296 results about "Water release" patented technology

The invention discloses a multi-water-source joint scheduling method and system, and relates to the technical field of water resource scheduling, and the method comprises the steps: setting a flood control water level target, and calculating the real-time water level data of each reservoir and the water level deviation value of the flood control water level target; predicting the water discharge amount of each reservoir by using a reinforcement learning algorithm, and adjusting the predicted water discharge amount based on the real-time water level change trend; a cooperative control mechanism between the reservoirs is constructed, gate flow parameters of all the reservoirs are calculated through a time sequence algorithm, and a reservoir gate control model is constructed based on the gate flow parameters; generating a gate control instruction in combination with the reservoir gate control model; and inputting the generated gate control instruction into a gate controller, and in combination with a preset scheduling rule, executing water source scheduling between reservoirs. The reinforcement learning algorithm is used for predicting the water discharge amount, dynamic adjustment is conducted according to the real-time water level change trend, unnecessary water resource waste is avoided, and the risk of isolated operation is reduced.

The invention relates to the technical field of reservoir ecological management, in particular to a reservoir ecological scheduling method and system and a storage medium. The method comprises the following steps: carrying out vertical section multi-source parameter acquisition on a reservoir through a sensor array to obtain an original section data set; carrying out bottom mud-water body substance exchange strength characterization on the original profile data set to obtain an exchange flux comprehensive index; layering the reservoir according to the exchange flux comprehensive index to obtain a reservoir horizon structure chart; performing season-depth partition according to the reservoir horizon structure chart to obtain a partition statistical feature set; performing ecological safety response association on the partitioned statistical feature set to obtain an ecological safety domain map; and performing exchange flux and scheduling constraint analysis according to the ecological security domain atlas to obtain an exchange flux deviation table and a scheduling constraint condition set. According to the invention, a scientific scheduling method is provided for health of the reservoir ecosystem through collaborative optimization of water level regulation and control and layered drainage.

The invention relates to the field of hydrogeology, and discloses a mine pit water inflow prediction method suitable for cohesive soil coverage, which comprises the following steps: special drilling: performing monitoring drilling on a mine, and simultaneously respectively adopting cohesive soil undisturbed samples at different positions to obtain cohesive soil data; monitoring data: respectively observing corresponding data of the drill holes by using a monitoring device; a group hole water pumping test is carried out on the mine to obtain a mine underground water flow field form, observation data are collected in real time in the water pumping process, and water pumping test data are obtained; and water release test: carrying out cohesive soil compaction water release test on the cohesive soil undisturbed sample in a high-pressure state by adopting special equipment. The cohesive soil data are obtained through special drilling, the foundation is laid for follow-up analysis, the dynamic state of the cohesive soil is mastered in real time through data monitoring, the basis for studying the characteristics and change rules of the cohesive soil is built by combining the data with the special drilling data, the interaction between underground water and the cohesive soil is studied through a water pumping test, and key support is provided for prediction.

The invention discloses a solanaceous vegetable seedling cultivation device and method, and belongs to the technical field of vegetable seedling cultivation, the solanaceous vegetable seedling cultivation device comprises a cultivation box, a spraying assembly, an automatic soil loosening and water releasing assembly and a carbon dioxide releasing assembly, a seedling box is installed in the cultivation box, and a plurality of cultivation grooves are formed in the seedling box; a water source is conveyed to a spraying pipe through a conveying pipe and a connecting pipe through a water pump, water is accurately sprayed to root areas of seedlings in the seedling raising box through spraying holes, the seedling raising box is arranged in the seedling raising box, the seedling raising box is arranged in the seedling raising box, and the seedling raising box is arranged in the seedling raising box. After the water absorption pad is in contact with water of expanded vermiculite particles in the expansion chamber, the water absorption pad expands to drive a soil loosening plate and soil loosening teeth to move through a sliding rail II and a sliding block II, so that the soil loosening teeth perform reciprocating soil loosening on the soil, gaps are directly generated in the soil, sufficient air is provided for the soil, the respiration of plant roots is promoted, and the soil loosening effect is improved. Tedious manual soil loosening and damage to root systems are avoided.

Compositions including a hardness agent, a water releasing agent, and a complexing agent and golf ball cores made from such compositions having a tailored hardness gradient are disclosed. The type and concentration of the components in the composition affect the hardness, hardness gradient, and compression of cores made from the composition and, thus, can be used to produce a golf ball having desirable performance characteristics.

The invention relates to the technical field of flow field dynamic simulation, and particularly provides a drainage test data fused underground water flow field dynamic simulation method and system near a fault, and the method comprises the steps: generating a fault three-dimensional water conductivity parameter field according to transient water level response data of a monitoring well in a drainage test; realizing conversion of dynamic data of the exploration method to a fault non-uniform quality model; integrating migration path data of a tracing test, fracture network geometric data of ultrasonic logging and a fault three-dimensional water conductivity parameter field, and constructing a heterogeneous graph structure taking a fault as a core node; establishing association between the multi-modal exploration data and the dynamic representation of the fault structure; and outputting a high-resolution spatio-temporal evolution graph of the flow field parameters of the fault disturbance area in the future period, and realizing dynamic visual closed-loop feedback of the flow field near the fault driven by real-time data of the exploration method. The system comprises a data conversion module, a representation association module and a closed-loop feedback module. According to the invention, a breakthrough from static description to dynamic simulation of the flow field near the fault is realized.

To provide a filter capable of reducing pressure loss at time of air passing.SOLUTION: A filter in which a metal-organic framework is supported on a substrate, wherein the filter that has undergone a specific pretreatment (a) and a water adsorption treatment (b) satisfies the following requirements (R1) and (R2) when air at high temperature and low humidity is passed through it at a predetermined airflow rate. Requirement (R1): Obtain graph P, where the horizontal axis represents time (seconds) and the vertical axis represents the cumulative amount of water desorbed per gram of filter (g), and graph Q, where the horizontal axis represents time (seconds) and the vertical axis represents the temperature (°C) of the air downstream of the filter, grasp the time t (seconds) at which the air temperature downstream of the filter reaches its lowest point T on graph Q, and the absolute value of the slope of the straight line connecting the point (t, P(t)) on graph P at time t and the origin is 9×10-4 or greater. Requirement (R2): The cumulative amount of water desorbed after 600 seconds is 0.133 g or more per gram of filter.SELECTED DRAWING: None

Apparatuses and methods for providing carbon dioxide direct air capture (DAC) systems to improve energy efficiency, operability, and economic performance of DAC technologies based on several types of approaches including temperature swing adsorption (TSA), pressure swing adsorption (PSA), and moisture swing adsorption (MSA) are disclosed. In particular, DAC apparatuses including a first water extraction unit, a process unit comprising a second water extraction unit, a carbon dioxide capture unit, and a water release unit are disclosed. The present disclosure also provides a logic control system for a preconditioner for the proposed DAC apparatus, including a controller, and one or more control elements in communication with the fluid streams, where the controller is configured to adjust temperature, water content, or combination thereof of the second fluid stream, third fluid stream, or both to pre-determined ranges based on the cost to capture carbon dioxide on a net removal basis.

The invention discloses a control method of a solar power plant and a related device, and relates to the technical field of electric energy conversion, and the solar power plant comprises a controller, solar power generation equipment, a water release valve, a water storage pool, a generator and a photovoltaic standby battery. According to the method, the historical power generation data, the historical power consumption data, the historical weather forecast and the future weather forecast are combined, and various factors influencing the solar power generation quantity and the power consumption are fully considered, so that the prediction accuracy and reliability are improved. According to the scheme, when the situation of insufficient power supply possibly occurs in the future based on the prediction result, the water stored in the water storage tank is utilized to generate power and the power is stored in the photovoltaic standby battery, so that when the power supply is insufficient subsequently, the power can be supplied to the local power grid timely and stably by utilizing the timeliness and the stability of the output electric energy of the photovoltaic standby battery, and the power supply efficiency is improved. Therefore, the power generation insufficiency of solar power generation equipment is made up, and the power demand of a local power grid is met.

Reservoir is an important way for human to modify nature, CO2 accounts for 4% of manual emission, and CH4 is as high as 20%. According to the reservoir operation characteristics and the sediment greenhouse gas generation rule, CO2 and CH4 generated by sediment are obviously released in the water release period, and annual greenhouse gas emission of the reservoir mainly comes from the period. Therefore, the invention relates to a device and a measuring method for accurately quantifying greenhouse gas emission in the water level descending process, and technical support is provided for reservoir carbon circulation. A device for measuring water-gas interface greenhouse gas in the water level descending process comprises a cylindrical body, a graduated scale is arranged on one side of the cylindrical body, a foam plate is installed on the inner wall of the cylindrical body and communicated with a water pumping opening, the water pumping opening is connected with an inlet of a TPU pipe, and one end of a water pump is connected with an inlet of a water quality analyzer and an inlet of a water-gas separation device in parallel. And a gas outlet of the water-gas separation device is communicated with a gas analyzer.

The present invention provides a lightweight coal gangue functional aggregate, a preparation method thereof, and an application thereof. The lightweight coal gangue functional aggregate of the present invention comprises coal gangue, fly ash, rice husk ash, and MnO₂. Among them, coal gangue, as the main raw material, realizes the resource utilization of solid waste and greatly reduces the production cost of lightweight aggregate from the raw material cost; fly ash is a corrective raw material used to adjust the ratio of the fluxing components and refractory components of the raw materials; the compounded rice husk ash and MnO₂ are used as pore-forming agents, which can increase the porosity of the lightweight aggregate. The lightweight coal gangue functional aggregate of the present invention has excellent properties such as lightweight, high strength, high water absorption, and slow water release. It can not only realize the large-scale utilization of solid waste, conform to the national green sustainable development strategy, but also make up for the shortage of natural lightweight aggregate resources, and at the same time realize the internal curing effect on UHPC, thereby reducing the early shrinkage and cracking of UHPC and improving the mechanical properties and durability of UHPC.

The utility model belongs to the technical field of condensate water discharge, and provides an automatic high-temperature and high-pressure steam condensate water release device which comprises a tank body, a tank cap, a buoy cap, a buoy barrel, a flow guide block, a positioning frame and a mechanical valve, a support is arranged below the tank body, a drain outlet is formed in the bottom of the tank body, and a water outlet is formed in the side portion of the tank body; the tank cap is in butt joint with the top of the tank body to form a condensate water release cavity, and a water inlet is formed in the side portion of the tank cap. The buoy cap is arranged in the tank cap, the bottom of the buoy cap horizontally protrudes outwards to form an eaves board, the eaves board corresponds to the joint of the tank body and the tank cap, and a falling hole is formed in the surface of the eaves board; the buoy barrel is vertically arranged in the tank body corresponding to the buoy cap, and the center of the bottom of the buoy barrel extends downwards to form a connecting rod. The device can completely replace manual work to automatically discharge condensate water in the still kettle, time and labor are saved, risks caused by misoperation can be completely avoided under the condition that no manual work participates, and naturally, the personal safety of workers cannot be threatened.

An air duct system with a sorption material has a blocking and guiding system which allows a normal operating state of the air duct system without use of the sorption material and a sorption state. The sorption state helps to reduce the drying time and the energy consumption. The air duct system is used in a domestic appliance, such as a laundry dryer or a dishwasher for laundry. The water released during the regeneration of the sorption material can be used for the next washing cycle. Furthermore, a method of operating the air duct system and a computer program for a domestic appliance are disclosed.

The utility model belongs to the field of coal mine drilling blowout prevention holes, and aims to solve the problems that water and coal cinder in a hole easily and directly enter a main pipeline, gas fluctuation is easily caused by opening small negative pressure, and hidden dangers are caused to production efficiency and production safety in a traditional gas-water separation device. The utility model provides a common drill four-hole gas-water separator which comprises an upper-layer barrel, a lower-layer barrel and a pipeline connected between the upper-layer barrel and the lower-layer barrel. The upper surface of the upper-layer barrel body is provided with a pipe orifice for connecting a main pipeline negative pressure, an orifice blowout preventer, an orifice standby negative pressure and a hole wall standby negative pressure; the lower-layer barrel is located at the lower end of the upper-layer barrel, a second valve is arranged at the bottom of one side of the lower-layer barrel, and a first valve is arranged on a pipeline between the upper-layer barrel and the lower-layer barrel. The device is high in reliability, the problem that water and coal slag enter an extraction system in the drilling machine construction process can be effectively solved, and gas fluctuation caused by water drainage is avoided.

The present invention relates to the field of hydrogeology and discloses a method for predicting the water inflow of mine pits suitable for being covered by cohesive soil, which comprises the following steps: special drilling: monitoring boreholes are drilled in the mine, and undisturbed samples of cohesive soil at different positions are taken respectively, so as to obtain cohesive soil data; data monitoring: using monitoring devices to respectively observe the corresponding data of the boreholes; pumping test: a group of borehole pumping tests are carried out on the mine to obtain the shape of the groundwater flow field of the mine, and at the same time, observation data are collected in real time during the pumping process to obtain pumping test data; water release test: a special device is used to carry out a high-pressure compaction water release test on the undisturbed sample of cohesive soil. Obtaining cohesive soil data through special drilling lays a foundation for subsequent analysis. Data monitoring grasps the dynamics of cohesive soil in real time and combines with the data of special drilling to build a basis for studying its characteristics and variation laws. The pumping test studies the interaction between groundwater and cohesive soil and provides key support for prediction.

The present invention provides a toughened, crack-resistant and corrosion-resistant solid waste concrete and a preparation method thereof. Cement, fly ash, slag and natural aggregate are mixed; water, a weakly alkaline regulator and an admixture solution containing a polycarboxylic acid water reducer are successively added to obtain a concrete slurry; and the concrete slurry is obtained after curing. The present invention uses fly ash, slag solid waste and natural aggregate as aggregates, adds a water reducer to reduce the water consumption of concrete, improves the fluidity of concrete, and introduces a special weakly alkaline regulator particle, and utilizes its self-absorption and water-release behavior and "bridging" effect to enhance the early and late continuous hydration ability of the adhesive in the concrete, the effect of resisting autogenous shrinkage and drying shrinkage, improve the compactness and anti-corrosion performance of the concrete, and then improve the crack resistance of the all-solid waste concrete. The obtained test piece has no cracks on the surface, the 28d compressive strength reaches 46.6MPa, the 28d flexural strength reaches 8.5MPa, the autogenous shrinkage rate is 0.035%, and the drying shrinkage rate is 0.01%.

The invention discloses a tree seedling growing root system soil water retention device, and particularly relates to the technical field of tree seedling growing, the tree seedling growing root system soil water retention device comprises a silica gel groove pad, a seedling growing container, a plurality of fixing blocks and a seedling growing water retention assembly; wherein the seedling culture water retention assembly comprises supporting sheets, long water absorption spiral gel strips, inclined blocks, inclined supporting sheets, short inclined water absorption spiral gel strips, bottom blocks, cotton threads, a plurality of spaced inclined blocks and spaced water absorption spiral gel strips. The seedling culture water retention assembly has the advantages that multi-dimensional water absorption is conducted on forest seedlings in a humid environment, multi-directional water release is conducted in a dry environment, the release contact area is wide, the multi-dimensional water retention requirement of roots is met, the root water environments in different directions are maintained, and the forest seedling culture quality is improved; therefore, the problems that the multi-directional water retention requirement of the root system is difficult to meet, the water retention effect of forest seedling is poor, the moisture environment required by the root system is difficult to effectively maintain, and the forest seedling quality is affected are solved.

The application provides a phase change temperature control internal curing function aggregate for high-strength concrete and a preparation method thereof, and relates to the technical field of building materials. A phase change material paraffin is arranged in an inner layer, and a heat conduction water storage layer composed of carbon fibers, graphite powder, superabsorbent resin, fly ash, phosphorus slag powder, slag powder, quicklime, polyacrylamide, clear lime water and an additive is coated on the outside to form aggregate granulation and molding. The carbon fibers are connected to the dispersed graphite powder to form a heat conduction net structure with line connection points, improve the heat conduction performance, promote the heat conduction between the internal paraffin and the external environment, and the clear lime water activates the fly ash, the phosphorus slag powder and the slag powder in the ingredients to generate a hydration reaction, thereby constructing the strength of the external structure. When the temperature in the concrete is low, heat is released, the whole process is accompanied by slow water release, the double internal curing functions of temperature control and moisture are realized, the cracking of high-strength concrete caused by high hydration heat and large shrinkage is avoided, and the durability of the high-strength concrete is improved.

The utility model discloses a soaking device for grain processing, and relates to the field of grain processing. Through the arrangement of the scale groove, a user can accurately control the water injection amount and release the water amount, and through the arrangement of the overflow port, the flow guide plate, the sealing strip, the lifting gate, the threaded sleeve, the flow guide groove, the water outlet, the threaded rod, the handle and the fixing block, the user can reduce the height of the lifting gate by rotating the threaded rod, so that the lifting gate is more convenient to use. Meanwhile, a storage box, a filter screen, a flow guide groove and a water outlet are arranged, so that the released suspended matters can be filtered by the filter screen and collected in the storage box, a user can conveniently clean the suspended matters, and the filtered water can be discharged from the water outlet along the flow guide groove, so that the suspended matters on the top layer of the soaking device main body can flow out from the water outlet along with the water flow; and suspended matters can be easily cleaned, so that the working efficiency is improved, the working intensity is reduced, and meanwhile, the smooth proceeding of the subsequent processing process and the purity of grains are ensured.

The utility model discloses a power plant heat pipeline hot water collection subassembly, including fixed link, the outer wall of fixed link is installed with the connecting water pipe, and the outer wall of connecting water pipe is provided with control valve, the lower portion of fixed link is provided with the collecting pipe, and the outer wall of connecting water pipe is through the collecting pipe, and the collecting pipe is used for collecting the hot water of connecting water pipe, the outer wall of collecting pipe is provided with the collecting mouth of being located below control valve, and the collecting mouth is used for collecting the leakage of control valve. Through setting up the collecting pipe, when the power plant heat pipeline is used daily, the hot water can be collected, improve the effect of hot water collection recovery when the power plant heat pipeline exhaust, water quality sampling, water release operation, reduce the water resource waste condition, through the connection of fixed block and hinge, rotate the turnover board, make the collecting mouth expose in the outside setting, when the hot water appears leakage, automatically drop into the collecting pipe, reach the effect of concentrated collection to the hot water of power plant heat pipeline and prevent the hot water leakage drop.

The invention relates to a method for improving the dewatering performance of organic sludge by using a polyether demulsifier, and belongs to the technical field of municipal sludge treatment. The epoxyethane / epoxypropane block polyether is utilized to effectively destroy a stable oil-water emulsification system in the organic sludge, reduce interfacial tension and promote water release, and the dehydration performance of the organic sludge is remarkably improved by destroying an oil-water interfacial film structure. By utilizing the method disclosed by the invention, the dehydration efficiency of the organic sludge can be remarkably improved, the capillary water absorption time of the sludge and the specific resistance of the sludge are remarkably reduced, the Zeta potential of the sludge becomes closer to a positive value, the median particle size of the sludge is remarkably improved, and the water content of a sludge cake is greatly reduced; the method is easy and convenient to operate, existing dehydration equipment can be directly utilized, and extra investment is not needed; the adding proportion of the demulsifier can be optimized according to actual sludge characteristics, so that the medicament cost is saved; the method provided by the invention provides an economic and efficient technical scheme for organic sludge treatment and disposal, and sludge reduction and recycling can be promoted.

The utility model discloses an emergency guarantee system for a master control room of a nuclear power plant. The emergency guarantee system comprises a compressed air storage adjusting device, an air circulation filtering cooling device and a pressure relief device. The emergency guarantee system for the main control room of the nuclear power plant adopts compressed air as a power source, the compressed air can be stored through the compressed air storage adjusting device, when the system operates, the pressure of the compressed air can be adjusted within a required range, and certain negative pressure is generated by adopting the air ejector; and inducing exhaust of the nuclear power plant master control room to enter a circulating pipeline for filtering and cooling. Meanwhile, cold storage water is adopted as a hot trap, and when an alternating-current power supply of the nuclear power plant loses, the cold storage water releases cold energy to take away heat discharged in a main control room of the nuclear power plant. And the cold storage water tank is driven to flow to the cooling coil pipe by taking gravity as driving force, so that air flowing through the cooling coil pipe can be effectively cooled under the condition of power loss, and certain positive pressure of the main control room of the nuclear power plant and clean air of a corridor of the main control room of the nuclear power plant are maintained by arranging the pressure relief device.

The embodiment of the utility model provides a dissolved air nano oxygenation device for drainage basin treatment, which comprises a lifting water pump, a lifting pipeline, a water collecting tank, a booster water pump, a high-pressure water pipe, a dissolved air pressure tank, an air compressor, an air pipe and a nano dissolved oxygen water release pipe, and is characterized in that the lifting water pump conveys river water to the water collecting tank through the lifting pipeline; then the river water is pressurized and conveyed to the dissolved air pressure tank through the high-pressure water pipe by the booster water pump, meanwhile, the compressed and pressurized air is conveyed to the dissolved air pressure tank through the air pipe by the air compressor, and the air is dissolved in water under the action of pressure and is released back to the river channel through the nano dissolved oxygen water release pipe; wherein a plurality of micro-nano bubble release ports are distributed on the pipe wall of the nano dissolved oxygen water release pipe and are arranged in a wave shape. Through the scheme of the embodiment of the invention, the problem of how to efficiently and directly increase the dissolved oxygen content of the water body can be solved.

The utility model discloses water-saving irrigation equipment capable of preventing water source evaporation, which relates to the technical field of structures capable of preventing water source evaporation and comprises a water storage barrel, a water inlet blocking cover arranged at the upper end of the water storage barrel, a water level display component arranged at the side end of the water storage barrel, a water drainage component arranged at the lower end of the outer wall of the water storage barrel and a support frame welded at the bottom end of the water storage barrel. Through cooperation of the stirring impeller and the water discharging assembly, materials such as additives can be better scattered and mixed into water liquid, the water discharging speed is prevented from being regulated and controlled, and therefore the functions of mixing the material liquid and regulating and controlling the irrigation water flow are achieved; the water inlet blocking cover can be blocked, and then the functions of water level detection, rainwater collection controlled by a single chip microcomputer and evaporation loss prevention can be achieved; finally, the problem that evaporation loss is serious when an existing water source storage device achieves the rainwater collection function is solved.

The invention relates to the field of ultrahigh-strength concrete, in particular to low-viscosity low-shrinkage ultrahigh-strength concrete and a preparation method thereof. The low-viscosity low-shrinkage ultrahigh-strength concrete comprises the following substances in parts by weight: 30-50 parts of cement; 80 to 120 parts of basalt coarse aggregate; 60 to 80 parts of fine aggregate; 10 to 20 parts of water; 0.1 to 0.3 part of a water reducing agent; the basalt coarse aggregate is a porous basalt coarse aggregate with the pore diameter of 1-50 [mu] m and the porosity of 5-15%. The traditional aggregate is replaced by the porous basalt coarse aggregate, the density of the concrete is reduced and the aggregate-slurry interface bonding is optimized by utilizing the internal pore structure of the porous basalt coarse aggregate, and meanwhile, the proportioning range of the cement, the fine aggregate, the water and the water reducing agent is limited, so that high strength and low viscosity of the concrete under the low water-binder ratio are ensured. Due to the introduction of the porous aggregate, drying shrinkage can be reduced through pore water absorption-water release balance.

Disclosed herein is an apparatus and method for providing a direct air capture (DAC) system of carbon dioxide to improve the energy efficiency, operability, and economic performance of DAC technologies based on multiple types of methods, including thermal swing adsorption (TSA), pressure swing adsorption (PSA), and moisture swing adsorption (MSA). In particular, disclosed herein is a DAC apparatus comprising a first water extraction unit, a process unit comprising a second water extraction unit, a carbon dioxide capture unit, and a water release unit. The present invention also provides a logic control system for a preconditioner of the proposed DAC apparatus, comprising a controller and one or more control elements in communication with a fluid stream, wherein the controller is configured to adjust the temperature, water content, or a combination thereof of the second fluid stream, the third fluid stream, or both to a predetermined range based on the cost of capturing carbon dioxide on a net removal basis.

The utility model discloses a high-pressure karst water-rich large section highway tunnel drainage and pressure reduction device, which comprises pressure reduction assemblies arranged along the axis of the tunnel in a mirroring manner and a drainage unit communicated with the two pressure reduction assemblies, the drainage unit is used for draining flowing water generated by the two pressure reduction assemblies, and each pressure reduction assembly comprises a pressure control unit, a pressure control unit and a pressure control unit, the pressure control unit comprises a gravel blind ditch arranged at the position of a tunnel wall foot and extending in the direction away from the axis of the tunnel and a water gathering pipe arranged in the gravel blind ditch. The end, close to the tunnel, of the water gathering pipe is connected with a water pressure valve. The stabilizing unit comprises a plurality of positioning ribs evenly distributed on the peripheral side of the water pressure valve and a plurality of obliquely-arranged locking anchor rods, and the ends, away from the water pressure valve, of the positioning ribs and the ends, away from the water pressure valve, of the locking anchor rods are deeply buried in the rock stratum through concrete; water pressure can be released intelligently according to the water pressure condition, drainage is started automatically when the water pressure reaches a certain degree, the threat of the water pressure in a rock stratum to a tunnel lining structure is effectively reduced, and the lining structure is prevented from being broken down and damaged due to too high water pressure.

The disclosure provides a cross-river water diversion structure for collecting tail water and abandoned water downstream of a hydropower station, belonging to the technical field of hydraulic engineering. The water diversion structure comprises a water release gate, a drop well, a river-crossing box culvert, a tail water guiding assembly and an abandoned water guiding assembly. The water release gate is arranged in the tail water channel of the upper hydropower station and is used to cut off the tail water of the tail water channel of the upper hydropower station. The tail water guiding assembly is connected with the tail water channel of the upper hydropower station and is used to introduce the tail water cut off by the water release gate into the drop well. The abandoned water guiding assembly is connected with the stilling basin of the flood discharge tunnel of the upper hydropower station and is used to introduce the abandoned water of the stilling basin of the flood discharge tunnel of the upper hydropower station into the drop well. The drop well has a water outlet, and the river-crossing box culvert is connected to the water outlet and is located below the river channel and is used to introduce the water in the drop well into the water diversion system. The water diversion structure has the effects of improving the flood discharge safety of the upper hydropower station, reducing the disturbance to the ecological environment and reducing the construction cost.

The invention provides a novel quantitative calculation method for the debris flow sand retention rate of a wedge-shaped beam type grating dam, and belongs to the technical field of water retaining, drainage or release buildings in hydraulic engineering. The method comprises the steps that firstly, basic parameters are obtained; step 2, calculating a storage-capacity ratio; 3, designing the width of the opening; 4, building a water tank test device; and 5, constructing a sand retention rate prediction model to calculate the sand retention rate. According to the method, quantitative calculation of the debris flow sand retention rate of the wedge-shaped beam type grating dam is achieved through the logic process of field parameter measurement, dam body parameter calculation, opening width design and sand retention rate model construction.

The object of the present invention is to provide a processing method that makes it possible to improve various characteristics related to a fermented food or beverage that uses a protein ingredient (and, in particular, characteristics of the fermented food or beverage itself such as stress, water retention, suppression of water release, and the like or characteristics of the ingredients of the fermented food or beverage related to fermentation speed during production of the fermented food or beverage). The present invention improves various characteristics of a fermented food or beverage that uses a protein ingredient using the action of a protein deamidase and a multicopper oxidase during production of the fermented food or beverage.