CN104587943A - Inner heat exchange-type bubble column reactor - Google Patents
Inner heat exchange-type bubble column reactor Download PDFInfo
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- CN104587943A CN104587943A CN201410499952.2A CN201410499952A CN104587943A CN 104587943 A CN104587943 A CN 104587943A CN 201410499952 A CN201410499952 A CN 201410499952A CN 104587943 A CN104587943 A CN 104587943A
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- heat exchange
- transfer plate
- heat transfer
- column reactor
- pillow formula
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
- B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
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Abstract
The invention relates to an inner heat exchange-type bubble column reactor. The reactor comprises a bubble column, a gas distributor and an inner heat exchange member. The gas distributor is arranged at the bottom of the bubble column. The inner heat exchange member is arranged in the bubble column and is immersed in reaction materials. The inner heat exchange member comprises a pillow-type heat transfer plate pair and a fluid distribution pipe. The pillow-type heat transfer plate pair is a plate cavity part which is prepared from two metal plates by multiple spot welding and is used for heat exchange of a heat exchange medium. Two ends of the pillow-type heat transfer plate pair are provided with ports respectively connected to fluid distribution pipes. Compared with the prior art, the inner heat exchange-type bubble column reactor has the advantages of flexible structural adjustment, high heat exchange efficiency, low cost and cleaning convenience.
Description
Technical field
The present invention relates to a kind of internal heat exchange type bubbling column reactor, especially relate to a kind of new and effective internal heat exchange type bubbling column reactor.
Background technology
Bubble tower loads onto distributor in tower body bottom, gas dispersion carried out in a liquid a kind of tower reactor of mass transfer, heat transfer.Be best suited for slow chemical reaction system or with a large amount of fuel factor reaction system.This kind of obvious shortcoming of reactor types is: liquid phase has larger back-mixing; Gas phase has larger pressure drop.When fuel factor is larger, heat exchange unit can be set outside Ta Nei or tower.Wherein, heat exchange unit is set in tower and more directly and effectively can controls reaction, and also easier in operation.At present, in tower, heat exchange element mainly contains coiled pipe and tubulation, pipe in by cooling or heat medium, reaction system is cooled or give heat, although this kind of method has certain convenience, heat exchange efficiency is not very high.In addition, for gas liquid reaction, the size of bubble is directly connected to gas-liquid mass transfer area, and under same empty tower gas velocity, bubble is less, and illustrate that dispersion is better, Gas-liquid interfacial area is larger, and reaction is carried out more thorough; Improve Air Bubble Size relevant with fluid distrbution, fluid distrbution has much relations with tower internals, and for the reactor types having interior heat exchange element, except gas distributor, the structure also with heat exchange internals has very large relation.
In order to strengthen heat exchange further, generally making fluid carry out under turbulent flow condition, if now increase the speed that superficial gas velocity can accelerate air pocket generation, causing the growth of gas holdup to slow down.In order to address this problem, generally consider in bubble tower, add some cross members, play bubble crushing and the effect adding strong turbulence, thus effectively strengthening the heat transfer of gas-liquid.Related documents have studied and replaces light pipe with Needle fin tube, and Needle fin tube is that aciculiform fin is vertically fixed on tubulation outer wall, and pin wing can not only accelerate Hydrodynamic turbulence, can improve fluid distrbution, broken air pocket simultaneously; But this kind of form in actual applications, easily cause gas short circuit, be unfavorable for that industry is amplified.
Summary of the invention
Object of the present invention is exactly provide that a kind of structural adjustment is flexible, heat exchange efficiency is high, cost is low, the internal heat exchange type bubbling column reactor of easy to clean to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions: a kind of internal heat exchange type bubbling column reactor, it is characterized in that, this reactor comprises bubble tower, gas distributor and interior heat exchange element, described gas distributor is arranged on bottom bubble tower, and described interior heat exchange element is arranged in bubble tower and is immersed between reaction mass; Described interior heat exchange element comprise pillow formula heat transfer plate to and dispense tube, described pillow formula heat transfer plate is to being formed the parts that can carry out the plate journey cavity of heat exchange for heat transferring medium by multi-point welding by two pieces of metallic plates, and its two ends are provided with port and connect dispense tube respectively.
Described interior heat exchange element is made up of cylindrical arrangement multipair pillow formula heat transfer plate, each pillow formula heat transfer plate between by plate, distance pieces is located, the diameter of whole interior heat exchange element is suitable with bubble tower internal diameter, is welded and fixed, is immersed in whole reaction system with tower body.Can select different radial plate to the pillow formula heat transfer plate of length to arranging according to the flexible in size of bubble tower, and adjust the spacing between each pillow formula heat transfer plate, plate adjusts according to heat transfer requirements and allowable pressure drop value spacing and contact density.
Described pillow formula heat transfer plate passes through multi-point welding punching press aftershaping to by two metal sheets, and surrounding rolling weldering sealing, only respectively stays a port at two ends.
Described dispense tube comprises distribution header and dispensing branch, and described dispensing branch connects each pillow formula heat transfer plate respectively to the port at two ends, then connects distribution header in the form of annular discs, and distribution header connects heat transferring medium gateway.
Described pillow formula heat transfer plate is evenly provided with multiple solder contacts to upper, and multiple solder contacts is crisscross arranged, and contact density is 200 ~ 5000/m
2, contact spacing is 20 ~ 100mm.
Described bubble tower comprises cylindrical shell and is arranged on the reactant liquor entrance on cylindrical shell, and reactant liquor exports, reaction gas entrance, and reaction gas exports, heat exchanging fluid entrance, and heat exchanging fluid exports.
Described reaction gas entrance is arranged on cylinder body bottom, upwards flows through gas distributor, and during countercurrent flow, reactant liquor entrance is arranged on cylindrical shell top, and during following current heat exchange, reactant liquor entrance is arranged on cylindrical shell bottom.
Described gas distributor pattern is porous plate, nozzle or antipriming pipe.
The heat exchange that inventive bubble column reactor is strengthened in both sides simultaneously.Cooling or walk heat exchange element plate journey cavity to thermal medium, by junction, contact and concavo-convex plate journey housing surface, strengthen flow disturbance and make it be in turbulent flow, enhance move heat or give the thermal efficiency; Reaction system be equivalent to be in heat exchange element shell side cavity (adjacent pillow formula heat transfer plate between cavity be shell side cavity), equally due to the convex-concave surface between plate pair, strengthen flow disturbance, enhance heat exchange.
On the other hand, after gas enters reaction system by gas distributor, due to the out-of-flatness on heat exchange element surface, air pocket can be made to a certain extent broken, thereby increase liquid phase contact surface area, enhance course of reaction and heat transfer process simultaneously.
In general structure, because pillow formula heat transfer plate is separated into several passages to by whole reaction system space uniform, serves effective guide functions, make fluid well-distributing be distributed in whole space; In addition, the separation in reaction system space also largely decreases the back-mixing of liquid material, substantially increases the selective of reaction result.
Compared with prior art, the present invention has the following advantages:
One, under rational version, heat exchange is enhanced;
Contact and the rough surface peening disturbance of two side liquids, enhances heat exchange efficiency, adds the heat exchange area in unit volume, reduce the equipment volume needed for identical material treating capacity.Meanwhile, do not have contact point and pillow formula heat transfer plate effects on surface not to have spike angle point due between pillow formula heat transfer plate pair, passage is more penetrating, and gas can not be made to occur short circuit phenomenon.
Two, plate can reduce liquid dispersion to layout, and augmenting response is selective;
Because pillow formula heat transfer plate is separated into several passages to by whole reaction system space uniform, makes fluid well-distributing be distributed in whole space, largely decrease the back-mixing of liquid material, substantially increase the selective of reaction result.
Three, sheet structure parameter can flexible modulation, and accommodation is wider;
According to different working condition requirements, can flexible modulation distance between plates, plate to spacing and contact density, reach heat transfer effect in various degree.The solution-air of differential responses characteristic and heat transfer requirements can be adapted to thus, gas-solid, the reaction of the forms such as liquid-liquid.
Four, compact conformation, less scaling;
Whole heat exchange element is connected with tower body is compact, without the need to much complex interface; Because contact exists, and fluid liquid form is turbulent flow, produces boundary shear stress thus comparatively large, makes heat exchange element itself have self-cleaning function.
Accompanying drawing explanation
Fig. 1 is the front partial structurtes schematic diagram that the present invention rests the head on formula heat exchange element;
Fig. 2 is the side partial structurtes schematic diagram that the present invention rests the head on formula heat exchange element;
Fig. 3 is the arrangement schematic diagram of overall heat exchange element of the present invention;
Fig. 4 is the overall structure schematic diagram of inventive bubble column reactor;
Shown in number in the figure:
A, sheet surface, cavity between b, plate, c, solder contacts;
1. bubble tower housing, 11. reactant liquor entrances, 12. reactant liquor outlets, 13. reaction gas entrances, 14. reaction gas outlets, 15. heat exchanging fluid entrances, 16. heat exchanging fluid outlets, 2. rest the head on formula heat transfer plate pair, 21. heat exchanging fluid entrance distribution headers, 22, heat exchanging fluid entrance dispensing branch, 23. plates are to distance pieces, arm is collected in 24. heat exchanging fluid outlets, and house steward, 3. gas distributor are collected in 25. heat exchanging fluid outlets.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in figures 1-4, a kind of internal heat exchange type bubbling column reactor is by Fig. 1, and the bubble tower of the heat exchange element group in 2 and routine is ingenious to be combined into, and forms internal heat exchange type bubbling column reactor as shown in Figure 3.Described reactor comprises bubble tower, gas distributor and interior heat exchange element, and described bubble tower comprises cylindrical shell 1 and is arranged on the reactant liquor entrance 11 on cylindrical shell, reactant liquor outlet 12, reaction gas entrance 13, reaction gas outlet 14, heat exchanging fluid entrance 15, heat exchanging fluid outlet 16.Described reaction gas entrance 13 is arranged on bottom cylindrical shell 1, upwards flow through gas distributor 3, during countercurrent flow, reactant liquor entrance 11 is arranged on cylindrical shell top, and during following current heat exchange, reactant liquor entrance 11 is arranged on cylindrical shell bottom (in the present embodiment, reactant liquor entrance 11 is arranged on cylindrical shell bottom).Described gas distributor 3 is arranged on bottom bubble tower, and gas distributor pattern can be divided into porous plate, nozzle and antipriming pipe etc. according to response characteristic, and effect is that gas uniform is distributed, strengthening mass transfer, heat transfer.
Described interior heat exchange element is arranged in bubble tower and is immersed between reaction mass; Described interior heat exchange element comprise pillow formula heat transfer plate to and dispense tube, described interior heat exchange element is mainly made up of 2 cylindrical arrangements multipair pillow formula heat transfer plate, each pillow formula heat transfer plate is located distance pieces 23 by plate between 2, the pillow formula heat transfer plate of different radial plate to length can be selected to arrange to 2 according to the flexible in size of bubble tower, and the spacing adjusted between each pillow formula heat transfer plate, plate adjusts according to heat transfer requirements and allowable pressure drop value spacing and contact density.The diameter of whole interior heat exchange element is suitable with bubble tower internal diameter, is welded and fixed, is immersed in whole reaction system with tower body.Described pillow formula heat transfer plate passes through multi-point welding punching press aftershaping to 2 by two metal sheets, surrounding rolling weldering sealing, formation can carry out the parts of the plate journey cavity b of heat exchange for heat transferring medium, only respectively stay a port to connect dispense tube respectively at two ends, adjacent pillow formula heat transfer plate between 2 and and bubble tower housing 1 between space define the gas liquid reaction medium contact flowing space (shell side cavity).Because spot welding makes pillow formula heat transfer plate evenly protruding to 2 surface plane parts, in sheet surface a, outside all defines contact, and contact density, according to climatic conditioning, carries out disturbance to fluid.Described pillow formula heat transfer plate is evenly provided with multiple solder contacts c on 2, and multiple solder contacts c is crisscross arranged, and contact density is 200 ~ 5000/m
2, contact spacing is 20 ~ 100mm.
Described dispense tube comprises distribution header and dispensing branch, and described dispensing branch connects each pillow formula heat transfer plate respectively to the port at two ends, then connects distribution header in the form of annular discs, and distribution header connects heat transferring medium gateway.As indicated at 3, dispense tube comprises heat exchanging fluid entrance distribution header 21, heat exchanging fluid entrance dispensing branch 22, and arm 24 is collected in heat exchanging fluid outlet, and house steward 25 is collected in heat exchanging fluid outlet.Heat transferring medium flows into from heat exchanging fluid entrance 15, heat exchanging fluid entrance dispensing branch 22 is assigned to through heat exchanging fluid entrance distribution header 21, flow into each pillow formula heat transfer plate more respectively in the plate journey cavity of 2, after heat exchange, collect arm 24 from heat exchanging fluid outlet to collect, conflux to heat exchanging fluid outlet and collect house steward 25, then flow out from heat exchanging fluid outlet 16.
Reactant liquor at the bottom of tower bottom reactant liquor entrance 11 enter reaction compartment, reacting gas flows into from reaction gas entrance 13, after gas distributor 3 is shunted, enter reaction compartment and reactant liquor reacts, after completing reaction, liquid exports 12 by reactant liquor and discharges, and gas exports 14 discharges by tower top reaction gas.
Be described for exothermic reaction, the heat that reaction produces is taken away by heat convection by the cooling medium of limp journey, as requested can byproduct steam, cooling medium enters bubble tower heat exchanging fluid entrance distribution header 21 by heat exchanging fluid entrance 15, be assigned to equably between plate through heat exchanging fluid entrance dispensing branch 22, flow process is from lower to upper heat transfer process; Fluid (liquid or gas-liquid mixture) after heat exchange is first collected from each plate collecting arm 24 from heat exchanging fluid outlet, conflux to heat exchanging fluid outlet and collect house steward 25, then flow out bubbling column reactor (gas-liquid mixture carries out gas-liquid separation after going out tower again) from heat exchanging fluid outlet 16.
According to reaction and heat-exchanging state requirement, can the structural parameters of flexible modulation shell side (i.e. reaction compartment) and plate journey.For reaction side, the size of reaction compartment can be adjusted arbitrarily by the distance between adjustable plate pair, and plate controls distance pieces 23 according to plate spacing; For heat exchange side, adjustable plate spacing plate journey space can be adjusted; What another was adjustable is contact density, and as shown in fig. 2-c, contact density is relevant with the effect of augmentation of heat transfer.Several adjustable parameter carries out Reasonable adjustment according to thermal transmission requirement, allowable pressure drop and medium handling capacity, and obtaining one has project organization parameter most.
Claims (8)
1. an internal heat exchange type bubbling column reactor, it is characterized in that, this reactor comprises bubble tower, gas distributor and interior heat exchange element, and described gas distributor is arranged on bottom bubble tower, and described interior heat exchange element is arranged in bubble tower and is immersed between reaction mass; Described interior heat exchange element comprise pillow formula heat transfer plate to and dispense tube, described pillow formula heat transfer plate is to being formed the parts that can carry out the plate journey cavity of heat exchange for heat transferring medium by multi-point welding by two pieces of metallic plates, and its two ends are provided with port and connect dispense tube respectively.
2. a kind of internal heat exchange type bubbling column reactor according to claim 1, it is characterized in that, described interior heat exchange element is made up of cylindrical arrangement multipair pillow formula heat transfer plate, each pillow formula heat transfer plate between by plate, distance pieces is located, the diameter of whole interior heat exchange element is suitable with bubble tower internal diameter, be welded and fixed with tower body, be immersed in whole reaction system.
3. a kind of internal heat exchange type bubbling column reactor according to claim 1, is characterized in that, described pillow formula heat transfer plate passes through multi-point welding punching press aftershaping to by two metal sheets, and surrounding rolling weldering sealing, only respectively stays a port at two ends.
4. a kind of internal heat exchange type bubbling column reactor according to claim 1 or 2 or 3, it is characterized in that, described dispense tube comprises distribution header and dispensing branch, described dispensing branch connects each pillow formula heat transfer plate respectively to the port at two ends, then connect distribution header in the form of annular discs, distribution header connects heat transferring medium gateway.
5. a kind of internal heat exchange type bubbling column reactor according to claim 1, is characterized in that, described pillow formula heat transfer plate is evenly provided with multiple solder contacts to upper, and multiple solder contacts is crisscross arranged, and contact density is 1500 ~ 5000/m
2, contact spacing is 20 ~ 100mm.
6. a kind of internal heat exchange type bubbling column reactor according to claim 1, is characterized in that, described bubble tower comprises cylindrical shell and is arranged on the reactant liquor entrance on cylindrical shell, reactant liquor exports, reaction gas entrance, and reaction gas exports, heat exchanging fluid entrance, heat exchanging fluid exports.
7. a kind of internal heat exchange type bubbling column reactor according to claim 6, it is characterized in that, described reaction gas entrance is arranged on cylinder body bottom, upwards flow through gas distributor, during countercurrent flow, reactant liquor entrance is arranged on cylindrical shell top, and during following current heat exchange, reactant liquor entrance is arranged on cylindrical shell bottom.
8. a kind of internal heat exchange type bubbling column reactor according to claim 1, is characterized in that, described gas distributor pattern is porous plate, nozzle or antipriming pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499952.2A CN104587943A (en) | 2014-09-25 | 2014-09-25 | Inner heat exchange-type bubble column reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499952.2A CN104587943A (en) | 2014-09-25 | 2014-09-25 | Inner heat exchange-type bubble column reactor |
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| Publication Number | Publication Date |
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| CN104587943A true CN104587943A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410499952.2A Pending CN104587943A (en) | 2014-09-25 | 2014-09-25 | Inner heat exchange-type bubble column reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959084A (en) * | 2015-07-14 | 2015-10-07 | 德艾柯工程技术（上海）有限公司 | Novel slurry bed reactor |
| CN113477187A (en) * | 2021-07-21 | 2021-10-08 | 甘肃蓝科石化高新装备股份有限公司 | Plate-type axial reactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132143Y (en) * | 1992-03-14 | 1993-05-05 | 方心树 | Plate-shell type heat exchanger |
| CN101480595A (en) * | 2009-01-08 | 2009-07-15 | 浙江大学 | Slurry bubble column reactor with needle type fin column tube bundle |
| CN204170730U (en) * | 2014-09-25 | 2015-02-25 | 德艾柯工程技术（上海）有限公司 | A kind of internal heat exchange type bubbling column reactor |
-
2014
- 2014-09-25 CN CN201410499952.2A patent/CN104587943A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132143Y (en) * | 1992-03-14 | 1993-05-05 | 方心树 | Plate-shell type heat exchanger |
| CN101480595A (en) * | 2009-01-08 | 2009-07-15 | 浙江大学 | Slurry bubble column reactor with needle type fin column tube bundle |
| CN204170730U (en) * | 2014-09-25 | 2015-02-25 | 德艾柯工程技术（上海）有限公司 | A kind of internal heat exchange type bubbling column reactor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959084A (en) * | 2015-07-14 | 2015-10-07 | 德艾柯工程技术（上海）有限公司 | Novel slurry bed reactor |
| CN104959084B (en) * | 2015-07-14 | 2018-08-10 | 德艾柯工程技术（上海）有限公司 | A kind of paste state bed reactor |
| CN113477187A (en) * | 2021-07-21 | 2021-10-08 | 甘肃蓝科石化高新装备股份有限公司 | Plate-type axial reactor |
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Application publication date: 20150506 |