249 results about "Suction control" patented technology

The invention relates to a coke oven gas collection system control and evaluation method. The coke oven gas collection system control method comprises the steps of disturbance feedforward control of single gas collection pipe pressure, basic control of single gas collection pipe pressure, pressure head control of a balance gas suction pipe, adjustment of a suction force control range of an air blower and basic control of suction force of the air blower. The coke oven gas collection system evaluation method comprises a coke oven gas collection system evaluation system, wherein the coke oven gas collection system evaluation system comprises an evaluation variable acquisition unit, a data preprocessing unit, a feature extraction unit, a working condition evaluation unit and a feature updating unit; the pressure control device assists operators in fundamentally solving the overall pressure control problem of the gas collection system, ensures that the pressure of the gas collection pipe fluctuates within the range required by the process, ensures the stable work of the coke oven gas collection pipe and the air blower, quickly adjusts the pressure of the gas collection pipe to a stable state, and ensures the safe operation of the whole coke oven gas system.

The invention discloses a magnetic adjustment water lubricated bearing and a bearing support control method, which are applied to a large ship propulsion shaft system, and comprise a bearing shell, an electromagnetic excitation module, a batten, a sensor module, a power supply driving module and a control system, a plurality of mounting grooves are formed in the bearing shell; an electromagnetic excitation module is arranged in each mounting groove and generates a variable magnetic field with set intensity; a plurality of magnetically soft alloy segments are arranged on the batten, the magnetically soft alloy segments correspond to the electromagnetic excitation modules one to one, and a magnetic field acts on the magnetically soft alloy segments to generate electromagnetic attraction force; the control system independently controls the excitation current of each electromagnetic excitation module according to data of the sensor module, and generates magnetic fields with different intensities to act on soft magnetic alloy areas at corresponding positions, so that precise control of local supporting rigidity and lubricating gaps of the water-lubricated bearing is realized, unbalance loading and abnormal wear risks are effectively reduced, and the service life of the water-lubricated bearing is prolonged. And the adaptive capacity of the bearing under low-speed heavy load and dynamic disturbance is improved.

The invention discloses a quantitative dispensing pen type syringe with a bidirectional medicine suction function, and relates to the technical field of syringes. The first injection structure and the second injection structure are clamped and matched, the first liquid suction assembly is fixedly sleeved with the first uniform mixing assembly, the liquid suction control assembly is slidably arranged in the first liquid suction assembly, the second liquid suction assembly is fixedly sleeved with the second uniform mixing assembly, and the liquid suction control assembly is slidably arranged in the second liquid suction assembly. The blending and dispensing box is communicated with the first liquid suction assembly through a first flow guide pipe, the blending and dispensing box is communicated with the second liquid suction assembly through a second flow guide pipe, and a third flow guide pipe is arranged at the position, close to the second needle head, of the second liquid suction assembly in a communicated mode. And the second uniform mixing assembly further comprises a double-point locking part which moves along the axial direction and can be elastically reset. The problem of medicine waste caused by excessive medicine preparation can be effectively avoided in the mode that medicine liquid in the injector is mixed and prepared and then injection is carried out.

The invention provides a plant fiber pulp suction control device and method.The control device is internally provided with one or more cavities, and the cavities are connected with external vacuum equipment through vacuum pipelines and connected with external air compression equipment through air compression pipelines; the control device is further provided with a detection unit and an adjusting unit so as to control the flow and / or pressure in the cavity. The requirements of wall thickness, strength, density and the like of a product can be met, and when multiple cavities exist, the requirements of wall thickness, strength, density and the like of a designated area can be met; compared with traditional paper-plastic equipment, when the pressure and the flow in the forming process are suddenly high and suddenly low, the flow and the pressure in the forming process can be detected and adjusted in real time, then the consistency of products is guaranteed, the product percent of pass of the paper-plastic containers is improved, and market requirements are greatly met.

The invention belongs to the field of scramjet engine isolation section suction control, and relates to a scramjet engine isolation section boundary layer suction control system and method. The control system comprises a scramjet engine, a fuzzy control system and a boundary layer suction system. The fuzzy control system comprises a wall surface pressure sensor and an FPGA (Field Programmable Gate Array) development board for setting a shock wave string leading edge position detection algorithm and a fuzzy controller, and the boundary layer suction system comprises a suction box, a suction device and a driving circuit. Scramjet engine isolation section boundary layer suction self-adaptive control is achieved through a fuzzy controller, a wall surface pressure sensor and a shock wave string front edge position detection algorithm. A scramjet engine boundary layer active suction control system which can be practically applied is provided; the proposed control system solves the problems of high flow loss and fixed suction parameters faced by passive suction.

The invention discloses a nuclear magnetic resonance detection device, and belongs to the technical field of nuclear magnetic resonance detection equipment improvement, the nuclear magnetic resonance detection device comprises a nuclear magnetic resonance scanning machine body and a patient bed, a bed frame is slidably arranged on a bed base, airflow channel assemblies are arranged in two sides of the bed frame, and two blowing and sucking control assemblies are arranged on two sides of the bed base; the two blowing and sucking control assemblies are connected with the two airflow runner assemblies respectively, each airflow runner assembly comprises a high-speed runner and a low-speed runner which are arranged in parallel, runner openings of the high-speed runners and the low-speed runners are attached to the inner wall of the detection cavity, and the high-speed runners are closer to the detection cavity than the low-speed runners. The high-speed flow channel and the low-speed flow channel are communicated with one ends of air uniformizing cavities respectively, the other ends of the two air uniformizing cavities are communicated with one end of an airflow conveying pipeline respectively, the blowing and sucking control assembly comprises a blowing and sucking pump, and the other end of the airflow conveying pipeline is communicated with the blowing and sucking pump. According to the breathing mask, viruses carried by a patient during breathing can be removed, and cross infection and spreading of infectious diseases caused in the subsequent using process are avoided.

The invention relates to the technical field of fire detection equipment, in particular to an energy storage power station composite fire detection device which comprises a mounting base, a water spraying pipeline is arranged in the middle of the mounting base, a conical shell is arranged in the middle of the water spraying pipeline, and a conical body capable of sealing the water spraying pipeline is arranged in the conical shell. A plurality of smoke suction mechanisms capable of sucking smoke in a fire scene are arranged on the peripheral side in the conical shell, a water curtain forming mechanism capable of forming a water curtain barrier in the fire scene is arranged at the bottom of the conical shell, and air suction control mechanisms in the smoke suction mechanisms utilize the deformation characteristic of bimetallic strips when the temperature rises. The opening and closing of an air inlet hole are automatically controlled, so that fire scene smoke is accurately sucked, the water curtain forming mechanism flexibly adjusts the size of a water curtain jet orifice according to the working state of the device through the cooperation between an upper sliding shell and a lower flow guide disc, and an effective water curtain barrier is formed in a fire scene.

According to the quantitative filling device for the high-viscosity fluid, the intelligent sensing module and an advanced control algorithm are integrated, and the problem that in the prior art, the filling precision is poor due to material viscosity fluctuation is effectively solved. The material viscosity is predicted in real time by utilizing easily measured physical parameters, and controller parameters are dynamically adjusted by taking the material viscosity as a feedforward signal, so that the system has excellent self-adaptive capability, and the filling precision can be stably superior to two thousandths under different production batches and working conditions; meanwhile, a pulse equivalent self-learning mechanism is introduced, errors caused by slow changing factors such as mechanical abrasion can be compensated, and long-term high-precision keeping is achieved. In addition, intelligent exhaust is combined with anti-leakage back-suction control, so that the stability of the production process and the cleanness of the package are guaranteed. According to the high-viscosity cosmetic filling system, the high-viscosity cosmetic filling efficiency, precision and reliability are remarkably improved, the dependence on human experience and the equipment maintenance frequency are reduced, and a key technical support is provided for achieving intelligence and digitization of cosmetic production.

The invention relates to the technical field of automatic control, and discloses a suction force self-adaptive adjusting method based on a suction cup base, comprising the following steps: collecting current attitude disturbance information of to-be-adsorbed objects including a lamp, glass, a steel plate, a plastic box body and a wood material plate, the attitude disturbance information comprises a pitch angle, a roll angle, an angular velocity and a vertical acceleration; estimating the offset of the gravity center of the to-be-adsorbed object relative to the center of the sucker array based on the attitude disturbance information; according to the offset, target adsorption force of the object to be adsorbed is determined, and distribution is carried out according to a set load distribution weight; the invention further discloses a suction force self-adaptive adjusting system based on the suction cup base. The system comprises a posture sensing module; an offset calculation module; an adsorption force distribution module; and an adsorption control module. According to the invention, dynamic coordination and accurate tracking control of multi-sucker adsorption force are realized by fusing attitude sensing, adsorption modeling and nonlinear predictive control.

The invention relates to a multifunctional efficient SOFC power generation management method and system for an island, and relates to the technical field of power generation, and the method comprises the steps: heating diesel oil to volatilize the diesel oil into diesel oil steam, and collecting heating parameter information; generating suction control information according to the heating parameter information; based on the suction control information, controlling a preset micro-interface reformer to suck water vapor and diesel steam, and performing cracking reforming to generate mixed gas; collecting a temperature detection value and mixing condition information of the mixed gas; generating hot delivery control information according to the temperature detection value and the mixing condition information; and transmitting the mixed gas to a preset SOFC pile based on the heat transmission control information for power generation. The island power generation device has the effect of reducing air pollution generated during island power generation.

The invention provides an automatic air suction control method and system based on air pressure difference, and the method comprises the steps: collecting historical environment temperature, condensation temperature and air suction power data, and constructing a mapping relation of environment temperature-condensation temperature and air suction power under different condensation temperature systems; the air pressure change rate under the same condensation temperature system and the temperature change rates under different condensation temperature systems are obtained; calculating a wind pressure sensitive threshold value and a temperature sensitive threshold value according to the wind pressure change rate and the temperature change rate, and determining a target condensation temperature under different condensation temperature systems according to the sensitive threshold values; and a balance critical value is calculated according to the target condensation temperature and the air pressure sensitive threshold value, the target air suction power at the target condensation temperature is determined based on the balance critical value, and the target air suction power is continuously updated. The air suction power can be automatically adjusted to maintain the flue gas purification effect, manual adjustment of a user is not needed, and the user experience is improved.

The sliding positioning platform comprises a laser film cutting machine body, a moving supplementing mechanism, a magnetic adsorption mechanism and a suction control mechanism, the laser film cutting machine body comprises a workbench, vertical plates are installed on the upper surface of the workbench, a lead screw is rotationally installed between the vertical plates, and the moving supplementing mechanism is installed on the upper surface of the workbench; the moving supplementing mechanism comprises a moving platform and a moving seat screwed on the surface of the lead screw, a magnetic adsorption mechanism is installed at the top of the moving platform and comprises a supporting plate, a through hole, a pressing piece and a magnetic suction plate, the magnetic suction plate is slidably installed on the inner side of the supporting plate, and the pressing piece is installed on the inner side of the through hole and used for fixing a to-be-cut film; the suction force control mechanism comprises a fixing plate, a linkage shaft, a swing rod, a ratchet wheel and meshing wedge-shaped teeth, the ratchet wheel is limited through the meshing wedge-shaped teeth, during operation, lifting of the magnetic suction plate can be controlled through the swing rod so as to drive the pressing piece to synchronously adjust the height, and it is guaranteed that a film to be cut is stably fixed and rapidly released after cutting is completed.

The invention relates to a test device and method capable of testing mechanical properties of hydrophilic and hydrophobic unsaturated soil, the test device comprises a pressure chamber, the pressure chamber is located at the center position of the whole device, an axial loading system is located below the pressure chamber, and the axial loading system is connected with the pressure chamber through a loading frame; the axial loading system is connected with the information acquisition system; the pneumatic control system is positioned on the side of the pressure chamber and connected with the pressure chamber through a pipeline; the data acquisition system is positioned beside the console or the computer and is connected with the sensor at each unit; the data processing system is connected with the air pressure control system and the back pressure control system, and the data processing system is connected with the axial loading system; the sample is positioned in the center of the pressure chamber; the hydrophobic soil suction control unit and the hydrophilic suction control unit are located at the upper end and the lower end of the sample, make close contact with the sample, ensure uniform pressure transmission and are connected with the air pressure control system through pipelines. According to the invention, the accuracy and wide applicability of the mechanical property test of the unsaturated soil are improved.

The application discloses a kind of thrombus suction control method and thrombus suction device, and thrombus suction device includes suction assembly, suction assembly includes the shell with pressure cavity, piston rod and suction catheter, thrombus suction device also includes the motor of piston rod movement and the controller connected with motor, control method is: suction catheter is positioned to the blood vessel without thrombus, make motor operate according to speed V0, calibrate the pressure value B in pressure cavity under normal blood condition;Suction catheter is positioned to the blood vessel with thrombus, make motor operate according to speed V1, V1≤V0, make dynamic pressure value A0 in pressure cavity: when A0≤B, make motor keep speed V1 operation;When A0>B, make motor increase from speed V1: when B<A0≤C, make motor increase to speed V2 operation;When C<A0≤D, make motor increase to speed V3 operation;When D<A0≤E, make motor increase to speed V4 operation.The control method thrombus removal efficiency is high, and blood loss can be reduced.

The application relates to the technical field of wafer dicing, and provides an adsorption work disc for a dicing machine, a wafer adsorption control method and the dicing machine. The adsorption work disc comprises a disc body and a sealing support. The disc body comprises a base and an adsorption part. The adsorption part is located above the base and is connected with the base to form a gas guide channel. The adsorption part comprises a plurality of adsorption units. The adsorption units are communicated with the gas guide channel. An installation groove is arranged at the edge area of the adsorption part. The installation groove is arranged at the edge of the adsorption work disc, and the sealing support is arranged in the groove. The sealing support supports the edge of the wafer. The sealing support has certain flexibility. When the wafer is adsorbed, the edge of the wafer will not be warped due to the reverse abutting force. Meanwhile, a relatively closed space is formed between the wafer and the adsorption part of the adsorption work disc and the sealing support, so that the adsorption efficiency and adsorption effect of the adsorption units on the middle area of the wafer are improved.

A vacuum suction control system for use with a vacuum source and a suction conduit includes a connection tube configured to connect the vacuum source with a lumen of the suction conduit. An on-off valve is operably coupled to the connection tube, and a sensing unit is configured to detect flow within the connection tube and provide a signal representative of the flow. A controller receives the signal to decide whether to open or close the valve. The controller can automatically close the valve to shut off the flow when the flow through the connection tube is unrestricted or according to a predetermined timing sequence. The controller can also periodically open a closed valve to determine whether the flow has entered an acceptable range. The controller can also pulse the suction with a pressure manipulation assembly when the flow is restricted or occluded.

The invention discloses an electrically-driven composite valve with a back-suction effect in the field of wafer cleaning, which comprises a valve seat, a first valve and a second valve, the valve seat is provided with a through flow channel, the first valve is located at the upstream of the flow channel and used for on-off control, the second valve is located at the downstream of the flow channel, and a cylindrical back-suction chamber is arranged at the flow channel position and used for back-suction control. The core of the second valve is a piston type valve element, and the second valve is driven by a driver to axially move in the cavity. According to the valve, traditional pneumatic drive is replaced with electric drive, after the first valve is closed, the driver drives the piston type valve element to move by the preset stroke in the axial direction, the effective volume of a cavity is increased, negative pressure is formed in a flow channel, liquid medicine is sucked back, and back suction control of the preset stroke is achieved through axial movement of the piston type valve element; stable execution of the resorption action is ensured, and the problem of pollution caused by dripping of liquid medicine is effectively solved.

The utility model discloses a blister device that is convenient for demoulding, including a blow molding device control frame, the upper end of the inner side of the blow molding device control frame is fixedly connected with a blow molding feeder, the inner side of the blow molding device control frame is movably connected with a blow molding mold, and a purification mechanism is positioned and installed on one side of the blow molding device control frame. The blister device that is convenient for demoulding described in the utility model can provide suction through the purification mechanism, and the suction control pump can provide suction, and some odors generated after the plastic material is heated can be sucked to the inner side of the purification positioning box through the odor suction connection expansion bucket and the connection transmission pipe. The inner side of the purification positioning box has an odor purification core and an activated carbon purification core, which can filter and purify these gases, can effectively remove the odors generated during the blister process, improve the working environment, make the air on the production site fresher, and improve the working comfort of employees. At the same time, it can also reduce the odor attached to the blister products.

A surgical device includes an outer member, an inner member, and at least one locking element. The inner member is at least partially supported within the outer member. The at least one locking element is configured in a first arrangement of the surgical device to lock the inner member in a first position and configured in a second arrangement of the surgical device to unlock the inner member from the first position. The at least one locking element is configured to change from the first arrangement to the second arrangement upon coupling the inner member in an operational arrangement to a hand piece.

An operating system for an endoscopic retrograde cholangiopancreatography (ERCP) surgical robot includes: an operating table, where a patient lies on the operating table; an endoscopic actuation end device; an endoscopic accessory operation end device; a console, including an operating handle, a foot switch, and a three-dimensional (3D) handle; and a display screen for human-computer interaction. A forceps lifter control module, a knob control module, a catheter drive module and a water vapor suction control module on the endoscopic actuation end device are controlled through the operating handle, the foot switch, the 3D handle and the touch screen on the console. A guide wire drive module on the endoscopic accessory operation end device remotely controls the insertion and feeding of a guide wire or catheter to complete the surgery. The operating system reduces the harm caused by long-term surgical radiation to operators and avoids hand shaking of doctors during operation.

The invention discloses a dredge ship energy consumption management and accurate mud suction control method, and relates to the technical field of ship engineering and intelligent control, and the method comprises the following steps: collecting a plurality of operation control strategies associated with a dredge ship for performance verification, and filing the optimal control strategy passing the performance verification; based on the received ship operation starting signal, whether operation authority is granted to the ship system or not is judged; and if the ship system is granted by the operation authority, selecting a reference regulation and control scheme of the ship from the archived optimal control strategy, and issuing a first regulation and control instruction to the ship system. Through performance verification, only the control strategy is archived and optimized, compatibility of the strategy and the ship working condition is ensured, the abnormal risk in the mud suction process is reduced, and the operation efficiency is improved; based on threshold comparison of the energy efficiency improvement rate and the stability index, data-driven strategy optimization is realized, the unit operation energy consumption can be averagely reduced, and the resource utilization rate is improved.

A modular portable anti-choking device featuring multiple suction patterns controlled via embedded computing programs is disclosed. The device incorporates an air propeller to generate suction, user-type settings for customizations, and pressure sensors for safety. A dual power supply system enables portability. The compact design makes it suitable for use in various environments including homes, restaurants, and any other settings. Its modular structure allows for easy disassembly, cleaning, and reassembly, making it easy for repeated use. The device ensures effective, safe, adaptable, and reliable operation by dynamically adjusting suction strength based on user-type and real-time sensor data, while minimizing the risk of airway injury caused by excessive suction pressure.

The present invention is entitled "Suction Control Valve". The present invention provides a suction control device that may have a suction control valve and a switch, button, slider, trigger, grip, lever, rotary wheel, rotary valve, handle, or other engagement portion for adjusting the size of the suction control valve. The suction control engagement portion may be conveniently positioned and configured to be operated while simultaneously stabilizing the catheter and / or retracting the elongate member. The suction control device may be integrated with a hemostatic valve, integrated with a wire gripping device, and / or attached to an inlet, outlet, hose, pump, or syringe in series with the suction flow path.

The present application discloses a kind of cigarette combustion characteristic parameter and flue gas release test equipment and test method, it is related to cigarette combustion test technical field.Cigarette combustion characteristic parameter and flue gas release test equipment include rack, double turntable device, control unit, first detection device and second detection device, several cigarette suction devices are all with clamping mechanism, suction pump and suction pipeline, suction pipeline one end is connected with suction pump, other end clamping mechanism inside is connected, second detection device includes multiple detection pieces and with multiple detection pieces one-to-one corresponding docking pipeline, one end of multiple docking pipelines is connected with the middle part of corresponding suction pipeline, detection piece is carbon monoxide detector or aerosol particle size spectrometer, control unit includes suction control module and detection control module, can synchronously obtain cigarette combustion characteristic parameter and flue gas carbon monoxide release, or synchronously obtain cigarette combustion characteristic parameter and flue gas aerosol particle size distribution, detection efficiency is higher.

To improve the durability of an electric braking device.SOLUTION: A suction control unit (10) of an electric braking device (1) executes a control for decreasing the forward-movement speed of a piston (P) as a target pressure value increases, in which the control is executed at least for a period after a hydraulic pressure on a hydraulic chamber side with respect to a switching valve (NC1) increases to the proximity of the target pressure value, in a period in which a forward-movement control is executed.SELECTED DRAWING: Figure 1

The present invention relates to the field of medical device technology, and specifically to a trigger mechanism for a multifunctional ablation electrode, and an ablation electrode with flushing and suction functions. The trigger mechanism includes: a flushing and suction sleeve composed of a flushing and suction inner tube and a suction telescopic tube that are slidably connected; an electrode; and a suction control wrench. The suction control wrench controls the activation of the suction function when closed. The suction control wrench is transmission-connected to the telescopic tube push block sleeved on the flushing pipeline, and the telescopic tube push block is detachably connected to the telescopic tube connecting block on the suction telescopic tube. When the suction control wrench triggers the suction action, the suction control wrench links the telescopic tube push block to move toward the telescopic tube connecting block, and is connected to the telescopic tube connecting block to push the suction telescopic tube out. By linking the suction control wrench to the action of the suction telescopic tube, the suction function can be activated without separately moving the suction telescopic tube to extend forward, effectively reducing the complexity of the operation for medical workers.

The invention relates to a magnetic pull wire type drainer which comprises a water plug, a water stop ring, a flange, a rocket body assembly, a special pad, a friction pad, a nut, a main body, a live shaft and a pull wire assembly, and the water stop ring is arranged in a groove in the lower portion of the water plug in a sleeved mode; the rocket body assembly is arranged in the main body and matched with a boss on the main body in a limiting mode, the rocket body assembly is composed of a rocket body, a first magnet and a bottom cover, the upper portion of the rocket body is in threaded connection with the water plug, the first magnet is arranged in the bottom cover, and the bottom cover is in threaded connection with the lower portion of the rocket body. Through magnetic attraction control, installation is convenient and fast, and opening and closing of the water plug can be achieved through the attraction and repulsion principle of the magnets.

An industrial plant includes a flue gas processing system, a stack which receives a flue gas from an industrial process, a flue gas processing unit, a suction line connected between the stack and the flue gas processing unit, a fan arranged in the suction line, a sensor which provides a signal representative of a gas flow rate or a change thereof through a discharge outlet of the stack, a controller which regulates a flow through the suction line based on the signal, and a flow restriction arranged in the suction line upstream of the fan. The discharge outlet is open to the atmosphere. The fan draws the flue gas from the stack to the flue gas processing unit and has a control arrangement which controls a pressure in the suction line upstream of the fan and downstream of the flow restriction or a pressure differential across the flow restriction.

The present invention discloses a sliding positioning platform for a laser film opening device, which includes a laser film cutting machine body, a moving supplement mechanism, a magnetic adsorption mechanism and a suction force control mechanism. The laser film cutting machine body includes a workbench, a vertical plate is installed on the upper surface of the workbench, a lead screw is rotatably installed between the vertical plates, a moving supplement mechanism is installed on the upper surface of the workbench, the moving supplement mechanism includes a moving platform and a moving seat screwed on the surface of the lead screw, a magnetic adsorption mechanism is installed on the top of the moving platform, the magnetic adsorption mechanism includes a support plate, a through hole, a pressing member and a magnetic adsorption plate, the magnetic adsorption plate is slidably installed inside the support plate, the pressing member is installed inside the through hole and is used for fixing the film to be cut, the suction force control mechanism includes a fixing plate, a linkage shaft, a swing rod, a ratchet wheel and an engaging wedge tooth, the ratchet wheel is limited by the engaging wedge tooth, during operation, the lifting of the magnetic adsorption plate can be controlled through the swing rod to drive the pressing member to synchronously adjust the height, so as to ensure the stable fixation of the film to be cut and quickly release it after cutting is completed.

The present invention provides a medical device comprising an outer tube, an operating unit, and a control unit. At least a portion of the operating unit is located inside the outer tube. The control unit has a control unit channel that communicates with the outer tube along a first direction. The control unit includes a control module, and the control module includes a suction control unit, a suction port actuator, and a switch unit. The suction control unit has a stopper facing the channel and is movably arranged along a second direction. The suction port actuator and the suction control unit are located on opposite sides of the channel and are driven by the suction control unit. The switch unit is configured to switch the operating state of the operating unit.