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A water seal system and method for recovery of flare gas

A technology of flare gas and water recovery, applied in the direction of combustion method, pipeline system, gas/liquid distribution and storage, etc., can solve the problems of high construction cost, large amount of sealing water, and slow speed of eliminating water seal, so as to save investment and eliminate Safe discharge and easy maintenance

Active Publication Date: 2016-01-13
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used water seal valve group has complex structure, large volume, and large amount of sealing water.
It makes equipment maintenance more difficult, construction cost is high, and at the same time, it is slow to eliminate water seal when there is an accident, which is not conducive to the discharge of emergency accidents

Method used

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  • A water seal system and method for recovery of flare gas

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Embodiment

[0051] Such as figure 1 As shown, a flare gas recovery water seal system includes a U-shaped water seal pipe 2 and a water seal tank 3,

[0052] A U-shaped water-sealed pipe 2 is arranged between the torch gas inlet and the water-sealed tank 3, and a pipeline b is drawn from the pipeline a between the torch gas inlet and the U-shaped water-sealed pipe 2, and a control valve A5 is arranged on it to communicate with the torch gas In the recovery unit, the low point of the U-shaped water seal pipe 2 is 300mm higher than the liquid level in the water seal tank 3;

[0053] The pipeline between the ports of the U-shaped water-sealed pipe 2 is provided with a bursting disc 1; the vertical pipe of the U-shaped water-sealed pipe 2 close to the water-sealed pipe is provided with a water-sealed overflow pipeline 10, and the water-sealed overflow pipeline 10 is connected to The torch gas inlet pipeline of the water-sealed tank 3; the bottom pipeline of the U-shaped water-sealed pipe 2 is...

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Abstract

The invention discloses a flare gas recovering water sealing system and method. The system comprises a U-shaped water sealing pipe and a water-sealed tank, the U-shaped water sealing pipe is arranged between a flare gas inlet and the water-sealed tank, one end of the U-shaped water sealing pipe is connected with the water-sealed tank, a pipeline b is led out from a pipeline a between the flare gas inlet and the U-shaped water sealing pipe, a control valve A is arranged on the pipeline a, and the pipeline a is communicated with a flare gas recovering unit. A pipeline between end openings of the U-shaped water sealing pipe is provided with a rupture disk. A bottom pipeline of the U-shaped water sealing pipe is provided with a control valve B and a control valve C which are in parallel connection, and the other end of the control valve B and the other end of the control valve C are connected to a gas distributor arranged on the inner bottom of the water-sealed tank. A water inlet pipeline is divided into a pipeline c and a pipeline d, the pipeline c is provided with a control valve D, and the pipeline c is connected with the bottom pipeline of the U-shaped water sealing pipe. The pipeline d is provided with a control valve E and is connected with the bottom of the water-sealed tank. The flare gas recovering water sealing system and method can achieve the purposes of being efficient in using, not occupying space, reducing piping, lowering investment, and being capable of stably and continuously operating in long time in the full factory.

Description

technical field [0001] The invention relates to the field of petrochemical torch gas treatment, and furthermore, relates to a water sealing system and method for recovering torch gas. Background technique [0002] Flare is a special combustion facility used to deal with the combustible gas emitted by petrochemical plants, refineries and other factories or devices during accidents and normal production. It is an important measure to ensure the safe production of the whole plant and reduce environmental pollution. The treatment method is to try to convert flammable and combustible toxic gases into non-flammable inert gases, and convert harmful, odorous and toxic substances into harmless, odorless and non-toxic substances and then empty them. [0003] Flare gas emissions from petrochemical plants, refineries, and other plants or devices are divided into emergency emissions and normal production emissions. Emergency emissions are characterized by randomness and large and unstabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/08F23G7/06
Inventor 赵广明
Owner CHINA PETROCHEMICAL CORP
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