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2385 results about "Air channel" patented technology

Free-To-Air, or FTA, channels are satellite television channels that are not encrypted and are, therefore, available to anyone who is able to receive them. FTA channels are not provided by premium satellite companies, but rather open source satellite providers, such as Galaxy, AMC, and Telstar.

Channeling preventing and plugging agent and construction method for controlling plugging and sealing channeling by utilizing channeling preventing and plugging agent

The invention provides a channeling preventing and plugging agent and a construction method for controlling plugging and sealing channeling by utilizing the channeling preventing and plugging agent. The channeling preventing and plugging agent comprises a high-temperature-resistance pre-plugging agent serving as a pre-posed pre-plugging plug, an enhanced gel plugging agent serving as an intermediate enhanced plug and a high-strength resin plugging agent serving as a postposed sealing plug. The channeling preventing and plugging agent has the characteristics of high temperature resistance, long-term stability, good plugging performance and the like. The invention further provides a construction method for controlling plugging and sealing channeling by utilizing the channeling preventing and plugging agent. The method has a simple constructing process, and can be used for constructing after the channeling preventing and plugging agent is directly prepared on the spot. The channeling preventing and plugging agent can be used for effectively solving the adverse impact of the steam/air channeling phenomenon of a heavy oil thermal production well on production, and has an important effect on prolonging the production cycle of a heavy oil well and improving the recovery efficiency.
Owner:PETROCHINA CO LTD

Air cushion cylinder having a sealer of air sealing and locking device and the method for preparing the same

The invention relates to an air buffer having an automatic seal body air shutting-off and locking device and a making method thereof. The air buffer comprises a seal body composed of a continuous film coil and comprising two pieces of external film and two pieces of internal film, a plurality of equidistant heat-resistant nodes made from heat-resistant material are coated on the top of the internal surface of one internal film, and hot seal nodes are arranged at the positions at the same height as the heat-resistant nodes of one external film, and hot seal transversal lines are employed to divide the seal body into aerating channel regions and air storing columns, the aerating channels join the air storing columns through the hot seal lines, an internal film with heat-resistant nodes is arranged on the external film to make the internal film and the external film unjoined to form a sole channel air inlet. When aerating, the air channel portions of the two pieces of external films will expand to draw the internal films joined therewith, thus to allow all the air inlets along the air channels to open indirectly. In this way, a plurality of seal bodies are needed to be aerated, the air inlets are shut off and the air inlet paths are locked after aerating, thereby the air buffer having dual air shutting-off functions and durable seal performance.
Owner:KUNSHAN AIRBAG PACKING CORP

Vibrating isolation foundation precise leveling system

The invention discloses a precise leveling system of a vibration isolation foundation bed. The lower bottom surface of the vibration isolation foundation bed is supported by air springs; a precise optical vibration isolation platform is arranged on the vibration isolation foundation bed; one or two level monitors are arranged on the precise optical vibration isolation platform for measuring an included angle between the vibration isolation platform and the absolute level in two mutually vertical directions; flexible leg monitoring devices are respectively connected with the own air springs; the output ends of the level monitors and the flexible leg monitoring devices are respectively connected with the input ends of controllers; the output ends of the controllers are connected with all control valves; an air channel port of each control valve is respectively connected with the own air spring; air supplying devices respectively supply air for each control valve. The precise leveling system realizes vibration isolation of Grade II; the vibration isolation platform has highly precise planarity and meets requirements of various precision instruments for the environment; the control valves realize the air inflow of a small amount during the charging process of the air springs, improve leveling precision and can keep the system stable. The precise leveling system is applicable to ultra precise measurement and processing.
Owner:CHINA JILIANG UNIV

Embedded burner of household gas cooker with multiple nozzles, high flow rate and full upward air intake

InactiveCN101446415AAchieve independent regulationEasy to replaceGaseous fuel burnerCombustorEngineering
The invention discloses an embedded burner of a household gas cooker with multiple nozzles, high flow rate and full upward air intake. The burner comprises a bottom cup assembly, an inner-outer ring burner head, an outer ring fire distributor cover, and an inner ring fire distributor cover; the inner-outer ring burner and the outer ring fire distributor cover form an outer ring fire chamber and an outer ring fire hole which is communicated with the outer ring fire chamber, and the inner-outer ring burner head and the inner ring fire distributor cover form an inner ring fire chamber and an inner ring fire hole which is communicated with the inner ring fire chamber; the bottom cup assembly is equipped with an inner ring air channel and an outer ring air channel which are communicated with the outside, and the bottom cup assembly is further equipped with an inner ring fire induction tunnel and a plurality of outer ring fire induction tunnels, an inner fire nozzle and a plurality of outer ring fire nozzles which are horizontally arranged; mixed gas outlets of the outer ring fire induction tunnels are communicated with the outer ring fire chamber, and the mixed gas outlets of the inner ring fire induction tunnel is communicated with the inner ring fire chamber. The burner realizes independent regulation of the inner fire and the outer fire, and the full upward air intake, and has the advantages of high heat flow, stable gas supply, thorough burning and high burning power. The burner has larger fire holes for burning, which facilitates to change into different fuel gases.
Owner:刘一飞

Octopus tentacle imitating adaptive capture soft manipulator and capture method thereof

The invention discloses an octopus tentacle imitating adaptive capture soft manipulator and a capture method thereof. The octopus tentacle imitating adaptive capture soft manipulator mainly comprises a tentacle, an air pipe, an electrical proportional valve, strain gages and a magnetic valve, wherein the tentacle imitates the shape of an octopus tentacle and is in an irregular strip cone shape, a tentacle protrusion with a large diameter is arranged at the end of the tentacle, groups of ellipsoidal pressure regulating cavities are evenly distributed in the tentacle, main air channels are distributed along the axle direction of the tentacle in the tentacle, each row of ellipsoidal pressure regulating cavities distributed along the axial direction corresponds to a main air channel, the main air channels do not directly pass through the ellipsoidal pressure regulating cavities and are connected with the ellipsoidal pressure regulating cavities through branch air channels, magnetic valves are arranged at the positions of the branch air channels for connecting the ellipsoidal pressure regulating cavities and the main air channels, the strain gages are placed between each two groups of the ellipsoidal pressure regulating cavities, the ellipsoidal pressure regulating cavities produce different shape changes so as to control tentacle to bend through feedback of signals of the strain gages and match between the magnetic valve and the electrical proportional valve, and the tentacle winds objects by controlling a plurality of groups of the pressure regulating cavities.
Owner:BEIJING UNIV OF CHEM TECH

Wall-mounted type air purifier based on thermal regeneration and purification method thereof

The invention belongs to the field of indoor air purification and relates to a wall-mounted type air purifier based on thermal regeneration and a purification method thereof. The purifier comprises a sealed cabin, a draught fan, an air channel body which is composed of a plurality of air valves, a low efficient filter, efficient reproducible volatile organic compounds (VOCs) absorption module, a formaldehyde absorption module, a heating wire, a VOCs sensor, a temperature sensor, and a programmable logic controller; the sealed cabin of the air purifier comprises an air purification chamber and a heating regeneration chamber; the low efficient filter, the efficient reproducible VOCs absorption module, the formaldehyde absorption module, the draught fan and the VOCs sensor are installed in the air purification chamber of the sealed cabin from bottom to top; the heating wire and the temperature sensor are installed in the heating regeneration chamber from top to bottom; the programmable logic controller is connected with the draught fan, the temperature sensor, the VOCs sensor and circuits of the multiple air valves. The purification method comprises four modes of purifying, thermal regenerating, pollution discharging and fresh air, and further comprises two functions of indoor purification and mechanical ventilation. According to the wall-mounted type air purifier based on thermal regeneration and the purification method thereof, indoor VOCs and indoor formaldehyde can be purified quickly, continuously and effectively, and the service life of the wall-mounted type air purifier is prolonged.
Owner:TSINGHUA UNIV
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