CN103143334A - Molecular sieve activation device for pressure swing adsorption oxygen preparation device - Google Patents
Molecular sieve activation device for pressure swing adsorption oxygen preparation device Download PDFInfo
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- CN103143334A CN103143334A CN2013100708792A CN201310070879A CN103143334A CN 103143334 A CN103143334 A CN 103143334A CN 2013100708792 A CN2013100708792 A CN 2013100708792A CN 201310070879 A CN201310070879 A CN 201310070879A CN 103143334 A CN103143334 A CN 103143334A
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Abstract
The invention belongs to the technical field of an activation device, and particularly relates to a molecular sieve activation device for a pressure swing adsorption oxygen preparation device, aiming at solving the problems that the water of a molecular sieve of the pressure swing adsorption oxygen preparation device is difficult to remove in the prior art, and the like. The molecular sieve activation device for the pressure swing adsorption oxygen preparation device comprises a first switching mechanism and a second switching mechanism, wherein the first switching mechanism is connected with a heater and an oxygen outlet respectively; the heater is connected with an automatic activated gas switch regulating valve; the second switching mechanism is connected with a dry air inlet and an emptying device respectively; the dry air inlet is connected with the automatic activated gas switch regulating valve; and the first switching mechanism, the second switching mechanism and the automatic activated gas switch regulating valve are respectively connected with a controller. The molecular sieve activation device for the pressure swing adsorption oxygen preparation device has the advantages that the water of the molecular sieve of the pressure swing adsorption oxygen preparation device can be removed, the performances of the pressure swing adsorption oxygen preparation device are guaranteed, and the service life of the pressure swing adsorption oxygen preparation device is prolonged under the condition that the normal use of the pressure swing adsorption oxygen preparation device is not influenced.
Description
Technical field
The invention belongs to the activation equipment technical field, relate to a kind of molecular sieve activating apparatus, especially relate to a kind of THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus.
Background technology
In modern industry,, cheaply gas high-quality in order to obtain, pressure-variable adsorption is widely used, pressure swing adsorption system employing two towers or the adsorbent bed more than two towers be switch operating in turn, sorbing material generally adopts molecular sieve, THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE adopts zeolite molecular sieve, this molecular sieve is a kind of sodium type adsorbent of X-type crystal structure, it generally is used for the dewatering and removing carbon dioxide of purifier of cryogenic air separation unit, also be used for the water absorbent that removes of absorption drier, its existence can not break away from water fully.The raw material of oxygenerator is compressed air, contains many moisture, and hydrone than important than large many of nitrogen molecular, the existence of hydrone will have a strong impact on molecular sieve to the adsorption capacity of nitrogen.So will must reduce the Adsorbed water molecular amount as the oxygen molecular sieve, usually need to add lyophobic dust, can adsorb the less screening molecule of diameter.But after the interpolation lyophobic dust, can cause to the absorption property of molecular sieve larger loss, thus the adding proportion of lyophobic dust be difficult to be accepted or rejected, and reduce purchase cost and operating cost that moisture in raw material compressed air will increase oxygenerator.
The problem that exists in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.for example, Chinese patent literature discloses a kind of pressure swing adsorption oxygen making device with the blowback heating tank [application number: 201010217816.1], comprises air blast, the first pneumatic transfer valve, the second pneumatic transfer valve, the 3rd pneumatic transfer valve, the 4th pneumatic transfer valve, the 5th pneumatic transfer valve, the 6th pneumatic transfer valve, the 7th pneumatic transfer valve, the 8th pneumatic transfer valve, the 9th pneumatic transfer valve, the tenth pneumatic transfer valve, the 11 pneumatic transfer valve, pneumatic control valve, the first muffler, the second muffler, vavuum pump, the first adsorption tower, the second adsorption tower, blowback heating tank and surge tank, air blast passes through the first pneumatic transfer valve and is connected the muffler connection, the first muffler is connected with vavuum pump by the 11 pneumatic transfer valve, vavuum pump also is connected with the second muffler, air blast is connected with the first adsorption tower by the second pneumatic transfer valve, air blast is connected with the second adsorption tower by the 3rd pneumatic transfer valve, the 4th pneumatic transfer valve, the end of the 5th pneumatic transfer valve between the first adsorption tower and the second adsorption tower, pneumatic control valve, the 6th pneumatic transfer valve, the other end of the 7th pneumatic transfer valve between the first adsorption tower and the second adsorption tower, the blowback heating tank is connected with the first adsorption tower by the 8th pneumatic transfer valve, and the blowback heating tank is connected with surge tank by the tenth pneumatic transfer valve.
Such scheme has improved prior art to a certain extent, makes adsorbent can obtain effective regeneration, has improved performance of the adsorbent and stabilization of equipment performance.Yet,, want within the so short time heating of blowback gas and regeneration, blast-cold bed are difficult to realize in actual device, so this scheme lacks the practicality in actual processing due to the switching cycle of the absorbing cylinder of oxygenerator about 70 seconds.Thereby, the improvement of oxygen regenerating molecular sieve technology is still remained to be further improved.
Summary of the invention
The objective of the invention is for the problems referred to above, provide a kind of reasonable in design, simple in structure, can effectively remove the moisture that the pressure swing adsorption oxygen making device molecular sieve is difficult to desorption, guarantee the pressure swing adsorption oxygen making device performance, in the situation that do not affect normal use and the driving rate of pressure-swing absorption apparatus, the THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus that extends its service life.
for achieving the above object, the present invention has adopted following technical proposal: this THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, be connected on two absorbing cylinders, comprise the first switching mechanism that is communicated with the top of two absorbing cylinders and the second switching mechanism that is communicated with the bottom of two absorbing cylinders, described the first switching mechanism and heater and oxygen outlet are connected respectively, be connected with activated gas automatic switch control valve on heater, described the second switching mechanism and dry air entrance and emptying device are connected respectively, described dry air entrance is connected with activated gas automatic switch control valve, described the first switching mechanism, the second switching mechanism and activated gas automatic switch control valve all are connected with controller.
This device can be arranged on the device that becomes one on pressure swing adsorption oxygen making device, also can overlap pressure swing adsorption oxygen making device more and share a mobile auto-activation device of cover.This device is in the pressure swing adsorption oxygen making device shutdown or between turn(a)round; after manual opener; device is operation automatically; autoshutdown single unit system after completing to activation; do not affect normal use and the driving rate of pressure swing adsorption oxygen making device; can in time, effectively remove the moisture that the pressure swing adsorption oxygen making device molecular sieve is difficult to desorption, guarantee the pressure swing adsorption oxygen making device performance, extend its service life.
Further, in above-mentioned THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, be provided with the first temperature transmitter between described heater and the first switching mechanism, be provided with the second temperature transmitter between described emptying device and the second switching mechanism, described the first temperature transmitter be connected temperature transmitter and all be connected with controller.
Further, in above-mentioned THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, be connected with the blowback valve on described the first switching mechanism.
As preferably, in above-mentioned THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, described the first switching mechanism comprises interconnective the first pressure-variable adsorption automatic valve and the second pressure-variable adsorption automatic valve, and described the second switching mechanism comprises interconnective the 3rd pressure-variable adsorption automatic valve and the 4th pressure-variable adsorption automatic valve.
As preferably, in above-mentioned THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, be provided with the activated gas pressure-regulating valve between described dry air entrance and activated gas automatic switch control valve, be provided with the activated gas flowmeter between described heater and the first switching mechanism.
As preferably, in above-mentioned THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, described the first pressure-variable adsorption automatic valve, the second pressure-variable adsorption automatic valve, the 3rd pressure-variable adsorption automatic valve and the 4th pressure-variable adsorption automatic valve are magnetic valve.The version of the first pressure-variable adsorption automatic valve here, the second pressure-variable adsorption automatic valve, the 3rd pressure-variable adsorption automatic valve and the 4th pressure-variable adsorption automatic valve all can be selected according to actual needs.
As preferably, in above-mentioned THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, described controller comprises the PLC control system.The version of the controller here can be taked according to the working control needs alternative of multiple various kinds.
the operation principle of this THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus is: when THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE is shut down, if amount of oxygen or the oxygen purity of THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE output do not reach nominal parameter, controller opens, first activate an absorbing cylinder according to preset program: open activated gas automatic switch control valve, the first pressure-variable adsorption automatic valve and the 3rd pressure-variable adsorption automatic valve, enter from the top of absorbing cylinder after activated gas heats up by heater pass after bed emptying by emptying device, when the temperature of the first temperature transmitter arrives 200 ℃, oneself close one group of heater in heater, when the temperature of the second temperature transmitter reaches 105 ℃, oneself close another group heater of heater, heater quits work, the activation of an absorbing cylinder complete beginning blast-cold of heating: close valve activated gas automatic switch control valve, open the second pressure-variable adsorption automatic valve and the 4th pressure-variable adsorption automatic valve, blast-cold gas enters from the bottom of another absorbing cylinder cylinder after the bed of absorbing cylinder from the top of the absorbing cylinder that is activated again and enters this absorbing cylinder bed, emptying after blast-cold, complete the activation process to this absorbing cylinder during lower than 40 ℃ when the temperature of the second temperature transmitter.Controller activates another absorbing cylinder according to preset program, to the activation process of the activation process of this absorbing cylinder and first absorbing cylinder in like manner, does not set forth at this.
Compared with prior art; the advantage of this THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus is: 1, can in time, effectively remove the moisture that the pressure swing adsorption oxygen making device molecular sieve is difficult to desorption; guarantee the pressure swing adsorption oxygen making device performance; 2, shut down or move between turn(a)round at pressure swing adsorption oxygen making device; autoshutdown single unit system after completing to activation; do not affect normal use and the driving rate of pressure-swing absorption apparatus, extend its service life.
Description of drawings
Fig. 1 is structural representation provided by the invention.
In figure, absorbing cylinder 1, the first switching mechanism 2, the first pressure-variable adsorption automatic valve 21, the second pressure-variable adsorption automatic valve 22, the second switching mechanism 3, the 3rd pressure-variable adsorption automatic valve 31, the 4th pressure-variable adsorption automatic valve 32, heater 4, oxygen outlet 5, activated gas automatic switch control valve 6, dry air entrance 7, emptying device 8, controller 9, the first temperature transmitter 10, the second temperature transmitter 11, blowback valve 12, activated gas pressure-regulating valve 13, activated gas flowmeter 14.
The specific embodiment
The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
as shown in Figure 1, this THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, be connected on two absorbing cylinders 1, comprise the first switching mechanism 2 that is communicated with the top of two absorbing cylinders 1 and the second switching mechanism 3 that is communicated with the bottom of two absorbing cylinders 1, the first switching mechanism 2 is connected with oxygen outlet with heater 4 and is connected respectively, be connected with activated gas automatic switch control valve 6 on heater 4, the second switching mechanism 3 is connected with emptying device with dry air entrance 7 and is connected respectively, dry air entrance 7 is connected with activated gas automatic switch control valve 6, be provided with the first temperature transmitter 10 between heater 4 and the first switching mechanism 2, be provided with the second temperature transmitter 11 between emptying device 8 and the second switching mechanism 3, be connected with blowback valve 12 on the first switching mechanism 2, the first switching mechanism 2, the second switching mechanism 3, activated gas automatic switch control valve 6, the first temperature transmitter 10 be connected temperature transmitter 11 and all be connected with controller 9.
This device can be arranged on the device that becomes one on pressure swing adsorption oxygen making device, also can overlap pressure swing adsorption oxygen making device more and share a mobile auto-activation device of cover.In the pressure swing adsorption oxygen making device shutdown or between turn(a)round; after manual opener; device is operation automatically; autoshutdown single unit system after completing to activation; do not affect normal use and the driving rate of pressure swing adsorption oxygen making device; can in time, effectively remove the moisture that the pressure swing adsorption oxygen making device molecular sieve is difficult to desorption, guarantee the pressure swing adsorption oxygen making device performance, extend its service life.
as a kind of technical scheme of comparatively optimizing, in the present embodiment, the first switching mechanism 2 comprises interconnective the first pressure-variable adsorption automatic valve 21 and the second pressure-variable adsorption automatic valve 22, the second switching mechanism 3 comprises interconnective the 3rd pressure-variable adsorption automatic valve 31 and the 4th pressure-variable adsorption automatic valve 32, be provided with activated gas pressure-regulating valve 13 between dry air entrance 7 and activated gas automatic switch control valve 6, be provided with activated gas flowmeter 14 between heater 4 and the first switching mechanism 2, the first pressure-variable adsorption automatic valve 21, the second pressure-variable adsorption automatic valve 22, the 3rd pressure-variable adsorption automatic valve 31 and the 4th pressure-variable adsorption automatic valve 32 are magnetic valve, controller 9 comprises the PLC control system.The version of the first pressure-variable adsorption automatic valve 21 here, the second pressure-variable adsorption automatic valve 22, the 3rd pressure-variable adsorption automatic valve 31 and the 4th pressure-variable adsorption automatic valve 32 all can be selected according to actual needs, and the version of controller 9 can be taked according to the working control needs alternative of multiple various kinds.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
although this paper has more used absorbing cylinder 1, the first switching mechanism 2, the first pressure-variable adsorption automatic valve 21, the second pressure-variable adsorption automatic valve 22, the second switching mechanism 3, the 3rd pressure-variable adsorption automatic valve 31, the 4th pressure-variable adsorption automatic valve 32, heater 4, oxygen outlet 5, activated gas automatic switch control valve 6, dry air entrance 7, emptying device 8, controller 9, the first temperature transmitter 10, the second temperature transmitter 11, blowback valve 12, activated gas pressure-regulating valve 13, activated gas flowmeter 14 terms such as grade, but do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present invention, and they are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (7)
1. THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, be connected on two absorbing cylinders (1), it is characterized in that, this device comprises the first switching mechanism (2) that is communicated with the top of two absorbing cylinders (1) and the second switching mechanism (3) that is communicated with the bottom of two absorbing cylinders (1), described the first switching mechanism (2) is connected 5 with heater (4) with oxygen outlet) be connected respectively, be connected with activated gas automatic switch control valve (6) on heater (4), described the second switching mechanism (3) is connected 8 with dry air entrance (7) with emptying device) be connected respectively, described dry air entrance (7) is connected with activated gas automatic switch control valve (6), described the first switching mechanism (2), the second switching mechanism (3) is connected 6 with activated gas automatic switch control valve) all be connected with controller (9).
2. THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus according to claim 1, it is characterized in that, be provided with the first temperature transmitter (10) between described heater (4) and the first switching mechanism (2), be provided with the second temperature transmitter (11) between described emptying device (8) and the second switching mechanism (3), described the first temperature transmitter (10) be connected temperature transmitter (11) and all be connected with controller (9).
3. THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus according to claim 2, is characterized in that, is connected with blowback valve (12) on described the first switching mechanism (2).
4. according to claim 1 and 2 or 3 described THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, it is characterized in that, described the first switching mechanism (2) comprises interconnective the first pressure-variable adsorption automatic valve (21) and the second pressure-variable adsorption automatic valve (22), and described the second switching mechanism (3) comprises interconnective the 3rd pressure-variable adsorption automatic valve (31) and the 4th pressure-variable adsorption automatic valve (32).
5. according to claim 1 and 2 or 3 described THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, it is characterized in that, be provided with activated gas pressure-regulating valve (13) between described dry air entrance (7) and activated gas automatic switch control valve (6), be provided with activated gas flowmeter (14) between described heater (4) and the first switching mechanism (2).
6. THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus according to claim 4, it is characterized in that, described the first pressure-variable adsorption automatic valve (21), the second pressure-variable adsorption automatic valve (22), the 3rd pressure-variable adsorption automatic valve (31) and the 4th pressure-variable adsorption automatic valve (32) are magnetic valve.
7. according to claim 1 and 2 or 3 described THE PRESSURE SWING ADSORPTION OXYGEN GENERATING DEVICE molecular sieve activating apparatus, is characterized in that, described controller (9) comprises the PLC control system.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405989A (en) * | 2013-08-19 | 2013-11-27 | 上海启元空分技术发展股份有限公司 | Control cabinet device of air type purifier device and control method thereof |
| CN106268723A (en) * | 2016-08-15 | 2017-01-04 | 山东洪达化工有限公司 | A kind of convenient, oxygen molecular sieve situ activation method processed of safety and environmental protection |
| CN107321141A (en) * | 2017-06-05 | 2017-11-07 | 大唐姜堰燃机热电有限责任公司 | It is air-dried purifier |
| CN109529796A (en) * | 2018-12-29 | 2019-03-29 | 赤峰富邦铜业有限责任公司 | A kind of apparatus and method for restoring omnibus control system molecular sieve activation |
| CN110470508A (en) * | 2019-09-17 | 2019-11-19 | 付丽华 | A kind of medical inspection urine sampling equipment |
| CN115428785A (en) * | 2022-08-29 | 2022-12-06 | 上海健耕医药科技股份有限公司 | Oxygen injection perfusion system for isolated organ and operation method |
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| CN101036849A (en) * | 2007-01-24 | 2007-09-19 | 河南中原绿能高科有限责任公司 | Regenerated gas low-pressure circulation three-tower process for molecular sieve regeneration |
| CN102311098A (en) * | 2010-07-02 | 2012-01-11 | 上海瑞气气体设备有限公司 | Pressure varying adsorption oxygen preparing device with back blowing heating tank |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101036849A (en) * | 2007-01-24 | 2007-09-19 | 河南中原绿能高科有限责任公司 | Regenerated gas low-pressure circulation three-tower process for molecular sieve regeneration |
| CN102311098A (en) * | 2010-07-02 | 2012-01-11 | 上海瑞气气体设备有限公司 | Pressure varying adsorption oxygen preparing device with back blowing heating tank |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405989A (en) * | 2013-08-19 | 2013-11-27 | 上海启元空分技术发展股份有限公司 | Control cabinet device of air type purifier device and control method thereof |
| CN103405989B (en) * | 2013-08-19 | 2017-02-08 | 上海启元空分技术发展股份有限公司 | Control cabinet device of air type purifier device and control method thereof |
| CN106268723A (en) * | 2016-08-15 | 2017-01-04 | 山东洪达化工有限公司 | A kind of convenient, oxygen molecular sieve situ activation method processed of safety and environmental protection |
| CN107321141A (en) * | 2017-06-05 | 2017-11-07 | 大唐姜堰燃机热电有限责任公司 | It is air-dried purifier |
| CN109529796A (en) * | 2018-12-29 | 2019-03-29 | 赤峰富邦铜业有限责任公司 | A kind of apparatus and method for restoring omnibus control system molecular sieve activation |
| CN110470508A (en) * | 2019-09-17 | 2019-11-19 | 付丽华 | A kind of medical inspection urine sampling equipment |
| CN115428785A (en) * | 2022-08-29 | 2022-12-06 | 上海健耕医药科技股份有限公司 | Oxygen injection perfusion system for isolated organ and operation method |
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