7 results about "Noxious fumes" patented technology

The invention discloses a fireproof door capable of preventing smoke diffusion, and particularly relates to the technical field of fireproof doors, the fireproof door comprises a mounting shell, filling grooves are formed in the left side and the right side of the upper portion and the lower portion of the mounting shell, filling assemblies are arranged on the inner surfaces of the multiple filling grooves, and the multiple filling assemblies penetrate through the mounting shell; a protection shell is arranged on the inner surface of the mounting shell, a smoke isolation device is arranged in the middle of the protection cavity, and a sliding groove is formed in the left portion of the front end of the protection shell. According to the fireproof door capable of preventing smoke from diffusing, through the smoke isolating device, the mounting shell and the protective shell can be sealed up and down and left and right, so that smoke cannot enter the other side of the fireproof door, toxic smoke is prevented from being inhaled into the human body, and therefore the situation that the human body is injured due to poisoning is avoided; and meanwhile, the filling assembly is arranged, so that the four corners of the protection assembly can be closed, smoke is blocked, and the smoke isolation effect is better.

This invention relates to the field of aviation safety technology, and discloses a suppression device and control method for abnormal lithium battery fires in civil aviation. The device includes an openable, closable box-shaped suppression isolator, which consists of a flame-retardant intermediate layer, a metal partition inner layer, and a plastic outer layer. An integrated detection component monitors temperature, smoke, and characteristic gases. An extinguishing agent release component includes an aerosol extinguishing agent generator and a perfluorohexanone coolant storage tank. The control system performs graded early warning and linkage control based on multi-sensor data regarding thermal runaway intensity and lithium battery capacity. A fire-resistant sealed bag is connected to the isolator via a pressure relief valve to achieve directional emission of harmful gases. Through automatic detection, graded response, two-stage fire extinguishing cooling, and closed-loop feedback regulation, open flames can be quickly extinguished in a confined environment and reignition prevented, while simultaneously avoiding the spread of toxic fumes, thus improving the safety and efficiency of handling high-altitude lithium battery fires.

The present disclosure relates to a barrier system for shielding humans from harmful exposure to fire, smoke, noxious fumes, or contaminated air. Some embodiments provide a deployable barrier system that has a barrier retract assist system configured to assist a user in manually moving the barrier from the deployed position toward the retracted position with at least a portion of the barrier being rolled onto the barrel portion for egress past the barrier. The retract assist system can be positioned inside of the barrel portion.

The utility model discloses an inorganic cloth fireproof roller shutter, which is characterized in that a drain pipe is arranged below a roller shutter structure, and a plurality of spray heads are uniformly arranged on the lower side of the drain pipe along the direction of a notch, so that a water spray system can be started at the first time when a fire disaster or toxic smog occurs; water mist sprayed by the spray heads quickly forms a continuous water curtain barrier in front of the roller shutter. The water curtain not only has a physical isolation effect, but also can effectively capture and cool high-temperature smoke and harmful particles, obviously reduce the concentration and diffusion speed of smoke, and prevent the smoke from spreading from a fire disaster area to other safe areas. Compared with a traditional dry type fireproof roller shutter, the structure improves the smoke prevention performance, and the flowing path of smoke in a building in the initial stage of a fire disaster can be controlled easily.

The application discloses a kind of A-grade non-combustible electric floor and its preparation process, comprising the following steps: substrate preparation: inorganic non-combustible material is selected as the main body of substrate;Fireproof layer composite: at least one fireproof insulation layer is compounded on the substrate by one-time hot press forming process;Heating layer setting: heating layer is set on the fireproof insulation layer, and the heating layer is driven by 36V and below safe voltage;Surface layer press pastes: decorative layer and wear-resistant layer are sequentially pressed and pasted on the heating layer to form floor blank;Connection structure processing: straight insertion type lock catch connection structure is processed on the side edge of the floor blank, which realizes circuit conduction while connecting floor, and inorganic non-combustible material is selected as the main body of substrate, which significantly simplifies production process, reduces chemical reagent consumption and wastewater treatment cost, and at the same time, inorganic material does not release toxic smoke at high temperature, and there is no melting phenomenon, which fundamentally eliminates secondary hazards caused by material decomposition in fire.

The utility model relates to the technical field of storage cabins, in particular to a safe storage cabin for dangerous chemicals, which comprises a cabin body, universal wheels with locking functions are arranged on the bottom surface of the cabin body, the cabin body is divided into a placing cabin and a vacuum cabin by a partition plate, a cabin opening is formed in the top surface of the placing cabin and is sealed by a cover plate, and the vacuum cabin is arranged in the cabin body. The vacuum cabin and the placing cabin are communicated through a connecting pipe penetrating through the partition plate, the connecting pipe is sealed through an electromagnetic valve, the vacuum cabin is communicated with an exhaust pipe, the exhaust pipe is sealed through a valve, a placing frame for clamping chemical bottles is arranged in the placing cabin, and a smoke sensor is arranged in the placing cabin. By means of the chemical bottle cleaning device, when toxic smoke or liquid is generated when a chemical bottle leaks or breaks, the toxic smoke can be collected through the vacuum chamber, the liquid can be collected through the liquid storage chamber, and therefore toxic gas in the containing chamber is reduced to a certain concentration, the influence on the external environment is reduced, and meanwhile harm to surrounding people is reduced.

The utility model relates to the technical field of door and window structures, in particular to a novel fireproof partition door and window structure. Comprising a window frame and a door frame which are fixedly connected, a fireproof door is rotationally arranged in the door frame, a door lock is fixedly arranged on the fireproof door, fireproof glass is arranged in the window frame, a containing groove is formed in the window frame, a fireproof expansion layer fixedly connected to the window frame is arranged on the edge of the containing groove, and the fireproof glass is installed in the containing groove. According to the fireproof door and window frame, the fireproof expansion layer is arranged in the containing groove, the fireproof expansion layer rapidly expands to form a compact carbonization layer when meeting fire, tiny gaps (smaller than or equal to 1 mm) between the door and window frame and the glass and between the door and window frame and the door plate are filled, permeation paths of flames, high-temperature gas (larger than or equal to 300 DEG C) and toxic smoke are blocked, the fire spreading time is prolonged to 90 minutes or above, and therefore the technical problem is solved.