CN102895793A - Packed tower and application method thereof - Google Patents
Packed tower and application method thereof Download PDFInfo
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- CN102895793A CN102895793A CN201210381974XA CN201210381974A CN102895793A CN 102895793 A CN102895793 A CN 102895793A CN 201210381974X A CN201210381974X A CN 201210381974XA CN 201210381974 A CN201210381974 A CN 201210381974A CN 102895793 A CN102895793 A CN 102895793A
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- oil trap
- complete solidifying
- solidifying section
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a packed tower and an application method of the packed tower. According to the packed tower, at least two full-condensation sections are arranged at the top of a tower body, a cold reflux inlet is arranged between every two adjacent full-condensation sections; a first cold reflux inlet is arranged at the top of the tower body; the tower body is further provided with at least one oil collecting groove; an outlet of the oil-collecting groove is sequentially connected with a circulating pump and a heat recovery unit; an outlet of the heat recovery unit is divided into two paths, wherein one path is connected to the cold reflux inlet, and the other path is connected to a cooler; and output of the cooler is connected with the first cold reflux inlet at the top of the tower body. The application method of the packed tower comprises the following steps that: the circulating pump is used for pumping out materials stored in the oil collecting groove of the tower body; after the materials are cooled by the heat recovery unit, a part of the materials directly enter the cold reflux inlet and further enter the second full-condensation section, and the second full-condensation section is used for condensing entering gaseous-phase materials into aqueous-phase materials; and the other part of the materials enter the cooler to be cooled, the cooled materials enter the first cold reflux inlet and then enter the first full-condensation section, and the first full-condensation section is used for condensing residual gaseous-phase materials not in the second full-condensation section to aqueous-phase materials.
Description
Technical field
The present invention relates to a kind of packed tower and application process thereof, particularly packed tower reclaim heat as the condensation high-temperature material application process.
Background technology
Packed tower is a kind of of tower.Fill the suitably filler of height in the tower, to increase by two kinds of contact surfaces between fluid.Being widely used in the operations such as GAS ABSORPTION, distillation, extraction, is one of most important equipment during chemical industry, petrochemical industry and oil refining are produced.Usually for vacuum column (vacuum tower), need under the condition of high vacuum degree condition, operate, this type of tower is integrated in tower top with top gaseous phase material cooler, return tank generally speaking, and the top continues to extract on-condensible gas out with vavuum pump, to keep the vacuum in the tower.This type of vacuum column arranges one section cold reflux and an oil trap at cat head usually.Material in the oil trap is drawn out of, and is cooled to lower temperature with cooler, returns cat head cold gas phase materials again, and a part is as the hot reflux of product discharge and tower in addition.
For controlling not superelevation of cat head fixed gas phase temperature, to guarantee the normal operation of vavuum pump, generally cooling off the thing cold reflux needs temperature of charge lower, this material needs amount of cooling water larger, the part Lowlevel thermal energy can't reclaim, and has not only wasted heat, has also increased the cooler load.Can only reclaim the heat of half, the cooler load is large; Also need enable behind the recirculated water cold during summer.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of effective recovery low temperature heat energy, good energy-conserving effect, a kind of packed tower low to the cooler burden requirement.
Technical scheme of the present invention is a kind of packed tower, comprises tower body, the tower bottom heating device at the bottom of being provided with rectifying section in the tower body, being arranged on the stripping section of rectifying section below and being arranged on tower; Described tower body top is provided with at least two sections complete solidifying section, is provided with the cold reflux import between every adjacent two complete solidifying sections; The top of tower body is provided with cold reflux the first import and the outlet of cat head on-condensible gas; Also be provided with at least one oil trap on the tower body, oil trap is positioned at the below of complete solidifying section; The outlet of oil trap connects circulating pump and heat recovery unit successively by connecting pipe; The outlet of heat recovery unit is divided into two-way, and the connecting pipe of leading up to is directly linked the cold reflux import; Cooler is directly linked by connecting pipe in another road; The output of cooler is connected to cold reflux first import at tower body top by connecting pipe; Described connecting pipe is provided with choke valve.
Described oil trap is arranged on the below of complete solidifying section, removes the situation that a complete solidifying section below arranges a plurality of oil traps.
Further improvement of the present invention: the quantity of described complete solidifying section is two, is the first complete solidifying section and the second complete solidifying section.Be arranged to two sections demands that satisfied most users, can reach the technique effect of expectation.
Further improvement of the present invention: the quantity of described oil trap is one.Be arranged to the common design that an oil trap is affiliated industry technology personnel, and mechanism is simple, low cost of manufacture, easy to maintenance, has satisfied the demand of most users, can reach the technique effect of expectation.
Further improvement of the present invention: described oil trap is arranged on the below of the second complete solidifying section.
Further improvement of the present invention: the quantity of described oil trap is two.
Further improvement of the present invention: described oil trap is separately positioned on the below of the first complete solidifying section and the second complete solidifying section.
The invention has the beneficial effects as follows: increased and reclaimed high potential temperature heat, alleviated the cooler load, saved production cost.
A kind of application process of the said equipment: comprise the steps:
Circulating pump will leave the interior material extraction of oil trap of tower body in;
Material is after the heat recovery unit cooling: a part of material directly enters the cold reflux import by connecting pipe and enters into the second complete solidifying section, and the second complete solidifying section is condensed into liquid phase material with the material that enters; Another part material enters in the cooler by connecting pipe and cools off, and cooled material enters cold reflux the first import by connecting pipe and enters into the first complete solidifying section, and the first complete solidifying section is condensed into liquid phase material with the material that enters;
The on-condensible gas of tower body cat head is discharged from the cat head on-condensible gas outlet that cat head arranges.
Should be used for prior art compares: reclaimed heat more, reduced the cooler load.Increased the service life of cooler; Guarantee under lower temperature, getting rid of of cat head fixed gas, guarantee that simultaneously the second complete solidifying section oil trap material remains on higher temperature, is convenient to the recycling of heat.
Another kind of technical scheme of the present invention: a kind of packed tower, comprise tower body, described tower body top is provided with the first complete solidifying section and the second complete solidifying section, the below of the first complete solidifying section and the second complete solidifying section is respectively arranged with the first oil trap and the second oil trap, is provided with the cold reflux import between the first complete solidifying section and the second complete solidifying section; The top of tower body is provided with cold reflux the first import and the outlet of cat head on-condensible gas; The outlet of the first oil trap connects circulating pump and heat recovery unit by connecting pipe; The outlet of heat recovery unit is directly linked the cold reflux import by connecting pipe; The outlet of the second oil trap connects circulating pump and cooler by connecting pipe, and cooler output is connected to cold reflux first import at tower body top by connecting pipe.
The present invention's beneficial effect compared with prior art: lower floor's oil trap temperature is close with rectifying section top gas phase temperature, has improved potential temperature, has also brought larger surplus to pressure operation simultaneously.The liquid phase load of levels filler can suitably be controlled, and avoids the too high phenomenon of lower floor's filler liquid phase load.
A kind of application process of aforementioned device comprises the steps:
Circulating pump will leave the first oil trap and the extraction of the material in the second oil trap of tower body in;
The material of extracting out in the first oil trap enters the cold reflux import by connecting pipe and enters into the second complete solidifying section after the heat recovery unit cooling, and the second complete solidifying section is condensed into liquid phase material with the material that enters;
The material of extracting out from the second oil trap enters cold reflux the first import by connecting pipe and enters into the first complete solidifying section after the cooler cooling, and the first complete solidifying section is condensed into liquid phase material with the material that enters;
The on-condensible gas of tower body cat head is discharged from the cat head on-condensible gas outlet that cat head arranges.
The present invention's beneficial effect compared with prior art: lower floor's oil trap temperature is close with the upper strata temperature, has improved potential temperature, has also brought larger surplus to pressure operation simultaneously.The liquid phase load of levels filler can suitably be controlled, and avoids the too high phenomenon of lower floor's filler liquid phase load.
Description of drawings
Fig. 1 is embodiments of the invention 1 structural representations.
Fig. 2 is embodiments of the invention 2 structural representations.
Fig. 3 is embodiments of the invention 3 structural representations.
Wherein: 1, tower body, 1-1, the first complete solidifying section, 1-2, the second complete solidifying section, 1-3, cold reflux import, 1-4, oil trap, 1-5, cold reflux the first import, 1-6, the outlet of cat head on-condensible gas, 2, circulating pump, 3, heat recovery unit, 4, cooler, 5, rectifying column, 6, carry and heat up in a steamer tower, 7, the tower bottom heating device.
The specific embodiment
1 to Fig. 3 the present invention is further described by reference to the accompanying drawings:
A kind of packed tower of the present invention comprises: tower body 1, circulating pump 2, heat recovery unit 3 and cooler 4.The first complete solidifying section 1-1, the second complete solidifying section 1-2, cold reflux import 1-3, cold reflux the first import 1-5, the outlet of cat head on-condensible gas 1-6, oil trap 1-4, rectifying column 5 are set on the tower body 1, carry and heat up in a steamer tower 6 and tower bottom heating device 7.
Circulating pump 2, heat recovery unit 3 and cooler 4 are connected on the tower body 1 by connecting pipe.
What heat recovery unit 3 was concrete is the element of the absorbing heats such as heat exchanger, heat pump.
Use procedure of the present invention is as follows:
Outside material enters tower body 1, and the light component material leaves in the oil trap 1-4 after separating by rectifying, extracts out by the material that circulating pump 2 will leave in the oil trap 1-4; Material is behind heat exchanger, and heat exchanger absorbs the heat that material itself contains, so that the temperature of material reduces; Enter cold reflux import 1-3 through the material part behind the heat exchanger by connecting pipe and enter into the second complete solidifying section 1-2, the second complete solidifying section 1-2 is condensed into liquid phase material with the material that enters.Account for the overwhelming majority of whole material by the material of this part, remaining material enters cooler 4 interior coolings by connecting pipe in addition, cooled material enters cold reflux the first import 1-5 by connecting pipe and enters the first complete solidifying section 1-1, and the first complete solidifying section 1-1 is condensed into liquid phase material with the material that enters; This part mainly is to cool off remaining uncooled material after the second complete solidifying section 1-2 condensation.The on-condensible gas of tower body 1 cat head is discharged outside the tower from the cat head on-condensible gas outlet 1-6 that cat head arranges.
Specific embodiment:
Embodiment 1:
As shown in Figure 1: packed tower comprises: tower body 1, circulating pump 2, heat recovery unit 3 and cooler 4.The first complete solidifying section 1-1, the second complete solidifying section 1-2, cold reflux import 1-3, cold reflux the first import 1-5, rectifying column 5 are set on the tower body 1, carry and heat up in a steamer tower 6, tower bottom heating device 7, cat head on-condensible gas outlet 1-6 and an oil trap 1-4, this oil trap 1-4 is arranged on the below of the second complete solidifying section 1-2.
What heat recovery unit 3 was concrete is the element of the absorbing heats such as heat exchanger, heat pump.
The oil trap 1-4 outlet of this device links to each other with circulating pump 2 by connecting pipe, and after circulating pump 2 connected heat exchanger, the outlet of heat exchanger divided two-way, and the connecting pipe of leading up to is directly connected to cold reflux import 1-3; Another road links to each other with cooler by connecting pipe, and the output of cooler is connected to cold reflux the first import 1-5.
Embodiment 2:
As shown in Figure 2: packed tower comprises: tower body 1, circulating pump 2, heat recovery unit 3 and cooler 4.The first complete solidifying section 1-1, the second complete solidifying section 1-2, cold reflux import 1-3, cold reflux the first import 1-5, rectifying column 5 are set on the tower body 1, carry and heat up in a steamer tower 6, tower bottom heating device 7, cat head on-condensible gas outlet 1-6 and two oil trap 1-4, two oil trap 1-4 are separately positioned on the below of the second complete solidifying section 1-2 and the below of the first complete solidifying section 1-1.
What heat recovery unit 3 was concrete is the element of the absorbing heats such as heat exchanger, heat pump.
Two oil trap 1-4 outlets of this device all link to each other with circulating pump 2 by connecting pipe, and after circulating pump 2 connected heat exchanger, the outlet of heat exchanger divided two-way, and the connecting pipe of leading up to is directly connected to cold reflux import 1-3; Another road links to each other with cooler by connecting pipe, and the output of cooler is connected to cold reflux the first import 1-5.
Embodiment 3:
As shown in Figure 3: packed tower comprises: tower body 1, circulating pump 2, heat recovery unit 3 and cooler 4.The first complete solidifying section 1-1, the second complete solidifying section 1-2, cold reflux import 1-3, cold reflux the first import 1-5, rectifying column 5 are set on the tower body 1, carry and heat up in a steamer tower 6, tower bottom heating device 7, the outlet of cat head on-condensible gas 1-6, the first oil trap and the first oil trap the second oil trap, the first oil trap and the first oil trap the second oil trap are separately positioned on the below of the first complete solidifying section 1-1 and the below of the second complete solidifying section 1-2.
What heat recovery unit 3 was concrete is the element of the absorbing heats such as heat exchanger, heat pump.
The first oil trap connects with the heat exchanger that links to each other by connecting pipe and links to each other the outlet of heat exchanger and cold reflux import 1-3; The second oil trap connects with the cooler 4 that links to each other by connecting pipe and links to each other, and the outlet of cooler 4 links to each other with cold reflux the first import.
Being applied as of this device: circulating pump 2 will leave the first oil trap and the extraction of the material in the second oil trap of packed tower in; The material of extracting out in the first oil trap enters cold reflux import 1-3 by connecting pipe and enters into second a complete solidifying section 1-2 after the heat exchanger cooling, and second a complete solidifying section 1-2 is condensed into liquid phase material with the material that enters; The material of extracting out from the second oil trap enters cold reflux the first import 1-5 by connecting pipe and enters into first a complete solidifying section 1-1 after cooler 4 coolings, and first a complete solidifying section 1-1 is condensed into liquid phase material with the material that enters; The on-condensible gas of packed tower cat head is discharged from the cat head on-condensible gas outlet that cat head arranges.
Certain factory's Dealkylater is example, specifies:
The top of tower load is 118t/h at present, and the oil trap temperature is 120 ℃, reclaims high level heat through heat exchanger, and this high-temperature material is recovered utilization, and temperature is 80 ℃ low-temperature material after the heat exchange.Heat exchange rear section material is as two sections cold refluxs, and flow is 365t/h, and partial material is cooled to 35 ℃ through cooler again, and as one section cold reflux, flow reduced before this section material was transformed relatively, had reduced amount of cooling water, had alleviated the air cooling load, had saved production cost.As shown in table 1.
Table 1 is transformed forward and backward recovery heat contrast table
Annotate: 1, with transform the pre-process and post-process amount when identical data acquisition calculate.
2, total amount of heat is for reclaiming heat and cooler cooling heat sum.
As can be seen from the above data, with cat head entirely solidifying section regard an integral body as, complete solidifying section needs to adopt two sections cold refluxs to reclaim heat in the suitable situation of extraneous amount of cooling water (total amount of heat) more, has reduced the heat that cools off, two heats are roughly suitable.Therefore adopt two sections cold refluxs can effectively reclaim heat.
Claims (9)
1. a packed tower comprises tower body (1), the tower bottom heating device (7) at the bottom of being provided with rectifying section (5) in the tower body (1), being arranged on the stripping section (6) of rectifying section (5) below and being arranged on tower; It is characterized in that: described tower body (1) top is provided with at least two sections complete solidifying section, is provided with cold reflux import (1-3) between every adjacent two complete solidifying sections; The top of tower body (1) is provided with cold reflux the first import (1-5) and cat head on-condensible gas outlet (1-6); Also be provided with at least one oil trap (1-4) on the tower body (1), oil trap (1-4) is positioned at the below of complete solidifying section; The outlet of oil trap (1-4) connects circulating pump (2) and heat recovery unit (3) by connecting pipe; The outlet of heat recovery unit (3) is divided into two-way, and the connecting pipe of leading up to is directly linked cold reflux import (1-3); Cooler (4) is directly linked by connecting pipe in another road; The output of cooler (4) is connected to cold reflux first import (1-5) at tower body (1) top by connecting pipe; Described connecting pipe is provided with flow control valve.
2. packed tower according to claim 1 is characterized in that: the quantity of described complete solidifying section is two, is the first complete solidifying section (1-1) and second complete solidifying section (1-2).
3. packed tower according to claim 2, it is characterized in that: the quantity of described oil trap (1-4) is one.
4. packed tower according to claim 3 is characterized in that: described oil trap (1-4) is arranged on the below of the second complete solidifying section (1-2).
5. packed tower according to claim 2, it is characterized in that: the quantity of described oil trap (1-4) is two.
6. packed tower according to claim 5 is characterized in that: described oil trap (1-4) is separately positioned on below of the first complete solidifying section (1-1) and second complete solidifying section (1-2).
7. a packed tower comprises tower body (1); It is characterized in that: described tower body (1) top is provided with the first complete solidifying section (1-1) and the second complete solidifying section (1-2), the below of the first complete solidifying section (1-1) and the second complete solidifying section (1-2) is respectively arranged with the first oil trap and the second oil trap, is provided with cold reflux import (1-3) between the first complete solidifying section (1-1) and the second complete solidifying section (1-2); The top of tower body (1) is provided with cold reflux the first import (1-5) and cat head on-condensible gas outlet (1-6); The outlet of the first oil trap connects circulating pump (2) and heat recovery unit (3) by connecting pipe; The outlet of heat recovery unit (3) is directly linked cold reflux import (1-3) by connecting pipe; The outlet of the second oil trap connects circulating pump (2) and cooler (4) by connecting pipe, and cooler (4) output is connected to cold reflux first import (1-5) at tower body (1) top by connecting pipe.
8. according to claim 1 to the application process of 6 each described packed towers as condensation high-temperature material recovery heat, it is characterized in that, comprise the steps:
Circulating pump (2) will leave the interior material extraction of oil trap (1-4) of tower body (1) in;
Material is after heat recovery unit (3) cooling: a part of material directly enters cold reflux import (1-3) by connecting pipe and enters into the second complete solidifying section (1-2), and the second complete solidifying section (1-2) is condensed into liquid phase material with the gaseous phase materials that enters; Another part material enters cooling in the cooler (4) by connecting pipe, cooled material enters cold reflux the first import (1-5) by connecting pipe and enters into the first complete solidifying section (1-1), and the first complete solidifying section (1-1) is condensed into liquid phase material with the material that enters;
The on-condensible gas of tower body (1) cat head is discharged from the cat head on-condensible gas outlet (1-6) that cat head arranges.
9. described packed tower is characterized in that as the application process of condensation high-temperature material recovery heat according to claim 7, comprises the steps:
Circulating pump (2) will leave the first oil trap and the extraction of the material in the second oil trap of tower body (1) in;
The material of extracting out in the first oil trap enters cold reflux import (1-3) by connecting pipe and enters into the second complete solidifying section (1-2) after heat recovery unit (3) cooling, and the second complete solidifying section (1-2) is condensed into liquid phase material with the material that enters;
The material of extracting out from the second oil trap enters cold reflux the first import (1-5) by connecting pipe and enters into the first complete solidifying section (1-1) after cooler (4) cooling, and the first complete solidifying section (1-1) is condensed into liquid phase material with the material that enters;
The on-condensible gas of tower body (1) cat head is discharged from the cat head on-condensible gas outlet (1-6) that cat head arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381974.XA CN102895793B (en) | 2012-10-10 | 2012-10-10 | Packed tower and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381974.XA CN102895793B (en) | 2012-10-10 | 2012-10-10 | Packed tower and application method thereof |
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| Publication Number | Publication Date |
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| CN102895793A true CN102895793A (en) | 2013-01-30 |
| CN102895793B CN102895793B (en) | 2014-07-23 |
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| CN201210381974.XA Active CN102895793B (en) | 2012-10-10 | 2012-10-10 | Packed tower and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704895A (en) * | 2021-02-04 | 2021-04-27 | 丁昌林 | Energy-conserving rectifier unit of chemical industry monomer |
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| GB398099A (en) * | 1933-02-17 | 1933-09-07 | Foster Wheeler Corp | Improvements relating to the fractional distillation of oils and apparatus therefor |
| CN2242892Y (en) * | 1996-02-09 | 1996-12-18 | 清华大学 | Compound crude-oil decompression tower |
| CN1915471A (en) * | 2005-08-19 | 2007-02-21 | 中国石油集团工程设计有限责任公司 | Cooling technique through top circulation for regeneration tower of solvent |
| CN101376068A (en) * | 2008-09-17 | 2009-03-04 | 天津大学 | Atmospheric vacuum distillation method and apparatus with vacuum flash vaporizer |
| CN201710986U (en) * | 2010-07-07 | 2011-01-19 | 中国石油化工股份有限公司 | Pressure-reducing and deep-drawing distiller |
| CN202909475U (en) * | 2012-10-10 | 2013-05-01 | 中国石油化工集团公司 | Packed tower |
-
2012
- 2012-10-10 CN CN201210381974.XA patent/CN102895793B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB398099A (en) * | 1933-02-17 | 1933-09-07 | Foster Wheeler Corp | Improvements relating to the fractional distillation of oils and apparatus therefor |
| CN2242892Y (en) * | 1996-02-09 | 1996-12-18 | 清华大学 | Compound crude-oil decompression tower |
| CN1915471A (en) * | 2005-08-19 | 2007-02-21 | 中国石油集团工程设计有限责任公司 | Cooling technique through top circulation for regeneration tower of solvent |
| CN101376068A (en) * | 2008-09-17 | 2009-03-04 | 天津大学 | Atmospheric vacuum distillation method and apparatus with vacuum flash vaporizer |
| CN201710986U (en) * | 2010-07-07 | 2011-01-19 | 中国石油化工股份有限公司 | Pressure-reducing and deep-drawing distiller |
| CN202909475U (en) * | 2012-10-10 | 2013-05-01 | 中国石油化工集团公司 | Packed tower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704895A (en) * | 2021-02-04 | 2021-04-27 | 丁昌林 | Energy-conserving rectifier unit of chemical industry monomer |
| CN112704895B (en) * | 2021-02-04 | 2022-05-13 | 黄冈Tcl环境科技有限公司 | Energy-conserving rectifier unit of chemical industry monomer |
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| CN102895793B (en) | 2014-07-23 |
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