The invention relates to the technical field of PV valves, and discloses a PV valve for a ballast tank. The PV valve for the ballast tank comprises a vacuum pressure relief rod, a lifting bolt is arranged on the outer side of the vacuum pressure relief rod, a shell is arranged at the lower end of the lifting bolt, a floater is arranged inside the shell, a pressure valve disc guide seat is arrangedat the lower end of the floater, a pressure spring is arranged between the pressure valve disc guide seat and the floater, and a pressure valve disc body is arranged at the lower end of the pressurevalve disc guide seat. The PV valve for the ballast tank has the advantages that pressure relief can be conveniently completed when the air pressure in the ballast tank is too high and needs to be released outwards, meanwhile, pressurization in the ballast tank can be conveniently completed when the air pressure in the ballast tank is too low and needs to be increased inwards, water can be prevented from entering the ballast tank when the water pressure in the ballast tank is too high, the problem that when vacuum pressure in the ballast tank needs to be discharged, discharging is inconvenientis solved, and a better using prospect can be brought.
本发明涉及PV阀技术领域,且公开了一种用于压载舱的PV阀,包括真空压力泄放杆,所述真空压力泄放杆的外侧设置有吊环螺钉,所述吊环螺钉的下端设置有壳体,所述壳体的内部设置有浮子,所述浮子的下端设置有压力阀盘导向座,所述压力阀盘导向座和浮子之间设置有压力弹簧,所述压力阀盘导向座的下端设置有压力阀盘本体。该用于压载舱的PV阀,具备能够在压载舱内气压过高需要向外泄压时较为方便的完成泄压,同时能够在压载舱内气压过低时需要向内增压较为方便的完成压载舱内的增压,且在压载舱水压过大时能够防止水进入压载舱,解决了当压载舱内的真空压力需要排放时排放不便的问题,能够带来更好的使用前景。
PV valve for ballast tank
一种用于压载舱的PV阀
2021-03-23
Patent
Electronic Resource
Chinese
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