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Patent Searching and Data

Document Type and Number:
Japanese Patent JP2677099
Kind Code:
PURPOSE:To furnish a heat exchanging apparatus coping with abnormality of detectors which measure the quantity of heat exchange. CONSTITUTION:A heat exchanger conducting heat exchange between a primary- side heat medium and a secondary-side heat medium is provided and detectors 12 constructed of a heat medium flowmeter 8, an inlet-side temperature sensor 10 and an outlet-side temperature sensor 11 are disposed at a heat medium flow passage of this heat exchanger. An arithmetic device 22 computing and integrating detection signals of these detectors 12, an integrated value data storage device 24 and an average value data storage device 25 are provided, while an abnormality determining device 23 for the detectors 12 and a time- counting device 27 for the time of abnormality are provided. Integrated value data are displayed in a display unit 20 at an ordinary time, while average value data and counted time data are displayed in the display unit 20 through the intermediary of a display switching device 26 when any abnormality occurs in the detectors.

Tokumoto Tsutomu
Yuichi Tanaka
Takuyuki Yajima
Kiyoma Yamagishi
Tsuneo Ogushi
Application Number:
Publication Date:
November 17, 1997
Filing Date:
February 07, 1992
Export Citation:
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Tokyo Gas Co., Ltd.
Sanyo Electric Co., Ltd.
International Classes:
F24D3/00; F24D10/00; F24D19/10; F28D21/00; (IPC1-7): F24D3/00; F24D10/00; F24D19/10; F28D21/00
Attorney, Agent or Firm:
Yukio Ogata