CN207566871U - A kind of film nitrogen-making device - Google Patents
A kind of film nitrogen-making device Download PDFInfo
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- CN207566871U CN207566871U CN201721576007.3U CN201721576007U CN207566871U CN 207566871 U CN207566871 U CN 207566871U CN 201721576007 U CN201721576007 U CN 201721576007U CN 207566871 U CN207566871 U CN 207566871U
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- nitrogen
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- membrane group
- source gas
- fibre membrane
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- Separation Of Gases By Adsorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of film nitrogen-making devices, including sequentially connected air compressor machine, air cushion tank, separator, filter, hollow-fibre membrane group, oxygen analyser and nitrogen buffer tank, wherein, surrounding air is compressed and exported to air cushion tank by air compressor machine, moisture, oil and solid particle in separator filtering source gas, the activated carbon of heavy hydrocarbon steam in Adsorption source gas built in filter, hollow-fibre membrane group includes several hollow-fibre membranes, and the hollow-fibre membrane isolates nitrogen from source gas.The present apparatus first pre-processes before nitrogen enters hollow-fibre membrane group, exclude all kinds of impurity, oxygen analyser is set between hollow-fibre membrane group and nitrogen buffer tank, analyze the oxygen content in the nitrogen separated out by doughnut membrane component, qualified nitrogen is delivered to nitrogen buffer tank by control valve, also it can prevent underproof nitrogen from entering user terminal the underproof nitrogen purge of oxygen content, ensure that nitrogen output purity is high.
Description
Technical field
The utility model is related to gas preparation field more particularly to a kind of film nitrogen-making devices.
Background technology
Existing film nitrogen-making device is generally using membrane separation technique, mainly by air compressor, air cushion tank, hollow fibre
Film and nitrogen buffer tank composition are tieed up, when air flows through hollow-fibre membrane, hollow fiber material can be to the oxygen nitrogen in compressed air
Gas component has the characteristic of selectively penetrating and diffusion, and oxygen is permeated and diffused out first, and nitrogen infiltration and diffusion
Property be slower than oxygen, thus when compressed air enters hollow-fibre membrane, oxygen is separated, and nitrogen is then used as output of products.It passes
The defects of film nitrogen-making device generally existing output nitrogen gas purity of system is relatively low, since processing early period may not appropriate or hollow fibre
It ties up that film nitrogen oxygen separating itself is unqualified, the nitrogen that hollow-fibre membrane exports can be caused unqualified, without rational detection device, just
Nitrogen buffer tank is fed directly to, the nitrogen gas purity of user terminal is difficult to reach 99%.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of high film nitrogen of nitrogen output purity
Device.
Technical solution is used by the utility model solves its technical problem：
A kind of film nitrogen-making device, including sequentially connected air compressor machine, air cushion tank, separator, filter, doughnut
Film group, oxygen analyser and nitrogen buffer tank, wherein：
Surrounding air is compressed and exported to air cushion tank by air compressor machine；
Separator filters moisture, oil and solid particle in source gas；
Filter, the activated carbon of the heavy hydrocarbon steam in built-in Adsorption source gas；
Hollow-fibre membrane group, including stent and rack-mount several hollow-fibre membranes, the hollow-fibre membrane from
Nitrogen is isolated in source gas；
Oxygen content analyzer analyzes the oxygen content in the nitrogen separated out by doughnut membrane component, and is connected with control
Valve, the control valve can empty unqualified gas, and qualified nitrogen is connected by transfer pipeline and nitrogen buffer tank；
Nitrogen buffer tank, one end are equipped with nitrogen interface.
As an improvement of the above technical solution, the hollow-fibre membrane group includes the primary membrane group being serially connected and secondary membrane
Group, the primary membrane group include several primary hollow tunica fibrosas parallel with one another, and the secondary membrane group includes several parallel with one another
Secondary, hollow tunica fibrosa.
As an improvement of the above technical solution, the air outlet pipe of the primary membrane group is connected with the air inlet pipe of secondary membrane group, institute
State the air outlet pipe connection oxygen analyser of secondary membrane group.
As an improvement of the above technical solution, each hollow-fibre membrane is equipped with exhausted air side discharge mouth.
As an improvement of the above technical solution, heater is additionally provided between the filter and hollow-fibre membrane group, it is described
Heater heats source gas, and 35 DEG C~45 DEG C are maintained into the source gas temperature before hollow-fibre membrane group.
As an improvement of the above technical solution, the separator includes moisture trap and gs-oil separator, the air water
A large amount of moisture in separator filtering source gas, the gs-oil separator filter a large amount of oil and solid particle in source gas.
As an improvement of the above technical solution, the filter includes carbon bed filter and particulate filter, the carbon bed
Activated carbon built in filter, the heavy hydrocarbon steam in Adsorption source gas, the particulate filter remove suspended particulate substance.
The beneficial effects of the utility model have：
The present apparatus first pre-processes before nitrogen enters hollow-fibre membrane group, excludes all kinds of impurity, hollow-fibre membrane group and
Oxygen analyser between nitrogen buffer tank is set, analyzes the oxygen content in the nitrogen separated out by doughnut membrane component, and connect
There is control valve, qualified nitrogen is delivered to nitrogen buffer tank, can also prevented the underproof nitrogen purge of oxygen content by control valve
Underproof nitrogen enters user terminal, ensures that nitrogen output purity is high.
Description of the drawings
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail, wherein：
Fig. 1 is the flow diagram of the utility model embodiment.
Specific embodiment
Referring to Fig. 1, a kind of film nitrogen-making device of the utility model, including sequentially connected air compressor machine 1, air cushion tank 2,
Separator 3, filter 4, heater 8, hollow-fibre membrane group 5, oxygen analyser 6 and nitrogen buffer tank 7, wherein, air compressor machine 1 will
Surrounding air is compressed and is exported to air cushion tank 2, and separator 3 includes moisture trap 31 and gs-oil separator 32, the gas
Separator 31 filters a large amount of moisture in source gas, and the gs-oil separator 32 filters a large amount of oil and solid particle in source gas.
Wherein, filter 4 includes carbon bed filter 41 and particulate filter 42, activity built in the carbon bed filter 41
Charcoal, the heavy hydrocarbon steam in Adsorption source gas, the particulate filter 42 remove suspended particulate substance, are to enter hollow-fibre membrane group
5 last one of barrier, particulate filter 42 also have discharge function, if discharge liquid, show prefilter component failure or
Failure should check preposition component.The heater 8 heats source gas, makes to enter the source gas temperature before hollow-fibre membrane group 5
35 DEG C~45 DEG C are maintained, best operating mode is provided for postorder.
In addition, hollow-fibre membrane group 5 includes stent and rack-mount several hollow-fibre membranes 501, it is described hollow
Tunica fibrosa 501 isolates nitrogen from source gas, and the hollow-fibre membrane group 5 includes the primary membrane group 51 being serially connected and secondary membrane
Group 52, the primary membrane group 51 include several primary hollow tunica fibrosas parallel with one another, and the secondary membrane group 52 includes several phases
Mutually secondary, hollow tunica fibrosa in parallel, the relatively low nitrogen of the air outlet pipe output purity of the primary membrane group 51, and with secondary membrane group
52 air inlet pipe connection, the higher nitrogen of the air outlet pipe output purity of the secondary membrane group 52 simultaneously connect oxygen analyser 6, this
Outside, each hollow-fibre membrane 501 is equipped with exhausted air side discharge mouth, and the exhausted air side discharge mouth of primary membrane group 51 discharges oxygen-rich exhaust,
The rich nitrogen exhaust gas of exhausted air side discharge mouth discharge of secondary membrane group 52, oxygen-rich exhaust and nitrogen-rich air can directly be vented or connect respectively receipts
Storage.
Oxygen content analyzer 6 can analyze the oxygen content in the nitrogen isolated by hollow-fibre membrane group 5, and be connected with
Control valve 9, control valve 9 can be connected qualified nitrogen by transfer pipeline and nitrogen buffer tank 7, and control valve 9 can also empty oxygen
The underproof nitrogen of content prevents underproof nitrogen from entering user terminal, ensures that nitrogen output purity is high, nitrogen buffer tank 7
One end is equipped with nitrogen interface, and nitrogen interface is dispersible to give user terminal.
The better embodiment of the above, only the utility model, but the utility model is not limited to above-mentioned reality
Example is applied, as long as it reaches the technique effect of the utility model with any same or similar means, should all belong to the utility model
Protection domain.
Claims (7)
1. a kind of film nitrogen-making device, it is characterised in that：Including sequentially connected air compressor machine, air cushion tank, separator, filtering
Device, hollow-fibre membrane group, oxygen analyser and nitrogen buffer tank, wherein：
Surrounding air is compressed and exported to air cushion tank by air compressor machine；
Separator filters moisture, oil and solid particle in source gas；
Filter, the activated carbon of the heavy hydrocarbon steam in built-in Adsorption source gas；
Hollow-fibre membrane group, including stent and rack-mount several hollow-fibre membranes, the hollow-fibre membrane is from source gas
In isolate nitrogen；
Oxygen content analyzer analyzes the oxygen content in the nitrogen separated out by doughnut membrane component, and is connected with control valve, institute
Unqualified gas can be emptied, and qualified nitrogen is connected by transfer pipeline and nitrogen buffer tank by stating control valve；
Nitrogen buffer tank, one end are equipped with nitrogen interface.
2. a kind of film nitrogen-making device according to claim 1, it is characterised in that：The hollow-fibre membrane group includes mutually string
The primary membrane group of connection and secondary membrane group, the primary membrane group include several primary hollow tunica fibrosas parallel with one another, the secondary
Film group includes several secondary, hollow tunica fibrosas parallel with one another.
3. a kind of film nitrogen-making device according to claim 2, it is characterised in that：The air outlet pipe of the primary membrane group and secondary
The air inlet pipe connection of film group, the air outlet pipe connection oxygen analyser of the secondary membrane group.
4. a kind of film nitrogen-making device according to claim 3, it is characterised in that：Each hollow-fibre membrane is equipped with exhaust gas side
Floss hole.
5. a kind of film nitrogen-making device according to claim 1, it is characterised in that：The filter and hollow-fibre membrane group it
Between be additionally provided with heater, the heater heats source gas, and 35 are maintained into the source gas temperature before hollow-fibre membrane group
DEG C~45 DEG C.
6. a kind of film nitrogen-making device according to claim 1, it is characterised in that：The separator include moisture trap and
Gs-oil separator, the moisture trap filter a large amount of moisture in source gas, and the gs-oil separator filters a large amount of in source gas
Oil and solid particle.
7. a kind of film nitrogen-making device according to claim 1, it is characterised in that：The filter include carbon bed filter and
Particulate filter, activated carbon built in the carbon bed filter, the heavy hydrocarbon steam in Adsorption source gas, the particulate filter are clear
Except suspended particulate substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576007.3U CN207566871U (en) | 2017-11-22 | 2017-11-22 | A kind of film nitrogen-making device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576007.3U CN207566871U (en) | 2017-11-22 | 2017-11-22 | A kind of film nitrogen-making device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207566871U true CN207566871U (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721576007.3U Active CN207566871U (en) | 2017-11-22 | 2017-11-22 | A kind of film nitrogen-making device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107758632A (en) * | 2017-11-22 | 2018-03-06 | 珠海恒基达鑫国际化工仓储股份有限公司 | A kind of film nitrogen-making device |
-
2017
- 2017-11-22 CN CN201721576007.3U patent/CN207566871U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107758632A (en) * | 2017-11-22 | 2018-03-06 | 珠海恒基达鑫国际化工仓储股份有限公司 | A kind of film nitrogen-making device |
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