Abstract: This invention disclosures a liquid storage tank upper cover assembly of a drawing or adding liquid machine and a drawing or adding liquid machine. The liquid storage tank upper cover assembly includes an upper cover, a switching valve foundation disposed at an upper end of the upper cover and a valve cartridge cooperated with the switching valve foundation. The upper cover and the switching valve foundation are a one-piece molded part. The switching valve foundation has a sliding hole, a lower part of the upper cover has a first through-hole and a second through-hole which are spaced apart, and the first through-hole and the second through-hole are both connected to the sliding hole. The switching valve foundation has a third through-hole connected with the sliding hole. The valve cartridge is glidingly provided in the sliding hole.

Abstract: This invention disclosures a liquid storage tank upper cover assembly of a drawing or adding liquid machine and a drawing or adding liquid machine. The liquid storage tank upper cover assembly includes an upper cover, a switching valve foundation disposed at an upper end of the upper cover and a valve cartridge cooperated with the switching valve foundation. The upper cover and the switching valve foundation are a one-piece molded part. The switching valve foundation has a sliding hole, a lower part of the upper cover has a first through-hole and a second through-hole which are spaced apart, and the first through-hole and the second through-hole are both connected to the sliding hole. The switching valve foundation has a third through-hole connected with the sliding hole. The valve cartridge is glidingly provided in the sliding hole.

Abstract: This invention provides a manual fluid extractor which includes a liquid storage barrel, a barrel cover, an inflator, a liquid adding pipe base, a liquid extracting pipe, a liquid adding pipe and a control valve. The barrel cover is connected with the liquid storage barrel in a sealing way, one end of the liquid extracting pipe is connected with the liquid adding pipe base, and the other end is freely located at an interior of the liquid storage barrel. The liquid adding pipe is connected with the liquid adding pipe base, and the liquid adding pipe communicates with the liquid extracting pipe. A control valve is disposed at the liquid adding pipe. This invention reduces complexity of an assembly process, improves product performance and reduces manufacturing costs.

Abstract: This invention provides a manual fluid extractor which includes a liquid storage barrel, a barrel cover, an inflator, a liquid adding pipe base, a liquid extracting pipe, a liquid adding pipe and a control valve. The barrel cover is connected with the liquid storage barrel in a sealing way, one end of the liquid extracting pipe is connected with the liquid adding pipe base, and the other end is freely located at an interior of the liquid storage barrel. The liquid adding pipe is connected with the liquid adding pipe base, and the liquid adding pipe communicates with the liquid extracting pipe. A control valve is disposed at the liquid adding pipe. This invention reduces complexity of an assembly process, improves product performance and reduces manufacturing costs.

Abstract: It's referred to a continuous fluid treatment chamber designed for pulsed electric field or radio frequency electric field. It's a chamber with two metal hollow tubes and isolating ring. Isolating ring is between two metal hollow tubes which are connected with high intensive pulse or radio frequency generator respectively. The main characteristics are as follow: In two metal hollow tubes near the isolating ring there is at least one metal conductor or lead. With this chamber, the capacity can be greatly improved (the material can pass through any large diameter tube, not sew). And the electric field distribution can be more uniform and the treatment of fluid will be highly efficient. It's benefit for pulse electric field or radio frequency electric field to be applied in industry.