479 results about "Oxygen tank" patented technology

The embodiment of the invention provides a liquid nitrogen heating, vaporizing and pressurizing system and a liquid rocket. The liquid nitrogen heating, vaporizing and pressurizing system comprises an oxygen tank, a fuel tank, a liquid nitrogen tank, a liquid nitrogen pump, a cavitation pipe, a liquid nitrogen heater and a liquid nitrogen tank pressurizing pipe. An oxygen tank pressurizing pipe is arranged at the top of the oxygen tank; a fuel tank pressurizing pipe is arranged at the top of the fuel tank; the liquid nitrogen box is arranged in the oxygen box, and the bottom of the liquid nitrogen box is connected with a liquid nitrogen conveying pipe; the liquid nitrogen pump is arranged on the liquid nitrogen conveying pipe; the cavitation pipe is used for stabilizing the liquid nitrogen conveying flow; the liquid nitrogen heater is used for heating liquid nitrogen conveyed by the liquid nitrogen pump into high-temperature nitrogen, the heated nitrogen is used for pressurizing the oxygen tank, the fuel tank and the liquid nitrogen tank at the same time, and the liquid nitrogen heater is connected with the oxygen tank pressurizing pipe and the fuel tank pressurizing pipe. According to the liquid nitrogen heating, vaporizing and pressurizing system, the integrated pressurizing technology is adopted, the pressurizing system is simplified through the technology, meanwhile, the cost and weight of the pressurizing system are reduced through liquid nitrogen heating, vaporizing and pressurizing, and the safety and stability of the pressurizing system are improved.

The utility model belongs to the technical field of oxygen filling, and particularly relates to an oxygen filling and leakage detecting integrated device which is used for filling oxygen into an oxygen bottle and comprises an inflation assembly, a protection assembly and a leakage-proof detecting assembly, the inflation assembly is detachably connected with the oxygen bottle so that oxygen can be filled into the oxygen bottle, and the protection assembly is detachably connected with the leakage-proof detecting assembly. The protection assembly is used for carrying out leakage-proof protection on the joint of the inflation assembly and the oxygen bottle, the leakage-proof detection assembly is used for detecting whether the protection assembly and the oxygen bottle leak air or not, if air leaks, the inflation assembly stops inflation, and otherwise, inflation is continuously carried out till the oxygen bottle is fully filled. According to the utility model, air leakage can be prevented in the process of inflating the oxygen bottle.

The invention relates to the technical field of dust combustion, and provides a dust explosion combustion experiment device in order to solve the problems that an existing dust explosion combustion experiment device is insufficient in parameter control precision, and an experiment multi-focus single variable lacks a dust removing mechanism and a safety protection measure, and the dust explosion combustion experiment device comprises an experiment table which is provided with a power chamber and an equipment chamber; one side of the experiment table is hinged with an access door, two sides of the top of the experiment table are provided with conveying main pipes extending to the equipment chamber, a power supply assembly is arranged in the electric power chamber; the protective shell assembly comprises an outer shell and an inner shell; a plurality of exhaust pipes are arranged at the top of the inner shell; the dust generation assembly comprises a plurality of dust storage tanks and an air compressor; the ignition control assembly comprises a pulse igniter, a flame detection feedback circuit and an ignition head; the environment adjusting assembly comprises a box body, an oxygen tank and a humidifier, wherein the oxygen tank and the humidifier are arranged in the box body. The device has the advantages that the dust concentration is accurately regulated and controlled, the environmental parameters are dynamically coupled and controlled, dust residues are rapidly removed, and the experiment safety is high.

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 utility model belongs to the technical field of water treatment, and discloses a double-circulation dielectric barrier discharge water treatment device which comprises a grounding electrode cooling tank, a water pump, a dielectric barrier discharge system, a high-voltage power supply, an internal circulation flowmeter, a fan, a water treatment tank, an air pressure balance tank, a freezing dryer, an external circulation flowmeter, an automatic air pressure supply valve, an oxygen tank and an aeration disc. The double-circulation dielectric barrier discharge water treatment device provided by the utility model can be used for treating various organic wastewater such as industrial wastewater, domestic wastewater and landfill leachate, and has the advantages of simple equipment, stable operation, low energy consumption, high treatment efficiency, no secondary pollution and the like.

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 discloses a multifunctional novel air conditioning control panel system and a control method, and relates to the field of air conditioning control devices. According to the multifunctional novel air conditioning control panel system and the control method, the system comprises a bed main body, a sealing door, oxygen production equipment, an air treatment module and a monitoring module. According to the multifunctional novel air conditioning control panel system and the control method, the oxygen concentration in the bed body main body is controlled by the air processing module, the oxygen concentration in the bed body main body is accurately adjusted, the oxygen concentration in the indoor space is controlled, the use comfort of personnel is guaranteed, an oxygen bottle does not need to be manually and actively held for oxygen inhalation, and the working efficiency is improved. Under the action of the oxygen tent with certain sealing performance, oxygen is generated and escaped out of the oxygen tent to the minimum extent, it is guaranteed that the space is in the specific oxygen concentration, and altitude stress caused by plateau hypoxia is well recovered.

The invention provides a combined system and method for killing sulfate reducing bacteria in oilfield produced water. The combined system comprises an active oxygen solution sterilization unit, an oil removal tank, a coagulative precipitation tank, a filtering tank and a deoxidation tower, the active oxygen solution degerming unit comprises a partitioned excitation plasma reactor, a high-flux gas-liquid mixing and dissolving device, a decompression reactor and an oxygen tank; the partition excitation plasma reactor is used for ionizing and dissociating oxygen to generate oxygen active groups; the high-flux gas-liquid mixing and dissolving device is used for carrying out gas-liquid mixing and dissolving on water to be treated and oxygen active groups to generate an active oxygen solution; a water outlet of the high-flux gas-liquid mixing and dissolving device is connected to the reduced pressure reactor, water to be treated and an active oxygen solution fully react in the reduced pressure reactor, and sulfate reducing bacteria in the water to be treated are killed. The technical scheme provided by the invention solves the problems that the treatment effect of microorganisms in the oilfield produced water is undesirable, large-scale popularization cannot be realized, and the method is harmful to human bodies and the environment.

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 provides a liquid nitrogen heating, vaporizing and pressurizing system, a pressurizing control method and a liquid rocket. The liquid nitrogen heating, vaporizing and pressurizing system comprises a first-stage oxygen tank, a first-stage fuel tank and a liquid nitrogen tank, and the liquid nitrogen tank is arranged in the first-stage oxygen tank; the liquid nitrogen tank is sequentially connected with a liquid nitrogen conveying pipeline, a first liquid nitrogen heating and vaporizing unit, an oxygen tank pressurizing main pipeline and an oxygen tank energy dissipater arranged in the primary oxygen tank; the liquid nitrogen tank is sequentially connected with a liquid nitrogen conveying pipeline, a second liquid nitrogen heating and vaporizing unit, a fuel tank pressurizing main pipeline and a fuel tank energy dissipater arranged in the first-stage fuel tank; the liquid nitrogen box is sequentially connected with a liquid nitrogen conveying pipeline, a first liquid nitrogen heating and vaporizing unit, an oxygen box pressurizing main pipeline and a liquid nitrogen box pressurizing pipeline. The three storage tanks, namely the oxygen tank, the fuel tank and the liquid nitrogen tank, are pressurized by heating and vaporizing the liquid nitrogen, so that the cost of the pressurization system is reduced.

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 belongs to the technical field of medical instruments, and discloses an oxygen-adding atomization inhaler for treating interstitial lung disease, which comprises a respirator assembly, an oxygen bottle, a liquid medicine box, a waste liquid collecting box, an atomization pump, a negative pressure suction pump and a monitoring mechanism, the respirator assembly is connected with the oxygen bottle; the liquid medicine box is communicated with the oxygen bottle; a medicine mist supply pipe is arranged on the respirator assembly; the respirator assembly is slidably provided with a buccal device; an atomizing pump is arranged on the liquid medicine box; the atomizing pump is connected with the medicine mist supply pipe and the mouth holding device; a negative pressure suction pump is arranged on the waste liquid collecting box; the respirator assembly is provided with a sputum suction hose; and a monitoring mechanism is fixedly arranged on the liquid medicine box. According to the device, the mouth holding device or the medicine mist supply pipe can be selected for oxygen adding atomization inhalation treatment, abnormal conditions of a patient can be found in time, data of a plurality of monitoring indexes are integrated for fusion and analysis, potential risks are found in time, and when it is monitored that the patient has dyspnea, medicine feeding is automatically stopped, oxygen conveying is started, and sputum can be cleared in time.

The invention belongs to the technical field of aviation detection, and provides a device and method for testing the opening pressure of an ejector nozzle, and the device comprises a case, an oxygen bottle, an oxygen switch, a pressure reducer, a four-way connector, a precision pressure gauge, a pressure release valve, a nozzle detection tool, a flowmeter, an exhaust valve, and a high-pressure hose. The oxygen bottle is externally arranged, is filled with high-pressure oxygen in advance and is used for simulating a high-pressure oxygen source on the machine; the interior of the case is used for accommodating all other parts, and all the parts are connected through high-pressure hoses; the upper panel of the case is provided with an air inlet nozzle, and the right case is provided with an air outlet nozzle and an exhaust nozzle. Wherein the inflating nozzle is used for introducing high-pressure oxygen from an oxygen bottle, and the air outlet nozzle is used for introducing the high-pressure oxygen to the front end of a valve of the ejector nozzle to be tested until the ejector nozzle is pushed open, so that an on-board oxygen system is replaced to carry out an ejector nozzle opening pressure test. According to the invention, whether the opening pressure of the ejector nozzle on the machine meets the use requirement can be conveniently and rapidly detected under the ground condition.

A drive system of an aircraft, including a fuel cell, which can be supplied with hydrogen from a hydrogen tank and with air from a blower, the fuel cell being configured to provide drive power for operational flight after takeoff and before landing dependent on a hydrogen mass flow supplied by the hydrogen tank and dependent on an air mass flow supplied by the blower, and an electrical energy store, which is configured to provide additional drive power for takeoff and landing, wherein an additional hydrogen tank and an air or oxygen tank are configured to interact with the fuel cell such that the fuel cell can be supplied with an additional hydrogen mass flow and with an additional air or oxygen mass flow, thereby compensating at least partially for a loss of the additional drive power provided by the electrical energy store for landing.

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.