CN112525433A - Production method for detecting hydrogen sulfide gas steel cylinder in real time - Google Patents
Production method for detecting hydrogen sulfide gas steel cylinder in real time Download PDFInfo
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- CN112525433A CN112525433A CN202011465664.7A CN202011465664A CN112525433A CN 112525433 A CN112525433 A CN 112525433A CN 202011465664 A CN202011465664 A CN 202011465664A CN 112525433 A CN112525433 A CN 112525433A
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- hydrogen sulfide
- sulfide gas
- steel cylinder
- real time
- detecting
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- 239000007789 gas Substances 0.000 title claims abstract description 62
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 21
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052709 silver Inorganic materials 0.000 claims abstract description 17
- 239000004332 silver Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000004593 Epoxy Substances 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
- 238000000967 suction filtration Methods 0.000 claims abstract description 7
- 230000001680 brushing effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 3
- 230000035807 sensation Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/146—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a production method of a steel cylinder for detecting hydrogen sulfide gas in real time, which comprises the steps of preparing hydrogen sulfide gas detection slurry, dispersing sulfonated cellulose fibers in deionized water, stirring continuously, then dropwise adding a silver nitrate solution, reacting at room temperature for 1-5 hours, carrying out suction filtration, and drying at room temperature to obtain silver-loaded sulfonated cellulose fibers; step two: adding the silver-loaded sulfonated cellulose fiber obtained in the step one into epoxy water-based resin, and mechanically stirring for 10-24 hours to obtain hydrogen sulfide gas detection slurry; step three; and (3) applying the hydrogen sulfide gas detection slurry obtained in the step two to the whole steel cylinder, and drying at 60-150 ℃ for 2-20 min to obtain the gas steel cylinder capable of detecting hydrogen sulfide in real time. The preparation method has the advantages of low price, convenient use and rapid and quick detection. Compared with a method depending on olfactory detection, the method has lower detection limit, and realizes the purpose of detecting the hydrogen sulfide gas at the same time of olfactory sensation and vision.
Description
Technical Field
The invention belongs to the field of gas steel cylinder detection, and particularly relates to a production method for detecting a hydrogen sulfide gas steel cylinder in real time.
Background
Hydrogen sulfide gas is a common colorless gas with a smelly egg smell. When the concentration of the hydrogen sulfide gas in the air is low, the hydrogen sulfide gas can be harmful to the respiratory system of people, and when the concentration of the hydrogen sulfide gas is high, the people can die in a short time, so that the detection of the hydrogen sulfide gas is also very important. If the steel cylinder filled with the hydrogen sulfide gas leaks, the large-flow leakage can be explosive, the small-flow leakage can be detected through smell, but the trace leakage is not easy to detect.
At present, the safety of the gas cylinder is always a concern, and for the gas cylinder, a visual inspection method is generally adopted for detecting whether the gas cylinder is damaged or cracked, and then an auditory test or a foam test can be used for detecting whether the gas cylinder is opened or closed. But traces are not readily noticeable, particularly traces that leak during use. Therefore, it is very important to invent a steel cylinder for detecting the leakage of hydrogen sulfide gas in real time.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a production method for detecting a hydrogen sulfide gas steel cylinder in real time, so that the leakage of hydrogen sulfide gas can be reduced, and the detection can be carried out in real time.
In order to achieve the purpose, the invention adopts the technical scheme that: a production method for detecting a hydrogen sulfide gas steel cylinder in real time comprises the following steps;
the method comprises the following steps: firstly, preparing hydrogen sulfide gas detection slurry, dispersing sulfonated cellulose fibers in deionized water, continuously stirring, then dropwise adding a silver nitrate solution, reacting at room temperature for 1-5 hours, performing suction filtration, and drying at room temperature to obtain silver-loaded sulfonated cellulose fibers;
step two: adding the silver-loaded sulfonated cellulose fiber obtained in the step one into epoxy water-based resin, and mechanically stirring for 10-24 hours to obtain hydrogen sulfide gas detection slurry;
step three; and (3) applying the hydrogen sulfide gas detection slurry obtained in the step two to the whole steel cylinder, and drying at 60-150 ℃ for 2-20 min to obtain the gas steel cylinder capable of detecting hydrogen sulfide in real time.
Further, the concentration of the silver nitrate solution in the first step is 1-50 g/L.
Further, the dosage of the silver-loaded sulfonated cellulose fiber in the second step accounts for 1-5% of the epoxy water-based resin.
Further, the hydrogen-hydride gas detection slurry in the third step is applied to the whole steel cylinder in one of spraying, brushing, dipping and printing.
The invention has the beneficial effects that: the method has the advantages of low price, convenient use and rapid and quick detection. Compared with a method depending on olfactory detection, the method has lower detection limit, and realizes the purpose of detecting the hydrogen sulfide gas at the same time of olfactory sensation and vision.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by examples below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
A production method for detecting a hydrogen sulfide gas steel cylinder in real time comprises the following steps;
the method comprises the following steps: firstly, preparing hydrogen sulfide gas detection slurry, dispersing sulfonated cellulose fibers in deionized water, continuously stirring, then dropwise adding a silver nitrate solution, reacting at room temperature for 1-5 hours, performing suction filtration, and drying at room temperature to obtain silver-loaded sulfonated cellulose fibers;
step two: adding the silver-loaded sulfonated cellulose fiber obtained in the step one into epoxy water-based resin, and mechanically stirring for 10-24 hours to obtain hydrogen sulfide gas detection slurry;
step three; and (3) applying the hydrogen sulfide gas detection slurry obtained in the step two to the whole steel cylinder, and drying at 60-150 ℃ for 2-20 min to obtain the gas steel cylinder capable of detecting hydrogen sulfide in real time.
In the embodiment, the concentration of the silver nitrate solution in the first step is preferably 1 to 50 g/L.
In this embodiment, the amount of the silver-loaded sulfonated cellulose fiber used in the second step is preferably 1% to 5% of the epoxy aqueous resin.
In the preferred embodiment, the hydrogen-hydride gas detection slurry is applied to the entire cylinder in step three by one of spraying, brushing, dipping and printing.
The invention can be referred to the following three examples:
the first embodiment is as follows:
dispersing 10 g of sulfonated cellulose fiber in 400 mL of deionized water under the stirring effect, dropwise adding 100 mL (50 g/L) of silver nitrate solution, reacting at room temperature for 1-5 h, performing suction filtration, drying at room temperature to obtain silver-loaded sulfonated cellulose fiber, adding 10 g of silver-loaded sulfonated cellulose fiber to 1L of epoxy water-based resin, and mechanically stirring for 10-24 h to obtain hydrogen sulfide gas detection slurry. Spraying the hydrogen sulfide gas detection slurry on the whole steel cylinder, and drying at 150 ℃ for 5 min to obtain the steel cylinder capable of detecting the leakage of the hydrogen sulfide gas in real time.
Example two:
dispersing 20 g of sulfonated cellulose fiber into 300 mL of deionized water under the stirring effect, dropwise adding 200 mL (30 g/L) of silver nitrate solution, reacting at room temperature for 1-5 h, performing suction filtration, drying at room temperature to obtain silver-loaded sulfonated cellulose fiber, adding 20 g of silver-loaded sulfonated cellulose fiber into 1L of epoxy water-based resin, and mechanically stirring for 10-24 h to obtain hydrogen sulfide gas detection slurry. And (3) brushing the hydrogen sulfide gas detection slurry on the whole steel cylinder, and drying at 120 ℃ for 10 min to obtain the steel cylinder capable of detecting the leakage of the hydrogen sulfide gas in real time.
Example three:
dispersing 100 g of sulfonated cellulose fibers in 2L of deionized water under the stirring effect, dropwise adding 3L (20 g/L) of silver nitrate solution, reacting at room temperature for 1-5 h, performing suction filtration, drying at room temperature to obtain silver-loaded sulfonated cellulose fibers, adding 100 g of silver-loaded sulfonated cellulose fibers to 5L of epoxy water-based resin, and mechanically stirring for 10-24 h to obtain hydrogen sulfide gas detection slurry. And dip-coating the hydrogen sulfide gas detection slurry on the whole steel cylinder, and drying at 100 ℃ for 20 min to obtain the steel cylinder capable of detecting the leakage of the hydrogen sulfide gas in real time.
The obtained steel cylinder with the function of detecting the leakage of the hydrogen sulfide gas in real time is subjected to index testing, and the index testing comprises the following steps:
ferrous sulfide and dilute sulfuric acid are reacted to produce hydrogen sulfide gas, which is mixed with nitrogen to prepare the mixture with volume concentration of 10-3v/v、10-2 v/v and 10-1 v/v hydrogen sulfide gas, and steel cylinderPlacing the mixture in a mixed gas, observing the color of the mixture, and displaying the following results:
the steel cylinders obtained in the embodiment all have color change along with the time, the color reaches the deepest within about 2 min, and the color development degrees of the steel cylinders to three kinds of hydrogen sulfide gases with different volume concentrations are different, wherein the color development degree to 10 kinds of hydrogen sulfide gases-1 The maximum coloration of the concentration of hydrogen sulfide gas at v/v is 10-3The concentration of hydrogen sulfide gas at v/v is the lightest in color development.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A production method for detecting a hydrogen sulfide gas steel cylinder in real time is characterized by comprising the following steps;
the method comprises the following steps: firstly, preparing hydrogen sulfide gas detection slurry, dispersing sulfonated cellulose fibers in deionized water, continuously stirring, then dropwise adding a silver nitrate solution, reacting at room temperature for 1-5 hours, performing suction filtration, and drying at room temperature to obtain silver-loaded sulfonated cellulose fibers;
step two: adding the silver-loaded sulfonated cellulose fiber obtained in the step one into epoxy water-based resin, and mechanically stirring for 10-24 hours to obtain hydrogen sulfide gas detection slurry;
step three; and (3) applying the hydrogen sulfide gas detection slurry obtained in the step two to the whole steel cylinder, and drying at 60-150 ℃ for 2-20 min to obtain the gas steel cylinder capable of detecting hydrogen sulfide in real time.
2. The production method of the steel cylinder for detecting the hydrogen sulfide gas in real time as claimed in claim 1, wherein the concentration of the silver nitrate solution in the first step is 1-50 g/L.
3. The production method of the steel cylinder for detecting the hydrogen sulfide gas in real time according to claim 1, wherein the consumption of the silver-loaded sulfonated cellulose fiber in the second step is 1-5% of the epoxy water-based resin.
4. The method for producing the steel cylinder for detecting the hydrogen sulfide gas in real time as claimed in claim 1, wherein the hydrogen sulfide gas detection slurry is applied to the whole steel cylinder in one of spraying, brushing, dipping and printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465664.7A CN112525433A (en) | 2020-12-14 | 2020-12-14 | Production method for detecting hydrogen sulfide gas steel cylinder in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465664.7A CN112525433A (en) | 2020-12-14 | 2020-12-14 | Production method for detecting hydrogen sulfide gas steel cylinder in real time |
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| Publication Number | Publication Date |
|---|---|
| CN112525433A true CN112525433A (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011465664.7A Pending CN112525433A (en) | 2020-12-14 | 2020-12-14 | Production method for detecting hydrogen sulfide gas steel cylinder in real time |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250260A (en) * | 1992-07-02 | 1993-10-05 | Riken Keiki Co., Ltd. | Tape for detecting hydrides |
| JP2005345338A (en) * | 2004-06-04 | 2005-12-15 | Matsushita Electric Ind Co Ltd | Coating film pigment for hydrogen gas detection, coating film for hydrogen gas detection, and hydrogen gas detection tape |
| JP2006343282A (en) * | 2005-06-10 | 2006-12-21 | Riken Keiki Co Ltd | Hydrogen sulfide detection material |
| CN109331798A (en) * | 2018-11-16 | 2019-02-15 | 江苏科技大学 | A kind of preparation method of solid phase microextraction material |
| CN110551301A (en) * | 2018-05-30 | 2019-12-10 | 华南理工大学 | Water-resistant nano cellulose film and preparation method thereof |
-
2020
- 2020-12-14 CN CN202011465664.7A patent/CN112525433A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250260A (en) * | 1992-07-02 | 1993-10-05 | Riken Keiki Co., Ltd. | Tape for detecting hydrides |
| JP2005345338A (en) * | 2004-06-04 | 2005-12-15 | Matsushita Electric Ind Co Ltd | Coating film pigment for hydrogen gas detection, coating film for hydrogen gas detection, and hydrogen gas detection tape |
| JP2006343282A (en) * | 2005-06-10 | 2006-12-21 | Riken Keiki Co Ltd | Hydrogen sulfide detection material |
| CN110551301A (en) * | 2018-05-30 | 2019-12-10 | 华南理工大学 | Water-resistant nano cellulose film and preparation method thereof |
| CN109331798A (en) * | 2018-11-16 | 2019-02-15 | 江苏科技大学 | A kind of preparation method of solid phase microextraction material |
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Application publication date: 20210319 |