CN110302716A - Constant volume transformation big flow air distribution system and its air distributing method - Google Patents
Constant volume transformation big flow air distribution system and its air distributing method Download PDFInfo
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- CN110302716A CN110302716A CN201910726122.1A CN201910726122A CN110302716A CN 110302716 A CN110302716 A CN 110302716A CN 201910726122 A CN201910726122 A CN 201910726122A CN 110302716 A CN110302716 A CN 110302716A
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- Prior art keywords
- air inlet
- constant volume
- transformation
- partial pressure
- blending tank
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Links
- 230000009466 transformation Effects 0.000 title claims abstract description 98
- 238000009826 distribution Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000002156 mixing Methods 0.000 claims abstract description 111
- 230000003139 buffering effect Effects 0.000 claims description 33
- 230000008569 process Effects 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000000872 buffer Substances 0.000 claims 1
- 238000005273 aeration Methods 0.000 abstract description 7
- 238000013329 compounding Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 132
- 229910018503 SF6 Inorganic materials 0.000 description 112
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 34
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 241000883990 Flabellum Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000008246 gaseous mixture Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011177 media preparation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
- B01F23/191—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means characterised by the construction of the controlling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2213—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
- B01F35/833—Flow control by valves, e.g. opening intermittently
Abstract
The present invention discloses a kind of constant volume transformation big flow air distribution system, including partial pressure air inlet pipeline structure, constant volume blending tank, transformation output pipe structure；Multiple partial pressure air inlet pipeline structures are in being arranged in parallel, and the gas after the partial pressure air inlet pipeline structure transformation mixes in the constant volume blending tank, and the transformation output pipe structure is to carry out pressurization output for mixed gas.Invention additionally discloses a kind of constant volume transformation big flow air distributing methods.The present invention has and any two kinds of gas can be formulated as mixed gas, then is pressurized and is filled into electrical equipment, meets electrical equipment requirement.This method mixed gas compounding speed is fast, precision is high, and aeration speed is greater than 120m3The advantages of/h, error is less than ± 0.3%.
Description
Technical field
The present invention relates to technical field of electricity more particularly to mix insulation medium preparation technique fields.
Background technique
Air insulating device is the key that one of irreplaceable power transmission and transforming equipment of modern power network.Its with it is compact-sized, by
The advantages that such environmental effects are small, property safe and reliable to operation is high.
Wherein, SF6Gas is because its excellent electric property is widely used in high voltage electric equipment, but its low temperature easily liquefies
It is used with strong greenhouse effects by limitation.The extremely frigid zones such as China Heilungkiang, Xinjiang start using SF6/CF4Mixed gas breaker,
To prevent SF6Low-temperature gas liquefaction,；Meanwhile Guo Wang company industry is to practice social responsibility, reduces SF6Gas usage, in GIS bus
With large-scale popularization application SF in environmentally friendly power transfer conduit (GIL)6/N2Mixed gas.Currently, SF6Mixed gas electrical equipment has become
The weight of one of core equipment of the large size Energy Base power Transmission such as Xinjiang of China, Inner Mongol and global energy Internet Strategy
Want support equipment.The extra-high-voltage alternating current GIL mixed gas inflation method as disclosed in patent application 201610620970.0, pass through by
SF6And N2Proportionally in blending transportation to gas mixing tank；The pressure in the gas mixing filling is controlled, the gaseous mixture is made
Body is sufficiently mixed；It finally will be in the mixed gas delivery to the extra-high-voltage alternating current GIL in gas mixing filling.
SF6/N2When mixed gas is applied to extra-high voltage GIL, single gas chamber up to 100~200m, gas consumption up to 700kg with
On, chamber volume is big, is limited duration on site, need within a short period of time quickly, accurately prepare a large amount of SF6/N2Gaseous mixture
Body.Existing mixed gas preparation fills there are mainly two types of technologies, and one is dynamic air-distributing aerationes, such as patent application
Eight channel sulfur hexafluoride dynamic air-distributing method and system of one kind disclosed in 2017109526872, first by two kinds of gas mixings, then it is right
Equipment is inflated.This method is the flow that two kinds of gas is controlled using mass flowmenter, and precision is high, high degree of automation.Separately
A kind of partial pressure distribution aeration is that the A gas centainly divided is first filled with equipment using Dalton's law (of partial pressures), is re-filled with certain
The B gas of partial pressure.
Devince By Dynamic Gas Ration Method prepares SF6/N2Mixed gas is to be controlled using mass flow controller gas ratio, is needed
It to be first depressured and mix filling of boosting again, step is complicated；And this method is limited to the output of mass flow controller and compressor
Flow, distribution speed only up to reach 18m3/h.The single GIL gas chamber for being 200m for length, fills the SF of 0.7MPa6/N2
Mixed gas is at least also required to 4 days even if air distributing device is not shut down for 24 hours, and GIL is made of tens gas chambers, and light inflates this
One link needs to seriously affect the duration more than the moon.
Partial pressure method prepares SF6/N2Mixed gas is the partial pressure that two kinds of gas is indicated using pressure gauge, and pressure meter accuracy is low,
The mixed gas precision of preparation is low, and setting value deviation is larger；Two kinds of gases are uniformly mixed in equipment at least to be needed for 24 hours, sternly
Ghost image rings the live duration.
Summary of the invention
Present invention seek to address that the prior art technology that there are distribution rates in mixed gas compounding is slow, distribution precision is low
Problem.
The present invention is realized by following technological means solves a kind of above-mentioned technical problem: constant volume transformation big flow distribution system
System, including partial pressure air inlet pipeline structure, constant volume blending tank, transformation output pipe structure；Multiple partial pressure air inlet pipeline structures
In being arranged in parallel, the gas after the partial pressure air inlet pipeline structure transformation mixes in the constant volume blending tank, the transformation
Output pipe structure is to carry out pressurization output for mixed gas.
The method that the distribution of constant volume transformation is carried out using air distribution system of the invention, comprising the following steps:
Vacuumize process is carried out to entire constant volume transformation big flow air distribution system first, then by SF6、N2Pass through SF respectively6
Divide air inlet pipeline structure, N2It divides air inlet pipeline structure and carries out transformation, the SF after respectively obtaining transformation6、N2, after transformation
SF6、N2It is mixed in constant volume blending tank, obtains SF6/N2Mixed gas, by transformation output pipe structure to SF6/N2Gaseous mixture
Body carries out pressurization output.
The present invention carries out vacuumize process to entire constant volume transformation big flow air distribution system first, then by different gas
Inputted in surge tank by different partial pressure air inlet pipeline structure, obtain the gas of different pressures, then will by it is described divide into
Gas after tracheae line structure transformation mixes in the constant volume blending tank, then will be mixed mixed through the constant volume blending tank
It closes gas to be input in transformation output pipe structure, carries out pressurization output.
By using constant volume transformation big flow SF of the invention6/N2The air distribution system of mixed gas, can be by any two kinds
After gas first carries out transformation, it is then formulated as mixed gas, then be pressurized and be filled into electrical equipment, meets electrical equipment requirement.
In this way, the present invention has actually carried out transformation processing three times, and after the gas source in steel cylinder is by pressure reducing valve and proportioning valve, gas pressure
0.9MPa is reduced to hereinafter, this should be the processing of first time transformation；Then, gas is evacuated to constant volume blending tank out of surge tank, and second
Secondary transformation；Mixed gas pressurization filling is third time transformation to equipment.
It is handled using transformation (pressurization), so that mixed gas compounding speed of the present invention is fast, precision is high, aeration speed is greater than
120m3/ h, error are less than ± 0.3%.
Preferably, the partial pressure air inlet pipeline structure includes air inlet pipeline structure, partial pressure buffering pipeline structure, the air inlet
The outlet side of pipeline structure is connected to the inlet end of the partial pressure buffering pipeline structure, the outlet of the partial pressure buffering pipeline structure
End is connected to the air inlet of the constant volume blending tank.
Preferably, the air inlet pipeline structure includes admission line, pressure reducing valve, and the pressure reducing valve is arranged in the air inlet pipe
On road, the gas outlet of the admission line is connected to the inlet end of the partial pressure buffering pipeline structure.
Preferably, partial pressure buffering pipeline structure includes proportioning valve, the first solenoid valve, surge tank, second solenoid valve, the
One compressor, the first check valve, partial pressure buffering pipe；
The air inlet of the partial pressure buffering pipe is connected to the outlet side of the air inlet pipeline structure, the partial pressure separator tube
The gas outlet in road is connected to the air inlet of the constant volume blending tank；The proportioning valve, the first solenoid valve, surge tank, the second electromagnetism
Valve, the first compressor, the first check valve are arranged on the partial pressure buffering pipe；Wherein, the proportioning valve, the first solenoid valve
Between the air inlet pipeline structure and the surge tank, the second solenoid valve, the first compressor, the first check valve are located at
Between the transformation output pipe structure and the surge tank.
To prepare SF6/N2For mixed gas, when needing to SF6It is input to SF6When surge tank, pressure reducing valve, ratio are opened
Valve and the aperture for adjusting proportioning valve open the first solenoid valve, admission line and SF6Surge tank connection, SF6From SF6It is defeated in steel cylinder
Enter, after pressure reducing valve pressure stabilizing (pressure controls within 0.9MPa), the regulation of its pressure is then carried out by proportioning valve, then defeated
Enter to SF6It in surge tank, is cached, after input, closes each valve.When needing SF6SF in surge tank6Input
When into constant volume blending tank, second solenoid valve, the first compressor, the first check valve, SF are opened6SF in surge tank6After pressurization,
It is input in constant volume blending tank, until SF6Surge tank overbottom pressure completes input in setting value, closes each valve, the first compression
Machine.
By N2Transformation is input to N2Surge tank and by N2N in surge tank2The mode reference being input in constant volume blending tank
SF6Input mode.
Preferably, multiple partial pressure air inlet pipeline structures are divided into two groups, including the first component is pressed into tracheae line structure, second group
Divide air inlet pipeline structure；Wherein, the first component be pressed into the outlet side of tracheae line structure and the upper end of the constant volume blending tank or
Connection at the top of person, second component are pressed into the outlet side of tracheae line structure and the lower end of the constant volume blending tank or bottom and connect
It is logical.
Preferably, the first air inlet is offered at the top of the constant volume blending tank or upper end, is mixed in the constant volume
The bottom or lower end of tank offer the second air inlet；
The outlet side that first component is pressed into tracheae line structure stretches to the constant volume by first air inlet and mixes
It closes the inside of tank and extends downwardly；
The outlet side that second component is pressed into tracheae line structure stretches to the constant volume by second air inlet and mixes
It closes the inside of tank and upwardly extends；
Stretched in the outlet side that first component is pressed into tracheae line structure constant volume blending tank one section inside it with
And one section inside it of constant volume blending tank is stretched in the outlet side that second component is pressed into tracheae line structure and is offered
Stomata；The stomata is distributed in from top to bottom on the outlet side of corresponding partial pressure air inlet pipeline structure.
Preferably, the constant volume transformation big flow air distribution system further includes vacuum-pumping tube line structure；The vacuum-pumping pipeline
Structure include first pipe, second pipe, third pipeline, the 4th pipeline, the 4th solenoid valve, the 5th solenoid valve, three-way magnetic valve,
Vacuum pump；The air inlet of the second pipe, the air inlet of third pipeline are pressed into tracheae line structure with the first component respectively
Surge tank connection, the second component are pressed into the connection of the surge tank in tracheae line structure；The gas outlet of the second pipe, third pipeline
Gas outlet be connected to respectively with the first air inlet of the three-way magnetic valve, the second air inlet, the outlet of the three-way magnetic valve
Mouth is connected to the air inlet of the first pipe, and the 4th solenoid valve, vacuum pump are arranged in the first pipe；It is described
The both ends of 4th pipeline connect with wherein one group of the surge tank divided in air inlet pipeline structure and the constant volume blending tank respectively
It is logical；5th solenoid valve is arranged on the 4th pipeline.
To prepare SF6/N2For mixed gas, when needing to SF6When surge tank, constant volume blending tank are vacuumized, starting
Vacuum pump successively opens the 4th solenoid valve, three-way magnetic valve (guarantees the first air inlet and three-way magnetic valve of third three-way electromagnetic valve
Gas outlet access), SF6Divide the first solenoid valve, the SF in air inlet pipeline structure6Divide the second electricity in air inlet pipeline structure
Magnet valve, the 5th solenoid valve, are vacuumized.When needing to N2When surge tank is vacuumized, SF is closed6Divide air inlet pipeline knot
The first solenoid valve, SF in structure6Second solenoid valve, the 5th solenoid valve in partial pressure air inlet pipeline structure, open N2Divide air inlet pipe
The first solenoid valve, N in line structure2Divide the second solenoid valve in air inlet pipeline structure, three-way magnetic valve (guarantees that third is powered
Second air inlet of magnet valve and the gas outlet access of three-way magnetic valve), it is vacuumized.
Preferably, agitating device is additionally provided on the constant volume blending tank；The agitating device includes shaft, blade, drive
Motivation structure, the driving mechanism are connect with the connecting pin of the shaft, and the stirring end of the shaft stretches to the constant volume mixing
In tank, the blade is mounted on the stirring end of the shaft；
Blade described in multiple groups is distributed in from top to bottom in the shaft, and each group of blade includes more blades sheet
Body；In same group of blade, the angle between adjacent two panels blade body is identical, and all blade bodies form circle distribution；Or
Person, the blade include multi-disc leaf fan, and the angle between adjacent two panels blade body is identical, and all leaf sectors are at circle distribution；
Venthole is offered on every a piece of leaf fan.
Preferably, the transformation output pipe structure includes third solenoid valve, the second compressor, second one-way valve, transformation
Output channel, the air inlet of the transformation output channel are connected to the gas outlet of the constant volume blending tank, the third solenoid valve,
Second compressor, second one-way valve are arranged on the transformation output channel.
Invention additionally discloses a kind of sides that the distribution of constant volume transformation is carried out using above-mentioned constant volume transformation big flow air distribution system
Method, comprising the following steps:
Step 1: carrying out vacuumize process to entire constant volume transformation big flow air distribution system；
Step 2: different gas is inputted in surge tank by different partial pressure air inlet pipeline structures, different pressures are obtained
The gas of power；
Step 3: the gas after the partial pressure air inlet pipeline structure transformation is mixed in the constant volume blending tank；
Step 4: will be input in transformation output pipe structure through the mixed mixed gas of constant volume blending tank, into
Row pressurization output.
The present invention has the advantages that
By using constant volume transformation big flow SF of the invention6/N2The air distribution system of mixed gas, can be by any two kinds
After gas first carries out transformation, it is then formulated as mixed gas, then be pressurized and be filled into electrical equipment, meets electrical equipment requirement.
In this way, the present invention has actually carried out transformation processing three times, and after the gas source in steel cylinder is by pressure reducing valve and proportioning valve, gas pressure
0.9MPa is reduced to hereinafter, this should be the processing of first time transformation；Then, gas is evacuated to constant volume blending tank out of surge tank, and second
Secondary transformation；Mixed gas pressurization filling is third time transformation to equipment.
It is handled using transformation (pressurization), so that mixed gas compounding speed of the present invention is fast, precision is high, aeration speed is greater than
120m3/ h, error are less than ± 0.3%.
The GIL gas chamber of one length 200m, internal diameter 1m, need to fill SF6/N2Mixed gas, wherein SF6Accounting 30%, GIL
Rated operating pressure is 0.7MPa, the distribution time needed for calculating.
GIL chamber volume: V1=π r2D=3.14 × 0.52× 200=157m3
Required SF6/N2Mixed gas volume: V2=8V1=1256m3
Use method distribution speed of the invention with 120m3/ h is calculated, and prepares 1256m3SF6/N2Mixed gas only needs
10 hours or so, the distribution time can be greatly shortened compared to traditional Devince By Dynamic Gas Ration Method and partial pressure distribution method.
Further, SF6After being input to constant volume blending tank, motion process from top to bottom is formed, and N2It is input to constant volume mixing
After tank, motion process from the bottom to top is formed, the two forms mixing.The freedom between gas molecule is relied solely on compared with prior art
The mode to realize gas mixing is moved, the present invention greatlys improve SF6、N2The mixing rate and mixing uniformity of the two.
Further, since the present invention is in SF6It divides and stretches to constant volume blending tank in the outlet side of air inlet pipeline structure in it
One section of portion and in N2One section that its inside of constant volume blending tank is stretched in the outlet side of partial pressure air inlet pipeline structure opens up
There is stomata, so that SF6、N2In the outlet side flow process of corresponding partial pressure air inlet pipeline structure, portion gas can be from stomata stream
Out, to increase SF6、N2Between mixing probability, the mixing rate and mixing uniformity that both can further improve.
Further, in same group of blade, blade body of the invention is four or three pieces, and blade body tool is certain to incline
Rake angle, can the gas to different location carry out agitation mixing.
Further, each flabellum is distributed the venthole that 15 diameters are 1cm or so, during reducing flabellum quick rotation
Air resistance.
Further, proportioning valve of the invention is the change by input voltage value, to change the shift position of spool, to change
The size on flexible road, to realize the adjusting of flow and pressure.So, it is only necessary to the output pressure of two kinds of gas is set in advance,
It can automatic distributing.And proportioning valve belongs to continuous control, it can be achieved that long-range control and process control, avoid and manually adjust repeatedly
Section, precision are high.Proportioning valve sets pressure limit: 0.01~3.0MPa；Maximum stream flow: 180m3/ h, wherein output pressure and input
There are certain proportionate relationships between pressure.
Detailed description of the invention
Fig. 1 is a kind of constant volume transformation big flow SF in the embodiment of the present invention6/N2The structure of the air distribution system of mixed gas is shown
It is intended to.
Fig. 2 is the structural schematic diagram of constant volume blending tank in the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of constant volume blending tank in the embodiment of the present invention 6.Wherein, in figure arrow (non-appended drawing reference
Arrow) indicate gas input direction.
Fig. 4 is the structural schematic diagram of constant volume blending tank in the embodiment of the present invention 7.Wherein, in figure arrow (non-appended drawing reference
Arrow) indicate gas input direction.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
The embodiment of the present invention is to prepare SF6/N2Mixed gas is the introduction that object carries out structure, working principle, but is needed
It is noted that air distribution system of the invention, air distributing method are not limited only to SF6/N2The preparation of mixed gas, using the present invention
Air distribution system, air distributing method prepares other mix insulation gases also should be within the scope of the present invention.
Embodiment 1
As shown in Figure 1, the present embodiment discloses a kind of constant volume transformation big flow SF6/N2The air distribution system of mixed gas, including
SF6Divide air inlet pipeline structure 1, N2Divide air inlet pipeline structure 2, constant volume blending tank 3, transformation output pipe structure 4.SF6Partial pressure
Air inlet pipeline structure 1, N2Partial pressure air inlet pipeline structure 2 is in being arranged in parallel, through SF6Divide air inlet pipeline structure 1, N2Divide air inlet
SF after 2 transformation of pipeline structure6、N2It is mixed in constant volume blending tank 3, forms SF6/N2Mixed gas, transformation output pipe structure
4 to by mixed SF6/N2Mixed gas carries out pressurization output.
The method that the distribution of constant volume transformation is carried out using air distribution system of the invention, comprising the following steps:
Vacuumize process is carried out to entire constant volume transformation big flow air distribution system first.Then by SF6、N2Pass through SF respectively6
Divide air inlet pipeline structure 1, N2It divides air inlet pipeline structure 2 and carries out transformation, the SF after respectively obtaining transformation6、N2, after transformation
SF6、N2It is mixed in transfiguration blending tank 3, obtains SF6/N2Mixed gas.Using transformation output pipe structure 4 to SF6/N2It is mixed
It closes gas and carries out pressurization output.
By using constant volume transformation big flow SF of the invention6/N2The air distribution system of mixed gas, can be by any two kinds
After gas first carries out transformation, it is then formulated as mixed gas, then be pressurized and be filled into electrical equipment, meets electrical equipment requirement.
In this way, the present invention has actually carried out transformation processing three times, since steel cylinder bleed pressure is very high, through pressure reducing valve and
Electric Proportion valve, pressure are not higher than 0.9MPa, this should be the processing of first time transformation；Then, gas is evacuated to constant volume out of surge tank
Blending tank, second of transformation；Mixed gas pressurization filling is third time transformation to equipment.
The flow of the mixed gas exported to it by constant volume blending tank 3 again carries out unified regulation, using pressurized treatments,
So that mixed gas compounding speed of the present invention is fast, precision is high, aeration speed is greater than 120m3/ h, error are less than ± 0.3%.
Experiment:
The GIL gas chamber of a certain length 200m, internal diameter 1m, need to fill SF6/N2Mixed gas, wherein SF6Accounting 30%,
GIL rated operating pressure is 0.7MPa, distribution time needed for calculating.
GIL chamber volume: V1=π r2D=3.14 × 0.52× 200=157m3
Required SF6/N2Mixed gas volume: V2=8V1=1256m3
Use method distribution speed of the invention with 120m3/ h is calculated, and prepares 1256m3SF6/N2Mixed gas only needs
10 hours or so, the distribution time can be greatly shortened compared to traditional Devince By Dynamic Gas Ration Method and partial pressure distribution method.
Embodiment 2
As shown in Figure 1, the present embodiment discloses a kind of specific partial pressure air inlet pipeline structure 11, used due to the present invention
SF6Divide air inlet pipeline structure 1, N2Partial pressure air inlet pipeline structure 2 is identical, and therefore, the present embodiment is with SF6Divide air inlet pipeline knot
Structure 1 is introduced, N2Air inlet pipeline structure 2 is divided referring to SF6Divide air inlet pipeline structure 1.In order to show difference, the present embodiment
Spy is by SF6Surge tank in partial pressure air inlet pipeline structure 1 is named as SF6Surge tank 121, N2It divides slow in air inlet pipeline structure 2
It rushes tank and is named as N2Surge tank 221.Preferably, the pressure of detection surge tank internal pressure is additionally provided on each surge tank
Table.
SF6Dividing air inlet pipeline structure 1 includes air inlet pipeline structure 11, partial pressure buffering pipeline structure 12, air inlet pipeline knot
The outlet side of structure 11 is connected to the inlet end of partial pressure buffering pipeline structure 12, the outlet side of partial pressure buffering pipeline structure 12 and constant volume
The air inlet of blending tank 3 is connected to.
Air inlet pipeline structure 11 includes admission line 111, pressure reducing valve 112, and pressure reducing valve 112 is arranged on admission line 111,
The air inlet of air inlet pipeline structure 11 is connected to corresponding steel cylinder, since this sentences SF6Divide air inlet pipeline structure 1 be object into
Row is open, then the air inlet of air inlet pipeline structure 11 herein with SF is housed6SF6Steel cylinder connection, the outlet of admission line 111
Mouth is connected to the inlet end of partial pressure buffering pipeline structure 12.
Partial pressure buffering pipeline structure 12 includes proportioning valve 122, the first solenoid valve 123, SF6Surge tank 121, second solenoid valve
124, the first compressor 125, the first check valve 126, partial pressure buffering pipe 127.Divide air inlet and the air inlet of buffering pipe 127
The outlet side of pipeline structure 11 is connected to, and the gas outlet of partial pressure buffering pipe 127 is connected to the air inlet of constant volume blending tank 3.Ratio
Valve 122, the first solenoid valve 123, SF6Surge tank 121, second solenoid valve 124, the first compressor 125, the first check valve 126 are
Setting is on partial pressure buffering pipe 127.Wherein, proportioning valve 122, the first solenoid valve 123 are located at air inlet pipeline structure 11 and SF6It is slow
It rushes between tank 121, second solenoid valve 124, the first compressor 125, the first check valve 126 are located at constant volume blending tank 3 and SF6Buffering
Between tank 121.
When needing SF6It is input to SF6When surge tank 121, pressure reducing valve 112, proportioning valve 122, the first solenoid valve 123 are opened
And adjust the aperture of proportioning valve 122, admission line 111 and SF6Surge tank 121 is connected to, SF6From SF6It is exported in steel cylinder, by subtracting
After 112 pressure stabilizing of pressure valve (pressure controls within 0.9MPa), the regulation of its pressure is then carried out by proportioning valve 122, then input
To SF6It in surge tank 121, is cached, after input, closes each valve.When needing SF6SF in surge tank 1216
When being input in constant volume blending tank 3, second solenoid valve 124, the first compressor 125, the first check valve 126, SF are opened6Surge tank
SF in 1216It after pressurization, is input in constant volume blending tank 3, until SF6121 overbottom pressure of surge tank completes input in setting value,
Close each valve, the first compressor 125.
By N2Transformation is input to N2Surge tank 221 and by N2N in surge tank 2212It is input in constant volume blending tank 3
Mode is referring to SF6Input mode.
Preferably, N of the invention2、SF6Two-way gas can input simultaneously, increase air distribution efficiency.
For example, a certain electrical equipment volume is 150m3, need to prepare the SF that absolute pressure is 0.7MPa6/N2Mixed gas,
Wherein SF6And N2Ratio be 30:70, then SF in mixed gas6And N2Absolute pressure be respectively 210kPa and 490kPa.
Pass through SF6The control of proportioning valve 122 divided in air inlet pipeline structure 1 enters SF6The SF of surge tank 1216Gas pressure
For 210kPa.Pass through N2The control of proportioning valve 122 divided in air inlet pipeline structure 2 enters N2The N of surge tank 2212Pressure is
490kPa。
Gas mixing process, by SF6SF in surge tank 1216It is evacuated to mixing surge tank, until SF6Gas in surge tank 121
Pressure is 100kPa.By N2N in surge tank 2212It is evacuated to surge tank mixing surge tank, until N2Gas pressure is in surge tank 221
100kPa.Two kinds of gases mix in constant volume blending tank 3.
Embodiment 3
As shown in Figure 1, 2, the difference of the present embodiment and above-described embodiment is, SF6Divide the outlet of air inlet pipeline structure 1
End is connected to the upper end of constant volume blending tank 3 or top, N2Divide outlet side and the constant volume blending tank 3 of air inlet pipeline structure 2
Lower end or bottom connection.
In this way, SF6After being input to constant volume blending tank 3, motion process from top to bottom is formed, and N2It is input to constant volume mixing
After tank 3, motion process from the bottom to top is formed, the two is mixed.Oneself between gas molecule is relied solely on compared with prior art
Realize that the mode of gas mixing, hybrid mode of the invention can greatly improve SF by moving6、N2The mixing rate of the two, with
And mixing uniformity.
Embodiment 4
As shown in Figure 1, the difference of the present embodiment and above-described embodiment is, at the top or upper end of constant volume blending tank 3
The first air inlet is offered, offers the second air inlet in the bottom of constant volume blending tank 3 or lower end.
SF6Divide air inlet pipeline structure 1 outlet side by the first air inlet stretch to constant volume blending tank 3 inside and to
Lower extension.In SF6It divides and carries out mechanical seal, such as prior art between the outlet side and the first air inlet of air inlet pipeline structure 1
Sealing ring (being not drawn into figure) be sealed.
N2Divide air inlet pipeline structure 2 outlet side by the second air inlet stretch to constant volume blending tank 3 inside and to
Upper extension.In N2It divides and carries out mechanical seal between the outlet side and the second air inlet of air inlet pipeline structure 2, such as the prior art
Sealing ring (being not drawn into figure) is sealed.
As shown in Figure 2, it is preferable that in SF6It divides and stretches to constant volume blending tank 3 in the outlet side of air inlet pipeline structure in it
One section of portion and in N2One section that its inside of constant volume blending tank 3 is stretched in the outlet side of partial pressure air inlet pipeline structure opens up
There is stomata 1271.Stomata is distributed in from top to bottom on the outlet side of corresponding partial pressure air inlet pipeline structure.
Since the present invention is in SF6It divides and stretches to the one of its inside of constant volume blending tank 3 in the outlet side of air inlet pipeline structure 1
Section and in N2One section that its inside of constant volume blending tank 3 is stretched in the outlet side of partial pressure air inlet pipeline structure 2 offers gas
Hole 1271, so that SF6、N2In the outlet side flow process of corresponding partial pressure air inlet pipeline structure 11, portion gas can be from stomata
1271 outflows, to increase SF6、N2Between mixing probability, the mixing rate that both can further improve and mixing
Uniformity.
Embodiment 5
As shown in Figure 1, the difference of the present embodiment and above-described embodiment is, constant volume transformation big flow air distribution system further includes
Vacuum-pumping tube line structure 5.Vacuum-pumping tube line structure 5 includes first pipe 51, second pipe 52, third pipeline 53, the 4th pipeline
54, the 4th solenoid valve 55, the 5th solenoid valve 56, three-way magnetic valve 57, vacuum pump 58.Air inlet, the third pipe of second pipe 52
The air inlet in road 53 respectively with SF6The connection of surge tank 121, N2Surge tank 221 is connected to.The gas outlet of second pipe 52, third pipeline
53 gas outlet is connected to the first air inlet of three-way magnetic valve 57, the second air inlet respectively, the gas outlet of three-way magnetic valve 57
It is connected to the air inlet of first pipe 51, the 4th solenoid valve 55, vacuum pump 58 are arranged in first pipe 51.4th pipeline 54
Both ends respectively with SF6Surge tank 121 and constant volume blending tank 3 are connected to.5th solenoid valve 56 is arranged on the 4th pipeline 54.
When needing to SF6When surge tank 121, constant volume blending tank 3 are vacuumized, start vacuum pump 58, successively opens the
Four solenoid valves 55, three-way magnetic valve 57 (guarantee the first air inlet of third three-way electromagnetic valve 57 and the gas outlet of three-way magnetic valve 57
Access), SF6Divide the first solenoid valve 123, the SF in air inlet pipeline structure 16Divide the second solenoid valve in air inlet pipeline structure 1
124, the 5th solenoid valve 56 is vacuumized.When needing to N2When surge tank 221 is vacuumized, SF is closed6Divide air inlet pipe
The first solenoid valve 123, SF in line structure 16Second solenoid valve 124, the 5th solenoid valve 56 in partial pressure air inlet pipeline structure 1,
Open N2Divide the first solenoid valve 123, the N in air inlet pipeline structure 22Divide air inlet pipeline structure 2 in second solenoid valve 124,
Three-way magnetic valve 57 (guarantees the second air inlet of third three-way electromagnetic valve 57 and the gas outlet access of three-way magnetic valve 57), is taken out
Vacuum.
Embodiment 6
As shown in figure 3, the difference of the present embodiment and above-described embodiment is, stirring dress is additionally provided on constant volume blending tank 3
It sets.Agitating device includes shaft 61, blade 62, driving mechanism 63, and driving mechanism 63 is connect with the connecting pin of shaft 61, shaft 61
Stirring end stretch in constant volume blending tank 3, blade is mounted on the stirring end of shaft 61.
Multiple groups blade 62 is distributed in from top to bottom in shaft 61, and each group of blade 62 includes more blades ontology
621.In same group of blade 62, the angle between adjacent two panels blade body 621 is identical, and all blade bodies 621 form circle
Week distribution.
Inventive drive means are preferably motor, drive shaft 61 to rotate by motor, it is preferable that same group of blade 62
In, blade body 621 of the invention is four or three pieces, and blade body 621 has certain tilt angle, can be to different positions
The gas set carries out agitation mixing.
Embodiment 7
As shown in figure 4, the difference of the present embodiment and above-described embodiment is, blade 62 includes multi-disc leaf fan 622, preferably
Three, the angle between adjacent two panels blade body 621 is identical, and all leaves fans 622 form circle distributions.It is fanned in every a piece of leaf
Venthole 6221 is offered on 622.
Preferably, each flabellum is distributed the venthole 6221 that 15 diameters are 1cm or so, to reduce flabellum quick rotation mistake
Air resistance in journey.
Embodiment 8
As shown in Figure 1, the present embodiment discloses a kind of specific transformation output pipe structure 4, including third solenoid valve 41,
Two compressors 42, second one-way valve 43, transformation output channel 44, air inlet and the constant volume blending tank 3 of transformation output channel 44
Gas outlet connection, third solenoid valve 41, the second compressor 42, second one-way valve 43 are arranged on transformation output channel 44.
By opening third solenoid valve 41, the second compressor 42, second one-way valve 43, mixed SF6/N2Mixed gas
It carries out being pressurized to setting pressure under the action of the second compressor 42, from the output of transformation output channel 44 to electrical equipment.
Proportioning valve 122 of the invention is the change by input voltage value, logical to change to change the shift position of spool
The size on road, to realize the adjusting of flow and pressure.So, it is only necessary to the output pressure of two kinds of gas is set in advance, so that it may
Automatic distributing.And proportioning valve 122 belongs to continuous control, it can be achieved that long-range control and process control, avoid and manually adjust repeatedly
Section, precision are high.Proportioning valve 122 sets pressure limit: 0.01~3.0MPa；Maximum stream flow: 180m3/ h, wherein output pressure with
There are certain proportionate relationships between input pressure.
Embodiment 9
As shown in Figs. 1-2, the present embodiment discloses a kind of constant volume transformation big flow SF6/N2The air distribution system of mixed gas, packet
Include SF6Divide air inlet pipeline structure 1, N2Divide air inlet pipeline structure 2, constant volume blending tank 3, transformation output pipe structure 4.SF6Point
It is pressed into tracheae line structure 1, N2Partial pressure air inlet pipeline structure 2 is in being arranged in parallel, through SF6Divide air inlet pipeline structure 1, N2Divide into
SF after 2 transformation of tracheae line structure6、N2It is mixed in constant volume blending tank 3, forms SF6/N2Mixed gas, transformation output pipe knot
Structure 4 is to by mixed SF6/N2Mixed gas carries out pressurization output.
The SF used due to the present invention6Divide air inlet pipeline structure 1, N2It is identical to divide air inlet pipeline structure 2, therefore, implements
Example is with SF6Partial pressure air inlet pipeline structure 1 is introduced, N2Air inlet pipeline structure 2 is divided referring to SF6Divide air inlet pipeline structure 1.
In order to which to show difference, the present embodiment spy is by SF6Surge tank in partial pressure air inlet pipeline structure 1 is named as SF6Surge tank 121, N2Point
The surge tank being pressed into tracheae line structure 2 is named as N2Surge tank 221.
SF6Dividing air inlet pipeline structure 1 includes air inlet pipeline structure 11, partial pressure buffering pipeline structure 12, air inlet pipeline knot
The outlet side of structure 11 is connected to the inlet end of partial pressure buffering pipeline structure 12, the outlet side of partial pressure buffering pipeline structure 12 and transformation
The inlet end of output pipe structure 4 is connected to.
Air inlet pipeline structure 11 includes admission line 111, pressure reducing valve 112, and pressure reducing valve 112 is arranged on admission line 111,
The air inlet of air inlet pipeline structure 11 is connected to corresponding steel cylinder, since this sentences SF6Divide air inlet pipeline structure 1 be object into
Row is open, then the air inlet of air inlet pipeline structure 11 herein with SF is housed6SF6Steel cylinder connection, the outlet of admission line 111
Mouth is connected to the inlet end of partial pressure buffering pipeline structure 12.
Partial pressure buffering pipeline structure 12 includes proportioning valve 122, the first solenoid valve 123, SF6Surge tank 121, second solenoid valve
124, the first compressor 125, the first check valve 126, partial pressure buffering pipe 127.Divide air inlet and the air inlet of buffering pipe 127
The outlet side of pipeline structure 11 is connected to, and the gas outlet of partial pressure buffering pipe 127 is connected to the air inlet of constant volume blending tank 3.Ratio
Valve 122, the first solenoid valve 123, SF6Surge tank 121, second solenoid valve 124, the first compressor 125, the first check valve 126 are
Setting is on partial pressure buffering pipe 127.Wherein, proportioning valve 122, the first solenoid valve 123 are located at air inlet pipeline structure 11 and SF6It is slow
It rushes between tank 121, second solenoid valve 124, the first compressor 125, the first check valve 126 are located at constant volume blending tank 3 and SF6Buffering
Between tank 121.
Transformation output pipe structure 4, including the output of third solenoid valve 41, the second compressor 42, second one-way valve 43, transformation
The air inlet of pipeline 44, transformation output channel 44 is connected to the gas outlet of constant volume blending tank 3, and third solenoid valve 41, second compresses
Machine 42, second one-way valve 43 are arranged on transformation output channel 44.
Constant volume transformation big flow air distribution system further includes vacuum-pumping tube line structure 5.Vacuum-pumping tube line structure 5 includes the first pipe
Road 51, second pipe 52, third pipeline 53, the 4th pipeline 54, the 4th solenoid valve 55, the 5th solenoid valve 56, three-way magnetic valve 57,
Vacuum pump 58.The air inlet of second pipe 52, third pipeline 53 air inlet respectively with SF6The connection of surge tank 121, N2Surge tank
221 connections.The gas outlet of second pipe 52, third pipeline 53 gas outlet respectively with the first air inlet of three-way magnetic valve 57,
The connection of second air inlet, the gas outlet of three-way magnetic valve 57 are connected to the air inlet of first pipe 51, the 4th solenoid valve 55, vacuum
Pump 58 is arranged in first pipe 51.The both ends of 4th pipeline 54 respectively with SF6Surge tank 121 and constant volume blending tank 3 connect
It is logical.5th solenoid valve 56 is arranged on the 4th pipeline 54.
In conclusion any two kinds of gas can be formulated as mixing the invention proposes a kind of constant volume transformation air distribution system
Gas, then be pressurized and be filled into electrical equipment, meet electrical equipment requirement.This method mixed gas compounding speed is fast, precision is high,
Aeration speed is greater than 120m3/ h, error are less than ± 0.3%.
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of constant volume transformation big flow air distribution system, which is characterized in that including partial pressure air inlet pipeline structure, constant volume blending tank,
Transformation output pipe structure；Multiple partial pressure air inlet pipeline structures become in being arranged in parallel through the partial pressure air inlet pipeline structure
Gas after pressure mixes in the constant volume blending tank, and the transformation output pipe structure is to be added mixed gas
Pressure output.
2. constant volume transformation big flow air distribution system according to claim 1, which is characterized in that the partial pressure air inlet pipeline knot
Structure includes air inlet pipeline structure, partial pressure buffering pipeline structure, the outlet side of the air inlet pipeline structure and the partial pressure separator tube
The inlet end of line structure is connected to, and the outlet side of the partial pressure buffering pipeline structure is connected to the air inlet of the constant volume blending tank.
3. constant volume transformation big flow air distribution system according to claim 2, which is characterized in that the air inlet pipeline structure packet
Include admission line, pressure reducing valve, the pressure reducing valve is arranged on the admission line, the gas outlet of the admission line with described point
The inlet end connection of pressure buffering pipeline structure.
4. constant volume transformation big flow air distribution system according to claim 2, which is characterized in that the partial pressure buffers pipeline knot
Structure includes proportioning valve, the first solenoid valve, surge tank, second solenoid valve, the first compressor, the first check valve, partial pressure separator tube
Road；,
The air inlet of the partial pressure buffering pipe is connected to the outlet side of the air inlet pipeline structure, the partial pressure buffering pipe
Gas outlet is connected to the air inlet of the constant volume blending tank；The proportioning valve, the first solenoid valve, surge tank, second solenoid valve,
One compressor, the first check valve are arranged on the partial pressure buffering pipe；Wherein, the proportioning valve, the first solenoid valve are located at
Between the air inlet pipeline structure and the surge tank, the second solenoid valve, the first compressor, the first check valve are located at described
Between constant volume blending tank and the surge tank.
5. constant volume transformation big flow air distribution system according to claim 1, which is characterized in that multiple partial pressure air inlet pipeline knots
Structure is divided into two groups, including the first component is pressed into tracheae line structure, the second component is pressed into tracheae line structure；Wherein, first group of partial pressure
The outlet side of air inlet pipeline structure is connected to the upper end of the constant volume blending tank or top, and second component is pressed into air pipe
The outlet side of structure is connected to the lower end of the constant volume blending tank or bottom.
6. constant volume transformation big flow air distribution system according to claim 5, which is characterized in that in the constant volume blending tank
Perhaps upper end offers the first air inlet and offers the second air inlet in the bottom of the constant volume blending tank or lower end at top；
The outlet side that first component is pressed into tracheae line structure stretches to the constant volume blending tank by first air inlet
Inside and extend downwardly；
The outlet side that second component is pressed into tracheae line structure stretches to the constant volume blending tank by second air inlet
Inside and upwardly extend；
Stretched in the outlet side that first component is pressed into tracheae line structure constant volume blending tank one section inside it and
Second component, which is pressed into, to be stretched to its internal one section of constant volume blending tank and offers stomata in the outlet side of tracheae line structure；
The stomata is distributed in from top to bottom on the outlet side of corresponding partial pressure air inlet pipeline structure.
7. constant volume transformation big flow air distribution system according to claim 5, which is characterized in that the constant volume transformation big flow
Air distribution system further includes vacuum-pumping tube line structure；The vacuum-pumping tube line structure includes first pipe, second pipe, third pipe
Road, the 4th pipeline, the 4th solenoid valve, the 5th solenoid valve, three-way magnetic valve, vacuum pump；
The air inlet of the second pipe, the air inlet of third pipeline are pressed into the buffering in tracheae line structure with the first component respectively
Tank connection, the second component are pressed into the connection of the surge tank in tracheae line structure；The gas outlet of the second pipe, third pipeline go out
Port is connected to the first air inlet of the three-way magnetic valve, the second air inlet respectively, the gas outlet of the three-way magnetic valve with
The air inlet of the first pipe is connected to, and the 4th solenoid valve, vacuum pump are arranged in the first pipe；Described 4th
The both ends of pipeline respectively in wherein one group of partial pressure air inlet pipeline structure surge tank and the constant volume blending tank be connected to；Institute
The 5th solenoid valve is stated to be arranged on the 4th pipeline.
8. constant volume transformation big flow air distribution system according to claim 1, which is characterized in that on the constant volume blending tank also
It is provided with agitating device；The agitating device includes shaft, blade, driving mechanism, the company of the driving mechanism and the shaft
End connection is connect, the stirring end of the shaft stretches in the constant volume blending tank, and the blade is mounted on the stirring of the shaft
On end；
Blade described in multiple groups is distributed in from top to bottom in the shaft, and each group of blade includes more blades ontology；?
In same group of blade, the angle between adjacent two panels blade body is identical, and all blade bodies form circle distribution；Alternatively, institute
Stating blade includes multi-disc leaf fan, and the angle between adjacent two panels blade body is identical, and all leaf sectors are at circle distribution；Each
Venthole is offered on piece leaf fan.
9. constant volume transformation big flow air distribution system according to claim 1, which is characterized in that the transformation output pipe knot
Structure includes third solenoid valve, the second compressor, second one-way valve, transformation output channel, the air inlet of the transformation output channel
It is connected to the gas outlet of the constant volume blending tank, the third solenoid valve, the second compressor, second one-way valve are arranged at described
On transformation output channel.
10. a kind of match using as the described in any item constant volume transformation big flow air distribution systems of claim 1-9 carry out constant volume transformation
The method of gas, which comprises the following steps:
Step 1: carrying out vacuumize process to entire constant volume transformation big flow air distribution system；
Step 2: different gas is inputted in surge tank by different partial pressure air inlet pipeline structures, different pressures are obtained
Gas；
Step 3: the gas after the partial pressure air inlet pipeline structure transformation is mixed in the constant volume blending tank；
Step 4: will be input in transformation output pipe structure through the mixed mixed gas of constant volume blending tank, added
Pressure output.
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| CN113019220A (en) * | 2021-02-26 | 2021-06-25 | 福州理工学院 | Insulating gas drying and mixing device and method for physical laboratory |
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| CN110801769B (en) * | 2019-11-19 | 2022-03-08 | 中国科学院合肥物质科学研究院 | Preparation system and use method of high-pressure mixed gas |
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| CN113019220B (en) * | 2021-02-26 | 2023-08-25 | 厦门大学嘉庚学院 | Insulating gas drying and mixing device and method for physical laboratory |
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