3results about How to "Improve cooling environment" patented technology

The invention belongs to the technical field of aircrafts, and discloses an end machining method for a stiffened wall plate. The stiffened wall plate comprises a skin and stringers arranged on the skin at intervals in the width direction of the skin, each stringer comprises a first stringer part and a second stringer part, and the first stringer parts are connected to the end face of the skin in the height direction of the skin; the end machining method of the stiffened wall plate comprises the following steps that a first grinding wheel sheet cuts a second truss part and at least part of a first truss part in the width direction of the stiffened wall plate at a first feeding distance; the milling cutter is used for milling and removing the remaining first truss part and skin in the width direction of the stiffened wall plate by a second feeding distance; the second feeding distance is smaller than the first feeding distance, so that a remaining step is formed at the end of the skin; the second grinding wheel grinds away the remaining steps, on one hand, the amount of powder scraps is small, the problem of layering separation does not need to be worried about, the end of the stiffened wall plate is machined more conveniently, and the machining efficiency is improved.

The utility model relates to the technical field of distillation gas condensation, in particular to an efficient condensing device for a perfluoropolyether distillation process. Comprising a condensation box body, a gas inlet pipe is installed at one end of the condensation box body, a liquid outlet pipe is installed at the other end of the condensation box body, and a gas return assembly used for recycling uncondensed gas is installed on the liquid outlet pipe; due to the arrangement of the gas return assembly, when distillation steam is not completely condensed in the condensation assembly, uncondensed gas can flow back to the gas inlet pipe from the liquid outlet pipe through the gas return pipe, and recycling of the uncondensed gas is achieved. Raw material loss caused by direct emission of uncondensed gas is avoided, and the production cost is effectively reduced; meanwhile, pollution possibly caused by emission of uncondensed gas to the environment is reduced, and the environmental protection requirement is met.

The utility model relates to the technical field of vacuum pump, concretely is a water -cooling sealed motor roots vacuum pump, including integrated shell, one end of integrated shell is connected with sealed baffle and installs on double wall board another end, makes the contact surface between integrated shell and double wall board form static seal surface, the isobaric sealed chamber is formed in integrated shell inside, integrated core shaft, induction motor rotor and split type induction motor stator set up in isobaric sealed chamber. The utility model discloses through changing the external motor to built -in water -cooling sealed motor, improves the use performance of vacuum pump and prolongs the service life of vacuum pump, the structure is relatively simple, cancels the shaft coupling of traditional structure, and transmission is more stable, and transmission efficiency is higher, the sealing performance of precision seal lifting pump is improved by changing the dynamic seal in traditional structure, and integrated internal water cooling can provide better cooling environment compared with traditional air -cooled motor structure.