CN220618566U - Electrodialysis concentration equipment - Google Patents

Abstract

The utility model relates to an electrodialysis sewage treatment technical field discloses electrodialysis concentration equipment, including electrodialysis groove, enrichment facility and condensing equipment, enrichment facility includes a plurality of vaporization devices that are used for carrying out circulation vaporization concentration to the dense water that produces in the electrodialysis groove, and any vaporization device all communicates with the boiler that is used for carrying high temperature steam to the vaporization device in, the top intercommunication of vaporization device has the steam pipe, the exhaust end of steam pipe with condensing equipment communicates; the utility model adopts steam to supply heat and vaporization, can realize electrodialysis and concentration vaporization at the same time, and improves concentration efficiency; meanwhile, after vaporization and secondary concentration, the residual concentrated water is reduced, and the harmless treatment pressure of the concentrated solution is greatly reduced.

Description

Electrodialysis concentration equipment

Technical Field

The utility model relates to the technical field of electrodialysis, in particular to electrodialysis equipment for sewage treatment, and particularly relates to electrodialysis concentration equipment.

Background

Electrodialysis concept: a method of separating different solute particles (e.g., ions) using the permselective properties of a semipermeable membrane is known as dialysis. When dialysis is performed under the action of an electric field, the phenomenon in which charged solute particles (e.g., ions) in a solution migrate through a membrane is called electrodialysis. The technology of purifying and separating substances by electrodialysis, called electrodialysis method, is a new technology developed in the 50 s of the 20 th century, is used for sea water desalination initially, is now widely used in chemical industry, light industry, metallurgy, paper making, and medical industry, and is particularly important for preparing pure water and treating three wastes in environmental protection, such as acid-base recovery, electroplating waste liquid treatment, and recovery of useful substances from industrial waste water.

Electrodialysis state of the art: the existing technology for treating industrial wastewater or ionized water with a certain concentration by electrodialysis is very mature, and the difference between different electrodialysis technologies or equipment mainly consists in that the treatment cost is different due to different treatment efficiency and effect and different energy consumption, but the working principle of the technology in the dialysis step is basically the same, and the difference mainly consists in that the design of the equipment structure is different and can influence the treatment efficiency and energy consumption and the occupied area are greatly different.

Referring to prior art publication number CN205856076U, an integrated bipolar membrane electrodialysis device is provided, which comprises a bracket, wherein an electric control cabinet, a salt chamber water tank, an acid chamber water tank, an alkali chamber water tank, a pole chamber water tank, a salt chamber water pump, an acid chamber water pump, an alkali chamber water pump, a pole chamber water pump, a bipolar membrane stack and the like are arranged in the bracket, and the technology is mainly used for carrying out stepwise treatment through different water chambers, so that the space occupation of the device is larger.

In order to continuously pursue the low cost of electrodialysis and the effect of concentration and desalination, the electrodialysis technology is continuously updated, and an electrodialysis system for continuous concentration and desalination is disclosed as publication No. CN204324962U, so that the concentration cost is further reduced, and the concentration efficiency is improved.

Disclosure of Invention

In order to solve the problem of high-efficiency treatment of metal ions in industrial wastewater by adopting electrodialysis, the application provides electrodialysis concentration equipment capable of being used for replacing the existing electrodialysis equipment, electrodialysis and circulating vaporization separation are adopted, and condensation recovery is used for solving the problem of ion concentration of industrial wastewater, and meanwhile fresh water generated by electrodialysis is repeatedly used for condensation and vaporization thermal circulation, so that the resource utilization cost is greatly reduced; furthermore, the utility model can fully utilize the installation equipment in different environments, saves the occupation of physical space, has low requirement on the installation environment and has good practicability.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

the electrodialysis concentration equipment comprises an electrodialysis tank, a concentration device and a condensation device, wherein the concentration device comprises a plurality of vaporization devices for circularly vaporizing and concentrating concentrated water generated in the electrodialysis tank, any vaporization device is communicated with a boiler for conveying high-temperature steam into the vaporization device, the top of the vaporization device is communicated with a steam pipe, and the exhaust end of the steam pipe is communicated with the condensation device;

the condensing device comprises a fresh water pool for containing fresh water generated in the electrodialysis tank, a plurality of layers of meshed grids are horizontally or obliquely arranged in the fresh water pool, and the exhaust end of the steam pipe penetrates through any layer of meshed grids and extends to the bottom part of the fresh water pool;

the bottom of the boiler is provided with a heater, the boiler is also communicated with a water supplementing pipe, and the water supplementing pipe is communicated with the fresh water pool.

Preferably, the vaporizing device comprises a closed outer shell, the top of the outer shell is communicated with the steam pipe, a spray disc, a plurality of groups of radiating fin groups which are installed at intervals are sequentially arranged in the outer shell from top to bottom, any radiating fin group consists of a plurality of radiating fins which are installed in an inclined manner, and a containing cavity is arranged at the bottom; the position of the outer shell, which is close to the top, is provided with a water inlet pipeline for communicating the spray disc with the concentrated water in the electrodialysis tank, and the position of the outer shell, which is at the bottom, is provided with a water outlet pipeline for re-delivering the unvaporized concentrated water into the water inlet pipeline.

Preferably, the water inlet pipeline comprises a first pipeline communicated with any concentrated water chamber of the electrodialysis tank, a water inlet branch pipe communicated with the spray disc, and a pump machine connected with the first pipeline and the water inlet branch pipe and driving concentrated water to flow to the vaporizing device; the water outlet pipeline comprises a water outlet branch pipe which is arranged at the bottom of the outer shell and communicated with the accommodating cavity at the bottom of the vaporizing device, any water outlet branch pipe is communicated with a third pipeline, and a second pipeline which is communicated with the first pipeline, and a liquid storage tank for temporarily storing redundant concentrated water is arranged between the second pipeline and the third pipeline.

Preferably, the boiler is respectively communicated with a circulating radiating pipe which is arranged in an S-shaped mode in the vaporizing device through a steam supply pipe and a steam return pipe, and a circulating pump is arranged on the steam supply pipe or the steam return pipe.

Preferably, a water pump is further arranged between the water supplementing pipe and the fresh water pool.

Preferably, the electrodialysis tank comprises diaphragms alternately arranged in the tank body for filtering anions/cations, and the tank body is divided into a plurality of fresh water chambers and concentrated water chambers which are alternately arranged by the diaphragms, and a first polar water chamber and a second polar water chamber which are distributed at two ends of the tank body;

any one of the concentrated water chambers is communicated with a first pipeline, a fresh water pipe is arranged at the bottom of any one of the concentrated water chambers, any one of the fresh water pipes is communicated with a fifth pipeline, and the fifth pipeline is communicated with the fresh water tank; the bottoms of the first polar water chamber and the second polar water chamber are respectively communicated with a fourth pipeline through a first polar water pipe and a second polar water pipe, and the fourth pipeline is communicated with the first pipeline.

Preferably, a plurality of said vaporisation devices are in communication with each other in series with said vapour supply and return conduits. The serial connection mode means that two adjacent vaporization devices are communicated with each other, and the two vaporization devices at the extreme end are respectively communicated with the steam supply pipe and the steam return pipe to form a circulation passage through which steam can flow through each vaporization device. The communication mode has the advantages of full circulation and uniform heating, and the steam circulation can be realized by only one driving pump for a single circulation. The disadvantage is that all the vaporization devices are required to be turned on no matter the size of the vaporization treatment amount, a part of the vaporization devices cannot be turned off, the application environment with larger fluctuation of the vaporization demand cannot be adapted, and otherwise, the optimal energy consumption configuration cannot be achieved.

Preferably, a plurality of said vaporisation means are adapted to communicate with said vapour supply and return pipes respectively. The mode is similar to parallel arrangement, namely, each vaporization device is respectively communicated with the steam supply pipe and the steam return pipe, and the connection mode has the advantages that all or part of vaporization devices can be flexibly selected to participate in work according to the actual vaporization amount, and the vaporization devices can be flexibly adjusted, so that the vaporization device has stronger adaptability compared with serial connection.

Of course, the two modes can be combined, namely, on the serial connection mode, the valves between two adjacent vaporization devices are increased to carry out on-off control, then the vaporization devices are connected in pairs through the bypass pipeline with the valves, different combinations are formed by opening and closing different valves, the vaporization devices are switched between different modes of serial connection and parallel connection, and all and part of the vaporization devices participate in vaporization, so that efficiency can be considered, actual energy consumption and cost investment can be considered, and the vaporization concentration scene application of different working conditions and different demands can be adapted.

The beneficial effects are that:

1. the utility model adopts steam to supply heat and vaporization, can realize electrodialysis and concentration vaporization at the same time, and improves concentration efficiency; meanwhile, after vaporization and secondary concentration, the residual concentrated water is reduced, and the harmless treatment pressure of the concentrated solution is greatly reduced.

2. The utility model adopts the plurality of groups of inclined radiating fins to effectively relieve and even avoid the problem that the vaporization is not continuous and even causes the backflow of concentrated water due to the air blocking phenomenon in the vaporization process.

3. The utility model initiates a zero-energy consumption fresh water pool condensation mode without any condensation equipment, separates the gas into small bubbles through the porous partition plate and performs multi-layer separation, so that the vapor is fully contacted with the fresh water for cooling and condensation, and the condensed fresh water is subjected to secondary cooling for use, thereby realizing the recycling of resources and achieving the technical effects of energy consumption and cost reduction.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is an isometric view of the structure of the present utility model.

Fig. 2 is an isometric view of another visual structure of fig. 1.

Fig. 3 is a schematic view of the internal structure of the vaporizing device.

In the figure: 1-an electrodialysis cell; a 101-separator; 102-a fresh water chamber; 103-a concentrated water chamber; 104-a first pole water pipe; 105-second water pipe; 106-a fourth pipeline; 107-fresh water pipe; 108-a fifth pipeline; 109-in the first pole water chamber; 110-a second water chamber; 2-a first pipeline; 21-a second line; 22-a third pipeline; 3-pumping; 4-a water inlet branch pipe; 5-a vaporization device; 51-an outer shell; 52-spraying a disc; 53-heat radiating fin group; 6-a water discharge branch pipe; 7-a liquid storage tank; 8-steam pipe; 9-a fresh water tank; 10-a water discharge pipe; 11-a heater; 12-a boiler; 13-a water supplementing pipe; 14-a steam supply pipe; 15-a steam return pipe; 151-circulation pump.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship that a product of the application conventionally puts in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Example 1:

the electrodialysis concentration device comprises an electrodialysis tank 1, a concentration device and a condensation device, wherein the concentration device comprises a plurality of evaporation devices 5 for circularly evaporating and concentrating concentrated water generated in the electrodialysis tank 1, any one evaporation device 5 is communicated with a boiler 12 for conveying high-temperature steam into the evaporation device 5, the top of the evaporation device 5 is communicated with a steam pipe 8, and the exhaust end of the steam pipe 8 is communicated with the condensation device; the electrodialysis tank 1 may be configured by adopting an existing electrodialysis tank, and the concentrated water and the fresh water are led out through pipelines respectively, the concentrated water flows to the vaporizing device 5 for vaporization concentration, and the fresh water flows to the fresh water tank 9 for subsequent condensation cooling and is used for supplying the boiler 12 to generate steam.

The condensing device has the function that the condensed water passes through the vaporizing device 5 to generate vapor, and the vapor is liquefied by reducing the temperature to form fresh water, so that the purpose of further concentrating the condensed water and separating the fresh water is achieved; the device comprises a fresh water pond 9 for containing fresh water generated in the electrodialysis tank 1, wherein a plurality of layers of meshed grids are horizontally or obliquely arranged in the fresh water pond 9, and the exhaust end of the steam pipe 8 penetrates through any layer of meshed grids and extends to the bottom position of the fresh water pond 9; the shape of the holes in the perforated grid can be long, circular, or any other regular or irregular shape, so long as the maximum diameter or width of the holes in the grid is not more than 4mm, the number of layers of the perforated grid is not less than 3, the interval between two adjacent layers is not less than 100mm, high-temperature steam discharged from the steam pipe 8 enters the fresh water pond 9 along with the increase of pressure after overcoming the water pressure in the fresh water pond 9, is divided by the perforated grid, forms a plurality of small bubbles and gradually moves upwards, and is contacted with the water in the fresh water pond 9 to be rapidly cooled and liquefied so as to achieve the condensation effect. Because the steam temperature is higher, the temperature can be quickly reduced after the steam is divided into small bubbles, the bubbles can gradually become smaller, and the bubbles can be further divided and smaller after each layer of porous grid is passed through, and the steam is liquefied into liquid water to be mixed into fresh water in the fresh water tank 9 along with the cooling, so that the water tank is used for subsequent use, and the recycling of resources is realized.

The bottom of the boiler 12 is provided with a heater 11, the boiler 12 is also communicated with a water supplementing pipe 13, and the water supplementing pipe 13 is communicated with the fresh water pond 9. The working principle of the boiler 12 is the same as that of the existing steam boiler, and mainly, high-temperature steam is generated for heating the vaporizing device 5, concentrated water is vaporized in a heat transfer mode, the steam is taken away, ions are further concentrated, and the effect of concentrating and reducing the difficulty and pressure of subsequent desalination is achieved.

Example 2:

the embodiment is further designed based on embodiment 1, and particularly referring to fig. 1-3 of the specification, the vaporization device 5 includes a closed outer shell 51, the top of the outer shell 51 is communicated with the steam pipe 8, a spray tray 52, a plurality of groups of radiating fin groups 53 installed at intervals are sequentially arranged in the outer shell 51 from top to bottom, and any radiating fin group 53 is composed of a plurality of radiating fins installed obliquely, and a containing cavity located at the bottom; the outer shell 51 is provided with a water inlet pipeline for communicating the spray disc 52 with the concentrated water in the electrodialysis tank 1 at a position close to the top, and the outer shell 51 is provided with a water outlet pipeline for re-feeding the unvaporized concentrated water into the water inlet pipeline at a position at the bottom. After the concentrated water enters the vaporizing device 5, the concentrated water is uniformly dispersed into water drops through the spray disc 52 and is dropped onto the radiating fin group 53, or sprayed in an atomization mode, when the concentrated water flow is smaller in an initial stage, the concentrated water is heated and vaporized when contacting with the first radiating fin group 53, when the heat of the first radiating fin group 53 is insufficient to vaporize along with the continuous adding of the concentrated water, the concentrated water has a heating and warming effect on the concentrated water, and the concentrated water continuously flows downwards under the action of gravity and enters the second radiating fin group 53 to vaporize, or enters the next radiating fin group 53 to vaporize. The greater the number of fin groups 53, the greater the vaporization capacity, and the more concentrated water is treated per unit time; of course, this structure has an important technical point, namely the radiating fins of each radiating fin group 53 adopt the slope installation, when adopting the slope installation, unnecessary dense water can adopt the mode of adhering to the fin upper surface to flow downwards, the gas is through being close to fin lower surface upward movement, the emergence that sets up the phenomenon of can effectually avoid the air lock in the fin that sets up in the vertical like this, be favorable to evaporating concentrated continuously going on, the air lock phenomenon is because dense water contacts high temperature fin and produces a large amount of vapor in the twinkling of an eye and lead to the air current upward movement in vaporizing device 5, and dense water moves downwards under the action of gravity, in addition the clearance is less between the fin makes and produces interior stifled phenomenon in vaporizing device 5 upper portion, dense water unable normal whereabouts contacts with other fins, the steam can not escape fast and lead to vaporizing phenomenon unable continuously going on's phenomenon.

In this embodiment, as shown in fig. 1-2 in conjunction with the description, the water inlet pipeline includes a first pipeline 2 that is communicated with any concentrate chamber 103 of the electrodialysis tank 1, a water inlet branch pipe 4 that is communicated with the spray tray 52, and a pump 3 that connects the first pipeline 2 and the water inlet branch pipe 4 and drives concentrate to flow to the vaporizing device 5; the water outlet pipeline comprises a water outlet branch pipe 6 which is arranged at the bottom of the outer shell 51 and is communicated with a containing cavity at the bottom of the vaporizing device 5, any water outlet branch pipe 6 is communicated with a third pipeline 22, and a second pipeline 21 which is communicated with the first pipeline 2, and a liquid storage tank 7 for temporarily storing redundant concentrated water is arranged between the second pipeline 21 and the third pipeline 22. The reservoir 7 serves two functions: firstly, the pump 3 is guaranteed to have enough concentrated water for circulating vaporization concentration, and idle running is avoided; and secondly, discharging the concentrated water after the preset treatment time or the circulation times for the subsequent desalting treatment.

In this embodiment, the boiler 12 is respectively connected to a circulation radiating pipe arranged in an S-shape in the vaporizing device 5 through a steam supply pipe 14 and a steam return pipe 15, and a circulation pump 151 is disposed on the steam supply pipe 14 or the steam return pipe 15. With specific reference to figures 2 and 3 of the drawings.

In this embodiment, a water pump is further disposed between the water replenishing pipe 13 and the fresh water tank 9, and is used for replenishing water into the boiler 12.

In this embodiment, the electrodialysis tank 1 includes membranes 101 alternately disposed in the tank body for filtering anions/cations, the membranes 101 adopt existing ion membranes, electrodialysis on sewage is achieved by alternately disposing anion membranes and cation membranes, and the tank body is divided into a plurality of fresh water chambers 102 and concentrated water chambers 103 alternately disposed by the membranes 101, and a first polar water chamber 109 and a second polar water chamber 110 distributed at two ends of the tank body;

any one of the concentrate chambers 103 is communicated with the first pipeline 2, a fresh water pipe 107 is arranged at the bottom of any one of the fresh water chambers 102, any one of the fresh water pipes 107 is communicated with a fifth pipeline 108, and the fifth pipeline 108 is communicated with the fresh water pond 9; the bottoms of the first polar water chamber 109 and the second polar water chamber 110 are respectively communicated with a fourth pipeline 106 through a first polar water pipe 104 and a second polar water pipe 105, and the fourth pipeline 106 is communicated with the first pipeline 2, so that concentrated water and fresh water generated after electrodialysis can be continuously subjected to circulating treatment. Of course, electrodialysis is continuous during actual use, but the subsequent concentration by evaporation may be continuous or intermittent, depending on the relationship between the yield of electrodialysis and the digestion of the actual concentration by evaporation.

Example 3:

the present embodiment is described with respect to the connection manner between the plurality of vaporization devices 5 on the basis of any one of the above embodiments, in this embodiment, referring to fig. 1 to 2 of the specification, the plurality of vaporization devices 5 are communicated with the steam supply pipe 14 and the steam return pipe 15 in a serial manner that are mutually communicated. The serial connection means that two vaporization devices 5 are communicated with each other, and the two vaporization devices 5 at the end are respectively communicated with the steam supply pipe 14 and the steam return pipe 15 to form a circulation passage through which steam can flow through each vaporization device 5. The communication mode has the advantages of full circulation and uniform heating, and the steam circulation can be realized by only one driving pump for a single circulation. The disadvantage is that all the vaporization devices 5 need to be turned on no matter the size of vaporization treatment amount, a part of the vaporization devices 5 cannot be turned off, the application environment with larger fluctuation of vaporization demand cannot be adapted, otherwise, the optimal energy consumption configuration cannot be achieved.

Example 4:

this embodiment is another connection scheme different from embodiment 3 and may be used as a parallel alternative to the scheme described in embodiment 3, specifically, a plurality of said vaporizing devices 5 are used in communication with said steam supply pipe 14 and steam return pipe 15, respectively. The mode is similar to parallel arrangement, namely, each vaporizing device 5 is respectively communicated with the steam supply pipe 14 and the steam return pipe 15, and the connecting mode has the advantages that all or part of the vaporizing devices 5 can be flexibly selected to participate in work according to the actual vaporization amount, and the vaporizing devices can be flexibly adjusted, and have stronger adaptability compared with the serial connection.

Of course, the two modes can be combined, namely, on the serial connection mode, the valves between two adjacent vaporization devices 5 are increased to carry out on-off control, then the vaporization devices 5 are connected in pairs through the bypass pipeline with the valves, different combinations are formed by opening and closing different valves, the vaporization devices 5 are switched between different modes of serial connection and parallel connection, and all and part of the vaporization devices participate in vaporization, so that efficiency can be considered, actual energy consumption and cost investment can be considered, and the vaporization concentration scene application of different working conditions and different demands can be adapted.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (8)

1. Electrodialysis concentrator, including electrodialysis groove (1), enrichment facility and condensing equipment, its characterized in that: the concentration device comprises a plurality of vaporization devices (5) for circularly vaporizing and concentrating the concentrated water generated in the electrodialysis tank (1), wherein any vaporization device (5) is communicated with a boiler (12) for conveying high-temperature steam into the vaporization devices (5), the top of the vaporization device (5) is communicated with a steam pipe (8), and the exhaust end of the steam pipe (8) is communicated with the condensation device;

the condensing device comprises a fresh water pool (9) for containing fresh water generated in the electrodialysis tank (1), a plurality of layers of meshed grids are horizontally or obliquely arranged in the fresh water pool (9), and the exhaust end of the steam pipe (8) penetrates through any layer of meshed grids and extends to the bottom position of the fresh water pool (9);

the bottom of the boiler (12) is provided with a heater (11), the boiler (12) is also communicated with a water supplementing pipe (13), and the water supplementing pipe (13) is communicated with the fresh water pond (9).

2. Electrodialysis concentration apparatus according to claim 1, characterized in that: the vaporizing device (5) comprises a closed outer shell (51), the top of the outer shell (51) is communicated with the steam pipe (8), a spray disc (52), a plurality of groups of radiating fin groups (53) which are installed at intervals are sequentially arranged in the outer shell (51) from top to bottom, and any radiating fin group (53) consists of a plurality of radiating fins which are installed obliquely and a containing cavity which is positioned at the bottom; the outer shell (51) is arranged at a position close to the top and is provided with a water inlet pipeline for communicating the spraying disc (52) with concentrated water in the electrodialysis tank (1), and the outer shell (51) is arranged at a position at the bottom and is provided with a water outlet pipeline for re-delivering the unvaporized concentrated water into the water inlet pipeline.

3. Electrodialysis concentration apparatus according to claim 2, characterized in that: the water inlet pipeline comprises a first pipeline (2) communicated with any concentrated water chamber (103) of the electrodialysis tank (1), a water inlet branch pipe (4) communicated with the spray disc (52), and a pump (3) connected with the first pipeline (2) and the water inlet branch pipe (4) and driving concentrated water to flow to the vaporizing device (5); the water outlet pipeline comprises a water outlet branch pipe (6) which is arranged at the bottom of the outer shell (51) and communicated with the accommodating cavity at the bottom of the vaporizing device (5), wherein any water outlet branch pipe (6) is communicated with a third pipeline (22), and a second pipeline (21) which is communicated with the first pipeline (2), and a liquid storage tank (7) for temporarily storing redundant concentrated water is arranged between the second pipeline (21) and the third pipeline (22).

4. Electrodialysis concentration apparatus according to claim 1, characterized in that: the boiler (12) is respectively communicated with a circulating radiating pipe which is arranged in an S-shaped mode in the vaporizing device (5) through a steam supply pipe (14) and a steam return pipe (15), and a circulating pump (151) is arranged on the steam supply pipe (14) or the steam return pipe (15).

5. Electrodialysis concentration apparatus according to claim 4, characterized in that: a water pump is also arranged between the water supplementing pipe (13) and the fresh water pool (9).

6. Electrodialysis concentration device according to any one of claims 1-5, characterized in that: the electrodialysis tank (1) comprises diaphragms (101) alternately arranged in the tank body for filtering anions/cations, a plurality of fresh water chambers (102) and concentrated water chambers (103) alternately arranged in the tank body and separated by the diaphragms (101), and a first polar water chamber (109) and a second polar water chamber (110) which are distributed at two ends of the tank body;

any one of the concentrate chambers (103) is communicated with a first pipeline (2), a fresh water pipe (107) is arranged at the bottom of any one of the fresh water chambers (102), any one of the fresh water pipes (107) is communicated with a fifth pipeline (108), and the fifth pipeline (108) is communicated with the fresh water tank (9); the bottoms of the first polar water chamber (109) and the second polar water chamber (110) are respectively communicated with a fourth pipeline (106) through a first polar water pipe (104) and a second polar water pipe (105), and the fourth pipeline (106) is communicated with the first pipeline (2).

7. Electrodialysis concentration device according to any of claims 4-5, characterized in that: a plurality of vaporization devices (5) are communicated with the steam supply pipe (14) and the steam return pipe (15) in a mutually communicated serial mode.

8. Electrodialysis concentration device according to any of claims 4-5, characterized in that: a plurality of vaporization devices (5) are respectively communicated with the steam supply pipe (14) and the steam return pipe (15).