초록 ▼

An explosion-proof valve (1), particularly a flap valve (1), for interrupting a flow of fluid (F), particularly in a pipeline, and comprising a valve housing (3) that has a passage opening (4) for the passage of the flow of fluid (F), and a valve seat (5) arranged at the passage opening (4), as well

An explosion-proof valve (1), particularly a flap valve (1), for interrupting a flow of fluid (F), particularly in a pipeline, and comprising a valve housing (3) that has a passage opening (4) for the passage of the flow of fluid (F), and a valve seat (5) arranged at the passage opening (4), as well as a closing element (6), particularly a flap plate (6), which comprises a sealing surface (9) and lies with the sealing surface (9) against a valve seat (5) when in a closing position. The closing element (6) is moveably mounted on a bearing (17, 17′) in the valve housing (3). The bearing (17, 17′) of the closing element (6) is designed such that the closing element (6) can be moved, in a closing direction, out of the operating position and into the closing position by rotational and linear movement.

대표청구항 ▼

1. An explosion protection valve for explosion decoupling for shutting off a fluid flow, the explosion protection valve comprising: a valve housing with a passage opening for passage of the fluid flow, and a valve seat arranged at the passage opening,a closing body with a sealing surface, whereinthe

1. An explosion protection valve for explosion decoupling for shutting off a fluid flow, the explosion protection valve comprising: a valve housing with a passage opening for passage of the fluid flow, and a valve seat arranged at the passage opening,a closing body with a sealing surface, whereinthe closing body is mounted in movable fashion in the valve housing on a bearing and is movable at least between a rest position, an operating position and a closed position,the closing body is situated in the rest position in an absence of the fluid flow, the passage opening is opened by the closing body in the operating position, and the passage opening is closed by the closing body in the closed position, and the closing body, in the closed position, bears by way of the sealing surface against the valve seat,the closing body is movable into the operating position under an action of operating pressure, and is movable into the closed position under an action of a closing pressure that differs from the operating pressure,the closing body is arrestable in the closed position by a locking device,the bearing of the closing body allows movement of the closing body in a closing direction from the operating position into the closed position by way of a rotational movement and a linear movement,the closing body is mounted on the bearing by way of an axle body,the bearing comprises a rotary guide and a linear guide for a control body which is connected rigidly to the closing body, andthe bearing additionally comprises a longitudinal guide in which the axle body is guided in a rotatable and a displaceable fashion, and a displacement direction of the longitudinal guide is parallel to a displacement direction of the linear guide for the control body. 2. The explosion protection valve as claimed in claim 1, wherein the bearing allows movement of the closing body, for transition from the operating position into the closed position, firstly purely in the rotational movement and subsequently purely in the linear movement. 3. The explosion protection valve according to claim 1, wherein the sealing surface of the closing body and the valve seat are of planar form and are oriented plane-parallel to one another when the closing body is movable in the linear movement. 4. The explosion protection valve according to claim 1, wherein the control body is rigidly connected to the closing body via the axle body, and the control body is centrally arranged with respect to the axle body. 5. The explosion protection valve according to claim 1, wherein the rotary guide and the linear guide are designed and arranged, relative to one another, and allow introduction of the control body into the linear guide from the rotary guide only in a predefined rotational position. 6. The explosion protection valve according to claim 5, wherein the rotary guide has a recess in which the control body, guided in at least one of a radial and an axial direction, is at least partially rotatable about a geometric axis of rotation defined by the rotary guide. 7. The explosion protection valve according to claim 6, wherein the recess, in a radial direction with respect to the geometric axis of rotation, is at least partially delimited by circular cylindrical shell surface sections with a radius of curvature which corresponds to half of a radial dimension of the control body. 8. The explosion protection valve according to claim 6, wherein the linear guide comprises a groove section which adjoins the recess in a radial direction and into which the control body is displaceable out of the recess of the rotary guide in the displacement direction of the linear guide. 9. The explosion protection valve according to claim 6, wherein, in the recess, at least one stop element is formed with a stop surface which delimits the rotational movement of the control body in the recess and allows displacement of the control body into the linear guide when said control body bears against the stop surface. 10. The explosion protection valve according to claim 9, wherein the stop surface forms a plain bearing for the control body. 11. The explosion protection valve according to claim 9, wherein, on the stop surface, a rolling bearing is arranged for the control body. 12. The explosion protection valve according to claim 1, wherein the locking device comprises a freewheel which permits mobility of the closing body, in the closing direction, and blocks the mobility in the opposite direction, at least when the closing body is in the closed position. 13. The explosion protection valve according to claim 12, wherein the freewheel is formed on a bearing shoe which, for the release of the freewheel, is arranged in the bearing and is displaceable in a release direction. 14. The explosion protection valve according to claim 13, wherein the bearing shoe comprises at least one of a part of the linear guide and a part of the rotary guide. 15. The explosion protection valve according to claim 1, wherein a monitoring device is provided by which a present position of the closing body is monitorable. 16. The explosion protection valve according to claim 15, wherein the monitoring device comprises a mechanical measurement sensor which is placeable into different measurement positions in a manner dependent on the position of the closing body, and the mechanical measurement sensor is placeable into a first measurement position, when the closing body is in the rest position, and into a second measurement position, when the closing body is in a position between the rest position and the closing position. 17. The explosion protection valve according to claim 16, wherein the mechanical measurement sensor comprises a pin which is deflectable on the bearing counter against a spring force. 18. The explosion protection valve according to claim 1, wherein the passage opening is in the form of an end-side opening of a pipe stub which is at least partially arranged in the valve housing, and an end surface, arranged in the valve housing, of the pipe stub forms the valve seat. 19. The explosion protection valve according to claim 1, wherein the closing body is in the form of a flap plate. 20. An explosion protection valve for explosion decoupling for shutting off a fluid flow comprising: a valve housing with a passage opening for the passage of the fluid flow, and a valve seat arranged at the passage opening,a closing body with a sealing surface, whereinthe closing body is mounted in movable fashion in the valve housing on a bearing and is movable at least between a rest position, an operating position and a closed position,the closing body is situated in the rest position in an absence of the fluid flow, the passage opening is opened by the closing body in the operating position, and the passage opening is closed by the closing body in the closed position, and the closing body, in the closed position, bears by way of the sealing surface against the valve seat,the closing body is movable into the operating position under an action of operating pressure, and is movable into the closed position under an action of a closing pressure that differs from the operating pressure,the closing body is arrestable in the closed position by a locking device,the bearing of the closing body allows movement of the closing body, in a closing direction, from the operating position into the closed position by way of a rotational movement and a linear movement,the closing body is mounted on the bearing by way of an axle body,the bearing comprises a rotary guide and a linear guide for a control body which is connected rigidly to the closing body,the rotary guide and the linear guide are designed and arranged relative to one another and allow introduction of the control body into the linear guide from the rotary guide only in a predefined rotational position,the rotary guide has a recess in which the control body, guided in at least one of a radial and an axial direction, is at least partially rotatable about a geometric axis of rotation defined by the rotary guide, andthe recess is, in a radial direction with respect to the geometric axis of rotation, at least partially delimited by a circular cylindrical shell surface sections with a radius of curvature which corresponds to half of a radial dimension of the control body. 21. An explosion protection valve for explosion decoupling for shutting off a fluid flow comprising: a valve housing with a passage opening for the passage of the fluid flow, and a valve seat arranged at the passage opening,a closing body with a sealing surface, wherein:the closing body is mounted in movable fashion in the valve housing on a bearing and is movable at least between a rest position, an operating position and a closed position, whereinthe closing body is situated in the rest position in an absence of the fluid flow, the passage opening is opened by the closing body in the operating position, and the passage opening is closed by the closing body in the closed position, and the closing body, in the closed position, bears by way of the sealing surface against the valve seat,the closing body is movable into the operating position under an action of operating pressure, and is movable into the closed position under an action of a closing pressure that differs from the operating pressure,the closing body is arrestable in the closed position by a locking device, whereinthe bearing of the closing body allows movement of the closing body in a closing direction from the operating position into the closed position by way of a rotational movement and a linear movement,the locking device comprises a freewheel which permits the mobility of the closing body, in the closing direction, and blocks the mobility in the opposite direction, at least when the closing body is in the closed position,the freewheel is formed on a bearing shoe which, for the release of the freewheel, is arranged in the bearing and is displaceable in a release direction, andthe bearing shoe comprises at least one of a part of the linear guide and a part of the rotary guide.