CN103845914B - Arrangement method of double reboilers as well as double-reboiler equipment - Google Patents
Arrangement method of double reboilers as well as double-reboiler equipment Download PDFInfo
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- CN103845914B CN103845914B CN201310475147.1A CN201310475147A CN103845914B CN 103845914 B CN103845914 B CN 103845914B CN 201310475147 A CN201310475147 A CN 201310475147A CN 103845914 B CN103845914 B CN 103845914B
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- reboilers
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Abstract
The invention relates to an arrangement method of double reboilers as well as double-reboiler equipment. The arrangement method of the double reboilers is that the two reboilers are arranged vertically; the bottom of the reboiler positioned below is provided with a tower bottom liquid phase inlet connected with a tower bottom liquid phase outlet pipeline, and the top of the reboiler is provided with two outlets connected with two bottom inlets of the reboiler positioned above; the top of the reboiler positioned above is provided with a gas phase outlet, and a gas phase passes through the outlet, and finally enters a tower body; pipe passes of the two reboilers are provided with mutual individual outlets and inlets. After the arrangement scheme provided by the invention is adopted for the double reboilers, not only is the requirement for 'being short and straight as much as possible' for pipelines by the technical design met, but also the stress requirement for the pipelines by the pipeline design is met, and the safe, stable and long-cycle running of the double reboilers and the pipelines thereof is ensured; meanwhile, the design number of pipes, pipe fittings and supports is reduced; the occupied area of the equipment is reduced; the construction cost is reduced; meanwhile, the running cost of the equipment is also reduced so as to create great profit for enterprises.
Description
Technical field
The present invention relates to crude oil manufacture field, particularly relate to the layout of refinery device " two reboiler ".
Background technology
Reboiler is a kind of equipment being used for improving liquid-phase vaporization rate at the bottom of tower common in petrochemical plant.Along with the requirement of petrochemical equipment to energy resource consumption is more and more higher, when apparatus design, more and more start to adopt " two reboiler " pattern.When device goes into operation, use wherein, using steam medium as thermal source, liquid phase at the bottom of tower is heated; During normal operating, use other one, using the process fluid medium in device as thermal source, liquid phase at the bottom of tower is heated, does not re-use steam, to reach the object that economize energy consumes.At present, the design of the routine of this pattern is that two reboilers are arranged in tower both sides respectively, is arranged in the both sides of distance tower 4m respectively, with reference to figure 1 for certain company 1,400,000 tons/year of continuous reformer deheptanizer C402, deheptanizer reboiler E402A/B.
When adopting this Design Mode, consider from the angle of technological design, require that the pipe resistance connecting tower and reboiler minimizes, accomplish to try one's best short and straight.And consider from the angle of pipe design, because the pipeline diameter of reboiler is larger, temperature is higher, flexible poor, in order to meet the requirement of pipeline stress design, also to meet two reboiler " opens stops ", " a cold heat " impact on the equipment mouth of pipe simultaneously, require that pipeline will by meeting the requirement of pipeline flexible by natural torsion.The conflicting requirement of two design specialist often causes in actual device and occurs that reboiler resistance drop is excessive, or the problem such as pipe flange face leakage.
How to solve requirement conflicting between technological design and pipe design, just become the key that two reboiler is arranged.
Summary of the invention
Main purpose of the present invention is, overcome existing pair of reboiler and arrange the defect existed, and provide a kind of method for arranging of two reboilers newly, it can ensure production engineering specifications, can ensure pipe design requirement again.
Another object of the present invention is to, a kind of two reboiler equipment adopting above-mentioned method for arranging of the present invention to arrange are provided.
For achieving the above object, following technical scheme is adopted:
1. two reboiler shell side arranged in series;
2. be positioned at the reboiler of below, an entrance is established in bottom, is connected with liquid-phase outlet pipeline at the bottom of tower, and two outlets are established at top, is connected with two bottom inlets of the reboiler being positioned at top; An outlet is established at the reboiler top being positioned at top, and gas phase finally enters tower body through this outlet;
3. two reboiler tube sides establish separate gateway, can use different heat source mediums.
The object of the invention to solve the technical problems realizes by the following technical solutions.The method for arranging of the two reboilers proposed according to the present invention, it is arranged one on the other by two reboilers, establishes liquid phase entrance at the bottom of a tower, be connected with liquid-phase outlet pipeline at the bottom of tower bottom the reboiler below being positioned at, two outlets are established at top, are connected with two bottom inlets of the reboiler being positioned at top; A gaseous phase outlet is established at the reboiler top being positioned at top, and gas phase finally enters tower body through this outlet; The tube side of two reboilers establishes separate entry and exit.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
More preferably, the method for arranging of aforesaid pair of reboiler, wherein also comprises fixed connecting piece bottom the reboiler of top and between the reboiler top of below.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to two reboiler equipment that the present invention proposes, it comprises two reboilers arranged one on the other, and be provided with liquid phase entrance at the bottom of a tower bottom the reboiler below being positioned at, top is provided with two outlets, is connected with two bottom inlets of the reboiler being positioned at top; The reboiler top being positioned at top is provided with a gaseous phase outlet; The tube side of two reboilers is provided with separate entry and exit.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
More preferably, aforesaid pair of reboiler equipment, wherein also comprises fixed connecting piece bottom the reboiler of top and between the reboiler top of below.
By technique scheme, the present invention at least has following advantages and beneficial effect: after two reboiler adopts arrangement of the present invention, both the requirement of technological design to pipeline " short and straight " had been met as far as possible, meet again the stress requirement of pipe design to pipeline, ensure safe, steady, the long-term operation of two reboiler and pipeline thereof.Meanwhile, decrease the design quantity of pipe, pipe fitting, support, decrease occupation area of equipment, reduce construction cost, also reduce the operating cost of device simultaneously, for enterprise creates higher profit.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of description, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is certain company 1,400,000 tons/year of continuous reformer deheptanizer C402 and deheptanizer reboiler E402A/B layout drawing.
Fig. 2 is of the present invention pair of reboiler device structure schematic diagram.
[symbol description]
10:E402A deheptanizer reboiler 20:E402A/B deheptanizer reboiler
30:C402 deheptanizer
1: liquid phase entrance 2 at the bottom of tower: gaseous phase outlet
3: process liquid inlets 4: Process fluid outlet
5: steam inlet 6: condensate water exports
7: outlet 8: entrance
9: fixed connecting piece
Detailed description of the invention
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to method for arranging and two its detailed description of the invention of reboiler equipment, method, feature and effect thereof of the two reboilers proposed according to the present invention, be described in detail as follows.
As shown in Figure 2, for two reboiler device structure schematic diagrames of one embodiment of the invention, that is by the schematic diagram of method for arranging cloth postpone of of the present invention pair of reboiler, concrete method for arranging is: arranged one on the other by two reboilers, its shell side is connected in series, and establishes liquid phase entrance 1 at the bottom of a tower, be connected with liquid-phase outlet pipeline at the bottom of tower bottom the reboiler below being positioned at, top establishes two to export 7, is connected with two bottom inlets 8 of the reboiler being positioned at top; A gaseous phase outlet 2 is established at the reboiler top being positioned at top, and gas phase finally enters tower body through this outlet.The tube side of two reboilers establishes separate entry and exit, can use different heat source mediums.In the present embodiment, for making the connection of two reboilers more firm, be fixedly connected with the reboiler top being positioned at below bottom the reboiler being positioned at top, namely fixed connecting piece 9 be set bottom the reboiler of top and between the reboiler top of below.
At the beginning of device goes into operation, also do not produce in device and can, for the thermal source of liquid phase heating at the bottom of tower, steam can only be used as thermal source.At this moment, the steam inlet 5 and the condensate water outlet 6(that open the reboiler tube side being positioned at below refer to Fig. 2), in order to liquid phase at the bottom of heating tower, close process liquid inlets 3 and Process fluid outlet 4.Liquid phase at the bottom of tower enters heat exchanger by the reboiler shell side bottom inlet being positioned at below, and through being positioned at the reboiler heating of below, gas phase goes out heat exchanger from the reboiler top exit being positioned at top, returns tower body, completes heating process.
After device normally goes into operation, produce in device and for the thermal source of liquid phase heating at the bottom of tower, at this moment, process liquid inlets 3 and the Process fluid outlet 4 of the reboiler tube side being positioned at top can have been opened, in order to liquid phase at the bottom of heating tower, steam off entrance 5 and condensate water outlet 6.Liquid phase at the bottom of tower enters heat exchanger by the reboiler shell side bottom inlet being positioned at top, and through being positioned at the reboiler heating of top, gas phase goes out heat exchanger from the reboiler top exit being positioned at top, returns tower body, completes heating process.
Two reboiler adopts above arranged superposed scheme, the pipeline connecting tower and reboiler is in hot all the time, the operating mode of " one opens one stops ", " a cold heat " when need not consider that two reboiler is arranged apart, decrease the natural torsion requirement of pipeline, both met the requirement of technological design to pipeline " short and straight ", met again the stress requirement of pipe design to pipeline as far as possible.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. the method for arranging of a two reboiler, two reboilers are it is characterized in that to arrange one on the other, liquid phase entrance (1) at the bottom of a tower is established bottom reboiler below being positioned at, be connected with liquid-phase outlet pipeline at the bottom of tower, two outlets (7) are established at top, are connected with two bottom inlets (8) of the reboiler being positioned at top; A gaseous phase outlet (2) is established at the reboiler top being positioned at top, and gas phase finally enters tower body through this outlet; The tube side of two reboilers establishes separate entry and exit.
2. the method for arranging of according to claim 1 pair of reboiler, is characterized in that also comprising fixed connecting piece (9) bottom the reboiler of top and between the reboiler top of below.
3. two reboiler equipment, it is characterized in that it comprises two reboilers arranged one on the other, be provided with liquid phase entrance (1) at the bottom of a tower bottom reboiler below being positioned at, top is provided with two outlets (7), is connected with two bottom inlets (8) of the reboiler being positioned at top; The reboiler top being positioned at top is provided with a gaseous phase outlet (2); The tube side of two reboilers is provided with separate entry and exit.
4. according to claim 3 pair of reboiler equipment, is characterized in that also comprising fixed connecting piece (9) bottom the reboiler of top and between the reboiler top of below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475147.1A CN103845914B (en) | 2013-10-12 | 2013-10-12 | Arrangement method of double reboilers as well as double-reboiler equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310475147.1A CN103845914B (en) | 2013-10-12 | 2013-10-12 | Arrangement method of double reboilers as well as double-reboiler equipment |
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| CN103845914A CN103845914A (en) | 2014-06-11 |
| CN103845914B true CN103845914B (en) | 2015-05-20 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5402647A (en) * | 1994-03-25 | 1995-04-04 | Praxair Technology, Inc. | Cryogenic rectification system for producing elevated pressure nitrogen |
| CN101104116A (en) * | 2006-07-11 | 2008-01-16 | 蒋建君 | Double distilling device |
| CN101391152A (en) * | 2008-10-22 | 2009-03-25 | 天津大学 | Double-reboiler batch extraction rectification device and method using absorption heat pump |
| CN101782270A (en) * | 2010-02-26 | 2010-07-21 | 艾欧史密斯(中国)热水器有限公司 | Condensing gas boiler |
| CN103183577A (en) * | 2011-12-29 | 2013-07-03 | 中国石油化工集团公司 | Heat exchange system and heat exchange method for carbon five extractive distillation |
| CN203483879U (en) * | 2013-10-12 | 2014-03-19 | 洛阳瑞泽石化工程有限公司 | Double-reboiler equipment |
-
2013
- 2013-10-12 CN CN201310475147.1A patent/CN103845914B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5402647A (en) * | 1994-03-25 | 1995-04-04 | Praxair Technology, Inc. | Cryogenic rectification system for producing elevated pressure nitrogen |
| CN101104116A (en) * | 2006-07-11 | 2008-01-16 | 蒋建君 | Double distilling device |
| CN101391152A (en) * | 2008-10-22 | 2009-03-25 | 天津大学 | Double-reboiler batch extraction rectification device and method using absorption heat pump |
| CN101782270A (en) * | 2010-02-26 | 2010-07-21 | 艾欧史密斯(中国)热水器有限公司 | Condensing gas boiler |
| CN103183577A (en) * | 2011-12-29 | 2013-07-03 | 中国石油化工集团公司 | Heat exchange system and heat exchange method for carbon five extractive distillation |
| CN203483879U (en) * | 2013-10-12 | 2014-03-19 | 洛阳瑞泽石化工程有限公司 | Double-reboiler equipment |
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| CN103845914A (en) | 2014-06-11 |
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