CN208732620U - A kind of efficient inflatable structure in PSA nitrogen generator - Google Patents
A kind of efficient inflatable structure in PSA nitrogen generator Download PDFInfo
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- CN208732620U CN208732620U CN201821076134.1U CN201821076134U CN208732620U CN 208732620 U CN208732620 U CN 208732620U CN 201821076134 U CN201821076134 U CN 201821076134U CN 208732620 U CN208732620 U CN 208732620U
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Abstract
The utility model relates to a kind of efficient inflatable structure more particularly to a kind of efficient inflatable structures in PSA nitrogen generator.The PSA nitrogen generator is provided with the first adsorption tower and the second adsorption tower placed side by side, the PSA nitrogen generator is additionally provided with nitrogen buffer tank, efficient inflatable structure is provided between first adsorption tower and the second adsorption tower and the nitrogen buffer tank, the efficient inflatable structure is provided with pressure exhaust structure and waste discharge structure.The benificial effect of the utility model is to by the way that efficient inflatable structure is provided with pressure exhaust structure and waste discharge structure and air inlet structure, it can be inflated respectively from the top and bottom of the first adsorption tower and the second adsorption tower, improve the speed of inflation, it is effectively exhausted by exhaust structure simultaneously, the utility model structure novel, it is easy to operate.
Description
Technical field:
The utility model relates to a kind of efficient inflatable structures, are particularly suitable for PSA nitrogen generator.
Background technique:
The chemical property of nitrogen compares torpescence, and very big inertia is shown as under general state, is not easy and other objects
Matter chemically reacts.With the rapid development of industry, nitrogen obtains in fields such as chemical industry, electronics, metallurgy, food, machinery
It is widely applied, China gradually increases the demand of nitrogen.
There are many existing nitrogen preparation method, and wherein PSA nitrogen generator applies relatively broad, PSA full name: Pressure
Swing Adsorption, the Chinese meaning are as follows: pressure-variable adsorption.PSA was a kind of new gas separation, from 70 years end of the sixties
In generation, has just rapidly been developed in foreign countries, and principle is the difference using molecular sieve to gas with various molecule " absorption " performance
And separate admixture of gas, it is using air as raw material, using a kind of high-effect, high selection solid absorbent to nitrogen and oxygen
The performance of selective absorption the nitrogen and oxygen separation in air is come out.
Conventional PSA nitrogen generator technology is relatively mature, but have the defects that it is certain need to improve, traditional PSA system
Nitrogen machine is after double tower is pressed, in the moment for opening the total outlet pneumatic operated valve of double tower, by the anti-check-valves filled on total outlet pipe,
The gas inside nitrogen buffer tank is set to carry out punching press to adsorption tower at a terrific speed, so that adsorption tower internal pressure be made to increase rapidly
To the optimum working pressure of molecular sieve, adsorption tower is made to enter working condition with most fast speed.But in traditional this process, nitrogen
Gas surge tank, which only passes through, carries out return-air pressurising at the gas outlet of adsorption tower, pressurising speed is not fast enough, and adsorption tower internal pressure
Not enough uniformly.The further upward mobility of equipment nitrogen performance is reduced to a certain extent.
Summary of the invention:
The efficient inflatable structure that the technical problem to be solved by the utility model is to provide a kind of in PSA nitrogen generator,
To solve Problems in industry.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions: one kind being used for PSA system
Efficient inflatable structure on nitrogen machine, the PSA nitrogen generator is provided with the first adsorption tower and the second adsorption tower placed side by side, described
PSA nitrogen generator is additionally provided with nitrogen buffer tank, sets between first adsorption tower and the second adsorption tower and the nitrogen buffer tank
It is equipped with efficient inflatable structure, the efficient inflatable structure is provided with pressure exhaust structure and waste discharge structure, the pressure exhaust knot
Structure is provided with the first air outlet valve, and first air outlet valve is Pneumatic angle type shut-off valve, and one end of first air outlet valve is connected to
On the nitrogen buffer tank, the other end of first air outlet valve is connected separately with second shut-off valve one end and third shut-off valve one
End, the other end of second shut-off valve are connected to the top of first adsorption tower, and the other end of the third shut-off valve connects
It is connected to the top of second adsorption tower, connection shut-off valve is provided between second shut-off valve and third shut-off valve, it is described
Flow control valve is additionally provided between first shut-off valve and the second shut-off valve and third shut-off valve, the flow control valve is also in parallel
It is provided with upper one-way valve, is additionally provided with bottom inflatable pipeline on the left of first air outlet valve, on the bottom inflatable pipeline
It is provided with base valve, the base valve is also respectively connected to the 4th shut-off valve and the 5th shut-off valve, and described 4th section
Only valve is also connected to the bottom of first adsorption tower, and the 5th shut-off valve is also connected to the bottom of second adsorption tower.
Preferably, the waste discharge structure setting has the 6th shut-off valve and the 7th shut-off valve, the one of the 6th shut-off valve
End is connected to the bottom of first adsorption tower, and the other end connects waste gas exhaust device, one end connection of the 7th shut-off valve
To the bottom of second adsorption tower, the other end is also connected on waste gas exhaust device.
Preferably, the bottom of the nitrogen buffer tank is provided with sewage draining exit, blowdown valve is additionally provided on the sewage draining exit.
Preferably, the air inlet structure setting has air intake pipe, the air intake pipe is separately connected
To the bottom of first adsorption tower and the second adsorption tower, multiple air inlets are respectively arranged on the air intake pipe
Valve.
Compared with prior art, the benificial effect of the utility model is to by the way that efficient inflatable structure is provided with pressurization row
Depressed structure and waste discharge structure and air inlet structure can be distinguished from the top and bottom of the first adsorption tower and the second adsorption tower
It is inflated, improves the speed of inflation, while being effectively exhausted by exhaust structure, the utility model structure novel,
It is easy to operate.
Detailed description of the invention:
The present invention will be further described with reference to the accompanying drawing.
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the absorption of the first adsorption tower and the second adsorption tower is in the structural schematic diagram that exhaust is desorbed.
Fig. 3 is the first absorption exhaust desorption and the second adsorption tower is in the structural schematic diagram adsorbed.
Specific embodiment:
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:
According to Fig. 1, a kind of efficient inflatable structure in PSA nitrogen generator, the PSA nitrogen generator are provided with side by side
The first adsorption tower 1 and the second adsorption tower 2 placed, the PSA nitrogen generator are additionally provided with nitrogen buffer tank 3, first absorption
Efficient inflatable structure, the efficient inflatable structure setting are provided between tower 1 and the second adsorption tower 2 and the nitrogen buffer tank 3
There are pressure exhaust structure 4 and waste discharge structure 5 and air inlet structure 6.
In order to realize the purpose of pressure exhaust, further, the pressure exhaust structure 4 is provided with the first air outlet valve 401,
First air outlet valve 401 is Pneumatic angle type shut-off valve, and one end of first air outlet valve 401 is connected to the nitrogen buffer tank
On 3, the other end of first air outlet valve 401 is connected separately with 403 one end of 402 one end of the second shut-off valve and third shut-off valve,
The other end of second shut-off valve 402 is connected to the top of first adsorption tower 1, the third shut-off valve 403 it is another
End is connected to the top of second adsorption tower 2, is provided with connection between second shut-off valve 402 and third shut-off valve 403
Shut-off valve 404 is additionally provided with flow control between first air outlet valve 401 and the second shut-off valve 402 and third shut-off valve 403
Valve 405, the flow control valve 405 have also been arranged in parallel upper one-way valve 406, and the left side of first air outlet valve 401 is also set
It is equipped with bottom inflatable pipeline 5, base valve 407 is provided on the bottom inflatable pipeline 5, the base valve 407 is also
It is connected respectively to the 4th shut-off valve 408 and the 5th shut-off valve 409, the 4th shut-off valve 408 is also connected to first absorption
The bottom of tower 1, the 5th shut-off valve 409 are also connected to the bottom of second adsorption tower 2.
In order to realize the purpose of waste discharge, further, the waste discharge structure 5 is provided with the 6th shut-off valve 501 and the 7th section
Only valve 502, one end of the 6th shut-off valve 501 are connected to the bottom of first adsorption tower 1, and the other end connects waste gas exhaust
One end of device 503, the 7th shut-off valve 502 is connected to the bottom of second adsorption tower 2, and the other end is also connected to exhaust gas
On blowdown apparatus 503.
In order to facilitate discharge sewage, further, the bottom of the nitrogen buffer tank 3 is provided with sewage draining exit 301, the row
Blowdown valve 302 is additionally provided on dirty mouth 301.
In order to realize the entrance of air, further, the air inlet structure 6 is provided with air intake pipe, described
Air intake pipe is connected respectively to the bottom of first adsorption tower 1 and the second adsorption tower 2, divides on the air intake pipe
It is not provided with multiple air inlet valves.
The entire motion flow of the utility model is described in detail below:
First have to more clear, the first adsorption tower 1 and the second adsorption tower 2 of PSA nitrogen generator are alternatings when operation
Operation, when the first adsorption tower 1 is in adsorbed state, the second adsorption tower 2 is in exhaust detachment status；When the first adsorption tower
1 in when being vented detachment status, and the second adsorption tower 2 is at adsorbed state, passes through the first adsorption tower 1 and the second adsorption tower 2
Alternating sorbent and desorption, can guarantee that PSA nitrogen generator endlessly provides nitrogen.
Adsorbed state is in the first adsorption tower 1 below, and the second adsorption tower 2 is in the case where being vented detachment status, in detail
The process of thin description this patent.
As shown in Fig. 2, when the first adsorption tower 1 be in adsorbed state, and the second adsorption tower 2 be in be vented detachment status when
It waits, third shut-off valve 403, the 5th shut-off valve 409 and the 6th shut-off valve 501 are in close state, it is not involved in operation, in order to
Clearer description, attached drawing 2 are that third shut-off valve 403, the 5th shut-off valve 409 and the 6th shut-off valve 501 are removed later knot
Structure schematic diagram.
It is first turned on the first air outlet valve 401, nitrogen passes through the first air outlet valve 401 first in nitrogen buffer tank 3, is then divided into
Two-way, since flow control valve 405 is in close state, then wherein nitrogen just passes through upper one-way valve 406 and enters all the way
In second shut-off valve 402, and pass through the top that the second shut-off valve 402 enters the first adsorption tower 1, the first adsorption tower 1 is carried out
Punching press, and being connected to shut-off valve 404 at this time is to be in close state, such nitrogen would not enter in the second adsorption tower 2；Simultaneously
Another way nitrogen is entered in base valve 407 by bottom inflatable pipeline, and enters the by the 4th shut-off valve 408 immediately
The bottom of one adsorption tower 1 is inflated the first adsorption tower 1 by the bottom of the first adsorption tower 1, can thus inhale from first
The bottom and top of attached tower 1 inflating pressure simultaneously, improve volumetric efficiency, while air will enter from air inlet structure 6,
And entered in the first adsorption tower 1 by the 4th shut-off valve 408, adsorption treatment is carried out to air by the first adsorption tower 1.
When the first adsorption tower 1 starts to be adsorbed, the second adsorption tower 2 is initially located in exhaust desorption, opens connection
Shut-off valve 404 and flow control valve 405, the nitrogen at this moment generated in the second adsorption tower 2 will pass through connection shut-off valve 404 and stream
Control valve 405, and nitrogen buffer tank 3 is entered, nitrogen buffer tank 3 is full of by nitrogen first, and then extra gas can lead to
Cross the place that nitrogen buffer tank 3 is transported to setting.
Exhaust detachment status is in the first adsorption tower 1 below, and the case where the second adsorption tower 2 is in adsorbed state, in detail
The process of thin description this patent.
As shown in figure 3, when the first adsorption tower 1 is in exhaust detachment status, and the second adsorption tower 2 is in the feelings of adsorbed state
When condition, the second shut-off valve 402, the 4th shut-off valve 408 and the 7th shut-off valve 502 are in close state, and are not involved in operation, in order to
Enough clearer descriptions, attached drawing 3 be the second shut-off valve 402, the 4th shut-off valve 408 and the 7th shut-off valve 502 are removed it is later
Structural schematic diagram.
It is first turned on the first air outlet valve 401, nitrogen passes through the first air outlet valve 401 first in nitrogen buffer tank 3, is then divided into
Two-way, since flow control valve 405 is in close state, then wherein nitrogen just passes through upper one-way valve 406 and enters all the way
In third shut-off valve 403, and pass through the top that third shut-off valve 403 enters the second adsorption tower 2, the second adsorption tower 2 is carried out
Punching press, and being connected to shut-off valve 404 at this time is to be in close state, such nitrogen would not enter in the first adsorption tower 1；Simultaneously
Another way nitrogen is entered in base valve 407 by bottom inflatable pipeline, and enters the by the 5th shut-off valve 409 immediately
The bottom of two adsorption towers 2 is inflated the second adsorption tower 2, thus can be from the bottom of the second adsorption tower 2 and top simultaneously
Inflating pressure improves volumetric efficiency, while air will enter from air inlet structure 6, is entered by the 5th shut-off valve 409
Into the second adsorption tower 2, adsorption treatment is carried out to air by the second adsorption tower 2.
When the second adsorption tower 2 starts to be adsorbed, the first adsorption tower 1 is initially located in exhaust desorption, opens connection
Shut-off valve 404 and flow control valve 405, the nitrogen at this moment generated in the second adsorption tower 2 will pass through connection shut-off valve 404 and stream
Control valve 405, and nitrogen buffer tank 3 is entered, nitrogen buffer tank 3 is full of by nitrogen first, and then extra gas can lead to
Cross the place that nitrogen buffer tank 3 is transported to setting.
By solving traditional in the bottom and top of the first adsorption tower 1 and the second adsorption tower 2 while inflating pressure
The speed of inflating pressure can be improved, and then improve the service efficiency of equipment from the way of top compression.
It is emphasized that: the above is only the preferred embodiment of the present utility model, not appoints to the utility model
What formal limitation, any simple modification made by the above technical examples according to the technical essence of the present invention, etc.
With variation and modification, it is still within the scope of the technical solutions of the present invention.
Claims (4)
1. a kind of efficient inflatable structure in PSA nitrogen generator, the PSA nitrogen generator is provided with the first absorption placed side by side
Tower (1) and the second adsorption tower (2), the PSA nitrogen generator are additionally provided with nitrogen buffer tank (3), it is characterised in that: described first inhales
Efficient inflatable structure, the efficient inflation are provided between attached tower (1) and the second adsorption tower (2) and the nitrogen buffer tank (3)
Structure setting has pressure exhaust structure (4) and waste discharge structure (5) and air inlet structure (6), the pressure exhaust structure (4)
It is provided with the first air outlet valve (401), first air outlet valve (401) is Pneumatic angle type shut-off valve, first air outlet valve (401)
One end be connected on the nitrogen buffer tank (3), the other end of first air outlet valve (401) is connected separately with the second cut-off
Valve (402) one end and third shut-off valve (403) one end, the other end of second shut-off valve (402) are connected to described first and inhale
The top of attached tower (1), the other end of the third shut-off valve (403) are connected to the top of second adsorption tower (2), and described
Be provided between two shut-off valves (402) and third shut-off valve (403) connection shut-off valve (404), first air outlet valve (401) and
Flow control valve (405), the flow control valve are additionally provided between second shut-off valve (402) and third shut-off valve (403)
(405) it has also been arranged in parallel upper one-way valve (406), has been additionally provided with bottom inflatable pipe on the left of first air outlet valve (401)
Road is provided with base valve (407) on the bottom inflatable pipeline, and the base valve (407) is also respectively connected to
Four shut-off valves (408) and the 5th shut-off valve (409), the 4th shut-off valve (408) are also connected to first adsorption tower (1)
Bottom, the 5th shut-off valve (409) are also connected to the bottom of second adsorption tower (2).
2. the efficient inflatable structure according to claim 1 in PSA nitrogen generator, it is characterised in that: the waste discharge knot
Structure (5) is provided with the 6th shut-off valve (501) and the 7th shut-off valve (502), and one end of the 6th shut-off valve (501) is connected to institute
The bottom of the first adsorption tower (1) is stated, the other end connects waste gas exhaust device (503), and one end of the 7th shut-off valve (502) connects
It is connected to the bottom of second adsorption tower (2), the other end is also connected on waste gas exhaust device (503).
3. the efficient inflatable structure according to claim 1 in PSA nitrogen generator, it is characterised in that: the nitrogen is slow
The bottom for rushing tank (3) is provided with sewage draining exit (301), is additionally provided with blowdown valve (302) on the sewage draining exit (301).
4. the efficient inflatable structure according to claim 1 in PSA nitrogen generator, it is characterised in that: the air into
Depressed structure (6) is provided with air intake pipe, and the air intake pipe is connected respectively to first adsorption tower (1) and second
The bottom of adsorption tower (2) is respectively arranged with multiple air inlet valves on the air intake pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821076134.1U CN208732620U (en) | 2018-07-09 | 2018-07-09 | A kind of efficient inflatable structure in PSA nitrogen generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821076134.1U CN208732620U (en) | 2018-07-09 | 2018-07-09 | A kind of efficient inflatable structure in PSA nitrogen generator |
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| CN208732620U true CN208732620U (en) | 2019-04-12 |
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| CN201821076134.1U Active CN208732620U (en) | 2018-07-09 | 2018-07-09 | A kind of efficient inflatable structure in PSA nitrogen generator |
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