CN107485978A - Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device and method - Google Patents
Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device and method Download PDFInfo
- Publication number
- CN107485978A CN107485978A CN201710561349.6A CN201710561349A CN107485978A CN 107485978 A CN107485978 A CN 107485978A CN 201710561349 A CN201710561349 A CN 201710561349A CN 107485978 A CN107485978 A CN 107485978A
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- sulfur hexafluoride
- mixed gas
- vacuum
- 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
-
- 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
- B01D53/22—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 by diffusion
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/45—Compounds containing sulfur and halogen, with or without oxygen
- C01B17/4507—Compounds containing sulfur and halogen, with or without oxygen containing sulfur and halogen only
- C01B17/4515—Compounds containing sulfur and halogen, with or without oxygen containing sulfur and halogen only containing sulfur and fluorine only
- C01B17/453—Sulfur hexafluoride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/0438—Physical processing only by making use of membranes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Gas-Insulated Switchgears (AREA)
- Treating Waste Gases (AREA)
Abstract
Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device, including pass sequentially through mixed gas air inlet, first pressure table, the first valve, unstrpped gas input power system, the first check valve, gas pretreatment system, the second valve, second pressure gauge, separation system of mixed gas, the 3rd pressure gauge, the 3rd valve, product gas recovery system, the 4th valve, the 4th pressure gauge and the sulfur hexafluoride gas gas outlet of gas withdrawal line connection；Mixed gas circulation line is also associated between gas separation system and gas pretreatment system, gas separation system is connected with exhaust emission tube road.The invention also discloses a kind of sulfur hexafluoride and the recovery process for separation and purification of nitrogen mixed gas recovery separating-purifying device.The present invention realizes SF6/N2The separating-purifying of mixed gas, contributes to SF6/N2Mix insulation gas replaces pure SF6The popularization of gas, reduce SF6Gas usage amount, there are great economy and environmental benefit, also energetically promoted the construction of national green power network.
Description
Technical field
The invention belongs to sulfur hexafluoride gas purification technique field, more particularly to a kind of sulfur hexafluoride and nitrogen mixing
Gas reclaims separating-purifying device and method.
Background technology
Sulfur hexafluoride（SF6）Gas is a kind of sufficiently stable gas of chemical property, as a kind of excellent insulation and is gone out
Arc medium, it is widely used in various electrical equipments.But SF6Gas also has its weak point in the application：（1）To electric field
Uniformity coefficient is more sensitive, and its advantage only can be just shown in uniform or slightly uneven electric field；（2）SF6Gas be by
It is included in《The Kyoto Protocol》With《Bali's route map》In greenhouse gases, its greenhouse effects is equivalent CO2Gas
23900 times, and SF6Gas can be stabilized up to 3200 in an atmosphere；（3）SF6The price of gas is higher etc..Thus
Its application is limited, and is finding SF at present6Before gas substitute, SF is utilized6Mixed gas replaces pure SF6Gas is
More effective method.To solve the greenhouse effects of SF6 gases and becoming increasingly conspicuous for the easy Liquefaction of low temperature, SF6/N2, SF6/
The mix insulation gas such as CF4 is considered as substitute medium most promising at present
By being considered to environment and economic aspect, due to N2Non-hazardous and the reason such as cheap, use SF6/N2Gaseous mixture
Body replaces high-purity SF6Gas is as the trend that dielectric is green electric power supply development.Research papers show, in N2Middle note
After entering 20%~30% SF6 gases, SF6/N2Mixed gas insulation performance indications can reach pure SF680% or so of gas；Again
It is reported that SF6（30%）With N2(70%) hybrid gas insulation switchgear has been included in State Grid Corporation of China and south electric network is public
Take charge of in the project of SF6 mixed gas high voltage electric equipment projects.
SF6/N2Mixed gas electrical equipment unavoidably needs to carry out repair and maintenance work in the process of running, and is examining
SF during repairing6、N2The work such as the recovery storage of mixed gas and isolation of purified is also to carry out.
With the trend of China SF6/N2 mix insulation outlet openings equipment developments, the separating-purifying of SF6/N2 mixed gas
Technology is also put on using schedule.SF6/N2 mixed gas separation method mainly has cryogenic rectification method, PSA methods at present（Pressure-variable adsorption
Method）And membrane separating method.Cryogenic rectification method is applied to the SF6 gases or mixed gas of processing high concentration, handles low mixing ratio
Because the process conditions such as required temperature, pressure are higher during SF6/N2 mixed gas, equipment build is larger, is not suitable for SF6/N2
Gas quick separating recovery process during mix insulation gas site examining and repairing, and the recovery of its mixed gas separates with mixed gas
Flow is performs stage by stage, and gas recovery can not be carried out simultaneously with separation phase, and gas on-site treatment effeciency is relatively low, so unsuitable
Using；PSA methods have been commercially used for separating oxygen from air, and Technical comparing is ripe, but handle SF6 gas contents and compare
During low SF6/N2 mixed gas, when recovery it is resulting SF6 gas concentrations it is not high, storage can not be compressed and liquefied；Second, PSA
Need to regenerate after its pressure-swing absorption apparatus saturation during method in-situ processing, so also not recommending onsite application.And utilize membrane technology point
From SF6/N2 mixed gas, it can be very good solve the problem.
The content of the invention
For the present invention in order to solve weak point of the prior art, the present invention provides a kind of sulfur hexafluoride and nitrogen mixture
Body reclaims separating-purifying device and method, and it can be by the SF after separation6Concentration is improved to 90%（Volume ratio）More than, and separate
The N emitted2Middle SF6Content is less than 1000ppm；High concentration SF after separating-purifying6Gas be easy to compress and liquefy storage and
For SF6The purification of gas, which recycles, provides facility.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：Sulfur hexafluoride and nitrogen mixed gas recovery
Separating-purifying device, including pass sequentially through the mixed gas air inlet, first pressure table, the first valve of gas withdrawal line connection
Door, unstrpped gas input power system, the first check valve, gas pretreatment system, the second valve, second pressure gauge, gaseous mixture
Body piece-rate system, the 3rd pressure gauge, the 3rd valve, product gas recovery system, the 4th valve, the 4th pressure gauge and sulfur hexafluoride
Gas outlet；
The 5th pressure gauge and thermometer are connected with gas pretreatment system；
Mixed gas circulation line, gas separation system connection are also associated between gas separation system and gas pretreatment system
There is exhaust emission tube road.
On mixed gas circulation line the 5th is disposed with by the direction of gas separation system to gas pretreatment system
Valve, recyclegas dynamical system and the second check valve.
Also including pumped vacuum systems, pumped vacuum systems includes vavuum pump, the first vacuum-pumping pipeline and the second vacuum-pumping pipeline,
The bleeding point of first vacuum-pumping pipeline is connected with product gas recovery system, and the bleeding point of the second vacuum-pumping pipeline is connected to the 4th
On gas withdrawal line between valve and the 4th pressure gauge, the 6th valve is provided with the first vacuum-pumping pipeline, second takes out very
The 7th valve is provided with blank pipe road, the bleeding point of the gas outlet and vacuum of the first vacuum-pumping pipeline and the second vacuum-pumping pipeline connects
Connect, the bleeding point of vavuum pump is provided with the 6th pressure gauge.
Exhaust emission tube curb airflow direction is disposed with the 8th valve, exhaust treatment system and exhaust port.
The recovery process for separation and purification of sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device, including following step
Suddenly,
（1）, mixed gas air inlet is connected with the exhaust outlet of sulfur hexafluoride and nitrogen mix insulation outlet openings equipment, by six
Sulfur fluoride gas outlet is connected with the air inlet of sulfur hexafluoride external container or sulfur hexafluoride external pipeline；
（2）, open the 6th valve and the 7th valve, start vavuum pump at least 30 minutes, by the first vacuum-pumping pipeline to product
Vacuumized inside gas recovery system, by the second vacuum-pumping pipeline to sulfur hexafluoride external container or sulfur hexafluoride extension tube attached
Road vacuumizes；
（3）, close vavuum pump, the 6th valve and the 7th valve, open the first valve, the second valve, the 3rd valve, the 4th valve
Door, the 5th valve and the 8th valve, start unstrpped gas input power system, gas pretreatment system, mixed gas segregative line
System and recyclegas dynamical system, sulfur hexafluoride and nitrogen mixed gas enter gas recovery pipe by mixed gas air inlet
Road, first by the first valve regulated charge flow rate, then by unstrpped gas input power system, through check valve, to determine
Pressure enter gas pretreatment system, dust floccule, SF6 catabolites in gas pretreatment system processing mixed gas
And moisture, dust processing accuracy can reach 0.01 μm, and unstrpped gas is heated up to specified temperature 45 C, then adjust again
Two valves, gas separation system is entered with stable pressure, flow；
Gas separation system uses gaseous jet simulation principle, passes through unstrpped gas input power system, gas pretreatment system,
One valve and the second valve cause feedstock gas pressures, temperature, flow to reach the requirement of gas separation system process conditions；
Sulfur hexafluoride and nitrogen mixed gas are entered with specified pressure, temperature, flow by gas separation system raw material gas inlet,
After gas separation system separates, mixed gas is divided into three road gases：Tail gas, product gas and recyclegas, tail gas it is main into
It is divided into nitrogen, contains micro sulfur hexafluoride gas；The principal component of recyclegas is nitrogen and sulfur hexafluoride gas, sulfur hexafluoride
Gas accounting is more than 50%；The principal component of product gas is sulfur hexafluoride gas, concentration >=90% of sulfur hexafluoride gas；
Recyclegas is exported by the circulating air of gas separation system, through the 5th valve, recyclegas dynamical system, second unidirectional
Valve enters gas pretreatment system, rejoins mixed gas separation process；
Tail gas is entered in exhaust treatment system, through exhaust treatment system by gas separation system offgas outlet through the 8th valve
Processing it is up to standard after discharged by exhaust port, its discharge gas in sulfur hexafluoride content be less than 1000ppm；
Product gas is by the product gas outlet of gas separation system, through the 3rd valve, product gas recovery system, the 4th valve
Afterwards, the high concentration sulfur hexafluoride product gas after mixed gas is separated is reclaimed and stored into external hexafluorated sulphur vessel；
（4）, after the registration of first pressure table is less than 5000Pa, represent sulfur hexafluoride and nitrogen mix insulation outlet openings equipment
Middle mixed gas is pumped, and is closed and is opened the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve and the 8th valve
Door, close unstrpped gas input power system, gas pretreatment system, separation system of mixed gas and recyclegas dynamical system
System, reclaim the separating-purifying end of job.
Using above-mentioned technical proposal, the present invention can handle SF6Volume ratio is 0-60% SF6/N2Mixed gas,
To cause SF6Product gas concentration reaches 90%（Volume ratio）More than, and N2 floss holes SF6Content is less than 1000ppm.The present invention realizes
SF6/N2The separating-purifying of mixed gas, working condition requirement is high when overcoming cryogenic rectification method separation, SF when PSA methods separate6Purity
The problems such as not high enough.So that SF6/N2Mixed gas solves the problem of live quick recovery separation and recovery in application process.
Contribute to SF6/N2Mix insulation gas replaces pure SF6The popularization of gas, reduce SF6Gas usage amount, there are great economy and ring
Border benefit, the construction of national green power network is also energetically promoted.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
As shown in figure 1, sulfur hexafluoride and nitrogen mixed gas the recovery separating-purifying device of the present invention, including pass sequentially through
The mixed gas air inlet 1 of gas withdrawal line connection, first pressure table 2, the first valve 3, unstrpped gas input power system
4th, the first check valve 5, gas pretreatment system 6, the second valve 7, second pressure gauge 8, separation system of mixed gas the 9, the 3rd are pressed
Power table 27, the 3rd valve 10, product gas recovery system 11, the 4th valve 12, the 4th pressure gauge 13 and sulfur hexafluoride gas go out
Gas port 14；
The 5th pressure gauge 15 and thermometer 16 are connected with gas pretreatment system 6；
Mixed gas circulation line is also associated between gas separation system and gas pretreatment system 6, gas separation system connects
It is connected to exhaust emission tube road.
On mixed gas circulation line the 5th is disposed with by the direction of gas separation system to gas pretreatment system 6
Valve 17, the check valve 19 of recyclegas dynamical system 18 and second.
Present invention additionally comprises pumped vacuum systems, pumped vacuum systems includes vavuum pump 20, the first vacuum-pumping pipeline and second is taken out
Vacuum line, the bleeding point of the first vacuum-pumping pipeline are connected with product gas recovery system 11, the pumping of the second vacuum-pumping pipeline
Mouthful it is connected on the gas withdrawal line between the 4th valve 12 and the 4th pressure gauge 13, the is provided with the first vacuum-pumping pipeline
Six valves 21, are provided with the 7th valve 22 in the second vacuum-pumping pipeline, and the first vacuum-pumping pipeline and the second vacuum-pumping pipeline go out
Gas port and the bleeding point of vacuum connect, and the bleeding point of vavuum pump 20 is provided with the 6th pressure gauge 23.
Exhaust emission tube curb airflow direction is disposed with the 8th valve 24, exhaust treatment system 25 and exhaust port
26；
The recovery process for separation and purification of sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device, comprises the following steps,
（1）, mixed gas air inlet 1 is connected with the exhaust outlet of sulfur hexafluoride and nitrogen mix insulation outlet openings equipment, will
Sulfur hexafluoride gas gas outlet 14 is connected with the air inlet of sulfur hexafluoride external container or sulfur hexafluoride external pipeline；
（2）, open the 6th valve 21 and the 7th valve 22, start vavuum pump 20 at least 30 minutes, pass through the first vacuum-pumping pipeline
To being vacuumized inside product gas recovery system, by the second vacuum-pumping pipeline to sulfur hexafluoride external container or sulfur hexafluoride
External pipeline vacuumizes；
（3）, close vavuum pump 20, the 6th valve 21 and the 7th valve 22, open the first valve 3, the second valve 7, the 3rd valve
10th, the 4th valve 12, the 5th valve 17 and the 8th valve 24, unstrpped gas input power system 4, gas pretreatment system are started
6th, separation system of mixed gas 9 and recyclegas dynamical system 18, sulfur hexafluoride and nitrogen mixed gas are by mixed gas air inlet
Mouth 1 enters gas withdrawal line, adjusts charge flow rate by the first valve 3 first, then passes through unstrpped gas input power
System 4, through check valve, gas pretreatment system 6 is entered with the pressure of determination, gas pretreatment system 6 is handled in mixed gas
Dust floccule, SF6 catabolites and moisture, dust processing accuracy can reach 0.01 μm, and unstrpped gas is heated up into volume
Fixed temperature 45 C, the second valve 7 is then adjusted again, gas separation system is entered with stable pressure, flow；
Gas separation system uses gaseous jet simulation principle, by unstrpped gas input power system 4, gas pretreatment system 6,
First valve 3 and the second valve 7 cause feedstock gas pressures, temperature, flow to reach the requirement of gas separation system process conditions；
Sulfur hexafluoride and nitrogen mixed gas are entered with specified pressure, temperature, flow by gas separation system raw material gas inlet,
After gas separation system separates, mixed gas is divided into three road gases：Tail gas, product gas and recyclegas, tail gas it is main into
It is divided into nitrogen, contains micro sulfur hexafluoride gas；The principal component of recyclegas is nitrogen and sulfur hexafluoride gas, sulfur hexafluoride
Gas accounting is more than 50%；The principal component of product gas is sulfur hexafluoride gas, concentration >=90% of sulfur hexafluoride gas；
Recyclegas is exported by the circulating air of gas separation system, through the 5th valve 17, recyclegas dynamical system 18, second
Check valve 19 enters gas pretreatment system 6, rejoins mixed gas separation process；
Tail gas is entered in exhaust treatment system 25, through vent gas treatment by gas separation system offgas outlet through the 8th valve 24
Discharged after the processing of system 25 is up to standard by exhaust port 26, it discharges sulfur hexafluoride content in gas and is less than 1000ppm；
Product gas is by the product gas outlet of gas separation system, through the 3rd valve 10, product gas recovery system the 11, the 4th
After valve 12, the high concentration sulfur hexafluoride product gas after mixed gas is separated is reclaimed and stored to external hexafluorated sulphur vessel
In；
（4）, after the registration of first pressure table 2 is less than 5000Pa, represent that sulfur hexafluoride and nitrogen mix insulation outlet openings are set
Standby middle mixed gas is pumped, and is closed and is opened the first valve 3, the second valve 7, the 3rd valve 10, the 4th valve 12, the 5th valve
17 and the 8th valve 24, close unstrpped gas input power system 4, gas pretreatment system 6, the and of separation system of mixed gas 9
Recyclegas dynamical system 18, reclaim the separating-purifying end of job.
Claims (5)
1. sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device, it is characterised in that：Including passing sequentially through gas recovery
Pipeline connection mixed gas air inlet, first pressure table, the first valve, unstrpped gas input power system, the first check valve,
Gas pretreatment system, the second valve, second pressure gauge, separation system of mixed gas, the 3rd pressure gauge, the 3rd valve, product
Gas recovery system, the 4th valve, the 4th pressure gauge and sulfur hexafluoride gas gas outlet；
The 5th pressure gauge and thermometer are connected with gas pretreatment system；
Mixed gas circulation line, gas separation system connection are also associated between gas separation system and gas pretreatment system
There is exhaust emission tube road.
2. sulfur hexafluoride according to claim 1 and nitrogen mixed gas recovery separating-purifying device, it is characterised in that：It is mixed
Close and the 5th valve, circulating air are disposed with by the direction of gas separation system to gas pretreatment system on gas circulation line
Body dynamical system and the second check valve.
3. sulfur hexafluoride according to claim 2 and nitrogen mixed gas recovery separating-purifying device, it is characterised in that：Also
Including pumped vacuum systems, pumped vacuum systems includes vavuum pump, the first vacuum-pumping pipeline and the second vacuum-pumping pipeline, and first vacuumizes
The bleeding point of pipeline is connected with product gas recovery system, and the bleeding point of the second vacuum-pumping pipeline is connected to the 4th valve and the 4th
On gas withdrawal line between pressure gauge, the 6th valve is provided with the first vacuum-pumping pipeline, is set in the second vacuum-pumping pipeline
It is equipped with the 7th valve, the bleeding point connection of the gas outlet and vacuum of the first vacuum-pumping pipeline and the second vacuum-pumping pipeline, vavuum pump
Bleeding point be provided with the 6th pressure gauge.
4. sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device according to right wants 3, it is characterised in that：Tail gas
Discharge line is disposed with the 8th valve, exhaust treatment system and exhaust port along airflow direction.
5. the recovery separation using sulfur hexafluoride as claimed in claim 4 and nitrogen mixed gas recovery separating-purifying device carries
Pure method, it is characterised in that：Comprise the following steps,
（1）, mixed gas air inlet is connected with the exhaust outlet of sulfur hexafluoride and nitrogen mix insulation outlet openings equipment, by six
Sulfur fluoride gas outlet is connected with the air inlet of sulfur hexafluoride external container or sulfur hexafluoride external pipeline；
（2）, open the 6th valve and the 7th valve, start vavuum pump at least 30 minutes, by the first vacuum-pumping pipeline to product
Vacuumized inside gas recovery system, by the second vacuum-pumping pipeline to sulfur hexafluoride external container or sulfur hexafluoride extension tube attached
Road vacuumizes；
（3）, close vavuum pump, the 6th valve and the 7th valve, open the first valve, the second valve, the 3rd valve, the 4th valve
Door, the 5th valve and the 8th valve, start unstrpped gas input power system, gas pretreatment system, mixed gas segregative line
System and recyclegas dynamical system, sulfur hexafluoride and nitrogen mixed gas enter gas recovery pipe by mixed gas air inlet
Road, first by the first valve regulated charge flow rate, then by unstrpped gas input power system, through check valve, to determine
Pressure enter gas pretreatment system, dust floccule, SF6 catabolites in gas pretreatment system processing mixed gas
And moisture, dust processing accuracy can reach 0.01 μm, and unstrpped gas is heated up to specified temperature 45 C, then adjust again
Two valves, gas separation system is entered with stable pressure, flow；
Gas separation system uses gaseous jet simulation principle, passes through unstrpped gas input power system, gas pretreatment system,
One valve and the second valve cause feedstock gas pressures, temperature, flow to reach the requirement of gas separation system process conditions；
Sulfur hexafluoride and nitrogen mixed gas are entered with specified pressure, temperature, flow by gas separation system raw material gas inlet,
After gas separation system separates, mixed gas is divided into three road gases：Tail gas, product gas and recyclegas, tail gas it is main into
It is divided into nitrogen, contains micro sulfur hexafluoride gas；The principal component of recyclegas is nitrogen and sulfur hexafluoride gas, sulfur hexafluoride
Gas accounting is more than 50%；The principal component of product gas is sulfur hexafluoride gas, concentration >=90% of sulfur hexafluoride gas；
Recyclegas is exported by the circulating air of gas separation system, through the 5th valve, recyclegas dynamical system, second unidirectional
Valve enters gas pretreatment system, rejoins mixed gas separation process；
Tail gas is entered in exhaust treatment system, through exhaust treatment system by gas separation system offgas outlet through the 8th valve
Processing it is up to standard after discharged by exhaust port, its discharge gas in sulfur hexafluoride content be less than 1000ppm；
Product gas is by the product gas outlet of gas separation system, through the 3rd valve, product gas recovery system, the 4th valve
Afterwards, the high concentration sulfur hexafluoride product gas after mixed gas is separated is reclaimed and stored into external hexafluorated sulphur vessel；
（4）, after the registration of first pressure table is less than 5000Pa, represent sulfur hexafluoride and nitrogen mix insulation outlet openings equipment
Middle mixed gas is pumped, and is closed and is opened the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve and the 8th valve
Door, close unstrpped gas input power system, gas pretreatment system, separation system of mixed gas and recyclegas dynamical system
System, reclaim the separating-purifying end of job.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710561349.6A CN107485978A (en) | 2017-07-11 | 2017-07-11 | Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710561349.6A CN107485978A (en) | 2017-07-11 | 2017-07-11 | Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107485978A true CN107485978A (en) | 2017-12-19 |
Family
ID=60644437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710561349.6A Pending CN107485978A (en) | 2017-07-11 | 2017-07-11 | Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107485978A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101006A (en) * | 2017-12-20 | 2018-06-01 | 国网河北省电力有限公司电力科学研究院 | A kind of SF6And N2The quick recycling and processing device of mixed gas and method |
| CN108355461A (en) * | 2018-04-16 | 2018-08-03 | 西安交通大学 | Sulfur hexafluoride and nitrogen mixed gas purification separation purifying plant and its reclaiming clean purify sulfur hexafluoride method |
| CN109516441A (en) * | 2018-11-06 | 2019-03-26 | 国网浙江省电力有限公司检修分公司 | A kind of recycling of sulfur hexafluoride, low temperature fluid injection bulking system and its working method |
| CN111547685A (en) * | 2020-04-10 | 2020-08-18 | 国网河北省电力有限公司电力科学研究院 | Low concentration SF in enclosed space6Gas recovery processing device and method |
| CN113499662A (en) * | 2021-07-27 | 2021-10-15 | 中国南方电网有限责任公司超高压输电公司昆明局 | Sulfur hexafluoride gas recovery processing device and gas recovery system under full positive pressure condition |
-
2017
- 2017-07-11 CN CN201710561349.6A patent/CN107485978A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101006A (en) * | 2017-12-20 | 2018-06-01 | 国网河北省电力有限公司电力科学研究院 | A kind of SF6And N2The quick recycling and processing device of mixed gas and method |
| CN108101006B (en) * | 2017-12-20 | 2020-01-24 | 国网河北省电力有限公司电力科学研究院 | SF (sulfur hexafluoride)6And N2Device and method for rapidly recovering and treating mixed gas |
| CN108355461A (en) * | 2018-04-16 | 2018-08-03 | 西安交通大学 | Sulfur hexafluoride and nitrogen mixed gas purification separation purifying plant and its reclaiming clean purify sulfur hexafluoride method |
| CN108355461B (en) * | 2018-04-16 | 2024-05-24 | 西安交通大学 | Sulfur hexafluoride and nitrogen mixed gas purifying and separating device and sulfur hexafluoride recovering and purifying method |
| CN109516441A (en) * | 2018-11-06 | 2019-03-26 | 国网浙江省电力有限公司检修分公司 | A kind of recycling of sulfur hexafluoride, low temperature fluid injection bulking system and its working method |
| CN109516441B (en) * | 2018-11-06 | 2024-05-10 | 国网浙江省电力有限公司检修分公司 | Sulfur hexafluoride recovery and low-temperature liquid injection filling system and working method thereof |
| CN111547685A (en) * | 2020-04-10 | 2020-08-18 | 国网河北省电力有限公司电力科学研究院 | Low concentration SF in enclosed space6Gas recovery processing device and method |
| CN111547685B (en) * | 2020-04-10 | 2022-01-25 | 国网河北省电力有限公司电力科学研究院 | Low-concentration SF6 gas recovery processing device and method in closed space |
| CN113499662A (en) * | 2021-07-27 | 2021-10-15 | 中国南方电网有限责任公司超高压输电公司昆明局 | Sulfur hexafluoride gas recovery processing device and gas recovery system under full positive pressure condition |
| CN113499662B (en) * | 2021-07-27 | 2022-08-30 | 中国南方电网有限责任公司超高压输电公司昆明局 | Sulfur hexafluoride gas recovery processing device and gas recovery system under full positive pressure condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107485978A (en) | Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device and method | |
| CN105864632B (en) | Mobile sulfur hexafluoride and carbon tetrafluoride mixed gas quickly recycle making-up air device | |
| CN102921266B (en) | Tail gas recovery device of sulfur hexafluoride gas test instrument | |
| CN108355461B (en) | Sulfur hexafluoride and nitrogen mixed gas purifying and separating device and sulfur hexafluoride recovering and purifying method | |
| CN208406522U (en) | Sulfur hexafluoride and nitrogen mixed gas purification separation purifying plant | |
| CN107433111A (en) | A kind of quick recovery system of mix insulation gas and method | |
| CN207012771U (en) | Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device | |
| CN112516746A (en) | C4F7N/CO2Mixed gas recovery and purification device | |
| CN205773343U (en) | Portable sulfur hexafluoride and carbon tetrafluoride mixed gas Rapid recovery device | |
| CN106040527A (en) | Nitrogen filling vacuum pressure impregnation equipment and method | |
| CN207153420U (en) | A kind of quick recovery system of mix insulation gas | |
| CN101732947A (en) | Method for safe adsorption and enrichment of gas with low concentration | |
| CN202823087U (en) | Tail gas recovery device of sulfur hexafluoride gas test instrument | |
| CN102976291A (en) | Variable pressure adsorption nitrogen production equipment and method thereof | |
| CN102495175A (en) | Zero discharge device and working method for detecting sulfur hexafluoride gas | |
| SA00210147B1 (en) | Separation of sulfur hexafluoride SF6 from gases isolated from gas-insulated lines | |
| CN218774566U (en) | C4F7N/CO2 mixed gas purification treatment system for on-site recovery | |
| CN105084325A (en) | Sulfur hexafluoride recovery device and sulfur hexafluoride recovery vehicle | |
| CN203703604U (en) | SF6 gas recovery device with gas component analysis function | |
| CN102921301B (en) | Method for preparing medical oxygen from mixed gases containing oxygen air components through multi-cycle membrane separation | |
| CN205709851U (en) | efficient molecular sieve oxygenerator | |
| CN113893642B (en) | Ring main unit C 4 F 7 N/CO 2 Mixed gas on-site recovery device and method | |
| JP3385053B2 (en) | Rare gas high yield recovery and purification method and rare gas high yield recovery and purification device | |
| CN214051036U (en) | Emergent recovery unit of electrical equipment leakage gas | |
| CN214051037U (en) | Emergent recovery unit of electrical equipment leakage gas |
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 |