CN201632181U - PSA gas flow multi-stage diffusing device - Google Patents
PSA gas flow multi-stage diffusing device Download PDFInfo
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- CN201632181U CN201632181U CN2010201465253U CN201020146525U CN201632181U CN 201632181 U CN201632181 U CN 201632181U CN 2010201465253 U CN2010201465253 U CN 2010201465253U CN 201020146525 U CN201020146525 U CN 201020146525U CN 201632181 U CN201632181 U CN 201632181U
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- air inlet
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- end socket
- anger
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Abstract
The utility model discloses a PSA gas flow multi-stage diffusing device comprising a barrel body, a gas inlet sealing head and a gas outlet sealing head which are arranged at two ends of the barrel body and respectively welded with ports at the two ends of the barrel boy; the barrel body is internally provided with an absorbing layer; the gas inlet sealing head is provided with a gas inlet pipe which is internally provided with a shutter cyclone sheet; a port of the gas inlet pipe is provided with a gas flow diffusing device which comprises a gas buffering cavity and a gas diffusing pipe; two ends of the absorbing layer are respectively provided with a gas inlet grid and a gas outlet grid which are respectively and closely contacted with the absorbing layer; the gas outlet head is provided with a gas outlet pipe and a charging port; the barrel body is also provided with a discharging port; and by use of a plurality of diffusing devices, the PSA gas flow multi-stage diffusing device greatly reduces the impact energy of gas flow, effectively controls the flowing speed and direction of the gas flow, avoids the impact of the gas flow to an absorbing material in an absorbing bed, prolongs the service life of the absorbing material, eliminating a dead angle of the absorbing layer, and improves the utilization ratio of the absorbing material and simultaneously facilitates replacement of the absorbing material.
Description
Technical field
The utility model relates to a kind of air separation plant device, refers more particularly to a kind of PSA air flow multi-stage disperser.
Background technology
In the modern industry, high-quality in order to obtain, oxygen and nitrogen cheaply, transformation absorption has obtained using widely, pressure swing adsorption system adopts the above adsorbent bed of two towers or two towers to take turns switch operating, sorbing material adopts molecular sieve, in the general adsorption system, air inlet pipe directly contacts with molecular sieve with escape pipe, because adsorbent bed absorption and regeneration hocket, the pressure of adsorbent bed is constantly changed, directly blow to molecular sieve as air-flow, cause the efflorescence of sieve particle easily, reduced the service life of molecular sieve, simultaneously, air-flow is concentrated and is blowed to a place, cause the local overload of molecular sieve easily, make the utilization rate of molecular sieve lower, for this reason, people have done some improvement, as China Patent No. is CN92236007.3, name is called the utility model patent of split type adsorption tanks, adsorption tanks are by upper cover, tank body and low head are formed, on, low head adopts ring flange to be connected with tank body, last, a double-deck flow distribution plate is respectively placed at lower seal neck place, also lay one with layer flow distribution plate at low head and tank body junction, realize three grades of shuntings, the charge air flow of this utility model does not directly blow to filtering layer, is provided with three grades of shunting devices, filter effect is better, but because air inlet does not have disperser, air-flow still can not be evenly distributed, the filtrate utilization rate is lower, simultaneously, the change of structure causes filtrate to change trouble, and operation easier is bigger, brings certain restriction to use.
The utility model content
The utility model mainly solves because of air-flow directly blows to molecular sieve and makes the technical problem that transship the easy efflorescence of molecular sieve, part, the molecular sieve utilization rate is lower and service life is short, simultaneously, solves the molecular sieve replacing again and bothers the deficiency that operation easier is bigger; Provide a kind of and can prevent the damaged efflorescence of molecular sieve, the molecular sieve utilization rate is higher and change the multiple disperser of PSA air-flow easily.
In order to solve the technical problem of above-mentioned existence, the utility model mainly is to adopt following technical proposals:
The utility model comprises cylindrical shell, be located at the cylindrical shell two ends and respectively with the air inlet end socket of cylindrical shell two ends port welding and the end socket of giving vent to anger, be provided with adsorption layer in the cylindrical shell, described air inlet end socket is provided with air inlet pipe, be provided with the blinds whirlwind sheet in the described air inlet pipe, described air inlet pipe port is provided with airflow diffuser, described airflow diffuser comprises gas buffer chamber and gas diffusion tube, the two ends of described adsorption layer are respectively equipped with the air inlet grid and the grid of giving vent to anger, described air inlet grid all closely contacts with adsorption layer with the grid of giving vent to anger, the described end socket of giving vent to anger is provided with escape pipe and charge door, also be provided with discharge port on the described cylindrical shell, the use of multiple disperser reduces the impact energy of air-flow greatly, has effectively controlled the flow velocity and the direction of air-flow, avoided the impact of air-flow to absorption material in the adsorbent bed, prolonged the service life of absorption material, the utilization rate that absorption is expected has been improved at the dead angle of having eliminated adsorption layer, simultaneously, made things convenient for the replacing of absorption material.
As preferably, the described air inlet end socket and the end socket of giving vent to anger are ellipse head, and described air inlet pipe is located at the central authorities of air inlet end socket, are located at the outer air inlet pipe port of cylindrical shell and are welded with flange, and described gas buffer chamber is connected with the air inlet pipe flange.
As preferably, described blinds whirlwind sheet is located at the port of air inlet pipe near the air inlet end socket, described blinds whirlwind sheet is coaxial and weld with the air inlet pipe inwall with air inlet pipe, the direction that air-flow is set from cyclone plate flows out to diffusion all around, steadily evenly enter adsorbent bed, avoided the direct impact of air-flow, improved the service life of absorption material the absorption material.
As preferably, the bottom lock in described gas buffer chamber, the sidewall in gas buffer chamber is provided with through hole, and it is vertical with the gas buffer cavity axis and fixedly connected that described gas diffusion tube is passed through hole.
As preferably, the gas diffusion tube port that is located at outside the gas buffer chamber is provided with flange, the other end port closed of gas diffusion tube, be provided with a plurality of equally distributed apertures on the gas diffusion tube tube wall in the gas buffer chamber, inlet air flow is by the aperture reduction of speed, through the buffering in gas buffer chamber, weakened the energy of air-flow, reduced the impact failure of air-flow.
As preferably, the material of described adsorption layer is a molecular sieve, and adsorption capacity is higher, can improve the adsorbance of unit volume and the concentration of finished product gas, reduces the volume of absorbing cylinder.
As preferably, the described air inlet grid and the grid of giving vent to anger comprise orifice plate, wire netting and coconut palm pad respectively, described orifice plate is provided with a plurality of equally distributed circular holes, described wire netting is fitted in the surface of orifice plate, wire netting is towards a side of described adsorption layer, the mesh of wire netting is less than the particle diameter of molecular sieve, the coconut palm pad is located on the surface of wire netting, the grid that multilayer material is formed, especially the coconut palm pad that has good shrinkage uses, and is preventing to have promoted the shock proof ability of adsorption layer again when molecular sieve from rushing down leakage.
As preferably, described air inlet grid is plane grid, the inwall welding of the outer of air inlet grid and air inlet end socket.
As preferably, be provided with the sphere mesh screen near air inlet pipe one side on the described air inlet end socket, the center of circle of sphere mesh screen is towards air inlet pipe, be provided with spherical drier between sphere mesh screen and the air inlet grid, the sphere mesh screen comprises orifice plate and wire netting, the inwall welding of the outer of described orifice plate and air inlet end socket, orifice plate is provided with a plurality of equally distributed apertures, described wire netting is fitted in the surface of orifice plate, wire netting is towards a side of spherical drier, the mesh of wire netting is less than the particle diameter of spherical drier, the setting of spherical drier further reduces the compressed air water content that enters adsorption tower, has alleviated the absorption burden of molecular sieve, prolong the service life of molecular sieve, improved the purity of finished product gas.
As preferably, the described grid of giving vent to anger is circular umbrella grid, and the top of circular umbrella grid is towards the escape pipe side, and the central authorities of the grid of giving vent to anger have through hole, the edge of described through hole and the escape pipe port outer welding that is located in the cylindrical shell, the outer of the grid of giving vent to anger and the end socket inwall welding of giving vent to anger.
The beneficial effects of the utility model are: gas diffusion tube by entrance point and blinds whirlwind sheet are to the dual diffusion reduction of speed of air-flow, the throughput that reduced the impact energy of entrance point air-flow and uniform distribution, eliminated the dead angle of adsorption layer, prevent the damaged efflorescence of adsorbate, improved the utilization rate of adsorbate, simultaneously, made things convenient for the replacing of adsorbate, reduced operation easier, improved labor productivity, be provided with spherical drier, more alleviated the absorption load of molecular sieve at air inlet, prolong the service life of molecular sieve, improved the purity of finished product gas.
Description of drawings
Fig. 1 is a kind of cross-sectional view of the present utility model.
1. cylindrical shells among the figure, 2. air inlet end socket, the end socket of 3. giving vent to anger, 4. adsorption layer, 5. air inlet pipe, 6. escape pipe, 7. charge door, 8. discharge port, 9. blinds whirlwind sheet, 10. gas buffer chamber, 11. gas diffusion tube, 12. air inlet grids, 13. grids of giving vent to anger, 14. sphere mesh screens, 15. spherical drier.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the PSA air flow multi-stage disperser of present embodiment, as shown in Figure 1, comprise cylindrical shell 1, be arranged on the cylindrical shell two ends and respectively with the air inlet end socket 2 of cylindrical shell two ends port welding and the end socket 3 of giving vent to anger, the air inlet end socket and the end socket of giving vent to anger are ellipse head, air inlet end socket central authorities are welded with air inlet pipe 5, give vent to anger and be welded with escape pipe 6 and charge door 7 on the end socket, also design on the cylindrical shell discharge port 8 is arranged, on the air inlet pipe port airflow diffuser is housed, comprise gas buffer chamber 10 and gas diffusion tube 11, the gas buffer chamber is connected with the air inlet pipe flange, the bottom lock in gas buffer chamber, have through hole on the sidewall in gas buffer chamber, it is vertical and fixedly connected that gas diffusion tube is passed through hole and gas buffer cavity axis, gas diffusion tube port outside cushion chamber is welded with flange, other end port closed, have a plurality of equally distributed apertures on the gas diffusion tube tube wall in the gas buffer chamber, blinds whirlwind sheet 9 is equipped with in port near the air inlet end socket in the air inlet pipe, and the blinds whirlwind sheet is coaxial and weld with the air inlet pipe inwall with air inlet pipe.Molecular sieve adsorption layer 4 is housed in the cylindrical shell, the two ends of molecular sieve adsorption layer are respectively arranged with the air inlet grid 12 and the grid 13 of giving vent to anger, the air inlet grid all closely contacts with the molecular sieve adsorption layer with the grid of giving vent to anger, the air inlet grid and the grid of giving vent to anger comprise orifice plate respectively, wire netting and coconut palm pad, have a plurality of equally distributed circular holes on the orifice plate, wire netting is fitted in the surface of orifice plate, wire netting is towards a side of molecular sieve adsorption layer, the mesh of wire netting is less than the particle diameter of molecular sieve, the coconut palm pad is fitted on the surface of wire netting, the air inlet grid is plane grid, the inwall welding of the outer of air inlet grid and air inlet end socket, the grid of giving vent to anger is circular umbrella grid, the top of circular umbrella grid is towards escape pipe one side, the give vent to anger central authorities of grid have through hole, the edge of through hole and the escape pipe port outer welding that is arranged in the cylindrical shell, the inwall welding of the outer of the grid of giving vent to anger and the end socket of giving vent to anger.Also be provided with sphere mesh screen 14 near air inlet pipe one side on the air inlet end socket, the center of circle of sphere mesh screen is towards air inlet pipe, spherical drier 15 is housed between sphere mesh screen and the air inlet grid, the sphere mesh screen comprises orifice plate and wire netting, the inwall welding of the outer of orifice plate and air inlet end socket has a plurality of equally distributed circular holes on the orifice plate, wire netting is fitted in the surface of orifice plate, wire netting is towards a side of spherical drier, and the mesh of wire netting is less than the particle diameter of spherical drier.When work, the compressed air that flow velocity is about 12～14m/s cushions in the inflow gas cushion chamber after by aperture reduction of speed to the 7～8m/s on the gas diffusion tube, make induction air flow ratio further drop to about 2.5～3.5m/s, compressed air after the buffering passes through the interior blinds whirlwind sheet of air inlet pipe to diffusion all around, and tangentially evenly enter bottom the adsorption tower, and remove behind the remaining moisture content further reduction of speed to 0.25～0.35m/s uniform and stable by sphere mesh screen and spherical drier and enter sieve adsorpting bed and adsorb, eliminated the dead angle of adsorbent bed, and utilize the air inlet grid and the secondary buffer of the give vent to anger orifice plate of grid and coconut palm pad after from the escape pipe outflow, finish whole adsorption process.
Claims (10)
1. PSA air flow multi-stage disperser, comprise cylindrical shell (1), be located at the cylindrical shell two ends and respectively with the air inlet end socket (2) and the end socket of giving vent to anger (3) of cylindrical shell two ends port welding, be provided with adsorption layer (4) in the cylindrical shell, it is characterized in that: described air inlet end socket is provided with air inlet pipe (5), be provided with blinds whirlwind sheet (9) in the described air inlet pipe, the air inlet pipe port is provided with airflow diffuser, described airflow diffuser comprises gas buffer chamber (10) and gas diffusion tube (11), the two ends of described adsorption layer are respectively equipped with air inlet grid (12) and the grid of giving vent to anger (13), described air inlet grid all closely contacts with adsorption layer with the grid of giving vent to anger, the described end socket of giving vent to anger is provided with escape pipe (6) and charge door (7), also is provided with discharge port (8) on the described cylindrical shell.
2. PSA air flow multi-stage disperser according to claim 1, it is characterized in that: described air inlet end socket (2) and the end socket of giving vent to anger (3) are ellipse head, described air inlet pipe (5) is located at the central authorities of air inlet end socket, be located at the outer air inlet pipe port of cylindrical shell (1) and be welded with flange, described gas buffer chamber (10) is connected with the air inlet pipe flange.
3. PSA air flow multi-stage disperser according to claim 1, it is characterized in that: described blinds whirlwind sheet (9) is located at air inlet pipe (5) near the port of air inlet end socket (2), and described blinds whirlwind sheet is coaxial and weld with the air inlet pipe inwall with air inlet pipe.
4. PSA air flow multi-stage disperser according to claim 1, it is characterized in that: the bottom lock in described gas buffer chamber (10), the sidewall in gas buffer chamber is provided with through hole, and it is vertical and fixedly connected that described gas diffusion tube (11) is passed through hole and gas buffer cavity axis.
5. PSA air flow multi-stage disperser according to claim 4, it is characterized in that: be located at outer gas diffusion tube (11) port in gas buffer chamber (10) and be provided with flange, the other end port closed of gas diffusion tube is provided with a plurality of equally distributed apertures on the gas diffusion tube tube wall in the gas buffer chamber.
6. PSA air flow multi-stage disperser according to claim 1 is characterized in that: the material of described adsorption layer (4) is a molecular sieve.
7. PSA air flow multi-stage disperser according to claim 1, it is characterized in that: described air inlet grid (12) and the grid of giving vent to anger (13) comprise orifice plate, wire netting and coconut palm pad respectively, described orifice plate is provided with a plurality of equally distributed circular holes, described wire netting is fitted in the surface of orifice plate, wire netting is towards a side of adsorption layer (4), the mesh of wire netting is less than the particle diameter of molecular sieve, and the coconut palm pad is located on the surface of wire netting.
8. according to claim 1 or 7 described PSA air flow multi-stage dispersers, it is characterized in that: described air inlet grid (12) is plane grid, the inwall welding of the outer of air inlet grid and air inlet end socket (2).
9. PSA air flow multi-stage disperser according to claim 1 and 2, it is characterized in that: described air inlet end socket (2) is gone up near air inlet pipe (5) one sides and is provided with sphere mesh screen (14), the center of circle of sphere mesh screen is towards air inlet pipe, be provided with spherical drier (15) between sphere mesh screen and the air inlet grid (12), described sphere mesh screen comprises orifice plate and wire netting, the inwall welding of the outer of described orifice plate and air inlet end socket, orifice plate is provided with a plurality of equally distributed circular holes, described wire netting is fitted in the surface of orifice plate, wire netting is towards a side of described spherical drier, and the mesh of wire netting is less than the particle diameter of spherical drier.
10. according to claim 1 or 7 described PSA air flow multi-stage dispersers, it is characterized in that: the described grid of giving vent to anger (13) is circular umbrella grid, the top of circular umbrella grid is towards escape pipe (6) one sides, the give vent to anger central authorities of grid have through hole, the edge of described through hole and the escape pipe port outer welding that is located in the cylindrical shell (1), the outer of the grid of giving vent to anger and end socket (3) the inwall weldering of giving vent to anger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201465253U CN201632181U (en) | 2010-04-01 | 2010-04-01 | PSA gas flow multi-stage diffusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201465253U CN201632181U (en) | 2010-04-01 | 2010-04-01 | PSA gas flow multi-stage diffusing device |
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| Publication Number | Publication Date |
|---|---|
| CN201632181U true CN201632181U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201465253U Expired - Fee Related CN201632181U (en) | 2010-04-01 | 2010-04-01 | PSA gas flow multi-stage diffusing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350092A (en) * | 2011-07-27 | 2012-02-15 | 许盛英 | Dehydrating apparatus for alcoholic group bactericidal and fresh keeping liquid |
| CN102760503A (en) * | 2011-04-28 | 2012-10-31 | 清华大学 | Gas distribution device and particle coating method |
| CN102961952A (en) * | 2012-12-08 | 2013-03-13 | 张家港市金腾化工机械制造有限公司 | Chlorine gas dehydrating device for chemical industry |
| CN103908869A (en) * | 2014-04-24 | 2014-07-09 | 赣州川汇气体设备制造有限公司 | Vacuum pressure swing adsorption (VPSA) oxygen enrichment process |
| CN105664662A (en) * | 2016-03-31 | 2016-06-15 | 威格气体纯化科技（苏州）股份有限公司 | Purification column capable of replacing adsorption material online and glove box |
| 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 |
-
2010
- 2010-04-01 CN CN2010201465253U patent/CN201632181U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760503A (en) * | 2011-04-28 | 2012-10-31 | 清华大学 | Gas distribution device and particle coating method |
| CN102760503B (en) * | 2011-04-28 | 2015-02-18 | 清华大学 | Gas distribution device and particle coating method |
| CN102350092A (en) * | 2011-07-27 | 2012-02-15 | 许盛英 | Dehydrating apparatus for alcoholic group bactericidal and fresh keeping liquid |
| CN102350092B (en) * | 2011-07-27 | 2013-08-14 | 许盛英 | Dehydrating apparatus for alcoholic group bactericidal and fresh keeping liquid |
| CN102961952A (en) * | 2012-12-08 | 2013-03-13 | 张家港市金腾化工机械制造有限公司 | Chlorine gas dehydrating device for chemical industry |
| CN103908869A (en) * | 2014-04-24 | 2014-07-09 | 赣州川汇气体设备制造有限公司 | Vacuum pressure swing adsorption (VPSA) oxygen enrichment process |
| CN105664662A (en) * | 2016-03-31 | 2016-06-15 | 威格气体纯化科技（苏州）股份有限公司 | Purification column capable of replacing adsorption material online and glove box |
| 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 |
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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: 20101117 Termination date: 20180401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |