WO2023098413A1

WO2023098413A1 - Oxygen treatment device and refrigerator comprising same

Info

Publication number: WO2023098413A1
Application number: PCT/CN2022/130342
Authority: WO
Inventors: 王睿龙; 刘浩泉; 苗建林; 黄璐璐
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2021-12-03
Filing date: 2022-11-07
Publication date: 2023-06-08
Also published as: CN116222115A

Abstract

An oxygen treatment device and a refrigerator comprising same. The oxygen treatment device comprises: an oxygen treatment assembly configured to treat oxygen in a working environment where the oxygen treatment assembly is located, an exhaust nozzle being provided on the oxygen treatment assembly and configured to exhaust a gas generated when the oxygen treatment assembly treats oxygen; and a separation bin communicated with the exhaust nozzle, an arc-shaped airflow channel being formed in the separation bin, and the separation bin being configured to enable a gas flowing through the separation bin to flow along a curved surface, such that a liquid carried in the gas is separated. The solution of the present invention provides an oxygen treatment device having a gas-liquid separation function. The separated liquid is retained in the separation bin, such that environmental pollution caused by gas emission can be reduced or avoided.

Description

Oxygen treatment device and refrigerator having the same

technical field

The invention relates to fresh-keeping technology, in particular to an oxygen treatment device and a refrigerator with the same.

Background technique

For some oxygen treatment devices, such as the oxygen treatment device used to reduce or increase the oxygen in the refrigerator, the process of processing oxygen requires the participation of electrolyte, and at the same time, gas will be generated.

During the reaction process, due to the generation of a large amount of heat, the electrolyte will be heated and evaporated, which may cause the electrolyte vapor to be carried in the gas discharged from the oxygen treatment device. Most electrolytes are acidic or alkaline solutions, which are corrosive. If the gas generated during the treatment process is discharged directly into the air without treatment, it may cause air pollution and endanger life and health.

In addition, when the gas generated by the oxygen treatment device carries electrolyte vapor, the electrolyte will be lost slowly, which will lead to waste of resources and increase production costs.

Contents of the invention

An object of the present invention is to overcome at least one technical defect in the prior art, and provide an oxygen treatment device and a refrigerator having the same.

A further object of the present invention is to provide an oxygen treatment device with a gas-liquid separation function to reduce or avoid environmental pollution caused by gas discharge.

Another further object of the present invention is to make the oxygen treatment device realize gas-liquid separation with a delicate structure and reduce the manufacturing cost.

A further object of the present invention is to enable the oxygen treatment device to have a resource recovery function and improve resource utilization.

Yet another further object of the present invention is to improve the safety of the oxygen treatment device and prevent liquid leakage.

Another further object of the present invention is to enable the oxygen treatment device and the refrigerator having it to have high oxygen consumption efficiency and oxygen supply efficiency at the same time.

According to one aspect of the present invention, an oxygen treatment device is provided, including: an oxygen treatment component configured to process oxygen in its working environment; an exhaust nozzle is provided on the oxygen treatment component, configured to discharge the oxygen treatment component for treatment The gas produced by oxygen; and the separation chamber, which communicates with the exhaust nozzle, and forms an arc-shaped airflow channel inside, configured to make the gas flowing through it flow along the curved surface, so as to separate the liquid carried by the gas.

Optionally, the separation bin is in the shape of a hollow cylinder or a hollow sphere, so as to define an arc-shaped airflow channel.

Optionally, an air inlet and an air outlet are provided on the separation chamber; the air inlet is located at the top section or the middle section of the separation chamber, and communicates with the exhaust nozzle, and the air outlet and the air inlet are arranged at intervals, and the configuration To discharge the gas flowing through the separation chamber.

Optionally, an air duct is arranged in the separation chamber, communicates with the air outlet, extends downward to the bottom section of the separation chamber, and forms a gap with the bottom wall of the separation chamber.

Optionally, the oxygen processing assembly has a housing, and a reaction chamber is formed inside it, and the exhaust nozzle is set on the housing, and a liquid return nozzle connected to the reaction chamber is also opened on the housing; and a liquid outlet is provided at the bottom of the separation chamber. The mouth is connected with the liquid return nozzle, and is configured to make the liquid separated from the separation chamber flow back into the reaction chamber.

Optionally, the oxygen treatment device further includes: a liquid return switch disposed at the liquid return nozzle and configured to be activated or closed in a controlled manner, thereby opening or closing the liquid return nozzle.

Optionally, the oxygen treatment device further includes: an exhaust shutter, arranged at the exhaust nozzle, configured to be activated or closed in a controlled manner, thereby opening or closing the exhaust nozzle; and the liquid return shutter is configured to The air shutter is controlled to activate before closing the exhaust nozzle and is configured to close simultaneously with the exhaust shutter.

Optionally, the exhaust switch is an electromagnetic switching valve, and has an air inlet port and an air outlet valve port, the air inlet port is connected to the exhaust nozzle, the air outlet valve port is connected to the air inlet of the separation chamber, and the exhaust valve is opened and closed. The device is configured to be activated or deactivated in a controlled manner to open and close the outlet valve port.

Optionally, the oxygen treatment component further includes: a cathode part, which is used to perform an electrochemical reaction under the action of an electrolysis voltage to consume oxygen; an anode part, which is used to perform an electrochemical reaction under the action of an electrolysis voltage to generate oxygen; and a barrier The part is arranged between the anode part and the cathode part, and is used to block the anode part and the cathode part, so as to prevent the oxygen generated in the anode part from diffusing to the cathode part.

According to another aspect of the present invention, there is also provided a refrigerator, including: the oxygen treatment device according to any one of the above

In the oxygen treatment device and the refrigerator with it of the present invention, since the oxygen treatment device is provided with a separation chamber that communicates with the exhaust nozzle of the oxygen treatment assembly, and the inside of the separation chamber forms an arc-shaped air flow channel, the gas flowing through the arc-shaped air flow channel passes through Flowing along the curved surface can realize gas-liquid separation. Therefore, the present invention provides an oxygen treatment device with gas-liquid separation function. The separated liquid stays in the separation chamber, thereby reducing or avoiding environmental damage caused by gas discharge. pollute.

Furthermore, in the oxygen treatment device and the refrigerator with it of the present invention, since the arc-shaped airflow channel can be defined by a hollow cylindrical or hollow spherical separation chamber, it is only necessary to connect the exhaust nozzle to the hollow cylindrical shell or hollow spherical shell , gas-liquid separation can be carried out. Therefore, the oxygen treatment device of the present invention has the advantages of compact structure and low manufacturing cost.

Further, in the oxygen treatment device and the refrigerator with it of the present invention, since the liquid outlet is provided on the separation chamber, the liquid outlet communicates with the liquid return nozzle connected to the reaction chamber, and is configured to make the liquid separated by the separation chamber return To the reaction chamber, therefore, the oxygen treatment device of the present invention has a resource recovery function, which is conducive to improving the resource utilization rate of the oxygen treatment device.

Further, in the oxygen treatment device and the refrigerator having the same of the present invention, since the oxygen treatment device has an exhaust shutter arranged at the exhaust nozzle, the exhaust shutter is configured to be activated or closed in a controlled manner to open Or close the exhaust nozzle. When the exhaust nozzle is closed, even if the oxygen treatment device is displaced or tilted, the liquid in the reaction chamber cannot overflow from the exhaust nozzle. Therefore, the oxygen treatment device of the present invention has higher safety , can effectively prevent the leakage problem.

Furthermore, in the oxygen treatment device and the refrigerator having it of the present invention, since a barrier is provided between the cathode and the anode of the oxygen treatment assembly, the barrier can prevent the oxygen generated in the anode from diffusing to the cathode, thereby enabling Promote the directional output of the oxygen produced by the anode, and also prevent the cathode from using the oxygen from the anode to carry out electrochemical reactions, causing the oxygen treatment device to be unable to consume the oxygen in the external space. Therefore, the oxygen treatment device and the refrigerator of the present invention have both Higher oxygen consumption efficiency and oxygen supply efficiency.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

1 is a schematic structural diagram of an oxygen treatment device according to an embodiment of the present invention;

Fig. 2 is a schematic perspective view of a separation chamber of the oxygen treatment device shown in Fig. 1;

Fig. 3 is a schematic top view of a separation chamber of the oxygen treatment device shown in Fig. 2;

4 is a schematic structural diagram of an oxygen treatment device according to another embodiment of the present invention;

5 is a schematic structural diagram of an oxygen treatment component of an oxygen treatment device according to an embodiment of the present invention;

Figure 6 is a schematic exploded view of an oxygen treatment assembly of an oxygen treatment device according to another embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention.

Detailed ways

Fig. 1 is a schematic structural diagram of an oxygen treatment device 10 according to an embodiment of the present invention. The oxygen treatment device 10 of this embodiment is used to be installed in the refrigerator 1 to adjust the oxygen concentration in the storage space of the refrigerator 1, for example, to reduce the oxygen concentration in the storage space, or to increase the oxygen concentration in the storage space .

The oxygen processing plant 10 may generally include an oxygen processing assembly 100 and a separation chamber 200 .

Wherein, the oxygen processing assembly 100 is configured to process oxygen in its working environment. In this embodiment, the working environment where the oxygen treatment assembly 100 is located refers to a storage space where oxygen concentration needs to be adjusted.

An exhaust nozzle 112 is opened on the oxygen treatment component 100 and is configured to discharge gas generated when the oxygen treatment component 100 processes oxygen. The separation chamber 200 communicates with the exhaust nozzle 112 , and forms an arc-shaped airflow channel inside, which is configured to make the gas flowing through it flow along a curved surface, so as to separate the liquid carried by the gas. When the gas flows through the arc-shaped airflow channel, the gas will naturally flow along the curved surface to form a vortex for gas-liquid separation.

The method of processing oxygen by the oxygen processing component 100 can be set according to actual needs, for example, the oxygen can be processed by electrochemical reaction. As for the type of electrochemical reaction, those skilled in the art can choose according to actual needs, for example, it may be the reaction of electrolyzing water. The oxygen processing device 10 will be described in detail below by taking the case of processing oxygen by electrolysis of water as an example, but it should be noted that those skilled in the art should be easy to treat in other ways on the basis of understanding the following embodiments The situation of oxygen is expanded and changed, and these expansions and changes should fall within the protection scope of the present invention.

The oxygen treatment device 10 of this embodiment is especially suitable for a scenario where gas is generated when the oxygen treatment component 100 processes oxygen, and liquid is entrained during the discharge of the gas. Take the method of treating oxygen by electrochemical reaction as an example. Since the electrochemical reaction is carried out in the electrolyte, the electrolyte is usually an acidic or alkaline solution. Therefore, when the gas is discharged, the corrosive electrolyte will be entrained. If it is discharged directly after treatment, it will cause environmental pollution.

In order to avoid environmental pollution, the inventor has made a special design for the structure of the oxygen treatment device 10 . Since the oxygen treatment device 10 is provided with a separation chamber 200 connected to the exhaust nozzle 112 of the oxygen treatment assembly 100, and the interior of the separation chamber 200 forms an arc-shaped air flow channel, the gas flowing through the arc-shaped air flow channel flows along a curve, which can realize gas flow. Therefore, this embodiment provides an oxygen treatment device 10 with gas-liquid separation function. The separated liquid stays in the separation chamber 200, thereby reducing or avoiding environmental pollution caused by gas discharge. The entire device The structure is simple and easy to manufacture.

FIG. 2 is a schematic perspective view of the separation chamber 200 of the oxygen treatment device 10 shown in FIG. 1 . FIG. 3 is a schematic top view of the separation chamber 200 of the oxygen treatment device 10 shown in FIG. 2 . The direction of the arrow in the figure shows the flow direction of the airflow. In some optional embodiments, the separation bin 200 is in the shape of a hollow cylinder or a hollow sphere, so as to define an arc-shaped airflow channel. The inner wall of the separation chamber 200 forms the above-mentioned arc-shaped airflow channel. After the gas flows into the separation chamber 200, it will be blocked and guided by its own gravity and the inner wall of the separation chamber 200, and will flow in a centrifugal downward, inclined and rotating manner to form a vortex. The inner wall of the separation chamber 200 collides and adheres to the inner wall, or is separated due to the decrease of the flow velocity, continuously enriches and finally slides to the bottom of the separation chamber 200, and the clean gas from which the liquid is removed can be discharged through the gas outlet 240 of the separation chamber 200 , so as to complete the gas-liquid separation.

Since the arc-shaped airflow channel can be defined by the hollow cylindrical or hollow spherical separation chamber 200, it is only necessary to connect the exhaust nozzle 112 to the hollow cylindrical shell 110 or the hollow spherical shell 110 to perform gas-liquid separation. The oxygen treatment device 10 of the embodiment has the advantages of compact structure and low manufacturing cost.

The separation chamber 200 is provided with an air inlet 220 and an air outlet 240 . Wherein, the air inlet 220 is located at the top section or the middle section of the separation chamber 200 , and communicates with the exhaust nozzle 112 , for example, it may communicate indirectly through the communication pipe 300 . The gas outlet 240 is spaced apart from the gas inlet 220 and configured to discharge the gas flowing through the separation chamber 200 . Preferably, the gas outlet 240 can be set at the same height as the gas inlet 220 , or can be set higher than the gas inlet 220 , which can reduce or prevent the gas without gas-liquid separation from being directly discharged from the gas outlet 240 . For example, the air outlet 240 and the air inlet 220 can be arranged oppositely, and are located at the middle and upper part of the separation chamber 200, the air inlet 220 can be arranged near the front end of the separation chamber 200, and the air outlet 240 can be arranged near the rear end of the separation chamber 200.

In some optional embodiments, an air duct 260 may be provided in the separation chamber 200, communicate with the air outlet 240, and extend downward to the bottom section of the separation chamber 200, and between the bottom wall of the separation chamber 200 A gap is formed. For example, the airway 260 may be in an inverted L shape. The gas separated from the liquid can flow through the air duct 260 and flow to the gas outlet 240 under the guidance of the air duct 260 .

Utilizing the air guide tube 260 to connect the air outlet 240 with the inner space of the separation chamber 200 can further prevent the liquid adhering to the inner wall of the separation chamber 200 from flowing out with the gas, and because the air guide tube 260 defines a bottom-up airflow discharge path, the guide The gas pipe 260 can also play a certain role in gas-liquid separation, so as to further optimize the gas-liquid separation effect of the separation chamber 200 .

In some optional embodiments, the positions of the air inlet 220 and the air outlet 240 may be interchanged.

Fig. 4 is a schematic structural diagram of an oxygen treatment device 10 according to another embodiment of the present invention. The direction of the arrow in the figure shows the flow direction of the airflow. In this embodiment, the positions of the air outlet 240 and the air inlet 220 and the connection mode of the air duct 260 are changed. The transformed air outlet 240 and air inlet 220 are located at the top of the separation chamber 200 respectively, and the air duct 260 communicates with the air inlet 220 and extends downward to the bottom section of the separation chamber 200, and is connected to the bottom of the separation chamber 200. A gap is formed between the walls. The airway tube 260 in this embodiment is a straight tube. By opening the gas outlet 240 and the gas inlet 220 on the top of the separation chamber 200, the gas flow path in the separation chamber 200 can be extended, thereby improving the gas-liquid separation effect.

In some optional embodiments, the separation chamber 200 may also be provided with a partition, or filled with fillers, so that the gas-liquid separation may be performed using the partitions or fillers. In other optional embodiments, the gas-liquid separation method of the separation chamber 200 can also be changed to a cyclone type.

In some optional embodiments, the oxygen treatment assembly 100 has a casing 110 , a reaction chamber 111 is formed inside it, and an exhaust nozzle 112 is opened on the casing 110 . For example, when an electrochemical reaction is used to process oxygen, the reaction chamber 111 is used to contain the electrolyte. The gas generated by the electrochemical reaction in the reaction chamber 111 is discharged into the separation chamber 200 through the exhaust nozzle 112 , and gas-liquid separation is performed in the separation chamber 200 .

The housing 110 is also provided with a liquid return nozzle 118 communicating with the reaction chamber 111 . A liquid outlet 210 is opened at the bottom of the separation chamber 200 , which communicates with the liquid return nozzle 118 and is configured to make the liquid separated by the separation chamber 200 flow back into the reaction chamber 111 . That is to say, the liquid retained in the separation chamber 200 due to the gas-liquid separation can flow through the liquid outlet 210 and the liquid return nozzle 118 sequentially, and then return to the reaction chamber 111 .

Since the separation chamber 200 is provided with a liquid outlet 210, the liquid outlet 210 communicates with the liquid return nozzle 118 connected to the reaction chamber 111, and is configured to make the liquid separated by the separation chamber 200 flow back into the reaction chamber 111. Therefore, this The oxygen treatment device 10 of the embodiment has a resource recovery function, which is beneficial to improve the resource utilization rate of the oxygen treatment device 10 .

In some further embodiments, the oxygen treatment device 10 further includes a liquid return switch (not shown), which is arranged at the liquid return nozzle 118 and is configured to be activated or closed in a controlled manner, thereby opening or closing the liquid return nozzle 118 . That is to say, by controlling the opening and closing state of the liquid return switch, the liquid return nozzle 118 can be opened and closed, and then the liquid flow path between the separation chamber 200 and the reaction chamber 111 can be switched on and off.

In some embodiments, the liquid return switch can be an electromagnetic switching valve, and has a liquid inlet port and a liquid outlet valve port, the liquid inlet port is connected to the liquid outlet port 210, and the liquid outlet valve port is connected to the liquid return nozzle 118, and The liquid return shutter is configured to be activated or closed in a controlled manner to open and close the discharge valve port.

By setting the liquid return switch to open and close the liquid return nozzle 118, the liquid return nozzle 118 can be closed when the oxygen treatment module 100 discharges gas, reducing or preventing the gas from flowing back from the liquid outlet 210 to the reaction chamber 111, thereby ensuring the gas discharge efficiency , the liquid return nozzle 118 can also be opened after the oxygen treatment component 100 completes the gas discharge, so as to allow the liquid remaining in the separation chamber 200 to flow back to the reaction chamber 111, thereby improving resource utilization.

In some optional embodiments, the oxygen treatment device 10 may further include an exhaust shutter (not shown), disposed at the exhaust nozzle 112, configured to be activated or closed in a controlled manner, thereby opening or closing Exhaust nozzle 112. That is to say, by controlling the opening and closing state of the exhaust switch, the exhaust nozzle 112 can be opened and closed, and then the gas flow path between the separation chamber 200 and the reaction chamber 111 can be switched on and off.

The liquid return shutter is configured to be controllably actuated before the exhaust shutter closes the exhaust nozzle 112 and is configured to close simultaneously with the exhaust shutter. For example, the liquid return switch can be activated in a controlled manner (interval 1-10 min, such as 5 min) after the oxygen treatment component 100 finishes the electrochemical reaction, and maintain a set period of time (such as 1-10 min), and then open the exhaust gas. The shutter and the liquid return shutter are simultaneously controlled and closed to close the exhaust nozzle 112 and the liquid return nozzle 118. Such setting can ensure that all the gas in the reaction chamber 111 is exhausted, and can avoid the liquid recovery process from interfering with the gas-liquid separation process.

In some embodiments, the exhaust switch is an electromagnetic switching valve, and has an air inlet port and an air outlet valve port, the air inlet port is connected to the exhaust nozzle 112, the air outlet valve port is connected to the air inlet 220, and the exhaust valve port The shutter is configured to be activated or closed in a controlled manner to open and close the outlet valve port. The exhaust shutter of this embodiment is also configured to be activated in a controlled manner before the oxygen treatment assembly 100 begins the electrochemical reaction. For example, when it is determined that the oxygen in the storage space needs to be treated, the exhaust switch is activated first, and the oxygen treatment component 100 is started to perform the electrochemical reaction under the condition that the outlet valve is in an open state.

Since the oxygen treatment device 10 has an exhaust shutter arranged at the exhaust nozzle 112, the exhaust shutter is configured to be activated or closed in a controlled manner to open or close the exhaust nozzle 112, when the exhaust nozzle 112 is When closed, even if the oxygen treatment device 10 is displaced or tilted, the liquid in the reaction chamber 111 cannot overflow from the exhaust nozzle 112. Therefore, the oxygen treatment device 10 of this embodiment has higher safety and can effectively prevent leakage. Liquid problem, which is beneficial to prolong the service life of the device and enhance the fresh-keeping effect.

Since the exhaust switch can completely close the exhaust nozzle 112 and cut off the gas flow path between the separation chamber 200 and the reaction chamber 111, no matter whether the oxygen treatment device 10 itself is tilted or inverted, or it is installed with oxygen When the refrigerator 1 of the processing device 10 is tilted or turned upside down, the electrolytic solution will not overflow from the exhaust nozzle 112, thereby completely solving the hidden danger of liquid leakage of the device.

It should be noted that, for the electromagnetic switching valve, the on-off state can be adjusted by controlling its energized state. For example, the electromagnetic switching valve is in the closed state when it is not energized, and it is in the activated state when it is energized. On the basis of understanding this embodiment, those skilled in the art should easily know the structure and position of the electromagnetic switching valve, therefore, it is not marked in the figure.

Fig. 5 is a schematic structural diagram of the oxygen treatment assembly 100 of the oxygen treatment device 10 according to an embodiment of the present invention. In some optional embodiments, the oxygen treatment assembly 100 may further include a cathode part 120 , an anode part 140 and a barrier part 160 .

Wherein, the cathode part 120 is used for electrochemical reaction to consume oxygen under the action of electrolysis voltage. The anode part 140 is used to perform an electrochemical reaction under the action of an electrolysis voltage to generate oxygen. The blocking part 160 is disposed between the anode part 140 and the cathode part 120 for blocking the anode part 140 and the cathode part 120 to prevent the oxygen gas generated by the anode part 140 from diffusing to the cathode part 120 .

That is to say, the barrier part 160 separates the space where the cathode part 120 is located and the space where the anode part 140 is located into two spaces that are not communicated with each other, thereby preventing gas exchange between the two spaces. For example, the barrier part 160 can be a gas barrier film, or a porous mesh film with a specific pore size, a nuclear pore film, a non-woven fabric, etc., as long as it can prevent gas penetration. The cathode part 120 and the anode part 140 may be a cathode electrode and an anode electrode, respectively, and perform a reduction reaction and an oxidation reaction, respectively.

Since the barrier part 160 is arranged between the cathode part 120 and the anode part 140 of the oxygen treatment assembly 100, the barrier part 160 can prevent the oxygen gas produced by the anode part 140 from diffusing to the cathode part 120, thereby promoting the orientation of the oxygen gas produced by the anode part 140. output, it can also prevent the cathode part 120 from using the oxygen from the anode part 140 to carry out electrochemical reaction and cause the oxygen treatment device 10 to be unable to consume the oxygen in the external space. Therefore, the oxygen treatment device 10 and the refrigerator 1 of this embodiment have high Oxygen consumption efficiency and oxygen supply efficiency.

By setting the barrier part 160 between the anode part 140 and the cathode part 120, and making the anode part 140 and the cathode part 120 carry out the oxygen supply reaction and the oxygen consumption reaction respectively, the oxygen treatment device 10 can be supplied to a certain external space. Oxygen can also consume oxygen in another external space. Therefore, the oxygen treatment device 10 of this embodiment can simultaneously create a low-oxygen fresh-keeping atmosphere and a high-oxygen fresh-keeping atmosphere with a simple structure. When the oxygen treatment device 10 of this embodiment is applied to the refrigerator 1, it is no longer necessary to separately install a deoxygenation module for oxygen consumption and an oxygen supply module for oxygen supply, and the overall structure of the refrigerator 1 is simpler.

It should be noted that although the oxygen treatment device 10 of the present invention substantially has both the oxygen consumption function and the oxygen supply function, when it is applied to the refrigerator 1 , it does not necessarily perform the oxygen consumption work and the oxygen supply work at the same time. Users or engineers can selectively enable the oxygen consumption function and the oxygen supply function of the oxygen treatment device 10 according to actual usage requirements. For example, when the oxygen consumption function needs to be activated, the cathode part 120 can be communicated with the space to be deoxygenated; when the oxygen supply function needs to be activated, the anode part 140 or the exhaust nozzle 112 of the oxygen processing device The air flow in the space of oxygen can be communicated.

An opening 114 is defined on the casing 110 . The cathode portion 120 is disposed at the opening 114 to define together with the casing 110 a reaction chamber 111 for containing the electrolyte. The barrier part 160 is disposed in the reaction chamber 111 and divides the reaction chamber 111 into a first subspace 111a and a second subspace 111b. The first subspace 111a communicates with the cathode part 120, and the anode part 140 is disposed in the second subspace 111b.

For example, the housing 110 may be roughly in the shape of a flat cuboid, and one of the side walls of the housing 110 may be opened to form the aforementioned opening 114 . The blocking part 160 can be arranged parallel to the sidewall of the opening 114 in the reaction compartment 111 , thereby dividing the reaction compartment 111 into a first subspace 111 a communicating with the opening 114 and a second subspace 111 b not communicating with the opening 114 . Since the cathode part 120 is closed at the opening 114, it also communicates with the first subspace 111a. The anode part 140 is disposed in the second subspace 111b.

With the above-mentioned structure, the cathode part 120 can be directly exposed to the external environment of the housing 110, thereby being easy to contact with the air in the external environment of the housing 110, which improves the contact efficiency between the cathode part 120 and the oxygen in the external air, without Other gas guiding structures are installed to deliver oxygen to the cathode portion 120 .

When energized, the cathode portion 120 is used to consume oxygen through an electrochemical reaction. For example, oxygen in the air can undergo a reduction reaction at the cathode part 120 , namely: O ₂ +2H ₂ O+4e ⁻ →4OH ⁻ . The OH ⁻ produced by the cathode part 120 can undergo an oxidation reaction at the anode part 140 to generate oxygen, namely: 4OH ⁻ →O ₂ +2H ₂ O+4e ⁻ . Oxygen can be exhausted through the exhaust nozzle 112 on the housing 110 .

In some optional embodiments, the barrier part 160 is a porous mesh diaphragm for allowing the electrolyte to pass through and preventing oxygen bubbles from passing through, wherein the oxygen bubbles are formed when the oxygen gas generated by the anode part 140 flows in the electrolyte. That is to say, the first subspace 111 a where the cathode part 120 is located is not completely isolated from the second subspace 111 b where the anode part 140 is located, and the electrolyte can flow freely in the two subspaces.

The inventors found that a large number of tiny oxygen bubbles will be generated during the oxygen evolution process of the anode part 140, and these tiny oxygen bubbles are not easy to burst and aggregate into large bubbles, so they are not easy to be rapidly precipitated from the electrolyte, but will form a white mist with the electrolyte At the same time, some oxygen bubbles will contact the cathode part 120, adhere to the catalytic membrane of the cathode part 120, and enter into the hydrophobic pores, and participate in the electrochemical reaction of the cathode part 120 as reactants In this way, the ability of the cathode part 120 to consume oxygen in the ambient air outside the housing 110 is reduced, and the oxygen consumption ability of the oxygen treatment device 10 is also weakened.

By using the porous mesh film to separate the second subspace 111b where the anode part 140 is located and the first subspace 111a where the cathode part 120 is located, it is possible to prevent oxygen bubbles from diffusing to the first subspace 111a where the cathode part 120 is located, and to avoid Affect the free flow of electrolyte.

The electrolytic solution is an acidic aqueous solution or an alkaline aqueous solution. In some optional embodiments, the pore diameter of the porous mesh film is smaller than the diameter of oxygen bubbles and larger than that of water molecules. For example, the pore diameter of the porous mesh membrane is less than or equal to 1mm, and may be 0.9mm, 0.8mm or 0.7mm.

In some optional embodiments, the anode portion 140 is a nickel mesh. For example, it may be a nickel mesh of 1 to 400 meshes, approximately in the shape of a plate, or in the shape of a flat plate. Adopting nickel mesh as the anode part 140 is conducive to improving the flow rate of ions, for example, the ^OH- or ^HO produced by the cathode part 120 can freely pass through the anode part 140, so that the anode part 140 is easily absorbed by high-concentration ^OH- or HO ² -wrapping, which is beneficial to increase the rate at which the anode portion 140 undergoes electrochemical reactions.

In some optional embodiments, cathode portion 120 has a catalytic membrane. The catalytic membrane is made from the precursor by hot pressing. And the precursor includes carbon-supported silver particles and carbon-supported manganese dioxide particles. Using carbon-supported silver particles and carbon-supported manganese dioxide particles as precursors for hot-pressing treatment, the formed catalytic film contains silver and manganese dioxide as composite catalysts, which can significantly increase the electrochemical reaction rate of the cathode part 120 .

The carbon carrier can be activated carbon. For example, the manganese dioxide catalyst content can be 15%-40% of the active carbon support content, and the silver catalyst content can be 15%-40% of the active carbon support content. In some embodiments, the precursor of the catalytic membrane may further include polytetrafluoroethylene and acetylene black. The precursor is obtained by mixing polytetrafluoroethylene, acetylene black, activated carbon-supported silver, and activated carbon-supported manganese dioxide under preset conditions according to a preset ratio and a preset sequence.

Acetylene black acts as a conductor and can reduce the impedance of the entire catalytic membrane. PTFE is hydrophobic. During the hot-pressing process, polytetrafluoroethylene can form a porous structure, which can allow gas to enter the interior of the cathode part 120 and can prevent electrolyte from penetrating.

In some embodiments, the cathode part 120 may further include a current collecting net and two waterproof and gas-permeable membranes. For example, the current collecting net can be a titanium net or a nickel net, which is arranged on one side of the catalytic membrane. The first waterproof and gas-permeable membrane is arranged between the collecting net and the catalytic membrane, and the second waterproof and breathable membrane is arranged on the side of the collecting net facing away from the catalytic membrane.

FIG. 6 is a schematic exploded view of the oxygen treatment assembly 100 of the oxygen treatment device 10 according to another embodiment of the present invention. In some embodiments, the oxygen treatment assembly 100 may further include a partition 130 and a fixing assembly 150 . Wherein, the separator 130 is disposed in the reaction chamber 111 and is located between the cathode part 120 and the anode part 140 for separating the cathode part 120 and the anode part 140 to prevent short circuit. Specifically, a plurality of protrusions 132 are formed on the side of the separator 130 facing the anode portion 140, the protrusions 132 are in contact with the anode portion 140, and the cathode portion 120 is attached to the side of the separator 130 away from the protrusions 132, so that A preset gap is formed between the cathode part 120 and the anode part 140 to further separate the cathode part 120 from the anode part 140 .

The fixing component 150 can be disposed outside the cathode part 120 and configured to fix the cathode part 120 at the opening 114 of the casing 110 . Specifically, the fixing assembly 150 may further include a metal frame 152 and a support 154 . The metal frame 152 is attached to the outside of the cathode portion 120 . The metal frame 152 is in direct contact with the cathode portion 120 and can act to compress the cathode portion 120 , and the metal frame 152 can also be provided with a cathode power supply terminal 152b of the cathode portion 120 to be connected to an external power source. The supporting member 154 is formed with an insertion slot. When the surrounding portion 152 a of the metal frame 152 enters the insertion slot of the support member 154 , the metal frame 152 can be fixed and positioned by the support member 154 , so that the metal frame 152 presses the cathode portion 120 . An anode power supply terminal 142 is formed on the anode portion 140 . to connect to the power supply.

Fig. 7 is a schematic structural diagram of a refrigerator 1 according to an embodiment of the present invention. The refrigerator 1 may generally include a box body 20 and the oxygen treatment device 10 as in any of the above embodiments. The interior of the box body 20 defines a storage space. The oxygen treatment device 10 is installed on the box body 20 and is used for consuming oxygen in the storage space, or for supplying oxygen to the storage space. For example, there can be multiple storage spaces, the cathode part can be in airflow communication with a certain storage space to reduce the oxygen content in the storage space, and the anode part can be in airflow communication with another storage space to increase the storage space. Oxygen content in the space.

The refrigerator 1 of this embodiment is an electrical device with a low-temperature storage function, including not only a refrigerator 1 in a narrow sense, but also a freezer, a storage cabinet, and other refrigerating and freezing devices. The refrigerator 1 of this embodiment can quickly create a low-oxygen fresh-keeping environment, inhibit the respiration of ingredients such as fruits and vegetables, slow down physiological metabolism, and prolong the fresh-keeping time. It can also quickly create a high-oxygen fresh-keeping environment to provide meat, mushrooms and other ingredients. High oxygen adjusts the fresh-keeping atmosphere.

The oxygen treatment device 10 and the refrigerator 1 with it of the present invention, since the oxygen treatment device 10 is provided with a separation chamber 200 communicating with the exhaust nozzle 112 of the oxygen treatment assembly 100, and the inside of the separation chamber 200 forms an arc-shaped airflow channel, the flow The gas passing through the arc-shaped gas flow channel can realize gas-liquid separation by flowing along the curve. Therefore, the present invention provides an oxygen treatment device 10 with a gas-liquid separation function. The separated liquid stays in the separation chamber 200, thereby being able to Reduce or avoid environmental pollution caused by gas emissions.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

An oxygen treatment device comprising:

An oxygen treatment component configured to process oxygen in its working environment; an exhaust nozzle is provided on the oxygen treatment component, configured to discharge the gas generated when the oxygen treatment component processes oxygen;

The separation chamber communicates with the exhaust nozzle, and forms an arc-shaped airflow channel inside, configured to make the gas flowing through it flow along the curved surface, so as to separate the liquid carried by the gas.
The oxygen treatment plant of claim 1, wherein:

The separation bin is in the shape of a hollow cylinder or a hollow sphere to define the arc-shaped airflow channel.
An oxygen treatment plant according to claim 1 or 2, wherein:

An air inlet and an air outlet are provided on the separation chamber; wherein

The air inlet is located at the top section or the middle section of the separation chamber, and communicates with the exhaust nozzle, and the air outlet is spaced apart from the air inlet, and is configured to discharge air flowing through the separation chamber. Tank gas.
The oxygen treatment plant of claim 3, wherein:

An air duct is arranged in the separation chamber, communicates with the air outlet, extends downward to the bottom section of the separation chamber, and forms a gap with the bottom wall of the separation chamber.
An oxygen treatment plant according to claim 1 or 2, wherein:

The oxygen processing component has a housing, and a reaction chamber is formed inside it, the exhaust nozzle is set on the housing, and a liquid return nozzle communicating with the reaction chamber is also opened on the housing; and

A liquid outlet is opened at the bottom of the separation chamber, which communicates with the liquid return nozzle, and is configured to make the liquid separated by the separation chamber flow back into the reaction chamber.
The oxygen treatment device according to claim 5, further comprising:

The liquid return switch is arranged at the liquid return nozzle and is configured to be activated or closed in a controlled manner, so as to open or close the liquid return nozzle.
The oxygen treatment plant of claim 6, further comprising:

an exhaust shutter disposed at the exhaust nozzle and configured to be controlled to activate or close to open or close the exhaust nozzle; and

The liquid return shutter is configured to be controllably actuated before the exhaust nozzle closes the exhaust nozzle, and is configured to close simultaneously with the exhaust shutter.
The oxygen treatment plant of claim 7, wherein:

The exhaust switch is an electromagnetic switching valve, and has an air inlet port and an air outlet valve port, the air inlet port is connected to the exhaust nozzle, and the air outlet valve port is connected to the air inlet of the separation chamber , and the exhaust shutter is configured to be activated or closed in a controlled manner to open and close the outlet valve port.
An oxygen treatment plant according to any one of claims 1-2, 4, 6-8, wherein

The oxygen treatment assembly also includes:

Cathode part for electrochemical reaction to consume oxygen under the action of electrolysis voltage;

an anode section for performing an electrochemical reaction under the action of an electrolysis voltage to produce oxygen; and

The blocking part is arranged between the anode part and the cathode part, and is used for blocking the anode part and the cathode part, so as to prevent the oxygen gas generated in the anode part from diffusing to the cathode part.
A refrigerator comprising:

An oxygen treatment device as claimed in any one of claims 1-9.