Fluid heating device

摘要

The present invention relates to a fluid heating device which can instantaneously heat a fluid which is flowing for the purpose of supply or circulation. It comprises: a ceramic heater in the form of a flat plate having terminal lead wires for applying a power source; partition plates, to top and bottom of the ceramic heater, which allow the fluid which is to be heated to move towards the ceramic heater and which said partition plates have horizontal-movement fluid pathways such that fluid which has been heated by means of the ceramic heater is discharged; a flow path forming plate having a fluid through path such that the fluid on the horizontal-movement fluid pathways can move vertically to the fluid pathway of the next layer; an upper cover having an inlet hole for the supply of a fluid for heating the outside surface of the uppermost partition plate; and a final lower cover having an outlet hole for discharging the heated fluid onto the outside surface of the lowermost partition plate.

主权项

1. A fluid heating device comprising:
a planar ceramic heater having a first through-hole formed therein; upper and lower first planar plates respectively formed on upper and lower faces of the heater, the upper and lower first planar plates having upper and lower first horizontal linear fluid-flow channels formed therein respectively; upper and lower second planar plates respectively formed on an upper face of the upper first planar plate and an lower face of the lower first planar plate, the upper and lower second planar plates having upper and lower second through-holes formed therein to fluid-communicate with the upper and lower first horizontal linear fluid-flow channels respectively; an upper cover formed on an upper face of the upper second planar plate, the upper cover having a fluid inlet hole formed therein to communicate with the upper second through-hole; and an lower cover formed on a lower face of the lower second planar plate, the lower cover having a fluid outlet hole formed therein to communicate with the lower second through-hole, wherein an aspect ratio of a cross-sectional area of a heating flow path corresponding to the upper and lower first horizontal linear fluid-flow channels adjacent to the planar ceramic heater is set such that an width (w) of the heating flow path is three times greater than a height (h) of the heating flow path, and wherein area ratio of a heating surface per unit volume and flow speed per unit flow rate of fluid of the heating flow path are increased.