186results about How to "Effectively extinguish" patented technology

A flame-retardant wick holder for a candle is made of a material having a UL-94 vertical burn test rating of at least V-0, including polymers and ceramics. The wick holder supports a wick at the bottom of a candle. The wick holder material causes the flame on the wick to extinguish when it reaches the holder, thereby preventing flashover of the residual candle fuel at the end of the candle useful life. One version of the holder has a cylindrical sleeve fit over a wick clip holding the lower end of the wick. The cylindrical holder is well adapted for use in pillar-type candles.

The general multifunctional foam fire-extinguishing agent consists of plant protein 0.8-30 wt%, sugar 0.8-30 wt%, hydrocarbon surfactant 1-12 wt%, fluoric surfactant 0.1-5 wt% and additive 5-20 wt%, except water. The general multifunctional foam fire-extinguishing agent may be used to extinguish fire of alcohol and other polar chemical matter and/or light oil, heavy oil and other non-polar chemical matter. The general multifunctional foam fire-extinguishing agent contains no corrosive chemical matter, and has self-cleaning property, capacity of prolonging the service life of the fire-extinguishing equipment, no toxicity and no harm to human body and no environmental pollution.

The invention provides an intermittent high-rise building external wall automatic fire extinguishing system. The intermittent high-rise building external wall automatic fire extinguishing system comprises a plurality of fire detection devices, a control device, a plurality of fire extinguishing devices and a water supply device. The fire detection devices are distributed on the external wall of a building to form a fire detection network for detecting a fire situation at the outer wall of the intermittent high-rise building and transmitting the obtained information to the control device; the control device is used for acquiring a fire locus position of the intermittent high-rise building external wall according to the fire information of the fire detection devices and automatically controlling the water storage operation of the water supply device and the fire extinguishing operation of the fire extinguishing devices according to the preset procedure; the fire extinguishing devices located on the external wall of the building; each fire extinguishing device comprises a water curtain firefighting spray nozzle and a rain firefighting spray nozzle connected with a firefighting pipe in a controlling mode; the water supply device is connected with each fire extinguishing device through the fire pipe in a controlling mode to supply the water to the fire extinguishing device; the opening and closing of the firefighting pipe are controlled through the control device. According to the intermittent high-rise building external wall automatic fire extinguishing system, the role of effective fire retardance, cooling, isolation and fire fighting is achieved under the situation that the external wall of the building is on fire caused by the fire of some areas of the high-rise building or the external wall of the building is directly on fire, the spread of fire is avoided and the losses are reduced.

The present invention provides one kind of high efficiency multipurpose foam extinguishant and its preparation process. The multipurpose foam extinguishant consists of water, protecting colloid 1-2 wt%, foaming agent 5-10 wt%, fireproof filming agent 0.5-3 wt% and water for the rest. The protecting colloid is natural plant polysaccharide, chitin and its derivative; the foaming agent includes several kinds of hydrocarbon surfactants; and the fireproof filming agent includes several kinds of special surfactants. The multipurpose foam extinguishant is prepared through mixing the said components, and the preparation process is simple, high in efficiency, environment friendly and power saving. The multipurpose foam extinguishant may be applied to replace available foam extinguishants and may be used with various kinds of available foam extinguishing apparatus.

The invention discloses a method for controlling the particle size distribution and content of an ABC powder extinguishing agent, which comprises the following steps of: (1) firstly, crushing diammonium phosphate with an LF concealed and stepped super micro mill and controlling the 'particle size distribution' of the diammonium phosphate; secondly, controlling the 'particle size distribution' of other materials in 0.125 millimeter, 0.063 millimeter and 0.040 millimeter sieves and an underpan; and finally, controlling the 'particle size distribution' and 'content' of the product. The ABC powder extinguishing agent prepared by the method can effectively extinguish class A, B and C fires and electric equipment fires, has a class A, B, C fire extinguishing efficiency which is 1 to 3 times of that of the prior ABC powder extinguishing agent, saves raw material cost, improves extinguishing efficiency and can match products made in advanced countries across the world in performance.

The present invention discloses a backpack tiny water-fog extinguishing device, and comprises a backplate (5), a liquid storage tank (14) and a spraying gun (10), wherein, one side of the liquid storage tank (14) is provided with a high-pressure gas bottle (13), and the backplate (5) at the other side of the liquid storage tank (14) is provided with a gun cylinder (21) that is used for holding the spraying gun (10); the high-pressure gas bottle (13) is connected with a reducing valve (12) that is provided with one inlet connection port and two outlet connection ports; one way of the reducing valve (12) is connected with the upper part of the liquid storage tank (14) through a retaining valve (6), and the other way of the reducing valve (12) is connected with a positive-pressure air respirator (20); the positive-pressure air respirator (20) comprises an absorber reducing valve (15) that is provided with one inlet connection port and two outlet connection ports, a pressure meter (1) and an breathing mask (8), which are connected with the two outlet connection ports; with the structure, the backpack tiny water-fog extinguishing device can effectively extinguish the fire of category A, B and E; compared with the traditional device, the backpack tiny water-fog extinguishing device has more scientific and reasonable structure, and is simpler and more high-efficient to be used.

The invention relates to the field of fire fighting and fire extinguishing, and discloses an ABC ultrafine dry powder extinguishing agent and a preparation method thereof. The ABC ultrafine dry powder extinguishing agent comprises the following components in percentage by weight: 3-5% of mica powder, 3-6% of hydrophobic fumed silica, 0.9-1.5% of high-boiling silicone oil, 0.8-1.5% of water, 1-1.5% of gasoline, and the balance of type II ammonium polyphosphate. The preparation method disclosed by the invention is simple; the prepared ABC ultrafine dry powder extinguishing agent can satisfy the related requirements of a GA578-2005 ultrafine dry powder extinguishing agent, and has excellent submerging type fire-extinguishing effect; in addition, the storage period is long.

The invention relates to a dual-drive mixing fine water mist fire-extinguishing system, which comprises an external steel cylinder, liquid-state carbon dioxide, a magnetic induction generator, an electric starter, a steel cylinder ejection switch, a gas pipeline, a water level probe, a fire extinguishing agent storage tank, a fire extinguishing agent, a built-in fire extinguishing agent ejection pipeline, a water storage tank spraying nozzle switch, a pressure limiting protection valve, a base bracket, a fastening snapping ring, an external fire extinguishing agent ejection pipeline and a fine water mist spraying nozzle. According to the dual-drive mixing fine water mist fire-extinguishing system of the present invention, the high temperature gas generated after liquid-state carbon dioxide gasification is adopted as the power source, the liquid fine water mist and the gas carbon dioxide are adopted as the fire extinguishing medias, and the two fire extinguishing ways such as the gas fire extinguishing and the fine water mist fire extinguishing are used during the fire extinguishing, such that the defects that the gas fire extinguishing requires the sealed space and the fine water mist fire extinguishing can not bypass the obstructions and directly contact the combustion zone is overcome to a certain extent, the advantages of the two fire extinguishing ways are completely provided, and the defects of the two fire extinguishing ways are overcome, wherein the most significant characteristic such as the complete advantage providing and the defect overcome of the system of the present invention is distinguished from the previous single fire extinguishing way.

To promptly extinguish an arc generated between contacts with a simple and inexpensive structure without negatively influencing the spring property of a movable contact piece. A contact switching mechanism includes a fixed contact piece with a fixed contact and a movable contact piece with a movable contact which faces the fixed contact in a contactable manner. At least either one of the contact pieces is provided with an extension which extends toward the contact of the remaining contact piece.

The invention provides an aqueous foaming Newtonian concentrate, an expanded foam composition and a process of forming a foam composition concentrate. The aqueous foaming concentrate includes a carbonized saccharide mixture, a surfactant, water and optionally further agents including cross-linking agents, thickeners, solvents, stabilizers, buffers, corrosion inhibitors and preservatives. Foaming concentrates of the present invention are free of fluorine and persistent organic pollutants and particularly suited for use in fire prevention, suppression and extinguishment, vapor suppression and wetting of surfaces at concentrations less than 1.3% by weight.

The invention relates to a funnel fire extinguishing system and a fire extinguishing method.When a fire breaks out in a tunnel, a start button is pressed, or a compressed air foam gun automatically finds a fire area and is automatically started, or a worker remotely starts the compressed air foam gun, a system controller starts a compressed air foam generation device and switches on partition control valves, water flow is automatically adjusted, foam liquid and gas flow can be automatically adjusted according to water flow, compressed air foam is formed and a foam gun in a field worker handheld box is aligned to the fire area for fire exchanging, or the compressed air foam gun is automatically aligned to the fire area for jet fire extinguishing, or the worker remotely controls the compressed air foam gun to be aligned to the fire area for jet fire extinguishing.After fire extinguishing, a system restores the initial state under normal conditions.The problems that the fire extinguishing mode of an existing fire extinguishing technology in the tunnel is single, the fire extinguishing efficiency is low and safe evacuation of staff is not easy are solved.Fire extinguishing efficiency of the system is guaranteed.

The invention discloses an automatic tracking and positioning jet flow fire extinguishing system for a ship. The automatic tracking and positioning jet flow fire extinguishing system comprises a detector, a central processing unit and an automatic tracking and positioning jet flow fire extinguishing device. The detector is used for collecting and analyzing fire signals in a protection place in real time, whether a fire happens or not is judged, and if the fire happens, a fire alarm signal is sent to the central processing unit. The central processing unit is used for sending a control signal according to the received fire alarm signal to control the automatic tracking and positioning jet flow fire extinguishing device to be started. The automatic tracking and positioning jet flow fire extinguishing device is used for aiming at the fire happening position according to the received control signal to spray water so as to extinguish the fire. The automatic tracking and positioning jet flow fire extinguishing system has the capabilities of initiative fire judging, positioning and starting, the whole process from fire finding, fire confirming, system starting and jet flow fire extinguishing to water jetting stopping after fire extinguishing of the whole system is initiatively completed, the amount of sprayed water is concentrated, the flowing speed is high, the flushing amount is large, water flow can make direct contact with a combustion material to act on the roots of flames, the flames are stripped off from the combustion material so that combustion can be interrupted, and the fire can be effectively extinguished.

A preparation method of pulverized fuel ash containing inhibition slurry for controlling fire in a coal field comprises the step of adding pulverized fuel ash, aluminium phosphate, magnesium chloride, sodium carboxymethylcellulose, sodium silicate and sodium bentonite material in water to prepare high-inhibition and high-temperature-resistance pulverized fuel ash thickening slurry. The prepared thickening slurry is conveyed to a burning coal seam or a coal fracture through a grouting pipeline by a high-pressure screw pump. After a period of time, the inhibition slurry can be thickened and solidified into a solid form. The inhibition slurry can resist high temperature of above 1,000 DEG C, can form a hard blocky structure after evaporation of water, and can closely cover the coal and block the fracture. The pulverized fuel ash containing inhibition slurry is low in cost, safe and environment-friendly, and remarkable in control effect on coal spontaneous combustion fire in the coal field, and has a good application prospect.

The invention discloses a fire-proof aluminum deck of a helipad. The fire-proof aluminum deck of the helipad comprises an upper panel and a lower panel, wherein a left support and a right support are arranged between the upper panel and the lower panel; an oil passing hole is formed in the upper surface of the upper panel; a stuffing net is arranged between the upper panel and the lower panel; and a stuffing aluminum foil net is filled in an inner cavity formed by the stuffing net, the left support, the right support and the lower panel in a surrounding manner. The oil passing hole for guiding fuel oil to flow into a deck body is formed in the upper panel of the fire-proof aluminum deck, and the stuffing net and the stuffing aluminum foil net for separating flames from the fuel oil are arranged inside the deck body, so that when burning fuel oil flows into the stuffing net and the stuffing aluminum foil net through the oil passing hole, the flames on the fuel oil are separated by the stuffing net and the stuffing aluminum foil net, while the fuel oil quickly flows to the lower panel through the stuffing net and the stuffing aluminum foil net under the action of gravity and then flows out of the deck body, thus quickly and effectively putting out a flowing fire caused by fuel oil leakage on the helipad.

The invention discloses an automatic firefighting control system of a wind turbine generator system. The automatic firefighting control system is characterized by comprising an air-breathing type smoke-sensitive fire hazard detection alarm device, a firefighting monitoring device, an automatic fire extinguishing device and a shared fireproof plugging device, wherein the air-breathing type smoke-sensitive fire hazard detection alarm device comprises an air-breathing type smoke-sensitive fire hazard detector and a sampling pipeline in match; the firefighting monitoring device is arranged in a central control center of a wind power plant; the automatic fire extinguishing device comprises an automatic pulse type dry powder fire extinguishing device and an automatic aerosol fire extinguishing device for achieving total flooding fire extinguishment protection; the special firefighting plugging device is arranged at the connection part of a wind turbine generator system cabin and a tower cylinder. The automatic firefighting control system of the wind turbine generator system can sample at real time, analyze by self and determine the alarm grade automatically, so that working personnel can master the fire hazard progress at real time, accurate and reliable firefighting measures can be taken according to the alarm grade, and due to complete information self-provision and self-analysis capability, the firefighting management can be correctly and orderly executed.

The macromolecular flame-retardant fire-extinguishing agent is made up by using water soluble substrate containing anion group through the processes of cross-linking and grafting, adding correspondent flame-retardant active substrate, and mixing them with water. It is high in fire-extinguishing effect, and its performance is stable and cost is low.

The present invention features systems, methods and devices directed to fire suppression and/or extinguishment using solid carbon dioxide and/or liquid or aqueous hydrogen. Systems and methods of deployment and/or dispersal of carbon dioxide and hydrogen (which would form water at its deployment location) are contemplated. The present invention also contemplates method(s) of fire suppression and/or extinguishment which may include the steps of: carbon dioxide canister deployment, formation of a carbon dioxide curtain and hydrogen deployment and/or dispersal.

The invention belongs to the technical field of aluminum alloy doors, and particularly relates to an aluminum alloy door with a fireproof function. The aluminum alloy door aims at solving the problemsthat when people open a door body of an existing aluminum alloy door, if the wind power is large or the force generated when people close the door is too large, the door body can be quickly closed, severe impact force is caused, and the service life of the aluminum alloy door is affected. According to the scheme, the aluminum alloy door comprises a door frame, wherein a mounting opening is formedin the door frame in a penetrating mode, a door body is hinged to the mounting opening, a u-shaped support is slidably connected to the front end face of the door frame, a temperature sensor fixed tothe front end face of the door frame is arranged below the door body, and a control panel fixed to the front end face of the door frame is arranged above the u-shaped support. According to the aluminum alloy door, through a buffer mechanism, the force generated when the door body is naturally closed can be buffered, the problem that the impact force generated when the door body is naturally closed is too large under the influence of strong wind or manpower is avoided, and the service life of the door body is greatly prolonged.

The invention relates to an extinguishing method and device by two-phase flow water-mist of preheated water. The method is characterized by comprising the following steps of: preheating the water before extinguishing fire, guiding the preheated water into a two-phase flow ultrafine water mist nozzle through a spiral-flow atomization mixer, and spraying the water mist to extinguish fire by adopting a stepwise extinguishing manner, i.e. carrying out single-phase flow preheated water extinguishment within 30 seconds after the system is started, and preheating a protected area; and starting a gaspath to carry out two-phase flow fire extinguishment after 30 seconds. The invention further discloses an extinguishing device by water-mist of the preheated water, which is characterized in that a heating device is additionally arranged in an extinguisher, wherein the water-mist extinguishing device is used for carrying out the single-phase flow preheated water fire extinguishment within 30s after the system is started, the protected area is preheated, and the gas path is started after 30s for carrying out the two-phase flow fire extinguishment.