CN205528614U - Improve diesel oil vacuum dehydration system of diesel oil water content - Google Patents
Improve diesel oil vacuum dehydration system of diesel oil water content Download PDFInfo
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- CN205528614U CN205528614U CN201620147817.6U CN201620147817U CN205528614U CN 205528614 U CN205528614 U CN 205528614U CN 201620147817 U CN201620147817 U CN 201620147817U CN 205528614 U CN205528614 U CN 205528614U
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- diesel oil
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to an improve diesel oil vacuum dehydration system of diesel oil water content. Mainly solved and taken the moisture high problem of product diesel oil at the bottom of the single tower strip tower of current adoption out. Its characterized in that: pipeline connection to diesel oil dehydration column (2) upper portion at the bottom of strip tower (1) tower, diesel oil dehydration column (2) top of the tower pipeline connection condensers (4) are at the bottom of diesel oil dehydration column (2) tower pipeline connection diesel pump (6), the pipeline connection diesel oil that flows automatically bottom condenser (4) divides water pitcher (3), condenser (4) lower part pipeline connection water ring vacuum pump (5), water ring vacuum pump (5) outlet line atmospheric dilution. This improve diesel oil vacuum dehydration system of diesel oil water content, the diesel oil after utilizing diesel oil vacuum dehydration system to the strip carries out vacuum dehydration, and the diesel oil after the dehydration can satisfy the moisture requirement of product, direct meet the State standards.
Description
Technical field
This utility model relates to a kind of vacuum dewatering system, a kind of diesel oil vacuum dewatering system improving diesel oil water content in technical field of petrochemical industry.
Background technology
Diesel product unit in diesel hydrotreating unit, existing apparatus typically uses Single-tower stripping, owing to the product diesel oil of extraction at the bottom of tower after stripping inevitably containing saturation water, and cause the aqueous problem of product diesel oil, and this aqueous diesel product needs to be reduced to the content of water in the range of related specifications requires when dispatching from the factory, product accident problem the most easily occurs, and determine due to the mode of its production marketing in finished diesel fuel realm of sale, can make the water contained in diesel oil occur in the oil tank of the units such as gas station bottom accumulation problems, it is more prone to the product accident causing product water content to exceed standard.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the aqueous high problem of product diesel oil of extracting out at the bottom of existing employing Single-tower stripping tower present in background technology, and a kind of diesel oil vacuum dewatering system improving diesel oil water content is provided, the diesel oil vacuum dewatering system of this improvement diesel oil water content, utilize diesel oil vacuum dewatering system that the diesel oil after stripping is carried out vacuum dehydration, diesel oil after dehydration disclosure satisfy that the aqueous requirement of product, directly reaches national standard.
The invention for solving the technical problem can reach by following technical solution: the diesel oil vacuum dewatering system of this improvement diesel oil water content, including stripper, pipeline at the bottom of described stripper tower is connected to diesel oil dewatering tower top, described diesel oil dewatering column overhead pipeline connects condenser, and pipeline at the bottom of diesel oil dewatering tower tower connects diesel pump；The pipeline that flows automatically bottom described condenser connects diesel oil water distributing can, and condenser pipeline connects water ring vacuum pump, and described water ring vacuum pump outlet line enters air.
This utility model can have the advantages that compared with above-mentioned background technology the diesel oil vacuum dewatering system of this improvement diesel oil water content is owing to using said system, utilize diesel oil vacuum dewatering system that the diesel oil after stripping is carried out vacuum dehydration, diesel oil after dehydration directly reaches national standard, settle again cut water without delivering to tank field, just can directly take out, also reduce storage cost simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is system flow chart of the present utility model.
In figure: 1-stripper, 2-diesel oil dewatering tower, 3-diesel oil water distributing can, 4-condenser, 5-water ring vacuum pump, 6-diesel pump, 7-condensate pump, 8-coalescer.
Detailed description of the invention:
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, the diesel oil vacuum dewatering system of this improvement diesel oil water content, including stripper 1, pipeline at the bottom of described stripper 1 tower is connected to diesel oil dewatering tower 2 top, described diesel oil dewatering tower 2 overhead line connects condenser 4, and pipeline at the bottom of diesel oil dewatering tower 2 tower connects diesel pump 6；The pipeline that flows automatically bottom described condenser 4 connects diesel oil water distributing can 3, and condenser 4 lower pipelines connects water ring vacuum pump 5, and described water ring vacuum pump 5 outlet line enters air；The described tank bottoms pipeline of diesel oil water distributing can 3 accesses bottom coalescer 8 after connecting condensate pump 7, and coalescer 8 top connects product and flows out pipeline.
When the diesel oil vacuum dewatering system of this improvement diesel oil water content runs, diesel oil dewatering tower top is sent in hydrogenated diesel oil refined diesel oil gravity flow after stripping, diesel oil vacuum dehydration pressure tower maintains pressure to be-30 ~-60kPa by vacuum pump, owing to pressure reduces, water in the aqueous refined diesel oil flowed into by stripper vaporizes, vaporization water entrance vacuum pump with a small amount of diesel oil is evacuated to diesel oil dewatering overhead condenser, and condensed fluid gravity flow is sent into gun barrel and carried out oil-water separation by profit density contrast.Wherein oil-polluted water relies on height of liquid level automatically to enter oil-polluted water floor drain.Flash distillation diesel oil in gun barrel is by pumping out, and flash distillation diesel oil is dehydrated through profit coalescer again.Diesel oil dewatering tower bottom dehydration diesel oil is sent carrying device (flash distillation diesel oil is incorporated to the refined diesel oil after cooling after coalescer) after air cooling and cooler cool down by diesel pump.
In grand celebration, blue stone company limited implements the present invention to diesel hydrotreating unit, and application effect is the best, meets the aqueous requirement of product, has reached invention effect.
Claims (2)
1. the diesel oil vacuum dewatering system improving diesel oil water content, including stripper (1), it is characterized in that: pipeline at the bottom of described stripper (1) tower is connected to diesel oil dewatering tower (2) top, described diesel oil dewatering tower (2) overhead line connects condenser (4), and pipeline at the bottom of diesel oil dewatering tower (2) tower connects diesel pump (6)；Gravity flow pipeline in described condenser (4) bottom connects diesel oil water distributing can (3), and condenser (4) lower pipelines connects water ring vacuum pump (5), and described water ring vacuum pump (5) outlet line enters air.
The diesel oil vacuum dewatering system improving diesel oil water content the most according to claim 1, it is characterized in that: the tank bottoms pipeline of described diesel oil water distributing can (3) connects condensate pump (7) and accesses coalescer (8) bottom afterwards, and coalescer (8) top connects product and flows out pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147817.6U CN205528614U (en) | 2016-02-29 | 2016-02-29 | Improve diesel oil vacuum dehydration system of diesel oil water content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147817.6U CN205528614U (en) | 2016-02-29 | 2016-02-29 | Improve diesel oil vacuum dehydration system of diesel oil water content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205528614U true CN205528614U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620147817.6U Expired - Fee Related CN205528614U (en) | 2016-02-29 | 2016-02-29 | Improve diesel oil vacuum dehydration system of diesel oil water content |
Country Status (1)
| Country | Link |
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| CN (1) | CN205528614U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267202A (en) * | 2017-07-20 | 2017-10-20 | 武汉轻工大学 | A kind of hydrogenated diesel oil refinery gas stripping fractionation and negative pressure desorption method and its device |
| CN112076493A (en) * | 2020-09-10 | 2020-12-15 | 大庆中蓝石化有限公司 | Waste heat recycling system of diesel hydrogenation device |
| CN113999698A (en) * | 2020-07-27 | 2022-02-01 | 中国石油化工股份有限公司 | Diesel oil dehydration device, stripping system and diesel oil dehydration method |
-
2016
- 2016-02-29 CN CN201620147817.6U patent/CN205528614U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267202A (en) * | 2017-07-20 | 2017-10-20 | 武汉轻工大学 | A kind of hydrogenated diesel oil refinery gas stripping fractionation and negative pressure desorption method and its device |
| CN107267202B (en) * | 2017-07-20 | 2023-04-25 | 武汉轻工大学 | Method and device for stripping fractionation and negative pressure desorption of hydrogenated diesel refinery gas |
| CN113999698A (en) * | 2020-07-27 | 2022-02-01 | 中国石油化工股份有限公司 | Diesel oil dehydration device, stripping system and diesel oil dehydration method |
| CN112076493A (en) * | 2020-09-10 | 2020-12-15 | 大庆中蓝石化有限公司 | Waste heat recycling system of diesel hydrogenation device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |