Molecular sieve structure of oxygen generator

Abstract

The utility model provides an oxygen generator molecular sieve structure, and relates to the technical field of oxygen generator molecular sieve structures, the oxygen generator molecular sieve structure comprises an upper cover assembly, a middle frame and a lower cover assembly, the upper cover assembly is fixedly and hermetically connected to one end of the middle frame, the lower cover assembly is fixedly and hermetically connected to the other end of the middle frame, the upper cover assembly is provided with an air inlet and an air outlet, and the middle frame is provided with a zeolite bin and an air supply bin. The zeolite bin and the air supply bin are arranged side by side in parallel, the air inlet is communicated with the zeolite bin, the air outlet is communicated with the air supply bin, and the zeolite bin slows down airflow through the lower cover assembly and is communicated with the air supply bin; according to the molecular sieve structure of the oxygenerator, the overall length of the molecular sieve can be effectively reduced, and meanwhile, air can be fully filtered.

Description

Technical Field

[0001] The invention relates to an oxygen generator molecular sieve structure, and belongs to the technical field of oxygen generator molecular sieve structures. Background Art

[0002] An oxygen concentrator (PSA) is an oxygen production device that uses air as raw material, molecular sieve as adsorbent, and applies the principle of pressure swing adsorption to obtain high-purity oxygen. Due to its simple process flow, high degree of automation, fast gas production, and low energy consumption, it has been widely used in industrial and medical fields.

[0003] Molecular sieve refers to a synthetic hydrated aluminosilicate or natural zeolite with the function of screening molecules. It generates a "surface force" on the solid surface through the molecular attraction. When the fluid flows through, some molecules in the fluid collide with the adsorbent surface due to irregular movement. It is precisely because of this characteristic that it is widely used in oxygen generators.

[0004] The principle of the existing molecular sieve oxygen generator is to adsorb and filter nitrogen in the air to produce oxygen through molecular sieves. Generally, air enters at one end and oxygen exits at the other end. Air passes through the molecular sieve part in a straight line. This structure is relatively narrow and long, and the oxygen exit speed is slow. In addition, the molecular sieve at one end may be saturated while the molecular sieve at the other end may not be fully utilized. Due to the narrow and long space and the fact that the air intake is usually high-pressure airflow, the impact force of the airflow on the molecular sieve particles is uneven. The molecular sieve particles close to the air inlet are easily destroyed by the high-pressure gas, resulting in the inability to achieve its air filtering function.

[0005] Therefore, it is necessary to propose an oxygen concentrator molecular sieve structure to reduce the overall length of the molecular sieve while also being able to fully filter the air. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an oxygen concentrator molecular sieve structure device to reduce the overall length of the molecular sieve while also being able to fully filter the air.

[0007] According to an embodiment of the present invention, a first solution is provided: an oxygen concentrator molecular sieve structure, comprising: an upper cover assembly, a middle frame, and a lower cover assembly, wherein the upper cover assembly is fixed and sealed to one end of the middle frame, and the lower cover assembly is fixed and sealed to the other end of the middle frame, the upper cover assembly is provided with an air inlet and an air outlet, the middle frame is provided with a zeolite bin and an air supply bin, the zeolite bin and the air supply bin are arranged side by side and in parallel, the air inlet is connected to the zeolite bin, the air outlet is connected to the air supply bin, and the zeolite bin is connected to the air supply bin by slowing down the airflow through the lower cover assembly.

[0008] Furthermore, the upper cover assembly includes: a first cover body, a first sealing ring, the first sealing ring is nested in the bottom of the first cover body, the bottom of the first cover body is fixedly connected to one end of the middle frame, the bottom of the first cover body forms a sealed connection with one end of the middle frame through the first sealing ring, and the first cover body respectively covers the zeolite bin and the air supply bin.

[0009] Furthermore, the first cover body is provided with a first embedding groove, and the first sealing ring is received in the first embedding groove.

[0010] Furthermore, the upper cover assembly also includes: a one-way check valve, which is accommodated in the air supply bin, one end of the one-way check valve is connected to and communicated with the air outlet, and the other end of the one-way check valve is communicated with the air supply bin.

[0011] Furthermore, the lower cover assembly includes: a second cover body, a second sealing ring, and a first deceleration valve. The second sealing ring is nested in the top of the second cover body. The top of the second cover body is fixedly connected to the other end of the middle frame. The top of the second cover body forms a sealed connection with the other end of the middle frame through the second sealing ring. The second cover body respectively covers the zeolite bin and the air supply bin. The first deceleration valve is installed in the second sealing ring and is located between the zeolite bin and the air supply bin. The zeolite bin is connected to the air supply bin through the first deceleration valve.

[0012] Furthermore, a second embedding groove is provided on the second cover body, and the second sealing ring is accommodated in the second embedding groove.

[0013] Furthermore, a fixing sleeve is provided on the second sealing ring, and the first deceleration valve is fixedly connected in the fixing sleeve.

[0014] Furthermore, a conducting groove is provided on the second cover body, one end of the conducting groove is connected to the zeolite bin, and the other end of the conducting groove is connected to the air supply bin, and the fixing sleeve is accommodated in the middle of the conducting groove and blocks the conducting groove.

[0015] Furthermore, there are at least two zeolite bins, and the lower cover assembly also includes a second deceleration valve, which is installed in the second sealing ring and located between two adjacent zeolite bins. The two adjacent zeolite bins are connected through the second deceleration valve.

[0016] Furthermore, the lower cover assembly further includes: a pull ring, which is movably connected to the bottom of the second cover body.

[0017] Compared with the existing technology, the technical solution provided by this application has the following unique beneficial effects:

[0018] The utility model adopts an upper cover assembly, a middle frame, and a lower cover assembly to form a whole. The zeolite bin and the air supply bin are arranged side by side in parallel, which shortens the length of the middle frame and thus shortens the overall length of the molecular sieve. Air is taken in through the air inlet connected to the zeolite bin, and air is discharged through the air outlet connected to the air supply bin. The zeolite bin decelerates the air flow through the lower cover assembly and is connected to the air supply bin to slow down the air outlet rate of the zeolite bin, thereby improving the air filtering effect. In summary, the molecular sieve structure of the oxygen concentrator can effectively shorten the overall length of the molecular sieve and can also fully filter the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] in:

[0021] Figure 1 An exploded view of the molecular sieve structure of an oxygen concentrator in one embodiment;

[0022] Figure 2 This is an overall schematic diagram of the molecular sieve structure of an oxygen concentrator in one embodiment;

[0023] Figure 3 This is a schematic diagram of a first cover of a molecular sieve structure of an oxygen concentrator in one embodiment;

[0024] Figure 4 A schematic diagram of a second sealing ring of a molecular sieve structure of an oxygen concentrator in one embodiment;

[0025] Figure 5 A schematic diagram of a second cover of a molecular sieve structure of an oxygen concentrator in one embodiment;

[0026] Figure 6 This is a schematic diagram from another angle of the molecular sieve structure of the oxygen generator in one embodiment.

[0027] Reference numerals:

[0028] 1-upper cover assembly; 11-air inlet; 12-air outlet; 13-first cover body; 131-first embedded groove; 14-first sealing ring; 15-one-way check valve; 2-middle frame; 21-zeolite chamber; 22-air supply chamber; 3-lower cover assembly; 31-second cover body; 311-second embedded groove; 312-conducting groove; 32-second sealing ring; 321-fixing sleeve; 33-first speed reduction valve; 34-second speed reduction valve; 35-pull ring. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0030] like Figure 1-6 As shown, a molecular sieve structure of an oxygen concentrator includes: an upper cover assembly 1, a middle frame 2, and a lower cover assembly 3. The upper cover assembly 1 is fixed and sealed to one end of the middle frame 2, and the lower cover assembly 3 is fixed and sealed to the other end of the middle frame 2. The upper cover assembly 1 is provided with an air inlet 11 and an air outlet 12. The middle frame is provided with a zeolite bin 21 and an air supply bin 22. The zeolite bin 21 and the air supply bin 22 are arranged side by side in parallel. The air inlet 11 is connected to the zeolite bin 21, and the air outlet 12 is connected to the air supply bin 22. The zeolite bin 21 decelerates the airflow through the lower cover assembly 3 and is connected to the air supply bin 22.

[0031] In this embodiment, the middle frame 2 can be made of plastic or metal according to actual test needs. The zeolite bin 21 and the air supply bin 22 are arranged side by side in parallel, which reduces the length of the middle frame 2 and thus reduces the overall length of the molecular sieve. The air enters the zeolite bin 21 through the air inlet 11, and the oxygen after the air is filtered in the zeolite bin 21 enters the air supply bin 22. The air outlet 12 is connected to the air supply bin 22 to discharge air, that is, oxygen flows out of the oxygen machine from the air outlet 12. The zeolite bin 21 decelerates the air flow through the lower cover assembly 3 and is connected to the air supply bin 22 to slow down the air outlet rate of the zeolite bin 21, thereby improving the air filtering effect.

[0032] In summary, the molecular sieve structure of the oxygen concentrator can effectively reduce the overall length of the molecular sieve and can also fully filter the air.

[0033] In this embodiment, the upper cover assembly 1 includes: a first cover body 13, a first sealing ring 14, the air inlet 11 and the air outlet 12 are both arranged on the first cover body 13, the first sealing ring 14 is nested in the bottom of the first cover body 13, the bottom of the first cover body 13 is fixedly connected to one end of the middle frame 2, and the bottom of the first cover body 13 forms a sealed connection with one end of the middle frame 2 through the first sealing ring 14, and the first cover body 13 respectively covers the zeolite bin 21 and the air supply bin 22; during assembly, the first sealing ring 14 is first nested on the first cover body 13, and then the first cover body 13 is fixed to one end of the middle frame 2 by screws. After the fixing is completed, the zeolite bin 21 and the air supply bin 22 cannot be connected through the first cover body 13, and the air can only enter the zeolite bin 21 through the air inlet 11, and the filtered oxygen can only flow out of the outside from the air outlet 12.

[0034] In this embodiment, the first cover body 13 is provided with a first embedding groove 131, and the first sealing ring 14 is accommodated in the first embedding groove 131. The first sealing ring 14 has a specific shape and is mainly used to seal and isolate the zeolite bin 21 from the air supply bin 22. The shape of the first embedding groove 131 is adapted to the first sealing ring 14. During installation, the first sealing ring 14 can be embedded in the first embedding groove 131.

[0035] In this embodiment, the upper cover assembly 1 also includes: a one-way check valve 15, which is housed in the air supply bin 22, one end of the one-way check valve 15 is connected to and communicated with the air outlet 12, and the other end of the one-way check valve 15 is communicated with the air supply bin 22; in order to ensure that external air does not flow back from the air outlet 12 to the air supply bin 22, a one-way check valve 15 is provided to discharge air from the air outlet 12, and the one-way check valve 15 can prevent external air from entering the air supply bin 22 from the air outlet 12, thereby ensuring the purity of oxygen.

[0036] In this embodiment, the lower cover assembly 3 includes: a second cover body 31, a second sealing ring 32, and a first deceleration valve 33. The second sealing ring 32 is nested in the top of the second cover body 31. The top of the second cover body 31 is fixedly connected to the other end of the middle frame 2. The top of the second cover body 31 is sealed with the other end of the middle frame 31 through the second sealing ring 32. The second cover body 31 respectively blocks the zeolite bin 21 and the air supply bin 22. The first deceleration valve 33 is installed in the second sealing ring 32 and is located between the zeolite bin 21 and the air supply bin 22. The zeolite bin 21 and the air supply bin 22 are sealed. 21 is connected to the air supply bin 22 through the first deceleration valve 33; before assembly, the first deceleration valve 33 needs to be installed on the second sealing ring 32 to form an integrated structure. During assembly, the second sealing ring 32 is nested in the top of the second cover body 31, and then the second cover body 31 is fixed to the other end of the middle frame 2 by screws. After the fixation is completed, the zeolite bin 21 and the air supply bin 22 will be connected through the first deceleration valve 33, that is, the filtered oxygen in the zeolite bin 21 will enter the air supply bin 22 through the first deceleration valve 33.

[0037] In this embodiment, a second embedding groove 311 is provided on the second cover body 31, and the second sealing ring 32 is accommodated in the second embedding groove 311; the second sealing ring 32 has a specific shape, which is mainly used to seal and isolate the zeolite bin 21 and the air supply bin 22, and also to adapt to the installation of the first deceleration valve 33. The shape of the second embedding groove 311 is adapted to the second sealing ring 32. During installation, the second sealing ring 32 can be embedded in the second embedding groove 311.

[0038] In this embodiment, a fixing sleeve 321 is provided on the second sealing ring 32, and the first deceleration valve 33 is fixedly connected to the fixing sleeve 321. When installing the first deceleration valve 33, the first deceleration valve 33 can be directly embedded in the fixing sleeve 321 for fixing.

[0039] In this embodiment, a conducting groove 312 is provided on the second cover body 31, one end of the conducting groove 312 is connected to the zeolite bin 21, and the other end of the conducting groove 312 is connected to the air supply bin 22, and the fixing sleeve 321 is accommodated in the middle of the conducting groove 312 and blocks the conducting groove 312; after the second sealing ring 32 is installed, the fixing sleeve 321 is embedded in the middle of the conducting groove 312 and blocks the conducting groove 312, and the oxygen in the zeolite bin 21 will flow into one end of the conducting groove 312, and then flow into the other end of the conducting groove 312 through the first deceleration valve 33, and flow out into the air supply bin 22.

[0040] In this embodiment, there are at least two zeolite bins 21, and the number of air inlets 11 is the same as that of zeolite bins 21. The lower cover assembly 3 also includes a second deceleration valve 34. The second deceleration valve 34 is installed in the second sealing ring 32 and is located between two adjacent zeolite bins 21. The two adjacent zeolite bins 21 are connected through the second deceleration valve 34; the second deceleration valve 34 is also installed on the second sealing ring 32 through the fixing sleeve 321. The setting of the second deceleration valve 34 is to balance the air pressure between adjacent zeolite bins 21, so that the air pressure between adjacent zeolite bins 21 is balanced, avoiding the phenomenon of deformation of the middle frame 2 caused by excessive difference in air pressure.

[0041] In this embodiment, the lower cover assembly 3 also includes: a pull ring 35, which is movably connected to the bottom of the second cover body 31; the pull ring 35 can be connected to the bottom of the second cover body 31 by rotation or sliding. The setting of the pull ring 35 is convenient for pulling out and replacing the utility model. When the utility model is installed in place, the pull ring 35 can be flipped and hidden at the bottom of the second cover body 31. When the utility model needs to be pulled out, the pull ring 35 is flipped 90 degrees and extended, and then the utility model is pulled out by pulling the pull ring 35, which is convenient and quick.

[0042] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above embodiments only express several implementation methods of the present application. The description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of this application. It should be pointed out that for ordinary technicians in this field, without departing from the concept of this application, several variations and improvements can be made, which all fall within the scope of protection of this application.

[0043] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it may be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it may be directly connected to the other component or indirectly connected to the other component. It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0045] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

Claims

1. An oxygen concentrator molecular sieve structure, characterized in that: include: An upper cover assembly, a middle frame, and a lower cover assembly, wherein the upper cover assembly is fixed and sealed to one end of the middle frame, and the lower cover assembly is fixed and sealed to the other end of the middle frame. The upper cover assembly is provided with an air inlet and an air outlet, and the middle frame is provided with a zeolite bin and an air supply bin. The zeolite bin and the air supply bin are arranged side by side and in parallel. The air inlet is communicated with the zeolite bin, and the air outlet is communicated with the air supply bin. The zeolite bin decelerates the airflow through the lower cover assembly and is communicated with the air supply bin. The lower cover assembly includes: a second cover body, a second sealing ring, and a first deceleration valve. The second sealing ring is nested in the top of the second cover body. The top of the second cover body is fixedly connected to the other end of the middle frame. The top of the second cover body forms a sealed connection with the other end of the middle frame through the second sealing ring. The second cover body respectively covers the zeolite bin and the air supply bin. The first deceleration valve is installed in the second sealing ring and is located between the zeolite bin and the air supply bin. The zeolite bin is connected to the air supply bin through the first deceleration valve. There are at least two zeolite bins. The lower cover assembly also includes a second deceleration valve. The second deceleration valve is installed in the second sealing ring and is located between two adjacent zeolite bins. The two adjacent zeolite bins are connected through the second deceleration valve.

2. The molecular sieve structure of the oxygen concentrator according to claim 1, characterized in that: The upper cover assembly includes: a first cover body and a first sealing ring. The first sealing ring is nested in the bottom of the first cover body. The bottom of the first cover body is fixedly connected to one end of the middle frame. The bottom of the first cover body forms a sealed connection with one end of the middle frame through the first sealing ring. The first cover body respectively covers the zeolite bin and the air supply bin.

3. The molecular sieve structure of the oxygen concentrator according to claim 2, characterized in that: The first cover body is provided with a first embedding groove, and the first sealing ring is received in the first embedding groove.

4. The molecular sieve structure of the oxygen concentrator according to claim 2, characterized in that: The upper cover assembly also includes: a one-way check valve, which is accommodated in the air supply bin, one end of the one-way check valve is connected to and communicated with the air outlet, and the other end of the one-way check valve is communicated with the air supply bin.

5. The molecular sieve structure of the oxygen concentrator according to claim 1, characterized in that: The second cover body is provided with a second embedding groove, and the second sealing ring is received in the second embedding groove.

6. The molecular sieve structure of the oxygen concentrator according to claim 1, characterized in that: A fixing sleeve is provided on the second sealing ring, and the first deceleration valve is fixedly connected in the fixing sleeve.

7. The molecular sieve structure of the oxygen concentrator according to claim 6, characterized in that: A conducting groove is provided on the second cover body, one end of the conducting groove is connected to the zeolite bin, and the other end of the conducting groove is connected to the air supply bin. The fixing sleeve is accommodated in the middle of the conducting groove and blocks the conducting groove.

8. The molecular sieve structure of the oxygen concentrator according to claim 1, characterized in that: The lower cover assembly further includes a pull ring movably connected to the bottom of the second cover body.

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