11results about How to "Barrier delivery" patented technology

A water supply and drainage engineering pipeline connecting device belongs to the technical field of building outer pipes and comprises an outer pipe, second flanges are arranged at the two ends of the outer pipe respectively, an inner pipe is sleeved with the outer pipe, a first flange is arranged at one end of the inner pipe, a plurality of connecting holes are formed in the first flange and the second flanges, and a rubber ring is fixedly installed at the other end of the inner pipe. A hollow cavity is formed among the rubber ring, the inner pipe and the outer pipe, the waterproof cloth is fixedly installed in the inner pipe, the waterproof cloth is cylindrical, and the middle of the waterproof cloth is tensioned. The waterproof cloth is simple in structure and ingenious in conception, the waterproof cloth has cloth flexibility, when the waterproof cloth is impacted by water, buffering and damping can be conducted, impact during falling can be reduced, and therefore noise is reduced, the waterproof cloth can deform after being impacted, and dirt is not prone to being attached to the surface; the middle of the waterproof cloth is tensioned to be rectangular, so that the flowing speed of water flowing along the inner surface is smaller when the water passes through, noise is further reduced, in addition, the hollow cavity can block noise transmission, actual requirements can be met, and the waterproof cloth is suitable for popularization.

The utility model discloses a kind of heating device of rapid heating and intelligent closestool, and it is related to intelligent closestool technical field.The utility model's heating device includes first heating film and second heating film, and first heating film and second heating film are symmetrically arranged and are connected in series;First heating film and second heating film respectively include sequentially arranged adhesive layer, first insulating layer, heating layer, second insulating layer and heat insulation layer.The heating device of the utility model can make closestool seat ring target area rapid temperature rise to reach required temperature, and can improve the versatility of heating device, so that heating device can be adapted to multiple specifications of seat ring.

The utility model relates to the technical field of condensers, in particular to a condenser frame with good heat preservation performance, which comprises a beam, a first opening is arranged at the upper end of the beam, two long sides of the beam are respectively provided with a first bending portion, and a second opening is arranged at the lower end of the beam. The two first bending parts are perpendicular to the long edges respectively and extend oppositely to form a first opening, two first heat preservation materials and a second heat preservation material are arranged in the cross beam, the two first heat preservation materials are arranged on the inner sides of the two first bending parts respectively, and the second heat preservation material is arranged on the inner side of the first opening; a longitudinal beam; the cross beam is connected with the longitudinal beam, and the longitudinal beam is connected with the base. The condenser solves the problems that a metal frame of a traditional condenser is high in heat conductivity coefficient, under the condition that the external temperature of the condenser is low, dew is prone to being formed on the surface of the condenser, and the working efficiency of the condenser is reduced.

The invention belongs to the technical field of thermal protection, and discloses a composite thermal protection device and a bearing cavity. The composite thermal protection device comprises a thermal protection shell, a thermal insulation assembly and a spraying assembly. One side of the thermal protection shell is provided with a thermal insulation surface, and the other side of the thermal protection shell is provided with a cooling surface opposite to the rotating wall surface of the rotating shaft; the heat insulation assembly is arranged in the protection cavity to reduce the transfer efficiency of heat from the heat insulation surface to the cooling surface; the spraying assembly is used for spraying lubricating oil to the cooling face to form an oil film on the cooling face. When the composite thermal protection device is used, the heat transfer efficiency is reduced by the thermal protection shell and the heat insulation assembly, and meanwhile, an oil film is formed on the cooling surface to absorb heat of the cooling surface in time, so that the composite thermal protection device can keep a good thermal protection effect in the continuous operation process, and the service life of the composite thermal protection device is prolonged. And the possibility of continuous temperature rise in the rotating wall surface of the rotating shaft is effectively reduced.

The utility model discloses a heat preservation clean plate which comprises a base plate and two layers of panels, the two layers of panels are symmetrically arranged on the two sides of the base plate respectively, and heat reflection layers are arranged between the base plate and the panels. Wherein the heat reflection layer comprises an EPP plate and heat preservation particles, on the cross section of the EPP plate, the EPP plate is in a wave shape and is fixedly connected between the base plate and the face plate, cavities are formed between the EPP plate and the base plate and between the EPP plate and the face plate, the heat preservation particles are arranged in the cavities, and the interiors of the cavities are vacuum. The low heat conductivity of the EPP plate is utilized, the heat reflecting layer close to the indoor side can effectively prevent indoor heat from being dissipated to the outdoor side, meanwhile, the heat reflecting layer close to the outdoor side can effectively prevent outdoor heat from being transmitted to the indoor side, the stability of the indoor temperature is improved, and the heat preservation effect is improved.

The application relates to the technical field of fireproof flame-retardant materials, in particular to a self-extinguishing material, a preparation method and application. The self-extinguishing material is prepared by the preparation method. The preparation method comprises the following steps: preparing a fire extinguishing slurry; uniformly coating the fire extinguishing slurry on a porous flame-retardant foam material to obtain a fire extinguishing functional layer; wrapping a flame-retardant packaging layer, an elastic buffer layer and a corrosion and moisture prevention layer from inside to outside on the outer side of the fire extinguishing functional layer to obtain the self-extinguishing material. The application comprises the application of the self-extinguishing material in building fire prevention, new energy battery thermal runaway protection, electrical equipment fire prevention and / or closed space fire extinguishing. The self-extinguishing material prepared by the application can capture and consume combustion free radicals, and the self-extinguishing function is realized.

The present application relates to wave-absorbing material technical field, specifically to a kind of flame-retardant wave-absorbing material based on polystyrene foam and preparation method thereof.The present application uses one-dimensional magnetic sepiolite fiber and two-dimensional modified graphene oxide as raw material, three-dimensional directional porous structure composite aerogel is prepared by freeze drying, composite aerogel, flame retardant, film forming agent, dispersing agent, defoaming agent and deionized water are obtained to obtain wave-absorbing coating;Foamed polystyrene beads are put into wave-absorbing coating, and after stirring evenly, drying, molding, the flame-retardant wave-absorbing material based on polystyrene foam is obtained.The flame-retardant wave-absorbing material based on polystyrene foam prepared by the present application not only has excellent wave-absorbing performance, but also has excellent flame-retardant performance and mechanical properties.

The utility model discloses a kind of anti scalding double-layer PET milk tea cups, it is related to water cup technical field, including cup body, the cup body upper end is provided with cup cover;The cup body adopts double-layer setting, including outer wall, inner wall, cavity is arranged between outer wall and inner wall;The outer wall adopts PET material, the inner wall adopts modified PCT material;The inner wall upper end edge forms cup mouth ring, the cup mouth ring lower end is provided with connecting groove;The outer wall upper end is connected with connecting ring, the connecting ring is located in connecting groove, and both are connected by high-temperature-resistant sealant;Paste formula thermometer is provided in the cavity.The utility model design structure is reasonable, it passes through and adopts double-layer cup body structure, outer wall adopts PET material, inner wall adopts modified PCT material, cavity is set in the middle, can effectively block heat transfer, play good anti scalding effect, while inner wall modified PCT high-temperature-resistant characteristic, avoid the risk of harmful substance migration caused by PET directly contact high-temperature beverage.

The application discloses a high-temperature-resistant silicon-modified epoxy sealing primer, and relates to the technical field of anticorrosive primers. The high-temperature-resistant silicon-modified epoxy sealing primer comprises components A and B in a weight ratio of 88-93:7-12. The component A comprises, by weight, 25-35 parts of modified epoxy resin, 15-18 parts of composite solvent, 55-65 parts of zinc powder, 2-4 parts of graphene paste, 4-6 parts of calcium sulfate, 0.3-0.7 parts of fumed silica, 1.2-1.8 parts of a compounded silane coupling agent and 0.8-1.4 parts of an additive. The component B comprises, by weight, 7-12 parts of a modified curing agent. The modified epoxy resin is obtained by grafting modification of an amino-terminated polyether-isocyanate prepolymer. The modified curing agent is prepared by grafting modification of a polyamide curing agent with HTPB. The modified epoxy resin and the modified curing agent are obtained by grafting modification of an amino-terminated polyether-isocyanate prepolymer, and the modified epoxy resin and the modified curing agent are synergistic. After the siliconization treatment of the compounded silane coupling agent, the high-temperature resistance, the toughness and the interfacial adhesion are significantly improved, and the high stability and the adaptation to complex working conditions are achieved.

The utility model discloses a modularized fresh air dehumidifier which comprises a machine shell, a plurality of heat preservation plates arranged in the machine shell, a fan module, a coil pipe module, a filter screen module, an electric control module, a fresh air opening, an air return opening and an air supply opening, and the fresh air opening, the air return opening and the air supply opening are formed in the machine shell. The fan module is arranged on one side of the shell, the coil module is arranged on the other side of the shell, the fresh air inlet and the return air inlet are arranged on the other side of the shell in parallel, the fresh air inlet and the return air inlet are connected with the filter screen module, the heat preservation plates are arranged on the periphery of the inner wall of the shell, and the shell is isolated from the fan module, the coil module, the filter screen module and the electric control module through the heat preservation plates. The sealing device is good in sealing performance, high in reliability, flexible in configuration and easy to maintain.

The application discloses a kind of fire-retardant lignin-based formaldehyde-free adhesive and preparation method thereof, belong to adhesive preparation technical field, for solving in prior art, adhesive bonding strength and flame retardant performance need to be further improved technical problem;The present application is with lignin as main body, sequentially through triazine, phosphonate and nitrogenization modification, introduce nitrogen, phosphorus and polar group, prepare fire-retardant glue precursor, then combine catechol polyol and boric acid reaction generated borate polyol, and the hybrid prepolymer obtained by the action of amino POSS sol and glycerol carbonate, synergistic curing under the action of initiator, construct dense stable crosslinking network, the system has the environmental protection of lignin and the stability of organic-inorganic hybrid material, give adhesive high strength, excellent water resistance and flame retardant performance, and formaldehyde release is zero, suitable for green environmental protection field application.