CN201023020Y - Adsorption tower for composite bed structure - Google Patents
Adsorption tower for composite bed structure Download PDFInfo
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- CN201023020Y CN201023020Y CNU2007201070789U CN200720107078U CN201023020Y CN 201023020 Y CN201023020 Y CN 201023020Y CN U2007201070789 U CNU2007201070789 U CN U2007201070789U CN 200720107078 U CN200720107078 U CN 200720107078U CN 201023020 Y CN201023020 Y CN 201023020Y
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- tower
- tower body
- molecular sieve
- adsorption tower
- screen plate
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Abstract
The utility model relates to an adsorption tower in the structure of multiple-hearth, wherein a pressing air cylinder, a top bar, a piston, an air cylinder and a filling cylinder are disposed on the upper portion of the tower, further a molecular sieve is arranged in the tower. A first screen plate with arc aperture is arranged on the lower portion of the filling cylinder, and an anitrogen outlet device is arranged in the tower, then an antitrogen inlet is communicated with the first screen plate with arc aperture, further the end product of the anitrgen outlet goes through the inner wall of the tower and is exposed outside. A second coconut cushion which is contacted with the molecular sieve is disposed on the lower portion of the tower, then a second screen plate with arc aperture is arranged under the second coconut cushion and desiccator is disposed in the cavity between the second coconut cushion and the second screen plate with arc aperture, further a ceramic ball is arranged in the cavity between the second screen plate with arc aperture and a cyclone diffusing device with screw blades which is arranged on the opening of the lower portion of the second screen plate with arc aperture, wherein the cyclone diffusing device with screw blades is communicated with a sound-deadening air outlet and a compressing air inlet through an air diverting device. The utility model has a plurality of beneficial effects which include: 1. the multiple-hearth structure is adopted; 2. the carbon molecule has little water absorption quantity; 3. the nitrogen purity is improved and the durability of the carbon molecular sieve is extended.
Description
Technical field
The utility model relates to a kind of adsorption tower, especially a kind of adsorption tower of multiple-hearth structure.
Background technology
Transformation absorption Pressure Swing Adsorption, be called for short: PSA is a kind of advanced person's a gas separation, has irreplaceable status aspect the normal temperature system gas.PSA making nitrogen by pressure swing adsorption device is high-new, an energy-conservation isolation technics of directly producing nitrogen at normal temperatures from air.Be utilize compressed air through oil removing, dewater, under the transformation suction-operated, separate after a series of purification of dedusting and produce nitrogen, because kinetic effect, the diffusion rate of oxygen on carbon molecular sieve is apparently higher than nitrogen, when absorption does not reach balance, nitrogen is got up by enrichment in gas phase, adopt the PLC automatic control technology of import, realized the nitrogen that continuous production is high-quality.Have that facility compact, floor space are little, full automatic working, reliable, rise stop fast, operating cost is low, normal temperature production and advantage such as easy to maintenance, and the purity of nitrogen can suitably be regulated with flow, nonpollution environment is a kind of on-the-spot efficiently gas making device.
Carbon molecular sieve is the core of PSA system nitrogen, in its surface distributed a large amount of micropores is arranged, under certain pressure, oxygen in its a large amount of absorbed air, carbon dioxide, moisture etc., and the nitrogen adsorption amount seldom, become product gas and flow out from the adsorption tower top, when pressure was reduced to normal pressure, its adsorbed oxygen, carbon dioxide, moisture discharged in carbon molecular sieve.PSA system nitrogen produces according to this principle, and two adsorption towers generally are set in system, and nitrogen is produced in tower absorption, a tower desorption and regeneration, and alternate cycles, thus produce nitrogen continuously.
When A adsorption tower absorption when saturated, A, B double tower are all pressed, after all pressing end, the A adsorption tower is reverse discharges impurity such as oxygen when putting pressure, the B tower begins absorption and produces nitrogen, simultaneously with an amount of product nitrogen gas backflow blowback flushing A tower adsorption bed, residues in the adsorbate of adsorption bed with thorough removing, realize thoroughly regeneration, for absorption is next time prepared.
At present the common structure of adsorption tower after Compressed Gas enters adsorption tower, directly enters the louvre blade cyclone as shown in Figure 1, and gas presents risings of spiraling of S type, directly contacts with carbon molecular sieve through the taper mesh screen, finishes simple gas diffusion.When high pure nitrogen enters the top, also there is one deck to filter mesh screen and tackles molecular sieve.But nitrogen is to take over away from top, and like this, the spatial volume of outlet nitrogen is also narrower and small, causes flux to reduce relatively, simultaneously the useful space of hold down gag has also been reduced.8 traditional valves all press employing all to press up and down, and when the absorption of A tower finished, nitrogen gas purity distributes in the A adsorption tower, and to go up relative superiority or inferiority low, and the A.B tower begins all to press up and down, all press finish after, in the B adsorption tower nitrogen gas purity distribute and the A column foot this is the same, present relative superiority or inferiority and hang down the shape distribution.Concrete not enough as follows: 1 dew points at normal pressure of compressed air when contacting with carbon molecular sieve has only about-20 ℃ air moisture content 1.07g/m
2, the carbon molecular sieve water absorption is 14 times of this patent.2, carbon molecular sieve is subject to the pollution of little oil and moisture, and absorption property and mechanical strength descend after using a period of time to some extent, and because of the absorption excess moisture causes efflorescence, fragmentation, can not guarantee service life.3, air-flow directly impacts carbon molecular sieve, easily causes carbon molecular sieve efflorescence, fragmentation, and the carbon dust of efflorescence easily makes valve leak, stuck, and fault rate increases.4, air velocity is very fast, and the carbon molecular sieve absorption property is not fully utilized, and is bigger to the raising influence of nitrogen gas purity.Be difficult to one and go on foot the nitrogen of producing 99.999% above purity.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of adsorption tower that guarantees carbon molecular sieve service life and improve the multiple-hearth structure of carbon molecular sieve denitrification production rate that has is provided.
The utility model solves the technical scheme that its technical problem adopts: the adsorption tower of this multiple-hearth structure, mainly comprise tower body, and the top of tower body is provided with clamping cylinder, push rod, piston, cylinder and filler cylinder, is provided with molecular sieve in the tower body.Described filler cylinder bottom is provided with the first arcuate socket web plate, and the nitrogen outlet device is arranged on tower body inside, and its import is connected with the first arcuate socket web plate, and its finished product nitrogen outlet passes outside the tower body inwall is exposed to; The bottom of tower body is provided with the second coconut palm pad that contacts with molecular sieve, be provided with the second arcuate socket web plate below the second coconut palm pad, be provided with drier in the cavity between the second coconut palm pad and the second arcuate socket web plate, be provided with the porcelain ball in the cavity between the flight whirlwind disperser at the second arcuate socket web plate and lower openings place, flight whirlwind disperser is connected with gas muffler outlet, compressed air inlet by gas diverter.
Described tower body is provided with the middle part pressure-equalizing device, and the conduit entrance of this device extends upward the middle and upper part in tower body, and its outlet of all calming the anger is passed outside the tower body inwall is exposed to, and is used for another adsorption tower is all pressed.
Described piston is provided with the first coconut palm pad that is used to isolate double compress gasket on seal face.
Described clamping cylinder is provided with the carbon potential alarm.
The lower position of described tower body is provided with device for discharging.
The effect that the utility model is useful is: 1, adopt the multiple-hearth structure; 2 dew points at normal pressure of compressed air when contacting with carbon molecular sieve reach below-48 ℃, and air moisture content has only 0.075g/m
2, the carbon molecular sieve water absorption seldom.3, the protection carbon molecular sieve is not subjected to the pollution of little oil and moisture and causes the decline of absorption property and mechanical strength, prolongs the service life of carbon molecular sieve.4, avoid air-flow directly to impact carbon molecular sieve, reached molecular sieve efflorescence, broken phenomenon that high speed impact causes.5, the air-flow diffusion profile device and the inert ceramic balls that are provided with of adsorption tower bottom, make gas when diffusion, be " S " helical flow, linearly shape is mobile when contacting with carbon molecular sieve, this not only greatly reduces the impulsive force of gas to carbon molecular sieve, also make gas more even in adsorption process, and effectively prevent absorption " dead angle " and produce " tunnel-effect ", the service life that helps improving nitrogen gas purity and guarantee carbon molecular sieve.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of prior art;
Fig. 2 is a main TV structure schematic diagram of the present utility model;
Fig. 3 is the structural representation of flight whirlwind disperser of the present utility model.
Description of reference numerals: clamping cylinder 1, carbon potential alarm 2, cylinder 3, push rod 4, piston 5, the first coconut palm pads 6, filler cylinder 7, the first arcuate socket web plates 8, nitrogen outlet device 9, molecular sieve 10, middle part pressure-equalizing device 11, the second coconut palm pads 12, the second arcuate socket web plate 13, device for discharging 14, drier 15, porcelain ball 16, flight whirlwind disperser 17, gas diverter 18, gas muffler outlet 19, compressed air inlet 20, all calm the anger and export 21, finished product nitrogen outlet 22, tower body 23.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figures 2 and 3, the adsorption tower of this multiple-hearth structure, mainly comprise tower body 23, the top of tower body 23 is provided with clamping cylinder 1, push rod 4, piston 5, cylinder 3 and filler cylinder 7, piston 5 is provided with the first coconut palm pad 6 that is used to isolate double compress gasket on seal face, be provided with molecular sieve 10 in the tower body 23, the lower position of tower body 23 is provided with device for discharging 14.Described filler cylinder 7 bottoms are provided with the first arcuate socket web plate 8, and nitrogen outlet device 9 is arranged on tower body 23 inside, and its import is connected with the first arcuate socket web plate 8, and its finished product nitrogen outlet 22 passes outside tower body 23 inwalls are exposed to; The bottom of tower body 23 is provided with the second coconut palm pad 12 that contacts with molecular sieve 10, be provided with the second arcuate socket web plate 13 below the second coconut palm pad 12, be provided with drier 15 in the cavity between the second coconut palm pad 12 and the second arcuate socket web plate 13, be provided with porcelain ball 16 in the cavity between the flight whirlwind disperser 17 at the second arcuate socket web plate 13 and lower openings place, flight whirlwind disperser 17 is connected with gas muffler outlet 19, compressed air inlet 20 by gas diverter 18.
Described tower body is provided with middle part pressure-equalizing device 11, and the conduit entrance of this device extends upward in the middle and upper part of tower body 23, and its outlet 21 of all calming the anger is passed outside tower body 23 inwalls are exposed to, and is used for another adsorption tower is all pressed.The utility model adopts to be gone up following pressure-equalizing device mode.That is to say, adopt the high-purity nitrogen in nitrogen making machine upper end to come another one system nitrogen adsorption tower is all pressed, make an other absorbing cylinder just have high-purity nitrogen to supply with at first like this in absorption.
The operation principle and the course of work:
Compressed air enters adsorption tower in the utility model, and the gas current-sharing by gas diverter 18 disperses to enter flight whirlwind disperser 17.Gas is irregular status and contacts with inert ceramic balls 16, makes compressed air progressively obtain shunting in the porcelain sphere gap, can not produce the air dead angle, and all Compressed Gas are fully used.Between porcelain ball and carbon molecular sieve, can also add a spot of aluminium oxide and adsorb micro-moisture in the compressed air.The air that enters carbon molecular sieve is carried out further drying, thus the better protection carbon molecular sieve.Also continue simultaneously bringing into play the effect of gas diffusion shunting.Mix for fear of work long hours rear oxidation aluminium and carbon molecular sieve, between has added one deck second coconut palm pad 12 and has been used as isolating.
The utility model is by the middle part pressure-equalizing device 11 on the tower body, adopt 10 valve absorbing process, more energy-conservation than 8 traditional valve technologies, efficient is higher, mainly show all on the pressure mode, because being the ladder propradation in adsorption tower, nitrogen gas purity distributes, last relative superiority or inferiority is low, when A adsorption tower absorption when saturated, earlier the A adsorption tower is inhaled the higher nitrogen of middle and upper part purity and introduced B adsorption tower bottom by all extruding gas port 21, utilize the purity nitrogen in the nitrogen buffer tank to reflux again towards Xian B tower, all press when finishing, the nitrogen gas purity in the B adsorption tower all distributes higher from top to bottom, by absorption back outlet nitrogen gas purity can be higher once more, this technology not only helps improving nitrogen gas purity, and can save the air through put amount.
When high pure nitrogen finally arrived the adsorption tower top, one deck first arcuate socket web plate 8 was arranged at the top of carbon molecular sieve, and the gas communication volume is big, allowed nitrogen flow out from two air inlet pipe of nitrogen outlet device 9.Having above just one or many cylinders that carbon molecular sieve 10 is entered at adsorption tower compresses.Isolate the compress gasket of holding concurrently with 6 conducts of the first coconut palm pad when compressing, the guarantee carbon molecular sieve can not be subjected to powerful external force and pulverize.Clamping cylinder 1 is provided with carbon potential alarm 2, and device has spacing alarm and final two slide plates of reporting to the police simultaneously, satisfies the monitoring property in the molecular sieve infall process.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. the adsorption tower of a multiple-hearth structure, mainly comprise tower body (23), the top of tower body (23) is provided with clamping cylinder (1), push rod (4), piston (5), cylinder (3) and filler cylinder (7), be provided with molecular sieve (10) in the tower body (23), it is characterized in that: described filler cylinder (7) bottom is provided with the first arcuate socket web plate (8), nitrogen outlet device (9) is arranged on tower body (23) inside, its import is connected with the first arcuate socket web plate (8), and its finished product nitrogen outlet (22) passes outside tower body (23) inwall is exposed to; The bottom of tower body (23) is provided with the second coconut palm pad (12) that contacts with molecular sieve (10), be provided with the second arcuate socket web plate (13) below the second coconut palm pad (12), be provided with drier (15) in the cavity between the second coconut palm pad (12) and the second arcuate socket web plate (13), be provided with porcelain ball (16) in the cavity between the flight whirlwind disperser (17) at the second arcuate socket web plate (13) and lower openings place, flight whirlwind disperser (17) is connected with gas muffler outlet (19), compressed air inlet (20) by gas diverter (18).
2. the adsorption tower of multiple-hearth structure according to claim 1, it is characterized in that: described tower body is provided with middle part pressure-equalizing device (11), the conduit entrance of this device extends upward in the middle and upper part of tower body (23), its outlet (21) of all calming the anger is passed outside tower body (23) inwall is exposed to, and is used for another adsorption tower is all pressed.
3. the adsorption tower of multiple-hearth structure according to claim 1 is characterized in that: described piston (5) is provided with the first coconut palm pad (6) that is used to isolate double compress gasket on seal face.
4. the adsorption tower of multiple-hearth structure according to claim 1 is characterized in that: described clamping cylinder (1) is provided with carbon potential alarm (2).
5. the adsorption tower of multiple-hearth structure according to claim 1 is characterized in that: the lower position of described tower body (23) is provided with device for discharging (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201070789U CN201023020Y (en) | 2007-03-09 | 2007-03-09 | Adsorption tower for composite bed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201070789U CN201023020Y (en) | 2007-03-09 | 2007-03-09 | Adsorption tower for composite bed structure |
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| CN201023020Y true CN201023020Y (en) | 2008-02-20 |
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| CNU2007201070789U Expired - Fee Related CN201023020Y (en) | 2007-03-09 | 2007-03-09 | Adsorption tower for composite bed structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029099A (en) * | 2010-11-02 | 2011-04-27 | 开封空分集团有限公司 | Molecular sieve compressing and gas distribution integrated device |
| CN101683582B (en) * | 2008-09-24 | 2011-09-21 | 上海瑞气气体设备有限公司 | Molecular sieve compressing device of pressure swing adsorption air separation unit adsorption tower |
| CN103055765A (en) * | 2012-12-25 | 2013-04-24 | 杭州盛大高科技机电有限公司 | Dedicated gas preparation device of vapour-pressure type multi-rod driving piston |
| CN106964236A (en) * | 2017-04-14 | 2017-07-21 | 杭州天利空分设备制造有限公司 | Multistage diffusion nitrogen-making device |
| CN113788463A (en) * | 2021-09-02 | 2021-12-14 | 郭华龙 | Molecular sieve nitrogen making machine |
| CN114733317A (en) * | 2022-05-10 | 2022-07-12 | 威海柏林圣康空氧科技有限公司 | Multi-level molecular sieve adsorption tower device |
-
2007
- 2007-03-09 CN CNU2007201070789U patent/CN201023020Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101683582B (en) * | 2008-09-24 | 2011-09-21 | 上海瑞气气体设备有限公司 | Molecular sieve compressing device of pressure swing adsorption air separation unit adsorption tower |
| CN102029099A (en) * | 2010-11-02 | 2011-04-27 | 开封空分集团有限公司 | Molecular sieve compressing and gas distribution integrated device |
| CN102029099B (en) * | 2010-11-02 | 2013-04-17 | 开封空分集团有限公司 | Molecular sieve compressing and gas distribution integrated device |
| CN103055765A (en) * | 2012-12-25 | 2013-04-24 | 杭州盛大高科技机电有限公司 | Dedicated gas preparation device of vapour-pressure type multi-rod driving piston |
| CN103055765B (en) * | 2012-12-25 | 2015-07-22 | 杭州盛大高科技机电有限公司 | Dedicated gas preparation device of vapour-pressure type multi-rod driving piston |
| CN106964236A (en) * | 2017-04-14 | 2017-07-21 | 杭州天利空分设备制造有限公司 | Multistage diffusion nitrogen-making device |
| CN113788463A (en) * | 2021-09-02 | 2021-12-14 | 郭华龙 | Molecular sieve nitrogen making machine |
| CN113788463B (en) * | 2021-09-02 | 2023-12-29 | 广西柳钢新锐气体有限公司 | Molecular sieve nitrogen making machine |
| CN114733317A (en) * | 2022-05-10 | 2022-07-12 | 威海柏林圣康空氧科技有限公司 | Multi-level molecular sieve adsorption tower device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20140309 |