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A heavy oil storage tank vocs safe recovery system and recovery process

A recovery system and heavy oil technology, applied in separation methods, transportation and packaging, packaging, etc., can solve the problems of large nitrogen consumption, storage tanks beyond the pressure range, and pressure sensor dependence, etc., to achieve excellent treatment effects and save nitrogen The effect of consumption and investment increase

Active Publication Date: 2021-10-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned prior art consumes a lot of nitrogen and relies heavily on the pressure sensor. Once the pressure sensor fails, it may cause the operation of the storage tank beyond the pressure range

Method used

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  • A heavy oil storage tank vocs safe recovery system and recovery process

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Embodiment Construction

[0030] The present invention proposes a heavy oil storage tank VOCs safe recovery system and recovery process. In order to make the advantages and technical solutions of the present invention clearer and clearer, the present invention will be described in detail below in conjunction with specific examples.

[0031] Such as figure 1 As shown, a heavy oil storage tank VOCs safe recovery system of the present invention includes a heavy oil storage tank one 1, a heavy oil storage tank two 2, a suction cooling liquid window one 9, a suction cooling liquid window two 10, Suction blower 14, process pipeline and pipe fittings, process pipeline includes first pipeline, second pipeline, third pipeline and fourth pipeline, wherein, the exhaust port of heavy oil storage tank-1 is connected to suction through the first pipeline. Air fan, the other end of the suction fan is connected to the burner of the heating furnace, the heavy oil volatile gas extracted by the suction fan is passed into...

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Abstract

The invention discloses a heavy oil storage tank VOCs safe recovery system and recovery process, belonging to the field of petrochemical environmental protection technology. It includes heavy oil storage tank 1, heavy oil storage tank 2, suction coolant window 1, suction coolant window 2 and suction fan, and the exhaust port of heavy oil storage tank 1 is connected through the first pipeline The suction fan is connected with a second pipeline in the middle of the first pipeline, and the second pipeline is used to send the cooled heavy oil to the underground oil tank; the suction fan is also connected with a heating furnace burner. The volatile gas of heavy oil extracted by the suction fan is passed into the burner of the heating furnace for incineration, and a breathing valve and a muffler at the suction port are respectively arranged on the first pipeline and the third pipeline. The invention can prevent the environment pollution caused by the volatilization of oil and gas, and ensure the safety and reliability of the recovery process, and hardly consume nitrogen during normal operation, and will not cause noise pollution.

Description

technical field [0001] The invention relates to the field of petrochemical environmental protection technology, in particular to a VOCs safe recovery system and recovery process for heavy oil storage tanks. Background technique [0002] "Code for Design of Vertical Cylindrical Steel Welded Oil Tanks" (GB50341-2014) stipulates that the operating pressure range of fixed roof oil tanks is -0.295~18KPa. The breathing valve on the top of the conventional heavy oil storage tank directly discharges to the air. When the pressure of the storage tank is higher than 18KPa, the breathing valve opens and the gas containing styrene and other organic substances in the gas phase space of the storage tank is discharged into the air, causing environmental pollution. When the pressure of the storage tank is lower than -0.295KPa, the breathing valve is opened to inhale air; in order to ensure that the air does not enter the storage tank, forming a negative pressure state and generating explosiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D90/32B65D90/30B01D53/00
CPCB01D53/002B01D2257/708B65D90/30B65D90/32
Inventor 陈文武屈定荣邱志刚冯煜刘曦泽叶成龙
Owner CHINA PETROLEUM & CHEM CORP
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