Gas separation module, refrigerator and air conditioning device

Abstract

The utility model discloses a gas separation module, a refrigerator and an air conditioning device, a plurality of hollow fiber membrane bundles are uniformly arranged to support an air conditioning membrane group, and then the air conditioning membrane group is arranged in a membrane shell to be inserted into an air extraction opening; therefore, air flow which is generated during operation of the fan and passes through the air adjusting membrane group can be in full contact with each hollow fiber membrane tube in the hollow fiber membrane bundle, the separation area is increased, air enters each hollow fiber membrane tube and then is extracted through the extraction opening, more effective air separation is realized under the condition of small structural size, and the separation effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a gas separation module, a refrigerator and an air conditioning device. BACKGROUND

[0002] The main function of a refrigerator is to slow down the spoilage process of food by reducing the temperature, thereby prolonging the freshness and shelf life of food.

[0003] On the one hand, for some fresh vegetables and fruits, a proper amount of oxygen is necessary because they are still undergoing respiration. Proper oxygen levels can help maintain the life activities of these products and slow down the aging process. However, too high an oxygen concentration can accelerate the oxidation reaction of certain foods, leading to a decrease in quality. Therefore, it is necessary to adjust the oxygen level in the refrigerator to make it more suitable for storing specific types of fresh agricultural products. On the other hand, for many processed foods, meat, fish, and cut fruits and vegetables, reducing the oxygen content is very beneficial because it can slow down the oxidation process, thereby reducing problems such as discoloration, flavor change, and fatty acid rancidity. In addition, a low-oxygen environment can also inhibit the growth of aerobic bacteria and mold.

[0004] Currently, refrigerators usually use gas separation membrane oxygen control technology, which is usually a flat membrane structure combined with a vacuum pump. Therefore, the structure is limited by the size of the module, resulting in a small membrane area and poor gas separation effect. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a gas separation module, a refrigerator and an air conditioning device, which realizes more effective gas separation in a small structure size and improves the separation effect.

[0006] Embodiments of the present application can be implemented as follows:

[0007] In a first aspect, the utility model provides a gas separation module, comprising a membrane shell, a fan and a gas conditioning membrane group arranged in the interior of the membrane shell;

[0008] The membrane shell is provided with an air extraction port and a plurality of air permeable holes; the gas conditioning membrane group comprises a hollow fiber membrane bundle composed of a plurality of uniformly arranged hollow fiber membrane tubes, wherein one end of the hollow fiber membrane bundle is inserted into the air extraction port;

[0009] The fan is used to form an air flow through the gas conditioning membrane group.

[0010] In an optional embodiment, the fan is fixed on the membrane shell, and the membrane shell is provided with a ventilation window at a region corresponding to the fan, and the fan and the gas conditioning membrane group are both opposite to the ventilation window.

[0011] In an optional embodiment, the wall of the membrane shell has an inwardly recessed stepped region, the stepped region is provided with the ventilation window, the stepped region forms a groove on the outer surface of the membrane shell and a boss on the inner surface of the membrane shell; the fan is fixed in the groove, and the gas modulation membrane group is fixed on the boss.

[0012] In an optional embodiment, the groove forms a limiting frame, and the fan is installed in the limiting frame.

[0013] In an optional embodiment, the gas separation module comprises at least two fans, and the ventilation window corresponds to the fan one by one.

[0014] In an optional embodiment, the positive pressure side of one of the two adjacent fans faces the gas modulation membrane group, and the negative pressure side of the other fan faces the gas modulation membrane group.

[0015] In an optional embodiment, the hollow fiber membrane bundle is trapezoidal, and the long side of the trapezoid is located on the side close to the air outlet.

[0016] In an optional embodiment, the gas modulation membrane group comprises a plurality of hollow fiber membrane bundles, and the portions of the hollow fiber membrane bundles extending into the air outlet are uniformly arranged.

[0017] In an optional embodiment, the membrane shell comprises a bottom shell and an upper cover plate, the side wall of the bottom shell is provided with the air outlet, the gas modulation membrane group is arranged in the bottom shell, and the upper cover plate covers the bottom shell, wherein the side wall of the bottom shell and / or the upper cover plate has a plurality of air permeable holes.

[0018] In an optional embodiment, the plurality of air permeable holes on the upper cover plate are arranged in an array.

[0019] The plurality of air permeable holes on the side wall of the bottom shell are arranged in a circumferential direction of the bottom shell.

[0020] In an optional embodiment, the gas separation module further comprises an air extraction shell, the air extraction shell is sleeved on the portion of the membrane shell provided with the air outlet, the air extraction shell is provided with an air extraction hole for connecting an air extraction pump, and the air extraction hole is in communication with the air outlet.

[0021] In a second aspect, the utility model provides a refrigerator comprising the gas separation module of any one of the foregoing embodiments.

[0022] In a third aspect, the utility model provides an air conditioning device comprising the gas separation module of any one of the foregoing embodiments.

[0023] Compared with the prior art, the embodiments of the present application have the following advantages, for example:

[0024] By uniformly arranging and supporting the modified atmosphere film group by the plurality of hollow fiber membrane bundles, and then setting the modified atmosphere film group in the membrane shell to be inserted into the air extraction port, since the membrane shell is provided with a plurality of air permeable holes, the air flow generated by the operation of the fan can fully contact each hollow fiber membrane tube in the hollow fiber membrane bundle passing through the modified atmosphere film group, increase the separation area, and the gas enters the inside of each hollow fiber membrane tube and then is extracted through the air extraction port, so that more effective gas separation is realized in the case of small structural size, and the separation effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a schematic diagram of the gas separation module of the present application embodiment.

[0027] Figure 2 It is Figure 1 one of the exploded views.

[0028] Figure 3 It is Figure 1 the second of the exploded views.

[0029] Figure 4 It is Figure 1 the third of the exploded views.

[0030] Figure legend: 10-membrane shell; 11-bottom shell; 111-air extraction port; 112-first buckle; 113-extended section; 114-step area; 115-ventilation window; 116- boss; 117-groove; 118-limiting frame; 12-upper cover plate; 121-second buckle; 13-air permeable hole; 20-modified atmosphere film group; 30-air extraction shell; 31-air extraction hole. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present application embodiments clearer, the technical solutions in the present application embodiments will be described clearly and completely below in combination with the drawings in the present application embodiments. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the present application embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the application without creative labor are within the scope of protection of the application.

[0033] It should be noted that similar reference numbers and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0034] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are merely for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical", "overhanging", and the like do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0036] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "linked" should be broadly understood, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0037] Some embodiments of the application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0038] Reference Figures 1 to 4The embodiment of the present application discloses a gas separation module, which can be applied to a refrigerator oxygen removal or other equipment needing oxygen control (oxygen removal or oxygen increase). The gas separation module mainly comprises a membrane shell 10, a fan, and a gas conditioning membrane group 20 arranged in the interior of the membrane shell 10. The membrane shell 10 is provided with an air outlet 111 and a plurality of air permeation holes 13, so as to present a hollow structure. The gas conditioning membrane group 20 comprises a hollow fiber membrane bundle, which is composed of a plurality of uniformly arranged hollow fiber membrane tubes. One end of the hollow fiber membrane bundle is inserted into the air outlet 111. The gas conditioning membrane group 20 comprises a plurality of uniformly arranged hollow fiber membrane bundles. The fan is used to form an air flow passing through the gas conditioning membrane group 20.

[0039] In this way, by uniformly arranging a plurality of hollow fiber membrane bundles to support the gas conditioning membrane group 20, and then arranging the gas conditioning membrane group 20 in the interior of the membrane shell 10 to be inserted into the air outlet 111, since the membrane shell 10 is provided with a plurality of air permeation holes, the air flow generated by the fan when the fan is running can fully contact each hollow fiber membrane tube in the hollow fiber membrane bundle, the separation area is increased, the gas enters the interior of each hollow fiber membrane tube, and then is drawn away through the air outlet 111, so that more effective gas separation is realized in the case of small structure size, and the separation effect is improved.

[0040] In detail, the membrane shell 10 is roughly in the shape of a cuboid. The membrane shell 10 comprises a bottom shell 11 and an upper cover plate 12. The side wall of the bottom shell 11 is provided with the air outlet 111. The gas conditioning membrane group 20 is arranged in the bottom shell 11. The side wall of the bottom shell 11 and the upper cover plate 12 can be connected by buckling. That is, a plurality of first buckles 112 are arranged on the inner side of the side wall of the bottom shell 11. A plurality of second buckles 121 are arranged on the edge of the upper cover plate 12. The corresponding first buckles 112 and second buckles 121 are buckled one by one to realize the connection of the upper cover plate 12 and the bottom shell 11, so that the upper cover plate 12 covers the top opening of the bottom shell 11. The side wall of the bottom shell 11 and / or the upper cover plate 12 are provided with a plurality of air permeation holes 13. Specifically, the plurality of air permeation holes 13 on the upper cover plate 12 are arranged in an array. The plurality of air permeation holes 13 on the side wall of the bottom shell 11 are arranged along the circumference of the bottom shell 11. When the fan is running, the air outside can enter the bottom shell 11 through the air permeation holes 13 to improve the separation effect.

[0041] The gas separation module further comprises an air outlet shell 30, which is sleeved on the part of the membrane shell 10 provided with the air outlet 111. That is, the part of the side wall of the bottom shell 11 provided with the air outlet 111 is extended outward to form an extension segment 113. The air outlet shell 30 is sleeved outside the extension segment 113. The air outlet shell 30 is provided with an air outlet hole 31 for connecting an air outlet pump. The air outlet hole 31 is communicated with the air outlet 111 to realize the separation of the oxygen-enriched gas.

[0042] In order to facilitate the air flow generated by the fan to pass through the air conditioning film group 20 in a large area, further improving the separation efficiency, the fan is fixed on the film shell 10, and the film shell 10 is provided with a ventilation window 115 corresponding to the area of the fan, the fan is opposite to the ventilation window 115, and the ventilation window 115 is opposite to the air conditioning film group 20, that is, the fan and the air conditioning film group 20 are opposite to the ventilation window 115.

[0043] In detail, the wall of the film shell 10 has a step area 114 recessed inward, that is, the bottom wall of the bottom shell 11 has a step area 114 recessed inward, the step area 114 is provided with a ventilation window 115, and the step area 114 forms a groove 117 on the outer surface of the film shell 10 and a boss 116 on the inner surface of the film shell 10; that is, the step area 114 is part of the wall of the film shell 10, the fan is fixed in the groove 117, and the air conditioning film group 20 is fixed on the boss 116. The surface of the boss 116 serves as part of the inner wall of the air outlet 111, so that the overall thickness of the gas separation module is thinner and the volume is smaller.

[0044] Of course, in some embodiments, the fan can also be arranged inside the film shell 10, as long as it can make the air flow pass through the air conditioning film group 20.

[0045] In this embodiment, the hollow fiber membrane bundle is trapezoidal, which is convenient for manufacturing. Specifically, the hollow fiber membrane bundle is composed of a plurality of hollow fiber membrane tubes, the hollow fiber membrane tubes at one end of the hollow fiber membrane bundle are closer together (i.e. the end where the short side of the trapezoid is located), which is convenient for cutting and coating with adhesive for sealing during manufacturing to prevent the end from forming a gas path communicating with the outside world; on the other hand, the hollow fiber membrane tubes at the other end of the hollow fiber membrane bundle are relatively loosely arranged (i.e. the end where the long side of the trapezoid is located), and the long side of the trapezoidal hollow fiber membrane bundle is located on the side close to the air outlet 111, so that the air can contact the membrane wall of each hollow fiber membrane tube, improving the air permeation efficiency and thus improving the air conditioning effect. Of course, except for the above manufacturing requirements, it can also be arranged in a rectangular shape or the like, as long as it is uniformly arranged.

[0046] In this embodiment, the air conditioning film group 20 includes a plurality of hollow fiber membrane bundles, and the part of each hollow fiber membrane bundle extending into the air outlet 111 is uniformly arranged, so that the gas can fully contact the membrane wall during the process of passing from the inside of each hollow fiber membrane tube to the air outlet 111.

[0047] In order to facilitate the positioning and installation of the fan on the film shell 10, the groove 117 forms a limiting frame 118, and the limiting frame 118 is in the form of a closed ring, and the fan is installed in the limiting frame 118.

[0048] In the embodiment, the gas separation module comprises at least two fans, and the ventilation window 115 corresponds to the fan one by one so that the airflow fully contacts the modified atmosphere film group 20.

[0049] Specifically, the positive pressure side of one of the two adjacent fans faces the modified atmosphere film group 20, and the negative pressure side of the other fan faces the modified atmosphere film group 20, so that the two fans can realize local small-range airflow self-circulation, and the separation times and efficiency are improved.

[0050] Of course, in some embodiments, one fan or more than three fans can also be provided, and the number of fans is not limited.

[0051] In addition, the application also discloses a refrigerator comprising the gas separation module of the above-mentioned embodiments. The gas separation module is placed in the cabin (for example, the refrigerator freezing and fresh-keeping cabin) of the device which needs to remove oxygen, the suction port is connected to the external air suction pump, and the fan and the air suction pump are started to suck the oxygen-enriched gas to the outside, so that the oxygen concentration in the cabin can be reduced to achieve fresh-keeping.

[0052] Of course, it can be understood that the gas separation module can also be applied to devices that need to increase oxygen. For example, the application also discloses an air conditioning device comprising the gas separation module of the above-mentioned embodiments, and the air conditioning device comprises air conditioners, air systems, fresh air devices, ducted air conditioners, and other devices that need to increase oxygen. When oxygen needs to be increased, the gas conditioning device is placed outside the cabin, the suction port is connected to the cabin that needs to increase oxygen, so that the fan and the air suction pump can deliver oxygen-enriched gas to the cabin to increase oxygen.

[0053] In summary, the application discloses a gas separation module, a refrigerator and an air conditioning device. A plurality of hollow fiber membrane bundles are uniformly arranged to support the modified atmosphere film group 20, and the modified atmosphere film group 20 is arranged in the membrane shell 10 to be inserted into the suction port 111. Since the membrane shell 10 is provided with a plurality of air permeable holes 13, the airflow generated by the fan when the fan is running can fully contact each hollow fiber membrane tube in the hollow fiber membrane bundle, increase the separation area, and the gas enters the inside of each hollow fiber membrane tube and is then sucked away through the suction port 111, so that more effective gas separation is realized in a small structure size, and the separation effect is improved.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A gas separation module, characterized by, The gas separation module comprises a membrane shell (10), a fan, and a gas modulation membrane group (20) arranged inside the membrane shell (10); The membrane shell (10) is provided with an air outlet (111) and a plurality of air holes (13); The gas modulation membrane group (20) comprises a hollow fiber membrane bundle composed of a plurality of uniformly arranged hollow fiber membrane tubes, wherein one end of the hollow fiber membrane bundle is inserted into the air outlet (111); The fan is used to form an air flow through the gas modulation membrane group (20).

2. The gas separation module of claim 1, wherein, The fan is fixed on the membrane shell (10), and the membrane shell (10) is provided with a ventilation window (115) at a region corresponding to the fan; the fan and the gas modulation membrane group (20) are both opposite to the ventilation window (115).

3. The gas separation module of claim 2, wherein, The wall of the membrane shell (10) has an inwardly recessed step region (114), and the step region (114) is provided with the ventilation window (115); the step region (114) forms a groove (117) on the outer surface of the membrane shell (10) and a boss (116) on the inner surface of the membrane shell (10); the fan is fixed in the groove (117), and the gas modulation membrane group (20) is fixed on the boss (116).

4. The gas separation module of claim 3, wherein, The groove (117) forms a limiting frame (118), and the fan is installed in the limiting frame (118).

5. The gas separation module of claim 2, wherein, The gas separation module comprises at least two fans, and the ventilation window (115) corresponds to the fan one by one.

6. The gas separation module of claim 5, wherein, One of the two adjacent fans has a positive pressure side facing the gas modulation membrane group (20), and the other fan has a negative pressure side facing the gas modulation membrane group (20).

7. The gas separation module of claim 1, wherein, The hollow fiber membrane bundle is in a trapezoidal shape, and the long side of the trapezoidal shape is located on the side close to the air outlet (111).

8. The gas separation module of claim 1, wherein, The gas modulation membrane group (20) comprises a plurality of hollow fiber membrane bundles, and the portions of the hollow fiber membrane bundles inserted into the air outlet (111) are uniformly arranged.

9. The gas separation module of claim 1, wherein, The membrane shell (10) comprises a bottom shell (11) and an upper cover plate (12); the sidewall of the bottom shell (11) is provided with the air outlet (111); the gas modulation membrane group (20) is arranged in the bottom shell (11); and the upper cover plate (12) covers the bottom shell (11); wherein the sidewall of the bottom shell (11) and / or the upper cover plate (12) is provided with a plurality of air holes (13).

10. The gas separation module of claim 9, wherein, The plurality of air holes (13) on the upper cover plate (12) are arranged in an array; The plurality of air holes (13) on the sidewall of the bottom shell (11) are arranged in a circumferential direction of the bottom shell (11).

11. The gas separation module of claim 1, wherein, The gas separation module further comprises an air extraction shell (30) sleeved on the portion of the membrane shell (10) provided with the air outlet (111); the air extraction shell (30) is provided with an air extraction hole (31) for connecting an air extraction pump; and the air extraction hole (31) is in communication with the air outlet (111).

12. A refrigerator characterized by comprising: The gas separation module comprises the gas separation module according to any one of claims 1-11.

13. An air conditioning device characterized by comprising: The gas separation module comprises the gas separation module according to any one of claims 1-11.

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