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Heat exchanger cleaning of a joint unit of PetroChina Petrochemical Company

Release time：2017-05-27Author：Click：3171

　　1、Cleaning range

	Process number	Device name	Model	Cleaning target	Parra Stern
Ex heat exchanger	E-1001	A regular heat exchanger for crude oil	BES800-4.0-160-6/25-4I	Heavy oil, iron sulfide	D740 742
	E-1003	An ordinary three - line (three) heat exchanger for crude oil	BES1000-4.0-265-6/25-4Ib	Heavy oil, iron sulfide	D740 742
	E-1004/1、2	Crude oil one in one heat exchanger	BES1100-2.5-335-6.0/25-2I	Heavy oil, iron sulfide	D740 742
	E-1005/1、2	Crude oil one line heat exchanger	BES900-4.0-215-6/25-2Ib	Heavy oil, iron sulfide	D740 742
	E-1201/1-4	Crude oil reduction and reduction cycle heat exchanger	BES1200-4.0-400-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1202	Crude oil is reduced by two (3) heat exchanger	BES1200-1.8/2.2-400-6.0/25-2Ib	Heavy oil, iron sulfide	D740 742
	E-1203/1、2	Crude oil reduced slag (four) heat exchanger	BES1200-2.5-400-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1203/3	Crude oil reduced slag (four) heat exchanger	BES1200-2.5-505-6.0/19-2 Ib	Heavy oil, iron sulfide	D740 742
Off heat exchanger	E-1006/1、2	After removal of crude oil, a constant weight (two) heat exchanger	BES1200-2.5-400-6.0/25-2Ib	Heavy oil, iron sulfide	D740 742
	E-1007	An ordinary three - line (two) heat exchanger for crude oil	BES800-2.5-160-6.0/25-4I	Heavy oil, iron sulfide	D740 742
	E-1008/1、2	Crude oil heat exchanger	BES1100-2.5-335-6.0/25-2Ib	Heavy oil, iron sulfide	D740 742
	E-1009	After removal of crude oil, an ordinary three wire (a) heat exchanger	BES800-4.0-165-6/25-2Ib	重油、硫化亞鐵	D740 742
	E-1010/1、2	After removal of crude oil, a constant weight (1) heat exchanger	BES1200-4.0-400-6.0/25-2Ib	Heavy oil, iron sulfide	D740 742
	E-1204/1、2	The crude oil is reduced by three (three) heat exchanger	BES1100-2.5-325-6/2-2I	Heavy oil, iron sulfide	D740 742
	E-1218/1、2	Crude oil heat exchanger	BES1200-2.5-505-6/19-2I	Heavy oil, iron sulfide	D740 742
	E-1205/1、2	After removing crude oil, a slag reduction (3) heat exchanger is used	BES1100-2.5-325-6/25-4I	Heavy oil, iron sulfide	D740 742
	E-1206/1、2	The crude oil is reduced by two (two) heat exchanger	BES1100-4.0-335-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1208/1、2	The crude oil is reduced by three (two) heat exchanger	BES1100-4.0-335-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1219/3、4	After removal, crude oil is reduced by 1 (1) heat exchanger	BES1100-4.0-335-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1219/1	After removal, crude oil is reduced by 1 (1) heat exchanger	LBQ1200-2.5-LT2	Heavy oil, iron sulfide	D740 742
Flash heat exchanger	E-1209/1、2	One off two and one medium heat exchanger	BES1100-4.0-325-6/25-4I	Heavy oil, iron sulfide	D740 742
	E-1210/1-4	Flash bottom slag reduction (I) heat exchanger	BES1200-2.08-400-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1210/5	Flash bottom slag reduction (I) heat exchanger	BES1200-4.0-400-6.0/25-2 Ib	Heavy oil, iron sulfide	D740 742
	E-1211/1-4	Flash bottom slag reduction (two) heat exchanger	BES1100-4.0-335-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1212/1-4	Flash bottom minus three (a) heat exchanger	BES1100-4.0-335-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1213/1-4	Flash bottom minus 2 (two) heat exchanger	BES1100-4.0-335-6/25-2I	Heavy oil, iron sulfide	D740 742
	E-1214/1、2	Flash bottom minus 2 (1) heat exchanger	BES1200-4.0-500-6/19-2I	Heavy oil, iron sulfide	D740 742
	E-1214/3一5	Flash bottom minus 2 (1) heat exchanger	BES1200-4.0-500-6/19-2Ib	Heavy oil, iron sulfide	D740 742
Constant weight	E-1023/1、2	Often restart the shutdown cooler	BES1200-4.0-400-6.0/25-2Ib	Heavy oil, iron sulfide	D740 742
Vacuum residue	E-1217/1-3	Slag less water cooler	BES1200-2.5-400-6/25-2I	Heavy oil, iron sulfide	D740 742

　　2、time node:

　　3、Cleaning effect

　　1) The gas phase cleaning of parattah en atmospheric column, vacuum tower, distillation tower of hydrogen sulfide (H2S), iron sulfide (FeS), light oil cleaning, after cleaning device inside the hydrogen sulfide and other toxic gases content is 0, visual observation device internal clean and can see no light oil residue device for inner wall of metal color.

　　2)The end of the cleaning device opens the manhole, the operator carries the instrument to detect, and the hydrogen sulfide alarm does not alarm.

　　3) After opening the manhole, after six hours of ventilation, the maintenance personnel can enter the equipment and start the operation directly.

　　After testing, the PetroChina Dagang Petrochemical Company shutdown maintenance device, by Parra Stern (Paratene) after gas phase cleaning to achieve the desired objectives, improve production efficiency and get the recognition and affirmation of the manufacturers.

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