Product Introduction
As an insulating gas, SF6 is non‑toxic, non‑flammable, and offers excellent insulation characteristics. Its insulation strength is significantly higher than that of traditional insulating gases, and it also possesses superior arc‑quenching properties. As a result, SF6 is widely used in SF6 electrical equipment.
However, SF6 gas is expensive, and under the action of arcs, sparks, and corona discharges, it can decompose and produce toxic by‑products. Therefore, SF6 gas recovery is necessary during the application of SF6 electrical equipment. This device is specially designed for recovering and recharging SF6 gas during the manufacturing and maintenance of SF6 electrical equipment.
The device is suitable for vacuuming, gas filling, recharging, purification, and recovery of SF6 gas in SF6 electrical equipment.
The device consists of an SF6 gas recovery unit. Its main advantages include the ability to directly store recovered SF6 gas in liquid form in a container, recover residual pressure in GIS to 53 kPa (absolute pressure), compact size for easy mobility and placement, fast vacuuming speed, and the ability to dry and filter the recovered SF6 gas. It can also recharge SF6 gas back into SF6 electrical equipment.
Technical Parameter
| Recovery | Initial recovery pressure ≤0.8MPa |
| Final recovery pressure ≤50KPa | |
| Recovery time: For 1 m3 SF6 gas volume with initial pressure of 0.8MPa, recovery to the final pressure of 50KPa, the recovery time is less than 2.5 hours | |
| Aeration | 1 m3 SF6 gas volume with initial pressure of 133Pa is charged to 0.8mpa, and the charging time is less than 0.8 hours |
| Vacuum extraction | The limit vacuum degree of the device is less than or equal to 10 Pa, and the time required to vacuum the 1 m3 SF6 gas volume with an initial pressure of 0.1MPa to 133Pa is less than 1.0 hours |
| Storage | Storage container volume 0.05m3 |
| Nominal liquid storage capacity 50kg | |
| Maximum storage pressure 3.8MPa | |
| Decontamination | For SF6 gas with water content below 1000PPM (volume ratio), after recovery and purification by the device, the water content is less than 60PPM (weight ratio), and the oil content is less than 10PPM (weight ratio). |
| Annual leakage rate | ≤1% nominal storage |
| Noise | ≤75dB(A) Sound pressure level |
| Operating ambient temperature | -10℃-40 ℃ |
| Power source | AC three-phase five-wire system 50Hz 400V±10% |
| Power | ≤5kW |
| Weight | About 545kg |
| Overall dimensions (L × W × H) | 1450×810×1200mm3 |
Main Component Performance Parameters
| Index name | SF6 Gas Recovery Device |
| Power supply AC | 380(three five-wire, phase sequence automatic conversion) |
| Rated maximum gas storage pressure (20℃) | ≤4MPa |
| Limiting vacuum | ≤10Pa |
| Device vacuum maintenance | At 133Pa pressure for 24H, the vacuum value rose < 400Pa |
| SF6 Compressor | French Meyoule |
| Compressor pumping rate | 7m3/h (customizable) |
| Vacuum pump | 2X-4 |
| Vacuum pump pumping rate | 15m3/h |
| Recovery device ADAPTS to inlet initial pressure (20℃) | 0-1.0 MPa |
| Final pressure of electrical equipment recovery (20℃) | ≤50Kpa |
| Gas oil control after recovery | Domestic oil content < 10μg/g |
| Unit annual air leakage rate | < 1% |
| Continuous trouble-free operation time of the device | ≥1000h |
| Cumulative trouble-free running time | ≥5000h |
| Noise level | Machine ≤75dB(A) |
| Theoretical liquid storage capacity | 50kg |
| Refrigerated liquefaction compressor | Dombe |
| Refrigerated storage tank | 50L |
| Recovered gas moisture | 60PPM/V |
| After recovery of gas oil | 10PPM/V |
| Dry filtration system | Vacuum heating activation regeneration |
| Initial gas pressure | ≤133pa |
| Charging final pressure | 0.8 mpa |
| Inflation rate | ≥5m3/h |
| Gasification mode | Electric heating automatic temperature control |
| Vehicle type | push-type |
| Overall dimension | 1450×810×1200cm3 |
| Machine weight | About 545kg |
| Cooling mode | Air cooling |
| Filtration system | The use of American HASON technology, three-stage filtration - can higher remove the recovered SF6 gas in the water, oil, particulate impurities and dust, to ensure that the recovered SF6 gas reuse |
Concise Parameter Table
| Model number | SF6 Gas Recovery Device |
| Vacuum pump pumping speed | 15m3/h |
| Limiting vacuum | 10Pa |
| Vacuum pump | Domestic bipolar vacuum pump |
| SF6 Recovery compressor | 7m3/h |
| Stress | 2.5 MPa |
| Compressor manufacturer | French Meyoule |
| Filter particle | 0.02 micron |
| Oil content | High Efficiency (PPM) |
| Acid number | 0.1 parts per million |
| Hydrolyzable fluoride | 0.2 parts per million |
| Biotoxicity | no |
| Moisture | ≤60PPM |
| SF6 purity | 99.9% or higher |
| SF6 storage tank | 50L |
| SF6 tank material | Carbon steel |
| Refrigeration system | High quality and efficient compressor |
| Filter | American original |
| Dryer | American original |
| Vacuum gauge | pointer |
| Valve | Unique technology (built-in butterfly seal to ensure that multiple switches do not leak) |
Product Characteristics
1、Built-in phase sequence protector, no matter when can avoid the host due to phase sequence error and reversal of the worry.
2、All electrical systems are branded with high quality.
3、High-quality casters will greatly protect the floor paint and reduce the labor required when pushing.
4、The machine is air-cooled and does not require an external water source.
5、Built-in temperature protection system works even at -20 degrees Celsius.
6、Built-in drying and heating system ensures that the desiccant can be heated and regenerated by the equipment after saturation, so that there is no need to replace the desiccant.
