271 results about "Water level rise" patented technology

Water leak detecting or overflow devices for a toilet may be inserted into or formed integrally with the toilet. The devices include at least one water leak sensor assembly mounted in a position in a toilet tank so as to detect the rise and fall of the water level in the toilet tank and an overflow detector in a toilet bowl. If the water level rises and falls a predetermined number of times, or if water continues to flow to the toilet longer than a measured increment of time, a microprocessor operates a normally-open valve and shuts off flow of water to the toilet tank. The devices also include a second sensor, whereby if a flapper remains open or water reaches a level where it might overflow the bowl or tank and stays there for a predetermined period of time, the microprocessor will also shut off flow to the toilet.

An automatic replenishing mechanism for a pet drinking fountain is a container having a water injection element, a float, a linkage set, and a sealing plug. The water injection element, connected to the container, has a water inlet and a base. The float, connected by a link bar to the base, is located underneath the water inlet and limited by a guiding portion to float longitudinally. The sealing plug is mounted on the link bar near the water inlet. When water level rises to elevate the float, the link bar rotates to push the sealing plug. When the float floats to a predetermined level, the sealing plug blocks the water inlet to stop water supply. When a pet drinks water and the water level drops, the float sinks from the predetermined level. The link bar rotates to retreat the sealing plug from the water inlet, thereby automatically replenishing water.

The invention discloses a washing machine water inletting monitoring method, which comprises the following steps: resetting a timer before letting water in, judging whether a washtub is empty or water level is lower than set water level, starting to let water in after fuzzily judging and weighing clothes weight if the washtub is empty, executing a washing program if the water level reaches the set water level, starting to let water in if the water level does not reach the set water level, the timer starting to time after water is let in, detecting whether the water level rises or not in a settime to judge whether water inletting is normal or not, alarming if the water level does not rise or the water level rise cannot satisfy preset conditions in the set time, otherwise continuously letting water in and circulating the steps, and stopping letting water in when the water level reaches the set water level, or executing water inletting overtime alarm if water inletting time reaches total set time but the inlet water does not reach the set water level. The invention has the advantages that the water level variation is dynamically detected when water is let in to judge whether the water inletting state is normal or not, the water inletting is cut off and the alarm is given to inform the user if the water inletting state is not normal, and the situation of time wastage caused by waiting for washing under the condition of no inlet water is avoided.

The invention discloses a multifunctional unsaturated soil permeameter and a testing method thereof. The permeameter comprises a first bracket, a second bracket, a water supplementing device which is fixed on the first bracket and can perform up-and-down adjustment, and a soil sample permeation device which is fixed on the second bracket and can perform up-and-down adjustment, wherein the water supplementing device and the soil sample permeation device can be combined to form an underground water level rise simulation device, a flooding simulation device or a rainfall simulation device. The testing method comprises the following steps of: 1, performing underground water level rise, flooding and rainfall simulation tests, namely respectively performing the underground water level rise, flooding and rainfall simulation tests on the same tested soil sample by employing the underground water level rise simulation device, the flooding simulation device and the rainfall simulation device; 2, performing test data arrangement, and acquiring a permeation characteristic testing result of the tested soil sample. The multifunctional unsaturated soil permeameter is reasonable in design, low in investment cost, simple in operation, convenient in realization and good in using effect and can simply and rapidly finish the permeation characteristic testing process of unsaturated soil.

The invention relates to a novel non-pressure irrigation rig. The water outlet valve of a water supply tank is opened, irrigation water flows into a water level control tank, when the water level of the tank is higher than h1, an intake tube is submerged, air suction is changed into water inflow until the water level in the intake tube is equal to the water level in the water supply tank, the irrigation water does not flow into the water level control tank, the water level of the tank is stabilized at the water level slightly higher than h1, the irrigation water enters into a filling area at the upper part in a U-shaped slot by virtue of a permeable cover plate and a sand inverted filter from the bottom in the U-shaped slot of the irrigator, a soil saturation water layer which is at the same height of the water level of the water level control tank and is lower than the upper edge of the U-shaped slot, water of the saturation water layer rises to the root layer of a crop in a capillary water way, a crop consumes water to cause the water level of the water level control tank to be lower than h1, the intake tube comes out of water surface, air is sucked in air bubbles, the irrigation water flows into the water level control tank, the water level rises to submerge the intake tube again, the crop consumes the water to cause the water supply process to be repeated, the output of supplying water is increased or reduced along with water consumption, irrigation is adaptive, and the irrigation rig is simple to operate and is convenient to use.

The invention relates to a soft plant floating bed which is applied in revetment and water purification, which is a composite plant cultivation apparatus on water that adopts a disk-shaped single floating bed as one unit, wherein, a plurality of hygrophytes or amphiphytes are cultivated in the floating bed to form a floating bed that can float in the water; meanwhile, the aim of in-situ remediation and the control of the eutrophic water can be reached by using the plant to provide the biological cleaning function on the eutrophic water in lakes, rivers and channels. The main characteristics or effects of the floating bed are that: 1. the invention is used for acting the biological purification on eutrophic water in different waters; 2. one end of the floating bed is fixedly connected to the bank, which provides protection to the hydro-fluctuation belt and bank of reservoirs, lakes, rivers and channels. When the water level rises, the plant in the floating bed which grows on the water can absorbs the water nutrition enrichment to decrease the eutrophication degree; when the water level decreases, the floating bed covers the hydro-fluctuation belt to provide wave absorption and a protection layer for the bank.

The invention relates to the siphon water intaking technology, in particular to a vacuum pump-assisted siphon water intaking device and a method. The device comprises a siphon pipe, a water duct, a vacuum pump communicated with the top part of the siphon pipe, and a valve arranged at the water outlet end of the water duct. The method is implemented as follows: at the starting stage, air in the siphon pipe and the water duct is exhausted by the vacuum pump, the water level rises to tank up the siphon pipe and the water duct, the vacuum pump is stopped, and the valve at the water outlet end of the water duct is started to perform siphon water intake; and at the running stage, when air gathers in the siphon pipe, the vacuum pump is started to exhaust the gathered air so as to ensure continuous and stable operation of a siphon water intaking pipe without water interruption. The invention solves the problems of difficult starting and instable operation of siphon water intaking of a large pipeline, improves the normal suction head of the siphon pipe, and saves engineering cost and operation power consumption respectively by over 90% compared with the method of establishing a pump station.

The invention relates to a water level monitoring device. The water level monitoring device comprises an ultrasonic sensor, a water pressure sensor, a communication module and a power supply. When any one of an ultrasonic detector and a pressure probe detects that the water level rises, a microprocessor is activated, and the ultrasonic detector is extremely sensitive and can detect imperceptible changes, so that response of the device is more sensitive. In addition, the ultrasonic sensor monitors the water level through an echo location mode and is not affected by the water velocity and direction, and therefore water level information can be obtained more accurately. Furthermore, weighting treatment is conducted on the water level information obtained through the ultrasonic sensor and water level information obtained through the water pressure sensor to obtain a current water level, and therefore an error between the obtained current water level and the practical water level can be further reduced. Therefore, the water level monitoring device can effectively improve the reaction sensitivity and monitoring precision. In addition, the invention further provides a water level monitoring method and a well lid.

The invention discloses a loess platform landslip comprehensive treatment method based on underground water level control. The method is characterized in that a method combining the long term and the medium and short term is adopted; a long term treatment method includes the step that the unfavorable situation that the underground water level rises continuously is restrained based on a water-saving irrigation initiative prevention and control measure, and therefore a landslip risk is controlled; and a medium and short term treatment method includes the step that the existing ultra-high underground water level fast lowers through an effective drainage engineering measure, and the purpose of reducing landslip hazards is achieved. The loess platform landslip comprehensive treatment method has the beneficial effects that by means of the technical scheme, both symptoms and root causes of landslips can be treated, on the long term scale, the unfavorable situation that the underground water level rises continuously is restrained based on the water-saving irrigation initiative prevention and control measure, and therefore the landslip risk is controlled; and on the medium and short term scale, the existing ultra-high underground water level fast lowers through the effective drainage engineering measure, and the purpose of reducing the hazards is achieved.

The invention discloses an L-shaped flood control wall structure and a flood control wall group. The L-shaped flood control wall structure is characterized in that a main water retaining plate is hinged to a bottom plate; waterproof cloth is mounted in the main water retaining plate and the bottom plate; supporting fixing seats and steel wire rope fixing seats are fixed to the main water retaining plate and the bottom plate; the main water retaining plate and the bottom plate form a flood control wall through supporting of inclined supporting rods and stretching of steel wire rope reinforcing ribs; a bottom plate of the flood control wall is fixed to the ground, and is firmly pressed on the ground through pull hooks and pressing screws; and the bottom plate and the ground form a sealed structure. According to the L-shaped flood control wall structure, the L-shaped flood control wall group is formed through combination of a plurality of flood control walls with the same structure, and the main water retaining plate and the bottom plate are supported and stretched through the inclined supporting rods and steel wire ropes, so that the integral firmness and stability are improved; the pull hooks on the bottom plate are fixed to the expansion bolts on the ground, so that the bottom plate and the ground are sealed; and after the water level rises, the bottom plate fits the ground more tightly under the action of water pressure, the higher the water level is, the better the sealing is, and the capacity, of resisting floods in the flood season, of the flood control wall is greatly improved.

The invention discloses a low-energy-consumption water surface garbage collector, and relates to the technical field of environmental protection equipment. The low-energy-consumption water surface garbage collector mainly solves the problem that garbage in a water channel floats on the water surface and is inconvenient to clear. The low-energy-consumption water surface garbage collector mainly comprises a water channel, wherein a clearing mechanism, a protection mechanism, a limiting mechanism, a garbage catching mechanism and a collecting mechanism are arranged in the water channel; water flows in the water channel to drive the garbage to move in the water channel; the garbage is intercepted by interception nets; the interception nets can be prevented from moving through pulleys on lifting columns; with the accumulation of the garbage, the flow speed of the water becomes slow, and the water level rises, so that floating blocks rise to avoid the interception nets, the interception netsrotate, and the garbage enters a catching box; and a water containing barrel is used for guiding the water into the catching box and causing the garbage to enter a collection box. The low-energy-consumption water surface garbage collector has the beneficial effects that the low-energy-consumption water surface garbage collector can automatically catch and collect garbage and is convenient for clearing the garbage in the water channel.

A pipeline drainage structure comprises a baffle mechanism and a floating ball pulling mechanism, wherein the baffle mechanism consists of a fixed cover plate and a movable cover plate which are vertically overlapped together and provided with drain holes, and the drain holes on the fixed cover plate and the drain holes on the movable cover plate are staggered in position; one side of the movable cover plate is connected with a spring, and the other side of the movable cover plate is connected with the floating ball pulling mechanism; and the floating ball pulling mechanism consists of a floating ball, a traction rope and a fixed pulley, one end of the traction rope is connected with the floating ball, and the other end of the traction rope is connected with the movable cover plate by bypassing the fixed pulley. The pipeline drainage structure utilizes the buoyancy principle; the floating ball falls naturally in low water level under the gravity action, and the movable cover plate of the baffle mechanism is reset under the pulling action of the spring, and at the moment, the baffle mechanism is closed; and when the water level rises, the floating ball rises under the action of buoyancy to drive the movable cover plate to move, so that the drain holes on the fixed cover plate and the drain holes on the movable cover plate are gradually coincident together, and the baffle mechanism is opened.

The invention relates to an anti-collision device for a pier. The anti-collision device is used for protecting the pier against ship collision and comprises a circular anti-collision buoyancy tank anda plurality of guide wheels arranged on the inner side of the anti-collision buoyancy tank; the pier is sleeved with the anti-collision buoyancy tank; and the guide wheels are constructed in such a manner that the guide wheels can rise and fall along with the anti-collision buoyancy tank and roll on the pier. The anti-collision device can protect the pier against ship collision, and meanwhile, the condition that a protection device cannot play a role in protection due to the fact that the protection device is submerged due to water level rise can be prevented. Meanwhile, the length is not required to be increased, so that the cost is reduced, and the better protection effect is realized.

The invention relates to a river-crossing guy cable elevating and moving nacelle-type net-cage technique which comprises a net-cage and supporting bodies of the net-cage. The supporting bodies mainly comprise supporting columns arranged across river and a river-crossing guy cable positioned among the supporting bodies. The short frame of the net-cage and the river-crossing guy cable are commonly provided with a hoisting device and a left-right shifting device of the net-cage. The short frame of the net-cage is provided with a fulcra and the river-crossing guy cable is provided with a hanging beam. A lifting rope is connected between a capstan spindle and the hanging beam. The elevating and shifting device of the net-cage are provided with manual type, dynamic type and automatic elevating devices. The invention provides the device essential to develop multiple river aquacultures for the professional aquaculture farmers, is suitable for the operation needs and daily management of breed stocking and catching. Once water level rises, the fish and shrimp or other aquaculture products can not escape easily. When needed, the net-cage can be hung up and shifted near to the bank, thus not influencing the transit of ships in river and even not influencing the flood discharge in blood season.

The cascade water blocking and water storage system used for municipal rainwater pipe network includes water blocking system and water storage system. The water storage system includes a reservoir, which is composed of a water blocking device and a rainwater culvert or a pipe network. The water blocking facility is equipped with an opening and closing mechanism for opening or closing the gate, and is equipped with a water level sensor, a flow rate sensor and a gate. The position sensor is used to measure and obtain signals such as water level, water level rising speed, water flow speed and valve position. On the basis of retaining the functions of the original municipal culverts and pipe network to discharge rainwater, this system has newly set up water blocking, water regulation and storage facilities, and is equipped with an intelligent control system to realize cascade automatic regulation and storage of rainwater in municipal facilities without the need for new storage. Larger cost investments such as pools and rainwater tanks have also unearthed new functions of municipal rainwater facilities, giving full play to the implementation value of existing urban infrastructure, and accelerating the construction and realization of sponge cities.

The invention discloses a water level rising and falling device of a geotechnical centrifuge. The water level rising and falling device comprises a model box installed in a hanging basket of the centrifuge. A model base plate is arranged at the bottom of the model box and supported by stand columns located below the model base plate. A gap is reserved between one lateral face of the model base plate and the corresponding side wall of the model box. The bottom of a test water tank is connected with the bottom of the model box through connecting pipes. An air inlet pipe is connected to the top of the test water tank. A method for simulating rising and falling of the water level through the water level rising and falling device when the geotechnical centrifuge runs includes the steps that high-pressure air is led into the test water tank, water is pressed into the model box, and the pressure of the high-pressure air is controlled to achieve stable and repeated rising and stable and repeated falling of the water level in the model box. According to the water level rising and falling device, rising and falling of the water level are achieved through the characteristics that air pressure transmission is rapid and almost free of gravity influences, and can be carried out under the condition that the centrifuge does not stop; influences, caused by a high centrifuge field generated by the geotechnical centrifuge, on rising and falling of the water level can be avoided, the structure is simple, and operation is convenient.

The invention discloses an experimental water channel device for simulating instantaneous and complete break of a dam. The experimental water channel device for simulating instantaneous and complete break of the dam comprises a water channel, a baffle and a buoyancy twisting device. A support is arranged in the water channel, the baffle is fixed at the bottom of the water channel through a hinge device, the buoyancy twisting device is arranged on the support and comprises bearings, bolts, floating rods and floating balls, the buoyancy twisting device is fixed on the upper portion of the support in the water channel through the bearings, each floating rod and each bearing are fixed together, one end of each floating rod is connected to each bolt through each bearing, and the other end of each floating rod is connected to each floating ball. In the initial phase, the floating balls are vertically downward, and the baffle is perpendicularly fixed in the water channel. When the water level in front of the dam rises, the floating balls rise in a floating mode, twist the floating rods so as to twist the bolts, when the water level rises to a certain degree, the bolts are twisted to exceed the boundary of the baffle, and the baffle is instantaneously pressed down due to pressure of a water body in front of the dam. The experimental water channel device for simulating instantaneous and complete break of the dam avoids errors caused by human factors to experiment engineering, and improves accuracy and repeatability of an instantaneously complete dam break experiment.

The invention discloses a water inlet valve, a double water inlet water pipe, and a double drainage water tank. A decompression valve plate of the water inlet valve is arranged in a pressure cavity, a heightening screw rod is arranged on the decompression valve plate and penetrates out from a decompression port, a counterweight floating body is arranged on the heightening screw rod, the specific gravity of the counterweight floating body is slightly smaller than water, and the arranged weight can press the decompression valve plate downwards to get away from the decompression port; the double water inlet water pipe is provided with a tap water port and a valve port, as well as a recovery water port and a recovery water outlet; and the double drainage water tank is provided with two water falling ports, two sets of water drainage systems are mounted, one set is introduced to an underground sewage pipe, and the other set is connected with a recovery water port on a water tank of a toilet. The water inlet valve, the double water inlet water pipe, and the water tank can be combined to form a water tank water inlet system capable of recovering and utilizing waste water, and when waste water is added into the water tank and the water level rises, the buoyancy of the counterweight floating body is very small, so that the damage to a valve body is avoided.

The invention discloses an Ethernet flow control device and method based on microwave transmission. The Ethernet flow control method includes the steps: detecting adaptive coded modulation (ACM) information of wireless links in real time, and generating rate-limiting frames and sending the rate-limiting frames to a data sending end when the Ethernet bandwidth is changed due to changes of ACM; and monitoring changes of a buffering water level in real time while the ACM information is detected, generating flow-control frames and sending the flow-control frames to the data sending end when the buffering water level rises to a highest threshold, and generating flow-control removing frames and sending the flow-control removing frames to the data sending end when the buffering water level falls to a lowest threshold. The Ethernet flow control device comprises an ACM real-time detecting module, a rate-limiting frame generating module, a sending and buffering real-time monitoring module, a flow-control frame generating module and a scheduling module. According to the Ethernet flow control device and method, a sending rate is adaptively adjusted through combination of flow control and exit rate limiting, and time delay of high priority services can be guaranteed.

The invention relates to a weathered bedrock hydro-fluctuation belt land seedling cultivation and water growth tree planting method. Because of seasonal water level rise and fall, the weathered bedrock area of the submerged land around a reservoir area exposes periodically, and the method is used for permanently greening the weathered bedrock area by planting trees. The method is characterized in that according to the rise and fall gradient of the water level, root-control container seedlings with corresponding sizes are cultivated on the land, so that land cultivation is completed, then, planting holes are dug on the weathered bedrock hydro-fluctuation belt, planting is directly carried out, and water growth is completed. With any water level, planted water-tolerant hygrophilous trees can partially expose out of the water surface, the photosynthesis and respiration of seedlings can be guaranteed, the phenomenon that soil at the roots of trees is washed out year after year is prevented, the growth of the trees is stabilized, the species of diversity is enriched, and the strong slope protection and soil fixation effects are achieved.

The invention discloses a real-time runoff sediment content measuring device and a measuring method, belonging to the technical field of measurement. The real-time runoff sediment content measuring device comprises a measuring barrel, a weighing sensor, a water discharging pipe, an electric valve, a liquid-level sensor, a controller and a processor, wherein the measuring barrel is placed on the weighing sensor; the electric valve is arranged on the water discharging pipe at the bottom of the barrel; the liquid-level sensor is arranged above the measuring barrel; the processor is connected with the weighing sensor, the electric valve and the liquid-level sensor by the controller respectively. The measuring method comprises the steps of setting the highest and lowest water levels in the measuring barrel and the switching-on time and the switching-off time of the electric valve; continuously guiding muddy water into the measuring barrel, measuring the height of the water level in the measuring barrel and the weight of water in the measuring barrel, and transmitting obtained values to the processor by the controller; when the water level rises to the highest water level, switching on the electric valve and discharging the water in the measuring barrel; when the water level falls to the lowest water level, switching off the electric valve; and processing obtained and set parameters by adopting the processor so as to obtain the weight of the runoff sediment of the barrel. The real-time runoff sediment content measuring device and the measuring method disclosed by the invention have the advantages that the content of the runoff sediment with different soils can be accurately measured and online measurement can be realized.

The invention discloses a self-regulation gate. The self-regulation gate comprises a bottom shaft (1), a gate (2), a cable (3) and a clump weight (4), wherein the gate (2) is connected with the bottom shaft; a pulley block (5) is arranged between the gate and a gate pier; and the clump weight (4) is wound on the pulley block (5) through the cable. For the self-regulation gate adopting the technical scheme, the gate is pulled by the clump weight through the pulley block; when the water level descends and water flow becomes smaller, the gate is pulled up, even is closed under the action of the clump weight so as to ensure stored water in a reservior at a certain water level; when more water is stored in the reservoir and the water level rises, the thrust of the water to the gate becomes bigger and the gate is pushed to be opened; the clump weight is used for balancing the opening angle and speed of the gate; the weight of the clump weight can be set according to the field requirement; the opening state of the gate can be automatically controlled according to the water level and the size of the water flow; and the self-regulation gate has simple structure and is convenient to maintain.

A large vault or tank receives the runoff water to be cleaned. There are one or more small tanks in the large tank (vault). Each small tank is inverted and receives water at its open lower end, from the large tank. The water entering the small tank rises, as the water level in the large tank rises, and flows upward through a filter. When the water level rises above the top of the filter it enters an outlet tube or pipe and then flows downwardly along the center-line of the filter. A float, a valve and a check valve may cause the system to function as a siphon and feed the filtered clean water to an outlet. Alternatively the siphoning effect will occur if the inside diameter of said outlet tube is small enough to form a partial vacuum.

A water-saving and efficient water treatment filter is a circular device, which is provided with more than one group of conical sieves inside. Each group of the sieve consists of a sieve (2) and a separating layer (3). Clear water penetrates the sieve (2) and goes into the production section along the separating layer (3). Suspension sticks on the sieve (2) to make the water flow of the filter suffocate, and the water level rises to the designed position. A water level controller (5) transmits a signal to a control center (6), and the control center (6) orders opening a wash water valve (8) and starting a vibrator (7) to clean the sieve (2).

A floating dock mooring article, which slidably fits around a watercraft dock pipe, comprising a flotation device attached to a mooring member and a flange generally located at the upper end thereof. A watercraft is moored to the dock, as by a rope, via the flotation mooring article. When the water level rises as due to a flood, the float will cause the mooring article to raise-up the dock pipe and maintain securement of the watercraft to the dock.

The invention relates to the technical field of drainage flood prevention, and particularly discloses an automatic drainage flood prevention early warning method; the automatic drainage flood prevention early warning method comprises the steps of acquiring the water level data of a water collecting well and a water level image of the water collecting well; if the water level data of the water collecting well is lower than a set water level threshold value, sending a control instruction for stopping drainage to a water pump; if the water level data of the water collecting well reaches the set water level threshold value, controlling the water pump to drain; if the water level data of the water collecting well is higher than a first water level threshold value, sending a water level warningsignal to an upper computer; if the water level data of the water collecting well is higher than a second water level threshold value, calculating the water level rising speed of the water collectingwell according to the water level image of the water collecting well; calculating the time that water level of water collecting well overflows a cable trench; and sending the water level image of thewater collecting well and the time that water level of water collecting well overflows the cable trench to the upper computer. The invention further discloses an automatic drainage flood prevention early warning device and system. The automatic drainage flood prevention early warning method provided by the invention has the advantages of being flexible and capable of realizing remote monitoring.

The invention belongs to the field of centrifugal model tests, and particularly relates to geotechnical centrifuge model testing equipment and an excavation simulation method. The geotechnical centrifuge model testing equipment comprises a model box. A water storage tank is arranged at the inner bottom of the model box. A foundation pit cavity and an earth filling cavity filled with an earth material are formed in the upper middle portion of the model box and located on the water storage tank, and the foundation pit cavity and the earth filling cavity are divided by a vertically-arranged underground diaphragm wallboard. A water level tank which is connected with the water storage tank through a first guide pipe and used for controlling the water level of the earth filling cavity to go up and down is arranged in the earth filling cavity. The water level tank and the earth filling cavity communicate with each other through densely-distributed water seepage holes. The foundation pit cavity is connected with the water storage tank through a second guide pipe. The underground diaphragm wallboard is provided with a strain gage used for monitoring inner force exerted on the underground diaphragm wallboard due to foundation pit excavation and underground water level change, and an earth pressure sensor used for monitoring lateral soil pressure change. The testing method for simulating water level rising and falling and foundation pit excavation under the condition that a geotechnical centrifugal machine is not halted is adopted; and test operability is high, the model can be manufactured conveniently, soil mass water level change of the periphery of a field foundation pit and the excavation process of the foundation pit can be truly simulated, and a powerful approach is provided for studying stability of the foundation pit wall.

A tidal power generator has a floating vessel hull that is subject to rising and falling water levels so that the hull moves vertically up and down. Linear-to-rotary converters are coupled between the vessel hull and a fixed object. The converters allow the hull to move vertically while constraining the horizontal movement of the hull. The converters convert the vertical movement of the hull into rotary movement, which is then used to drive an electrical generator. A harborage is provided to protect the hull and the converters and to regulate the water level for the vessel hull as well as become a fixed object relative to the vessel from which a change in relative position causes power to be developed. If the hull is subject to tidal variations, vertical movement of the hull can be desynchronized from the tidal variations so as to store energy during slack tides.

The invention discloses a lake and reservoir channel storage curve determining method based on hydrometry. The lake and reservoir channel storage curve determining method includes the steps that water volume conservativeness inspection and correction of flow observation data are conducted; an inlet average daily water level model of a river way is determined on the basis of hydrometry data within the water level rise and fall period with the inlet average daily flow, the outlet average daily flow and the outlet average daily water level as parameters; the lake and reservoir channel storage process within the typical hydrologic year water level rise and fall period is calculated day by day, and the channel storage amount of each date is obtained; the function relationship between the channel storage amounts and represented water levels is determined; and a channel storage curve family is drawn according to the function relationship of the channel storage amounts and the represented water levels. According to the lake and reservoir channel storage curve determining method, the semi-empirical function relationship of the channel storage curves is derived according to the hydraulics principle, the clear physical meanings are achieved, the lake and reservoir channel storage curves with the water level as the independent variable and with the flow as the parameters can be determined with the help of the conventional hydrometry data of the river way, and a low-cost convenient route is provided for estimation of the lake and reservoir channel storage amounts.