Title:
【発明の名称】給湯器の再出湯湯温安定化方法
Document Type and Number:
Japanese Patent JP3322937
Kind Code:
B2
Abstract:
PURPOSE:To control the change in a hot water temperature upon resupply of hot water and to supply a hot water stable in hot water temperature without a cold water sandwich phenomenon by supplying a setting surplus gas larger in quantity than a theoretical quantity of gas required for raising a water feed temperature up to a setting temperature only for a time corresponding to the start-up water quantity. CONSTITUTION:Time To set by a surplus gas supply time setting part 24 and the value of a quantity of surplus gas set by a gas quantity setting part 25 are added to a valve driving control part 27. When an iginition is recognized at the time of t2 by a frame rod electrode 18, the valve driving control part 27 controls the amount of opening of a proportional valve 8 and supplies a quantity of set surplus gas larger in quantity than a quantity of theoretical gas to a burner for time of T0. Then, after time t3 at which the quantity of surplus gas has been supplied, an operation shifts to a feedback control by a PID calculation and an ordinary combustion operating state is obtained. Thus, the undershoot of a hot water temperature can be suppressed. Therefore, the hot water at the temperature small in change of the temperature upon resupply of the hot water can be supplied.
Inventors:
Shuichi Onodera
Hisayuki Watanabe
Miyabi Ishimoto
Hitoshi Hayashi
Hisayuki Watanabe
Miyabi Ishimoto
Hitoshi Hayashi
Application Number:
JP6350393A
Publication Date:
September 09, 2002
Filing Date:
February 25, 1993
Export Citation:
Assignee:
Gaster Inc.
International Classes:
F24H1/10; (IPC1-7): F24H1/10
Domestic Patent References:
| JP6219633A |
Attorney, Agent or Firm:
Kiyoshi Igarashi