Inner static electricity eliminating control valve for organic solvent delivery pipelines

An inner static electricity eliminating control valve for installation onto or connection to an organic solvent delivery pipeline and for eliminating inner static electricity generated by an organic solvent inside the organic solvent delivery pipeline, the inner static electricity eliminating control valve comprising:

• a valve casing having a pipeline connection portion adapted to be installed on and connected to the organic solvent delivery pipeline;
• a main valve chamber positioned within said valve casing, wherein one side of said main valve chamber communicates with the pipeline connection portion such that the organic solvent can pass through the pipeline connection portion and introduced into the main valve chamber;
• a pneumatic actuator positioned on another side of said main valve chamber, said pneumatic actuator having a pressure applying portion towards the main valve chamber, said pressure applying portion adapted to periodically generate pressure towards the organic solvent inside said main valve chamber;
• a subsidiary valve chamber positioned inside said valve casing and separated from said main valve chamber by a separating wall;
• a check valve located between said main valve chamber and said subsidiary valve chamber, wherein a checking direction of said check valve is set to allow a only one-way flow of the organic solvent from said main valve chamber towards said subsidiary valve chamber;
• a static electricity export mechanism positioned on one side of said subsidiary valve chamber, said static electricity export mechanism having a static electricity export head located inside said subsidiary valve chamber and a static electricity conduction wire connected to said metal static electricity export head and extending out of said valve casing, wherein an outwardly extending end of said static electricity conduction wire has a grounding portion;
• and
• a solvent export portion positioned on one side of said subsidiary valve chamber and spaced from said static electricity export mechanism, said solvent export portion adapted to release and export excessive organic solvent inside said subsidiary valve chamber.