CN110205646B - Small-size pilot scale experimental apparatus of electrolysis trough - Google Patents
Small-size pilot scale experimental apparatus of electrolysis trough Download PDFInfo
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- CN110205646B CN110205646B CN201910552828.0A CN201910552828A CN110205646B CN 110205646 B CN110205646 B CN 110205646B CN 201910552828 A CN201910552828 A CN 201910552828A CN 110205646 B CN110205646 B CN 110205646B
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- 238000011020 pilot scale process Methods 0.000 title claims abstract description 24
- 238000005868 electrolysis reaction Methods 0.000 title claims description 17
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 239000003792 electrolyte Substances 0.000 claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 238000002474 experimental method Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000002572 peristaltic effect Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical group [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 17
- 238000012795 verification Methods 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a small pilot-scale experimental device for an electrolytic tank, which comprises an electrolytic tank for experiments, a direct-current power supply, an anode circulation tank and a cathode circulation tank for providing anode liquid and cathode liquid for the electrolytic tank, and a hot water heating circulation device respectively connected with the anode circulation tank and the cathode circulation tank, wherein an anode liquid supply pipeline communicated with an anode chamber of the electrolytic tank is arranged on the anode circulation tank, an anode liquid return pipeline communicated with the anode circulation tank is arranged on the anode chamber of the electrolytic tank, a cathode liquid supply pipeline communicated with a cathode chamber of the electrolytic tank is arranged on the cathode circulation tank, a cathode liquid return pipeline communicated with the cathode circulation tank is arranged on the cathode chamber of the electrolytic tank, an ammeter and a voltmeter are arranged between the direct-current power supply and the anode and the cathode, and electrolyte temperature sensors are respectively arranged on the anode liquid return pipeline and the cathode liquid return pipeline. The invention can monitor the application condition of the electrolytic cell for the test in real time, thereby realizing the verification of the performance of the electrolytic cell.
Description
Technical Field
The invention relates to the technical field of electrolytic tanks, in particular to a small pilot-scale experimental device for an electrolytic tank.
Background
The electrolytic cell is composed of a cell body, an anode, a cathode and the like arranged in the cell body, and an anode chamber and a cathode chamber are separated by a diaphragm. The electrolyte is divided into three types, namely an aqueous solution electrolytic tank, a molten salt electrolytic tank and a nonaqueous solution electrolytic tank. When the direct current passes through the electrolytic cell, oxidation reaction occurs at the interface between the anode and the solution, and reduction reaction occurs at the interface between the cathode and the solution, so as to prepare the required product.
In order to improve the current efficiency of the electrolytic cell, reduce the cell voltage and save energy consumption, the electrolytic cell structure, the electrode, the diaphragm material and the like are required to be optimally designed so as to realize the optimization of the performance of the electrolytic cell.
Disclosure of Invention
The invention aims to provide a small pilot-scale experimental device for an electrolytic cell, and the application condition of the electrolytic cell for the experiment is monitored in real time through the experimental device so as to verify whether the structure of the electrolytic cell can meet the requirements of performance, service life and the like. The specific technical scheme is as follows:
the utility model provides a small-size pilot scale experimental apparatus of electrolysis trough, includes the electrolysis trough that experimental usefulness, is used for connecting positive pole and the direct current power supply of negative pole in the electrolysis trough, be used for respectively for the electrolysis trough provides positive pole circulation tank and the negative pole circulation tank of electrolyte, connect respectively positive pole circulation tank and the hot water heating cycle device of negative pole circulation tank, be provided with the intercommunication on the positive pole circulation tank the positive pole liquid feed line of the positive pole room of electrolysis trough, be provided with the intercommunication on the positive pole room of electrolysis trough the positive pole liquid return line of positive pole circulation tank, be provided with the intercommunication on the negative pole circulation tank the negative pole liquid feed line of the negative pole room of electrolysis trough, be provided with on the link between direct current power supply with positive pole and negative pole and be provided with ampere meter and the voltmeter that is used for real-time detection electrolysis time current and voltage on positive pole liquid return line and the negative pole return line are provided with electrolyte temperature sensor respectively.
In the invention, an electrolyte conveying magnetic pump, a metal tube float flowmeter and a diaphragm regulating valve are respectively arranged on the anolyte liquid supply pipeline and the catholyte liquid supply pipeline.
According to the technical scheme, the electrolyte is conveyed into the electrolytic tank through the anolyte supply pipeline and the catholyte supply pipeline which are connected with the electrolytic tank for the test, and meanwhile, the ammeter and the voltmeter are used for monitoring the change conditions of the current and the voltage in the electrolysis in real time, so that the performance condition of the electrolytic tank in the set test period can be judged.
In addition, through setting up tubular metal resonator float flowmeter, can monitor the flow change condition of electrolyte to be favorable to carrying out comprehensive judgement to the performance condition of electrolysis trough.
As a preferable scheme of the invention, the anode circulation tank and the cathode circulation tank are both provided with a double-layer shell structure, the double-layer shell comprises an inner shell for storing and circulating electrolyte and an outer shell for insulating the electrolyte, a heating cavity is formed between the inner shell and the outer shell, and the heating cavity is communicated with the hot water heating circulation device through a hot water inlet and a hot water outlet which are arranged on the outer shell.
Preferably, circulation tank temperature sensors for monitoring the electrolyte temperature are respectively arranged inside the inner shells of the anode circulation tank and the cathode circulation tank.
Preferably, circulation tank liquid level switches are respectively arranged in the inner shells of the anode circulation tank and the cathode circulation tank.
Preferably, the shell wall of the outer shell is provided with an intermediate heat-insulating layer, and the intermediate heat-insulating layer is an aluminum silicate heat-insulating layer.
The heat preservation structure and the temperature control structure are arranged on the anode circulation tank and the cathode circulation tank, so that the accurate control of the temperature of the electrolyte is facilitated, and the energy-saving effect is good.
The small-sized pilot experiment device for the electrolytic tank also comprises an electrolyte raw material barrel and an electrolyte finished product barrel, wherein an electrolyte raw material inlet and an electrolyte overflow port are arranged on the inner shells of the anode circulation tank and the cathode circulation tank, the electrolyte raw material barrel is connected with the electrolyte raw material inlet through a peristaltic pump and a pipeline, and the electrolyte finished product barrel is connected with the electrolyte overflow port through a pipeline.
In the test process, electrolyte in the circulating tank can be sampled at regular time, and a peristaltic pump is started to supplement electrolyte raw materials into the circulating tank when needed by analyzing the concentration condition of the electrolyte so as to meet the requirement that the electrolyte in the test can reach the set concentration.
Preferably, the anode circulation tank and the cathode circulation tank are connected with a gas purifying treatment device through pipelines, and the gas purifying treatment device comprises a washing tower and a fan arranged at the top of the washing tower.
Above-mentioned through setting up gas purification device, improved test environment greatly, its feature of environmental protection is better.
As a further improvement of the invention, the anode chamber and the cathode chamber of the electrolytic tank are respectively connected with a cleaning pipeline system, the cleaning pipeline system comprises a cleaning liquid input pipeline and a cleaning liquid discharge pipeline, the cleaning liquid input pipeline is provided with a cleaning barrel and a cleaning liquid inlet valve, and the cleaning liquid discharge pipeline is provided with a liquid discharge valve and a waste liquid collecting barrel.
The cleaning pipeline system is arranged, so that the maintenance of the experimental device is greatly facilitated.
In order to further optimize the performance of the test device, the small-sized pilot-scale test device of the electrolytic tank further comprises a PLC (programmable logic controller) for controlling the temperature of electrolyte in the anode circulation tank and the cathode circulation tank, wherein the hot water heating circulation device comprises a hot water heating barrel, a heater arranged in the hot water heating barrel, a hot water temperature sensor and a hot water level switch, a hot water conveying magnetic pump for hot water circulation, and a circulating heating liquid inlet valve for adjusting the circulating quantity of the hot water, and the circulating tank temperature sensor, the heater, the hot water temperature sensor, the hot water level switch, the circulating tank level switch and the hot water conveying magnetic pump are respectively connected with the PLC.
Preferably, the cyclic heating liquid inlet valve is an electric regulation cyclic heating liquid inlet valve, and the electric regulation cyclic heating liquid inlet valve is connected with a PLC controller.
According to the technical scheme, the electrolyte temperature control adopts a scheme of two-stage temperature control, namely, the temperature of circulating hot water is firstly obtained by a hot water temperature sensor and PLC control is carried out, the electrolyte temperature in the circulating tank is obtained by the circulating tank temperature sensor on the basis, and then the flow of the circulating hot water is regulated by the circulating heating liquid inlet valve so as to realize more accurate and more sensitive control of the electrolyte temperature.
In addition, the circulating tank liquid level switch is arranged on the inner shell of the circulating tank, so that the defect of liquid shortage caused by faults in the circulating tank can be prevented, and the safety and the reliability of the experimental device are improved.
In the invention, the anode circulation tank and the cathode circulation tank are also respectively connected with the waste liquid collecting cylinder through a liquid discharge valve and a pipeline.
In the invention, a glass tube liquid level meter is arranged on the washing tower.
In the invention, a circulating heating check valve is arranged on a circulating pipeline of the hot water heating circulating device.
The working flow of the small pilot-scale experimental device for the electrolytic tank is as follows:
1. the cathode circulation tank and the anode circulation tank are heated by the hot water heating barrel, and the temperature of the electrolyte is controlled to be stabilized within a set temperature range by the PLC.
2. The anode liquid in the anode circulation tank enters the anode chamber from the circulation tank liquid outlet of the anode circulation tank through a magnetic pump and a metal pipe float flowmeter, and flows back to the anode circulation tank from the liquid outlet at the upper part of the anode chamber, the gas in the anode circulation tank is discharged through a fan and a washing tower, and a plurality of liquid is discharged into an electrolyte finished product barrel through the circulation tank overflow port, so that the temperature of the electrolytic tank is raised to reach the required running condition through the anode liquid.
3. The cathode liquid in the cathode circulation tank enters the cathode chamber from the circulation tank liquid outlet of the cathode circulation tank through a magnetic pump and a metal pipe float flowmeter, and flows back to the cathode circulation tank from the liquid outlet at the upper part of the cathode chamber, the gas in the cathode circulation tank is discharged through a fan and a washing tower, and a plurality of liquid is discharged into an electrolyte finished product barrel through the circulation tank overflow port, so that the temperature of the electrolytic tank reaches the required running condition through the cathode liquid.
4. And after the running environment is reached, the running rectification power supply is regulated to the specified current, and real-time recording is carried out through the recording equipment.
The beneficial effects of the invention are as follows:
firstly, according to the small pilot-scale experimental device for the electrolytic tank, the electrolyte is conveyed into the electrolytic tank through the anolyte supply pipeline and the catholyte supply pipeline which are connected with the electrolytic tank for testing, and meanwhile, the change conditions of current and voltage during electrolysis are monitored in real time by the ammeter and the voltmeter, so that the performance condition of the electrolytic tank in a set test period can be judged.
Secondly, according to the small pilot-scale experimental device for the electrolytic tank, provided by the invention, the flow change condition of the electrolyte can be monitored by arranging the metal pipe float flowmeter, so that the comprehensive judgment of the performance condition of the electrolytic tank is facilitated.
Third, the small pilot-scale experimental device for the electrolytic tank is beneficial to accurate control of the temperature of the electrolyte and has good energy-saving effect due to the heat preservation structure and the temperature control structure arranged on the anode circulation tank and the cathode circulation tank.
Fourth, in the small pilot-scale experimental device for the electrolytic tank, a peristaltic pump can be started to supplement electrolyte raw materials into the circulating tank in the experimental process, so that the electrolyte in the experimental process can reach a set concentration.
Fifth, the small pilot-scale experimental device for the electrolytic tank greatly improves the experimental environment by arranging the gas purifying treatment device, and has better environmental protection.
Sixth, the invention relates to a small-scale pilot-scale experimental device of an electrolytic tank, the electrolyte temperature control adopts a scheme of two-stage temperature control, namely, the temperature of circulating hot water is firstly obtained by a hot water temperature sensor and PLC control is carried out, the temperature of the electrolyte in the circulating tank is obtained by the circulating tank temperature sensor on the basis, and then the flow of the circulating hot water is regulated by a circulating heating liquid inlet valve so as to realize more accurate and more sensitive control of the temperature of the electrolyte.
Seventh, according to the small pilot-scale experimental device for the electrolytic tank, the circulating tank liquid level switch is arranged on the inner shell of the circulating tank, so that the condition that liquid is lacking in the circulating tank due to faults can be prevented, and the safety and reliability of the experimental device are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a small pilot plant for an electrolytic cell according to the present invention;
FIG. 2 is an enlarged view of a portion of the web of FIG. 1 after dividing it into four segments according to four quadrants, at a first quadrant location;
FIG. 3 is an enlarged partial view of the web of FIG. 1 after being divided into four segments according to four quadrants, with the second quadrant position;
FIG. 4 is an enlarged view of a portion of the web of FIG. 1 after it has been divided into four segments according to four quadrants, at the third quadrant location;
FIG. 5 is an enlarged view of a portion of the web of FIG. 1 in a fourth quadrant position after the web has been divided into four segments;
fig. 6 is a schematic structural view of the circulation tanks (anode circulation tank and cathode circulation tank) in fig. 1;
fig. 7 is a top view of fig. 6.
In fig. 6 and 7: 1. the electrolyte heating device comprises an inner shell, 2, an outer shell, 3, a heating cavity, 4, a hot water inlet, 5, a hot water outlet, 6, a circulating tank temperature sensor, 7, a circulating tank liquid level switch, 8, an intermediate heat-insulating layer, 9, an electrolyte raw material inlet, 10, an electrolyte overflow port, 11, a circulating tank liquid outlet, 12 and a circulating tank liquid return port.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
The embodiment of the small-sized pilot-scale experimental device for the electrolytic tank comprises an electrolytic tank for experiments, a direct-current power supply for connecting an anode and a cathode in the electrolytic tank, an anode circulation tank and a cathode circulation tank for respectively providing electrolyte for the electrolytic tank, and a hot water heating circulation device for respectively connecting the anode circulation tank and the cathode circulation tank, wherein an anode liquid supply pipeline communicated with an anode chamber of the electrolytic tank is arranged on the anode circulation tank, an anode liquid return pipeline communicated with the anode circulation tank is arranged on an anode chamber of the electrolytic tank, a cathode liquid supply pipeline communicated with a cathode chamber of the electrolytic tank is arranged on the cathode circulation tank, a cathode liquid return pipeline communicated with the cathode circulation tank is arranged on a cathode chamber of the electrolytic tank, a current meter and a voltage meter for detecting current and voltage in real time are arranged on a connecting line between the direct-current power supply and the anode and the cathode, and electrolyte temperature sensors are respectively arranged on the anode liquid return pipeline and the cathode liquid return pipeline.
In this embodiment, an electrolyte delivery magnetic pump, a metal tube float flowmeter and a diaphragm regulating valve are respectively arranged on the anolyte supply pipeline and the catholyte supply pipeline.
According to the technical scheme, the electrolyte is conveyed into the electrolytic tank through the anolyte supply pipeline and the catholyte supply pipeline which are connected with the electrolytic tank for the test, and meanwhile, the ammeter and the voltmeter are used for monitoring the change conditions of the current and the voltage in the electrolysis in real time, so that the performance condition of the electrolytic tank in the set test period can be judged.
In addition, through setting up tubular metal resonator float flowmeter, can monitor the flow change condition of electrolyte to be favorable to carrying out comprehensive judgement to the performance condition of electrolysis trough.
As a preferable scheme of the embodiment, the anode circulation tank and the cathode circulation tank are both provided with a double-layer shell structure, the double-layer shell comprises an inner shell 1 for storing and circulating electrolyte and an outer shell 2 for insulating the electrolyte, a heating cavity 3 is formed between the inner shell 1 and the outer shell 2, and the heating cavity 3 is communicated with the hot water heating circulation device through a hot water inlet 4 and a hot water outlet 5 which are arranged on the outer shell 2.
Preferably, the inside of the inner casing 1 of the anode circulation tank and the cathode circulation tank is provided with circulation tank temperature sensors 6 for monitoring the electrolyte temperature, respectively.
Preferably, the inside of the inner shell 1 of the anode circulation tank and the cathode circulation tank is respectively provided with a circulation tank liquid level switch 7.
Preferably, the wall of the outer shell 2 is provided with an intermediate heat-insulating layer 8, and the intermediate heat-insulating layer 8 is an aluminum silicate heat-insulating layer.
The heat preservation structure and the temperature control structure are arranged on the anode circulation tank and the cathode circulation tank, so that the accurate control of the temperature of the electrolyte is facilitated, and the energy-saving effect is good.
The small-size pilot scale experimental apparatus of electrolysis trough still includes electrolyte former feed bucket and electrolyte finished product bucket, be provided with electrolyte raw materials import 9 and electrolyte overflow mouth 10 on the inner shell 1 of positive pole circulation groove and negative pole circulation groove, electrolyte former feed bucket passes through peristaltic pump and pipe connection electrolyte raw materials import 9, electrolyte finished product bucket passes through the pipe connection electrolyte overflow mouth 10.
In the test process, electrolyte in the circulating tank can be sampled at regular time, and a peristaltic pump is started to supplement electrolyte raw materials into the circulating tank when needed by analyzing the concentration condition of the electrolyte so as to meet the requirement that the electrolyte in the test can reach the set concentration.
Preferably, the anode circulation tank and the cathode circulation tank are connected with a gas purifying treatment device through pipelines, and the gas purifying treatment device comprises a washing tower and a fan arranged at the top of the washing tower.
Above-mentioned through setting up gas purification device, improved test environment greatly, its feature of environmental protection is better.
As a further improvement of the embodiment, the anode chamber and the cathode chamber of the electrolytic tank are respectively connected with a cleaning pipeline system, the cleaning pipeline system comprises a cleaning liquid input pipeline and a cleaning liquid discharge pipeline, the cleaning liquid input pipeline is provided with a cleaning barrel and a cleaning liquid inlet valve, and the cleaning liquid discharge pipeline is provided with a liquid discharge valve and a waste liquid collecting barrel.
The cleaning pipeline system is arranged, so that the maintenance of the experimental device is greatly facilitated.
In order to further optimize the performance of the test device, the small-sized pilot-scale test device for the electrolytic tank of the embodiment further comprises a PLC (programmable logic controller) (not shown in the figure) for controlling the temperature of electrolyte in the anode circulation tank and the cathode circulation tank, wherein the hot water heating circulation device comprises a hot water heating barrel, a heater arranged in the hot water heating barrel, a hot water temperature sensor and a hot water level switch, a hot water conveying magnetic pump for carrying out hot water circulation, and a circulating heating liquid inlet valve for adjusting the circulating quantity of the hot water, and the circulating tank temperature sensor, the heater, the hot water temperature sensor, the hot water level switch, the circulating tank liquid level switch and the hot water conveying magnetic pump are respectively connected with the PLC.
Preferably, the cyclic heating liquid inlet valve is an electric regulation cyclic heating liquid inlet valve, and the electric regulation cyclic heating liquid inlet valve is connected with a PLC controller.
According to the technical scheme, the electrolyte temperature control adopts a scheme of two-stage temperature control, namely, the temperature of circulating hot water is firstly obtained by a hot water temperature sensor and PLC control is carried out, the electrolyte temperature in the circulating tank is obtained by the circulating tank temperature sensor on the basis, and then the flow of the circulating hot water is regulated by the circulating heating liquid inlet valve so as to realize more accurate and more sensitive control of the electrolyte temperature.
In addition, in the embodiment, the circulating tank liquid level switch 7 is arranged on the inner shell 1 of the circulating tank, so that the defect of liquid in the circulating tank due to faults can be prevented, and the safety and the reliability of the experimental device are improved.
In this embodiment, the anode circulation tank and the cathode circulation tank are also connected to the waste liquid collection cylinder through a drain valve and a pipeline, respectively.
In this embodiment, a glass tube level gauge is provided on the scrubber.
In this embodiment, a circulation heating check valve is disposed on a circulation pipeline of the hot water heating circulation device.
The working flow of the small pilot-scale experimental device for the electrolytic tank adopting the embodiment is as follows:
1. the cathode circulation tank and the anode circulation tank are heated by the hot water heating barrel, and the temperature of the electrolyte is controlled to be stabilized within a set temperature range by the PLC.
2. The anode liquid in the anode circulation tank enters the anode chamber from the circulation tank liquid outlet of the anode circulation tank through a magnetic pump and a metal pipe float flowmeter, and flows back to the anode circulation tank from the liquid outlet at the upper part of the anode chamber, the gas in the anode circulation tank is discharged through a fan and a washing tower, and a plurality of liquid is discharged into an electrolyte finished product barrel through the circulation tank overflow port, so that the temperature of the electrolytic tank is raised to reach the required running condition through the anode liquid.
3. The cathode liquid in the cathode circulation tank enters the cathode chamber from the circulation tank liquid outlet of the cathode circulation tank through a magnetic pump and a metal pipe float flowmeter, and flows back to the cathode circulation tank from the liquid outlet at the upper part of the cathode chamber, the gas in the cathode circulation tank is discharged through a fan and a washing tower, and a plurality of liquid is discharged into an electrolyte finished product barrel through the circulation tank overflow port, so that the temperature of the electrolytic tank reaches the required running condition through the cathode liquid.
4. And after the running environment is reached, the running rectification power supply is regulated to the specified current, and real-time recording is carried out through the recording equipment.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (5)
1. The small pilot-scale experimental device for the electrolytic tank is characterized by comprising an electrolytic tank for experiments, a direct current power supply for connecting an anode and a cathode in the electrolytic tank, an anode circulation tank and a cathode circulation tank for respectively providing anode liquid and cathode liquid serving as electrolyte for the electrolytic tank, and a hot water heating circulation device for respectively connecting the anode circulation tank and the cathode circulation tank, wherein an anode liquid supply pipeline for communicating an anode chamber of the electrolytic tank is arranged on the anode circulation tank, an anode liquid return pipeline for communicating the anode circulation tank is arranged on the anode chamber of the electrolytic tank, a cathode liquid supply pipeline for communicating a cathode chamber of the electrolytic tank is arranged on the cathode circulation tank, a cathode liquid return pipeline for communicating the cathode circulation tank is arranged on the cathode chamber of the electrolytic tank, an ammeter and a voltmeter for detecting current and voltage in real time during electrolysis are arranged on a connecting line between the direct current power supply and the anode and the cathode, and an electrolyte temperature sensor is arranged on the anode liquid return pipeline and the cathode liquid return pipeline respectively;
the anolyte supply pipeline and the catholyte supply pipeline are respectively provided with an electrolyte conveying magnetic pump, a metal pipe float flowmeter and a diaphragm regulating valve; the anode circulation tank and the cathode circulation tank are both provided with a double-layer shell structure, the double-layer shell comprises an inner shell for storing and circulating electrolyte and an outer shell for insulating the electrolyte, a heating cavity is formed between the inner shell and the outer shell, and the heating cavity is communicated with the hot water heating circulation device through a hot water inlet and a hot water outlet which are arranged on the outer shell; circulation tank temperature sensors for monitoring the temperature of electrolyte are respectively arranged in the inner shells of the anode circulation tank and the cathode circulation tank;
the electrolyte raw material barrel is connected with the electrolyte raw material inlet through a peristaltic pump and a pipeline, and the electrolyte finished product barrel is connected with the electrolyte overflow port through a pipeline; the hot water heating circulation device comprises a hot water heating barrel, a heater arranged in the hot water heating barrel, a hot water temperature sensor, a hot water level switch, a hot water conveying magnetic pump for hot water circulation, a circulating heating liquid inlet valve for adjusting hot water circulation quantity, and a circulating tank temperature sensor, a heater, a hot water temperature sensor, a hot water level switch, a circulating tank liquid level switch and a hot water conveying magnetic pump which are respectively connected with the PLC.
2. The small-sized pilot-scale experimental device for the electrolytic tank according to claim 1, wherein circulating tank liquid level switches are respectively arranged in the inner shells of the anode circulating tank and the cathode circulating tank.
3. The small-sized pilot-scale experimental device for the electrolytic tank according to claim 1, wherein a middle heat-insulating layer is arranged on the wall of the outer shell, and the middle heat-insulating layer is an aluminum silicate heat-insulating layer.
4. The small-sized pilot-scale experimental device for the electrolytic tank according to claim 1, wherein the anode circulation tank and the cathode circulation tank are connected with a gas purifying treatment device through pipelines, and the gas purifying treatment device comprises a washing tower and a fan arranged at the top of the washing tower.
5. The small-sized pilot-scale experimental device for the electrolytic tank according to claim 1, wherein the anode chamber and the cathode chamber of the electrolytic tank are respectively connected with a cleaning pipeline system, the cleaning pipeline system comprises a cleaning liquid input pipeline and a cleaning liquid discharge pipeline, the cleaning liquid input pipeline is provided with a cleaning barrel and a cleaning liquid inlet valve, and the cleaning liquid discharge pipeline is provided with a liquid discharge valve and a waste liquid collecting barrel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910552828.0A CN110205646B (en) | 2019-06-25 | 2019-06-25 | Small-size pilot scale experimental apparatus of electrolysis trough |
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| CN201910552828.0A CN110205646B (en) | 2019-06-25 | 2019-06-25 | Small-size pilot scale experimental apparatus of electrolysis trough |
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| CN110205646B true CN110205646B (en) | 2024-02-02 |
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| CN114059138B (en) * | 2021-12-17 | 2023-05-23 | 天津亚泰环保设备有限公司 | Diaphragm anode circulation device |
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