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Title:
FLOW CONTROL METHOD AND FLOW CONTROL DEVICE USING GATE
Document Type and Number:
Japanese Patent JP2012225049
Kind Code:
A
Abstract:

To provide a flow control method and a flow control device using a gate which can achieve a stable flow control quickly even in any form of outflow by identifying a target opening with respect to a target flow rate at the time of free outflow and submerged outflow in flow control by the outflow at the gate bottom edge.

In a flow control method using a gate in which a flow rate in a river channel and a water passage is controlled by the outflow at the gate bottom edge, a secondary side water depth h2 of a gate 1 with respect to a target flow rate is predicted and set according to flow-down characteristics of the river channel and the water passage, and the gate opening is controlled by using the gate operation opening calculated by using the measured value of a primary side water depth h1 of the gate 1, the predicted set value of the secondary side water depth h2 of the gate 1, and the target flow rate, as a target value.


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Inventors:
TAKITA SHIGEO
NUMANO KENICHIRO
SHINODA TEPPEI
Application Number:
JP2011093454A
Publication Date:
November 15, 2012
Filing Date:
April 19, 2011
Export Citation:
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Assignee:
EBARA CORP
EBARA DENSAN LTD
International Classes:
E02B7/20
Domestic Patent References:
JPS58218505A1983-12-19
JPS6383309A1988-04-14
JPH06117888A1994-04-28
JPH08100771A1996-04-16
JP2000276235A2000-10-06
JPH07238526A1995-09-12
JP2006184206A2006-07-13
JPS58218505A1983-12-19
JPH0892946A1996-04-09
Attorney, Agent or Firm:
Ryohei Kaizuka
Takashi Kumagai
Masato Ota



 
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