3results about How to "Avoid high temperature failure" patented technology

The air inlet channel structure comprises a speed reducer, an air compressor, a combustion chamber and an exhaust nozzle which are sequentially connected, the air compressor comprises an air inlet casing, a cooling air channel is arranged on the air inlet casing, one end of the cooling air channel is communicated with the speed reducer, and the other end of the cooling air channel is communicated with the outside of the air inlet casing. A negative pressure pipe is further arranged on the speed reducer, and the free end of the negative pressure pipe is communicated with the exhaust nozzle; the air inlet casing comprises a front casing body and a rear casing body which are connected with each other, an air inlet flow channel is arranged between the front casing body and the rear casing body, a front pressurizing cover is arranged on the rear casing body, a rear pressurizing cover is arranged on the front pressurizing cover, the front pressurizing cover and the rear pressurizing cover are buckled with each other to form a pressurizing cavity, and an air compression impeller is arranged in the pressurizing cavity in a matched mode. When the air compression impeller rotates, air flow is sucked into the pressurization cavity from the air inlet flow channel and enters the combustion chamber after being pressurized by the air compression impeller. And the structure linkage is high, the assembly precision is high, the heat dissipation and air inlet efficiency is excellent, maintenance is convenient, and work is stable.

This invention provides a cable partial discharge noise signal monitoring device, relating to the field of power equipment condition monitoring technology. It includes: a bottom housing with a set of bolt mounting holes on its side; a top housing mounted on the top of the bottom housing; a set of locking pins mounted on the sides of both the bottom and top housings; a support plate on the side of the top housing; an electric motor mounted on one side of the support plate; and a driven shaft mounted on one side of the top housing. A threaded rod cooperates with a self-locking clamping seat to achieve symmetrical clamping and self-locking of the cable, preventing cable displacement. The greater the tensile force of the cable, the more stable the clamping seat's grip on the cable. An inflatable airbag flexibly conforms to the cable, achieving centering and sealing, preventing dust from entering the cable monitoring area. The airbag also has a sound insulation effect, preventing external vibrations from affecting cable monitoring and avoiding damage to the insulation layer.

The invention discloses a dynamic sealing and axial force self-balancing device and method for hydrogen environment mechanical property detection, and belongs to the technical field of material testing. The device comprises a mechanical loading mechanism, a reaction kettle, an atmosphere supply and control system and an integrated cooling and force balancing unit, the core of the unit is a cooling gas cabin arranged around a loading pull rod and a cooling pressurization system for providing pressure-adjustable cooling gas. When cooling gas flows through the cooling gas cabin, two functions are executed at the same time: one function is that a loading pull rod and a dynamic sealing area are cooled through convective heat exchange; secondly, reverse thrust is generated on the pull rod through gas pressure so as to dynamically balance axial force generated by high-pressure gas in the reaction kettle; the device is further provided with a temperature closed-loop control module, and cooling parameters are adjusted in real time according to temperature feedback of a dynamic sealing area. According to the invention, the coupling problem of dynamic seal cooling and axial force balance in an extreme hydrogen environment is solved, and the test safety, stability and measurement precision are significantly improved.