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GT Mark IV Application of computer control system functions


. Waste heat boiler to replace the temporary control of the servo amplifier functions, so that the commissioning of the boiler control system servo amplifier military's bad parts replaced without affecting the debugging process, the problem is resolved. Second, principles and program implementation servo zoom control in the waste heat boiler. For the three impulse control boiler feed Yu management process shown in Figure 1. The principle block diagram shown in Figure 2, circle 2 dashed box in the appropriate card for the MK Ⅳ cases, the details shown in Figure 4, the miasma is to the amount of waste heat boiler feed water control system, for example three-impulse affectionate boiler feed mine a three-Ge process impulse control How do we use the principle Lei Jieshao Mark Ⅳ lotus collection computer system date. 47 July 1993 three-ring 2Mark Ⅳ】 application in the amount of water control eight and ten principles is a typical block diagram of Feedforward and cascade consisting of multiple sets GC: (Figure in the DB for the dead zone, the value is ±-conditioning systems, system is to adjust the parameters of water flow,[link widoczny dla zalogowanych], steam 0.15VDC.GM.: 0 ~ 10VDC.C, C:. 0 ~ flow feedforward signal, drum level to be adjusted parameters, the calling 10VDC). Relay R. . R are not driven, the valve Ding maintaining the output section and steam flow signal output at the same time into additional original opening. Instruments used by the output of the adder after the appropriate operation,[link widoczny dla zalogowanych], and compared with the water flow calculation. After comparing the regulation of expression,[link widoczny dla zalogowanych], Vice regulator signal sent to GC, it simulates the output signal into MK1V the input / output card (AIO>, while regulating Min actuator position feedback signal GM. But also to the analog input / output Card (AIO) in. With this card, and then into the MK Ⅳ of the \GM. signals the size of the assessment calculations. the calculated results for the logic signals. In (c) communication is carried on z / 3 vote, when a processor fails logo, the other two still intact microprocessor control unit run, when the two emblem processor fails, the unit stops. control software is to use pseudo-(Pseudo) summer total number of relay shown in Figure 3. When the position feedback signal GM. more than vice ring modulator output signal GC: Time ,[link widoczny dla zalogowanych], the output logic signal to the relay R. driven, so that the valve off when the position feedback signal small} GM. less than the vice ring modulator output signal GC: When the computer output logic signal to the relay R: drive. to The Open the valve. When GM. approximately equal to 48 Figure 3 (R) (s) \(GCz + DB) - real-time variable dot 1678 (LoW), 167A (RAISE) - logical variable dots, GE Mark Ⅳ computer system in London, according to storage area with three. According to the variable mixture of London (MDATA0hhh),[link widoczny dla zalogowanych], logical variables (LDATAlhhh), integer data III, running assessment variables (IDATA. 2hhh). Development when we have to find the right point of the standby unit number, to prevent damage to the contents of the original store to find spare <AIO) interface and (RM) relay jurisdiction the port address, can not address the original program unit Mark Ⅳ coincide Mark Ⅳ computer control damage . Figure 4 specifies the wiring in the Mark Ⅳ electric pump theory and the work of vine water management. Principle wiring diagram 4 laps after our repeated testing on the unit. Starting times. Stop testing and evaluation of long running question, Mark Ⅳ replace the function of the servo amplifier system is more satisfactory results in the waste heat boiler operation. Mark Ⅳ computer control system has played a huge role. It also replaced three of the servo control loop amplification system. Involved in the heat load control, the main steam temperature control, waste heat boiler feed water three impulse control, running well. It should be noted that: in the control system tuning, and put into operation, Mark Ⅳ control system and waste heat boiler to tie up and adjust the regulator to closely monitor changes in the amount to be adjusted to prevent excessive overshoot, residual error is too large, resulting in system instability. Resulting in failure. In addition, the adjustment frequency should not be too large, otherwise easily damage the relay. (Continued from page 53) VI Summary Rongji set of operating condition and subsequent off-line vibration monitoring of the power spectrum of vibration signal analysis are an important basis for the analysis of abnormal vibration. The state of its operation with the unit, other site conditions combined, comprehensive analysis, can improve the accuracy of diagnosis. Thank Luoyang Petrochemical Engineering Corporation and other comrades Ni Huaiheng equipment and off-line analysis of the measurement work. 9
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the heat exchanger within a condensing boiler to be economic to manufacture, and for the appliance to be manageable at installation, the smallest practical size for its output is preferred. This has produced heat exchangers with very high combustion side resistance and so the use of a combustion fan to move the products through narrow passageways has been adopted. This also has had the benefit of providing the energy for the flue system as the expelled combustion gases are usually below 100°C (212°F) and no longer have much natural buoyancy.

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