Electrolytic bath liquid outlet pipeline joint

Abstract

The utility model discloses an electrolytic bath liquid outlet pipeline joint, and belongs to the technical field of electrolytic bath equipment. The connector comprises a flange plate, a plurality of hydrogen side outlet branch pipes and a plurality of oxygen side outlet branch pipes, a plurality of through holes are formed in the flange plate, the through holes are formed in the same height, the hydrogen side outlet branch pipes and the oxygen side outlet branch pipes are alternately connected with the through holes, each hydrogen side outlet branch pipe is communicated with a hydrogen side outlet header pipe, the hydrogen side outlet header pipe is connected with a hydrogen side outlet flange, and the hydrogen side outlet flange is connected with a hydrogen side outlet pipe. Each oxygen side outlet branch pipe is communicated with an oxygen side outlet header pipe, the oxygen side outlet header pipe is connected with an oxygen side outlet flange, the hydrogen side outlet header pipe and the oxygen side outlet header pipe are arranged at the same height, and the hydrogen side outlet flange and the oxygen side outlet flange are arranged at the same height. The pressure difference of the outlet can be reduced, so that a flow field in the electrolytic bath is distributed more uniformly, and a dead angle area is not easy to form; and meanwhile, the blow-by phenomenon caused by rising of the pressure difference of the cathode and anode chambers due to different outlet resistances can be prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolytic cell equipment, specifically to an electrolytic cell outlet pipe connector. Background Technology

[0002] An electrolyzer is the main equipment for producing hydrogen and oxygen by electrolyzing water. Electrolytes are filled into the electrolyzer, and water decomposes under the action of direct current. Hydrogen is produced on the cathode surface and oxygen is produced on the anode surface. The separated hydrogen flows out from the hydrogen side outlet pipe, and the separated oxygen flows out from the oxygen side outlet pipe. After separation, purification, cooling, and drying processes, high-purity hydrogen is obtained.

[0003] The design of the outlet pipe of a traditional electrolyzer can affect the flow field distribution inside the electrolyzer, and thus affect the hydrogen production efficiency of the entire electrolyzer. Traditional electrolyzer pipe outlets usually adopt a single outlet method, which can easily form eddies inside the electrolyzer and accumulate at the pipe outlet to form dead zones, reducing electrolysis efficiency.

[0004] Moreover, traditional electrolyzers are prone to different resistances at the hydrogen and oxygen outlets, which increases the pressure difference between the anode and cathode chambers and causes cross-contamination.

[0005] Therefore, it is necessary to propose a connector for the outlet pipe of an electrolytic cell to solve the above-mentioned technical problems existing in the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide a connector for the outlet pipe of an electrolytic cell to solve the problem that eddies are easily formed and dead zones are accumulated at the outlet of the electrolytic cell pipe.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An electrolytic cell outlet pipe connector includes a flange plate, several hydrogen-side outlet branch pipes, and several oxygen-side outlet branch pipes.

[0009] The flange plate is provided with a plurality of through holes, all of which are at the same height;

[0010] The hydrogen-side outlet branch pipe and the oxygen-side outlet branch pipe are alternately connected to the through hole;

[0011] Each hydrogen-side outlet branch pipe is connected to the hydrogen-side outlet main pipe, and the hydrogen-side outlet main pipe is connected to the hydrogen-side outlet flange.

[0012] Each oxygen-side outlet branch pipe is connected to the oxygen-side outlet main pipe, and the oxygen-side outlet main pipe is connected to the oxygen-side outlet flange.

[0013] The hydrogen-side outlet manifold and the oxygen-side outlet manifold are located at the same height.

[0014] The hydrogen-side outlet flange and the oxygen-side outlet flange are located at the same height.

[0015] Preferably, the through holes are evenly spaced on the flange plate, and each through hole has the same size.

[0016] Preferably, the flange plate is provided with a plurality of first screw holes.

[0017] Preferably, the hydrogen-side outlet branch pipe and the oxygen-side outlet branch pipe are of the same size.

[0018] Preferably, it also includes a hydrogen side bend and an oxygen side bend;

[0019] One end of the hydrogen side bend is connected to the hydrogen side outlet main pipe, and the other end of the hydrogen side bend is connected to the hydrogen side outlet flange.

[0020] One end of the oxygen-side bend is connected to the oxygen-side outlet main pipe, and the other end of the oxygen-side bend is connected to the oxygen-side outlet flange.

[0021] Preferably, several sealing lines are provided on the hydrogen-side outlet flange and the oxygen-side outlet flange, respectively.

[0022] Preferably, a plurality of second screw holes are provided on the hydrogen-side outlet flange and the oxygen-side outlet flange respectively.

[0023] Preferably, the vertical distance between the hydrogen-side outlet flange and the flange plate is equal to the vertical distance between the oxygen-side outlet flange and the flange plate.

[0024] Preferably, the flange plate is rectangular in shape.

[0025] Compared with the prior art, this utility model has the following advantages:

[0026] As described above, the electrolytic cell outlet pipe connector of this utility model is provided with multiple hydrogen-side outlet branch pipes and multiple oxygen-side outlet branch pipes, which can reduce the pressure difference at the outlet, make the flow field distribution inside the electrolytic cell more uniform, and prevent the formation of dead zones, thereby improving the electrolysis efficiency.

[0027] This invention sets the hydrogen-side outlet branch pipe and the oxygen-side outlet branch pipe at the same height, the hydrogen-side outlet main pipe and the oxygen-side outlet main pipe at the same height, and the hydrogen-side outlet flange and the oxygen-side outlet flange at the same height. This helps to ensure that the resistance of hydrogen and oxygen is the same and prevents cross-flow caused by the increase in the pressure difference between the anode and cathode chambers due to different outlet resistance.

[0028] This invention also provides several sealing lines on the hydrogen-side outlet flange and the oxygen-side outlet flange to ensure the sealing of the interface. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0030] Figure 1 This is a schematic diagram of the structure of an electrolytic cell outlet pipe connector in one embodiment;

[0031] Figure 2 for Figure 1 The main view;

[0032] Figure 3 for Figure 1 Top view;

[0033] Figure 4 for Figure 1 The right view;

[0034] Figure 5 This is a schematic diagram of the flange plate in the embodiment.

[0035] In the diagram: 1-Flange plate; 2-Hydrogen-side outlet flange; 3-Oxygen-side outlet flange; 4-Hydrogen-side outlet main pipe; 5-Oxygen-side outlet main pipe; 6-Hydrogen-side outlet branch pipe; 7-Oxygen-side outlet branch pipe; 8-Hydrogen-side bend pipe; 9-Oxygen-side bend pipe; 10-Through hole; 11-First screw hole; 12-Second screw hole; 13-Sealing line. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Example

[0042] like Figures 1 to 5 As shown in the figure, this embodiment describes an electrolytic cell outlet pipe connector, which includes a flange plate 1, a hydrogen-side outlet branch pipe 6, and an oxygen-side outlet branch pipe 7.

[0043] In this embodiment, the flange plate 1 is rectangular in shape, and eight through holes 10 are provided in the middle of the flange plate 1. The eight through holes 10 are equally spaced and at the same height, and each through hole 10 has the same size.

[0044] In this embodiment, there are 4 hydrogen-side outlet branch pipes 6 and 4 oxygen-side outlet branch pipes 7. The 4 hydrogen-side outlet branch pipes 6 and the 4 oxygen-side outlet branch pipes 7 are of the same size, and the hydrogen-side outlet branch pipes 6 and oxygen-side outlet branch pipes 7 are alternately connected to the through holes 10.

[0045] All four hydrogen-side outlet branch pipes 6 are connected to the hydrogen-side outlet main pipe 4, and all four oxygen-side outlet branch pipes 7 are connected to the oxygen-side outlet main pipe 5.

[0046] The hydrogen-side outlet manifold 4 and the oxygen-side outlet manifold 5 are set at the same height, and both the hydrogen-side outlet manifold 4 and the oxygen-side outlet manifold 5 are parallel to the flange plate 1.

[0047] The hydrogen-side outlet main pipe 4 is connected to the hydrogen-side outlet flange 2 via the hydrogen-side bend pipe 8, and the oxygen-side outlet main pipe 5 is connected to the oxygen-side outlet flange 3 via the oxygen-side bend pipe 9. The hydrogen-side outlet flange 2 and the oxygen-side outlet flange 3 are set at the same height.

[0048] In this embodiment, the vertical distance between the hydrogen-side outlet flange 2 and the flange plate 1 is equal to the vertical distance between the oxygen-side outlet flange 3 and the flange plate 1.

[0049] like Figure 5 As shown, in this embodiment, 18 first screw holes 11 are provided around the flange plate 1, arranged in rows of 9. The first screw holes 11 are used to fix the flange plate 1 to the end plate of the electrolytic cell, so that the hydrogen side outlet branch pipe 6 and the oxygen side outlet branch pipe 7 are connected to the inside of the electrolytic cell.

[0050] In this embodiment, four second screw holes 12 are respectively provided on the hydrogen-side outlet flange 2 and the oxygen-side outlet flange 3. The second screw holes 12 are used to fix the hydrogen-side outlet flange 2 and the oxygen-side outlet flange 3 on the gas-liquid separator, so that the hydrogen-side outlet main pipe 4 and the oxygen-side outlet main pipe 5 are connected to the gas-liquid separator.

[0051] Multiple sealing lines 13 are also provided on the hydrogen-side outlet flange 2 and the oxygen-side outlet flange 3 respectively. When the hydrogen-side outlet flange 2 and the oxygen-side outlet flange 3 are connected to the gas-liquid separator, the sealing of the interface can be ensured, and the gas and liquid can flow out smoothly into the separation and purification stage.

[0052] When the electrolyzer starts working, the hydrogen produced in the electrolyzer flows out from the hydrogen-side outlet branch pipe 6, and the oxygen flows out from the oxygen-side outlet branch pipe 7. The hydrogen-side outlet main pipe 4 collects the gas from the hydrogen-side outlet branch pipe 6, and the oxygen-side outlet main pipe 5 collects the gas from the oxygen-side outlet branch pipe 7. The gas in the hydrogen-side outlet main pipe 4 enters the subsequent processing pipeline through the hydrogen-side bend pipe 8, and the gas in the oxygen-side outlet main pipe 5 enters the corresponding processing pipeline through the oxygen-side bend pipe 9.

[0053] This embodiment, by setting multiple hydrogen-side outlet branch pipes 6 and multiple oxygen-side outlet branch pipes 7, can effectively reduce the outlet pressure difference, make the flow field distribution inside the electrolyzer more uniform, and prevent the formation of triangular dead zones, thereby improving electrolysis efficiency.

[0054] In this embodiment, the hydrogen-side outlet branch pipe 6 and the oxygen-side outlet branch pipe 7 are set at the same height, the hydrogen-side outlet main pipe 4 and the oxygen-side outlet main pipe 5 are set at the same height, and the hydrogen-side outlet flange 2 and the oxygen-side outlet flange 3 are set at the same height. This helps to ensure that the resistance of hydrogen and oxygen is the same and prevents cross-flow caused by the increase in the pressure difference between the anode and cathode chambers due to different outlet resistance.

[0055] In this embodiment, the number of hydrogen-side outlet branch pipe 6 and oxygen-side outlet branch pipe 7 can be reasonably changed according to actual production needs, and the through hole 10 on the flange plate 1 can also be changed accordingly.

[0056] The embodiments of this utility model are only used to illustrate the technical solutions of this utility model and are not intended to limit it. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A connector for the outlet pipe of an electrolytic cell, characterized in that: Includes flange plate, several hydrogen-side outlet branch pipes and several oxygen-side outlet branch pipes; The flange plate is provided with a plurality of through holes, all of which are at the same height; The hydrogen-side outlet branch pipe and the oxygen-side outlet branch pipe are alternately connected to the through hole; Each hydrogen-side outlet branch pipe is connected to the hydrogen-side outlet main pipe, and the hydrogen-side outlet main pipe is connected to the hydrogen-side outlet flange. Each oxygen-side outlet branch pipe is connected to the oxygen-side outlet main pipe, and the oxygen-side outlet main pipe is connected to the oxygen-side outlet flange. The hydrogen-side outlet manifold and the oxygen-side outlet manifold are located at the same height. The hydrogen-side outlet flange and the oxygen-side outlet flange are located at the same height.

2. The electrolytic cell outlet pipe connector according to claim 1, characterized in that: The through holes are evenly spaced on the flange plate, and each through hole has the same size.

3. The electrolytic cell outlet pipe connector according to claim 1, characterized in that: The flange plate is provided with several first screw holes.

4. The electrolytic cell outlet pipe connector according to claim 1, characterized in that: The hydrogen-side outlet branch pipe and the oxygen-side outlet branch pipe are of the same size.

5. The electrolytic cell outlet pipe connector according to claim 1, characterized in that: It also includes hydrogen side bends and oxygen side bends; One end of the hydrogen side bend is connected to the hydrogen side outlet main pipe, and the other end of the hydrogen side bend is connected to the hydrogen side outlet flange. One end of the oxygen-side bend is connected to the oxygen-side outlet main pipe, and the other end of the oxygen-side bend is connected to the oxygen-side outlet flange.

6. The electrolytic cell outlet pipe connector according to claim 1, characterized in that: Several sealing lines are respectively installed on the hydrogen-side outlet flange and the oxygen-side outlet flange.

7. The electrolytic cell outlet pipe connector according to claim 6, characterized in that: Several second screw holes are respectively provided on the hydrogen-side outlet flange and the oxygen-side outlet flange.

8. The electrolytic cell outlet pipe connector according to claim 1, characterized in that: The vertical distance between the hydrogen-side outlet flange and the flange plate is equal to the vertical distance between the oxygen-side outlet flange and the flange plate.

9. The electrolytic cell outlet pipe connector according to claim 1, characterized in that: The flange plate is rectangular in shape.

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