Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD AND APPARATUS FOR TREATING DRAIN WATER BY USING NEGATIVE PRESSURE GENERATING MEANS
Document Type and Number:
Japanese Patent JP2008253958
Kind Code:
A
Abstract:

To provide a method for treating drain water from an oil separation apparatus, wherein the inexpensive and compact apparatus is used while sending drain water actively.

The apparatus for treating drain water is composed of a pretreatment tank opened to the atmosphere, a water level-determining means and an airtight posttreatment tank. The posttreatment tank has: a drain water inlet, which is connected to an upstream-side pipeline through a drain check valve, at the lower part thereof; a drain water outlet, which is connected to a downstream-side pipeline through a check valve, on the upper side surface thereof; and a negative pressure generating means, which generates negative pressure according to the determination of the water level judgement means, at the uppermost part thereof. The negative pressure generating means is controlled by an air pressure control circuit according to the water level judgement.


Inventors:
TAKEMAE AKIHIRO
MATSUHASHI TATSU
Application Number:
JP2007000101735
Publication Date:
October 23, 2008
Filing Date:
April 09, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ORION MACHINERY CO LTD
International Classes:
C02F1/28; F04F5/24
Attorney, Agent or Firm:
稲木 次之
加藤 和彦