CN109896134A - Molecular sieve packet - Google Patents
Molecular sieve packet Download PDFInfo
- Publication number
- CN109896134A CN109896134A CN201910265284.XA CN201910265284A CN109896134A CN 109896134 A CN109896134 A CN 109896134A CN 201910265284 A CN201910265284 A CN 201910265284A CN 109896134 A CN109896134 A CN 109896134A
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- packaging bag
- bag
- gas
- hermetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 56
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000004806 packaging method and process Methods 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 26
- 238000010943 off-gassing Methods 0.000 claims abstract description 15
- 230000035699 permeability Effects 0.000 claims abstract description 10
- 239000011261 inert gas Substances 0.000 claims abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000000356 contaminant Substances 0.000 abstract description 5
- 239000011229 interlayer Substances 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses molecular sieve packets, comprising: molecular sieve, molecular sieve are packaged in packaging bag, and outgassing rate of the packaging bag at 0~25 DEG C of room temperature should be not more than 8.00E-07Pa.m3/ (s.g)；Gas permeability of the packaging bag at pressure difference 200Pa should be 1000~4000L/(m2.s)；Packaging bag equipped with molecular sieve is packaged in hermetic bag, and inert gas is vacuumized or be filled in hermetic bag.Hermetic bag can completely cut off air to above-mentioned molecular sieve packet when not in use, so that molecular sieve can not be adsorbed onto gas, ensure the absorption property of molecular sieve；Molecular sieve packet using when need to tear peel seal bag, then being placed directly in interlayer with packaging bag by molecular sieve, when tearing hermetic bag, due to there is the protection of packaging bag, so that molecular sieve will not be directly exposed in air；Simultaneously because packaging bag has the characteristic of low outgassing rate, highly-breathable, excessive gas breaks vacuum will not be generated when using in vacuum environment, the effect of adsorbing contaminant gas under vacuum will not be reduced because of the isolation of packaging bag.
Description
Technical field
The present invention relates to vacuum cryogenic insulating field of containers, and in particular to one kind is for the adsorbing contaminant in high vacuum environment
Gas is to maintain the molecular sieve packet of vacuum.
Background technique
Vacuum cryogenic insulating container is generally double-layer structure, and internal layer stores cryogenic media, and outer layer is contacted with environment, ectonexine
Between interlayer space be vacuum environment heat insulation layer, container will realize the performance of superinsulation, maintain the vacuum of interlayer space
Environment is most important.
Molecular sieve is the solid of porous structure, and all kinds of gas molecules in its internal aperture can be less than with quick adsorption, are used for
Adsorbed gas is in high vacuum environment to maintain vacuum.
For molecular sieve usually using sealing bucket as packed and transported means, when use, needs to remove bung at present, then takes
Required molecular sieve, remaining molecular sieve will be directly exposed to air in sealing bucket in this way, since the absorption of molecular sieve is imitated
Rate is high, and exposure can make molecular sieve adsorb bulk gas molecule in a very short period of time until adsorption saturation in air.
The molecular sieve of adsorption saturation can occur that phenomenon is desorbed in vacuum cryogenic insulating container vacuum-pumping, that is, be adsorbed on inside
Gas molecule under vacuum and hot environment again slowly be precipitated, it is timely that this phenomenon considerably increases the difficulty vacuumized
Between, increase energy consumption.20% or more molecular sieve adsorption ability decline completely after desorption.And halfway molecular sieve is desorbed and will appear
It deflates under vacuum environment the case where being greater than air-breathing, to occur that high vacuum environment, the high vacuum that even accelerates the failure ring cannot be maintained
The case where border.
Summary of the invention
The technical problems to be solved by the present invention are: will provide it is a kind of can keep well molecular sieve absorption property so as to
The molecular sieve packet of the fine adsorbing contaminant gas of energy in high vacuum environment.
To solve the above-mentioned problems, the technical scheme adopted by the invention is as follows: molecular sieve packet, comprising: molecular sieve, feature
Be: molecular sieve is packaged in the packaging bag with low outgassing rate and highly-breathable, packaging bag putting at 0~25 DEG C of room temperature
Gas velocity rate should be not more than 8.00E-07Pa.m3/ (s.g)；Gas permeability of the packaging bag at pressure difference 200Pa should be 1000~4000L/
(m2.s)；Packaging bag equipped with molecular sieve is packaged in hermetic bag, and inert gas is vacuumized or be filled in hermetic bag.
Further, molecular sieve packet above-mentioned, in which: gas permeability of the hermetic bag at pressure difference 200Pa should be less than 1L/
(m2.s).
Further, molecular sieve packet above-mentioned, in which: vacuumized in hermetic bag.
Further, molecular sieve packet above-mentioned, in which: outgassing rate of the packaging bag at 120 DEG C should be not more than 4.00E-
06Pa.m3/ (s.g).
Advantages of the present invention are as follows: hermetic bag can completely cut off air to molecular sieve packet of the present invention when not in use, make score
Son sieve can not be adsorbed onto gas, ensure the absorption property of molecular sieve；Molecular sieve packet using when need to tear peel seal bag, so
Being placed directly in interlayer with packaging bag by molecular sieve afterwards, when tearing hermetic bag, due to there is the protection of packaging bag, so that molecule
Sieve will not be directly exposed in air, to ensure that the absorption property of molecular sieve；Simultaneously because packaging bag have low outgassing rate,
The characteristic of highly-breathable will not generate excessive gas breaks vacuum when using in vacuum environment, will not be because of packaging bag
Isolation reduce vacuum under adsorbing contaminant gas effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of molecular sieve packet of the present invention.
Specific embodiment
The present invention is described in further detail with attached drawing combined with specific embodiments below.
As shown in Figure 1, molecular sieve packet, comprising: molecular sieve 1, molecular sieve 1 are packaged in low outgassing rate and highly-breathable
Packaging bag 2 in, outgassing rate of the packaging bag 2 at 0~25 DEG C of room temperature should be not more than 8.00E-07Pa.m3/ (s.g), packaging
Outgassing rate of the bag at 120 DEG C should be not more than 4.00E-06Pa.m3The examination criteria of/(s.g), outgassing rate are used for deep
The GBT31480 of cold containers high vacuum multiple layer heat insulation material, the outgassing rate of packaging bag 2 is excessive to will result in material outgassing mistake
Greatly, it is unfavorable for the maintenance of vacuum in this way；Gas permeability of the packaging bag 2 at pressure difference 200Pa should be 1000~4000L/(m2.s), packet
The gas permeability of pack 2, which crosses conference, to carry out effective protection to molecular sieve, and the gas permeability of packaging bag 2 is too small will cause under vacuum
Molecular sieve adsorption rate is too small, is unfavorable for the maintenance of vacuum；Packaging bag is existing to be customized according to the parameter of offer；
Packaging bag 2 equipped with molecular sieve 1 is packaged in hermetic bag 3, vacuumizes or be filled with inert gas, the present embodiment in hermetic bag 3
In, it is vacuumized in hermetic bag 3, in actual production, hermetic bag 3 can also be filled with nitrogen.In the present embodiment, hermetic bag is in pressure difference
Gas permeability under 200Pa should be less than 1L/(m2.s), the gas permeability of hermetic bag is the smaller the better.
Hermetic bag can completely cut off air to molecular sieve packet when not in use, so that molecular sieve can not be adsorbed onto gas, ensure point
The absorption property of son sieve；Molecular sieve packet using when need to tear peel seal bag, then by molecular sieve with packaging bag directly putting
It is placed in interlayer, when tearing hermetic bag, due to there is the protection of packaging bag, so that molecular sieve will not be directly exposed in air, from
And it ensure that the absorption property of molecular sieve；Simultaneously because packaging bag has the characteristic of low outgassing rate, highly-breathable, in vacuum environment
Excessive gas breaks vacuum will not be generated when middle use, will not reduce adsorbing contaminant gas under vacuum because of the isolation of packaging bag
The effect of body.
Claims (4)
1. molecular sieve packet, comprising: molecular sieve, it is characterised in that: molecular sieve is packaged in low outgassing rate and highly-breathable
In packaging bag, outgassing rate of the packaging bag at 0~25 DEG C of room temperature should be not more than 8.00E-07Pa.m3/ (s.g)；Packaging bag exists
Gas permeability under pressure difference 200Pa should be 1000~4000L/(m2.s)；Packaging bag equipped with molecular sieve is packaged in hermetic bag, close
Inert gas is vacuumized or is filled in envelope.
2. molecular sieve packet according to claim 1, it is characterised in that: gas permeability of the hermetic bag at pressure difference 200Pa is answered small
In 1L/(m2.s).
3. molecular sieve packet according to claim 1 or 2, it is characterised in that: vacuumized in hermetic bag.
4. molecular sieve packet according to claim 1 or 2, it is characterised in that: outgassing rate of the packaging bag at 120 DEG C should not
Greater than 4.00E-06Pa.m3/ (s.g).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265284.XA CN109896134A (en) | 2019-04-03 | 2019-04-03 | Molecular sieve packet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265284.XA CN109896134A (en) | 2019-04-03 | 2019-04-03 | Molecular sieve packet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109896134A true CN109896134A (en) | 2019-06-18 |
Family
ID=66955265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910265284.XA Pending CN109896134A (en) | 2019-04-03 | 2019-04-03 | Molecular sieve packet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109896134A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439472A (en) * | 2020-03-26 | 2020-07-24 | 河北迪纳兴科生物科技有限公司 | Molecular sieve package and preparation method and application thereof |
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| US6000198A (en) * | 1998-04-07 | 1999-12-14 | Calgon Carbon Corporation | Method and package for packaging contents at reduced pressures |
| CN1279627A (en) * | 1997-11-18 | 2001-01-10 | 普拉塞尔技术有限公司 | Thermally powered oxygen/nitrogen plant incorporating an oxygen selective ion transport membrane |
| CN2736281Y (en) * | 2004-06-14 | 2005-10-26 | 刘港平 | Vacuum sealing bag |
| CN101023291A (en) * | 2004-07-20 | 2007-08-22 | 仓敷纺绩株式会社 | Vacuum heat insulation material |
| CN201296459Y (en) * | 2008-07-21 | 2009-08-26 | 南京泽朗医药科技有限公司 | Vacuumized packaging bag with anti-oxidation function |
| CN101659336A (en) * | 2009-08-07 | 2010-03-03 | 昆山维信诺显示技术有限公司 | Product packaging and packaging method thereof |
| CN102084236A (en) * | 2008-07-01 | 2011-06-01 | 普莱克斯技术有限公司 | Method and kit for adsorbent performance evaluation |
| CN202295776U (en) * | 2011-10-26 | 2012-07-04 | 东莞市明天纳米科技有限公司 | Activated carbon packaging bag |
| CN103949204A (en) * | 2014-04-16 | 2014-07-30 | 太原理工大学 | Preparation method of multistage pore passage composite molecular sieve adsorbent |
| CN206358573U (en) * | 2016-11-25 | 2017-07-28 | 上海恒业分子筛股份有限公司 | A kind of zeolite product packaging bag |
| CN206911065U (en) * | 2017-07-05 | 2018-01-23 | 江西制氧机有限公司 | A kind of silver-colored molecular sieve adsorption device of vacuum insulation vessel |
| CN210102405U (en) * | 2019-04-03 | 2020-02-21 | 张家港富瑞特种装备股份有限公司 | Molecular sieve package |
-
2019
- 2019-04-03 CN CN201910265284.XA patent/CN109896134A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279627A (en) * | 1997-11-18 | 2001-01-10 | 普拉塞尔技术有限公司 | Thermally powered oxygen/nitrogen plant incorporating an oxygen selective ion transport membrane |
| US6000198A (en) * | 1998-04-07 | 1999-12-14 | Calgon Carbon Corporation | Method and package for packaging contents at reduced pressures |
| CN2736281Y (en) * | 2004-06-14 | 2005-10-26 | 刘港平 | Vacuum sealing bag |
| CN101023291A (en) * | 2004-07-20 | 2007-08-22 | 仓敷纺绩株式会社 | Vacuum heat insulation material |
| CN102084236A (en) * | 2008-07-01 | 2011-06-01 | 普莱克斯技术有限公司 | Method and kit for adsorbent performance evaluation |
| CN201296459Y (en) * | 2008-07-21 | 2009-08-26 | 南京泽朗医药科技有限公司 | Vacuumized packaging bag with anti-oxidation function |
| CN101659336A (en) * | 2009-08-07 | 2010-03-03 | 昆山维信诺显示技术有限公司 | Product packaging and packaging method thereof |
| CN202295776U (en) * | 2011-10-26 | 2012-07-04 | 东莞市明天纳米科技有限公司 | Activated carbon packaging bag |
| CN103949204A (en) * | 2014-04-16 | 2014-07-30 | 太原理工大学 | Preparation method of multistage pore passage composite molecular sieve adsorbent |
| CN206358573U (en) * | 2016-11-25 | 2017-07-28 | 上海恒业分子筛股份有限公司 | A kind of zeolite product packaging bag |
| CN206911065U (en) * | 2017-07-05 | 2018-01-23 | 江西制氧机有限公司 | A kind of silver-colored molecular sieve adsorption device of vacuum insulation vessel |
| CN210102405U (en) * | 2019-04-03 | 2020-02-21 | 张家港富瑞特种装备股份有限公司 | Molecular sieve package |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439472A (en) * | 2020-03-26 | 2020-07-24 | 河北迪纳兴科生物科技有限公司 | Molecular sieve package and preparation method and application thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |