Nitrogen making machine adsorption tower with good internal supporting performance

Abstract

The utility model discloses a nitrogen making machine adsorption tower with good internal supporting performance, which is characterized in that an arc-shaped arched pore plate is arranged at the bottom of a tower body, a supporting bulge is arranged on the lower surface of the arc-shaped arched pore plate, a bottom cover is connected to the bottom of the tower body through a flange, an air inlet is formed in the center of the bottom cover, and a plurality of sleeve connecting seats are arranged in the bottom cover; the positions of the sleeve connecting bases correspond to the positions of the supporting protrusions one to one, the sleeve connecting bases are connected with the bottoms of the supporting columns and fastened through bolts, the supporting columns further penetrate through the through holes of the second pore plate and are supported on the lower surfaces of the corresponding supporting protrusions, the supporting columns are further provided with supporting plates, and the supporting plates are supported on the lower surface of the second pore plate; the molecular sieve tower is reasonable in structure, the arc-shaped arched pore plate is supported by the top end of the supporting column, so that the arc-shaped arched pore plate can have good supporting performance and is not prone to deformation when the tower body is filled with molecular sieves and compressed through the air cylinder and the pressing plate, and the supporting performance of the bottom of the tower body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen making equipment, in particular to an adsorption tower of a nitrogen making machine with good internal support. Background Art

[0002] Nitrogen generator refers to a device that uses air as raw material and uses physical methods to separate oxygen and nitrogen in it to obtain nitrogen. Nitrogen generator is a nitrogen production equipment designed and manufactured according to pressure swing adsorption technology. The nitrogen generator uses high-quality imported carbon molecular sieve (CMS) as adsorbent and adopts the principle of pressure swing adsorption (PSA) at room temperature to separate air and produce high-purity nitrogen. Usually two adsorption towers are used in parallel, and the imported pneumatic valve is automatically operated by the imported PLC, and pressurized adsorption and decompression regeneration are performed alternately to complete the separation of nitrogen and oxygen and obtain the required high-purity nitrogen.

[0003] At present, the bottom of the adsorption tower is supported by a perforated plate, and the perforated plate is also filled with desiccant and porcelain balls. When the molecular sieve is filled into the tower body, it is supported by the perforated plate at the bottom, and when the molecular sieve is filled, it is also pressed by the cylinder and the pressure plate at the top. Therefore, the perforated plate at the bottom of the tower body is prone to deformation, thereby affecting the service life. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Utility Model Content

[0004] The utility model aims to provide a nitrogen generator adsorption tower with good internal support. A plurality of sleeve connection seats are arranged inside the bottom cover, and the sleeve connection seats are all equipped with support columns. The top of the support column supports the arc-shaped arched orifice plate, so as to ensure that when the molecular sieve is filled inside the tower body and is compressed by the cylinder and the pressure plate, the arc-shaped arched orifice plate can also have good support and is not easy to deform. At the same time, the support column is also arranged to support the second orifice plate due to the support plate, so as to further improve the support at the second orifice plate, and ensure that the support of the bottom is greatly improved, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nitrogen generator adsorption tower with good internal support, comprising a tower body, a bottom cover and a top cover;

[0006] The bottom of the tower body is provided with an arc-shaped arched orifice plate, the lower surface of the arc-shaped arched orifice plate is provided with a supporting protrusion, one side of the bottom of the tower body is provided with a discharge port, one side of the middle position of the tower body is provided with a pressure-equalizing gas outlet, and the inner end of the pressure-equalizing gas outlet is provided with a filter screen;

[0007] The bottom cover is connected to the bottom of the tower body through a flange, an air inlet is provided at the center of the bottom cover, a first orifice plate is provided at the top of the air inlet, a plurality of sleeve connection seats are provided inside the bottom cover, the positions of the sleeve connection seats correspond to the positions of the support protrusions one by one, the sleeve connection seats are connected to the bottom of the support column and are fastened by bolts, a first connecting ring is provided on the inner wall of the bottom cover, a second orifice plate is installed on the first connecting ring by bolts, a plurality of through holes are opened on the second orifice plate, the support column passes through the through holes of the second orifice plate and is supported on the corresponding lower surfaces of the support protrusions, the support column is also provided with a support plate, and the support plate is supported on the lower surface of the second orifice plate;

[0008] The top cover is connected to the top of the tower body through a flange, a nitrogen outlet is provided on one side of the top cover, a second connecting ring is provided on the inner wall of the top cover, a third orifice plate is installed on the second connecting ring through bolts, a through hole is opened at the center of the third orifice plate, a cylinder is provided at the center of the top cover, the bottom of the cylinder is connected to the through hole of the third orifice plate, a cylinder is provided on the top of the cylinder, a pressure plate is installed on the piston rod of the cylinder, and the pressure plate is movably arranged in the cylinder.

[0009] Preferably, the utility model provides a nitrogen generator adsorption tower with good internal support, wherein a support frame is provided on the lower surface of the bottom cover.

[0010] Preferably, the utility model provides a nitrogen generator adsorption tower with good internal support, wherein the tower body is connected to the bottom cover and the top cover through flanges respectively.

[0011] Preferably, the utility model provides a nitrogen generator adsorption tower with good internal support, wherein the top cover and the outer surface of the tower body are both provided with lifting ears.

[0012] Preferably, the utility model provides a nitrogen generator adsorption tower with good internal support, wherein a feed port is provided on a side bypass of the upper part of the cylinder.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] A plurality of sleeve connection seats are arranged inside the bottom cover, and support columns are installed on the sleeve connection seats. The top of the support column supports the arc-shaped arched orifice plate, so as to ensure that when the molecular sieve is filled inside the tower body and is compressed by the cylinder and the pressure plate, the arc-shaped arched orifice plate can still have good support and is not easy to deform. At the same time, the support column is also arranged to support the second orifice plate due to the support plate, so as to further improve the support at the second orifice plate, and ensure that the support of the bottom is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the arc-shaped arched orifice plate structure;

[0017] Figure 3 is a schematic diagram of the second orifice plate structure;

[0018] Figure 4 Schematic diagram of the third orifice plate structure.

[0019] In the figure: tower body 1, bottom cover 2, top cover 3, arc-shaped arched orifice plate 4, supporting protrusion 5, discharge port 6, pressure-equalizing gas outlet 7, filter screen 8, air inlet 9, first orifice plate 10, sleeve connecting seat 11, support column 12, first connecting ring 13, second orifice plate 14, support plate 15, nitrogen outlet 16, second connecting ring 17, third orifice plate 18, barrel 19, cylinder 20, pressure plate 21, support frame 22, lifting ear 23, feeding port 24. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model;

[0021] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] See also Figure 1-4 , the utility model provides a technical solution: a nitrogen generator adsorption tower with good internal support, comprising a tower body 1, a bottom cover 2 and a top cover 3;

[0023] An arc-shaped arched orifice plate 4 is provided at the bottom of the tower body 1, and a supporting protrusion 5 is provided on the lower surface of the arc-shaped arched orifice plate 4. A discharge port 6 is provided on one side of the bottom of the tower body 1, and a pressure-equalizing gas outlet 7 is provided on one side of the middle position of the tower body 1. A filter screen 8 is provided at the inner end of the pressure-equalizing gas outlet 7, and the filter screen 8 prevents the internal molecular sieve from leaking into the pressure-equalizing gas outlet 7;

[0024] The bottom cover 2 is connected to the bottom of the tower body 1 through a flange, an air inlet 9 is provided at the center of the bottom cover 2, a first orifice plate 10 is provided at the top of the air inlet 9, a plurality of sleeve connection seats 11 are provided inside the bottom cover 2, the position of the sleeve connection seat 11 corresponds to the position of the support protrusion 5 one by one, the sleeve connection seat 11 is connected to the bottom of the support column 12 and is fastened by bolts, a first connecting ring 13 is provided on the inner wall of the bottom cover 2, a second orifice plate 14 is installed on the first connecting ring 13 by bolts, a plurality of through holes are opened in the second orifice plate 14, the support column 12 passes through the through holes of the second orifice plate 14 and is supported on the corresponding lower surface of the support protrusion 5, the support column 12 is also provided with a support plate 15, the support plate 15 is supported on the lower surface of the second orifice plate 14, and a support frame 22 is provided on the lower surface of the bottom cover 2 to achieve overall lifting and support;

[0025] The top cover 3 is connected to the top of the tower body 1 through a flange, and the tower body 1 is connected to the bottom cover 2 and the top cover 3 through flanges, so as to facilitate the connection and disassembly of the bottom cover 2 and the top cover 3 with the tower body 1. The outer surfaces of the top cover 3 and the tower body 1 are provided with lifting ears 23, and the overall lifting is achieved through the lifting ears 23. A nitrogen outlet 16 is provided on one side of the top cover 3, and a second connecting ring 17 is provided on the inner wall of the top cover 3. The second connecting ring 17 is installed with a third orifice plate 18 through bolts, and a through hole 18 is provided at the center of the third orifice plate 18. A cylinder 19 is arranged at the center of the top cover 3, the bottom of the cylinder 19 is connected to the through hole of the third orifice plate 18, a cylinder 20 is arranged at the top of the cylinder 19, a pressure plate 21 is installed on the piston rod of the cylinder 20, and the pressure plate 21 is movably arranged in the cylinder 19, and a feeding port 24 is arranged on one side of the upper part of the cylinder 19, and the feeding port 24 is used to realize the feeding of the molecular sieve. At the same time, through the cooperation with the cylinder 20 and the pressure plate 21, the material can be compacted after the material is added, thereby improving the convenience of the material addition.

[0026] Installation method and principle of use: install the arc-shaped arched orifice plate 4 at the bottom of the tower body 1 by bolts. Connect the bottom of the support column 12 to the sleeve connection seat 11 of the bottom cover 2, install the first orifice plate 10 at the air inlet 9 by bolts, and then place the porcelain ball in the bottom cover 2, then connect the outer periphery of the second orifice plate 14 to the first connecting ring 13 by bolts, and at the same time pass the support column 12 through the through hole of the second orifice plate 14, and support the second orifice plate 14 on the support plate 15 of the support column 12. At this time, the porcelain ball is located in the cavity of the second orifice plate 14 and the bottom cover 2. Then turn the tower body 1 upside down, pour the desiccant on the arc-shaped arched orifice plate 4, connect the bottom cover 2 to the bottom of the tower body 1 through the flange, and then turn the tower body 1 upside down. At this time, the bottom cover 2 is located below the tower body 1, the desiccant is located between the arc-shaped arched orifice plate 4 and the second orifice plate 14, and the top of the support column 12 is supported on the lower surface of the support protrusion 5. The outer periphery of the third orifice plate 18 is connected to the second connecting plate by bolts, and the inner side of the third orifice plate 18 is connected to the bottom of the cylinder 19 by bolts. Finally, the top cover 3 is connected to the top of the tower body 1 through a flange, and then the pressing plate 21 is connected to the piston rod of the cylinder 20, and the pressing plate 21 is inserted into the cylinder 19, and the cylinder 20 is installed at the bottom of the cylinder 19 to complete the installation. Before use, the two adsorption towers are connected to each other through a pipeline to connect the pressure-equalizing gas outlet 7, and then the piston of the cylinder 20 is recovered so that the pressing plate 21 is located above the feeding port 24, and then the molecular sieve is added from the feeding port 24 until the inner cavity of the entire tower body 1 is filled, and then the piston rod of the cylinder 20 drives the pressing plate 21 to press down to compact the molecular sieve. After multiple additions and compactions, it can be used. When in use, the mixed gas of dry nitrogen and oxygen enters the corresponding adsorption tower from the air inlet 9, and the separation of oxygen and nitrogen is completed by using the principle of pressure adsorption and pressure reduction desorption, and through the cooperation of molecular sieves, and finally the nitrogen is collected through the nitrogen outlet 16. The utility model has a reasonable structure, and a plurality of sleeve connecting seats 11 are arranged inside the bottom cover 2, and the sleeve connecting seats 11 are all installed with support columns 12. The top of the support column 12 supports the arc-shaped arched orifice plate 4, so as to ensure that the tower body 1 is filled with molecular sieves and when it is compressed by the cylinder 20 and the pressure plate 21, the arc-shaped arched orifice plate 4 can also have good support and is not easy to deform. At the same time, the support column 12 is also provided with a support plate 15 to support the second orifice plate 14, so as to further improve the support at the second orifice plate 14, and ensure that the support of the bottom is greatly improved.

[0027] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0028] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A nitrogen generator adsorption tower with good internal support, characterized in that: It comprises a tower body (1), a bottom cover (2) and a top cover (3); The bottom of the tower body (1) is provided with an arc-shaped arched orifice plate (4), the lower surface of the arc-shaped arched orifice plate (4) is provided with a supporting protrusion (5), a discharge port (6) is provided on one side of the bottom of the tower body (1), a pressure-equalizing gas outlet (7) is provided on one side of the middle position of the tower body (1), and a filter screen (8) is provided at the inner end of the pressure-equalizing gas outlet (7); The bottom cover (2) is connected to the bottom of the tower body (1) through a flange, an air inlet (9) is provided at the center of the bottom cover (2), a first orifice plate (10) is provided at the top of the air inlet (9), a plurality of sleeve connection seats (11) are provided inside the bottom cover (2), the position of the sleeve connection seats (11) corresponds to the position of the support protrusion (5) one by one, the sleeve connection seats (11) are connected to the bottom of the support column (12) and are fastened by bolts, a first connecting ring (13) is provided on the inner wall of the bottom cover (2), a second orifice plate (14) is installed on the first connecting ring (13) by bolts, the second orifice plate (14) is provided with a plurality of through holes, the support column (12) passes through the through holes of the second orifice plate (14) and is supported on the lower surface of the corresponding support protrusion (5), the support column (12) is also provided with a support plate (15), and the support plate (15) is supported on the lower surface of the second orifice plate (14); The top cover (3) is connected to the top of the tower body (1) through a flange, a nitrogen outlet (16) is provided on one side of the top cover (3), a second connecting ring (17) is provided on the inner wall of the top cover (3), a third orifice plate (18) is installed on the second connecting ring (17) through bolts, a through hole is opened at the center of the third orifice plate (18), a cylinder (19) is provided at the center of the top cover (3), the bottom of the cylinder (19) is connected to the through hole of the third orifice plate (18), a cylinder (20) is provided at the top end of the cylinder (19), a pressure plate (21) is installed on the piston rod of the cylinder (20), and the pressure plate (21) is movably arranged in the cylinder (19).

2. A nitrogen generator adsorption tower with good internal support according to claim 1, characterized in that: A support frame (22) is provided on the lower surface of the bottom cover (2).

3. The nitrogen generator adsorption tower with good internal support according to claim 1, characterized in that: The tower body (1) is connected to the bottom cover (2) and the top cover (3) respectively through flanges.

4. The nitrogen generator adsorption tower with good internal support according to claim 1, characterized in that: The top cover (3) and the outer surfaces of the tower body (1) are both provided with lifting ears (23).

5. The nitrogen generator adsorption tower with good internal support according to claim 1, characterized in that: A feed port (24) is provided on one side of the upper portion of the cylinder (19).

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