478 results about "Suction flow" patented technology

The present disclosure relates to a dehumidifier. The dehumidifier according to an embodiment of the present disclosure may include a fan that generates a first suction flow and a second suction flow, and a dehumidification module provided on one side of the fan and selectively separating moisture in the first suction flow. The dehumidifier includes a first suction part through which the first suction flow passes and a second suction part through which the second suction flow passes, and the first surface on which the first suction part is formed and the second surface on which the second suction part is formed may form surfaces that face each other.

A dust collecting attachment includes a dust suction portion and a main body. The main body has a dust collection passage communicated with the dust suction portion. The dust suction portion has a negative pressure by exerting a suction force to the dust collection passage from a hose. The dust suction portion includes an inner pipe through which a tip tool passes, a first dust suction flow passage, and a second dust suction flow passage. The first dust suction flow passage opens a first suction opening to a side of a workpiece in an outside in a radial direction of the inner pipe and is communicated with the dust collection passage. The second dust suction flow passage opens a second suction opening to an opposite side of the workpiece in the outside in the radial direction of the inner pipe and is communicated with the dust collection passage.

The invention relates to the technical field of flow field temperature testing, in particular to a gas phase temperature measuring probe for a high-speed low-temperature cloud field and a design method and application of the gas phase temperature measuring probe. The design method of the gas phase temperature measurement probe for the high-speed low-temperature cloud field comprises the following steps: designing a temperature measurement probe configuration on the basis of a backward temperature measurement probe configuration in combination with a backward step two-phase flow theory in the backward temperature measurement probe configuration and working conditions of the high-speed low-temperature cloud field; secondly, two-phase flow simulation and suction flow simulation are carried out based on the temperature measurement probe configuration, and suction flow is designed; thirdly, icing numerical simulation is carried out, and two-phase flow simulation is carried out; and finally, analyzing the simulation result of the near-wall flow field change of the iced temperature measurement probe configuration and the simulation result of the gas-liquid flow characteristics, and if no liquid drop is monitored at the detection position of the temperature sensing element in the iced temperature measurement probe configuration, completing the design; otherwise, repeating the above steps until no liquid drop is monitored at the detection position of the temperature sensing element in the frozen temperature measurement probe configuration.

The invention relates to the technical field of dredging equipment, and discloses hydraulic engineering dredging equipment which comprises a silt pumping barrel, a second inner barrel is arranged on one side in the silt pumping barrel, a first inner barrel is arranged on the inner side of the silt pumping barrel, and the first inner barrel and the second inner barrel form an isolation barrel. And one side in the silt pumping barrel is divided into an inner cavity and an outer cavity by the isolation barrel. Suction flow of sludge mixed liquid in the outer cavity and the inner cavity is distributed through the flow dividing pipe and the main pipe, the stirring rod drives the sludge mixed liquid to rotate and is matched with the elastic conical filter screen to guide residual sludge blocks, and the inclination angle of the elastic conical filter screen is adjusted according to the quantity of the residual sludge blocks, so that the sludge blocks are more uniformly sucked. The flow distributed by the outer cavity is increased in cooperation with the increase of the opening degree of the proportional valve, the efficiency that the rotating rod is matched with hard impurities in sludge for grinding is improved, meanwhile, the amount of guided sludge blocks is increased in cooperation with shaking of the filter screen, the filter screen is prevented from being blocked, and the overall dredging efficiency is improved.

The present disclosure relates to a cleaner system including: a cleaner; a cleaner station; and an imaginary plane including an imaginary suction flow path through line penetrating a suction flow path in a longitudinal direction and an imaginary suction motor axis defined by extending a rotation axis of a suction motor, in which when the cleaner is coupled to the cleaner station, the plane penetrates at least a part of the cleaner station, such that a center of gravity of the cleaner is disposed to pass through a space for maintaining balance of the station, and as a result, it is possible to stably support the cleaner and the station while preventing the cleaner and the station from falling down.

Various embodiments are generally directed to devices, systems, and methods for controlling the flow of fluids in endoscopic systems, such as endoscopic ultrasound (EUS) enabled endoscopes. Some embodiments are particularly directed to valve sets and / or valve interface mechanisms for controlling air, water, and / or suction flow through a valve well for an endoscopic system. Several embodiments are directed to user interface mechanisms and techniques for enabling an operator to interact with and control endoscope valves. Many embodiments are directed to mechanisms and techniques for translating interface input motion into valve control motions. In one or more embodiments, the valve sets and / or valve interface mechanisms may be disposable.

A floor cleaning machine is provided, comprising a floor head (12) to which a support plane (28) for a floor (18) to be cleaned is assigned, a first disc holder (48) and a first cleaning tool (56), wherein the first disc holder (48) is arranged on the floor head (12) and holds the first cleaning tool (56) and is driven to rotate about a first axis of rotation (52) during operation of the floor cleaning machine, a second disc holder (50) and a second cleaning tool (58), wherein the second disc holder (50) is arranged on the floor head (12) and holds the second cleaning tool (58) and is driven to rotate about a second axis of rotation (54) during operation of the floor cleaning machine, wherein the first axis of rotation (52) of the first disc holder (48) and the second axis of rotation (54) of the second disc holder (50) are each oriented transversely to the support plane (28), a holding rod device (14),which is movably connected to the floor head (12) via a joint device (16), a blower device (100) which generates a suction flow during operation of the floor cleaning machine, and a dirty fluid tank device (104) for receiving dirty fluid, wherein the blower device (100) is arranged on the floor head (12) and the dirty fluid tank device (104) is removably mounted on the floor head (12).

A lithotripsy device can include a lithotripter configured to deliver lithotripsy energy to tissue located at least partially within a body channel. The lithotripsy device can include a working passage positionable at least partially within the body channel, the working passage at least partially defining a suction opening. The lithotripsy device can include a suction device connectable to the working passage upstream of the suction opening and configured to generate a suction flow to motivate movement of the tissue or portions thereof toward the suction opening. The lithotripsy device can include a controller in communication with the lithotripter and with the suction device, where the controller can be configured to operate the suction device to generate the suction flow at a suction energy configured to offset the lithotripsy energy to reduce or eliminate retropulsion of the tissue when the lithotripsy energy is delivered to the tissue.

A cleaner system includes: a cleaner; a cleaner station; and an imaginary plane including an imaginary suction flow path through line penetrating a suction flow path in a longitudinal direction and an imaginary suction motor axis defined by extending a rotation axis of a suction motor, in which when the cleaner is coupled to the cleaner station, the plane penetrates at least a part of the cleaner station, such that a center of gravity of the cleaner is disposed to pass through a space for maintaining balance of the station, and as a result, it is possible to stably support the cleaner and the station while preventing the cleaner and the station from falling down.

A cleaner system includes: a cleaner; a cleaner station; and an imaginary plane including an imaginary suction flow path through line penetrating a suction flow path in a longitudinal direction and an imaginary suction motor axis defined by extending a rotation axis of a suction motor, in which when the cleaner is coupled to the cleaner station, the plane penetrates at least a part of the cleaner station, such that a center of gravity of the cleaner is disposed to pass through a space for maintaining balance of the station, and as a result, it is possible to stably support the cleaner and the station while preventing the cleaner and the station from falling down.

Systems and methods of in situ pressure control at an anatomical environment during a procedure are disclosed. An exemplary irrigation and suction system comprises a user input configured to receive from a user a desired pressure to be applied to the anatomical environment, or a desired flow condition corresponding to the desired pressure. The system comprises a pressure sensor to sense a pressure at or near the anatomical environment, and a control module to adjust one or more of an irrigation flow rate or a suction flow rate of at least one working channel of a medical device to maintain the pressure of the anatomical environment at substantially a level of the desired pressure, or to maintain the desired flow condition in the working channel during the procedure.

A nozzle for a cleaner includes a nozzle housing including a suction flow path through which air including dust flows and at least a portion of which extends in a front and rear direction. First and second rotation cleaning units are arranged on the lower side of the nozzle housing to be spaced apart from each other in a lateral direction. Each of the first and second rotation cleaning units includes a rotation plate adapted for attachment of a mop. A first driving device including a first driving motor drives the first rotation cleaning unit and a second driving device including a second driving motor drives the second rotation cleaning unit. A water tank mounted on the nozzle stores water to be supplied to the mop.

Systems and methods of in situ unclogging a working channel in a medical device during a procedure are disclosed. An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating a presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide respectively irrigation fluid or suction pressure to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of the anatomical environment at the anatomical site, or to maintain a desired flow condition in the working channel, during the procedure.

Systems and methods of in situ unclogging a working channel in a medical device during a procedure are disclosed. An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating a presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide respectively irrigation fluid or suction pressure to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of the anatomical environment at the anatomical site, or to maintain a desired flow condition in the working channel, during the procedure.

The utility model relates to the technical field of impeller flow passage self-adjusting gradually-changing flow direction centrifugal pumps, and discloses an impeller flow passage self-adjusting gradually-changing flow direction centrifugal pump body which comprises a bearing assembly, a main machine body, a speed measuring assembly, a driving assembly and a flow sucking assembly, the main machine body is installed above the bearing assembly, the speed measuring assembly is installed at the front end of the interior of the main machine body, and the driving assembly is installed at the front end of the interior of the main machine body. The driving assembly is installed at the rear end in the main machine body, and the flow suction assembly is installed in the middle in the main machine body. The speed measuring assembly is arranged, so that the running speed of the output end of the driving motor can be automatically adjusted according to actual working conditions according to the flow speed of water flow and matched work of the rear driving motor, and it is ensured that the pump always runs in a high-efficiency area; the driving assembly and the flow suction assembly are arranged, the suction condition of the pump can be effectively improved, and the critical cavitation allowance of the pump is reduced by optimizing the flow channel design and the inlet throat area, so that the cavitation phenomenon is reduced, and the cavitation resistance of the pump is improved.

The invention belongs to the technical field of air inlet channel wind tunnel tests, and particularly relates to a supersonic air inlet channel wind tunnel test model and a related parameter calculation method thereof, a simulation machine body and an air inlet channel installed on the simulation machine body. A center cone is installed at an inlet of the air inlet channel and comprises a cone body at the front end and a straight pipe at the rear section, a hollow channel is formed in the straight pipe, a drainage groove for guiding airflow into the hollow channel is formed in the connecting position of the straight pipe and the cone body, the tail of the airflow channel is connected with a drainage pipeline, and a drainage flow measuring rake and a drainage flow control valve are installed in the drainage pipeline. An air inlet channel outlet total pressure measuring rake and a suction pipeline are installed at an air inlet channel outlet, a suction flow control valve is installed in the suction pipeline, and the flow of the air inlet channel is controlled through the suction flow control valve in the suction pipeline. And the air inlet channel aerodynamic performance such as the total pressure recovery coefficient and the distortion index of the air inlet channel under the matching of different air inlet flow rates and various discharge flow rates is obtained.

The invention relates to the technical field of fracturing construction, in particular to a sand mixing and liquid supplying system, a sand mixing and liquid supplying control method and a sand mixing pry. The sand mixing and liquid supplying system comprises a water tank, a suction pump, a suction valve, a sand mixing tank, a discharge pump and a discharge valve which are connected in sequence; the controller is electrically connected with the suction pump, the suction valve, the discharge pump, the discharge valve and the fracturing sand supply device. In the fracturing construction process, the controller adjusts the suction flow of the suction pump, the opening degree of the suction valve, the discharge flow of the discharge pump and the supply flow of the fracturing sand supply device according to the discharge flow of the discharge port of the discharge valve, and various water tanks and working conditions are automatically adapted through intelligent control of the controller; the opening degree of the suction valve is automatically adjusted according to different discharge flows of the discharge pump, the rotating speed of the suction pump is automatically adjusted through a control algorithm, the liquid level of the mixing tank is stably controlled, intelligent control over the liquid level and discharge pressure of the mixing tank is achieved, manual control is completely replaced, and equipment automation is achieved.

The disclosure generally relates to a mattress thermal management system, for example a mattress cooling and / or heating system and in particular incorporating an airflow spacer and / or a suction- and / or discharge-based cooling and / or heating system. Deck-mounted fans beneath a mattress operate in various embodiments to induce a uniform suction flow, a uniform discharge flow, and / or a combined suction / discharge (circulating) flow that enhances the cooling and / or heating rate of the mattress. The mattress thermal management system can be incorporated into a conventional mattress / bed system or into an adjustable bed system. Further, the mattress thermal management system including an airflow spacer can be incorporated into a cover for a conventional mattress foundation or adjustable bed foundation. In another aspect, the disclosure relates to a remote control that controls an adjustable bed and is configured with a children's safety lock feature.

The present disclosure relates to a cleaner station for suctioning dust stored in a dust bin of a cleaner to an inside thereof and the cleaner station according to one embodiment of the present disclosure may include a suction flow path which is connected to the dust bin and through which air including dust flows by a suction operation of a dust collection motor, a chamber housing disposed under the suction flow path and having an accommodation space provided therein, and a dust chamber configured to separately store dust suctioned from the cleaner and detachably coupled to the chamber housing, wherein the dust chamber may be inserted into the chamber housing in a first direction and withdrawn in a second direction that is a direction opposite to the first direction, and a coupling member having a shape that is coupled by being fitted in a sliding manner may be provided on an inner surface of the chamber housing and an outer surface of the dust chamber.

The invention discloses a combined debridement nursing device for an operating room, and relates to the technical field of debridement devices, the combined debridement nursing device comprises a transparent cover, and a suction head arranged at the end part of the transparent cover; the flushing pipes are oppositely arranged on the two sides of the suction head; the pressing block is used for pushing the suction head; the locking piece is fixedly arranged in the transparent cover and is provided with a high-position groove and a low-position groove which are oppositely arranged and are used for limiting the extension length of the suction head; and a gap between the plug block and the suction head is a suction channel. According to the combined debridement nursing device for the operating room, an operator can hold the transparent cover by one hand and adjust the pressing block by fingers, so that the width of a suction channel is adjusted, the suction flow is changed, timely adjustment is achieved according to the equivalent amount of field percolate plasma and pus, flushing and suction actions can be completed through one-hand operation, and the operation efficiency is improved. And the damaged surface is cleaned by combining the cavitation effect of the ultrasonic generator, and the sucked waste liquid is oscillated.

The present invention relates to a hard surface cleaning device. The hard surface cleaning device includes: a suction assembly configured to form a suction flow, the suction assembly including a suction blade and an electric motor for driving the suction blade; a suction nozzle in fluid communication with the suction assembly and configured to suck a liquid-air mixture from a hard surface; a flow path between the suction nozzle and the suction assembly; and a liquid storage tank configured to contain separated liquid. The flow path passes through the liquid storage tank and includes a separating component configured to separate liquid from the liquid-air mixture, the separating component extending into the liquid storage tank. The flow path further includes a receiving chamber between the suction nozzle and the separating component, the receiving chamber being independent of a shell of the hard surface cleaning device.

A suction device having a dirt collection container, a filter and a suction motor, wherein a suction flow is generated by the suction motor, the suction flow flowing from the dirt collection container through the filter in the direction of the suction motor. The suction device is designed to carry out dedusting of the filter while the suction mode of the suction device is in progress, by a backflushing flow R being generated from a clean side of the filter in the direction of a dirty side of the filter. The suction device includes a throttle valve provided on a dirty side of the filter to throttle the suction flow S such that the backflushing flow R is intensified. A method for dedusting a filter, filter dedusting being carried out while the suction mode of the suction device is in progress, by a backflushing flow being generated from a clean side of the filter in the direction of a dirty side of the filter, with throttling of the suction flow by a throttle valve leading to intensification of the backflushing flow.

The pipe network pump station desilting robot of the double-flow-channel suction pump structure comprises a robot shell body, a mounting support is fixedly mounted at the bottom of the robot shell body, a variable-frequency speed regulator is fixedly mounted on the outer side of the mounting support, crawler wheels are arranged on the inner side of the variable-frequency speed regulator, and the crawler wheels are fixedly mounted on the outer side of the mounting support. A double-flow-channel suction pump assembly is arranged on the outer side of the robot shell body, and a self-adaptive adjusting assembly is arranged on the outer side of the robot shell body. According to the pipe network pump station dredging robot of the double-flow-channel suction pump structure, by arranging the double-flow-channel suction pump assembly, a strong negative pressure suction environment can be formed, the sludge adhesion amount can be reduced, efficiency reduction caused by reduction of the cross section of the flow channel is avoided, the negative pressure strength of the main suction flow channel is supplemented, the air suction phenomenon is avoided, the self-adaptive adjusting assembly is arranged, and a pressure sensor monitors the main suction flow channel in real time; closed-loop control of blocking early warning, active intervention and risk elimination is achieved, a visual monitoring assembly is arranged, the equipment fault maintenance frequency is reduced, and the operation efficiency is improved.

The invention provides a circulating cleaning mechanism, a cleaning method and a flow cytometer, the circulating cleaning mechanism comprises a sleeve structure, a washing assembly and a washing liquid flow path, the sleeve structure comprises an openable sleeve part, and when the sleeve part is closed, a cleaning cavity which sleeves the outer side of a sampling needle and is provided with an opening at the top is formed; the flushing assembly comprises a pitching torsion mechanism and spray heads, the pitching torsion mechanism is mounted on the sleeve part, a movable end of the pitching torsion mechanism is connected with a plurality of spray heads which are circumferentially arranged along the axis of the sampling needle, and the spray heads are driven to perform pitching adjustment and torsion adjustment. According to the circulating cleaning mechanism provided by the invention, the sleeve structure is folded to the outer side of the sampling needle, and the washing assembly, the sampling needle and an original suction flow path of the flow cytometer are matched in the cleaning cavity, so that the outer wall and the inner wall of the sampling needle can be cleaned at the same time, and additional manual operation is not needed; in the cleaning process, pitching washing and rotational flow washing can be formed.

Systems and methods of in situ pressure control at an anatomical environment during a procedure are disclosed. An exemplary irrigation and suction system comprises a user input configured to receive from a user a desired pressure to be applied to the anatomical environment, or a desired flow condition corresponding to the desired pressure. The system comprises a pressure sensor to sense a pressure at or near the anatomical environment, and a control module to adjust one or more of an irrigation flow rate or a suction flow rate of at least one working channel of a medical device to maintain the pressure of the anatomical environment at substantially a level of the desired pressure, or to maintain the desired flow condition in the working channel during the procedure.

The invention discloses a compressor control management system based on the Internet of Things, and relates to the technical field of industrial automation and intelligent control. The compressor control management system based on the Internet of Things comprises a multi-dimensional data acquisition module which acquires multi-dimensional data and historical data of a compressor in real time through an Internet of Things technology multi-dimensional sensor. The suction valve model building unit builds the relation between the suction valve opening degree and the compressor load, energy efficiency and suction flow based on the long short-term memory network, and the exhaust valve model building unit builds the relation between the exhaust valve opening degree and the exhaust pressure, flow and compressor energy efficiency based on support vector regression. The control module dynamically adjusts the opening degree of an air suction valve through a particle swarm optimization algorithm, adjusts the opening degree of an exhaust valve through a fuzzy control algorithm, and optimizes the energy efficiency and stability of the compressor. Automatic adjustment of the opening degree of the compressor is achieved, the energy efficiency is improved, the energy consumption is reduced, and the automation level and the self-adaptive capacity of the system are enhanced.

A suction device for a releasable connection to a hand-held power tool, in particular to a hammer drill, includes a housing with a drive unit arranged in the housing for generating a suction flow, and at least one locking unit for a mechanical coupling with the hand-held power tool. The coupling includes at least one locking element for direct locking with the hand-held power tool and at least one actuating element used to release the lock of the at least one locking element. The actuating element and / or the locking element are arranged at least partially adjacent the drive unit.

The invention relates to the technical field of energy-saving refrigeration, in particular to an energy-saving and environment-friendly carbon dioxide refrigeration system and method, and the system comprises a state analysis module, an energy efficiency analysis module, a compression ratio calculation module, a risk judgment module and an adjustment optimization module. According to the method, the system fluctuation trend is captured by analyzing the outlet pressure of the evaporator and the outlet pressure of the condenser and combining the operation state vectors generated by the suction flow and the exhaust flow of the compressor, the fluctuation trend is associated with the energy efficiency ratio change of the compressor, and dynamic energy efficiency fluctuation is provided; the compression ratio is continuously monitored, the air flow and the opening degree of an expansion valve are adjusted, stable operation of the system is ensured, the optimal energy efficiency is achieved, compression ratio adjustment is optimized in real time by analyzing fluctuation of the compression ratio and deviation between the fluctuation and an adjusting interval, the system is adjusted according to real-time data through a dynamic adjusting mechanism, energy efficiency fluctuation is restrained, and flexibility and stability are improved. Energy waste is reduced, and environmental changes are responded, and automatic adjustment is performed to maximize energy utilization.

The invention discloses a pet washing nozzle and a washing and caring system, and relates to the technical field of pet washing and caring. The pet washing nozzle comprises a nozzle body and a washing functional cover, a water inlet flow channel, an air inlet flow channel and an air suction flow channel which are mutually independent are arranged in the nozzle body, and interfaces of the water inlet flow channel, the air inlet flow channel and the air suction flow channel are converged at the joint end of the nozzle body; the washing functional cover is arranged at the end, away from the connector end, of the nozzle body, an air suction part and a comb tooth part are arranged on the washing functional cover, the air suction part is arranged around the comb tooth part, the air suction part is provided with at least one air suction opening communicated with the air suction flow channel, and the comb tooth part comprises a plurality of water spraying comb teeth and a plurality of air spraying comb teeth. Water spraying holes communicated with the water inlet flow channel are formed in the water spraying comb teeth, and air spraying holes communicated with the air inlet flow channel are formed in the air spraying comb teeth. According to the pet washing spray head, water is saved during washing, the washing time is shortened, the drying time is saved, and the drying difficulty is reduced.

The invention discloses pull-type mining equipment based on circulating wall-attached jet flow and a mining method. The pull-type mining equipment comprises an ore box, a balance shell is installed on the outer side of the ore box, a water pump is installed in the ore box, the ore box is connected with an ore conveying pipeline, a suction inlet of the water pump communicates with the ore conveying pipeline through the ore box, and the tail end of the ore conveying pipeline is connected with a suction ore collecting head; a water pump jet outlet is connected with a pipeline system through a fluid director, the pipeline system is connected with a plurality of circulating pipelines through a flow divider, and the tail ends of the circulating pipelines are all connected with wall-attached jet nozzles. When the water pump works, the suction ore collection head collects bottom ore grains through the flat-opening dustpan-shaped structure; the wall-attached jet flow nozzle forms a low-pressure area at the bottom of the arc-shaped convex curved wall and is coupled with suction flow of the suction ore collection head, so that ore grains are more easily stripped, and the collection rate of the ore grains is improved; by means of the innovative flow field design, the collection efficiency of submarine minerals is effectively improved, and meanwhile energy consumption in the operation process is reduced.