CN107973279A - A kind of single column air separating type nitrogen gas generating system and method - Google Patents
A kind of single column air separating type nitrogen gas generating system and method Download PDFInfo
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- CN107973279A CN107973279A CN201810011360.XA CN201810011360A CN107973279A CN 107973279 A CN107973279 A CN 107973279A CN 201810011360 A CN201810011360 A CN 201810011360A CN 107973279 A CN107973279 A CN 107973279A
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- absorber
- nitrogen
- oxygen
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 163
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910001873 dinitrogen Inorganic materials 0.000 title claims abstract description 19
- 239000006096 absorbing agent Substances 0.000 claims abstract description 78
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 72
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 57
- 239000001301 oxygen Substances 0.000 claims abstract description 57
- 238000001179 sorption measurement Methods 0.000 claims abstract description 54
- 239000002250 absorbent Substances 0.000 claims abstract description 24
- 230000002745 absorbent Effects 0.000 claims abstract description 24
- 239000003513 alkali Substances 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 40
- 238000003860 storage Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 239000003463 adsorbent Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/045—Physical processing only by adsorption in solids
- C01B21/0455—Physical processing only by adsorption in solids characterised by the adsorbent
- C01B21/0461—Carbon based materials
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of single column air separating type nitrogen gas generating system and method, including a kind of single column air separating type nitrogen gas generating system, including air compressor machine, drier, alkali cleaning pond, air blower, oil expeller, single column formula absorber, nitrogen buffer tank, wherein air compressor machine, oil expeller, single column formula absorber and nitrogen buffer tank are sequentially connected, and the single column formula absorber includes absorber outer tank body and absorbent core；The sealed shell of tank for including setting changeable adsorption head around one of the absorbent core；Changeable adsorption head in the absorbent core is divided into two groups, and two groups of changeable adsorption heads work alternatively；System that employs a N2 adsorption device processed, after the changeable adsorption head of side is filled oxygen, it is automatically converted into closed state, carry out the release of oxygen, the changeable adsorption head of opposite side is transformed into working status, the absorption of oxygen is carried out, two groups of changeable adsorption heads work alternatively, and ensure the lasting progress of nitrogen process processed.
Description
Technical field
The present invention relates to a kind of single column air separating type nitrogen gas generating system and method, belong to nitrogen production technical field.
Background technology
With economic development, science and technology research and development civilian industry, all be unable to do without gas industry and cryogenic technique, during the whole world is particularly
The economic growth of state, has an optimistic view of air separation market prospects, situation optimism.The hair of the industry such as petrochemical industry, electronics, chemical fibre, polysilicon
It is more and more that exhibition needs High Purity Nitrogen to make leave with rage.The equipment of making nitrogen belongs to the energy conservation and environmental protection category that country encourages development.Nitrogen is chemically
Matter torpescence, has very big inertia, it is not easy to chemically react with other materials in the state of usually.Therefore, nitrogen exists
It is widely used in glass, oil refining, metallurgy, electronics, chemical industry as protection gas, its application prospect is boundless, is demand
A kind of burgeoning industrial gasses.
At present, the nitrogen prepared in primarily discrete air of nitrogen, in air, main gas is nitrogen and oxygen,
More than 78 percent, the content of oxygen in existing nitrogen industry processed, is exactly mainly nitrogen content more than 21 percent
Nitrogen making machine, by adsorbing the oxygen in air, obtains pure nitrogen.At present, existing nitrogen making machine mainly includes air compressor machine, nitrogen processed
Adsorption tanks and storage nitrogen pot, wherein, the separation of nitrogen and oxygen carries out in N2 adsorption tank processed, and air passes through N2 adsorption processed
After tank, the oxygen in air is by the activated carbon adsorption in N2 adsorption tank processed.Since activated carbon adsorptive capacity is limited, inhaling
, it is necessary to discharge oxygen after attached a certain amount of oxygen, it is then followed by adsorbing, in order to make nitrogen process processed persistently carry out, existing nitrogen making machine
Two N2 adsorption tanks processed are equipped with, two N2 adsorption tanks processed work alternatively, and ensure the lasting preparation of nitrogen with this.However, so
Equipment cost input is undoubtedly added, and equipment is excessive, it is impossible to be used in mobile operation.
The content of the invention
It is an object of the invention to provide a kind of single column air separating type nitrogen gas generating system and method, to achieve the above object,
The technical solution adopted by the present invention is as follows：
A kind of single column air separating type nitrogen gas generating system, including air compressor machine, drier, alkali cleaning pond, air blower, oil expeller, single column formula
Absorber, nitrogen buffer tank, wherein air compressor machine, oil expeller, single column formula absorber and nitrogen buffer tank are sequentially connected, in pneumatics
The inlet port of machine is provided with air pre-treatment device, which includes alkali cleaning pond, drier, and in alkali cleaning pond front end
Air blower is installed, it is characterised in that：The exhaust pipe of the nitrogen discharge pipe connection single column formula absorber, nitrogen discharge pipe end peace
Purity detecting case is filled, and two pipelines are separated from purity detecting case, a connection nitrogen buffer tank, another connects holding tank,
And solenoid valve is installed respectively on two pipelines；The holding tank connects the pipeline between air compressor machine and oil expeller by pipeline,
And the air-flow upstream line in two pipeline joints respectively sets a solenoid valve；The system is provided with the master control of control all parts
Device processed；The top of the single column formula absorber sets collection oxygen pipe, and solenoid valve, and the end connection of gas collecting tube are set on the gas collecting tube
Oxygen storage tank；The single column formula absorber includes absorber outer tank body and absorbent core, and absorbent core is fixedly installed by fixing piece
Inside absorber outer tank body；The lower part of absorber outer tank body sets bottom cover, and bottom cover overleaf sets driving dress to lower recess
Put, the air inlet pipe connected inside it is set in absorbent core lower face, and the air inlet pipe passes through bottom cover；The absorbent core includes one
The sealed shell of tank of changeable adsorption head is set around a, sealing flange is set in the lower edges of the sealed shell of tank, is correspondingly existed
The inner face of bottom cover sets Butt sealing flange；Changeable adsorption head in the absorbent core is divided into two groups, two groups of changeable absorption
Head works alternatively；The changeable adsorption head includes the fixed body being connected as a single entity with sealed shell of tank, and is set in the middle part of the fixed body
Cylindrical cavity, cylindrical cavity middle part installation adsorbent installing pipe；The both sides difference of cylindrical cavity and the adsorbent installing pipe
Venthole and through hole, wherein venthole connection absorber outer tank body and absorbent core are set；Along axis in the middle part of the adsorbent installing pipe
To through shaft is set, the lower end of shaft passes through bottom cover, and installs gear in shaft lower end, and gear is driven by corresponding driving device
It is dynamic；Collection oxygen chamber is set inside the side of fixed body, is connected between the collection oxygen chamber and cylindrical cavity by intercommunicating pore, and in collection oxygen
The upper end of chamber sets oxygen discharging tube, which passes through absorber outer tank body, and is connected with collection oxygen pipe.
Make in the equipment of making nitrogen, employ a N2 adsorption device processed, i.e. single column formula absorber, but set in single column formula absorber
The changeable adsorption head that can alternately work, after the changeable adsorption head of side is filled oxygen, is automatically converted into closing
State, carries out the release of oxygen, and the changeable adsorption head of opposite side is transformed into working status, carries out the absorption of oxygen, and two groups can
Switch adsorption head to work alternatively, ensure the lasting progress of nitrogen process processed.Compared with the existing equipment of making nitrogen, the equipment cost is low, effect
Rate is high, since equipment occupation space is few, operation easy to remove.
Preferably, air temporary storage tank is set between the drier and air compressor machine.Air temporary storage tank is used for temporary transient
Preliminary filtered air is passed through in accumulation, air compressor machine is had the air source of abundance.
Preferably, installation gas pressure detector in the holding tank, gas pressure detector connection master controller, and pass through
The solenoid valve between solenoid valve and air compressor machine and oil expeller on the pipeline of master controller control connection holding tank.
Preferably, installation oxygen detector in the purity detecting case, oxygen detector connection master controller, and
Solenoid valve on two pipelines separated on purity detecting case is controlled by master controller.
Preferably, the lower part of the single column formula absorber sets support leg.
Preferably, the bottom of the absorber outer tank body sets secondary lid, and pair lid is installed on bottom cover by bolt
On.Single column formula absorber lower part is provided with driving device and gear, sets secondary lid to be protected to these devices, avoids
It is damaged.
Preferably, the cylindrical cavity inner wall sets sealing internal layer.
Improve according to the present invention, it is also proposed that a kind of side using single column air separating type nitrogen gas generating system manufacture nitrogen
The step of method, the method for preparing nitrogen, is as follows：
A. start air blower, pass air through the sour gas in alkali cleaning pond removing air, then by drier, remove air
In moisture, then gas temporarily stored into air temporary storage tank；
B. air compressor machine is started by master controller, air compressor machine detaches the air in air temporary storage tank, these air is passed through oil removing
Device removes oil gas, and then air enters single column formula absorber；
C. the changeable adsorption head for controlling side in single column formula absorber by master controller is closed, and makes the changeable suction of opposite side
Attached head is opened, and carries out the absorption of oxygen in air at this time, and after waiting between reaching default, the changeable of oxygen has been adsorbed in closing
Adsorption head, opens another group of changeable adsorption head, so carries out the alternation of changeable adsorption head, makes at single column formula absorber
In continuous firing state.
D. the nitrogen excluded through single column formula absorber enters in nitrogen buffer tank.
Preferably, by purity detecting case before nitrogen prepared by single column formula absorber enters nitrogen buffer tank
Detection, for underproof gas, can reenter in single column formula absorber in holding tank and be filtered.
Preferably, underproof gas can be deposited with holding tank, wait temporary again into before single column formula absorber
After air pressure reaches certain numerical value in case, gas enters in single column formula absorber.
In the method for preparing nitrogen, nitrogen have passed through preliminary purification before air compressor machine is entered, remove carbon dioxide in air,
The gases such as sulfur dioxide, this is suitable for for any regional air, can remove the miscellaneous gas in air to greatest extent.In sky
The deoxygenation absorption phase of gas, existing oxygen removal process is worked alternatively by two N2 adsorption devices processed to complete, such
Operating mode equipment cost is big, and equipment occupation space is big, is not easy to move.A single column formula absorber has been used in this programme,
The changeable adsorption head that its internal setting can work alternatively, this dramatically saves on equipment investment cost, simplifies nitrogen process processed.It is right
In the gas for having impurity, secondary filter is also carried out, can effectively ensure the purity of made nitrogen.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention in use.
Fig. 2 is the overall structure diagram of the single column formula absorber of the present invention.
Fig. 3 is the bottom cover structure schematic under the single column formula absorber inversion state of the present invention.
Fig. 4 is the structure schematic diagram of the bottom cover of the present invention.
Fig. 5 is the half section structure diagram of the single column formula absorber of the present invention.
Fig. 6 is the mounting structure schematic diagram of the absorbent core under the single column formula absorber inversion state of the present invention.
Fig. 7 is the overall structure diagram of the absorbent core of the single column formula absorber of the present invention.
Fig. 8 is the structure diagram of the changeable adsorption head of the absorbent core of the present invention.
Fig. 9 is the half section structure diagram of the changeable adsorption head of the present invention.
In figure, air compressor machine 1, air temporary storage tank 2, drier 3, alkali cleaning pond 4, air blower 5, oil expeller 6, single column formula absorber
7th, nitrogen discharge pipe 8, nitrogen buffer tank 9, purity detecting case 10, holding tank 11, oxygen storage tank 12, solenoid valve 13, oxygen inspection
Survey device 14, gas pressure detector 15, master controller 16, absorber outer tank body 701, support leg 702, air inlet pipe 703, exhaust pipe 704,
Bottom cover 705, secondary lid 706, collection oxygen pipe 707, shaft 708, gear 709, driving device 710, absorbent core 711, fixing piece 712, can
Switch adsorption head 713, sealing flange 714, fixed body 715, cylindrical cavity 716, venthole 717, oxygen discharging tube 718, adsorbent peace
Tubulature 720, collection oxygen chamber 721, through hole 722, intercommunicating pore 723, sealing internal layer 724, Butt sealing flange 725.
Embodiment
As shown in the figure, a kind of single column air separating type nitrogen gas generating system, including air compressor machine 1, drier 3, alkali cleaning pond 4, air blast
Machine 5, oil expeller 6, single column formula absorber 7, nitrogen buffer tank 9, wherein air compressor machine 1, oil expeller 6, single column formula absorber 7 and nitrogen
Gas surge tank 9 is sequentially connected, and the inlet port of air compressor machine 1 is provided with air pre-treatment device, which includes alkali
Wash pool 4, drier 3, and air blower 5 is installed in 4 front end of alkali cleaning pond, it is characterised in that：The nitrogen discharge pipe 8 connects single column formula
The exhaust pipe 704 of absorber 7,8 end of nitrogen discharge pipe installation purity detecting case 10, and separate two pipes from purity detecting case 10
Road, a connection nitrogen buffer tank 9, another connection holding tank 11, and solenoid valve 13 is installed respectively on two pipelines；It is described
Holding tank 11 connects the pipeline between air compressor machine 1 and oil expeller 6 by pipeline, and in the air-flow upstream tube of two pipeline joints
Road respectively sets a solenoid valve 13；The system is provided with the master controller 16 of control all parts；The single column formula absorber 7 it is upper
Portion sets collection oxygen pipe 707, and solenoid valve 13, and the end connection oxygen storage tank 12 of gas collecting tube 707 are set on the gas collecting tube 707；
The single column formula absorber 7 includes absorber outer tank body 701 and absorbent core 711, and absorbent core 711 is fixed by fixing piece 712 and set
Put inside absorber outer tank body 701；The lower part of absorber outer tank body 701 sets bottom cover 705, bottom cover 705 to lower recess, and
The back side sets driving device 710, and the air inlet pipe 703 connected inside it, and the air inlet pipe 703 are set in 711 lower face of absorbent core
Through bottom cover 705；The sealed shell of tank for including setting changeable adsorption head 713 around one of the absorbent core 711, in the sealing
The lower edges of tank body set sealing flange 714, correspondingly set Butt sealing flange 725 in the inner face of bottom cover 705；The suction
Changeable adsorption head 713 on attached core 711 is divided to for two groups, and two groups of changeable adsorption heads 713 work alternatively；The changeable absorption
First 713 fixed bodies 715 including being connected as a single entity with sealed shell of tank, and the middle part of fixed body 715 sets cylindrical cavity 716, the circle
The middle part of column cavity 716 installation adsorbent installing pipe 720；The both sides of the cylindrical cavity 716 and adsorbent installing pipe 720 are set respectively
Venthole 717 and through hole 722 are put, wherein venthole 717 connects absorber outer tank body 701 and absorbent core 711；The adsorbent peace
For the middle part of tubulature 720 axially through shaft 708 is set, the lower end of shaft 708 passes through bottom cover 705, and is installed in 708 lower end of shaft
Gear 709, gear 709 are driven by corresponding driving device 710；Collection oxygen chamber 721 is set inside the side of fixed body 715, should
Connected between collection oxygen chamber 721 and cylindrical cavity 716 by intercommunicating pore 723, and oxygen discharging tube 718 be set in the upper end of collection oxygen chamber 721,
The oxygen discharging tube 718 passes through absorber outer tank body 701, and is connected with collection oxygen pipe 707.
Preferably, air temporary storage tank 2 is set between the drier 3 and air compressor machine 1.Air temporary storage tank 2 is used for
Temporarily preliminary filtered air is passed through in accumulation, air compressor machine 1 is had the air source of abundance.
Preferably, installation gas pressure detector 15 in the holding tank 11, gas pressure detector 15 connect master controller
16, and between the solenoid valve 13 and air compressor machine 1 and oil expeller 6 on the pipeline for passing through the control connection holding tank 11 of master controller 16
Solenoid valve 13.
Preferably, installation oxygen detector 14 in the purity detecting case 10, oxygen detector 14 connect master control
Device 16 processed, and the solenoid valve 13 on two pipelines separated on purity detecting case 10 is controlled by master controller 16.
Preferably, the lower part of the single column formula absorber 7 sets support leg 702.
Preferably, the bottom of the absorber outer tank body 701 sets secondary lid 706, which is pacified by bolt
On bottom cover 705.7 lower part of single column formula absorber is provided with driving device 710 and gear 709, sets secondary lid 706 can be right
These devices are protected, and avoid being damaged.
Preferably, 716 inner wall of cylindrical cavity sets sealing internal layer 724.
Make in the equipment of making nitrogen, employ a N2 adsorption device processed, i.e. single column formula absorber 7, but in single column formula absorber 7
If the changeable adsorption head 713 that can alternately work, after the changeable adsorption head 713 of side is filled oxygen, from turn
Change closed state into, carry out the release of oxygen, the changeable adsorption head 713 of opposite side is transformed into working status, carries out oxygen
Absorption, two groups of changeable adsorption heads 713 work alternatively, and ensure the lasting progress of nitrogen process processed., should compared with the existing equipment of making nitrogen
Equipment cost is low, efficient, since equipment occupation space is few, operation easy to remove.
Improve according to the present invention, it is also proposed that a kind of side using single column air separating type nitrogen gas generating system manufacture nitrogen
The step of method, the method for preparing nitrogen, is as follows：
A. start air blower 5, pass air through the sour gas in the removing of alkali cleaning pond 4 air, then by drier 3, remove
Moisture in air, then gas temporarily stored into air temporary storage tank 2；
B. air compressor machine 1 is started by master controller 16, air compressor machine 1 detaches the air in air temporary storage tank 2, passes through these air
Oil expeller 6 removes oil gas, and then air enters single column formula absorber 7；
C. the changeable adsorption head 713 for controlling side in single column formula absorber 7 by master controller 16 is closed, and make opposite side can
Switching adsorption head 713 is opened, and carries out the absorption of oxygen in air at this time, and after waiting between reaching default, oxygen has been adsorbed in closing
The changeable adsorption head 713 of gas, opens another group of changeable adsorption head 713, so carries out the alternating work of changeable adsorption head 713
Make, single column formula absorber 7 is in continuous firing state.
D. the nitrogen excluded through single column formula absorber 7 enters in nitrogen buffer tank 9.
Preferably, purity detecting case is passed through before nitrogen prepared by single column formula absorber 7 enters nitrogen buffer tank 9
10 detection, for underproof gas, can reenter in single column formula absorber 7 in holding tank 11 and be filtered.
Preferably, underproof gas can be deposited with holding tank 11 again into before single column formula absorber 7, etc.
After air pressure reaches certain numerical value in holding tank 11, gas enters in single column formula absorber 7.
In the method for preparing nitrogen, nitrogen have passed through preliminary purification before air compressor machine 1 is entered, remove carbon dioxide in air,
The gases such as sulfur dioxide, this is suitable for for any regional air, can remove the miscellaneous gas in air to greatest extent.In sky
The deoxygenation absorption phase of gas, existing oxygen removal process is worked alternatively by two N2 adsorption devices processed to complete, such
Operating mode equipment cost is big, and equipment occupation space is big, is not easy to move.A single column formula absorber 7 has been used in this programme,
The changeable adsorption head 713 that its internal setting can work alternatively, this dramatically saves on equipment investment cost, simplifies nitrogen mistake processed
Journey.For there is the gas of impurity, secondary filter is also carried out, can effectively ensure the purity of made nitrogen.
It the above is only the preferred embodiment of the present invention, it is noted that come for those skilled in the art
Say, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of single column air separating type nitrogen gas generating system, including air compressor machine, drier, alkali cleaning pond, air blower, oil expeller, single column
Formula absorber, nitrogen buffer tank, wherein air compressor machine, oil expeller, single column formula absorber and nitrogen buffer tank are sequentially connected, in sky
The inlet port of press is provided with air pre-treatment device, which includes alkali cleaning pond, drier, and before alkali cleaning pond
End installation air blower, it is characterised in that：The exhaust pipe of the nitrogen discharge pipe connection single column formula absorber, nitrogen discharge pipe end
Purity detecting case is installed, and two pipelines, a connection nitrogen buffer tank are separated from purity detecting case, another connection is kept in
Case, and solenoid valve is installed respectively on two pipelines；The holding tank connects the pipe between air compressor machine and oil expeller by pipeline
Road, and the air-flow upstream line in two pipeline joints respectively sets a solenoid valve；The system is provided with control all parts
Master controller；The top of the single column formula absorber sets collection oxygen pipe, and solenoid valve, and the end of gas collecting tube are set on the gas collecting tube
Connect oxygen storage tank；The single column formula absorber includes absorber outer tank body and absorbent core, and absorbent core is fixed by fixing piece
It is arranged on inside absorber outer tank body；The lower part of absorber outer tank body sets bottom cover, and bottom cover overleaf sets and drives to lower recess
Dynamic device, the air inlet pipe connected inside it is set in absorbent core lower face, and the air inlet pipe passes through bottom cover；The bag of the absorbent core
The sealed shell of tank that changeable adsorption head is set around one is included, sealing flange is set in the lower edges of the sealed shell of tank, accordingly
Ground sets Butt sealing flange in the inner face of bottom cover；Changeable adsorption head in the absorbent core is divided into two groups, and two groups changeable
Adsorption head works alternatively；The changeable adsorption head includes the fixed body being connected as a single entity with sealed shell of tank, and in the middle part of the fixed body
Cylindrical cavity is set, adsorbent installing pipe is installed in the middle part of the cylindrical cavity；The both sides of cylindrical cavity and the adsorbent installing pipe
Venthole and through hole, wherein venthole connection absorber outer tank body and absorbent core are set respectively；In the middle part of the adsorbent installing pipe
Axially through shaft is set, the lower end of shaft passes through bottom cover, and gear is installed in shaft lower end, and gear is filled by corresponding driving
Put driving；Collection oxygen chamber is set inside the side of fixed body, is connected between the collection oxygen chamber and cylindrical cavity by intercommunicating pore, and
The upper end for collecting oxygen chamber sets oxygen discharging tube, which passes through absorber outer tank body, and is connected with collection oxygen pipe.
A kind of 2. single column air separating type nitrogen gas generating system according to claim 1, it is characterised in that：The drier and sky
Air temporary storage tank is set between press.
A kind of 3. single column air separating type nitrogen gas generating system according to claim 1, it is characterised in that：Peace in the holding tank
Gas pressure detector, gas pressure detector connection master controller are filled, and the electricity on the pipeline for connecting holding tank is controlled by master controller
Solenoid valve between magnet valve and air compressor machine and oil expeller.
A kind of 4. single column air separating type nitrogen gas generating system according to claim 1, it is characterised in that：The purity detecting case
Interior installation oxygen detector, oxygen detector connection master controller, and control what is separated on purity detecting case by master controller
Solenoid valve on two pipelines.
A kind of 5. single column air separating type nitrogen gas generating system according to claim 1, it is characterised in that：The single column formula absorption
The lower part of device sets support leg.
A kind of 6. single column air separating type nitrogen gas generating system according to claim 1, it is characterised in that：The absorber outer tank
The bottom of body sets secondary lid, and pair lid is installed on bottom cover by bolt.
A kind of 7. single column air separating type nitrogen gas generating system according to claim 1, it is characterised in that：In the cylindrical cavity
Wall sets sealing internal layer.
A kind of a kind of 8. single column air separating type nitrogen gas generating system system utilized as described in profit requires any one of 1 to 7 claim
The method for making nitrogen, it is characterised in that：The step of method for preparing nitrogen, is as follows：
A. start air blower, pass air through the sour gas in alkali cleaning pond removing air, then by drier, remove air
In moisture, then gas temporarily stored into air temporary storage tank；
B. air compressor machine is started by master controller, air compressor machine detaches the air in air temporary storage tank, these air is passed through oil removing
Device removes oil gas, and then air enters single column formula absorber；
C. the changeable adsorption head for controlling side in single column formula absorber by master controller is closed, and makes the changeable suction of opposite side
Attached head is opened, and carries out the absorption of oxygen in air at this time, and after waiting between reaching default, the changeable of oxygen has been adsorbed in closing
Adsorption head, opens another group of changeable adsorption head, so carries out the alternation of changeable adsorption head, makes at single column formula absorber
In continuous firing state；
D. the nitrogen excluded through single column formula absorber enters in nitrogen buffer tank.
9. the method according to claim 8 for preparing nitrogen, it is characterised in that：Single column formula absorber prepare nitrogen into
Enter to pass through before nitrogen buffer tank the detection of purity detecting case, for underproof gas, list can be reentered in holding tank
Filtered in tower absorber.
10. the method according to claim 9 for preparing nitrogen, it is characterised in that：Underproof gas is again into single column formula
It before absorber, can be deposited with holding tank, wait after air pressure reaches certain numerical value in holding tank, gas enters single column formula absorber
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011360.XA CN107973279B (en) | 2018-01-05 | 2018-01-05 | Single-tower air separation type nitrogen production system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011360.XA CN107973279B (en) | 2018-01-05 | 2018-01-05 | Single-tower air separation type nitrogen production system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107973279A true CN107973279A (en) | 2018-05-01 |
| CN107973279B CN107973279B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810011360.XA Active CN107973279B (en) | 2018-01-05 | 2018-01-05 | Single-tower air separation type nitrogen production system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112691497A (en) * | 2020-12-04 | 2021-04-23 | 天津大学 | Multifunctional gas regulating system and regulating method for rural public health |
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| CN112691497A (en) * | 2020-12-04 | 2021-04-23 | 天津大学 | Multifunctional gas regulating system and regulating method for rural public health |
| CN112691497B (en) * | 2020-12-04 | 2022-08-12 | 天津大学 | Adjusting method based on rural public health multifunctional gas adjusting system |
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| CN107973279B (en) | 2023-11-14 |
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