2results about How to "Small inner diameter" patented technology

The diversion tunnel flood discharge structure comprises a diversion tunnel, a flood discharge pipe, a pressurizing pipe and an air compressor, the flood discharge pipe is fixedly arranged, one end of the flood discharge pipe is connected with the water outlet end of the diversion tunnel, the other end of the flood discharge pipe is connected with a river channel, one end of the pressurizing pipe is connected with the flood discharge pipe, and the other end of the pressurizing pipe is connected with the air compressor. The inner diameter of the pressurizing pipe is smaller than that of the flood discharge pipe. The diversion tunnel flood discharge structure is simple in overall structure, high in flood discharge efficiency and low in construction difficulty and cost.

The utility model relates to battery technical field discloses battery pack and electrical equipment, cooling device includes: transfusion subassembly, including liquid inlet pipe and liquid outlet pipe, a plurality of cooling components, cooling component includes heat exchange part and connecting seat, and the inside of heat exchange part has the cooling channel for the circulation of cooling liquid, and connecting seat has liquid inlet part and liquid outlet part, and at least one connecting seat still has input part, and at least another connecting seat still has output part, and liquid inlet part communicates with the liquid inlet of cooling channel, and liquid outlet part communicates with the liquid outlet of cooling channel, and liquid inlet part communicates with liquid inlet pipe through input part, and liquid outlet part communicates with liquid outlet pipe through output part, and electric core, the utility model will liquid inlet part, liquid outlet part, input part and output part be integrated to corresponding connecting seat respectively, and through single component can realize multiple connection functions simultaneously, and heat exchange part can be connected with adjacent heat exchange part or corresponding pipeline through a connecting seat, can reduce the quantity of connecting structure, and the structure is simplified also reduced the risk of liquid leakage.