CIRCULATION HOT BATHING APPARATUS AND ANTIBACTERIAL OPERATION METHOD

Japanese Patent JP3849253

B2

PROBLEM TO BE SOLVED: To perform antibacterial operation of bacteria adhered to a purifying part and a circulation water passage and to improve energy efficiency and purification efficiency by a method wherein when antibacterial operation is effected, after the temp of bath water reaches a given value and a flow passage switching means forms a closed circuit, a circulation pump is operated by a control means and heated bath water is circulated through the closed circuit.
SOLUTION: When a first flow passage switching valve 11 is changed over, a circulation pump 2 is continuously operated but when operation is stopped once, re-starting is effected. Heated bath water flows through a circulation water passage toward a nozzle part 14 and reaches the first flow passage switching valve 11. The first flow passage switching valve 11 is a thermally- actuated valve. Since heat water exceeding a set value is introduced, switching is effected, and a second circulation passage 6 and a circulation water passage 3 are communicated with each other to form a large closed circuit. The heat water is circulated through the large closed circuit and flows through the circulation water passage 3, the second closed circulation passage 6, and a purifying part 4 to increase the temperature of the whole.

Hirofumi Nakamura
Shinji Suematsu
Kazuyoshi Sato

JP27683197A

November 22, 2006

October 09, 1997

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Matsushita Electric Industrial Co., Ltd

A47K3/00; B01D35/027; F24H1/00; C02F1/28; F24H9/00; (IPC1-7): F24H1/00; A47K3/00; B01D35/027; C02F1/28; F24H9/00

JP3075446A
JP9026208A
JP4366351A
JP6165978A
JP2020046U
JP2028708U

Fumio Iwahashi
Hiroki Naito
Daisuke Nagano

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