CN108730761A - Insulation of electrical installation fluorinated mixed gas on-site maintenance device - Google Patents
Insulation of electrical installation fluorinated mixed gas on-site maintenance device Download PDFInfo
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- CN108730761A CN108730761A CN201710267336.8A CN201710267336A CN108730761A CN 108730761 A CN108730761 A CN 108730761A CN 201710267336 A CN201710267336 A CN 201710267336A CN 108730761 A CN108730761 A CN 108730761A
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- Prior art keywords
- control valve
- pipeline
- gas
- fluorinated
- flowmeter
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a kind of insulation of electrical installation fluorinated mixed gas on-site maintenance devices, including the first air accumulator, the second air accumulator, First Heat Exchanger, the second heat exchanger, first flowmeter, second flowmeter, gas mixing units, vacuum pump, electric control unit, multiple control valves and pipeline, control valve is correspondingly arranged on pipeline, for being turned on and off pipeline；Above equipment is connected by pipeline；The flow for the fluorinated gas that first flowmeter detection flows through；Second flowmeter is used to measure the flow of the mixed gas flowed through；Gas mixing units are for mixing the fluorinated gas and the mixed gas；Vacuum pump is connect with electrical equipment gas chamber by pipeline；Electric control unit by control above equipment, control valve electrical connection opening and closing, and obtain the first flowmeter, second flowmeter, electrical equipment density monitor data, realize to the insulation of electrical installation maintenance of fluorinated mixed gas.
Description
Technical field
The invention belongs to maintenance of electric device fields more particularly to a kind of insulation of electrical installation fluorinated gaseous mixture to embody
Field maintenance device.
Background technology
At present apply electric field primary insulation gas be sulfur hexafluoride (SF6), but due to SF6 is《It discusses in capital of a country
Agreement》Defined one of the 6 kinds of greenhouse gases for being prohibited discharge, electric utility in recent years always searches for the replacement of SF6 gases
Gas.Fluorinated mixed gas has been broken through in the use of electric field at present.Fluorinated mixed gas is completely new as one
Research field, temporarily have no relevant standard in industry to define this mixed gas, at present the fluorinated gaseous mixture of mainstream
Body is based on the mixture of the same nitrogen of Minnesota Mining and Manufacturing Company Novec series artificial gas, carbon dioxide etc..
Fluorinated gas inevitably leaks air after a large amount of uses at the scene in the electrical apparatus, micro-water content is super
Mark and other issues just needs what a kind of equipment can be rapidly and efficiently to handle at the scene gas at this time, which will be at
To ensure the important device of substation safety operation.Electrical equipment fluorinated gas maintenance device in the prior art is of high cost,
Efficiency is low, has a single function.
Invention content
That the technical problem to be solved by the present invention is to electrical equipment fluorinated gas maintenance devices in the prior art is of high cost,
It is complicated for operation, efficiency is low, the defect that has a single function, a kind of insulation of electrical installation fluorinated mixed gas on-site maintenance dress is provided
It sets.
The present invention solves above-mentioned technical problem by the following technical programs：A kind of insulation of electrical installation fluorinated gaseous mixture
Field maintenance device is embodied, including the first air accumulator, the second air accumulator, First Heat Exchanger, the second heat exchanger, first flowmeter, the
Two flowmeters, gas mixing units, vacuum pump, the first control valve, the second control valve, third control valve, the 4th control valve, first
Pipeline, second pipe, third pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, electric control unit；
First air accumulator is connect with the First Heat Exchanger by the first pipe, for storing fluorinated liquefaction
Gas；
First control valve is set in the first pipe, for being turned on and off the first pipe；
Second air accumulator is connect with second heat exchanger by the second pipe, for storing mixed liquefaction
Gas；
Second control valve is set on the second pipe, for being turned on and off the second pipe；
The First Heat Exchanger is connect with the gas mixing units by the third pipeline；
The first flowmeter is set on the third pipeline, the flow for measuring the fluorinated gas flowed through；
Second heat exchanger is connect with the gas mixing units by the 4th pipeline；
The second flowmeter is set on the 4th pipeline, the flow for measuring the mixed gas flowed through；
The gas mixing units are connect with the vacuum pump by the 5th pipeline, for mixing the fluorinated gas
Body and the mixed gas；
The third control valve is set on the 5th pipeline, for being turned on and off the 5th pipeline；
The vacuum pump is connect with electrical equipment gas chamber by the 6th pipeline；
4th control valve is set on the 6th pipeline, for being turned on and off the 6th pipeline；
The electric control unit respectively with the First Heat Exchanger, the second heat exchanger, first flowmeter, second flow
The density monitor electricity of meter, vacuum pump, the first control valve, the second control valve, third control valve, the 4th control valve, electrical equipment
Connection, for controlling First Heat Exchanger, the second heat exchanger, first flowmeter, second flowmeter, vacuum pump, the first control respectively
Valve, the second control valve, third control valve, the 4th control valve are turned on and off, and obtain the first flowmeter, second flow
It counts, the data of the density monitor of electrical equipment.
Preferably, the electric control unit also controls the first control valve, the second control valve, third control valve, the 4th control
The flow velocity of valve processed in the on state.
Preferably, the mixed liquid gas includes liquid carbon dioxide or liquid nitrogen.
Preferably, the fluorinated mixed gas on-site maintenance device also includes chromatograph, the 7th pipeline, the 5th control
Valve processed, the chromatograph is connect with the vacuum pump by the 7th pipeline, for analyzing various gas in mixed gas
The ratio of body, the 5th control valve are set on the 7th pipeline, for being turned on and off the 7th pipeline；
The electric control unit is electrically connected with the chromatograph, the 5th control valve, described for being turned on and off
Chromatograph, the 5th control valve, and the flow velocity of the 5th control valve in the on state is controlled, and obtain the chromatograph
Data.
Preferably, the gas mixing units include agitating device, for being stirred during gas mixing；It is described
Electric control unit is electrically connected with the agitating device, for being turned on and off the agitating device.
Preferably, the fluorinated mixed gas on-site maintenance device also includes gas dry and impurity treatment unit, pressure
Contracting machine, freezing machine, the 8th pipeline, the 9th pipeline, the tenth pipeline, the 11st pipeline, the 12nd pipeline, the 6th control valve, the 7th
Control valve, the 8th control valve；
The gas dry is connect with impurity treatment unit with the vacuum pump by the 8th pipeline, for mixing
Gas is dried and removes impurity；
6th control valve is set on the 8th pipeline, for being turned on and off the 8th pipeline；
The compressor is connect with the gas dry with impurity treatment unit by the 9th pipeline；
The freezing machine is connect with the compressor by the tenth pipeline, for cooling down mixed gas；
The freezing machine is connect with the First Heat Exchanger by the 11st pipeline；
7th control valve is set on the 11st pipeline, for being turned on and off the 11st pipeline；
The freezing machine is connect with second heat exchanger by the 12nd pipeline；
8th control valve is set on the 12nd pipeline, for being turned on and off the 12nd pipeline；
The electric control unit and the compressor, freezing machine, the 6th control valve, the 7th control valve, the 8th control valve
Electrical connection, for being turned on and off the compressor, freezing machine, the 6th control valve, the 7th control valve, the 8th control valve.
The positive effect of the present invention is that：The insulation of electrical installation fluorinated mixed gas on-site maintenance of the present invention
Device is easy to operate, efficient, and can complete that ratio of gas mixture measures, mixed gas supplement, mixed gas are dry, impurity is gone
Remove, mixed gas separation and recycling etc. multiple functions, substantially reduce insulation of electrical installation fluorinated mixed gas on-site maintenance
Cost.
Description of the drawings
Fig. 1 is that the structure of the insulation of electrical installation fluorinated mixed gas on-site maintenance device of the embodiment of the present invention 1 is shown
It is intended to.
Fig. 2 is that the structure of the insulation of electrical installation fluorinated mixed gas on-site maintenance device of the embodiment of the present invention 2 is shown
It is intended to.
Fig. 3 is that the structure of the insulation of electrical installation fluorinated mixed gas on-site maintenance device of the embodiment of the present invention 3 is shown
It is intended to.
Specific implementation mode
It is further illustrated the present invention below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
Embodiment 1
As shown in Figure 1, the insulation of electrical installation of the present embodiment fluorinated mixed gas on-site maintenance device includes first
Air accumulator 11, the second air accumulator 12, First Heat Exchanger 21, the second heat exchanger 22, first flowmeter 31, second flowmeter 32, gas
Body mixed cell 41, vacuum pump 42, the first control valve 501, the second control valve 502, third control valve 503, the 4th control valve
504, first pipe 601, second pipe 602, third pipeline 603, the 4th pipeline 604, the 5th pipeline 605, the 6th pipeline 606,
Electric control unit 43；
First air accumulator 11 is connect with First Heat Exchanger 21 by first pipe 601, for storing fluorinated liquid gas.
Preferably, the fluorinated liquid gas includes the Minnesota Mining and Manufacturing Company Novec series artificial gas of liquid；
First control valve 501 is set in first pipe 601, for being turned on and off first pipe 601；
Second air accumulator 12 is connect with the second heat exchanger 22 by second pipe 602, for storing mixed liquid gas.
Preferably, the mixed liquid gas includes liquid carbon dioxide or liquid nitrogen；
Second control valve 502 is set on second pipe 602, for being turned on and off second pipe 602；
First Heat Exchanger 21 is connect with gas mixing units 41 by third pipeline 603；
First flowmeter 31 is set on third pipeline 603, the flow for measuring the fluorinated gas flowed through；
Second heat exchanger 22 is connect with gas mixing units 41 by the 4th pipeline 604；
Second flowmeter 32 is set on the 4th pipeline 604, the flow for measuring the mixed gas flowed through；
Gas mixing units 41 are connect with vacuum pump 42 by the 5th pipeline 605, for mix the fluorinated gas and
Mixed gas；
Third control valve 503 is set on the 5th pipeline 605, for being turned on and off the 5th pipeline 605；
Vacuum pump 42 is connect with electrical equipment gas chamber 101 by the 6th pipeline 606, and being used for will be in gas mixing units 41
Gas is filled with electrical equipment gas chamber 101；
4th control valve 504 is set on the 6th pipeline 606, for being turned on and off the 6th pipeline 606；
Electric control unit 43 respectively with First Heat Exchanger 21, the second heat exchanger 22, first flowmeter 31, second flowmeter
32, vacuum pump 42, the first control valve 501, the second control valve 502, third control valve 503, the 4th control valve 504, electrical equipment
Density monitor 102 be electrically connected, for respectively control First Heat Exchanger 21, the second heat exchanger 22, first flowmeter 31, second
Flowmeter 32, vacuum pump 42, the first control valve 501, second control valve 502, third control valve 503, the 4th control valve 504 are opened
Open or close, and obtain first flowmeter 31, second flowmeter 32, electrical equipment density monitor 102 data.
It, can be right when carrying out on-site maintenance to electrical equipment using the fluorinated mixed gas on-site maintenance device of the present embodiment
The electrical equipment that gas chamber has been in high vacuum state is inflated operation, and steps are as follows：
S1, by the air inlet/outlet of 606 end of the 6th pipeline of the fluorinated mixed gas on-site maintenance device of the present embodiment
It is connected with the air inlet/outlet of electrical equipment gas chamber 101.
The specified gas ratio and rated pressure value of S2, the electrical equipment gas chamber shown according to electrical equipment nameplate, by this
Specified gas ratio and rated pressure value input electric control unit, and input operation instruction (inflation to electric control unit
Instruction).
S3, first control valve 501 of the unlatching of electric control unit 43, the second control valve 502, First Heat Exchanger 21, second are changed
Hot device 22, the fluorinated liquid gas in the first air accumulator 11 reach First Heat Exchanger 21, the first heat exchange by first pipe 601
Device 21 absorbs heat from the external world, converts the fluorinated liquid gas to gaseous state, the fluorinated gas by third pipeline 603 into
Enter gas mixing units 41, the mixed liquid gas in the second air accumulator 12 reaches the second heat exchanger by second pipe 602
22, the second heat exchanger 22 absorbs heat from the external world, converts the mixed liquid gas to gaseous state, and the mixed gas is by the
Four pipelines 604 enter gas mixing units 41, and first flowmeter 31 detects the volume of the fluoro-gas flowed through, second flowmeter 32
The volume of the mixed gas flowed through is detected, electric control unit 41 obtains the number of first flowmeter 31 and second flowmeter 32
According to control the first control valve 501, second control valve 502 is turned on and off, and makes the gas symbol for being filled with gas mixing units 41
Close specified ratio.Preferably, electric control unit 43 also controls the first control valve 501, the second control valve 502 is in open state
Flow velocity when lower makes the gas for being filled with gas mixing units 41 meet specified ratio.For example, electric control unit 43 opens first
Control valve 501 is filled with mL (liter) fluorinated gases into gas mixing units 41 from the first air accumulator 11 and (has been subjected to the first heat exchange
Device 21 is converted into gaseous state), when the numerical value that first flowmeter 31 is fed back reaches desired value mL, electric control unit 43 closes first
Control valve 501；Electric control unit 43 opens the second control valve 502, is filled from the second air accumulator 12 into gas mixing units 41
Enter to meet the nL CO of specified ratio2Or N2Gas (has been subjected to the second heat exchanger 22 and is converted into gaseous state), waits for that second flowmeter 32 is anti-
When the numerical value of feedback reaches desired value nL, electric control unit 43 closes the second control valve 502.Above-mentioned fluoro-gas and CO2Or N2Gas
Body is filled with no sequencing requirement, can be filled with simultaneously.
When executing this step every time, the value of above-mentioned m, n can configure as needed.
S4, the above-mentioned mL fluoro-gas for meeting specified ratio and nL CO2Or N2Mixing of the gas in gas mixing units 41
A period of time is stood in gas container chamber, so that two kinds of gas mixings are uniform.It is stirred preferably, being provided in gas mixing units 41
Device 411 is mixed, the mixing for accelerating gas；Electric control unit 43 is electrically connected with agitating device 411, for being turned on and off
Agitating device 411.During gas mixing, electric control unit 43 opens agitating device 411, accelerates gas mixing, reduces
Time needed for standing.Preferably, gas mixing units 41 include the pipeline with spiral agitator, fluorinated gas and CO2
Or N2After gas enters the pipeline, electric control unit 43 opens the spiral agitator, and gas mixes in pipeline, in this way
The time of standing can be saved.
S5, electric control unit 43 open third control valve 503 and the 4th control valve 504, and open vacuum pump 42, by true
Gas in gas mixing units 41 is filled with electrical equipment gas chamber 101 by sky pump 42.Then, electric control unit 43 closes third
Control valve 503 and the 4th control valve 504, and close vacuum pump 42.
After being filled with (m+n) L gases in S6, electrical equipment gas chamber 101, electric control unit 43 obtains the density of electrical equipment
The pressure for the electrical equipment gas chamber 101 that relay 102 detects, and according to the volume for being filled with gas and the pressure being filled with before and after gas
Force difference calculates and reaches fluoro-gas and CO that rated pressure and specified ratio should be filled with2Or N2The target volume of gas.
S7, S1-S6 is repeated, until being filled with the fluoro-gas and CO of electrical equipment gas chamber 1012Or N2Gas reaches objective body
Product, electric control unit 43 closes all control valves, and closes vacuum pump 42, First Heat Exchanger 21, the second heat exchanger 22.Inflation
End of operation.
Embodiment 2
The insulation of electrical installation of the present embodiment fluorinated mixed gas on-site maintenance device is as shown in Fig. 2, itself and implementation
Difference lies in the electrical equipment of the present embodiment is exhausted with fluorinated mixed gas on-site maintenance device for the insulation of electrical installation of example 1
Edge also includes chromatograph 44, the 7th pipeline 607, the 5th control valve 505, color with fluorinated mixed gas on-site maintenance device
Spectrum analysis instrument 44 is connect with vacuum pump 42 by the 7th pipeline 607, the ratio for analyzing various gases in mixed gas, and the 5th
Control valve 505 is set on the 7th pipeline 607, for being turned on and off the 7th pipeline 607；
Electric control unit 43 is electrically connected with chromatograph 44, the 5th control valve 505, for being turned on and off chromatography point
Analyzer 44, the 5th control valve 505, and the flow velocity of the 5th control valve 505 in the on state is controlled, and obtain chromatograph 44
Data.
When gas leakage occurs for electrical equipment gas chamber, the insulation of electrical installation fluorinated mixed gas of the present embodiment can be used
On-site maintenance device carries out tonifying Qi operation to electrical equipment gas chamber, and steps are as follows：
S21, by the air inlet/outlet of 606 end of the 6th pipeline of the fluorinated mixed gas on-site maintenance device of the present embodiment
It is connected with the air inlet/outlet of electrical equipment gas chamber 101.
The specified gas ratio and rated pressure value of S22, the electrical equipment gas chamber shown according to electrical equipment nameplate, by this
Specified gas ratio and rated pressure value input electric control unit, and input operation instruction (tonifying Qi to electric control unit
Instruction).
S23, electric control unit 43 open the 4th control valve 504, the 5th control valve 505, and open vacuum pump 42, vacuum
Pump 42 extracts a small amount of mixed gas out to chromatograph 44 from electrical equipment gas chamber 101.
S24, electric control unit 43 open the ratio that chromatograph 44 detects mixed gas, which as electrically sets
The ratio value of original gas in standby gas chamber 101.Electric control unit 43 obtains the ratio value of the original gas, and obtains electricity
The indoor pressure value of electrical equipment gas that the density monitor 102 of gas equipment detects, in the present embodiment, which is referred to as electrical
The reset pressure value of equipment gas chamber.
S25, according to the ratio value Yu specified ratio value of original gas in the gas chamber 101 of electrical equipment, if it is fluorinated
Air leakage is more serious, then the fluorinated gas that certain volume (being assumed to be aL) is filled with into electrical equipment gas chamber 101 (was inflated
Journey is similar to Example 1, repeats no more)；If mixed air leakage than more serious, is filled into electrical equipment gas chamber 101
Enter the mixed gas (CO of certain volume (being assumed to be bL)2Or N2).Inflation finishes, and electric control unit 43 closes all controls
Valve.
When executing this step every time, the value of above-mentioned a, b can be arranged as required to.
S26, electric control unit 43 obtain in the electrical equipment gas chamber 101 of the detection of density monitor 102 of electrical equipment
Current pressure values, and according to the current pressure values, the volume aL of the ratio value of original gas, specified ratio value, the gas being filled with,
Calculate the volume of the volume and mixed gas of the fluorinated gas for needing to be filled with.
S27, according to the volume of the calculated volume and mixed gas of fluorinated gas for needing to be filled with of S26 steps,
It is inflated operation according to the correlation step in embodiment 1, you can complete tonifying Qi operation.
Embodiment 3
The insulation of electrical installation of the present embodiment fluorinated mixed gas on-site maintenance device is as shown in figure 3, itself and implementation
Difference lies in the electrical equipment of the present embodiment is exhausted with fluorinated mixed gas on-site maintenance device for the insulation of electrical installation of example 2
Edge also includes gas dry and impurity treatment unit 45, compressor 46, freezing machine with fluorinated mixed gas on-site maintenance device
47, the 8th pipeline 608, the 9th pipeline 609, the tenth pipeline 610, the 11st pipeline 611, the 12nd pipeline 612, the 6th control valve
506, the 7th control valve 507, the 8th control valve 508；
Gas dry is connect with impurity treatment unit 45 with vacuum pump 42 by the 8th pipeline 608, for mixed gas
It is dried and removes impurity；
6th control valve 506 is set on the 8th pipeline 608, for being turned on and off the 8th pipeline 608；
Compressor 46 is connect with gas dry with impurity treatment unit 45 by the 9th pipeline 609；
Freezing machine 47 is connect with compressor 46 by the tenth pipeline 610, for cooling down mixed gas；
Freezing machine 47 is connect with First Heat Exchanger 21 by the 11st pipeline 611；
7th control valve 507 is set on the 11st pipeline 611, for being turned on and off the 11st pipeline 611；
Freezing machine 47 is connect with the second heat exchanger 22 by the 12nd pipeline 612；
8th control valve 508 is set on the 12nd pipeline 612, for being turned on and off the 12nd pipeline 612；
Electric control unit 43 is controlled with compressor 46, freezing machine 47, the 6th control valve 506, the 7th control valve the 507, the 8th
Valve 508 processed is electrically connected, for being turned on and off compressor 46, freezing machine 47, the 6th control valve 506, the 7th control valve 507, the
Eight control valves 508.
For the indoor gas of electrical equipment gas, the insulation of electrical installation fluorinated gaseous mixture of the present embodiment can be used
It embodies field maintenance device to be dried, remove impurity, separation and recycling, operating procedure is as follows：
S31, electric control unit 43 open the 4th control valve 504, the 6th control valve 506, compressor 46, freezing machine 47,
First Heat Exchanger 21, the second heat exchanger 22, and vacuum pump 42 is opened, vacuum pump 42 passes through the gas in electrical equipment gas chamber 101
It crosses the 6th pipeline 606 and the 8th pipeline 608 is pumped into gas dry and impurity treatment unit 45.
Mixed gas is dried and removes impurity in S32, gas dry and impurity treatment unit 45.
Mixed gas after S33, drying and removal impurity enters compressor 46 by the 9th pipeline 609, and compressor 46 will
Mixed gas is compressed.
S34, compressed mixed gas enter freezing machine 47 by the tenth pipeline 610, and freezing machine 47 is to compressed mixed
Gas condensation is closed, First Heat Exchanger 21 and the second heat exchanger 22 incite somebody to action this during the compressed Mixed Gas Condensation
The heat of the fluorinated mixed gas on-site maintenance device of embodiment outwardly discharges.
S35, the compressed mixed gas temperature is dropped into the condensation point of fluorinated gas or less when freezing machine 47
And when more than the condensation point of the entrained gas, the fluorinated gas transition is liquid, and freezing machine 47 keeps the temperature, electricity
Gas control unit 43 opens the 7th control valve 507 and the first control valve 501, and the fluorinated gas of the liquid is by the 11st pipe
Road 611, first pipe 601 enter the first air accumulator 11.
S36, when there is no the fluorinated gas transition be liquid, electric control unit 43 close the 7th control valve 507
With the first control valve 501, electric control unit 43, which controls freezing machine 47, reduces temperature to the entrained gas (CO2Or N2)
Condensation point is hereinafter, the mixed gas (CO2Or N2) it is changed into liquid, electric control unit 43 opens the 8th control valve 508
With the second control valve 502, the mixed gas (CO of the liquid2Or N2) by the 12nd pipeline 612, second pipe 602 into
Enter the second air accumulator 12.
S37, when there is no the mixed gas (CO2Or N2) it is changed into liquid, electric control unit 43 closes the 8th
Control valve 508, the second control valve 502, the 4th control valve 504, the 6th control valve 506, vacuum pump 42, compressor 46, freezing machine
47, First Heat Exchanger 21, the second heat exchanger 22.Gas recycling terminates.
The insulation of electrical installation fluorinated mixed gas on-site maintenance device of the present embodiment can be according to 1 institute of embodiment
It states, for being inflated to electrical equipment gas chamber；It can also be according to described in embodiment 2, for being mended to electrical equipment gas chamber
Gas.
Embodiment 4
The insulation of electrical installation of the present embodiment is as shown in Figure 3 with fluorinated mixed gas on-site maintenance device.Use this reality
Apply the insulation of electrical installation fluorinated mixed gas on-site maintenance device of example, be the more serious electrical equipment of gas chamber gas leakage into
Row tonifying Qi operates, and can carry out in accordance with the following steps：
S41, according to step described in embodiment 3, electrical equipment gas chamber is vacuumized, and mixed gas is divided
From, recycling.
S42, according to step described in embodiment 1, operation is inflated to electrical equipment gas chamber.
It is electrical equipment gas chamber using the insulation of electrical installation fluorinated mixed gas on-site maintenance device of the present embodiment
When being inflated operation, the fluorinated mixed gas on-site maintenance device electric control unit 43 for opening the present embodiment obtains electrically
The pressure value that density monitor 102 in equipment detects, if vacuum degree is not high enough in electrical equipment gas chamber, by electrical control
Unit 43 opens vacuum pump 42 and extracts gas in electrical equipment gas chamber 101 out, to reach high vacuum.If in electrical equipment gas chamber
There is the residual of fluorinated gas, then tonifying Qi operation can be carried out to electrical equipment gas chamber according to above-mentioned steps S41, S42.If electric
It is outwardly discharged by vacuum pump 42, is then pressed for air or the gas harmless to air, the then gas extracted out in gas equipment gas chamber
Operation is inflated to electrical equipment according to step described in embodiment 1.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (7)
1. a kind of insulation of electrical installation fluorinated mixed gas on-site maintenance device, which is characterized in that comprising the first air accumulator,
Second air accumulator, First Heat Exchanger, the second heat exchanger, first flowmeter, second flowmeter, gas mixing units, vacuum pump,
One control valve, the second control valve, third control valve, the 4th control valve, first pipe, second pipe, third pipeline, the 4th pipe
Road, the 5th pipeline, the 6th pipeline, electric control unit；
First air accumulator is connect with the First Heat Exchanger by the first pipe, for storing fluorinated liquefied gas
Body；
First control valve is set in the first pipe, for being turned on and off the first pipe；
Second air accumulator is connect with second heat exchanger by the second pipe, for storing mixed liquefied gas
Body；
Second control valve is set on the second pipe, for being turned on and off the second pipe；
The First Heat Exchanger is connect with the gas mixing units by the third pipeline；
The first flowmeter is set on the third pipeline, the flow for measuring the fluorinated gas flowed through；
Second heat exchanger is connect with the gas mixing units by the 4th pipeline；
The second flowmeter is set on the 4th pipeline, the flow for measuring the mixed gas flowed through；
The gas mixing units are connect with the vacuum pump by the 5th pipeline, for mix the fluorinated gas and
The mixed gas；
The third control valve is set on the 5th pipeline, for being turned on and off the 5th pipeline；
The vacuum pump is connect with electrical equipment gas chamber by the 6th pipeline；
4th control valve is set on the 6th pipeline, for being turned on and off the 6th pipeline；
The electric control unit respectively with the First Heat Exchanger, the second heat exchanger, first flowmeter, second flowmeter, true
The density monitor electrical connection of empty pump, the first control valve, the second control valve, third control valve, the 4th control valve, electrical equipment,
For controlling First Heat Exchanger, the second heat exchanger, first flowmeter, second flowmeter, vacuum pump, the first control valve, respectively
Two control valves, third control valve, the 4th control valve are turned on and off, and obtain the first flowmeter, second flowmeter, electricity
The data of the density monitor of gas equipment.
2. fluorinated mixed gas on-site maintenance device as described in claim 1, which is characterized in that the electric control unit
Also control the first control valve, the second control valve, third control valve, the flow velocity of the 4th control valve in the on state.
3. fluorinated mixed gas on-site maintenance device as described in claim 1, which is characterized in that the mixed liquefied gas
Body includes liquid carbon dioxide or liquid nitrogen.
4. fluorinated mixed gas on-site maintenance device as described in claim 1, which is characterized in that the fluorinated gaseous mixture
It includes chromatograph, the 7th pipeline, the 5th control valve, the chromatograph and the vacuum pump to embody field maintenance device also
It is connected by the 7th pipeline, the ratio for analyzing various gases in mixed gas, the 5th control valve is set to institute
It states on the 7th pipeline, for being turned on and off the 7th pipeline；
The electric control unit is electrically connected with the chromatograph, the 5th control valve, for being turned on and off the chromatography
Analyzer, the 5th control valve, and the flow velocity of the 5th control valve in the on state is controlled, and obtain the number of the chromatograph
According to.
5. fluorinated mixed gas on-site maintenance device as described in claim 1, which is characterized in that the gas mixing units
Including agitating device, for being stirred during gas mixing；The electric control unit is electrically connected with the agitating device
It connects, for being turned on and off the agitating device.
6. fluorinated mixed gas on-site maintenance device as described in claim 1, which is characterized in that the fluorinated gaseous mixture
Embody field maintenance device also and include gas dry and impurity treatment unit, compressor, freezing machine, the 8th pipeline, the 9th pipeline, the
Ten pipelines, the 11st pipeline, the 12nd pipeline, the 6th control valve, the 7th control valve, the 8th control valve；
The gas dry is connect with impurity treatment unit with the vacuum pump by the 8th pipeline, for mixed gas
It is dried and removes impurity；
6th control valve is set on the 8th pipeline, for being turned on and off the 8th pipeline；
The compressor is connect with the gas dry with impurity treatment unit by the 9th pipeline；
The freezing machine is connect with the compressor by the tenth pipeline, for cooling down mixed gas；
The freezing machine is connect with the First Heat Exchanger by the 11st pipeline；
7th control valve is set on the 11st pipeline, for being turned on and off the 11st pipeline；
The freezing machine is connect with second heat exchanger by the 12nd pipeline；
8th control valve is set on the 12nd pipeline, for being turned on and off the 12nd pipeline；
The electric control unit is electrically connected with the compressor, freezing machine, the 6th control valve, the 7th control valve, the 8th control valve
It connects, for being turned on and off the compressor, freezing machine, the 6th control valve, the 7th control valve, the 8th control valve.
7. fluorinated mixed gas on-site maintenance device as claimed in claim 5, which is characterized in that the agitating device includes
Spiral agitator.
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| CN110768154A (en) * | 2019-11-15 | 2020-02-07 | 广州供电局有限公司 | Single-component gas supplementing method for mixed gas of gas insulation equipment |
| CN111306449A (en) * | 2019-12-24 | 2020-06-19 | 国网新疆电力有限公司吐鲁番供电公司 | Micro-water monitoring and processing system for GIS (gas insulated switchgear) transformer substation |
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