1766 results about "Water discharge" patented technology

A pet water dispenser includes a water tank for storing liquid, an upper cover installed above water tank and having a sink and a water leakage opening communicating with water tank in surface, a water pump extending into or onto upper cover from lower part of water tank and having a water supply opening in surface above upper cover; water pump includes a first accommodating chamber internally having a motor which drives pump blades below first accommodating chamber to rotate through a rotating shaft, second accommodating chambers of which walls define a pump chamber with downwards-extended wall of first accommodating chamber; a centrifugal water pump formed by pump blades in pump chamber and matched motor and including a water inlet communicating with water tank, and a water discharging opening; a water supply channel formed by second accommodating chambers sequentially communicating with water discharging opening and water supply opening.

The invention aims to provide a thermal power plant water production workshop production scheduling optimization method and device, and the device comprises a rolling time domain prediction module, a multi-source data fusion module, a multi-target optimization decision module, and a closed-loop feedback control module. The problems that in existing production scheduling, multiple factors are not fully and comprehensively considered, so that the water production cost is high, production arrangement is unreasonable, night shift production scheduling cannot be effectively reduced and the like are solved, maximization of water production economic benefits is achieved, and safe production is guaranteed. The invention provides an intelligent water production and production scheduling system and method for demineralized water of a thermal power plant. Water production cost minimization and production safety collaborative optimization are achieved through data fusion, prediction optimization and dynamic closed-loop control.

The invention discloses a drainage farmland underground water burial depth prediction method and system, and belongs to the technical field of agricultural prediction. Obtaining daily actual evapotranspiration, lateral displacement and groundwater burial depth prediction values through physical process model simulation; determining an actual absolute error of a daily groundwater burial depth predicted value output by the physical model, determining a daily moisture balance intermediate variable, taking the daily moisture balance intermediate variable and the groundwater burial depth predicted value as input variables, and performing training according to the corresponding actual absolute error to obtain an absolute error prediction network; according to the absolute error prediction network, the predicted value of the absolute error is obtained and serves as the correction amount, the groundwater burial depth predicted value obtained through physical process model simulation is corrected, the corrected groundwater burial depth predicted value is obtained, and the method can more accurately and reliably simulate GWD dynamic changes under different drainage conditions.

The utility model relates to a membrane filtration system which comprises a water collecting pipeline and a membrane filtration device installed on the water collecting pipeline, the membrane filtration device is provided with a membrane element, and the water collecting pipeline comprises a water production header pipe, a water inlet header pipe and a water drainage header pipe which are arrayed in the same plane in the horizontal direction and are provided with closed upper ends and open lower ends; the water production manifolds are symmetrically communicated with the two sides of the water production header pipe and are rigidly connected with the water inlet header pipe and the water drainage header pipe respectively; the water inlet manifolds are symmetrically communicated with the two sides of the water inlet header pipe and are rigidly connected with the water production header pipe and the water drainage header pipe respectively; the drainage manifolds are symmetrically communicated with the two sides of the drainage main pipe and are rigidly connected with the water inlet main pipe and the water production main pipe respectively; a penetrating fluid outlet communicated with the water producing manifold, a pretreatment liquid inlet communicated with the water inlet manifold and a concentrated liquid outlet communicated with the water discharging manifold are formed in the membrane element. The manifolds and the membrane elements are installed in a simplified and matched mode, the manifolds and the header pipe are supported by each other through rigid connection, and the auxiliary fixing structure is simplified.

The invention provides fire extinguishing spraying equipment which comprises a stator and a rotor arranged outside the stator, a water flow channel is designed in the stator, a connector capable of rotating around the stator is movably connected to the lower end of the stator, a nozzle is connected to the connector, and the connector or the nozzle is in transmission connection with the rotor. And the rotor can drive the nozzle to rotate in a rotating state. Spraying equipment is designed to be of a rotatable positioning water outlet structure, original fixed blasting type fire extinguishing spraying is innovated and upgraded, more accurate fire extinguishing is achieved, the spraying equipment is improved, the fire spreading risk is reduced, the fire prevention and extinguishing capacity of a defense area is greatly improved through application of the technology, and the device is simple in structure, good in durability and high in practicability. And the practicability and the chemical degree are high.

The invention discloses a rainstorm ground waterlogging prediction method, device, equipment and product, and relates to the technical field of urban waterlogging prediction.The rainstorm ground waterlogging prediction method comprises the steps that ephemeris and ground observation station data are obtained, the atmospheric moisture delay amount and the high-altitude water vapor conversion factor are calculated respectively, the historical water vapor content is calculated, and the future atmospheric precipitable water amount is predicted; rainfall time distribution data are obtained through rainstorm intensity decomposition; calculating the rainwater overflow amount of the catchment area in combination with the water discharge amount time distribution data of the urban drainage pipe network; and iterative calculation is carried out by using a digital elevation model grid to obtain the waterlogging depth, and waterlogging early warning information is sent out. By constraining the total rainfall amount, the rainfall amount can be effectively constrained by predicting the precipitable water amount based on the satellite ephemeris; the underground pipe network drainage is restrained, and a water flow condition in a pipe channel is simulated by adopting an SWMM model; and finally, the waterlogging accumulated water volume is calculated, constraint verification is carried out on each link of urban waterlogging, and relatively high precision and relatively long timeliness are ensured.

The invention relates to the technical field of offshore wind turbines, in particular to an installation and recovery method of a submersible mud floating type offshore wind turbine system. The method comprises the following steps: S1, mounting stage of wet-mopping auxiliary units: mounting at least two wet-mopping auxiliary units on the periphery of the submersible mud floating type offshore wind turbine; s2, the transportation stage of the wet dragging auxiliary units, wherein a tugboat is fixed to two of the wet dragging auxiliary units through a dragging cable, and the water filling and discharging amount of each buoyancy compartment is controlled through an air-water replacement valve in the transportation process; s3, a dismounting stage of the wet mopping auxiliary units: after a destination is reached, power sources and control sources of all the wet mopping auxiliary units are closed, and fixation of the submersible mud floating type offshore wind turbine and the wet mopping auxiliary units is relieved; s4, the installation stage of the submersible mud floating type offshore wind turbine; S5, the recovery stage of the submersible mud floating type offshore wind turbine; and S6, the steps S1 to S3 are executed repeatedly. According to the technical scheme, the problem that a traditional wet mopping mode is limited in operation under severe sea conditions can be solved, installation is easy and convenient, and cost is low.

The invention provides an anchor-plate-injection collaborative supporting method for active water sealing. The anchor-plate-injection collaborative supporting method is applied to various laneways penetrating through water-containing stratums, especially to construction of vertical shafts constructed through a freezing method. During freezing method construction, a freezing wall is formed firstly, a section height is excavated, an anchor rod is drilled and constructed after the section height is excavated, and if water exists after excavation, forced drainage needs to be carried out to enable the displacement to be larger than the water inflow so as to ensure that no accumulated water exists on a working face; the steel plates are fixed through anchor rods, so that grouting gaps are formed between the steel plates and the well wall; a gap between the bottom edge of the steel plate and the well side is blocked by a certain height through foam; grout is injected through a grouting pipe on the lower portion of the steel plate, and a primary supporting structure is formed after solidification; secondary and more supporting can be carried out immediately or after primary supporting of multiple section heights is formed, and a permanent supporting structure is formed. A traditional passive waterproof mode is broken through, and active water plugging can be achieved; the method adapts to various construction methods and stratums; the temporary support is essentially different from a traditional anchor-shotcrete net temporary support, and the construction efficiency is higher.

The invention belongs to the technical field of mine engineering, and particularly discloses a dynamic simulation method for water inflow attenuation in the construction process of a water cut-off curtain of a strip mine. The method comprises the following steps: acquiring meteorological data according to the position of a strip mine, acquiring a hydrogeological structure in combination with drilling data, acquiring hydrogeological parameters by using a water pumping test, and acquiring a source convergence item according to water pumping and drainage; the method comprises the following steps: constructing a hydrogeological model by adopting MODFLOW-USG, constructing a mine pit drainage mathematical model and a mine pit drainage model, setting source sink items and boundary conditions, and realizing dynamic simulation based on python; a PEST calibration model is adopted, parameters are subjected to standardization processing, a random forest substitution model is constructed, SHAP values of all the parameters are analyzed and calculated and normalized to obtain global importance indexes, and the model is optimized; and evaluating the optimized model by adopting NSE, KGE and RMSEs. The method has the advantages of being high in model precision, clear in parameter physical significance and capable of being corrected with measured data in real time.

The invention provides an efficient softening and hardness-removing process for a high-hardness water body, which is applied to the technical field of water body purification. The efficient softening and hardness-removing process comprises a pretreatment mechanism, a softening reaction mechanism, a flocculent precipitation mechanism and a sludge closed-loop treatment mechanism which are sequentially connected along a water body treatment flow direction, the efficient softening and hardness-removing process for the high-hardness water body comprises the following raw water treatment steps: S1, treating raw water by virtue of the pretreatment mechanism, so as to obtain ultrafiltration effluent; and S2, the ultrafiltration effluent enters the softening reaction mechanism, and under the control of the electric cabinet control mechanism, chemicals are added for softening and flocculation reaction. The total hardness removal rate can reach more than 90% through accurate addition of the medicament, two-stage pH control and optimization of reaction conditions, which is far superior to that of a traditional resin ion exchange method, the influence of high-hardness water discharge on receiving water is reduced, ecological and health problems caused by excessive hardness of the water are avoided, and the harsh requirements of industrial production and environmental protection on soft water are met.

A ductless mobile air conditioner, comprising a condenser and a water sprinkling assembly. The water sprinkling assembly comprises a water tank, a water pump and a sprinkling member, wherein the water pump is configured to convey water in the water tank to the sprinkling member, the sprinkling member is provided with a plurality of water output holes, and the sprinkling member is arranged above the condenser such that water discharged from the water output holes can drop onto the condenser. The ductless mobile air conditioner has a conventional working state in which the water pump is configured to work alternately between starting and stopping. The design of the water pump to work alternately between starting and stopping can ensure the service life of the water pump.

The invention relates to the technical field of wastewater treatment, and discloses a heavy metal wastewater treatment method and system.The method comprises the steps that the concentration, pH value, temperature and conductivity data of heavy metal ions are collected in real time through multiple types of sensors arranged in a wastewater pipe network and a treatment station, and standardized treatment is conducted; inputting the standardized data into a prediction algorithm unit, executing multi-parameter fusion analysis, and generating a concentration prediction result and a processing agent dosage; the coagulation reactor and the sedimentation tank are controlled to operate according to the prediction result, and chemical sedimentation and concentration of the heavy metal ions are achieved; the treated wastewater is deeply purified through adsorption, ion exchange and filtering processes, the final discharged water quality is obtained, the treatment efficiency is fed back, and closed-loop optimization control is formed. The system comprises a data acquisition and pretreatment module, a prediction and addition control module and a reaction and purification execution module, can realize automatic and intelligent optimization control of the wastewater treatment process, and remarkably improves the effluent standard-reaching rate and the system stability.

The utility model provides a swimming pool cleaning robot, and relates to the technical field of swimming pool cleaning. The swimming pool cleaning robot comprises a main body, a water absorption assembly, a walking assembly, a transmission assembly and a front rolling brush, the walking assembly comprises front walking wheels and a driving assembly, the front walking wheels are arranged close to the front end of the main body, the front rolling brush has a first state and a second state, and in a robot pool wall cleaning mode, when the main body moves to a pool wall, the driving assembly drives the front walking wheels to rotate. The water discharge amount of the water absorption assembly is reduced or closed until the driving assembly drives the front rolling brush to be switched from the first state to the second state. According to the swimming pool cleaning robot provided by the invention, the situation that the contact area between the front rolling brush and the to-be-cleaned surface is reduced after the front rolling brush encounters the pool wall and the head upwarps can be avoided, and particularly when the swimming pool cleaning robot is switched to the pool wall from the pool bottom, the contact area between the front rolling brush and the to-be-cleaned surface can be effectively increased according to the technical scheme, so that the cleaning efficiency of the swimming pool is improved. And a dead angle area between the pool bottom and the pool wall is better cleaned, so that the overall cleaning effect is improved.

The invention relates to a green and environment-friendly deep sea mineral conveying system without tail water being discharged to the ocean. The green and environment-friendly deep sea mineral conveying system comprises a tail water circulating system and a mineral conveying system. The tail water circulating system comprises a tail water pump, a tail water pipe and a tail water collecting device; the mineral conveying system comprises an ore pulp pump, a mineral conveying vertical pipe and a relay cabin; one end of the draft tube is connected with the tail water pump, and the other end of the draft tube is connected with the tail water collecting device; the ore pulp pump is connected to the ore conveying vertical pipe in series, the ore conveying vertical pipe is hung on the water surface mining ship in a suspended mode, and the relay cabin is arranged at the tail end of the ore conveying vertical pipe. The relay cabin is connected with the mining vehicle through a hose; the tail water collecting device, the mixing cabin, the ore conveying vertical pipe and the mining ship are sequentially communicated to form a tail water internal circulation path, and no tail water is discharged to the ocean in the ore conveying process. Through fusion design of the tail water discharge pump, the tail water discharge pipe, the tail water collection device and the mineral conveying system, circulation of deep-sea mining tail water in the conveying system is achieved, and the tail water can be prevented from being discharged to the sea.

The utility model provides a water outlet device capable of discharging different water from the same hole. The water outlet device comprises a body, a water inlet assembly, a water distribution assembly and a water outlet assembly. The water distribution assembly comprises a water distribution body provided with a first water flow channel and a second water flow channel, and a switching piece used for communicating at least one of the first water flow channel and the second water flow channel with the water inlet assembly. The water outlet assembly is provided with a first water inlet hole and a second water inlet hole which are respectively communicated with the first water flow channel and the second water flow channel; the mixing cavity is simultaneously communicated with the first water inlet hole and the second water inlet hole; the water outlet assembly comprises a first water nozzle and a second water nozzle, and the first water nozzle and the second water nozzle are basically coaxial or basically parallel to each other; the mixing cavity is formed in the second water nozzle, the first water inlet hole is formed in the first water nozzle, and the second water inlet hole is formed in the second water nozzle.

The utility model discloses an underflow type energy dissipation structure, and belongs to the technical field of water conservancy project energy dissipation structures, and the underflow type energy dissipation structure comprises a drainage pool body, an energy dissipation pool body arranged at the right end of the drainage pool body and an apron arranged at the right end of the energy dissipation pool body which are sequentially arranged in the water flow direction; a plurality of first energy dissipation plates are arranged at the top of the discharge pool body, a plurality of energy dissipation ridges are arranged at the top of the energy dissipation pool body, a plurality of water drainage pipes are arranged at the bottom of the inner wall of the energy dissipation pool body, a plurality of second energy dissipation plates are arranged at the top of the apron, a plurality of counter holes are formed in the discharge pool body, and a plurality of suck-back holes are formed in the apron. A backflow pipeline used for discharging flow is arranged on the flow discharging pool body, the opposite flushing holes and the suck-back holes are communicated with the backflow pipeline, a water discharging pool body is arranged at the bottom of the energy dissipation pool body, and the backflow pipeline is communicated with the water discharging pool body. The underflow energy dissipation structure has the effect of improving the energy dissipation effect of the underflow energy dissipation structure.

The invention provides a drainage system anomaly positioning method, device and equipment based on a penetration map. The method comprises the following steps: acquiring structural data, water quality detection data and drainer information of a drainage system; performing mapping processing on the structure data and the drainage user information to obtain pipe point topological data and pipeline topological data; according to the adjacency relation and the flow direction, analyzing the pipe point topological data and the pipeline topological data to obtain first pipe network topological data; according to the water quality detection data, mixed connection point identification processing is conducted on the first pipe network topological data, and second pipe network topological data with mixed connection point marks are obtained; performing relation integration processing on the second pipe network topology data to obtain drainage mapping data; carrying out connection relation construction on the drainage mapping data and the structure data to obtain drainage system penetration map data; and positioning the abnormality of the drainage system according to the drainage system penetration map data. According to the scheme, rapid positioning of a pollution source of abnormal water outlet of the discharge outlet is realized.

The present invention relates to the technical field of fish reproduction and release facilities, and specifically to an ecologically simulated fish fry wilding training fishway and a wilding training method. A water reservoir, a water supply unit, a return water unit, a fishway body, and an inlet fishway; the water supply unit is used to supply water from the water body to the water reservoir; one end of the fishway body is connected to the water reservoir through a water discharge valve, and the other end of the fishway body is connected to the water body through an inlet fishway; a water retaining gate is provided on the inlet fishway; a first resting pool, a second resting pool, and a third resting pool are provided in the fishway body; a number of stone steps are provided on the fishway body; and at least two water retaining steps are also provided. In response to the technical problem of low survival rate of released fry, the present invention is more in line with the characteristics of the wild habitat of released fish, and can train the fry's ability to adapt to natural water bodies by adjusting the flow rate and flow rate in the fishway body, meet the needs of fish wilding training, and also meet the needs of zoned breeding in the fishway body at the same time.

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.

The invention discloses a drainage pipe network displacement regulation and control method and system and a storage medium, and belongs to the technical field of urban drainage management. The method comprises the following steps: constructing a topological structure model of a drainage pipe network in a target area; acquiring the flow velocity and pressure of each node on the topological structure model to construct a pressure wave calculation model; determining the total pressure of each node according to a pressure wave calculation model; determining the displacement of each node according to the total pressure of each node; determining the water level of each node according to the displacement of each node; determining the maximum safe displacement of each node according to the total displacement of all nodes of the drainage pipe network within the target duration and the water level of each node; and adjusting the displacement of a pump station on the upstream of the drainage pipe network according to the maximum safe displacement of each node. By simulating the propagation and superposition effect of the pressure waves, global optimization regulation is realized, the problem of downstream overflow caused by upstream drainage is avoided, and the operation efficiency and safety of the drainage pipe network are improved.

The invention provides a layered soft soil thermal drainage consolidation test method considering an interface contact thermal resistance effect, which comprises the following steps: S11, filling layered soft soil into a soil sample box according to a design thickness layer by layer, laying a heat conduction film between layers, and connecting a heat flow meter; s12, applying a preset pressure to compact the soil body, starting the heating base, raising the temperature according to a set gradient, and synchronously monitoring the thermal resistance of each layer; s13, when the temperature reaches a set value, a vacuum pump is started to maintain the preset vacuum degree, the heating power is automatically adjusted through a control algorithm based on the real-time heat flow data, and the interface thermal resistance change is compensated; s14, synchronously acquiring temperature, pressure, vacuum degree and displacement data, and establishing a heat-water-force coupling model to invert interface thermal resistance parameters; and S2, based on the interface thermal resistance parameters obtained in S1, executing a thermal drainage consolidation test stage. The problems that in the prior art, due to the fact that the interface contact thermal resistance effect is not fully considered, heat conduction efficiency evaluation is deviated, and consolidation process prediction is inaccurate are solved.

The utility model relates to the technical field of secondary water supply, in particular to a residual chlorine supplementing system of a secondary water supply system, which comprises a water tank and a chlorine adding system. The water tank is provided with a water inlet and a water outlet, the chlorination system is communicated with the water inlet of the water tank through a first pipeline and is communicated with the water outlet of the water tank through a second pipeline, a first valve is arranged on the first pipeline, and a second valve is arranged on the second pipeline; one side of the water tank close to the water outlet is connected with a concentration detector. The device has the effect that the chlorine content of water discharged from the water outlet end of the water tank meets the standard.

The invention discloses a clear water circulation intelligent scheduling method and system based on water environment situation driving, and the method comprises the steps: carrying out the automatic model configuration based on a multi-mode automatic selection algorithm driven by the water environment situation, and driving the running water scheduling simulation; online simulation calculation of clear water circulation forecasting scheduling and forecasting and early warning of clear water circulation are achieved; a clear water loop scheduling decision-making platform is established by combining a WebGL visualization technology with a WebGis technology, and refined simulation rehearsal of various scheduling scenes on a three-dimensional terrain is realized; through a clear water circulation multi-target scheduling decision scheme optimization method, according to a clear water circulation scheduling result, optimization of a plurality of scheduling schemes is realized, factors such as water change amount, engineering operation time, gate water discharge amount, pump station water diversion amount and the like are brought into an evaluation index system, and a clear water circulation multi-target scheduling decision scheme which not only meets the clear water circulation requirement but also meets the water circulation requirement is optimized. The scheduling time can be saved to the greatest extent, the cost is reduced, and the experience judgment error of a scheduling decision maker is reduced.

To provide a cooling system for a firefighting robot that maximizes the efficiency of water spraying activities while ensuring continuous operation in high-temperature environments. [Solution] The robot comprises a water supply unit that receives water supplied from an external water source, a water flow distribution means that distributes the water supplied from the water supply unit for water spraying and cooling, a water discharge means that discharges the distributed water for water spraying toward the fire site, a cooling circulation circuit that circulates the distributed cooling water to heat-generating components inside the robot, a flow control means that controls the flow rate ratio for water spraying and cooling in the water flow distribution means, a temperature sensor that detects the internal temperature of the robot, and a control device that controls the flow control means based on a signal from the temperature sensor.

The embodiment of the invention provides a water and sediment concentration and water quality multi-index automatic monitoring and analyzing device for a southern Xinjiang canal system, and relates to the technical field of environment monitoring. Comprising a steel rope connecting ring, the outer wall of the steel rope connecting ring is rotatably connected with a collecting frame, and the bottom of the collecting frame is fixedly connected with a counterweight circular plate. The rotating rod drives a driving bevel gear to rotate, the driving bevel gear drives a driven bevel gear and the rotating rod to rotate, the rotating rod drives a propeller to rotate, the propeller sucks water into a pressure suction cylinder through a filtering water inlet pipe so that the gravity of the device can be increased, redundant water is discharged out of a water discharging pipe, and through propelling force generated by discharged water flow, the water is discharged out of the water discharging pipe. The equipment can accelerate the settling velocity and quickly reach a predetermined detection water area, so that the sampling time is greatly shortened, and the working efficiency is also remarkably improved.

The invention provides an integrated nanofiltration combination device for high-quality drinking water treatment and a treatment method, and belongs to the technical field of water treatment. The problems of low utilization rate of water resources and high risk of concentrated water discharge in high-quality drinking water treatment of a nanofiltration technology are solved. The nanofiltration combination device comprises a water inlet tank, a nanofiltration module, a concentrated water tank, an ultrasonic disperser, an induced crystallization fluidized bed, a softening agent tank and an antisludging agent tank, the water inlet tank is connected with the nanofiltration module, a treated water outlet of the nanofiltration module is connected with a water outlet pipe, a nanofiltration concentrated water outlet of the nanofiltration module is connected with the concentrated water tank, and the antisludging agent tank is connected with the concentrated water tank. The concentrated water tank is connected with the ultrasonic disperser, the ultrasonic disperser is connected with a water inlet of the induced crystallization fluidized bed, the softening agent gallipot and the scale inhibitor gallipot are respectively connected with the induced crystallization fluidized bed, and a water outlet of the induced crystallization fluidized bed is connected with the water inlet tank. The device is mainly used for high-quality drinking water treatment.

The utility model discloses a condensate water recovery device of an evaporation crystallizer, and relates to the technical field of evaporation crystallizers. The evaporation crystallizer comprises an evaporation crystallizer body, wherein a condensate water discharge pipe is fixed on one side of the evaporation crystallizer body; a first flange is fixed at one end of the condensate water discharge pipe; one end of the first flange is connected with a second flange through a bolt; a feeding pipe is fixed to one end of the second flange, a first water pump is fixed to one end of the feeding pipe, and a discharging pipe is fixed to the output end of the first water pump. Through the action of the treatment box, the device filters and cools condensate water and then recycles the condensate water, so that sewage discharge can be reduced, the cost of subsequent sewage treatment is reduced, positive influence on the environment is generated, corrosion caused by impurities in a radiating pipe is reduced, the service life of the device is prolonged, the maintenance cost is reduced, and the service life of the device is prolonged. And the condensed water is cooled, so that the pressure of equipment caused by high temperature can be reduced, and the service life of the equipment is prolonged.

The invention discloses a novel water turbine blade and a preparation method. The water turbine blade comprises a water turbine shell, a water inlet runner, a water outlet runner, a rotating wheel, a rotating wheel blade, a guide vane, a guide vane blade, a runner cone, a nano-composite wear-resistant coating, a super-hydrophobic corrosion-resistant coating, a photocatalytic antifouling coating and a second-order Bezier curve. A runner is arranged in a water turbine shell, runner blades are arranged on the outer wall of the runner, guide vanes are fixedly connected to the end, close to a water inlet runner, of the runner, a runner cone is fixedly connected to the end, close to a water outlet runner, of the runner, guide vane blades are arranged on the outer wall of the guide vanes, and the runner blades and the guide vane blades are both of a second-order Bezier curve connection structure. The water inlet runner, the water outlet runner and the runner cone are all coated with super-hydrophobic anti-corrosion coatings 10; and the surface of the runner blade is sequentially coated with a nano-composite wear-resistant coating and a photocatalytic antifouling coating. The technical effects that the water flow energy capturing capacity of the blades is optimized, and the hydraulic performance of the water turbine is improved are achieved.

The invention relates to the technical field of drainage engineering, in particular to an intelligent water disaster emergency drainage device capable of automatically adjusting the drainage rate, the intelligent water disaster emergency drainage device comprises a box body and an adjusting system used for controlling the device to operate, the box body is communicated with a water inlet pipe and a plurality of water outlet pipes, and a filtering assembly used for intercepting silt is arranged in the box body. The filtering assembly comprises a partition plate fixedly connected to the inner wall of the box body, the water inlet pipe communicates below the partition plate, and the water outlet pipe communicates above the partition plate; the top of the partition plate communicates with a center screen and a plurality of movable screens. The joints of the water inlet pipe and the box body and the joints of the water outlet pipe and the box body communicate with electromagnetic valves. The adjusting system is further used for controlling opening and closing of the corresponding electromagnetic valves according to the needed water discharge amount. Through the integrated design of all the components, the silt treatment flow of intercepting, cleaning and discharging is formed; manual intervention is reduced, and screen maintenance is synchronously completed in the drainage process.

The application belongs to the technical field of drain valves, and discloses a time-delay valve core, a time-delay drain valve applying the same and a sanitary ware, wherein the time-delay valve core comprises: a body provided with a water inlet area, a water control flow channel and a water passing area, the water control flow channel being communicated between the water inlet area and the water passing area; a first adjusting member rotatably installed on the body, the water control flow channel being configured to change the water discharge flow to the water passing area with the rotation of the first adjusting member; and according to the water discharge requirement of a product, the water discharge flow of the water control flow channel is adjusted by using the first adjusting member, so that the adjustment of multiple water efficiency is realized, and the time-delay valve core is suitable for different water products. The whole structure is simple, the adjustment is convenient, and the applicability is wide.