15results about How to "Guaranteed oxygen concentration" patented technology

The invention belongs to the technical field of medical instruments, and particularly relates to a molecular sieve oxygen generation system and an oxygen generation method. The system comprises an air compressor, a radiator, a gas-water separator and an air tank which are sequentially connected and then is divided into two paths, one path enters an instrument gas tank through a one-way valve, the other path enters an oxygen generation main machine, and the oxygen generation main machine comprises an air inlet loop and an exhaust loop which are arranged before entering two adsorption towers with the same structure, and a pressure equalizing loop and a cleaning loop which are arranged after entering the two adsorption towers; the device is characterized in that an adsorbent and a molecular sieve are placed in each adsorption tower, the adsorbent is located on the lower portion of the adsorption tower, the molecular sieve is located on the upper portion of the adsorption tower, the adsorbent is used for adsorbing moisture in air entering the adsorption tower so as to remove water, and the cleaning loop is provided with a cleaning throttling hole. The number of valves in the oxygen generating main machine and oxygen generating steps are reduced while the oxygen concentration is guaranteed, so that the structure of the oxygen generating main machine is more compact; the all-in-one design of the oxygen generation system is facilitated, and the oxygen generation effect of the molecular sieve is further improved.

The invention belongs to the technical field of medical materials, and particularly provides a 3D printing bone repair material and a preparation method thereof.The 3D printing bone repair material is prepared from PCL / MnO2 composite microspheres and SiN, PCL has good biocompatibility and biodegradability, the mechanical performance and bone induction performance of the 3D printing bone repair material are enhanced due to addition of SiN, and the 3D printing bone repair material has a good application prospect. MnO2 can release oxygen and manganese ions, and the manganese ions can promote calcium deposition, jointly promote cell infiltration, osteogenic differentiation and matrix mineralization, promote bone precursor cell proliferation, accelerate bone defect repair and promote bone regeneration, so that the bone regeneration rate is increased, and the bone regeneration rate is increased. The prepared 3D printing bone repair material has good mechanical performance, biocompatibility, antibacterial property and biodegradability, cell proliferation is promoted, and bone repair and bone regeneration are accelerated.

The invention relates to the technical field of waste resource utilization, and discloses a coupling type system and method for preparing copper powder through kitchen waste gasification-hydro-thermal synthesis, and a coupling reaction device in the system comprises a supercritical water gasification module and a supercritical hydro-thermal synthesis module which are sequentially arranged in a sleeving mode from outside to inside; a palladium membrane is arranged between the supercritical water gasification module and the supercritical hydrothermal synthesis module; the outer side wall of the supercritical water gasification module is coated with a heating unit; according to the invention, a supercritical water gasification reactor and a supercritical hydrothermal synthesis reactor are integrated together through a sleeve structure; pure hydrogen is separated from gasification products in the supercritical water gasification module through a palladium membrane, an expensive chemical reducing agent is replaced, effective utilization of kitchen waste slurry is effectively improved, and the utilization rate of conversion from waste to resources is achieved. And meanwhile, pure hydrogen is separated by using a palladium membrane and enters a supercritical hydrothermal synthesis module, so that introduction of impurities is avoided, and preparation of high-purity superfine copper powder can be realized.

The utility model belongs to the technical field of thermoelectric hydrogen-oxygen co-supply, and aims to provide a thermoelectric hydrogen-oxygen co-supply system and a working method thereof. The thermoelectric hydrogen-oxygen combined supply system comprises a photovoltaic power generation system, a hydrogen production system, a high-temperature proton exchange membrane fuel cell system and a heat collection system, the working method of the thermoelectric hydrogen-oxygen combined supply system comprises a daytime working method and a night working method. According to the utility model, combined supply of heat, electricity and hydrogen and oxygen for users in high-altitude areas can be realized, the stability is strong, the safety is high, the photovoltaic power generation system can be utilized to generate power in the daytime with illumination resources, and the electricity demand of buildings in the daytime can be preferably met; secondly, electrolyzed water is converted into hydrogen energy and oxygen resources to be stored; under the condition that a certain hydrogen storage scale is reached, redundant photovoltaic power is used for heating a phase change heat storage material, heat is absorbed to generate phase change to store heat, and finally the residual power is stored in an electrochemical energy storage mode.

The utility model discloses a dispersion oxygen generator and system, which comprises a power supply unit, a control unit connected with the power supply unit, an oxygen generation unit and a compressor, the compressor extracts gas through a gas taking unit and provides pressure gas; and the oxygen generation unit is used for receiving the pressure gas to prepare oxygen and dispersing the oxygen into the aerobic space. According to the technical scheme, gas is completely or partially extracted from the aerobic space at the same time, so that circulating gas exchange in the aerobic space is ensured, harmful gas such as carbon dioxide is prevented from being accumulated, in addition, the oxygen concentration in the aerobic space is prevented from being continuously accumulated and increased, and the oxygen concentration in the aerobic space is within a safe interval.

The utility model discloses an oxygen-enriched air supply device in an automobile, which comprises an oxygen-enriched membrane component, the air outlet end of the oxygen-enriched membrane component is connected with a negative pressure pump, the air outlet end of the negative pressure pump is connected with an exhaust mechanism, one side of the oxygen-enriched membrane component is provided with a monitoring control mechanism, and the oxygen-enriched membrane component comprises an air outlet seat. A fan is connected to the end of the air outlet seat, an air outlet is formed in the other end of the air outlet seat, a plurality of vertical adjusting air plates are rotatably connected to the interior of the air outlet seat, and first rotating shafts are fixedly connected to one ends of the vertical adjusting air plates. According to the oxygen-enriched air supply device in the automobile, oxygen-enriched air is generated through the oxygen-enriched membrane assembly, the first motor drives the vertical adjusting air plate to rotate for vertical adjustment, the second motor drives the transverse adjusting air plate to rotate for transverse adjustment, the oxygen-enriched air is blown to a driver, the oxygen concentration in the automobile is effectively improved, and driving fatigue is relieved.

The utility model relates to a breathing mask for digestive endoscopy under painless anesthesia, and belongs to the technical field of medical equipment. In order to solve the problems that an existing breathing mask cannot conduct respiratory tract anesthesia and carbon dioxide retention occurs, a purification part is arranged in an inner cavity of a mask body and comprises an outer layer and an inner filler wrapped in the outer layer, and the outer layer is connected with the mask body; carbon dioxide exhaled by a patient to the interior of the cavity is adsorbed through the inner filler, the phenomenon of carbon dioxide retention of the patient is effectively avoided, the anesthesia oxygen conveying part is arranged at the top of the mask body, the first pipe head of the conveying pipe is connected with an oxygen machine or a breathing machine, and the second pipe head of the conveying pipe is connected with an anesthesia machine; and painless anesthesia can be synchronously carried out on a patient in the oxygen inhalation process, and digestive endoscopy can be carried out on the patient in a painless state. The device is simple in structure and convenient to operate, the operation process is safer and more efficient, and the device has a great clinical application prospect.

The invention belongs to the technical field of medical equipment, and particularly relates to an oxygen inhalation mask. Comprising an outer-layer mask body and an inner-layer mask body, the inner-layer mask body is located on the inner side of the outer-layer mask body, and an oxygen temporary storage space is formed between the inner-layer mask body and the outer-layer mask body; an oxygen inlet is formed in the outer-layer mask body, the oxygen inlet is used for being connected with an oxygen generator, a telescopic jacket is arranged on the inner side of the inner-layer mask body, the telescopic jacket is communicated with the oxygen temporary storage space, and the oxygen inlet is also communicated with the oxygen temporary storage space; a ventilation assembly is arranged on the inner side of the inner-layer mask body, one end of the ventilation assembly communicates with the oxygen temporary storage space, and the other end of the ventilation assembly is used for being placed in the nasal cavity of the human body. And a waste gas port is formed in the inner-layer cover body and / or the outer-layer cover body. Oxygen can be directly fed into the nasal cavity of the human body, the human body can easily inhale sufficient oxygen, and the oxygen concentration provided by the oxygen inhalation mask can be guaranteed.

This application belongs to the technical field of medical devices and discloses an airflow switching rotary valve and an oxygen generator. The airflow switching rotary valve includes a mounting base and a moving valve core. The mounting base has a distribution chamber and an air inlet communicating with the distribution chamber. The moving valve core is located inside the distribution chamber and has a moving plate sealing surface. The moving plate sealing surface is provided with an exhaust chamber. The moving valve core is provided with an air inlet channel located on the side of the exhaust chamber. The outer peripheral surface of the moving valve core is provided with multiple contact positions. The contact positions contact the cavity wall of the distribution chamber to restrict the relative movement of the moving valve core with the mounting base in its own radial direction and to restrict the deflection of the moving valve core in its own axial direction. This ensures the sealing performance between the moving valve core and the stationary valve core and reduces the manufacturing cost of the airflow switching rotary valve.

The utility model discloses an algae culture device, which belongs to the technical field of algae culture and comprises a culture box, a liquid supplementing pipe communicated with the top of the culture box, a liquid supplementing pump communicated with the other end of the liquid supplementing pipe, a nutrient solution box arranged outside the liquid supplementing pump, a circulating water pipe communicated with a circulating water pump, the other end of the circulating water pipe is communicated with the top of the other side of the incubator to form circulation; an algae feeding port is formed in the top of the incubator, a piston is arranged on the algae feeding port, an aeration assembly is arranged at the bottom of the incubator, and a plurality of light supplementing lamps are fixedly connected to the top of the incubator; a discharge hole is formed in the bottom of the incubator; a blue-green algae sensor is fixedly connected to the top of the incubator and extends into the incubator. In the application, the illumination, running water environment, oxygen concentration and the like of the growth and reproduction of the algae can be conveniently controlled manually, so that the algae culture environment is more real and controllable; meanwhile, algae detection can be carried out in a sealed environment, so that internal pollution is avoided.

The utility model provides a water quality blending device for fry culture, including culture pond, dosing mechanism, control subassembly, sensing subassembly and aeration mechanism, control subassembly is provided below dosing mechanism, culture pond is provided below control subassembly, sensing subassembly is provided on the inner wall of culture pond, and aeration mechanism is provided on the inner wall of culture pond. The control panel is arranged on the outer wall of the culture pond and electrically connected with the sensing assembly, the aeration mechanism, the electric sliding table and the electromagnetic plate, the control assembly can select any one or more groups of agent bottles to conduct agent feeding at the same time according to the problem fed back by the sensing assembly, automatic agent feeding is achieved, and blending of the culture pond is achieved; therefore, the pH value and dissolved oxygen of the water body are adjusted, ammonia nitrogen and residual chlorine are removed, the aquaculture water body is stable, and a proper aquaculture water quality environment is provided.

The utility model discloses a catalytic burner for organic matters in a solar photovoltaic panel, which comprises a bottom plate, and the top of the bottom plate is fixedly connected with a pyrolyzing furnace body; the oxygen limiting mechanism comprises a nitrogen cylinder, a barometer, an air supply pipe, an air inlet assembly and an air outlet assembly; the nitrogen cylinder is fixed to the bottom plate, the barometer is fixed to a gas outlet of the nitrogen cylinder, one end of the gas supply pipe is fixedly connected with the end of the nitrogen cylinder, the other end of the gas supply pipe penetrates through the side wall of the pyrolyzing furnace body and is fixedly connected with the pyrolyzing furnace body, and the gas inlet assembly is fixed to one side of the lower end of the side wall of the pyrolyzing furnace body. And the gas outlet assembly is fixed on the other side of the lower end of the side wall of the pyrolyzing furnace body. The oxygen concentration in the pyrolyzing furnace body is kept in an anoxic state all the time, organic matter is decomposed and combusted to generate carbon black, combustible gas can be collected, and meanwhile poisonous gas is prevented from leaking into air.

The invention discloses an automatic control system of an oxygen generation device. The automatic control system comprises an oxygen concentration analysis detector, an oxygen analysis instrument 12V power module, an oxygen candle ignition 24V power module, an isolator, a PLC (Programmable Logic Controller) module and a touch screen, the oxygen concentration analysis detector is powered by a 12V power supply module of the oxygen analysis instrument; the isolator receives concentration information collected by the oxygen concentration analysis detector and transmits the concentration information to the PLC module; the oxygen candle ignition 24V power supply module is electrically connected with the PLC module and is used for controlling an oxygen candle in the oxygen generation device to ignite; the touch screen is powered by the PLC module; the oxygen concentration analysis detector detects the oxygen concentration in the closed space in real time, when the oxygen concentration is lower than a set concentration value, the PLC module controls the oxygen candle to ignite, and meanwhile whether the oxygen candle continues to be controlled to ignite or not is determined according to the size relation between the oxygen concentration in the closed space and the oxygen concentration during ignition in the oxygen release process of the oxygen candle. The oxygen concentration in the closed space is higher than the oxygen concentration during ignition. The oxygen supply is more reliable, and the safety is higher.

The utility model discloses a ventilation system capable of reducing gas concentration. The ventilation system comprises a first gas channel, a second gas channel, a branch pipe and a gas absorbent spraying system. According to the utility model, the first air passage and the second air passage are designed, so that air inside and outside the roadway can circularly flow, and when the gas concentration in the roadway is relatively high, one part of the second air passage and the branch pipe form internal circulation of roadway gas; meanwhile, the gas absorbent spraying system sprays vaporific gas absorbent at the second gas outlet end of the branch pipe, gas in the roadway is efficiently and rapidly absorbed, fresh air can be continuously conveyed into the roadway through the first gas channel without being affected, and the oxygen concentration in the roadway is guaranteed.

The invention relates to the field of fermentation tanks, and discloses a residue filtering device of a biological fermentation tank, which comprises a fermentation tank body, a feed pipe, a stirring device, a residue filtering device, a ventilation device, a discharge pipe, a valve and a controller, the stirring device is arranged in the fermentation tank body, the residue filtering device is arranged below the stirring device, and the ventilation device is arranged below the discharge pipe. According to the present invention, the residue filtering device and the ventilation device interact and support each other, such that the odor and the foreign odor generated during the fermentation process can be timely discharged out of the tank, the fresh air is supplemented, and the fermentation environment is maintained to be fresh and clean so as to maintain the appropriate oxygen concentration in the tank, such that the fermentation efficiency is improved, and the energy consumption is reduced. Furthermore, bad flavor components in the fermented product are reduced, and the taste and the quality of the product are improved.