一种气液流动均衡型碱液电解制氢分离系统
By using multiple parallel pipelines to connect the electrolyzer and the separation system in the water electrolysis hydrogen production system, the problem of uneven gas and liquid phase flow was solved, achieving uniform distribution of gas and alkali solution, and improving the system's operating efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANG SU SHUANG LIANG QING NENG YUAN KE JI YOU XIAN GONG SI
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
In existing water electrolysis hydrogen production systems, the imbalance between gas and liquid phase flow leads to pressure differential imbalance within the diaphragm of the electrolyzer, gas crosstalk, and uneven alkali supply, affecting system operating efficiency and stability.
Multiple parallel pipelines are used to connect the electrolyzer and the separation system to ensure uniform distribution of gas and alkali solution. Multiple parallel pipelines are also used to connect the hydrogen and oxygen main pipelines and the alkali solution equalization input pipeline to balance the gas-liquid output resistance and alkali solution flow rate of each electrolyzer.
It improves gas extraction efficiency, reduces energy loss, extends equipment life, and ensures stable system operation and fault tolerance.
Smart Images
Figure CN224513642U_ABST
Abstract
Claims
1. A hydrogen separation system for an alkaline electrolysis of a gas-liquid flow balancing type, characterized in that, It includes an electrolytic cell system, a separation system, and a pipeline connection system. The pipeline connection system includes a product output pipeline and an alkali balance input pipeline. The product output pipeline is connected to the upstream electrolytic cell and the downstream separation system in a multi-tube bundle parallel configuration. The pipeline lengths connecting the alkali balance input pipeline to each alkaline electrolytic cell are all equal.
2. The hydrogen separation system of claim 1, wherein, The electrolytic cell system includes several alkaline electrolytic cells arranged in parallel; the product output pipeline includes a hydrogen main pipeline and an oxygen main pipeline; Each of the alkaline electrolytic cells is equipped with a hydrogen outlet tube bundle and an oxygen outlet tube bundle, wherein the hydrogen outlet tube bundle is connected to the hydrogen main tube and the oxygen outlet tube bundle is connected to the oxygen main tube. The hydrogen outlet tube bundle includes several hydrogen lines, and the oxygen outlet tube bundle includes several oxygen lines.
3. The gas-liquid flow equilibrium type alkaline electrolysis hydrogen production separation system according to claim 2, characterized in that, The separation system includes a hydrogen-gas-liquid separator and an oxygen-gas-liquid separator. The product output pipeline also includes a hydrogen delivery tube bundle and an oxygen delivery tube bundle. The downstream side of the hydrogen main pipe is connected to the hydrogen delivery tube bundle, and the other end of the hydrogen delivery tube bundle is connected to the hydrogen-gas-liquid separator. The downstream side of the oxygen main pipe is connected to the oxygen delivery tube bundle, and the other end of the oxygen delivery tube bundle is connected to the oxygen-gas-liquid separator. The hydrogen delivery tube bundle includes several hydrogen delivery tubes connected in parallel, and the oxygen delivery tube bundle includes several oxygen delivery tubes connected in parallel.
4. The hydrogen separation system of claim 1, wherein, The separation system also includes an alkali cooler. The inlet end of the alkali equalization input pipeline is connected to the alkali cooler, and the alkali equalization input pipeline is provided with an outlet end that is adapted to the number of alkaline electrolyzers. Each outlet end is connected to the alkali inlet of the alkaline electrolyzer.
5. The hydrogen separation system of claim 4, wherein, The alkali solution equalization input pipeline includes an alkali solution main pipe, a primary branch pipe, a secondary branch pipe, a tertiary branch pipe, etc. The alkali solution main pipe is connected to the midpoint of the primary branch pipe, the ends of the primary branch pipes are connected to the midpoints of the secondary branch pipes, the ends of the secondary branch pipes are connected to the midpoints of the tertiary branch pipes, etc., so that the outlet end of the upper branch pipe is connected to the midpoint of the next lower branch pipe.
6. The hydrogen separation system of claim 2, wherein, The hydrogen and oxygen outlet tube bundles are drawn from the alkaline electrolyzer, and the hydrogen outlet tube bundle includes three hydrogen lines and the oxygen outlet tube bundle includes three oxygen lines.
7. The hydrogen separation system of claim 3, wherein the hydrogen separation system further comprises a gas-liquid flow equalization device. The hydrogen delivery tube bundle includes four hydrogen delivery tubes, and the oxygen delivery tube bundle includes four oxygen delivery tubes.