264 results about "Floodgate" patented technology

A floodgate is disclosed. The floodgate comprises a panel configured to be movable between an opened position and a closed position wherein in the opened position, the panel forms a barrier against flood water; and at least one gas strut configured to move the panel from the closed position to the opened position.

The invention discloses an urban river surge flood control and drainage dynamic forecasting control method. The method comprises the following steps that firstly, real-time rainfall data in a drainage basin is collected; secondly, the real-time rainfall data is transmitted and received through GPRS communication; thirdly, an underlying surface type is determined according to a satellite image, and CN values of all areas are obtained through checking according to the underlying surface type and a CN experience value table; fourthly, the volume of a flood is calculated based on a drainage basin rainfall-runoff model; fifthly, a water surface profile and the drainage volume of a pump station are calculated and forecast based on a river surge one-dimensional water flow mathematic model for coupling water gate overflowing and drainage of the pump station; sixthly, the volume of river surge flood propagation and drainage hydrological parameters are forecast in real time. By means of the urban river surge flood control and drainage dynamic forecasting control method and system, the river surge flood control and drainage situation can be effectively, accurately and dynamically forecast in real time, and urban river surge management and design can be easier.

Disclosed is a remote monitor and control system for draining floodgate of a seawall in that movie and audio signals of a draining floodgate are transmitted to a remote place through a communication network and each device can be remotely controlled in the remote place through two-way communications. The remote monitor and control system for draining floodgate of a seawall according to the present invention includes a spot control means, a control means, and a remote control means.

This invention is a switch use to open or close the theft proof floodgate. It features are: The support position of transmission, drive screw rod is in the holes on the bottom of the transmission box and in the hole of the box cover. The support position of drive axis is in the horizontal hole on the side of the box cover. In the box the bevel gear on the screw rod in gear to the bevel gear on the drive axis. On the drive axis there are two different axes, they have different diameter and inverse screw, the step axes are geared with handle female screw separately, the screw axis on the outer is the smaller one. In the hole on the box cover's side have female screw be geared with the box cover. The end of handle is connected with turning handle, and other end of handle is formed screw cylinder, on its surface there are screws, they are geared with the screw axis on drive axis.

This invention discloses ocean tide power generation equipment and method, which contains V-shape check dam, overtopped dam, water storage reservoir, drainage reservoir, water intake gate, drainage sluice and power generator set. When the ocean is on the tide, open intake gate, close sluice in ebb, use the water level difference to generate electricity. Said V-shape check dam can collect sea water as the tide is small. Said invention has low cost and stable operation.

The invention discloses a safe operation scheduling system for a water conveyance project in a hilly region. The system comprises a flow division pond, a pump station front pond, a pump station, a water conveyance pipeline, a pressure tunnel, a free-flow tunnel, a high pool and a division, wherein a diversion sluice and a regulating sluice are arranged in a water conveyance system on the upstream of the pump station front pond; a flow and pressure regulation valve is arranged at an inlet of the pressure tunnel; flow and pressure regulation valves are arranged on the upstreams of the diversion and the free-flow tunnel; a flow and pressure regulation valve is further arranged at the tail end of the water conveyance system; pressure meters, flow meters, water level gauges and timers are arranged at the pump station front pond, the water inlet and outlet ends of each water pump of the pump station, the diversion and temporary regulation points along a water conveyance line. The system further comprises a control unit, wherein the data acquisition end of the control unit is connected with the pressure meters, the flow meters, the water level gauges and the timers; the control end of the control unit is connected with a water pump control cabinet for controlling the water pumps, a flow and pressure regulation valve control cabinet for controlling the flow and pressure regulation valves and a control cabinet for controlling the regulating sluice, the diversion sluice and a diversion valve.

The invention provides a tide-sensitive river network water environment treatment method based on an MIKE model, and the method comprises the following steps: step 1, establishing a river network model based on MIKE, and improving the stability and precision of the model through a method of space step length control, terrain recheck and group gate assignment operation through a time sequence; step2, determining a water replenishing and activating scheme; and step 3, determining a water supplementing process and a water supplementing amount. Complex water flow characteristics of a tidal rivernetwork are used; an HD of an MIKE11 model is used; the AD module constructs a one-dimensional hydrodynamic force and water quality model; the model can directly determine the planned flow of the sluice and the pump station and the flow and concentration of a pollution source afflux point; outputting a water level process line of each section of the river and a process line of pollutant concentration; decision bases are provided for implementation and arrangement of water replenishing and flowing water and river regulation projects in a river network area, tidal power and existing sluice dispatching and water replenishing are fully utilized, the project operation cost is low, implementation is facilitated, river surges are connected into a whole, the river surge water environment is improved, and meanwhile flood regulation is facilitated.

The invention discloses a multifunctional self-circulation filtration teaching experiment device, which is characterized by the following: setting upstream and downstream water level overflow plates on two sides of gate base; setting water gate floor on the top of gate base with gate on the top of water gate floor; connecting left and right ends of gate base with upstream backwater pipe and downstream backwater pipe; setting the colorful liquid inlet pipe among the control upstream water level overflow plate, control downstream water level overflow plate and gate base; setting water-in pipe on the left down end upstream of gate base, which connects pump with reservoir; setting the pump controller on the pump. When experimenting, the colorful liquid inlet pipe inserts on the top of gate base. The device demonstrates the earth dam and gate filtration as well as observing drafted phreatic line and flow net picture, which generates the filtration pressure and distribution under the gate base and average filtration slope-drop of each downstream outlet net flow.

The invention discloses a low-weir high pneumatic landscape gate construction method and structure. The method includes: a low overflow weir structure is adopted to guarantee silt and flood discharge capacity of riverway; a group of pneumatic gates is disposed in the width direction of the overflow weir 1, every two pneumatic gates are connected through intermediate seals 5 so as to form the integral gate weir; the whole group of the pneumatic gates of the integral gate weir is opened and closed synchronously, and riverway upstream water level is controlled by lifting the gate weir so as to satisfy the landscape requirements. The gates are of a shield-shaped stainless steel structure and novel and attractive; multistage water gate combination can be adopted without being limited by riverway width, wide application range is achieved; structures such as gate piers and support piers which influence the landscape are not needed in the riverway, and simple appearance is achieved; double-air-bag lifting is used as turning power, environmental protection, energy conservation and low carbon are achieved, and double-air-bag turning is stable; limit strips are used to limit strokes and excessive operation of the gates, safety and reliability are achieved, and the low-weir high pneumatic landscape gate can be in linkage with systems such as a water level monitoring system for automatic adjusting and control.

The invention discloses a method of measuring floodgate opening. The method comprises the steps of arranging a position switch along the position where a hoist drive gear is lifted or lowered, the position switch together with a counter of a measuring device composes a counting circuit to acquire the tooth number of the gears; the position acquires a position limit signal when the floodgate is fully opened or closed; when the floodgate is lifted or lowered, the measuring device transforms the rotation tooth number of the host drive gear to floodgate opening through opening calculation according to a tooth number signal, the position limit signal and a lifting or lowering signal. When the measuring device obtains the signals that the floodgate is fully opened or closed, the counter resets. The method of measuring floodgate opening is easy to measure, high in precision, less in error and is convenient and easy to operate, which is particularly suitable to measure the opening of dam floodgate.

A floodgate is provided. The floodgate has a panel configured to be movable between an opened position and a closed position wherein in the opened position, the panel forms a barrier against flood water. First and second extendable members coupled to the panel exert a force to move the panel from the closed position towards the opened position about at least one hinge. A deactivation mechanism is operable to deactivate the first extendable member when the panel is moved from the closed position towards the opened position, thereby reducing force exerted by the first extendable member against the panel when the panel is moved from the opened position towards the closed position.

The invention discloses a structural system for excluding sand in diversion canal of hydraulic station, comprising waste water storage dam of draining line, diversion bank, guide bank, right bank, conduit, diversion gate, sand flushing channel, sand flushing gate, waste sand storage weir of draining line, sand slot, cover of sand flushing and cover of sand guiding. Riverway is divided into draining line, sand flushing channel and conduit by diversion and guide banks. There is L-shape sand slot on the one side of the upper of sand guiding and flushing channels, of which one end is started from right bank and parallel to the direction of diversion gate, and the bottom is inclined to deepen from starting end of right bank to left end. Cover of sand guiding is fixed on the sand slot parallel with diversion gate in certain distance. The left end of sand slot ends to the position of diversion bank and gate of sand flushing and is shaped L, of which the bottom is inclined to deepen to gate of sand flushing. Cover of sand flushing is set on the sand slot to gate of sand flushing. The system can exclude sand thoroughly and automatically.

The invention discloses a water gate for heating and freezing prevention in a water conservancy project. The water gate comprises a portal frame, dam matrixes, a wire winder, a gate plate and sealingguide rails. The wire winder is arranged on the portal frame. The sealing guide rails are vertically arranged on the side faces of the dam matrixes correspondingly. The gate plate is arranged betweenthe two sealing guide rails. Lifting rings are arranged at the top of the gate plate. Steel wire ropes connected with the lifting rings are arranged on the wire winder. Each sealing guide rail comprises C-shaped box iron and T-shaped steel, wherein the T-shaped steel is arranged on the back face of the C-shaped box iron. The two sides of the gate plate extend into openings of the C-shaped box ironcorrespondingly. Electric heating bars are axially arranged in each piece of T-shaped steel. In this manner, according to the water gate for heating and freezing prevention in the water conservancy project, when the sealing guide rails are frozen due to low air temperature, power supply circuits of the electric heating bars are started, the interiors of the sealing guide rails are heated, and therefore frost on the surfaces of the sealing guide rails is thawed, and the gate plate can smoothly ascend and descend.

The invention relates to a coarse aggregate voidage testing device. The coarse aggregate voidage testing device comprises an aggregate container and a water storage device, the aggregate container is of drum structure, the sidewall of the aggregate container is provided with a hole, the water storage device is arranged on the lower portion of the outer wall of the aggregate container and below the hole. The outer side of the hole is provided with a water gate, a sealing strip is arranged between the water gate and the hole, and a protective cover is arranged on top of the aggregate container. The method using the device includes S1 calibrating the aggregate container; S2, measuring voidage, and S3 calculating voidage. The coarse aggregate voidage testing device has the advnatages that water flowing is not easy to react with or dissolve coarse aggregate, and functions as filler filling gaps among coarse aggregate during test. When the coarse aggregate is filled up, the volume of the water is the size of the gaps among the coarse aggregate, and the voidage of the coarse aggregate can be calculated by measuring water volume. The principle is simple, operation is convenient, and accuracy of voidage is high.

The invention discloses a device suitable for an instant dam break test and an operation method of the device and relates to the field of hydraulics model testing. The device includes a test water groove, a water gate, a transmission system and a triggering system. Before a dam break test starts, a gate simulating a dam body in a door groove is in a static state. When the dam break test starts, aheavy bob falls so as to pull a thin cord, so that a pin is unplugged. A cam is pulled away instantly by a spring. The gate loses support of a support rod and acquires pulling force of a transmissionsystem at the same time, and falls rapidly in an extremely short time. By adopting the device provided by the invention, formation of under-gate hydraulic jump and disturbance of upstream water body due to upward lifting of a gate in a traditional dam break test are avoided, and more accurate study of water flow motion characteristics in a dam body instant break condition is facilitated.

The invention discloses a method for comprehensively developing and utilizing a lake wetland based on the technology of reclaiming rivers from lakes. The method comprises the following steps of: building a low-lying embankment capable of being used as a highway roadbed in a lake basin between a main water inlet and a main water outlet, dividing and encircling the lake wetland into a plurality of lake sections, and manufacturing two river-in-lake water systems simultaneously; building four gate dams near the main water inlets and the main water outlets of the two river-in-lake water systems, and building a plurality of water gates and a plurality of water pump houses between the rivers in lake and the lake sections; and realizing flow-converging flood discharge, sand discharge and pollution discharge for the rivers in lake, reversible backflow for the double rivers, and clean water flood diversion and impoundment for the lake sections in the precondition of no change on the basic characteristics of the lake wetland by virtue of the water level control with a plurality of permutations and combinations, and formed by the facilities such as the rivers in lake, the lake sections, the gate dams, the water gates and water pumps, and according to water regimen information. With the adoption of the method, the water conservancy benefits and land transport benefits of flood diversion and impoundment, power generation, shipping, reclamation and the like can be obtained, the sediment accumulation of the lake wetland and the accumulation of endogenous pollution can also be greatly reduced, and the life of the lake wetland can be prolonged.

The invention relates to a blowfish culture system, which comprises a first culture pond, a second culture pond, arc partition boards, guide sieves and a water gate. The water gate is disposed at the intersection of the first culture pond with the second culture pond. The bottom of each of the two culture ponds is in an approximately conical structure convenient for discharging and clearing fish residue. An aerating device is disposed at the bottom of each culture pond. The arc partition boards in a pair with the upper ends above the water are disposed in the middle of each culture pond, are opposite to each other, and are overlapped at the ends provided with gaps, where openings of the gaps are in the same direction as water flow. The upper end of each arc partition board is provided with a round hole by which the partition board can be conveniently moved or conveniently moved out of the water with a stick and / or pole. Each guide sieve is disposed between the corresponding arc partition board and the exterior wall of the corresponding culture pond. The blowfish culture system can be used for graded culture, the risk of mutual predation can be lowered, the survival rate is improved, and the economic benefit is improved.

The invention discloses a double-layered pump gate arrangement structure, which comprises a concrete structure. A pump station body and a water gate chamber are integrated to form the concrete structure, the pump station body, a pump station forebay and a water outlet pond are arranged in the concrete structure, a station body self flowing channel is arranged in the pump station body, a water pump is mounted in the pump station body, and the station body self flowing channel passes through the water pump; a pump station water inlet flow channel gate is disposed at an inlet of the station body self flowing channel, and a pump starting work gate and a pump stopping work gate are disposed at an outlet of the station body self flowing channel; and a gate culvert which forms a gate chamber is arranged below the station body self flowing channel, a water gate forebay which is also used as the pump station forebay is disposed outside an inlet of the gate culvert, a stilling pond which is also used as the water outlet pond is disposed outside an outlet of the gate culvert, and a culvert gate is disposed in front of the outlet of the gate culvert. The double-layered pump gate arrangement structure is particularly applicable to conditions that widths of pumps, gate hub fields and water inlet and outlet guiding channels are limited, for example, water intake of combination of power lift and self flowing of center urban regions and middles of rivers is realized by the double-layered pump gate arrangement structure.

The invention discloses an ascending descending and water drainage integrated device of an automatic garage floodgate. The ascending descending and water drainage integrated device of the automatic garage floodgate comprises a floating ball positioned inside a flood prevention wall body. The floating ball is used for fast driving a power arm to lift up under the buoyancy effect when flood rushes into the inside of the flood prevention wall body through a reticular manhole lid; through the effect of a support rod, the resistance of a sensing rod is decreased; through an electric wire, a signalis transmitted to an asynchronous motor so that the asynchronous motor is driven to work; through the movement of a transmission shaft, a support plate of a jack is raised, so that the whole of the flood prevention wall body is raised for flood prevention; a wall body water inlet is formed in the flood prevention wall body; after the flood prevention wall body is raised, flood enters the flood prevention wall body through the wall body water inlet; the floating ball floats up or descends according to the water inlet quantity so as to automatically control the ascending and descending of the flood prevention wall body; and additionally, a water pumping pump and a water discharging pipeline are also arranged inside the flood prevention wall body and are used for achieving a flood draining effect through being connected with a sewer. The ascending descending and water drainage integrated device of the automatic garage floodgate has the advantages that the fast ascending and descending ofthe flood prevention wall body can be realized according to the water quantity, and the flood can be timely prevented from rushing into a garage to avoid the loss; meanwhile, installation is convenient; and trouble and labor are saved.

The invention discloses a multi-stage self-collapsing closed headwork and belongs to the technical field of hydro project headworks. The multi-stage self-collapsing closed headwork can resist flood exceeding the designed level, is simple in structure, convenient to implement and low in construction cost and does not occupy space permanently. The problem that headworks are damaged by flood exceeding the designed level is solved through the disaster prevention and mitigation design theory of the multi-stage self-collapsing closed headwork. The structure of the multi-stage self-collapsing closed headwork comprises a flood discharge bottomland (2-2), an earthy embankment (3), a geotechnical synthetic material armour earthy flood diversion dyke (4), a geotechnical synthetic material protecting multi-stage self-collapsing earth embankment (5), an intake gate (6), a barrage gate (7), a rockfill dam (8), an earthy barrage (9), flood diversion farmlands (10), a gulch (11), rope system non-woven fabric grid bands (12) and a rope system non-woven fabric bottomland locking penetrating band (13). The structure is suitable for closed headworks with the bottomland, headworks with rockfill dams, open headwork bottomland treatment and headworks with flood exceeding the designed level outside the embankment farmland for flood diversion.

The invention provides a novel multifunctional water gate, relates to the field of water gates, and aims to solve the problems that when an existing novel water gate is used, the function is single, garbage floating in water cannot be collected, a garbage collecting structure cannot be moved according to needs, and use is inconvenient. The novel multifunctional water gate comprises a main body, the main body is of a T-shaped structure, a motor is installed in the middle of the main body, a round hole is formed in the middle of the main body, and a shaft rod of the motor is inserted to the interior of the round hole. After the novel multifunctional water gate is used for a long time, water flow impacts garbage and sundries in water to rush to the shore and the main body, when water drives the garbage to impact, the garbage can enter the interior of a collecting tank, and therefore an auxiliary block can assist in blocking the garbage, and the garbage can be effectively stored and collected; and when the gate is opened to drain water, a collecting piece can further filter the water, and therefore garbage can be blocked, fishes and shrimps can be intercepted, and aquatic products cannot be lost.

The invention discloses a governing system for the severe eutrophication of a lake bay. The governing system comprises a bottom-layer pool, a surge tank, a lifting type water gate, a sector water inlet pipe, a water pump, a wind-solar hybrid power supply, a unique automatic control back washing system, a micro / nano bubble generator double linking unit; the self-purifying function of an integral lake bay is systematically designed; two dominating factors that hypertrophic bottom water of the lake bay lacks of dissolved oxygen and a lake bay water body is difficult to change are overcome. The invention provides a technical scheme with the advantages of high simplicity, high practicality, energy conservation, environmental protection and low construction cost; the endogenous self-purification ability of the lake bay is formed by establishing the long-term self-reoxygenation cycle, and the defects of a governing mode of diverting river water to control algae in lakes on a large scale are overcome. The technical scheme is combined with the governing mode of diverting the river water to control the algae in the lakes on the large scale, and a better governing effect is expected to be obtained.

The invention discloses a method for calculating a water level flow relation under a tidal reach sluice, and belongs to the technical field of water conservancy projects. In order to conveniently andaccurately determine the water level flow relationship under a river mouth tidal reach sluice, a MIKE21 hydrodynamic module is utilized to establish and verify the two-dimensional mathematical model of the tidal river reach, low tide and high tide encountered by sluice discharge are considered, and the water level flow relationship under the sluice is simulated and calculated for sluice energy dissipation and scour prevention design and sluice discharge capability rechecking. According to the method, different flows discharged by the sluice can be well matched with different high and low tidelevels, the calculation result is reliable, the water level flow relation under the sluice can be accurately obtained, and a scientific basis is provided for engineering construction.

An automatically opening-closing streamlined water gate install in river for storage of water is characterized by that the liquid can be filled in it for regulating its dead weight, it can be automatically closed or opened by water pressure according to standard water level, and a lifting mechanism is installed for forced drainage.

The invention discloses a method for building and repairing a dam of a flooded paddy field, and relates to the field of agricultural production and water conservancy construction. By using the method, a water storage function of the flooded paddy field is fulfilled, the natural wetland of the Dazhou can be recovered, the water level of the flood peak of a river is reduced, flood damage of the river of the Dazhou is reduced, and functions of flood storage and drought control are fulfilled. The dam of the flooded paddy field consists of Z-shaped plates (1), field dam flood storage plates (2), a planting stepped water gate (3), a flood storage inclined plate trumpet-shaped water gate (4) and connecting plates (5). Before raining, the water gates are opened, and clear water in the flooded paddy field is drained; during raining, the water gates are closed, flood is stored, the water level of the flood peak of the river is reduced, and the quantity of muddy sand in the flood is reduced; and the rainwater can be stored by the flooded paddy field at all seasons, by using the rainwater, planting, cultivation and drought control can be carried out, and functions of the natural wetland of the flooded paddy field of the Dazhou can be recovered.

A floodgate is disclosed. The floodgate comprises: a panel for installation at a doorway to form a barrier against flooding; a hinge, the panel being movable between an opened position and a closed position about an axis of the hinge, the axis extending in use in an upright direction; and a sealing element coupled to an edge of the panel to provide sealing engagement with the ground when the panelis in the closed position thereby forming the barrier against flooding; wherein the hinge is configured to corporate with the panel to, upon the panel being moved from the closed position towards theopened position, cause the panel to move away from the ground thereby releasing the sealing engagement between the sealing element and the ground.

The invention discloses a water intake constructing method and structure considering both agricultural irrigation and living water supply. The method includes: a deep water intake gate hole 10 is formed in the bottom of a water intake, and a deep water gate 13 is disposed at the deep water intake gate hole 10; a stop log gate is disposed on the upper portion of the water intake 1, and a service gate hole 3. The water intake constructing method and structure considering both agricultural irrigation and living water supply has the advantages that when reservoir downstream has comprehensive requirements of agricultural irrigation and living water supply, appropriate water temperature layer reservoir water can be provided for agricultural irrigation, and deep reservoir water with good water quality can be provided for living water supply; perfect combination of reservoir ecology protection and engineering economic benefits is achieved, and the defects of tradition water intakes are overcome.

The invention discloses a flood control and drainage calculation method for a lake and river sluice pump system in a plain lake area, which comprises the following steps of: designing an in-lake floodprocess and an in-river flood process by adopting a rainfall runoff model according to day-by-day rainfall and day-by-day water level data of a plain lake area hydrological survey station; calculating the water level below the first-stage sluice, the water level above the last-stage sluice, the water level in front of a pump station and the water level of a riverway measuring point of the two-stage series sluice group by utilizing an open channel non-constant flow basic equation with lateral inflow; establishing gate outflow models under different flow states of the sluice to calculate sluicedischarge capacity; establishing a flood diversion area flow calculation model to calculate flood diversion flow; and establishing a pump station drainage model to calculate the drainage capacity ofthe pump station. According to the method, the model of the flood control and drainage system state result can be effectively solved according to the known conditions and the specified scheduling strategy; and according to a computer simulation result of the flood control and drainage system state, opinions of large-scale flood drainage pump station scheduling and main lake control application areproposed.