2results about How to "Flow does not affect" patented technology

The utility model discloses a combustible gas detector gas-collecting hood, which particularly relates to the technical field of detector gas-collecting hoods, and comprises a combustible gas detector, a detection tube is fixedly connected to the bottom of the combustible gas detector, a limiting ring and a protective tube are sleeved in the middle of the detection tube, and a gas-collecting hood is arranged at the bottom of the combustible gas detector. An exhaust hole and a mounting hole are formed in the top of the gas-collecting hood, and a plurality of reinforcing rods are fixedly connected to the middle of the gas-collecting hood. According to the utility model, the gas-collecting hood is firstly mounted in the middle of the detection tube, and is clamped and fixed through the matching of the protective tube and the limiting ring, so that the gas-collecting hood can be conveniently mounted and fixed, the gas-collecting area is increased through the gas-collecting hood, sufficient gas collection can be ensured, and a better dustproof and rainproof effect can be achieved during use; and meanwhile, the dustproof net plate can be used for carrying out dustproof protection on entering gas, so that impurities are prevented from entering the detection channel and blocking gas flow, and the protection effect is improved.

The application relates to the technical field of energy storage battery pack cooling devices, in particular to a thermal boundary layer control and heat conduction plate compensation battery pack liquid cooling device which comprises a lower box body. A bottom plate is arranged at the bottom of the lower box body. The cooling liquid in the lower liquid inlet pipe forms a stable laminar flow through the buffer channel, enters the bottom of the lower box body, and is not directly washed to the battery at the bottom due to the fact that the bottom support member lifts the battery body, but flows over the surface of the battery from bottom to top after being gathered in the cavity, and is then discharged through the upper liquid outlet pipe two of the upper box body. The spoiler is located in the gap between the batteries, can thin the thermal boundary layer, and reduce the heat exchange efficiency difference between the upper and lower ends of the battery. The heat conduction plate evaporation section contacts the battery for heat conduction, the condensation section extends into the cavity through the slot-shaped opening of the upper box body, the cooling liquid flowing through the cavity through the upper liquid inlet pipe of the upper box body exchanges heat with the condensation section, and finally the cooling liquid is discharged from the upper liquid outlet pipe one and two of the upper box body, completing the cooling cycle.