CN101881372A - Recovery method of tracing steam of atmospheric and vacuum distillation unit - Google Patents
Recovery method of tracing steam of atmospheric and vacuum distillation unit Download PDFInfo
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- CN101881372A CN101881372A CN201010216040.1A CN201010216040A CN101881372A CN 101881372 A CN101881372 A CN 101881372A CN 201010216040 A CN201010216040 A CN 201010216040A CN 101881372 A CN101881372 A CN 101881372A
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- steam
- tracing
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- atmospheric
- recovery method
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- 238000005292 vacuum distillation Methods 0.000 title claims abstract description 9
- 230000002209 hydrophobic effect Effects 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- 238000007599 discharging Methods 0.000 description 7
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 6
- 241000282326 Felis catus Species 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a recovery method of tracing steam of an atmospheric and vacuum distillation unit. In the recovery method, a heating furnace, an overheat steam pressure-reducing valve and an overheat steam inlet pipeline of the heating furnace are included. The technical points thereof are as follows: the overheat steam inlet pipeline of the heating furnace is bridged with a pipeline at the tail end of drainage of tracing steam of a normal pressure area so as to utilize pressure difference existing between tracing steam with the pressure of being 1.0-0.7MPa and an overheat steam system with the pressure of being 0.3MPa to carry out tail steam recovery of the tail end of the drainage. Particularly, the recovery method changes the recovery technique of condensate water and tail steam of the traced steam of the atmospheric and vacuum distillation unit, and changes the open-type tracing tail steam exhaust into close-type tracing tail steam exhaust so as to solve the problem of steam waste and heat loss.
Description
Technical field
The present invention relates to the Steam Recovery field of energy-saving technology, specifically a kind of recovery method of tracing steam of atmospheric and vacuum distillation unit.
Background technique
The equipment of petroleum chemical industry, pipeline generally adopt steam tracing to congeal measure as oil product anti-, at the end of tracing steam, a STEAM TRAP are installed generally, discharge the water of condensation that tracing steam forms because of loses heat.It is high that STEAM TRAP is opened and inspect expense every year, because the STEAM TRAP work characteristics also can be carried a certain amount of steam of draining in the process of discharging water of condensation, causes heat waste in addition.Particularly the phenomenon of vapour also appears leaking in STEAM TRAP easily, can be because of finding the untimely bigger waste that causes.
Minimizing gradually along with non-renewable resources, the coal price that the steam use takes place rises on the way, steam cost significantly improves, national sustainable development implementation particularly, society is to the energy-saving and emission-reduction pay attention to day by day, and therefore, enterprise reclaims and saves steam, remarkable in economical benefits not only, it is more remarkable to reduce discharging social benefits such as environmental protection simultaneously.
Summary of the invention
The method that the purpose of this invention is to provide a kind of atmospheric and vacuum distillation unit steam tracing tail gas recycle.Specifically atmospheric and vacuum distillation unit steam tracing condensed water and solvent recovery technology from vent gas are changed,, change closed type companion hot exhaust gas into and reclaim, to solve waste of steam, heat loss problem by the hot tail vapour discharging of open companion.
The object of the present invention is achieved like this: it includes: oven, the superheated vapor reduction valve, the superheated vapor suction line of oven, it is characterized in that: the pipeline of the hydrophobic end of cross-over connection normal pressure battery limit (BL) steam tracing on the superheated vapor suction line of oven is that the tail vapour that existing pressure difference is carried out hydrophobic end between the tracing steam of 1.0-0.7mpa and the superheated vapor system that pressure is 0.3mpa reclaims to utilize pressure.
The present invention is because the terminal STEAM TRAP of having removed tracing steam, steam tracing hydrophobic side, oven district end of line is connected to superheated vapor reduction valve rear end on the oven superheated vapor suction line of decompression, utilizes the pressure difference that exists between (pressure 0.3mpa) between tracing steam (pressure 1.0-0.7mpa) and the superheated vapor system to carry out tail vapour and reclaim.Under the situation that reaches the hot purpose of companion equally, the degradation steam and the steam condensate that reclaim pressure and temperature reducing enter the superheated vapor system, become a part of superheated vapor, be heated to 400 ℃ through oven again, after be used as atmospheric tower and stripper and annotate vapour and utilize once more, and distillate with cat head oil gas through the top of atmospheric tower jointly, through refrigerated separation, be discharged in the floor drain, be recovered in the oil-polluted water system.
Characteristics such as the present invention also has simple and reasonable, and is easy to operate, and safety is looked into and leaned on, and energy-saving effect is obvious, and application area is wide.
Description of drawings
Fig. 1 is a technological process simplified schematic diagram of the present invention;
The symbol description of accompanying drawing major component
1: the superheated vapor reduction valve; 2: atmospheric pressure kiln; 3: stripper; 4: atmospheric tower
5: floor drain; 6: the hydrophobic side end of line; 7: the superheated vapor suction line
Embodiment:
By shown in Figure 1, the present invention is an example to cancel four companions hot driving, described four companions hot driving comprises: the hydrophobic terminal discharging of the heat traced pipeline of normal pressure within battery limit high pressure gas suction line, the hydrophobic terminal discharging of the heat traced pipeline of normal pressure within battery limit high pressure gas jar, the hydrophobic terminal discharging of the heat traced pipeline of normal pressure within battery limit high pressure gas outlet line, the hydrophobic terminal discharging of the heat traced pipeline of normal pressure within battery limit low pressure gas pipeline), among the figure 2 is atmospheric pressure kiln, 1 is the superheated vapor reduction valve, it between atmospheric pressure kiln 2 and the superheated vapor reduction valve oven superheated vapor suction line 7, steam tracing hydrophobic side, oven district end of line 6 is directly connected to superheated vapor reduction valve 1 rear end on the oven superheated vapor suction line 7 of decompression after removing terminal STEAM TRAP, this superheated vapor suction line 7 is provided with regulating valve 8, utilizes the pressure difference that exists between (pressure 0.3mpa) between tracing steam (pressure 1.0-0.7mpa) and the superheated vapor system to carry out tail vapour and reclaims.Under the situation that reaches the hot purpose of companion equally, the degradation steam and the steam condensate that reclaim pressure and temperature reducing enter the superheated vapor system, become a part of superheated vapor, be heated to 400 ℃ through normal pressure oven 2, after be used as atmospheric tower 4 and stripper 3 and annotate vapour and utilize once more, and distillate with cat head oil gas through atmospheric tower 4 tops jointly, through refrigerated separation, be discharged into floor drain 5, be recovered in the oil-polluted water system.Above-mentioned four companions hot driving, 960 tons of year saving 1.0mpa steam cancelled.
Claims (2)
1. the recovery method of a tracing steam of atmospheric and vacuum distillation unit, it includes: oven, the superheated vapor reduction valve, the superheated vapor suction line of oven, it is characterized in that: the pipeline of the hydrophobic end of cross-over connection normal pressure battery limit (BL) steam tracing on the superheated vapor suction line of oven is that the tail vapour that existing pressure difference is carried out hydrophobic end between the tracing steam of 1.0-0.7mpa and the superheated vapor system that pressure is 0.3mpa reclaims to utilize pressure.
2. according to the recovery method of claims 1 described tracing steam of atmospheric and vacuum distillation unit, it is characterized in that: the pipeline of the hydrophobic end of oven district steam tracing is provided with regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010216040.1A CN101881372B (en) | 2010-07-02 | 2010-07-02 | Recovery method of tracing steam of atmospheric and vacuum distillation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010216040.1A CN101881372B (en) | 2010-07-02 | 2010-07-02 | Recovery method of tracing steam of atmospheric and vacuum distillation unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101881372A true CN101881372A (en) | 2010-11-10 |
| CN101881372B CN101881372B (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010216040.1A Active CN101881372B (en) | 2010-07-02 | 2010-07-02 | Recovery method of tracing steam of atmospheric and vacuum distillation unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN101881372B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048162A (en) * | 2013-03-14 | 2014-09-17 | 宝山钢铁股份有限公司 | Steam conveying pipeline with solar steam regenerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065718A (en) * | 1992-04-29 | 1992-10-28 | 肇东市制油厂 | Steam heat supply closed circulation equipment |
| CN1208833A (en) * | 1997-08-18 | 1999-02-24 | 邓州卷烟厂 | Method for directly feeding waste steam into boiler for reutilization |
| CN1690523A (en) * | 2004-04-22 | 2005-11-02 | 田钟荣 | Anisobaric high performance steam heat distribution system |
-
2010
- 2010-07-02 CN CN201010216040.1A patent/CN101881372B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065718A (en) * | 1992-04-29 | 1992-10-28 | 肇东市制油厂 | Steam heat supply closed circulation equipment |
| CN1208833A (en) * | 1997-08-18 | 1999-02-24 | 邓州卷烟厂 | Method for directly feeding waste steam into boiler for reutilization |
| CN1690523A (en) * | 2004-04-22 | 2005-11-02 | 田钟荣 | Anisobaric high performance steam heat distribution system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048162A (en) * | 2013-03-14 | 2014-09-17 | 宝山钢铁股份有限公司 | Steam conveying pipeline with solar steam regenerator |
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| Publication number | Publication date |
|---|---|
| CN101881372B (en) | 2013-10-23 |
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