49results about How to "Inhibit reflux" patented technology

The invention discloses a double-jet powder feeding device, which belongs to the technical field of water treatment, and comprises a gas-liquid separation buffer tank for performing gas-liquid separation on mixed slurry, and an exhaust port is formed in the gas-liquid separation buffer tank; the first jet mixing mechanism is used for preliminarily mixing powder and the first water flow; the water supply mechanism is used for mixing water; one end of the second mixing piece is connected with a water outlet of the gas-liquid separation buffer tank; the first jet mixing mechanism comprises a first mixing piece connected with the gas-liquid separation buffer tank at one end and a feeding assembly used for feeding powder to the first mixing piece, and the other end of the first mixing piece and the other end of the second mixing piece are both connected with a water outlet of the water supply mechanism; and the second mixing piece can be used for secondarily mixing the buffered and separated liquid-solid mixed liquid and the second water flow and pressurizing and throwing out the liquid-solid mixed liquid and the second water flow. The device has the effects of effectively solving gas interference, preventing blockage and reflux, and realizing stable, efficient and continuous feeding.

The utility model discloses a stainless steel water tank which comprises a water tank main body, and first ribbing steps used for placing shelf kitchen ware are arranged below the front side wall and the rear side wall of the water tank main body; the shelf chopping board can be transversely placed on the first ribbing step in a sliding manner; the bottom of the water tank main body is inclined towards one transverse side, and the side is provided with a dirt collecting groove which is sunken downwards; the sewage collecting groove is provided with a water outlet; when the shelf chopping board moves towards one side of the dirt collecting groove, the shelf chopping board can completely shield the upper part of the dirt collecting groove; when the shelf chopping board groove moves away from one side of the dirt collecting groove, the shelf chopping board, the bottom of the water tank main body and the dirt collecting groove can form a three-layer stepped structure. According to the utility model, the eccentric layout of the water outlet and the dirt collecting groove is combined with the stepped flow guide surface to form a dynamic visual drainage path, and a continuous water film effect is generated when water flows through the hierarchical structure, so that efficient dirt discharge and ornamental value are achieved, and the dual requirements of modern kitchens on practicability and spatial aesthetics are met.

This utility model relates to the field of urine collection bag technology and discloses a urine collection bag for bladder irrigation in urological patients. It includes a lifting arm and a urine collection bag. A hook is fixedly connected to the middle of the upper surface of the lifting arm, and a warning light is installed in the middle of one side of the lifting arm. A power supply is installed inside the lifting arm. Slides are formed on both sides of the lifting arm. A conductive block is fixedly connected to one side of the bottom wall of the slide, and a spring is fixedly connected to the other side of the bottom wall of the slide. An inlet pipe is fixedly connected to one side of the upper surface of the urine collection bag, and a drain pipe is fixedly connected to the middle of the lower surface of the urine collection bag. This urine collection bag for bladder irrigation, through the design of an observation window and built-in scale lines, reduces the interference of bag deformation and light refraction on readings. Nursing staff can intuitively and accurately read the volume of irrigation waste fluid, ensuring accurate recording of intake and output balance, and providing reliable data support for assessing the patient's bladder irrigation effect, bleeding, and renal function recovery.

The utility model discloses a kind of duplex ball valves with non-return function, belong to ball valve technical field, including duplex ball valve body, one end of the duplex ball valve body is equipped with non-return pipe by bolt, the outside of the non-return pipe is provided with protection mechanism, the outside of the non-return pipe is provided with moving groove, the inside of the non-return pipe is provided with expansion tank, the inner chamber of the non-return pipe is provided with rear conical plug, the inner chamber of the moving groove is slidably connected with movable ring. In the utility model, when the inside of non-return pipe flows fluid, fluid pushes conical plug post and the inner wall of rear conical plug separate to make fluid flow, when the inside of non-return pipe does not flow fluid, the elastic force of spring is used to drive conical plug post reset, so that conical plug post is plugged to the inner chamber of non-return pipe, avoid fluid reflux, in addition, spring is supported by first fixed column and second fixed column and is packaged, spring can be replaced, and practicality is good.

The application discloses a gas-water diversion anti-siphon device, which comprises a water storage tank body, a water inlet pipe joint, a water outlet pressure-limiting backflow valve assembly, a pressure-loss air inlet valve assembly and a pressure-loss water outlet valve assembly. The water inlet pipe joint is arranged at the upper half of the water storage tank body and is connected with a water supply pipe network. The water outlet pressure-limiting backflow valve assembly is arranged at the lower half of the water storage tank body and is connected with downstream water using appliances. The pressure-loss air inlet valve assembly and the pressure-loss water outlet valve assembly are arranged at the top end and the bottom end of the water storage tank body, respectively. When the water supply pipe network is shut down and negative pressure is generated, the pressure-loss air inlet valve assembly is opened to enable air to enter the water storage tank body and flow into the water supply pipe network through the water inlet pipe joint. Meanwhile, the pressure-loss water outlet valve assembly is opened to discharge the accumulated water in the water storage tank body. Meanwhile, the water outlet pressure-limiting backflow valve assembly is closed to prevent downstream water from flowing back into the water storage tank body.

This invention discloses a metal ion pollution sampling and detection device, specifically relating to the technical field of detection devices. It includes multiple sampling tubes, a sampling pump, sampling bottles, and an anti-backflow bottle. The bottom ends of the sampling pump, sampling bottles, and anti-backflow bottle are flush. The sampling pump is connected to the sampling bottle via the sampling tube, and the sampling bottle is connected to the anti-backflow bottle via the sampling tube. A connecting cavity adapter is fixedly installed at the end of the sampling tube furthest from the sampling pump. The key technical feature is that a check valve is fixedly connected between the sampling tubes. A sliding guide plate is slidably installed inside the check valve, and multiple sets of vertical rods are installed inside the check valve to interlock with the sliding guide plate. When airflow passes through the check valve, it causes the position of the sliding guide plate to change, thereby changing the connection or sealing state inside the check valve, thus achieving the purpose of diversion and preventing gas backflow.

The wearable waterproof fixing waistband comprises a fixing waistband body, the outer side of the fixing waistband body is fixedly connected with a mounting belt, the front side of the mounting belt is provided with a storage assembly, the storage assembly comprises a storage bag, and the two ends of the rear side of the storage bag are fixedly connected with connecting belts; the connecting belt penetrates through the mounting belt and then is adjustably connected with the mounting belt through a connecting piece, the upper end of the storage bag is fixedly connected with a feeding pipe used for being connected with a drainage pipe, the front side of the storage bag is provided with a zipper capable of being opened and closed, and the bottom end of the storage bag is fixedly connected with a liquid discharging pipe. Through the arrangement of the storage bag and the internal height adjusting mechanism, the drainage bag is completely stored in the bag, hung through the hook and clamped and fixed through the two sides of the clamping plate, a drainage tube is prevented from being shaken and pulled during movement, the height adjusting mechanism can adjust the height of the drainage bag according to different body positions such as standing, sitting postures and stooping of a patient, and it is ensured that the drainage bag is always lower than a drainage opening; the risk of drainage liquid backflow is avoided.

The utility model discloses an arc extinguish chamber structure of a high-voltage circuit breaker, which belongs to the technical field of high-voltage circuit breakers and comprises a static contact seat and a conductive seat, a moving contact is mounted in the conductive seat, a nozzle piece is arranged at the right end of the moving contact, a variable-diameter guide cylinder is mounted in the static contact seat, and a static arc contact extending into the variable-diameter guide cylinder is arranged at the right end of the static contact seat. The variable-diameter guide cylinder is sleeved with an inner cavity of the static contact seat, the outer diameter of the nozzle piece is matched with the small inner diameter of the variable-diameter guide cylinder, the variable-diameter guide cylinder plays a role in auxiliary guiding and backflow prevention for the nozzle piece, the nozzle piece is beneficial to airflow diffusion, and the small-diameter portion of the variable-diameter guide cylinder can effectively prevent airflow backflow. The variable-diameter guide cylinder gives consideration to centering of the arc extinguish chamber and air flow formation in the opening process of the arc extinguish chamber, ensures the breaking capacity, is simple and ingenious in structural design, effectively solves the problems of complex connection structure and low reliability caused by the split type design of the nozzle, and can effectively improve the assembly efficiency.

The application discloses a visual cleaning device for cleaning or medicine feeding of a human cavity such as a vagina or a rectum, which comprises a cleaning device shell, a cleaning assembly, a camera assembly and a flexible expansion assembly; the flexible expansion assembly comprises a plurality of flexible air bags arranged in a circumferential direction on a surface of an insertion end, and each flexible air bag is independently controlled by a control module, so that the flexible air bags are controllably contracted or expanded; on one hand, the flexible air bags in an expanded state are in flexible contact with an organ, so that the use comfort of the cleaning device is improved; on the other hand, the flexible air bags in a contracted state can form an avoiding space to avoid a wound surface; the camera assembly comprises a camera arranged at an end of the insertion end and is used for observing the inside of the cavity in real time. Through the cooperative design of the assemblies, the visual cleaning device realizes the functions of flexible expansion introduction of the cavity, visual accurate operation and selective wound surface avoiding, and mechanical damage to the human body is avoided, and the comfort of a patient is improved.

The utility model discloses a cold rolling mill entrance side plate face residual foreign matter cleaning device, including the support plate between the installation of coiled material and rolling mill, the support plate is located the downside of rolling mill entrance side strip, the upper surface of support plate near coiled material one end is installed with the guide roller, the upper surface of support plate near rolling mill one side is installed with the thickness gauge support, and support plate near the upside rotation of thickness gauge support part is provided with the air curtain board, the bottom of air curtain board is provided with the air outlet. The device adopts the air curtain board structure of rotatable, can prevent rolling oil reverse flow to the downside of thickness gauge to guarantee the accurate measurement of thickness gauge, can also clean the surface foreign matter such as aluminium powder, dust of the three circle plate face residual of incoming material coiled material, thereby improves the surface cleanliness and quality of finished strip, and the whole device mode switching is simple, and the adaptability is extremely strong, need not to increase the redundant equipment, and the occupied space is small, and the maintenance is convenient.

This invention discloses a concave cavity flame stabilizer structure, its fuel injection and cooling method, and an afterburner. The structure includes a symmetrical Tesla valve, a fluid oscillator, and shape memory alloy ribs. The Tesla valve is located at the front end of the evaporation chamber of the afterburner, utilizing its unidirectional flow resistance characteristics to suppress fuel backflow caused by pressure fluctuations and ensure stable fuel supply. The fluid oscillator replaces the traditional injection hole, converting the fuel-air mixture into a high-frequency, large-scale periodic swept jet injected into the concave cavity, improving atomization, evaporation, and mixing efficiency. The shape memory alloy ribs are located on the cold side of the bottom and rear wall of the concave cavity, automatically adjusting their shape according to changes in wall temperature to achieve dynamic matching between cooling intensity and heat load. This invention, through the system integration of fuel supply, combustion, and cooling, solves the problems of fuel backflow, low atomization efficiency, and poor adaptability of the cooling system under wide operating conditions in traditional concave cavity structures, significantly improving the combustion efficiency and thermal protection reliability of the afterburner.

A RAP asphalt mixture asphalt extraction device relates to the field of road engineering material testing technology, and is used to solve the problems of insufficient filtration accuracy, low filtration efficiency, cumbersome operation, and lack of flow monitoring in existing technologies. The device includes an integrated frame (1), on which a stirring extraction module (2) and a pressurized filtration module (3) are installed. The liquid outlet of the stirring extraction module (2) is connected to the liquid inlet of the pressurized filtration module (3) through a guide pipe (5). The pressurized filtration module (3) includes three industrial syringe assemblies connected in series. Each assembly contains filter plates with different filtration accuracies. The device also includes the connection and working cooperation between the propulsion assembly and the syringe plunger (301-1) of the industrial syringe assembly. Gradient filtration is achieved by sequentially passing through a three-stage filtration unit with millimeter-level filtration layer, micron-level filtration layer, and nano-level filtration layer. This device can realize integrated operation, gradient filtration purification, pressurized high-efficiency filtration, and real-time monitoring of liquid flow.

The invention relates to the technical field of coking wastewater treatment, in particular to a composite defluorination and desiliconization precipitation device for coking wastewater, comprising: a reaction tank for regulating the pH value of the internal coking wastewater; the water inlet assembly comprises a water inlet and a floating pipe which are arranged at the bottom of the reaction tank in a penetrating manner, the water inlet pushes the floating pipe to slide upwards when coking wastewater flows in, and the water inlet resets downwards and seals the water inlet when no coking wastewater flows in; the homogenizing wheel stirs and mixes the coking wastewater and a flocculating agent when the floating pipe floats upwards, and physically isolates the upper layer and the lower layer when the floating pipe slides downwards and resets; spraying of a flocculating agent and stirring of the homogenizing wheel are synchronously triggered during water feeding, so that wastewater is fully mixed with the agent, and the reaction efficiency is improved; when no water enters, the water inlet is automatically closed and the pesticide is stopped, so that waste is reduced and backflow is prevented; the blades are flattened to isolate upper and lower layers after water feeding is stopped, so that upper-layer liquid is prevented from being polluted by impurities during slag removal, and the secondary treatment effect is guaranteed.

The utility model relates to the technical field of centrifugal evaporation, and particularly discloses a low-temperature-based high-speed centrifugal evaporation device which comprises a shell, a motor is embedded in the surface of the shell, and a cavity is embedded in the surface of the shell; a containing cavity is formed in the cavity, an output shaft of the motor is connected with the bottom face of the containing cavity, a cover is rotationally installed on the surface of the shell, and a sealing cover is installed at the bottom of the cover. The shell is provided with a heating structure, and the heating structure is characterized in that a heating block is embedded in the shell, and a pipeline I is embedded in the surface of the cover. According to the low-temperature high-speed centrifugal evaporation device, the heating structure is arranged, the placing cavity is heated, then the reaction rate of a reagent is increased, the vacuum pump vacuumizes the interior of the placing cavity through the second pipeline, a negative pressure environment is formed in the placing cavity, the boiling point of the reagent is reduced, the evaporation process is further accelerated, the evaporation time is shortened, and the working efficiency is remarkably improved.

The application discloses a turbulent flow reduction multi-stage pretreatment filtering equipment and method for high-turbidity sewage, relates to the technical field of sewage treatment, and comprises a first filtering treatment device, a second filtering treatment device arranged below the first filtering treatment device, a pressurizing filtering device arranged in the second filtering treatment device, a turbulent flow reduction filtering device arranged below the second filtering treatment device, and a filtering treatment mechanism arranged in the turbulent flow reduction filtering device. The second filtering treatment device comprises a collecting box, the pressurizing filtering device is arranged below the collecting box in a counterposed mode, and a second sundry collecting box is fixedly arranged at the top of the pressurizing filtering device. The first filtering treatment device is used for primary filtration, the second filtering treatment device is used for secondary filtration, the pressurizing filtering device is used for pressurization, the turbulent flow reduction filtering device is used for re-filtration and turbulent flow reduction, and the sewage filtration effect is improved.

The invention discloses an oral mucositis prevention gargling device for a patient, and relates to the technical field of medical instruments, the oral mucositis prevention gargling device comprises a liquid storage unit composed of a first cylinder and a second cylinder; the liquid conveying pump is mounted at the inner bottom of the first cylinder body and is connected to the gargling spray head through a liquid conveying pipeline; wherein a sealing disc is arranged in the second cylinder body, and the sealing disc divides the interior of the second cylinder body into an upper functional chamber and a lower negative pressure chamber; the four-way pipe is mounted on a top plate of the second barrel; the negative pressure pump is mounted in the negative pressure cavity and connected to the first connector of the four-way pipe through a negative pressure pipeline; the partition plate is fixed to the top of the sealing disc and divides the functional cavity into a washing cavity on one side and a collecting cavity on the other side, through the designed backwashing device, backwashing can be conducted on a pipeline, accumulated impurities are removed, the pipeline is recovered to be smooth, the blocking risk is reduced, and the continuity of the treatment process is guaranteed.

This invention belongs to the field of iron and steel metallurgy technology, specifically relating to a staged combustion system and process for a gas boiler. The system includes a burner connected to the gas boiler, a combustion-supporting gas structure, and a combustion-supporting air structure. The burner includes a combustion stabilizing plate, located at the front end of the burner and connected to the gas boiler. The combustion stabilizing plate has three layers of staged ignition units evenly arranged around its center: an inner layer, a middle layer, and an outer layer. The middle layer ignition unit includes multiple externally mixed combustion nozzles, where combustion-supporting air and gas mix outside the combustion stabilizing plate. The outer layer ignition unit includes multiple internally mixed combustion nozzles, where combustion-supporting air and gas mix inside the combustion stabilizing plate. The combustion-supporting gas structure provides fuel to the burner, and the combustion-supporting air structure provides combustion-supporting air to the burner. This invention effectively achieves complete combustion of the gas, reduces nitrogen oxide production, and provides a stable flame, demonstrating good performance in terms of safety, environmental protection, and efficiency.

The invention discloses an aquatic feed processing waste gas treatment device coupled with spraying and catalytic ozonation, and belongs to the technical field of feed processing, the aquatic feed processing waste gas treatment device comprises at least two catalytic oxidation towers, the two catalytic oxidation towers are arranged in series along a waste gas conveying direction; the induced draft fan is arranged at the downstream of the last-stage catalytic oxidation tower; wherein a wet treatment area and a dry treatment area are sequentially arranged in the catalytic oxidation tower in the waste gas conveying direction; a spraying pipeline and a first ozone injection pipeline are arranged in the wet treatment area; and at least one group of catalytic oxidation components and a second ozone injection pipeline are fixedly arranged in the dry treatment region along the waste gas conveying direction. The device adopts a wet spray oxidation and dry ozone catalysis two-stage coupling process, effectively deals with complex working conditions of aquatic feed waste gas, physically isolates a mixing cavity from a catalytic oxidation cavity, fully pre-mixes ozone and waste gas, periodically sucks by a piston, forcibly pushes mixed gas to penetrate catalytic particles, remarkably strengthens gas-solid mass transfer and improves catalytic efficiency.

This invention discloses an auxiliary medication feeding device for intensive care, relating to the field of medical device technology. It includes a transfer assembly with an input interface and an input cavity communicating with the input interface; a tubing assembly comprising a coaxially sleeved and relatively slidable outer tube and inner tube; and an expansion assembly located in the middle section of the outer tube, including a limiting membrane and an expansion flap, the limiting membrane and expansion flap being inclined in opposite directions and both pointing towards the cardia. The transfer assembly of this auxiliary medication feeding device for intensive care incorporates a slidable piston and an elastic element, forming a mechanical pressure feedback valve that effectively prevents reflux and patient discomfort caused by sudden pressure increases. Furthermore, the expansion flap design allows it to closely conform to the cardia area, forming a physical sealing barrier. This effectively blocks the reflux of gastric contents, significantly reducing the risk of aspiration pneumonia.

The invention discloses a one-key control double-cavity delayed switching flushing assembly and a pedestal pan. A shell is provided with a water inlet path, at least two water outlet paths, a water inlet cavity, two pressure adjusting cavities, a first water passing cavity and a second water passing cavity, wherein the first water passing cavity and the second water passing cavity are communicated with the two pressure adjusting cavities respectively; the driving group is arranged in the water inlet cavity; the plurality of delay groups are respectively arranged in the two pressure regulating cavities; the delay set comprises a plunger sleeve, a water sealing piece, a reset piece and a pressure relief hole. The pressure relief hole is used for discharging after the pressure regulating cavity is filled with water; the plunger sleeve moves in the axial direction of the pressure adjusting cavity and is used for driving the water sealing piece to open and close a water passing channel communicating with the first water passing cavity or the second water passing cavity in the drainage process. The reset piece acts on the pressure regulating cavity and the plunger sleeve; according to the flushing assembly and the pedestal pan, the problems that an existing mechanical emergency flushing valve assembly needs to be additionally matched with a complex switching valve to achieve flushing in a power-free state, the size is large, and the delay stability is insufficient are solved.

The utility model relates to a novel rotating wheel type urine detection device which comprises a main body, the main body is in a hollow polygon prism shape, each surface of the outer wall of the main body is provided with a detection unit, and each detection unit is provided with a detection groove along the axial direction; one end of each detection groove is provided with a urine injection port communicated with the groove body; the detection test paper is placed in the detection groove, the width and the length of the detection test paper are equal to those of a groove body of the detection groove, and the thickness of the detection test paper is smaller than the height of the groove body of the detection groove. The automatic urine detection device can replace an existing rotating wheel type urine detection device, solves the problems that the existing rotating wheel type urine detection device is slow in liquid injection and uneven in color of color blocks, improves the detection efficiency of the automatic urine detection device, and provides more accurate detection signals for the automatic urine detection device.

The utility model provides a kind of mobile power supply system for electron beam scanning electron microscope ion pump.The mobile power supply system includes box, the power supply core being set in the box, charging interface and at least one discharge interface.Charging interface is used to connect external power supply and power supply system, to charge power supply system;Each discharge interface is used to connect power supply core and an ion pump, to discharge ion pump.The mobile power supply system of the utility model integrates multiple functions, is easy to operate, and has complete safety measures, which can ensure that the internal vacuum degree of the electron gun deteriorates during transportation, and maintain the high vacuum state of the electron gun by supplying power to the ion pump to vacuumize the electron gun.The mobile power supply system is installed in the electron gun transport cabinet in the form of a module, which is small in size and easy to install.When the entire module fails, efficient maintenance can be achieved by replacing the module, reducing maintenance time and cost.

The utility model discloses a kind of waste gas absorption towers with anti-reflux function, it is related to waste gas absorption tower technical field.The utility model includes absorption tower and filter screen fixedly connected on the inner wall of absorption tower, further include: scrape clean part, the scrape clean part is installed on the inner wall of absorption tower;And anti-reflux part, the anti-reflux part is installed in absorption tower;Wherein, filter screen is filled with washing water cotton, scrape clean part is located above anti-reflux part, air suction component, the air suction component is installed on cross support frame one;Wherein, scrape clean component is located below filter screen, air suction component is located above filter screen.The utility model is through being provided with scrape clean part, solved the existing waste gas absorption tower in use process, it is inconvenient to scrape clean to the filter screen of wetting treatment liquid, will lead to the treatment liquid remaining on filter screen surface and the pollutant in waste gas continuously react and generate impurity and adhere, make filter screen pore gradually block, influence gas-liquid flow efficiency, reduce absorption effect problem.

The utility model discloses a miniature electric liquid separator and a reagent bottle thereof. The miniature electric liquid separator comprises a shell, a lower cavity, a middle cavity and an upper cavity which are sequentially formed in the shell from bottom to top, and an interaction assembly arranged at the top of the shell, a micro peristaltic pump is fixed on the inner side of the lower cavity; a storage battery and a wireless charging coil are fixed on the inner side of the middle cavity; a PCB (Printed Circuit Board) control board for receiving and transmitting a control instruction to the interaction assembly and controlling the micro peristaltic pump to accurately transfer liquid is fixed on the inner side of the upper cavity; the miniature peristaltic pump, the storage battery and the PCB control board are sequentially arranged in the lower cavity, the middle cavity and the upper cavity of the shell, so that the electric liquid separator is simple in structure, convenient to transfer liquid, high in accuracy and low in manufacturing cost, and pollution caused by misoperation is prevented. And the urgent demand of scientific research personnel on the pipetting tool can be well met.

The present application relates to coking wastewater treatment technical field, especially a kind of composite defluoridation silicon removal precipitation device for coking wastewater, comprising: reaction tank, reaction tank is used to regulate internal coking wastewater pH value;Water inlet assembly, including the water inlet that is arranged through the bottom of reaction tank, floating tube, water inlet is when there is coking wastewater flow in, float tube is pushed up and slides upward, water inlet is when there is no coking wastewater flow in, reset downward and close water inlet;Homogenizer, homogenizer mixes coking wastewater and flocculating agent when floating on floating tube, when sliding reset, the upper and lower layers are physically isolated;Water inlet triggers simultaneously flocculating agent spraying and homogenizer stirring, so that wastewater and reagent are fully mixed, improve reaction efficiency;No water inlet automatically closes water inlet and stops medicine, reduce waste and prevent backflow;When water inlet, blade stirring promotes reaction, after stopping water inlet, blade is flattened and separates upper and lower layers, avoid impurity pollution upper layer liquid when slag is cleaned, guarantee secondary treatment effect.

The invention relates to the technical field of reactor waste heat removal, in particular to a heat dissipation system and method for an ocean floating nuclear energy platform reactor, and the heat dissipation system comprises a loop subsystem, a natural circulation loop, a steam power generation subsystem and an ocean hot trap; the first loop subsystem comprises a reactor core, a pressure container and a coolant pipeline; the natural circulation loop comprises an intermediate heat exchanger, a seawater circulation pipeline and a waste heat discharge main pipeline, and the intermediate heat exchanger is connected with the loop subsystem through a coolant pipeline and used for discharging waste heat to the outside through natural circulation; the ocean heat trap takes external seawater as a final heat trap and is connected with a seawater circulating pipeline, a residual heat discharge main pipeline and a steam power generation subsystem; through the dual design of vapor-liquid separation and pressurization backflow prevention, the core condition for generating a condensation water hammer is avoided from the source, pipeline burst is effectively prevented, and the operation safety of the reactor heat dissipation system of the marine floating nuclear energy platform is remarkably improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a leakage-proof urinal which comprises a storage device, a connector and a collector. One end of the connector is communicated with the memory, and the other end of the connector is communicated with the collector; the collector comprises a collecting cavity; a water absorbing layer is arranged on the inner wall of the collecting cavity; one end, far away from the connector, of the collecting cavity is gradually expanded; the collecting cavity is a cavity with a collecting opening and a connecting opening; the collecting opening and the connecting opening are located in the two ends of the collecting cavity respectively. And the connector is communicated with the connecting hole. The urine collector has the beneficial effects that 1, during use, the collecting cavity covers the urethral orifice of a patient, so that the urine of the patient can be collected; the inner wall of the collection cavity is provided with the water absorption layer, urine leakage is effectively prevented, and pollution is reduced.

The invention provides a particle discharging device and method for a Tokamak divertor area. The device comprises an adsorbent pump unit arranged in a divertor area and a gas channel structure communicated with the divertor area, and is used for capturing and discharging neutral particles generated by interaction of plasma and divertor components. The adsorbent pump unit is made of a non-evaporation type adsorbent material, has high adsorption capacity on hydrogen and isotopes thereof, can keep stable structure and working performance under the condition of high temperature, and is suitable for a high-heat-load and high-particle-flux operating environment in a divertor area. The in-situ air exhaust of the neutral particles is realized in the divertor area, so that the transport path of the particles is shortened, and the response speed and efficiency of particle discharge are improved. Meanwhile, the particle discharging device has large air extraction capacity and effective extraction speed, is suitable for tritium-related application scenes and operating environments with neutron irradiation, and has good engineering application prospects.

The utility model relates to an anastomosis instrument which comprises a head, a waist and a tail. The head portion is in a hollow pipe shape, one end of the head portion can be connected with a first pipeline, the waist portion is hollow, arranged between the head portion and the tail portion and connected with the other end of the head portion and one end of the tail portion respectively, the waist portion is formed by inwards retracting the other end of the head portion, and the other end of the tail portion is connected with the inner wall of a second pipeline in a matched mode. The inner anti-disengaging piece makes contact with the outer wall of the first pipeline and applies anti-disengaging force to the first pipeline. According to the anastomosis instrument, the direct and stable instrument is provided, due to the arrangement of the waist part, the first pipeline and the second pipeline can be directly and stably anastomosed, liquid backflow and overflow are avoided, suture of a doctor is avoided, the difficulty of pipeline anastomosis is greatly reduced, meanwhile, the inner anti-disengaging piece can effectively prevent the first pipeline from shifting or disengaging, and the anastomosis effect is improved. And the anastomosis stability and safety are greatly improved.

This utility model belongs to the field of dust collection equipment, specifically a dust collector for antioxidant production, comprising: a housing, wherein a partition is fixedly connected inside the housing, a filter screen is installed on the top of the partition screen and the filter screen is arranged at an angle, an air guide hood is fixedly connected to the side wall of the filter screen, a vacuum cleaner is connected to the air guide hood, and the output end of the vacuum cleaner is fixedly connected to the dust collection box through a guide pipe; and a guide rod, which is fixedly installed on the bottom of the inner wall of the guide pipe, and a base plate is slidably connected to the guide rod. This utility model, through the coordinated arrangement of the vacuum cleaner, air guide hood, dust collection box, valve core, baffle, and other structures, enables the valve core to reset when the vacuum cleaner is turned off, thus promptly closing the guide pipe. This prevents dust still flowing inside the dust collection box from flowing back into the vacuum cleaner. Furthermore, the arc-shaped guide plate guides the airflow, causing the dust-laden airflow inside the dust collection box to flow back to the bottom of the dust collection box, rather than flowing back into the guide pipe.