CN107321160A - Sulfur hexafluoride gas middle acid substance absorption plant - Google Patents
Sulfur hexafluoride gas middle acid substance absorption plant Download PDFInfo
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- CN107321160A CN107321160A CN201710656441.0A CN201710656441A CN107321160A CN 107321160 A CN107321160 A CN 107321160A CN 201710656441 A CN201710656441 A CN 201710656441A CN 107321160 A CN107321160 A CN 107321160A
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- admission line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention provides a kind of sulfur hexafluoride gas middle acid substance absorption plant, including absorption cell, admission line, discharge duct, input duct and removal waste fluid pipeline, it is characterised in that:Set up and liquid level sensor and pH electrodes are provided with six-way valve, titration cell and surge tank, titration cell, top is connected with the bottom of absorption cell;Outside of the admission line at absorption cell is provided with gas circulator, and the end that admission line probes into lower end in absorption cell is provided with gas tip;Top in absorption cell is provided with atomizer, the liquid feeding end of atomizer passes through the input duct provided with liquid circulation pump and magnetic valve and is respectively communicated with the bottom of titration cell and the NaOH solution outlet of six-way valve, the import of six-way valve connects also sets NaOH solution import and leakage fluid dram respectively on injection pump discharge, six-way valve;The inlet, outlet end of surge tank is connected with discharge duct and admission line respectively.The present invention can fully absorb acidic materials, and can realize real-time monitoring and control, excellent working performance.
Description
Technical field
The present invention provides a kind of sulfur hexafluoride gas middle acid substance absorption plant, belongs to power system detection technique field
Technical background
In the electrical apparatus, sulfur hexafluoride gas can decompose under the conditions of electrion, produce plurality of impurities, these are miscellaneous
Matter reacts with the micro-moisture in sulfur hexafluoride gas, produces acid or acidic materials.Acid in sulfur hexafluoride gas
Metal parts and insulating materials to electrical equipment are caused corrosion by matter, directly affect the machinery of equipment, conductive and insulating properties
Can, the safe operation of electrical equipment can be influenceed when serious, so needing to absorb the acidic materials in sulfur hexafluoride gas
Detection.The Chinese patent of Patent No. " CN2015202422065 " discloses sulfur hexafluoride gas middle acid substance and hydrolyzable
Absorption of Fluoride device, its technical scheme is:Including the gas absorption cell equipped with absorbing liquid, gas absorption cell is placed vertically
Slim-lined construction, absorbing liquid is certain density NaOH solution, and the bottom of gas absorption cell is connected with air inlet, and top is connected with row
Gas port and pressure detector.The utility model has the characteristics of easy to operate, absorption efficiency is high, solution usage is few, and defect is:1、
Without detection absorption process function in real time, it is difficult to ensure fully absorbing and accurately examining for sulfur hexafluoride gas middle acid substance
Survey the volume of measured sulfur hexafluoride gas;2) sulfur hexafluoride gas is relied solely on from gas absorption cell bottom to enter, by NaOH
Solution is absorbed, and absorption efficiency is needed further improvement and improved.
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, with real-time detection absorption process work(
Can, it is ensured that separate sources sulfur hexafluoride gas middle acid substance is inhaled by complete sulfur hexafluoride gas middle acid substance is absorbed
Receiving apparatus.Its technical scheme is:
A kind of sulfur hexafluoride gas middle acid substance absorption plant, including place vertically absorption cell, admission line, exhaust
Discharge duct of the upper end connection provided with 2 magnetic valves of pipeline, input duct and removal waste fluid pipeline, wherein absorption cell, lower end connects
The logical 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 is cone
Shape structure, volume is 1000mL;Set up and liquid level sensor and pH electrodes be provided with six-way valve, titration cell and surge tank, titration cell,
Top is connected with the bottom of absorption cell;The charge flow rate of admission line is controlled in 2L/min, and volume is 2L, and gas pressure is
0.5MPa, outside of the admission line at absorption cell is provided with gas circulator, and the end that admission line is probeed into absorption cell is set
There is gas tip, gas tip upward sprays sulfur hexafluoride gas the circular cone air curtain to form that cone angle is 90 degree;In absorption cell
Top is provided with atomizer, for NaOH solution to be atomized, and its equivalent grain size is 66 μm, and injection downwards forms cone angle for 95 degree
Circular cone liquid curtain, pressure 0.03MPa, flow 0.16L/min, the liquid feeding end of atomizer, which is passed through, is provided with liquid circulation pump and magnetic valve
Input duct be respectively communicated with the bottom of titration cell and the NaOH solution outlet of six-way valve, the common inlet of six-way valve connects injection
NaOH solution import and leakage fluid dram are also set on pump discharge, six-way valve respectively;The inlet, outlet end of surge tank respectively with discharge duct and
Admission line is connected, and junction is respectively positioned between 2 magnetic valves on discharge duct and admission line.
The present invention compared with prior art, the advantage is that:
1) absorption cell, NaOH solution loop module, gas circulation module and gas tip with atomizer are provided with,
Absorption cell uses conical design, and absorption process uses absorbing liquid to be sprayed with top atomizing type at the top of absorption cell, and is absorbing
Bottom of pond portion collects, and is sprayed again from top;Sulfur hexafluoride gas is sprayed from absorption cell bottom by gas tip, and such a mode can
Ensure that sulfur hexafluoride gas middle acid substance is quickly absorbed;Sulfur hexafluoride gas after absorption enters gas from base bleed mouthful
Pump, sprays from absorption cell bottom, into surge tank again.So repeatedly, it is ensured that sulfur hexafluoride gas middle acid substance can
Absorption is fully contacted with NaOH solution, absorption efficiency is improved.
2) pH electrodes are installed, acidity in monitoring absorbing liquid, acidic materials are thought when tending towards stability in real time in titration cell
Absorb and finished.Now stop absorbing, it is to avoid the occurrence of in national standard method without absorbing complete, and ensure separate sources
Sulfur hexafluoride gas in acidic materials be completely absorbed, with 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, titration cell 12, surge tank 13, liquid level sensor
14th, pH electrodes 15, gas circulator 16, gas tip 17, atomizer 18, syringe pump, 19, liquid circulation pump
Embodiment
Technical solution of the present invention is described further with reference to embodiment.In the embodiment shown in fig. 1:Absorption cell
1 is pyramidal structure, and volume is 1000mL, discharge duct 3 of the upper end connection provided with 2 magnetic valves 6 of absorption cell 1, lower end connection
It is sequentially provided with the admission line 2 of pressure-reducing valve 7, pressure maintaining valve 8, flow sensor 9 and 2 magnetic valves 6.Liquid level is provided with titration cell 11
Sensor 13 and pH electrodes 14, top is connected with the bottom of absorption cell 1.The charge flow rate of admission line 2 is controlled in 2L/min, body
Product is 2L, and gas pressure is 0.5MPa, and outside of the admission line 2 at absorption cell 1 is provided with gas circulator 15, air inlet pipe
The end that road 2 is probeed into absorption cell 1 is provided with gas tip 16, and sulfur hexafluoride gas is sprayed to form cone angle by gas tip 16 upward
For 90 degree of circular cone air curtain, gas circulation flow control is in 1.6L/min.Top in absorption cell 1 is provided with atomizer 17, uses
In by NaOH solution atomizations, its equivalent grain size is 66 μm, and injection downwards forms the circular cone liquid curtain that cone angle is 95 degree, pressure
0.03MPa, flow 0.16L/min, the liquid feeding end of atomizer 17 pass through the input duct provided with liquid circulation pump 19 and magnetic valve 6
4 are respectively communicated with the NaOH solution outlet of the bottom of titration cell 11 and six-way valve 10.The common inlet of six-way valve 10, which connects, to be filled
The syringe pump 18 of NaOH solution is exported, and also sets NaOH solution import and leakage fluid dram on six-way valve 10 respectively;The entering of surge tank 12,
Outlet side is connected with discharge duct 3 and admission line 2 respectively, and junction is respectively positioned on 2 on discharge duct 3 and admission line 2
Between magnetic valve 6.
Job step is:
1) device is cleaned:Six-way valve 10, magnetic valve 6 and liquid circulation pump 19 are opened, 150mL is injected by input duct 4
Deionized water, is cleaned using liquid circulation pump 19 to absorption cell 1.After repeatedly circulation, cleaning fluid is successively through six-way valve 6
Discharged with removal waste fluid pipeline 5.Repeat aforesaid operations 2 times, it is ensured that noiseless impurity in absorption detecting device.Closing liquid circulating pump
19th, six-way valve 10 and magnetic valve 6.
2) NaOH absorbing liquids are injected:Injected successively through six-way valve 10 and input duct 4 into absorption cell 1 from syringe pump 18
150mL concentration is 0.01mol/L NaOH solution.
3) sulfur hexafluoride gas is added:Sulfur hexafluoride gas is through pressure-reducing valve 7, pressure maintaining valve 8, flow sensor 9, magnetic valve 6
Into surge tank 12, the control of sulfur hexafluoride gas flow is 2L/min, and volume is 2L, and pressure is 0.5MPa, and surge tank 13 is resistant to
Pressure is 0.6MPa, and volume is 2L.
4) acidic materials absorb:Gas circulator 15, liquid circulation pump 19 are opened simultaneously, and NaOH solution is through input duct 4
Under the spray of atomizer 17, atomization equivalent grain size is 66 μm, and spray angles are 95 degree, and Stress control is in 0.03MPa, flow control
For 0.12L/min;At the same time, sulfur hexafluoride gas from surge tank 12 successively through gas circulator 15 and gas tip 16, from
The bottom of absorption cell 1 sprays, and spray-cone angle is 90 degree, and flow velocity is 1.6L/min;The absorbing liquid of formation collects stream in the bottom of absorption cell 1
Enter titration cell 11, using the monitoring absorption liquid pH value changes in real time of pH electrodes 14, when absorption liquid pH value stabilization stops NaOH in 7.7 when
Solution, sulfur hexafluoride gas circulation, complete gas absorption work, 7min are taken altogether.
Assimilation effect, absorption efficiency for the checking present apparatus to sulfur hexafluoride gas middle acid substance, are used《Sulfur hexafluoride gas
Body acidometry》Acidity of the method for testing respectively to above-mentioned sulfur hexafluoride gas is absorbed in (DL/T 916-2005)
Determine, take and amount to 21min, pH value is that 7.9 detailed comparisons' data see the table below.
Title | Time-consuming/min | Assimilation effect |
Embodiment 1 | 7 | 7.80 |
DL/T 916-2005 methods | 21 | 7.86 |
Test result shows:To same sulfur hexafluoride gas, it is only DL/T 916-2005 methods that the present invention, which absorbs time-consuming,
1/3rd, assimilation effect is also much better than DL/T 916-2005 method of testings.
Claims (1)
1. a kind of sulfur hexafluoride gas middle acid substance absorption plant, including place vertically absorption cell (1), admission line (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 magnetic valves
(6) discharge duct (3), lower end connection is sequentially provided with pressure-reducing valve (7), pressure maintaining valve (8), flow sensor (9) and 2 magnetic valves
(6) admission line (2), it is characterised in that:Absorption cell (1) is pyramidal structure, and volume is 1000mL;Set up six-way valve (10),
Liquid level sensor (13) and pH electrodes (14) are provided with titration cell (11) and surge tank (12), titration cell (11), top is with absorbing
The bottom connection in pond (1);The charge flow rate of admission line (2) is controlled in 2L/min, and volume is 2L, and gas pressure is 0.5MPa,
Admission line (2) is provided with gas circulator (15) close to the outside at absorption cell (1) place, and admission line (2) is probeed into absorption cell (1)
End be provided with gas tip (16), gas tip (16) upward sprays sulfur hexafluoride gas that to form cone angle be 90 degree of circular cone
Air curtain;Top in absorption cell (1) is provided with atomizer (17), for NaOH solution to be atomized, and its equivalent grain size is 66 μm, and
Injection downwards forms the circular cone liquid curtain that cone angle is 95 degree, pressure 0.03MPa, flow 0.16L/min, the feed liquor of atomizer (17)
End is respectively communicated with the bottom of titration cell (11) and six through the input duct (4) provided with liquid circulation pump (19) and magnetic valve (6) and led to
The NaOH solution outlet of valve (10), the common inlet of six-way valve (10) connects syringe pump (18) outlet, and six-way valve also divides on (10)
NaOH solution import and leakage fluid dram are not set;The inlet, outlet end of surge tank (12) respectively with discharge duct (3) and admission line (2)
Connection, junction is respectively positioned between 2 magnetic valves (6) on discharge duct (3) and admission line (2).
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CN201710656441.0A CN107321160A (en) | 2017-08-03 | 2017-08-03 | Sulfur hexafluoride gas middle acid substance absorption plant |
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CN201710656441.0A Pending CN107321160A (en) | 2017-08-03 | 2017-08-03 | Sulfur hexafluoride gas middle acid substance absorption plant |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113663478A (en) * | 2021-08-07 | 2021-11-19 | 中国船舶重工集团公司第七一九研究所 | Gas-liquid mixing absorption system |
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CN104028100A (en) * | 2013-12-04 | 2014-09-10 | 刘少军 | Absorption technology of oxynitride gas at normal pressure and apparatus |
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 |
CN205861125U (en) * | 2016-03-23 | 2017-01-04 | 中国石油大学(北京) | A kind of measure the device of fluid flow in compact rock core |
CN207307588U (en) * | 2017-08-03 | 2018-05-04 | 国网安徽省电力公司电力科学研究院 | Sulfur hexafluoride gas middle acid substance absorption plant |
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2017
- 2017-08-03 CN CN201710656441.0A patent/CN107321160A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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 |
CN205861125U (en) * | 2016-03-23 | 2017-01-04 | 中国石油大学(北京) | A kind of measure the device of fluid flow in compact rock core |
CN207307588U (en) * | 2017-08-03 | 2018-05-04 | 国网安徽省电力公司电力科学研究院 | Sulfur hexafluoride gas middle acid substance absorption plant |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113663478A (en) * | 2021-08-07 | 2021-11-19 | 中国船舶重工集团公司第七一九研究所 | Gas-liquid mixing absorption system |
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