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25 results about "Inhaled Gas" patented technology

Inhaling propane gas has different symptoms depending on how much of the gas is inhaled. Respiratory protection is not needed while working with limited amounts of propane gas.

Dust removal and purification device for furniture processing workshop

The invention relates to the technical field of dust removal and purification, and particularly discloses a dust removal and purification device for a furniture processing workshop, the dust removal and purification device comprises a fixed base, the top of the fixed base is fixedly connected with a supporting frame, and the end, away from the fixed base, of the supporting frame is fixedly connected with a reinforcing frame; the outer side of the dust removal device is fixedly connected with the inner side of the reinforcing frame; the multiple sets of supporting frames are arranged, and the multiple sets of supporting frames are evenly distributed on the fixed base. The dust removal device comprises a purification cylinder, a material taking opening is formed in the outer side of the purification cylinder, an air outlet pipe is communicated with the center position of the bottom of the purification cylinder, the end, away from the purification cylinder, of the air outlet pipe is communicated with an air suction pump, and a filter screen is fixedly connected to the inner wall of the purification cylinder. And an air inlet pipe penetrates through and is fixedly connected to the center of the top of the purification cylinder. The dust removal and purification device for the furniture processing workshop can extinguish sparks, wash and dehydrate sucked gas.
Owner:GUANGZHOU MEINIMEI FURNITURE CO LTD

Intelligent breathing machine humidifying device with self-adaptive adjusting function and method

The invention relates to the technical field of medical equipment, in particular to an intelligent breathing machine humidifying device with a self-adaptive adjusting function and a method. The intelligent breathing machine humidifying device comprises a breathing machine main body and a humidifying module, and the humidifying module is arranged on the breathing machine main body; the humidifying module comprises a multi-source sensing module, a preprocessing and calculation rehearsal module, an instant feedback and AI control module, an energy consumption calculation and regulation early warning module and a humidifying and water supplementing module. The multi-source sensing module is used for collecting the temperature, humidity and breathing waveform of inhaled gas at the near end of the airway of a patient in real time. The multi-dimensional data of the patient is collected in real time, the digital twin model is used for predicting the humidification trend, output is dynamically adjusted on the basis, a traditional fixed preset mode is changed through the design, closed-loop self-adaptive adjustment is achieved, strategies such as pulse compensation are combined, the humidification efficiency is optimized, it is ensured that the optimal humidification state continues, and the humidification effect is improved. Therefore, the complication risk is effectively reduced, and the treatment safety and patient comfort are improved.
Owner:SECOND MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL

Sucker structure with return fixed ring

The utility model discloses a sucker structure with return fixing rings, which comprises a sucker base, the top end of the sucker base is fixedly communicated with a sucker top shell, the top end of the sucker top shell is fixedly communicated with a vent pipe, a connecting component is mounted in the vent pipe, and four return fixing blocks arranged in a rectangular shape are fixedly mounted at the bottom end of the inner wall of the sucker base. The connecting assembly comprises a connecting sleeve and three silica gel blocks, one side of each silica gel block is fixedly connected with the outer side of the connecting sleeve, and each of the four return fixing blocks comprises an assembling rubber block and a return fixing rubber block. The external vacuum pump adsorbs gas in the suction cup base in a vacuum mode through the pipeline, so that the suction cup base has adsorbability, the return fixing block clamps and fixes the suction cup from the outer side of the adsorption position, the stability of the suction cup after adsorption and fixation is improved, the phenomenon that the suction cup and the adsorption position are loosened is avoided, and the suction cup adsorption cost is reduced.
Owner:DONGGUAN YUANHAN IND CO LTD

External breathing assembly for controlling inhaled gas according to breathing state

The utility model discloses an external breathing assembly for controlling inhaled air according to a breathing state. The external breathing assembly comprises a detection control unit and a breathing unit, the detection control unit comprises a breathing sensor, a switching valve and a control module, and the breathing sensor is used for detecting the expiration or inspiration state in the breathing unit; the switching valve is connected with the breathing unit, the switching valve is further provided with an air supply connector used for being externally connected with an air supply unit, and the control module is in communication connection with the breathing sensor and the switching valve and used for controlling the switching valve to act according to the expiration or inspiration state detected by the breathing sensor; by means of the external breathing assembly, the effects of providing gas during inspiration and stopping providing gas during expiration are achieved, various gas inspiration systems can control gas inspiration according to the breathing state, universal applicability is achieved, waste of effective gas is reduced, and the device is particularly suitable for existing atomizers, oxygen inhalation devices and the like.
Owner:HEYI MEDICAL TECH (BENGBU) CO LTD

A multi-mode ultrasound and image-based respiration detection method and a hookah-type respiration detection device

ActiveCN121287102BMedicineBreath out
The application discloses a kind of based on multi-mode ultrasound and image respiratory detection method and water pipe type respiratory detection device, method includes: calibration respiratory detection device, ensure that the liquid level and negative pressure in device are normal;According to the indication, exhale detection is carried out, inhaled gas enters liquid seal passage by air inlet pipe, is discharged by air outlet pipe after passing through liquid, and the gas and liquid data in device are collected, the gas and liquid data in device are stored and transmitted to cloud background;According to the indication, inhale detection is carried out, air enters liquid seal passage by air inlet pipe, is inhaled into the body of subject by air outlet pipe after passing through liquid, and the gas and liquid data in device are collected, the gas and liquid data in device are stored and transmitted to cloud background;Respiratory detection parameter is obtained using the gas and liquid data in device, and respiratory function is evaluated according to respiratory detection parameter.The application provides a kind of high-precision, high reliability, anti-interference, easy maintenance respiratory detection device and method.
Owner:SOUTH CHINA UNIV OF TECH

Pet gas inhalation mask

ActiveJP1824084SNoseBiology
This product is a mask that is worn around the nose of a pet when the pet inhales gases containing hydrogen, oxygen, etc.
Owner:WOO株式会社 +1

Breathing demisting method, breathing demister and breathing demisting system for atmospheric vessel

The invention discloses a breathing demisting method, a breathing demister and a breathing demisting system for a normal-pressure container, and belongs to the technical field of industrial waste gas treatment. According to the method, a hydrophobic membrane filter element type demister is arranged at a breathing opening of a container, so that bidirectional gas-liquid separation is realized: when the container exhausts gas, acid-containing entrainment is intercepted, and clean emission is realized; when the container sucks air, moisture in the air is removed, and equipment corrosion is prevented. The breathing demister comprises a shell and a hydrophobic membrane filter element arranged in the shell, and the shell is provided with an air inlet / outlet, a breathing opening and a liquid outlet. According to the system, a breathing demister is connected with a normal-pressure container to form a complete treatment loop. By utilizing the efficient gas-liquid separation characteristic of the hydrophobic membrane, the two problems of unorganized emission pollution and equipment corrosion in the breathing process of the normal-pressure container are solved at one stroke, and the device has the advantages of being compact in structure, free of maintenance, safe and environmentally friendly.
Owner:HUIZHOU SHENGDA NEW MATERIAL TECH CO LTD

Pretreatment system of cutting fluid recovery and separation tank

The utility model discloses a pretreatment system for a cutting fluid recovery and separation tank. The pretreatment system comprises a hydrocyclone, a gas-liquid jet mixer and a pipeline type electrolytic reactor which are sequentially connected in series, the hydrocyclone is used for separating the mixed liquid to be treated; the gas-liquid jet mixer sucks gas through the change of the section of a pipe cavity of the main pipe so as to dissolve the gas into a mixed solution to be treated; after being treated by the gas-liquid jet mixer, the mixed liquid carries bubbles, a multi-dimensional electrode effect is formed in an electric field, and the electrolysis mass transfer efficiency is higher, so that when the mixed liquid penetrates through the pipeline type electrolysis reactor, a better oxidation sterilization effect is achieved, a larger gas-liquid ratio and more uniform micro-nano bubbles are provided for subsequent air flotation separation, and the separation efficiency is improved. Finer impurities can be adhered and separated, so that defoaming treatment is not needed.
Owner:IKD CO LTD

Portable cooling device and method for high-temperature and high-humidity environment

The invention relates to the technical field of underground cooling appliances, in particular to a portable cooling device and method for a high-temperature and high-humidity environment, the portable cooling device comprises a main structural part and a breathing mask, and the breathing mask is attached to the face; the main structural part comprises a shell, a refrigerant bin used for storing a refrigerant is arranged in the shell, and the refrigerant bin cools the breathing mask when the breathing mask inhales air; the device adopts a physical phase change cooling principle and does not need to be driven by an external power supply; by accurately regulating and controlling the temperature and humidity environment of the breathing area, the heat stress response of the human body is effectively relieved, and the risk of airway mucosa hyperemia and edema is reduced. The device is light and portable in structure, and is provided with a special thermal insulation layer and a bearing system without influencing the flexibility of underground operation. According to the scheme, installation is easy and convenient, the maintenance cost is low, complex engineering investment is not needed, a safe, economical and efficient dehumidification and cooling solution is provided for deep well high-temperature and high-humidity environment operation, and important practical value and wide application prospects are achieved.
Owner:PINGDINGSHAN ANTAIHUA MINING SAFETY EQUIP MFG +1

A three-dimensional storage device for double-spore mushroom stacks

PendingCN122324416AAgaricusActivated carbon
The application belongs to the technical field of mushroom storage, and discloses a three-dimensional storage device for Agaricus bisporus stacking, which comprises a base, a plurality of storage boxes fixedly arranged on the inner wall of the base, and ventilation pipes installed on one side of the storage boxes. In use, the sealing cover is removed from the outer surface of the flow guide pipe by rotating it, the external power switch of the driving motor is turned on, the fan blades and the plurality of mixing plates are rotated, the storage boxes are ventilated, the inhaled gas reaches the inside of the treatment pipe through the flow guide pipe, activated carbon is added to the inside of the treatment pipe, the two mixing plates are in the inside of the treatment pipe, and the activated carbon and the inhaled gas in the inside of the treatment pipe are fully mixed together when the two mixing plates rotate, so that the activated carbon fully adsorbs the harmful substances in the gas, thereby treating the discharged gas when the Agaricus bisporus is ventilated, and preventing the surrounding environment from being polluted.
Owner:NINGXIA SHUODI AGRICULTURAL TECHNOLOGY CO LTD

An implantable breathing assist device

The application discloses an implantable breathing assisting device, which comprises fixed magnetic sheets and moving magnetic sheets matched with each other, and an auxiliary air bag, when in an expiration phase, the fixed magnetic sheets and the moving magnetic sheets repel each other, the lung body contracts to exhale gas, and sterile gas in the auxiliary air bag is retracted to form an air bag between the lung body and a thoracic cavity; when in an inspiration phase, the fixed magnetic sheets and the moving magnetic sheets attract each other, the lung body expands to inhale gas, and the sterile gas in the auxiliary air bag gathers to form an air bubble at a lung tip of the lung body, the application can obviously improve lung ventilation and lung gas exchange functions, improve lung breathing, and can be used for treatment of most current lung diseases causing respiratory insufficiency, especially chronic obstructive pulmonary diseases and respiratory related infectious diseases, and even patients needing long-term use of a breathing machine to assist breathing, and is also suitable for patients with respiratory insufficiency caused by other diseases.
Owner:THE FIRST AFFILIATED HOSPITAL OF XIAMEN UNIV

Double-transverse-air-outlet warmer with ventilation function

The utility model discloses a double-transverse-air-outlet warmer with a ventilation function, and belongs to the technical field of electric appliances. A double-transverse-air-outlet warmer with a ventilation function comprises a box base, a box cover, a first fan, a second fan and a pair of heating devices, the first fan, the second fan and the heating devices are detachably installed in the box base, and the box base is detachably connected with the box cover; a ventilation port is formed in the side part of the box seat, is communicated with the second fan and is used for ventilation; air inlets matched with the first fan and the second fan respectively are formed in the surface of the box cover and are used for sucking air through the first fan and the second fan; hot air ports corresponding to the heating devices in position are formed in the surface of the box cover and used for blowing out hot air after being heated by the heating devices; the heating devices are arranged in the centers of the upper portion and the lower portion of the inner side of the box base respectively and communicate with the first draught fan and the second draught fan through airflow channels, the airflow channels are arc-shaped flow channels with the gradually-expanded sections, the effect of reducing turbulent flow and resistance of airflow in the flow channels is achieved, and hot air is evenly blown out in the low-noise environment.
Owner:ZHEJIANG JUSHANG INTELLIGENT TECH CO LTD

Pet gas inhalation mask

ActiveJP1824085SNoseBiology
This product is a mask that is worn around the nose of a pet when the pet inhales gases containing hydrogen, oxygen, etc.
Owner:WOO株式会社 +1

Variable-density self-circulation aerobic granular sludge treatment device

The present application relates to sewage treatment technical field, provide a kind of variable density self-circulation aerobic granular sludge treatment device, comprising: anoxic tank, micro-oxygen tank, aerobic tank and sedimentation tank are arranged along the flow path of water body, water body acceleration device is arranged in anoxic tank;Return main, the inlet end of return main is provided with sludge return branch pipe that extends into sedimentation tank and / or nitrification liquid return branch pipe that extends into aerobic tank, the outlet end of return main is provided with the first pipe section that extends into anoxic tank and is located in throat pipe;The outlet end of return main is also provided with the second pipe section that extends into anoxic tank and is located outside throat pipe;Air pipe, one end extends into second pipe section, the other end is suitable for being connected with gas source, air pipe is inhaled gas into second pipe section.The device, using the negative pressure effect generated by water inlet jet, the air-lift effect generated by air pipe aeration carries out double drainage, and nitrification liquid and / or sludge return to anoxic tank, it is beneficial to energy saving and environmental protection.
Owner:BEIJING PROVIRIDIA TECH CO LTD

Coal sample air-permeable drying box

The utility model discloses a coal sample air-permeable drying box which comprises a drying box body and a plurality of box doors connected to the front end of the drying box body, a plurality of air-permeable bins and a negative pressure bin are arranged in the drying box body, the air-permeable bins are communicated with the negative pressure bin, the negative pressure bin is connected with a fan, a plurality of air inlets are formed in the back face of the drying box body, and a plurality of air outlets are formed in the back face of the drying box body. The air inlet is connected with a conveying channel, the conveying channel is connected with a corresponding air penetration bin, a hopper is connected in the air penetration bin, the air inlet is connected with a filter screen used for filtering gas, and the filter screen is connected with a positioning mechanism used for positioning the filter screen. The filter screen can filter and purify impurities in sucked gas, pollution to a coal sample is reduced, the filter screen is convenient to disassemble and assemble, a new filter screen can be replaced or an old filter screen can be cleaned, the filtering effect is guaranteed, operation is flexible and convenient, and practicability is high.
Owner:ZHENJIANGSHI FENGTAI HUAYAN ZHIYANG EQUIP CO LTD

Intelligent digital display suction gun

The utility model belongs to the field of suction guns, particularly relates to an intelligent digital display suction gun, and aims to solve the problems that a capillary tube of an existing traditional suction gun is usually arranged at an air inlet of a suction gun tube, the capillary tube of the suction gun is easily blocked in the actual use process, the measurement effect is further influenced, the capillary tube is inconvenient to disassemble, clean or replace, the maintenance is inconvenient, and the work efficiency is high. According to the scheme, the device comprises a handle, one end of the handle is communicated with a probe pipeline, the end, away from the handle, of the probe pipeline is communicated with a connecting piece, the end, away from the probe pipeline, of the connecting piece is detachably connected with a filter head, and the filter head is used for filtering moisture and dust of sucked gas. When the gas filter is used, impurities such as water, oil mist, dust and the like in gas can be filtered out, so that the accuracy of subsequent detection is ensured, the blockage of a rear pipeline is avoided, the aim of conveniently disassembling the filter head is fulfilled, and the filter head which is used for a long time can be cleaned or replaced.
Owner:ULVAC ORIENT TEST & MEASUREMENT TECH (CHENGDU) CO LTD

Method for protecting alveolar epithelial cells from oxidative damage through equal-carbonic-acid hyperventilation

ActiveCN121490218ARespiratorsMedical devicesCell membraneAlveolar epithelial cell
The invention provides a method for protecting alveolar epithelial cells from oxidative damage through equal-carbonic-acid hyperventilation. Belongs to the technical field of medical respiratory therapy. The method comprises the following steps: providing minute ventilation support higher than physiologically required for a patient needing respiratory support, and supplementing exogenous carbon dioxide to inhaled gas by using a gas mixing device; continuously monitoring oxidative stress biomarkers such as end-expiratory carbon dioxide partial pressure, 8-isoprostaglandin concentration and pH value in expiratory condensate and the like of a patient through monitoring equipment; gas components and ventilation parameters are accurately regulated and controlled through equal-carbonic-acid high ventilation, a suitable microenvironment is created for alveolar epithelial cells, excessive oxidizing substances in the cells are effectively neutralized, direct damage of oxidative stress reaction to the cells is reduced, adverse conditions such as cell membrane lipid peroxidation and protein denaturation are reduced, and the treatment effect of the alveolar epithelial cells is improved. Therefore, the survival rate and the normal function maintaining capability of the alveolar epithelial cells are remarkably improved.
Owner:GUANGZHOU LANDSWICK MEDICAL TECH LTD

Frequency Spectrum Analyzers and Devices, Systems, Software and Methods for Signal Power Measurement and Spectrum Analysis

PendingUS20260254543A1Frequency spectrumSystems design
Systems, devices, software, and methods of the present invention enable frequency-based signal power analyses in software suitable for signal with either stationary or non-stationary spectrums. The methods that may be used throughout various systems including transmitters receivers, repeater, controllers, monitors, etc. and in software simulators to enable various signal power calculations and analyses, such as frequency spectrum analysis, throughout operating systems and that may be consistently applied in system design and operation simulations in a wide range of applications, such as medical data analysis, interference and spectrum monitoring or clearance, object tracking, transmission channel and noise analyses, radiated power analysis, signal boundary interference, satellite downlink signal identification, pulsed radar monitoring, audio detection and identification, lidar systems, sonar systems, medically active decision sensors to monitor but not limited to; EEG, ECG, pulse rate, inhaled gases, hazardous material and chemically charged environment, etc.
Owner:ASTRAPI CORP

Noise-reducing air path structure, air path device, and ventilator

PCT designated stageWO2026065017A1RespiratorsPump componentsNoiseType ventilator
The present application relates to a noise-reducing air path structure, an air path device, and a ventilator. The noise-reducing air path structure comprises: an air path cavity; a sound-transmitting and air-blocking member, disposed in the air path cavity and configured to divide the air path cavity into an airflow part and a sound-absorbing part; and a sound-absorbing filler, disposed in the sound-absorbing part and configured to absorb sound that enters the sound-absorbing part from the airflow part through the sound-transmitting and air-blocking member. The present application achieves the effect of reducing noise while also enabling the ventilator to be miniaturized and ensuring the healthiness of the inhaled gas.
Owner:SHENZHEN YAMIND MEDICAL TECHNOLOGY CO LTD

External multifunctional anesthetic gas carbon dioxide absorber

The utility model discloses an external multi -functional anaesthetic gas carbon dioxide absorber, the left and right sides of absorber are equipped with air inlet channel and air outlet channel respectively, one way of air inlet channel passes through carbon dioxide primary absorption chamber, gas shunt chamber, carbon dioxide secondary absorption chamber, humid heat exchange chamber and is communicated with air outlet channel, and the other way passes through carbon dioxide primary absorption chamber, gas shunt chamber, anaesthetic gas absorption chamber, humid heat exchange chamber and is communicated with air outlet channel, be equipped with the ventilation switch mechanism of anaesthetic gas absorption chamber switch below anaesthetic gas absorption chamber, compare with prior art, the utility model discloses absorber adopts double airway structure, can carry out carbon dioxide's absorption when operating, carries out anaesthetic gas's absorption after operation, and U -shaped carbon dioxide absorption channel can carry out carbon dioxide secondary high -efficient absorption, and identification is more simple and convenient, and gas shunt chamber can carry out heat dissipation cooling, and humid heat exchange chamber can guarantee patient inhaled gas's temperature and humidity.
Owner:CHENGDU LIZE TECH CO LTD

Condensate water recovery system with water pump automatic exhaust function

The utility model discloses a condensate water recovery system with a water pump automatic exhaust function. The condensate water recovery system comprises a condensate water recovery tank and a controller. A water outlet of the condensate water recovery tank is connected with a water outlet pipeline, a high-temperature water pump is arranged on the water outlet pipeline, and a flow monitor is arranged between the water outlet and the high-temperature water pump; a first output end of the high-temperature water pump is communicated with a condensate water recovery pipeline, a second output end of the high-temperature water pump is connected with an exhaust pipeline, and an electromagnetic valve for exhausting is arranged on the exhaust pipeline; and the flow monitor and the electromagnetic valve are respectively in signal connection with the controller. The exhaust pipeline is arranged on the high-temperature water pump on the water outlet pipeline of the condensate water recovery tank, the controller judges whether the high-temperature water pump sucks gas or not according to the flow signal of the flow monitor, the exhaust pipeline is automatically controlled to exhaust gas when the gas is sucked, the gas in the high-temperature water pump is exhausted in time, and the working efficiency is improved.
Owner:CHONGQING CHINA TOBACCO IND CO LTD

SF6 gas leakage monitoring device

The utility model relates to the technical field of gas leakage monitoring, and particularly discloses an SF6 gas leakage monitoring device which is characterized in that a suction type air duct structure is fixedly arranged at the bottom end in a high-voltage electric appliance cabinet and comprises an air inlet cylinder, an axial flow fan, a monitoring cylinder and an air exhaust cylinder which are sequentially connected in series and communicated, and a filter screen cover A is detachably arranged at the front end of the air inlet cylinder; a branch cylinder is arranged at the top end of the air inlet cylinder in a communicating mode, a filter screen cover B is arranged above the branch cylinder, and an NDIR sensor used for detecting the SF gas concentration is arranged in the monitoring cylinder. According to the device, a traditional suction type gas monitoring channel is improved, the height-adjustable external thread sleeve is additionally arranged, so that a suction inlet of the newly-added gas monitoring channel is close to the insulation switch equipment, SF6 gas can be sucked into the gas monitoring channel in time when leaked, the NDIR sensor rapidly detects the gas and cooperates with the controller to start an alarm, and the SF6 gas leakage detection efficiency is improved. And the low-position air inlet barrel is reserved and used for monitoring the SF6 gas at the low position in the normal state.
Owner:BEIJING ZHONGDIAN HUALAO TECH CO LTD

Portable sampler for pollution detection

The present invention relates to an easy-to-carry sampler for pollution detection, and relates to the technical field of pollution detection equipment, the easy-to-carry sampler comprises a detector, the upper side and the lower side of the detector are respectively provided with a gas inlet valve pipe for gas inlet and a gas outlet pipe for gas discharge, and the back of the detector is provided with a sampling device for quantitative sampling and collection of detection gas; the sampling device comprises an inclined device rod fixedly mounted on the back of the detector, a sampling circular pipe is fixedly mounted on one side of the inclined device rod, a one-way air inlet valve is mounted on the sampling circular pipe, an air supply pipe connected with the air inlet valve is further mounted on the sampling circular pipe, and a one-way air outlet valve is arranged on the air supply pipe; the device has the advantages that it is guaranteed that the detected gas amount is the same during detection every time, the sucked gas amount can be adjusted according to needs, and meanwhile it can be avoided that in subsequent detection, the detected gas is mixed with previously reserved gas, and consequently the detection result is not accurate.
Owner:HEBEI UNIV OF ENG

Closed negative pressure treatment vehicle for epidemic wood

The utility model relates to the technical field of epidemic wood transportation, in particular to a closed negative pressure treatment vehicle for epidemic wood, which comprises a crawler chassis, a transportation box is fixed on an objective table of the crawler chassis, a box opening of the transportation box is arranged at the top, and a box cover is hinged to one side of the box opening of the transportation box; and the pulverizer is arranged at the top of the interior of the transportation box, and ventilation holes are formed in one side in the transportation box and located below the pulverizer. The crusher is arranged at the top in the transport box and crushes the epidemic wood, the crushed epidemic wood can well fill the inner space of the transport box, meanwhile, negative pressure is generated in the transport box in the crushing process, and chippings, toxic gas in the epidemic wood and diseases and pests are prevented from running out of the transport box when the epidemic wood is crushed, so that the epidemic wood is prevented from being damaged, and the service life of the epidemic wood is prolonged. And meanwhile, a purification assembly is arranged on one side of the transportation box, sucked air is purified, air pollution and surrounding pollution are avoided, the crushing is completed, a box cover can be closed, and closed treatment is carried out.
Owner:BAOLVFENG (HUBEI) BIOTECHNOLOGY CO LTD

Hypersonic velocity blunt body boundary layer delayed transition control device and method

The invention provides a control device and method for delayed transition of a boundary layer of a hypersonic blunt body. The device comprises a blunt part shell, a continuous gap structure, a low-pressure cavity, a suction pump, a compressor and a control unit, continuous gap structures are uniformly distributed on the head part of the blunt head part shell; the continuous gap structure is designed into a narrow gap structure which is continuous in the spanwise direction and has no spanwise periodic distribution characteristic; the low-pressure cavity is used for collecting sucked high-pressure gas; the suction pump and the compressor are arranged in the blunt head part shell; the suction pump is connected with the low-pressure cavity through a pipeline; the compressor is positioned at the downstream of the suction pump and is used for further compressing the sucked gas; the control unit is electrically connected with the suction pump and the compressor. The method is reasonable in conception, and weakens the sensibility of non-modal disturbance in a near stationary point area and subsequent transient growth from the source through a targeted wall surface control strategy, so that boundary layer transition is obviously delayed in a relatively large blunt degree range, and the surface friction resistance and aerodynamic thermal load of an aircraft are reduced.
Owner:INST OF MECHANICS CHINESE ACAD OF SCI