CN-117839323-B - Multi-phase dangerous chemical leakage recovery system and recovery method

CN117839323BCN 117839323 BCN117839323 BCN 117839323BCN-117839323-B

Abstract

The invention discloses a multi-phase dangerous chemical leakage recovery system which comprises a gas-liquid separation module, a gas absorption module and a gas adsorption module which are sequentially communicated, wherein the gas-liquid separation module comprises a gravity separator and a solid-liquid collection box, the gas-liquid separation module comprises a gas-liquid separator and a liquid collection reaction box, the gas absorption module comprises a Venturi scrubber and a closed gas-liquid reaction box, the gas adsorption module comprises an adsorption cavity, the gas phase separated from a gas phase outlet of the gravity separator and the liquid phase of the solid-liquid collection box are conveyed to the gas-liquid separation module, liquid phase and partial gas phase absorption is realized in the gas-liquid separation module, the gas-liquid separator is sequentially connected to the gas absorption module and the gas absorption module, and gas phase absorption is realized in the gas absorption module and the gas absorption module. The invention can simultaneously and respectively recover and efficiently treat the hazardous chemical substances leaking liquid, solid and gas.

Inventors

ZHENG YI
ZHAO XIANGDI
JIANG CHUNYU
CHEN SONG
ZHANG RIPENG
WANG ZHENG
ZHANG GUANGWEN

Assignees

中国石油化工股份有限公司
中石化安全工程研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20220930

Claims (12)

1. The multi-phase dangerous chemical leakage recovery system is characterized by comprising a gas-liquid-solid separation module, a gas-liquid separation module and a gas absorption module which are sequentially communicated; The gas-liquid-solid separation module comprises a gravity separator and a solid-liquid collection box, wherein the gravity separator is provided with a gas-liquid-solid mixture inlet, a gas phase outlet and a solid-liquid outlet, a first liquid phase outlet is arranged at the middle upper part of the solid-liquid collection box, a first solid phase outlet is arranged at the bottom of the solid-liquid collection box, the gas-liquid-solid mixture inlet of the gravity separator is used for sucking leaked dangerous chemicals through a suction pump, the solid-liquid outlet of the gravity separator is connected into the solid-liquid collection box, a liquid phase layer positioned at the upper layer and a solid phase layer positioned at the lower layer are formed in the solid-liquid collection box, and the gas phase separated by the gas phase outlet of the gravity separator and the liquid phase of the solid-liquid collection box are conveyed to the gas-liquid separation module; The gas-liquid separation module comprises a gas-liquid separator and a liquid collecting reaction box, a gas-liquid inlet of the gas-liquid separator receives a gas phase separated by a gas phase outlet of the gravity separator and a liquid phase of a solid-liquid collecting box, a liquid phase outlet of the gas-liquid separator is connected to the liquid collecting reaction box, the gas phase outlet of the gas-liquid separator is connected to the gas absorbing module, a first decontaminating agent atomizing and spraying device is arranged above the liquid collecting reaction box, and a second liquid phase outlet is arranged at the bottom of the liquid collecting reaction box; The gas absorption module comprises a Venturi scrubber and a closed gas-liquid reaction box, the Venturi scrubber is arranged in the closed gas-liquid reaction box, a gas phase inlet of the Venturi scrubber is connected with a gas phase outlet of the gas-liquid separator through a pipeline, a second decontaminating agent is contained in the closed gas-liquid reaction box, the second decontaminating agent enters the Venturi scrubber through a liquid phase inlet of the Venturi scrubber, a first gas phase outlet is arranged at the top of the closed gas-liquid reaction box, and a third liquid phase outlet is arranged at the bottom of the closed gas-liquid reaction box.
2. The multi-phase hazardous chemical substance leakage recovery system according to claim 1, further comprising a gas adsorption module, wherein the gas adsorption module comprises an adsorption chamber, an adsorbent is arranged in the adsorption chamber, the adsorption chamber is connected with a first gas phase outlet at the top of the closed gas-liquid reaction box through a pipeline, and a second gas phase outlet is arranged at the top of the adsorption chamber.
3. The multi-phase hazardous chemical leakage recovery system according to claim 2, wherein 2 first gas phase outlets are provided, and the valves are respectively provided for the 2 first gas phase outlets, wherein one first gas phase outlet is connected with the adsorption chamber.
4. The multi-phase dangerous chemical leakage recovery system according to claim 1, wherein a venturi tube is arranged between the gas-liquid-solid separation module and the gas-liquid separation module, a gas phase inlet of the venturi tube is connected with a gas phase outlet of the gravity separator through a pipeline, a liquid phase inlet of the venturi tube is connected with the solid-liquid collection box through a suction hose, a floating ball is arranged at the end part of the suction hose, and the floating ball floats on a liquid phase layer of the solid-liquid collection box.
5. The multi-phase hazardous chemical substance leakage recovery system according to claim 1, wherein 2 second liquid phase outlets are arranged at the bottom of the liquid collecting reaction tank, one of the second liquid phase outlets is connected with a circulating pump, and the other end of the circulating pump is connected to the first decontamination agent atomization spraying device.
6. The multiphase hazardous chemical leakage recovery system according to claim 1, wherein a packing is arranged at the bottom of the liquid collection reaction tank, and the packing is 304 stainless steel or corrosion resistant plastic.
7. The multi-phase hazardous chemical leakage recovery system according to claim 2, wherein the adsorbent is activated carbon particles, activated carbon fibers or modified activated carbon.
8. The multiphase hazard recovery system of claim 1, wherein one side of the gravity separator is provided with static elimination means.
9. The multiphase hazardous chemical substance leakage recovery system according to claim 4, wherein the inner wall and the outer wall of the venturi tube, the venturi scrubber and the gas-liquid separator are provided with a PFA hydrophobic coating.
10. A multi-phase hazardous chemical leakage recovery method, using a multi-phase hazardous chemical leakage recovery system according to any one of claims 1 to 9, comprising the steps of: (1) The leakage dangerous chemicals are sucked into a gravity separator through a suction pump, the gas dangerous chemicals are separated from the solid dangerous chemicals and the liquid dangerous chemicals, the solid dangerous chemicals and the liquid dangerous chemicals flow into a solid-liquid collecting box from a solid-liquid outlet of the gravity separator, are layered in the solid-liquid collecting box to form a liquid phase layer positioned at an upper layer and a solid phase layer positioned at a lower layer, and then the gas dangerous chemicals separated from a gas phase outlet of the gravity separator and the liquid dangerous chemicals in the solid-liquid collecting box are conveyed to a gas-liquid separator in a gas-liquid separation module; (2) The gas-liquid separator separates the gas dangerous chemicals from the liquid dangerous chemicals, the liquid dangerous chemicals and part of the gas dangerous chemicals enter the liquid collecting reaction tank, and the first decontaminating agent atomizing and spraying device sprays the first decontaminating agent to remove the liquid dangerous chemicals and part of the gas dangerous chemicals; (3) And removing the gas hazardous chemicals separated from the gas separator through the gas absorption module or the gas absorption module and the gas absorption module to obtain clean gas and discharging the clean gas.
11. The method for recycling leakage of hazardous chemical substances in multiple phases according to claim 10, wherein the step of removing the hazardous chemical substances separated from the gas separator by the gas absorption module in the step (3) comprises the steps of: The gas dangerous chemical separated from the gas separator enters a gas phase inlet of a venturi scrubber in the gas absorption module through a pipeline, a liquid phase inlet of the venturi scrubber sucks a second decontaminating agent, the gas dangerous chemical reacts with the second decontaminating agent in a contact way, the gas dangerous chemical is removed, and the reacted clean gas is discharged from a first gas phase outlet.
12. The method for recycling leakage of hazardous chemical substances in multiple phases according to claim 10, wherein the step of removing the hazardous chemical substances separated from the gas separator by the gas absorption module and the gas adsorption module in the step (3) comprises the steps of: Firstly, a valve of a first gas phase outlet connected with an adsorption chamber is opened, a valve of the other first gas phase outlet is closed, gas dangerous chemicals separated from a gas separator enter a gas phase inlet of a venturi scrubber in a gas absorption module through a pipeline, a liquid phase inlet of the venturi scrubber sucks a second decontaminating agent, the gas dangerous chemicals react with the second decontaminating agent in a contact mode to remove the gas dangerous chemicals, then the reacted gas enters the adsorption chamber through the pipeline from the first gas phase outlet connected with the adsorption chamber, the adsorbent in the adsorption chamber adsorbs the gas dangerous chemicals, and clean gas obtained after adsorption is discharged from the second gas phase outlet of the adsorption chamber.

Description

Multi-phase dangerous chemical leakage recovery system and recovery method Technical Field The invention relates to the technical field of dangerous goods leakage recovery, in particular to a multi-phase dangerous chemical leakage recovery system and a recovery method. Background In the production, storage, transportation and transportation processes of dangerous chemicals, if management and protection are improper, dangerous chemicals can leak, if a leakage point occurs in a complex environment such as a tunnel, a city pipe network, a drainage ditch, a building and the like with poor ventilation, dangerous chemicals can be accumulated, secondary disasters such as poisoning, fire disaster, explosion and the like are extremely easy to cause, and therefore, great potential safety hazards exist for dangerous chemicals to leak. In recent years, leakage accidents of dangerous chemicals at home and abroad frequently occur, and the leakage accidents are in an ascending trend year by year, so that serious property loss and casualties of the country are caused, and great threat is caused to social development and public safety. In addition, in a common dangerous chemical leakage accident, leakage liquid, solid and volatile gas exist simultaneously and are mutually influenced, and a single liquid leakage, solid leakage and volatile gas leakage emergency treatment method is not applicable, so the invention provides a multi-phase dangerous chemical leakage recovery system and a recovery method, which can simultaneously recover and efficiently treat dangerous chemical leakage liquid, solid and gas respectively. Disclosure of Invention The multi-phase dangerous chemical leakage recovery system and the recovery method can be used for recovering and efficiently disposing dangerous chemical leakage liquid, solid and gas at the same time, and are sufficient in recovery treatment, and the recovery efficiency of dangerous chemicals reaches more than 90% and the disposal efficiency reaches more than 70%. In order to achieve the above purpose, the technical solution adopted by the invention is as follows: A multi-phase dangerous chemical leakage recovery system comprises a gas-liquid-solid separation module, a gas-liquid separation module and a gas absorption module which are sequentially communicated; The gas-liquid-solid separation module comprises a gravity separator and a solid-liquid collection box, wherein the gravity separator is provided with a gas-liquid-solid mixture inlet, a gas phase outlet and a solid-liquid outlet, a first liquid phase outlet is arranged at the middle upper part of the solid-liquid collection box, a first solid phase outlet is arranged at the bottom of the solid-liquid collection box, the gas-liquid-solid mixture inlet of the gravity separator is used for sucking leaked dangerous chemicals through a suction pump, the solid-liquid outlet of the gravity separator is connected into the solid-liquid collection box, a liquid phase layer positioned at the upper layer and a solid phase layer positioned at the lower layer are formed in the solid-liquid collection box, and the gas phase separated by the gas phase outlet of the gravity separator and the liquid phase of the solid-liquid collection box are conveyed to the gas-liquid separation module; The gas-liquid separation module comprises a gas-liquid separator and a liquid collecting reaction box, a gas-liquid inlet of the gas-liquid separator receives a gas phase separated by a gas phase outlet of the gravity separator and a liquid phase of a solid-liquid collecting box, a liquid phase outlet of the gas-liquid separator is connected to the liquid collecting reaction box, the gas phase outlet of the gas-liquid separator is connected to the gas adsorption module, a first decontaminating agent atomizing spray device is arranged above the liquid collecting box, and a second liquid phase outlet is arranged at the bottom of the liquid collecting reaction box; The gas absorption module comprises a Venturi scrubber and a closed gas-liquid reaction box, the Venturi scrubber is arranged in the closed gas-liquid reaction box, a gas phase inlet of the Venturi scrubber is connected with a gas phase outlet of the gas-liquid separator through a pipeline, a second decontaminating agent is contained in the closed gas-liquid reaction box, the second decontaminating agent enters the Venturi scrubber through a liquid phase inlet of the Venturi scrubber, a first gas phase outlet is arranged at the top of the closed gas-liquid reaction box, and a third liquid phase outlet is arranged at the bottom of the closed gas-liquid reaction box. Further, the gas adsorption module comprises an adsorption cavity, an adsorbent is arranged in the adsorption cavity, the adsorption cavity is connected with a first gas phase outlet at the top of the closed gas-liquid reaction box through a pipeline, and a second gas phase outlet is arranged at the top of the adsorption cavity. Further, 2 fir