Device for balancing acid-base water flow of diaphragm electrolytic cell
By designing a balanced diaphragm electrolytic cell acid and alkali water flow device in a diaphragm electrolytic cell, the problem of uneven water flow rate in the outlet of the electrolytic cell is solved, and the balanced water supply to the electrolytic cell is achieved, and the electrolytic quality and the service life of the diaphragm are improved.
Patent Information
- Application Number
- CN202420950642.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-30
AI Technical Summary
When the diaphragm electrolytic cell is supplied with water, the water flow rate between the anode chamber and the cathode chamber is unbalanced, resulting in damage to the balanced diaphragm and reduced electrolytic quality.
Design a device for balancing the acid and alkali water flow of the diaphragm electrolytic cell. By setting the first water outlet of the electrolytic cell and the second water outlet of the electrolytic cell to the same horizontal height, the buffer chamber and exhaust pipe are used to balance the two. Water flow rate.
It effectively balances the water outlet flow between the cathode chamber and the anode chamber, reducing the problems of diaphragm damage and electrolytic quality reduction caused by uneven water flow.
Smart Images
Figure CN222434649U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical electrolysis, in particular to a device for balancing the flow rate of acid and alkali water in a diaphragm electrolytic cell. Background Art
[0002] Due to its working principle, the diaphragm electrolyzer is internally divided into an anode chamber and a cathode chamber. When the electrolyzer is supplied with water, water is supplied to both the anode chamber and the cathode chamber at the same time. However, most of the time, the water flow at the water outlet of the anode chamber and the cathode chamber of the electrolyzer is not equal. It may even happen that the water flow at the water outlet of the anode chamber or the cathode chamber is much greater than the water flow at the water outlet of the other electrolyzer. This will not only cause certain damage to the balancing diaphragm during the electrolysis process, but also reduce the amount of electrolyte in the electrolysis product. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a device for balancing the flow of acid and alkali water in a diaphragm electrolyzer, which can balance the water flow of the water outlets of the cathode chamber and the anode chamber in the electrolyzer, thereby reducing many problems caused by uneven water flow of the water outlets of the two electrolyzers.
[0004] According to the embodiment of the utility model, the device for balancing the acid-base water flow of a diaphragm electrolytic cell includes an electrolytic cell, a water inlet pipe, a first water outlet pipe, and a second water outlet pipe, wherein the electrolytic cell includes a first reaction chamber and a second reaction chamber that are independent of each other; the water inlet pipe is connected to the electrolytic cell, and the water inlet pipe is used to provide electrolyzed water to the first reaction chamber and the second reaction chamber; one end of the first water outlet pipe is connected to the first reaction chamber of the electrolytic cell; one end of the second water outlet pipe is connected to the second reaction chamber of the electrolytic cell, and the other end of the second water outlet pipe has a consistent horizontal height with the other end of the first water outlet pipe.
[0005] According to some embodiments of the utility model, the device also includes a first buffer chamber, a second buffer chamber, a third water outlet pipe, and a fourth water outlet pipe. The first buffer chamber is connected to the other end of the first water outlet pipe, the second buffer chamber is connected to the other end of the second water outlet pipe, the third water outlet pipe is connected to the bottom of the first buffer chamber, and the fourth water outlet pipe is connected to the bottom of the second buffer chamber.
[0006] According to some embodiments of the present invention, the internal space volume of the first buffer chamber is larger than the internal space volume of the first water outlet pipe, and the internal space volume of the second buffer chamber is larger than the internal space volume of the second water outlet pipe.
[0007] According to some embodiments of the embodiments of the present invention, the cross-sectional area of the bottom of the first buffer chamber gradually decreases from top to bottom, and the cross-sectional area of the bottom of the second buffer chamber gradually decreases from top to bottom.
[0008] According to some embodiments of the embodiments of the present utility model, the first buffer chamber is detachably connected to the first water outlet pipe, and the second buffer chamber is detachably connected to the second water outlet pipe.
[0009] According to some embodiments of the present invention, a first sealing ring is provided at a position where the first buffer chamber and the first water outlet pipe are detachably connected, and a second sealing ring is provided at a position where the second buffer chamber and the second water outlet pipe are detachably connected.
[0010] According to some embodiments of the present invention, the materials of the first sealing ring and the second sealing ring both include corrosion-resistant rubber.
[0011] According to some embodiments of the embodiments of the present utility model, a first exhaust port is further provided on the first buffer chamber, and a second exhaust port is further provided on the second buffer chamber.
[0012] According to some embodiments of the present invention, a first exhaust pipe communicating with the first exhaust port is disposed on the first exhaust port, and a second exhaust pipe communicating with the second exhaust port is disposed on the second exhaust port.
[0013] According to some embodiments of the present invention, a first filter device is further provided in the first exhaust pipe, and a second filter device is further provided in the second exhaust pipe. Both the first filter device and the second filter device are used to absorb harmful gases.
[0014] The utility model provides a device for balancing the flow of acid and alkali water in a diaphragm electrolytic cell, which has at least the following beneficial effects: it can balance the water flow of the water outlets of the cathode chamber and the anode chamber in the electrolytic cell, thereby reducing many problems caused by uneven water flow of the water outlets of the two electrolytic chambers.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0017] Figure 1 It is a schematic structural diagram of a device for balancing the flow rate of acid and alkaline water in a diaphragm electrolyzer according to an embodiment of the utility model.
[0018] Figure numerals: water inlet pipe 1, electrolytic cell 2, first water outlet pipe 3, second water outlet pipe 4, first buffer chamber 5, second buffer chamber 6, first exhaust port 7, second exhaust port 8, first exhaust pipe 9, second exhaust pipe 10, third water outlet pipe 11, fourth water outlet pipe 12. DETAILED DESCRIPTION
[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0021] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of the first, second, third, and fourth, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0022] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably confirm the specific meaning of the above terms in the present utility model in combination with the specific content of the technical solution.
[0023] refer to Figure 1 According to the embodiment of the utility model, the device for balancing the acid-base water flow of the diaphragm electrolytic cell includes an electrolytic cell 2, a water inlet pipe 1, a first water outlet pipe 3, and a second water outlet pipe 4. The electrolytic cell 2 includes a first reaction chamber and a second reaction chamber that are independent of each other; the water inlet pipe 1 is connected to the electrolytic cell 2, and the water inlet pipe 1 is used to provide electrolyzed water to the first reaction chamber and the second reaction chamber; one end of the first water outlet pipe 3 is connected to the first reaction chamber of the electrolytic cell 2; one end of the second water outlet pipe 4 is connected to the second reaction chamber of the electrolytic cell 2, and the other end of the second water outlet pipe 4 has a consistent horizontal height with the other end of the first water outlet pipe 3.
[0024] Specifically, the first reaction chamber can be any one of the cathode chamber or the anode chamber, and the second reaction chamber can be the other one of the cathode chamber or the anode chamber, wherein a diaphragm is used between the cathode chamber and the anode chamber to separate the two reaction chambers. The electrolyzed water input into the electrolytic cell 2 through the water inlet pipe 1 has a preset hydraulic pressure or flow rate, and the acidic or alkaline liquid generated by electrolysis in the first reaction chamber can be discharged from the electrolytic cell 2 through the first water outlet pipe 3, and the alkaline or acidic liquid generated by electrolysis in the second reaction chamber can be discharged from the electrolytic cell 2 through the second water outlet pipe 4. The horizontal heights of the water outlets of the first water outlet pipe 3 and the second water outlet pipe 4 are kept consistent, which can reduce the generation of the siphon effect at the water outlets of the first water outlet pipe 3 and the second water outlet pipe 4, and balance the liquid flow at the water outlets of the first water outlet pipe 3 and the second water outlet pipe 4.
[0025] refer to Figure 1 According to some embodiments of the utility model, the device further includes a first buffer chamber 5, a second buffer chamber 6, a third water outlet pipe 11, and a fourth water outlet pipe 12. The first buffer chamber 5 is connected to the other end of the first water outlet pipe 3, the second buffer chamber 6 is connected to the other end of the second water outlet pipe 4, the third water outlet pipe 11 is connected to the bottom of the first buffer chamber 5, and the fourth water outlet pipe 12 is connected to the bottom of the second buffer chamber 6. The hydraulic pressure of the acidic or alkaline liquid discharged from the first water outlet pipe 3 is reduced by the first buffer chamber 5 and the third water outlet pipe 11, so as to facilitate the collection and post-treatment of the acidic or alkaline liquid; the second buffer chamber 6 and the fourth water outlet pipe 12 reduce the hydraulic pressure of the acidic or alkaline liquid discharged from the first water outlet pipe 4, so as to facilitate the collection and post-treatment of the acidic or alkaline liquid.
[0026] refer to Figure 1 According to some embodiments of the present invention, the internal space volume of the first buffer chamber 5 is larger than the internal space volume of the first water outlet pipe 3, and the internal space volume of the second buffer chamber 6 is larger than the internal space volume of the second water outlet pipe 4. The internal volume of the buffer chamber is larger than the internal volume of the first water outlet pipe 3 and / or the second water outlet pipe 4, which can better relieve the hydraulic pressure of the acidic or alkaline liquid discharged from the first water outlet pipe 3 and the second water outlet pipe 4.
[0027] According to some embodiments of the present invention, the cross-sectional area of the bottom of the first buffer chamber 5 gradually decreases from top to bottom, and the cross-sectional area of the bottom of the second buffer chamber 6 gradually decreases from top to bottom. When the acidic or alkaline liquid in the first buffer chamber 5 and the second buffer chamber 6 is collected, the acidic or alkaline liquid can completely leave the first buffer chamber 5 and the second buffer chamber 6 under the action of gravity, and will not remain in the first buffer chamber 5 and the second buffer chamber 6.
[0028] According to some embodiments of the present invention, the first buffer chamber 5 is detachably connected to the first water outlet pipe 3, and the second buffer chamber 6 is detachably connected to the second water outlet pipe 4. The first buffer chamber 5 with a suitable internal space volume can be replaced based on the flow rate of the acidic or alkaline liquid, or when the buffer chamber has a dangerous situation such as leakage or leakage risk, the buffer chamber can be replaced.
[0029] According to some embodiments of the utility model, a first sealing ring (not shown) is provided at the position where the first buffer chamber 5 is detachably connected to the first water outlet pipe 3, and a second sealing ring (not shown) is provided at the position where the second buffer chamber 6 is detachably connected to the second water outlet pipe 4. The first sealing ring is used to prevent liquid leakage at the connection between the first buffer chamber 5 and the first water outlet pipe 3, and the second sealing ring is used to prevent liquid leakage at the connection between the second buffer chamber 6 and the second water outlet pipe 4.
[0030] According to some embodiments of the present invention, the materials of the first sealing ring and the second sealing ring include but are not limited to corrosion-resistant rubber. It is conceivable that the materials of the first sealing ring and the second sealing ring have at least acid and alkali corrosion resistance.
[0031] refer to Figure 1 According to some embodiments of the utility model, the first buffer chamber 5 is further provided with a first exhaust port 7, and the second buffer chamber 6 is further provided with a second exhaust port 8. When the acidic or alkaline liquid enters the internal space of the first buffer chamber 5 or the second buffer chamber 6, the gas carried by the acidic or alkaline liquid entering the first buffer chamber 5 can be discharged through the first exhaust port 7; the gas carried by the acidic or alkaline liquid entering the second buffer chamber 6 can be discharged through the second exhaust port 8.
[0032] refer to Figure 1 According to some embodiments of the present utility model, the first exhaust port 7 is provided with a first exhaust pipe 9 connected to the first exhaust port 7, and the second exhaust port 8 is provided with a second exhaust pipe 10 connected to the second exhaust port 8. The first exhaust pipe 9 can prevent the acidic or alkaline liquid in the first buffer chamber 5 from leaking to the outside through the first exhaust port 7, and the second exhaust pipe 10 can prevent the acidic or alkaline liquid in the second buffer chamber 6 from leaking to the outside through the second exhaust port 8.
[0033] It can be imagined that in order to better collect the acidic or alkaline liquid carried on the gas surface, the cross-sectional area of the first exhaust pipe 7 and the second exhaust pipe 8 gradually decreases from bottom to top to increase the contact time and contact probability between the gas and the side inner wall of the first exhaust pipe 7 or the side inner wall of the second exhaust pipe 8.
[0034] According to some embodiments of the present invention, a first filter device (not shown) is further provided in the first exhaust pipe 9, and a second filter device (not shown) is further provided in the second exhaust pipe 10. Both the first filter device and the second filter device are used to absorb harmful gases.
[0035] Specifically, the first filter device and the second filter device both include gas filter materials such as activated carbon, which absorb harmful gases by physical adsorption to prevent the harmful gases from diffusing into the air. It is conceivable that the first filter device and the second filter device may also include gas chemical adsorption materials that react chemically with harmful gases.
[0036] The utility model provides a device for balancing the flow rate of acid and alkaline water in a diaphragm electrolyzer, which has at least the following beneficial effects: by setting the water outlets of the first water outlet pipe 3 and the second water outlet pipe 4 at the same horizontal height, the siphon effect is prevented, so that the hydraulic pressure and liquid flow at the water outlets of the first water outlet pipe 3 and the second water outlet pipe 4 are kept the same; the acidic or alkaline liquid discharged from the first water outlet pipe 3 is collected and the harmful gas is treated through the first buffer chamber 5, the first exhaust port 7, the first exhaust pipe 9, the third water outlet pipe 11, and the first filtering device; the acidic or alkaline liquid discharged from the second water outlet pipe 4 is collected and the harmful gas is treated through the second buffer chamber 6, the second exhaust port 8, the second exhaust pipe 10, the fourth water outlet pipe 12, and the second filtering device.
[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer, characterized in that: include: An electrolytic cell, comprising a first reaction chamber and a second reaction chamber which are independent of each other; a water inlet pipe, connected to the electrolytic cell, and used to provide electrolyzed water to the first reaction chamber and the second reaction chamber; a first water outlet pipe, one end of which is connected to the first reaction chamber of the electrolytic cell; A second water outlet pipe has one end connected to the second reaction chamber of the electrolytic cell, and the other end of the second water outlet pipe has the same horizontal height as the other end of the first water outlet pipe.
2. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 1, characterized in that: The device also includes a first buffer chamber, a second buffer chamber, a third water outlet pipe, and a fourth water outlet pipe. The first buffer chamber is connected to the other end of the first water outlet pipe, the second buffer chamber is connected to the other end of the second water outlet pipe, the third water outlet pipe is connected to the bottom of the first buffer chamber, and the fourth water outlet pipe is connected to the bottom of the second buffer chamber.
3. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 2, characterized in that: The internal space volume of the first buffer chamber is larger than the internal space volume of the first water outlet pipe, and the internal space volume of the second buffer chamber is larger than the internal space volume of the second water outlet pipe.
4. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 2, characterized in that: The cross-sectional area of the bottom of the first buffer chamber gradually decreases from top to bottom, and the cross-sectional area of the bottom of the second buffer chamber gradually decreases from top to bottom.
5. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 2, characterized in that: The first buffer chamber is detachably connected to the first water outlet pipe, and the second buffer chamber is detachably connected to the second water outlet pipe.
6. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 5, characterized in that: A first sealing ring is provided at a position where the first buffer chamber is detachably connected to the first water outlet pipe, and a second sealing ring is provided at a position where the second buffer chamber is detachably connected to the second water outlet pipe.
7. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 6, characterized in that: The materials of the first sealing ring and the second sealing ring both include corrosion-resistant rubber.
8. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 2, characterized in that: The first buffer chamber is provided with a first exhaust port, and the second buffer chamber is provided with a second exhaust port.
9. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 8, characterized in that: The first exhaust port is provided with a first exhaust pipe communicating with the first exhaust port, and the second exhaust port is provided with a second exhaust pipe communicating with the second exhaust port.
10. The device for balancing the flow rate of acid and alkali water in a diaphragm electrolyzer according to claim 9, characterized in that: A first filter device is also provided in the first exhaust pipe, and a second filter device is also provided in the second exhaust pipe. Both the first filter device and the second filter device are used to absorb harmful gases.