CN219023263U

CN219023263U - Falling film evaporator for vitamin C production

Info

Publication number: CN219023263U
Application number: CN202223044012.3U
Authority: CN
Inventors: 张国忠; 于海; 庄兆丰
Original assignee: YIXING JIANGSHAN BIOTECHNOLOGY CO Ltd
Current assignee: YIXING JIANGSHAN BIOTECHNOLOGY CO Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-05-16
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses a falling film evaporator for vitamin C production, which belongs to the technical field of vitamin C production equipment and particularly relates to a falling film evaporator for vitamin C production, comprising a shell and a distribution plate, wherein a liquid inlet main pipe is arranged at the top of the shell, a liquid inlet branch pipe is arranged at one end of the liquid inlet main pipe and is arranged at the top of an inner cavity of the shell, the distribution plate is arranged on the side wall of the inner cavity of the shell, and a plurality of distribution holes are formed in the distribution plate, and the pipe orifices of the liquid inlet branch pipes are correspondingly arranged above the distribution holes.

Description

Falling film evaporator for vitamin C production

Technical Field

The utility model relates to the technical field of vitamin C production equipment, in particular to a falling film evaporator for vitamin C production.

Background

The falling film evaporator is characterized in that feed liquid is added from a pipe box on a heating chamber of the falling film evaporator, is uniformly distributed into each heat exchange pipe through a liquid distribution and film forming device, and flows in a uniform film shape from top to bottom under the action of gravity, vacuum induction and air flow. In the flowing process, the vapor and the liquid phase generated by the heating vaporization of the shell side heating medium enter the separation chamber of the evaporator together, the vapor and the liquid phase are fully separated, the vapor enters the condenser for condensation (single-effect operation) or enters the next-effect evaporator for being used as the heating medium, thereby realizing multi-effect operation, and the liquid phase is discharged from the separation chamber. The evaporation and concentration device is widely used for evaporating and concentrating water or organic solution in the industries of medicine, food, chemical industry, light industry and the like, has high evaporation capacity, energy conservation and consumption reduction, low operation cost and can ensure that materials are not denatured in the evaporation process.

In the prior art, in the process of vitamin C production, a falling film evaporator is required to be adopted for concentration and evaporation, so that the concentration of vitamin C is improved, when the vitamin C liquid falls down, the phenomenon of uneven falling film distribution is easy to occur, and sometimes the phenomenon of empty pipe in a heating pipe also occurs, so that the production effect and efficiency of vitamin C are affected.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

The present utility model has been made in view of the above and/or problems occurring in the prior art vitamin C production facilities.

Therefore, the utility model aims to provide the falling film evaporator for the vitamin C production, which can facilitate the uniform distribution of the falling film of the vitamin C liquid in the process of using the falling film evaporator for the vitamin C production, ensure that the liquid is fully contacted with heat, and improve the production efficiency of the vitamin C.

In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

the utility model provides a vitamin C production falling film evaporator, includes casing and distribution dish, the top of casing is provided with the feed liquor and is responsible for, the one end that the feed liquor was responsible for is provided with the feed liquor and divides the pipe, the feed liquor divides the pipe to set up at the top of casing inner chamber, the distribution dish sets up the lateral wall at the casing inner chamber, be provided with the distribution hole on the distribution dish, a plurality of the mouth of pipe department that the feed liquor divides the pipe corresponds to be installed in the top of distribution hole, the bottom of distribution hole is provided with corresponding feed hopper, the lateral wall of casing inner chamber is provided with up tube sheet and down tube sheet, all be provided with the tube hole on up tube sheet and the down tube sheet, the embedding is installed the heating pipe in the tube hole, be provided with the circulation chamber in the heating pipe, the bottom and the circulation chamber link up of feed hopper, the bottom of casing is provided with the drain pipe, the lateral wall of casing is provided with the blast pipe.

As a preferred embodiment of the falling film evaporator for the production of vitamin C according to the utility model, wherein: the inner wall of the heating pipe is provided with an anti-corrosion layer, the anti-corrosion layer is adhered to the inner wall of the heating pipe, and the anti-corrosion layer is made of polyethylene anti-corrosion materials.

As a preferred embodiment of the falling film evaporator for the production of vitamin C according to the utility model, wherein: the bottom of the lower tube plate is provided with a vapor-liquid separation cavity.

As a preferred embodiment of the falling film evaporator for the production of vitamin C according to the utility model, wherein: the junction of upper tube sheet and lower tube sheet is provided with the heating chamber, the heating pipe sets up in the heating chamber.

As a preferred embodiment of the falling film evaporator for the production of vitamin C according to the utility model, wherein: the heating pipe is internally embedded with a heating rod, the top of the heating rod is connected with the upper tube plate, and the bottom of the heating rod is connected with the lower tube plate.

As a preferred embodiment of the falling film evaporator for the production of vitamin C according to the utility model, wherein: and a steam valve is arranged on the exhaust pipe.

Compared with the prior art: in this application, 1. Through the feed liquor main pipe with vitamin C liquid delivery to the feed liquor branch pipe, through the feed liquor branch pipe with liquid evenly distributed to corresponding distribution hole in, respectively carry corresponding feed hopper through the distribution hole in, the circulation intracavity of each heating pipe is evenly distributed to leading-in liquid through the feed hopper, even membranous top-down flows, in-process, by the heating medium heating vaporization of heating pipe inner wall, make vitamin C evaporation concentration, carry out gas-liquid separation through the gas-liquid separation room, steam after the separation is discharged through the blast pipe, the vitamin C thick liquid after the separation is discharged through the drain pipe, consequently, in the in-process of vitamin C production use falling film evaporator, be convenient for vitamin C liquid falling film distribution uniformity, make the abundant contact heat of liquid, vitamin C production efficiency and effect have been improved, 2. Through anticorrosive coating, the anticorrosive effect of heating pipe inner wall has been improved, thereby vitamin C production quality has been improved, the life of pipeline has been prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:

FIG. 1 is a schematic diagram of a falling film evaporator for producing a dimension C of the present utility model;

FIG. 2 is a cross-sectional view of a construction of a falling film evaporator for producing a dimension C in accordance with the present utility model;

FIG. 3 is a schematic view of a heating rod of a falling film evaporator for producing vitamin C according to the present utility model;

fig. 4 is a schematic view of an anticorrosive coating of a falling film evaporator for vitamin C production according to the present utility model.

In the figure: 100 shells, 110 liquid inlet main pipes, 120 liquid inlet branch pipes, 200 distribution discs, 210 distribution holes, 220 feeding funnels, 230 upper tube plates, 240 lower tube plates, 250 tube holes, 260 heating pipes, 270 circulation cavities, 280 liquid outlet pipes, 290 exhaust pipes, 300 anticorrosive layers, 400 vapor-liquid separation cavities, 500 heating cavities, 600 heating rods and 700 vapor valves.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

The utility model provides a falling film evaporator for vitamin C production, referring to fig. 1-4, comprising a shell 100 and a distribution plate 200, wherein the top of the shell 100 is provided with a liquid inlet main pipe 110, one end of the liquid inlet main pipe 110 is provided with a liquid inlet branch pipe 120, the liquid inlet branch pipe 120 is arranged at the top of the inner cavity of the shell 100, the distribution plate 200 is arranged on the side wall of the inner cavity of the shell 100, the distribution plate 200 is provided with a distribution hole 210, the pipe orifices of a plurality of liquid inlet branch pipes 120 are correspondingly arranged above the distribution hole 210, the bottom of the distribution hole 210 is provided with a corresponding feeding funnel 220, the side wall of the inner cavity of the shell 100 is provided with an upper pipe plate 230 and a lower pipe plate 240, the upper pipe plate 230 and the lower pipe plate 240 are respectively provided with a pipe hole 250, a heating pipe 260 is embedded and arranged in the pipe hole 250, the bottom of the feed hopper 220 is communicated with the circulation cavity 270, the bottom of the shell 100 is provided with a liquid outlet pipe 280, the side wall of the shell 100 is provided with an exhaust pipe 290, specifically, vitamin C liquid is conveyed to the liquid inlet branch pipe 120 through the liquid inlet main pipe 110, the liquid is uniformly distributed into the corresponding distribution holes 210 through the liquid inlet branch pipe 120, the liquid is respectively conveyed into the corresponding feed hopper 220 through the distribution holes 210, the liquid is led into the circulation cavity 270 of each heating pipe 260 through the feed hopper 220 and uniformly distributed into the circulation cavity 270 of each heating pipe 260, the uniform membranous flow from top to bottom is realized, in the flowing process, the vitamin C is heated and vaporized by the heating medium on the inner wall of the heating pipe 260, the vitamin C is evaporated and concentrated, the gas-liquid separation is realized through the gas-liquid separation chamber, the separated vapor is discharged through the exhaust pipe 290, and the separated vitamin C concentrated liquid is discharged through the liquid outlet pipe 280.

The bottom of the lower tube plate 240 is provided with a vapor-liquid separation cavity 400, and in particular, the vapor-liquid separation cavity 400 is convenient for separating liquid and vapor and is convenient for operation.

The junction of the upper tube plate 230 and the lower tube plate 240 is provided with a heating chamber 500, and the heating tube 260 is arranged in the heating chamber 500, specifically, the heating chamber 500 is convenient for evaporating and concentrating the vitamin C liquid, and the evaporating effect is improved.

The heating pipe 260 is embedded with a heating rod 600, the top of the heating rod 600 is connected with the upper tube plate 230, the bottom of the heating rod 600 is connected with the lower tube plate 240, and specifically, the heating rod 600 is convenient for improving the falling film evaporation efficiency of the vitamin C.

The steam valve 700 is arranged on the exhaust pipe 290, and specifically, the flow and the flow velocity of the gas in the exhaust pipe 290 are conveniently adjusted through the steam valve 700, so that the operation is convenient.

Referring to fig. 1 to fig. 4, a falling film evaporator for producing a dimension C according to the present embodiment is specifically used as follows: the vitamin C liquid is conveyed to the liquid inlet branch pipe 120 through the liquid inlet main pipe 110, the liquid is uniformly distributed to the corresponding distribution holes 210 through the liquid inlet branch pipe 120, the liquid is respectively conveyed to the corresponding feeding funnels 220 through the distribution holes 210, the liquid is led into the circulation cavity 270 of each heating pipe 260 by the feeding funnels 220 and is uniformly distributed to the circulation cavity 270 of each heating pipe 260, the liquid uniformly flows from top to bottom in a membranous mode, in the flowing process, the liquid is heated and gasified by the heating medium on the inner wall of the heating pipe 260, the vitamin C is evaporated and concentrated, finally falls into the gas-liquid separation chamber to perform gas-liquid separation, the separated steam is discharged through the exhaust pipe 290, and the separated vitamin C concentrated liquid is discharged through the liquid outlet pipe 280.

Fig. 4 is a schematic structural diagram of a second embodiment of a falling film evaporator for producing vitamin C in the present utility model, referring to fig. 4, unlike the above embodiment, the inner wall of the heating tube 260 is provided with an anti-corrosion layer 300, the anti-corrosion layer 300 is adhered to the inner wall of the heating tube 260, the anti-corrosion layer 300 is made of polyethylene anti-corrosion material, specifically, the anti-corrosion effect of the inner wall of the heating tube 260 is improved by the anti-corrosion layer 300, thereby improving the production quality of vitamin C and prolonging the service life of the pipeline.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A falling film evaporator for vitamin C production is characterized in that: including casing (100) and distribution dish (200), the top of casing (100) is provided with feed liquor and is responsible for (110), the one end that feed liquor was responsible for (110) is provided with feed liquor and is responsible for (120), feed liquor is responsible for (120) and is provided with tube hole (250) on the top of casing (100) inner chamber, distribution dish (200) set up the lateral wall in casing (100) inner chamber, be provided with distribution hole (210) on distribution dish (200), a plurality of the mouth of pipe department of feed liquor is responsible for (120) is corresponding to be installed in the top of distribution hole (210), the bottom of distribution hole (210) is provided with corresponding feed hopper (220), the lateral wall in casing (100) inner chamber is provided with up tube sheet (230) and down tube sheet (240), all be provided with tube hole (250) on up tube sheet (230) and the down tube sheet (240), heating pipe (260) are installed in the embedding in tube (260), be provided with circulation chamber (270) on distribution dish (200), the bottom of feed hopper (220) is with the top of distribution hole (210), the bottom of feed hopper (210) is provided with blast pipe (280), bottom (100).

2. A dimension C producing falling film evaporator of claim 1, wherein: the inner wall of the heating pipe (260) is provided with an anti-corrosion layer (300), the anti-corrosion layer (300) is adhered to the inner wall of the heating pipe (260), and the anti-corrosion layer (300) is made of polyethylene anti-corrosion materials.

3. A dimension C producing falling film evaporator of claim 1, wherein: the bottom of the lower tube plate (240) is provided with a vapor-liquid separation cavity (400).

4. A dimension C producing falling film evaporator of claim 1, wherein: a heating cavity (500) is arranged at the joint of the upper tube plate (230) and the lower tube plate (240), and the heating tube (260) is arranged in the heating cavity (500).

5. A dimension C producing falling film evaporator of claim 1, wherein: the heating pipe (260) is internally embedded with a heating rod (600), the top of the heating rod (600) is connected with the upper tube plate (230), and the bottom of the heating rod (600) is connected with the lower tube plate (240).

6. A dimension C producing falling film evaporator of claim 1, wherein: a steam valve (700) is provided on the exhaust pipe (290).