CN105771556A - Integrated heat exchanging absorption tower - Google Patents
Integrated heat exchanging absorption tower Download PDFInfo
- Publication number
- CN105771556A CN105771556A CN201610144704.5A CN201610144704A CN105771556A CN 105771556 A CN105771556 A CN 105771556A CN 201610144704 A CN201610144704 A CN 201610144704A CN 105771556 A CN105771556 A CN 105771556A
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- CN
- China
- Prior art keywords
- heat exchanger
- tower body
- tower
- absorption tower
- truncated cone
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to an integrated heat exchanging absorption tower. The integrated heat exchanging absorption tower comprises a tower body, a primary gas distributor, a secondary gas distributor, a liquid distributor, an annular heat exchanger, a central liquid collecting pipe, and an annular ladder type protection cover, wherein the liquid distributor is arranged above the secondary gas distributor; the primary gas distributor is arranged above the liquid distributor; the annular heat exchangers are arranged above the liquid distributor; a cold fluid inlet and a cold fluid outlet of the annular heat exchanger extend out the tower body; the annular heat exchanger surrounds around the central liquid collecting pipe; the upper end of the central liquid collecting pipe is connected with the annular ladder type protection cover, and the lower end of the central liquid collecting pipe is connected with the liquid distributor; a static hydraulic pipe is arranged at the lower end of the central liquid collecting pipe; the static hydraulic pipe extends out of the tower body and is communicatedwith the tower body through a bypass pipeline; an inlet of the static hydraulic pipe is formed in the position, corresponding to the annular heat exchanger, of the tower body. According to the integrated heat exchanging absorption tower, the difficult problem caused by that the viscosity of particles or fluid streams contained in a feeding gas fluid stream of the heat exchanging absorption tower is greatly changed along with the change of the temperature can be solved.
Description
Technical field
The present invention relates to the carrying out heat transmission in petroleum chemical industry and mass transfer apparatus, be specifically related to integral type heat exchange absorption tower.
Background technology
Many industrial circles such as petroleum refining, petrochemical industry, coal liquifaction all can use tower to carry out the separating-purifying of mixture.Distillation or absorption are that separating mixture is the most frequently used, realize industrialized typical unit the earliest to be operated.Distillation is to cause air-liquid two-phase system by heating liquid mixture, utilizes the difference of each component relative volatility in liquid mixture to realize the operating process separating and purifying.Absorption is the unit operation separating one or more components therein from admixture of gas, utilizes each component different solubility in certain liquid flux in mixing gas to be easily separated by admixture of gas.
In many industrial circles such as petroleum refining, petrochemical industry, coal liquifaction or be in and study rank and operation operating mode in, operational factor fluctuates very big sometimes, what have has a lot of uncertain factor,: in coal liquifaction in the separation and energy recovery etc. of cracking gas, processing medium variation with temperature viscosity can change a lot, the fluctuation wanting Appropriate application heat energy, uncertain factor and operating parameter may result in equipment and is not normally functioning.The coupling of tower and heat transmission equipment being usually and draws first-class stock from tower, after heat exchange, fluid part or all returns in tower.For the Appropriate application solving heat energy and the problem avoiding operation fluctuation to bring, tower and heat exchanger are united two into one and arrange heat exchanger in tower by the present invention.Heat exchanger problem that may be present is set inside tower: the liquid of top spray with carry out washing absorption from tower bottom by the gas of heat exchanger, the spray liquid declined can flood and hinder the some or all of gas in heat exchanger to flow, thus causing that in tower, fluid distrbution inequality, pressure drop increase and/or tower run shakiness.
Generally, provide heat to tower or the heat in tower is removed, being usually from tower, draw first-class stock so that it is carrying out heat exchange by the heat exchanger outside tower shell, and make part or all being heated or cooled stream stock return in tower.
Summary of the invention
It is an object of the invention to provide integral type heat exchange absorption tower, this integral type heat exchange absorption tower is for solving the granule that contains in the feed stream stock of heat exchange absorption tower in prior art or stream stock variation with temperature viscosity B coefficent is relatively big and the difficult problem brought.
The technical solution adopted for the present invention to solve the technical problems is: this integral type heat exchange absorption tower includes tower body, one-level gas distributor, secondary gas distributor, liquid distribution trough, circular heat exchanger, center collector tube, annular ladder type protective cover, liquid distribution trough is arranged on above secondary gas distributor, one-level gas distributor is arranged on above liquid distribution trough, circular heat exchanger arranges above liquid distribution trough, tower body is stretched out in the cold inlet of circular heat exchanger and cold flow outlet, circular heat exchanger is looped around outside the collector tube of center, collector tube upper end, center connects annular ladder type protective cover, collector tube lower end, center connects liquid distribution trough, collector tube lower end, center is provided with hydrostatic pipe；Hydrostatic pipe is stretched out tower body and is connected with tower body by by-pass line, and hydrostatic tube inlet is arranged on the tower body place corresponding with circular heat exchanger.
In such scheme, circular heat exchanger is vertical, for shell-and-tube heat exchanger or spiral heat exchanger.
In such scheme, annular ladder type protective cover is longitudinally sequentially connected with by multiple anisodiametric truncated cone-shaped ring bodies and constitutes; truncated cone-shaped ring body is inverted; truncated cone-shaped ring body topmost is welded on tower body inwall; the truncated cone-shaped ring body of bottom is fixing with circular heat exchanger to be connected; middle truncated cone-shaped ring body is supported by diagonal brace, and diagonal brace is circumferentially evenly arranged between the truncated cone-shaped ring body of tower body and centre.
In such scheme, adjacent two truncated cone-shaped ring bodies are welded by distance rod or distance sink tube pipe adds pull bar and is connected with.
In such scheme, the lower end of truncated cone-shaped ring body is provided with chamfering.
In such scheme, circular heat exchanger and center collector tube are integrated, circular heat exchanger upper/lower terminal is fixed in tower body by supporting construction, the protruding circle in lower end of heat exchanger connects eaves, connects eaves and fixes with tower body and adopt sealing ring to seal, it is prevented that gas leakage current.
The method have the advantages that
1, the present invention can solve the problem that the difficult problem that the granule contained in the feed stream stock of heat exchange absorption tower or stream stock variation with temperature viscosity B coefficent bring relatively greatly；Solution heat exchangers in towers outlet does not contact with cleaning mixture and heat exchangers in towers is worked off one's feeling vent one's spleen and is uniformly distributed and cleaning mixture uniform contact in tower..
2, the present invention is the tower that tower is contained within heat exchange equipment; enter rebreather after gas and liquid contact heat-exchanging and carry out wall-type heat exchange; carrying out contact heat-exchanging washing with the liquid got off on tower top again by the ring protection cover of top, the gas after heat exchange leaves from tower top.The invention provides a kind of novel, economy effective solution again.Present invention may also apply to the chemical industry occasion of cycle heat exchange, be especially suitable for the occasion of energy recovery.
3, The present invention reduces the support of heat exchanger and civil engineering structure；There is relatively low pressure drop；Reduce or save the cleaning of heat exchanger, simple to operate；Reduce floor space, save space, reduce investment and operating cost.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of the present invention；
Fig. 2 is the top view of annular ladder type protective cover in Fig. 1 of the present invention；
Fig. 3 is the enlarged drawing of A in Fig. 1.
In figure: 1 protective cover, 2 tower bodies, 3 circular heat exchangers, 4 one-level gas distributors, 5 liquid distribution troughs, 6 secondary gas distributors, 7 center collector tubes, 8 hydrostatic pipes, 9 diagonal braces, 10 truncated cone-shaped ring bodies, 11 distance rods, 12 cold inlet, 13 cold flow outlets, 14 gas accesses.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated:
As shown in Figure 1; this integral type heat exchange absorption tower includes tower body 2, one-level gas distributor 4, secondary gas distributor 6, liquid distribution trough 5, circular heat exchanger 3, center collector tube 7, annular ladder type protective cover 1; liquid distribution trough 5 is arranged on above secondary gas distributor 6; one-level gas distributor 4 is arranged on above liquid distribution trough 5; circular heat exchanger 3 arranges above liquid distribution trough 5; circular heat exchanger 3 is vertical, for shell-and-tube heat exchanger or spiral heat exchanger.Tower body 2 is stretched out in the cold inlet 12 of circular heat exchanger 3 and cold flow outlet 13, and circular heat exchanger 3 is looped around outside center collector tube 7, and circular heat exchanger 3 and center collector tube 7 are integrated.Center collector tube 7 upper end connects annular ladder type protective cover 1, and upper liquid is by the center collector tube 7 of annular ladder type protective cover 1 inflow heat exchanger.Center collector tube 7 lower end connects liquid distribution trough 5, and center collector tube 7 lower end is provided with hydrostatic pipe 8；Hydrostatic pipe 8 is stretched out tower body 2 and is connected with tower body 2 by by-pass line, hydrostatic pipe 8 entrance is arranged on tower body 2 place corresponding with circular heat exchanger 3, in present embodiment, hydrostatic pipe 8 outlet is arranged on below secondary gas distributor 6 on tower body 2, by-pass line is provided with adjustment valve, for regulating center collector tube 7 liquid holdup height, regulate and secondary gas distributor 6 mass-and heat-transfer degree.
Hydrostatic pipe 8 exports liquid if, return in tower, it is necessary to have the hole that hydrostatic pipe 8 passes through on sealing ring, and hydrostatic pipe 8 extends secondary gas distributor 6 lower end；If the upper end outlet of hydrostatic pipe 8 is connected to tower bottom tube line, then need not have the hole that hydrostatic pipe 8 passes through on sealing ring.
Circular heat exchanger is constituted by arranging branched pipe between upper and lower header, and upper header all communicates with each branched pipe, and each branched pipe all communicates with lower header.
Shown in Fig. 2, Fig. 3; annular ladder type protective cover 1 is longitudinally sequentially connected with by multiple anisodiametric truncated cone-shaped ring bodies 10 and constitutes; adjacent two truncated cone-shaped ring bodies 10 are welded by distance rod 11 or distance sink tube pipe adds pull bar and is connected with; being formed stepped, annular ladder type protective cover 1 number of turns and ladder type height can be adjusted according to operating parameter condition.Truncated cone-shaped ring body 10 is inverted, and the lower end of truncated cone-shaped ring body 10 is provided with chamfering, in order to whereabouts liquid comes together in center collector tube 7 smoothly.Truncated cone-shaped ring body 10 topmost is welded on tower body 2 inwall, the truncated cone-shaped ring body 10 of bottom is fixing with circular heat exchanger 3 to be connected, middle truncated cone-shaped ring body 10 is supported by diagonal brace 9, and diagonal brace 9 is circumferentially evenly arranged between the truncated cone-shaped ring body 10 of tower body 2 and centre.Annular ladder type protective cover 1 is for the redistribution of heat exchanger exit gas, and the liquid got off in tower top carries out contact mass-and heat-transfer, and ensures that heat exchanger gas outlet will not be flooded.
Heat exchanger shell 2 is for carrying out wall-type heat exchange with the gas in tower, center collector tube 7 is not involved in heat exchange, the length of center collector tube 7 is more than the height of circular heat exchanger 3, the lower end of center collector tube 7 exceeds circular heat exchanger 3 one segment distance for being connected with liquid distribution trough 5, circular heat exchanger 3 upper/lower terminal is fixed in tower body 2 by supporting construction, the protruding circle in lower end of circular heat exchanger 3 connects eaves, connects eaves and fixes with tower body 2 and adopt sealing ring to seal, it is prevented that gas leakage current.
Present invention process flow process is: gas enters into one-level gas distributor 4 and secondary gas distributor 6 by the gas access, middle and lower part 14 of tower; the gas of one-level gas distributor 4 distribution does not contact with liquid and enters directly into circular heat exchanger 3; the gas contact heat-exchanging that the liquid held in center collector tube 7 and secondary gas distributor 6 are distributed by liquid distribution trough 5; after contact heat-exchanging, gas enters into circular heat exchanger 3; gas after heat exchange carries out the redistribution of gas by annular ladder type protective cover 1, and the liquid on the gas after distribution and tower top carries out contact mass-and heat-transfer.
Claims (6)
- null1. an integral type heat exchange absorption tower，It is characterized in that: this integral type heat exchange absorption tower includes tower body (2)、One-level gas distributor (4)、Secondary gas distributor (6)、Liquid distribution trough (5)、Circular heat exchanger (3)、Center collector tube (7)、Annular ladder type protective cover (1)，Liquid distribution trough (5) is arranged on two grades of distributor (6) tops，One-level gas distributor (4) is arranged on liquid distribution trough (5) top，Circular heat exchanger (3) arranges liquid distribution trough (5) top，The cold inlet (12) of circular heat exchanger (3) and cold flow outlet (13) stretch out tower body (2)，Circular heat exchanger (3) is looped around center collector tube (7) outward，Center collector tube (7) upper end connects annular ladder type protective cover (1)，Center collector tube (7) lower end connects liquid distribution trough (5)，Center collector tube (7) lower end is provided with hydrostatic pipe (8)；Hydrostatic pipe (8) is stretched out tower body (2) and is connected with tower body (2) by by-pass line, and hydrostatic pipe (8) entrance is arranged on tower body (2) place corresponding with circular heat exchanger (3).
- 2. integral type heat exchange absorption tower according to claim 1, it is characterised in that: described circular heat exchanger (3) is for vertical, for shell-and-tube heat exchanger or spiral heat exchanger.
- 3. integral type heat exchange absorption tower according to claim 1 and 2, it is characterized in that: described annular ladder type protective cover (1) is longitudinally sequentially connected with by multiple anisodiametric truncated cone-shaped ring bodies (10) and constitutes, truncated cone-shaped ring body (10) is inverted, truncated cone-shaped ring body (10) topmost is welded on tower body (2) inwall, the truncated cone-shaped ring body (10) of bottom is fixing with circular heat exchanger (3) to be connected, middle truncated cone-shaped ring body (10) is supported by diagonal brace (9), diagonal brace (9) is circumferentially evenly arranged between tower body (2) and middle truncated cone-shaped ring body (10).
- 4. integral type heat exchange absorption tower according to claim 3, it is characterised in that: described adjacent two truncated cone-shaped ring bodies (10) are added pull bar be connected with by distance rod (11) welding or distance sink tube pipe.
- 5. integral type heat exchange absorption tower according to claim 4, it is characterised in that: the lower end of described truncated cone-shaped ring body (10) is provided with chamfering.
- 6. integral type heat exchange absorption tower according to claim 5, it is characterized in that: described circular heat exchanger (3) and center collector tube (7) are integrated, circular heat exchanger (3) upper/lower terminal is fixed in tower body (2) by supporting construction, the protruding circle in lower end of circular heat exchanger (3) connects eaves, connects eaves and fixes with tower body (2) and adopt sealing ring to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144704.5A CN105771556B (en) | 2016-03-15 | 2016-03-15 | Integral type heat exchange absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144704.5A CN105771556B (en) | 2016-03-15 | 2016-03-15 | Integral type heat exchange absorption tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105771556A true CN105771556A (en) | 2016-07-20 |
| CN105771556B CN105771556B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610144704.5A Expired - Fee Related CN105771556B (en) | 2016-03-15 | 2016-03-15 | Integral type heat exchange absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105771556B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038396A (en) * | 2019-05-08 | 2019-07-23 | 上海蓝滨石化设备有限责任公司 | Cooling device built in a kind of absorption tower |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201410354Y (en) * | 2009-06-09 | 2010-02-24 | 吕文广 | Waste gas absorption device for nitrate production |
| US20120234167A1 (en) * | 2009-11-11 | 2012-09-20 | Lurgi Gmbh | Gas Scrubber Having an Integrated Heat Exchanger |
| CN202751925U (en) * | 2012-08-20 | 2013-02-27 | 中国石油化工集团公司 | Tower for flue gas cleaning |
| CN104338419A (en) * | 2014-11-11 | 2015-02-11 | 南通星球石墨设备有限公司 | Combined hydrogen chloride absorption tower |
-
2016
- 2016-03-15 CN CN201610144704.5A patent/CN105771556B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201410354Y (en) * | 2009-06-09 | 2010-02-24 | 吕文广 | Waste gas absorption device for nitrate production |
| US20120234167A1 (en) * | 2009-11-11 | 2012-09-20 | Lurgi Gmbh | Gas Scrubber Having an Integrated Heat Exchanger |
| CN202751925U (en) * | 2012-08-20 | 2013-02-27 | 中国石油化工集团公司 | Tower for flue gas cleaning |
| CN104338419A (en) * | 2014-11-11 | 2015-02-11 | 南通星球石墨设备有限公司 | Combined hydrogen chloride absorption tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038396A (en) * | 2019-05-08 | 2019-07-23 | 上海蓝滨石化设备有限责任公司 | Cooling device built in a kind of absorption tower |
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| Publication number | Publication date |
|---|---|
| CN105771556B (en) | 2017-03-01 |
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Granted publication date: 20170301 Termination date: 20210315 |