CN219440698U - Glass lining thin film evaporator - Google Patents

Abstract

The utility model discloses a glass lining thin film evaporator, which comprises a separation section and an evaporation section; the separation section is cylindrical, an outer sealing bearing is arranged in the center of the top of the separation section, a rotating shaft is fixed in the outer sealing bearing, a material pipe is arranged in the rotating shaft in a hollow mode, the material pipe extends upwards to the outside of the rotating shaft, a shield is arranged above the outer sealing bearing, a belt is arranged in the shield, the rotating shaft is connected with a motor through the belt, a steam outlet is formed in the top of the side wall of the separation section, and a gas-liquid separator is arranged in the separation section; the utility model discloses a concentrated solution evaporator, including evaporation section, scraper blade, connecting rod, scraper blade, evaporation section top is being linked together the separation section, evaporation section bottom diameter reduces gradually and connects L concentrate pipe, be equipped with the scraper blade in the evaporation section, scraper blade rotation direction upstream face is equipped with the feed liquid export, link to each other through the connecting rod between scraper blade and the pivot, the evaporation section is equipped with the intermediate layer.

Description

Glass lining thin film evaporator

Technical Field

The utility model belongs to the technical field of thin film evaporators, and particularly relates to a glass lining thin film evaporator.

Background

The film evaporator (Thin film evaporator) is a type of evaporator and is characterized in that the material liquid flows in a film shape along the wall of the heating tube to transfer and evaporate, and has the advantages of high heat transfer efficiency, high evaporation speed and short material residence time, so that the film evaporator is particularly suitable for evaporating heat-sensitive substances. According to the reasons of film formation and different flow directions, the film formation device can be divided into three types of film lifting evaporators, falling film evaporators and film scraping evaporators. In the production process of thioglycollic acid, a thin film evaporator is required to be used for secondary concentration, because the thioglycollic acid aqueous solution is subjected to primary concentration and then has higher density, poor fluidity and poor film forming property, so that the evaporation effect is poor, and in addition, the corrosiveness of the thioglycollic acid aqueous solution is higher, the existing thin film evaporator cannot meet the concentration requirement, so that a novel thin film evaporator with good corrosion resistance and capability of promoting the film formation of a thick solution is required.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a reduced pressure distiller which has the advantages of simple structure and low cost, and can effectively improve the distillation speed and the production efficiency by increasing the surface area of liquid.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a glass lining film evaporator comprises a separation section and an evaporation section; the separation section is cylindrical, an outer sealing bearing is arranged in the center of the top of the separation section, a rotating shaft is fixed in the outer sealing bearing, a material pipe is arranged in the rotating shaft in a hollow mode, the material pipe extends upwards to the outside of the rotating shaft, a shield is arranged above the outer sealing bearing, a belt is arranged in the shield, the rotating shaft is connected with a motor through the belt, a steam outlet is formed in the top of the side wall of the separation section, and a gas-liquid separator is arranged in the separation section; the utility model discloses a concentrated solution evaporator, including evaporation section, scraper blade, connecting rod, scraper blade, evaporation section top is being linked together the separation section, evaporation section bottom diameter reduces gradually and connects L concentrate pipe, be equipped with the scraper blade in the evaporation section, scraper blade rotation direction upstream face is equipped with the feed liquid export, link to each other through the connecting rod between scraper blade and the pivot, the evaporation section is equipped with the intermediate layer.

Preferably, the separation section and the evaporation section and the parts of the components, which are contacted with the materials, are covered with glass lining.

Preferably, the material pipe is provided with an electromagnetic valve, the material pipe is connected with the rotating shaft through an inner sealing bearing, and the inner sealing bearing is respectively positioned at the top of the highest connecting rod and below the lowest connecting rod.

Preferably, a tube sealing bearing is arranged outside the bottommost part of the concentrated solution tube and is connected with the rotating shaft.

Preferably, the feed liquid outlet is connected with the connecting rod, the connecting rod is hollow, a feed liquid hole is arranged between the connecting rod and the rotating shaft, and the feed liquid hole is also arranged on the feed pipe with the corresponding height.

Preferably, the scraping plates are in a straight shape and are symmetrically arranged in the evaporation section by taking the rotating shaft as a symmetrical axis, and are 0.5-2cm away from the top of the evaporation section and the diameter reducing part and 0.1-0.5cm away from the arc-shaped outer wall of the evaporation section.

Preferably, the top of the interlayer is provided with a heating medium outlet, and the bottom of the interlayer is provided with a heating medium inlet.

Compared with the prior art, the utility model has the beneficial effects that: firstly, the design is reasonable, the corrosion resistance of the glass lining coating is increased, and the glass lining coating is suitable for thioglycollic acid production; secondly, compared with the existing film evaporator, the film evaporator has the advantages that liquid with poor fluidity can be uniformly formed in the evaporation section by arranging a plurality of feed liquid outlets, so that the problem of evaporation capacity reduction caused by accumulation of liquid with poor fluidity on the scraping plate due to incomplete film formation is avoided; thirdly, the rotating shaft is supported by the pipe sealing bearing, so that the scraping plate can bear larger resistance, and the scraper is more suitable for concentrating liquid with poor fluidity and high density.

Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present disclosure, and other drawings may be obtained from the provided drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is a schematic view of an evaporator according to the present utility model;

FIG. 2 is a schematic top view of an evaporator pan of the present utility model;

FIG. 3 is a partial schematic view of an evaporator pan of the present utility model.

In the figure: 1. the separation section, 2, the evaporation section, 3, the material pipe, 4, the electromagnetic valve, 5, the outer sealing bearing, 6, the gas-liquid separator, 7, the heating medium outlet, 8, the feed liquid outlet, 9, the connecting rod, 10, the pipe sealing bearing, 11, the shield, 12, the motor, 13, the belt, 14, the steam outlet, 15, the inner sealing bearing, 16, the interlayer, 17, the scraping plate, 18, the rotating shaft, 19, the feed liquid hole, 20, the heating medium inlet, 21 and the concentrated liquid pipe.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1-3, the present utility model provides a technical solution: a glass lining film evaporator, which comprises a separation section 21 and an evaporation section; the separation section 21 and the evaporation section are both covered with glass lining, the separation section 21 is cylindrical, an outer sealing bearing 5 is arranged in the center of the top of the separation section 21, a rotating shaft 18 is fixed in the outer sealing bearing 5, a material pipe 3 is arranged in the rotating shaft 18 in a hollow mode, the material pipe 3 is provided with an electromagnetic valve 4, the material pipe 3 is connected with the rotating shaft 18 through an inner sealing bearing 15, the inner sealing bearing 15 is respectively positioned at the top of the highest connecting rod 9 and below the lowest connecting rod 9, the material pipe 3 extends upwards to the outside of the rotating shaft 18, a shield 11 is arranged above the outer sealing bearing 5, a belt 13 is arranged in the shield 11, the belt 13 connects the rotating shaft 18 with a motor 12, a steam outlet 14 is arranged at the top of the side wall of the separation section 21, and a gas-liquid separator 6 is arranged in the separation section 21; the evaporation section top is communicated with a separation section 21, the diameter of the bottom of the evaporation section is gradually reduced and is connected with an L-shaped concentrated solution pipe 21, a pipe sealing bearing 10 is arranged at the bottom of the concentrated solution pipe 21 and is connected with a rotating shaft 18, a scraping plate 17 is arranged in the evaporation section, a feed liquid outlet 8 is arranged on the upstream surface of the rotating direction of the scraping plate 17, the feed liquid outlet 8 is connected with a connecting rod 9, the connecting rod 9 is hollow, a feed liquid hole 19 is arranged between the connecting rod 9 and the rotating shaft 18, a feed liquid hole 19 is also arranged on a material pipe 3 with a corresponding height, the scraping plate 17 is connected with the rotating shaft 18 through the connecting rod 9, the scraping plate 17 is in a straight shape and is symmetrically arranged in the evaporation section by taking the rotating shaft 18 as a symmetrical axis, the distance between the top of the evaporation section and the diameter reducing part is 0.8cm, the distance between the bottom of the scraping plate and the arc-shaped outer wall of the evaporation section is 0.2cm, an interlayer 16 is arranged at the evaporation section, a heating medium outlet 7 is arranged at the top of the interlayer 16, and a heating medium inlet 20 is arranged at the bottom.

Working principle: the material pipe 3 is connected with the thioglycollic acid aqueous solution, heating medium is introduced into the heating medium inlet 20, the temperature of the heating medium is set to 105 ℃, the motor 12 is started, the motor 12 drives the belt 13 to enable the rotating shaft 18 to rotate, the material pipe 3 is kept motionless, the electromagnetic valve 4 of the material pipe 3 is started, material liquid enters the connecting rod 9 through the material night holes of the material pipe 3 and the connecting rod 9, flows out of contact with the inner wall of the evaporation section through the material liquid outlet 8 and is scraped uniformly by the scraping plate 17 to carry out evaporation concentration on the inner wall of the evaporation section, the concentrated material liquid flows out through the concentrate pipe 21, evaporated vapor is discharged through the vapor outlet 14 after passing through the enterprise separator, and excessive high fluidity difference of the liquid to be concentrated is effectively prevented from being accumulated on the scraping plate 17 through being provided with a plurality of material liquid outlets 8, and film formation is facilitated.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a glass lining thin film evaporator, includes separation section (1) and evaporation section (2), its characterized in that: the separation section (1) is cylindrical, an outer sealing bearing (5) is arranged in the center of the top of the separation section (1), a rotating shaft (18) is fixed in the outer sealing bearing (5), a material pipe (3) is arranged in the rotating shaft (18) in a hollow mode, the material pipe (3) extends upwards to the outside of the rotating shaft (18), a shield (11) is arranged above the outer sealing bearing (5), a belt (13) is arranged in the shield (11), the belt (13) connects the rotating shaft (18) with a motor (12), a steam outlet (14) is formed in the top of the side wall of the separation section (1), and a gas-liquid separator (6) is arranged in the separation section (1); the utility model discloses a separation section, evaporation zone (2) top is being linked together separation section (1), evaporation section (2) bottom diameter reduces gradually and connects L type concentrate pipe (21), be equipped with scraper blade (17) in evaporation section (2), scraper blade (17) direction of rotation upstream face is equipped with feed liquid export (8), link to each other through connecting rod (9) between scraper blade (17) and pivot (18), evaporation section (2) are equipped with intermediate layer (16).

2. A glass lined thin film evaporator according to claim 1, wherein: and glass lining covers the parts of the separation section (1) and the evaporation section (2) and the parts of the components, which are contacted with materials.

3. A glass lined thin film evaporator according to claim 1, wherein: the material pipe (3) is provided with an electromagnetic valve (4), the material pipe (3) is connected with a rotating shaft (18) through an inner sealing bearing (15), and the inner sealing bearing (15) is respectively positioned at the top of the highest connecting rod (9) and below the lowest connecting rod (9).

4. A glass lined thin film evaporator according to claim 1, wherein: the bottom of the concentrated liquid pipe (21) is provided with a pipe sealing bearing (10) which is connected with the rotating shaft (18).

5. A glass lined thin film evaporator according to claim 1, wherein: the feed liquid outlet (8) is connected with the connecting rod (9), the connecting rod (9) is hollow, a feed liquid hole (19) is arranged between the connecting rod (9) and the rotating shaft (18), and the feed liquid hole (19) is also arranged on the feed pipe (3) with the corresponding height.

6. A glass lined thin film evaporator according to claim 1, wherein: the scraping plates (17) are in a straight shape and are symmetrically arranged in the evaporation section (2) by taking the rotating shaft (18) as a symmetrical axis, and are 0.5-2cm away from the top and the diameter reducing part of the evaporation section (2) and 0.1-0.5cm away from the arc-shaped outer wall of the evaporation section (2).

7. A glass lined thin film evaporator according to claim 1, wherein: the top of the interlayer (16) is provided with a heating medium outlet (7), and the bottom of the interlayer is provided with a heating medium inlet (20).