97 results about "Drainage design" patented technology

The invention discloses a backwater side seepage drainage and pressure reduction anti-seepage method based on a built sandy soil embankment foundation, and relates to the field of hydraulic engineering embankment seepage control. The technical problems that in existing sandy soil embankment foundation seepage drainage design, due to dynamic change of soil layer permeability, the drainage effect is poor, and slope stability is difficult to guarantee are solved. The method comprises the following steps: establishing a seepage field model through a three-stage hydraulic fracture test, and measuring a permeability coefficient, critical pressure and a failure criterion; the groove is dynamically excavated in three stages, the excavation depth and the slope gradient are corrected in real time according to actually measured data, and the shape of the groove is verified through a model; and finally, laying an inverted filter layer, a drainage body and an anti-scouring layer, wherein the permeability coefficient of the inverted filter layer and the aperture ratio of the drainage body are dynamically adjusted according to actually measured data. According to the method, accurate control over seepage drainage and pressure reduction of the sandy soil embankment foundation is achieved through dynamic coupling of testing, construction and a numerical model, and the method is mainly used for seepage treatment of the backwater side of a built embankment and slope stabilization and reinforcement.

The utility model relates to the technical field of outdoor protection boxes, in particular to an outdoor protection box with a drainage function, which comprises a box body, a box door is rotatably connected to the surface of the box body, a base is fixedly mounted at the bottom of the box body, an inclined table is fixedly mounted in the base, and a drainage plate is fixedly mounted between the box body and the base. And a limiting frame is fixedly mounted on the surface of the drainage plate. According to the utility model, a complete drainage system is formed through the top water collecting tank, the side flow guide pipe, the bottom inclined table, the drainage plate and the sponge body in the box body, rainwater is rapidly collected by the water collecting tank and is guided into the base through the flow guide pipe, the water is discharged out of the box by the inclined table by utilizing gravity, water permeation is prevented, and meanwhile, the drainage plate is combined with the sponge body; the multi-layer drainage design improves the adaptability of the protection box in a humid environment, effectively protects internal equipment, and prolongs the service life.

The utility model discloses a bathroom base plate and an assembly type integral bathroom, and belongs to the technical field of assembly type home decoration. The bathroom base plate comprises a base plate body pull groove brick and an enclosing plate. A water outlet is formed in one side of the base plate body, a frame is arranged on the periphery of the base plate body, the broaching groove bricks are laid on the base plate body, and a plurality of broaching grooves are formed in the top faces of the broaching groove bricks; the enclosing plate is arranged between the broaching groove brick and the frame, and the top surface of the enclosing plate is lower than the groove bottom of the broaching groove; a first notch used for avoiding the water outlet is formed in the enclosing plate. According to the bathroom base plate, the top face of the broaching groove brick can have a certain gradient, drainage is easy, the designed transverse broaching groove has the anti-skid function on the basis that drainage is conducted towards the two sides, and a user can keep standing easily. The water on the pull trough bricks can be evacuated to the surrounding plates on the periphery, a secondary drainage design is formed, the design is beneficial to drainage, and it is ensured that the large-flow drainage effect is achieved on a small slope.

The invention provides a Chicago rain pattern comprehensive rain peak coefficient calculation method based on geometric morphology of a rainstorm process, and aims to provide a theoretical basis and a calculation method system for Chicago rain pattern analysis in urban outdoor drainage design. According to the method, a comprehensive rain peak position coefficient of different rainfall durations is calculated by statistically analyzing a rain peak position coefficient of the rainfall durations and combining the same-frequency characteristics of the Chicago rain pattern, so that a traditional calculation method based on the early-stage influence rainfall and the rainfall duration weight is optimized. The method not only improves the efficiency of rainwater design work, but also adapts to the trend of improvement of urban drainage waterlogging prevention standards, and has important practical value and theoretical significance.

The invention belongs to the technical field of constructional engineering, and particularly relates to a basement bottom plate partitioned water filtering channel performance evaluation method. The method comprises the following steps: firstly, based on geological conditions of a target project and basement structure parameters, establishing a three-dimensional seepage geometric model comprising a basement bottom plate and a surrounding soil layer; then, corresponding hydraulic parameters are given to all soil layer materials and water filtering channel materials in the model; then, setting at least two calculation working conditions and carrying out steady-state seepage calculation under different underground water level conditions; and finally, comparing and analyzing the evaluation indexes of different working conditions, evaluating the performance advantages of the partitioned water filtering channel compared with a traditional drainage mode, and carrying out parameter sensitivity analysis and parameter selection. According to the method, the drainage performance of the basement bottom plate can be remarkably improved, the maximum pore water pressure below the bottom plate is reduced, the average seepage speed is increased, the drainage efficiency is improved, and scientific basis and technical support are provided for waterproof drainage design of the basement.

The invention relates to the technical field of ecological restoration, and provides an open-pit coal mine ecological restoration device and method designed for polder ridges and water interception and drainage. The open-pit coal mine ecological restoration device comprises a carrier used for hanging an ecological restoration operation machine tool, and the carrier is provided with a frame used for crossing over the polder ridges / water interception and drainage channels; the frame is symmetrically provided with a plurality of ground supporting assemblies used for being supported on the ground to enable the carrier to rise. The ecological restoration device further comprises a span moving assembly used for driving the rising carrier to move along the frame to cross over a polder ridge or an interception and drainage channel. When a user needs to cross over the polder ridge / interception drainage channel, the position of the carrier is adjusted firstly so that the frame can cross over the polder ridge / interception drainage channel, then the carrier is lifted by a certain height on the supporting ground through the ground supporting assembly, and then the lifted carrier is driven by the span moving assembly to move along the frame so as to cross over the polder ridge / interception drainage channel. And finally, the ground supporting assembly is reset, so that the carrier wheel body touches the ground, and the polder ridge / interception and drainage channel crossing action is completed.

The location of auxiliary drainage systems in a field is mechanically designed based on field preparation information. [Solution] The auxiliary drainage design method (S1) includes an acquisition step (S11) of acquiring the boundary line of the target field, a cut-and-fill construction map showing the extent of cut and fill of the field, and the location of the field's drainage outlet; a reference drainage line generation step (S12) of searching for the longest straight line from the drainage outlet location to the boundary line and generating it as a reference drainage line; a first auxiliary drainage line generation step (S13) of rotating the reference drainage line by a predetermined angle with respect to the reference drainage line centered on the drainage outlet location to generate a first auxiliary drainage line from the drainage outlet location to the boundary line; and a second auxiliary drainage line generation step (S14) of generating a plurality of second auxiliary drainage lines from the reference drainage line to the boundary line, taking into account the extent of the fill.

The utility model relates to the technical field of freezer shelf glass, and discloses a foldable shelf glass device for a freezer, which comprises a freezer body, the inner wall of the freezer body is fixedly connected with a limiting bolt, the inner wall of the freezer body is fixedly connected with a fixed transverse column, the surface of the fixed transverse column is hinged with a rotating support plate, and the rotating support plate is fixedly connected with the limiting bolt. The surface of the rotating supporting plate is fixedly connected with a first storage rack, and a liquid leakage groove is formed in the first storage rack. The hooks are arranged to be in contact with the inner wall of the freezer, the rotary supporting rods are inserted into the limiting clamping frames to form mechanical interlocking, the first shelf and the second shelf are made of glass materials, metal limiting components are combined, and through a foldable structure, an efficient drainage design, a linkage fixing mechanism and humanized operation components, the storage rack is convenient to use. The three core advantages of space saving, stability improvement and convenience in cleaning of the freezer shelf are achieved, meanwhile, transparency, visualization and corrosion resistance are considered, and the freezer shelf is suitable for diversified storage requirements of household and commercial freezers.

The utility model relates to the technical field of industrial dust removal, in particular to an industrial dust removal device, which has the waterproof and drainage design and the capability of dealing with severe weather, a plurality of water bins and an efficient drainage system are arranged at the bottom of the device, water is drained orderly through an inclined plane and a connecting pipe, and a baffle effectively blocks external accumulated water. The drying bin and the electric heating device can remove moisture and residual moisture in the device, the stability of the device is improved, the service life of the device is prolonged, and the device is high in adaptability, capable of normally working in severe weather such as rainstorm and the like, simple and convenient to maintain and capable of reducing operation cost. Generally speaking, the utility model has the characteristics of high-efficiency drainage, flexible adaptation and easiness in maintenance, and the performance and reliability of the industrial dust removal device are obviously improved.

The invention relates to the technical field of road traffic safety and drainage design, in particular to a road guardrail base with anti-collision and drainage functions, the road guardrail base comprises a top connecting structure, a bearing structure and a drainage notch, the top connecting structure is fixedly connected with a concrete guardrail through embedded steel bars, the bearing structure is located below a pavement structure, and the drainage notch is located below the bearing structure. The drainage opening is formed in the top connecting structure, and the drainage opening is used for assembling a transverse water collecting ditch; the top connecting structure and the bearing structure are arranged at the top of the retaining wall, and the ground cloth difformis and the retaining wall can move relatively; the transverse water collecting ditch comprises an inlet and a drainage part, the drainage part is used for draining water transmitted at the inlet, and the inlet is formed between the transverse water collecting ditch and the concrete guardrail; longitudinal blind ditches are formed in the pavement structure and are in through connection with the drainage parts of the transverse collecting ditches through drainage pipes; therefore, under the condition of saving consumables, the influence of vehicle collision on the retaining wall is reduced through the ground cloth dips, and meanwhile the drainage capacity of a road is improved.

The invention discloses equipment and a method for testing stability of a tower footing under different scouring and soaking working conditions, the equipment comprises a support, a water supply device, a test device and a purification device are arranged on the support, one end of the test device is connected with the water supply device, and the other end of the test device is connected with the purification device; the adjusting device is also arranged on the bracket, is positioned at the top of the purifying device and is connected with the testing device; the control device is electrically connected with the water supply device, the purification device and the adjusting device; wherein the test device is used for placing a test soil sample and a tower footing, the water supply device is used for conveying a water source into the test device, the purification device is used for purifying the water source flowing out of the test device, and the adjusting device is used for adjusting the operation angle of the test device, so that a scientific basis is provided for waterproof and drainage design of the tower footing in actual engineering; and the problem of tower footing instability caused by underground water level change is avoided.

The invention discloses a large-span hyperbolic roof landscape drainage design method and system, and the method comprises the following steps: 1, simulating the real conditions of the slope of a basic site and the rainfall runoff based on a BIM model and according to the rainfall runoff stress principle through a circulation algorithm, and carrying out the visual analysis; 2, performing rule summarization and extraction on simulation and visual analysis results to obtain main flowing and converging routes of rainwater and variation differentiation of unit rainwater flow and flow velocity; and 3, designing a landscape drainage system of the large-span hyperbolic roof according to result characteristics of GH and BIM technical analysis. The invention relates to the technical field of constructional engineering, and can solve the problem of drainage defects of a traditional large-span hyperbolic roof landscape drainage design.

The application discloses a kind of installation systems of building integrated photovoltaics, the present application is by being provided with waterproof support assembly and horizontal guide rail, several photovoltaic units are slidably fixed on horizontal guide rail;Walking board is fixed between photovoltaic unit, personnel walking can be realized to realize the maintenance of photovoltaic unit;Photovoltaic panel is locked and positioned on the supporting plate by elastic bottom support, side baffle, pressing lock, and horizontal positioning assembly is arranged between adjacent brackets, and the horizontal movement of entire photovoltaic unit can be realized by artificial driving to realize the whole photovoltaic unit and the maintenance and maintenance and cleaning of roof by personnel, avoid the permanent damage caused by the building cannot be repaired;Photovoltaic panel arranged in the interior can be repaired or replaced flexibly, and the operation is simple;Waterproof and drainage design is realized, rainwater intrusion is reduced as far as possible, because the roof for installing photovoltaic panel is poor in moisture removal, this design can reduce the corrosion progress of roof, reduce the risk of house leakage.

The invention discloses a TBM (tunnel boring machine) descending construction shield water interception and drainage system, a shield structure, a main machine, equipment and a method. According to the water interception and drainage structure, a water stop ring with elastic tension at least towards the outside of the ring is arranged on the lower side of the rear portion of a front shield, and the water stop ring is provided with a connecting body and a continuous skirt part connected to the connecting body; the skirt portion in the peripheral direction of the anterior shield fits the roadway wall at least during operation to limit liquid flow in the forward direction of the anterior shield. The structure is simple, the shield structure design is optimized, the water blocking and drainage design is introduced for the situation that in the TBM descending tunneling process, liquid such as underground water can be accumulated, and consequently a cutter head falls or a cutter is pasted easily, and therefore the safety and stability of underground tunneling operation are guaranteed.

The application discloses a kind of foundation pit water inflow multi-source data intelligent prediction method, comprising: obtaining the depth of dewatering inside foundation pit, water level outside foundation pit, water pressure at different depths, actual water inflow and soil permeability coefficient;Determine the calculation area, and establish the control equation describing steady-state groundwater seepage and its corresponding constant head, constant flow boundary condition, while clearly defining the area continuous condition on both sides of foundation pit enclosure structure;Build depth learning neural network inside and outside foundation pit;Total loss function is constructed;Minimize the loss function using a phased optimization algorithm, thereby training network;Finally, the trained network is used to quickly and accurately predict water head distribution and water inflow inside foundation pit.The present application realizes the deep integration of physical mechanism and data-driven method, while ensuring that the prediction results strictly comply with physical laws, reduces the dependence on a large number of observation data, improves the accuracy and reliability of prediction, and provides better decision support for foundation pit dewatering design.

The invention relates to the technical field of curved surface runoff analysis, in particular to a data analysis method for rainwater runoff on multiple curved surfaces. Comprising the following steps: S1, establishing a plurality of curved surfaces on Grasshopper according to a to-be-analyzed building roof; s2, randomly generating raindrops above the plurality of curved surfaces, and enabling the raindrops to vertically fall down; s3, when the raindrop is in contact with the curved surface, generating a unit circle around the raindrop, and projecting the unit circle to the curved surface to form a projection curve; s4, judging whether the projection curve is closed or not; s5, when the projection curve is not closed, whether the raindrop reaches the edge of the curved surface or not is judged; s6, the steps from S3 to S5 are repeated, and a continuous flowing path of the rainwater is generated. The method has the beneficial effects that the approximate direction of the normal vector of the raindrops on the multiple curved surfaces is subjected to fuzzy calculation through a regional sampling method, the natural flowing direction of rainwater is judged, the calculation is continuously circulated to form the flowing path of the rainwater, and the continuous flowing path of the rainwater on the building roof is simulated and analyzed; and a reference basis is provided for drainage design of the building roof.

The invention relates to the technical field of ring main units, and discloses an environment-friendly primary and secondary fusion ring main unit which comprises a ring main unit fixedly mounted on a base, and further comprises a vertical shaft arranged on the base and located on the front side of a box door of the ring main unit; the lifting device is arranged in the vertical shaft and comprises an air cylinder arranged in the middle of the vertical shaft, a lifting plate is fixed to the top end of a push rod of the air cylinder, and the lifting plate ascends and descends on the vertical shaft; an evaporator pipeline of the air conditioning system is located in the outer box, and a condensation pipe of the air conditioning system is arranged at the bottom of the vertical shaft and fixed to the side wall of the bottom of the vertical shaft; the drainage channel is arranged in the base and communicated with the bottom of the vertical shaft. The device has the advantages of integrating lifting, drainage and refrigeration functions and improving maintenance convenience, air conditioner heat dissipation efficiency and drainage capacity, and solves the problems that high parts of an existing ring main unit are difficult to maintain, an air conditioner condenser is low in heat dissipation efficiency, and drainage design defects exist.

The utility model discloses a sewage pretreatment device for municipal water supply and drainage design, and relates to the technical field of drainage, the sewage pretreatment device for municipal water supply and drainage design comprises a treatment box, the top of the treatment box is provided with a slideway, the inside of the slideway is slidably connected with the slideway, and one side of the treatment box is fixedly provided with a motor; a threaded rod is installed at the output end of the motor, the surface of the threaded rod is in threaded connection with the interior of a moving block, a moving box is fixedly connected to the bottom of the moving block, a connecting pipe is fixedly installed at the bottom of the moving box, and a liquid discharging pipe communicating with the interior of the connecting pipe is fixedly installed at the bottom of the connecting pipe; and a plurality of large gears drive a plurality of rotating shafts to rotate, so that a plurality of dispersing blades rotate, the liquid medicine discharged by a liquid discharging pipe is dispersed conveniently, the liquid medicine is dispersed in the treatment box conveniently, sewage is pretreated conveniently, and full contact between the liquid medicine and the sewage is improved.

The invention provides a composite filler bioretention pond and a rainwater mineralization method.The bioretention pond comprises a super high-rise layer, a water storage layer, a covering layer, a filler layer and a dynamic drainage layer which are sequentially arranged from top to bottom, a spiral pipe is filled with the filler layer to form a spiral flow channel, and the spiral flow channel is filled with composite filler. According to the invention, the spiral flow channel type filler layer and the composite filler have a synergistic effect, so that the pollutant removal efficiency is improved; through the spiral flow channel composite filler and intelligent drainage design, efficient mineralization and low-cost treatment of rainwater are achieved. Operation data shows that the calcium ion concentration is increased by 35%, the COD removal rate is larger than or equal to 85%, the ammonia nitrogen removal rate is larger than or equal to 90%, the investment intensity is reduced by 63%, and the method is suitable for islands, urban green lands and other scenes.

This invention discloses a bank protection reinforcement device for soil and water conservation, belonging to the field of water conservancy engineering technology. It includes a protective main body, with matching slots and blocks on both sides of the top for detachable horizontal splicing of multiple main bodies; the top also has two vertically adjustable support structures to adapt to uneven ground; the front end is a 60-degree slope with multiple through holes, into which fixing structures are movably inserted. The fixing structure includes a fixing column with a drainage channel, and the fixing column has a slot and drainage outlet communicating with the drainage channel, guiding soil moisture out while anchoring the bank protection. This invention, through modular splicing, adjustable support, and integrated anchoring and drainage design, solves the problems of poor adaptability, difficult maintenance, and high seepage pressure in traditional bank protection installations, significantly improving the stability and construction efficiency of bank protection.

The VRF air-conditioning system comprises a VRF air-conditioning system body, and the VRF air-conditioning system body comprises a water supply design platform, a drainage design platform, an air-conditioning engineering design platform, a heating and ventilation professional design platform and an air-conditioning energy-saving design platform; the water supply design platform is used for carrying out water supply design on water required by the VRF air conditioning system body; the drainage design platform is used for carrying out drainage design on water required by the VRF air conditioning system body; the air conditioner engineering design platform designs a cold source and a heat source of an air conditioner according to the load requirement of the VRF air conditioner system; the ventilation design platform is used for designing the ventilation quantity required by different mounting positions of the VRF air conditioning system; the ventilation design platform and the heating and ventilation professional platform are arranged to design the ventilation quantity required by different installation positions of the VRF air conditioning system and design wind prevention, air exhaust and fire protection related facilities, so that the ventilation quantity and the air conditioning load of the VRF air conditioning system meet the use requirements of people, and the practicability is high.

The utility model relates to the technical field of constructional engineering, and discloses a pipeline plate-penetrating fixing device for water supply and drainage design, which comprises a wall body, a mounting plate I is fixedly mounted at the top of the wall body, a mounting plate II is arranged at the bottom of the wall body, a sleeve is arranged between the mounting plate I and the mounting plate II, the sleeve is positioned in the wall body, and the mounting plate I and the mounting plate II are fixedly mounted on the wall body. And a pipeline is fixed in the sleeve. Through rotation of the second mounting plate, the control rod drives the moving rods to move along the moving grooves, the four sets of moving rods push the stabilizing blocks to clamp the outer wall of the pipeline, compared with a traditional device, through arrangement of the first mounting plate, the sleeve is fixed firstly, then through rotation of the second mounting plate, the stabilizing blocks clamp and stabilize the pipeline, and therefore the outer wall of the pipeline is fixed. And finally, the second mounting plate is fixed through a fastening bolt, it is guaranteed that when the thickness of the wall is large, the pipeline is not prone to shaking in the sleeve, and noise generated when the pipeline is transported is further reduced.

The present application relates to the field of water conservancy technology, and in particular to a dam safety monitoring method and system. The method comprises: obtaining historical rainfall data, topographic data, and the installation location of a monitoring device for a dam; inputting the historical rainfall data and topographic data into a fluid dynamics model to simulate the flow path of rainwater; predicting the monitoring accuracy of the monitoring device based on the simulated flow path, the drainage design parameters of the dam drainage structure, and the installation location of the monitoring device; updating the installation location of the monitoring device and / or updating the drainage design parameters of the dam drainage structure if the monitoring accuracy is determined to be less than an accuracy threshold; and performing safety monitoring of the dam based on the updated installation location of the monitoring device and / or the updated drainage design parameters of the dam drainage structure. The present application can improve the monitoring reliability of the monitoring device.

The present invention relates to the technical field of tunnel drainage design, and specifically to a tunnel drainage structure and design method based on a maintenance cycle, comprising: obtaining tunnel groundwater environmental parameters; calculating the crystallization deposition rate of groundwater in a tunnel longitudinal drainage pipe; calculating the crystallization deposition amount of the tunnel longitudinal drainage pipe within the maintenance cycle according to the crystallization deposition rate; comparing the crystallization deposition amount of the tunnel longitudinal drainage pipe within the maintenance cycle with the crystallization deposition standard, obtaining the tunnel drainage pipe parameter relationship, and designing the tunnel drainage pipe based on the parameter relationship; the beneficial effect of the present invention is that the method aims to construct a tunnel drainage system design method from the life cycle and maintainability dimensions of the drainage system, thereby enhancing the controllability of crystallization blockage of the tunnel drainage pipe.

The utility model relates to the related technical field of drainage pipeline fixation, in particular to a building water supply and drainage design pipeline penetrating plate fixing structure which comprises a fixing box. A cross-shaped pipe body is arranged at the top of the fixing box, and first clamping plates are arranged on one sides of the four ends of the cross-shaped pipe body. Under the cooperative action of the fixing box, the cross pipe body, the first clamping plate, the second clamping plate, the first rotating shaft and the linkage mechanism, the device can clamp the four ends of cross pipes of different specifications at the same time, the use range of the device is widened, practicability is improved, and the device is suitable for popularization and application. The problems that although an existing building water supply and drainage design pipeline plate-penetrating fixing structure can clamp a cross-shaped pipeline, the radian of the interior of a clamping block of the structure cannot be adjusted, only the cross-shaped pipeline of the specific specification can be clamped and fixed, the application range is small, and practicability is poor are solved.

The present invention provides a two-embankment, three-channel zoned sediment drainage design method for reservoirs on plains with high sediment content, including the following steps: Step 1: Calculating the target river channel's regulated width based on hydraulic methods; Step 2: Designing the target river channel's two-embankment, three-channel zoned morphology based on the target river channel's current channel morphology and the regulated width; Step 3: Determining the zoned sediment drainage scheduling and application methods for flood and non-flood seasons based on the design results; Step 4: Analyzing the sediment drainage effects under different sediment drainage scheduling and application methods. Adopting a "two-embankment, three-channel" zoned sediment drainage design for reservoirs on plains with high sediment content can address the problem of rapid siltation and difficulty in restoring reservoir capacity, maintain effective storage capacity over the long term, extend the reservoir's service life, and consistently deliver comprehensive benefits for flood control, ecology, and water supply, playing a significant role in ensuring the long-term stability of the Yellow River.

The invention provides a roof aquifer water yield partitioning method, device and equipment and a storage medium, and belongs to the field of geological research, and the method comprises the steps: determining a plurality of main control factors affecting the water yield of an aquifer, and constructing a thematic map of each main control factor; the subjective weight of each main control factor is calculated by adopting an analytic hierarchy process, the objective weight of each main control factor is calculated by adopting a variable coefficient method, and the comprehensive weight of each main control factor is calculated through a combined weight formula based on the subjective weight and the objective weight; and performing normalization processing on thematic map data of each main control factor, performing weighted stacking on thematic maps of each main control factor after normalization according to a comprehensive weight to generate a water yield property index map, and performing partitioning on the water yield property of the aquifer by adopting a natural discontinuous classification method according to the water yield property index map to obtain a water yield property partitioning map. In this way, the area with the high water yield property can be recognized to provide a scientific basis for drainage design, the area with the low water yield property can be divided to guide arrangement of the mining working face, and resource waste is avoided.

The utility model relates to the technical field of daily utensils, in particular to a vacuum cup. A vacuum cup comprises a cup body and a suction nozzle arranged on the cup body, a check ring is arranged on the lower portion of the suction nozzle, a concave annular drainage cavity is formed in the upper portion of the check ring, and a drainage hole penetrating through the upper surface and the lower surface of the check ring is formed in one side of the check ring. And the thickness of the check ring is gradually increased from one side of the drainage hole to one side far away from the drainage hole so as to form a drainage inclined surface. According to the vacuum cup, the drainage cavity is designed on the suction nozzle, and the design of the drainage inclined plane is combined, so that when the vacuum cup is horizontally placed, water accumulated in the drainage cavity can flow from a high position to a low position and then flows back into the vacuum cup through the drainage hole, and the problem of water accumulation of the suction nozzle is solved. Meanwhile, by combining the solid heat transfer path design of the suction nozzle and the air interval and the drainage design of the cup bottom, the use effect of the vacuum cup can be better improved, and the service life of the vacuum cup can be better prolonged.

This invention discloses an integrated pipeline irrigation and drainage collaborative optimization model construction method and system, relating to the field of farmland water conservancy engineering technology. The method includes: acquiring basic data to determine irrigation and drainage design flow rates; constructing an initial pipeline network topology based on this, establishing a pipeline network life-cycle resource cost assessment function and hydraulic constraints; using a non-dominated sorting genetic algorithm to iteratively obtain a set of pipeline network configuration schemes; in drainage mode, acquiring actual water level receding time-series data; performing drainage simulation based on a hydrodynamic model to output simulated time-series data; retrieving the actual friction coefficient caused by sediment deposition within the pipeline with the goal of minimizing the error between the two; before switching to irrigation mode, feeding back the actual friction coefficient to the hydraulic constraints for re-optimization, and outputting a corrected water distribution strategy. This method can dynamically compensate for changes in pipe wall resistance caused by sediment, ensuring pump head matching and stable terminal water pressure. This invention also provides a collaborative optimization system for executing the above method.

The application discloses a flushing faucet arrangement method and device based on building water supply and drainage, and a medium, and belongs to the technical field of building water supply and drainage design, and is used for solving the technical problems that the existing building water supply and drainage design is more dependent on manual operation, and is prone to low efficiency, poor consistency, high error rate and complicated modification. The method comprises the following steps: performing position identification processing on a building water supply and drainage model related to a basement flushing faucet, and obtaining object type information to be arranged; performing distance position judgment on a sump area in the object type information to be arranged related to a surrounding wall type, and obtaining a first flushing faucet arrangement strategy; performing distance position judgment on a door position area related to the surrounding wall type, and obtaining a second flushing faucet arrangement strategy; and determining a flushing faucet arrangement strategy of the building water supply and drainage model based on the first flushing faucet arrangement strategy and the second flushing faucet arrangement strategy.