Gas detection system of many-for-one hydrogen production equipment

Abstract

The utility model provides a gas detection system of many-to-one hydrogen production equipment, which is applied to the technical field of hydrogen production equipment and comprises a gas generation part and a gas treatment part, hydrogen and oxygen generated by each electrolytic cell are respectively connected with the gas treatment part through a sampling pipe, and a valve is arranged on the sampling pipe; the gas treatment part comprises a hydrogen treatment module and an oxygen treatment module, each of the hydrogen treatment module and the oxygen treatment module comprises a gas analysis instrument, a valve of any sampling pipe is controlled to be opened, so that hydrogen generated by the corresponding electrolytic cell enters the hydrogen treatment module, and oxygen generated by the corresponding electrolytic cell enters the oxygen treatment module; therefore, the corresponding gas analysis instrument performs gas analysis. The sampling pipe is arranged to form a multi-channel gas detection structure, and the gas treatment part is used for realizing treatment operation before gas analysis, so that the condition of gas generated by each electrolytic cell can be independently detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen production equipment, and in particular relates to a gas detection system for many-to-one hydrogen production equipment. Background Art

[0002] Water electrolysis is a relatively convenient method for producing hydrogen. Direct current is passed through an electrolytic cell filled with electrolyte, causing water molecules to undergo an electrochemical reaction at the electrodes, decomposing into hydrogen and oxygen.

[0003] During the operation of the existing many-to-one hydrogen production equipment, the hydrogen and oxygen produced by multiple electrolyzers are merged and converged into the hydrogen / oxygen separator. The data measured by the online gas analyzer on the hydrogen production frame is the total gas data in the separator, which cannot intuitively reflect the gas purity data of a single electrolyzer and cannot obtain the working conditions of a single electrolyzer. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a gas detection system for a many-to-one hydrogen production equipment. By setting up sampling tubes to form a multi-channel detection structure for gas, and realizing processing operations before gas analysis through the gas processing part, the gas generated by each electrolytic cell can be individually detected to judge the working effect of the electrolytic cell.

[0005] A gas detection system for a many-to-one hydrogen production device includes a gas generation part and a gas processing part. The gas generation part includes multiple electrolytic cells for generating hydrogen and oxygen. The hydrogen and oxygen generated by each electrolytic cell are respectively connected to the gas processing part via sampling tubes, and the sampling tubes are equipped with valves. The gas processing part includes a hydrogen processing module and an oxygen processing module, and the hydrogen processing module and the oxygen processing module each include a gas analysis instrument. The valve of any sampling tube is controlled to open so that the hydrogen generated by the corresponding electrolytic cell enters the hydrogen processing module, and the oxygen generated by the corresponding electrolytic cell enters the oxygen processing module, so that the corresponding gas analysis instrument performs gas analysis.

[0006] Preferably, the hydrogen processing module and the oxygen processing module respectively include a gas separator, a gas cooler, a steam-water separator and a gas analysis instrument connected in sequence, and a gas processing pipeline is further configured between the steam-water separator and the gas analysis instrument.

[0007] Preferably, the gas separator is provided with a first liquid level gauge and a first drainer, and the steam-water separator is provided with a second liquid level gauge and a second drainer.

[0008] Preferably, the gas outlet at the top of the steam-water separator is connected to a gas analysis instrument, and the water outlet at the bottom of the steam-water separator is connected to a second drainer.

[0009] Preferably, the electrolyzer is provided with a main pipeline leading to the hydrogen production frame, the main pipeline is provided with a sampling tube, and two main pipelines are provided, one of which is used as a hydrogen pipeline and the other is used as an oxygen pipeline.

[0010] Preferably, the hydrogen pipelines of the multiple electrolyzers are connected to the hydrogen processing module through sampling tubes, and the oxygen pipelines of the multiple electrolyzers are connected to the oxygen processing module through sampling tubes.

[0011] The beneficial effects of the present invention are as follows: the gas detection system of the many-to-one hydrogen production equipment forms a multi-channel gas detection structure by arranging sampling tubes, and realizes gas diversion by controlling the on-off of the sampling tubes. It can individually detect the actual situation of the gas generated by each electrolytic cell and judge the working effect of the electrolytic cell.

[0012] In addition, the gas processing part realizes the processing operation before gas analysis, and is processed in sequence by the gas separator, gas cooler, and steam-water separator before being detected and analyzed by the gas analyzer, which can improve the accuracy of gas detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the sampling tube of the utility model;

[0016] Figure 3 It is a structural diagram of the gas processing part of the utility model.

[0017] The following are marked in the figure: 1. Electrolyzer; 2. Hydrogen processing module; 3. Oxygen processing module; 4. Gas separator; 5. Liquid level gauge 1; 6. Drainer 1; 7. Gas cooler; 8. Steam-water separator; 9. Liquid level gauge 2; 10. Drainer 2; 11. Gas analyzer; 12. Gas processing pipeline; 13. Main pipeline; 14. Sampling tube. DETAILED DESCRIPTION

[0018] Example 1

[0019] like Figure 1As shown, a gas detection system for a many-to-one hydrogen production equipment includes a gas generation part and a gas processing part, wherein the gas generation part includes multiple electrolytic cells 1 for generating hydrogen and oxygen, and the gas processing part includes a hydrogen processing module 2 and an oxygen processing module 3. The hydrogen and oxygen generated by each electrolytic cell 1 in the gas generation part are respectively connected to the gas processing part through a sampling tube 14.

[0020] Specifically, such as Figure 1 、 Figure 2 As shown, the electrolyzer 1 is provided with a main pipeline 13 leading to the hydrogen production frame, and a sampling tube 14 is provided on the main pipeline 13. Two main pipelines 13 are provided, one of which is used as a hydrogen pipeline and the other is used as an oxygen pipeline. The hydrogen pipelines of multiple electrolyzers 1 are connected to the hydrogen processing module 2 through the sampling tube 14, and the oxygen pipelines of multiple electrolyzers 1 are connected to the oxygen processing module 3 through the sampling tube 14.

[0021] In addition, a valve is provided on the sampling tube 14. The valve of any sampling tube 14 is controlled to open so that the hydrogen produced by the corresponding electrolytic cell 1 enters the hydrogen processing module 2, and the oxygen produced by the corresponding electrolytic cell 1 enters the oxygen processing module 3, so that the corresponding gas analyzer 11 performs gas analysis.

[0022] The main pipeline 13 is used to collect the hydrogen and oxygen produced by the electrolyzer 1 to achieve normal hydrogen production operation. The sampling tube 14 is used to guide the hydrogen produced by a single electrolyzer 1 into the hydrogen processing module 2 or to guide the oxygen into the oxygen processing module 3, so as to facilitate the subsequent detection and analysis of the gas, thereby judging the working condition of the corresponding electrolyzer 1.

[0023] like Figure 3 As shown, in order to improve the accuracy of gas detection, it is necessary to process the gas before detection. The hydrogen processing module 2 and the oxygen processing module 3 respectively include a gas separator 4, a gas cooler 7, a steam-water separator 8 and a gas analyzer 11 connected in sequence. A gas processing pipeline 12 is also configured between the steam-water separator 8 and the gas analyzer 11. The gas processing pipeline 12 is used to discharge excess gas in the hydrogen processing module 2 or the oxygen processing module 3 to avoid affecting the results of the next gas detection analysis. In addition, the working principles of the gas separator 4, the gas cooler 7, the steam-water separator 8 and the gas analyzer 11 are all existing technologies and will not be described in detail here.

[0024] Specifically, the gas separator 4 is equipped with a liquid level gauge 5 and a drainer 6, and the steam-water separator 8 is equipped with a liquid level gauge 9 and a drainer 10. The gas outlet at the top of the steam-water separator 8 is connected to the gas analyzer 11, and the water outlet at the bottom of the steam-water separator 8 is connected to the drainer 10.

[0025] In this embodiment, the liquid level gauge 1 5 and the liquid level gauge 2 9 are both magnetic flap level gauges, which are used to monitor the liquid levels in the gas separator 4 and the steam-water separator 8, so as to facilitate the control of the drainer 1 6 and the drainer 2 10 for drainage. Among them, the output ends of the drainer 1 6 and the drainer 2 10 can be connected to the horizontal alkali tank (not shown in the figure).

[0026] It should be noted that if Figure 1 As shown, the input port of the gas separator 4, the input port of the gas analyzer 11, the input port of the gas treatment pipeline 12, the input port and output port of the drainer 1 6, and the input port and output port of the drainer 2 10 are all provided with valves, and valves of different types and specifications are selected according to actual needs to facilitate the control of the pipeline's on and off according to needs.

[0027] Working Principle: When the gas detection system for this many-to-one hydrogen production equipment is in use, when multiple electrolyzers 1 are operating normally to produce hydrogen, the valves on the sampling tubes 14 are closed, and the gas produced by each electrolyzer 1 enters the hydrogen production frame through the main pipeline 13. When the gas produced by a single electrolyzer 1 needs to be detected, the valve of the sampling tube 14 on the corresponding electrolyzer 1 is opened, and the gas is diverted to the gas processing unit, where it is processed and detected by the hydrogen processing module 2 or the oxygen processing module 3.

[0028] When hydrogen enters the hydrogen processing module 2 through the sampling tube 14, the solid particles or liquid droplets carried in the gas are first removed by the gas separator 4 to achieve gas-solid-liquid separation. At this time, the liquid is discharged in a timely manner by controlling the liquid level of the liquid level gauge 5 through the drain 6; after passing through the gas separator 4, the hydrogen is heat exchanged through the gas cooler 7 to reduce the gas temperature; then the liquid and gas are separated by the steam-water separator 8, and the liquid is discharged in a timely manner by controlling the liquid level of the liquid level gauge 9 through the drain 10.

[0029] The gas processed by the gas separator 4, gas cooler 7 and steam-water separator 8 in sequence enters the gas analyzer 11 for gas detection and analysis to obtain the required data, and finally the excess gas in the hydrogen processing module 2 is discharged through the gas processing pipeline 12.

[0030] In addition, the process of processing and detecting oxygen is similar to the above-mentioned process of processing and detecting hydrogen, and will not be described in detail here.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A gas detection system for a many-to-one hydrogen production equipment, comprising a gas generation part and a gas processing part, characterized in that: The gas generation part includes a plurality of electrolytic cells (1) for generating hydrogen and oxygen. The hydrogen and oxygen generated by each electrolytic cell (1) are connected to the gas processing part through sampling tubes (14) respectively. The sampling tubes (14) are provided with valves. The gas processing part includes a hydrogen processing module (2) and an oxygen processing module (3), and the hydrogen processing module (2) and the oxygen processing module (3) both include a gas analysis instrument (11). The valve of any sampling tube (14) is controlled to open so that the hydrogen generated by the corresponding electrolyzer (1) enters the hydrogen processing module (2), and the oxygen generated by the corresponding electrolyzer (1) enters the oxygen processing module (3), thereby allowing the corresponding gas analysis instrument (11) to perform gas analysis.

2. The gas detection system for many-to-one hydrogen production equipment according to claim 1, characterized in that: The hydrogen processing module (2) and the oxygen processing module (3) respectively include a gas separator (4), a gas cooler (7), a steam-water separator (8) and a gas analysis instrument (11) which are connected in sequence, and a gas processing pipeline (12) is also arranged between the steam-water separator (8) and the gas analysis instrument (11).

3. The gas detection system for many-to-one hydrogen production equipment according to claim 2, characterized in that: The gas separator (4) is provided with a first liquid level gauge (5) and a first drainer (6), and the steam-water separator (8) is provided with a second liquid level gauge (9) and a second drainer (10).

4. The gas detection system for many-to-one hydrogen production equipment according to claim 3, characterized in that: The gas outlet at the top of the steam-water separator (8) is connected to a gas analysis instrument (11), and the water outlet at the bottom of the steam-water separator (8) is connected to a drainer 2 (10).

5. The gas detection system for many-to-one hydrogen production equipment according to claim 1, characterized in that: The electrolyzer (1) is provided with a main pipeline (13) leading to the hydrogen production frame, and a sampling tube (14) is provided on the main pipeline (13). There are two main pipelines (13), one of which is used as a hydrogen pipeline and the other is used as an oxygen pipeline.

6. The gas detection system for many-to-one hydrogen production equipment according to claim 1, characterized in that: The hydrogen pipelines of the multiple electrolyzers (1) are connected to the hydrogen processing module (2) through the sampling tube (14), and the oxygen pipelines of the multiple electrolyzers (1) are connected to the oxygen processing module (3) through the sampling tube (14).

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