CN211705948U - Effectively reduce processing system that VOC discharged in storage tank - Google Patents
Effectively reduce processing system that VOC discharged in storage tank Download PDFInfo
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- CN211705948U CN211705948U CN202020009227.3U CN202020009227U CN211705948U CN 211705948 U CN211705948 U CN 211705948U CN 202020009227 U CN202020009227 U CN 202020009227U CN 211705948 U CN211705948 U CN 211705948U
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- methanol
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- washing tower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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Abstract
The utility model provides an effectively reduce processing system that VOC discharged in the storage tank, nitrogen seal has volatile organic compounds in the storage tank, volatile organic compounds is methyl acetate or vinyl acetate, and processing system includes the condenser that links to each other in order with the storage tank that is used for condensing volatile organic compounds, is used for washing the methanol scrubber of the volatile organic compounds of vapor phase from the condenser and is used for washing the water scrubber of coming from methanol scrubber methanol. By adopting the technical scheme, the organic waste gas treatment device has the advantages of organized emission of the exhaust gas, capability of effectively reducing the VOC emission concentration, reducing the risk of fire explosion, recycling the organic materials in the waste gas, reducing the material loss, safety, applicability and the like.
Description
Technical Field
The utility model belongs to an effectively reduce processing system that VOC discharged in the storage tank.
Background
At present, the nitrogen sealing is generally only considered for reducing the VOC emission of each storage tank system, but the VOC is not effectively subjected to standard emission treatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an effectively reduce processing system that VOC discharged in the storage tank, solve prior art methyl acetate or the vinyl acetate jar body VOC and discharge not up to standard technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an effectively reduce processing system that VOC discharged in the storage tank, nitrogen seals there is volatile organic compound in the storage tank, volatile organic compound is methyl acetate or vinyl acetate, its characterized in that: the treatment system comprises a condenser, a methanol washing tower and a water washing tower, wherein the condenser is used for condensing volatile organic compounds, the methanol washing tower is used for washing vapor-phase volatile organic compounds from the condenser, and the water washing tower is used for washing methanol from the methanol washing tower;
the storage tank is carried nitrogen gas and vapor phase volatile organic compounds to the condenser, the liquid part of vapor phase volatile organic compounds after the condensation returns to the storage tank, nitrogen gas and other vapor phase parts are carried to the methyl alcohol scrubbing tower, some volatile organic compounds are washed down by methyl alcohol in the methyl alcohol scrubbing tower, carry to low reaches apparatus for producing as the raw materials through the methyl alcohol scrubbing tower delivery pump of methyl alcohol scrubbing tower bottom, unabsorbed methyl alcohol and nitrogen gas pass through pressure and send to the water scrubbing tower, methyl alcohol is absorbed by a large amount of water in the water scrubbing tower, carry to low reaches apparatus for producing as the raw materials through the water scrubbing tower delivery pump of water scrubbing tower bottom.
Further preferably, the storage tank is also connected with a nitrogen conveying pipeline, and a self-operated regulating valve is arranged on the nitrogen conveying pipeline.
In addition, the methanol washing tower is connected with a methanol conveying pipeline.
More preferably, the nitrogen in the water washing tower is discharged to the atmosphere through a discharge pipe.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
the utility model can effectively reduce the discharge concentration of VOC and remove the peculiar smell discharged by VOC in each storage tank area; by adopting the technical scheme, the organic waste gas treatment device has the advantages that the organic waste gas treatment device can be used for organized emission of the emission gas, effectively reducing the VOC emission concentration, reducing the fire explosion risk, recovering the organic materials in the waste gas, reducing the material loss, having the characteristics of safety, applicability and the like, having good popularization and practical value, and producing good economic benefits after wide popularization and application.
Drawings
Fig. 1 is a schematic view of the structure of the system for effectively reducing the VOC emission in the storage tank.
Reference numerals: 1-a storage tank; 2-a condenser; 3-methanol wash column; 4-methanol washing tower transfer pump; 5-a water washing tower; 6-a water scrubber transfer pump; 7-nitrogen gas conveying pipeline; 8-self-operated regulating valve; 9-methanol conveying pipeline.
Detailed Description
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention will be further described below.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
A processing system for effectively reducing VOC emission in a storage tank is shown in figure 1, wherein volatile organic compounds are nitrogen-sealed in a storage tank 1, and the volatile organic compounds are methyl acetate or vinyl acetate, and the processing system comprises a condenser 2 which is sequentially connected with the storage tank 1 and is used for condensing the volatile organic compounds, a methanol washing tower 3 which is used for washing vapor-phase volatile organic compounds from the condenser 2, and a water washing tower 5 which is used for washing methanol from the methanol washing tower 3;
the storage tank 1 conveys nitrogen and vapor phase volatile organic compounds to the condenser 2, the liquid part of the vapor phase volatile organic compounds after condensation returns to the storage tank 1, the nitrogen and the rest vapor phase parts are conveyed to the methanol washing tower 3, part of the volatile organic compounds are washed by methanol in the methanol washing tower 3 and conveyed to a downstream production device as raw materials (such as a methyl acetate device) through a methanol washing tower conveying pump 4 at the bottom of the methanol washing tower 3, the methanol and the nitrogen which are not absorbed are conveyed to the water washing tower 5 through pressure, the methanol is greatly absorbed by water in the water washing tower 5 and conveyed to the downstream production device as raw materials (a methanol recovery device) through a water washing tower conveying pump 6 at the bottom of the water washing tower 5. Storage tank 1 still links to each other with nitrogen gas pipeline 7, is equipped with self-operated control valve 8 on the nitrogen gas pipeline 7, and methyl alcohol scrubbing tower 3 links to each other with methyl alcohol pipeline 9, and the atmosphere is discharged through the discharge pipe to the nitrogen gas in the water scrubber 5, and water scrubber 5 upper portion still is equipped with the industrial water pipeline of absorption usefulness.
The specific working process is as follows:
(1) nitrogen and vapor phase volatile organic compounds are conveyed to a condenser 2, a liquid part of the condensed vapor phase volatile organic compounds returns to a storage tank 1, the nitrogen and the rest vapor phase parts are conveyed to a methanol washing tower 3, part of the volatile organic compounds are washed by methanol in the methanol washing tower 3 and conveyed to a downstream production device as raw materials (such as a methyl acetate device) through a methanol washing tower conveying pump 4 at the bottom of the methanol washing tower 3, the methanol and the nitrogen which are not absorbed are conveyed to a water washing tower 5 through pressure, the methanol is greatly absorbed by water in the water washing tower 5 and conveyed to the downstream production device as the raw materials (a methanol recovery device) through a water washing tower conveying pump 6 at the bottom of the water washing tower 5.
This technique is concentrated with the VOC waste gas collection that each equipment discharged out, and carry out effectual separation according to its concrete composition, and reach the national environmental protection and organize the emission, concentrate and collect each storage tank and discharge waste gas, adopt the heat exchanger earlier, utilize the refrigerated water to cool off and reduce volatile branch to content, then adopt the methyl alcohol scrubbing tower to wash, further reduce methyl acetate, vinyl acetate's content wherein, finally adopt the scrubbing tower washing, reduce methyl alcohol content in the waste gas, finally reach environmental protection emission standard.
Especially in summer, the emission concentration around the tank farm is high, there is a risk of explosion in the presence of a fire source,
the above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (4)
1. The utility model provides an effectively reduce processing system that VOC discharged in the storage tank, nitrogen seal has volatile organic compounds in storage tank (1), volatile organic compounds is methyl acetate or vinyl acetate, its characterized in that: the treatment system comprises a condenser (2) for condensing volatile organic compounds, a methanol washing tower (3) for washing vapor-phase volatile organic compounds from the condenser (2) and a water washing tower (5) for washing methanol from the methanol washing tower (3), which are sequentially connected with a storage tank (1);
the storage tank (1) is used for conveying nitrogen and vapor-phase volatile organic compounds to the condenser (2), the liquid part of the vapor-phase volatile organic compounds after condensation returns to the storage tank (1), the nitrogen and the rest vapor-phase parts are conveyed to the methanol washing tower (3), part of the volatile organic compounds are washed down by methanol in the methanol washing tower (3), the volatile organic compounds are conveyed to a downstream production device through a methanol washing tower conveying pump (4) at the bottom of the methanol washing tower (3) to serve as raw materials, the methanol and the nitrogen which are not absorbed are conveyed to the water washing tower (5) through pressure, the methanol is greatly absorbed by water in the water washing tower (5), and the volatile organic compounds are conveyed to the downstream production device through a water washing tower conveying pump (6) at the bottom of the water washing tower (5) to serve as raw.
2. The treatment system for effectively reducing VOC emissions from a storage tank of claim 1, wherein: the storage tank (1) is also connected with a nitrogen conveying pipeline (7), and a self-force adjusting valve (8) is arranged on the nitrogen conveying pipeline (7).
3. The treatment system for effectively reducing VOC emissions from a storage tank of claim 1, wherein: the methanol washing tower (3) is connected with a methanol conveying pipeline (9).
4. A treatment system for effectively reducing VOC emissions from a storage tank as claimed in any one of claims 1 to 3, wherein: and the nitrogen in the water washing tower (5) is discharged into the atmosphere through a discharge pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020009227.3U CN211705948U (en) | 2020-01-03 | 2020-01-03 | Effectively reduce processing system that VOC discharged in storage tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020009227.3U CN211705948U (en) | 2020-01-03 | 2020-01-03 | Effectively reduce processing system that VOC discharged in storage tank |
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| CN211705948U true CN211705948U (en) | 2020-10-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691513A (en) * | 2020-12-03 | 2021-04-23 | 湖北三宁化工股份有限公司 | VOC waste gas pretreatment system and technology |
| CN114396505A (en) * | 2021-12-28 | 2022-04-26 | 重庆川维石化工程有限责任公司 | Volatile organic gas emission device integrating nitrogen supplement and gas phase pressure balance functions |
-
2020
- 2020-01-03 CN CN202020009227.3U patent/CN211705948U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691513A (en) * | 2020-12-03 | 2021-04-23 | 湖北三宁化工股份有限公司 | VOC waste gas pretreatment system and technology |
| CN114396505A (en) * | 2021-12-28 | 2022-04-26 | 重庆川维石化工程有限责任公司 | Volatile organic gas emission device integrating nitrogen supplement and gas phase pressure balance functions |
| CN114396505B (en) * | 2021-12-28 | 2024-05-07 | 重庆川维石化工程有限责任公司 | Volatile organic gas discharge device with nitrogen supplementing and gas phase pressure balancing functions |
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