CN1845779A - Oxygen enricher and rotary valve - Google Patents
Oxygen enricher and rotary valve Download PDFInfo
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- CN1845779A CN1845779A CN 200480025640 CN200480025640A CN1845779A CN 1845779 A CN1845779 A CN 1845779A CN 200480025640 CN200480025640 CN 200480025640 CN 200480025640 A CN200480025640 A CN 200480025640A CN 1845779 A CN1845779 A CN 1845779A
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- cylinder
- adsorbing cylinder
- adsorbing
- aperture
- oxygen
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- 239000001301 oxygen Substances 0.000 title claims description 86
- 229910052760 oxygen Inorganic materials 0.000 title claims description 86
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 85
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 44
- 239000007789 gas Substances 0.000 claims description 43
- 239000012530 fluid Substances 0.000 claims description 41
- 229910052757 nitrogen Inorganic materials 0.000 claims description 22
- 239000003463 adsorbent Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 7
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
According the present invention, an oxygen enriched gas is generated by adsorbing and removing nitrogen gas from air with an oxygen concentrating apparatus which conducts the steps of (1) pressurizing one of the adsorption cylinders by directing the compressed air; (2) removing the oxygen enriched gas from said one of the adsorption cylinders to the output conduit; (3) reducing the pressure in said one of the adsorption cylinders by directing the oxygen enriched gas into one of the other adsorption cylinders to increase the pressure in the one of the other adsorption cylinders; (4) evacuating the internal gas out of said one of the adsorption cylinders; and (5) increasing the pressure in said one of the adsorption cylinders by directing the oxygen enriched gas into said one of the adsorption cylinders from one of the other adsorption cylinders in which the pressure is decreased in step (3).
Description
Background of invention
1. invention field
The present invention relates to a kind of oxygen enricher and rotary valve.
2. description of related art
Figure 29 is the schematic diagram of transformation type oxygen enricher 300, this equipment has two adsorbing cylinder 302a and 302b, be used for supplying with compressed-air actuated air compressor 304 to adsorbing cylinder 302a and 302b by conduit 308, four-way control valve 306, conduit 310a and 310b, oxygen rich gas passes through output duct 312a and 312b and shut off valve 318 O to its supply from adsorbing cylinder 302a and 302b
2Tank 320.Oxygen rich gas is from O
2Tank is supplied with to the user by conduit 322 and flow control valve 324.Between output duct 312a and 312b, be provided with aperture 314 and equilibrated valve 316.
According to this oxygen enricher 300, control example is as at USP2,944,627, USP3,237,377 and Japanese Unexamined Patent Publication (Kokai) No.10-151315 in each step of disclosed oxygen concentration process and the efficient that improves equipment be difficult, this is owing to used four-way control valve 306.
JPP ' 315 has also described a kind of oxygen enricher with rotary valve rather than four-way control valve, so that switch the step of flow direction and control oxygen concentration process.But traditional rotary valve has such problem, promptly exists unbalance in the pressure at the interface between rotor that is applied to rotary valve and stator.
Summary of the invention
The present invention is intended to solve above-mentioned prior art problem, and the object of the invention is to provide a kind of oxygen enricher, and this equipment has solved the problems referred to above of prior art.
According to the present invention, a kind of oxygen enricher is provided, so that produce oxygen rich gas by absorption from air and removing nitrogen, this equipment comprises: a plurality of adsorbing cylinders that are filled with adsorbent, this adsorbent optionally adsorbs nitrogen more than oxygen, and adsorbing cylinder has first and second apertures; Be used for by first aperture lead user's output duct of oxygen rich gas; Be used for compressed air being supplied with the device of adsorbing cylinder by second aperture; Be used for by second aperture the device of nitrogen from the adsorbing cylinder discharge; And the valve gear that is used for allowing oxygen enricher to carry out following operation in each adsorbing cylinder order:
(1) by guiding compressed air by its second aperture and with a pressurization in the adsorbing cylinder;
(2) by its first aperture oxygen rich gas described from adsorbing cylinder is discharged to output duct,
(3) oxygen rich gas is directed among in other adsorbing cylinder one by its first aperture by its first aperture described from adsorbing cylinder as Purge gas, from this other adsorbing cylinder one discharges internal gas; And
(4) pass through its second aperture with the described discharge of internal gas from adsorbing cylinder.
And, another feature according to the present invention, a kind of oxygen enricher is provided, so that produce oxygen rich gas by absorption from air and removing nitrogen, this equipment comprises: a plurality of adsorbing cylinders that accommodate adsorbent, this adsorbent optionally adsorbs nitrogen more than oxygen, and adsorbing cylinder has first and second apertures; Be used for by first aperture lead user's output duct of oxygen rich gas; Be used for compressed air being supplied with the device of adsorbing cylinder by second aperture; Be used for by second aperture the device of nitrogen from the adsorbing cylinder discharge; And the valve gear that is used for allowing oxygen enricher to carry out following operation in each adsorbing cylinder order:
(1) by guiding compressed air by its second aperture and with a pressurization in the adsorbing cylinder;
(2) by its first aperture oxygen rich gas described from adsorbing cylinder is discharged to output duct,
(3) oxygen rich gas is directed among in other adsorbing cylinder one improving the pressure among in this other adsorbing cylinder by its first aperture by first aperture described from adsorbing cylinder, thereby reduces pressure among in the adsorbing cylinder described one; And
(4) pass through its second aperture with the described discharge of internal gas from adsorbing cylinder.
And, another feature according to the present invention, provide a kind of oxygen enricher that utilizes to pass through to adsorb from air and remove the method that nitrogen produces oxygen rich gas, this equipment comprises: a plurality of adsorbing cylinders that accommodate adsorbent, and this adsorbent optionally adsorbs nitrogen more than oxygen; Be used for lead user's output duct of oxygen rich gas; Be used for compressed air is supplied with the device of adsorbing cylinder; And be used for the device of nitrogen from the adsorbing cylinder discharge, this method may further comprise the steps:
(1) by guiding compressed air and with a pressurization in the adsorbing cylinder;
(2) oxygen rich gas described from adsorbing cylinder is discharged to output duct;
(3), thereby reduce pressure among in the adsorbing cylinder described one by oxygen rich gas being directed among in other adsorbing cylinder improving the pressure among in this other adsorbing cylinder;
(4) with the described discharge of internal gas from adsorbing cylinder; And
(5) improve pressure among in this adsorbing cylinder described one among described by will being directed among oxygen rich gas from other adsorbing cylinder that pressure has wherein reduced in the adsorbing cylinder step (3).
And, according to another feature of the present invention, a kind of rotary valve that is applicable in the running system is provided, the selectivity flow channel group that this system has a plurality of public flow channels and is made of a plurality of son groups, each son group has the flow channel of similar number M, so that be communicated with in switch fluids between at least one flow channel of at least one and selectivity flow channel group of a plurality of public flow channels and/or between the flow channel of son group, this rotary valve comprises: comprise the stator of the plate member with relative front side and rear side, a plurality of ports that extend through plate member and be communicated with a plurality of sub flow channel fluid of organizing of public flow channel and selectivity flow channel group between this front side and rear side; Can be around axis about the stator rotor rotated, this rotor comprise have with stator before the front side of side contacts and the plate member of relative rear side, this plate member of rotor forms a plurality of openings in its front side, each opening is communicated with each port fluid of rotor, and (n: the configuration of front side is consistent with the configuration of rotor front side in the time of integer) when rotor rotation 1/n changes thereby these a plurality of openings of stator are symmetrical arranged around axis; Stator port with the flow channel fluid of the different son groups of selectivity flow channel group is communicated with is provided with along the circle with different diameters around axis; Each port that is communicated with flow channel fluid among of child group, it is arranged on as in the upper/lower positions any one along circle: (i) position, (m+i) position, (2m+i) position, (3m+i) position ..., ((n-1) m+i) position (i: integer=1 is to m); And these position equalizations circle is divided into a plurality of (nm) section.
Description of drawings
With reference now to accompanying drawing, these and other objects and advantage and description further are discussed, wherein:
Fig. 1 is the signal according to the oxygen enricher of first embodiment of the invention;
Fig. 2 is the partial cross section according to the inspissator of first embodiment of the invention;
Fig. 3 is the exploded perspective illustration of the rotary valve with lower end of the inspissator of Fig. 2;
Fig. 4 is the plan view of lower end;
Fig. 5 is the plan view that is connected to the rotary valve stator of lower end;
Fig. 6 is the plan view that is similar to Fig. 4, and wherein the lower end is shown in broken lines;
Fig. 7 is the plan view of rotary valve stator front side;
Fig. 8 is the plan view of rotary valve stator rear side;
Fig. 9 is the plan view that is similar to Fig. 7, and wherein stator is shown in broken lines;
Figure 10 is stator and the rotor assembly cross section along line X-X in Fig. 9;
Figure 11 is stator and the rotor assembly cross section along line XI-XI in Fig. 9;
Figure 12 is the plan view of rotor front side, and wherein stator illustrates with solid line, so that explain the operation according to the oxygen concentrator of first embodiment
Figure 13 is the plan view that is similar to Figure 12, and the rotor front side is shown, and it has rotated 15 degree about stator from position shown in Figure 12 along direction of rotation R;
Figure 14 is the chart that illustrates according to the performed process circulation of the oxygen concentrator of first embodiment;
Figure 15 is the chart that illustrates according to the performed process circulation of the oxygen concentrator of first embodiment;
Figure 16 is the partial cross section according to the inspissator of second embodiment of the invention;
Figure 17 is the plan view that has the rotary valve of Figure 16 inspissator lower end;
Figure 18 is the plan view of rotary valve stator;
Figure 19 is the plan view of lower end;
Figure 20 is the plan view that is similar to Figure 19, and wherein adsorbing cylinder is shown in broken lines;
Figure 21 is the plan view of rotary valve rotor rear side;
Figure 22 is the plan view of rotary valve rotor front side;
Figure 23 is rotor cross section along line A-A in Figure 22;
Figure 24 is the cross section of the assembly of lower end, stator and rotor along the line IIXIV-IIXIV of Figure 17;
Figure 25 is the cross section of the assembly of lower end, stator and rotor along the line IIXV-IIXV of Figure 17;
Figure 26 is the chart that illustrates according to the performed process circulation of the oxygen concentrator of second embodiment;
Figure 27 is the plan view of rotor front side, and wherein stator illustrates with solid line, so that explain the operation according to the oxygen concentrator of second embodiment;
Figure 28 is the plan view that is similar to Figure 12, and the rotor front side is shown, and it has rotated 15 degree about stator from position shown in Figure 12 along direction of rotation R; And
Figure 29 is the signal of prior art oxygen enricher.
The description of preferred embodiment
Below with reference to accompanying drawing the preferred embodiments of the present invention are described.
In Fig. 1, the oxygen enricher according to first embodiment of the invention is shown.Oxygen enricher 10 has oxygen concentrator 100, and it is by producing oxygen rich gas from air absorption and separation of nitrogen; Air feeder comprises compressor 12 and filter 14, so that supply with compressed air by air supplying duct 16 to oxygen concentrator 100; Exhaust apparatus comprises vavuum pump 18 and muffler 20, so that extract nitrogen by exhaust manifolds 22; Container or O
2Tank 26; Pressure-control valve 28; Flow control valve 30, it is provided with so that with the oxygen rich gas user that leads along oxygen supplying duct 24.
With reference to figure 2, oxygen concentrator 100 has a plurality of adsorbing cylinders 102, they be arranged in parallel and be filled with adsorbent for example zeolite to be used for optionally adsorbing nitrogen more than oxygen; Top and bottom 104 and 106 keep a plurality of adsorbing cylinders 102 betwixt; Rotary valve 120 and driving mechanism comprise motor 108 and gear-box 110, are used for around the axis rotation rotary valve 120 that is parallel to adsorbing cylinder 102; Spring 112 is used for the lid of bias voltage rotary valve 120 as described below; And the bearing 114 that allows rotary valve 120 rotations.
With reference to figure 3 and 4, lower end 106 further has the C-shape output magazine 106g of the feed path 106a extension that is provided with around the center, leads to output magazine 106g and fluid and is connected to the output channel 106e of oxygen supplying duct 24 and the air discharge duct 106f that centers on the output magazine 106g that is communicated with exhaust passage 106b fluid.
In Fig. 3, rotary valve 120 has stator 130, and it comprises the circular slab parts that are fixedly connected to lower end 106, and comprises and utilize the rotor 140 of motor 108 with respect to the circular slab parts of stator 130 rotation.With reference to figure 5 and 6, stator 130 has the supply port 130a that the center is provided with, four output port 130b, and four first port one 30c, four exhaust port 130d, four second port one 30e, and sealed port 130f, it extends through the plate member of stator 130.Supplying with port 130a is communicated with the feed path 106a fluid of lower end 106.Output port 130b is communicated with output channel 106e fluid by output magazine 106g.The first port one 30c is communicated with the second channel 106d fluid of lower end 106.Exhaust port 130d is communicated with exhaust passage 106b fluid by air discharge duct 106f.The second port one 30e is communicated with the first passage 106c fluid of lower end 106.Sealed port 130f is communicated with exhaust passage 106b fluid by air discharge duct 106f.
With reference to figure 7-11, rotor 140 has and the front surface 141a of stator 130 contacts and relative rear surface 141b.On front surface 141a, rotor 140 forms three first recess 140c, three second recess 140e that connect by the mutual fluid of circular trough 140f, three the 3rd recess 140g and circular seal recess 140i.Circular trough 140f is set to be communicated with the exhaust port 130d fluid of stator 130.On the 141b of rear surface, rotor 140 forms container 140m with containment cap 144, inside groove 140j and water jacket 140k.Flow channel 143 in being arranged at container 140m lid 144 and rotor 140 between form.Rotor 140 also has the supply opening 140a that the center is provided with, three first opening 140b, and six second opening 140d, and three the 3rd opening 140h, it axially extends by rotor 140.The 3rd opening 140h is connected to inside groove 140j with the 3rd recess 140g fluid.
With reference to figure 12-15, the operation according to the oxygen concentrator 100 of first embodiment is described below.In first embodiment, oxygen concentrator 100 has four adsorbing cylinders 102, and in Figure 12 and 13, its position utilizes reference marker 1-4 to represent.The operation of oxygen concentrator 100 is described about one in adsorbing cylinder cylinder 1 that promptly is arranged on position 1 in the following description.
Step I (pressurization steps)
Rotor 140 is in initial position shown in Figure 12, thereby wherein the first opening 14b0 with the second port one 30e of stator 130 one aims at air from the supply opening 140a of the supply port 130a of compressor 12 by feed path 106a, the stator 130a of air supplying duct 16, lower end 106, rotor 140, at stator 140 with cover the passage 143, the first opening 140b of rotor 140, the second port one 30e of stator 130 and the bottom aperture of cylinder 1 that form between 144 and supply to cylinder 1.
Step II (pressurization-production stage)
Rotor 140 rotates to the position of rotation that is in 15 degree from initial position along direction R, the wherein aforesaid first opening 140b still supplies to cylinder 1 in alignment with the second port one 30e and compressed air.Simultaneously, the first recess 140c of rotor 140 aims at the output port 130b and the first port one 30c of stator 130.This position of rotation of rotor 140 allows oxygen rich gas by the top aperture of cylinder 1, the path 10 4a of upper end 104, connecting duct 116, the second channel 106d of lower end 106, the first port one 30c of stator 130, the first recess 140c of rotor 140, the output port 130b of stator 130, output magazine 106g, the output channel 106e of lower end 106 and output duct 24 flow to the user from cylinder 1.
Step II I (production stage)
Rotor 140 rotates to the position of rotation that are in 30 degree from initial position, the second port one 30e of the first opening 140b misalignment stator 130 of rotor 140 herein, and therefore, compressed air stops to the supply of cylinder 1.Yet the first recess 140c still aims at the output port 130b and the first port one 30c of stator 130.Therefore, oxygen rich gas still supplies to the user from cylinder 1 as described above.
Step IV (decompression-equilibrium step)
Rotor 140 rotates to the position of rotation that are in 45 degree from initial position, herein the first port one 30c that is communicated with cylinder 1 and 3 of two alignings among six second opening 140d.This position of rotation of rotor 140 allows the first port one 30c, the second opening 140d, water jacket 140k, the second opening 140d of rotor 140, the first port one 30c of stator 130, second channel 106d, connecting duct 116, the path 10 4a of upper end 104 and the top aperture of cylinder 4 of lower end 106 of second channel 106d, the stator 130 of path 10 4a, connecting duct 116, the lower end 106 of the top aperture of oxygen rich gas by cylinder 1, upper end 104 to flow to cylinder 3 from cylinder 1.Therefore, the pressure in reduction of the pressure in the cylinder 1 and the cylinder 3 increases so that the pressure in compensating cylinder 1 and 3.
Step V (depressurization steps synchronously)
Rotor 140 is rotated in place in the position of rotation of 60 degree from initial position, herein the first port one 30c that is communicated with cylinder 1 and 4 of two alignings among three of stator 140 the 3rd recess 140g.This position of rotation of rotor 140 allows oxygen rich gas as Purge gas, by top aperture, the path 10 4a of upper end 104, the connecting duct 116 of cylinder 1, the second channel 106d of the 3rd recess 140g of the first port one 30c of the second channel 106d of lower end 106, stator 130, the 3rd recess 140g, the 3rd opening 140h, inside groove 140j, the 3rd opening 140h, stator 140, the first port one 30c of stator 130, lower end 106, connecting duct 116, the path 10 4a of upper end 104 and the top aperture of cylinder 4 flow to cylinder 4 from cylinder 1.At this moment, in cylinder 4, carry out the purifying step that will be described below.
Step VI (steps of exhausting)
Rotor 140 is rotated in place in the position of rotation of 75 degree from initial position, and the second recess 140e of rotor 140 aims at the second port one 30e of stator 130 herein.This position of rotation of rotor 140 allows the gas in cylinder 1 to utilize the second port one 30e, the second recess 140e, the circular trough 140f of rotor 140, exhaust port 130d, the air discharge duct 106f of stator 130 of first passage 106c, the stator 130 of the bottom aperture of vavuum pump 22 by cylinder 1, lower end 106, the exhaust passage 106b and the exhaust manifolds 22 of lower end 106 to discharge.
Step VII (purifying step)
Rotor 140 rotates to the position of rotation that are in 90 degree from initial position, and the second port one 30e of stator 130 still aims at the first port one 30c that two alignings among three the 3rd recess 140g of the second recess 140e and stator 140 are communicated with cylinder 1 and 2 herein.Therefore, oxygen rich gas supplies to cylinder 1 as Purge gas from cylinder 2, and as described in about step V, but the gas in the cylinder 1 still is discharged from as described above.
Step VIII
(pressurization-equilibrium step) rotor 140 rotates to the position of rotation that are in 105 degree from initial position, herein the first port one 30c that is communicated with cylinder 1 and 3 of two alignings among six second opening 140d.This position of rotation of rotor 140 allows oxygen rich gas to flow to cylinder 1 from cylinder 3, and is as above described about step IV.
As depicted in the figures, in first embodiment, four output port 130b, four first port one 30c, four exhaust port 130d and four second port one 30e are provided with along the different circle around the rotation of rotor 140.And each port that is communicated with each adsorbing cylinder 102 fluid is arranged on any place with upper/lower positions along this circle: (i) position, (m+i) position, (2m+i) position, (3m+i) position ..., ((n-1) m+i) position (i: integer=1 is to m).Here, i be integer i=1 to m, m is that the number of adsorbing cylinder and n are the number of cycles of said process during the once rotation of rotor, is 3 in this first embodiment promptly.This layout prevents the same step of inspissator 100 at the position of rotation place of rotor 140 execution said process.
And according to the first embodiment of the present invention, feed path 106a, exhaust passage 106b and output channel 106e provide public flow channel.The top of adsorbing cylinder 102 or first aperture provide the flow channel of the first son group of selectivity flow channel group, and the bottom of adsorbing cylinder 102 or the second aperture 102a provide the flow channel of the second son group of selectivity flow channel group.
Below with reference to Figure 16-28 second embodiment of the present invention is described.
With reference to figure 21-23, rotor 240 has and the front surface 241a of stator 230 contacts and relative rear surface 241b.On front surface 241a, rotor 240 forms two first recess 240c, two second recess 240e that connect by the mutual fluid of circular trough 240f and circular seal recess 240i.Circular trough 240f is set to be communicated with the exhaust port 230d fluid of stator 230.On the 241b of rear surface, rotor 240 forms container 240m with containment cap 242, inside groove 240j and water jacket 240k.Flow channel 243 in being arranged at container 240m lid 242 and rotor 240 between form.Rotor 240 also has the supply opening 240a that the center is provided with, two first opening 240b, and four second opening 240d and four the 3rd opening 240g, it extends by rotor axial ground.
With reference to figure 26-28, the operation according to the oxygen concentrator 200 of second embodiment is described below.In a second embodiment, oxygen concentrator 200 has six adsorbing cylinders 202, and in Figure 26-28, its position utilizes reference marker 1-6 to represent.The operation of oxygen concentrator 200 is described about one in adsorbing cylinder cylinder 1 that promptly is arranged on position 1 in the following description.
Step I (pressurization steps)
Step II (pressurization-production stage)
Step II I (production stage)
Step IV (the first decompression-equilibrium step)
Step V (the second decompression-equilibrium step)
Step VI
(the 3rd decompression-equilibrium step) rotor 240 rotates to the position of rotation that is in 75 degree from initial position, and the second opening 240d aims at the first port 230c and while the 3rd opening 240g that are communicated with cylinder 1 and aims at the first port 230c that is communicated with cylinder 5 herein.This position of rotation of rotor 240 allows the first port 230c, the second opening 240d, water jacket 240k, the 3rd opening 240g of rotor 240, the first port 230c of stator 230, second channel 206d, connecting duct 216, the passage 204a of upper end 204 and the top aperture of cylinder 3 of lower end 206 of second channel 206d, the stator 230 of passage 204a, connecting duct 216, the lower end 206 of the top aperture of oxygen rich gas by cylinder 1, upper end 204 to flow to cylinder 5 from cylinder 1.Therefore, the pressure in reduction of the pressure in the cylinder 1 and the cylinder 5 increases so that the pressure in compensating cylinder 1 and 5.
Step VII (depressurization steps synchronously)
Step VIII (steps of exhausting)
Step IX (purifying step)
Step X (the 3rd pressurization-equilibrium step)
Step XI (the second pressurization-equilibrium step)
Step XII (the first pressurization-equilibrium step)
As depicted in the figures, in a second embodiment, six output port 230b, six first port 230c, three exhaust port 230d and six second port 230e are provided with along the different circle around the rotation of rotor 140.And each port that is communicated with each adsorbing cylinder 202 fluid is arranged on any place with upper/lower positions along this circle: (i) position, (m+i) position, (2m+i) position, (3m+i) position ..., ((n-1) m+i) position (i: integer=1 is to m).Here, i be integer i=1 to m, m is that the number of adsorbing cylinder and n are the number of cycles of said process during the once rotation of rotor, is 2 in this second embodiment promptly.This layout prevents the same step of inspissator 200 at the position of rotation place of rotor 240 execution said process.
And according to a second embodiment of the present invention, feed path 206a, exhaust passage 206b and output channel 206e provide public flow channel.The top of adsorbing cylinder 202 or first aperture provide the flow channel of the first son group of selectivity flow channel group, and the bottom of adsorbing cylinder 202 or second aperture provide the flow channel of the second son group of selectivity flow channel group.
Claims (7)
1. an oxygen enricher is used for by producing oxygen rich gas from air absorption and removing nitrogen, and described equipment comprises:
A plurality of adsorbing cylinders that are filled with adsorbent, described adsorbent optionally adsorbs nitrogen more than oxygen, and adsorbing cylinder has first and second apertures;
Be used for by first aperture lead user's output duct of oxygen rich gas;
Be used for compressed air being supplied with the device of adsorbing cylinder by second aperture;
Be used for by second aperture the device of nitrogen from the adsorbing cylinder discharge; And
The valve gear that is used for allowing oxygen enricher to carry out following operation in each adsorbing cylinder order:
(1) by guiding compressed air by its second aperture and with a pressurization in the adsorbing cylinder;
(2) by its first aperture oxygen rich gas described from adsorbing cylinder is discharged to output duct,
(3) oxygen rich gas is directed among in other adsorbing cylinder one by its first aperture by its first aperture described from adsorbing cylinder as Purge gas, from described other adsorbing cylinder one discharges internal gas; And
(4) pass through its second aperture with the described discharge of internal gas from adsorbing cylinder.
2. an oxygen enricher is used for by producing oxygen rich gas from air absorption and removing nitrogen, and described equipment comprises:
A plurality of adsorbing cylinders that are used to hold adsorbent, described adsorbent optionally adsorbs nitrogen more than oxygen, and adsorbing cylinder has first and second apertures;
Be used for by first aperture lead user's output duct of oxygen rich gas;
Be used for compressed air being supplied with the device of adsorbing cylinder by second aperture;
Be used for by second aperture the device of nitrogen from the adsorbing cylinder discharge; And
The valve gear that is used for allowing oxygen enricher to carry out following operation in each adsorbing cylinder order:
(1) by guiding compressed air by its second aperture and with a pressurization in the adsorbing cylinder;
(2) by its first aperture oxygen rich gas described from adsorbing cylinder is discharged to output duct,
(3) oxygen rich gas is directed among in other adsorbing cylinder one improving the pressure among in described other adsorbing cylinder by its first aperture by first aperture described from adsorbing cylinder, thereby reduces pressure among in the adsorbing cylinder described one; And
(4) pass through its second aperture with the described discharge of internal gas from adsorbing cylinder.
3. oxygen enricher according to claim 1, it is characterized in that, when oxygen rich gas described from adsorbing cylinder utilizes when being directed to described of other adsorbing cylinder described valve gear to close one first aperture in described and other adsorbing cylinder in the adsorbing cylinder.
4. oxygen enricher according to claim 1 is characterized in that described valve gear comprises rotary valve.
5. one kind is utilized oxygen enricher to pass through to adsorb from air and remove the method that nitrogen produces oxygen rich gas, and described equipment has a plurality of adsorbing cylinders that are used to hold adsorbent, and described adsorbent optionally adsorbs nitrogen more than oxygen; Be used for lead user's output duct of oxygen rich gas; Be used for compressed air is supplied with the device of adsorbing cylinder; And be used for the device of nitrogen from the adsorbing cylinder discharge be said method comprising the steps of:
(1) by guiding compressed air and with a pressurization in the adsorbing cylinder;
(2) oxygen rich gas described from adsorbing cylinder is discharged to output duct;
(3), thereby reduce pressure among in the adsorbing cylinder described one by oxygen rich gas being directed among in other adsorbing cylinder improving one pressure in described other adsorbing cylinder;
(4) with the described discharge of internal gas from adsorbing cylinder; And
(5) improve described one pressure in the described adsorbing cylinder among described by will being directed among oxygen rich gas from other adsorbing cylinder that pressure has wherein reduced in the adsorbing cylinder step (3).
6. one kind is applicable to the rotary valve in the running system, the selectivity flow channel group that described system has a plurality of public flow channels and is made of a plurality of son groups, each son group has the flow channel of similar number M, so that switch fluids is communicated with between at least one flow channel of at least one and selectivity flow channel group of a plurality of public flow channels and/or between the flow channel of child group, described rotary valve comprises:
The stator that comprises plate member with relative front side and rear side, a plurality of ports that between described front side and rear side, extend through plate member and be communicated with a plurality of sub flow channel fluid of organizing of public flow channel and selectivity flow channel group;
Can be around axis about the stator rotor rotated, described rotor comprise have with stator before the front side of side contacts and the plate member of relative rear side, the described plate member of rotor forms a plurality of openings in its front side, each opening is communicated with each port fluid of rotor, and (n: the configuration of front side is consistent with the configuration of rotor front side in the time of integer) when rotor rotation 1/n changes thereby described a plurality of openings of stator are symmetrical arranged around axis;
With the stator port that the different sub flow channel fluid of organizing of selectivity flow channel group is communicated with, it is along the circle setting with different diameters around axis;
Each port that is communicated with flow channel fluid among of child group is arranged on as in the upper/lower positions any one along circle: (i) position, (m+i) position, (2m+i) position, (3m+i) position, ..., ((n-1) m+i) position (i: integer=1 is to m); And
These positions are divided into circle a plurality of (nm) section equably.
7. rotary valve according to claim 6 is characterized in that, selects numerical value n to make not exist between n and m the greatest common factor (G.C.F.) greater than 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003316702A JP4739662B2 (en) | 2003-09-09 | 2003-09-09 | Oxygen concentrator |
| JP316702/2003 | 2003-09-09 | ||
| JP318005/2003 | 2003-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1845779A true CN1845779A (en) | 2006-10-11 |
Family
ID=34416521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480025640 Pending CN1845779A (en) | 2003-09-09 | 2004-09-09 | Oxygen enricher and rotary valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4739662B2 (en) |
| CN (1) | CN1845779A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103432863A (en) * | 2013-09-10 | 2013-12-11 | 周小山 | Pressure swing adsorption device |
| CN104271218A (en) * | 2012-03-09 | 2015-01-07 | 英瓦卡尔公司 | System and method for concentrating gas by adsorption |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2906495B1 (en) * | 2006-10-02 | 2008-12-26 | Sidel Participations | PRESSURE ROTATING DISPENSER AND CARROUSEL HOLLOW BODY TREATMENT MACHINE EQUIPPED WITH SAME |
| JP4979664B2 (en) * | 2008-09-29 | 2012-07-18 | 株式会社日立産機システム | Gas separation device |
| FR2937878B1 (en) * | 2008-11-03 | 2011-04-15 | Mil S | PRESSURE VARIATION ADSORPTION FLUID TREATMENT METHOD AND CORRESPONDING INSTALLATION |
| JP2013154340A (en) * | 2012-01-06 | 2013-08-15 | Kyuchaku Gijutsu Kogyo Kk | Method and apparatus for adsorption separation of oxygen and nitrogen from air |
| EP3478394B1 (en) | 2016-06-29 | 2022-01-19 | Koninklijke Philips N.V. | Rotary valve assembly for sieve beds for pressure swing adsorption control |
| US10765991B2 (en) * | 2017-08-10 | 2020-09-08 | Air Products And Chemicals, Inc. | Rapid cycle pressure swing adsorption process and adsorbent laminates for use therein |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1919557C3 (en) * | 1968-05-07 | 1978-10-26 | Union Carbide Corp., New York, N.Y. (V.St.A.) | Method and device for separating one or more components from gas mixtures by selective adsorption and subsequent desorption |
| JPS60210507A (en) * | 1984-03-31 | 1985-10-23 | Showa Denko Kk | Method for controlling turn-down in pressure fluctuation adsorption process |
| JPS6422319A (en) * | 1987-07-16 | 1989-01-25 | Mitsubishi Heavy Ind Ltd | Air separation equipment |
| JP2781646B2 (en) * | 1990-07-20 | 1998-07-30 | 三菱重工業株式会社 | Scavenging method of pressure swing type oxygen production equipment |
| JP3694343B2 (en) * | 1995-05-01 | 2005-09-14 | 昭和エンジニアリング株式会社 | PSA for low concentration oxygen |
-
2003
- 2003-09-09 JP JP2003316702A patent/JP4739662B2/en not_active Expired - Fee Related
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2004
- 2004-09-09 CN CN 200480025640 patent/CN1845779A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104271218A (en) * | 2012-03-09 | 2015-01-07 | 英瓦卡尔公司 | System and method for concentrating gas by adsorption |
| CN104271218B (en) * | 2012-03-09 | 2017-03-01 | 英瓦卡尔公司 | The system and method that concentrated gas are come by absorption |
| CN103432863A (en) * | 2013-09-10 | 2013-12-11 | 周小山 | Pressure swing adsorption device |
| CN103432863B (en) * | 2013-09-10 | 2015-03-11 | 周小山 | Pressure swing adsorption device |
| WO2015035694A1 (en) * | 2013-09-10 | 2015-03-19 | Zhou Xiaoshan | Pressure swing adsorption apparatus |
| US9731242B2 (en) | 2013-09-10 | 2017-08-15 | Ip Tech Pte. Ltd. | Pressure swing adsorption device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005081258A (en) | 2005-03-31 |
| JP4739662B2 (en) | 2011-08-03 |
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