48results about How to "Does not affect heat retention" patented technology

The invention discloses a halogen-free flame-retardant polystyrene foam composite material which is prepared through the following steps: evenly mixing 100 parts of foam particles prepared by a conventional technology with a binder which consists of 10-80 parts of an aerogel matrix, 0-10 parts of an aerogel crosslinking agent, 10-50 parts of nano clay and 10-40 parts of a halogen-free flame retardant so as to obtain a mixture, performing compression-molding refrigeration and drying the mixture, wherein the weight ratio of the foam particles to the aerogel matrix binder in the foam composite material is 1:(0.3-1.8), the density is 21-44kg / m<3>, the vertical burning grade is UL-94V-0, the limit oxygen index is 26-45% and the heat conductivity is 0.031-0.035W / mK. Since the aerogel is low in density and heat conductivity, excellent in binding performance, and capable of jointly acting with nano clay and halogen-free flame retardant to provide outstanding flame retarding performance and charring performance, the foam composite material can keep low density and good heat preserving performance and the flame retarding performance of the composite material is greatly enhanced; besides, the technology is mature, simple to operate, easy to control and beneficial to popularization and application.

The invention discloses a process method for chopped fiber reinforced aerated concrete. A process for sequentially coating resin and inorganic compound particles on a fiber surface and adding coated chopped fibers and a dispersing agent into mixed slurry of autoclaved aerated concrete before the resin is cured is adopted, so that heat resistance and alkali resistance are improved, the bonding problem of the chopped fibers and a substrate and the dispersing problem of the chopped fibers are solved, and the reinforcing function of the chopped fibers can be brought into full play during high-temperature and high-pressure curing of the autoclaved aerated concrete. The aerated concrete reinforced by the method can keep the original light and heat preservation properties, and has the advantage of high intensity. By the reinforcing method, the formula of the original aerated concrete is not required to be changed; and the method is simple and practicable.

The invention discloses a heat insulation structure of an isobutane dehydrogenation device. The heat insulation structure comprises pipelines connected through flanges, and heat insulation layers are arranged outside the pipelines. The heat insulation structure is characterized in that heat insulation chambers wrapping the flanges are arranged outside the flanges on the pipelines, each heat insulation chamber comprises a lower heat insulation chamber which can wrapping the corresponding flange and an upper heat insulation cover, the upper portion of each lower heat insulation chamber is provided with an opening, each upper heat insulation cover covers the opening of the corresponding lower heat insulation chamber, an upper port of each lower heat insulation chamber is provided with multiple grooves penetrating through the interior and exterior of the corresponding heat insulation chamber, the outer side of a lower port of each upper heat insulation cover is provided with a shield cover, each shield cover can cover the openings in the outer sides of the grooves in the upper port of the corresponding lower heat insulation chamber after closing of the corresponding upper heat insulation cover, and a gap is reserved between the outer side wall of each shield cover and the outer side wall of the corresponding lower heat insulation chamber. According to the heat insulation structure of the isobutane dehydrogenation device, the heat insulation effect is good, maintenance is convenient, leaked hydrogen can be effectively prevented from being gathered in the heat insulation chambers, and operation safety of the device is ensured.

The invention discloses a temperature-keeping, ventilating and energy-saving dry-method structure of a slope roof and a construction method thereof. The structure comprises a cement mortar leveling layer, a waterproof cushion layer, a temperature-keeping and draining layer, cross roof wood battens and roof tiles, wherein the temperature-keeping and draining layer consists of temperature-keeping plates, supporting wood brackets, longitudinal downstream wood strips and aluminum foil coil materials; the supporting wood brackets are arranged on the waterproof cushion layer; the temperature-keeping plates are fully paved on the waterproof cushion layer; the temperature-keeping plates are clamped between the supporting wood brackets; the longitudinal downstream wood strips are pressed on the temperature-keeping plates; the aluminum foil coil materials are paved on the longitudinal downstream wood strips and are fixedly connected with the longitudinal downstream wood strips through nails; the aluminum foil coil materials, the longitudinal downstream wood strips and the temperature-keeping plates enclose to form a longitudinal airtight air layer. The structure has the best advantages of very good heat-insulating ability and good temperature-keeping and energy-saving property, the heat conductivity of the roof can be effectively adjusted, and the energy-saving effect of a house can be greatly improved.

The invention discloses a pitched roof mounting system for a solar thermal collector and a construction method of the pitched roof mounting system. The system comprises a pitched roof and the solar thermal collector arranged on the pitched roof, wherein the pitched roof consists of a structural layer, a cement mortar leveling layer, a waterproof pad layer, a heat preservation water drainage layer, transverse tile hanging wood bars and roof tiles, wherein the heat preservation water drainage layer consists of a heat preservation plate, wood carrying brackets I, longitudinal downstream wood bars and an aluminum foil coiled material; two-side concave-shaped water drainage ditches are formed between the solar thermal collector and the longitudinal downstream wood bars on the left side and the right side of the solar thermal collector; an upper-side concave-shaped water drainage ditch is formed between the solar thermal collector and transverse lap-joint wood bars; a lower-side concave-shaped water drainage ditch is formed between the solar thermal collector and the roof tiles on the lower side of the solar thermal collector. According to the system and the construction method which are disclosed by the invention, the construction technology is changed; the solar thermal collector can be firmly and stably mounted; the pitched roof has energy-saving and ventilating effects; the heat insulation and preservation efficiency of the pitched roof can be improved, and the surface of a building is attractive.