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    • 3. 发明专利
    • AIR CONDITIONING AND HOT-WATER SUPPLYING DEVICE
    • JPH0719535A
    • 1995-01-20
    • JP16679693
    • 1993-07-06
    • TOKYO GAS CO LTD
    • IZUMISAWA SUSUMUMUNETA YOSHIHIRO
    • F24D17/00F24F5/00
    • PURPOSE:To make it possible to effect heating even during cooling operation and dehumidification while the temperature of the room is kept comfortable by connecting to hot-water supply circulation piping an auxiliary heat exchanger incorporated in a room unit in a setup to operate it by utilizing the supply of hot water and control its operation which can either be independent or in conjunction with a cooling/heating heat exchanger. CONSTITUTION:Chilled or hot water produced by a chilled/hot water-producing device 1 is circulated by air-conditioning circulating pipings 2, 2a and, through branch pipings 5, 5a, circulated in a cooling/ heating heat exchanger 4 in a room unit 3 in each dwelling unit to effect air conditioning; on the other hand, hot water in a hot-water supply unit 6 is used for the supply through a hot-water supply branch piping 9 from a hot-water supply circulation piping 7 and through a hot-water cock 8. An auxiliary heat exchanger 10 is incorporated in the room unit 3 and connected to the hot-water supply circulation pipings 7, 7a by auxiliary branch pipings 11, 11a in a setup to utilize the heat of hot water supplied and enable a controller 12 to operate the auxiliary heat exchanger 10 independently or in conjunction with a cooling/heating heat exchanger 4 in the room unit 3.
    • 8. 发明专利
    • DUCT FOR AIR CONDITIONING
    • JPH0618081A
    • 1994-01-25
    • JP17299192
    • 1992-06-30
    • TOKYO GAS CO LTD
    • IMAMURA MINORUTANAKA SHIGEOMUNETA YOSHIHIROHIKASA YASUSHI
    • F24F13/02F25B41/00
    • PURPOSE:To permit the reduction of the diameter of a duct for air conditioning as mush as possible by a method wherein the inside diameter of the main body of the duct is designed so as to meet a heating load and refrigerant piping is effected together with the duct while the outside of the duct and piping is covered integrally by insulating material. CONSTITUTION:The diameter of the main body 1 of a duct is determined so as to meet a heating load and refrigerant pipelines 2 are constituted of a pair- tube type pipeline, arranged along the main body 1 of the duct. The main body 1 of the duct and the refrigerant pipelines are coated integrally by insulating material 3. In this case, hot-air is sent into a room through an outlet port 11 by the fan 10 of an indoor machine 8 through the inside of the main body 1 of the duct and refrigerant is sent into the heat exchanger 9 of the indoor machine 8 through the inside of the refrigerant pipes 2 to produce cold air by the fan 10 and send it into the room through an outlet port 11. The diameter of the main body 1 of the duct can be reduced without any trouble in such a manner.
    • 10. 发明专利
    • SUCTION BOX PROVIDED WITH AIR CLEANING FUNCTION
    • JPH07305864A
    • 1995-11-21
    • JP11746894
    • 1994-05-09
    • TOKYO GAS CO LTD
    • MUNETA YOSHIHIRO
    • F24F3/16B01D46/00
    • PURPOSE:To provide a suction box provided with air cleaning function and a duct air-conditioning device, capable of removing fine powder dust and facilitated in maintenance. CONSTITUTION:A suction box provided with an air cleaning function is provided with a box main body 1, an indoor air suction port 21, provided on the first surface of the box main body 1, a removable suction grilled// 3, covering the same suction port 21, an outside air suction port 23, provided on the second surface of the box main body 1, a circulating air sending port 25, provided on the third surface of the box main body 1, and an air cleaning machine 2, incorporated so as to be faced to the circulating air sending port 25. Clean air, whose fine powder dust has been removed by the air cleaning machine 2, is conditioned in an indoor air-conditioning unit and is sent into respective rooms. When a suction grille is constituted so that the suction grille can be removed and a hand can be inserted into the suction box to permit the maintenance of the air cleaning machine, the maintenance work thereof can be facilitated.