Gas-liquid separator applied to field of hydrogen production by water electrolysis
Patent Information
- Application Number
- CN202521983615.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-16
AI Technical Summary
[0003]传统的气液分离器主要利用重力实现气液的分离，其中有一种分离方式是在气液分离器内部增加旋风分离组件，由于旋风分离组件的结构往往相对复杂，且若是零件损坏或脱落，存在拆卸不便、难以维修的问题；针对以上问题，本申请提出一种新的技术方案
[0009]综上所述，本申请包括以下有益技术效果：由于增加了分离组件对气体中液体的分离环节，提高了容器的分离效果。因为分离组件安装在罐体出气末端，避免了气体在罐体内部与液面接触导致可能在分离后由存在新的液滴夹带。另外，分离组件的安装位置嵌入了气相出口预设的管道中，不仅不占据容器空间，更便于后期拆卸用于维护和检修。
Smart Images
Figure CN224793056U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hydrogen production technology by water electrolysis, and in particular to a gas-liquid separator used in the field of hydrogen production by water electrolysis. Background Technology
[0002] In the field of hydrogen production by water electrolysis, a gas-liquid separator is a device specifically designed to separate the liquid components (such as alkaline solution and water vapor) in hydrogen and oxygen. It is generally located downstream of the electrolyzer and has an alkaline solution at a certain level inside, used to separate the alkaline solution carried by hydrogen and oxygen in the electrolyzer for gas-liquid separation.
[0003] Traditional gas-liquid separators mainly utilize gravity to achieve gas-liquid separation. One separation method involves adding a cyclone separation component inside the gas-liquid separator. However, the structure of the cyclone separation component is often relatively complex, and if parts are damaged or detached, disassembly is inconvenient and maintenance is difficult. To address these issues, this application proposes a new technical solution. Utility Model Content
[0004] In order to improve the efficiency of gas-liquid separation while enhancing the ease of installation or disassembly, this application provides a gas-liquid separator for use in the field of hydrogen production by water electrolysis.
[0005] This application provides a gas-liquid separator for hydrogen production via water electrolysis, employing the following technical solution:
[0006] A gas-liquid separator for hydrogen production via water electrolysis includes a tank, a gas phase outlet installed at the top of the tank, a liquid phase outlet installed at the bottom of the tank, and a gas-liquid inlet installed on the side of the tank. It also includes a separation assembly installed at the gas phase outlet. The separation assembly includes a wire mesh, a ring plate, and a vertically arranged separation cylinder. The ring plate is connected to the bottom of the separation cylinder. A flange structure is installed on a pre-set pipe at the gas phase outlet. The separation cylinder passes through a pre-set through hole in the center of the flange cover of the flange structure, and the diameter of the ring plate is larger than the through hole. The ring plate and the flange cover are connected. The diameter of the separation cylinder is smaller than the through hole, and a gas outlet pipe is sleeved on the outside of the separation cylinder. The wire mesh is installed inside the separation cylinder.
[0007] Optionally, the ring plate has a snap-fit hole in the middle, the snap-fit hole and the ring plate are arranged concentrically, the bottom of the separation cylinder is snapped into the snap-fit hole, and the ring plate has multiple bolt holes along its circumference and the ring plate is fixed to the flange cover by bolts.
[0008] Optionally, the wire mesh is rolled up and vertically filled into a separation cylinder, and multiple welding wires are fixed inside the separation cylinder, with the welding wires located above and below the wire mesh.
[0009] In summary, this application offers the following beneficial technical advantages: The addition of a separation component to separate liquid from gas improves the container's separation efficiency. Because the separation component is installed at the gas outlet end of the tank, it prevents gas from contacting the liquid surface inside the tank, thus avoiding potential entrainment of new liquid droplets after separation. Furthermore, the separation component is embedded in a pre-designed pipe at the gas phase outlet, saving container space and facilitating later disassembly for maintenance and repair. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this application;
[0011] Figure 2 yes Figure 1 Enlarged view of section A;
[0012] Figure 3 This is a top view of the ring plate in this application.
[0013] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. Separation assembly; 21. Wire mesh; 22. Ring plate; 221. Bolt hole; 23. Separation cylinder; 24. Snap-fit hole; 25. Welding wire; 26. Gas outlet pipe; 3. Flange structure; 31. Flange cover; 32. Flange plate. Detailed Implementation
[0014] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.
[0015] This application discloses a gas-liquid separator used in the field of hydrogen production by water electrolysis.
[0016] Reference Figure 1 and Figure 2 The gas-liquid separator used in water electrolysis for hydrogen production includes a tank 1, a gas phase outlet located at the top of the tank 1, a liquid phase outlet installed at the bottom of the tank 1, and a gas-liquid inlet installed on the side of the tank 1, each equipped with corresponding pipes and valves. This application also includes a separation assembly 2 installed at the gas phase outlet, which includes a wire mesh 21, a ring plate 22, and a vertically arranged separation cylinder 23.
[0017] Reference Figure 2 and Figure 3 The ring plate 22 and the separator 23 are snapped together. The center of the ring plate 22 has a snap-fit hole 24 with the same center as the ring plate 22. The bottom of the separator 23 is inserted into the snap-fit hole 24 of the ring plate 22 and the outer wall of the separator 23 is in contact with the hole wall of the snap-fit hole 24.
[0018] The gas phase outlet is equipped with a flange structure 3. The pre-installed pipeline is designed to allow manual access. When disassembly and maintenance are required, the flange structure 3 can be disassembled for maintenance. The flange 32 of the flange structure 3 is fitted onto the pre-installed pipeline at the gas phase outlet. The separation cylinder 23 passes through the pre-installed through hole in the center of the flange cover 31 of the flange structure 3. The diameter of the ring plate 22 is larger than the through hole. The upper surface of the ring plate 22 is attached to the flange cover 31. The ring plate 22 has multiple bolt holes 221 along its circumference. The ring plate 22 and the flange cover 31 are connected and fixed by bolts and nuts.
[0019] The diameter of the separator cylinder 23 is smaller than the pre-set through hole of the flange cover 31, and an air outlet pipe 26 is sleeved on the outside of the separator cylinder 23. The outer wall of the air outlet pipe 26 is attached to the inner wall of the through hole, and the air outlet pipe 26 and the flange cover 31 are welded together.
[0020] The wire mesh 21 can be made of stainless steel and is installed inside the separation cylinder 23. The wire mesh 21 is rolled up (i.e., rolled up in multiple loops) and vertically filled inside the separation cylinder 23. Multiple welding wires 25 are fixed inside the separation cylinder 23. The welding wires 25 are overlapped in a cross shape when viewed from above. The ends of the welding wires 25 are connected to the separation cylinder 23 by welding and are located at least above the wire mesh 21 (this application takes the upper and lower ends of the rolled-up wire mesh 21 as an example). The wire mesh 21 is located between the upper and lower welding wires 25. The welding wires 25 can play a certain restrictive role for the wire mesh 21. By overlapping in a cross shape, the wire mesh 21 is sealed between the welding wires 25 at both ends, which effectively reduces the possibility of the airflow blowing the wire mesh 21 away or causing it to shake and fall off, while not affecting the gas flow.
[0021] With the above structure, the separator 23 is filled with wire mesh 21. When gas carrying a small amount of liquid droplets passes through the wire mesh 21 at a certain speed, the larger droplets will be intercepted and accumulated by the wire mesh 21 because the inertia of the droplets is significantly greater than that of the gas. The accumulated droplets will fall and return to the tank 1 when their own gravity can offset the resultant force of the gas's upward force and the liquid's surface tension.
[0022] In the above structure, the separation effect of the container is improved by adding a separation component 2 to separate the liquid from the gas. Because the separation component 2 is installed at the gas outlet end of the tank 1, it avoids the gas from contacting the liquid surface inside the tank 1, which could lead to the formation of new liquid droplets after separation. In addition, the installation position of the separation component 2 is embedded in the pre-set pipe of the gas phase outlet, which not only does not occupy container space, but also facilitates later disassembly for maintenance and repair.
[0023] How to use:
[0024] Weld and fix the gas outlet pipe 26 and the flange cover 31. Fix the wire mesh 21 and the separator cylinder 23. Connect one end of the ring plate 22 and the separator cylinder 23. Insert the separator cylinder 23 into the gas outlet pipe 26. Make the ring plate 22 abut against the flange cover 31. Align the holes on the flange cover 31 with the bolt holes 221 of the ring plate 22. Fix the ring plate 22 and the flange cover 31 with bolts. Fit the flange 32 onto the pre-set pipe of the gas phase outlet of the tank body 1. Align and fix the flange cover 31 and the flange 32 after the above structures are installed.
[0025] When it is necessary to disassemble, repair or inspect the inside of tank 1, first remove flange cover 31 and flange 32, and then the remaining structure can be disassembled one by one for subsequent work.
[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A gas-liquid separator for hydrogen production by water electrolysis, comprising a tank (1), a gas phase outlet installed at the top of the tank (1), a liquid phase outlet installed at the bottom of the tank (1), and a gas-liquid inlet installed on the side of the tank (1), characterized in that: It also includes a separation assembly (2) installed at the gas phase outlet. The separation assembly (2) includes a wire mesh (21), an annular plate (22), and a vertically arranged separation cylinder (23). The annular plate (22) is connected to the bottom of the separation cylinder (23). The gas phase outlet has a pre-set pipe with a flange structure (3). The separation cylinder (23) passes through a pre-set through hole in the center of the flange cover (31) of the flange structure (3), and the diameter of the annular plate (22) is larger than the through hole. The annular plate (22) and the flange cover (31) are connected. The diameter of the separation cylinder (23) is smaller than the through hole, and an outlet pipe (26) is sleeved on the outside of the separation cylinder (23). The wire mesh (21) is installed inside the separation cylinder (23).
2. The gas-liquid separator for hydrogen production by water electrolysis according to claim 1, characterized in that: The ring plate (22) has a snap-fit hole (24) in the middle. The snap-fit hole (24) and the ring plate (22) are set at the same center. The bottom of the separation cylinder (23) is snapped into the snap-fit hole (24). The ring plate (22) has multiple bolt holes (221) along its circumference and the ring plate (22) is fixed to the flange cover (31) by bolts.
3. The gas-liquid separator for hydrogen production by water electrolysis according to claim 1, characterized in that: The wire mesh (21) is rolled up vertically and filled into the separation cylinder (23). Multiple welding wires (25) are fixed inside the separation cylinder (23), and the welding wires (25) are located on the top and bottom sides of the wire mesh (21).