Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a negative pressure weighing cover. The negative pressure weighing cover is built by splicing and assembling an aluminum profile and a composite wall and comprises an upper box body, a machine room, a lower box body, a working area, a protection area and a supervision system. The supervision system is arranged on a control panel; a primarily efficient filter and a middle efficient filter are arranged on an air returning plate of the inner side of the lower box body; a UPS is arranged on the bottom corner of the lower box body; the machine room is provided with a main fan and a direct-current fan; an efficient filer A and an efficient filter B are arranged in the upper box body; the efficient filter A is sealed through a liquid seal trough, and an air outlet of the efficient filter A is provided with a flow equalizing diaphragm plate and a high-speed wind plate; and the high-speed wind plate is communicated with a high-speed wind curtain. A buffer partition plate is arranged in the upper box body. A double-area structure of the working area and the protection area is adopted, and the vertical one-way airflow and the double-side efficient filters are utilized, so that internal circulation and partial discharge of the working area are kept, negative pressure in the working area is made to prevent cross contamination, and external environment and safety of indoor personnel are protected.
The invention discloses a negative pressure weighing cover. The negative pressure weighing cover is built by splicing and assembling an aluminum profile and a composite wall and comprises an upper box body, a machine room, a lower box body, a working area, a protection area and a supervision system. The supervision system is arranged on a control panel; a primarily efficient filter and a middle efficient filter are arranged on an air returning plate of the inner side of the lower box body; a UPS is arranged on the bottom corner of the lower box body; the machine room is provided with a main fan and a direct-current fan; an efficient filer A and an efficient filter B are arranged in the upper box body; the efficient filter A is sealed through a liquid seal trough, and an air outlet of the efficient filter A is provided with a flow equalizing diaphragm plate and a high-speed wind plate; and the high-speed wind plate is communicated with a high-speed wind curtain. A buffer partition plate is arranged in the upper box body. A double-area structure of the working area and the protection area is adopted, and the vertical one-way airflow and the double-side efficient filters are utilized, so that internal circulation and partial discharge of the working area are kept, negative pressure in the working area is made to prevent cross contamination, and external environment and safety of indoor personnel are protected.
Negative pressure weighing cover
LIU XIAOTONG (Autor:in)
08.04.2015
Patent
Elektronische Ressource
Englisch
Protective cover for weighing instrument with suspended sliding door
| Europäisches Patentamt | 2020