3results about How to "Control contact time" patented technology

The invention discloses a dry-type transformer for photovoltaic power generation inverter, which belongs to the technical field of dry-type transformers and comprises a dry-type transformer main body, wherein a base is fixedly connected to the bottom of the dry-type transformer main body, and a terminal docking closed module corresponding to a joint terminal is arranged on the outside of the dry-type transformer main body, wherein the terminal docking closed module comprises a back plate, a closed shell, a partition plate and a flip sealing plate. The invention arranges the terminal docking closed module to plan and isolate the area where the joint terminal is located from the outside, so that the joint terminal is in a planned closed space, and the sealing shell completely shields and protects the docking part between the connecting rod and the joint terminal from the outside, and through the operation of the exhaust module, air is allowed to enter from the only air inlet on the closed shell, and moves along a specified route in the closed space after being filtered by a drying box, so that the entry of moisture and the contact time of the joint terminal part are effectively controlled, and the sealing protection effect of the joint terminal part is improved.

The invention discloses a system and a process for continuously preparing 4-methyl-5-chlorobenzenesulfonic acid, the system includes a jet loop reactor, a circulation pump, a feed pump, a heat exchanger, a gas-liquid separator, a spray absorber, a liquid delivery pump and a crude product tank, the lower end discharge port of the jet loop reactor is connected to the circulation pump and the heat exchanger in sequence, the outlet of the heat exchanger is connected to the feed port of the jet loop reactor, and a circulation loop is formed, the upper end discharge port of the jet loop reactor is connected to the gas-liquid separator by a pipeline, the lower end discharge port of the gas-liquid separator is connected to the crude product tank by a pipeline, the side discharge port of the gas-liquid separator is connected to the spray absorber, and the liquid delivery pump is connected to the spray absorber to form a circulating spray loop, and the cylinder of the jet loop reactor is divided into an upper circulation reaction section and a lower fully mixed reaction section by a partition. The present invention realizes the effect of fully mixing gas and liquid and controlling the depth of chlorination by optimizing the structural design of the jet loop reactor, and the product yield is high and the selectivity is good.

The utility model relates to the technical field of chemical waste gas treatment, and discloses a safe treatment device for filtering chemical waste gas. In the application, the treatment tower is used as a main part for treatment, and gas enters the treatment tower from the gas inlet pipe, and is finally discharged outwards through the gas outlet pipe after being treated. A spraying agent for treating the waste gas is sprayed outwards through a flow control pipe, a spraying pipe and a spraying head, and after spraying, a downward treatment reagent is in contact with the upward air to be used for realizing treatment. And then a flow control assembly formed by a bearing vertical plate, a driving rod, an inserting plate, a limiting plate, a limiting hole and a limiting bolt is used for controlling the spraying speed of the reagent, so that the contact time between the reagent and gas can be controlled, full contact is achieved, and the gas treatment amount in the whole process is large and efficient.