CN211619943U - Membrane separation nitrogen making device - Google Patents
Membrane separation nitrogen making device Download PDFInfo
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- CN211619943U CN211619943U CN201921996246.3U CN201921996246U CN211619943U CN 211619943 U CN211619943 U CN 211619943U CN 201921996246 U CN201921996246 U CN 201921996246U CN 211619943 U CN211619943 U CN 211619943U
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- nitrogen
- membrane separation
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Abstract
The utility model relates to a nitrogen making device technical field, more specifically say and relate to a membrane separation nitrogen making device, including air compression system, clean system and membrane separation system, air compression system is including the compressor that is used for compressed air and the cooler that is used for cooling compressed air, the cooler passes through the pipeline and is connected with the gas vent of compressor, clean system is including the vapour and liquid separator that is used for dry cooling air, the one-level particle filter that is used for just straining dry air, the oil mist separator that is used for deoiling and the second grade particle filter that is used for the essence to strain, membrane separation system passes through the pipeline and is connected with the second grade particle filter, membrane separation system includes nitrogen gas outlet and evacuation export; the utility model discloses a vapour and liquid separator carries out the drying to compressed air earlier, reduces the erosion of moisture content to other parts, improves each parts life, effectively gets rid of the impurity in the gas through clean system, reduces the gas separation complexity and improves nitrogen making efficiency.
Description
Technical Field
The utility model relates to a nitrogen plant technical field, more specifically say so and relate to a membrane separation nitrogen plant.
Background
The nitrogen has lower density than air, inactive chemical property, difficult reaction with other substances at normal temperature and stable chemical property, and is widely applied to various fields. The existing nitrogen preparation methods mainly comprise 3 types: the method comprises the steps of producing nitrogen by cryogenic air separation, producing nitrogen by pressure swing adsorption and producing nitrogen by membrane separation, wherein the membrane separation nitrogen production method has the advantages of simpler nitrogen production process, high starting speed, smaller occupied area and the like due to the principle of gas separation by permeation and diffusion, but the membrane component is relatively high in price, and tiny impurities in compressed air easily cause damage to the membrane component.
SUMMERY OF THE UTILITY MODEL
To the weak point of above-mentioned prior art, the utility model provides a membrane separation nitrogen generator for solve and how to provide one kind and improve each part life, reduce the gas separation complexity and improve the membrane separation nitrogen generator of nitrogen generation efficiency.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a membrane separation nitrogen making device, includes air compression system, clean system and membrane separation system, air compression system is including the compressor that is used for compressed air and the cooler that is used for cooling compressed air, the cooler pass through the pipeline with the gas vent of compressor is connected, clean system pass through the pipeline with the gas vent of cooler is connected, clean system is including the vapour and liquid separator that is used for dry cooling air, the one-level particle filter who is used for just straining dry air, the oil mist separator that is used for the deoiling and the second grade particle filter that is used for the fine filtration, membrane separation system pass through the pipeline with second grade particle filter connects, membrane separation system includes nitrogen gas outlet and unloading export.
Preferably, the membrane separation system is provided with a nitrogen buffer tank, and the nitrogen buffer tank is provided with a nitrogen pressure gauge.
Preferably, the membrane separation system is formed by connecting 4 groups of membrane modules in parallel.
Preferably, a back pressure valve, a pressure reducing valve and a nitrogen flowmeter are arranged between the membrane module and the nitrogen outlet, and the back pressure valve and the pressure reducing valve are sequentially connected with the nitrogen flowmeter.
Preferably, the bottom ends of the cooler, the gas-liquid separator, the primary particle filter, the mist separator and the secondary particle filter are all connected with a sewage outlet pipe.
The utility model has the advantages that:
1) the compressed gas cooled by the cooler firstly enters the gas-liquid separator for drying, so that the corrosion of water in the compressed gas to other parts is reduced, and the service lives of the other parts are prolonged;
2) the dried compressed gas firstly primarily removes particle impurities through a primary particle filter, then deoils through an oil mist separator, and then finely filters through a secondary particle filter to remove the particle impurities, so that the impurities in the gas are effectively removed, the complexity of subsequent nitrogen separation is reduced, the damage of the impurities to a membrane component is also reduced, and the nitrogen production efficiency is improved in many aspects;
3) when the membrane module does not work completely, the back pressure valve prevents unseparated gas in the nitrogen making device from entering the nitrogen outlet, and the condition that unseparated gas enters the nitrogen outlet to reduce the purity of nitrogen making is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments protected by the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
in the drawings, the reference numerals denote the following components:
1-compressor, 2-cooler, 3-gas-liquid separator, 4-primary particle filter, 5-oil mist separator, 6-secondary particle filter, 7-membrane component, 8-nitrogen outlet, 9-vent outlet, 10-nitrogen buffer tank, 11-back pressure valve, 12-pressure reducing valve, 13-nitrogen flowmeter, and 14-blowdown outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a membrane separation nitrogen production apparatus includes an air compression system, a purification system and a membrane separation system, the air compression system includes a compressor 1 for compressing air and a cooler 2 for cooling the compressed air, the cooler 2 is connected with an exhaust port of the compressor 1 through a pipeline, the purification system is connected with an exhaust port of the cooler 2 through a pipeline, the purification system includes a gas-liquid separator 3 for drying the cooled air, a primary particle filter 4 for primarily filtering the dried air, an oil mist separator 5 for removing oil and a secondary particle filter 6 for finely filtering, the membrane separation system is connected with the secondary particle filter 6 through a pipeline, and the membrane separation system includes a membrane module 7, a nitrogen outlet 8 and a vent outlet 9. The air compressed by the compressor 1 is cooled in the cooler 2, the gas discharged from the exhaust port of the cooler 2 sequentially passes through the gas-liquid separator 3, the primary particle filter 4, the oil mist separator 5 and the secondary particle filter 6, the gas-liquid separator 3 firstly dries the gas, the erosion of moisture in the gas to other components is reduced, the service life of other components is prolonged, the dried gas firstly primarily removes particle impurities through the primary particle filter 4, then removes oil through the oil mist separator 5, and then finely filters through the secondary particle filter 6 to remove the particle impurities, so that not only are the impurities in the gas effectively removed, but also the complexity of subsequent nitrogen separation is reduced, the damage of the impurities to the membrane component 7 is also reduced, and the nitrogen production efficiency is improved in many aspects; after separation by the membrane module 7, water, carbon dioxide, oxygen, etc. are discharged from the vent outlet 9, and nitrogen is discharged from the nitrogen outlet 8.
Wherein, membrane separation system is equipped with nitrogen buffer tank 10, and nitrogen gas manometer is installed to nitrogen buffer tank 10. The nitrogen buffer tank 10 is used for buffering nitrogen separated by the membrane module 7.
Wherein, the membrane separation system is formed by connecting 4 groups of membrane modules 7 in parallel, thereby improving the efficiency of separating and preparing nitrogen.
Wherein, a back pressure valve 11, a pressure reducing valve 12 and a nitrogen flowmeter 13 are arranged between the membrane module 7 and the nitrogen outlet 8, and the back pressure valve 11, the pressure reducing valve 12 and the nitrogen flowmeter 13 are sequentially connected. When the membrane module 7 is not fully operated, the back pressure valve 11 prevents unseparated gas from entering the nitrogen outlet 8, and the unseparated gas is prevented from entering the nitrogen outlet 8 to reduce the purity of nitrogen production.
Wherein, the bottom ends of the cooler 2, the gas-liquid separator 3, the primary particle filter 4, the oil mist separator 5 and the secondary particle filter 6 are all connected with a sewage outlet pipe 14.
The utility model discloses a theory of operation: the membrane separation nitrogen making device starts to operate, the back pressure valve 11 prevents unseparated gas from entering the nitrogen outlet 8, air compressed by the compressor 1 is cooled in the cooler 2, gas discharged from an exhaust port of the cooler 2 sequentially passes through the gas-liquid separator 3, the primary particle filter 4, the oil mist separator 5 and the secondary particle filter 6, gas with moisture removed, particle impurities primarily removed, oil removed and particle impurities finely filtered enters the membrane module 7, water, carbon dioxide, oxygen and the like are discharged from the air discharge outlet 9 after being separated by the membrane module 7, and nitrogen enters the nitrogen buffer tank 10 from the nitrogen outlet 8.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A membrane separation nitrogen generator is characterized in that: including air compression system, clean system and membrane separation system, the air compression system is including compressor (1) that is used for compressed air and cooler (2) that are used for cooling compressed air, cooler (2) through the pipeline with the gas vent of compressor (1) is connected, clean system through the pipeline with the gas vent of cooler (2) is connected, clean system including be used for dry cooling air vapour and liquid separator (3), be used for the primary particle filter (4) of primary filter dry air, be used for the oil mist separator (5) of deoiling and be used for the second grade particle filter (6) of fine filtration, membrane separation system through the pipeline with second grade particle filter (6) are connected, membrane separation system includes membrane module (7), nitrogen outlet (8) and evacuation export (9).
2. The membrane separation nitrogen plant according to claim 1, characterized in that: the membrane separation system is provided with a nitrogen buffer tank (10), and a nitrogen pressure gauge is installed on the nitrogen buffer tank (10).
3. The membrane separation nitrogen plant according to claim 1, characterized in that: the membrane separation system is formed by connecting 4 groups of membrane modules (7) in parallel.
4. The membrane separation nitrogen plant according to claim 3, characterized in that: be equipped with back pressure valve (11), relief pressure valve (12) and nitrogen gas flowmeter (13) between membrane module (7) and nitrogen gas export (8), back pressure valve (11) relief pressure valve (12) with nitrogen gas flowmeter (13) connect gradually.
5. The membrane separation nitrogen plant according to claim 1, characterized in that: the bottom ends of the cooler (2), the gas-liquid separator (3), the primary particle filter (4), the oil mist separator (5) and the secondary particle filter (6) are all connected with a sewage discharge outlet pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921996246.3U CN211619943U (en) | 2019-11-19 | 2019-11-19 | Membrane separation nitrogen making device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921996246.3U CN211619943U (en) | 2019-11-19 | 2019-11-19 | Membrane separation nitrogen making device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211619943U true CN211619943U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921996246.3U Expired - Fee Related CN211619943U (en) | 2019-11-19 | 2019-11-19 | Membrane separation nitrogen making device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113117420A (en) * | 2021-03-31 | 2021-07-16 | 深圳市长深气体有限公司 | High-purity nitrogen preparation equipment and preparation method |
| CN115282741A (en) * | 2022-07-19 | 2022-11-04 | 中煤科工集团沈阳研究院有限公司 | Integral skid-mounted membrane separation nitrogen production device |
-
2019
- 2019-11-19 CN CN201921996246.3U patent/CN211619943U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113117420A (en) * | 2021-03-31 | 2021-07-16 | 深圳市长深气体有限公司 | High-purity nitrogen preparation equipment and preparation method |
| CN115282741A (en) * | 2022-07-19 | 2022-11-04 | 中煤科工集团沈阳研究院有限公司 | Integral skid-mounted membrane separation nitrogen production device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201002 Termination date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |