337 results about "Oxygen cylinder" patented technology

The utility model discloses a small diving bell for a motorized saturated diving system, which belongs to the technical field of diving equipment and comprises a bell body and an outer frame, the top of the bell body is connected with the outer frame through a connecting flange, the outer frame is arranged around the outer side of the bell body, and a plurality of groups of helium oxygen bottles and oxygen bottles are arranged on the side surface of the outer frame. The oxygen bottle and the helium oxygen bottle are arranged on the outer frame and used by a diver in emergency, a steel cable joint is arranged in the middle of the top of the clock body, and the clock body is connected with a mother ship through a diving umbilical cord. The small diving bell can independently execute diving tasks underwater, meanwhile, the diving bell is provided with a power source and lighting and photographing equipment and is suitable for underwater operation and recording, a hot water circulation pipeline is arranged in the diving bell and connected with a diving suit to preserve heat for a diver, the diving comfort and safety are guaranteed, and the diving bell is more compact in structure and more convenient to use. Compared with the prior art, the overall dimension is obviously reduced, and maneuvering carrying and land transportation of the system are facilitated.

The invention belongs to the technical field of water treatment, and discloses a micro-nano bubble and ozone combined treatment system and a method for treating neonicotinoid pesticide wastewater by the micro-nano bubble and ozone combined treatment system. The treatment system comprises an oxygen bottle, an ozone generator, an ozone concentration detector, a micro-nano bubble generator, a gas flowmeter, a reaction tank and a thermostatic bath, the ozone generator is started, and ozone enters the micro-nano bubble generator; the micro-nano bubble generator is started, the neonicotinoid pesticide wastewater enters the micro-nano bubble generator and is mixed with the ozone micro-nano bubbles to generate ozone micro-nano bubble water, and the ozone micro-nano bubble water returns to the reaction tank through the water outlet for reaction. According to the method, the contact area of ozone and pollutants is increased, the solubility and mass transfer efficiency of ozone in water are improved, generation of more active substances is promoted through combination of ozone and micro-nano bubbles, the degradation efficiency reaches 90% or above after reaction is conducted for 1 h, and the reaction efficiency is improved.

1. The name of this design product: Oxygen cylinder holder (for wheeled walkers). 2. Purpose of the product of this design: An accessory used on mobility aids such as rollators or wheelchairs, used to place oxygen cylinders. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model discloses an isolated type circulating respiratory protection device. The protection device comprises a protection cover, a breathing apparatus arranged in the protection cover, an air bag arranged outside the protection cover and communicated with the breathing apparatus, a carbon dioxide absorbent bin arranged between the air bag and the breathing apparatus, and an oxygen supply device arranged outside the protection cover and communicated with the air bag. The protective cover is a hollow protective cover capable of at least containing the head, an opening for at least the head to stretch in is formed in the protective cover, and a tightening device capable of tightening the opening is arranged at the opening. The oxygen supply device comprises an oxygen bottle and a trigger switch for controlling the oxygen bottle to supply air into the air bag.

The invention relates to the technical field of medicine preparation, discloses a synthesis method for constructing 4-substituted isocoumarin and analogues thereof through ring opening of oxetane, and synthesizes a series of isocoumarin derivatives. Comprising isocoumarin derivatives with 4-position hydroxymethyl substitution and 4-position amidomethyl substitution, and isocoumarin series compounds composed of five-membered heteroaromatic rings and dihydropyrone, and the synthesized isocoumarin series compounds have a plurality of functionalization sites, can be used as common intermediates in pharmaceutical chemistry research to rapidly provide series derivatives, and can be used for preparing the isocoumarin series compounds. Reaction raw materials and reagents used are convenient and easy to obtain and low in price, reaction conditions in the reaction process are mild, the process is simple, harsh conditions such as high temperature and high pressure are not needed, and the generated product does not contain metal ions, is convenient to separate and purify and is suitable for large-scale production in factories.

The present invention discloses an adjustable endoscopic surgical mask, which relates to the technical field of endoscopic masks and comprises a mask body, wherein the mask body comprises an outer layer and an inner layer, wherein the inner layer connects an oxygen supply port to an interface of an oxygen cylinder through a pipeline, and a front throttle for controlling the gas flow is provided at the oxygen supply port, a carbon dioxide outlet is provided on a sealing member, the sealing member is connected to a negative pressure device through a pipeline, and a rear throttle for controlling the gas flow is installed at the carbon dioxide outlet; a baffle is provided, and an exhalation collection layer is semi-closed by the baffle, so that the gas passes through the baffle, the energy of the carbon dioxide gas flow is weakened, and the range of carbon dioxide gas diffusion is reduced, so as to improve the oxygen quality at the nasal inhalation; according to the angle of the exhaled gas of different users, the carbon dioxide is integrated into the directionally moving gas, so as to effectively prevent the gas from flowing back into the mask, and reduce the risk of cross infection.

The utility model relates to the technical field of fire-fighting emergency equipment, in particular to a personal protection device in a forest fire. The device comprises a storage box, an oxygen bottle, an isolated oxygen supply part and a one-piece protective garment, the oxygen bottle, the isolated oxygen supply part and the one-piece protective garment are placed in a box body, the storage box comprises a cover body and a box body, the cover body detachably covers the box body, and straps are arranged on the box body. The oxygen bottle comprises an inner container and a fiber wrapping part wrapping the outer side of the inner container. The isolated oxygen supply part comprises a mouth tool, an air bag, an oxygen supply pipe and an exhaust pipe, the mouth tool is communicated with the air bag through the oxygen supply pipe, the air bag is communicated with the oxygen bottle through an oxygen supply channel, one end of the exhaust pipe is communicated with the mouth tool, and one-way valves are arranged on the oxygen supply pipe and the exhaust pipe. The oxygen bottle of the device adopts a structure that the inner container is wrapped by the fiber wrapping part, so that the gas bearing capacity of the inner container is increased, the thickness of the inner container is reduced, the dead weight of the oxygen bottle is reduced, the overall weight of the personal protection device in the forest fire is reduced, and light weight of the device is achieved.

The utility model relates to a chemical experiment instrument, in particular to a glass combustion spoon capable of guiding gas and a gas guiding system. A glass burning spoon capable of guiding gas comprises a guide pipe and a spoon body connected with one end of the guide pipe in a communicating mode. During actual use, one end of the guide pipe is communicated with an oxygen bottle, and combustible materials are placed in the spoon body and ignited, so that the combustible materials can be in continuous and sufficient contact with oxygen, the combustible materials are combusted more violently, and the combustion phenomenon observed by students is more obvious. The air guide system comprises an air supply pipe and the glass combustion spoon capable of guiding air, one end of the air supply pipe is communicated with the guide pipe, the other end of the air supply pipe is used for being communicated with an oxygen bottle, and the air supply pipe is provided with a valve body used for controlling the air flow. The valve body is connected to the air supply pipe, so that the air flow can be adjusted according to different combustible materials and the quantity of the combustible materials.

The application discloses a kind of big depth manned submersible emergency breathing system, it is related to diving equipment field, including high-pressure oxygen cylinder, the high-pressure oxygen cylinder is connected with first high-pressure valve body assembly by air pipe, the second sound filter includes sound filter main body, air inlet connecting pipe, the outside of the air inlet connecting pipe is provided with the mounting mechanism for the first sound filter and air pipe connection;The threaded sleeve is distributed with the positioning mechanism for limiting the threaded sleeve.The application is positioned by setting positioning mechanism, by the threaded sleeve is screwed to air pipe and air inlet connecting pipe, air outlet connecting pipe between, at this time, the threaded sleeve can be limited by inserting second positioning pin into annular clamping groove, to increase the stability of air pipe and air inlet connecting pipe, air outlet connecting pipe between connection, then can be made L-shaped connecting rod, threaded sleeve lose positioning simultaneously by connecting mechanism, to provide the convenience for subsequent disassembly, replacement of equipment.

This invention belongs to the field of medical device technology, specifically relating to a nebulized inhalation device for treating pediatric pneumonia. The device includes a main body connected to a spray tube; an oxygen supply section including an oxygen cylinder, the outlet of which is connected to the spray tube; a spray section including a compressor, the outlet of which is connected to a mixing tank, which is connected to the spray tube; a feeding section including a medication cartridge connected to a delivery tube, which is connected to the mixing tank; and an adjustment section including a guide rod with a sealing plug at its lower end, a lifting rod inside the guide rod, and a U-shaped plug fixedly connected to its lower end, positioned above the delivery tube. This invention enables rapid mixing of medication and oxygen with the medication mist, allows for quick assembly and disassembly of the medication cartridge, and allows for flexible control of the dynamic and directional release of a specific medication during treatment, ensuring the comfort of the child during treatment.

The invention discloses a production waste liquid online recovery device, and relates to the technical field of chemical waste liquid recovery, the production waste liquid online recovery device comprises a treatment box, a liquid inlet pipe is fixedly installed above the treatment box, a motor is fixedly installed above the treatment box, and a discharge pipe is fixedly installed on the side surface of the treatment box; a rotating shaft is fixedly installed at the output end of the motor, a filter plate is fixedly installed in the treatment box, a treatment device used for conducting biological membrane treatment on waste liquid is arranged in the treatment box, the treatment device comprises a recovery plate, and the recovery plate is fixedly installed on the inner wall of the treatment box. An oxygen cylinder is fixedly mounted on the circumferential surface of the rotating shaft, and a biological membrane plate is fixedly mounted on the circumferential surface of the oxygen cylinder, so that the waste liquid treatment efficiency can be improved, the cost can be reduced, the stability of the system can be enhanced, the environment adaptability is good, and the generation of secondary pollution can be reduced.

This application discloses a safe firing and sound-generating device for a prop gun used in film and television productions, relating to the field of film and television production. The device includes a gun casing with an internal combustion and explosion mechanism. This invention utilizes the combustion and explosion mechanism to control the proportion of gases from an oxygen cylinder and a butane cylinder to achieve a combustion and explosion effect. First, the power switch is turned on. The oxygen cylinder and butane cylinder, in a specific proportion, send gases through corresponding pipes to corresponding first, second, and third solenoid valves. Then, the first, second, and third solenoid valves send the gas through pipes to the combustion and explosion chamber, awaiting combustion and explosion. Pulling the trigger, under the action of the circuit board, controls the operation of the first solenoid valve, current converter, second solenoid valve, and third solenoid valve, causing the gas in the combustion and explosion chamber to ignite and explode, producing a certain amount of smoke. This device achieves the function of combustion and explosion, and the combustion and explosion effect can be continuous.

The utility model relates to the technical field of oxygen supply equipment, and discloses a hospital oxygen supply equipment oxygen flow difference monitoring alarm device which comprises a bottom plate, the front end and the rear end of the upper surface of the bottom plate are fixedly connected with a connecting frame and a storage box respectively, and a PLC control panel is arranged on the upper portion of the outer wall of the front end of the connecting frame. When the oxygen supply equipment for the hospital is used, a standby oxygen tank can be conveniently placed in advance through the storage groove, the buckle body and the buckle lock can be conveniently opened by opening the cover plate to take out the oxygen mask, the oxygen tank is opened by clamping the mask connector with the connector and clamping the oxygen output head with the oxygen conveying head, and then the oxygen mask can be taken out. The oxygen tanks, the hoses and the oxygen mask are integrated into the whole oxygen supply equipment, the self-locking universal wheels are conveniently pushed through the push rod to drive the whole oxygen supply equipment to be conveyed, and the oxygen supply equipment can be easily pushed to the side of the patient.

A sub surface terrestrial disaster safety device comprising a housing constructed from impact-resistant materials, a pressurized colored gas cylinder containing a neon-based mixture, an oxygen cylinder, an olfactory signal cylinder, and a micro controller. The micro controller includes sensors to distinguish between normal activities and disaster conditions, initiating a triggering mechanism upon detection. The triggering mechanism activates a permeation system controlling gas flow, creating a distinct surface mark for enhanced visibility to rescuers, while simultaneously providing emergency oxygen to the user. An alternative embodiment includes a communication module emitting a rescue signal with GPS coordinates. The device represents an advancement in safety technology, combining visibility enhancement, oxygen supply, and rescue signaling in a lightweight, durable design for individuals in disaster-prone environments.

The utility model discloses an integrated ammonia water and oxygen synchronous adding device which comprises a dosing tank, a condensed water dosing point, a main water supply dosing point, an oxygen bottle, a pressure reducing valve group, a needle-shaped regulating valve and a plurality of ammonia water adding pipelines, the ammonia water adding pipeline comprises a mixer, an ammonia water adding pump, a pressure release valve and a volume compensator; an outlet of the dosing tank is communicated with a condensed water dosing point and a main water supply dosing point sequentially through the mixer, the ammonia adding water pump, the pressure release valve and the volume compensator, and an outlet of the oxygen bottle is communicated with an inlet of the mixer sequentially through the pressure reducing valve group and the needle-shaped regulating valve. And meanwhile, the problem of pressure fluctuation caused by gaseous oxygenation compressibility is avoided.

The invention relates to a special membrane separation oxygen generation vehicle for emergency rescue, which is characterized in that a membrane separation oxygen supply unit is arranged in a carriage of a container body structure, a membrane assembly adopts a dendritic forked structure, and oxygen supply supporting facilities comprise a plurality of oxygen bottles and a plurality of oxygen bags; the oxygen bottle is in a pre-full state in the vehicle transportation process, and is connected with the membrane separation oxygen supply unit to inflate after being empty; the oxygen bag is stored in the vehicle transportation process, and is connected with the membrane separation oxygen supply unit to inflate before being used; the power supply system is arranged in the compartment and comprises a diesel generator and a lithium iron phosphate battery pack, the diesel generator is a main power supply, and the lithium iron phosphate battery pack is a redundant power supply with overload protection and short circuit protection; the intelligent automatic control system remotely monitors the state and adjusts operation parameters. The membrane separation oxygen generation vehicle special for emergency rescue has excellent long-distance moving capacity, can quickly respond and reach various complex rescue sites, and meets the requirement for large-scale oxygen supply.

The utility model discloses an oxygen cylinder status identification card, comprising a chuck body, a hanging ear is arranged on the side of the chuck body, a plurality of reading areas are evenly distributed in a fan shape along the center on the surface of one side of the chuck body, each of the reading areas includes a pressure value display area, a flow value display area and a usage time display area; a shield is arranged on the surface of the other side of the chuck body, a window is arranged on the shield, an indicator disk is rotatably connected between the shield and the chuck body, and a paddle is arranged on the edge of the indicator disk. The oxygen cylinder status identification card has the beneficial effect of being convenient and intuitive when reading the oxygen cylinder status.

The utility model relates to the technical field of oxygen bottle fixing equipment, and discloses a small oxygen bottle fixing device which comprises a first fixing ring, a second fixing ring, a third fixing ring, a connecting frame, a connecting rod, a connecting sleeve, a hanging handle and a support, and the first fixing ring, the second fixing ring and the third fixing ring are sequentially welded to the inner side of the connecting sleeve, the inner side of the connecting rod and the inner side of the connecting frame respectively. A connecting mechanism is arranged between the two sets of connecting rods or between the connecting rods and the connecting frame, the hanging handle is formed by extending rod bodies on the tops of the two sets of connecting sleeves, and the two sets of supports are welded to the symmetrical positions of the bottom of the third fixing ring. The fixing device for the small oxygen bottle has the advantages of being light (the weight is approximately equal to 0.55 kg), simple in material taking and low in cost, meanwhile, the three fixing rings, the connecting frames and the hanging handles are used, connectors are reduced, firmness and practicability are improved, the fixing efficiency of the small oxygen bottle in the transferring process is improved, and oxygen using safety of a patient in the transferring process is guaranteed.

The invention belongs to an aircraft engine oxygenating technology, and relates to an oxygenating system for oxygenating an engine, comprising: an oxygen bottle for storing oxygen; the oxygen bottle switch is a three-way valve; one end of the inflation mouthpiece is connected with an external air source, and the other end is connected with the left end of the oxygen bottle switch; the oxygen switch is connected between the right end of the oxygen bottle switch and the input end of the oxygen decompression device; the oxygen pressure reducing device is used for reducing pressure, and the output end of the oxygen pressure reducing device is connected to the engine through a pipeline.

The invention belongs to the technical field of aircraft propulsion system oxygen supplementation subsystem design, and particularly relates to an aircraft propulsion system oxygen supplementation subsystem oxygen cylinder oxygen carrying performance determination method which comprises the steps that 1, the oxygen demand mass m1 of engine air starting is calculated; 2, calculating the mass m2 of residual unavailable oxygen in the oxygen cylinder; 3, calculating the total mass m of oxygen required to be filled into the oxygen bottle according to the formula m = m1 + m2; 4, calculating the volume of the oxygen bottle needing to be filled under different environment temperatures and corresponding highest and lowest filling pressures; and step 5, comparing the volume of the oxygen bottle needing to be filled under different environment temperatures and corresponding highest and lowest filling pressures with the volume of the oxygen bottle, and determining whether the performance of the oxygen bottle carrying the oxygen can meet the requirement or not.

The invention provides a ship helium oxygen bottle cabin monitoring system. The ship helium oxygen bottle cabin monitoring system comprises a plurality of combustible gas probes and a system control box. A plurality of combustible gas probes are mounted in the helium-oxygen cabin, and a helium-oxygen bottle is placed in the helium-oxygen cabin; the system control box is connected with the combustible gas probe, detects the concentration of helium and oxygen in the helium-oxygen cabin through the combustible gas probe, judges whether the concentration of helium and oxygen reaches a first preset concentration or not, and sends the combustible gas probe to the system control box when the concentration of helium and oxygen in the helium-oxygen cabin reaches the first preset concentration; if yes, a fan is turned on to reduce the concentration of the gas in the helium-oxygen cabin to a second preset concentration. The combustible gas probe is arranged in the cabin, the overhigh solubility is reduced through the fan, and the technical problem that a helium oxygen bottle airtightness monitoring method is lacked in the prior art is solved.

The utility model discloses a sound absorption and noise reduction device of an oxygen generator, and relates to the technical field of oxygen generators. A charging port is formed in the right end of the machine shell; an air inlet bin is arranged at the upper end of the charging port; a reaction bin is arranged at the upper end of the air inlet bin; a connecting pipeline is arranged at the joint of the waste cylinder and the reaction bin and the joint of the oxygen cylinder and the reaction bin; a motor partition frame is arranged at the lower end of the reaction bin, sound insulation cotton is arranged at the outer end of the motor partition frame, a motor is arranged in the motor partition frame, an upper positioning frame and a lower positioning frame are arranged at the upper end and the lower end of the motor respectively, the upper positioning frame is arranged on the motor partition frame, and a buffer spring is arranged at the joint of the lower end of the lower positioning frame and the base. Most of kinetic energy generated when the motor vibrates can be absorbed through the buffer springs, then a small amount of residual noise is absorbed through the sound insulation cotton, and the situation that normal experience is affected due to the fact that noise is too large when the motor works is avoided.

The present invention discloses a miniaturized circulator, and relates to the technical field of electronic components. The present invention includes a dielectric substrate, a thin film circuit board, a copper plate, an alumina ceramic sheet, a yttrium iron garnet ferrite disc, and ST epoxy glue. The thin film circuit board is arranged on the top of the dielectric substrate, the copper plate is located on the top of the thin film circuit board, and the ferrite is located on the top of the copper plate. The preparation method of the miniaturized circulator includes the following steps: raw material selection, ferrite preparation, and circulator preparation. The present invention is a miniaturized circulator. The ST epoxy glue is used to bond the yttrium iron garnet ferrite disc to the alumina ceramic sheet, the copper plate to the thin film circuit board, and the ferrite to the copper plate. As the temperature rises, the viscosity between the various components of the circulator is normally distributed, which reflects the high temperature resistance of the ST epoxy glue, thereby improving the heat resistance of the circulator. The ferrite is prepared by the yttrium iron garnet ferrite disc and the alumina ceramic sheet, so that the circulator receiver is in a sensitive state.

The utility model relates to the technical field of medical instruments, and discloses a tuberculosis patient auxiliary respirator with a sputum suction function. The tuberculosis patient auxiliary respirator with the sputum suction function comprises a lower supporting plate, supporting columns, an upper supporting plate, an installation base, an oxygen bottle, a first oxygen conveying pipe, an auxiliary respirator body and an elastic band, the lower supporting plate is fixedly connected with the multiple supporting columns, the multiple supporting columns are jointly and fixedly connected with the upper supporting plate, the upper supporting plate is fixedly connected with the installation base, and the lower supporting plate is fixedly connected with the installation base. A mounting seat is fixedly connected to the lower supporting plate, an oxygen bottle is placed on the mounting seat, a first oxygen catheter is connected and communicated to the oxygen bottle, an auxiliary respirator body is placed on the upper supporting plate, one end of the first oxygen catheter is connected with the auxiliary respirator body, and two elastic bands are arranged on the upper supporting plate. When the air bag recovers to the original shape, suction force can be generated, sputum in the body of the patient is sucked out, it is avoided that the sputum is accumulated in the respiratory tract to affect breathing, and then aggravation of the illness state is prevented.

The utility model relates to the technical field of rescue equipment, and discloses a snowfield rescue breathing control device which comprises an oxygen mask, an oxygen pipe and an oxygen bottle, a flexible heating film is arranged on the inner surface of the oxygen mask, and a first controller and a GPS positioning module are arranged in the oxygen mask. A collecting shell is further arranged at the bottom of the oxygen mask body, absorption cotton is arranged in the collecting shell, two elastic bands are arranged on the rear side of the oxygen mask body, an oxygen spraying opening is further formed in the outer side of the oxygen mask body, and two micro fans are further arranged on the outer surface of the oxygen mask body. Wherein the two miniature fans are used for air inlet and air outlet respectively. According to the oxygen supply system, multiple anti-freezing design and the flexible solar panel power supply technology are adopted, stable operation of oxygen conveying in the low-temperature environment is guaranteed, meanwhile, long-time endurance is achieved, and compared with the prior art, the problems that an oxygen supply system is insufficient in reliability and endurance are solved.

The utility model relates to the field of gas supply, in particular to an oxygen supply system of an oxygen bottle. Comprising n oxygen bottles, n is larger than or equal to 4, the internal pressure of the n oxygen bottles is P, and P meets 0.2 Mpault; plt; the pressure is 1 Mpa; one oxygen bottle is connected with a gas outlet pipe, the gas outlet pipes of the n oxygen bottles are connected in parallel and then are connected with an industrial production oxygen consumption system through a connecting pipe, and the connecting pipe is provided with a flow meter. A plurality of oxygen bottles with low air pressure and low oxygen amount are connected in parallel and then are connected with the industrial production oxygen consumption system through the connecting pipes to supply oxygen, so that the oxygen supply capacity is greatly improved.

The invention discloses a breathing and oxygen generating dual-purpose machine, and relates to the technical field of auxiliary medical equipment. A breathing and oxygen generating dual-purpose machine comprises a shell, a sectional type touch display screen, an upper layer breathing machine, a humidifying box, an air filter and a lower layer oxygen generator, the sectional type touch display screen is installed on the inclined upper portion of the shell in an embedded mode, the upper layer breathing machine, the humidifying box and the air filter are arranged on the upper portion of a partition plate, and the lower layer oxygen generator is arranged on the lower portion of the partition plate. The side face of the humidifying box is connected with a telescopic gas output pipe. The all-in-one machine highly integrates the dual-core treatment function, the complexity of externally connecting an oxygen bottle and multiple equipment pipelines is omitted, space is saved, and the all-in-one machine is adaptive to the family environment; a finger pulse oxygen monitoring and closed-loop feedback system is built in, so that the oxygen concentration can be accurately adjusted to guarantee the treatment safety; smooth upgrading from oxygen therapy to oxygen therapy and respiratory support is supported, and waste caused by repeated purchase of machines is avoided; a unified control interface reduces the learning and operation cost and improves the compliance; compared with purchase of two devices, the device is more economical and has outstanding cost performance.

The invention discloses a water surface aircraft cavitation resistance reduction single hull model test device and method, and the device comprises an industrial oxygen cylinder which is provided with a pressure reducing valve, and the pressure reducing valve, a gas conveying hose, a front straight pipe, a mass flow controller and a rear straight pipe are connected in sequence. The rear straight pipe is connected to an air hole in the cavitation resistance reduction single hull model through another air conveying hose. The device is stable in blowing amount, fast in response and high in flow control precision.

The utility model relates to the technical field of oxygen bottles, and discloses a small oxygen bottle for family emergency, which comprises a support base and a bottle body, a positioning seat is slidably arranged at the bottom end of the support base, a positioning cavity is arranged in the middle of the positioning seat, protective silica gel is arranged in the positioning cavity, the bottom of the bottle body is arranged in the positioning cavity, and the bottom of the bottle body is fixedly connected with the support base. Supporting columns are rotatably arranged on the two sides of the positioning seat, moving columns are slidably arranged in the supporting columns, and a semi-annular positioning plate is rotatably arranged at the top ends of the moving columns; the bottle bodies are installed in the positioning cavities of the positioning seats, the positioning plates arranged on the two sides are matched to limit the positions of the bottle bodies, and meanwhile the moving wheels arranged at the bottom ends of the positioning seats can achieve rapid transfer of the bottle bodies. And when the bottle body is not used, the positioning seat can be moved to the supporting base, and the position of the positioning seat is limited in cooperation with the limiting frame, so that the position of the positioning seat is prevented from moving.

The present disclosure relates to a device for multi-system biomass and coal co-combustion to prepare a graphite sample. The device includes an oxygen cylinder, a tubular furnace, a transition assembly, a flue gas filter, an impurity gas absorption assembly, a transfer assembly, a raw sample oxidation assembly, and a vacuum pump. The oxygen cylinder is configured to provide oxygen for a combustion reaction. The tubular furnace is configured to provide heat for the combustion reaction. The transition assembly is configured to cool combustion flue gas. The flue gas filter is configured to remove particulate impurities from the combustion flue gas. The impurity gas absorption assembly is configured to remove impurity gas from the combustion flue gas. The transfer assembly is configured to remove moisture and the impurity gas from the combustion flue gas.