CN219922087U

CN219922087U - Molecular distillation device capable of automatically forming film without stirring

Info

Publication number: CN219922087U
Application number: CN202320977020.9U
Authority: CN
Inventors: 薛永和; 苏怀波; 夏贵山; 霍成立; 许相绪; 于秀波
Original assignee: Mojia Shanghai Biotechnology Co ltd
Current assignee: Mojia Shanghai Biotechnology Co ltd
Priority date: 2023-04-26
Filing date: 2023-04-26
Publication date: 2023-10-31
Anticipated expiration: 2033-04-26

Abstract

The utility model provides a molecular distillation device capable of automatically forming a film without stirring, which comprises a barrel, a condensing device and a liquid distributor, wherein the top of the barrel is of a curved surface structure, the middle of the barrel is of a straight surface structure, the top of the barrel is provided with a feed inlet, the curved surface structure is of a smooth curved surface which is diffused by taking the feed inlet as the center, the liquid distributor is coaxially arranged at the position, close to the feed inlet, of the top of the barrel, the condensing device is arranged around the outer surface of the barrel, the top of the condensing device is provided with a liquid inlet, the bottom of the condensing device is provided with a vacuum port, and the liquid inlet and the feed inlet are coaxially arranged. Through the cooperation setting of barrel, condensing equipment and liquid distributor for the whole evaporation surface of barrel can evenly cover the liquid film, and the liquid film does not have the compulsory interference of machinery, can not produce the phenomenon of splashing, and molecular distillation device wholly need not mechanical seal, and the security is higher, and overall structure is simple, has reduced the cost of manufacturing and operation maintenance, is fit for extensively promoting.

Description

Molecular distillation device capable of automatically forming film without stirring

Technical Field

The utility model belongs to the technical field of molecular distillation equipment research, and relates to a molecular distillation device capable of automatically forming a film without stirring.

Background

Molecular distillation is to separate liquid mixture under high vacuum condition by utilizing the difference of evaporation rate of each component in the liquid material by utilizing the fact that the average free path of vapor molecules is larger than the distance between the evaporation surface and the condensation surface. Under the same pressure, the common distillation needs to be carried out at the boiling point temperature, and the molecular distillation needs to be carried out at any temperature due to the temperature difference between the cold surface and the hot surface; the liquid phase and the gas phase of the common distillation form opposite equilibrium states, condensation and evaporation are reversible, the molecules escaping from the evaporation surface directly move to the condensation surface, no collision with other molecules occurs in the moving process, the equilibrium state of the liquid phase and the gas phase does not exist, and the process is irreversible; the common distillation is usually accompanied by mechanical movements such as stirring, forced circulation and the like, so that the liquid phase is in a high-temperature state for a long time, and the molecular distillation is required to be paved with a thin layer of evaporation surface, so that the whole evaporation process is very short.

Molecular distillation is mainly classified into falling film type, scraped film type and centrifugal type. Currently, the most widely used is wiped film molecular distillation. The material on the evaporating surface is changed into a liquid film by means of gravity, and in order to improve the efficiency of molecular distillation, a rotary scraping plate made of polytetrafluoroethylene and other materials is arranged in the distiller, so that the thickness of the liquid film on the evaporating surface is smaller, the distribution is more uniform, the updating of the liquid layer on the evaporating surface is accelerated, and the heat transfer and mass transfer efficiency of the material is improved.

However, the prior art has the problems that the liquid distribution is difficult, and the uniform coverage of the evaporation surface by the liquid film is difficult to realize; the liquid is scraped and often tumbled, and the generated mist is often splashed on a condensation surface; the structure is complex, the manufacturing process is complex, and the production technology difficulty is high; because of the existence of mechanical movement, an auxiliary system of a dynamic sealing structure and a dynamic sealing structure is needed, and the vacuum tightness is difficult to ensure; and the manufacturing cost and the later maintenance cost of the whole unit equipment are higher, so that the production cost is increased and the like. Therefore, there is a need to design and develop a molecular distillation apparatus capable of forming a film automatically without stirring, which overcomes the defects of the prior art to meet the practical application requirements.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the molecular distillation device capable of automatically forming a film without stirring.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a molecular distillation device capable of automatically forming a film without stirring, which comprises a barrel, a condensing device and a liquid distributor, wherein the top of the barrel is of a curved surface structure, the middle of the barrel is of a straight surface structure, the top of the barrel is provided with a feed inlet, the curved surface structure is of a smooth curved surface which is diffused by taking the feed inlet as the center, the liquid distributor is coaxially arranged at the position, close to the feed inlet, of the top of the barrel, the condensing device is arranged around the outer surface of the barrel, the top of the condensing device is provided with a liquid inlet, the bottom of the condensing device is provided with a vacuum port, and the liquid inlet and the feed inlet are coaxially arranged.

According to the utility model, through the matching arrangement of the cylinder body, the condensing device and the liquid distributor, the whole evaporation surface of the cylinder body can be uniformly covered with the liquid film, the liquid film is free from mechanical forced interference and splashing phenomenon, the whole molecular distillation device is free from mechanical sealing, the vacuum degree is ensured, the safety is higher, the whole structure is simple, the manufacturing is convenient, the difficulty of the production technology is small, the cost of production, manufacture, operation and maintenance is reduced, and the molecular distillation device is suitable for wide popularization.

The liquid inlet and the liquid inlet are coaxially arranged, the liquid inlet is arranged at the top of the cylinder body, the liquid inlet is arranged at the top of the condensing device, and the liquid inlet are connected through a pipeline.

As a preferable technical scheme of the utility model, the cylinder body comprises an inner cylinder and an outer cylinder which are sequentially covered from inside to outside, the condensing device is arranged on the outer surface of the outer cylinder in a surrounding manner, and the top of the outer cylinder is provided with the liquid distributor.

A heat source inlet is arranged between the inner cylinder and the outer cylinder and close to the bottom of the cylinder, and a heat source outlet is arranged close to the top of the cylinder.

The cylinder body is in a sealing state and is similar to a sealed jacket bell-shaped device, a heat source of the cylinder body can be steam, hot water or hot oil, and high-temperature heat conduction oil can be optimized.

As a preferable technical scheme of the utility model, a baffle plate is fixedly arranged in a cavity between the straight surface part of the inner cylinder and the straight surface part of the outer cylinder, and reinforcing ribs are fixedly arranged in the inner cylinder along the vertical direction of material entering.

In the present utility model, the material of the reinforcing rib and the material of the cylinder are kept the same, and the reinforcing rib may be made of a metal material which is resistant to corrosion and is not deformed at high temperature, for example, stainless steel.

The baffle plate is semi-circular.

In the utility model, the baffle plate is semicircular because of the shape of the attached outer cylinder, so as to guide the liquid.

The outer surface of the straight surface part of the outer cylinder is surrounded by a liquid redistributor.

An overflow groove is formed in one side, close to the outer barrel, of the liquid redistributor, and the liquid redistributor is used for reinforcing the structure of the barrel and preventing uneven distribution of a liquid film on the surface of the barrel.

The liquid redistributor is arranged to prevent the flow break caused by uneven distribution of the cylinder surface, and to strengthen the surface of the cylinder to prevent the deformation caused by overheating.

As a preferred embodiment of the present utility model, the baffle plate is provided with at least two baffle plates, for example, two baffle plates, three baffle plates, four baffle plates, five baffle plates, six baffle plates, etc., but the baffle plate is not limited to the listed values, and other non-listed values in the range of the values are equally applicable; the distance between adjacent baffles is 10 to 50cm, for example, 10cm, 15cm, 20cm, 25cm, 30cm, 35cm, 40cm, 45cm, 50cm, etc., but the present utility model is not limited to the above-mentioned values, and other values not mentioned in the above-mentioned numerical range are applicable.

The number of the reinforcing ribs is at least two, and the distance between every two adjacent reinforcing ribs is 50-100 cm, for example, 50cm, 55cm, 60cm, 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm and 100cm can be used, but the number is not limited to the listed number, and other non-listed numbers in the range of the number are equally applicable; the thickness of the rib is 8mm or more, and for example, 8mm, 10mm, 20mm, 30mm, 40mm, 50mm, etc. may be used, but the thickness is not limited to the values listed, and other values not listed in the range are applicable.

The thickness of the reinforcing rib is more than or equal to 8mm, because the strength and rigidity of the cylinder body (namely the heating system) are enhanced under the condition that the wall thickness is not increased, and if the thickness is not in the range, the inner wall of the cylinder body is deformed in a twisting manner under the high temperature state, and the stress is uneven due to the difference between the inner wall and the outer wall of the cylinder body.

In a preferred embodiment of the present utility model, the liquid redistributors are provided in at least two, and the distance between adjacent liquid redistributors is 50 to 100cm, and for example, 50cm, 55cm, 60cm, 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm, 100cm, etc., but the present utility model is not limited to the above-mentioned values, and other values not mentioned in the above-mentioned value range are applicable.

The thickness of the liquid distributor is 3 to 8mm, and may be, for example, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable; the width of the liquid redistributor may be 3 to 10cm, for example, 3cm, 3.5cm, 4cm, 4.5cm, 5cm, 5.5cm, 6cm, 6.5cm, 7cm, 7.5cm, 8cm, 9cm, 10cm, etc., but the liquid redistributor is not limited to the above-mentioned values, and other values not shown in the above-mentioned range are applicable.

It should be noted that the thickness of the liquid distributor is 3-8 mm and the width is 3-10 cm, because in this size, the thickness of the liquid redistributing and film forming is more uniform and the strength and rigidity of the cylinder are further enhanced, if not in this range, the liquid redistributing is uneven and even forms dripping state and the outer wall of the cylinder is distorted, because the size of the liquid redistributor is too large, the heating area of the cylinder is affected and the liquid forms dripping, and if too small, the uniform distribution of the liquid is affected and the strength and rigidity of the cylinder are reduced.

The width of the overflow vessel is 1 to 3mm, for example, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc., but the width is not limited to the values listed, and other values not listed in the range are equally applicable; the depth of the overflow vessel is 3 to 10mm, and may be, for example, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 9mm, 10mm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are applicable.

It should be noted that the utility model defines the width of the overflow groove to be 1-3 mm and the depth to be 3-10 mm, because under the size, the liquid overflows rapidly, and a uniform liquid film is formed again, if the liquid is not in the range, the liquid can not be accumulated immediately, the uniform liquid film can not be formed immediately, and the quality of the product is affected, because the overflow groove is oversized, a large amount of liquid is accumulated, the heating time is increased, and the uniform film formation of the liquid can not be ensured if the size is undersized.

As a preferable technical scheme of the utility model, the condensing device comprises a jacket tank, and the jacket tank is covered on the outer surface of the cylinder body.

It should be noted that, the condensate used in the condensing device of the utility model can be selected from circulating water, glycol aqueous solution and brine, preferably glycol aqueous solution, because glycol aqueous solution can meet the temperature requirement below zero and can not corrode equipment, and the larger the temperature difference between the heat source and the condensate is more than or equal to 10 ℃, the better the effect is, because the average free path of light molecules can be increased, the steam can be quickly condensed, and the influence of the steam on the vacuum degree of the system is reduced.

The top and the bottom of jacket jar are arc structure, jacket jar middle part is straight shape structure, jacket jar is in straight shape structure be close to the one side surface of inlet is provided with the frozen liquid export, and the opposite side is close to the bottom of straight shape structure is provided with the frozen liquid import.

As a preferable technical scheme of the utility model, a collecting tank and a condensate outlet arranged at the bottom of the collecting tank are arranged in a cavity between the straight structure of the jacket tank and the straight surface part of the cylinder body and close to the vacuum port, and the collecting tank is used for collecting condensate.

The collecting tank is a circular guide groove welded against the wall of the jacketed tank, and the installation position is the bottom position of the jacketed tank.

The bottom of the jacket tank and the liquid inlet are coaxially provided with a discharge outlet.

In a preferred embodiment of the present utility model, the distance between the inner wall of the jacket tank and the outer surface of the cylinder is 5 to 30cm, for example, 5cm, 10cm, 15cm, 20cm, 25cm, 30cm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are equally applicable.

It should be noted that the distance between the inner wall of the jacket tank and the outer surface of the cylinder is 5-30 cm, because the distance is within the average free path of the light molecules, if the distance is not within the range, the quality of the product is damaged, and even an unqualified product is produced, because the light components cannot be timely condensed into liquid, the vacuum degree is damaged, the heating temperature is increased, and the heating time of the liquid is prolonged.

The condensate outlet may be provided with at least one, for example, one, two, three, four, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.

The width of the collecting tank is 1 to 10cm, and may be, for example, 1cm, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm, 10cm, etc., but is not limited to the values recited, and other values not recited in the range of the values are equally applicable.

The height of the collecting tank is 5 to 30cm, and may be, for example, 5cm, 10cm, 15cm, 20cm, 25cm, 30cm, etc., but is not limited to the values recited, and other values not recited in the range are equally applicable.

It should be noted that the utility model defines the width of the collecting tank to be 1-10 cm and the height to be 5-30 cm, because the light component condensate is discharged out of the system in time under the size, if the size is not in the range, the light component condensate can overflow into the heavy component or the heavy component can drop into the light component, because the size of the overflow tank is in the average free path of the light molecule, if the size is too large, part of the heavy component can drop into the overflow tank, and if the size is too small, the light component condensate cannot be discharged out of the system in time.

The shortest straight distance between the collecting tank and the cylinder is 5 to 20cm, for example, 5cm, 10cm, 15cm, 20cm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are equally applicable.

The vacuum port is provided with a vacuum tube, one end of the vacuum tube is arranged in the jacket tank, and the length of one end of the vacuum tube arranged in the jacket tank is 10-30 cm, for example, 10cm, 15cm, 20cm, 25cm, 30cm and the like, but the vacuum port is not limited to the listed values, and other non-listed values in the numerical range are applicable.

It should be noted that, the length of one end of the vacuum tube arranged in the jacket tank is 10-30 cm, because under the size, the system is kept under stable vacuum, if the vacuum tube is not in the range, the stability of the system operation is damaged or even the vacuum equipment is damaged, because the heating area of the whole heating system is reduced due to the oversized, and the evaporation efficiency is reduced; too small can cause heavy components to be drawn into the vacuum apparatus, affecting the stable operation of the vacuum apparatus.

As a preferable technical scheme of the utility model, the liquid distributor comprises a feeding pipe, a first liquid distribution ring and a second liquid distribution ring, and the outer surface of the feeding pipe is sequentially sleeved with the first liquid distribution ring and the second liquid distribution ring.

It should be noted that, the material of the liquid distributor in the present utility model may be a metal material that is not deformed at high temperature, such as stainless steel, where the installation position of the liquid distributor must be located at the center of the highest point of the curved surface of the cylinder, and the center of the liquid distributor and the center of the highest point of the curved surface of the cylinder are on the same vertical line (i.e. coaxially arranged), so that a person skilled in the art can adaptively adjust the model of the liquid distributor according to the actual situation.

The one end along length direction of first liquid distribution ring with the one end along length direction of second liquid distribution ring flushes, the other end of first liquid distribution ring with the top laminating of barrel sets up.

One end of the feeding pipe is arranged on one side, away from the cylinder, of the first liquid distribution ring.

The first liquid distribution ring is circumferentially provided with overflow holes at one side close to the cylinder, and the distribution area of the overflow holes is 0.5 to 0.75 times the total area of the first liquid distribution ring, for example, 0.5 times, 0.55 times, 0.6 times, 0.65 times, 0.7 times, 0.75 times, etc., but not limited to the recited values, and other non-recited values in the range of values are equally applicable.

It should be noted that, the distribution area of the overflow holes is defined to be 0.5-0.75 times of the whole area of the first liquid distribution ring, because the thickness and the flow rate of the liquid film are uniform within the range, if the thickness and the flow rate of the liquid film are not within the range, uneven liquid distribution and even blank areas are formed, and because the area occupied by the overflow holes is too small, the liquid cannot uniformly cover the whole cylinder, and the strength of the liquid distribution ring is affected by the too large overflow holes.

The second liquid distribution ring has a cylindrical structure, and the height of the bottom of the second liquid distribution ring from the outer surface of the cylinder is 0.5 to 3mm, for example, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are applicable.

In the present utility model, the height of the bottom of the second liquid distribution ring from the outer surface of the cylinder is 0.5 to 3mm, and the thickness of the liquid film on the heating surface of the whole cylinder can be controlled by controlling the distance.

In a preferred embodiment of the present utility model, the height of the feed pipe from the end of the first liquid distribution ring to the cylinder is 2 to 8cm, for example, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, etc., but the feed pipe is not limited to the above-mentioned values, and other values not shown in the above-mentioned range are applicable.

The diameter of the overflow hole is 1 to 5mm, and may be, for example, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc., but is not limited to the values recited, and other values not recited in the range of the values are equally applicable.

The minimum linear distance between the overflow hole and the cylinder is 5mm to 2cm, and may be, for example, 5mm, 8mm, 1cm, 1.2cm, 1.4cm, 1.6cm, 1.8cm, or 2cm, but the present utility model is not limited to the above-mentioned values, and other values not mentioned in the above-mentioned numerical range are equally applicable.

It should be noted that the utility model defines the diameter of the overflow hole to be 1-5 mm and the minimum linear distance between the overflow hole and the cylinder to be 5-2 cm, because in this range, the liquid can quickly form a uniform liquid film, if not in this range, uneven liquid distribution or material loss can be caused, because when the material enters the distribution ring, a small amount of splash is inevitably generated, the diameter of the overflow hole is too large or the linear distance is too small, the liquid distribution is uneven, and the diameter of the overflow hole is too small or the linear distance is too large, so that a large amount of liquid is accumulated, and the material is wasted.

Compared with the prior art, the utility model has the beneficial effects that:

Drawings

FIG. 1 is a schematic diagram of a molecular distillation apparatus for stirring and automatic film formation according to one embodiment of the present utility model;

FIG. 2 is a front view of a cartridge in a molecular distillation apparatus for stirring and automatic film formation according to one embodiment of the present utility model;

FIG. 3 is a top view of a cartridge in a molecular distillation apparatus for stirring automated film formation in accordance with one embodiment of the present utility model;

FIG. 4 is a front view of a liquid distributor in a stirred, auto-film-forming molecular distillation apparatus according to one embodiment of the present utility model;

FIG. 5 is a top view of a liquid distributor in a stirred, automated film-forming molecular distillation apparatus according to one embodiment of the present utility model;

FIG. 6 is a front view of a liquid redistributor in a molecular distillation apparatus for stirred, auto-film formation according to one embodiment of the present utility model;

FIG. 7 is a top view of a liquid redistributor in a molecular distillation apparatus for stirred, auto-film formation according to one embodiment of the present utility model;

wherein, 1-cylinder; 2-jacketed tank; 3-a feed inlet; 4-a liquid distributor; 5-a collection tank; 6-a condensate outlet; 7-an outlet; 8-vacuum tube; 9-baffle plate; 10-feeding pipe; 11-a first liquid distribution ring; 12-a second liquid distribution ring; 13-overflow holes; 14-reinforcing ribs; 15-a liquid redistributor; 16-overflow trough.

Detailed Description

It is to be understood that in the description of the present utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

It should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

In a specific embodiment, the utility model provides a molecular distillation device capable of automatically forming a film without stirring, as shown in fig. 1 to 7, the molecular distillation device comprises a cylinder 1, a condensing device and a liquid distributor 4, wherein the top of the cylinder 1 is of a curved surface structure, the middle of the cylinder 1 is of a straight surface structure, a feed inlet 3 is arranged at the top of the cylinder 1, the curved surface structure is of a smooth curved surface which is diffused by taking the feed inlet 3 as a center, the liquid distributor 4 is coaxially arranged at the top of the cylinder 1 close to the feed inlet 3, the condensing device is arranged on the outer surface of the cylinder 1 in a surrounding manner, the top of the condensing device is provided with a liquid inlet, the bottom of the condensing device is provided with a vacuum port, and the liquid inlet and the feed inlet 3 are coaxially arranged.

According to the utility model, through the matching arrangement of the cylinder body 1, the condensing device and the liquid distributor 4, the whole evaporation surface of the cylinder body 1 can be uniformly covered with the liquid film, the liquid film is free from mechanical forced interference and splashing phenomenon, the whole molecular distillation device is free from mechanical sealing, the vacuum degree is ensured, the safety is higher, the whole structure is simple, the manufacturing is convenient, the difficulty of the production technology is small, the cost of production, manufacture, operation and maintenance is reduced, and the molecular distillation device is suitable for wide popularization.

The cylinder body 1 comprises an inner cylinder and an outer cylinder which are sequentially covered from inside to outside, the condensing device is arranged on the outer surface of the outer cylinder in a surrounding manner, and the top of the outer cylinder is provided with a liquid distributor 4; a heat source inlet is arranged between the inner cylinder and the outer cylinder and near the bottom of the cylinder body 1, and a heat source outlet is arranged near the top of the cylinder body 1.

It should be noted that, the cylinder 1 in the utility model is in a sealed state and is similar to a sealed jacket bell-shaped device, the heat source can be steam, hot water or hot oil, and can be high-temperature heat conduction oil, the top of the cylinder 1 in the utility model is an arc surface, the bottom is a plane, the surfaces are all mirror surface sanitary materials, and the whole is in a natural vertical state from top to bottom, so that a liquid film can be ensured to be uniformly spread on the surface of the cylinder 1.

Baffle plates 9 are fixedly arranged in the cavity between the straight surface part of the inner cylinder and the straight surface part of the outer cylinder, and reinforcing ribs 14 are fixedly arranged in the inner cylinder along the vertical direction of material entering. In the present utility model, the material of the reinforcing rib 14 is the same as the material of the cylinder 1, and may be a metal material which is resistant to corrosion and is not deformed at high temperature, for example, stainless steel.

The baffle 9 is semi-circular. In the present utility model, the baffle 9 is semicircular because it conforms to the shape of the outer cylinder to guide the liquid.

The outer surface of the straight surface part of the outer cylinder is surrounded by a liquid redistributor 15; an overflow groove 16 is formed on one side of the liquid redistributor 15 close to the outer cylinder, and the liquid redistributor 15 is used for reinforcing the structure of the cylinder 1 and preventing uneven distribution of a liquid film on the surface of the cylinder 1.

The liquid redistributor 15 is provided in the present utility model to prevent the flow break due to uneven distribution on the surface of the cylinder 1, and to strengthen the surface of the cylinder 1 to prevent deformation due to overheating.

The baffle 9 is provided with at least two, for example, two, three, four, five, six, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable; the distance between adjacent baffles 9 is 10 to 50cm, for example, 10cm, 15cm, 20cm, 25cm, 30cm, 35cm, 40cm, 45cm, 50cm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned range are applicable.

The reinforcing ribs 14 are provided in at least two, and the distance between adjacent reinforcing ribs 14 is 50 to 100cm, for example, 50cm, 55cm, 60cm, 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm, 100cm, but not limited to the recited values, and other non-recited values within the range of the values are equally applicable; the thickness of the rib 14 is 8mm or more, and may be 8mm, 10mm, 20mm, 30mm, 40mm, 50mm, or the like, for example, but is not limited to the values recited, and other values not recited in the range are equally applicable.

The liquid redistributors 15 are provided in at least two, and the distance between adjacent liquid redistributors 15 is 50 to 100cm, and may be, for example, 50cm, 55cm, 60cm, 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm, 100cm, etc., but not limited to the values recited, and other values not recited in the range of values are equally applicable. The thickness of the liquid distributor 4 is 3 to 8mm, and may be, for example, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, etc., but is not limited to the values recited, and other values not recited in the range are equally applicable; the width of the liquid redistributor 15 is 3 to 10cm, and may be, for example, 3cm, 3.5cm, 4cm, 4.5cm, 5cm, 5.5cm, 6cm, 6.5cm, 7cm, 7.5cm, 8cm, 9cm, 10cm, etc., but is not limited to the values recited, and other values not recited in the range are applicable.

The width of the overflow vessel 16 is 1 to 3mm, and may be, for example, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc., but is not limited to the values recited, and other values not recited in the range are equally applicable; the depth of the overflow vessel 16 is 3 to 10mm, and may be, for example, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 9mm, 10mm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned range are applicable.

The condensing device comprises a jacket tank 2, and the jacket tank 2 is covered on the outer surface of the cylinder body 1. The condensate used by the condensing device can be selected from circulating water, glycol aqueous solution and brine, further is glycol aqueous solution, and the larger the temperature difference between the heat source and the condensate is more than or equal to 10 ℃, the better the effect is.

The top and the bottom of the jacket tank 2 are both arc-shaped structures, the middle part of the jacket tank 2 is of a straight structure, a refrigerating fluid outlet is formed in the outer surface of one side of the jacket tank 2, which is close to the liquid inlet, of the straight structure, and a refrigerating fluid inlet is formed in the bottom, which is close to the straight structure, of the other side of the jacket tank 2.

A collecting tank 5 and a condensate outlet 6 arranged at the bottom of the collecting tank 5 are arranged in a cavity between the straight structure of the jacket tank 2 and the straight surface part of the cylinder body 1 and close to the vacuum port, and the collecting tank 5 is used for collecting condensate. The collecting tank 5 in the present utility model is a circular ring guide groove welded to the wall of the jacketed tank 2, and the installation position is the bottom position of the jacketed tank 2. The bottom of the jacket pot 2 and the liquid inlet are coaxially provided with a discharge port 7. The distance between the inner wall of the jacket pot 2 and the outer surface of the cylinder 1 is 5 to 30cm, and may be, for example, 5cm, 10cm, 15cm, 20cm, 25cm, 30cm, etc., but is not limited to the values listed, and other values not listed in the range of values are equally applicable.

The condensate outlet 6 may be provided with at least one, for example, one, two, three, four, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.

The width of the collection tank 5 is 1 to 10cm, and may be, for example, 1cm, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm, 10cm, etc., but is not limited to the values recited, and other values not recited in the range are applicable. The height of the collecting tank 5 is 5 to 30cm, and may be, for example, 5cm, 10cm, 15cm, 20cm, 25cm, 30cm, etc., but is not limited to the values listed, and other values not listed in the range are applicable.

The shortest straight distance between the collecting tank 5 and the cylinder 1 is 5 to 20cm, and may be, for example, 5cm, 10cm, 15cm, 20cm, etc., but is not limited to the values listed, and other values not listed in the numerical range are equally applicable. The vacuum port is provided with a vacuum tube 8, one end of the vacuum tube 8 is provided in the jacket tank 2, and the length of one end of the vacuum tube 8 provided in the jacket tank 2 is 10 to 30cm, for example, 10cm, 15cm, 20cm, 25cm, 30cm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are applicable.

The liquid distributor 4 comprises a feeding pipe 10, a first liquid distribution ring 11 and a second liquid distribution ring 12, and the outer surface of the feeding pipe 10 is sequentially sleeved with the first liquid distribution ring 11 and the second liquid distribution ring 12. It should be noted that, in the present utility model, the material of the liquid distributor 4 may be a metal material that is not deformed at high temperature, for example, stainless steel, the installation position of the liquid distributor 4 must be located at the center of the highest point of the curved surface of the cylinder 1, and the center of the liquid distributor 4 and the center of the highest point of the curved surface of the cylinder 1 are on the same vertical line (i.e. coaxially arranged), so that a person skilled in the art can adaptively adjust the model of the liquid distributor 4 according to practical situations.

One end of the first liquid distribution ring 11 along the length direction is flush with one end of the second liquid distribution ring 12 along the length direction, and the other end of the first liquid distribution ring 11 is attached to the top of the cylinder body 1. One end of a feed pipe 10 is arranged on the side of the first liquid distribution ring 11, which is far away from the cylinder 1. The first liquid distribution ring 11 is provided with the overflow holes 13 in the circumferential direction on the side close to the cylinder 1, and the distribution area of the overflow holes 13 is 0.5 to 0.75 times the entire area of the first liquid distribution ring 11, for example, 0.5 times, 0.55 times, 0.6 times, 0.65 times, 0.7 times, 0.75 times, etc., but not limited to the recited values, and other non-recited values are equally applicable in the range of the values.

The second liquid distribution ring 12 has a cylindrical structure, and the height of the bottom of the second liquid distribution ring 12 from the outer surface of the cylinder 1 is 0.5 to 3mm, for example, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc., but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are applicable. In the present utility model, the height of the bottom of the second liquid distribution ring 12 from the outer surface of the cylinder 1 is 0.5 to 3mm, and the thickness of the liquid film on the heating surface of the entire cylinder 1 can be controlled by controlling the distance.

The height of the feed pipe 10 from the cylinder 1 at one end of the first liquid distribution ring 11 is 2 to 8cm, and may be, for example, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, etc., but not limited to the above-mentioned values, and other values not shown in the above-mentioned range are equally applicable.

The diameter of the overflow hole 13 is 1 to 5mm, and may be, for example, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc., but is not limited to the values listed, and other values not listed in the range of the values are equally applicable. The minimum linear distance between the overflow hole 13 and the cylinder 1 is 5mm to 2cm, and may be, for example, 5mm, 8mm, 1cm, 1.2cm, 1.4cm, 1.6cm, 1.8cm, or 2cm, but the present utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned values are equally applicable.

Example 1

The present embodiment provides a molecular distillation apparatus for stirring-free automatic film formation, wherein:

the molecular distillation device comprises a barrel 1, a condensing device and a liquid distributor 4, wherein the top of the barrel 1 is of a curved surface structure, the middle of the barrel 1 is of a straight surface structure, the top of the barrel 1 is provided with a feed inlet 3, the curved surface structure is of a smooth curved surface which is diffused by taking the feed inlet 3 as a center, the liquid distributor 4 is coaxially arranged at the top of the barrel 1 near the feed inlet 3, the condensing device is arranged on the outer surface of the barrel 1 in a surrounding manner, the top of the condensing device is provided with a liquid inlet, the bottom of the condensing device is provided with a vacuum port, and the liquid inlet and the feed inlet 3 are coaxially arranged.

Baffle plates 9 are fixedly arranged in the cavity between the straight surface part of the inner cylinder and the straight surface part of the outer cylinder, and reinforcing ribs 14 are fixedly arranged in the inner cylinder along the vertical direction of material entering. The baffle 9 is semi-circular. The outer surface of the straight surface part of the outer cylinder is surrounded with a liquid redistributor 15, one side of the liquid redistributor 15 close to the outer cylinder is provided with an overflow groove 16, and the liquid redistributor 15 is used for strengthening the structure of the cylinder 1 and preventing uneven distribution of a liquid film on the surface of the cylinder 1.

Six baffles 9 are provided, and the distance between adjacent baffles 9 is 20cm or the like. The reinforcing ribs 14 are provided in three, and the distance between adjacent reinforcing ribs 14 is 50cm, and the thickness of the reinforcing ribs 14 is 8mm. The liquid redistributors 15 were provided in two, and the distance between adjacent liquid redistributors 15 was 50cm, the thickness of the liquid distributor 4 was 5mm, and the width of the liquid redistributors 15 was 3cm. The width of the isopipe 16 was 2mm, and the depth of the isopipe 16 was 3mm.

The condensing device comprises a jacket tank 2, and the jacket tank 2 is covered on the outer surface of the cylinder body 1. The top and the bottom of the jacket tank 2 are both arc-shaped structures, the middle part of the jacket tank 2 is of a straight structure, a refrigerating fluid outlet is formed in the outer surface of one side of the jacket tank 2, which is close to the liquid inlet, of the straight structure, and a refrigerating fluid inlet is formed in the bottom, which is close to the straight structure, of the other side of the jacket tank 2.

A collecting tank 5 and a condensate outlet 6 arranged at the bottom of the collecting tank 5 are arranged in a cavity between the straight structure of the jacket tank 2 and the straight surface part of the cylinder body 1 and close to the vacuum port, and the collecting tank 5 is used for collecting condensate. The bottom of the jacket pot 2 and the liquid inlet are coaxially provided with a discharge port 7.

The distance between the inner wall of the jacketed tank 2 and the outer surface of the cylinder 1 was 5cm. The number of the collecting tanks 5 is two, and the number of the condensate discharge ports 6 is two. The width of the collecting tank 5 is 5cm, the height of the collecting tank 5 is 6cm, and the shortest linear distance between the collecting tank 5 and the cylinder 1 is 8cm; the vacuum outlet is provided with a vacuum tube 8, one end of the vacuum tube 8 is arranged in the jacket pot 2, and the length of one end of the vacuum tube 8 arranged in the jacket pot 2 is 10cm.

The liquid distributor 4 comprises a feeding pipe 10, a first liquid distribution ring 11 and a second liquid distribution ring 12, and the outer surface of the feeding pipe 10 is sequentially sleeved with the first liquid distribution ring 11 and the second liquid distribution ring 12. One end of the first liquid distribution ring 11 along the length direction is flush with one end of the second liquid distribution ring 12 along the length direction, and the other end of the first liquid distribution ring 11 is attached to the top of the cylinder body 1. One end of a feed pipe 10 is arranged on the side of the first liquid distribution ring 11, which is far away from the cylinder 1. The first liquid distribution ring 11 is circumferentially provided with overflow holes 13 at one side close to the cylinder 1, and the distribution area of the overflow holes 13 is 0.5 times of the whole area of the first liquid distribution ring 11.

The second liquid distribution ring 12 has a cylindrical structure, and the height of the bottom of the second liquid distribution ring 12 from the outer surface of the cylinder 1 is 0.5mm. The feed pipe 10 was disposed at one end of the first liquid distribution ring 11 at a height of 4cm from the cylinder 1, the diameter of the overflow hole 13 was 2mm, and the minimum linear distance between the overflow hole 13 and the cylinder 1 was 1cm.

In summary, the utility model ensures that the whole evaporation surface of the cylinder 1 can be uniformly covered with the liquid film through the matching arrangement of the cylinder 1, the condensing device and the liquid distributor 4, the liquid film does not have mechanical forced interference and can not generate splash phenomenon, the whole molecular distillation device does not need mechanical sealing, the vacuum degree is ensured, the safety is higher, the whole structure is simple, the manufacturing is convenient, the difficulty of the production technology is small, the cost of production, manufacture, operation and maintenance is reduced, and the utility model is suitable for wide popularization.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that fall within the technical scope of the present utility model disclosed herein are within the scope of the present utility model.

Claims

1. The utility model provides a molecular distillation device of automatic film formation without stirring, its characterized in that, molecular distillation device includes barrel, condensing equipment and liquid distributor, the top of barrel is curved surface structure, the middle part of barrel is the straight face structure, the top of barrel is provided with the feed inlet, curved surface structure is for taking the feed inlet is the smooth curved surface of center diffusion, the top of barrel is close to feed inlet department coaxial is provided with liquid distributor, the surface of barrel is provided with around being provided with condensing equipment, condensing equipment's top is provided with the inlet, condensing equipment's bottom is provided with the vacuum mouth, the inlet with the coaxial setting of feed inlet.

2. The molecular distillation device for stirring-free automatic film formation according to claim 1, wherein the cylinder comprises an inner cylinder and an outer cylinder which are sequentially covered from inside to outside, the condensing device is arranged on the outer surface of the outer cylinder in a surrounding manner, and the top of the outer cylinder is provided with the liquid distributor;

3. The molecular distillation device for stirring-free automatic film formation according to claim 2, wherein a baffle plate is fixedly arranged in a cavity between the straight surface part of the inner cylinder and the straight surface part of the outer cylinder, and reinforcing ribs are fixedly arranged in the inner cylinder along the vertical direction of material entering;

the baffle plate is semicircular;

the outer surface of the straight surface part of the outer cylinder is surrounded by a liquid redistributor;

4. The molecular distillation apparatus for stirring-free automatic film formation according to claim 3, wherein at least two baffles are provided, and a distance between adjacent baffles is 10-50 cm;

the reinforcing ribs are provided with at least two reinforcing ribs, the distance between every two adjacent reinforcing ribs is 50-100 cm, and the thickness of each reinforcing rib is more than or equal to 8mm.

5. The molecular distillation apparatus for stirring-free automatic film formation according to claim 3, wherein at least two liquid redistributors are provided, and a distance between adjacent liquid redistributors is 50 to 100cm;

the thickness of the liquid distributor is 3-8 mm, and the width of the liquid redistributor is 3-10 cm;

the width of the overflow groove is 1-3 mm, and the depth of the overflow groove is 3-10 mm.

6. The molecular distillation apparatus for stirring-free automatic film formation according to claim 1, wherein the condensing means comprises a jacketed tank covered on the outer surface of the cylinder;

7. The molecular distillation apparatus for stirring-free automatic film formation according to claim 6, wherein a collecting tank and a condensate outlet arranged at the bottom of the collecting tank are arranged in a cavity between the straight structure of the jacket tank and the straight surface part of the cylinder body and close to the vacuum port, and the collecting tank is used for collecting condensate;

8. The molecular distillation apparatus for stirring-free automatic film formation according to claim 7, wherein a distance between an inner wall of the jacketed tank and an outer surface of the cylinder is 5 to 30cm;

the collecting tank is provided with at least one, and the condensate outlet is provided with at least one;

the width of the collecting tank is 1-10 cm, the height of the collecting tank is 5-30 cm, and the shortest linear distance between the collecting tank and the cylinder body is 5-20 cm;

the vacuum outlet is provided with a vacuum tube, one end of the vacuum tube is arranged in the jacket tank, and the length of one end of the vacuum tube arranged in the jacket tank is 10-30 cm.

9. The molecular distillation apparatus for stirring-free automatic film formation according to claim 1, wherein the liquid distributor comprises a feed pipe, a first liquid distribution ring and a second liquid distribution ring, and the first liquid distribution ring and the second liquid distribution ring are sleeved on the outer surface of the feed pipe in sequence;

one end of the first liquid distribution ring along the length direction is flush with one end of the second liquid distribution ring along the length direction, and the other end of the first liquid distribution ring is attached to the top of the cylinder;

one end of the feeding pipe is arranged at one side, far away from the cylinder, of the first liquid distribution ring;

the first liquid distribution ring is circumferentially provided with overflow holes at one side close to the cylinder body, and the distribution area of the overflow holes is 0.5-0.75 times of the whole area of the first liquid distribution ring;

the second liquid distribution ring is of a cylindrical structure, and the height from the bottom of the second liquid distribution ring to the outer surface of the cylinder body is 0.5-3 mm.

10. The molecular distillation apparatus for stirring-free automatic film formation according to claim 9, wherein the feed pipe is disposed at one end of the first liquid distribution ring at a height of 2 to 8cm from the cylinder;

the diameter of the overflow hole is 1-5 mm;

the minimum linear distance between the overflow hole and the cylinder body is 5 mm-2 cm.