CN105042551A - Energy-saving emission-reducing process for atmospheric and vacuum distillation unit - Google Patents
Energy-saving emission-reducing process for atmospheric and vacuum distillation unit Download PDFInfo
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- CN105042551A CN105042551A CN201510508588.6A CN201510508588A CN105042551A CN 105042551 A CN105042551 A CN 105042551A CN 201510508588 A CN201510508588 A CN 201510508588A CN 105042551 A CN105042551 A CN 105042551A
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- energy
- atmospheric
- vacuum distillation
- distillation unit
- saving emission
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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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to an energy-saving emission-reducing process for an atmospheric and vacuum distillation unit. The key point of the process is that by virtue of the heat pump principle, a conventional process of cooling softening water by circulating water and then cooling decompression distillated oil and residual oil by softening water is changed into the energy-saving emission-reducing process, so that wasted much low-temperature heat energy is converted into universal steam power for use of oil refining equipment. According to the energy-saving emission-reducing process, the heat pump technology is flexibly utilized, so that possible problems such as gas pollution at the top of a circulating water cooling tower, continuous and discontinuous sewage disposal pollution of circulating water, heat pollution of a steam boiler, pollution caused by smoke dust as well as sulfides, nitrides, CO and CO2, waste residue pollution and the like are avoided, thereby achieving the energy-saving emission-reducing purpose.
Description
Technical field
The invention belongs to energy recovery field, be specifically related to a kind of atmospheric and vacuum distillation unit energy-saving and emission-reducing technique.
Background technology
Equipment installation fouling time in large-scale atmospheric and vacuum distillation unit in order to prevent recirculated water from directly cooling, have to be cooled by demineralized water, use factory's circulating water demineralized water again, the heat that recirculated water is taken is discharged into the atmosphere as a vapor through cooling tower, cause thermal pollution and atmosphere pollution to air, the continuous blowdown of recirculated water, interrupted blow down, also to environment, build steam boiler, also containing flue dust, SO
x, NO
x, CO
x, slag, the pollutant such as waste water.Visible, abandoning low temperature heat energy, is not only the waste to the energy, and operation operation needs " sustaining losses in business " and is also a kind of injury to environment.
Heat pump techniques is similar to Refrigeration Technique, and so far, the development of Refrigeration Technique is very ripe, and scale, temperature height, device fabrication are not problems.Although, heat pump techniques start on probation almost with Refrigeration Technique simultaneously, but the maturation of technical development, application extensive far away from Refrigeration Technique, although this technology is in family, some palace, some special enterprises (as salt manufacturing etc.) now, or the special occasions of some enterprise (as factory building, office building heating) occasionally has application, but very few from the large-scale application industrial significance.The atmospheric and vacuum distillation unit of petroleum refining industry, especially oil plant there is not yet for information about, and the heat pump applied now has a common feature: the heat energy having a narrow range of temperature, promote of small scale, lifting mostly is special, poor universality, tune Ji distributivity is poor.
Summary of the invention
For deficiency of the prior art, the invention provides a kind of atmospheric and vacuum distillation unit energy-saving and emission-reducing technique, this invented technology gears to actual circumstances, flexible utilization heat pump techniques, the heat energy that water takes away can be recycled by effective recycling atmospheric and vacuum distillation unit vacuum distillate, play the not only energy-conservation but also effect reduced discharging.
Technical scheme of the present invention is: take desalted water as cycle fluid, the heat energy carried from atmospheric and vacuum distillation unit vacuum distillate is taken out by vaporization mode from five groups of devaporizers of parallel connection, after the condition cooling of two-stage compression secondary limit and the 3rd group of compression, proceed to 1.1MPa(a) steam generator, output supplies steam outward, cycle fluid is after expenditure and pressure, enter 0.3MPa(a) exhaust steam generator, output supplies exhaust steam outward, go out the working medium of exhaust steam generator through two-stage throttling, after two-stage heat exchange cooling, return the five groups of devaporizers entering parallel connection and complete circulation, point flow container and lime set pump is furnished with at suction port of compressor end, boiler feed system is furnished with supply-water pump and degasifier, see accompanying drawing 1.
Advantage of the present invention is: this technique gears to actual circumstances, flexible utilization heat pump techniques, can be recycled the heat energy that water takes away by effective recycling atmospheric and vacuum distillation unit vacuum distillate, play the not only energy-conservation but also effect reduced discharging, this technique first Application is in large-scale atmospheric and vacuum distillation unit.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Coding in accompanying drawing represents respectively: EP01-05: evaporation group; V01-03: steam-water separator; C01-03: compressor; E01-04: heat exchanger; SV01-02: steamdrum; ER01-02: steam generator; T01: degasifier; P01-03: pump; RV01-03: choke valve; DNW: desalted water; BW: boiler feedwater; MS: middle pressure steam (main vapour, 1.1MPa); LS: low-pressure steam (exhaust steam, 0.3MPa); CW: circulatory mediator (desalted water).
Detailed description of the invention
By reference to the accompanying drawings, the specific embodiment of the present invention is:
Embodiment 1
As shown in Figure 1, the embodiment of the present invention is a set of 2,500,000 tons/year of atmospheric and vacuum distillation unit energy-saving and emission-reducing techniques, this technology utilization heat pump principle, take desalted water as cycle fluid, the heat energy carried from atmospheric and vacuum distillation unit vacuum distillate is taken out by vaporization mode from five groups of devaporizers of parallel connection, after the condition cooling of two-stage compression secondary limit and the 3rd group of compression, proceed to 1.1MPa(a) steam generator, output supplies steam outward, cycle fluid is after expenditure and pressure, enter 0.3MPa(a) exhaust steam generator, output supplies exhaust steam outward, go out the working medium of exhaust steam generator through two-stage throttling, after two-stage heat exchange cooling, return the five groups of devaporizers entering parallel connection and complete circulation, point flow container and lime set pump is furnished with at suction port of compressor end, boiler feed system is furnished with supply-water pump and degasifier.
Through calculating result be in detail: evaporimeter is from five groups of oil heat-obtaining 6565KW in parallel, in table 1.1, three compressor consumption Effective power 2268KW, pump electricity consumption 18.15KW, from saving recirculated water, demineralized water place economize on electricity 123.6KW, real power consumption 2162.55KW, export energy 9043.5KW in vapour form, the heat pumping characteristics factor of this technique is 4.182, Be very effective.
table 1.1 thermal source initial data
Claims (3)
1. an atmospheric and vacuum distillation unit energy-saving and emission-reducing technique, it is characterized in that, this technology utilization heat pump principle, take desalted water as cycle fluid, the heat energy carried from atmospheric and vacuum distillation unit vacuum distillate is taken out by vaporization mode from five groups of devaporizers of parallel connection, after the condition cooling of two-stage compression secondary limit and third level compression, proceed to 1.1MPa(a) steam generator, output supplies steam outward, cycle fluid is after expenditure and pressure, enter 0.3MPa(a) exhaust steam generator, output supplies exhaust steam outward, go out the working medium of exhaust steam generator through two-stage throttling, after two-stage heat exchange cooling, return the five groups of devaporizers entering parallel connection and complete circulation, point flow container and lime set pump is furnished with at suction port of compressor end, boiler feed system is furnished with supply-water pump and degasifier.
2. a kind of atmospheric and vacuum distillation unit energy-saving and emission-reducing technique as claimed in claim 1, is characterized in that, the compression of classification multiple-effect carried out by described compressor.
3. a kind of atmospheric and vacuum distillation unit energy-saving and emission-reducing technique as claimed in claim 1, is characterized in that, described cooler classification cools and only gets the superheat of compressor outlet medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508588.6A CN105042551B (en) | 2015-08-19 | 2015-08-19 | A kind of atmospheric and vacuum distillation unit energy-saving and emission-reducing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508588.6A CN105042551B (en) | 2015-08-19 | 2015-08-19 | A kind of atmospheric and vacuum distillation unit energy-saving and emission-reducing technique |
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| CN105042551A true CN105042551A (en) | 2015-11-11 |
| CN105042551B CN105042551B (en) | 2017-07-07 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080053127A1 (en) * | 2006-08-31 | 2008-03-06 | Yasuo Takahashi | Heat pump |
| CN201305573Y (en) * | 2008-12-11 | 2009-09-09 | 中冶焦耐工程技术有限公司 | Two-tower vacuum tar distilling plant |
| JP2011020885A (en) * | 2009-07-15 | 2011-02-03 | Air Water Inc | Method for regenerating spent carbon dioxide gas |
| CN102634363A (en) * | 2012-04-16 | 2012-08-15 | 中冶焦耐(大连)工程技术有限公司 | Three-tower type atmospheric-vacuum tar distillation process |
| CN102746883A (en) * | 2011-04-22 | 2012-10-24 | 中国石油天然气股份有限公司 | Oil atmospheric vacuum distillation technology |
| US20140124443A1 (en) * | 2012-11-07 | 2014-05-08 | Robert L. McGinnis | Systems and Methods for Integrated Heat Recovery in Thermally Separable Draw Solute Recycling in Osmotically Driven Membrane Processes |
| CN103922884A (en) * | 2014-04-23 | 2014-07-16 | 唐山宝顺化工有限公司 | Single-furnace two-tower atmospheric and vacuum combination heavy benzol finish-machining method |
| CN203866254U (en) * | 2014-03-18 | 2014-10-08 | 雷泽永 | Atmospheric and vacuum device adopting combined catalytic flue gas and oil slurry |
| CN204281685U (en) * | 2014-09-09 | 2015-04-22 | 上海博荟化工有限公司 | A kind of vacuum distillation apparatus |
-
2015
- 2015-08-19 CN CN201510508588.6A patent/CN105042551B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080053127A1 (en) * | 2006-08-31 | 2008-03-06 | Yasuo Takahashi | Heat pump |
| CN201305573Y (en) * | 2008-12-11 | 2009-09-09 | 中冶焦耐工程技术有限公司 | Two-tower vacuum tar distilling plant |
| JP2011020885A (en) * | 2009-07-15 | 2011-02-03 | Air Water Inc | Method for regenerating spent carbon dioxide gas |
| CN102746883A (en) * | 2011-04-22 | 2012-10-24 | 中国石油天然气股份有限公司 | Oil atmospheric vacuum distillation technology |
| CN102634363A (en) * | 2012-04-16 | 2012-08-15 | 中冶焦耐(大连)工程技术有限公司 | Three-tower type atmospheric-vacuum tar distillation process |
| US20140124443A1 (en) * | 2012-11-07 | 2014-05-08 | Robert L. McGinnis | Systems and Methods for Integrated Heat Recovery in Thermally Separable Draw Solute Recycling in Osmotically Driven Membrane Processes |
| CN203866254U (en) * | 2014-03-18 | 2014-10-08 | 雷泽永 | Atmospheric and vacuum device adopting combined catalytic flue gas and oil slurry |
| CN103922884A (en) * | 2014-04-23 | 2014-07-16 | 唐山宝顺化工有限公司 | Single-furnace two-tower atmospheric and vacuum combination heavy benzol finish-machining method |
| CN204281685U (en) * | 2014-09-09 | 2015-04-22 | 上海博荟化工有限公司 | A kind of vacuum distillation apparatus |
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| CN105042551B (en) | 2017-07-07 |
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