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Domestic application of centrifugal compressor of chlorine

Clog pipes, valves, especially the acid sludge attached to the impeller and the diffuser surface of the flow lane, reduce the flow area,[link widoczny dla zalogowanych], the transmission capacity of chlorine compressor will gradually decrease. Baling Petrochemical Company's diaphragm caustic soda, chlorine gas drying device and the blister packed tower used tower series combination of processes, taking into mist control, in addition to control acid mist filter elements have adopted the United States Yu Shan (Monsanto) produced highly efficient, low- defogging of glass fiber tube pressure drop, larger than 3m on the droplet size can be 100% removed, the following particle size 3m separation efficiency of 99.3%, and reduced resistance to 1.5kPa. Therefore, the chlorine treated water content of 0.005%, and the mist entrainment is minimal. Shut down for maintenance in 2005 during the press was the disintegration of the chlorine, it was discovered chlorine compressor impeller, and the associated access i: 1 channels are bright as new, no corrosion. 6.2 The quality seal gas compressor seal and control the form of chlorine used inflatable labyrinth-type pumping. Under normal circumstances, sealed gas mixture back into the air and gas pressure control between 5 ~ 10kPa, sealed the intake air pressure slightly higher than the mixed gas pressure in the discharge pipe, it can effectively prevent the chlorine gas leakage. In the meantime, seal gas unit on the quality requirements are high, the general requirements in seal gas water content less than 0.003%,[link widoczny dla zalogowanych], and not oil, dust and other impurities. During operation, the gas must also be sealed to ensure stable supply, if there is seal gas pressure drops or interrupted, immediately start to find reasons or alternate air source, otherwise it will leak or chlorine into the tank. Chlorine gas into the oil system, oil pollution, thus affecting the normal operation of chlorine compressor. Baling Petrochemical Company of chlorine gas compressor seal gas system configuration of the 3 methods were treated instrument air, nitrogen from the outer tube and bottles to nitrogen, the quality and pressure of the gases have reached the technological requirements to ensure the normal operation of the chlorine compressor 6.3 chlorine drying temperature and pressure control in the 0-100oC chlorine corrosion of the steel temperature not exceeding 100oC}, its corrosion rate slightly faster; temperature exceeds 144 ��, it is easy reaction of chlorine with the metal fire. Therefore, the operation within the exhaust temperature at 120oC is appropriate, after compression of chlorine excess heat generated by the chlorine cooler promptly removed. Chlorine compressor intake, exhaust pressure should be strictly controlled in the design range, otherwise easily lead to the unit operation pressure ratio is too large. Lead to surge to damage the host. 7 Problems and recommendations (1) PLC and touch screen operation with digital input, as 640mmx480mm display smaller, enter the number manually adjust the OP PIC value of a 4520 error-prone. Proposed to add a control panel digital display screen to replace the terminal's digital input, for regulating the control of a 4520's opening PIE to avoid misuse. (2) recommended the adoption of PROFIBUSDP communication terminal i: 1 DCS system to achieve communication with the PLC display, easy to electrolysis,[link widoczny dla zalogowanych], chlorine drying jobs were able to monitor the operational status of press. (3) use, export of steel liner chlorine press a short section of PTFE expansion cracks easily, needs to be improved and perfected. (4) chlorine pesticides exported to compressor pressure relief valve for on-site tower manual control, when the sharp rise in outlet pressure unit, the operator can be rushed to the scene open the pressure relief valve, so that in case of delay in trouble made processing time. Tower to the pesticides proposed to add a station D50 pipeline control valve, the relief operation in the control panel or adjust the control of DCS. 8 Conclusion proven,[link widoczny dla zalogowanych], LYJ a 2200/0.42 centrifugal compressor in Baling Petrochemical Company chlorine caustic soda plant membrane transport of chlorine is successful. Since the device has been put into use, transportation efficiency of chlorine in the current density 1.67kA / m under the conditions of operation, and compared to the original Nessler pumps, production of caustic soda 1t electric power saving of about 30kW �� h; chlorine Press No consumption of sulfuric acid, chlorine acid consumption decreased by approximately 15kg / (t �� chlorine).
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