CN102261981A - Safe detection device and method for gas storage steel cylinder - Google Patents
Safe detection device and method for gas storage steel cylinder Download PDFInfo
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- CN102261981A CN102261981A CN201110099617XA CN201110099617A CN102261981A CN 102261981 A CN102261981 A CN 102261981A CN 201110099617X A CN201110099617X A CN 201110099617XA CN 201110099617 A CN201110099617 A CN 201110099617A CN 102261981 A CN102261981 A CN 102261981A
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Abstract
The invention discloses a safe detection device and method for a gas storage steel cylinder. The device is provided with a casing, wherein a sealing part is arranged at one end of the casing and comprises a thread and a sealing ring which are connected with a steel cylinder mouth; the other end or the side part of the casing is connected with a leakage detecting part; the leakage detecting part comprises a first valve and a second valve; and the first valve or the second valve is connected with a pressure gauge. The detection device and method of the gas storage steel cylinder can be applied to a Y bottle and a general gas storage steel cylinder, in particular to a steel cylinder filled with inflammable and explosive or poisonous gas; and according to the detection device and method, the safety of the steel cylinder in the transmission process can be improved to a greater degree and the efficiency of the leakage detection is improved.
Description
Technical field
The present invention relates to the gas production technology field, particularly relate to a kind of gas storage steel cylinder safety leakage detection apparatus and leak hunting method.
Background technology
In the process of the manufacturing of photovoltaic device and semiconductor devices manufacturing, can use multiple reacting gas, for example when utilizing chemical vapor deposition (CVD) process deposits film.In the manufacture process of thin-film solar cells, also can use a large amount of silane (SiH
4) gas and germane (GeH
4) gas, utilize the various amorphous silicons of plasma enhanced chemical vapor deposition (PECVD) process deposits, microcrystal silicon and nano-silicon, amorphous germanium and amorphous silicon germanium thin film.
Germane is poisonous, inflammable and colourless gas.Under room temperature and atmospheric pressure, has distinctive penetrating odor.The thermal stability of germane is than silane difference, and about 280 ℃ just can detect germane and are decomposed into germanium and hydrogen.Therefore quite the silane cost is higher also has danger in the production of germane.
The finished product germane generally adopts Y shaped steel bottle to store.The Y bottle is a kind of gas bomb of large volume, and general volume is 400～500 liters, can splendid attire purity is the gas more than 99.9999%.Pressure store is about 166bar (2400psig).Be applicable to germane (GeH4), nitrogen (N2), helium (He), silane (SiH4), sulfur hexafluoride (SF6), Nitrogen trifluoride (NF3), nitrous oxide (N2O) mixed gas etc.Common Y bottle has only a valve protection cap with exterior, does not have O type circle, valve, and parts such as tensimeter do not have safety protection function, will be difficult to find if take place in transit to leak.
Summary of the invention
The invention provides a kind of gas storage steel cylinder leakage detection apparatus and method, can be applicable to Y bottle and general gas storage steel cylinder, the steel cylinder of inflammable and explosive or hypertoxic gas particularly is housed, can improves the security of steel cylinder in transportation to a great extent, and improve the validity of leak detection.
Gas storage steel cylinder safety leakage detection apparatus provided by the invention has a housing, and described housing one end has sealing, and described sealing comprises screw thread and the O-ring seal that is connected with described steel cylinder mouth; The other end of described housing or sidepiece are connected with leak detection portion, and described leak detection portion comprises first valve and second valve, and described first valve or second valve are connected with tensimeter.
Optionally, described first valve and second valve are parallel way, are connected with described housing by a pipeline.
Optionally, described first valve is connected with described housing by a pipeline, and described second valve is connected with described housing by another root pipeline.
Optionally, the material of described O-ring seal is rubber or teflon.
Optionally, described tensimeter is the above digital display type tensimeter of maximum range 3000psig.
Optionally, described device also comprises the gas detecting instrument that can detect gas in the steel cylinder.
Optionally, described steel cylinder mouth has the steel cylinder plug.
Optionally, the interior gas of described steel cylinder is inflammable, explosive or toxic gas.
The method that the gas storage steel cylinder is hunted leak provided by the invention comprises step:
Described device is connected with the steel cylinder mouth;
To vacuumizing in the described device;
In device, charge into not with steel cylinder in the gas of gas reaction, and make in the device gaseous tension P less than gaseous tension in the steel cylinder;
When needing leak detection, gaseous tension in the observation device;
If gaseous tension P is constant in the device, then steel cylinder does not leak; Otherwise,
Utilize detector that the gas in installing is detected, whether the gas in the steel cylinder leaks as can be known.
Optionally, described in device, charge into not with steel cylinder in the gas of gas reaction comprise nitrogen, helium, argon gas or their mixed gas.
Description of drawings
By the more specifically explanation of the preferred embodiments of the present invention shown in the accompanying drawing, above-mentioned and other purpose, feature and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing in proportion, focus on illustrating purport of the present invention.
Fig. 1 to Fig. 3 is the structural representation according to apparatus of the present invention embodiment;
Fig. 4 is the process flow diagram of the inventive method.
Described diagrammatic sketch is schematically, and nonrestrictive, can not excessively limit protection scope of the present invention at this.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, and those skilled in the art can do similar popularization under the situation of intension of the present invention.Therefore the present invention is not subjected to the restriction of following public specific embodiment.
Fig. 1 to Fig. 3 is the structural representation according to apparatus of the present invention embodiment.As shown in the figure, the safe leakage detection apparatus of gas storage steel cylinder 10 of the present invention has a housing 20, and the one end has sealing, and sealing portion comprises screw thread 13 and the O-ring seal 15 that is connected with the bottleneck of described steel cylinder 10; At the other end of housing 20, as shown in Figure 1, be connected with leak detection portion, leak detection portion comprises first valve 21 and second valve 23, and described first valve 21 or second valve 23 are connected with tensimeter 30, and present embodiment first valve 21 is connected with tensimeter 30.The leak detection portion of first valve 21, second valve 23 and tensimeter 30 that comprises can also be positioned at the sidepiece of housing 20, as shown in Figure 2.In embodiment illustrated in figures 1 and 2, first valve 21 and second valve 23 are parallel way, are connected with described housing 20 by a pipeline.In the embodiment shown in fig. 3, first valve 21 is connected with described housing 20 by a pipeline, and described second valve 23 is connected with described housing 20 by another root pipeline.
In the above-described embodiments, the material of O-ring seal 15 can be rubber or teflon.Tensimeter 30 can be that maximum range is the digital display type tensimeter of 3000psig.
Device of the present invention also comprises the gas sensor that can detect gas in the steel cylinder.Gas in the steel cylinder 10 is generally inflammable, explosive or toxic gas.The bottleneck of steel cylinder 10 has steel cylinder plug 11.
The method of utilizing aforementioned safe leakage detection apparatus that the gas storage steel cylinder is hunted leak of the present invention at first is connected described device with the steel cylinder mouth; Then to vacuumizing in the described device; And in device, charge into not with steel cylinder in the gas of gas reaction, and make in the device gaseous tension P less than gaseous tension in the steel cylinder.When needing leak detection in transportation or after storing a period of time, at first gaseous tension in the observation device if gaseous tension is constant in the device, illustrates that then steel cylinder does not leak; If gaseous tension gaseous tension P in the original device in the device, then the gas in the steel cylinder leaks probably, utilizes gas detecting instrument that the gas in installing is detected, and whether the interior gas of steel cylinder leaks as can be known.
Fig. 4 is the process flow diagram according to the inventive method embodiment.As shown in Figure 4, O type circle 15 is installed at first, is utilized screw thread 13 that the housing 20 (valve protection cap just) of safe leakage detection apparatus is closely tightened (S101) with the bottleneck of steel cylinder 10; Open valve 21 then, vacuumize (S102) by 23 pairs of housings 20 of valve; Then in valve protection cap (housing 20), charge into not with bottle in the gas A of gas (for example germane) reaction of splendid attire, for example nitrogen, helium, argon gas or their mixed gas.And making the pressure of gas A remain on pressure value P, this pressure value P is less than the pressure (S103) of gas in the steel cylinder, for example, gaseous tension is 2400psig in the steel cylinder, then the pressure value P with gas A in the housing 20 remains on 1000psig, then, and valve-off 21 and 23 (S104).
In transportation or after storage a period of time, need to hunt leak, for example transportation arrives after the destination, opens valve 21, observes the pressure of housing 20 interior gases at this moment by tensimeter 30, for example is pressure value P 1.If this pressure value P 1 is identical with the pressure value P of previous gas A, illustrate that then steel cylinder 10 gas does not take place leaks (S107).If this pressure value P 1 is higher than or apparently higher than pressure value P, illustrate that then leakage (S108) has very likely taken place the gas in the steel cylinder 10.
For determining that whether the gas in the steel cylinder 10 leaks, and can utilize the gas detecting instrument that detects gas in the steel cylinder 10, for example, if what fill in the steel cylinder 10 is germane, then utilize the Germane gas detector, be connected to valve 23 (not shown)s, just can detect Germane gas and whether leak.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Any those of ordinary skill in the art are not breaking away under the technical solution of the present invention scope situation, all can utilize the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the protection domain of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1. gas storage steel cylinder safety leakage detection apparatus, described device has a housing, and described housing one end has sealing, and described sealing comprises screw thread and the O-ring seal that is connected with described steel cylinder mouth; The other end of described housing or sidepiece are connected with leak detection portion, and described leak detection portion comprises first valve and second valve, and described first valve or second valve are connected with tensimeter.
2. device according to claim 1 is characterized in that: described first valve and second valve are parallel way, are connected with described housing by a pipeline.
3. device according to claim 1 is characterized in that: described first valve is connected with described housing by a pipeline, and described second valve is connected with described housing by another root pipeline.
4. device according to claim 1 is characterized in that: the material of described O-ring seal is rubber or teflon.
5. device according to claim 1 is characterized in that: described tensimeter is the above digital display type tensimeter of maximum range 3000psig.
6. device according to claim 1 is characterized in that: described device also comprises the gas detecting instrument that can detect gas in the steel cylinder.
7. device according to claim 1 is characterized in that: described steel cylinder mouth has the steel cylinder plug.
8. device according to claim 1 is characterized in that: the gas in the described steel cylinder is inflammable, explosive or toxic gas.
9. leak hunting method that utilizes claim 1 described safe leakage detection apparatus that the gas storage steel cylinder is hunted leak comprises step:
Described device is connected with the steel cylinder mouth;
To vacuumizing in the described device;
In device, charge into not with steel cylinder in the gas of gas reaction, and make in the device gaseous tension P less than gaseous tension in the steel cylinder;
When needing leak detection, gaseous tension in the observation device;
If gaseous tension P is constant in the device, then steel cylinder does not leak; Otherwise,
Utilize detector that the gas in installing is detected, whether the gas in the steel cylinder leaks as can be known.
10. method according to claim 9 is characterized in that: described in device, charge into not with steel cylinder in the gas of gas reaction comprise nitrogen, helium, argon gas or their mixed gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110099617XA CN102261981A (en) | 2011-04-21 | 2011-04-21 | Safe detection device and method for gas storage steel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110099617XA CN102261981A (en) | 2011-04-21 | 2011-04-21 | Safe detection device and method for gas storage steel cylinder |
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| CN102261981A true CN102261981A (en) | 2011-11-30 |
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| CN201110099617XA Pending CN102261981A (en) | 2011-04-21 | 2011-04-21 | Safe detection device and method for gas storage steel cylinder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539074A (en) * | 2011-12-15 | 2012-07-04 | 宁夏电力公司电力科学研究院 | Leakage detecting method of hydrogen system for coal-fired power generator |
| CN103175659A (en) * | 2013-02-04 | 2013-06-26 | 李连清 | Technological method for testing natural gas cylinders |
| CN104913193A (en) * | 2015-06-30 | 2015-09-16 | 宜昌江峡船用机械有限责任公司 | Leakage detection method and device for inner container of interlayer low-temperature container |
| CN113685716A (en) * | 2021-07-15 | 2021-11-23 | 靳开远 | Air leakage self-display type pressure container |
| CN114323464A (en) * | 2022-03-08 | 2022-04-12 | 浙江工业大学 | BOSS structure sealing experimental device, system and testing method for IV-type hydrogen storage cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647842A1 (en) * | 1993-10-08 | 1995-04-12 | Elpatronic Ag | Procedure and apparatus for leak detection of a container, especially of a plastic bottle |
| CN1229916A (en) * | 1999-02-08 | 1999-09-29 | 于志谦 | Dual-fuel automotive high pressure duct leakage detecting device |
| CN101424581A (en) * | 2007-11-02 | 2009-05-06 | 英华达（上海）科技有限公司 | Sealing test device and method thereof |
| CN201302507Y (en) * | 2008-10-15 | 2009-09-02 | 江苏亚洲气体设备有限公司 | Air tightness test device for gas cylinder |
| CN201754118U (en) * | 2010-06-28 | 2011-03-02 | 北汽福田汽车股份有限公司 | Tightness detection device and tightness detection system |
-
2011
- 2011-04-21 CN CN201110099617XA patent/CN102261981A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647842A1 (en) * | 1993-10-08 | 1995-04-12 | Elpatronic Ag | Procedure and apparatus for leak detection of a container, especially of a plastic bottle |
| CN1229916A (en) * | 1999-02-08 | 1999-09-29 | 于志谦 | Dual-fuel automotive high pressure duct leakage detecting device |
| CN101424581A (en) * | 2007-11-02 | 2009-05-06 | 英华达（上海）科技有限公司 | Sealing test device and method thereof |
| CN201302507Y (en) * | 2008-10-15 | 2009-09-02 | 江苏亚洲气体设备有限公司 | Air tightness test device for gas cylinder |
| CN201754118U (en) * | 2010-06-28 | 2011-03-02 | 北汽福田汽车股份有限公司 | Tightness detection device and tightness detection system |
Non-Patent Citations (2)
| Title |
|---|
| 刘卫平等: "差压法检测压力气体泄漏的研究", 《机械工程自动化》 * |
| 陈宇等: "差压气密性检测仪设计与实现", 《中国计量学院学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539074A (en) * | 2011-12-15 | 2012-07-04 | 宁夏电力公司电力科学研究院 | Leakage detecting method of hydrogen system for coal-fired power generator |
| CN103175659A (en) * | 2013-02-04 | 2013-06-26 | 李连清 | Technological method for testing natural gas cylinders |
| CN103175659B (en) * | 2013-02-04 | 2015-05-27 | 李连清 | Technological method for testing natural gas cylinders |
| CN104913193A (en) * | 2015-06-30 | 2015-09-16 | 宜昌江峡船用机械有限责任公司 | Leakage detection method and device for inner container of interlayer low-temperature container |
| CN113685716A (en) * | 2021-07-15 | 2021-11-23 | 靳开远 | Air leakage self-display type pressure container |
| CN114323464A (en) * | 2022-03-08 | 2022-04-12 | 浙江工业大学 | BOSS structure sealing experimental device, system and testing method for IV-type hydrogen storage cylinder |
| CN114323464B (en) * | 2022-03-08 | 2022-05-27 | 浙江工业大学 | BOSS structure sealing experimental device, system and testing method for IV-type hydrogen storage cylinder |
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Application publication date: 20111130 |