Alkali liquor input pipeline and water electrolysis system
The flexible alkali liquid input system addresses flow and temperature instability in electrolysis systems by adjusting flow rates and temperatures, improving efficiency and extending cell lifespan.
Patent Information
- Application Number
- CN202422071901.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the existing alkaline electrolytic water system, the alkali input method leads to the low working efficiency and shortened life of the electrolytic cell, which is mainly caused by fixed flow and unstable temperature.
A lye input pipeline system is designed, including flow regulation and temperature control device, which flexibly adjusts the flow rate of the lye through the second pipeline, and uses a heater to keep the lye at a suitable temperature, combining components such as flowmeters, thermometers and circulation pumps to achieve stable input of the lye.
It improves the working efficiency and service life of the electrolytic cell, ensures the system to operate smoothly when the load changes, and avoids damage to the electrolytic cell by high temperature.
Smart Images
Figure CN223103103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hydrogen production, in particular to an alkali solution input pipeline and an electrolyzed water system. Background Art
[0002] In the existing alkaline electrolyzed water hydrogen production system, the cooled alkali solution is generally directly pumped into the electrolytic cell by a circulating pump. However, the pump flow rate of this alkali solution input method is fixed, which may cause the alkali solution flow rate input into the electrolytic cell of the electrolyzed water system operating at low load to be too high, affecting the working efficiency of the electrolytic cell and causing damage to the electrolytic cell. At the same time, the temperature of the alkali solution entering the electrolytic cell is also unstable. Too low temperature will reduce the electrolysis efficiency, and too high temperature will shorten the service life of the electrolytic cell. Therefore, there is an urgent need for a new alkali solution input pipeline and an electrolyzed water system to solve the above problems. Summary of the Utility Model
[0003] The purpose of this application is to provide an alkali solution input pipeline and an electrolyzed water system, which effectively improve the working efficiency of the electrolytic cell.
[0004] The purpose of this application is achieved through the following technical solutions:
[0005] An alkali solution input pipeline includes: an alkali solution tank, a first pipeline, a second pipeline, and an electrolytic cell. One end of the first pipeline is connected to the alkali solution tank, and the other end of the first pipeline is connected to the electrolytic cell. One end of the second pipeline is connected to the alkali solution tank, and the other end of the second pipeline is connected to the first pipeline. Among them, the first pipeline is used to input the alkali solution in the alkali solution tank into the electrolytic cell, and the second pipeline is used to input the alkali solution in the first pipeline into the alkali solution tank.
[0006] In some embodiments of this application, a third pipeline and a heater are further included. Both ends of the third pipeline are connected to the first pipeline, and the heater is installed on the third pipeline.
[0007] In some embodiments of this application, a thermometer is further included, and the thermometer is installed at one end of the first pipeline close to the electrolytic cell.
[0008] In some embodiments of this application, a flowmeter is further included, and the flowmeter is installed at one end of the first pipeline close to the electrolytic cell.
[0009] In some embodiments of this application, a circulating pump is further included. The circulating pump is installed on the first pipeline, before the intersection of the first pipeline and the second pipeline, and before the intersection of the first pipeline and the third pipeline.
[0010] In some embodiments of the present application, a filter is further included. The filter is installed in the first pipeline, and the filter is located before the circulation pump.
[0011] In some embodiments of the present application, a flow-limiting orifice plate is further included. The flow-limiting orifice plate is installed in the second pipeline, and the flow-limiting orifice plate is used to limit the flow rate of the lye flowing back into the lye tank in the second pipeline.
[0012] In some embodiments of the present application, on-off valves are provided in both the first pipeline and the second pipeline.
[0013] In some embodiments of the present application, on-off valves are provided in both the first pipeline and the third pipeline. The on-off valve of the first pipeline is arranged in parallel with the heater, and the on-off valve of the third pipeline is arranged before and after the heater.
[0014] An electrolyzed water system includes: the lye input pipeline as described above, and a circuit component, and the circuit component is electrically connected to the electrolytic cell.
[0015] In the lye input pipeline and the electrolyzed water system of the present application, the lye tank is used to store lye. The first pipeline can transport the lye in the lye tank to the electrolytic cell for electrolysis-related work. The second pipeline can flexibly adjust the flow rate of the lye input into the electrolytic cell according to the load condition of the system, ensuring the stable operation of the electrolyzed water system and effectively improving the system's tolerance to load changes. At the same time, the heater can keep the lye at the most suitable stable temperature, effectively improving the working efficiency of the electrolytic cell and effectively extending the service life of the electrolytic cell, and avoiding damage to the electrolytic cell and the system caused by high temperature. Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of the lye input pipeline of the present application.
[0017] In the figure, 1. lye tank; 2. first pipeline; 3. second pipeline; 4. electrolytic cell; 5. third pipeline; 6. heater; 7. thermometer; 8. flowmeter; 9. circulation pump; 10. filter; 11. flow-limiting orifice plate; 12. on-off valve. Detailed Description of the Embodiments
[0018] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.
[0019] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. used in this application to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0020] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0021] As Figure 1 shown, a first aspect of the embodiments of this application provides an alkali solution input pipeline, including: an alkali solution tank 1, a first pipeline 2, a second pipeline 3, and an electrolytic cell 4. One end of the first pipeline 2 is connected to the alkali solution tank 1, and the other end of the first pipeline 2 is connected to the electrolytic cell 4. One end of the second pipeline 3 is connected to the alkali solution tank 1, and the other end of the second pipeline 3 is connected to the first pipeline 2. Among them, the first pipeline 2 is used to input the alkali solution in the alkali solution tank 1 into the electrolytic cell 4, and the second pipeline 3 is used to input the alkali solution in the first pipeline 2 into the alkali solution tank 1.
[0022] Based on the above technical solution, for the alkali solution input pipeline of this application, the alkali solution tank 1 is used to store the alkali solution. The first pipeline 2 can transport the alkali solution in the alkali solution tank 1 to the electrolytic cell 4 for electrolysis-related work, while the second pipeline 3 can flexibly adjust the flow rate of the alkali solution input into the electrolytic cell 4 according to the load situation of the system, ensuring the stable operation of the electrolyzed water system and effectively improving the system's tolerance to load changes.
[0023] In some embodiments of this application, as Figure 1 shown, it further includes a third pipeline 5 and a heater 6. Both ends of the third pipeline 5 are connected to the first pipeline 2, and the heater 6 is installed on the third pipeline 5. The third pipeline 5 can introduce the flowing alkali solution in the first pipeline 2, and through the heater 6, the alkali solution can be maintained at the most suitable stable temperature, effectively improving the working efficiency of the electrolytic cell 4 and effectively extending the service life of the electrolytic cell 4, avoiding damage to the electrolytic cell 4 and the system caused by high temperature.
[0024] In some embodiments of the present application, as Figure 1 shown, it further includes a thermometer 7, and the thermometer 7 is installed at one end of the first pipe 2 close to the electrolytic cell 4. The thermometer 7 can monitor the temperature of the alkali solution input into the electrolytic cell 4, so as to control the temperature of the alkali solution flowing in the pipe; preferably, the temperature monitored by the thermometer 7 is fed back to the heater 6 of the third pipe 5, so as to control the heater 6 to perform a heating operation, and the thermometer 7 is arranged close to the electrolytic cell 4, and the detection data is more accurate.
[0025] In some embodiments of the present application, as Figure 1 shown, it further includes a flowmeter 8, and the flowmeter 8 is installed at one end of the first pipe 2 close to the electrolytic cell 4. The flowmeter 8 can monitor the flow rate of the alkali solution input into the electrolytic cell 4, so as to control the flow rate of the alkali solution flowing in the pipe. The flow rate display of the flowmeter 8 is fed back to the second pipe 3 to control the second pipe 3 to change the flow rate of the first pipe 2 and adjust the flow rate of the alkali solution input into the electrolytic cell 4 to ensure the stable progress of the electrolysis process of the electrolytic cell 4.
[0026] In some embodiments of the present application, as Figure 1 shown, it further includes a circulation pump 9, and the circulation pump 9 is installed on the first pipe 2. The circulation pump 9 is located before the intersection of the first pipe 2 and the second pipe 3, and the circulation pump 9 is located before the intersection of the first pipe 2 and the third pipe 5. The circulation pump 9 can simply, conveniently and effectively pump the alkali solution out of the alkali solution tank 1 and input it into the electrolytic cell 4 along the first pipe 2. When the circulation pump 9 is arranged at the position where the alkali solution tank 1 just discharges liquid, it can directly pump the liquid out and then enter the first pipe 2, the second pipe 3 or the third pipe 5, and the liquid flow effect is better.
[0027] In some embodiments of the present application, as Figure 1 shown, it further includes a filter 10, and the filter 10 is installed on the first pipe 2, and the filter 10 is located before the circulation pump 9. The filter 10 can ensure that the alkali solution entering the circulation pump 9 is filtered first, so as to avoid impurities entering the circulation pump 9, improve the service life of the circulation pump 9, and at the same time can also avoid impurities entering the electrolytic cell 4 and affecting the electrolysis of water.
[0028] In some embodiments of the present application, as Figure 1 shown, it further includes a flow limiting orifice plate 11, and the flow limiting orifice plate 11 is installed on the second pipe 3. The flow limiting orifice plate 11 is used to limit the flow rate of the alkali solution flowing back from the second pipe 3 to the alkali solution tank 1. The flow limiting orifice plate 11 can adjust the flow rate of the second pipeline, so as to simply and conveniently adjust the flow rate of the alkali solution input into the electrolytic cell 4.
[0029] In some embodiments of the present application, asFigure 1 As shown, a shut-off valve 12 is provided in each of the first pipe 2 and the second pipe 3. The shut-off valve 12 can control the opening and closing of the first pipe 2 and the second pipe 3, thereby controlling the entry of the lye into the electrolytic cell 4 or controlling the reflux of the lye back to the lye tank 1, achieving the purpose of controlling the lye flow rate.
[0030] Specifically, as Figure 1 shown, a shut-off valve 12 is provided in each of the first pipe 2 and the third pipe 5, and the shut-off valve 12 of the first pipe 2 is arranged in parallel with the heater 6, and the shut-off valve 12 of the third pipe 5 is arranged before and after the heater 6. During use, when the shut-off valve 12 of the first pipe 2 is closed, the lye can only flow from the third pipe 5 to the electrolytic cell 4, and at this time, it can be heated by the heater 6 to rapidly increase the temperature of the lye and then sent into the electrolytic cell 4. When the shut-off valve 12 of the first pipe 2 is opened, the shut-off valves 12 at both ends of the heater 6 on the third pipe 5 can be respectively controlled. When the shut-off valve 12 in front of the heater 6 is opened, the lye in the first pipe 2 will be diverted to the heater 6, and the heater 6 heats this part of the lye and stores the heated lye. When it is necessary to rapidly increase the temperature of the lye entering the electrolytic cell 4, then the shut-off valve 12 behind the heater 6 is opened, thereby realizing the rapid adjustment of the temperature of the lye entering the electrolytic cell 4.
[0031] A second aspect of the embodiments of the present application provides an electrolyzed water system, including: the lye input pipe as described above, and a circuit component, the circuit component being electrically connected to the electrolytic cell 4. Since the electrolyzed water system includes all the structures of the lye input pipe, it has all the beneficial effects of the above lye input pipe, and thus has all the beneficial effects of the above battery bottom guard plate, which will not be elaborated here. And the circuit component can energize the electrolytic cell 4, thereby realizing the electrolyzed water process.
[0032] In summary, for the lye input pipe and the electrolyzed water system of the present application, the lye tank 1 is used to store lye, the first pipe 2 can transport the lye in the lye tank 1 to the electrolytic cell 4 for electrolysis-related work, and the second pipe 3 can flexibly adjust the lye flow rate input into the electrolytic cell 4 according to the load condition of the system, ensuring the stable operation of the electrolyzed water system and effectively improving the system's tolerance to load changes. At the same time, the lye can be maintained at the most suitable stable temperature through the heater 6, effectively improving the working efficiency of the electrolytic cell 4 and effectively extending the service life of the electrolytic cell 4, avoiding damage to the electrolytic cell 4 and the system caused by high temperature.
[0033] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present application.
Claims
1. An alkali solution input pipeline, characterized in that, Comprising: An alkali solution tank, a first pipeline, a second pipeline, and an electrolytic cell. One end of the first pipeline is connected to the alkali solution tank, and the other end of the first pipeline is connected to the electrolytic cell. One end of the second pipeline is connected to the alkali solution tank, and the other end of the second pipeline is connected to the first pipeline. Wherein, the first pipeline is used to input the alkali solution in the alkali solution tank into the electrolytic cell, and the second pipeline is used to input the alkali solution in the first pipeline into the alkali solution tank.
2. The lye input pipeline according to claim 1, wherein Further comprising a third pipeline and a heater. Both ends of the third pipeline are connected to the first pipeline, and the heater is installed on the third pipeline.
3. The lye input pipeline according to claim 1, wherein, Further comprising a thermometer, and the thermometer is installed at one end of the first pipeline close to the electrolytic cell.
4. The lye input pipeline according to claim 1, characterized in that, Further comprising a flowmeter, and the flowmeter is installed at one end of the first pipeline close to the electrolytic cell.
5. The lye input pipeline according to claim 2, characterized in that, Further comprising a circulation pump, and the circulation pump is installed on the first pipeline. The circulation pump is located before the confluence of the first pipeline and the second pipeline, and the circulation pump is located before the confluence of the first pipeline and the third pipeline.
6. The lye input pipeline according to claim 5, characterized in that, Further comprising a filter, and the filter is installed on the first pipeline, and the filter is located before the circulation pump.
7. The lye input pipeline according to claim 1, characterized in that Further comprising a choke orifice plate, and the choke orifice plate is installed on the second pipeline. The choke orifice plate is used to limit the flow rate of the alkali solution flowing back into the alkali solution tank through the second pipeline.
8. The lye input pipeline according to claim 1, wherein Both the first pipeline and the second pipeline are provided with on-off valves.
9. The lye input pipeline according to claim 2, characterized in that Both the first pipeline and the third pipeline are provided with on-off valves. The on-off valve of the first pipeline is arranged in parallel with the heater, and the on-off valve of the third pipeline is arranged before and after the heater.
10. An electrolyzed water system, characterized in that, Comprising: The alkali solution input pipeline according to any one of claims 1-9, and a circuit component, and the circuit component is electrically connected to the electrolytic cell.