4results about How to "Fast ventilation" patented technology

The utility model discloses safe laboratory intelligent ventilation equipment, which relates to the technical field of ventilation equipment and comprises an operation table, a ventilation mechanism, an adsorption box, a first servo electric cylinder, an air guide barrel, an air suction opening, an air guide opening and a first corrugated pipe. The adsorption box in the ventilation mechanism provides an adsorption material in the ventilation mechanism, gas generated in an experiment can be effectively subjected to preliminary adsorption and purification treatment, the pressure of subsequent ventilation and purification treatment can be effectively relieved, the air suction opening in the bottom of the air guide barrel is used for carrying out air suction treatment on the gas generated in the experiment, and the air suction efficiency is improved. An air guide opening in the top of the air guide barrel is used for conveying air in the air guide barrel into the adsorption box, a first servo electric cylinder stretches out and draws back, the distance between an air suction opening and an operation table can be effectively adjusted, air suction treatment can be conducted on the air generated in the experiment process nearby and rapidly, and the experiment efficiency is improved. Rapid air suction and ventilation guide treatment on toxic gas or irritant gas generated in the experiment process can be effectively improved.

The utility model relates to the technical field of low-pressure carburization, and discloses a low-pressure carburization vacuum furnace heating chamber capable of quickly exchanging air, which comprises a vacuum furnace provided with a heating module, a furnace cover hinged to the top and a bracket I arranged at the bottom, an air inlet pressure regulating chamber is arranged below the vacuum furnace, the air inlet pressure regulating chamber is connected with the vacuum furnace through a uniform air distribution module, a plurality of air delivery pipes are arranged at the top of the air inlet pressure regulating chamber, the air inlet pressure regulating chamber is connected with a nitrogen source, a carbon source and an air purification module through the air delivery pipes, and a preheating module is arranged in the air inlet pressure regulating chamber; an exhaust pressure regulating chamber is arranged on one side of the vacuum furnace, a vacuum pump is arranged on the vacuum furnace, an exhaust port of the vacuum pump is connected with the exhaust pressure regulating chamber, and an exhaust pump is arranged on the exhaust pressure regulating chamber. Compared with the prior art, the device has the advantages that the pressure difference of the two sides of the vacuum pump can be regulated and controlled, gas in the vacuum furnace can be conveniently and rapidly exhausted, the gas exchange speed in the vacuum furnace is higher, and the gas exchange efficiency is higher.

The utility model relates to corn air -drying technical field especially relates to a kind of seed production corn fresh ear air -drying net bin.The seed production corn fresh ear air -drying net bin including mounting seat, mounting seat is equipped with air -drying storage chamber, air -drying storage chamber is by grid board splicing, air -drying storage chamber is fixedly installed ventilation chamber, ventilation chamber is formed by ventilation net around;Two bottom plates are fixedly installed in mounting seat, and the junction of two bottom plates is fixedly welded with middle pipe, and the middle pipe is equipped with exhaust hole, and the bottom of mounting seat is equipped with fan.The seed production corn fresh ear air -drying net bin provided by the utility model, external natural wind can be through ventilation net and grid board to penetrate the whole storage space, realize fresh ear surface layer fast ventilation, while, fan is actively sent to the bottom of storage space by middle pipe, airflow is from bottom to top through fresh ear accumulation layer, so that both form passive ventilation and active ventilation double ventilation design, solve the problem of internal ventilation in traditional accumulation storage.

The application discloses an assembled grain flat warehouse, which comprises support columns, the number of the support columns is four, left and right two support columns are connected with first side plates through bolts, the top and bottom of front and back two support columns are respectively connected with driving mechanisms and second side plates through bolts, the inner cavity of the driving mechanism is slidably connected with a mounting sliding plate, and the inner cavity of the mounting sliding plate is connected with a ventilation fan through bolts. Through the cooperation of the top cover, the photovoltaic power generation plate, the driving mechanism, the electronic display panel, the battery pack, the ventilation fan, the mounting sliding plate and the monitoring mechanism, the application has the advantages of environment monitoring and rapid ventilation, can realize real-time monitoring on the environment temperature and humidity in the flat warehouse, is favorable for personnel to understand and manage the flat warehouse, can rapidly ventilate and radiate heat inside the flat warehouse, and is more energy-saving and environment-friendly through solar power generation.