163 results about "Drainage volume" patented technology

The invention discloses an open-hole horizontal well multi-cluster sliding sleeve staged fracturing string and a fracturing method thereof. According to the invention, a ball-throwing open type multi-cluster sliding sleeve is introduced on the basis of an existing mature open-hole horizontal well staged fracturing technology, wherein the main method comprises the following steps of: installing a plurality of groups of multi-cluster sliding sleeves in each packed-off interval, after finishing the installation, opening the plurality of groups of multi-cluster sliding sleeves step by step in a packed-off interval by throwing a ball, and matching with a standard ball-throwing open type sliding sleeve so as to isolate each fractured interval. According to the novel process, a plurality of major fractures can be formed in each packed-off interval, the reservoir transformation intensity is high, the drainage volume is expanded simultaneously, the defect that a sliding sleeve is mounted in each packed-off interval to form only one major fracture during the existing open-hole horizontal well staged fracturing is solved, the fracturing effect is greatly improved, and the yield of an oil-gas well can be furthest increased simultaneously.

The invention relates to a pressure and water reduction construction method of ultra-deep foundation pit confined water, which is characterized in that field survey and test are performed to obtain the osmotic coefficient of a water-bearing stratum in the field, the quality of a formed hole is ensured by adopting a gas-lift reverse circulation guide pipe, a well casing structure is optimized, the geological conditions of the field can be adapted with a short filter, a tap is ensured to be deeply descended, and the water discharging amount is ensured at the same time. The invention has optimal water reduction effect, reduces influence on peripheral environments without high-power pumping equipment in the water reduction process, reduces energy consumption reduction, is convenient for construction and is especially suitable for the field with a thicker pebble layer, higher permeability and abundant water amounts.

The invention discloses a GMS-based (groundwater modeling system) forecast method for ground water seepage fields at different mining levels of a mining area. The method comprises the steps that through performing analytical investigation on hydrogeological conditions of an area, boundary conditions and water containing bodies are generalized, ground water runoff conditions are analyzed, and coefficients of each source sink term are determined; the GMS is adopted to perform finite difference grid division on a simulation area, an initial water head is determined based on the water level of an observation well, hydrological parameters of each simulation sub-area are determined based on a pumping test and the provided data, hydrological module types of the source sink terms in the area are analyzed, assignment is performed on a corresponding hydrogeological map layer by combining the determined source sink term coefficients, and then a subarea map of the osmotic coefficients at different mining levels is obtained; prediction models for ground water seepage fields of a mining area are established based on GMS, and the observation data is utilized to adjust the hydrogeological parameters of the models, and finally, simulation is performed by combining with the discharge capacities at different mining levels to obtain the ground water seepage fields at different mining levels. The method has the advantages of convenience in operation, excellent three-dimensional visualization function and reliable result.

The invention discloses an urban river surge flood control and drainage dynamic forecasting control method. The method comprises the following steps that firstly, real-time rainfall data in a drainage basin is collected; secondly, the real-time rainfall data is transmitted and received through GPRS communication; thirdly, an underlying surface type is determined according to a satellite image, and CN values of all areas are obtained through checking according to the underlying surface type and a CN experience value table; fourthly, the volume of a flood is calculated based on a drainage basin rainfall-runoff model; fifthly, a water surface profile and the drainage volume of a pump station are calculated and forecast based on a river surge one-dimensional water flow mathematic model for coupling water gate overflowing and drainage of the pump station; sixthly, the volume of river surge flood propagation and drainage hydrological parameters are forecast in real time. By means of the urban river surge flood control and drainage dynamic forecasting control method and system, the river surge flood control and drainage situation can be effectively, accurately and dynamically forecast in real time, and urban river surge management and design can be easier.

The invention discloses a pressure plate instrument capable of directly measuring the volume change of a soil sample. The instrument consists of a pressure container, a horizontal displacement sensor, a vertical displacement sensor, a sensor bracket, a high air inlet value ceramic plate, a base, the soil sample, a drainage volume measuring device and an upper cover of the pressure container, wherein the drainage volume of the soil sample can be measured by the drainage volume measuring device; the horizontal displacement sensor and the vertical displacement sensor which are arranged on the sensor bracket can be used for measuring the deformation of the soil sample in horizontal and vertical directions in the testing process; and the volume and volume strain of the soil sample can be accurately calculated through the deformation value of the soil sample in horizontal and vertical directions.

This invention relates to a gliding underwater embarkation platform that can be extensively used in water quality monitoring of water mass, underwater resource survey and environmental monitoring. It mainly comprises of a gliding housing, a variable buoyancy system, a gesture adjustment system and a communications guiding system. During operation, the gesture adjustment hydraulic pump will be applied to control the back and forth flow of mercury in the system in order to change the position of the center of gravity. Due to the assistance of the micro-electromagnetic valve and micro pump of the variable buoyancy system, the water drainage volume of the oil bag will be changed to realize the buoyancy variance, so as to make the free gliding in the sea with the combination of the three.

The invention relates to a double-body small-water plane hydrofoil combined high speed ship, belonging to ship engineering technical field, comprising: bottom main bodies of left and right piece bodies, posts, connection bridge, front and rear water wings and front and rear water wing posts, the bottom main bodies are connected with the connection bridge through the posts, and simultaneously the front and rear water wings are arranged front and rear between the bottom main bodies, respectively, the front and rear water wings are respectively provided with the front and rear water wing posts to connect with the connection bridge. The invention depends on the lift force of the water wings bears to bear part of hydrostatic floating force, able to correspondingly reduce drainage volume of the bottom bodies and wet surface area, rising wave resistance and frictional resistance, and thus raising the speed, and the invention can normally and safely sail at high speed.

The invention relates to a drainage set, which comprises a drainage main pipe and a puncture component; drainage holes penetrating the wall of the drainage main pipe are formed in the front end of the drainage main pipe; the rear end of the drainage main pipe is provided with a drainage joint; the drainage main pipe comprises an outer pipe and an inner pipe, wherein the outer pipe has biocompatibility and relative flexibility; the inner pipe is contained in the outer pipe; the hardness of the inner pipe is higher than that of the outer pipe, and the support force of the inner pipe is stronger than that of the outer pipe; the inner pipe is provided with a blockage discharge structure. According to the drainage set, not only can the drainage main pipe be safely and softly fitted with human tissue but also the maximum drainage volume and the good support force under limited pipe diameter under the action of pressure are ensured; a higher drainage volume is reached by a smaller wound; blockage can be effectively discharged by the internal blockage discharge structure; meanwhile, through a spring structure at a head part, operating personnel can be prevented from being damaged, and the inner cavity of the tissue is protected from damage of excessive puncture; moreover, the spring has a good support force, so that the drainage set has a deflation prevention function and a blockage prevention function.

The invention belongs to the technical field of oil sac-type underwater glider buoyancy control and provides an oil sac-type underwater glider buoyancy accurate control method. Due to the purpose of controlling the oil sac-type underwater glider to reach neutral hovering at any working depth in floating observation, a sea temperature salt density section model is built, a corresponding seawater density is outputted according to the inputted depth, the temperature salt density section model is combined, through a hydraulic pump control algorithm, the hydraulic pump is driven to adjust the drainage volume of the oil sac, the underwater glider is controlled to reach balance between the buoyancy and the gravity at any working depth, and besides, acceleration sensor signals and pressure sensorsignals are returned to a main control system as a sign of the underwater glider to reach the neutral hovering. The characteristics that the underwater glider can reach neutral hovering are highlighted, a new application method is provided for an underwater glider observation technology, the underwater glider thus can perform in-situ observation on the internal phenomena of the sea, and the observation result is more accurate and careful.

This invention discloses a boat and especially to the one suitable for sailing on ice, whose minimum water level and maximum water level left and right sides a quarter flow angle is between the twenty degrees and twenty six degrees to effectively decrease the resistance on the ice sailing and the push power needed by the boat motor and ensure the drainage volume of the boat.

The invention discloses a glaucoma valve and a glaucoma drainage device, and relates to the technical field of medical apparatus and instruments. The glaucoma valve comprises a pipe. Liquid can be drained by the pipe, and an adjusting component capable of adjusting the size of an outlet of the pipe is arranged in the pipe. The glaucoma drainage device comprises the glaucoma valve. The glaucoma valve and the glaucoma drainage device have the advantages that the size of the outlet of the pipe can be controlled by the adjusting component which is arranged in the pipe of the glaucoma valve, accordingly, the flow of the liquid in the pipe can be accurately controlled, the drainage volume of the glaucoma valve can be matched with repair procedures of the bodies of patients, and complications of glaucoma filtration surgery can be reduced.

The invention discloses a calculation method for displacement and displacement time in a dynamic precipitation process of a pressure-bearing partially penetrating well or well group. According to the calculation method, a specific calculation method for the displacement and the displacement time in a process of changing an initial water level of an underground water level of the pressure-bearing partially penetrating well or well group to a target water level is established according to the basic theory and basic law of underground water seepage on the basis of the existing calculation formula for daily displacement when a stable water level is kept in the precipitation process of the pressure-bearing partially penetrating well or well group by carrying out integration on a precipitation area. According to the calculation method, the current situation that the calculation of the displacement at a water level changing stage is dependent on experiences for a long time when the pressure-bearing partially penetrating well or well group is designed nowadays is changed, and the calculation and dynamic control on the displacement in the whole precipitation process of the pressure-bearing partially penetrating well or well group in engineering construction are realized.

The invention provides a siphoning type rainwater drainage and recovery system, which comprises a sediment trap and a rainwater drainage well. A sediment barrier strainer is disposed between the sediment trap and the rainwater drainage well. A well cover for a rainwater collection opening is disposed at the top of the sediment trap. A siphoning rainwater hopper is disposed in the rainwater drainage well. One end of a rainwater hopper drainage pipe is connected to the siphoning rainwater hopper, and the other end of the rainwater hopper drainage pipe is connected with a drainage stand pipe in a potential well through a first horizontal drainage pipe. The potential well is communicated with a rainwater collection well through a second horizontal drainage pipe. Air-water separation is achieved by means of the siphoning rainwater hopper. Rainwater diverted to the drainage stand pipe falls to result in siphoning, so that the rainwater is drained to the rainwater collection well at a high flow speed, and drainage volume and flow speed are increased greatly. Owing to the sediment trap, before the rainwater enters the rainwater drainage well, impurities such as sludge in the rainwater are separated to the sediment trap to facilitate cleaning, and blockage of a drainage system is prevented effectively.

The invention discloses a device for adjusting the drainage volume of ventricular cerebrospinal fluid based on intracranial pressure feedback. The device comprises a pressure sensor, a drainage tube, a programmed switch, a loading plate, a first electronic control system, a first power supply, a second electronic control system and a second power supply, wherein the drainage tube consists of a ventricle segment, a controlled segment and an abdominal cavity segment in sequence; the programmed switch is arranged in a groove on the loading plate at the controlled segment of the drainage tube, and is used for switching on/off a path on which the cerebrospinal fluid enters the abdominal cavity through the drainage tube; the pressure sensor is used for collecting the intracranial pressure; the first electronic control system is used for controlling the state of the programmed switch according to the state of intracranial pressure and transmitting relevant information to the second electronic control system; the second electronic control system is used for receiving and displaying information of the first electronic control system and sending instructions to the first electronic control system.

The project relates to an intelligent drainage well cover device comprising a well cover, a hard polyurethane float and a concentric-square-shaped water tank. rainwater flows in through a water inletin the upper part of the concentric-square-shaped water tank; a water outlet in the bottom of the concentric-square-shaped water tank starts to discharge water; when the water inlet speed is larger than the water outlet speed, the water level in the concentric-square-shaped water tank rises, the well cover is jacked up by the hard polyurethane float under the effect of buoyancy, and the drainage well is completely opened and the water discharge amount is increased; when the water draining speed at the drain hole in the bottom of the concentric-square-shaped water tank is larger than the waterinlet speed, the water level in the concentric-square-shaped water tank decreases and the well cover falls back and resets. With the increase or decrease of the incoming water, the water drainage volume is automatically adjusted by the water well cover, effectively preventing the road surface from ponding, eliminating the work of manually opening the manhole cover to drain the water after the roadsurface is seeper and eliminating the hidden danger of pedestrians falling after the manhole cover is opened.

The invention discloses a method for measuring the surface membrane penetration amount of a sand-gravel material triaxial sample by a digital image technology, belonging to the technical field of geotechnical tests. The method includes the following steps of: in a conventional triaxial isotropic consolidation test, obtaining a deformed image of a triaxial sample at the completion of each stage ofloading and consolidation, obtaining the skeleton volume deformation of the triaxial sample after the processing of digital image correlation technologies, and then constituting a basic theory from the skeleton deformation area of the triaxial sample body and the rubber membrane penetration area according to the total drainage volume of the triaxial sample body to calculate the change amount of the rubber membrane penetration area with the confining pressure. The scheme of the invention only needs a conventional triaxial tester and a single-lens reflex camera, and is simple in equipment. The method of the invention is fully coupled to the conventional triaxial isotropic consolidation test without additional ancillary tests. The method belongs to a full-surface non-contact measurement method, and can realize the non-contact measurement of the axial deformation and radial deformation of the full surface of the triaxial sample body, cannot cause any interference to the triaxial sample body in the measurement process, ensures the accuracy of subsequent test results, and has good promotion value.

The invention discloses a water level and quality jointly controlled drain device of a farmland underground drain pipe, relates to a water level and quality jointly controlled drain device of a gate of a farmland underground drain pipe, and belongs to the technical field of agricultural soil and water engineering. The upper end of a floating ball device is provided with a spring piece control device which is connected with a water quality detection device, and the lower end of the floating ball device is connected with the gate which is provided with an underground pipe transversely, and the height of the gate is greater than that of the underground pipe. The water level and quality jointly controlled drain device can control the underground water level according the growth needs of crops, and control the automatic opening of the gate and drainage volume according to the water level and quality of underground water of a farmland, thereby ensuring that a soil reservoir can give a full play to a water storage and discharge function, implementing underground water management and preventing widespread pollution due to nitrogen and phosphorus loss in the farmland. The drain device has the advantages of realizing the multi-target control of farmland drainage, reducing agricultural non-point source pollution, along with simple structure and easy popularization.

An orifice nozzle-type steam trap, a Venturi nozzle-type steam trap, and/or a tunnel-structured resistance tube-type steam trap are provided capable of coping with a change in the discharged amount of a drain due to, for example, a variation in the amount of steam used resulting from the operating condition of steam-based equipment, seasonal external factors and/or a variation in the working pressure difference between the inlet and outlet of a steam trap. A strainer filter can be provided that eliminates strength insufficiency due to the miniaturization of strainer screens of these nozzle-type steam traps, retains the forms of the screens, allows the screens to be easily attached to and detached from the strainers, and/or makes maintenance, such as screen cleaning, easy. The orifice nozzle-type, Venturi nozzle-type, and tunnel-structured resistance tube-type steam traps include, for example, a drainage volume adjusting mechanism which is a piping structure in which the height difference between the drain vent and the non-drain system vent of a Venturi nozzle is variable. In addition, the strainer filter includes, for example, a support body for reinforcing the rigidity of a screen attached to a strainer disposed on the inner side and/or the outer side of the screen.

The invention discloses a water level controller for a farmland drainage tube. The water outlet of the farmland drainage tube (4) is provided with a water level control cabinet; the water level control cabinet comprises a cabinet body (1), a flow diaphragm trench (2) and one or more flow diaphragms (3); the cabinet body (1) is provided with a flow inlet (5) communicated with the water outlet of the farmland drainage tube (4), a waterspout (7) communicated with a ditch (6) and a drainage pipeline (8); and the flow diaphragm trench (2) is arranged in the cabinet body (1), and the one or more flow diaphragms (3) can be longitudinally arranged in the flow diaphragm trench (2) in a superposed mode. The water level controller can control the underground water level and displacement based on the crop growth requirement, and the farmland water level can be controlled by increasing or decreasing water level diaphragms in the water level diaphragm trench in the water level control cabinet; and by drainage control, the crop growth environment is effectively improved and the water resource utilization factor is enhanced.

The invention relates to a drainage monitoring system and method based on image recognition. According to an exemplary embodiment, the drainage monitoring system comprises at least one video acquisition device, an image processing module, and a monitoring module, wherein the video acquisition device is used for acquiring video stream data of a drainage liquid; the image processing module is connected with the at least one video acquisition device, and is used for receiving the video stream data and processing the video stream data to obtain drainage data of the drainage liquid; and the monitoring module is connected with the image processing module, and is used for receiving and monitoring the drainage data; and meanwhile, a central monitoring module is arranged on the monitoring system, and is used for monitoring monitoring data of a plurality of the monitoring modules in real time. The monitoring device can centrally monitor multiple drainage data such as drainage volume, color, turbidity and the like of the drainage liquid, monitor relevant data and start alarm, so that the work burden of medical staff is effectively reduced, and the medical risks are reduced.

The present invention is directed to a formed construction element for providing drainage from beneath an entry door threshold. The formed construction element comprises a rectangular base having left and right sidewalls, a back wall and a front edge to which a front flange attaches. The rectangular base is adapted for attachment to a subfloor and for receiving a threshold. Further, the rectangular base has an upper planar surface comprising a plurality of channels extending from the back wall to the front edge, and the channels are pitched to carry fluid by gravity flow from the back wall front edge of the rectangular base. The front flange comprises a plurality of vertically oriented ribs for creating a drainage volume between the front flange and an attached kickboard.

The invention provides an adjustable glaucoma drainage tube.The adjustable glaucoma drainage tube comprises a hollow wide rubber tube arranged close to the equator portion of an eyeball, a movable inner core and a thin drainage tube body.Inner tubes with the same length are arranged in the hollow wide rubber tube in the length direction of the hollow wide rubber tube.Several micropores perpendicular to the inner tubes are formed in the wall of the hollow wide rubber tube to make the inner tubes communicate with the outer portion of the hollow wide rubber tube.The tail end of the thin drainage tube body is communicated with the inner tubes of the hollow wide rubber tube, and the front end of the thin drainage tube body is inserted in an anterior chamber.The front end of the movable inner core swells to prevent aqueous fluid from continuing to be drained to the far ends of the inner tubes of the hollow wide rubber tube.After an operation, the length of a cavity in the front end of the hollow wide rubber tube is adjusted by adjusting the position of the movable inner core, and then the aqueous fluid drainage volume is adjusted; the movable inner core is pulled out to increase the volume of the aqueous fluid drained into inner cavities of the hollow wide rubber tube, and the intraocular pressure of orbital tissue is reduced; when the movable inner core is pushed to the near end, the volume of the aqueous fluid drained into the inner cavities of the inner tubes is reduced, and then the intraocular pressure is increased.According to the device, the aqueous fluid drainage volume can be adjusted according to clinical needs after the operation, half quantitative adjustment can be carried out, and therefore the purpose of adjusting the intraocular pressure is achieved.