1026 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 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 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 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 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 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.

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 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 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.

The invention provides a water content prediction algorithm and system based on time convolution, and relates to the technical field of data processing, and the method comprises the steps: carrying out the noise reduction preprocessing of collected current production data, and inputting the data after noise reduction preprocessing into a time convolution model; sequentially performing spatial feature extraction and time feature extraction on the data subjected to noise reduction preprocessing through a spatial feature extraction module and a time feature extraction module to obtain spatial and temporal features; converting the data into a frequency domain sequence through a frequency domain conversion module, and extracting frequency domain features; and inputting the spatial-temporal features and the frequency domain features into a fusion classification module to obtain a water content prediction result. The time convolution model based on the time sequence and frequency domain conjoint analysis is provided and applied to moisture content prediction, the prediction precision is improved, research on the production law in oilfield development is facilitated, and optimization of oilfield production management and resource utilization is also facilitated.

A system for enhancing oilfield performance analysis and optimization, comprising a data collection module configured to collect real-time Gas-Oil Ratio (GOR) and Water Cut (WC) data from oilfield sensors a physics-based modeling module configured to simulate a vertical pressure profile based on the collected GOR and WC data, and a machine learning module configured to analyze outputs from the physics-based modeling module and historical data, classify wells based on the analysis, establish baseline metrics for evaluating reservoir productivity based on the analysis and classification, generate a recommendation for well operations based on the analysis, classification and baseline metrics, and a user interface configured to display the recommendation.

The utility model discloses a frameless car door top sealing system, belongs to the technical field of car doors, and solves the problem that leakage occurs at the joint of a glass guide groove and an environment part which is actually a car door window frame or a car body sheet metal part after the structure is damaged through rivet connection. The frameless vehicle door top sealing system comprises a glass guide groove, the glass guide groove comprises a sealing part and a connecting part, an included angle is formed between the sealing part and the connecting part, the included angle is larger than or equal to 90 degrees and smaller than 180 degrees, and the connecting part can be used for being fixedly connected with a vehicle sheet metal part. The frameless car door moving glass is in contact with the sealing cover when ascending, elastic deformation is achieved, gaps are reduced, the sealing effect is enhanced, the outer sealing lip provides a second defense line, rainwater is prevented from entering, the outer water cutter protects the glass guide groove, water resistance is enhanced, the glass guide groove is fixed through the connecting rail bar and other structures, rivet damage is avoided, and water leakage is reduced.

The water jet cutting equipment comprises a workbench, a conveying mechanism, a pressing mechanism, a cutting mechanism and a filtering and circulating mechanism, the conveying mechanism comprises a first fixing base, a first connecting block, a conveying base and a conveying wheel, and the pressing mechanism comprises a second fixing base, a second connecting block, a buffering base, a lifting base and a pressing roller. The cutting mechanism comprises a water cutting knife, a supporting frame and a moving device, an electric rotating device is arranged at the joint of the moving device and the water cutting knife, the filtering circulating mechanism comprises a collecting box, a filtering device, an electric air pump and a pipeline, and a propelling device is arranged at the lower end of the collecting box. The device is simple and reasonable in structure, the steel can be automatically cut and machined into a female connector and a male connector by starting the device by an operator and conveying the steel into the device through a travelling crane, the cut female connector and the cut male connector are automatically conveyed into a collecting vehicle to be collected, and waste water generated during cutting is recycled. And filtering and recycling can be realized through the filtering and circulating mechanism.

The invention relates to a water balance regulation and control method and device for a power plant, electronic equipment and a storage medium, and the method comprises the steps: inputting the multi-source operation data of a current power plant water system into a preset time sequence prediction model, outputting a water quantity prediction result, and based on a preset multi-target optimization algorithm, according to the current unit operation state and the water quantity prediction result, obtaining a water balance regulation and control result; obtaining a target control strategy meeting a preset constraint condition; inputting the current wastewater quality and quantity information into a preset wastewater scheduling model for wastewater utilization planning, and generating a target wastewater utilization strategy; and generating a target control instruction according to the target control strategy and the target wastewater utilization strategy, and issuing the target control instruction to an execution mechanism so as to control the execution mechanism to perform a corresponding adjustment action based on the target control instruction. Therefore, the static, isolated and extensive defects of existing coal-fired power plant water system management are overcome, the unit power generation water taking amount is remarkably reduced, the comprehensive utilization efficiency of water resources is improved, and the method adapts to the complex operation working conditions such as deep peak regulation.

The invention discloses a neural network-based water drive oil field dominant channel grade identification method, which comprises the following steps of: acquiring multi-source data of an oil field injection and production well, including multi-dimensional information such as liquid production capacity, oil production capacity, water content, working fluid level, perforation information, production and absorption profile, tracer response and the like; longitudinal multiple parameters, time evolution characteristics and spatial distribution relations are fused to construct a multi-modal data set; a multi-input neural network structure is designed, a multi-layer perceptron is adopted to extract time sequence features of structured data, a graph convolutional network is adopted to extract geological map features, and cross-modal fusion is realized in combination with a feature splicing module; a causal inference mechanism is introduced, the causal effect between injection and production wells is estimated through attention weight and anti-factual inference, and the dominant channel level is quantified. The method can effectively improve the recognition capability of dominant channels under a complex injection-production relation and a heterogeneous geologic structure, has high practical value and popularization potential, and is suitable for profile control optimization and injection-production structure adjustment tasks of various water drive oilfields.

The utility model discloses a portable water purifier. The portable water purifier comprises a filtering unit and a power device, wherein the filtering unit comprises a raw water inlet and a purified water outlet; the power device comprises a shell and at least one piston movably arranged in the shell, two pressure cavities are defined by the piston and the shell, each pressure cavity is correspondingly provided with a raw water inlet and a raw water outlet, the raw water outlet is communicated with the raw water inlet, and the piston moves back and forth in the shell to enable each pressure cavity to be switched between a negative pressure state and a positive pressure state; and in the back-and-forth movement process of the piston, one of the two pressure cavities is in a negative pressure state, and the other pressure cavity is correspondingly in a positive pressure state. According to the portable water purifier provided by the invention, in the back-and-forth movement process of the piston, the two pressure cavities alternately convey raw water to the filtering unit, so that the filtering unit can continuously discharge water, the problem of discontinuous water discharge is solved, the water discharge flow is favorably increased, the water discharge amount in unit time is large, and the operation is more time-saving and labor-saving.

The invention discloses an anti-rust tool and an anti-rust method used between metal part working procedures, and solves the problems that according to an existing automobile part anti-rust method, various machining media such as machining oil and machining liquid on the surface of an automobile part are cleaned, additional working procedures and working hours are increased, and the anti-rust cost is increased. According to the method, the part is cleaned through the water cutting agent firstly, then oil coating and rust prevention are conducted, rust prevention can be achieved for one month between procedures, and the appearance quality of the part is guaranteed. The corrosion rate of a trial-manufactured new product is reduced from 80% to 0.35%, corrosion is effectively inhibited, and product delivery is guaranteed. According to the anti-rust tool and the anti-rust method, the working procedures and working hours of transferring and cleaning before oil coating are reduced, operation is conducted in the part machining gap, convenience and rapidness are achieved, no extra personnel is added, cleaning and water cutting of the parts between the working procedures can be rapidly achieved, oil coating and rust prevention are achieved, and the anti-rust tool and the anti-rust method are suitable for rust prevention of the automobile parts.

The utility model discloses a corn planter with an automatic watering structure, and relates to the technical field of corn planters, a water storage tank is of a hollow box type structure, and the bottom end of the water storage tank is in through connection with a plurality of water outlet pipes at equal intervals; the plurality of through pipes are respectively arranged on the outer ring walls of the corresponding water outlet pipes in a penetrating manner; one end of each blocking rod is movably inserted into the corresponding through pipe, and the end of each blocking rod abuts against the inner wall of the water outlet pipe in a matched mode; the multiple limiting rings are fixedly arranged on the ring wall of the other end of the plugging rod, the multiple springs are arranged on the plugging rod, and the two ends of the springs are connected with the through pipe and the limiting rings correspondingly; the adjusting assembly is arranged on the rotating rod, and the adjusting assembly is connected with the end part of the plugging rod; movement of the blocking rods is controlled through the adjusting assembly, the water outlet amount of the water outlet pipe is quantitatively controlled, and quantitative seed irrigation is facilitated.

The present invention discloses an external watertight assembly and a vehicle, wherein the external watertight assembly includes a vehicle door assembly, a mounting bracket, and an external watertight assembly; the mounting bracket is connected to the vehicle door assembly and is located inside the corner of the door assembly end; the external watertight assembly includes an external watertight corner and an external watertight insert, the external watertight insert being fixedly connected to the external watertight corner and configured to be fastened to the mounting bracket. The technical solution of the present invention can improve the assembly stability and efficiency of the external watertight assembly.

The invention relates to the technical field of pipeline power generation, and particularly discloses a pipeline power generation device, comprising: a power generation impeller, the power generation impeller comprising a rotating turbine and a rotating shaft, the power generation impeller enabling the rotating turbine to drive the rotating shaft to rotate through flow impact of a medium in a pipeline; an output shaft of the generator is in transmission connection with a rotating shaft of the power generation impeller; the mounting mechanism is used for mounting the power generation impeller on a pipeline and enabling a rotating turbine in the power generation impeller to be in contact with a medium in the pipeline, and the mounting mechanism comprises a mounting pipe communicated with the pipeline; according to the device, the fixed arc plate and the butt joint arc plate are matched with the mounting pipe, so that the water leakage position of the pipeline can be effectively maintained, namely, while the device is convenient to maintain the pipeline, a sensor, a power generation impeller, a power generator and other structures can be effectively mounted to monitor the pipeline, and special water cut-off for mounting the sensor or a power generation device is not needed.