74 results about "Branch Duct" patented technology

A milling tool includes a rotary cutting head having an end surface in which grooves are formed. The grooves communicate with a duct extending coaxially completely through the center of the cutting head to conduct cooling / lubricating fluid to cutting inserts mounted at outer ends of the grooves. The grooves induce a flow of fluid from inner ends of the grooves to the outer ends in response to rotation of the cutting head. A removable deflector can be attached to the end surface to deflect fluid from the main duct to the grooves.

A device is provided for chromatographic separations comprising a manifold comprising a plurality of connectors for connecting to one or more chromatographic separation columns and / or feed or extraction tubing. At least one central duct is formed between at least two connectors forming an inlet and an outlet respectively. The central duct comprises a closable duct valve; and a plurality of branch ducts branching from the central duct to a branch connector. The branch duct comprises a closable branch valve, wherein at least one branch duct is positioned between the inlet and the central duct valve and wherein at least one branch duct is positioned between the outlet and the central duct valve. The device is arranged for carrying out single-column and (continuous) multicolumn chromatographic separations. This allows the purification of biopharmaceutical products without having to develop, demonstrate and validate cleaning procedures for the valves.

A non-excavation lining repair method for the repair of lower drainage branch pipes of urban roads, comprising: (1) cleaning and testing the lower drainage branch pipes; - 0.5mm polyester film, the inside of which is made of polyester non-woven fabric and filled or impregnated with unhardened thermosetting resin; (3) After cutting the resin hose to the same length as the drainage branch pipe, Flip inside and outside on the ground and drag it into the drainage branch pipe; (4) Send a pressure bag into the resin hose, and pressurize it with water or air to make the resin hose expand and stick to the inner wall of the lower drainage branch pipe; (5) Warm water circulation heating is carried out in the pressure bag, and a hardened high-strength lining new pipe is formed on the inner wall of the drainage branch pipe to be repaired; (6) The air and water in the pressure bag are removed and taken out from the new lining pipe. According to the present invention, the pressure pack can be reused, and the drainage branch pipe can be repaired without excavation on the road surface when the size of the rainwater grate is very small and the end cutting cannot be performed.

A fuel supply duct, which supplies a mixed fluid of a solid fuel and carrier gas to one or more burners provided on the walls of a furnace, is provided with a branching part, and each of a plurality of branch ducts, which branch out from the branching part, is connected to a corresponding burner. Also a damper, with which the tilt angle with respect to the direction of flow of the mixed fluid can be changed, is positioned in the fuel supply duct at the upstream side of the branching part so that a mutual difference will arise in the solid fuel concentrations of the mixed fluid supplied to the respective branch ducts. A fuel distributor for fuel supply duct is thus arranged. The tilt angle of the above-mentioned damper is adjusted to increase the concentration of solid fuel in the mixed fluid supplied to a specific burner. At a burner to which the high solid fuel concentration is supplied, stability of ignition and stable combustion of the ignited flame can be obtained during low load operation.

The invention provides an accurate air supply energy saving system of a machine room. The accurate air supply energy saving system of the machine room comprises a static pressure cabin, an air supply duct and a plurality of air supply cabins, wherein the inlet of the static pressure cabin is mutually connected with the air outlet of an air conditioning unit; the outlet of the static pressure cabin is mutually connected with the air supply duct; the air supply duct is mutually connected with the inlets of the air supply cabins through a plurality of branch ducts; the air supply cabins and cabinets are fastened together; the outlets of the air supply cabins are respectively communicated with the interiors of the cabinets and are used for supplying cold air into the cabinets; and intelligent volume dampers are respectively arranged between the air supply cabins and the branch ducts. By a working mode that equipment is cooled and then the environment is cooled, variable-volume accurate air supply that cold volume is distributed as needed according to the heat of a stand is realized by the accurate air supply energy saving system of the machine room according to the requirements of the heat productivity of different cabinets by adopting a mode of closing cold channels, thus, not only is the potential safety hazard brought by the hot area of the machine room avoided but also the cold volume of the machine room is reasonable distributed; the utilization efficiency of the air conditioner is greatly increased; and the electric energy is saved.

A navigation guide wire (1 ) through an anatomical apparatus, for example a vascular system, unusually capable of being safely positioned proximate to bifurcations, comprises: - an elongated body (19) having a proximal end (21 ), a distal end (20), and a longitudinal extension along an axis (x-x) extending at least from said proximal end to said distal end; - at least one first proximal portion (4) having a predetermined first flexural rigidity (KfI ) capable of a first predetermined flexure in at least one plane comprising at least one portion of said longitudinal axis in order to allow a first curvature to said proximal portion when bending stressed, while ensuring a predetermined elastic return in a rectilinear position of the elongated body proximal portion when not subjected to stresses; - at least one second distal portion (3) having a predetermined second flexural rigidity (Kf2), the amount of which is equal to or higher than said first flexural rigidity of said at least one first proximal portion, capable of a predetermined flexibility of said second distal portion in order to obtain a second curvature when bending stressed in at least one plane comprising at least one portion of said longitudinal axis, while ensuring an elastic return to a rectilinear position of said distal portion of said elongated body when not subjected to stress; - at least one intermediate length (6), arranged between said first proximal portion and said second distal portion, having a third flexural rigidity (Kf3) essentially lower than said first flexural rigidity (KfI ) and said second flexural rigidity (Kf2), which allows a predetermined flexibility capable of a third curvature substantially more pronounced compared to said first curvature and second curvature, so as to allow a considerable direction change between said first proximal portion (4) and said second distal portion (3).

A riffle distributor assembly for influencing the travel properties of a material feed stream 42 moving between a pulverizer 14 and a furnace 12 is part of a feed path 36 having one duct 44A having a branch entry 66A and another branch duct 44C having a branch entry 66C both downstream of upstream passage peripheries UPZ defined between adjacent intake vanes 114 through which the feed stream of the material 42 travels in two segregated portions. A motor drive assembly 58 moves the intake vanes 114 relative to the incoming flow reference axis IFA, whereupon intake areas defined between adjacent intake vanes 114 moves relative to the incoming flow reference axis IFA such that the travel properties of the one portion of material in the one branch duct 44A are different than its travel properties before the movement of intake areas defined between adjacent intake vanes 114.

The invention relates to the technical field of coal mine safety production, and specifically relates to a three-proof device in the drilling process. The three-proof device comprises a drainage conduit, a gas-water separating deslagging tank, and a gas filtering water tank, wherein one end of the drainage conduit is a slag inlet, and the other end is communicated with a drilling machine cooling water, the lower part of the drainage conduit is communicated with the gas-water separating deslagging tank, the gas-water separating deslagging tank is communicated with the gas filtering water tank, the lower part of the gas-water separating deslagging tank is provided with a water-slag discharging part, the lower part of the gas filtering water tank is provided with a drain pipe with a valve, the top end of the gas filtering water tank is provided with a negative pressure drainage nozzle stub, and the negative pressure drainage nozzle stub is connected with a mine branch duct drainage system. The gas-proof, the dust-proof and fire-proof functions of the drilling hole are integrated so as to improve the security and reliability of the mine underground operation and lay the foundation for the safety development of the mine and the harmonious the mine area construction.

A fuel supply duct, which supplies a mixed fluid of a solid fuel and carrier gas to one or more burners provided on the walls of a furnace, is provided with a branching part, and each of a plurality of branch ducts, which branch out from the branching part, is connected to a corresponding burner. Also a damper, with which the tilt angle with respect to the direction of flow of the mixed fluid can be changed, is positioned in the fuel supply duct at the upstream side of the branching part so that a mutual difference will arise in the solid fuel concentrations of the mixed fluid supplied to the respective branch ducts. A fuel distributor for fuel supply duct is thus arranged. The tilt angle of the above-mentioned damper is adjusted to increase the concentration of solid fuel in the mixed fluid supplied to a specific burner. At a burner to which the high solid fuel concentration is supplied, stability of ignition and stable combustion of the ignited flame can be obtained during low load operation.

A biomedical line union device for administering pharmacological substances, comprising a union body with: at least one main duct thereinside, provided with at least one outlet associated with a conveyance line or with a closed container, and at least one branch duct, provided with at least one branching port associated with a line for administering a pharmacological substance and connected to the main duct by at least one connecting port. The device comprises at least one valve element, arranged proximate to the connecting port and movable between a closed configuration, in which it interrupts the connection between the branch duct and the main duct, and an open configuration, in which it provides the connection between the branch duct and the main duct due to an overpressure within the branch duct with respect to the pressure within the main duct, and vice versa.

An air duster duct is formed to branch off at an intermediate portion along the length of an air duct which connects a compressed air supply source with a pneumatic tool. A valve mechanism having a selector valve and an operating device is provided at the branch portion. The sector valve can shift to a first position where the selector valve opens an upstream side duct which communicates with the air supply source to a downstream side duct which communicates with a nailing machine and shuts the upstream side duct relative to the air duster branch duct and a second position where the selector valve shuts the upstream side duct relative to the down stream side duct and opens the upstream side duct to the branch duct. The selector valve is operated from the outside by the operating device.

A multi-functional cleaner is disclosed. In the multi-functional cleaner of the present invention, a heating chamber (40), in which a heating plate (41) is provided, is defined below a water supply tank (30), which is installed between a main body (10) and a cover (20). A stop cap (50) is fitted over a steam discharge duct (31) of the water supply tank (30). A hollow steam guide duct (11) is provided in the steam discharge duct (31) at a position spaced apart from the steam discharge duct (31), and the steam guide duct communicates with a branch duct provided in the main body. A display panel and a subsidiary power supply connector are provided at predetermined positions in the upper surface of the cover. A handle connector (60), into which a handle rod (63) is fitted, is coupled to opposite ends of the cover using removable coupling hinges (61).

A vacuum pump (P0) provides vacuum to a paper machine deaeration tank (11) which has an inlet duct (10) through which the tank is supplied with wire water. A discharge duct (12) extends from the deaeration tank (11). There is an overflow (14) for the wire water in the discharge duct at the discharge end of the discharge duct (12). The overflow (14) of the discharge duct (12) is located below the deaeration tank (11) and opens to a free air space. The discharge duct (12) includes a branch duct (15a1) for a flow which is passed to the headbox (100).