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    • 45. 发明专利
    • CONTROLLING SYSTEM OF AIR CONDITIONING OF SPECIAL WORKING ROOM
    • JPS613933A
    • 1986-01-09
    • JP12489784
    • 1984-06-18
    • KAJIMA CORP
    • YASUTOMI SHIGEFUMIISHIBASHI SADAOKAWASAKI KATSUMI
    • E04H5/02E04H5/06F24F7/007F24F7/06
    • PURPOSE:To prevent the deterioration of control performance by a method wherein a pressure difference between ambient pressures is compared by a door between high-pressure chamber and low-pressure chamber to control the rotating speed of an exhaust fan and the opening or closing if a damper, in the control of air conditioning of a super LSI manufacturing chamber or the like. CONSTITUTION:When a door 14 is opened, the computer 13 received the opening signal, both of clean rooms 1, 1' are handled as an integral room, the pressure difference between an indoor pressure and the ambient pressure is compared with the allowable value, and the value, and the rotating speed of an air supplying fan 7 is increased to make the pressure difference same as the allowable value in case the pressure difference is lower than the allowable value. On the other hand, when the pressure difference is within the allowable value, the follow-up property of the damper 5 for the high-pressure chamber 1 is increased while the same property of the damper 5' for the low-pressure chamber 1' is reduced by the control of the opening and closing of the dampers 5, 5'. According to this constitution, the fluctuation of chamber pressures may be restrained into minimum, restoring time may be shortened and the deterioration of control performance may be prevented evenif through pass is generated by the opening and closing of the door.
    • 46. 发明专利
    • OPERATION CONTROLLING SYSTEM OF AIR CONDITIONER SECONDARY COOLING WATER PUMP
    • JPS59225237A
    • 1984-12-18
    • JP10219483
    • 1983-06-07
    • KAJIMA CORP
    • YASUTOMI SHIGEFUMIKIMATA NOBUYUKIAKAMATSU TOSHIOHIROTAKI NOBUROUNAKAJIMA HIROSHI
    • F24F11/02F24F11/06
    • PURPOSE:To provide a substantial reduction of loss of energy at a valve and increase the efficiency of operation of a pump by a method wherein the operation of the secondary cooling water pump is controlled so as to enable the proper temperature of the third cooling water to be kept while the specified degree of opening of the valve is kept in approximately full-opened condition. CONSTITUTION:A controller 12 receives a temperature sensing signal from a temperature sensor 9 arranged in a pipe 8 for the third cooling water (c) and adjusts the degree of opening of a valve 6 in such a way as the third cooling water (c) from the heat exchanger 2 shows a proper temperature. A micro computer 15 which received the signal for showing the degree of opening of the valve 6 from the controller 12 calculates such a pressure in the pipe 10 as the valve 6 is always opened approximately to its maximum degree of opening. In the controller 13, the set value in the micro computer 15 and a measured pressure value in the actual pipe 10 received by a pressure sensor 11 are compared, and the number of rotation of the pump 7 is set in such a way as the pressure in the pipe 10 coincides with the desired value. Such a desired number of rotation is fed into the control device 14 for the number of rotation and then the device for controlling the number of rotation 14 controls the operation of the pump 7.