CN108870066A - Insulating gas inflation method for power equipment - Google Patents
Insulating gas inflation method for power equipment Download PDFInfo
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- CN108870066A CN108870066A CN201810649141.4A CN201810649141A CN108870066A CN 108870066 A CN108870066 A CN 108870066A CN 201810649141 A CN201810649141 A CN 201810649141A CN 108870066 A CN108870066 A CN 108870066A
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- Prior art keywords
- filled
- kpa
- aeration
- gas
- insulating gas
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 340
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 238000005273 aeration Methods 0.000 claims description 319
- 238000009413 insulation Methods 0.000 abstract description 7
- 230000008033 biological extinction Effects 0.000 abstract 1
- 229910018503 SF6 Inorganic materials 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical compound FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/016—Noble gases (Ar, Kr, Xe)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an insulating gas inflation method for power equipment, which comprises the following steps: s1, vacuumizing a cavity of the power equipment which needs arc extinction or a gas insulation test; s2, filling nitrogen into the cavity at a preset inflation speed, and standing for a first preset time; s3, vacuumizing the cavity; s4, filling a first insulating gas with a kPa into the cavity at a first inflation speed, and standing for a second preset time after the filling is finished; wherein the total amount of the first insulating gas required to be filled is X kPa; s5, filling a first insulating gas with b kPa into the cavity; wherein the inflation speed at any time in the process of inflating the first insulating gas with b kPa is lower than the first inflation speed, a is greater than b, and a + b is X. The invention can ensure that the whole process of the inflation of the insulating gas is safe and smooth.
Description
Technical field
The present invention relates to electrical equipment technical field more particularly to a kind of insulating gas inflation sides for power equipment
Method.
Background technique
SF6(sulfur hexafluoride) gas with excellent insulation and goes out as a kind of insulating gas for power equipment
Arc performance, is widely applied in grid equipment.Traditional SF6Gas is since greenhouse effects are high, decomposition product is toxic, according to gas
Variation related protocol is waited to require that its use need to be limited substantially in the year two thousand twenty, thus recent domestic associated mechanisms are to SF6Substitution
Gas has carried out in-depth study.SF6Substituting gas includes part substitution and substitution two types completely.Wherein, part substitutes
It means using SF6The mixed gas of other gases, for example, SF6Gas is mixed with nitrogen or CF3I gas and carbon dioxide mix
Deng.Substitution then refers to completely without using SF completely6Gas, i.e., novel single medium insulating gas, such as CF3I gas.
Currently, when being filled with insulating gas to power equipment, whether mixed type insulating gas or single medium insulation
Gas is all directly to be inflated to power equipment, and entire gas replenishment process is continued for and is filled with relative constant
Gas velocity degree is inflated, the last stages in this way in gas replenishment process, it is possible to can be led since aeration speed is too fast too quickly
The insulating gas in power equipment is caused fierce the phenomenon that colliding occur, such that gas replenishment process becomes dangerous, while by
Going on smoothly for the inflation for being also unfavorable for last stages is collided in gas fierceness.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of insulating gas inflation method for power equipment,
It enables to the whole process of inflation safe and smooth.
To achieve the goals above, the embodiment of the invention provides a kind of insulating gas inflation sides for power equipment
Method comprising step：
S1 vacuumizes the cavity for needing to carry out arc extinguishing or gas-insulated test of power equipment；
S2 is filled with nitrogen into the cavity with preset aeration speed, and stands the first preset time；
S3 vacuumizes the cavity；
S4 is filled with the first insulating gas of a kPa with the first aeration speed into the cavity, and is stood after charging
Two preset times；Wherein, the total amount that the first insulating gas needs to be filled with is X kPa；
S5 is filled with the first insulating gas of b kPa into the cavity；Wherein, it is filled with the first insulating gas of b kPa
The aeration speed of any moment in the process is below the first aeration speed, and a is greater than b, and a+b=X.
As an improvement of the above scheme, the step S5 is specially：
The first insulating gas of 0.5b kPa is filled with into the cavity with the second aeration speed, and stands after charging
Three preset times；Wherein, the second aeration speed is lower than the first aeration speed；
The first insulating gas of 0.5b kPa is filled with into the cavity with third aeration speed；Wherein, third inflation speed
Degree is lower than the second aeration speed.
As an improvement of the above scheme, the second aeration speed is 1kPa/s, and third aeration speed is 0.5kPa/s, and third is pre-
If the time is 1-2 minutes.
As an improvement of the above scheme, the step S5 is specially：
The first insulating gas of b kPa is filled with into the cavity with the 4th aeration speed, and stands the 4th after charging
Preset time；Wherein, the 4th aeration speed is lower than the first aeration speed.
As an improvement of the above scheme, a=0.8X, b=0.2X；The preset aeration speed is 2kPa/s, and first fills
Gas velocity degree is 2kPa/s, and the 4th aeration speed is 1kPa/s；First preset time is 30 minutes, and the second preset time is 1-2 points
Clock, the 4th preset time are 5-10 minutes.
As an improvement of the above scheme, further include after the step S5：
After charging the first insulating gas and standing the 4th preset time, the second insulating gas is filled with into the cavity,
And at least 12 hours are stood after charging；
Wherein, total aeration quantity of the first insulating gas and the second insulating gas is Y kPa, and the compression of the first insulating gas
Coefficient compared with second gas the compressed coefficient further off 1.
As an improvement of the above scheme, second insulating gas that is filled with into the cavity is specially：
When Y≤100 and 0.8Y > X, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until described total
Aeration quantity reaches Y kPa；
When Y≤100 and 0.8Y≤X, second gas is filled with into the cavity with the aeration speed of 1kPa/s until institute
It states the intracorporal total aeration quantity of chamber and reaches Y kPa；
As Y > 100 and 0.8Y > X, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until described total
Aeration quantity reaches 0.9Y kPa, is finally filled with second gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches Y
kPa；
As Y > 100 and 0.8Y≤X≤0.9Y, the second gas is first filled with into the cavity with the aeration speed of 1kPa/s
For body until the intracorporal total aeration quantity of the chamber reaches 0.9Y kPa, it is straight to be then filled with second gas with the aeration speed of 0.5kPa/s
Reach Y kPa to total aeration quantity；
As Y > 100 and 0.9Y < X < Y, it is straight that second gas is filled with into the cavity with the aeration speed of 0.5kPa/s
Reach Y kPa to the intracorporal total aeration quantity of the chamber.
As an improvement of the above scheme, further include after the step S5：
After charging the first insulating gas and standing the 4th preset time, start to be filled with the second insulation gas into the cavity
Body is filled with third insulating gas after charging the second insulating gas, and at least 12 hours are stood after charging third insulating gas；
Wherein, total aeration quantity of both the first insulating gas and second insulating gas is Y kPa, the first insulating gas, the
Total aeration quantity of two insulating gas and the second insulating gas three are Z kPa；The compressed coefficient of first insulating gas is compared with the second gas
The compressed coefficient of body further off 1, and the compressed coefficient of the second insulating gas compared with third gas the compressed coefficient further off 1.
It is as an improvement of the above scheme, as Z≤100, then described to start to be filled with the second insulating gas into the cavity,
And it is filled with third insulating gas after charging the second insulating gas and is specially：
As 0.8Y > X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until described total
Aeration quantity reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until total aeration quantity reaches
0.8Z kPa is finally filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity reaches Z kPa；
As 0.8Y > X and Y >=0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until described total
Aeration quantity reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity reaches Z
kPa；
As 0.8Y≤X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until
The intracorporal total aeration quantity of chamber reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until described
Total aeration quantity reaches 0.8Z kPa, is finally filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity reaches
To Z kPa；
As 0.8Y≤X and Y >=0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until
The intracorporal total aeration quantity of chamber reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 1kPa/s until described
Total aeration quantity reaches Z kPa.
It is as an improvement of the above scheme, as Z > 100, then described to start to be filled with the second insulating gas into the cavity,
And it is filled with third insulating gas after charging the second insulating gas and is specially：
As 0.8Y > X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until described total
Aeration quantity reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until total aeration quantity reaches
0.8Z kPa, then third insulating gas is filled with until total aeration quantity reaches 0.9Z kPa, most with the aeration speed of 1kPa/s
Third insulating gas is filled with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z kPa afterwards；
As 0.8Y > X and 0.8Z≤Y≤0.9Z, the second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Body until the intracorporal total aeration quantity of the chamber reach 0.8Y kPa, then with the aeration speed of 1kPa/s be filled with second gas until
Total aeration quantity reaches Y kPa, is then filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity
Reach 0.9Z kPa, third insulating gas is finally filled with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z
kPa；
As 0.8Y > X and Y > 0.9Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until described total
Aeration quantity reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z
kPa；
As 0.8Y≤X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until
The intracorporal total aeration quantity of chamber reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until described
Total aeration quantity reaches 0.8Z kPa, then is filled with third insulating gas until total aeration quantity reaches with the aeration speed of 1kPa/s
0.9Z kPa is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z kPa；
As 0.8Y≤X and 0.8Z≤Y≤0.9Z, the second gas is first filled with into the cavity with the aeration speed of 1kPa/s
For body until the intracorporal total aeration quantity of the chamber reaches Y kPa, it is straight to be then filled with third insulating gas with the aeration speed of 1kPa/s
Reach 0.9Z kPa to total aeration quantity, third insulating gas is finally filled with the aeration speed of 0.5kPa/s until described total
Aeration quantity reaches Z kPa；
As 0.8Y≤X and Y > 0.9Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until
The intracorporal total aeration quantity of chamber reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until institute
It states total aeration quantity and reaches Z kPa.
The insulating gas inflation method for being used for power equipment provided by the invention, passes through the institute to power equipment first
Cavity is stated to be vacuumized；Then nitrogen is filled with into the cavity with preset aeration speed, with the inside to the cavity
It is cleaned and dried, and stands the first preset time after being filled with nitrogen, to ensure to reach cleaning-drying effect preferably；It fills
The cavity is vacuumized again after entering nitrogen；Then it is filled with the first aeration speed of fast speed into the cavity
The first insulating gas of a kPa (major part in total amount for needing to be filled with), to guarantee more quickly to the cavity
It is inflated, and stands the second preset time after charging the first insulating gas of a kPa, to ensure the intracorporal air-flow of the chamber
Can be relatively more steady, be conducive to judge whether accurately to be charged to a kPa by pressure gauge observation in this way, and due in cavity
Air-flow it is no longer fierce collide, be also beneficial to subsequent continue going on smoothly for inflation；Finally lower than the first aeration speed
Aeration speed is filled with the first insulating gas of b kPa (fraction in total amount for needing to be filled with) into the cavity, in this way
Guarantee in this subsequent stage of gas replenishment process to be not in gas excessively fierce the phenomenon that colliding, to be conducive to fill
It the safety of gas operation and goes on smoothly.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of insulating gas inflation method for power equipment provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Figure 1, the embodiment of the invention provides a kind of insulating gas inflation methods for power equipment comprising
Step：
S1 is vacuumized and (preferably, is extracted into the cavity for needing to carry out arc extinguishing or gas-insulated test of power equipment
Absolute pressure 10Pa or less).
S2 is filled with nitrogen into the cavity with preset aeration speed, and stands the first preset time.
Illustratively, 0.1MPa nitrogen is filled with into the cavity with the aeration speed of 2kPa/s, and stands about 30min points
Clock.
S3 is vacuumized to the cavity and (preferably, is extracted into absolute pressure 10Pa or less).
S4 is filled with the first insulating gas of a kPa with the first aeration speed into the cavity, and is stood after charging
Two preset times；Wherein, the total amount that the first insulating gas needs to be filled with is X kPa.
Illustratively, the first insulating gas of 0.8X kPa is filled with into the cavity with the aeration speed of 2kPa/s, and
1-2 minutes are stood after charging.Wherein, X is preferably 50 integral multiple.
S5 is filled with the first insulating gas of b kPa (b is preferably 0.2X) into the cavity；Wherein, it is filled with b kPa's
The aeration speed of any moment during first insulating gas is below the first aeration speed, and a is greater than b, and a+b=X.
It should be noted that judge whether gas is charged to scheduled amount when being filled with gas, it can be by being used for test chamber
The air gauge of intracorporal air pressure judges to observe.
In embodiments of the present invention, it is vacuumized first by the cavity to power equipment；Then with preset
Aeration speed is filled with nitrogen into the cavity, is cleaned and dried with the inside to the cavity, and is filled with quiet after nitrogen
The first preset time is set, to ensure to reach cleaning-drying effect preferably；It is filled with after nitrogen and the cavity is taken out again
Vacuum；Then it is (big in the total amount for needing to be filled with a kPa to be filled with into the cavity with the first aeration speed of fast speed
Part) the first insulating gas, to guarantee more quickly to be inflated the cavity, and charge the first of a kPa
The second preset time is stood after insulating gas, to ensure that the intracorporal air-flow of the chamber can be relatively more steady, is conducive to pass through in this way
Pressure gauge observation judges whether accurately to be charged to a kPa, and collides since the intracorporal air-flow of chamber is no longer fierce, is also beneficial to
It is subsequent to continue going on smoothly for inflation；B is finally filled with into the cavity with the aeration speed lower than the first aeration speed
The first insulating gas of kPa (fraction in total amount for needing to be filled with), guarantees in this way in the subsequent of gas replenishment process
This stage is not in gas excessively fierce the phenomenon that colliding, to be conducive to inflate the safety of operation and go on smoothly.
For the ease of the understanding to the embodiment of the present invention, scheme in greater detail below is provided herein：
(1) when entire gas replenishment process only needs to be filled with a kind of insulating gas, then the step S5 specifically includes step
S50 to step S51：
S50 is filled with the first insulating gas of 0.5b kPa with the second aeration speed into the cavity, and quiet after charging
Set third preset time；Wherein, the second aeration speed is lower than the first aeration speed.
S51 is filled with the first insulating gas of 0.5b kPa with third aeration speed into the cavity；Wherein, third is filled
Gas velocity degree is lower than the second aeration speed.
Preferably, the second aeration speed is 1kPa/s, and third aeration speed is 0.5kPa/s, and third preset time is 1-2
Minute.
In the present embodiment, respectively by the slightly slow third aeration speed of the second slightly fast aeration speed of speed and speed come
It is filled with the first insulating gas of b kPa, can make the inflation operation in this subsequent stage of gas replenishment process safer in this way
And it more goes on smoothly.And after being filled with the first insulating gas of 0.5bkPa into the cavity with the second aeration speed, stand
Third preset time, it can be ensured that the intracorporal air-flow of chamber can be relatively more steady, is conducive to observe by pressure gauge in this way and sentence
It is disconnected whether to be accurately charged to scheduled amount, and collided since the intracorporal air-flow of chamber is no longer fierce, be also beneficial to it is subsequent after
Continuous inflation is gone on smoothly.
It should be noted that the purpose and effect of standing a period of time in gas replenishment process in following example can join
Examine the associated description of above-described embodiment content.It is understood that in all embodiments of the invention, not having also in gas replenishment process
When completion, it is often filled with a gas, can stand a period of time followed by inflation；Certainly, in order to improve the speed of inflation, often
After being filled with a gas, one end time can not be stood and be to continue with and then inflate.
(2) when entire gas replenishment process needs to be filled with two kinds of insulating gas, then the step S5 is specially：
The first insulating gas of b kPa is filled with into the cavity with the 4th aeration speed, and stands the 4th after charging
Preset time；Wherein, the 4th aeration speed is lower than the first aeration speed.
Illustratively, the first insulating gas of 0.2X kPa is filled with into the cavity with the aeration speed of 1kPa/s, and
5-10 minutes are stood after charging.
After charging the first insulating gas, the second insulating gas can be filled with subsequent.That is, also being wrapped after the step S5
Include step S6：
S6 is filled with the second insulation gas into the cavity after charging the first insulating gas and standing the 4th preset time
Body, and at least 12 hours are stood after charging.
Wherein, charging the purpose for standing at least 12 hours after the second insulating gas is：In order to enable chamber intracorporal first is exhausted
Edge gas is sufficiently mixed with the second insulating gas.In addition, total aeration quantity of the first insulating gas and the second insulating gas is Y
kPa.When the first insulating gas the compressed coefficient compared with second gas the compressed coefficient further off 1, be first filled with the first insulating gas again
The purpose for being filled with insulating gas is：Convenient for going on smoothly for entire gas replenishment process.
Specifically, described the second insulating gas this process of being filled with into the cavity specifically has following five kinds of situations：
(61) when Y≤100 and 0.8Y > X, second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Until the intracorporal total aeration quantity of the chamber reaches 0.8Y kPa, second gas is then filled with the aeration speed of 1kPa/s until institute
It states total aeration quantity and reaches Y kPa.
(62) when Y≤100 and 0.8Y≤X, it is straight that second gas is filled with into the cavity with the aeration speed of 1kPa/s
Reach Y kPa to the intracorporal total aeration quantity of the chamber.
(63) as Y > 100 and 0.8Y > X, second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Until the intracorporal total aeration quantity of the chamber reaches 0.8Y kPa, second gas is then filled with the aeration speed of 1kPa/s until institute
It states total aeration quantity and reaches 0.9Y kPa, second gas is finally filled with the aeration speed of 0.5kPa/s until total aeration quantity reaches
To Y kPa.
(64) as Y > 100 and 0.8Y≤X≤0.9Y, the is first filled with into the cavity with the aeration speed of 1kPa/s
Two gases reach 0.9Y kPa up to the intracorporal total aeration quantity of the chamber, are then filled with the second gas with the aeration speed of 0.5kPa/s
Body is until total aeration quantity reaches Y kPa.
(65) as Y > 100 and 0.9Y < X < Y, the second gas is filled with into the cavity with the aeration speed of 0.5kPa/s
Body is until the intracorporal total aeration quantity of the chamber reaches Y kPa.
In the present embodiment, by the sequencing of the inflation to the first insulating gas and the second insulating gas, and root
Inflation according to the charge of the first insulating gas and the charge of the second insulating gas, to each stage of the first insulating gas
Speed, and the aeration speed in each stage to the second insulating gas, do it is above distribute rationally, can make entirely to inflate in this way
Process it is more smooth and safer, while being also beneficial to being sufficiently mixed for the first insulating gas and the second insulating gas.
(3) when entire gas replenishment process needs to be filled with three kinds of insulating gas, then the step S5 is specially：
The first insulating gas of b kPa is filled with into the cavity with the 4th aeration speed, and stands the 4th after charging
Preset time；Wherein, the 4th aeration speed is lower than the first aeration speed.
Illustratively, the first insulating gas of 0.2X kPa is filled with into the cavity with the aeration speed of 1kPa/s, and
5-10 minutes are stood after charging.
After charging the first insulating gas, the second insulating gas can be filled with subsequent.That is, after the step S5 also
Including step S7：
S7 starts to be filled with second into the cavity absolutely after charging the first insulating gas and standing the 4th preset time
Edge gas is filled with third insulating gas after charging the second insulating gas, and stands at least 12 after charging third insulating gas
Hour.
Wherein, total aeration quantity of both the first insulating gas and second insulating gas is Y kPa, the first insulating gas, the
Total aeration quantity of two insulating gas and the second insulating gas three are Z kPa；The compressed coefficient of first insulating gas is compared with the second gas
The compressed coefficient of body further off 1, and the compressed coefficient of the second insulating gas compared with third gas the compressed coefficient further off 1.
Specifically, the gas replenishment process of the second insulating gas and third insulating gas specifically has following two situation：
The first situation：The case where Z≤100.Wherein, as Z≤100, then described to start to be filled with into the cavity
Two insulating gas, and be filled with third insulating gas specifically after charging the second insulating gas and following four type can be divided into：
(70) as 0.8Y > X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Until the intracorporal total aeration quantity of the chamber reaches 0.8Y kPa, second gas is then filled with the aeration speed of 1kPa/s until institute
It states total aeration quantity and reaches Y kPa, third insulating gas is then filled with the aeration speed of 2kPa/s until total aeration quantity reaches
To 0.8Z kPa, third insulating gas is finally filled with the aeration speed of 1kPa/s until total aeration quantity reaches Z kPa.
(71) as 0.8Y > X and Y >=0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Until the intracorporal total aeration quantity of the chamber reaches 0.8Y kPa, second gas is then filled with the aeration speed of 1kPa/s until institute
It states total aeration quantity and reaches Y kPa, third insulating gas is finally filled with the aeration speed of 1kPa/s until total aeration quantity reaches
To Z kPa.
(72) as 0.8Y≤X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s
Until the intracorporal total aeration quantity of the chamber reaches Y kPa, third insulating gas is then filled with the aeration speed of 2kPa/s until
Total aeration quantity reaches 0.8Z kPa, is finally filled with third insulating gas with the aeration speed of 1kPa/s until total inflation
Amount reaches Z kPa.
(73) as 0.8Y≤X and Y >=0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s
Until the intracorporal total aeration quantity of the chamber reaches Y kPa, third insulating gas is finally filled with the aeration speed of 1kPa/s until
Total aeration quantity reaches Z kPa.
Second situation：The case where Z > 100.It is as Z > 100, then described to start to be filled with the second insulation into the cavity
Gas, and be filled with third insulating gas specifically after charging the second insulating gas and following five seed type can be divided into：
(74) as 0.8Y > X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Until the intracorporal total aeration quantity of the chamber reaches 0.8Y kPa, second gas is then filled with the aeration speed of 1kPa/s until institute
It states total aeration quantity and reaches Y kPa, third insulating gas is then filled with the aeration speed of 2kPa/s until total aeration quantity reaches
To 0.8Z kPa, then with the aeration speed of 1kPa/s be filled with third insulating gas until total aeration quantity reach 0.9Z kPa,
Third insulating gas is finally filled with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z kPa.
(75) as 0.8Y > X and 0.8Z≤Y≤0.9Z, the is first filled with into the cavity with the aeration speed of 2kPa/s
Two gases reach 0.8Y kPa up to the intracorporal total aeration quantity of the chamber, are then filled with second gas with the aeration speed of 1kPa/s
Until total aeration quantity reaches Y kPa, third insulating gas is then filled with the aeration speed of 1kPa/s until described always fill
Tolerance reaches 0.9Z kPa, is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches
Z kPa。
(76) as 0.8Y > X and Y > 0.9Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Until the intracorporal total aeration quantity of the chamber reaches 0.8Y kPa, second gas is then filled with the aeration speed of 1kPa/s until institute
It states total aeration quantity and reaches Y kPa, third insulating gas is finally filled with the aeration speed of 0.5kPa/s until total aeration quantity
Reach Z kPa.
(77) as 0.8Y≤X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s
Until the intracorporal total aeration quantity of the chamber reaches Y kPa, third insulating gas is then filled with the aeration speed of 2kPa/s until
Total aeration quantity reaches 0.8Z kPa, then is filled with third insulating gas until total aeration quantity with the aeration speed of 1kPa/s
Reach 0.9Z kPa, third insulating gas is finally filled with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z
kPa。
(78) as 0.8Y≤X and 0.8Z≤Y≤0.9Z, the is first filled with into the cavity with the aeration speed of 1kPa/s
Two gases reach Y kPa up to the intracorporal total aeration quantity of the chamber, are then filled with third insulation gas with the aeration speed of 1kPa/s
Body reaches 0.9Z kPa up to total aeration quantity, is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until institute
It states total aeration quantity and reaches Z kPa.
(79) as 0.8Y≤X and Y > 0.9Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s
Until the intracorporal total aeration quantity of the chamber reaches Y kPa, it is straight to be finally filled with third insulating gas with the aeration speed of 0.5kPa/s
Reach Z kPa to total aeration quantity.
In the present embodiment, pass through the elder generation of the inflation to the first insulating gas, the second insulating gas and third insulating gas
Sequence afterwards, and being filled with according to the charge of the first insulating gas, the charge of the second insulating gas and third insulating gas
Amount, to the aeration speed in each stage of the first insulating gas, the aeration speed in each stage of the second insulating gas and
The aeration speed in each stage of third insulating gas, do it is above distribute rationally, entire gas replenishment process can be made more in this way
It is smooth and safer, while being also beneficial to the abundant mixed of the first insulating gas, the second insulating gas and third insulating gas three
It closes.
Above disclosed is only some preferred embodiments of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Claims (10)
1. a kind of insulating gas inflation method for power equipment, which is characterized in that including step：
S1 vacuumizes the cavity for needing to carry out arc extinguishing or gas-insulated test of power equipment；
S2 is filled with nitrogen into the cavity with preset aeration speed, and stands the first preset time；
S3 vacuumizes the cavity；
S4 is filled with the first insulating gas of a kPa with the first aeration speed into the cavity, and stands second in advance after charging
If the time；Wherein, the total amount that the first insulating gas needs to be filled with is X kPa；
S5 is filled with the first insulating gas of b kPa into the cavity；Wherein, it is filled with the process of the first insulating gas of b kPa
In the aeration speed of any moment be below the first aeration speed, a is greater than b, and a+b=X.
2. the insulating gas inflation method according to claim 1 for power equipment, which is characterized in that the step S5
Specially：
The first insulating gas of 0.5b kPa is filled with into the cavity with the second aeration speed, and standing third is pre- after charging
If the time；Wherein, the second aeration speed is lower than the first aeration speed；
The first insulating gas of 0.5b kPa is filled with into the cavity with third aeration speed；Wherein, third aeration speed is low
In the second aeration speed.
3. the insulating gas inflation method according to claim 2 for power equipment, which is characterized in that the second inflation speed
Degree is 1kPa/s, and third aeration speed is 0.5kPa/s, and third preset time is 1-2 minutes.
4. the insulating gas inflation method according to claim 1 for power equipment, which is characterized in that the step S5
Specially：
The first insulating gas of b kPa is filled with into the cavity with the 4th aeration speed, and stands the 4th after charging and presets
Time；Wherein, the 4th aeration speed is lower than the first aeration speed.
5. the insulating gas inflation method according to claim 4 for power equipment, which is characterized in that a=0.8X, b
=0.2X；The preset aeration speed is 2kPa/s, and the first aeration speed is 2kPa/s, and the 4th aeration speed is 1kPa/s；
First preset time is 30 minutes, and the second preset time is 1-2 minutes, and the 4th preset time is 5-10 minutes.
6. according to claim 1, being used for the insulating gas inflation method of power equipment described in 4 or 5, which is characterized in that in institute
State step S5 further includes later：
After charging the first insulating gas and standing the 4th preset time, it is filled with the second insulating gas into the cavity, and
At least 12 hours are stood after charging；
Wherein, total aeration quantity of the first insulating gas and the second insulating gas is Y kPa, and the compressed coefficient of the first insulating gas
Compared with second gas the compressed coefficient further off 1.
7. the insulating gas inflation method according to claim 6 for power equipment, which is characterized in that described to described
The second insulating gas is filled in cavity is specially：
When Y≤100 and 0.8Y > X, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until described
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until total inflation
Amount reaches Y kPa；
When Y≤100 and 0.8Y≤X, second gas is filled with into the cavity with the aeration speed of 1kPa/s until the chamber
Intracorporal total aeration quantity reaches Y kPa；
As Y > 100 and 0.8Y > X, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until described
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until total inflation
Amount reaches 0.9Y kPa, is finally filled with second gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches Y kPa；
As Y > 100 and 0.8Y≤X≤0.9Y, it is straight that second gas is first filled with into the cavity with the aeration speed of 1kPa/s
Reach 0.9Y kPa to the intracorporal total aeration quantity of the chamber, second gas is then filled with the aeration speed of 0.5kPa/s until institute
It states total aeration quantity and reaches Y kPa；
As Y > 100 and 0.9Y < X < Y, second gas is filled with into the cavity with the aeration speed of 0.5kPa/s until institute
It states the intracorporal total aeration quantity of chamber and reaches Y kPa.
8. according to claim 1, being used for the insulating gas inflation method of power equipment described in 4 or 5, which is characterized in that in institute
State step S5 further includes later：
After charging the first insulating gas and standing the 4th preset time, start to be filled with the second insulating gas into the cavity,
It is filled with third insulating gas after charging the second insulating gas, and stands at least 12 hours after charging third insulating gas；
Wherein, total aeration quantity of both the first insulating gas and second insulating gas is Y kPa, and the first insulating gas, second are absolutely
Total aeration quantity of edge gas and the second insulating gas three are Z kPa；The compressed coefficient of first insulating gas is compared with second gas
The compressed coefficient further off 1, and the compressed coefficient of the second insulating gas compared with third gas the compressed coefficient further off 1.
9. the insulating gas inflation method according to claim 8 for power equipment, which is characterized in that
It is as Z≤100, then described to start to be filled with the second insulating gas into the cavity, and after charging the second insulating gas
Being filled with third insulating gas is specially：
As 0.8Y > X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until described
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until total inflation
Amount reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until total aeration quantity reaches 0.8Z
KPa is finally filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity reaches Z kPa；
As 0.8Y > X and Y >=0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until described
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until total inflation
Amount reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity reaches Z kPa；
As 0.8Y≤X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until described
The intracorporal total aeration quantity of chamber reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until described always fill
Tolerance reaches 0.8Z kPa, is finally filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity reaches Z
kPa；
As 0.8Y≤X and Y >=0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until described
The intracorporal total aeration quantity of chamber reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 1kPa/s until described always fill
Tolerance reaches Z kPa.
10. the insulating gas inflation method for power equipment according to claim 8 or claim 9, which is characterized in that as Z >
It is when 100, then described to start to be filled with the second insulating gas into the cavity, and it is exhausted after charging the second insulating gas to be filled with third
Edge gas is specially：
As 0.8Y > X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until described
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until total inflation
Amount reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until total aeration quantity reaches 0.8Z
KPa, then with the aeration speed of 1kPa/s be filled with third insulating gas until total aeration quantity reach 0.9Z kPa, finally with
The aeration speed of 0.5kPa/s is filled with third insulating gas until total aeration quantity reaches Z kPa；
As 0.8Y > X and 0.8Z≤Y≤0.9Z, it is straight that second gas is first filled with into the cavity with the aeration speed of 2kPa/s
Reach 0.8Y kPa to the intracorporal total aeration quantity of the chamber, second gas is then filled with the aeration speed of 1kPa/s until described
Total aeration quantity reaches Y kPa, is then filled with third insulating gas with the aeration speed of 1kPa/s until total aeration quantity reaches
0.9Z kPa is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z kPa；
As 0.8Y > X and Y > 0.9Z, second gas is first filled with into the cavity with the aeration speed of 2kPa/s until described
The intracorporal total aeration quantity of chamber reaches 0.8Y kPa, is then filled with second gas with the aeration speed of 1kPa/s until total inflation
Amount reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z
kPa；
As 0.8Y≤X and Y < 0.8Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until described
The intracorporal total aeration quantity of chamber reaches Y kPa, is then filled with third insulating gas with the aeration speed of 2kPa/s until described always fill
Tolerance reaches 0.8Z kPa, then is filled with third insulating gas until total aeration quantity reaches 0.9Z with the aeration speed of 1kPa/s
KPa is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until total aeration quantity reaches Z kPa；
As 0.8Y≤X and 0.8Z≤Y≤0.9Z, it is straight that second gas is first filled with into the cavity with the aeration speed of 1kPa/s
Reach Y kPa to the intracorporal total aeration quantity of the chamber, third insulating gas is then filled with the aeration speed of 1kPa/s until institute
It states total aeration quantity and reaches 0.9Z kPa, third insulating gas is finally filled with the aeration speed of 0.5kPa/s until total inflation
Amount reaches Z kPa；
As 0.8Y≤X and Y > 0.9Z, second gas is first filled with into the cavity with the aeration speed of 1kPa/s until described
The intracorporal total aeration quantity of chamber reaches Y kPa, is finally filled with third insulating gas with the aeration speed of 0.5kPa/s until described total
Aeration quantity reaches Z kPa.
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| CN201810649141.4A CN108870066A (en) | 2018-06-21 | 2018-06-21 | Insulating gas inflation method for power equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685720A (en) * | 2021-08-25 | 2021-11-23 | 国网重庆市电力公司电力科学研究院 | C5-PFK rapid inflation system and inflation method |
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