CN221207415U - Large-scale four-tower nitrogen making machine - Google Patents
Large-scale four-tower nitrogen making machine Download PDFInfo
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- CN221207415U CN221207415U CN202323114927.1U CN202323114927U CN221207415U CN 221207415 U CN221207415 U CN 221207415U CN 202323114927 U CN202323114927 U CN 202323114927U CN 221207415 U CN221207415 U CN 221207415U
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 60
- 238000001179 sorption measurement Methods 0.000 claims abstract description 67
- 230000003584 silencer Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002808 molecular sieve Substances 0.000 description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
Abstract
The utility model belongs to the technical field of nitrogen making machines and aims at providing a large four-tower nitrogen making machine, which comprises a base, wherein four adsorption towers are arranged on the base side by side, two adsorption towers on the left side are in a group, two adsorption towers on the right side are in a group, and an upper connecting branch pipe, a middle connecting branch pipe and a lower connecting branch pipe are arranged between each group of adsorption towers; an air outlet pipeline is arranged between the upper connecting branch pipes, and a nitrogen outlet is arranged on the air outlet pipeline; the middle connecting branch pipe is connected with the lower connecting branch pipe through a vertical pipeline, an air inlet pipeline is arranged between the vertical pipelines, and an air inlet is arranged on the air inlet pipeline; the adsorption tower bottom is equipped with air diffuser, and the top is equipped with compresses tightly the cylinder, still be equipped with the control box on the base. The utility model has the characteristics of compact structure, good stability of nitrogen gas production, low working noise and the like, and can be widely applied to the technical field of large-scale pressure swing adsorption nitrogen equipment production.
Description
Technical Field
The utility model belongs to the technical field of pressure swing adsorption nitrogen making machines, and particularly relates to a large four-tower nitrogen making machine.
Background
The PSA pressure swing adsorption nitrogen making machine uses clean compressed air as raw material, adopts two adsorption towers filled with molecular sieve to alternatively work, and utilizes the principle of pressure adsorption and pressure reduction desorption to produce high-purity nitrogen gas. The existing pressure swing adsorption systems mostly adopt two towers of adsorption beds to alternately switch and work, one tower adsorbs one tower for regeneration, and one tower is always in a regeneration state in the process.
At present, the height-to-diameter ratio of an adsorption tower of the existing nitrogen making machine is generally in the range of 1.5-3.0, so that the optimal state of adsorption performance can be achieved. However, with the increase of the diameter of the adsorption tower, the height cannot be increased in an infinite way, and the compressive strength and the hardness of the molecular sieve are important indexes, with the increase of the height of the adsorption tower, the pressure ratio born by the bottom layer on the molecular sieve is larger, so that the pulverization of the molecular sieve is accelerated, the service life of the molecular sieve is shortened, and therefore, the multi-tower nitrogen production equipment is generated on the basis of double towers. The utility model provides a four tower nitrogen making device is introduced to patent application number "201820919531.4", including first tee bend pipe, the both ends gas outlet of first tee bend pipe is connected with two second tee bend pipes, a set of adsorption tower is connected to the gas outlet of every second tee bend pipe, can adsorb nitrogen gas through the adsorption tower, and can be with the absorptive nitrogen gas extraction of adsorption tower through the vacuum pump, thereby prepare, this four tower nitrogen making device prepares simply, and in medium-and small-scale device, the running cost of PSA nitrogen making is lower, prepare and can select to open a set of adsorption tower and open two sets of adsorption towers, make the regulation more convenient, the cost is reduced, the energy saving. As another example, patent application number "202221628175.3" describes an energy-saving four-tower PSA nitrogen making device convenient to switch, including the air buffer tank, the nitrogen making adsorption machine is connected to the air buffer tank, the nitrogen buffer tank is connected to the nitrogen making adsorption machine, the flow detection and the blowdown system are connected to the nitrogen buffer tank, have compact structure, four-tower switch convenient intelligence, produce gas stable and energy-concerving and environment-protective characteristics such as stable, can extensively be used for pressure swing adsorption nitrogen making machine technical field. However, the existing four-tower nitrogen generator mostly adopts multi-pipeline connection control, so that the pipeline structure is complex, and the stability control of nitrogen gas production is not facilitated; in addition, for nitrogen making machines of multi-tower construction, the operating noise tends to be large, requiring effective silencing of the exhaust gases. For this reason, the structure of the existing four-tower nitrogen generator needs to be further improved.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art, provides a large four-tower nitrogen generator, has the characteristics of compact structure, good nitrogen gas production stability, low working noise and the like, and can be widely applied to the technical field of large-scale pressure swing adsorption nitrogen equipment production.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the large four-tower nitrogen generator comprises a base, wherein four adsorption towers are arranged side by side on the base, two adsorption towers on the left side are in a group, two adsorption towers on the right side are in a group, and an upper connecting branch pipe, a middle connecting branch pipe and a lower connecting branch pipe are arranged between each group of adsorption towers; an air outlet pipeline is arranged between the upper connecting branch pipes, and a nitrogen outlet is arranged on the air outlet pipeline; the middle connecting branch pipe is connected with the lower connecting branch pipe through a vertical pipeline, an air inlet pipeline is arranged between the vertical pipelines, and an air inlet is arranged on the air inlet pipeline; the bottom of the adsorption tower is provided with an air diffuser, the air diffuser is connected with an exhaust pipeline, the exhaust pipeline is provided with an exhaust valve, and the tail end of the exhaust pipeline is provided with a vertical silencer; the top of the adsorption tower is provided with a compression cylinder, and the base is also provided with a control box.
As an improvement, the adsorption tower is of an equal volume, and the upper end and the lower end of the adsorption tower are respectively provided with an arc-shaped upper end socket and a lower end socket.
As an improvement, a pressure gauge is arranged in the middle of the adsorption tower, a nameplate fixing frame is arranged below the pressure gauge, and a discharge opening is arranged below the nameplate fixing frame.
As an improvement, the nameplate fixing frame is of a square structure, and the discharge opening is of a detachable circular flange structure.
As an improvement, the bottom of the adsorption tower is provided with fixed support legs, and the fixed support legs are fixed on the base through welding.
As an improvement, symmetrical hoisting rings are arranged on the side face of the upper end socket of the adsorption tower.
As an improvement, the nitrogen outlet and the air inlet are both flange structures and are positioned in the same direction.
As an improvement, the muffler is provided with two vertical structures which are round upwards.
As an improvement, the control box adopts a square vertical structure and is positioned in the middle of the base.
As an improvement, the base is made of high-strength channel steel.
The beneficial effects obtained by the utility model are as follows: the large-scale four-tower nitrogen generator has the characteristics of compact structure, good stability of nitrogen gas production, low working noise and the like; the four tower structures are arranged on the base side by side, and the four tower structures are in a group for completing the cyclic cooperation of adsorption and regeneration, so that the adsorption efficiency and the gas yield are improved, and the volume of the adsorption tower is reduced; by adopting the upper connecting branch pipe, the middle connecting branch pipe and the lower connecting branch pipe which are arranged in parallel, the whole structure of the nitrogen making machine is more compact, and the nitrogen making machine faces to the same nitrogen outlet and air inlet, thereby facilitating clean air access and finished nitrogen extraction; in addition, through adopting two muffler structures up, effectively reduced the operating noise of nitrogen generator, improve on-the-spot operational environment.
Drawings
FIG. 1 is a front view of a large four-tower nitrogen generator of the present utility model;
FIG. 2 is a rear view of a large four-tower nitrogen generator of the present utility model;
FIG. 3 is a top view of a large four-tower nitrogen generator of the present utility model.
In the figure: 1. the device comprises a base, 2, an adsorption tower, 3, an upper connecting branch pipe, 4, a middle connecting branch pipe, 5, a lower connecting branch pipe, 6, an air outlet pipeline, 7, a nitrogen outlet, 8, a vertical pipeline, 9, an air inlet pipeline, 10, an air inlet, 11, an air diffuser, 12, an exhaust pipeline, 13, an exhaust valve, 14, a vertical silencer, 15, a compression cylinder, 16, a control box, 17, a pressure gauge, 18, a nameplate fixing frame, 19, a discharge opening, 20, fixing support legs, 21 and a lifting ring.
Detailed Description
Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the large-scale four-tower nitrogen generator of the embodiment comprises a base 1, wherein four adsorption towers 2 are arranged side by side on the base 1, two groups are arranged on the left side of the adsorption towers 2, two groups are arranged on the right side of the adsorption towers 2, and an upper connecting branch pipe 3, a middle connecting branch pipe 4 and a lower connecting branch pipe 5 are arranged between each group of adsorption towers; an air outlet pipeline 6 is arranged between the upper connecting branch pipes 3, and a nitrogen outlet 7 is arranged on the air outlet pipeline 6; the middle connecting branch pipe 4 and the lower connecting branch pipe 5 are connected through vertical pipelines 8, an air inlet pipeline 9 is arranged between the vertical pipelines 8, and an air inlet 10 is arranged on the air inlet pipeline 9; the bottom of the adsorption tower 2 is provided with an air diffuser 11, the air diffuser 11 is connected with an exhaust pipeline 12, the exhaust pipeline 12 is provided with an exhaust valve 13, and the tail end of the exhaust pipeline is provided with a vertical silencer 14; the top of the adsorption tower 2 is provided with a compression cylinder 15, the base 1 is also provided with a control box 16, the control box 16 adopts a square vertical structure and is positioned in the middle of the base 1, and specifically, the control box 16, the nitrogen outlet 7 and the air inlet 10 are arranged in a front-back opposite mode.
Further, the adsorption tower 2 has an equal volume, and an upper end socket and a lower end socket which are arc-shaped are arranged at the upper end and the lower end of the adsorption tower; specifically, the upper end enclosure and the lower end enclosure are fixed on the upper section and the lower section of the adsorption tower through full welding, and the lower end enclosure is provided with an iron wire net; specifically, the diameter of the adsorption tower 2 is 1.0-1.5 meters.
Further, a pressure gauge 17 is arranged in the middle of the adsorption tower 2, a nameplate fixing frame 18 is arranged below the pressure gauge 17, and a discharge opening 19 is arranged below the nameplate fixing frame 18; specifically, the nameplate fixing frame 18 has a square structure, the discharge opening 19 has a detachable circular flange structure, and the discharge opening 19 is positioned below the front surface of the adsorption tower 2, so that the replacement of the internal molecular sieve is facilitated through the discharge opening 19.
Further, a fixing support leg 20 is arranged at the bottom of the adsorption tower 2, and the fixing support leg 20 is fixed on the base 1 through welding; specifically, the three fixing support legs 20 are symmetrically and uniformly arranged, so that the adsorption tower is stably fixed on the base; furthermore, the side surface of the upper end enclosure of the adsorption tower 2 is provided with symmetrical lifting rings 21, and lifting round holes are formed in the lifting rings 21, so that the adsorption tower is conveniently lifted.
Further, the nitrogen outlet 7 and the air inlet 10 are both flange structures and are positioned in the same direction; specifically, the nitrogen outlet 7 is located above, and the air inlet 10 is located below, so that clean air is conveniently connected to the nitrogen outlet and finished nitrogen is conveniently led out; specifically, the nitrogen outlet 7 is connected with a nitrogen gas pipeline, and a flowmeter and a nitrogen purity detector are arranged on the nitrogen gas pipeline; the air inlet 10 is connected with a front-end air inlet pipeline, and introduces filtered and dried clean air into the adsorption tower.
Further, the two silencers 14 are provided, and are of an upward circular vertical structure, so that the silencer of the vertical structure has a better silencing effect, and the occupied area of the base is saved.
Further, the base 1 is made of high-strength channel steel, is formed by welding and connecting, ensures that the base 1 has better supporting strength and is more stable when the nitrogen making machine works.
Finally, it should be noted that the above list is only specific embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.
Claims (10)
1. The large four-tower nitrogen generator comprises a base (1), and is characterized in that four adsorption towers (2) are arranged on the base (1) side by side, two adsorption towers (2) are arranged in a group on the left, two adsorption towers are arranged on the right, and an upper connecting branch pipe (3), a middle connecting branch pipe (4) and a lower connecting branch pipe (5) are arranged between each group of adsorption towers; an air outlet pipeline (6) is arranged between the upper connecting branch pipes (3), and a nitrogen outlet (7) is arranged on the air outlet pipeline (6); the middle connecting branch pipe (4) is connected with the lower connecting branch pipe (5) through vertical pipelines (8), an air inlet pipeline (9) is arranged between the vertical pipelines (8), and an air inlet (10) is arranged on the air inlet pipeline (9); an air diffuser (11) is arranged at the bottom of the adsorption tower (2), the air diffuser (11) is connected with an exhaust pipeline (12), an exhaust valve (13) is arranged on the exhaust pipeline (12), and a vertical silencer (14) is arranged at the tail end of the exhaust pipeline; the top of the adsorption tower (2) is provided with a compression cylinder (15), and the base (1) is also provided with a control box (16).
2. The large-scale four-tower nitrogen generator according to claim 1, wherein the adsorption tower (2) has an equal volume, and the upper end and the lower end are provided with an arc-shaped upper end socket and a lower end socket.
3. The large-scale four-tower nitrogen generator according to claim 2, wherein a pressure gauge (17) is arranged in the middle of the adsorption tower (2), a nameplate fixing frame (18) is arranged below the pressure gauge (17), and a discharge opening (19) is arranged below the nameplate fixing frame (18).
4. A large four-tower nitrogen generator according to claim 3, wherein the nameplate mounting bracket (18) is of square configuration and the discharge opening (19) is of detachable circular flange configuration.
5. The large four-tower nitrogen generator according to claim 2, wherein the bottom of the adsorption tower (2) is provided with fixing support legs (20), and the fixing support legs (20) are fixed on the base (1) through welding.
6. The large-scale four-tower nitrogen generator according to claim 5, wherein symmetrical hoisting rings (21) are arranged on the side surface of the upper end enclosure of the adsorption tower (2).
7. The large four-tower nitrogen generator according to claim 1, wherein the nitrogen outlet (7) and the air inlet (10) are flange structures and are located in the same direction.
8. The large four-tower nitrogen generator according to claim 1, wherein the muffler (14) is provided with two in total and is of an upward circular vertical structure.
9. The large four-tower nitrogen generator according to claim 1, wherein the control box (16) adopts a square vertical structure and is positioned in the middle of the base (1).
10. The large four-tower nitrogen generator according to claim 9, wherein the base (1) is made of high-strength channel steel.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221207415U true CN221207415U (en) | 2024-06-25 |
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