CN105080288A - Adsorption column for low-dew-point pressure swing adsorption nitrogen making machine - Google Patents
Adsorption column for low-dew-point pressure swing adsorption nitrogen making machine Download PDFInfo
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- CN105080288A CN105080288A CN201510528363.7A CN201510528363A CN105080288A CN 105080288 A CN105080288 A CN 105080288A CN 201510528363 A CN201510528363 A CN 201510528363A CN 105080288 A CN105080288 A CN 105080288A
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Abstract
The invention provides an adsorption column for a low-dew-point pressure swing adsorption nitrogen making machine. The adsorption column comprises a material gas inlet, a nitrogen outlet, an oxygen-nitrogen separation area and an adsorption area used for drying gas. Adsorber is disposed in the oxygen-nitrogen separation area. The adsorption area includes a first adsorption area and a second adsorption area; the first adsorption area is located below the oxygen-nitrogen separation area; the second adsorption area is located above the oxygen-nitrogen separation area. By dividing the inside of the adsorption column into the first adsorption area, the oxygen-nitrogen separation area and the second adsorption area, functions of primary dewatering, oxygen-nitrogen separation and high-precision dewatering are achieved, thereby achieving direct making of low-dew-point nitrogen, overcoming the complexity of a traditional process for making the low-dew-point nitrogen and decreasing consumption of valuable nitrogen and electricity; when resurgent gases made by the pressure swing adsorption nitrogen making machine, such as oxygen and little nitrogen, are discharged, water can be brought away, and regeneration of drying agent is achieved; energy consumption of the nitrogen making machine is not increased, the defects of the traditional nitrogen making machine are overcome, and the low-dew-point pressure swing adsorption nitrogen making machine with the adsorption column is widely applicable.
Description
Technical field
The present invention relates to technology swing adsorption nitrogen producing apparatus field, particularly relate to a kind of low dew point varying-voltage adsorption nitrogen machine adsorption tower.
Background technology
At present, most widely used in nitrogen-making device is PSA nitrogen making machine, i.e. varying-voltage adsorption nitrogen machine, and it is raw material with air, using molecular sieve as adsorbent, uses pressure-variable adsorption principle, utilizes molecular sieve to make nitrogen and oxygen separating to the selective absorption of oxygen and nitrogen.Compared with traditional nitrogen making machine, it has, and technological process is simple, automaticity is high, aerogenesis is fast, energy consumption is low, product purity can need to regulate according to user in a big way, the features such as convenient operating maintenance, operating cost are lower, device adaptability is stronger, become the first-selection of user gradually.
Existing PSA nitrogen making machine mostly adopts simple composite bed process, once can only produce the nitrogen that dew point is-40 DEG C, want to produce-60 DEG C and above nitrogen can only increase nitrogen drying device on finished product nitrogen pipeline, high dew point drier mostly adopts pressure-variable adsorption (PSA) to gather the technique of Temp .-changing adsorption (TSA), not only complex process, trouble point is many, invest huge, and valuable finished product nitrogen and electric energy will be consumed, as nitrogen consumption about 5%, power consumption every hundred cubes of about 12KW.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The object of the present invention is to provide a kind of low dew point varying-voltage adsorption nitrogen machine adsorption tower.
Low dew point varying-voltage adsorption nitrogen machine adsorption tower provided by the invention comprises raw air entrance and nitrogen outlet, also comprise oxygen nitrogen Disengagement zone and the adsorption zone for dry gas, oxygen nitrogen is provided with adsorbent in Disengagement zone, adsorption zone comprises the first adsorption zone and the second adsorption zone, first adsorption zone is positioned at the below of oxygen nitrogen Disengagement zone, and the second adsorption zone is positioned at the top of oxygen nitrogen Disengagement zone.
Compared with prior art, low dew point varying-voltage adsorption nitrogen machine adsorption tower tool provided by the invention has the following advantages:
1, by dividing the first adsorption zone, oxygen nitrogen Disengagement zone and the second adsorption zone in the inside of adsorption tower, realize the function elementaryly dewatered, oxygen nitrogen is separated, high accuracy dewaters, thus realize the order directly producing low dew point nitrogen, overcome the technique that tradition produces low dew point nitrogen complexity, decrease valuable nitrogen and the energy consumption of electric energy.
The regeneration gas that 2, low dew point varying-voltage adsorption nitrogen machine can be utilized to produce, as taken away moisture when discharging oxygen and a small amount of nitrogen, realizes regenerated desiccant, and does not increase the energy consumption of nitrogen making machine, breach the deficiency of traditional nitrogen making machine, have practicality widely.
Accompanying drawing explanation
Below with reference to the accompanying drawings illustrate embodiments of the invention, above and other objects, features and advantages of the present invention can be understood more easily.Parts in accompanying drawing are just in order to illustrate principle of the present invention.In the accompanying drawings, same or similar technical characteristic or parts will adopt same or similar Reference numeral to represent.
The low dew point varying-voltage adsorption nitrogen machine adsorption tower that Fig. 1 provides for the embodiment of the present invention.
Description of reference numerals:
1-raw air entrance 2-nitrogen outlet 3-nitrogen oxygen separating district
4-first adsorption zone 5-second adsorption zone 6-first flow-disturbing layer
7-second flow-disturbing layer
Detailed description of the invention
With reference to the accompanying drawings embodiments of the invention are described.The element described in an accompanying drawing of the present invention or a kind of embodiment and feature can combine with the element shown in one or more other accompanying drawing or embodiment and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.
As shown in Figure 1, the low dew point varying-voltage adsorption nitrogen machine adsorption tower that the present embodiment provides comprises raw air entrance 1 and nitrogen outlet 2, also comprise oxygen nitrogen Disengagement zone 3 and the adsorption zone for dry gas, adsorbent is provided with in oxygen nitrogen Disengagement zone 3, adsorption zone comprises the first adsorption zone 4 and the second adsorption zone 5, first adsorption zone 4 is positioned at the below of oxygen nitrogen Disengagement zone 3, and the second adsorption zone 5 is positioned at the top of oxygen nitrogen Disengagement zone 3.
In the present embodiment, raw air entrance 1 is positioned at the lower end of whole adsorption tower, and nitrogen outlet 2 is positioned at the lower end of whole adsorption tower.Adsorption tower comprises oxygen nitrogen Disengagement zone 3 and the adsorption zone for dry gas, and wherein nitrogen oxygen separating district comprises adsorbent, and it is used for the oxygen in absorbed air; Adsorption zone comprises and is positioned at the second adsorption zone 5 above nitrogen oxygen separating district and the first adsorption zone 4, first adsorption zone 4 be positioned at below nitrogen oxygen separating district 3 and is used for air and adsorbs in advance, and the second adsorption zone 5 is used for the nitrogen that depth drying produces.Whole adsorption tower can realize the function elementaryly dewatered, oxygen nitrogen is separated, high accuracy dewaters, thus realizes the order directly producing low dew point nitrogen, overcomes the technique that tradition produces low dew point nitrogen complexity, decreases valuable nitrogen and the energy consumption of electric energy.Meanwhile, when the oxygen of discharging in adsorption tower and a small amount of nitrogen, can moisture be taken away, realize regenerated desiccant, and not increase the energy consumption of nitrogen making machine, breach the deficiency of traditional nitrogen making machine, have practicality widely.
Preferably, adsorbent is carbon molecular sieve.
In the present embodiment, the adsorbent arranged in nitrogen oxygen separating district 3 is carbon molecular sieve.Because carbon molecular sieve inside includes a large amount of micropores, these micropores allow the little molecule of aerodynamic size to be diffused rapidly in hole, with entering of limit major diameter molecule, because the gas molecule relative diffusion speed of different size there are differences, the component of admixture of gas can be effectively separated.Because the micropore size in carbon molecular sieve can only by oxygen with not by nitrogen, being separated of oxygen and nitrogen in the existing air of historical facts or anecdotes, reaches the object of nitrogen processed.
Preferably, molecular sieve desiccant is provided with in the first adsorption zone 4 and the second adsorption zone 5.
In the present embodiment, molecular sieve desiccant is provided with respectively in the first adsorption zone 4 and the second adsorption zone 5, molecular sieve desiccant has very strong adsorptivity for hydrone, in the first adsorption zone 4, arrange molecular sieve desiccant can realize carrying out pre-dried to the air entered in adsorption tower, realize elementary dewatering, in second adsorption zone 5, molecular sieve desiccant is set, the moisture in degree of depth removing oxygen separation nitrogen out can be realized, reach and obtain low dew point nitrogen.In use, according to the loadings of the gas production determination dry molecular sieves of nitrogen making machine, can guarantee that depth drying molecular sieve is operated in optimum state.
Preferably, be provided with between the first adsorption zone 4 and oxygen nitrogen Disengagement zone 3 between first flow-disturbing layer 6, second adsorption zone 5 and oxygen nitrogen Disengagement zone 3 and be provided with the second flow-disturbing layer 7.
In the present embodiment, the first flow-disturbing layer 6 is provided with between the first adsorption zone 4 and oxygen nitrogen Disengagement zone 3, the second flow-disturbing layer 7 is provided with between second adsorption zone 5 and oxygen nitrogen Disengagement zone 3, flow-disturbing layer can realize the rectilinear motion of gas, and then nitrogen separation and degree of drying maximize, and effectively improve purity and the dew point of nitrogen.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. one kind low dew point varying-voltage adsorption nitrogen machine adsorption tower, comprise raw air entrance and nitrogen outlet, it is characterized in that, also comprise oxygen nitrogen Disengagement zone and the adsorption zone for dry gas, adsorbent is provided with in described oxygen nitrogen Disengagement zone, described adsorption zone comprises the first adsorption zone and the second adsorption zone, and described first adsorption zone is positioned at the below of described oxygen nitrogen Disengagement zone, and described second adsorption zone is positioned at the top of described oxygen nitrogen Disengagement zone.
2. low dew point varying-voltage adsorption nitrogen machine adsorption tower according to claim 1, it is characterized in that, described adsorbent is carbon molecular sieve.
3. low dew point varying-voltage adsorption nitrogen machine adsorption tower according to claim 1, is characterized in that, be provided with molecular sieve desiccant in described first adsorption zone and the second adsorption zone.
4. low dew point varying-voltage adsorption nitrogen machine adsorption tower according to claim 1, it is characterized in that, be provided with the first flow-disturbing layer between described first adsorption zone and described oxygen nitrogen Disengagement zone, between described second adsorption zone and described oxygen nitrogen Disengagement zone, be provided with the second flow-disturbing layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510528363.7A CN105080288A (en) | 2015-08-25 | 2015-08-25 | Adsorption column for low-dew-point pressure swing adsorption nitrogen making machine |
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| CN201510528363.7A CN105080288A (en) | 2015-08-25 | 2015-08-25 | Adsorption column for low-dew-point pressure swing adsorption nitrogen making machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106276823A (en) * | 2016-10-14 | 2017-01-04 | 北京石油化工工程有限公司 | Low dew point swing adsorption nitrogen producing apparatus and technological process |
| CN108201775A (en) * | 2016-06-27 | 2018-06-26 | 金华知产婺源信息技术有限公司 | A kind of zero gas consumption compressed air drier by afterheat regeneration |
| CN114748977A (en) * | 2022-04-22 | 2022-07-15 | 山西皆利气体科技有限公司 | Oxygen and nitrogen integrated preparation method and device and computer storage medium |
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| US5697229A (en) * | 1996-08-07 | 1997-12-16 | Air Products And Chemicals, Inc. | Process to produce nitrogen using a double column plus an auxiliary low pressure separation zone |
| CN2322406Y (en) * | 1998-04-24 | 1999-06-09 | 刘学成 | Apparatus for fruits and vegetables gas conditioning preserving storehouse |
| CN1321536A (en) * | 2000-07-07 | 2001-11-14 | 上海化工研究院 | Equipment for producing nitrogen gas by using pressure swing adsorption process |
| CN203333300U (en) * | 2013-05-23 | 2013-12-11 | 中国人民解放军总装备部军械技术研究所 | Full-automatic nitrogen charging device for photoelectric instruments |
| CN204973475U (en) * | 2015-08-25 | 2016-01-20 | 江苏嘉宇流体装备有限公司 | Low dew point adsorption tower for pressure swing adsorption nitrogen generator |
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2015
- 2015-08-25 CN CN201510528363.7A patent/CN105080288A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5697229A (en) * | 1996-08-07 | 1997-12-16 | Air Products And Chemicals, Inc. | Process to produce nitrogen using a double column plus an auxiliary low pressure separation zone |
| CN2322406Y (en) * | 1998-04-24 | 1999-06-09 | 刘学成 | Apparatus for fruits and vegetables gas conditioning preserving storehouse |
| CN1321536A (en) * | 2000-07-07 | 2001-11-14 | 上海化工研究院 | Equipment for producing nitrogen gas by using pressure swing adsorption process |
| CN203333300U (en) * | 2013-05-23 | 2013-12-11 | 中国人民解放军总装备部军械技术研究所 | Full-automatic nitrogen charging device for photoelectric instruments |
| CN204973475U (en) * | 2015-08-25 | 2016-01-20 | 江苏嘉宇流体装备有限公司 | Low dew point adsorption tower for pressure swing adsorption nitrogen generator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201775A (en) * | 2016-06-27 | 2018-06-26 | 金华知产婺源信息技术有限公司 | A kind of zero gas consumption compressed air drier by afterheat regeneration |
| CN106276823A (en) * | 2016-10-14 | 2017-01-04 | 北京石油化工工程有限公司 | Low dew point swing adsorption nitrogen producing apparatus and technological process |
| CN106276823B (en) * | 2016-10-14 | 2018-10-23 | 北京石油化工工程有限公司 | Low dew point swing adsorption nitrogen producing apparatus and technological process |
| CN114748977A (en) * | 2022-04-22 | 2022-07-15 | 山西皆利气体科技有限公司 | Oxygen and nitrogen integrated preparation method and device and computer storage medium |
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