1983 results about "Water cut" patented technology

The invention belongs to the technical field of cleaning and dirt prevention and removal, and discloses a control system and a control method of an ultrasonic cleaning device, stable energy coupling and dead-corner-free cleaning are realized through double-closed-loop driving and dynamic modulation in an ultrasonic cleaning link, and the uniformity of tank liquid cavitation intensity is remarkably improved. Meanwhile, control strategies are customized in the aspects of a rinsing link, a water cutting and drying link, liquid level control, manipulator control and the like, so that the defects of high energy consumption, incomplete drying, low rinsing efficiency, manipulator conflict and the like in the prior art are overcome while the surface and the interior of the workpiece are thoroughly cleaned; and the cleaning effects of high cleanliness, complete drying and no physical or chemical damage are ensured.

The utility model relates to a thermostatic controller for controlling water temperature, which is characterized by comprising a valve seat, and a cold water inlet flow channel, a hot water inlet flow channel, a first valve core mounting cavity, a second valve core mounting cavity, a cold water outflow channel, a hot water outflow channel, a water mixing cavity, a third valve core mounting cavity and a mixed water outflow channel are arranged in the valve seat; a first movable valve plate of the first flow adjusting valve core is driven by a first motor; the second flow regulating valve core is mounted in the second valve core mounting cavity, and a second movable valve plate of the second flow regulating valve core is driven by a second motor; the cold water outflow channel is communicated with a cold water inlet of the balance valve element, the hot water outflow channel is communicated with a hot water inlet of the balance valve element, and a cold water outlet and a hot water outlet of the balance valve element are both communicated with the water mixing cavity. The flow of cold water and hot water is adjusted by balancing movement of the piston in the valve element, and the problem that the fluctuation range of the water yield is enlarged due to the water pressure difference is effectively solved.

A system may include a lower completion disposed in a main bore of a multilateral well in a position downhole from a junction of the multilateral well. The system may also include a fluid separator configured to receive formation fluid, which includes oil and water, flowing from the lower completion. The fluid separator may be configured to at least partially separate the formation fluid into formation oil and formation water. The fluid separator may also be configured to output the formation oil, via a separator oil outlet, to flow uphole, and output the formation water, via a separator water outlet, to flow toward a lateral bore of the multilateral well. Further, the system may include a water cut sensor disposed uphole from the fluid separator. The water cut sensor may be configured to measure the percentage of water in the formation oil.

The invention discloses an oil reservoir injection-production optimization method based on an improved multi-objective particle swarm algorithm, and belongs to the technical field of oil and gas field development. According to the method, an attention mechanism, a Transform and a long-short-term memory network are introduced based on a relational graph convolutional network, geological features and production system information are combined, inter-well water content prediction is taken as a target, an HSTMF model is constructed, an injection-production well production system does not need to be adjusted, the calculated amount is greatly reduced, and the prediction precision is remarkably superior to that of a traditional method; in the aspect of optimization algorithms, a Cauchy disturbance variation mechanism is introduced into a genetic algorithm and combined with a particle swarm optimization algorithm to form a new optimization strategy, a real-time closed-loop collaborative oil reservoir management framework is constructed in combination with the moisture content prediction capability of an HSTMF model, the net present value and the total oil production are effectively increased, the total moisture content is reduced, and good practical application value is shown.

The invention discloses a waterworks intelligent scheduling system, and particularly relates to the field of waterworks scheduling, and the waterworks intelligent scheduling system comprises a data collection module, a scheduling model calculation module, a water inflow adjustment module and a control instruction issuing module, and the data collection module is used for obtaining scheduling operation data from each device and sensor of a waterworks in real time; a standardized data format is adopted to carry out structured processing on the scheduling operation data, and the data is transmitted to other modules of the system in a network communication mode; the dispatching operation data comprises water inlet amount, water outlet amount, sludge discharge amount, backwashing water amount, sampling water amount, pressure water amount and reservoir liquid level. Various data of a water plant are integrated and analyzed, including water inlet and outlet quantity, sludge discharge quantity, filter tank backwashing queue and water quantity, pressure water quantity, sampling water quantity, reservoir liquid level and the like, and the water quantity change condition and the water quantity adjustment requirement in the plant are predicted through model calculation, so that a scheduling scheme is optimized.

The invention discloses a drip irrigation device for agricultural irrigation, comprising a water pipe connected to a pump, the water pipe connected to the pump is connected to a number of irrigation mechanisms, the irrigation mechanisms are respectively connected to control mechanisms, the irrigation mechanisms are respectively connected to the control mechanisms, the irrigation mechanisms are provided with an irrigation bottom, an irrigation middle, and an irrigation top from bottom to top, the number of irrigation mechanisms and control mechanisms can be determined according to the conditions of agricultural land, the part inserted into the ground is designed to be in the form of a cross arrow, so that the insertion into the ground is more stable and not easy to topple over; by setting the control mechanism, the amount of water dripping into the ground can be controlled, which will not cause excessive water content in the root system and a decrease in yield; the device reduces agricultural irrigation costs, has low maintenance costs, and can still manually adjust the water output when the control mechanism is damaged, which is convenient and quick.

The utility model provides a mouth wash flow adjustable faucet. The mouth wash flow adjustable faucet comprises a faucet body, a change-over switch and an adjusting switch. The faucet body is provided with a water inlet channel, a mounting cavity and two water outlet channels which are communicated with each other, and a water outlet of one of the water outlet channels forms a top water outlet. The change-over switch is installed in the installation cavity, and the water inlet channel communicates with any water outlet channel through the switching action of the change-over switch. The adjusting switch is installed on the faucet body, and the water outlet flow of the top water outlet is controlled through the adjusting action of the adjusting switch, so that the water outlet height of the top water outlet can be adjusted to adapt to using habits of different consumers. The faucet provided by the utility model not only is provided with the top water outlet for discharging mouth wash, but also is provided with the adjusting switch for flexibly adjusting the water outlet amount and the water outlet height of the mouth wash, so that the requirements of users with different heights are met, or the requirements of the same user under different use conditions are met.

The utility model provides an irrigation system for gardens, which comprises a support part, an irrigation component and a water supply pipe, the irrigation component is arranged on the support part, and the irrigation component is connected with the water supply pipe; the irrigation assembly comprises a moving part, a rotary adjusting part, a water spraying part and a vertical adjusting part, and the moving part and the water spraying part are both cylindrical; a water storage cavity is formed in the water spraying part, a connecting port is formed in the bottom of the water spraying part, water spraying ports are formed in the circumferential surface of the water spraying part, and the water spraying ports, the water storage cavity and the connecting port are sequentially communicated to form a water spraying channel; the moving part comprises a sliding cylinder, the sliding cylinder slidably sleeves the periphery of the water spraying part, and water outlet holes are formed in the circumferential surface of the sliding cylinder; the water outlet end of the water supply pipe penetrates through and is fixed to the supporting part, and the water inlet end of the water supply pipe is connected with the water storage tank / box. According to the utility model, the moving and rotating processes of the sliding cylinder along the vertical direction are simultaneously met, the water outlet amount and the water outlet direction are adjusted, different irrigation requirements are met, and the device is suitable for all irrigation scenes.

The invention relates to a glass assembly, a door and window assembly and a vehicle. The covered edge is connected to the edge side of the glass; the wrapping edge comprises a connecting part and an abutting part, the connecting part and the outer surface of the glass form continuous transition, and the abutting part is used for abutting against a first mounting part of a vehicle body metal plate in a sealed mode. According to the glass assembly, the edge side of the glass is connected with the covered edge, when the vehicle body metal plate and the glass assembly are assembled and matched, the vehicle body metal plate directly abuts against the covered edge in a sealed mode through the first installation part, and after the arrangement, on one hand, zero-clearance installation of the vehicle body metal plate and the glass can be achieved, and the offset of the vehicle body metal plate and the glass in the Y direction of a vehicle is effectively eliminated; more simplified, flush and smooth modeling design of the A surface of the vehicle can be carried out; and on the other hand, the first mounting part is in sealed butt joint with the covered edge, so that the requirement for sealing mounting of the metal plate and the glass of the automobile body can be met, a traditional water cutting assembly can be omitted, the whole automobile cost can be reduced, and cost reduction and efficiency improvement of an automobile factory are facilitated.

The high-pressure water cutting device comprises a [-shaped protective fence frame, an inlet and outlet is formed in the front side of the protective fence frame, a rectangular annular drainage ditch is formed in the position, on the inner side of the protective fence frame, of the ground, and a robot is arranged in the middle of the position, on the inner side of the drainage ditch, of the ground; the tail end of a mechanical arm on the robot is connected with a water jet cutter and a flushing spray head, the robot is used for controlling the cutting track of the water jet cutter, and meanwhile the flushing spray head moves along with the cutting track of the water jet cutter to flush the cutting part; longitudinal traveling rails are arranged in the protective fence frames on the two sides of the robot correspondingly, and the traveling rails are fixed to the ground and extend out of the entrances and exits of the protective fence frames. A carrying trolley is arranged on the travelling crane rail, and a workpiece clamping table is fixedly connected to the carrying trolley. According to the high-pressure water cutting device, the robot is adopted to control the water jet to operate, cutting is convenient, and precision is high; and a corresponding universal die casting clamping table which is convenient and stable in clamping is designed.

The invention discloses a drilling and cutting head, a drilling and cutting device, a gob-side entry retaining slotting method and a roof cutting pressure relief method, and belongs to the technical field of mine drilling and cutting. The drilling and cutting head comprises a vehicle body, a drilling rod and the drilling and cutting head, and the vehicle body is rotationally provided with a drilling rod conveying driving mechanism through a connecting base and a rotary table; a water cutting system is further installed on the vehicle body. The drilling and cutting head comprises a mounting seat, a plurality of drill bit seats and drill bit blocks, an inner cavity is formed in one end of the mounting seat, and mounting holes are formed in the side wall of the mounting seat; a spray hole is formed in the middle of the spray head. And the end part of the inner cavity of the drilling and cutting head is connected with the head drill rod. Through one device, two operation procedures of drilling and water cutting can be achieved, high efficiency of the gob-side entry retaining slotting method and the top cutting pressure relief method can be achieved, the device cost is effectively reduced, the device can be flexibly and conveniently used in a roadway, the operation efficiency is effectively improved, and the device cost is reduced.

The present invention discloses a distributed water mixing heating device, which specifically relates to the technical field of water mixing heating, including a heating pipe, a filter assembly 1 is fixedly connected to the rear end of the heating pipe, two symmetrically arranged filter assemblies 2 are fixedly connected to the rear end of the filter assembly 1, and the ends of the two filter assemblies 2 close to each other are fixedly connected to a water mixing assembly, a heating assembly is fixedly connected to the right side of the rear end of the water mixing assembly, and a storage assembly is fixedly connected to the left side of the heating assembly. A distributed water mixing heating device of the present invention can drive a toggle rod to rotate through a transmission belt when an impeller is impacted by a water flow, so that the corrosion and scale inhibitor can be added in an appropriate amount according to the water output, thereby ensuring that the corrosion and scale inhibitor reaches an optimal concentration in the circulating water, thereby avoiding the formation of metal corrosion residues and scale in the inner cavity of the heating pipe when the metal equipment is used for too long, and further extending the service life of the equipment.

The utility model relates to a two-stage isolation water seal, saturated vapor pressure driving and flash evaporation automatic sealing safety water cutting system for a liquefied hydrocarbon storage tank, and aims to ensure safe oil-water distribution. The liquefied hydrocarbon storage tank area pressure storage tank is connected in series with each automatic water cutting unit and then is connected with the sewage collection unit; the top of the sewage tank and the top of the water draining tank are respectively communicated with a safety release pipeline through a safety release valve and a bypass control valve; and an intelligent controller for controlling the sewage in the sewage tank to discharge liquefied hydrocarbon in a flash evaporation manner to the safety release pipeline under the primary isolation water seal and the saturated vapor pressure to drive the self-water-cutting tank to cut water and controlling the sewage in the sewage tank to be pressurized and discharged to the interface detection sensor to monitor the water level through the nitrogen pressurizing valve pipeline after discharge under the secondary isolation water seal is configured. The device has the advantages that liquefied hydrocarbon forming fire hazards does not exist in finally discharged sewage, and safe operation is ensured.

The invention relates to the field of direct drinking water of a fusion calculation model, and discloses a double-membrane mixing direct drinking water system and an operation method.The method comprises the steps that online data of a water supply end and a water quality monitoring end are collected for cleaning and time alignment, and a basic working condition data set is formed; the method comprises the following steps: establishing an operation characteristic model comprising water demand prediction, raw water quality prediction and membrane flux characteristic sub-models, calculating double-membrane target water yield and water quality indexes based on the model to generate a control parameter set, evaluating membrane pollution to generate an online cleaning task queue, performing joint simulation to generate a pressure stability control instruction set, and dynamically correcting the model. The conversion from passive response to active pre-judgment of the double-membrane mixing direct drinking water system is realized, and the operation stability, the water quality guarantee capability and the water-saving and energy-saving effects are improved.

The utility model relates to the technical field of injection molding part machining, and provides a water gap cutting device which comprises a rack, a support, a driving mechanism, a bearing plate, a pressing mechanism, a carrier and a cutting mechanism, the support, the driving mechanism and the bearing plate are all arranged on the rack, the pressing mechanism is arranged on the support, the driving mechanism drives the bearing plate to do reciprocating motion, and the carrier and the cutting mechanism are both arranged on the bearing plate. The cutting mechanism is located on the side of the carrier. Through the arrangement of the driving mechanism, the pressing mechanism and the cutting mechanism, after an injection molding part is placed on the carrier, the driving mechanism drives the bearing plate to move until the injection molding part is located below the pressing mechanism and then stops, the pressing mechanism presses the injection molding part, the cutting mechanism conducts water gap cutting on the injection molding part, and after water gap cutting is completed, the pressing mechanism leaves the injection molding part; and the driving mechanism drives the bearing plate to return to the initial position, so that the material taking and placing manipulator takes away the injection molding part with the water gap to be cut off and then places the next injection molding part with the water gap to be cut off, the labor intensity of personnel is reduced, and the production efficiency is improved.

The invention discloses an outlet water temperature control method and device of a water purifier, electronic equipment and a medium, and the method comprises the steps: obtaining water use information set by a user, and obtaining internal pipeline information of the water purifier; and controlling a heating program and a water outlet program of the water purifier according to the water use information set by the user and the internal pipeline information of the water purifier. The first acquisition module is used for acquiring the water consumption information of the user; the second acquisition module is used for acquiring internal pipeline information of the water purifier; and the control module is used for controlling a heating program and a water outlet program of the water purifier according to the water use information set by the user and the internal pipeline information of the water purifier. According to the outlet water temperature control method and device of the water purifier, the electronic equipment and the medium, the volume and the water temperature of the pipeline in the water purifier can be considered, then the outlet water temperature is accurately controlled through water mixing control, and a user can obtain the set outlet water amount closest to the set outlet water temperature.

The invention provides a split type hidden outer water cutting which comprises a vehicle door metal plate and an outer water cutting assembly installed in the vehicle door metal plate, and the outer water cutting assembly comprises an outer water cutting fixing support, a sealing component and a clamping accessory. An outer water cutting installation hole is formed in an automobile door outer plate reinforcing plate of the automobile door metal plate, an outer water cutting assembly installation hole is formed in the outer water cutting fixing support, and the outer water cutting fixing support is installed on the automobile door reinforcing plate under the action of the clamping accessory, the outer water cutting installation hole and the outer water cutting assembly installation hole. A groove is formed in a framework of the outer water cutting fixing support, a base of the sealing component is clamped in the groove, a first sealing feature is connected to the base, a first contact medium is arranged on the first sealing feature, and the first contact medium makes contact with automobile door glass. The outer water cutting assembly is of a split structure, the effect of firm connection can be achieved through cooperation of the outer water cutting fixing support, the sealing component and the clamping accessory, meanwhile, the cost is low, and sealing can be achieved through the sealing component.

The invention relates to the technical field of underground water prevention and control, in particular to a tunnel two-step grouting plugging method for wide crack water gushing, which comprises the following steps of: constructing a grouting hole intersected with a wide crack or a concentrated water gushing channel according to a geological survey result; first rapid plugging slurry is injected into the crack through the grouting hole, and the first rapid plugging slurry can form a temporary water stopping barrier in the flowing water environment; the water outlet amount change and the grouting pressure change of the adjacent observation holes are monitored, and when the water outlet amount is remarkably reduced and / or the grouting pressure stably rises and forms a platform, it is judged that the temporary water stop barrier is formed; and second reinforcing grout is injected into the crack through the grouting holes, and after the second reinforcing grout is solidified, a permanent reinforcing body with mechanical strength is formed. By optimizing the grouting material and the process time sequence, effective combination of rapid plugging and long-term reinforcement is achieved, the grouting reliability is improved, and the engineering cost is reduced.

The invention relates to a method for evaluating the oil production potential of an oil reservoir in an ultra-high water cut period, and belongs to the technical field of oil development. According to the method for evaluating the oil production potential of the oil reservoir in the extra-high water cut period, various parameters influencing the oil production capacity and the time-varying property of the permeability in the production process are comprehensively considered, the virtual well method is introduced to calculate the oil production of each grid, and oil production potential distribution diagrams of different areas are generated; therefore, the oil production capacity of oil reservoirs in different areas in the later stage of water drive development is quantitatively and visually represented, potential tapping scheme deployment is quantitatively guided, and the method has important guiding significance for fine development of ultra-high water-cut oil reservoirs. According to the method, various factors influencing the oil production capacity of the oil reservoir are comprehensively considered, and the problem that oil production potential description of remaining oil is not accurate enough is solved; meanwhile, the influence of the accumulated water injection rate of the water injection development oil reservoir in the extra-high water cut period on the permeability is considered, the permeability of the digital-analog model is updated and corrected through the relation between the water passing multiple and the permeability, and the precision of quantitative characterization of the oil reservoir numerical model and the oil production potential is improved.

The invention relates to the technical field of water flooding gas reservoirs, in particular to a rock core displacement fluid saturation testing method and a testing device thereof.The method comprises the steps that S1, the original formation pressure and temperature of a gas reservoir are obtained; s2, obtaining a rock core, and testing physical property data of the rock core; then carrying out nuclear magnetic testing on the rock core; s3, saturating the rock core with formation water, and then carrying out nuclear magnetic testing; s4, carrying out gas drive water seepage test on the rock core according to the data in the S1, and obtaining the drive water quantity; s5, performing nuclear magnetic test on the depleted rock core; s6, obtaining the irreducible water saturation of the depleted rock core according to the nuclear magnetic test results of the steps S2, S3 and S5; s7, the total irreducible water saturation of the rock core is obtained according to the rock core physical property data, the displacement water amount and the irreducible water saturation of the rock core after exhaustion; the device comprises a drying oven, a first container, a second container, a core holder, a confining pressure pump, a displacement pump, a back pressure assembly, a receiving container and an electronic balance. The accuracy of fluid saturation determination can be improved.

The invention relates to the technical field of cleaning equipment, in particular to a scrubber water volume intelligent control method and system based on cleaning feedback, and the method comprises the steps: confirming a water volume control database by using a data simulation unit, obtaining a cleaning confirmation parameter set based on the water volume control database, receiving a target cleaning parameter set selected by a user based on the cleaning confirmation parameter set, when the target scrubber detects a detection area with detection stains in the initial cleaning ground, a detection stain image and detection stain humidity of the detection area are obtained, target cleaning water quantity is retrieved from the water quantity control database by using the target cleaning parameter set and the detection stain humidity, and the detection area is cleaned by using the target cleaning water quantity. And the sewage gray value of the sewage after cleaning and the cleaning stain image of the detection area after cleaning are obtained, and after it is confirmed that the detection area is clean according to the detection stain image, the cleaning stain image and the sewage gray value, intelligent control over the water amount of the target floor washing machine is achieved. According to the invention, intelligent control of the water quantity of the scrubber can be realized.

The invention discloses a water injection regulation and control method based on deep reinforcement learning under data and model fusion driving, and the method comprises the following steps: collecting operation parameter data under an oil field injection-production working condition, and carrying out the data preprocessing; a model-free water injection regulation strategy is designed, a traditional oil yield prediction model is removed, and a water injection action is directly generated based on an environment state by constructing a state-action space containing the parameters; a soft actor-commentator (SAC) algorithm and a long short-term memory network (LSTM) collaborative decision framework are adopted, an oil reservoir parameter time sequence rule is captured by using LSTM to provide state prediction for SAC, and water injection and oil extraction joint debugging of a well group is optimized in combination with a state-driven dynamic reward function; a priority experience playback mechanism is introduced to optimize SAC training, and the action generation efficiency is improved. According to the model constructed by the method, the calculation complexity is remarkably reduced, the oil production is improved, the water content is reduced, and the method has relatively high practical value and economic benefits and is particularly suitable for water injection regulation and control scenes under complex oil reservoir conditions.

The invention relates to the technical field of ultrahigh-pressure water cutting, and discloses an ultrahigh-pressure water cutting composite material winding sand mixing tank based on a lightweight structure, which comprises a metal cylinder body, and the metal cylinder body is the core part of the whole structure and is used for assembling and connecting other structural members; the two elliptical sealing heads are positioned at the upper end and the lower end of the metal cylinder and are used for sealing the whole structure; the reinforcing layer is positioned on the periphery of the metal cylinder and outside the two elliptical heads and is used for reinforcing the overall structural strength; and the protective layer is located outside the reinforcing layer and the two elliptical sealing heads and used for protecting the whole structure. According to the ultrahigh-pressure water cutting sand mixing tank, the transition section where the elliptical head is connected with the metal cylinder adopts a fillet transition form, stress concentration is reduced, the mechanical property is optimized, the overall safety and reliability of the ultrahigh-pressure water cutting sand mixing tank are improved, the metal cylinder made of high-strength alloy steel is selected, the impact resistance and fatigue resistance of the overall material are cooperatively improved, and the pressure bearing capacity is effectively improved.

The invention discloses a water purifier control method and system based on an AI model, a terminal and a storage medium, and relates to the technical field of water purifier control. Acquiring using parameters of the water purifier in the next day; training an AI model based on the using parameters of the next day and the purified water using data; using the trained AI model to analyze the latest water purification use data, and controlling the water purifier; the water purifier control method is used for solving the problems that in an existing water purifier control method, the water yield of a water purifier cannot be controlled based on the water using habit of a user, so that the diversified requirements of the user cannot be effectively met when the user needs different water using amounts in different time periods within one day, and the user experience is poor. The actual water use experience of the user is influenced; and the water taking efficiency is reduced.

The invention provides an intelligent water affair data management method and system, and the method comprises the steps: determining adjacent leakage points through a distribution density change direction, recognizing a pressure gradient between the adjacent leakage points, and determining a single-point water yield correction proportion; checking the single-point water yield correction proportion and the instantaneous flow value in the leakage point related data set to obtain a flow deviation value, identifying the type of the leakage point according to the flow deviation value and the flow fluctuation characteristics, and adjusting a leakage contribution degree evaluation weight table according to the type of the leakage point; summarizing the total leakage water quantity from the classified real leakage water quantity components, analyzing a change rate in combination with historical total leakage water quantity data, evaluating whether the change rate reflects a total water quantity reduction phenomenon under the condition that the number of leakage points is increased or not, and obtaining a total leakage water quantity verification result; and according to a total leakage water quantity verification result, the partition pressure data and the distribution density change trend are integrated to generate a pipe network health assessment report, and the overall accuracy improvement degree is assessed through an accumulated value of a real leakage water quantity component in the report.

The utility model discloses a heat tracing temperature adjusting system for an automatic water cutting device of a liquefied gas storage tank, which comprises a liquefied gas spherical tank and the automatic water cutting device, the liquefied gas spherical tank is connected with the automatic water cutting device through a water discharging pipe, a remote control valve and a water cutting valve are arranged on the water discharging pipe, a tank root valve is arranged at the position close to the liquefied gas spherical tank, and the tank root valve is connected with the automatic water cutting device. A thermometer is arranged on the upper portion of the automatic water cutting device, a hot water supply pipe and a hot water return pipe are arranged on the outer side face of the lower portion of the automatic water cutting device respectively, and a hot water supply tank root valve and a hot water return tank root valve are arranged on the hot water supply pipe and the hot water return pipe close to the automatic water cutting device respectively. According to the heat tracing temperature adjusting system for the automatic water cutting device of the liquefied gas storage tank, the heat tracing temperature of the automatic water cutting device can be controlled, frequent opening of a safety valve is avoided, and the workload of workers is relieved.

The utility model relates to an irrigation emitter capable of adjusting flow in sections, which comprises an upper shell, a lower shell and an elastic labyrinth body, the lower side of the upper shell is provided with a containing cavity, the upper side of the upper shell is provided with a water inlet plug used for being connected with a water pipe, a water inlet channel is arranged in the water inlet plug, and the water inlet channel is communicated with the containing cavity; the upper side of the lower shell is provided with a water storage chamber, one side of the lower shell is provided with a water outlet channel, the elastic labyrinth body is embedded into the containing cavity of the upper shell, the water storage chamber of the lower shell is inserted into the containing cavity to limit the elastic labyrinth body, and the lower shell is in running fit with the upper shell; and the elastic labyrinth body is limited by a limiting mechanism to realize synchronous rotation with the upper shell. By rotating the upper shell or the lower shell, segmented adjustment of the water outlet flow can be achieved, and the problem that the water outlet flow of an existing irrigation emitter cannot be adjusted is solved.

A smart dewatering and water stopping method for a foundation pit, the method comprising the following steps: step S1, dewatering: arranging a plurality of dewatering wells, arranging dewatering water pumps, and lowering a water level in each dewatering well to a preset position by means of each dewatering water pump; step S2, drainage: arranging water collection systems, and draining water from inside a foundation pit by means of the water collection systems; step 3, water blocking: arranging an underground water blocking barrier to prevent underground water outside the foundation pit from flowing into the foundation pit; step S4, water cut-off: arranging a water blocking wall to block water-layer interflow between the interior of the foundation pit and the exterior of the foundation pit; and step S5, performing well water level monitoring, and starting an emergency measure: when a water level exceeds a preset safety range or a stability index of the foundation pit is reduced, starting an automatic emergency measure system. In the present application, for underground water control, the automatic emergency measure system is used to achieve the aims of smart dewatering and water stopping of the foundation pit.

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 utility model relates to the technical field of cutting equipment, and discloses a high-pressure water cutting machine which comprises a working table, a guide rail fixed on the working table and a cutting head body sliding on the guide rail, a plurality of supporting plates are evenly fixed on the working table, and first adjusting screw rods arranged in the axial direction of the working table are connected to the two sides of the working table in a rotating mode. The first adjusting screw rods are driven by a driving mechanism installed on the workbench to rotate, the first adjusting screw rods on the two sides are in threaded connection with a fixing base, driving air cylinders perpendicular to the first adjusting screw rods are installed on the fixing base, the driving air cylinders on the two sides are arranged in a mirror image mode, and clamping pieces are fixed to the output ends of the driving air cylinders. The clamping piece comprises a fixing piece, a clamping plate fixed to the fixing piece, a pushing plate sliding at the bottom end of the clamping plate and a pressing plate sliding on the fixing piece. The utility model has the following advantages and effects: the workpiece to be processed can be fixed in the processing process, the workpiece to be processed is prevented from shaking randomly in the processing process, and the cutting quality is improved.