CN218810354U

CN218810354U - Unit combined pressure swing adsorption nitrogen making machine

Info

Publication number: CN218810354U
Application number: CN202223347232.3U
Authority: CN
Inventors: 李丽琴
Original assignee: Suzhou Runmao Energy Saving Technology Engineering Co ltd
Current assignee: Suzhou Runmao Energy Saving Technology Engineering Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-07
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a unit combination formula pressure swing adsorption nitrogen generator relates to nitrogen generator technical field, the utility model discloses an adsorption component and buffer control cabinet, be equipped with PLC automatic control system in the buffer control cabinet, buffer control cabinet's side is provided with buffering transition interface and nitrogen gas blast pipe, adsorption component includes first adsorption tower, second adsorption tower and third adsorption tower, first adsorption tower, all be provided with compressed air intake pipe and nitrogen gas outlet pipe on second adsorption tower and the third adsorption tower, compressed air intake pipe bottom intercommunication has air branch pipe, the symmetry is provided with first pneumatic valve on the air branch pipe, the intercommunication has nitrogen gas branch pipe on the nitrogen gas outlet pipe, the symmetry is provided with the second pneumatic valve on the nitrogen gas branch pipe. The utility model discloses a unit combination formula pressure swing adsorption nitrogen generator through setting up a plurality of control valves, can guarantee stable and high-efficient production, avoids the waste that the productivity is surplus to lead to.

Description

Unit combined pressure swing adsorption nitrogen making machine

Technical Field

The utility model relates to a nitrogen generator technical field, in particular to unit combination formula pressure swing adsorption nitrogen generator.

Background

The pressure swing adsorption type nitrogen making machine adopts a high-quality carbon molecular sieve as an adsorbent, the diffusion rate of oxygen in micropores of the carbon molecular sieve is far greater than that of nitrogen under a certain mechanical effect, and when the adsorption does not reach balance, the nitrogen is enriched in a gas phase to form a finished product of nitrogen. Then the pressure is reduced to normal pressure, the adsorbent desorbs other adsorbed impurities such as oxygen and the like to realize regeneration, two adsorption towers are generally arranged in the system, one tower adsorbs nitrogen and the other tower desorbs and regenerates, thereby forming the combined nitrogen generator.

The working mode of the two-tower nitrogen making machine is mainly that one tower adsorbs the regeneration cycle work of the other tower, and the two-tower nitrogen making machine has a disadvantage that the compressed air amount consumed under different nitrogen gas outputs is different, because the regeneration evacuation is needed every minute, the evacuated air amount is related to the size of a container, so the ratio of the compressed air consumed by nitrogen gas produced when the nitrogen gas output is less under a fixed volume is larger, and waste is generated, therefore, the unit combined pressure swing adsorption nitrogen making machine is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides unit combination formula pressure swing adsorption nitrogen generator, the compressed air volume that consumes under the nitrogen gas output of difference in can effectively solving the background art is different, because of the empty row of need regenerating of per minute, the tolerance of its evacuation is relevant with the container size, so nitrogen gas output is when less the compressed air ratio that output nitrogen gas consumed just more big under fixed volume, will produce extravagant problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme: unit combination formula pressure swing adsorption nitrogen generator, including adsorption component and buffer control cabinet, be equipped with PLC automatic control system in the buffer control cabinet, buffer control cabinet's side is provided with buffering transition interface and nitrogen gas blast pipe, adsorption component includes first adsorption tower, second adsorption tower and third adsorption tower, all be provided with compressed air intake pipe and nitrogen gas outlet pipe on first adsorption tower, second adsorption tower and the third adsorption tower, compressed air intake pipe bottom intercommunication has air branch pipe, the symmetry is provided with first pneumatic valve on the air branch pipe, the intercommunication has nitrogen gas branch pipe on the nitrogen gas outlet pipe, the symmetry is provided with the second pneumatic valve on the nitrogen gas branch pipe, just the compressed air intake pipe of first adsorption tower and the compressed air inlet pipe of nitrogen gas outlet pipe are connected with the compressed air intake pipe of second adsorption tower and the inlet end of nitrogen gas outlet pipe, the compressed air intake pipe of second adsorption tower and the outlet pipe of nitrogen gas outlet pipe are connected, the end of the compressed air intake pipe of nitrogen gas outlet pipe of first adsorption tower and the inlet end of nitrogen gas outlet pipe and the third adsorption tower and the inlet end of outlet pipe are connected, can carry out energy-conserving transition output to nitrogen gas through setting up a plurality of high-efficient control valve, can guarantee the production of stable and lead to the productivity that leads to extravagant.

Preferably, the nitrogen gas supply pipe is provided with a pressure reducing valve and a flowmeter in sequence from bottom to top, so that the nitrogen gas can be conveniently reduced in pressure and the flow can be conveniently observed.

Preferably, an end of the nitrogen gas supply pipe is provided with a switch valve, so that the nitrogen gas can be discharged and controlled.

Preferably, the bottom of the adsorption component and the bottom of the buffer control cabinet are provided with support frames, so that the adsorption component and the buffer control cabinet are supported conveniently.

Preferably, the diameter of the buffer transition interface is three-tenth of the diameter of the cylinder of the adsorption tower assembly, so that the entering flow rate of nitrogen can be reduced.

Preferably, buffering transition interface, nitrogen gas supply pipe, compressed air intake pipe and nitrogen gas outlet pipe all are provided with flange spare, are convenient for connect fixedly.

Preferably, the side of the adsorption component is provided with a control valve, and the control valve is connected with a PLC automatic control system, so that the adsorption component can be controlled conveniently.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, through setting up first adsorption tower, second adsorption tower and third adsorption tower, can be according to the size of demand, select adsorption component's use quantity, the use amount is few, can control one or two adsorption towers and carry out work, when the use amount is many, can control three adsorption tower simultaneous working, realize the accurate control to adsorption component work quantity, save the cost, effectively carry out energy-conserving output, through setting up a plurality of first pneumatic valves and second pneumatic valve, can guarantee stable and high-efficient production, avoid the waste that the productivity is surplus to lead to.

Drawings

FIG. 1 is a schematic view of the overall structure of the unit-combined pressure swing adsorption nitrogen generator of the present invention;

FIG. 2 is a schematic structural view of a buffer control cabinet of the unit-combined pressure swing adsorption nitrogen generator of the present invention;

fig. 3 is a schematic structural diagram of the first adsorption tower of the unit combined pressure swing adsorption nitrogen generator of the present invention.

In the figure: 1. a buffer control cabinet; 2. a buffer transition interface; 3. a nitrogen gas feed pipe; 4. a first adsorption tower; 5. a second adsorption column; 6. a third adsorption column; 7. a compressed air inlet pipe; 8. a nitrogen outlet pipe; 9. an air branch pipe; 10. a first pneumatic valve; 11. a second pneumatic valve; 12. a pressure reducing valve; 13. a flow meter; 14. switching on and off the valve; 15. a support frame; 16. a flange member; 17. a control valve; 18. and a nitrogen branch pipe.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1-3, the utility model discloses a unit combination formula pressure swing adsorption nitrogen generator, including adsorption component and buffer control cabinet 1, be equipped with PLC automatic control system in the buffer control cabinet 1, buffer control cabinet 1's side is provided with buffering transition interface 2 and nitrogen gas induction pipe 3, adsorption component includes first adsorption tower 4, second adsorption tower 5 and third adsorption tower 6, first adsorption tower 4, all be provided with compressed air intake pipe 7 and nitrogen gas outlet pipe 8 on second adsorption tower 5 and the third adsorption tower 6, compressed air intake pipe 7 bottom intercommunication has air branch pipe 9, the symmetry is provided with first pneumatic valve 10 on the air branch pipe 9, the intercommunication has nitrogen gas branch pipe 18 on the nitrogen gas outlet pipe 8, the symmetry is provided with second pneumatic valve 11 on the nitrogen gas branch pipe 18, and the compressed air 7 of first adsorption tower 4 and the compressed air intake pipe 7 of nitrogen gas outlet pipe 8 give vent to anger the end and the compressed air intake pipe 7 of second adsorption tower 5 and the inlet end of nitrogen gas outlet pipe 8 of nitrogen gas outlet pipe are connected, the compressed air intake pipe 7 of second adsorption tower 8 and the compressed air outlet pipe 8 of second adsorption tower and the high-efficient transition control outlet pipe can lead to the waste of the nitrogen gas inlet end of the production and the waste of the buffer control outlet pipe 2, the energy-saving output of the energy-saving control outlet pipe is connected.

The nitrogen gas feed pipe 3 is provided with a pressure reducing valve 12 and a flowmeter 13 from bottom to top in sequence, so that the pressure of nitrogen gas can be reduced and the flow can be observed conveniently.

The end of the nitrogen gas supply pipe 3 is provided with an on-off valve 14, which can control the discharge of nitrogen gas.

The bottom of the adsorption component and the bottom of the buffer control cabinet 1 are provided with a support frame 15, which is convenient for supporting the adsorption component and the buffer control cabinet 1.

The diameter of the buffer transition interface 2 is three-tenth of the diameter of the cylinder of the adsorption tower component, and the entering flow rate of nitrogen can be reduced.

The buffer transition interface 2, the nitrogen gas supply pipe 3, the compressed air inlet pipe 7 and the nitrogen gas outlet pipe 8 are all provided with flange pieces 16, so that the connection and the fixation are convenient.

The side of adsorption component all is provided with control flap 17, and control flap 17 is connected with PLC automatic control system, is convenient for control adsorption component.

Those not described in detail in this specification are well within the skill of the art.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Unit combination formula pressure swing adsorption nitrogen generator, its characterized in that: including adsorption component and buffer control cabinet (1), the side of buffer control cabinet (1) is provided with buffering transition interface (2) and nitrogen gas supply pipe (3), adsorption component includes first adsorption tower (4), second adsorption tower (5) and third adsorption tower (6), all be provided with compressed air intake pipe (7) and nitrogen gas outlet pipe (8) on first adsorption tower (4), second adsorption tower (5) and third adsorption tower (6), compressed air intake pipe (7) bottom intercommunication has air branch pipe (9), the symmetry is provided with first pneumatic valve (10) on air branch pipe (9), the intercommunication has nitrogen gas branch pipe (18) on nitrogen gas outlet pipe (8), the symmetry is provided with second pneumatic valve (11) on nitrogen gas branch pipe (18), just the compressed air intake pipe (7) of first adsorption tower (4) and the compressed air outlet end of nitrogen gas outlet pipe (8) of second adsorption tower (5) are connected with the inlet end of nitrogen gas outlet pipe (7) and nitrogen gas outlet pipe (8), the compressed air intake pipe (7) and compressed air outlet pipe (8) of second adsorption tower (5) are connected with the buffer control cabinet (1), the transition interface of compressed air intake pipe (7) and buffer control cabinet (8) and buffer control cabinet (2) and buffer control cabinet (8) the nitrogen gas inlet end of buffer control tower (2) and buffer control tower (8) of buffer control tower (2) and buffer air outlet pipe (8) are connected with compressed air outlet pipe (8) of compressed air inlet pipe (4) and nitrogen gas outlet pipe (8), compressed air inlet pipe (8) of compressed air inlet pipe (7) of first adsorption tower (4) ) And (4) connecting.

2. The unit-combined pressure swing adsorption nitrogen generator of claim 1, characterized in that: the nitrogen gas feed pipe (3) is sequentially provided with a pressure reducing valve (12) and a flowmeter (13) from bottom to top.

3. The unit combined pressure swing adsorption nitrogen generator of claim 1, wherein: the end part of the nitrogen gas feeding pipe (3) is provided with a switch valve (14).

4. The unit combined pressure swing adsorption nitrogen generator of claim 1, wherein: and a support frame (15) is arranged at the bottom of the adsorption component and the bottom of the buffer control cabinet (1).

5. The unit-combined pressure swing adsorption nitrogen generator of claim 1, characterized in that: the diameter of the buffer transition interface (2) is three tenths of the diameter of the cylinder of the adsorption tower component.

6. The unit-combined pressure swing adsorption nitrogen generator of claim 1, characterized in that: and the buffer transition interface (2), the nitrogen gas feeding pipe (3), the compressed air inlet pipe (7) and the nitrogen gas outlet pipe (8) are all provided with flange pieces (16).

7. The unit combined pressure swing adsorption nitrogen generator of claim 1, wherein: and the side surfaces of the adsorption components are provided with control valves (17).