CN105628750B - Sulphur hexafluoride gas purity detection device - Google Patents
Sulphur hexafluoride gas purity detection device Download PDFInfo
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Abstract
The invention discloses a kind of sulphur hexafluoride gas purity detection devices, it include: first gas detection device, it is provided with the first adsorption column along gas circulating direction, and the air inlet of first gas detection device is provided with first gas flowmeter, and air inlet is connect with one end of the air inlet of the first adsorption column；Second gas detection device is provided with the second adsorption column along gas circulating direction, and one end of the outlet of the second adsorption column is provided with second gas flowmeter；High-temperature cracking furnace is connect with second gas detection device；Third gas detection device, connect with high-temperature cracking furnace, and third gas detection device includes sequentially connected gas sensor, electrical property detection device and data processing equipment, and gas sensor has is coated with TiO on substrate2‑WO3The gas sensing layer and on-metallic protective coating that composite oxide film is formed.The present invention has accurate exclusive PCR gas comprehensively, and detection accuracy is high and can realize the beneficial effect of on-line monitoring.
Description
Technical field
The present invention relates to a kind of gas-detecting devices used in high voltage electric equipment.More specifically, this hair
It is bright to be related to a kind of sulphur hexafluoride gas purity detection device used in the case of high voltage electric equipment.
Background technique
Sulfur hexafluoride gas due to good insulation characterisitic and arc quenching characteristic, in high voltage electric equipment to wide
General application.
Pure sulfur hexafluoride gas colorless and odorless, non-ignitable, chemical property is highly stable at normal temperature, still, in open circuit
In the disjunctions operating process such as device, switch, under the factors such as electric arc, corona, electric spark and high temperature, sulfur hexafluoride gas can be decomposed
The gas purity of sulfur hexafluoride at other gases to make changes；Additionally, due to sulfur hexafluoride gas manufacture link,
The factors such as electrical equipment manufacture and installation process, equipment leakage, adsorbent, cause moisture to be incorporated into sulfur hexafluoride gas, from
And makes insulant inner surface that arcing fault probability occur and increase；Breaker makes under its insulation performance due to making moist or generating condensation
Drop, the gas purity of sulfur hexafluoride, which changes, will seriously affect the operation of high voltage electric equipment, and equipment operating efficiency is caused to drop
Electrical equipment low or even that damage is expensive, therefore, the purity detecting of sulfur hexafluoride gas is particularly important in high voltage electric equipment.
Summary of the invention
It is excellent it is an object of the invention to solve at least the above problems and/or defect, and provide at least to will be described later
Point.
It is a still further object of the present invention to provide a kind of sulfur hexafluoride gas used in the case of high voltage electric equipment
Purity detecting device, can accurate comprehensive exclusive PCR gas, detection accuracy is high and can realize the beneficial effect of on-line monitoring
Fruit.
The air-sensitive biography to form sulfur dioxide is cracked it is a still further object of the present invention to provide a kind of detection sulfur hexafluoride gas
Sensor improves the detection accuracy and detection rates of sulphur hexafluoride gas purity, to obtain accurate gas purity result.
In order to realize these purposes and other advantages according to the present invention, a kind of sulphur hexafluoride gas purity detection is provided
Device, comprising:
First gas detection device is provided with the first adsorption column, the first gas detection dress along gas circulating direction
The air inlet set is provided with first gas flowmeter to detect air inlet total flow, the air inlet and first adsorption column into
One end of gas connects；
Second gas detection device is connect with the first gas detection device, second gas detection device edge
Gas circulating direction is provided with the second adsorption column, the outlet of one end of the air inlet of second adsorption column and first adsorption column
One end connection, one end of the outlet of second adsorption column be provided with second gas flowmeter with detect by it is described first inhale
Gas flow after attached column and the absorption of the second adsorption column；
High-temperature cracking furnace is connect with the second gas detection device, and the high-temperature cracking furnace is along gas approach axis
It is provided with temperature-controlled area and cracking generating region, wherein the temperature-controlled area control enters the gas of the high-temperature cracking furnace
It is gradually warmed up to reach and enter the cracking generating region after gas cracking temperature, the gas for reaching cracking temperature is sent out in the cracking
Cracking reaction occurs for raw area；And
Third gas detection device is connect with the gas outlet of the high-temperature cracking furnace, the third gas detection device
Including sequentially connected gas sensor, electrical property detection device and data processing equipment, the gas sensor has air-sensitive
Layer and on-metallic protective coating, the gas sensing layer on substrate by being coated with TiO2-WO3Composite oxide film is formed, the non-gold
Belong to the top that material protective layer is located at the gas sensing layer, the multiple of array arrangement are provided on the panel of the on-metallic protective coating
Gas access apertures makes detected gas enter the gas sensing layer by the gas access apertures；
Wherein, the sulfur hexafluoride gas product sulfur dioxide of the high-temperature cracking furnace cracking is detected by the third gas
Gas sensing layer in the gas sensor of device, which is had an effect, causes its electrical property to change, the electrical property detection device detection
The electrical property of gas sensor changes and sends data to the data processing equipment, the data processing equipment analysis processing
The content data for exporting detected gas sulfur dioxide calculates sulfur hexafluoride gas by third gas detection device detection
The content of body, by the content of sulfur hexafluoride total gas content corresponding with the air inlet total flow that the first gas flowmeter detects
Compare the purity for obtaining sulfur hexafluoride gas in total gas.
Preferably, wherein first adsorption column is the adsorption column filled with calcium carbonate granule adsorbent material.
Preferably, wherein second adsorption column is the adsorption column filled with sodium hydrate particle adsorbent material.
Preferably, wherein be provided between the gas outlet of the high-temperature cracking furnace and the third gas detection device
Gas suction pump, the outlet of the gas suction pump are correspondingly arranged with multiple gas access apertures, the gas suction pump and micro-control
Device connection processed is aspirated with the automatic control for realizing detected gas.
Preferably, wherein the gas sensing layer is to be flexibly connected with the on-metallic protective coating, in order to the gas sensing layer
Replacement.
Preferably, wherein the electrical property variation of the gas sensor of the electrical property detection device detection is electricity
Resistive.
Preferably, wherein the fixing seat for fixing the gas sensing layer is provided in the gas sensor, it is described solid
Reservation is flexibly connected with gas sensing layer buckle.
Preferably, wherein the gas that the temperature-controlled area control enters the high-temperature cracking furnace is gradually warmed up to reach
Range to gas cracking temperature is 3500~3600 DEG C.
Preferably, wherein first adsorption column and the inner wall of the first gas detection device are detachably connected, with
Convenient for the replacement of first adsorption column.
Preferably, wherein second adsorption column and the inner wall of the second gas detection device are detachably connected, with
Convenient for the replacement of first adsorption column.
The present invention is include at least the following beneficial effects:
1, it due to being provided with first gas detection device and second gas detection device, can exclude to enter high anneal crack
The interference of the vapor and sour gas of furnace is solved, foreign gas interference is discharged comprehensively, improves detection accuracy；
2, by the way that temperature-controlled area is arranged in high-temperature cracking furnace, it can guarantee the steady of the heating temperature of sulfur hexafluoride gas
It is qualitative good, keep the rate of cleavage of sulfur hexafluoride relatively stable, and then gas sensor is made to detect relatively stable signal, helps
In the stability and reliability that improve whole system；
3, Pintsch process is directly carried out by high-temperature cracking furnace, avoids and brings other gaseous impurities into using other methods,
Influence detection accuracy and detection speed；
4, by being coated with TiO on substrate2-WO3Composite oxide film forms gas sensing layer and sulfur hexafluoride gas cracks shape
At sulfur dioxide gas precursor reactant, by electrical property detection device detect gas sensor variation, realize quick online detection,
Detection sensitivity is high；
5, it is played a protective role by the way that non-metallic material protective layer is arranged on gas sensing layer to gas sensing layer, avoids other gases
Influence to gas sensing layer sensitivity；
6, real by being provided with gas suction pump between the gas outlet of high-temperature cracking furnace and the third gas detection device
The automatic control suction of existing detected gas, improves the detection speed of gas；
7, it is flexibly connected by gas sensing layer and on-metallic protective coating and gas sensing layer detachably connects in gas sensor
It connects, is replaced convenient for gas sensing layer, it is easy to use.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sulphur hexafluoride gas purity detection device in one embodiment of the present of invention；
Fig. 2 is the structural schematic diagram of first gas detection device in the present invention；
Fig. 3 is the structural schematic diagram of second gas detection device in the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
Fig. 1 shows a kind of way of realization according to the present invention, including: first gas detection device, along gas
Circulating direction is provided with the first adsorption column, and the air inlet of the first gas detection device is provided with first gas flowmeter to examine
Air inlet total flow is surveyed, the air inlet is connect with one end of the air inlet of first adsorption column；
Second gas detection device is connect with the first gas detection device, second gas detection device edge
Gas circulating direction is provided with the second adsorption column, the outlet of one end of the air inlet of second adsorption column and first adsorption column
One end connection, one end of the outlet of second adsorption column be provided with second gas flowmeter with detect by it is described first inhale
Gas flow after attached column and the absorption of the second adsorption column；
High-temperature cracking furnace is connect with the second gas detection device, and the high-temperature cracking furnace is along gas approach axis
It is provided with temperature-controlled area and cracking generating region, wherein the temperature-controlled area control enters the gas of the high-temperature cracking furnace
It is gradually warmed up to reach and enter the cracking generating region after gas cracking temperature, the gas for reaching cracking temperature is sent out in the cracking
Cracking reaction occurs for raw area；And
Third gas detection device is connect with the gas outlet of the high-temperature cracking furnace, the third gas detection device
Including sequentially connected gas sensor, electrical property detection device and data processing equipment, the gas sensor has air-sensitive
Layer and on-metallic protective coating, the gas sensing layer on substrate by being coated with TiO2-WO3Composite oxide film is formed, the non-gold
Belong to the top that material protective layer is located at the gas sensing layer, the multiple of array arrangement are provided on the panel of the on-metallic protective coating
Gas access apertures makes detected gas enter the gas sensing layer by the gas access apertures；
Wherein, the sulfur hexafluoride gas product sulfur dioxide of the high-temperature cracking furnace cracking is detected by the third gas
Gas sensing layer in the gas sensor of device, which is had an effect, causes its electrical property to change, the electrical property detection device detection
The electrical property of gas sensor changes and sends data to the data processing equipment, the data processing equipment analysis processing
The content data for exporting detected gas sulfur dioxide calculates sulfur hexafluoride gas by third gas detection device detection
The content of body, by the content of sulfur hexafluoride total gas content corresponding with the air inlet total flow that the first gas flowmeter detects
Compare the purity for obtaining sulfur hexafluoride gas in total gas.
Wherein, first adsorption column is the adsorption column filled with calcium carbonate granule adsorbent material, is inhaled by described first
The vapor mixed in attached column detection sulfur hexafluoride gas, excludes vapor interference.
Wherein, second adsorption column is the adsorption column filled with sodium hydrate particle adsorbent material, passes through described second
The sour gas that mixes in absorption post detection sulfur hexafluoride gas, such as: hydrogen fluoride, hydrogen sulfide and enter high temperature at carbon dioxide
The sulfur dioxide mixed in sulfur hexafluoride gas in pyrolysis furnace, the interference of despumation gas.
In a kind of wherein embodiment, set between the gas outlet of the high-temperature cracking furnace and the third gas detection device
Be equipped with gas suction pump, the outlet of the gas suction pump is correspondingly arranged with multiple gas access apertures, the gas suction pump with
Microcontroller connection is aspirated with the automatic control for realizing detected gas.So that gas suction pump is quickly extracted out by Pintsch process hexafluoro
Change the sulfur dioxide gas that sulphur generates, detects it with gas sensing layer haptoreaction, improve detection speed, also, this mode
A kind of only explanation of preferred embodiments, however, it is not limited to this.In carrying out the present invention, it can be selected according to the demand of user
Select other embodiments.
In a kind of wherein embodiment, the gas sensing layer is to be flexibly connected with the on-metallic protective coating, in order to described
The replacement of gas sensing layer, it is easy to use.
In a kind of wherein embodiment, the electrical property variation of the gas sensor of the electrical property detection device detection
For resistance variations, also, this mode is a kind of explanation of preferred embodiments, and however, it is not limited to this.In carrying out the present invention,
Other electrical property variations can be selected to detect according to the demand fast and easy of user.
In a kind of wherein embodiment, the fixing seat for fixing the gas sensing layer is provided in the gas sensor,
The fixing seat is flexibly connected with gas sensing layer buckle, and the fixed gas sensing layer makes gas sensing layer precisely align high-temperature cracking furnace
Gas outlet, accurately detected, in addition, fixing seat and the gas sensing layer buckle are flexibly connected, gas sensing layer is in gas sensor
In it is detachable, replaced convenient for gas sensing layer, it is easy to use.
In a kind of wherein embodiment, the gas that the temperature-controlled area control enters the high-temperature cracking furnace is gradually warmed up
To reach the range of gas cracking temperature for 3500~3600 DEG C, so that the sulfur hexafluoride gas into high-temperature cracking furnace is split completely
Solution improves the detection accuracy of sulfur hexafluoride purity.
In a kind of wherein embodiment, first adsorption column and the inner wall of the first gas detection device detachably connect
It connects, in order to the replacement of first adsorption column.
In a kind of wherein embodiment, second adsorption column and the inner wall of the second gas detection device detachably connect
It connects, in order to the replacement of first adsorption column.
A kind of way of realization of first gas detection device as shown in Figure 2, along gas circulating direction is provided with first
Adsorption column, the air inlet of the first gas detection device are provided with first gas flowmeter to detect air inlet total flow, described
First adsorption column is the adsorption column filled with calcium carbonate granule adsorbent material, passes through the first absorption post detection sulfur hexafluoride gas
The vapor mixed in body excludes vapor interference.
If Fig. 3 shows a kind of way of realization of second gas detection device, the second gas detection device is along gas
Circulating direction is provided with the second adsorption column, and one end of the outlet of second adsorption column is provided with second gas flowmeter to detect
Gas flow after first adsorption column and the absorption of the second adsorption column, second adsorption column are filled with sodium hydroxide
The adsorption column of particulate adsorbent material, by the sour gas mixed in the second absorption post detection sulfur hexafluoride gas, such as: fluorine
The sulfur dioxide mixed in sulfur hexafluoride gas in change hydrogen, hydrogen sulfide, carbon dioxide and entrance high-temperature cracking furnace, despumation
Gas interference.
Number of devices and treatment scale described herein are for simplifying explanation of the invention.To of the invention lithium
The application of sulphur gas purity detection device, modifications and variations will be readily apparent to persons skilled in the art.
As described above, according to the present invention, due to being provided with first gas detection device and second gas detection device,
The interference into the vapor and sour gas of high-temperature cracking furnace can be excluded, foreign gas interference is discharged comprehensively, improves
Detection accuracy；By the way that temperature-controlled area is arranged in high-temperature cracking furnace, it can guarantee the steady of the heating temperature of sulfur hexafluoride gas
It is qualitative good, keep the rate of cleavage of sulfur hexafluoride relatively stable, and then gas sensor is made to detect relatively stable signal, helps
In the stability and reliability that improve whole system；Pintsch process is directly carried out by high-temperature cracking furnace, is avoided using other
Method brings other gaseous impurities into, influences detection accuracy and detection speed；By being coated with TiO on substrate2-WO3Composite oxides
Film forms gas sensing layer and sulfur hexafluoride gas cracks the sulfur dioxide gas precursor reactant to be formed, and is detected by electrical property detection device
The variation of gas sensor realizes that quick online detection, detection sensitivity are high；By the way that non-metallic material quality guarantee is arranged on gas sensing layer
Sheath plays a protective role to gas sensing layer, avoids influence of other gases to gas sensing layer sensitivity；Pass through going out for high-temperature cracking furnace
It is provided with gas suction pump between port and the third gas detection device, the automatic control suction of detected gas is realized, improves
The detection speed of gas；It is flexibly connected by gas sensing layer and on-metallic protective coating and gas sensing layer can in gas sensor
Dismantling connection is replaced convenient for gas sensing layer, easy to use.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With.It can be applied to various suitable the field of the invention completely.It for those skilled in the art, can be easily
Realize other modification.Therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (3)
1. a kind of sulphur hexafluoride gas purity detection device characterized by comprising
First gas detection device is provided with the first adsorption column along gas circulating direction, the first gas detection device
Air inlet is provided with first gas flowmeter to detect air inlet total flow, the air inlet and the air inlet of first adsorption column
One end connection, first adsorption column are the adsorption column filled with calcium carbonate granule adsorbent material；
Second gas detection device is connect with the first gas detection device, and the second gas detection device is along gas
Circulating direction is provided with the second adsorption column, one end of the air inlet of second adsorption column and the one of the outlet of first adsorption column
End connection, one end of the outlet of second adsorption column is provided with second gas flowmeter to detect by first adsorption column
With the gas flow after the absorption of the second adsorption column, second adsorption column is the absorption filled with sodium hydrate particle adsorbent material
Column；
High-temperature cracking furnace is connect with the second gas detection device, and the high-temperature cracking furnace is arranged along gas approach axis
There are temperature-controlled area and cracking generating region, wherein the temperature-controlled area control enters the gas of the high-temperature cracking furnace gradually
Heating enters the cracking generating region after gas cracking temperature to reach, and reaches the gas of cracking temperature in the cracking generating region
Cracking reaction occurs, the range of the temperature-controlled area control temperature is 3500~3600 DEG C；And
Third gas detection device is connect with the gas outlet of the high-temperature cracking furnace, and the third gas detection device includes
Sequentially connected gas sensor, electrical property detection device and data processing equipment, the gas sensor have gas sensing layer and
On-metallic protective coating, the gas sensing layer on substrate by being coated with TiO2-WO3Composite oxide film is formed, the non-metallic material
Quality guarantee sheath is located at the top of the gas sensing layer, and multiple gases of array arrangement are provided on the panel of the on-metallic protective coating
Access apertures, by the gas access apertures make detected gas enter the gas sensing layer, the gas sensing layer with it is described nonmetallic
Protective layer is to be flexibly connected, and in order to the replacement of the gas sensing layer, is provided in the gas sensor for fixing the gas
The fixing seat of photosensitive layer, the fixing seat are flexibly connected with gas sensing layer buckle；
Gas suction pump, the gas are provided between the gas outlet of the high-temperature cracking furnace and the third gas detection device
The outlet of suction pump is correspondingly arranged with multiple gas access apertures, and the gas suction pump connect detected to realize with microcontroller
The automatic control of gas is aspirated；
Wherein, the sulfur hexafluoride gas product sulfur dioxide of the high-temperature cracking furnace cracking passes through the third gas detection device
Gas sensor in gas sensing layer have an effect its electrical property caused to change, the electrical property detection device detects air-sensitive
The resistance variations of sensor simultaneously send data to the data processing equipment, the data processing equipment analysis processing output quilt
The content data of detection gas sulfur dioxide calculates containing for sulfur hexafluoride gas by third gas detection device detection
Amount carries out the content of sulfur hexafluoride total gas content corresponding with the air inlet total flow that the first gas flowmeter detects pair
Than the purity for obtaining sulfur hexafluoride gas in total gas.
2. sulphur hexafluoride gas purity detection device as described in claim 1, which is characterized in that first adsorption column and institute
The inner wall for stating first gas detection device is detachably connected, in order to the replacement of first adsorption column.
3. sulphur hexafluoride gas purity detection device as described in claim 1, which is characterized in that second adsorption column and institute
The inner wall for stating second gas detection device is detachably connected, in order to the replacement of first adsorption column.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675206A (en) * | 2013-11-27 | 2014-03-26 | 中国船舶重工集团公司第七一八研究所 | System for detecting sulfur hexafluoride |
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| CN2747583Y (en) * | 2004-09-24 | 2005-12-21 | 游荣文 | Check mechanism for failure detector of sulphur hexafluoride electric equipment |
| CN202133649U (en) * | 2011-06-27 | 2012-02-01 | 常州爱特科技有限公司 | On-line SF6 gas purity analyzer |
| CN103293199B (en) * | 2013-05-21 | 2015-06-10 | 重庆大学 | Experimental device and method for testing gas-sensitive characteristics of titanium dioxide nanotube sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103675206A (en) * | 2013-11-27 | 2014-03-26 | 中国船舶重工集团公司第七一八研究所 | System for detecting sulfur hexafluoride |
Non-Patent Citations (2)
| Title |
|---|
| 《TiO2半导体薄膜的制备与气敏传感性质研究》;冯庆;《中国博士学位论文全文数据库 信息科技辑》;20091215(第12期);正文第45页倒数第2段、第48页倒数第3段，图2.47 |
| 《基于高温热裂解的SF6气体传感器性能研究》;杜海波 等.;《舰船防化》;20101231(第6期);第30页左栏倒数第3段到第31页左栏第1段，图1、图2 |
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