CN219342307U - Electrochemical oxygen regulating device and refrigerator with same - Google Patents
Electrochemical oxygen regulating device and refrigerator with same Download PDFInfo
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- CN219342307U CN219342307U CN202320154276.XU CN202320154276U CN219342307U CN 219342307 U CN219342307 U CN 219342307U CN 202320154276 U CN202320154276 U CN 202320154276U CN 219342307 U CN219342307 U CN 219342307U
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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
Abstract
The utility model relates to an electrochemical oxygen regulating device and a refrigerator with the same. The electrochemical oxygen regulating device comprises: a reaction device configured to regulate oxygen in a preset space through an electrochemical reaction; and the exhaust device is communicated with the reaction device and is used for exhausting oxygen generated by the reaction device in the electrochemical reaction process. The exhaust device is provided with a vertical pipe section which is directly connected with the reaction device and extends vertically upwards, and the height of the vertical pipe section is positively correlated with the working current of the reaction device and/or the electrochemical reaction time length of the reaction device. When the current of the reaction device is larger or the electrochemical reaction time of the reaction device is longer, the discharged oxygen can more easily carry more electrolyte, at the moment, the vertical height of the vertical pipe section is prolonged, the ascending path of upward flowing of the oxygen and the electrolyte can be prolonged, the electrolyte can flow back downwards along the vertical pipe section conveniently, the electrolyte in the discharged oxygen is effectively recovered, and the environmental pollution is avoided.
Description
Technical Field
The utility model relates to fresh-keeping equipment, in particular to an electrochemical oxygen regulating device and a refrigerator with the same.
Background
For an electrochemical oxygen regulating device for regulating oxygen in a refrigerator through electrochemical reaction, a cathode electrode plate and an anode electrode plate are generally matched. Typically, the cathode and anode electrode plates are spaced apart within the electrochemical oxygen regulating device to produce a corresponding chemical reaction at the respective plate surfaces. The chemical reaction needs to be carried out in a liquid (e.g., an electrolyte) while gas is generated. During the reaction, the electrolyte is heated to evaporate due to the large amount of heat generated, which may cause a small amount of electrolyte vapor to be carried in the gas discharged from the reaction apparatus. However, most of the electrolytes are acidic or alkaline solutions, and are corrosive. If the gas generated by the reaction device is directly discharged to the air or other spaces without treatment, the air pollution may be caused, and the life and health may be endangered.
Disclosure of Invention
An object of the first aspect of the present utility model is to overcome at least one of the drawbacks of the prior art by providing an electrochemical oxygen regulating device capable of recovering an electrolyte and reducing air pollution.
Another object of the first aspect of the utility model is to simplify the structure of the electrochemical oxygen regulating device.
An object of a second aspect of the present utility model is to provide a refrigerator having the above-described electrochemical oxygen regulating apparatus.
According to a first aspect of the present utility model there is provided an electrochemical oxygen regulating device comprising:
a reaction device configured to regulate oxygen in a preset space through an electrochemical reaction;
an exhaust device in communication with the reaction device for exhausting oxygen generated by the reaction device during an electrochemical reaction; wherein the method comprises the steps of
The exhaust device is provided with a vertical pipe section which is directly connected with the reaction device and extends vertically upwards, and the height of the vertical pipe section is in positive correlation with the working current of the reaction device and/or the electrochemical reaction time length of the reaction device.
Optionally, under the condition that the working current of the reaction device is constant, the longer the electrochemical reaction time of the reaction device is, the higher the height of the vertical pipe section is; and is also provided with
Under the condition that the electrochemical reaction time of the reaction device is constant, the larger the working current of the reaction device is, the higher the height of the vertical pipe section is.
Optionally, the electrochemical oxygen regulating device further comprises:
and the liquid supplementing device is communicated with the reaction device to supplement liquid required by electrochemical reaction for the reaction device.
Optionally, the highest liquid level of the liquid replenishing device does not exceed the highest position of the reaction device.
Optionally, the reaction device comprises a cathode part and an anode part which are arranged at intervals, wherein the cathode part is configured to consume oxygen in a preset space through electrochemical reaction, and the anode part is configured to provide reactants for the cathode part and generate oxygen through electrochemical reaction; wherein the method comprises the steps of
The lowest liquid level of the liquid supplementing device is not lower than 90% of the height of the cathode part.
Optionally, a one-way valve is arranged in a connecting pipeline between the liquid supplementing device and the reaction device, so that the liquid level in the liquid supplementing device is always consistent with the liquid level in the reaction device.
Optionally, a first pressure valve is arranged in a connecting pipeline between the liquid supplementing device and the reaction device, and the first pressure valve is configured so that the liquid level in the liquid supplementing device is slightly higher than the liquid level in the reaction device.
Optionally, the electrochemical oxygen regulating device further comprises:
an additional electrolyte bin which is communicated with the reaction device through a circulating pipeline; and
a motive device configured to controllably induce a circulating flow of electrolyte between the reaction device and the additional electrolyte reservoir.
Optionally, the electrochemical oxygen regulating device further comprises:
and the liquid supplementing device is communicated with the additional electrolyte bin so as to supplement liquid required by the electrochemical reaction to the additional electrolyte bin.
Optionally, a second pressure valve is arranged in a connecting pipeline between the liquid supplementing device and the additional electrolyte bin, and the second pressure valve is configured to be opened in a controlled manner or automatically opened under the action of a pressure difference between the liquid supplementing device and the additional electrolyte bin so as to allow liquid in the liquid supplementing device to be supplemented into the additional electrolyte bin, and a reserved air space is formed at the upper part of the additional electrolyte bin.
According to a second aspect of the present utility model, there is also provided a refrigerator including:
a case defining a storage space therein for storing articles; and
the electrochemical oxygen regulating device according to any one of the above schemes is used for regulating oxygen in at least part of the storage space.
The electrochemical oxygen regulating device comprises a reaction device and an exhaust device, wherein the exhaust device is particularly provided with a vertical pipe section which is directly connected with the reaction device and extends vertically upwards. Because the vertical pipe section has a certain vertical height, when the oxygen carrying part of the electrolyte discharged from the reaction device flows vertically upwards in the vertical pipe section, a longer ascending path can be provided for oxygen and the electrolyte. Compared with oxygen, the electrolyte has heavier weight and larger rising resistance, so when the vertical pipe section is long enough, the electrolyte does not rise any more, but flows back downwards along the vertical pipe section, thereby effectively recycling the electrolyte in the discharged oxygen and avoiding polluting the environment.
More importantly, the height of the vertical tube section is also set to have positive correlation with the operating current of the reaction device and/or the electrochemical reaction time period of the reaction device. This is because, when the current of the reaction device is increased, the oxygen regulation speed of the reaction device is increased, and the amount of oxygen generated is increased, so that the amount of electrolyte discharged with oxygen in the reaction device is increased. At this time, the vertical pipe section of the exhaust device is longer, so that the ascending path of the electrolyte can be further prolonged, more electrolyte flows back to the reaction device, and the cleaning degree of the exhausted oxygen is improved. When the electrochemical reaction time of the reaction device is longer, the heating value is larger, the temperature in the reaction device is higher, the gas pressure is higher, and the oxygen is more easily discharged with electrolyte. At this time, the vertical pipe section of the exhaust device is longer, so that the ascending path of the electrolyte can be further prolonged, more electrolyte flows back to the reaction device, and the cleaning degree of the exhausted oxygen is improved.
According to the device, the electrolyte in the discharged oxygen can be effectively recovered through the special design of the height of the vertical pipe section of the exhaust device, a very complex gas-liquid separation device is not required to be designed, the structure is very simple, the structure of the whole electrochemical oxygen regulating device is simplified, and the cost is reduced.
The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic block diagram of an electrochemical oxygen regulating device according to one embodiment of the present utility model;
FIG. 2 is a schematic view showing an internal structure of a reaction apparatus according to an embodiment of the present utility model;
FIG. 3 is a schematic block diagram of an electrochemical oxygen regulating device according to another embodiment of the present utility model;
FIG. 4 is a schematic structural view of a reaction apparatus and its related structures according to another embodiment of the present utility model;
fig. 5 is a schematic structural view of a refrigerator according to an embodiment of the present utility model.
Detailed Description
The present utility model first provides an electrochemical oxygen regulating device, and fig. 1 is a schematic structural diagram of the electrochemical oxygen regulating device according to an embodiment of the present utility model. Referring to fig. 1, an electrochemical oxygen regulating device 10 of the present utility model may generally include a reaction device 11 and an exhaust device 12.
The reaction device 11 is configured to regulate oxygen in a preset space through an electrochemical reaction. The preset space may be, for example, a storage compartment of a refrigerator in which the electrochemical oxygen regulating device is located. In some embodiments, adjusting the oxygen in the preset space may refer to consuming the oxygen through an electrochemical reaction, or may refer to generating the oxygen through an electrochemical reaction.
The exhaust means 12 communicates with the reaction means 11 for exhausting oxygen generated by the reaction means 11 during the electrochemical reaction. Specifically, the end of the exhaust device 12 is used to communicate with the external environment to exhaust the oxygen generated by the reaction device 11 to the external environment. The end of the exhaust device 12 may also be in communication with the oxygen-enriched space of the refrigerator to exhaust the oxygen generated by the reaction device 11 to the oxygen-enriched space.
In particular, the exhaust means 12 have a vertical pipe section 121 directly connected to the reaction means 11 and extending vertically upwards, the height of the vertical pipe section 121 being positively correlated with the operating current of the reaction means 11 and/or the duration of the electrochemical reaction of the reaction means 11.
The electrochemical oxygen regulating device 10 of the present utility model has a reaction device 11 and an exhaust device 12, the exhaust device 12 being particularly provided with a vertical pipe section 121 directly connected to the reaction device 11 and extending vertically upward. Since the vertical pipe section 121 has a certain vertical height, a long ascending path for oxygen and electrolyte can be provided when the oxygen-carrying partial electrolyte discharged from the reaction device 11 flows vertically upward in the vertical pipe section 121. The electrolyte is heavier than oxygen and has a larger rising resistance, so that when the vertical pipe section 121 is long enough, the electrolyte does not rise any more, but flows back down the vertical pipe section 121 to the reaction device 11, thereby effectively recovering the electrolyte in the discharged oxygen and avoiding environmental pollution.
More importantly, the height of the vertical tube sections 121 is also set in positive correlation with the operating current of the reactor 11 and/or the duration of the electrochemical reaction of the reactor 11. This is because, when the current of the reaction device 11 is increased, the oxygen adjusting speed of the reaction device 11 is increased, and the amount of oxygen generated is increased, so that the amount of electrolyte discharged with oxygen in the reaction device 11 is increased. At this time, the vertical pipe section 121 of the exhaust device 12 is provided longer, so that the ascending path of the electrolyte can be further prolonged, more electrolyte can be returned to the reaction device 11, and the degree of cleaning of the exhaust oxygen can be improved. When the electrochemical reaction time of the reaction device 11 is longer, the heat generation amount is larger, the temperature in the reaction device 11 is higher, the gas pressure is higher, and the oxygen is more likely to be discharged with the electrolyte. At this time, the vertical pipe section 121 of the exhaust device 12 is provided longer, so that the ascending path of the electrolyte can be further prolonged, more electrolyte can be returned to the reaction device 11, and the degree of cleaning of the exhaust oxygen can be improved.
The electrolyte in the discharged oxygen can be effectively recovered by specially designing the height of the vertical pipe section 121 of the exhaust device 12, a very complex gas-liquid separation device is not required to be designed, the structure is very simple, the structure of the whole electrochemical oxygen regulating device 10 is simplified, and the cost is reduced.
In some embodiments, the longer the electrochemical reaction time of the reaction device 11, the higher the height of the vertical tube segment 121, under certain operating currents of the reaction device 11. In the case where the electrochemical reaction time of the reaction device 11 is constant, the greater the operating current of the reaction device 11, the higher the height of the vertical pipe section 121.
Specifically, for a specific electrochemical oxygen adjusting apparatus 10, the operating current and the electrochemical reaction duration of the reaction apparatus 11 may be set values, and at this time, the height of the vertical pipe section 121 may be selected and fixed to the corresponding height value according to the set operating current and the set electrochemical reaction duration of the reaction apparatus 11.
In other embodiments, the operating current and the electrochemical reaction duration of the reaction device 11 may be adjusted according to the actual situation, and at this time, the height of the vertical tube section 121 may be also adjustable, or the system may be automatically adjusted according to the current operating current and the electrochemical reaction duration of the reaction device 11, or may be manually adjusted according to the gear corresponding to the current operating current and the electrochemical reaction duration of the reaction device 11 after use.
In particular, the reaction device 11 may be an electrolytic oxygen removal device having an electrolytic chamber 111 for containing an electrolyte, at least one reaction component 115 disposed within the electrolytic chamber 111. FIG. 2 is a schematic view showing the internal structure of a reaction apparatus according to an embodiment of the present utility model. Referring to fig. 2, each reaction assembly 115 includes a cathode portion 112 and an anode portion 113. The cathode 112 and the anode 113 are disposed in the electrolytic chamber 111 at a distance. The cathode part 112 is configured to consume oxygen in a preset space by performing an electrochemical reaction, and the anode part 113 is configured to supply a reactant to the cathode part and generate a gas, which may be oxygen, for example, by performing an electrochemical reaction. The gas generated in the reaction device 11 may be discharged through a gas outlet in the housing 114 thereof.
In the energized state, the cathode portion 112 serves to consume oxygen through an electrochemical reaction. For example, oxygen in the air in the preset space may undergo a reduction reaction at the cathode part 112, that is: o (O) 2 +2H 2 O+4e - →4OH - . OH generated by the cathode portion 112 - An oxidation reaction may occur at the anode portion 113 and oxygen gas may be generated, that is: 4OH - →O 2 +2H 2 O+4e - . The anode portion 113 uses OH - Occurrence ofAt the same time as the electrochemical reaction, the cathode portion is also supplied with reactants, e.g. electrons e - . The oxygen generated in the anode portion 113 is discharged through an exhaust pipe connected to an exhaust port. Specifically, the anode portion 113 may be a positive electrode, such as a nickel mesh or a titanium mesh; the cathode portion 112 may be a negative electrode, such as a catalytic film containing silver and manganese dioxide.
In the electrochemical reaction process, the electrolyte is continuously consumed by electrolysis, and thus, it is necessary to timely replenish the electrolyte into the electrolytic chamber 111. To this end, in some embodiments, the electrochemical oxygen-regulating device 10 further comprises a liquid replenishing device 13, and the liquid replenishing device 13 is in communication with the reaction device 11 to replenish the reaction device 11 with a liquid required for the electrochemical reaction.
Specifically, since the electrolyte in the electrolyte is not substantially consumed, the solvent in the electrolyte, such as water, is consumed. Therefore, the liquid replenishing device 13 may be a water tank, and the liquid contained in the water tank may be water, and the solvent may be replenished to the reaction device 11.
Further, the liquid replenishing device 13 may use physical potential energy to replenish water to the reaction device 11, and at this time, the liquid level in the liquid replenishing device 13 is consistent with the liquid level in the reaction device 11.
In some embodiments, the maximum level of the fluid replacement device 13 does not exceed the maximum position of the reaction device 11. That is, the highest liquid level of the liquid replenishing device 13 is lower than or equal to the highest position of the reaction device 11. The highest liquid level of the liquid replenishing device 13 may be flush with the top of the liquid replenishing device 13, and the highest position of the reaction device 11 is its top.
When the highest liquid level of the liquid replenishing device 13 is higher than the highest position of the reaction device 11, the exhaust pressure of the reaction device 11 may be increased, so that the oxygen generated by the reaction device 11 cannot be effectively discharged in time. If the oxygen is not timely and effectively discharged, the generated oxygen may be directly discharged to the preset space through the cathode 112 of the reaction device 11, resulting in ineffective oxygen regulation.
In some embodiments, the reaction device 11 includes a cathode portion 112 and an anode portion 113 disposed at a distance, the cathode portion 112 being configured to consume oxygen in a predetermined space through an electrochemical reaction, and the anode portion 113 being configured to supply a reactant to the cathode portion 112 and generate oxygen through the electrochemical reaction.
Further, the lowest liquid level of the liquid replenishing device 13 is not lower than 90% of the height of the cathode 112. That is, the lowest liquid level of the liquid replenishing device 13 is higher than or equal to 90% of the height of the cathode portion 112 to ensure that at least a large part of the area of the cathode portion 112 is in contact with the electrolyte. Wherein, 90% of the height of the cathode portion 112 means a position at a distance of 90% of the total height of the cathode portion 112 from the bottom of the cathode portion 112. The lowest level of the fluid replacement device 13 may be flush with the bottom of the fluid replacement device 13.
If the lowest liquid level of the liquid replenishing device 13 is too low, a larger area of the cathode 112 will not contact with the electrolyte, a larger air cavity may be formed, and when the external pressure is larger, the generated oxygen gas passes through the cathode 112 through the air cavity and is discharged to the preset space again, so as to reduce the oxygen regulating speed.
Preferably, the lowest liquid level of the liquid replenishing device 13 is not lower than the highest point of the cathode 112. That is, in the preferred embodiment, the lowest liquid level of the liquid replenishing device 13 is higher than or flush with the highest point of the cathode portion 112 to ensure that the entire cathode portion 112 is in contact with the electrolyte.
In some embodiments, a one-way valve 14 is provided in the connecting line between the liquid replenishing device 13 and the reaction device 11, so that the liquid level in the liquid replenishing device 13 and the liquid level in the reaction device 11 always remain the same. In this case, the position of the liquid replenishing device 13 has a limit such that the maximum liquid level and the minimum liquid level in the liquid replenishing device 13 satisfy the requirements described in the above embodiments, thereby achieving the optimal oxygen regulating effect and oxygen regulating efficiency.
Specifically, when the electrolyte in the reaction device 11 is consumed due to the electrochemical reaction, the liquid level therein gradually decreases and is lower than the liquid level in the replenishing device 13, and at this time, the pressure of the replenishing device 13 side to the check valve 14 is greater than the pressure of the reaction device 11 side to the check valve 14, and the check valve 14 is opened to allow the electrolyte in the replenishing device 13 to flow to the reaction device 11, thereby achieving the purpose of replenishing the electrolyte to the reaction device 11.
In other embodiments, a first pressure valve 15 may be disposed in the connecting pipeline between the liquid replenishing device 13 and the reaction device 11, where the first pressure valve 15 is configured such that the liquid level in the liquid replenishing device 13 is slightly higher than the liquid level in the reaction device 11, so as to further reduce the pressure when the reaction device 11 is exhausted, so that the exhausted oxygen carries the electrolyte as little as possible, and further improve the oxygen regulating speed.
Since the first pressure valve 15 is controllable, the maximum liquid level and the minimum liquid level in the liquid replenishing device 13 can be made to meet the requirements described in the above embodiments by the opening and closing control of the first pressure valve 15, and at this time, the position restriction of the liquid replenishing device 13 is relaxed.
Of course, the water is also required to be replenished in the replenishing device 13, and therefore, the liquid level in the replenishing device 13 needs to be monitored. One way is to set the fluid infusion device 13 transparent so that the user can observe the fluid level in the fluid infusion device 13 at any time; another way is to add a liquid level sensor in the liquid supplementing device 13, and the liquid level sensor monitors the liquid level condition in the liquid supplementing device 13 so as to automatically carry out water supplementing prompt.
Fig. 3 is a schematic structural view of an electrochemical oxygen regulating device according to another embodiment of the present utility model, and fig. 4 is a schematic structural view of a reaction device and its related structures according to another embodiment of the present utility model. In other embodiments, the electrochemical oxygen-regulating device 10 further includes an additional electrolyte cartridge 16 and a power device 17. The additional electrolyte reservoir 16 communicates with the reaction device 11 via a circulation line 19. The power means 17 is configured to controllably promote the circulation of electrolyte between the reaction means 11 and the additional electrolyte reservoir 16. The oxygen retained in the electrolyte flowing circularly can be discharged at an accelerated speed, so that the internal pressure of the electrochemical oxygen regulating device 10 is reduced, and the invalid oxygen regulating effect caused by the fact that the oxygen generated by electrolysis is discharged to a preset space through the cathode part of the reaction device 11 due to the overlarge internal pressure is avoided, and a better oxygen regulating effect is ensured.
According to the utility model, by arranging the additional electrolyte bin 16, the electrolyte containing capacity of the electrochemical oxygen regulating device 10 is increased, and the electrolyte in the reaction device 11 and the electrolyte in the additional electrolyte bin 16 can be circulated after the power device 17 is started, so that the electrolyte in the reaction device 11 is replaced by the electrolyte in the additional electrolyte bin 16, the reaction device 11 is ensured to have higher electrolysis speed all the time, and the electrolysis efficiency is improved.
The inventors have recognized that when the reaction device 11 is not used for a long time, the electrolyte therein may be left for a long time to stand, possibly causing a certain precipitation phenomenon, resulting in uneven distribution of the electrolyte therein, affecting the electrolysis efficiency. The power device 17 can also effectively circulate the electrolyte in the reaction device 11 in advance so as to reduce the precipitate possibly formed by the reaction device 11 and ensure that the electrolyte in the reaction device 11 is always in a full-load state, thereby improving the working efficiency and the oxygen regulating efficiency of the reaction device 11.
Further, the electrochemical oxygen regulating device 10 further comprises a liquid replenishing device 13, and the liquid replenishing device 13 is communicated with the additional electrolyte bin 16 to replenish the liquid required by the electrochemical reaction to the additional electrolyte bin 16.
In some embodiments, a second pressure valve 18 is provided in the connection between the replenishing device 13 and the additional electrolyte reservoir 16, the second pressure valve 18 being configured to be opened controllably or automatically under the influence of a pressure difference between the replenishing device 13 and the additional electrolyte reservoir 16, to allow the liquid in the replenishing device 13 to be replenished into the additional electrolyte reservoir 16 and to form a headspace in the upper part of the additional electrolyte reservoir 16. Thus, when the power plant 17 is operating, there is sufficient space for the electrolyte to flow, thereby reducing the pressure of the electrolyte against the structure.
Specifically, the additional electrolyte reservoir 16 is typically closed, wherein a certain pressure is built up. As the electrochemical reaction of the reaction device 11 proceeds, the solvent (typically water) in the electrolyte is consumed and the liquid level in the additional electrolyte reservoir 16 drops and the pressure therein gradually decreases. When the pressure in the additional electrolyte reservoir 16 decreases to a certain extent, the second pressure valve 18 is opened, the liquid in the liquid replenishing device 13 is replenished into the additional electrolyte reservoir 16, the pressure in the liquid replenishing device 13 is gradually decreased, the pressure in the additional electrolyte reservoir 16 is gradually increased, and when the pressure in the liquid replenishing device 13 is balanced with the pressure in the additional electrolyte reservoir 16, the second pressure valve 18 is closed.
The present utility model also provides a refrigerator 1, and fig. 5 is a schematic structural view of a refrigerator according to an embodiment of the present utility model. The refrigerator 1 may generally include a cabinet 20, with a storage space defined within the cabinet 20.
In particular, the refrigerator 1 further comprises the electrochemical oxygen regulating device 10 described in any of the above embodiments for regulating oxygen in a predetermined space. The predetermined space may be a storage space in the case 20. Specifically, the cathode portion 112 of the reaction device 11 may be in fluid communication with a certain storage space in the case 20, so as to consume oxygen in the storage space when performing electrochemical reaction, thereby achieving the purpose of reducing the oxygen content in the storage space. The anode portion 113 of the reaction device 11 may be in fluid communication with another storage space of the case 20 such that oxygen generated by the anode portion 113 is discharged to the other storage space of the case 20, thereby achieving the purpose of increasing the oxygen content of the other storage space. Of course, one of the cathode 112 and anode 113 portions of the reactor 11 may be directly connected to the external environment.
The refrigerator 1 provided by the utility model is provided with the electrochemical oxygen regulating device 10, and can quickly create a low-oxygen and/or high-oxygen space in the refrigerator 1 so as to store food materials with different oxygen content requirements. For example, the hypoxia fresh-keeping space can inhibit respiration of food materials such as fruits and vegetables, slow down physiological agents and prolong fresh-keeping time; the high oxygen fresh-keeping space can provide high oxygen atmosphere for meat, fungus and other food materials.
The refrigerator 1 of the utility model is provided with the electrochemical oxygen regulating device 10, the exhaust device 12 of the electrochemical oxygen regulating device 10 is provided with a vertical pipe section 121, and because the vertical pipe section 121 has a certain vertical height, when the electrolyte of the oxygen carrying part discharged from the reaction device 11 flows vertically upwards in the vertical pipe section 121, a longer ascending path can be provided for oxygen and the electrolyte. The electrolyte is heavier than oxygen and has a larger rising resistance, so that when the vertical pipe section 121 is long enough, the electrolyte does not rise any more, but flows back down the vertical pipe section 121 to the reaction device 11, thereby effectively recovering the electrolyte in the discharged oxygen and avoiding environmental pollution. When the current of the reaction device 11 is increased, the oxygen adjusting speed of the reaction device 11 is increased, and the amount of oxygen generated is increased, so that the amount of electrolyte discharged with oxygen in the reaction device 11 is increased. When the electrochemical reaction time of the reaction device 11 is longer, the heat generation amount is larger, the temperature in the reaction device 11 is higher, the gas pressure is higher, and the oxygen is more likely to be discharged with the electrolyte. At this time, the vertical pipe section 121 of the exhaust device 12 is provided longer, so that the ascending path of the electrolyte can be further prolonged, more electrolyte can be returned to the reaction device 11, and the degree of cleaning of the exhaust oxygen can be improved.
The electrolyte in the discharged oxygen can be effectively recovered by specially designing the height of the vertical pipe section 121 of the exhaust device 12, a very complex gas-liquid separation device is not required to be designed, the structure is very simple, the structure of the whole electrochemical oxygen regulating device 10 is simplified, and the cost is reduced.
It should be understood by those skilled in the art that the refrigerator 1 of the present utility model is an electrical apparatus having a low temperature storage function, and may be a narrow-sense refrigerator, including a refrigerator, a storage cabinet, and other types of refrigerating and freezing apparatuses.
It should be understood by those skilled in the art that the above-described embodiments are only a part of embodiments of the present utility model, and not all embodiments of the present utility model, and the part of embodiments is intended to explain the technical principles of the present utility model and not to limit the scope of the present utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present utility model, shall still fall within the scope of protection of the present utility model.
Further, it should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.
Claims (11)
1. An electrochemical oxygen regulating device, comprising:
a reaction device configured to regulate oxygen in a preset space through an electrochemical reaction;
an exhaust device in communication with the reaction device for exhausting oxygen generated by the reaction device during an electrochemical reaction; wherein the method comprises the steps of
The exhaust device is provided with a vertical pipe section which is directly connected with the reaction device and extends vertically upwards, and the height of the vertical pipe section is in positive correlation with the working current of the reaction device and/or the electrochemical reaction time length of the reaction device.
2. The electrochemical oxygen regulating apparatus of claim 1, wherein,
under the condition that the working current of the reaction device is constant, the longer the electrochemical reaction time of the reaction device is, the higher the height of the vertical pipe section is; and is also provided with
Under the condition that the electrochemical reaction time of the reaction device is constant, the larger the working current of the reaction device is, the higher the height of the vertical pipe section is.
3. The electrochemical oxygen regulating device of claim 1, further comprising:
and the liquid supplementing device is communicated with the reaction device to supplement liquid required by electrochemical reaction for the reaction device.
4. The electrochemical oxygen regulating apparatus of claim 3, wherein,
the highest liquid level of the liquid supplementing device does not exceed the highest position of the reaction device.
5. The electrochemical oxygen regulating apparatus of claim 3, wherein,
the reaction device comprises a cathode part and an anode part which are arranged at intervals, wherein the cathode part is configured to consume oxygen in a preset space through electrochemical reaction, and the anode part is configured to provide reactants for the cathode part and generate oxygen through electrochemical reaction; wherein the method comprises the steps of
The lowest liquid level of the liquid supplementing device is not lower than 90% of the height of the cathode part.
6. The electrochemical oxygen regulating apparatus of claim 3, wherein,
and a one-way valve is arranged in a connecting pipeline between the liquid supplementing device and the reaction device, so that the liquid level in the liquid supplementing device is always consistent with the liquid level in the reaction device.
7. The electrochemical oxygen regulating apparatus of claim 3, wherein,
a first pressure valve is arranged in a connecting pipeline between the liquid supplementing device and the reaction device, and the first pressure valve is configured to enable the liquid level in the liquid supplementing device to be slightly higher than the liquid level in the reaction device.
8. The electrochemical oxygen regulating device of claim 1, further comprising:
an additional electrolyte bin which is communicated with the reaction device through a circulating pipeline; and
a motive device configured to controllably induce a circulating flow of electrolyte between the reaction device and the additional electrolyte reservoir.
9. The electrochemical oxygen regulating device of claim 8, further comprising:
and the liquid supplementing device is communicated with the additional electrolyte bin so as to supplement liquid required by the electrochemical reaction to the additional electrolyte bin.
10. The electrochemical oxygen regulating apparatus of claim 9, wherein,
a second pressure valve is arranged in a connecting pipeline between the fluid supplementing device and the additional electrolyte bin, and the second pressure valve is configured to be opened in a controlled manner or automatically opened under the action of a pressure difference between the fluid supplementing device and the additional electrolyte bin so as to allow the fluid in the fluid supplementing device to be supplemented into the additional electrolyte bin and form a reserved air space at the upper part of the additional electrolyte bin.
11. A refrigerator, comprising:
a case defining a storage space therein for storing articles; and
the electrochemical oxygen-regulating device of any one of claims 1-10, for regulating oxygen within at least a portion of the storage space.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320154276.XU CN219342307U (en) | 2023-01-30 | 2023-01-30 | Electrochemical oxygen regulating device and refrigerator with same |
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| CN202320154276.XU CN219342307U (en) | 2023-01-30 | 2023-01-30 | Electrochemical oxygen regulating device and refrigerator with same |
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| CN219342307U true CN219342307U (en) | 2023-07-14 |
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| CN (1) | CN219342307U (en) |
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2023
- 2023-01-30 CN CN202320154276.XU patent/CN219342307U/en active Active
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