611 results about "Oxygen cylinder" patented technology

The present invention provides an improved oxygen filling apparatus adapted to provide oxygen to oxygen cylinders for use in connection with EMS services, ambulances, fire departments, hospitals, veterinary clinics and other services and applications. The present invention includes an oxygen generator unit having at least one molecular sieve, a plurality of pressure sensors, an oxygen sensor, and a PLC control unit with a touch sensitive graphical screen interface configured to selectively display current and historical operational parameters. The oxygen filling apparatus may be adapted for wall mounting and may include a data communications port for remote access, monitoring and troubleshooting.

The invention discloses a living environment control system in a coal mine underground movable lifesaving cabin, comprising a lift support system and an air-conditioning system, wherein the life support system is composed of an air circulating system, an air purification system and an oxygen regenerator; the air-conditioning system has a refrigerating system, a phase-change material cold accumulation system and a heat exchange system; and the invention has simple structure and convenient use, miners can enter into the cabin to start the living environment control system of the movable lifesaving cabin according to the requirements of operating instructions when a mining accident happens, and the lift support system adopts a proven aerospace and submarine oxygen regeneration principle to work stably and reliably. High pressure oxygen cylinder with explosion risk can be saved in the cabin, thus reducing the shockproof requirement on the cabin and greatly reducing the volume of a CO2 absorption device; and the refrigerating system in the air-conditioning system is characterized by adopting no transmission parts (vortex tube refrigeration) or less transmission parts (turbo-expander refrigerator) and having no power demand, thus avoiding depending on power in the traditional refrigeration mode.

The invention relates to a pretreatment method for measuring 14C abundance of an organic compound type sample. The method includes transferring carbon atoms in the organic compound into CO2 molecules through combustion, reacting CO2 with a NaOH solution to obtain a saturate NaHCO3 solution, heating the saturate NaHCO3 solution to obtain a saturate Na2CO3 solution, and adopting the saturate Na2CO3 solution for 14C abundance tests. The invention also provides a device used for the method. The device mainly comprises an oxygen cylinder, a nitrogen cylinder, a cold trap A, a three-way stopcock A, a combustion chamber, a cold trap B, a stone, a cold trap C, a three-way stopcock B, a conical flask, a cold trap D, a three-way stopcock C, a U-shaped gas sample collector, a three-way stopcock D, a vacuum gauge, a vacuometer, a piston D and a vacuum pump. On the basis of guaranteeing the measuring accuracy, the method largely simplifies the chemical treatment process, increases the time efficiency and reduced the cost.

A breathing apparatus for an aircraft crew member has a breathing mask provided with a demand regulator and connected to a source of breathing gas, such as a pressurized oxygen cylinder or preferably an OBOGS. The apparatus includes an individual buffer plenum specific to the mask on a line for feeding the regulator of the mask from the source. The volume of the plenum is sufficient to provide for at least two typical breaths of the mask wearer in succession. A non-return check valve is located between the plenum and the source.

The invention provides an abyssal environment simulation device suitable for testing material corrosion behavior. The abyssal environment simulation device comprises a high pressure autoclave, a hydrostatic pressure control system of simulated abyssal environment and a simulated environment monitoring control system. The hydrostatic pressure control system of simulated abyssal environment comprises a nitrogen cylinder, an oxygen cylinder, a water tank, a liquid supply tank and a hydraulic pump, artificial sea water is stored in the water tank, a water pump injects the artificial sea water into the liquid supply tank, the nitrogen cylinder and the oxygen cylinder are connected with the liquid supply tank, and the hydraulic pump is connected between the liquid supply tank and the high pressure autoclave so as to inject the artificial sea water meeting the dissolved oxygen content into the high pressure autoclave; the simulated environment monitoring control system comprises a compound sensor, a working electrode, a reference electrode, a temperature control device, a singlechip signal processor and a computer. The abyssal environment simulation device can simulate the characteristic environment parameters, such as the hydrostatic pressure, the environment temperature, the dissolved oxygen content, the pH value, the flow rate and the salinity, of the corrosive medium for the material in the abyssal environment, and is used for testing the related corrosion electrochemistry behaviors of the material in the simulated abyssal environment.

The invention discloses an in-vehicle environment monitoring system. The system is provided with an in-vehicle detection module, a vehicle door opening and closing detection module, an off-vehicle detection module, a controller module, a wireless transmission module and a braking module; when the vehicle door opening and closing detection module detects that a drive gets off a vehicle, the system starts to detect whether life bodies exist in the vehicle or not and the in-vehicle temperature and concentrations of carbon monoxide and carbon dioxide and detect concentrations of off-vehicle carbon monoxide, hydrocarbon and nitrogen oxide, when any in-vehicle parameter exceeds the standard, windows are opened through the breaking module, an exhaust fan is switched on through the braking module, an oxygen bottle is opened through the braking module, a vehicle engine is switched off, if any off-vehicle environmental index exceeds the standard, the windows are not opened or the opened windows are closed, and then the in-vehicle environment is effectively improved; when any in-vehicle parameter exceeds the standard, a signal is immediately sent to an external terminal through the wireless transmission module, and then terminal personnel are reminded to take rescue measures; by means of the modules, the in-vehicle environment can be improved in a reasonable mode, related personnel can be informed in time, and accidents are reduced.

The invention relates to a concentration-adjustable type anesthesia device for the anesthesia department and belongs to the technical field of medical instruments. The concentration-adjustable type anesthesia device for the anesthesia department comprises a power combined box, an anesthetic concentration adjustment box, an anesthesia mask box and an anesthetic supply box. A power box is arranged in the power combined box, an oxygen supply box is arranged on the right of the power box, a charging battery is arranged inside the power box, a charging port is arranged on the left side of the power box, a pressure pump starting knob is arranged on the upper side of the power box, a small oxygen bottle is arranged inside the oxygen supply box, and an oxygen box dustproof cover is arranged on the upper side of the oxygen supply box. A medical pressure pump is arranged on the upper side of the power combined box, a pushing piston is arranged inside the medical pressure pump, a lifting stand column is arranged on the upper side of the pushing piston, and a device pushing rod is arranged on the lifting stand column. The concentration-adjustable type anesthesia device for the anesthesia department is complete in function, convenient to use, easy and convenient to operate, and capable of saving time and labor and reducing working difficulty for medical workers in the process of general anesthesia or local anesthesia.

The invention discloses a rescue face mask and relates to a medical appliance. The rescue face mask consists of a lining gasket fit with the mouth and nose, a cover, an oxygen adaptor with a cap, and an air inlet pipe part, wherein the air inlet pipe part consists of an upper pipe and a lower pipe; a filtering screen is arranged in the upper pipe, and an exhaust hole is arranged in the lower pipe; and a one-way valve comprises one-way valve plates of which part is connected and fixed between the upper and lower pipes and the left part is in a free state. When worn by a patient, the face mask is adhered onto the mouth and nose on faces and fastened by elastic belts; and the face mask can be connected with an oxygen cylinder for allowing the patient to indraft oxygen independently, or connected with a breathing machine for performing manual rescue or used by medical personnel to perform mouth-to-mouth breathing rescue without interaction, and the three kinds of operation can be performed alternatively or synchronously. The rescue face mask can improve rescue efficiency, prevent large-particle materials from entering the mouth of patients, and has the characteristics of reasonable design, use sanitation and convenience, and the like.

The invention relates to a carbonized wood production process, which comprises the following steps of: 1) cutting and flattening wood; 2) conducting flame jet carbonization treatment to the surface of the wood by using a flame jet device; and 3) grinding the surface of the carbonized wood and removing the carbonized part on the surface of the wood. The flame jet device comprises an oxygen cylinder and a jet gun. By using the characteristics that the texture of the wood is loose and soft and the hardness is different, and by using the oxygen jet gun to jet flames onto the surface of the wood, the carbonization degree of the loose and soft part is high, the carbonization degree of the hard part is low and the surface of the wood has stereoscopic natural textures after grinding. The carbonized wood production process has the advantages of simple carbonization method, easiness in operation, simple equipment and low use cost.

The invention discloses a disaster first aid transfer bed based on different road conditions and staircases, which includes an upper bed frame and a bed chassis. The bed chassis is provided with a walking device at the bottom; the upper bed frame is provided with a titanium alloy bed plate, the bet plate comprises a bed plate body and bedside plates, and the bedside plates is foldably or detachably arrange on both sides of the bed plate body through hinges or latches; an accumulator and a motor are arranged under the bed plate, wherein the motor is connected with the accumulator; the motor isdrivingly connected with the traveling device, the motor is connected to the controller, a telescopic push rod is arranged at that lower side of the upper bed frame, a telescopic fold connecting rod is arranged at the front half of the upper bed frame, the telescopic folding connected rod is connected with the mesa, an oxygen cylinder frame is arranged at the lower side of the upper bed frame, a circular hole is arranged at the head of the bed plate body, an infusion frame is arranged at the head of the bed on the upper bed frame, and an infusion fixing protective sleeve is arranged outside the infusion frame. The first aid transfer bed of the invention is used for first aid transfer of the wounded in disasters, so as to improve the transfer speed, save manpower, monitor and cure immediately during rescue, and improve the rescue effect. The first aid transfer bed of the invention is used for first aid transfer of the wounded in disasters.

The invention discloses a portable-type life support system, comprising a general stretcher and an additional device arranged on the general stretcher by a supporting bracket; the additional device comprises a bottom plate and a holding cavity arranged on the bottom plate. The supporting bracket comprises a folding bracket which is formed by articulating a plurality of strip materials and is provided with four lower end parts, and the four lower end parts of the folding bracket are connected with an L-shaped locking hook by a lashing rotational hand. The bottom part of the additional device is provided with attachments such as a rolling wheel and a pulling handle. First-aid medical equipment such as an oxygen bottle, the additional device, a suction apparatus, a monitor, an infusion pump and a comprehensive first-aid handling bag and the like are arranged in the holding cavity. The system integrates casualty transportation and rescue operation into one body, has an advanced life support function and is equal to ICU; the system has small volume, light weight, strong flexibility, and is very suitable for extreme areas and narrow space.

The invention relates to a method for manufacturing a cold-drawing gas cylinder tube for a medical oxygen cylinder. The method comprises the following steps of: (1) performing incoming inspection on a hot-rolling raw material tube; (2) performing acid cleaning and lubrication on the raw material tube; (3) performing cold drawing for the first pass; (4) performing annealing on a product tube; (5) performing acid cleaning and lubrication on the product tube; (6) performing cold drawing for the second pass; (7) performing annealing on the product tube; (8) performing acid cleaning and lubrication on the product tube; and (9) performing cold drawing for the finished product pass. The cold-drawing gas cylinder tube manufactured by the method has a thick and uniform wall and high physical and chemical properties, and the product is safe and reliable and is exclusively produced for the first time at home. All performance of the steel tube comprehensively meets technical requirements of users, and the cold-drawing gas cylinder tube has an extensive market prospect.

A valve apparatus, and combined valve-regulator apparatus, for safely regulating the flow of combustible gases such as oxygen.

The invention discloses a large-area contact type machining device for fused quartz by plasma discharge machining, relates to a plasma machining device, and aims at solving the problems of the relatively low activity and low removal rate of reaction ions due to a high electrode temperature and a short machining time during the present plasma machining process. According to the invention, the upper end surface of an air guide plate and the upper end surface of a workpiece clamping plate on an end part are located in the same horizontal plane; a moulding electrode is arranged above a workpiece groove; a discharge space between two electrodes is formed on the lower end surface of the moulding electrode and the upper end surface of the workpiece groove; a cavity between an upper flow guide body and a lower flow guide body is a gas guide cavity; gas inlet holes are formed on the end surfaces of the gas inlet ends of the upper flow guide body and the lower flow guide body, and the two gas inlet holes are communicated with a gas mixing box; a helium gas cylinder, a carbon tetrafluoride gas cylinder and an oxygen cylinder are connected with the gas mixing box via a helium flow meter, a tetrafluoride flow meter and an oxygen flow meter respectively; a water pump is connected with a lower cooling channel and an upper cooling channel; and a radiofrequency power supply is connected with a high electrode and a base plate. The large-area contact type machining device disclosed by the invention is used for plasma machining.

The invention discloses a safety helmet for self-rescue and escape, and aims to provide a safety helmet capable of supplying oxygen to people when an accident occurs in a mine. There is a buffer gap between the cap shell and the cap liner, and the safety helmet for self-rescue and escape also includes a mask that is connected to the cap shell and can be folded in the cap shell. The airtight breathing part that can seal the mouth and the nose of a person is provided with an oxygen delivery tube that can be communicated with the oxygen bottle and an exhalation hose for exhaling gas. The invention can be used in various mine operations.

A middle and small-sized mining expansion type mobile escape capsule consists of a multi-sections split capsule comprising a transition capsule (1), an air return capsule (2), survival capsules (3),an electronic control capsule (4), an escape capsule (5) and an equipment capsule (6). Each capsule body is a vehicle type structure, and lengths and connection modes of the capsule bodies are identical. An air blowing device (8) and a mobile toilet bowl (9) are mounted in the transition capsule, a box type seat (10), an oxygen supply self-control box, an oxygen cylinder, a pressurizing self-control box, a gas monitoring control box and the like are mounted in each basic capsule, a one-way pressure release valve (11) is arranged on a wall of the air return capsule, an escape door (19) and an observation window (20) are disposed on a wall of the escape capsule, and a monitoring hole (21) is arranged on a wall of the electronic control capsule. The escape capsule is simple in structure and convenient in assembly, disassembly and movement, is particularly controllable in volume, each survival capsule can accommodate a certain amount of people, and the amount of the survival capsules can be increased or reduced on the basis of the basic capsules, so that requirements of different hedge people numbers can be met.

The invention discloses a moistening respiratory nursing device for a patient subjected to tracheotomy. The moistening respiratory nursing device comprises a bottom plate, a moistening medicine box is arranged at one end of the upper surface of the bottom plate, a PLC (programmable logic controller) is arranged on the front side of the moistening medicine box, the moistening medicine box is internally provided with an inner cavity, and heating tubes are arranged at positions, close to the bottom face, of the lateral side of the inner cavity of the medicine box. A filter is arranged on the upper surface of the moistening medicine box, and the lower surface of the filter is connected with the inner cavity of the medicine box through a pipeline. The moistening respiratory nursing device is reasonable in structure and high in practicality; by arrangement of a humidity sensor and a temperature sensor in an oxygen chamber, obtained temperature and humidity data are more accurate, and accordingly temperature and humidity regulation of respiratory oxygen can be realized through the PLC to benefit recovery of the patient; oxygen can be delivered to the patient through a connected oxygen cylinder, and convenience in moving and braking of the device is achieved by the aid of universal wheels and a brake. Therefore, the moistening respiratory nursing device is suitable for popularization and utilization.

The invention relates to a rescue device and a rescue method based on an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. The rescue device comprises a rotor wing, a fuselage, a control system, a loading platform, a support, infrared equipment, a camera, a talkback device, a gas detector, an oxygen cylinder and an oxygen mask. A device with a camera shooting and monitoring system and a talkback system is carried on the unmanned aerial vehicle. A trapped person in a narrow and small space are rescued under the operation of the unmanned aerial vehicle, the accurate position of the trapped person can be found faster and more accurately through infrared survey, and the wasted time is shortened for rescue; and communication can be conducted on the trapped person to relieve the mental stress while the rescue environment is surveyed, not only can the position of the trapped person be known to determine a rescue scheme, but also the rescue scheme can be formulated jointly with the trapped person. Food and necessities are provided through a loading device, and the precious time is added for rescue.

The invention relates to a manufacturing method of a cold-drawing seamless steel tube for oxygen supplying bottles, comprising the following steps: (1) inspection; (2) acid washing; (3) phosphate treatment; (4) soap treatment; (5) cold drawing; (6) straightening; (7) inspections on the quality, the wall thickness, the outer diameter and the flexibility of the inner surface and the outer surface of the seamless steel tube; (8) ultrasonic flaw detection; (9) denseness test; and (10) saw cutting. The oxygen supplying bottles manufactured by the method has the advantages of simple structure, small size, large capacity and long oxygen supplying time; in particular for the cold-drawing seamless steel tube for the oxygen supplying bottles, which adopts the material of 30CrMo and the specification of phi 178*4.8 mm is used as a representative variety, the product quality fully meets the technical requirements and is in the leading level in the same domestic industry and comprehensively meets the standard of the Seamless Steel Tubes for Air Bottles GB18248-2008 and some stricter quality requirements of users.

The invention relates to a calibrating device of an oxygen breathing apparatus for emergency and disaster releasing in coal industry and the like, in particular to a universal calibrator of the oxygen breathing apparatus. The calibrator of the oxygen breathing apparatus comprises a box body, wherein a box cover is hinged on the side part of the box body; a panel is arranged in the box body; and a groove is formed in the right side of the panel in the box body. The calibrator is characterized in that: a manual air pump and an oxygen pressure meter which is provided with a connector of an oxygen cylinder are arranged in the groove; a digital pressure meter displayer, an electronic gas flow meter displayer, an electronic timer, a power supply switch, a charging indicating lamp, a zero potentiometer, a closing valve pull rod and a switching valve pull rod are arranged on the surface of the panel; an air outlet two-way pipe and an air inlet two-way pipe pass through the surface of the panel; the air outlet two-way pipe is sequentially connected with a switching valve and a tee pipe which are arranged on the lower part of the panel; the air inlet two-way pipe is connected with the tee pipe on the lower part of the panel; and the other end of the tee pipe is connected with a digital pressure sensor through a pipe. The calibrator is simple in structure and is convenient to operate.

The invention relates to a self-control oxygen-charging fermentation method for black tea. The self-control oxygen-charging fermentation method for black tea comprises the following processes of: (1) deblocking tea leaves subjected to the processes of withering, kneading and twisting for screening; (b) charging the screened tea leaves into a fermenting chamber for fermenting; (c) connecting an exhaust pipe connected with an oxygen bottle into the fermenting chamber; (d) charging oxygen into the fermenting chamber so that the tea leaves are fully oxidized; and (e) after fully oxidizing the tea leaves in the fermenting chamber for 1.5-2.5 hours, taking out for drying. By adopting the self-control oxygen-charging fermentation method for black tea to process the black tea, the tea leaves are fully fermented, the quality is improved, the value of the tea leaves is also improved subsequently, and the advantages of saving labor, time and power, improving the benefits and greatly improving economic benefits are achieved.