CN202724724U - Reduced pressure distillation device with high feeding position and low collecting position - Google Patents
Reduced pressure distillation device with high feeding position and low collecting position Download PDFInfo
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- CN202724724U CN202724724U CN 201220446725 CN201220446725U CN202724724U CN 202724724 U CN202724724 U CN 202724724U CN 201220446725 CN201220446725 CN 201220446725 CN 201220446725 U CN201220446725 U CN 201220446725U CN 202724724 U CN202724724 U CN 202724724U
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Abstract
The utility model relates to a reduced pressure distillation device for organic materials such as lubricating oil, in particular to a reduced pressure distillation device with a high feeding position and a low collecting position. The reduced pressure distillation device comprises an evaporator casing, a feed liquid heating mechanism composed of a feed liquid input pipeline, a feed liquid conveying pump and a heater and a distillation cooling collecting reduced pressure mechanism composed of a condenser, a distillation collecting pipeline, a distillation collecting tank and a vacuum pump. An annular feed liquid interlayer channel formed by an interlayer wall and an evaporator casing lateral wall is arranged in a sealed evaporating cavity on the middle upper portion in the evaporator casing. An upper end of the annular feed liquid interlayer channel is open and communicated with the sealed evaporating cavity, a lateral end of the annular feed liquid interlayer channel is communicated with a heated feed liquid outlet at the upper end of the heater through a feeding pipe led out from a lateral wall of the evaporator casing, a flow-guiding groove is arranged below the annular feed liquid interlayer channel, and the bottom of the flow-guiding groove is connected with a flow-guiding pipe and communicated with the distillation cooling collecting reduced pressure mechanism through the flow-guiding pipe. The reduced pressure distillation device can restrain a pyrolysis degree of the heated feed liquid, reduces energy consumption of heating, and improves working efficiency.
Description
Technical field
The utility model relates to organic materials, for example the decompression distillation field of waste lubricating oil, particularly a kind of high-order feed low level collection decompression distillation device.
Background technology
Decompression distillation is a kind of distillating method of realizing reducing the energy-conservation of feed liquid boiling temperature and suppressing to distill the feed liquid pyrolysis by reducing air pressure, be widely used at present, but the energy saving of decompression distillation, the degree that suppresses the pyrolysis of distillation feed liquid and production efficiency are the focuses that current order distillation those skilled in the art pay close attention to.
Known vacuum distillation apparatus generally is structure shown in Figure 4, and its operation principle is summarized as follows:
With feed liquid (material of purification to be distilled) 4 by pan feeding valve 10 and pan feeding pipeline 9 notes in the evaporator shell 1 that is placed on the evaporator support 2, its injection rate accounts for about 1/2nd of evaporator shell 1 volume.
Utilize high-temperature heat carrier in the disk-shaped tube of heater 3, to circulate, for the feed liquid 4 in the evaporator shell 1 is carried out heat release.
Feed liquid 4 temperature after being heated constantly rise, when reaching the evaporating temperature of feed liquid 4 under its vacuum pressure, Evaporation Phenomenon begins to occur, in the feed liquid 4 at this moment, constantly having the high temperature gas phase distillate that is vaporized to break away from feed liquid 4 liquid levels constantly rises, part high temperature gas phase distillate is in the process of passing through longer flow process distance, because thermal losses is liquefied, again be back in the heated feed liquid 4 in bottom, another part can not be cooled liquefaction high temperature gas phase distillate enter in the distillate gathering line 6 via distillate exhaust outlet 5.
Enter the high temperature gas phase distillate in the distillate gathering line 6, passing through condenser 7 accepts to cool and enter in the distillate collecting tank 12, the distillate 13 that is liquefied through cooling is collected by distillate collecting tank 12, and the waste gas of the liquefaction that can not be cooled is discharged into the external world via toxic emission pipeline 11 and vavuum pump 8.
In the process of continual evaporation, in order to keep the optimal liquid level of evaporator shell 1 interior feed liquid 4, the feed liquid supply pipeline is communicated with pan feeding valve 10 outside the pan feeding pipeline 9, an amount of feed liquid 4 is supplemented to the inside of evaporator shell 1 by pan feeding valve 10 and pan feeding pipeline 9.
The defective that above-mentioned vacuum distillation apparatus exists is:
By being inputed in the evaporator shell 1, excessive feed liquid 4 is subjected to thermal evaporation, although can realize shortening the flow process distance of high temperature gas phase distillate (in evaporation process, the feed liquid liquid level is apart from the distance that can collect distillate), improve the evaporation efficiency of feed liquid 4, but (pot phenomenon that rises refers to: feed liquid is in being heated in the generation of pot phenomenon because the very easy initiation of thicker feed liquid liquid layer is risen, having a large amount of gases to evaporate to overflow and constantly pile up from feed liquid with the form of foam goes up, until be discharged into extraneous phenomenon by the distillate discharge pipe line, the relation that the thickness of this phenomenon and feed liquid liquid layer is proportional), thus can only be with less feed liquid 4 to sacrifice suppress the to rise generation of pot phenomenon of shorter flow process distance.
The obstruction of the longer flow process distance of consequent high temperature gas phase distillate Gonna breakthrough, wherein a part is liquefied because of thermal losses, also to again be back in the heated feed liquid 4 in bottom, finally not only aggravated being distilled the degree of pyrolysis of feed liquid, also reduce the energy saving of device, also reduced the working (machining) efficiency of device.
Chinese patent (patent No. CN 101732881 A) discloses a kind of molecular still: the acting of distiller cylindrical shell partly is comprised of the vertical chuck of circle, it is radiator body that the heating agent conduction oil is arranged in chuck, in jacket cylinder, be provided with condenser, the jacket cylinder inwall to be provided with between the condenser by on lower flange, column and scrape the rotating cage device that lath forms, be provided with upper flange on jacket cylinder top, material inlet, the rotating shaft that is connected with the rotating cage device, reductor and motor, be respectively arranged with vacuum port in the jacket cylinder bottom, skewed slot, the heavy oil outlet, the light oil feeder, light oil outlets etc., the outside tube wall of this device condenser pipe and the radial distance between the cylinder inboard wall are set to 3.6cm～4.2cm.The internal diameter of cylindrical shell is arranged between 460mm～580mm, and working portion length is arranged between 1.3m～1.8m in the cylindrical shell.The shortcoming of this device is: the higher and miniaturization because of its compact accuracy, be difficult to realize the cooked mode of long-time high production capacity, inadaptable processing higher boiling, thermal sensitivity is had relatively high expectations, include more impurity and the lower feed liquid of processing added value, otherwise: because outside tube wall and the radial distance setting between the cylinder inboard wall of condenser pipe only is 3.6cm ~ 4.2cm, the jacket cylinder inwall to be provided with between the condenser by on lower flange, column and scrape the rotating cage device that lath forms, thus when charging and rotary work, be very easy to make the feed liquid drop to be splashed on the outside tube wall of condenser pipe by cylinder inboard wall, form thus short circuit evaporation (without vaporization by the collected feed liquid of distillate gathering system); Because of the jacket cylinder inwall be heat delivery surface be again evaporating surface, the compact precise space that will certainly will be installed by the solid formation that is produced within the shorter working time thus carries out dirt to be destroyed, and device was entered within the shorter working time in the long time between overhauls(TBO).Miniaturization because of device certainly will cause the working (machining) efficiency of device low.Because of the apparatus structure more complicated, certainly will cause the manufacturing cost of device and maintenance cost too high.
In sum, because of the time between overhauls(TBO) of device long, certainly will shorten production cycle of device, the factor such as working (machining) efficiency is low in addition, the economic benefit that finally can cause the too high and very difficult embodiment feed liquid of processing charges to be processed.
The utility model content
The purpose of this utility model is to overcome the deficiency of background technology, and provide a kind of by under the feed liquid sandwich passage outlet not the evaporating surface of other heat carrier heat release of tool realize the feed liquid evaporation, realize the high-order feed low level that the low level of distillate is collected is collected the decompression distillation device by the deflector that is arranged under the outlet of feed liquid sandwich passage.
The technical scheme that realizes the utility model purpose is:
A kind of high-order feed low level is collected the decompression distillation device, comprise evaporator shell, and by the feed liquid intake pipeline, the feed liquid delivery pump, the feed liquid heating arrangements that heater forms, by condenser, the distillate gathering line, the distillate collecting tank, the mechanism of decompressor is collected in the distillate cooling that vavuum pump forms, in the airtight evaporation cavity in middle and upper part in evaporator shell, the annular feed liquid sandwich passage that is made of interlayer wall and evaporator shell body sidewall is installed, its opening-like and airtight evaporation cavity in upper end of this annular feed liquid sandwich passage is communicated with, the feed pipe that its side is drawn by the evaporator shell body sidewall is communicated with the material liquid outlet that is heated of heater upper end, below this annular feed liquid sandwich passage guiding gutter is installed, this guiding gutter bottom is connected with mozzle and collects the mechanism of decompressor by this mozzle with the distillate cooling and is communicated with.
Adopt the utility model of technique scheme, its outstanding effect is: realize that by the outlet of feed liquid sandwich passage feed liquid is at the high-level discharging of breaking through under the static pressure, inhibition is splashed because of feed liquid and is caused the short circuit evaporation, by the evaporating surface of other heat carrier heat release of tool not, not only can avoid forming coking material because of heat release on the evaporating surface, also can make the feed liquid after being heated realize high-efficiency evaporating, by being arranged at the deflector under the outlet of feed liquid sandwich passage, can realize the efficient low level of distillate is collected, basic structure by device, the degree of pyrolysis of rear feed liquid not only can suppress to be heated, also can reduce a large amount of energy consumptions that heats, and can significantly improve the operating efficiency of device.
The technical scheme that realizes the utility model purpose also can have following preferred version:
Described evaporator shell be one with the vertical structure tank container of loam cake.
Described evaporator shell is the vertical structure tank container that there is opening a upper coarse and lower fine and upper end.
Described interlayer wall be one less than described evaporator shell internal diameter and upper coarse and lower fine conical shell.
Described evaporator shell intracoelomic cavity be equipped with inserted by its loam cake and keep gapped cold-trap with interlayer wall, guiding gutter.
Described cold-trap is a upper end open, lower end closed, upper coarse and lower fine conical shell.
Described cold-trap and cold-trap loam cake form a upper coarse and lower fine conical shell of upper and lower end sealing, be respectively arranged with the cooling medium outlet and insert the cooling medium inlet of bottom in this conical shell on the cold-trap loam cake.
The cell body of described guiding gutter is interconnected to constitute by cell body internal layer and cell body skin, between cell body internal layer and cell body skin, be formed with airtight mezzanine space, described cell body bottom center is connected with mozzle one end that runs through cell body, and this mozzle other end is connected with the condenser inlet that the mechanism of decompressor is collected in the distillate cooling.
The body of described mozzle is interconnected to constitute by water conservancy diversion inner tube and water conservancy diversion outer tube, is formed with airtight mezzanine space between water conservancy diversion inner tube and water conservancy diversion outer tube.
Described heater is one and places the binary channels tubular heat exchanger outside the evaporator shell.
On the feed liquid intake pipeline between described feed liquid delivery pump and the heater check valve is installed.
Between the feed pipe between material liquid outlet and the annular feed liquid sandwich passage of being heated of described heater barostat is installed.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 is the structural representation of the utility model embodiment 3.
Fig. 4 is known vacuum distillation apparatus structural representation.
The specific embodiment
Further set forth the utility model below by embodiment, purpose only is to understand better the utility model content.
Embodiment 1:
Referring to Fig. 1, among Fig. 1: 1-evaporator shell, 2-loam cake, 3-interlayer wall, 4-vavuum pump, 5-toxic emission pipeline 5, the 6-guiding gutter, 7-condenser, 8-distillate gathering line, 9-liquid phase distillate, 10-distillate collecting tank, 11-evaporator support, 12-residual liquid discharge valve, 13-residual liquid discharge mouth, 14-guiding gutter support, the 15-mozzle, 16-raffinate, 17-manhole, the 18-heater, 19-liquor inlet, 20-radiator body core pipe, the 21-material liquid outlet that is heated, the 22-feed pipe, 23-feed liquid delivery pump, 24-feed liquid intake pipeline, 25-pan feeding valve.
In the present embodiment, evaporator shell 1 be one with the vertical structure tank container of loam cake 2, the main body of this tank container and loam cake 2 form airtight evaporation cavity, the main body of this tank container is installed on the evaporator support 11, and the main body of tank container is thick lower end, upper end fine texture, and the parts that adopt the thin tank container in thick lower end, this upper end to can be setting in it are created more favourable working space.
In the airtight evaporation cavity in middle and upper part in described evaporator shell 1, the annular feed liquid sandwich passage that outer surface and evaporator shell 1 sidewall by interlayer wall 3 consist of is installed, this interlayer wall 3 be one less than the cylindrical shell of described evaporator shell 1 internal diameter, its bottom is fixed by bottom plate and is connected on the inwall of evaporator shell 1, remain silent in evaporator shell 1 interior formation lower end thus, the annular feed liquid sandwich passage that upper end open is communicated with airtight evaporation cavity, consist of the interlayer wall 3 of this annular feed liquid sandwich passage structure, its inner surface is that the interior feed liquid of passage is by the only way which must be passed of passage upper end open overflow discharge, that is the inner surface of interlayer wall 3 is exactly the feed liquid evaporating surface, this interlayer wall 3 is upper coarse and lower fine conical shells, the inclination evaporating surface that this conical shell forms is conducive to more realize that the feed liquid that suppresses along evaporating surface trickles makes its elegant short circuit Evaporation Phenomenon that causes because of external force downwards, reduces the thickness of evaporating surface top feed liquid liquid film.
Be provided with the feed pipe 22 of being drawn by evaporator shell 1 sidewall at above-mentioned annular feed liquid sandwich passage side, the outer end of feed pipe 22 is communicated with the material liquid outlet 21 that is heated of heater 18 upper ends, below this annular feed liquid sandwich passage, guiding gutter 6 is installed, this guiding gutter 6 is similar to funnel shaped, be placed in annular feed liquid sandwich passage below by guiding gutter support 14, the funnel end opening of guiding gutter 6 bottom center connects an end of mozzle 15, these mozzle 15 other ends pass evaporator shell 1 sidewall and are communicated with condenser 7 imports that the distillate cooling is collected in the mechanism of decompressor, consist of the distiller deflector by guiding gutter 6 and mozzle 15.
The feed liquid heating arrangements mainly is comprised of feed liquid intake pipeline 24, feed liquid delivery pump 23 and heater 18, feed liquid intake pipeline 24 1 ends communicate with pan feeding valve 25, the other end is communicated with via the liquor inlet 19 of feed liquid delivery pump 23 with heater 18 bottoms, and the material liquid outlet 21 that is heated of heater 18 upper ends communicates with the feed pipe 22 of annular feed liquid sandwich passage.
The distillate cooling is collected the mechanism of decompressor and mainly is comprised of condenser 7, distillate gathering line 8, distillate collecting tank 10, toxic emission pipeline 5 and vavuum pump 4, distillate collecting tank 10 is vertical structure tank containers that are placed on the support, its upper end is provided with import and the outlet of inserting appropriate depth, this import respectively 15 outlets of the mozzle by distillate gathering line 8, condenser 7 and outside placing evaporator shell 1 is communicated with, and the outlet of distillate collecting tank 10 is communicated with by the import of toxic emission pipeline 5 with vavuum pump 4.
In the present embodiment, be not limited to principle of heating and the form of heater 18, also be not limited to the running route of feed liquid intake pipeline 24, if having by under the outlet of annular feed liquid sandwich passage not the evaporating surface of other heat carrier heat release of tool (inner surface of interlayer wall 3) realize the feed liquid evaporation, realize the low level of distillate collected and both be considered as the technical solution of the utility model category by being arranged at deflector under the annular feed liquid sandwich passage outlet.
The operation principle of embodiment 1;
Open vavuum pump 4, make high-order feed low level collect decompression distillation device system and enter the vacuum decompression state, provide advantage for reducing the feed liquid boiling point.
Feed liquid is entered in the feed liquid intake pipeline 24 by pan feeding valve 25, under the effect of feed liquid delivery pump 23, feed liquid enters from bottom to top mobile being heated of heater 18 inside via liquor inlet 19, acceptance can make the heat that component evaporates in it under this operating mode, feed liquid after being heated under static pressure via the material liquid outlet 21 that is heated of heater 18 upper ends, it is inner and constantly up that feed pipe 22 enters annular feed liquid sandwich passage, until overflow and along interlayer wall 3 inner surfaces (evaporating surface) trickling downwards by passage is suitable for reading, the feed liquid of this moment is at high temperature, break through under the potential difference of static pressure and decompression, efficient Evaporation Phenomenon will occur, in the high temperature feed liquid of on evaporating surface, trickling, constantly there is the high temperature gas phase distillate disengaging feed liquid liquid level that is vaporized outwards elegant, make the remarkable rising of the interior air pressure of evaporation confined space and form larger pressure reduction with vavuum pump 4, under the effect of pressure reduction, the high temperature gas phase distillate that breaks away from the feed liquid liquid level need not overcome gravity and hinder, come downwards within the guiding gutter 6 along airflow direction, be discharged within the condenser 7 via mozzle 15.
Enter the high temperature gas phase distillate of condenser 7 under the effect of cooling, be liquefied as liquid phase distillate 9 and enter in the distillate collecting tank 10 via distillate gathering line 8, the waste gas of the liquefaction that can not be cooled is discharged into the external world via toxic emission pipeline 5 and vavuum pump 4.
Remaining raffinate 16 falls into the bottom of evaporator shell 1 after evaporation.
In above-mentioned distillation pattern of once being heated, the feed liquid medium is separated into relative two media, wherein a kind of medium is liquid phase distillate 9, wherein another kind of medium is raffinate 16, still need carry out following affirmation adjustment but can the ratio between resulting liquid phase distillate 9 and the raffinate 16 reach the expection plan.
If the ratio of gained liquid phase distillate 9 has surpassed anticipated number, can realize final purpose by the exothermic temperature that reduces heater 18 or the feed velocity that raising enters heater 18 so, otherwise otherwise.
When the ratio of gained liquid phase distillate 9 reached the rational quantity of expection, raffinate 16 also met discharge standard so, by residual liquid discharge valve 12 raffinate 16 is discharged within the raffinate storage tank thus.
In sum,
The utility model by having larger drift diameter area annular feed liquid sandwich passage and the ingenious combination of evaporating surface, the feed liquid that can be in the annular feed liquid sandwich passage enters evaporating surface breaking through under the static pressure with state stably, can efficiently suppress feed liquid in entering the process of evaporating surface because of the Evaporation Phenomenon that is short-circuited of splashing; By the evaporating surface of other heat carrier heat release of tool not, not only can avoid on the evaporating surface also can making the feed liquid after being heated realize high-efficiency evaporating because heat release forms coking material; By being arranged at the deflector under the annular feed liquid sandwich passage outlet, can realize the efficient low level of distillate is collected; Be heated and characteristics such as high-efficiency evaporating from up to down by bottom-up flow of feed liquid, the degree of pyrolysis of the rear feed liquid that not only can suppress to be heated also can reduce a large amount of energy consumptions that heats, and can significantly improve the operating efficiency of device.
Embodiment 2:
Referring to Fig. 2, among Fig. 2: 1-evaporator shell, 2-loam cake, 3-interlayer wall, 4-vavuum pump, 5-toxic emission pipeline, the 6-guiding gutter, 7-condenser, 8-distillate gathering line, 9-liquid phase distillate, 10-distillate collecting tank, 11-evaporator support, 12-residual liquid discharge valve, 13-residual liquid discharge mouth, 14-guiding gutter support, the 15-mozzle, 16-raffinate, 17-manhole, the 18-heater, 19-liquor inlet, 20-radiator body core pipe, the 21-material liquid outlet that is heated, 22-feed pipe, 23-feed liquid delivery pump, 24-feed liquid intake pipeline, 25-pan feeding valve, 26-barostat, the 27-check valve, 28-cold-trap, 29-cooling medium.
Described evaporator shell 1 is the vertical structure tank container that there is opening a upper end, and described tank container is upper coarse and lower fine structure.
Described evaporator shell 1 inner chamber be equipped with inserted by its loam cake 2 and keep gapped cold-trap 28 with interlayer wall 3, guiding gutter 6.
Described cold-trap 28 is a upper end open, lower end closed, upper coarse and lower fine conical shell.
Within cold-trap 28, be filled with cooling medium 29.
The cell body of described guiding gutter 6 is interconnected to constitute by cell body internal layer and cell body skin, between cell body internal layer and cell body skin, be formed with airtight mezzanine space, described cell body bottom center is connected with mozzle 15 1 ends that run through cell body, and these mozzle 15 other ends are connected with condenser 7 imports that the mechanism of decompressor is collected in the distillate cooling.
The body of described mozzle 15 is interconnected to constitute by water conservancy diversion inner tube and water conservancy diversion outer tube, is formed with airtight mezzanine space between water conservancy diversion inner tube and water conservancy diversion outer tube.
On the feed liquid intake pipeline 24 between described feed liquid delivery pump 23 and the heater 18 check valve 27 is installed.
Between the feed pipe 22 between material liquid outlet 21 and the annular feed liquid sandwich passage of being heated of described heater 18 barostat 26 is installed.
Based on the optimization of said structure, make the performance of the present embodiment can be achieved as follows variation:
Under the cooling effect of the cold-trap 28 that inserts evaporator shell 1 inside and cooling medium 29, occur in the feed liquid of evaporation along interlayer wall 3 inner surfaces (evaporating surface) trickling downwards, the very fast outer wall by cold-trap 28 of high temperature gas phase distillate that constantly is vaporized adheres to, cools off, and be liquefied so that in this space and the pressure reduction between the vacuum source realize further reducing.
By the thin cold-trap 28 in thick lower end, upper end, the formed evaporating surface of interlayer wall 3 inner surfaces that is made of the thin conical shell in thick lower end, upper end can be remained in the relative equidistant scope with distance between the cold-trap 28.
For the purpose of energy-conservation, cooling medium 29 can with the air of heat convection, can also be used the water of realizing cooling by evaporation.
By the mezzanine space of guiding gutter 6 and the mezzanine space of mozzle 15, can take provision for thermal insulation within it, the liquid phase distillate 9 of liquefaction of can further suppressing to be cooled is subjected to the puzzlement of high temperature again, provision for thermal insulation both can realize heat insulation purpose by filling air or other insulation material in mezzanine space, can also realize heat insulation purpose by the air in the sandwich is evacuated to vacuum state.
By above-mentioned deflector, not only liquid phase distillate 9 water conservancy diversion can be discharged, also gas phase distillate water conservancy diversion can be discharged.
By above-mentioned check valve 27 can guarantee in the situation that feed liquid delivery pump 23 for some reason and out of service, and make still to hold in the heater 18 feed liquid is arranged, under the effect of static pressure under the feed liquid liquid level, realize suppressing the generation of heater 18 interior coking materials by suppressing the feed liquid evaporation.
Embodiment 3:
Referring to Fig. 3, among Fig. 3: 1-evaporator shell, 2-loam cake, 3-interlayer wall, 4-vavuum pump, 5-toxic emission pipeline, the 6-guiding gutter, 7-condenser, 8-distillate gathering line, 9-liquid phase distillate, 10-distillate collecting tank, 11-evaporator support, 12-residual liquid discharge valve, 13-residual liquid discharge mouth, 14-guiding gutter support, the 15-mozzle, 16-raffinate, 17-manhole, the 18-heater, 19-liquor inlet, 20-radiator body core pipe, the 21-material liquid outlet that is heated, 22-feed pipe, 23-feed liquid delivery pump, 24-feed liquid intake pipeline, 25-pan feeding valve, 26-barostat, the 27-check valve, the 28-cold-trap, 29-cooling medium, 30-cold-trap loam cake, the outlet of 31-cooling medium, the 32-cooling medium inlet.
Described cold-trap 28 forms a conical shell that the upper and lower end sealing is upper coarse and lower fine with cold-trap loam cake 30, is respectively arranged with cooling medium outlet 31 and inserts the cooling medium inlet 32 of bottom in this conical shell on cold-trap loam cake 30.Cooling medium outlet 31 is communicated with feed liquid intake pipeline 24 by pan feeding valve 25.
Based on the optimization of said structure, make the performance of the present embodiment can be achieved as follows variation:
Can be with the sealing of the cooling mediums 29 in the cold-trap 28 by 28 of cold-trap loam cake 30 and cold-traps, under the effect of medium import 32 and cooling medium outlet 31 and it is flowed absorb heat.
By being communicated with pan feeding valve 25, cooling medium outlet 31 can use the feed liquid of pre-distillation as cooling medium 29, heat exchange is carried out in the bottom that inputs to cold-trap 28 via the cooling medium inlet 32 on the cold-trap loam cake 30, for the high temperature gas phase distillate of evaporation in the confined space cools off and makes its liquefaction, not only reduced thus the cooling energy consumption, the temperature of pre-distillation feed liquid is significantly promoted.
Of particular note:
No matter be embodiment 1 or embodiment 2, all multistage high-order feed low level can be collected the decompression distillation device and carry out the plural serial stage use, realize multistage accurate fractionating effect with this.
The high-order feed low level collection decompression distillation device that is communicated with the outlet of feed liquid storage tank by pan feeding valve 25 is defined as the high-order feed low level collection of prime decompression distillation device at this, the high-order feed low level collection decompression distillation device that is communicated with the raffinate storage tank by residual liquid discharge valve 12 is defined as the high-order feed low level collection of rear class decompression distillation device at this, and the pan feeding valve 25 that the high-order feed low level of rear class is collected the decompression distillation device is communicated with the residual liquid discharge valve 12 that prime high position feed low level is collected the decompression distillation device.
Heat carrier preferentially carries out heat release to the heater 18 that the high-order feed low level of rear class is collected the decompression distillation device by feed-line, heat carrier after elementary heat release carries out heat release to the heater 18 that the high-order feed low level of prime is collected the decompression distillation device again, the heat carrier after whole level heat release be discharged into continue in the heating equipment to be heated, reciprocation cycle.
Collect decompression distillation device system internal gas pressure for the high-order feed low level that makes above-mentioned plural serial stage and keep balance, the outlet that multistage high-order feed low level is collected the toxic emission pipeline 5 of decompression distillation device can be communicated with the import of same vavuum pump 4.
Determine according to above-mentioned configuration, feed liquid is moved from front to back, and heat carrier is from backward front operation, this feed liquid and heat carrier what form between the two is the countercurrent flow relation, obtain to realize thus the decompression distillation streamline of an incremental accurate fractionation by front stage arrangement each cut to downstream component by the countercurrent flow relation.
Collect between decompression distillation device and the high-order feed low level collection of the rear class decompression distillation device at the high-order feed low level of the prime of above-mentioned configuration, need of work according to objective reality, according to above-mentioned annexation, can also insert the high-order feed low level of intergrade and collect the decompression distillation device.
The description of the various embodiments described above all is not the restriction to technical solutions of the utility model, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Claims (10)
1. a high-order feed low level is collected the decompression distillation device, comprise evaporator shell, and by the feed liquid intake pipeline, the feed liquid delivery pump, the feed liquid heating arrangements that heater forms, by condenser, the distillate gathering line, the distillate collecting tank, the mechanism of decompressor is collected in the distillate cooling that vavuum pump forms, it is characterized in that: in the airtight evaporation cavity in the middle and upper part in evaporator shell, the annular feed liquid sandwich passage that is made of interlayer wall and evaporator shell body sidewall is installed, its opening-like and airtight evaporation cavity in upper end of this annular feed liquid sandwich passage is communicated with, the feed pipe that its side is drawn by the evaporator shell body sidewall is communicated with the material liquid outlet that is heated of heater upper end, below this annular feed liquid sandwich passage guiding gutter is installed, this guiding gutter bottom is connected with mozzle and collects the mechanism of decompressor by this mozzle with the distillate cooling and is communicated with.
2. high-order feed low level according to claim 1 is collected the decompression distillation device, it is characterized in that: described interlayer wall be one less than described evaporator shell internal diameter and upper coarse and lower fine conical shell.
3. high-order feed low level according to claim 1 is collected the decompression distillation device, it is characterized in that: described evaporator shell intracoelomic cavity be equipped with inserted by its loam cake and keep gapped cold-trap with interlayer wall, guiding gutter.
According to claim 1 or 3 described high-order feed low levels collect the decompression distillation devices, it is characterized in that: described cold-trap is a upper end open, lower end closed, upper coarse and lower fine conical shell.
5. high-order feed low level according to claim 4 is collected the decompression distillation device, it is characterized in that: described cold-trap and cold-trap loam cake form a upper and lower end sealing and upper coarse and lower fine conical shell, be respectively arranged with the cooling medium outlet and insert the cooling medium inlet of bottom in this conical shell on the cold-trap loam cake.
6. high-order feed low level according to claim 1 is collected the decompression distillation device, it is characterized in that: the cell body of described guiding gutter is interconnected to constitute by cell body internal layer and cell body skin, between cell body internal layer and cell body skin, be formed with airtight mezzanine space, described cell body bottom center is connected with mozzle one end that runs through cell body, and this mozzle other end is connected with the condenser inlet that the mechanism of decompressor is collected in the distillate cooling.
7. high-order feed low level according to claim 1 is collected the decompression distillation device, and it is characterized in that: the body of described mozzle is interconnected to constitute by water conservancy diversion inner tube and water conservancy diversion outer tube, is formed with airtight mezzanine space between water conservancy diversion inner tube and water conservancy diversion outer tube.
8. high-order feed low level according to claim 1 is collected the decompression distillation device, and it is characterized in that: described heater is one and places the binary channels tubular heat exchanger outside the evaporator shell.
9. high-order feed low level according to claim 1 is collected the decompression distillation device, it is characterized in that: on the feed liquid intake pipeline between described feed liquid delivery pump and the heater check valve is installed.
10. high-order feed low level according to claim 1 is collected the decompression distillation device, it is characterized in that: between the feed pipe between material liquid outlet and the annular feed liquid sandwich passage of being heated of described heater barostat is installed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220446725 CN202724724U (en) | 2012-09-04 | 2012-09-04 | Reduced pressure distillation device with high feeding position and low collecting position |
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| CN 201220446725 CN202724724U (en) | 2012-09-04 | 2012-09-04 | Reduced pressure distillation device with high feeding position and low collecting position |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220446725 Expired - Fee Related CN202724724U (en) | 2012-09-04 | 2012-09-04 | Reduced pressure distillation device with high feeding position and low collecting position |
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| Country | Link |
|---|---|
| CN (1) | CN202724724U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872607A (en) * | 2012-09-04 | 2013-01-16 | 吴国存 | Reduced-pressure distiller with high-position feeding and low-position collecting functions |
| CN104528851A (en) * | 2014-10-28 | 2015-04-22 | 科林未来能源技术(北京)有限公司 | Black water treatment device for coal gasification system of entrained flow |
-
2012
- 2012-09-04 CN CN 201220446725 patent/CN202724724U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872607A (en) * | 2012-09-04 | 2013-01-16 | 吴国存 | Reduced-pressure distiller with high-position feeding and low-position collecting functions |
| CN102872607B (en) * | 2012-09-04 | 2015-05-13 | 唐山山岛石油化学有限公司 | Reduced-pressure distiller with high-position feeding and low-position collecting functions |
| CN104528851A (en) * | 2014-10-28 | 2015-04-22 | 科林未来能源技术(北京)有限公司 | Black water treatment device for coal gasification system of entrained flow |
| CN104528851B (en) * | 2014-10-28 | 2017-01-18 | 科林未来能源技术(北京)有限公司 | Black water treatment device for coal gasification system of entrained flow |
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