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74results about How to "Adjust resistance" patented technology

Intelligent speed-control blade type pipe cleaner

PendingCN109226128AEnsure pigging efficiencyOvercome the stuck problemHollow article cleaningPiggingMotor control
The invention relates to an intelligent speed-control blade type pipe cleaner which is mainly composed of a plurality of steel blades, a plurality of mileage wheels, a mandrel, a motor, a single-chipmicrocomputer, a drainage device and other components. A plurality of steel blades are designed, a plurality of blade layers are arranged around the mandrel, the blade layers are closely attached to apipe wall for scraping and cleaning a pipe under the preset pressure of springs, and blockage can be avoided through the retraction capacity of the blades under resistance; meanwhile, the mileage wheels are arranged around the mandrel and record displacement, the displacement is converted into speed signals through a speed sensor, the speed signals are transmitted to the single-chip microcomputer, the single-chip microcomputer controls the motor to act, the motor controls a drainage baffle to rotate, and therefore the front-back pressure difference of the pipe cleaner is adjusted, and the speed is reduced. Compared with an existing conventional pipe cleaner, the intelligent speed-control blade type pipe cleaner is lower in price, it is ensured that the pipe cleaning efficiency is higher,and the pipe explosion caused when the pipe cleaner gets stuck and the pipe cleaning speed is too high is effectively avoided.
Owner:SOUTHWEST PETROLEUM UNIV

Liquid resistor loading device

The invention relates to a high-voltage high-power liquid resistor loading device which comprises a liquid resistor box, a moving electrode plate, a fixed electrode plate, a position sensor, a pulling motor, a transmission screw rod, a sliding block and a controller. The device has the main characteristic that the lower ends of the moving electrode plate and the fixed electrode plate are both inserted into a resistance liquid in the liquid resistor box, the fixed electrode plate is fixedly installed, and the moving electrode plate can laterally move. The device adopts a simple transmission mechanism, the distance between the moving electrode plate and the fixed electrode plate is changed under the control of the position sensor and the controller, and the resistance of the liquid resistorcan be conveniently regulated through the change in the distance between the moving electrode plate and the fixed electrode plate; and the requirement on a high-voltage high-power generator or other high-voltage high-power power supply type devices for electrical performance tests can be satisfied. The continuity, the uniformity and the reliability of the high-voltage high-power generator or other high-voltage high-power power supply type devices for electrical performance tests are increased, meanwhile, the investment cost of the resistor loading device is reduced.
Owner:DAYU ELECTRIC

Adjustable louver window type desulfurization absorption tower

PendingCN106731633ASolve the problem of difficult adjustment under different load conditionsAdjust resistanceGas treatmentDispersed particle separationGypsumFlue gas
The invention provides an adjustable louver window type desulfurization absorption tower. The adjustable louver window type desulfurization absorption tower comprises an absorption tower body, an absorption tower inlet arranged at the lower middle part of the absorption tower body, an absorption tower outlet arranged at the top of the absorption tower body, spraying layers and a demister which are arranged in the absorption tower body and at the upper part of the absorption tower inlet in sequence, and a slurry circulating pump which is arranged at the bottom of the absorption tower body and is used for pumping slurry of a bottom slurry tank to the spraying layers for atomizing and spraying; the adjustable louver window type desulfurization absorption tower further comprises an adjustable louver window type flow equalization device which is arranged between an upper edge of the absorption tower inlet and the spraying layer of the bottommost layer or is arranged between the different spraying layers and is used for adjusting a louver window blade angle online; the flow speed of flue gas in the absorption tower and the liquid hold-up amount on a louver window blade can be adjusted through adjusting the louver window blade angle, so that the system resistance and efficiency are adjusted; the problem of an existing limestone-gypsum wet-process absorption tower that different load working conditions are difficult to adjust is solved; the adjustable louver window type desulfurization absorption tower has the advantages of high desulfurization efficiency, low energy consumption, flexibility in operation and adjustment and the like.
Owner:XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD

Concentrating, dewatering and strong-pressure integrated sludge dewatering machine

The invention discloses a concentrating, dewatering and strong-pressing integrated sludge dewatering machine which comprises a rack, and further comprises a gravity filtering mechanism, a vertical rolling dewatering mechanism and a counter-pressing type dewatering mechanism which are sequentially arranged on the rack, the gravity filtering mechanism comprises a filtering device, a bottom frame assembly, a side leakage preventing assembly, a mud overturning assembly and a thickness adjusting assembly; the vertical rolling dehydration mechanism comprises an S-shaped dehydration section, the S-shaped dehydration section is located at the downstream of a slurry outlet, the S-shaped dehydration section comprises a plurality of dehydration rollers which are rotatably connected to the rack and are integrally arranged from bottom to top, and the outer diameters of the dehydration rollers are gradually decreased to the minimum outer diameter from the upstream to the downstream; the counter-pressing type dewatering mechanism comprises a strong pressing section, a strong pressing roller set is arranged on the strong pressing section, and the strong pressing roller set comprises a fixed rollerset and a movable roller set. The gravity filtering mechanism, the vertical rolling dewatering mechanism and the counter-pressure type dewatering mechanism are arranged to form the sludge dewateringmachine which is large in treatment flux, high in water filtering capacity and high in treatment precision.
Owner:FOSHAN UNIVERSITY

Separated heat pipe system capable of adjusting flow resistance and using method

ActiveCN112611241AMaintain normal and smooth operationEasy to disassembleIndirect heat exchangersEvaporatorEngineering
The invention discloses a separated heat pipe system capable of adjusting flow resistance and a using method thereof, solves the problem of failure of the heat pipe system due to increase of closing on-way resistance caused by increase of fluid flow rate in the heat pipe system, and has the advantages that on-way resistance adjustment can be realized, and an ascending pipe or a descending pipe is convenient to replace. According to the specific scheme, the separated heat pipe system capable of adjusting the flow resistance comprises an evaporator, a condenser, an ascending pipe component and a descending pipe component, the condenser is higher than the evaporator, one side of the evaporator and one side of the condenser are connected through the ascending pipe component, and the other side of the evaporator and the other side of the condenser are connected through the descending pipe component. The ascending pipe component and the descending pipe component respectively comprise a plurality of pipelines which are arranged in parallel and can be communicated, the pipelines of the ascending pipe component and the descending pipe component are connected through valves, the flow resistances of the pipelines in the ascending pipe component are different, and the flow resistances of the pipelines in the descending pipe component are different.
Owner:SHANDONG UNIV

Modular rapeseed turning and stirring apparatus

The invention relates to a modular rapeseed turning and stirring apparatus which comprises a main shaft, wherein both upper and lower ends of the main shaft are flanged connection ends; a sub-module mounting frame is mounted at the lower end of the main shaft in a flanged connection manner and comprises a top plate, a bottom plate and a rear side plate; a plurality of rectangular grooves are formed in each of the upper end surface of the top plate and the lower end surface of the bottom plate; inner stepped slide ways are arranged on the left and right side surfaces of each rectangular groove; bolt holes are formed in each inner stepped slide way; and a stirring module is mounted on the rectangular groove in a bolted connection manner. According to the modular rapeseed turning and stirring apparatus, a modular assembly mode is adopted; a complete stirring plate control apparatus used for stirring rapeseeds is mounted in a sub-frame and used for controlling the turning direction and fixation of a stirring plate; the sub-frame and the sub-module mounting frame are connected in a bolted connection manner, so that the sub-frame is flexible and detachable; and the sub-frame and the sub-module mounting frame with a three-side encirclement structure form a rectangular structure, so that the mechanical strength of the sub-module mounting frame is further enhanced.
Owner:ANHUI GUANGMING GRAIN & OIL IND

Glass door floor spring capable of being opened and closed by 360 degrees

The invention belongs to the technical field of glass door floor springs, and particularly relates to a glass door floor spring capable of being opened and closed by 360 degrees. The glass door floorspring comprises a door frame and a glass door. In the opening process of the glass door, under the action of a gear and a rack, the glass door can slide relative to the door frame to move inwards oroutwards and finally is attached to the side face of the door frame, the occupied space of the glass door after being opened is reduced, especially for a door close to a street, after the door is opened, the potential safety hazards of the glass door to passing pedestrians and vehicles are reduced, and meanwhile the glass door is protected. According to the glass door floor spring, the minimum section of internal circulation of a flow guide groove is adjusted by adjusting the length of a damping screw rod in the flow guide groove, then the resistance in the sliding process of a piston is adjusted, the rotating resistance of a cam can be adjusted by adjusting the damping screw rod, then the resistance of the glass door in the opening and closing process is adjusted, and the longer the length of the damping screw rod in the flow guide groove is, the larger the damping force is.
Owner:杭州银湖机械弹簧有限公司

Stable anti-skid mouse

The invention belongs to the related field of electronics, and particularly relates to a stable anti-skid mouse which comprises a shell, a rotating shaft is fixedly connected to the inner side wall of the shell, a thread is arranged outside the rotating shaft, the rotating shaft is rotationally connected with a roller, a cavity is formed in the roller, electrorheological fluid is arranged in the cavity, a conducting strip is arranged in the electrorheological fluid. A sliding block is slidably connected to the inner side wall of the roller, a plurality of through holes is formed in the sliding block, the sliding block is in threaded connection with the rotating shaft, a sliding sleeve is fixedly connected to the lower wall of the inner side of the shell, a piezoelectric plate is fixedly connected to the lower wall of the inner side of the sliding sleeve, and the conductive plate is electrically connected with the piezoelectric plate. The upper surface of the piezoelectric sheet is fixedly connected with a spring, and the upper end of the spring is fixedly connected with a vibrating sheet. The vibrating sheet and the piezoelectric sheet are arranged, resistance borne by rotation of the roller is automatically adjusted, operation is prevented from being affected by the resistance, the magnetic block is arranged, resistance borne by movement of the mouse in the state that the roller is pressed is reduced, and hand ache is avoided.
Owner:梅州市嘉腾辉电子科技有限公司

Low-voltage transformer area topology rapid identification system

The invention relates to a low-voltage transformer area topology rapid identification system and belongs to the technical field of intelligent power grids and intelligent power utilization. The systemcomprises a PDA hand-held terminal, a main station server and a low-voltage transformer area topology rapid identification instrument, wherein the low-voltage transformer area topology rapid identification instrument comprises an identification instrument host and an identification instrument slave, the identification instrument host, the identification instrument slave and the PDA hand-held terminal are connected with the master station server through the 4G communication module, the identification instrument slave machine comprises a slave machine trigger circuit, the slave trigger circuitcomprises an MCU pulse control circuit, a triode switch circuit and a solid-state relay JD1, a trigger signal output end of the MCU pulse control circuit is connected with the weak current end of thesolid-state relay JD1 through the triode switch circuit, and a strong current end of the solid-state relay JD1 is connected with the AC 220V phase voltage of a to-be-tested transformer area through the load resistor R1. The system can solve a problem that the topological relation of the low-voltage transformer area is not clear, and meets the requirements of electric power companies and power supply departments for quickly identifying the topological structure of the low-voltage transformer area.
Owner:JIANGSU INTELEVER ENERGY TECH CO LTD

A damping and anti-vibration supporting device for the turning processing of crane cylindrical parts

A damping and anti-vibration supporting device for turning cylindrical parts of a crane, including a base, a slide rail, a sliding seat, a driving mechanism, a support wheel, and a rotation damping mechanism. The bottom surface of the base is in sliding connection with the guide rail of a lathe. There is a slide rail on the surface, the axis of the slide rail is perpendicular to the axis of the lathe guide rail, the slide rail slides with two sliding seats, and the base is equipped with a driving mechanism that can drive the two sliding seats to move toward or away from each other; the top of the two sliding seats A support wheel is provided respectively, and a rotation damping mechanism is respectively provided on the two sliding seats; the rotating damping mechanism includes a housing, a squeeze disc and a gear, and the housing is a box structure with one side open, and the opening surface of the housing is sealed corresponding to the side of the sliding seat. connected, and the side of the open end of the shell is provided with an oil filling port, and the shell is equipped with a squeeze plate, which can seal and slide in the direction of the sliding seat, the gear is located in the shell, and the gear is connected to the axle of the supporting wheel correspondingly, and The device can improve the processing quality of thin-walled cylindrical parts.
Owner:HENAN WEIHUA HEAVY MACHINE

Turnable and adjustable vegetable-seed stirring module

The invention relates to a turnable and adjustable vegetable-seed stirring module. The vegetable-seed stirring module comprises a frame body, wherein the frame body comprises a bottom plate, a top plate and a rear side plate, wherein stepped slide ways are respectively arranged on the left side and the right side of the lower ends surface of the top plate, and the left side and the right side of the upper end surface of the bottom plate; bolt holes are formed in each stepped slide way; a vertical plectrum plate is arranged under the frame body; a connecting column is arranged at the upper end of the plectrum plate; the upper end of the connecting column penetrates through the bottom plate to stretch into the frame body, and a six-rowed column which is coaxial with the connecting column is fixedly connected to the connecting column; a limit sleeve fixed on the bottom plate sleeves the lower part of the six-rowed column; a six-rowed hole matched with the six-rowed column is formed in the middle of the limit sleeve; a threaded hole is formed in the upper end of the six-rowed column; a threaded rod is arranged in the threaded hole in a matched manner. The vegetable-seed stirring module disclosed by the invention adopts a modularized assembly manner, and the frame body with the stepped slide ways is mounted on a rotary mechanism, so that the assembling efficiency is improved; during maintenance, only the frame body needs to replace, and even only parts of components in the frame body need to maintain, so that the maintenance cost is greatly reduced; therefore, the improvement of enterprise revenue is facilitated.
Owner:ANHUI GUANGMING GRAIN & OIL IND

An explosion-proof forklift hydraulic pipeline tee joint

The invention relates to the technical field of hydraulic pipeline joints and particularly relates to an explosion-proof type three-way joint for a hydraulic pipeline of a forklift. The three-way joint comprises a valve body and a three-way valve, wherein the valve body is sequentially provided with an oil inlet valve, a middle oil cavity and an oil discharging cavity from top to bottom; the oil inlet cavity is formed in the upper end of the middle oil cavity, the oil discharging cavity is formed in the bottom end of the middle oil cavity, and the oil inlet cavity is communicated with the oildischarging cavity through the middle oil cavity. When the three-way joint is matched with a telescopic oil cylinder for use, the overflowing effect is relatively good, and oil is smoothly returned, so that the energy loss is reduced, and the working efficiency is improved; by arranging a spring group, the slippage resistance of a sliding core can be adjusted through adjusting the position of a baffling cover by an operator, and then the slippage resistance of a valve seat is adjusted; and by combining a manual oil supply manner through an oil control interface by the operator with an automatic resetting manner of a device through springs, the oil cut effect is relatively good, and the reliability of pressure control is guaranteed.
Owner:NINGBO GUANTONG MACHINERY
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