48results about How to "Reduce heat radiation loss" patented technology

The invention discloses a film coating device and method for the inner wall of a crystal silicon reduction furnace. The device includes: a base with at least two gas replacement holes; a hollow target which is the same shape as the bell jar and smaller than the bell jar; the material of the target material and the coating target The material is the same, set inside the bell jar; both the bell jar and the target are located on the base; the bell jar has a jacket, and the jacket can be injected with a flow medium with heat; the heating device is set inside the target, used to heat the target Heating; a gas exchange device for gas replacement of the space between the bell and the target; when the target is placed inside the bell, the gas replacement hole is located in the space between the target and the bell; a power supply device with The positive pole connected to the bell jar, and the negative pole connected to the target. The invention can prepare an ultra-thin metal film with uniform structure and strong bonding force on the inner wall of the polysilicon reduction furnace, and can simultaneously coat various positions on the inner wall of the bell jar, thereby avoiding stress concentration or residual problems caused by segmented coating.

The invention discloses a spherical cavity type solar heat absorber with an inwardly concave glass cover. The heat absorber is mainly used for collecting sunlight and converting the sunlight into heat energy in a butterfly type solar high-temperature heat utilization system. The heat absorber mainly comprises a heat exchange coil pipe, the inwardly concave glass cover, an outer shell, an inner shell, a vacuum layer, a reflective wind shield and a heat conductive fluid. Different from the traditional opening type heat absorber and the cavity type heat absorber with the glass window at the cavity opening, the cavity type heat absorber disclosed by the invention is the opening type spherical heat absorber with the inwardly concave glass cover, therefore, the cavity type heat absorber not only has the light capturing capacity of the opening cavity type heat absorber but also has low heat loss of the cavity type heat absorber with the glass window at the cavity opening; meanwhile, the cavity type heat absorber is provided with the reflective wind shield, therefore, the capturing on deviated light can be strengthened, and the heat radiation on the inner wall and the convection heat transfer loss resulted from external natural wind can be reduced; and the cavity type heat absorber comprises the vacuum layer between the inner shell and the outer shell, therefore, the lost heat through the shells can be effectively reduced.

The invention relates to a personal energy managing device containing a fluoroalkyl silane hydrophobic surface layer and a production method and application of the personal energy managing device. The device is characterized in that silver nano wires AgNWs and polydimethyl siloxane (PDMS) sequentially wrap the surface of nylon cloth, and fluoroalkyl silane is grafted to the surface of the PDMS to form the device. The production method includes: soaking the nylon cloth wrapped by the silver nanowires (AN cloth) into the PDMS, and taking out and curing to obtain the AN cloth wrapped with the PDMS (PDMS / AN cloth); performing plasma treatment on the PDMS / AN cloth, soaking into an FAS solution, and drying to obtain the personal energy managing device. The personal energy managing device and the production method thereof have the advantages that the device is applicable to a friction nano power generator to convert mechanical energy into electric energy so as to power a small device and can be used as wearable heat managing equipment to keep a human body warm and provide a heating function; a simple dip-coating method is used to allow the fluoroalkyl silane to be grafted to the surface of the PMDS, and the output performance of the friction nano power generator is increased greatly.

The invention discloses a solar water purifier based on interface solar photothermal conversion, which comprises a solar interface evaporator and a distilled water collector. body; the light absorbing body is a double-layer structure, which is composed of an upper layer of light-to-heat conversion material and a lower layer of heat insulating material, and a dust-free cloth is arranged between the upper layer and the lower layer of material; it is necessary to ensure that the dust-free cloth can continuously contact the storage The liquid level in the water tray to ensure that there is enough water transported to the absorber surface to ensure continuous evaporation. The invention only uses solar energy as the driving energy, does not need to consume other energy sources, and at the same time avoids the problem of replacing the filter element of the conventional water purifier. Sewage treatment and outdoor drinking water purification.