4results about How to "Relieve overheating" patented technology

The utility model provides a kind of valve group and compressor of miniaturization reciprocating compressor, it is related to compressor field, to the problem that the temperature of existing small compressor cylinder head is too high, gas flow resistance increases and leads to efficiency reduction, by the offset structure of valve plate on the valve plate subassembly suction hole, enlarge suction valve port flow area, reduce suction resistance, reduce the pressure loss and friction heat in suction process, to reduce suction overheating, from the source to relieve cylinder head overheating problem, allow to adopt smaller size cylinder hole, meet the demand of compressor miniaturization, the valve tongue both sides of suction valve piece are provided with contraction part to form waist, exhaust hole is arranged between two sides waist, adapt to the compact space of miniaturization valve group, suction muffler outlet and cylinder cover keep apart, leave gap, cut off the heat conduction path between cylinder cover and suction muffler, form heat insulation, reduce suction overheating, reduce cylinder head temperature benign cycle, improve miniaturization reciprocating compressor efficiency.

The utility model discloses a flow field runner structure of a square electrolytic bath. The flow field runner structure comprises a square bath body, a left end pressing plate, a right end pressing plate, a hydrogen side sealing gasket, a polar plate, an oxygen side sealing gasket and a multi-stage runner system, the left end pressing plate is provided with a hydrogen side alkali liquor inlet, an oxygen side alkali liquor inlet, a hydrogen and alkali liquor outlet, an oxygen and alkali liquor outlet and a drainage long circular groove, and the right end pressing plate is provided with an oxygen side alkali liquor long circular groove; the hydrogen side sealing gasket and the oxygen side sealing gasket are communicated with the corresponding holes of the polar plate through the axial holes to form hydrogen side alkali liquor first to third channels, oxygen side alkali liquor first to third channels, hydrogen and alkali liquor first to fifth channels and oxygen and alkali liquor first to fourth channels. The hydrogen side alkali liquor and the oxygen side alkali liquor are physically isolated through independent circulation flow channels, the uniformity of a flow field is ensured through the multi-stage parallel and reverse flow design, the gas purity, the alkali liquor circulation efficiency and the mass transfer performance are effectively improved by combining the 1.6 MPa high-pressure working condition, and meanwhile energy consumption and the local overheating risk are reduced.

The application provides a test device and method for testing the influence of photovoltaic on vegetation growth, and relates to the technical field of photovoltaic. A photovoltaic influence module has a photovoltaic vegetation planting area, and a natural control module has a control vegetation planting area; a photovoltaic simulation module includes a photovoltaic panel simulation piece and a thermal radiation simulation piece, the photovoltaic panel simulation piece is arranged above the photovoltaic vegetation planting area to simulate the photovoltaic panel shielding the photovoltaic vegetation planting area; the thermal radiation simulation piece is arranged in the photovoltaic vegetation planting area to simulate the thermal radiation of the photovoltaic vegetation planting area; a rainfall simulation module is used to spray irrigation water above the photovoltaic panel simulation piece above the photovoltaic vegetation planting area, so that the irrigation water can form the form of rainfall after being shielded by the photovoltaic panel; a control rainfall simulation module is used to simulate natural rainfall in the control vegetation planting area. The application reproduces the environment under the photovoltaic panel through the synergistic effect of the photovoltaic panel simulation piece, the thermal radiation simulation piece and the differential rainfall system.

The application discloses a composite buffer type low-damage brake performance enhancing device, which comprises a brake disc, a first brake assembly and a U-shaped block arranged on the brake disc, a blocking mechanism arranged on the U-shaped block, a driving mechanism arranged on the U-shaped block and a second brake assembly arranged on the driving mechanism, and the U-shaped block is inverted U-shaped; the second brake assembly comprises double-cylinder friction mechanisms and single-cylinder friction mechanisms which are simultaneously arranged on the output end of the driving mechanism, an E-shaped block is arranged on the double-cylinder friction mechanisms, and the lower middle part of the E-shaped block is slidably connected with the upper end of the single-cylinder friction mechanisms; the blocking mechanism is used for blocking the E-shaped block, so as to block the movement of the double-cylinder friction mechanisms and make the single-cylinder friction mechanisms be able to be compressed on both sides of the brake disc; air inlet mechanisms and air outlet mechanisms are arranged on the upper end of the E-shaped block, and a first air outlet groove for air outlet is arranged on the blocking mechanism. The application has the advantages of high-efficiency heat dissipation, adjustable composite brake mode, low abrasion and buffering and damping.