摘要:
The invention relates to a fusegate (1, 1A-1E) for a hydraulic construction, characterised in that said fusegate includes: a transverse wall (12) that is produced in a substantially sealed manner with a base (11), and means for limiting the impact of the gate on the structure (3, 18) of the hydraulic construction when said gate is retracted.
摘要:
The invention relates to a fusible shutter for a hydraulic construction such as a weir, a spillway on a dam or a safety embankment, that comprises a solid member (19) provided on the crest of the construction and maintained thereon by gravity in order to define a watertight or substantially watertight wall, installed on said hydraulic construction and capable of withdrawal so as to let the water flow freely when the level of the reservoir or river reaches a predetermined level, wherein a chamber (2) is formed at the base of the solid member (1) between the latter and the surface bearing same, and pressurising means are used for filling the chamber (2) with water in order to generate under the solid member an upward force when the water of the reservoir or the river reaches the predetermined level. According to the invention, the pressurising means include a water intake level with a supply structure (3) including two compartments (3a, 3b) defined by an inner vertical wall (4), wherein the two compartments (3a, 3b) communicate via at least one passage (5) in the upper portion of the supply structure (3), one of the compartments (3a) having one or more openings in the lower portion thereof for the intake of water from the reservoir or the river into the supply structure (3), while the other compartment (3b) communicates with the chamber (2) under the solid member (1). The invention can be used in a hydraulic construction such as a weir, a spillway on a dam or a safety embankment.
摘要:
The invention relates to a valve that changes between open and closed states and comprises a pivoting body (1) having a reservoir (14), at least one water inlet for filling the reservoir and at least one orifice (16) for emptying the reservoir, and a counterweight (13). The valve also comprises a first duct (31), separate from the body (1), connected to the filling orifice (17), and having a water intake (62) situated higher up than the filling orifice, whether the valve is open or closed.
摘要:
An automatic wicket (10) including a wall (12) mounted on a hydraulic structure (11) and movable between a raised position in which it holds back a body of water and a lowered position in which the water flows substantially unhindered thereover, as well as at least one elongate retaining element (13) for holding the wall (12) in the raised position against the horizontal pressure (P1) from the body of water (25). The retaining element (13) extends from the wall (12) to a reaction point to which it is connected by a linkage (15) that may be inactivated automatically when the water reaches a predetermined level. The wicket (10) further includes a solid element (16) movably mounted on the structure (11) and coupled to the body of water so that it is stable while the water is below the predetermined level (N) but becomes unstable and is moved when the water reaches said predetermined level (N). The linkage (15) is inactivated by the movement of the solid element.
摘要:
The invention relates to a fusible shutter for a hydraulic construction such as a weir, a spillway on a dam or a safety embankment, that comprises a solid member (19) provided on the crest of the construction and maintained thereon by gravity in order to define a watertight or substantially watertight wall, installed on said hydraulic construction and capable of withdrawal so as to let the water flow freely when the level of the reservoir or river reaches a predetermined level, wherein a chamber (2) is formed at the base of the solid member (1) between the latter and the surface bearing same, and pressurising means are used for filling the chamber (2) with water in order to generate under the solid member an upward force when the water of the reservoir or the river reaches the predetermined level. According to the invention, the pressurising means include a water intake level with a supply structure (3) including two compartments (3a, 3b) defined by an inner vertical wall (4), wherein the two compartments (3a, 3b) communicate via at least one passage (5) in the upper portion of the supply structure (3), one of the compartments (3a) having one or more openings in the lower portion thereof for the intake of water from the reservoir or the river into the supply structure (3), while the other compartment (3b) communicates with the chamber (2) under the solid member (1). The invention can be used in a hydraulic construction such as a weir, a spillway on a dam or a safety embankment.
摘要:
An automatic wicket (10) including a wall (12) mounted on a hydraulic structure (11) and movable between a raised position in which it holds back a body of water and a lowered position in which the water flows substantially unhindered thereover, as well as at least one elongate retaining element (13) for holding the wall (12) in the raised position against the horizontal pressure (P1) from the body of water (25). The retaining element (13) extends from the wall (12) to a reaction point to which it is connected by a linkage (15) that may be inactivated automatically when the water reaches a predetermined level. The wicket (10) further includes a solid element (16) movably mounted on the structure (11) and coupled to the body of water so that it is stable while the water is below the predetermined level (N) but becomes unstable and is moved when the water reaches said predetermined level (N). The linkage (15) is inactivated by the movement of the solid element.