摘要:
The invention discloses an air outlet protection structure, an outdoor unit of an air conditioner and a method for designing an air outlet protection structure. The air outlet protection structure comprises: a central circular disk (10); and a radiating rib (20), extending from an outer edge of the central circular disk (10) to a direction away from the central circular disk (10). An included angle between a first side surface (21) of the radiating rib (20) and a central axis of the central circular disk (10) is a, as formula (I), where V r is a flowing velocity of an airflow in a rotation direction of a blade, V z is a flowing velocity of the airflow in an axial direction of a blade shaft, I is a distance from a point on the first side surface (21) of each radiating rib (20) to the central axis of the central circular disk (10), and f is a rotation frequency of the blade shaft. The air outlet protection structure, the outdoor unit of the air conditioner and the method for designing an air outlet protection structure are determined according to the characteristics of a flow field of an air duct, and can reduce the hindering effect of an air outlet protection apparatus on a fluid as far as possible, thereby improving the air output volume of a fan and reducing the noise of the entire outdoor unit of the air conditioner.
摘要:
The invention discloses an air outlet protection structure, an outdoor unit of an air conditioner and a method for designing an air outlet protection structure. The air outlet protection structure comprises: a central circular disk (10); and a radiating rib (20), extending from an outer edge of the central circular disk (10) to a direction away from the central circular disk (10). An included angle between a first side surface (21) of the radiating rib (20) and a central axis of the central circular disk (10) is a, as formula (I), where V r is a flowing velocity of an airflow in a rotation direction of a blade, V z is a flowing velocity of the airflow in an axial direction of a blade shaft, I is a distance from a point on the first side surface (21) of each radiating rib (20) to the central axis of the central circular disk (10), and f is a rotation frequency of the blade shaft. The air outlet protection structure, the outdoor unit of the air conditioner and the method for designing an air outlet protection structure are determined according to the characteristics of a flow field of an air duct, and can reduce the hindering effect of an air outlet protection apparatus on a fluid as far as possible, thereby improving the air output volume of a fan and reducing the noise of the entire outdoor unit of the air conditioner.
摘要:
An incubator (1) comprises an incubator chamber (2) defined by a bottom part (4) and a top casing (3) covering a bed area (5) of the bottom part (4). The incubator (1) comprises an air treatment and circulation device (6) for treating air and circulating it through the chamber (2), said air treatment and circulation device (6) including a ventilator (7). The air treatment and circulation device (6) is connected to chamber inlet openings (31a, 31b, 34) which are arranged along one or more sides of said bed area (5), allowing treated air to flow from the treatment and circulation device (6) into the chamber (2). The air treatment and circulation device (6) furthermore is connected to at least one chamber outlet opening (10) allowing air to flow out from the chamber (2) to the treatment and circulation device (6). The ventilator (7) of the air treatment and circulation device (6) is arranged in a ventilator chamber (21) and the air treatment and circulation device (6) furthermore has a distribution chamber (23) which is in communication with the ventilator chamber (21) and with the chamber inlet openings (31a, 31b, 34). A Venturi hump (35) is arranged at the transition between the ventilator chamber (21) and the distribution chamber (23).
摘要:
Die Laminarisatorpassagevorrichtung hat einen Laminarisator (8) und mindestens ein Medienpanel (17). Das Medienpanel (17) ist in den Laminarisator (8) in Form eines Durchgangselementes (Laminarisator-Passage-Elementes) eingesetzt und hat an seinem stromabwärtigen Ende (18) eine Rundung, wodurch sich in geringer Distanz stromabwärts des Medienpanels (17) eine Strömung ausbildet, die bis zu einer Arbeitsebene (15) turbulenzarm oder laminar ist.
摘要:
L'invention concerne un dispositif de protection d'une zone d'opération, notamment pour la manipulation de produits. Ledit dispositif comprenant un plateau (2), appelé plateau de diffusion, présentant deux faces opposées, l'une dite face supérieure (202), orientée vers la zone d'opération (100), et l'autre, dite face inférieure (200). Ledit plateau de diffusion (2) comprend un étage de redressement (20), un étage d'orientation (21) et un écran de diffusion (22), lesdits étages présentant chacun des ouvertures de passage d'un flux de fluide (7), et chaque ouverture de l'écran de diffusion (22) débouchant sur la face supérieure (202) du plateau (2) et présentant une section de passage dont la surface est plus petite que celle de chacune desdites ouvertures (215) de l'étage d'orientation (21). L'invention concerne également un procédé de manipulation correspondant.
摘要:
An incubator (1) comprises an incubator chamber (2) defined by a bottom part (4) and a top casing (3) covering a bed area (5) of the bottom part (4). The incubator (1) comprises an air treatment and circulation device (6) for treating air and circulating it through the chamber (2), said air treatment and circulation device (6) including a ventilator (7). The air treatment and circulation device (6) is connected to chamber inlet openings (31a, 31b, 34) which are arranged along one or more sides of said bed area (5), allowing treated air to flow from the treatment and circulation device (6) into the chamber (2). The air treatment and circulation device (6) furthermore is connected to at least one chamber outlet opening (10) allowing air to flow out from the chamber (2) to the treatment and circulation device (6). The ventilator (7) of the air treatment and circulation device (6) is arranged in a ventilator chamber (21) and the air treatment and circulation device (6) furthermore has a distribution chamber (23) which is in communication with the ventilator chamber (21) and with the chamber inlet openings (31a, 31b, 34). A Venturi hump (35) is arranged at the transition between the ventilator chamber (21) and the distribution chamber (23).
摘要:
A substantially cubic work space extends from an upper opening to the interior of a housing. A substantially cubic lower space extends from a lower opening to the interior of the housing. A front cover covering the upper opening is provided on the front of the work space. The front cover is, for example, a transparent resin sheet bent and protruding from the upper opening to the interior of the work space, and is held, by a horizontal rod, in the form of the letter L in cross-section. A clean bench having a simple structure, easily installed, and being capable of achieving a high level of cleanliness even if installed in a relatively unclean environment can thus be provided.