CN218321669U - Water electrolysis device and electrochemical booster - Google Patents
Water electrolysis device and electrochemical booster Download PDFInfo
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- CN218321669U CN218321669U CN202222724169.4U CN202222724169U CN218321669U CN 218321669 U CN218321669 U CN 218321669U CN 202222724169 U CN202222724169 U CN 202222724169U CN 218321669 U CN218321669 U CN 218321669U
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- 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
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Abstract
The utility model provides a water electrolysis device and electrochemistry booster unit has good and even radiating effect. A water electrolysis apparatus includes: a water electrolysis unit including a plurality of unit cells stacked one on another, each unit cell including an anode, a cathode, and an electrolyte membrane, the anode and the cathode being respectively disposed at both sides of the electrolyte membrane; a power supply for causing an electric current to flow between the anode and the cathode to electrolyze water at the cathode and generate oxygen at the anode; a plurality of water passages passing through the unit cells, respectively, to supply water to and discharge water from the unit cells, respectively; and a plurality of adjustment mechanisms for respectively adjusting the flow rates of water flowing through the unit cells, the adjustment mechanisms including: a first regulating mechanism that causes water to flow at a first flow rate to one of the unit cells that is located at a central portion of the water electrolysis unit; and a second regulating mechanism that causes the water to flow to one of the unit cells located at an outer portion of the water electrolysis unit at a second flow rate that is smaller than the first flow rate.
Description
Technical Field
The utility model relates to a water electrochemical device especially relates to a water electrolysis device and electrochemistry device that steps up.
Background
In recent years, research and development have been conducted on a differential pressure type electrochemical boosting battery that contributes to the efficiency of energy in order to ensure reliable, sustainable, and advanced access to energy that is affordable to more people. However, in the technology related to the differential pressure type electrochemical boosting battery, heat is generated when the electrochemical boosting battery performs a chemical reaction, and the unit cells located at the central portion are likely to accumulate heat and to be heated greatly, so that the unit cells at the central portion are likely to be overheated due to insufficient heat dissipation. Therefore, improvements in electrochemical boosting cells are needed to overcome the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water electrolysis device and electrochemistry booster unit has good and even radiating effect.
The utility model provides a water electrolysis device, include: a water electrolysis unit including a plurality of unit cells stacked on one another, wherein each of the plurality of unit cells includes an anode, a cathode, and an electrolyte membrane, and the anode and the cathode are respectively disposed at both sides of the electrolyte membrane; a power supply that causes an electric current to flow between the anode and the cathode to electrolyze water at the cathode and generate oxygen at the anode; a plurality of water passages passing through the plurality of unit cells, respectively, to supply water to the plurality of unit cells, respectively, and to discharge water from the plurality of unit cells; and a plurality of adjustment mechanisms that respectively adjust flow rates of water flowing through the plurality of unit cells, wherein the plurality of adjustment mechanisms include: a first adjustment mechanism that causes water to flow at a first flow rate to one of the plurality of unit cells that is located at a central portion of the water electrolysis unit; and a second adjustment mechanism that causes water to flow to one of the plurality of unit cells located at an outer portion of the water electrolysis unit at a second flow rate that is smaller than the first flow rate.
The utility model provides an electrochemistry pressure boosting device, include: an electrochemical unit including a plurality of unit cells stacked on one another, wherein each of the plurality of unit cells includes an anode, a cathode, and an electrolyte membrane, the anode and the cathode being respectively disposed at both sides of the electrolyte membrane; a power supply that flows an electric current between the anode and the cathode to move hydrogen supplied to the anode to the cathode and generate hydrogen at the cathode at a pressure higher than that of the hydrogen supplied to the anode; a plurality of refrigerant passages passing through the plurality of unit batteries, respectively, to supply and discharge refrigerant to and from the plurality of unit batteries, respectively; and a plurality of adjustment mechanisms that respectively adjust flow rates of the refrigerant flowing through the plurality of unit cells, wherein the plurality of adjustment mechanisms include: a first regulation mechanism that flows a refrigerant to one of the plurality of unit cells at a first flow rate, the one being located at a central portion of the electrochemical cell; and a second regulating mechanism that causes the refrigerant to flow to one of the plurality of unit cells located at an outer portion of the electrochemical cell at a second flow rate that is less than the first flow rate.
In an embodiment of the present invention, each of the plurality of adjustment mechanisms has a spring portion that expands or contracts with a change in pressure of water/refrigerant flowing through the water passage/refrigerant passage, and a spring constant of the spring portion of the first adjustment mechanism is smaller than a spring constant of the spring portion of the second adjustment mechanism.
In an embodiment of the invention, the spring portion closer to the central portion has a smaller spring constant.
In view of the above, in the water electrolysis apparatus and the electrochemical voltage boosting apparatus of the present invention, the flow rate of the water/refrigerant passing through the unit cells is adjusted by the adjusting mechanism, so that the unit cells located in the central portion are cooled by the water/refrigerant having a large flow rate. Thus, the water electrolysis device and the electrochemical booster device of the present invention have good and uniform heat dissipation effect, and can prevent the unit cell located in the central portion from overheating.
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic view of a water electrolysis apparatus according to an embodiment of the present invention;
fig. 2 is a sectional view schematically illustrating a partial structure of the unit cell of fig. 1;
fig. 3 is a schematic top view of a partial structure of the unit cell of fig. 2;
fig. 4 is a schematic diagram of a partial structure of the water electrolysis apparatus of fig. 1.
Description of reference numerals:
100: a water electrolysis device;
110: a water electrolysis unit;
1101: a central portion;
1102: an outer portion;
112: a unit cell;
1121: an anode;
1122: a cathode;
1123: an electrolyte membrane;
120: a power source;
130: a water passage;
132: a step portion;
140A: a first adjustment mechanism;
140B: a second adjustment mechanism;
140C: a third adjustment mechanism;
140D: a fourth adjustment mechanism;
142: a spring portion;
144: an adjustment assembly;
c: water;
r: an area;
x, Y, Z: and (4) axial direction.
Detailed Description
Fig. 1 is a schematic view of a water electrolysis apparatus according to an embodiment of the present invention, showing an axial direction X, Y, Z. Fig. 2 is a schematic sectional view of a partial structure of the unit cell of fig. 1. Fig. 3 is a schematic top view of a partial structure of the unit cell of fig. 2. Referring to fig. 1 to fig. 3, a water electrolysis apparatus 100 (which may also be regarded as an electrochemical boosting apparatus) of the present embodiment is, for example, a partial structure of a differential pressure type electrochemical boosting battery, and includes a water electrolysis unit 110 (which may also be regarded as an electrochemical unit), a power source 120, and a plurality of water channels 130 (which may also be regarded as refrigerant channels).
The water electrolysis unit 110 includes a plurality of unit cells 112 stacked on each other, each unit cell 112 includes an anode 1121, a cathode 1122, and an electrolyte membrane 1123, and the anode 1121 and the cathode 1122 are respectively disposed on both sides of the electrolyte membrane 1123. The power supply 120 flows an electric current between the anode 1121 and the cathode 1122 to electrolyze the water of the cathode 1121, move the hydrogen gas supplied to the anode 1121 to the cathode 1122, and generate hydrogen gas at the cathode 1122 at a pressure higher than that of the hydrogen gas supplied to the anode 1121. The detailed electrochemical action principle of the differential pressure type electrochemical boosting battery is known in the art and is not described in detail herein. On the other hand, the water passages 130 pass through the plurality of unit cells 112, respectively, to supply water (refrigerant) C to the plurality of unit cells 112, respectively, and discharge the water C from the plurality of unit cells 112, thereby dissipating heat from each of the unit cells 112.
Fig. 4 is a schematic view of a partial structure of the water electrolysis apparatus of fig. 1, which corresponds to a region R of fig. 1. Referring to fig. 4, the water electrolysis apparatus 100 of the present embodiment further includes a plurality of adjustment mechanisms (fig. 4 shows a first adjustment mechanism 140A, a second adjustment mechanism 140B, a third adjustment mechanism 140C, and a fourth adjustment mechanism 140D) that respectively adjust the flow rates of the water C flowing through the plurality of unit cells 112. These adjusting mechanisms are provided, for example, at downstream ends of the plurality of water passages 130, respectively, and adjust the flow rate of the water C in the water passages 130 depending on the positions of the water passages 130 in the water electrolysis unit 110.
For example, the first adjustment mechanism 140A corresponds to one of the plurality of unit cells 112 located at the central portion 1101 of the water electrolysis unit 110, and causes the water C to flow to the corresponding unit cell 112 at a first flow rate. Also, the second adjustment mechanism 140B corresponds to one of the plurality of unit cells 112 located at the outer portion 1102 of the water electrolysis unit 110, and causes the water C to flow to the corresponding one of the unit cells 112 at a second flow rate that is less than the first flow rate. Accordingly, the unit cells 112 located at the central portion 1101 can be radiated by a larger flow rate of water C. Thus, the water electrolysis apparatus 100 of the present embodiment has a good and uniform heat dissipation effect, and the unit cells 112 located in the central portion 1101 are prevented from overheating.
In detail, each adjusting mechanism of the present embodiment has a spring portion 142 and an adjusting assembly 144 as shown in fig. 4. The spring portion 142 is, for example, a compression spring, and the adjusting component 144 is, for example, a steel ball, and is pushed by the spring portion 142 toward the step portion 132 of the water channel 130. The water C flows toward the adjustment member 144 along the water passage 130 to push the adjustment member 144 away from the step portion 132 against the elastic force of the spring portion 142, so that the water C can flow through the gap between the step portion 132 and the adjustment member 144. The spring portion 142 expands or contracts according to a pressure change of the water C flowing through the water passage 130 to adjust the size of the gap between the step portion 132 and the adjustment member 144, thereby adjusting the flow rate of the water C. Accordingly, the spring constant of the spring portion 142 of the first adjustment mechanism 140A is smaller than the spring constant of the spring portion 142 of the second adjustment mechanism 140B, so that the spring portion 142 of the first adjustment mechanism 140A generates a larger compression amount when receiving the pressure of the water C, so that the gap between the step portion 132 and the adjustment assembly 144 is larger, and the water C can have a larger flow rate as described above.
Further, in the present embodiment, the spring portion 142 closer to the central portion 1101 has a smaller spring constant. That is, the spring portion 142 closer to the outer portion 1102 has a larger spring constant. For example, in the first adjustment mechanism 140A, the second adjustment mechanism 140B, the third adjustment mechanism 140C, and the fourth adjustment mechanism 140D, the spring constant of the spring portion 142 of the second adjustment mechanism 140B is the largest, the spring constant of the spring portion 142 of the third adjustment mechanism 140C is the largest, the spring constant of the spring portion 142 of the fourth adjustment mechanism 140D is the smallest, and the spring constant of the spring portion 142 of the first adjustment mechanism 140A is the smallest. Thus, the flow rate of the water C is larger closer to the central portion 1101. That is, the flow rate of the water C closer to the outer portion 1102 is smaller. Accordingly, in the case where the unit cells 112 closer to the central portion 1101 are more likely to accumulate heat, a uniform heat dissipation effect can be effectively imparted to the water electrolysis apparatus 100.
In the present embodiment, for example, an adjusting mechanism is disposed at the downstream end of each water channel 130, but the present invention is not limited thereto. In other embodiments, the adjustment mechanism may be provided only at a portion of the downstream end of the water passage 130. In addition, the present invention does not limit the form of the adjusting mechanism, and for example, the flow rate may be adjusted by changing the flow path sectional area of the downstream end of the water passage 130.
As described above, in the water electrolysis apparatus and the electrochemical booster of the present invention, the flow rate of the water/refrigerant passing through the unit cells is adjusted by the adjusting mechanism, so that the unit cells located in the central portion are radiated by the water/refrigerant having a large flow rate. Thus, the water electrolysis device and the electrochemical booster device of the present invention have good and uniform heat dissipation effects, and can prevent the unit cell located in the central portion from being overheated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the embodiments of the present invention, and the essence of the corresponding technical solutions is not disclosed.
Claims (6)
1. A water electrolysis apparatus, comprising:
a water electrolysis unit including a plurality of unit cells stacked on one another, wherein each of the plurality of unit cells includes an anode, a cathode, and an electrolyte membrane, and the anode and the cathode are respectively disposed at both sides of the electrolyte membrane;
a power supply that causes an electric current to flow between the anode and the cathode to electrolyze water at the cathode and generate oxygen at the anode;
a plurality of water passages passing through the plurality of unit cells, respectively, to supply water to the plurality of unit cells, respectively, and to discharge water from the plurality of unit cells, respectively; and
a plurality of adjustment mechanisms that respectively adjust flow rates of water flowing through the plurality of unit cells, wherein the plurality of adjustment mechanisms include:
a first adjustment mechanism that causes water to flow at a first flow rate to one of the plurality of unit cells that is located at a central portion of the water electrolysis unit; and
a second adjustment mechanism that causes water to flow to one of the plurality of unit cells that is located at an outer portion of the water electrolysis unit at a second flow rate that is less than the first flow rate.
2. The water electrolysis apparatus of claim 1,
each of the plurality of adjustment mechanisms has a spring portion that expands or contracts with a change in pressure of the water flowing through the water passage, and a spring constant of the spring portion of the first adjustment mechanism is smaller than a spring constant of the spring portion of the second adjustment mechanism.
3. The water electrolysis apparatus of claim 2,
the spring portion closer to the central portion has a smaller spring constant.
4. An electrochemical booster device, comprising:
an electrochemical unit including a plurality of unit cells stacked on one another, wherein each of the plurality of unit cells includes an anode, a cathode, and an electrolyte membrane, the anode and the cathode being respectively disposed at both sides of the electrolyte membrane;
a power supply that flows an electric current between the anode and the cathode to move hydrogen supplied to the anode to the cathode and generate hydrogen at the cathode at a pressure higher than that of the hydrogen supplied to the anode;
a plurality of refrigerant passages passing through the plurality of unit batteries, respectively, to supply and discharge refrigerant to and from the plurality of unit batteries, respectively; and
a plurality of adjustment mechanisms that respectively adjust flow rates of refrigerant flowing through the plurality of unit cells, wherein the plurality of adjustment mechanisms include:
a first regulation mechanism that flows a refrigerant to one of the plurality of unit cells at a central portion of the electrochemical unit at a first flow rate; and
a second regulating mechanism that causes the refrigerant to flow to one of the plurality of unit cells located at an outer portion of the electrochemical cell at a second flow rate that is less than the first flow rate.
5. An electrochemical booster device according to claim 4,
each of the plurality of adjustment mechanisms has a spring portion that expands or contracts with a change in pressure of refrigerant flowing through the refrigerant passage, and a spring constant of the spring portion of the first adjustment mechanism is smaller than a spring constant of the spring portion of the second adjustment mechanism.
6. An electrochemical booster device as claimed in claim 5,
the spring portion closer to the central portion has a smaller spring constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222724169.4U CN218321669U (en) | 2022-10-17 | 2022-10-17 | Water electrolysis device and electrochemical booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222724169.4U CN218321669U (en) | 2022-10-17 | 2022-10-17 | Water electrolysis device and electrochemical booster |
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| Publication Number | Publication Date |
|---|---|
| CN218321669U true CN218321669U (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222724169.4U Active CN218321669U (en) | 2022-10-17 | 2022-10-17 | Water electrolysis device and electrochemical booster |
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- 2022-10-17 CN CN202222724169.4U patent/CN218321669U/en active Active
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