32results about How to "Guaranteed flow area" patented technology

The invention discloses a rotor end surface temperature measuring device for traction type molecular pumps. The rotor end surface temperature measuring device comprises an outer shell, a rotor, an end face flange, the first-stage molecular pump, the third-stage molecular pump and the second-stage molecular pump, wherein the third-stage molecular pump is in interference fit connection with the first-stage molecular pump; a screw is screwed into an end face flange threaded hole of the end face flange through a third-stage molecular pump connecting hole in the circumference of the third-stage molecular pump; the protruding end of the screw is located in a screw connecting hole in the circumference of the second-stage molecular pump; a transition part is fixed to the interior of an assembly threaded hole of an assembly stepped hole through external threads, and the free end of the transition part is located in a transition part insertion hole; an infrared probe in a temperature measurement assembly is screwed into an assembly screw hole of the transition part and is fixed to the third-stage molecular pump through the transition part. The temperature measurement assembly can be conveniently disassembled or assembled under the condition of guaranteeing the dynamic clearance of the second-stage molecular pump and the dynamic clearance of the third-stage molecular pump, and therefore the open area and pumping efficiency of a pumping tank are guaranteed.

The invention discloses a battery cell tab connecting structure which comprises tabs and busbars. Through holes matching the tabs are formed in the busbars; the through holes correspond to the tabs; one end of each tab is connected with a battery cell, and the other end of the tab is inserted into the corresponding through hole in a busbar; the tabs and the busbars are connected through laser welding at the through holes. The invention further provides a soft package battery which comprises the battery cell tab connection structure, electric equipment, an electric vehicle and a power station. According to the battery cell tab connecting structure, the soft package battery, the electric equipment, the electric vehicle and the power station, which are provided by the invention, the busbarover-current area is not occupied; the busbars and the tabs are firmly welded; pseudo soldering can be avoided; and the welding quality is convenient to detect.

The invention discloses a mixed transportation pump which comprises a cylinder. A left end cover is arranged at one end of the cylinder, the other side of the left end cover is communicated with an outlet pipeline, and an oil tank and a bearing pedestal are arranged at the other end of the cylinder. A rotor and a crankshaft are arranged in an inner cavity of the cylinder. The crankshaft is arranged in the horizontal direction, the rotor does plane swing along with the crankshaft, and the outer wall of the rotor and the inner wall of the cylinder are kept tangent all the time. Rolling bearings are arranged between the rotor and the crankshaft, and the rotor is in close fit with the crankshaft through the rolling bearings. According to the mixed transportation pump, all components are well lubricated, the service life of the whole pump is prolonged, and guarantees are provided for application of the multiphase mixed transportation technology to oilfield exploitation and oil-gas mixed transportation.

The invention relates to the technical field of science and education tools, and discloses an artificial wetland model. The artificial wetland model comprises a water storage device, a water inlet pipe, a color developing agent and at least one simulated wetland unit, wherein the water storage device used for containing sewage; the color developing agent is used for being added into the sewage fora color developing reaction with pollutants in the sewage; the simulated wetland unit comprises a container, a matrix and wetland plants; the container is in the shape of a box with an opening in thetop, and a water outlet is formed in the side of the container; the water inlet pipe is connected with a water pump, two ends of the water inlet pipe are respectively introduced into the water storage device and the container; the matrix is laid in the container; the wetland plants are planted on the matrix; and the water storage device communicates with the water outlet to collect sewage flowingthrough the container. The sewage can circularly flow in the model, so the model disclosed by the invention can simulate the operation of a real constructed wetland, the purification function of thewetland is intuitively expressed through the color difference of the water storage device, the interestingness and participation of science popularization activities are increased, and the operationalability of a taught person is improved. The invention further provides an operation method of the constructed wetland model.

The invention provides a same-floor drainage system of a toilet without slab lowering. The same-floor drainage system of the toilet without slab lowering is composed of a drainage vertical pipe, a sewage transverse branch pipe, a waste water transverse branch pipe, an integrated water seal, a floor drain, a ground floor slab and a floor decoration layer; the drainage vertical pipe penetrates through the ground floor slab; a water seal channel of the integrated water seal is arranged in a ground floor slab, the transversely-closed bottom outer wall does not penetrate through the ground floor slab; at least two openings, of the integrated water seal, above the ground floor slab communicate with and are converged to be connected with the water seal channel; and a waste water transverse branchpipe connector is connected with the floor drain and a wash basin pipeline, and the floor drain and the wash basin pipeline are not provided with traps or water seal devices. According to the same-floor drainage system of the toilet without slab lowering, the problems that a floor slab needs to be lowered during same-floor drainage of a traditional building, the traps which are arranged below alldrainage points are prone to drying up to cause odor return can be solved, and the effects that same-floor drainage does not need slab lowering, a toilet does not have peculiar smells, and the pipeline is easy to overhaul are achieved.

The invention relates to a pipeline type steam filter screen with a double-funnel structure, which can guarantee the whole flow area and has the characteristics of being convenient to assemble and disassemble, simple in structure and low in cost. According to the technical scheme, the pipeline type steam filter screen is characterized by comprising a funnel-shaped outer net and a funnel-shaped inner net, wherein the diameter of the outer net is gradually reduced from the bottom end to the top; the bottom end of the outer net is provided with a flange ring, and a mouth part on the top of the outer net is connected with the top of the inner net; the inner net extends into the outer net downward; and the diameter of the inner net is gradually reduced from the top to the bottom end.

The invention relates to a duralumin pole piece and a battery module. The duralumin pole piece includes total output pole pieces, double-row duralumin pole pieces and a single-row duralumin pole piece. Each total output pole piece includes a rectangular duralumin pole piece and an embossed teeth equipped hexagonal head screw that are combined together by a pressure riveting process, and is used for electric connection with a post terminal serving as a total output pole of the battery module. Each double-row duralumin pole piece is an H-shaped structure composed of one connecting part and two welding parts, and is used for electrically connecting a plurality of post terminals of two adjacent columns of batteries in the battery module. The single-row duralumin pole piece is used for used forelectric connection of other post terminals except the total output pole in the outermost two columns of battery post terminals in the battery module. The rectangular duralumin pole pieces, the single-row duralumin pole piece and the double-row duralumin pole pieces are all coated with wiredrawing surfaces. The battery module consists of a battery pack, packing straps and a duralumin pole piece,and the duralumin pole piece and the battery pack adopt laser welding. The duralumin pole piece and the battery module provided by the invention have the advantages of high production efficiency, lowproduction cost, simple and convenient welding, and high welding reliability.

The invention discloses a mixed transportation pump which comprises a cylinder. A left end cover is arranged at one end of the cylinder, the other side of the left end cover is communicated with an outlet pipeline, and an oil tank and a bearing pedestal are arranged at the other end of the cylinder. A rotor and a crankshaft are arranged in an inner cavity of the cylinder. The crankshaft is arranged in the horizontal direction, the rotor does plane swing along with the crankshaft, and the outer wall of the rotor and the inner wall of the cylinder are kept tangent all the time. Rolling bearings are arranged between the rotor and the crankshaft, and the rotor is in close fit with the crankshaft through the rolling bearings. According to the mixed transportation pump, all components are well lubricated, the service life of the whole pump is prolonged, and guarantees are provided for application of the multiphase mixed transportation technology to oilfield exploitation and oil-gas mixed transportation.

The invention discloses an array type connection structure and electronic equipment, and belongs to electronic devices. The array type connecting structure comprises a support and a plurality of connecting assemblies. The support is used for fixing a plurality of connecting assemblies which are sequentially arranged at intervals in the length direction of the support, and no signal wire is arranged in the support. Each connecting assembly penetrates through the bracket; the first side of each connecting assembly is provided with a connector interface, the connector interface comprises a plurality of first signal terminals, and the connector interface is used for being connected with a first electronic device located on the first side of the support; the second side of each connecting assembly is directly connected with a plurality of cables, the plurality of cables are in one-to-one correspondence with the plurality of second signal terminals of the connecting assemblies, and the cables are used for being connected with second electronic devices located on the second side of the support; the support is provided with a heat dissipation through hole, and at least part of the heat dissipation through hole is located between the two adjacent connecting assemblies. The array type connection structure provided by the embodiment of the invention can have a good heat dissipation effect.

The invention provides a real-time clearing device for carbon black in tire oil refining. The real-time clearing device effectively solves the problems that in the prior art, the inner wall of a pipeline for conveying high-temperature oil gas cannot be cleaned in real time, the high-temperature oil gas is easily attached to the inner wall of the pipeline, and through-flow of the pipeline is seriously influenced. According to the technical scheme for solving the problems, the real-time clearing device comprises a hollow cylinder, a rotating shaft is arranged on the side wall of the hollow cylinder, a plurality of flat plates are arranged in the hollow cylinder, a rotating disc is arranged on the outer side of the hollow cylinder, an annular cylinder is arranged on the outer side of the hollow cylinder, a plurality of worm and gear mechanisms are arranged in the annular cylinder, worm gears are hinged to the inner side of the annular cylinder, worms are arranged along the hollow cylinder, an arc-shaped groove is formed in the rotating disc, deflector rods are arranged on the end surfaces of the worm gears, friction discs are arranged on the outer sides of the two ends of the hollow cylinder, inner gear rings are arranged on one sides of the friction discs, pinions are fixed to the two ends of the worms, an outer cylinder is arranged on the outer side of the annular cylinder, two annular plates are arranged in the annular interval, an outer gear ring is arranged on the outer side of the annular cylinder, a plurality of transmission gears are arranged between the two annular plates, a plurality of sliding rods penetrate through a conical cylinder, and friction wheels are fixed to the ends, close to the hollow cylinder, of the sliding rods.

The invention discloses a replenishing valve for a hydraulic system of a press. The replenishing valve comprises a valve spool, a valve seat, a valve spool control body, a connecting rod, a return spring, a locking nut, a spring pressing cover and a guide sleeve. The replenishing valve is characterized in that the return spring is fixedly arranged in the valve seat through the spring pressing cover, the valve spool extends into the return spring through the guide sleeve, and the valve spool control body is connected with the valve seat through the connecting rod and the locking nut. The replenishing valve is simple in structure, convenient to assemble and disassemble and large in through-flow area.

The invention discloses a through hole geopolymer sand filter pipe. The through hole geopolymer sand filter pipe comprises a base pipe and a filter layer; the filer layer is a through hole geopolymerfilter layer; a slotted hole is formed in the base pipe; the through hole geopolymer filter layer covers the slotted hole completely when arranged on the outer wall of the base pipe in a sleeving mode; at least one consolidating sleeve is arranged on the outer wall of the through hole geopolymer filter layer in a sleeving mode and connected to the outer wall of the through hole geopolymer filter layer through a heated adhesive; and the upper end and the lower end of the through hole geopolymer filter layer are connected with an upper protection cover and a lower protection cover through adhesives correspondingly, and the upper protection cover and the lower protection cover are both welded to the base pipe. The slotted hole is reasonable in design; the filter layer is made of a geopolymermaterial, and the through hole geopolymer sand filter pipe has obvious advantages the filter layer is mounted and connected in the mode that the unconventional adhesives are heated for consolidating,and the strength of the consolidating part is high; and the multiple consolidating sleeves are arranged on the outer wall of the filter layer, so that the strength of the consolidating part is improved again while the strength of the filter layer is improved.

The invention discloses a recirculation intake pipe fitting with a guiding function, which includes a main pipe, and a first ring road and a second ring road are sheathed on the outside of the main pipe, and the first ring road and the second ring road are connected with the main pipe. A first ring channel cavity and a second ring channel cavity are formed between the pipes, and the first ring channel and the second ring channel are connected by a ring plate, and the ring plate is uniformly provided with circulation holes along the circumference. The side wall of the pipeline is also provided with an annular groove communicating with the second ring channel cavity. The annular groove is arranged obliquely along the side wall of the main pipeline. An air inlet pipe is vertically arranged outside the first ring road. The air inlet pipe is connected to the first ring road cavities connected. The air inlet pipe adopts the decompression structure of the side-by-side two-stage ring cavity, which is compact in structure, reduces the airflow loss while decompressing, and prevents the recirculation gas from entering the main flow channel. The inclined design of the annular groove has a guiding effect on the airflow, and It is convenient for processing and avoids adverse effects on the working efficiency of the supercharger compressor impeller due to the pressure and inlet angle of the recirculating gas.

The invention relates to the technical field of switch blades, and provides a movable end switch blade and a switch blade type load switch. The movable end switch blade includes: a switch blade body, one end of which is provided with a mounting hole for connecting the switch blade body to a suitable On the matching seat; arc-resistant head, made of arc-resistant material, installed on the end of the switch knife body facing away from the installation hole, used to contact with the static end switch knife to realize the conduction of the circuit; arc-leading body, located at Near the critical position between the switch knife body and the arc-resistant head, it is installed on the side of the switch knife body or the arc-resistant head, or the arc-starting body is formed by a protrusion on the arc-resistant head facing the side of the static end switch knife; the arc-starting body When the switch is closed, it is first close to the static end switch knife, and when the switch is opened, it is last away from the static end switch knife. The moving end switch knife and the switch knife type load switch in the present invention can solve the problem of low switch safety and reliability caused by arc ablation switch knife in the prior art.

The invention discloses a method and device for manufacturing a refractory ceramic cyclone cylinder. The device is used for reasonably separating an existing integral cyclone cylinder and comprises two main components which are a cyclone and a cylinder. The components are mechanically manufactured, have stable size uniformity and can be directly combined. The cyclone is manufactured through mechanical pressing. The curvature of vanes and the inclination angle of the vanes can keep completely parallel to one another, so excellent flow guiding effects can be ensured. The vanes are directly connected with the cylinder walls on the two sides without large circular angle transition connection. Consequently, the flow area of air guide holes is guaranteed, cracks caused by internal stress in the firing process are avoided, and the yield rate is greatly improved. The cylinder is manufactured through mechanical spinning. The wall thickness of the cylinder is uniform, and the circular degree of the cross section of the cylinder is good in quality. The cyclones with various diameters can be flexibly produced by changing the molds, and the cyclones with the large diameter ranging from 500 millimeters to 800 millimeters can be produced.

The invention provides a real-time cleaning device for an oil-gas pipeline of a tire oil refining reaction kettle, and effectively solves the problems that in the prior art, the inner wall of a pipeline for conveying high-temperature oil gas cannot be cleaned in real time, attachment to the inner wall of the pipeline is easily caused, and the through-flow of the pipeline is seriously influenced. According to the technical scheme, the device comprises a hollow cylinder, a plurality of rotating shafts penetrate through the side wall of the hollow cylinder, a plurality of flat plates are arranged in the hollow cylinder, a first gear is arranged on the outer side of the hollow cylinder, the first gear is provided with a rack, a plurality of rectangular blocks are arranged on the outer side of the hollow cylinder, and a cross rod is arranged at the end of the rack; an annular cylinder is arranged on the outer side of the hollow cylinder and fixed to the hollow cylinder. The outer side of the annular cylinder is sleeved with an outer cylinder, two annular plates are arranged between the outer cylinder and the annular cylinder, an outer gear ring is fixed to the outer side of the annular cylinder, a plurality of transmission gears are arranged between the two annular plates, the transmission gears and the outer gear ring are in transmission through staggered shaft bevel gears, and wheels are fixed to the two ends of a center shaft of each transmission gear. Two ends of the hollow cylinder are connected with conical cylinders through bearings.

The invention discloses a floor socket with an electrical modular replacement function. The floor socket comprises a fixing device, a detection device, a transmission assembly, a power device and a reversing device, wherein the fixing device is connected with the detection device, the transmission assembly is connected with the fixing device, the power device is connected with the fixing device, the transmission assembly is connected with the power device, the reversing device is connected with the fixing device, the fixing device comprises a cover plate, a shell and a mounting plate, the lower side of the cover plate is fixedly connected with the shell, a mounting groove is formed in the cover plate, an air chamber is arranged on the shell, an opening is formed in the upper side of the air chamber, the mounting groove is communicated with the air chamber, rotating shafts are arranged on the two sides of the mounting plate, rotating grooves are formed in the two sides of the mounting groove, the mounting plate is rotationally connected with the rotating grooves through the rotating shafts, the power device comprises a driving motor and a transmission gear pair, a transmission groove is formed in the shell, the driving motor is arranged in the transmission groove, and a shell of the driving motor is fixedly connected with the transmission groove.

The invention discloses a disc spraying device. The device comprises a supporting part arranged in the inner wall of a tower body, a distribution disc is arranged on the supporting part, through the supporting part, the distribution disc is placed on the center of the tower body, a vertical liquid inlet pipe is arranged on the distribution disc, and is connected with a transverse liquid inlet pipe, multiple evenly-distributed overflow pipes are arranged at the position, on the periphery of the vertical liquid inlet pipe, of the distribution disc, the tops of the overflow pipes are lower than the height of the outer edges of the distribution disc, and the overflow pipes are spraying channels with liquid sprayed to padding. Liquid is evenly distributed, and is relatively concentrated to thecenter of a tower, liquid is prevented from flowing along the tower wall, that is the side flowing phenomenon, and the treatment capacity of the device is improved.

The invention provides a star lander storage box propellant management device and a manufacturing method thereof. The star lander storage box propellant management device comprises a supporting cover, a base, a damping management area, an internal net management layer and an external net management layer. The internal net management layer and the external net management layer are welded to the base. The internal net management layer is embedded in and sleeved with the external net management layer. Gas-liquid mixed propellant of the damping management area is drained to the external net management layer, becomes single-phase liquid propellant after being subjected to gas-liquid separation through the external net management layer, and enters an external net management area formed by the external net management layer. The single-phase liquid propellant flows to an internal net management area formed by the internal net management layer through the internal net management layer and is then discharged out of a storage box. Before the external net management layer loses efficacy, the internal net management layer is completely soaked in the propellant, and therefore the constant flowing area of the internal net management layer and low flow resistance generated when liquid passes through a net under large flow are ensured. The internal net management area is completely in the liquid-full state in the drainage process before the internal net management layer loses efficacy, and therefore it is prevented that gas is sucked into a liquid path outlet due to rotational flow when large-flow discharge is conducted, and it is ensured that the air-assistance-free propellant is reliably supplied to an engine.

The invention discloses a soft package lithium battery which comprises a battery box and a modular soft package battery pack. The modular soft package battery pack is welded in the battery box; the outer wall of the modular soft package battery pack and the inner wall, welded with the modular soft package battery pack, of the battery box are made of weldable materials. The soft package lithium battery is small in size and convenient to install, and the soft package battery pack is firm in connection and good in heat dissipation after installation is completed.

The invention relates to a centering anti-eccentric anti-waxing sucker-rod coupling and belongs to the field of petroleum and gas development. According to a sliding and rolling combined friction way, a magnet anti-waxing body (8) is arranged below friction balls (10); a sucker-rod standard body (4) is designed according to a fluid mechanics principle and is combined with the sucker-rod coupling; with a water facing line (5), a water facing surface (6) and an overflow surface (7), the overflow area of a well liquid flow passage (3) is guaranteed and the liquid flow resistance is reduced, so that the sucker-rod standard body (4) becomes a standard part of the sucker-rod coupling; the resistance to well liquid by the sucker-rod standard body (4) is minimized; the rolling of the friction balls (10) plays a main role while sling friction surfaces (9) play a secondary role; the magnet is free of influence of wax, and the sucker-rod standard body (4) is designed according to the shape of a submarine, so that the resistance to the well liquid is reduced.

The invention relates to a pipeline type steam filter screen with a double-funnel structure, which can guarantee the whole flow area and has the characteristics of being convenient to assemble and disassemble, simple in structure and low in cost. According to the technical scheme, the pipeline type steam filter screen is characterized by comprising a funnel-shaped outer net and a funnel-shaped inner net, wherein the diameter of the outer net is gradually reduced from the bottom end to the top; the bottom end of the outer net is provided with a flange ring, and a mouth part on the top of the outer net is connected with the top of the inner net; the inner net extends into the outer net downward; and the diameter of the inner net is gradually reduced from the top to the bottom end.

The invention discloses a modular soft package battery pack, which comprises a plurality of battery cells and a module shell, wherein all the battery cells are electrically connected through corresponding tabs, all the battery cells are fixed in the module shell, and the module shell is made of a weldable material. The invention further discloses electric equipment comprising the modular soft package battery pack. The modular soft package battery pack and the electric equipment provided by the invention have the advantages that the size is small, the splicing of a plurality of soft package battery packs and the fixing with a battery box are facilitated, the connection is firm after the plurality of soft package battery packs are spliced, and the heat dissipation performance is good.

The invention discloses a ground socket with electrical modular replacement function, comprising a fixing device, a detection device, a transmission assembly, a power device and a reversing device, the connection between the fixing device and the detection device, the connection between the transmission assembly and the fixing device, the power device and the The connection of the fixing device, the connection of the transmission component and the power device, the connection of the reversing device and the fixing device, the fixing device includes a cover plate, a shell and a mounting plate, the lower side of the cover plate is tightly connected with the shell, and the cover plate is provided with a mounting groove, There is an air chamber on the shell, the opening on the upper side of the air chamber is set, the installation groove is connected with the air chamber, the rotating shaft is arranged on both sides of the installation plate, and the rotation groove is arranged on both sides of the installation groove, the installation plate is connected by rotation through the rotation shaft and the rotation groove, and the power device It includes a driving motor and a transmission gear pair, a transmission groove is arranged on the casing, the driving motor is placed in the transmission groove, and the casing of the driving motor is fastened to the transmission groove.

The invention relates to an intelligent bleeding stopping device used during bleeding in cesarean section, and belongs to the technical field of surgical instruments. The intelligent bleeding stoppingdevice used during bleeding in cesarean section comprises a refrigeration and pressurization system, a control device and a pressing bag, wherein the pressing bag is used for coating the uterus; andthrough the refrigeration and pressurization system, cooling and pressing can be performed on the uterus by the pressing bag, so that powerful contraction of a muscular layer is promoted, and the purpose of stopping bleeding can be achieved. The intelligent bleeding stopping device used during bleeding in cesarean section disclosed by the invention is applied to the situation that postpartum hemorrhage caused by uterine inertia is generated on a clinical lying-in woman, an unclosed sinusoid can be pressed, powerful contraction of the uterus can be promoted, and the bleeding stopping efficiencyis improved; the pressure and the temperature of the pressing bag can be controlled in a visualized manner through the refrigeration and pressurization system, so that high-efficient, quick, noninvasive, low-temperature and intelligent cooling and pressing of the uterus from outside can be realized, the purpose of quickly stopping bleeding in the cesarean section is achieved, the problems of suture slipping, uterus ischemia necrosis, large wounds and the like generated in a conventional treatment means are effectively avoided, the postpartum uterectomy rate and the postpartum hemorrhage recurrence rate are reduced, and the satisfactoriness of patients is improved.

The invention discloses a soft package battery module. The module comprises multiple battery cells, a module shell and a heat-conducting filler, wherein all the battery cells are electrically connected through corresponding tabs; all the battery cells are arranged in the module shell; the heat-conducting filler is arranged in the module shell; gaps between the battery cells and between the batterycells and the module shell are filled with the heat-conducting filler; all the battery cells are fixed by the heat-conducting filler; and the module shell is made of a heat-conducting material. The invention further discloses electric equipment comprising the soft package battery module. According to the soft package battery module and the electric equipment disclosed in the invention, the heat dissipation performance is good, abrasion caused by friction between the battery cells is avoided, and the soft package battery module is small in size and convenient to install and arrange.