CN111729467A - Small-size high-purity nitrogen adsorption tower - Google Patents
Small-size high-purity nitrogen adsorption tower Download PDFInfo
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- CN111729467A CN111729467A CN202010549081.6A CN202010549081A CN111729467A CN 111729467 A CN111729467 A CN 111729467A CN 202010549081 A CN202010549081 A CN 202010549081A CN 111729467 A CN111729467 A CN 111729467A
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- end cover
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- small
- purity nitrogen
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 52
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 26
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 235000013162 Cocos nucifera Nutrition 0.000 claims abstract description 21
- 244000060011 Cocos nucifera Species 0.000 claims abstract description 18
- 239000002808 molecular sieve Substances 0.000 claims abstract description 18
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 241000737241 Cocos Species 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 239000003463 adsorbent Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 12
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 6
- 238000005056 compaction Methods 0.000 abstract description 4
- 208000035193 Ring chromosome 10 syndrome Diseases 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/045—Physical processing only by adsorption in solids
- C01B21/0455—Physical processing only by adsorption in solids characterised by the adsorbent
- C01B21/0461—Carbon based materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/116—Molecular sieves other than zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0009—Physical processing
- C01B2210/0014—Physical processing by adsorption in solids
- C01B2210/0015—Physical processing by adsorption in solids characterised by the adsorbent
- C01B2210/0017—Carbon-based materials
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The embodiment of the invention relates to a small-sized high-purity nitrogen-making adsorption tower, which comprises an upper end cover, a lower end cover, a pattern plate assembly, an adsorption tower cylinder and a coconut pad, wherein the upper end cover is arranged on the upper end cover; the upper end cover is arranged on the top of the pattern plate assembly; the lower end cover is arranged at the bottom of the pattern plate assembly; the upper end cover corresponds to the lower end cover in position; the adsorption tower cylinder penetrates through the lower end cover, and the top surface of the adsorption tower cylinder is flush with the top surface of the lower end cover; the coconut palm pad is placed adsorb tower barrel top. The coconut pad is adopted to replace a spring to realize compaction, and a 100-mesh steel wire mesh is used to replace a 20-mesh steel wire mesh, so that the molecular sieve powder and the granular substances can be effectively sieved; an O-shaped sealing groove is designed on the protruding part at one end edge of the upper end cover, so that the sealing effect of the whole adsorption tower is ensured.
Description
Technical Field
The invention relates to a gas-distributing and sealing structure which is applicable to the pressure swing adsorption industry and used for compressing a packing adsorbent, in particular to the design of a gas-distributing and compressing sealing structure of a small-sized high-purity nitrogen-making adsorption tower.
Background
In the prior art, a nitrogen preparation process by a pressure swing adsorption molecular sieve air separation method generally adopts a double-tower structure, and adsorbents for separating oxygen and nitrogen are filled in two adsorption towers. In a traditional large adsorption tower, a pattern plate assembly generally consists of two layers of steel pore plates fully distributed with vent holes and three layers of 20-mesh steel wire meshes, and cannot effectively screen molecular sieve powder and granular substances; the pattern plate is pressed through the spring, and is pressed continuously, although the effect is feasible, the spring is pressed unevenly under the condition of air flow impact, and the installation is difficult; the structure of the prior standard flange cover is a little bigger, and the sealing effect is not very good.
Disclosure of Invention
The embodiment of the invention provides a small-sized high-purity nitrogen-making adsorption tower, which solves the technical problems that in the prior art, a gas-dividing compaction sealing structure of a small-sized high-purity nitrogen-making adsorption tower is difficult to seal and compact and molecular sieve powdery substances leak through structural innovation.
In order to achieve the aim, the invention provides a small-sized high-purity nitrogen production adsorption tower, which comprises an upper end cover, a lower end cover, a pattern plate assembly, an adsorption tower cylinder and a coconut pad;
the upper end cover is arranged on the top of the pattern plate assembly;
the lower end cover is arranged at the bottom of the upper end cover;
the adsorption tower cylinder penetrates through the lower end cover;
the coconut palm pad is placed adsorb tower barrel top.
Alternatively to this, the first and second parts may,
the small-sized high-purity nitrogen production adsorption tower comprises: and the molecular sieve is an adsorbent, is filled in the adsorption tower cylinder body and is tightly attached to the coconut pad.
Alternatively to this, the first and second parts may,
the upper end cover is cylindrical, and a plurality of bolt through holes are uniformly designed on the edge part of the upper end cover and are used for being fixedly connected with the lower end cover;
the middle of the upper end cover is provided with a screw hole fixedly connected with the pattern plate assembly;
a groove for ensuring the gas distribution effect and smooth airflow is designed at one end of the middle of the top of the upper end cover;
the other end of the middle of the top of the upper end cover is provided with a pressure gauge air intake;
the right middle bulge part at the bottom of the upper end cover is provided with an O-shaped sealing groove, so that the tower body is guaranteed to have a sealing effect with the adsorption tower.
Alternatively to this, the first and second parts may,
the lower end cover is cylindrical, and a plurality of bolt through holes are uniformly designed on the edge part of the lower end cover and are used for being fixedly connected with the upper end cover;
an O-shaped sealing groove is designed on a convex part in the middle of the bottom of the lower end cover, so that the sealing effect with the adsorption tower cylinder is ensured;
the O-shaped sealing groove of the middle bulge at the bottom of the upper end cover corresponds to the O-shaped sealing groove of the middle bulge at the bottom of the lower end cover.
Alternatively to this, the first and second parts may,
the edge part of the top of the pattern plate assembly is uniformly provided with a plurality of screw holes for being fixedly connected with the upper end cover.
Alternatively to this, the first and second parts may,
the small-sized high-purity nitrogen production adsorption tower comprises: m6, the M6 screw penetrates through the screw hole to fixedly connect the upper faceplate assembly and the upper end cover.
Optionally, the small-scale high-purity nitrogen adsorption tower comprises: and the O-shaped sealing ring is arranged in the O-shaped sealing groove of the upper end cover.
Alternatively to this, the first and second parts may,
the card assembly comprises: the upper and lower pattern plates are made of stainless steel net of 100 meshes;
the upper pattern plate and the lower pattern plate are both cylindrical structures;
the upper pattern plate and the lower pattern plate are vertically aligned according to the holes;
two layers of 100-mesh stainless steel nets are clamped between the upper pattern plate and the lower pattern plate, and one layer of 100-mesh stainless steel net is laid on the top of the upper pattern plate.
Alternatively to this, the first and second parts may,
the aperture of the 100-mesh stainless steel mesh is only 0.165mm, and the leakage of molecular sieve powder and granular substances can be effectively prevented.
Alternatively to this, the first and second parts may,
the coconut pad is cylindrical, is positioned at the top of the molecular sieve and is used for compressing the pattern plate.
The technical scheme has the following beneficial effects: according to the invention, the coconut pad is adopted to replace a spring to realize compaction, and the 100-mesh steel wire mesh is used to replace the 20-mesh steel wire mesh, so that the molecular sieve powder and the granular substances can be effectively sieved; an O-shaped sealing groove is designed on a convex part in the middle of the bottom of the upper end cover, so that the sealing effect of the whole adsorption tower is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a small-sized high purity nitrogen production adsorption column;
FIG. 2 is a schematic view of the fixed connection of the faceplate assembly;
FIG. 3 is a schematic view of a flower plate assembly;
FIG. 4 is a schematic view of a card construction;
fig. 5 is a schematic view of the upper end cap structure.
Description of the symbols:
an upper end cover-1, a lower end cover-2, a flower plate component-3, a coconut pad-4, an adsorption tower cylinder-5, a molecular sieve-6, an O-shaped sealing groove-7, an air outlet-8, a pressure gauge air inlet-9, an O-shaped sealing ring-10, an M6 screw-11, a flower plate-12, a 100-mesh screen-13,
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, a nitrogen preparation process by a pressure swing adsorption molecular sieve air separation method generally adopts a double-tower structure, and adsorbents for separating oxygen and nitrogen are filled in two adsorption towers. In a traditional large adsorption tower, a pattern plate assembly generally consists of two layers of steel pore plates fully distributed with vent holes and three layers of 20-mesh steel wire meshes, so that the leakage of molecular sieve powder and granular substances cannot be effectively prevented; the pattern plate is pressed through the spring, and is pressed continuously, although the effect is feasible, the spring is pressed unevenly under the condition of air flow impact, and the installation is difficult; the structure of the prior standard flange cover is a little bigger, and the sealing effect is not very good.
FIG. 1 is a schematic view of a small-sized high purity nitrogen production adsorption column;
a small-scale high purity nitrogen adsorption column comprising: the device comprises an upper end cover 1, a lower end cover 2, a flower plate assembly 3, an adsorption tower cylinder 5 and a coconut pad 4;
the upper end cover 1 is arranged on the top of the pattern plate assembly 3;
the lower end cover 2 is arranged at the bottom of the pattern plate assembly 3;
the upper end cover 1 corresponds to the lower end cover 2 in position;
the adsorption tower cylinder 5 penetrates through the lower end cover 2, and the top surface of the adsorption tower cylinder 5 is flush with the top surface of the lower end cover 2;
the coconut pad 4 is placed on the top of the adsorption tower cylinder 5.
Alternatively to this, the first and second parts may,
the small-sized high-purity nitrogen production adsorption tower comprises: and the molecular sieve 6 is an adsorbent, is filled in the cylinder body 5 of the adsorption tower and is tightly attached to the coconut pad 4.
Alternatively to this, the first and second parts may,
the lower end cover 2 is a hollow cylinder, 8 bolt through holes are uniformly designed at the edge part of the lower end cover and are used for being fixedly connected with the upper end cover 1;
and a second O-shaped sealing groove corresponding to the first O-shaped sealing groove is designed on the middle protruding part at the bottom of the lower end cover 2.
Alternatively to this, the first and second parts may,
the small-sized high-purity nitrogen production adsorption tower comprises: m6, and the M6 screw 11 penetrates through the screw hole to fixedly connect the upper faceplate assembly with the upper end cover 1.
Alternatively to this, the first and second parts may,
the small-sized high-purity nitrogen production adsorption tower comprises: and an O-shaped sealing ring 10 which is arranged in an O-shaped sealing groove 7 of the upper end cover.
Alternatively to this, the first and second parts may,
the coconut pad 4 is cylindrical and is positioned at the top of the molecular sieve 6 and used for pressing the pattern plate.
FIG. 2 is a schematic view of the fixed connection of the faceplate assembly;
FIG. 3 is a schematic view of a flower plate assembly;
FIG. 4 is a schematic view of a card construction;
alternatively to this, the first and second parts may,
the whole edge part of the pattern plate component 3 is uniformly designed with 8 screw holes for being fixedly connected with the upper end cover 1.
Alternatively to this, the first and second parts may,
the card assembly comprises: an upper flower plate, a lower flower plate and a 100-mesh stainless steel net 13;
the upper pattern plate and the lower pattern plate are both cylindrical structures;
the upper and lower flower plates are provided with small holes for free air flow;
the upper pattern plate and the lower pattern plate are vertically aligned according to the holes;
two layers of 100-mesh stainless steel nets 13 are clamped between the upper pattern plate and the lower pattern plate, and one layer of 100-mesh stainless steel net 13 is laid on the top of the upper pattern plate.
Alternatively to this, the first and second parts may,
the aperture of the 100-mesh stainless steel net 13 is 0.165 mm.
Fig. 5 is a schematic view of the upper end cap structure.
The upper end cover 1 is cylindrical, 8 bolt through holes are uniformly designed at the edge part of the upper end cover and used for being connected with the lower end cover
2, fixedly connecting;
the middle of the bottom surface of the upper end cover 1 is provided with 8 screw holes corresponding to the pattern plate component 3;
an air outlet 8 is designed on one side of the top of the upper end cover 1;
a pressure gauge air intake port 9 is arranged on the other side of the top of the upper end cover 1;
a first O-shaped sealing groove is designed in the middle protruding part of the bottom of the upper end cover 1.
Processing two pattern plates 12 with the thickness of 2mm, namely an upper pattern plate and a lower pattern plate, and cutting the pattern to enable the pattern plates to be spliced into a circle with the diameter of 148 mm; and (4) fully punching holes phi 6 in the range phi 120, and deburring the two sides after punching. Two machined phi 148 flower plates 12 are placed in up-and-down alignment according to the holes. The pattern plates are all in a cylindrical structure, two layers of 100-mesh stainless steel nets are clamped between the upper pattern plate and the lower pattern plate, one layer of 100-mesh stainless steel net 13 is laid on the top of the upper pattern plate, the mesh diameter of the 100-mesh stainless steel net 13 is 0.165mm, and 8 phi 6 screw through holes are uniformly distributed in phi 130 positions of the two pattern plates; trimming the corner edges. I.e. to form a card assembly.
Processing an upper end cover 1, wherein the upper end cover 1 is cylindrical, and 8 bolt through holes are uniformly designed in the edge part of the upper end cover 1 and are used for being fixedly connected with the lower end cover 2; the middle of the bottom surface of the upper end cover 1 is provided with 8 screw holes corresponding to the pattern plate component 3; an air outlet 8 is designed on one side of the top of the upper end cover 1; and is designed in front of the air outlet 8 for ensuring air distribution effect and smooth air flow
A pressure gauge air intake 9 is arranged on the other side of the top of the upper end cover; a first O-shaped sealing groove which can ensure the sealing effect with the adsorption tower cylinder body is designed at the middle bulge part at the bottom of the upper end cover 1.
Connecting and fixing the pattern plate assembly 3 and the upper end cover 1 through a screw 11 of M6; installing an O-shaped sealing ring 10 in an O-shaped sealing groove 7 of the upper end cover; forming the upper end cover sealing and gas distributing assembly. Cutting a block
Coconut mat 50mm thick. The coconut pad 4 is cylindrical, after the molecular sieve 6 is filled in the adsorption tower cylinder, a prepared coconut pad is placed on the top of the molecular sieve 6 and is tightly attached to the molecular sieve 6, the upper end cover sealing gas distribution assembly is pressed on the upper part of the coconut pad 4, the lower end cover 2 is a hollow cylinder, and 8 bolt through holes are uniformly designed in the edge part of the hollow cylinder and are used for being fixedly connected with the upper end cover 1; penetrating an adsorption tower cylinder 5 through the lower end cover 2, wherein the top surface of the adsorption tower cylinder 5 is flush with the top surface of the lower end cover 2; the upper end cover 1 and the lower end cover 2 are fixedly connected through the double-end stud to construct a small-sized high-purity nitrogen-making adsorption tower gas-dividing compression sealing structure.
The technical scheme has the following beneficial effects: according to the invention, the coconut pad is adopted to replace a spring to realize compaction, and the 100-mesh steel wire mesh is used to replace the 20-mesh steel wire mesh, so that the molecular sieve powder and the granular substances can be effectively sieved; an O-shaped sealing groove is designed on a convex part in the middle of the bottom of the upper end cover, so that the sealing effect of the whole adsorption tower is ensured.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A small-size high-purity nitrogen adsorption tower which characterized in that:
the adsorption tower comprises an upper end cover, a lower end cover, a pattern plate assembly, an adsorption tower cylinder and a coconut pad;
the upper end cover is arranged on the top of the pattern plate assembly;
the lower end cover is arranged at the bottom of the pattern plate assembly;
the upper end cover corresponds to the lower end cover in position;
the adsorption tower cylinder penetrates through the lower end cover, and the top surface of the adsorption tower cylinder is flush with the top surface of the lower end cover;
the coconut palm pad is placed adsorb tower barrel top.
2. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the method comprises the following steps: and the molecular sieve is an adsorbent, is filled in the adsorption tower cylinder body and is tightly attached to the coconut pad.
3. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the whole marginal portion of colored board subassembly evenly designed has a plurality of screw holes, be used for with upper end cover carries out fixed connection.
4. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the upper end cover is cylindrical, and a plurality of bolt through holes are uniformly designed on the edge part of the upper end cover and are used for being fixedly connected with the lower end cover;
the middle of the bottom surface of the upper end cover is provided with a plurality of screw holes corresponding to the pattern plate assembly;
a groove is formed in one side of the top of the upper end cover;
a pressure gauge air taking port is formed in the other side of the top of the upper end cover;
a first O-shaped sealing groove is designed in the middle of the middle protruding part at the bottom of the upper end cover.
5. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the lower end cover is a hollow cylinder, and a plurality of bolt through holes are uniformly designed on the edge part of the lower end cover and are used for being fixedly connected with the upper end cover;
and a second O-shaped sealing groove corresponding to the first O-shaped sealing groove is designed on the middle protruding part at the bottom of the lower end cover.
6. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the method comprises the following steps: m6, the M6 screw penetrates through the screw hole to fixedly connect the upper faceplate assembly and the upper end cover.
7. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the method comprises the following steps: and the O-shaped sealing ring is arranged in the O-shaped sealing groove of the upper end cover.
8. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the card assembly comprises: the upper and lower pattern plates are made of stainless steel net of 100 meshes;
the upper pattern plate and the lower pattern plate are both cylindrical structures;
the upper pattern plate and the lower pattern plate are vertically aligned according to the holes;
two layers of 100-mesh stainless steel nets are clamped between the upper pattern plate and the lower pattern plate, and one layer of 100-mesh stainless steel net is laid on the top of the upper pattern plate.
9. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the aperture of the 100-mesh stainless steel mesh is 0.165 mm.
10. The small-sized high purity nitrogen production adsorption tower according to claim 1, wherein:
the coconut pad is cylindrical, is positioned at the top of the molecular sieve and is used for compressing the pattern plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010549081.6A CN111729467A (en) | 2020-06-16 | 2020-06-16 | Small-size high-purity nitrogen adsorption tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010549081.6A CN111729467A (en) | 2020-06-16 | 2020-06-16 | Small-size high-purity nitrogen adsorption tower |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05219616A (en) * | 1992-02-04 | 1993-08-27 | Mitsubishi Electric Corp | Adsorbent fixing device |
| CN204768132U (en) * | 2015-07-06 | 2015-11-18 | 杭州盛尔气体设备有限公司 | Be used for protecting cylinder closing device of adsorbent in adsorption tower |
| CN205269250U (en) * | 2015-11-11 | 2016-06-01 | 天津贝特尔流体控制阀门有限公司 | Novel steam -water separation filter |
| CN205550225U (en) * | 2016-03-23 | 2016-09-07 | 河北昌骅专用汽车有限公司 | Closing means of molecular sieve and pressure vessel thereof |
| CN110102149A (en) * | 2019-05-18 | 2019-08-09 | 山西汾西重工有限责任公司 | Card structure and its method for machining and assembling are supported in major diameter N2 adsorption tower |
| CN210044988U (en) * | 2019-03-21 | 2020-02-11 | 南通虹登机械设备有限公司 | Medium-large-sized water filtering, heating and regenerating filter |
| CN212492238U (en) * | 2020-06-16 | 2021-02-09 | 山西汾西机电有限公司 | Small-size high-purity nitrogen adsorption tower |
-
2020
- 2020-06-16 CN CN202010549081.6A patent/CN111729467A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05219616A (en) * | 1992-02-04 | 1993-08-27 | Mitsubishi Electric Corp | Adsorbent fixing device |
| CN204768132U (en) * | 2015-07-06 | 2015-11-18 | 杭州盛尔气体设备有限公司 | Be used for protecting cylinder closing device of adsorbent in adsorption tower |
| CN205269250U (en) * | 2015-11-11 | 2016-06-01 | 天津贝特尔流体控制阀门有限公司 | Novel steam -water separation filter |
| CN205550225U (en) * | 2016-03-23 | 2016-09-07 | 河北昌骅专用汽车有限公司 | Closing means of molecular sieve and pressure vessel thereof |
| CN210044988U (en) * | 2019-03-21 | 2020-02-11 | 南通虹登机械设备有限公司 | Medium-large-sized water filtering, heating and regenerating filter |
| CN110102149A (en) * | 2019-05-18 | 2019-08-09 | 山西汾西重工有限责任公司 | Card structure and its method for machining and assembling are supported in major diameter N2 adsorption tower |
| CN212492238U (en) * | 2020-06-16 | 2021-02-09 | 山西汾西机电有限公司 | Small-size high-purity nitrogen adsorption tower |
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