Vaporizer of low-temperature liquefied gas

A vaporizer (10) for low-temperature liquefied gas of the present invention is provided with a plurality of vaporizing tube blocks (11) each having a plurality of vaporizing tube panels (16) in which a plurality of vaporizing tubes (21) for vaporizing a low-temperature liquefied gas flowing therethrough by exchanging heat with the outside is arranged in a vertical plane, each of the vaporizing tube panels (16) being arranged in a direction perpendicular to the vertical plane, a dispensing tube (12) connected to each of the vaporizing tube blocks (11) that dispenses the liquefied gas to each of the vaporizing tube blocks (11), a collecting tube (14) that is connected to each of the vaporizing tube blocks (11) and collects and sends out the liquefied gas vaporized in the vaporizing tube block (11), and inter-block pulsation suppression means (13) that suppresses propagation of pressure pulsation in the vaporizing tube blocks (11) mutually connected by the dispensing tube (12) and the collecting tube (14).