1385 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 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 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 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 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 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 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 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 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 invention relates to a weak-base three-component combination flooding comprehensive adjustment method after polymer flooding of a first-class oil layer. The problem that a proper comprehensive adjustment method is seriously lacked due to low-efficiency and ineffective circulation of dominant seepage channel development after polymer flooding of a first-class oil layer is solved. The method comprises the steps that S1, in the non-effective period of a producing well, an injection well adopts a double-height injection system, and a dominant seepage channel, injection-production balance and pressure balance are regulated and controlled; s2, in the water content decline period, large-scale separate injection is carried out, injection well measure adjustment is optimized, profile production is improved, and oil production well effectiveness is promoted; s3, in the water content low value period, the injection and production well fracturing mode is optimized; the injection-production capacity is kept; large-scale separate injection is increased, and the interval strength is optimized; and S4, in the water content rising period, high-concentration low-speed injection of the injection well is kept, and water content rising is controlled. According to the method, optimization measures of different injection stages of weak-base three-component combination flooding after polymer flooding of the first-class oil layer are adjusted, dominant seepage channels are blocked, remaining oil of medium and low permeable layers is excavated, and the block development effect is improved.

The invention relates to the technical field of foundation pit engineering construction, in particular to a foundation pit drainage optimization method and system based on water level monitoring. Comprising the steps that precipitation partitions are divided according to geological conditions and a construction scheme, and precipitation wells and observation wells are arranged; determining differentiated target water level drop depth according to the excavation depth and the support state; establishing an inter-partition hydraulic coupling model through a pulse water pumping test, and determining coupling kernel function parameters; predicting the future water level change through convolution operation based on the coupling kernel function and the historical water yield; calculating an optimal water yield sequence by adopting a rolling time domain optimization method, and taking the minimum accumulated water yield as a target and meeting the target water level drop as a constraint; controlling the operation power of the water pump and implementing cooperative compensation; coupling kernel function parameters are periodically updated to adapt to system changes. The rainfall control precision is improved, the energy consumption is reduced, and the construction safety is guaranteed.

The invention belongs to the technical field of sludge dewatering, and discloses a water conservancy project sludge separation device which comprises a supporting frame, a filter cylinder is installed on the inner wall of the supporting frame, and the lower end face of the supporting frame communicates with a water outlet; the spiral blade is arranged in the filter cartridge in a sleeving manner and is connected with an output shaft of the servo motor through a transmission assembly, the screw pitch of the spiral blade is gradually reduced from the feeding end to the discharging end of the filter cartridge, and sludge is dewatered; a moisture sensor is arranged on the outer wall of the extrusion plate and is used for detecting the moisture content of the extruded and dehydrated sludge; the cleaning assembly is arranged outside the filter cartridge and comprises a water spraying ring, a valve rod, a valve shell and a hydraulic rod; the water spraying ring has small water yield when the front end of the filter cartridge is slightly blocked, and has large water yield when the rear end of the filter cartridge is seriously blocked. The flushing water pressure can be automatically adjusted according to the blocking degrees of different areas outside the filter cartridge, water resources can be saved, and the cleaning effect is not affected.

The embodiment of the application provides a gravity self-balancing uniform water distribution system, which comprises first, second and third stage gravity self-balancing water distribution pipelines. Each second stage gravity self-balancing water distribution pipeline is connected to the first stage gravity self-balancing water distribution pipeline, and each third stage gravity self-balancing water distribution pipeline is connected to the second stage gravity self-balancing water distribution pipeline. The circulating water of the cooling tower is automatically depressurized after entering the first stage gravity self-balancing water distribution pipeline, and flows into each second stage gravity self-balancing water distribution pipeline on the basis of the self-weight of the water to realize double uniform water distribution. The water level height of each second stage gravity self-balancing water distribution pipeline is consistent, and the water inlet flows to the third stage gravity self-balancing water distribution pipeline again. The pressure at each water nozzle directly or indirectly connected to the third stage gravity self-balancing water distribution pipeline is consistent, and the water outlet of each water nozzle and the spraying area are substantially the same, so that uniform water distribution is realized, the water inlet is not affected by the water pressure, and the cooling efficiency of the cooling tower is significantly improved.

The invention relates to the technical field of heat exchange equipment, and particularly discloses a composite mixed-flow air cooler with a peak device. The device comprises a shell, an induced draft fan, a medium transfer pipe, a water feeding pipe, a first adjusting valve, a water feeding tee joint, a second adjusting valve, cooling filler, an evaporation coil, an evaporation coil adjusting air inlet window, a cooling filler adjusting air inlet window, an air cooler adjusting air inlet window, a medium inlet, a circulating water tank, an air cooler, a fogging bed, an air mixing chamber and a cooling filler water distribution device. And the evaporation coil pipe water distribution device comprises a medium outlet and a water collector. The system has multiple operation modes, such as a peak operation mode, a summer operation mode, a spring and autumn combined operation mode, a water cut-off operation mode and an anti-freezing mode, and can meet different use scenes. And a mixed-flow type drop flow cooling and condensing technology and a condensing, recycling and reheating technology are originally created, so that multiple functions of saving water and energy and eliminating white fog are realized.

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 application discloses an intelligent identification method for dominant seepage channels based on big data, which comprises the following steps: collecting static geological data, dynamic development data and dynamic monitoring data of an oil reservoir and performing data processing; performing data quality analysis on the processed data and establishing a sample database; performing inter-well connectivity analysis and inter-well pressure response analysis in a plane according to the sample database, and identifying dominant channels in the plane; performing interlayer production and absorption law research in a vertical direction according to the sample database, predicting interlayer liquid production and absorption ratios and water cut, and identifying dominant interlayer positions in the vertical direction; and comprehensively identifying dominant seepage channels between each layer of a production well and an injection well based on the identified dominant channels in the plane and the dominant interlayer positions in the vertical direction.

The utility model provides a vehicle door structure and a vehicle. The vehicle door structure comprises a vehicle door body and an outer sealing strip arranged on the vehicle door body. The upper end of the vehicle door body is provided with an extending part extending towards the vehicle door glass, and a mounting space is formed between the vehicle door body and the vehicle door glass. The outer water cutting part is arranged in the installation space and comprises a water cutting part body, a first lip edge and a second lip edge, the first lip edge and the second lip edge are arranged on the water cutting part body, the first lip edge abuts against the extending part, the second lip edge can abut against the automobile door glass, and therefore a closed cavity is defined by the second lip edge, the first lip edge and the water cutting part body. According to the vehicle door structure, the outer water cut can be hidden, and the delicate appearance of the vehicle door structure can be improved. Meanwhile, an existing decorative bright strip can be omitted, the appearance problem caused by corrosion of the decorative bright strip can be effectively avoided, cost can be reduced, and assembling procedures can be reduced. By forming the closed cavity, the outer water cut can have a good sealing effect on the automobile door glass and the automobile door body.

The invention relates to the technical field of water supply devices, and discloses a waterway cleaning control method and device, a water supply device and a medium. The method comprises the following steps: acquiring a cleaning signal, wherein the cleaning signal carries cleaning configuration; responding to the cleaning signal, and obtaining stage use data of the water supply device; determining a target cleaning scheme according to the cleaning configuration and the stage use data; and controlling the water supply device to perform waterway cleaning according to the target cleaning scheme. Therefore, the efficient and thorough waterway cleaning effect is achieved, the stability of the water yield is improved, the situation that scale accumulation and impurities cause damage to the internal structure of the water supply device is prevented, and the service life of equipment is prolonged.

The invention discloses a foam-soil particle mixture piping test device and an operation method, and belongs to the technical field of soil body destruction models.The foam-soil particle mixture piping test device comprises a transparent cylinder, a first permeable stone and a second permeable stone are placed in the transparent cylinder, and a foam-soil particle mixture is placed between the first permeable stone and the second permeable stone; the bottom of the transparent cylinder is connected with a water supply tank through a water inlet pipe; the first permeable stone is higher than the water inlet pipe, and a flow stabilizing chamber is formed on the bottom surface of the first permeable stone; the top cover central opening is connected with the first end of the tee A; the third end of the tee joint A is connected with the sealing cover; the bottom of the water supply tank is higher than the tee A and the tail end of the water outlet pipe; the water head difference is changed by changing the tail end height of the water outlet pipe; a plurality of pore pressure sensors are uniformly arranged on the side walls of the lower cylinder and the upper cylinder; an electronic scale and a basin are arranged below the tail end of the water outlet pipe to monitor water yield. The technical problem that a device in the prior art cannot truly and effectively simulate the foam-soil particle mixture piping process can be solved.