An apparatus for transporting a tail end in a fiber web machine from one structural section to another includes nozzles for guiding the tail end on the guide plate by means of an air flow such that the blown air is brought onto a guide plate shaped into a curve in such a way that the air flow of the blown air guides the tail end onto the curved guide plate by means of a bump functioning as an aerodynamic profile formed in the curved guide plate.
An apparatus for transporting a tail end in a fiber web machine from one structural section to another includes nozzles for guiding the tail end on the guide plate by means of an air flow such that the blown air is brought onto a guide plate shaped into a curve in such a way that the air flow of the blown air guides the tail end onto the curved guide plate by means of a bump functioning as an aerodynamic profile formed in the curved guide plate.
An apparatus for transporting a tail end in a fiber web machine from one structural section to another includes nozzles for guiding the tail end on the guide plate by means of an air flow such that the blown air is brought onto a guide plate shaped into a curve in such a way that the air flow of the blown air guides the tail end onto the curved guide plate by means of a bump functioning as an aerodynamic profile formed in the curved guide plate.
An apparatus for measuring dewatering in the wet end of a paper machine includes a measuring receptacle functioning at normal air pressure, in which receptacle the amount of the water of the negatively-pressurized dewatering points of the paper machine is measured by means of a pressure-difference transmitter and of a measuring weir.
D21F 1/66 - Prise de la pâte, élimination de l'eau ou sa récupérationRéutilisation des eaux blanches
G01F 1/002 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu où l’écoulement s’effectue dans un passage ouvert
G01F 15/08 - Séparateurs d'air ou de gaz en combinaison avec des compteurs de liquidesSéparateurs de liquide en combinaison avec des compteurs de gaz
G01F 23/14 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme par mesurage de la pression
5.
METHOD FOR TRANSPORTING A TAIL END IN A FIBER WEB MACHINE FROM ONE STRUCTURAL SECTION TO ANOTHER, AND ALSO AN APPARATUS AND THE USE OF IT
The invention relates to a method and to an apparatus for transporting a tail end (6) in a fiber web machine from one structural section to another in such a way that the apparatus comprises nozzles (8) for guiding the tail end (6) on the guide plate by means of an air flow (4). What is essential in the invention is that the blown air (2) is brought onto a guide plate (1 ) shaped into a curve in such a way that the air flow (4) of the blown air (2) guides the tail end (6) onto the curved guide plate (1) by means of a bump (3) functioning as an aerodynamic profile, i.e. a bulge guiding the air flow (4), formed in the curved guide plate (1 ). In addition, the invention relates to a use of a curved plate (1) for transporting a tail end (6) in a fiber web machine from one structural section to another.
B65H 23/24 - Positionnement, tension, suppression des à-coups ou guidage des bandes longitudinal par l'action d'un fluide, p. ex. pour retarder la bande en marche
D21F 7/00 - Autres parties constitutives des machines à fabriquer des feuilles continues de papier
D21G 9/00 - Autres accessoires pour machines à fabriquer le papier
6.
METHOD FOR TRANSPORTING A TAIL END IN A FIBER WEB MACHINE FROM ONE STRUCTURAL SECTION TO ANOTHER, AND ALSO AN APPARATUS AND THE USE OF IT
The invention relates to a method and to an apparatus for transporting a tail end (6) in a fiber web machine from one structural section to another in such a way that the apparatus comprises nozzles (8) for guiding the tail end (6) on the guide plate by means of an air flow (4). What is essential in the invention is that the blown air (2) is brought onto a guide plate (1 ) shaped into a curve in such a way that the air flow (4) of the blown air (2) guides the tail end (6) onto the curved guide plate (1) by means of a bump (3) functioning as an aerodynamic profile, i.e. a bulge guiding the air flow (4), formed in the curved guide plate (1 ). In addition, the invention relates to a use of a curved plate (1) for transporting a tail end (6) in a fiber web machine from one structural section to another.
D21G 9/00 - Autres accessoires pour machines à fabriquer le papier
B65H 23/24 - Positionnement, tension, suppression des à-coups ou guidage des bandes longitudinal par l'action d'un fluide, p. ex. pour retarder la bande en marche
D21F 7/00 - Autres parties constitutives des machines à fabriquer des feuilles continues de papier
7.
APPARATUS FOR MEASURING THE DEWATERING OF A PAPER MACHINE AT DIFFERENT POINTS OF THE WET END AND A METHOD FOR IMPLEMENTING IT
The object of the invention is an apparatus and a method for measuring dewatering in the wet end of a paper machine. What is essential in the invention is that the measuring system (26) comprises an essentially horizontal inlet pipe (10) on the machine level (11), which pipe is installed in the measuring receptacle (27), and in that the separation of air (22) is performed in an expanded pipe section (15) made in the inlet pipe (10) and in the outlet pipe (16) connected to it. A weir plate is installed in the measuring receptacle (27) of the measuring system (26), the weir plate functioning as a measuring weir (8) for measuring the amount of the dewatering flow, and from a pressure difference transmitter (20) installed on one side, which transmitter measures the height of the water surface produced by the measuring weir (8) for measuring the amount of water (7).
G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
G01F 1/40 - Détails de structure des dispositifs de contraction de la veine fluide
G01F 15/08 - Séparateurs d'air ou de gaz en combinaison avec des compteurs de liquidesSéparateurs de liquide en combinaison avec des compteurs de gaz
G01F 23/14 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme par mesurage de la pression
D21F 1/66 - Prise de la pâte, élimination de l'eau ou sa récupérationRéutilisation des eaux blanches
D21G 9/00 - Autres accessoires pour machines à fabriquer le papier
The object of the invention is an apparatus for measuring dewatering in the wet end of a paper machine. What is essential in the invention is that the apparatus comprises a measuring receptacle (15) functioning at normal air pressure, in which receptacle the amount of the water (7) of the negatively-pressurized dewatering points of the paper machine is measured by means of a pressure- difference transmitter (20) and of a measuring weir (8).
G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
G01F 1/40 - Détails de structure des dispositifs de contraction de la veine fluide
G01F 15/08 - Séparateurs d'air ou de gaz en combinaison avec des compteurs de liquidesSéparateurs de liquide en combinaison avec des compteurs de gaz
G01F 23/14 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme par mesurage de la pression
D21F 1/66 - Prise de la pâte, élimination de l'eau ou sa récupérationRéutilisation des eaux blanches
D21G 9/00 - Autres accessoires pour machines à fabriquer le papier
The invention relates to a method and apparatus for passing a web tail being threaded from one paper machine section to another by way of guiding the tail with the help of an air jet from a transfer plate (1). An essential feature of the invention is to employ a construction (3) rising from the surface (2) of the transfer plate (1) to a height (5) with the shape of a linear ramp or a droplet for guiding the web tail in its travel direction (9) thereby minimizing the contact area between the web tail and the transfer plate (1).
D21F 7/00 - Autres parties constitutives des machines à fabriquer des feuilles continues de papier
D21G 9/00 - Autres accessoires pour machines à fabriquer le papier
B65H 23/24 - Positionnement, tension, suppression des à-coups ou guidage des bandes longitudinal par l'action d'un fluide, p. ex. pour retarder la bande en marche
10.
Method for controlling a regulated-rotation-speed low-pressure centrifugal fan
A method for controlling an automatic stall-prevention of a rotation-speed-regulated centrifugal fan. A control automatics is controlled by an automation system of the process wherein, the control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.
F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles
11.
METHOD AND APPARATUS FOR REDUCING THE WATER AND ENERGY CONSUMPTION OF A PAPER MACHINE WITH THE HELP OF A VACUUM SYSTEM AND OPTIMIZATION OF SOLIDS CONTENT AS WELL AS USE OF THE SAME
The invention relates to a method and an apparatus for reducing the water and energy consumption of a paper machine with the help of a vacuum system and optimization of web solids content as well as a use of the same. An essential feature of the invention is that, on the paper machine wire section (12), water is removed with the help of a hybrid vacuum system (1) serving first the vacuum locations needing a lower vacuum level and then those requiring a higher vacuum level in such a fashion that the hybrid vacuum system (1) removes water on different sections of the paper machine at the vacuum levels rendering the individually maximized energy efficiency. Additionally the solids content on the wire section (12) is optimized with the help of an un-felted and smooth press roll (13) adapted above the wire suction roll (3).
The invention relates to an apparatus for implementing a ground source heat system and further to a method utilizing the same. The invention is characterized in that the system comprises small-diameter and shallow boreholes (8) or equivalent screwably-sunken metal pipes, such as screw piles or heat pipes inserted in the soil. The pipes (13) are inserted in the boreholes (8) for transferring heat by convection and the pipes (13) are connected to a liquid-filled ground source heat circulation (7) placed in a short trench (6), wherefrom heat is further transferred along an insulated pipe (2) to the heating/cooling system of a building (1) or, vice versa, heat is transferred therefrom into the ground.
Method for controlling an automatic stall-prevention of a rotation-speed- regulated centrifugal fan. What is essential in the invention is that the control automatics is controlled by means of the automation system of the process, in which control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.
Method for controlling an automatic stall-prevention of a rotation-speed- regulated centrifugal fan. What is essential in the invention is that the control automatics is controlled by means of the automation system of the process, in which control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.
An apparatus is provided for implementing water separation in the vacuum system of a paper machine. The apparatus includes a guiding baffle structure connected to an inlet pipe and a water trap vessel, and a droplet separation cell mounted at the mouth of an outlet pipe.
The invention relates to an apparatus for implementing water separation in the vacuum system of a paper machine. The apparatus is characterized by comprising a guiding baffle structure (1) connect to an inlet pipe (8) and a water trap vessel (2) as well as a droplet separation cell (4) mounted at the mouth of an outlet pipe (9).
B01D 45/08 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge par inertie par projection contre les diaphragmes séparateurs
17.
METHOD FOR MANUFACTURING THE IMPELLER OF A CENTRIFUGAL COMPRESSOR
Method for manufacturing a composite material impeller of a centrifugal compressor or blower, said impeller being mounted directly on the shaft of an electric motor. The composite material impeller is made using an RTM process, wherein the RTM mold has a core and accurately trimmed fabrics placed therein and forming a structure in such a manner that the fabric layers, or preforms, are pulled onto the core thus achieving a maximally optimized use of materials in the structure.
F04D 29/22 - Rotors spécialement pour les pompes centrifuges
B29C 70/00 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts
18.
Method for manufacturing the impeller of a centrifugal compressor
The invention relates to a method for manufacturing the impeller of a centrifugal, that is, a radial compressor or radial blower, said impeller being mounted directly on the shaft of an electric motor. An essential feature of the invention is that the composite material impeller is made using an RTM process, wherein the RTM mold has a core and accurately trimmed fabrics placed therein in such a manner that the fabric layers, or preforms, are pulled onto the core thus achieving a maximally optimized use of materials in the structure.
B23P 15/04 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'aubes de turbine ou d'organes équivalents, en plusieurs pièces
B29C 70/02 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant des combinaisons de renforcements et de matières de remplissage dans une matrice, formant une ou plusieurs couches, avec ou sans couches non renforcées ou non remplies
B29C 70/48 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.-à-d. d'objets distincts utilisant des moules opposables, p. ex. pour déformer des préimprégnés [SMC] ou des "prepregs" avec une imprégnation des renforcements dans le moule fermé, p. ex. moulage par transfert de résine [RTM]
B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires
F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
B29C 33/44 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens ou conçus spécialement pour faciliter le démoulage d'objets, p. ex. des objets à contre-dépouille
B29C 33/52 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens ou conçus spécialement pour faciliter le démoulage d'objets, p. ex. des objets à contre-dépouille solubles ou fusibles
19.
METHOD FOR MOVING A TAIL END FROM ONE STRUCTURAL SECTION TO ANOTHER, AND ALSO AN APPARATUS AND THE USE OF IT
Apparatus for moving a tail end from one structural section to another. Essential in the invention is that the apparatus comprises a blowing nozzle (1), a Coanda plate (2), in which holes, apertures or corresponding cuttings (4) have been formed for forming a Coanda effect, and also an air removal plate (3) connected to the Coanda plate.
The invention relates to a paper machine doctor assembly comprising a doctor blade (1) and a blade holder (2) holding the same and a support member (3) mounted on the paper machine frame. Between the blade holder (2) and the member (3) is provided a separate pivot mount (4) adapted onto the member (3) so that it can be dismantled by pulling it outwardly.
A paper machine doctor assembly includes a doctor blade and a blade holder holding the same and a support member mounted on the paper machine frame. An essential feature of the assembly is that a separate pivot mount is provided between the blade holder and the support member, the separate pivot mount enabling the blade holder and the pivot mount to be disconnected from the support member by pulling the pivot mount outwardly and away from the support member.
Method for compensating for uneven shrinkage in a paper web in the press and drying sections of a paper machine, in which there is at least one open draw. In the method, a flow guide/guides are used in the head box, by means of which the machine direction orientation tendency of the fibres is reduced in the edge areas of the web and the angle of detaching of the web from the centre roll is adjusted, by directing onto the web an air jet that is located in the cross direction and the pressure of which can be adjusted in the said direction.
brevets
