Abstract: A heat exchanger including: an inlet portion having a first flow path through which a fluid is introduced; a main body including a shell and a plurality of tubes. The shell has an internal space and one surface that has a plurality of penetration holes and a cross-sectional area larger than a cross-sectional area of the first flow path. Each of the plurality of tubes allows the fluid to flow therethrough, and is positioned in the internal space of the shell. An expanded tube portion connects the inlet portion and the one surface of the shell and has a second flow path. The heat exchanger also includes a fluid flow distributor disposed in the second flow path to distribute the flow of the fluid. No other member is disposed between the inlet portion and the multiple ring members.

Abstract: A chute type monomer dispenser is provided in the present disclosure. The chute type monomer dispenser includes a chute dispenser installed to be slanted in a direction of a polymerization apparatus, the chute dispenser is configured to inject a monomer to the polymerization apparatus through an injection pipe having an injection portion having an opening at an upper portion of the chute dispenser; and an injector configured to inject an initiator and a foaming agent to the injection portion.

Abstract: The present invention relates to a dispersion plate and a coating device comprising the same, which provides a dispersion plate comprising a plurality of gas injection holes, wherein the dispersion plate includes a plurality of spout nozzles formed by a dense arrangement of the gas injection holes, wherein one spout nozzle is disposed at the center of the dispersion plate and the plurality of spout nozzles are arranged along a plurality of virtual concentric circles from the center of the dispersion plate to the edge of the dispersion plate, where with respect to two adjacent virtual concentric circles, the number of spout nozzles arranged along an outer concentric circle based on the center of the dispersion plate is twice the number of spout nozzles arranged along an inner concentric circle and the arrangement interval of the spout nozzles arranged along the outer concentric circle is half the arrangement interval of the spout nozzles arranged along the inner concentric circle.

Abstract: The present invention relates to a dispersion device and a defoamation device comprising the same, which provides a dispersion device comprising a dispersion plate equipped with an inclined surface extended downwards obliquely and raw material inflow nozzles formed on the inclined surface to introduce a raw material into the inclined surface; and a band spaced apart from the inclined surface of the dispersion plate to form a gap from the inclined surface, thereby being configured so that the raw material flows through the gap.

Abstract: A baffle apparatus for improving a flow deviation of a fluid due to the enlargement of a flow cross-section of the fluid including a plurality of baffle members. Each of the plurality of baffle members has a first part into which the fluid enters and a second part from which the fluid flows out, the first part and the second part are integrated, the first part of each of the plurality of baffle members is at a position where the flow cross-section of the fluid is enlarged and the second part of each of the plurality of baffle members is at the position where the flow cross-section of the fluid is constant, and ends of the first parts are spaced apart from each other by a distance satisfying the equation: d i = D f ? ( i ) ? ? i = 1 n ? 1 f ? ( i ) , and the second parts are spaced apart from each other by a uniform distance.

Abstract: An apparatus for removing foreign substances in a container includes a conveying device for conveying a container having an opening portion, and a first nozzle for ejecting a gas toward the opening portion of the container, in which the first nozzle is disposed to be spaced apart from an imaginary vertical surface that runs through a center of the container, towards a first side, at a first spacing distance.

Abstract: A chute type monomer dispenser is provided in the present disclosure. The chute type monomer dispenser includes a chute dispenser installed to be slanted in a direction of a polymerization apparatus, the chute dispenser is configured to inject monomer to the polymerization apparatus through an injection pipe having an injection portion having an opening at an upper portion of the chute dispenser; and an injector configured to inject an initiator and a foaming agent to the injection portion.

Abstract: The present invention provides a solid phase extraction method using a micro device having a dam forming portion including a dam, the solid phase extraction method comprising the steps of: (i) injecting a solvent and a filler into the micro device, moving the solvent to the dam forming portion, the dam allowing the solvent to flow therethrough and preventing the filler from passing therethrough, and adsorbing a material to be separated onto the filler in the dam forming portion; and (ii) extracting, from the filler, the adsorbed material, wherein the micro device is rotated with respect to a central axis during one of steps (i) and (ii), and the rotation of the micro device is performed at an angular velocity defined by equation 1.

Abstract: Provided is a water-treatment filter module, an apparatus and a method for manufacturing a helical strand for a water-treatment filter module, and a method for manufacturing a spacer. Also provided is a water-treatment filter module comprising a membrane for filtering raw water, and a spacer laminated to the membrane and providing a plurality of passages for passing the raw water through to the membrane, wherein the spacer includes a first member extending in a first direction and a second member extending in a second direction that is different from the first direction and disposed so as to form spacer cells by intersecting with the first member, and at least one of the first member and the second member is wound in a spiral shape having a predetermined pitch of a predetermined radius around a central axis.

Abstract: A selective catalytic reduction (SCR) system having a catalytic layer. The SCR includes a plurality of baffle members located in a position spaced apart from a front end of the catalytic layer, the plurality of baffle members reduces a flow deviation due to enlargement of a flow cross-section of a fluid in at least one direction, each of the plurality of baffle members includes a first part and a second part, the first part and the second part of each of the plurality of baffle members extends in an orthogonal direction with respect to the at least one direction of enlargement of the flow cross-section, the first part and the second part are integrated, and each of the plurality of baffle members protrudes in an inlet direction of the fluid.

Abstract: The present invention relates to a high pressure homogenizer and a method for manufacturing graphene using the same, and according to one aspect of the present invention, there is provided a high pressure homogenizer comprising a channel module which comprises a microchannel through which an object for homogenization passes, wherein the channel module comprises at least one baffle disposed so as to partition the microchannel into a plurality of spaces and the baffle is provided so as to partition the microchannel into two spaces along the width direction or the height direction.

Abstract: The present invention relates to a distributor and a down flow catalytic reactor comprising same, and according to one aspect of the present invention, provides a distributor comprising: an inside downcomer which has a first flow space; an outside downcomer which is disposed so as to surround at least some area of the inside downcomer, and has a second flow space partitioned from the first flow space of the inside downcomer; and a cap which has a plurality of slots and is mounted on the inside or the outside downcomer so as to enable a fluid that has passed through the slots to flow to at least one flow space among the first flow space and the second flow space.

Abstract: Disclosed herein is a bus bar connected or fastened to a terminal part of a battery pack and fixedly mounted to a battery pack case, the bus bar including a power input part located at one end of the bus bar such that the power input part is connected or fastened to an output terminal part of the battery pack, a power output part located at the other end of the bus bar such that the power output part is connected or fastened to an input terminal part of the battery pack, a plate-shaped main body connected between the power input part and the power output part, the plate-shaped main body including a vapor chamber, and a fastening part formed at the power input part to fix the bus bar to the battery pack case.

Abstract: A reactor is described. The reactor comprises a housing having a reaction space to accommodate a reactant; an outlet pipe connected to a lower part of the reaction space; a rotating shaft disposed in the housing; and a plurality of stirring blades mounted on the rotating shaft. The housing has a lower converging region, and a cross-sectional area of the lower converging region decreases toward the outlet pipe. At least one of the plurality of stirring blades is located in the lower converging region. The outlet pipe includes a first region connected to the lower converging region and a second region extending from the first region in a discharge direction, a cross-sectional area of the first region decreases in a direction from the lower converging region toward the discharge direction, and the second region has a constant cross-sectional area.

Abstract: The present invention relates to an apparatus and a method for producing a polymer latex resin powder, and according to one aspect of the present invention, there is provided an apparatus for producing a polymer latex resin powder comprising a first flocculation tank to which a polymer latex and a flocculant are each supplied, wherein the first flocculation tank is provided with a stirring part including a rotation axis and one or more impellers mounted on the rotation axis, and a discharge line, and the first flocculation tank is configured to operate as a closed system upon operation of the stirring part.

Abstract: A method for manufacturing polysilicon, according to the present invention, is capable of manufacturing polysilicon with high purity more efficiently in such a manner that a high-temperature and high-speed air stream is formed at the center of a reaction tube, and a high-temperature region may be formed by a vortex formed by the high-temperature and high-speed air stream, so that a raw gas supplied from the side wall of the reaction tube flows by the guiding of the vortex, thereby increasing a stay time and a reaction time of the raw gas within the reaction tube. Furthermore, since the inner wall of the reaction tube is provided with a heat release means, the rapid cooling of a silicon crystal deposited on the inner wall of the reaction tube can induce a columnar crystal in which the silicon crystal is solidified in a direction perpendicular to a crystal face, and it is easy to desorb the silicon crystal produced by rapid heat release via the inner wall of the reaction tube.

Abstract: The present invention relates to a high pressure homogenizer and a method for manufacturing graphene using the same, and according to one aspect of the present invention, there is provided a high pressure homogenizer comprising a channel module which comprises a microchannel through which an object for homogenization passes, wherein the channel module comprises at least one baffle disposed so as to partition the microchannel into a plurality of spaces and the baffle is provided so as to partition the microchannel into two spaces along the width direction or the height direction.

Abstract: Provided is a feed spacer, in which angles of strands are differently formed in one feed spacer according to a flow direction of raw water, so that a differential pressure decrease region and a recovery increase region are separated to perform multiple functions, and a reverse osmosis filter module including the feed spacer.

Abstract: A battery module having secondary batteries or unit modules, each having two or more secondary batteries, stacked vertically, wherein the battery module includes a base plate on which the secondary batteries or the unit modules are stacked, a pair of end plates disposed in contact with outer sides of the secondary batteries or the unit modules in which the bottom of each of the end plates is fixed to the base plate, and supporting bars connected between opposite sides of the end plates. The base plate is provided at opposite sides thereof with a pair of upward protrusions extending in a longitudinal direction to prevent deformation due to vertical vibration and to disperse pressure. Opposite sides of the bottom of each of the unit modules are disposed at the top of the upward protrusions.

Abstract: The present invention relates to a reverse osmosis filter module including an improved feed spacer, and particularly, to a reverse osmosis filter module including an improved feed spacer which has an asymmetric diameter in an intersection in which a first set of filaments and a second set of filaments intersect, thereby reducing differential pressure by increasing a cross-sectional area of a flow path, and mitigating concentration polarization by developing a swirl flow.