CN109001102B - Sulfur dioxide resistance test box - Google Patents
Sulfur dioxide resistance test box Download PDFInfo
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- CN109001102B CN109001102B CN201810475767.8A CN201810475767A CN109001102B CN 109001102 B CN109001102 B CN 109001102B CN 201810475767 A CN201810475767 A CN 201810475767A CN 109001102 B CN109001102 B CN 109001102B
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- sulfur dioxide
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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Abstract
The invention provides a sulfur dioxide resistance test box which comprises a test box body, a plurality of built-in round bearing discs, a telescopic shell, a plurality of elastic rubber sealing rings and a plurality of elastic rubber sealing rings, wherein the plurality of built-in round bearing discs are arranged in the test box body; the bearing disc and the telescopic shell form a closed testing cavity; the sulfur dioxide gas supply device is communicated with the test box body and is used for supplying air and sulfur dioxide gas; and the nitrogen supply device is communicated with the outer side cavity between the test box body and the bearing disc through a nitrogen supply pipeline. The invention solves the defects that the internal test space of the existing sulfur dioxide resistant test box is fixed and can not be changed, and when the number of test articles is small or the number of the test articles is small, the waste of sulfur dioxide mixed gas exists.
Description
Technical Field
The invention relates to the field of quality detection equipment, in particular to a sulfur dioxide resistance test box.
Background
Corrosion resistance tests typically use sulfur dioxide for accelerated aging tests, in which a sulfur dioxide resistant test chamber is often required. In contrast, patent document CN201520579917.1 discloses a sulfur dioxide test chamber, in which the test space inside the chamber is fixed and unchangeable, and when a plurality of articles or a single article are tested, the same concentration of sulfur dioxide mixed gas needs to be set, and when the number of the tested articles is small or small, the sulfur dioxide mixed gas is wasted.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a sulfur dioxide resistant test box, which solves the defects that the internal test space of the existing sulfur dioxide resistant test box is fixed and can not be changed, and when the number of test articles is smaller or less, the waste of sulfur dioxide mixed gas exists.
The invention aims to provide a sulfur dioxide resistant test box, which overcomes the defect of poor sealing effect of the existing sulfur dioxide resistant test box.
(II) technical scheme
In order to solve the technical problem, the sulfur dioxide resistance test box provided by the invention comprises a test box body, a plurality of built-in circular bearing discs are arranged in the test box body, telescopic shells are fixedly connected onto the bearing discs, and each fixed foldable shell comprises an organ type telescopic pipe body and a disposable telescopic silica gel top sleeve; the bearing disc and the telescopic shell form a closed testing cavity;
the sulfur dioxide gas supply device is communicated with the test box body and is used for supplying air and sulfur dioxide gas; and the nitrogen supply device is communicated with the outer side cavity between the test box body and the bearing disc through a nitrogen supply pipeline. According to the invention, by arranging the receiving sheet with the telescopic shell and the changeable inner space, the telescopic silica gel jacking sleeve can be blown or flattened by adjusting the pressure difference between the mixed gas of nitrogen and sulfur dioxide, and the height of the organ type telescopic pipe body is adjusted in a combined manner, so that the volume of the test cavity of the receiving disc is increased or reduced, the receiving disc is suitable for the volume of a sample to be tested, the use of sulfur dioxide gas is reduced, the emission of corrosive gas of sulfur dioxide is also reduced, meanwhile, the existing sulfur dioxide resistant test box is easy to leak, the safety of a test is poor, the requirement on the sealing property of the sulfur dioxide resistant test box is high, and the structure of the sealing device is complex. The invention also can set the pressure of nitrogen to be larger than the external pressure, thereby increasing the sealing property of the sulfur dioxide resistant test box, reducing the risk of sulfur dioxide gas leakage in the sulfur dioxide resistant test box, improving the safety of the test, reducing the requirement on the sealing property of the sulfur dioxide resistant test box and facilitating the simplification of the sealing device. Under different test standards (particularly enterprise standards), the requirements of accelerated tests are different; when the concentration of the input sulfur dioxide introduced into the mixed gas is unchanged, the volume of the test cavity can be reduced and the amount of sulfur dioxide contacted with the product in unit area can be increased by increasing or reducing the pressure of nitrogen, so that the aging of the product is accelerated by phase change.
Preferably, the sulfur dioxide gas supply device comprises a sulfur dioxide gas cylinder, a sulfur dioxide gas supply pipeline, an air input pipeline and a mixed gas box, the sulfur dioxide gas cylinder is communicated with the mixed gas box through the sulfur dioxide gas supply pipeline, and the air input pipeline is communicated with the mixed gas box at the tail end.
Preferably, the mixed gas box is communicated with the testing cavity through a mixed gas output pipeline.
Preferably, the sulfur dioxide gas supply pipeline is provided with a first gas flow control valve.
Preferably, a second gas flow control valve is arranged on the air input pipeline.
Preferably, the nitrogen gas supply device comprises a nitrogen gas bottle and a nitrogen gas output pipeline, and the nitrogen gas bottle is communicated with the outer side cavity through the nitrogen gas output pipeline.
Preferably, the outer cavity is also communicated with an air discharge pipeline.
Preferably, a third gas flow control valve is provided on the nitrogen gas supply line.
Preferably, the gas mixing tank is provided with a first gas pressure valve; and a second gas pressure valve is arranged on the nitrogen output pipeline.
Preferably, the mixed gas box is provided with a sulfur dioxide concentration tester.
(III) advantageous effects
The invention provides a sulfur dioxide resistance test box which has the following advantages:
1. according to the invention, by arranging the receiving sheet with the telescopic shell and the changeable inner space, the telescopic silica gel jacking sleeve can be blown or flattened by adjusting the pressure difference between the mixed gas of nitrogen and sulfur dioxide, and the height of the organ type telescopic pipe body is adjusted in a combined manner, so that the volume of the test cavity of the receiving disc is increased or reduced, the receiving disc is suitable for the volume of a tested sample, the use of sulfur dioxide gas is reduced, the emission of corrosive gas of sulfur dioxide is also reduced, meanwhile, the existing sulfur dioxide resistant test box is easy to leak, the safety of a test is poor, the requirement on the sealing property of the sulfur dioxide resistant test box is high, and the structure of the sealing device is complex. The invention also can set the pressure of nitrogen to be larger than the external pressure, thereby increasing the sealing property of the sulfur dioxide resistant test box, reducing the risk of sulfur dioxide gas leakage in the sulfur dioxide resistant test box, improving the safety of the test, reducing the requirement on the sealing property of the sulfur dioxide resistant test box and facilitating the simplification of the sealing device. Under different test standards, the requirements of accelerated tests are different; when the concentration of the input sulfur dioxide introduced into the mixed gas is unchanged, the volume of the test cavity can be reduced and the amount of sulfur dioxide contacted with the product in unit area can be increased by increasing or reducing the pressure of nitrogen, so that the aging of the product is accelerated by phase change.
Drawings
Fig. 1 is a schematic view of the internal structure of a sulfur dioxide resistance test chamber of example 1 of the present invention.
1. A test box body; 2. a bearing plate; 3. a retractable housing; 4. an organ type telescopic tube body; 5. the disposable telescopic silica gel top sleeve; 6. testing the cavity; 7. a sulfur dioxide supply device; 8. a nitrogen gas supply device; 9. an outer cavity; 10. a sulfur dioxide gas cylinder; 11. a sulfur dioxide gas supply line; 12. an air input line; 13. a mixed gas tank; 14. a first gas flow control valve; 15. a second gas flow control valve; 16. a nitrogen gas cylinder; 17. a nitrogen output pipeline; 18. an air bleed line; 19. a third gas flow control valve; 20. a first gas pressure valve; 21. a second gas pressure valve; 22. sulfur dioxide concentration tester.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
as shown in figure 1, the sulfur dioxide resistance test box provided by the invention comprises a test box body 1, a plurality of built-in circular bearing discs 2 are arranged in the test box body, telescopic shells 3 are fixedly connected onto the bearing discs, and each fixed foldable shell comprises an organ type telescopic pipe body 4 and a disposable telescopic silica gel top sleeve 5; the bearing disc and the telescopic shell form a closed testing cavity 6; the sulfur dioxide gas supply device 7 is communicated with the test box body and is used for supplying air and sulfur dioxide gas; and a nitrogen gas supply device 8 which is communicated with an outer cavity 9 between the test box body and the receiving tray through a nitrogen gas supply pipeline.
The sulfur dioxide air supply device comprises a sulfur dioxide gas cylinder 10, a sulfur dioxide air supply pipeline 11, an air input pipeline 12 and a mixed gas box 13, wherein the sulfur dioxide gas cylinder is communicated with the mixed gas box through the sulfur dioxide air supply pipeline, and the tail end of the air input pipeline is communicated with the mixed gas box. The mixed gas box is communicated with the testing cavity through a mixed gas output pipeline. And a first gas flow control valve 14 is arranged on the sulfur dioxide gas supply pipeline. And a second gas flow control valve 15 is arranged on the air input pipeline. The nitrogen supply device comprises a nitrogen bottle 16 and a nitrogen output pipeline 17, and the nitrogen bottle is communicated with the outer cavity through the nitrogen output pipeline. The outer cavity is also connected to a gas discharge line 18. The nitrogen gas supply line is provided with a third gas flow control valve 19. A first gas pressure valve 20 is arranged on the mixed gas tank; and a second gas pressure valve 21 is arranged on the nitrogen output pipeline. The gas mixture tank is equipped with a sulphur dioxide concentration tester 22.
When the test product is small, the telescopic shell is compressed, the first flow control valve and the second flow control valve are opened, the proportion of the sulfur dioxide gas is adjusted, the sulfur dioxide and the air are filled, the second flow control valve is opened, the pressure of the nitrogen gas filled into the outer cavity is increased, and the disposable telescopic silica gel top sleeve is enabled to be inwards concave.
When the test product is large, the telescopic shell is stretched, the first flow control valve and the second flow control valve are opened, the proportion of the sulfur dioxide gas is adjusted, the sulfur dioxide and the air are filled, the second flow control valve is opened, the pressure of the nitrogen gas filled into the outer cavity is reduced, and the disposable telescopic silica gel top sleeve protrudes outwards.
Example 2:
the invention provides a sulfur dioxide resistance test box which comprises a test box body, a plurality of built-in round bearing discs, a telescopic shell, a plurality of elastic rubber sealing rings and a plurality of elastic rubber sealing rings, wherein the plurality of built-in round bearing discs are arranged in the test box body; the bearing disc and the telescopic shell form a closed testing cavity;
the sulfur dioxide gas supply device is communicated with the test box body and is used for supplying air and sulfur dioxide gas; and the nitrogen supply device is communicated with the outer side cavity between the test box body and the bearing disc through a nitrogen supply pipeline.
The above embodiments are only used for illustrating the present invention, and the structure, connection mode and the like of each component can be changed, and all equivalent changes and improvements made on the basis of the technical scheme of the present invention should not be excluded from the protection scope of the present invention.
Claims (10)
1. A sulfur dioxide resistance test chamber, comprising:
the test box body is internally provided with a plurality of built-in circular bearing discs, telescopic shells are fixedly connected to the bearing discs and comprise organ type telescopic pipe bodies and disposable telescopic silica gel top sleeves; the bearing disc and the telescopic shell form a closed testing cavity;
the sulfur dioxide gas supply device is communicated with the test box body and is used for supplying air and sulfur dioxide gas; and
and the nitrogen supply device is communicated with an outer cavity between the test box body and the receiving disc through a nitrogen supply pipeline.
2. The sulfur dioxide resistance test chamber as claimed in claim 1, wherein the sulfur dioxide gas supply device comprises a sulfur dioxide gas cylinder, a sulfur dioxide gas supply pipeline, an air input pipeline and a mixed gas chamber, the sulfur dioxide gas cylinder is communicated with the mixed gas chamber through the sulfur dioxide gas supply pipeline, and the tail end of the air input pipeline is communicated with the mixed gas chamber.
3. A sulfur dioxide resistance test chamber as claimed in claim 2, wherein said mixed gas chamber is connected to the test cavity by a mixed gas outlet line.
4. A sulfur dioxide resistance test cell according to claim 3, wherein the sulfur dioxide gas supply line is provided with a first gas flow control valve.
5. A sulfur dioxide resistance test chamber as claimed in claim 3, wherein said air input line is provided with a second gas flow control valve.
6. A test chamber for sulfur dioxide resistance according to claim 2, 3, 4 or 5, wherein said nitrogen gas supply means comprises a nitrogen gas cylinder and a nitrogen gas output line, said nitrogen gas cylinder being in communication with the outside cavity through the nitrogen gas output line.
7. The sulfur dioxide resistance test chamber of claim 6, wherein the outside cavity is further connected to a vent line.
8. A sulfur dioxide resistance test cell according to claim 7, wherein said nitrogen supply line is fitted with a third gas flow control valve.
9. A sulfur dioxide resistance test chamber as claimed in claim 8, wherein said gas mixture chamber is provided with a first gas pressure valve; and a second gas pressure valve is arranged on the nitrogen output pipeline.
10. A sulfur dioxide resistance test cell as defined in claim 9, wherein said gas mixture cell is equipped with a sulfur dioxide concentration tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475767.8A CN109001102B (en) | 2018-05-17 | 2018-05-17 | Sulfur dioxide resistance test box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475767.8A CN109001102B (en) | 2018-05-17 | 2018-05-17 | Sulfur dioxide resistance test box |
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| CN109001102A CN109001102A (en) | 2018-12-14 |
| CN109001102B true CN109001102B (en) | 2020-11-13 |
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| CN201810475767.8A Active CN109001102B (en) | 2018-05-17 | 2018-05-17 | Sulfur dioxide resistance test box |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102539311A (en) * | 2012-01-13 | 2012-07-04 | 北京科技大学 | Trace corrosive gas environmental test box |
| CN203011809U (en) * | 2012-11-05 | 2013-06-19 | 郭健 | Carbon dioxide-saving type concrete carbonation test box |
| CN203587596U (en) * | 2013-10-22 | 2014-05-07 | 艾博生物医药(杭州)有限公司 | Detection device |
| CN204005017U (en) * | 2014-07-26 | 2014-12-10 | 济南城建集团有限公司 | Close water, Air－tight Test method shutoff air bag used and test air bag |
| CN104350370A (en) * | 2012-06-14 | 2015-02-11 | 英飞康有限公司 | Testing device having a test gas container |
| CN204882328U (en) * | 2015-08-04 | 2015-12-16 | 上海林频仪器股份有限公司 | Sulfur dioxide proof box |
| CN105964311A (en) * | 2016-07-07 | 2016-09-28 | 南京信息工程大学 | Environment test box |
| CN107389438A (en) * | 2017-08-01 | 2017-11-24 | 中科探海(苏州)海洋科技有限责任公司 | A kind of volume is servo-actuated pressurizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002075257A2 (en) * | 2001-03-20 | 2002-09-26 | University Of Florida | Enhanced triaxial tester with volume change device for measurement of flow properties of dry particulate systems under low confining pressures |
| US10226201B2 (en) * | 2015-10-29 | 2019-03-12 | Invoy Holdings, Llc | Flow regulation device for breath analysis and related method |
-
2018
- 2018-05-17 CN CN201810475767.8A patent/CN109001102B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539311A (en) * | 2012-01-13 | 2012-07-04 | 北京科技大学 | Trace corrosive gas environmental test box |
| CN104350370A (en) * | 2012-06-14 | 2015-02-11 | 英飞康有限公司 | Testing device having a test gas container |
| CN203011809U (en) * | 2012-11-05 | 2013-06-19 | 郭健 | Carbon dioxide-saving type concrete carbonation test box |
| CN203587596U (en) * | 2013-10-22 | 2014-05-07 | 艾博生物医药(杭州)有限公司 | Detection device |
| CN204005017U (en) * | 2014-07-26 | 2014-12-10 | 济南城建集团有限公司 | Close water, Air－tight Test method shutoff air bag used and test air bag |
| CN204882328U (en) * | 2015-08-04 | 2015-12-16 | 上海林频仪器股份有限公司 | Sulfur dioxide proof box |
| CN105964311A (en) * | 2016-07-07 | 2016-09-28 | 南京信息工程大学 | Environment test box |
| CN107389438A (en) * | 2017-08-01 | 2017-11-24 | 中科探海(苏州)海洋科技有限责任公司 | A kind of volume is servo-actuated pressurizer |
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| CN109001102A (en) | 2018-12-14 |
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Inventor after: Shi Yumei Inventor after: Ding Ke Inventor before: Shi Yumei Inventor before: Ding Ke |
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