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    • 135. 发明专利
    • METHOD AND DEVICE FOR DETECTING LEAKAGE OF SAFETY VALVE
    • JPS59228142A
    • 1984-12-21
    • JP10446083
    • 1983-06-10
    • NISSHIN KOGYO KK
    • HAYASHI HIDETOSHI
    • G01M3/04G01M3/06G01M3/08
    • PURPOSE:To prevent corrosion of the main body of a safety valve, by detecting the operation of the safety valve as bubbles in an oil tank for a gas purger, and preventing the intrusion of water into the outlet side of the safety valve from a discharge pipe by a blind packing. CONSTITUTION:A safety valve 1 is connected to a refrigerating pressure container, a heat exchanger, and the like in a refrigerant device through an inlet valve 2 of the safety valve. A discharge pipe 3 is connected to the outlet side of the safety valve 1 and guides and discharges the refrigerant gas, which is blown out when the safety valve 1 is actuated, to the outside of a room, a ship, or the like. A blind packing 5 is provided between a pair of flanges 4 and 4, which are provided at the intermediate part of the discharge pipe 3. The packing is broken by a pressure of 4.8-5.0kg/cm . One end of a pipe 12 is connected to a refrigerant inlet and air discharge port 10 of a gas purger 8 through a stop valve 11. The other end thereof is opened in the oil in a gas purger oil tank 9. The refrigerant gas, which is discharged as bubbles in the gas purger oil tank 9 is exhausted through an exhausting pipe 13.
    • 140. 发明专利
    • Method and device for controlling temperature in refrigerating chamber
    • 用于控制制冷室温度的方法和装置
    • JPS5977524A
    • 1984-05-04
    • JP18877082
    • 1982-10-26
    • Nisshin Kogyo Kk
    • MUNEZANE KAZUHIKO
    • F25D11/00F25B5/02G05D23/00G05D23/19
    • G05D23/1934
    • PURPOSE:To execute the control with high accuracy by fetching the optimum control value as an operating signal by a regulator having a deviation value calculated by a computer controller and having a PI or PID operation, and operating each valve by this signal. CONSTITUTION:When a program is stored in a computer controller 14 by a kind, quantity, etc. of goods contained in advance in a refrigerating chamber, the controller 14 inputs a deviation value calculated by calculating in a complicated high level each value of TA, TB and TS converted to an electric signal by an R/L converter 15, to temperature controllers 16-18, deviation between a set value of each controller 16-18 and this deviation value is controlled by a PI or PID operation, an output of each controller 16-18, being an optimum control value is inputted as an operating signal of electronic temperature expansion valves 5, 6 and an electronic evaporation pressure adjusting valve 7, each valve 5-7 is operated, and a blow-out temperature of air cooling chambers 1, 2 is controlled with high accuracy in accordance with a program prescribed in advance.
    • 目的:通过由具有由计算机控制器计算并具有PI或PID运算的偏差值的调节器获取作为操作信号的最佳控制值,并通过该信号操作每个阀,来高精度地执行控制。 规定:当通过预先在冷藏室中预先存储的货物的种类,数量等将程序存储在计算机控制器14中时,控制器14输入通过以复杂的高级计算的每个值TA计算出的偏差值, TB和TS通过R / L转换器15转换为电信号到温度控制器16-18,每个控制器16-18的设定值与该偏差值之间的偏差由PI或PID操作控制,输出 输入作为最佳控制值的控制器16-18作为电子温度膨胀阀5,6的运行信号和电子蒸发压力调节阀7,每个阀5-7被操作,空气的吹出温度 根据预先规定的程序,冷却室1,2以高精度被控制。