350results about How to "Large circulation" patented technology

The invention discloses a stirred tank reactor and aims at improving a stirring turbine in the stirred tank reactor by using a four-layer combination stirring turbine. The stirring turbine comprises a first layer turbine, a second layer turbine, a third layer turbine and a fourth layer turbine which are arranged from the middle to the bottom of a stirring shaft sequentially. The first layer turbine is an upward axial flow turbine, the second layer turbine is a disk type turbine, the third layer turbine is an upward axial flow turbine, and the fourth layer turbine is a radial flow turbine. Radial circulation close to a liquid level, radial circulation close to a middle area of a stirred tank and radial circulation in a bottom area of the stirred tank are formed, so that circulation quantity inside the stirred tank is big and mixing time is short. Poor mixing area does not exist, and solid containing rate and gas containing rate are evenly distributed. A mass transfer condition of air and liquid is good, and single transfer efficiency is high. Entrainment quantity of sizing is greatly reduced, fouling of a heat exchanger is reduced, and service life is long. Operation cost is lowered, and production cost is saved.

This invention relates to provisioning wavelength-selective switches and reconfigurable optical add-drop multiplexers to minimize the bandwidth narrowing effect from the optical filters. Novel architectures and methods are disclosed that can significantly reduce bandwidth-narrowing on channels in a reconfigurable WDM network where a large number of optical filter elements are cascaded. Instead of blocking unused channels as in the prior art, unused channels are selectively provisioned depending on the state of their adjacent channels. Unused adjacent channels of an active channel are provisioned to follow the same path as the active channels. As each channels is deployed, the channel frequency is selected so as to minimize bandwidth narrowing.

The invention relates to polytetrafluoroethylene (PTFE) composite film filtering materials for air filtering industry. The polytetrafluoroethylene composite film filtering materials comprise the following components: fiberglass as basement film; polytetrafluoroethylene as surface film; and adhesive agent which is one of polysulfone, nylon 66 and polyvinylidene fluoride fibre for binding the fiberglass and polytetrafluoroethylene; pore-forming material which is one of metal salt KI and NH#-[4]Cl; solvent which is one of dimethyl acetamide, dimethyl formamide and N-methyl pyrrolidone. The content (by weight) of macromolecular compound and pore-forming material is: 5% to 30% of macromolecular compound, 5% to 15% of pore-forming material. The fiberglass and polytetrafluoroethylene composite materials can improve filtration efficiency and have improved hydrophobicity, high-temperature resistance and corrosion resistance.

A charging system is provided which solicits from third parties information about products supposedly infringing on a right holder's lawful right and which, upon exposure of the infringement, acquires royalty revenues from the trespassing party for a reimbursement to any third party having contributed the information on the infringement, whereby right-related information is collected more efficiently and a market on which such information circulates is actively promoted.

This invention relates to a system and a method for broadcasting advertisements in the process of waiting for on-line, in which, the system includes an on-line terminal including a network connection module, an ad storage and a play control module, also an ad server and a network server, in which, the play control module reads ad files from the internal ad storage of the on-line terminal to play it and switches the display screen to the current played ad content when the terminal sends connection to the being accessed server based on the input instruction of the user and waits for returning related data, once it receives data returned back from the network server, it stops playing the ad files and switches the screen to the interface of connecting to the internet.

The present invention provides an integrated process for the production of p-xylene, comprising the steps of A) separating a mixed feedstock containing benzene, toluene, C₈ aromatic hydrocarbons, C₉ and higher aromatic hydrocarbons, and non-aromatic hydrocarbons from a reforming unit, to obtain a first benzene stream, a first toluene stream, a first C₈ aromatic hydrocarbon stream, a stream of C₉ and higher aromatic hydrocarbons, and a stream of non-aromatic hydrocarbons; B) feeding the stream of C₉ and higher aromatic hydrocarbons from step A) to a C₉ and higher aromatic hydrocarbon dealkylation unit, where dealkylation reaction occurs in the presence of hydrogen, and separating the reaction effluent to obtain a second benzene stream, a second toluene stream, and a second C₈ aromatic hydrocarbon stream; C) feeding both the first toluene stream and the second toluene stream to a toluene selective disproportionation unit, where toluene selective disproportionation reaction occurs in the presence of hydrogen to produce a stream containing C₈ aromatic hydrocarbons including p-xylene and benzene, which stream is separated to obtain a third C₈ aromatic hydrocarbon stream, a third toluene stream, and a third benzene stream, with the third toluene stream being returned to an inlet of this unit; D) feeding both the first C₈ aromatic hydrocarbon stream and the second C₈ aromatic hydrocarbon stream to an adsorption separation unit, to obtain a first p-xylene product stream and a fifth C₈ aromatic hydrocarbon stream, with the fifth C₈ aromatic hydrocarbon stream being passed to an isomerization unit; E) feeding the third C₈ aromatic hydrocarbon stream to a crystallization separation unit, to obtain a fourth C₈ aromatic hydrocarbon stream and a second p-xylene product stream, with the fourth C₈ aromatic hydrocarbon stream being passed to the adsorption separation unit or the isomerization unit; and F) feeding an effluent of the isomerization unit to an inlet of the adsorption separation unit.

A minimal quantity lubricating system for a handheld electric power tool is configured to output a lubricating fluid for cooling and/or lubricating a material machining process. The system comprises at least one oscillating unit, an electronic unit for applying at least control and/or feedback signals to the at least one oscillating unit, an operating power unit for providing electric power to the electronic unit, a storage tank for the lubricating fluid, and at least one nozzle associated with the at least one oscillating unit for feeding and atomizing the lubricating fluid in a tool working area. A fluid feed line connects the storage tank to a capillary feed of the lubricating fluid to the oscillating unit, and at least one fluid channel at least partially runs through the oscillating unit to connect the oscillating unit to the nozzle for pulsing the lubricating fluid.

A multi-level sliding sleeve including an outer cylinder, an inner sliding sleeve, a combined ball socket, a guider, an expander, an upper gland, a lower gland, and a ball. The outer cylinder includes internal threads in an upper end and external threads in a lower end, and the outer cylinder including an external wall including a plurality of drainage holes along the peripheral direction. The inner sliding sleeve is mounted to an inner wall of the outer cylinder through shear pins. The inner sliding sleeve includes a plurality of square holes in the middle along the peripheral direction, each of which is equipped with a ball socket inside. The ball sockets combine together to form a combined ball socket. The combined ball socket is equipped with the guider in the upper end and the expander in the lower end.

A combined circulating fluidized-bed boiler is composed of combustion chamber, cyclone separator, throat, material return valve and air distributing plate, and features that said throat can divide the combustion chamber into several combustion chambers for intensifying the combustion of particles in combustion chamber.

The invention relates to a heat pump heating system, a control method and a heat pump water heater. The heat pump heating system comprises a main loop (1), an air supplementing enthalpy increasing branch (2) and a liquid spraying branch (3). The main loop (1) comprises a compressor (11), a condenser (12), a first throttling component (13) and an evaporator (14) which are sequentially connected in the refrigerant flowing direction. One end of the air supplementing enthalpy increasing branch (2) and one end of the liquid spraying branch (3) are both connected to the part, between the condenser (12) and first throttling component (13), of the main loop (1). The other end of the air supplementing enthalpy increasing branch (2) and the other end of the liquid spraying branch (3) are both connected with an air supplementing port of the compressor (11) to supplement gas-phase and liquid-phase refrigerant to the compressor (11). According to the heat pump heating system, the reliability of the system during low-temperature running can be improved.

The invention discloses a ticket check and payment system and a method for urban rail transit financial IC cards. The ticket check and payment system comprises ticket gates used for reading card information of financial IC cards and generating transaction data, clearing center systems used for calculating fees according to the transaction data and generating transaction records, and a financial preprocessing system used for sending payment requests and the transaction records to a CUPS (China Union Pay System) to enable the CUPS to make payment online according to the transaction records and a corresponding bank background system. Financial IC cards are applied to the field of urban rail transit. Based on the fact that financial IC cards have a large circulation and wide coverage, post-payment is adopted. Online real-time verification is avoided. The transaction speed is ensured. Financial IC cards can be used in urban rail transit throughout the country. The demand of the masses for taking the subway fast is well satisfied.

The invention discloses a multi-impellor rotary vane type hydrodynamic cavitation generator and a hydrodynamic cavitation method. The multi-impellor rotary vane type hydrodynamic cavitation generator comprises a box body and a cavitation mechanism. The box body is used for containing liquid, the bottom end of the front side of the box body is provided with a liquid inlet, and the top end of the back side of the box body is provided with a liquid outlet. The liquid inlet and the liquid outlet are correspondingly arranged at the two ends of the diagonal of the box body. The cavitation mechanism comprises a rotating shaft and a plurality of impellors. The rotating shaft is installed in the center of the interior of the box body and driven by an outer-arranged motor. The impellors are coaxially installed on the rotating shaft, and each impellor is composed of a plurality of vanes. The vanes are provided with penetrating through holes. The multi-impellor rotary vane type hydrodynamic cavitation generator has the advantages of being low in energy consumption, high in cavitation efficiency and the like.

The invention relates to a hydrodynamic cavitation generating device which comprises a support unit, a driving unit and a cavitation generating unit, wherein the driving unit is arranged on the support unit; the cavitation generating unit is arranged on the support unit and driven by the driving unit; the cavitation generating unit comprises a container and a rotor, wherein a cavity is formed in the container, the rotor is a current limiting device and is arranged in the cavity, and the rotor can be driven to rotate by the driving unit.

The invention discloses a double-layer composite tube and a manufacturing method thereof. The double-layer composite tube and the manufacturing method aim to solve the technical problems that black pigment is added into traditional HDPE tubes, accordingly inner walls are not smooth, water scale is prone to being generated, bacteria grow, and secondary pollution of water is caused. The double-layer composite tube comprises an inner layer and an outer layer, the inner layer is made of ultrahigh molecular weight polyethylene and ethylene-vinyl alcohol copolymers or low-density polyethylene, and the outer layer is made of high-density polyethylene, ethylene-vinyl alcohol copolymers and special melanin particles C of PE. The method includes the following steps of material proportioning and dehumidifying, material plastifying, material forming, vacuum sizing and spraying and cooling. The double-layer composite tube has the advantages of being good in toughness and flexibility, high in chemical stability, good in corrosion resistance, good in sealing performance, large in distribution power, long in service life, high in low temperature resistance, hygienic, free of toxin and the like. The manufacturing method is simple, easy to operate and capable of achieving integral production of the double-layer composite tube.

The invention discloses an intelligent indoor air replacement and purifying device and method and belongs to the field of indoor and outdoor fresh air purifying devices. The indoor air replacement and purifying device is internally provided with a plurality of filters comprising the heating carbonization ceramic filter, the bilateral rotation draught fan and the conical ceramic filter; the heating carbonization ceramic filter and the conical ceramic filter are spongy micropore ceramic filters; the upper portion of the heating carbonization ceramic filter inclines towards the outer side; the periphery of the intelligent indoor air replacement and purifying device is provided with an automatic sample connection communicating with the interior of a room; the automatic sample connection is provided with a gas detector; the intelligent indoor air replacement and purifying device is internally provided with an electric current detector and further configured with an intelligent controller; the acquisition cost of an air purifying device, the consumable investment and the installation and maintenance cost can be reduced through the intelligent indoor air replacement and purifying device; the air purifying effect of the intelligent indoor air replacement and purifying device is improved; the device manufacturing cost is reduced; and intelligent operation of the air purifying device is achieved.