CN216320002U

CN216320002U - Internal and external heating film evaporator

Info

Publication number: CN216320002U
Application number: CN202122792564.1U
Authority: CN
Inventors: 毛沁; 毛伟
Original assignee: Wuxi Weiye Chemical Anticorrosive Equipment Factory
Current assignee: Wuxi Weiye Chemical Anticorrosive Equipment Factory
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-19
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses an internal and external heating film evaporator, which comprises an upper end enclosure, a lower end enclosure and an evaporator body, wherein the upper opening of the upper end enclosure of the evaporator is fixedly connected with a motor rack, a motor speed reducer arranged on the motor rack, and an internal evaporation cylinder connected with the driving end of the motor speed reducer, wherein the internal evaporation cylinder comprises an internal evaporation cylinder body, an upper rotating shaft and an upper rotating shaft, wherein the upper rotating shaft and the upper rotating shaft are respectively communicated with two ends of the internal evaporation cylinder body; the upper end enclosure is also provided with a feed inlet and a secondary steam outlet, and the lower end enclosure is provided with a discharge outlet. According to the utility model, the inner evaporation cylinder and the evaporator body are researched and developed to synchronously evaporate the inner side and the outer side, so that the evaporation efficiency is improved; the scraper blade adopts and carries out the rotary type with the rotor and be connected, and when interior evaporation cylinder rotated, the scraper blade also can rotate on the rotor along with inertia, spills the material on the inner wall of evaporimeter body, has promoted the evaporation capacity of material.

Description

Internal and external heating film evaporator

Technical Field

The utility model relates to the technical field of evaporators, and particularly discloses an internal and external heating film evaporator.

Background

The film evaporator is a type of evaporator, and is characterized by that the material liquid can be flowed along the wall of heating tube in the form of film to make heat transfer and evaporation, and its advantages are high heat transfer efficiency, high evaporation speed and short retention time of material, so that it is specially suitable for evaporation of heat-sensitive material. The evaporator has the characteristics of large production capacity, high efficiency, short material heating time and the like, and is suitable for material concentration, evaporation, rectification and the like in the industries of pharmacy, food, petrochemical industry, refinement and the like.

The scraper film evaporator mainly comprises a heating jacket and scrapers, wherein heating steam is introduced into the jacket, the scrapers are arranged on a rotatable shaft, and a small gap is kept between the scrapers and the inner wall of the heating jacket, and the gap is usually 0.5-1.5 mm. In the existing scraper film evaporator, feed liquid is preheated and then added from the upper part of the evaporator along the tangential direction, and under the action of gravity and a rotating scraper, the feed liquid is distributed on an inner wall to form a down-rotating film, and is continuously evaporated and concentrated in the descending process, and the finished liquid is discharged from the bottom. At present, a film evaporator capable of heating inside and outside simultaneously does not exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an internal and external heating film evaporator with high evaporation efficiency.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an internal and external heating film evaporator comprises an upper end enclosure, a lower end enclosure and an evaporator body, wherein the upper opening of the upper end enclosure is fixedly connected with a motor rack, a motor speed reducer arranged on the motor rack and an internal evaporation cylinder connected with the driving end of the motor speed reducer; the upper end enclosure is also provided with a feed inlet and a secondary steam outlet, and the lower end enclosure is provided with a discharge outlet.

Further, the method comprises the following steps: the inner evaporation cylinder comprises an inner evaporation cylinder body, an upper rotating shaft and a lower rotating shaft, wherein the upper rotating shaft and the lower rotating shaft are respectively communicated with two ends of the inner evaporation cylinder body.

Further, the method comprises the following steps: the upper rotating shaft extends out of the upper opening of the upper end enclosure and is connected with the driving end of the motor speed reducer to drive the inner evaporator to rotate in the evaporator.

Further, the method comprises the following steps: the upper rotating shaft is sealed with the upper end enclosure through a mechanical seal; the lower rotating shaft extends out of the opening of the lower end enclosure and is sealed through a mechanical sealing element.

Further, the method comprises the following steps: the axes of the inner evaporation cylinder, the upper rotating shaft and the lower rotating shaft are positioned on the same straight line.

Further, the method comprises the following steps: the inner evaporation cylinder also comprises a plurality of rows of scraper plate components arranged along the length direction of the inner evaporation cylinder.

Further, the method comprises the following steps: the scraper blade subassembly includes along the radial 2 at least fixed columns that set up of interior evaporation barrel, both ends respectively with fixed column fixed connection's rotor, cover and put on the rotor and be fixed in a plurality of scrapers of 2 fixed column spare that link to each other.

Further, the method comprises the following steps: the evaporator body is provided with an upper steam inlet and a lower steam outlet corresponding to the upper steam inlet; the evaporator body is also provided with an exhaust port and a clean discharge port which is arranged corresponding to the exhaust port.

Further, the method comprises the following steps: the cross section of the lower end socket is w-shaped.

Further, the method comprises the following steps: the lower end enclosure is also respectively provided with a lower wind head steam inlet and a lower wind head steam outlet.

The utility model has the beneficial effects that: according to the utility model, the inner evaporation cylinder and the evaporator body are researched and developed to synchronously evaporate the inner side and the outer side, so that the evaporation efficiency is improved; the scraper blade adopts and carries out the rotary type with the rotor and be connected, and when interior evaporation cylinder rotated, the scraper blade also can rotate on the rotor along with inertia, spills the material on the inner wall of evaporimeter body, has promoted the evaporation capacity of material.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the inner evaporation cylinder structure of the present invention;

FIG. 3 is a schematic top view of an evaporator according to the present invention.

Labeled as: 11. a motor reducer; 12. a motor frame; 131. an upper end enclosure; 132. an evaporator body; 133. a lower end enclosure; 141. a secondary steam outlet; 142. a feed inlet; 143. a discharge port; 144. an upper steam inlet; 145. a lower steam outlet; 146. an exhaust port; 147. a discharge port; 15. a mechanical seal; 16. an inner evaporation cylinder; 161. an upper rotating shaft; 162. a lower rotating shaft; 163. an inner evaporation cylinder; 164. fixing a column; 165. a rotor; 166. a scraper.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

As shown in fig. 1 to 3, the inside and outside heating thin film evaporator includes an upper head 131, a lower head 133 and an evaporator body 132, the upper head 131 and the evaporator body 132 are fixed by a plurality of evenly distributed fasteners, the lower head 133 and the evaporator body 132 are also fixed by a plurality of evenly distributed fasteners, and the contact surfaces of the evaporator body 132 on the upper head 131 and the lower head 133 are sealed. The upper opening of the evaporator upper end enclosure 131 is fixedly connected with a motor frame 12, a motor reducer 11 arranged on the motor frame 12, and an inner evaporation cylinder 16 connected with the driving end of the motor reducer 11; the upper end enclosure 131 is also provided with a feed inlet 142 and a secondary steam outlet 141, the lower end enclosure 133 is provided with a discharge outlet 143, the cross section of the lower end enclosure 133 is w-shaped, and the discharge outlet 143 is arranged at the low point of w, so that the material in the evaporator body 132 can be effectively discharged from the thin film evaporator.

On the basis, as shown in fig. 1 and fig. 2, the inner evaporation cylinder 16 includes an inner evaporation cylinder 16 body, an upper rotating shaft 161 and an upper rotating shaft 161, which are respectively communicated with two ends of the inner evaporation cylinder 16 body; the axes of the inner evaporation cylinder 16, the upper rotating shaft 161 and the lower rotating shaft 162 are located on the same straight line. The upper rotating shaft 161 extends out from the upper opening of the upper end enclosure 131 and is connected with the driving end of the motor reducer 11, and when the motor reducer 11 works, the inner evaporator is driven to rotate in the evaporator.

On the basis, as shown in fig. 1, in order to ensure the sealing performance in the evaporator, the upper rotary shaft 161 is sealed with the upper end enclosure 131 through a mechanical seal; the lower rotating shaft 162 extends out of the opening of the lower seal head 133 and is sealed by the mechanical sealing element 15; the material in the evaporator is prevented from being thrown out from the gaps between the upper end enclosure 131 and the upper rotary shaft 161 and between the lower end enclosure 133 and the lower rotary shaft 162 along with the rotation of the inner evaporation cylinder 16.

On the basis, as shown in fig. 1 and fig. 2, the inner evaporation cylinder 16 further comprises a plurality of rows of scraper assemblies arranged along the length direction of the inner evaporation cylinder 16; the scraper component comprises at least 2 fixed columns 164 arranged along the radial direction of the inner evaporation cylinder 16, a rotor 165 with two ends fixedly connected with the fixed columns 164 respectively, and a plurality of scrapers 166 sleeved on the rotor 165 and fixedly connected with the 2 fixed columns 164. In this embodiment, a plurality of rows of scraper assemblies are arranged on the outer wall of the inner evaporation cylinder 16, and the number of the scraper assemblies is set according to the diameter of the inner evaporation cylinder 16; each group of scraper components comprises 3 fixing columns 164, and the rotor 165 and the fixing columns 164 at two ends are fixed through nuts. During installation, the rotor 165 penetrates through the fixing column 164 at one end, then the scraping plates 166 are sleeved on the rotor 165 and penetrate through the fixing column 164 in the middle, then the scraping plates 166 are sleeved on the rotor 165, and the end part of the rotor 165 penetrates through the fixing column 164 and is fixed through a nut; the scraper 166 is of a rotary type, and when the inner evaporation cylinder 16 rotates, the scraper 166 also rotates.

On the basis, as shown in fig. 1, the evaporator body 132 is provided with an upper steam inlet 144 and a lower steam outlet 145 corresponding to the upper steam inlet 144; the evaporator body 132 is further provided with an exhaust port 146 and a purge port 147 provided corresponding to the exhaust port 146. The lower head 133 is also provided with a lower tuyere steam inlet and a lower tuyere steam outlet, respectively.

When the evaporator works, materials are added into the evaporator through the feeding hole 142, the motor speed reducer 11 works to drive the inner evaporation cylinder 16 to rotate, meanwhile, steam is injected into the inner evaporation cylinder 16 and the upper steam inlet 144 through the upper rotating shaft 161, and evaporation efficiency is improved through synchronous evaporation inside and outside; the material that gets into from feed inlet 142, because gravity, centrifugal force and the scraping action of the scraper blade 166 of continuous rotation, the material forms even film of whirling down on evaporimeter body 132 inner wall, inside and outside synchronous evaporation process for the evaporation efficiency of material on evaporimeter body 132 inner wall, and the material after the concentration is discharged from discharge gate 143, and the secondary steam of evaporation is discharged from secondary steam export 141.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An internal and external heating thin film evaporator is characterized in that: the evaporator comprises an upper end enclosure, a lower end enclosure and an evaporator body, wherein the upper opening of the upper end enclosure is fixedly connected with a motor rack, a motor speed reducer arranged on the motor rack, and an inner evaporation cylinder connected with the driving end of the motor speed reducer; the upper end enclosure is also provided with a feed inlet and a secondary steam outlet, and the lower end enclosure is provided with a discharge outlet.

2. An internally and externally heated thin film evaporator as set forth in claim 1 in which: the inner evaporation cylinder comprises an inner evaporation cylinder body, an upper rotating shaft and a lower rotating shaft, wherein the upper rotating shaft and the lower rotating shaft are respectively communicated with two ends of the inner evaporation cylinder body.

3. An internally and externally heated thin film evaporator as set forth in claim 2 wherein: the upper rotating shaft extends out of the upper opening of the upper end enclosure and is connected with the driving end of the motor speed reducer to drive the inner evaporator to rotate in the evaporator.

4. An internally and externally heated thin film evaporator as set forth in claim 3 wherein: the upper rotating shaft is sealed with the upper end enclosure through a mechanical seal; the lower rotating shaft extends out of the opening of the lower end enclosure and is sealed through a mechanical sealing element.

5. An internally and externally heated thin film evaporator as set forth in claim 2 wherein: the axes of the inner evaporation cylinder, the upper rotating shaft and the lower rotating shaft are positioned on the same straight line.

6. An internally and externally heated thin film evaporator as set forth in claim 2 wherein: the inner evaporation cylinder also comprises a plurality of rows of scraper plate components arranged along the length direction of the inner evaporation cylinder.

7. An internally and externally heated thin film evaporator as set forth in claim 6 wherein: the scraper blade subassembly includes along the radial 2 at least fixed columns that set up of interior evaporation barrel, both ends respectively with fixed column fixed connection's rotor, cover and put on the rotor and be fixed in a plurality of scrapers of 2 fixed column spare that link to each other.

8. An internally and externally heated thin film evaporator as claimed in any one of claims 2 to 7 in which: the evaporator body is provided with an upper steam inlet and a lower steam outlet corresponding to the upper steam inlet; the evaporator body is also provided with an exhaust port and a clean discharge port which is arranged corresponding to the exhaust port.

9. An internally and externally heated thin film evaporator as set forth in claim 1 in which: the cross section of the lower end socket is w-shaped.

10. An internally and externally heated thin film evaporator as set forth in claim 1 in which: the lower end enclosure is also respectively provided with a lower wind head steam inlet and a lower wind head steam outlet.