2results about How to "Increase exchange speed" patented technology

The invention discloses a machining device with a built-in fixture with a masking film and an end face reciprocating motion and an application method thereof. The machining device is composed of a machining cavity, an electromechanical mechanism, a liquid container, a mechanism and a pipeline, wherein the machining cavity is internally provided with the fixture with the masking film and is provided with at least one end face plate capable of reciprocating motion; the electromechanical mechanism drives the push-pull end face plate to reciprocate; and a sensing and control member. The processing cavity is a frame body capable of being opened and closed and is composed of two paired sub frame bodies. One end face of each sub-frame body is an inner end face; the inner end faces of the two sub-frame bodies are the same in shape or matched in a concave-convex mode, are attached together along the common surface and seal liquid when combined. A pattern selective transparent film and a pattern selective shielding film are fixed on the inner end surface of the sub-frame body at high tension; after the film is fixed by the sub-frame bodies, the surface of the film extending out of the frame body and not attached to the inner end surface is used as a clamping surface of the clamp. According to the processing device, the liquid processing efficiency and quality can be improved; the size of processing equipment is reduced, and the quantity demand of liquid is reduced.

This utility model provides a ventilation structure for a box-type substation enclosure cover, relating to the technical field of enclosure cover ventilation structures. It includes: a first plug-in fixing frame, with a filter structure on top of the first plug-in fixing frame, and a cooling structure on top of the filter structure. In this utility model, the filter structure, cooling structure, and top plate structure are sequentially assembled, and then waterproof adhesive is applied to the connection gaps for further fixation. In hot weather, the exhaust fan is activated via remote operation of the external control equipment installed inside the box-type substation. When the exhaust fan is operating, it draws in air from inside the box-type substation and discharges it through multiple vents, increasing the airflow exchange speed and improving ventilation and heat dissipation. After prolonged use, when cleaning and maintaining the exhaust fan inside the enclosure cover ventilation structure, the filter plate is first disassembled, and then the exhaust fan and filter plate are cleaned and maintained.