3results about How to "Improve concentration uniformity" patented technology

The present application relates to the technical field of detection device, specifically to a chloroacetic acid specific gravity testing device and testing method, which comprises a rack, the inner wall of the rack is fixedly installed with an inner cylinder arranged vertically, the inside of the inner cylinder is sequentially provided with a sample storage cavity, a liquid distribution cavity, a liquid storage cavity and a waste discharge cavity from top to bottom, the inside of the liquid storage cavity is installed with a liquid feeding module, the circumferential surface of the inner cylinder is fixedly installed with a group of testing mechanisms arranged in a circumferential array, the circumferential surface of the inner cylinder and the position above the testing mechanisms are slidingly connected with a lifting ring, the upper part of the inner cylinder is fixedly installed with a vertical screw rod driving module, and the circumferential surface of the screw rod driving module is drivingly connected with the lifting ring. The present application has the beneficial effect that the single-station monitoring structure of the traditional specific gravity testing device is changed into a multi-station detection structure through the arrangement of multiple testing mechanisms, and multiple testing mechanisms can simultaneously perform specific gravity detection of the same testing liquid in the same detection mode during work.

The application discloses a kind of jet structure and plasma etching machine.The jet structure includes air inlet pipe cover, can be communicated with gas source;Jet member is detachably connected with air inlet pipe cover, and jet member and air inlet pipe cover form accommodating space after being connected;Gas path switching member is movably arranged in accommodating space;Wherein, gas path switching member is provided with gas through hole group, jet member is provided with jet hole group, the number of gas through hole group and jet hole group is multiple group, and each group of jet hole group corresponds a group of gas through hole group, the jet direction of each group of jet hole group is different, based on the movable setting of gas path switching member, the conduction of jet hole group and its corresponding gas through hole group can be switched to the conduction of another jet hole group and another gas through hole group.The jet structure can realize multiple direction jet, with the continuity movement of gas path switching member, the jet structure can also realize the periodic jet of multiple directions, improve plasma concentration uniformity, so that the uniformity of plasma etching is improved.

This utility model discloses a coagulation tank with a flow guiding structure, relating to the field of composite diaphragm production equipment. By setting inlet and outlet at the bottom of the tank, and cooperating with inlet guide plates, outlet guide plates, and diaphragm flow field protection guide plates, the horizontal flow field is transformed into a vertical flow field, reducing the impact on the composite diaphragm and solving the problems of uneven diaphragm thickness and unstable surface resistivity in the prior art. This utility model has a simple structure, can significantly improve the preparation quality of composite diaphragms, and is suitable for the industrial production of composite diaphragms for alkaline electrolytic cells.