CN105289201A - Adsorbent compressing device used in pressure-swing absorber and adsorbent compressing method thereof - Google Patents
Adsorbent compressing device used in pressure-swing absorber and adsorbent compressing method thereof Download PDFInfo
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- CN105289201A CN105289201A CN201510796570.0A CN201510796570A CN105289201A CN 105289201 A CN105289201 A CN 105289201A CN 201510796570 A CN201510796570 A CN 201510796570A CN 105289201 A CN105289201 A CN 105289201A
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Abstract
The invention relates to an adsorbent compressing device used in a pressure-swing absorber and an adsorbent compressing method thereof, and the invention relates to a molecular sieve compressing device in the pressure-swing absorber and a method thereof. The adsorbent compressing device solves the problem that the current adsorbent compressing devices cannot adjust height of an upper orifice plate so that the upper orifice plate is easily turned on its side, and a structure and an operation process are simple. A lower transverse plane of the upper orifice plate is an arc surface, a first through hole and several second through holes are arranged on the upper orifice plate along axial direction, the first through hole is positioned at a circle center of the upper orifice plate, an upper end of an elastic fixed rod is fixed at a lower end of a cover plate, the lower end of the elastic fixed rod is fixed at the upper transverse plane of the upper orifice plate, the elastic fixed rods are uniformly arranged along the circumference direction of the upper orifice plate, the upper end of a guide bar is fixedly connected to the lower end of an outlet duct, the upper orifice plate is sleeved on the guide bar, and a sealing head is positioned at the lower end of the upper orifice plate and enables threaded connection with the guide bar. The invention provides the adsorbent compressing device used in the pressure-swing absorber and the adsorbent compressing method for compressing the molecular sieve.
Description
Technical field
The present invention relates to a kind of hold down gag for adsorbent in pressure-swing absorber and adsorbent compressing method.
Background technology
Stalk and biological manure fermentation is utilized to prepare biogas, its combustion gas calorific value is lower, comparatively waste, current method normally adopts pressure swing adsorption technique separating-purifying to reclaim methane, this technique utilizes adsorbent to the selective absorbing of carbon dioxide to isolate methane, methane recovery is higher, the method Problems existing of existing compression adsorbent adopts absorption, during desorption technique step, when gas pressure is excessive, when flow velocity is too fast or up-hole plate weight is inadequate, the promotion of adsorption tower up-hole plate sorbent suspension, up-hole plate misalignment can be caused, even turn on one's side, adsorbent is escaped, because needs regularly change adsorbent, so up-hole plate can not be completely fixed, can not be welded with tower body, publication number be CN101683582 patent discloses a kind of hold down gag by hydraulic cylinder and cylinder double action, the Height Adjustment of up-hole plate can be realized and compress adsorbent, but there is complex structure in this device, the defect that job step is loaded down with trivial details.
Summary of the invention
The object of the invention is cannot adjust up-hole plate height, up-hole plate easily to turn on one's side and adsorbent easily makes its skewness, problem that compaction process is loaded down with trivial details in adsorption tower when loading to solve existing absorbent compressing device, and then provide a kind of hold down gag for adsorbent in pressure-swing absorber and adsorbent compressing method.
Technical scheme of the present invention is: for the hold down gag of adsorbent in pressure-swing absorber, comprise cover plate, ring flange and tower body, tower body is cylindrical shape, the lower end of ring flange and the upper end of tower body affixed, cover plate central position is coated with escape pipe, escape pipe and cover plate affixed, the bottom of escape pipe is processed with some ventholes along its circumferencial direction, cover plate is positioned at the upper end of ring flange and affixed by bolt with ring flange, also up-hole plate is comprised for the fixing of pressure-swing absorber Middle molecule sieve and hold down gag, guide post, end socket and some flexible fastening bars, up-hole plate is circular slab, the upper surface of up-hole plate is plane, the lower surface of up-hole plate is arc surface, up-hole plate axially offers the first through hole and some second through holes along it, first through hole is positioned at up-hole plate circle centre position, the upper end of flexible fastening bar is fixed in the lower surface of cover plate, the lower end of flexible fastening bar is fixed in the upper surface of up-hole plate, flexible fastening bar is along the uniform setting of up-hole plate circumferencial direction, the upper end of guide post and the lower end of escape pipe affixed, up-hole plate suit on the guide bar, end socket is positioned at the lower end of up-hole plate and is connected with guide rod thread.
Present invention also offers a kind of adsorbent compressing method using above-mentioned hold down gag, concrete steps are:
Step one: the cover plate opening tower body upper end, installs orifice plate, loads supporter and cushion successively;
Step 2: prepare a funnel, be placed in by funnel on adsorption tower upper flanges dish, filled with adsorbent, pours in funnel by adsorbent slowly, at the uniform velocity and continuously, meanwhile, the outer wall beaing adsorption tower of continuous uniform;
Step 3: after absorbent filling completes, 50s ~ 70s stops beaing;
Step 4: absorbent compressing device is loaded in adsorption tower tower body, make lower surface and the adsorbent close contact of up-hole plate, then locked flexible fastening bar, with bolt by cover plate and ring flange affixed, adsorbent realizes compressing by flexible fastening bar, and the now filling of adsorbent in tower body and compacting process terminate.
The present invention compared with prior art has following effect:
The position of up-hole plate can by the height of adjustment flexible fastening bar to adapt to different absorbent filling height, and practicality is better, and adsorbent keeps impaction state to adopt flexible fastening bar to ensure, by the lower surface of up-hole plate is processed as arc surface, the contact area between adsorbent and up-hole plate lower surface is increased, to ensure the stability of up-hole plate position, avoid causing up-hole plate misalignment because gas pressure is excessive, even rollover makes adsorbent escape, compared with existing adsorbent compaction process, by slow in adsorbent filling process, at the uniform velocity and continually by funnel pour Ta Nei into and beat tower body outer wall and make adsorbent evenly and be distributed in closely in tower, compared with existing packing method, isolated methane concentration is higher, the rate of recovery of methane improves 8 percent, during compression, hold down gag is loaded in tower body, spring meeting automatic height adjustment, realize the compression of adsorbent, compression operating process is simple, and effectively decrease the leakage escape amount of adsorbent in adsorption tower running by uniform setting of flexible fastening bar, compared with compressing with existing adsorbent, the escape amount of adsorbent reduces 97 percent, operating efficiency improves 6 percent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adsorption tower using hold down gag of the present invention;
Fig. 2 is the main sectional view of Fig. 1;
Fig. 3 is the upward view of up-hole plate;
Fig. 4 is pressure-changing process flow figure.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 ~ Fig. 3 illustrates present embodiment, present embodiment is used for the hold down gag of adsorbent in pressure-swing absorber, comprise cover plate 1, ring flange 2 and tower body 3, tower body 3 is cylindrical shape, the lower end of ring flange 2 and the upper end of tower body 3 affixed, cover plate 1 center is coated with escape pipe 4, escape pipe 4 is affixed with cover plate 1, the bottom of escape pipe 4 is processed with some ventholes 5 along its circumferencial direction, cover plate 1 is positioned at the upper end of ring flange 2 and affixed by bolt with ring flange 2, hold down gag for adsorbent in pressure-swing absorber also comprises up-hole plate 6, guide post 7, end socket 8 and some flexible fastening bars 9, up-hole plate 6 is circular slab, the upper surface of up-hole plate 6 is plane, the lower surface of up-hole plate 6 is arc surface, up-hole plate 6 axially offers the first through hole 10 and some second through holes along it, first through hole 10 is positioned at up-hole plate 6 circle centre position, the upper end of flexible fastening bar 9 is fixed in the lower surface of cover plate 1, the lower end of flexible fastening bar 9 is fixed in the upper surface of up-hole plate 6, flexible fastening bar 9 is along the uniform setting of up-hole plate 6 circumferencial direction, the upper end of guide post 7 and the lower end of escape pipe 4 affixed, up-hole plate 6 is sleeved on guide post 7, end socket 8 is positioned at the lower end of up-hole plate 6 and is threaded with guide post 7.
The lower surface of up-hole plate 6 is arc surface, increase the contact area between up-hole plate and adsorbent, adopt flexible fastening bar can produce stable pressure to up-hole plate along uniform setting of up-hole plate circumferencial direction, prevent up-hole plate misalignment from even turning on one's side, adsorbent is caused to be escaped, up-hole plate can move up and down along guide post, according to different adsorbent Height Adjustment up-hole plate positions.
The distance of the ring flange 2 that under prior art condition, the fixed position of up-hole plate 6 is affixed with it should be less than the length of flexible fastening bar 9, and the material of flexible fastening bar 9 can be, but not limited to carbon steel, and its length range is 5cm ~ 30cm.
The length range of guide post 7 is 10cm ~ 40cm, preferred 15cm ~ 30cm.
Detailed description of the invention two: composition graphs 1 and Fig. 2 illustrate present embodiment, the number of described flexible fastening bar 9 is three.Design like this, can make apparatus structure simple while guarantee adsorbent impaction state.Other composition is identical with detailed description of the invention one with annexation.
Detailed description of the invention three: composition graphs 2 illustrates present embodiment, the internal diameter size of described ring flange 2 is consistent with the internal diameter size of tower body 3.Design like this, is convenient to install orifice plate 12.Other composition is identical with detailed description of the invention one with annexation.
Detailed description of the invention four: composition graphs 1 and Fig. 2 illustrate present embodiment, described flexible fastening bar 9 is for locking pneumatic spring.Design like this, the expediently adjustment of orifice plate 6 height and the compression of guarantee adsorbent.Other composition and annexation and detailed description of the invention one, two or three identical.
Detailed description of the invention five: composition graphs 1 and Fig. 2 illustrate present embodiment, described flexible fastening bar 9 is friction-type pneumatic spring.Design like this, the expediently adjustment of orifice plate 6 height and the compression of guarantee adsorbent.Other composition and annexation and detailed description of the invention one, two or three identical.
Detailed description of the invention six: composition graphs 1 and Fig. 2 illustrate present embodiment, described flexible fastening bar 9 is the towed pneumatic spring of self-locking type.Design like this, the expediently adjustment of orifice plate 6 height and the compression of guarantee adsorbent.Other composition and annexation and detailed description of the invention one, two or three identical.
Detailed description of the invention seven: composition graphs 1 ~ Fig. 3 illustrates present embodiment, the diameter of the second through hole 11 is less than 1mm.Design like this, prevents adsorbent from escaping from the second through hole 11.Other composition is identical with detailed description of the invention one with annexation.
Detailed description of the invention eight: composition graphs 2 illustrates present embodiment, the chord length of the arc surface of up-hole plate 6 lower end is 80 ﹪ ~ 95 ﹪ of up-hole plate 6 diameter.Other composition is identical with detailed description of the invention one with annexation.
Detailed description of the invention nine: composition graphs 1 ~ Fig. 3 illustrates present embodiment, use the adsorbent compressing method of above-mentioned hold down gag, concrete steps are:
Step one: the cover plate 1 opening tower body 3 upper end, installs orifice plate 12, loads supporter 13 and cushion 14 successively;
Step 2: prepare a funnel, be placed in by funnel on adsorption tower upper flanges dish 2, filled with adsorbent 15, pours in funnel by adsorbent 15 slowly, at the uniform velocity and continuously, meanwhile, the outer wall beaing adsorption tower of continuous uniform;
Step 3: adsorbent 15 has been loaded rear 50s ~ 70s and stopped beaing;
Step 4: absorbent compressing device is loaded in adsorption tower tower body 3, make lower surface and adsorbent 15 close contact of up-hole plate 6, then locked flexible fastening bar 9, with bolt by affixed to cover plate 1 and ring flange, the now filling of adsorbent 15 in tower body 3 and compacting process terminate.
After above-mentioned several step completes, adopt compressed air to do air-tight test to whole adsorption tower, ensure that the air-tightness of whole adsorption tower is good, after air-tight test, confirm all valve closings, open intake valve, use nitrogen or helium to rinse adsorbent, whole process probably ensures 10-20 minute, when to guarantee in tower without air, after first closing air outlet valve, after continuing inflated with nitrogen or helium to operating pressure (0.5-0.7MPa), then close intake valve.Open compressor power, compressor fills biogas, till compressor delivery pressure reaches setting value.Open intake valve, the flow of adjustment mass flow controller is a certain amount of, fills biogas to adsorption tower.Biogas measuring instrument on-line monitoring adsorption tower outlet side methane concentration, record data.
Supporter 13 and cushion 14 are the various supporter 13 for biogas pressure-swing absorber in prior art, supporter 13 can be, but not limited to marble, its altitude range is 3cm ~ 15cm, be preferably 5cm ~ 10cm, cushion 14 can be, but not limited to cotton, its altitude range is 0.5cm ~ 2cm, is preferably 1cm ~ 1.5cm.
Embodiment: after installing orifice plate 12, to load thickness be successively the marble filler of 5cm and thickness is the cotton layer of 1cm, the filling calculating adsorbent 15 in tower body 3 is highly 100cm, measure appropriate adsorbent 15, by adsorbent 15 slowly, at the uniform velocity and pour in adsorption tower continually by funnel, the outer wall beaing adsorption tower of continuous uniform simultaneously, stop beaing after rear 50s ~ 70s loaded by adsorbent 15, adsorbent 15 hold down gag is installed, wherein flexible fastening bar 9 is for can lock pneumatic spring, number is three, distribution triangular in shape.After testing, the table composed as follows of unstripped gas adopted, this adsorption tower under 0.7MPa, gas superficial velocity are 0.06m/s condition, after running 1800h, the volume fraction of isolated methane is 96.2%, and it is 0Kg that adsorption tower runs adsorbent 15 amount revealing escape for 60 days afterwards.
| Composition | Content V% (wet basis) | Content V% (butt) |
| CO 2 | 45.90 | 54.45 |
| CH 4 | 37.56 | 44.55 |
| H2S | 1 | 1 |
| H2O | 15.54 | 0 |
| Add up to | 100.00 | 100 |
| Pressure Mpa | 0.001 | 0.001 |
| Temperature DEG C | 55 | 55 |
Claims (9)
1. for the hold down gag of adsorbent in pressure-swing absorber, comprise cover plate (1), ring flange (2) and tower body (3), tower body (3) is cylindrical shape, the lower end of ring flange (2) and the upper end of tower body (3) affixed, cover plate (1) center is coated with escape pipe (4), escape pipe (4) is affixed with cover plate (1), the bottom of escape pipe (4) is processed with some ventholes (5) along its circumferencial direction, cover plate (1) is positioned at the upper end of ring flange (2) and affixed by bolt with ring flange (2), it is characterized in that: the hold down gag for adsorbent in pressure-swing absorber also comprises up-hole plate (6), guide post (7), end socket (8) and some flexible fastening bars (9), up-hole plate (6) is circular slab, the upper surface of up-hole plate (6) is plane, the lower surface of up-hole plate (6) is arc surface, up-hole plate (6) axially offers the first through hole (10) and some second through holes along it, first through hole (10) is positioned at up-hole plate (6) circle centre position, the upper end of flexible fastening bar (9) is fixed in the lower surface of cover plate (1), the lower end of flexible fastening bar (9) is fixed in the upper surface of up-hole plate (6), flexible fastening bar (9) is along the uniform setting of up-hole plate (6) circumferencial direction, the upper end of guide post (7) and the lower end of escape pipe (4) affixed, up-hole plate (6) is sleeved on guide post (7), end socket (8) is positioned at the lower end of up-hole plate (6) and is threaded with guide post (7).
2. the hold down gag for adsorbent in pressure-swing absorber according to claim 1, is characterized in that: the number of described flexible fastening bar (9) is three.
3. the hold down gag for adsorbent in pressure-swing absorber according to claim 1, is characterized in that: the internal diameter size of described ring flange (2) is consistent with the internal diameter size of tower body (3).
4. the hold down gag for adsorbent in pressure-swing absorber according to claim 1,2 or 3, is characterized in that: described flexible fastening bar (9) is for locking pneumatic spring.
5. the hold down gag for adsorbent in pressure-swing absorber according to claim 1,2 or 3, is characterized in that: described flexible fastening bar (9) is friction-type pneumatic spring.
6. the hold down gag for adsorbent in pressure-swing absorber according to claim 1,2 or 3, is characterized in that: described flexible fastening bar 9 is the towed pneumatic spring of self-locking type.
7. the hold down gag for adsorbent in pressure-swing absorber according to claim 1, is characterized in that: the diameter of the second through hole (11) is less than 1mm.
8. the hold down gag for adsorbent in pressure-swing absorber according to claim 1, is characterized in that: the chord length of the arc surface of up-hole plate (6) lower end is 80 ﹪ ~ 95 ﹪ of up-hole plate (6) diameter.
9. use an adsorbent compressing method for the hold down gag described in claim 1, concrete steps are:
Step one: the cover plate (1) opening tower body (3) upper end, installs orifice plate (12), loads supporter (13) and cushion (14) successively;
Step 2: prepare a funnel, funnel is placed on adsorption tower upper flanges dish (2), filled with adsorbent (15), adsorbent (15) is poured in funnel slowly, at the uniform velocity and continuously, meanwhile, the outer wall beaing adsorption tower of continuous uniform;
Step 3: adsorbent (15) has been loaded rear 50s ~ 70s and stopped beaing;
Step 4: absorbent compressing device is loaded in adsorption tower tower body, make lower surface and the adsorbent close contact of up-hole plate, then locked flexible fastening bar (9), with bolt by cover plate and ring flange affixed, adsorbent realizes compressing by flexible fastening bar, and the now filling of adsorbent (15) in tower body (3) and compacting process terminate.
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| CN201510796570.0A CN105289201B (en) | 2015-11-18 | 2015-11-18 | Pressing device and adsorbent compressing method for adsorbent in pressure-swing absorber |
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| CN201510796570.0A CN105289201B (en) | 2015-11-18 | 2015-11-18 | Pressing device and adsorbent compressing method for adsorbent in pressure-swing absorber |
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| CN105289201B CN105289201B (en) | 2018-04-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861371A (en) * | 2017-03-22 | 2017-06-20 | 常熟理工学院 | A kind of biogas pressure-variable adsorption tower apparatus |
| CN108261893A (en) * | 2016-12-30 | 2018-07-10 | 天津市华赛尔气体有限公司 | A kind of cut-in type oxygen purification device |
| CN108579324A (en) * | 2018-07-11 | 2018-09-28 | 湖南科技大学 | It is a kind of to recycle Br in brominated flue gas2Device and method |
| CN113041783A (en) * | 2021-04-18 | 2021-06-29 | 成都同创伟业新能源科技有限公司 | Preparation method and equipment of compensating type adsorber pressing device |
| CN116585989A (en) * | 2023-07-18 | 2023-08-15 | 上海联风气体有限公司 | Tower and automatic assembly method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202590577U (en) * | 2012-05-11 | 2012-12-12 | 杭州盛大高科技机电有限公司 | Spring pressing device |
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2015
- 2015-11-18 CN CN201510796570.0A patent/CN105289201B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202590577U (en) * | 2012-05-11 | 2012-12-12 | 杭州盛大高科技机电有限公司 | Spring pressing device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108261893A (en) * | 2016-12-30 | 2018-07-10 | 天津市华赛尔气体有限公司 | A kind of cut-in type oxygen purification device |
| CN106861371A (en) * | 2017-03-22 | 2017-06-20 | 常熟理工学院 | A kind of biogas pressure-variable adsorption tower apparatus |
| CN108579324A (en) * | 2018-07-11 | 2018-09-28 | 湖南科技大学 | It is a kind of to recycle Br in brominated flue gas2Device and method |
| CN108579324B (en) * | 2018-07-11 | 2023-05-09 | 遵义师范学院 | Br in recovered bromine-containing flue gas 2 Apparatus and method of (a) |
| CN113041783A (en) * | 2021-04-18 | 2021-06-29 | 成都同创伟业新能源科技有限公司 | Preparation method and equipment of compensating type adsorber pressing device |
| CN116585989A (en) * | 2023-07-18 | 2023-08-15 | 上海联风气体有限公司 | Tower and automatic assembly method thereof |
| CN116585989B (en) * | 2023-07-18 | 2023-10-31 | 上海联风气体有限公司 | Tower and automatic assembly method thereof |
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