公开(公告)号：EP1390650A1

公开(公告)日：2004-02-25

申请号：EP02745166.5

申请日：2002-05-24

申请人： Pres-Vac Engineering A/S

发明人： S RENSEN, Emil, Aarestrup ,  RAAGAARD, Hans-Henrik, Pedersen

IPC分类号： F16K17/12

CPC分类号： F16K31/084 ,  F16K17/02 ,  F16K17/12 ,  F16K17/194 ,  Y10T137/774 ,  Y10T137/7779 ,  Y10T137/7905

摘要： The invention relates to a pressure valve with a flow passage (3) having a valve body (14) and a lifting plate (21) that has a surface area A2 transversally of the flow passage (3) that exceeds the cross sectional area A1 of the flow passage (3) at the valve seat (13) of the valve body, said pressure valve being configured such that, at any time, the container is in communication with the area above the lifting plate (21). The invention is characterised in that the pressure valve also comprises a magnet (8) and a magnetisable body (9); and that the force of attraction Fm between the magnet (8) and the magnetisable body (9) and the mass of the lifting plate (21) contributes to defining the abutment force Fc of the valve body (14) against the valve seat (13) in the closed state of the pressure valve.

公开(公告)号：EP2875269B1

公开(公告)日：2018-10-31

申请号：EP13737277.7

申请日：2013-07-17

申请人： Pres-Vac Engineering A/S

发明人： PALMQVIST, Ronni

IPC分类号： F16K17/12 ,  F16K24/04 ,  F16K1/38 ,  F16K1/54 ,  F16K31/08

CPC分类号： F16K1/54 ,  F16K1/38 ,  F16K17/12 ,  F16K24/04 ,  F16K31/084

摘要： A pressure relief valve for pressure equalization between an essentially closed space and the surrounding atmosphere is disclosed. The pressure relief valve includes a valve housing with:—a wall defining a flow passage with an upwardly oriented outflow,—a valve body arranged to cooperate with a valve seat arranged in the outflow,—a stem configured for axial guidance of the valve body,—a damper arranged to dampen axial movement of the stem, wherein the damper is configured such that force curves of compression and expansion respectively diverge due to hysteresis loss or pronounced hysteresis loss.

公开(公告)号：EP1390650B1

公开(公告)日：2005-10-05

申请号：EP02745166.5

申请日：2002-05-24

申请人： Pres-Vac Engineering A/S

发明人： SOERENSEN, Emil, Aarestrup ,  RAAGAARD, Hans-Henrik, Pedersen

IPC分类号： F16K17/12

CPC分类号： F16K31/084 ,  F16K17/02 ,  F16K17/12 ,  F16K17/194 ,  Y10T137/774 ,  Y10T137/7779 ,  Y10T137/7905

公开(公告)号：EP1343680A1

公开(公告)日：2003-09-17

申请号：EP01273586.6

申请日：2001-12-20

申请人： Pres-Vac Engineering A/S

发明人： SORENSEN, Emil, Aarestrup

IPC分类号： B63B25/08

CPC分类号： F16K24/06 ,  B63B25/14

摘要： The invention relates to a vacuum relief unit for pressure equalisation between the ambient atmosphere and a tank in a tanker, wherein the vacuum relief unit comprises: a valve housing (10) with a first opening (12), whereby the valve housing (10) is able to communicate with the tank, and a second opening (24) with a seat (30) for a valve body (40) that is configured for being conveyable into the valve housing (10) to permit inflow of air to the tank; and a mechanism (100) configured for being able to prevent passage of seawater through the valve housing (10) in case of an accident, wherein the tanker is at least partially immersed into seawater, which mechansim (100) features a first movable part (160) that is arranged outside the valve housing (10) and whose movement can be controlled by the liquid pressure of the sea water; a second movable part (150) that can be advanced within the valve housing (10) and that is movably coupled to the first movable part (160). The invention is characterised in that the second movable part (150) is configured for being conveyable to abut on the valve body (40) by an increasing movement of the first movable part (160) to cause the valve body (40) to return to its abutment on the seat (30).

摘要翻译： 本发明涉及一种真空释放单元，用于在环境大气和油罐之间的罐中进行压力平衡，其中真空释放单元包括：具有第一开口（12）的阀壳体（10），由此阀壳体（10） 能够与罐相通，以及具有用于阀体（40）的座（30）的第二开口（24），所述阀体构造成可输送到阀壳体（10）中以允许空气流入罐中; 以及机构（100），其构造成能够在事故的情况下防止海水通过所述阀壳体（10），其中所述油罐至少部分地浸入到所述海水中，所述机构（100）具有第一可移动部件 160），其布置在阀壳体（10）的外部并且其运动可以由海水的液体压力控制;第二可移动部件（150），其可在阀壳体（10）内前进并且可移动地联接 到第一可移动部分（160）。 本发明的特征在于，第二可移动部件（150）构造成通过第一可移动部件（160）的增加的运动而被传送以抵靠在阀体（40）上，以使阀体（40）返回到 其在座椅（30）上的邻接。