An Intelligent Control Method of Compressor System Based on Expert System
A compressor system and expert system technology, applied in pump control, mechanical equipment, machine/engine, etc., can solve problems such as failure to maintain normal production, device system pressure drop, and complex logic
Active Publication Date: 2019-12-13
BEIJING CENTURY ROBUST TECH
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Problems solved by technology
[0004] The "split range plus automatic selection" control scheme has complex logic and cannot fully realize automatic control. When the pressure of the hydrogen pipeline network system is lower than the set value, the compressor automatically controls the hydrogen in the device system to return the amount to supplement the new hydrogen compressor. Inlet pressure, in this state, the device system pressure drops rapidly, unable to maintain normal production
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Embodiment Construction
[0032] Aiming at the method proposed by the present invention, it will be described below in conjunction with an example.
[0033] The structure of the new hydrogen compressor intelligent control system is as follows: figure 1 Shown:
[0034] High score tank pressure PIC3, PIC3A, PIC3B are three different controllers based on the same measurement point.
[0035] Both the pressure of the new hydrogen separation tank PIC1 and the pressure of the high separation tank PIC3A are controlled by a single loop, and when the pressure of the new hydrogen tank A and the high separation tank C is extremely high, they can be quickly and safely emptied.
[0036] High fraction tank pressure PIC3 uses a single loop controller to adjust the two-return and two-valve PV3 to achieve the purpose of adjusting the high-fraction tank C pressure PIC3 by adjusting the secondary return volume of the new hydrogen compressor;
[0037] Real-time adjustment of the set value of the pressure PIC2 of the firs...
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The invention discloses a compressor system intelligent control method based on an expert system. The compressor system intelligent control method is characterized in that compressor outlet pressure is adjusted by simulating the operation of an operator according to the operation features and existing problems of a compressor system and the expert knowledge and experience of on-site technicians and operators; the set value of primary-outlet liquid separation tank pressure PIC2 is adjusted through the expert system in real time so as to synchronously adjust a primary return valve PV2 and a secondary return valve PV3; Compared with existing traditional 'split ranging plus automatic selection', the make-up hydrogen compressor system intelligent control method has the advantages that the method has certain intelligent performance and self-adaptation performance; the secondary return valve and the primary return valve are synchronously adjusted by simulating on-site operators according to the high-range tank pressure change, the pressure of the high-range tank C and compressor outlet pressure PI can be fast stabilized, and the primary compression ratio and secondary compression ratio can satisfy process requirements.
Description
technical field [0001] The invention relates to an intelligent control method for a new hydrogen compressor system of a hydrogenation device, belonging to the technical field of process automation control. Background technique [0002] The new hydrogen compressor is a very important dynamic equipment in the hydrogenation unit, usually using two or three stages of compression. The new hydrogen increases the pressure through the new hydrogen compressor, and then mixes with the circulating hydrogen and enters the reaction system for reaction, so as to supplement the hydrogen consumption of the reaction system and stabilize the pressure of the system. There are many factors affecting the new hydrogen pressure in the device, and the fluctuation of the pressure will affect the smooth operation of the device. Therefore, the control of the outlet pressure of the new hydrogen compressor is very important. [0003] Traditional pressure control usually adopts the "split range plus au...
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IPC IPC(8): F04B49/06F04B49/08F04B49/22
CPCF04B49/065F04B49/08F04B49/22
Inventor 李全善王文新石建峰
Owner BEIJING CENTURY ROBUST TECH