2114 results about "Ambient air" patented technology

The invention relates to the field of household appliances, and discloses an air purifier efficient filter screen replacement prompting method and system.The method comprises the steps that firstly, air adsorption data are obtained, and the concentration of pollution particles is recognized to determine a filter screen load mode; analyzing the use state of the filter screen, and performing attenuation detection in combination with historical replacement records to obtain attenuation data; calculating the service residual life according to the attenuation data, evaluating a purification index, generating a filter screen efficiency index in combination with the environment air quality, and dividing replacement levels; then configuring multi-order prompt information according to levels, determining a filter screen edge area, calculating a penetration rate and positioning a weak part; and finally, generating a local failure graph, extracting failure interference factors, constructing adaptive replacement logic and formulating a replacement prompt scheme. The filter screen utilization rate can be increased, and the purification efficiency can be guaranteed.

The invention discloses a Coanda effect-based sand-proof and dust-proof device for an electrolytic bath, which is characterized in that a surrounding dust cover structure which is in flexible contact with the electrolytic bath or keeps a non-contact gap with the electrolytic bath is formed at the periphery of a full-load-bearing movable bracket, and the dust cover structure forms a semi-closed protection structure between a foundation and the electrolytic bath; dustproof cover structures composed of fences are arranged on the two sides of a foundation with profile steel as the foundation, each dustproof cover structure at least comprises a vertical fence wall arranged on the side portion of the full-bearing type movable bracket, the bottom of each vertical fence wall is connected with the foundation, and the top of each vertical fence wall makes flexible contact with the electrolytic cell or forms a non-contact gap with the electrolytic cell. A continuous variable-curvature Coanda curved surface is adopted, the airflow speed is increased through the wall attachment effect, a laminar flow air curtain is formed, and curvature-flow velocity coupling optimization is formed. Compressed air is injected through the narrow slit nozzle, ambient air is pried to form a large-flow air curtain, the actually measured air curtain coverage area is 3.2 times that of a traditional flow guide plate, and the unit energy consumption is reduced by 57%.

A heat pump system for a vehicle is configured to selectively exchange heat between coolant and the thermal energy generated from refrigerant at the time of condensation and evaporation of the refrigerant. The heat pump system heats the vehicle interior using the heat-exchanged high-temperature coolant and improves the heating efficiency of the vehicle by selectively using the ambient air heat, the waste heat of electrical components, and the waste heat of the battery module, at the time of heating the vehicle interior, thereby increasing the overall travel distance of the vehicle by efficiently adjusting the temperature of a battery module for an optimal performance of the battery module.

The invention relates to the technical field of environmental air detection, in particular to an environmental air quality detection device and a detection method thereof.The environmental air quality detection device comprises a base, and a case is fixedly mounted at the top of the base. Through the dual protection mechanism of the air inlet mechanism and the cleaning module, the air quality detection accuracy can be effectively guaranteed, in the specific detection period, induced draft fan blades rotate forwards to form negative pressure to suck air, an exhaust window assists in exhausting air, it is ensured that airflow is stable, and after a detection task is completed, an automatic cleaning program of the air inlet mechanism is started; the cleaning frame and the front cleaning group cooperatively operate to scrape dust on the inner walls of the induced draft fan blades and the air inlet pipe and prevent residual dust from falling off and being mixed into air in subsequent detection, meanwhile, the cleaning module continuously sprays, and under the action of countercurrent air driven by reverse rotation of the induced draft fan blades, cleaning liquid fully covers the air inlet pipe and the induced draft fan blades and dissolves dust and oil stains, so that secondary pollution is avoided; and air entering the case is ensured to be clean, so that real and reliable detection data is ensured.

An embodiment heat pump system of a vehicle includes a first cooling device including an electrical component and a first line for circulating a coolant, a second cooling device including a battery module and a second line for circulating the coolant, a HVAC module connected through a refrigerant line and internally provided with an opening / closing door that adjusts a selective flow of ambient air according to a cooling, heating, or heating and dehumidifying mode of a vehicle interior, a heat-exchanger connected to the internal condenser through the refrigerant line, a first expansion valve on the refrigerant line and connecting the heat-exchanger and the evaporator, a compressor connected between the evaporator and the internal condenser through the refrigerant line, an accumulator on the refrigerant line between the evaporator and the compressor, a chiller, a second expansion valve, a third expansion valve, and a second connection line.

The invention discloses a sand and dust weather satellite-ground cooperative monitoring method, and belongs to the technical field of atmospheric environment and meteorological disaster monitoring, and the method comprises the steps: calculating a particulate matter concentration change abnormal coefficient of each monitoring station according to a ground environment air quality automatic monitoring network; calculating visible light, intermediate infrared and thermal infrared indexes; extracting a satellite remote sensing monitoring index near each ground monitoring station, and comprehensively comparing ground monitoring to confirm an optimal threshold value of sand and dust discrimination of each index; and extracting a sand and dust weather distribution area, and calculating a sand and dust intensity index. According to the invention, by fusing ground environment air quality monitoring point data and a large-range satellite remote sensing monitoring result, a sand-dust weather integrated monitoring technology method model is comprehensively constructed, dynamic monitoring of regional large-range sand-dust weather distribution is realized, full-coverage sand-dust weather distribution judgment can be carried out on a large-range region, and real-time monitoring of the large-range region is realized. And the sand and dust weather transmission path and the influence thereof can be dynamically reflected.

In a thermal management system for a vehicle and a method for controlling the same, the thermal management system includes a fluid transfer device configured to execute thermal management of at least one object, to be thermally managed, through introduced ambient air, and a controller configured to determine a target air flow rate required for thermal management of the at least one object to be thermally managed, and to control the fluid transfer device based on an optimal control value determined using a control model for a predictive state value according to a current state value and the target air flow rate.

The invention provides an inert gas generation system, and relates to the technical field of industrial gas production. The inert gas generation system comprises the following modules: a gas pretreatment module, an intelligent separation module, a dynamic purification module, a pressure regulation and control module, a quality analysis module, a safety control module and an energy efficiency optimization module, and the gas pretreatment module is used for removing particulate matters through an electrostatic dust collection device by adopting a multi-stage gradient filtering algorithm based on ambient air input, adjusting humidity by combining a dew point control technology, forming a standardized gas source and generating a standard gas source. Through combination of a multi-stage gradient filtering algorithm and a dew point control technology, collaborative treatment of particulate matters and humidity is realized, stable gas source input is formed, the reliability of a subsequent processing link is improved, membrane separation parameters are dynamically predicted by applying a convolutional neural network model, and the permeation efficiency of a hollow fiber membrane stack is optimized.

A carbon dioxide capture module according to one or more embodiments may include: an absorber containing an amine-based absorbent capable of absorbing carbon dioxide; and a filter allowing air to pass through and preventing permeation of the amine-based absorbent. The filter is located between the amine-based absorbent and ambient air of the carbon dioxide capture module.

The invention provides an ambient air particulate matter sampling method and device, and the method comprises the steps: collecting the flow velocity data of a dust-containing air flow passing through an interstage flow channel, and determining the flow velocity gradient and a flow velocity sudden change region of the dust-containing air flow according to the flow velocity data; identifying energy dissipation of the dust-containing airflow under the action of viscosity of the inner wall of the interstage flow channel based on the pressure data and the flow velocity abrupt change area, determining deposition accumulation loss of particulate matters in the dust-containing airflow through all the energy dissipation, and predicting a critical separation point of the dust-containing airflow separated from the inner wall of the interstage flow channel according to the deposition accumulation loss and the flow velocity gradient. The method comprises the steps of obtaining a critical separation point of an interstage flow channel, determining a reflux coercive rate after the critical separation point, extracting an interstage particle escape rate of the interstage flow channel through the reflux coercive rate, adjusting the interstage flow channel according to the interstage particle escape rate, and collecting particles in the dust-containing airflow according to the adjusted interstage flow channel. The flow channel structure of the sampling device can be adjusted by predicting the loss mechanism of particulate matters in the airflow impact process.

A system may include a first heat rejection unit including a first set of fans and coils and a second heat rejection unit configured to be stacked on top of the first heat rejection unit, where the second heat rejection unit includes a second set of fans and coils. The system may include one or more central passages configured to connect the first heat rejection unit to the second heat rejection unit, where the one or more central passages separate the first heat rejection unit into a first section and a second section. The system may include an inlet duct configured communicate with outside and receive fresh ambient air via an opening in the inlet duct, where the inlet duct is configured to divert the fresh ambient air to at least one of the first heat rejection unit or the second heat rejection unit to be exhausted outside.

The invention discloses a thermal runaway protection circuit, a thermal runaway protection method and an energy storage system, a corresponding environment detection signal is obtained by detecting the environment air pressure of a battery through an induction circuit, the grade of the thermal runaway of the battery is determined by a main control circuit according to the environment detection signal, and a corresponding thermal runaway processing signal is generated according to the grade of the thermal runaway of the battery. And the fire-fighting circuit executes corresponding fire-fighting actions according to the thermal runaway processing signals, so that the fire-fighting system is graded according to the grade of thermal runaway, and the fire-fighting stability of the system is improved.

Embodiments of a ventilated storage system and method are provided for enabling space-efficient storage of casks containing hazardous nuclear materials. Each of a plurality of dry storage casks has a ventilated overpack with air inlets at or near the bottom and air outlets at or near the top so that ambient air flows into the air inlets, through the overpack, and out of the air outlets for venting and cooling the hazardous nuclear material. A storage pad on which the casks sit each have a plurality of air flow channels that provide air to the air inlets situated at the bottoms of the casks. The storage pad enables the casks to be placed closer together in a more space-efficient triangular array.

The utility model relates to an organic carbon element carbon monitoring system and an automatic standard solution dropwise adding device thereof, and belongs to the technical field of carbon detection. The organic carbon element carbon monitoring system comprises a heating furnace and a control system, an optical channel is located in the heating furnace, a sampling filter membrane is arranged in the optical channel, and a detector is arranged at an outlet of the optical channel; the device for automatically dropwise adding the standard solution comprises a first branch pipe, a quantitative pipeline and a carrier liquid supply pipeline, wherein the first branch pipe is used for extending into a heating furnace; the quantitative pipeline is used for providing quantitative standard solution; the carrier liquid supply pipeline is used for providing carrier liquid; the input end of the first branch pipe is communicated with the output end of the standard solution quantitative pipeline; the output end of the carrier liquid supply pipeline is communicated with the input end of the standard solution quantification pipeline, and the carrier liquid supply pipeline is used for driving a quantitative standard solution to a reaction area of the organic carbon element carbon monitoring system. According to the device, the measurement of carbonate carbon in the ambient air particulate matters is realized. The automatic titration calibration device avoids the influence of manual operation, has an automatic titration calibration function and is good in repeatability.

The invention discloses a noise reduction method and device, equipment, a storage medium and a program product, and relates to the technical field of audio processing, and the method comprises the steps: collecting a bone conduction signal and at least two paths of environment air conduction signals of an earphone wearer through an earphone, based on the bone conduction signal, performing first noise reduction processing on a target air conduction signal of a target direction determined based on the at least two paths of environment air conduction signals to remove a first air conduction component of a relatively low frequency band of an earphone wearer, and obtaining an initial noise-reduced signal; and performing second noise reduction processing on the initial noise-reduced signal based on the bone conduction signal, the at least two paths of environmental air conduction signals and the phase difference of the at least two paths of environmental air conduction signals, so as to remove a second air conduction signal of a higher frequency band of the earphone wearer, and obtain a target noise-reduced signal. According to the method and the device, the noise generated by the earphone wearer in the audio recorded by the earphone is effectively removed.

A heat pump system for a vehicle may be configured to adjust a temperature of a vehicle interior by selectively exchanging heat between coolant and thermal energy generated from refrigerant at the time of condensation and evaporation. The system may use the heat-exchanged low-temperature or high-temperature coolant to improve the heating efficiency of the vehicle. The system may selectively use ambient air heat, waste heat of electrical components, and waste heat of a battery module, at the time of heating the vehicle interior. The system may increase the overall travel distance of the vehicle by efficiently adjusting the temperature of a battery module for optimal performance of the battery module.

A thermal transfer system for an appliance includes a first blower that delivers process air through an airflow path. A first vapor compression loop delivers internal thermal energy via a first flow of media from a first evaporator and to a condenser that are within the airflow path. A second vapor compression loop delivers ambient thermal energy via a second flow of media from a second evaporator that is outside the airflow path to a thermal exchange structure within the airflow path. A second blower directs ambient air over the second evaporator for capturing ambient thermal energy. The first blower directs the process air over the thermal exchange structure to deliver ambient thermal energy to the condenser to define a preheat sequence of the condenser. Further, the internal thermal energy and the ambient thermal energy are delivered by the process air to a processing space.

Described herein are features for a high altitude lighter-than-air (LTA) system and associated methods. The LTA may include one or more super-pressure balloons (SPB). One or more of the SPB's may include one or more interior volumes. One or more of the interior volumes may be configured to receive an LTA gas therein to supplement the free lift of the LTA system. There may be an adjustable valve or vent to release the LTA gas. One or more of the interior volumes may be configured to receive ambient air to provide a variable downward force. The SPB may use a compressor to pump in ambient air. The compressor or another valve may release ambient air to decrease the downward force. A zero-pressure balloon (ZPB) may be attached with the one or more SPB's. The ZPB may supplement lift for the system.

A lightweight barrier insert door is attached to an enclosure, such as a shipping container that holds a product to be fumigated, such as during transport of the product to a new location. The barrier insert door fits within the doorway of the container to provide a sealed barrier to mitigate leakage of a fumigant from the interior of the container. The barrier also includes air intake ports to maintain the structural integrity of the container and to provide ambient air to the interior. Additional ports allow for connection for fumigant entry, monitoring, and / or an exhaust hose to be connected to or through the barrier for the fumigation process. The barrier can be height adjustable to account for shipping containers of various sizes and can be connected with fumigant exhaust and release systems for the safe release thereof.

The invention relates to a large-scale deep hypothermia environment test system and method, the test system comprises a main body structure, the main body structure comprises a test section and further comprises a transfer plant, the transfer plant comprises a dry air hall communicated with the test section, the dry air hall is connected with an environment air hall through a dry-wet conversion gate, the bottom of the dry air hall communicates with a low-temperature model transformation room, and the bottom of the ambient air hall communicates with a model assembly room; a track is further arranged in the transfer plant, a model hoisting device capable of moving along the track is arranged on the track, and the model hoisting device is used for hoisting the model assembly to the test section, the low-temperature model transformation room and the model assembly room. According to the invention, the model assembly can be hoisted among the model assembly room, the low-temperature model transformation room and the test sections through the transfer plant, so that the operation safety is improved, the test efficiency is greatly improved, the model can be debugged in time in the test process, and the test effect is effectively improved.

The present disclosure relates to a geothermal carbon capture system, comprising; a primary liquid circuit circulating liquid into a geothermal well and returning heated liquid from a well head of the geothermal well, the primary liquid circuit passing through a condenser; a turbine driven by the heated liquid to power a compressor configured to draw in and compresses ambient air to feed a first compressed air supply and a second compressed air supply, wherein the first compressed air supply is directed to a separator to extract carbon dioxide therefrom; and the second compressed air supply drives a pump to force the carbon dioxide extracted from the separator towards a reinjection well for reinjection into geology surrounding the reinjection well.

The invention relates to the field of parameter calibration, in particular to a real-time parameter detection and calibration method and device for a gas sensor. The method comprises the following steps: collecting environmental parameters according to a gas sensor to generate an effective parameter sequence; performing time sequence analysis on the effective parameter sequence to generate a parameter feature set; performing ambient air detection and concentration response stage analysis based on the standard working state, and marking concentration response stages of different gases; performing synchronous positioning and detection interference sensitivity calculation on the parameter feature set based on the concentration response dynamic stage, and generating the detection interference sensitivity of the environmental parameters; original detection parameter calibration is carried out according to the detection interference sensitivity, and a gas detection reference is generated. According to the invention, the accuracy, stability and reliability of gas detection of the gas sensor in a complex environment are improved.

The utility model provides a continuous gas pressurization sampling device which comprises a gas extraction passage and a sampling passage, a gas extraction pump is arranged on the gas extraction passage, a sampling pump is arranged on the sampling passage, and the two passages are both connected to a gas supply end. The sucking pump is kept to be started when the sampling device is in a working state, and the sampling pump is started when the sampling instrument samples. According to the scheme, a double-air-pump structure is adopted, it can be ensured that external fresh air is stably supplied to the sampling instrument in real time, the gas purity is not affected even if the length of the air inlet pipeline reaches hundreds of meters, and the air inlet pipeline is particularly suitable for being used in stations such as an automatic environment air monitoring station. According to the sampling device in the scheme, when the sampling device is in a normal operation state, the sucking pump is kept to be started, the sampling pump does not need to be started, and the sampling pump is started only when a sampling instrument needs to sample, so that the service life of the sampling pump is not influenced.

The invention relates to a plant (100) for reducing carbon dioxide from the ambient air, comprising a first device (10) for adsorbing the carbon dioxide from the ambient air using a pourable or free-flowing adsorption material (1) and comprising a second device (20) for desorbing the adsorption material (1) enriched with carbon dioxide, wherein the second device (20) is designed as a device (20) separate from the first device (10), wherein the first device (10) has a feed area (12) for feeding the adsorption material (1) and a discharge area (14) for discharging the adsorption material (1) enriched with carbon dioxide from the first device (10).

The invention relates to the technical field of intelligent regulation and control and energy conservation of hospital environment air quality, in particular to a big data management and intelligent evaluation system for the hospital environment air quality. The system comprises a multi-modal data acquisition module, a data processing module, a dynamic transmission modeling module, a dynamic Bayesian network risk modeling module and a prospective risk hedging and energy consumption optimization module. The system calculates a dynamic air transmission coefficient by collecting environment and people flow data, and constructs a dynamic Bayesian network model to calculate a cross-region propagation risk probability; the method is characterized in that when the risk probability exceeds a threshold value, a system actively solves a multi-objective optimization problem with minimization of energy consumption as an objective, and an optimal HVAC control instruction is generated; according to the method, the conversion from lagging evaluation to prospective risk hedging is realized, and the risk can be actively identified and regulated before the pollution exceeds the standard.

The invention relates to the technical field of equipment compensation control, and discloses a medical suction device with an altitude compensation function and a control method thereof. The method comprises the following steps: reading ambient air pressure data of a first pressure sensor, reading molecular sieve tank differential pressure data of a second pressure sensor, collecting pressure data of an output end of a third pressure sensor, and determining a real-time altitude according to the ambient air pressure data; a breathing pressure fluctuation value is calculated based on the molecular sieve tank differential pressure data, when the breathing pressure fluctuation value is lower than a preset negative pressure threshold value, the current breathing frequency is recorded, and nitrogen removal time, pressure equalizing time and flushing time are determined to control an electromagnetic valve to work; and when the oxygen concentration is lower than a first concentration threshold value and the real-time altitude height is lower than a preset height, increasing the nitrogen removal time by a first preset proportion and increasing the target rotating speed by a second preset proportion, and when the oxygen concentration is lower than a second concentration threshold value, stopping the operation of the compressor and closing all the electromagnetic valves. According to the invention, the false alarm rate is effectively reduced, and the equipment safety is improved.

The invention comprises an apparatus, method for using the apparatus and system for balloon altitude control by in-situ characterization and active energy management. The invention presented enables transportation, autonomous operation and use of a balloon beyond the limits of conventional high-altitude ballooning to the edge of the atmosphere, or about 100 km above the surface of the Earth. The apparatus comprises at least: an envelope containing lift-gas; an envelope and lift-gas characterizer; an altitude control system operated using active energy addition and lift-gas transfer or ambient air introduction into the system; and an external payload component. The invention is capable of operating in ascent, descent, or stationary mode; the altitudinal movement of the balloon is caused by measuring in-situ envelope and lift-gas characteristics, identifying the change in the lift-gas energy needed, and facilitating the required energy change for altitude control.

Monitors having housings, gas-specific sensors, environmental sensors, volatile organic compound sensors, indicators, processors, and memory configured to store event data and trained time-series classification models. Methods of monitoring comprising training a time-series classification model, directing environmental air towards sensors, receiving sensor data, determining event activity using the time-series classification model and providing the determination to an indicator.

The present application provides an oil-gas separation apparatus capable of implementing complete degassing and methods. The apparatus comprises: a piston cylinder and a degassing cylinder, a degassing solenoid valve being arranged between the degassing cylinder and the piston cylinder, one end of the degassing solenoid valve extending into the interior of the piston cylinder, and the other end thereof being in communication with the degassing cylinder; a variable speed diaphragm pump, an air intake end thereof being in communication with the atmosphere and an air discharge end thereof being in communication with the degassing cylinder for drawing ambient air, and used for cleaning a gas path of the oil-gas separation apparatus, and providing power for the degassing cylinder, thereby replacing a design involving a carrier gas cylinder or a gas generator; and a main control module. According to the present application, the piston cylinder, the degassing cylinder, the degassing solenoid valve, and the variable speed diaphragm pump are integrated and are uniformly controlled by the main control module, so that high-efficiency oil and gas separation is implemented. A unique degassing control method and a concentration calculation method are designed, so that fast and efficient degassing is implemented, nearly complete degassing is achieved without correcting a degassing rate, a mathematical model for inverse calculation of an oil sample concentration on the basis of a gas concentration is simplified, and concentration conversion is convenient.

A system includes a sensor at a first location proximate a polluting system to collect environmental data of a first type and an energy consumption monitoring platform at the first location to generate energy consumption data associated with the polluting system. The system includes a controller coupled to the sensor and the monitoring platform to direct communication of environmental data and energy consumption data to a remote computing server. A direct air capture (DAC) system at a second location removes a selected pollutant from ambient air and isolates a concentrated form of the pollutant as a raw material. A derivative product creation (DPC) system at a third location produces a derivative product from the raw material. The remote computing system accumulates pollutant credits based on removal of the selected pollutant by the DAC system and dissipates pollutant credits based on some of the energy consumption data.