CN201182912Y - Vacuum machine group of improved oil refining pressure reducing device - Google Patents
Vacuum machine group of improved oil refining pressure reducing device Download PDFInfo
- Publication number
- CN201182912Y CN201182912Y CNU2008200166401U CN200820016640U CN201182912Y CN 201182912 Y CN201182912 Y CN 201182912Y CN U2008200166401 U CNU2008200166401 U CN U2008200166401U CN 200820016640 U CN200820016640 U CN 200820016640U CN 201182912 Y CN201182912 Y CN 201182912Y
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- pump
- water
- condenser
- oil refining
- vacuum unit
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Abstract
The utility model relates to a vacuum unit for a modified oil refining and distilling device. The vacuum unit is composed of at least two-stage roots pump and a water ring pump or a reciprocating vacuum pump. A condenser and a liquid recycling device are additionally arranged between the air outlet of the upper stage roots pump and the air inlet of the lower stage roots pump; the gas phase inlet of the condenser is connected with the air outlet of the upper stage roots pump, and the gas phase outlet of the condenser is connected with the air inlet of the lower stage roots pump. The liquid phase outlet of the condenser is connected with the liquid recycling device. The vacuum unit for the modified oil refining and distilling device has the advantages that when the vacuum unit is used on the oil refining and distilling device with 80*10 <4>/per year, a large part of condensed oil can be recycled, the recycled amount of the condensed oil can reach 400,000 tons to 500,000 tons/ per year, the total yield of the oil product is enhanced by 5 percent, and not only the economic benefit is enhanced, but also the environmental contamination is reduced. The water saving effect is obvious, the vacuum unit is used on the oil refining and distilling device with 80*10 <4>/ per year, the water saving amount is 36,000 tons per year, the two-stage pressure difference of the system is enhanced, thus to ensure that the power of the water ring pump is saved by 50 percent, and the running cost is reduced.
Description
Technical field
The utility model belongs to separation field, is specifically related to a kind of improved oil refining distilling apparatus vacuum unit.
Background technology
The factory of petrochemical refining of prior art be with crude oil through normal pressure, decompression distillation, be separated into the different cuts of various boiling points such as gasoline, kerosene, diesel oil, heavy diesel fuel and lightweight, middle matter and heavy grease successively.Traditional vacuum tower vacuum means is changed to steam jet pump, exist whole device comprehensive energy consumption height, capacity usage ratio vacuum low, that can reach low, need special problems such as steam source.
The Chinese patent of applicant's last application (day for announcing is on September 28th, 2005, and publication number is CN 2728588Y) provides a kind of decompressor vacuum unit, and the vacuum unit is Roots-liquid-ring type vacuum unit or Roots-reciprocating type vacuum unit.Its advantage is that take up room little, working stability, energy consumption is low.But also exist condensed oil to reclaim not exclusively, loss of coercibility composition and problem of environment pollution caused in the emptying tail gas.The applicant is on the basis of above-mentioned granted patent, further improves.
The utility model content
Goal of the invention of the present utility model provides a kind of equipment improvement project, overcomes condensed oil and reclaims not exclusively, loss of coercibility composition and problem of environment pollution caused in the emptying tail gas.
Improvement technical scheme of the present utility model is:
A kind of improved oil refining decompressor vacuum unit is provided, and its vacuum unit is made of two-stage lobe pump and water ring pump or reciprocating vacuum pump at least, it is characterized in that:
Between the air entry of the exhaust outlet of upper level Roots vaccum pump and next stage Roots vaccum pump, set up condenser and liquid withdrawal system;
The gas phase import of described condenser is connected with the exhaust outlet of upper level Roots vaccum pump, and the gaseous phase outlet of condenser is connected with the air entry of next stage Roots vaccum pump.
The liquid phase outlet of described condenser is connected with liquid withdrawal system.
Above-mentioned improved oil refining decompressor vacuum unit is characterized in that described water-ring vacuum pump sets up closed circuit water circle device.
Above-mentioned improved oil refining decompressor vacuum unit is characterized in that the closed circuit water circle device of described water-ring vacuum pump is made of separator and heat exchanger; The import of separator is connected with the leakage fluid dram of water-ring vacuum pump, and the separator outlet is connected with the heat exchanger shell pass import; The heat exchanger shell pass outlet is connected with the circulating water intake of water-ring vacuum pump.
Described retracting device is set to gas---liquid separate and/or oil---water separation device.
The utility model has the advantages that:
1. improved oil refining distilling apparatus vacuum unit, having kept publication number is whole advantages of CN 2728588Y Chinese patent, and starting is fast, and adaptability is strong, has shortened the driving time of decompression distillation system, and is stable; The required total driving power of vacuum unit is little, and power consumption only is 1/3rd of an original steam jet pump, reduces the comprehensive energy consumption of decompression distillation system, reduces operating cost; Compact conformation, floor space is little, and the during-operation service expense is low.
2. improved oil refining distilling apparatus vacuum unit obtains reclaiming through most of condensed oil on probation, 80 * 10
4On/year oil refining the distilling apparatus, ten thousand tons/year of condensed oil yield 40-50, raising oil product total yield about 5% is not only increased economic efficiency, and has reduced the pollution to environment.
3. improved oil refining distilling apparatus vacuum unit, water-saving result is obvious, through trying out 80 * 10
4On/year oil refining the distilling apparatus, 36000 tons of annual water-saving amounts.
4. improved the secondary pressure reduction of system, make water ring pump power save 50%, reduced operating cost.
Description of drawings
Fig. 1 is that a kind of Roots of the utility model-water-ring vacuum pump group connects the form schematic diagram;
Fig. 2 is that another Roots of the utility model-water-ring vacuum pump group connects the form schematic diagram;
Fig. 3 is that a kind of Roots of the utility model-reciprocating vacuum pump group connects the form schematic diagram;
Fig. 4 is that the another kind of Roots of the utility model-water-ring vacuum pump group connects the form schematic diagram;
Fig. 5 is that the another kind of Roots of the utility model-reciprocating vacuum pump group connects the form schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further elaborated.
Among Fig. 1, adopt the vacuum extractor of Roots-liquid-ring type vacuum unit as vacuum distillation tower, this example comprises that two Roots vaccum pump groups, 4, two Roots vaccum pumps of 1,2 and water-ring vacuum pump groups and a water-ring vacuum pump are connected in series successively, constitutes Roots-Roots-water-ring vacuum pump unit.
Roots vaccum pump-Roots vaccum pump-with the gas circuit of water-ring vacuum pump in the middle of, set up condenser and liquid withdrawal system.
Wherein, 1-1,1-2 Roots vaccum pump, 1-4 water-ring vacuum pump; 2-1,2-2 condenser; 3-1,3-2, liquid withdrawal system.
Among Fig. 2, comprise that two Roots vaccum pump groups, 4, two Roots vaccum pumps of 1,2 and water-ring vacuum pump groups and a water-ring vacuum pump are connected in series successively, constitute Roots-Roots-water-ring vacuum pump unit; But the water-ring vacuum pump group is set up closed circuit water circle device; Wherein, 2-4 heat exchanger; The 3-4 separator; All the other labels are with aforementioned.
Among Fig. 3, comprise that two Roots vaccum pump groups 1,2 and 5, two Roots vaccum pumps of a reciprocating vavuum pump group and a reciprocating vavuum pump are connected in series successively, constitute Roots-Roots-reciprocating vacuum pump unit; Wherein, 1-5 reciprocating vacuum pump; All the other labels are with aforementioned.
Among Fig. 4, comprise that three Roots vaccum pump groups, 4, three Roots vaccum pumps of 1,2,3 and water-ring vacuum pump groups and a water-ring vacuum pump are connected in series successively, constitute Roots-Roots-water-ring vacuum pump unit.Wherein, 1-3 Roots vaccum pump, 2-3 condenser; The 3-3 liquid withdrawal system; All the other labels are with aforementioned.
Among Fig. 5, comprise that three Roots vaccum pump groups 1,2,3 and 5, two Roots vaccum pumps of a reciprocating vavuum pump group and a reciprocating vavuum pump are connected in series successively, constitute Roots-Roots-reciprocating vacuum pump unit; Wherein, label is with aforementioned.
Its condenser is set to shell and tube or coiled.Its retracting device is set to gas---liquid separate and/or oil---water separation device.Because the utility model adopts the vacuum unit to provide negative pressure source for decompressor, has speed of exhaust height, the device starting is fast, adaptive capacity is strong, help shortening the driving time of whole decompression distillation system, stablize the advantages such as operating condition of vacuum distillation tower, its compact conformation, floor space is little, the during-operation service expense is low, and the required total driving power of whole unit is little, can reduce the comprehensive energy consumption of whole decompression distillation system effectively, reduce its production run expense, help the economical operation of whole decompressor and the technological transformation of existing apparatus.The utility model can be widely used in the atmospheric and vacuum distillation unit field of petrochemical industry.
Claims (3)
1. improved oil refining decompressor vacuum unit, its vacuum unit are made of two-stage lobe pump and water ring pump or reciprocating vacuum pump at least, it is characterized in that:
Between the air entry of the exhaust outlet of upper level Roots vaccum pump and next stage Roots vaccum pump, set up condenser and liquid withdrawal system;
The gas phase import of described condenser is connected with the exhaust outlet of upper level Roots vaccum pump, and the gaseous phase outlet of condenser is connected with the air entry of next stage Roots vaccum pump.
The liquid phase outlet of described condenser is connected with liquid withdrawal system.
2. according to the described improved oil refining decompressor vacuum unit of claim 1, it is characterized in that described water-ring vacuum pump sets up closed circuit water circle device.
3. according to the described improved oil refining decompressor vacuum unit of claim 2, it is characterized in that the closed circuit water circle device of described water-ring vacuum pump is made of separator and heat exchanger; The import of separator is connected with the leakage fluid dram of water-ring vacuum pump, and the separator outlet is connected with the heat exchanger shell pass import; The heat exchanger shell pass outlet is connected with the circulating water intake of water-ring vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200166401U CN201182912Y (en) | 2008-01-16 | 2008-01-16 | Vacuum machine group of improved oil refining pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200166401U CN201182912Y (en) | 2008-01-16 | 2008-01-16 | Vacuum machine group of improved oil refining pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201182912Y true CN201182912Y (en) | 2009-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200166401U Expired - Fee Related CN201182912Y (en) | 2008-01-16 | 2008-01-16 | Vacuum machine group of improved oil refining pressure reducing device |
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| CN (1) | CN201182912Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776013A (en) * | 2015-03-06 | 2015-07-15 | 合肥富通机电自动化有限公司 | Vacuum unit for thermal power plant |
| CN105018680A (en) * | 2015-01-12 | 2015-11-04 | 张宝夫 | RH refining device |
| CN105238436A (en) * | 2015-08-25 | 2016-01-13 | 海南汉地阳光石油化工有限公司 | Decompression vacuum extraction system, decompression system, and method for extracting agricultural lubricating oil |
| CN105861032A (en) * | 2012-04-25 | 2016-08-17 | 福克鲁姆环境解决方案公司 | Processing unit and method for separating hydrocarbons from feedstock material |
| CN110394017A (en) * | 2019-07-19 | 2019-11-01 | 江门谦信化工发展有限公司 | A kind of vacuum system produced applied to acrylic acid and esters of acrylic acid |
-
2008
- 2008-01-16 CN CNU2008200166401U patent/CN201182912Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105861032A (en) * | 2012-04-25 | 2016-08-17 | 福克鲁姆环境解决方案公司 | Processing unit and method for separating hydrocarbons from feedstock material |
| CN105861032B (en) * | 2012-04-25 | 2018-03-23 | 福克鲁姆能源公司 | For the processing unit (plant) and method for separating hydrocarbon with raw material |
| CN105018680A (en) * | 2015-01-12 | 2015-11-04 | 张宝夫 | RH refining device |
| CN105018680B (en) * | 2015-01-12 | 2017-04-12 | 张宝夫 | RH refining device |
| CN104776013A (en) * | 2015-03-06 | 2015-07-15 | 合肥富通机电自动化有限公司 | Vacuum unit for thermal power plant |
| CN105238436A (en) * | 2015-08-25 | 2016-01-13 | 海南汉地阳光石油化工有限公司 | Decompression vacuum extraction system, decompression system, and method for extracting agricultural lubricating oil |
| CN110394017A (en) * | 2019-07-19 | 2019-11-01 | 江门谦信化工发展有限公司 | A kind of vacuum system produced applied to acrylic acid and esters of acrylic acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20170116 |