CN210458383U - Device suitable for inorganic salt electrolysis - Google Patents
Device suitable for inorganic salt electrolysis Download PDFInfo
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- CN210458383U CN210458383U CN201921305019.1U CN201921305019U CN210458383U CN 210458383 U CN210458383 U CN 210458383U CN 201921305019 U CN201921305019 U CN 201921305019U CN 210458383 U CN210458383 U CN 210458383U
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Abstract
The utility model discloses a device suitable for inorganic salt electrolysis, which comprises an ion membrane electrolytic cell, an anolyte circulation loop and a catholyte circulation loop; the anode electrolyte circulation loop comprises an anode electrolyte supplement metering pump, an anode circulation tank and an anode circulation pump which are sequentially connected through a pipeline, the output end of the anode circulation pump is connected to the electrolyte inlet of the anode chamber, and the electrolyte outlet of the anode chamber is connected to the anode circulation tank through a pipeline; the cathode electrolyte circulation loop comprises a cathode electrolyte supplement metering pump, a cathode circulation tank and a cathode circulation pump which are sequentially connected through a pipeline, the output end of the cathode circulation pump is connected to an electrolyte inlet of the cathode chamber, and an electrolyte outlet of the cathode chamber is connected to the cathode circulation tank through a pipeline; and an electrolytic finished product outlet and an electrolytic gas outlet are respectively arranged at the upper part of the anode circulating tank and the upper part of the cathode circulating tank. The utility model discloses a high quality electrolysis of inorganic salt under the small batch condition.
Description
Technical Field
The utility model relates to an electrolysis technical field, concretely relates to device suitable for inorganic salt electrolysis.
Background
The electrolytic bath consists of a bath body, an anode, a cathode and the like arranged in the bath body, and an anode chamber and a cathode chamber are separated by a diaphragm. The electrolytic bath is divided into three types, namely an aqueous solution electrolytic bath, a molten salt electrolytic bath and a non-aqueous solution electrolytic bath according to the difference of the electrolyte. When direct current passes through the electrolytic cell, an oxidation reaction occurs at the interface of the anode and the solution, and a reduction reaction occurs at the interface of the cathode and the solution, so as to prepare the required product.
In the prior art, the feeding mode of the device for preparing inorganic salt and electrolyzing is intermittent feeding, namely, a batch of materials are added, discharged after the electrolysis reaches the standard, replaced and electrolyzed again. The electrolysis device and the electrolysis mode are mainly suitable for large-scale production. For inorganic salt electrolysis with low production demand (such as waste salt treatment by electrolysis), if a traditional electrolysis device is adopted, quality cannot be controlled due to factors such as too low flow, too fast temperature loss and the like. At present, no inorganic salt electrolysis device specially aiming at the daily output of less than hundred kilograms exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a device suitable for inorganic salt electrolysis, which aims at realizing the high-quality electrolysis of inorganic salt under the condition of small batch. The specific technical scheme is as follows:
an apparatus suitable for inorganic salt electrolysis comprises an ionic membrane electrolytic cell, an anolyte circulation loop connected with an anode chamber of the ionic membrane electrolytic cell, and a catholyte circulation loop connected with a cathode chamber of the ionic membrane electrolytic cell; the anode electrolyte circulating loop comprises an anode electrolyte supplementing metering pump, an anode circulating tank and an anode circulating pump which are sequentially connected through a pipeline according to the conveying and circulating direction of the anode electrolyte, the output end of the anode circulating pump is connected to the electrolyte inlet of the anode chamber, and the electrolyte outlet of the anode chamber is connected to the anode circulating tank through a pipeline; the cathode electrolyte circulation loop comprises a cathode electrolyte supplement metering pump, a cathode circulation tank and a cathode circulation pump which are sequentially connected through a pipeline according to the conveying and circulating direction of the cathode electrolyte, the output end of the cathode circulation pump is connected to the electrolyte inlet of the cathode chamber, and the electrolyte outlet of the cathode chamber is connected to the cathode circulation tank through a pipeline; and an electrolytic finished product outlet and an electrolytic gas outlet are respectively arranged at the upper part of the anode circulating tank and the upper part of the cathode circulating tank.
According to the technical scheme, the anode circulating pump and the cathode circulating pump are adopted to respectively carry out large-flow circulation on the anolyte and the catholyte, products with the concentration reaching the standard in the electrolytic process overflow from an electrolytic finished product outlet at the upper part of the circulating tank, supplementary materials (electrolyte) are added at the lower part of the circulating tank through the metering pump so as to compensate and balance the concentration of the electrolyte in the circulating tank, and the circulating pump continuously pumps the electrolyte in the circulating tank into the electrolytic tank, so that the stability of an electrolytic system is achieved. Because the supplementary materials (electrolyte) are continuously added, the concentration of the electrolyte can be continuously kept stable, and the product and the materials are fully separated, the quality of the electrolytic product is high, and the high-quality electrolysis of the inorganic salt under the condition of small batch is realized.
In the utility model, the supplementary material (electrolyte) is controlled by the metering pump and can be adjusted at any time.
As a further improvement of the utility model, an anode defoaming net is arranged at the upper part in the anode circulating tank.
Similarly, a cathode defoaming net is arranged at the upper part in the cathode circulating tank.
Preferably, the defoaming net is a stainless steel net.
Bubbles generated in the electrolytic process are eliminated by the defoaming net, so that the pressure in the electrolyte circulation loop can be maintained stable, and the adverse effect of the steam pocket on the electrolysis is effectively avoided.
In the utility model, the anode circulating groove and the cathode circulating groove are respectively provided with a heat exchange device.
The temperature of the electrolyte can be accurately controlled by respectively arranging the independent heat exchange devices on the anode circulating tank and the cathode circulating tank, so that the electrolysis efficiency and the electrolysis quality can be improved.
The utility model discloses in, be provided with temperature sensor, pressure sensor and flow sensor on anolyte circulation circuit and the catholyte circulation circuit respectively.
Preferably, the temperature sensor, the pressure sensor and the flow sensor are all arranged on a section of pipeline between the circulating pump and the electrolytic bath.
The temperature sensor, the pressure sensor and the flow sensor are respectively arranged on the anolyte circulating loop and the catholyte circulating loop, so that the accuracy and controllability of electrolysis process parameters are facilitated, and the electrolysis quality is further improved.
In the utility model, the electrolytic gas outlet of the anode circulating tank and the electrolytic gas outlet of the cathode circulating tank are respectively connected with a gas absorption device.
The utility model discloses a device suitable for inorganic salt electrolysis its operating principle of electrolysis inorganic salt is: inorganic salt as raw material exists in the form of cation and anion in water, water in the cathode chamber forms hydrogen ion and hydroxyl ion under electrolysis condition, positive valence ion in the anode chamber enters the cathode chamber through a diaphragm and combines with hydroxyl ion in the cathode to produce hydroxide, the hydroxide is output from an electrolysis finished product outlet of the cathode circulation tank, and the hydrogen ion is reduced into hydrogen after getting electrons and is released through an electrolysis gas outlet. The anions of the anode compartment lose their electrons to produce the desired product.
The utility model discloses an electrolysis unit can match different diaphragms and use, and the material is not mixed during the electrolysis, and the business turn over and the play of material all are independent system, can be applicable to the different materials of electrolysis, can all carry out the electrolysis to salt, acid etc. that accord with electrochemistry electrolysis theory, and the device flexibility is good, is applicable to the fine chemistry industry. In addition, compared with the traditional chemical synthesis process, the process route is short, other impurities do not need to be added, and the comprehensive energy consumption is low.
The utility model has the advantages that:
first, the utility model discloses a device suitable for inorganic salt electrolysis adopts anode circulating pump and cathode circulating pump to carry out large-traffic circulation to anolyte and catholyte respectively, and the product that concentration is up to standard among the electrolytic process is added through the measuring pump in the circulating tank lower part by the export overflow of the electrolysis finished product on circulating tank upper portion, supplementary material (electrolyte) to compensate and balance the concentration of circulating tank inner electrolyte, the circulating pump constantly takes out circulating tank inner electrolyte into the electrolysis trough, has reached electrolysis system's stability from this. Because the supplementary materials (electrolyte) are continuously added, the concentration of the electrolyte can be continuously kept stable, and the product and the materials are fully separated, the quality of the electrolytic product is high, and the high-quality electrolysis of the inorganic salt under the condition of small batch is realized.
Second, the utility model discloses a device suitable for inorganic salt electrolysis, the bubble that produces among the electrolytic process can be eliminated by the defoaming net to can maintain the stability of electrolyte circulation circuit intermediate pressure, and effectively avoid the steam pocket to the adverse effect of electrolysis.
Third, the utility model discloses a device suitable for inorganic salt electrolysis can accomplish the temperature of accurate control electrolyte through set up independent heat exchange device respectively on positive pole circulation groove and negative pole circulation groove to can improve the electrolytic efficiency and the electrolytic quality.
Fourth, the utility model discloses a device suitable for inorganic salt electrolysis is provided with temperature sensor, pressure sensor and flow sensor on anolyte circulation circuit and catholyte circulation circuit respectively, is favorable to the accurate controllable of electrolysis technological parameter to further improve the electrolytic quality.
Fifth, the utility model discloses a device suitable for inorganic salt electrolysis can match different diaphragms and use, and the material is not mixed during the electrolysis, and the business turn over of material all is independent system with going out, can be applicable to the different materials of electrolysis, can all carry out the electrolysis to salt, acid etc. that accord with electrochemistry electrolysis theory, and the device flexibility is good, is applicable to the fine chemistry industry. In addition, compared with the traditional chemical synthesis process, the process route is short, other impurities do not need to be added, and the comprehensive energy consumption is low.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus suitable for inorganic salt electrolysis according to the present invention.
In the figure: 1. the device comprises an ionic membrane electrolytic cell, 2, an anode chamber, 3, an anolyte circulation loop, 4, a cathode chamber, 5, a catholyte circulation loop, 6, a pipeline, 7, an anolyte supplement metering pump, 8, an anolyte circulation tank, 9, an anolyte circulation pump, 10, a catholyte supplement metering pump, 11, a cathode circulation tank, 12, a cathode circulation pump, 13, an electrolysis finished product outlet, 14, an electrolysis gas outlet, 15, an anode defoaming net, 16, a cathode defoaming net, 17, a heat exchange device, 18, a temperature sensor, 19, a pressure sensor, 20, a flow sensor, 21 and a gas absorption device.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 shows an embodiment of an apparatus suitable for inorganic salt electrolysis according to the present invention, which includes an ionic membrane electrolyzer 1, an anolyte circulation loop 3 connected to an anode chamber 2 of the ionic membrane electrolyzer 1, and a catholyte circulation loop 5 connected to a cathode chamber 4 of the ionic membrane electrolyzer 1; the anolyte circulation loop 3 comprises an anolyte supplement metering pump 7, an anolyte circulation tank 8 and an anolyte circulation pump 9 which are sequentially connected through a pipeline 6 according to the conveying and circulating direction of anolyte, the output end of the anolyte circulation pump 9 is connected to an electrolyte inlet of the anode chamber 2, and an electrolyte outlet of the anode chamber 2 is connected to the anolyte circulation tank 8 through a pipeline; the catholyte circulation loop 5 comprises a catholyte supplement metering pump 10, a catholyte circulation tank 11 and a catholyte circulation pump 12 which are sequentially connected through a pipeline 6 according to the conveying and circulating direction of catholyte, the output end of the catholyte circulation pump 12 is connected to the electrolyte inlet of the cathode chamber 2, and the electrolyte outlet of the cathode chamber 2 is connected to the catholyte circulation tank 11 through a pipeline; an electrolysis finished product outlet 13 and an electrolysis gas outlet 14 are respectively arranged at the upper part of the anode circulating groove 8 and the upper part of the cathode circulating groove 11.
In the technical scheme, the anode circulating pump 9 and the cathode circulating pump 12 are adopted to respectively carry out large-flow circulation on the anolyte and the catholyte, products with the concentration reaching the standard overflow from an electrolysis finished product outlet 13 at the upper part of the circulating tank in the electrolysis process, supplementary materials (electrolyte) are added at the lower part of the circulating tank through the metering pumps 7 and 10 so as to compensate and balance the concentration of the electrolyte in the circulating tanks 8 and 11, and the circulating pumps 9 and 12 continuously pump the electrolyte in the circulating tanks 8 and 11 into the electrolytic tank 1, so that the stability of the electrolysis system is achieved. Because the supplementary materials (electrolyte) are continuously added, the concentration of the electrolyte can be continuously kept stable, and the product and the materials are fully separated, the quality of the electrolytic product is high, and the high-quality electrolysis of the inorganic salt under the condition of small batch is realized.
In the utility model, the supplementary material (electrolyte) is controlled by the metering pump 7 and the metering pump 10 and can be adjusted at any time.
As a further improvement of the utility model, an anode defoaming net 15 is arranged at the upper part in the anode circulating tank 8.
Similarly, a cathode defoaming net 16 is provided at an upper position in the cathode circulation tank 11.
Preferably, the defoaming nets 15 and 16 are stainless steel nets.
Bubbles generated during the electrolysis are eliminated by the defoaming nets 15 and 16, so that the pressure in the electrolyte circulation loops 3 and 5 can be maintained stable, and the adverse effect of the steam drum on the electrolysis can be effectively avoided.
In the utility model, the anode circulating tank 8 and the cathode circulating tank 11 are respectively provided with a heat exchange device 17.
The temperature of the electrolyte can be precisely controlled by providing the separate heat exchange devices 17 in the anode circulation tank 8 and the cathode circulation tank 11, respectively, so that the efficiency of electrolysis and the quality of electrolysis can be improved.
In the utility model discloses, be provided with temperature sensor 18, pressure sensor 19 and flow sensor 20 on anolyte circulation circuit 3 and the catholyte circulation circuit 5 respectively.
Preferably, the temperature sensor 18, the pressure sensor 19 and the flow sensor 20 are all arranged on a section of the pipeline from the circulation pumps 9, 12 to the electrolytic cell 1.
The temperature sensor 18, the pressure sensor 19 and the flow sensor 20 are respectively arranged on the anolyte circulating loop 3 and the catholyte circulating loop 5, which is beneficial to the accurate control of electrolysis process parameters, thereby further improving the electrolysis quality.
In the utility model, the electrolytic gas outlet 14 of the anode circulating tank 8 and the electrolytic gas outlet 14 of the cathode circulating tank 11 are respectively connected with a gas absorption device 21.
The utility model discloses a device suitable for inorganic salt electrolysis its operating principle of electrolysis inorganic salt is: inorganic salt as raw material exists in the form of cation and anion in water, water in the cathode chamber 4 forms hydrogen ion and hydroxyl ion under electrolysis condition, positive valence ion in the anode chamber 2 enters the cathode chamber 4 through a diaphragm and combines with hydroxyl ion of the cathode to produce hydroxide, the hydroxide is output from an electrolysis finished product outlet 13 of the cathode circulation tank, and the hydrogen ion is reduced into hydrogen after getting electrons and is released through an electrolysis gas outlet. The anions in the anode chamber 2 lose their electrons to produce the desired product, which is output from the electrolysis product outlet 13.
The utility model discloses an electrolysis unit can match different diaphragms and use, and the material is not mixed during the electrolysis, and the business turn over and the play of material all are independent system, can be applicable to the different materials of electrolysis, can all carry out the electrolysis to salt, acid etc. that accord with electrochemistry electrolysis theory, and the device flexibility is good, is applicable to the fine chemistry industry. In addition, compared with the traditional chemical synthesis process, the process route is short, other impurities do not need to be added, and the comprehensive energy consumption is low.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An apparatus suitable for inorganic salt electrolysis, which is characterized by comprising an ionic membrane electrolytic cell, an anolyte circulation loop connected with an anode chamber of the ionic membrane electrolytic cell, and a catholyte circulation loop connected with a cathode chamber of the ionic membrane electrolytic cell; the anode electrolyte circulating loop comprises an anode electrolyte supplementing metering pump, an anode circulating tank and an anode circulating pump which are sequentially connected through a pipeline according to the conveying and circulating direction of the anode electrolyte, the output end of the anode circulating pump is connected to the electrolyte inlet of the anode chamber, and the electrolyte outlet of the anode chamber is connected to the anode circulating tank through a pipeline; the cathode electrolyte circulation loop comprises a cathode electrolyte supplement metering pump, a cathode circulation tank and a cathode circulation pump which are sequentially connected through a pipeline according to the conveying and circulating direction of the cathode electrolyte, the output end of the cathode circulation pump is connected to the electrolyte inlet of the cathode chamber, and the electrolyte outlet of the cathode chamber is connected to the cathode circulation tank through a pipeline; and an electrolytic finished product outlet and an electrolytic gas outlet are respectively arranged at the upper part of the anode circulating tank and the upper part of the cathode circulating tank.
2. The apparatus of claim 1, wherein an anode foam-eliminating net is disposed at an upper position in the anode circulation tank.
3. The apparatus of claim 1, wherein a cathode foam screen is disposed at an upper position in the cathode circulation tank.
4. An apparatus suitable for the electrolysis of inorganic salts according to claim 2 or 3, wherein the mesh is a stainless steel mesh.
5. The apparatus of claim 1, wherein the anode circulation tank and the cathode circulation tank are respectively provided with a heat exchange device.
6. The apparatus of claim 1, wherein the anolyte circulation loop and the catholyte circulation loop are each provided with a temperature sensor, a pressure sensor, and a flow sensor.
7. The apparatus of claim 6, wherein the temperature sensor, the pressure sensor and the flow sensor are arranged on a section of pipeline between the circulating pump and the electrolytic bath.
8. The apparatus of claim 1, wherein a gas absorption device is further connected to the electrolytic gas outlet of the anode circulation tank and the electrolytic gas outlet of the cathode circulation tank, respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921305019.1U CN210458383U (en) | 2019-08-13 | 2019-08-13 | Device suitable for inorganic salt electrolysis |
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| CN201921305019.1U CN210458383U (en) | 2019-08-13 | 2019-08-13 | Device suitable for inorganic salt electrolysis |
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| CN210458383U true CN210458383U (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853387A (en) * | 2020-12-29 | 2021-05-28 | 中船重工（邯郸）派瑞特种气体有限公司 | Heat exchange device suitable for preparing nitrogen trifluoride gas by electrolysis method and electrolysis method |
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2019
- 2019-08-13 CN CN201921305019.1U patent/CN210458383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853387A (en) * | 2020-12-29 | 2021-05-28 | 中船重工（邯郸）派瑞特种气体有限公司 | Heat exchange device suitable for preparing nitrogen trifluoride gas by electrolysis method and electrolysis method |
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