CN217628643U - Electrolyte circulation system and water electrolysis hydrogen production system - Google Patents
Electrolyte circulation system and water electrolysis hydrogen production system Download PDFInfo
- Publication number
- CN217628643U CN217628643U CN202221074075.0U CN202221074075U CN217628643U CN 217628643 U CN217628643 U CN 217628643U CN 202221074075 U CN202221074075 U CN 202221074075U CN 217628643 U CN217628643 U CN 217628643U
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- electrolyte circulation
- heating
- storage device
- liquid
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses an electrolyte circulation system and an electrolytic water hydrogen production system, which comprises an electrolyte circulation pipeline, a liquid storage device, a bypass pipeline and a heating device, wherein the liquid storage device is connected in series with the electrolyte circulation pipeline and can store electrolyte; the bypass pipeline is arranged on the electrolyte circulation pipeline and is used for bypassing the liquid inlet side and the liquid outlet side of the liquid storage device; the heating device comprises a first heating assembly which is arranged on the liquid storage device and used for conducting heat transfer and heating on electrolyte in the liquid storage device. The electrolyte is circularly heated by the electrolyte circulating system until the electrolyte in the whole water electrolysis hydrogen production system reaches the required temperature, so that the time of the heat engine can be effectively shortened, the occupation ratio of unqualified hydrogen emptying can be reduced, and the energy waste is reduced.
Description
Technical Field
The utility model relates to an electrolytic water hydrogen manufacturing technical field, more specifically say, relate to an electrolyte circulation system and electrolytic water hydrogen manufacturing system.
Background
Common water electrolysis hydrogen production devices in the current market are mainly divided into an alkaline water hydrogen production device and a pure water hydrogen production device, based on the working principle of the current hydrogen production device, no matter the pure water hydrogen production device or the alkaline water hydrogen production device, under a cold start state, the heat engine is generally required to be heated to 60 ℃ to ensure that available hydrogen can be produced, the heat engine time is different according to the specification of the gas production amount, the consumed time is different, the consumed time is generally required to be 1-2 hours or even longer, the purity of the produced hydrogen and oxygen is not up to the standard during the period, and only the hydrogen and oxygen can be discharged to cause the waste of electric energy. For a new energy hydrogen production system which is periodic based on solar energy, wind energy and the like, frequent starting and stopping belong to conventional working conditions, the preheating time of the starting is shortened, and the proportion of unqualified hydrogen emptying is reduced.
In conclusion, how to solve the problem of energy waste caused by long heat engine time of the water electrolysis hydrogen production system in a cold start state becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electrolyte circulation system and brineelectrolysis hydrogen manufacturing system to solve the cold system of brineelectrolysis hydrogen manufacturing and lead to the extravagant problem of the energy long time of heat engine under the starting condition.
In order to achieve the above object, the utility model provides a following technical scheme:
an electrolyte circulating system is applied to a water electrolysis hydrogen production system and comprises:
an electrolyte circulation line;
the liquid storage device is connected to the electrolyte circulation pipeline in series and can store electrolyte;
the bypass pipeline is arranged on the electrolyte circulating pipeline and is used for bypassing the liquid inlet side and the liquid outlet side of the liquid storage device;
the heating device comprises a first heating assembly which is arranged on the liquid storage device and used for conducting heat transfer heating on electrolyte in the liquid storage device.
Optionally, the electrolyte circulation pipeline positioned on the liquid inlet side of the liquid storage device is connected with the bypass pipeline through a three-way valve; and/or the electrolyte circulation pipeline positioned at the liquid outlet side of the liquid storage device is connected with the bypass pipeline through a three-way valve.
Optionally, the first heating component is disposed on an outer surface of the liquid storage device or disposed inside the liquid storage device.
Optionally, when the first heating assembly is disposed on the outer surface of the liquid storage device, the first heating assembly includes a first heating coil that is coiled around the outer wall of the liquid storage device and a first heat preservation layer that covers the periphery of the first heating coil.
Optionally, the system further comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used for detecting the temperature of the electrolyte in the gas-liquid separator of the water electrolysis hydrogen production system; the second temperature sensor is used for detecting the temperature of the electrolyte in the liquid storage device.
Optionally, the heating device further comprises a second heating assembly arranged on the outer wall surface of the gas-liquid separator of the water electrolysis hydrogen production system and used for heating the electrolyte in the gas-liquid separator.
Optionally, the second heating assembly comprises a second heating coil and a second heat insulation layer, the second heating coil is coiled on the outer wall surface of the gas-liquid separator, and the second heat insulation layer covers the periphery of the second heating coil.
Optionally, the heating device further includes a third heating assembly disposed on an outer wall of the electrolyte circulation pipeline for heating the electrolyte flowing through the electrolyte circulation pipeline.
Optionally, the system further comprises a liquid supplementing pipeline connected with a gas-liquid separator of the water electrolysis hydrogen production system, wherein the gas-liquid separator comprises a hydrogen gas-liquid separator and an oxygen gas-liquid separator which are both communicated with the liquid supplementing pipeline.
Optionally, at least two electrolyte circulation pumps arranged in parallel are arranged on the electrolyte circulation pipeline.
Compared with the introduction content of the background technology, the electrolyte circulating system is applied to a water electrolysis hydrogen production system and comprises an electrolyte circulating pipeline, a liquid storage device, a bypass pipeline and a heating device, wherein the liquid storage device is connected to the electrolyte circulating pipeline in series and can store electrolyte; the bypass pipeline is arranged on the electrolyte circulation pipeline and is used for bypassing the liquid inlet side and the liquid outlet side of the liquid storage device; the heating device comprises a first heating assembly which is arranged on the liquid storage device and used for conducting heat transfer heating on electrolyte in the liquid storage device. This electrolyte circulation system, in the practical application in-process, when electrolytic water hydrogen production system is in cold start-up state, can heat the electrolyte in the stock solution device through the first heating element who opens heating device, close the bypass pipeline in the time, under the effect of electrolyte circulating pump on electrolyte circulating pipeline, electrolyte that is heated and preheated in the stock solution device can flow to the electrolysis trough of electrolytic water hydrogen production system, electrolyte in the gas-liquid separator among the electrolytic water hydrogen production system can constantly mend stock solution device simultaneously, through above-mentioned electrolyte circulation system to electrolyte circulation heating until electrolyte reaches the preheating operation of required temperature in the whole electrolytic water hydrogen production system, can effectively shorten the heat engine for a long time, also can reduce the proportion of unqualified hydrogen unloading, thereby reduce the energy waste.
In addition, the utility model also provides an electrolytic water hydrogen manufacturing system, including electrolyte circulation system, and this electrolyte circulation system is the electrolyte circulation system that any above-mentioned scheme described. Because the electrolyte circulating system has the technical effects, the water electrolysis hydrogen production system with the electrolyte circulating system also has the corresponding technical effects, and the details are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electrolyte circulation system according to an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of a heating device correspondingly disposed on an electrolyte circulation system according to an embodiment of the present invention.
Wherein, in fig. 1 and 2:
Detailed Description
The core of the utility model is to provide an electrolyte circulation system and water electrolysis hydrogen manufacturing system to solve the cold system of water electrolysis hydrogen manufacturing and lead to the extravagant problem of the energy long time of heat engine under the starting condition.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, wherein fig. 1 is a schematic structural principle diagram of an electrolyte circulation system provided in an embodiment of the present invention; fig. 2 is a schematic view of a partial structure of a heating device correspondingly arranged on an electrolyte circulation system according to an embodiment of the present invention.
The embodiment of the utility model provides an electrolyte circulation system, which is applied to a hydrogen production system by electrolyzing water, and comprises an electrolyte circulation pipeline 1, a liquid storage device 10, a bypass pipeline 3 and a heating device, wherein the liquid storage device 10 is connected in series on the electrolyte circulation pipeline 1 and can store electrolyte; the bypass pipeline 3 is arranged on the electrolyte circulating pipeline 1 and is used for bypassing the liquid inlet side and the liquid outlet side of the liquid storage device 10; the heating device comprises a first heating assembly 2 which is arranged in the liquid storage device 10 and used for conducting heat transfer heating on electrolyte in the liquid storage device 10.
It should be noted that, as will be understood by those skilled in the art, one end of the electrolyte circulation pipeline 1 is communicated with the gas-liquid separator of the water electrolysis hydrogen production system, the other end of the electrolyte circulation pipeline 1 is communicated with the electrolytic cell 6 of the water electrolysis hydrogen production system, and the electrolyte circulation pipeline 1 should be further provided with an electrolyte circulation pump 7, where the electrolyte circulation pump 7 provides power for the electrolyte to flow from the gas-liquid separator to the electrolytic cell 6.
This electrolyte circulation system, in the practical application in-process, when electrolytic water hydrogen manufacturing system is in the cold start state, can heat the electrolyte in the liquid storage device through opening heating device's first heating element 2, close bypass pipeline 3 when that, under electrolyte circulating pump 7's effect on electrolyte circulation pipeline 1, electrolyte that is heated and preheated in the liquid storage device 10 can flow to electrolytic water hydrogen manufacturing system in electrolysis trough 6, electrolyte in the gas-liquid separator among the electrolytic water hydrogen manufacturing system can constantly supply liquid storage device 10 simultaneously, through above-mentioned electrolyte circulation system to electrolyte circulation heating until whole electrolytic water hydrogen manufacturing system in electrolyte reaches the preheating operation of required temperature, can effectively shorten the length of time of heat engine, also can reduce the proportion of unqualified hydrogen unloading, thereby it is extravagant to reduce the energy.
Specifically, the preheating operation mode of heating the electrolyte by the electrolyte circulating system can be specifically preheating to the required temperature in advance before starting up and then starting up; or in the process of heat engine, the electrolyte circulating system continuously circulates to heat and preheat the electrolyte. In the practical application process, the corresponding preheating operation mode can be selected according to the practical situation.
Taking preheating to the required temperature before starting up and then starting up as an example, the specific working process is as follows:
when the first heating assembly 2 is started to heat the liquid storage device 10, and the temperature of electrolyte in the liquid storage device 10 rises, the electrolyte circulating pump 7 is started to take away hot electrolyte, cold electrolyte enters the liquid storage device 10 again, the process is repeated until the temperature of the electrolyte at the gas-liquid separator meets the starting requirement, the starting operation is carried out again, and when the starting operation is carried out formally, the electrolyte circulating pipeline is cut out from the liquid storage device 10 and the first heating assembly 2 through the bypass pipeline 3, and the first heating assembly 2 is closed; because the electrolytic cell 6 is not started up in the whole heating and preheating process, the system can be designed according to the design principle of a cooling liquid circulating system, namely the liquid storage device 10 is designed according to the requirement of a low-pressure container, and the cost is reduced.
Take the example that electrolyte circulation system preheats electrolyte among the heat engine process, when electrolytic water hydrogen production system is in the cold start-up state, can heat the electrolyte in stock solution device 10 through opening heating device's first heating element 2, close bypass pipeline 3 in the time, under the effect of electrolyte circulating pump 7 on electrolyte circulation pipeline 1, the electrolyte that is preheated in stock solution device 10 can flow to electrolytic water hydrogen production system's electrolysis trough 6 in, electrolyte in the gas-liquid separator among the electrolytic water hydrogen production system can constantly supply stock solution device 10 simultaneously, can continuously circulate in the heat engine process heat the preheating to electrolyte, thereby can effectively shorten the heat engine duration, also can reduce the occupation ratio of unqualified hydrogen unloading, thereby reduce the energy waste, when electrolyte reaches the demand temperature in the electrolytic water hydrogen production system, also after the heat engine is accomplished, close first heating element 2 and open bypass pipeline 3 simultaneously, this moment electrolyte is also by bypass pipeline 3 directly from the feed liquor side bypass to the play liquid side of stock solution device 10, also be the bypass pipeline with first heating element 2, thereby when electrolytic water hydrogen production system normally operates and not influenced by first heating element 2.
It should be noted that, in order to ensure the normal operation of the water electrolysis hydrogen production system, the electrolyte circulation pipeline 1 may be generally provided with a cooling heat exchanger 9, and the temperature of the electrolyte which flows back to the electrolytic cell 6 in the hydrogen production process can be effectively prevented from being too high by the cooling heat exchanger 9.
In addition, in order to enable the bypass pipeline 3 to selectively bypass the liquid inlet side and the liquid outlet side of the liquid storage device 10, a first switching valve set may be disposed on the electrolyte circulation pipeline 1 and the bypass pipeline 3 located on the liquid inlet side of the liquid storage device 10, and the first switching valve set may be capable of switching and communicating the bypass pipeline 3 and the liquid storage device 10; electrolyte circulation pipeline 1 and bypass pipeline 3 that are located the play liquid side of liquid storage device 10 can be provided with the second and switch the valves, and this second switches the valves and can switch on bypass pipeline 3 and liquid storage device 10.
The first switching valve group and the second switching valve group can adopt a three-way valve 31; certainly, one of the first switching valve group and the second switching valve group may adopt a three-way valve 31, and the other valve group adopts another type, for example, the liquid inlet side and the liquid outlet side of the liquid storage device 10 are both provided with an on-off valve, the bypass pipeline 3 is connected to the upstream of the liquid inlet side and the downstream of the liquid outlet side, and the on-off valve is arranged on the bypass pipeline 3, so that the switching function can be realized; other types of valve banks can be adopted for the first switching valve bank and the second switching valve bank. In the practical application process, the corresponding valve group structure form can be selected and arranged according to the practical requirement, and no specific limitation is made herein.
It should be noted that the first heating element 2 may be specifically disposed on an outer surface of the liquid storage device 10, or may be disposed inside the liquid storage device 10. The actual application process can be selected according to actual requirements.
The utility model discloses preferably set up first heating element 2 in stock solution device 10's surface, specifically, first heating element 2 is including spiraling in the first heating coil 21 of stock solution device 10's outer wall and covering in the first heating coil 21's outlying first heat preservation 22. The first heating coil 21 may be an electric heating coil, and other heating coils commonly used by those skilled in the art may also be used, such as a water heating coil.
By designing the first heating assembly 2 into the above structural form, on one hand, the first heating coil 21 can ensure that the liquid storage device 10 is heated up quickly and transfers heat to the electrolyte in the liquid storage device 10, so as to realize quick preheating of the electrolyte; on the other hand, the first heat preservation layer 22 can effectively reduce the heat loss of the first heating coil 21, which is beneficial to reducing the energy consumption; in addition, because the first heating assembly 2 is designed on the outer surface of the liquid storage device 10, the first heating assembly can not contact with the electrolyte in the liquid storage device 10, and therefore the purity of the electrolyte can not be affected.
It should be noted that, the material of the liquid storage device 10 is selected to meet the requirements of not reacting with the electrolyte, not being corroded by the electrolyte, resisting high temperature, and the like, and specifically, the material may be stainless steel or other high temperature-resistant non-metal materials, wherein the non-metal materials have better effect because the purity of the electrolyte is less likely to be affected. In addition, when the first heating element 2 is disposed inside the liquid storage device 10, the outer surface of the first heating element 2 contacting the electrolyte also needs to meet the requirements of no reaction with the electrolyte, no corrosion by the electrolyte, high temperature resistance, and the like.
In some specific embodiments, the electrolyte circulation system may further include a first temperature sensor 101 and a second temperature sensor 40, where the first temperature sensor 101 is configured to detect the temperature of the electrolyte in the gas-liquid separator of the hydrogen production system from electrolyzed water; the second temperature sensor 40 is used for detecting the temperature of the electrolyte in the liquid storage device 10. Specifically, the first temperature sensor 101 and the second temperature sensor 40 may both adopt remote thermometers, and may also adopt other types of temperature sensors commonly used by those skilled in the art, which are not limited herein in more detail.
Based on the working principle of the water electrolysis hydrogen production system, the ratio of the electrolyte in the electrolytic tank 6, the hydrogen gas-liquid separator 41 and the oxygen gas-liquid separator 42 is much higher than the ratio of the electrolyte circulation pipeline 1 and the heat exchanger, so that whether the temperature required by the heat engine is reached or not is determined to be more in accordance with the actual requirement by comparing the temperature of the electrolyte in the liquid storage device 10 detected by the second temperature sensor 40 with the temperature of the electrolyte in the gas-liquid separator (i.e., the hydrogen gas-liquid separator 41 and/or the oxygen gas-liquid separator 42) detected by the first temperature sensor 101.
In some specific embodiments, in the electrolyte circulation system, the heating device may further include a second heating component disposed on an outer wall surface of the gas-liquid separator of the water electrolysis hydrogen production system for heating the electrolyte in the gas-liquid separator. Through designing second heating element, can add one more device to electrolyte heating and preheating, can make the electrolyte in the electrolyte circulation system more fast reach the required temperature of heat engine then.
In a further embodiment, the second heating assembly may specifically include a second heating coil and a second insulating layer, where the second heating coil is coiled around the outer wall surface of the gas-liquid separator, and the second insulating layer covers the periphery of the second heating coil. The second heating assembly is designed into the structural form, on one hand, the gas-liquid separator can be heated and heat-transferred through the second heating coil, so that the electrolyte in the gas-liquid separator can quickly reach the required temperature of the heat engine; on the other hand, the heat loss of second heating coil can also be prevented through the design second heat preservation, helps reducing the energy consumption. It is understood that the second heating assembly is designed as a heating coil, and is merely an example of the embodiment of the present invention, and other heating structures commonly used by those skilled in the art may be used in practice, and are not limited thereto.
In other specific embodiments, the heating device may further include a third heating element disposed on the outer wall of the electrolyte circulation pipeline 1, wherein the third heating element is configured to heat the electrolyte flowing through the electrolyte circulation pipeline 1. Through the design of the third heating assembly, the speed of the heat engine can be increased, and the time required by the heat engine is further reduced. It should be noted that the specific structural form of the third heating assembly may be an electric heater, such as an electric heating coil, or a liquid circulation heater, such as a water circulation heating pipe, or other heating structures commonly used by those skilled in the art, and in the practical application process, the specific structural form may be selected according to the practical requirements, and is not limited in more detail herein.
In some more specific embodiments, the electrolyte circulation system may further include a liquid replenishing pipeline 5 connected to a gas-liquid separator of the water electrolysis hydrogen production system, where the gas-liquid separator includes a hydrogen gas-liquid separator 41 and an oxygen gas-liquid separator 42 both communicated with the liquid replenishing pipeline 5. Through designing fluid infusion pipeline 5 in this position, before the start or when carrying out the electrolyte fluid infusion in the heat engine in-process, can heat the electrolyte of mending through stock solution device 10 and the heating device among the electrolyte circulation system and preheat, guarantee the preheating temperature of electrolyte.
In a further embodiment, in order to ensure the purity of the electrolyte flowing from the electrolyte circulation line 1 into the electrolytic bath 6, the electrolyte circulation line 1 may also be provided with a filter device 8.
It should be understood by those skilled in the art that the circulation flow of the electrolyte in the electrolyte circulation line 1 necessarily requires a power source, and thus the electrolyte circulation line 1 should have the electrolyte circulation pump 7. In the embodiment of the utility model provides an in, preferably set up electrolyte circulation pump 7 of two at least parallelly connected arrangements with electrolyte circulation pipeline 1. By designing at least two electrolyte circulating pumps 7, on one hand, when the power required by the electrolyte circulation is large, a plurality of electrolyte circulating pumps 7 can be started simultaneously to meet the high-power requirement, and when the power required by the electrolyte circulation is low, one or a few electrolyte circulating pumps 7 can be selected to be started to meet the required power; on the other hand, when one electrolyte circulating pump 7 is damaged, the normal operation of the whole system is not influenced; in addition, can design into partial electrolyte circulating pump 7 among a plurality of electrolyte circulating pumps 7 and be arranged in providing the required power of electrolyte circulation when the normal start-up operation of electrolytic water hydrogen production system is worked, and another part provides the required power of electrolyte circulation when being arranged in electrolyte circulation system stock solution device 10 and heating device access electrolyte circulation pipeline 1 and carry out the electrolyte and preheat. The arrangement can realize the independent control of the starting of the water electrolysis hydrogen production system and the preheating operation of the electrolyte by the electrolyte circulating system.
In addition, the utility model also provides an electrolytic water hydrogen manufacturing system, including electrolyte circulation system, and this electrolyte circulation system is the electrolyte circulation system that any above-mentioned scheme described. Because the electrolyte circulating system has the technical effects, the water electrolysis hydrogen production system with the electrolyte circulating system also has the corresponding technical effects, and the details are not repeated herein.
In addition, each embodiment in the present specification is described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should be understood that the use of "system," "device," "unit," and/or "module" herein is merely one way to distinguish between different components, elements, components, parts, or assemblies of different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" are intended to cover only the explicitly identified steps or elements as not constituting an exclusive list and that the method or apparatus may comprise further steps or elements. An element defined by the phrase "comprising one of \ 8230: \ 8230:" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.
In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
If used in this application, the flowcharts are intended to illustrate operations performed by the system according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.
The principle and the implementation of the present invention are explained by applying a specific embodiment, and the description of the above embodiment is only used to help understand the core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (11)
1. An electrolyte circulating system is applied to a water electrolysis hydrogen production system and is characterized by comprising:
an electrolyte circulation line (1);
the liquid storage device (10) is connected to the electrolyte circulation pipeline (1) in series and can store electrolyte;
the bypass pipeline (3) is arranged on the electrolyte circulating pipeline (1) and is used for bypassing the liquid inlet side and the liquid outlet side of the liquid storage device (10);
the heating device comprises a first heating assembly (2) which is arranged on the liquid storage device (10) and used for conducting heat transfer heating on electrolyte in the liquid storage device (10).
2. The electrolyte circulation system according to claim 1, characterized in that the electrolyte circulation line (1) on the inlet side of the reservoir (10) is connected to the bypass line (3) by a three-way valve (31); and/or the electrolyte circulation pipeline (1) positioned on the liquid outlet side of the liquid storage device (10) is connected with the bypass pipeline (3) through a three-way valve (31).
3. The electrolyte circulation system of claim 1, wherein the first heating element (2) is disposed on an outer surface of the reservoir (10) or is disposed inside the reservoir (10).
4. The electrolyte circulation system according to claim 3, wherein when the first heating assembly (2) is disposed on the outer surface of the reservoir (10), the first heating assembly (2) comprises a first heating coil (21) coiled on the outer wall surface of the reservoir (10) and a first heat-insulating layer (22) covering the periphery of the first heating coil (21).
5. The electrolyte circulation system according to claim 1, further comprising a first temperature sensor (101) and a second temperature sensor (40), wherein the first temperature sensor (101) is used for detecting the temperature of the electrolyte in the gas-liquid separator of the water electrolysis hydrogen production system; the second temperature sensor (40) is used for detecting the temperature of the electrolyte in the liquid storage device (10).
6. The electrolyte circulation system as claimed in claim 1, wherein the heating device further comprises a second heating component arranged on the outer wall surface of the gas-liquid separator of the water electrolysis hydrogen production system for heating the electrolyte in the gas-liquid separator.
7. The electrolyte circulation system of claim 6, wherein the second heating element comprises a second heating coil coiled around the outer wall of the gas-liquid separator and a second insulating layer covering the periphery of the second heating coil.
8. The electrolyte circulation system according to claim 1, wherein the heating device further comprises a third heating element arranged on an outer pipe wall of the electrolyte circulation line (1) for heating the electrolyte flowing through the electrolyte circulation line (1).
9. The electrolyte circulation system according to any one of claims 1 to 8, further comprising a liquid replenishing pipeline (5) connected to a gas-liquid separator of the water electrolysis hydrogen production system, wherein the gas-liquid separator comprises a hydrogen gas-liquid separator (41) and an oxygen gas-liquid separator (42) both communicating with the liquid replenishing pipeline (5).
10. Electrolyte circulation system according to one of claims 1 to 8, characterized in that at least two electrolyte circulation pumps (7) arranged in parallel are arranged on the electrolyte circulation line (1).
11. A system for producing hydrogen by electrolyzing water, comprising an electrolyte circulation system, wherein the electrolyte circulation system is the electrolyte circulation system according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074075.0U CN217628643U (en) | 2022-05-06 | 2022-05-06 | Electrolyte circulation system and water electrolysis hydrogen production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074075.0U CN217628643U (en) | 2022-05-06 | 2022-05-06 | Electrolyte circulation system and water electrolysis hydrogen production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217628643U true CN217628643U (en) | 2022-10-21 |
Family
ID=83650746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221074075.0U Active CN217628643U (en) | 2022-05-06 | 2022-05-06 | Electrolyte circulation system and water electrolysis hydrogen production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217628643U (en) |
-
2022
- 2022-05-06 CN CN202221074075.0U patent/CN217628643U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4246768B2 (en) | Fuel cell system | |
| CN109244505A (en) | A kind of vehicle fuel battery heat management system and its control method | |
| CN217628643U (en) | Electrolyte circulation system and water electrolysis hydrogen production system | |
| CN210296513U (en) | Heat exchange system of flow battery | |
| CN203546148U (en) | On-line temperature control system for acid-pickling solution | |
| CN103000922A (en) | Electrolyte storage tank integrated with heat exchange function and control method thereof | |
| CN106887616B (en) | Fuel cell cold start system and method based on liquid organic hydrogen storage | |
| CN102110827A (en) | Thermal management method for high temperature proton exchange membrane fuel cell system | |
| JP2924671B2 (en) | Water treatment system for fuel cell power plant | |
| CN216393810U (en) | Step-by-step heating non-pressure-bearing lower heat exchange cold boiled water constant temperature water dispenser | |
| CN214148132U (en) | Pipeline heat accumulating type air source heat pump secondary heating hot water system | |
| CN211011612U (en) | Commercial hot water heat-storage energy-saving environment-friendly system | |
| CN114335601A (en) | Fuel cell cooling system and cooling method for energy storage power station | |
| JP6952248B2 (en) | Fuel cell system | |
| CN110567286A (en) | High-temperature steam waste heat recycling device based on lead plaster smelting | |
| CN220116693U (en) | Water tank and water electrolysis hydrogen production system | |
| CN218951511U (en) | Hydrogen production device combined with photo-thermal device | |
| CN217438313U (en) | Hot standby electrolytic tank | |
| US4083759A (en) | Method for reducing sludge formation in the continuous production of iron by electrolysis of ferrous electrolyte | |
| CN218379591U (en) | Hot water supply system | |
| CN216923992U (en) | Liquid carbon dioxide gasification device | |
| CN218059265U (en) | Sealing mechanism for crystallizer copper pipe internal circulation electroplating and electroplating device | |
| CN219371108U (en) | Automatic cooling system for lead-acid storage battery internal formation | |
| CN216574403U (en) | Equipment for reducing conductivity through high-temperature washing | |
| CN211526405U (en) | Heat treatment device of flue gas waste heat recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |