Portable SF6 Gas Vacuum Pumping and Recovery Device is a compact SF6 gas filling and evacuation device. The entire filling and vacuum pumping unit is mounted on a very sturdy metal frame, which can move smoothly even on gravel roads. This device features high efficiency in vacuum pumping and gas filling, low energy consumption, automatic phase sequence switching system for power supply, high-precision thermocouple vacuum gauge, simple and practical design. The control system adopts the latest SF6-specific valves, with small overall size, light weight, and low noise.
Product Features:
1. This device can evacuate SF6 electrical equipment and measure the vacuum degree.
2. This device can fill SF6 gas into SF6 electrical equipment.
3. This device can recover gas from SF6 electrical equipment.
4. This device can purify the recovered SF6 gas.
5. This device can store SF6 gas.
6. This device is developed according to the standard DL/T 662-1999 "Technical Conditions for SF6 Gas Recovery Device" of the Ministry of Electric Power, referencing products from world-renowned brands, and adopting the latest national technology. The device consists of recovery system, filling system, vacuum system, purification system, and storage system, with the following main functions:
7. Measure vacuum degree and evacuate the device itself, electrical equipment, and storage tanks.
8. Recover gas from electrical equipment.
9. Dry and purify the recovered and refilled SF6 gas.
10. Fill SF6 gas into electrical equipment.
11. Compress and store SF6 gas in liquid form.
12. Adopting the system principle and technology of German DILO company, with advanced design, complete functions, reasonable structure, and simple and clear operation.
13. The compression system adopts a semi-hermetic compressor with imported compression technology, which has stable performance and greatly extended service life compared to previous models.
14. The vacuum system adopts a two-stage rotary vane vacuum pump with fast vacuum rate, and the system is equipped with an oil return prevention device.
15. The purification system adopts the filter principle of American Neil Company. The filter adopts a two-stage built-in electric heating and built-in high-efficiency adsorbent, making the purification effect more significant (no need for frequent replacement of adsorbent).
16. The electrical system of the device automatically confirms and adjusts the three-phase power supply.
17. The control system uses the latest SF6-specific instruments and valves, which are more reliable than similar products with ball valves.
18. The storage system is configured with a liquid storage tank according to user requirements.
19. The device adopts air-cooled mobile type and can be used without external water source.
Technical Parameters:
Cooling Method The vacuum pump adopts air-cooled type and can run for a long time.
Mobile Type Manual movement (light type)
Working Principle High-pressure ball valve, vacuum gauge assists vacuum pump for evacuation.
Pumping Speed (m3/h) 55
Ultimate Vacuum of Device (Absolute Pressure Pa) 10
Initial Pressure for Evacuation 53kPa
Final Pressure for Evacuation 30 Pa
Refilling Rate 5m/h
Vacuum Measurement Method Pointer type vacuum gauge
Vacuum Gauge Measurement Range 0-10^3 Pa
Annual Leakage Rate ≤1%
Working Environment Temperature Upper limit: +40℃, Lower limit: +5℃, -10℃, -30℃Portable SF6 Gas Vacuum Pumping and Recovery Device
Precautions:
1. Before use, check whether all connection parts are correct and the interfaces are sealed.
2. The oil level of the device components should be appropriate.
3. The vacuum pump must not run in reverse.
4. Do not open vacuum gauge V9 when there is gas pressure in the device.
5. The filter element should be replaced after 5000 hours of operation. The molecular sieve should be replaced after 10000 hours.
6. When recovering gas, the refrigeration system can be turned on 15-30 minutes in advance.
7. When the refrigeration system is turned on, a small amount of condensed water will be discharged, which can be properly handled.
