18results about How to "Precise flow control" patented technology

A sealed tank comprises a tank body and a tank cover arranged on an opening of the tank body, a first sealing element is arranged between the tank body and the tank cover, at least one side or one corner of the opening edge of the tank body is formed with an inclined portion which is inclined downward from top to bottom, the tank cover is formed with an inclined area corresponding to the inclined portion, a slanting downward discharge port which communicates with the inside of the tank body is arranged in the inclined area, the tank cover is provided with a sealing cover which can open and close the discharge port, and a second sealing element is arranged between the sealing cover and the discharge port. By arranging the inclined portion on the opening edge of the tank body, arranging the corresponding inclined area and the slanting downward discharge port on the tank cover, and arranging the sealing cover with the second sealing element, the discharge port has a flow guide angle due to the inclined design of the inclined portion and the inclined area, so that the pouring flow can be accurately controlled, the spilling and leakage can be reduced, the container inclination angle can be reduced to improve the operation convenience, and the discharge port can be opened and closed separately by the sealing cover, so that the tank cover is not opened frequently, the sealed environment in the tank is maintained, and the diversified use requirements are met.

The application is suitable for the technical field of valve control, and provides a swing valve with controllable flow, which comprises a valve body, a power generation assembly, a swing shaft, an orifice plate flowmeter, a valve clack and a storage battery, an annular insert block is installed in the valve body, a rotating support is fixedly connected to the lower part of the annular insert block, the rotating support is hingedly connected with the swing shaft through a rotating arm, the swing shaft is connected with a first electric rotary cylinder, and the swing shaft is detachably installed with the valve clack. The valve clack comprises a middle body, a left clack, a right clack, a second electric rotary cylinder and a stud, the bottom of the middle body is provided with a wedge-shaped buckle, an electric telescopic cylinder is installed in the valve body, and the telescopic buckle of the electric telescopic cylinder can be matched with the wedge-shaped buckle; the left clack and the right clack are rotated under the driving of the respective second electric rotary cylinder, and the stud clamps or loosens the left clack and the right clack when rotating. The application can switch the flow by controlling the number and angle of the opening of each part, the flow switching has five modes, and the flow of liquid medium can be accurately controlled.

The utility model discloses a kind of dry-process acetylene carbide slag pneumatic conveying systems, including carbide slag storage bin, sludge conveyor, carbide slag buffer tank, pneumatic conveying pipeline and reaction kettle, the lower outlet of the carbide slag storage bin is connected with electric plug-in valve one, electric plug-in valve lower portion is connected with feeder, the lower portion of the feeder is connected with sludge conveyor, the end of the sludge conveyor is connected with sludge drop pipe, the sludge drop pipe outlet is connected with electric plug-in valve two, the lower portion of the electric plug-in valve two is connected with carbide slag buffer tank, the lower outlet of the carbide slag buffer tank is connected with control valve, the lower portion of the control valve is connected with the pneumatic conveying pipeline, the lower portion of the control valve is also connected with nitrogen pipeline, and reaction kettle is connected at the end of pneumatic conveying pipeline.The utility model can stably, efficiently convey original carbide slag to subsequent deep processing reaction kettle, reduce enterprise production cost, improve on-site cleanliness.

The utility model discloses a kind of chromatography devices of flow rate and time controllable, belong to medical instrument technical field, including liquid storage bottle, the upper end of liquid storage bottle is provided with inlet, the lower end of liquid storage bottle is provided with pipeline one, the lower end of pipeline one is provided with microfluid pump, the lower end of microfluid pump is provided with chromatography column, the lower end of chromatography column is provided with pipeline two, the lower end of pipeline two is provided with detector, the utility model is by being provided with the structure that liquid flow rate and reaction time can be controlled, the accurate control of liquid flow is realized, controller can automatically adjust the speed of microfluid pump and electromagnetic valve start-stop time according to preset experimental parameter, ensure that liquid flows at the speed set, and complete reaction within predetermined time, this design improves the accuracy and repeatability of experiment, especially suitable for the chromatography experiment that needs accurate control flow rate and time, can effectively improve experimental efficiency and the reliability of data.

This invention discloses a water quality monitoring stratified sampling device, comprising a sampling bucket, a support rod at the top of the sampling bucket, an air rod inserted through the middle of the support rod, the air rod penetrating the sampling bucket, a piston plate at the bottom of the air rod, an exhaust channel on one side of the piston plate, and an opening and closing part within the exhaust channel; a locking rod on one side of the support rod, the outer end of the locking rod locking into a lock hole on the top side of the sampling bucket, a rope on the outer side of the locking rod, and a float at the other end of the rope; a main water inlet at the center of the bottom of the sampling bucket, with a valve on the main water inlet; several water outlets on one side of the sampling bucket, with water outlet pipes connected to the water outlets; several rotating parts inside the sampling bucket, dividing the interior of the sampling bucket into several sampling chambers, with an auxiliary drive part at one end of each rotating part, which is installed on the outer wall of the sampling bucket, to achieve independent segmentation of water samples at different depths, effectively avoiding cross-contamination between water samples and improving the accuracy of monitoring data.

This utility model relates to the field of feeding equipment technology, specifically a device for rapid feeding of glass fiber products. It includes a storage bin with legs fixedly mounted on its surface. A rotary motor, a uniform feeding rod, an electric telescopic rod, a spring, and an anti-blocking scraper are incorporated. The rotary motor drives the uniform feeding rod to rotate, stirring and dispersing the glass fiber in the storage bin, ensuring uniform and loose material distribution for smooth feeding. The electric telescopic rod precisely adjusts the position of the anti-blocking scraper according to the condition of the inner wall of the discharge hopper, ensuring close contact with the inner wall. Combined with the elasticity of the spring, the anti-blocking scraper adaptively scrapes away residual material from the inner wall of the discharge hopper, preventing blockage. These structures work together to form a work chain from material pretreatment to anti-blockage, effectively avoiding downtime caused by material agglomeration and blockage, and ensuring efficient and continuous feeding of glass fiber products.

The utility model relates to metal surface treatment technical field especially relates to a metal surface treatment equipment with high -efficient rust removal function, including the box door, the rear end of box door is installed with the box body device through the hinge, the front end middle part fixed connection of box door has the observation cover, the upper end middle part fixed connection of box body device has the processing device, the lower box wall middle part fixed connection of box body device has the fixed link, the upper end fixed connection of fixed link has the bearing openwork dish, the front end left part fixed connection of box door has the control module. The metal surface treatment equipment with high -efficient rust removal function, through the high -efficient environmental protection of multidirectional spray rust removal liquid, has no dust pollution, and the waste liquid can be recycled and reduce the cost, can accurately control and reduce metal damage, guarantees the follow -up use performance of metal, and the efficiency of metal surface treatment is comprehensively promoted.

The utility model provides the equipment of dropping of reation kettle, including base and fixed base, be provided with the limiting component on the fixed base, the limiting component includes limit gear, rack seat, screw rod and rotating column, the inside rotation connection of fixed base has rotating column through bearing, the bottom fixed mounting of fixed base has installation shell joint. Through setting limiting component, rotate the rotating seat to proper angle, rotate hand wheel, and then carry out the limiting to rotating seat, can easily switch the required reagent corresponding liquid storage barrel to the dropping position through rotating rotating seat, need not complicated dismounting and reinstallation process, improved the convenience of operation, when rotating seat switched target liquid storage barrel to proper position fixed, can ensure that the relative position of dropping pipe and liquid storage barrel export is stable, help accurate control the speed, flow and direction of drop, avoid the drop error caused by the position instability, thereby improve the accuracy and repeatability of reaction.

The utility model relates to the technical field of welding automation, concretely is a kind of welding auxiliary device of adjusting flux supply quantity, the core technical effect of the device is reflected in two aspects of accurate feeding and efficient recovery, the design of cylinder drive baffle, lock pin positioning in feeding module, accurately control flux flow;Vibration module utilizes driving motor to drive cam to make conveying pipeline vibrate, ensure that flux is smoothly conveyed to welding interface, in the recovery aspect, the air pump of power module provides suction force for collection head, and excess flux is quickly recovered, and the filter screen in recovery pipeline effectively filters impurities, realizes flux purification and reuse, improves resource utilization, reduces welding cost.

The utility model relates to shock absorber technical field, and disclose a shock absorber internal hydraulic buffer stop structure, including the first cylinder, the first cylinder inner wall top is fixedly connected with the second cylinder, the oil cavity is formed between the first cylinder and the second cylinder, the second cylinder inner wall is provided with buffer stop mechanism. Through buffer stop mechanism realizes double buffering effect. When piston rod drives piston to move downward, second fixed ring moves down with piston, extrudes lift ring, makes buffer spring compression, utilizes the elastic deformation of spring to absorb vibration energy, provides first buffering, when piston continues to move down and approaches limit position, second fixed ring and the rubber block of first fixed ring top contact, the elastic buffer of rubber block further reduces piston descending speed, realizes second buffering. Double buffering mechanism not only effectively reduces vibration transmission, still can prevent piston and cylinder rigid impact under extreme working condition, prolongs shock absorber life.

The utility model discloses a numerical control machine tool guide rail with self -lubricating structure, the utility model relates to mechanical engineering technical field, the utility model, including: workstation, the inner wall sliding connection of workstation has sliding device, the outer wall fixed connection of sliding device has lubricating device, through setting the cooperation of sliding device and lubricating device, oil tank imports lubricating oil, and its bottom end connected conical pipe output end is conical, can accurate control lubricating oil flow, forms even and effective oil film on the surface of guide rail, reduces abrasion, and the discharge pipe of symmetric connection of the bottom end of sliding slot can discharge extra lubricating oil and impurity in time, and the gasket of inner wall contacts with the outer wall of runner, further optimizes the sliding process, and reduces the jam phenomenon, and the cleaning cotton can clean the guide rail when sliding on the workstation simultaneously. Cleaning cotton can adjust position through screw rod pin, and the runner is covered, can effectively remove the chip, dust and other impurities on the surface of guide rail, prevent its purpose from entering the sliding component.

Embodiments of the present application disclose a CVD reaction device and a gas supply method applied to the CVD reaction device. The CVD reaction device comprises a reactor, a first pipeline, at least two second pipelines, at least one third pipeline and a first flow controller. The reactor is provided with a reaction cavity. The first pipeline forms a flow path for the reaction gas to flow between the inlet end and the outlet end. Each second pipeline is in communication with the outlet end and the reactor respectively. The third pipeline is in communication with at least one second pipeline and can supply carrier gas to the second pipeline. The first flow controller is arranged in the third pipeline, and the first flow controller can adjust the flow of the carrier gas flowing into the second pipeline from the third pipeline, so that the CVD reaction device can change the flow ratio of the reaction gas flowing into the reaction cavity from different second pipelines by changing the gas flow of the third pipeline.

The utility model discloses a kind of aromatherapy seat and the fan of application thereof, aromatherapy seat includes shell and the drive motor, aromatherapy bottle, bottle seat and cotton ring being arranged in the shell, drainage device is arranged at the bottle mouth of the aromatherapy bottle, when the bottle seat or cotton ring is rotated by the drive motor, the drainage device on the aromatherapy bottle can be contacted with at least part of the inner ring surface of the cotton ring to guide the aromatherapy liquid in the aromatherapy bottle to flow on the cotton ring;Such aromatherapy seat can well control the output of aromatherapy liquid, and aromatherapy seat is applied to fan to realize the speed of accurate control aromatherapy diffusion.

This invention provides a device for dynamically controlling the flow rate of electroplating solution in multiple stages using Bernoulli's principle. The device includes a multi-stage dynamic flow control component, comprising a static pressure pipe, at least two sets of parallel variable-diameter branch units, a manifold pipe equal in number to the variable-diameter branch units, and a flow meter. Each variable-diameter branch unit includes multiple first variable-diameter branches, multiple small-diameter valves, and multiple second variable-diameter branches. The input end of each first variable-diameter branch is connected to the static pressure pipe, and its output end is connected to the input end of one of the small-diameter valves. The output end of each small-diameter valve is connected to the input end of a second variable-diameter branch, and the output end of each second variable-diameter branch is connected to the input end of the manifold pipe. The output end of the manifold pipe is connected to the input end of the flow meter. This invention relates to the field of TGV electroplating processes.

This invention relates to the field of waste heat recovery technology, and discloses a waste heat recovery system and method based on steam condensate. The method utilizes high-precision sensors to collect temperature distribution data and pressure fluctuation data of steam condensate during its flow in a pipeline, forming a dynamic thermodynamic parameter set. Multi-scale decomposition technology is applied to process the dynamic thermodynamic parameter set, extracting high-frequency and low-frequency components of the temperature distribution data, and separating the periodic and non-periodic characteristics of the pressure fluctuation data to generate a thermodynamic feature matrix. Based on the thermodynamic feature matrix, flow stability and waste heat transfer efficiency indices for steam condensate are constructed. Based on the dynamic relationship between these two indices, the heat recovery stages of steam condensate are divided, and the corresponding temperature and pressure thresholds for each stage are marked. Based on the marking results of the heat recovery stages, the heat exchange rate of the waste heat recovery device and the condensate flow path are adjusted to generate an optimized control command set.

This utility model discloses a gravity differential pressure odorization device, belonging to the technical field of natural gas odorization equipment. The device includes an odorant storage tank positioned above a natural gas pipeline. The top of the odorant storage tank is connected to an upstream pressure compensation pipe of the natural gas pipeline, and the bottom of the odorant storage tank is connected to a downstream filling pipe of the natural gas pipeline. A pressure compensation solenoid valve is installed on the pressure compensation pipe, and a one-way valve and a filling solenoid valve are sequentially installed on the filling pipe. A level gauge is installed on the odorant storage tank. This utility model utilizes the natural pressure difference between the gravity of the odorant liquid column and the natural gas pressure to drive the injection of odorant, saving energy and eliminating the need for electrical explosion-proof design. Simultaneously, the controller can adjust the odorization amount according to changes in the liquid level in the storage tank or changes in the flow rate of the natural gas pipeline, ensuring that the natural gas reaches the safe odor threshold.

The utility model provides a kind of conveying production line of powdery sludge, conveying production line input end is connected with first scraper, conveying production line includes second scraper conveyor and screw conveying system, the input end and output end of second scraper conveyor are connected with first scraper and screw conveying system respectively, and there is manual gate valve between the output end of second scraper conveyor and screw conveying system;Screw conveying system includes several in space head-to-tail connection screw conveyer, the discharge port of last end screw conveyer in conveying direction is connected with bin top, bin two sides are fixed on ground by elevating support, bin bottom is equipped with discharge valve, and bin outside wall is equipped with vibration motor;Each screw conveyer includes conveying pipeline, screw blade and driving motor, and the one end of screw blade in conveying pipeline is connected with driving motor.The utility model effectively solves material adhesion, caking problem, and improves conveying efficiency.