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Airtight feeding and discharging device for volatile media and use method thereof

A technology of feeding and discharging materials and media, which is applied in the direction of liquid flow control devices, distribution devices, special distribution devices, etc., can solve problems of economy and reliability, cannot adapt to environmental protection requirements, and unstable use effects, etc., to achieve Remarkable environmental protection effect, sensitive opening and contraction, and the effect of reducing the emission of medium steam

Active Publication Date: 2016-05-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adsorption method, membrane separation and other methods have poor stability in long-term use, and need regular maintenance and replacement, otherwise the use effect is unstable
[0005] The above-mentioned method has problems in inventions such as economy and reliability, and it is difficult to avoid the discharge of toxic and harmful volatile substances into the environment, which cannot meet the current increasing environmental protection requirements

Method used

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  • Airtight feeding and discharging device for volatile media and use method thereof
  • Airtight feeding and discharging device for volatile media and use method thereof
  • Airtight feeding and discharging device for volatile media and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A hexane liquid storage device composed of a liquid tank V1 (hexane storage tank), an air bag tank V2, a nitrogen tank V3, a vacuum tank V4, a vacuum pump P2, a delivery pump P1 and a control pipeline.

[0054] The liquid tank V1 is a horizontal elliptical head, the inner diameter of the equipment is 1800mm, the length of the cylinder is 4200mm, and the total volume is 12M 3 ;The air bag tank V2 is a horizontal elliptical head, the inner diameter of the equipment is 1800mm, the length of the cylinder is 4200mm, and the total volume is 12M 3 , with a built-in soft airbag, the size of the airbag is 1600mm in inner diameter, 3800mm in cylinder length, and the contraction interface is 200mm.

[0055] Nitrogen tank V3 and vacuum tank V4 are both vertical oval head storage tanks with a volume of 2M 3 . The vacuum pump P2 is a rotary vane vacuum pump with a pumping capacity of 15L / min, and the transfer pump P1 is a centrifugal chemical process pump with a flow rate of 12.5...

Embodiment 2

[0073] A toluene liquid storage device composed of a liquid tank V1 (toluene storage tank), an airbag tank V2, a nitrogen tank V3, a vacuum tank V4, a vacuum pump, a delivery pump and a control pipeline.

[0074] Toluene liquid tank V1 is a horizontal elliptical head, the inner diameter of the equipment is 1800mm, the length of the cylinder is 4200mm, and the total volume is 12M 3 ;The air bag tank V2 is a horizontal elliptical head, the inner diameter of the equipment is 1800mm, the length of the cylinder is 4200mm, and the total volume is 12M 3 , built-in customized soft airbag (airbag size is 1600mm inner diameter, cylinder length 3800mm, contraction interface is 200mm.

[0075] Nitrogen tank V3 and vacuum tank V4 are both vertical oval head storage tanks with a volume of 2.0M 3 . The vacuum pump P1 is a rotary vane vacuum pump with a pumping capacity of 15L / min, and the delivery pump P2 is a centrifugal chemical process pump with a flow rate of 12.5M 3 / hr, head is 40...

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PUM

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Abstract

The invention provides an airtight feeding and discharging device for volatile media and a use method thereof. The device comprises a liquid storage tank, an air bag tank, a nitrogen tank, a vacuum pump, a liquid conveying pump, a control valve and a connection pipeline. Through cooperation of the respiration function of the air bag tank and gas-phase space variation during feeding and discharging of the liquid storage tank, gas emission during feeding and discharging of a combustible liquid and poisonous and harmful liquid storage tank can be reduced and finally eliminated. The airtight feeding and discharging device for volatile media is suitable for production of polyolefin catalysts, zero emission of harmful and combustible media is achieved during storage and conveying of media such as hexane, toluene and titanium tetrachloride, and the device is easy to operate and operates stably.

Description

technical field [0001] The invention relates to a material feeding and discharging device for volatile medium in petrochemical production, which is especially suitable for the sealed feeding and discharging process of toxic and flammable media in the production of polyolefin catalysts and the like. Background technique [0002] In chemical production, especially in the production process of polyolefin catalysts, it is necessary to use a certain amount of recycled intermediate raw materials such as hexane, toluene, titanium tetrachloride, etc. These raw materials are flammable, explosive or toxic and harmful media. Since hexane and toluene are volatile liquids, titanium tetrachloride can absorb water in the atmosphere and decompose to form acid mist when it is vented in a small amount of steam, thus causing air pollution; therefore, the above materials are recycled in the production of polyolefin catalysts. The washing filtrate and other materials are recovered, and the hexan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B67D99/00
Inventor 张建新孙汝柳李庆过良王婧柴璐璐
Owner CHINA PETROLEUM & CHEM CORP
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