CN206282679U - Sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer leakage - Google Patents
Sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer leakage Download PDFInfo
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- CN206282679U CN206282679U CN201621410398.7U CN201621410398U CN206282679U CN 206282679 U CN206282679 U CN 206282679U CN 201621410398 U CN201621410398 U CN 201621410398U CN 206282679 U CN206282679 U CN 206282679U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
Sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer leakage, including online sulfur hexafluoride leakage alarm, self-closed bleeding point device, mixed gas pump drainage pipeline, circulation filtering pipeline, air separates return pipeline, gas recovery double purification pipeline and portable sulfur hexafluoride reclaiming clean device, online sulfur hexafluoride leakage alarm is arranged in pressure change chamber, rectangular air-vent is offered on the floor of pressure change chamber, self-closed bleeding point device is located at the floor lower section of pressure change chamber and is arranged on air-vent outside, the outlet side that the inlet end and air of mixed gas pump drainage pipeline separate return pipeline is connected by self-closed bleeding point device with air-vent；When there is leakage accident, the utility model realizes SF in space6The filtering of gas and its derivative, the SF that reclaim and will reclaim6The large quantity of air simple separation mixed in gas, and by the function of the gas storage after separation, meet the provisions of laws and regulations that emergency plan for accidents occurs.
Description
Technical field
The utility model belongs to transformer safety running technology field, more particularly to a kind of leakage of underground substation transformer
Sulfur hexafluoride gas Emergency recovery cleaning system afterwards.
Background technology
As the Development of Urbanization of China, big city population are more intensive, skyscraper stands in great numbers, and power consumption is sharply increased,
Number transformer is also being continuously increased, and traditional Large Copacity oil-filled transformer oil mass is big, once barrier easily catches fire for some reason, and will be to height
The security of the lives and property of layer building and people constitutes serious threat.Therefore, the six-component force balance after the sixties in last century
Transformer is obtained a wide range of applications in Urban Underground transformer station of China.Compare with traditional filling transformer, SF6Transformer has
Clear advantage：Due to SF6The non-combustible and not combustion-supporting property of gas, SF6Gas does not have the potentially possible of fire, and noise is low, special
It is not adapted to be used in bustling commercial center and densely populated residential block.Such as Beijing, Shanghai, Guangzhou is populous, land used
Nervous High-Density Urban Area all has underground substation, wherein the six-component force balance for being exactly application becomes electrical equipment.
With the development of the city, people are more next to the requirement such as Supply Security, power supply reliability and city environmental protection
Higher, this requires that people have corresponding prevention emergency processing means to the failure of six-component force balance transformer, prevents pernicious
The generation of accident.
SF6Gas-insulated performance is although superior, but, strict quality prison must be carried out to it according to related regulatory requirements
Superintend and direct and safety management.Because SF6Gas is in its production process or in the presence of the high energy factor, if generation can be decomposed
Poisonous or even hypertoxic, severe corrosive objectionable impurities is done, when there is moisture, air in system（Oxygen）, electrode material, equipment and materials
Deng, then can cause the complication of decomposable process, causing the value volume and range of product of catabolite substantially increases, and its harmfulness also significantly adds
Greatly.
SF6A series of chemical equations that gas occurs under high temperature, arcing are as follows：
SF6The harm of gaseous impurity is mainly manifested in the toxicity and corrosivity of its catabolite, SF6Impurity in gas
And catabolite middle acid substance particularly HF, SO2Presence can cause the corrosion of sulfur hexafluoride insulation electrical equipment material；Water
The presence for dividing, may cause electric property to deteriorate under certain condition（The various electric arc analytes and SF of sulfur hexafluoride gas6Gas
Body produces hydrogen fluoride by hydrolysis（HF）And sulfuric acid（H2SO4）, corrosiveness can be produced to some metal objects and insulating part, and then
Produce the service life of leakage contribution electrical equipment）, or even cause serious equipment breakdown.And present in sulfur hexafluoride such as
SF4、SOF2、SF2、SO2F2, HF etc. be toxicity and the extremely strong compound of corrosivity, it is very big to harm, and be possible to cause
Pernicious personal injury.
Due to reasons such as six-component force balance transformer manufacturing quality, mounting process, the aging, the blowing pressures of potted component,
The leakage of SF6 gases is difficult to avoid that in six-component force balance transformer.Six-component force balance transformer is once leaked
Failure, the sulfur hexafluoride gas in it substantial amounts of will be escaped, and low layer is empty indoors for the SF6 gases and its analyte for leaking out
Between gather, cause ischaemia and band poison, the health to the maintenance that gets in and tour personnel constitutes serious infringement.
When six-component force balance transformer occurs the emergencies such as a large amount of leakages, the common processing method of transformer station is,
After leakage alarm sends warning, staff should rapidly withdraw scene, if there is installation site indoors, answer in opening chamber and lead to
Wind apparatus are by between indoor sulfur hexafluoride gas.Do not wear a gas mask or positive-pressure air respirator personnel no admittance.
Only by sufficient natural exhaust or pressure air draft, and by SF6Leakage monitoring system monitors SF6Gas, oxygen content reach
Timestamp, personnel are just accurate to be entered.
But if the underground substation six-component force balance transformer positioned at down town occurs leakage failure, above-mentioned place ought to
Very improper to scheme, down town is dense population areas, if underground substation is still selected after there is leakage failure
With the measure of ventilation, it will cause serious consequence, SF6The complicated decomposition produced in gas and equipment During Process of Long-term Operation is produced
Thing will pollute ground air, such as SF4、SOF2、SF2、SO2F2, HF etc. be toxicity and the extremely strong compound of corrosivity, can be right
Ground crowd produces body to endanger, and is possible to cause pernicious personal injury.
So, underground substation six-component force balance transformer once breaks down, in a short period of time to interior
Sulfur hexafluoride gas in space are reclaimed, and store it in wait subsequent treatment in container, to make gas leak thing
Therefore scene is rapidly achieved the state that can be rushed to repair.
（Subsequent treatment, according to the relevant laws and regulations of power industry, otherwise the sulfur hexafluoride gas in electrical equipment reclaim profit again
With, or discharge." to the sulfur hexafluoride gas to be recycled, purified treatment need to be carried out, can made after reaching new gas standard
With.To discharge waste gas, need to make purified treatment in advance（Such as using the method for Alkali absorption）, after reaching national environmental protection required standard, side
Can discharge.”《Sulfur hexafluoride analytical technology》）
Do not only have sulfur hexafluoride gas in the space of underground substation six-component force balance transformer leakage failure and its divide
Solution thing, also substantial amounts of air, SF6Analyte in gas can be removed it using methods such as filtering, absorption, in space
SF6Gas（General content is 5%-10%）And large quantity of air（More than 90%）Mixing, due to air do not allow it is compressible（Air faces
Boundary's pressure is 37.69MPa, and critical-temperature is 132.45K；SF645.55 DEG C of the critical-temperature of gas, critical pressure is
3.759MPa）, it is difficult to mixed gas are liquefied, if not removing air will cause the volume of the mixed gas after compression very
Greatly, storage container is a lot, and many troubles are brought to follow-up treatment.
At this stage, for underground substation SF6Mixed gas meets an urgent need back in insulating transformer Sudden Leakage failure rear chamber
Receiving unit, both at home and abroad also without related product.
Utility model content
The utility model is in order to solve weak point of the prior art, there is provided one kind is reasonable in design, be easy to operation, safety
Sulfur hexafluoride gas Emergency recovery cleaning system after reliable underground substation transformer leakage.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：After underground substation transformer leakage
Sulfur hexafluoride gas Emergency recovery cleaning system, including it is online sulfur hexafluoride leakage alarm, self-closed bleeding point device, mixed
Close gas pump drainage pipeline, air and separate return pipeline, gas recovery double purification pipeline and portable sulfur hexafluoride reclaiming clean
Device, online sulfur hexafluoride leakage alarm is arranged in pressure change chamber, and rectangular air-vent is offered on the floor of pressure change chamber,
Self-closed bleeding point device is located at the floor lower section of pressure change chamber and is arranged on air-vent outside, and mixed gas pump drainage pipeline enters
The outlet side that gas end and air separate return pipeline is connected by self-closed bleeding point device with air-vent；
Electric butterfly valve, toxic and harmful are disposed with advance by inlet end to outlet side on mixed gas pump drainage pipeline
Reason retracting device, centrifugal blower, whirlpool compressor, water separation device, preceding buffer tank, the first magnetic valve, air separator, second
It is magnetic valve, the first check valve, rear buffer tank, the 3rd magnetic valve, expansion joint, the first pressure regulation needle-valve, the first compressor, second unidirectional
Valve, the 4th magnetic valve and sulfur hexafluoride gas storage device；
Air separator is provided with mixed gas import, sulfur hexafluoride gas outlet, recyclegas outlet and air discharge
Mouthful, mixed gas import and the sulfur hexafluoride gas outlet on air separator are connected on mixed gas pump drainage pipeline, air
The inlet end for separating return pipeline is connected with the air outlet of air separator, and air separation return pipeline is by inlet end to going out
Gas end is disposed with the 3rd check valve, the 5th magnetic valve and air blower；
Sulfur hexafluoride gas storage device includes being sequentially connected in series six holding vessels on mixed gas pump drainage pipeline, adjacent
The 6th magnetic valve is equipped with mixed gas pump drainage pipeline between two holding vessels, is equipped with least on each holding vessel
One spare interface, each holding vessel top is equipped with a first pressure table and first safety valve, mixed gas pump drainage
The first detection pipe and recovery tube are connected with the holding vessel that the outlet side of pipeline is connected, the first detection pipe is provided with second
Pressure regulation needle-valve, the end of the first detection pipe is provided with the first quick connector, recovery tube is provided with the 3rd pressure regulation needle-valve, and recovery tube goes out
Gas end is connected with the inlet end of portable sulfur hexafluoride reclaiming clean device；
A double purification branch pipe is respectively connected with the top of six holding vessels, one is equipped with every double purification branch pipe
Series connection, gas recovery double purification are responsible in 7th magnetic valve, the outlet side of six roots of sensation double purification branch pipe by a double purification
The inlet end of pipeline and double purification supervisor be connected, and the outlet side of gas recovery double purification pipeline is connected to preceding buffer tank and the
On mixed gas pump drainage pipeline between one magnetic valve, the 8th magnetic valve is provided with gas recovery double purification pipeline.
Also include circulation filtering pipeline, inlet end and the recyclegas outlet on air separator of circulation filtering pipeline connect
Connect, the outlet side of circulation filtering pipeline is connected on the mixed gas pump drainage pipeline between centrifugal blower and whirlpool compressor, is followed
Ring filter pipeline is provided with the 4th check valve.
Buffer tank top is provided with a second pressure table and second safety valve afterwards, and the second inspection is connected with rear buffer tank
Test tube, the second detection pipe is provided with the 4th pressure regulation needle-valve, and the end of the second detection pipe is provided with the second quick connector.
The second compressor with the first compressor parallel is connected with mixed gas pump drainage pipeline.
Self-closed bleeding point device includes four adjustable height supporting legs, and four adjustable height supporting leg upper ends are fixed and set
A rectangular underframe is equipped with, some root posts are vertically provided with underframe, all of column upper end has been fixedly connected with
One width is equal to underframe and length is less than the upper frame of underframe, is provided with positioned at adjacent upright posts between upper frame and underframe
Between hound, upper frame is corresponding with surrounding on the outside of underframe to be fixed with two block length risers and two pieces of short risers, riser long
Length of the length more than air-vent, the length of short riser more than air-vent width, two block length risers and two pieces of short risers
Upper edge is kept flushing and being provided with rubber weather strip on a circle, and upper rubber weather strip is sealed with the lower surface on the floor of pressure change chamber
Connect and around air-vent；
Mounting bracket is provided with the outside of one piece of short riser on underframe, is offered on another piece of short riser on underframe
Inlet end and air for connecting mixed gas pump drainage pipeline separate the mounting hole of the outlet side of return pipeline, mounting bracket top
Rotation is provided with fixed pulley, and mounting bracket outer lower portion is fixed with motor and speed reducer, clutch end and the reductor of motor
Power intake is connected, and the clutch end of reductor is coaxial to be provided with reel, and drawstring is wound with reel；Underframe
The cross bar being fixedly connected with short riser lower edge is inside provided with, underframe two sides bottom more long is along the distance between two cross bars
It is uniformly provided with some to engaging lug, each pair engaging lug or so is correspondingly arranged, one pair of which engaging lug and a beam contact, each pair
A rotating shaft is rotatably connected between engaging lug, rectangular sealing plate, every piece is fixed with every rotating shaft along its length
The width of sealing plate is equal to the distance between two adjacent groups hanger, and underframe two sides bottom more long is between two cross bars
It is provided with the lower rubber weather strip that can coordinate with sealing plate face seal；One is fixed with every piece of side in the same direction of sealing plate
Connecting rod, the outer end of drawstring is connected with all connecting rods successively through short riser.
Every adjustable height supporting leg includes horizontally disposed support plate, and support plate is set on the ground by foundation bolt,
A screw rod vertically is fixed with support plate, sleeve pipe and the clamp nut below sleeve pipe, lower frame are threaded with screw rod
Frame bottom is fixed with bearing block, and sleeve upper end is connected by the pressure bearing coordinated in bearing block with underframe rotational support.
Toxic and harmful pretreatment retracting device includes the dust filter unit and analyte filter that are arranged in series；Moisture
It is made up of two separators being arranged in series from device.
Using above-mentioned technical proposal, the utility model is specifically applied to underground substation, there is multiple transformers in pressure change chamber,
Air-vent is offered on the base plate of the lower section of each transformer, each air-vent is corresponded to and is respectively provided with a self-closed pumping
Mouthful device, and mixed gas pump drainage pipeline and air separate return pipeline respectively with self-closed bleeding point device on installation
Hole connects.
After six-component force balance transformer leakage failure in underground substation occurs, sulfur hexafluoride its derivative meeting in space
It is collected with special self-closed bleeding point device, and is stored after exhausting, scroll air compressor, filtering by centrifugal blower
To in preceding buffer tank.Because the volume of preceding buffer tank compares very little for the indoor sulfur hexafluoride gas for leaking out, so, it is preceding
Mixed gas in buffer tank need to process as early as possible, to collect the sulfur hexafluoride gas mixture in the leakage interior space completely.
Do not only have sulfur hexafluoride in the mixed gas collected after the six-component force balance transformer leakage failure of underground substation
Gas and its analyte, also substantial amounts of air, SF6Analyte in gas is filtered out by poisonous and harmful pretreatment unit,
Then the moisture filter in mixed gas is fallen, remaining gas is SF6Mixed gas（General content is 5%-10%）With it is a large amount of
Air（More than 90%）, due to air do not allow it is compressible（The critical pressure of air is 37.69MPa, and critical-temperature is 132.45K；
45.55 DEG C of the critical-temperature of SF6 gases, critical pressure is 3.759MPa）, it is difficult to mixed gas are liquefied, if not removing air
Will cause that the volume of the mixed gas after compression is very big, storage container is a lot, and many troubles are brought to follow-up treatment, this
It is accomplished by separating air by sulfur hexafluoride gas air separation module.
Sulfur hexafluoride gas air separator uses two-stage film separation system, to SF6Gas carries out two-stage separation, can obtain
The SF of higher concentration6Gas.Gas enters one-level film first, and air is separated inside membrane, the SF after then one-level is separated6Gas
The secondary membrane that body enters continues to separate, now, by the concentration about 70% of the sulfur hexafluoride gas after secondary membrane separation（Volume
Than）, the gas is converted into gas-liquid coexistence state in the presence of liquid compressor, and is stored into rear buffer tank.
When the utility model specific works are used, the six-component force balance transformer leakage failure of underground substation occurs
When, online sulfur hexafluoride leakage alarm sends alarm signal, the electric motor starting of self-closed bleeding point device, and motor drives and subtracts
Fast machine, reductor drives reel to rotate, reel take-up, and drawstring pulls all of connecting rod, connecting rod to drive sealing plate to turn upwards
The dynamic gas-permeable channels closure that will be encircled between two block length risers and two pieces of short risers.At the same time, mixed gas pump drainage pipeline
On electric butterfly valve, toxic and harmful pretreatment retracting device, centrifugal blower, whirlpool compressor and water separation device open
Open, in the presence of centrifugal blower, the mixed gas in pressure change chamber are first pumped to toxic and harmful pretreatment retracting device（It is main
To include dust filter unit and analyte filter, filtering accuracy≤0.01 μm, can anti-dust and solid granulates enter whirlpool pressure
Contracting machine, extension device service life）Pre-processed, the mixing gone after chalk dust removing, solid particulate matter and pernicious gas analyte
Again through the effect of whirlpool compressor, mixed gas enter into water separation device the large quantity of moisture separated in mixed gas to gas,
Then the impurity such as catabolite, moisture, the mineral oil in mixed gas are processed using molecular sieve adsorption principle, then mixed gas
Enter into preceding buffer tank memory storage.Preceding buffer tank memory storage opens the first magnetic valve to after certain pressure, and mixed gas are entered into
Separated in air separator, the pure air after separation separates return pipeline and enters back into the presence of air blower by air
To in pressure change chamber, the sulfur hexafluoride gas for also carrying more steam after separation return to whirlpool compressor by circulation filtering pipeline
Inlet end, carry out again steam separate separated with air, concentration reaches 70% sulfur hexafluoride gas and enters into rear buffer tank internal memory
Storage, the concentration of the sulfur hexafluoride gas that can be tested by the gas in buffer tank after the collection of the second quick connector.After cache
After tank storage is fast full, the 3rd magnetic valve and the 6th magnetic valve are opened, open the first compressor and the/the second compressor（Work as needs
When increasing organic efficiency, the first compressor and the second compressor can simultaneously be opened）, sulfur hexafluoride gas mixture enter six storage
Deposit tank memory storage.Untill online sulfur hexafluoride leakage alarm stop alarm, the utility model stops.It is portable lithium
Sulfur hexafluoride gas mixture in six holding vessels is extracted out and further carries out purified treatment by sulfur recovery purifier.
The sulfur hexafluoride gas mixture being stored into six holding vessels if desired enters one due to the air for also having certain content
Step separates air, can open the 7th electromagnetism on the 8th magnetic valve and at the same time or separately unlatching six roots of sensation double purification branch pipe
Valve, the sulfur hexafluoride gas mixture in holding vessel is re-introduced into air separator, air detached job is carried out again, finally
It is stored into again in six holding vessels, so can further improves the concentration of sulfur hexafluoride gas, reduces air content.Thus
Equivalent to the pretreatment that the profound purification operation of sulfur hexafluoride gas had been carried out before portable sulfur hexafluoride reclaiming clean device,
Mitigate the intensity of portable sulfur hexafluoride reclaiming clean device final purification treatment.
By rotating casing, sleeve pipe can be moved self-closed bleeding point device in the utility model axially along a screw, this
Sample can just adjust the height of supporting leg, and pressure bearing plays a part of more effortlessly rotating casing, and in rotating casing
The effect for avoiding underframe from moving.Contacted with the lower surface on the floor of pressure change chamber in upper rubber weather strip and with certain pressure
When, turning clamp nut clamp sleeve lower end locks sleeve pipe.
When transformer normally runs, sealing plate is in open mode, when a failure occurs, underground substation sulfur hexafluoride
When insulating transformer leakage failure occurs, the gas-permeable channels envelope that sealing plate will be encircled between two block length risers and two pieces of short risers
Stifled, it is tight that sealing plate crimps sealing with the lower rubber weather strip of underframe bottom.After the gas of leakage is exhausted, motor reversal,
Drawstring is unclamped, and in the presence of sealing plate self gravitation, sealing plate is rotated down, and is automatically opened up, to radiating of being ventilated in pressure change chamber.
In sum, the utility model realizes SF in space6The filtering of gas and its derivative, reclaim and will reclaim
SF6The large quantity of air simple separation mixed in gas, and the function that the gas after separation is stored；When there is leakage accident,
The present apparatus can rapidly start the gas recovery storage that recovery system would leak into space, meet the method that emergency plan for accidents occurs
Laws ＆ Regulations requirement；The utility model reclaims the air and SF carried out before storage6Separate, then can reduce storage container（Compare regardless of
From air, its storage container is approximately do not separate air storage volumes 30%）, without（Outlet pressure）Very big compressor.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the dimensional structure diagram of self-closed bleeding point device in Fig. 1.
Specific embodiment
As depicted in figs. 1 and 2, the utility model is sulfur hexafluoride gas Emergency recovery after underground substation transformer leakage
Cleaning system, including online sulfur hexafluoride leakage alarm 1, self-closed bleeding point device 2, mixed gas pump drainage pipeline 3, sky
Qi leel is online lithium from return pipeline 4, gas recovery double purification pipeline 5 and portable sulfur hexafluoride reclaiming clean device 6
Sulphur leakage alarm 1 is arranged in pressure change chamber 7, and rectangular air-vent 8 is offered on the floor of underground substation pressure change chamber 7,
Self-closed bleeding point device 2 is located at the floor lower section of pressure change chamber 7 and is arranged on the outside of air-vent 8, mixed gas pump drainage pipeline 3
Inlet end and air separate return pipeline 4 outlet side connected with air-vent 8 by self-closed bleeding point device 2.
Electric butterfly valve 9, toxic and harmful is disposed with by inlet end to outlet side on mixed gas pump drainage pipeline 3 pre-
Treatment retracting device 10, centrifugal blower 11, whirlpool compressor 12, water separation device 13, preceding buffer tank 14, the first magnetic valve 15,
Air separator 16, the second magnetic valve 17, the first check valve 18, rear buffer tank 19, the 3rd magnetic valve 20, expansion joint 21, first
Pressure regulation needle-valve 22, the first compressor 23, the second check valve 24, the 4th magnetic valve 84 and sulfur hexafluoride gas storage device 25.
Air separator 16 is provided with mixed gas import 26, sulfur hexafluoride gas outlet 27, recyclegas and exports 28 and
Air outlet 29, mixed gas import 26 and the sulfur hexafluoride gas outlet 27 on air separator 16 is connected to mixed gas
On pump drainage pipeline 3, the inlet end that air separates return pipeline 4 is connected with the air outlet 29 of air separator 16, air point
The 3rd check valve 30, the 5th magnetic valve 31 and air blower 32 are disposed with by inlet end to outlet side from return pipeline 4.
Sulfur hexafluoride gas storage device 25 includes being sequentially connected in series six holding vessels on mixed gas pump drainage pipeline 3
33, it is equipped with the 6th magnetic valve 34, each holding vessel on the mixed gas pump drainage pipeline 3 between two neighboring holding vessel 33
At least one spare interface 35 is equipped with 33, each top of holding vessel 33 is equipped with a first pressure table 36 and one first
Safety valve 37, the He of the first detection pipe 38 is connected with the holding vessel 33 that the outlet side of mixed gas pump drainage pipeline 3 is connected
Recovery tube 39, the first detection pipe 38 is provided with the second pressure regulation needle-valve 40, and the end of the first detection pipe 38 is provided with the first quick connector
41, recovery tube 39 is provided with the 3rd pressure regulation needle-valve 42, the outlet side of recovery tube 39 and portable sulfur hexafluoride reclaiming clean device 6
Inlet end connection.
The top of six holding vessels 33 is respectively connected with a double purification branch pipe 43, is all provided with every double purification branch pipe 43
There is the 7th magnetic valve 44, the outlet side of six roots of sensation double purification branch pipe 43 is responsible for 45 and is connected, reclaims by a double purification
The inlet end of gas double purification pipeline 5 is connected with double purification supervisor 45, and the outlet side of gas recovery double purification pipeline 5 connects
It is connected on the mixed gas pump drainage pipeline 3 between the magnetic valve 15 of preceding buffer tank 14 and first, on gas recovery double purification pipeline 5
It is provided with the 8th magnetic valve 46.
The utility model also includes circulation filtering pipeline 47, on the inlet end and air separator 16 of circulation filtering pipeline 47
Recyclegas outlet 28 connect, the outlet side of circulation filtering pipeline 47 is connected between centrifugal blower 11 and whirlpool compressor 12
Mixed gas pump drainage pipeline 3 on, circulation filtering pipeline 47 is provided with the 4th check valve 48.
The top of buffer tank 19 is provided with a second pressure table 49 and second safety valve 50 afterwards, is connected on rear buffer tank 19
There is the second detection pipe 51, the second detection pipe 51 is provided with the 4th pressure regulation needle-valve 52, it is fast that the end of the second detection pipe 51 is provided with second
Connection-peg 53.
Second compressor 54 in parallel with the first compressor 23 is connected with mixed gas pump drainage pipeline 3.
Self-closed bleeding point device 2 includes four adjustable height supporting legs, and four adjustable height supporting leg upper ends are fixed
A rectangular underframe 55 is provided with, some root posts 56 are vertically provided with underframe 55, the upper end of all of column 56 is equal
It is fixedly connected with the upper frame 57 that a width is less than underframe 55 equal to underframe 55 and length, upper frame 57 and underframe 55
Between be provided with hound 58 between adjacent upright posts 56, upper frame 57 is corresponding with the outside surrounding of underframe 55 to be fixed with two
Block length riser 59 and two pieces of short risers 60, the length of the length more than air-vent 8 of riser long 59, the length of short riser 60 is more than saturating
The width of stomata 8, two block length risers 59 and two pieces of upper edges of short riser 60 keep flushing and being provided with rubber seal on a circle
The lower surface on the floor of bar 61, upper rubber weather strip 61 and pressure change chamber 7 is tightly connected and around air-vent 8.
The outside of one piece of short riser 60 is provided with mounting bracket 62 on underframe 55, in another piece of short riser on underframe 55
The installation that inlet end and air for connecting mixed gas pump drainage pipeline 3 separate the outlet side of return pipeline 4 is offered on 60
Hole 63, the top of mounting bracket 62 rotates and is provided with fixed pulley 64, and the outer lower portion of mounting bracket 62 is fixed with motor 65 and reductor 66, electricity
The clutch end of machine 65 is connected with the power intake of reductor 66, the clutch end of reductor 66 is coaxial be provided with around
Line wheel 67, is wound with drawstring 68 on reel 67；The cross bar 69 being fixedly connected with the lower edge of short riser 60 is provided with underframe 55,
The two sides bottom more long of underframe 55 is uniformly provided with some to engaging lug 70, each pair connection along the distance between two cross bars 69
Ear 70 or so is correspondingly arranged, and one pair of which engaging lug 70 is contacted with a cross bar 69, is rotatably connected between each pair engaging lug 70
A piece rotating shaft 71, is fixed with rectangular sealing plate 72, every piece of width of sealing plate 72 along its length in every rotating shaft 71
The distance between two adjacent groups hanger is equal to, the two sides bottom more long of underframe 55 is provided between two cross bars 69 can
The lower rubber weather strip coordinated with the face seal of sealing plate 72；A connecting rod is fixed with every piece of side in the same direction of sealing plate 72
73, the outer end of drawstring 68 is connected with all connecting rods 73 successively through short riser 60.
Every adjustable height supporting leg includes horizontally disposed support plate 74, and support plate 74 is arranged on ground by foundation bolt 75
On face, a screw rod 76 vertically is fixed with support plate 74, sleeve pipe 77 is threaded with screw rod 76 and positioned at the lower section of sleeve pipe 77
Clamp nut 78, the bottom of underframe 55 is fixed with bearing block 79, and the upper end of sleeve pipe 77 is by the pressure that coordinates in bearing block 79
Bearing is connected with the rotational support of underframe 55.
Toxic and harmful pretreatment retracting device 10 includes the dust filter unit 80 and analyte filter that are arranged in series
81；Water separation device 13 is made up of two separators 82 being arranged in series.
The utility model is specifically applied to have multiple transformers in underground substation, pressure change chamber 7, in each transformer 83
Air-vent 8 is offered on the base plate of lower section, each air-vent 8 is corresponded to and is respectively provided with a self-closed bleeding point device 2, and
Mixed gas pump drainage pipeline 3 and air separate return pipeline 4 and connect with the mounting hole 63 on self-closed bleeding point device 2 respectively
Connect.
After the leakage failure of underground substation six-component force balance transformer 83 occurs, sulfur hexafluoride its derivative in space
Can be collected with special self-closed bleeding point device 2, and by the exhausting of centrifugal blower 11, scroll air compressor, filtering
After be stored into preceding buffer tank 14.Because the volume of preceding buffer tank 14 is compared for the indoor sulfur hexafluoride gas for leaking out very
It is small, so, the mixed gas in preceding buffer tank 14 need to process as early as possible, to collect the sulfur hexafluoride in the leakage interior space completely
Mixed gas.
It is only not lithium in the mixed gas collected after the leakage failure of underground substation six-component force balance transformer 83
Sulphur gas and its analyte, also substantial amounts of air, SF6Analyte in gas is filtered by poisonous and harmful pretreatment unit
Fall, then fall the moisture filter in mixed gas, remaining gas is SF6Mixed gas（General content is 5%-10%）With it is big
Amount air（More than 90%）, due to air do not allow it is compressible（The critical pressure of air is 37.69MPa, and critical-temperature is
132.45K；45.55 DEG C of the critical-temperature of SF6 gases, critical pressure is 3.759MPa）, it is difficult to mixed gas are liquefied, if not
Removing air will cause that the volume of the mixed gas after compression is very big, and storage container is a lot, is brought very to follow-up treatment
Bother, this is accomplished by separating air by sulfur hexafluoride gas air separation module more.
Sulfur hexafluoride gas air separator 16 uses two-stage film separation system, to SF6Gas carries out two-stage separation, can obtain
To the SF of higher concentration6Gas.Gas enters one-level film first, and air is separated inside membrane, the SF after then one-level is separated6
The secondary membrane that gas enters continues to separate, now, by the concentration about 70% of the sulfur hexafluoride gas after secondary membrane separation（Volume
Than）, the gas is converted into gas-liquid coexistence state in the presence of liquid compressor, and is stored into rear buffer tank 19.
When the utility model specific works are used, the leakage failure of six-component force balance transformer 83 of underground substation occurs
When, online sulfur hexafluoride leakage alarm 1 sends alarm signal, and the motor 65 of self-closed bleeding point device 2 starts, motor 65
Reductor 66, reductor 66 is driven to drive reel 67 to rotate, the take-up of reel 67, drawstring 68 pulls all of connecting rod 73, even
Bar 73 drives sealing plate 72 to be rotated up the gas-permeable channels closure that will be encircled between two block length risers 59 and two pieces of short risers 60.
At the same time, electric butterfly valve 9, the toxic and harmful pretreatment retracting device 10, centrifugal blower on mixed gas pump drainage pipeline 3
11st, whirlpool compressor 12 and water separation device 13 are opened, in the presence of centrifugal blower 11, the mixed gas in pressure change chamber 7
First it is pumped to toxic and harmful pretreatment retracting device 10（Mainly include dust filter unit 80 and analyte filter 81, mistake
Filter precision≤0.01 μm, can anti-dust and solid granulates enter whirlpool compressor 12, extension device service life）Carry out pre- place
Reason, the mixed gas gone after chalk dust removing, solid particulate matter and pernicious gas analyte are again through the effect of whirlpool compressor 12, mixing
Gas enters into water separation device 13 large quantity of moisture separated in mixed gas, then mixed using the treatment of molecular sieve adsorption principle
The impurity such as catabolite, moisture, mineral oil in gas is closed, then mixed gas enter into the memory storage of preceding buffer tank 14.It is preceding slow
The memory storage of tank 14 is deposited to the first magnetic valve 15 after certain pressure, is opened, mixed gas are entered into is divided in air separator 16
From, the pure air after separation separates return pipeline 4 and enters back into pressure change chamber 7 in the presence of air blower 32 by air, point
The sulfur hexafluoride gas for also carrying more steam after are returned to the inlet end of whirlpool compressor 12 by circulation filtering pipeline 47,
Carry out steam again and separate to be separated with air, concentration reaches 70% sulfur hexafluoride gas and enters into the memory storage of rear buffer tank 19, can be with
Gas after the second quick connector 53 is gathered in buffer tank 19 is tested the concentration of sulfur hexafluoride gas.Buffer tank 19 afterwards
After storage is fast full, the 3rd magnetic valve 20 and the 6th magnetic valve 34 are opened, open the first compressor 23 and the/the second compressor 54
（When needing to increase organic efficiency, the first compressor 23 and the second compressor 54 can simultaneously be opened）, sulfur hexafluoride gaseous mixture
Body enters six memory storages of holding vessel 33.Untill the online stop alarm of sulfur hexafluoride leakage alarm 1, the utility model stops
Only.Portable sulfur hexafluoride reclaiming clean device 6 is extracted the sulfur hexafluoride gas mixture in six holding vessels 33 out and further
Carry out purified treatment.
The sulfur hexafluoride gas mixture being stored into six holding vessels 33 is if desired entered due to the air for also having certain content
One step separates air, can open the 8th magnetic valve 46 and open at the same time or separately on six roots of sensation double purification branch pipe 43 the
Seven magnetic valves 44, the sulfur hexafluoride gas mixture in holding vessel 33 is re-introduced into air separator 16, and air is carried out again
Detached job, is finally stored into six holding vessels 33 again, so can further improve the concentration of sulfur hexafluoride gas, reduces
Air content.
, by rotating casing 77, sleeve pipe 77 can be along screw rod 76 axially for self-closed bleeding point device 2 in the utility model
It is mobile, the height of supporting leg can be thus adjusted, pressure bearing plays a part of more effortlessly rotating casing 77, and is turning
The effect for avoiding underframe 55 to move during dynamic sleeve pipe 77.Contacted with the lower surface on the floor of pressure change chamber 7 in upper rubber weather strip 61
And during with certain pressure, turning the lower end of 78 clamp sleeve of clamp nut 77 locks sleeve pipe 77.
When transformer 83 normally runs, sealing plate 72 is in open mode, when a failure occurs, underground substation hexafluoro
When changing the 83 leakage failure generation of sulphur insulating transformer, sealing plate 72 will be encircled between two block length risers 59 and two pieces of short risers 60
Gas-permeable channels closure, sealing plate 72 crimped with the lower rubber weather strip of the bottom of underframe 55 seal it is tight.The gas quilt of leakage
After exhausting, motor 65 is inverted, and drawstring 68 unclamps, and in the presence of the self gravitation of sealing plate 72, sealing plate 72 is rotated down, automatically
Open, to ventilation radiating in pressure change chamber 7.
Online sulfur hexafluoride leakage alarm 1 in the utility model, portable sulfur hexafluoride reclaiming clean device 6, have
Malicious pernicious gas pretreatment retracting device 10, centrifugal blower 11, whirlpool compressor 12, water separation device 13, air separator 16,
Sulfur hexafluoride gas storage device 25, the first compressor and the second compressor are existing mature technology, and specific configuration is no longer gone to live in the household of one's in-laws on getting married
State.
The present embodiment not makees any formal limitation, every foundation to shape of the present utility model, material, structure etc.
Any simple modification, equivalent variations and modification that technical spirit of the present utility model is made to above example, belong to this reality
With the protection domain of new technique scheme.
Claims (7)
1. sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer is leaked, it is characterised in that：Including online
Sulfur hexafluoride leakage alarm, self-closed bleeding point device, mixed gas pump drainage pipeline, air separate return pipeline, reclaim
Gas double purification pipeline and portable sulfur hexafluoride reclaiming clean device, online sulfur hexafluoride leakage alarm are arranged on transformation
Interior, offers rectangular air-vent on the floor of pressure change chamber, self-closed bleeding point device is located under the floor of pressure change chamber
Side is simultaneously arranged on air-vent outside, and the outlet side of inlet end and air the separation return pipeline of mixed gas pump drainage pipeline passes through
Self-closed bleeding point device is connected with air-vent；
Electric butterfly valve, toxic and harmful are disposed with mixed gas pump drainage pipeline by inlet end to outlet side to pre-process back
Receiving apparatus, centrifugal blower, whirlpool compressor, water separation device, preceding buffer tank, the first magnetic valve, air separator, the second electromagnetism
Valve, the first check valve, rear buffer tank, the 3rd magnetic valve, expansion joint, the first pressure regulation needle-valve, the first compressor, the second check valve,
4th magnetic valve and sulfur hexafluoride gas storage device；
Air separator is provided with mixed gas import, sulfur hexafluoride gas outlet, recyclegas outlet and air outlet, empty
Mixed gas import and sulfur hexafluoride gas outlet on gas separating device is connected on mixed gas pump drainage pipeline, and air is separated and returned
The inlet end on return pipe road is connected with the air outlet of air separator, air separate return pipeline by inlet end to outlet side according to
It is secondary to be provided with the 3rd check valve, the 5th magnetic valve and air blower；
Sulfur hexafluoride gas storage device includes being sequentially connected in series six holding vessels on mixed gas pump drainage pipeline, two neighboring
The 6th magnetic valve is equipped with mixed gas pump drainage pipeline between holding vessel, at least one is equipped with each holding vessel
Spare interface, each holding vessel top is equipped with a first pressure table and first safety valve, mixed gas pump drainage pipeline
A holding vessel being connected of outlet side on be connected with the first detection pipe and recovery tube, the first detection pipe is provided with the second pressure regulation
Needle-valve, the end of the first detection pipe is provided with the first quick connector, and recovery tube is provided with the 3rd pressure regulation needle-valve, the outlet side of recovery tube
Inlet end with portable sulfur hexafluoride reclaiming clean device is connected；
A double purification branch pipe is respectively connected with the top of six holding vessels, one the 7th is equipped with every double purification branch pipe
Series connection, gas recovery double purification pipeline are responsible in magnetic valve, the outlet side of six roots of sensation double purification branch pipe by a double purification
Inlet end and double purification supervisor be connected, the outlet side of gas recovery double purification pipeline is connected to preceding buffer tank and first electric
On mixed gas pump drainage pipeline between magnet valve, the 8th magnetic valve is provided with gas recovery double purification pipeline.
2. sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer according to claim 1 is leaked,
It is characterized in that：Also include circulation filtering pipeline, inlet end and the recyclegas on air separator of circulation filtering pipeline go out
Mouth connection, the outlet side of circulation filtering pipeline is connected to the mixed gas pump drainage pipeline between centrifugal blower and whirlpool compressor
On, circulation filtering pipeline is provided with the 4th check valve.
3. sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer according to claim 1 is leaked,
It is characterized in that：Buffer tank top is provided with a second pressure table and second safety valve afterwards, and the is connected with rear buffer tank
Two detection pipes, the second detection pipe is provided with the 4th pressure regulation needle-valve, and the end of the second detection pipe is provided with the second quick connector.
4. sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer according to claim 1 is leaked,
It is characterized in that：The second compressor with the first compressor parallel is connected with mixed gas pump drainage pipeline.
5. sulfur hexafluoride gas Emergency recovery is net after the underground substation transformer leakage according to claim any one of 1-4
Change system, it is characterised in that：Self-closed bleeding point device includes four adjustable height supporting legs, four adjustable height supporting legs
Upper end is fixedly installed a rectangular underframe, and some root posts are vertically provided with underframe, and all of column upper end is equal
The upper frame that a width is less than underframe equal to underframe and length is fixedly connected with, position is provided between upper frame and underframe
Corresponding to be fixed with two block length risers and two pieces short vertical for surrounding on the outside of hound between adjacent upright posts, upper frame and underframe
Plate, the length of riser long more than air-vent length, the width of the length more than air-vent of short riser, two block length risers and two pieces
The upper edge of short riser keeps flushing and being provided with rubber weather strip on a circle, under the floor of upper rubber weather strip and pressure change chamber
Face seal is connected and around air-vent；
Be provided with mounting bracket on the outside of one piece of short riser on underframe, offered on another piece of short riser on underframe for
The mounting hole of the outlet side of inlet end and air the separation return pipeline of mixed gas pump drainage pipeline is connected, mounting bracket top rotates
Fixed pulley is provided with, mounting bracket outer lower portion is fixed with motor and speed reducer, the clutch end of motor and the power of reductor
Input is connected, and the clutch end of reductor is coaxial to be provided with reel, and drawstring is wound with reel；Set in underframe
There is the cross bar being fixedly connected with short riser lower edge, underframe two sides bottom more long is uniform along the distance between two cross bars
It is provided with some to engaging lug, each pair engaging lug or so is correspondingly arranged, one pair of which engaging lug and a beam contact, each pair connection
A rotating shaft is rotatably connected between ear, rectangular sealing plate, every piece of sealing is fixed with every rotating shaft along its length
The width of plate is equal to the distance between two adjacent groups hanger, and underframe two sides bottom more long is set between two cross bars
There is the lower rubber weather strip that can coordinate with sealing plate face seal；A company is fixed with every piece of side in the same direction of sealing plate
Bar, the outer end of drawstring is connected with all connecting rods successively through short riser.
6. sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer according to claim 5 is leaked,
It is characterized in that：Every adjustable height supporting leg includes horizontally disposed support plate, and support plate is arranged on ground by foundation bolt
On, a screw rod vertically is fixed with support plate, sleeve pipe and the clamp nut below sleeve pipe are threaded with screw rod, under
Base of frame is fixed with bearing block, and sleeve upper end is connected by the pressure bearing coordinated in bearing block with underframe rotational support
Connect.
7. sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer according to claim 1 is leaked,
It is characterized in that：Toxic and harmful pretreatment retracting device includes the dust filter unit and analyte filter that are arranged in series；
Water separation device is made up of two separators being arranged in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621410398.7U CN206282679U (en) | 2016-12-21 | 2016-12-21 | Sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621410398.7U CN206282679U (en) | 2016-12-21 | 2016-12-21 | Sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer leakage |
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| Publication Number | Publication Date |
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| CN206282679U true CN206282679U (en) | 2017-06-27 |
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ID=59073114
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| CN201621410398.7U Active CN206282679U (en) | 2016-12-21 | 2016-12-21 | Sulfur hexafluoride gas Emergency recovery cleaning system after underground substation transformer leakage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710787A (en) * | 2016-12-21 | 2017-05-24 | 河南省日立信股份有限公司 | Emergency recovery and purification system of sulfur hexafluoride gas after leakage of transformer in underground substation |
| CN108760666A (en) * | 2018-03-01 | 2018-11-06 | 国网湖北省电力公司咸宁供电公司 | A kind of interior SF6Gas leakage monitoring and Recovery Purifying processing system |
-
2016
- 2016-12-21 CN CN201621410398.7U patent/CN206282679U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710787A (en) * | 2016-12-21 | 2017-05-24 | 河南省日立信股份有限公司 | Emergency recovery and purification system of sulfur hexafluoride gas after leakage of transformer in underground substation |
| CN108760666A (en) * | 2018-03-01 | 2018-11-06 | 国网湖北省电力公司咸宁供电公司 | A kind of interior SF6Gas leakage monitoring and Recovery Purifying processing system |
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