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305 results about "Carbon dioxide content" patented technology

Carbon dioxide content: A measure of the bicarbonate level in the blood. The normal carbon dioxide content may vary somewhat from one laboratory to another. For example, it may be 20 to 29 milliequivalents per liter (mEq/L) of blood, 22 to 34 mEq/L, etc.

System and methods for continuously monitoring a concentration of volatile breathing compounds

Disclosed herein are systems and methods for monitoring at least one volatile breathing compound in respiratory gases of patients. A device includes a patient respiratory gas interface coupled via a connector to a gas sampling line. The line includes a first channel for conducting a predetermined flux of respiratory gases from the interface to an inlet of a sidestream gas monitor, which monitors carbon dioxide (CO2) content. A pump facilitates gas flow through the device and the monitor. An outlet of the monitor is coupled to a second channel for conveying gases away. A valve controls passage of respiratory gas from the monitor via the second channel by connecting or disconnecting the flux to / from at least one volatile breathing compound detector, which monitors compound content. A control unit monitors CO2 values and uses this as a signal to control the valve, enabling compound monitoring or bypass based on CO2 content.
Owner:MASIMO CORP

Plateau-area-oriented oxygen supply dynamic regulation and control method, system and device and computer equipment

The invention relates to the technical field of control, and discloses an oxygen supply dynamic regulation and control method, system and device for a plateau district and computer equipment, and the method comprises the steps: carrying out the first-stage oxygen supply for an indoor room through a first oxygen supply operation corresponding to a first oxygen supply flow under the condition that there is no person in the indoor room; after the indoor real-time oxygen content reaches the target oxygen volume fraction, if people move in the indoor room and the indoor room is in a ventilation state, second-stage oxygen supply is carried out on the indoor room through second oxygen supply operation corresponding to second oxygen supply flow, so that the indoor real-time oxygen content is kept stable at the target oxygen volume fraction; and the second oxygen supply flow is corrected by using the number of indoor people, the indoor activity type and the indoor real-time carbon dioxide content which are monitored in real time, and the difference value between the indoor real-time oxygen content and the target oxygen volume fraction is kept within the target threshold value range. Finally, the oxygen supply regulation and control method for dynamically controlling the indoor oxygen supply flow of the plateau area based on the environment parameter data monitored in real time is achieved.
Owner:ZHEJIANG UNIV

Phase change absorbent for desulfurization and decarbonization of natural gas and preparation method of phase change absorbent

The invention belongs to the technical field of natural gas purification, and particularly relates to a phase change absorbent for desulfurization and decarburization of natural gas and a preparation method thereof.The phase change absorbent is prepared from, by mass, 15%-60% of ionic liquid, 40%-85% of organic solvent and the balance water; wherein a cation donor of the ionic liquid is cyclic amine, and an anion donor of the ionic liquid is nitrogenous organic acid or nitrogenous organic acid salt; the cyclic amine-organic acid ionic liquid is used as an active component of the phase change absorbent, and the active component of the absorbent contains cyclic amido, so that the hydrolysis reaction of COS can be efficiently catalyzed, the COS is converted into H2S which is easily absorbed by the absorbent, and the efficient removal of the COS is realized; secondly, according to the content of the sulfide and the carbon dioxide in the natural gas, different kinds of organic acids are selected as anion donors of the ionic liquid, so that the alkalinity of the phase change absorbent is regulated and controlled, and the aim of efficiently removing the sulfide and the carbon dioxide in the natural gas is achieved.
Owner:陕西驭腾化学控股发展有限公司

Measuring range switching type carbon dioxide content analysis device and method

The invention provides a range switching type carbon dioxide content analysis device and method. The measuring range switching type carbon dioxide content analysis device comprises a detection pipeline, an infrared light source and a measurement light filter are arranged at the gas inlet end and the gas outlet end of the detection pipeline respectively, two or more detection modules with different carbon dioxide detection measuring ranges are arranged on the outer side of the measurement light filter, an adjustable light barrier is arranged in the detection pipeline, and the adjustable light barrier is arranged on the outer side of the measurement light filter. And infrared light emitted by the infrared light source is switched among the more than two detection modules through the measurement optical filter by adjusting the adjustable light barrier so as to output detection data of a corresponding detection range. According to the range switching type carbon dioxide content analysis device and method, the proper detection range can be selected to detect the carbon dioxide content, the detection precision is high, and the requirements of different application scenes can be well met.
Owner:CHINA HUADIAN ENG CO LTD +1

Air conditioning device for antrodia camphorata cultivation and antrodia camphorata cultivation system

The utility model firstly provides an air conditioning device for culturing antrodia camphorata, the air conditioning device comprises an air inlet system, a heat exchange system and an air supply system, and a carbon dioxide generator for adjusting the content of indoor carbon dioxide is arranged between the air inlet system and the heat exchange system. The utility model further provides an antrodia camphorata cultivation system which comprises a square cabin used for containing an antrodia camphorata cultivation device, and the air conditioning device is further arranged in the square cabin. According to the air conditioning device for antrodia camphorata cultivation and the antrodia camphorata cultivation system, the carbon dioxide generator is additionally arranged in a conventional air conditioner, so that the carbon dioxide concentration in the cultivation environment is adjusted, and the overall yield and the medicinal value of antrodia camphorata are improved.
Owner:QINGDAO MAIDIRUI ECOLOGICAL ENVIRONMENT TECH CO LTD

Natural gas calorific value test result correction method, system, equipment and medium

The invention discloses a natural gas calorific value test result correction method, system, equipment and medium, and relates to the technical field of natural gas analys.The method comprises the steps that according to the initial calorific value, the carbon dioxide content and the relative density obtained through testing and pressure data and temperature data of a test point, the first nitrogen content is obtained through calculation based on an S-GERG88 state equation; calculating a first calorific value by using the first nitrogen content and the initial calorific value, and performing iterative calculation according to the first calorific value to obtain a second nitrogen content until the absolute value of the difference between the second nitrogen content and the first nitrogen content is smaller than a preset value; determining the first calorific value corresponding to the obtained second nitrogen content as a target calorific value; through an iterative algorithm, the accuracy of a natural gas calorific value test result and a natural gas working condition compression factor calculation result through the laser absorption spectrometry can be greatly improved, and then the path reliability and applicability of natural gas energy metering through the laser absorption spectrometry are improved.
Owner:PETROCHINA CO LTD

Regional forest carbon space distribution acquisition method

PendingCN119323737Aimprove accuracyImplementation granularityScene recognitionVegetationCarbon storage
The invention relates to the field of forest carbon sink prediction, in particular to a regional forest carbon spatial distribution acquisition method, which comprises the following steps of: judging forest types, vegetation growth states and soil information by combining satellite remote sensing with unmanned aerial vehicle aerial photography information, calculating forest carbon density through the information, and drawing the forest carbon density on a geographic image through a GIS (Geographic Information System) technology. The forest carbon space distribution diagram is obtained, the problems in the prior art are solved, the calculation precision can be improved by improving the fine granularity, the carbon reserve of a single tree can be estimated more accurately, then the carbon reserve condition of the whole forest is deduced, and the carbon space distribution diagram of the forest is obtained by detecting the air carbon dioxide content of the target area. And whether the vegetation growth condition information of the target area is accurate is determined, so that whether forest carbon density calculation is accurate is verified, and the accuracy of forest carbon spatial distribution drawing is improved.
Owner:ZHEJIANG HONGSEN ECOLOGICAL TECHNOLOGY CO LTD

Plant growth monitoring system

The invention discloses a plant growth monitoring system, and relates to the technical field of plant growth monitoring, and multi-parameter monitoring equipment in the system comprises a main body, a supporting rod, a data processing module, a fixed sensor group and a sensor expansion module interface, atmospheric temperature, atmospheric humidity, atmospheric pressure, carbon dioxide content, illumination intensity, rainfall, wind speed, wind direction, soil temperature, soil humidity, soil conductivity, short-wave radiation flux, long-wave radiation flux, photosynthetically active radiation flux, multiband solar spectrum, plant reflection spectrum, dynamic crop coefficient, canopy temperature, latent heat flux and net radiation flux can be obtained; according to the method, various plant growth monitoring parameters such as the vegetation index, the chlorophyll index and the effective accumulated temperature are normalized, so that more plant growth parameters can be obtained, and more accurate plant growth information is provided.
Owner:SHENYANG ACAD OF INSTR SCI +1

Method and apparatus for biological production of synthetic methane

The present invention relates to a method and an apparatus for converting carbon monoxide and / or carbon dioxide and hydrogen in a gas to methane and water. The gas containing carbon monoxide and / or carbon dioxide is preferably biogas, flue gas or synthesis gas. The gas containing hydrogen is preferably a gas obtained from the electrolysis of water. The method and apparatus include efficient washing of the packaging material without removing it from the reactor, thereby maintaining and optimizing the conversion efficiency. In particular, the present invention relates to increasing the amount of green energy obtained from the anaerobic digestion of organic material by reducing the carbon dioxide content and increasing the methane content in the gas.
Owner:BIOGASCLEAN AS

Full-electronic intelligent beer filling valve

The utility model discloses a full-electronic intelligent beer filling valve which comprises a box body, an installation cylinder is fixedly connected to the inner wall of the box body, a filling pipe is fixedly connected to the inner wall of the installation cylinder, the bottom end of the filling pipe penetrates through and extends to the bottom of the box body, two through holes are formed in the inner wall of the installation cylinder, and the two through holes are formed in the inner wall of the installation cylinder. And the through hole is located in the top of the filling pipe, an electric push rod is installed on the top of the box body, and the bottom end of the electric push rod penetrates through the box body and extends into the installation cylinder. According to the utility model, the sealing seat is arranged to seal the filling pipe, and is matched with the sucking pump and the air supply pump to realize vacuum and carbon dioxide filling in the container, then filling is carried out, manual intervention is not needed with the gas sensor, and the automatic control system can accurately monitor and adjust the vacuum degree and the carbon dioxide content in the filling process; and the automatic system can reduce the labor cost and improve the production efficiency and the product quality, so that the production cost is saved.
Owner:ZHANGJIAGANG NEW PEAK MASCH CO LTD

Early warning device for carbon dioxide geological sequestration leakage

The invention relates to the field of environmental engineering, and discloses a carbon dioxide geological sequestration leakage early warning device which comprises a box body, multiple sets of connecting columns are installed at the bottom of the box body, the length of the connecting columns is not smaller than 5 m, iron buckets are welded to the outer surfaces of the connecting columns, and communicating holes are formed in the outer surfaces of the connecting columns; the top end of the connecting column is fixedly connected with a sealing cylinder located in an inner cavity of the box body, and a piston is arranged in the sealing cylinder in a sealed and sleeved mode. According to the device, radial displacement (referring to the radial direction of a deep hole) generated by crustal movement in the inner wall of the deep hole in an early warning region is utilized to radially extrude an iron bucket, so that the iron bucket deforms, the volume of an inner cavity of the iron bucket is reduced, transmission oil is forced to upwards push a piston and a connecting plate to apply pressure to a pressure sensor, and crustal stress is sensed through the pressure sensor; compared with real-time monitoring of the carbon dioxide content, the carbon dioxide leakage early-warning method has an obvious early-warning effect.
Owner:CHINA UNIV OF MINING & TECH

Low-energy-consumption natural gas low-temperature rectification decarburization process and system

The invention discloses a low-energy-consumption natural gas low-temperature rectification decarburization process. The process comprises the following steps: S1, firstly removing water and sulfur-containing compounds in raw material gas; s2, cooling the raw material gas without water and sulfur-containing compounds to-30 DEG C to-27 DEG C, and introducing a separated gas-phase material without C4 and above light hydrocarbon substances into a tower kettle reboiler of a low-temperature rectifying tower as a heat source of the tower kettle reboiler to form a gas-liquid mixed material at-37 DEG C; and S3, controlling the pressure of the gas-liquid mixture at-37 DEG C to be 2.5-3.5 MpaA, introducing the gas-liquid mixture into a low-temperature rectifying tower, and finally harvesting methane-rich natural gas at the top of the tower and liquid-phase carbon dioxide at the bottom of the tower. The method has the advantages that the energy consumption is low, and the natural gas with complex components and ultrahigh carbon dioxide content can be decarbonized.
Owner:江苏富瑞能源服务有限公司

Collecting device for capturing carbon dioxide

The utility model discloses a collecting device for capturing carbon dioxide, and relates to the field of carbon dioxide capturing. The device comprises a device main body, a liquid tank and a front air inducing mechanism, the front air inducing mechanism comprises a shell, and an induced draft fan which is vertically mounted is arranged in the shell; the carbon dioxide monitor is installed on the air inlet pipe, the model of the carbon dioxide monitor is sk-600-CO2, the carbon dioxide monitor is installed on the air inlet pipe, after the induced draft fan is started, air passes through the carbon dioxide monitor, and the carbon dioxide monitor can monitor the content of carbon dioxide in the sucked air in real time; a worker can determine whether the collecting device works or not by observing the carbon dioxide content, when the carbon dioxide content is at a low value, the worker can close the collecting device, power consumption of the device can be reduced, meanwhile, after the carbon dioxide content in the air is recovered, the collecting device is started after a period of time; and efficient collection can be kept after the device is started.
Owner:HANGZHOU SONGXING ENVIRONMENTAL TECH CO LTD

A Carbon Dioxide Concentration Prediction Method Based on Semi-Supervised Deep Probability Model

ActiveCN119538205BBiological modelsGas analyser construction detailsProbit modelPrincipal component regression
The present invention discloses a carbon dioxide concentration prediction method based on a semi-supervised deep probability model for on-line detection of the carbon dioxide content in a carbon dioxide absorption tower. Based on the conventional probabilistic principal component regression model, the present invention simultaneously introduces the ideas of semi-supervised learning and deep learning, expands the basic probabilistic principal component regression model into the structure of a semi-supervised deep learning model, that is, proposes a new soft sensing method based on a semi-supervised deep probabilistic principal component regression model for on-line detection of the carbon dioxide concentration in a carbon dioxide absorption tower. Compared with the conventional principal component regression model, the method of the present invention can not only effectively utilize a large amount of cheap unlabeled sample information, but also deeply extract the information hidden in the process data, thereby improving the actual prediction effect of the carbon dioxide concentration.
Owner:SOUTHEAST UNIV

Method for testing content of free carbon in boron carbide

The invention discloses a method for testing the content of free carbon in boron carbide, which comprises the following steps: S1, weighing m g of a boron carbide sample containing free carbon, putting into a reaction device filled with a chromic sulfate iodic acid solution, and arranging a carbon dioxide detection device at the output end of the reaction device; s2, the reaction device is heated, the boron carbide sample and the chromic sulfate iodic acid solution react to generate carbon dioxide, the heating time is H, the heating temperature is T, and the detection device measures the content of carbon dioxide in the first reaction; s3, repeating the step S2 to obtain the content of carbon dioxide in the second reaction; and S4, subtracting the content of carbon dioxide obtained in the step S3 from the content of carbon dioxide obtained in the first reaction in the step S2 to obtain the content of carbon dioxide generated in the free carbon reaction, and obtaining the content of free carbon in the boron carbide sample through conversion. The content of carbon dioxide generated by the boron carbide reaction at the same temperature within the same time is the same, the content of carbon dioxide generated by free carbon can be obtained, and the error is small.
Owner:SEIKO BOYAN TESTING TECHNOLOGY (HENAN) CO LTD +1

Heatable and temperature-measurable trachea cannula

The trachea cannula capable of being heated and measuring the temperature is used in cooperation with a monitor and comprises a multi-cavity trachea body, a heating body is arranged in the pipe wall of one side of the multi-cavity trachea body, a temperature measuring probe is arranged in the pipe wall of one side of the multi-cavity trachea body, an end-expiratory carbon dioxide monitoring pipe is arranged in the pipe wall of the multi-cavity trachea body, and the temperature measuring probe is arranged in the pipe wall of the multi-cavity trachea body. The heating body, the temperature measuring probe and the end-tidal carbon dioxide monitoring tube are all connected to the monitor. When the trachea cannula heating device is used, the heating body is connected with the monitor which has the heating function, the temperature monitoring function and the end-tidal carbon dioxide monitoring function, the temperature needed by the human body is set through the monitor and conveyed to the heating wire to heat the trachea cannula, the temperature of gas is increased after the gas passes through the heated trachea cannula, and the temperature suitable for the human body is reached. Meanwhile, the temperature probe on the trachea cannula monitors the temperature of the airway at the same time so as to achieve the function of monitoring the body temperature in real time, and the other end-expiratory carbon dioxide monitoring tube monitors the carbon dioxide content of gas exhaled from the airway of the patient at the same time.
Owner:JIANGSU LIFENG BIOTECHNOLOGY CO LTD

Oxygen consumption and energy expenditure monitoring

A patient ventilation system and a computing device-implemented method determine oxygen consumption in a mechanically ventilated subject includes receiving a signal representing a total flow at an inspiratory outlet of a ventilator, calculating a transport delay time between inspiratory and expiratory gas sample points in a patient ventilation circuitry, transmitting a signal to an inlet selector valve to selectively open a fluid path between the inspiratory gas sample point and an oxygen sensor or between the expiratory gas sample point and the oxygen sensor, receiving data representing oxygen content and carbon dioxide content over a period of time, calculating oxygen consumption data over the period of time from the data representing the total flow, oxygen content and carbon dioxide content and from the transport delay time, and displaying the oxygen consumption data over the period of time.
Owner:COSMED +1

Systems and methods for moisture enhanced carbon dioxide desorption for direct air capture

PCT designated stage expiredWO2025034703A2Gas treatmentDispersed particle separationPtru catalystSorbent
A substrate is provided for the capture, desorption, and collection of carbon dioxide from gaseous media with improved yield and overall efficiency. The substrate includes sorbents composed of alkali-containing compounds such as K2O and Na2O, nano-dispersed on metal oxide carriers such as porous A12O3, in the presence of catalysts such as nickel or ruthenium. CO2 is adsorbed from gases, including ambient air, contacted with the substrate. The CO2 is then desorbed via contact with a moist inert gas desorption medium. Exemplary embodiments using nitrogen gas (N2) having between 1 mol% and 2 mol% moisture content desorbed significantly more CO2 between 150°C and 200°C, and at a higher rate, compared to dry desorption conditions and elevated temperatures. Realizing these benefits at lower temperatures and at the vapor pressure of water at 25 °C for CO2 desorption decreases the energy costs associated with direct air capture of carbon dioxide.
Owner:THE TRUSTEES OF COLUMBIA UNIV IN THE CITY OF NEW YORK +2

Composite three-phase separator module for preventing sludge calcification and anaerobic reactor thereof

The utility model relates to the field of sewage treatment, in particular to a composite three-phase separator module for preventing sludge calcification and an anaerobic reactor thereof, which comprise an outer separation module, an inner separation module, a water outlet module and a backflow module, according to the composite three-phase separator module provided by the utility model, a remarkable technical breakthrough is realized through structural innovation and process optimization. The traditional IC reactor is limited by the arrangement mode of a three-phase separator, and the effective sludge level height is less than 50% of the total height of the reactor, so that the upper volume is idle. The composite three-phase separator module is integrated at the top of the reactor, and the height of a sludge layer is increased to 70%-80% of the total height of the reactor through the double-layer separation design of the outer separation module and the inner separation module, so that the microbial biomass and the treatment load are greatly improved. Meanwhile, methane is released through forced collision of a V-shaped separation plate of the outer separation module, so that the content of carbon dioxide in reflux liquid is reduced by more than 80%, and calcium carbonate crystallization conditions are effectively destroyed by combining forced mixing of inlet water with a circulating pump.
Owner:GUANGZHOU DEYUYUAN ENVIRONMENTAL PROTECTION EQUIP CO LTD

Gas channeling risk early warning method and device, equipment and storage medium

The embodiment of the invention provides a gas channeling risk early warning method, device and equipment and a storage medium, and belongs to the technical field of oil and gas field development. According to the method, when the carbon dioxide flooding technology is used for crude oil extraction of the production well, the current gas channeling risk of the target object is judged by detecting the gas-oil ratio and the carbon dioxide content, proper anti-channeling measures can be made and implemented in time according to the gas channeling risk, and the oil extraction rate can be increased.
Owner:PETROCHINA CO LTD

Polyethylene foam material carbon dioxide leakage detection device

The utility model discloses a polyethylene foaming material carbon dioxide leakage detection device which comprises a detection device and a gas tank, a gas inlet pipe is arranged on one side of the gas tank, a gas collection hopper is arranged on the upper end portion of the gas inlet pipe, a support is arranged in the gas collection hopper, a motor drives fan blades to rotate, and carbon dioxide leaked in the polyethylene foaming process is discharged out of the gas tank. Due to the connection effect among the air outlet pipe, the spiral blade and the air tank, the mixed air generates downward spiral accelerated movement under the guidance of the spiral blade, and water vapor is separated from the mixed air under the gravity and centrifugal effect; mixed air which falls to the inner bottom of the air tank at the outlet of the lower end of the spiral blade to be collected, is separated from water vapor and dried enters the air outlet pipe from the bottom end of the air outlet pipe and is conveyed into the detection device, so that the water vapor content in the air is prevented from influencing the detection result of the carbon dioxide content in the air, and the accuracy of the detection result is improved.
Owner:SUZHOU JIUDING

Field environment multi-modal high-throughput intelligent perception equipment

ActiveCN309594302SParticulatesEngineering
1. The name of the design product: farmland environment multi-modal high-throughput intelligent sensing equipment. 2. The use of the design product: as a sensing detection device, detecting temperature, humidity, atmospheric pressure, wind speed, wind direction, total solar radiation, illumination, rainfall, carbon dioxide content, and particulate matter concentration in the farmland environment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:HUAZHI RICE BIO TECH CO LTD

Ventilation system for closed living space

The invention belongs to the technical field of ventilation systems, and particularly relates to a closed living space ventilation system which comprises a closed living space body, a ventilation module, a detection module, a fresh air module and a control module. The ventilation module is used for exhausting air in the closed living space body, a body of the ventilation module is a ventilation cylinder, and the ventilation cylinder is fixedly installed on the inner side wall of the closed living space body. According to the device, when it is detected that the content of carbon dioxide is too high, the carbon dioxide detector transmits a signal to the PLC, the PLC receives information and transmits the information to the exhaust fan so as to control the exhaust fan to be started, the exhaust fan sucks in external air through the fresh air system and the air inlet pipe, and the carbon dioxide content is detected to be too high. And external air is purified and filtered through the activated carbon filtering module and the carbon dioxide adsorption module in the fresh air system, so that the content of carbon dioxide in the input air is reduced, and the quality of the input air is improved.
Owner:WUHAN HANLIAN INTELLIGENT CONTROL TECH CO LTD

Oil and gas well carbon dioxide on-line monitoring and metering equipment and implementation method thereof

The invention discloses oil and gas well carbon dioxide online monitoring and metering equipment and an implementation method thereof, and relates to the technical field of oil field metering. The equipment comprises a gas-liquid separation unit, a liquid production capacity and moisture content analysis and detection unit, a carbon dioxide content detection unit, a gas flow unit, an automatic control unit, a data acquisition and transmission unit and an auxiliary unit, on-line metering and remote data transmission of parameters including liquid production capacity, gas production capacity, water content, carbon dioxide content, pressure and temperature of a wellhead of an oil well can be realized. The gas-liquid separation unit adopts a gravity separation method and is combined with a specific structural design to guarantee the separation effect; each parameter detection unit realizes accurate detection based on an ultrasonic technology, an infrared absorption principle, a thermal measurement principle and the like; data are uploaded to an upper computer through a DTU unvarnished transmission technology, and real-time monitoring and data analysis are supported. The system is adaptive to conventional drive and CCUS drive oil fields, the automation degree is high, the environmental adaptability is high, and data support is provided for accurate management of oil reservoirs.
Owner:JIANGSU WEDGESTONE ENERGY TECH CO LTD

Biogas treatment equipment, biogas treatment methods, methane fermentation treatment systems

The object of the present invention is to provide a biogas treatment facility and a biogas treatment method that enable the removal of carbon dioxide contained in biogas generated by methane fermentation in a simple and low-cost manner. [Solution] To solve the above problems, we provide a biogas treatment facility and a biogas treatment method that include a gas-liquid contact section for bringing biogas discharged from a methane fermentation facility into contact with an aqueous solution containing alkaline earth metal ions, wherein a carbonate precipitation reaction proceeds in the gas-liquid contact section. [Effect] According to this invention, for biogas generated by methane fermentation and having a relatively high carbon dioxide content, carbon dioxide can be removed (recovered and fixed) from the biogas by a carbonate precipitation reaction that proceeds without the supply of external energy. This makes it possible to remove carbon dioxide contained in biogas simply and at low cost.
Owner:SUMITOMO HEAVY INDUSTRIES ENVIRONMENT CO LTD

A control method, device, air conditioner and storage medium of an air conditioner

The present invention discloses a control method, device, air conditioner and storage medium for an air conditioner. The method includes: obtaining the indoor environmental temperature, indoor environmental humidity, indoor oxygen concentration, indoor carbon dioxide content, outdoor weather information and weather forecast information of the air conditioner; controlling the opening and closing of at least one of the door and window according to the weather forecast information; controlling the opening and closing of the fresh air function according to the indoor oxygen concentration and indoor carbon dioxide content; controlling the opening and closing of the dehumidification function and / or the opening and closing of the humidifying device according to the indoor environmental temperature and indoor environmental humidity; controlling the opening and closing of at least one of the door and window according to the outdoor weather information, indoor environmental humidity, indoor oxygen concentration, indoor oxygen concentration and indoor carbon dioxide content. With this solution, based on the Internet of Things, it is possible to accurately control the indoor temperature and humidity, as well as the balance of carbon dioxide and oxygen, and monitor the safety status of the doors and windows in the presence or absence of people, which is conducive to improving the convenience of people's lives.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Occupant respiratory isolation method

A method of isolating a vehicle occupant's breath is presented that includes energizing an ultraviolet radiation source to disinfect the air. A first sensor detects the carbon dioxide content in the air. A second sensor detects the quality of the air. A third sensor detects particles in the air. The results of the first sensor are compared to a baseline carbon dioxide reading recorded in a controller connected to the sensor. Fan speed increases the duration of air exposure to the ultraviolet radiation. The results of the second sensor are compared to a baseline air quality recorded in the controller. A display including a filtration system is signaled to identify contaminants in the air. The results of the third sensor are compared to a baseline particle recorded in the controller. A warning is sent to a party of interest indicating the presence of particles in the air.
Owner:INT TRUCK INTPROP CO LLC

Preparation process for producing water for injection based on hollow fiber deoxidation membrane

The invention relates to a preparation process for producing water for injection based on a hollow fiber deoxidation membrane, and belongs to the technical field of preparation of water for injection medicines. According to the preparation process of the water for injection, dissolved oxygen in a water body can be stably removed, reproduction of microorganisms, bacteria and the like in the water can be effectively restrained by strictly controlling the content of oxygen and carbon dioxide in the water, meanwhile, due to removal of carbon dioxide in the water body, the conductivity of the water body is further reduced, the pH value of the finished water is stabilized to be 6.5-7.5, and the water quality is improved. The related industrial standards of the water for injection are met, and the content of microorganisms and endotoxin meets the strict requirements of the 2025 edition pharmacopoeia. Compared with a traditional distillation method, the membrane method integration process does not need to consume a large amount of industrial steam, energy consumption can be remarkably reduced, and the operation cost is reduced; by optimizing the position of the hollow fiber deoxidation membrane device, the water quality and the storage stability of the water for injection can be improved, and the production cost and the maintenance cost can be reduced.
Owner:SHANDONG INST OF MEDICAL DEVICES & DRUG PACKAGING INSPECTION

Design method of dew point purification environment test chamber and working chamber and ventilation air volume

PendingCN123024585AAir volumeWater vapor
The present application belongs to the technical field of low temperature equipment, and discloses a dew point purification environment test cabin and operation cabin and a ventilation air volume design method. The test cabin and the operation cabin are parallel, and are isolated and communicated through a shielding door in the middle, and have independent air inlets and air outlets respectively. The design method comprises the following steps: establishing a numerical model of the dew point purification environment test cabin and the operation cabin; designing the working mode of the dew point purification environment test cabin and the operation cabin; setting calculation conditions; calculating the ventilation air volume of each working mode; and performing micro-positive pressure air leakage air volume correction. The design method reasonably estimates the ventilation air volume through the initial drying mode, the maintaining drying mode and the rapid drying mode, controls the water vapor and carbon dioxide content in the test cabin and the operation cabin respectively, and completes different drying requirements within a limited time; the ventilation air volume provides data basis for the selection of fan, compressor, adsorbing desiccant and other supporting equipment, and establishes a technical foundation for realizing low energy consumption optimal design under the premise of meeting the drying requirements.
Owner:INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT

A separable carbon neutralization device for mining

This invention relates to the field of mining environmental protection equipment technology, and more particularly to a separable mining carbon neutralization device. The separable mining carbon neutralization device provided by this invention solves the technical problem of poor operational stability in existing mining carbon neutralization devices. The separable mining carbon neutralization device includes a pre-stage component for separating carbon dioxide from gas, a post-stage component for adsorbing the carbon dioxide separated by the pre-stage component, and a gas pump. By setting a separation membrane to separate carbon dioxide from the gas, the gas entering the post-stage component has a higher carbon dioxide content and lower impurity content, which facilitates rapid adsorption of carbon dioxide by the adsorbent, thereby improving the stability of the mining carbon neutralization device during operation and increasing the gas treatment efficiency.
Owner:ZHEJIANG DAXIN TECH CO LTD