ladite chambre de rotor (6) comprenant un volume d'air (16) qui entoure le rotor (5). L'invention est caractérisée en ce que la pression du volume d'air (16) dans la chambre de rotor (6) est garantie comme étant toujours égale à, ou au moins quasiment égale à, la pression dans une chambre d'air extérieur (25), et en ce qu'un moyen de compensation de pression (27) égalise les pressions entre les chambres (6, 25). Cela garantit en outre que la pression dans la chambre d'air extérieur (25) est la pression la plus élevée, en raison du fait que les pressions à l'intérieur de l'unité de traitement d'air (4) sont contrôlées et régulées à l'aide de dispositifs de mesure et d'un dispositif de commande afin de garantir que la pression dans la chambre d'air extérieur (25) est la pression la plus élevée au niveau de tous les points de fonctionnement, moyennant quoi toute fuite éventuelle autour du rotor (5) se produit toujours à partir de la chambre de rotor (6) dans la direction qui va vers les autres chambres (21, 22, 26).
PCT/SE2016/050447 2015-06-16 2016-05-18 Dispositif de traitement de l'air et procédé de contrôle d'une fuite d'air dans un dispositif de traitement de l'air WO2016204671A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16812040.0A EP3311090A4 (fr) 2015-06-16 2016-05-18 Dispositif de traitement de l'air et procédé de contrôle d'une fuite d'air dans un dispositif de traitement de l'air

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1550823-7 2015-06-16
SE1550823A SE539066C2 (sv) 2015-06-16 2015-06-16 Luftbehandlingsanordning och sätt att kontrollera luftläckage vid luftbehandling

Publications (1)

Publication Number Publication Date
WO2016204671A1 true WO2016204671A1 (fr) 2016-12-22

Family

ID=57546182

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2016/050447 WO2016204671A1 (fr) 2015-06-16 2016-05-18 Dispositif de traitement de l'air et procédé de contrôle d'une fuite d'air dans un dispositif de traitement de l'air

Country Status (3)

Country Link
EP (1) EP3311090A4 (fr)
SE (1) SE539066C2 (fr)
WO (1) WO2016204671A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7849913B2 (en) * 2003-06-13 2010-12-14 Klingenburg Gmbh Rotating heat exchanger and method for sealing the same
EP2573496A1 (fr) * 2011-09-20 2013-03-27 Swegon ILTO Oy Ensemble formant rotor et unité de récupération de chaleur/énergie dotée de l'ensemble formant rotor
US20130140777A1 (en) * 2011-12-05 2013-06-06 Venmar Ces, Inc. Rotary wheel sealing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9404668B2 (en) * 2011-10-06 2016-08-02 Lennox Industries Inc. Detecting and correcting enthalpy wheel failure modes
US9671122B2 (en) * 2011-12-14 2017-06-06 Lennox Industries Inc. Controller employing feedback data for a multi-strike method of operating an HVAC system and monitoring components thereof and an HVAC system employing the controller
US10598398B2 (en) * 2012-03-20 2020-03-24 Air Distribution Technologies Ip, Llc Energy recovery ventilation smoke evacuation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7849913B2 (en) * 2003-06-13 2010-12-14 Klingenburg Gmbh Rotating heat exchanger and method for sealing the same
EP2573496A1 (fr) * 2011-09-20 2013-03-27 Swegon ILTO Oy Ensemble formant rotor et unité de récupération de chaleur/énergie dotée de l'ensemble formant rotor
US20130140777A1 (en) * 2011-12-05 2013-06-06 Venmar Ces, Inc. Rotary wheel sealing system

Also Published As

Publication number Publication date
EP3311090A1 (fr) 2018-04-25
SE539066C2 (sv) 2017-04-04
SE1550823A1 (sv) 2016-12-17
EP3311090A4 (fr) 2018-11-21

Similar Documents

Publication Publication Date Title
WO2016058457A1 (fr) Douille de refroidissement d'un couple de friction de garniture mécanique d'étanchéité double face et son système de refroidissement à pompe centrifuge
JP3573748B2 (ja) ケーシングを貫通する軸の貫通部の軸封装置及びその作動方法
TWI634223B (zh) Rotary cathode unit for magnetron sputtering device
TWI550220B (zh) 流體控制閥
US20150345643A1 (en) Shaft Seal Assembly
RU2016143334A (ru) Клапан с низким сопротивлением потоку и регулируемым расходом для управления направлением движения текучей среды
JP2013007477A5 (fr)
CN105042085A (zh) 一种高低温箱低速穿箱轴气体密封装置
JP4550896B2 (ja) 特にタンク洗浄装置に用いる駆動ユニット
JP6395341B2 (ja) ヒータ一体型フィルタ、及び回転機械システム
KR101105373B1 (ko) 회전 열 교환기 및 그 밀폐 방법
US2703674A (en) Turbine driven fan unit
EP3311090A1 (fr) Dispositif de traitement de l'air et procédé de contrôle d'une fuite d'air dans un dispositif de traitement de l'air
JP5098258B2 (ja) ダイナモ試験装置用回転電機
KR20000029959A (ko) 회전형축열식열교환기의간극감지장치
JP6772081B2 (ja) 熱交換器
KR101676853B1 (ko) 로터리식 열교환기
US10927961B2 (en) Shaft seal assembly
US6796328B2 (en) Damper system with sealing plug
CN105891390B (zh) 一种热脱附管老化处理设备
JP6416148B2 (ja) 全閉形回転電機
EP2573496A1 (fr) Ensemble formant rotor et unité de récupération de chaleur/énergie dotée de l'ensemble formant rotor
US2338593A (en) Gas-cooled dynamoelectric machine
RU2640878C1 (ru) Корпус гидроэлектромашины
CN208124957U (zh) 一种烟气－烟气换热器低泄漏风辅助装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16812040

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2016812040

Country of ref document: EP