CN104039408B - Vaporising device, vapo(u)rization system and method for evaporating - Google Patents
Vaporising device, vapo(u)rization system and method for evaporating Download PDFInfo
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- CN104039408B CN104039408B CN201280066442.5A CN201280066442A CN104039408B CN 104039408 B CN104039408 B CN 104039408B CN 201280066442 A CN201280066442 A CN 201280066442A CN 104039408 B CN104039408 B CN 104039408B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0064—Feeding of liquid into an evaporator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/065—Evaporators with vertical tubes by film evaporating
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Abstract
The invention provides a kind of vaporising device, it comprises multiple heat-transfer pipe, multiple heat-transfer pipe is vacated interval mutually and the upper tube sheet supported, with the first dispersion plate of top being arranged at upper tube sheet, first dispersion plate is provided with the liquid-through hole of more than 2 formed in the mode passed through by material liquid and the passage of more than 2 formed in the mode passed through by gas, observe from the bearing of trend of multiple heat-transfer pipe, described multiple liquid-through hole is formed at the position overlapping with the region not arranging heat-transfer pipe of upper tube sheet, and described multiple passage is formed at the position overlapping with the region being provided with multiple heat-transfer pipe, multiple heat-transfer pipe has the protuberance protruded above upper tube sheet.By the present invention, provide and can suppress the blocking of heat-transfer pipe and make the vaporising device that the evaporation of material liquid is carried out smoothly.
Description
Technical field
The present invention relates to vaporising device, vapo(u)rization system and method for evaporating.
Its content, based on January 12nd, 2012, in the Japanese Patent Application 2012-004130 CLAIM OF PRIORITY of Japanese publication, is incorporated herein by the application.
Background technology
The vaporising device evaporated as making material liquid, the vaporising device recorded in known patent document 1.The vaporising device of patent document 1 is the liquid film type heat exchanger under the vertical current with multiple heat-transfer pipe.This vaporising device is formed in such a way: material liquid flow into the inside of multiple heat-transfer pipe, under the state that the internal face of described multiple heat-transfer pipe forms the film of material liquid, material liquid is evaporated described multiple heat-transfer pipe heating by thermal medium.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2002-284752 publication
Summary of the invention
Invent problem to be solved
In the vaporising device of patent document 1, in order to suppress the residue of the internal face retained material liquid at multiple heat-transfer pipe, and evaporate described material liquid under the state defining the film of material liquid at the internal face of multiple heat-transfer pipe.In this process material liquid is supplied in multiple heat-transfer pipe together with solvent, uses gas as a medium part.By material liquid and gas and stream is supplied in the liquid film type heat exchanger under vertical current.In the case, the thickness of the film of the material liquid of the internal face of multiple heat-transfer pipe changes according to the configuration of the supply unit of material liquid and gas.If the lower thickness of the film of material liquid, then by the evaporation of described material liquid, the internal face of heat-transfer pipe exposes sometimes.If internal face exposes, likely the described internal face retained material liquid exposed residue and cause the blocking of heat-transfer pipe.
The present invention completes in view of the foregoing, its object is to provide can pass through to form good flowing down liquid film and suppress the blocking of heat-transfer pipe and make vaporising device, vapo(u)rization system and the method for evaporating that the evaporation of material liquid is carried out smoothly.
For solving the method for problem
In order to achieve the above object, a mode of vaporising device of the present invention is characterised in that, comprise: multiple heat-transfer pipe, described multiple heat-transfer pipe is vacated interval mutually and the tube sheet supported, with the first dispersion plate of top being arranged at described tube sheet, at above-mentioned first dispersion plate, observe from the bearing of trend of described multiple heat-transfer pipe, the multiple liquid-through holes passed through by material liquid are formed at the position overlapping with the region not arranging described heat-transfer pipe of described tube sheet, and the multiple passages passed through by gas are formed at the position overlapping with described multiple heat-transfer pipe, described multiple heat-transfer pipe has the protuberance protruded above described tube sheet.
The feature of a mode of the present invention is, is provided with the nozzle protruded towards described tube sheet side from this in the part defining described liquid-through hole in the face of the tube sheet side of described first dispersion plate.
The feature of a mode of the present invention is, has towards described first dispersion plate and makes the inflow part that described material liquid and described gas flow into.
The feature of a mode of the present invention is, the dispersion plate of more than 1 is provided with between described first dispersion plate and described inflow part, the multiple liquid-through holes passed through by the described material liquid coming from described inflow part are provided with at described dispersion plate, observe from the bearing of trend of described multiple heat-transfer pipe, the multiple liquid-through holes being at least configured at the described dispersion plate directly over described first dispersion plate are configured in the nonoverlapping position of multiple passages with described first dispersion plate.
Preferably the dispersion plate of described more than 1 is less than 4.
The feature of a mode of the present invention is, there is the incorporating section of the described tube sheet of storage and described first dispersion plate, the second dispersion plate is provided with between described inflow part and described first dispersion plate, multiple liquid-through holes that the material liquid that makes to come from described inflow part flows into towards the described liquid-through hole being formed at described first dispersion plate are provided with at described second dispersion plate, with multiple breather pipes that the gas coming from described inflow part is passed through, gap is defined between the peripheral part and the internal face of described incorporating section of described second dispersion plate, observe from the bearing of trend of described multiple heat-transfer pipe, multiple breather pipes of described second dispersion plate are configured to circular concentric, multiple breather pipes of described second dispersion plate have notch part in the central part side of described inflow part side and described second dispersion plate.
The feature of a mode of the present invention is, has the transfer mechanism that the material liquid flowed out from described multiple heat-transfer pipe is transferred to described inflow part.
The feature of a mode of the present invention is, defines ditch in the front end of described protuberance.
The feature of a mode of the present invention is, observes from the bearing of trend of described heat-transfer pipe, and the area of described heat-transfer pipe is the area of more than the area of the passage of described first dispersion plate.
The feature of a mode of the present invention is, observes from the bearing of trend of this heat-transfer pipe, and the center of described heat-transfer pipe is consistent with the center of the passage of described first dispersion plate.
The feature of a mode of the present invention is, described material liquid comprises cyclohexanone oxime.
The feature of a mode of vapo(u)rization system of the present invention is, it has vaporising device, pump that a part for the residue of the unstrpped gas generated by described vaporising device is circulated in described vaporising device, the decompression distillation device of a remaining part distilling described residue and condensation be by the condenser of the raw material of described decompression distillation device distillation removing.
The feature of a mode of method of evaporating of the present invention is, described vaporising device is used to make described material liquid heating evaporation, distill obtaining the residue after unstrpped gas under the pressure lower than pressure during heating evaporation, and the unstrpped gas condensation of removing will be distilled by distilling, reclaim the material liquid comprised in described residue thus.
The feature of a mode of method of evaporating of the present invention is, its method of evaporating of the mixed liquor of solvent being evaporating cyclohexanone oxime and being diluted, described solvent is alcohol, the mode of the state at least soaked by cyclohexanone oxime is become with the whole evaporating surface in described vaporising device, make described mixed liquor under the pressure of below 1060torr and evaporate under the condition that it be the per unit length (m) of evaporating surface lower end is more than 170kg/ hour that the cyclohexanone oxime of evaporating surface lower end in described vaporising device flows down liquid measure, with regard to described distillation, distill under the decompression of 1.4kPa ~ 10kPa.
That is, the present invention relates to following content.
(1) vaporising device, is characterized in that, comprises:
Multiple heat-transfer pipe,
The tube sheet that the mode supported so that described multiple heat-transfer pipe is vacated interval is mutually formed and
Be arranged at the first dispersion plate of the top of described tube sheet,
Described first dispersion plate is provided with the liquid-through hole of more than 2 formed in the mode passed through by material liquid and the passage of more than 2 formed in the mode passed through by gas, observe from the bearing of trend of described multiple heat-transfer pipe, described multiple liquid-through hole is formed at the position overlapping with the region not arranging described heat-transfer pipe of described tube sheet, and described multiple passage is formed at the position overlapping with the region being provided with described multiple heat-transfer pipe
Described multiple heat-transfer pipe has the protuberance formed in the mode protruded above described tube sheet.
(2) vaporising device Gen Ju (1), is characterized in that,
For described first dispersion plate, the face of the tube sheet side of described first dispersion plate is provided with nozzle,
Described nozzle from the tube sheet side of described first dispersion plate towards described tube sheet side to protrusion,
Described nozzle is arranged at the part defining described liquid-through hole in the face of the tube sheet side of described first dispersion plate.
(3) according to (1) or the vaporising device described in (2), it is characterized in that,
Also have with towards described first dispersion plate and the inflow part that formed of the mode making described material liquid and described gas flow into.
(4) vaporising device Gen Ju (3), is characterized in that,
The dispersion plate of more than 1 is provided with between described first dispersion plate and described inflow part,
The multiple liquid-through holes formed in the mode passed through by the described material liquid coming from described inflow part are provided with at the dispersion plate of described more than 1,
Observe from the bearing of trend of described multiple heat-transfer pipe, multiple liquid-through holes of the dispersion plate be at least configured at directly over described first dispersion plate in the dispersion plate of described more than 1 are configured in the position overlapping with the region not arranging multiple passage of described first dispersion plate.
(5) according to (3) or the vaporising device described in (4), it is characterized in that,
The incorporating section that the mode also having to receive described tube sheet and described first dispersion plate is formed,
The second dispersion plate is provided with between described inflow part and described first dispersion plate,
Multiple liquid-through hole that the material liquid that makes to come from described inflow part is formed towards the mode that the described liquid-through hole being formed at described first dispersion plate flows into and the multiple breather pipes formed in the mode passed through by the gas coming from described inflow part are provided with at described second dispersion plate
Gap is defined between the peripheral part and the internal face of described incorporating section of described second dispersion plate,
Observe from the bearing of trend of described multiple heat-transfer pipe, multiple breather pipes of described second dispersion plate are configured to circular concentric,
Multiple breather pipes of described second dispersion plate have notch part in the central part side of described inflow part side and described second dispersion plate.
(6) according to the vaporising device described in any one in (3) ~ (5), it is characterized in that,
Also there is the transfer mechanism that the material liquid flowed out from described multiple heat-transfer pipe is formed to the mode that described inflow part is transferred.
(7) according to the vaporising device described in any one in (1) ~ (6), it is characterized in that,
Ditch is defined in the front end of described protuberance.
(8) according to the vaporising device described in any one in (1) ~ (7), it is characterized in that,
Observe from the bearing of trend of described heat-transfer pipe, the area of the heat-transfer pipe in the heat-transfer pipe of described more than 2 is the area of more than the area of the passage of described first dispersion plate be arranged at directly over it.
(9) according to the vaporising device described in any one in (1) ~ (8), it is characterized in that,
Observe from the bearing of trend of described heat-transfer pipe, the center of described heat-transfer pipe is consistent with the center of the passage of described first dispersion plate be arranged at directly over it.
(10) according to the vaporising device described in any one in (1) ~ (9), it is characterized in that,
Described material liquid comprises cyclohexanone oxime.
(11) vapo(u)rization system, is characterized in that, it has:
The vaporising device described in any one in (1) ~ (10),
With the pump that the mode that a part for the residue of the unstrpped gas generated by described vaporising device is circulated in described vaporising device is formed,
The decompression distillation device formed in the mode of the remainder distilling described residue and
With the condenser that condensation is consisted of the mode of the raw material of described decompression distillation device distillation removing.
(12) method of evaporating, is characterized in that,
The vaporising device described in any one in (1) ~ (10) is used to make described material liquid heating evaporation, residue residual after obtaining unstrpped gas is distilled under the pressure lower than pressure during described heating evaporation, and the unstrpped gas condensation of removing will be distilled by distilling, reclaim the material liquid comprised in described residue thus.
(13) method of evaporating Gen Ju (12), is characterized in that,
The mixed liquor of solvent that described material liquid is cyclohexanone oxime and is diluted, described solvent is alcohol, the mode of the state at least soaked by cyclohexanone oxime is become with the whole evaporating surface in described vaporising device, make described mixed liquor under the pressure of below 1060torr and the cyclohexanone oxime of evaporating surface lower end in described vaporising device flows down liquid measure is that the per unit length 1m of evaporating surface lower end evaporates under the condition of more than 170kg/ hour, described distillation is carried out under the decompression of 1.4kPa ~ 10kPa.
Invention effect
According to a mode of the present invention, following vaporising device, vapo(u)rization system and method for evaporating can be provided: when utilizing the liquid film type heat exchanger under vertical current to evaporate material liquid and gas, can by forming good flowing down liquid film and suppress the blocking of heat-transfer pipe and make the evaporation of material liquid carry out smoothly.
Accompanying drawing explanation
Fig. 1 is the vaporising device schematic diagram representing the 1st embodiment of the present invention.
Fig. 2 is the schematic diagram of the configuration status of multiple passages in the first dispersion plate of the vaporising device representing the 1st embodiment of the present invention.
Fig. 3 is the schematic diagram of the vaporising device representing the 2nd embodiment of the present invention.
Fig. 4 A is the schematic diagram of the configuration status of multiple breather pipes in the second dispersion plate of the vaporising device representing the 2nd embodiment of the present invention.
Fig. 4 B is the schematic diagram of the configuration status of more than 2 breather pipes in the second dispersion plate of the vaporising device representing the 2nd embodiment of the present invention.
Fig. 5 A is the schematic diagram of the variation of the protuberance representing heat-transfer pipe.
Fig. 5 B is the schematic diagram of the variation of the protuberance representing heat-transfer pipe.
Fig. 5 C is the schematic diagram of the variation of the protuberance representing heat-transfer pipe.
Fig. 6 is the schematic diagram of the example representing vapo(u)rization system.
Detailed description of the invention
With reference to the accompanying drawings embodiments of the present invention are described, but the present invention is not defined in following embodiment.
In following whole accompanying drawing, suitably change the size, ratio etc. of each inscape for ease of observing accompanying drawing.In addition, for the symbol that identical or corresponding element annotation is identical in the following description with accompanying drawing, and the repetitive description thereof will be omitted.
(the 1st embodiment)
Fig. 1 is the longitudinal section of the vaporising device 1 representing the 1st embodiment of the present invention.
As shown in Figure 1, vaporising device 1 to comprise at the bottom of multiple heat-transfer pipe 2, upper tube sheet 3, lower tube sheet 4, first dispersion plate 5, dispersion plate 6, incorporating section 7, tower 8, material liquid supplying tubing (inflow part) 9, gas supplying tubing (inflow part) 10 and thermal medium supplying tubing 11 and form.
Vaporising device 1 becomes following formation, under the state that the internal face of multiple heat-transfer pipe 2 defines the film of material liquid, the gas coming from gas supplying tubing 10 passes through from multiple passage 52 and flows into the inside of multiple heat-transfer pipe 2, heats described multiple heat-transfer pipe and described material liquid is evaporated by thermal medium.
Discoideus upper tube sheet 3 and lower tube sheet 4 is connected with in the bottom of incorporating section 7.Mutually vacate interval in upper tube sheet 3 and lower tube sheet 4 and be supported with multiple heat-transfer pipe 2.Multiple heat-transfer pipe 2 has the protuberance 2a protruded above upper tube sheet 3.First dispersion plate 5, in the inside of incorporating section 7, is arranged at the top of upper tube sheet 3.
Fig. 2 is the schematic diagram of the configuration status of the multiple passages 52 represented in the first dispersion plate 5 of vaporising device 1.Fig. 2 is the top view of the first dispersion plate 5, conveniently incorporating section represented by dashed line 7.
As shown in Figure 2, incorporating section 7 is overlooked as circle.First dispersion plate 5 defines the multiple liquid-through holes 51 passed through by material liquid and the multiple passages 52 passed through by gas.The shape of liquid-through hole 51 is overlooked as circle.The shape of passage 52 is overlooked as circle.In overlooking, in the first dispersion plate 5, each passage 52 is with the mode alternately configuration of 1 passage 52 between 2 liquid-through holes 51.The configuration status of the multiple passages 52 shown in present embodiment is an example, is not limited thereto, can adopts various configuration status.
Turn back in Fig. 1, observe from the bearing of trend of multiple heat-transfer pipe 2, multiple liquid-through hole 51 is configured at the position overlapping with the region not arranging heat-transfer pipe 2 of upper tube sheet 3.The substantial middle of each liquid-through hole 51 between adjacent 2 heat-transfer pipes 2 and above upper tube sheet 3.As long as liquid does not directly enter heat-transfer pipe 2 from each liquid-through hole 51, each liquid-through hole 51 can central authorities between adjacent 2 heat-transfer pipes 2, also can depart from.
The face of upper tube sheet 3 side of the first dispersion plate 5 is provided with nozzle 51a.Nozzle 51a from the first dispersion plate 5 towards upper tube sheet 3 side to protrusion.Nozzle 51a is arranged at the part defining liquid-through hole 51 in the face of upper tube sheet 3 side of the first dispersion plate 5.
Observe from the bearing of trend of multiple heat-transfer pipe 2, multiple passage 52 is configured at the position overlapping with the region being provided with multiple heat-transfer pipe 2.Distance (interval of the bearing of trend of heat-transfer pipe 2) between the lower end of multiple passage 52 and the upper end of multiple heat-transfer pipe 2 is such as the size of 1/50 ~ 1/5 scope relative to the internal diameter of incorporating section 7.Distance between the lower end of preferred multiple passage 52 and the upper end of multiple heat-transfer pipe 2 is the size of 1/30 ~ 1/10 scope relative to the internal diameter of incorporating section 7.
Observe from the bearing of trend of described multiple heat-transfer pipe 2, the shape of heat-transfer pipe 2 and the shape of passage 52 are similarly circular.The internal diameter of heat-transfer pipe 2 is such as the size of 20mm ~ 100mm scope.The internal diameter of preferred tube 2 is the size of 35mm ~ 70mm scope.
Shape when observing passage 52 and heat-transfer pipe 2 from the bearing of trend of multiple heat-transfer pipe 2 is not limited to circle, also can adopt the various shapes such as oval.But in order to make gas be smoothly through, shape when preferably observing passage 52 and heat-transfer pipe 2 from the bearing of trend of multiple heat-transfer pipe 2 is circular.
Observe from the bearing of trend of heat-transfer pipe 2, the center of passage 52 is consistent with the center of the heat-transfer pipe 2 be arranged at directly over it.
Observe from the bearing of trend of heat-transfer pipe 2, the center being arranged at the passage 52 directly over it also can offset from the center of heat-transfer pipe 2 slightly.That is, observe, as long as each multiple passage 52 is configured at the position overlapping with the region being provided with each multiple heat-transfer pipe 2 from the bearing of trend of multiple heat-transfer pipe 2.
Observe from the bearing of trend of described heat-transfer pipe 2, the area of heat-transfer pipe 2 is the area of the area being greater than the passage 52 be arranged at directly over it.The area be not limited to when observing multiple heat-transfer pipe 2 from the bearing of trend of described multiple heat-transfer pipe 2 is the area of the area being greater than the passage 52 be arranged at directly over it, also can for the area identical with the area of the passage 52 be arranged at directly over it.That is, area when observing multiple heat-transfer pipe 2 from the bearing of trend of described multiple heat-transfer pipe 2 is the area of more than the area of the passage 52 be arranged at directly over it.
In addition, area when observing the heat-transfer pipe 2 of more than 2 from the bearing of trend of the heat-transfer pipe 2 of described more than 2 is preferably arranged at the area of less than 2 times of the area of the passage 52 directly over it.
Material liquid supplying tubing 9 is connected to the upper portion side wall of incorporating section 7.Gas supplying tubing 10 is connected to the upper wall of incorporating section 7.Dispersion plate 6 is arranged at material liquid supplying tubing 9 and between gas supplying tubing 10 and the first dispersion plate 5.
The multiple points of fluid apertures 61 of the material liquid coming from material liquid supplying tubing 9 being carried out separatory are defined at dispersion plate 6.In FIG, observe from the bearing of trend of multiple heat-transfer pipe 2, multiple points of fluid apertures 61 are configured at the position overlapping with multiple liquid-through hole 51, but are not limited to this.Observe from the bearing of trend of multiple heat-transfer pipe 2, as long as multiple points of fluid apertures 61 are configured at and multiple nonoverlapping position of passage 52.
Be provided with from the described nozzle 61a protruded towards the first dispersion plate 5 side in the part defining point fluid apertures 61 in the face of the first dispersion plate 5 side of dispersion plate 6.
Between the peripheral part and the internal face of incorporating section 7 of dispersion plate 6, there is gap 62, but be not limited to this.As long as vaporising device 1 is to come from the flowing underneath of gas to dispersion plate 6 of gas supplying tubing 10, and the mode flowing into the inside of multiple heat-transfer pipe 2 is formed.
In the present embodiment, the mixed liquor of the solvent of cyclohexanone oxime and the described cyclohexanone oxime of dilution is used as material liquid.Described mixed liquor is supplied in vaporising device 1 through material liquid supplying tubing 9.
As described solvent, can use lower than cyclohexanone oxime boiling point and can dissolve and dilute the solvent of cyclohexanone oxime.The saturated alcohols, benzene, toluene etc. of the carbon number 1 ~ 8 being such as selected from methyl alcohol, ethanol, propyl alcohol, the tert-butyl alcohol, 1 hexanol, 1 octanol etc. can be enumerated, wherein particular methanol or ethanol.In addition, the mixed proportion of cyclohexanone oxime and solvent is by weight, and about 100: 1 ~ 1: 10 are advisable.
In addition, preferably when described mixed liquor is transferred to vaporising device 1 via material liquid supplying tubing 9, from gas supplying tubing 10, the inert gases such as lower alcohol and nitrogen such as methyl alcohol are directed into vaporising device 1 simultaneously.
In addition, use nitrogen as inert gas.Inert gas is not limited to nitrogen, can use various inert gas.
Thermal medium supplying tubing 11 is connected to the lower sides of incorporating section 7.Thermal medium supplying tubing 11 makes thermal medium flow into the outside wall surface of heat-transfer pipe 2.Such as steam etc. is used as thermal medium.
The vaporising device 1 of present embodiment is following formation: make the material liquid coming from material liquid supplying tubing 9 flow into the film of the inside of heat-transfer pipe 2 and the internal face formation material liquid at multiple heat-transfer pipe 2, in this case, make the outside wall surface of multiple heat-transfer pipe 2 by coming from the thermal medium heating of thermal medium supplying tubing 11, described material liquid is evaporated.
Below, the state of the internal flow of the incorporating section 7 in vaporising device 1 for material liquid and gas, uses Fig. 1 and enumerates an example and be described.
As shown in Figure 1, the material liquid coming from material liquid supplying tubing 9 passes through from point fluid apertures 61 of dispersion plate 6, flows into the liquid-through hole 51 being formed at the first dispersion plate 5.Material liquid to described liquid-through hole 51 inflow flow into the region not arranging heat-transfer pipe 2 of upper tube sheet 3.Flow into the material liquid overflow in described region, flow into the inside of multiple heat-transfer pipe 2.Thus, the state (so-called wetting wall-like state) defining the film of material liquid at the internal face of multiple heat-transfer pipe 2 is become.
On the other hand, the thermal medium coming from thermal medium supplying tubing 11 flows into the outside wall surface of multiple heat-transfer pipe 2.
Thus, multiple heat-transfer pipe is heated.
The gas coming from gas supplying tubing 10 passes through from the gap 62 between the peripheral part and the internal face of incorporating section 7 of dispersion plate 6, flows into the multiple passages 52 being formed at the first dispersion plate 5.The gas flowed into described passage 52 flows into the inside of heat-transfer pipe with the state defining the film of material liquid at the internal face of multiple heat-transfer pipe 2.
Be more than minimum allowable load in the liquid measure that flows down of the lower end of multiple heat-transfer pipe 2.At this, more than so-called minimum allowable load refer to: the material liquid that do not evaporate making the whole internal faces through multiple heat-transfer pipe 2 of being everlasting form more than the amount of the degree of the film of material liquid flows down from the lower end of multiple heat-transfer pipe 2.That is, by being more than minimum allowable load by the liquid measure management that flows down of the lower end at described multiple heat-transfer pipe 2, even if when the material liquid evaporation making the internal face flowing through described multiple heat-transfer pipe 2, also maintain the state that described internal face defines the film of material liquid.
Such as, when supply cyclohexanone oxime is as material liquid, in order to the internal face maintaining heat-transfer pipe 2 forms the state of liquid film, material liquid in the internal face lower end of heat-transfer pipe 2 to flow down liquid measure be the per unit length (m) of internal face lower end is more than 170kg/ hour, be preferably 170 ~ 1700kg/ hour, be more preferably 340 ~ 680kg/ hour.
In addition, when supply cyclohexanone oxime is as material liquid, the pressure preferably during evaporation mixed liquor is the pressure of below 1060torr.If pressure is greater than 1060torr, then likely cause the deterioration of cyclohexanone oxime.Preferably in the scope that pressure is 760torr (atmospheric pressure) ~ 1000torr, evaporate mixed liquor.
In addition, when supply cyclohexanone oxime is as material liquid, the temperature preferably during evaporation mixed liquor is more than 130 DEG C and the scope of less than 170 DEG C.The boil-off gas obtained by vaporising device 18 to be taken out at the bottom of tower through heat-transfer pipe 2.
Vaporising device 1 according to the present embodiment, observe from the bearing of trend of multiple heat-transfer pipe 2, at the first dispersion plate 5, multiple liquid-through hole 51 is formed at the position overlapping with the region not arranging heat-transfer pipe 2 of upper tube sheet 3, and multiple passage 52 is formed at the position overlapping with multiple heat-transfer pipe 2.Thus, the material liquid coming from material liquid supplying tubing 9 passes through from liquid-through hole 51 and flows into the region not arranging heat-transfer pipe 2 of upper tube sheet 3 and flow into the inside of described multiple heat-transfer pipe 2.Under the state that the internal face of described multiple heat-transfer pipe 2 defines the film of material liquid, the gas coming from gas supplying tubing 10 passes through from multiple passage 52 and flows into the inside of multiple heat-transfer pipe 2.In addition, the material liquid coming from material liquid supplying tubing 9 is suppressed to flow directly into multiple heat-transfer pipe 2.In addition, restriction comes from the flow direction of the gas of gas supplying tubing 10, and therefore gas flows swimmingly in the inside of multiple heat-transfer pipe 2.Therefore, it is possible to make the thickness of the film of the material liquid of the internal face being formed at multiple heat-transfer pipe 2 even.
According to the configuration of the supply unit of gas and material liquid, the thickness being formed at the film of the material liquid of the internal face of multiple heat-transfer pipe changes.If the lower thickness of the film of material liquid, then by the evaporation of described material liquid, the internal face of heat-transfer pipe exposes sometimes.If internal face exposes, likely the described internal face retained material liquid exposed residue and cause the blocking of heat-transfer pipe.
Relative to this, adopt following formation in the present embodiment, therefore the change being formed at the thickness of the film of the material liquid of the internal face of multiple heat-transfer pipe 2 is suppressed, described being configured to is observed from the bearing of trend of multiple heat-transfer pipe 2, multiple liquid-through hole 51 is configured at the position overlapping with the region not arranging heat-transfer pipe 2 of upper tube sheet 3, and multiple passage 52 is configured at the position overlapping with multiple heat-transfer pipe 2.In addition, the material liquid that do not evaporate making the whole internal faces through multiple heat-transfer pipe 2 of being everlasting form more than the amount of the degree of the film of material liquid flows down from the lower end of multiple heat-transfer pipe 2.Thus, even if will flow through the material liquid evaporation of the internal face of described heat-transfer pipe 2, internal face also can not expose and the residue of retained material liquid.The blocking of heat-transfer pipe can be suppressed thus and the evaporation of material liquid is carried out smoothly.
In addition, the part defining liquid-through hole 51 in the face of upper tube sheet 3 side of the first dispersion plate 5 is provided with nozzle 51a.Therefore, compared with not arranging the situation of nozzle 51a, the material liquid passed through from liquid-through hole 51 easily flows into the region not arranging heat-transfer pipe 2 of upper tube sheet 3.Thus, suppress the material liquid that passes through from liquid-through hole 51 dynamic and drip along the surface current of upper tube sheet 3 side of the first dispersion plate 5.Therefore, material liquid is suppressed to flow directly into multiple heat-transfer pipe 2.Thereby, it is possible to the internal face maintaining multiple heat-transfer pipe 2 forms the state of the film of uniform material liquid.
In addition, the part defining point fluid apertures 61 in the face of the first dispersion plate 5 side of dispersion plate 6 is provided with nozzle 61a.Therefore, compared with not arranging the situation of nozzle 61a, the material liquid passed through from point fluid apertures 61 easily flows into the liquid-through hole 51 being formed at the first dispersion plate 5.Thus, the material liquid that passes through from point fluid apertures 61 is suppressed to move along the surface current of the first dispersion plate 5 side of dispersion plate 6 and drip.Therefore, material liquid is suppressed to flow directly into multiple heat-transfer pipe 2.Thereby, it is possible to the internal face maintaining multiple heat-transfer pipe 2 forms the state of the film of uniform material liquid.
In addition, the gas coming from gas supplying tubing 10 with from gap 62 by and the mode passed through from multiple passage 52 and flow into the inside of multiple heat-transfer pipe formed.Thus, restriction comes from the flow direction of the gas of gas supplying tubing 10, and therefore gas flows swimmingly in the inside of multiple heat-transfer pipe 2.Therefore, flow through at gas in the process of the inside of multiple heat-transfer pipe 2, the internal face that can maintain multiple heat-transfer pipe 2 forms the state of the film of uniform material liquid.The blocking of heat-transfer pipe can be suppressed thus and the evaporation of material liquid is carried out smoothly.
In addition, observe from the bearing of trend of described heat-transfer pipe 2, the area of heat-transfer pipe 2 is the area of more than the area of passage 52.Therefore, the gas passed through from passage 52 easily flows into the inside of heat-transfer pipe 2.On the contrary, observe from the bearing of trend of described heat-transfer pipe 2, if the area of heat-transfer pipe 2 is the area of the area being less than passage 52, then the gas passed through from passage 52 flows into the outside of heat-transfer pipe 2 and upsets the flowing of the material liquid upper tube sheet 3.If upset the flowing of the material liquid in upper tube sheet 3, then the thickness being formed at the film of the material liquid of the internal face of heat-transfer pipe 2 changes.
In contrast, in the present embodiment, observe from the bearing of trend of described heat-transfer pipe 2, the area of heat-transfer pipe 2 is the area of more than the area of passage 52, therefore suppresses the gas passed through from passage 52 to flow into the outside of heat-transfer pipe 2.Thus, the upset of the flowing of the material liquid in upper tube sheet 3 is suppressed.The thickness of the film of the material liquid of the internal face being formed at heat-transfer pipe 2 can be suppressed thus to change.
In addition, observe from the bearing of trend of described heat-transfer pipe 2, the center of heat-transfer pipe 2 is consistent with the center of passage 52.Thus, the gas passed through from passage 52 easily flows into the inside of heat-transfer pipe 2.That is, the gas passed through from passage 52 is suppressed to flow into the outside of heat-transfer pipe 2.Thus, the upset of the flowing of the material liquid in upper tube sheet 3 is suppressed.The thickness of the film of the material liquid of the internal face being formed at heat-transfer pipe 2 can be suppressed thus to change.
In the vaporising device of present embodiment, use cyclohexanone oxime as material liquid, but be not limited thereto.In addition, the various material liquids that when can be used in evaporation, the residue of material liquid is residual sometimes.
In addition, in the vaporising device of present embodiment, on the first dispersion plate 5, be only provided with 1 dispersion plate 6, but be not limited thereto.Such as, the dispersion plate 6 of more than 1 or 2 also can be set on the first dispersion plate 5.In addition, dispersion plate 6 can arrange nozzle 61a and also nozzle 61a can not be set.
(the 2nd embodiment)
Fig. 3 is the longitudinal section of the vaporising device 1A of the 2nd embodiment of the present invention represented corresponding to Fig. 1.As shown in Figure 3, the vaporising device 1A of present embodiment is different from the vaporising device 1 of the 1st above-mentioned embodiment in the following areas, namely replaces dispersion plate 6 and arranges the second dispersion plate 12, has the transfer mechanism 13 that the material liquid that makes to flow out from multiple heat-transfer pipe 2 transfers to the top of the second dispersion plate 12.Other side is identical with above-mentioned formation, therefore puts on identical symbol to the key element identical with Fig. 1, and omits detailed description.
As shown in Figure 3, in vaporising device 1A, be provided with the second dispersion plate 12 in material liquid supplying tubing 9 and between gas supplying tubing 10 and the first dispersion plate 5.Multiple liquid-through holes 121 that the material liquid that makes to come from material liquid supplying tubing 9 flows into the liquid-through hole 51 being formed at the first dispersion plate 5 are provided with at the second dispersion plate 12, and multiple breather pipes 122 that the gas coming from gas supplying tubing 10 is passed through.Observe from the bearing of trend of multiple heat-transfer pipe 2, multiple liquid-through hole 121 is configured at and multiple nonoverlapping position of passage 52.
Fig. 4 A and Fig. 4 B is the schematic diagram of the configuration status of multiple breather pipes 122 of the second dispersion plate 12 representing vaporising device 1A.Fig. 4 A is the top view of the second dispersion plate 12, and conveniently incorporating section represented by dashed line 7 represents the notch part 122a of breather pipe 122 with double dot dash line.Fig. 4 B is the stereogram of the second dispersion plate 12.
As shown in Figure 4 A, the multiple liquid-through holes 121 passed through by material liquid and the multiple breather pipes 122 passed through by gas are defined at the second dispersion plate 12.The shape of liquid-through hole 121 is overlooked as circle.The shape of breather pipe 122 is overlooked as circle.In overlooking, 6 breather pipes 122 are configured to circular concentric at the second dispersion plate 12.The configurable number of the breather pipe 122 illustrated in the present embodiment is an example, but is not limited thereto, and can adopt various configurable number.
Gap 123 is there is between the peripheral part and the internal face of incorporating section 7 of the second dispersion plate 12.The area in gap 123 is preferably 5% ~ 40% of the sectional area of incorporating section 7, is more preferably 10 ~ 30%.
The aperture area of multiple breather pipes 122 of the second dispersion plate 12 is all added and area be the area of the scope of 30% ~ 70% of the area in gap 123.Preferably the aperture area of multiple breather pipes 122 of the second dispersion plate 12 is all added and area be the area of 40 ~ 60% of the area in gap 123.
Multiple breather pipe 122 in gas supplying tubing 10 side that is the central part side of the second dispersion plate 12 there is notch part 122a.(overlooking) is observed from the bearing of trend of heat-transfer pipe 2, notch part 122a is configured as follows: in 2 intersection points P1, the P2 linking the center CP2 of breather pipe 122 and the straight line of center CP1 of the second dispersion plate 12 and the circumference of breather pipe 122, is the mid point of the arc AR of notch part 122a near the intersection point P1 of the CP1 side, center of the second dispersion plate 12.
Wish that the central angle θ corresponding with the arc AR of notch part is such as 90 ° ~ 270 °, be more preferably about 150 ~ 210 °.
As shown in figs. 3 and 4b, the upper end of breather pipe 122 is protruded more towards the top than the upper end of the sidewall of the second dispersion plate 12.In the longitudinal section of Fig. 3, wish that the length H2 of the longitudinal direction of notch part 122a is about 10% ~ 80% relative to the total length H1 of breather pipe 122, be more preferably about 20 ~ 50%.
According to like this, owing to there is the breather pipe 122 in gas supplying tubing 10 side with notch part 122a, the harmful effect can suppress to produce the flowing of strong gas in the gap 123 of peripheral part thus, suppressing to liquid flow.
Turn back in Fig. 3, be provided with from the described nozzle 121a facing the first dispersion plate 5 side and protrude in the part defining liquid-through hole 121 in the face of the first dispersion plate 5 side of the second dispersion plate 12.
Gap 123 is there is between the peripheral part and the internal face of incorporating section 7 of the second dispersion plate 12.
Vaporising device 1A is formed in such a way: the gas coming from gas supplying tubing 10 passes through from described gap 123 and passes through from multiple passage 52 and flow into the inside of multiple heat-transfer pipe 2.
Transfer mechanism 13 has transfer pipe arrangement 131 and pump 132.In vaporising device 1A, at the bottom of tower, the bottom of 8 is connected with one end of transfer pipe arrangement 131.The other end of transfer pipe arrangement 131 is connected with in material liquid supplying tubing 9.
In order to the internal face maintaining heat-transfer pipe 2 defines the state of liquid film, the liquid measure that flows down making the material liquid of the internal face lower end at heat-transfer pipe 2 is needed to be more than the liquid measure of regulation.Therefore, material liquid does not evaporate and passes through from heat-transfer pipe 2 and to drop at the bottom of tower 8 sometimes.Described material liquid (non-evaporated liquor) at the bottom of tower 8 via transfer pipe arrangement 131 be supplied in pump 132.A part for described non-evaporated liquor utilizes pump 132 to pass through from transfer pipe arrangement 131, material liquid supplying tubing 9 and be again supplied in incorporating section 7.
According to like this, non-evaporated liquor circulation.The non-evaporated liquor of described supply passes through from the liquid-through hole 121 of the second dispersion plate 12 and flows into the region not arranging heat-transfer pipe 2 of upper tube sheet 3 via the liquid-through hole 51 of the first dispersion plate 5, and flows into the inside of multiple heat-transfer pipe 2.
Vaporising device 1A according to the present embodiment, is provided with the second dispersion plate 12, and observe from the bearing of trend of multiple heat-transfer pipe 2, multiple breather pipe 122 is configured to circular concentric.Therefore, compared with the situation of multiple breather pipe 122 random arrangement, suppress the flowing coming from the gas of gas supplying tubing 10 to be partial to a part in incorporating section 7, and the Zone Full in incorporating section 7 become even.
Therefore, the gas coming from gas supplying tubing 10 passes through from the gap 123 of the peripheral part of the second dispersion plate 12 and breather pipe 122, and be supplied to the first dispersion plate 5 equably, the flow direction of gas is limited, and gas successfully flows through the inside of multiple heat-transfer pipe 2.Thereby, it is possible to the internal face maintaining multiple heat-transfer pipe 2 defines the state of the film of uniform material liquid.
In addition, owing to having transfer mechanism 13, therefore, it is possible to by a part for non-evaporated liquor again for evaporation.
In the above-described embodiment, also ditch can be formed in the front end of the protuberance of heat-transfer pipe.
Fig. 5 A ~ Fig. 5 C is the schematic diagram of the variation of the protuberance representing heat-transfer pipe.
Such as, as shown in Figure 5A, the ditch 2Ab of V shape also can be formed in the front end of the protuberance 2Aa of heat-transfer pipe 2A.
In addition, as shown in Figure 5 B, the ditch 2Bb of U-shaped also can be formed in the front end of the protuberance 2Ba of heat-transfer pipe 2B.
In addition, as shown in Figure 5 C, the ditch 2Cb of concavity also can be formed in the front end of the protuberance 2Ca of heat-transfer pipe 2C.
If do not form the formation of ditch in the front end of the protuberance of heat-transfer pipe, then in order to distribute material liquid equably to multiple heat-transfer pipe, the height of the front end of the protuberance of each heat-transfer pipe must be made identical.If in contrast, form the formation of ditch in the front end of the protuberance of heat-transfer pipe, then when distributing material liquid equably to multiple heat-transfer pipe, the making precision of heat-transfer pipe diminishes with the requirement degree arranging precision.
(vapo(u)rization system)
Fig. 6 is the schematic diagram of the example representing vapo(u)rization system.
As shown in Figure 6, vapo(u)rization system 100 comprises vaporising device 1, pump 101, decompression distillation device 102 and condenser 103 and forms.
Vapo(u)rization system 100 is following systems: reclaim raw material from the mixture of the non-evaporated liquor of raw material unevaporated vaporising device 1 and the tar ingredients that comes from raw material and recycle in vaporising device 1.
Material liquid L1 is sent to incorporating section via material liquid supplying tubing.In this supply process, from solvent supplying tubing donor solvent L2, material liquid L1 and solvent L2 is mixed.
The mist of gas G1 and solvent gas G2 is sent to incorporating section via gas supplying tubing.
Under the state defining the film of material liquid at the internal face of multiple heat-transfer pipe, heat described multiple heat-transfer pipe by thermal medium H, described material liquid is evaporated.Obtain boil-off gas (cyclohexanone oxime gas) G3 thus.Meanwhile, the mixture of material liquid and higher boiling composition is obtained as residue C.As the thermal source of thermal medium H, there is no particular limitation, can use arbitrarily known thermal source.
A part (the non-evaporated liquor of the material liquid) C1 of residue C utilizes pump 101 pass through from transfer pipe arrangement, material liquid supplying tubing and be again supplied in incorporating section and circulate.
Remainder (also can be a remaining part of the residue C) C2 of residue C is supplied in decompression distillation device 102 and is distilled.Such as, when material liquid is cyclohexanone oxime, preferred described distillation is under the decompression of 1.4kPa ~ 10kPa (absolute pressure), and vapo(u)rizing temperature is 90 ~ 135 DEG C.Thus, distillation removing comprises the low boiling point component A of raw material, and discharges the higher boiling composition T as bottoms.
The low boiling point component A comprising the raw material of distillation removing is imported in condenser 103 and carries out condensation.Thus, reclaim the low boiling point component A1 comprising condensed raw material, and discharge uncooled low boiling point component A2.The low boiling point component A1 comprising the raw material after recovery passes through from transfer pipe arrangement, material liquid supplying tubing and is again supplied in incorporating section and is recycled.
According to a mode of the present invention, can provide and suppress the blocking of heat-transfer pipe and the tarring of raw material, successfully carry out the evaporation of material liquid, do not evaporate the recovery of raw material, and vaporising device 1 and the vapo(u)rization system 100 of raw-material evaporation can be carried out efficiently.
Above, limit is illustrated the preferred embodiment of the present invention example with reference to accompanying drawing limit, but the present invention does not limit this example.Each shape, combination etc. of each member of formation shown in above-mentioned example are an example, can carry out various change without departing from the spirit and scope of the invention based on designing requirement etc.
Embodiment
Below represent embodiments of the invention, but the present invention is not defined in this.
Embodiment 1
For the vaporising device of heat-transfer pipe possessing internal diameter 50mm, length 6m, evaporate material liquid by endless form.The mixed liquor of the solvent of cyclohexanone oxime and the described cyclohexanone oxime of dilution is used as described material liquid.Methyl alcohol is used as described solvent.Nitrogen is used as gas.Use the first dispersion plate as dispersion plate, the hop count of dispersion plate is set to 1 section (with reference to Fig. 1).Main operation condition is as follows.
The internal circulating load of non-evaporated liquor: 140 (140 ~ 150) kg/ hour root
The methanol solution quantity delivered of each root heat-transfer pipe: 0.85 (0.825 ~ 0.875) kg/ hour root
The methanol gas quantity delivered of each root heat-transfer pipe: 50 (50 ~ 52.5) kg/ hour root
The nitrogen gas supply amount of each root heat-transfer pipe: 5% of methanol gas quantity delivered
Evaporating temperature: 140 ~ 160 DEG C
Working pressure: below 950torr
Consequently until the cyclohexanone oxime evaporation capacity=95T of each root heat-transfer pipe, the blocking to heat-transfer pipe unconfirmed.
Embodiment 2
For the vaporising device of heat-transfer pipe possessing internal diameter 50mm, length 6m, evaporate material liquid by endless form.The mixed liquor of the solvent of cyclohexanone oxime and the described cyclohexanone oxime of dilution is used as described material liquid.Methyl alcohol is used as described solvent.Nitrogen is used as gas.Use the first dispersion plate and the second dispersion plate as dispersion plate, the hop count of dispersion plate is set to 2 sections.In addition, nozzle (with reference to Fig. 3) is set in the part defining point fluid apertures of the first dispersion plate.Main operation condition is as follows.
The internal circulating load of non-evaporated liquor: 140 (140 ~ 150) kg/ hour root
The methanol solution quantity delivered of each root heat-transfer pipe: 0.85 (0.825 ~ 0.875) kg/ hour root
The methanol gas quantity delivered of each root heat-transfer pipe: 55 (49 ~ 58) kg/ hour root
The nitrogen gas supply amount of each root heat-transfer pipe: 5% of methanol gas quantity delivered
Evaporating temperature: 140 ~ 160 DEG C
Working pressure: below 950torr
Consequently until the cyclohexanone oxime evaporation capacity=100T of each root heat-transfer pipe, the blocking to heat-transfer pipe unconfirmed.
Utilizability in industry
According to the present invention, can be provided in be formed when utilizing the evaporation material liquid of the liquid film type heat exchanger under vertical current and gas and good flow down liquid film, the blocking of heat-transfer pipe can be suppressed thus and make vaporising device, vapo(u)rization system and the method for evaporating that the evaporation of material liquid is carried out smoothly, therefore industrially exceedingly useful.
Description of reference numerals
1, 1A, 1B ... vaporising device, 2, 2A, 2B, 2C ... heat-transfer pipe, 2a, 2Aa, 2Ba, 2Ca protuberance, 2Ab, 2Bb, 2Cb ... ditch, 3 ... upper tube sheet (tube sheet), 5, 5A, 5B ... first dispersion plate, 6 ... dispersion plate, 7 ... incorporating section, 9 ... material liquid supplying tubing (inflow part), 10 ... gas supplying tubing (inflow part), 12 ... second dispersion plate, 13 ... transfer mechanism, 51 ... liquid-through hole, 51a ... nozzle, 52 ... passage, 62 ... gap, 100 ... vapo(u)rization system, 101 ... pump, 102 ... decompression distillation device, 103 ... condenser, 121 ... liquid-through hole, 122 ... breather pipe, 122a notch part.
Claims (11)
1. a vaporising device, is characterized in that, comprises:
Multiple heat-transfer pipe,
The tube sheet that the mode supported so that described multiple heat-transfer pipe is vacated interval is mutually formed,
Be arranged at the first dispersion plate of the top of described tube sheet,
With towards described first dispersion plate and the mode that material liquid and gas are flowed into formed inflow part,
The incorporating section formed in the mode of receiving described tube sheet and described first dispersion plate and
The second dispersion plate arranged between described inflow part and described first dispersion plate,
Described first dispersion plate is provided with the liquid-through hole of more than 2 formed in the mode passed through by described material liquid and the passage of more than 2 formed in the mode passed through by described gas, observe from the bearing of trend of described multiple heat-transfer pipe, described multiple liquid-through hole is formed at the position overlapping with the region not arranging described heat-transfer pipe of described tube sheet, and described multiple passage is formed at the position overlapping with the region being provided with described multiple heat-transfer pipe
Described multiple heat-transfer pipe has the protuberance formed in the mode protruded above described tube sheet,
Multiple liquid-through hole that the material liquid that makes to come from described inflow part is formed towards the mode that the described liquid-through hole being formed at described first dispersion plate flows into and the multiple breather pipes formed in the mode passed through by the gas coming from described inflow part are provided with at described second dispersion plate
Gap is defined between the peripheral part and the internal face of described incorporating section of described second dispersion plate,
Observe from the bearing of trend of described multiple heat-transfer pipe, multiple breather pipes of described second dispersion plate are configured to circular concentric,
Multiple breather pipes of described second dispersion plate have notch part in the central part side of described inflow part side and described second dispersion plate.
2. vaporising device according to claim 1, is characterized in that,
For described first dispersion plate, the face of the tube sheet side of described first dispersion plate is provided with nozzle,
Described nozzle from the tube sheet side of described first dispersion plate towards described tube sheet side to protrusion,
Described nozzle is arranged at the part defining described liquid-through hole in the face of the tube sheet side of described first dispersion plate.
3. vaporising device according to claim 1 and 2, is characterized in that,
The dispersion plate of more than 1 is provided with between described first dispersion plate and described inflow part,
The multiple liquid-through holes formed in the mode passed through by the described material liquid coming from described inflow part are provided with at the dispersion plate of described more than 1,
Observe from the bearing of trend of described multiple heat-transfer pipe, multiple liquid-through holes of the dispersion plate be at least configured at directly over described first dispersion plate in the dispersion plate of described more than 1 are configured in the position overlapping with the region not arranging multiple passage of described first dispersion plate.
4. vaporising device according to claim 1 and 2, is characterized in that,
Also there is the transfer mechanism that the material liquid flowed out from described multiple heat-transfer pipe is formed to the mode that described inflow part is transferred.
5. vaporising device according to claim 1 and 2, is characterized in that,
Ditch is defined in the front end of described protuberance.
6. vaporising device according to claim 1 and 2, is characterized in that,
Observe from the bearing of trend of described heat-transfer pipe, the area of the heat-transfer pipe in the heat-transfer pipe of described more than 2 is the area of more than the area of the passage of described first dispersion plate be arranged at directly over it.
7. vaporising device according to claim 1 and 2, is characterized in that,
Observe from the bearing of trend of described heat-transfer pipe, the center of described heat-transfer pipe is consistent with the center of the passage of described first dispersion plate be arranged at directly over it.
8. vaporising device according to claim 1 and 2, is characterized in that,
Described material liquid comprises cyclohexanone oxime.
9. a vapo(u)rization system, is characterized in that, it has:
Vaporising device described in any one in claim 1 ~ 8,
With the pump that the mode that a part for the residue of the unstrpped gas generated by described vaporising device is circulated in described vaporising device is formed,
The decompression distillation device formed in the mode of the remainder distilling described residue and
With the condenser that condensation is consisted of the mode of the raw material of described decompression distillation device distillation removing.
10. a method of evaporating, is characterized in that,
The vaporising device described in any one in claim 1 ~ 8 is used to make described material liquid heating evaporation, residue residual after obtaining unstrpped gas is distilled under the pressure lower than pressure during described heating evaporation, and the unstrpped gas condensation of removing will be distilled by distilling, reclaim the material liquid comprised in described residue thus.
11. method of evaporating according to claim 10, is characterized in that,
The mixed liquor of solvent that described material liquid is cyclohexanone oxime and is diluted, described solvent is alcohol, the mode of the state at least soaked by cyclohexanone oxime is become with the whole evaporating surface in described vaporising device, make described mixed liquor under the pressure of below 1060torr and the cyclohexanone oxime of evaporating surface lower end in described vaporising device flows down liquid measure is that the per unit length 1m of evaporating surface lower end evaporates under the condition of more than 170kg/ hour, described distillation is carried out under the decompression of 1.4kPa ~ 10kPa.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-004130 | 2012-01-12 | ||
| JP2012004130A JP2013141658A (en) | 2012-01-12 | 2012-01-12 | Evaporator, evaporating system and evaporating method |
| PCT/JP2012/080013 WO2013105342A1 (en) | 2012-01-12 | 2012-11-20 | Evaporator, evaporation system, and evaporation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104039408A CN104039408A (en) | 2014-09-10 |
| CN104039408B true CN104039408B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280066442.5A Active CN104039408B (en) | 2012-01-12 | 2012-11-20 | Vaporising device, vapo(u)rization system and method for evaporating |
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| Country | Link |
|---|---|
| JP (1) | JP2013141658A (en) |
| CN (1) | CN104039408B (en) |
| WO (1) | WO2013105342A1 (en) |
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| WO2018149776A1 (en) * | 2017-02-14 | 2018-08-23 | Covestro Deutschland Ag | Distributor device, in particular for falling film evaporators, and use thereof |
| CN114211120B (en) * | 2021-12-31 | 2024-01-12 | 中核武汉核电运行技术股份有限公司 | Tube-tube plate joint of steam generator for pressurized water reactor nuclear power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132064A (en) * | 1959-11-05 | 1964-05-05 | Scheffers Johannes P Hendrikus | Apparatus for the evaporation of liquids |
| US5004043A (en) * | 1987-03-24 | 1991-04-02 | Tch Thermo-Consulting-Heidelberg Gmbh | Internal tubular falling film apparatus for the evaporation of liquids and for the absortion or degassing of solutions of two or more substances |
| CN1285568C (en) * | 2001-03-28 | 2006-11-22 | 住友化学工业株式会社 | Method of evaporating cyclohexanone oxime |
| CN101954195A (en) * | 2010-04-29 | 2011-01-26 | 广州市心德实业有限公司 | Falling film evaporator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641601B2 (en) * | 1988-11-24 | 1994-06-01 | 三洋化成工業株式会社 | Molding composition |
| JP2912141B2 (en) * | 1993-10-05 | 1999-06-28 | 東洋エンジニアリング株式会社 | Liquid disperser installed in heat transfer tube |
| DE19602640A1 (en) * | 1996-01-25 | 1997-07-31 | Basf Ag | Process and evaporator for evaporating compounds sensitive to oxidation |
-
2012
- 2012-01-12 JP JP2012004130A patent/JP2013141658A/en active Pending
- 2012-11-20 WO PCT/JP2012/080013 patent/WO2013105342A1/en active Application Filing
- 2012-11-20 CN CN201280066442.5A patent/CN104039408B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132064A (en) * | 1959-11-05 | 1964-05-05 | Scheffers Johannes P Hendrikus | Apparatus for the evaporation of liquids |
| US5004043A (en) * | 1987-03-24 | 1991-04-02 | Tch Thermo-Consulting-Heidelberg Gmbh | Internal tubular falling film apparatus for the evaporation of liquids and for the absortion or degassing of solutions of two or more substances |
| CN1285568C (en) * | 2001-03-28 | 2006-11-22 | 住友化学工业株式会社 | Method of evaporating cyclohexanone oxime |
| CN101954195A (en) * | 2010-04-29 | 2011-01-26 | 广州市心德实业有限公司 | Falling film evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013141658A (en) | 2013-07-22 |
| CN104039408A (en) | 2014-09-10 |
| WO2013105342A1 (en) | 2013-07-18 |
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