Control system for coal gasification technical process of wet entrained flow bed

• Main Authors: WANG JIN, MEN CHANGGUI, XU HONGDONG, ZHU CHUNPENG, LUO JINCHENG, HE GENLIANG, XU HONGWEI, WEI SUNCHANG, YANG YUNLONG, LI PU, ZHENG YALAN
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2010
• Subjects: CARBURETTING AIR OR OTHER GASES; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUELS; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LUBRICANTS; METALLURGY; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICS; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; REGULATING; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention relates to a control system for the coal gasification technical process of a wet entrained flow bed. The control system comprises an oxygen/slurry ratio and feeding quantity control system, a gasification reactor temperature control system, a gasification reactor quenching chamber liquid level control system, a gasification reactor pressure control system, a mixing atomizer cooling protection system, a slag discharging control system, a water scrubber liquid level control system, a liquid level control system for an ash water treatment part, a pressure control system for the ash water treatment part and a safety protection system. The control system can carry out accurate measuring and effective control on the gasification reaction process. And the control system is also provided with the safety protection system, thus, once any one of the protected subsystems goes wrong and when the condition set by the safety protection system is fulfilled, the safety protection system is immediately started t