CN201842645U - High-purity nitrogen generation system integrating membrane separation and pressure swing adsorption device - Google Patents
High-purity nitrogen generation system integrating membrane separation and pressure swing adsorption device Download PDFInfo
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- CN201842645U CN201842645U CN2010205767816U CN201020576781U CN201842645U CN 201842645 U CN201842645 U CN 201842645U CN 2010205767816 U CN2010205767816 U CN 2010205767816U CN 201020576781 U CN201020576781 U CN 201020576781U CN 201842645 U CN201842645 U CN 201842645U
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Abstract
The utility model discloses a high-purity nitrogen generation system integrating a membrane separation and pressure swing adsorption device, which comprises a programmable logic controller (PLC), a compressed air pretreatment unit, a membrane separating nitrogen generation unit and a nitrogen buffering storage tank, wherein the compressed air pretreatment unit, the membrane separating nitrogen generation unit and the nitrogen buffering storage tank are connected with an air compressor in sequence; the compressed air pretreatment unit comprises a buffer tank, an air-water separator, a cold-drying machine, a multi-stage filter and a heater connected in sequence through a pipeline from an air inlet; and the membrane separating nitrogen generation unit comprises membrane components. The high-purity nitrogen generation system is characterized in that the outlet of the nitrogen buffering storage tank is connected with a PSA (pressure swing adsorption) purification unit, the PSA purification unit comprises a plurality of adsorption towers, nitrogen process tanks and dust filters, the adsorption towers are connected through pipelines, the nitrogen process tanks and the dust filters are connected with the adsorption towers in sequence, and the outlet ends of the dust filters are connected with the nitrogen outlets of the system; and the pipelines connected with the adsorption towers are provided with a plurality of air control valves, and the programmable logic controller (PLC) is respectively connected with the air control valves. The high-purity nitrogen generation system can not only generate high-purity nitrogen, but also can reduce the energy consumption and conserve resources.
Description
Technical field
The utility model relates to a kind of Nitrogen plant, relates in particular to a kind of nitrogen gas generating system that is integrated with membrane sepn and pressure-swing absorption apparatus.
Background technology
Air separation is produced high-purity nitrogen and is had only dual mode at present, and the one, the empty high-purity nitrogen of producing more than 99.999% that divides of deep cooling, another kind of mode is that PSA (pressure swing adsorption) produces the high-purity nitrogen more than 99.999%; Wherein, deep cooling is empty to divide the high-purity nitrogen of producing more than 99.999%, if scale is at 1000Nm
3More than/the h, then comparatively economical; Employing PSA produces the high-purity nitrogen more than 99.999%, and its deficiency that mainly exists is that rate of recovery of nitrogen is lower, and it is bigger to consume energy, and the one-time investment of equipment is bigger.For a long time, do not produce high-purity nitrogen, therefore, in producing the high-purity nitrogen process, caused the huge wasting of resources in the prior art because of there being the lower non-low temperature separating methods of suitable energy consumption.
Adopt membrane separation technique more than in nitrogen producing craft, though, adopt membrane separation technique can alleviate personnel's workload, cut down the consumption of energy, prolong the work-ing life of equipment.But the purity of the nitrogen of being produced is 95～98%, and its index can't reach high purity.
At present, producing aspect the high-purity nitrogen still no-trump membrane sepn and the integrated system of PSA.
The utility model content
At above-mentioned prior art, the utility model provides a kind of high-purity nitrogen gas generating system that is integrated with membrane sepn and pressure-swing absorption apparatus, can obtain all higher nitrogen resource of the rate of recovery and purity, its technical feasibility, economical rationality, both solved and to have produced highly purified nitrogen, and can cut down the consumption of energy again, the technology of saving resources problem, have very high social benefit, environmental benefit and economic benefit, be worthy of popularization.
In order to solve the problems of the technologies described above, the utility model is integrated with the technical scheme that high-purity nitrogen gas generating system of membrane sepn and pressure-swing absorption apparatus is achieved and is: comprise programmable logic controller PLC and the pressurized air pretreatment unit, film separation and nitrogen-making unit and the nitrogen buffering storage tank that are connected successively with air compressor machine; Described pressurized air pretreatment unit comprises surge tank, air water separator, cooling driers, multistage filter and the well heater that connects successively with pipeline from air intlet; Described film separation and nitrogen-making unit is made of membrane module; It is characterized in that, the outlet of described nitrogen buffering storage tank is connected with the PSA purifier units, described PSA purifier units includes a plurality of adsorption towers by pipe connection, is connected with nitrogen process tank and dust filter unit in turn with adsorption tower, and the exit end of described dust filter unit is connected to the nitrogen outlet of system; Be provided with a plurality of Air control valves on the pipeline that connects adsorption tower, above-mentioned programmable logic controller PLC is connected with above-mentioned Air control valve respectively.
Compared with prior art, the beneficial effects of the utility model are:
In the prior art, its best purity of PSA technology system nitrogen is 95-99.99%, and nitrogen gas purity is after more than 99.995%, and its investment and working cost will improve greatly, and the increase of system nitrogen energy consumption.Its best purity of film separation and nitrogen-making technology system nitrogen is 95-98%, nitrogen gas purity is between 99%-99.9% the time, and its investment and working cost will improve greatly, and the increase of system nitrogen energy consumption, (v) the time, the mode of membrane sepn just has better economic but as long as nitrogen gas purity is 95%.Because the high-purity nitrogen gas generating system of the utility model has the dual characteristics of membrane separation technique and PSA, at first, the membrane separation technique system of employing nitrogen, extract the nitrogen of about 95% left and right sides purity in advance, with PSA the nitrogen of 95% left and right sides purity is purified to 99.9995% again, thereby obtain high pure nitrogen, this membrane separation technique and PSA are united carried out the isolating high-purity nitrogen gas generating system of nitrogen oxygen, made full use of the advantage of membrane sepn and two kinds of technology of PSA, greatly reduce the cost of producing 99.995%-99.9995% high-purity nitrogen system, meanwhile, also saved energy consumption.Therefore, adopt the utility model to be integrated with high-purity nitrogen gas generating system of membrane sepn and PSA device, when being applied to produce purity and being 99.995% to 99.9995% high-purity nitrogen, its investment and working cost are comparatively suitable, and it is lower to make the nitrogen energy consumption.
Description of drawings
Accompanying drawing is high-purity nitrogen gas generating system synoptic diagram that the utility model is integrated with membrane sepn and pressure-swing absorption apparatus.
Among the figure:
1---air compressor machine 2---surge tank 3---air water separator 4---cooling driers
5---multistage filter 6---well heater 7---membrane module 8---nitrogen buffering storage tanks
9---adsorption tower 10---nitrogen process tank 11---dust filter units
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done to describe in further detail.
Along with development of Chinese economy, more and more with the enterprise of high-purity nitrogen, the nitrogen breach is bigger.At present, domestic application is more mainly contains membrane separation process and PSA (transformation absorption) partition method.
Membrane separation process of preparing nitrogen technology is the gas membrane Seperation Technology that realizes industrial applications the earliest the eighties in 20th century.Finger utilize in the air oxygen molecule preferential infiltration in film to pass through, thereby and nitrogen component realizes separating process by the difference of film more slowly under certain pressure drives.At present, this technology is ripe, adopts this membrane separation technique, and its rate of recovery of nitrogen generally can reach 12%～48%, and nitrogen gas concn reaches 90%～99.9%, and the life-span of film generally can reach more than 10 years, nitrogen tolerance 5-2000Nm
3/ h.Particularly (v) the time, the mode of membrane sepn just has better economic as long as nitrogen gas purity is 95%.
Pressure swing adsorption (Pressure Swing Adsorption, be called for short the PSA technology) be a kind of advanced person's gas separation, based on of the physical adsorption of sorbent material (porosu solid material) internal table in the face of gas molecule, utilize sorbent material easily to absorb high boiling point gas under uniform pressure, be difficult for absorbing low-boiling point gas, the characteristic that reduces with the adsorptive capacity that is absorbed gas under the adsorptive capacity increase that is absorbed gas under the high pressure, the low pressure realizes separating of gas.Thisly adsorbing under pressure that desorption of impurities makes the process of adsorbent reactivation under impurity, the decompression, is exactly the transformation sorption cycle.Transformation absorption principle (PSA) separation of air is produced highly purified nitrogen under the employing normal temperature.Usually, air after dehydration, removal of impurities, removing the wet goods pre-treatment, is entered adsorption bed and carries out fractionation by adsorption.Adopt the PSA isolation technique, to the decreasing ratio height of impurity, can produce high-purity nitrogen, nitrogen gas concn can reach 95-99.9995%.PSA makes nitrogen, has that technical process is simple, level of automation is high, an aerogenesis fast (15～30 minutes), characteristics such as energy consumption is low, product purity is high, convenient operating maintenance, running cost are lower.
To sum up, nitrogen gas purity required at 99.995% to 99.9995% o'clock, it is better to adopt that embrane method/PSA method integrated technique is produced nitrogen, promptly earlier with embrane method with after nitrogen component concentration brings up to 95% in the air, further improve the purity of nitrogen to 99.995%-99.9995% with the PSA pressure swing adsorption process again.
As shown in drawings, the utility model is integrated with high-purity nitrogen gas generating system of membrane sepn and pressure-swing absorption apparatus, comprises programmable logic controller PLC and the pressurized air pretreatment unit that is connected successively with air compressor machine 1, film separation and nitrogen-making unit and nitrogen buffering storage tank 8; Described pressurized air pretreatment unit comprises surge tank 2, air water separator 3, cooling driers 4, multistage filter 5 and the well heater 6 that connects successively with pipeline from air intlet; Described film separation and nitrogen-making unit is made of membrane module 7, the outlet of described nitrogen buffering storage tank 8 is connected with the PSA purifier units, described PSA purifier units includes a plurality of adsorption towers 9 by pipe connection, two adsorption tower A, B have been there is shown, but the utility model is not limited to include plural adsorption tower, the bottom of each described adsorption tower is equipped with inlet mouth, and the top of each adsorption tower is provided with produces the nitrogen mouth.With nitrogen process tank 10 and dust filter unit 11 that described adsorption tower 9 is connected successively, the exit end of described dust filter unit 11 is connected to the nitrogen outlet of system; Be provided with a plurality of Air control valves on the pipeline that connects adsorption tower, the above-mentioned valve of described PLC programmable controller controls is realized its open and close function.In addition, for the noise that the reduction system is produced, described PSA purifier units also includes a sound damper.
Although in conjunction with figure the utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.
Claims (3)
1. high-purity nitrogen gas generating system that is integrated with membrane sepn and pressure-swing absorption apparatus comprises programmable logic controller PLC and the pressurized air pretreatment unit, film separation and nitrogen-making unit and the nitrogen buffering storage tank that are connected successively with air compressor machine; Described pressurized air pretreatment unit comprises surge tank, air water separator, cooling driers, multistage filter and the well heater that connects successively with pipeline from air intlet; Described film separation and nitrogen-making unit is made of membrane module; It is characterized in that, the outlet of described nitrogen buffering storage tank is connected with the PSA purifier units, described PSA purifier units includes a plurality of adsorption towers by pipe connection, is connected with nitrogen process tank and dust filter unit in turn with adsorption tower, and the exit end of described dust filter unit is connected to the nitrogen outlet of system; Be provided with a plurality of Air control valves on the pipeline that connects adsorption tower, above-mentioned programmable logic controller PLC is connected with above-mentioned Air control valve respectively.
2. according to the described high-purity nitrogen gas generating system that is integrated with membrane sepn and pressure-swing absorption apparatus of claim 1, it is characterized in that described PSA purifier units also includes sound damper.
3. according to the described high-purity nitrogen gas generating system that is integrated with membrane sepn and pressure-swing absorption apparatus of claim 1, it is characterized in that the bottom of each described adsorption tower is equipped with inlet mouth, the top of each adsorption tower is provided with produces the nitrogen mouth.
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| CN2010205767816U CN201842645U (en) | 2010-10-26 | 2010-10-26 | High-purity nitrogen generation system integrating membrane separation and pressure swing adsorption device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058153A (en) * | 2012-12-19 | 2013-04-24 | 山东金宇轮胎有限公司 | Nitrogen preparation recycle system and control method thereof |
| CN103894037A (en) * | 2014-03-27 | 2014-07-02 | 安徽华晶机械股份有限公司 | Special saw material gas pretreatment device for high-purity and high-pressure gas preparation equipment |
| CN105399063A (en) * | 2015-12-08 | 2016-03-16 | 山东恒业石油新技术应用有限公司 | Combined high pressure nitrogen purification equipment |
| CN106006564A (en) * | 2016-06-30 | 2016-10-12 | 广州惠临空气分离设备有限公司 | Energy-saving type domestic oxygen generator with multi-stage air purification system |
| CN106115626A (en) * | 2016-06-30 | 2016-11-16 | 广州惠临空气分离设备有限公司 | Household type mute oxygen generator containing multi-staged air cleaning system |
| CN106185844A (en) * | 2016-07-06 | 2016-12-07 | 合肥良骏汽车材料有限公司 | A kind of nitrogen gas generator produced for roof of the vehicle |
| CN106348261A (en) * | 2016-12-03 | 2017-01-25 | 上海垣锦机电设备制造有限公司 | Nitrogen-making device |
| CN107215088A (en) * | 2017-06-14 | 2017-09-29 | 无锡大燕科技有限公司 | A kind of steam forming decorative materials equipment and technique |
| CN107399723A (en) * | 2016-05-19 | 2017-11-28 | 拜默实验设备（上海）股份有限公司 | A kind of continuous device for preparing high-purity nitrogen |
| CN108502854A (en) * | 2018-04-11 | 2018-09-07 | 天津森罗科技股份有限公司 | A kind of high-pressure membrane equipment of making nitrogen |
| CN110294464A (en) * | 2018-03-23 | 2019-10-01 | 中国石油化工股份有限公司 | High-purity nitrogen generation system and method for nitrogen flooding |
| CN112777576A (en) * | 2020-06-23 | 2021-05-11 | 江苏轻跃气体科技有限公司 | Pressure swing adsorption nitrogen making device with centralized pollution discharge function |
| CN114314530A (en) * | 2022-01-06 | 2022-04-12 | 烟台杰瑞石油装备技术有限公司 | Membrane nitrogen production system and control method thereof |
-
2010
- 2010-10-26 CN CN2010205767816U patent/CN201842645U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058153B (en) * | 2012-12-19 | 2014-09-10 | 山东金宇轮胎有限公司 | Nitrogen preparation recycle system and control method thereof |
| CN103058153A (en) * | 2012-12-19 | 2013-04-24 | 山东金宇轮胎有限公司 | Nitrogen preparation recycle system and control method thereof |
| CN103894037A (en) * | 2014-03-27 | 2014-07-02 | 安徽华晶机械股份有限公司 | Special saw material gas pretreatment device for high-purity and high-pressure gas preparation equipment |
| CN103894037B (en) * | 2014-03-27 | 2015-12-16 | 安徽华晶机械股份有限公司 | The feed gas preprocessing device of high-purity, high compacting gas device-specific |
| CN105399063A (en) * | 2015-12-08 | 2016-03-16 | 山东恒业石油新技术应用有限公司 | Combined high pressure nitrogen purification equipment |
| CN107399723A (en) * | 2016-05-19 | 2017-11-28 | 拜默实验设备（上海）股份有限公司 | A kind of continuous device for preparing high-purity nitrogen |
| CN107399723B (en) * | 2016-05-19 | 2023-06-13 | 拜默实验设备（上海）股份有限公司 | Device for continuously preparing high-purity nitrogen |
| CN106006564B (en) * | 2016-06-30 | 2018-11-30 | 广州惠临空气分离设备有限公司 | The energy-saving household oxygenerator of the purification system containing multi-staged air |
| CN106115626A (en) * | 2016-06-30 | 2016-11-16 | 广州惠临空气分离设备有限公司 | Household type mute oxygen generator containing multi-staged air cleaning system |
| CN106006564A (en) * | 2016-06-30 | 2016-10-12 | 广州惠临空气分离设备有限公司 | Energy-saving type domestic oxygen generator with multi-stage air purification system |
| CN106185844A (en) * | 2016-07-06 | 2016-12-07 | 合肥良骏汽车材料有限公司 | A kind of nitrogen gas generator produced for roof of the vehicle |
| CN106348261A (en) * | 2016-12-03 | 2017-01-25 | 上海垣锦机电设备制造有限公司 | Nitrogen-making device |
| CN107215088A (en) * | 2017-06-14 | 2017-09-29 | 无锡大燕科技有限公司 | A kind of steam forming decorative materials equipment and technique |
| CN110294464A (en) * | 2018-03-23 | 2019-10-01 | 中国石油化工股份有限公司 | High-purity nitrogen generation system and method for nitrogen flooding |
| CN108502854A (en) * | 2018-04-11 | 2018-09-07 | 天津森罗科技股份有限公司 | A kind of high-pressure membrane equipment of making nitrogen |
| CN112777576A (en) * | 2020-06-23 | 2021-05-11 | 江苏轻跃气体科技有限公司 | Pressure swing adsorption nitrogen making device with centralized pollution discharge function |
| CN112777576B (en) * | 2020-06-23 | 2023-06-20 | 江苏轻跃气体科技有限公司 | Pressure swing adsorption nitrogen making device with centralized blowdown function |
| CN114314530A (en) * | 2022-01-06 | 2022-04-12 | 烟台杰瑞石油装备技术有限公司 | Membrane nitrogen production system and control method thereof |
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Granted publication date: 20110525 |