384 results about "Sluice gate" patented technology

The sluice gate valve includes at least one binding reduction mechanism to reduce binding during actuation of the sluice gate. In one embodiment the mechanism includes a the guide elements and the tracks, the guide elements and the tracks being arranged such that a predetermined amount of rotational motion of the gate around the stem is permitted during actuation of the valve to reduce valve binding. In another embodiment the mechanism includes a stuffing box assembly including a stuffing box, a bushing, and a collar, where a convex curved surface of the collar slides on a concave curved surface of the bushing such that a predetermined amount of pivoting of the stem up to a predetermined cone angle is allowed. In a preferred embodiment the sluice gate valve includes both mechanisms.

An integrated power system combining tidal power generation and ocean current power generation comprises: constructing barrages across the sea to make up a lake; installing turbine structures of a tidal power plant and sluice structures of a tidal power dam for generating electricity by using the potential energy difference between seawaters caused by tides and ebbs; forming an ocean current power park in a lake side by installing a plurality of ocean current generators, for generating electricity by using the flow of the seawater discharged through turbine generators, in a rear lake side of the turbine structures of the tidal power plant; and forming an ocean current power park in a sea side by installing ocean current generators, for generating electricity by using the seawater with the fast speed discharged into the sea through sluice gates, in a rear sea side of the sluice structures of the tidal power dam.

The invention relates to a waterproof gate with good use effect, which comprises a waterproof gate plate and a waterproof gate frame; the waterproof gate plate is arranged in the waterproof gate frame and connected with the waterproof gate frame in a relative rotation way; a waterproof gate stiffened plate is arranged behind the waterproof gate plate; the side wall in the waterproof gate frame is provided with a closed gate locking notch; a gate locking oil cylinder is fixedly arranged behind the waterproof gate plate; the outer end of the gate locking oil cylinder is provided with a tight gate lock pin; the tight gate lock pin is corresponding to the closed gate locking notch; the waterproof gate frame is provided with a gate switch oil cylinder; the other end of the gate switch oil cylinder is arranged on the waterproof gate plate.

A fixing device includes an encircling element having left and right lateral sides and an intermediate portion that is formed with a notch and that is bent to form two limiting apartments at two sides of the notch, each limiting apartment having left and right walls extending integrally and transversely from a longitudinal axis of the encircling element and a middle wall interconnecting the walls that define an opening accessible only from a direction that is the same direction, each of the left and right lateral sides is formed with a retainer stub; a sluice gate having two notches disposed on the retainer stubs for denying access into the apartments; and a locking member extending through a through hole in the sluice gate and the notch in the encircling element for preventing untimely disengagement of the sluice gate from the encircling element.

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 a potential energy converting device of a novel hydraulic piston pump. Most conventional piston pumps are driven by motors or diesel engines and have deficiencies of needing to use electricity, diesel, and the like. Therefore, the potential energy converting device comprises a piston pump mechanism, wherein the piston pump mechanism comprises a cylinder body and a piston; a fluid material inlet pipe and a fluid material outlet pipe are arranged on the cylinder body; and check valves are arranged on both the fluid material inlet pipe and the fluid material outlet pipe. The potential energy converting device is characterized in that the potential energy converting device further comprises a gravity water container and a resetting device, wherein the gravity water container is connected with the piston through a pull rope or/and a connecting rod; a water filling pipe and a valve are arranged above the gravity water container; a water outlet and a sluice gate are arranged on the gravity water container; and a sluice gate triggering device is arranged on the gravity water container in a matched manner. The potential energy converting device of the novel hydraulic piston pump, which is disclosed by the invention, has the advantages of reasonable design and simple and practical structure, and utilizes the gravity or buoyancy force of water with a certain water level difference to do work to increase the pressure intensity of fluid, thereby achieving the aims of water lifting, refrigeration, heating, power generation, and the like and serving the humankind.

The invention discloses an origin-destination (OD) estimation method for the traffic demand of a port roadway based on freight processes. The method is based on an activity theory, the entire freight logistics procedure is taken as a research unit, the main traffic generation and attraction point of a harbor district is taken as a starting point, and the typical freight logistics procedure of cargo vehicles in the harbor district is taken as an analysis object. Under the precondition of obtaining these basic data which are the basic parameters of the storage yards of the harbor district, the flow rate of each egress and ingress sluice gate in the harbor district and the collecting and distributing proportion of a dock roadway, the cargo quantity of each storage yard and the cargo collecting and distributing quantity of the dock roadway are estimated, the attraction intensity of each sluice gate, each storage yard and each dock in the harbor district is analyzed, the selective probability of different travelling routes of different freight process modes is also calculated, the generation and attraction quantity of each OD pair of the harbor district is estimated so as to obtain an OD matrix for the traffic generation and attraction of a port roadway, finally a macroscopic model of the harbor district is constructed by utilizing a VISUM, the OD of the harbor district is inversed according to the measured flow rate, and the relative error of the OD matrix and the OD is compared so as to verify the reliability of model estimation.

A fixable-seal sluice gate has a valve vise (18, 19, 25, 26, 31, 32) that forces a sluice-gate valve uniformly and tightly in sealing-surface contact with a domed seal ring (4) that is fixable conveniently and removably intermediate a sluice-gate plate (3) and a sluice-gate wall (1) of a sluice-gate flange that encompasses a valve side of a sluice-gate aperture (2). A plate locator on the valve vice sets the sluice-gate plate in predetermined sealing-contact position for select structure of the fixable-seal sluice gate. The domed seal ring is a plastic material such as Hypalon(R) having predetermined toughness to resist particle embedment in combination with having predetermined softness for select uses and objectives. A dome flange (5, 6) on one or both sides of a base of the domed seal ring is bracketed removably to optionally the sluice-gate wall or the sluice-gate plate for rigid, reliable, long-enduring and yet quick and convenient attachment and detachment of the domed seal ring.

The invention relates to a large span sluice gate dual-hanging point hoist machine, in particular to a large span sluice gate dual-hanging point hoist machine used for the hydraulic engineering, and comprises a motor, a speed reducer which is connected with the motor by a brake, a reel, a fixed pulley, a movable pulley which is connected with the sluice gate hanging point, a central small gear which is rigidly connected with the low speed driving output axis of the speed reducer, and a big gear which is meshed with the central small gear; wherein, the big gear and the reel which is winded with the steel rope controlling the lifting and the descending of the sluice gate by the fixed pulley and the movable pulley form the integrated structure. The invention is only provided with a driving mechanism, does not need a long shaft drive and solves the problem of the rigidity deficiency of a middle drive shaft in the conventional large span hoist machine.

The invention discloses an automatic cleaning machine for sluice gate guide rails of a frame-type PX pump station. The automatic cleaning machine comprises a frame, longitudinal cleaning systems, a transverse cleaning system, and a control system, wherein the frame is embedded into the sluice gate guide rails and capable of sliding up and down along steel angles in the sluice gate guide rails; the longitudinal cleaning systems are disposed at two sides of the frame respectively, and used for cleaning the guide rails on the two sides and a vertical surface of a rectangular sealing frame on a wall; the transverse cleaning system is assembled below the frame, and used for cleaning a lintel and a bottom sill; and the control system is used to control working of the longitudinal cleaning systems and the transverse cleaning system. The automatic cleaning machine for sluice gate guide rails of a frame-type PX pump station has the advantages as follows: the machine can be installed simply and conveniently in the same way as the sluice gate; the sluice gate can be allowed to enter the water smoothly for sealing; the key technical problems of inspection of the guide rails and the sealing frame are effectively solved; and the effect of longitudinal comprehensive cleaning by entering the water once is achieved. Furthermore, long-distance cross sliding is realized simply and effectively. Pipeline twining is avoided. Separation of the machine from the guide rails is avoided.

The invention provides a quick soil pressure sensor replacing device which comprises a sleeve, a sensor installation seat, a sluice gate installation seat, a sluice gate, a closing oil cylinder and atelescopic oil cylinder, wherein the inside of the sleeve is hollow, the sensor installation seat shares the same central axis with the sleeve and is detachably arranged in an inner cavity of the sleeve, the sluice gate installation seat is arranged on the sleeve in the radial direction of the sleeve, the sluice gate is arranged on the sluice gate installation seat and can seal the inner cavity ofthe sleeve in the radial direction, the closing oil cylinder is used for controlling the sluice gate to be opened and closed, and the telescopic oil cylinder is connected with the sensor installationseat and can control the sensor installation seat to move in the axial direction of the sleeve. The quick soil pressure sensor replacing device disclosed by the invention has the advantages of high automation degree, simple structure, convenience in control, ability in quickly and safely replacing a soil pressure sensor under the situation that a soil warehouse is under pressure, good sealing effect, high safety and ability in improving soil pressure sensor replacing efficiency.

The invention discloses a dam-breaking circulating water tank, which comprises an experimental water tank, a dam-breaking gate, a water storage tank, a drainage gate, a water pump tank, a circulating water pump, a water inlet pipe, an upstream water injection pipe, a downstream water injection pipe, a drain pipe and an aqueduct; The gate is set in the experimental water tank, perpendicular to the water flow direction in the experimental water tank; the water storage tank is located directly below the experimental water tank and connected to the water outlet of the experimental water tank; the drainage gate is located in the experimental water tank, adjacent to the water outlet of the experimental water tank; the water pump tank is located in the water storage tank The side of the water tank is also connected to the water outlet of the water storage tank, and its absolute elevation is smaller than that of the water storage tank; the water inlet pipe, the upstream water injection pipe, the downstream water injection pipe and the water guide pipe are connected through a four-way connection, and the circulating water pump is connected to the water guide pipe. The device of the invention can efficiently and conveniently complete repeated dam break experiments, and can also be used for wave-making experiments and uniform water circulation experiments, and the slope adjustment function can cooperate with various hydrodynamic experiments, which greatly improves the scope of application.

The invention relates to a containment structure of a floating nuclear power plant. The containment structure includes a containment body, and is characterized in that the containment body is internally equipped with a loop area and a refueling area, the loop area includes a main coolant system compartment and a loop subsystem compartment that area interconnected, a steam generator and a voltage stabilizer of the main coolant system are arranged on one side close to the containment front wall, a loop subsystem is disposed in the compartments on both sides of a suppression water tank, the refueling area includes a spent fuel storage pool, a suppression pool and a reactor chamber, the suppression pool is located between the spent fuel storage pool and the reactor chamber, the suppression pool, sluice gate equipped partition walls are disposed between the suppression pool and the spent fuel storage pool and reactor chamber respectively, discharge pipelines are laid vertically in the wallbetween the loop subsystem compartment and the suppression pool, and the upper ends of lower ends of the discharge pipelines are respectively connected to the loop subsystem compartment and the suppression pool. The containment structure of a floating nuclear power plant provided by the invention has the advantages of compact structure, reasonable layout, good suppression effect, simplification ofrefueling process and improvement of refueling safety.

The invention discloses an on-line state monitoring control method and a monitoring system for a hydropower station sluice gate. The method comprises the following steps: a usage and operating state of the sluice gate is monitored in real time through a sluice gate control cabinet, a sluice gate motor frequency converter and a sensor arranged on the sluice gate; monitored data is transmitted to adata acquisition instrument via the sensor; the controller is used for reading and recording data signals from the data acquisition instrument, the sluice gate control cabinet and the sluice gate motor frequency converter respectively, performing spectrum analysis on the data signals, extracting signal characteristic values of the data signals of all test points from spectrum analysis results, establishing an early warning mathematical model, achieving real-time monitoring and control of the sluice gate, and giving early warnings upon occurrence of exceptions of the sluice gate. The on-line state monitoring control method and the monitoring system are characterized by ability to reduce the maintenance cost and improve troubleshooting speed.

The invention relates to an arc-shaped terrace beam sluice gate with a layered water intake function and a working method thereof. The sluice gate comprises the arc-shaped terrace beam sluice gate, anarc-shaped sluice gate slot, a fixed pulley, a hydraulic hoist, a rotating shaft, a hoist rod and an electric motor; the arc-shaped terrace beam sluice gate comprises a first arc-shaped sub sluice gate, a second arc-shaped sub sluice gate and a third arc-shaped sub sluice gate; and the third arc-shaped sub sluice gate is provided with a third cavity which can accommodate the insertion of the second arc-shaped sub sluice gate, the second arc-shaped sub sluice gate is provided with a second cavity which can accommodate the insertion of the first arc-shaped sub sluice gate, the first arc-shapedsub sluice gate is inserted into the second cavity of the second arc-shaped sub sluice gate, and the second arc-shaped sub sluice gate is inserted into the third cavity of the third arc-shaped sub sluice gate. According to the arc-shaped terrace beam sluice gate with the layered water intake function, the overall movement of the terrace beam sluice gate is controlled through the hydraulic hoist, lifting of the first arc-shaped sub sluice gate is controlled through the electric motor, and layered water intake and surface water intake of the arc-shaped terrace beam sluice gate are realized. Thehydraulic hoist is used for controlling whole movement of the terrace beam sluice gate to the height of flood scouring and silting, and a function of flood scouring and silting of the terrace beam sluice gate is realized.

The invention discloses a nuclear power spent fuel pool sluice gate, which comprises a gate frame and a gate leaf, wherein the gate leaf is fixedly arranged in the gate frame via a set of hinge devices; the gate leaf is provided with a set of fastening devices; the gate leaf is provided with a gate leaf driving device; the junction of the gate frame and the gate leaf is provided with a layer of sealing element; and a set of reinforcing ribs is arranged in the gate leaf. The nuclear power spent fuel pool sluice gate disclosed by the invention has the advantages of flexibility in opening and closing, shock and pressure resistance and low leakage rate.

The invention provides an undershot sluice gate (17) to control flow of liquid through an open channel (10). The gate (17) includes a gate leaf (18) adapted to be raised and lowered by a control means (22) to allow flow of liquid along open channel (10). Gate leaf (18) has at least a pair of opposing liquid level sensors (44, 46) on, or in, gate leaf (18) to provide measurement of liquid level upstream and downstream of gate leaf (18). The sensors (44, 46) are located at a predetermined distance from the lowermost edge of gate leaf (18) to allow said measurements without disturbance from the fluid flow profile resulting from movement of liquid beneath the lowermost edge of gate leaf (18).

The invention discloses an improved water conservancy system sluice gate structure. The improved water conservancy system sluice gate structure comprises a gate base and a gate body matched with the gate base in an inserted connection manner; the gate body is connected with a first drive motor; outer slide ways are arranged on the two sides of the gate base; the two sides of each outer slide way are provided with outwards-inclined limiting faces; arc-shaped grooves are formed below the limiting faces; a plane part is arranged between the arc-shaped grooves in the two sides; inner slide ways are connected to the inner sides of the outer slide ways in a sliding and sleeved manner; the inner slide ways are connected with a second driving motor; a strip-shaped through hole is formed in the middle of each inner slide way; the bottoms of the inner slide ways are provided with first cleaning plates attached to the outer slide ways; a plurality of elastic positioning pieces are arranged on the two sides of each inner slide way; the gate body is connected in the inner slide ways in a sliding and sleeved manner and is in interference fit with the elastic positioning pieces; and a rubber sealing pad is arranged in the middle of the gate body. The improved water conservancy system sluice gate structure can overcome the defects in the prior art, silt of the sealed portion can be effectively cleared away, and the stability of a gate is improved.