CN210635729U - Quick purity device that promotes of pressure swing adsorption nitrogen making start - Google Patents
Quick purity device that promotes of pressure swing adsorption nitrogen making start Download PDFInfo
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- CN210635729U CN210635729U CN201921074335.2U CN201921074335U CN210635729U CN 210635729 U CN210635729 U CN 210635729U CN 201921074335 U CN201921074335 U CN 201921074335U CN 210635729 U CN210635729 U CN 210635729U
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- way pipeline
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- swing adsorption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
The utility model relates to an empty energy-conserving technical field that divides of pressure swing adsorption, and disclose a pressure swing adsorption nitrogen generation start promotes purity device fast, including third control flap, third control flap's right side has fourth control flap and fifth control flap through the fixed intercommunication of tee bend pipeline, fourth control flap's left side has first control flap and first adsorption tower through the fixed intercommunication of tee bend pipeline, fifth control flap's right side has second control flap and second adsorption tower through the fixed intercommunication of tee bend pipeline. The utility model discloses, because of the buffer tank internal pressure is lower, gas replacement speed is relatively fast, and gas purity can promote rapidly, after buffer tank internal pressure reached normal operating condition, switches normal work ninth control flap, and buffer tank air flow is adjusted by the fourth by the valve, and pressure swing adsorption equipment gets into normal operating condition, and required time when shortening pressure swing adsorption air separation product gas and reaching qualified purity, the energy saving consumes.
Description
Technical Field
The utility model relates to an empty energy-conserving technical field that divides of pressure swing adsorption especially relates to a pressure swing adsorption nitrogen making machine promotes purity device fast.
Background
Pressure swing adsorption separation methods in industrial air separation are increasingly used, and pressure swing adsorption air separation equipment needs a period of product gas purity improvement when being started up to reach the qualified index required by gas utilization. Especially, the time for improving the purity is about more than one hour when the high-purity (more than or equal to 99.99 percent) nitrogen is prepared by pressure swing adsorption. This brings great inconvenience and energy loss to users who use pressure swing adsorption apparatus discontinuously, and needs to start the pressure swing adsorption air separation plant a long time ahead of time when using the required gas, and even in order to avoid influencing the production, the pressure swing adsorption air separation plant has to be started when not using the gas, causing great waste.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: when the needed gas is used, the pressure swing adsorption air separation equipment needs to be started for a long time, even in order to avoid influencing production, the pressure swing adsorption air separation equipment has to be started when the gas is not used, so that great waste is caused, and the provided device for quickly improving the purity when the pressure swing adsorption nitrogen preparation machine is started.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a pressure swing adsorption nitrogen system start-up promotes purity device fast, includes third control valve, the right side of third control valve is through the fixed intercommunication of three-way pipeline fourth control valve and fifth control valve, the left side of fourth control valve is through the fixed intercommunication of three-way pipeline first control valve and first adsorption tower, the right side of fifth control valve is through the fixed intercommunication of three-way pipeline second control valve and second adsorption tower, the right side of first control valve and the left side of second control valve all have the silencer through the fixed intercommunication of three-way pipeline.
The top of first adsorption tower has sixth control valve, seventh control valve and first stop valve through the fixed intercommunication of four-way pipeline, the right side of first stop valve and the top of second adsorption tower all have second stop valve and eighth control valve through the fixed intercommunication of four-way pipeline, the right side of sixth control valve and the left side of second stop valve pass through the fixed intercommunication of two-way pipeline, the right side of seventh control valve and the left side of eighth control valve all have ninth control valve and tenth control valve through the fixed intercommunication of four-way pipeline, the right side of tenth control valve has the third stop valve through the fixed intercommunication of two-way pipeline, the right side of ninth control valve and the right side of third stop valve have the buffer tank through the fixed intercommunication of three-way pipeline.
Preferably, the air outlet end of the buffer tank is fixedly communicated with a filter through a two-way pipeline, the air outlet end of the filter is fixedly communicated with a connecting pipe through a two-way pipeline, the top of the connecting pipe is fixedly communicated with a flow meter, and the air outlet end of the flow meter is fixedly communicated with a fourth stop valve and an eleventh control valve through a three-way pipeline.
Preferably, a gas analyzer is fixedly connected to the surface of the connecting pipe, and a measuring end of the gas analyzer penetrates through the connecting pipe and extends into the connecting pipe.
Preferably, the filter includes the shell, the surperficial threaded connection of shell has the connection lid, the inner wall top sliding connection of connection lid has the connecting plate, the surface of connecting plate and the inner wall sliding connection of shell, the bottom fixedly connected with of connecting plate filters the sleeve, filter the telescopic bottom and the inner wall bottom sliding connection of shell, the bottom fixedly connected with support column of shell, the equal fixed intercommunication in the left and right sides of shell has the trachea, left side the trachea left side is through the bi-pass pipeline with the fixed connection of giving vent to anger of buffer tank, right side the tracheal right side and the left side fixed connection of connecting pipe, the equal sliding connection in the preceding back both sides of filtering the sleeve has sealed piece and doctor-bar, the back of sealed piece and the front of doctor-bar all with the inner wall fixed connection of shell.
Preferably, the upper surface of connecting the lid passes through support frame fixedly connected with driving motor, driving motor's output passes through shaft coupling fixedly connected with pivot, the surface of pivot and the inner wall sliding connection who connects the lid, the bottom of pivot and the upper surface fixed connection of connecting plate.
Preferably, the height of the sealing block, the height of the scraping blade and the height of the filtering sleeve are all equal.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model closes the air outlet valve of the main adsorption tower within a few minutes before the pressure swing adsorption equipment is just started, opens the sixth control valve, so that the regenerated gas sweeps another adsorption tower through the two-way pipeline, after the pressure swing adsorption equipment circulates for a plurality of periods, closes the sixth control valve, opens the tenth control valve, controls the gas outlet flow through the third stop valve on the bypass pipeline, opens the eleventh control valve simultaneously, so that the gas in the buffer tank is directly discharged into the atmosphere, the pressure in the buffer tank is also the same as the atmospheric pressure, the buffer tank is kept in the normal pressure state, after a period of gas outlet, because the pressure in the buffer tank is lower, the gas replacement speed is faster, the gas purity can be rapidly promoted, after the required purity is reached, closes the eleventh control valve, the pressure is boosted through the last buffer tank, and after the pressure in the buffer tank reaches the normal working state, the ninth control valve which works normally is switched, the air outlet flow of the buffer tank is adjusted by the fourth stop valve, and the pressure swing adsorption equipment enters a normal working state.
(2) The utility model discloses a set up driving motor, pivot, sealed piece and doctor-bar, open driving motor, make through the pivot and filter the sleeve and rotate, and then clear up filtering the adsorbed impurity on the sleeve surface through the doctor-bar, prevent to filter that the sleeve adsorbs on the surface has more impurity, lead to gaseous unable quick through filtering the sleeve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the filter of the present invention;
fig. 3 is a front view of the filter of the present invention;
fig. 4 is a cross-sectional view taken along line a-a of fig. 3 according to the present invention.
In the figure: 1. a third control valve; 2. a fourth control valve; 3. a fifth control valve; 4. a first control valve; 5. a first adsorption tower; 6. a second control valve; 7. a second adsorption column; 8. a muffler; 9. a sixth control valve; 10. a seventh control valve; 11. a first shut-off valve; 12. a second stop valve; 13. an eighth control valve; 14. a ninth control valve; 15. a tenth control valve; 16. a third stop valve; 17. a buffer tank; 18. a filter; 181. a housing; 182. a connecting cover; 183. a connecting plate; 184. a filter cartridge; 185. scraping a blade; 186. an air tube; 187. a support pillar; 188. a sealing block; 19. a connecting pipe; 20. a flow meter; 21. a fourth stop valve; 22. an eleventh control valve; 23. a gas analyzer; 24. a drive motor; 25. a rotating shaft.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, a quick purity-improving device for pressure swing adsorption nitrogen making startup comprises a third control valve 1, a fourth control valve 2 and a fifth control valve 3 are fixedly communicated with the right side of the third control valve 1 through a three-way pipeline, a first control valve 4 and a first adsorption tower 5 are fixedly communicated with the left side of the fourth control valve 2 through a three-way pipeline, a second control valve 6 and a second adsorption tower 7 are fixedly communicated with the right side of the fifth control valve 3 through a three-way pipeline, a silencer 8 is fixedly communicated with the right side of the first control valve 4 and the left side of the second control valve 6 through a three-way pipeline, and gases discharged into the air are silenced through the silencer 8.
The top of the first adsorption tower 5 is fixedly communicated with a sixth control valve 9, a seventh control valve 10 and a first stop valve 11 through a four-way pipeline, the right side of the first stop valve 11 and the top of the second adsorption tower 7 are fixedly communicated with a second stop valve 12 and an eighth control valve 13 through a four-way pipeline, the right side of the sixth control valve 9 and the left side of the second stop valve 12 are fixedly communicated through a two-way pipeline, the right side of the seventh control valve 10 and the left side of the eighth control valve 13 are fixedly communicated with a ninth control valve 14 and a tenth control valve 15 through a four-way pipeline, the right side of the tenth control valve 15 is fixedly communicated with a third stop valve 16 through a two-way pipeline, the right side of the ninth control valve 14 and the right side of the third stop valve 16 are fixedly communicated with a buffer tank 17 through a three-way pipeline, and the buffer tank 17 plays a role in buffering gas.
The end of giving vent to anger of buffer tank 17 is through the fixed intercommunication of bi-pass pipeline having filter 18, and the end of giving vent to anger of filter 18 is through the fixed intercommunication of bi-pass pipeline having connecting pipe 19, and the fixed intercommunication in top of connecting pipe 19 has flowmeter 20, and flowmeter 20's end of giving vent to anger is through the fixed intercommunication of three-way pipeline having fourth stop valve 21 and eleventh control flap 22, and the fixed surface of connecting pipe 19 is connected with gas analyzer 23, and gas analyzer 23's measuring end runs through connecting pipe 19 and extends to in the connecting pipe 19.
The filter 18 comprises a shell 181, a connecting cover 182 is connected to the surface of the shell 181 in a threaded manner, a connecting plate 183 is connected to the top of the inner wall of the connecting cover 182 in a sliding manner, the surface of the connecting plate 183 is connected to the inner wall of the shell 181 in a sliding manner, a filtering sleeve 184 is fixedly connected to the bottom of the connecting plate 183, the bottom of the filtering sleeve 184 is connected to the bottom of the inner wall of the shell 181 in a sliding manner, a supporting column 187 is fixedly connected to the bottom of the shell 181, air pipes 186 are fixedly communicated with the left side and the right side of the shell 181, the left side of the air pipe 186 on the left side is fixedly connected to the air outlet end of the buffer tank 17 through a two-way pipeline, the right side of the air pipe 186 on the right side is fixedly connected to the left side and the right side of the connecting pipe 19, a sealing block 188 and a scraping blade 185 are, air in the left space and the right space only circulates through the filtering sleeve 184, the upper surface of the connecting cover 182 is fixedly connected with the driving motor 24 through the supporting frame, the output end of the driving motor 24 is fixedly connected with the rotating shaft 25 through the coupler, the surface of the rotating shaft 25 is in sliding connection with the inner wall of the connecting cover 182, the bottom of the rotating shaft 25 is fixedly connected with the upper surface of the connecting plate 183, the height of the sealing block 188, the height of the scraping blade 185 and the height of the filtering sleeve 184 are equal, the filtering sleeve 184 rotates towards one side close to the scraping blade 185, impurities on the filtering sleeve 184 are cleaned through the scraping blade 185, the impurities are accumulated on one side close to the scraping blade 185, when the impurities in the filter 18 are cleaned, the connecting cover 182 is rotated to separate the connecting cover 182 from the shell 181, the filtering sleeve 184 is taken out, and then the impurities in the filtering.
The utility model discloses in, when the user used the device, the start-up procedure comprises time T1, T2, T3:
time T1: when the pressure swing adsorption air separation plant starts, raw material air enters the first adsorption tower 5 filled with the adsorbent from the third control valve 1 and the fourth control valve 2, gas components easy to adsorb are adsorbed by the adsorbent, gas components difficult to adsorb, namely product gas, flows out from the outlet of the first adsorption tower 5, enters the second adsorption tower 7 through the sixth control valve 9, the second stop valve 12 and the first stop valve 11, so that the product gas purges the second adsorption tower 7, and meanwhile, the seventh control valve 10 and the eighth control valve 13 are closed. After the purge gas enters the second adsorption tower 7, the easily adsorbed components in the adsorbent are purged and released, and the released gas is discharged into the atmosphere through a second control valve 6 and a silencer 8. After the adsorption of the first adsorption tower 5 is completed, the second adsorption tower 7 is switched to adsorb, and the first adsorption tower 5 regeneratively purges. And finishing the cyclic adsorption for 2-3 times by the first adsorption tower 5 and the second adsorption tower 7.
Time T2: when T1 is completed, the raw air enters the first adsorption tower 5 filled with the adsorbent through the third control valve 1 and the fourth control valve 2, the gas component easy to adsorb is adsorbed by the adsorbent, the gas component difficult to adsorb flows out from the first adsorption tower 5, passes through the seventh control valve 10, the tenth control valve 15, the third stop valve 16 and enters the buffer tank 17, and the eleventh control valve 22 is opened, and the product gas passes through the filter 18 and is directly discharged to the atmosphere. At this time, the pressure in the buffer tank 17 is normal pressure, and the gas analyzer 23 detects the purity of the product gas. The sixth control valve 9 is closed, part of the product gas enters the second adsorption tower 7 for purging only through the first stop valve 11, and the released gas is discharged into the atmosphere through the second control valve 6 and the silencer 8. After the adsorption of the first adsorption tower 5 is completed, the second adsorption tower 7 is switched to adsorb, and the first adsorption tower 5 regeneratively purges. Because the pressure in the buffer tank 17 is normal pressure, the replacement speed of the product gas to the original low-purity gas in the buffer tank 17 is high, the purity of the gas at the outlet of the buffer tank 17 rises rapidly, and the T2 is finished when the gas analyzer 23 detects that the purity of the product gas is qualified.
Time T3: when the purity of the product gas is qualified, the eleventh control valve 22 is closed, the qualified product gas gradually boosts the pressure of the buffer tank 17, when the pressure in the buffer tank 17 reaches the normal working condition (close to the pressure of the adsorption tower), the tenth control valve 15 is closed, the ninth control valve 14 is opened, and the flow of the product gas outlet is adjusted by the fourth stop valve 21. At the end of T3, the pressure swing adsorption air separation equipment is in normal working state, and the product gas reaches the qualified use requirement.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (6)
1. The device for quickly improving the purity of the nitrogen produced by pressure swing adsorption at startup comprises a third control valve (1), and is characterized in that the right side of the third control valve (1) is fixedly communicated with a fourth control valve (2) and a fifth control valve (3) through a three-way pipeline, the left side of the fourth control valve (2) is fixedly communicated with a first control valve (4) and a first adsorption tower (5) through a three-way pipeline, the right side of the fifth control valve (3) is fixedly communicated with a second control valve (6) and a second adsorption tower (7) through a three-way pipeline, and the right side of the first control valve (4) and the left side of the second control valve (6) are both fixedly communicated with a silencer (8) through a three-way pipeline;
the top of the first adsorption tower (5) is fixedly communicated with a sixth control valve (9), a seventh control valve (10) and a first stop valve (11) through a four-way pipeline, the right side of the first stop valve (11) and the top of the second adsorption tower (7) are fixedly communicated with a second stop valve (12) and an eighth control valve (13) through a four-way pipeline, the right side of the sixth control valve (9) is fixedly communicated with the left side of the second stop valve (12) through a two-way pipeline, the right side of the seventh control valve (10) and the left side of the eighth control valve (13) are both fixedly communicated with a ninth control valve (14) and a tenth control valve (15) through four-way pipelines, the right side of the tenth control valve (15) is fixedly communicated with a third stop valve (16) through a two-way pipeline, and the right side of the ninth control valve (14) and the right side of the third stop valve (16) are fixedly communicated with a buffer tank (17) through a three-way pipeline.
2. The device for rapidly increasing the purity of nitrogen by starting up Pressure Swing Adsorption (PSA) production according to claim 1, wherein the air outlet end of the buffer tank (17) is fixedly communicated with a filter (18) through a two-way pipeline, the air outlet end of the filter (18) is fixedly communicated with a connecting pipe (19) through a two-way pipeline, the top of the connecting pipe (19) is fixedly communicated with a flow meter (20), and the air outlet end of the flow meter (20) is fixedly communicated with a fourth stop valve (21) and an eleventh control valve (22) through a three-way pipeline.
3. The device for rapidly increasing the purity at startup of pressure swing adsorption nitrogen generation according to claim 2, wherein a gas analyzer (23) is fixedly connected to the surface of the connecting pipe (19), and a measuring end of the gas analyzer (23) penetrates through the connecting pipe (19) and extends into the connecting pipe (19).
4. The device for quickly improving the purity of nitrogen by starting up Pressure Swing Adsorption (PSA) to prepare nitrogen according to claim 2, wherein the filter (18) comprises a housing (181), the surface of the housing (181) is in threaded connection with a connecting cover (182), the top of the inner wall of the connecting cover (182) is in sliding connection with a connecting plate (183), the surface of the connecting plate (183) is in sliding connection with the inner wall of the housing (181), the bottom of the connecting plate (183) is fixedly connected with a filtering sleeve (184), the bottom of the filtering sleeve (184) is in sliding connection with the bottom of the inner wall of the housing (181), the bottom of the housing (181) is fixedly connected with a supporting column (187), the left side and the right side of the housing (181) are both fixedly communicated with air pipes (186), the left side of the air pipe (186) is fixedly connected with the air outlet end of the buffer tank (17) through a two-way pipeline, the right side of the air pipe (186), the front side and the rear side of the filtering sleeve (184) are both connected with a sealing block (188) and a scraping blade (185) in a sliding mode, and the back face of the sealing block (188) and the front face of the scraping blade (185) are both fixedly connected with the inner wall of the shell (181).
5. The device for rapidly increasing the purity of nitrogen through startup in pressure swing adsorption nitrogen production according to claim 4, wherein the upper surface of the connecting cover (182) is fixedly connected with a driving motor (24) through a supporting frame, the output end of the driving motor (24) is fixedly connected with a rotating shaft (25) through a coupling, the surface of the rotating shaft (25) is slidably connected with the inner wall of the connecting cover (182), and the bottom of the rotating shaft (25) is fixedly connected with the upper surface of the connecting plate (183).
6. The device for starting-up and rapidly increasing the purity of nitrogen by pressure swing adsorption according to claim 5, wherein the height of the sealing block (188), the height of the scraping blade (185) and the height of the filtering sleeve (184) are all equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921074335.2U CN210635729U (en) | 2019-07-10 | 2019-07-10 | Quick purity device that promotes of pressure swing adsorption nitrogen making start |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921074335.2U CN210635729U (en) | 2019-07-10 | 2019-07-10 | Quick purity device that promotes of pressure swing adsorption nitrogen making start |
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| CN210635729U true CN210635729U (en) | 2020-05-29 |
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| CN201921074335.2U Active CN210635729U (en) | 2019-07-10 | 2019-07-10 | Quick purity device that promotes of pressure swing adsorption nitrogen making start |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573634A (en) * | 2020-06-19 | 2020-08-25 | 江苏嘉宇特种装备股份有限公司 | Intelligent self-adaptive pressure swing adsorption nitrogen making machine |
| CN114137155A (en) * | 2021-11-03 | 2022-03-04 | 力合科技（湖南）股份有限公司 | Flow path design of multi-gas dynamic calibrator |
-
2019
- 2019-07-10 CN CN201921074335.2U patent/CN210635729U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573634A (en) * | 2020-06-19 | 2020-08-25 | 江苏嘉宇特种装备股份有限公司 | Intelligent self-adaptive pressure swing adsorption nitrogen making machine |
| CN111573634B (en) * | 2020-06-19 | 2024-02-13 | 江苏嘉宇特种装备股份有限公司 | Intelligent self-adaptive pressure swing adsorption nitrogen making machine |
| CN114137155A (en) * | 2021-11-03 | 2022-03-04 | 力合科技（湖南）股份有限公司 | Flow path design of multi-gas dynamic calibrator |
| CN114137155B (en) * | 2021-11-03 | 2024-04-12 | 力合科技（湖南）股份有限公司 | Flow path design of multi-gas dynamic calibrator |
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Address after: 211300 No. 67 Gutan Avenue, Gaochun Economic Development Zone, Nanjing City, Jiangsu Province Patentee after: Jiangsu air separation technology equipment manufacturing Co., Ltd Address before: 211300 No. 67 Gutan Avenue, Gaochun Economic Development Zone, Nanjing City, Jiangsu Province Patentee before: Nanjing Saihu Industrial Equipment Co.,Ltd. |