507results about "Dry-docks" patented technology

An in situ soil remediation system may be used to remove or reduce levels of mercury contamination within soil. The soil remediation system may also remove or reduce levels of other contaminants within the soil. Mercury may be vaporized within the soil by a heating system. The vaporized mercury may be removed from the soil by a vacuum system. The vaporized mercury may pass through heated risers that elevate the vaporized mercury. After the vaporized mercury passes from the heated risers, the vaporized mercury may be allowed to cool, condense, and flow downward to a treatment facility. Removing mercury from the soil as a vapor may provide an economical, safe, and efficient way to remediate mercury contaminated soil.

The invention discloses a fish pass facility and method with a fish ladder and a navigation lock combined, and relates to a facility and method for migratory fishes to move upstream through a barrage building. The fish pass facility comprises a fish luring ladder with the inlet end arranged in the downstream river channel of a dam, wherein the fish luring ladder is a slope type channel which is internally provided with a low weir, the slope type channel inclines in the upstream direction and extends in the direction of the lock chamber of the navigation lock as a whole, the outlet end of the fish luring ladder is connected with a fish collecting pond which is connected with a transfer pond through a connecting channel, branch water diversion pipes are arranged in the transfer pond, the transfer pond is partitioned by a transverse partition wall into a main transfer pond and an auxiliary transfer pond, a lower gate is arranged in the transverse partition wall, a water flowing channel is formed in the side wall of the lock chamber of the navigation lock and is communicated with the transfer pond and the lock chamber of the navigation lock, and an upper gate is installed on the water flowing channel. According to the fish pass facility and method with the fish ladder and the navigation lock combined, the fish ladder and the navigation lock are combined, the upper end of the fish ladder is arranged in the lock chamber of the navigation lock, the influences caused by the upstream and downstream water head are overcome through the navigation lock, and therefore migratory fish shoals can pass through the dam; the length of the project of the fish ladder can be obviously reduced, and therefore input cost is reduced.

The invention discloses a device for realizing fish passing by utilizing a ship lock. The device comprises multiple water flow generating devices arranged in the upstream of the ship lock, on the side walls of a lock chamber and in the downstream of the ship lock, water flow generating devices are arranged on the downstream side of a downstream lock gate of the ship lock, underwater fish collecting lamps are arranged on two side walls in the lock chamber, underwater fish driving lamps are arranged one side, close to the lock chamber, of an upstream lock gate, and sound wave fish driving devices are arranged at the bottom of the lock chamber. An existing ship lock building is utilized and additional devices are arranged to achieve effect enabling fishes to pass a dam, fish passing effect is better than that of conventional fishways, and the device and the method are suitable for different fishes; the ship lock and a fishway are integrated into a whole, so that working efficiency is improved, operating cost is lowered, and the device and the method are suitable for popularization.

The invention discloses a fish-passing type lock and a fish-passing method. The fish-passing type lock comprises a fish collecting and water replenishing gallery system with the inlet end located in an upstream approach channel and the outlet end located in a downstream approach channel, a fish luring and water replenishing gallery system with the inlet end located in the upstream approach channel and the outlet end located in a lock chamber, an upper lock head water replenishing gallery system with the inlet end located in the upstream approach channel and the outlet end located in an upper lock head curtain wall, and a fish blocking system comprising a fish blocking electric grid and a fish blocking net. On a lock of a navigable river built flood retarding project and a lock of a new flood retarding project, the fish-passing type lock can be used for greatly saving the project investment in building fish-passing facilities and guaranteeing the ecological balance of rivers.

The invention relates to a water adding system of a ship lock and a construction method thereof. A technical problem to be solved is to provide a water adding system of the ship lock and a construction method thereof. The water adding system has the advantages of high energy dissipation efficiency, full utilization of lock head space, even water level surge height, favourable current joining condition and simple structure, can effectively solve energy and flow state distribution of high-speed current, and can expand new research field for design and type selection of moderate lift lock water delivery system. The technical scheme solving the problem is as follows: the water adding system of the ship lock comprises a lock head baseplate, lock head side blocks, a lock chamber baseplate and a lock chamber. The water adding system is characterized in that a water blocking wall and a lock head screen wall are connected between the lock head side blocks on two sides; a group of tongue-flap shape water inlets with vertical fall are arranged between the water blocking wall and the lock head screen wall; an annular water delivery corridor communicating the water inlet with the lock chamber is arranged in the lock head side block, and an energy consumption chamber is arranged between the outlet end and the water inlet of the annular water delivery corridor. The invention is mainly suitable for water conservancy and hydropower engineering and water transport traffic engineering.

This invention is an automatic ship lock. The lower lock gate and the lip wall of the lock chamber floor forms a water pressure reflecting room. To the room installed an infra sensor tee piston. To the bottom of the room is the end drop channel of the main lock, followed by down sluicing channel and the lower lock gate, then the horizontal up sluice channel. To the end of the room is the drop channel followed by a vertical channel then to the horizontal down sluice channel to form a two layer recycle sluice. The upper and the bottom gates form a single or multi lock chamber. In the water pressure reflecting room, there is a power switch and an infra sensor switch to control the tee piston and water level separately. With the use of water pressure balance theory to eliminate the huge water head pressure and the shipí»s drive power makes it possible for the ship to pass the ship lock at the same speed. The ship lock is capable of automatically control water make-up, leakage and flood protection.

A two-lane ship lock having center-wall tanks that hold water drained from one lane for use in filling the second lane as the unit is operated. The method reduces transit water-use where a lock connects a waterway to a sea with large daily tides by capturing seawater in a lagoon at high tide for use at start of chamber refilling during lower tides.

The invention discloses a system and a method for controlling constant-flow ship lock based on liquid level differences. The system comprises an upstream / lock chamber / downstream liquid level detection device of the ship lock, an upper / lower lock head of the ship lock, an upper / lower lock head opening instrument of the ship lock, an upper / lower lock head filling / discharging water pump of the ship lock, a lower computer central controller PLC, a lock head opening-closing machine control cabinet of the ship lock and an upper computer monitoring PC, wherein liquid level signals output by the liquid level detection device of a laser distance measuring instrument of a double two out of two structure are processed by using a double two out of two algorithm. By virtue of the laser distance measuring instrument, the defect of a water level meter based on a pressure mechanism can be eliminated; by virtue of the double two out of two technology, the accuracy and the reliability of liquid level detection are improved; a multi-mode subsection control algorithm is used for controlling the constant-flow ship lock based on the liquid level differences under the assistance of the upper / lower lock head filling / discharging water pump of the ship lock; different control strategies are designed according to different liquid level differences between the water level of the lock chamber and the upstream / downstream water levels of the ship lock; by virtue of the multi-mode subsection control, the safety and the efficiency indexes of the ship lock are improved.

A system for transferring a vessel between a first body of water having a first water level and a second body of water having a second water level includes a barrier separating the first body of water from the second body of water. The system also includes a transfer structure adjacent the barrier for receiving the vessel to be transferred between the first and second bodies of water, and a transfer apparatus adjacent the barrier for moving the transfer structure between a first position and a second position. The upper portion of the barrier includes a barrier door that is movable between an opened position when the transfer structure is in the second position to allow the vessel to move into and out of the transfer structure, and a closed position when the transfer structure is in the first position.

There is provided with a complex ocean power system combining ocean current power generation for generating electricity by forming a plurality of ocean current generators in front and rear of sluice structures of tidal power dams and sluice power generation for generating electricity by forming a plurality of ocean current generators in sluice conduits of the sluice structures, comprising: constructing barrages, which cross over the sea, to make up a lake; installing sluice structures of tidal power dams between the barrages 10 to generate electricity by changing a potential energy difference between seawaters caused by tides and ebbs to kinetic energy; installing ocean current generators in front and rear of the sluice structures and in the sluice conduits of the sluice structures to generate electricity by rotating turbine blades using the flow of the incoming seawater from a sea side into a lake side during flood tide and the flow of the seawater discharged from the lake side into the sea side during ebb tide; and installing sluice gates in the sluice structures 102, 210 to close and open the sluice conduits during flood tide and ebb tide.

The invention relates to an underground shiplock arranged in a mountain body, which comprises an upstream approach channel (2) and a downstream approach channel (4) for connecting a shiplock main body section (3), wherein the shiplock main body section (3) comprises an upper lock head (20), a lock chamber (22) and a lower lock head (21), an upstream water-blocking door slot (6) is arranged at theupper lock head (20) of the shiplock, an upstream working door (7) is arranged behind the upstream water-blocking door slot (6), a downstream working door (8) is arranged at the lower lock head (21) of the shiplock, a downstream access door slot (15) is arranged behind the downstream working door (8), and the shiplock adopts a reinforced concrete lining structure. When the shiplock is built on a water conservancy and hydropower junction in a high mountain and valley area, hole excavation is used for replacing open excavation, thereby greatly saving engineering quantity and cost of the shiplock; by matching with construction of a dam, the navigation conditions of an upstream river course and a downstream river course are improved, and a bright future is provided for enabling the river courses to expand the navigable mileage upstream and developing water transportation traffic in mountain areas.

The present invention discloses an auxiliary equipment for member mounting construction in hydraulic engineering and its use method. The described auxiliary equipment is placed on the water surface around the member body or under water surface or can be placed under water surface in interior cavity body of said member body. It includes more than one floatation aiding mechanism and positioning connecting component connected between said floatation aiding mechanism and member body. The described floatation aiding mechanism includes air bag, balloon, glass water ladle, inflatable tyre, tyre, sealed bin, wooden boat body, inflatable rubber dirigible and wood and plastic body or steel sealed tank. Besides, said invention also provides the application method of said auxiliary equipment.

The invention discloses a double-line multistage one-way passing water-saving ship lock and aims to solve the technical problem that water should be saved for all double-line multistage one-way passing ship locks with different stages. The technical scheme is that different-line same-stage lock chambers of the double-line multistage ship lock communicate with one another; the water level of a downgoing ship lock chamber rises from a low water level to a medium water level, and no ship exists in the lock chamber; the water level of the lock chamber rises from the medium water level to a high water level, and no ship exists in the lock chamber; the water level of an upgoing ship lock chamber falls from the high water level to the medium water level and no ship exists in the lock chamber; and the water level of the lock chamber falls from the medium water level to the low water level and no ship exists in the lock chamber.

A system for transferring a vessel between a first body of water having a first water level and a second body of water having a second water level includes a barrier separating the first body of water from the second body of water. The system also includes a transfer structure adjacent the barrier for receiving the vessel to be transferred between the first and second bodies of water, and a transfer apparatus adjacent the barrier for moving the transfer structure between a first position and a second position. The upper portion of the barrier includes a barrier door that is movable between an opened position when the transfer structure is in the second position to allow the vessel to move into and out of the transfer structure, and a closed position when the transfer structure is in the first position.

The invention relates to a ship lifting machine operation controlling method and device, especially a hydraulic floating type ship lifting machine operation docking controlling method and device, The invention is characterized in that: an ancillary filling valve and an ancillary emptying valve are respectively connected in parallel with the main filling valve and the main emptying valve of the hydraulic floating type ship lifting machine water carriage system pipeline; the main filling valve and the main emptying valve are larger than the corresponding ancillary filling valve and ancillary emptying valve; regulating the opening of the small sized ancillary filling / emptying valve can control the ship lift chamber to enter and exit from the chamber pool; the big sized main filling / emptying valve is only opened before the ship lift chamber enters or after the ship lift chamber exits completely to increase the running speed of the ship lift chamber in air.

A ship lock utilizes a hydraulic turbine and / or pump-turbine to regulate the discharge flow rates through the ship lock to an approximate constant value during the majority of the water transfer cycle resulting in a diminishing of total energy of head losses and to enable the recuperation of the unused hydraulic energy for generation as electricity. The difference in water levels on opposite sides of the ship lock constitutes potential hydraulic energy. By regulating the discharge, the total head losses over a given period of time diminish very significantly, thus giving an opportunity for optimization of hydraulic energy recuperation.

The invention provides a three-line multistage one-way water-saving ship lock. The three-line multistage one-way water-saving ship lock aims to achieve the water saving effect for all the three-line multistate one-way ship locks with different stage numbers. According to the technical scheme, lock chambers at the same stage and on different lines of the three-line multistage ship lock communicate with one another, and a ship in each lock chamber of the ship lock is only nine steps away from a ship entering the lock chamber on the same line next time. While the water level in each lock chamber rises from the low water level to the 1 / 3 water level, no ship is allowed to exist in the lock chamber. While the water level in each lock chamber rises from the 1 / 3 water level to the 2 / 3 water level, no ship is allowed to exist in the lock chamber. While the water level in each lock chamber rises from the 2 / 3 water level to the high water level, no ship is allowed to exist in the lock chamber.

A system for lifting ships from one waterway to another waterway. A convex basin is constructed between the waterways and slidably receives a pair of inter-connected chambers movable transverse to the direction of the waterway.

The invention relates to a ship lock concentration and dispersion delivery system without a calm section, belonging to the technical field of ship lock water-carriage system hydraulics. The ship lock concentration and dispersion delivery system comprises a lock chamber formed by an upper course strobe and a lower course strobe, wherein the upper course of the upper course strobe is provided with a water inlet which spans a ship lock, and both ends of the water inlet respectively extend into the lock chamber through water-carriage passages controlled by a water-carriage valve; the lock chamber is provided with at least two bottom water-outflow energy dissipation sections which extend longitudinally, and the water-carriage passages inside the lock chamber are respectively communicated with the adjacent bottom water-outflow energy dissipation sections through lateral branching holes which are distributed at intervals. The invention has the obvious advantages of sufficient current energy dissipation, engineering investment saving, increased starting speed of a valve, shortened water-carriage time, increased lockage number, small construction quantities, convenient construction maintenance, and the like.

A method of assembling a lock and dam system is disclosed to minimize the rate of structural fatigue associated with closing of the lock and dam system. The lock and dam system includes one or more gates that may include a plurality of girders, plates and associated support or reinforcing members. The gate has a miter end and a quoin end. On the miter end a miter block, and thrust plate transfer impact forces associated with closing of the gate from the point of impact to the remainder of the gate. The thrust plate is preferably a substantially uniformly thick member that is secured vertically to the gate through a slot cut or formed in the end of the horizontal plate on the miter and quoin end. Preferably, the thrust plate is secured using a fillet weld.

The invention relates to a combined ventilation method for relieving cavitation of a high-lift ship lock valve, in particular to a combined ventilation method for relieving cavitation of a large water-level amplitude high-lift ship lock valve; by adopting a simple uniform cross section flat top type valve section gallery body type and shallow valve section gallery laying depth, in the design, the gallery is ensured to have a certain negative pressure when the high-level head of the ship lock is operated, the natural ventilation of a door head is used as a basic measure, and the natural ventilation of the top of the gallery is used as a supplement measure for the natural ventilation of the door head, by utilizing combined ventilation of the door head and the top of the gallery, cavitation is fully inhibited; when water level combination is changed, a water head is reduced, and negative pressure of the top of the gallery passes away and the natural ventilation can not be carried out, the natural ventilation of the door head is used for solving the problem of bottom flange cavitation of the valve. The method can well solve the problem of cavitation of the large water-level amplitude high-lift ship lock valve, and the construction difficulty of the valve section gallery is reduced, so as to be convenient for overhauling of the valve section gallery, save construction investment and reduce operation cost.

The invention discloses a fish collecting and fish luring system and a fish collecting and fish luring method of a fish-passing type lock. The fish collecting and fish luring system comprises a drainage cross gallery positioned inside a downstream approach channel, a fish collecting and water replenishing gallery system with the inlet end in an upstream approach channel and the outlet end in the downstream approach channel, and a fish luring and water replenishing gallery system with the inlet end in the upstream approach channel and the outlet end in a lock chamber. On a lock of a navigable river built flood retarding project and a lock of a new flood retarding project, the fish collecting and fish luring system of the fish-passing type lock can be used for gathering migrating fishes on the downstream side in the lock.

The invention provides a bottom plate transportation type bridge passing ship lock. The ship lock is arranged in a river channel under a bridge and comprises an upstream lock, a midstream lock, a downstream lock, an upstream lock chamber, a downstream lock chamber and a water pumping device, wherein conveying rails are arranged at the tops of edge walls of the two lock chambers respectively; each conveying rail is internally provided with two hoists; a transportation rolling wheel is arranged at the bottom of each hoist; the hoists can move in the corresponding conveying rails through the corresponding transportation rolling wheels; a lifting rope which vertically falls into water is arranged on the side face, facing the corresponding lock chamber, of each hoist; and the lifting ropes are fixedly connected with a transportation bottom plate. By virtue of the bottom plate transportation type bridge passing ship lock, the water amount needing to be pumped in a ship navigation process is reduced, the electric quantity consumed by pumping water is reduced and the time spent on pumping the water is shortened; and the ship navigation efficiency is improved and the navigation time is shortened.

An improved watertight gate for use in a port or canal is described. The watertight gate generally comprising two gate leaves and associated with each gate leaf is a foldable support structure and a gate position controller. The gate position controller interacts with the foldable support structure so as to move the associated gate leaf between an open and a closed position. By employing the gate position controller and the foldable support structure to control the gates the efficiency of the watertight seal provided by the gate is independent of water pressure produced by the surrounding bodies of water. Adjustable mounts attach the foldable support structures. These adjustable mounts provide for adjustment of the alignment of the watertight gate so minimizing the problems of installation alignment and reduced efficiency through wear and tear.

The invention relates to a method for relieving the body-type cavitation of a suddenly-enlarged gallery for ship locks and particularly relates to a method for relieving the sill-lifting cavitation of a suddenly-enlarged gallery for high-lift ship locks. The method is characterized in that a position to which a flow separation occurs on a sill-lifting curved surface is provided with a sill-lifting aeration device, the sill-lifting aeration device is an aerating groove or is formed by connecting an aerating sill with an aerating groove, the inside of the aerating groove is provided with a ventilating pipe communicated with the top of a lock, the top of the ventilating pipe is also connected to an air compressor by connecting a branch pipe, and the branch pipe is provided with a valve; and when the negative pressure exerted on the rear low-pressure area of the sill-lifting aeration device is large enough to automatically suck air into water, the ventilating pipe is communicated with the atmosphere so as to realize natural ventilation, otherwise, air is added into the sill-lifting aeration device by using the air compressor so as to achieve the purpose of relieving the downstream sill-lifting and gate-slot cavitation of the sill-lifting aeration device.

The invention relates to a hydraulic ship-lifting system, wherein a sluice chamber is internally provided with a floating ship cabin; a sluice chamber water-filling and discharging system comprises an upstream water supplying tank, below which a water-filling valve chamber is connected; the water-filling valve chamber is internally provided with a first ball valve set and a first flat valve set; the water-filling valve chamber is communicated with a water-filling passage through the first ball valve set and the first flat valve set; the water-filling passage is communicated with the sluice chamber; the other side of the sluice chamber is provided with a discharging passage; the discharging passage is communicated with a tailrace tank through a second ball valve set and a second flat valve set in a drain valve chamber; the floating ship cabin comprises floating barrels which are arranged at two side walls of the sluice chamber by using a guide device; bottoms of the two floating barrels are connected with a current-stabilizing grid plate; and each floating barrel is internally provided with a power device. According to the hydraulic ship-lifting system, the water level lifting speed of the sluice chamber is improved, so that the water level lifting speed of the sluice chamber is controllable, constant and steady; and the speed can be reduced from the maximum to zero, so that the running time is greatly shortened.

A canal lock system for recirculating water between a reservoir and canal lock that uses air pressure to change the water level in the canal lock. The canal lock system comprises at least one canal lock, at least one reservoir for holding recirculated water connected to the bottom of the at least one canal lock, and at least one air pump connected to the at least one reservoir for pressurizing the at least one reservoir with air to force the water into the at least one lock to thereby change a first water level in the at least one canal lock to a higher second water level, wherein the at least one reservoir maintains a constant volume and wherein the at least one reservoir is depressurized to thereby change the second water level to a lower third water level.

The invention discloses a system for program control circulating jet flow and fish inducing by program control circulating light change for a ship lock or a ship lifting machine. The system comprises a downstream approach channel side wall inner wall, a ship lock chamber or ship lifting machine ship holding box side wall inner side wall, a program control circulating jet flow fish inducing device arranged on the side wall inner wall in a certain range of an upstream approach channel and a program control circulating light change fish inducing light, and consists of a main pipeline, a boost pump and a program control electromagnetic valve jet flow pipe (LED light arranged at the outer periphery of a pipe port, program control circulating light control). Based on a traditional navigation building, the system is newly built or transformed to achieve the effect of fishes passing through a dam from downstream to upstream in normal use process of navigation facilities, protects the river fish ecology, reduces the fish passing water consumption and the energy consumption, and realizes the purposes of reducing the engineering investment, reducing the operation cost and giving consideration to engineering and ecological and environmental benefits.