Abstract:
A treater oven for drying a prepreg includes: a pipe conduit configured such that the prepreg is able to pass therethrough; a the first structure connected to one side of the pipe conduit and supplying heated air to the pipe conduit; and the second structure connected to the other side of the pipe conduit and discharging the heated air from the pipe conduit. The first structure includes: an air supply portion connected to a heat exchanger and supplying the heated air; an air distribution discharge portion discharging the heated air supplied from the air supply portion through a pair of discharging outlets in both sides of the prepreg; and at least one perforated plate symmetrically disposed in air passageways of the air distribution discharge portion.
Abstract:
Disclosed is a shell-and-tube reactor or heat exchanger, which alternately comprises a doughnut-type baffle plate and a first disc-type baffle plate in order to increase heat transfer efficiency. In the reactor or heat exchanger, a second disc-type baffle plate is placed in an empty space inside of the doughnut-type baffle plate, and some tubes, through the inside of which a first object for heat transfer with a heat transfer medium, are present in a region inside of the doughnut-type baffle plate and outside of the second disc-type baffle plate. Also disclosed is a method for producing an oxide, comprising: using said reactor or heat exchanger, and causing a catalytic vapor-phase oxidation reaction in the tubes, through the inside of which the first object for heat transfer with the heat transfer medium is passed.
Abstract:
Disclosed is an annular distributor having: an annular slit layer that is mounted on an inner circumferential surface of the annular distributor and has at least one slit discharging or introducing a fluid; at least one opening that is formed on an outer circumferential surface of the annular distributor and is connected with any one of a fluid supply duct and a fluid discharge duct; and at least one guide vane selected from three types of guide vanes that are installed in the annular distributor, and splits a flow rate of the fluid supplied from the duct or collects a flow rate of the fluid discharged to the duct. And disclosed are a reactor or heat exchanger has the annular distributor, and a method of producing unsaturated aldehyde or unsaturated acid from olefin by catalytic gas phase oxidation in the reactor.
Abstract:
Disclosed are an annular-type distributor having a multiple slit layer including at least two annular layers, which are stacked while being spaced by a predetermined distance and in which at least one slit is formed so as to receive or discharge fluid; a reactor or a heat exchanger having the annular-type distributor; and a method of producing unsaturated aldehyde or unsaturated acid from olefin by catalytic gas phase oxidation reaction using the reactor.
Abstract:
Disclosed is a shell-and-tube reactor or heat exchanger comprising: first tubes, through the inside of which a first object for heat transfer with a heat transfer medium is passed, some of the first tubes being provided in a zone in which a flow of the heat transfer medium (parallel flow) parallel to the axis of the tubes is present; and a second tube, through the inside of which the first object is not passed, the second tube being provided in said zone such that it is parallel to the axis of the first tubes. Also disclosed is a method for producing an oxide, comprising using said shell-and-tube reactor or heat exchanger, and causing a catalytic vapor-phase oxidation reaction in first tubes, through the inside of which the first object for heat transfer with the heat transfer medium is passed.