Oxygen production tower capable of prolonging service life of molecular sieve

Abstract

The utility model relates to the technical field of oxygen production towers, and discloses an oxygen production tower capable of prolonging the service life of a molecular sieve, which comprises a tower main body, a limiting bottom ring fixedly connected with the lower end of the inner side of the tower main body, a filling bin arranged at the top of the limiting bottom ring, and a lower end screen fixedly connected with the middle position of the bottom of the filling bin, the top of the filling bin is connected with a top plate, and the middle of the top of the top plate is connected with an upper-end screen. According to the oxygen production tower capable of prolonging the service life of the molecular sieves, the molecular sieves are respectively filled into the plurality of filling bins, so that even if part of the molecular sieves are pulverized, only the free space in part of the filling bins is increased, and only the molecular sieves in the part of the filling bins are loosened, so that the service life of the molecular sieves is prolonged. And the molecular sieves in other filling bins are not influenced, so that the service lives of most molecular sieves are prolonged, and the oxygen production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen production towers, in particular to an oxygen production tower capable of prolonging the service life of a molecular sieve. Background Art

[0002] With the development of the times, people pay more and more attention to health, and the use of oxygen generators is becoming more and more widespread. At present, oxygen generators use molecular sieve physical adsorption and desorption technology. The molecular sieve is filled in the adsorption tower of the oxygen generator. When pressurized, it can adsorb nitrogen and other gases in the air. The remaining unabsorbed oxygen will be collected and purified to become high-purity oxygen for people to use.

[0003] As in the prior art, the patent with patent authorization announcement number CN203440072U discloses an oxygen generator separation tower, including a separation tower body, an upper cover, and a lower cover. The separation tower body is divided into a packing layer and a buffer layer, and the height ratio of the two is 1:6 to 1:5. The buffer layer is provided with a sponge, and the air inlet pipe at the air inlet end of the separation tower is provided with a drying device. During the operation of the oxygen generator, the gas passing through the air compressor passes through the drying device equipped with anhydrous calcium chloride to absorb water vapor and enter the buffer layer in the separation tower body, thereby reducing the air flow speed and absorbing large dust particles through the sponge to ensure that the air entering the molecular sieve bed is low-speed, dry and clean; the advantage of this oxygen generator separation tower is that the air quality entering the molecular sieve bed in the separation tower is relatively good, which can well protect the activity of the molecular sieve, extend the service life of the molecular sieve, and thus improve the service life of the oxygen generator.

[0004] Although the oxygen generator separation tower in the above patent can well protect the activity of the molecular sieve, since all the molecular sieves in the oxygen generator separation tower are filled in one cavity (that is, all are filled in the packing layer), when part of the molecular sieves are pulverized, the pulverized molecular sieves will increase the free space in the packing layer, causing the molecular sieves to loosen. This results in all the molecular sieves being driven by the gas when the gas flows through the molecular sieves, causing friction between adjacent molecular sieves and accelerating the pulverization speed of the molecular sieves, which will reduce the service life of the molecular sieves and is not conducive to reducing the cost of oxygen production. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides an oxygen production tower which can increase the service life of a molecular sieve, so as to solve the problems raised by the background technology, thereby making the molecular sieve less likely to loosen and having a longer service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oxygen production tower capable of increasing the service life of a molecular sieve, comprising a tower body, wherein a limiting bottom ring is fixedly connected to the lower end of the inner side of the tower body, a filling bin is placed on the top of the limiting bottom ring, a lower sieve is fixedly connected to the middle position of the bottom of the filling bin, a top plate is connected to the top of the filling bin, and an upper sieve is connected to the middle position of the top of the top plate.

[0007] Furthermore, a lifting frame is fixedly connected to the top of the top plate, and a hook hole is provided in the middle of the lifting frame.

[0008] Furthermore, a limiting ring is fixedly connected to the peripheral side of the upper screen, an elastic member is fixedly connected to the top of the upper screen, and the upper end of the elastic member is fixedly connected to the bottom of the lifting frame.

[0009] Furthermore, a fixing stud is fixedly connected to the top of the filling bin, and the upper end of the fixing stud passes through the top plate and is threadedly connected with a nut.

[0010] Furthermore, a plurality of positioning columns are fixedly connected to the inner wall of the tower body, and a plurality of positioning grooves are opened on the side wall of the filling bin, and the positions of the positioning grooves match those of the positioning columns.

[0011] Furthermore, the positioning grooves are distributed at equal intervals.

[0012] Furthermore, the height of the fixing stud is lower than the height of the lifting frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] This oxygen production tower can increase the service life of molecular sieves. The molecular sieves are loaded into multiple filling bins respectively. In this way, even if some of the molecular sieves are powdered, only the free space in some filling bins will increase, and only the molecular sieves inside these filling bins will become loose, which will not affect the molecular sieves in other filling bins, thereby extending the service life of most molecular sieves and helping to reduce the cost of oxygen production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 A cross-sectional view of the utility model as a whole;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0018] Figure 4 It is a cross-sectional view of the main body of the tower of the utility model;

[0019] Figure 5This is a schematic diagram of the structure of the filling bin and the top plate of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the filling bin of the utility model;

[0021] Figure 7 It is a partial cross-sectional view of the top plate of the utility model.

[0022] In the figure: 1. tower body; 2. positioning column; 3. limiting bottom ring; 4. filling bin; 5. positioning groove; 6. lower end screen; 7. fixing stud; 8. top plate; 9. upper end screen; 10. limiting ring; 11. lifting frame; 12. elastic member. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-7 An oxygen production tower capable of improving the service life of a molecular sieve comprises a tower body 1, a limiting bottom ring 3 is fixedly connected to the lower end of the inner side of the tower body 1, a filling bin 4 is placed on the top of the limiting bottom ring 3, a lower sieve 6 is fixedly connected to the middle position of the bottom of the filling bin 4, a top plate 8 is connected to the top of the filling bin 4, and an upper sieve 9 is connected to the middle position of the top of the top plate 8.

[0025] The oxygen production tower of the utility model can increase the service life of the molecular sieve. When producing oxygen, the compressed, cooled and filtered air will enter the interior of the tower body 1 from the bottom of the tower body 1, and then the molecular sieve located inside the filling bin 4 will adsorb gases such as nitrogen in these gases, and only oxygen can pass freely, thereby obtaining high-purity oxygen. Since the molecular sieves are respectively loaded into multiple filling bins 4, even if part of the molecular sieves are powdered, only the free space in part of the filling bins 4 will increase, and only the molecular sieves inside this part of the filling bins 4 will become loose, and will not affect the molecular sieves in other filling bins 4, thereby extending the service life of most of the molecular sieves, which is beneficial to reducing the cost of oxygen production. In addition, the structure of the tower body 1 in the utility model is similar to the structure of an oxygen generator separation tower disclosed in the patent authorization announcement number CN203440072U, so it will not be elaborated here.

[0026] like Figure 5 and Figure 7 As shown, a lifting frame 11 is fixedly connected to the top of the top plate 8 , and a hook hole is opened in the middle of the lifting frame 11 .

[0027] Specifically, it is simpler and more convenient to lift the filling bin 4 and the top plate 8 by pulling the frame 11, and it is convenient to replace the filling bin 4, and the hook hole is also convenient for hanging by a hook.

[0028] like Figure 5 and Figure 7 As shown, a limiting ring 10 is fixedly connected to the circumference of the upper screen 9 , an elastic member 12 is fixedly connected to the top of the upper screen 9 , and the upper end of the elastic member 12 is fixedly connected to the bottom of the lifting frame 11 .

[0029] Specifically, when part of the molecular sieve is pulverized, the elastic member 12 will push the upper screen 9 downward, so that the molecular sieve inside the filling bin 4 is always in a tightly fitted state, reducing the probability of the molecular sieve shaking, and placing the molecular sieves in friction with each other, causing the molecular sieve to pulverize faster.

[0030] like Figure 5 , Figure 6 and Figure 7 As shown, a fixing stud 7 is fixed to the top of the filling bin 4, and the upper end of the fixing stud 7 passes through the top plate 8 and is threadedly connected with a nut.

[0031] Specifically, the top plate 8 is connected and fixed to the filling bin 4 via the fixing studs 7, so that the top plate 8 is relatively simple and convenient to disassemble.

[0032] like Figure 4 , Figure 5 and Figure 6 As shown, the inner wall of the tower body 1 is fixed with a plurality of positioning columns 2, and the side wall of the filling bin 4 is provided with a plurality of positioning grooves 5, which match the positions of the positioning columns 2. The positioning columns 2 restrict the filling bin 4 to prevent the filling bin 4 from rotating inside the tower body 1.

[0033] like Figure 6 As shown, the positioning grooves 5 are evenly distributed. The evenly distributed positioning grooves 5 have a better limiting effect.

[0034] like Figure 5 As shown, the height of the fixing stud 7 is lower than the height of the lifting frame 11. If the height of the fixing stud 7 is greater than the height of the lifting frame 11, the fixing stud 7 will abut against the bottom of the upper filling bin 4, thereby affecting the placement of the filling bin 4.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An oxygen production tower capable of increasing the service life of a molecular sieve, comprising a tower body (1), characterized in that: A limiting bottom ring (3) is fixedly connected to the lower end of the inner side of the tower body (1), a filling bin (4) is placed on the top of the limiting bottom ring (3), a lower screen (6) is fixedly connected to the middle position of the bottom of the filling bin (4), a top plate (8) is connected to the top of the filling bin (4), and an upper screen (9) is connected to the middle position of the top of the top plate (8).

2. The oxygen production tower capable of prolonging the service life of the molecular sieve according to claim 1, characterized in that: A lifting frame (11) is fixedly connected to the top of the top plate (8), and a hook hole is provided in the middle of the lifting frame (11).

3. The oxygen production tower capable of prolonging the service life of the molecular sieve according to claim 2, characterized in that: The circumferential side of the upper screen (9) is fixedly connected to a limiting ring (10), the top of the upper screen (9) is fixedly connected to an elastic member (12), and the upper end of the elastic member (12) is fixedly connected to the bottom of the lifting frame (11).

4. An oxygen production tower capable of prolonging the service life of a molecular sieve according to claim 1, 2 or 3, characterized in that: A fixing stud (7) is fixedly connected to the top of the filling bin (4), and the upper end of the fixing stud (7) passes through the top plate (8) and is threadedly connected with a nut.

5. An oxygen production tower capable of prolonging the service life of a molecular sieve according to claim 1, 2 or 3, characterized in that: The inner wall of the tower body (1) is fixedly connected with a plurality of positioning columns (2), and the side wall of the filling bin (4) is provided with a plurality of positioning grooves (5), and the positions of the positioning grooves (5) match those of the positioning columns (2).

6. The oxygen production tower capable of prolonging the service life of the molecular sieve according to claim 4, characterized in that: The inner wall of the tower body (1) is fixedly connected with a plurality of positioning columns (2), and the side wall of the filling bin (4) is provided with a plurality of positioning grooves (5), and the positions of the positioning grooves (5) match those of the positioning columns (2).

7. The oxygen production tower capable of prolonging the service life of the molecular sieve according to claim 5, characterized in that: The positioning grooves (5) are distributed at equal intervals.

8. An oxygen production tower capable of prolonging the service life of a molecular sieve according to claim 4 or 6, characterized in that: The height of the fixing stud (7) is lower than the height of the lifting frame (11).

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