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1. 发明公开

EP2300752A1 SOUND ATTENUATOR FOR LOW FREQUENCIES, METHOD FOR MANUFACTURING SOUND ATTENUATOR FOR LOW FREQUENCIES AND SYSTEM FOR ATTENUATING LOW FREQUENCIES FOR EXAMPLE IN AIR-CONDITIONING DUCTS OF PAPER MILLS 有权转让
标题翻译：消声器低频，产生低频和系统中的消声器，用于阻尼低频例如在造纸厂空气通道法
公开(公告)号：EP2300752A1
公开(公告)日：2011-03-30
申请号：EP09738277.4
申请日：2009-04-28
申请人： Metso Paper, Inc.
发明人： HELENIUS, Kalle , PETTERSSON, Henrik
IPC分类号： F24F13/24 , G10K11/172 , F16L55/033
CPC分类号： F24F13/24 , F24F2013/245
摘要： The invention relates to a sound attenuator (1) for low frequencies for example for an air-conditioning duct (2) of paper mills, the flow (20), travelling in which duct, can be arranged to pass through the sound attenuator, which sound attenuator comprises a sound attenuator frame (3), which can be arranged in connection with the air-conditioning duct, and which sound attenuator frame comprises a flow duct (4) and, arranged in connection with the sound attenuator frame, at least one attenuator member (5) operating according to the plate resonator principle. The attenuator member comprises a first resonator plate (6), the outer surface of which is arranged to be the inner wall of the flow duct, i.e. along which outer surface the flow is arranged to travel, a framework (7), whereto the first resonator plate is attached by its inner surface, a second plate (9), which is essentially parallel to the first resonator plate. The second plate is attached to the framework by its inner surface, whereby the second plate, the framework and the first resonator plate delimit at least one attenuator unit (10). The first resonator plate, attached to the framework, is a steel plate, the first resonator plate is attached to the framework by laser welding and the framework comprises a pressure balancing opening (11). The invention further relates to a method for manufacturing a sound attenuator (1) for low frequencies, and a system for attenuating low frequencies for example in air- conditioning ducts (2) of paper mills.

2. 发明授权

EP0907794B1 METHOD FOR REDUCING THE CONSUMPTION OF FRESH WATER IN A PAPER MILL BY MEANS OF A COOLING TOWER 失效
标题翻译：一种用于减少用水量造纸厂由冷却塔的方式
公开(公告)号：EP0907794B1
公开(公告)日：2002-11-20
申请号：EP97923121.4
申请日：1997-05-22
申请人： Metso Paper, Inc.
发明人： HEIKKILÄ, Pertti , PETTERSSON, Henrik , SIPILÄ, Ilkka , SAARINEN, Markku , GARTZ, Rainer
IPC分类号： D21F1/66 , F25B39/00
CPC分类号： D21F1/66 , F28C1/02 , F28C1/14 , F28F25/08 , Y10S165/90 , Y10S165/909 , Y10S261/11
摘要： The invention concerns a method for reducing the consumption of fresh water and energy in a paper mill. In the method fresh water is passed into the paper mill for various needs, and a cooling tower (100) is utilized, by whose means the water that has been heated in the papermaking process is cooled. All fresh waters or a substantial proportion of the fresh waters of the paper mill are introduced into the process through the water system of the cooling tower. Further, the invention concerns a cooling tower, in which there is/are an inlet/inlets (10) for passing the water (Win) to be cooled into the cooling tower (100), nozzles (13) or equivalent for dispersing the water that was passed in and that is to be cooled onto heat transfer faces, filler pieces and/or filler plates (15), which disperse the water to be cooled so as to increase the contact area between the water and the cooling air, an outlet/outlets (17) for passing the cooled water (Wout) out of the cooling tower (100), as well as blowers (23) for blowing the cooling air (Ain } Aout) through the cooling tower (100). The cooling tower (100) is composed of cooling modules (301...30N), each of which comprises the elements (10...23) mentioned above, and the number (N) and the height of said cooling modules (301...30N) have been chosen in accordance with the requirement of cooling capacity, and that said cooling modules (301...30N) have been interconnected mechanically in parallel and connected selectively and optimally in view of the flow (Ain } Aout) of the cooling air and of the flow (Win } Wout) of the water to be cooled.

3. 发明授权

EP1399622B1 IMPINGEMENT SYSTEM IN THE DRYING SECTION OF A PAPER MACHINE OR THE LIKE 有权
标题翻译：应用系统用于干燥部的造纸机或类似
公开(公告)号：EP1399622B1
公开(公告)日：2006-08-16
申请号：EP02755025.0
申请日：2002-06-26
申请人： Metso Paper, Inc.
发明人： SUNDQVIST, Hans , NURMI, Jarkko , PETTERSSON, Henrik
IPC分类号： D21F5/18 , D21F5/04
CPC分类号： D21F5/18 , D21F5/044
摘要： The invention relates to an air impingement system arranged outside the jacket of an air impingement roll in the drying section of a paper machine or the like for heating and drying a web travelling around the said air impingement roll. The air impingement system comprises a mainly closed hood, which has control means for directing air onto the paper web. From the hood, air is directed by blowing with at least one fan to the blower nozzles and back again into the said hood as a circulation air process, and the system incorporates at least one heating device for heating the air. The air impingement system's hood and its said equipment are used in conjunction with an air impingement roll, which is of the size of approximately 1.5 - 2 m in diameter. The hood of the air impingement roll is at maximum 5 m high, preferably only 1.5 - 2.5 m high.

4. 发明授权

EP1117965B1 REACTIVE SILENCER FOR INDUSTRIAL AIR CHANNELS AND ITS USE 有权
标题翻译：无功消声通风路径及其用途
公开(公告)号：EP1117965B1
公开(公告)日：2004-06-09
申请号：EP99969785.7
申请日：1999-09-27
申请人： Metso Paper, Inc.
发明人： PETTERSSON, Henrik , NISSILÄ, Keijo , JOKINEN, Juhani , HEIKKILÄ, Tauno
IPC分类号： F24F13/24 , F01N1/02 , F16L55/027 , G10K11/172
CPC分类号： D21F1/48
摘要： A reactive silencer intended for industrial supply air or exhaust air channels, the said silencer being comprised of a sound attenuator chamber (10), to which is fitted a partition wall (12) dividing the sound attenuator chamber into a first and second chamber part (14, 16). The partition wall (12) is fitted with two or more channels or pipes (26, 26', 26'') which connect the first chamber part (14) to the second chamber part (16). In this way a silencer of small size and simple structure is obtained for attenuating noise, especially that produced by large or several small air channels.

5. 发明公开

EP1399622A1 IMPINGEMENT SYSTEM IN THE DRYING SECTION OF A PAPER MACHINE OR THE LIKE 有权
标题翻译：应用系统用于干燥部的造纸机或类似
公开(公告)号：EP1399622A1
公开(公告)日：2004-03-24
申请号：EP02755025.0
申请日：2002-06-26
申请人： Metso Paper, Inc.
发明人： SUNDQVIST, Hans , NURMI, Jarkko , PETTERSSON, Henrik
IPC分类号： D21F5/18 , D21F5/04
CPC分类号： D21F5/18 , D21F5/044
摘要： The invention relates to an air impingement system arranged outside the jacket of an air impingement roll in the drying section of a paper machine or the like for heating and drying a web travelling around the said air impingement roll. The air impingement system comprises a mainly closed hood, which has control means for directing air onto the paper web. From the hood, air is directed by blowing with at least one fan to the blower nozzles and back again into the said hood as a circulation air process, and the system incorporates at least one heating device for heating the air. The air impingement system's hood and its said equipment are used in conjunction with an air impingement roll, which is of the size of approximately 1.5 - 2 m in diameter. The hood of the air impingement roll is at maximum 5 m high, preferably only 1.5 - 2.5 m high.

6. 发明公开

EP1117965A1 REACTIVE SILENCER FOR INDUSTRIAL AIR CHANNELS AND ITS USE 有权
标题翻译：无功消声通风路径及其用途
公开(公告)号：EP1117965A1
公开(公告)日：2001-07-25
申请号：EP99969785.7
申请日：1999-09-27
申请人： Metso Paper, Inc.
发明人： PETTERSSON, Henrik , NISSILÄ, Keijo , JOKINEN, Juhani , HEIKKILÄ, Tauno
IPC分类号： F24F13/24 , F01N1/02 , F16L55/027 , G10K11/172
CPC分类号： D21F1/48
摘要： A reactive silencer intended for industrial supply air or exhaust air channels, the said silencer being comprised of a sound attenuator chamber (10), to which is fitted a partition wall (12) dividing the sound attenuator chamber into a first and second chamber part (14, 16). The partition wall (12) is fitted with two or more channels or pipes (26, 26', 26'') which connect the first chamber part (14) to the second chamber part (16). In this way a silencer of small size and simple structure is obtained for attenuating noise, especially that produced by large or several small air channels.

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