66results about How to "No leakage issues" patented technology

The invention discloses a preparation method of (4-ferroceneethynyl)aniline modified fullerene. The method comprises the following steps: 1) preparing epoxy modified fullerene: dispersing amino modified fullerene into fatty alcohol, adding epichlorohydrin and potassium hydroxide into the mixture, performing a reflux reaction for 5-8 h under stirring at 70-80 DEG C, performing rotary evaporation toremove a solvent, performing centrifugal washing for 5-7 times by using water, placing the washed material into a vacuum drying oven at 100-110 DEG C, and performing drying to obtain the epoxy modified fullerene; and 2) preparing the (4-ferroceneethynyl)aniline modified fullerene: dispersing the epoxy modified fullerene into a high-boiling-point solvent, adding (4-ferroceneethynyl)aniline into the solvent, performing a reaction for 6-8 h under stirring at 70-80 DEG C, performing rotary evaporation to remove a solvent, and performing centrifugal washing for 6-8 times by using dichloromethane to obtain the (4-ferroceneethynyl)aniline modified fullerene. The (4-ferroceneethynyl)aniline modified fullerene provided by the invention can be applied to preparation of a dye-sensitized solar cell with high efficiency and high stability.

The invention discloses an end cover structure for preventing working gas leakage of a vertically split compressor, comprising an end cover main body, an air inlet hole, a connecting hole and a dry gas sealing hole arranged on the end cover main body, the air inlet The hole communicates with one end of the connecting hole, the other end of the connecting hole communicates with the dry gas sealing hole, and the dry gas sealing hole communicates with the dry gas sealing area. The invention also discloses a processing method of the end cover structure preventing the leakage of the working gas of the vertically split compressor, and a compressor including the end cover structure preventing the leakage of the working gas of the vertically split compressor. The end cover structure for preventing the leakage of the working gas of the vertically split compressor and the processing method thereof provided by the present invention can prevent the working medium in the compressor from leaking from the connecting hole of the end cover structure for preventing the leakage of the working gas of the vertically split compressor , and the end cover structure that prevents the leakage of the working gas of the vertically split compressor has high processing efficiency and low processing cost.

The invention discloses an integrated permanent magnet variable speed reducer which comprises a box (1), an adjuster (6), an input shaft (2) and an output shaft (8). The input shaft (2) is provided with a cylindrical high-speed permanent magnet motor (3) which is in synchronous rotation with the input shaft (2). The output shaft (8) is provided with a cylindrical low-speed permanent magnet motor (7) which is arranged correspondingly to the high-speed permanent magnet motor (3) and in synchronous rotation with the output shaft (8). The high-speed permanent magnet motor (3) is located in the inner cavity of the low-speed permanent magnet motor (7). A cylindrical modulation iron core (4) is arranged in the radial gap between the low-speed permanent magnet motor (7) and the high-speed permanent magnet motor (3). The modulation iron core (4) is extended into the radial gap between the low-speed permanent magnet motor (7) and the high-speed permanent magnet motor (3) or leaves from the radial gap between the low-speed permanent magnet motor (7) and the high-speed permanent magnet motor (3) through the driving of the adjuster (6). According to the invention, the infinitely variable speed function and the speed-reducing and torque-increasing function can be realized, the oil leakage problem does not exist, and advantages of energy conservation and environment protection, compact structure and high transmission efficiency can be realized.