26results about How to "Control flow rate" patented technology

The utility model relates to the technical field of mark pens, in particular to a direct flow liquid type mark pen which comprises a pen holder and a water leading core, a pen point sleeve is arranged at the front end of the pen holder, a water storage device is arranged in the middle of the pen holder, an ink bin is arranged at the rear end of the pen holder, one end of the water storage device is connected with the pen point sleeve, and the other end of the water storage device is communicated with the ink bin. A through hole in clearance fit with the ink guide core is formed in the ink storage device, one end of the ink guide core is connected with the pen point sleeve, and the other end of the ink guide core is connected with the ink storage device in a penetrating mode through the through hole. A first matching groove used for being in interference fit with the upper end of the ink guiding core and a second matching groove used for being in clearance fit with the lower end of the ink guiding core are formed in the ink storage device, the first matching groove is located above the second matching groove, and the upper end is arranged to be in interference fit, so that the ink flow is stable, and ink reverse osmosis is prevented; the lower end clearance fit guarantees smooth flowing of ink, and balance of stable ink supply and ink interruption prevention is achieved.

The utility model discloses an air conditioner pipeline buffer assembly combined structure, and relates to the technical field of air conditioner pipelines. The spiral pipe comprises a pipe body and a spiral pipe fitting arranged on one side of the pipe body, and further comprises a support plate arranged at the upper end of the spiral pipe fitting, and a connecting mechanism is arranged on the inner side of the support plate; the connecting clamping ring is arranged at one end of the pipe body; the connecting guide pipe is connected to the end, away from the spiral pipe fitting, of the pipe body. The spiral pipe fitting is designed to be of a spiral structure, meanwhile, the temperature and the flow speed of compressed air flowing at a high speed from an air compressor can be effectively controlled, Z-shaped supports are adopted in the support plate and the connecting mechanism, a multi-face bolt connecting structure is adopted, the structure is more stable, the high tension and compression resistance is achieved, and then the spiral pipe fitting is not prone to falling off. Rubber pads can also be arranged in the arranged connecting clamping rings and can be combined for bearing, on one hand, normal movement of the smooth contact face of the pipe wall is ensured, and on the other hand, a good insulation effect is provided on the premise that shock absorption is ensured.

The invention provides a centrifugal collecting device. The centrifugal collecting device comprises a driving part and a driving part, the rotor assembly is connected with the driving piece; the liquid storage part is arranged on the rotor assembly, and the liquid storage part is provided with a liquid storage cavity; the flow guide assembly comprises a flexible flow guide pipe, and one end of the flexible flow guide pipe is connected with the liquid storage part and communicates with the liquid storage cavity; the flow adjusting part is connected with the rotor assembly, a slit is formed in the flow adjusting part, and under the condition that the flexible flow guide pipe is embedded into the slit, the flexible flow guide pipe deforms; the collection assembly comprises a treatment container, a filter part and a collection container, the filter part is arranged in the treatment container and divides the treatment container into a treatment chamber and a confluence chamber, the treatment chamber is communicated with the other end of the flexible flow guide pipe, and the confluence chamber is communicated with the collection container, that is, the effective stripping of the adsorbed secretions is realized; the dosage of a buffer solution is remarkably reduced, and the concentration of effective components in a collected solution is greatly improved, so that a detection result is closer to the content of real secretions in soil.

The utility model discloses a PH and density detection system for a wet desulphurization process. The PH and density detection system comprises a plurality of sampling branch pipes, a sampling header pipe and a detection tank, the number of the sampling branch pipes corresponds to the number of circulating pumps on the desulfurizing tower, one end of each sampling branch pipe is connected with an outlet of the circulating pump, the other end of each sampling branch pipe is connected with a sampling header pipe, the sampling header pipe is connected with a slurry inlet in the bottom of a detection tank, and the detection tank is provided with a PH meter interface, a differential pressure densimeter interface and an overflow port. The overflow port is connected with the desulfurization tower through a pipeline; according to the utility model, slurry in all directions in the tower can be comprehensively collected in real time in a manner of sampling at the outlet of the circulating pump, so that the accuracy of PH and density detection data is improved; through a positive pressure sampling mode, pipeline blockage caused by a static pressure self-flowing mode can be avoided; through the electric regulating valves at the head ends of the branch pipes, the flow of each branch sampling pipeline can be balanced, the flow speed of sampling slurry is controlled, the flow stability is ensured, and the abrasion of an instrument probe is reduced.

The application discloses a corrugated board ridge heating system with adjustable door width and a control method thereof, which comprises a main steam pipe, a steam gas pipe, a sealed condensate water recovery device, an electromagnetic superheater device, a steam exhaust pipe, an upper layer gas pipe, a lower layer gas pipe, a hot plate total gas pipe and an electric control box, the first water return pipe and the second water return pipe of the sealed condensate water recovery device are respectively communicated with a sealed condensate water recovery tank through control valves, one end of a condensate water steam output pipe is communicated with the sealed condensate water recovery tank, and the other end is communicated with the main steam pipe, the main steam pipe is connected with the steam gas pipe, the output end of the steam gas pipe is connected with the electromagnetic superheater device, the output end of the electromagnetic superheater device is connected with the steam exhaust pipe, the steam exhaust pipe is connected with the upper layer gas pipe, the lower layer gas pipe and the hot plate total gas pipe, and the electric control box is connected with the electromagnetic superheater device as an integral structure. The application effectively solves the problem of insufficient saturated steam heating temperature, greatly improves the corrugated board paper feeding temperature and the production line speed.

This invention provides a digital pH sensor, belonging to the field of digital pH sensor technology. It includes a secondary instrument host, with a display screen embedded in one outer wall and a multi-core cable extending from the other outer wall. A digital pH sensor is mounted at one end of the multi-core cable. A detection port is located at the center of the end of the digital pH sensor furthest from the multi-core cable. A boss is located at the center of the inner wall of one side of the detection port. A detection head is mounted on the side of the boss furthest from the multi-core cable. A circulation channel is formed between the interior of the detection port and the outer periphery of the boss. This invention utilizes the speed of the reciprocating motion of a ring piston and the resulting pumping force to control the flow velocity of water outside the detection head, ensuring the water flow is within an optimal range and flows upwards, facilitating bubble removal and uniformity, and guaranteeing the accuracy of the detection data.

The utility model discloses a full-automatic film laminating machine for gift box production. The full-automatic film laminating machine comprises an operation table; the film laminating and attaching mechanism is arranged above the operation table, and the film laminating and attaching mechanism is used for tightly attaching a film to a gift box paperboard; gift box paperboards are continuously conveyed through a conveying belt, glue dripping, film covering and ballasting are sequentially completed, the height of the film covering and laminating mechanism is adjusted through a first electric telescopic rod, a supporting spring drives a pressing roller support to enable the four corners of a ballasting roller to be evenly pressed, laminating bubbles are eliminated, glue solidification is accelerated through an air heater in a closed outer shell, and bonding is strengthened through a secondary ballasting roller. The automatic process is combined with double ballasting, the efficiency and the film pasting flatness are improved, the glue dripping mechanism adjusts the dislocation amount of a hole baffle and glue leaking holes of a glue storage box through a second electric telescopic rod, the glue flow speed is controlled, it is ensured that the thickness of a glue layer is uniform, different process requirements are met, and the film laminating stability and the material utilization rate are improved.

The utility model relates to the field of flanged gate valve devices, and discloses an adjustable high-precision flanged gate valve which comprises a flanged gate valve body, a first preset connecting plate is fixedly connected to the top end of the flanged gate valve body, a reserved clamping groove is formed in the top side of the first preset connecting plate, and a fixed adjusting plate is arranged on the top side of the flanged gate valve body. The bottom end of the fixed adjusting plate is fixedly connected with a second preset connecting plate, the bottom side of the second preset connecting plate is fixedly connected with a fixed sealing plate, the first preset connecting plate and the second preset connecting plate are connected through a fixing assembly, and the top side of the fixed adjusting plate is connected with an adjusting valve plate through an adjusting assembly. According to the flange gate valve, the use flexibility of the flange gate valve is improved, the flange gate valve can efficiently play a role in an industrial pipeline or a civil facility, safe and reliable operation of a pipeline system is guaranteed, the fault risk caused by unstable connection is reduced, and the service life of the flange gate valve is prolonged.

This utility model relates to the field of fuel cell technology, and in particular to a buffer device for a solid oxide fuel cell stack with overheat protection and combined heat and power functions. A biomimetic grapefruit peel structure protective shell is provided between the solid oxide fuel cell stack and several helical spring components. Several symmetrically arranged metal liquid cooling pipes are located on the biomimetic grapefruit peel structure protective shell along the fuel flow direction. A temperature sensor connected to the liquid cooling system is installed inside the biomimetic grapefruit peel structure protective shell to collect the internal temperature signal of the solid oxide fuel cell stack and control the start / stop and flow rate of the cooling water in the metal liquid cooling pipes. The outermost layer of the biomimetic grapefruit peel structure protective shell is resistant to mechanical vibration and has good thermal insulation, providing a good buffering effect while reducing heat loss from the stack. Smaller pores are provided in the middle layer, and larger pores are provided in the inner layer, improving the system's buffering efficiency through the porous structure. The metal liquid cooling pipes are located within the middle layer of the protective shell, achieving efficient heat conduction.

The application discloses a kind of continuous flow photocatalytic decarboxylation preparation biological hydrocarbon method, belong to the technical field of biofuel preparation.The method includes the following steps: high fatty acid compound, hydrogen atom transfer catalyst and acridine photocatalyst are dissolved in organic solvent, and mixed solution is obtained;The mixed solution is passed into circulating continuous flow light reactor, and photocatalytic decarboxylation reaction is carried out at room temperature for 12-24 hours, and reaction liquid is obtained;Reaction liquid is separated by reduced pressure distillation, and the biological hydrocarbon compound after decarboxylation is obtained.The application uses continuous flow light reactor to strengthen mass transfer and heat transfer efficiency, solves the problem that light penetration depth is limited in traditional batch photoreactor, and reaction is not uniform;Metal-free catalytic system is used, and the use of noble metal and potential residual risk is avoided.The method has mild reaction condition, higher product yield, good atom economy, and for unsaturated high fatty acid, olefin configuration can be maintained before and after decarboxylation, and has good industrial application prospect.

The utility model discloses a molten iron covering agent spreadability measuring device which comprises a base, a circular truncated cone, a hopper and a discharging pipe, the circular truncated cone is arranged in the center of the top of the base, the hopper is arranged above the circular truncated cone, the discharging pipe is arranged at the bottom end of the hopper, and high-speed cameras are arranged on the two sides of the discharging pipe through supports. A first rotating shaft is arranged at the central position in the hopper, stirring blades are uniformly distributed on the first rotating shaft, a second rotating shaft is arranged at the bottom end of the first rotating shaft, the second rotating shaft extends into the discharging pipe, and spiral blades are uniformly distributed on the second rotating shaft. By installing the base, the circular truncated cone, the hopper, the discharging pipe, the high-speed camera, the first driving motor, the first rotating shaft, the stirring blade, the second rotating shaft and the spiral blade, the rotating speed of the spiral blade can be controlled, then the flowing-out speed of a covering agent is controlled, and the influence on spreadability measurement is reduced.

This invention relates to the field of pipeline temperature control switch technology, and more particularly to a temperature control valve, comprising a valve body, a valve core, a temperature control unit, and a drive device. The valve body has an inlet channel and an outlet channel separated by a partition, and the partition has a connecting port. The valve core includes a push block positioned above the connecting port, with multiple arc teeth on its lower part. The output end of the drive device is connected to the push block. A sleeve is provided on the push block, with one end of a rotating rod connected to the output end of a drive motor, and the other end threadedly connected to the sleeve. The drive device causes the push block to gradually move towards the connecting port, and the lower part of the arc teeth gradually enters the connecting port. Water flowing through the connecting port exits through the channel between two arc teeth. Multiple channels between adjacent arc teeth form a multi-channel structure, reducing pressure loss and side leakage, greatly improving the performance of this temperature control valve. The threaded connection allows for more precise control of the channel opening size and flow rate ratio, resulting in more accurate temperature control.

The utility model discloses a pouring mechanism of a lens pouring device, which relates to the technical field of automatic glasses manufacturing devices, solves the problems that bubbles are generated, materials are not uniformly distributed and cannot be monitored in real time in the pouring process, and comprises a liquid absorbing module, a pouring module and a pouring flow speed adjusting module, the liquid suction module, the pouring module and the pouring flow speed adjusting module are all mounted on the mounting frame, the liquid suction module and the pouring module communicate with the pouring pipe and do not communicate with each other, the pouring module is used for pouring the interior of a mold, the liquid suction module is used for sucking excessive liquid in the mold, and the pouring flow speed adjusting module is used for adjusting the flow speed of the mold. The side face detection camera and the front face detection camera are arranged to detect the position of the opening of the mold and the position of the pouring liquid level, the pouring position can be accurately controlled, bubbles are effectively prevented from being generated in the pouring process, and the production efficiency is improved. And the pouring quality and the stability of the product quality are improved.

The utility model relates to a hydraulic stepless torque converter, and belongs to the technical field of automobile transmissions. The hydraulic stepless torque converter comprises a shell, transmission holes are formed in the two ends of the shell, and the shell is filled with hydraulic oil; the input shaft is rotationally connected to the inner side of one of the transmission holes; the pump wheel is fixedly connected to the end, facing the other transmission hole, of the input shaft, the shape of blades of the pump wheel is in a honeycomb spiral shape, and check rings which are evenly distributed are fixedly connected to the surface of the pump wheel; a user controls the variable hydraulic pump to suck hydraulic oil on one side and convey the hydraulic oil to the other side to push the cylindrical piston block to move; the cylindrical piston block drives the flow control baffle to move through the cylinder, the gap between the flow control baffle and the pump wheel is accurately adjusted, the flow and the flow speed of oil in the shell are effectively controlled, and therefore the traditional gear combination requirement is eliminated, and smooth stepless pitch changing is achieved.

The utility model relates to the technical field of low-carbon buildings, and discloses a low-carbon building. The building comprises a building body, a roof is fixedly installed at the upper end of the building body, a plurality of grooves are formed in the surface of the roof, inclined water flowing grooves are formed in the two opposite sides of the roof, a water collecting groove is welded between the same-direction ends of the inclined water flowing grooves, a filter screen is installed at the bottom of the water collecting groove, and a rainwater filtering device is arranged at the lower end of the water collecting groove; two adsorption areas are arranged at the upper end of the interior of the rainwater filtering device, a water storage area is arranged below the adsorption areas, a drainage pipe is arranged on the outer side of the bottom end of the water storage area, and when it rains, rainwater flows into a water collecting tank, flows into the adsorption areas to be further adsorbed after being filtered by a filter screen and finally flows into the water storage area to be stored; by means of the rainwater filtering and collecting device, rainwater can be recycled, use of tap water is reduced, the water using cost is reduced, and the purposes of low carbon and environmental protection are achieved.

This utility model discloses a liquid dispensing device for a medical nebulizer, comprising: a connecting sleeve for detachably connecting to the dispensing nozzle of the medical nebulizer; a flexible tube with one end fixedly connected to the connecting sleeve, and the other end for detachably connecting to a medicine bag or medicine bottle; a dispensing connector on the flexible tube for dispensing medication into the flexible tube; an exhaust valve on the flexible tube for venting gas from the medication solution within the flexible tube; a regulator on the flexible tube for initially adjusting the flow rate of the medication solution within the flexible tube; and a regulating valve on the flexible tube for precisely adjusting the flow rate of the medication solution within the flexible tube. This liquid dispensing device has a simple structure, is easy to use, can be quickly connected to the dispensing port of a medical nebulizer, can continuously nebulize, and will not experience interruptions in nebulization or leakage during medication dispensing. The medication flow rate is controllable, reducing the workload of nurses.

This invention discloses a powder forming hydraulic press and a powder hydraulic forming method. The hydraulic press includes a machine body, a main cylinder, an upper slide block, and a worktable. An upper mold for pressing powder is fixed to the bottom of the upper slide block. Return supports are symmetrically arranged on the left and right sides of the upper slide block, each driven by a return cylinder. A demolding slide block is stacked above the worktable. Demolding cylinders are installed below the four corners of the worktable, and the ejector rods of each demolding cylinder are connected to the corners of the demolding slide block. A mold mounting hole is provided in the central area of ​​the demolding slide block, and a through lower mold is installed in the mold mounting hole. A feeding mechanism driven by a feeding cylinder is provided behind the demolding slide block, and a pushing mechanism driven by a pushing cylinder is provided below the feeding mechanism. The powder hydraulic forming method includes: feeding, rapid descent of the main slide block, slow descent, rapid pressurization, working feed pressurization, pressure holding, demolding, upper slide block pressure release and return, demolding slide block return, pushing, and demolding slide block falling back. This invention results in high workpiece forming efficiency and good quality.

The utility model discloses a pagoda type branch flow control extrusion die which comprises an upper die and a lower die which are installed in a matched mode, a boss is arranged in the middle of the feeding side of the upper die, and a middle feeding hole penetrating in the feeding direction is formed in the range of the boss. On the feeding side of the upper die, peripheral arc-shaped feeding holes are formed in the periphery of the boss, and the feeding side face of the boss is flush with or higher than the feeding side faces of the peripheral arc-shaped feeding holes; a plurality of peripheral flow dividing bridges are arranged in the peripheral arc-shaped feeding hole, the feeding side face of each peripheral flow dividing bridge is lower than that of the peripheral arc-shaped feeding hole, the discharging side of the peripheral arc-shaped feeding hole is divided into a plurality of peripheral flow dividing holes through the peripheral flow dividing bridges, and the peripheral flow dividing holes are through in the feeding direction. The feeding device can achieve the effect that feeding is slow in the middle and fast in the periphery, the flow and the flow speed of all parts can be controlled more carefully and accurately, therefore, the feeding effect is good, the profile forming degree is good, and high-quality production of profiles with hollow middles and complex peripheral shapes can be achieved.

The utility model belongs to the technical field of water delivery and air exhaust, and particularly relates to an air exhaust valve with controllable air displacement, which comprises a valve body, a circular main air exhaust port and a circular auxiliary air exhaust port are arranged at the top end of the valve body, the main air exhaust port is fixedly connected with a main air outlet nozzle, and the auxiliary air exhaust port is fixedly connected with an auxiliary air outlet nozzle. The diameter of a ring opening of the main exhaust port is larger than or equal to that of a ring opening of the auxiliary exhaust port, the outer wall of the main exhaust nozzle is provided with threads and is in threaded connection with a main valve, and the outer wall of the auxiliary exhaust nozzle is provided with threads and is in threaded connection with an auxiliary valve. The low cost of a mechanical control technology can be kept, the problems that the precision of a structure used by a traditional exhaust valve is limited, the structure is prone to being blocked by impurities, and the problem that the structure responds to internal changes of a system in time are solved, and the exhaust valve is suitable for meeting the requirements of different conditions of daily household water pipe exhaust.

The invention belongs to the technical field of underground construction engineering, and particularly relates to an overpass existing subway tunnel protection structure which comprises isolation piles. A plurality of isolation piles are arranged, and the plurality of isolation piles are divided into three groups; the multiple isolation piles are arranged as main supporting components, the overall stability of the structure is enhanced, the isolation piles serve as anti-floating piles of the underground transportation hub structure, the anti-floating capacity of the structure is improved, and due to the arrangement mode of the three sets of isolation piles, when the structure bears loads, force can be more evenly dispersed, local stress concentration is avoided, and the service life of the structure is prolonged. The four inserting holes formed in the fixing frame provide accurate positions for inserting of the inserting plates, it is ensured that the conversion raft plate can be stably hoisted on the fixing frame, the conversion raft plate serves as a bottom plate of the underground transportation hub structure, the upper load is borne, the load is transmitted to the multiple isolation piles through connection with the fixing frame, and therefore the conversion raft plate is prevented from being damaged. And the bearing capacity of the structure is further enhanced.

The utility model relates to a kind of gravity flow type particle collection tank, including tank body, flow guide assembly, collection cavity and support structure, tank body top is equipped with feed inlet, bottom is equipped with discharge port, inside is through inclined flow guide plate and guide groove and constitutes flow guide assembly, bottom collection cavity is communicated with discharge port, in flow guide assembly, inclined flow guide plate surface is equipped with antiskid line and can be detachably connected, angle is adjusted easily, guide groove two sides are equipped with baffle, bottom is equipped with leakage hole, prevent overflow and guide to fall, detachable filter screen in collection cavity is installed by clamping groove, cooperation openable and closable material taking door realizes impurity filtration and convenient material taking.Adjustment bolt of support structure can adjust equipment levelness.The device uses gravity flow principle, solves the problem that traditional collection tank particle is accumulated, discharge is not smooth and poor adaptability, with the advantages of flow guide efficient, maintenance convenient, strong stability, applicable to the particle material collection and processing of chemical industry, food, building material etc.

This invention relates to a stepped thermal storage device and method based on phase change thermal storage materials. The invention pertains to the field of stepped thermal storage technology and includes: a thermal storage cylinder with a top cover, a water inlet pipe fixedly installed on the top of the top cover, a flow-blocking block inside the top cover, and a control component for moving the flow-blocking block; an inner tank fixedly installed inside the thermal storage cylinder, containing several stepped plates, with several phase change material heat exchange rods and several drainage grooves fixedly installed on the top of the stepped plates; two pull rods slidably installed inside the inner tank, with several moving brackets fixedly installed on the pull rods, and linkage plates fixedly connected to the stepped plates on the moving brackets; through the phase change material heat exchange rods, partitions, and baffles on the stepped plates, the water in the inner tank can have a longer contact time with the phase change material heat exchange rods, thereby achieving a high-quality heat exchange effect and ensuring that each batch of water entering the thermal storage cylinder can undergo high-quality heat exchange.

This utility model relates to the field of drilling gates, and more particularly to a combined drilling gate, including a gate installation channel. A support platform is fixedly installed at the lower end of the gate installation channel, and a fixed platform is fixedly installed at the upper end of the gate installation channel. Fixed brackets are fixedly installed on both sides of the support platform and the fixed platform. A liftable gate body is installed on the fixed platform and the gate installation channel. A motor box is fixedly installed at the upper end of the gate body. A drive motor is installed inside the motor box. A gate arm is fixedly connected to the output end of the drive motor. A rotating plate is fixedly connected to the lower end of the gate arm. This utility model, by setting up the gate body, drive motor, gate arm, and rotating plate, allows the opening and closing of the entire gate installation channel to be controlled by moving the gate body up and down, thereby controlling the overall height of the gate body and the rotating plate, and further controlling the flow rate of the drilling fluid. After the drive motor starts, it drives the gate arm to rotate, thereby driving the rotating plate to rotate, controlling the flow and flow rate of the drilling fluid, achieving dual control.

The utility model relates to a cold water machine circulation testing arrangement, including first water tank, second water tank and third water tank, the top fixed mounting of first water tank has water pump, and the top of first water tank's front end face is provided with temperature sensor, and the rear end of first water tank is fixedly installed in second water tank, and the front end face of second water tank has the gap with the rear end face of first water tank, and the top of second water tank's rear end face is provided with temperature sensor, and the right side of first water tank is fixedly installed in third water tank, and the right end face of second water tank and first water tank has the gap with the left end face of third water tank, and the top of third water tank is fixedly installed with heater, and the top of third water tank's front end face is provided with temperature sensor, can high -efficient and accurate control the temperature of cooling medium through the setting of heater and temperature sensor, has improved the convenience and security of operation.

The utility model relates to continuous casting nozzle technical field provides a kind of thin strip continuous casting core nozzle, including nozzle and adjusting structure, the inside of the nozzle is provided with inner chamber, the inside of the inner chamber is provided with adjusting structure.The utility model is provided with adjusting structure, by starting deceleration motor and driving flow guide plate rotation, and then it is convenient to control the flow speed of metal liquid, and the inside of flow guide plate is provided with porous structure, to be able to disperse metal flow, improve the uniformity of metal liquid, and then make metal liquid from flow guide groove outward under the inclination angle of boss Stable casting, avoid the uneven thickness of strip or broken strip caused by flow fluctuation.