33results about How to "Improve oxygen purity" patented technology

The invention provides a zero-carbon emission three-cycle integral coal gasification fuel cell electricity generation system and method. The zero-carbon emission three-cycle integral coal gasificationfuel cell electricity generation system comprises a coal preparation unit, a gasification furnace, a waste heat boiler, a circulating gas compressor, a first gas-gas heater, a water-washing tower, asecond gas-gas heater, a carbonyl sulfur hydrolysis reactor, a desulfurization unit, a humidifier, an ejector, a fuel cell, a pure oxygen combustor, a gas turbine, an air compressor, a cathode heat regenerator, an air turbine, a waste heat boiler, a steam turbine, a first carbon dioxide compressor, a second carbon dioxide compressor, a cryogenic air separation unit and an oxygen compressor. According to the zero-carbon emission three-cycle integral coal gasification fuel cell electricity generation system, a three-cycle electricity generation system is formed, one serves as the fuel cell to generate electricity, the second is gas turbine to generate electricity, the third serves as a steam engine to generate electricity, energy gradient utilization is realized to the maximum extent from the two aspects of chemical energy and physical energy.

The therapeutic instrument includes electrolytic ozone generator, super pure water treater, oxygen-water mixing chamber and cleaning head. The super pure water treater has water outlet connected to the water inlet of the oxygen-water mixing chamber via pipes; the oxygen-water mixing chamber has air outlet, air (water) inlet and water outlet connected to the anode water inlet of the electrolytic ozone generator; the electrolytic ozone generator has anode water (air) outlet connected to the air (water) inlet of the oxygen-water mixing chamber and the cleaning head; and one circulating pump is connected in the pipeline between the electrolytic ozone generator and the oxygen-water mixing chamber. The present invention has high oxygen purity, high treating effect, reasonable structure and other advantages.

A novel molten aluminum electrolytic cell comprises an electrolytic cell body, with the bottom of the electrolytic cell having an inclination; a molten aluminum outlet pipe disposed on the undermost position of the bottom of the electrolytic cell; a gas outlet pipe disposed on the upper end of the other side of the electrolytic cell body; and a carbon dioxide purifier and a nitrogen gas purifier disposed on the gas outlet pipe, the carbon dioxide purifier being filled with calcium oxide and water, the nitrogen gas purifier being filled with an activated carbon adsorbent. Since the bottom of the electrolytic cell has an inclination, the molten aluminum obtained by electrolysis can flow into the molten aluminum outlet pipe along the inclination, without other power equipment; the carbon dioxide purifier and the nitrogen gas purifier result in high purity of oxygen gas. The invention has simple and convenient operation, increases the working continuity, and as a result, increases the production efficiency.

The invention discloses an air separation technology, and particularly relates to a vacuum pressure swing adsorption (VPSA) air separation oxygen enrichment technology. External air passes through a blast blower and a heat exchanger from an air inlet, and then enters two adsorption towers working alternately. The VPSA oxygen enrichment process comprises the following basic steps: adsorption, pressure release, vacuum desorption, pressure balancing and pressurizing. The air inlet is formed above the two adsorption towers, and is used for feeding air upwards and discharging air downwards; the adsorption towers are multi-stage air distributor adsorption towers; an upper airflow distributor is filled with an oxygen-nitrogen separation molecular sieve, and a lower airflow distributor is filled with activated aluminum oxide, so that the molecular sieve inside the tower is not easily screened or jet. Furthermore, a plurality of stages of airflow distributors are arranged inside one adsorption tower, so that even airflow distribution can be facilitated, the adsorption performance is improved, water, carbon dioxide, nitrogen and carbureted hydrogen in air are gradually absorbed, and the oxygen purity is high.

The invention discloses a neurosurgical intensive care unit, comprising a chassis, an oxygen tank, a sealing buckle, a plastic hose I, a plastic hose II, a threaded hose, a plastic hose III, a storage box, an air intake peristaltic pump, Pure humidifier, steam outlet pipe, exhaust peristaltic pump, gastrointestinal decompression machine, mobile device, gastrointestinal decompression cannula, connecting cannula, dredging tube, exhaust control valve and oxygen inhalation hood, the device of the present invention as a whole The structure is simple, the operation is convenient, the stability is good, and the reliability is high, which makes the working environment in the intensive care room clean and orderly, convenient for transportation, quick disassembly, high oxygen purity, and power-assisted oxygen in and out.

The invention discloses a device and a method for preparing high-purity nitrogen and low-purity oxygen. The device comprises a main heat exchanger, a rectification tower, two condensers, a supercooler and a turbine expander which are communicated through pipelines. The method includes that air in atmosphere enters the main heat exchanger for cooling after being compressed, filtered and purified, and then enters the rectification tower for separation, and high-purity nitrogen and oxygen-rich liquid air are obtained at the top and the bottom of the rectification tower respectively after separation; part of the high-purity nitrogen obtained is reheated through the main heat exchanger to normal temperature to be fed out for collection, and the rest of the high-purity nitrogen is condensed into liquid nitrogen through the condensers to serve as reflow liquid; two oxygen-rich gas products are obtained after the oxygen-rich liquid air is sequentially treated with the supercooler, the condensers, the expander and the main heat exchanger. By using the device and the method, the high-purity nitrogen can be obtained, and oxygen-rich products different in purity and pressure and high in oxygen purity can be obtained. The device can run in multiple working conditions, so that needs of the oxygen-rich products different in purity and pressure are met.

The invention belongs to the technical field of medical gas engineering, and particularly relates to an oxygen production and gas supply device and method for an operating room and an ICU. The oxygen production and gas supply device comprises at least two groups of separators which are sequentially connected in series, wherein the front stage is a pressure swing adsorption drying and purifying separator, whereas the rear stage is a zeolite membrane separator; at least one oxygen buffer tank, which is used for receiving oxygen output by the zeolite membrane separator, and a flow control valve and an automatic regulating valve are arranged at the outlet end of the oxygen buffer tank and used for controlling output enriched oxygen; a control assembly, and related control valves and connecting pipelines; and an interface which is used for receiving compressed air provided by a hospital, an interface of medical care oxygen, and an interface for outputting the oxygen to arespirator. According to the invention, the medical oxygen with the purity greater than or equal to 99.5% can be prepared; the device is free of power equipment, wherein a front-end oxygen source is directly introduced as emergency oxygen supply, fault safety strategy guidance is complete, and the reliability is extremely high. The device is simple to operate and can be used immediately when being powered on, and is convenient to repair.

The invention discloses a hydrogen production method, a hydrogen production system, and a circulating method and circulating device of hydrogen production electrolyte. The circulating method comprises an oxygen side electrolyte circulating method and/or a hydrogen side electrolyte circulating method. The oxygen side electrolyte circulating method comprises the following steps: carrying out gas-liquid separation on a gas-liquid mixture discharged from the oxygen side of an electrolytic bath to obtain an oxygen side separated electrolyte; carrying out depressurization gas-liquid separation on the oxygen side separated electrolyte to obtain oxygen side depressurization separated electrolyte; and boosting the oxygen side depressurization separated electrolyte and inputting the oxygen side depressurization separated electrolyte into an electrolytic bath. The hydrogen side electrolyte circulating method comprises the following steps: carrying out gas-liquid separation on a gas-liquid mixture discharged from the hydrogen side of the electrolytic bath to obtain a hydrogen side separated electrolyte; carrying out depressurization gas-liquid separation on the hydrogen side separated electrolyte to obtain a hydrogen side depressurization separation electrolyte; and boosting the hydrogen side depressurization separation electrolyte and inputting the electrolyte into the electrolytic cell. According to the circulating method, the purity of hydrogen and oxygen obtained by hydrogen production through water electrolysis can be improved, and high system pressure can also be guaranteed.

The invention provides a film framework for an oxygen production compressor. The film framework for the oxygen production compressor comprises a film framework, adsorption filtering films are adheredto the front surface and the back surface of the film framework, and the film framework comprises a frame, an air outlet pipe, a transverse support beam, a vertical support beam, a transverse framework and a vertical framework; the air outlet pipe is arranged on one side of the frame; the transverse support beam and the vertical support beam which are vertically crossed are arranged in the film framework; the transverse framework parallel to the transverse support beam is arranged on the front surface of the film framework; the vertical framework parallel to the vertical support beam is arranged on the back surface of the film framework; the cross sections of the transverse framework and the vertical framework are isosceles triangles; the adsorption filtering films are in contact with a line formed by the common vertexes of the transverse framework and the vertical framework, so that the adsorption filtering films cover the top surface formed by the transverse framework and the vertical framework, the contact range of the framework and the adsorption filtering films is greatly reduced, and the adsorption filtering effect is improved.

The invention discloses an automatic oxygen-production generator based on a PSA principle. The automatic oxygen-production generator comprises an oxygen tower I, an oxygen tower II, a base, a T-branchpipe I, a T-branch pipe II, a nitrogen outlet, an inlet, an oxygen outlet, a vacuum pump I, a vacuum pump II, an air inlet pipe I, an air inlet pipe II, an unidirectional solenoid valve I, an unidirectional solenoid valve II, an unidirectional solenoid valve III, a bidirectional solenoid valve I, a bidirectional solenoid valve II, an unidirectional solenoid valve IV, an unidirectional solenoid valve V, an unidirectional solenoid valve VI, an unidirectional solenoid valve VII, an unidirectional solenoid valve VIII , a pipe body I, and a pipe body II. The adsorption apparatus is used as a separate component and is connected with an upper housing and a lower housing of the oxygen tower, and a split design is designed, the problems of traditional maintenance and inconvenient use can be solved, the base is added to move the oxygen tower according to the requirement, and the normal operation of the oxygen production equipment cannot be influenced; and the automatic oxygen-production generator has the advantages of simple structure, reasonable design, convenient operation, low cost, convenient movement, and high oxygen purity and the like.