The invention relates to a device for automatically preventing seawater from entering a marine ventilator. The device comprises an air duct, an air cap, a connecting rod, a weather tight cover and electromagnets; the air cap is supported by the connecting rod; the weathertight cover can move up and down along the connecting rod under the vertical guide of the connecting rod; a plurality of electromagnets for adsorbing the weather tight cover below are distributed and fixed in the air cap; a pressure sensor is arranged at the set height of the air duct, and the pressure sensor and the electromagnets are electrically connected with the control unit; when seawater reaches the set position of the pressure sensor, the electromagnets are powered off, the outlet of the air duct is covered after the weather tight cover falls down, and when the seawater is lower than the set position of the pressure sensor, the electromagnets are powered off, and the outlet of the air duct is opened after the weather tight cover is attracted. Automatic control over opening and closing of the air duct can be achieved according to the specific situation that seawater submerges the air duct; when the seawatersubmerges the set height of the air duct, the air duct can be automatically closed; and when the seawater withdraws, the air duct is automatically opened, and good ventilation in a cabin is guaranteed.
本发明涉及一种自动防止海水进入船用通风筒的装置,包括风筒,风帽、连杆、风雨密盖、电磁铁;风帽由连杆支撑,风雨密盖在连杆的竖直导向下可沿连杆上下移动;风帽内分布固定若干用于吸附下方风雨密盖的电磁铁;风筒的设定高度处设有压力传感器,压力传感器、电磁铁均与控制单元电连接;当海水达到压力传感器的设定位置时,电磁铁断电,风雨密盖下落后封盖风筒的出口,当海水低于压力传感器的设定位置时,电磁铁得点,风雨密盖被吸附后打开风筒的出口。本发明可根据海水淹没风筒的具体情况实现风筒开闭的自动控制:当海水没过通风筒的设定高度时,该通风筒可自动关闭,当海水退去,通风筒自动打开,保证舱室内的良好通风。
Device for automatically preventing seawater from entering marine ventilator
一种自动防止海水进入船用通风筒的装置
2021-01-15
Patent
Electronic Resource
Chinese
IPC: | B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS |
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