3results about How to "Insulation to avoid" patented technology

The utility model relates to work piece heat treatment technical field, and disclose a mould steel heat treatment furnace temperature zoning regulation and control device, including heat treatment furnace main part, heat treatment furnace main part is divided into preheating treatment area, high temperature treatment area and soaking treatment area, the top surface of preheating treatment area and soaking treatment area front end and rear end all are fixedly connected with heat shield subassembly. This mould steel heat treatment furnace temperature zoning regulation and control device, through the setting of circulation subassembly, when preheating treatment area's heat -proof door opens, starts circulation fan, opens solenoid valve, the heat of high temperature treatment area is conveyed to filter box through high temperature resistant pipe B, after filtering through honeycomb ceramic filter core, along high temperature resistant pipe A is conveyed to preheating treatment area, to realize the heat loss after furnace door opening can be quickly replenished, after the heat loss of preheating treatment area, need additional increase replenishing time, help to improve the processing efficiency of heat treatment furnace.

This application belongs to the field of nuclear power engineering construction technology, and relates to an installation method for prefabricated direct-buried pipelines with polyethylene outer sheaths and polyurethane insulation for nuclear power plants. The method includes trench excavation and welding pit preparation, pipeline hoisting and positioning, pipeline assembly, pipeline welding, post-weld inspection, pressure testing, insulation joint repair, and trench backfilling. By excavating a welding pit directly below the predetermined butt weld position of two adjacent prefabricated insulated pipes, a welding operation space accessible to personnel is created below the pipe, improving welding accessibility and weld quality. Furthermore, by overlapping the outer sheath with a polyethylene hot-melt sleeve, hot-melt welding, injection of polyurethane foam, and orifice sealing, a continuous sealing and insulation repair layer is formed, improving the waterproofing, corrosion resistance, and insulation reliability of the joint.

The utility model relates to modularization buckle mounting structure of cold storage insulation board, this modularization buckle mounting structure of cold storage insulation board, including angle seat, three mutually perpendicular settings right angle board are fixedly installed on angle seat, three right angle boards all are provided with the fixed part for connecting with cold storage wall, the threaded hole is all set up to right angle board both sides side wall, when using, the insulation board corner position that sticks together cold storage top wall and both sides wall is inserted into the gap between air bag and angle seat inner wall formation, until three insulation board corner place sticks together, then through fixed bolt cooperation threaded hole fixes the position of insulation board outside gap, finally opens sealed valve, through the joint is in the air bag and carries out inflation, makes air bag swell, utilizes the air bag after swelling and presses tightly insulation board corner position, makes multiple insulation board corner position each other closely sticks together, avoided as far as possible after long time use easily of insulation board corner position rises, leads to the problem that the sealing and heat preservation performance of insulation board corner place decline.