CN215900954U

CN215900954U - Film evaporator with spiral scraper

Info

Publication number: CN215900954U
Application number: CN202121712345.1U
Authority: CN
Inventors: 魏传涛; 肖爱英; 季鹏飞; 王兰民
Original assignee: Shandong Luli Medicine Chemical Equipment Manufacturing Installation Co ltd
Current assignee: Shandong Luli Medicine Chemical Equipment Manufacturing Installation Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-25
Anticipated expiration: 2031-07-27

Abstract

The utility model provides a film evaporator with spiral scrapers, which comprises an evaporator body and a motor arranged at the top of the evaporator body, wherein the outer side of the evaporator body is wrapped with a shell, the side surface of the shell is provided with a heat medium inlet and a heat medium outlet which are communicated with a heat preservation cavity, the top of the evaporation cavity is provided with a separation cylinder, the separation cylinder is provided with a secondary steam outlet, a gas-liquid separator is arranged inside the separation cylinder, the motor is provided with a rotating shaft, the rotating shaft is arranged in the evaporation cavity in a suspending manner, the central axis of the rotating shaft is consistent with the central axis of the evaporation cavity, and the rotating shaft is provided with two groups of spiral scraper devices from top to bottom. According to the technical scheme, the dynamic part and the static part are composed, the motor reducer is arranged on the dynamic part to drive the main shaft to rotate, the distributor and the scraper plate for forming the film of the material are arranged on the main shaft, the equipment runs under high vacuum, the material is distributed in the film forming mode, the evaporation efficiency and speed of the material are greatly increased, the energy is saved, and the efficiency is improved.

Description

Film evaporator with spiral scraper

Technical Field

The utility model relates to the technical field of evaporator equipment, in particular to a thin film evaporator with a spiral scraper.

Background

The film evaporator can be divided into a climbing-film evaporator, a falling-film evaporator and a wiped-film evaporator according to different film forming reasons and different flowing directions, raw material liquid in the wiped-film evaporator flows from top to bottom, a downward-rotating film is formed on the inner wall of an evaporator shell under the action of a scraper and self weight, heat exchange is carried out with the inner wall of the shell, final finished liquid is discharged from the bottom of the evaporator, and secondary steam is discharged from the upper part of the evaporator after gas-liquid separation. The scraper evaporator is widely applied to the fields of distillation, concentration, degassing and the like. The scraper film evaporator is a high-efficiency evaporation and distillation equipment which utilizes the centrifugal force of high-speed rotation to divide liquid materials into uniform liquid films and assists in applying a heating environment. The method is widely applied to the fields of chemical industry, medicine, food, environmental protection and the like. The traditional scraper film evaporator is of a vertical structure and comprises a driving assembly, an evaporation cylinder and a rotor. The evaporation cylinder is arranged at the lower position of the driving assembly and is connected with a rotor, the rotor is arranged in the evaporation cylinder, and the rotor structurally comprises a main shaft and a scraper fixed on the main shaft. When the evaporation device works, the driving assembly drives the main shaft, the main shaft drives the scraper to rotate at a certain speed, liquid materials form a film on the inner wall of the evaporation cylinder under the action of the scraper, a heat medium is introduced into a jacket of the cylinder wall, and the heat medium and the material film exchange heat to strengthen the evaporation process. The existing wiped film evaporator is generally simpler in structure, and has the problems of poor evaporation effect, waste of heat source and high cost due to the fact that the wall of the evaporator easily dissipates heat.

SUMMERY OF THE UTILITY MODEL

In order to make up for the deficiencies of the prior art, the present invention provides a spiral flight thin film evaporator.

The utility model is realized by the following technical scheme: a film evaporator with a spiral scraper comprises an evaporator main body and a motor arranged at the top of the evaporator main body, wherein the outer side of the evaporator main body is wrapped with a shell, a heat preservation cavity is formed between the shell and the evaporator main body, an evaporation cavity is arranged inside the evaporator main body, a heat medium inlet and a heat medium outlet which are communicated with the heat preservation cavity are arranged on the side surface of the shell, the heat medium inlet is arranged at the upper end of the shell, the heat medium outlet is arranged at the lower end of the shell, a separation cylinder is arranged at the top of the evaporation cavity and is provided with a secondary steam outlet, a gas-liquid separator is arranged inside the separation cylinder, a feed inlet is arranged on the side surface of the upper part of the evaporation cavity, a discharge outlet is arranged at the bottom of the evaporation cavity, a rotating shaft is arranged on the motor, the rotating shaft is inserted into the evaporation cavity of the evaporator main body from top to bottom through the upper end of the evaporator main body and is arranged in the evaporation cavity in a suspending manner, and the central axis of the rotating shaft is consistent with the central axis of the evaporation cavity, the rotating shaft is provided with two groups of spiral scraper devices from top to bottom;

spiral scraper means includes the rotary rod with rotation axis fixed connection, the upper end fixed mounting of rotary rod has the first X in two positive and negative directions of X axle to the connecting rod, the lower extreme fixed mounting of rotary rod has the second X in two positive and negative directions of X axle to the connecting rod, the X axle negative terminal of first X to the connecting rod has first Y to the connecting rod towards Y axle negative direction fixed mounting, the X axle positive terminal of first X to the connecting rod has second Y to the connecting rod towards Y axle positive direction fixed mounting, the X axle negative terminal of second X to the connecting rod has third Y to the connecting rod towards Y axle positive direction fixed mounting, the X axle positive terminal of second X to the connecting rod has fourth Y to the connecting rod towards Y axle negative direction fixed mounting, be connected between first Y to the connecting rod and the fourth Y to the connecting rod and install first movable scraper, be connected between second Y to the connecting rod and the third Y to the connecting rod and install second movable scraper.

Preferably, the rotating shaft is further provided with a distributor.

Preferably, the material of the shell is 304 stainless steel.

Preferably, the outer side wall of the separating cylinder is fixedly connected with an ear seat.

As preferred scheme, the bottom of evaporimeter main part passes through flange fixed connection head, and the lower extreme of rotation axis passes through the bearing and is connected with the bearing support rotation that fixes in the head.

Furthermore, the side of the end socket is also provided with a heat-insulating jacket.

Preferably, the outer side walls of the first movable scraper and the second movable scraper are fixedly provided with scraping teeth.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects: the utility model has two parts of dynamic part and static part, the dynamic part has the motor speed reducer to drive the main shaft to run, the main shaft has the distributor and the scraper blade to make the material film, the spiral scraper blade device can guide the material flowing down, it can flow downwards spirally, prolong the heat transfer time, can improve the evaporation effect of the material finally, make the material film better on the inner wall of the evaporator cylinder, the equipment runs under high vacuum, the material film is distributed, greatly increase the evaporation efficiency and speed of the material, save the energy and improve the efficiency at the same time.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

FIG. 2 is a front view of the spiral scraper device;

FIG. 3 is a schematic top view of the spiral flight assembly;

figure 4 is a schematic view of the structure of the scraping teeth,

wherein, the corresponding relationship between the reference numbers and the components in fig. 1 to 3 is:

the evaporator comprises an evaporator body 1, a motor 2, a shell 3, a heat preservation cavity 4, an evaporation cavity 5, a heat medium inlet 6, a heat medium outlet 7, a separation barrel 8, a secondary steam outlet 9, a gas-liquid separator 10, a feed inlet 11, a discharge outlet 12, a rotating shaft 13, a spiral scraper device 14, a distributor 15, a lug seat 16, a seal head 17, a bearing 18, a bearing support 19, a rotating rod 20, a first X-direction connecting rod 21, a second X-direction connecting rod 22, a first Y-direction connecting rod 23, a second Y-direction connecting rod 24, a third Y-direction connecting rod 25, a fourth Y-direction connecting rod 26, a first movable scraper 27, a second movable scraper 28 and scraping teeth 29.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. 24

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

The following specifically describes the spiral-flight thin film evaporator according to the embodiment of the present invention with reference to fig. 1 to 3.

As shown in FIG. 1, the utility model provides a thin film evaporator with a spiral scraper, which comprises an evaporator main body 1 and a motor 2 arranged at the top of the evaporator main body 1, wherein the outer side of the evaporator main body 1 is wrapped with a shell 3, and the shell 3 is made of 304 stainless steel. Form heat preservation chamber 4 between shell 3 and the evaporimeter main part 1, evaporimeter main part 1 is inside to be

evaporation chamber

5, 3 sides of shell are equipped with hot medium import 6 and the hot medium export 7 that are linked together with heat preservation chamber 4, hot medium import 6 is located the 3 upper ends of shell, hot medium export 7 is located the 3 lower extremes of shell, the top of evaporation chamber 5 is equipped with cylinder 8, fixedly connected with ear seat 16 on the lateral wall of cylinder 8, be convenient for fix whole device. Be equipped with secondary steam discharge port 9 on the separator tube 8, the inside vapour and liquid separator 10 that is provided with of separator tube 8, the upper portion side of evaporation chamber 5 is equipped with feed inlet 11, the bottom of evaporation chamber 5 is equipped with discharge gate 12, be equipped with rotation axis 13 on the motor 2, rotation axis 13 from top to bottom inserts in the evaporation chamber 5 of evaporimeter main part 1 through evaporimeter main part 1 upper end, and the suspension is located in evaporation chamber 5, the axis of rotation axis 13 is unanimous with the axis in evaporation chamber 5, rotation axis 13 is equipped with two sets of spiral scraper means 14 from top to bottom, rotation axis 13 still is equipped with distributor 15. The bottom of the evaporator body 1 is fixedly connected with a seal head 17 through a flange, and the lower end of the rotating shaft 13 is rotatably connected with a bearing bracket 19 fixed in the seal head 17 through a bearing 18. The side of the end enclosure 17 is also provided with a heat-insulating jacket for further insulating the bottom material.

As shown in fig. 1 and 2, the spiral scraper device 14 includes a rotating rod 20 fixedly connected to the rotating shaft 13, a first X-direction connecting rod 21 in positive and negative directions of the X-axis is fixedly installed at an upper end of the rotating rod 20, a second X-direction connecting rod 22 in positive and negative directions of the X-axis is fixedly installed at a lower end of the rotating rod 20, a first Y-direction connecting rod 23 is fixedly installed at a negative X-axis end of the first X-direction connecting rod 21 toward the negative Y-axis direction, a second Y-direction connecting rod 24 is fixedly installed at a positive X-axis end of the first X-direction connecting rod 21 toward the positive Y-axis direction, a third Y-direction connecting rod 25 is fixedly installed at a negative X-axis end of the second X-direction connecting rod 22 toward the positive Y-axis direction, a fourth Y-direction connecting rod 26 is fixedly installed at a positive X-axis end of the second X-direction connecting rod 22 toward the negative Y-axis direction, a first movable scraper 27 is installed between the first Y-direction connecting rod 23 and the fourth Y-direction connecting rod 26, a second movable scraper 28 is connected and installed between the second Y-direction connecting rod 24 and the third Y-direction connecting rod 25. The outer side walls of the first movable scraper 27 and the second movable scraper 28 are fixedly provided with scraping teeth 29, and the structure of the scraping teeth is shown in fig. 3.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A film evaporator with a spiral scraper comprises an evaporator main body (1) and a motor (2) arranged at the top of the evaporator main body (1), and is characterized in that the outer side of the evaporator main body (1) is wrapped with a shell (3), a heat preservation cavity (4) is formed between the shell (3) and the evaporator main body (1), an evaporation cavity (5) is arranged inside the evaporator main body (1), a heat medium inlet (6) and a heat medium outlet (7) which are communicated with the heat preservation cavity (4) are arranged on the side surface of the shell (3), the heat medium inlet (6) is arranged at the upper end of the shell (3), the heat medium outlet (7) is arranged at the lower end of the shell (3), a separation cylinder (8) is arranged at the top of the evaporation cavity (5), a secondary steam outlet (9) is arranged on the separation cylinder (8), a gas-liquid separator (10) is arranged inside the separation cylinder (8), a feed inlet (11) is arranged on the side surface of the upper portion of the evaporation cavity (5), a discharge hole (12) is formed in the bottom of the evaporation cavity (5), a rotating shaft (13) is arranged on the motor (2), the rotating shaft (13) is inserted into the evaporation cavity (5) of the evaporator main body (1) from top to bottom through the upper end of the evaporator main body (1) and is suspended in the evaporation cavity (5), the central axis of the rotating shaft (13) is consistent with that of the evaporation cavity (5), and two groups of spiral scraper devices (14) are arranged on the rotating shaft (13) from top to bottom;

spiral scraper means (14) include with rotation axis (13) fixed connection's rotary rod (20), the upper end fixed mounting of rotary rod (20) has the first X in two positive and negative directions of X axle to connecting rod (21), the lower extreme fixed mounting of rotary rod (20) has the second X in two positive and negative directions of X axle to connecting rod (22), the X axle negative terminal of first X to connecting rod (21) has first Y to connecting rod (23) towards Y axle negative direction fixed mounting, the X axle positive terminal of first X to connecting rod (21) has second Y to connecting rod (24) towards Y axle positive direction fixed mounting, the X axle negative terminal of second X to connecting rod (22) has third Y to connecting rod (25) towards Y axle positive direction fixed mounting, the X axle positive terminal of second X to connecting rod (22) has fourth Y to connecting rod (26) towards Y axle negative direction fixed mounting, be connected between first Y to connecting rod (23) and the fourth Y to connecting rod (26) and install first movable scraper (27) And a second movable scraper (28) is connected and installed between the second Y-direction connecting rod (24) and the third Y-direction connecting rod (25).

2. A spiral flight thin film evaporator as claimed in claim 1 wherein the rotating shaft (13) is further provided with a distributor (15).

3. A spiral wound thin film evaporator as claimed in claim 1 in which the shell (3) is 304 stainless steel.

4. A spiral scraper film evaporator as claimed in claim 1, wherein the outer side wall of the separation cylinder (8) is fixedly connected with lug seats (16).

5. The spiral scraper type film evaporator as claimed in claim 1, wherein the bottom of the evaporator body (1) is fixedly connected with a head (17) through a flange, and the lower end of the rotating shaft (13) is rotatably connected with a bearing support (19) fixed in the head (17) through a bearing (18).

6. The spiral scraper film evaporator as claimed in claim 5, wherein the side of the end enclosure (17) is further provided with a heat insulating jacket.

7. The helical flighting thin film evaporator as claimed in claim 1 wherein the first (27) and second (28) flighting outer side walls have fixed flighting teeth (29).