Abstract: A method for extracting and isolating a lutein crystal from a vegetable oil resin containing a lutein diester, comprises: dissolving lipase into deionized water to form an enzyme solution; dissolving a lutein extract into an alcohol solvent containing the deionized water to form a uniform alcohol solution; adding the enzyme solution to the alcohol solution for performing hydrolysis, and stirring same to obtain a lutein solution; filtering and performing filtration isolation on the lutein solution to obtain a crystalline; re-dissolving the crystalline into a non-polar organic solvent, and using deionized water for washing a water-soluble impurity; recycling and cooling the organic solvent to obtain a recrystallization; and isolating and drying the recrystallization to obtain the lutein crystal. In this method, selectivity is strong, reaction time is short, no waste water is produced, process is environment-friendly and suitable for industrial production, and obtained lutein crystal is high in purity and yield.

Abstract: Disclosed is a rail vibration absorber, comprising an elastic element (4), a mass (3) and at least one coupling frame (2). The coupling frame (2) has the same surface shape as a non-working surface coupling portion of a steel rail. The coupling frame (2) comprises at least one vibration absorption cavity (100). The mass (3) is at least partially disposed in the vibration absorption cavity (100) of the coupling frame (2). The elastic element (4) is arranged between the mass (3) and a wall of the vibration absorption cavity (100). The rail vibration absorber has a simple structure, stable performance and good weatherability, and can effectively slow wear to the steel rail and prolong the service life thereof.

Abstract: A liquid projection bomb includes a shell and is characterized in that functional liquid is filled into the shell, and the shell is made of a soft or hard material easy to crack when bumped. The functional liquid includes water, alcohol, fuel oil, and a solution of water mixed with an extinguishing agent, a fertilizer or a drug.

Abstract: Disclosed is a rail vibration absorber, comprising an elastic element (4), a mass (3) and at least one coupling frame (2). The coupling frame (2) has the same surface shape as a non-working surface coupling portion of a steel rail. The coupling frame (2) comprises at least one vibration absorption cavity (100). The mass (3) is at least partially disposed in the vibration absorption cavity (100) of the coupling frame (2). The elastic element (4) is arranged between the mass (3) and a wall of the vibration absorption cavity (100). The rail vibration absorber has a simple structure, stable performance and good weatherability, and can effectively slow wear to the steel rail and prolong the service life thereof.

Abstract: A method of quickly supplying electric energy to electric vehicles and the power supply device thereof are provided. The method includes providing a rechargeable battery pack on an electric vehicle and providing a battery replacement device, a charging room and a battery storeroom in a power exchange station. The rechargeable battery pack includes a battery box and standardized standard battery units. The standard battery units are located in the battery box during operation, and are capable of being smoothly loaded into and unloaded from the battery box along the guiding rails. The rechargeable battery pack is pre-installed in the electric vehicle and the drained standard battery units within the battery box are replaced with fully-charged standard battery units upon payment when the electric vehicle in need of electric power supply is driven into the power exchanging station.

Abstract: A liquid projection bomb includes a shell and is characterized in that functional liquid is filled into the shell, and the shell is made of a soft or hard material easy to crack when bumped. The functional liquid includes water, alcohol, fuel oil, and a solution of water mixed with an extinguishing agent, a fertilizer or a drug.

Abstract: A shock-resistant protective shell for a portable electric appliance includes a protective shell additionally arranged on a surface of a portable electric appliance and matching the shape of the portable electric appliance, with a buffer body protruding towards an exterior of the protective shell arranged at the corner of the protective shell. A primary buffer axis of the buffer body points to the centroid of the portable electric appliance, or the projection of the primary buffer axis in the principal plane of the electric appliance extends along the angular bisector between two adjacent sides. The buffer body is arranged with a secondary buffer axis arranged perpendicular to the primary buffer axis or perpendicular to the principal plane of the portable electric appliance. The thickness of the buffer body is at least 3 times of the average thickness of the rest parts in the protective shell except for the buffer body.

Abstract: An energy storage device that stores hot and/or cold energy includes an evaporating part and a condensing part. According to one aspect, the evaporating part includes a heat tube in a U shape or a thimble shape and further includes one or more power cycle tubes. A working substance within the evaporating part evaporates after absorbing heat and condenses in the condensing part after releasing heat.

Abstract: A method of quickly supplying electric energy to electric vehicles and the power supply device thereof are provided. The method includes providing a rechargeable battery pack on an electric vehicle and providing a battery replacement device, a charging room and a battery storeroom in a power exchange station. The rechargeable battery pack includes a battery box and standardized standard battery units. The standard battery units are located in the battery box during operation, and are capable of being smoothly loaded into and unloaded from the battery box along the guiding rails. The rechargeable battery pack is pre-installed in the electric vehicle; and the drained standard battery units within the battery box are replaced with fully-charged standard battery units upon payment when the electric vehicle in need of electric power supply is driven into the power exchanging station.

Abstract: The present invention relates to a refrigeration system, associated system of heating and refrigeration, geothermal energy utilizing system, cold storing apparatus, heat storing apparatus and the accessories thereof, and in particular relates to an air conditioning system utilizing natural cold energy, geothermal energy, thermal waste, residual heat and environmental friendly energy.