CN107356464A - Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas - Google Patents
Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas Download PDFInfo
- Publication number
- CN107356464A CN107356464A CN201710657366.XA CN201710657366A CN107356464A CN 107356464 A CN107356464 A CN 107356464A CN 201710657366 A CN201710657366 A CN 201710657366A CN 107356464 A CN107356464 A CN 107356464A
- Authority
- CN
- China
- Prior art keywords
- absorption cell
- admission line
- gas
- ejector
- absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention provides the upper end connection discharge duct of hydrolyzable Absorption of Fluoride device in a kind of sulfur hexafluoride gas, including absorption cell, admission line, discharge duct, input duct and removal waste fluid pipeline, wherein absorption cell, middle part connection admission line, is characterized in：Set up six-way valve, surge tank, gas circulator, liquid circulation pump, fluorine ion sensing device and ejector, the input of wherein ejector is respectively communicated with the outlet side of admission line and the output end of liquid circulation pump, the output end connection absorption cell of ejector, the import of six-way valve connects injection pump discharge, NaOH solution import and leakage fluid dram are also set on six-way valve respectively, the input of liquid circulation pump connects the bottom of absorption cell through magnetic valve；After surge tank and gas circulator concatenation, the inlet end of gas circulator and the outlet side of surge tank correspond to and connected with discharge duct and admission line, and fluorine ion sensing device is arranged on the lower end in absorption cell.The present invention can be such that fluoride fully quickly absorbs, excellent working performance.
Description
Technical field
The present invention provides hydrolyzable Absorption of Fluoride device in a kind of sulfur hexafluoride gas, belongs to power system detection technique
Field.
Technical background
《Industrial sulfur hexafluoride》(GB/T 12022-2014) proposes to hydrolyzable content of fluoride in sulfur hexafluoride gas
It is required that it specify that hydrolyzable is fluorinated object detecting method；《Hydrolyzable content of fluoride assay method in sulfur hexafluoride gas》(DL/T
The measuring method and absorption plant of hydrolyzable content of fluoride in sulfur hexafluoride gas 918-2005) are also specify that in detail, wherein
Absorption plant includes glass absorption bottle, NaOH absorbing liquids, suction line and bladders.The device is specifically needed using vibration absorption process
Assimilation effect manually is determined every the vibration dynamics of operator in 5min forced oscillation 1min, this method in 1h, so led
Caused absorption process laborious, and be not easy to absorb it is complete, assimilation effect can not real-time judgment, cause measurement result deviation compared with
Greatly.
The content of the invention
It is an object of the invention to provide one kind can overcome drawbacks described above, it is simple to operate, have in real time detection absorption process work(
Can, it is ensured that fluoride is absorbed hydrolyzable fluoride in complete sulfur hexafluoride gas in separate sources sulfur hexafluoride gas
Absorption plant.Its technical scheme is：
Hydrolyzable Absorption of Fluoride device in a kind of sulfur hexafluoride gas, including place vertically absorption cell, admission line,
The upper end connection of discharge duct, input duct and removal waste fluid pipeline, wherein absorption cell is provided with the discharge duct of 2 magnetic valves, in
Portion connects the admission line for being sequentially provided with pressure-reducing valve, pressure maintaining valve, flow sensor and 2 magnetic valves, it is characterised in that：Absorption cell
For pyramidal structure, volume 1000mL；The SF of admission line6Gas inlet flow is controlled in 0.5L/min, volume 0.5L, gas
Body pressure is 0.2MPa；Six-way valve, surge tank, gas circulator, liquid circulation pump, fluorine ion sensing device and ejector are set up,
Wherein ejector is serially connected in the outlet side of admission line, and another input of ejector is respectively communicated with liquid circulation pump through magnetic valve
Output end and six-way valve NaOH solution outlet, the input of liquid circulation pump connects the bottom of absorption cell through magnetic valve；Six
The import of port valve connects injection pump discharge, also sets NaOH solution import and leakage fluid dram on six-way valve respectively, it is corresponding connect input duct and
Removal waste fluid pipeline；After surge tank and gas circulator concatenation, the outlet side of the inlet end of gas circulator and surge tank it is corresponding with
Discharge duct is connected with admission line, and junction is respectively positioned between 2 magnetic valves on discharge duct and admission line, fluorine ion
Sensor is arranged on the lower end in absorption cell.
The present invention compared with prior art, the advantage is that：
1) ejector, gas circulator and liquid circulation pump are additionally arranged, sulfur hexafluoride gas to be absorbed and NaOH solution exist
The first absorption realized to fluoride is sufficiently mixed in ejector, thoroughly sulfur hexafluoride gas is then not yet absorbed and enters absorption
In pond, then ejector is reentered in the presence of gas circulator and surge tank, the NaOH of perfluoro-compound is absorbed in absorption cell
Mixed solution is also again introduced into ejector under the auxiliary of liquid circulation pump and valve, is sufficiently mixed pair with sulfur hexafluoride gas
Fluoride is absorbed.So repeatedly, it is ensured that fluoride can fully contact absorption with NaOH solution in sulfur hexafluoride gas,
Improve absorption efficiency.
2) fluorine ion sensing device is installed in absorption cell, monitors fluorinion concentration in absorbing liquid in real time, when tending towards stability,
Think to have absorbed completely.Now stop absorbing, avoid and the occurrence of complete is not absorbed in national standard method, and ensure difference
Fluoride in the sulfur hexafluoride gas in source is completely absorbed, and has broad applicability.
3) device accurately controls gas flow and volume, improves measurement accuracy.
4) device volume is compact, is easy to scene to carry out experiment work.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure：1st, absorption cell 2, admission line 3, discharge duct 4, input duct 5, removal waste fluid pipeline 6, magnetic valve
7th, pressure-reducing valve 8, pressure maintaining valve 9, flow sensor 10, six-way valve 11, surge tank 12, gas circulator 13, liquid circulation
Pump 14, fluorine ion sensing device 15, ejector 16, syringe pump 17, gas access 18, gas vent 19, NaOH solution enter
Mouth 20, waste liquid outlet
Embodiment
Technical solution of the present invention is described further with reference to embodiment.In the embodiment shown in fig. 1：Put vertically
The lower end of absorption cell 1 put is pyramidal structure, volume 1000mL.The upper end connection of absorption cell 1 is provided with the exhaust of 2 magnetic valves 6
Pipeline 3, middle part connect the air inlet for being sequentially provided with pressure-reducing valve 7, pressure maintaining valve 8,9,2 magnetic valves 6 of flow sensor and ejector 15
Pipeline 2, the SF of admission line 26Gas inlet flow is controlled in 0.5L/min, volume 0.5L, gas pressure 0.2MPa；Penetrate
Stream device 15 is serially connected in the outlet side of admission line 2, and another input of ejector 15 is respectively communicated with liquid circulation pump through magnetic valve 6
13 output end and the NaOH solution outlet of six-way valve 10, the input of liquid circulation pump 13 connect the bottom of absorption cell 1 through magnetic valve 6
Portion；NaOH solution flow control connects syringe pump 16 and exported in 10mL/min, volume 10mL, the import of six-way valve 10, six-way valve
NaOH solution import and the leakage fluid dram for connecting removal waste fluid pipeline 5, the liquid circulation pump of connection input duct 4 are further respectively had on 10
13 input connects the bottom of absorption cell 1 through magnetic valve 6；After surge tank 11 and gas circulator 12 concatenate, gas circulator
12 inlet end and the outlet side of surge tank 11 correspond to be connected with discharge duct 3 and admission line 2, and junction is respectively positioned on blast pipe
Between 2 magnetic valves 6 on road 3 and admission line 2, fluorine ion sensing device 14 is arranged on the lower end in absorption cell 1.
Assimilation effect and absorption efficiency for the checking present apparatus to hydrolyzable fluoride in sulfur hexafluoride gas, to Fig. 1 institutes
Show that embodiment has carried out 2 tasks measure, use simultaneously《Hydrolyzable content of fluoride assay method in sulfur hexafluoride gas》(DL/T
Method of testing, ion chromatograph have carried out absorption measurement to the acidity of same sulfur hexafluoride gas respectively in 918-2005).
Measure for the first time of the invention concretely comprises the following steps：
1) device cleans：Six-way valve 10 and liquid circulation pump 13 are opened, by controlling magnetic valve 6 to be injected from input duct 4
150mL deionized waters, absorption cell 1 is cleaned using liquid circulation pump 13.After 5 circulations, cleaning fluid is successively through six
Port valve 6 and removal waste fluid pipeline 5 are discharged.Repeat aforesaid operations 2 times, ensure noiseless impurity in absorption plant.Closing liquid circulates
Pump 13, six-way valve 10 and magnetic valve 6.
2) fluorine ion working curve is drawn：Compound concentration be respectively 0.000000316mol/L, 0.000001mol/L,
0.00001mol/L, 0.0001mol/L, 0.001mol/L, 0.01mol/L fluoride solution, above-mentioned 6 kinds of concentration fluorine ions are molten
Liquid by concentration from low to high successively from input duct 4 through six-way valve 10 to syringe pump 16 inject absorption cell 1, then with fluorine from
The current potential of above-mentioned fluoride solution that sub-electrode 14 is surveyed is respectively：-350mV、-325mV、-283mV、-223mV、-163mV、-
105mV；With-lgC ' linear regression is done to V, obtain fluorine ion working curve：Δ V=-54.66 × (- lgC ') -0.09589.
ΔV：Fluoride ion electrode current potential mV；
C’：Fluoride solution concentration mol/L.
3) NaOH absorbing liquids and sulfur hexafluoride gas are injected：Injected from input duct 4 to syringe pump 16 through six-way valve 10 dense
The NaOH solution for 0.01mol/L is spent, by the magnetic valve 6 on keyholed back plate road, NaOH solution is entered ejector 15, flow rate of liquid
For 10mL/min, volume 10mL；Meanwhile by the magnetic valve 6 on keyholed back plate road, make sulfur hexafluoride gas with 0.5L/min stream
Amount enters ejector 15 through admission line 2, and volume 0.5L, pressure 0.2MPa, NaOH absorbing liquid and sulfur hexafluoride gas exist
It is sufficiently mixed in ejector 15, the fluoride in sulfur hexafluoride gas obtains initial absorption.
4) Absorption of Fluoride：Gas circulator 12 and liquid circulation pump 13 are opened simultaneously, the NaOH for absorbing fluoride is molten
Liquid is pumped to ejector 15 again, while does not absorb sufficient sulfur hexafluoride gas from the discharge duct 3 of the upper end of absorption cell 1 through gas
Body circulation pump 12 enters surge tank 11, subsequently into ejector 15, makes NaOH absorbing liquids and sulfur hexafluoride gas in ejector 15
Absorption is inside sufficiently mixed, is gone round and begun again.Stop NaOH solution when fluorine ion sensing device detects value stabilization, sulfur hexafluoride gas follows
Ring, complete gas and absorb work, take 15min altogether, measure fluorinion concentration is 6.3 × 10-7mol/L。
Second of measure of the present invention concretely comprises the following steps：
1) device cleans：Six-way valve 10 and liquid circulation pump 13 are opened, by controlling magnetic valve 6 to be injected from input duct 4
150mL deionized waters, absorption cell 1 is cleaned using liquid circulation pump 13.After 5 circulations, cleaning fluid is successively through six
Port valve 6 and removal waste fluid pipeline 5 are discharged.Repeat aforesaid operations 2 times, ensure noiseless impurity in absorption plant.Closing liquid circulates
Pump 13, six-way valve 10 and magnetic valve 6.
2) fluorine ion working curve is drawn：Compound concentration be respectively 0.000000316mol/L, 0.000001mol/L,
0.00001mol/L, 0.0001mol/L, 0.001mol/L, 0.01mol/L fluoride solution, above-mentioned 6 kinds of concentration fluorine ions are molten
Liquid by concentration from low to high successively from input duct 4 through six-way valve 10 to syringe pump 16 inject absorption cell 1, then with fluorine from
The current potential of above-mentioned fluoride solution that sub-electrode 14 is surveyed is respectively：-350mV、-325mV、-283mV、-223mV、-163mV、-
105mV；With-lgC ' linear regression is done to V, obtain fluorine ion working curve：Δ V=-54.66 × (- lgC ') -0.09589.
ΔV：Fluoride ion electrode current potential mV；
C’：Fluoride solution concentration mol/L.
3) NaOH absorbing liquids and sulfur hexafluoride gas are injected：Injected from input duct 4 to syringe pump 16 through six-way valve 10 dense
The NaOH solution for 0.01mol/L is spent, by the magnetic valve 6 on keyholed back plate road, NaOH solution is entered ejector 15, flow rate of liquid
For 10mL/min, volume 10mL；Meanwhile by the magnetic valve 6 on keyholed back plate road, make sulfur hexafluoride gas with 0.5L/min stream
Amount enters ejector 15 through admission line 2, and volume 0.5L, NaOH absorbing liquid and sulfur hexafluoride gas are abundant in ejector 15
Mix, the fluoride in sulfur hexafluoride gas obtains initial absorption.
4) Absorption of Fluoride：Gas circulator 12 and liquid circulation pump 13 are opened simultaneously, the NaOH for absorbing fluoride is molten
Liquid is pumped to ejector 15 again, while does not absorb sufficient sulfur hexafluoride gas from the discharge duct 3 of the upper end of absorption cell 1 through gas
Body circulation pump 12 enters surge tank 11, subsequently into ejector 15, makes NaOH absorbing liquids and sulfur hexafluoride gas in ejector 15
Absorption is inside sufficiently mixed, is gone round and begun again.Stop NaOH solution when fluorine ion sensing device detects value stabilization, sulfur hexafluoride gas follows
Ring, complete gas and absorb work, take 15min altogether, measure fluorinion concentration is 6.5 × 10-7mol/L。
Detailed comparisons' data of above-mentioned four measure see the table below.
| Title | Time-consuming/min | Measurement result (mol/L) |
| Present invention measure 1 | 15 | 6.3×10-7 |
| Present invention measure 2 | 15 | 6.5×10-7 |
| DL/T 916-2005 methods | 81 | 4.6×10-7 |
| Ion chromatograph | 90 | 6.6×10-7 |
Test result shows：To same sulfur hexafluoride gas, it is only DL/T 916-2005 methods that the present invention, which absorbs time-consuming,
1/5th, measurement result is close with ion chromatograph, and assimilation effect and measurement accuracy are also much better than DL/T 916-2005
Method of testing.
Claims (1)
1. hydrolyzable Absorption of Fluoride device in a kind of sulfur hexafluoride gas, including absorption cell (1), the admission line placed vertically
(2) the upper end connection of, discharge duct (3), input duct (4) and removal waste fluid pipeline (5), wherein absorption cell (1) is provided with 2 electromagnetism
The discharge duct (3) of valve (6), middle part connection are sequentially provided with pressure-reducing valve (7), pressure maintaining valve (8), flow sensor (9) and 2 electromagnetism
The admission line (2) of valve (6), it is characterised in that：Absorption cell (1) is pyramidal structure, volume 1000mL；Admission line (2)
SF6Gas inlet flow is controlled in 0.5L/min, volume 0.5L, gas pressure 0.2MPa；Set up six-way valve (10), buffering
Tank (11), gas circulator (12), liquid circulation pump (13), fluorine ion sensing device (14), ejector (15) and syringe pump (16),
Wherein ejector (15) is serially connected in the outlet side of admission line (2), and another input of ejector (15) is through magnetic valve (6) difference
Connect the output end of liquid circulation pump (13) and the NaOH solution outlet of six-way valve (10), the input warp of liquid circulation pump (13)
The bottom of magnetic valve (6) connection absorption cell (1)；The import of six-way valve (10) connects syringe pump (16) outlet, is gone back on six-way valve (10)
NaOH solution import and waste liquid leakage fluid dram are set respectively, it is corresponding to connect input duct (4) and removal waste fluid pipeline (5)；Surge tank (11) and
After gas circulator (12) concatenation, the inlet end of gas circulator (12) connects with discharge duct (3), the outlet of surge tank (11)
End is connected with discharge duct (3), and junction is respectively positioned between 2 magnetic valves (6) on discharge duct (3) and admission line (2),
Fluorine ion sensing device (14) is arranged on the lower end in absorption cell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657366.XA CN107356464A (en) | 2017-08-03 | 2017-08-03 | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657366.XA CN107356464A (en) | 2017-08-03 | 2017-08-03 | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107356464A true CN107356464A (en) | 2017-11-17 |
Family
ID=60287382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710657366.XA Pending CN107356464A (en) | 2017-08-03 | 2017-08-03 | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107356464A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018417A (en) * | 2012-12-12 | 2013-04-03 | 江苏省特种设备安全监督检验研究院 | Boiler water quality detection device based on flow injection analysis and soft-measuring technology |
| CN104028100A (en) * | 2013-12-04 | 2014-09-10 | 刘少军 | Absorption technology of oxynitride gas at normal pressure and apparatus |
| CN104792723A (en) * | 2015-04-21 | 2015-07-22 | 国家电网公司 | Absorption device and method of mineral oil in sulfur hexafluoride gas |
| CN104792365A (en) * | 2015-04-21 | 2015-07-22 | 国家电网公司 | Sulfur hexafluoride gas quality field integrated detector and detection method |
| CN104807963A (en) * | 2015-04-21 | 2015-07-29 | 国家电网公司 | Device and method for detecting acidity of sulfur hexafluoride gas |
| CN204632227U (en) * | 2015-03-19 | 2015-09-09 | 浙江天煌科技实业有限公司 | A kind of atmosphere environment supervision and Treatment process comprehensive training system |
| CN204710085U (en) * | 2015-04-21 | 2015-10-21 | 国家电网公司 | Sulfur hexafluoride gas middle acid substance and hydrolyzable Absorption of Fluoride device |
| CN207019984U (en) * | 2017-08-03 | 2018-02-16 | 国网安徽省电力公司电力科学研究院 | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas |
-
2017
- 2017-08-03 CN CN201710657366.XA patent/CN107356464A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018417A (en) * | 2012-12-12 | 2013-04-03 | 江苏省特种设备安全监督检验研究院 | Boiler water quality detection device based on flow injection analysis and soft-measuring technology |
| CN104028100A (en) * | 2013-12-04 | 2014-09-10 | 刘少军 | Absorption technology of oxynitride gas at normal pressure and apparatus |
| CN204632227U (en) * | 2015-03-19 | 2015-09-09 | 浙江天煌科技实业有限公司 | A kind of atmosphere environment supervision and Treatment process comprehensive training system |
| CN104792723A (en) * | 2015-04-21 | 2015-07-22 | 国家电网公司 | Absorption device and method of mineral oil in sulfur hexafluoride gas |
| CN104792365A (en) * | 2015-04-21 | 2015-07-22 | 国家电网公司 | Sulfur hexafluoride gas quality field integrated detector and detection method |
| CN104807963A (en) * | 2015-04-21 | 2015-07-29 | 国家电网公司 | Device and method for detecting acidity of sulfur hexafluoride gas |
| CN204710085U (en) * | 2015-04-21 | 2015-10-21 | 国家电网公司 | Sulfur hexafluoride gas middle acid substance and hydrolyzable Absorption of Fluoride device |
| CN207019984U (en) * | 2017-08-03 | 2018-02-16 | 国网安徽省电力公司电力科学研究院 | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103091152B (en) | For automatic dilution system and the automatic dilution method of in-line analyzer | |
| CN203525677U (en) | Aerosol generator | |
| CN202238756U (en) | Wet-process cleaning equipment | |
| CN202330075U (en) | Liquid container bypass continuous sampling device | |
| CN207019984U (en) | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas | |
| CN203881499U (en) | Leak detection device for firefighting bottle | |
| CN201477086U (en) | Full-automatic vacuum degasser | |
| CN102989711B (en) | Impurity collecting device for oil sprayer | |
| CN110187138A (en) | Sample needle cleaning solution drainage system for in-vitro diagnosis equipment | |
| CN107356464A (en) | Hydrolyzable Absorption of Fluoride device in sulfur hexafluoride gas | |
| CN207307588U (en) | Sulfur hexafluoride gas middle acid substance absorption plant | |
| CN109294890A (en) | Microbial fermentation multi-component online analysis device and use method thereof | |
| CN102778383B (en) | Automatic solution diluting equipment | |
| CN105344141A (en) | Suction filtration device for laboratory | |
| CN107561209A (en) | Sulfur hexafluoride gas acidity detection method and device | |
| CN108414338A (en) | A kind of bubble evenly mixing device | |
| CN203908855U (en) | Diluting and mixing device of automatic online sample and chromatographic analysis instrument | |
| CN206508824U (en) | Gas-fluid mixing systems | |
| CN105259260A (en) | Novel transformer oil chromatography online monitoring device with three-way valve | |
| CN105445484A (en) | Flow injection analysis apparatus with exhausting function and exhausting method for flow injection analysis | |
| CN205815440U (en) | A kind of online micro-water treatment facilities of SF6 electrical equipment | |
| CN204912267U (en) | A automation equipment for repairing pollute soil | |
| CN212757369U (en) | A syringe pump bubble removal device for instrument analysis | |
| CN107389589A (en) | Detection absorption plant for sulfur hexafluoride gas | |
| CN209820765U (en) | Pressure testing device for valve production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171117 |
|
| WD01 | Invention patent application deemed withdrawn after publication |