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7251 results about "Indoor air" patented technology

High-efficiency multifunctional modular interior air purification device

The invention relates to a high-efficiency multifunctional modular interior air purification device. A device main body is cylindrical and consists of three cylindrical function modules which are combined and include a main l function module, a power control module and an additional function module from bottom top. The main function module with 360-degree omnibearing intake air design consists of a protective hood, a free rotating guide plate, a washable prefiltering glass fiber layer, an attached active carbon adsorption layer, an attached nano active carbon adsorption layer, a high-efficient PTFE filter layer, a load nano TiO2 porous ceramic sequentially from bottom top, as well as a UV lamp in the middle from the outside to the inside; the power control module consists of a power cord, a multifunctional power jack, a fan and a control panel; and the additional function module consists of a cylindrical guide plate, a guide protective hood and a solid essential oil dispersion box/negative ion generator/humidifier and the like. The high-efficiency multifunctional modular interior air purification device is compact in design structure, has no noise pollution, low energy consumption and an obvious purification effect, and is suitable for use in various interior places.
Owner:TONGJI UNIV

Novel sorbents and purification and bulk separation of gas streams

InactiveUS20080264254A1Large capacityLittle and no corrosive effectNitrous oxide captureGas treatmentSorbentDesorption
Porous-material-supported polymer sorbents and process for removal of undesirable gases such as H2S, COS, CO2, N2O, NO, NO2, SO2, SO3, HCl, HF, HCN, NH3, H2O, C2H5OH, CH3OH, HCHO, CHCl3, CH2Cl2, CH3Cl, CS2, C4H4S, CH3SH, and CH3—S—CH3 from various gas streams such as natural gas, coal/biomass gasification gas, biogas, landfill gas, coal mine gas, ammonia syngas, H2 and oxo-syngas, Fe ore reduction gas, reformate gas, refinery process gases, indoor air, fuel cell anode fuel gas and cathode air are disclosed. The sorbents have numerous advantages such as high breakthrough capacity, high sorption/desorption rates, little or no corrosive effect and are easily regenerated. The sorbents may be prepared by loading H2S—, COS—, CO2—, N2O, NO—, NO2—, SO2—, SO3—, HCl—, HF—, HCN—, NH3—, H2O—, C2H5OH—, CH3OH—, HCHO—, CHCl3—, CH2Cl2—, CH3Cl—, CS2—, C4H4S—, CH3SH—, CH3—S—CH3-philic polymer(s) or mixtures thereof, as well as any one or more of H2S—, COS—, CO2—, N2O, NO—, NO2—, SO2—, SO3—, HCl—, HF—, HCN—, NH3—, H2O—, C2H5OH—, CH3OH—, HCHO—, CHCl3—, CH2Cl2—, CH3Cl—, CS2—, C4H4S—, CH3SH—, CH3—S—CH3-philic compound(s) or mixtures thereof on to porous materials such as mesoporous, microporous or macroporous materials. The sorbents may be employed in processes such as one-stage and multi-stage processes to remove and recover H2S, COS, CO2, N2O, NO, NO2, SO2, SO3, HCl, HF, HCN, NH3, H2O, C2H5OH, CH3OH, HCHO, CHCl3, CH2Cl2, CH3Cl, CS2, C4H4S, CH3SH and CH3—S—CH3 from gas streams by use of, such as, fixed-bed sorbers, fluidized-bed sorbers, moving-bed sorbers, and rotating-bed sorbers.
Owner:PENN STATE RES FOUND +1

Diatom internal wall coating with humidity-regulating and air purifying functions and preparation process thereof

ActiveCN102643048ARegulate humidityGood interior decorationAdditive ingredientOxygen ions
The invention relates to an indoor decorative material, in particular to a diatom internal wall coating with humidity-regulating and air-purifying functions and a preparation process thereof, and aims at overcoming the defects existing in the prior art and providing the diatom internal wall coating and the preparation process thereof, wherein the diatom internal wall coating has an excellent indoor air humidity-regulating function, can eliminate peculiar smell, preserve heat, reduce noise, remove harmful gases including formaldehyde, toluene and the like in the air, can continuously release negative oxygen ions, has a lasting environmental-protection function, a humidity-regulating function and the air-purifying function, and is rich in colors, strong in texture and environment-friendly. The diatom internal wall coating with the humidity-regulating and air-purifying functions and the preparation process of the diatom internal wall coating have the advantages that ingredients can be used after screened, weighed, evenly mixed in a grading mode, checked out and packaged. When the diatom internal wall coating is used, water is added into the coating to prepare a pasty or milky coating, and texture shape construction can be performed in a batch-coating, blade-coating or wipe-coating mode or in a roll-coating, spraying or brush-coating mode. An appropriate construction process can be selected according to the decorative requirements.
Owner:长春市兰亭序吉硅藻新材料有限公司

System and method for intelligently controlling indoor environment based on thermal imaging technology

The invention discloses a system for intelligently controlling an indoor environment based on thermal imaging technology, which comprises a thermal imaging sensor, a human-computer interaction interface device and an area controller, wherein the thermal imaging sensor acquires thermal imaging data of the indoor environment and identifies and analyzes the thermal imaging data so as to calculate a subjective radiation temperature; and the area controller adjusts the refrigerating and heating capacities at the tail end of an indoor air conditioner according to the subjective radiation temperature and the temperature set by the human-computer interaction interface device so as to perform optimized control on the indoor environment to achieve a temperature comfortable for indoor personnel. The system and a method for intelligently controlling the indoor environment based on the thermal imaging technology can adjust the temperature of the indoor environment, improve the personnel comfort level and work efficiency, reduce the energy consumption and improve the management level of an automatic control system of a building under the condition of acquiring comprehensive environment and personnel information.
Owner:于震

Self-cleaning control method for air conditioner

The invention discloses a self-cleaning control method for an air conditioner. The self-cleaning control method includes the steps that the self-cleaning function is started; the real-time indoor unit coiled pipe temperature and the real-time indoor air humidity are continuously obtained, and the real-time frosting time and the real-time defrosting time which correspond to the real-time indoor air humidity are obtained; the indoor unit frosting control process is executed; timekeeping is started when the real-time indoor unit coiled pipe temperature is lowered to the first set coiled pipe temperature, and the time is used as the first timekeeping time; in the process of executing frosting control, if the real-time indoor unit coiled pipe temperature is larger than the second set coiled pipe temperature and the first timekeeping time reaches the real-time frosting time, the frosting control process is stopped and switched to the indoor unit defrosting control process; and in the process of executing defrosting control, if the real-time indoor unit coiled pipe temperature is small than the third set coiled pipe temperature and the defrosting time reaches the real-time defrosting time, the defrosting control process is stopped. By applying the self-cleaning control method, precise control over air conditioner self-cleaning is achieved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Thermostat dehumidification control method of air conditioner

The invention discloses a thermostat dehumidification control method of an air conditioner. The air conditioner comprises a compressor, a condenser, an electronic expansion valve, an evaporator, a four-way reversing valve, an outdoor fan, an indoor fan, an indoor temperature sensor, an indoor humidity sensor and an outdoor temperature sensor; and the evaporator is divided into a heating section and a dehumidifying section by a dehumidifying electromagnetic valve. The dehumidifying operating mode of the air conditioner is divided into a cold room dehumidification control mode and a thermostat dehumidification control mode according to the difference between the temperature detected by the indoor temperature sensor and the temperature set by a remote controller. When the air conditioner is in the thermostat dehumidification control mode, the thermostat dehumidification control mode is further subdivided into three control areas according to the relative humidity detected by the indoor temperature sensor, thus the purposes of reducing the indoor temperature and keeping the temperature constant are achieved by controlling the frequency of the compressor, the rotation speed of the outdoor fan and various valves, and a conformable indoor environment is provided for the user.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD

Cabinet-type constant temperature and constant cleanliness fresh air purifying system

The invention discloses a cabinet-type constant temperature and constant cleanliness fresh air purifying system. The fresh air purifying system comprises an indoor cabinet-type air-conditioner. The indoor cabinet-type air-conditioner is internally provided with an air adjusting unit and a fresh air purifying unit. The indoor cabinet-type constant temperature and constant cleanliness fresh air purifying system is sequentially provided with an air outlet, a heat exchanger, an air conditioning fan and a fresh air purifier from top to bottom. The indoor cabinet-type air-conditioner is provided with an indoor air inlet and an outdoor air inlet. The outdoor air inlet can independently correspond to the fresh air purifier to lead in and purify outdoor air and then exhaust the air indoors while the indoor cabinet-type air-conditioner completes cooling and heating of indoor gas. The cabinet-type constant temperature and constant cleanliness fresh air purifying system is convenient to use, the requirements of indoor refrigerating, heating and indoor air purification can be met at the same time, and meanwhile the fresh air function can be achieved; and purifying efficiency is high, the fresh air purifying system is suitable for indoor multi-space and large-area air purification, and due to arrangement of the fresh air system, the indoor air constant temperature and constant cleanliness and freshness in the long-term purifying process indoors can be kept.
Owner:BEIJING MIVEI TECH

Method and system for adjusting air quality of high-rise buildings by virtue of natural conditions

The invention relates to a method and a system for adjusting air quality of high-rise buildings by virtue of natural conditions. The method comprises the steps of acquiring index data of air quality of a local area, detecting indoor and outdoor air quality, humidity and temperature as well as outdoor wind power, transmitting detection data to a main control system, working out an air quality control strategy by the main control system according to related data of various detections as well as the index data of the air quality of the local area, sending the air quality control strategy to a local controller by the main control system, and controlling a total heat fresh air ventilator to start and stop ventilating by the local controller. The system comprises various air quality detection devices, a ventilation and air change device, the local controller, a local area network and the main control system, wherein the main control system is connected with an air quality index publishing system. According to the system and the method, both the indoor air condition and the outdoor air condition of the high-rise buildings are taken into account, existing facilities of the high-rise buildings are fully used, relatively ideal air at the best time is gathered, and the air quality of the high-rise buildings is controlled and regulated at low cost when the air contamination is uncertain.
Owner:SHANDONG IRON & STEEL CO LTD

Intelligent fresh and return air volume adjusting type air purifier

The invention relates to an intelligent fresh and return air volume adjusting type air purifier. The intelligent fresh and return air volume adjusting type air purifier comprises a box, a fresh and return air heat exchanger, an exhaust fan, an air feeder, a controller, a primary filter and an efficient filter. The box is provided with an outdoor exhaust port, an outdoor fresh air port, an indoor air feeding port and an indoor exhaust port. The outdoor fresh air port communicates with the indoor air feeding port through an air inlet channel. The indoor exhaust port communicates with the outdoor exhaust port through an exhaust pipeline. The air inlet channel and an exhaust channel are arranged in a crossed isolation manner, and the fresh and return air heat exchanger is arranged at the intersection position of the air inlet channel and the exhaust channel. According to the signals of indoor and outdoor PM2.5 concentration, indoor CO2 concentration, the air feeding temperature, the fresh air temperature, the indoor and outdoor pressure difference and the like, a controller is used for intelligent comparison and selection, and optimized running of five work conditions of all fresh air, all return air, the minimum fresh air ratio, the minimum return air ratio and fresh and return air mixed adjustment is achieved. The indoor air exchange requirement and the air quality are guaranteed, meanwhile, the dust filtering and containing amount of all levels of filters is reduced, air treatment energy consumption is reduced, and the air feeding comfort degree is guaranteed.
Owner:孙金鹏

Pressure control method of air conditioning system

The invention discloses a pressure control method of an air conditioning system. The pressure control method comprises the following steps: S1, respectively comparing detected outdoor ambient temperature and exhaust pressure of a compressor with a preset temperature range and preset pressure, judging whether to reduce the exhaust pressure or not according to comparison results, and if so, starting the step S2; S2, reducing the rotational speed of an indoor fan during refrigeration and reducing the rotational speed of an outdoor fan during heating; S3, comparing detected degree of superheat of inhaled air or exhaust pressure with preset degree of superheat or preset exhaust pressure, judging whether to withdraw from the control of reducing the exhaust pressure or not according to the comparison results, and if so, starting the step S4; S4, stopping the reduction of the rotational speed of the indoor fan during refrigeration and stopping the reduction of the rotational speed of the outdoor fan during heating. Through the adoption of the pressure control method of the air conditioning system disclosed by the invention, the exhaust pressure of the system can be controlled within a certain range; furthermore, the method is low in cost and good in effects, and cannot impact the reliability of the air conditioning system.
Owner:GREE ELECTRIC APPLIANCES INC

Air conditioner and air velocity control method for same

The invention discloses an air conditioner and an air velocity control method for the same. An air diffusion plate for reducing air velocity of outlet air of an indoor unit is arranged at an air outlet of the indoor unit, and an air guide plate is also arranged to regulate the air outlet direction of the indoor unit. The method comprises the following steps of controlling the air conditioner to enter an air sensor-free running mode if no air sensor-free control instruction is received when the air conditioner runs in a cooling mode; acquiring set temperature, and judging indoor environmental temperature according to the set temperature; if the indoor environmental temperature is higher than the set temperature, controlling the air diffusion plate to swing or controlling the air guide plate to move upwards, and controlling rotating speed of an indoor fan to be less than or equal to first preset rotating speed; if the indoor environmental temperature is lower than or equal to the set temperature, controlling the air diffusion plate to be closed, controlling the air guide plate to be opened to a preset air outlet angle, and controlling the rotating speed of the indoor fan to be lower than or equal to second preset rotating speed. According to the air conditioner and the air velocity control method for the same, a comfortable temperature environment can be provided, and in addition, a comfortable indoor air velocity environment can further be provided, so that comfort is improved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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