CN212680094U

CN212680094U - Multiple-effect falling film evaporator

Info

Publication number: CN212680094U
Application number: CN202020672142.3U
Authority: CN
Inventors: 张琦
Original assignee: Wuxi Xishan Xuelang Chemical Equipment Co Ltd
Current assignee: Wuxi Xishan Xuelang Chemical Equipment Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-03-12
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a multiple-effect falling film evaporation ware, include: the utility model has the advantages of simple structure and convenient use, by arranging the evaporation tube which is transversely arranged, when in use, the stock solution in the preheating bin enters the evaporation tube through the transmission tube for evaporation and concentration, then the heated evaporation concentration in the evaporation tube flows to the right to be collected in the collection bin, so that the evaporation concentration of the stock solution in the descending process in the evaporation tube is solved, this results in the problem that the stock solution is not heated completely because the stock solution is heated for a short time and is not uniformly heated.

Description

Multiple-effect falling film evaporator

Technical Field

The utility model relates to an evaporation concentration equipment technical field specifically is a multiple-effect falling film evaporation ware.

Background

The falling film evaporator is characterized in that feed liquid is added from an upper channel box of a heating chamber of the falling film evaporator, is uniformly distributed into each heat exchange tube through a liquid distribution and film forming device, and flows down along the inner wall of each heat exchange tube in a uniform film shape. In the flowing-down process, the shell-pass heating medium is heated and vaporized, the generated steam and the liquid phase enter a separation chamber of an evaporator together, the steam and the liquid are fully separated, the steam enters a condenser for condensation or enters a next-effect evaporator as the heating medium, the evaporation and concentration process of the feed liquid is completed, an evaporation tube in the existing falling-film evaporator is vertically placed, and the original liquid is evaporated and concentrated in the falling process in the evaporation tube, so that the heating time of the original liquid is short, the original liquid is heated unevenly, and the evaporation and concentration of the original liquid are not thorough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multiple-effect falling film evaporator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-effect falling film evaporator comprising: a bottom plate for bearing the whole device, a preheating bin for preheating stock solution, an evaporation bin for heating and evaporating the stock solution, an evaporation pipe for evaporating and concentrating the stock solution and a collection bin for collecting the concentrated base solution, wherein the preheating bin for preheating and shunting the stock solution is arranged above the bottom plate, a feed pipe for conveying the stock solution is fixedly arranged on the left side wall surface of the preheating bin, the feed pipe penetrates through the left side wall surface of the preheating bin, four transmission pipes for transmitting and shunting the stock solution are fixedly arranged on the lower wall surface of the preheating bin, the lower wall surface of the preheating bin is fixedly connected with the bottom plate through support columns, the evaporation bin is arranged on the right side of the preheating bin, the evaporation bin is a rectangular hollow box body, a heat inlet pipe for feeding in heating steam is fixedly arranged on the lower wall surface of the evaporation bin, the heat inlet pipe penetrates through the lower wall surface of the evaporation bin, a heat outlet pipe for discharging the heated steam is fixedly arranged on the upper wall surface of the evaporation bin, the heat outlet pipe penetrates through the upper wall surface of the evaporation bin, four evaporation pipes are arranged in the evaporation bin, each evaporation pipe is a hollow cylinder, the hollow part of each evaporation pipe penetrates through the left wall surface and the right wall surface, the four evaporation pipes are sequentially arranged from top to bottom and are inclined towards the right lower part, the four evaporation pipes respectively penetrate through the left wall surface and the right wall surface of the evaporation bin, the four transmission pipes respectively extend into the four evaporation pipes, bearing seats capable of enabling the evaporation pipes to freely rotate are respectively and fixedly arranged on the left wall surface and the right wall surface in the evaporation bin, rotating gears are respectively and fixedly arranged on the four evaporation pipes, adjacent rotating gears are mutually meshed, a main gear is arranged in the evaporation bin, the main gear is a transverse gear, the main gear is meshed with the upper rotating gear, a rotating column is fixedly arranged above the main gear, the rotating column penetrates through the upper wall surface of the evaporation bin, rotating electrical machines passes through motor frame and the outside top wall fixed connection of evaporation storehouse, rotating electrical machines below output shaft passes through shaft coupling and rotation post fixed connection, evaporation storehouse right side wall fixed mounting collection storehouse, and the evaporating pipe passes collection storehouse left side wall, the interior heated evaporative concentration back of evaporating pipe flows right and collects the storehouse is inside, collect the discharging pipe that storehouse right side wall fixed mounting is used for discharging the concentrate, collect the inside below wall fixed mounting in storehouse to the guide plate, collect storehouse and evaporation storehouse respectively through support column and bottom plate fixed connection.

Preferably, the bottom plate is a rectangular flat plate made of steel.

Preferably, the rotating electric machine is an inverter motor.

Preferably, the deflector is a rectangular flat plate with an upper wall surface inclined downward.

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

1. the utility model discloses simple structure, convenient to use, through setting up the evaporating pipe of transversely placing, the stock solution in the storehouse of preheating during the use enters into the evaporating pipe through the transmission pipe and carries out the evaporative concentration, then flows right after the evaporation concentration that is heated in the evaporating pipe and collects inside the storehouse of collection, solved the stock solution and carried out the evaporative concentration in the decline process in the evaporating pipe, lead to stock solution heated time short and heated inhomogeneous thus make stock solution evaporative concentration incomplete problem;

2. the utility model discloses still through setting up rotatable evaporating pipe and rotating electrical machines simultaneously, start rotating electrical machines and drive the evaporating pipe and rotate, make the stoste in the evaporating pipe can be faster evaporate the concentration.

Drawings

Fig. 1 is a front cross-sectional view of a multi-effect falling-film evaporator of the present invention;

fig. 2 is a top view of the multi-effect falling film evaporator of the present invention;

fig. 3 is a right-side cross-sectional view of the multi-effect falling-film evaporator of the present invention.

In the figure: 1. a base plate; 2. preheating a bin; 3. an evaporation bin; 4. a collection bin; 5. a support pillar; 6. a feed pipe; 7. a conveying pipe; 8. discharging the heat pipe; 9. an evaporation tube; 10. a bearing seat; 11. a rotating gear; 12. a main gear; 13. a rotating electric machine; 14. rotating the column; 15. a discharge pipe; 16. a baffle; 17. and a heat inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a multi-effect falling film evaporator comprising: a bottom plate 1 for bearing the whole device, a preheating bin 2 for preheating stock solution, an evaporation bin 3 for heating and evaporating the stock solution, an evaporation pipe 9 for evaporating and concentrating the stock solution and a collection bin 4 for collecting the concentrated base solution, wherein the bottom plate 1 is a rectangular flat plate made of steel, the preheating bin 2 for preheating and distributing the stock solution is arranged above the bottom plate 1, a feed pipe 6 for conveying the stock solution is fixedly arranged on the left side wall surface of the preheating bin 2, the feed pipe 6 penetrates through the left side wall surface of the preheating bin 2, four conveying pipes 7 for conveying and distributing the stock solution are fixedly arranged on the lower side wall surface of the preheating bin 2, the lower side wall surface of the preheating bin 2 is fixedly connected with the bottom plate 1 through supporting columns 5, the right side of the preheating bin 2 is provided with the evaporation bin 3, the evaporation bin 3 is a rectangular hollow box body, a heat inlet pipe 17 for feeding heating steam is fixedly arranged on the lower side wall surface of the evaporation bin 3, the heat inlet pipe 17 penetrates through the wall surface below the evaporation bin 3, the heat outlet pipe 8 for discharging heated steam is fixedly arranged on the wall surface above the evaporation bin 3, the heat outlet pipe 8 penetrates through the wall surface above the evaporation bin 3, when in use, the heated steam enters the evaporation bin 3 through the heat inlet pipe 17 to be heated, and the steam upwards floats and is discharged through the heat outlet pipe 8, high-temperature steam can be continuously conveyed into the evaporation bin 3, so that the high temperature in the evaporation bin 3 is ensured, four evaporation pipes 9 are arranged inside the evaporation bin 3, the evaporation pipes 9 are hollow cylinders made of heat-conducting metal materials, the hollow parts of the evaporation pipes 9 penetrate through the left wall surface and the right wall surface, the four evaporation pipes 9 are sequentially arranged from top to bottom, the four evaporation pipes 9 are inclined towards the lower right, the four evaporation pipes 9 respectively penetrate through the left wall surface and the right wall surface of the evaporation bin 3, the four transmission pipes 7 respectively extend into the four evaporation pipes 9, when in use, the raw liquid in the preheating bin 2 enters the evaporation pipes 9 through the transmission pipes 7, bearing seats 10 which can enable the evaporating pipes 9 to rotate freely are respectively and fixedly arranged on the left wall surface and the right wall surface inside the evaporating bin 3, rotating gears 11 are respectively and fixedly arranged on the four evaporating pipes 9, the adjacent rotating gears 11 are meshed with each other, a main gear 12 is arranged in the evaporating bin 3, the main gear 12 is a transverse gear, the main gear 12 is meshed with an upper rotating gear 11, a rotating column 14 is fixedly arranged above the main gear 12, the rotating column 14 penetrates through the wall surface above the evaporating bin 3, a rotating motor 13 which drives the evaporating pipes 9 to rotate is arranged above the rotating column 14, the rotating motor 13 is a variable frequency motor, the rotating motor 13 is fixedly connected with the upper wall surface outside the evaporating bin 3 through a motor frame, an output shaft below the rotating motor 13 is fixedly connected with the rotating column 14 through a coupler, when the evaporating bin is used, the rotating motor 13 is started to drive the evaporating pipes 9 to rotate, so that raw liquid in the evaporating pipes 9, storehouse 4 is collected to 3 right side wall fixed mounting in evaporating bin, and evaporating pipe 9 passes and collects 4 left side walls in the storehouse, it collects storehouse 4 inside collection to flow right after the evaporative concentration that is heated in the evaporating pipe 9, collect 4 right side walls fixed mounting in storehouse and be used for the discharging pipe 15 of discharge concentrate, collect 4 inside below wall fixed mounting in storehouse and install guide plate 16, guide plate 16 is the rectangle flat board that an upper wall case descends to incline, guide plate 16 can be with getting into the concentrate water conservancy diversion in collecting bin 4 to discharging pipe 15 during the use, collect storehouse 4 and evaporating bin 3 respectively through support column 5 and bottom plate 1 fixed connection.

The working principle is as follows: the utility model discloses a during the use, carry the stoste and preheat the reposition of redundant personnel in preheating storehouse 2, heating steam heats in entering into evaporation storehouse 3 through advancing heat pipe 17 simultaneously, and vapour upwards wafts and discharges through heat pipe 8, can be continuous carry high temperature steam in evaporation storehouse 3, thereby guarantee the high temperature in the evaporation storehouse 3, stoste in preheating storehouse 2 carries out evaporative concentration in entering into evaporating pipe 9 through transmission pipe 7, start rotating electrical machines 13 and drive evaporating pipe 9 and rotate, stoste in making evaporating pipe 9 can be the thermally equivalent can be more quick evaporative concentration that carries on, flow right after the evaporative concentration that is heated in last evaporating pipe 9 and collect storehouse 4 inside and collect, and is simple structure, high durability and convenient use, good use effect's advantage.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. A multiple effect falling film evaporator characterized by: the method comprises the following steps: bear bottom plate (1) of whole device, be used for carrying out preheating storehouse (2) of preheating to the stoste, be used for carrying out the evaporation storehouse (3) of heating evaporation to the stoste, be used for carrying out evaporation concentration's evaporating pipe (9) and be used for collecting concentrated back base liquid collection storehouse (4), bottom plate (1) top sets up can preheat the stoste with just shunting preheating storehouse (2), one row of transmission pipe (7) that are used for transmission and reposition of redundant personnel stoste of wall fixed mounting in storehouse (2) below, preheating storehouse (2) right side sets up evaporating storehouse (3), evaporating storehouse (3) is a rectangle hollow box, evaporating storehouse (3) inside sets up one row of evaporating pipe (9), evaporating pipe (9) are a hollow cylinder, and evaporating pipe (9) hollow position pierces through left and right wall, one row of evaporating pipe (9) are from last down arranging in proper order, evaporating pipe (9) all incline to the right side below, wall about evaporating pipe (9) pierce through evaporating storehouse (3) respectively, transmission pipe (7) stretch into evaporating pipe (9) in, the inside wall is fixed mounting respectively about evaporating storehouse (3) can let evaporating pipe (9) free rotation's bearing frame (10), evaporating storehouse (3) right side wall fixed mounting collection storehouse (4), and evaporating pipe (9) pass and collect storehouse (4) left side wall.

2. A multi-effect falling film evaporator according to claim 1 wherein: the preheating bin (2) is characterized in that a feeding pipe (6) used for conveying stock solution is fixedly installed on the left side wall surface of the preheating bin (2), and the feeding pipe (6) penetrates through the left side wall surface of the preheating bin (2).

3. A multi-effect falling film evaporator according to claim 1 wherein: the wall surface below the preheating bin (2) is fixedly connected with the bottom plate (1) through a support column (5), and the collecting bin (4) and the evaporation bin (3) are fixedly connected with the bottom plate (1) through the support column (5) respectively.

4. A multi-effect falling film evaporator according to claim 1 wherein: the wall surface below the evaporation bin (3) is fixedly provided with a heat inlet pipe (17) for feeding heating steam, the heat inlet pipe (17) penetrates through the wall surface below the evaporation bin (3), the wall surface above the evaporation bin (3) is fixedly provided with a heat outlet pipe (8) for discharging the heated steam, and the heat outlet pipe (8) penetrates through the wall surface above the evaporation bin (3).

5. A multi-effect falling film evaporator according to claim 1 wherein: respectively fixed mounting rotating gear (11) on evaporating pipe (9), and adjacent rotating gear (11) intermeshing, set up master gear (12) in evaporating storehouse (3), master gear (12) are a horizontal gear, master gear (12) and top rotating gear (11) meshing, master gear (12) top fixed mounting rotates post (14), and rotate post (14) and pass evaporating storehouse (3) top wall, it sets up drive evaporating pipe (9) and carries out pivoted rotating electrical machines (13) to rotate post (14) top, rotating electrical machines (13) are through motor frame and evaporating storehouse (3) outside top wall fixed connection, rotating electrical machines (13) below output shaft passes through shaft coupling and rotates post (14) fixed connection.

6. A multi-effect falling film evaporator according to claim 1 wherein: the collection bin (4) right side wall fixed mounting is used for discharging the discharging pipe (15) of concentrate, collects the inside below wall fixed mounting in bin (4) and installs guide plate (16).

7. A multi-effect falling film evaporator according to claim 1 wherein: the number of the evaporation tubes (9) is more than four, and the number of the transmission tubes (7) is in one-to-one correspondence with the number of the evaporation tubes (9).