300 results about "Aspirator" patented technology

The present invention provides an apparatus and method for efficiently dislodging and extracting at least a portion of solid materials from one or more reactor tubes of shell-and-tube reactors without damage to at least a portion of the solid materials which would otherwise render the solid materials unsuitable for re-use. The apparatus has at least one rod, a rotator assembly for rotating the rod, and a transmission assembly for applying an axially-directed force to insert the rod into a corresponding reactor tube and dislodging solid materials therein. The rod is also in fluid communication with an aspirator for extraction of dislodged solid materials. When the apparatus has more than one rod, they are arranged in a configuration matching the pattern of the reactor tubes and each rod is in axial alignment with a corresponding reactor tube. The method involves the steps of inserting one or more rods into corresponding reactor tubes, dislodging at least a portion of the solid materials, while minimizing damage to the solid materials or the tubes by rotating and applying an axially directed force to the rods as they contact the solid materials. The dislodged solid materials are then extracted from the reactor tubes. The method may further involve tracking and communicating the completed steps for each reactor tube by placing and replacing indicators on the reactor tubes, thereby enabling an operator to determine which step to perform next.

The invention discloses a multifunctional spraying robot. The multifunctional spraying robot comprises a bottom plate which is arranged on a slide base, wherein a threaded slide block which is fixedly connected with the bottom plate is arranged in the slide base; the threaded slide block is connected on a threaded rod; a fixed mechanical arm is arranged at the inclined upper side of a base; the fixed mechanical arm is hinged with a movable mechanical arm; the movable mechanical arm is hinged with a first rotary mechanical arm; the fixed mechanical arm is hinged with an auxiliary small arm; the auxiliary small arm is hinged with a second auxiliary small arm; the second auxiliary small arm is hinged with the first rotary mechanical arm; the front end of the first rotary mechanical arm is rotatably connected with a rotary mechanical arm; the front end of the rotary mechanical arm is hinged with a second rotary mechanical arm; the second rotary mechanical arm is connected with a spraying bracket through a rotary table; the front end of the spraying bracket is connected with a spray head; the front end of the spraying bracket is equipped with an infrared ray scanner and a camera; a gas collecting cover is connected with an aerosol recycling tank; the aerosol recycling tank is connected with a micro aspirator pump; and the camera and the infrared ray scanner are connected with a control module. The multifunctional spraying robot is stable in structure, is stable in operation, and realizes automatic spraying and processing, and free travelling.

The invention discloses a structure-compact-type reciprocating aspirator and breast pump. The structure-compact-type reciprocating aspirator is applied to the field needing small-displacement vacuum aspiration, a power motor unit used for providing original moment and an air cylinder driving unit used for converting power into internal capacity deformation to output suction force are parallelly arranged on a same side face of a gear transmission unit used for performing speed reduction and reversing to the original moment and connected with the same, the gear transmission unit and a synchronous belt transmission mechanism are integrally designed in a same gearbox, large suction force and high efficiency functions are realized while the volume is reduced by a half compared with same level in the prior art, and the objective of portability is realized; and the structure-compact-type reciprocating aspirator is firm and reliable in structure, and the design of multiple damping and noise reducing is applied to realize muting effect.

The invention discloses a nasal cavity channel diameter detection tube and relates to the field of medical consumables. The detection tube is provided with a detection tube body, wherein the front end of the detection tube body is provided with a guide part which is small in front and big in back, and the outer side of the detection tube body is provided with a length mark; the upper portion and the lower portion of the tube wall of the guide part are provided with through holes, a measuring air bag is arranged outside the portion, behind the guide part, of the detection tube body and connected with an inflator through an inflatable pipe via a one-way valve, and the inflator is provided with a scale which corresponds to the diameter of the measuring air bag and reflects the air injection amount; the detection tube body is connected with a breathing machine or an aspirator through an inlet and can provide an oxygen supply channel or suck secreta in the nasal cavity. The detection tube can achieve measurement of the passing diameter of the nasal cavity channel to provide a basis for choosing a proper cannula or catheter for a nasal trachea cannula and avoid aspiration by mistake caused by nasal mucosa damage and bleeding when an improper cannula or catheter is adopted.

The invention discloses a liftable floor brush for dust collectors, which comprises a suction nozzle chassis provided with a floor brush chamber, a suction nozzle upper cover combined with the suction nozzle chassis, a host machine seat movably connected with the suction nozzle chassis, as well as a height regulating device arranged on the host machine seat. The floor brush is characterized in that the height regulating device comprises a swing body which can swing around a fixed shaft in the vertical direction; mutually matched structures are arranged on the swing body and the suction nozzle chassis; the mutually matched structures at least have two working positions which can be changed by means of the swing of the swing body around the fixed shaft; in a first working position, the suction nozzle chassis is positioned on an initial position; and in a second working position, the suction nozzle chassis drops or rises by one height relative to the initial position in the vertical direction. The floor brush can allow people to apply force in the vertical direction to the height regulating device, for example, the height regulation of the floor brush is carried out through a treading mode, thereby saving time and labor. Moreover, the floor brush has the advantages of simple structure and convenient operation, and is suitable to be combined with various vertical/horizontal dust collectors and popularized.

The invention relates to a smoke detection unit (10) with a housing, especially used on ships to detect smoke in sample gas. The unit comprises a smoke detection device integrated in the housing, at least an inlet for the sample gas, devices (5,7) connected with an aspirator (6) used for the sample gas, and/or the aspirator for the sample gas, and a signal output end (2). The smoke detection unit is simple in installation, small in space occupation, and can be preferably integrated in a shipborne monitoring system. The smoke detection unit has an additional singal connection device, used to electrically connect with at least a detection device arranged in a remote manner and preferably electrically connect with data lines of other smoke detection devices, and at least a communication and analysis unit used to communicate with the remote detection device through a signal connection device, or the smoke detection device is provided with a dust filter and/or a sample room is provided with a device used for air flow monitoring.

Certain example embodiments of this invention relate to techniques for edge deleting coatings supported by coated articles while a temporary protective coating is applied thereto. More particularly, a stationary, enlarged, and higher powered aspirator is connected to flexible tubing, which itself has an enlarged diameter, that has a nozzle located proximate to a grinding wheel on an edge deletion unit is provided in connection with an edge deletion table. Advantageously, the edge deletion table and aspirator of certain example embodiments are capable of performing edge deletion and removal of a temporary protective coating substantially simultaneously (e.g., from a common area of interest), during which process the debris produced when edge deletion is performed is controlled and removed from the substrate of interest.

A VMD system and method uses an aspirator to generate a vacuum pressure for drawing permeate from a membrane module. The aspirator generates the vacuum pressure by receiving and passing a circulating liquid and combines the permeate with the circulating liquid such that the permeate condensates in the circulating liquid. Using an aspirator (e.g., instead of a vacuum pump) allows a more efficient and cost-effective operation of the VMD system and method, particularly in a desalination application. A VMD system and method using an aspirator may be used in desalination and other applications including, without limitation, environmental cleanup (e.g., removal of volatile organic chemicals from water) and food and medical applications.

The invention discloses a method for controlling a waste heat recovery system of a kiln. A quench section of a roller kiln of the system is provided with a quench fan and a heat exchange box body internally provided with a heat exchanger, is communicated with a spray drying tower through a first pipeline, and is partitioned from a quench channel; a tail cooling section is provided with a waste heat fan and an aspirator, and is communicated with the heat exchange box body through a second pipeline, and the second pipeline is provided with a discharge flue; and the waste heat recovery system also comprises a first control valve, a second control valve, a third control valve and a fourth control valve which are arranged on the discharge flue, the second pipeline, the first pipeline and a pipeline of a hot air furnace of the spray drying tower respectively. The method comprises the steps of: acquiring the temperature of tail cooling air of the tail cooling section of the roller kiln; and judging whether the temperature of the tail cooling air is higher than the preset kiln temperature, outputting a first control valve closing signal as well as second control valve, third control valve and fourth control valve opening signals if the temperature of the tail cooling air is higher than the preset kiln temperature; and outputting a first control valve opening signal as well as second control valve, third control valve and fourth control valve closing signals if the temperature of the tail cooling air is not higher than the preset kiln temperature. The invention also discloses a device for controlling the waste heat recovery system of the kiln. The method and the device can reduce operation strength and difficulty, improve control accuracy, and prevent the misoperation.

An apparatus for removing fluids from a vacuum flow path comprises a body defining a containment chamber having an inlet port connectable to a vacuum hose and a barrier wall within the containment chamber isolating a transfer chamber within the containment chamber. The containment chamber has an outlet port connectable to a vacuum hose. The transfer port has a suction port fluidicly connecting the transfer chamber and the containment chamber. The apparatus further comprises a float positioned below the transfer port and adapted to be raised into sealing contact with the transfer port as a fluid level in the containment chamber rises.

The invention provides a system and a method for advanced geological prediction of TBM-carried radioactive radon. The radon concentration testing module mounted on the TBM comprises an air radon concentration testing unit and a water radon testing unit; the air radon concentration testing unit comprises an air collecting bag and a first drying pipe which are connected in sequence, a filter membrane is arranged between the air collecting bag and the first drying pipe, an aspirator pump is arranged at one end of the first drying pipe, and the other end of the first drying pipe is communicated toa continuous radon measuring instrument through a pipeline; the water radon testing unit comprises a diffusion bottle; a water taking device is arranged in the diffusion bottle, the diffusion bottleis connected with one end of a second drying pipe, and the other end of the second drying pipe is connected to the continuous radon measuring instrument through a pipeline; the continuous radon measuring instrument measures the radon content in air and water, transmits the radon content to the data processing and analyzing module so as to analyze and calculate the radon concentration, thus monitoring the radon concentration in the TBM tunnel for a long time, and providing a radon concentration curve graph and an abnormal lower limit in real time.

An improved negative-pressure aspirator comprises a liquid storage bottle, a catheter and a negative-pressure machine. The liquid storage bottle is provided with a bottle plug and is connected with the negative-pressure machine through the catheter on the bottle plug, the lower end of the liquid storage bottle is provided with a liquid discharging pipe, the end, close to the liquid storage bottle, of the liquid discharging pipe is provided with a left-right push-type switch, the bottle plug is further provided with a cleaning pipe and a sucking pipe, the sealed end of the cleaning pipe penetrates through the bottle plug and is arranged in the liquid storage bottle, cleaning holes are distributed in the pipe wall of the sealed end of the cleaning pipe, a cleaning valve is arranged at the other end of the cleaning pipe, a suction port of the sucking pipe is formed at the end, connected with a stomach pipe, of the sucking pipe, and the sucking pipe is provided with a sucking valve. The bottom of the liquid storage bottle of the negative-pressure aspirator is provided with the liquid discharging pipe, the stomach pipe does not need to be frequently pulled open, gastric juice can be poured in a daily drainage mode, the pollution possibility is reduced, work is facilitated, the bottle plug of the liquid storage bottle is provided with the cleaning pipe, cleaning work can be carried out without the need of taking down the liquid storage bottle from the negative-pressure machine, and the work load of nurses is greatly reduced.

The invention describes a magnetic flow switch (1) comprising: a body (2) defining a chamber (20) for the passage of a fluid flow; an exciter (4) arranged in the shuttle body, The shuttle body is mounted to slide from an initial front position to a final rear position in the chamber of the main body; a reed switch (6) is provided on the main body (2) of the flow switch to detect the movement by the exciter ( 4) The magnetic field generated by the displacement, and correspondingly sends a control signal to the electronic control board; and, at least one attracting magnet (7) is arranged at a position on the main body (2) of the flow switch, thereby generating a magnetic field capable of attracting the exciter The attractive magnetic field of (4) moves the shuttle body (3) to the initial front position.

The invention discloses a tracheal sputum aspirator for clinical medicine. The tracheal sputum aspirator comprises a fixed base, a negative pressure aspiration cylinder, a rubber piston, a connectinghose, an aspiration tube, an auxiliary moving structure and a flushing structure, the upper surface of the fixed base is fixedly connected with a supporting frame plate, the supporting frame plate isfixedly connected with the negative pressure aspiration cylinder, the rubber piston is slidably connected into an inner cavity of the negative pressure suction cylinder, the auxiliary moving structureis fixedly mounted on the surface of the negative pressure suction cylinder, and the auxiliary moving structure comprises a micro servo motor, a rectangular sliding groove shell, a sliding block, a threaded rod, a guide connecting plate, a fixing plate and an L-shaped connecting rod. The tracheal sputum aspirator is reasonable in structure, convenient to use and capable of assisting a worker in sputum suction operation through the auxiliary moving structure, the workload of the worker can be simplified, sputum suction is facilitated, the tracheal sputum aspirator is suitable for popularization, sputum blockages in a sputum suction pipeline can be flushed through the flushing structure, and the anti-blocking and dredging effects are achieved.

The invention relates to a portable medical instrument, in particular to a medical sputum aspirator. The traditional sputum aspirator employs a suction tube used with a negative pressure system; a body of the traditional sputum aspirator is complex in structure and heavy; the traditional sputum aspirator is very impractical for preparation in response to emergencies in both emergency treatment and families or schools. The medical sputum aspirator comprises a suction tube and a pressure bulb connected to the tail end of the suction tube; the front end of the suction tube is blunt; the sidewall of the suction tube is provided with a plurality of through holes; two half hoses are arranged on the suction tube and are provided with creases; when the half hoses are doubled at the angle not smaller than 90 degrees, the half hoses are closed; when straightened, the half hoses are open; a branch tube is disposed between the half hoses and is connected with a sputum storage device; an exhaust tube is disposed at the connection of the tail end of the suction tube and the pressure bulb; a one-way valve is disposed on the exhaust tube. The medical sputum aspirator is simple in structure and convenient to use, allows emergencies to be conveniently coped with, and is widely applicable to use in outdoor emergency treatment and emergencies in families and schools.

The invention discloses a sputum aspirator suitable for hospital nursing, and relates to the technical field of medical assistance, the sputum aspirator comprises a nursing box body and further comprises a sputum aspiration assembly, the sputum aspiration assembly comprises a sputum aspiration cylinder and a negative pressure mechanism which are arranged on one side of the nursing box body, one end of the sputum aspiration cylinder is connected with a sputum aspiration end through a sputum aspiration pipe, and the other end of the sputum aspiration cylinder is connected with a sputum aspiration cavity; the other end of the sputum suction cylinder is connected with the negative pressure mechanism through the negative pressure pipe, the negative pressure mechanism is used for generating negative pressure in the sputum suction cylinder through the negative pressure pipe, the negative pressure mechanism generates vacuum negative pressure in the sputum suction cylinder through the negative pressure pipe, and under the action of the vacuum negative pressure in the sputum suction cylinder, the sputum suction cylinder can suck the sputum. The sputum suction end sucks sputum clamped in the mouth of a patient into the sputum suction cylinder through the sputum suction pipe, then rapid sputum suction operation is achieved, the flushing mechanism conveys external cleaning liquid into the sputum suction cylinder and flushes the interior of the sputum suction cylinder, after flushing is completed, the liquid suction mechanism pumps out waste liquid in the sputum suction cylinder, and then automatic cleaning treatment on the sputum suction cylinder is completed.

The invention provides an equivalent aspirator. The equivalent aspirator comprises an oxygen source, a throttle valve, a valve set, a flexible air bag, a rigid container, an inflator pump, a mask assembly and a system controller. The flexible air bag is installed in the rigid container, high-pressure oxygen output by the oxygen source can inflate the flexible air bag at a fixed speed through the throttling valve and an electromagnetic valve, and the system controller accurately inflates a certain amount of oxygen into the flexible air bag by controlling the inflation time; the inflator pump enables air pressure in the rigid container to be higher than one atmospheric pressure; and the mask assembly comprises a mask body and a mask synchronous switch. Every time before CT scanning, a patient can inhale the same amount of air by using the equivalent aspirator, so that respiratory errors are reduced or eliminated, and the equivalent aspirator has important significance in interventional therapy or needle biopsy by using CT guidance.