Oxygen production adsorption tower without considering bed height

Abstract

The utility model discloses an oxygen production adsorption tower without considering the height of a bed layer, which comprises a tower body, a gas inlet is arranged at the bottom of the tower body, and a pore plate I is fixedly arranged in the gas inlet; the sealing head is pressed and covered at the top opening of the tower body in a matched manner, an air outlet is formed in the top of the sealing head, and a circular steel plate is fixedly arranged in the air outlet; the cylinder is fixedly arranged on the inner bottom wall of the tower body, the cylinder is filled with an X molecular sieve, the top opening wall of the cylinder is in sealed connection with the outer ring wall of a second annular pore plate, and the inner ring wall of the second annular pore plate is in sealed connection with the outer side wall of a circular steel plate. According to the device disclosed by the utility model, gas enters the gas inlet cylinder and then is adsorbed by the efficient oxygen production molecular sieve contained in the cylindrical hole cylinder, and the gas in the gas inlet cylinder is not limited by resistance, so that the problem of height of a bed layer of an adsorption tower does not need to be considered.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of oxygen production adsorption towers, in particular to an oxygen production adsorption tower without considering the bed height. Background Art

[0002] Pressure swing adsorption air separation oxygen production was first created in the early 1960s and achieved industrial production in the 1970s. Prior to this, most traditional industrial air separation units used cryogenic distillation (referred to as cryogenic method). Since the 1980s, the development and utilization of zeolite molecular sieves with high adsorption and separation performance such as CaX and LiX and the improvement of process flow have led to the rapid development of pressure swing adsorption air separation technology. Compared with cryogenic air separation units, the pressure swing adsorption process has the characteristics of short start-up time and convenient start-up and shutdown, low energy consumption and low operating cost, high degree of automation and simple maintenance, small footprint and low civil engineering costs. It is more competitive than the cryogenic method in small and medium-scale oxygen production that does not require high-purity oxygen, and is widely used in many fields such as electric furnace steelmaking, non-ferrous metal smelting, glass processing, methanol production, carbon black production, fertilizer gasification, chemical oxidation process, pulp bleaching, sewage treatment, biological fermentation, aquaculture, medical and military.

[0003] At present, bed resistance must be considered when designing an adsorption tower. The higher the adsorption tower, the greater the bed resistance, which is not conducive to equipment production. To reduce the bed resistance, the bed height of the molecular sieve must be limited. To reduce the molecular sieve bed height, the adsorption tower diameter can only be expanded to fill a sufficient amount of molecular sieve, which results in the following two disadvantages:

[0004] 1. Increase the cost of the adsorption tower;

[0005] 2. The enlarged diameter leads to uneven airflow distribution, part of the molecular sieve space cannot be fully utilized, and the molecular sieve is expensive, all of which greatly increase the waste of resources. Utility Model Content

[0006] To this end, the utility model proposes an oxygen production adsorption tower that does not need to consider the bed height to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: an oxygen production adsorption tower without considering the bed height, comprising:

[0008] The tower body has an air inlet at the bottom, and a first orifice plate is fixedly arranged in the air inlet;

[0009] A sealing head, whose matching gland is at the top of the tower body, a gas outlet is arranged at the top of the sealing head, and a circular steel plate is fixedly arranged in the gas outlet;

[0010] A cylinder is fixedly arranged on the inner bottom wall of the tower body. X molecular sieve is filled in the cylinder. The top wall of the cylinder is hermetically connected to the outer wall of the second circular orifice plate, and the inner wall of the second circular orifice plate is hermetically connected to the outer wall of the circular steel plate.

[0011] There are two cylindrical orifice tubes with different inner diameters. The two cylindrical orifice tubes are respectively connected to the inner and outer surfaces of the second circular orifice plate, and a circular steel plate is hermetically connected between the tops of the two cylindrical orifice tubes, so that the two cylindrical orifice tubes and the circular steel plate form an air inlet cylinder together. High-efficiency oxygen-making molecular sieve is filled on both the inner and outer sides of the air inlet cylinder.

[0012] And a pressing mechanism is arranged at the inner top of the tower body, and the pressing mechanism can perform pressing adjustment on the high-efficiency oxygen-making molecular sieve.

[0013] Further, preferably, a stainless steel wire mesh one is fixedly installed on the upper surface of the first orifice plate by bolts one.

[0014] Further, preferably, a cylindrical stainless steel wire mesh is fixedly installed on the inner and outer surfaces of the air inlet cylinder by bolts two.

[0015] Further, preferably, a weight filling material is filled between the outer wall of the cylinder and the inner bottom wall of the tower body.

[0016] Further, preferably, the two cylindrical orifice tubes are coaxially arranged.

[0017] Further, preferably, the pressing mechanism includes

[0018] An angle steel frame is fitted and connected with the air inlet cylinder, and a stainless steel wire mesh two is installed on the bottom surface of the angle steel frame.

[0019] A second orifice plate is fixedly installed in the angle steel frame.

[0020] And a bolt fastening device, there are multiple of them, and each bolt fastening device is connected between the inner top surface of the head and the angle steel frame.

[0021] Further, preferably, the bolt fastening device includes

[0022] A support cylinder, its top end is fixedly connected to the inner top surface of the head.

[0023] A fixed ring is fixedly sleeved on the bottom end of the support cylinder.

[0024] A nut is rotationally connected to the fixed ring by a rotating ring.

[0025] A screw, the top of which is threadedly connected to the nut in a matching manner and can extend into the support cylinder;

[0026] And a U-shaped bolt clamp, which is connected to the bottom end of the screw, and the U-shaped bolt clamp is clamped on the angle steel frame.

[0027] Furthermore, preferably, magnetic balls are mounted on the angle steel frame.

[0028] The present utility model adopts the above technologies and has the following beneficial effects compared with the existing technologies:

[0029] 1. In the device of the present utility model, after the gas enters the intake cylinder, it is adsorbed by the highly efficient oxygen generation molecular sieve contained therein through the cylindrical hole cylinder. The gas is not restricted by resistance in the intake cylinder, so there is no need to consider the problem of the height of the adsorption tower bed layer.

[0030] 2. In the device of the present utility model, one end of the bolt fastening device is fixed on the head, and the other end is connected to the angle steel frame by a U-shaped bolt clamp. By rotating the nut, the lifting of the angle steel frame is controlled to realize the pressing adjustment of the highly efficient oxygen generation molecular sieve, and then the overall adsorption effect of the highly efficient oxygen generation molecular sieve is controlled. Description of the Drawings

[0031] Figure 1 It is a schematic internal structure diagram of an oxygen generation adsorption tower that does not need to consider the bed layer height;

[0032] Figure 2 For Figure 1 The cross-sectional view taken along A-A in

[0033] Figure 3 For Figure 1 The enlarged schematic view of part B in

[0034] Figure 4 It is a schematic structural diagram of the bolt fastening device in an oxygen generation adsorption tower that does not need to consider the bed layer height.

[0035] In the figure: 1, intake port; 2, orifice plate one; 3, stainless steel wire mesh one; 4, bolt one; 5, cylinder; 6, circular orifice plate two; 7, circular steel plate; 8, weight filling material; 9, intake cylinder; 10, highly efficient oxygen generation molecular sieve; 11, cylindrical hole cylinder; 12, circular steel plate; 13, angle steel frame; 14, bolt fastening device; 15, orifice plate two; 16, cylindrical stainless steel wire mesh; 17, head; 141, fixing ring; 142, nut; 143, U-shaped bolt clamp; 144, screw; 145, support cylinder. Detailed Embodiments

[0036] Combined with the drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below.

[0037] Example: Please refer to the attached Figures 1-4 , the present utility model provides a technical solution: an oxygen - making adsorption tower that does not need to consider the bed height, which includes:

[0038] A tower body, at the bottom of which there is an air inlet 1, and a perforated plate one 2 is fixedly arranged in the air inlet 1;

[0039] A head 17, which is press - fitted at the top opening of the tower body. An air outlet is arranged at the top of the head 17, and a circular steel plate 7 is fixedly arranged in the air outlet;

[0040] A cylinder 5, which is fixedly arranged on the inner bottom wall of the tower body. 13X molecular sieve is filled in the cylinder 5. The top - mouth wall of the cylinder 5 is hermetically connected to the outer - ring wall of the circular perforated plate two 6, and the inner - ring wall of the circular perforated plate two 6 is hermetically connected to the outer - side wall of the circular steel plate 7;

[0041] Two cylindrical holes 11 are provided, and the inner diameters of the two cylindrical holes 11 are different. The two cylindrical holes 11 are respectively connected to the inner and outer - ring surfaces of the circular perforated plate two 6, and a circular steel plate 12 is hermetically connected between the tops of the two cylindrical holes 11, so that the two cylindrical holes 11 and the circular steel plate 12 form an air inlet cylinder 9 together. High - efficiency oxygen - making molecular sieve 10 is filled on both the inner and outer sides of the air inlet cylinder 9;

[0042] And a pressing mechanism, which is arranged at the inner top of the tower body, and the pressing mechanism can press and adjust the high - efficiency oxygen - making molecular sieve 10.

[0043] In this embodiment, a stainless - steel wire mesh one 3 is fixedly installed on the upper surface of the perforated plate one 2 by bolts one 4.

[0044] In this embodiment, a cylindrical stainless - steel wire mesh 16 is fixedly installed on the inner and outer surfaces of the air inlet cylinder 9 by bolts two.

[0045] In this embodiment, a counterweight filler 8 is filled between the outer wall of the cylinder 5 and the inner bottom wall of the tower body, and the counterweight filler 8 can be made of cement.

[0046] In this embodiment, the two cylindrical holes 11 are coaxially arranged.

[0047] In this embodiment, the pressing mechanism includes

[0048] An angle - steel frame 13, which is cooperatively inserted with the air inlet cylinder 9. A stainless - steel wire mesh two is installed on the bottom surface of the angle - steel frame 13;

[0049] A perforated plate two 15, which is fixedly installed in the angle - steel frame 13;

[0050] And a bolt fastening device 14, which is provided with a plurality of them, and each bolt fastening device 14 is connected between the inner top surface of the head 17 and the angle - steel frame 13.

[0051] In this embodiment, the bolt fastening device 14 includes

[0052] a support cylinder 145, the top end of which is fixedly connected to the inner top surface of the head 17;

[0053] a fixing ring 141, which is fixedly sleeved on the bottom end of the support cylinder 145;

[0054] a nut 142, which is rotatably connected to the fixing ring 141 by a rotating ring;

[0055] a screw rod 144, the top of which is in threaded connection with the nut 142 and can extend into the support cylinder 145;

[0056] and a U-shaped bolt clamp 143, which is connected to the bottom end of the screw rod 144, and the U-shaped bolt clamp 143 is clamped on the angle steel frame 13.

[0057] In this embodiment, magnetic balls are carried on the angle steel frame 13 for pressing the molecular sieve.

[0058] In specific implementation, after the gas enters the intake cylinder, it is adsorbed by the high-efficiency oxygen-making molecular sieve contained therein through the cylindrical hole cylinder. The gas is not restricted by resistance in the intake cylinder, so there is no need to consider the problem of the adsorption tower bed height. Moreover, one end of the bolt fastening device is fixed to the head, and the other end is connected to the angle steel frame by a U-shaped bolt clamp. By rotating the nut, the lifting of the angle steel frame is controlled to realize the pressing adjustment of the high-efficiency oxygen-making molecular sieve, thereby controlling the overall adsorption effect of the high-efficiency oxygen-making molecular sieve.

[0059] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oxygen production adsorption tower without considering the bed height, characterized in that: It includes: A tower body, the bottom of which is provided with an air inlet (1), and a perforated plate (2) is fixedly provided inside the air inlet (1); A sealing head (17) having a matching gland at the top of the tower body, a gas outlet being arranged at the top of the sealing head (17), and a circular steel plate (7) being fixedly arranged in the gas outlet; A cylinder (5) is fixedly arranged on the inner bottom wall of the tower body, and 13X molecular sieve is filled in the cylinder (5). The top wall of the cylinder (5) is sealedly connected to the outer wall of the annular orifice plate (6), and the inner wall of the annular orifice plate (6) is sealedly connected to the outer wall of the circular steel plate (7); There are two cylindrical hole cylinders (11), and the inner diameters of the two cylindrical hole cylinders (11) are different. The two cylindrical hole cylinders (11) are respectively connected to the inner and outer ring surfaces of the annular hole plate (6), and an annular steel plate (12) is sealed between the tops of the two cylindrical hole cylinders (11), so that the two cylindrical hole cylinders (11) and the annular steel plate (12) are combined to form an air intake cylinder (9), and the inner and outer sides of the air intake cylinder (9) are filled with a high-efficiency oxygen-generating molecular sieve (10); and a pressing mechanism, which is arranged at the inner top of the tower body, and the pressing mechanism can press and adjust the high-efficiency oxygen-producing molecular sieve (10).

2. The oxygen production adsorption tower without considering the bed height according to claim 1, characterized in that: A stainless steel wire mesh (3) is fixedly mounted on the upper surface of the orifice plate (2) by means of bolts (4).

3. The oxygen production adsorption tower without considering the bed height according to claim 1, characterized in that: A cylindrical stainless steel wire mesh (16) is fixedly mounted on the inner and outer surfaces of the air inlet cylinder (9) by means of two bolts.

4. The oxygen production adsorption tower without considering the bed height according to claim 1, characterized in that: A counterweight filler (8) is filled between the outer wall of the cylinder (5) and the inner bottom wall of the tower body.

5. The oxygen production adsorption tower without considering the bed height according to claim 1, characterized in that: The two cylindrical bore tubes (11) are coaxially arranged.

6. The oxygen production adsorption tower without considering the bed height according to claim 1, characterized in that: The clamping mechanism comprises An angle steel frame (13) is connected with the air inlet cylinder (9) and a second stainless steel wire mesh is installed on the bottom surface of the angle steel frame (13); Orifice plate 2 (15), which is fixedly installed in the angle steel frame (13); and a plurality of bolt fastening devices (14), each of which is connected between the inner top surface of the sealing head (17) and the angle steel frame (13).

7. The oxygen production adsorption tower without considering the bed height according to claim 6, characterized in that: The bolt fastening device (14) comprises A support cylinder (145), the top end of which is fixedly connected to the inner top surface of the sealing head (17); A fixing ring (141) fixedly sleeved on the bottom end of the supporting tube (145); A nut (142) rotatably connected to the fixing ring (141) by means of a swivel; A screw rod (144), the top of which is threadably connected to the nut (142) and can extend into the support tube (145); and a U-shaped bolt clamp (143) connected to the bottom end of the screw rod (144), and the U-shaped bolt clamp (143) is clamped on the angle steel frame (13).

8. The oxygen production adsorption tower without considering the bed height according to claim 7, characterized in that: The angle steel frame (13) is supported by a magnetic ball.

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