External gas blocking device with multiple air-guiding openings for confined space
A closed space, external gas technology, applied in the field of airflow, can solve problems such as bodily injury, and achieve the effects of soft lines, easy manufacturing and reasonable structure
Active Publication Date: 2016-07-06
NEWLAND DIGITAL TECH CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide an external gas barrier device in a closed space with multiple air guide ports that is simple in structure and easy to install and use. Exhaust gas and peculiar smell continue to enter the confined space of the ticket booth through the window, causing harm to the staff's body
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[0019] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0020] The confined space described in the present invention is an industrial safety term, which refers to a sealed and closed environment, which is relatively isolated from the outside world, with limited import and export, and poor natural ventilation; a sealed or semi-sealed space, which is affected by the environment for a special period of time There is a sealed or semi-sealed space inside. Such as manholes, tunnels, pump rooms, etc. From the perspective of safety, it mainly refers to the restricted access of personnel and the existence of harmful factors. Said confined spaces are restricted due to restricted access to the site, plus confined spaces often contain excess volatile solvent vapors and any other environmental conditions t...
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The invention provides an external gas blocking device with multiple air-guiding openings for a confined space. The blocking device comprises a confined space shell, draught guiding annular ducts and an air blowing device. The air blowing device transports airflow to the draught guiding annular ducts. A window is formed in the confined space shell. The draught guiding annular ducts are arranged surrounding the rim of the window. Air-guiding openings are formed in the annular walls of the draught guiding annular ducts, and the air-guiding openings are used for receiving airflow from inner channels of the draught guiding annular ducts and guiding the airflow to flow to the exterior of the confined space shell. The annular walls adjacent to the air-guiding openings are Coanda surfaces and the air-guiding openings are arranged to guide the airflow to flow through the Coanda surfaces. The blocking device can be mounted on windows of places such as roadside ticket booths, highway ticket booths and kiosks, tail gas, peculiar smell and the like of a vehicle can be exhausted from the confined space through the blocking device, so that staff working in the confined space are protected against physical injury caused by various noxious gas.
Description
technical field [0001] The invention relates to the technical field of the airflow field, in particular to an external air barrier device for a closed space with multiple air guide ports. Background technique [0002] During the whole process of vehicles passing through the ticket booth and interacting with the staff in the ticket booth, the window of the ticket booth must be kept open all the time. The exhaust gas and peculiar smell of the vehicle will enter the airtight ticket booth through the window of the ticket booth, causing physical damage to the staff. hurt. In addition, harmful gases such as smog can easily enter the relatively airtight ticket booth through this window. Since the ticket booth window is the channel for the staff to interact with the outside world, and the frequency of use is extremely high, it is impossible to install some actual automated isolation equipment on the window. Contents of the invention [0003] The technical problem to be solved by...
Claims
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IPC IPC(8): F24F7/013
CPCF24F7/013
Inventor 林峰仰林勇
Owner NEWLAND DIGITAL TECH CO LTD