220results about How to "Prevent the spread of fire" patented technology

A fire retardant wooden door that prevents the spread of fire through the door during a fire. The fire retardant wooden door has at least one door panel connected to stiles and rails by tongue and groove joints, and the tongue and groove joints have intumescent material therein. Each of the tongue and groove joints includes a tongue section having the intumescent material along a distal edge of the tongue section which expands upon exposure to heat or fire to seal the tongue and groove joints in order to prevent the heat or fire from passing through the door during a fire. Each of the tongue sections includes an interior channel extending along the axis of the tongue section, and the interior channel extends into the door panel. The interior channel has the intumescent material embedded therein which expands upon exposure to heat or fire to further seal the tongue and groove joints in order to prevent the heat or fire from passing through the door during a fire.

The invention discloses a dustproof and heat radiation electric power cabinet having a fire extinguishing function. The dustproof and heat radiation electric power cabinet comprises an electric powercabinet. The bottom parts of the left and right side walls of the electric power cabinet are evenly provided with multiple air inlet holes. The middle position of the top wall of the electric power cabinet is evenly provided with multiple air outlet holes. The left and right side walls and the top wall of the electric power cabinet are slidably connected with ventilating plates through slide rails, and the ventilating plates are provided with ventilating holes. The left and right side walls and the top wall of the electric power cabinet are fixedly provided with fixing blocks which are connected with one end of the ventilating plates through springs. The other end of each ventilating plate is fixedly connected with a second buckle. First buckles buckled with the second buckles are hinged on the bottom part and the side walls of the electric power cabinet through supports. The material of the first buckles is iron. Electromagnets matched with the first buckles are fixedly connected on the bottom part and the side walls of the electric power cabinet. Electrification is performed through the electromagnets so that the buckles are enabled to be released, and the ventilating plates slide to seal the air inlet holes and the air outlet holes to isolate oxygen and spreading of the fire can be prevented, the fire can be quickly extinguished and the loss can be reduced.

Disclosed is an incombustible composition, an incombustible construction product using the incombustible composition, and a method of producing the incombustible construction product. The incombustible composition includes 1 to 80 wt % of organic or inorganic fiber, 1 to 80 wt % of fly ash or bottom ash, 1 to 80 wt % of fire-proofing agent, and 1 to 60 wt % of fire-retardant curing agent. Additionally, the method includes mixing components, constituting the incombustible composition, with each other, and shaping the incombustible composition using a roller press or an autoclave. Therefore, the incombustible composition is advantageous in that it is environmentally-friendly because it contains waste materials, and that it has excellent hardness, strength, and water resistance. Other advantages are that its production costs are relatively low, and that it has excellent incombustibility, depending on the contents of the components constituting the incombustible composition.

The invention relates to a fireproof door used on a building. The fireproof door comprises a door frame and door plates which are respectively arranged at two sides of the door frame. The fireproof door is characterized in that the door plates are respectively glued with the door frame through bonding layers and nailed with the door frame through connecting members, and at least one side of the door plates is a counter-fire side and is a fireproof plate. The invention has the outstanding substantive characteristics that 1, at least one door plate is the fireproof plate, so that a flame retardant purpose is achieved; 2, the door frame, door mullions and an unexposed side are made of flame retardant materials and cannot spontaneously ignite at a relatively higher temperature, and the fireproof effect of the fireproof door is further improved; 3, a heat insulating layer is filled in a cavity formed by the two door plates, the door frame and the door mullions, which is favorable to reducing the high temperature of the counter-fire side, transferring the heat of the counter-fire side to the unexposed side, preventing the temperature from gradually raising and promoting flame retardant wood to lie in an environment below the spontaneous ignition temperature as much as possible; and 4, a metal layer is also arranged on the outer side of the counter-fire side, and deformation phenomena which are caused as different parts of the door plates lose different contents of water are avoided.

In a fire control system for an elevator, the time for the fire and smoke to reach the elevator hall of each floor of a building during fire is pre-calculated as the evacuation time of the floor. When the evacuation time of a floor is longer than the time for making a car respond to a rescue call from the evacuation floor, the floor is judged as a rescue floor, and when shorter, the floor is judged as a non-rescue floor. Furthermore, the order in which the rescue is carried out among the rescue floors is determined. Accordingly, it is possible to rescue remainders on a rescue floor using an elevator as an evacuation means. Moreover, since rescue operation by the elevator is performed with the order of rescue determined, rescue operation suitable for the conditions of the fire can be realized.

Disclosed is an incombustible composition for a fire door/wall, the fire door/wall using the incombustible composition, and a method of producing the fire door/wall. The incombustible composition includes 1 to 80 wt % of organic or inorganic fiber, 1 to 80 wt % of fly ash or bottom ash, 1 to 80 wt % of fire-proofing agent, 1 to 30 wt % of curing fire-retardant resin, and 1 to 40 wt % of incombustible hollow filler. Furthermore, the method includes providing the incombustible composition, mixing the fly ash or bottom ash, fire-proofing agent, and curing fire-retardant resin with each other, adding the organic or inorganic fiber into a mixture, shattering the mixture containing the organic or inorganic fiber, mixing an incombustible hollow body with the shattered mixture by use of a mixer using air, pressing the resulting mixture using a high pressure hot press to form a board or a square timber, constructing a frame of the fire door/wall using the board and/or square timber, and embedding an incombustible core material into the fire door/wall. As well, 1 to 70 wt % of the incombustible composition may be made of a waste material. Accordingly, the incombustible composition is advantageous in that the production costs are reduced, and that it is useful as a construction finishing and interior material because no fire and toxic gases occur when the incombustible composition is on fire.

The invention discloses a fire-retardant viscose fiber and a preparation method thereof, wherein a silicon and aluminum composite fire retardant is contained in the fire-retardant viscose fiber and the preparation method of the fire-retardant fiber comprises the steps of: obtaining a spinning solution through taking cellulose pulps as a raw material and subjecting to the processing steps of yellowing, dissolving, defoaming and filtering, subjecting the spinning solution to spinning and forming in a coagulating bath, subjecting to post-processing steps of washing and desulfurization, adding right amount of sodium metasilicate and sodium metasilicate solution into a cellulose viscose solution which is dissolved to any process before the spinning and then uniformly mixing. According to the invention, the silicon and aluminum composite fire retardant is utilized to ensure that the fire-retardant effect of the prepared fire-retardant viscose fiber is greatly increased and the high temperature and alkaline resistances of the fire-retardant viscose are greatly increased; and therefore, the fire-retardant viscose fiber can be popularized and applied in high-temperature environments such as the fields of high-temperature filter media, filter materials and the like.

Two slot forming components overlay through a pre-formed wall opening to form an adjustable wall passthrough slot. At least one slot surface has an intumescent layer of material positioned out of the way of documents passing through the slot. Heat from a fire will expand the intumescent material to fill the slot and prevent the spread of fire. Two inclined top and bottom slot surfaces are positioned in parallel and spaced apart by the desired thickness of the slot. A smoke shield flap of flexible fabric material hangs down within the slot to prevent the passage of smoke through the slot while allowing documents to pivot or push the smoke shield flap aside.

A bedding product, such as a pillow or cushion, that satisfactorily drawing out peculiar softness and comfort possessed by an internal filling material, realizes comfort and high flame retardance without detriment to the excellent drape and tactile sensation possessed by a fiber material of flame shielding cloth. There is provided a flame retardant bedding product comprising an internal filling material covered by a flame shielding cloth made of fibers containing 5 to 60 wt. % halogenous fiber (A), 5 to 60 wt. % flame retardant cellulose fiber (B), 0 to 75 wt. % cellulose fiber (C) and 0 to 50 wt. % polyester fiber (D).

Unit type air conditioner including a base plate in a bottom part thereof, a front panel forming a front exterior of the air conditioner, having a discharge opening in an upper part thereof, a discharge frame in the discharge opening for controlling flow of the air discharged into the room, a barrier on a center part of the base plate to divide the base plate into indoor side base and an outdoor side base, an air guide on the indoor side base, having an indoor fan mounted therein, a discharge guide for guiding the air passed through the air guide to the discharge frame, and a control box at a side of the air guide for fitting electric components therein, thereby diversifying air flow directions to a room, simplifying indoor fan and indoor motor assembly structure, and improving a structure of the control box for easy maintenance of the electric components, and preventing fire from spreading.

The invention provides a special water spray fireproof shutter device for a tunnel, which solves the technical problem of low fireproof extreme temperature of a traditional fire shutter. The special water spray fireproof shutter device for the tunnel comprises a fixed shutter (3), a movable shutter (2), a shutter brake box (8), a shutter motor box (22), a retractable smoke extraction fan (4), a fire water-supply main pipe (27), water distribution branch pipes (24) and a water spray nozzle (23); two fireproof shutter devices are arranged at the connection of a tunnel parking area (10) and a tunnel traveling area (20); the fixed shutter (3) is arranged between the shutter brake box (8) and an arched roof of the tunnel; the movable shutter (2) is arranged under the shutter brake box (8); and the water distribution branch pipes (24) communicated with the fire water-supply main pipe (27) are arranged between two movable shutter lead rails (9) vertically arranged on each vertical wall of the tunnel. The special water spray fireproof shutter device for the tunnel effectively improves the fireproof extreme temperature of the shutter and saves the cost.

An electronic device having an exhaust opening configured to exhaust air outside, the electronic device includes a door part configured to close the exhaust opening when the electronic device has a predetermined temperature, wherein the door part is rotated based on the own weight of the door part and a wind pressure of the air taken in the electronic device and exhausted outside the electronic device, so that the exhaust opening is closed.

There is provided an interchangeable lens type camera which is so safe as to prevent spread of fire when dust strays into the interior of the camera to cause heating and/or electrical leakage of the electric circuitry and invite ignition. The camera includes a case having a mount section for mounting a detachable lens; electric circuitry provided within the case; and a member covering at least a portion of the electric circuitry to prevent the electric circuitry from being exposed to the exterior when the lens is detached from the mount section.

The invention relates to a method for reducing the rate of deterioration of wood by providing an aqueous wood preservative composition having dissolved aluminum and dissolved and/or suspended silica, in which the concentration of aluminum as alumina is between about 300 mg Al₂O₃/L and 20000 mg Al₂O₃/L and the concentration of aluminum as alumina is at least two times the concentration of silica, and injecting the aqueous wood preservative composition into wood. Advantageously, the pH of the injected wood preservative composition is below about 3. Such a formulation is an effective wood preservative that is free of environmentally sensitive compounds such as copper, organic insecticides, and the like. However, such environmentally sensitive compounds can be used with the process of this invention, in some cases to bolster the biocidal effect.

The invention discloses a flame retardant distribution box. A thermal insulation layer and a flame retardant layer are arranged inside an outer shell, so that when fire occurs on the distribution box, flames are prevented from further spreading, meanwhile, the distribution box and an external circuit are connected through a made-to-order contact made of flame retardant materials, and the possibility that the flames continue to spread from the inside of the distribution box via the circuit is eliminated. The flame retardant distribution box is simple in structure and manufacturing process, and suitable for large-scale production, and has good social benefits.

The invention relates to the technical field of plastic assistants, and concretely relates to a novel fluorine-containing siloxane fire retardant, and a preparation method and an application thereof. The preparation method comprises the following steps: 1, uniformly mixing organosiloxane monomers, adding the obtained monomer mixture into a catalyst and emulsifier dissolved aqueous solution, and carrying out a reaction to obtain an organopolysiloxane emulsion; 2, adjusting the pH value of the organopolysiloxane emulsion by using an alkali liquid, adding a fluorine-containing styrene monomer and a copolymerization, adding an initiator, a crosslinking agent and a chain transfer agent, and carrying out a reaction to obtain an organosiloxane grafted fluorine-containing styrene polymer emulsion; and 3, diluting the polymer emulsion, adding a de-emulsifier to carry out demulsification, centrifuging the de-emulsified emulsion, and carrying out drying and crushing to prepare the novel fluorine-containing siloxane fire retardant. The novel fluorine-containing siloxane fire retardant prepared in the invention has excellent anti-dripping effect and fire-retardant property without affecting the mechanical properties of a high-molecular material polymer, and also can improve the mechanical properties and the heat resistance of matrix resin.

A door panel includes a surface board facing a hoistway, a back board facing a hoistway, and a reinforcing member for reinforcing the surface board and the back board. The back board is connected to the surface board or the reinforcing member by a connecting member which is capable of losing the force of constraint against the surface board or the reinforcing member on high temperature conditions during a fire. This connecting member prevents the door panel of the elevator hall door from being deformed during a building fire, and prevents the elevator hall door from falling, thus preventing smoke and flame from entering the hoistway.

To provide an air conditioning apparatus having a function for extinguishing fire when an electric component assembly ignites. An air conditioning apparatus (1) comprises a vapor compression refrigerant circuit (10) that uses carbon dioxide as a refrigerant, an electric component assembly (26, 46, 56) for controlling an operation for structural devices, and a refrigerant emission pipe (28, 48, 58) capable of emitting carbon dioxide from the refrigerant circuit (10) to the electric component assembly (26, 46, 56).

The invention relates to a lithium battery storage box which comprises a box body with an opening on the upper end, wherein the inner side surface and/or bottom surface of the box body are/is provided with a packaging structure; and the packaging structure is filled with a fire extinguishing agent capable of absorbing heat and generating flame-retardant gas. When the storage box is used for storing the lithium battery, if the local temperature of the lithium battery is too high because of the short circuit, the packaging structure can be molten by high temperature, and the fire extinguishing agent in the packaging structure can absorb heat and quickly react, thereby lowering the temperature, generating the flame-retardant gas to isolate air, and effectively preventing the lithium battery from ignition and explosion.

The invention relates to the technical field of fire alarm and particularly relates to a combined jet fire extinguishing device mounted on a fixed device. The combined jet fire extinguishing device comprises a detecting device and a fire extinguishing device and also comprises a control device for receiving a signal detected by the detecting device; the control device is simultaneously connected with the detecting device and the fire extinguishing device; the fire extinguishing device forms a combined fire extinguishing way that a fire extinguishing agent is jet towards a fireproof part from a plurality of directions; a fireproof article is provided with the detecting device and the fire extinguishing device, a fire danger is monitored in time by the detecting device, and a fire is extinguished by the fire extinguishing device, so that the problem of delay caused by artificially finding and extinguishing the fire in the prior art is solved, a fire situation can be monitored in time at the initial stage of the fire, and the fire extinguishment can be completed; in addition, due to the adoption of the combined fire extinguishing way formed from the plurality of directions, the fire extinguishing efficiency can be increased, the further spread of a fire behavior is effectively avoided, and personnel and property safety are guaranteed.