14results about How to "Achieve fire performance" patented technology

The invention relates to the technical field of cables, and discloses an environment-friendly cable with a protection function and a preparation method. Comprising an inner steel cable and further comprises a retroflexure spring which is arranged on the inner steel cable in a sleeving mode, an inner sleeve is arranged on the retroflexure spring in a sleeving mode, a set of first rolling connecting pieces which are regularly distributed are installed on the inner sleeve, a round supporting body is arranged on the outer sides of the first rolling connecting pieces, and a set of air containing cavities which are regularly distributed and a set of glue containing cavities which are regularly distributed are formed in the round supporting body; each air containing cavity is internally provided with a battery cell module and is filled with carbon dioxide, and each glue containing cavity is internally provided with an anti-buckling assembly and a group of regularly distributed second rolling connecting pieces. The cable has multidirectional compression resistance, passive fire prevention and active fire extinguishing performance in use, the cable is structurally provided with an anti-wear protection structure, the service life of the cable is effectively prolonged, and meanwhile, the cable is provided with an electric leakage color development and temperature change color development structure, so that the working state of the cable can be monitored in real time.

The utility model discloses a composite fireproof roller shutter with excellent fireproof performance, which belongs to the technical field of roller shutter doors and comprises an equipment main body, a folding driving component and a protective component are mounted on the equipment main body, and the folding driving component is connected with the protective component; the folding driving assembly comprises a driving assembly and a fixing assembly, the driving assembly is connected with the fixing assembly, and the driving assembly is connected with the equipment body and the protection assembly. By means of the mode, when a fire occurs, the driving assemblies are started, under the action of the fixing assemblies, the driving assemblies are sequentially unfolded to cover the upper portion of the showcase, meanwhile, the driving assemblies drive the protection assemblies to cover the side portions of the showcase, and all-directional protection on the showcase containing valuable commodities is achieved.

The application discloses a composite wall body with a dry connection structure, which comprises an outer wallboard, an inner wallboard and a connecting and fixing mechanism, wherein the connecting and fixing mechanism comprises a second connecting keel and a plurality of first connecting keels, the second connecting keel is a rectangular frame structure parallel to the outer wallboard, the outer side of the rectangular frame structure is covered and connected with a gypsum board sealing layer to form a rectangular plate, the first connecting keel is fixed between the outer wallboard and the rectangular plate on one side and between the inner wallboard and the rectangular plate on the other side, the side edge of the gypsum board sealing layer is connected with a cement insertion block and a steel bar fixing strip, a fitting opening is formed on the other side edge of the gypsum board sealing layer, a second connecting keel on one side of the fitting opening is provided with an insertion opening, and the cement insertion block can be inserted into the fitting opening. The cement insertion block and the steel bar fixing strip can be inserted into the inside of another composite wall body for fixing, and the prefabricated composite wall body can be fixed and reinforced.

The invention relates to the technical field of building outer wall heat preservation, in particular to a novel 360-degree continuous fireproof heat preservation and insulation system which comprises a three-dimensional heat preservation system, an outer wall heat preservation system and a connection heat preservation system, and the three-dimensional heat preservation system comprises a multi-face heat preservation outer wall, a heat preservation roof and a heat preservation ground; the outer wall heat preservation system comprises outer wall treatment layers, heat storage material layers and outer wall protection layers, the outer wall treatment layers are arranged on the two sides of a room, the heat storage material layers are arranged on the sides, away from room outer walls, of the outer wall treatment layers, and the outer wall protection layers are arranged on the sides, away from the outer wall treatment layers, of the heat storage material layers. The connection heat preservation system comprises a connection treatment layer, a heat insulation material layer and a connection protection layer, the connection treatment layer is arranged at the connection position, the heat insulation material layer is arranged on the side, away from the connection position, of the connection treatment layer, and the connection protection layer is arranged on the side, away from the connection treatment layer, of the heat insulation material layer. The method has the effect of improving the fireproof and thermal insulation performance of the building.

The invention relates to a low-temperature-resistant, impact-resistant, halogen-free and flame-retardant PC (polycarbonate) composite material which comprises the following components in parts by weight: 50-99.1 parts by mass of polycarbonate; 0.5 to 10 parts by mass of a toughening agent; 0.2 to 10 parts by mass of a toughening compatilizer; 0.1-5 parts by mass of a flame retardant; 0.05 to 2 parts by mass of an anti-dripping agent; the halogen-free flame-retardant PC alloy material has the beneficial effects that by adding the toughening compatilizer grafted with maleic anhydride, the compatibility between the toughening agent and PC resin is improved, the problems of PC notch sensitivity and stress concentration cracking are solved, and the flame retardants used in the halogen-free flame-retardant PC alloy material are all halogen-free auxiliary materials, so that the halogen-free flame-retardant PC alloy material is environment-friendly and free of pollution. The halogen-free flame retardant material belongs to an environment-friendly material, conforms to and meets national and international management and control and regulations, does not cause secondary pollution to the environment, is small in halogen-free flame retardant addition amount and remarkable in flame retardant effect, and can meet the flame retardant requirement and fireproof grade under the ultrathin thickness (smaller than or equal to 1.2 mm) in components containing PC and a toughening material.

This utility model relates to a concealed, electrically operated, airtight window specifically designed for low-temperature grain storage, belonging to the technical field of grain storage equipment. It includes: a window frame, fixedly installed on the wall of a grain warehouse; a window sash, movably connected to the window frame via hinges, allowing the sash to rotate relative to the frame to open and close the window; a sealing assembly, disposed around the sash and on the window frame, forming a seal between the sash and frame when the sash is closed; an electrically driven assembly, fixedly installed on the window frame, having a drive unit that is connected to the sash; and a locking assembly, including a latch and a latch, the latch being on the sash and the latch on the frame, locking the sash when it is closed. This invention addresses the technical problem that existing electrically operated lifting windows cannot meet the temperature stability and high sealing requirements of grain silos used for low-temperature grain storage, necessitating a more reliable sealing solution and structure.

The invention relates to a pneumatic opening scheme for a transformer accident oil drain pipeline, which is composed of a pneumatic valve, a bursting disc assembly and a pneumatic control system. When a serious fault occurs in the transformer and the oil needs to be drained, the bursting disc is first opened through the pneumatic control system, and then the pneumatic valve is opened to achieve remote manual or electronic control of the transformer oil draining in a safe area. At the same time, the pneumatic control system can open the pneumatic valve provided on the flame-retardant gas pipeline to inject flame-retardant gas into the transformer to achieve fire prevention and fire extinguishing; at the same time, it can also realize oil storage cabinet interception and directional oil drainage; at the same time, it adds the necessary conditions of optical detection and pressure detection for determining transformer fault oil drainage and nitrogen injection. This scheme solves the problems that the existing equipment cannot safely drain oil when the transformer is in danger and the existing oil drainage and nitrogen injection system is unreliable to start.

The invention relates to the technical field of aluminum veneers, in particular to a slotted aluminum veneer and a curtain wall thereof.The surface of the slotted aluminum veneer is sequentially sprayed with primer and finish paint, and the primer is composed of PVDF fluorocarbon resin, expanded microspheres, modified hollow glass microspheres, hexamethylene diisocyanate, an ammonium polyacrylate dispersing agent and deionized water; the finishing paint is prepared from PVDF fluorocarbon resin, thermosetting acrylic resin, a dispersing agent BYK-110, an acrylic leveling agent, butyl acetate and nano silicon dioxide. According to the slotted aluminum veneer prepared by the invention, the sound insulation performance and the wear resistance of the slotted aluminum veneer are improved by adding the expanded micro-beads and the modified hollow glass micro-beads into the primer, and the corrosion resistance of the slotted aluminum veneer is improved by the PVDF fluorocarbon resin, the thermosetting acrylic resin and the nano silicon dioxide in the finish paint.

The present invention belongs to the technical field of wall panels, and in particular, is a cast prefabricated wall panel, a connector, a wall and a prefabrication method, comprising a frame and a first core material; a first flow channel is provided on the first core material, and a second flow channel is provided between the first core material and the frame; a fluid flows through the first flow channel and the second flow channel so that the first core material and the frame form an integral structure, and also comprises a clamping piece, and the clamping piece is used to limit the first core material to the inside of the frame. The fluid of the present invention penetrates through the clamping piece, circulates inside the first core material, and gradually fills the gap inside the first core material and between the first core material and the frame, so that the frame, the clamping piece and the first core material form a whole, and the cast one-piece wall panel has a stable structure, low cost, and is convenient for large-scale industrial standardized batch production. While realizing basic functions such as sound insulation, heat preservation, moisture resistance, fire prevention and corrosion resistance, it also improves the safety of use.

The application provides an arc heater ballast resistor fireproof fixing device. The arc heater ballast resistor fireproof fixing device comprises a metal frame and a ceramic fixing assembly for fixing the ballast resistor on the metal frame, the ceramic fixing assembly comprises a first ceramic fixing piece, a second ceramic fixing piece and a ceramic buckle, the ballast resistor has a bending part and a connecting part connected with the bending part, the metal frame has a hollow part corresponding to the bending part, the first ceramic fixing piece is fixed in the hollow part of the metal frame, the second ceramic fixing piece is fixed on the metal frame, and the bending part and the connecting part of the ballast resistor are fixed on the first ceramic fixing piece and the second ceramic fixing piece through the ceramic buckle respectively. The arc heater ballast resistor fireproof fixing device solves the fire risk caused by the sharp rise of the surface temperature of the ballast resistor under the abnormal condition of large current or cooling water supply, and has the advantages of simple structure, light weight and high reliability.

This utility model relates to the field of polyethylene pipe technology, specifically disclosing a fireproof and heat-insulating polyethylene pipe, including an inner pipe layer. The outer wall of the inner pipe layer is co-extruded and composited from the inside to the outside, forming an inner flame-retardant layer, a heat-insulating layer, a reflective layer, and an outer fireproof protective layer. Both the inner flame-retardant layer and the outer fireproof protective layer are flame-retardant composite material layers, and the reflective layer is a high-reflectivity material layer. Through a multi-layer composite structure, it integrates pressure-bearing transportation, bidirectional flame retardancy, high-efficiency heat insulation, and radiation reflection functions into one, solving the various drawbacks of traditional pipes that require subsequent wrapping construction. It achieves inherent fire resistance and self-insulation of the pipe product, significantly improving the long-term safety, reliability, and energy-saving benefits of building pipeline systems. At the same time, it simplifies the installation process, reduces overall costs, and is safer and more environmentally friendly due to the selection of environmentally friendly materials and halogen-free flame-retardant properties.

The present invention relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet with protective effect used in factory areas, comprising a cabinet body, wherein the upper and lower ends of the cabinet body are respectively fixedly connected with an upper fixed plate and a lower fixed plate, and the bottom of the lower fixed plate is fixedly connected with a base. The present invention provides a reversing valve that can control the flow direction of gas, so that when the heat dissipation of the internal chamber of the cabinet is required, the gas can be controlled to flow only from the top of the piston plate to the bottom of the piston plate, and the hot air inside the cavity is discharged through the up and down movement of the piston plate, and each time the piston plate moves upward, it will also recoil the dust filter block, and when a fire occurs in the cavity or the temperature is high, the gas can be controlled to flow only from the bottom of the piston plate to the top of the piston plate, so that when the piston plate moves upward, part of the air inside the cavity is extracted, so that the air inside the cavity is thin and does not have the conditions for combustion, thereby effectively suppressing the fire and the spread of the fire.

The application discloses a kind of quick breaking electrical fire protection device, it is related to electrical fire protection device field, including fireproof shell and installation backplate, the bottom of fireproof shell is provided with dehumidification mechanism.This kind of quick breaking electrical fire protection device, by dehumidification mechanism can carry out dehumidification processing to equipment inside, blow heat dissipation fan can blow, can directly blow the air in the inner chamber of fireproof shell downwards, then cooperate with moisture fan, so that the humid air in equipment inside can be quickly sucked and removed, subsequently when humid air is sucked into the inner chamber of shell, will be sucked and removed with the dust blown off, effectively avoid that dust can be accumulated in the inside of fireproof shell, will not cause influence to electrical element, and by filter screen still can directly filter small dust, impurity etc., to effectively guarantee the dry degree of equipment inside, can also avoid to accumulate a large amount of dust, improve equipment service life.

The invention relates to a high-temperature-resistant, high-humidity-aging-resistant, halogen-free and flame-retardant PC (polycarbonate) composite material which comprises the following components in parts by weight: 50-98.5 parts by mass of polycarbonate; 1-10 parts by mass of a toughening agent; 0.2 to 10 parts by mass of a toughening compatilizer; 0.2 to 10 parts by mass of a flame retardant; 0.05 to 2 parts by mass of an anti-dripping agent; the PC composite material has the beneficial effects that by utilizing the characteristic that the fluidity of the assistant resin material is better than that of PC, the enrichment and wrapping effects on the surface of a product can be realized during injection molding, so that a shielding effect on water and moisture is formed, and the high-temperature and high-humidity resistance of the PC composite material can be remarkably improved; and the flame retardants used in the invention are halogen-free flame retardants, have the characteristics of small addition amount and remarkable flame retardant effect, and can realize and meet the flame retardant requirement and fireproof grade under the condition of ultrathin thickness (less than or equal to 1.0 mm).