US 2013/0092522 A1Published application

Pure Liquid Manufacturing Apparatus

OwnerHaruo Ueharainventor

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Abstract

Provided is a pure liquid manufacturing apparatus capable of manufacturing pure liquid such as pure water efficiently. Together with a series of units, from a heating unit to a condensation unit, for obtaining pure liquid from vapor, a drain tank unit for storing liquid is disposed, after the liquid discharged from the vaporization unit and the separation unit and new liquid are mixed in advance in the drain tank unit, the mixed liquid is pressurized by a pump unit and supplied to the heating unit. Consequently, the drain tank unit serves as a buffer for pressure, thus making it possible to maintain easily the pressure in the respective units such as the vaporization unit, etc., and reduce load of a vacuum exhaust unit to ensure a reduced pressure state, and dispose the required minimum valves for maintaining the pressure, thereby achieving the simplification of the apparatus structure.

Claims4

Dependent claims

A pure liquid manufacturing apparatus, which comprises:

a heating unit that heats supplied liquid by heat exchange with a predetermined high temperature heat source to prepare liquid and/or vapor having a predetermined temperature;
a vaporization unit to which the liquid and/or vapor obtained by said heating unit is to be supplied and that vapors at least said liquid in a decompression space and supplies vapor;
a separation unit that collects the liquid contained in the vapor supplied from said vaporization unit to remove the liquid;
a condensation unit that causes the vapor via said separation unit to be subject to heat exchange with a predetermined cooling liquid to condense it to obtain pure liquid;
a drain tank unit that collects a remaining liquid, which has not been vapored by said vaporization unit, and the liquid, which has been removed by said separation unit, to temporarily store the liquid;
and
a pump unit that pressurizes the liquid in said drain tank unit to supply it to said heating unit,
wherein:
liquid is newly supplied from a predetermined liquid supply source to said drain tank unit, and a mixed liquid of said liquid as newly supplied and the liquid from said vaporization unit and said separation unit in a mixed state is supplied from the drain tank unit through the pump unit to said heating unit.

6 more elements

Dependencies are inferred from the claim text.