CN208406547U - The separator of mixed gas - Google Patents
The separator of mixed gas Download PDFInfo
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- CN208406547U CN208406547U CN201820656833.7U CN201820656833U CN208406547U CN 208406547 U CN208406547 U CN 208406547U CN 201820656833 U CN201820656833 U CN 201820656833U CN 208406547 U CN208406547 U CN 208406547U
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- gas
- separation assembly
- separation
- separating film
- essence
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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
- B01D53/22—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
-
- 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
-
- 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
- B01D2053/221—Devices
Abstract
The utility model provides a kind of separator of mixed gas, initial gross separation is carried out to the gas to be separated comprising first gas and second gas by the first separation assembly, it is separated again by the second separation assembly and third separation assembly again, to obtain the relatively high first gas of purity and the relatively high second gas of purity, concentration can reach requirement, and may be implemented mixed gas high-efficiency and continuous handle, structure is simple, cost is relatively low, convenient for control.
Description
Technical field
The utility model relates to gas separation and recovery technology field more particularly to a kind of separators of mixed gas.
Background technique
Sulfur hexafluoride (SF6) gas is optimal insulation and arc-extinguishing medium so far, but with modern science and technology
Development and attention of the people to environmental problem, SF6Greenhouse effects get growing concern for.According to statistics, from 1961 to
1999, the whole world consumed 136,172 tons of SF altogether6Gas, wherein electric system consume about 42, and 530 tons, this part SF6Gas
The greenhouse effects of generation are equivalent to the greenhouse effects of 1,000,000,000 tons of CO2 gas generation.SF in nineteen ninety atmosphere6The volumetric concentration of gas
It is 2.5 × 10-12, increase to 3.2 × 10 to nineteen ninety-five-12。SF6The service life of gas in an atmosphere was very long, up to 3000.It is false
If after 2000, annual SF6The discharge amount of gas is the same with nineteen ninety-five, is all 6800 tons, when by 2010, SF6The concentration of gas
It is up to 8 × 10-12, when by 2100, it is up to 30 × 10-12.If do not taken effective measures, after the several years in atmosphere
SF6The concentration of gas will be a surprising number, and corresponding greenhouse effects will be more serious.It is cut therefore, it is necessary to find one
Real effective method solves this problem.
Currently, both at home and abroad it is believed that reducing SF before finding for articles6One of the greenhouse harm of gas is preferable
Method is to replace pure SF with mixed gas6Gas serves as dielectric, to reduce SF6The dosage of gas.What mixed gas was often referred to
It is N2/SF6Or CF4/SF6, wherein N2/SF6With prospects for commercial application, development trend now is subtracted as far as possible in mixed gas
Few SF6Content.N in the mixed gas breaker that the 1980s, foreign countries were developed into2/SF6Mixing ratio (volume ratio) be
60%:40% or 50%:50% has had already appeared the N that mixing ratio is 10%:90% to late 1990s2/SF6It is mixed
Gas is closed, therefore it is far smaller than pure SF to the harm of environment6Gas.Due to cannot be by SF6Gas is directly discharged in atmosphere,
It therefore should be by SF in gas recycling6Gas is separated from mixed gas and is recycled.It can have both been reduced in this way because of row
Put SF6Greenhouse effects caused by gas can also reduce the cost inflated again.
In the prior art for containing SF6The separation of mixed gas generallys use separating film progress, the SF after separation6It is pure
Degree can achieve 90%, but there is still a need for purify again；N simultaneously2Or CF4In still contain more large content of SF6, lead to N2Middle SF6
Content can not direct emission or CF still above the discharge index that environment allows4Purity is not high directly to be recycled.
Utility model content
The utility model provides a kind of separator of mixed gas, to N2/SF6Or CF4/SF6Mixed gas is realized
The separation of high-efficiency and continuous improves separating obtained SF6Purity, reduce separation after N2Or CF4Middle SF6Content, meet production
Or the needs of discharge.
The one aspect of the utility model is to provide a kind of separator of mixed gas, comprising: be provided with air inlet,
Permeate the first separation assembly, the second separation assembly and the third separation assembly of mouth and gas outlet, and first separation assembly
With the first separating film, second separation assembly has the second separating film, and the third separation assembly is with third point
Scrapping off film, each separating film are all larger than first gas to the permeability of second gas；
The air inlet of first separation assembly is passed through gas to be separated, wherein the gas to be separated includes described first
Gas and the second gas；The infiltration mouth of first separation assembly is connected to the air inlet of third separation assembly, will be led to
Cross the first separating film obtains first just separation gas injection third separation assembly；
The first essence separation gas that the infiltration mouth output of the third separation assembly is obtained by the third separating film；
The gas outlet of the third separation assembly is connected to the air inlet of first separation assembly, will not separated by the third
Second essence separation gas of film returns to first separation assembly；
The gas outlet of first separation assembly is connected to the air inlet of second separation assembly, will be not by described
The second of first separating film just separates gas and injects second separation assembly；The infiltration mouth of second separation assembly and institute
The air inlet connection of the first separation assembly is stated, gas will be separated by the third essence that second separating film obtains and return to institute
State the first separation assembly；The gas outlet output of second separation assembly does not pass through the 4th essence separation of second separating film
Gas.
Further, described device further includes separating film heating device, for controlling the operating temperature of each separating film.
Optionally, the separating film heating device includes the first gas heating before being set to first separation assembly
Device and the second gas heating device being set between first separation assembly and the third separation assembly；
The first gas heating device can be to the gas to be separated for the air inlet for being passed through first separation assembly
Body, the second essence separation gas and third essence separation gas are heated；
The second gas heating device can just separate gas to described first and heat.
Further, the separating film heating device further includes being set to first separation assembly and second point described
From the third gas heating device between component, gas can be just separated to described second and heated.
Optionally, the separating film heating device includes being respectively arranged at first separation assembly, second point described
From the heating rod inside component and the third separation assembly directly to the heating of each separating film.
Further, described device further includes constant-voltage equipment, for controlling the operating pressure of each separating film.
Further, the constant-voltage equipment includes:
First supercharger, before being set to first separation assembly, for the air inlet to first separation assembly is passed through
Gas, the second essence separation gas and the third essence separation gas to be separated of mouth are pressurized；
Second supercharger is set between first separation assembly and the third separation assembly, for described
First, which just separates gas, is pressurized；
First flow adjuster is connect with third separation assembly gas outlet, for controlling the second essence separation gas
The flow of body；
Second flow adjuster is connect with second separation assembly gas outlet, for controlling the 4th essence separation gas
The flow of body.
Further, described device further include: recyclable device is connected to the gas outlet of second separation assembly, is used for
Recycle the 4th essence separation gas.
Further, the recyclable device includes increased pressure liquefied device or pressurized liquefied cryogenic device.
Further, the separating film is carbon molecular sieve film, Kapton or polycarbonate.
The separator of mixed gas provided by the utility model, by the first separation assembly to including first gas and
The gas to be separated of two gases carries out initial gross separation, then is separated again by the second separation assembly and third separation assembly,
To obtain the relatively high first gas of purity and the relatively high second gas of purity, concentration can reach requirement, and
It handles the high-efficiency and continuous of mixed gas may be implemented, structure is simple, and cost is relatively low, convenient for control.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure chart of the separator of mixed gas provided by the embodiment of the utility model；
Fig. 2 is the structure chart of the separator for the mixed gas that another embodiment of the utility model provides.
Appended drawing reference:
The first separation assembly of 100-；The air inlet of the first separation assembly of 110-；
The infiltration mouth of the first separation assembly of 120-；The gas outlet of the first separation assembly of 130-；
The second separation assembly of 200-；The air inlet of the second separation assembly of 210-；
The infiltration mouth of the second separation assembly of 220-；The gas outlet of the second separation assembly of 230-；
300- third separation assembly；The air inlet of 310- third separation assembly；
The infiltration mouth of 320- third separation assembly；The gas outlet of 330- third separation assembly；
410- first gas heating device；420- second gas heating device；
The first supercharger of 510-；The second supercharger of 520-；
610- first flow adjuster；620- second flow adjuster；
710- pressure sensor；720- pressure sensor；
730- pressure sensor；810- third supercharger；
820- liquefaction vessel；830- pressure sensor.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.In the description of the present application, it is to be understood that term
The orientation or positional relationship of the instructions such as "front", "rear", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second " etc. is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated
Technical characteristic quantity.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
Restriction.
Fig. 1 is the structure chart of the separator of mixed gas provided by the embodiment of the utility model.As shown in Figure 1, this reality
It applies example and provides a kind of separator of mixed gas, comprising: be provided with the first separation of air inlet, infiltration mouth and gas outlet
Component 100, the second separation assembly 200 and third separation assembly 300, and first separation assembly 100 has the first separation
Film, second separation assembly 200 have the second separating film, and the third separation assembly 300 has third separating film,
Each separating film is all larger than first gas to the permeability of second gas.
Wherein, the 110 of first separation assembly 100 are passed through gas to be separated, wherein the gas to be separated includes institute
State first gas and the second gas；First separation assembly 100 infiltration mouth 120 and third separation assembly 300 into
Port 310 is connected to, and will be obtained by first separating film first just separates gas and inject the third separation assembly
300；
The first essence point that infiltration mouth 320 output of the third separation assembly 300 is obtained by the third separating film
From gas；The gas outlet 330 of the third separation assembly 300 is connected to the air inlet 110 of first separation assembly 100, with
The second essence separation gas not by the third separating film is returned into first separation assembly 100；
The gas outlet 130 of first separation assembly 100 is connected to the air inlet 210 of second separation assembly 200, with
The second of first separating film will not passed through and just separate gas injection second separation assembly 200；Second separation
The infiltration mouth 220 of component 200 is connected to the air inlet 110 of first separation assembly 100, will be thin by second separation
The third essence separation gas that film obtains returns to first separation assembly 100；The gas outlet 230 of second separation assembly 200
Output does not pass through the 4th essence separation gas of second separating film.
In the present embodiment, using high molecular polymer membrane process, namely separating film is used to divide gas
From wherein gas to be separated is N2/SF6Or CF4/SF6Mixed gas, first gas SF6Gas, second gas N2Or CF4
Carbon molecular sieve film, Kapton or polycarbonate may be selected as separating film in gas, and cardinal principle is: gas
Different its permeability R are also different with the temperature of thin polymer film for type, and under the same terms, the high gas penetration film of permeability is wanted
It is fast.When separating film temperature is identical, SF6The permeability of gas is much smaller compared with other gases, and with separating film
The raising of temperature, He, CF4、CO2、N2Permeability all become larger, only SF6The permeability of gas becomes smaller.Such as N2/SF6It is mixed
It closes for gas, separating film is maintained at certain condition of high temperature, N2Permeability and SF6The ratio of permeability is with regard to bigger, N2
It can quickly pass through separating film, and SF6It is then slower by the speed of separating film, it is also just relatively easy to, efficiently separates
SF out6Gas.It should be noted that device provided in this embodiment can also be used for suitable for high molecular polymer membrane process other
The separation of mixed gas.
Due to separating film to the permeability of first gas and non-zero namely first gas still has at least partially through separation
Film, therefore the separation assembly of separating film is all had in the present embodiment using three, it is attached as shown in Figure 1, first point
Infiltration mouth 120 from component 100 is connected to the air inlet 310 of third separation assembly 300, the gas outlet of the first separation assembly 100
130 are connected to the air inlet 210 of the second separation assembly 200；The gas outlet 330 of third separation assembly 300 and the first separation assembly
100 air inlet 110 is connected to, and the infiltration mouth 220 of the second separation assembly 200 and the air inlet 110 of the first separation assembly 100 connect
It is logical.Gas to be separated is passed through from the air inlet 110 of the first separation assembly 100, and gas to be separated is by the first of the first separating film
Step separation, the gas by the first separating film separate gas at the beginning of being first, wherein since second gas permeability is greater than first
Gas, the first content for just separating second gas in gas are much larger than first gas, and first just separates gas via the first separation
The infiltration mouth 120 of component 100 is discharged, and enters third separation assembly 300 by the air inlet 310 of third separation assembly 300；And do not lead to
The gas for crossing the first separating film be second just separate gas, wherein second just in separation gas first gas content much larger than the
Two gases, second just separates gas is discharged from the gas outlet 130 of the first separation assembly 100, by the air inlet of the second separation assembly 200
Mouth 210 enters the second separation assembly 200.Further, gas is just separated into the first of third separation assembly 300 pass through third
The smart separation of separating film progress, the gas by third separating film are that the first essence separates gas, and gas is separated at the beginning of first
The content of middle first gas is relatively fewer, then will be further reduced by the first gas of third separating film namely first is smart
Separation gas is more pure second gas, for N2For/SF mixed gas, under the conditions of specific temperature and pressure,
SF in first essence separation gas6Gas content is lower than 0.05%, meets the discharge index of environment permission.And it is not separated by third
Second essence separation gas of the gas of film contains more first gas and second gas, return the first separation assembly 100 into
Row separates again.Further, gas is just separated for entering the second of the second separation assembly 200, by the second separating film
Carry out smart separation, the further separation second just second gas in separation gas, while also having part first gas by the
Two separating films, therefore the third essence separation gas obtained by the second separating film contains more first gas and the second gas
Body needs to return the first separation assembly 100 and is separated again, and not then by the 4th essence separation gas of the second separating film
For the higher first gas of purity, for N2/SF6For mixed gas, under the conditions of specific temperature and pressure, the 4th essence point
From SF in gas6Gas content reaches 94% or more.
The separator of mixed gas provided in this embodiment, by the first separation assembly to including first gas and second
The gas to be separated of gas carries out initial gross separation, then is separated again by the second separation assembly and third separation assembly, from
And the relatively high first gas of purity and the relatively high second gas of purity are obtained, concentration can reach requirement, and can
With realize mixed gas high-efficiency and continuous handle, structure is simple, and cost is relatively low, convenient for control.
As the further improvement of above-described embodiment, the separator of the mixed gas further includes separating film heating dress
It sets, for controlling the operating temperature of each separating film.
Due to for N2/SF6Or CF4/SF6Mixed gas, with the raising of separating film temperature, He, CF4、CO2、N2's
Permeability all becomes larger, only SF6The permeability of gas becomes smaller, it is therefore desirable to which separating film is maintained at certain condition of high temperature.
By setting separating film heating device in the present embodiment, to control the operating temperature of each separating film, wherein operating temperature can
40~50 DEG C are set as, preferred operating temperature is 43 DEG C.
In a kind of optional example, as shown in Fig. 2, the separating film heating device includes being set to first separation
First gas heating device 410 before component 100 and it is set to first separation assembly 100 and the third separation group
Second gas heating device 420 between part 300.
Wherein the first gas heating device 410 can be to the air inlet 110 for being passed through first separation assembly 100
The gas to be separated, the second essence separation gas and third essence separation gas are heated；
The second gas heating device 420 can just separate gas to described first and heat.
By being heated to gas in this example, thus by the heat transfer of gas carrying to separating film, so that point
Scrapping off film is maintained under scheduled operating temperature.In this example only before the first separation assembly 100 and 100 He of the first separation assembly
Gas-heating apparatus is set between the third separation assembly 300, and not in the first separation assembly 100 and the second separation assembly
Gas-heating apparatus is set between 200, allows for the first separation assembly 100 and the second directly series connection of separation assembly 200, namely
Second, which just separates gas, directly injects the second separation assembly 200 from the first separation assembly 100, and separation gas needs unlike at the beginning of first
More heat exchange is carried out by the first separating film and with the first separating film, therefore separation gas does not need again at the beginning of second
It is heated.Furthermore all separating film parts all carry out adiabatic heat-insulation, greatly reduce and extraneous heat exchange.And at the beginning of first
It separates gas to decline by temperature after the first separating film, needs to reinject the by second gas heating device 420 after heating
Three separation assemblies 300, could maintain the operating temperature of third separating film.
Further, the separating film heating device, which may also comprise, is set to first separation assembly 100 and described
Third gas heating device between second separation assembly 200 is heated with just separating gas to described second, avoids second
Just separation gas occurs temperature drop and leads to not the operating temperature for maintaining the second separating film.
In another optional example, the separating film heating device includes being respectively arranged at first separation assembly
100, the heating of second separation assembly 200 and 300 inside of the third separation assembly directly to the heating of each separating film
Stick.
Using heating rod is arranged inside each separation assembly in this example, to control the work temperature of each separating film
Degree.Certain separating film heating device is also not limited to the device of above-mentioned example offer, and any achievable pair in the prior art
The device of separating film heating.
Further, described device further includes constant-voltage equipment, for controlling the operating pressure of each separating film.
In the present embodiment, each separating film work is controlled under scheduled operating pressure by constant-voltage equipment, Ke Yiti
The osmotic efficiency of high second gas can faster separate second gas, be conducive to improve the first gas at each gas outlet
The content of body.It can be 5~10bar (relative pressure) by control admission pressure to control separating film work in the present embodiment
Make under scheduled operating pressure, preferred admission pressure is 8bar (relative pressure).
Further, as shown in Fig. 2, the constant-voltage equipment includes: the first supercharger 510, the second supercharger 520, first
Flow regulator 610 and second flow adjuster 620.
Wherein, the first supercharger 510, before being set to first separation assembly 100, for be passed through it is described first separation
The gas to be separated of the air inlet 110 of component 100, the second essence separation gas and the third essence separate gas into
Row pressurization；
Second supercharger 520 is set between first separation assembly 100 and the third separation assembly 300, is used for
It is pressurized to separation gas at the beginning of described first；
First flow adjuster 610 is connect with the gas outlet 330 of the third separation assembly 300, for controlling described
The flow of two essence separation gases；
Second flow adjuster 620 is connect with the gas outlet 230 of second separation assembly 200, for controlling described
The flow of four essence separation gases.
In the present embodiment, the gas of the air inlet 110 of the first separation assembly 100 is entered by 510 pairs of the first supercharger
The 4th essence point for being pressurized, and being discharged by the gas outlet 230 that second flow adjuster 620 controls the second separation assembly 200
Flow from gas passes through the first supercharger 510 and the since the first separation assembly 100 and the second separation assembly 200 are to connect
The co- controlling of two flow regulators 620 is, it can be achieved that separating film in the first separation assembly 100 and the second separation assembly 200
Operating pressure control.Certainly flow adjusting can also be added again between the first separation assembly 100 and the second separation assembly 200
Device and supercharger.And for third separation assembly 300, pass through the common control of the second supercharger 520 and first flow adjuster 610
System, to realize the control to the operating pressure of third separating film.
In the present embodiment, supercharger is electrical control gas boosting equipment, and gas compressor or gas boosting can be used
Pump.
Further, the constant-voltage equipment further includes multiple pressure sensors 710,720 and 730, and setting position can
It is shown in Figure 2, so that the pressure of the separator different location of mixed gas is monitored in real time, according to each pressure sensor institute
Pressure real-time control the first supercharger 510, the second supercharger 520, first flow adjuster 610 and second flow adjuster
620。
In the above-described embodiments, for N2/SF6Or CF4/SF6The separation of mixed gas, separating film part are above wanted in application
Suitable admission pressure and intake air temperature are asked, admission pressure is 8bar (relative pressure), and intake air temperature is 43 DEG C, while keeping permanent
Fixed gas flow, this is by 510 (flow 30m of the first supercharger3/ h) and 520 (flow 10m of the second supercharger3/ h) respectively
Control, the first essence so as to realize that the infiltration mouth 320 of third separation assembly 300 discharges separate SF in gas6Gas content
It is 0.035%, SF in the 4th essence separation gas that the gas outlet 230 of the second separation assembly 200 is discharged6Gas content reaches
94%.
As the further improvement of above-described embodiment, the separator of the mixed gas further include: recyclable device, with institute
The gas outlet 230 for stating the second separation assembly 200 is connected to, for recycling the 4th essence separation gas.
In the present embodiment, due to containing the higher first gas (SF of concentration in the 4th essence separation gas6Gas), for
Expensive gas or the gas being not directly discharged into atmosphere, can add recyclable device, to recycle, reduction is produced into
This, efficent use of resources protects environment.And recyclable device can be then not provided with for the gas for not needing recycling, direct emission.
In addition, if desired the first essence of recycling separates gas, a recyclable device can also be connected in the infiltration mouth 320 of third separation assembly 300.
Further, the recyclable device includes increased pressure liquefied device or pressurized liquefied cryogenic device.
In the present embodiment, increased pressure liquefied device can be used to recycle the first essence separation gas.Increased pressure liquefied device
It may include the third supercharger 810 being connected to the gas outlet 230 of the second separation assembly 200, the liquid being connected to third supercharger 810
Change container 820 and pressure sensor 830, pressure sensor 830 monitors 820 internal pressure of liquefaction vessel, according to pressure sensing
The pressure control third supercharger 810 that device 830 obtains is pressurized, and is liquefied to realize in liquefaction vessel 820.For SF6Gas
Body, under an atmospheric pressure, SF6The boiling point of gas is -50 DEG C, compares N2Boiling point (- 200 DEG C or so) want much higher, therefore SF6Gas
Body is relatively easy liquefaction, usual pure SF6At room temperature (20 DEG C), air pressure will liquefy gas when being 2.0MPa.Due to
SF in one essence separation gas6Concentration is very high, therefore, when being pressurized to 2.0~4.0MPa by third supercharger 810,
In liquefaction vessel 820, the SF of high concentration6Gas will be quickly converted to liquid.Pressure sensor 830 also can ensure that device not
It can superpressure operation.
In addition, pressurized liquefied cryogenic device also can be used in recyclable device, by pressurizeing and the collective effect of low temperature increases by the
The liquefying speed of one gas.Specifically, pressurized liquefied cryogenic device can be added on the basis of above-mentioned increased pressure liquefied device
One cooling device.
In above-described embodiment, separating film is respectively provided in each separation assembly, the separating film in each separation assembly includes
Single separating film quantity can not wait, according to the gas of device separate final demand effect determine, every group inside it is each
Single separating film can be parallel connection.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of separator of mixed gas characterized by comprising be provided with air inlet, infiltration mouth and gas outlet
First separation assembly, the second separation assembly and third separation assembly, and first separation assembly has the first separation thin
Film, second separation assembly have the second separating film, and the third separation assembly has third separating film, respectively separates thin
Film is all larger than first gas to the permeability of second gas；
The air inlet of first separation assembly is passed through gas to be separated, wherein the gas to be separated includes the first gas
With the second gas；The infiltration mouth of first separation assembly is connected to the air inlet of third separation assembly, will pass through institute
State the first separating film obtains first just separation gas injection third separation assembly；
The first essence separation gas that the infiltration mouth output of the third separation assembly is obtained by the third separating film；It is described
The gas outlet of third separation assembly is connected to the air inlet of first separation assembly, will not pass through the third separating film
The second essence separation gas return to first separation assembly；
The gas outlet of first separation assembly is connected to the air inlet of second separation assembly, will not pass through described first
The second of separating film just separates gas and injects second separation assembly；The infiltration mouth of second separation assembly and described the
The air inlet of one separation assembly is connected to, and gas will be separated by the third essence that second separating film obtains and returns to described the
One separation assembly；The gas outlet output of second separation assembly does not pass through the 4th essence separation gas of second separating film
Body.
2. the apparatus according to claim 1, which is characterized in that further include separating film heating device, for controlling each point
The operating temperature of scrapping off film.
3. the apparatus of claim 2, which is characterized in that the separating film heating device includes being set to described the
First gas heating device before one separation assembly and be set to first separation assembly and the third separation assembly it
Between second gas heating device；
The first gas heating device can be to the gas to be separated for the air inlet for being passed through first separation assembly, institute
It states the second essence separation gas and third essence separation gas is heated；
The second gas heating device can just separate gas to described first and heat.
4. device according to claim 3, which is characterized in that the separating film heating device further include be set to it is described
Third gas heating device between first separation assembly and second separation assembly can just separate gas to described second
It is heated.
5. the apparatus of claim 2, which is characterized in that the separating film heating device includes being respectively arranged at institute
It states and directly each separating film is heated inside the first separation assembly, second separation assembly and the third separation assembly
Heating rod.
6. device according to claim 1-5, which is characterized in that further include constant-voltage equipment, for controlling each point
The operating pressure of scrapping off film.
7. device according to claim 6, which is characterized in that the constant-voltage equipment includes:
First supercharger, before being set to first separation assembly, for the air inlet for being passed through first separation assembly
The gas to be separated, the second essence separation gas and third essence separation gas are pressurized；
Second supercharger is set between first separation assembly and the third separation assembly, for described first
Just separation gas is pressurized；
First flow adjuster is connect with third separation assembly gas outlet, for controlling the second essence separation gas
Flow；
Second flow adjuster is connect with second separation assembly gas outlet, for controlling the 4th essence separation gas
Flow.
8. device according to claim 7, which is characterized in that further include: recyclable device, with second separation assembly
Gas outlet connection, for recycling the 4th essence separation gas.
9. device according to claim 8, which is characterized in that the recyclable device includes that increased pressure liquefied device or pressurization are low
Warm liquefying plant.
10. device according to claim 9, which is characterized in that the separating film is carbon molecular sieve film, polyimides
Film or polycarbonate；
The first gas is SF6Gas, the second gas are N2Or CF4Gas.
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| CN2018100177688 | 2018-01-09 | ||
| CN201810017768 | 2018-01-09 | ||
| CN2018200306171 | 2018-01-09 | ||
| CN201820030617 | 2018-01-09 |
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| CN208406547U true CN208406547U (en) | 2019-01-22 |
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| CN201820656833.7U Expired - Fee Related CN208406547U (en) | 2018-01-09 | 2018-05-03 | The separator of mixed gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108404613A (en) * | 2018-01-09 | 2018-08-17 | 丁五行 | The separator of mixed gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109956457A (en) * | 2019-02-20 | 2019-07-02 | 常州大学 | A kind of novel energy-saving SF6/N2System for separating and purifying |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000015039A (en) * | 1998-07-02 | 2000-01-18 | Mitsubishi Electric Corp | Apparatus for recovering and regenerating sulfur hexafluoride gas |
| DE19923155A1 (en) * | 1999-05-20 | 2000-11-23 | Solvay Fluor & Derivate | Process for removing sulfur hexafluoride/nitrogen mixtures from gas-isolated lines comprises contacting the gas mixture with a membrane |
| JP3727552B2 (en) * | 2001-05-31 | 2005-12-14 | 財団法人地球環境産業技術研究機構 | Perfluoro compound gas separation and recovery equipment |
| KR101395092B1 (en) * | 2012-07-23 | 2014-05-27 | 한국화학연구원 | Appratus for separating and recovering fluorinated gas, and the method for separating and recovering of fluorinated gas thereby |
| CN204269439U (en) * | 2014-12-12 | 2015-04-15 | 广西电网有限责任公司河池供电局 | Detect the online harmless sampling apparatus of sulfur hexafluoride decomposition gas |
| CN205461688U (en) * | 2016-03-29 | 2016-08-17 | 天脊煤化工集团股份有限公司 | A separator for CH4 and CO2 in feed gas |
| CN107433111A (en) * | 2017-09-18 | 2017-12-05 | 国网安徽省电力公司电力科学研究院 | A kind of quick recovery system of mix insulation gas and method |
| CN108404613A (en) * | 2018-01-09 | 2018-08-17 | 丁五行 | The separator of mixed gas |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108404613A (en) * | 2018-01-09 | 2018-08-17 | 丁五行 | The separator of mixed gas |
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| CN108404613A (en) | 2018-08-17 |
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