153results about How to "Consistent flow rate" patented technology

A high pressure osmotic dispense pump (10) having a substantially continuous delivery rate and extended delivery times is described and disclosed. The dispense pump (10) includes a semi-permeable membrane (12) which is substantially free of distortions and lateral stretching stresses. The membrane housing (14) and configuration of the present invention allows for consistent and accurate flow rates at the micro-liter level and improved control of the surface area of the semi-permeable membrane (12). This osmotic pump (10) also includes optional methods for activating and deactivating the osmotic process and/or controlling flow rates. Along with these features, the pump can be amplified or modulated to increase the dispense rate and/or adjust the flow rate during operation.

The invention relates to a generating technology, in particular to a multi-stage jet-type reaction force disc generating system which mainly comprises a leak-off pipe, a jet-type reaction force disc generating set and a disc shell. The generating system is characterized in that the multi-stage jet-type reaction force disc generating set is arranged on a plurality of sections of the leak-off pipes which are connected. One or more than one jet flow pipe is arranged in a reaction force disc which rotates to generate power through tangential-jet reaction force. The system is powered by water, wind or steam. The invention breaks through the traditional generating technology and applies work by the reaction force of fluid, and meanwhile, the invention keeps original kinetic energy, static pressure energy and potential energy of the fluid undamaged to the largest extent to keep applying work to downstream machines, thereby using the kinetic energy, static pressure energy and potential energy of the fluid to apply work again and again; and therefore, by the invention, it is possible that more generating sets can be installed in the same leak-off pipe.

A neonatal enteral feeding system for delivering neonate fluid is disclosed. The system includes a cooling unit for cooling the breast milk before, during and after a feeding cycle to mitigate unwanted bacterial growth and reduction of fat content in the breast milk. The system also includes a warming unit for heating the cold breast milk to a temperature above room temperature (preferably, standard body temperature) so that the neonate can focus his or her energy on healing, growth and digestion instead of heat generation. Additionally, the system has a peristaltic pump which draws the breast milk from a bottom side of the container and the container is vented so as to be capable of delivering all of the breast milk in the container to the neonate.

An injection device for hands-free, transdermal injection of a liquid medicament, configured for easy handling and for manipulation by the use of the hand or fingers of the medical technician The device includes a housing having a base for attachment of the housing to the skin of a patient, an injection needle, and a reservoir for containing a vaccine. The device also has a means for expressing the vaccine from the reservoir through the injection needle that includes a mechanical force means for storing potential energy and exerting a mechanical force, and a hydraulic force means for transmitting the mechanical force into a hydraulic force. The hydraulic force is exerted onto the vaccine in the reservoir, thereby pressurizing and passing the vaccine through the injection needle. The mechanical force means is typically a mechanical spring, and the hydraulic force means is typically a closed hydraulic circuit.

The invention relates to a hot extrusion die of aluminum alloy pipes with multiple output, in particular to the hot extrusion of the aluminum alloy pipes and is formed by assembling and combining an upper die (1) and a lower die (2), wherein, a feeding end of the lower die (2) is provided with a welding chamber (2.1) and a die cavity (2.2) and a discharging hole (2.3) is processed at a discharging end of the lower die (2); the feeding end of the upper die (1) is provided with a decompress counter bore (1.1), and split flow holes (1.2) of the upper die (1) are distributed in a multiplied way with the die cavity (2.2) of the lower die (2) and are positioned at the circumference of the die cavity (2.2) of the lower die (2); all bridge sites (1.3) of the upper die (1) are processed into water drop structure; the discharging surface of the upper die (1) is provided with a plurality of square head die cores (1.5) which are provided with a support lug boss (1.4) among the square head die cores (1.5), and the lug boss (1.4) is closely and directly attached to the bottom part of the welding chamber (2.1) of the lower die (2); the square head die cores (1.5) and the bridge sites (1.3) are transited smoothly. The hot extrusion die can cause the extrusion products of the aluminum alloy pipes to be uniform in wall thickness, consistent in flow rate and high in rate of finished products.

The invention belongs to the technical field of integrated circuit boards, and particularly relates to an integrated circuit board manufacturing method. An integrated circuit board manufacturing and processing device is adopted to perform glue dispensing on the surface of a circuit board. The method specifically comprises the following steps: step 1, placing integrated circuit boards: stacking integrated circuit boards on the upper surface of a bearing plate; step 2, dispensing glue onto the integrated circuit boards: aligning a glue outlet with a position to be dispensed on the integrated circuit boards by adjusting the positions of an electric sliding block and a mounting block, and rotating a motor in a reciprocating manner to drive a rubber plug to move upwards so as to enable silica gel in a dispensing head to flow out of the glue outlet and drop onto the uppermost integrated circuit board; and step 3, moving out the integrated circuit board: pushing the integrated circuit board at the uppermost layer out of an accommodating cavity through a pushing mechanism. When the integrated circuit board manufacturing method provided by the invention is adopted to dispense glue on the surface of an integrated circuit board, the glue dispensing amount and the glue dispensing position can be accurately controlled.

A sizing composition including one or more primary lubricants, at least one secondary lubricant, and at least one coupling agent is provided. The primary lubricant is a fatty amide lubricant that is the condensation product of a saturated fatty acid having at least 16 carbon atoms and a polyamine. Additionally, the primary lubricant acts both as a lubricant and as a cationic surfactant in the size composition when it is neutralized with a weak acid to assist in dispersing the fibers in a gypsum slurry. The secondary lubricant is polyamide or a polyvinyl amine, and acts as a film forming agent in the fiberizing process to protect the glass fibers from interfilament abrasion. The sizing composition provides improved fiber feeding, fiber flow, and fiber dispersion in a gypsum matrix or slurry. The weight ratio by dry solids of primary to secondary lubricant in the size composition is at least 5:1.

The invention discloses a microcystis aeruginosa research device which comprises a water tank, a motor and a lighting system, wherein the water tank is in the shape of an annular column with an upward opening; the motor is arranged in the center of circle of the water tank; an output shaft of the motor is provided with vertical supporting beams; the top ends of the supporting beams are provided with horizontal suspension arm beams; water pushing sheets are arranged below the suspension arm beams and extend into the water tank; and the lighting system is arranged at the periphery of the water tank. The device has the characteristic that a water body has basically consistent flow velocity during an experiment.

Methods for conveying, mixing, leveling, and flaking dewatered pulp to produce pulp flakes suitable to be used in a dryer. Methods for producing a consistent flow rate of pulp, and, for producing uniform pulp flakes in terms of pulp flake size and pulp flake moisture content. A method includes introducing a dewatered pulp to a rotating shaftless screw conveyor. The pulp is deposited from the screw conveyor onto a moving belt conveyor through a chute. The pulp is leveled with a rotary doctor located above the belt conveyor to produce a substantially even rate of mass flow of pulp along a length of belt conveyor. Uniform and consistent quantities of pulp per unit time can then be fed from the belt conveyor to a pulp flaker that then translates into an even rate of pulp mass flow to the dryer.

The invention discloses a hot runner type nonwoven melting and spraying die. The hot runner type nonwoven melting and spraying die comprises a bottom plate, a hot runner manifold, a die head, a spinning plate and two air knives, wherein the bottom plate, the hot runner manifold and the die head are arranged in a transverse direction and are fixedly connected in sequence from top to bottom; a mainhot runner is formed in the hot runner manifold, a sprue bushing is arranged on the bottom plate, the main hot runner communicates with the sprue bushing, and the main hot runner communicates with a bottom groove in the bottom of the die head through a plurality of branch hot runners; the spinning plate is arranged in the die head, a storage tank which corresponds to the bottom groove is arrangedin the spinning plate, and the storage tank communicates with the bottom groove through a shunt filter assembly; a plurality of spinning holes are formed in the bottom of the spinning plate, and the storage tank communicates with the outside through the spinning holes; and the two air knives are located on the front and back sides below the spinning plate. According to the hot runner type nonwovenmelting and spraying die, the bottom groove is uniformly fed through the main hot runner and the branch hot runners in the die head, and the shunting holes are reasonably formed, so that the pressureof hot fluid in the spinning plate is balanced, the flow speed of the spinning holes is consistent, and the nonwoven thickness is uniform.

The invention relates to the field of desulfurization and denitrification devices and discloses a Venturi tube used in a plate type absorption tower. The Venturi tube comprises a Venturi tube body, wherein the Venturi tube body comprises a gas inlet section, a shrinkage section, a diffusion section and an exhaust section which are mutually connected in sequence from left to right; the gas inlet end of the gas inlet section is connected with the gas outlet end of a flue gas conveying pipeline; the shrinkage section comprises an atomization cavity of a flat spherical cavity structure; a plurality of spray guns are uniformly mounted on the outer side of the atomization cavity; and one end of eachspray gun penetrates through the atomization cavity and extends to the inner wall side of the atomization cavity. A liquid fed into the atomization cavity is instantaneously atomized through an impeller which is driven by high-speed air flows, and the atomized liquid is directly sufficiently mixedwith flue gas inside the atomization cavity along with stirring of the impeller, so that compared with conventional co-spraying of liquids and flue gas, atomization of the liquid of the technical scheme is rapid, the atomizedliquid can be sufficiently mixed with the flue gas, and in addition, the contact time of the atomized liquid with the flue gas is long.

The invention discloses a rolled reverse osmosis membrane element with a gradually-reduced inlet channel, which is formed by winding a pure water guide net, a reverse osmosis membrane and an water inlet guide net around a central water production pipe in a superposition mode, and the inlet water guide net and the pure water guide net are respectively arranged in a water inlet channel formed by aninternal surface of the folded reverse osmosis membrane and a water production channel formed by the adjacent external surfaces of the folded reverse osmosis membrane. The rolled reverse osmosis membrane element disclosed by the invention is characterized in that three folding edges are formed at the side of the central water production pipe after the reverse osmosis membrane is folded, the middle folding edge is embedded into the water inlet channel, so that the water inlet channel is divided into front water inlet sub-channels at the upper and lower layers of the central pipe side and a rear water inlet sub-channel at a concentrated water outlet side, and the water inlet guide net is divided into a large water inlet guide net and a small water inlet guide net, the large water inlet guide net is arranged in one of the front water inlet sub-channels and the rear water inlet sub-channel, and the small water inlet guide net is only arranged at the other front water inlet sub-channel. The rolled reverse osmosis membrane element disclosed by the invention has the advantages of simple manufacturing mode, simpleness in implementation, and capability of realizing mass production.

The invention discloses a clothes hanger type non-woven fabric melt-blow mold which comprises a mold head, a spinneret plate and air knives. The mold head is transversely and horizontally arranged inthe length direction, and the spinneret plate is fixedly mounted at the bottom of the mold head. A feeding cavity of a clothes hanger type structure is formed in the mold head, and a sprue bush communicating with the middle position of the upper end of the feeding cavity is arranged at the top of the mold head. A storage trough is formed in the spinneret plate, a division filter assembly is assembled at the top of the storage trough, and the storage trough communicates with the feeding cavity through the division filter assembly. Multiple spinneret holes transversely and linearly distributed are formed in the bottom of the spinneret plate, and the storage trough communicates with the outside through the spinneret holes. The two air knives are symmetrically arranged on the front sides and the rear sides of the spinneret holes. The feeding cavity of the clothes hanger type structure is adopted in the mold head, the feeding resistance of the middle is increased, so that material flow is evenly diffused towards the two sides, the material flow can evenly distributed in a bottom groove, pressure balance is achieved, the flow speed of the spinneret holes is consistent, the thickness of formed non-woven fabric is uniform, and quality is high.

The invention discloses a waste heat utilization heat exchanger, with different tube bundle intervals and bulge densities, of a rotary cement kiln. The heat exchanger comprises a heat exchange tube bundle, a tail gas inlet, a tail gas outlet and a casing, wherein the heat exchange tube bundle is arranged in the casing and is arranged in a diamond way; the casing is provided with a diamond structure matched with the heat exchange tube bundle which is arranged in the diamond way, and is called a diamond casing; the tail gas inlet is formed in a first included angle position of the diamond casing; the tail gas outlet is formed in a second included angle position of the diamond casing; a first included angle and a second included angle of the heat exchange tube bundle arranged in the diamond way are opposite angles; a third included angle and a fourth included angle of the heat exchange tube bundle arranged in the diamond way are opposite angles; heat exchange tube intervals from the tail gas inlet to a connected line between the third angle and the fourth angle are continually reduced; heat exchange tube intervals from the connected line between the third angle and the fourth angle to the tail gas outlet are continually increased. As the heat exchange tube intervals of the heat exchanger from the tail gas inlet to the tail gas outlet are firstly reduced and then increased, the heat exchanger ensures that the tail gas speed keeps constant, reduces the phenomenon of ash deposition, and achieves purposes of environment protection and energy conservation.