摘要:
A modular element (1, 14, 18, 101, 201) for the composition of blackout panels with airflow passage, comprises a substantially flat plate (3, 103, 203); first fins (5, 105, 205) protruding by one free edge from at least one face of the plate to define open channels (2) between them and with opposing ends facing onto opposing lateral edges of the plate (3, 103, 203); connecting means (4, 7, 104, 107, 204, 207) designed to permit the assembly of the element (1, 14, 18, 101, 201) with other elements to form a blackout panel having on opposing faces the extreme opposites of the channels and the plates of the elements disposed crosswise to its extension. A panel is obtained by assembling a plurality of elements (1, 14, 18, 101, 201), the elements being disposed close together in a row so as to have the plates (3, 103, 203) parallel to one another, each plate (3, 103, 203) constituting a closure for the channels (2) of an adjacent element to form ducts (15) with open ends on opposing faces of the panel for the passage of air between such opposing faces of the panel.
摘要:
A process for manufacturing screening and humidifying panels (10) in particular for air circulation in avicultural facilities or greenhouses comprises the steps of shaping cardboard sheets with non-rectilinear undulated channels (12) by means of sequential pressing of the individual channels (12) and gluing together of the sheets arranged with alternating differrent mutual inclination of the channels (12). To realize the process a press comprising a die (21) made up of a plurality of segments (24) each representing at least part of a channel (12) and moving sequentially to press the cardboard starting from one end of the press is proposed.
摘要:
A modular element (1, 14, 18, 101, 201) for the composition of blackout panels with airflow passage, comprises a substantially flat plate (3, 103, 203); first fins (5, 105, 205) protruding by one free edge from at least one face of the plate to define open channels (2) between them and with opposing ends facing onto opposing lateral edges of the plate (3, 103, 203); connecting means (4, 7, 104, 107, 204, 207) designed to permit the assembly of the element (1, 14, 18, 101, 201) with other elements to form a blackout panel having on opposing faces the extreme opposites of the channels and the plates of the elements disposed crosswise to its extension. A panel is obtained by assembling a plurality of elements (1, 14, 18, 101, 201), the elements being disposed close together in a row so as to have the plates (3, 103, 203) parallel to one another, each plate (3, 103, 203) constituting a closure for the channels (2) of an adjacent element to form ducts (15) with open ends on opposing faces of the panel for the passage of air between such opposing faces of the panel.
摘要:
A centrifugal device (17), in particular for operating shutters (20) disposed facing a fan (15), comprises a first end plate (23) connected to the end of a shaft (16) for rotating the fan (15). Facing said first plate (23) is a second end plate (24) rotatingly supporting, on an axis substantially coinciding with the shaft (16), a fastening element (19) for a control rod (18) which operates the mechanism when the two plates move away from and towards each other. The plates being linked to each other by at least three centrally articulated arms (26, 27) provided with counterweights (29) close to the central joint (28), on rotation of the shaft the centrifugal force acting on the counterweights (29) causing the central joints (28) to move apart from each other.
摘要:
A centrifugal device (17), in particular for operating shutters (20) disposed facing a fan (15), comprises a first end plate (23) connected to the end of a shaft (16) for rotating the fan (15). Facing said first plate (23) is a second end plate (24) rotatingly supporting, on an axis substantially coinciding with the shaft (16), a fastening element (19) for a control rod (18) which operates the mechanism when the two plates move away from and towards each other. The plates being linked to each other by at least three centrally articulated arms (26, 27) provided with counterweights (29) close to the central joint (28), on rotation of the shaft the centrifugal force acting on the counterweights (29) causing the central joints (28) to move apart from each other.