Membrane electrolysis experimental device suitable for sampling analysis

Abstract

The utility model discloses a membrane electrolysis experiment device suitable for sampling analysis, which comprises an electrolytic bath, and an anode chamber gas outlet, an anode chamber liquid outlet, a cathode chamber gas outlet and a cathode chamber liquid outlet which are respectively arranged on the electrolytic bath, and the anode chamber gas outlet of the electrolytic bath is connected with an anode gas sampling bottle through a pipeline; an anode chamber liquid outlet of the electrolytic bath is connected with an anolyte sampling bottle through a pipeline, a cathode chamber gas outlet of the electrolytic bath is connected with a cathode gas sampling bottle through a pipeline, and a cathode chamber liquid outlet of the electrolytic bath is connected with a catholyte sampling bottle through a pipeline; an anode gas separation liquid outlet pipe is arranged at the bottom of the anode gas sampling bottle, and the anode gas separation liquid outlet pipe on the anode gas sampling bottle is connected to the anode liquid sampling bottle through a pipeline; a cathode gas separation liquid outlet pipe is arranged at the bottom of the cathode gas sampling bottle, and the cathode gas separation liquid outlet pipe on the cathode gas sampling bottle is connected to the cathode liquid sampling bottle through a pipeline. According to the utility model, the sampling operation of the membrane electrolysis experimental device is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic cell test technical field, concretely relates to a membrane electrolysis experimental device suitable for sampling analysis. BACKGROUND

[0002] The electrolytic cell is composed of an electrolytic cell body, an anode arranged in an anode chamber of the electrolytic cell body, a cathode arranged in a cathode chamber of the electrolytic cell body, and the like, and the anode chamber and the cathode chamber are separated by a membrane. When 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, thereby producing the desired product. A typical electrolytic cell is an electrolytic brine electrolytic cell used in the chlor-alkali industry.

[0003] In the membrane electrolysis experiment process, the electrolytic cell structure, the membrane, the electrolyte quality and the electrode coating will directly affect the electrolysis voltage and current efficiency. In addition, the concentration of the electrolysis product is also an important factor affecting the electrolysis voltage and current efficiency, and the purity of the gas is also an important parameter of electrolysis. Through electrolysis test, these electrolysis parameters can be accurately mastered, providing a technical basis for developing industrial electrolytic cells with excellent performance.

[0004] In order to quickly and conveniently master the electrolysis product concentration during electrolysis test, ensure the normal operation of electrolysis, and obtain the electrolysis voltage, current efficiency and gas purity, it is necessary to provide a membrane electrolysis experimental device convenient for sampling analysis. UTILITY MODEL CONTENT

[0005] In order to solve the above problems, the utility model provides a membrane electrolysis experimental device suitable for sampling analysis, aiming at improving the operability of the sampling operation of the membrane electrolysis experimental device, and facilitating electrolysis experiment and sampling analysis. The specific technical scheme is as follows:

[0006] A membrane electrolysis experimental device suitable for sampling analysis, comprising an electrolytic cell, an anode chamber gas outlet and an anode chamber liquid outlet arranged on an anode chamber of the electrolytic cell respectively, a cathode chamber gas outlet and a cathode chamber liquid outlet arranged on a cathode chamber of the electrolytic cell respectively, the anode chamber gas outlet of the electrolytic cell being connected with an anode gas sampling bottle through a pipeline, the anode chamber liquid outlet of the electrolytic cell being connected with an anode liquid sampling bottle through a pipeline, the cathode chamber gas outlet of the electrolytic cell being connected with a cathode gas sampling bottle through a pipeline, and the cathode chamber liquid outlet of the electrolytic cell being connected with a cathode liquid sampling bottle through a pipeline; wherein the bottom of the anode gas sampling bottle is provided with an anode gas separation liquid outlet pipe, and the anode gas separation liquid outlet pipe on the anode gas sampling bottle is connected to the anode liquid sampling bottle through a pipeline; the bottom of the cathode gas sampling bottle is provided with a cathode gas separation liquid outlet pipe, and the cathode gas separation liquid outlet pipe on the cathode gas sampling bottle is connected to the cathode liquid sampling bottle through a pipeline.

[0007] Preferably, the electrolytic cell is an electrolytic cell for electrolyzing brine, the anode gas sampling bottle is a chlorine gas sampling bottle, the anode liquid sampling bottle is an anode dilute brine sampling bottle, the cathode gas sampling bottle is a hydrogen gas sampling bottle, and the cathode liquid sampling bottle is a cathode lye sampling bottle.

[0008] In addition, the electrolytic cell in the utility model is not limited to an electrolytic cell for electrolyzing brine, but can also be an electrolytic cell for electrolyzing water to produce hydrogen, etc.

[0009] Preferably, the bottle body of the anode gas sampling bottle and the bottle body of the cathode gas sampling bottle are respectively provided with a heat sink for accelerating internal gas condensation, or a condensing device is additionally installed at the anode gas discharge port and the cathode gas discharge port.

[0010] In the utility model, the upper part of the anode gas sampling bottle is respectively provided with an anode gas inlet port and an anode gas discharge port, the pipeline of the gas outlet port of the anode chamber of the electrolytic cell is connected to the anode gas inlet port of the anode gas sampling bottle and is inserted into the internal bottom position of the anode gas sampling bottle; the upper part of the anode liquid sampling bottle is respectively provided with an anode liquid inlet port and an anode gas separation liquid receiving port, the pipeline of the liquid outlet port of the anode chamber of the electrolytic cell is connected to the anode liquid inlet port of the upper part of the anode liquid sampling bottle, and the anode gas separation liquid outlet pipe of the lower part of the anode gas sampling bottle is connected to the anode gas separation liquid receiving port of the upper part of the anode liquid sampling bottle through a pipeline.

[0011] In the utility model, the upper part of the cathode gas sampling bottle is respectively provided with a cathode gas inlet port and a cathode gas discharge port, the pipeline of the gas outlet port of the cathode chamber of the electrolytic cell is connected to the cathode gas inlet port of the cathode gas sampling bottle and is inserted into the internal bottom position of the cathode gas sampling bottle; the upper part of the cathode liquid sampling bottle is respectively provided with a cathode liquid inlet port and a cathode gas separation liquid receiving port, the pipeline of the liquid outlet port of the cathode chamber of the electrolytic cell is connected to the cathode liquid inlet port of the upper part of the cathode liquid sampling bottle, and the cathode gas separation liquid outlet pipe of the lower part of the cathode gas sampling bottle is connected to the cathode gas separation liquid receiving port of the upper part of the cathode liquid sampling bottle through a pipeline.

[0012] As a further improvement of the utility model, the lower part of the anode liquid sampling bottle is respectively provided with an anode liquid discharge port and an anode liquid sampling pipe, the upper part of the anode liquid sampling pipe enters into the inside of the anode liquid sampling bottle, and the upper end pipe opening of the anode liquid sampling pipe is located at the upper position inside the anode liquid sampling bottle, the pipeline of the liquid outlet port of the anode chamber of the electrolytic cell is connected to the anode liquid inlet port of the anode liquid sampling bottle and is inserted into the lower position inside the anode liquid sampling pipe in the anode liquid sampling bottle, and the lower end of the anode liquid sampling pipe is connected with an anode liquid sampling ball valve.

[0013] As a further improvement of the utility model, the lower part of the cathode liquid sampling bottle is respectively provided with a cathode liquid discharge outlet and a cathode liquid sampling pipe, the upper part of the cathode liquid sampling pipe enters the inside of the cathode liquid sampling bottle, and the upper end pipe opening of the cathode liquid sampling pipe is located at the upper part position inside the cathode liquid sampling bottle; the pipeline of the cathode chamber liquid outlet of the electrolytic tank is connected to the cathode liquid inlet of the cathode liquid sampling bottle and is inserted into the lower part position of the cathode liquid sampling pipe inside the cathode liquid sampling bottle; the lower end of the cathode liquid sampling pipe is connected with a cathode liquid sampling ball valve.

[0014] Preferably, the anode gas sampling bottle is provided with an anode gas sampling port at the middle position of the bottle body, and an elastic rubber plug is sealingly connected to the anode gas sampling port; an anode gas sampling syringe is also provided, which can enter the inside of the anode gas sampling bottle to sample the anode gas by puncturing the elastic rubber plug.

[0015] Preferably, the sealing connection between the elastic rubber plug and the anode gas sampling port is a threaded fit sealing connection.

[0016] Preferably, the cathode gas sampling bottle is provided with a cathode gas sampling port at the middle position of the bottle body, and an elastic rubber plug is sealingly connected to the cathode gas sampling port; a cathode gas sampling syringe is also provided, which can enter the inside of the cathode gas sampling bottle to sample the cathode gas by puncturing the elastic rubber plug.

[0017] Preferably, the sealing connection between the elastic rubber plug and the cathode gas sampling port is a threaded fit sealing connection.

[0018] As a further improvement of the utility model, the upper end pipe opening of the anode gas separation outflow pipe enters the lower part position inside the anode gas sampling bottle, and the anode gas sampling bottle is also provided with an anode gas separation outflow pipe height position adjusting device for adjusting the height position of the upper end pipe opening of the anode gas separation outflow pipe entering the anode gas sampling bottle; the upper end pipe opening of the cathode gas separation outflow pipe enters the lower part position inside the cathode gas sampling bottle, and the cathode gas sampling bottle is also provided with a cathode gas separation outflow pipe height position adjusting device for adjusting the height position of the upper end pipe opening of the cathode gas separation outflow pipe entering the cathode gas sampling bottle.

[0019] In the utility model, the anode gas discharge port of the upper part of the anode gas sampling bottle is connected with an anode gas treatment system, the cathode gas discharge port of the upper part of the cathode gas sampling bottle is connected with a cathode gas treatment system; the anode liquid discharge outlet of the lower part of the anode liquid sampling bottle is connected with an anode liquid circulation treatment system, and the cathode liquid discharge outlet of the lower part of the cathode liquid sampling bottle is connected with a cathode liquid circulation treatment system.

[0020] The utility model discloses the beneficial effect is:

[0021] First, the utility model relates to a membrane electrolysis experimental device suitable for sampling analysis, four sampling bottles are connected through pipeline on the electrolytic cell, which greatly facilitates the sampling operation of anode liquid, cathode liquid, anode gas and cathode gas in the electrolysis experiment process.

[0022] Second, the utility model relates to a membrane electrolysis experimental device suitable for sampling analysis, an anode liquid sampling tube is arranged on the anode liquid sampling bottle, the upper end of the anode liquid sampling tube is located at the upper end of the anode liquid sampling bottle, the pipeline drawn from the anode chamber liquid outlet of the electrolytic cell is inserted into the lower part of the anode liquid sampling tube in the anode gas sampling bottle, so that the pipeline drawn from the anode chamber liquid outlet of the electrolytic cell and inserted into the anode liquid sampling bottle is liquid sealed in the anode liquid sampling tube, the anode gas generated in the electrolysis process cannot overflow from the anode chamber liquid outlet, and gas-liquid separation is realized.

[0023] Third, the utility model relates to a membrane electrolysis experimental device suitable for sampling analysis, a cathode liquid sampling tube is arranged on the cathode liquid sampling bottle, the upper end of the cathode liquid sampling tube is located at the upper end of the cathode liquid sampling bottle, the pipeline drawn from the cathode chamber liquid outlet of the electrolytic cell is inserted into the lower part of the cathode liquid sampling tube in the cathode gas sampling bottle, so that the pipeline drawn from the cathode chamber liquid outlet of the electrolytic cell and inserted into the cathode liquid sampling bottle is liquid sealed in the cathode liquid sampling tube, the cathode gas generated in the electrolysis process cannot overflow from the cathode chamber liquid outlet, and gas-liquid separation is realized.

[0024] Fourth, the utility model relates to a membrane electrolysis experimental device suitable for sampling analysis, there is liquid remaining in the anode gas sampling bottle and the cathode gas sampling bottle, gas always overflows through the water seal during electrolysis, and the electrolysis running state can be directly observed.

[0025] Fifth, the utility model relates to a membrane electrolysis experimental device suitable for sampling analysis, replaceable elastic rubber plugs are arranged on the anode gas sampling bottle and the cathode gas sampling bottle, a syringe is used for gas sampling, and the operation is convenient and the syringe can be repeatedly used.

[0026] Sixth, the utility model relates to a membrane electrolysis experimental device suitable for sampling analysis, anode gas separation liquid pipe height position adjusting devices are arranged on the anode gas sampling bottle, and cathode gas separation liquid pipe height position adjusting devices are arranged on the cathode gas sampling bottle, the liquid level difference between the anode gas separation liquid in the anode gas sampling bottle and the cathode gas separation liquid in the cathode gas sampling bottle can be controlled and adjusted, the pressure difference between the anode chamber and the cathode chamber during electrolysis test is changed, and the influence of different anode-cathode pressure differences on electrolysis is explored. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Figure 1 is a structural schematic diagram of a membrane electrolysis experimental device suitable for sampling analysis according to the present application.

[0028] In the figure: 1, an anode gas sampling bottle, 2, an anode gas sampling port, 3, a cathode gas sampling bottle, 4, a cathode gas sampling port, 5, an anode liquid sampling bottle, 6, a cathode liquid sampling bottle, 7, an electrolytic cell, 8, a cathode chamber liquid outlet, 9, an anode chamber liquid outlet, 10, a cathode chamber gas outlet, 11, an anode chamber gas outlet, 12, an anode liquid sampling tube, 13, an anode liquid discharge port, 14, a cathode liquid sampling tube, 15, a cathode liquid discharge port, 16, an anode gas separation liquid outlet tube, 17, a cathode gas separation liquid outlet tube, 18, an anode gas inlet, 19, an anode gas discharge port, 20, a cathode gas inlet, 21, a cathode gas discharge port, 22, an anode liquid inlet, 23, an anode gas separation liquid receiving port, 24, a cathode liquid inlet, 25, a cathode gas separation liquid receiving port, 26, an anode liquid sampling ball valve, 27, a cathode liquid sampling ball valve. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.

[0030] As Figure 1 shown is an embodiment of a membrane electrolysis experimental device suitable for sampling analysis according to the present application, comprising an electrolytic cell 7, an anode chamber gas outlet 11 and an anode chamber liquid outlet 9 arranged on an anode chamber of the electrolytic cell 7 respectively, a cathode chamber gas outlet 10 and a cathode chamber liquid outlet 8 arranged on a cathode chamber of the electrolytic cell 7 respectively, the anode chamber gas outlet 11 of the electrolytic cell 7 being connected with an anode gas sampling bottle 1 through a pipeline, the anode chamber liquid outlet 9 of the electrolytic cell 7 being connected with an anode liquid sampling bottle 5 through a pipeline, the cathode chamber gas outlet 10 of the electrolytic cell 7 being connected with a cathode gas sampling bottle 3 through a pipeline, and the cathode chamber liquid outlet 8 of the electrolytic cell 7 being connected with a cathode liquid sampling bottle 6 through a pipeline; wherein the bottom of the anode gas sampling bottle 1 is provided with an anode gas separation liquid outlet tube 16, and the anode gas separation liquid outlet tube 16 on the anode gas sampling bottle 1 is connected to the anode liquid sampling bottle 5 through a pipeline; the bottom of the cathode gas sampling bottle 3 is provided with a cathode gas separation liquid outlet tube 17, and the cathode gas separation liquid outlet tube 17 on the cathode gas sampling bottle 3 is connected to the cathode liquid sampling bottle 6 through a pipeline.

[0031] Preferably, the electrolytic cell 7 is an electrolytic cell for electrolyzing brine, the anode gas sampling bottle 1 is a chlorine gas sampling bottle, the anode liquid sampling bottle 5 is an anode dilute brine sampling bottle, the cathode gas sampling bottle 3 is a hydrogen gas sampling bottle, and the cathode liquid sampling bottle 6 is a cathode lye sampling bottle.

[0032] In addition, the electrolytic cell in the present embodiment is not limited to an electrolytic cell for electrolyzing brine, but can also be an electrolytic cell for electrolyzing water to produce hydrogen, etc.

[0033] Preferably, the anode gas sampling bottle 1 and the cathode gas sampling bottle 3 are respectively provided with a heat sink (not shown in the figure) for accelerating the condensation of the internal gas, or a condensing device (not shown in the figure) is additionally installed at the anode gas discharge port 19 and the cathode gas discharge port 21.

[0034] In the present embodiment, the anode gas sampling bottle 1 is provided with an anode gas inlet port 18 and an anode gas discharge port 19 at the upper portion thereof, the pipeline of the anode chamber gas outlet port 11 of the electrolytic cell 7 is connected to the anode gas inlet port 18 of the anode gas sampling bottle 1 and inserted into the internal bottom portion of the anode gas sampling bottle 1; the anode liquid sampling bottle 5 is provided with an anode liquid inlet port 22 and an anode gas separation liquid receiving port 23 at the upper portion thereof, the pipeline of the anode chamber liquid outlet port 9 of the electrolytic cell 7 is connected to the anode liquid inlet port 22 of the anode liquid sampling bottle 5, and the anode gas separation liquid outlet pipe 16 of the anode gas sampling bottle 1 is connected to the anode gas separation liquid receiving port 23 of the anode liquid sampling bottle 5 through a pipeline.

[0035] In the present embodiment, the cathode gas sampling bottle 3 is provided with a cathode gas inlet port 20 and a cathode gas discharge port 21 at the upper portion thereof, the pipeline of the cathode chamber gas outlet port 10 of the electrolytic cell 7 is connected to the cathode gas inlet port 20 of the cathode gas sampling bottle 3 and inserted into the internal bottom portion of the cathode gas sampling bottle 3; the cathode liquid sampling bottle 6 is provided with a cathode liquid inlet port 24 and a cathode gas separation liquid receiving port 25 at the upper portion thereof, the pipeline of the cathode chamber liquid outlet port 8 of the electrolytic cell 7 is connected to the cathode liquid inlet port 24 of the cathode liquid sampling bottle 6, and the cathode gas separation liquid outlet pipe 17 of the cathode gas sampling bottle 3 is connected to the cathode gas separation liquid receiving port 25 of the cathode liquid sampling bottle 6 through a pipeline.

[0036] As a further improvement of the embodiment, the lower part of the anolyte sampling bottle 5 is respectively provided with an anolyte discharge outlet 13 and an anolyte sampling tube 12, the upper part of the anolyte sampling tube 12 enters the inside of the anolyte sampling bottle 5, and the upper end nozzle of the anolyte sampling tube 12 is located at the upper part inside the anolyte sampling bottle 5, the pipeline of the anode chamber liquid outlet 9 of the electrolytic tank 7 is connected to the anolyte inlet 22 of the anolyte sampling bottle 5 and inserted into the lower part of the anolyte sampling tube 12 inside the anolyte sampling bottle 5, and the lower end of the anolyte sampling tube 12 is connected with an anolyte sampling ball valve 26.

[0037] As a further improvement of the embodiment, the lower part of the anolyte sampling bottle 5 is respectively provided with an anolyte discharge outlet 13 and an anolyte sampling tube 12, the upper part of the anolyte sampling tube 12 enters the inside of the anolyte sampling bottle 5, and the upper end nozzle of the anolyte sampling tube 12 is located at the upper part inside the anolyte sampling bottle 5, the pipeline of the anode chamber liquid outlet 9 of the electrolytic tank 7 is connected to the anolyte inlet 22 of the anolyte sampling bottle 5 and inserted into the lower part of the anolyte sampling tube 12 inside the anolyte sampling bottle 5, and the lower end of the anolyte sampling tube 12 is connected with an anolyte sampling ball valve 26.

[0038] Preferably, the middle part of the bottle body of the anode gas sampling bottle 1 is provided with an anode gas sampling port 2, and an elastic rubber plug is sealingly connected to the anode gas sampling port 2; and an anode gas sampling syringe is also provided, which can enter the inside of the anode gas sampling bottle 1 to sample the anode gas by piercing the elastic rubber plug.

[0039] Preferably, the sealing connection between the elastic rubber plug and the anode gas sampling port 2 is a threaded fitting sealing connection.

[0040] Preferably, the middle part of the bottle body of the anode gas sampling bottle 1 is provided with an anode gas sampling port 2, and an elastic rubber plug is sealingly connected to the anode gas sampling port 2; and an anode gas sampling syringe is also provided, which can enter the inside of the anode gas sampling bottle 1 to sample the anode gas by piercing the elastic rubber plug.

[0041] Preferably, the sealing connection between the elastic rubber plug and the anode gas sampling port 2 is a threaded fitting sealing connection.

[0042] As a further improvement of the embodiment, the upper end nozzle of the anode gas separation outflow pipe 16 enters into the lower part of the anode gas sampling bottle 1, and the anode gas sampling bottle 1 is further provided with an anode gas separation outflow pipe height position adjusting device (not shown in the figure) for adjusting the height position of the upper end nozzle of the anode gas separation outflow pipe 16 entering into the anode gas sampling bottle 1; the upper end nozzle of the cathode gas separation outflow pipe 17 enters into the lower part of the cathode gas sampling bottle 3, and the cathode gas sampling bottle 3 is further provided with a cathode gas separation outflow pipe height position adjusting device (not shown in the figure) for adjusting the height position of the upper end nozzle of the cathode gas separation outflow pipe 17 entering into the cathode gas sampling bottle 3.

[0043] In the embodiment, the anode gas discharge port 19 at the upper part of the anode gas sampling bottle 1 is connected to an anode gas treatment system, and the cathode gas discharge port 21 at the upper part of the cathode gas sampling bottle 3 is connected to a cathode gas treatment system; the anode liquid discharge port 13 at the lower part of the anode liquid sampling bottle 5 is connected to an anode liquid circulation treatment system, and the cathode liquid discharge port 15 at the lower part of the cathode liquid sampling bottle 6 is connected to a cathode liquid circulation treatment system.

[0044] Hereinafter, the ion membrane electrolysis experiment device is further introduced by taking ion membrane electrolysis of sodium chloride as an example:

[0045] The electrolysis device comprises an electrolysis tank 7 and an anode gas sampling bottle 1, an anode liquid sampling bottle 5, a cathode gas sampling bottle 3 and a cathode liquid sampling bottle 6.

[0046] The saturated sodium chloride brine enters the anode chamber of the electrolytic cell 7, and the pure water or dilute sodium hydroxide enters the cathode chamber. After electrolysis, chlorine is generated in the anode chamber, and sodium hydroxide and hydrogen are generated in the cathode. The dilute brine after electrolysis enters the anode liquid sampling bottle (anode dilute brine sampling bottle) 5 through the anode chamber liquid outlet 9. The dilute brine pipeline connected with the anode chamber liquid outlet 9 is inserted into the anode liquid sampling tube 12 in the anode liquid sampling bottle (anode dilute brine sampling bottle) 5, so that the dilute brine pipeline connected with the anode chamber liquid outlet 9 is liquid sealed by the dilute brine in the anode liquid sampling tube 12. In the electrolysis process, chlorine will not overflow from the anode chamber liquid outlet 9, so as to realize gas-liquid separation. At the same time, only the dilute brine in the anode liquid sampling tube 12 is discharged through the anode liquid sampling ball valve 26 and then connected with the dilute brine, fresh dilute brine can be sampled, and the concentration of the dilute brine discharged from the anode chamber liquid outlet 9 can be analyzed, so as to ensure the normal electrolysis parameters. The chlorine enters the anode gas sampling bottle (chlorine sampling bottle) 1 through the anode chamber gas outlet 11. Since the density of chlorine is greater than that of air, the pipeline connected with the anode chamber gas outlet 11 must be inserted into the bottom of the anode gas sampling bottle (chlorine sampling bottle) 1 to discharge the air in the bottle to the outside of the bottle, so that the bottle is always filled with fresh chlorine. When analyzing chlorine, only a certain amount of chlorine is needed to be obtained through the syringe at the anode gas sampling port (chlorine sampling port) 2. The water in the chlorine gas is condensed in the bottle and enters the anode liquid sampling bottle (anode dilute brine sampling bottle) 5 along the pipeline at the bottom of the bottle. A small amount of chlorine in the anode dilute brine also enters the anode gas sampling bottle (chlorine sampling bottle) 1 through the pipeline. Under the stable state of electrolysis, the alkali liquid is collected through the cathode liquid sampling ball valve from the cathode liquid sampling tube 14 for a certain period of time, and the current efficiency can be obtained after analysis. The cathode side of the electrolytic cell is provided and the anode side is the same. After adjusting the height of the anode gas separation liquid outlet pipe 16 at the bottom of the anode gas sampling bottle (chlorine sampling bottle) 1 and the cathode gas separation liquid outlet pipe 17 at the bottom of the cathode gas sampling bottle (hydrogen sampling bottle) 3 inserted into the bottle, a certain amount of water can be added in the chlorine sampling bottle 1 and the hydrogen sampling bottle 3, so as to adjust the pressure in the anode chamber and the cathode chamber, change the pressure difference between the anode chamber and the cathode chamber, explore the influence of different pressure differences between the anode chamber and the cathode chamber on electrolysis, and directly observe the running state of electrolysis since there is liquid in the anode gas sampling bottle (chlorine sampling bottle) 1 and the cathode gas sampling bottle (hydrogen sampling bottle) 3, and gas always overflows through the water seal during electrolysis.

[0047] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and decorations can be made without departing from the technical principles of the present application, and these improvements and decorations should also be regarded as the protection scope of the present application.

Claims

1. A membrane electrolysis experimental device suitable for sampling and analysis, characterized in that: The invention comprises an electrolytic cell, an anode chamber gas outlet and an anode chamber liquid outlet respectively arranged on the anode chamber of the electrolytic cell, and a cathode chamber gas outlet and a cathode chamber liquid outlet respectively arranged on the cathode chamber of the electrolytic cell, wherein the anode chamber gas outlet of the electrolytic cell is connected to an anode gas sampling bottle via a pipeline, the anode chamber liquid outlet of the electrolytic cell is connected to an anode liquid sampling bottle via a pipeline, the cathode chamber gas outlet of the electrolytic cell is connected to a cathode gas sampling bottle via a pipeline, and the cathode chamber liquid outlet of the electrolytic cell is connected to a cathode liquid sampling bottle via a pipeline; wherein an anode gas separation liquid outlet pipe is provided at the bottom of the anode gas sampling bottle, and the anode gas separation liquid outlet pipe on the anode gas sampling bottle is connected to the anode liquid sampling bottle via a pipeline; and a cathode gas separation liquid outlet pipe is provided at the bottom of the cathode gas sampling bottle, and the cathode gas separation liquid outlet pipe on the cathode gas sampling bottle is connected to the cathode liquid sampling bottle via a pipeline.

2. A membrane electrolysis experimental device suitable for sampling and analysis according to claim 1, characterized in that: The body of the anode gas sampling bottle and the body of the cathode gas sampling bottle are respectively covered with heat dissipation sleeves for accelerating the condensation of the internal gas, or condensation devices are added to the anode and cathode gas discharge ports.

3. A membrane electrolysis experimental device suitable for sampling and analysis according to claim 1, characterized in that: The upper part of the anode gas sampling bottle is respectively provided with an anode gas inlet and an anode gas discharge port, the pipeline of the anode chamber gas outlet of the electrolytic cell is connected to the anode gas inlet of the anode gas sampling bottle and inserted into the inner bottom position of the anode gas sampling bottle; the upper part of the anode liquid sampling bottle is respectively provided with an anode liquid inlet and an anode gas separation liquid receiving port, the pipeline of the anode chamber liquid outlet of the electrolytic cell is connected to the anode liquid inlet at the upper part of the anode liquid sampling bottle, and the anode gas separation liquid outlet pipe at the lower part of the anode gas sampling bottle is connected to the anode gas separation liquid receiving port at the upper part of the anode liquid sampling bottle through a pipeline.

4. A membrane electrolysis experimental device suitable for sampling and analysis according to claim 3, characterized in that: The upper part of the cathode gas sampling bottle is respectively provided with a cathode gas inlet and a cathode gas discharge port, and the pipeline of the cathode chamber gas outlet of the electrolyzer is connected to the cathode gas inlet of the cathode gas sampling bottle and inserted into the inner bottom position of the cathode gas sampling bottle; the upper part of the cathode liquid sampling bottle is respectively provided with a cathode liquid inlet and a cathode gas separation liquid receiving port, and the pipeline of the cathode chamber liquid outlet of the electrolyzer is connected to the cathode liquid inlet at the upper part of the cathode liquid sampling bottle, and the cathode gas separation liquid outlet pipe at the lower part of the cathode gas sampling bottle is connected to the cathode gas separation liquid receiving port at the upper part of the cathode liquid sampling bottle through a pipeline.

5. The membrane electrolysis experimental device suitable for sampling and analysis according to claim 3, characterized in that: The lower part of the anolyte sampling bottle is respectively provided with an anolyte discharge port and an anolyte sampling tube, the upper part of the anolyte sampling tube enters the interior of the anolyte sampling bottle, and the upper end of the anolyte sampling tube is located at the upper position inside the anolyte sampling bottle, the pipeline of the anode chamber liquid outlet of the electrolytic cell is connected to the anolyte inlet of the anolyte sampling bottle and inserted into the lower position of the anolyte sampling tube inside the anolyte sampling bottle, and the lower end of the anolyte sampling tube is connected to the anolyte sampling ball valve.

6. A membrane electrolysis experimental device suitable for sampling and analysis according to claim 4, characterized in that: The lower part of the cathode liquid sampling bottle is respectively provided with a cathode liquid outlet and a cathode liquid sampling tube, the upper part of the cathode liquid sampling tube enters the interior of the cathode liquid sampling bottle, and the upper end of the cathode liquid sampling tube is located at the upper position inside the cathode liquid sampling bottle, the pipeline of the cathode chamber liquid outlet of the electrolytic cell is connected to the cathode liquid inlet of the cathode liquid sampling bottle and inserted into the lower position of the cathode liquid sampling tube inside the cathode liquid sampling bottle, and the lower end of the cathode liquid sampling tube is connected to the cathode liquid sampling ball valve.

7. A membrane electrolysis experimental device suitable for sampling and analysis according to claim 1, characterized in that: An anode gas sampling port is provided in the middle of the bottle body of the anode gas sampling bottle, and an elastic rubber plug is sealed on the anode gas sampling port; an anode gas sampling syringe is also provided which can enter the interior of the anode gas sampling bottle to sample the anode gas by puncturing the elastic rubber plug.

8. The membrane electrolysis experimental device suitable for sampling and analysis according to claim 1, characterized in that: A cathode gas sampling port is provided in the middle of the body of the cathode gas sampling bottle, and an elastic rubber plug is sealed on the cathode gas sampling port; a cathode gas sampling syringe is also provided which can enter the interior of the cathode gas sampling bottle to sample the cathode gas by puncturing the elastic rubber plug.

9. The membrane electrolysis experimental device suitable for sampling and analysis according to claim 1, characterized in that: The upper end of the anode gas separation liquid outlet pipe enters the lower position of the anode gas sampling bottle, and the anode gas sampling bottle is also provided with an anode gas separation liquid outlet pipe height position adjustment device for adjusting the height position of the upper end of the anode gas separation liquid outlet pipe entering the anode gas sampling bottle; the upper end of the cathode gas separation liquid outlet pipe enters the lower position of the cathode gas sampling bottle, and the cathode gas sampling bottle is also provided with a cathode gas separation liquid outlet pipe height position adjustment device for adjusting the height position of the upper end of the cathode gas separation liquid outlet pipe entering the cathode gas sampling bottle.

10. The membrane electrolysis experimental device suitable for sampling and analysis according to claim 4, characterized in that: The anode gas exhaust port at the top of the anode gas sampling bottle is connected to the anode gas treatment system, and the cathode gas exhaust port at the top of the cathode gas sampling bottle is connected to the cathode gas treatment system; the anode liquid exhaust port at the bottom of the anode liquid sampling bottle is connected to the anode liquid circulation treatment system, and the cathode liquid exhaust port at the bottom of the cathode liquid sampling bottle is connected to the cathode liquid circulation treatment system.

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