Internal thermal coupling air separation tower online observer based on concentration curve characteristic

• Main Authors: LIU XINGGAO, WANG ZHIYU
• Format: Patent
• Language: Chinese; English
• Published: 17.04.2018
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TARIFF METERING APPARATUS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING

The invention discloses an internal thermal coupling air separation tower online observer based on concentration curve characteristics; the online observer comprises an intelligent meter and a DCS system directly connected with the internal thermal coupling air separation tower; the DCS system comprises a host observer, a control station, a storage device, a field bus, and a data interface; the storage device, the control station and the host observer are connected with the data interface through the field bus; the intelligent meter measures related parameters through a temperature detection element, a pressure detection element, and a flow rate detection element, and is connected with the data interface. The host observer can realize the online observation function, can predict the stateof the internal thermal coupling air separation tower at a future moment, and comprises a concentration curve static state description module, a concentration curve dynamic description module, and a future moment internal the