CN204735119U - Bipolar membrane electrodialysis device - Google Patents
Bipolar membrane electrodialysis device Download PDFInfo
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- CN204735119U CN204735119U CN201520044787.1U CN201520044787U CN204735119U CN 204735119 U CN204735119 U CN 204735119U CN 201520044787 U CN201520044787 U CN 201520044787U CN 204735119 U CN204735119 U CN 204735119U
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- bipolar membrane
- pipeline
- membrane electrodialysis
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- heat exchanger
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Abstract
The utility model relates to a purification splitter, in particular to bipolar membrane electrodialysis device. The device includes bipolar membrane electrodialysis equipment, leaves bipolar membrane electrodialysis equipment is by far away to near, and is continuous with the pipeline of bipolar membrane electrodialysis equipment, has set up the basin that connects gradually, circulating pump, filter and heat exchanger. The utility model discloses reinforceing and extending bipolar membrane electrodialysis device's function, device after the improvement links up compact advantage with fast, the long service life of its heat transfer, equipment room, can the efficient be applied to the mass production of chemical products, especially uses in amino acid and analog production.
Description
Technical field
The utility model relates to a kind of purifies and separates equipment, particularly a kind of bipolar membrane electrodialysis device.
Background technology
About the research report of Bipolar Membrane just occurred from mid-term the 1950's, its evolution can be divided into three phases: mid-term the 1950's first stage is to the initial stage eighties, this is Bipolar Membrane development period very slowly, Bipolar Membrane is only by two panels anion and cation exchange membrane direct pressing, poor performance, the theoretical pressure drop of water decomposition voltage ratio is high tens times, and application study is also in the laboratory stage based on water decomposition; Second stage is from early 1980s to the beginning of the nineties, due to the improvement of Bipolar Membrane technology of preparing, successfully have developed monolithic type Bipolar Membrane, its performance improves greatly, in relieving haperacidity alkali and desulfur technology, obtaining successful Application, there is commodity Bipolar Membrane in this one-phase.From early 1990s so far, it is the period that Bipolar Membrane develops rapidly, along with the further investigation to Bipolar Membrane course of work mechanism, significant improvement has been carried out from membrane structure, membrane material and preparation process, the performance of Bipolar Membrane is greatly improved, wherein mainly to the improvement of cavity block and anode membrane contact interface, " monolithic type " structure occurred from initial simple " pressure stratotype " or " coating type " structure to early 1980s, occur again subsequently, with the labyrinth of middle " Catalytic Layer ", greatly reducing membrane voltage.Bipolar membrane electrodialysis technology has played original effect in optimization traditional industrial process and new industrial process.
With bipolar membrane electrodialysis device glycine Chemical Manufacture and be separated into example, because it can be directly used in the synthesis feed liquid of separation and purification glycine, and without in additional acid and feed liquid, not by-product inorganic salts in separation process, production environmental protection, therefore has important industrial value.
With regard to the structure of existing bipolar membrane electrodialysis device, a kind of novel electrodialytic membranes unit equipment disclosed in Chinese patent application 201320159281.6: this equipment comprises many group anion and cation exchange membrane groups, be provided with battery lead plate outside anion and cation exchange membrane group, outside battery lead plate, be provided with clamping device; Battery lead plate is provided with circulation line in the side near exchange membrane group, battery lead plate is provided with fresh water inlet, fresh water liquid outlet, the inlet of dense water, dense water liquid outlet, pole water inlet and pole water liquid outlet, and pole water inlet is communicated with by circulation line with pole water liquid outlet; Anion and cation exchange membrane group comprises anion-exchange membrane, cation-exchange membrane, arranges dividing plate, is provided with pole film between exchange membrane group and battery lead plate, arrange dividing plate between pole film and exchange membrane group between anions and canons exchange membrane and between two adjacent groups exchange membrane group; Dividing plate is provided with the runner that multiple tracks is passed for liquid.This electrodialysis plant, by the change of device specifics, makes it have the assembling mode of advantages of simple, high efficiency more during work.
But, in industrialized embody rule, although this similar bipolar membrane electrodialysis device has the optimization of thin portion structure, but due to the complexity of chemical industry process material liquid component, and relate to complicated physic-chemical changes (as heat release or heat absorption) in process feed liquid process, to add in electrodialytic process the problems such as Bipolar Membrane assembly self-heat generation, such device can not directly be applied, and has that heat exchange is slow, film is easily blocked by feed liquid or destroy, be difficult to the problems such as circulation production.
Thus, need to improve existing electrodialysis plant, to adapt to the requirement that in reality, chemical industry is produced in enormous quantities.
Utility model content
In view of this, the technical problems to be solved in the utility model is to provide a kind of bipolar membrane electrodialysis device, and this device heat exchange is fast, long service life, equipment room are connected compact, can be applied in the production in enormous quantities of chemical products efficiently.
For achieving the above object, the technical solution of the utility model is:
A kind of bipolar membrane electrodialysis device, comprises bipolar membrane electrodialysis equipment, from described bipolar membrane electrodialysis equipment from far near, is connected with the pipeline of bipolar membrane electrodialysis equipment, be provided with the basin, circulating pump, filter and the heat exchanger that connect successively.
Further, described pipeline is material liquid pipeline and/or alkali lye pipeline and/or pole liquid pipeline; Described heat exchanger is connected with described pipeline by pipeline, or described heat exchanger is connected by pipeline and the material liquid mouth on bipolar membrane electrodialysis equipment and/or alkali lye mouth and/or pole liquid mouth.
Further, described filter is cartridge filter.
Further, be connected with described material liquid pipeline, be provided with the head tank, feed liquid circulating pump, feed liquid cartridge filter and the feed liquid heat exchanger that connect successively; Be connected with described alkali lye pipeline, be provided with the alkali liquid tank, NaOH solution circulating pump, alkali lye cartridge filter and the alkali lye heat exchanger that connect successively; Be connected with described pole liquid pipeline, be provided with the pole flow container, pole liquid circulating pump, pole liquid cartridge filter and the pole liquid heat exchanger that connect successively; Between the described neighboring devices be connected with pipeline, by pipeline, the upper outlet of a device is connected with the import of next device.
Further, the feed liquid delivery port of described bipolar membrane electrodialysis equipment, alkali lye delivery port are connected with pole flow container water inlet with head tank water inlet, alkali liquid tank water inlet respectively with pole liquid delivery port.
Further, described bipolar membrane electrodialysis equipment comprises Bipolar Membrane membrane stack, and described heat exchanger is connected with Bipolar Membrane membrane stack by pipeline.
Further, the Mo Zu unit of described Bipolar Membrane membrane stack is salt/alkali two cell-type, comprises anode chamber, cation-exchange membrane, alkali lye room, Bipolar Membrane film to, feed liquid room, cathode chamber, Pressure gauge, flowmeter, pipeline and dc source.
Further, described Bipolar Membrane membrane stack both sides are any one a pair anodic-cathodic formed that titanium is coated with in ruthenium iridium, titanium platinum plating, graphite electrode and stainless steel electrode, and more preferably described Bipolar Membrane membrane stack both sides are respectively a pair titanium and are coated with ruthenium iridium or titanium platinum plating anodic-cathodic.Further, in described Bipolar Membrane membrane stack, Bipolar Membrane and cation-exchange membrane are arranged alternately, and form alkali lye room and feed liquid room respectively.
Further, adjacent described feed liquid room and alkali lye room are a unit, repeat 10 unit altogether.
Further, the Bipolar Membrane film of described Bipolar Membrane membrane stack is to being of a size of 100mm × 200mm.
The beneficial effects of the utility model:
The connection passing through independently basin, circulating pump, filter and heat exchanger and bipolar membrane electrodialysis equipment of the present utility model, strengthens the function of bipolar membrane electrodialysis device and extends.Particularly, described basin is beneficial to circulation and the storage of feed liquid, expands batch output; Described circulating pump promotes feed liquid conversion and cycle in pipeline; Described filter can the impurity such as filtering particle, extends the life-span of bipolar membrane electrodialysis device; Described heat exchanger can carry out heat exchange to bipolar membrane electrodialysis device timely, can take away the heat produced in the heat and/or feed liquid physic-chemical changes process produced in bipolar membrane electrodialysis equipment running process timely, promotes that reaction is carried out towards required direction.And, heat exchanger and bipolar membrane electrodialysis equipment are independently parts, can not be built in the overall structure destroying Bipolar Membrane membrane stack the heat-exchanging component in bipolar membrane electrodialysis device as other, the setting of heat exchanger can not affect expansion continuous prodution and the structure optimization of bipolar membrane electrodialysis equipment.Thus, bipolar membrane electrodialysis device of the present utility model is fast with its heat exchange, long service life, equipment room are connected compact advantage, can be applied in the production in enormous quantities of chemical products efficiently, particularly applies in amino acid and analog thereof are produced.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is the structural representation of the utility model bipolar membrane electrodialysis device;
Fig. 2 is internal structure schematic diagram and the fundamental diagram (it is to process sodium glycinate solution) thereof of Bipolar Membrane membrane stack in the utility model.
Detailed description of the invention
Below with reference to accompanying drawing, the utility model is described in detail, as shown in Figure 1-2: a kind of bipolar membrane electrodialysis device of the present embodiment, comprise bipolar membrane electrodialysis equipment, from described bipolar membrane electrodialysis equipment from far near, be connected with the pipeline of bipolar membrane electrodialysis equipment, be provided with the basin 4, circulating pump 5, filter 6 and the heat exchanger 7 that connect successively.
Further, described pipeline is material liquid pipeline and/or alkali lye pipeline and/or pole liquid pipeline; Described heat exchanger 7 is connected with described pipeline by pipeline, or described heat exchanger 7 is connected by pipeline and the material liquid mouth on bipolar membrane electrodialysis equipment and/or alkali lye mouth and/or pole liquid mouth.During operation, material liquid, alkali lye and pole liquid respectively successively by the basin 4 of its correspondence, circulating pump 5, filter 6 and heat exchanger 7, then enter in material liquid corresponding to bipolar membrane electrodialysis equipment and/or alkali lye and/or pole liquid pipeline.
Further, described filter 6 is cartridge filter 6, and this is a kind of concrete form of filter.
Further, be connected with described material liquid pipeline, be provided with the head tank 41, feed liquid circulating pump 51, feed liquid cartridge filter 61 and the feed liquid heat exchanger 71 that connect successively; Be connected with described alkali lye pipeline, be provided with the alkali liquid tank 42, NaOH solution circulating pump 52, alkali lye cartridge filter 62 and the alkali lye heat exchanger 72 that connect successively; Be connected with described pole liquid pipeline, be provided with the pole flow container 43, pole liquid circulating pump 53, pole liquid cartridge filter 63 and the pole liquid heat exchanger 73 that connect successively; Between the described neighboring devices be connected with pipeline, by pipeline, the upper outlet of a device is connected with the import of next device.This is the concrete connected mode of one of each equipment room.
Further, the feed liquid delivery port of described bipolar membrane electrodialysis equipment, alkali lye delivery port are connected with pole flow container water inlet with head tank water inlet, alkali liquid tank water inlet respectively with pole liquid delivery port.The circulation of feed liquid from basin 4 to bipolar membrane electrodialysis equipment room of this connection specific implementation.During operation, feed liquid circulates between aforementioned device, when the feed liquid in basin 4 reaches required requirement, as specific pH or electrical conductivity, can gather in the crops product.This cycles through the use of a bipolar membrane electrodialysis equipment, can produce and obtain satisfactory product, save the input of production equipment.
Further, described bipolar membrane electrodialysis equipment comprises Bipolar Membrane membrane stack 8, and described heat exchanger 7 is connected with Bipolar Membrane membrane stack 8 by pipeline.This is the concrete connected mode of one of Bipolar Membrane membrane stack 8 and heat exchanger 7, and the utility model does not get rid of the connected mode that other can realize heat transmission.
Further, the Mo Zu unit of described Bipolar Membrane membrane stack 8 is salt/alkali two cell-type, comprises anode chamber 10, cation-exchange membrane, alkali lye room 11, Bipolar Membrane film to, feed liquid room 12, cathode chamber 13, Pressure gauge, flowmeter, pipeline and dc source.
Further, described Bipolar Membrane membrane stack 8 both sides are respectively a pair titanium and are coated with ruthenium iridium or titanium platinum plating anodic-cathodic, and internal bipolar film and cation-exchange membrane are arranged alternately, and form alkali lye room 11 and feed liquid room 12 respectively.Fig. 2 is internal structure schematic diagram and the fundamental diagram thereof of Bipolar Membrane membrane stack 8.Its operationally, by feed liquid to be purified, as sodium glycinate solution passes into feed liquid room 12, under DC electric field effect, water decomposition is become H by Bipolar Membrane
+and OH
-, enter feed liquid room 12 and alkali lye room 11 respectively.Cation enters alkali lye room by cation-exchange membrane, the OH dissociateed with Bipolar Membrane
-be combined into NaOH, the H that weak acid radical ion and Bipolar Membrane ionize out
+be combined into weak acid, obtain glycine product.
Further, as the optimization of the utility model in separation for amino acids application, the adjacent feed liquid room 12 in described Bipolar Membrane membrane stack 8 and alkali lye room 11 are a unit, repeat 10 unit altogether; The Bipolar Membrane film of described Bipolar Membrane membrane stack 8 is to being of a size of 100mm × 200mm.
In addition, also depict rectifier 9 in figure, the both positive and negative polarity of rectifier 9 connects with Bipolar Membrane membrane stack 8 respectively by wire (D1, D2).
Cartridge filter is used for the pretreatment of bipolar membrane electrodialysis process by the utility model, by heat exchanger applications in reducing the heat produced in bipolar membrane electrodialysis process, by basin, feed liquid, alkali lye are connected bipolar membrane electrodialysis device respectively with pole liquid, this device has been possessed, and heat exchange is fast, long service life, equipment room are connected the advantage such as compact, can adapt to the requirement that typical products in mass production is produced.For the process of the Sodium Glycinate feed liquid to synthesis, Sodium Glycinate can be converted into glycine by the utility model, instead of traditional acidification technique completely, the H that leaching process utilizes Bipolar Membrane water decomposition to go out
+, without the need to outer acid adding, save the input of acid, simultaneously the generation of no coupling product salt, production process meet the requirement of environmental protection, makes separating-purifying more simple, and the NaOH accessory substance simultaneously generated can return synthesis technique and recycle, and reduces production cost.And this device adopts modular bipolar membrane electrodialysis unit, with short production cycle, simple to operate, greatly reduce labour intensity, and product purity is high, has broad application prospects.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. a bipolar membrane electrodialysis device, comprise bipolar membrane electrodialysis equipment, it is characterized in that: from described bipolar membrane electrodialysis equipment from far near, be provided with the basin (4), circulating pump (5), filter (6) and the heat exchanger (7) that connect successively, heat exchanger (7) is connected with the pipeline of bipolar membrane electrodialysis equipment.
2. bipolar membrane electrodialysis device according to claim 1, is characterized in that: described pipeline is material liquid pipeline and/or alkali lye pipeline and/or pole liquid pipeline; Described heat exchanger (7) is connected with described pipeline by pipeline, or described heat exchanger (7) is connected by pipeline and the material liquid mouth on bipolar membrane electrodialysis equipment and/or alkali lye mouth and/or pole liquid mouth.
3. bipolar membrane electrodialysis device according to claim 1 and 2, is characterized in that: described filter (6) is cartridge filter (6).
4. bipolar membrane electrodialysis device according to claim 2, it is characterized in that: be connected with described material liquid pipeline, be provided with the head tank (41), feed liquid circulating pump (51), feed liquid cartridge filter (61) and the feed liquid heat exchanger (71) that connect successively, between neighboring devices, by pipeline, the upper outlet of a device be connected with the import of next device; Be connected with described alkali lye pipeline, be provided with the alkali liquid tank (42), NaOH solution circulating pump (52), alkali lye cartridge filter (62) and the alkali lye heat exchanger (72) that connect successively, between neighboring devices, by pipeline, the upper outlet of a device be connected with the import of next device; Be connected with described pole liquid pipeline, be provided with connect successively pole flow container (43), pole liquid circulating pump (53), pole liquid cartridge filter (63) and pole liquid heat exchanger (73), by pipeline, the upper outlet of a device is connected with the import of next device between neighboring devices.
5. bipolar membrane electrodialysis device according to claim 4, is characterized in that: feed liquid delivery port, the alkali lye delivery port of described bipolar membrane electrodialysis equipment are connected with pole flow container water inlet with head tank water inlet, alkali liquid tank water inlet respectively with pole liquid delivery port.
6. bipolar membrane electrodialysis device according to claim 1 and 2, it is characterized in that: described bipolar membrane electrodialysis equipment comprises Bipolar Membrane membrane stack (8), described heat exchanger (7) is connected with Bipolar Membrane membrane stack (8) by pipeline.
7. bipolar membrane electrodialysis device according to claim 6, it is characterized in that: the Mo Zu unit of described Bipolar Membrane membrane stack (8) is salt/alkali two cell-type, comprise anode chamber (10), cation-exchange membrane, alkali lye room (11), Bipolar Membrane film to, feed liquid room (12), cathode chamber (13), Pressure gauge, flowmeter, pipeline and dc source.
8. bipolar membrane electrodialysis device according to claim 6, it is characterized in that: described Bipolar Membrane membrane stack (8) both sides are any one a pair anodic-cathodic formed that titanium is coated with in ruthenium iridium, titanium platinum plating, graphite electrode and stainless steel electrode, internal bipolar film and cation-exchange membrane are arranged alternately, and form alkali lye room (11) and feed liquid room (12) respectively.
9. bipolar membrane electrodialysis device according to claim 8, is characterized in that: the adjacent feed liquid room (12) in described Bipolar Membrane membrane stack (8) and alkali lye room (11) are a unit, repeats 10 unit altogether.
10. bipolar membrane electrodialysis device according to claim 7, is characterized in that: the Bipolar Membrane film of described Bipolar Membrane membrane stack (8) is to being of a size of 100mm × 200mm.
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| CN201520044787.1U CN204735119U (en) | 2015-01-22 | 2015-01-22 | Bipolar membrane electrodialysis device |
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| CN201520044787.1U CN204735119U (en) | 2015-01-22 | 2015-01-22 | Bipolar membrane electrodialysis device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105671587A (en) * | 2015-12-10 | 2016-06-15 | 浙江工业大学 | Method and device for preparing methionine and recovering by-product-carbon dioxide |
| CN106315935A (en) * | 2016-08-31 | 2017-01-11 | 山东天维膜技术有限公司 | Water desalination device and water desalination method adopting same |
| CN109336064A (en) * | 2018-11-06 | 2019-02-15 | 宜宾海丝特纤维有限责任公司 | A kind of viscose sodium sulfate waste liquor multi-level handling system |
| CN109437121A (en) * | 2018-11-06 | 2019-03-08 | 宜宾海丝特纤维有限责任公司 | A kind of viscose sodium sulfate waste liquor multistage treatment method |
| CN110436678A (en) * | 2019-07-12 | 2019-11-12 | 浙江海牛环境科技股份有限公司 | A kind of automatic control system for running and protecting for electrodialysis system |
| CN110904465A (en) * | 2019-10-22 | 2020-03-24 | 新疆中泰创新技术研究院有限责任公司 | Device and method for treating byproduct mirabilite of viscose factory |
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2015
- 2015-01-22 CN CN201520044787.1U patent/CN204735119U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671587A (en) * | 2015-12-10 | 2016-06-15 | 浙江工业大学 | Method and device for preparing methionine and recovering by-product-carbon dioxide |
| CN106315935A (en) * | 2016-08-31 | 2017-01-11 | 山东天维膜技术有限公司 | Water desalination device and water desalination method adopting same |
| CN106315935B (en) * | 2016-08-31 | 2019-07-09 | 山东天维膜技术有限公司 | Water quality desalting plant and the method for desalinating water quality using the device |
| CN109336064A (en) * | 2018-11-06 | 2019-02-15 | 宜宾海丝特纤维有限责任公司 | A kind of viscose sodium sulfate waste liquor multi-level handling system |
| CN109437121A (en) * | 2018-11-06 | 2019-03-08 | 宜宾海丝特纤维有限责任公司 | A kind of viscose sodium sulfate waste liquor multistage treatment method |
| CN109336064B (en) * | 2018-11-06 | 2022-03-18 | 宜宾海丝特纤维有限责任公司 | Viscose fiber sodium sulfate waste liquid multistage processing system |
| CN109437121B (en) * | 2018-11-06 | 2022-04-12 | 宜宾海丝特纤维有限责任公司 | Multistage treatment method for viscose sodium sulfate waste liquid |
| CN110436678A (en) * | 2019-07-12 | 2019-11-12 | 浙江海牛环境科技股份有限公司 | A kind of automatic control system for running and protecting for electrodialysis system |
| CN110904465A (en) * | 2019-10-22 | 2020-03-24 | 新疆中泰创新技术研究院有限责任公司 | Device and method for treating byproduct mirabilite of viscose factory |
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