201results about How to "Prevent drying" patented technology

The invention discloses a light-emitting diode lamp which comprises a heat radiating part, an optical part and an electric part. The heat radiating part comprises a heat exchange loop device. The heat exchange loop device comprises a first heat radiator, a heat absorber plate, a second heat radiator, a first cover plate, a heat-insulating element and an annular second cover plate. The first heat radiator, the heat absorber plate, the second heat radiator, the first cover plate and the second cover plate form a closed first cavity body; and a second cavity body opened toward a top end is formed in the second heat radiator. A capillary structure is arranged on the surface of a side wall inside the first cavity body. A working fluid is filled in the capillary structure. The heat-insulating element is arranged in the first cavity body and between the first cover plate and the heat absorber plate. The heat-insulating element comprises a heat-insulating plate which is arranged near the first cover plate and provided with a plurality of through holes. The heat-insulating plate of the heat-insulating element can effectively prevent a reflowing low-temperature condensate from being in contact with reverse high-temperature saturated steam directly for heat transfer to increase the flow resistance and the heat resistance of the condensate reflowing to an evaporation part.

The invention relates to a light-emitting diode lamp and a light engine adopted by the light-emitting diode lamp. The light-emitting diode lamp comprises an optical chamber, an electrical chamber and a heat radiating chamber, wherein the heat radiating chamber is arranged between the optical chamber and the electrical chamber; the optical chamber comprise at least one light-emitting diode light source and a light emergent passage; the electrical chamber comprises a shield and a circuit board; the heat radiating chamber comprises a heat radiator and a loop device; the heat radiator comprises an annular heat radiating base, a plurality of fins which are distributed at the peripheral surface of the heat radiating base, as well as a heat absorbing plate and a heating radiating cover plate which are respectively arranged at both ends of the heat radiating base; the heating radiating base, the heat absorbing plate and the heat radiating cover plate form a sealed cavity; the working fluid is filled into the cavity; the light-emitting diode light source is arranged on the outer surface of the heat absorbing plate; the loop device is arranged in the cavity and divides the cavity into an evaporating part, a condensing part, a steam passage and a reflux passage, and a capillary structure is filled into the reflux passage.

The invention discloses a preparing method for coal-based briquette active carbon without a binding agent.The forming process comprises the steps that raw material coal is prepared into shaped coal with a shaping process; the obtained shaped coal is broken and granulated, and then carbonization treatment and activation treatment are carried out to prepare active carbon.In the preparing method, the raw material coat shaping process is high in coal variety adaptability, a shaped coal product with the strength higher than 90% can also be prepared even with non-caking coal with the maximum shaping difficulty as the raw material coal under the situation that no binding agent needs to be adopted, and thus the quality such as the strength of the active carbon can be easily improved.

An alkaline storage battery has a negative electrode using a hydrogen-absorbing alloy represented by a general formula Ln1-xMgxNiyAz wherein Ln is at least one element selected from rare-earth elements including Y, Ca, Zr, and Ti, A is at least one element selected from Co, Fe, Mn, V, Cr, Nb, Al, Ga, Zn, Sn, Cu, Si, P and B, and 0.15<=x<=0.30, 0<z<=1.5, and 2.8<=y+z<=4.0 are satisfied. The hydrogen-absorbing alloy has a hexagonal system crystal structure or a rhombohedral system crystal structure as its main phase and has a subphase of line which average number of not less than 50 nm in thickness existing in the range of 10 [mu]m10 [mu]m in the cross section of the main phase is 3 or less.