Flow Divider Valve,Flow Distribution Valve,Hydraulic Flow Divider Valve,Full Hydraulic Shunt Valve Shuyang County Huji town Desheng hydraulic machinery factory , http://www.dshydraulic.com
The SF6 Vacuum Inflation Device is a compact SF6 gas inflation and extraction device. The entire inflation and vacuum extraction device is mounted on a very sturdy metal frame and can walk freely even on gravel roads. The entire SF6 gas charging and vacuuming device includes: vacuum pump, pointer vacuum gauge, regulating valve, gas pipe, and valve and instrument control components for maintenance of SF6 circuit breaker.
The SF6 vacuum pumping and inflation device adopts hand-push mobile type, which can adapt to the indoor and outdoor normal environmental conditions. The system of this device is relatively complicated, consisting of vacuum pump, SF6 compressor, refrigeration system, storage container, pipeline, various valves, meters and other accessories. The electric control box, operating valves and monitoring instruments are all concentrated on one side panel and there are flow instructions, so it is convenient and clear to use.
The basic working principle of the SF6 evacuation and inflation device is to use the freeze liquefaction method. During recovery, the suction and compressibility of the compressor are used to draw SF6 gas of a certain pressure in the SF6 electrical equipment into the compressor and compress it to a certain higher pressure. At the same time, using the low evaporation temperature characteristic of R22 refrigerant, the higher temperature SF6 gas is cooled to the condensation temperature for liquefaction and storage. In this way, continuous pumping until the SF6 compressor is operated in series until the final pressure of recovery is reached.
When filling and discharging, first use the vacuum pump of this device to evacuate SF6 electrical equipment (or cylinder) and connecting pipelines, and then directly use the pressure difference or the suction of the compressor and cause a certain pressure difference to store the device in the storage container The SF6 inside is charged into the SF6 electrical equipment until the required working pressure is reached. When the bottle needs to be filled, the characteristics of the R22 refrigerant as described above are simultaneously used to directly fill the liquefied SF6 into the steel bottle. The purification function is completed simultaneously when the above-mentioned recycling, charging and discharging functions are completed.
Flow Description:
1. Recovery of SF6 gas
When SF6 is drawn from a gas chamber, the gas will automatically flow through the purification filter and be compressed and cooled by the SF6 compressor. It can be stored in the SF6 storage tank in gaseous form or liquid form under a certain high pressure.
2. SF6 switch vacuum
The air and moisture in the switch can be removed by the vacuum pump, and the outlet of the vacuum pump is open to the atmosphere.
3. Inflatable
The purified and dried SF6 is charged from the storage tank back to the evacuated gas chamber until the pressure in the gas chamber reaches the set working pressure. The above work is carried out in two steps. With the help of the SF6 tank pressure, the gas flows to the SF6 switch until the predetermined inflation pressure is reached.
4. When the pressure of the SF6 tank and the pressure of the SF6 switch are balanced, the compressor is used to pressurize and inflate until the predetermined inflation pressure is reached.
product features:
1. Vacuum display (other vacuum meters can be configured according to user requirements);
2. Equipped with various imported and domestic SF6 electrical equipment connection connectors (optional);
3. According to the time or vacuum degree set by the user, automatic vacuuming (optional);
4. A variety of protection functions to effectively ensure the safe operation of vacuum pumps;
5. Convenient maintenance, the device uses components with excellent performance, and no maintenance is needed for long time use.
October 20, 2024