17results about How to "Increase drainage area" patented technology

The utility model provides an atomizer and atomization equipment, and relates to the technical field of electronic atomization, the atomizer comprises a shell assembly, a liquid storage part, an atomization assembly and a liquid absorption part, the shell assembly comprises a containing cavity and an air outlet, the atomization assembly comprises a liquid guide part and an atomization core, the liquid guide part is arranged on the peripheral side of the atomization core, and at least part of the liquid guide part is inserted into the liquid storage part; the liquid guiding part is arranged in the containing cavity and is used for guiding the aerosol-forming matrix from the liquid storage part to the liquid guiding part in the first direction, the liquid absorbing part is arranged in the containing cavity and is arranged on the side, away from the air outlet, of the liquid storage part, and the side, facing the air outlet, of the liquid absorbing part makes contact with the liquid storage part and the liquid guiding part so that the aerosol-forming matrix can be guided from the liquid storage part to the liquid absorbing part; the aerosol forming substrate is guided from the liquid absorbing part to the liquid guiding part along the second direction, so that the liquid guiding area of the liquid guiding part is increased, the total amount of the aerosol forming substrate guided by the liquid guiding part in unit time is increased, the core pasting condition caused by insufficient aerosol forming substrate under the high temperature condition can be avoided, and the use feeling of a user is improved.

The invention discloses an offshore ultra-deep and large-displacement well building method and an offshore ultra-deep and large-displacement well structure. The offshore ultra-deep and large-displacement well building method comprises the steps that firstly, a phi 762 mm guide pipe is opened; secondly, a well hole with the diameter being 660.4 mm is formed, a surface casing with the diameter being 508 mm is put in, and well cementation is conducted; thirdly, a well hole with the diameter being 444.5 mm is drilled, a technical casing with the diameter being 339.7 mm is put in, and well cementation is conducted; fourthly, a well hole with the diameter being 311.2 mm is formed, a production casing with the diameter being 244.5 mm is put into the well hole, and well cementation is conducted; and fifthly, a well hole with the diameter being 215.9 mm is formed, and well completion is conducted. The offshore ultra-deep and large-displacement well structure is manufactured through the offshore ultra-deep and large-displacement well building method, the oil drainage area of an oil reservoir can be effectively increased by applying the offshore ultra-deep and large-displacement well building method, and the marginal oil field yield is improved.

The present invention discloses a method for secondary diversion volume fracturing of horizontal seams and its application, the method comprising: injecting small-size ultra-low-density proppants to seal the seam ends to complete a primary diversion in the horizontal seam, then injecting small-size low-density proppants to fill the horizontal seams for secondary diversion, and then injecting fracturing fluid to fully extend the vertical seams. The present invention forms vertical seams on the basis of horizontal seams and effectively extends them, thereby increasing the overall transformation volume of the fractures, and completing a complex fracture network in which horizontal and vertical seams coexist through repeated operations. The fracture parameters and construction parameters are optimized and designed through reservoir numerical simulation and fracture extension simulation software, and the addition methods of fracturing fluids with different viscosities and proppants with different particle sizes are optimized, so as to finally form a complex fracture network with good conductivity, thereby improving the effects of post-fracturing production increase and stable production.

The application discloses a glaucoma drainage device and belongs to the technical field of medical devices. The glaucoma drainage device comprises a drainage sheet, the inside of which is a cavity structure, the drainage sheet is divided into a left cavity and a right cavity through a first partition plate, the upper surface of the left cavity is provided with a drainage hole, and the first partition plate is provided with a drainage opening; a drainage assembly is in communication with the inside of the drainage sheet through a connecting hole provided on the drainage sheet; and a fixing mechanism is arranged on the drainage sheet and used for fixing the drainage sheet and the drainage assembly. The glaucoma drainage device can fix the drainage assembly and the drainage sheet of the device through a mechanical fixing structure, avoids the problems of the suture fixation of the drainage device in the prior art, simplifies the operation process, shortens the operation time, reduces the complications caused by the suture foreign matter, and improves the fixing reliability and safety.

This invention discloses a method for producing low-temperature resistant plastic granules for pipes, comprising the following steps: Step 1, cleaning the waste material, and then adding the raw material to a high-speed mixer to obtain a premix; Step 2, adding the premix to a twin-screw extruder and heating it to a molten state for plasticization. This invention relates to the field of plastic granule preparation technology. In this method for producing low-temperature resistant plastic granules for pipes, wastewater is discharged into a circulation tank, driving a turbulence impeller to rotate. While the wastewater is filtered through a grading filter plate, a scraper removes dirt from the surface of the grading filter plate, preventing clogging. Furthermore, the drainage area of ​​the drainage channel can be increased by adjusting the water flow, increasing the water pressure and the impact force on the turbulence impeller, thus increasing the thrust on the scraper and improving the cleaning effect.

This invention discloses a gallbladder drainage stent for ERCP surgery, comprising an insertion tube, several sets of connecting ribs fixedly connected to the outside of the insertion tube, a communicating groove opened on the outside of the connecting ribs, several sets of rotating plates rotatably connected inside the communicating groove, a rotating block rotatably connected to the inner side of the outer end of the rotating plate, a support plate fixedly connected to the outside of the rotating block in the same group, sliding rods slidably connected to the inside of both sides of the support plate, contact plates fixedly connected to the outside of the sliding rods, several sets of connecting tubes fixedly connected between the contact plates, a through tube fixedly connected between the middle of the connecting tube and the inside of the insertion tube, and a fluid inlet opened on the outside of the connecting tube. The entire stent can be deployed and anchored with only one action, making the operation simple and quick, significantly shortening the operation time, reducing surgical risks and patient suffering.

The utility model relates to the technical field of separation, in particular to a road and bridge roadbed pavement drainage filtering structure which comprises a base plate and a plurality of filtering mechanisms arranged along the base plate, each filtering mechanism comprises a filtering panel, and a metal filter screen is detachably mounted at the top of each filtering panel. The filtering mechanism further comprises a drainage pipe vertically and fixedly arranged in the center of the interior of the filtering panel, a plurality of filtering holes are evenly formed in the outer wall of the drainage pipe in the circumferential direction of the drainage pipe, an annular groove is formed in the inner bottom of the filtering panel, a floating plate is movably arranged on the drainage pipe, and an anti-blocking assembly is arranged in the filtering panel. By means of the annular groove formed in the inner bottom of the filtering panel and the multiple filtering holes in the drainage pipe, the pipeline can be prevented from being blocked, the arranged floating plate can increase the drainage area when the multiple filtering holes are blocked, in addition, when the floating plate is subjected to downward external force of wheels, the floating plate drives the anti-blocking assembly to act, and therefore the anti-blocking effect is achieved. Therefore, the plurality of filtering holes are cleaned and brushed.

The utility model provides a graded drainage structure of a multi-stage safety injection pump, and relates to the technical field of nuclear power pumps. The graded drainage structure of the multi-stage safety injection pump comprises a pump cylinder, a center shaft, a suction section, multi-stage impellers and multi-stage middle sections, the center shaft is rotatably installed on the pump cylinder, and the center shaft is sleeved with the multi-stage impellers; the multiple middle sections are sequentially connected, and the suction section is connected with the first middle section in the multiple middle sections. The pump barrel is provided with a suction cavity corresponding to the suction section and an outlet cavity corresponding to the last-stage impeller in the multiple stages of impellers, the suction cavity is provided with a first drainage pipe set, and the outlet cavity is provided with a second drainage pipe set. By means of the design of the drainage structure, the drainage efficiency of water in the pump can be improved, water in the pump body can be drained more thoroughly, little waste water is left in the pump body, the follow-up detection work difficulty is lowered, and the overhaul work risk is lowered.

The present invention provides a side-drilling well completion device and method that can be selected without drilling and grinding. The side-drilling well completion device that can be selected without drilling and grinding includes a positioning and straightening device and a removable window opening device that can be selected without drilling and grinding. The positioning and straightening device is located in the wellbore to locate the exact position of the side-drilling well section and straighten the wellbore and casing. The removable window opening device that can be selected without drilling and grinding is located at the casing of the side-drilling oil layer part that needs to be opened. When drilling into the side-drilling well section that needs to branch, the removable window opening device that can be selected without drilling and grinding is opened by remote control to directly open the casing section that needs to be opened by side-drilling, without drilling and grinding the casing at the window opening part. The side-drilling well completion device and method that can be selected without drilling and grinding greatly reduce the drilling cost of the side-drilling well, improve the drilling efficiency, shorten the drilling cycle of the actual side-drilling well and the side-drilling horizontal well, and improve the investment efficiency and return rate. The labor intensity of the operators is reduced, and the operation time and cost are reduced.

The present invention discloses a waste liquid purification device for silicone resin production, and relates to the technical field of waste liquid purification. The present invention includes a device body, a driving assembly is arranged on the outer wall of the device body, a drain pipe is arranged on the bottom of the device body, an electric telescopic rotating column is rotatably installed at the center of the top of the inner wall of the device body, and an arc groove is opened on the outer wall of the electric telescopic rotating column, an I-shaped disk is fixedly installed at the bottom of the telescopic end of the electric telescopic rotating column, and the central axis of the I-shaped disk is designed to slide through, an arc sheet is fixedly installed at the inner edge of the I-shaped disk, a filter plate is fixedly installed on the outer wall of the telescopic end of the electric telescopic rotating column, and an anti-winding device for preventing silk thread-like dirt from winding in the waste liquid is arranged on the periphery of the electric telescopic rotating column. The present invention enables the telescopic end of the electric telescopic rotating column to drive the filter plate to move synchronously, so as to avoid the accumulation of dirt caused by the long-term erosion of dirty water on the filter plate, and prevent the local area of ​​the filter plate from being easily blocked, thereby reducing the filtering effect on sewage.

The invention discloses a drainage cover plate, and belongs to the technical field of drainage. Comprising rotary cover plates which are oppositely arranged on two sides of an opening of a drainage ditch, the supporting rotating devices are correspondingly arranged in the drainage ditch and are rotationally connected with the positions, close to the opposite ends, of the bottoms of the two rotating cover plates respectively; the water collecting tanks are located in the drainage ditch and are connected with the opposite ends of the two rotating cover plates through connecting pieces respectively; the interval between the opposite ends of the two rotary cover plates is a water leakage area matched with the water collecting tank, and a plurality of evenly-distributed drainage holes are formed in the side wall and the bottom of the water collecting tank. Manual operation is not needed, accumulated water on the road surface can be conveniently and rapidly drained into the drainage ditch, and the drainage efficiency is effectively improved.

The utility model relates to the technical field of floor drains, and discloses a mesh-cover-shaped in-pipe plug-in floor drain, which comprises a connecting part, the top of the connecting part is fixedly connected with a water leakage part, the water leakage part comprises connecting rings, connecting rods and a fixing frame, the connecting rings are fixed on the top side of the connecting part, the three connecting rings are arranged at equal intervals up and down, and the connecting rods are fixed on the fixing frame. And connecting rods are fixedly connected among the three connecting rings. According to the net-cover-shaped in-pipe inserting-pulling type floor drain, the connecting part is inserted into a drainage pipeline, after the whole is installed and inserted, the connecting part is completely located in the drainage pipeline, the connecting ring is attached to an end opening of the drainage pipeline, and during drainage, water flows through a leakage groove between the connecting rods and a hollow hole in the fixing frame and then enters the connecting part; the three-dimensional design facilitates interception of large objects, the leakage grooves are not prone to being blocked, the drainage area is large, and the drainage effect is remarkably improved.

The utility model discloses a high weatherability's windowsill drainage board structure, including drainage unit, and the drainage bayonet groove of recessing inwards is equipped with to the window frame and is located outdoor one side, and the drainage bayonet groove is located below the water passage hole of window frame, and its inner top wall is equipped with L type buckle, and one end of drainage unit is through L type buckle and is connected with the drainage bayonet groove, and its other end extends to the outside of outer wall veneer, and its bottom end sets along the top end surface of outer wall veneer to reach the purpose of drainage. The utility model discloses a high weatherability's windowsill drainage board structure, and this drainage board structure adopts physical structure and is connected with window frame to solve the leakage caused by the high dependence on sealant in the prior art, prevent after sealant aging, and the drainage area that can be used is increased by the slope surface of the top of this drainage board structure to the water diversion, thereby making drainage more smooth and improving drainage capacity, and this drainage board structure does not need to use screw and other fasteners to fix, thereby reducing the difficulty of installation.

The utility model discloses a rail and a sliding window. The rail comprises a rail body. The track body is provided with a first side wall, a second side wall and a bottom wall; the first side wall and the second side wall are oppositely arranged, and a first guide groove is defined by the first side wall, the second side wall and the bottom wall; a first drainage hole is formed in the first side wall, a drainage groove is formed in the bottom wall, and the drainage groove extends in the direction away from the first side wall and penetrates through the first drainage hole. According to the sliding window, the drainage grooves are formed, so that the height difference is formed on the bottom wall, the drainage speed is increased, the drainage effect is improved, and the water leakage phenomenon of the sliding window is avoided.

The invention discloses a sand adding method for a multi-layer sandstone bottom water gas reservoir and an application thereof. The method combines processes such as fracture control high-pressure fracturing, bottom plugging and proppant combination, and adopts a novel temperature-sensitive fracturing fluid, which can not only fully open each reservoir but also control the fracture to extend downward, and can optimize the fracture profile, so that the fracture height profile of the fracture near the wellbore position and the fracture front end is almost the same, thereby expanding the fracture leakage area; on the basis of adopting different density proppant combinations and different viscosity fracturing fluid combinations to achieve effective plugging of the fracture bottom, the effective laying of the proppant is improved, the fracture conductivity is improved, and the purpose of controlling water and increasing production of the multi-layer sandstone bottom water gas reservoir is achieved.

The invention relates to the technical field of rainstorm drainage, in particular to a smart city rainstorm emergency drainage device. Comprising a drainage mounting seat; the drainage mounting base is fixedly connected with a first connecting piece, and the first screen is connected to the first connecting piece of the drainage mounting base in a sliding mode; the rotating sleeve is rotationally connected to the first connecting piece of the drainage mounting seat, and a spiral groove is formed in the rotating sleeve; the clamping block is fixedly connected to the first screen, and the clamping block is in sliding connection with the spiral groove; the circulation shell is rotationally connected into the drainage mounting seat; and the driving assembly is arranged in the drainage mounting seat. The spiral groove and the clamping block are matched to drive the first screen to move upwards, the drainage area of the device is increased, the drainage flow volume is improved, and the situation that water in a bridge opening is continuously accumulated, so that vehicles cannot run in the bridge opening, and traffic interruption occurs is avoided.

The present application relates to the field of downhole oil tools, and in particular to a drum storage pipe type reservoir communication device and a method for using the same, which includes a drum type coil assembly, including a core shaft, a coil tube connected to the core shaft, a nozzle wound on the coil tube, a stopper and a plug, the stopper is arranged on the core shaft and limits the rotation of the coil tube, the plug is arranged on the core shaft and limits the stopper from falling off the core shaft, the coil tube is provided with a guide hole, one end of the nozzle is located in the guide hole and a nozzle is formed at the end, and the diameter of the nozzle is smaller than the diameter of the guide hole; a sliding sleeve includes an outer tube, an inner tube and a shear pin, the shear pin is arranged on the outer tube and is used to limit the sliding of the inner tube, the core shaft is connected to the inner tube, a transition hole connected to the transition hole is arranged on the inner tube, a spray hole is arranged on the outer tube, and the inner tube can make the transition hole and the spray hole connected or disconnected by sliding. The present application has the effect of maximizing the nozzle length that can be installed with the same axial installation size.