Sink with oil content recovery function
A sink with an oil content recovery function, comprises a separation vessel for separating oil content from sewage water based on the difference in specific gravity between the oil content and water, a water storage vessel forming a letter U-shaped passage as a whole together with the separation vessel and storing sewage water sent from the separation vessel up to a predetermined water level, a water discharge portion for discharging water flooding from the water storage vessel, and open/close means for recovering oil content that floats in the separation vessel.
1 . A sink comprising:
a separation vessel into which wastewater flows, therein separating oil content from said wastewater based on the difference in specific gravity between said oil content and water;
a water storage vessel forming a letter U-shaped passage as a whole together with said separation vessel and storing said wastewater sent from said separation vessel up to a predetermined water level;
a draining means to make flooding water from said water storage vessel flow out; and
an open/close means for recovering said separated oil content floating, inside said separation vessel, at space corresponding to said predetermined water level.
2 . The sink as claimed in claim 1 ,
wherein said draining means has a structure with a buffer vessel, which is formed between said separation vessel and said water storage vessel, for buffering a stream of said flooding water.
3 . The sink as claimed in claim 1 ,
wherein said separation vessel and said water storage vessel are adjacent each other with a common partition member for forming said letter U-shaped passage, and said draining means has a structure with an inlet formed at position of said predetermined water level on a circumferential side wall of said water storage vessel and a pipe-shaped member formed out so as to connect said inlet and outside of said water storage vessel.
4 . The sink as claimed in claim 1 ,
wherein said separation vessel and said water storage vessel are adjacent each other with a common partition member for forming said letter U-shaped passage, and- said draining means has a structure with an inlet formed at position of said predetermined water level within said water storage vessel and a pipe-shaped member formed therein so as to connect said inlet and outside of said water storage vessel.