CN101146599A - Shielding of heat exchangers in towers - Google Patents
Shielding of heat exchangers in towers Download PDFInfo
- Publication number
- CN101146599A CN101146599A CNA2005800492289A CN200580049228A CN101146599A CN 101146599 A CN101146599 A CN 101146599A CN A2005800492289 A CNA2005800492289 A CN A2005800492289A CN 200580049228 A CN200580049228 A CN 200580049228A CN 101146599 A CN101146599 A CN 101146599A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tower
- shield
- liquid
- vapor
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
- B01D5/0063—Reflux condensation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Disclosed is a method and an apparatus for exchanging heat in a column by passing a first vapor phase through a heat exchanger (4) in the column to exchange heat with a first stream and produce a second vapor phase in the column. The second vapor phase is passed through a shielding device (12) located above the heat exchanger (4) and the shielding device (12) prevents descending liquid from contacting the heat exchanger (12). The shielding device (12) may be interposed between two heat exchangers (12, 22) in the column.
Description
Technical field
The present invention relates in tower, carry out the method and apparatus that heat is transmitted.The present invention relates more specifically to protect heat exchangers in towers so that this heat exchanger does not contact with liquid.
Background technology
Many industry such as petrochemical industry, chemistry, petroleum refining all use tower to come separating mixture.This tower is generally the vertical container of cylindricality, and wherein, the steam of rising contacts with the liquid of decline, carries out transfer components, separates and move towards the top and the bottom of tower respectively.Usually, tower includes the vapour-liquid contact device, with the contact that strengthens liquid and vapor capacity with separate.The example of vapour-liquid contact device comprises tower tray and filler.Much all has quite changeable design in these vapor/liquid contact devices.For example, the tray type of vapor/liquid contact device comprises bubble cap tray, sieve tower tray, valve tower tray and multiple lower ducts tower tray, and these tower trays allow liquid to descend and steam rising passing through tower tray usually.Filler comprises the dumped packing and the structured packing of filling with for example Raschig ring (Raschig rings) filler or Bel's saddle type (Berl saddles) filler.For realizing the separation miscellaneous of handled mixture than big difference, the specific service condition of each tower is significantly different.Use the process example of this tower to comprise distillation in stripping (stripping), rectifying and various forms of distillation such as fractionation, steam distillation, reaction distillation and the divided wall column.These technologies can be carried out or by continuous-mode operation in batches.The common objective of design and running is to reduce the installation cost and the operating cost of tower.Under a lot of situations, the equipment and the effectiveness that reduce cost and mainly be conceived to be used to provide heat and heat is discharged in the tower.
Normally, heat is provided in the following way or heat is discharged in tower: from tower, shift out a plume, make its heat exchanger that passes through the tower shell outside, and make so be cooled or at least a portion of this plume of heating is back in the tower.For example, the overhead vapor that extracts from top of tower can be delivered to the heat exchanger of the overhead system (overhead system) that is arranged in the tower shell outside, this heat exchanger makes the condenses from overhead vapor, and at least a portion of the liquid that is condensed is returned in the tower so that backflow to be provided.Heat exchanger is usually in a similar fashion by providing steam to the liquid stream heating of discharging from tower bottom to tower.Steam and liquid stream can be taken from the middle part between top of tower and the bottom, are back in the tower after heating or cooling.
US 2,044, and 372, US 4,218,289, US 5,507,356 and DE 198 30 163 A1 have described and used various heat exchangers in towers with the condensing steam at least in part at the top of tower.
Compare with heat exchanger being placed the tower shell outside, use heat exchangers in towers to have multiple benefit.For example, but cancel the not only cost saving but also can save the space of some overhead system equipment and relevant supporting structure.Simultaneously, internal exchanger is compared with suitable outside overhead system can have lower pressure drop, and when operating under being lower than atmospheric pressure, it is extremely important that this point is proved to be.Come in the application of cooling tower inner vapor at two heat exchangers of many uses, owing to second heat exchanger being placed outside the making of tower first heat exchanger placed the benefit of gained is badly damaged in the tower.
Summary of the invention
Two heat exchangers are placed come the cooling tower inner vapor to have a such problem in the tower: the liquid that forms at heat exchange of top part device contacts with lower heat exchanger and influences its operation.The liquid that descends can for example change desired heat transmission, thereby makes the shortage of heat that reclaims to be used for other place.In addition, the liquid of decline can flood and hinder some or all the vapor flow paths in the heat exchanger, thereby causes pressure drop increase and/or fluctuation of service.The present invention provides solution a kind of novelty, cost-effective for foregoing problems.The present invention also can be used for the heat exchangers in towers of screening, described heat exchangers in towers any exist the place of dropping liq, for example between two vapor/liquid contact devices with the vapor phase heat exchange.
One embodiment of the present of invention provide by make first vapor phase in the tower by the heat exchanger in the tower to produce second vapor phase is carried out heat exchange in tower method with the first plume heat-shift and in tower.Make second vapor phase by placing the shield of heat exchanger top.This shield prevents that the liquid that descends from contacting with heat exchanger.
In expansion embodiment of the present invention, above shield, set up second heat exchanger.At least a portion in second vapor phase of shield top by second heat exchanger in the tower to carry out heat exchange with second plume.
Apparatus embodiments of the present invention provides a kind of equipment that the heat exchanger interior with placing tower carries out heat exchange that is used for.A vapor phase and the first plume fluid in this heat exchanger and the tower are communicated with.The shield that comprises dividing plate is set above heat exchanger, and this shield has a liquid outlet and a steam channel.This steam channel has in vapour inlet that is communicated with the tower fluid below the shield and the vapor outlet port that is communicated with the tower fluid above shield.The setting of shield prevents that heat exchanger from contacting with the liquid of decline.
Description of drawings
Fig. 1 illustrates the partial side view of the tower of one embodiment of the invention;
Fig. 2 is the zoomed-in view in zone " B " circled among Fig. 1;
Fig. 3 is the sectional top view along hatching line 3-3 shown in Figure 1;
Fig. 4 illustrates the partial side view of the tower of one embodiment of the invention;
Fig. 5 is the sectional top view along hatching line 5-5 shown in Figure 4;
Fig. 6 A and 6B represent the sectional view and the vertical view of one embodiment of the invention respectively;
Fig. 7 A and 7B represent the sectional view and the vertical view of one embodiment of the invention respectively;
Fig. 8 represents the sectional view of one embodiment of the invention; And
Fig. 9 A is the vertical view of one embodiment of the invention, and Fig. 9 B and 9C are the side views of this embodiment.
The specific embodiment
Can design as required according to tower of the present invention, also can be generally used for for example reacting any application of---but the typical case is used at for example various types of destilling tower separating mixtures---and be complementary with tower wherein.
The present invention is described in detail with reference to the accompanying drawings.These accompanying drawings are rough schematic views of not to scale (NTS), only illustrate to understand the necessary tower parts of the present invention.
Fig. 1 illustrates the top of the tower 1 with housing 2.First vapor phase is from 34 risings of uppermost vapor/liquid contact apparatus and by first heat exchanger 4.This heat exchanger 4 also can be described to the indirect type heat exchanger, wherein, carries out the not directly contact of fluid of heat exchange each other.The form and the details of the vapor/liquid contact device in the tower are not critical to the present invention.Therefore, they can be tower tray, the filler of any kind, or the liquid of steam that rises and decline contacts and other separated device therein, as reaction zone.In a unshowned embodiment, first vapor phase by other element as placing adsorbent bed or the catalyst bed between the uppermost vapor/liquid contact apparatus 34 and first heat exchanger 4.In the tower that does not comprise the vapor/liquid contact device, liquid is introduced in the tower or the maximum horizontal height that forms in tower equals the level height of uppermost vapor/liquid contact apparatus 34.Be extended with optional baffle plate 10 from housing 2, to guide most first vapor phase by first heat exchanger 4.This baffle plate can be made by being suitable in the tower any suitable material of service condition.This baffle plate 10 can be configured to by one or more, and can be fixed on the housing 2 with fixed to one another by the method for welding, seal weld, bolt connection and liner any routines such as (gasketing).In unshowned another embodiment, can remove or be provided with baffle plate 10, walk around first heat exchanger 4. with a part that allows first vapor phase
First plume arrives the inlet of first heat exchanger 4 by first pipeline 6, and flows downward in hollow plate inside in a parallel manner, and it flows to opposite with the flow direction of first vapor phase that rises by the interval between the plate.This first plume flows out via heat exchanger 4 outlets, and by second pipeline 8.First condensate that freeze-outs from first vapor phase, this first condensate drops to uppermost vapor/liquid contact apparatus 34 from first heat exchanger 4, with at least a portion of the backflow that forms tower.In a unshowned embodiment, the condensate that forms in the heat exchanger 4 is collected, measures and/or is distributed on the vapor/liquid contact device 34.In unshowned another embodiment, the condensate of collection is measured and/or is dispensed to other position in the tower, and takes out from tower according to specific application requirements.
The definite of the quantity of steam channel 18 and design must weigh concrete application purpose, for example makes the pressure drop minimum by shield 12 when keeping the required distribution of steam above shield 12.Similarly, the quantity of dividing plate must be determined according to the simplification of concrete application and manufacturing and installation with layout.Dividing plate can be formed by any suitable material, and formation has any suitable thickness.They can be formed or be formed by adding many of being connected together by single-piece.As long as tower tray allows steam to contact with liquid by shield and steam, then also can be with tower tray as dividing plate or part dividing plate.But, must transform or be provided with tower tray together with another dividing plate, contact with heat exchanger 4 to prevent liquid.In being combined with the embodiment of tower tray, shield provides the contact of another grade vapor/liquid, carries out heat transmission and quality transmission between vapor phase and the liquid phase in same section of tower.Each single-piece is added be connected together or it is being added when being connected on the housing 2, these single-pieces should comprise can prevent substantially that liquid from dropping to structure or seal on first heat exchanger 4 by shield.The sealing example comprises seal weld or uses pad and bolt.Multiple supporting member such as club, protrusion or add is connected in dividing plate, housing or the tower cable on other element etc. all can make a plurality of dividing plates relative to each other fixing as requested.
Above shield 12, second vapor phase is by second heat exchanger 22, and second condensate that freeze-outs from this second vapor phase.The optional second baffle 49 that is similar to baffle plate 10 extends from housing 2, to guide most second vapor phase by second heat exchanger 22.Second plume passes through the inlet that the 3rd pipeline 24 arrives second heat exchanger 22, and passes through this second heat exchanger, the direction that its flow direction rises between plate transverse to steam in the hollow plate internal flow of series connection; This plume flows out this second heat exchanger 22 via outlet, and by the 4th pipeline 26.The residual vapor without condensation from second heat exchanger is all discharged from tower as overhead vapor product 28.
Second condensate lands from second heat exchanger, and by the dividing plate 14 of shield 12 and 16 interceptions.Be provided with the liquid outlet 21 of shield 12 in housing 2, this liquid outlet 21 is communicated with the liquid line 30 that is used for liquid is shifted out shield 12.Shown in enlarged drawing of " B " part among Fig. 2, it is overlapping 38 that the lowest part of dividing plate 14 is arranged to have above liquid line 30 lowest parts, so that liquid is freely discharged from shield 12.In unshowned embodiment, described shield can comprise the little hole of dripping, to guarantee for example in (liquid line 30) current drainage when closing.But, any water clock by dripping the hole will be not can appreciable impact heat exchanger 4 operation.Preferably, drip Kong Buyu heat exchanger 4 vertical non-alignment, contact with heat exchanger 4 to prevent water clock liquid.Liquid line 30 can comprise the valve (not shown), thereby make the liquid that is blocked to be directed to other position in the tower, for example illustrated uppermost vapor/liquid contact apparatus 34, or be used as fluid product 32 and from tower, discharge, or between these two kinds of purpose positions, distribute as required.The fluid-tight post 33 with " J " portion of pipe prevents the steam influent pipeline that makes progress.Those of ordinary skill in the art also knows other device such as liquid trap (liquid trap) of being used to realize this purpose.Alternatively, can from tower, extract fluid product 36 from uppermost vapor/liquid contact apparatus 34.
In the embodiment shown in fig. 1, heat exchanger 4 and 22 all is the part of plate-type condenser and/or plate-type condenser, and vapor phase rises by this condenser through the roughly vertical plate of direction.The preferred plate type heat exchanger that uses, compare with the heat exchanger of other type, the bigger coefficient of heat transfer and bigger surface area per unit volume can be provided usually, and make that the rising route of vapor phase on the exposed surface of heat exchanger plate is more straight, thereby reduce the pressure drop of flowing through heat exchanger.
The design details that has of two heat exchangers is not main points of the present invention, but and marked change to satisfy concrete requirement of using.The geometry that other of heat exchanger is suitable comprises: tubulose or shell-and-tube; Vapor phase descends or level is passed through heat exchanger; Following current, adverse current or cross-current are arranged.Similarly, the function of heat exchanger also can change according to the requirement of concrete application.For example, first heat exchanger 4 can be designed for heating first vapor phase, but more typically, this heat exchanger 4 is condenser or the fractional distilling tubes that are used to produce required backflow, or for example is designed to be used for the water vapour of other purpose or to be used for and to handle the water vapour that stream carries out thermal reducing the device total quantity by producing in first plume.Second heat exchanger 22 can be designed for the various product specification that increase the product yield or satisfy the overhead vapor product, as required storing temperature or purity standard.
Fig. 3 illustrates the layout of shield 12 above first heat exchanger 4.This illustrates the profile of first heat exchanger 4 of dividing plate 14 and 16 belows.This illustrates these dividing plates can how overlapping, to cover to the Vertical Channel of heat exchanger 4 by tackling the liquid that descends in the tower and guiding this liquid to arrive liquid line 30 by liquid outlet.As mentioned above, supporting member 20 makes dividing plate 16 spaced apart with the top of vertical cylindrical portion 13.This supporting member 20 adds the planar section of dividing plate 14 on the bottom side that is connected on dividing plate 16.Optionally dripping eaves are depicted as 15.In unshowned other embodiment, the supporting member that is used for dividing plate 16 can extend to housing 2 and/or tower internals from the top side and/or the edge of dividing plate 16.
In unshowned another embodiment, dividing plate 16 can comprise isolated " V " groove of a plurality of almost parallels, these " V " grooves are overlapped into basic covering steam channel 18, thereby the liquid that interception descends and with its along avris guide housings 2 to drop to the planar section of dividing plate 14, more straight steam rising path is provided between " V " groove simultaneously.This layout is suitable for the application under the low pressure drop situation.
Fig. 4 and Fig. 5 illustrate of the present invention in tower 1 embodiment between two vapor/liquid contact devices, described tower 1 has housing 2.Elements different with respective element structure among Fig. 1 in Fig. 4 identify in the mode that respective digital adds " ' ".First vapor phase from lower vapor/liquid contact device 50 rise and by heat exchanger 4 '.As previously mentioned, the concrete form of vapor/liquid contact device and heat exchanger and details are not main points of the present invention.
First plume by first pipeline 6 arrive first heat exchanger 4 ' inlet, following current is upwards flowed in the hollow plate in a parallel manner in first vapor phase that rises by the interval between each plate, via an outlet flow out first heat exchanger 4 ', and by second pipeline 8, to heat as required or to cool off first vapor phase.If heat exchanger 4 ' be is used for from first vapor phase freeze-out condenser or the fractional distilling tube of condensate, then condensate will drop to lower vapor/liquid contact device 50.
First heat exchanger 4 ' generation second vapor phase, this second vapor phase shield 12 ' steam channel 18 ' in by this shield 12 '.(not shown) in another embodiment, some steams that rise from lower vapor/liquid contact device walk around heat exchanger 4 ', equally also pass through shield 12 '.The dividing plate 14 of two inclinations of this shield 12 ' comprise ' and 16 ', the inner surface of they and housing 2 define jointly steam channel 18 '.Dividing plate 14 ' and 16 ' vertical component that is used for current drainage and the horizontal component that is used to screen can be had.Dividing plate 14 ' a comprise plane inclined part and an optionally vertical wall 13 ', this vertical wall 13 ' define a string with housing 2 inner surfaces.Steam channel 18 ' dividing plate 14 ' the crooked inner surface like the top edge of string and housing 2 of clinoplain part between have a vapour inlet 17 ', and have be limited to dividing plate 16 ' with vertical wall 13 ' top edge between rectangle vapor outlet port 19 '.Therefore, steam passes through shield by path flow shown in the arrow " A ".By structure dividing plate 14 mentioned above ' and 16 ' and it is attached on the housing.Make dividing plate 14 ' and 16 ' as required angulations and overlapping, it is not contacted with the liquid that descends with the protection heat exchanger.Optionally vertically part 13 ' further prevent liquid landing is by steam channel 18 ' and contact with heat exchanger.
The liquid that dividing plate 14 ' and 16 ' interception is fallen from higher vapor/liquid contact device 51.Dividing plate 14 ' lowest edge and the inner surface of housing 2 on add the top section that is connected to wall 35, with limit shield 12 ' liquid outlet 21 '.Wall 35 is from dividing plate 14 ' extend downwards, with housing 2 common limit liquid lines 30 '.Therefore, liquid from shield freely discharge by liquid outlet 21 ' arrival liquid line 30 '.As shown in the figure, the liquid that liquid line 30 ' guiding is blocked arrives lower vapor/liquid contact device 50, or arrives other position in the tower via unshowned liquid distributing device.Liquid trap 40 provides the liquid sealing, upwards flows to liquid line to prevent steam.In other unshowned embodiment, liquid outlet 21 ' and liquid line 30 ' branch can be arranged and/or have other outlet and pipeline, be delivered to Ta Nei and/or the outer a plurality of destinations of tower with the liquid that will be blocked.
Fig. 5 illustrate shield 12 ' heat exchanger 4 ' above layout, wherein be illustrated in dividing plate 14 ' and the heat exchanger 4 of 16 ' below ' profile.
Fig. 6-9 illustrates the non-limiting example of other layout about shield, example that can actual unlimited modification, and described shield will protect first heat exchanger that it is not contacted with the liquid that descends, and provide steam channel for the steam of rising.The heat exchanger (not shown) will occupy the big area of section of tower below these shields.In the embodiment shown in Fig. 6-9, at least one not vertically alignment contacts with heat exchanger to prevent liquid in vapour inlet, vapor outlet port and heat exchanger.If employed heat exchanger only occupies area of section less in the tower in certain is used, so just be easy to be provided with the shield of this heat exchanger of screening equally, for example in divided wall column.Elements different with counter element structure among other figure among Fig. 6,7,8 and 9 are used " a ", " b ", " c " and " d " sign respectively.
Fig. 6 A and 6B are expressed as the rectangle plane portion that covers the rectangle vapour inlet 17a among the dividing plate 14a with dividing plate 16a, this dividing plate at the downward knuckle in periphery place so that the liquid that is blocked turn to and drop down onto on the dividing plate 14a.The supporting member 20a that is used for dividing plate 16a can be attached to the vertical part 13a of dividing plate 14a.Dividing plate 14a has storage liquid ditch (liquid retention trench) 44.In housing 2, be provided with liquid outlet 21a in portion's section on the border of formation storage liquid ditch 44.In another unshowned embodiment, storage liquid ditch is downward-sloping from the edge like string of dividing plate 14a.
Dividing plate 14b shown in Fig. 7 A and the 7B has the storage liquid ditch 44b around its whole girth, this storage liquid ditch 44b by the inner surface portion of housing 2 limit.Dividing plate 14b has covered the whole area of section except that vapour inlet 17b and liquid outlet 21b of tower.Form covers vapour inlet 17b for the dividing plate 16b of the pipe of band bending so that the liquid that descends deflects drops down onto on the dividing plate 14b.Can utilize another bending or the jut 25 at vapor outlet port 19b place further to provide liquid to screen.Four liquid outlet 21b of storage liquid ditch 44b bottom provide with the fluid of liquid line 30b and have been communicated with.Liquid line 30b stop liquid and when unshowned heat exchanger contacts with the guiding fluid housing in and/or other position of hull outside.When liquid line is communicated with the vapor space fluid, utilize the liquid sealing of " J " portion for example or liquid trap upwards to flow to liquid line 30b to stop steam.
Fig. 8 illustrates a single dividing plate 14c, and this dividing plate 14c covers the area of section of tower fully, with the unshowned heat exchanger below screening by the liquid of interception decline with its guiding liquid outlet 21c.Vapour inlet 17c in the housing 2 provides below shield with the fluid of tower and has been communicated with, and the vapor outlet port 19c in the housing 2 provides above shield with the fluid of tower and has been communicated with.Therefore, shield comprises the steam channel 18c that is positioned at housing 2 outsides.For concrete application, the height of the vapor outlet port 19c of---gradient existence---and dividing plate 14c top if can adjust the gradient of dividing plate 14c as required.The level height of liquid outlet 21c lowest part is positioned at the below of the level height of vapor outlet port 19c lowest part, is used to make liquid not flow into steam channel 18c and from path that shield is discharged thereby provide.The part of housing 2 between vapour inlet 17c and vapor outlet port 19c is provided with second partition 13c.
Compare with accompanying drawing before, the edge of the dividing plate in the previous accompanying drawing is represented with single solid line, and Fig. 9 A, 9B and 9C represent the edge of dividing plate or the part of dividing plate with two lines, and every line is represented a side.Rectangle vapour inlet 17d comprises an opening in dividing plate 14d, this dividing plate 14 comprises the vertical pipeline 13d that area of section is a rectangle, and this vertical pipeline 13d partly defines the steam channel 18d that is made by four lateral confinements.Dividing plate 16d covers the top edge of pipeline 13d.Adding two supporting member 20d that are connected on the longer side of pipeline 13d makes dividing plate 16d and pipeline 13d separately.Dividing plate 16d also supports by two short end plates 45 that add on the shorter side that is connected on pipeline 13d, and spaced apart with pipeline 13d.The longer side of each of dividing plate 16d all has from the upwardly extending wall 46 of the top plan of dividing plate 16d, to form a groove, thereby the feasible liquid of being tackled by dividing plate 16d is directed to the planar section of dividing plate 14d, and prevents that by short end plate 45 this liquid from entering steam channel 18d.Shown vapor outlet port 19d is positioned at the two longer sides of pipeline 13d.
Claims (11)
1. method of carrying out heat exchange in tower comprises:
Make first vapor phase that the vapor/liquid contact device in the tower rises by the heat exchanger in the tower, to carry out heat exchange with first plume, this heat exchanger generates second vapor phase in tower;
Make second vapor phase pass through shield; This shield is placed in the top of described heat exchanger, and prevents that the liquid that descends from contacting with described heat exchanger.
2. method according to claim 1 is characterized in that, the heat exchanger that described first vapor phase rising is passed through is the first indirect type heat exchanger; At least a portion in described second vapor phase is passed through second heat exchanger in the tower above described shield, to carry out heat exchange with second plume.
3. method according to claim 1 and 2 is characterized in that, also comprises delivering to other position in the tower from least a portion the liquid that described shield descends.
4. method according to claim 1 and 2 is characterized in that, described heat exchanger makes first vapor phase produce condensate.
5. method according to claim 4 is characterized in that, comprises that also at least a portion of collecting in the described condensate also moves to this partial condensation thing outside the tower.
6. method according to claim 1 and 2 is characterized in that, described shield and wherein said first vapor phase heat exchanger that passes through that rises is placed between two vapor/liquid contact devices.
7. method according to claim 1 and 2 is characterized in that each heat exchanger all is positioned at the top of uppermost vapor/liquid contact apparatus.
8. equipment that is used for carrying out heat exchange in tower comprises:
Place tower (1) inner and produce the vapor/liquid contact device (34) of vapor phase;
Place the heat exchanger (4) that tower (1) is inner, be positioned at described vapor/liquid contact device (34) top, the interior vapor phase and the first plume fluid of this heat exchanger (4) and tower (1) is communicated with;
Place the shield (12) of described heat exchanger top, this shield has a liquid outlet (21) and a steam channel, this steam channel (18) has vapour inlet (17) that is communicated with tower (1) fluid in shield (12) below and the vapor outlet port (19) that is communicated with tower (1) fluid in shield (18) top, this shield comprises dividing plate (14,16); And
This equipment is provided for protecting heat exchanger (4) to contact with the liquid of decline to prevent this heat exchanger.
9. equipment according to claim 8, it is characterized in that, described shield (12) comprises at least two dividing plates (14,16), in the dividing plate at least one (14) limits described vapour inlet (17), and at least one (16) in the dividing plate limit described vapor outlet port (19), and described shield (12) is configured such that the lowermost portion of liquid outlet (21) is positioned at the below of the lowermost portion of described vapor outlet port (19).
10. according to Claim 8 or 9 described equipment, it is characterized in that, also comprise placing second heat exchanger (22) that is positioned at shield (12) top in the tower (1); Second vapor phase and the second plume fluid in this second heat exchanger (22) and the tower (1) are communicated with.
11. according to Claim 8 or 9 described equipment, it is characterized in that described heat exchanger (4) is the indirect type heat exchanger.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2005/009861 WO2006104476A2 (en) | 2005-03-24 | 2005-03-24 | Shielding of heat exchangers in columns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101146599A true CN101146599A (en) | 2008-03-19 |
Family
ID=37053816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800492289A Pending CN101146599A (en) | 2005-03-24 | 2005-03-24 | Shielding of heat exchangers in towers |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1861665A4 (en) |
| JP (1) | JP2008534257A (en) |
| CN (1) | CN101146599A (en) |
| WO (1) | WO2006104476A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362431A (en) * | 2016-11-15 | 2017-02-01 | 德艾柯工程技术（上海）有限公司 | Built-in condensing device of distillation tower |
| CN106693425A (en) * | 2016-12-13 | 2017-05-24 | 安徽科茂能源科技有限公司 | High-efficiency energy-saving plate type heat exchange distillation device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8043417B2 (en) * | 2008-06-30 | 2011-10-25 | Uop Llc | Column installed condenser |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE526211A (en) * | ||||
| US2093895A (en) * | 1936-02-08 | 1937-09-21 | Mojonnier Bros Co | Condenser |
| US2617758A (en) * | 1944-07-13 | 1952-11-11 | Raffinage Cie Francaise | Partial condensation of vapors |
| NL78499C (en) * | 1950-09-07 | |||
| US3927153A (en) * | 1973-08-14 | 1975-12-16 | Bethlehem Steel Corp | Process for direct cooling of corrosive industrial cases |
| US4218289A (en) * | 1976-03-08 | 1980-08-19 | The Upjohn Company | Distillation apparatus with a grid partial condenser |
| DE3214065C1 (en) * | 1982-04-16 | 1983-12-15 | Anton Steinecker Maschinenfabrik Gmbh, 8050 Freising | Pan haze condenser |
| DE3214958C2 (en) * | 1982-04-22 | 1986-10-30 | L. & C. Steinmüller GmbH, 5270 Gummersbach | Regenerative gas-gas heat exchanger in column design with heat transferring elements as a fluidized bed |
| WO1991011238A1 (en) * | 1990-02-02 | 1991-08-08 | Sports Marine International Pty. Ltd. | Vacuum distillation using suction apparatus |
| DE4300131C2 (en) * | 1993-01-06 | 1999-08-05 | Hoechst Ag | Column with integrated heat exchanger |
| GB2283435B (en) * | 1993-11-04 | 1997-03-26 | Ebortec Limited | A deodoriser |
| DE19923439A1 (en) * | 1999-05-21 | 2000-11-23 | Lausitzer Teppichfaserwerk Gmb | Multistage apparatus for evaporating water from a mixture with caprolactam without a vacuum comprises a sump, heater, packing, cooler and conical cover |
-
2005
- 2005-03-24 JP JP2008502958A patent/JP2008534257A/en not_active Withdrawn
- 2005-03-24 CN CNA2005800492289A patent/CN101146599A/en active Pending
- 2005-03-24 EP EP05730019A patent/EP1861665A4/en not_active Withdrawn
- 2005-03-24 WO PCT/US2005/009861 patent/WO2006104476A2/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362431A (en) * | 2016-11-15 | 2017-02-01 | 德艾柯工程技术（上海）有限公司 | Built-in condensing device of distillation tower |
| CN106693425A (en) * | 2016-12-13 | 2017-05-24 | 安徽科茂能源科技有限公司 | High-efficiency energy-saving plate type heat exchange distillation device |
| CN106693425B (en) * | 2016-12-13 | 2023-04-07 | 浙江科茂能源科技有限公司 | Efficient energy-saving plate type heat exchange distillation device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006104476A3 (en) | 2007-11-01 |
| WO2006104476A2 (en) | 2006-10-05 |
| JP2008534257A (en) | 2008-08-28 |
| EP1861665A4 (en) | 2009-09-02 |
| EP1861665A2 (en) | 2007-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8043417B2 (en) | Column installed condenser | |
| US9457291B2 (en) | Combined collector and distributor | |
| US8052126B2 (en) | Liquid distribution in co-current contacting apparatuses | |
| CA2744812C (en) | De-entrainment device | |
| US6883788B1 (en) | Shielding of heat exchangers in columns | |
| US8235362B2 (en) | Fluid distribution to parallel flow vapor-liquid contacting trays | |
| US5755279A (en) | Heat exchanger | |
| CN101146599A (en) | Shielding of heat exchangers in towers | |
| US6095504A (en) | Supports for stacked fractionation tray end pieces | |
| US5775129A (en) | Heat exchanger | |
| JP2008039386A (en) | Reflux condenser | |
| TWI701074B (en) | Vapor-liquid contacting apparatus and process with cross contacting | |
| US5667643A (en) | Heat exchanger and double distillation column | |
| KR20240053623A (en) | Steam distribution system of concentric reboiler | |
| KR100905460B1 (en) | Shielding of heat exchangers in columns | |
| TW201941823A (en) | Vapor-liquid contacting apparatus and process with downcomer at shell | |
| RU2729241C1 (en) | Heat-mass exchange column | |
| EP3856382B1 (en) | A perforated-tray column and a method of revamping the same | |
| CA3196509A1 (en) | A multistage liquid distributor for a separation device comprising a dual-trough pre-distributor | |
| WO1998051390A1 (en) | Vapor liquid contact tray with relief weir sumps | |
| JP2004154685A (en) | Liquid diffuser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |