CN205067411U - Hydrogen sulfide gas body detection device - Google Patents
Hydrogen sulfide gas body detection device Download PDFInfo
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- CN205067411U CN205067411U CN201520542941.8U CN201520542941U CN205067411U CN 205067411 U CN205067411 U CN 205067411U CN 201520542941 U CN201520542941 U CN 201520542941U CN 205067411 U CN205067411 U CN 205067411U
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- hydrogen sulfide
- sulfide gas
- quartz ampoule
- contact rod
- gas pick
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Abstract
The utility model discloses a hydrogen sulfide gas body detection device. The device is including quartz capsule, heating power supply and computational system and several display, wherein be in the both ends of quartz capsule set up into appearance pipe and blow -off pipe respectively, be provided with the conducting rod in the quartz capsule, the surface of conducting rod is provided with the nano - zinc oxide coating film, seals with fixed through sealed the knot between conducting rod and the quartz capsule, the both ends of conducting rod link to each other with heating element, and be provided with the electrode respectively and contact with the both ends of nano - zinc oxide membrane respectively at quartz capsule both ends, computational system and several display be connected with the electrode through the wire. The utility model discloses a hydrogen sulfide gas body detection device sensitivity is high, can carry out quantitative determination to the hydrogen sulfide gas body of trace, while still has smallly, simple structure, easy -operating advantage.
Description
Technical field
The present invention relates to a kind of hydrogen sulfide gas pick-up unit, specifically the pick-up unit of stink damp body burden in a kind of natural gas line and equipment.
Background technology
Ubiquity sulfuretted hydrogen in petroleum gas, and sulfuretted hydrogen is a kind of harmful gases having severe toxicity, and give out penetrating odor, not only jeopardize the life security of personnel, also can in exploitation, conveying, storing process, have extremely strong corrosive attack to production equipment, gathering line etc. and be formed " hydrogen embrittlement ", thus cause serious accident.Therefore, must carry out detecting fast and directly to the concentration of hydrogen sulfide in equipment in production run and pipeline, ensure the safety of personnel and equipment.
At present, the painted length method of the detector tube in vapor-phase chromatography or American Society Testing and Materials standard A STM4810-06 is mainly adopted for hydrogen sulfide in natural gas gas detect means both at home and abroad.But the former test operation is numerous and diverse, apparatus expensive and need specific test experience place; The latter's poor accuracy.In addition, the shortcomings such as detection of infrared laser method, ultraviolet fluorescence analysis, electrochemical process etc. are also applied to the detection of hydrogen sulfide in natural gas content, but still it is long to there is detection time, and device volume is excessive.
The employing nano material of existing domestic report is used for the catalytic reaction photosensitiveness method of hydrogen sulfide in natural gas gas detect mainly being adopted to nano material, analyzing, calculating the concentration of sulfuretted hydrogen by carrying out detection after Photoelectric Signal Processing.Existing nano zinc oxide material is used to hydrogen sulfide remover more, zinc paste load is used in process equipment as catalyzer in mesoporous material.The electric conductivity of existing nano zinc oxide material is used to be prepared in nano zine oxide conductive film and semiconductor material more.Up to now also not about the method for conductivity detection hydrogen sulfide in natural gas and the relevant report of pick-up unit of using nano zine oxide.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide and is a kind ofly easy to operate and the high hydrogen sulfide gas pick-up unit of accuracy of detection.
The technical solution of the utility model is:
A kind of hydrogen sulfide gas pick-up unit, comprises quartz ampoule, heating power supply and computing system and Digital display; Wherein sample feeding pipe and bleeder pipe are set respectively at the two ends of described quartz ampoule; In quartz ampoule, be provided with contact rod, the surface of contact rod is provided with nano zine oxide plated film, is sealed and fix between contact rod and quartz ampoule by seal buckle; The two ends of contact rod are connected with heating element, and be respectively arranged with electrode at quartz ampoule two ends and contact with the axial two ends of nano zine oxide plated film respectively, described computing system and Digital display are connected with electrode by wire; The inside of quartz ampoule is provided with pressure responsive element.
In hydrogen sulfide gas pick-up unit of the present utility model, wherein, sample feeding pipe arranges inlet shutoff valve, bleeder pipe arranges outlet shutoff valve.
In hydrogen sulfide gas pick-up unit of the present utility model, preferably, described contact rod is coaxial with described quartz ampoule.
In hydrogen sulfide gas pick-up unit of the present utility model, described hydrogen sulfide gas pick-up unit also comprises heating power supply, and it is connected by the heating element of power lead with contact rod two ends.
The length-diameter ratio of described quartz ampoule is generally 3 ~ 10.Generally be provided with dead slot at the cental axial position of quartz ampoule, for installing nano zine oxide plated film contact rod.Quartz ampoule two ends arrange sample feeding pipe and bleeder pipe respectively, and sample feeding pipe and bleeder pipe are respectively equipped with flow stop valve, are used for keeping the sealed environment in quartz ampoule.
Described contact rod is fixed by seal buckle fastening at quartz ampoule two ends and is sealed; Contact rod is detachable, and after assembling with quartz ampoule, nano zine oxide plated film is just in time positioned at quartz ampoule inside.On nano zine oxide plated film, (axial two ends) contact respectively positive electrode and negative electrode, and connects computing system and Digital display in quartz ampoule outside; Contact rod two ends arrange heating element, and heating element heats and temperature control contact rod.
Described nano zine oxide plated film can be prepared by electrodeposition process, and wherein can also adulterate Ga
3+, Al
3+, Ag+, Cd
2+deng metal carrying high resistivity.Heated perimeter on contact rod is generally at 150 ~ 250 DEG C.Sulfuretted hydrogen in nano zine oxide plated film and rock gas carries out reduction reaction through heating, and have an impact to the resistivity of nano zine oxide plated film, according to the content of hydrogen sulfide in natural gas under the change inverse unit volume of resistivity, the chemical reaction related to is:
ZnO+H
2S=ZnS+H
2O。
Described computing system and Digital display are the equipment integrating computing machine and display, it is connected with nano zine oxide plated film contact rod by positive electrode, negative electrode, for measuring resistance numerical value, the blank measure numerical value of deduction nano zine oxide and the background interference of zinc sulphide resistance signal set before, obtain increased resistance value, be converted into the unit concentration value of absorbing hydrogen sulphide by computing machine, and finally provide on Digital display.
Described heating power supply is external in contact rod, for giving the heating element heats at contact rod two ends, thus heats the nano zinc oxide material in quartz ampoule, and can control heating-up temperature.
Described heating element is located on contact rod, can fix contact rod and connect heating power supply, controlling warming temperature by heating power supply, realizes the function of heating to heating rod and safety temperature control.
Described pressure responsive element is located in quartz ampoule, is used for monitoring the gaseous tension of the rock gas generation entering quartz ampoule, prevents quartzy overpressure how high.
In hydrogen sulfide gas pick-up unit of the present utility model, wherein vacuum pump can also be comprised.Described vacuum pump is generally minipump, and it is connected with bleeder pipe.Described minipump has vacuum action, gas in quartz ampoule can be extracted out, improve the vacuum tightness of quartz ampoule, is convenient to the sample introduction of gas to be measured (rock gas) and eliminates air to the impact of testing environment.
Compared with prior art, detection device for hydrogen sulfide of the present utility model has following beneficial effect:
1, equipment volume is little, and structure is simple, easy to operate.
2, device sensitivity is high, quantitatively can detect the hydrogen sulfide gas of trace.
3, testing process is not by environmental restraint, testing result quicklook.
4, environmental protection, detects gas recyclable.
Accompanying drawing explanation
Fig. 1 is the structural representation of hydrogen sulfide gas pick-up unit of the present invention.
Mark in figure: 1-nano zine oxide plated film, 2-heating power supply, 3-minipump, 4-computing system and Digital display, 5-contact rod, 6-quartz ampoule, 7-seal buckle, 8-injection port, 9-inlet shutoff valve, 10-electrode, 11-outlet shutoff valve, 12-relief port, 13-pressure responsive element, 14-heating element.
Embodiment
Below in conjunction with accompanying drawing, hydrogen sulfide gas pick-up unit of the present invention is described further.
As shown in Figure 1, the invention provides a kind of hydrogen sulfide gas pick-up unit, this hydrogen sulfide gas pick-up unit comprises quartz ampoule 6, heating power supply 2 and computing system and Digital display 4; Be provided with injection port 8 and relief port 12 at quartz ampoule 6 two ends, and control aperture by inlet shutoff valve 9 and outlet shutoff valve 11 respectively; Quartz ampoule 6 central shaft can penetrate a contact rod 5 with nano zine oxide plated film 1, sealed by seal buckle 7 at the outer two ends of quartz ampoule 6 and fix, and at the joint of two ends fastening heating element 14 as power lead, connect heating power supply 2 by power lead; Quartz ampoule 6 is connected with two electrodes 10, electrode 10 and nano zine oxide plated film 1 liang of end in contact, for measuring its resistance; Quartz ampoule 6 inside is equipped with a pressure responsive element 13, is connected to outside by electrode interface, and is linked on computing system and Digital display 4 and carries out showing so that the control of pressure.
The present invention using nano zine oxide plated film 1 as the medium absorbing and detect hydrogen sulfide in natural gas content, and measures concentration of hydrogen sulfide by absorbing front and back resistance variations.
The present invention's nano zine oxide plated film 1 used forms plated film by electrodeposition process on the surface of contact rod.
The present invention's nano zine oxide used plated film 1 can contain be suitable for metal-doped simultaneously improve resistivity, as Ga
3+, Al
3+, Ag
+, Cd
2+deng.
Be described below in conjunction with the course of work of accompanying drawing to hydrogen sulfide gas pick-up unit of the present utility model:
Injection port 8 is connected natural gas line, and relief port 12 connects minipump 3, and closes inlet shutoff valve 9 and outlet shutoff valve 11.First open minipump 3 and outlet shutoff valve 11, be extracted into certain vacuum degree by quartz ampoule 6, close outlet shutoff valve 11.Then open inlet shutoff valve 9, be filled with by rock gas in quartz ampoule 6, gas pressure scope, at 0.2-1MPa, closes inlet shutoff valve 9.Open computing system and Digital display 4 pairs of entire system are monitored and the collection of data, open heating power supply 2 pairs of contact rods 5 simultaneously and heat, control temperature at 150 ~ 250 DEG C, to improve the reaction velocity of nano zine oxide plated film 1 and hydrogen sulfide in natural gas.The resistance variations of electrode 10 Real-Time Monitoring nano zine oxide plated film 1, by sending data to computing system and Digital display 4, the relation of computational analysis resistance variations and hydrogen sulfide content, display concentration of hydrogen sulfide value.
Claims (7)
1. a hydrogen sulfide gas pick-up unit, comprises quartz ampoule, heating power supply and computing system and Digital display; Wherein sample feeding pipe and bleeder pipe are set respectively at the two ends of described quartz ampoule; In quartz ampoule, be provided with contact rod, the surface of contact rod is provided with nano zine oxide plated film, is sealed and fix between contact rod and quartz ampoule by seal buckle; The two ends of contact rod are connected with heating element, and be respectively arranged with electrode at quartz ampoule two ends and contact with the axial two ends of nano zine oxide plated film respectively, described computing system and Digital display are connected with electrode by wire.
2. according to hydrogen sulfide gas pick-up unit according to claim 1, it is characterized in that, described sample feeding pipe arranges inlet shutoff valve, described bleeder pipe arranges outlet shutoff valve.
3. according to hydrogen sulfide gas pick-up unit according to claim 1, it is characterized in that, described contact rod and quartz ampoule are coaxially arranged.
4. according to hydrogen sulfide gas pick-up unit according to claim 1, it is characterized in that, described hydrogen sulfide gas pick-up unit also comprises heating power supply, and it is connected by the heating element of power lead with contact rod two ends.
5. according to hydrogen sulfide gas pick-up unit according to claim 1, it is characterized in that, the length-diameter ratio of described quartz ampoule is 3 ~ 10.
6. according to hydrogen sulfide gas pick-up unit according to claim 1, it is characterized in that, the inside of quartz ampoule is provided with pressure responsive element.
7. according to hydrogen sulfide gas pick-up unit according to claim 1, it is characterized in that, described device also comprises vacuum pump, and described vacuum pump is connected with bleeder pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542941.8U CN205067411U (en) | 2015-05-08 | 2015-07-24 | Hydrogen sulfide gas body detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520294109 | 2015-05-08 | ||
| CN2015202941090 | 2015-05-08 | ||
| CN201520542941.8U CN205067411U (en) | 2015-05-08 | 2015-07-24 | Hydrogen sulfide gas body detection device |
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|---|---|
| CN205067411U true CN205067411U (en) | 2016-03-02 |
Family
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| CN201520542941.8U Active CN205067411U (en) | 2015-05-08 | 2015-07-24 | Hydrogen sulfide gas body detection device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187512A (en) * | 2018-09-17 | 2019-01-11 | 四川大学 | A kind of catalytic luminescence analysis method based on nickel oxide detection hydrogen sulfide |
| CN112683960A (en) * | 2020-11-17 | 2021-04-20 | 中国石油天然气股份有限公司 | Device and process for detecting content of toxic gas in formation water of oil field |
| CN112710807A (en) * | 2020-11-17 | 2021-04-27 | 中国石油天然气股份有限公司 | Integrated system and process for detecting and treating toxic gas in oil field drilling core |
| CN112710804A (en) * | 2020-11-17 | 2021-04-27 | 中国石油天然气股份有限公司 | Integrated process and system for detecting and treating toxic gas in deep natural gas |
-
2015
- 2015-07-24 CN CN201520542941.8U patent/CN205067411U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187512A (en) * | 2018-09-17 | 2019-01-11 | 四川大学 | A kind of catalytic luminescence analysis method based on nickel oxide detection hydrogen sulfide |
| CN109187512B (en) * | 2018-09-17 | 2021-07-20 | 四川大学 | Catalytic luminescence analysis method and sensor device for detecting hydrogen sulfide based on nickel oxide |
| CN112683960A (en) * | 2020-11-17 | 2021-04-20 | 中国石油天然气股份有限公司 | Device and process for detecting content of toxic gas in formation water of oil field |
| CN112710807A (en) * | 2020-11-17 | 2021-04-27 | 中国石油天然气股份有限公司 | Integrated system and process for detecting and treating toxic gas in oil field drilling core |
| CN112710804A (en) * | 2020-11-17 | 2021-04-27 | 中国石油天然气股份有限公司 | Integrated process and system for detecting and treating toxic gas in deep natural gas |
| CN112710804B (en) * | 2020-11-17 | 2022-05-06 | 中国石油天然气股份有限公司 | Integrated process and system for detecting and treating toxic gas in deep natural gas |
| CN112710807B (en) * | 2020-11-17 | 2023-02-10 | 中国石油天然气股份有限公司 | Integrated system and process for detecting and treating toxic gas in oil field drilling core |
| CN112683960B (en) * | 2020-11-17 | 2023-02-28 | 中国石油天然气股份有限公司 | Device and process for detecting content of toxic gas in formation water of oil field |
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