CN111271597A - Oxygen filling method - Google Patents
Oxygen filling method Download PDFInfo
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- CN111271597A CN111271597A CN201911344365.5A CN201911344365A CN111271597A CN 111271597 A CN111271597 A CN 111271597A CN 201911344365 A CN201911344365 A CN 201911344365A CN 111271597 A CN111271597 A CN 111271597A
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- Prior art keywords
- oxygen
- filling
- air
- cylinder
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- 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
- C01B2210/0043—Impurity removed
- C01B2210/0051—Carbon dioxide
-
- 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
- C01B2210/0043—Impurity removed
- C01B2210/0062—Water
-
- 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
- C01B2210/0043—Impurity removed
- C01B2210/0068—Organic compounds
- C01B2210/007—Hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/011—Oxygen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the technical field of oxygen filling, in particular to an oxygen filling method. The method comprises the following steps: the method comprises the steps of adopting an air fractionation method, filtering, compressing, cooling and oil-water separating raw air, removing impurities for the first time to obtain compressed air, introducing one part of the processed compressed air into an expander to generate cold energy, introducing the other part of the processed compressed air into a fractionating tower, and rectifying for multiple times to obtain high-purity oxygen; removing impurities for the second time, and introducing the impurities into an oxygen storage tank for storage; degreasing the oxygen cylinder, checking the air tightness, then vacuumizing, and then cooling; the oxygen is extracted through the oxygen compressor, the compressed oxygen is sent to the filling device, filling is carried out at normal temperature and normal pressure, during filling, a pressure gauge on the oxygen bottle is observed, and filling of the oxygen is carried out at a constant speed until filling is completed. The invention solves the problem that safety accidents are easy to happen during oxygen filling, improves the safety of oxygen filling and ensures the safety of workers.
Description
Technical Field
The invention relates to the technical field of oxygen filling, in particular to an oxygen filling method.
Background
The oxygen cylinder is a high-pressure container for storing and transporting oxygen, and is generally formed by hot punching and pressing alloy structural steel. The oxygen cylinder is ideal oxygen supply equipment for hospitals, emergency stations, nursing homes, home care, battlefield rescue, personal health care and various oxygen-deficient environments, and is an indispensable friend for patients, old people, pregnant women, students, white-collar workers, tourism, underground tunnels and mountaineers.
However, in the process of oxygen production and filling, because oxygen has a strong combustion-supporting effect, combustion can be rapidly supported when meeting fire sources, for example, in oxygen conveying pipelines, impurities such as iron embroidery, welding slag, powder and the like are in friction collision with the inner wall of the pipeline or accessories, sparks and high temperature are easily generated to cause combustion, and the danger of the impurities is directly related to the types, the granularity and the oxygen flow rate of the impurities. When oxygen is produced, operated and repaired, oil stains are brought in, and the oxygen is extremely easy to ignite and burn when being contacted with high-pressure high-content oxygen, so that fire and explosion accidents are caused. Therefore, how to ensure the safety of the operating personnel when filling oxygen is worth thinking and considering.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a safe and feasible oxygen filling method to improve the production safety factor of enterprises and ensure the safety of workers.
In order to solve the technical problems, the technical scheme of the invention is as follows: a method for filling oxygen comprises the following steps:
s1, preparing oxygen: adopting an air fractionation method, filtering, compressing, cooling and oil-water separating raw material air, removing impurities for the first time to obtain compressed air, introducing one part of the processed compressed air into an expander to generate cold energy, introducing the other part of the processed compressed air into a fractionating tower, and rectifying for multiple times to obtain high-purity oxygen;
s2, removing impurities for the second time: after impurities of the high-purity oxygen are removed for the second time, introducing the high-purity oxygen into an oxygen storage tank for storage;
s3, preparation before filling: selecting an oxygen cylinder, performing degreasing treatment on the oxygen cylinder, then checking the air tightness of the oxygen cylinder, then performing vacuumizing treatment on the oxygen cylinder, and performing cooling treatment after the vacuumizing treatment;
s4, oxygen filling: extracting oxygen from the oxygen storage tank through an oxygen compressor, compressing the oxygen, conveying the compressed oxygen to a filling device, filling at normal temperature and normal pressure, observing a pressure gauge on an oxygen cylinder during filling, observing the pressure displayed on the pressure gauge, and filling the oxygen at a constant speed until the filling is finished.
Preferably, the first impurity removal and the second impurity removal are performed by adsorbing moisture, carbon dioxide and acetylene by a molecular sieve adsorber.
Preferably, the degreasing treatment is to remove oil stains on the surface of the oxygen bottle by pouring a metal cleaning agent into a water tank of an ultrasonic cleaning machine by using the ultrasonic cleaning machine.
Preferably, the metal cleaning agent comprises 1-5 parts of defoaming agent, 1-10 parts of lauryl trimethyl ammonium chloride, 2-5 parts of sulfonated fatty acid ester, 1-2 parts of alkyl polyglycoside, and sodium phosphate: 20-30 parts of sodium silicate, 40-60 parts of sodium silicate, 1-3 parts of corrosion inhibitor and the balance of deionized water.
Preferably, the vacuum-pumping process is to pump air out of the oxygen cylinder by a vacuum-pumping device to make the oxygen cylinder in a vacuum state.
Preferably, the temperature reduction treatment is carried out by cold water.
Preferably, the oxygen storage tank is a float-type oxygen storage tank.
Compared with the prior art, the invention has the beneficial effects that:
according to the oxygen filling method, the oxygen bottle is subjected to degreasing treatment before filling, and then is subjected to cooling treatment after degreasing treatment, so that unsafe filling can not be caused by strong combustion-supporting property of oxygen during oxygen filling, and meanwhile, the oxygen filling device is adopted for uniform filling, so that the danger of oxygen bottle explosion caused by overhigh pressure of the oxygen bottle due to rapid increase of the oxygen in the oxygen bottle is avoided.
Detailed Description
Here, the description of the embodiments is provided to help understand the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1: a method for filling oxygen comprises the following steps:
s1, preparing oxygen: the method comprises the steps of adopting an air fractionation method, filtering, compressing, cooling and oil-water separating raw air, removing impurities for the first time, adsorbing moisture, carbon dioxide and acetylene through a molecular sieve adsorber to obtain compressed air, introducing one part of the processed compressed air into an expander to generate cold energy, introducing the other part of the processed compressed air into a fractionating tower, and obtaining high-purity oxygen after multiple times of rectification;
s2, removing impurities for the second time: removing impurities of the high-purity oxygen for the second time, namely adsorbing moisture, carbon dioxide and acetylene by a molecular sieve adsorber, and introducing the oxygen into an oxygen storage tank for storage;
s3, preparation before filling: selecting an oxygen cylinder, and performing degreasing treatment on the oxygen cylinder, wherein the degreasing treatment is to pour a metal cleaning agent into a water tank of an ultrasonic cleaning machine by using the ultrasonic cleaning machine to remove oil stains on the surface of the oxygen cylinder. The metal cleaning agent comprises an antifoaming agent 1, lauryl trimethyl ammonium chloride 5, sulfonated fatty acid ester 2, alkyl polyglycoside 1 and sodium phosphate: 20. sodium silicate 40, corrosion inhibitor 1 and the balance of deionized water. The oxygen cylinder cleaned by the metal cleaning agent can thoroughly remove oil stains and dirt on the oxygen cylinder, so that the safety of oxygen filling is improved, then the air tightness of the oxygen cylinder is checked, then the oxygen cylinder is vacuumized, air in the oxygen cylinder is pumped out through a vacuumizing device, the oxygen cylinder is in a vacuum state, and then the oxygen cylinder is cooled by cold water after being vacuumized;
s4, oxygen filling: the oxygen is extracted from the oxygen storage tank through the oxygen compressor, the oxygen is compressed and then sent to the filling device, filling is carried out at normal temperature and normal pressure, during filling, a pressure gauge on the oxygen cylinder is observed, the numerical value display of the pressure gauge can be determined according to the national standard, the pressure generally does not exceed the pressure range of the national standard, the pressure displayed on the pressure gauge is observed, and the filling of the oxygen is carried out at a constant speed until the filling is completed.
Example 2: a method for filling oxygen comprises the following steps:
s1, preparing oxygen: the method comprises the steps of adopting an air fractionation method, filtering, compressing, cooling and oil-water separating raw air, removing impurities for the first time, adsorbing moisture, carbon dioxide and acetylene through a molecular sieve adsorber to obtain compressed air, introducing one part of the processed compressed air into an expander to generate cold energy, introducing the other part of the processed compressed air into a fractionating tower, and obtaining high-purity oxygen after multiple times of rectification;
s2, removing impurities for the second time: removing impurities of the high-purity oxygen for the second time, namely adsorbing moisture, carbon dioxide and acetylene by a molecular sieve adsorber, and introducing the oxygen into an oxygen storage tank for storage;
s3, preparation before filling: selecting an oxygen cylinder, and performing degreasing treatment on the oxygen cylinder, wherein the degreasing treatment is to pour a metal cleaning agent into a water tank of an ultrasonic cleaning machine by using the ultrasonic cleaning machine to remove oil stains on the surface of the oxygen cylinder. The metal cleaning agent comprises an antifoaming agent 2, lauryl trimethyl ammonium chloride 5, sulfonated fatty acid ester 3, alkyl polyglycoside 1.5 and sodium phosphate: 25. 50 parts of sodium silicate, 2 parts of corrosion inhibitor and the balance of deionized water. The oxygen cylinder cleaned by the metal cleaning agent can thoroughly remove oil stains and dirt on the oxygen cylinder, so that the safety of oxygen filling is improved, then the air tightness of the oxygen cylinder is checked, then the oxygen cylinder is vacuumized, air in the oxygen cylinder is pumped out through a vacuumizing device, the oxygen cylinder is in a vacuum state, and then the oxygen cylinder is cooled by cold water after being vacuumized;
s4, oxygen filling: the oxygen is extracted from the oxygen storage tank through the oxygen compressor, the oxygen is compressed and then sent to the filling device, filling is carried out at normal temperature and normal pressure, during filling, a pressure gauge on the oxygen cylinder is observed, the numerical value display of the pressure gauge can be determined according to the national standard, the pressure generally does not exceed the pressure range of the national standard, the pressure displayed on the pressure gauge is observed, and the filling of the oxygen is carried out at a constant speed until the filling is completed.
Example 3: a method for filling oxygen comprises the following steps:
s1, preparing oxygen: the method comprises the steps of adopting an air fractionation method, filtering, compressing, cooling and oil-water separating raw air, removing impurities for the first time, adsorbing moisture, carbon dioxide and acetylene through a molecular sieve adsorber to obtain compressed air, introducing one part of the processed compressed air into an expander to generate cold energy, introducing the other part of the processed compressed air into a fractionating tower, and obtaining high-purity oxygen after multiple times of rectification;
s2, removing impurities for the second time: removing impurities of the high-purity oxygen for the second time, namely adsorbing moisture, carbon dioxide and acetylene by a molecular sieve adsorber, and introducing the oxygen into an oxygen storage tank for storage;
s3, preparation before filling: selecting an oxygen cylinder, and performing degreasing treatment on the oxygen cylinder, wherein the degreasing treatment is to pour a metal cleaning agent into a water tank of an ultrasonic cleaning machine by using the ultrasonic cleaning machine to remove oil stains on the surface of the oxygen cylinder. The metal cleaning agent comprises an antifoaming agent 5, lauryl trimethyl ammonium chloride 10, sulfonated fatty acid ester 5, alkyl polyglycoside 2 and sodium phosphate: 30. 60 parts of sodium silicate, 3 parts of corrosion inhibitor and the balance of deionized water. The oxygen cylinder cleaned by the metal cleaning agent can thoroughly remove oil stains and dirt on the oxygen cylinder, so that the safety of oxygen filling is improved, then the air tightness of the oxygen cylinder is checked, then the oxygen cylinder is vacuumized, air in the oxygen cylinder is pumped out through a vacuumizing device, the oxygen cylinder is in a vacuum state, and then the oxygen cylinder is cooled by cold water after being vacuumized;
s4, oxygen filling: the oxygen is extracted from the oxygen storage tank through the oxygen compressor, the oxygen is compressed and then sent to the filling device, filling is carried out at normal temperature and normal pressure, during filling, a pressure gauge on the oxygen cylinder is observed, the numerical value display of the pressure gauge can be determined according to the national standard, the pressure generally does not exceed the pressure range of the national standard, the pressure displayed on the pressure gauge is observed, and the filling of the oxygen is carried out at a constant speed until the filling is completed.
Through the 3 embodiments, the filling method can be used for performing degreasing treatment on the oxygen cylinder before filling, and performing cooling treatment after degreasing treatment, so that the filling is not unsafe due to strong combustion-supporting property of oxygen during oxygen filling, and meanwhile, the filling device is used for performing uniform filling, so that the danger of oxygen cylinder explosion caused by too high pressure of the oxygen cylinder due to rapid increase of oxygen in the oxygen cylinder is avoided. The invention solves the problem that safety accidents are easy to happen during oxygen filling, improves the safety of oxygen filling and ensures the safety of workers.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (7)
1. A method for filling oxygen, which is characterized by comprising the following steps:
s1, preparing oxygen: the method comprises the steps of adopting an air fractionation method, filtering, compressing, cooling and oil-water separating raw air, removing impurities for the first time to obtain compressed air, introducing one part of the processed compressed air into an expander to generate cold energy, introducing the other part of the processed compressed air into a fractionating tower, and rectifying for multiple times to obtain high-purity oxygen;
s2, removing impurities for the second time: after impurities of the high-purity oxygen are removed for the second time, the high-purity oxygen is introduced into an oxygen storage tank for storage;
s3, preparation before filling: selecting an oxygen cylinder, performing degreasing treatment on the oxygen cylinder, then checking the air tightness of the oxygen cylinder, then performing vacuumizing treatment on the oxygen cylinder, and performing cooling treatment after the vacuumizing treatment;
s4, oxygen filling: extracting oxygen from the oxygen storage tank through an oxygen compressor, compressing the oxygen, conveying the compressed oxygen to a filling device, filling at normal temperature and normal pressure, observing a pressure gauge on an oxygen cylinder during filling, observing the pressure displayed on the pressure gauge, and filling the oxygen at a constant speed until the filling is finished.
2. The oxygen filling method according to claim 1, wherein: and the first impurity removal and the second impurity removal are realized by adsorbing moisture, carbon dioxide and acetylene through a molecular sieve adsorber.
3. The oxygen filling method according to claim 1, wherein: the degreasing treatment is to remove oil stains on the surface of the oxygen bottle by pouring a metal cleaning agent into a water tank of an ultrasonic cleaning machine by using the ultrasonic cleaning machine.
4. The oxygen filling method according to claim 3, wherein: the metal cleaning agent comprises 1-5 parts of defoaming agent, 1-10 parts of lauryl trimethyl ammonium chloride, 2-5 parts of sulfonated fatty acid ester, 1-2 parts of alkyl polyglycoside and sodium phosphate: 20-30 parts of sodium silicate, 40-60 parts of sodium silicate, 1-3 parts of corrosion inhibitor and the balance of deionized water.
5. The oxygen filling method according to claim 1, wherein: the vacuum-pumping treatment is to pump out the air in the oxygen cylinder through a vacuum-pumping device so as to ensure that the oxygen cylinder is in a vacuum state.
6. The oxygen filling method according to claim 1, wherein: the temperature reduction treatment is to reduce the temperature through cold water.
7. The oxygen filling method according to claim 1, wherein: the oxygen storage tank is a float-type oxygen storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344365.5A CN111271597A (en) | 2019-12-24 | 2019-12-24 | Oxygen filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344365.5A CN111271597A (en) | 2019-12-24 | 2019-12-24 | Oxygen filling method |
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| Publication Number | Publication Date |
|---|---|
| CN111271597A true CN111271597A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911344365.5A Pending CN111271597A (en) | 2019-12-24 | 2019-12-24 | Oxygen filling method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0223946A2 (en) * | 1985-10-31 | 1987-06-03 | Rothenberger Werkzeuge-Maschinen Gmbh | Oxygen producer comprising a high-pressure container and a cartridge support for combustible-oxygen cartridges |
| US5865877A (en) * | 1995-08-22 | 1999-02-02 | Undersea Breathing Systems, Inc. | Method and apparatus for supplying a pressurized diver's breathing gas for underwater divers |
| CN102494515A (en) * | 2011-12-05 | 2012-06-13 | 无锡威克亨盛机械制造有限公司 | Process for preparing high-pressure medical oxygen |
| CN106567991A (en) * | 2016-08-24 | 2017-04-19 | 林德艾润（西安）生命科学有限公司 | Automatic portable oxygen tank filling production line |
-
2019
- 2019-12-24 CN CN201911344365.5A patent/CN111271597A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0223946A2 (en) * | 1985-10-31 | 1987-06-03 | Rothenberger Werkzeuge-Maschinen Gmbh | Oxygen producer comprising a high-pressure container and a cartridge support for combustible-oxygen cartridges |
| US5865877A (en) * | 1995-08-22 | 1999-02-02 | Undersea Breathing Systems, Inc. | Method and apparatus for supplying a pressurized diver's breathing gas for underwater divers |
| CN102494515A (en) * | 2011-12-05 | 2012-06-13 | 无锡威克亨盛机械制造有限公司 | Process for preparing high-pressure medical oxygen |
| CN106567991A (en) * | 2016-08-24 | 2017-04-19 | 林德艾润（西安）生命科学有限公司 | Automatic portable oxygen tank filling production line |
Non-Patent Citations (3)
| Title |
|---|
| 张新建: "《气体充装安全技术》", 30 November 2003 * |
| 邱娟 等: "基于制氧站的安全评价分析", 《山西化工》 * |
| 金成刚 等: "风险管理在瓶装气体安全生产中的应用", 《深冷技术》 * |
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Application publication date: 20200612 |
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