Patent ID: 8313706

Claim:
A reactor using a gasket for sealing a spiral, in which a shell ( 120 ) and a jacket ( 150 ) are coupled to each other, the shell and jacket including a nozzle ( 160 ) mounted respectively thereon for allowing fluid to be introduced into and discharged from the reactor ( 100 ) therethrough, wherein the reactor comprises: one or more spirals ( 3 ) continuously installed in the longitudinal direction on the outer circumference of an inner pipe ( 1 ) such that the shell ( 120 ) is positioned between an inner pipe and an outer pipe coaxially arranged to form a flow path for a heat medium between the coaxially arranged inner pipe of the shell and the outer pipe of the shell; and a gasket ( 10 ) coupled to the outer circumference of the spirals ( 3 ) so as to be positioned between the spirals ( 3 ) and the outer pipe ( 2 ) to seal the spirals ( 3 ), wherein the gasket ( 10 ) comprises: a frame ( 20 ) comprising a bottom ( 22 ) and both lateral sides ( 24 ) so that the gasket is opened upwardly to define a channel ( 21 ) therein in the longitudinal direction thereof, the frame being formed of a metal sheet so as to have a “U” shape in cross-section; and a cushion plate ( 40 ) coupled to the bottom of the frame in the longitudinal direction of the frame ( 20 ) so as to be positioned within the channel ( 21 ), the cushion plate being formed of a synthetic resin material, whereby the both lateral sides ( 24 ) of the frame ( 20 ) are fittingly coupled to both circumferential outer sides of the spirals ( 3 ) such that the cushion plate ( 40 ) abuts against the outer circumference of the spirals ( 3 ) in a state in which the spirals ( 3 ) are inserted into the channel ( 21 ).