261results about How to "Improve indoor air quality" patented technology

A method, as well as a controller, for controlling room temperature with a variable air volume system having a plurality of zones wherein the thermal transfer rate with respect to each of such zones is maintained at a substantially constant value notwithstanding changes in the temperature of the supply air thereby providing improved efficiency and environmental comfort.

An air purification system utilizing an ultraviolet germicidal lamp is disclosed. The air purification system is in fluid communication with a ventilation duct. The air purification system may also be in fluid communication with the ambient air. The air purification system may incorporate an actuator for the selection of the ambient air, the ventilation duct, or both as an air source for treatment. The air purification system may also be used to obtain a positive pressure within an enclosed space.

Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room.

A building's Heating Ventilating and Air Conditioning (HVAC) system is made more energy efficient and the indoor air quality (IAQ) of the building's circulating air is improved by incorporating a greenhouse as an integral part of the HVAC system and by utilizing a novel feed forward control strategy that maintains the proper levels of temperature, humidity and CO2 concentration in the building under varying conditions of day, time, use and occupancy.A portion or all of the exhaust air from the building is discharged into a greenhouse where the heat and humidity are recovered in the winter by heating the greenhouse and the air conditioning is recovered in the summer by cooling the greenhouse. Selected plants are used in the greenhouse to remove CO2 and pollutants from the building's exhaust air while enriching the air with oxygen and beneficial negatively charged ions. The oxygenated, improved quality air from the greenhouse is then used to supply all or a portion of the intake air to the building's HVAC system.

A method, as well as a controller, for controlling room temperature within a variable air volume system having a plurality of zones wherein the thermal transfer rate with respect to each of such zones is maintained at a substantially constant value notwithstanding changes in the temperature of the supply air thereby providing improved efficiency and environmental comfort.

This invention provides buildings with a modular air conditioning system that utilizes solar energy for heating air. This invention contains a solar collector assembly, an inlet assembly and an outlet assembly. The solar collector assembly further comprises a transparent panel, a heat-absorbing set and a support base, and forms paths for heating the air, wherein the heat-absorbing set is made of several simple, light-weight modular heat-absorbing units to form several heat-absorbing channels. Such a design not only can fully utilize the heat-absorbing space on the roof and save the cost for being displayed in marketing channels, but also can be constructed by the users in accordance with their own needs, so as to save cost in modularization. The inlet and outlet assemblies communicate to the heat-absorbing channels in the solar collector assembly and are respectively connected to the pipes and paths leading into and out of the buildings. By switching and adjusting the openings of these pipes and paths, in winter, the preheated air will be introduced into buildings; and in summer, the hot indoor air will be expelled out of the buildings and fresh air will be guided into the buildings. As a result, a more economical air conditioning system is formed.

The invention discloses a multifunctional indoor air quality improving device which comprises a shell. An air inlet and an air outlet are arranged on the shell, an air duct connected the air inlet and the air outlet is arranged in the shell, a fan is arranged on the air duct, a sterilization cavity, an oxygen generating device, an ozone generator, an anion generator, a humidity adjustor and a detection control system are arranged in the shell. The multifunctional indoor air quality improving device can improve indoor air from multiple sides and has an automatic adjusting function, so that indoor air quality is constantly maintained optimal and a good indoor environment is provided for people.

The present invention relates to an air-conditioning system with full heat recovery comprising a condenser, an evaporator, a compressor and an expansion valve; one side of the condenser is disposed in a position corresponding to an indoor air outlet and an outdoor air inlet; the other side of the condenser is provided with an exhaust vent; and a cooling fan is disposed between the exhaust vent and a cooling air opening. The present air-conditioning system with full heat recovery can be connected with a condensate recycle system. The present invention utilizes low temperature, low humidity indoor exhaust air as cooling air for the evaporative condenser. It makes use of the sensible heat. (temperature difference) of indoor exhaust air as well as the latent heat (humidity difference) of indoor exhaust air, thereby attaining better condensation effects. It also uses the condensate to assist cooling and increases cooling and water saving effects. The present invention can be widely used in the air-conditioning systems in restaurants, hospitals, supermarkets, villas and offices and has wide applications.

This invention provides a healthcare cum optimal illumination device. The inventive device includes at least one frame, at least one light source, and at least one layer of treated filter cover. The light source is disposed in the frame. The light source emits infrared radiation, visible light radiation, and ultraviolet radiation. The visible radiation is used for illumination, and the invisible infrared and ultraviolet radiation is harnessed to improve indoor air quality. The layer of the filter cover is treated with substances of air cleaning properties and encloses the frame. The treated filter cover has at least one opening where air in the frame heated by the infrared radiation flows out from the device and cooler ambient air surrounding the device is drawn through the filter cover into the frame replacing the heated air that has flown out of the device to form air circulation and to perform air purification.

Disclosed is a functional type wallpaper material having the air purification function, belonging to the interior decoration material technique field, and containing the components, in weight percentage: 1.5 percent to 2.5 percent of titanium dioxide nano-sized powder, 1 percent to 2.5 percent of silicon dioxide nano-sized powder, 0.5 percent to 1.5 percent of zinc oxide powder, 2 percent to 3.5 percent of negative ion powder, 0.5 percent to 1.5 percent of inorganic antibacterial powder, 0.5 percent to 1 percent of iron trioxide, 4 percent to 6 percent of conductive powder, 2.5 percent to 5 percent of polyaniline, 25 percent to 31 percent of polyvinyl chloride, 5 percent to 5.5 percent of titanium pigment, 15 percent to 18.5 percent of di-n-octyl phthalate dioctyl phthalate, 12.5 percent to 18 percent of calcium carbonate, and 3 percent to 30 percent of auxiliary agent. The wallpaper prepared by the materials can remove formaldehyde and peculiar smell, and is antibacterial and mildew-proof, and can release negative ions and resist electromagnetic radiation, as well as greatly improving the indoor air quality for people and solving the indoor air pollution.

The present invention relates to a novel plasma driven catalyst apparatus for disinfecting and purifying air. The apparatus has a synergistically favorable effect from plasma and catalyst on high disinfecting and purifying efficiency and efficacy, low by-product formation, and low energy consumption. The plasma combined with catalyst enhances the production of new active species, increases the oxidizing power of the plasma discharge, as well as activate the catalyst that additionally contributes towards the disinfection and purification process and the elimination of toxic by-products.

A ceiling fan with sterilizing and air cleaner device constructed such that edges of an upper cover and a lower cover lodge into a groove of a securing annular plate which is configured with an array of protruding pieces. A cold cathode ray light tube is fitted within the ceiling fan, and a motor is further mounted within the ceiling fan; the motor connects to fan blades. A turning axle connects to a controller, and a switch is configured on the controller, wherewith the switch controls operation of the motor, brightness and turning off of the cold cathode ray light tube. Upon the ceiling fan rotating, air relatively high in a room is blown downwardly toward the floor and blown through negatively charged oxygen ions are produced by the cold cathode ray light tube, thereby enabling oxygenation of organic substances, consequently enhancing quality of indoor air.

The invention disclsoes an environment management device (10), which is used to control motion statuses of a ventilation device (31) used for the indoor-outdoor ventilation to change the indoor air quality, an air purifier (32) and an air conditioner (33)used for improving the indoor air quality without the ventilation. The environment management device (10) is provided with an air quality acquisition part (13), an indication part (14), a management processing part (15), and an evaluation part (16). The air quality acquisition part (13) can be used to acquire the indoor and outdoor air quality measurement data from an air quality sensor (21). When the management processing part (15) rates the indoor quality as adverse, when the outdoor air quality is better than the indoor air quality, the ventilation device (31) can be started, and when the indoor air quality is better than the outdoor air quality, at least one of the air purifier (32) and the air conditioner (33) is started.

This invention relates to a kind of individual air-supplying adjustment method, which belongs to air conditioning field. When user is not satisfy with the comfortableness of the environment surrounding air conditioner, he / she can adjust or turn the mechanism on air-supplying device of air conditioner to reduce the air-quantity supplying to himself / herself. He / she can meet the comfortable need through changing microenvironment parameters. The total air-quantity supplied from the end device keeps constant or decreases in order to ensure the freshness of indoor air. The air-quantity operation does not consume electric energy. It does not generate noises too. This invention is fit for the air conditioner situations of close range air supplying, high comfortableness need and different comfortableness needs.

An indoor located air distribution device for providing distribution of purified supply air to a service area. The air distribution device with air purifier can reduce the amount of bacteria, viruses, and bad spores inside the service area, can minimize the spreading of bacteria, viruses and spores, and can create overall healthier conditions in the service area. With low energy usage and maintenance cost, an air supply unit with built-in bi-polar air purifier can improve the quality of room breathable air, minimize the amount of outside air in total supply air, and decrease the usage of energy (heating / cooling) and electricity.

A humidity controllable air cleaner for ordinary room or sickroom in air-conditioning room or hospital is composed of showering system, demoistening system, disinfecting system and auxiliary control system. Its advantage is high effect to clean air and kill bacteria and viruses.

The invention provides a hollow fibre membrane air-conditioning water-free humidification system, comprising an air-conditioning indoor unit and a hollow fibre membrane humidifier, wherein the hollow fibre membrane humidifier comprises a shell, an air passage and a water passage, the air passage and the water passage are used for separating a hollow fibre membrane which is placed in the shell, the hollow membrane is a permselective membrane, and water vapor but liquid water can permeate the membrane; and the air-conditioning indoor unit is connected with the water passage by a condensate pipe, part of the condensed water precipitated by the air-conditioning indoor unit enters the water passage of the hollow fibre membrane humidifier by the condensate pipe, the water vapor in the water passage selectively permeates the membrane to the other side of the membrane and then is mixed with the dry air in the air passage to realize humidification, and the humidified air is delivered to the indoor through the air outlet of the air-conditioning indoor unit. The invention fully uses the condensed water, at the same time, only the water vapor but pollutants and impurities can permeate the membrane, and thereby the invention eradicates the 'whiting' phenomenon and improves the indoor air quality.

This invention relates to an air purifier that uses both transportation vehicles battery and conventional indoor power supply, employs ultraviolet radioactive rays to kill bacteria, viruses and molds in the air and to increase amount of anions. This air purifier has an infrared remove controller and a ability of providing illuminations. This air purifier draws indoor air in and out of the air purifier through spiral air pipe, which contains many rifle spiral shape air collectors, kills bacteria, viruses and moulds in the air and discharges electricity by means of negative high voltage output through carbon fibers to produce anions, so as to improve quality of the air.

An HVAC system has two variable-air-volume (VAV) systems, a first VAV system for moving fresh air and a second VAV system for moving recycled air. Both the fresh air and recycled air are cooled and dehumidified by a single heat-exchanging coil. The fresh and recycled air streams travel independently in separate ducts until the air streams reach a remotely located mixing box where the air streams mix and ventilate into a room or zone of a building. The HVAC system uses carbon dioxide and temperature sensors in order to regulate the flow of fresh and recycled air to various mixing boxes throughout the building.

The invention provides a running machine and fitness equipment, and relates to the technical field of living and working. The running machine comprises a frame and a running platform. The running platform comprises a running platform support, a first rotating shaft, a second rotating shaft, a driving device, a running belt and a load-bearing plate. The first rotating shaft is hinged to one end of the running platform support, the second rotating shaft is hinged to the other end of the running platform support, the driving device drives the first rotating shaft to rotate, the running belt is positioned on the first rotating shaft and the second rotating shaft, and the load-bearing plate is covered with the running belt. An air purification device is arranged on the frame, and comprises a shell, an air inlet, an air outlet, a filtration component and an air duct. The air inlet and the air outlet are arranged on the shell, the filtration component is connected with the shell, and the air duct is positioned between the filtration component and the air inlet. The air inlet, the air duct, the filtration component and the air outlet are communicated sequentially. The running machine and the fitness equipment have the advantage that the technical problem that body builders cannot take exercises and build up bodies in a good fitness environment is solved.

The invention discloses a control method and system for air supply of an air conditioner. The method includes the steps that the initial overall indoor people number is measured according to the concentration of indoor and outdoor carbon dioxide; a closed circuit television system is adopted for measuring the real-time overall indoor people number and the real-time people numbers of multiple indoor regions; according to the initial overall indoor people number, the real-time overall indoor people number and the real-time people numbers of the indoor regions, the fresh air amount required indoors is measured; and according to the fresh air amount, the air conditioner is controlled to supply air. The method and system have the beneficial effects that the indoor people distribution condition is accurately measured, the real-time fresh air supply amount of a central air-conditioning fresh air system can be adjusted in real time, the central air-conditioning energy saving effect can be achieved, and the good quality of indoor air is maintained.

The invention relates to an anion engineering plastic and a preparation method thereof, and mainly solves the technical problems that the conventional plastic product is not antiseptic and aseptic, has peculiar plastic smell, cannot be degraded and cannot improve air quality. The technical scheme is that the anion engineering plastic is prepared form the raw materials in percentage by weight: 80 to 85 percent of plastic raw material, 10 to 15 percent of synthetic resin, and 3 to 7 percent of composite anion material. Various decorative materials, such as plastic inside and outside pieces and shells (inner containers) of household appliances, various plastic components in automobiles, various indoor decorative materials for buildings, inner walls and containers of drinking water pipelines, packages of food, clothes, cosmetics and the like can be formed by using the anion engineering plastic through mechanical forming steps such as injection molding, hot pressing, extrusion and drawing, suck moulding and the like. The surfaces of the decorative materials contain materials which can release natural anions continuously.

The invention discloses a hot pressing injection mold for integral hot pressing injection molding of a fibrilia plate and a surface layer thereon. The mold comprises a lower mold, an upper mold and a vacuum pump, wherein the upper mold is movably arranged on the lower mold; a cavity is formed in the upper mold; a core fitting the cavity is arranged on the lower mold; a sealing ring is arranged between the upper mold and the lower mold; multiple through holes are formed in the upper mold, and are respectively communicated with the vacuum pump; and a gate for pouring a material into the core is arranged on the lower mold. The invention further discloses a processing technology. In the hot pressing injection mold and the processing technology provided by the invention, glue is not needed in the processing process, so that the processing technology is simplified; and an injection molding part and a reinforcing rib are integrally formed on the back surface of the fibrilia plate, so that the structural strength is improved.

The invention provides air purification heath protection mud and a production process thereof. The health protection mud consists of a component I and a component II, wherein the component I comprises diatomite, zeolite powder, maifanitum powder, nano zinc oxide, negative ion powder, dispersible latex powder, methyl cellulose and an inorganic pigment; and the component II comprises water, an anti-freezing agent, a dispersing agent, an antifoaming agent, an emulsifying agent, a stabilizing agent, a macromolecule packaging agent, and cypress oil, clove oil or eucalyptus oil. The health protection mud has the effect of eliminating harmful substances such as formaldehyde, benzene and the like and improving indoor geomagnetic intensity, can produce negative ions, has the functions of deodorization, smell elimination, inflaming retardant, sound insulation and noise reduction, and can adjust indoor air humidity.

The invention discloses an air processing device control system based on a cloud platform and a control method of the air processing device control system. The control system comprises air monitoringdevices and air processing devices, wherein the air monitoring devices and the air processing devices are associated with the cloud platform through a network system; and the cloud platform is associated with terminal devices used for controlling the air processing devices to work through the network system. The control method is that the cloud platform controls the air processing devices according to interaction results of the cloud platform and the terminal devices. According to the air processing device control system based on the cloud platform and the control method, great convenience isbrought to a user, namely, the user can control the different air processing devices to work cooperatively at one place; the advantages of the cloud platform are fully utilized, the total production cost of the air processing device control system is greatly reduced, the cost performance of the air processing device control system is greatly improved, and the application and popularization of theair processing device control system are facilitated; the multi-user air processing device control system based on the cloud platform can be realized; and use safety of the system is greatly improved.

A vacuum cleaner includes an electric blower for generating a suction air flow, a suction head in communication with the electric blower for drawing in dirt, a filter bag communication with the electric blower for capturing and collecting dirt, an exhaust unit for discharging exhaust air from the electric blower to atmosphere, and an ion generator for generating negative ions and / or positive ions. The ion generator is placed between the suction head and the filter bag.