CN213113539U - Pressure relief protection device for ion-exchange membrane electrolytic cell - Google Patents
Pressure relief protection device for ion-exchange membrane electrolytic cell Download PDFInfo
- Publication number
- CN213113539U CN213113539U CN202021959511.3U CN202021959511U CN213113539U CN 213113539 U CN213113539 U CN 213113539U CN 202021959511 U CN202021959511 U CN 202021959511U CN 213113539 U CN213113539 U CN 213113539U
- Authority
- CN
- China
- Prior art keywords
- water seal
- pressure water
- negative pressure
- electrolytic cell
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The application relates to a pressure relief protection device of an ion membrane electrolytic cell, which comprises a positive pressure water seal (2), a negative pressure water seal (3) and a communicating pipe (9) for connecting the positive pressure water seal and the negative pressure water seal; the tops of inlet pipelines of the positive pressure water seal (2) and the negative pressure water seal (3) are both connected with an anode side chlorine gas main pipe (1) of the ion membrane electrolytic cell, and the inlet of the negative pressure water seal (3) is positioned at one side close to the ion membrane electrolytic cell. This application pressure release protection device when the use of the positive pole side chlorine house steward of ionic membrane electrolysis trough, when the chlorine house steward pressure release not reach, pressure when great go out the chlorine pressure release of superhigh pressure through the malleation water seal, when the negative pressure appears in the electrolysis trough positive pole side, mend the air into electrolysis trough positive pole side through the negative pressure water seal and maintain the stable and as early as possible pressure release of electrolysis trough internal pressure, can effectively avoid the electrolysis trough parking in-process to appear negative pressure or malleation and lead to the damaged problem of ionic membrane from this.
Description
Technical Field
The application relates to the technical field of pressure relief protection, in particular to a pressure relief protection device for an ion membrane electrolytic cell.
Background
When the ion membrane electrolyzer is normally produced, in order to protect the safety of the electrolyzer and the ion membrane, a chlorine main pipe pressure interlocking tripping value is set in a DCS interlocking protection system, three parallel chlorine pressure transmitters carry out cascade interlocking feedback on the pressure of the chlorine main pipe, and when the cascade measured values of the three pressure transmitters reach the tripping value, the system interlocking tripping is triggered, so that the ion membrane caustic soda system is safely protected.
After the system jumps the car or the system parks, gaseous as early as possible steady pressure release in the electrolysis trough, if the gas with house steward in the electrolysis trough can not in time be discharged, can lead to the electrolysis trough malleation too big, the mixed gas of higher pressure in the electrolysis trough is detained for a long time and can the system explosion appear in the electrolysis trough, so need carry out the pressure release to the gaseous in the electrolysis trough after stopping, in order to avoid ionic membrane to influence the continuous steady operation of system, reduce the cost of producing, reduce staff's operating strength.
However, in practical application, the gas phase on the cathode side is required to be slightly higher than that on the anode side when the ion membrane electrolytic cell is normally produced, but since the cathode chamber of the electrolytic cell is slightly smaller than the anode chamber and the specific gravity of the hydrogen produced on the cathode side of the electrolytic cell is lighter, and the hydrogen is decompressed faster than chlorine under the same condition, the pressure of the cathode side is faster and the anode side of the electrolytic cell is slower when the electrolytic cell is decompressed, if the pressure is not stably decompressed, the pressure of the anode side is higher than that of the cathode side, reverse pressure difference occurs, so that the ion membrane is attached to the cathode side to cause pinholes to appear on the ion membrane, and a large area of damage to the.
Disclosure of Invention
The technical problem that this application will be solved provides an ionic membrane electrolysis trough pressure release protection device, and it can effectively avoid the electrolytic cell parking in-process to appear big negative pressure or big malleation and lead to the damaged problem of ionic membrane.
In order to solve the problems, the application provides a pressure relief protection device for an ion membrane electrolytic cell, which comprises a positive pressure water seal, a negative pressure water seal and a communicating pipe for connecting the positive pressure water seal and the negative pressure water seal; the tops of inlet pipelines of the positive pressure water seal and the negative pressure water seal are both connected with an anode side chlorine gas main pipe of the ionic membrane electrolytic cell, and an inlet of the negative pressure water seal is positioned at one side close to the ionic membrane electrolytic cell; the bottom of an inlet pipeline of the positive pressure water seal is inserted below the liquid level, the bottom of an outlet pipeline is positioned above the liquid level, the top of the inlet pipeline is communicated with the outside for discharging chlorine, the bottom of the inlet pipeline of the negative pressure water seal is positioned above the liquid level, the bottom of the outlet pipeline is inserted below the liquid level, and the top of the inlet pipeline is communicated with the outside for supplying air.
Preferably, the top of the outlet pipeline of the positive pressure water seal is communicated with the outside and is connected with the waste gas absorption tower.
Preferably, the positive pressure water seal is provided with a water adding pipe, and the negative pressure water seal is provided with an overflow pipe.
Preferably, a water replenishing valve is arranged on the water adding pipe.
Compared with the prior art, the method has the following advantages:
this application pressure release protection device when the use of the positive pole side chlorine house steward of ionic membrane electrolysis trough, when the chlorine house steward pressure release not reach, pressure when great go out the chlorine pressure release of superhigh pressure through the malleation water seal, when the negative pressure appears in the electrolysis trough positive pole side, mend the air into electrolysis trough positive pole side through the negative pressure water seal and maintain the stable and as early as possible pressure release of electrolysis trough internal pressure, can effectively avoid the electrolysis trough parking in-process to appear negative pressure or malleation and lead to the damaged problem of ionic membrane from this.
Drawings
The following describes embodiments of the present application in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a voltage relief protection device of an ion membrane electrolyzer according to an embodiment of the present application.
In the figure: 1-an anode side chlorine gas main pipe, 2-a positive pressure water seal, 3-a negative pressure water seal, 4-a water replenishing valve, 5-an exhaust pipe, 6-a waste gas absorption tower, 7-a gas replenishing pipe, 8-a water adding pipe, 9-a communicating pipe and 10-an overflow pipe.
Detailed Description
Referring to fig. 1, an embodiment of the present application provides a pressure relief protection device for an ion membrane electrolyzer, which mainly includes a positive pressure water seal 2, a negative pressure water seal 3, and a communicating pipe 9 connecting the two; the top parts of inlet pipelines of the positive pressure water seal 2 and the negative pressure water seal 3 are both connected with an anode side chlorine manifold 1 of the ion membrane electrolytic cell, the inlet of the negative pressure water seal 3 is positioned at one side close to the ion membrane electrolytic cell, and correspondingly, the positive pressure water seal 2 is positioned at one side far away from the ion membrane electrolytic cell. The anode side chlorine manifold 1 in the ion membrane electrolytic cell is used for conveying chlorine at the outlet of all the ion membrane electrolytic cells.
The bottom of an inlet pipeline of the positive pressure water seal 2 is inserted below the liquid level, the bottom of an outlet pipeline is positioned above the liquid level, the top of the outlet pipeline is communicated with the outside through an exhaust pipe 5 for discharging chlorine, and pressure relief is carried out when large positive pressure occurs. Further, the top of the outlet pipeline of the positive pressure water seal 2 is opened to the outside and is connected with an exhaust gas absorption tower 6.
The bottom of an inlet pipeline of the negative pressure water seal 3 is positioned above the liquid level, the bottom of an outlet pipeline is inserted below the liquid level, the top of the outlet pipeline is communicated with the outside (outside atmosphere) through an air supplementing pipe 7 for supplementing air (supplementing air), and pressurization is carried out when large negative pressure occurs.
The positive pressure water seal 2 is provided with a water adding pipe 8 for water supplement of the water seal, and the water adding pipe 8 is provided with a water supplementing valve 4; the negative pressure water seal 3 is provided with an overflow pipe 10. It can be understood that the positive pressure water seal 2 and the negative pressure water seal 3 are of a closed structure except for the connection with the inlet pipeline, the air outlet pipeline, the water adding pipe 8, the overflow pipe 10 and the like.
The working principle is as follows: when the ionic membrane caustic soda system is normally produced, the water replenishing valve 4 on the water replenishing pipe 8 is opened, new water is added into the positive pressure water seal 2 and the negative pressure water seal 3, the overflow port of the positive pressure water seal and the negative pressure water seal is ensured to have water overflow, and the chlorine main pipe 1 on the anode side, the positive pressure water seal 2 and the negative pressure water seal 3 are ensured to be connected completely. When the pressure of the chlorine manifold 1 on the anode side is higher, the chlorine with ultrahigh pressure is decompressed to the waste gas absorption tower 6 from the exhaust pipe 5 through the positive pressure water seal 2 for absorption treatment, so that the pressure in the electrolytic cell is ensured to be stable, and the ion membrane damage and explosion accidents caused by the fact that mixed gas stays in the electrolytic cell for a long time are avoided; when negative pressure appears on the anode side of the electrolytic cell, air is supplemented into the anode side of the electrolytic cell through the air supplementing pipe 7 through the negative pressure water seal 3, the pressure in the electrolytic cell is maintained to be stable, the pressure is relieved as soon as possible, it is guaranteed that an ion membrane of the electrolytic cell is not damaged, the system is guaranteed to be safely and stably stopped, the safety and stability of the system are improved, the production cost is reduced, and the operation intensity of workers is reduced.
The technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the structure and the core concept of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (4)
1. A pressure relief protection device for an ion membrane electrolytic cell is characterized by comprising a positive pressure water seal (2), a negative pressure water seal (3) and a communicating pipe (9) for connecting the positive pressure water seal and the negative pressure water seal; the tops of inlet pipelines of the positive pressure water seal (2) and the negative pressure water seal (3) are both connected with an anode side chlorine gas main pipe (1) of the ion membrane electrolytic cell, and an inlet of the negative pressure water seal (3) is positioned at one side close to the ion membrane electrolytic cell; the bottom of an inlet pipeline of the positive pressure water seal (2) is inserted below the liquid level, the bottom of an outlet pipeline is positioned above the liquid level, and the top of the outlet pipeline is communicated with the outside for discharging chlorine gas, and the bottom of the inlet pipeline of the negative pressure water seal (3) is positioned above the liquid level, the bottom of the outlet pipeline is inserted below the liquid level, and the top of the inlet pipeline is communicated with the outside for supplying air.
2. The apparatus according to claim 1, characterized in that the outlet line of the positive pressure water seal (2) is open at the top to the outside and is connected to the waste gas absorption tower (6).
3. The device according to claim 1, characterized in that the positive pressure water seal (2) is provided with a water feeding pipe (8), and the negative pressure water seal (3) is provided with an overflow pipe (10).
4. A device according to claim 3, characterized in that the water-feeding pipe (8) is provided with a water-replenishing valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021959511.3U CN213113539U (en) | 2020-09-09 | 2020-09-09 | Pressure relief protection device for ion-exchange membrane electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021959511.3U CN213113539U (en) | 2020-09-09 | 2020-09-09 | Pressure relief protection device for ion-exchange membrane electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213113539U true CN213113539U (en) | 2021-05-04 |
Family
ID=75661553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021959511.3U Active CN213113539U (en) | 2020-09-09 | 2020-09-09 | Pressure relief protection device for ion-exchange membrane electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213113539U (en) |
-
2020
- 2020-09-09 CN CN202021959511.3U patent/CN213113539U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11162181B2 (en) | Hydrogen production apparatus and hydrogen production system | |
| US8557090B2 (en) | High-pressure electrolysis installation and process for inertising an installation of this type | |
| CN206806471U (en) | A kind of aluminium air-fuel battery and electrolyte management system | |
| WO2012027925A1 (en) | Polymer type hydrogen fuel cell having hydrogen generation device and control system | |
| CN112899712A (en) | Water electrolysis hydrogen production device and hydrogen production method | |
| CN204527588U (en) | A kind of underwater breathing apparatus | |
| CN105862066A (en) | High-pressure proton membrane water electrolysis device and method | |
| CN103066238B (en) | High-efficiency acid discharge system of storage battery | |
| CN108598529B (en) | Pressure balancing device for positive and negative electrode systems of all-vanadium redox flow battery | |
| CN213113539U (en) | Pressure relief protection device for ion-exchange membrane electrolytic cell | |
| CN209412330U (en) | A kind of hydrogen safe draining device | |
| CN110364754A (en) | The over-pressure safety device and control method of fuel cell | |
| JP4052426B2 (en) | Gas generator | |
| JP6438741B2 (en) | Electrical insulation method for electrolysis system | |
| CN216107236U (en) | Full-immersion type vertical unit water electrolysis hydrogen production system | |
| US20190260056A1 (en) | Regenerative fuel cell system and water electrolysis system | |
| CN203039017U (en) | Accumulator efficient acid discharge system | |
| CN215628319U (en) | Hydrogen-oxygen balance pressurization system for water electrolysis device | |
| CN113755856A (en) | Full-immersion type vertical unit water electrolysis hydrogen production system and use method thereof | |
| CN214428663U (en) | Non-leakage pile box with internal hydrogen elimination structure for metal-air battery | |
| CN108486600A (en) | High-purity hydrogen gas generating system | |
| CN114678572A (en) | Distributed hydrogen production energy storage power generation system and working method thereof | |
| CN104716293B (en) | A kind of metal-air batteries electrolyte managing device and its application | |
| CN208362478U (en) | High-purity hydrogen gas generating system | |
| CN216120397U (en) | Flow battery system with pressure supplement before pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220525 Address after: 737100 No.1 Lanzhou Road, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Chemical New Materials Co.,Ltd. Address before: 737100 Beijing Road, Jinchang City, Gansu Province Patentee before: JINCHUAN GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |