CN108310979B - Cooling device for electrodialyzer cathode and anode - Google Patents
Cooling device for electrodialyzer cathode and anode Download PDFInfo
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- CN108310979B CN108310979B CN201810140881.5A CN201810140881A CN108310979B CN 108310979 B CN108310979 B CN 108310979B CN 201810140881 A CN201810140881 A CN 201810140881A CN 108310979 B CN108310979 B CN 108310979B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/46—Apparatus therefor
- B01D61/48—Apparatus therefor having one or more compartments filled with ion-exchange material, e.g. electrodeionisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/10—Temperature control
- B01D2311/106—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/12—Addition of chemical agents
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- Urology & Nephrology (AREA)
- Chemical & Material Sciences (AREA)
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a cooling device for a cathode and an anode of an electrodialyzer, which sequentially comprises a cooling coolant storage tank, a lift pump, an electric valve and a cooling pipeline arranged around an anode water chamber in the electrodialyzer; the electrodialyzer comprises a membrane stack, an electrode plate and a pressing device; two sides of the membrane stack are provided with polar water chambers formed by electrode plates; the cooling pipeline is divided into a first cooling pipeline, a second cooling pipeline and a third cooling pipeline, the first cooling pipeline is tightly attached between two adjacent cathode electrode water chambers and anode electrode water chambers of different membrane stacks, the two membrane stacks are respectively located on the outer sides of the anode electrode water chambers and the cathode electrode water chambers on two sides, the third cooling pipeline is tightly attached to the two membrane stacks, and the second cooling pipeline is connected with the first cooling pipeline and the third cooling pipeline. The invention can effectively cool the cathode electrode water chamber and the anode electrode water chamber of the electrodialyzer in work, maintain stable working temperature and improve the working effect and the working efficiency of electrodialysis.
Description
Technical Field
The invention relates to the technical field of electrodialysers, in particular to a cooling device for cathodes and anodes of electrodialysers.
Background
Electrodialysis is a method of separating different solute particles (e.g., ions) by using the permselectivity of an ion exchange membrane. Under the drive of an electric field, charged solute ions in the solution move in a specific direction through the ion exchange membrane, so that the separation and concentration of the ions are realized. The electrodialyzer is used for sea water desalination, and is widely used in chemical industry, light power industry, metallurgy industry, paper making industry, medicine industry and the like. At present, an electrodialyzer on the market generally has two solution circulation flow channels of a dense chamber and a dilute chamber, when the electrodialyzer is used for feed liquid desalination, because the salt content of the feed liquid is high, the applied current is large in the desalination process of an electrically-driven membrane separation device, the normal working temperature of the electrodialyzer is 0-40 ℃, a cooling device is not arranged in the existing electrodialyzer, and the electrodialyzer is in a high-temperature state for a long time, so that the normal working of the electrodialyzer can be seriously influenced.
Disclosure of Invention
The invention mainly solves the technical problem of providing a cooling device for the cathode and the anode of an electrodialyzer, which can effectively cool the water chamber of the cathode and the anode of the electrodialyzer in work, maintain stable working temperature and improve the working effect and the working efficiency of electrodialysis.
In order to solve the technical problems, the invention adopts a technical scheme that:
the cooling device for the cathode and the anode of the electrodialyzer comprises a cooling coolant storage tank, a lift pump, an electric valve and a cooling pipeline arranged around an electrode water chamber in the electrodialyzer in sequence;
the electrodialyzer comprises a membrane stack, an electrode plate and a compressing device, wherein the membrane stack comprises at least one group of membrane pairs, and the membrane pairs are formed by sequentially overlapping a cation exchange membrane, a first partition plate, an anion exchange membrane and a second partition plate; two sides of the membrane stack are provided with polar water chambers formed by electrode plates;
the cooling pipeline is divided into a first cooling pipeline, a second cooling pipeline and a third cooling pipeline, the first cooling pipeline is tightly attached between two adjacent cathode electrode water chambers and anode electrode water chambers of different membrane stacks, the two membrane stacks are respectively located on the outer sides of the anode electrode water chambers and the cathode electrode water chambers on two sides, the third cooling pipeline is tightly attached to the two membrane stacks, and the second cooling pipeline is connected with the first cooling pipeline and the third cooling pipeline.
In a preferred embodiment of the present invention, the first temperature-reducing pipelines are distributed in a spiral shape.
In a preferred embodiment of the invention, the second cooling line is used for transporting cooling liquid and keeps a specific distance from any membrane stack.
In a preferred embodiment of the invention, there is at least more than one membrane pair in any of the membrane stacks.
In a preferred embodiment of the invention, the first partition plate in each membrane pair has a plurality of grid-shaped channels on the plate surface.
In a preferred embodiment of the present invention, a depth probe is disposed in each of the pole water chambers.
In a preferred embodiment of the present invention, a cooling liquid is circulated, and the cooling liquid comprises the following components by mass percent: 0.8-1.5% of calcium chloride, 2.5-4.3% of sodium chloride, 4.5-12% of ethanol and the balance of water.
In a preferred embodiment of the invention, the mass percentages of the components are as follows: 1.2% of calcium chloride, 3.2% of sodium chloride, 8.6% of ethanol and the balance of water.
In a preferred embodiment of the invention, the mass percentages of the components are as follows: 1.0% of calcium chloride, 2.8% of sodium chloride, 6.0% of ethanol and the balance of water.
In a preferred embodiment of the invention, the mass percentages of the components are as follows: 0.8% of calcium chloride, 4.0% of sodium chloride, 10.5% of ethanol and the balance of water.
The invention has the beneficial effects that: the cooling device for the electrodialysis cathode and anode can effectively cool the cathode water chamber and the anode water chamber of the electrodialyzer in work, maintain stable working temperature and improve the working effect and the working efficiency of electrodialysis; the cooling liquid specially prepared for the electrodialysis work has the advantages of safety, high efficiency and high recycling rate.
Drawings
Fig. 1 is a schematic structural diagram of embodiments 1 and 3 of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the present invention;
the parts in the drawings are numbered as follows: 11. the device comprises a first cooling pipeline, a second cooling pipeline, a third cooling pipeline, a cooling coolant storage tank, a lifting pump, a first cooling pipeline, a second cooling pipeline, a third cooling pipeline, a fourth cooling coolant storage tank, a fourth cooling pipeline, a lifting pump, a fourth cooling pipeline, an electrically operated valve, a 51, a first anode electrode water chamber, a 52, a first cathode electrode water chamber, a 53, a second anode electrode water chamber, a 54, a;
1 ', a cooling pipeline, 2 ', a cooling coolant storage tank, 3 ', a lift pump, 4 ', an electric valve, 51 ', an anode water chamber, 52 ', a cathode water chamber, 6 ' and a depth probe.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Example 1:
as shown in fig. 1, the cooling device for the cathode and the anode of the electrodialyzer sequentially comprises a cooling coolant storage tank 2, a lift pump 3, an electric valve 4 and a cooling pipeline arranged around the cathode water chamber of the electrodialyzer.
The electrodialyzer comprises a membrane stack, an electrode plate and a compressing device, wherein the membrane stack comprises at least one group of membrane pairs, and the membrane pairs are formed by sequentially overlapping a cation exchange membrane, a first partition plate, an anion exchange membrane and a second partition plate; and two sides of the membrane stack are provided with polar water chambers formed by the electrode plates.
In this embodiment, two film stacks are provided, namely a first film stack and a second film stack, wherein the first film stack and the second film stack are respectively provided with a plurality of pairs of films. The first membrane stack is provided with a first cathode water chamber 52 and a first anode water chamber 51, and the second membrane stack is provided with a second cathode water chamber 54 and a second anode water chamber 53. The first and second membrane stacks are installed adjacent to each other, and the first cathode water chamber 52 of the first membrane stack and the second anode water chamber 53 of the second membrane stack are directly installed adjacent to each other. The cooling pipeline is divided into a first cooling pipeline 11, a second cooling pipeline 12 and a third cooling pipeline 13, the first cooling pipeline 11 is tightly attached between a first cathode water chamber 52 and a second anode water chamber 53, the third cooling pipeline 13 is tightly attached to the outer sides of the first anode water chamber 51 and the second cathode water chamber 54, and the second cooling pipeline 12 is connected with the first cooling pipeline 11 and the third cooling pipeline 13. The second cooling line 12 is used for transporting cooling liquid and keeps a specific distance from any membrane stack.
Example 2:
as shown in fig. 2, the cooling device for the cathode and the anode of the electrodialyzer sequentially comprises a cooling coolant storage tank 2 ', a lift pump 3', an electric valve 4 'and a cooling pipeline 1' arranged around the cathode water chamber of the electrodialyzer.
The electrodialyzer comprises a membrane stack, an electrode plate and a compressing device, wherein the membrane stack comprises at least one group of membrane pairs, and the membrane pairs are formed by sequentially overlapping a cation exchange membrane, a first partition plate, an anion exchange membrane and a second partition plate; and two sides of the membrane stack are provided with polar water chambers formed by the electrode plates.
In this embodiment, a membrane stack is provided, in which a cathode water chamber and an anode water chamber are provided, and depth probes 6' are provided in the cathode water chamber and the anode water chamber. The cooling liquid flows through the cooling pipeline 1' from the side edge of any polar water chamber in a clinging manner, and flows to the other polar water chamber, wherein when the cooling liquid flows through the non-polar water chamber, a certain distance is arranged between the cooling liquid and the electrodialysis equipment, and the cooling liquid is not cooled.
Example 3:
a cooling device for electrodialyzer cathode and anode is shown in figure 1, the main structure is similar to that of embodiment 1, the difference is that at least more than one membrane pair in any membrane stack is provided, and a plurality of latticed channels are arranged on the plate surface of the first partition plate in each membrane pair, so that the circulation of the same solution to be treated can be facilitated. And a depth probe 6 is provided in each of the pole water chambers.
In this embodiment, the first cooling pipeline 11 is spirally distributed, and spirally distributed from top to bottom, and tightly attached between the first cathode water chamber 52 and the second anode water chamber 53, and the third cooling pipeline 13 is configured as a serpentine curved channel, and tightly attached to the outer sides of the first anode water chamber 51 and the second cathode water chamber 54. The first cooling pipeline 11 and the third cooling pipeline 13 are made of metal materials which are easy to conduct temperature.
In any of the above embodiments, a cooling liquid adapted to the cooling device is also specially prepared, and the cooling liquid comprises the following components in percentage by mass: 0.8-1.5% of calcium chloride, 2.5-4.3% of sodium chloride, 4.5-12% of ethanol and the balance of water.
Wherein, calcium chloride 1.2%, sodium chloride 3.2%, ethanol 8.6%, and water in balance can be selected; or 1.0% of calcium chloride, 2.8% of sodium chloride, 6.0% of ethanol and the balance of water; or 0.8% of calcium chloride, 4.0% of sodium chloride, 10.5% of ethanol and the balance of water.
The cooling device for the electrodialysis cathode and anode can effectively cool the cathode water chamber and the anode water chamber of the electrodialyzer in work, maintain stable working temperature and improve the working effect and the working efficiency of electrodialysis; the cooling liquid specially prepared for the electrodialysis work has the advantages of safety, high efficiency and high recycling rate.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A cooling device for the cathode and the anode of an electrodialyzer is characterized by sequentially comprising a cooling coolant storage tank, a lift pump, an electric valve and a cooling pipeline arranged around an anode water chamber in the electrodialyzer;
the electrodialyzer comprises a membrane stack, an electrode plate and a compressing device, wherein the membrane stack comprises at least one group of membrane pairs, and the membrane pairs are formed by sequentially overlapping a cation exchange membrane, a first partition plate, an anion exchange membrane and a second partition plate; two sides of the membrane stack are provided with polar water chambers formed by electrode plates;
the cooling pipeline is divided into a first cooling pipeline, a second cooling pipeline and a third cooling pipeline, the first cooling pipeline is tightly attached between a cathode water chamber and an anode water chamber which are adjacent to two different membrane stacks, the two membrane stacks are respectively positioned at the outer sides of the anode water chamber and the cathode water chamber at two sides, the tightly attached third cooling pipeline is arranged, and the second cooling pipeline is connected with the first cooling pipeline and the third cooling pipeline;
wherein, cooling liquid flows through the cooling liquid, and the mass percentage of the cooling liquid is as follows: 0.8-1.5% of calcium chloride, 2.5-4.3% of sodium chloride, 4.5-12% of ethanol and the balance of water; the first cooling pipelines are distributed in a spiral shape; the second cooling pipeline is used for transporting cooling liquid and keeps a specific distance from any membrane stack; at least one or more membrane pairs in any of the membrane stacks; the plate surface of the first partition plate in each group of membrane pairs is provided with a plurality of latticed channels; and a depth probe is arranged in each electrode water chamber.
2. The cooling device for the cathodes and anodes of electrodialysers according to claim 1, wherein the cooling liquid comprises the following components in percentage by mass: 1.2% of calcium chloride, 3.2% of sodium chloride, 8.6% of ethanol and the balance of water.
3. The cooling device for the cathodes and anodes of electrodialysers according to claim 1, wherein the cooling liquid comprises the following components in percentage by mass: 1.0% of calcium chloride, 2.8% of sodium chloride, 6.0% of ethanol and the balance of water.
4. The cooling device for the cathodes and anodes of electrodialysers according to claim 1, wherein the cooling liquid comprises the following components in percentage by mass: 0.8% of calcium chloride, 4.0% of sodium chloride, 10.5% of ethanol and the balance of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140881.5A CN108310979B (en) | 2018-02-11 | 2018-02-11 | Cooling device for electrodialyzer cathode and anode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140881.5A CN108310979B (en) | 2018-02-11 | 2018-02-11 | Cooling device for electrodialyzer cathode and anode |
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| CN108310979A CN108310979A (en) | 2018-07-24 |
| CN108310979B true CN108310979B (en) | 2021-04-13 |
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| CN110305029B (en) * | 2019-07-01 | 2022-11-04 | 河北强业生物化工有限公司 | Purification method and equipment of glycine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001003038A (en) * | 1999-06-21 | 2001-01-09 | Takei Seisakusho:Kk | Coolant composition |
| CN101402497A (en) * | 2008-09-16 | 2009-04-08 | 王方 | Electric ion removing method and device for recycling inorganic ammonia nitrogen wastewater |
| CN103990382A (en) * | 2014-05-13 | 2014-08-20 | 浙江赛特膜技术有限公司 | Method for separating methoxamine from distillation liquid by using electrodialysis |
| CN104557621A (en) * | 2014-12-23 | 2015-04-29 | 浙江威拓精细化学工业有限公司 | Method for preparing methanesulfonic acid by utilizing bipolar membrane electrodialysis technology |
| RU2625668C1 (en) * | 2016-11-15 | 2017-07-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") | Electro-baromembrane flat-chamber apparatus |
-
2018
- 2018-02-11 CN CN201810140881.5A patent/CN108310979B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001003038A (en) * | 1999-06-21 | 2001-01-09 | Takei Seisakusho:Kk | Coolant composition |
| CN101402497A (en) * | 2008-09-16 | 2009-04-08 | 王方 | Electric ion removing method and device for recycling inorganic ammonia nitrogen wastewater |
| CN103990382A (en) * | 2014-05-13 | 2014-08-20 | 浙江赛特膜技术有限公司 | Method for separating methoxamine from distillation liquid by using electrodialysis |
| CN104557621A (en) * | 2014-12-23 | 2015-04-29 | 浙江威拓精细化学工业有限公司 | Method for preparing methanesulfonic acid by utilizing bipolar membrane electrodialysis technology |
| RU2625668C1 (en) * | 2016-11-15 | 2017-07-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") | Electro-baromembrane flat-chamber apparatus |
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