4results about How to "Simple sealing method" patented technology

This invention discloses a laboratory-grade ceramic membrane pressure filtration device, comprising a pressure ceramic membrane filtration unit, a pressure pump, a feed container, a valve, and a dialysate container. This invention uses an inorganic ceramic membrane as the filter medium, which is resistant to acids and alkalis, resistant to organic solvents, has a wide range of applications, high strength, and high operating pressure. It maintains high membrane integrity during installation, disassembly, and filtration, and offers high operating flux and high recovery rate. It can withstand both high-pressure steam sterilization and chemical sterilization. The sealing method is simpler than that of tubular ceramic membranes, and the dead volume is significantly smaller, requiring relatively less feed solution, making it suitable for laboratory operating environments.

The present invention discloses a ship fuel supply system, including a fuel storage tank T, wherein a centrifugal fuel pump P is arranged in the fuel storage tank T, and the centrifugal fuel pump P inputs the LNG in the fuel storage tank T into a cryogenic vacuum pump pool D through an ultra-low temperature pipeline, and a high-pressure fuel pipeline and a low-pressure fuel pipeline are arranged downstream of the cryogenic pump pool D. The cryogenic pump of the present invention belongs to a hydraulic pump, and the hydraulic pump is installed in the pump pool as a whole, and the medium has no leakage, which effectively reduces the system cooling loss, reduces the vaporization amount, helps to optimize the working conditions when the cryogenic pump is running, and effectively prolongs the pressure storage time of the storage tank.

The utility model discloses a vacuum sealing non-contact power transmission structure, and belongs to the technical field of power transmission of vacuum equipment. Comprising an external power source, an inner adapter shaft arranged in a vacuum cavity of the vacuum equipment, a magnetic outer rotor, a magnetic inner rotor and an isolation hood, the magnetic outer rotor is connected with an external power source, and the magnetic inner rotor is connected with the inner adapter shaft; the magnetic outer rotor is magnetically connected with the magnetic inner rotor, and an isolation cover is arranged between the magnetic outer rotor and the magnetic inner rotor and is hermetically connected with the vacuum cavity; synchronous rotation is achieved through magnetic force, the transmission torque is large, and synchronism is good; the conversion from dynamic sealing to static sealing and the conversion from contact sealing to non-contact sealing are realized, and the problem of compatibility of power transmission and sealing performance is solved.

The invention relates to the technical field of motor cooling, in particular to a nitrogen protection cover of a liquid hydrogen cooling motor system, which comprises a bottom plate and a cover body, a motor is arranged on the bottom plate, the cover body is detachably connected with the bottom plate in a sealing manner, a sealing cavity is formed in the bottom plate and the cover body, and the motor is located in the sealing cavity. A sealing gasket is arranged between the corresponding connecting positions of the cover body and the bottom plate, when the cover body is installed, the cover body and the bottom plate can exert opposite pressure on the sealing gasket, the cover body and the bottom plate press the sealing gasket tightly, and therefore the connecting positions of the cover body and the bottom plate are sealed. Opposite pressure is applied to the sealing gasket through the cover body and the bottom plate, tight sealing between the cover body and the bottom plate is achieved, the sealing mode is simple and effective, the sealing gasket serves as a component providing the sealing effect, and the sealing effect is achieved while dismounting is convenient.