CN219167727U

CN219167727U - Spray falling film evaporator

Info

Publication number: CN219167727U
Application number: CN202320043079.0U
Authority: CN
Inventors: 王康; 姜鑫; 邹德升; 张心安
Original assignee: Yantai Ice Wheel Pressure Vessel Co ltd
Current assignee: Yantai Ice Wheel Pressure Vessel Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-06-13
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a spray falling film evaporator which comprises a distributor, wherein the top of the distributor is fixedly connected and communicated with a reaction tank, the top of the reaction tank is fixedly connected and communicated with a heating chamber, the top of the heating chamber is fixedly connected and communicated with an input pipe, a spray device is fixedly connected between the inner walls of the heating chamber, the top of the spray device is fixedly connected with a connecting block, and the top of the connecting block is fixedly connected with a blocking block. Through spray set and tube bank that set up, under spray set's effect, liquid can fall at the top of circular piece with the form of spraying, later through each circular opening of seting up respectively flow into inside each tube bank, liquid passes through tube bank evenly distributed and comes to flow down and form the film, make heat transfer more even, improve heat transfer effect.

Description

Spray falling film evaporator

Technical Field

The utility model belongs to the technical field of falling film evaporators, and particularly relates to a spray falling film evaporator.

Background

The falling film evaporation is to add the feed liquid from the upper pipe box of the heating chamber of the falling film evaporator, uniformly distribute the feed liquid into each heat exchange pipe through the liquid distribution and film forming device, and uniformly flow in a 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. Although the technology of falling film evaporators is now mature, certain problems remain during their use.

The conventional falling film evaporator has the defects that the whole structure is conventional, heat transfer is easy to be uneven when operation is performed, the heat transfer effect is common, secondary steam is easy to be wasted, and resources are wasted.

Disclosure of Invention

The utility model aims to provide a spray falling film evaporator, which aims to solve the problems that in the prior art, the prior spray falling film evaporator has a conventional integral structure, so that heat transfer is easy to be uneven and secondary steam is easy to be wasted when operation is performed, thereby causing common heat transfer effect and resource waste.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a spray falling film evaporator, includes the distributor, the top fixedly connected with of distributor and intercommunication have the retort, the top fixedly connected with of retort and intercommunication have the heating chamber, the top fixedly connected with and the intercommunication of heating chamber have the input tube, fixedly connected with spray set between the inner wall of heating chamber, spray set's top fixedly connected with connecting block, the top fixedly connected with spacer block of connecting block.

Specifically, pour into the material through the input tube, its in-process that flows can directly touch the separation piece, and flow range can become big, later flow spray set's top, under spray set's effect, liquid can fall with the form of spraying, improves reaction efficiency.

Preferably, a circular block is fixedly connected between the inner walls of the heating chamber, the circular block is positioned below the spraying device, a plurality of uniformly distributed circular openings are formed in one end of the circular block, a plurality of uniformly distributed tube bundles are fixedly connected to the top end of the circular block, and each tube bundle is positioned below each circular opening.

Specifically, liquid can directly fall on the top of circular piece with the form of spraying, later through each circular opening of seting up respectively flow into inside each tube bank, liquid passes through tube bank evenly distributed and gets away to flow down and form the film, through spray set and the tube bank of setting, it is more even to transfer heat, improves the heat transfer effect.

Preferably, a mounting base is fixedly connected between the inner walls of the distributor, and one end of each tube bundle is fixedly connected with the inside of the mounting base.

Specifically, through the installation base that sets up for each tube bank is more stable when using, does benefit to the going on of operation.

Preferably, the side wall of the distributor is fixedly connected and communicated with two mutually far separating pipes, and one end of each separating pipe is fixedly connected and communicated with the same separator.

Specifically, as the material leaves the bottom of the tube bundle, most of the water is evaporated to give a high concentration of condensate, which is converted to steam as the evaporated water separates, some of the concentrated liquid collects in the distributor and drops off, and the hot mixed gas passes through the two separator tubes and enters the separator for cooling and further separation, and the steam rises, which contains most of the heat energy as it enters the system.

Preferably, the top fixedly connected with connecting tube one of separator, connecting tube one's one end fixedly connected with compression fan, compression fan's one end is provided with driving motor, compression fan's bottom fixedly connected with fixed bottom block.

Specifically, the compression fan sucks in these vapors from the separator and recompresses them again, increasing the pressure and temperature of the secondary vapors so that they can be reused like the primary live vapors, maximizing the utilization of resources.

Preferably, one end of the output shaft of the compression fan is fixedly connected with a second connecting pipeline, one end of the second connecting pipeline is fixedly connected with the side wall of the reaction tank, and the inside of the second connecting pipeline is mutually communicated with the inside of the reaction tank.

Specifically, the compressed and heated steam can be sent to the inside of the reaction tank to provide heat energy required by evaporating materials, so that the device can efficiently and economically reuse the latent heat in the secondary steam, and the resource utilization rate is improved.

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

1. through spray set and tube bank that set up, under spray set's effect, liquid can fall at the top of circular piece with the form of spraying, later through each circular opening of seting up respectively flow into inside each tube bank, liquid passes through tube bank evenly distributed and comes to flow down and form the film, make heat transfer more even, improve heat transfer effect.

2. Through the compression fan and the connecting pipe II that set up, the compression fan inhales these vapors from the separator and compresses them again, improves the pressure and the temperature of secondary steam for secondary steam can be used once again like once live steam, and resource utilization maximize, and the steam of compressed and heated can be sent to the retort inside through connecting pipe II, provides the required heat energy of evaporation material, and the latent heat in the secondary steam is used once more to the device is whole can be high-efficient economical, improves resource utilization.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall structure of a part of the present utility model;

FIG. 3 is a schematic view of a partial overall cross-sectional structure of the present utility model.

In the figure: 1. a distributor; 2. a reaction tank; 3. a heating chamber; 4. an input tube; 5. a separation tube; 6. a spraying device; 7. a connecting block; 8. a barrier block; 9. a circular block; 10. a circular opening; 11. a tube bundle; 12. a mounting base; 13. a separator; 14. a first connecting pipeline; 15. a compression fan; 16. fixing the bottom block; 17. a driving motor; 18. and a second connecting pipeline.

Detailed Description

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. 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.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a spray falling film evaporator, includes distributor 1, and the top fixedly connected with of distributor 1 and intercommunication have retort 2, and the top fixedly connected with of retort 2 and intercommunication have heating chamber 3, and the top fixedly connected with of heating chamber 3 and intercommunication have input tube 4, fixedly connected with spray set 6 between the inner wall of heating chamber 3, the top fixedly connected with connecting block 7 of spray set 6, the top fixedly connected with separation piece 8 of connecting block 7.

In this embodiment, pour into the material through input tube 4, it can directly touch separation piece 8 at the flow in-process, and the flow scope can become big, later flows the top of spray set 6, and under spray set 6's effect, liquid can fall with the form of spraying, improves reaction efficiency.

Wherein, fixedly connected with circular piece 9 between the inner wall of heating chamber 3, circular piece 9 are located the below of spray set 6, and a plurality of evenly distributed's circular opening 10 has been seted up to the one end of circular piece 9, and the top fixedly connected with of circular piece 9 a plurality of evenly distributed's tube bank 11, and each tube bank 11 is located the below of each circular opening 10 respectively.

In this embodiment, liquid can directly fall on the top of circle piece 9 with the form of spraying, later through each circular opening 10 of seting up respectively flow into inside each tube bank 11, liquid passes through tube bank 11 evenly distributed to flow down and form the film, through spray set 6 and tube bank 11 of setting up, it is more even to transfer heat, improves the heat transfer effect.

Wherein, fixedly connected with installs base 12 between the inner wall of distributor 1, the inside fixed connection of each tube bank 11 all with installation base 12.

In this embodiment, through the installation base 12 that sets up for each tube bank 11 is more stable when using, does benefit to the going on of operation.

Wherein, the lateral wall fixed connection of distributor 1 just communicates and has two separating tube 5 that keep away from each other, and the one end fixed connection of two separating tube 5 just communicates and has same separator 13.

In this embodiment, as the material leaves the bottom of the tube bundle 11, most of the water is evaporated to give a high concentration of condensed liquid, which is converted to steam as the evaporated water separates the tube bundle 11, some of the condensed liquid in the distributor 1 accumulates and drops off, and the hot mixed gas passes through the two separation tubes 5 and into the separator 13 for cooling and further separation, and the steam rises, which still contains most of the heat energy as it enters the system.

Wherein, the top fixedly connected with connecting tube one 14 of separator 13, the one end fixedly connected with compression fan 15 of connecting tube one 14, the one end of compression fan 15 is provided with driving motor 17, the bottom fixedly connected with fixed bottom block 16 of compression fan 15.

In this embodiment, the compression fan 15 sucks in these vapors from the separator 13 and compresses them again, increasing the pressure and temperature of the secondary vapors so that they can be reused like primary live vapors, maximizing the utilization of resources.

One end of an output shaft of the compression fan 15 is fixedly connected with a second connecting pipeline 18, one end of the second connecting pipeline 18 is fixedly connected with the side wall of the reaction tank 2, and the inside of the second connecting pipeline 18 is mutually communicated with the inside of the reaction tank 2.

In this embodiment, the compressed and heated steam is sent to the inside of the reaction tank 2 to provide heat energy required for evaporating materials, so that the whole device can efficiently and economically reuse latent heat in the secondary steam, and the resource utilization rate is improved.

The working principle and the using flow of the utility model are as follows: the device wholly utilizes the heat energy in the secondary steam again, the problem that the secondary steam is wasted is solved, the material enters the top of the evaporator, liquid is evenly distributed through the tube bundle 11 and flows downwards to form a film, a sealed jacket area is arranged in the distributor 1, high-temperature steam passes through the distributor, the device wholly can be regarded as a heat exchanger, as the hot steam condenses on the surfaces of the tube bundle 11, the latent heat released by the steam is evaporated, the temperature of the material liquid in the tube bundle 11 is increased, when the material leaves the bottom of the tube bundle 11, most of water is evaporated to obtain high-concentration condensed liquid, the evaporated water is converted into steam when the tube bundle 11 is separated by the water, some condensed liquid is gathered and drops down in the distributor 1 at the bottom, the hot mixed gas passes through the two separation tubes 5 and enters the inside of the connecting pipeline one 14, so as to be cooled and further separated, the steam rises, the steam contains most of heat energy when entering the system, the compression fan 15 sucks the steam from the separator 13 and compresses the steam again, the pressure and the temperature of the secondary steam are increased, the primary steam can be converted into the steam when the material leaves the bottom of the tube bundle 11, the water is separated into the steam again, the high-concentration heat energy can be supplied by the electric power through the connecting device, the whole energy can be compressed by the electric energy in the circulating fan, the whole energy can be provided by the energy for the whole heat energy can be compressed and the whole heat energy, and the whole device can be required to be compressed and completely compressed by the heat energy, and the heat energy can be supplied by the heat energy 2, and the whole heat can be compressed by the heat 2, and the whole heat can be cooled and can be cooled by the heat and the whole.

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

1. A spray falling film evaporator comprising a distributor (1), characterized in that: the top fixedly connected with retort (2) of distributor (1) and intercommunication, the top fixedly connected with of retort (2) and intercommunication have heating chamber (3), the top fixedly connected with of heating chamber (3) and intercommunication have input tube (4), fixedly connected with spray set (6) between the inner wall of heating chamber (3), the top fixedly connected with connecting block (7) of spray set (6), the top fixedly connected with separation piece (8) of connecting block (7).

2. A spray falling film evaporator according to claim 1, wherein: circular piece (9) are fixedly connected with between the inner wall of heating chamber (3), circular piece (9) are located the below of spray set (6), circular opening (10) of a plurality of evenly distributed have been seted up to the one end of circular piece (9), the top fixedly connected with of circular piece (9) a plurality of evenly distributed's tube bank (11), each tube bank (11) are located the below of each circular opening (10) respectively.

3. A spray falling film evaporator according to claim 2, wherein: an installation base (12) is fixedly connected between the inner walls of the distributor (1), and one end of each tube bundle (11) is fixedly connected with the inside of the installation base (12).

4. A spray falling film evaporator according to claim 1, wherein: the side wall of the distributor (1) is fixedly connected and communicated with two mutually far separating pipes (5), and one end of each separating pipe (5) is fixedly connected and communicated with the same separator (13).

5. A spray falling film evaporator according to claim 4 wherein: the top fixedly connected with connecting tube one (14) of separator (13), the one end fixedly connected with compression fan (15) of connecting tube one (14), the one end of compression fan (15) is provided with driving motor (17), the bottom fixedly connected with fixed bottom block (16) of compression fan (15).

6. A spray falling film evaporator according to claim 5 wherein: one end of an output shaft of the compression fan (15) is fixedly connected with a second connecting pipeline (18), one end of the second connecting pipeline (18) is fixedly connected with the side wall of the reaction tank (2), and the inside of the second connecting pipeline (18) is mutually communicated with the inside of the reaction tank (2).