351 results about "Oxygen tank" patented technology

The invention provides a motor control method, device and equipment, and is applied to the technical field of motors. The method comprises the following steps: before oxygen supply, controlling a motor to start running at a pre-configured minimum driving current, controlling the driving current of the motor to increase progressively before the motor has a rotating speed, determining a target driving current of the motor when the motor is changed from a non-rotating speed to a rotating speed, and storing the target driving current as a driving current required by the motor in an oxygen supply process, and in the oxygen supply process, the motor is controlled to operate at the target driving current to apply pressure to the oxygen bottle, so that the oxygen bottle releases oxygen. According to the method provided by the invention, the oxygen supply system can take the oxygen bottles of different specifications as the oxygen source, so that the oxygen supply system can be matched with the oxygen bottles of various specifications, and the compatibility of the oxygen supply system can be improved.

The invention provides composite spinning equipment for forming rocket pipe type structural parts. The composite spinning equipment comprises a structural system, an operation table, an oil cooler, an oil tank, a control cabinet, a water cooler, a heating system, a gas distribution cabinet, a hydraulic station, an oxygen bottle, a circulating filtering device and a propane gas bottle. The structural system comprises a main spindle box, the main spindle box has active power and can achieve controllable rotation, a closing-in spindle box does not have active power, and when closing-in spinning needs to be conducted, the main spindle box and the closing-in spindle box are connected through a coupler, and controllable rotation of the closing-in spindle box is achieved; the water cooling machine is used for cooling the spinning roller in the spinning process; the heating system can heat the workpiece to realize hot spinning; the circulating filtering device sprays cutting fluid to the workpiece, circulating filtering use of the cutting fluid is achieved, and wet-type forced rotation is achieved. The hot spinning and wet spinning device has the integrated hot spinning and wet spinning effects of strong spinning, close-up common spinning and the like.

The utility model relates to the technical field of full-premixing combustors, in particular to a novel full-premixing combustor for a cracking furnace, which comprises a bearing frame, a gas inlet pipe, a gas inlet component, a gas pump, a gas outlet pipe and a co-combustion component, a gas pipe is arranged on the lower side of the co-combustion component, a heat circulating pipe is arranged at one end of the co-combustion component, and a gas outlet pipe is arranged at the other end of the co-combustion component. A fan is installed at one end of the heat circulating pipe, a heat circulating pipe is arranged at the position, close to the heat circulating pipe, of one end of the mixed combustion component, an oxygen tank is installed at one end of the upper side of the bearing frame, and an oxygen pipe is arranged on the upper side of the oxygen tank. Heat in the mixed combustion component is circulated into the air inlet component, extracted air is preheated, the influence on the mixed combustion temperature of the combustor is avoided, oxygenation operation is conducted on the air inlet component through the oxygen tank and the oxygen pipe, the completeness of gas combustion is facilitated, gas and entering gas are mixed through the mixed combustion component, and the uniformity of gas combustion is improved.

The invention relates to the technical field of oxygen monitoring, in particular to an oxygen remaining amount monitoring system for an oxygen bottle. The system comprises a digital monitoring module, a real-time feedback early warning module, a gas purity monitoring module, an intelligent gas supplementing module and an integrated control unit, wherein the digital monitoring module is used for collecting pressure and flow data in real time and converting the pressure and flow data into digital signals; the real-time feedback early warning module is used for transmitting the acquired digital signal to the microcontroller and carrying out graded early warning by calculating the residual amount of the oxygen steel cylinder and the sustainable use time; the gas purity monitoring module is used for monitoring oxygen humidity and oxygen pressure in real time to evaluate oxygen purity so as to obtain the remaining purity of an oxygen bottle; the intelligent gas supplementing module is used for automatically controlling the oxygen steel cylinder to carry out gas supplementing operation; and the integrated control unit is used for integrating functions of all the modules and performing data display through a human-computer interaction interface. The residual amount and sustainable use time of the oxygen steel cylinder can be monitored in real time.

The invention discloses a diving bell air supply system for diving and an air supply method thereof.The air supply system comprises a diving bell body, a diving bell umbilical cord, a diver umbilical cord and a bell-borne air supply unit, the diving bell umbilical cord comprises an air supply pipeline and a breathing air pipeline, and high-pressure environment air is provided for the diving bell body, and breathing air is provided for operators; the clock-borne gas supply unit comprises a helium bottle, a liquid nitrogen Dewar bottle and a liquid oxygen Dewar bottle, high-pressure helium-oxygen mixed gas is stored in the helium bottle, gas outlet pipelines of the liquid nitrogen Dewar bottle and the liquid oxygen Dewar bottle are connected to the breathing gas supplementing pipe in parallel, and supplemented nitrogen and / or oxygen are / is adjusted based on the working depth of the diving clock body. The breathing air supply pipe and the breathing air supplementing pipe are connected to the inlet end of the busbar after being connected in parallel and converged, the inlet end of the busbar is further connected with a breathing air pipeline, and the outlet end of the busbar is connected with multiple diver umbilical cords. The proportion of helium, nitrogen and oxygen can be flexibly adjusted according to the current operation depth of the diving bell, and the breathing requirements of divers at different water depths are effectively met.

The invention relates to the technical field of article cleaning, in particular to a cleaning device for sports goods, which comprises a support frame and an internal and external cleaning assembly arranged on a top plate of the support frame, the inner and outer cleaning assembly comprises an inner cleaning assembly arranged on a top plate of the supporting frame and an outer cleaning assembly arranged at the end of the inner cleaning assembly, an oxygen tank is arranged in the middle of the rotating supporting seat, and a locking assembly and a switching driving assembly are arranged at the end of the inner cleaning assembly. The oxygen tank is automatically locked through the locking assembly, the switching driving assembly is started, the switching driving assembly drives the oxygen tank to rotate through the inner cleaning assembly, the inner cleaning assembly cleans the interior of the oxygen tank at the same time, and the inner cleaning assembly drives the outer cleaning assembly to move and clean the oxygen tank at the same time; therefore, simultaneous cleaning of the inside and the outside of the oxygen tank is realized.

The invention discloses an oxygen supply device for agricultural microbial fertilizer fermentation, and relates to the technical field of microbial fertilizer ferment.The oxygen supply device for agricultural microbial fertilizer fermentation comprises a base, a linkage plate is fixedly installed at the top of the base, and a hydraulic cylinder is fixedly installed at the top of the base; a fermentation tank is rotatably mounted at one end, away from the base, of the linkage plate, and a motor I is fixedly mounted on the surface of the fermentation tank. According to the oxygen supply device for agricultural microbial fertilizer fermentation, aeration holes are limited in a large area through lantern rings under the action of a hydraulic cylinder, and at the moment, the oxygen supply value of an oxygen supply tank to the interior of the fermentation tank is minimum; at the moment, adaptation to oxygen supply requirements of the fertilizer in different fermentation time periods is achieved, then the fermentation rate and effect of the fertilizer in different stages are improved, the requirements of the fertilizer in different fermentation time periods are accurately adapted in the mode of automatically adjusting the oxygen supply amount according to the fermentation stages, and therefore the fermentation rate and effect of the fertilizer in each stage are improved.

The invention discloses a vehicle fuel cell oxygen supply system and method for a variable altitude environment, and the system comprises an air compressor, a three-way valve, a high-pressure oxygen cylinder, a gas storage tank, and a four-way proportional valve. An outlet of the high-pressure oxygen bottle is communicated with a third inlet of the four-way proportional valve; an outlet of the gas storage tank is communicated with a second inlet of the four-way proportional valve; three ports of the three-way valve are respectively communicated with an outlet of the air compressor, an inlet of the air storage tank and a first inlet of the four-way proportional valve; an outlet of the four-way proportional valve is used for being communicated with an air inlet of the fuel cell stack, so that a proper amount of oxygen enters the air inlet of the fuel cell stack. According to the invention, the fuel cell can stably work under different altitude conditions.

The utility model belongs to the technical field of high-density aquaculture, and discloses an oxygen dissolving system for high-density aquaculture, which comprises a support frame, two oxygen dissolving tanks and two water pumps are arranged on the support frame, water supply pipes communicated with the upper ends of the corresponding oxygen dissolving tanks are arranged at the water outlet ends of the water pumps, and water supply control valves are arranged on the water supply pipes. Sieve plates, fillers and oxygen inlet pipes are arranged in inner cavities of the oxygen dissolving tanks, an electromagnetic valve is arranged on the oxygen inlet pipe of each oxygen dissolving tank to control the oxygen inlet amount, the oxygen inlet pipes of the two oxygen dissolving tanks are jointly connected with a main air pipe, the air inlet end of the main air pipe is connected with an oxygen tank, and the lower portions of the oxygen dissolving tanks are connected with drainage pipes. A drainage valve is arranged on the drainage pipe. The oxygen dissolving system for aquaculture can improve the content of dissolved oxygen in water, is high in oxygen dissolving efficiency and low in energy consumption, and further reduces cost.

The utility model discloses an improved transfer trolley. The improved transfer trolley comprises a transfer trolley body, an oxygen tank mounting assembly, an instrument placing table assembly and an infusion bottle rack mounting seat, the oxygen tank mounting assembly comprises an extension support with one end fixed to the transfer trolley body, a first connecting sleeve fixed to the other end of the extension support in the longitudinal direction, an insertion rod arranged in the first connecting sleeve in a sleeved mode, an upper supporting seat arranged at the top of the insertion rod and an upper end ring connected with the upper supporting seat. The connecting plates are distributed in the longitudinal direction and annularly arranged on the lower portion of the upper end ring, and the lower end plates are arranged at the bottoms of the connecting plates. The instrument placing table assembly comprises a second mounting seat, a third mounting seat, a second connecting sleeve connected with the second mounting seat, a third connecting sleeve connected with the third mounting seat, and longitudinal supporting rods inserted into the second connecting sleeve and the third connecting sleeve in a one-to-one correspondence manner; the second mounting seat and the third mounting seat are fixed on the two sides of the transfer trolley body in a one-to-one correspondence manner; and the supporting table is arranged on the longitudinal supporting rod.

An apparatus for controlling a fuel cell includes a fuel cell with an anode and a cathode, an oxygen tank that supplies oxygen to the cathode, and a processor. The processor enables the fuel cell, in response to a request to enable the fuel cell with preset electric power being less than a reference value of a stack included in the fuel cell, adjusts an internal pressure of a cathode to a preset pressure by adjusting an amount of oxygen supplied from the oxygen tank to the cathode while driving an air compressor included in the fuel cell, based on enabling of the fuel cell, and controls at least one of driving of the air compressor or a pressure of oxygen based on that the electric power being less than the reference value and more than the preset electric power while the fuel cell outputs the electric power by the preset pressure.

The invention provides an air brick surface air permeability distribution detection device and method based on a refining furnace, and belongs to the field of air brick detection. In the device, an oxygen bottle and an oxygen pressure reducing valve as well as an argon bottle and an argon pressure reducing valve form a first gas path and a second gas path respectively, and the two gas paths are combined and then connected into a gas mixing device and then connected into an air brick; the base is used for bearing air bricks; the matrix detector is arranged on the test platform, is positioned right above the air brick, is connected with the signal processor and is connected with the Z-axis vertical adjusting rod, and the Z-axis vertical adjusting rod is connected with the position adjuster; the signal processor and the position regulator are connected with the control center; the matrix type detector is a matrix grid formed by arranging N * M detection sensors, and each sensor corresponds to a detection point and is used for detecting plane gas parameters at the position above the air brick; and the plane air pressure grids at a plurality of positions form an air permeability distribution diagram. According to the invention, the comprehensiveness and accuracy of air permeability detection of the air brick are improved.

The invention discloses a medical intelligent molecular sieve oxygen generator, and relates to the technical field of oxygen generators, the medical intelligent molecular sieve oxygen generator comprises a shell, a first connecting channel, a power supply connecting port, an air compressor, a rotary valve, a molecular sieve cylinder, an oxygen tank, an air pump and a sealing assembly, the first connecting channel is arranged on the outer wall of the shell, and the power supply connecting port is arranged on the outer wall of the shell; an air compressor is installed on the inner wall of the shell, and a rotary valve is installed at one end of the air compressor. A first connecting rod moves to drive a first clamping head to move, the first clamping head moves to drive a first spring to move, the first spring moves to enable the first clamping head to move out of a second opening, a machine door is installed on the outer wall of the shell, a molecular sieve cylinder is moved to move after the machine door is opened, and the molecular sieve cylinder moves to move out of a first clamping groove to be replaced. The molecular sieve barrel and the first clamping groove are sealed through the sealing gasket, and the function that the intelligent molecular sieve oxygen generator can rapidly replace the molecular sieve and shorten the oxygen generation maintenance time is achieved.

The invention discloses an intelligent oxygen inhalation device integrating wireless transmission and oxygen flow automatic adjustment, and belongs to the technical field of oxygen therapy medical equipment. An intelligent oxygen inhalation device integrating wireless transmission and automatic oxygen flow regulation comprises an oxygen tank, a regulating three-way pipe and a miniature finger pulse oxygen monitor, a high-precision regulator and a stepping motor are mounted at the rear end of the automatic flow regulator, and mechanical regulating valve plates are arranged at the upper end and the lower end in the high-precision regulator. And the miniature finger pulse oxygen monitor is connected with the automatic flow regulator through the plc module. The problems that an existing oxygen uptake flow adjusting device is poor in adjusting effect on the size of an oxygen channel and cannot meet actual medical requirements are solved, pulse oxygen changes of a patient can be responded in real time through closed-loop control, the plc module is matched with the miniature finger pulse oxygen monitor, the oxygen flow is automatically adjusted to the most suitable level, and the medical requirement is met. And the multi-stage control of the tank body valve, the electromagnetic valve, the automatic flow regulator and the secondary flow valve is realized, so that the fault-tolerant capability of the system is stronger.

The utility model relates to the field of lifting, in particular to a lifting mechanism for reducing lifting force, which comprises a base component and a counterweight component, the base component comprises a base, guide wheel components for mounting guide rails and a handle, the handle is mounted on the base, the guide wheel components are mounted at four corners of the base, and the counterweight component comprises guide wheels, ropes, chucks and counterweight plates. The guide wheel is installed above the base, the rope penetrates through the guide wheel, the two ends of the rope are connected with the guide wheel assembly and the balance weight plate of the base respectively, and the chucks are fixed to the two ends of the rope. According to the product, the base assembly and the counterweight assembly are adopted, ascending or descending of the oxygen bottle can be easily achieved through simple operation of a single person, the work efficiency of ascending and descending is improved, and safety in the using process is ensured.

The invention provides a variable circulation hybrid electric propulsion system applied to an unmanned aerial vehicle and a propulsion method of the variable circulation hybrid electric propulsion system, and belongs to the technical field of aircraft propulsion. The problems of insufficient power and endurance of the unmanned aerial vehicle are solved. The four liquid rocket engines are arranged around the unmanned aerial vehicle body through the vehicle arms; each rotor wing is correspondingly arranged above the liquid rocket engine; a motor and a pump are arranged in the liquid-propellant rocket engine, and the combustion chamber is located below a shell of the liquid-propellant rocket engine and connected with the spray pipe. A fuel cell in the unmanned aerial vehicle body is located at the upper end of the unmanned aerial vehicle body. An energy storage cell is embedded into the lower middle portion of the fuel cell. The energy management system is embedded into the middle-upper part of the fuel cell; and the oxygen tank is positioned at the lower end of the fuselage. The fuel cell is adopted to charge the energy storage cell, the energy storage cell drives the pump to stably convey fuel to the combustion chamber, the problem that a traditional liquid rocket engine depends on complex external energy when started for multiple times is effectively solved, and rapid and reliable repeated starting of the engine is achieved.

The utility model discloses an integrated electric appliance for a vehicle. The oxygen generating device comprises a box body, an oxygen generating part, a refrigerating part and a heating part, the oxygen generating part is arranged on the outer side of the box body; the refrigeration part comprises a refrigeration bin arranged in the box body; the heating part comprises a heating bin arranged in the box body. The oxygen generation part comprises a filter, a compressor I and an oxygen generator which are arranged on the outer side of the box body and are connected in sequence. The oxygen generator comprises a molecular sieve, an oxygen tank, a filter bottle and a filter device which are connected in sequence; the molecular sieve is connected with the first compressor. The refrigeration part comprises a refrigeration bin arranged in the box body and a refrigeration assembly arranged on the outer wall of the box body. The multifunctional oxygen generator has the advantages that components required by oxygen generation, refrigeration and heating are integrated on the box body through compact design, various requirements of users are met, and the space in a vehicle is greatly saved while the multifunctional oxygen generator has high functionality; all the parts are attached to the box body independent of the vehicle body, can be matched with various vehicle models instead of being bound with fixed models, can be used at any time after being assembled, and is easy to disassemble and assemble and convenient to repair.

The invention relates to the field of wastewater treatment, in particular to a combined treatment method for azo dye and condensation dye production wastewater. The integrated process of enhanced Fenton oxidation, the IC anaerobic reactor, the anoxic tank, the aerobic tank (AO) and the membrane bioreactor (MBR) developed by the invention realizes efficient removal of organic matters, gives consideration to economical efficiency and stability, and breaks through the bottlenecks of high energy consumption and low efficiency of the traditional process.

The invention relates to the technical field of health preserving cabins, in particular to a thermal therapy health preserving cabin with an oxygenation function, which comprises a cabin body, a cabin door mounted on the front side of the cabin body, a ventilation window mounted on the back side of the cabin body, a base mounted at the bottom of the cabin body, an upper cover mounted on the top of the cabin body, a health preserving bed arranged in the cabin body, an oxygen tank arranged in the cabin body and a cart arranged in the cabin body, the oxygen tank is connected to the cart in a clamped mode, the multiple biobrick function modules are evenly laid at the bottom in the cabin body, and the biobrick function modules stably radiate terahertz waves with the frequency band ranging from 0.1 THz to 12 THz. Stable radiation of terahertz waves with the frequency band of 0.1-12 THz is ensured, and the requirement of biological resonance physiotherapy is met.

The invention relates to the technical field of emergency rescue equipment, in particular to a compressed oxygen self-rescuer with a hand-free wearing function, which comprises a protective shell, an oxygen bottle, a switch hand wheel, an air storage bag, an extension soft bag, an air distribution layer, an absorption tank, an exhalation pipe and a split plate, by prolonging the closed space jointly formed by the soft bag and the air storage bag, it is ensured that the finally formed closed space can still be rapidly filled with oxygen-enriched air output by the low-pressure air supply end of the oxygen bottle, the situation that the inflation time is prolonged due to the too large volume can be avoided, and the situation that breathing resistance is increased due to the too small volume can also be prevented; according to the utility model, the soft material is prevented from collapsing and twisting due to insufficient inflation, the airflow channel is ensured to be always unblocked, and a user can feel obvious airflow support when inhaling the first breath, so that the panic emotion is effectively relieved.

This utility model relates to the field of ventilation therapy equipment and discloses an oxygen concentrator that does not require an internal battery. It includes: an adsorption tower with an oxygen outlet; an oxygen tank configured to receive and store oxygen produced by the adsorption tower from the outlet; a control component including a pulse valve located at the oxygen supply end of the oxygen tank, the pulse valve being controlled to open during the user's inhalation and close during exhalation to form a pulsed oxygen supply; and a power connection component configured to connect to an external power source, which serves as the sole power source for the oxygen concentrator. The pulse valve design prevents oxygen waste caused by outputting oxygen during the user's exhalation. Compared to oxygen concentrators that provide continuous oxygen supply, this battery-free oxygen concentrator is smaller and more convenient, effectively mitigating the inconvenience caused by the large size of traditional oxygen concentrators, while maintaining the same amount of oxygen inhaled by the user.

The utility model relates to smelting sewage treatment technical field, the utility model provides a kind of zinc smelting sewage environmental protection treatment system, sewage pool, sewage pool top is equipped with inlet, the outlet of deslagging of being equipped with by first spiral deslagging machine in the lower side wall of sewage pool, sewage pool lower side is connected with adjusting pool after first filter screen, adjusting pool lower side is connected with anoxic tank after second filter screen, anoxic tank one end lower side is connected with oxygen tank after third filter screen, oxygen tank is connected with air blower, residue in the bottom of oxygen tank is discharged to sludge pool through the outlet of sludge of oxygen tank side wall opening by second spiral deslagging machine, oxygen tank lower side is connected with MBR reaction pool after fourth filter screen, MBR reaction pool is connected with the clean water pool being arranged below by clean water pipe, utilize the link of step-by-step purification formed by gravity effect, ensure that sewage is in turn through physical deslagging, water quality adjustment, biological denitrification and phosphorus removal, membrane separation treatment link, reduce energy consumption and floor area, ensure the purification treatment efficiency and water quality stability of sewage.

The utility model relates to a pressure reducing valve device with a waterproof function, which comprises a valve body, an oxygen bottle connector is arranged at the opening end of the valve body, a connecting part is arranged between the oxygen bottle connector and the valve body, and the valve body and the oxygen bottle connector are fixedly connected through the connecting part. When the pressure of oxygen in an external oxygen bottle is reduced, the pressure in the oxygen bottle connector is reduced, at the moment, the spring pushes the valve element to move towards the oxygen bottle connector, the bottom end of the air hole is driven to move synchronously, and when the bottom end of the air hole moves to be communicated with the alarm pipeline, the water-proof sealing structure is closed. Therefore, gas can be discharged into the alarm pipeline through the air hole, penetrates through the one-way valve and then is discharged from the bottom end of the alarm pipeline, bubbles are formed underwater, a user is reminded of insufficient oxygen pressure, and the problem that the underwater welding quality can be seriously affected due to the fact that the oxygen pressure is insufficient and a welding rod cannot be fully combusted is avoided as much as possible.

The utility model discloses a waste gas treatment device of a carburizing furnace, which belongs to the technical field of heat treatment equipment and comprises a box body, the air inlet assembly is located below the box body, and the air inlet assembly is located on the right side of the air supply assembly; the air supply assembly is located on the lower left portion of the box body and located on the inclined left portion of the air storage assembly; the air storage assembly is located in front of the box body and located on the right side of the air blowing assembly; the air blowing assembly is located on the inclined right side of the box body, and the air blowing assembly is located behind the air supply assembly. When waste gas enters a gas inlet box, the waste gas is fed into a combustion pipe through a gas inlet pipe on the gas inlet box, then oxygen is fed into a gas supply pipe through an oxygen tank in a gas supply box, the oxygen is sprayed into the combustion pipe through a gas supply spray head on the gas supply pipe, and then the waste gas is ignited through ignition of an electronic igniter; the threat of the waste gas to the body health of workers is avoided, and the occurrence of dangers is reduced.

The environment perception and emergency oxygen supply safety helmet comprises a helmet body, a control processor is integrated in the helmet body, and a network module, a positioning module and a communication module are integrated on the control processor; an environment sensing assembly, an emergency oxygen supply assembly and a warning indicator are arranged on the helmet body. According to the safety helmet, the environment sensing assembly is integrated in the helmet body, the working environment can be actively detected, early warning is given out in advance when hazardous gas leaks, oxygen is insufficient or the environment temperature is abnormal, and the safety protection initiative is greatly improved. The miniature high-pressure oxygen bottle is integrated in the cap body, so that the survival rate is remarkably increased; by means of a built-in network module, a positioning chip and a communication module, real-time environment data, an accurate geographic position and alarm information can be synchronized to a remote monitoring center, and rear-end personnel can grasp on-site conditions globally. Various safety functions (monitoring, alarming, oxygen supply and communication) are integrated in a traditional safety helmet form, and the safety helmet is convenient and practical.

This invention belongs to the field of solid waste resource utilization technology. To address the problems of inconsistent temperature during existing fluidized bed waste plastic gasification processes, which prevent graded conversion and result in products primarily consisting of hydrogen and carbon monoxide with low added value and low energy efficiency, this invention provides a device and method for graded gasification of waste plastics to prepare chemicals. The fluidized bed reactor has a top section connected to a silo. The middle section of the reactor is connected to air / oxygen tanks, carbon dioxide tanks, hydrogen tanks, and carbon monoxide tanks. A gas-liquid separator and column chromatography are connected at the top of the reactor, and a liquid pump connects it to a preheater at the bottom. An outlet is located at the bottom. Graded conversion of waste plastics is achieved within the fluidized bed, increasing the added value of the waste plastics and facilitating their graded conversion and high-value utilization. The invention features high production efficiency, continuous production capability, and applicability to other solid waste resource utilization processes.

The utility model discloses a closed oxyhydrogen fuel cell power generation system which comprises a fuel cell stack and a circulating pump, the fuel cell stack is respectively connected with the circulating pump, an oxygen tank and a hydrogen tank, oxygen is conveyed to the fuel cell stack through the oxygen tank, hydrogen is conveyed to the fuel cell stack through the hydrogen tank, and the circulating pump is connected with the circulating pump. And cyclic utilization of oxygen is realized through the circulating pump. According to the utility model, the unreacted oxygen is recycled through the circulating pump, the pressure of the oxygen and hydrogen before entering the fuel cell stack is monitored while the oxygen and hydrogen are conveyed, and the opening degrees of the oxygen inlet electromagnetic valve and the hydrogen inlet electromagnetic valve are regulated according to the pressure; the problem of backflow caused by too large oxygen pressure of a circulation path before oxygen enters a reactor is solved by arranging a first check valve, gas pumped by a four-way connector cannot reversely flow into a circulation pump by arranging a second check valve, and a hydrogen pulse discharge electromagnetic valve and an oxygen pulse discharge electromagnetic valve are designed to be intermittently opened; hydrogen and oxygen can fully react, and the gas utilization rate is increased.

The invention relates to the technical field of medical equipment, in particular to a multivariable coupling oxygen cylinder time-use rapid calculation disc and calculation method. The computing disk comprises a bottom-layer disk, a middle-layer disk and a top-layer disk which are sequentially arranged from bottom to top; oxygen concentration scales on the outer ring, available time scales on the middle ring and oxygen consumption rate scales on the inner ring are arranged on the bottom-layer disc; flow / minute ventilation capacity scales corresponding to the oxygen concentration scales, an available time indicating frame corresponding to the available time scales and an oxygen consumption rate indicating frame corresponding to the oxygen consumption rate scales are arranged on the middle layer disc, and an oxygen consumption rate indicating arrow protruding inwards is arranged in the oxygen consumption rate indicating frame; oxygen bottle pressure scales corresponding to the oxygen consumption rate scales and an available time indicating arrow are arranged on the top layer disc. According to the calculation disc, through a mechanical structure and a scale alignment mechanism, the calculation process is simplified, rapid and accurate time estimation under multiple oxygen inhalation modes is achieved, and therefore the clinical operation reliability is improved.

The invention provides an oxygen flow dynamic conveying control method and system, and the method comprises the steps: obtaining the current driving road information of an ambulance and the current body sign data of a user, and recognizing the current road condition information of a vehicle driving route of the ambulance based on the current driving road information of the ambulance; identifying current physical sign data distribution information of each physical sign data type of the user based on the current physical sign data of the user, and identifying an oxygen demand range of the user through an oxygen delivery amount analysis model based on the current physical sign data distribution information of each physical sign data type; and based on the current road condition information of the vehicle driving route of the ambulance and the oxygen demand range of the user, current dynamic oxygen supply distribution information of the user is generated through an oxygen supply analysis model, and based on the current dynamic oxygen supply distribution information, a current oxygen supply dynamic control strategy of the oxygen tank is generated. By adopting the scheme, the supply dynamic adaptation degree of oxygen supply for the user can be comprehensively improved.

This utility model relates to an automatic air intake structure for an optical coating machine, including a rectangular base plate. A coating machine body is fixedly connected to the top of the rectangular base plate, and an oxygen tank is also fixedly connected to the top of the rectangular base plate. An electromagnetic valve is installed inside the coating machine body, and a controller is installed on the top of the oxygen tank. The controller is electrically connected to the electromagnetic valve. The oxygen tank is located on the side. This automatic air intake structure for the optical coating machine, through its air intake mechanism design, allows for quick disassembly and installation of the air intake pipe. This solves the problems of existing fixing methods, which are often complex. After fixing the air intake pipe, if the oxygen in the oxygen cylinder runs out and needs to be replaced, special tools are required to remove the air intake pipe, making the operation cumbersome and increasing the workload of the workers. Furthermore, the excessive time wasted in replacing the oxygen cylinder also reduces the working efficiency of the coating machine.