CN101843984A - Forced circulating reboiler - Google Patents
Forced circulating reboiler Download PDFInfo
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- CN101843984A CN101843984A CN 201010153945 CN201010153945A CN101843984A CN 101843984 A CN101843984 A CN 101843984A CN 201010153945 CN201010153945 CN 201010153945 CN 201010153945 A CN201010153945 A CN 201010153945A CN 101843984 A CN101843984 A CN 101843984A
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- reboiler
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Abstract
The invention discloses a forced circulating reboiler. The top and bottom of a cylinder (9) are respectively connected with upper and lower end sockets (10 and 11) to form a reboiler body; the inner wall of the cylinder (9) is respectively connected with upper and lower annular plates (8 and 7); central ring holes of the upper and lower annular plates (8 and 7) are connected with a cylindrical plate to form a guide cylinder (4); a heat exchange tube (6) is connected between the upper and lower annular plates (8 and 7); a push type agitating device (3) is arranged in the guide cylinder (4) and connected with an agitating transmission device (1) positioned outside the reboiler body; the upper part of the wall of the cylinder (9) is provided with a liquid outlet (13); and the top of the upper end socket (10) is provided with a gas phase outlet (14) and a liquid inlet (12). The forced circulating of materials is realized by using the push type agitating device; not all components need to be in a boiling state and the liquid height in the reboiler is reduced so as to reduce the operating temperature in the reboiler and shorten the retention time of the materials; and the reboiler is particularly suitable for the separation of the materials with large difference between boiling points, high thermal sensitivity and toxicity.
Description
Technical field
The invention belongs to chemical industry equipment and make field and chemical process flow field, relate in particular to a kind of forced circulating reboiler.
Background technology
(evaporation) device that boils again is important basic chemical industry equipment, is widely used in technical process such as rectifying, evaporation.Have from formal classification: Vertical Thermosyphon Reboiler; Horizontal reboiler; Falling liquid film, rise the membrane type reboiler; Forced circulating reboiler; Scraper-type reboiler etc.
Vertical Thermosyphon Reboiler or static evaporator rely on the fluid density contrast of managing interior (in the evaporimeter) temperature difference and producing to form the circulation of fluid.For the big material of viscosity, Vertical Thermosyphon Reboiler or evaporimeter are less by the flow velocity that density contrast produces, thereby convective heat-transfer coefficient is little.In order to strengthen heat-transfer effect, adopt pump to carry out forced circulation traditionally with enhancing heat transfer.For the high material of fusing point, the insulation of pump is difficult problem, need clean pump during production line start-stop car, otherwise easily cause the obstruction of pump, and new material is brought in the cleaning of pump in system, influence the cleaning of production system.For poisonous material, the seal leakage that solves pump is a difficult problem.
Need to use solvent in many chemical process, concerning fine chemical product, fusing point, the boiling point of product are higher, the boiling point of product boiling point and solvent differs bigger, high boiling component is liquid condition in the thermosiphon reboiler tube side, when liquid level in the reboiler was lower than the gas outlet, top, high boiling component can't effectively circulate in reboiler, caused stopping up in the siphon pipe.In order to guarantee the circulation of tube side material, in thermosiphon reboiler, need to improve the liquid level of tube side, make the interior liquid level of reboiler reach the position of gas outlet, top.Owing to improve the height of materials in the reboiler, increased the differential static pressure in the reboiler, relatively improved the operating temperature of reboiler, this is unallowed in the production process of heat sensitive material.
The manufacturing of falling film type reboiler requires high, and distributor needs fine finishining.Most of organic object at high temperature has coking phenomenon, and the coking meeting influences the distribution effect of falling liquid film reboiler, and then influences the liquid film forming, lowers efficiency.Simultaneously, the falling liquid film reboiler needs pump to realize the circulation of material.The shortcoming of pump is conspicuous, sets forth at a joint.
Summary of the invention
Purpose of the present invention just is to overcome the shortcoming and defect of above-mentioned traditional structure reboiler, and a kind of forced circulating reboiler is provided, and is rational in infrastructure, simple to operate, and safety and stability is specially adapted to that boiling point differs big, thermal sensitivity is high, the separation of poisonous material.
Technical solution of the present invention is: the tube top and the tube end at cylinder connect low head formation reboiler body respectively, on the inwall of cylinder, connect upper annular plate and lower annular plate respectively, the coupling tunnel plate forms guide shell on the center ring hole of upper annular plate and lower annular plate, between the ring flat-plate of upper annular plate and lower annular plate, connect heat exchanger tube, pusher agitating device is installed in guide shell, the agitator arm of pusher agitating device is positioned at the guide shell bottom, pusher agitating device is connected on this external stirring transmission device of reboiler, stirring transmission device is installed on the reboiler body by flange, liquid outlet opening is established on barrel top at cylinder, establishes gaseous phase outlet and liquid-inlet at the top of upper cover.
Wherein, on the inwall of the tube plate of guide shell baffle plate is installed, baffle plate prevents liquid whole rotation in guide shell.
Wherein, the installation site of liquid outlet opening as far as possible near upper annular plate, and guarantees that the liquid level of upper annular plate top is not less than 100mm under the condition that guarantees installation and removal requirement.
Wherein, between upper annular plate and the upper cover certain altitude is arranged, guarantee the vapor-liquid separation space, this highly is not less than 200mm.
Wherein, on the barrel of cylinder, establish the outlet of heat medium import and heat medium, between heat medium import and heat exchanger tube, impingement baffle is installed.
Wherein, charging aperture has the extension in reboiler, guarantees that charging directly enters guide shell, prevents to form short circuit between charging aperture and the liquid outlet opening.
Wherein, on the wall of upper cover, establish the visor mouth, can have a plurality of visor mouths as the case may be.
Wherein, equipment can have a plurality of standby mouthful as the case may be with mouth on the wall of upper cover.
Wherein, establish evacuation port on the barrel of cylinder, the gas discharging of the initial stage shell side that is used to drive reduces the transporting resistance of heat medium, and evacuation port is guaranteeing that installation and removal make things convenient under the situation as far as possible near upper annular plate.
Wherein, establish drain in the bottom of cylinder, discharging heat medium or cleaning sullage when being used for parking or cleaning, drain is guaranteeing that installation and removal make things convenient for the close lower annular plate of trying one's best under the situation.
Wherein, establish drain, when being used for the start-stop car, put the material and the inner cleaning of reboiler of clean reboiler inside in the bottom of low head.
Wherein,, heat tracing pipe is installed, is prevented material when being used for the start-stop car, establish the heat tracing pipe heat medium on the heat tracing pipe and import and export in the bottom crystallization in the outside of low head at the high material of freezing point.
Wherein, when heat tracing pipe is the wholecircle pipe, between heat tracing pipe and low head, fills heat-conducting daub and strengthen companion's thermal effect.
Wherein, on the barrel top of cylinder or upper cover, establish the thermometer installing port.
Wherein, unaffected for the push-in stroke that keeps agitator arm, the actual internal area S1 of heat exchanger tube equals or is slightly larger than the sectional area S2 of guide shell, i.e. S1=1-1.2S2, the diameter of agitator arm be draft tube diameter 0.3-0.7 doubly.
Wherein, the position of agitator arm is in the bottom of guide shell, and the position of agitator arm is not higher than 1/4th of guide shell height.
During work, the material that comes at the bottom of the rectifying Tata flows in the reboiler from the charging aperture of reboiler, and under the driving of pusher agitator arm, material is realized circulation in guide shell and heat exchanger tube, and gaseous phase materials is arrived in the rectifying column by the gaseous phase outlet of reboiler.
Forced circulating reboiler of the present invention uses the pusher whole forced circulation that realize material in the reboiler that stir, each component of material need not all be in fluidized state in the reboiler, reduce the liquid height in the reboiler, relatively reduce the operating temperature in the reboiler, shorten the time of staying of material, overcome the insulation of pump circulation and reveal a difficult problem.
Description of drawings
Fig. 1 is a structure chart of the present invention.
Fig. 2 is the scheme of installation of reboiler of the present invention and rectifying column.
Among the figure: 1 stirs transmission device, 2 flanges, 3 pusher agitating devices, 4 guide shells, 5 baffle plates, 6 heat exchanger tubes, 7 lower annular plates, 8 upper annular plates, 9 cylinders, 10 upper covers, 11 low heads, 12 charging apertures, 13 liquid outlet openings, 14 gaseous phase outlets, 15 heat medium imports, the outlet of 16 heat mediums, 17 drains, 18 visor mouths, 19 standby mouthfuls, 20 evacuation ports, 21 heat tracing pipes, 22 thermometer installing ports, 23 drains.
The specific embodiment
As shown in Figure 1, the tube top and the tube end at cylinder 9 connect low head 10 respectively, 11 constitute the reboiler body, on the inwall of cylinder 9, connect upper annular plate 8 and lower annular plate 7 respectively, the coupling tunnel plate forms guide shell 4 on the center ring hole of upper annular plate 8 and lower annular plate 7, between the ring flat-plate of upper annular plate 8 and lower annular plate 7, connect heat exchanger tube 6, pusher agitating device 3 is installed in guide shell 4, the agitator arm of pusher agitating device 3 is positioned at guide shell 4 bottoms, pusher agitating device 3 is connected on this external stirring transmission device 1 of reboiler, stirring transmission device 1 is installed on the reboiler body by flange 2, liquid outlet opening 13 is established on barrel top at cylinder 9, establishes gaseous phase outlet 14 and liquid-inlet 12 at the top of upper cover 10.
Wherein, on the inwall of the tube plate of guide shell 4 baffle plate 5 is installed, baffle plate prevents liquid whole rotation in guide shell.
Wherein, the installation site of liquid outlet opening 13 is as far as possible close upper annular plate 8 under the condition that guarantees installation and removal requirement, and guarantees that the liquid level of upper annular plate top is not less than 100mm.
Wherein, between upper annular plate 8 and the upper cover 10 certain altitude is arranged, guarantee the vapor-liquid separation space, this highly is not less than 200mm.
Wherein, on the barrel of cylinder 9, establish heat medium import 15 and heat medium outlet 16, between heat medium import 15 and heat exchanger tube 6, impingement baffle is installed.
Wherein, charging aperture 12 has the extension in reboiler, guarantees that charging directly enters guide shell, prevents to form short circuit between charging aperture 12 and the liquid outlet opening 13.
Wherein, on the wall of upper cover 10, establish visor mouth 18, can have a plurality of visor mouths as the case may be.
Wherein, equipment can have a plurality of standby mouthful as the case may be with mouth 19 on the wall of upper cover 10.
Wherein, establish evacuation port 20 on the barrel of cylinder 9, the gas discharging of the initial stage shell side that is used to drive reduces the transporting resistance of heat medium, and evacuation port 20 is guaranteeing that installation and removal make things convenient under the situation as far as possible near upper annular plate 8.
Wherein, establish drain 17 in the bottom of cylinder 9, discharging heat medium or cleaning sullage when being used for parking or cleaning, drain 17 is guaranteeing that installation and removal make things convenient for the close lower annular plate 7 of trying one's best under the situation.
Wherein,, establish drain 23, when being used for the start-stop car, put the material and the inner cleaning of reboiler of clean reboiler inside in the bottom of low head.
Wherein,, heat tracing pipe 21 is installed, is prevented material when being used for the start-stop car, establish the heat tracing pipe heat medium on the heat tracing pipe 21 and import and export in the bottom crystallization in the outside of low head 11 at the high material of freezing point.
Wherein, when heat tracing pipe is the wholecircle pipe, between heat tracing pipe 21 and low head 11, fills heat-conducting daub and strengthen companion's thermal effect.
Wherein, on the top of the barrel of cylinder 9 or upper cover 10, establish thermometer installing port 22.
Wherein, unaffected for the push-in stroke that keeps agitator arm, the actual internal area S1 of heat exchanger tube equals or is slightly larger than the sectional area S2 of guide shell, i.e. S1=1-1.2S2, the diameter of agitator arm be draft tube diameter 0.3-0.7 doubly.
Wherein, the position of agitator arm is in the bottom of guide shell, and the position of agitator arm is not higher than 1/4th of guide shell height.
As shown in Figure 2, during work, the material that comes at the bottom of the rectifying Tata flows in the reboiler from the charging aperture of reboiler, under the driving of pusher agitator arm, material is realized circulation in guide shell and heat exchanger tube, gaseous phase materials is arrived in the rectifying column by the gaseous phase outlet of reboiler.
Should be understood that schematic diagram among the present invention is the explanation for the present invention is made, but not limit the scope of the invention by any way that engineers and technicians also belong to extension of the present invention to the adjustment of concrete equipment size and nozzle position among the present invention.
Claims (10)
1. forced circulating reboiler, it is characterized in that: the tube top and the tube end at cylinder (9) connect low head (10 respectively, 11) constitute the reboiler body, on the inwall of cylinder (9), connect upper annular plate (8) and lower annular plate (7) respectively, the coupling tunnel plate forms guide shell (4) on the center ring hole of upper annular plate (8) and lower annular plate (7), between the ring flat-plate of upper annular plate (8) and lower annular plate (7), connect heat exchanger tube (6), pusher agitating device (3) is installed in guide shell (4), the agitator arm of pusher agitating device (3) is positioned at guide shell (4) bottom, pusher agitating device (3) is connected on this external stirring transmission device (1) of reboiler, stirring transmission device (1) is installed on the reboiler body by flange (2), establish liquid outlet opening (13) on the barrel top of cylinder (9), establish gaseous phase outlet (14) and liquid-inlet (12) at the top of upper cover (10).
2. a kind of forced circulating reboiler according to claim 1 is characterized in that: wherein, on the inwall of the tube plate of guide shell (4) baffle plate (5) is installed, baffle plate prevents liquid whole rotation in guide shell.
3. a kind of forced circulating reboiler according to claim 1, it is characterized in that: wherein, the installation site of liquid outlet opening (13) is as far as possible close upper annular plate (8) under the condition that guarantees installation and removal requirement, and guarantees that the liquid level of upper annular plate top is not less than 100mm.
4. a kind of forced circulating reboiler according to claim 1 is characterized in that: wherein, between upper annular plate (8) and the upper cover (10) certain altitude is arranged, guarantee the vapor-liquid separation space, this highly is not less than 200mm.
5. a kind of forced circulating reboiler according to claim 1, it is characterized in that: wherein, on the barrel of cylinder (9), establish heat medium import (15) and heat medium outlet (16), between heat medium import (15) and heat exchanger tube (6), impingement baffle is installed.
6. a kind of forced circulating reboiler according to claim 1 is characterized in that: wherein, charging aperture (12) has the extension in reboiler, guarantees that charging directly enters guide shell, prevents to form short circuit between charging aperture (12) and the liquid outlet opening (13).
7. a kind of forced circulating reboiler according to claim 1 is characterized in that: wherein, establish visor mouth (18) on the wall of upper cover 10; Wherein, equipment can have a plurality of standby mouthful as the case may be with mouthful (19) on the wall of upper cover (10); Wherein, establish evacuation port (20) on the barrel of cylinder (9), the gas discharging of the initial stage shell side that is used to drive reduces the transporting resistance of heat medium, and evacuation port (20) is guaranteeing that installation and removal make things convenient under the situation as far as possible near upper annular plate (8); Wherein, establish drain (17) in the bottom of cylinder (9), discharging heat medium or cleaning sullage when being used for parking or cleaning, drain (17) is guaranteeing that installation and removal make things convenient for the close lower annular plate (7) of trying one's best under the situation; Wherein, on the top of the barrel of cylinder (9) or go up on public attention (10) and establish thermometer installing port (22); Wherein, establish drain (23) in the bottom of low head, when being used for the start-stop car, put the material and the inner cleaning of reboiler of clean reboiler inside.
8. a kind of forced circulating reboiler according to claim 1, it is characterized in that: wherein,, heat tracing pipe (21) is installed in the outside of low head (11) at the high material of freezing point, prevent material when being used for the start-stop car in the bottom crystallization, establish the heat tracing pipe heat medium on the heat tracing pipe (21) and import and export; Wherein, when heat tracing pipe is the wholecircle pipe, between heat tracing pipe (21) and low head (11), fills heat-conducting daub and strengthen companion's thermal effect.
9. a kind of forced circulating reboiler according to claim 1, it is characterized in that: wherein, for the push-in stroke that keeps agitator arm unaffected, the actual internal area S 1 of heat exchanger tube (6) equals or is slightly larger than the sectional area S2 of guide shell (4), be S 1=1-1.2S2, the diameter of agitator arm is 0.3-0.7 a times of draft tube diameter.
10. a kind of forced circulating reboiler according to claim 1 is characterized in that: wherein, the position of the agitator arm of pusher agitating device (3) is in the bottom of guide shell (4), and the position of agitator arm is not higher than 1/4th of guide shell height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010153945 CN101843984A (en) | 2010-04-15 | 2010-04-15 | Forced circulating reboiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010153945 CN101843984A (en) | 2010-04-15 | 2010-04-15 | Forced circulating reboiler |
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| Publication Number | Publication Date |
|---|---|
| CN101843984A true CN101843984A (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010153945 Pending CN101843984A (en) | 2010-04-15 | 2010-04-15 | Forced circulating reboiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617692A (en) * | 2015-12-25 | 2016-06-01 | 苏州林信源自动化科技有限公司 | Tube box mechanism |
| CN107982952A (en) * | 2017-11-20 | 2018-05-04 | 沈阳工程学院 | A kind of reboiler design method |
| CN109589636A (en) * | 2019-01-24 | 2019-04-09 | 胡超 | A kind of stable reboiler of boiling process |
| CN113260642A (en) * | 2018-12-27 | 2021-08-13 | Sabic环球技术有限责任公司 | Process for preparing polyethylene |
| CN114405028A (en) * | 2021-12-31 | 2022-04-29 | 无锡殷达尼龙有限公司 | Integrated internal circulation evaporator for recycling ammoniated products and recycling method of ammoniated products |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459323Y (en) * | 2000-12-29 | 2001-11-14 | 梁奕华 | Indirect heat conduction type reboiling apparatus |
| CN2562831Y (en) * | 2002-06-28 | 2003-07-30 | 丹阳市联大化工有限公司 | Rectifying device |
-
2010
- 2010-04-15 CN CN 201010153945 patent/CN101843984A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459323Y (en) * | 2000-12-29 | 2001-11-14 | 梁奕华 | Indirect heat conduction type reboiling apparatus |
| CN2562831Y (en) * | 2002-06-28 | 2003-07-30 | 丹阳市联大化工有限公司 | Rectifying device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617692A (en) * | 2015-12-25 | 2016-06-01 | 苏州林信源自动化科技有限公司 | Tube box mechanism |
| CN107982952A (en) * | 2017-11-20 | 2018-05-04 | 沈阳工程学院 | A kind of reboiler design method |
| CN113260642A (en) * | 2018-12-27 | 2021-08-13 | Sabic环球技术有限责任公司 | Process for preparing polyethylene |
| CN113260642B (en) * | 2018-12-27 | 2023-03-14 | Sabic环球技术有限责任公司 | Process for preparing polyethylene |
| CN109589636A (en) * | 2019-01-24 | 2019-04-09 | 胡超 | A kind of stable reboiler of boiling process |
| CN114405028A (en) * | 2021-12-31 | 2022-04-29 | 无锡殷达尼龙有限公司 | Integrated internal circulation evaporator for recycling ammoniated products and recycling method of ammoniated products |
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Open date: 20100929 |