{TAIL ~ A plurality} of holes having a larger diameter than {HEAD ~ the outer diameter} of the heat transfer tubes are provided in each of a plurality of baffle plates disposed at intervals within the shell wall 
{ TAIL ~ A plurality } of holes having a larger diameter than { HEAD ~ the outer diameter } of the heat transfer tubes are provided in each of a plurality of baffle plates disposed at intervals within the shell wall
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH